diff options
Diffstat (limited to 'Game/Code/lib/JEDI-SDL/SDL/Pas')
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/Readme.txt | 52 | ||||
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/jedi-sdl.inc | 876 | ||||
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/libxmlparser.pas | 5376 | ||||
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/logger.pas | 376 | ||||
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/moduleloader.pas | 638 | ||||
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/registryuserpreferences.pas | 458 | ||||
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/sdl_cpuinfo.pas | 308 | ||||
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/sdlgameinterface.pas | 404 | ||||
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/sdli386utils.pas | 10472 | ||||
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/sdlinput.pas | 1846 | ||||
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas | 432 | ||||
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/sdlticks.pas | 392 | ||||
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/sdlutils.pas | 8726 | ||||
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/sdlwindow.pas | 1132 | ||||
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/userpreferences.pas | 318 |
15 files changed, 15903 insertions, 15903 deletions
diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/Readme.txt b/Game/Code/lib/JEDI-SDL/SDL/Pas/Readme.txt index 76d63a9d..f176d0c9 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/Readme.txt +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/Readme.txt @@ -1,27 +1,27 @@ -Delphi interface unit for OpenGL version 1.2 compilable with Delphi 3-6 and Kylix.
-
-This unit is open source under the Mozilla Public License and
-the original author is Dipl. Ing. Mike Lischke (public@lischke-online.de).
-
-You can obtain this unit also from the JEDI (Joint Endeavor of Delphi Innovators)
-API page at www.delphi-jedi.org.
-
-Note for GLScene users: Eric Grange has provided a general vector types unit which
-resolves conflicts for types which are defined in OpenGL12.pas as well as Geometry.pas.
-This unit is located in the sub folder "GLScene AddOn".
-Please add this unit to the uses clause of OpenGL12.pas and remove the few types which
-are already declared in VectorTypes.pas.
-
-For tests and as starting point three demos are included into the package. Two of them (GLDiag and GLTest)
-need the (also provided) simple OpenGL control GLControl (see "GLControl\Package").
-
-- Basic is a very simple test program which only uses an empty form.
-- GLTest (in GLControl) uses GLControl to show four rendering contexts simultanously.
-- GLDiag is a diagnosis tool similar to DXDiag which shows some properties of the current
- OpenGL driver implementation.
-
-Have fun and
-
-Ciao, Mike
-www.lischke-online.de
+Delphi interface unit for OpenGL version 1.2 compilable with Delphi 3-6 and Kylix. + +This unit is open source under the Mozilla Public License and +the original author is Dipl. Ing. Mike Lischke (public@lischke-online.de). + +You can obtain this unit also from the JEDI (Joint Endeavor of Delphi Innovators) +API page at www.delphi-jedi.org. + +Note for GLScene users: Eric Grange has provided a general vector types unit which +resolves conflicts for types which are defined in OpenGL12.pas as well as Geometry.pas. +This unit is located in the sub folder "GLScene AddOn". +Please add this unit to the uses clause of OpenGL12.pas and remove the few types which +are already declared in VectorTypes.pas. + +For tests and as starting point three demos are included into the package. Two of them (GLDiag and GLTest) +need the (also provided) simple OpenGL control GLControl (see "GLControl\Package"). + +- Basic is a very simple test program which only uses an empty form. +- GLTest (in GLControl) uses GLControl to show four rendering contexts simultanously. +- GLDiag is a diagnosis tool similar to DXDiag which shows some properties of the current + OpenGL driver implementation. + +Have fun and + +Ciao, Mike +www.lischke-online.de www.delphi-unicode.net
\ No newline at end of file diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/jedi-sdl.inc b/Game/Code/lib/JEDI-SDL/SDL/Pas/jedi-sdl.inc index 31283d40..0130ad32 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/jedi-sdl.inc +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/jedi-sdl.inc @@ -1,438 +1,438 @@ -{
- $Id: jedi-sdl.inc,v 1.15 2007/05/29 21:30:48 savage Exp $
-}
-{******************************************************************************}
-{ }
-{ Borland Delphi SDL - Simple DirectMedia Layer }
-{ Global Conditional Definitions for JEDI-SDL cross-compilation }
-{ }
-{ }
-{ The initial developer of this Pascal code was : }
-{ Prof. Abimbola Olowofoyeku <http://www.bigfoot.com/~African_Chief/> }
-{ }
-{ Portions created by Prof. Abimbola Olowofoyeku are }
-{ Copyright (C) 2000 - 2100 Prof. Abimbola Olowofoyeku. }
-{ }
-{ }
-{ Contributor(s) }
-{ -------------- }
-{ Prof. Abimbola Olowofoyeku <http://www.bigfoot.com/~African_Chief/> }
-{ Dominqiue Louis <Dominique@SavageSoftware.com.au> }
-{ }
-{ Obtained through: }
-{ Joint Endeavour of Delphi Innovators ( Project JEDI ) }
-{ }
-{ You may retrieve the latest version of this file at the Project }
-{ JEDI home page, located at http://delphi-jedi.org }
-{ }
-{ The contents of this file are used with permission, subject to }
-{ the Mozilla Public License Version 1.1 (the "License"); you may }
-{ not use this file except in compliance with the License. You may }
-{ obtain a copy of the License at }
-{ http://www.mozilla.org/MPL/MPL-1.1.html }
-{ }
-{ Software distributed under the License is distributed on an }
-{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or }
-{ implied. See the License for the specific language governing }
-{ rights and limitations under the License. }
-{ }
-{ Description }
-{ ----------- }
-{ This code has been copied from... }
-{ Global Conditional Definitions for Chief's UNZIP package }
-{ By Prof. Abimbola Olowofoyeku (The African Chief) }
-{ http://www.bigfoot.com/~African_Chief/ }
-{ }
-{ }
-{ Requires }
-{ -------- }
-{ The SDL Runtime libraris on Win32 : SDL.dll on Linux : libSDL.so }
-{ They are available from... }
-{ http://www.libsdl.org . }
-{ }
-{ Programming Notes }
-{ ----------------- }
-{ }
-{ }
-{ }
-{ }
-{ Revision History }
-{ ---------------- }
-{ 2003-04-03 DL - Initial addition }
-{ }
-{ 2003-04-07 DL - Added Macro ON derective for FPC and OpenGL and removed }
-{ WEAKPACKAGE derective. WEAKPACKAGE should be set when }
-{ appropriate. }
-{ }
-{ 2003-04-23 - DL : under instruction from Alexey Barkovoy I have added }
-{ better TMT Pascal support and under instruction }
-{ from Prof. Abimbola Olowofoyeku (The African Chief) }
-{ I have added better Gnu Pascal support }
-{ }
-{ 2004-01-19 - DL : Under instruction from Marco van de Voort, I have added }
-{ Better FPC support for FreeBSD. }
-{ }
-(*
- $Log: jedi-sdl.inc,v $
- Revision 1.15 2007/05/29 21:30:48 savage
- Changes as suggested by Almindor for 64bit compatibility.
-
- Revision 1.14 2007/05/20 20:29:11 savage
- Initial Changes to Handle 64 Bits
-
- Revision 1.13 2007/01/21 15:51:45 savage
- Added Delphi 2006 support
-
- Revision 1.12 2006/11/19 18:41:01 savage
- removed THREADING ON flag as it is no longer needed in latest versions of FPC.
-
- Revision 1.11 2006/01/04 00:52:41 drellis
- Updated to include defined for ENDIAN values, SDL_BYTEORDER should now be correctly defined depending onthe platform. Code taken from sdl_mixer
-
- Revision 1.10 2005/05/22 18:42:31 savage
- Changes as suggested by Michalis Kamburelis. Thanks again.
-
- Revision 1.9 2004/12/23 23:42:17 savage
- Applied Patches supplied by Michalis Kamburelis ( THANKS! ), for greater FreePascal compatability.
-
- Revision 1.8 2004/10/20 22:43:04 savage
- Ensure that UNSAFE type warning are off in D9 as well
-
- Revision 1.7 2004/04/05 09:59:51 savage
- Changes for FreePacal as suggested by Marco
-
- Revision 1.6 2004/03/31 22:18:15 savage
- Small comment for turning off warning under GnuPascal
-
- Revision 1.5 2004/03/30 22:41:02 savage
- Added extra commenting due to previous compiler directive
-
- Revision 1.4 2004/03/30 22:08:33 savage
- Added Kylix Define
-
- Revision 1.3 2004/03/30 21:34:40 savage
- {$H+} needed for FPC compatiblity
-
- Revision 1.2 2004/02/14 00:23:39 savage
- As UNIX is defined in jedi-sdl.inc this will be used to check linux compatability as well. Units have been changed to reflect this change.
-
-*)
-{******************************************************************************}
-
-{.$define Debug} { uncomment for debugging }
-
-{$IFNDEF FPC}
- {$IFDEF __GPC__}
- {$I-}
- {$W-} // turn off GPC warnings
- {$X+}
- {$ELSE} {__GPC__}
- {$IFDEF Debug}
- {$F+,D+,Q-,L+,R+,I-,S+,Y+,A+}
- {$ELSE}
- {$F+,Q-,R-,S-,I-,A+}
- {$ENDIF}
- {$ENDIF} {__GPC__}
-{$ELSE} {FPC}
- //{$M+}
-{$ENDIF} {FPC}
-
-{$IFDEF LINUX}
-{$DEFINE UNIX}
-{$ENDIF}
-
-{$IFDEF ver70}
- {$IFDEF Windows}
- {$DEFINE Win16}
- {$ENDIF Windows}
- {$IFDEF MSDOS}
- {$DEFINE NO_EXPORTS}
- {$ENDIF MSDOS}
- {$IFDEF DPMI}
- {$DEFINE BP_DPMI}
- {$ENDIF}
- {$DEFINE OS_16_BIT}
- {$DEFINE __OS_DOS__}
-{$ENDIF ver70}
-
-{$IFDEF ver80}
- {$DEFINE Delphi} {Delphi 1.x}
- {$DEFINE Delphi16}
- {$DEFINE Win16}
- {$DEFINE OS_16_BIT}
- {$DEFINE __OS_DOS__}
-{$ENDIF ver80}
-
-{$IFDEF ver90}
- {$DEFINE Delphi} {Delphi 2.x}
- {$DEFINE Delphi32}
- {$DEFINE WIN32}
- {$DEFINE WINDOWS}
-{$ENDIF ver90}
-
-{$IFDEF ver100}
- {$DEFINE Delphi} {Delphi 3.x}
- {$DEFINE Delphi32}
- {$DEFINE WIN32}
- {$DEFINE WINDOWS}
-{$ENDIF ver100}
-
-{$IFDEF ver93}
- {$DEFINE Delphi} {C++ Builder 1.x}
- {$DEFINE Delphi32}
- {$DEFINE WINDOWS}
-{$ENDIF ver93}
-
-{$IFDEF ver110}
- {$DEFINE Delphi} {C++ Builder 3.x}
- {$DEFINE Delphi32}
- {$DEFINE WINDOWS}
-{$ENDIF ver110}
-
-{$IFDEF ver120}
- {$DEFINE Delphi} {Delphi 4.x}
- {$DEFINE Delphi32}
- {$DEFINE Delphi4UP}
- {$DEFINE Has_Int64}
- {$DEFINE WINDOWS}
-{$ENDIF ver120}
-
-{$IFDEF ver130}
- {$DEFINE Delphi} {Delphi 5.x}
- {$DEFINE Delphi32}
- {$DEFINE Delphi4UP}
- {$DEFINE Delphi5UP}
- {$DEFINE Has_Int64}
- {$DEFINE WINDOWS}
-{$ENDIF ver130}
-
-{$IFDEF ver140}
- {$DEFINE Delphi} {Delphi 6.x}
- {$DEFINE Delphi32}
- {$DEFINE Delphi4UP}
- {$DEFINE Delphi5UP}
- {$DEFINE Delphi6UP}
- {$DEFINE Has_Int64}
- {$DEFINE HAS_TYPES}
-{$ENDIF ver140}
-
-{$IFDEF ver150}
- {$DEFINE Delphi} {Delphi 7.x}
- {$DEFINE Delphi32}
- {$DEFINE Delphi4UP}
- {$DEFINE Delphi5UP}
- {$DEFINE Delphi6UP}
- {$DEFINE Delphi7UP}
- {$WARN UNSAFE_TYPE OFF} {Disable warning for unsafe types in Delphi 7}
- {$DEFINE Has_Int64}
- {$DEFINE HAS_TYPES}
-{$ENDIF ver150}
-
-{$IFDEF ver160}
- {$DEFINE Delphi} {Delphi 8}
- {$DEFINE Delphi32}
- {$DEFINE Delphi4UP}
- {$DEFINE Delphi5UP}
- {$DEFINE Delphi6UP}
- {$DEFINE Delphi7UP}
- {$DEFINE Delphi8UP}
- {$DEFINE Has_Int64}
- {$DEFINE HAS_TYPES}
-{$ENDIF ver160}
-
-{$IFDEF ver170}
- {$DEFINE Delphi} {Delphi 2005}
- {$DEFINE Delphi32}
- {$DEFINE Delphi4UP}
- {$DEFINE Delphi5UP}
- {$DEFINE Delphi6UP}
- {$DEFINE Delphi7UP}
- {$DEFINE Delphi8UP}
- {$DEFINE Delphi9UP}
- {$WARN UNSAFE_TYPE OFF} {Disable warning for unsafe types in Delphi 7}
- {$DEFINE Has_Int64}
- {$DEFINE HAS_TYPES}
-{$ENDIF ver170}
-
-{$IFDEF ver180}
- {$DEFINE Delphi} {Delphi 2006}
- {$DEFINE Delphi32}
- {$DEFINE Delphi4UP}
- {$DEFINE Delphi5UP}
- {$DEFINE Delphi6UP}
- {$DEFINE Delphi7UP}
- {$DEFINE Delphi8UP}
- {$DEFINE Delphi9UP}
- {$DEFINE Delphi10UP}
- {$WARN UNSAFE_TYPE OFF} {Disable warning for unsafe types in Delphi 7}
- {$DEFINE Has_Int64}
- {$DEFINE HAS_TYPES}
-{$ENDIF ver180}
-
-{$IFDEF ver185}
- {$DEFINE Delphi} {Delphi 2007}
- {$DEFINE Delphi32}
- {$DEFINE Delphi4UP}
- {$DEFINE Delphi5UP}
- {$DEFINE Delphi6UP}
- {$DEFINE Delphi7UP}
- {$DEFINE Delphi8UP}
- {$DEFINE Delphi9UP}
- {$DEFINE Delphi10UP}
- {$WARN UNSAFE_TYPE OFF} {Disable warning for unsafe types in Delphi 7}
- {$DEFINE Has_Int64}
- {$DEFINE HAS_TYPES}
-{$ENDIF ver180}
-
-{$IFDEF UNIX}
- {$ifdef VER140} // Kylix 1 & 2
- {$DEFINE KYLIX}
- {$DEFINE KYLIX1UP}
- {$DEFINE KYLIX2UP}
- {$DEFINE HAS_TYPES}
- {$endif}
-
- {$ifdef VER150} // Kylix 3
- {$DEFINE KYLIX}
- {$DEFINE KYLIX1UP}
- {$DEFINE KYLIX2UP}
- {$DEFINE KYLIX3UP}
- {$DEFINE HAS_TYPES}
- {$endif}
-{$ENDIF UNIX}
-
-{$IFDEF VirtualPascal} { Virtual Pascal 2.x }
- {$DEFINE Delphi} { Use Delphi Syntax }
- {$DEFINE VP2}
- {&Delphi+}
-{$ENDIF VirtualPascal}
-
-{$IFDEF Delphi}
- {$DEFINE Windows}
- {$DEFINE USE_STDCALL}
- //{$ALIGN ON}
-{$ENDIF Delphi}
-
-{$IFDEF FPC}
- {$MODE Delphi} { use Delphi compatibility mode }
- {$H+}
- {$PACKRECORDS C} // Added for record
- {$MACRO ON} // Added For OpenGL
- {$DEFINE Delphi}
- {$DEFINE UseAT}
- {$UNDEF USE_STDCALL}
- {$DEFINE OS_BigMem}
- {$DEFINE NO_EXPORTS}
- {$DEFINE Has_Int64}
- {$DEFINE NOCRT}
- {$IFDEF UNIX}
- {$DEFINE fpc_unix}
- {$ELSE}
- {$DEFINE __OS_DOS__}
- {$ENDIF}
- {$IFDEF WIN32}
- {$DEFINE UseWin}
- {$ENDIF}
- {$DEFINE HAS_TYPES}
-{$ENDIF FPC}
-
-{$IFDEF Win16}
- {$K+} {smart callbacks}
-{$ENDIF Win16}
-
- {$IFDEF OS2}
- {$UNDEF Windows}
- {$DEFINE UseWin}
- {$DEFINE OS_BigMem}
- {$ENDIF OS2}
-
-{$IFDEF __GPC__}
- {$UNDEF UseWin}
- {$UNDEF USE_STDCALL}
- {$DEFINE OS_BigMem}
- {$DEFINE NO_EXPORTS}
- {$DEFINE NOCRT}
- {$DEFINE cdecl attribute(cdecl)}
-{$ENDIF}
-
-{$IFDEF __TMT__}
- {$DEFINE OS_BigMem}
- {$DEFINE NO_EXPORTS}
- {$DEFINE __OS_DOS__}
- {$DEFINE UseAT}
- {$IFNDEF MSDOS}
- {$DEFINE USE_STDCALL}
- {$ENDIF}
-
- {$IFDEF __WIN32__}
- {$DEFINE Win32}
- {$DEFINE UseWin}
- {$DEFINE NOCRT}
- {$DEFINE Win32}
- {$IFNDEF __CON__}
- {$DEFINE Windows}
- {$ENDIF}
- {$ENDIF}
-
- {$A+} // Word alignment data
- {$OA+} // Objects and structures align
-{$ENDIF}
-
-{$IFDEF Win32}
- {$DEFINE OS_BigMem}
-{$ELSE Win32}
- {$IFDEF ver70}
- {$DEFINE assembler}
- {$ENDIF} { use 16-bit assembler! }
-{$ENDIF Win32}
-
-{ ************************** dos/dos-like platforms **************}
-{$IFDEF Windows}
- {$DEFINE __OS_DOS__}
- {$DEFINE UseWin}
- {$DEFINE MSWINDOWS}
-{$ENDIF Delphi}
-
-{$IFDEF OS2}
- {$DEFINE __OS_DOS__}
- {$DEFINE Can_Use_DLL}
-{$ENDIF Delphi}
-
-{$IFDEF UseWin}
- {$DEFINE Can_Use_DLL}
-{$ENDIF}
-
-{$IFDEF Win16}
- {$DEFINE Can_Use_DLL}
-{$ENDIF}
-
-{$IFDEF BP_DPMI}
- {$DEFINE Can_Use_DLL}
-{$ENDIF}
-
-{$IFDEF USE_STDCALL}
- {$IFNDEF __TMT__}
- {$DEFINE BY_NAME}
- {$ENDIF}
-{$ENDIF}
-
-{$IFNDEF ver70}
- {$UNDEF assembler}
-{$ENDIF}
-
-{*************** define LITTLE ENDIAN platforms ********************}
-
-
-{$IFDEF Delphi}
-{$DEFINE IA32}
-{$ENDIF}
-
-{$IFDEF KYLIX}
-{$DEFINE IA32}
-{$ENDIF}
-
-{$IFDEF FPC}
-{$IFDEF FPC_LITTLE_ENDIAN}
-{$DEFINE IA32}
-{$ENDIF}
-{$ENDIF}
+{ + $Id: jedi-sdl.inc,v 1.15 2007/05/29 21:30:48 savage Exp $ +} +{******************************************************************************} +{ } +{ Borland Delphi SDL - Simple DirectMedia Layer } +{ Global Conditional Definitions for JEDI-SDL cross-compilation } +{ } +{ } +{ The initial developer of this Pascal code was : } +{ Prof. Abimbola Olowofoyeku <http://www.bigfoot.com/~African_Chief/> } +{ } +{ Portions created by Prof. Abimbola Olowofoyeku are } +{ Copyright (C) 2000 - 2100 Prof. Abimbola Olowofoyeku. } +{ } +{ } +{ Contributor(s) } +{ -------------- } +{ Prof. Abimbola Olowofoyeku <http://www.bigfoot.com/~African_Chief/> } +{ Dominqiue Louis <Dominique@SavageSoftware.com.au> } +{ } +{ Obtained through: } +{ Joint Endeavour of Delphi Innovators ( Project JEDI ) } +{ } +{ You may retrieve the latest version of this file at the Project } +{ JEDI home page, located at http://delphi-jedi.org } +{ } +{ The contents of this file are used with permission, subject to } +{ the Mozilla Public License Version 1.1 (the "License"); you may } +{ not use this file except in compliance with the License. You may } +{ obtain a copy of the License at } +{ http://www.mozilla.org/MPL/MPL-1.1.html } +{ } +{ Software distributed under the License is distributed on an } +{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } +{ implied. See the License for the specific language governing } +{ rights and limitations under the License. } +{ } +{ Description } +{ ----------- } +{ This code has been copied from... } +{ Global Conditional Definitions for Chief's UNZIP package } +{ By Prof. Abimbola Olowofoyeku (The African Chief) } +{ http://www.bigfoot.com/~African_Chief/ } +{ } +{ } +{ Requires } +{ -------- } +{ The SDL Runtime libraris on Win32 : SDL.dll on Linux : libSDL.so } +{ They are available from... } +{ http://www.libsdl.org . } +{ } +{ Programming Notes } +{ ----------------- } +{ } +{ } +{ } +{ } +{ Revision History } +{ ---------------- } +{ 2003-04-03 DL - Initial addition } +{ } +{ 2003-04-07 DL - Added Macro ON derective for FPC and OpenGL and removed } +{ WEAKPACKAGE derective. WEAKPACKAGE should be set when } +{ appropriate. } +{ } +{ 2003-04-23 - DL : under instruction from Alexey Barkovoy I have added } +{ better TMT Pascal support and under instruction } +{ from Prof. Abimbola Olowofoyeku (The African Chief) } +{ I have added better Gnu Pascal support } +{ } +{ 2004-01-19 - DL : Under instruction from Marco van de Voort, I have added } +{ Better FPC support for FreeBSD. } +{ } +(* + $Log: jedi-sdl.inc,v $ + Revision 1.15 2007/05/29 21:30:48 savage + Changes as suggested by Almindor for 64bit compatibility. + + Revision 1.14 2007/05/20 20:29:11 savage + Initial Changes to Handle 64 Bits + + Revision 1.13 2007/01/21 15:51:45 savage + Added Delphi 2006 support + + Revision 1.12 2006/11/19 18:41:01 savage + removed THREADING ON flag as it is no longer needed in latest versions of FPC. + + Revision 1.11 2006/01/04 00:52:41 drellis + Updated to include defined for ENDIAN values, SDL_BYTEORDER should now be correctly defined depending onthe platform. Code taken from sdl_mixer + + Revision 1.10 2005/05/22 18:42:31 savage + Changes as suggested by Michalis Kamburelis. Thanks again. + + Revision 1.9 2004/12/23 23:42:17 savage + Applied Patches supplied by Michalis Kamburelis ( THANKS! ), for greater FreePascal compatability. + + Revision 1.8 2004/10/20 22:43:04 savage + Ensure that UNSAFE type warning are off in D9 as well + + Revision 1.7 2004/04/05 09:59:51 savage + Changes for FreePacal as suggested by Marco + + Revision 1.6 2004/03/31 22:18:15 savage + Small comment for turning off warning under GnuPascal + + Revision 1.5 2004/03/30 22:41:02 savage + Added extra commenting due to previous compiler directive + + Revision 1.4 2004/03/30 22:08:33 savage + Added Kylix Define + + Revision 1.3 2004/03/30 21:34:40 savage + {$H+} needed for FPC compatiblity + + Revision 1.2 2004/02/14 00:23:39 savage + As UNIX is defined in jedi-sdl.inc this will be used to check linux compatability as well. Units have been changed to reflect this change. + +*) +{******************************************************************************} + +{.$define Debug} { uncomment for debugging } + +{$IFNDEF FPC} + {$IFDEF __GPC__} + {$I-} + {$W-} // turn off GPC warnings + {$X+} + {$ELSE} {__GPC__} + {$IFDEF Debug} + {$F+,D+,Q-,L+,R+,I-,S+,Y+,A+} + {$ELSE} + {$F+,Q-,R-,S-,I-,A+} + {$ENDIF} + {$ENDIF} {__GPC__} +{$ELSE} {FPC} + //{$M+} +{$ENDIF} {FPC} + +{$IFDEF LINUX} +{$DEFINE UNIX} +{$ENDIF} + +{$IFDEF ver70} + {$IFDEF Windows} + {$DEFINE Win16} + {$ENDIF Windows} + {$IFDEF MSDOS} + {$DEFINE NO_EXPORTS} + {$ENDIF MSDOS} + {$IFDEF DPMI} + {$DEFINE BP_DPMI} + {$ENDIF} + {$DEFINE OS_16_BIT} + {$DEFINE __OS_DOS__} +{$ENDIF ver70} + +{$IFDEF ver80} + {$DEFINE Delphi} {Delphi 1.x} + {$DEFINE Delphi16} + {$DEFINE Win16} + {$DEFINE OS_16_BIT} + {$DEFINE __OS_DOS__} +{$ENDIF ver80} + +{$IFDEF ver90} + {$DEFINE Delphi} {Delphi 2.x} + {$DEFINE Delphi32} + {$DEFINE WIN32} + {$DEFINE WINDOWS} +{$ENDIF ver90} + +{$IFDEF ver100} + {$DEFINE Delphi} {Delphi 3.x} + {$DEFINE Delphi32} + {$DEFINE WIN32} + {$DEFINE WINDOWS} +{$ENDIF ver100} + +{$IFDEF ver93} + {$DEFINE Delphi} {C++ Builder 1.x} + {$DEFINE Delphi32} + {$DEFINE WINDOWS} +{$ENDIF ver93} + +{$IFDEF ver110} + {$DEFINE Delphi} {C++ Builder 3.x} + {$DEFINE Delphi32} + {$DEFINE WINDOWS} +{$ENDIF ver110} + +{$IFDEF ver120} + {$DEFINE Delphi} {Delphi 4.x} + {$DEFINE Delphi32} + {$DEFINE Delphi4UP} + {$DEFINE Has_Int64} + {$DEFINE WINDOWS} +{$ENDIF ver120} + +{$IFDEF ver130} + {$DEFINE Delphi} {Delphi 5.x} + {$DEFINE Delphi32} + {$DEFINE Delphi4UP} + {$DEFINE Delphi5UP} + {$DEFINE Has_Int64} + {$DEFINE WINDOWS} +{$ENDIF ver130} + +{$IFDEF ver140} + {$DEFINE Delphi} {Delphi 6.x} + {$DEFINE Delphi32} + {$DEFINE Delphi4UP} + {$DEFINE Delphi5UP} + {$DEFINE Delphi6UP} + {$DEFINE Has_Int64} + {$DEFINE HAS_TYPES} +{$ENDIF ver140} + +{$IFDEF ver150} + {$DEFINE Delphi} {Delphi 7.x} + {$DEFINE Delphi32} + {$DEFINE Delphi4UP} + {$DEFINE Delphi5UP} + {$DEFINE Delphi6UP} + {$DEFINE Delphi7UP} + {$WARN UNSAFE_TYPE OFF} {Disable warning for unsafe types in Delphi 7} + {$DEFINE Has_Int64} + {$DEFINE HAS_TYPES} +{$ENDIF ver150} + +{$IFDEF ver160} + {$DEFINE Delphi} {Delphi 8} + {$DEFINE Delphi32} + {$DEFINE Delphi4UP} + {$DEFINE Delphi5UP} + {$DEFINE Delphi6UP} + {$DEFINE Delphi7UP} + {$DEFINE Delphi8UP} + {$DEFINE Has_Int64} + {$DEFINE HAS_TYPES} +{$ENDIF ver160} + +{$IFDEF ver170} + {$DEFINE Delphi} {Delphi 2005} + {$DEFINE Delphi32} + {$DEFINE Delphi4UP} + {$DEFINE Delphi5UP} + {$DEFINE Delphi6UP} + {$DEFINE Delphi7UP} + {$DEFINE Delphi8UP} + {$DEFINE Delphi9UP} + {$WARN UNSAFE_TYPE OFF} {Disable warning for unsafe types in Delphi 7} + {$DEFINE Has_Int64} + {$DEFINE HAS_TYPES} +{$ENDIF ver170} + +{$IFDEF ver180} + {$DEFINE Delphi} {Delphi 2006} + {$DEFINE Delphi32} + {$DEFINE Delphi4UP} + {$DEFINE Delphi5UP} + {$DEFINE Delphi6UP} + {$DEFINE Delphi7UP} + {$DEFINE Delphi8UP} + {$DEFINE Delphi9UP} + {$DEFINE Delphi10UP} + {$WARN UNSAFE_TYPE OFF} {Disable warning for unsafe types in Delphi 7} + {$DEFINE Has_Int64} + {$DEFINE HAS_TYPES} +{$ENDIF ver180} + +{$IFDEF ver185} + {$DEFINE Delphi} {Delphi 2007} + {$DEFINE Delphi32} + {$DEFINE Delphi4UP} + {$DEFINE Delphi5UP} + {$DEFINE Delphi6UP} + {$DEFINE Delphi7UP} + {$DEFINE Delphi8UP} + {$DEFINE Delphi9UP} + {$DEFINE Delphi10UP} + {$WARN UNSAFE_TYPE OFF} {Disable warning for unsafe types in Delphi 7} + {$DEFINE Has_Int64} + {$DEFINE HAS_TYPES} +{$ENDIF ver180} + +{$IFDEF UNIX} + {$ifdef VER140} // Kylix 1 & 2 + {$DEFINE KYLIX} + {$DEFINE KYLIX1UP} + {$DEFINE KYLIX2UP} + {$DEFINE HAS_TYPES} + {$endif} + + {$ifdef VER150} // Kylix 3 + {$DEFINE KYLIX} + {$DEFINE KYLIX1UP} + {$DEFINE KYLIX2UP} + {$DEFINE KYLIX3UP} + {$DEFINE HAS_TYPES} + {$endif} +{$ENDIF UNIX} + +{$IFDEF VirtualPascal} { Virtual Pascal 2.x } + {$DEFINE Delphi} { Use Delphi Syntax } + {$DEFINE VP2} + {&Delphi+} +{$ENDIF VirtualPascal} + +{$IFDEF Delphi} + {$DEFINE Windows} + {$DEFINE USE_STDCALL} + //{$ALIGN ON} +{$ENDIF Delphi} + +{$IFDEF FPC} + {$MODE Delphi} { use Delphi compatibility mode } + {$H+} + {$PACKRECORDS C} // Added for record + {$MACRO ON} // Added For OpenGL + {$DEFINE Delphi} + {$DEFINE UseAT} + {$UNDEF USE_STDCALL} + {$DEFINE OS_BigMem} + {$DEFINE NO_EXPORTS} + {$DEFINE Has_Int64} + {$DEFINE NOCRT} + {$IFDEF UNIX} + {$DEFINE fpc_unix} + {$ELSE} + {$DEFINE __OS_DOS__} + {$ENDIF} + {$IFDEF WIN32} + {$DEFINE UseWin} + {$ENDIF} + {$DEFINE HAS_TYPES} +{$ENDIF FPC} + +{$IFDEF Win16} + {$K+} {smart callbacks} +{$ENDIF Win16} + + {$IFDEF OS2} + {$UNDEF Windows} + {$DEFINE UseWin} + {$DEFINE OS_BigMem} + {$ENDIF OS2} + +{$IFDEF __GPC__} + {$UNDEF UseWin} + {$UNDEF USE_STDCALL} + {$DEFINE OS_BigMem} + {$DEFINE NO_EXPORTS} + {$DEFINE NOCRT} + {$DEFINE cdecl attribute(cdecl)} +{$ENDIF} + +{$IFDEF __TMT__} + {$DEFINE OS_BigMem} + {$DEFINE NO_EXPORTS} + {$DEFINE __OS_DOS__} + {$DEFINE UseAT} + {$IFNDEF MSDOS} + {$DEFINE USE_STDCALL} + {$ENDIF} + + {$IFDEF __WIN32__} + {$DEFINE Win32} + {$DEFINE UseWin} + {$DEFINE NOCRT} + {$DEFINE Win32} + {$IFNDEF __CON__} + {$DEFINE Windows} + {$ENDIF} + {$ENDIF} + + {$A+} // Word alignment data + {$OA+} // Objects and structures align +{$ENDIF} + +{$IFDEF Win32} + {$DEFINE OS_BigMem} +{$ELSE Win32} + {$IFDEF ver70} + {$DEFINE assembler} + {$ENDIF} { use 16-bit assembler! } +{$ENDIF Win32} + +{ ************************** dos/dos-like platforms **************} +{$IFDEF Windows} + {$DEFINE __OS_DOS__} + {$DEFINE UseWin} + {$DEFINE MSWINDOWS} +{$ENDIF Delphi} + +{$IFDEF OS2} + {$DEFINE __OS_DOS__} + {$DEFINE Can_Use_DLL} +{$ENDIF Delphi} + +{$IFDEF UseWin} + {$DEFINE Can_Use_DLL} +{$ENDIF} + +{$IFDEF Win16} + {$DEFINE Can_Use_DLL} +{$ENDIF} + +{$IFDEF BP_DPMI} + {$DEFINE Can_Use_DLL} +{$ENDIF} + +{$IFDEF USE_STDCALL} + {$IFNDEF __TMT__} + {$DEFINE BY_NAME} + {$ENDIF} +{$ENDIF} + +{$IFNDEF ver70} + {$UNDEF assembler} +{$ENDIF} + +{*************** define LITTLE ENDIAN platforms ********************} + + +{$IFDEF Delphi} +{$DEFINE IA32} +{$ENDIF} + +{$IFDEF KYLIX} +{$DEFINE IA32} +{$ENDIF} + +{$IFDEF FPC} +{$IFDEF FPC_LITTLE_ENDIAN} +{$DEFINE IA32} +{$ENDIF} +{$ENDIF} diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/libxmlparser.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/libxmlparser.pas index 0cdf44c7..63e7b7fb 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/libxmlparser.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/libxmlparser.pas @@ -1,2688 +1,2688 @@ -(**
-===============================================================================================
-Name : LibXmlParser
-===============================================================================================
-Project : All Projects
-===============================================================================================
-Subject : Progressive XML Parser for all types of XML Files
-===============================================================================================
-Author : Stefan Heymann
- Eschenweg 3
- 72076 Tübingen
- GERMANY
-
-E-Mail: stefan@destructor.de
-URL: www.destructor.de
-===============================================================================================
-Source, Legals ("Licence")
---------------------------
-The official site to get this parser is http://www.destructor.de/
-
-Usage and Distribution of this Source Code is ruled by the
-"Destructor.de Source code Licence" (DSL) which comes with this file or
-can be downloaded at http://www.destructor.de/
-
-IN SHORT: Usage and distribution of this source code is free.
- You use it completely on your own risk.
-
-Postcardware
-------------
-If you like this code, please send a postcard of your city to my above address.
-===============================================================================================
-!!! All parts of this code which are not finished or not conforming exactly to
- the XmlSpec are marked with three exclamation marks
-
--!- Parts where the parser may be able to detect errors in the document's syntax are
- marked with the dash-exlamation mark-dash sequence.
-===============================================================================================
-Terminology:
-------------
-- Start: Start of a buffer part
-- Final: End (last character) of a buffer part
-- DTD: Document Type Definition
-- DTDc: Document Type Declaration
-- XMLSpec: The current W3C XML Recommendation (version 1.0 as of 1998-02-10), Chapter No.
-- Cur*: Fields concerning the "Current" part passed back by the "Scan" method
-===============================================================================================
-Scanning the XML document
--------------------------
-- Create TXmlParser Instance MyXml := TXmlParser.Create;
-- Load XML Document MyXml.LoadFromFile (Filename);
-- Start Scanning MyXml.StartScan;
-- Scan Loop WHILE MyXml.Scan DO
-- Test for Part Type CASE MyXml.CurPartType OF
-- Handle Parts ... : ;;;
-- Handle Parts ... : ;;;
-- Handle Parts ... : ;;;
- END;
-- Destroy MyXml.Free;
-===============================================================================================
-Loading the XML document
-------------------------
-You can load the XML document from a file with the "LoadFromFile" method.
-It is beyond the scope of this parser to perform HTTP or FTP accesses. If you want your
-application to handle such requests (URLs), you can load the XML via HTTP or FTP or whatever
-protocol and hand over the data buffer using the "LoadFromBuffer" or "SetBuffer" method.
-"LoadFromBuffer" loads the internal buffer of TXmlParser with the given null-terminated
-string, thereby creating a copy of that buffer.
-"SetBuffer" just takes the pointer to another buffer, which means that the given
-buffer pointer must be valid while the document is accessed via TXmlParser.
-===============================================================================================
-Encodings:
-----------
-This XML parser kind of "understands" the following encodings:
-- UTF-8
-- ISO-8859-1
-- Windows-1252
-
-Any flavor of multi-byte characters (and this includes UTF-16) is not supported. Sorry.
-
-Every string which has to be passed to the application passes the virtual method
-"TranslateEncoding" which translates the string from the current encoding (stored in
-"CurEncoding") into the encoding the application wishes to receive.
-The "TranslateEncoding" method that is built into TXmlParser assumes that the application
-wants to receive Windows ANSI (Windows-1252, about the same as ISO-8859-1) and is able
-to convert UTF-8 and ISO-8859-1 encodings.
-For other source and target encodings, you will have to override "TranslateEncoding".
-===============================================================================================
-Buffer Handling
----------------
-- The document must be loaded completely into a piece of RAM
-- All character positions are referenced by PChar pointers
-- The TXmlParser instance can either "own" the buffer itself (then, FBufferSize is > 0)
- or reference the buffer of another instance or object (then, FBuffersize is 0 and
- FBuffer is not NIL)
-- The Property DocBuffer passes back a pointer to the first byte of the document. If there
- is no document stored (FBuffer is NIL), the DocBuffer returns a pointer to a NULL character.
-===============================================================================================
-Whitespace Handling
--------------------
-The TXmlParser property "PackSpaces" determines how Whitespace is returned in Text Content:
-While PackSpaces is true, all leading and trailing whitespace characters are trimmed of, all
-Whitespace is converted to Space #x20 characters and contiguous Whitespace characters are
-compressed to one.
-If the "Scan" method reports a ptContent part, the application can get the original text
-with all whitespace characters by extracting the characters from "CurStart" to "CurFinal".
-If the application detects an xml:space attribute, it can set "PackSpaces" accordingly or
-use CurStart/CurFinal.
-Please note that TXmlParser does _not_ normalize Line Breaks to single LineFeed characters
-as the XmlSpec requires (XmlSpec 2.11).
-The xml:space attribute is not handled by TXmlParser. This is on behalf of the application.
-===============================================================================================
-Non-XML-Conforming
-------------------
-TXmlParser does not conform 100 % exactly to the XmlSpec:
-- UTF-16 is not supported (XmlSpec 2.2)
- (Workaround: Convert UTF-16 to UTF-8 and hand the buffer over to TXmlParser)
-- As the parser only works with single byte strings, all Unicode characters > 255
- can currently not be handled correctly.
-- Line breaks are not normalized to single Linefeed #x0A characters (XmlSpec 2.11)
- (Workaround: The Application can access the text contents on its own [CurStart, CurFinal],
- thereby applying every normalization it wishes to)
-- The attribute value normalization does not work exactly as defined in the
- Second Edition of the XML 1.0 specification.
-- See also the code parts marked with three consecutive exclamation marks. These are
- parts which are not finished in the current code release.
-
-This list may be incomplete, so it may grow if I get to know any other points.
-As work on the parser proceeds, this list may also shrink.
-===============================================================================================
-Things Todo
------------
-- Introduce a new event/callback which is called when there is an unresolvable
- entity or character reference
-- Support Unicode
-- Use Streams instead of reading the whole XML into memory
-===============================================================================================
-Change History, Version numbers
--------------------------------
-The Date is given in ISO Year-Month-Day (YYYY-MM-DD) order.
-Versions are counted from 1.0.0 beginning with the version from 2000-03-16.
-Unreleased versions don't get a version number.
-
-Date Author Version Changes
------------------------------------------------------------------------------------------------
-2000-03-16 HeySt 1.0.0 Start
-2000-03-28 HeySt 1.0.1 Initial Publishing of TXmlParser on the destructor.de Web Site
-2000-03-30 HeySt 1.0.2 TXmlParser.AnalyzeCData: Call "TranslateEncoding" for CurContent
-2000-03-31 HeySt 1.0.3 Deleted the StrPosE function (was not needed anyway)
-2000-04-04 HeySt 1.0.4 TDtdElementRec modified: Start/Final for all Elements;
- Should be backwards compatible.
- AnalyzeDtdc: Set CurPartType to ptDtdc
-2000-04-23 HeySt 1.0.5 New class TObjectList. Eliminated reference to the Delphi 5
- "Contnrs" unit so LibXmlParser is Delphi 4 compatible.
-2000-07-03 HeySt 1.0.6 TNvpNode: Added Constructor
-2000-07-11 HeySt 1.0.7 Removed "Windows" from USES clause
- Added three-exclamation-mark comments for Utf8ToAnsi/AnsiToUtf8
- Added three-exclamation-mark comments for CHR function calls
-2000-07-23 HeySt 1.0.8 TXmlParser.Clear: CurAttr.Clear; EntityStack.Clear;
- (This was not a bug; just defensive programming)
-2000-07-29 HeySt 1.0.9 TNvpList: Added methods: Node(Index), Value(Index), Name(Index);
-2000-10-07 HeySt Introduced Conditional Defines
- Uses Contnrs unit and its TObjectList class again for
- Delphi 5 and newer versions
-2001-01-30 HeySt Introduced Version Numbering
- Made LoadFromFile and LoadFromBuffer BOOLEAN functions
- Introduced FileMode parameter for LoadFromFile
- BugFix: TAttrList.Analyze: Must add CWhitespace to ExtractName call
- Comments worked over
-2001-02-28 HeySt 1.0.10 Completely worked over and tested the UTF-8 functions
- Fixed a bug in TXmlParser.Scan which caused it to start over when it
- was called after the end of scanning, resulting in an endless loop
- TEntityStack is now a TObjectList instead of TList
-2001-07-03 HeySt 1.0.11 Updated Compiler Version IFDEFs for Kylix
-2001-07-11 HeySt 1.0.12 New TCustomXmlScanner component (taken over from LibXmlComps.pas)
-2001-07-14 HeySt 1.0.13 Bugfix TCustomXmlScanner.FOnTranslateEncoding
-2001-10-22 HeySt Don't clear CurName anymore when the parser finds a CDATA section.
-2001-12-03 HeySt 1.0.14 TObjectList.Clear: Make call to INHERITED method (fixes a memory leak)
-2001-12-05 HeySt 1.0.15 TObjectList.Clear: removed call to INHERITED method
- TObjectList.Destroy: Inserted SetCapacity call.
- Reduces need for frequent re-allocation of pointer buffer
- Dedicated to my father, Theodor Heymann
-2002-06-26 HeySt 1.0.16 TXmlParser.Scan: Fixed a bug with PIs whose name is beginning
- with 'xml'. Thanks to Uwe Kamm for submitting this bug.
- The CurEncoding property is now always in uppercase letters (the XML
- spec wants it to be treated case independently so when it's uppercase
- comparisons are faster)
-2002-03-04 HeySt 1.0.17 Included an IFDEF for Delphi 7 (VER150) and Kylix
- There is a new symbol HAS_CONTNRS_UNIT which is used now to
- distinguish between IDEs which come with the Contnrs unit and
- those that don't.
-*)
-
-UNIT libxmlparser;
-
-{$I jedi-sdl.inc}
-
-INTERFACE
-
-USES
- SysUtils, Classes,
- (*$IFDEF HAS_CONTNRS_UNIT *) // The Contnrs Unit was introduced in Delphi 5
- Contnrs,
- (*$ENDIF*)
- Math;
-
-CONST
- CVersion = '1.0.17'; // This variable will be updated for every release
- // (I hope, I won't forget to do it everytime ...)
-
-TYPE
- TPartType = // --- Document Part Types
- (ptNone, // Nothing
- ptXmlProlog, // XML Prolog XmlSpec 2.8 / 4.3.1
- ptComment, // Comment XmlSpec 2.5
- ptPI, // Processing Instruction XmlSpec 2.6
- ptDtdc, // Document Type Declaration XmlSpec 2.8
- ptStartTag, // Start Tag XmlSpec 3.1
- ptEmptyTag, // Empty-Element Tag XmlSpec 3.1
- ptEndTag, // End Tag XmlSpec 3.1
- ptContent, // Text Content between Tags
- ptCData); // CDATA Section XmlSpec 2.7
-
- TDtdElemType = // --- DTD Elements
- (deElement, // !ELEMENT declaration
- deAttList, // !ATTLIST declaration
- deEntity, // !ENTITY declaration
- deNotation, // !NOTATION declaration
- dePI, // PI in DTD
- deComment, // Comment in DTD
- deError); // Error found in the DTD
-
-TYPE
- TAttrList = CLASS;
- TEntityStack = CLASS;
- TNvpList = CLASS;
- TElemDef = CLASS;
- TElemList = CLASS;
- TEntityDef = CLASS;
- TNotationDef = CLASS;
-
- TDtdElementRec = RECORD // --- This Record is returned by the DTD parser callback function
- Start, Final : PChar; // Start/End of the Element's Declaration
- CASE ElementType : TDtdElemType OF // Type of the Element
- deElement, // <!ELEMENT>
- deAttList : (ElemDef : TElemDef); // <!ATTLIST>
- deEntity : (EntityDef : TEntityDef); // <!ENTITY>
- deNotation : (NotationDef : TNotationDef); // <!NOTATION>
- dePI : (Target : PChar; // <?PI ?>
- Content : PChar;
- AttrList : TAttrList);
- deError : (Pos : PChar); // Error
- // deComment : ((No additional fields here)); // <!-- Comment -->
- END;
-
- TXmlParser = CLASS // --- Internal Properties and Methods
- PROTECTED
- FBuffer : PChar; // NIL if there is no buffer available
- FBufferSize : INTEGER; // 0 if the buffer is not owned by the Document instance
- FSource : STRING; // Name of Source of document. Filename for Documents loaded with LoadFromFile
-
- FXmlVersion : STRING; // XML version from Document header. Default is '1.0'
- FEncoding : STRING; // Encoding from Document header. Default is 'UTF-8'
- FStandalone : BOOLEAN; // Standalone declaration from Document header. Default is 'yes'
- FRootName : STRING; // Name of the Root Element (= DTD name)
- FDtdcFinal : PChar; // Pointer to the '>' character terminating the DTD declaration
-
- FNormalize : BOOLEAN; // If true: Pack Whitespace and don't return empty contents
- EntityStack : TEntityStack; // Entity Stack for Parameter and General Entities
- FCurEncoding : STRING; // Current Encoding during parsing (always uppercase)
-
- PROCEDURE AnalyzeProlog; // Analyze XML Prolog or Text Declaration
- PROCEDURE AnalyzeComment (Start : PChar; VAR Final : PChar); // Analyze Comments
- PROCEDURE AnalyzePI (Start : PChar; VAR Final : PChar); // Analyze Processing Instructions (PI)
- PROCEDURE AnalyzeDtdc; // Analyze Document Type Declaration
- PROCEDURE AnalyzeDtdElements (Start : PChar; VAR Final : PChar); // Analyze DTD declarations
- PROCEDURE AnalyzeTag; // Analyze Start/End/Empty-Element Tags
- PROCEDURE AnalyzeCData; // Analyze CDATA Sections
- PROCEDURE AnalyzeText (VAR IsDone : BOOLEAN); // Analyze Text Content between Tags
- PROCEDURE AnalyzeElementDecl (Start : PChar; VAR Final : PChar);
- PROCEDURE AnalyzeAttListDecl (Start : PChar; VAR Final : PChar);
- PROCEDURE AnalyzeEntityDecl (Start : PChar; VAR Final : PChar);
- PROCEDURE AnalyzeNotationDecl (Start : PChar; VAR Final : PChar);
-
- PROCEDURE PushPE (VAR Start : PChar);
- PROCEDURE ReplaceCharacterEntities (VAR Str : STRING);
- PROCEDURE ReplaceParameterEntities (VAR Str : STRING);
- PROCEDURE ReplaceGeneralEntities (VAR Str : STRING);
-
- FUNCTION GetDocBuffer : PChar; // Returns FBuffer or a pointer to a NUL char if Buffer is empty
-
- PUBLIC // --- Document Properties
- PROPERTY XmlVersion : STRING READ FXmlVersion; // XML version from the Document Prolog
- PROPERTY Encoding : STRING READ FEncoding; // Document Encoding from Prolog
- PROPERTY Standalone : BOOLEAN READ FStandalone; // Standalone Declaration from Prolog
- PROPERTY RootName : STRING READ FRootName; // Name of the Root Element
- PROPERTY Normalize : BOOLEAN READ FNormalize WRITE FNormalize; // True if Content is to be normalized
- PROPERTY Source : STRING READ FSource; // Name of Document Source (Filename)
- PROPERTY DocBuffer : PChar READ GetDocBuffer; // Returns document buffer
- PUBLIC // --- DTD Objects
- Elements : TElemList; // Elements: List of TElemDef (contains Attribute Definitions)
- Entities : TNvpList; // General Entities: List of TEntityDef
- ParEntities : TNvpList; // Parameter Entities: List of TEntityDef
- Notations : TNvpList; // Notations: List of TNotationDef
- PUBLIC
- CONSTRUCTOR Create;
- DESTRUCTOR Destroy; OVERRIDE;
-
- // --- Document Handling
- FUNCTION LoadFromFile (Filename : STRING;
- FileMode : INTEGER = fmOpenRead OR fmShareDenyNone) : BOOLEAN;
- // Loads Document from given file
- FUNCTION LoadFromBuffer (Buffer : PChar) : BOOLEAN; // Loads Document from another buffer
- PROCEDURE SetBuffer (Buffer : PChar); // References another buffer
- PROCEDURE Clear; // Clear Document
-
- PUBLIC
- // --- Scanning through the document
- CurPartType : TPartType; // Current Type
- CurName : STRING; // Current Name
- CurContent : STRING; // Current Normalized Content
- CurStart : PChar; // Current First character
- CurFinal : PChar; // Current Last character
- CurAttr : TAttrList; // Current Attribute List
- PROPERTY CurEncoding : STRING READ FCurEncoding; // Current Encoding
- PROCEDURE StartScan;
- FUNCTION Scan : BOOLEAN;
-
- // --- Events / Callbacks
- FUNCTION LoadExternalEntity (SystemId, PublicId,
- Notation : STRING) : TXmlParser; VIRTUAL;
- FUNCTION TranslateEncoding (CONST Source : STRING) : STRING; VIRTUAL;
- PROCEDURE DtdElementFound (DtdElementRec : TDtdElementRec); VIRTUAL;
- END;
-
- TValueType = // --- Attribute Value Type
- (vtNormal, // Normal specified Attribute
- vtImplied, // #IMPLIED attribute value
- vtFixed, // #FIXED attribute value
- vtDefault); // Attribute value from default value in !ATTLIST declaration
-
- TAttrDefault = // --- Attribute Default Type
- (adDefault, // Normal default value
- adRequired, // #REQUIRED attribute
- adImplied, // #IMPLIED attribute
- adFixed); // #FIXED attribute
-
- TAttrType = // --- Type of attribute
- (atUnknown, // Unknown type
- atCData, // Character data only
- atID, // ID
- atIdRef, // ID Reference
- atIdRefs, // Several ID References, separated by Whitespace
- atEntity, // Name of an unparsed Entity
- atEntities, // Several unparsed Entity names, separated by Whitespace
- atNmToken, // Name Token
- atNmTokens, // Several Name Tokens, separated by Whitespace
- atNotation, // A selection of Notation names (Unparsed Entity)
- atEnumeration); // Enumeration
-
- TElemType = // --- Element content type
- (etEmpty, // Element is always empty
- etAny, // Element can have any mixture of PCDATA and any elements
- etChildren, // Element must contain only elements
- etMixed); // Mixed PCDATA and elements
-
- (*$IFDEF HAS_CONTNRS_UNIT *)
- TObjectList = Contnrs.TObjectList; // Re-Export this identifier
- (*$ELSE *)
- TObjectList = CLASS (TList)
- DESTRUCTOR Destroy; OVERRIDE;
- PROCEDURE Delete (Index : INTEGER);
- PROCEDURE Clear; OVERRIDE;
- END;
- (*$ENDIF *)
-
- TNvpNode = CLASS // Name-Value Pair Node
- Name : STRING;
- Value : STRING;
- CONSTRUCTOR Create (TheName : STRING = ''; TheValue : STRING = '');
- END;
-
- TNvpList = CLASS (TObjectList) // Name-Value Pair List
- PROCEDURE Add (Node : TNvpNode);
- FUNCTION Node (Name : STRING) : TNvpNode; OVERLOAD;
- FUNCTION Node (Index : INTEGER) : TNvpNode; OVERLOAD;
- FUNCTION Value (Name : STRING) : STRING; OVERLOAD;
- FUNCTION Value (Index : INTEGER) : STRING; OVERLOAD;
- FUNCTION Name (Index : INTEGER) : STRING;
- END;
-
- TAttr = CLASS (TNvpNode) // Attribute of a Start-Tag or Empty-Element-Tag
- ValueType : TValueType;
- AttrType : TAttrType;
- END;
-
- TAttrList = CLASS (TNvpList) // List of Attributes
- PROCEDURE Analyze (Start : PChar; VAR Final : PChar);
- END;
-
- TEntityStack = CLASS (TObjectList) // Stack where current position is stored before parsing entities
- PROTECTED
- Owner : TXmlParser;
- PUBLIC
- CONSTRUCTOR Create (TheOwner : TXmlParser);
- PROCEDURE Push (LastPos : PChar); OVERLOAD;
- PROCEDURE Push (Instance : TObject; LastPos : PChar); OVERLOAD;
- FUNCTION Pop : PChar; // Returns next char or NIL if EOF is reached. Frees Instance.
- END;
-
- TAttrDef = CLASS (TNvpNode) // Represents a <!ATTLIST Definition. "Value" is the default value
- TypeDef : STRING; // Type definition from the DTD
- Notations : STRING; // Notation List, separated by pipe symbols '|'
- AttrType : TAttrType; // Attribute Type
- DefaultType : TAttrDefault; // Default Type
- END;
-
- TElemDef = CLASS (TNvpList) // Represents a <!ELEMENT Definition. Is a list of TAttrDef-Nodes
- Name : STRING; // Element name
- ElemType : TElemType; // Element type
- Definition : STRING; // Element definition from DTD
- END;
-
- TElemList = CLASS (TObjectList) // List of TElemDef nodes
- FUNCTION Node (Name : STRING) : TElemDef;
- PROCEDURE Add (Node : TElemDef);
- END;
-
- TEntityDef = CLASS (TNvpNode) // Represents a <!ENTITY Definition.
- SystemId : STRING;
- PublicId : STRING;
- NotationName : STRING;
- END;
-
- TNotationDef = CLASS (TNvpNode) // Represents a <!NOTATION Definition. Value is the System ID
- PublicId : STRING;
- END;
-
- TCharset = SET OF CHAR;
-
-
-CONST
- CWhitespace = [#32, #9, #13, #10]; // Whitespace characters (XmlSpec 2.3)
- CLetter = [#$41..#$5A, #$61..#$7A, #$C0..#$D6, #$D8..#$F6, #$F8..#$FF];
- CDigit = [#$30..#$39];
- CNameChar = CLetter + CDigit + ['.', '-', '_', ':', #$B7];
- CNameStart = CLetter + ['_', ':'];
- CQuoteChar = ['"', ''''];
- CPubidChar = [#32, ^M, ^J, #9, 'a'..'z', 'A'..'Z', '0'..'9',
- '-', '''', '(', ')', '+', ',', '.', '/', ':',
- '=', '?', ';', '!', '*', '#', '@', '$', '_', '%'];
-
- CDStart = '<![CDATA[';
- CDEnd = ']]>';
-
- // --- Name Constants for the above enumeration types
- CPartType_Name : ARRAY [TPartType] OF STRING =
- ('', 'XML Prolog', 'Comment', 'PI',
- 'DTD Declaration', 'Start Tag', 'Empty Tag', 'End Tag',
- 'Text', 'CDATA');
- CValueType_Name : ARRAY [TValueType] OF STRING = ('Normal', 'Implied', 'Fixed', 'Default');
- CAttrDefault_Name : ARRAY [TAttrDefault] OF STRING = ('Default', 'Required', 'Implied', 'Fixed');
- CElemType_Name : ARRAY [TElemType] OF STRING = ('Empty', 'Any', 'Childs only', 'Mixed');
- CAttrType_Name : ARRAY [TAttrType] OF STRING = ('Unknown', 'CDATA',
- 'ID', 'IDREF', 'IDREFS',
- 'ENTITY', 'ENTITIES',
- 'NMTOKEN', 'NMTOKENS',
- 'Notation', 'Enumeration');
-
-FUNCTION ConvertWs (Source: STRING; PackWs: BOOLEAN) : STRING; // Convert WS to spaces #x20
-PROCEDURE SetStringSF (VAR S : STRING; BufferStart, BufferFinal : PChar); // SetString by Start/Final of buffer
-FUNCTION StrSFPas (Start, Finish : PChar) : STRING; // Convert buffer part to Pascal string
-FUNCTION TrimWs (Source : STRING) : STRING; // Trim Whitespace
-
-FUNCTION AnsiToUtf8 (Source : ANSISTRING) : STRING; // Convert Win-1252 to UTF-8
-FUNCTION Utf8ToAnsi (Source : STRING; UnknownChar : CHAR = '¿') : ANSISTRING; // Convert UTF-8 to Win-1252
-
-
-(*
-===============================================================================================
-TCustomXmlScanner event based component wrapper for TXmlParser
-===============================================================================================
-*)
-
-TYPE
- TCustomXmlScanner = CLASS;
- TXmlPrologEvent = PROCEDURE (Sender : TObject; XmlVersion, Encoding: STRING; Standalone : BOOLEAN) OF OBJECT;
- TCommentEvent = PROCEDURE (Sender : TObject; Comment : STRING) OF OBJECT;
- TPIEvent = PROCEDURE (Sender : TObject; Target, Content: STRING; Attributes : TAttrList) OF OBJECT;
- TDtdEvent = PROCEDURE (Sender : TObject; RootElementName : STRING) OF OBJECT;
- TStartTagEvent = PROCEDURE (Sender : TObject; TagName : STRING; Attributes : TAttrList) OF OBJECT;
- TEndTagEvent = PROCEDURE (Sender : TObject; TagName : STRING) OF OBJECT;
- TContentEvent = PROCEDURE (Sender : TObject; Content : STRING) OF OBJECT;
- TElementEvent = PROCEDURE (Sender : TObject; ElemDef : TElemDef) OF OBJECT;
- TEntityEvent = PROCEDURE (Sender : TObject; EntityDef : TEntityDef) OF OBJECT;
- TNotationEvent = PROCEDURE (Sender : TObject; NotationDef : TNotationDef) OF OBJECT;
- TErrorEvent = PROCEDURE (Sender : TObject; ErrorPos : PChar) OF OBJECT;
- TExternalEvent = PROCEDURE (Sender : TObject; SystemId, PublicId, NotationId : STRING;
- VAR Result : TXmlParser) OF OBJECT;
- TEncodingEvent = FUNCTION (Sender : TObject; CurrentEncoding, Source : STRING) : STRING OF OBJECT;
-
-
- TCustomXmlScanner = CLASS (TComponent)
- PROTECTED
- FXmlParser : TXmlParser;
- FOnXmlProlog : TXmlPrologEvent;
- FOnComment : TCommentEvent;
- FOnPI : TPIEvent;
- FOnDtdRead : TDtdEvent;
- FOnStartTag : TStartTagEvent;
- FOnEmptyTag : TStartTagEvent;
- FOnEndTag : TEndTagEvent;
- FOnContent : TContentEvent;
- FOnCData : TContentEvent;
- FOnElement : TElementEvent;
- FOnAttList : TElementEvent;
- FOnEntity : TEntityEvent;
- FOnNotation : TNotationEvent;
- FOnDtdError : TErrorEvent;
- FOnLoadExternal : TExternalEvent;
- FOnTranslateEncoding : TEncodingEvent;
- FStopParser : BOOLEAN;
- FUNCTION GetNormalize : BOOLEAN;
- PROCEDURE SetNormalize (Value : BOOLEAN);
-
- PROCEDURE WhenXmlProlog(XmlVersion, Encoding: STRING; Standalone : BOOLEAN); VIRTUAL;
- PROCEDURE WhenComment (Comment : STRING); VIRTUAL;
- PROCEDURE WhenPI (Target, Content: STRING; Attributes : TAttrList); VIRTUAL;
- PROCEDURE WhenDtdRead (RootElementName : STRING); VIRTUAL;
- PROCEDURE WhenStartTag (TagName : STRING; Attributes : TAttrList); VIRTUAL;
- PROCEDURE WhenEmptyTag (TagName : STRING; Attributes : TAttrList); VIRTUAL;
- PROCEDURE WhenEndTag (TagName : STRING); VIRTUAL;
- PROCEDURE WhenContent (Content : STRING); VIRTUAL;
- PROCEDURE WhenCData (Content : STRING); VIRTUAL;
- PROCEDURE WhenElement (ElemDef : TElemDef); VIRTUAL;
- PROCEDURE WhenAttList (ElemDef : TElemDef); VIRTUAL;
- PROCEDURE WhenEntity (EntityDef : TEntityDef); VIRTUAL;
- PROCEDURE WhenNotation (NotationDef : TNotationDef); VIRTUAL;
- PROCEDURE WhenDtdError (ErrorPos : PChar); VIRTUAL;
-
- PUBLIC
- CONSTRUCTOR Create (AOwner: TComponent); OVERRIDE;
- DESTRUCTOR Destroy; OVERRIDE;
-
- PROCEDURE LoadFromFile (Filename : TFilename); // Load XML Document from file
- PROCEDURE LoadFromBuffer (Buffer : PChar); // Load XML Document from buffer
- PROCEDURE SetBuffer (Buffer : PChar); // Refer to Buffer
- FUNCTION GetFilename : TFilename;
-
- PROCEDURE Execute; // Perform scanning
-
- PROTECTED
- PROPERTY XmlParser : TXmlParser READ FXmlParser;
- PROPERTY StopParser : BOOLEAN READ FStopParser WRITE FStopParser;
- PROPERTY Filename : TFilename READ GetFilename WRITE LoadFromFile;
- PROPERTY Normalize : BOOLEAN READ GetNormalize WRITE SetNormalize;
- PROPERTY OnXmlProlog : TXmlPrologEvent READ FOnXmlProlog WRITE FOnXmlProlog;
- PROPERTY OnComment : TCommentEvent READ FOnComment WRITE FOnComment;
- PROPERTY OnPI : TPIEvent READ FOnPI WRITE FOnPI;
- PROPERTY OnDtdRead : TDtdEvent READ FOnDtdRead WRITE FOnDtdRead;
- PROPERTY OnStartTag : TStartTagEvent READ FOnStartTag WRITE FOnStartTag;
- PROPERTY OnEmptyTag : TStartTagEvent READ FOnEmptyTag WRITE FOnEmptyTag;
- PROPERTY OnEndTag : TEndTagEvent READ FOnEndTag WRITE FOnEndTag;
- PROPERTY OnContent : TContentEvent READ FOnContent WRITE FOnContent;
- PROPERTY OnCData : TContentEvent READ FOnCData WRITE FOnCData;
- PROPERTY OnElement : TElementEvent READ FOnElement WRITE FOnElement;
- PROPERTY OnAttList : TElementEvent READ FOnAttList WRITE FOnAttList;
- PROPERTY OnEntity : TEntityEvent READ FOnEntity WRITE FOnEntity;
- PROPERTY OnNotation : TNotationEvent READ FOnNotation WRITE FOnNotation;
- PROPERTY OnDtdError : TErrorEvent READ FOnDtdError WRITE FOnDtdError;
- PROPERTY OnLoadExternal : TExternalEvent READ FOnLoadExternal WRITE FOnLoadExternal;
- PROPERTY OnTranslateEncoding : TEncodingEvent READ FOnTranslateEncoding WRITE FOnTranslateEncoding;
- END;
-
-(*
-===============================================================================================
-IMPLEMENTATION
-===============================================================================================
-*)
-
-IMPLEMENTATION
-
-
-(*
-===============================================================================================
-Unicode and UTF-8 stuff
-===============================================================================================
-*)
-
-CONST
- // --- Character Translation Table for Unicode <-> Win-1252
- WIN1252_UNICODE : ARRAY [$00..$FF] OF WORD = (
- $0000, $0001, $0002, $0003, $0004, $0005, $0006, $0007, $0008, $0009,
- $000A, $000B, $000C, $000D, $000E, $000F, $0010, $0011, $0012, $0013,
- $0014, $0015, $0016, $0017, $0018, $0019, $001A, $001B, $001C, $001D,
- $001E, $001F, $0020, $0021, $0022, $0023, $0024, $0025, $0026, $0027,
- $0028, $0029, $002A, $002B, $002C, $002D, $002E, $002F, $0030, $0031,
- $0032, $0033, $0034, $0035, $0036, $0037, $0038, $0039, $003A, $003B,
- $003C, $003D, $003E, $003F, $0040, $0041, $0042, $0043, $0044, $0045,
- $0046, $0047, $0048, $0049, $004A, $004B, $004C, $004D, $004E, $004F,
- $0050, $0051, $0052, $0053, $0054, $0055, $0056, $0057, $0058, $0059,
- $005A, $005B, $005C, $005D, $005E, $005F, $0060, $0061, $0062, $0063,
- $0064, $0065, $0066, $0067, $0068, $0069, $006A, $006B, $006C, $006D,
- $006E, $006F, $0070, $0071, $0072, $0073, $0074, $0075, $0076, $0077,
- $0078, $0079, $007A, $007B, $007C, $007D, $007E, $007F,
-
- $20AC, $0081, $201A, $0192, $201E, $2026, $2020, $2021, $02C6, $2030,
- $0160, $2039, $0152, $008D, $017D, $008F, $0090, $2018, $2019, $201C,
- $201D, $2022, $2013, $2014, $02DC, $2122, $0161, $203A, $0153, $009D,
- $017E, $0178, $00A0, $00A1, $00A2, $00A3, $00A4, $00A5, $00A6, $00A7,
- $00A8, $00A9, $00AA, $00AB, $00AC, $00AD, $00AE, $00AF, $00B0, $00B1,
- $00B2, $00B3, $00B4, $00B5, $00B6, $00B7, $00B8, $00B9, $00BA, $00BB,
- $00BC, $00BD, $00BE, $00BF, $00C0, $00C1, $00C2, $00C3, $00C4, $00C5,
- $00C6, $00C7, $00C8, $00C9, $00CA, $00CB, $00CC, $00CD, $00CE, $00CF,
- $00D0, $00D1, $00D2, $00D3, $00D4, $00D5, $00D6, $00D7, $00D8, $00D9,
- $00DA, $00DB, $00DC, $00DD, $00DE, $00DF, $00E0, $00E1, $00E2, $00E3,
- $00E4, $00E5, $00E6, $00E7, $00E8, $00E9, $00EA, $00EB, $00EC, $00ED,
- $00EE, $00EF, $00F0, $00F1, $00F2, $00F3, $00F4, $00F5, $00F6, $00F7,
- $00F8, $00F9, $00FA, $00FB, $00FC, $00FD, $00FE, $00FF);
-
-(* UTF-8 (somewhat simplified)
- -----
- Character Range Byte sequence
- --------------- -------------------------- (x=Bits from original character)
- $0000..$007F 0xxxxxxx
- $0080..$07FF 110xxxxx 10xxxxxx
- $8000..$FFFF 1110xxxx 10xxxxxx 10xxxxxx
-
- Example
- --------
- Transforming the Unicode character U+00E4 LATIN SMALL LETTER A WITH DIAERESIS ("ä"):
-
- ISO-8859-1, Decimal 228
- Win1252, Hex $E4
- ANSI Bin 1110 0100
- abcd efgh
-
- UTF-8 Binary 1100xxab 10cdefgh
- Binary 11000011 10100100
- Hex $C3 $A4
- Decimal 195 164
- ANSI Ã ¤ *)
-
-
-FUNCTION AnsiToUtf8 (Source : ANSISTRING) : STRING;
- (* Converts the given Windows ANSI (Win1252) String to UTF-8. *)
-VAR
- I : INTEGER; // Loop counter
- U : WORD; // Current Unicode value
- Len : INTEGER; // Current real length of "Result" string
-BEGIN
- SetLength (Result, Length (Source) * 3); // Worst case
- Len := 0;
- FOR I := 1 TO Length (Source) DO BEGIN
- U := WIN1252_UNICODE [ORD (Source [I])];
- CASE U OF
- $0000..$007F : BEGIN
- INC (Len);
- Result [Len] := CHR (U);
- END;
- $0080..$07FF : BEGIN
- INC (Len);
- Result [Len] := CHR ($C0 OR (U SHR 6));
- INC (Len);
- Result [Len] := CHR ($80 OR (U AND $3F));
- END;
- $0800..$FFFF : BEGIN
- INC (Len);
- Result [Len] := CHR ($E0 OR (U SHR 12));
- INC (Len);
- Result [Len] := CHR ($80 OR ((U SHR 6) AND $3F));
- INC (Len);
- Result [Len] := CHR ($80 OR (U AND $3F));
- END;
- END;
- END;
- SetLength (Result, Len);
-END;
-
-
-FUNCTION Utf8ToAnsi (Source : STRING; UnknownChar : CHAR = '¿') : ANSISTRING;
- (* Converts the given UTF-8 String to Windows ANSI (Win-1252).
- If a character can not be converted, the "UnknownChar" is inserted. *)
-VAR
- SourceLen : INTEGER; // Length of Source string
- I, K : INTEGER;
- A : BYTE; // Current ANSI character value
- U : WORD;
- Ch : CHAR; // Dest char
- Len : INTEGER; // Current real length of "Result" string
-BEGIN
- SourceLen := Length (Source);
- SetLength (Result, SourceLen); // Enough room to live
- Len := 0;
- I := 1;
- WHILE I <= SourceLen DO BEGIN
- A := ORD (Source [I]);
- IF A < $80 THEN BEGIN // Range $0000..$007F
- INC (Len);
- Result [Len] := Source [I];
- INC (I);
- END
- ELSE BEGIN // Determine U, Inc I
- IF (A AND $E0 = $C0) AND (I < SourceLen) THEN BEGIN // Range $0080..$07FF
- U := (WORD (A AND $1F) SHL 6) OR (ORD (Source [I+1]) AND $3F);
- INC (I, 2);
- END
- ELSE IF (A AND $F0 = $E0) AND (I < SourceLen-1) THEN BEGIN // Range $0800..$FFFF
- U := (WORD (A AND $0F) SHL 12) OR
- (WORD (ORD (Source [I+1]) AND $3F) SHL 6) OR
- ( ORD (Source [I+2]) AND $3F);
- INC (I, 3);
- END
- ELSE BEGIN // Unknown/unsupported
- INC (I);
- FOR K := 7 DOWNTO 0 DO
- IF A AND (1 SHL K) = 0 THEN BEGIN
- INC (I, (A SHR (K+1))-1);
- BREAK;
- END;
- U := WIN1252_UNICODE [ORD (UnknownChar)];
- END;
- Ch := UnknownChar; // Retrieve ANSI char
- FOR A := $00 TO $FF DO
- IF WIN1252_UNICODE [A] = U THEN BEGIN
- Ch := CHR (A);
- BREAK;
- END;
- INC (Len);
- Result [Len] := Ch;
- END;
- END;
- SetLength (Result, Len);
-END;
-
-
-(*
-===============================================================================================
-"Special" Helper Functions
-
-Don't ask me why. But including these functions makes the parser *DRAMATICALLY* faster
-on my K6-233 machine. You can test it yourself just by commenting them out.
-They do exactly the same as the Assembler routines defined in SysUtils.
-(This is where you can see how great the Delphi compiler really is. The compiled code is
-faster than hand-coded assembler!)
-===============================================================================================
---> Just move this line below the StrScan function --> *)
-
-
-FUNCTION StrPos (CONST Str, SearchStr : PChar) : PChar;
- // Same functionality as SysUtils.StrPos
-VAR
- First : CHAR;
- Len : INTEGER;
-BEGIN
- First := SearchStr^;
- Len := StrLen (SearchStr);
- Result := Str;
- REPEAT
- IF Result^ = First THEN
- IF StrLComp (Result, SearchStr, Len) = 0 THEN BREAK;
- IF Result^ = #0 THEN BEGIN
- Result := NIL;
- BREAK;
- END;
- INC (Result);
- UNTIL FALSE;
-END;
-
-
-FUNCTION StrScan (CONST Start : PChar; CONST Ch : CHAR) : PChar;
- // Same functionality as SysUtils.StrScan
-BEGIN
- Result := Start;
- WHILE Result^ <> Ch DO BEGIN
- IF Result^ = #0 THEN BEGIN
- Result := NIL;
- EXIT;
- END;
- INC (Result);
- END;
-END;
-
-
-(*
-===============================================================================================
-Helper Functions
-===============================================================================================
-*)
-
-FUNCTION DelChars (Source : STRING; CharsToDelete : TCharset) : STRING;
- // Delete all "CharsToDelete" from the string
-VAR
- I : INTEGER;
-BEGIN
- Result := Source;
- FOR I := Length (Result) DOWNTO 1 DO
- IF Result [I] IN CharsToDelete THEN
- Delete (Result, I, 1);
-END;
-
-
-FUNCTION TrimWs (Source : STRING) : STRING;
- // Trimms off Whitespace characters from both ends of the string
-VAR
- I : INTEGER;
-BEGIN
- // --- Trim Left
- I := 1;
- WHILE (I <= Length (Source)) AND (Source [I] IN CWhitespace) DO
- INC (I);
- Result := Copy (Source, I, MaxInt);
-
- // --- Trim Right
- I := Length (Result);
- WHILE (I > 1) AND (Result [I] IN CWhitespace) DO
- DEC (I);
- Delete (Result, I+1, Length (Result)-I);
-END;
-
-
-FUNCTION ConvertWs (Source: STRING; PackWs: BOOLEAN) : STRING;
- // Converts all Whitespace characters to the Space #x20 character
- // If "PackWs" is true, contiguous Whitespace characters are packed to one
-VAR
- I : INTEGER;
-BEGIN
- Result := Source;
- FOR I := Length (Result) DOWNTO 1 DO
- IF (Result [I] IN CWhitespace) THEN
- IF PackWs AND (I > 1) AND (Result [I-1] IN CWhitespace)
- THEN Delete (Result, I, 1)
- ELSE Result [I] := #32;
-END;
-
-
-PROCEDURE SetStringSF (VAR S : STRING; BufferStart, BufferFinal : PChar);
-BEGIN
- SetString (S, BufferStart, BufferFinal-BufferStart+1);
-END;
-
-
-FUNCTION StrLPas (Start : PChar; Len : INTEGER) : STRING;
-BEGIN
- SetString (Result, Start, Len);
-END;
-
-
-FUNCTION StrSFPas (Start, Finish : PChar) : STRING;
-BEGIN
- SetString (Result, Start, Finish-Start+1);
-END;
-
-
-FUNCTION StrScanE (CONST Source : PChar; CONST CharToScanFor : CHAR) : PChar;
- // If "CharToScanFor" is not found, StrScanE returns the last char of the
- // buffer instead of NIL
-BEGIN
- Result := StrScan (Source, CharToScanFor);
- IF Result = NIL THEN
- Result := StrEnd (Source)-1;
-END;
-
-
-PROCEDURE ExtractName (Start : PChar; Terminators : TCharset; VAR Final : PChar);
- (* Extracts the complete Name beginning at "Start".
- It is assumed that the name is contained in Markup, so the '>' character is
- always a Termination.
- Start: IN Pointer to first char of name. Is always considered to be valid
- Terminators: IN Characters which terminate the name
- Final: OUT Pointer to last char of name *)
-BEGIN
- Final := Start+1;
- Include (Terminators, #0);
- Include (Terminators, '>');
- WHILE NOT (Final^ IN Terminators) DO
- INC (Final);
- DEC (Final);
-END;
-
-
-PROCEDURE ExtractQuote (Start : PChar; VAR Content : STRING; VAR Final : PChar);
- (* Extract a string which is contained in single or double Quotes.
- Start: IN Pointer to opening quote
- Content: OUT The quoted string
- Final: OUT Pointer to closing quote *)
-BEGIN
- Final := StrScan (Start+1, Start^);
- IF Final = NIL THEN BEGIN
- Final := StrEnd (Start+1)-1;
- SetString (Content, Start+1, Final-Start);
- END
- ELSE
- SetString (Content, Start+1, Final-1-Start);
-END;
-
-
-(*
-===============================================================================================
-TEntityStackNode
-This Node is pushed to the "Entity Stack" whenever the parser parses entity replacement text.
-The "Instance" field holds the Instance pointer of an External Entity buffer. When it is
-popped, the Instance is freed.
-The "Encoding" field holds the name of the Encoding. External Parsed Entities may have
-another encoding as the document entity (XmlSpec 4.3.3). So when there is an "<?xml" PI
-found in the stream (= Text Declaration at the beginning of external parsed entities), the
-Encoding found there is used for the External Entity (is assigned to TXmlParser.CurEncoding)
-Default Encoding is for the Document Entity is UTF-8. It is assumed that External Entities
-have the same Encoding as the Document Entity, unless they carry a Text Declaration.
-===============================================================================================
-*)
-
-TYPE
- TEntityStackNode = CLASS
- Instance : TObject;
- Encoding : STRING;
- LastPos : PChar;
- END;
-
-(*
-===============================================================================================
-TEntityStack
-For nesting of Entities.
-When there is an entity reference found in the data stream, the corresponding entity
-definition is searched and the current position is pushed to this stack.
-From then on, the program scans the entitiy replacement text as if it were normal content.
-When the parser reaches the end of an entity, the current position is popped off the
-stack again.
-===============================================================================================
-*)
-
-CONSTRUCTOR TEntityStack.Create (TheOwner : TXmlParser);
-BEGIN
- INHERITED Create;
- Owner := TheOwner;
-END;
-
-
-PROCEDURE TEntityStack.Push (LastPos : PChar);
-BEGIN
- Push (NIL, LastPos);
-END;
-
-
-PROCEDURE TEntityStack.Push (Instance : TObject; LastPos : PChar);
-VAR
- ESN : TEntityStackNode;
-BEGIN
- ESN := TEntityStackNode.Create;
- ESN.Instance := Instance;
- ESN.Encoding := Owner.FCurEncoding; // Save current Encoding
- ESN.LastPos := LastPos;
- Add (ESN);
-END;
-
-
-FUNCTION TEntityStack.Pop : PChar;
-VAR
- ESN : TEntityStackNode;
-BEGIN
- IF Count > 0 THEN BEGIN
- ESN := TEntityStackNode (Items [Count-1]);
- Result := ESN.LastPos;
- IF ESN.Instance <> NIL THEN
- ESN.Instance.Free;
- IF ESN.Encoding <> '' THEN
- Owner.FCurEncoding := ESN.Encoding; // Restore current Encoding
- Delete (Count-1);
- END
- ELSE
- Result := NIL;
-END;
-
-
-(*
-===============================================================================================
-TExternalID
------------
-XmlSpec 4.2.2: ExternalID ::= 'SYSTEM' S SystemLiteral |
- 'PUBLIC' S PubidLiteral S SystemLiteral
-XmlSpec 4.7: PublicID ::= 'PUBLIC' S PubidLiteral
-SystemLiteral and PubidLiteral are quoted
-===============================================================================================
-*)
-
-TYPE
- TExternalID = CLASS
- PublicId : STRING;
- SystemId : STRING;
- Final : PChar;
- CONSTRUCTOR Create (Start : PChar);
- END;
-
-CONSTRUCTOR TExternalID.Create (Start : PChar);
-BEGIN
- INHERITED Create;
- Final := Start;
- IF StrLComp (Start, 'SYSTEM', 6) = 0 THEN BEGIN
- WHILE NOT (Final^ IN (CQuoteChar + [#0, '>', '['])) DO INC (Final);
- IF NOT (Final^ IN CQuoteChar) THEN EXIT;
- ExtractQuote (Final, SystemID, Final);
- END
- ELSE IF StrLComp (Start, 'PUBLIC', 6) = 0 THEN BEGIN
- WHILE NOT (Final^ IN (CQuoteChar + [#0, '>', '['])) DO INC (Final);
- IF NOT (Final^ IN CQuoteChar) THEN EXIT;
- ExtractQuote (Final, PublicID, Final);
- INC (Final);
- WHILE NOT (Final^ IN (CQuoteChar + [#0, '>', '['])) DO INC (Final);
- IF NOT (Final^ IN CQuoteChar) THEN EXIT;
- ExtractQuote (Final, SystemID, Final);
- END;
-END;
-
-
-(*
-===============================================================================================
-TXmlParser
-===============================================================================================
-*)
-
-CONSTRUCTOR TXmlParser.Create;
-BEGIN
- INHERITED Create;
- FBuffer := NIL;
- FBufferSize := 0;
- Elements := TElemList.Create;
- Entities := TNvpList.Create;
- ParEntities := TNvpList.Create;
- Notations := TNvpList.Create;
- CurAttr := TAttrList.Create;
- EntityStack := TEntityStack.Create (Self);
- Clear;
-END;
-
-
-DESTRUCTOR TXmlParser.Destroy;
-BEGIN
- Clear;
- Elements.Free;
- Entities.Free;
- ParEntities.Free;
- Notations.Free;
- CurAttr.Free;
- EntityStack.Free;
- INHERITED Destroy;
-END;
-
-
-PROCEDURE TXmlParser.Clear;
- // Free Buffer and clear all object attributes
-BEGIN
- IF (FBufferSize > 0) AND (FBuffer <> NIL) THEN
- FreeMem (FBuffer);
- FBuffer := NIL;
- FBufferSize := 0;
- FSource := '';
- FXmlVersion := '';
- FEncoding := '';
- FStandalone := FALSE;
- FRootName := '';
- FDtdcFinal := NIL;
- FNormalize := TRUE;
- Elements.Clear;
- Entities.Clear;
- ParEntities.Clear;
- Notations.Clear;
- CurAttr.Clear;
- EntityStack.Clear;
-END;
-
-
-FUNCTION TXmlParser.LoadFromFile (Filename : STRING; FileMode : INTEGER = fmOpenRead OR fmShareDenyNone) : BOOLEAN;
- // Loads Document from given file
- // Returns TRUE if successful
-VAR
- f : FILE;
- ReadIn : INTEGER;
- OldFileMode : INTEGER;
-BEGIN
- Result := FALSE;
- Clear;
-
- // --- Open File
- OldFileMode := SYSTEM.FileMode;
- TRY
- SYSTEM.FileMode := FileMode;
- TRY
- AssignFile (f, Filename);
- Reset (f, 1);
- EXCEPT
- EXIT;
- END;
-
- TRY
- // --- Allocate Memory
- TRY
- FBufferSize := Filesize (f) + 1;
- GetMem (FBuffer, FBufferSize);
- EXCEPT
- Clear;
- EXIT;
- END;
-
- // --- Read File
- TRY
- BlockRead (f, FBuffer^, FBufferSize, ReadIn);
- (FBuffer+ReadIn)^ := #0; // NULL termination
- EXCEPT
- Clear;
- EXIT;
- END;
- FINALLY
- CloseFile (f);
- END;
-
- FSource := Filename;
- Result := TRUE;
-
- FINALLY
- SYSTEM.FileMode := OldFileMode;
- END;
-END;
-
-
-FUNCTION TXmlParser.LoadFromBuffer (Buffer : PChar) : BOOLEAN;
- // Loads Document from another buffer
- // Returns TRUE if successful
- // The "Source" property becomes '<MEM>' if successful
-BEGIN
- Result := FALSE;
- Clear;
- FBufferSize := StrLen (Buffer) + 1;
- TRY
- GetMem (FBuffer, FBufferSize);
- EXCEPT
- Clear;
- EXIT;
- END;
- StrCopy (FBuffer, Buffer);
- FSource := '<MEM>';
- Result := TRUE;
-END;
-
-
-PROCEDURE TXmlParser.SetBuffer (Buffer : PChar); // References another buffer
-BEGIN
- Clear;
- FBuffer := Buffer;
- FBufferSize := 0;
- FSource := '<REFERENCE>';
-END;
-
-
-//-----------------------------------------------------------------------------------------------
-// Scanning through the document
-//-----------------------------------------------------------------------------------------------
-
-PROCEDURE TXmlParser.StartScan;
-BEGIN
- CurPartType := ptNone;
- CurName := '';
- CurContent := '';
- CurStart := NIL;
- CurFinal := NIL;
- CurAttr.Clear;
- EntityStack.Clear;
-END;
-
-
-FUNCTION TXmlParser.Scan : BOOLEAN;
- // Scans the next Part
- // Returns TRUE if a part could be found, FALSE if there is no part any more
- //
- // "IsDone" can be set to FALSE by AnalyzeText in order to go to the next part
- // if there is no Content due to normalization
-VAR
- IsDone : BOOLEAN;
-BEGIN
- REPEAT
- IsDone := TRUE;
-
- // --- Start of next Part
- IF CurStart = NIL
- THEN CurStart := DocBuffer
- ELSE CurStart := CurFinal+1;
- CurFinal := CurStart;
-
- // --- End of Document of Pop off a new part from the Entity stack?
- IF CurStart^ = #0 THEN
- CurStart := EntityStack.Pop;
-
- // --- No Document or End Of Document: Terminate Scan
- IF (CurStart = NIL) OR (CurStart^ = #0) THEN BEGIN
- CurStart := StrEnd (DocBuffer);
- CurFinal := CurStart-1;
- EntityStack.Clear;
- Result := FALSE;
- EXIT;
- END;
-
- IF (StrLComp (CurStart, '<?xml', 5) = 0) AND
- ((CurStart+5)^ IN CWhitespace) THEN AnalyzeProlog // XML Declaration, Text Declaration
- ELSE IF StrLComp (CurStart, '<?', 2) = 0 THEN AnalyzePI (CurStart, CurFinal) // PI
- ELSE IF StrLComp (CurStart, '<!--', 4) = 0 THEN AnalyzeComment (CurStart, CurFinal) // Comment
- ELSE IF StrLComp (CurStart, '<!DOCTYPE', 9) = 0 THEN AnalyzeDtdc // DTDc
- ELSE IF StrLComp (CurStart, CDStart, Length (CDStart)) = 0 THEN AnalyzeCdata // CDATA Section
- ELSE IF StrLComp (CurStart, '<', 1) = 0 THEN AnalyzeTag // Start-Tag, End-Tag, Empty-Element-Tag
- ELSE AnalyzeText (IsDone); // Text Content
- UNTIL IsDone;
- Result := TRUE;
-END;
-
-
-PROCEDURE TXmlParser.AnalyzeProlog;
- // Analyze XML Prolog or Text Declaration
-VAR
- F : PChar;
-BEGIN
- CurAttr.Analyze (CurStart+5, F);
- IF EntityStack.Count = 0 THEN BEGIN
- FXmlVersion := CurAttr.Value ('version');
- FEncoding := CurAttr.Value ('encoding');
- FStandalone := CurAttr.Value ('standalone') = 'yes';
- END;
- CurFinal := StrPos (F, '?>');
- IF CurFinal <> NIL
- THEN INC (CurFinal)
- ELSE CurFinal := StrEnd (CurStart)-1;
- FCurEncoding := AnsiUpperCase (CurAttr.Value ('encoding'));
- IF FCurEncoding = '' THEN
- FCurEncoding := 'UTF-8'; // Default XML Encoding is UTF-8
- CurPartType := ptXmlProlog;
- CurName := '';
- CurContent := '';
-END;
-
-
-PROCEDURE TXmlParser.AnalyzeComment (Start : PChar; VAR Final : PChar);
- // Analyze Comments
-BEGIN
- Final := StrPos (Start+4, '-->');
- IF Final = NIL
- THEN Final := StrEnd (Start)-1
- ELSE INC (Final, 2);
- CurPartType := ptComment;
-END;
-
-
-PROCEDURE TXmlParser.AnalyzePI (Start : PChar; VAR Final : PChar);
- // Analyze Processing Instructions (PI)
- // This is also called for Character
-VAR
- F : PChar;
-BEGIN
- CurPartType := ptPI;
- Final := StrPos (Start+2, '?>');
- IF Final = NIL
- THEN Final := StrEnd (Start)-1
- ELSE INC (Final);
- ExtractName (Start+2, CWhitespace + ['?', '>'], F);
- SetStringSF (CurName, Start+2, F);
- SetStringSF (CurContent, F+1, Final-2);
- CurAttr.Analyze (F+1, F);
-END;
-
-
-PROCEDURE TXmlParser.AnalyzeDtdc;
- (* Analyze Document Type Declaration
- doctypedecl ::= '<!DOCTYPE' S Name (S ExternalID)? S? ('[' (markupdecl | PEReference | S)* ']' S?)? '>'
- markupdecl ::= elementdecl | AttlistDecl | EntityDecl | NotationDecl | PI | Comment
- PEReference ::= '%' Name ';'
-
- elementdecl ::= '<!ELEMENT' S Name S contentspec S? '>'
- AttlistDecl ::= '<!ATTLIST' S Name AttDef* S? '>'
- EntityDecl ::= '<!ENTITY' S Name S EntityDef S? '>' |
- '<!ENTITY' S '%' S Name S PEDef S? '>'
- NotationDecl ::= '<!NOTATION' S Name S (ExternalID | PublicID) S? '>'
- PI ::= '<?' PITarget (S (Char* - (Char* '?>' Char* )))? '?>'
- Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->' *)
-TYPE
- TPhase = (phName, phDtd, phInternal, phFinishing);
-VAR
- Phase : TPhase;
- F : PChar;
- ExternalID : TExternalID;
- ExternalDTD : TXmlParser;
- DER : TDtdElementRec;
-BEGIN
- DER.Start := CurStart;
- EntityStack.Clear; // Clear stack for Parameter Entities
- CurPartType := ptDtdc;
-
- // --- Don't read DTDc twice
- IF FDtdcFinal <> NIL THEN BEGIN
- CurFinal := FDtdcFinal;
- EXIT;
- END;
-
- // --- Scan DTDc
- CurFinal := CurStart + 9; // First char after '<!DOCTYPE'
- Phase := phName;
- REPEAT
- CASE CurFinal^ OF
- '%' : BEGIN
- PushPE (CurFinal);
- CONTINUE;
- END;
- #0 : IF EntityStack.Count = 0 THEN
- BREAK
- ELSE BEGIN
- CurFinal := EntityStack.Pop;
- CONTINUE;
- END;
- '[' : BEGIN
- Phase := phInternal;
- AnalyzeDtdElements (CurFinal+1, CurFinal);
- CONTINUE;
- END;
- ']' : Phase := phFinishing;
- '>' : BREAK;
- ELSE IF NOT (CurFinal^ IN CWhitespace) THEN BEGIN
- CASE Phase OF
- phName : IF (CurFinal^ IN CNameStart) THEN BEGIN
- ExtractName (CurFinal, CWhitespace + ['[', '>'], F);
- SetStringSF (FRootName, CurFinal, F);
- CurFinal := F;
- Phase := phDtd;
- END;
- phDtd : IF (StrLComp (CurFinal, 'SYSTEM', 6) = 0) OR
- (StrLComp (CurFinal, 'PUBLIC', 6) = 0) THEN BEGIN
- ExternalID := TExternalID.Create (CurFinal);
- ExternalDTD := LoadExternalEntity (ExternalId.SystemId, ExternalID.PublicId, '');
- F := StrPos (ExternalDtd.DocBuffer, '<!');
- IF F <> NIL THEN
- AnalyzeDtdElements (F, F);
- ExternalDTD.Free;
- CurFinal := ExternalID.Final;
- ExternalID.Free;
- END;
- ELSE BEGIN
- DER.ElementType := deError;
- DER.Pos := CurFinal;
- DER.Final := CurFinal;
- DtdElementFound (DER);
- END;
- END;
-
- END;
- END;
- INC (CurFinal);
- UNTIL FALSE;
-
- CurPartType := ptDtdc;
- CurName := '';
- CurContent := '';
-
- // It is an error in the document if "EntityStack" is not empty now
- IF EntityStack.Count > 0 THEN BEGIN
- DER.ElementType := deError;
- DER.Final := CurFinal;
- DER.Pos := CurFinal;
- DtdElementFound (DER);
- END;
-
- EntityStack.Clear; // Clear stack for General Entities
- FDtdcFinal := CurFinal;
-END;
-
-
-PROCEDURE TXmlParser.AnalyzeDtdElements (Start : PChar; VAR Final : PChar);
- // Analyze the "Elements" of a DTD contained in the external or
- // internal DTD subset.
-VAR
- DER : TDtdElementRec;
-BEGIN
- Final := Start;
- REPEAT
- CASE Final^ OF
- '%' : BEGIN
- PushPE (Final);
- CONTINUE;
- END;
- #0 : IF EntityStack.Count = 0 THEN
- BREAK
- ELSE BEGIN
- CurFinal := EntityStack.Pop;
- CONTINUE;
- END;
- ']',
- '>' : BREAK;
- '<' : IF StrLComp (Final, '<!ELEMENT', 9) = 0 THEN AnalyzeElementDecl (Final, Final)
- ELSE IF StrLComp (Final, '<!ATTLIST', 9) = 0 THEN AnalyzeAttListDecl (Final, Final)
- ELSE IF StrLComp (Final, '<!ENTITY', 8) = 0 THEN AnalyzeEntityDecl (Final, Final)
- ELSE IF StrLComp (Final, '<!NOTATION', 10) = 0 THEN AnalyzeNotationDecl (Final, Final)
- ELSE IF StrLComp (Final, '<?', 2) = 0 THEN BEGIN // PI in DTD
- DER.ElementType := dePI;
- DER.Start := Final;
- AnalyzePI (Final, Final);
- DER.Target := PChar (CurName);
- DER.Content := PChar (CurContent);
- DER.AttrList := CurAttr;
- DER.Final := Final;
- DtdElementFound (DER);
- END
- ELSE IF StrLComp (Final, '<!--', 4) = 0 THEN BEGIN // Comment in DTD
- DER.ElementType := deComment;
- DER.Start := Final;
- AnalyzeComment (Final, Final);
- DER.Final := Final;
- DtdElementFound (DER);
- END
- ELSE BEGIN
- DER.ElementType := deError;
- DER.Start := Final;
- DER.Pos := Final;
- DER.Final := Final;
- DtdElementFound (DER);
- END;
-
- END;
- INC (Final);
- UNTIL FALSE;
-END;
-
-
-PROCEDURE TXmlParser.AnalyzeTag;
- // Analyze Tags
-VAR
- S, F : PChar;
- Attr : TAttr;
- ElemDef : TElemDef;
- AttrDef : TAttrDef;
- I : INTEGER;
-BEGIN
- CurPartType := ptStartTag;
- S := CurStart+1;
- IF S^ = '/' THEN BEGIN
- CurPartType := ptEndTag;
- INC (S);
- END;
- ExtractName (S, CWhitespace + ['/'], F);
- SetStringSF (CurName, S, F);
- CurAttr.Analyze (F+1, CurFinal);
- IF CurFinal^ = '/' THEN BEGIN
- CurPartType := ptEmptyTag;
- END;
- CurFinal := StrScanE (CurFinal, '>');
-
- // --- Set Default Attribute values for nonexistent attributes
- IF (CurPartType = ptStartTag) OR (CurPartType = ptEmptyTag) THEN BEGIN
- ElemDef := Elements.Node (CurName);
- IF ElemDef <> NIL THEN BEGIN
- FOR I := 0 TO ElemDef.Count-1 DO BEGIN
- AttrDef := TAttrDef (ElemDef [I]);
- Attr := TAttr (CurAttr.Node (AttrDef.Name));
- IF (Attr = NIL) AND (AttrDef.Value <> '') THEN BEGIN
- Attr := TAttr.Create (AttrDef.Name, AttrDef.Value);
- Attr.ValueType := vtDefault;
- CurAttr.Add (Attr);
- END;
- IF Attr <> NIL THEN BEGIN
- CASE AttrDef.DefaultType OF
- adDefault : ;
- adRequired : ; // -!- It is an error in the document if "Attr.Value" is an empty string
- adImplied : Attr.ValueType := vtImplied;
- adFixed : BEGIN
- Attr.ValueType := vtFixed;
- Attr.Value := AttrDef.Value;
- END;
- END;
- Attr.AttrType := AttrDef.AttrType;
- END;
- END;
- END;
-
- // --- Normalize Attribute Values. XmlSpec:
- // - a character reference is processed by appending the referenced character to the attribute value
- // - an entity reference is processed by recursively processing the replacement text of the entity
- // - a whitespace character (#x20, #xD, #xA, #x9) is processed by appending #x20 to the normalized value,
- // except that only a single #x20 is appended for a "#xD#xA" sequence that is part of an external
- // parsed entity or the literal entity value of an internal parsed entity
- // - other characters are processed by appending them to the normalized value
- // If the declared value is not CDATA, then the XML processor must further process the
- // normalized attribute value by discarding any leading and trailing space (#x20) characters,
- // and by replacing sequences of space (#x20) characters by a single space (#x20) character.
- // All attributes for which no declaration has been read should be treated by a
- // non-validating parser as if declared CDATA.
- // !!! The XML 1.0 SE specification is somewhat different here
- // This code does not conform exactly to this specification
- FOR I := 0 TO CurAttr.Count-1 DO
- WITH TAttr (CurAttr [I]) DO BEGIN
- ReplaceGeneralEntities (Value);
- ReplaceCharacterEntities (Value);
- IF (AttrType <> atCData) AND (AttrType <> atUnknown)
- THEN Value := TranslateEncoding (TrimWs (ConvertWs (Value, TRUE)))
- ELSE Value := TranslateEncoding (ConvertWs (Value, FALSE));
- END;
- END;
-END;
-
-
-PROCEDURE TXmlParser.AnalyzeCData;
- // Analyze CDATA Sections
-BEGIN
- CurPartType := ptCData;
- CurFinal := StrPos (CurStart, CDEnd);
- IF CurFinal = NIL THEN BEGIN
- CurFinal := StrEnd (CurStart)-1;
- CurContent := TranslateEncoding (StrPas (CurStart+Length (CDStart)));
- END
- ELSE BEGIN
- SetStringSF (CurContent, CurStart+Length (CDStart), CurFinal-1);
- INC (CurFinal, Length (CDEnd)-1);
- CurContent := TranslateEncoding (CurContent);
- END;
-END;
-
-
-PROCEDURE TXmlParser.AnalyzeText (VAR IsDone : BOOLEAN);
- (* Analyzes Text Content between Tags. CurFinal will point to the last content character.
- Content ends at a '<' character or at the end of the document.
- Entity References and Character Entity references are resolved.
- If PackSpaces is TRUE, contiguous Whitespace Characters will be compressed to
- one Space #x20 character, Whitespace at the beginning and end of content will
- be trimmed off and content which is or becomes empty is not returned to
- the application (in this case, "IsDone" is set to FALSE which causes the
- Scan method to proceed directly to the next part. *)
-
- PROCEDURE ProcessEntity;
- (* Is called if there is an ampsersand '&' character found in the document.
- IN "CurFinal" points to the ampersand
- OUT "CurFinal" points to the first character after the semi-colon ';' *)
- VAR
- P : PChar;
- Name : STRING;
- EntityDef : TEntityDef;
- ExternalEntity : TXmlParser;
- BEGIN
- P := StrScan (CurFinal , ';');
- IF P <> NIL THEN BEGIN
- SetStringSF (Name, CurFinal+1, P-1);
-
- // Is it a Character Entity?
- IF (CurFinal+1)^ = '#' THEN BEGIN
- IF UpCase ((CurFinal+2)^) = 'X' // !!! Can't use "CHR" for Unicode characters > 255:
- THEN CurContent := CurContent + CHR (StrToIntDef ('$'+Copy (Name, 3, MaxInt), 32))
- ELSE CurContent := CurContent + CHR (StrToIntDef (Copy (Name, 2, MaxInt), 32));
- CurFinal := P+1;
- EXIT;
- END
-
- // Is it a Predefined Entity?
- ELSE IF Name = 'lt' THEN BEGIN CurContent := CurContent + '<'; CurFinal := P+1; EXIT; END
- ELSE IF Name = 'gt' THEN BEGIN CurContent := CurContent + '>'; CurFinal := P+1; EXIT; END
- ELSE IF Name = 'amp' THEN BEGIN CurContent := CurContent + '&'; CurFinal := P+1; EXIT; END
- ELSE IF Name = 'apos' THEN BEGIN CurContent := CurContent + ''''; CurFinal := P+1; EXIT; END
- ELSE IF Name = 'quot' THEN BEGIN CurContent := CurContent + '"'; CurFinal := P+1; EXIT; END;
-
- // Replace with Entity from DTD
- EntityDef := TEntityDef (Entities.Node (Name));
- IF EntityDef <> NIL THEN BEGIN
- IF EntityDef.Value <> '' THEN BEGIN
- EntityStack.Push (P+1);
- CurFinal := PChar (EntityDef.Value);
- END
- ELSE BEGIN
- ExternalEntity := LoadExternalEntity (EntityDef.SystemId, EntityDef.PublicId, EntityDef.NotationName);
- EntityStack.Push (ExternalEntity, P+1);
- CurFinal := ExternalEntity.DocBuffer;
- END;
- END
- ELSE BEGIN
- CurContent := CurContent + Name;
- CurFinal := P+1;
- END;
- END
- ELSE BEGIN
- INC (CurFinal);
- END;
- END;
-
-VAR
- C : INTEGER;
-BEGIN
- CurFinal := CurStart;
- CurPartType := ptContent;
- CurContent := '';
- C := 0;
- REPEAT
- CASE CurFinal^ OF
- '&' : BEGIN
- CurContent := CurContent + TranslateEncoding (StrLPas (CurFinal-C, C));
- C := 0;
- ProcessEntity;
- CONTINUE;
- END;
- #0 : BEGIN
- IF EntityStack.Count = 0 THEN
- BREAK
- ELSE BEGIN
- CurContent := CurContent + TranslateEncoding (StrLPas (CurFinal-C, C));
- C := 0;
- CurFinal := EntityStack.Pop;
- CONTINUE;
- END;
- END;
- '<' : BREAK;
- ELSE INC (C);
- END;
- INC (CurFinal);
- UNTIL FALSE;
- CurContent := CurContent + TranslateEncoding (StrLPas (CurFinal-C, C));
- DEC (CurFinal);
-
- IF FNormalize THEN BEGIN
- CurContent := ConvertWs (TrimWs (CurContent), TRUE);
- IsDone := CurContent <> ''; // IsDone will only get FALSE if PackSpaces is TRUE
- END;
-END;
-
-
-PROCEDURE TXmlParser.AnalyzeElementDecl (Start : PChar; VAR Final : PChar);
- (* Parse <!ELEMENT declaration starting at "Start"
- Final must point to the terminating '>' character
- XmlSpec 3.2:
- elementdecl ::= '<!ELEMENT' S Name S contentspec S? '>'
- contentspec ::= 'EMPTY' | 'ANY' | Mixed | children
- Mixed ::= '(' S? '#PCDATA' (S? '|' S? Name)* S? ')*' |
- '(' S? '#PCDATA' S? ')'
- children ::= (choice | seq) ('?' | '*' | '+')?
- choice ::= '(' S? cp ( S? '|' S? cp )* S? ')'
- cp ::= (Name | choice | seq) ('?' | '*' | '+')?
- seq ::= '(' S? cp ( S? ',' S? cp )* S? ')'
-
- More simply:
- contentspec ::= EMPTY
- ANY
- '(#PCDATA)'
- '(#PCDATA | A | B)*'
- '(A, B, C)'
- '(A | B | C)'
- '(A?, B*, C+),
- '(A, (B | C | D)* )' *)
-VAR
- Element : TElemDef;
- Elem2 : TElemDef;
- F : PChar;
- DER : TDtdElementRec;
-BEGIN
- Element := TElemDef.Create;
- Final := Start + 9;
- DER.Start := Start;
- REPEAT
- IF Final^ = '>' THEN BREAK;
- IF (Final^ IN CNameStart) AND (Element.Name = '') THEN BEGIN
- ExtractName (Final, CWhitespace, F);
- SetStringSF (Element.Name, Final, F);
- Final := F;
- F := StrScan (Final+1, '>');
- IF F = NIL THEN BEGIN
- Element.Definition := STRING (Final);
- Final := StrEnd (Final);
- BREAK;
- END
- ELSE BEGIN
- SetStringSF (Element.Definition, Final+1, F-1);
- Final := F;
- BREAK;
- END;
- END;
- INC (Final);
- UNTIL FALSE;
- Element.Definition := DelChars (Element.Definition, CWhitespace);
- ReplaceParameterEntities (Element.Definition);
- IF Element.Definition = 'EMPTY' THEN Element.ElemType := etEmpty
- ELSE IF Element.Definition = 'ANY' THEN Element.ElemType := etAny
- ELSE IF Copy (Element.Definition, 1, 8) = '(#PCDATA' THEN Element.ElemType := etMixed
- ELSE IF Copy (Element.Definition, 1, 1) = '(' THEN Element.ElemType := etChildren
- ELSE Element.ElemType := etAny;
-
- Elem2 := Elements.Node (Element.Name);
- IF Elem2 <> NIL THEN
- Elements.Delete (Elements.IndexOf (Elem2));
- Elements.Add (Element);
- Final := StrScanE (Final, '>');
- DER.ElementType := deElement;
- DER.ElemDef := Element;
- DER.Final := Final;
- DtdElementFound (DER);
-END;
-
-
-PROCEDURE TXmlParser.AnalyzeAttListDecl (Start : PChar; VAR Final : PChar);
- (* Parse <!ATTLIST declaration starting at "Start"
- Final must point to the terminating '>' character
- XmlSpec 3.3:
- AttlistDecl ::= '<!ATTLIST' S Name AttDef* S? '>'
- AttDef ::= S Name S AttType S DefaultDecl
- AttType ::= StringType | TokenizedType | EnumeratedType
- StringType ::= 'CDATA'
- TokenizedType ::= 'ID' | 'IDREF' | 'IDREFS' | 'ENTITY' | 'ENTITIES' | 'NMTOKEN' | 'NMTOKENS'
- EnumeratedType ::= NotationType | Enumeration
- NotationType ::= 'NOTATION' S '(' S? Name (S? '|' S? Name)* S? ')'
- Enumeration ::= '(' S? Nmtoken (S? '|' S? Nmtoken)* S? ')'
- DefaultDecl ::= '#REQUIRED' | '#IMPLIED' | (('#FIXED' S)? AttValue)
- AttValue ::= '"' ([^<&"] | Reference)* '"' | "'" ([^<&'] | Reference)* "'"
- Examples:
- <!ATTLIST address
- A1 CDATA "Default"
- A2 ID #REQUIRED
- A3 IDREF #IMPLIED
- A4 IDREFS #IMPLIED
- A5 ENTITY #FIXED "&at;ü"
- A6 ENTITIES #REQUIRED
- A7 NOTATION (WMF | DXF) "WMF"
- A8 (A | B | C) #REQUIRED> *)
-TYPE
- TPhase = (phElementName, phName, phType, phNotationContent, phDefault);
-VAR
- Phase : TPhase;
- F : PChar;
- ElementName : STRING;
- ElemDef : TElemDef;
- AttrDef : TAttrDef;
- AttrDef2 : TAttrDef;
- Strg : STRING;
- DER : TDtdElementRec;
-BEGIN
- Final := Start + 9; // The character after <!ATTLIST
- Phase := phElementName;
- DER.Start := Start;
- AttrDef := NIL;
- ElemDef := NIL;
- REPEAT
- IF NOT (Final^ IN CWhitespace) THEN
- CASE Final^ OF
- '%' : BEGIN
- PushPE (Final);
- CONTINUE;
- END;
- #0 : IF EntityStack.Count = 0 THEN
- BREAK
- ELSE BEGIN
- Final := EntityStack.Pop;
- CONTINUE;
- END;
- '>' : BREAK;
- ELSE CASE Phase OF
- phElementName : BEGIN
- ExtractName (Final, CWhitespace + CQuoteChar + ['#'], F);
- SetStringSF (ElementName, Final, F);
- Final := F;
- ElemDef := Elements.Node (ElementName);
- IF ElemDef = NIL THEN BEGIN
- ElemDef := TElemDef.Create;
- ElemDef.Name := ElementName;
- ElemDef.Definition := 'ANY';
- ElemDef.ElemType := etAny;
- Elements.Add (ElemDef);
- END;
- Phase := phName;
- END;
- phName : BEGIN
- AttrDef := TAttrDef.Create;
- ExtractName (Final, CWhitespace + CQuoteChar + ['#'], F);
- SetStringSF (AttrDef.Name, Final, F);
- Final := F;
- AttrDef2 := TAttrDef (ElemDef.Node (AttrDef.Name));
- IF AttrDef2 <> NIL THEN
- ElemDef.Delete (ElemDef.IndexOf (AttrDef2));
- ElemDef.Add (AttrDef);
- Phase := phType;
- END;
- phType : BEGIN
- IF Final^ = '(' THEN BEGIN
- F := StrScan (Final+1, ')');
- IF F <> NIL
- THEN SetStringSF (AttrDef.TypeDef, Final+1, F-1)
- ELSE AttrDef.TypeDef := STRING (Final+1);
- AttrDef.TypeDef := DelChars (AttrDef.TypeDef, CWhitespace);
- AttrDef.AttrType := atEnumeration;
- ReplaceParameterEntities (AttrDef.TypeDef);
- ReplaceCharacterEntities (AttrDef.TypeDef);
- Phase := phDefault;
- END
- ELSE IF StrLComp (Final, 'NOTATION', 8) = 0 THEN BEGIN
- INC (Final, 8);
- AttrDef.AttrType := atNotation;
- Phase := phNotationContent;
- END
- ELSE BEGIN
- ExtractName (Final, CWhitespace+CQuoteChar+['#'], F);
- SetStringSF (AttrDef.TypeDef, Final, F);
- IF AttrDef.TypeDef = 'CDATA' THEN AttrDef.AttrType := atCData
- ELSE IF AttrDef.TypeDef = 'ID' THEN AttrDef.AttrType := atId
- ELSE IF AttrDef.TypeDef = 'IDREF' THEN AttrDef.AttrType := atIdRef
- ELSE IF AttrDef.TypeDef = 'IDREFS' THEN AttrDef.AttrType := atIdRefs
- ELSE IF AttrDef.TypeDef = 'ENTITY' THEN AttrDef.AttrType := atEntity
- ELSE IF AttrDef.TypeDef = 'ENTITIES' THEN AttrDef.AttrType := atEntities
- ELSE IF AttrDef.TypeDef = 'NMTOKEN' THEN AttrDef.AttrType := atNmToken
- ELSE IF AttrDef.TypeDef = 'NMTOKENS' THEN AttrDef.AttrType := atNmTokens;
- Phase := phDefault;
- END
- END;
- phNotationContent : BEGIN
- F := StrScan (Final, ')');
- IF F <> NIL THEN
- SetStringSF (AttrDef.Notations, Final+1, F-1)
- ELSE BEGIN
- AttrDef.Notations := STRING (Final+1);
- Final := StrEnd (Final);
- END;
- ReplaceParameterEntities (AttrDef.Notations);
- AttrDef.Notations := DelChars (AttrDef.Notations, CWhitespace);
- Phase := phDefault;
- END;
- phDefault : BEGIN
- IF Final^ = '#' THEN BEGIN
- ExtractName (Final, CWhiteSpace + CQuoteChar, F);
- SetStringSF (Strg, Final, F);
- Final := F;
- ReplaceParameterEntities (Strg);
- IF Strg = '#REQUIRED' THEN BEGIN AttrDef.DefaultType := adRequired; Phase := phName; END
- ELSE IF Strg = '#IMPLIED' THEN BEGIN AttrDef.DefaultType := adImplied; Phase := phName; END
- ELSE IF Strg = '#FIXED' THEN AttrDef.DefaultType := adFixed;
- END
- ELSE IF (Final^ IN CQuoteChar) THEN BEGIN
- ExtractQuote (Final, AttrDef.Value, Final);
- ReplaceParameterEntities (AttrDef.Value);
- ReplaceCharacterEntities (AttrDef.Value);
- Phase := phName;
- END;
- IF Phase = phName THEN BEGIN
- AttrDef := NIL;
- END;
- END;
-
- END;
- END;
- INC (Final);
- UNTIL FALSE;
-
- Final := StrScan (Final, '>');
-
- DER.ElementType := deAttList;
- DER.ElemDef := ElemDef;
- DER.Final := Final;
- DtdElementFound (DER);
-END;
-
-
-PROCEDURE TXmlParser.AnalyzeEntityDecl (Start : PChar; VAR Final : PChar);
- (* Parse <!ENTITY declaration starting at "Start"
- Final must point to the terminating '>' character
- XmlSpec 4.2:
- EntityDecl ::= '<!ENTITY' S Name S EntityDef S? '>' |
- '<!ENTITY' S '%' S Name S PEDef S? '>'
- EntityDef ::= EntityValue | (ExternalID NDataDecl?)
- PEDef ::= EntityValue | ExternalID
- NDataDecl ::= S 'NDATA' S Name
- EntityValue ::= '"' ([^%&"] | PEReference | EntityRef | CharRef)* '"' |
- "'" ([^%&'] | PEReference | EntityRef | CharRef)* "'"
- PEReference ::= '%' Name ';'
-
- Examples
- <!ENTITY test1 "Stefan Heymann"> <!-- Internal, general, parsed -->
- <!ENTITY test2 SYSTEM "ent2.xml"> <!-- External, general, parsed -->
- <!ENTITY test2 SYSTEM "ent3.gif" NDATA gif> <!-- External, general, unparsed -->
- <!ENTITY % test3 "<!ELEMENT q ANY>"> <!-- Internal, parameter -->
- <!ENTITY % test6 SYSTEM "ent6.xml"> <!-- External, parameter -->
- <!ENTITY test4 "&test1; ist lieb"> <!-- IGP, Replacement text <> literal value -->
- <!ENTITY test5 "<p>Dies ist ein Test-Absatz</p>"> <!-- IGP, See XmlSpec 2.4 -->
- *)
-TYPE
- TPhase = (phName, phContent, phNData, phNotationName, phFinalGT);
-VAR
- Phase : TPhase;
- IsParamEntity : BOOLEAN;
- F : PChar;
- ExternalID : TExternalID;
- EntityDef : TEntityDef;
- EntityDef2 : TEntityDef;
- DER : TDtdElementRec;
-BEGIN
- Final := Start + 8; // First char after <!ENTITY
- DER.Start := Start;
- Phase := phName;
- IsParamEntity := FALSE;
- EntityDef := TEntityDef.Create;
- REPEAT
- IF NOT (Final^ IN CWhitespace) THEN
- CASE Final^ OF
- '%' : IsParamEntity := TRUE;
- '>' : BREAK;
- ELSE CASE Phase OF
- phName : IF Final^ IN CNameStart THEN BEGIN
- ExtractName (Final, CWhitespace + CQuoteChar, F);
- SetStringSF (EntityDef.Name, Final, F);
- Final := F;
- Phase := phContent;
- END;
- phContent : IF Final^ IN CQuoteChar THEN BEGIN
- ExtractQuote (Final, EntityDef.Value, Final);
- Phase := phFinalGT;
- END
- ELSE IF (StrLComp (Final, 'SYSTEM', 6) = 0) OR
- (StrLComp (Final, 'PUBLIC', 6) = 0) THEN BEGIN
- ExternalID := TExternalID.Create (Final);
- EntityDef.SystemId := ExternalID.SystemId;
- EntityDef.PublicId := ExternalID.PublicId;
- Final := ExternalID.Final;
- Phase := phNData;
- ExternalID.Free;
- END;
- phNData : IF StrLComp (Final, 'NDATA', 5) = 0 THEN BEGIN
- INC (Final, 4);
- Phase := phNotationName;
- END;
- phNotationName : IF Final^ IN CNameStart THEN BEGIN
- ExtractName (Final, CWhitespace + ['>'], F);
- SetStringSF (EntityDef.NotationName, Final, F);
- Final := F;
- Phase := phFinalGT;
- END;
- phFinalGT : ; // -!- There is an error in the document if this branch is called
- END;
- END;
- INC (Final);
- UNTIL FALSE;
- IF IsParamEntity THEN BEGIN
- EntityDef2 := TEntityDef (ParEntities.Node (EntityDef.Name));
- IF EntityDef2 <> NIL THEN
- ParEntities.Delete (ParEntities.IndexOf (EntityDef2));
- ParEntities.Add (EntityDef);
- ReplaceCharacterEntities (EntityDef.Value);
- END
- ELSE BEGIN
- EntityDef2 := TEntityDef (Entities.Node (EntityDef.Name));
- IF EntityDef2 <> NIL THEN
- Entities.Delete (Entities.IndexOf (EntityDef2));
- Entities.Add (EntityDef);
- ReplaceParameterEntities (EntityDef.Value); // Create replacement texts (see XmlSpec 4.5)
- ReplaceCharacterEntities (EntityDef.Value);
- END;
- Final := StrScanE (Final, '>');
-
- DER.ElementType := deEntity;
- DER.EntityDef := EntityDef;
- DER.Final := Final;
- DtdElementFound (DER);
-END;
-
-
-PROCEDURE TXmlParser.AnalyzeNotationDecl (Start : PChar; VAR Final : PChar);
- // Parse <!NOTATION declaration starting at "Start"
- // Final must point to the terminating '>' character
- // XmlSpec 4.7: NotationDecl ::= '<!NOTATION' S Name S (ExternalID | PublicID) S? '>'
-TYPE
- TPhase = (phName, phExtId, phEnd);
-VAR
- ExternalID : TExternalID;
- Phase : TPhase;
- F : PChar;
- NotationDef : TNotationDef;
- DER : TDtdElementRec;
-BEGIN
- Final := Start + 10; // Character after <!NOTATION
- DER.Start := Start;
- Phase := phName;
- NotationDef := TNotationDef.Create;
- REPEAT
- IF NOT (Final^ IN CWhitespace) THEN
- CASE Final^ OF
- '>',
- #0 : BREAK;
- ELSE CASE Phase OF
- phName : BEGIN
- ExtractName (Final, CWhitespace + ['>'], F);
- SetStringSF (NotationDef.Name, Final, F);
- Final := F;
- Phase := phExtId;
- END;
- phExtId : BEGIN
- ExternalID := TExternalID.Create (Final);
- NotationDef.Value := ExternalID.SystemId;
- NotationDef.PublicId := ExternalID.PublicId;
- Final := ExternalId.Final;
- ExternalId.Free;
- Phase := phEnd;
- END;
- phEnd : ; // -!- There is an error in the document if this branch is called
- END;
- END;
- INC (Final);
- UNTIL FALSE;
- Notations.Add (NotationDef);
- Final := StrScanE (Final, '>');
-
- DER.ElementType := deNotation;
- DER.NotationDef := NotationDef;
- DER.Final := Final;
- DtdElementFound (DER);
-END;
-
-
-PROCEDURE TXmlParser.PushPE (VAR Start : PChar);
- (* If there is a parameter entity reference found in the data stream,
- the current position will be pushed to the entity stack.
- Start: IN Pointer to the '%' character starting the PE reference
- OUT Pointer to first character of PE replacement text *)
-VAR
- P : PChar;
- EntityDef : TEntityDef;
-BEGIN
- P := StrScan (Start, ';');
- IF P <> NIL THEN BEGIN
- EntityDef := TEntityDef (ParEntities.Node (StrSFPas (Start+1, P-1)));
- IF EntityDef <> NIL THEN BEGIN
- EntityStack.Push (P+1);
- Start := PChar (EntityDef.Value);
- END
- ELSE
- Start := P+1;
- END;
-END;
-
-
-PROCEDURE TXmlParser.ReplaceCharacterEntities (VAR Str : STRING);
- // Replaces all Character Entity References in the String
-VAR
- Start : INTEGER;
- PAmp : PChar;
- PSemi : PChar;
- PosAmp : INTEGER;
- Len : INTEGER; // Length of Entity Reference
-BEGIN
- IF Str = '' THEN EXIT;
- Start := 1;
- REPEAT
- PAmp := StrPos (PChar (Str) + Start-1, '&#');
- IF PAmp = NIL THEN BREAK;
- PSemi := StrScan (PAmp+2, ';');
- IF PSemi = NIL THEN BREAK;
- PosAmp := PAmp - PChar (Str) + 1;
- Len := PSemi-PAmp+1;
- IF CompareText (Str [PosAmp+2], 'x') = 0 // !!! Can't use "CHR" for Unicode characters > 255
- THEN Str [PosAmp] := CHR (StrToIntDef ('$'+Copy (Str, PosAmp+3, Len-4), 0))
- ELSE Str [PosAmp] := CHR (StrToIntDef (Copy (Str, PosAmp+2, Len-3), 32));
- Delete (Str, PosAmp+1, Len-1);
- Start := PosAmp + 1;
- UNTIL FALSE;
-END;
-
-
-PROCEDURE TXmlParser.ReplaceParameterEntities (VAR Str : STRING);
- // Recursively replaces all Parameter Entity References in the String
- PROCEDURE ReplaceEntities (VAR Str : STRING);
- VAR
- Start : INTEGER;
- PAmp : PChar;
- PSemi : PChar;
- PosAmp : INTEGER;
- Len : INTEGER;
- Entity : TEntityDef;
- Repl : STRING; // Replacement
- BEGIN
- IF Str = '' THEN EXIT;
- Start := 1;
- REPEAT
- PAmp := StrPos (PChar (Str)+Start-1, '%');
- IF PAmp = NIL THEN BREAK;
- PSemi := StrScan (PAmp+2, ';');
- IF PSemi = NIL THEN BREAK;
- PosAmp := PAmp - PChar (Str) + 1;
- Len := PSemi-PAmp+1;
- Entity := TEntityDef (ParEntities.Node (Copy (Str, PosAmp+1, Len-2)));
- IF Entity <> NIL THEN BEGIN
- Repl := Entity.Value;
- ReplaceEntities (Repl); // Recursion
- END
- ELSE
- Repl := Copy (Str, PosAmp, Len);
- Delete (Str, PosAmp, Len);
- Insert (Repl, Str, PosAmp);
- Start := PosAmp + Length (Repl);
- UNTIL FALSE;
- END;
-BEGIN
- ReplaceEntities (Str);
-END;
-
-
-PROCEDURE TXmlParser.ReplaceGeneralEntities (VAR Str : STRING);
- // Recursively replaces General Entity References in the String
- PROCEDURE ReplaceEntities (VAR Str : STRING);
- VAR
- Start : INTEGER;
- PAmp : PChar;
- PSemi : PChar;
- PosAmp : INTEGER;
- Len : INTEGER;
- EntityDef : TEntityDef;
- EntName : STRING;
- Repl : STRING; // Replacement
- ExternalEntity : TXmlParser;
- BEGIN
- IF Str = '' THEN EXIT;
- Start := 1;
- REPEAT
- PAmp := StrPos (PChar (Str)+Start-1, '&');
- IF PAmp = NIL THEN BREAK;
- PSemi := StrScan (PAmp+2, ';');
- IF PSemi = NIL THEN BREAK;
- PosAmp := PAmp - PChar (Str) + 1;
- Len := PSemi-PAmp+1;
- EntName := Copy (Str, PosAmp+1, Len-2);
- IF EntName = 'lt' THEN Repl := '<'
- ELSE IF EntName = 'gt' THEN Repl := '>'
- ELSE IF EntName = 'amp' THEN Repl := '&'
- ELSE IF EntName = 'apos' THEN Repl := ''''
- ELSE IF EntName = 'quot' THEN Repl := '"'
- ELSE BEGIN
- EntityDef := TEntityDef (Entities.Node (EntName));
- IF EntityDef <> NIL THEN BEGIN
- IF EntityDef.Value <> '' THEN // Internal Entity
- Repl := EntityDef.Value
- ELSE BEGIN // External Entity
- ExternalEntity := LoadExternalEntity (EntityDef.SystemId, EntityDef.PublicId, EntityDef.NotationName);
- Repl := StrPas (ExternalEntity.DocBuffer); // !!! What if it contains a Text Declaration?
- ExternalEntity.Free;
- END;
- ReplaceEntities (Repl); // Recursion
- END
- ELSE
- Repl := Copy (Str, PosAmp, Len);
- END;
- Delete (Str, PosAmp, Len);
- Insert (Repl, Str, PosAmp);
- Start := PosAmp + Length (Repl);
- UNTIL FALSE;
- END;
-BEGIN
- ReplaceEntities (Str);
-END;
-
-
-FUNCTION TXmlParser.LoadExternalEntity (SystemId, PublicId, Notation : STRING) : TXmlParser;
- // This will be called whenever there is a Parsed External Entity or
- // the DTD External Subset to be parsed.
- // It has to create a TXmlParser instance and load the desired Entity.
- // This instance of LoadExternalEntity assumes that "SystemId" is a valid
- // file name (relative to the Document source) and loads this file using
- // the LoadFromFile method.
-VAR
- Filename : STRING;
-BEGIN
- // --- Convert System ID to complete filename
- Filename := StringReplace (SystemId, '/', '\', [rfReplaceAll]);
- IF Copy (FSource, 1, 1) <> '<' THEN
- IF (Copy (Filename, 1, 2) = '\\') OR (Copy (Filename, 2, 1) = ':') THEN
- // Already has an absolute Path
- ELSE BEGIN
- Filename := ExtractFilePath (FSource) + Filename;
- END;
-
- // --- Load the File
- Result := TXmlParser.Create;
- Result.LoadFromFile (Filename);
-END;
-
-
-FUNCTION TXmlParser.TranslateEncoding (CONST Source : STRING) : STRING;
- // The member variable "CurEncoding" always holds the name of the current
- // encoding, e.g. 'UTF-8' or 'ISO-8859-1'.
- // This virtual method "TranslateEncoding" is responsible for translating
- // the content passed in the "Source" parameter to the Encoding which
- // is expected by the application.
- // This instance of "TranlateEncoding" assumes that the Application expects
- // Windows ANSI (Win1252) strings. It is able to transform UTF-8 or ISO-8859-1
- // encodings.
- // If you want your application to understand or create other encodings, you
- // override this function.
-BEGIN
- IF CurEncoding = 'UTF-8'
- THEN Result := Utf8ToAnsi (Source)
- ELSE Result := Source;
-END;
-
-
-PROCEDURE TXmlParser.DtdElementFound (DtdElementRec : TDtdElementRec);
- // This method is called for every element which is found in the DTD
- // declaration. The variant record TDtdElementRec is passed which
- // holds informations about the element.
- // You can override this function to handle DTD declarations.
- // Note that when you parse the same Document instance a second time,
- // the DTD will not get parsed again.
-BEGIN
-END;
-
-
-FUNCTION TXmlParser.GetDocBuffer: PChar;
- // Returns FBuffer or a pointer to a NUL char if Buffer is empty
-BEGIN
- IF FBuffer = NIL
- THEN Result := #0
- ELSE Result := FBuffer;
-END;
-
-
-(*$IFNDEF HAS_CONTNRS_UNIT
-===============================================================================================
-TObjectList
-===============================================================================================
-*)
-
-DESTRUCTOR TObjectList.Destroy;
-BEGIN
- Clear;
- SetCapacity(0);
- INHERITED Destroy;
-END;
-
-
-PROCEDURE TObjectList.Delete (Index : INTEGER);
-BEGIN
- IF (Index < 0) OR (Index >= Count) THEN EXIT;
- TObject (Items [Index]).Free;
- INHERITED Delete (Index);
-END;
-
-
-PROCEDURE TObjectList.Clear;
-BEGIN
- WHILE Count > 0 DO
- Delete (Count-1);
-END;
-
-(*$ENDIF *)
-
-(*
-===============================================================================================
-TNvpNode
---------
-Node base class for the TNvpList
-===============================================================================================
-*)
-
-CONSTRUCTOR TNvpNode.Create (TheName, TheValue : STRING);
-BEGIN
- INHERITED Create;
- Name := TheName;
- Value := TheValue;
-END;
-
-
-(*
-===============================================================================================
-TNvpList
---------
-A generic List of Name-Value Pairs, based on the TObjectList introduced in Delphi 5
-===============================================================================================
-*)
-
-PROCEDURE TNvpList.Add (Node : TNvpNode);
-VAR
- I : INTEGER;
-BEGIN
- FOR I := Count-1 DOWNTO 0 DO
- IF Node.Name > TNvpNode (Items [I]).Name THEN BEGIN
- Insert (I+1, Node);
- EXIT;
- END;
- Insert (0, Node);
-END;
-
-
-
-FUNCTION TNvpList.Node (Name : STRING) : TNvpNode;
- // Binary search for Node
-VAR
- L, H : INTEGER; // Low, High Limit
- T, C : INTEGER; // Test Index, Comparison result
- Last : INTEGER; // Last Test Index
-BEGIN
- IF Count=0 THEN BEGIN
- Result := NIL;
- EXIT;
- END;
-
- L := 0;
- H := Count;
- Last := -1;
- REPEAT
- T := (L+H) DIV 2;
- IF T=Last THEN BREAK;
- Result := TNvpNode (Items [T]);
- C := CompareStr (Result.Name, Name);
- IF C = 0 THEN EXIT
- ELSE IF C < 0 THEN L := T
- ELSE H := T;
- Last := T;
- UNTIL FALSE;
- Result := NIL;
-END;
-
-
-FUNCTION TNvpList.Node (Index : INTEGER) : TNvpNode;
-BEGIN
- IF (Index < 0) OR (Index >= Count)
- THEN Result := NIL
- ELSE Result := TNvpNode (Items [Index]);
-END;
-
-
-FUNCTION TNvpList.Value (Name : STRING) : STRING;
-VAR
- Nvp : TNvpNode;
-BEGIN
- Nvp := TNvpNode (Node (Name));
- IF Nvp <> NIL
- THEN Result := Nvp.Value
- ELSE Result := '';
-END;
-
-
-FUNCTION TNvpList.Value (Index : INTEGER) : STRING;
-BEGIN
- IF (Index < 0) OR (Index >= Count)
- THEN Result := ''
- ELSE Result := TNvpNode (Items [Index]).Value;
-END;
-
-
-FUNCTION TNvpList.Name (Index : INTEGER) : STRING;
-BEGIN
- IF (Index < 0) OR (Index >= Count)
- THEN Result := ''
- ELSE Result := TNvpNode (Items [Index]).Name;
-END;
-
-
-(*
-===============================================================================================
-TAttrList
-List of Attributes. The "Analyze" method extracts the Attributes from the given Buffer.
-Is used for extraction of Attributes in Start-Tags, Empty-Element Tags and the "pseudo"
-attributes in XML Prologs, Text Declarations and PIs.
-===============================================================================================
-*)
-
-PROCEDURE TAttrList.Analyze (Start : PChar; VAR Final : PChar);
- // Analyze the Buffer for Attribute=Name pairs.
- // Terminates when there is a character which is not IN CNameStart
- // (e.g. '?>' or '>' or '/>')
-TYPE
- TPhase = (phName, phEq, phValue);
-VAR
- Phase : TPhase;
- F : PChar;
- Name : STRING;
- Value : STRING;
- Attr : TAttr;
-BEGIN
- Clear;
- Phase := phName;
- Final := Start;
- REPEAT
- IF (Final^ = #0) OR (Final^ = '>') THEN BREAK;
- IF NOT (Final^ IN CWhitespace) THEN
- CASE Phase OF
- phName : BEGIN
- IF NOT (Final^ IN CNameStart) THEN EXIT;
- ExtractName (Final, CWhitespace + ['=', '/'], F);
- SetStringSF (Name, Final, F);
- Final := F;
- Phase := phEq;
- END;
- phEq : BEGIN
- IF Final^ = '=' THEN
- Phase := phValue
- END;
- phValue : BEGIN
- IF Final^ IN CQuoteChar THEN BEGIN
- ExtractQuote (Final, Value, F);
- Attr := TAttr.Create;
- Attr.Name := Name;
- Attr.Value := Value;
- Attr.ValueType := vtNormal;
- Add (Attr);
- Final := F;
- Phase := phName;
- END;
- END;
- END;
- INC (Final);
- UNTIL FALSE;
-END;
-
-
-(*
-===============================================================================================
-TElemList
-List of TElemDef nodes.
-===============================================================================================
-*)
-
-FUNCTION TElemList.Node (Name : STRING) : TElemDef;
- // Binary search for the Node with the given Name
-VAR
- L, H : INTEGER; // Low, High Limit
- T, C : INTEGER; // Test Index, Comparison result
- Last : INTEGER; // Last Test Index
-BEGIN
- IF Count=0 THEN BEGIN
- Result := NIL;
- EXIT;
- END;
-
- L := 0;
- H := Count;
- Last := -1;
- REPEAT
- T := (L+H) DIV 2;
- IF T=Last THEN BREAK;
- Result := TElemDef (Items [T]);
- C := CompareStr (Result.Name, Name);
- IF C = 0 THEN EXIT
- ELSE IF C < 0 THEN L := T
- ELSE H := T;
- Last := T;
- UNTIL FALSE;
- Result := NIL;
-END;
-
-
-PROCEDURE TElemList.Add (Node : TElemDef);
-VAR
- I : INTEGER;
-BEGIN
- FOR I := Count-1 DOWNTO 0 DO
- IF Node.Name > TElemDef (Items [I]).Name THEN BEGIN
- Insert (I+1, Node);
- EXIT;
- END;
- Insert (0, Node);
-END;
-
-
-(*
-===============================================================================================
-TScannerXmlParser
-A TXmlParser descendant for the TCustomXmlScanner component
-===============================================================================================
-*)
-
-TYPE
- TScannerXmlParser = CLASS (TXmlParser)
- Scanner : TCustomXmlScanner;
- CONSTRUCTOR Create (TheScanner : TCustomXmlScanner);
- FUNCTION LoadExternalEntity (SystemId, PublicId,
- Notation : STRING) : TXmlParser; OVERRIDE;
- FUNCTION TranslateEncoding (CONST Source : STRING) : STRING; OVERRIDE;
- PROCEDURE DtdElementFound (DtdElementRec : TDtdElementRec); OVERRIDE;
- END;
-
-CONSTRUCTOR TScannerXmlParser.Create (TheScanner : TCustomXmlScanner);
-BEGIN
- INHERITED Create;
- Scanner := TheScanner;
-END;
-
-
-FUNCTION TScannerXmlParser.LoadExternalEntity (SystemId, PublicId, Notation : STRING) : TXmlParser;
-BEGIN
- IF Assigned (Scanner.FOnLoadExternal)
- THEN Scanner.FOnLoadExternal (Scanner, SystemId, PublicId, Notation, Result)
- ELSE Result := INHERITED LoadExternalEntity (SystemId, PublicId, Notation);
-END;
-
-
-FUNCTION TScannerXmlParser.TranslateEncoding (CONST Source : STRING) : STRING;
-BEGIN
- IF Assigned (Scanner.FOnTranslateEncoding)
- THEN Result := Scanner.FOnTranslateEncoding (Scanner, CurEncoding, Source)
- ELSE Result := INHERITED TranslateEncoding (Source);
-END;
-
-
-PROCEDURE TScannerXmlParser.DtdElementFound (DtdElementRec : TDtdElementRec);
-BEGIN
- WITH DtdElementRec DO
- CASE ElementType OF
- deElement : Scanner.WhenElement (ElemDef);
- deAttList : Scanner.WhenAttList (ElemDef);
- deEntity : Scanner.WhenEntity (EntityDef);
- deNotation : Scanner.WhenNotation (NotationDef);
- dePI : Scanner.WhenPI (STRING (Target), STRING (Content), AttrList);
- deComment : Scanner.WhenComment (StrSFPas (Start, Final));
- deError : Scanner.WhenDtdError (Pos);
- END;
-END;
-
-
-(*
-===============================================================================================
-TCustomXmlScanner
-===============================================================================================
-*)
-
-CONSTRUCTOR TCustomXmlScanner.Create (AOwner: TComponent);
-BEGIN
- INHERITED;
- FXmlParser := TScannerXmlParser.Create (Self);
-END;
-
-
-DESTRUCTOR TCustomXmlScanner.Destroy;
-BEGIN
- FXmlParser.Free;
- INHERITED;
-END;
-
-
-PROCEDURE TCustomXmlScanner.LoadFromFile (Filename : TFilename);
- // Load XML Document from file
-BEGIN
- FXmlParser.LoadFromFile (Filename);
-END;
-
-
-PROCEDURE TCustomXmlScanner.LoadFromBuffer (Buffer : PChar);
- // Load XML Document from buffer
-BEGIN
- FXmlParser.LoadFromBuffer (Buffer);
-END;
-
-
-PROCEDURE TCustomXmlScanner.SetBuffer (Buffer : PChar);
- // Refer to Buffer
-BEGIN
- FXmlParser.SetBuffer (Buffer);
-END;
-
-
-FUNCTION TCustomXmlScanner.GetFilename : TFilename;
-BEGIN
- Result := FXmlParser.Source;
-END;
-
-
-FUNCTION TCustomXmlScanner.GetNormalize : BOOLEAN;
-BEGIN
- Result := FXmlParser.Normalize;
-END;
-
-
-PROCEDURE TCustomXmlScanner.SetNormalize (Value : BOOLEAN);
-BEGIN
- FXmlParser.Normalize := Value;
-END;
-
-
-PROCEDURE TCustomXmlScanner.WhenXmlProlog(XmlVersion, Encoding: STRING; Standalone : BOOLEAN);
- // Is called when the parser has parsed the <? xml ?> declaration of the prolog
-BEGIN
- IF Assigned (FOnXmlProlog) THEN FOnXmlProlog (Self, XmlVersion, Encoding, Standalone);
-END;
-
-
-PROCEDURE TCustomXmlScanner.WhenComment (Comment : STRING);
- // Is called when the parser has parsed a <!-- comment -->
-BEGIN
- IF Assigned (FOnComment) THEN FOnComment (Self, Comment);
-END;
-
-
-PROCEDURE TCustomXmlScanner.WhenPI (Target, Content: STRING; Attributes : TAttrList);
- // Is called when the parser has parsed a <?processing instruction ?>
-BEGIN
- IF Assigned (FOnPI) THEN FOnPI (Self, Target, Content, Attributes);
-END;
-
-
-PROCEDURE TCustomXmlScanner.WhenDtdRead (RootElementName : STRING);
- // Is called when the parser has completely parsed the DTD
-BEGIN
- IF Assigned (FOnDtdRead) THEN FOnDtdRead (Self, RootElementName);
-END;
-
-
-PROCEDURE TCustomXmlScanner.WhenStartTag (TagName : STRING; Attributes : TAttrList);
- // Is called when the parser has parsed a start tag like <p>
-BEGIN
- IF Assigned (FOnStartTag) THEN FOnStartTag (Self, TagName, Attributes);
-END;
-
-
-PROCEDURE TCustomXmlScanner.WhenEmptyTag (TagName : STRING; Attributes : TAttrList);
- // Is called when the parser has parsed an Empty Element Tag like <br/>
-BEGIN
- IF Assigned (FOnEmptyTag) THEN FOnEmptyTag (Self, TagName, Attributes);
-END;
-
-
-PROCEDURE TCustomXmlScanner.WhenEndTag (TagName : STRING);
- // Is called when the parser has parsed an End Tag like </p>
-BEGIN
- IF Assigned (FOnEndTag) THEN FOnEndTag (Self, TagName);
-END;
-
-
-PROCEDURE TCustomXmlScanner.WhenContent (Content : STRING);
- // Is called when the parser has parsed an element's text content
-BEGIN
- IF Assigned (FOnContent) THEN FOnContent (Self, Content);
-END;
-
-
-PROCEDURE TCustomXmlScanner.WhenCData (Content : STRING);
- // Is called when the parser has parsed a CDATA section
-BEGIN
- IF Assigned (FOnCData) THEN FOnCData (Self, Content);
-END;
-
-
-PROCEDURE TCustomXmlScanner.WhenElement (ElemDef : TElemDef);
- // Is called when the parser has parsed an <!ELEMENT> definition
- // inside the DTD
-BEGIN
- IF Assigned (FOnElement) THEN FOnElement (Self, ElemDef);
-END;
-
-
-PROCEDURE TCustomXmlScanner.WhenAttList (ElemDef : TElemDef);
- // Is called when the parser has parsed an <!ATTLIST> definition
- // inside the DTD
-BEGIN
- IF Assigned (FOnAttList) THEN FOnAttList (Self, ElemDef);
-END;
-
-
-PROCEDURE TCustomXmlScanner.WhenEntity (EntityDef : TEntityDef);
- // Is called when the parser has parsed an <!ENTITY> definition
- // inside the DTD
-BEGIN
- IF Assigned (FOnEntity) THEN FOnEntity (Self, EntityDef);
-END;
-
-
-PROCEDURE TCustomXmlScanner.WhenNotation (NotationDef : TNotationDef);
- // Is called when the parser has parsed a <!NOTATION> definition
- // inside the DTD
-BEGIN
- IF Assigned (FOnNotation) THEN FOnNotation (Self, NotationDef);
-END;
-
-
-PROCEDURE TCustomXmlScanner.WhenDtdError (ErrorPos : PChar);
- // Is called when the parser has found an Error in the DTD
-BEGIN
- IF Assigned (FOnDtdError) THEN FOnDtdError (Self, ErrorPos);
-END;
-
-
-PROCEDURE TCustomXmlScanner.Execute;
- // Perform scanning
- // Scanning is done synchronously, i.e. you can expect events to be triggered
- // in the order of the XML data stream. Execute will finish when the whole XML
- // document has been scanned or when the StopParser property has been set to TRUE.
-BEGIN
- FStopParser := FALSE;
- FXmlParser.StartScan;
- WHILE FXmlParser.Scan AND (NOT FStopParser) DO
- CASE FXmlParser.CurPartType OF
- ptNone : ;
- ptXmlProlog : WhenXmlProlog (FXmlParser.XmlVersion, FXmlParser.Encoding, FXmlParser.Standalone);
- ptComment : WhenComment (StrSFPas (FXmlParser.CurStart, FXmlParser.CurFinal));
- ptPI : WhenPI (FXmlParser.CurName, FXmlParser.CurContent, FXmlParser.CurAttr);
- ptDtdc : WhenDtdRead (FXmlParser.RootName);
- ptStartTag : WhenStartTag (FXmlParser.CurName, FXmlParser.CurAttr);
- ptEmptyTag : WhenEmptyTag (FXmlParser.CurName, FXmlParser.CurAttr);
- ptEndTag : WhenEndTag (FXmlParser.CurName);
- ptContent : WhenContent (FXmlParser.CurContent);
- ptCData : WhenCData (FXmlParser.CurContent);
- END;
-END;
-
-
-END.
+(** +=============================================================================================== +Name : LibXmlParser +=============================================================================================== +Project : All Projects +=============================================================================================== +Subject : Progressive XML Parser for all types of XML Files +=============================================================================================== +Author : Stefan Heymann + Eschenweg 3 + 72076 Tübingen + GERMANY + +E-Mail: stefan@destructor.de +URL: www.destructor.de +=============================================================================================== +Source, Legals ("Licence") +-------------------------- +The official site to get this parser is http://www.destructor.de/ + +Usage and Distribution of this Source Code is ruled by the +"Destructor.de Source code Licence" (DSL) which comes with this file or +can be downloaded at http://www.destructor.de/ + +IN SHORT: Usage and distribution of this source code is free. + You use it completely on your own risk. + +Postcardware +------------ +If you like this code, please send a postcard of your city to my above address. +=============================================================================================== +!!! All parts of this code which are not finished or not conforming exactly to + the XmlSpec are marked with three exclamation marks + +-!- Parts where the parser may be able to detect errors in the document's syntax are + marked with the dash-exlamation mark-dash sequence. +=============================================================================================== +Terminology: +------------ +- Start: Start of a buffer part +- Final: End (last character) of a buffer part +- DTD: Document Type Definition +- DTDc: Document Type Declaration +- XMLSpec: The current W3C XML Recommendation (version 1.0 as of 1998-02-10), Chapter No. +- Cur*: Fields concerning the "Current" part passed back by the "Scan" method +=============================================================================================== +Scanning the XML document +------------------------- +- Create TXmlParser Instance MyXml := TXmlParser.Create; +- Load XML Document MyXml.LoadFromFile (Filename); +- Start Scanning MyXml.StartScan; +- Scan Loop WHILE MyXml.Scan DO +- Test for Part Type CASE MyXml.CurPartType OF +- Handle Parts ... : ;;; +- Handle Parts ... : ;;; +- Handle Parts ... : ;;; + END; +- Destroy MyXml.Free; +=============================================================================================== +Loading the XML document +------------------------ +You can load the XML document from a file with the "LoadFromFile" method. +It is beyond the scope of this parser to perform HTTP or FTP accesses. If you want your +application to handle such requests (URLs), you can load the XML via HTTP or FTP or whatever +protocol and hand over the data buffer using the "LoadFromBuffer" or "SetBuffer" method. +"LoadFromBuffer" loads the internal buffer of TXmlParser with the given null-terminated +string, thereby creating a copy of that buffer. +"SetBuffer" just takes the pointer to another buffer, which means that the given +buffer pointer must be valid while the document is accessed via TXmlParser. +=============================================================================================== +Encodings: +---------- +This XML parser kind of "understands" the following encodings: +- UTF-8 +- ISO-8859-1 +- Windows-1252 + +Any flavor of multi-byte characters (and this includes UTF-16) is not supported. Sorry. + +Every string which has to be passed to the application passes the virtual method +"TranslateEncoding" which translates the string from the current encoding (stored in +"CurEncoding") into the encoding the application wishes to receive. +The "TranslateEncoding" method that is built into TXmlParser assumes that the application +wants to receive Windows ANSI (Windows-1252, about the same as ISO-8859-1) and is able +to convert UTF-8 and ISO-8859-1 encodings. +For other source and target encodings, you will have to override "TranslateEncoding". +=============================================================================================== +Buffer Handling +--------------- +- The document must be loaded completely into a piece of RAM +- All character positions are referenced by PChar pointers +- The TXmlParser instance can either "own" the buffer itself (then, FBufferSize is > 0) + or reference the buffer of another instance or object (then, FBuffersize is 0 and + FBuffer is not NIL) +- The Property DocBuffer passes back a pointer to the first byte of the document. If there + is no document stored (FBuffer is NIL), the DocBuffer returns a pointer to a NULL character. +=============================================================================================== +Whitespace Handling +------------------- +The TXmlParser property "PackSpaces" determines how Whitespace is returned in Text Content: +While PackSpaces is true, all leading and trailing whitespace characters are trimmed of, all +Whitespace is converted to Space #x20 characters and contiguous Whitespace characters are +compressed to one. +If the "Scan" method reports a ptContent part, the application can get the original text +with all whitespace characters by extracting the characters from "CurStart" to "CurFinal". +If the application detects an xml:space attribute, it can set "PackSpaces" accordingly or +use CurStart/CurFinal. +Please note that TXmlParser does _not_ normalize Line Breaks to single LineFeed characters +as the XmlSpec requires (XmlSpec 2.11). +The xml:space attribute is not handled by TXmlParser. This is on behalf of the application. +=============================================================================================== +Non-XML-Conforming +------------------ +TXmlParser does not conform 100 % exactly to the XmlSpec: +- UTF-16 is not supported (XmlSpec 2.2) + (Workaround: Convert UTF-16 to UTF-8 and hand the buffer over to TXmlParser) +- As the parser only works with single byte strings, all Unicode characters > 255 + can currently not be handled correctly. +- Line breaks are not normalized to single Linefeed #x0A characters (XmlSpec 2.11) + (Workaround: The Application can access the text contents on its own [CurStart, CurFinal], + thereby applying every normalization it wishes to) +- The attribute value normalization does not work exactly as defined in the + Second Edition of the XML 1.0 specification. +- See also the code parts marked with three consecutive exclamation marks. These are + parts which are not finished in the current code release. + +This list may be incomplete, so it may grow if I get to know any other points. +As work on the parser proceeds, this list may also shrink. +=============================================================================================== +Things Todo +----------- +- Introduce a new event/callback which is called when there is an unresolvable + entity or character reference +- Support Unicode +- Use Streams instead of reading the whole XML into memory +=============================================================================================== +Change History, Version numbers +------------------------------- +The Date is given in ISO Year-Month-Day (YYYY-MM-DD) order. +Versions are counted from 1.0.0 beginning with the version from 2000-03-16. +Unreleased versions don't get a version number. + +Date Author Version Changes +----------------------------------------------------------------------------------------------- +2000-03-16 HeySt 1.0.0 Start +2000-03-28 HeySt 1.0.1 Initial Publishing of TXmlParser on the destructor.de Web Site +2000-03-30 HeySt 1.0.2 TXmlParser.AnalyzeCData: Call "TranslateEncoding" for CurContent +2000-03-31 HeySt 1.0.3 Deleted the StrPosE function (was not needed anyway) +2000-04-04 HeySt 1.0.4 TDtdElementRec modified: Start/Final for all Elements; + Should be backwards compatible. + AnalyzeDtdc: Set CurPartType to ptDtdc +2000-04-23 HeySt 1.0.5 New class TObjectList. Eliminated reference to the Delphi 5 + "Contnrs" unit so LibXmlParser is Delphi 4 compatible. +2000-07-03 HeySt 1.0.6 TNvpNode: Added Constructor +2000-07-11 HeySt 1.0.7 Removed "Windows" from USES clause + Added three-exclamation-mark comments for Utf8ToAnsi/AnsiToUtf8 + Added three-exclamation-mark comments for CHR function calls +2000-07-23 HeySt 1.0.8 TXmlParser.Clear: CurAttr.Clear; EntityStack.Clear; + (This was not a bug; just defensive programming) +2000-07-29 HeySt 1.0.9 TNvpList: Added methods: Node(Index), Value(Index), Name(Index); +2000-10-07 HeySt Introduced Conditional Defines + Uses Contnrs unit and its TObjectList class again for + Delphi 5 and newer versions +2001-01-30 HeySt Introduced Version Numbering + Made LoadFromFile and LoadFromBuffer BOOLEAN functions + Introduced FileMode parameter for LoadFromFile + BugFix: TAttrList.Analyze: Must add CWhitespace to ExtractName call + Comments worked over +2001-02-28 HeySt 1.0.10 Completely worked over and tested the UTF-8 functions + Fixed a bug in TXmlParser.Scan which caused it to start over when it + was called after the end of scanning, resulting in an endless loop + TEntityStack is now a TObjectList instead of TList +2001-07-03 HeySt 1.0.11 Updated Compiler Version IFDEFs for Kylix +2001-07-11 HeySt 1.0.12 New TCustomXmlScanner component (taken over from LibXmlComps.pas) +2001-07-14 HeySt 1.0.13 Bugfix TCustomXmlScanner.FOnTranslateEncoding +2001-10-22 HeySt Don't clear CurName anymore when the parser finds a CDATA section. +2001-12-03 HeySt 1.0.14 TObjectList.Clear: Make call to INHERITED method (fixes a memory leak) +2001-12-05 HeySt 1.0.15 TObjectList.Clear: removed call to INHERITED method + TObjectList.Destroy: Inserted SetCapacity call. + Reduces need for frequent re-allocation of pointer buffer + Dedicated to my father, Theodor Heymann +2002-06-26 HeySt 1.0.16 TXmlParser.Scan: Fixed a bug with PIs whose name is beginning + with 'xml'. Thanks to Uwe Kamm for submitting this bug. + The CurEncoding property is now always in uppercase letters (the XML + spec wants it to be treated case independently so when it's uppercase + comparisons are faster) +2002-03-04 HeySt 1.0.17 Included an IFDEF for Delphi 7 (VER150) and Kylix + There is a new symbol HAS_CONTNRS_UNIT which is used now to + distinguish between IDEs which come with the Contnrs unit and + those that don't. +*) + +UNIT libxmlparser; + +{$I jedi-sdl.inc} + +INTERFACE + +USES + SysUtils, Classes, + (*$IFDEF HAS_CONTNRS_UNIT *) // The Contnrs Unit was introduced in Delphi 5 + Contnrs, + (*$ENDIF*) + Math; + +CONST + CVersion = '1.0.17'; // This variable will be updated for every release + // (I hope, I won't forget to do it everytime ...) + +TYPE + TPartType = // --- Document Part Types + (ptNone, // Nothing + ptXmlProlog, // XML Prolog XmlSpec 2.8 / 4.3.1 + ptComment, // Comment XmlSpec 2.5 + ptPI, // Processing Instruction XmlSpec 2.6 + ptDtdc, // Document Type Declaration XmlSpec 2.8 + ptStartTag, // Start Tag XmlSpec 3.1 + ptEmptyTag, // Empty-Element Tag XmlSpec 3.1 + ptEndTag, // End Tag XmlSpec 3.1 + ptContent, // Text Content between Tags + ptCData); // CDATA Section XmlSpec 2.7 + + TDtdElemType = // --- DTD Elements + (deElement, // !ELEMENT declaration + deAttList, // !ATTLIST declaration + deEntity, // !ENTITY declaration + deNotation, // !NOTATION declaration + dePI, // PI in DTD + deComment, // Comment in DTD + deError); // Error found in the DTD + +TYPE + TAttrList = CLASS; + TEntityStack = CLASS; + TNvpList = CLASS; + TElemDef = CLASS; + TElemList = CLASS; + TEntityDef = CLASS; + TNotationDef = CLASS; + + TDtdElementRec = RECORD // --- This Record is returned by the DTD parser callback function + Start, Final : PChar; // Start/End of the Element's Declaration + CASE ElementType : TDtdElemType OF // Type of the Element + deElement, // <!ELEMENT> + deAttList : (ElemDef : TElemDef); // <!ATTLIST> + deEntity : (EntityDef : TEntityDef); // <!ENTITY> + deNotation : (NotationDef : TNotationDef); // <!NOTATION> + dePI : (Target : PChar; // <?PI ?> + Content : PChar; + AttrList : TAttrList); + deError : (Pos : PChar); // Error + // deComment : ((No additional fields here)); // <!-- Comment --> + END; + + TXmlParser = CLASS // --- Internal Properties and Methods + PROTECTED + FBuffer : PChar; // NIL if there is no buffer available + FBufferSize : INTEGER; // 0 if the buffer is not owned by the Document instance + FSource : STRING; // Name of Source of document. Filename for Documents loaded with LoadFromFile + + FXmlVersion : STRING; // XML version from Document header. Default is '1.0' + FEncoding : STRING; // Encoding from Document header. Default is 'UTF-8' + FStandalone : BOOLEAN; // Standalone declaration from Document header. Default is 'yes' + FRootName : STRING; // Name of the Root Element (= DTD name) + FDtdcFinal : PChar; // Pointer to the '>' character terminating the DTD declaration + + FNormalize : BOOLEAN; // If true: Pack Whitespace and don't return empty contents + EntityStack : TEntityStack; // Entity Stack for Parameter and General Entities + FCurEncoding : STRING; // Current Encoding during parsing (always uppercase) + + PROCEDURE AnalyzeProlog; // Analyze XML Prolog or Text Declaration + PROCEDURE AnalyzeComment (Start : PChar; VAR Final : PChar); // Analyze Comments + PROCEDURE AnalyzePI (Start : PChar; VAR Final : PChar); // Analyze Processing Instructions (PI) + PROCEDURE AnalyzeDtdc; // Analyze Document Type Declaration + PROCEDURE AnalyzeDtdElements (Start : PChar; VAR Final : PChar); // Analyze DTD declarations + PROCEDURE AnalyzeTag; // Analyze Start/End/Empty-Element Tags + PROCEDURE AnalyzeCData; // Analyze CDATA Sections + PROCEDURE AnalyzeText (VAR IsDone : BOOLEAN); // Analyze Text Content between Tags + PROCEDURE AnalyzeElementDecl (Start : PChar; VAR Final : PChar); + PROCEDURE AnalyzeAttListDecl (Start : PChar; VAR Final : PChar); + PROCEDURE AnalyzeEntityDecl (Start : PChar; VAR Final : PChar); + PROCEDURE AnalyzeNotationDecl (Start : PChar; VAR Final : PChar); + + PROCEDURE PushPE (VAR Start : PChar); + PROCEDURE ReplaceCharacterEntities (VAR Str : STRING); + PROCEDURE ReplaceParameterEntities (VAR Str : STRING); + PROCEDURE ReplaceGeneralEntities (VAR Str : STRING); + + FUNCTION GetDocBuffer : PChar; // Returns FBuffer or a pointer to a NUL char if Buffer is empty + + PUBLIC // --- Document Properties + PROPERTY XmlVersion : STRING READ FXmlVersion; // XML version from the Document Prolog + PROPERTY Encoding : STRING READ FEncoding; // Document Encoding from Prolog + PROPERTY Standalone : BOOLEAN READ FStandalone; // Standalone Declaration from Prolog + PROPERTY RootName : STRING READ FRootName; // Name of the Root Element + PROPERTY Normalize : BOOLEAN READ FNormalize WRITE FNormalize; // True if Content is to be normalized + PROPERTY Source : STRING READ FSource; // Name of Document Source (Filename) + PROPERTY DocBuffer : PChar READ GetDocBuffer; // Returns document buffer + PUBLIC // --- DTD Objects + Elements : TElemList; // Elements: List of TElemDef (contains Attribute Definitions) + Entities : TNvpList; // General Entities: List of TEntityDef + ParEntities : TNvpList; // Parameter Entities: List of TEntityDef + Notations : TNvpList; // Notations: List of TNotationDef + PUBLIC + CONSTRUCTOR Create; + DESTRUCTOR Destroy; OVERRIDE; + + // --- Document Handling + FUNCTION LoadFromFile (Filename : STRING; + FileMode : INTEGER = fmOpenRead OR fmShareDenyNone) : BOOLEAN; + // Loads Document from given file + FUNCTION LoadFromBuffer (Buffer : PChar) : BOOLEAN; // Loads Document from another buffer + PROCEDURE SetBuffer (Buffer : PChar); // References another buffer + PROCEDURE Clear; // Clear Document + + PUBLIC + // --- Scanning through the document + CurPartType : TPartType; // Current Type + CurName : STRING; // Current Name + CurContent : STRING; // Current Normalized Content + CurStart : PChar; // Current First character + CurFinal : PChar; // Current Last character + CurAttr : TAttrList; // Current Attribute List + PROPERTY CurEncoding : STRING READ FCurEncoding; // Current Encoding + PROCEDURE StartScan; + FUNCTION Scan : BOOLEAN; + + // --- Events / Callbacks + FUNCTION LoadExternalEntity (SystemId, PublicId, + Notation : STRING) : TXmlParser; VIRTUAL; + FUNCTION TranslateEncoding (CONST Source : STRING) : STRING; VIRTUAL; + PROCEDURE DtdElementFound (DtdElementRec : TDtdElementRec); VIRTUAL; + END; + + TValueType = // --- Attribute Value Type + (vtNormal, // Normal specified Attribute + vtImplied, // #IMPLIED attribute value + vtFixed, // #FIXED attribute value + vtDefault); // Attribute value from default value in !ATTLIST declaration + + TAttrDefault = // --- Attribute Default Type + (adDefault, // Normal default value + adRequired, // #REQUIRED attribute + adImplied, // #IMPLIED attribute + adFixed); // #FIXED attribute + + TAttrType = // --- Type of attribute + (atUnknown, // Unknown type + atCData, // Character data only + atID, // ID + atIdRef, // ID Reference + atIdRefs, // Several ID References, separated by Whitespace + atEntity, // Name of an unparsed Entity + atEntities, // Several unparsed Entity names, separated by Whitespace + atNmToken, // Name Token + atNmTokens, // Several Name Tokens, separated by Whitespace + atNotation, // A selection of Notation names (Unparsed Entity) + atEnumeration); // Enumeration + + TElemType = // --- Element content type + (etEmpty, // Element is always empty + etAny, // Element can have any mixture of PCDATA and any elements + etChildren, // Element must contain only elements + etMixed); // Mixed PCDATA and elements + + (*$IFDEF HAS_CONTNRS_UNIT *) + TObjectList = Contnrs.TObjectList; // Re-Export this identifier + (*$ELSE *) + TObjectList = CLASS (TList) + DESTRUCTOR Destroy; OVERRIDE; + PROCEDURE Delete (Index : INTEGER); + PROCEDURE Clear; OVERRIDE; + END; + (*$ENDIF *) + + TNvpNode = CLASS // Name-Value Pair Node + Name : STRING; + Value : STRING; + CONSTRUCTOR Create (TheName : STRING = ''; TheValue : STRING = ''); + END; + + TNvpList = CLASS (TObjectList) // Name-Value Pair List + PROCEDURE Add (Node : TNvpNode); + FUNCTION Node (Name : STRING) : TNvpNode; OVERLOAD; + FUNCTION Node (Index : INTEGER) : TNvpNode; OVERLOAD; + FUNCTION Value (Name : STRING) : STRING; OVERLOAD; + FUNCTION Value (Index : INTEGER) : STRING; OVERLOAD; + FUNCTION Name (Index : INTEGER) : STRING; + END; + + TAttr = CLASS (TNvpNode) // Attribute of a Start-Tag or Empty-Element-Tag + ValueType : TValueType; + AttrType : TAttrType; + END; + + TAttrList = CLASS (TNvpList) // List of Attributes + PROCEDURE Analyze (Start : PChar; VAR Final : PChar); + END; + + TEntityStack = CLASS (TObjectList) // Stack where current position is stored before parsing entities + PROTECTED + Owner : TXmlParser; + PUBLIC + CONSTRUCTOR Create (TheOwner : TXmlParser); + PROCEDURE Push (LastPos : PChar); OVERLOAD; + PROCEDURE Push (Instance : TObject; LastPos : PChar); OVERLOAD; + FUNCTION Pop : PChar; // Returns next char or NIL if EOF is reached. Frees Instance. + END; + + TAttrDef = CLASS (TNvpNode) // Represents a <!ATTLIST Definition. "Value" is the default value + TypeDef : STRING; // Type definition from the DTD + Notations : STRING; // Notation List, separated by pipe symbols '|' + AttrType : TAttrType; // Attribute Type + DefaultType : TAttrDefault; // Default Type + END; + + TElemDef = CLASS (TNvpList) // Represents a <!ELEMENT Definition. Is a list of TAttrDef-Nodes + Name : STRING; // Element name + ElemType : TElemType; // Element type + Definition : STRING; // Element definition from DTD + END; + + TElemList = CLASS (TObjectList) // List of TElemDef nodes + FUNCTION Node (Name : STRING) : TElemDef; + PROCEDURE Add (Node : TElemDef); + END; + + TEntityDef = CLASS (TNvpNode) // Represents a <!ENTITY Definition. + SystemId : STRING; + PublicId : STRING; + NotationName : STRING; + END; + + TNotationDef = CLASS (TNvpNode) // Represents a <!NOTATION Definition. Value is the System ID + PublicId : STRING; + END; + + TCharset = SET OF CHAR; + + +CONST + CWhitespace = [#32, #9, #13, #10]; // Whitespace characters (XmlSpec 2.3) + CLetter = [#$41..#$5A, #$61..#$7A, #$C0..#$D6, #$D8..#$F6, #$F8..#$FF]; + CDigit = [#$30..#$39]; + CNameChar = CLetter + CDigit + ['.', '-', '_', ':', #$B7]; + CNameStart = CLetter + ['_', ':']; + CQuoteChar = ['"', '''']; + CPubidChar = [#32, ^M, ^J, #9, 'a'..'z', 'A'..'Z', '0'..'9', + '-', '''', '(', ')', '+', ',', '.', '/', ':', + '=', '?', ';', '!', '*', '#', '@', '$', '_', '%']; + + CDStart = '<![CDATA['; + CDEnd = ']]>'; + + // --- Name Constants for the above enumeration types + CPartType_Name : ARRAY [TPartType] OF STRING = + ('', 'XML Prolog', 'Comment', 'PI', + 'DTD Declaration', 'Start Tag', 'Empty Tag', 'End Tag', + 'Text', 'CDATA'); + CValueType_Name : ARRAY [TValueType] OF STRING = ('Normal', 'Implied', 'Fixed', 'Default'); + CAttrDefault_Name : ARRAY [TAttrDefault] OF STRING = ('Default', 'Required', 'Implied', 'Fixed'); + CElemType_Name : ARRAY [TElemType] OF STRING = ('Empty', 'Any', 'Childs only', 'Mixed'); + CAttrType_Name : ARRAY [TAttrType] OF STRING = ('Unknown', 'CDATA', + 'ID', 'IDREF', 'IDREFS', + 'ENTITY', 'ENTITIES', + 'NMTOKEN', 'NMTOKENS', + 'Notation', 'Enumeration'); + +FUNCTION ConvertWs (Source: STRING; PackWs: BOOLEAN) : STRING; // Convert WS to spaces #x20 +PROCEDURE SetStringSF (VAR S : STRING; BufferStart, BufferFinal : PChar); // SetString by Start/Final of buffer +FUNCTION StrSFPas (Start, Finish : PChar) : STRING; // Convert buffer part to Pascal string +FUNCTION TrimWs (Source : STRING) : STRING; // Trim Whitespace + +FUNCTION AnsiToUtf8 (Source : ANSISTRING) : STRING; // Convert Win-1252 to UTF-8 +FUNCTION Utf8ToAnsi (Source : STRING; UnknownChar : CHAR = '¿') : ANSISTRING; // Convert UTF-8 to Win-1252 + + +(* +=============================================================================================== +TCustomXmlScanner event based component wrapper for TXmlParser +=============================================================================================== +*) + +TYPE + TCustomXmlScanner = CLASS; + TXmlPrologEvent = PROCEDURE (Sender : TObject; XmlVersion, Encoding: STRING; Standalone : BOOLEAN) OF OBJECT; + TCommentEvent = PROCEDURE (Sender : TObject; Comment : STRING) OF OBJECT; + TPIEvent = PROCEDURE (Sender : TObject; Target, Content: STRING; Attributes : TAttrList) OF OBJECT; + TDtdEvent = PROCEDURE (Sender : TObject; RootElementName : STRING) OF OBJECT; + TStartTagEvent = PROCEDURE (Sender : TObject; TagName : STRING; Attributes : TAttrList) OF OBJECT; + TEndTagEvent = PROCEDURE (Sender : TObject; TagName : STRING) OF OBJECT; + TContentEvent = PROCEDURE (Sender : TObject; Content : STRING) OF OBJECT; + TElementEvent = PROCEDURE (Sender : TObject; ElemDef : TElemDef) OF OBJECT; + TEntityEvent = PROCEDURE (Sender : TObject; EntityDef : TEntityDef) OF OBJECT; + TNotationEvent = PROCEDURE (Sender : TObject; NotationDef : TNotationDef) OF OBJECT; + TErrorEvent = PROCEDURE (Sender : TObject; ErrorPos : PChar) OF OBJECT; + TExternalEvent = PROCEDURE (Sender : TObject; SystemId, PublicId, NotationId : STRING; + VAR Result : TXmlParser) OF OBJECT; + TEncodingEvent = FUNCTION (Sender : TObject; CurrentEncoding, Source : STRING) : STRING OF OBJECT; + + + TCustomXmlScanner = CLASS (TComponent) + PROTECTED + FXmlParser : TXmlParser; + FOnXmlProlog : TXmlPrologEvent; + FOnComment : TCommentEvent; + FOnPI : TPIEvent; + FOnDtdRead : TDtdEvent; + FOnStartTag : TStartTagEvent; + FOnEmptyTag : TStartTagEvent; + FOnEndTag : TEndTagEvent; + FOnContent : TContentEvent; + FOnCData : TContentEvent; + FOnElement : TElementEvent; + FOnAttList : TElementEvent; + FOnEntity : TEntityEvent; + FOnNotation : TNotationEvent; + FOnDtdError : TErrorEvent; + FOnLoadExternal : TExternalEvent; + FOnTranslateEncoding : TEncodingEvent; + FStopParser : BOOLEAN; + FUNCTION GetNormalize : BOOLEAN; + PROCEDURE SetNormalize (Value : BOOLEAN); + + PROCEDURE WhenXmlProlog(XmlVersion, Encoding: STRING; Standalone : BOOLEAN); VIRTUAL; + PROCEDURE WhenComment (Comment : STRING); VIRTUAL; + PROCEDURE WhenPI (Target, Content: STRING; Attributes : TAttrList); VIRTUAL; + PROCEDURE WhenDtdRead (RootElementName : STRING); VIRTUAL; + PROCEDURE WhenStartTag (TagName : STRING; Attributes : TAttrList); VIRTUAL; + PROCEDURE WhenEmptyTag (TagName : STRING; Attributes : TAttrList); VIRTUAL; + PROCEDURE WhenEndTag (TagName : STRING); VIRTUAL; + PROCEDURE WhenContent (Content : STRING); VIRTUAL; + PROCEDURE WhenCData (Content : STRING); VIRTUAL; + PROCEDURE WhenElement (ElemDef : TElemDef); VIRTUAL; + PROCEDURE WhenAttList (ElemDef : TElemDef); VIRTUAL; + PROCEDURE WhenEntity (EntityDef : TEntityDef); VIRTUAL; + PROCEDURE WhenNotation (NotationDef : TNotationDef); VIRTUAL; + PROCEDURE WhenDtdError (ErrorPos : PChar); VIRTUAL; + + PUBLIC + CONSTRUCTOR Create (AOwner: TComponent); OVERRIDE; + DESTRUCTOR Destroy; OVERRIDE; + + PROCEDURE LoadFromFile (Filename : TFilename); // Load XML Document from file + PROCEDURE LoadFromBuffer (Buffer : PChar); // Load XML Document from buffer + PROCEDURE SetBuffer (Buffer : PChar); // Refer to Buffer + FUNCTION GetFilename : TFilename; + + PROCEDURE Execute; // Perform scanning + + PROTECTED + PROPERTY XmlParser : TXmlParser READ FXmlParser; + PROPERTY StopParser : BOOLEAN READ FStopParser WRITE FStopParser; + PROPERTY Filename : TFilename READ GetFilename WRITE LoadFromFile; + PROPERTY Normalize : BOOLEAN READ GetNormalize WRITE SetNormalize; + PROPERTY OnXmlProlog : TXmlPrologEvent READ FOnXmlProlog WRITE FOnXmlProlog; + PROPERTY OnComment : TCommentEvent READ FOnComment WRITE FOnComment; + PROPERTY OnPI : TPIEvent READ FOnPI WRITE FOnPI; + PROPERTY OnDtdRead : TDtdEvent READ FOnDtdRead WRITE FOnDtdRead; + PROPERTY OnStartTag : TStartTagEvent READ FOnStartTag WRITE FOnStartTag; + PROPERTY OnEmptyTag : TStartTagEvent READ FOnEmptyTag WRITE FOnEmptyTag; + PROPERTY OnEndTag : TEndTagEvent READ FOnEndTag WRITE FOnEndTag; + PROPERTY OnContent : TContentEvent READ FOnContent WRITE FOnContent; + PROPERTY OnCData : TContentEvent READ FOnCData WRITE FOnCData; + PROPERTY OnElement : TElementEvent READ FOnElement WRITE FOnElement; + PROPERTY OnAttList : TElementEvent READ FOnAttList WRITE FOnAttList; + PROPERTY OnEntity : TEntityEvent READ FOnEntity WRITE FOnEntity; + PROPERTY OnNotation : TNotationEvent READ FOnNotation WRITE FOnNotation; + PROPERTY OnDtdError : TErrorEvent READ FOnDtdError WRITE FOnDtdError; + PROPERTY OnLoadExternal : TExternalEvent READ FOnLoadExternal WRITE FOnLoadExternal; + PROPERTY OnTranslateEncoding : TEncodingEvent READ FOnTranslateEncoding WRITE FOnTranslateEncoding; + END; + +(* +=============================================================================================== +IMPLEMENTATION +=============================================================================================== +*) + +IMPLEMENTATION + + +(* +=============================================================================================== +Unicode and UTF-8 stuff +=============================================================================================== +*) + +CONST + // --- Character Translation Table for Unicode <-> Win-1252 + WIN1252_UNICODE : ARRAY [$00..$FF] OF WORD = ( + $0000, $0001, $0002, $0003, $0004, $0005, $0006, $0007, $0008, $0009, + $000A, $000B, $000C, $000D, $000E, $000F, $0010, $0011, $0012, $0013, + $0014, $0015, $0016, $0017, $0018, $0019, $001A, $001B, $001C, $001D, + $001E, $001F, $0020, $0021, $0022, $0023, $0024, $0025, $0026, $0027, + $0028, $0029, $002A, $002B, $002C, $002D, $002E, $002F, $0030, $0031, + $0032, $0033, $0034, $0035, $0036, $0037, $0038, $0039, $003A, $003B, + $003C, $003D, $003E, $003F, $0040, $0041, $0042, $0043, $0044, $0045, + $0046, $0047, $0048, $0049, $004A, $004B, $004C, $004D, $004E, $004F, + $0050, $0051, $0052, $0053, $0054, $0055, $0056, $0057, $0058, $0059, + $005A, $005B, $005C, $005D, $005E, $005F, $0060, $0061, $0062, $0063, + $0064, $0065, $0066, $0067, $0068, $0069, $006A, $006B, $006C, $006D, + $006E, $006F, $0070, $0071, $0072, $0073, $0074, $0075, $0076, $0077, + $0078, $0079, $007A, $007B, $007C, $007D, $007E, $007F, + + $20AC, $0081, $201A, $0192, $201E, $2026, $2020, $2021, $02C6, $2030, + $0160, $2039, $0152, $008D, $017D, $008F, $0090, $2018, $2019, $201C, + $201D, $2022, $2013, $2014, $02DC, $2122, $0161, $203A, $0153, $009D, + $017E, $0178, $00A0, $00A1, $00A2, $00A3, $00A4, $00A5, $00A6, $00A7, + $00A8, $00A9, $00AA, $00AB, $00AC, $00AD, $00AE, $00AF, $00B0, $00B1, + $00B2, $00B3, $00B4, $00B5, $00B6, $00B7, $00B8, $00B9, $00BA, $00BB, + $00BC, $00BD, $00BE, $00BF, $00C0, $00C1, $00C2, $00C3, $00C4, $00C5, + $00C6, $00C7, $00C8, $00C9, $00CA, $00CB, $00CC, $00CD, $00CE, $00CF, + $00D0, $00D1, $00D2, $00D3, $00D4, $00D5, $00D6, $00D7, $00D8, $00D9, + $00DA, $00DB, $00DC, $00DD, $00DE, $00DF, $00E0, $00E1, $00E2, $00E3, + $00E4, $00E5, $00E6, $00E7, $00E8, $00E9, $00EA, $00EB, $00EC, $00ED, + $00EE, $00EF, $00F0, $00F1, $00F2, $00F3, $00F4, $00F5, $00F6, $00F7, + $00F8, $00F9, $00FA, $00FB, $00FC, $00FD, $00FE, $00FF); + +(* UTF-8 (somewhat simplified) + ----- + Character Range Byte sequence + --------------- -------------------------- (x=Bits from original character) + $0000..$007F 0xxxxxxx + $0080..$07FF 110xxxxx 10xxxxxx + $8000..$FFFF 1110xxxx 10xxxxxx 10xxxxxx + + Example + -------- + Transforming the Unicode character U+00E4 LATIN SMALL LETTER A WITH DIAERESIS ("ä"): + + ISO-8859-1, Decimal 228 + Win1252, Hex $E4 + ANSI Bin 1110 0100 + abcd efgh + + UTF-8 Binary 1100xxab 10cdefgh + Binary 11000011 10100100 + Hex $C3 $A4 + Decimal 195 164 + ANSI Ã ¤ *) + + +FUNCTION AnsiToUtf8 (Source : ANSISTRING) : STRING; + (* Converts the given Windows ANSI (Win1252) String to UTF-8. *) +VAR + I : INTEGER; // Loop counter + U : WORD; // Current Unicode value + Len : INTEGER; // Current real length of "Result" string +BEGIN + SetLength (Result, Length (Source) * 3); // Worst case + Len := 0; + FOR I := 1 TO Length (Source) DO BEGIN + U := WIN1252_UNICODE [ORD (Source [I])]; + CASE U OF + $0000..$007F : BEGIN + INC (Len); + Result [Len] := CHR (U); + END; + $0080..$07FF : BEGIN + INC (Len); + Result [Len] := CHR ($C0 OR (U SHR 6)); + INC (Len); + Result [Len] := CHR ($80 OR (U AND $3F)); + END; + $0800..$FFFF : BEGIN + INC (Len); + Result [Len] := CHR ($E0 OR (U SHR 12)); + INC (Len); + Result [Len] := CHR ($80 OR ((U SHR 6) AND $3F)); + INC (Len); + Result [Len] := CHR ($80 OR (U AND $3F)); + END; + END; + END; + SetLength (Result, Len); +END; + + +FUNCTION Utf8ToAnsi (Source : STRING; UnknownChar : CHAR = '¿') : ANSISTRING; + (* Converts the given UTF-8 String to Windows ANSI (Win-1252). + If a character can not be converted, the "UnknownChar" is inserted. *) +VAR + SourceLen : INTEGER; // Length of Source string + I, K : INTEGER; + A : BYTE; // Current ANSI character value + U : WORD; + Ch : CHAR; // Dest char + Len : INTEGER; // Current real length of "Result" string +BEGIN + SourceLen := Length (Source); + SetLength (Result, SourceLen); // Enough room to live + Len := 0; + I := 1; + WHILE I <= SourceLen DO BEGIN + A := ORD (Source [I]); + IF A < $80 THEN BEGIN // Range $0000..$007F + INC (Len); + Result [Len] := Source [I]; + INC (I); + END + ELSE BEGIN // Determine U, Inc I + IF (A AND $E0 = $C0) AND (I < SourceLen) THEN BEGIN // Range $0080..$07FF + U := (WORD (A AND $1F) SHL 6) OR (ORD (Source [I+1]) AND $3F); + INC (I, 2); + END + ELSE IF (A AND $F0 = $E0) AND (I < SourceLen-1) THEN BEGIN // Range $0800..$FFFF + U := (WORD (A AND $0F) SHL 12) OR + (WORD (ORD (Source [I+1]) AND $3F) SHL 6) OR + ( ORD (Source [I+2]) AND $3F); + INC (I, 3); + END + ELSE BEGIN // Unknown/unsupported + INC (I); + FOR K := 7 DOWNTO 0 DO + IF A AND (1 SHL K) = 0 THEN BEGIN + INC (I, (A SHR (K+1))-1); + BREAK; + END; + U := WIN1252_UNICODE [ORD (UnknownChar)]; + END; + Ch := UnknownChar; // Retrieve ANSI char + FOR A := $00 TO $FF DO + IF WIN1252_UNICODE [A] = U THEN BEGIN + Ch := CHR (A); + BREAK; + END; + INC (Len); + Result [Len] := Ch; + END; + END; + SetLength (Result, Len); +END; + + +(* +=============================================================================================== +"Special" Helper Functions + +Don't ask me why. But including these functions makes the parser *DRAMATICALLY* faster +on my K6-233 machine. You can test it yourself just by commenting them out. +They do exactly the same as the Assembler routines defined in SysUtils. +(This is where you can see how great the Delphi compiler really is. The compiled code is +faster than hand-coded assembler!) +=============================================================================================== +--> Just move this line below the StrScan function --> *) + + +FUNCTION StrPos (CONST Str, SearchStr : PChar) : PChar; + // Same functionality as SysUtils.StrPos +VAR + First : CHAR; + Len : INTEGER; +BEGIN + First := SearchStr^; + Len := StrLen (SearchStr); + Result := Str; + REPEAT + IF Result^ = First THEN + IF StrLComp (Result, SearchStr, Len) = 0 THEN BREAK; + IF Result^ = #0 THEN BEGIN + Result := NIL; + BREAK; + END; + INC (Result); + UNTIL FALSE; +END; + + +FUNCTION StrScan (CONST Start : PChar; CONST Ch : CHAR) : PChar; + // Same functionality as SysUtils.StrScan +BEGIN + Result := Start; + WHILE Result^ <> Ch DO BEGIN + IF Result^ = #0 THEN BEGIN + Result := NIL; + EXIT; + END; + INC (Result); + END; +END; + + +(* +=============================================================================================== +Helper Functions +=============================================================================================== +*) + +FUNCTION DelChars (Source : STRING; CharsToDelete : TCharset) : STRING; + // Delete all "CharsToDelete" from the string +VAR + I : INTEGER; +BEGIN + Result := Source; + FOR I := Length (Result) DOWNTO 1 DO + IF Result [I] IN CharsToDelete THEN + Delete (Result, I, 1); +END; + + +FUNCTION TrimWs (Source : STRING) : STRING; + // Trimms off Whitespace characters from both ends of the string +VAR + I : INTEGER; +BEGIN + // --- Trim Left + I := 1; + WHILE (I <= Length (Source)) AND (Source [I] IN CWhitespace) DO + INC (I); + Result := Copy (Source, I, MaxInt); + + // --- Trim Right + I := Length (Result); + WHILE (I > 1) AND (Result [I] IN CWhitespace) DO + DEC (I); + Delete (Result, I+1, Length (Result)-I); +END; + + +FUNCTION ConvertWs (Source: STRING; PackWs: BOOLEAN) : STRING; + // Converts all Whitespace characters to the Space #x20 character + // If "PackWs" is true, contiguous Whitespace characters are packed to one +VAR + I : INTEGER; +BEGIN + Result := Source; + FOR I := Length (Result) DOWNTO 1 DO + IF (Result [I] IN CWhitespace) THEN + IF PackWs AND (I > 1) AND (Result [I-1] IN CWhitespace) + THEN Delete (Result, I, 1) + ELSE Result [I] := #32; +END; + + +PROCEDURE SetStringSF (VAR S : STRING; BufferStart, BufferFinal : PChar); +BEGIN + SetString (S, BufferStart, BufferFinal-BufferStart+1); +END; + + +FUNCTION StrLPas (Start : PChar; Len : INTEGER) : STRING; +BEGIN + SetString (Result, Start, Len); +END; + + +FUNCTION StrSFPas (Start, Finish : PChar) : STRING; +BEGIN + SetString (Result, Start, Finish-Start+1); +END; + + +FUNCTION StrScanE (CONST Source : PChar; CONST CharToScanFor : CHAR) : PChar; + // If "CharToScanFor" is not found, StrScanE returns the last char of the + // buffer instead of NIL +BEGIN + Result := StrScan (Source, CharToScanFor); + IF Result = NIL THEN + Result := StrEnd (Source)-1; +END; + + +PROCEDURE ExtractName (Start : PChar; Terminators : TCharset; VAR Final : PChar); + (* Extracts the complete Name beginning at "Start". + It is assumed that the name is contained in Markup, so the '>' character is + always a Termination. + Start: IN Pointer to first char of name. Is always considered to be valid + Terminators: IN Characters which terminate the name + Final: OUT Pointer to last char of name *) +BEGIN + Final := Start+1; + Include (Terminators, #0); + Include (Terminators, '>'); + WHILE NOT (Final^ IN Terminators) DO + INC (Final); + DEC (Final); +END; + + +PROCEDURE ExtractQuote (Start : PChar; VAR Content : STRING; VAR Final : PChar); + (* Extract a string which is contained in single or double Quotes. + Start: IN Pointer to opening quote + Content: OUT The quoted string + Final: OUT Pointer to closing quote *) +BEGIN + Final := StrScan (Start+1, Start^); + IF Final = NIL THEN BEGIN + Final := StrEnd (Start+1)-1; + SetString (Content, Start+1, Final-Start); + END + ELSE + SetString (Content, Start+1, Final-1-Start); +END; + + +(* +=============================================================================================== +TEntityStackNode +This Node is pushed to the "Entity Stack" whenever the parser parses entity replacement text. +The "Instance" field holds the Instance pointer of an External Entity buffer. When it is +popped, the Instance is freed. +The "Encoding" field holds the name of the Encoding. External Parsed Entities may have +another encoding as the document entity (XmlSpec 4.3.3). So when there is an "<?xml" PI +found in the stream (= Text Declaration at the beginning of external parsed entities), the +Encoding found there is used for the External Entity (is assigned to TXmlParser.CurEncoding) +Default Encoding is for the Document Entity is UTF-8. It is assumed that External Entities +have the same Encoding as the Document Entity, unless they carry a Text Declaration. +=============================================================================================== +*) + +TYPE + TEntityStackNode = CLASS + Instance : TObject; + Encoding : STRING; + LastPos : PChar; + END; + +(* +=============================================================================================== +TEntityStack +For nesting of Entities. +When there is an entity reference found in the data stream, the corresponding entity +definition is searched and the current position is pushed to this stack. +From then on, the program scans the entitiy replacement text as if it were normal content. +When the parser reaches the end of an entity, the current position is popped off the +stack again. +=============================================================================================== +*) + +CONSTRUCTOR TEntityStack.Create (TheOwner : TXmlParser); +BEGIN + INHERITED Create; + Owner := TheOwner; +END; + + +PROCEDURE TEntityStack.Push (LastPos : PChar); +BEGIN + Push (NIL, LastPos); +END; + + +PROCEDURE TEntityStack.Push (Instance : TObject; LastPos : PChar); +VAR + ESN : TEntityStackNode; +BEGIN + ESN := TEntityStackNode.Create; + ESN.Instance := Instance; + ESN.Encoding := Owner.FCurEncoding; // Save current Encoding + ESN.LastPos := LastPos; + Add (ESN); +END; + + +FUNCTION TEntityStack.Pop : PChar; +VAR + ESN : TEntityStackNode; +BEGIN + IF Count > 0 THEN BEGIN + ESN := TEntityStackNode (Items [Count-1]); + Result := ESN.LastPos; + IF ESN.Instance <> NIL THEN + ESN.Instance.Free; + IF ESN.Encoding <> '' THEN + Owner.FCurEncoding := ESN.Encoding; // Restore current Encoding + Delete (Count-1); + END + ELSE + Result := NIL; +END; + + +(* +=============================================================================================== +TExternalID +----------- +XmlSpec 4.2.2: ExternalID ::= 'SYSTEM' S SystemLiteral | + 'PUBLIC' S PubidLiteral S SystemLiteral +XmlSpec 4.7: PublicID ::= 'PUBLIC' S PubidLiteral +SystemLiteral and PubidLiteral are quoted +=============================================================================================== +*) + +TYPE + TExternalID = CLASS + PublicId : STRING; + SystemId : STRING; + Final : PChar; + CONSTRUCTOR Create (Start : PChar); + END; + +CONSTRUCTOR TExternalID.Create (Start : PChar); +BEGIN + INHERITED Create; + Final := Start; + IF StrLComp (Start, 'SYSTEM', 6) = 0 THEN BEGIN + WHILE NOT (Final^ IN (CQuoteChar + [#0, '>', '['])) DO INC (Final); + IF NOT (Final^ IN CQuoteChar) THEN EXIT; + ExtractQuote (Final, SystemID, Final); + END + ELSE IF StrLComp (Start, 'PUBLIC', 6) = 0 THEN BEGIN + WHILE NOT (Final^ IN (CQuoteChar + [#0, '>', '['])) DO INC (Final); + IF NOT (Final^ IN CQuoteChar) THEN EXIT; + ExtractQuote (Final, PublicID, Final); + INC (Final); + WHILE NOT (Final^ IN (CQuoteChar + [#0, '>', '['])) DO INC (Final); + IF NOT (Final^ IN CQuoteChar) THEN EXIT; + ExtractQuote (Final, SystemID, Final); + END; +END; + + +(* +=============================================================================================== +TXmlParser +=============================================================================================== +*) + +CONSTRUCTOR TXmlParser.Create; +BEGIN + INHERITED Create; + FBuffer := NIL; + FBufferSize := 0; + Elements := TElemList.Create; + Entities := TNvpList.Create; + ParEntities := TNvpList.Create; + Notations := TNvpList.Create; + CurAttr := TAttrList.Create; + EntityStack := TEntityStack.Create (Self); + Clear; +END; + + +DESTRUCTOR TXmlParser.Destroy; +BEGIN + Clear; + Elements.Free; + Entities.Free; + ParEntities.Free; + Notations.Free; + CurAttr.Free; + EntityStack.Free; + INHERITED Destroy; +END; + + +PROCEDURE TXmlParser.Clear; + // Free Buffer and clear all object attributes +BEGIN + IF (FBufferSize > 0) AND (FBuffer <> NIL) THEN + FreeMem (FBuffer); + FBuffer := NIL; + FBufferSize := 0; + FSource := ''; + FXmlVersion := ''; + FEncoding := ''; + FStandalone := FALSE; + FRootName := ''; + FDtdcFinal := NIL; + FNormalize := TRUE; + Elements.Clear; + Entities.Clear; + ParEntities.Clear; + Notations.Clear; + CurAttr.Clear; + EntityStack.Clear; +END; + + +FUNCTION TXmlParser.LoadFromFile (Filename : STRING; FileMode : INTEGER = fmOpenRead OR fmShareDenyNone) : BOOLEAN; + // Loads Document from given file + // Returns TRUE if successful +VAR + f : FILE; + ReadIn : INTEGER; + OldFileMode : INTEGER; +BEGIN + Result := FALSE; + Clear; + + // --- Open File + OldFileMode := SYSTEM.FileMode; + TRY + SYSTEM.FileMode := FileMode; + TRY + AssignFile (f, Filename); + Reset (f, 1); + EXCEPT + EXIT; + END; + + TRY + // --- Allocate Memory + TRY + FBufferSize := Filesize (f) + 1; + GetMem (FBuffer, FBufferSize); + EXCEPT + Clear; + EXIT; + END; + + // --- Read File + TRY + BlockRead (f, FBuffer^, FBufferSize, ReadIn); + (FBuffer+ReadIn)^ := #0; // NULL termination + EXCEPT + Clear; + EXIT; + END; + FINALLY + CloseFile (f); + END; + + FSource := Filename; + Result := TRUE; + + FINALLY + SYSTEM.FileMode := OldFileMode; + END; +END; + + +FUNCTION TXmlParser.LoadFromBuffer (Buffer : PChar) : BOOLEAN; + // Loads Document from another buffer + // Returns TRUE if successful + // The "Source" property becomes '<MEM>' if successful +BEGIN + Result := FALSE; + Clear; + FBufferSize := StrLen (Buffer) + 1; + TRY + GetMem (FBuffer, FBufferSize); + EXCEPT + Clear; + EXIT; + END; + StrCopy (FBuffer, Buffer); + FSource := '<MEM>'; + Result := TRUE; +END; + + +PROCEDURE TXmlParser.SetBuffer (Buffer : PChar); // References another buffer +BEGIN + Clear; + FBuffer := Buffer; + FBufferSize := 0; + FSource := '<REFERENCE>'; +END; + + +//----------------------------------------------------------------------------------------------- +// Scanning through the document +//----------------------------------------------------------------------------------------------- + +PROCEDURE TXmlParser.StartScan; +BEGIN + CurPartType := ptNone; + CurName := ''; + CurContent := ''; + CurStart := NIL; + CurFinal := NIL; + CurAttr.Clear; + EntityStack.Clear; +END; + + +FUNCTION TXmlParser.Scan : BOOLEAN; + // Scans the next Part + // Returns TRUE if a part could be found, FALSE if there is no part any more + // + // "IsDone" can be set to FALSE by AnalyzeText in order to go to the next part + // if there is no Content due to normalization +VAR + IsDone : BOOLEAN; +BEGIN + REPEAT + IsDone := TRUE; + + // --- Start of next Part + IF CurStart = NIL + THEN CurStart := DocBuffer + ELSE CurStart := CurFinal+1; + CurFinal := CurStart; + + // --- End of Document of Pop off a new part from the Entity stack? + IF CurStart^ = #0 THEN + CurStart := EntityStack.Pop; + + // --- No Document or End Of Document: Terminate Scan + IF (CurStart = NIL) OR (CurStart^ = #0) THEN BEGIN + CurStart := StrEnd (DocBuffer); + CurFinal := CurStart-1; + EntityStack.Clear; + Result := FALSE; + EXIT; + END; + + IF (StrLComp (CurStart, '<?xml', 5) = 0) AND + ((CurStart+5)^ IN CWhitespace) THEN AnalyzeProlog // XML Declaration, Text Declaration + ELSE IF StrLComp (CurStart, '<?', 2) = 0 THEN AnalyzePI (CurStart, CurFinal) // PI + ELSE IF StrLComp (CurStart, '<!--', 4) = 0 THEN AnalyzeComment (CurStart, CurFinal) // Comment + ELSE IF StrLComp (CurStart, '<!DOCTYPE', 9) = 0 THEN AnalyzeDtdc // DTDc + ELSE IF StrLComp (CurStart, CDStart, Length (CDStart)) = 0 THEN AnalyzeCdata // CDATA Section + ELSE IF StrLComp (CurStart, '<', 1) = 0 THEN AnalyzeTag // Start-Tag, End-Tag, Empty-Element-Tag + ELSE AnalyzeText (IsDone); // Text Content + UNTIL IsDone; + Result := TRUE; +END; + + +PROCEDURE TXmlParser.AnalyzeProlog; + // Analyze XML Prolog or Text Declaration +VAR + F : PChar; +BEGIN + CurAttr.Analyze (CurStart+5, F); + IF EntityStack.Count = 0 THEN BEGIN + FXmlVersion := CurAttr.Value ('version'); + FEncoding := CurAttr.Value ('encoding'); + FStandalone := CurAttr.Value ('standalone') = 'yes'; + END; + CurFinal := StrPos (F, '?>'); + IF CurFinal <> NIL + THEN INC (CurFinal) + ELSE CurFinal := StrEnd (CurStart)-1; + FCurEncoding := AnsiUpperCase (CurAttr.Value ('encoding')); + IF FCurEncoding = '' THEN + FCurEncoding := 'UTF-8'; // Default XML Encoding is UTF-8 + CurPartType := ptXmlProlog; + CurName := ''; + CurContent := ''; +END; + + +PROCEDURE TXmlParser.AnalyzeComment (Start : PChar; VAR Final : PChar); + // Analyze Comments +BEGIN + Final := StrPos (Start+4, '-->'); + IF Final = NIL + THEN Final := StrEnd (Start)-1 + ELSE INC (Final, 2); + CurPartType := ptComment; +END; + + +PROCEDURE TXmlParser.AnalyzePI (Start : PChar; VAR Final : PChar); + // Analyze Processing Instructions (PI) + // This is also called for Character +VAR + F : PChar; +BEGIN + CurPartType := ptPI; + Final := StrPos (Start+2, '?>'); + IF Final = NIL + THEN Final := StrEnd (Start)-1 + ELSE INC (Final); + ExtractName (Start+2, CWhitespace + ['?', '>'], F); + SetStringSF (CurName, Start+2, F); + SetStringSF (CurContent, F+1, Final-2); + CurAttr.Analyze (F+1, F); +END; + + +PROCEDURE TXmlParser.AnalyzeDtdc; + (* Analyze Document Type Declaration + doctypedecl ::= '<!DOCTYPE' S Name (S ExternalID)? S? ('[' (markupdecl | PEReference | S)* ']' S?)? '>' + markupdecl ::= elementdecl | AttlistDecl | EntityDecl | NotationDecl | PI | Comment + PEReference ::= '%' Name ';' + + elementdecl ::= '<!ELEMENT' S Name S contentspec S? '>' + AttlistDecl ::= '<!ATTLIST' S Name AttDef* S? '>' + EntityDecl ::= '<!ENTITY' S Name S EntityDef S? '>' | + '<!ENTITY' S '%' S Name S PEDef S? '>' + NotationDecl ::= '<!NOTATION' S Name S (ExternalID | PublicID) S? '>' + PI ::= '<?' PITarget (S (Char* - (Char* '?>' Char* )))? '?>' + Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->' *) +TYPE + TPhase = (phName, phDtd, phInternal, phFinishing); +VAR + Phase : TPhase; + F : PChar; + ExternalID : TExternalID; + ExternalDTD : TXmlParser; + DER : TDtdElementRec; +BEGIN + DER.Start := CurStart; + EntityStack.Clear; // Clear stack for Parameter Entities + CurPartType := ptDtdc; + + // --- Don't read DTDc twice + IF FDtdcFinal <> NIL THEN BEGIN + CurFinal := FDtdcFinal; + EXIT; + END; + + // --- Scan DTDc + CurFinal := CurStart + 9; // First char after '<!DOCTYPE' + Phase := phName; + REPEAT + CASE CurFinal^ OF + '%' : BEGIN + PushPE (CurFinal); + CONTINUE; + END; + #0 : IF EntityStack.Count = 0 THEN + BREAK + ELSE BEGIN + CurFinal := EntityStack.Pop; + CONTINUE; + END; + '[' : BEGIN + Phase := phInternal; + AnalyzeDtdElements (CurFinal+1, CurFinal); + CONTINUE; + END; + ']' : Phase := phFinishing; + '>' : BREAK; + ELSE IF NOT (CurFinal^ IN CWhitespace) THEN BEGIN + CASE Phase OF + phName : IF (CurFinal^ IN CNameStart) THEN BEGIN + ExtractName (CurFinal, CWhitespace + ['[', '>'], F); + SetStringSF (FRootName, CurFinal, F); + CurFinal := F; + Phase := phDtd; + END; + phDtd : IF (StrLComp (CurFinal, 'SYSTEM', 6) = 0) OR + (StrLComp (CurFinal, 'PUBLIC', 6) = 0) THEN BEGIN + ExternalID := TExternalID.Create (CurFinal); + ExternalDTD := LoadExternalEntity (ExternalId.SystemId, ExternalID.PublicId, ''); + F := StrPos (ExternalDtd.DocBuffer, '<!'); + IF F <> NIL THEN + AnalyzeDtdElements (F, F); + ExternalDTD.Free; + CurFinal := ExternalID.Final; + ExternalID.Free; + END; + ELSE BEGIN + DER.ElementType := deError; + DER.Pos := CurFinal; + DER.Final := CurFinal; + DtdElementFound (DER); + END; + END; + + END; + END; + INC (CurFinal); + UNTIL FALSE; + + CurPartType := ptDtdc; + CurName := ''; + CurContent := ''; + + // It is an error in the document if "EntityStack" is not empty now + IF EntityStack.Count > 0 THEN BEGIN + DER.ElementType := deError; + DER.Final := CurFinal; + DER.Pos := CurFinal; + DtdElementFound (DER); + END; + + EntityStack.Clear; // Clear stack for General Entities + FDtdcFinal := CurFinal; +END; + + +PROCEDURE TXmlParser.AnalyzeDtdElements (Start : PChar; VAR Final : PChar); + // Analyze the "Elements" of a DTD contained in the external or + // internal DTD subset. +VAR + DER : TDtdElementRec; +BEGIN + Final := Start; + REPEAT + CASE Final^ OF + '%' : BEGIN + PushPE (Final); + CONTINUE; + END; + #0 : IF EntityStack.Count = 0 THEN + BREAK + ELSE BEGIN + CurFinal := EntityStack.Pop; + CONTINUE; + END; + ']', + '>' : BREAK; + '<' : IF StrLComp (Final, '<!ELEMENT', 9) = 0 THEN AnalyzeElementDecl (Final, Final) + ELSE IF StrLComp (Final, '<!ATTLIST', 9) = 0 THEN AnalyzeAttListDecl (Final, Final) + ELSE IF StrLComp (Final, '<!ENTITY', 8) = 0 THEN AnalyzeEntityDecl (Final, Final) + ELSE IF StrLComp (Final, '<!NOTATION', 10) = 0 THEN AnalyzeNotationDecl (Final, Final) + ELSE IF StrLComp (Final, '<?', 2) = 0 THEN BEGIN // PI in DTD + DER.ElementType := dePI; + DER.Start := Final; + AnalyzePI (Final, Final); + DER.Target := PChar (CurName); + DER.Content := PChar (CurContent); + DER.AttrList := CurAttr; + DER.Final := Final; + DtdElementFound (DER); + END + ELSE IF StrLComp (Final, '<!--', 4) = 0 THEN BEGIN // Comment in DTD + DER.ElementType := deComment; + DER.Start := Final; + AnalyzeComment (Final, Final); + DER.Final := Final; + DtdElementFound (DER); + END + ELSE BEGIN + DER.ElementType := deError; + DER.Start := Final; + DER.Pos := Final; + DER.Final := Final; + DtdElementFound (DER); + END; + + END; + INC (Final); + UNTIL FALSE; +END; + + +PROCEDURE TXmlParser.AnalyzeTag; + // Analyze Tags +VAR + S, F : PChar; + Attr : TAttr; + ElemDef : TElemDef; + AttrDef : TAttrDef; + I : INTEGER; +BEGIN + CurPartType := ptStartTag; + S := CurStart+1; + IF S^ = '/' THEN BEGIN + CurPartType := ptEndTag; + INC (S); + END; + ExtractName (S, CWhitespace + ['/'], F); + SetStringSF (CurName, S, F); + CurAttr.Analyze (F+1, CurFinal); + IF CurFinal^ = '/' THEN BEGIN + CurPartType := ptEmptyTag; + END; + CurFinal := StrScanE (CurFinal, '>'); + + // --- Set Default Attribute values for nonexistent attributes + IF (CurPartType = ptStartTag) OR (CurPartType = ptEmptyTag) THEN BEGIN + ElemDef := Elements.Node (CurName); + IF ElemDef <> NIL THEN BEGIN + FOR I := 0 TO ElemDef.Count-1 DO BEGIN + AttrDef := TAttrDef (ElemDef [I]); + Attr := TAttr (CurAttr.Node (AttrDef.Name)); + IF (Attr = NIL) AND (AttrDef.Value <> '') THEN BEGIN + Attr := TAttr.Create (AttrDef.Name, AttrDef.Value); + Attr.ValueType := vtDefault; + CurAttr.Add (Attr); + END; + IF Attr <> NIL THEN BEGIN + CASE AttrDef.DefaultType OF + adDefault : ; + adRequired : ; // -!- It is an error in the document if "Attr.Value" is an empty string + adImplied : Attr.ValueType := vtImplied; + adFixed : BEGIN + Attr.ValueType := vtFixed; + Attr.Value := AttrDef.Value; + END; + END; + Attr.AttrType := AttrDef.AttrType; + END; + END; + END; + + // --- Normalize Attribute Values. XmlSpec: + // - a character reference is processed by appending the referenced character to the attribute value + // - an entity reference is processed by recursively processing the replacement text of the entity + // - a whitespace character (#x20, #xD, #xA, #x9) is processed by appending #x20 to the normalized value, + // except that only a single #x20 is appended for a "#xD#xA" sequence that is part of an external + // parsed entity or the literal entity value of an internal parsed entity + // - other characters are processed by appending them to the normalized value + // If the declared value is not CDATA, then the XML processor must further process the + // normalized attribute value by discarding any leading and trailing space (#x20) characters, + // and by replacing sequences of space (#x20) characters by a single space (#x20) character. + // All attributes for which no declaration has been read should be treated by a + // non-validating parser as if declared CDATA. + // !!! The XML 1.0 SE specification is somewhat different here + // This code does not conform exactly to this specification + FOR I := 0 TO CurAttr.Count-1 DO + WITH TAttr (CurAttr [I]) DO BEGIN + ReplaceGeneralEntities (Value); + ReplaceCharacterEntities (Value); + IF (AttrType <> atCData) AND (AttrType <> atUnknown) + THEN Value := TranslateEncoding (TrimWs (ConvertWs (Value, TRUE))) + ELSE Value := TranslateEncoding (ConvertWs (Value, FALSE)); + END; + END; +END; + + +PROCEDURE TXmlParser.AnalyzeCData; + // Analyze CDATA Sections +BEGIN + CurPartType := ptCData; + CurFinal := StrPos (CurStart, CDEnd); + IF CurFinal = NIL THEN BEGIN + CurFinal := StrEnd (CurStart)-1; + CurContent := TranslateEncoding (StrPas (CurStart+Length (CDStart))); + END + ELSE BEGIN + SetStringSF (CurContent, CurStart+Length (CDStart), CurFinal-1); + INC (CurFinal, Length (CDEnd)-1); + CurContent := TranslateEncoding (CurContent); + END; +END; + + +PROCEDURE TXmlParser.AnalyzeText (VAR IsDone : BOOLEAN); + (* Analyzes Text Content between Tags. CurFinal will point to the last content character. + Content ends at a '<' character or at the end of the document. + Entity References and Character Entity references are resolved. + If PackSpaces is TRUE, contiguous Whitespace Characters will be compressed to + one Space #x20 character, Whitespace at the beginning and end of content will + be trimmed off and content which is or becomes empty is not returned to + the application (in this case, "IsDone" is set to FALSE which causes the + Scan method to proceed directly to the next part. *) + + PROCEDURE ProcessEntity; + (* Is called if there is an ampsersand '&' character found in the document. + IN "CurFinal" points to the ampersand + OUT "CurFinal" points to the first character after the semi-colon ';' *) + VAR + P : PChar; + Name : STRING; + EntityDef : TEntityDef; + ExternalEntity : TXmlParser; + BEGIN + P := StrScan (CurFinal , ';'); + IF P <> NIL THEN BEGIN + SetStringSF (Name, CurFinal+1, P-1); + + // Is it a Character Entity? + IF (CurFinal+1)^ = '#' THEN BEGIN + IF UpCase ((CurFinal+2)^) = 'X' // !!! Can't use "CHR" for Unicode characters > 255: + THEN CurContent := CurContent + CHR (StrToIntDef ('$'+Copy (Name, 3, MaxInt), 32)) + ELSE CurContent := CurContent + CHR (StrToIntDef (Copy (Name, 2, MaxInt), 32)); + CurFinal := P+1; + EXIT; + END + + // Is it a Predefined Entity? + ELSE IF Name = 'lt' THEN BEGIN CurContent := CurContent + '<'; CurFinal := P+1; EXIT; END + ELSE IF Name = 'gt' THEN BEGIN CurContent := CurContent + '>'; CurFinal := P+1; EXIT; END + ELSE IF Name = 'amp' THEN BEGIN CurContent := CurContent + '&'; CurFinal := P+1; EXIT; END + ELSE IF Name = 'apos' THEN BEGIN CurContent := CurContent + ''''; CurFinal := P+1; EXIT; END + ELSE IF Name = 'quot' THEN BEGIN CurContent := CurContent + '"'; CurFinal := P+1; EXIT; END; + + // Replace with Entity from DTD + EntityDef := TEntityDef (Entities.Node (Name)); + IF EntityDef <> NIL THEN BEGIN + IF EntityDef.Value <> '' THEN BEGIN + EntityStack.Push (P+1); + CurFinal := PChar (EntityDef.Value); + END + ELSE BEGIN + ExternalEntity := LoadExternalEntity (EntityDef.SystemId, EntityDef.PublicId, EntityDef.NotationName); + EntityStack.Push (ExternalEntity, P+1); + CurFinal := ExternalEntity.DocBuffer; + END; + END + ELSE BEGIN + CurContent := CurContent + Name; + CurFinal := P+1; + END; + END + ELSE BEGIN + INC (CurFinal); + END; + END; + +VAR + C : INTEGER; +BEGIN + CurFinal := CurStart; + CurPartType := ptContent; + CurContent := ''; + C := 0; + REPEAT + CASE CurFinal^ OF + '&' : BEGIN + CurContent := CurContent + TranslateEncoding (StrLPas (CurFinal-C, C)); + C := 0; + ProcessEntity; + CONTINUE; + END; + #0 : BEGIN + IF EntityStack.Count = 0 THEN + BREAK + ELSE BEGIN + CurContent := CurContent + TranslateEncoding (StrLPas (CurFinal-C, C)); + C := 0; + CurFinal := EntityStack.Pop; + CONTINUE; + END; + END; + '<' : BREAK; + ELSE INC (C); + END; + INC (CurFinal); + UNTIL FALSE; + CurContent := CurContent + TranslateEncoding (StrLPas (CurFinal-C, C)); + DEC (CurFinal); + + IF FNormalize THEN BEGIN + CurContent := ConvertWs (TrimWs (CurContent), TRUE); + IsDone := CurContent <> ''; // IsDone will only get FALSE if PackSpaces is TRUE + END; +END; + + +PROCEDURE TXmlParser.AnalyzeElementDecl (Start : PChar; VAR Final : PChar); + (* Parse <!ELEMENT declaration starting at "Start" + Final must point to the terminating '>' character + XmlSpec 3.2: + elementdecl ::= '<!ELEMENT' S Name S contentspec S? '>' + contentspec ::= 'EMPTY' | 'ANY' | Mixed | children + Mixed ::= '(' S? '#PCDATA' (S? '|' S? Name)* S? ')*' | + '(' S? '#PCDATA' S? ')' + children ::= (choice | seq) ('?' | '*' | '+')? + choice ::= '(' S? cp ( S? '|' S? cp )* S? ')' + cp ::= (Name | choice | seq) ('?' | '*' | '+')? + seq ::= '(' S? cp ( S? ',' S? cp )* S? ')' + + More simply: + contentspec ::= EMPTY + ANY + '(#PCDATA)' + '(#PCDATA | A | B)*' + '(A, B, C)' + '(A | B | C)' + '(A?, B*, C+), + '(A, (B | C | D)* )' *) +VAR + Element : TElemDef; + Elem2 : TElemDef; + F : PChar; + DER : TDtdElementRec; +BEGIN + Element := TElemDef.Create; + Final := Start + 9; + DER.Start := Start; + REPEAT + IF Final^ = '>' THEN BREAK; + IF (Final^ IN CNameStart) AND (Element.Name = '') THEN BEGIN + ExtractName (Final, CWhitespace, F); + SetStringSF (Element.Name, Final, F); + Final := F; + F := StrScan (Final+1, '>'); + IF F = NIL THEN BEGIN + Element.Definition := STRING (Final); + Final := StrEnd (Final); + BREAK; + END + ELSE BEGIN + SetStringSF (Element.Definition, Final+1, F-1); + Final := F; + BREAK; + END; + END; + INC (Final); + UNTIL FALSE; + Element.Definition := DelChars (Element.Definition, CWhitespace); + ReplaceParameterEntities (Element.Definition); + IF Element.Definition = 'EMPTY' THEN Element.ElemType := etEmpty + ELSE IF Element.Definition = 'ANY' THEN Element.ElemType := etAny + ELSE IF Copy (Element.Definition, 1, 8) = '(#PCDATA' THEN Element.ElemType := etMixed + ELSE IF Copy (Element.Definition, 1, 1) = '(' THEN Element.ElemType := etChildren + ELSE Element.ElemType := etAny; + + Elem2 := Elements.Node (Element.Name); + IF Elem2 <> NIL THEN + Elements.Delete (Elements.IndexOf (Elem2)); + Elements.Add (Element); + Final := StrScanE (Final, '>'); + DER.ElementType := deElement; + DER.ElemDef := Element; + DER.Final := Final; + DtdElementFound (DER); +END; + + +PROCEDURE TXmlParser.AnalyzeAttListDecl (Start : PChar; VAR Final : PChar); + (* Parse <!ATTLIST declaration starting at "Start" + Final must point to the terminating '>' character + XmlSpec 3.3: + AttlistDecl ::= '<!ATTLIST' S Name AttDef* S? '>' + AttDef ::= S Name S AttType S DefaultDecl + AttType ::= StringType | TokenizedType | EnumeratedType + StringType ::= 'CDATA' + TokenizedType ::= 'ID' | 'IDREF' | 'IDREFS' | 'ENTITY' | 'ENTITIES' | 'NMTOKEN' | 'NMTOKENS' + EnumeratedType ::= NotationType | Enumeration + NotationType ::= 'NOTATION' S '(' S? Name (S? '|' S? Name)* S? ')' + Enumeration ::= '(' S? Nmtoken (S? '|' S? Nmtoken)* S? ')' + DefaultDecl ::= '#REQUIRED' | '#IMPLIED' | (('#FIXED' S)? AttValue) + AttValue ::= '"' ([^<&"] | Reference)* '"' | "'" ([^<&'] | Reference)* "'" + Examples: + <!ATTLIST address + A1 CDATA "Default" + A2 ID #REQUIRED + A3 IDREF #IMPLIED + A4 IDREFS #IMPLIED + A5 ENTITY #FIXED "&at;ü" + A6 ENTITIES #REQUIRED + A7 NOTATION (WMF | DXF) "WMF" + A8 (A | B | C) #REQUIRED> *) +TYPE + TPhase = (phElementName, phName, phType, phNotationContent, phDefault); +VAR + Phase : TPhase; + F : PChar; + ElementName : STRING; + ElemDef : TElemDef; + AttrDef : TAttrDef; + AttrDef2 : TAttrDef; + Strg : STRING; + DER : TDtdElementRec; +BEGIN + Final := Start + 9; // The character after <!ATTLIST + Phase := phElementName; + DER.Start := Start; + AttrDef := NIL; + ElemDef := NIL; + REPEAT + IF NOT (Final^ IN CWhitespace) THEN + CASE Final^ OF + '%' : BEGIN + PushPE (Final); + CONTINUE; + END; + #0 : IF EntityStack.Count = 0 THEN + BREAK + ELSE BEGIN + Final := EntityStack.Pop; + CONTINUE; + END; + '>' : BREAK; + ELSE CASE Phase OF + phElementName : BEGIN + ExtractName (Final, CWhitespace + CQuoteChar + ['#'], F); + SetStringSF (ElementName, Final, F); + Final := F; + ElemDef := Elements.Node (ElementName); + IF ElemDef = NIL THEN BEGIN + ElemDef := TElemDef.Create; + ElemDef.Name := ElementName; + ElemDef.Definition := 'ANY'; + ElemDef.ElemType := etAny; + Elements.Add (ElemDef); + END; + Phase := phName; + END; + phName : BEGIN + AttrDef := TAttrDef.Create; + ExtractName (Final, CWhitespace + CQuoteChar + ['#'], F); + SetStringSF (AttrDef.Name, Final, F); + Final := F; + AttrDef2 := TAttrDef (ElemDef.Node (AttrDef.Name)); + IF AttrDef2 <> NIL THEN + ElemDef.Delete (ElemDef.IndexOf (AttrDef2)); + ElemDef.Add (AttrDef); + Phase := phType; + END; + phType : BEGIN + IF Final^ = '(' THEN BEGIN + F := StrScan (Final+1, ')'); + IF F <> NIL + THEN SetStringSF (AttrDef.TypeDef, Final+1, F-1) + ELSE AttrDef.TypeDef := STRING (Final+1); + AttrDef.TypeDef := DelChars (AttrDef.TypeDef, CWhitespace); + AttrDef.AttrType := atEnumeration; + ReplaceParameterEntities (AttrDef.TypeDef); + ReplaceCharacterEntities (AttrDef.TypeDef); + Phase := phDefault; + END + ELSE IF StrLComp (Final, 'NOTATION', 8) = 0 THEN BEGIN + INC (Final, 8); + AttrDef.AttrType := atNotation; + Phase := phNotationContent; + END + ELSE BEGIN + ExtractName (Final, CWhitespace+CQuoteChar+['#'], F); + SetStringSF (AttrDef.TypeDef, Final, F); + IF AttrDef.TypeDef = 'CDATA' THEN AttrDef.AttrType := atCData + ELSE IF AttrDef.TypeDef = 'ID' THEN AttrDef.AttrType := atId + ELSE IF AttrDef.TypeDef = 'IDREF' THEN AttrDef.AttrType := atIdRef + ELSE IF AttrDef.TypeDef = 'IDREFS' THEN AttrDef.AttrType := atIdRefs + ELSE IF AttrDef.TypeDef = 'ENTITY' THEN AttrDef.AttrType := atEntity + ELSE IF AttrDef.TypeDef = 'ENTITIES' THEN AttrDef.AttrType := atEntities + ELSE IF AttrDef.TypeDef = 'NMTOKEN' THEN AttrDef.AttrType := atNmToken + ELSE IF AttrDef.TypeDef = 'NMTOKENS' THEN AttrDef.AttrType := atNmTokens; + Phase := phDefault; + END + END; + phNotationContent : BEGIN + F := StrScan (Final, ')'); + IF F <> NIL THEN + SetStringSF (AttrDef.Notations, Final+1, F-1) + ELSE BEGIN + AttrDef.Notations := STRING (Final+1); + Final := StrEnd (Final); + END; + ReplaceParameterEntities (AttrDef.Notations); + AttrDef.Notations := DelChars (AttrDef.Notations, CWhitespace); + Phase := phDefault; + END; + phDefault : BEGIN + IF Final^ = '#' THEN BEGIN + ExtractName (Final, CWhiteSpace + CQuoteChar, F); + SetStringSF (Strg, Final, F); + Final := F; + ReplaceParameterEntities (Strg); + IF Strg = '#REQUIRED' THEN BEGIN AttrDef.DefaultType := adRequired; Phase := phName; END + ELSE IF Strg = '#IMPLIED' THEN BEGIN AttrDef.DefaultType := adImplied; Phase := phName; END + ELSE IF Strg = '#FIXED' THEN AttrDef.DefaultType := adFixed; + END + ELSE IF (Final^ IN CQuoteChar) THEN BEGIN + ExtractQuote (Final, AttrDef.Value, Final); + ReplaceParameterEntities (AttrDef.Value); + ReplaceCharacterEntities (AttrDef.Value); + Phase := phName; + END; + IF Phase = phName THEN BEGIN + AttrDef := NIL; + END; + END; + + END; + END; + INC (Final); + UNTIL FALSE; + + Final := StrScan (Final, '>'); + + DER.ElementType := deAttList; + DER.ElemDef := ElemDef; + DER.Final := Final; + DtdElementFound (DER); +END; + + +PROCEDURE TXmlParser.AnalyzeEntityDecl (Start : PChar; VAR Final : PChar); + (* Parse <!ENTITY declaration starting at "Start" + Final must point to the terminating '>' character + XmlSpec 4.2: + EntityDecl ::= '<!ENTITY' S Name S EntityDef S? '>' | + '<!ENTITY' S '%' S Name S PEDef S? '>' + EntityDef ::= EntityValue | (ExternalID NDataDecl?) + PEDef ::= EntityValue | ExternalID + NDataDecl ::= S 'NDATA' S Name + EntityValue ::= '"' ([^%&"] | PEReference | EntityRef | CharRef)* '"' | + "'" ([^%&'] | PEReference | EntityRef | CharRef)* "'" + PEReference ::= '%' Name ';' + + Examples + <!ENTITY test1 "Stefan Heymann"> <!-- Internal, general, parsed --> + <!ENTITY test2 SYSTEM "ent2.xml"> <!-- External, general, parsed --> + <!ENTITY test2 SYSTEM "ent3.gif" NDATA gif> <!-- External, general, unparsed --> + <!ENTITY % test3 "<!ELEMENT q ANY>"> <!-- Internal, parameter --> + <!ENTITY % test6 SYSTEM "ent6.xml"> <!-- External, parameter --> + <!ENTITY test4 "&test1; ist lieb"> <!-- IGP, Replacement text <> literal value --> + <!ENTITY test5 "<p>Dies ist ein Test-Absatz</p>"> <!-- IGP, See XmlSpec 2.4 --> + *) +TYPE + TPhase = (phName, phContent, phNData, phNotationName, phFinalGT); +VAR + Phase : TPhase; + IsParamEntity : BOOLEAN; + F : PChar; + ExternalID : TExternalID; + EntityDef : TEntityDef; + EntityDef2 : TEntityDef; + DER : TDtdElementRec; +BEGIN + Final := Start + 8; // First char after <!ENTITY + DER.Start := Start; + Phase := phName; + IsParamEntity := FALSE; + EntityDef := TEntityDef.Create; + REPEAT + IF NOT (Final^ IN CWhitespace) THEN + CASE Final^ OF + '%' : IsParamEntity := TRUE; + '>' : BREAK; + ELSE CASE Phase OF + phName : IF Final^ IN CNameStart THEN BEGIN + ExtractName (Final, CWhitespace + CQuoteChar, F); + SetStringSF (EntityDef.Name, Final, F); + Final := F; + Phase := phContent; + END; + phContent : IF Final^ IN CQuoteChar THEN BEGIN + ExtractQuote (Final, EntityDef.Value, Final); + Phase := phFinalGT; + END + ELSE IF (StrLComp (Final, 'SYSTEM', 6) = 0) OR + (StrLComp (Final, 'PUBLIC', 6) = 0) THEN BEGIN + ExternalID := TExternalID.Create (Final); + EntityDef.SystemId := ExternalID.SystemId; + EntityDef.PublicId := ExternalID.PublicId; + Final := ExternalID.Final; + Phase := phNData; + ExternalID.Free; + END; + phNData : IF StrLComp (Final, 'NDATA', 5) = 0 THEN BEGIN + INC (Final, 4); + Phase := phNotationName; + END; + phNotationName : IF Final^ IN CNameStart THEN BEGIN + ExtractName (Final, CWhitespace + ['>'], F); + SetStringSF (EntityDef.NotationName, Final, F); + Final := F; + Phase := phFinalGT; + END; + phFinalGT : ; // -!- There is an error in the document if this branch is called + END; + END; + INC (Final); + UNTIL FALSE; + IF IsParamEntity THEN BEGIN + EntityDef2 := TEntityDef (ParEntities.Node (EntityDef.Name)); + IF EntityDef2 <> NIL THEN + ParEntities.Delete (ParEntities.IndexOf (EntityDef2)); + ParEntities.Add (EntityDef); + ReplaceCharacterEntities (EntityDef.Value); + END + ELSE BEGIN + EntityDef2 := TEntityDef (Entities.Node (EntityDef.Name)); + IF EntityDef2 <> NIL THEN + Entities.Delete (Entities.IndexOf (EntityDef2)); + Entities.Add (EntityDef); + ReplaceParameterEntities (EntityDef.Value); // Create replacement texts (see XmlSpec 4.5) + ReplaceCharacterEntities (EntityDef.Value); + END; + Final := StrScanE (Final, '>'); + + DER.ElementType := deEntity; + DER.EntityDef := EntityDef; + DER.Final := Final; + DtdElementFound (DER); +END; + + +PROCEDURE TXmlParser.AnalyzeNotationDecl (Start : PChar; VAR Final : PChar); + // Parse <!NOTATION declaration starting at "Start" + // Final must point to the terminating '>' character + // XmlSpec 4.7: NotationDecl ::= '<!NOTATION' S Name S (ExternalID | PublicID) S? '>' +TYPE + TPhase = (phName, phExtId, phEnd); +VAR + ExternalID : TExternalID; + Phase : TPhase; + F : PChar; + NotationDef : TNotationDef; + DER : TDtdElementRec; +BEGIN + Final := Start + 10; // Character after <!NOTATION + DER.Start := Start; + Phase := phName; + NotationDef := TNotationDef.Create; + REPEAT + IF NOT (Final^ IN CWhitespace) THEN + CASE Final^ OF + '>', + #0 : BREAK; + ELSE CASE Phase OF + phName : BEGIN + ExtractName (Final, CWhitespace + ['>'], F); + SetStringSF (NotationDef.Name, Final, F); + Final := F; + Phase := phExtId; + END; + phExtId : BEGIN + ExternalID := TExternalID.Create (Final); + NotationDef.Value := ExternalID.SystemId; + NotationDef.PublicId := ExternalID.PublicId; + Final := ExternalId.Final; + ExternalId.Free; + Phase := phEnd; + END; + phEnd : ; // -!- There is an error in the document if this branch is called + END; + END; + INC (Final); + UNTIL FALSE; + Notations.Add (NotationDef); + Final := StrScanE (Final, '>'); + + DER.ElementType := deNotation; + DER.NotationDef := NotationDef; + DER.Final := Final; + DtdElementFound (DER); +END; + + +PROCEDURE TXmlParser.PushPE (VAR Start : PChar); + (* If there is a parameter entity reference found in the data stream, + the current position will be pushed to the entity stack. + Start: IN Pointer to the '%' character starting the PE reference + OUT Pointer to first character of PE replacement text *) +VAR + P : PChar; + EntityDef : TEntityDef; +BEGIN + P := StrScan (Start, ';'); + IF P <> NIL THEN BEGIN + EntityDef := TEntityDef (ParEntities.Node (StrSFPas (Start+1, P-1))); + IF EntityDef <> NIL THEN BEGIN + EntityStack.Push (P+1); + Start := PChar (EntityDef.Value); + END + ELSE + Start := P+1; + END; +END; + + +PROCEDURE TXmlParser.ReplaceCharacterEntities (VAR Str : STRING); + // Replaces all Character Entity References in the String +VAR + Start : INTEGER; + PAmp : PChar; + PSemi : PChar; + PosAmp : INTEGER; + Len : INTEGER; // Length of Entity Reference +BEGIN + IF Str = '' THEN EXIT; + Start := 1; + REPEAT + PAmp := StrPos (PChar (Str) + Start-1, '&#'); + IF PAmp = NIL THEN BREAK; + PSemi := StrScan (PAmp+2, ';'); + IF PSemi = NIL THEN BREAK; + PosAmp := PAmp - PChar (Str) + 1; + Len := PSemi-PAmp+1; + IF CompareText (Str [PosAmp+2], 'x') = 0 // !!! Can't use "CHR" for Unicode characters > 255 + THEN Str [PosAmp] := CHR (StrToIntDef ('$'+Copy (Str, PosAmp+3, Len-4), 0)) + ELSE Str [PosAmp] := CHR (StrToIntDef (Copy (Str, PosAmp+2, Len-3), 32)); + Delete (Str, PosAmp+1, Len-1); + Start := PosAmp + 1; + UNTIL FALSE; +END; + + +PROCEDURE TXmlParser.ReplaceParameterEntities (VAR Str : STRING); + // Recursively replaces all Parameter Entity References in the String + PROCEDURE ReplaceEntities (VAR Str : STRING); + VAR + Start : INTEGER; + PAmp : PChar; + PSemi : PChar; + PosAmp : INTEGER; + Len : INTEGER; + Entity : TEntityDef; + Repl : STRING; // Replacement + BEGIN + IF Str = '' THEN EXIT; + Start := 1; + REPEAT + PAmp := StrPos (PChar (Str)+Start-1, '%'); + IF PAmp = NIL THEN BREAK; + PSemi := StrScan (PAmp+2, ';'); + IF PSemi = NIL THEN BREAK; + PosAmp := PAmp - PChar (Str) + 1; + Len := PSemi-PAmp+1; + Entity := TEntityDef (ParEntities.Node (Copy (Str, PosAmp+1, Len-2))); + IF Entity <> NIL THEN BEGIN + Repl := Entity.Value; + ReplaceEntities (Repl); // Recursion + END + ELSE + Repl := Copy (Str, PosAmp, Len); + Delete (Str, PosAmp, Len); + Insert (Repl, Str, PosAmp); + Start := PosAmp + Length (Repl); + UNTIL FALSE; + END; +BEGIN + ReplaceEntities (Str); +END; + + +PROCEDURE TXmlParser.ReplaceGeneralEntities (VAR Str : STRING); + // Recursively replaces General Entity References in the String + PROCEDURE ReplaceEntities (VAR Str : STRING); + VAR + Start : INTEGER; + PAmp : PChar; + PSemi : PChar; + PosAmp : INTEGER; + Len : INTEGER; + EntityDef : TEntityDef; + EntName : STRING; + Repl : STRING; // Replacement + ExternalEntity : TXmlParser; + BEGIN + IF Str = '' THEN EXIT; + Start := 1; + REPEAT + PAmp := StrPos (PChar (Str)+Start-1, '&'); + IF PAmp = NIL THEN BREAK; + PSemi := StrScan (PAmp+2, ';'); + IF PSemi = NIL THEN BREAK; + PosAmp := PAmp - PChar (Str) + 1; + Len := PSemi-PAmp+1; + EntName := Copy (Str, PosAmp+1, Len-2); + IF EntName = 'lt' THEN Repl := '<' + ELSE IF EntName = 'gt' THEN Repl := '>' + ELSE IF EntName = 'amp' THEN Repl := '&' + ELSE IF EntName = 'apos' THEN Repl := '''' + ELSE IF EntName = 'quot' THEN Repl := '"' + ELSE BEGIN + EntityDef := TEntityDef (Entities.Node (EntName)); + IF EntityDef <> NIL THEN BEGIN + IF EntityDef.Value <> '' THEN // Internal Entity + Repl := EntityDef.Value + ELSE BEGIN // External Entity + ExternalEntity := LoadExternalEntity (EntityDef.SystemId, EntityDef.PublicId, EntityDef.NotationName); + Repl := StrPas (ExternalEntity.DocBuffer); // !!! What if it contains a Text Declaration? + ExternalEntity.Free; + END; + ReplaceEntities (Repl); // Recursion + END + ELSE + Repl := Copy (Str, PosAmp, Len); + END; + Delete (Str, PosAmp, Len); + Insert (Repl, Str, PosAmp); + Start := PosAmp + Length (Repl); + UNTIL FALSE; + END; +BEGIN + ReplaceEntities (Str); +END; + + +FUNCTION TXmlParser.LoadExternalEntity (SystemId, PublicId, Notation : STRING) : TXmlParser; + // This will be called whenever there is a Parsed External Entity or + // the DTD External Subset to be parsed. + // It has to create a TXmlParser instance and load the desired Entity. + // This instance of LoadExternalEntity assumes that "SystemId" is a valid + // file name (relative to the Document source) and loads this file using + // the LoadFromFile method. +VAR + Filename : STRING; +BEGIN + // --- Convert System ID to complete filename + Filename := StringReplace (SystemId, '/', '\', [rfReplaceAll]); + IF Copy (FSource, 1, 1) <> '<' THEN + IF (Copy (Filename, 1, 2) = '\\') OR (Copy (Filename, 2, 1) = ':') THEN + // Already has an absolute Path + ELSE BEGIN + Filename := ExtractFilePath (FSource) + Filename; + END; + + // --- Load the File + Result := TXmlParser.Create; + Result.LoadFromFile (Filename); +END; + + +FUNCTION TXmlParser.TranslateEncoding (CONST Source : STRING) : STRING; + // The member variable "CurEncoding" always holds the name of the current + // encoding, e.g. 'UTF-8' or 'ISO-8859-1'. + // This virtual method "TranslateEncoding" is responsible for translating + // the content passed in the "Source" parameter to the Encoding which + // is expected by the application. + // This instance of "TranlateEncoding" assumes that the Application expects + // Windows ANSI (Win1252) strings. It is able to transform UTF-8 or ISO-8859-1 + // encodings. + // If you want your application to understand or create other encodings, you + // override this function. +BEGIN + IF CurEncoding = 'UTF-8' + THEN Result := Utf8ToAnsi (Source) + ELSE Result := Source; +END; + + +PROCEDURE TXmlParser.DtdElementFound (DtdElementRec : TDtdElementRec); + // This method is called for every element which is found in the DTD + // declaration. The variant record TDtdElementRec is passed which + // holds informations about the element. + // You can override this function to handle DTD declarations. + // Note that when you parse the same Document instance a second time, + // the DTD will not get parsed again. +BEGIN +END; + + +FUNCTION TXmlParser.GetDocBuffer: PChar; + // Returns FBuffer or a pointer to a NUL char if Buffer is empty +BEGIN + IF FBuffer = NIL + THEN Result := #0 + ELSE Result := FBuffer; +END; + + +(*$IFNDEF HAS_CONTNRS_UNIT +=============================================================================================== +TObjectList +=============================================================================================== +*) + +DESTRUCTOR TObjectList.Destroy; +BEGIN + Clear; + SetCapacity(0); + INHERITED Destroy; +END; + + +PROCEDURE TObjectList.Delete (Index : INTEGER); +BEGIN + IF (Index < 0) OR (Index >= Count) THEN EXIT; + TObject (Items [Index]).Free; + INHERITED Delete (Index); +END; + + +PROCEDURE TObjectList.Clear; +BEGIN + WHILE Count > 0 DO + Delete (Count-1); +END; + +(*$ENDIF *) + +(* +=============================================================================================== +TNvpNode +-------- +Node base class for the TNvpList +=============================================================================================== +*) + +CONSTRUCTOR TNvpNode.Create (TheName, TheValue : STRING); +BEGIN + INHERITED Create; + Name := TheName; + Value := TheValue; +END; + + +(* +=============================================================================================== +TNvpList +-------- +A generic List of Name-Value Pairs, based on the TObjectList introduced in Delphi 5 +=============================================================================================== +*) + +PROCEDURE TNvpList.Add (Node : TNvpNode); +VAR + I : INTEGER; +BEGIN + FOR I := Count-1 DOWNTO 0 DO + IF Node.Name > TNvpNode (Items [I]).Name THEN BEGIN + Insert (I+1, Node); + EXIT; + END; + Insert (0, Node); +END; + + + +FUNCTION TNvpList.Node (Name : STRING) : TNvpNode; + // Binary search for Node +VAR + L, H : INTEGER; // Low, High Limit + T, C : INTEGER; // Test Index, Comparison result + Last : INTEGER; // Last Test Index +BEGIN + IF Count=0 THEN BEGIN + Result := NIL; + EXIT; + END; + + L := 0; + H := Count; + Last := -1; + REPEAT + T := (L+H) DIV 2; + IF T=Last THEN BREAK; + Result := TNvpNode (Items [T]); + C := CompareStr (Result.Name, Name); + IF C = 0 THEN EXIT + ELSE IF C < 0 THEN L := T + ELSE H := T; + Last := T; + UNTIL FALSE; + Result := NIL; +END; + + +FUNCTION TNvpList.Node (Index : INTEGER) : TNvpNode; +BEGIN + IF (Index < 0) OR (Index >= Count) + THEN Result := NIL + ELSE Result := TNvpNode (Items [Index]); +END; + + +FUNCTION TNvpList.Value (Name : STRING) : STRING; +VAR + Nvp : TNvpNode; +BEGIN + Nvp := TNvpNode (Node (Name)); + IF Nvp <> NIL + THEN Result := Nvp.Value + ELSE Result := ''; +END; + + +FUNCTION TNvpList.Value (Index : INTEGER) : STRING; +BEGIN + IF (Index < 0) OR (Index >= Count) + THEN Result := '' + ELSE Result := TNvpNode (Items [Index]).Value; +END; + + +FUNCTION TNvpList.Name (Index : INTEGER) : STRING; +BEGIN + IF (Index < 0) OR (Index >= Count) + THEN Result := '' + ELSE Result := TNvpNode (Items [Index]).Name; +END; + + +(* +=============================================================================================== +TAttrList +List of Attributes. The "Analyze" method extracts the Attributes from the given Buffer. +Is used for extraction of Attributes in Start-Tags, Empty-Element Tags and the "pseudo" +attributes in XML Prologs, Text Declarations and PIs. +=============================================================================================== +*) + +PROCEDURE TAttrList.Analyze (Start : PChar; VAR Final : PChar); + // Analyze the Buffer for Attribute=Name pairs. + // Terminates when there is a character which is not IN CNameStart + // (e.g. '?>' or '>' or '/>') +TYPE + TPhase = (phName, phEq, phValue); +VAR + Phase : TPhase; + F : PChar; + Name : STRING; + Value : STRING; + Attr : TAttr; +BEGIN + Clear; + Phase := phName; + Final := Start; + REPEAT + IF (Final^ = #0) OR (Final^ = '>') THEN BREAK; + IF NOT (Final^ IN CWhitespace) THEN + CASE Phase OF + phName : BEGIN + IF NOT (Final^ IN CNameStart) THEN EXIT; + ExtractName (Final, CWhitespace + ['=', '/'], F); + SetStringSF (Name, Final, F); + Final := F; + Phase := phEq; + END; + phEq : BEGIN + IF Final^ = '=' THEN + Phase := phValue + END; + phValue : BEGIN + IF Final^ IN CQuoteChar THEN BEGIN + ExtractQuote (Final, Value, F); + Attr := TAttr.Create; + Attr.Name := Name; + Attr.Value := Value; + Attr.ValueType := vtNormal; + Add (Attr); + Final := F; + Phase := phName; + END; + END; + END; + INC (Final); + UNTIL FALSE; +END; + + +(* +=============================================================================================== +TElemList +List of TElemDef nodes. +=============================================================================================== +*) + +FUNCTION TElemList.Node (Name : STRING) : TElemDef; + // Binary search for the Node with the given Name +VAR + L, H : INTEGER; // Low, High Limit + T, C : INTEGER; // Test Index, Comparison result + Last : INTEGER; // Last Test Index +BEGIN + IF Count=0 THEN BEGIN + Result := NIL; + EXIT; + END; + + L := 0; + H := Count; + Last := -1; + REPEAT + T := (L+H) DIV 2; + IF T=Last THEN BREAK; + Result := TElemDef (Items [T]); + C := CompareStr (Result.Name, Name); + IF C = 0 THEN EXIT + ELSE IF C < 0 THEN L := T + ELSE H := T; + Last := T; + UNTIL FALSE; + Result := NIL; +END; + + +PROCEDURE TElemList.Add (Node : TElemDef); +VAR + I : INTEGER; +BEGIN + FOR I := Count-1 DOWNTO 0 DO + IF Node.Name > TElemDef (Items [I]).Name THEN BEGIN + Insert (I+1, Node); + EXIT; + END; + Insert (0, Node); +END; + + +(* +=============================================================================================== +TScannerXmlParser +A TXmlParser descendant for the TCustomXmlScanner component +=============================================================================================== +*) + +TYPE + TScannerXmlParser = CLASS (TXmlParser) + Scanner : TCustomXmlScanner; + CONSTRUCTOR Create (TheScanner : TCustomXmlScanner); + FUNCTION LoadExternalEntity (SystemId, PublicId, + Notation : STRING) : TXmlParser; OVERRIDE; + FUNCTION TranslateEncoding (CONST Source : STRING) : STRING; OVERRIDE; + PROCEDURE DtdElementFound (DtdElementRec : TDtdElementRec); OVERRIDE; + END; + +CONSTRUCTOR TScannerXmlParser.Create (TheScanner : TCustomXmlScanner); +BEGIN + INHERITED Create; + Scanner := TheScanner; +END; + + +FUNCTION TScannerXmlParser.LoadExternalEntity (SystemId, PublicId, Notation : STRING) : TXmlParser; +BEGIN + IF Assigned (Scanner.FOnLoadExternal) + THEN Scanner.FOnLoadExternal (Scanner, SystemId, PublicId, Notation, Result) + ELSE Result := INHERITED LoadExternalEntity (SystemId, PublicId, Notation); +END; + + +FUNCTION TScannerXmlParser.TranslateEncoding (CONST Source : STRING) : STRING; +BEGIN + IF Assigned (Scanner.FOnTranslateEncoding) + THEN Result := Scanner.FOnTranslateEncoding (Scanner, CurEncoding, Source) + ELSE Result := INHERITED TranslateEncoding (Source); +END; + + +PROCEDURE TScannerXmlParser.DtdElementFound (DtdElementRec : TDtdElementRec); +BEGIN + WITH DtdElementRec DO + CASE ElementType OF + deElement : Scanner.WhenElement (ElemDef); + deAttList : Scanner.WhenAttList (ElemDef); + deEntity : Scanner.WhenEntity (EntityDef); + deNotation : Scanner.WhenNotation (NotationDef); + dePI : Scanner.WhenPI (STRING (Target), STRING (Content), AttrList); + deComment : Scanner.WhenComment (StrSFPas (Start, Final)); + deError : Scanner.WhenDtdError (Pos); + END; +END; + + +(* +=============================================================================================== +TCustomXmlScanner +=============================================================================================== +*) + +CONSTRUCTOR TCustomXmlScanner.Create (AOwner: TComponent); +BEGIN + INHERITED; + FXmlParser := TScannerXmlParser.Create (Self); +END; + + +DESTRUCTOR TCustomXmlScanner.Destroy; +BEGIN + FXmlParser.Free; + INHERITED; +END; + + +PROCEDURE TCustomXmlScanner.LoadFromFile (Filename : TFilename); + // Load XML Document from file +BEGIN + FXmlParser.LoadFromFile (Filename); +END; + + +PROCEDURE TCustomXmlScanner.LoadFromBuffer (Buffer : PChar); + // Load XML Document from buffer +BEGIN + FXmlParser.LoadFromBuffer (Buffer); +END; + + +PROCEDURE TCustomXmlScanner.SetBuffer (Buffer : PChar); + // Refer to Buffer +BEGIN + FXmlParser.SetBuffer (Buffer); +END; + + +FUNCTION TCustomXmlScanner.GetFilename : TFilename; +BEGIN + Result := FXmlParser.Source; +END; + + +FUNCTION TCustomXmlScanner.GetNormalize : BOOLEAN; +BEGIN + Result := FXmlParser.Normalize; +END; + + +PROCEDURE TCustomXmlScanner.SetNormalize (Value : BOOLEAN); +BEGIN + FXmlParser.Normalize := Value; +END; + + +PROCEDURE TCustomXmlScanner.WhenXmlProlog(XmlVersion, Encoding: STRING; Standalone : BOOLEAN); + // Is called when the parser has parsed the <? xml ?> declaration of the prolog +BEGIN + IF Assigned (FOnXmlProlog) THEN FOnXmlProlog (Self, XmlVersion, Encoding, Standalone); +END; + + +PROCEDURE TCustomXmlScanner.WhenComment (Comment : STRING); + // Is called when the parser has parsed a <!-- comment --> +BEGIN + IF Assigned (FOnComment) THEN FOnComment (Self, Comment); +END; + + +PROCEDURE TCustomXmlScanner.WhenPI (Target, Content: STRING; Attributes : TAttrList); + // Is called when the parser has parsed a <?processing instruction ?> +BEGIN + IF Assigned (FOnPI) THEN FOnPI (Self, Target, Content, Attributes); +END; + + +PROCEDURE TCustomXmlScanner.WhenDtdRead (RootElementName : STRING); + // Is called when the parser has completely parsed the DTD +BEGIN + IF Assigned (FOnDtdRead) THEN FOnDtdRead (Self, RootElementName); +END; + + +PROCEDURE TCustomXmlScanner.WhenStartTag (TagName : STRING; Attributes : TAttrList); + // Is called when the parser has parsed a start tag like <p> +BEGIN + IF Assigned (FOnStartTag) THEN FOnStartTag (Self, TagName, Attributes); +END; + + +PROCEDURE TCustomXmlScanner.WhenEmptyTag (TagName : STRING; Attributes : TAttrList); + // Is called when the parser has parsed an Empty Element Tag like <br/> +BEGIN + IF Assigned (FOnEmptyTag) THEN FOnEmptyTag (Self, TagName, Attributes); +END; + + +PROCEDURE TCustomXmlScanner.WhenEndTag (TagName : STRING); + // Is called when the parser has parsed an End Tag like </p> +BEGIN + IF Assigned (FOnEndTag) THEN FOnEndTag (Self, TagName); +END; + + +PROCEDURE TCustomXmlScanner.WhenContent (Content : STRING); + // Is called when the parser has parsed an element's text content +BEGIN + IF Assigned (FOnContent) THEN FOnContent (Self, Content); +END; + + +PROCEDURE TCustomXmlScanner.WhenCData (Content : STRING); + // Is called when the parser has parsed a CDATA section +BEGIN + IF Assigned (FOnCData) THEN FOnCData (Self, Content); +END; + + +PROCEDURE TCustomXmlScanner.WhenElement (ElemDef : TElemDef); + // Is called when the parser has parsed an <!ELEMENT> definition + // inside the DTD +BEGIN + IF Assigned (FOnElement) THEN FOnElement (Self, ElemDef); +END; + + +PROCEDURE TCustomXmlScanner.WhenAttList (ElemDef : TElemDef); + // Is called when the parser has parsed an <!ATTLIST> definition + // inside the DTD +BEGIN + IF Assigned (FOnAttList) THEN FOnAttList (Self, ElemDef); +END; + + +PROCEDURE TCustomXmlScanner.WhenEntity (EntityDef : TEntityDef); + // Is called when the parser has parsed an <!ENTITY> definition + // inside the DTD +BEGIN + IF Assigned (FOnEntity) THEN FOnEntity (Self, EntityDef); +END; + + +PROCEDURE TCustomXmlScanner.WhenNotation (NotationDef : TNotationDef); + // Is called when the parser has parsed a <!NOTATION> definition + // inside the DTD +BEGIN + IF Assigned (FOnNotation) THEN FOnNotation (Self, NotationDef); +END; + + +PROCEDURE TCustomXmlScanner.WhenDtdError (ErrorPos : PChar); + // Is called when the parser has found an Error in the DTD +BEGIN + IF Assigned (FOnDtdError) THEN FOnDtdError (Self, ErrorPos); +END; + + +PROCEDURE TCustomXmlScanner.Execute; + // Perform scanning + // Scanning is done synchronously, i.e. you can expect events to be triggered + // in the order of the XML data stream. Execute will finish when the whole XML + // document has been scanned or when the StopParser property has been set to TRUE. +BEGIN + FStopParser := FALSE; + FXmlParser.StartScan; + WHILE FXmlParser.Scan AND (NOT FStopParser) DO + CASE FXmlParser.CurPartType OF + ptNone : ; + ptXmlProlog : WhenXmlProlog (FXmlParser.XmlVersion, FXmlParser.Encoding, FXmlParser.Standalone); + ptComment : WhenComment (StrSFPas (FXmlParser.CurStart, FXmlParser.CurFinal)); + ptPI : WhenPI (FXmlParser.CurName, FXmlParser.CurContent, FXmlParser.CurAttr); + ptDtdc : WhenDtdRead (FXmlParser.RootName); + ptStartTag : WhenStartTag (FXmlParser.CurName, FXmlParser.CurAttr); + ptEmptyTag : WhenEmptyTag (FXmlParser.CurName, FXmlParser.CurAttr); + ptEndTag : WhenEndTag (FXmlParser.CurName); + ptContent : WhenContent (FXmlParser.CurContent); + ptCData : WhenCData (FXmlParser.CurContent); + END; +END; + + +END. diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/logger.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/logger.pas index 461fa261..ad9b24e6 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/logger.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/logger.pas @@ -1,189 +1,189 @@ -unit logger;
-{
- $Id: logger.pas,v 1.2 2006/11/26 16:58:04 savage Exp $
-
-}
-{******************************************************************************}
-{ }
-{ Error Logging Unit }
-{ }
-{ The initial developer of this Pascal code was : }
-{ Dominique Louis <Dominique@SavageSoftware.com.au> }
-{ }
-{ Portions created by Dominique Louis are }
-{ Copyright (C) 2000 - 2001 Dominique Louis. }
-{ }
-{ }
-{ }
-{ Contributor(s) }
-{ -------------- }
-{ }
-{ }
-{ Obtained through: }
-{ Joint Endeavour of Delphi Innovators ( Project JEDI ) }
-{ }
-{ You may retrieve the latest version of this file at the Project }
-{ JEDI home page, located at http://delphi-jedi.org }
-{ }
-{ The contents of this file are used with permission, subject to }
-{ the Mozilla Public License Version 1.1 (the "License"); you may }
-{ not use this file except in compliance with the License. You may }
-{ obtain a copy of the License at }
-{ http://www.mozilla.org/MPL/MPL-1.1.html }
-{ }
-{ Software distributed under the License is distributed on an }
-{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or }
-{ implied. See the License for the specific language governing }
-{ rights and limitations under the License. }
-{ }
-{ Description }
-{ ----------- }
-{ Logging functions... }
-{ }
-{ }
-{ Requires }
-{ -------- }
-{ SDL.dll on Windows platforms }
-{ libSDL-1.1.so.0 on Linux platform }
-{ }
-{ Programming Notes }
-{ ----------------- }
-{ }
-{ }
-{ }
-{ }
-{ Revision History }
-{ ---------------- }
-{ 2001 - DL : Initial creation }
-{ 25/10/2001 - DRE : Added $M+ directive to allow published }
-{ in classes. Added a compile directive }
-{ around fmShareExclusive as this does not }
-{ exist in Free Pascal }
-{ }
-{******************************************************************************}
-{
- $Log: logger.pas,v $
- Revision 1.2 2006/11/26 16:58:04 savage
- Modifed to create separate log files. Therefore each instance running from the same directory will have their own individual log file, prepended with a number.
-
- Revision 1.1 2004/02/05 00:08:20 savage
- Module 1.0 release
-
-
-}
-
-{$I jedi-sdl.inc}
-
-{$WEAKPACKAGEUNIT OFF}
-
-interface
-
-uses
- Classes,
- SysUtils;
-
-type
- TLogger = class
- private
- FFileHandle : TextFile;
- FApplicationName : string;
- FApplicationPath : string;
- protected
-
- public
- constructor Create;
- destructor Destroy; override;
- function GetApplicationName: string;
- function GetApplicationPath: string;
- procedure LogError( ErrorMessage : string; Location : string );
- procedure LogWarning( WarningMessage : string; Location : string );
- procedure LogStatus( StatusMessage : string; Location : string );
- published
- property ApplicationName : string read GetApplicationName;
- property ApplicationPath : string read GetApplicationPath;
- end;
-
-var
- Log : TLogger;
-
-implementation
-
-{ TLogger }
-constructor TLogger.Create;
-var
- FileName : string;
- FileNo : integer;
-begin
- FApplicationName := ExtractFileName( ParamStr(0) );
- FApplicationPath := ExtractFilePath( ParamStr(0) );
- FileName := FApplicationPath + ChangeFileExt( FApplicationName, '.log' );
- FileNo := 0;
- while FileExists( FileName ) do
- begin
- inc( FileNo );
- FileName := FApplicationPath + IntToStr( FileNo ) + ChangeFileExt( FApplicationName, '.log' )
- end;
- AssignFile( FFileHandle, FileName );
- ReWrite( FFileHandle );
- (*inherited Create( FApplicationPath + ChangeFileExt( FApplicationName, '.log' ),
- fmCreate {$IFNDEF FPC}or fmShareExclusive{$ENDIF} );*)
-end;
-
-destructor TLogger.Destroy;
-begin
- CloseFile( FFileHandle );
- inherited;
-end;
-
-function TLogger.GetApplicationName: string;
-begin
- result := FApplicationName;
-end;
-
-function TLogger.GetApplicationPath: string;
-begin
- result := FApplicationPath;
-end;
-
-procedure TLogger.LogError(ErrorMessage, Location: string);
-var
- S : string;
-begin
- S := '*** ERROR *** : @ ' + TimeToStr(Time) + ' MSG : ' + ErrorMessage + ' IN : ' + Location + #13#10;
- WriteLn( FFileHandle, S );
- Flush( FFileHandle );
-end;
-
-procedure TLogger.LogStatus(StatusMessage, Location: string);
-var
- S : string;
-begin
- S := 'STATUS INFO : @ ' + TimeToStr(Time) + ' MSG : ' + StatusMessage + ' IN : ' + Location + #13#10;
- WriteLn( FFileHandle, S );
- Flush( FFileHandle );
-end;
-
-procedure TLogger.LogWarning(WarningMessage, Location: string);
-var
- S : string;
-begin
- S := '=== WARNING === : @ ' + TimeToStr(Time) + ' MSG : ' + WarningMessage + ' IN : ' + Location + #13#10;
- WriteLn( FFileHandle, S );
- Flush( FFileHandle );
-end;
-
-initialization
-begin
- Log := TLogger.Create;
- Log.LogStatus( 'Starting Application', 'Initialization' );
-end;
-
-finalization
-begin
- Log.LogStatus( 'Terminating Application', 'Finalization' );
- Log.Free;
- Log := nil;
-end;
-
-end.
+unit logger; +{ + $Id: logger.pas,v 1.2 2006/11/26 16:58:04 savage Exp $ + +} +{******************************************************************************} +{ } +{ Error Logging Unit } +{ } +{ The initial developer of this Pascal code was : } +{ Dominique Louis <Dominique@SavageSoftware.com.au> } +{ } +{ Portions created by Dominique Louis are } +{ Copyright (C) 2000 - 2001 Dominique Louis. } +{ } +{ } +{ } +{ Contributor(s) } +{ -------------- } +{ } +{ } +{ Obtained through: } +{ Joint Endeavour of Delphi Innovators ( Project JEDI ) } +{ } +{ You may retrieve the latest version of this file at the Project } +{ JEDI home page, located at http://delphi-jedi.org } +{ } +{ The contents of this file are used with permission, subject to } +{ the Mozilla Public License Version 1.1 (the "License"); you may } +{ not use this file except in compliance with the License. You may } +{ obtain a copy of the License at } +{ http://www.mozilla.org/MPL/MPL-1.1.html } +{ } +{ Software distributed under the License is distributed on an } +{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } +{ implied. See the License for the specific language governing } +{ rights and limitations under the License. } +{ } +{ Description } +{ ----------- } +{ Logging functions... } +{ } +{ } +{ Requires } +{ -------- } +{ SDL.dll on Windows platforms } +{ libSDL-1.1.so.0 on Linux platform } +{ } +{ Programming Notes } +{ ----------------- } +{ } +{ } +{ } +{ } +{ Revision History } +{ ---------------- } +{ 2001 - DL : Initial creation } +{ 25/10/2001 - DRE : Added $M+ directive to allow published } +{ in classes. Added a compile directive } +{ around fmShareExclusive as this does not } +{ exist in Free Pascal } +{ } +{******************************************************************************} +{ + $Log: logger.pas,v $ + Revision 1.2 2006/11/26 16:58:04 savage + Modifed to create separate log files. Therefore each instance running from the same directory will have their own individual log file, prepended with a number. + + Revision 1.1 2004/02/05 00:08:20 savage + Module 1.0 release + + +} + +{$I jedi-sdl.inc} + +{$WEAKPACKAGEUNIT OFF} + +interface + +uses + Classes, + SysUtils; + +type + TLogger = class + private + FFileHandle : TextFile; + FApplicationName : string; + FApplicationPath : string; + protected + + public + constructor Create; + destructor Destroy; override; + function GetApplicationName: string; + function GetApplicationPath: string; + procedure LogError( ErrorMessage : string; Location : string ); + procedure LogWarning( WarningMessage : string; Location : string ); + procedure LogStatus( StatusMessage : string; Location : string ); + published + property ApplicationName : string read GetApplicationName; + property ApplicationPath : string read GetApplicationPath; + end; + +var + Log : TLogger; + +implementation + +{ TLogger } +constructor TLogger.Create; +var + FileName : string; + FileNo : integer; +begin + FApplicationName := ExtractFileName( ParamStr(0) ); + FApplicationPath := ExtractFilePath( ParamStr(0) ); + FileName := FApplicationPath + ChangeFileExt( FApplicationName, '.log' ); + FileNo := 0; + while FileExists( FileName ) do + begin + inc( FileNo ); + FileName := FApplicationPath + IntToStr( FileNo ) + ChangeFileExt( FApplicationName, '.log' ) + end; + AssignFile( FFileHandle, FileName ); + ReWrite( FFileHandle ); + (*inherited Create( FApplicationPath + ChangeFileExt( FApplicationName, '.log' ), + fmCreate {$IFNDEF FPC}or fmShareExclusive{$ENDIF} );*) +end; + +destructor TLogger.Destroy; +begin + CloseFile( FFileHandle ); + inherited; +end; + +function TLogger.GetApplicationName: string; +begin + result := FApplicationName; +end; + +function TLogger.GetApplicationPath: string; +begin + result := FApplicationPath; +end; + +procedure TLogger.LogError(ErrorMessage, Location: string); +var + S : string; +begin + S := '*** ERROR *** : @ ' + TimeToStr(Time) + ' MSG : ' + ErrorMessage + ' IN : ' + Location + #13#10; + WriteLn( FFileHandle, S ); + Flush( FFileHandle ); +end; + +procedure TLogger.LogStatus(StatusMessage, Location: string); +var + S : string; +begin + S := 'STATUS INFO : @ ' + TimeToStr(Time) + ' MSG : ' + StatusMessage + ' IN : ' + Location + #13#10; + WriteLn( FFileHandle, S ); + Flush( FFileHandle ); +end; + +procedure TLogger.LogWarning(WarningMessage, Location: string); +var + S : string; +begin + S := '=== WARNING === : @ ' + TimeToStr(Time) + ' MSG : ' + WarningMessage + ' IN : ' + Location + #13#10; + WriteLn( FFileHandle, S ); + Flush( FFileHandle ); +end; + +initialization +begin + Log := TLogger.Create; + Log.LogStatus( 'Starting Application', 'Initialization' ); +end; + +finalization +begin + Log.LogStatus( 'Terminating Application', 'Finalization' ); + Log.Free; + Log := nil; +end; + +end.
\ No newline at end of file diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/moduleloader.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/moduleloader.pas index 146e4b30..56863ea5 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/moduleloader.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/moduleloader.pas @@ -1,319 +1,319 @@ -unit moduleloader;
-{
- $Id: moduleloader.pas,v 1.4 2004/02/20 17:19:10 savage Exp $
-
-}
-{******************************************************************}
-{ }
-{ Project JEDI }
-{ OS independent Dynamic Loading Helpers }
-{ }
-{ The initial developer of the this code is }
-{ Robert Marquardt <robert_marquardt@gmx.de) }
-{ }
-{ Copyright (C) 2000, 2001 Robert Marquardt. }
-{ }
-{ Obtained through: }
-{ Joint Endeavour of Delphi Innovators (Project JEDI) }
-{ }
-{ You may retrieve the latest version of this file at the Project }
-{ JEDI home page, located at http://delphi-jedi.org }
-{ }
-{ The contents of this file are used with permission, subject to }
-{ the Mozilla Public License Version 1.1 (the "License"); you may }
-{ not use this file except in compliance with the License. You may }
-{ obtain a copy of the License at }
-{ http://www.mozilla.org/NPL/NPL-1_1Final.html }
-{ }
-{ Software distributed under the License is distributed on an }
-{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or }
-{ implied. See the License for the specific language governing }
-{ rights and limitations under the License. }
-{ }
-{******************************************************************}
-{
- $Log: moduleloader.pas,v $
- Revision 1.4 2004/02/20 17:19:10 savage
- Added Calling convention to Win32 functions just in case.
-
- Revision 1.3 2004/02/14 22:36:29 savage
- Fixed inconsistencies of using LoadLibrary and LoadModule.
- Now all units make use of LoadModule rather than LoadLibrary and other dynamic proc procedures.
-
- Revision 1.2 2004/02/14 00:23:39 savage
- As UNIX is defined in jedi-sdl.inc this will be used to check linux compatability as well. Units have been changed to reflect this change.
-
- Revision 1.1 2004/02/14 00:04:50 savage
- dllfuncs conflicts with FreePascal so it has been renamed back to the moduleloader.pas
-
- Revision 1.1 2004/02/05 00:08:19 savage
- Module 1.0 release
-
-
-}
-
-interface
-
-{$i jedi-sdl.inc}
-{$WEAKPACKAGEUNIT ON}
-
-// each OS gets its own IFDEFed complete code block to make reading easier
-
-{$IFDEF WIN32}
-uses
- Windows;
-
-type
- // Handle to a loaded DLL
- TModuleHandle = HINST;
-
-const
- // Value designating an unassigned TModuleHandle od a failed loading
- INVALID_MODULEHANDLE_VALUE = TModuleHandle(0);
-
-function LoadModule(var Module: TModuleHandle; FileName: PChar): Boolean; stdcall;
-function LoadModuleEx(var Module: TModuleHandle; FileName: PChar; Flags: Cardinal): Boolean; stdcall;
-procedure UnloadModule(var Module: TModuleHandle); stdcall;
-function GetModuleSymbol(Module: TModuleHandle; SymbolName: PChar): Pointer; stdcall;
-function GetModuleSymbolEx(Module: TModuleHandle; SymbolName: PChar; var Accu: Boolean): Pointer; stdcall;
-function ReadModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean; stdcall;
-function WriteModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean; stdcall;
-
-implementation
-
-// load the DLL file FileName
-// the rules for FileName are those of LoadLibrary
-// Returns: True = success, False = failure to load
-// Assigns: the handle of the loaded DLL to Module
-// Warning: if Module has any other value than INVALID_MODULEHANDLE_VALUE
-// on entry the function will do nothing but returning success.
-
-function LoadModule(var Module: TModuleHandle; FileName: PChar): Boolean;
-begin
- if Module = INVALID_MODULEHANDLE_VALUE then
- Module := LoadLibrary( FileName );
- Result := Module <> INVALID_MODULEHANDLE_VALUE;
-end;
-
-// load the DLL file FileName
-// LoadLibraryEx is used to get better control of the loading
-// for the allowed values for flags see LoadLibraryEx documentation.
-
-function LoadModuleEx(var Module: TModuleHandle; FileName: PChar; Flags: Cardinal): Boolean;
-begin
- if Module = INVALID_MODULEHANDLE_VALUE then
- Module := LoadLibraryEx( FileName, 0, Flags);
- Result := Module <> INVALID_MODULEHANDLE_VALUE;
-end;
-
-// unload a DLL loaded with LoadModule or LoadModuleEx
-// The procedure will not try to unload a handle with
-// value INVALID_MODULEHANDLE_VALUE and assigns this value
-// to Module after unload.
-
-procedure UnloadModule(var Module: TModuleHandle);
-begin
- if Module <> INVALID_MODULEHANDLE_VALUE then
- FreeLibrary(Module);
- Module := INVALID_MODULEHANDLE_VALUE;
-end;
-
-// returns the pointer to the symbol named SymbolName
-// if it is exported from the DLL Module
-// nil is returned if the symbol is not available
-
-function GetModuleSymbol(Module: TModuleHandle; SymbolName: PChar): Pointer;
-begin
- Result := nil;
- if Module <> INVALID_MODULEHANDLE_VALUE then
- Result := GetProcAddress(Module, SymbolName );
-end;
-
-// returns the pointer to the symbol named SymbolName
-// if it is exported from the DLL Module
-// nil is returned if the symbol is not available.
-// as an extra the boolean variable Accu is updated
-// by anding in the success of the function.
-// This is very handy for rendering a global result
-// when accessing a long list of symbols.
-
-function GetModuleSymbolEx(Module: TModuleHandle; SymbolName: PChar; var Accu: Boolean): Pointer;
-begin
- Result := nil;
- if Module <> INVALID_MODULEHANDLE_VALUE then
- Result := GetProcAddress(Module, SymbolName );
- Accu := Accu and (Result <> nil);
-end;
-
-// get the value of variables exported from a DLL Module
-// Delphi cannot access variables in a DLL directly, so
-// this function allows to copy the data from the DLL.
-// Beware! You are accessing the DLL memory image directly.
-// Be sure to access a variable not a function and be sure
-// to read the correct amount of data.
-
-function ReadModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean;
-var
- Sym: Pointer;
-begin
- Result := True;
- Sym := GetModuleSymbolEx(Module, SymbolName, Result);
- if Result then
- Move(Sym^, Buffer, Size);
-end;
-
-// set the value of variables exported from a DLL Module
-// Delphi cannot access variables in a DLL directly, so
-// this function allows to copy the data to the DLL!
-// BEWARE! You are accessing the DLL memory image directly.
-// Be sure to access a variable not a function and be sure
-// to write the correct amount of data.
-// The changes are not persistent. They get lost when the
-// DLL is unloaded.
-
-function WriteModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean;
-var
- Sym: Pointer;
-begin
- Result := True;
- Sym := GetModuleSymbolEx(Module, SymbolName, Result);
- if Result then
- Move(Buffer, Sym^, Size);
-end;
-
-{$ENDIF}
-
-{$IFDEF Unix}
-uses
-{$ifdef Linux}
- Types,
- Libc;
-{$else}
- dl,
- Types,
- Baseunix,
- Unix;
-{$endif}
-type
- // Handle to a loaded .so
- TModuleHandle = Pointer;
-
-const
- // Value designating an unassigned TModuleHandle od a failed loading
- INVALID_MODULEHANDLE_VALUE = TModuleHandle(nil);
-
-function LoadModule(var Module: TModuleHandle; FileName: PChar): Boolean;
-function LoadModuleEx(var Module: TModuleHandle; FileName: PChar; Flags: Cardinal): Boolean;
-procedure UnloadModule(var Module: TModuleHandle);
-function GetModuleSymbol(Module: TModuleHandle; SymbolName: PChar): Pointer;
-function GetModuleSymbolEx(Module: TModuleHandle; SymbolName: PChar; var Accu: Boolean): Pointer;
-function ReadModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean;
-function WriteModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean;
-
-implementation
-
-// load the .so file FileName
-// the rules for FileName are those of dlopen()
-// Returns: True = success, False = failure to load
-// Assigns: the handle of the loaded .so to Module
-// Warning: if Module has any other value than INVALID_MODULEHANDLE_VALUE
-// on entry the function will do nothing but returning success.
-
-function LoadModule(var Module: TModuleHandle; FileName: PChar): Boolean;
-begin
- if Module = INVALID_MODULEHANDLE_VALUE then
- Module := dlopen( FileName, RTLD_NOW);
- Result := Module <> INVALID_MODULEHANDLE_VALUE;
-end;
-
-// load the .so file FileName
-// dlopen() with flags is used to get better control of the loading
-// for the allowed values for flags see "man dlopen".
-
-function LoadModuleEx(var Module: TModuleHandle; FileName: PChar; Flags: Cardinal): Boolean;
-begin
- if Module = INVALID_MODULEHANDLE_VALUE then
- Module := dlopen( FileName, Flags);
- Result := Module <> INVALID_MODULEHANDLE_VALUE;
-end;
-
-// unload a .so loaded with LoadModule or LoadModuleEx
-// The procedure will not try to unload a handle with
-// value INVALID_MODULEHANDLE_VALUE and assigns this value
-// to Module after unload.
-
-procedure UnloadModule(var Module: TModuleHandle);
-begin
- if Module <> INVALID_MODULEHANDLE_VALUE then
- dlclose(Module);
- Module := INVALID_MODULEHANDLE_VALUE;
-end;
-
-// returns the pointer to the symbol named SymbolName
-// if it is exported from the .so Module
-// nil is returned if the symbol is not available
-
-function GetModuleSymbol(Module: TModuleHandle; SymbolName: PChar): Pointer;
-begin
- Result := nil;
- if Module <> INVALID_MODULEHANDLE_VALUE then
- Result := dlsym(Module, SymbolName );
-end;
-
-// returns the pointer to the symbol named SymbolName
-// if it is exported from the .so Module
-// nil is returned if the symbol is not available.
-// as an extra the boolean variable Accu is updated
-// by anding in the success of the function.
-// This is very handy for rendering a global result
-// when accessing a long list of symbols.
-
-function GetModuleSymbolEx(Module: TModuleHandle; SymbolName: PChar; var Accu: Boolean): Pointer;
-begin
- Result := nil;
- if Module <> INVALID_MODULEHANDLE_VALUE then
- Result := dlsym(Module, SymbolName );
- Accu := Accu and (Result <> nil);
-end;
-
-// get the value of variables exported from a .so Module
-// Delphi cannot access variables in a .so directly, so
-// this function allows to copy the data from the .so.
-// Beware! You are accessing the .so memory image directly.
-// Be sure to access a variable not a function and be sure
-// to read the correct amount of data.
-
-function ReadModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean;
-var
- Sym: Pointer;
-begin
- Result := True;
- Sym := GetModuleSymbolEx(Module, SymbolName, Result);
- if Result then
- Move(Sym^, Buffer, Size);
-end;
-
-// set the value of variables exported from a .so Module
-// Delphi cannot access variables in a .so directly, so
-// this function allows to copy the data to the .so!
-// BEWARE! You are accessing the .so memory image directly.
-// Be sure to access a variable not a function and be sure
-// to write the correct amount of data.
-// The changes are not persistent. They get lost when the
-// .so is unloaded.
-
-function WriteModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean;
-var
- Sym: Pointer;
-begin
- Result := True;
- Sym := GetModuleSymbolEx(Module, SymbolName, Result);
- if Result then
- Move(Buffer, Sym^, Size);
-end;
-{$ENDIF}
-
-{$IFDEF __MACH__} // Mach definitions go here
-{$ENDIF}
-
-end.
+unit moduleloader; +{ + $Id: moduleloader.pas,v 1.4 2004/02/20 17:19:10 savage Exp $ + +} +{******************************************************************} +{ } +{ Project JEDI } +{ OS independent Dynamic Loading Helpers } +{ } +{ The initial developer of the this code is } +{ Robert Marquardt <robert_marquardt@gmx.de) } +{ } +{ Copyright (C) 2000, 2001 Robert Marquardt. } +{ } +{ Obtained through: } +{ Joint Endeavour of Delphi Innovators (Project JEDI) } +{ } +{ You may retrieve the latest version of this file at the Project } +{ JEDI home page, located at http://delphi-jedi.org } +{ } +{ The contents of this file are used with permission, subject to } +{ the Mozilla Public License Version 1.1 (the "License"); you may } +{ not use this file except in compliance with the License. You may } +{ obtain a copy of the License at } +{ http://www.mozilla.org/NPL/NPL-1_1Final.html } +{ } +{ Software distributed under the License is distributed on an } +{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } +{ implied. See the License for the specific language governing } +{ rights and limitations under the License. } +{ } +{******************************************************************} +{ + $Log: moduleloader.pas,v $ + Revision 1.4 2004/02/20 17:19:10 savage + Added Calling convention to Win32 functions just in case. + + Revision 1.3 2004/02/14 22:36:29 savage + Fixed inconsistencies of using LoadLibrary and LoadModule. + Now all units make use of LoadModule rather than LoadLibrary and other dynamic proc procedures. + + Revision 1.2 2004/02/14 00:23:39 savage + As UNIX is defined in jedi-sdl.inc this will be used to check linux compatability as well. Units have been changed to reflect this change. + + Revision 1.1 2004/02/14 00:04:50 savage + dllfuncs conflicts with FreePascal so it has been renamed back to the moduleloader.pas + + Revision 1.1 2004/02/05 00:08:19 savage + Module 1.0 release + + +} + +interface + +{$i jedi-sdl.inc} +{$WEAKPACKAGEUNIT ON} + +// each OS gets its own IFDEFed complete code block to make reading easier + +{$IFDEF WIN32} +uses + Windows; + +type + // Handle to a loaded DLL + TModuleHandle = HINST; + +const + // Value designating an unassigned TModuleHandle od a failed loading + INVALID_MODULEHANDLE_VALUE = TModuleHandle(0); + +function LoadModule(var Module: TModuleHandle; FileName: PChar): Boolean; stdcall; +function LoadModuleEx(var Module: TModuleHandle; FileName: PChar; Flags: Cardinal): Boolean; stdcall; +procedure UnloadModule(var Module: TModuleHandle); stdcall; +function GetModuleSymbol(Module: TModuleHandle; SymbolName: PChar): Pointer; stdcall; +function GetModuleSymbolEx(Module: TModuleHandle; SymbolName: PChar; var Accu: Boolean): Pointer; stdcall; +function ReadModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean; stdcall; +function WriteModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean; stdcall; + +implementation + +// load the DLL file FileName +// the rules for FileName are those of LoadLibrary +// Returns: True = success, False = failure to load +// Assigns: the handle of the loaded DLL to Module +// Warning: if Module has any other value than INVALID_MODULEHANDLE_VALUE +// on entry the function will do nothing but returning success. + +function LoadModule(var Module: TModuleHandle; FileName: PChar): Boolean; +begin + if Module = INVALID_MODULEHANDLE_VALUE then + Module := LoadLibrary( FileName ); + Result := Module <> INVALID_MODULEHANDLE_VALUE; +end; + +// load the DLL file FileName +// LoadLibraryEx is used to get better control of the loading +// for the allowed values for flags see LoadLibraryEx documentation. + +function LoadModuleEx(var Module: TModuleHandle; FileName: PChar; Flags: Cardinal): Boolean; +begin + if Module = INVALID_MODULEHANDLE_VALUE then + Module := LoadLibraryEx( FileName, 0, Flags); + Result := Module <> INVALID_MODULEHANDLE_VALUE; +end; + +// unload a DLL loaded with LoadModule or LoadModuleEx +// The procedure will not try to unload a handle with +// value INVALID_MODULEHANDLE_VALUE and assigns this value +// to Module after unload. + +procedure UnloadModule(var Module: TModuleHandle); +begin + if Module <> INVALID_MODULEHANDLE_VALUE then + FreeLibrary(Module); + Module := INVALID_MODULEHANDLE_VALUE; +end; + +// returns the pointer to the symbol named SymbolName +// if it is exported from the DLL Module +// nil is returned if the symbol is not available + +function GetModuleSymbol(Module: TModuleHandle; SymbolName: PChar): Pointer; +begin + Result := nil; + if Module <> INVALID_MODULEHANDLE_VALUE then + Result := GetProcAddress(Module, SymbolName ); +end; + +// returns the pointer to the symbol named SymbolName +// if it is exported from the DLL Module +// nil is returned if the symbol is not available. +// as an extra the boolean variable Accu is updated +// by anding in the success of the function. +// This is very handy for rendering a global result +// when accessing a long list of symbols. + +function GetModuleSymbolEx(Module: TModuleHandle; SymbolName: PChar; var Accu: Boolean): Pointer; +begin + Result := nil; + if Module <> INVALID_MODULEHANDLE_VALUE then + Result := GetProcAddress(Module, SymbolName ); + Accu := Accu and (Result <> nil); +end; + +// get the value of variables exported from a DLL Module +// Delphi cannot access variables in a DLL directly, so +// this function allows to copy the data from the DLL. +// Beware! You are accessing the DLL memory image directly. +// Be sure to access a variable not a function and be sure +// to read the correct amount of data. + +function ReadModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean; +var + Sym: Pointer; +begin + Result := True; + Sym := GetModuleSymbolEx(Module, SymbolName, Result); + if Result then + Move(Sym^, Buffer, Size); +end; + +// set the value of variables exported from a DLL Module +// Delphi cannot access variables in a DLL directly, so +// this function allows to copy the data to the DLL! +// BEWARE! You are accessing the DLL memory image directly. +// Be sure to access a variable not a function and be sure +// to write the correct amount of data. +// The changes are not persistent. They get lost when the +// DLL is unloaded. + +function WriteModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean; +var + Sym: Pointer; +begin + Result := True; + Sym := GetModuleSymbolEx(Module, SymbolName, Result); + if Result then + Move(Buffer, Sym^, Size); +end; + +{$ENDIF} + +{$IFDEF Unix} +uses +{$ifdef Linux} + Types, + Libc; +{$else} + dl, + Types, + Baseunix, + Unix; +{$endif} +type + // Handle to a loaded .so + TModuleHandle = Pointer; + +const + // Value designating an unassigned TModuleHandle od a failed loading + INVALID_MODULEHANDLE_VALUE = TModuleHandle(nil); + +function LoadModule(var Module: TModuleHandle; FileName: PChar): Boolean; +function LoadModuleEx(var Module: TModuleHandle; FileName: PChar; Flags: Cardinal): Boolean; +procedure UnloadModule(var Module: TModuleHandle); +function GetModuleSymbol(Module: TModuleHandle; SymbolName: PChar): Pointer; +function GetModuleSymbolEx(Module: TModuleHandle; SymbolName: PChar; var Accu: Boolean): Pointer; +function ReadModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean; +function WriteModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean; + +implementation + +// load the .so file FileName +// the rules for FileName are those of dlopen() +// Returns: True = success, False = failure to load +// Assigns: the handle of the loaded .so to Module +// Warning: if Module has any other value than INVALID_MODULEHANDLE_VALUE +// on entry the function will do nothing but returning success. + +function LoadModule(var Module: TModuleHandle; FileName: PChar): Boolean; +begin + if Module = INVALID_MODULEHANDLE_VALUE then + Module := dlopen( FileName, RTLD_NOW); + Result := Module <> INVALID_MODULEHANDLE_VALUE; +end; + +// load the .so file FileName +// dlopen() with flags is used to get better control of the loading +// for the allowed values for flags see "man dlopen". + +function LoadModuleEx(var Module: TModuleHandle; FileName: PChar; Flags: Cardinal): Boolean; +begin + if Module = INVALID_MODULEHANDLE_VALUE then + Module := dlopen( FileName, Flags); + Result := Module <> INVALID_MODULEHANDLE_VALUE; +end; + +// unload a .so loaded with LoadModule or LoadModuleEx +// The procedure will not try to unload a handle with +// value INVALID_MODULEHANDLE_VALUE and assigns this value +// to Module after unload. + +procedure UnloadModule(var Module: TModuleHandle); +begin + if Module <> INVALID_MODULEHANDLE_VALUE then + dlclose(Module); + Module := INVALID_MODULEHANDLE_VALUE; +end; + +// returns the pointer to the symbol named SymbolName +// if it is exported from the .so Module +// nil is returned if the symbol is not available + +function GetModuleSymbol(Module: TModuleHandle; SymbolName: PChar): Pointer; +begin + Result := nil; + if Module <> INVALID_MODULEHANDLE_VALUE then + Result := dlsym(Module, SymbolName ); +end; + +// returns the pointer to the symbol named SymbolName +// if it is exported from the .so Module +// nil is returned if the symbol is not available. +// as an extra the boolean variable Accu is updated +// by anding in the success of the function. +// This is very handy for rendering a global result +// when accessing a long list of symbols. + +function GetModuleSymbolEx(Module: TModuleHandle; SymbolName: PChar; var Accu: Boolean): Pointer; +begin + Result := nil; + if Module <> INVALID_MODULEHANDLE_VALUE then + Result := dlsym(Module, SymbolName ); + Accu := Accu and (Result <> nil); +end; + +// get the value of variables exported from a .so Module +// Delphi cannot access variables in a .so directly, so +// this function allows to copy the data from the .so. +// Beware! You are accessing the .so memory image directly. +// Be sure to access a variable not a function and be sure +// to read the correct amount of data. + +function ReadModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean; +var + Sym: Pointer; +begin + Result := True; + Sym := GetModuleSymbolEx(Module, SymbolName, Result); + if Result then + Move(Sym^, Buffer, Size); +end; + +// set the value of variables exported from a .so Module +// Delphi cannot access variables in a .so directly, so +// this function allows to copy the data to the .so! +// BEWARE! You are accessing the .so memory image directly. +// Be sure to access a variable not a function and be sure +// to write the correct amount of data. +// The changes are not persistent. They get lost when the +// .so is unloaded. + +function WriteModuleData(Module: TModuleHandle; SymbolName: PChar; var Buffer; Size: Cardinal): Boolean; +var + Sym: Pointer; +begin + Result := True; + Sym := GetModuleSymbolEx(Module, SymbolName, Result); + if Result then + Move(Buffer, Sym^, Size); +end; +{$ENDIF} + +{$IFDEF __MACH__} // Mach definitions go here +{$ENDIF} + +end. diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/registryuserpreferences.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/registryuserpreferences.pas index 2d28a222..4a5d55f0 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/registryuserpreferences.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/registryuserpreferences.pas @@ -1,229 +1,229 @@ -unit registryuserpreferences;
-{
- $Id: registryuserpreferences.pas,v 1.1 2004/09/30 22:35:47 savage Exp $
-
-}
-{******************************************************************************}
-{ }
-{ JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer }
-{ Wrapper class for Windows Register and INI Files }
-{ }
-{ The initial developer of this Pascal code was : }
-{ Dominqiue Louis <Dominique@SavageSoftware.com.au> }
-{ }
-{ Portions created by Dominqiue Louis are }
-{ Copyright (C) 2000 - 2001 Dominqiue Louis. }
-{ }
-{ }
-{ Contributor(s) }
-{ -------------- }
-{ }
-{ }
-{ Obtained through: }
-{ Joint Endeavour of Delphi Innovators ( Project JEDI ) }
-{ }
-{ You may retrieve the latest version of this file at the Project }
-{ JEDI home page, located at http://delphi-jedi.org }
-{ }
-{ The contents of this file are used with permission, subject to }
-{ the Mozilla Public License Version 1.1 (the "License"); you may }
-{ not use this file except in compliance with the License. You may }
-{ obtain a copy of the License at }
-{ http://www.mozilla.org/MPL/MPL-1.1.html }
-{ }
-{ Software distributed under the License is distributed on an }
-{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or }
-{ implied. See the License for the specific language governing }
-{ rights and limitations under the License. }
-{ }
-{ Description }
-{ ----------- }
-{ }
-{ }
-{ }
-{ }
-{ }
-{ }
-{ }
-{ Requires }
-{ -------- }
-{ The SDL Runtime libraris on Win32 : SDL.dll on Linux : libSDL.so }
-{ They are available from... }
-{ http://www.libsdl.org . }
-{ }
-{ Programming Notes }
-{ ----------------- }
-{ }
-{ }
-{ }
-{ }
-{ Revision History }
-{ ---------------- }
-{ September 23 2004 - DL : Initial Creation }
-{
- $Log: registryuserpreferences.pas,v $
- Revision 1.1 2004/09/30 22:35:47 savage
- Changes, enhancements and additions as required to get SoAoS working.
-
-
-}
-{******************************************************************************}
-
-interface
-
-uses
- {$IFDEF REG}
- Registry,
- {$ELSE}
- IniFiles,
- {$ENDIF}
- Classes,
- userpreferences;
-
-type
- TRegistryUserPreferences = class( TUserPreferences )
- private
-
- protected
- function GetSection( const Index : Integer ) : string; virtual; abstract;
- function GetIdentifier( const Index : Integer ) : string; virtual; abstract;
- function GetDefaultBoolean( const Index : Integer ) : Boolean; override;
- function GetBoolean( const Index : Integer ) : Boolean; override;
- procedure SetBoolean( const Index : Integer; const Value : Boolean ); override;
- function GetDefaultDateTime( const Index : Integer ) : TDateTime; override;
- function GetDateTime( const Index : Integer ) : TDateTime; override;
- procedure SetDateTime( const Index : Integer; const Value : TDateTime ); override;
- function GetDefaultInteger( const Index : Integer ) : Integer; override;
- function GetInteger( const Index : Integer ) : Integer; override;
- procedure SetInteger( const Index : Integer; const Value : Integer ); override;
- function GetDefaultFloat( const Index : Integer ) : single; override;
- function GetFloat( const Index : Integer ) : single; override;
- procedure SetFloat( const Index : Integer; const Value : single ); override;
- function GetDefaultString( const Index : Integer ) : string; override;
- function GetString( const Index : Integer ) : string; override;
- procedure SetString( const Index : Integer; const Value : string ); override;
- public
- Registry : {$IFDEF REG}TRegIniFile{$ELSE}TIniFile{$ENDIF};
- constructor Create( const FileName : string = '' ); reintroduce;
- destructor Destroy; override;
- procedure Update; override;
- end;
-
-implementation
-
-uses
- SysUtils;
-
-{ TRegistryUserPreferences }
-constructor TRegistryUserPreferences.Create( const FileName : string );
-var
- defFileName : string;
-begin
- inherited Create;
-
- if FileName <> '' then
- defFileName := FileName
- else
- defFileName := ChangeFileExt( ParamStr( 0 ), '.ini' );
-
- Registry := {$IFDEF REG}TRegIniFile{$ELSE}TIniFile{$ENDIF}.Create( defFileName );
-end;
-
-destructor TRegistryUserPreferences.Destroy;
-begin
- Update;
- Registry.Free;
- Registry := nil;
- inherited;
-end;
-
-function TRegistryUserPreferences.GetBoolean( const Index : Integer ) : Boolean;
-begin
- Result := Registry.ReadBool( GetSection( Index ), GetIdentifier( Index ), GetDefaultBoolean( Index ) );
-end;
-
-function TRegistryUserPreferences.GetDateTime( const Index : Integer ): TDateTime;
-begin
- Result := Registry.ReadDateTime( GetSection( Index ){$IFNDEF REG}, GetIdentifier( Index ), GetDefaultDateTime( Index ){$ENDIF} );
-end;
-
-function TRegistryUserPreferences.GetDefaultBoolean( const Index : Integer ) : Boolean;
-begin
- result := false;
-end;
-
-function TRegistryUserPreferences.GetDefaultDateTime( const Index: Integer ) : TDateTime;
-begin
- result := Now;
-end;
-
-function TRegistryUserPreferences.GetDefaultFloat( const Index: Integer ) : single;
-begin
- result := 0.0;
-end;
-
-function TRegistryUserPreferences.GetDefaultInteger(const Index : Integer ) : Integer;
-begin
- result := 0;
-end;
-
-function TRegistryUserPreferences.GetDefaultString( const Index : Integer ) : string;
-begin
- result := '';
-end;
-
-function TRegistryUserPreferences.GetFloat( const Index : Integer ): single;
-begin
- Result := Registry.ReadFloat( GetSection( Index ){$IFNDEF REG}, GetIdentifier( Index ), GetDefaultFloat( Index ){$ENDIF} );
-end;
-
-function TRegistryUserPreferences.GetInteger( const Index : Integer ) : Integer;
-begin
- Result := Registry.ReadInteger( GetSection( Index ), GetIdentifier( Index ), GetDefaultInteger( Index ) );
-end;
-
-function TRegistryUserPreferences.GetString( const Index : Integer ): string;
-begin
- Result := Registry.ReadString( GetSection( Index ), GetIdentifier( Index ), GetDefaultString( Index ) );
-end;
-
-procedure TRegistryUserPreferences.SetBoolean( const Index : Integer; const Value : Boolean );
-begin
- Registry.WriteBool( GetSection( Index ), GetIdentifier( Index ), Value );
- inherited;
-end;
-
-procedure TRegistryUserPreferences.SetDateTime( const Index: Integer; const Value: TDateTime );
-begin
- Registry.WriteDateTime( GetSection( Index ){$IFNDEF REG}, GetIdentifier( Index ){$ENDIF}, Value );
- inherited;
-end;
-
-procedure TRegistryUserPreferences.SetFloat(const Index: Integer; const Value: single);
-begin
- Registry.WriteFloat( GetSection( Index ){$IFNDEF REG}, GetIdentifier( Index ){$ENDIF}, Value );
- inherited;
-end;
-
-procedure TRegistryUserPreferences.SetInteger( const Index, Value : Integer );
-begin
- Registry.WriteInteger( GetSection( Index ), GetIdentifier( Index ), Value );
- inherited;
-end;
-
-procedure TRegistryUserPreferences.SetString( const Index : Integer; const Value : string );
-begin
- Registry.WriteString( GetSection( Index ), GetIdentifier( Index ), Value );
- inherited;
-end;
-
-procedure TRegistryUserPreferences.Update;
-begin
- {$IFDEF REG}
- Registry.CloseKey;
- {$ELSE}
- Registry.UpdateFile;
- {$ENDIF}
-end;
-
-end.
+unit registryuserpreferences; +{ + $Id: registryuserpreferences.pas,v 1.1 2004/09/30 22:35:47 savage Exp $ + +} +{******************************************************************************} +{ } +{ JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer } +{ Wrapper class for Windows Register and INI Files } +{ } +{ The initial developer of this Pascal code was : } +{ Dominqiue Louis <Dominique@SavageSoftware.com.au> } +{ } +{ Portions created by Dominqiue Louis are } +{ Copyright (C) 2000 - 2001 Dominqiue Louis. } +{ } +{ } +{ Contributor(s) } +{ -------------- } +{ } +{ } +{ Obtained through: } +{ Joint Endeavour of Delphi Innovators ( Project JEDI ) } +{ } +{ You may retrieve the latest version of this file at the Project } +{ JEDI home page, located at http://delphi-jedi.org } +{ } +{ The contents of this file are used with permission, subject to } +{ the Mozilla Public License Version 1.1 (the "License"); you may } +{ not use this file except in compliance with the License. You may } +{ obtain a copy of the License at } +{ http://www.mozilla.org/MPL/MPL-1.1.html } +{ } +{ Software distributed under the License is distributed on an } +{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } +{ implied. See the License for the specific language governing } +{ rights and limitations under the License. } +{ } +{ Description } +{ ----------- } +{ } +{ } +{ } +{ } +{ } +{ } +{ } +{ Requires } +{ -------- } +{ The SDL Runtime libraris on Win32 : SDL.dll on Linux : libSDL.so } +{ They are available from... } +{ http://www.libsdl.org . } +{ } +{ Programming Notes } +{ ----------------- } +{ } +{ } +{ } +{ } +{ Revision History } +{ ---------------- } +{ September 23 2004 - DL : Initial Creation } +{ + $Log: registryuserpreferences.pas,v $ + Revision 1.1 2004/09/30 22:35:47 savage + Changes, enhancements and additions as required to get SoAoS working. + + +} +{******************************************************************************} + +interface + +uses + {$IFDEF REG} + Registry, + {$ELSE} + IniFiles, + {$ENDIF} + Classes, + userpreferences; + +type + TRegistryUserPreferences = class( TUserPreferences ) + private + + protected + function GetSection( const Index : Integer ) : string; virtual; abstract; + function GetIdentifier( const Index : Integer ) : string; virtual; abstract; + function GetDefaultBoolean( const Index : Integer ) : Boolean; override; + function GetBoolean( const Index : Integer ) : Boolean; override; + procedure SetBoolean( const Index : Integer; const Value : Boolean ); override; + function GetDefaultDateTime( const Index : Integer ) : TDateTime; override; + function GetDateTime( const Index : Integer ) : TDateTime; override; + procedure SetDateTime( const Index : Integer; const Value : TDateTime ); override; + function GetDefaultInteger( const Index : Integer ) : Integer; override; + function GetInteger( const Index : Integer ) : Integer; override; + procedure SetInteger( const Index : Integer; const Value : Integer ); override; + function GetDefaultFloat( const Index : Integer ) : single; override; + function GetFloat( const Index : Integer ) : single; override; + procedure SetFloat( const Index : Integer; const Value : single ); override; + function GetDefaultString( const Index : Integer ) : string; override; + function GetString( const Index : Integer ) : string; override; + procedure SetString( const Index : Integer; const Value : string ); override; + public + Registry : {$IFDEF REG}TRegIniFile{$ELSE}TIniFile{$ENDIF}; + constructor Create( const FileName : string = '' ); reintroduce; + destructor Destroy; override; + procedure Update; override; + end; + +implementation + +uses + SysUtils; + +{ TRegistryUserPreferences } +constructor TRegistryUserPreferences.Create( const FileName : string ); +var + defFileName : string; +begin + inherited Create; + + if FileName <> '' then + defFileName := FileName + else + defFileName := ChangeFileExt( ParamStr( 0 ), '.ini' ); + + Registry := {$IFDEF REG}TRegIniFile{$ELSE}TIniFile{$ENDIF}.Create( defFileName ); +end; + +destructor TRegistryUserPreferences.Destroy; +begin + Update; + Registry.Free; + Registry := nil; + inherited; +end; + +function TRegistryUserPreferences.GetBoolean( const Index : Integer ) : Boolean; +begin + Result := Registry.ReadBool( GetSection( Index ), GetIdentifier( Index ), GetDefaultBoolean( Index ) ); +end; + +function TRegistryUserPreferences.GetDateTime( const Index : Integer ): TDateTime; +begin + Result := Registry.ReadDateTime( GetSection( Index ){$IFNDEF REG}, GetIdentifier( Index ), GetDefaultDateTime( Index ){$ENDIF} ); +end; + +function TRegistryUserPreferences.GetDefaultBoolean( const Index : Integer ) : Boolean; +begin + result := false; +end; + +function TRegistryUserPreferences.GetDefaultDateTime( const Index: Integer ) : TDateTime; +begin + result := Now; +end; + +function TRegistryUserPreferences.GetDefaultFloat( const Index: Integer ) : single; +begin + result := 0.0; +end; + +function TRegistryUserPreferences.GetDefaultInteger(const Index : Integer ) : Integer; +begin + result := 0; +end; + +function TRegistryUserPreferences.GetDefaultString( const Index : Integer ) : string; +begin + result := ''; +end; + +function TRegistryUserPreferences.GetFloat( const Index : Integer ): single; +begin + Result := Registry.ReadFloat( GetSection( Index ){$IFNDEF REG}, GetIdentifier( Index ), GetDefaultFloat( Index ){$ENDIF} ); +end; + +function TRegistryUserPreferences.GetInteger( const Index : Integer ) : Integer; +begin + Result := Registry.ReadInteger( GetSection( Index ), GetIdentifier( Index ), GetDefaultInteger( Index ) ); +end; + +function TRegistryUserPreferences.GetString( const Index : Integer ): string; +begin + Result := Registry.ReadString( GetSection( Index ), GetIdentifier( Index ), GetDefaultString( Index ) ); +end; + +procedure TRegistryUserPreferences.SetBoolean( const Index : Integer; const Value : Boolean ); +begin + Registry.WriteBool( GetSection( Index ), GetIdentifier( Index ), Value ); + inherited; +end; + +procedure TRegistryUserPreferences.SetDateTime( const Index: Integer; const Value: TDateTime ); +begin + Registry.WriteDateTime( GetSection( Index ){$IFNDEF REG}, GetIdentifier( Index ){$ENDIF}, Value ); + inherited; +end; + +procedure TRegistryUserPreferences.SetFloat(const Index: Integer; const Value: single); +begin + Registry.WriteFloat( GetSection( Index ){$IFNDEF REG}, GetIdentifier( Index ){$ENDIF}, Value ); + inherited; +end; + +procedure TRegistryUserPreferences.SetInteger( const Index, Value : Integer ); +begin + Registry.WriteInteger( GetSection( Index ), GetIdentifier( Index ), Value ); + inherited; +end; + +procedure TRegistryUserPreferences.SetString( const Index : Integer; const Value : string ); +begin + Registry.WriteString( GetSection( Index ), GetIdentifier( Index ), Value ); + inherited; +end; + +procedure TRegistryUserPreferences.Update; +begin + {$IFDEF REG} + Registry.CloseKey; + {$ELSE} + Registry.UpdateFile; + {$ENDIF} +end; + +end. diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdl_cpuinfo.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdl_cpuinfo.pas index bd371c55..b09f19f9 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdl_cpuinfo.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdl_cpuinfo.pas @@ -1,155 +1,155 @@ -unit sdl_cpuinfo;
-{
- $Id: sdl_cpuinfo.pas,v 1.2 2004/02/18 22:52:53 savage Exp $
-
-}
-{******************************************************************************}
-{ }
-{ Borland Delphi SDL - Simple DirectMedia Layer }
-{ Conversion of the Simple DirectMedia Layer Headers }
-{ }
-{ Portions created by Sam Lantinga <slouken@devolution.com> are }
-{ Copyright (C) 1997-2004 Sam Lantinga }
-{ 5635-34 Springhouse Dr. }
-{ Pleasanton, CA 94588 (USA) }
-{ }
-{ All Rights Reserved. }
-{ }
-{ The original files are : SDL_cpuinfo.h }
-{ }
-{ The initial developer of this Pascal code was : }
-{ Dominqiue Louis <Dominique@SavageSoftware.com.au> }
-{ }
-{ Portions created by Dominqiue Louis are }
-{ Copyright (C) 2000 - 2004 Dominqiue Louis. }
-{ }
-{ }
-{ Contributor(s) }
-{ -------------- }
-{ Obtained through: }
-{ Joint Endeavour of Delphi Innovators ( Project JEDI ) }
-{ }
-{ You may retrieve the latest version of this file at the Project }
-{ JEDI home page, located at http://delphi-jedi.org }
-{ }
-{ The contents of this file are used with permission, subject to }
-{ the Mozilla Public License Version 1.1 (the "License"); you may }
-{ not use this file except in compliance with the License. You may }
-{ obtain a copy of the License at }
-{ http://www.mozilla.org/MPL/MPL-1.1.html }
-{ }
-{ Software distributed under the License is distributed on an }
-{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or }
-{ implied. See the License for the specific language governing }
-{ rights and limitations under the License. }
-{ }
-{ Description }
-{ ----------- }
-{ }
-{ }
-{ }
-{ }
-{ }
-{ }
-{ }
-{ Requires }
-{ -------- }
-{ The SDL Runtime libraris on Win32 : SDL.dll on Linux : libSDL.so }
-{ They are available from... }
-{ http://www.libsdl.org . }
-{ }
-{ Programming Notes }
-{ ----------------- }
-{ }
-{ }
-{ }
-{ }
-{ Revision History }
-{ ---------------- }
-{
- $Log: sdl_cpuinfo.pas,v $
- Revision 1.2 2004/02/18 22:52:53 savage
- Forgot to add jedi-sdl.inc file. It's there now.
-
- Revision 1.1 2004/02/18 22:35:54 savage
- Brought sdl.pas up to 1.2.7 compatability
- Thus...
- Added SDL_GL_STEREO,
- SDL_GL_MULTISAMPLEBUFFERS,
- SDL_GL_MULTISAMPLESAMPLES
-
- Add DLL/Shared object functions
- function SDL_LoadObject( const sofile : PChar ) : Pointer;
-
- function SDL_LoadFunction( handle : Pointer; const name : PChar ) : Pointer;
-
- procedure SDL_UnloadObject( handle : Pointer );
-
- Added function to create RWops from const memory: SDL_RWFromConstMem()
- function SDL_RWFromConstMem(const mem: Pointer; size: Integer) : PSDL_RWops;
-
- Ported SDL_cpuinfo.h so Now you can test for Specific CPU types.
-
-
-}
-{******************************************************************************}
-
-interface
-
-{$I jedi-sdl.inc}
-
-uses
- sdl;
-
-{* This function returns true if the CPU has the RDTSC instruction
- *}
-function SDL_HasRDTSC : SDL_Bool;
-cdecl; external {$IFDEF __GPC__}name 'SDL_HasRDTSC'{$ELSE} SDLLibName{$ENDIF __GPC__};
-{$EXTERNALSYM SDL_HasRDTSC}
-
-{* This function returns true if the CPU has MMX features
- *}
-function SDL_HasMMX : SDL_Bool;
-cdecl; external {$IFDEF __GPC__}name 'SDL_HasMMX'{$ELSE} SDLLibName{$ENDIF __GPC__};
-{$EXTERNALSYM SDL_HasMMX}
-
-{* This function returns true if the CPU has MMX Ext. features
- *}
-function SDL_HasMMXExt : SDL_Bool;
-cdecl; external {$IFDEF __GPC__}name 'SDL_HasMMXExt'{$ELSE} SDLLibName{$ENDIF __GPC__};
-{$EXTERNALSYM SDL_HasMMXExt}
-
-{* This function returns true if the CPU has 3DNow features
- *}
-function SDL_Has3DNow : SDL_Bool;
-cdecl; external {$IFDEF __GPC__}name 'SDL_Has3DNow'{$ELSE} SDLLibName{$ENDIF __GPC__};
-{$EXTERNALSYM SDL_Has3DNow}
-
-{* This function returns true if the CPU has 3DNow! Ext. features
- *}
-function SDL_Has3DNowExt : SDL_Bool;
-cdecl; external {$IFDEF __GPC__}name 'SDL_Has3DNowExt'{$ELSE} SDLLibName{$ENDIF __GPC__};
-{$EXTERNALSYM SDL_Has3DNowExt}
-
-{* This function returns true if the CPU has SSE features
- *}
-function SDL_HasSSE : SDL_Bool;
-cdecl; external {$IFDEF __GPC__}name 'SDL_HasSSE'{$ELSE} SDLLibName{$ENDIF __GPC__};
-{$EXTERNALSYM SDL_HasSSE}
-
-{* This function returns true if the CPU has SSE2 features
- *}
-function SDL_HasSSE2 : SDL_Bool;
-cdecl; external {$IFDEF __GPC__}name 'SDL_HasSSE2'{$ELSE} SDLLibName{$ENDIF __GPC__};
-{$EXTERNALSYM SDL_HasSSE2}
-
-{* This function returns true if the CPU has AltiVec features
- *}
-function SDL_HasAltiVec : SDL_Bool;
-cdecl; external {$IFDEF __GPC__}name 'SDL_HasAltiVec'{$ELSE} SDLLibName{$ENDIF __GPC__};
-{$EXTERNALSYM SDL_HasAltiVec}
-
-implementation
-
-end.
+unit sdl_cpuinfo; +{ + $Id: sdl_cpuinfo.pas,v 1.2 2004/02/18 22:52:53 savage Exp $ + +} +{******************************************************************************} +{ } +{ Borland Delphi SDL - Simple DirectMedia Layer } +{ Conversion of the Simple DirectMedia Layer Headers } +{ } +{ Portions created by Sam Lantinga <slouken@devolution.com> are } +{ Copyright (C) 1997-2004 Sam Lantinga } +{ 5635-34 Springhouse Dr. } +{ Pleasanton, CA 94588 (USA) } +{ } +{ All Rights Reserved. } +{ } +{ The original files are : SDL_cpuinfo.h } +{ } +{ The initial developer of this Pascal code was : } +{ Dominqiue Louis <Dominique@SavageSoftware.com.au> } +{ } +{ Portions created by Dominqiue Louis are } +{ Copyright (C) 2000 - 2004 Dominqiue Louis. } +{ } +{ } +{ Contributor(s) } +{ -------------- } +{ Obtained through: } +{ Joint Endeavour of Delphi Innovators ( Project JEDI ) } +{ } +{ You may retrieve the latest version of this file at the Project } +{ JEDI home page, located at http://delphi-jedi.org } +{ } +{ The contents of this file are used with permission, subject to } +{ the Mozilla Public License Version 1.1 (the "License"); you may } +{ not use this file except in compliance with the License. You may } +{ obtain a copy of the License at } +{ http://www.mozilla.org/MPL/MPL-1.1.html } +{ } +{ Software distributed under the License is distributed on an } +{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } +{ implied. See the License for the specific language governing } +{ rights and limitations under the License. } +{ } +{ Description } +{ ----------- } +{ } +{ } +{ } +{ } +{ } +{ } +{ } +{ Requires } +{ -------- } +{ The SDL Runtime libraris on Win32 : SDL.dll on Linux : libSDL.so } +{ They are available from... } +{ http://www.libsdl.org . } +{ } +{ Programming Notes } +{ ----------------- } +{ } +{ } +{ } +{ } +{ Revision History } +{ ---------------- } +{ + $Log: sdl_cpuinfo.pas,v $ + Revision 1.2 2004/02/18 22:52:53 savage + Forgot to add jedi-sdl.inc file. It's there now. + + Revision 1.1 2004/02/18 22:35:54 savage + Brought sdl.pas up to 1.2.7 compatability + Thus... + Added SDL_GL_STEREO, + SDL_GL_MULTISAMPLEBUFFERS, + SDL_GL_MULTISAMPLESAMPLES + + Add DLL/Shared object functions + function SDL_LoadObject( const sofile : PChar ) : Pointer; + + function SDL_LoadFunction( handle : Pointer; const name : PChar ) : Pointer; + + procedure SDL_UnloadObject( handle : Pointer ); + + Added function to create RWops from const memory: SDL_RWFromConstMem() + function SDL_RWFromConstMem(const mem: Pointer; size: Integer) : PSDL_RWops; + + Ported SDL_cpuinfo.h so Now you can test for Specific CPU types. + + +} +{******************************************************************************} + +interface + +{$I jedi-sdl.inc} + +uses + sdl; + +{* This function returns true if the CPU has the RDTSC instruction + *} +function SDL_HasRDTSC : SDL_Bool; +cdecl; external {$IFDEF __GPC__}name 'SDL_HasRDTSC'{$ELSE} SDLLibName{$ENDIF __GPC__}; +{$EXTERNALSYM SDL_HasRDTSC} + +{* This function returns true if the CPU has MMX features + *} +function SDL_HasMMX : SDL_Bool; +cdecl; external {$IFDEF __GPC__}name 'SDL_HasMMX'{$ELSE} SDLLibName{$ENDIF __GPC__}; +{$EXTERNALSYM SDL_HasMMX} + +{* This function returns true if the CPU has MMX Ext. features + *} +function SDL_HasMMXExt : SDL_Bool; +cdecl; external {$IFDEF __GPC__}name 'SDL_HasMMXExt'{$ELSE} SDLLibName{$ENDIF __GPC__}; +{$EXTERNALSYM SDL_HasMMXExt} + +{* This function returns true if the CPU has 3DNow features + *} +function SDL_Has3DNow : SDL_Bool; +cdecl; external {$IFDEF __GPC__}name 'SDL_Has3DNow'{$ELSE} SDLLibName{$ENDIF __GPC__}; +{$EXTERNALSYM SDL_Has3DNow} + +{* This function returns true if the CPU has 3DNow! Ext. features + *} +function SDL_Has3DNowExt : SDL_Bool; +cdecl; external {$IFDEF __GPC__}name 'SDL_Has3DNowExt'{$ELSE} SDLLibName{$ENDIF __GPC__}; +{$EXTERNALSYM SDL_Has3DNowExt} + +{* This function returns true if the CPU has SSE features + *} +function SDL_HasSSE : SDL_Bool; +cdecl; external {$IFDEF __GPC__}name 'SDL_HasSSE'{$ELSE} SDLLibName{$ENDIF __GPC__}; +{$EXTERNALSYM SDL_HasSSE} + +{* This function returns true if the CPU has SSE2 features + *} +function SDL_HasSSE2 : SDL_Bool; +cdecl; external {$IFDEF __GPC__}name 'SDL_HasSSE2'{$ELSE} SDLLibName{$ENDIF __GPC__}; +{$EXTERNALSYM SDL_HasSSE2} + +{* This function returns true if the CPU has AltiVec features + *} +function SDL_HasAltiVec : SDL_Bool; +cdecl; external {$IFDEF __GPC__}name 'SDL_HasAltiVec'{$ELSE} SDLLibName{$ENDIF __GPC__}; +{$EXTERNALSYM SDL_HasAltiVec} + +implementation + +end.
\ No newline at end of file diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlgameinterface.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlgameinterface.pas index cc95751d..9a58ff40 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlgameinterface.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlgameinterface.pas @@ -1,202 +1,202 @@ -unit sdlgameinterface;
-{
- $Id: sdlgameinterface.pas,v 1.4 2005/08/03 18:57:31 savage Exp $
-
-}
-{******************************************************************************}
-{ }
-{ JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer }
-{ Game Interface Base class }
-{ }
-{ The initial developer of this Pascal code was : }
-{ Dominqiue Louis <Dominique@SavageSoftware.com.au> }
-{ }
-{ Portions created by Dominqiue Louis are }
-{ Copyright (C) 2000 - 2001 Dominqiue Louis. }
-{ }
-{ }
-{ Contributor(s) }
-{ -------------- }
-{ }
-{ }
-{ Obtained through: }
-{ Joint Endeavour of Delphi Innovators ( Project JEDI ) }
-{ }
-{ You may retrieve the latest version of this file at the Project }
-{ JEDI home page, located at http://delphi-jedi.org }
-{ }
-{ The contents of this file are used with permission, subject to }
-{ the Mozilla Public License Version 1.1 (the "License"); you may }
-{ not use this file except in compliance with the License. You may }
-{ obtain a copy of the License at }
-{ http://www.mozilla.org/MPL/MPL-1.1.html }
-{ }
-{ Software distributed under the License is distributed on an }
-{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or }
-{ implied. See the License for the specific language governing }
-{ rights and limitations under the License. }
-{ }
-{ Description }
-{ ----------- }
-{ }
-{ }
-{ }
-{ }
-{ }
-{ }
-{ }
-{ Requires }
-{ -------- }
-{ The SDL Runtime libraris on Win32 : SDL.dll on Linux : libSDL.so }
-{ They are available from... }
-{ http://www.libsdl.org . }
-{ }
-{ Programming Notes }
-{ ----------------- }
-{ }
-{ }
-{ }
-{ }
-{ Revision History }
-{ ---------------- }
-{ September 23 2004 - DL : Initial Creation }
-{
- $Log: sdlgameinterface.pas,v $
- Revision 1.4 2005/08/03 18:57:31 savage
- Various updates and additions. Mainly to handle OpenGL 3D Window support and better cursor support for the mouse class
-
- Revision 1.3 2004/10/17 18:41:49 savage
- Slight Change to allow Reseting of Input Event handlers
-
- Revision 1.2 2004/09/30 22:35:47 savage
- Changes, enhancements and additions as required to get SoAoS working.
-
-
-}
-{******************************************************************************}
-
-interface
-
-uses
- sdl,
- sdlwindow;
-
-type
- TGameInterfaceClass = class of TGameInterface;
-
- TGameInterface = class( TObject )
- private
- FNextGameInterface : TGameInterfaceClass;
- protected
- Dragging : Boolean;
- Loaded : Boolean;
- procedure FreeSurfaces; virtual;
- procedure Render; virtual; abstract;
- procedure Close; virtual;
- procedure Update( aElapsedTime : single ); virtual;
- procedure MouseDown( Button : Integer; Shift: TSDLMod; MousePos : TPoint ); virtual;
- procedure MouseMove( Shift: TSDLMod; CurrentPos : TPoint; RelativePos : TPoint ); virtual;
- procedure MouseUp( Button : Integer; Shift: TSDLMod; MousePos : TPoint ); virtual;
- procedure MouseWheelScroll( WheelDelta : Integer; Shift: TSDLMod; MousePos : TPoint ); virtual;
- procedure KeyDown( var Key: TSDLKey; Shift: TSDLMod; unicode : UInt16 ); virtual;
- public
- MainWindow : TSDLCustomWindow;
- procedure ResetInputManager;
- procedure LoadSurfaces; virtual;
- function PointIsInRect( Point : TPoint; x, y, x1, y1 : integer ) : Boolean;
- constructor Create( const aMainWindow : TSDLCustomWindow );
- destructor Destroy; override;
- property NextGameInterface : TGameInterfaceClass read FNextGameInterface write FNextGameInterface;
- end;
-
-implementation
-
-{ TGameInterface }
-procedure TGameInterface.Close;
-begin
- FNextGameInterface := nil;
-end;
-
-constructor TGameInterface.Create( const aMainWindow : TSDLCustomWindow );
-begin
- inherited Create;
- MainWindow := aMainWindow;
- FNextGameInterface := TGameInterface;
- ResetInputManager;
-end;
-
-destructor TGameInterface.Destroy;
-begin
- if Loaded then
- FreeSurfaces;
- inherited;
-end;
-
-procedure TGameInterface.FreeSurfaces;
-begin
- Loaded := False;
-end;
-
-procedure TGameInterface.KeyDown(var Key: TSDLKey; Shift: TSDLMod; unicode: UInt16);
-begin
-
-end;
-
-procedure TGameInterface.LoadSurfaces;
-begin
- Loaded := True;
-end;
-
-procedure TGameInterface.MouseDown(Button: Integer; Shift: TSDLMod; MousePos: TPoint);
-begin
- Dragging := True;
-end;
-
-procedure TGameInterface.MouseMove(Shift: TSDLMod; CurrentPos, RelativePos: TPoint);
-begin
-
-end;
-
-procedure TGameInterface.MouseUp(Button: Integer; Shift: TSDLMod; MousePos: TPoint);
-begin
- Dragging := True;
-end;
-
-procedure TGameInterface.MouseWheelScroll(WheelDelta: Integer; Shift: TSDLMod; MousePos: TPoint);
-begin
-
-end;
-
-function TGameInterface.PointIsInRect( Point : TPoint; x, y, x1, y1: integer ): Boolean;
-begin
- if ( Point.x >= x )
- and ( Point.y >= y )
- and ( Point.x <= x1 )
- and ( Point.y <= y1 ) then
- result := true
- else
- result := false;
-end;
-
-procedure TGameInterface.ResetInputManager;
-var
- temp : TSDLNotifyEvent;
-begin
- MainWindow.InputManager.Mouse.OnMouseDown := MouseDown;
- MainWindow.InputManager.Mouse.OnMouseMove := MouseMove;
- MainWindow.InputManager.Mouse.OnMouseUp := MouseUp;
- MainWindow.InputManager.Mouse.OnMouseWheel := MouseWheelScroll;
- MainWindow.InputManager.KeyBoard.OnKeyDown := KeyDown;
- temp := Render;
- MainWindow.OnRender := temp;
- temp := Close;
- MainWindow.OnClose := temp;
- MainWindow.OnUpdate := Update;
-end;
-
-procedure TGameInterface.Update(aElapsedTime: single);
-begin
-
-end;
-
-end.
+unit sdlgameinterface; +{ + $Id: sdlgameinterface.pas,v 1.4 2005/08/03 18:57:31 savage Exp $ + +} +{******************************************************************************} +{ } +{ JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer } +{ Game Interface Base class } +{ } +{ The initial developer of this Pascal code was : } +{ Dominqiue Louis <Dominique@SavageSoftware.com.au> } +{ } +{ Portions created by Dominqiue Louis are } +{ Copyright (C) 2000 - 2001 Dominqiue Louis. } +{ } +{ } +{ Contributor(s) } +{ -------------- } +{ } +{ } +{ Obtained through: } +{ Joint Endeavour of Delphi Innovators ( Project JEDI ) } +{ } +{ You may retrieve the latest version of this file at the Project } +{ JEDI home page, located at http://delphi-jedi.org } +{ } +{ The contents of this file are used with permission, subject to } +{ the Mozilla Public License Version 1.1 (the "License"); you may } +{ not use this file except in compliance with the License. You may } +{ obtain a copy of the License at } +{ http://www.mozilla.org/MPL/MPL-1.1.html } +{ } +{ Software distributed under the License is distributed on an } +{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } +{ implied. See the License for the specific language governing } +{ rights and limitations under the License. } +{ } +{ Description } +{ ----------- } +{ } +{ } +{ } +{ } +{ } +{ } +{ } +{ Requires } +{ -------- } +{ The SDL Runtime libraris on Win32 : SDL.dll on Linux : libSDL.so } +{ They are available from... } +{ http://www.libsdl.org . } +{ } +{ Programming Notes } +{ ----------------- } +{ } +{ } +{ } +{ } +{ Revision History } +{ ---------------- } +{ September 23 2004 - DL : Initial Creation } +{ + $Log: sdlgameinterface.pas,v $ + Revision 1.4 2005/08/03 18:57:31 savage + Various updates and additions. Mainly to handle OpenGL 3D Window support and better cursor support for the mouse class + + Revision 1.3 2004/10/17 18:41:49 savage + Slight Change to allow Reseting of Input Event handlers + + Revision 1.2 2004/09/30 22:35:47 savage + Changes, enhancements and additions as required to get SoAoS working. + + +} +{******************************************************************************} + +interface + +uses + sdl, + sdlwindow; + +type + TGameInterfaceClass = class of TGameInterface; + + TGameInterface = class( TObject ) + private + FNextGameInterface : TGameInterfaceClass; + protected + Dragging : Boolean; + Loaded : Boolean; + procedure FreeSurfaces; virtual; + procedure Render; virtual; abstract; + procedure Close; virtual; + procedure Update( aElapsedTime : single ); virtual; + procedure MouseDown( Button : Integer; Shift: TSDLMod; MousePos : TPoint ); virtual; + procedure MouseMove( Shift: TSDLMod; CurrentPos : TPoint; RelativePos : TPoint ); virtual; + procedure MouseUp( Button : Integer; Shift: TSDLMod; MousePos : TPoint ); virtual; + procedure MouseWheelScroll( WheelDelta : Integer; Shift: TSDLMod; MousePos : TPoint ); virtual; + procedure KeyDown( var Key: TSDLKey; Shift: TSDLMod; unicode : UInt16 ); virtual; + public + MainWindow : TSDLCustomWindow; + procedure ResetInputManager; + procedure LoadSurfaces; virtual; + function PointIsInRect( Point : TPoint; x, y, x1, y1 : integer ) : Boolean; + constructor Create( const aMainWindow : TSDLCustomWindow ); + destructor Destroy; override; + property NextGameInterface : TGameInterfaceClass read FNextGameInterface write FNextGameInterface; + end; + +implementation + +{ TGameInterface } +procedure TGameInterface.Close; +begin + FNextGameInterface := nil; +end; + +constructor TGameInterface.Create( const aMainWindow : TSDLCustomWindow ); +begin + inherited Create; + MainWindow := aMainWindow; + FNextGameInterface := TGameInterface; + ResetInputManager; +end; + +destructor TGameInterface.Destroy; +begin + if Loaded then + FreeSurfaces; + inherited; +end; + +procedure TGameInterface.FreeSurfaces; +begin + Loaded := False; +end; + +procedure TGameInterface.KeyDown(var Key: TSDLKey; Shift: TSDLMod; unicode: UInt16); +begin + +end; + +procedure TGameInterface.LoadSurfaces; +begin + Loaded := True; +end; + +procedure TGameInterface.MouseDown(Button: Integer; Shift: TSDLMod; MousePos: TPoint); +begin + Dragging := True; +end; + +procedure TGameInterface.MouseMove(Shift: TSDLMod; CurrentPos, RelativePos: TPoint); +begin + +end; + +procedure TGameInterface.MouseUp(Button: Integer; Shift: TSDLMod; MousePos: TPoint); +begin + Dragging := True; +end; + +procedure TGameInterface.MouseWheelScroll(WheelDelta: Integer; Shift: TSDLMod; MousePos: TPoint); +begin + +end; + +function TGameInterface.PointIsInRect( Point : TPoint; x, y, x1, y1: integer ): Boolean; +begin + if ( Point.x >= x ) + and ( Point.y >= y ) + and ( Point.x <= x1 ) + and ( Point.y <= y1 ) then + result := true + else + result := false; +end; + +procedure TGameInterface.ResetInputManager; +var + temp : TSDLNotifyEvent; +begin + MainWindow.InputManager.Mouse.OnMouseDown := MouseDown; + MainWindow.InputManager.Mouse.OnMouseMove := MouseMove; + MainWindow.InputManager.Mouse.OnMouseUp := MouseUp; + MainWindow.InputManager.Mouse.OnMouseWheel := MouseWheelScroll; + MainWindow.InputManager.KeyBoard.OnKeyDown := KeyDown; + temp := Render; + MainWindow.OnRender := temp; + temp := Close; + MainWindow.OnClose := temp; + MainWindow.OnUpdate := Update; +end; + +procedure TGameInterface.Update(aElapsedTime: single); +begin + +end; + +end. diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdli386utils.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdli386utils.pas index 9151168a..4de4ebee 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdli386utils.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdli386utils.pas @@ -1,5236 +1,5236 @@ -unit sdli386utils;
-{
- $Id: sdli386utils.pas,v 1.5 2004/06/02 19:38:53 savage Exp $
-
-}
-{******************************************************************************}
-{ }
-{ Borland Delphi SDL - Simple DirectMedia Layer }
-{ SDL Utility functions }
-{ }
-{ }
-{ The initial developer of this Pascal code was : }
-{ Tom Jones <tigertomjones@gmx.de> }
-{ }
-{ Portions created by Tom Jones are }
-{ Copyright (C) 2000 - 2001 Tom Jones. }
-{ }
-{ }
-{ Contributor(s) }
-{ -------------- }
-{ Dominique Louis <Dominique@SavageSoftware.com.au> }
-{ Róbert Kisnémeth <mikrobi@freemail.hu> }
-{ }
-{ Obtained through: }
-{ Joint Endeavour of Delphi Innovators ( Project JEDI ) }
-{ }
-{ You may retrieve the latest version of this file at the Project }
-{ JEDI home page, located at http://delphi-jedi.org }
-{ }
-{ The contents of this file are used with permission, subject to }
-{ the Mozilla Public License Version 1.1 (the "License"); you may }
-{ not use this file except in compliance with the License. You may }
-{ obtain a copy of the License at }
-{ http://www.mozilla.org/MPL/MPL-1.1.html }
-{ }
-{ Software distributed under the License is distributed on an }
-{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or }
-{ implied. See the License for the specific language governing }
-{ rights and limitations under the License. }
-{ }
-{ Description }
-{ ----------- }
-{ Helper functions... }
-{ }
-{ }
-{ Requires }
-{ -------- }
-{ SDL.dll on Windows platforms }
-{ libSDL-1.1.so.0 on Linux platform }
-{ }
-{ Programming Notes }
-{ ----------------- }
-{ }
-{ }
-{ }
-{ }
-{ Revision History }
-{ ---------------- }
-{ 2000 - TJ : Initial creation }
-{ }
-{ July 13 2001 - DL : Added PutPixel and GetPixel routines. }
-{ }
-{ Sept 14 2001 - RK : Added flipping routines. }
-{ }
-{ Sept 19 2001 - RK : Added PutPixel & line drawing & blitting with ADD }
-{ effect. Fixed a bug in SDL_PutPixel & SDL_GetPixel }
-{ Added PSDLRect() }
-{ Sept 22 2001 - DL : Removed need for Windows.pas by defining types here}
-{ Also removed by poor attempt or a dialog box }
-{ }
-{ Sept 25 2001 - RK : Added PixelTest, NewPutPixel, SubPixel, SubLine, }
-{ SubSurface, MonoSurface & TexturedSurface }
-{ }
-{ Sept 26 2001 - DL : Made change so that it refers to native Pascal }
-{ types rather that Windows types. This makes it more}
-{ portable to Linix. }
-{ }
-{ Sept 27 2001 - RK : SDLUtils now can be compiled with FreePascal }
-{ }
-{ Oct 27 2001 - JF : Added ScrollY function }
-{ }
-{ Jan 21 2002 - RK : Added SDL_ZoomSurface and SDL_WarpSurface }
-{ }
-{ Mar 28 2002 - JF : Added SDL_RotateSurface }
-{ }
-{ May 13 2002 - RK : Improved SDL_FillRectAdd & SDL_FillRectSub }
-{ }
-{ May 27 2002 - YS : GradientFillRect function }
-{ }
-{ May 30 2002 - RK : Added SDL_2xBlit, SDL_Scanline2xBlit }
-{ & SDL_50Scanline2xBlit }
-{ }
-{ June 12 2002 - RK : Added SDL_PixelTestSurfaceVsRect }
-{ }
-{ June 12 2002 - JF : Updated SDL_PixelTestSurfaceVsRect }
-{ }
-{ November 9 2002 - JF : Added Jason's boolean Surface functions }
-{ }
-{ December 10 2002 - DE : Added Dean's SDL_ClipLine function }
-{ }
-{******************************************************************************}
-{
- $Log: sdli386utils.pas,v $
- Revision 1.5 2004/06/02 19:38:53 savage
- Changes to SDL_GradientFillRect as suggested by
- Ángel Eduardo García Hernández. Many thanks.
-
- Revision 1.4 2004/05/29 23:11:53 savage
- Changes to SDL_ScaleSurfaceRect as suggested by
- Ángel Eduardo García Hernández to fix a colour issue with the function. Many thanks.
-
- Revision 1.3 2004/02/20 22:04:11 savage
- Added Changes as mentioned by Rodrigo "Rui" R. (1/2 RRC2Soft) to facilitate FPC compilation and it also works in Delphi. Also syncronized the funcitons so that they are identical to sdlutils.pas, when no assembly version is available.
-
- Revision 1.2 2004/02/14 00:23:39 savage
- As UNIX is defined in jedi-sdl.inc this will be used to check linux compatability as well. Units have been changed to reflect this change.
-
- Revision 1.1 2004/02/05 00:08:20 savage
- Module 1.0 release
-
-
-}
-
-interface
-
-{$i jedi-sdl.inc}
-
-uses
-{$IFDEF UNIX}
- Types,
- Xlib,
-{$ENDIF}
- SysUtils,
- sdl;
-
-type
- TGradientStyle = ( gsHorizontal, gsVertical );
-
- // Pixel procedures
-function SDL_PixelTest( SrcSurface1 : PSDL_Surface; SrcRect1 : PSDL_Rect; SrcSurface2 :
- PSDL_Surface; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) : Boolean;
-
-function SDL_GetPixel( SrcSurface : PSDL_Surface; x : cardinal; y : cardinal ) : Uint32;
-
-procedure SDL_PutPixel( SrcSurface : PSDL_Surface; x : integer; y : integer; Color :
- cardinal );
-
-procedure SDL_AddPixel( SrcSurface : PSDL_Surface; x : integer; y : integer; Color :
- cardinal );
-
-procedure SDL_SubPixel( SrcSurface : PSDL_Surface; x : integer; y : integer; Color :
- cardinal );
-
-// Line procedures
-procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal );overload;
-
-procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal ; DashLength, DashSpace : byte ); overload;
-
-procedure SDL_AddLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal );
-
-procedure SDL_SubLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal );
-
-// Surface procedures
-procedure SDL_AddSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DstSurface : PSDL_Surface; DestRect : PSDL_Rect );
-
-procedure SDL_SubSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DstSurface : PSDL_Surface; DestRect : PSDL_Rect );
-
-procedure SDL_MonoSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DstSurface : PSDL_Surface; DestRect : PSDL_Rect; Color : cardinal );
-
-procedure SDL_TexturedSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DstSurface : PSDL_Surface; DestRect : PSDL_Rect; Texture : PSDL_Surface;
- TextureRect : PSDL_Rect );
-
-procedure SDL_ZoomSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; DstRect : PSDL_Rect );
-
-procedure SDL_WarpSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; UL, UR, LR, LL : PPoint );
-
-// Flip procedures
-procedure SDL_FlipRectH( DstSurface : PSDL_Surface; Rect : PSDL_Rect );
-
-procedure SDL_FlipRectV( DstSurface : PSDL_Surface; Rect : PSDL_Rect );
-
-function PSDLRect( aLeft, aTop, aWidth, aHeight : integer ) : PSDL_Rect;
-
-function SDLRect( aLeft, aTop, aWidth, aHeight : integer ) : TSDL_Rect; overload;
-
-function SDLRect( aRect : TRect ) : TSDL_Rect; overload;
-
-function SDL_ScaleSurfaceRect( SrcSurface : PSDL_Surface; SrcX1, SrcY1, SrcW, SrcH,
- Width, Height : integer ) : PSDL_Surface;
-
-procedure SDL_ScrollY( DstSurface : PSDL_Surface; DifY : integer );
-
-procedure SDL_ScrollX( DstSurface : PSDL_Surface; DifX : integer );
-
-procedure SDL_RotateDeg( DstSurface, SrcSurface : PSDL_Surface; SrcRect :
- PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Integer );
-
-procedure SDL_RotateRad( DstSurface, SrcSurface : PSDL_Surface; SrcRect :
- PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Single );
-
-function ValidateSurfaceRect( DstSurface : PSDL_Surface; dstrect : PSDL_Rect ) : TSDL_Rect;
-
-// Fill Rect routine
-procedure SDL_FillRectAdd( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 );
-
-procedure SDL_FillRectSub( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 );
-
-procedure SDL_GradientFillRect( DstSurface : PSDL_Surface; const Rect : PSDL_Rect; const StartColor, EndColor : TSDL_Color; const Style : TGradientStyle );
-
-// NOTE for All SDL_2xblit... function : the dest surface must be 2x of the source surface!
-procedure SDL_2xBlit( Src, Dest : PSDL_Surface );
-
-procedure SDL_Scanline2xBlit( Src, Dest : PSDL_Surface );
-
-procedure SDL_50Scanline2xBlit( Src, Dest : PSDL_Surface );
-
-function SDL_PixelTestSurfaceVsRect( SrcSurface1 : PSDL_Surface; SrcRect1 :
-PSDL_Rect; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) :
-boolean;
-
-// Jason's boolean Surface functions
-procedure SDL_ORSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-
-procedure SDL_ANDSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-
-procedure SDL_GTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-
-procedure SDL_LTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-
-function SDL_ClipLine(var x1,y1,x2,y2: Integer; ClipRect: PSDL_Rect) : boolean;
-
-implementation
-
-uses
- Math;
-
-function SDL_PixelTest( SrcSurface1 : PSDL_Surface; SrcRect1 : PSDL_Rect; SrcSurface2 :
- PSDL_Surface; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) : boolean;
-var
- Src_Rect1, Src_Rect2 : TSDL_Rect;
- right1, bottom1 : integer;
- right2, bottom2 : integer;
- Scan1Start, Scan2Start, ScanWidth, ScanHeight : cardinal;
- Mod1, Mod2 : cardinal;
- Addr1, Addr2 : cardinal;
- BPP : cardinal;
- Pitch1, Pitch2 : cardinal;
- TransparentColor1, TransparentColor2 : cardinal;
- tx, ty : cardinal;
- StartTick : cardinal;
- Color1, Color2 : cardinal;
-begin
- Result := false;
- if SrcRect1 = nil then
- begin
- with Src_Rect1 do
- begin
- x := 0;
- y := 0;
- w := SrcSurface1.w;
- h := SrcSurface1.h;
- end;
- end
- else
- Src_Rect1 := SrcRect1^;
- if SrcRect2 = nil then
- begin
- with Src_Rect2 do
- begin
- x := 0;
- y := 0;
- w := SrcSurface2.w;
- h := SrcSurface2.h;
- end;
- end
- else
- Src_Rect2 := SrcRect2^;
- with Src_Rect1 do
- begin
- Right1 := Left1 + w;
- Bottom1 := Top1 + h;
- end;
- with Src_Rect2 do
- begin
- Right2 := Left2 + w;
- Bottom2 := Top2 + h;
- end;
- if ( Left1 >= Right2 ) or ( Right1 <= Left2 ) or ( Top1 >= Bottom2 ) or ( Bottom1 <=
- Top2 ) then
- exit;
- if Left1 <= Left2 then
- begin
- // 1. left, 2. right
- Scan1Start := Src_Rect1.x + Left2 - Left1;
- Scan2Start := Src_Rect2.x;
- ScanWidth := Right1 - Left2;
- with Src_Rect2 do
- if ScanWidth > w then
- ScanWidth := w;
- end
- else
- begin
- // 1. right, 2. left
- Scan1Start := Src_Rect1.x;
- Scan2Start := Src_Rect2.x + Left1 - Left2;
- ScanWidth := Right2 - Left1;
- with Src_Rect1 do
- if ScanWidth > w then
- ScanWidth := w;
- end;
- with SrcSurface1^ do
- begin
- Pitch1 := Pitch;
- Addr1 := cardinal( Pixels );
- inc( Addr1, Pitch1 * UInt32( Src_Rect1.y ) );
- with format^ do
- begin
- BPP := BytesPerPixel;
- TransparentColor1 := colorkey;
- end;
- end;
- with SrcSurface2^ do
- begin
- TransparentColor2 := format.colorkey;
- Pitch2 := Pitch;
- Addr2 := cardinal( Pixels );
- inc( Addr2, Pitch2 * UInt32( Src_Rect2.y ) );
- end;
- Mod1 := Pitch1 - ( ScanWidth * BPP );
- Mod2 := Pitch2 - ( ScanWidth * BPP );
- inc( Addr1, BPP * Scan1Start );
- inc( Addr2, BPP * Scan2Start );
- if Top1 <= Top2 then
- begin
- // 1. up, 2. down
- ScanHeight := Bottom1 - Top2;
- if ScanHeight > Src_Rect2.h then
- ScanHeight := Src_Rect2.h;
- inc( Addr1, Pitch1 * UInt32( Top2 - Top1 ) );
- end
- else
- begin
- // 1. down, 2. up
- ScanHeight := Bottom2 - Top1;
- if ScanHeight > Src_Rect1.h then
- ScanHeight := Src_Rect1.h;
- inc( Addr2, Pitch2 * UInt32( Top1 - Top2 ) );
- end;
- case BPP of
- 1 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- if ( PByte( Addr1 )^ <> TransparentColor1 ) and ( PByte( Addr2 )^ <>
- TransparentColor2 ) then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1 );
- inc( Addr2 );
- end;
- inc( Addr1, Mod1 );
- inc( Addr2, Mod2 );
- end;
- 2 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- if ( PWord( Addr1 )^ <> TransparentColor1 ) and ( PWord( Addr2 )^ <>
- TransparentColor2 ) then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1, 2 );
- inc( Addr2, 2 );
- end;
- inc( Addr1, Mod1 );
- inc( Addr2, Mod2 );
- end;
- 3 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- Color1 := PLongWord( Addr1 )^ and $00FFFFFF;
- Color2 := PLongWord( Addr2 )^ and $00FFFFFF;
- if ( Color1 <> TransparentColor1 ) and ( Color2 <> TransparentColor2 )
- then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1, 3 );
- inc( Addr2, 3 );
- end;
- inc( Addr1, Mod1 );
- inc( Addr2, Mod2 );
- end;
- 4 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- if ( PLongWord( Addr1 )^ <> TransparentColor1 ) and ( PLongWord( Addr2 )^ <>
- TransparentColor2 ) then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1, 4 );
- inc( Addr2, 4 );
- end;
- inc( Addr1, Mod1 );
- inc( Addr2, Mod2 );
- end;
- end;
-end;
-
-function SDL_GetPixel( SrcSurface : PSDL_Surface; x : cardinal; y : cardinal ) : Uint32;
-var
- bpp : UInt32;
- p : PInteger;
-begin
- bpp := SrcSurface.format.BytesPerPixel;
- // Here p is the address to the pixel we want to retrieve
- p := Pointer( Uint32( SrcSurface.pixels ) + UInt32( y ) * SrcSurface.pitch + UInt32( x ) *
- bpp );
- case bpp of
- 1 : result := PUint8( p )^;
- 2 : result := PUint16( p )^;
- 3 :
- if ( SDL_BYTEORDER = SDL_BIG_ENDIAN ) then
- result := PUInt8Array( p )[ 0 ] shl 16 or PUInt8Array( p )[ 1 ] shl 8 or
- PUInt8Array( p )[ 2 ]
- else
- result := PUInt8Array( p )[ 0 ] or PUInt8Array( p )[ 1 ] shl 8 or
- PUInt8Array( p )[ 2 ] shl 16;
- 4 : result := PUint32( p )^;
- else
- result := 0; // shouldn't happen, but avoids warnings
- end;
-end;
-
-procedure SDL_PutPixel( SrcSurface : PSDL_Surface; x : integer; y : integer; Color :
- cardinal );
-var
- Addr, Pitch, BPP : cardinal;
-begin
- Addr := cardinal( SrcSurface.Pixels );
- Pitch := SrcSurface.Pitch;
- BPP := SrcSurface.format.BytesPerPixel;
- asm
- mov eax, y
- mul Pitch // EAX := y * Pitch
- add Addr, eax // Addr:= Addr + (y * Pitch)
- mov eax, x
- mov ecx, Color
- cmp BPP, 1
- jne @Not1BPP
- add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x
- mov [eax], cl
- jmp @Quit
- @Not1BPP:
- cmp BPP, 2
- jne @Not2BPP
- mul BPP // EAX := x * BPP
- add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x * BPP
- mov [eax], cx
- jmp @Quit
- @Not2BPP:
- cmp BPP, 3
- jne @Not3BPP
- mul BPP // EAX := x * BPP
- add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x * BPP
- mov edx, [eax]
- and edx, $ff000000
- or edx, ecx
- mov [eax], edx
- jmp @Quit
- @Not3BPP:
- mul BPP // EAX := x * BPP
- add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x * BPP
- mov [eax], ecx
- @Quit:
- end;
-end;
-
-procedure SDL_AddPixel( SrcSurface : PSDL_Surface; x : integer; y : integer; Color :
- cardinal );
-var
- SrcColor, FinalColor : cardinal;
- Addr, Pitch, Bits : cardinal;
-begin
- if Color = 0 then
- exit;
- Addr := cardinal( SrcSurface.Pixels );
- Pitch := SrcSurface.Pitch;
- Bits := SrcSurface.format.BitsPerPixel;
- asm
- mov eax, y
- mul Pitch // EAX := y * Pitch
- add Addr, eax // Addr:= Addr + (y * Pitch)
- mov eax, x
- cmp Bits, 8
- jne @Not8bit
- add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x
- mov cl, [eax]
- movzx ecx, cl
- mov SrcColor, ecx
- mov edx, Color
- and ecx, 3
- and edx, 3
- add ecx, edx
- cmp ecx, 3
- jbe @Skip1_8bit
- mov ecx, 3
- @Skip1_8bit:
- mov FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $1c
- and edx, $1c
- add ecx, edx
- cmp ecx, $1c
- jbe @Skip2_8bit
- mov ecx, $1c
- @Skip2_8bit:
- or FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $e0
- and edx, $e0
- add ecx, edx
- cmp ecx, $e0
- jbe @Skip3_8bit
- mov ecx, $e0
- @Skip3_8bit:
- or ecx, FinalColor
- mov [eax], cl
- jmp @Quit
- @Not8bit:
- cmp Bits, 15
- jne @Not15bit
- shl eax, 1
- add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x * 2
- mov ecx, [eax]
- and ecx, $00007fff
- mov SrcColor, ecx
- mov edx, Color
- and ecx, $1f
- and edx, $1f
- add ecx, edx
- cmp ecx, $1f
- jbe @Skip1_15bit
- mov ecx, $1f
- @Skip1_15bit:
- mov FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $03e0
- and edx, $03e0
- add ecx, edx
- cmp ecx, $03e0
- jbe @Skip2_15bit
- mov ecx, $03e0
- @Skip2_15bit:
- or FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $7c00
- and edx, $7c00
- add ecx, edx
- cmp ecx, $7c00
- jbe @Skip3_15bit
- mov ecx, $7c00
- @Skip3_15bit:
- or ecx, FinalColor
- mov [eax], cx
- jmp @Quit
- @Not15Bit:
- cmp Bits, 16
- jne @Not16bit
- shl eax, 1
- add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x * 2
- mov ecx, [eax]
- and ecx, $0000ffff
- mov SrcColor, ecx
- mov edx, Color
- and ecx, $1f
- and edx, $1f
- add ecx, edx
- cmp ecx, $1f
- jbe @Skip1_16bit
- mov ecx, $1f
- @Skip1_16bit:
- mov FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $07e0
- and edx, $07e0
- add ecx, edx
- cmp ecx, $07e0
- jbe @Skip2_16bit
- mov ecx, $07e0
- @Skip2_16bit:
- or FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $f800
- and edx, $f800
- add ecx, edx
- cmp ecx, $f800
- jbe @Skip3_16bit
- mov ecx, $f800
- @Skip3_16bit:
- or ecx, FinalColor
- mov [eax], cx
- jmp @Quit
- @Not16Bit:
- cmp Bits, 24
- jne @Not24bit
- mov ecx, 0
- add ecx, eax
- shl ecx, 1
- add ecx, eax
- mov eax, ecx
- jmp @32bit
- @Not24bit:
- shl eax, 2
- @32bit:
- add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x * 2
- mov ecx, [eax]
- mov FinalColor, ecx
- and FinalColor, $ff000000
- and ecx, $00ffffff
- mov SrcColor, ecx
- mov edx, Color
- and ecx, $000000ff
- and edx, $000000ff
- add ecx, edx
- cmp ecx, $000000ff
- jbe @Skip1_32bit
- mov ecx, $000000ff
- @Skip1_32bit:
- or FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $0000ff00
- and edx, $0000ff00
- add ecx, edx
- cmp ecx, $0000ff00
- jbe @Skip2_32bit
- mov ecx, $0000ff00
- @Skip2_32bit:
- or FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $00ff0000
- and edx, $00ff0000
- add ecx, edx
- cmp ecx, $00ff0000
- jbe @Skip3_32bit
- mov ecx, $00ff0000
- @Skip3_32bit:
- or ecx, FinalColor
- mov [eax], ecx
- @Quit:
- end;
-end;
-
-procedure SDL_SubPixel( SrcSurface : PSDL_Surface; x : integer; y : integer; Color :
- cardinal );
-var
- SrcColor, FinalColor : cardinal;
- Addr, Pitch, Bits : cardinal;
-begin
- if Color = 0 then
- exit;
- Addr := cardinal( SrcSurface.Pixels );
- Pitch := SrcSurface.Pitch;
- Bits := SrcSurface.format.BitsPerPixel;
- asm
- mov eax, y
- mul Pitch // EAX := y * Pitch
- add Addr, eax // Addr:= Addr + (y * Pitch)
- mov eax, x
- cmp Bits, 8
- jne @Not8bit
- add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x
- mov cl, [eax]
- movzx ecx, cl
- mov SrcColor, ecx
- mov edx, Color
- and ecx, 3
- and edx, 3
- sub ecx, edx
- jns @Skip1_8bit
- mov ecx, 0
- @Skip1_8bit:
- mov FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $1c
- and edx, $1c
- sub ecx, edx
- jns @Skip2_8bit
- mov ecx, 0
- @Skip2_8bit:
- or FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $e0
- and edx, $e0
- sub ecx, edx
- jns @Skip3_8bit
- mov ecx, 0
- @Skip3_8bit:
- or ecx, FinalColor
- mov [eax], cl
- jmp @Quit
- @Not8bit:
- cmp Bits, 15
- jne @Not15bit
- shl eax, 1
- add eax, Addr
- mov ecx, [eax]
- and ecx, $00007fff
- mov SrcColor, ecx
- mov edx, Color
- and ecx, $1f
- and edx, $1f
- sub ecx, edx
- jns @Skip1_15bit
- mov ecx, 0
- @Skip1_15bit:
- mov FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $03e0
- and edx, $03e0
- sub ecx, edx
- jns @Skip2_15bit
- mov ecx, 0
- @Skip2_15bit:
- or FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $7c00
- and edx, $7c00
- sub ecx, edx
- jns @Skip3_15bit
- mov ecx, 0
- @Skip3_15bit:
- or ecx, FinalColor
- mov [eax], cx
- jmp @Quit
- @Not15Bit:
- cmp Bits, 16
- jne @Not16bit
- shl eax, 1
- add eax, Addr
- mov ecx, [eax]
- and ecx, $0000ffff
- mov SrcColor, ecx
- mov edx, Color
- and ecx, $1f
- and edx, $1f
- sub ecx, edx
- jns @Skip1_16bit
- mov ecx, 0
- @Skip1_16bit:
- mov FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $07e0
- and edx, $07e0
- sub ecx, edx
- jns @Skip2_16bit
- mov ecx, 0
- @Skip2_16bit:
- or FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $f800
- and edx, $f800
- sub ecx, edx
- jns @Skip3_16bit
- mov ecx, 0
- @Skip3_16bit:
- or ecx, FinalColor
- mov [eax], cx
- jmp @Quit
- @Not16Bit:
- cmp Bits, 24
- jne @Not24bit
- mov ecx, 0
- add ecx, eax
- shl ecx, 1
- add ecx, eax
- mov eax, ecx
- jmp @32bit
- @Not24bit:
- shl eax, 2
- @32bit:
- add eax, Addr
- mov ecx, [eax]
- mov FinalColor, ecx
- and FinalColor, $ff000000
- and ecx, $00ffffff
- mov SrcColor, ecx
- mov edx, Color
- and ecx, $000000ff
- and edx, $000000ff
- sub ecx, edx
- jns @Skip1_32bit
- mov ecx, 0
- @Skip1_32bit:
- or FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $0000ff00
- and edx, $0000ff00
- sub ecx, edx
- jns @Skip2_32bit
- mov ecx, 0
- @Skip2_32bit:
- or FinalColor, ecx
- mov ecx, SrcColor
- mov edx, Color
- and ecx, $00ff0000
- and edx, $00ff0000
- sub ecx, edx
- jns @Skip3_32bit
- mov ecx, 0
- @Skip3_32bit:
- or ecx, FinalColor
- mov [eax], ecx
- @Quit:
- end;
-end;
-
-// Draw a line between x1,y1 and x2,y2 to the given surface
-// NOTE: The surface must be locked before calling this!
-procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal );
-var
- dx, dy, sdx, sdy, x, y, px, py : integer;
-begin
- dx := x2 - x1;
- dy := y2 - y1;
- if dx < 0 then
- sdx := -1
- else
- sdx := 1;
- if dy < 0 then
- sdy := -1
- else
- sdy := 1;
- dx := sdx * dx + 1;
- dy := sdy * dy + 1;
- x := 0;
- y := 0;
- px := x1;
- py := y1;
- if dx >= dy then
- begin
- for x := 0 to dx - 1 do
- begin
- SDL_PutPixel( DstSurface, px, py, Color );
- y := y + dy;
- if y >= dx then
- begin
- y := y - dx;
- py := py + sdy;
- end;
- px := px + sdx;
- end;
- end
- else
- begin
- for y := 0 to dy - 1 do
- begin
- SDL_PutPixel( DstSurface, px, py, Color );
- x := x + dx;
- if x >= dy then
- begin
- x := x - dy;
- px := px + sdx;
- end;
- py := py + sdy;
- end;
- end;
-end;
-
-// Draw a dashed line between x1,y1 and x2,y2 to the given surface
-// NOTE: The surface must be locked before calling this!
-procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal ; DashLength, DashSpace : byte ); overload;
-var
- dx, dy, sdx, sdy, x, y, px, py, counter : integer; drawdash : boolean;
-begin
- counter := 0;
- drawdash := true; //begin line drawing with dash
-
- //Avoid invalid user-passed dash parameters
- if (DashLength < 1)
- then DashLength := 1;
- if (DashSpace < 1)
- then DashSpace := 0;
-
- dx := x2 - x1;
- dy := y2 - y1;
- if dx < 0 then
- sdx := -1
- else
- sdx := 1;
- if dy < 0 then
- sdy := -1
- else
- sdy := 1;
- dx := sdx * dx + 1;
- dy := sdy * dy + 1;
- x := 0;
- y := 0;
- px := x1;
- py := y1;
- if dx >= dy then
- begin
- for x := 0 to dx - 1 do
- begin
-
- //Alternate drawing dashes, or leaving spaces
- if drawdash then
- begin
- SDL_PutPixel( DstSurface, px, py, Color );
- inc(counter);
- if (counter > DashLength-1) and (DashSpace > 0) then
- begin
- drawdash := false;
- counter := 0;
- end;
- end
- else //space
- begin
- inc(counter);
- if counter > DashSpace-1 then
- begin
- drawdash := true;
- counter := 0;
- end;
- end;
-
- y := y + dy;
- if y >= dx then
- begin
- y := y - dx;
- py := py + sdy;
- end;
- px := px + sdx;
- end;
- end
- else
- begin
- for y := 0 to dy - 1 do
- begin
-
- //Alternate drawing dashes, or leaving spaces
- if drawdash then
- begin
- SDL_PutPixel( DstSurface, px, py, Color );
- inc(counter);
- if (counter > DashLength-1) and (DashSpace > 0) then
- begin
- drawdash := false;
- counter := 0;
- end;
- end
- else //space
- begin
- inc(counter);
- if counter > DashSpace-1 then
- begin
- drawdash := true;
- counter := 0;
- end;
- end;
-
- x := x + dx;
- if x >= dy then
- begin
- x := x - dy;
- px := px + sdx;
- end;
- py := py + sdy;
- end;
- end;
-end;
-
-procedure SDL_AddLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal );
-var
- dx, dy, sdx, sdy, x, y, px, py : integer;
-begin
- dx := x2 - x1;
- dy := y2 - y1;
- if dx < 0 then
- sdx := -1
- else
- sdx := 1;
- if dy < 0 then
- sdy := -1
- else
- sdy := 1;
- dx := sdx * dx + 1;
- dy := sdy * dy + 1;
- x := 0;
- y := 0;
- px := x1;
- py := y1;
- if dx >= dy then
- begin
- for x := 0 to dx - 1 do
- begin
- SDL_AddPixel( DstSurface, px, py, Color );
- y := y + dy;
- if y >= dx then
- begin
- y := y - dx;
- py := py + sdy;
- end;
- px := px + sdx;
- end;
- end
- else
- begin
- for y := 0 to dy - 1 do
- begin
- SDL_AddPixel( DstSurface, px, py, Color );
- x := x + dx;
- if x >= dy then
- begin
- x := x - dy;
- px := px + sdx;
- end;
- py := py + sdy;
- end;
- end;
-end;
-
-procedure SDL_SubLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal );
-var
- dx, dy, sdx, sdy, x, y, px, py : integer;
-begin
- dx := x2 - x1;
- dy := y2 - y1;
- if dx < 0 then
- sdx := -1
- else
- sdx := 1;
- if dy < 0 then
- sdy := -1
- else
- sdy := 1;
- dx := sdx * dx + 1;
- dy := sdy * dy + 1;
- x := 0;
- y := 0;
- px := x1;
- py := y1;
- if dx >= dy then
- begin
- for x := 0 to dx - 1 do
- begin
- SDL_SubPixel( DstSurface, px, py, Color );
- y := y + dy;
- if y >= dx then
- begin
- y := y - dx;
- py := py + sdy;
- end;
- px := px + sdx;
- end;
- end
- else
- begin
- for y := 0 to dy - 1 do
- begin
- SDL_SubPixel( DstSurface, px, py, Color );
- x := x + dx;
- if x >= dy then
- begin
- x := x - dy;
- px := px + sdx;
- end;
- py := py + sdy;
- end;
- end;
-end;
-
-// This procedure works on 8, 15, 16, 24 and 32 bits color depth surfaces.
-// In 8 bit color depth mode the procedure works with the default packed
-// palette (RRRGGGBB). It handles all clipping.
-procedure SDL_AddSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DstSurface : PSDL_Surface; DestRect : PSDL_Rect );
-var
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr : cardinal;
- // TransparentColor: cardinal;
- _ebx, _esi, _edi, _esp : cardinal;
- WorkX, WorkY : word;
- SrcMod, DestMod : cardinal;
- Bits : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DstSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DstSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DstSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- // TransparentColor := format.ColorKey;
- end;
- with DstSurface^ do
- begin
- DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- Bits := Format.BitsPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DstSurface );
- case bits of
- 8 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov al, [esi] // AL := source color
- cmp al, 0
- je @SkipColor // if AL=0 or AL=transparent color then skip everything
- mov esp, eax // ESP - source color
- mov bl, [edi] // BL := destination color
- mov dl, bl // DL := destination color
- and ax, $03 // Adding BLUE
- and bl, $03
- add al, bl
- cmp al, $03
- jbe @Skip1
- mov al, $03
- @Skip1:
- mov cl, al
- mov eax, esp // Adding GREEN
- mov bl, dl
- and al, $1c
- and bl, $1c
- add al, bl
- cmp al, $1c
- jbe @Skip2
- mov al, $1c
- @Skip2:
- or cl, al
- mov eax, esp // Adding RED
- mov bl, dl
- and ax, $e0
- and bx, $e0
- add ax, bx
- cmp ax, $e0
- jbe @Skip3
- mov al, $e0
- @Skip3:
- or cl, al
- mov [edi], cl
- @SkipColor:
- inc esi
- inc edi
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 15 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov ax, [esi] // AX := source color
- cmp ax, 0
- je @SkipColor // if AX=0 then skip everything
- mov esp, eax // ESP - source color
- mov bx, [edi] // BX := destination color
- mov dx, bx // DX := destination color
- and ax, $001F // Adding BLUE
- and bx, $001F
- add ax, bx
- cmp ax, $001F
- jbe @Skip1
- mov ax, $001F
- @Skip1:
- mov cx, ax
- mov eax, esp // Adding GREEN
- mov bx, dx
- and ax, $3E0
- and bx, $3E0
- add ax, bx
- cmp ax, $3E0
- jbe @Skip2
- mov ax, $3E0
- @Skip2:
- or cx, ax
- mov eax, esp // Adding RED
- mov bx, dx
- and ax, $7C00
- and bx, $7C00
- add ax, bx
- cmp ax, $7C00
- jbe @Skip3
- mov ax, $7C00
- @Skip3:
- or cx, ax
- mov [edi], cx
- @SkipColor:
- add esi, 2
- add edi, 2
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 16 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov ax, [esi] // AX := source color
- cmp ax, 0
- je @SkipColor // if AX=0 then skip everything
- mov esp, eax // ESP - source color
- mov bx, [edi] // BX := destination color
- mov dx, bx // DX := destination color
- and ax, $1F // Adding BLUE
- and bx, $1F
- add ax, bx
- cmp ax, $1F
- jbe @Skip1
- mov ax, $1F
- @Skip1:
- mov cx, ax
- mov eax, esp // Adding GREEN
- mov bx, dx
- and ax, $7E0
- and bx, $7E0
- add ax, bx
- cmp ax, $7E0
- jbe @Skip2
- mov ax, $7E0
- @Skip2:
- or cx, ax
- mov eax, esp // Adding RED
- mov bx, dx
- and eax, $F800
- and ebx, $F800
- add eax, ebx
- cmp eax, $F800
- jbe @Skip3
- mov ax, $F800
- @Skip3:
- or cx, ax
- mov [edi], cx
- @SkipColor:
- add esi, 2
- add edi, 2
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 24 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- add WorkX, ax // WorkX := Src.w * 2
- add WorkX, ax // WorkX := Src.w * 3
- @Loopx:
- mov bl, [edi] // BX := destination color
- mov al, [esi] // AX := source color
- cmp al, 0
- je @Skip // if AL=0 then skip COMPONENT
- mov ah, 0 // AX := COLOR COMPONENT
- mov bh, 0
- add bx, ax
- cmp bx, $00ff
- jb @Skip
- mov bl, $ff
- @Skip:
- mov [edi], bl
- inc esi
- inc edi
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 32 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- shl ax, 2
- mov WorkX, ax // WorkX := Src.w * 4
- @Loopx:
- mov bl, [edi] // BX := destination color
- mov al, [esi] // AX := source color
- cmp al, 0
- je @Skip // if AL=0 then skip COMPONENT
- mov ah, 0 // AX := COLOR COMPONENT
- mov bh, 0
- add bx, ax
- cmp bx, $00ff
- jb @Skip
- mov bl, $ff
- @Skip:
- mov [edi], bl
- inc esi
- inc edi
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DstSurface );
-end;
-
-procedure SDL_SubSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DstSurface : PSDL_Surface; DestRect : PSDL_Rect );
-var
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr : cardinal;
- _ebx, _esi, _edi, _esp : cardinal;
- WorkX, WorkY : word;
- SrcMod, DestMod : cardinal;
- Bits : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DstSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DstSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DstSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- end;
- with DstSurface^ do
- begin
- DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- Bits := DstSurface.Format.BitsPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DstSurface );
- case bits of
- 8 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov al, [esi] // AL := source color
- cmp al, 0
- je @SkipColor // if AL=0 then skip everything
- mov esp, eax // ESP - source color
- mov bl, [edi] // BL := destination color
- mov dl, bl // DL := destination color
- and al, $03 // Subtract BLUE
- and bl, $03
- sub bl, al
- jns @Skip1
- mov bl, 0
- @Skip1:
- mov cl, bl
- mov eax, esp // Subtract GREEN
- mov bl, dl
- and al, $1c
- and bl, $1c
- sub bl, al
- jns @Skip2
- mov bl, 0
- @Skip2:
- or cl, bl
- mov eax, esp // Subtract RED
- mov bl, dl
- and ax, $e0
- and bx, $e0
- sub bx, ax
- jns @Skip3
- mov bl, 0
- @Skip3:
- or cl, bl
- mov [edi], cl
- @SkipColor:
- inc esi
- inc edi
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 15 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov ax, [esi] // AX := source color
- cmp ax, 0
- je @SkipColor // if AX=0 then skip everything
- mov esp, eax // ESP - source color
- mov bx, [edi] // BX := destination color
- mov dx, bx // DX := destination color
- and ax, $001F // Subtract BLUE
- and bx, $001F
- sub bx, ax
- jns @Skip1
- mov bx, 0
- @Skip1:
- mov cx, bx
- mov eax, esp // Subtract GREEN
- mov bx, dx
- and ax, $3E0
- and bx, $3E0
- sub bx, ax
- jns @Skip2
- mov bx, 0
- @Skip2:
- or cx, bx
- mov eax, esp // Subtract RED
- mov bx, dx
- and ax, $7C00
- and bx, $7C00
- sub bx, ax
- jns @Skip3
- mov bx, 0
- @Skip3:
- or cx, bx
- mov [edi], cx
- @SkipColor:
- add esi, 2
- add edi, 2
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 16 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov ax, [esi] // AX := source color
- cmp ax, 0
- je @SkipColor // if AX=0 then skip everything
- mov esp, eax // ESP - source color
- mov bx, [edi] // BX := destination color
- mov dx, bx // DX := destination color
- and ax, $1F // Subtracting BLUE
- and bx, $1F
- sub bx, ax
- jns @Skip1
- mov bx, 0
- @Skip1:
- mov cx, bx
- mov eax, esp // Adding GREEN
- mov bx, dx
- and ax, $7E0
- and bx, $7E0
- sub bx, ax
- jns @Skip2
- mov bx, 0
- @Skip2:
- or cx, bx
- mov eax, esp // Adding RED
- mov bx, dx
- and eax, $F800
- and ebx, $F800
- sub ebx, eax
- jns @Skip3
- mov bx, 0
- @Skip3:
- or cx, bx
- mov [edi], cx
- @SkipColor:
- add esi, 2
- add edi, 2
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 24 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- add WorkX, ax // WorkX := Src.w * 2
- add WorkX, ax // WorkX := Src.w * 3
- @Loopx:
- mov bl, [edi] // BX := destination color
- mov al, [esi] // AX := source color
- cmp al, 0
- je @Skip // if AL=0 then skip COMPONENT
- mov ah, 0 // AX := COLOR COMPONENT
- mov bh, 0
- sub bx, ax
- jns @Skip
- mov bl, 0
- @Skip:
- mov [edi], bl
- inc esi
- inc edi
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 32 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- shl ax, 2
- mov WorkX, ax // WorkX := Src.w * 4
- @Loopx:
- mov bl, [edi] // BX := destination color
- mov al, [esi] // AX := source color
- cmp al, 0
- je @Skip // if AL=0 then skip COMPONENT
- mov ah, 0 // AX := COLOR COMPONENT
- mov bh, 0
- sub bx, ax
- jns @Skip
- mov bl, 0
- @Skip:
- mov [edi], bl
- inc esi
- inc edi
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DstSurface );
-end;
-
-procedure SDL_MonoSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DstSurface : PSDL_Surface; DestRect : PSDL_Rect; Color : cardinal );
-var
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr : cardinal;
- _ebx, _esi, _edi, _esp : cardinal;
- WorkX, WorkY : word;
- SrcMod, DestMod : cardinal;
- SrcTransparentColor : cardinal;
- Bits : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DstSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DstSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DstSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- SrcTransparentColor := format.colorkey;
- end;
- with DstSurface^ do
- begin
- DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- Bits := DstSurface.Format.BitsPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DstSurface );
- case bits of
- 8 :
- asm
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- mov ecx, Color
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov al, [esi] // AL := source color
- movzx eax, al
- cmp eax, SrcTransparentColor
- je @SkipColor // if AL=Transparent color then skip everything
- mov [edi], cl
- @SkipColor:
- inc esi
- inc edi
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- end;
- 15, 16 :
- asm
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- mov ecx, Color
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov ax, [esi] // AX := source color
- movzx eax, ax
- cmp eax, SrcTransparentColor
- je @SkipColor // if AX=Transparent color then skip everything
- mov [edi], cx
- @SkipColor:
- inc esi
- inc esi
- inc edi
- inc edi
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- end;
- 24 :
- asm
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov _ebx, ebx
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- mov ecx, Color
- and ecx, $00ffffff
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov eax, [esi] // EAX := source color
- and eax, $00ffffff
- cmp eax, SrcTransparentColor
- je @SkipColor // if EAX=Transparent color then skip everything
- mov ebx, [edi]
- and ebx, $ff000000
- or ebx, ecx
- mov [edi], ecx
- @SkipColor:
- add esi, 3
- add edi, 3
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp, _esp
- mov edi, _edi
- mov esi, _esi
- mov ebx, _ebx
- end;
- 32 :
- asm
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- mov ecx, Color
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov eax, [esi] // EAX := source color
- cmp eax, SrcTransparentColor
- je @SkipColor // if EAX=Transparent color then skip everything
- mov [edi], ecx
- @SkipColor:
- add esi, 4
- add edi, 4
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp, _esp
- mov edi, _edi
- mov esi, _esi
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DstSurface );
-end;
-// TextureRect.w and TextureRect.h are not used.
-// The TextureSurface's size MUST larger than the drawing rectangle!!!
-
-procedure SDL_TexturedSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DstSurface : PSDL_Surface; DestRect : PSDL_Rect; Texture : PSDL_Surface;
- TextureRect : PSDL_Rect );
-var
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr, TextAddr : cardinal;
- _ebx, _esi, _edi, _esp : cardinal;
- WorkX, WorkY : word;
- SrcMod, DestMod, TextMod : cardinal;
- SrcTransparentColor : cardinal;
- Bits : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DstSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DstSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DstSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- SrcTransparentColor := format.colorkey;
- end;
- with DstSurface^ do
- begin
- DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- Bits := DstSurface.Format.BitsPerPixel;
- end;
- with Texture^ do
- begin
- TextAddr := cardinal( Pixels ) + UInt32( TextureRect.y ) * Pitch +
- UInt32( TextureRect.x ) * Format.BytesPerPixel;
- TextMod := Pitch - Src.w * Format.BytesPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DstSurface );
- SDL_LockSurface( Texture );
- case bits of
- 8 :
- asm
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov _ebx, ebx
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ebx, TextAddr
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov al, [esi] // AL := source color
- movzx eax, al
- cmp eax, SrcTransparentColor
- je @SkipColor // if AL=Transparent color then skip everything
- mov al, [ebx]
- mov [edi], al
- @SkipColor:
- inc esi
- inc edi
- inc ebx
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- add ebx, TextMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx, _ebx
- end;
- 15, 16 :
- asm
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ecx, TextAddr
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov ax, [esi] // AL := source color
- movzx eax, ax
- cmp eax, SrcTransparentColor
- je @SkipColor // if AL=Transparent color then skip everything
- mov ax, [ecx]
- mov [edi], ax
- @SkipColor:
- inc esi
- inc esi
- inc edi
- inc edi
- inc ecx
- inc ecx
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- add ecx, TextMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- end;
- 24 :
- asm
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov _ebx, ebx
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ebx, TextAddr
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov eax, [esi] // AL := source color
- and eax, $00ffffff
- cmp eax, SrcTransparentColor
- je @SkipColor // if AL=Transparent color then skip everything
- mov eax, [ebx]
- and eax, $00ffffff
- mov ecx, [edi]
- and ecx, $ff000000
- or ecx, eax
- mov [edi], eax
- @SkipColor:
- add esi, 3
- add edi, 3
- add ebx, 3
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- add ebx, TextMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx, _ebx
- end;
- 32 :
- asm
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ecx, TextAddr
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov eax, [esi] // AL := source color
- cmp eax, SrcTransparentColor
- je @SkipColor // if AL=Transparent color then skip everything
- mov eax, [ecx]
- mov [edi], eax
- @SkipColor:
- add esi, 4
- add edi, 4
- add ecx, 4
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- add ecx, TextMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DstSurface );
- SDL_UnlockSurface( Texture );
-end;
-
-procedure SDL_ZoomSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; DstRect : PSDL_Rect );
-var
- xc, yc : cardinal;
- rx, wx, ry, wy, ry16 : cardinal;
- color : cardinal;
- modx, mody : cardinal;
-begin
- // Warning! No checks for surface pointers!!!
- if srcrect = nil then
- srcrect := @SrcSurface.clip_rect;
- if dstrect = nil then
- dstrect := @DstSurface.clip_rect;
- if SDL_MustLock( SrcSurface ) then
- SDL_LockSurface( SrcSurface );
- if SDL_MustLock( DstSurface ) then
- SDL_LockSurface( DstSurface );
- modx := trunc( ( srcrect.w / dstrect.w ) * 65536 );
- mody := trunc( ( srcrect.h / dstrect.h ) * 65536 );
- //rx := srcrect.x * 65536;
- ry := srcrect.y * 65536;
- wy := dstrect.y;
- for yc := 0 to dstrect.h - 1 do
- begin
- rx := srcrect.x * 65536;
- wx := dstrect.x;
- ry16 := ry shr 16;
- for xc := 0 to dstrect.w - 1 do
- begin
- color := SDL_GetPixel( SrcSurface, rx shr 16, ry16 );
- SDL_PutPixel( DstSurface, wx, wy, color );
- rx := rx + modx;
- inc( wx );
- end;
- ry := ry + mody;
- inc( wy );
- end;
- if SDL_MustLock( SrcSurface ) then
- SDL_UnlockSurface( SrcSurface );
- if SDL_MustLock( DstSurface ) then
- SDL_UnlockSurface( DstSurface );
-end;
-// Re-map a rectangular area into an area defined by four vertices
-// Converted from C to Pascal by KiCHY
-
-procedure SDL_WarpSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; UL, UR, LR, LL : PPoint );
-const
- SHIFTS = 15; // Extend ints to limit round-off error (try 2 - 20)
- THRESH = 1 shl SHIFTS; // Threshold for pixel size value
- procedure CopySourceToDest( UL, UR, LR, LL : TPoint; x1, y1, x2, y2 : cardinal );
- var
- tm, lm, rm, bm, m : TPoint;
- mx, my : cardinal;
- cr : cardinal;
- begin
- // Does the destination area specify a single pixel?
- if ( ( abs( ul.x - ur.x ) < THRESH ) and
- ( abs( ul.x - lr.x ) < THRESH ) and
- ( abs( ul.x - ll.x ) < THRESH ) and
- ( abs( ul.y - ur.y ) < THRESH ) and
- ( abs( ul.y - lr.y ) < THRESH ) and
- ( abs( ul.y - ll.y ) < THRESH ) ) then
- begin // Yes
- cr := SDL_GetPixel( SrcSurface, ( x1 shr SHIFTS ), ( y1 shr SHIFTS ) );
- SDL_PutPixel( DstSurface, ( ul.x shr SHIFTS ), ( ul.y shr SHIFTS ), cr );
- end
- else
- begin // No
- // Quarter the source and the destination, and then recurse
- tm.x := ( ul.x + ur.x ) shr 1;
- tm.y := ( ul.y + ur.y ) shr 1;
- bm.x := ( ll.x + lr.x ) shr 1;
- bm.y := ( ll.y + lr.y ) shr 1;
- lm.x := ( ul.x + ll.x ) shr 1;
- lm.y := ( ul.y + ll.y ) shr 1;
- rm.x := ( ur.x + lr.x ) shr 1;
- rm.y := ( ur.y + lr.y ) shr 1;
- m.x := ( tm.x + bm.x ) shr 1;
- m.y := ( tm.y + bm.y ) shr 1;
- mx := ( x1 + x2 ) shr 1;
- my := ( y1 + y2 ) shr 1;
- CopySourceToDest( ul, tm, m, lm, x1, y1, mx, my );
- CopySourceToDest( tm, ur, rm, m, mx, y1, x2, my );
- CopySourceToDest( m, rm, lr, bm, mx, my, x2, y2 );
- CopySourceToDest( lm, m, bm, ll, x1, my, mx, y2 );
- end;
- end;
-var
- _UL, _UR, _LR, _LL : TPoint;
- Rect_x, Rect_y, Rect_w, Rect_h : integer;
-begin
- if SDL_MustLock( SrcSurface ) then
- SDL_LockSurface( SrcSurface );
- if SDL_MustLock( DstSurface ) then
- SDL_LockSurface( DstSurface );
- if SrcRect = nil then
- begin
- Rect_x := 0;
- Rect_y := 0;
- Rect_w := ( SrcSurface.w - 1 ) shl SHIFTS;
- Rect_h := ( SrcSurface.h - 1 ) shl SHIFTS;
- end
- else
- begin
- Rect_x := SrcRect.x;
- Rect_y := SrcRect.y;
- Rect_w := ( SrcRect.w - 1 ) shl SHIFTS;
- Rect_h := ( SrcRect.h - 1 ) shl SHIFTS;
- end;
- // Shift all values to help reduce round-off error.
- _ul.x := ul.x shl SHIFTS;
- _ul.y := ul.y shl SHIFTS;
- _ur.x := ur.x shl SHIFTS;
- _ur.y := ur.y shl SHIFTS;
- _lr.x := lr.x shl SHIFTS;
- _lr.y := lr.y shl SHIFTS;
- _ll.x := ll.x shl SHIFTS;
- _ll.y := ll.y shl SHIFTS;
- CopySourceToDest( _ul, _ur, _lr, _ll, Rect_x, Rect_y, Rect_w, Rect_h );
- if SDL_MustLock( SrcSurface ) then
- SDL_UnlockSurface( SrcSurface );
- if SDL_MustLock( DstSurface ) then
- SDL_UnlockSurface( DstSurface );
-end;
-
-// flips a rectangle vertically on given surface
-procedure SDL_FlipRectV( DstSurface : PSDL_Surface; Rect : PSDL_Rect );
-var
- TmpRect : TSDL_Rect;
- Locked : boolean;
- y, FlipLength, RowLength : integer;
- Row1, Row2 : Pointer;
- OneRow : TByteArray; // Optimize it if you wish
-begin
- if DstSurface <> nil then
- begin
- if Rect = nil then
- begin // if Rect=nil then we flip the whole surface
- TmpRect := SDLRect( 0, 0, DstSurface.w, DstSurface.h );
- Rect := @TmpRect;
- end;
- FlipLength := Rect^.h shr 1 - 1;
- RowLength := Rect^.w * DstSurface^.format.BytesPerPixel;
- if SDL_MustLock( DstSurface ) then
- begin
- Locked := true;
- SDL_LockSurface( DstSurface );
- end
- else
- Locked := false;
- Row1 := pointer( cardinal( DstSurface^.Pixels ) + UInt32( Rect^.y ) *
- DstSurface^.Pitch );
- Row2 := pointer( cardinal( DstSurface^.Pixels ) + ( UInt32( Rect^.y ) + Rect^.h - 1 )
- * DstSurface^.Pitch );
- for y := 0 to FlipLength do
- begin
- Move( Row1^, OneRow, RowLength );
- Move( Row2^, Row1^, RowLength );
- Move( OneRow, Row2^, RowLength );
- inc( cardinal( Row1 ), DstSurface^.Pitch );
- dec( cardinal( Row2 ), DstSurface^.Pitch );
- end;
- if Locked then
- SDL_UnlockSurface( DstSurface );
- end;
-end;
-
-// flips a rectangle horizontally on given surface
-procedure SDL_FlipRectH( DstSurface : PSDL_Surface; Rect : PSDL_Rect );
-type
- T24bit = packed array[ 0..2 ] of byte;
- T24bitArray = packed array[ 0..8191 ] of T24bit;
- P24bitArray = ^T24bitArray;
- TLongWordArray = array[ 0..8191 ] of LongWord;
- PLongWordArray = ^TLongWordArray;
-var
- TmpRect : TSDL_Rect;
- Row8bit : PByteArray;
- Row16bit : PWordArray;
- Row24bit : P24bitArray;
- Row32bit : PLongWordArray;
- y, x, RightSide, FlipLength : integer;
- Pixel : cardinal;
- Pixel24 : T24bit;
- Locked : boolean;
-begin
- if DstSurface <> nil then
- begin
- if Rect = nil then
- begin
- TmpRect := SDLRect( 0, 0, DstSurface.w, DstSurface.h );
- Rect := @TmpRect;
- end;
- FlipLength := Rect^.w shr 1 - 1;
- if SDL_MustLock( DstSurface ) then
- begin
- Locked := true;
- SDL_LockSurface( DstSurface );
- end
- else
- Locked := false;
- case DstSurface^.format.BytesPerPixel of
- 1 :
- begin
- Row8Bit := pointer( cardinal( DstSurface^.pixels ) + UInt32( Rect^.y ) *
- DstSurface^.pitch );
- for y := 1 to Rect^.h do
- begin
- RightSide := Rect^.w - 1;
- for x := 0 to FlipLength do
- begin
- Pixel := Row8Bit^[ x ];
- Row8Bit^[ x ] := Row8Bit^[ RightSide ];
- Row8Bit^[ RightSide ] := Pixel;
- dec( RightSide );
- end;
- inc( cardinal( Row8Bit ), DstSurface^.pitch );
- end;
- end;
- 2 :
- begin
- Row16Bit := pointer( cardinal( DstSurface^.pixels ) + UInt32( Rect^.y ) *
- DstSurface^.pitch );
- for y := 1 to Rect^.h do
- begin
- RightSide := Rect^.w - 1;
- for x := 0 to FlipLength do
- begin
- Pixel := Row16Bit^[ x ];
- Row16Bit^[ x ] := Row16Bit^[ RightSide ];
- Row16Bit^[ RightSide ] := Pixel;
- dec( RightSide );
- end;
- inc( cardinal( Row16Bit ), DstSurface^.pitch );
- end;
- end;
- 3 :
- begin
- Row24Bit := pointer( cardinal( DstSurface^.pixels ) + UInt32( Rect^.y ) *
- DstSurface^.pitch );
- for y := 1 to Rect^.h do
- begin
- RightSide := Rect^.w - 1;
- for x := 0 to FlipLength do
- begin
- Pixel24 := Row24Bit^[ x ];
- Row24Bit^[ x ] := Row24Bit^[ RightSide ];
- Row24Bit^[ RightSide ] := Pixel24;
- dec( RightSide );
- end;
- inc( cardinal( Row24Bit ), DstSurface^.pitch );
- end;
- end;
- 4 :
- begin
- Row32Bit := pointer( cardinal( DstSurface^.pixels ) + UInt32( Rect^.y ) *
- DstSurface^.pitch );
- for y := 1 to Rect^.h do
- begin
- RightSide := Rect^.w - 1;
- for x := 0 to FlipLength do
- begin
- Pixel := Row32Bit^[ x ];
- Row32Bit^[ x ] := Row32Bit^[ RightSide ];
- Row32Bit^[ RightSide ] := Pixel;
- dec( RightSide );
- end;
- inc( cardinal( Row32Bit ), DstSurface^.pitch );
- end;
- end;
- end;
- if Locked then
- SDL_UnlockSurface( DstSurface );
- end;
-end;
-
-// Use with caution! The procedure allocates memory for TSDL_Rect and return with its pointer.
-// But you MUST free it after you don't need it anymore!!!
-function PSDLRect( aLeft, aTop, aWidth, aHeight : integer ) : PSDL_Rect;
-var
- Rect : PSDL_Rect;
-begin
- New( Rect );
- with Rect^ do
- begin
- x := aLeft;
- y := aTop;
- w := aWidth;
- h := aHeight;
- end;
- Result := Rect;
-end;
-
-function SDLRect( aLeft, aTop, aWidth, aHeight : integer ) : TSDL_Rect;
-begin
- with result do
- begin
- x := aLeft;
- y := aTop;
- w := aWidth;
- h := aHeight;
- end;
-end;
-
-function SDLRect( aRect : TRect ) : TSDL_Rect;
-begin
- with aRect do
- result := SDLRect( Left, Top, Right - Left, Bottom - Top );
-end;
-
-procedure SDL_Stretch8( Surface, Dst_Surface : PSDL_Surface; x1, x2, y1, y2, yr, yw,
- depth : integer );
-var
- dx, dy, e, d, dx2 : integer;
- src_pitch, dst_pitch : uint16;
- src_pixels, dst_pixels : PUint8;
-begin
- if ( yw >= dst_surface^.h ) then
- exit;
- dx := ( x2 - x1 );
- dy := ( y2 - y1 );
- dy := dy shl 1;
- e := dy - dx;
- dx2 := dx shl 1;
- src_pitch := Surface^.pitch;
- dst_pitch := dst_surface^.pitch;
- src_pixels := PUint8( integer( Surface^.pixels ) + yr * src_pitch + y1 * depth );
- dst_pixels := PUint8( integer( dst_surface^.pixels ) + yw * dst_pitch + x1 *
- depth );
- for d := 0 to dx - 1 do
- begin
- move( src_pixels^, dst_pixels^, depth );
- while ( e >= 0 ) do
- begin
- inc( src_pixels, depth );
- e := e - dx2;
- end;
- inc( dst_pixels, depth );
- e := e + dy;
- end;
-end;
-
-function sign( x : integer ) : integer;
-begin
- if x > 0 then
- result := 1
- else
- result := -1;
-end;
-
-// Stretches a part of a surface
-function SDL_ScaleSurfaceRect( SrcSurface : PSDL_Surface; SrcX1, SrcY1, SrcW, SrcH,
- Width, Height : integer ) : PSDL_Surface;
-var
- dst_surface : PSDL_Surface;
- dx, dy, e, d, dx2, srcx2, srcy2 : integer;
- destx1, desty1 : integer;
-begin
- srcx2 := srcx1 + SrcW;
- srcy2 := srcy1 + SrcH;
- result := nil;
- destx1 := 0;
- desty1 := 0;
- dx := abs( integer( Height - desty1 ) );
- dy := abs( integer( SrcY2 - SrcY1 ) );
- e := ( dy shl 1 ) - dx;
- dx2 := dx shl 1;
- dy := dy shl 1;
- dst_surface := SDL_CreateRGBSurface( SDL_HWPALETTE, width - destx1, Height -
- desty1,
- SrcSurface^.Format^.BitsPerPixel,
- SrcSurface^.Format^.RMask,
- SrcSurface^.Format^.GMask,
- SrcSurface^.Format^.BMask,
- SrcSurface^.Format^.AMask );
- if ( dst_surface^.format^.BytesPerPixel = 1 ) then
- SDL_SetColors( dst_surface, @SrcSurface^.format^.palette^.colors^[ 0 ], 0, 256 );
- SDL_SetColorKey( dst_surface, sdl_srccolorkey, SrcSurface^.format^.colorkey );
- if ( SDL_MustLock( dst_surface ) ) then
- if ( SDL_LockSurface( dst_surface ) < 0 ) then
- exit;
- for d := 0 to dx - 1 do
- begin
- SDL_Stretch8( SrcSurface, dst_surface, destx1, Width, SrcX1, SrcX2, SrcY1, desty1,
- SrcSurface^.format^.BytesPerPixel );
- while e >= 0 do
- begin
- inc( SrcY1 );
- e := e - dx2;
- end;
- inc( desty1 );
- e := e + dy;
- end;
- if SDL_MUSTLOCK( dst_surface ) then
- SDL_UnlockSurface( dst_surface );
- result := dst_surface;
-end;
-
-procedure SDL_ScrollY( DstSurface : PSDL_Surface; DifY : integer );
-var
- r1, r2 : TSDL_Rect;
- //buffer: PSDL_Surface;
- YPos : Integer;
-begin
- if ( DstSurface <> nil ) and ( DifY <> 0 ) then
- begin
- //if DifY > 0 then // going up
- //begin
- ypos := 0;
- r1.x := 0;
- r2.x := 0;
- r1.w := DstSurface.w;
- r2.w := DstSurface.w;
- r1.h := DifY;
- r2.h := DifY;
- while ypos < DstSurface.h do
- begin
- r1.y := ypos;
- r2.y := ypos + DifY;
- SDL_BlitSurface( DstSurface, @r2, DstSurface, @r1 );
- ypos := ypos + DifY;
- end;
- //end
- //else
- //begin // Going Down
- //end;
- end;
-end;
-
-procedure SDL_ScrollX( DstSurface : PSDL_Surface; DifX : integer );
-var
- r1, r2 : TSDL_Rect;
- buffer : PSDL_Surface;
-begin
- if ( DstSurface <> nil ) and ( DifX <> 0 ) then
- begin
- buffer := SDL_CreateRGBSurface( SDL_HWSURFACE, ( DstSurface^.w - DifX ) * 2,
- DstSurface^.h * 2,
- DstSurface^.Format^.BitsPerPixel,
- DstSurface^.Format^.RMask,
- DstSurface^.Format^.GMask,
- DstSurface^.Format^.BMask,
- DstSurface^.Format^.AMask );
- if buffer <> nil then
- begin
- if ( buffer^.format^.BytesPerPixel = 1 ) then
- SDL_SetColors( buffer, @DstSurface^.format^.palette^.colors^[ 0 ], 0, 256 );
- r1 := SDLRect( DifX, 0, buffer^.w, buffer^.h );
- r2 := SDLRect( 0, 0, buffer^.w, buffer^.h );
- SDL_BlitSurface( DstSurface, @r1, buffer, @r2 );
- SDL_BlitSurface( buffer, @r2, DstSurface, @r2 );
- SDL_FreeSurface( buffer );
- end;
- end;
-end;
-
-procedure SDL_RotateRad( DstSurface, SrcSurface : PSDL_Surface; SrcRect :
- PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Single );
-var
- aSin, aCos : Single;
- MX, MY, DX, DY, NX, NY, SX, SY, OX, OY, Width, Height, TX, TY, RX, RY, ROX, ROY : Integer;
- Colour, TempTransparentColour : UInt32;
- MAXX, MAXY : Integer;
-begin
- // Rotate the surface to the target surface.
- TempTransparentColour := SrcSurface.format.colorkey;
- if srcRect.w > srcRect.h then
- begin
- Width := srcRect.w;
- Height := srcRect.w;
- end
- else
- begin
- Width := srcRect.h;
- Height := srcRect.h;
- end;
-
- maxx := DstSurface.w;
- maxy := DstSurface.h;
- aCos := cos( Angle );
- aSin := sin( Angle );
-
- Width := round( abs( srcrect.h * acos ) + abs( srcrect.w * asin ) );
- Height := round( abs( srcrect.h * asin ) + abs( srcrect.w * acos ) );
-
- OX := Width div 2;
- OY := Height div 2; ;
- MX := ( srcRect.x + ( srcRect.x + srcRect.w ) ) div 2;
- MY := ( srcRect.y + ( srcRect.y + srcRect.h ) ) div 2;
- ROX := ( -( srcRect.w div 2 ) ) + Offsetx;
- ROY := ( -( srcRect.h div 2 ) ) + OffsetY;
- Tx := ox + round( ROX * aSin - ROY * aCos );
- Ty := oy + round( ROY * aSin + ROX * aCos );
- SX := 0;
- for DX := DestX - TX to DestX - TX + ( width ) do
- begin
- Inc( SX );
- SY := 0;
- for DY := DestY - TY to DestY - TY + ( Height ) do
- begin
- RX := SX - OX;
- RY := SY - OY;
- NX := round( mx + RX * aSin + RY * aCos ); //
- NY := round( my + RY * aSin - RX * aCos ); //
- // Used for testing only
- //SDL_PutPixel(DstSurface.SDLSurfacePointer,DX,DY,0);
- if ( ( DX > 0 ) and ( DX < MAXX ) ) and ( ( DY > 0 ) and ( DY < MAXY ) ) then
- begin
- if ( NX >= srcRect.x ) and ( NX <= srcRect.x + srcRect.w ) then
- begin
- if ( NY >= srcRect.y ) and ( NY <= srcRect.y + srcRect.h ) then
- begin
- Colour := SDL_GetPixel( SrcSurface, NX, NY );
- if Colour <> TempTransparentColour then
- begin
- SDL_PutPixel( DstSurface, DX, DY, Colour );
- end;
- end;
- end;
- end;
- inc( SY );
- end;
- end;
-end;
-
-procedure SDL_RotateDeg( DstSurface, SrcSurface : PSDL_Surface; SrcRect :
- PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Integer );
-begin
- SDL_RotateRad( DstSurface, SrcSurface, SrcRect, DestX, DestY, OffsetX, OffsetY, DegToRad( Angle ) );
-end;
-
-function ValidateSurfaceRect( DstSurface : PSDL_Surface; dstrect : PSDL_Rect ) : TSDL_Rect;
-var
- RealRect : TSDL_Rect;
- OutOfRange : Boolean;
-begin
- OutOfRange := false;
- if dstrect = nil then
- begin
- RealRect.x := 0;
- RealRect.y := 0;
- RealRect.w := DstSurface.w;
- RealRect.h := DstSurface.h;
- end
- else
- begin
- if dstrect.x < DstSurface.w then
- begin
- RealRect.x := dstrect.x;
- end
- else if dstrect.x < 0 then
- begin
- realrect.x := 0;
- end
- else
- begin
- OutOfRange := True;
- end;
- if dstrect.y < DstSurface.h then
- begin
- RealRect.y := dstrect.y;
- end
- else if dstrect.y < 0 then
- begin
- realrect.y := 0;
- end
- else
- begin
- OutOfRange := True;
- end;
- if OutOfRange = False then
- begin
- if realrect.x + dstrect.w <= DstSurface.w then
- begin
- RealRect.w := dstrect.w;
- end
- else
- begin
- RealRect.w := dstrect.w - realrect.x;
- end;
- if realrect.y + dstrect.h <= DstSurface.h then
- begin
- RealRect.h := dstrect.h;
- end
- else
- begin
- RealRect.h := dstrect.h - realrect.y;
- end;
- end;
- end;
- if OutOfRange = False then
- begin
- result := realrect;
- end
- else
- begin
- realrect.w := 0;
- realrect.h := 0;
- realrect.x := 0;
- realrect.y := 0;
- result := realrect;
- end;
-end;
-
-procedure SDL_FillRectAdd( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 );
-var
- RealRect : TSDL_Rect;
- Addr : pointer;
- ModX, BPP : cardinal;
- x, y, R, G, B, SrcColor : cardinal;
-begin
- RealRect := ValidateSurfaceRect( DstSurface, DstRect );
- if ( RealRect.w > 0 ) and ( RealRect.h > 0 ) then
- begin
- SDL_LockSurface( DstSurface );
- BPP := DstSurface.format.BytesPerPixel;
- with DstSurface^ do
- begin
- Addr := pointer( UInt32( pixels ) + UInt32( RealRect.y ) * pitch + UInt32( RealRect.x ) * BPP );
- ModX := Pitch - UInt32( RealRect.w ) * BPP;
- end;
- case DstSurface.format.BitsPerPixel of
- 8 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $E0 + Color and $E0;
- G := SrcColor and $1C + Color and $1C;
- B := SrcColor and $03 + Color and $03;
- if R > $E0 then
- R := $E0;
- if G > $1C then
- G := $1C;
- if B > $03 then
- B := $03;
- PUInt8( Addr )^ := R or G or B;
- inc( UInt32( Addr ), BPP );
- end;
- inc( UInt32( Addr ), ModX );
- end;
- end;
- 15 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $7C00 + Color and $7C00;
- G := SrcColor and $03E0 + Color and $03E0;
- B := SrcColor and $001F + Color and $001F;
- if R > $7C00 then
- R := $7C00;
- if G > $03E0 then
- G := $03E0;
- if B > $001F then
- B := $001F;
- PUInt16( Addr )^ := R or G or B;
- inc( UInt32( Addr ), BPP );
- end;
- inc( UInt32( Addr ), ModX );
- end;
- end;
- 16 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $F800 + Color and $F800;
- G := SrcColor and $07C0 + Color and $07C0;
- B := SrcColor and $001F + Color and $001F;
- if R > $F800 then
- R := $F800;
- if G > $07C0 then
- G := $07C0;
- if B > $001F then
- B := $001F;
- PUInt16( Addr )^ := R or G or B;
- inc( UInt32( Addr ), BPP );
- end;
- inc( UInt32( Addr ), ModX );
- end;
- end;
- 24 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $00FF0000 + Color and $00FF0000;
- G := SrcColor and $0000FF00 + Color and $0000FF00;
- B := SrcColor and $000000FF + Color and $000000FF;
- if R > $FF0000 then
- R := $FF0000;
- if G > $00FF00 then
- G := $00FF00;
- if B > $0000FF then
- B := $0000FF;
- PUInt32( Addr )^ := SrcColor and $FF000000 or R or G or B;
- inc( UInt32( Addr ), BPP );
- end;
- inc( UInt32( Addr ), ModX );
- end;
- end;
- 32 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $00FF0000 + Color and $00FF0000;
- G := SrcColor and $0000FF00 + Color and $0000FF00;
- B := SrcColor and $000000FF + Color and $000000FF;
- if R > $FF0000 then
- R := $FF0000;
- if G > $00FF00 then
- G := $00FF00;
- if B > $0000FF then
- B := $0000FF;
- PUInt32( Addr )^ := R or G or B;
- inc( UInt32( Addr ), BPP );
- end;
- inc( UInt32( Addr ), ModX );
- end;
- end;
- end;
- SDL_UnlockSurface( DstSurface );
- end;
-end;
-
-procedure SDL_FillRectSub( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 );
-var
- RealRect : TSDL_Rect;
- Addr : pointer;
- ModX, BPP : cardinal;
- x, y, R, G, B, SrcColor : cardinal;
-begin
- RealRect := ValidateSurfaceRect( DstSurface, DstRect );
- if ( RealRect.w > 0 ) and ( RealRect.h > 0 ) then
- begin
- SDL_LockSurface( DstSurface );
- BPP := DstSurface.format.BytesPerPixel;
- with DstSurface^ do
- begin
- Addr := pointer( UInt32( pixels ) + UInt32( RealRect.y ) * pitch + UInt32( RealRect.x ) * BPP );
- ModX := Pitch - UInt32( RealRect.w ) * BPP;
- end;
- case DstSurface.format.BitsPerPixel of
- 8 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $E0 - Color and $E0;
- G := SrcColor and $1C - Color and $1C;
- B := SrcColor and $03 - Color and $03;
- if R > $E0 then
- R := 0;
- if G > $1C then
- G := 0;
- if B > $03 then
- B := 0;
- PUInt8( Addr )^ := R or G or B;
- inc( UInt32( Addr ), BPP );
- end;
- inc( UInt32( Addr ), ModX );
- end;
- end;
- 15 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $7C00 - Color and $7C00;
- G := SrcColor and $03E0 - Color and $03E0;
- B := SrcColor and $001F - Color and $001F;
- if R > $7C00 then
- R := 0;
- if G > $03E0 then
- G := 0;
- if B > $001F then
- B := 0;
- PUInt16( Addr )^ := R or G or B;
- inc( UInt32( Addr ), BPP );
- end;
- inc( UInt32( Addr ), ModX );
- end;
- end;
- 16 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $F800 - Color and $F800;
- G := SrcColor and $07C0 - Color and $07C0;
- B := SrcColor and $001F - Color and $001F;
- if R > $F800 then
- R := 0;
- if G > $07C0 then
- G := 0;
- if B > $001F then
- B := 0;
- PUInt16( Addr )^ := R or G or B;
- inc( UInt32( Addr ), BPP );
- end;
- inc( UInt32( Addr ), ModX );
- end;
- end;
- 24 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $00FF0000 - Color and $00FF0000;
- G := SrcColor and $0000FF00 - Color and $0000FF00;
- B := SrcColor and $000000FF - Color and $000000FF;
- if R > $FF0000 then
- R := 0;
- if G > $00FF00 then
- G := 0;
- if B > $0000FF then
- B := 0;
- PUInt32( Addr )^ := SrcColor and $FF000000 or R or G or B;
- inc( UInt32( Addr ), BPP );
- end;
- inc( UInt32( Addr ), ModX );
- end;
- end;
- 32 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $00FF0000 - Color and $00FF0000;
- G := SrcColor and $0000FF00 - Color and $0000FF00;
- B := SrcColor and $000000FF - Color and $000000FF;
- if R > $FF0000 then
- R := 0;
- if G > $00FF00 then
- G := 0;
- if B > $0000FF then
- B := 0;
- PUInt32( Addr )^ := R or G or B;
- inc( UInt32( Addr ), BPP );
- end;
- inc( UInt32( Addr ), ModX );
- end;
- end;
- end;
- SDL_UnlockSurface( DstSurface );
- end;
-end;
-
-procedure SDL_GradientFillRect( DstSurface : PSDL_Surface; const Rect : PSDL_Rect; const StartColor, EndColor : TSDL_Color; const Style : TGradientStyle );
-var
- FBC : array[ 0..255 ] of Cardinal;
- // temp vars
- i, YR, YG, YB, SR, SG, SB, DR, DG, DB : Integer;
-
- TempStepV, TempStepH : Single;
- TempLeft, TempTop, TempHeight, TempWidth : integer;
- TempRect : TSDL_Rect;
-
-begin
- // calc FBC
- YR := StartColor.r;
- YG := StartColor.g;
- YB := StartColor.b;
- SR := YR;
- SG := YG;
- SB := YB;
- DR := EndColor.r - SR;
- DG := EndColor.g - SG;
- DB := EndColor.b - SB;
-
- for i := 0 to 255 do
- begin
- FBC[ i ] := SDL_MapRGB( DstSurface.format, YR, YG, YB );
- YR := SR + round( DR / 255 * i );
- YG := SG + round( DG / 255 * i );
- YB := SB + round( DB / 255 * i );
- end;
-
- // if aStyle = 1 then begin
- TempStepH := Rect.w / 255;
- TempStepV := Rect.h / 255;
- TempHeight := Trunc( TempStepV + 1 );
- TempWidth := Trunc( TempStepH + 1 );
- TempTop := 0;
- TempLeft := 0;
- TempRect.x := Rect.x;
- TempRect.y := Rect.y;
- TempRect.h := Rect.h;
- TempRect.w := Rect.w;
-
- case Style of
- gsHorizontal :
- begin
- TempRect.h := TempHeight;
- for i := 0 to 255 do
- begin
- TempRect.y := Rect.y + TempTop;
- SDL_FillRect( DstSurface, @TempRect, FBC[ i ] );
- TempTop := Trunc( TempStepV * i );
- end;
- end;
- gsVertical :
- begin
- TempRect.w := TempWidth;
- for i := 0 to 255 do
- begin
- TempRect.x := Rect.x + TempLeft;
- SDL_FillRect( DstSurface, @TempRect, FBC[ i ] );
- TempLeft := Trunc( TempStepH * i );
- end;
- end;
- end;
-end;
-
-procedure SDL_2xBlit( Src, Dest : PSDL_Surface );
-var
- ReadAddr, WriteAddr, ReadRow, WriteRow : UInt32;
- SrcPitch, DestPitch, x, y, w, h : UInt32;
-begin
- if ( Src = nil ) or ( Dest = nil ) then
- exit;
- if ( Src.w shl 1 ) < Dest.w then
- exit;
- if ( Src.h shl 1 ) < Dest.h then
- exit;
-
- if SDL_MustLock( Src ) then
- SDL_LockSurface( Src );
- if SDL_MustLock( Dest ) then
- SDL_LockSurface( Dest );
-
- ReadRow := UInt32( Src.Pixels );
- WriteRow := UInt32( Dest.Pixels );
-
- SrcPitch := Src.pitch;
- DestPitch := Dest.pitch;
-
- w := Src.w;
- h := Src.h;
-
- case Src.format.BytesPerPixel of
- 1 :
- asm
- push ebx
- mov eax, h // for y := 1 to Src.h do
- mov y, eax
- @LoopY:
- mov eax, ReadRow // ReadAddr := ReadRow;
- mov ReadAddr, eax
-
- mov eax, WriteRow // WriteAddr := WriteRow;
- mov WriteAddr, eax
-
- mov eax, w // for x := 1 to Src.w do
- mov x, eax
-
- mov ecx, ReadAddr
- mov edx, WriteAddr
- mov ebx, DestPitch
-
- @LoopX:
- mov al, [ecx] // PUInt8(WriteAddr)^ := PUInt8(ReadAddr)^;
- mov [edx], al
- mov [edx + 1], al // PUInt8(WriteAddr + 1)^ := PUInt8(ReadAddr)^;
- mov [edx + ebx], al // PUInt8(WriteAddr + DestPitch)^ := PUInt8(ReadAddr)^;
- mov [edx + ebx + 1], al // PUInt8(WriteAddr + DestPitch + 1)^ := PUInt8(ReadAddr)^;
-
- inc ecx // inc(ReadAddr);
- add edx, 2 // inc(WriteAddr, 2);
-
- dec x
- jnz @LoopX
-
- mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch);
- add ReadRow, eax
-
- mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2);
- add WriteRow, eax
- add WriteRow, eax
-
- dec y
- jnz @LoopY
- pop ebx
- end;
- 2 :
- asm
- push ebx
- mov eax, h // for y := 1 to Src.h do
- mov y, eax
- @LoopY:
- mov eax, ReadRow // ReadAddr := ReadRow;
- mov ReadAddr, eax
-
- mov eax, WriteRow // WriteAddr := WriteRow;
- mov WriteAddr, eax
-
- mov eax, w // for x := 1 to Src.w do
- mov x, eax
-
- mov ecx, ReadAddr
- mov edx, WriteAddr
- mov ebx, DestPitch
-
- @LoopX:
- mov ax, [ecx] // PUInt16(WriteAddr)^ := PUInt16(ReadAddr)^;
- mov [edx], ax
- mov [edx + 2], ax // PUInt16(WriteAddr + 2)^ := PUInt16(ReadAddr)^;
- mov [edx + ebx], ax // PUInt16(WriteAddr + DestPitch)^ := PUInt16(ReadAddr)^;
- mov [edx + ebx + 2], ax // PUInt16(WriteAddr + DestPitch + 2)^ := PUInt16(ReadAddr)^;
-
- add ecx, 2 // inc(ReadAddr, 2);
- add edx, 4 // inc(WriteAddr, 4);
-
- dec x
- jnz @LoopX
-
- mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch);
- add ReadRow, eax
-
- mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2);
- add WriteRow, eax
- add WriteRow, eax
-
- dec y
- jnz @LoopY
- pop ebx
- end;
- 3 :
- asm
- push ebx
- mov eax, h // for y := 1 to Src.h do
- mov y, eax
- @LoopY:
- mov eax, ReadRow // ReadAddr := ReadRow;
- mov ReadAddr, eax
-
- mov eax, WriteRow // WriteAddr := WriteRow;
- mov WriteAddr, eax
-
- mov eax, w // for x := 1 to Src.w do
- mov x, eax
-
- mov ecx, ReadAddr
- mov edx, WriteAddr
- mov ebx, DestPitch
-
- @LoopX:
- mov eax, [ecx] // (PUInt32(WriteAddr)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff);
- and eax, $00ffffff
- and dword ptr [edx], $ff000000
- or [edx], eax
- and dword ptr [edx + 3], $00ffffff // (PUInt32(WriteAddr + 3)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff);
- or [edx + 3], eax
- and dword ptr [edx + ebx], $00ffffff // (PUInt32(WriteAddr + DestPitch)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff);
- or [edx + ebx], eax
- and dword ptr [edx + ebx + 3], $00ffffff // (PUInt32(WriteAddr + DestPitch + 3)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff);
- or [edx + ebx + 3], eax
-
- add ecx, 3 // inc(ReadAddr, 3);
- add edx, 6 // inc(WriteAddr, 6);
-
- dec x
- jnz @LoopX
-
- mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch);
- add ReadRow, eax
-
- mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2);
- add WriteRow, eax
- add WriteRow, eax
-
- dec y
- jnz @LoopY
- pop ebx
- end;
- 4 :
- asm
- push ebx
- mov eax, h // for y := 1 to Src.h do
- mov y, eax
- @LoopY:
- mov eax, ReadRow // ReadAddr := ReadRow;
- mov ReadAddr, eax
-
- mov eax, WriteRow // WriteAddr := WriteRow;
- mov WriteAddr, eax
-
- mov eax, w // for x := 1 to Src.w do
- mov x, eax
-
- mov ecx, ReadAddr
- mov edx, WriteAddr
- mov ebx, DestPitch
-
- @LoopX:
- mov eax, [ecx] // PUInt32(WriteAddr)^ := PUInt32(ReadAddr)^;
- mov [edx], eax
- mov [edx + 4], eax // PUInt32(WriteAddr + 4)^ := PUInt32(ReadAddr)^;
- mov [edx + ebx], eax // PUInt32(WriteAddr + DestPitch)^ := PUInt32(ReadAddr)^;
- mov [edx + ebx + 4], eax // PUInt32(WriteAddr + DestPitch + 4)^ := PUInt32(ReadAddr)^;
-
- add ecx, 4 // inc(ReadAddr, 4);
- add edx, 8 // inc(WriteAddr, 8);
-
- dec x
- jnz @LoopX
-
- mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch);
- add ReadRow, eax
-
- mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2);
- add WriteRow, eax
- add WriteRow, eax
-
- dec y
- jnz @LoopY
- pop ebx
- end;
- end;
-
- if SDL_MustLock( Src ) then
- SDL_UnlockSurface( Src );
- if SDL_MustLock( Dest ) then
- SDL_UnlockSurface( Dest );
-end;
-
-procedure SDL_Scanline2xBlit( Src, Dest : PSDL_Surface );
-var
- ReadAddr, WriteAddr, ReadRow, WriteRow : UInt32;
- SrcPitch, DestPitch, x, y, w, h : UInt32;
-begin
- if ( Src = nil ) or ( Dest = nil ) then
- exit;
- if ( Src.w shl 1 ) < Dest.w then
- exit;
- if ( Src.h shl 1 ) < Dest.h then
- exit;
-
- if SDL_MustLock( Src ) then
- SDL_LockSurface( Src );
- if SDL_MustLock( Dest ) then
- SDL_LockSurface( Dest );
-
- ReadRow := UInt32( Src.Pixels );
- WriteRow := UInt32( Dest.Pixels );
-
- SrcPitch := Src.pitch;
- DestPitch := Dest.pitch;
-
- w := Src.w;
- h := Src.h;
-
- case Src.format.BytesPerPixel of
- 1 :
- asm
- push ebx
- mov eax, h // for y := 1 to Src.h do
- mov y, eax
- @LoopY:
- mov eax, ReadRow // ReadAddr := ReadRow;
- mov ReadAddr, eax
-
- mov eax, WriteRow // WriteAddr := WriteRow;
- mov WriteAddr, eax
-
- mov eax, w // for x := 1 to Src.w do
- mov x, eax
-
- mov ecx, ReadAddr
- mov edx, WriteAddr
-
- @LoopX:
- mov al, [ecx] // PUInt8(WriteAddr)^ := PUInt8(ReadAddr)^;
- mov [edx], al
- mov [edx + 1], al // PUInt8(WriteAddr + 1)^ := PUInt8(ReadAddr)^;
-
- inc ecx // inc(ReadAddr);
- add edx, 2 // inc(WriteAddr, 2);
-
- dec x
- jnz @LoopX
-
- mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch);
- add ReadRow, eax
-
- mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2);
- add WriteRow, eax
- add WriteRow, eax
-
- dec y
- jnz @LoopY
- pop ebx
- end;
- 2 :
- asm
- push ebx
- mov eax, h // for y := 1 to Src.h do
- mov y, eax
- @LoopY:
- mov eax, ReadRow // ReadAddr := ReadRow;
- mov ReadAddr, eax
-
- mov eax, WriteRow // WriteAddr := WriteRow;
- mov WriteAddr, eax
-
- mov eax, w // for x := 1 to Src.w do
- mov x, eax
-
- mov ecx, ReadAddr
- mov edx, WriteAddr
-
- @LoopX:
- mov ax, [ecx] // PUInt16(WriteAddr)^ := PUInt16(ReadAddr)^;
- mov [edx], ax
- mov [edx + 2], eax // PUInt16(WriteAddr + 2)^ := PUInt16(ReadAddr)^;
-
- add ecx, 2 // inc(ReadAddr, 2);
- add edx, 4 // inc(WriteAddr, 4);
-
- dec x
- jnz @LoopX
-
- mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch);
- add ReadRow, eax
-
- mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2);
- add WriteRow, eax
- add WriteRow, eax
-
- dec y
- jnz @LoopY
- pop ebx
- end;
- 3 :
- asm
- push ebx
- mov eax, h // for y := 1 to Src.h do
- mov y, eax
- @LoopY:
- mov eax, ReadRow // ReadAddr := ReadRow;
- mov ReadAddr, eax
-
- mov eax, WriteRow // WriteAddr := WriteRow;
- mov WriteAddr, eax
-
- mov eax, w // for x := 1 to Src.w do
- mov x, eax
-
- mov ecx, ReadAddr
- mov edx, WriteAddr
-
- @LoopX:
- mov eax, [ecx] // (PUInt32(WriteAddr)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff);
- and eax, $00ffffff
- and dword ptr [edx], $ff000000
- or [edx], eax
- and dword ptr [edx + 3], $00ffffff // (PUInt32(WriteAddr + 3)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff);
- or [edx + 3], eax
-
- add ecx, 3 // inc(ReadAddr, 3);
- add edx, 6 // inc(WriteAddr, 6);
-
- dec x
- jnz @LoopX
-
- mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch);
- add ReadRow, eax
-
- mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2);
- add WriteRow, eax
- add WriteRow, eax
-
- dec y
- jnz @LoopY
- pop ebx
- end;
- 4 :
- asm
- push ebx
- mov eax, h // for y := 1 to Src.h do
- mov y, eax
- @LoopY:
- mov eax, ReadRow // ReadAddr := ReadRow;
- mov ReadAddr, eax
-
- mov eax, WriteRow // WriteAddr := WriteRow;
- mov WriteAddr, eax
-
- mov eax, w // for x := 1 to Src.w do
- mov x, eax
-
- mov ecx, ReadAddr
- mov edx, WriteAddr
-
- @LoopX:
- mov eax, [ecx] // PUInt32(WriteAddr)^ := PUInt32(ReadAddr)^;
- mov [edx], eax
- mov [edx + 4], eax // PUInt32(WriteAddr + 4)^ := PUInt32(ReadAddr)^;
-
- add ecx, 4 // inc(ReadAddr, 4);
- add edx, 8 // inc(WriteAddr, 8);
-
- dec x
- jnz @LoopX
-
- mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch);
- add ReadRow, eax
-
- mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2);
- add WriteRow, eax
- add WriteRow, eax
-
- dec y
- jnz @LoopY
- pop ebx
- end;
- end;
-
- if SDL_MustLock( Src ) then
- SDL_UnlockSurface( Src );
- if SDL_MustLock( Dest ) then
- SDL_UnlockSurface( Dest );
-end;
-
-procedure SDL_50Scanline2xBlit( Src, Dest : PSDL_Surface );
-var
- ReadAddr, WriteAddr, ReadRow, WriteRow : UInt32;
- SrcPitch, DestPitch, x, y, w, h : UInt32;
-begin
- if ( Src = nil ) or ( Dest = nil ) then
- exit;
- if ( Src.w shl 1 ) < Dest.w then
- exit;
- if ( Src.h shl 1 ) < Dest.h then
- exit;
-
- if SDL_MustLock( Src ) then
- SDL_LockSurface( Src );
- if SDL_MustLock( Dest ) then
- SDL_LockSurface( Dest );
-
- ReadRow := UInt32( Src.Pixels );
- WriteRow := UInt32( Dest.Pixels );
-
- SrcPitch := Src.pitch;
- DestPitch := Dest.pitch;
-
- w := Src.w;
- h := Src.h;
-
- case Src.format.BitsPerPixel of
- 8 :
- asm
- push ebx
- mov eax, h // for y := 1 to Src.h do
- mov y, eax
- @LoopY:
- mov eax, ReadRow // ReadAddr := ReadRow;
- mov ReadAddr, eax
-
- mov eax, WriteRow // WriteAddr := WriteRow;
- mov WriteAddr, eax
-
- mov eax, w // for x := 1 to Src.w do
- mov x, eax
-
- mov ecx, ReadAddr
- mov edx, WriteAddr
- mov ebx, DestPitch
-
- @LoopX:
- mov al, [ecx] // PUInt8(WriteAddr)^ := PUInt8(ReadAddr)^;
- mov [edx], al
- mov [edx + 1], al // PUInt8(WriteAddr + 1)^ := PUInt8(ReadAddr)^;
- shr al, 1
- and al, $6d
- mov [edx + ebx], al // PUInt8(WriteAddr + DestPitch)^ := PUInt8(ReadAddr)^;
- mov [edx + ebx + 1], al // PUInt8(WriteAddr + DestPitch + 1)^ := PUInt8(ReadAddr)^;
-
- inc ecx // inc(ReadAddr);
- add edx, 2 // inc(WriteAddr, 2);
-
- dec x
- jnz @LoopX
-
- mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch);
- add ReadRow, eax
-
- mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2);
- add WriteRow, eax
- add WriteRow, eax
-
- dec y
- jnz @LoopY
- pop ebx
- end;
- 15 :
- asm
- push ebx
- mov eax, h // for y := 1 to Src.h do
- mov y, eax
- @LoopY:
- mov eax, ReadRow // ReadAddr := ReadRow;
- mov ReadAddr, eax
-
- mov eax, WriteRow // WriteAddr := WriteRow;
- mov WriteAddr, eax
-
- mov eax, w // for x := 1 to Src.w do
- mov x, eax
-
- mov ecx, ReadAddr
- mov edx, WriteAddr
- mov ebx, DestPitch
-
- @LoopX:
- mov ax, [ecx] // PUInt16(WriteAddr)^ := PUInt16(ReadAddr)^;
- mov [edx], ax
- mov [edx + 2], ax // PUInt16(WriteAddr + 2)^ := PUInt16(ReadAddr)^;
- shr ax, 1
- and ax, $3def
- mov [edx + ebx], ax // PUInt16(WriteAddr + DestPitch)^ := PUInt16(ReadAddr)^;
- mov [edx + ebx + 2], ax // PUInt16(WriteAddr + DestPitch + 2)^ := PUInt16(ReadAddr)^;
-
- add ecx, 2 // inc(ReadAddr, 2);
- add edx, 4 // inc(WriteAddr, 4);
-
- dec x
- jnz @LoopX
-
- mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch);
- add ReadRow, eax
-
- mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2);
- add WriteRow, eax
- add WriteRow, eax
-
- dec y
- jnz @LoopY
- pop ebx
- end;
- 16 :
- asm
- push ebx
- mov eax, h // for y := 1 to Src.h do
- mov y, eax
- @LoopY:
- mov eax, ReadRow // ReadAddr := ReadRow;
- mov ReadAddr, eax
-
- mov eax, WriteRow // WriteAddr := WriteRow;
- mov WriteAddr, eax
-
- mov eax, w // for x := 1 to Src.w do
- mov x, eax
-
- mov ecx, ReadAddr
- mov edx, WriteAddr
- mov ebx, DestPitch
-
- @LoopX:
- mov ax, [ecx] // PUInt16(WriteAddr)^ := PUInt16(ReadAddr)^;
- mov [edx], ax
- mov [edx + 2], ax // PUInt16(WriteAddr + 2)^ := PUInt16(ReadAddr)^;
- shr ax, 1
- and ax, $7bef
- mov [edx + ebx], ax // PUInt16(WriteAddr + DestPitch)^ := PUInt16(ReadAddr)^;
- mov [edx + ebx + 2], ax // PUInt16(WriteAddr + DestPitch + 2)^ := PUInt16(ReadAddr)^;
-
- add ecx, 2 // inc(ReadAddr, 2);
- add edx, 4 // inc(WriteAddr, 4);
-
- dec x
- jnz @LoopX
-
- mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch);
- add ReadRow, eax
-
- mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2);
- add WriteRow, eax
- add WriteRow, eax
-
- dec y
- jnz @LoopY
- pop ebx
- end;
- 24 :
- asm
- push ebx
- mov eax, h // for y := 1 to Src.h do
- mov y, eax
- @LoopY:
- mov eax, ReadRow // ReadAddr := ReadRow;
- mov ReadAddr, eax
-
- mov eax, WriteRow // WriteAddr := WriteRow;
- mov WriteAddr, eax
-
- mov eax, w // for x := 1 to Src.w do
- mov x, eax
-
- mov ecx, ReadAddr
- mov edx, WriteAddr
- mov ebx, DestPitch
-
- @LoopX:
- mov eax, [ecx] // (PUInt32(WriteAddr)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff);
- and eax, $00ffffff
- and dword ptr [edx], $ff000000
- or [edx], eax
- and dword ptr [edx + 3], $00ffffff // (PUInt32(WriteAddr + 3)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff);
- or [edx + 3], eax
- shr eax, 1
- and eax, $007f7f7f
- and dword ptr [edx + ebx], $00ffffff // (PUInt32(WriteAddr + DestPitch)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff);
- or [edx + ebx], eax
- and dword ptr [edx + ebx + 3], $00ffffff // (PUInt32(WriteAddr + DestPitch + 3)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff);
- or [edx + ebx + 3], eax
-
- add ecx, 3 // inc(ReadAddr, 3);
- add edx, 6 // inc(WriteAddr, 6);
-
- dec x
- jnz @LoopX
-
- mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch);
- add ReadRow, eax
-
- mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2);
- add WriteRow, eax
- add WriteRow, eax
-
- dec y
- jnz @LoopY
- pop ebx
- end;
- 32 :
- asm
- push ebx
- mov eax, h // for y := 1 to Src.h do
- mov y, eax
- @LoopY:
- mov eax, ReadRow // ReadAddr := ReadRow;
- mov ReadAddr, eax
-
- mov eax, WriteRow // WriteAddr := WriteRow;
- mov WriteAddr, eax
-
- mov eax, w // for x := 1 to Src.w do
- mov x, eax
-
- mov ecx, ReadAddr
- mov edx, WriteAddr
- mov ebx, DestPitch
-
- @LoopX:
- mov eax, [ecx] // PUInt32(WriteAddr)^ := PUInt32(ReadAddr)^;
- mov [edx], eax
- mov [edx + 4], eax // PUInt32(WriteAddr + 4)^ := PUInt32(ReadAddr)^;
- shr eax, 1
- and eax, $7f7f7f7f
- mov [edx + ebx], eax // PUInt32(WriteAddr + DestPitch)^ := PUInt32(ReadAddr)^;
- mov [edx + ebx + 4], eax // PUInt32(WriteAddr + DestPitch + 4)^ := PUInt32(ReadAddr)^;
-
- add ecx, 4 // inc(ReadAddr, 4);
- add edx, 8 // inc(WriteAddr, 8);
-
- dec x
- jnz @LoopX
-
- mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch);
- add ReadRow, eax
-
- mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2);
- add WriteRow, eax
- add WriteRow, eax
-
- dec y
- jnz @LoopY
- pop ebx
- end;
- end;
-
- if SDL_MustLock( Src ) then
- SDL_UnlockSurface( Src );
- if SDL_MustLock( Dest ) then
- SDL_UnlockSurface( Dest );
-end;
-
-function SDL_PixelTestSurfaceVsRect( SrcSurface1 : PSDL_Surface; SrcRect1 : PSDL_Rect; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) :
-boolean;
-var
- Src_Rect1, Src_Rect2 : TSDL_Rect;
- right1, bottom1 : integer;
- right2, bottom2 : integer;
- Scan1Start, Scan2Start, ScanWidth, ScanHeight : cardinal;
- Mod1: cardinal;
- Addr1 : cardinal;
- BPP : cardinal;
- Pitch1 : cardinal;
- TransparentColor1 : cardinal;
- tx, ty : cardinal;
- StartTick : cardinal;
- Color1 : cardinal;
-begin
- Result := false;
- if SrcRect1 = nil then
- begin
- with Src_Rect1 do
- begin
- x := 0;
- y := 0;
- w := SrcSurface1.w;
- h := SrcSurface1.h;
- end;
- end
- else
- Src_Rect1 := SrcRect1^;
-
- Src_Rect2 := SrcRect2^;
- with Src_Rect1 do
- begin
- Right1 := Left1 + w;
- Bottom1 := Top1 + h;
- end;
- with Src_Rect2 do
- begin
- Right2 := Left2 + w;
- Bottom2 := Top2 + h;
- end;
- if ( Left1 >= Right2 ) or ( Right1 <= Left2 ) or ( Top1 >= Bottom2 ) or (
-Bottom1 <=
- Top2 ) then
- exit;
- if Left1 <= Left2 then
- begin
- // 1. left, 2. right
- Scan1Start := Src_Rect1.x + Left2 - Left1;
- Scan2Start := Src_Rect2.x;
- ScanWidth := Right1 - Left2;
- with Src_Rect2 do
- if ScanWidth > w then
- ScanWidth := w;
- end
- else
- begin
- // 1. right, 2. left
- Scan1Start := Src_Rect1.x;
- Scan2Start := Src_Rect2.x + Left1 - Left2;
- ScanWidth := Right2 - Left1;
- with Src_Rect1 do
- if ScanWidth > w then
- ScanWidth := w;
- end;
- with SrcSurface1^ do
- begin
- Pitch1 := Pitch;
- Addr1 := cardinal( Pixels );
- inc( Addr1, Pitch1 * UInt32( Src_Rect1.y ) );
- with format^ do
- begin
- BPP := BytesPerPixel;
- TransparentColor1 := colorkey;
- end;
- end;
-
- Mod1 := Pitch1 - ( ScanWidth * BPP );
-
- inc( Addr1, BPP * Scan1Start );
-
- if Top1 <= Top2 then
- begin
- // 1. up, 2. down
- ScanHeight := Bottom1 - Top2;
- if ScanHeight > Src_Rect2.h then
- ScanHeight := Src_Rect2.h;
- inc( Addr1, Pitch1 * UInt32( Top2 - Top1 ) );
- end
- else
- begin
- // 1. down, 2. up
- ScanHeight := Bottom2 - Top1;
- if ScanHeight > Src_Rect1.h then
- ScanHeight := Src_Rect1.h;
-
- end;
- case BPP of
- 1 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- if ( PByte( Addr1 )^ <> TransparentColor1 ) then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1 );
-
- end;
- inc( Addr1, Mod1 );
-
- end;
- 2 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- if ( PWord( Addr1 )^ <> TransparentColor1 ) then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1, 2 );
-
- end;
- inc( Addr1, Mod1 );
-
- end;
- 3 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- Color1 := PLongWord( Addr1 )^ and $00FFFFFF;
-
- if ( Color1 <> TransparentColor1 )
- then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1, 3 );
-
- end;
- inc( Addr1, Mod1 );
-
- end;
- 4 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- if ( PLongWord( Addr1 )^ <> TransparentColor1 ) then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1, 4 );
-
- end;
- inc( Addr1, Mod1 );
-
- end;
- end;
-end;
-
-procedure SDL_ORSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-var
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr, TransparentColor : cardinal;
- // TransparentColor: cardinal;
- _ebx, _esi, _edi, _esp : cardinal;
- WorkX, WorkY : word;
- SrcMod, DestMod : cardinal;
- Bits : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DestSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DestSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- TransparentColor := Format.colorkey;
- end;
- with DestSurface^ do
- begin
- DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- Bits := Format.BitsPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DestSurface );
- WorkY := Src.h;
- case bits of
- 8 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov al, [esi] // AL := source color
- cmp al, 0
- je @SkipColor // if AL=0 or AL=transparent color then skip everything
- cmp al, byte ptr TransparentColor
- je @SkipColor
- or al, [edi]
- mov [edi], al
- @SkipColor:
- inc esi
- inc edi
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 15 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov ax, [esi] // AX := source color
- cmp ax, 0
- je @SkipColor // if AX=0 then skip everything
- cmp ax, word ptr TransparentColor
- je @SkipColor
- or ax, [edi]
- mov [edi], ax
- @SkipColor:
- add esi, 2
- add edi, 2
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 16 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov ax, [esi] // AX := source color
- cmp ax, 0
- je @SkipColor // if AX=0 then skip everything
- cmp ax, word ptr TransparentColor
- je @SkipColor
- or ax, [edi]
- mov [edi], ax
- @SkipColor:
- add esi, 2
- add edi, 2
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 24 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- add WorkX, ax // WorkX := Src.w * 2
- add WorkX, ax // WorkX := Src.w * 3
- @Loopx:
- mov al, [esi] // AL := source color
- or al, [edi]
- mov [edi], al
- inc esi
- inc edi
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 32 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- shl ax, 2
- mov WorkX, ax // WorkX := Src.w * 4
- @Loopx:
- mov al, [esi] // AL := source color
- or al, [edi]
- mov [edi], al
- inc esi
- inc edi
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DestSurface );
-end;
-
-procedure SDL_ANDSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-var
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr, TransparentColor : cardinal;
- // TransparentColor: cardinal;
- _ebx, _esi, _edi, _esp : cardinal;
- WorkX, WorkY : word;
- SrcMod, DestMod : cardinal;
- Bits : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DestSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DestSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- TransparentColor := Format.colorkey;
- end;
- with DestSurface^ do
- begin
- DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- Bits := Format.BitsPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DestSurface );
- WorkY := Src.h;
- case bits of
- 8 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov al, [esi] // AL := source color
- cmp al, 0
- je @SkipColor // if AL=0 or AL=transparent color then skip everything
- cmp al, byte ptr TransparentColor
- je @SkipColor
- and al, [edi]
- mov [edi], al
- @SkipColor:
- inc esi
- inc edi
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 15 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov ax, [esi] // AX := source color
- cmp ax, 0
- je @SkipColor // if AX=0 then skip everything
- cmp ax, word ptr TransparentColor
- je @SkipColor
- and ax, [edi]
- mov [edi], ax
- @SkipColor:
- add esi, 2
- add edi, 2
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 16 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- @Loopx:
- mov ax, [esi] // AX := source color
- cmp ax, 0
- je @SkipColor // if AX=0 then skip everything
- cmp ax, word ptr TransparentColor
- je @SkipColor
- and ax, [edi]
- mov [edi], ax
- @SkipColor:
- add esi, 2
- add edi, 2
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 24 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- mov WorkX, ax // WorkX := Src.w
- add WorkX, ax // WorkX := Src.w * 2
- add WorkX, ax // WorkX := Src.w * 3
- @Loopx:
- mov al, [esi] // AL := source color
- and al, [edi]
- mov [edi], al
- inc esi
- inc edi
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- 32 :
- asm
- mov _ebx, ebx
- mov _esi, esi
- mov _edi, edi
- mov _esp, esp
- mov esi, SrcAddr // ESI - Source Offset
- mov edi, DestAddr // EDI - Destination Offset
- mov ax, Src.h // WorkY := Src.h
- mov WorkY, ax
- @LoopY:
- mov ax, Src.w
- shl ax, 2
- mov WorkX, ax // WorkX := Src.w * 4
- @Loopx:
- mov al, [esi] // AL := source color
- and al, [edi]
- mov [edi], al
- inc esi
- inc edi
- dec WorkX
- jnz @LoopX
- add esi, SrcMod
- add edi, DestMod
- dec WorkY
- jnz @LoopY
- mov esp,_esp
- mov edi,_edi
- mov esi,_esi
- mov ebx,_ebx
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DestSurface );
-end;
-
-
-procedure SDL_GTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-var
- R, G, B, Pixel1, Pixel2, TransparentColor : cardinal;
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr : cardinal;
- WorkX, WorkY : word;
- SrcMod, DestMod : cardinal;
- Bits : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DestSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DestSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- TransparentColor := Format.colorkey;
- end;
- with DestSurface^ do
- begin
- DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- Bits := Format.BitsPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DestSurface );
- WorkY := Src.h;
- case bits of
- 8 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt8( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt8( DestAddr )^;
- if Pixel2 > 0 then
- begin
- if Pixel2 and $E0 > Pixel1 and $E0 then R := Pixel2 and $E0 else R := Pixel1 and $E0;
- if Pixel2 and $1C > Pixel1 and $1C then G := Pixel2 and $1C else G := Pixel1 and $1C;
- if Pixel2 and $03 > Pixel1 and $03 then B := Pixel2 and $03 else B := Pixel1 and $03;
-
- if R > $E0 then
- R := $E0;
- if G > $1C then
- G := $1C;
- if B > $03 then
- B := $03;
- PUInt8( DestAddr )^ := R or G or B;
- end
- else
- PUInt8( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr );
- inc( DestAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 15 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $7C00 > Pixel1 and $7C00 then R := Pixel2 and $7C00 else R := Pixel1 and $7C00;
- if Pixel2 and $03E0 > Pixel1 and $03E0 then G := Pixel2 and $03E0 else G := Pixel1 and $03E0;
- if Pixel2 and $001F > Pixel1 and $001F then B := Pixel2 and $001F else B := Pixel1 and $001F;
-
- PUInt16( DestAddr )^ := R or G or B;
- end
- else
- PUInt16( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 16 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $F800 > Pixel1 and $F800 then R := Pixel2 and $F800 else R := Pixel1 and $F800;
- if Pixel2 and $07E0 > Pixel1 and $07E0 then G := Pixel2 and $07E0 else G := Pixel1 and $07E0;
- if Pixel2 and $001F > Pixel1 and $001F then B := Pixel2 and $001F else B := Pixel1 and $001F;
-
- PUInt16( DestAddr )^ := R or G or B;
- end
- else
- PUInt16( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 24 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $FF0000 > Pixel1 and $FF0000 then R := Pixel2 and $FF0000 else R := Pixel1 and $FF0000;
- if Pixel2 and $00FF00 > Pixel1 and $00FF00 then G := Pixel2 and $00FF00 else G := Pixel1 and $00FF00;
- if Pixel2 and $0000FF > Pixel1 and $0000FF then B := Pixel2 and $0000FF else B := Pixel1 and $0000FF;
-
- PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or ( R or G or B );
- end
- else
- PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or Pixel1;
- end;
- inc( SrcAddr, 3 );
- inc( DestAddr, 3 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 32 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $FF0000 > Pixel1 and $FF0000 then R := Pixel2 and $FF0000 else R := Pixel1 and $FF0000;
- if Pixel2 and $00FF00 > Pixel1 and $00FF00 then G := Pixel2 and $00FF00 else G := Pixel1 and $00FF00;
- if Pixel2 and $0000FF > Pixel1 and $0000FF then B := Pixel2 and $0000FF else B := Pixel1 and $0000FF;
-
- PUInt32( DestAddr )^ := R or G or B;
- end
- else
- PUInt32( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr, 4 );
- inc( DestAddr, 4 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DestSurface );
-end;
-
-
-procedure SDL_LTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-var
- R, G, B, Pixel1, Pixel2, TransparentColor : cardinal;
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr : cardinal;
- WorkX, WorkY : word;
- SrcMod, DestMod : cardinal;
- Bits : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DestSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DestSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- TransparentColor := Format.colorkey;
- end;
- with DestSurface^ do
- begin
- DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- Bits := Format.BitsPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DestSurface );
- WorkY := Src.h;
- case bits of
- 8 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt8( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt8( DestAddr )^;
- if Pixel2 > 0 then
- begin
- if Pixel2 and $E0 < Pixel1 and $E0 then R := Pixel2 and $E0 else R := Pixel1 and $E0;
- if Pixel2 and $1C < Pixel1 and $1C then G := Pixel2 and $1C else G := Pixel1 and $1C;
- if Pixel2 and $03 < Pixel1 and $03 then B := Pixel2 and $03 else B := Pixel1 and $03;
-
- if R > $E0 then
- R := $E0;
- if G > $1C then
- G := $1C;
- if B > $03 then
- B := $03;
- PUInt8( DestAddr )^ := R or G or B;
- end
- else
- PUInt8( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr );
- inc( DestAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 15 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $7C00 < Pixel1 and $7C00 then R := Pixel2 and $7C00 else R := Pixel1 and $7C00;
- if Pixel2 and $03E0 < Pixel1 and $03E0 then G := Pixel2 and $03E0 else G := Pixel1 and $03E0;
- if Pixel2 and $001F < Pixel1 and $001F then B := Pixel2 and $001F else B := Pixel1 and $001F;
-
- PUInt16( DestAddr )^ := R or G or B;
- end
- else
- PUInt16( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 16 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $F800 < Pixel1 and $F800 then R := Pixel2 and $F800 else R := Pixel1 and $F800;
- if Pixel2 and $07E0 < Pixel1 and $07E0 then G := Pixel2 and $07E0 else G := Pixel1 and $07E0;
- if Pixel2 and $001F < Pixel1 and $001F then B := Pixel2 and $001F else B := Pixel1 and $001F;
-
- PUInt16( DestAddr )^ := R or G or B;
- end
- else
- PUInt16( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 24 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $FF0000 < Pixel1 and $FF0000 then R := Pixel2 and $FF0000 else R := Pixel1 and $FF0000;
- if Pixel2 and $00FF00 < Pixel1 and $00FF00 then G := Pixel2 and $00FF00 else G := Pixel1 and $00FF00;
- if Pixel2 and $0000FF < Pixel1 and $0000FF then B := Pixel2 and $0000FF else B := Pixel1 and $0000FF;
-
- PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or ( R or G or B );
- end
- else
- PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or Pixel1;
- end;
- inc( SrcAddr, 3 );
- inc( DestAddr, 3 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 32 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $FF0000 < Pixel1 and $FF0000 then R := Pixel2 and $FF0000 else R := Pixel1 and $FF0000;
- if Pixel2 and $00FF00 < Pixel1 and $00FF00 then G := Pixel2 and $00FF00 else G := Pixel1 and $00FF00;
- if Pixel2 and $0000FF < Pixel1 and $0000FF then B := Pixel2 and $0000FF else B := Pixel1 and $0000FF;
-
- PUInt32( DestAddr )^ := R or G or B;
- end
- else
- PUInt32( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr, 4 );
- inc( DestAddr, 4 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DestSurface );
-end;
-
-function SDL_ClipLine(var x1,y1,x2,y2: Integer; ClipRect: PSDL_Rect) : boolean;
-var tflag, flag1, flag2: word;
- txy, xedge, yedge: Integer;
- slope: single;
-
- function ClipCode(x,y: Integer): word;
- begin
- Result := 0;
- if x < ClipRect.x then Result := 1;
- if x >= ClipRect.w + ClipRect.x then Result := Result or 2;
- if y < ClipRect.y then Result := Result or 4;
- if y >= ClipRect.h + ClipRect.y then Result := Result or 8;
- end;
-
-begin
- flag1 := ClipCode(x1,y1);
- flag2 := ClipCode(x2,y2);
- result := true;
-
- while true do
- begin
- if (flag1 or flag2) = 0 then Exit; // all in
-
- if (flag1 and flag2) <> 0 then
- begin
- result := false;
- Exit; // all out
- end;
-
- if flag2 = 0 then
- begin
- txy := x1; x1 := x2; x2 := txy;
- txy := y1; y1 := y2; y2 := txy;
- tflag := flag1; flag1 := flag2; flag2 := tflag;
- end;
-
- if (flag2 and 3) <> 0 then
- begin
- if (flag2 and 1) <> 0 then
- xedge := ClipRect.x
- else
- xedge := ClipRect.w + ClipRect.x -1; // back 1 pixel otherwise we end up in a loop
-
- slope := (y2 - y1) / (x2 - x1);
- y2 := y1 + Round(slope * (xedge - x1));
- x2 := xedge;
- end
- else
- begin
- if (flag2 and 4) <> 0 then
- yedge := ClipRect.y
- else
- yedge := ClipRect.h + ClipRect.y -1; // up 1 pixel otherwise we end up in a loop
-
- slope := (x2 - x1) / (y2 - y1);
- x2 := x1 + Round(slope * (yedge - y1));
- y2 := yedge;
- end;
-
- flag2 := ClipCode(x2, y2);
- end;
-end;
-
-end.
-
-
+unit sdli386utils; +{ + $Id: sdli386utils.pas,v 1.5 2004/06/02 19:38:53 savage Exp $ + +} +{******************************************************************************} +{ } +{ Borland Delphi SDL - Simple DirectMedia Layer } +{ SDL Utility functions } +{ } +{ } +{ The initial developer of this Pascal code was : } +{ Tom Jones <tigertomjones@gmx.de> } +{ } +{ Portions created by Tom Jones are } +{ Copyright (C) 2000 - 2001 Tom Jones. } +{ } +{ } +{ Contributor(s) } +{ -------------- } +{ Dominique Louis <Dominique@SavageSoftware.com.au> } +{ Róbert Kisnémeth <mikrobi@freemail.hu> } +{ } +{ Obtained through: } +{ Joint Endeavour of Delphi Innovators ( Project JEDI ) } +{ } +{ You may retrieve the latest version of this file at the Project } +{ JEDI home page, located at http://delphi-jedi.org } +{ } +{ The contents of this file are used with permission, subject to } +{ the Mozilla Public License Version 1.1 (the "License"); you may } +{ not use this file except in compliance with the License. You may } +{ obtain a copy of the License at } +{ http://www.mozilla.org/MPL/MPL-1.1.html } +{ } +{ Software distributed under the License is distributed on an } +{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } +{ implied. See the License for the specific language governing } +{ rights and limitations under the License. } +{ } +{ Description } +{ ----------- } +{ Helper functions... } +{ } +{ } +{ Requires } +{ -------- } +{ SDL.dll on Windows platforms } +{ libSDL-1.1.so.0 on Linux platform } +{ } +{ Programming Notes } +{ ----------------- } +{ } +{ } +{ } +{ } +{ Revision History } +{ ---------------- } +{ 2000 - TJ : Initial creation } +{ } +{ July 13 2001 - DL : Added PutPixel and GetPixel routines. } +{ } +{ Sept 14 2001 - RK : Added flipping routines. } +{ } +{ Sept 19 2001 - RK : Added PutPixel & line drawing & blitting with ADD } +{ effect. Fixed a bug in SDL_PutPixel & SDL_GetPixel } +{ Added PSDLRect() } +{ Sept 22 2001 - DL : Removed need for Windows.pas by defining types here} +{ Also removed by poor attempt or a dialog box } +{ } +{ Sept 25 2001 - RK : Added PixelTest, NewPutPixel, SubPixel, SubLine, } +{ SubSurface, MonoSurface & TexturedSurface } +{ } +{ Sept 26 2001 - DL : Made change so that it refers to native Pascal } +{ types rather that Windows types. This makes it more} +{ portable to Linix. } +{ } +{ Sept 27 2001 - RK : SDLUtils now can be compiled with FreePascal } +{ } +{ Oct 27 2001 - JF : Added ScrollY function } +{ } +{ Jan 21 2002 - RK : Added SDL_ZoomSurface and SDL_WarpSurface } +{ } +{ Mar 28 2002 - JF : Added SDL_RotateSurface } +{ } +{ May 13 2002 - RK : Improved SDL_FillRectAdd & SDL_FillRectSub } +{ } +{ May 27 2002 - YS : GradientFillRect function } +{ } +{ May 30 2002 - RK : Added SDL_2xBlit, SDL_Scanline2xBlit } +{ & SDL_50Scanline2xBlit } +{ } +{ June 12 2002 - RK : Added SDL_PixelTestSurfaceVsRect } +{ } +{ June 12 2002 - JF : Updated SDL_PixelTestSurfaceVsRect } +{ } +{ November 9 2002 - JF : Added Jason's boolean Surface functions } +{ } +{ December 10 2002 - DE : Added Dean's SDL_ClipLine function } +{ } +{******************************************************************************} +{ + $Log: sdli386utils.pas,v $ + Revision 1.5 2004/06/02 19:38:53 savage + Changes to SDL_GradientFillRect as suggested by + Ángel Eduardo García Hernández. Many thanks. + + Revision 1.4 2004/05/29 23:11:53 savage + Changes to SDL_ScaleSurfaceRect as suggested by + Ángel Eduardo García Hernández to fix a colour issue with the function. Many thanks. + + Revision 1.3 2004/02/20 22:04:11 savage + Added Changes as mentioned by Rodrigo "Rui" R. (1/2 RRC2Soft) to facilitate FPC compilation and it also works in Delphi. Also syncronized the funcitons so that they are identical to sdlutils.pas, when no assembly version is available. + + Revision 1.2 2004/02/14 00:23:39 savage + As UNIX is defined in jedi-sdl.inc this will be used to check linux compatability as well. Units have been changed to reflect this change. + + Revision 1.1 2004/02/05 00:08:20 savage + Module 1.0 release + + +} + +interface + +{$i jedi-sdl.inc} + +uses +{$IFDEF UNIX} + Types, + Xlib, +{$ENDIF} + SysUtils, + sdl; + +type + TGradientStyle = ( gsHorizontal, gsVertical ); + + // Pixel procedures +function SDL_PixelTest( SrcSurface1 : PSDL_Surface; SrcRect1 : PSDL_Rect; SrcSurface2 : + PSDL_Surface; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) : Boolean; + +function SDL_GetPixel( SrcSurface : PSDL_Surface; x : cardinal; y : cardinal ) : Uint32; + +procedure SDL_PutPixel( SrcSurface : PSDL_Surface; x : integer; y : integer; Color : + cardinal ); + +procedure SDL_AddPixel( SrcSurface : PSDL_Surface; x : integer; y : integer; Color : + cardinal ); + +procedure SDL_SubPixel( SrcSurface : PSDL_Surface; x : integer; y : integer; Color : + cardinal ); + +// Line procedures +procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal );overload; + +procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal ; DashLength, DashSpace : byte ); overload; + +procedure SDL_AddLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal ); + +procedure SDL_SubLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal ); + +// Surface procedures +procedure SDL_AddSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DstSurface : PSDL_Surface; DestRect : PSDL_Rect ); + +procedure SDL_SubSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DstSurface : PSDL_Surface; DestRect : PSDL_Rect ); + +procedure SDL_MonoSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DstSurface : PSDL_Surface; DestRect : PSDL_Rect; Color : cardinal ); + +procedure SDL_TexturedSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DstSurface : PSDL_Surface; DestRect : PSDL_Rect; Texture : PSDL_Surface; + TextureRect : PSDL_Rect ); + +procedure SDL_ZoomSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; DstRect : PSDL_Rect ); + +procedure SDL_WarpSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; UL, UR, LR, LL : PPoint ); + +// Flip procedures +procedure SDL_FlipRectH( DstSurface : PSDL_Surface; Rect : PSDL_Rect ); + +procedure SDL_FlipRectV( DstSurface : PSDL_Surface; Rect : PSDL_Rect ); + +function PSDLRect( aLeft, aTop, aWidth, aHeight : integer ) : PSDL_Rect; + +function SDLRect( aLeft, aTop, aWidth, aHeight : integer ) : TSDL_Rect; overload; + +function SDLRect( aRect : TRect ) : TSDL_Rect; overload; + +function SDL_ScaleSurfaceRect( SrcSurface : PSDL_Surface; SrcX1, SrcY1, SrcW, SrcH, + Width, Height : integer ) : PSDL_Surface; + +procedure SDL_ScrollY( DstSurface : PSDL_Surface; DifY : integer ); + +procedure SDL_ScrollX( DstSurface : PSDL_Surface; DifX : integer ); + +procedure SDL_RotateDeg( DstSurface, SrcSurface : PSDL_Surface; SrcRect : + PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Integer ); + +procedure SDL_RotateRad( DstSurface, SrcSurface : PSDL_Surface; SrcRect : + PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Single ); + +function ValidateSurfaceRect( DstSurface : PSDL_Surface; dstrect : PSDL_Rect ) : TSDL_Rect; + +// Fill Rect routine +procedure SDL_FillRectAdd( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 ); + +procedure SDL_FillRectSub( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 ); + +procedure SDL_GradientFillRect( DstSurface : PSDL_Surface; const Rect : PSDL_Rect; const StartColor, EndColor : TSDL_Color; const Style : TGradientStyle ); + +// NOTE for All SDL_2xblit... function : the dest surface must be 2x of the source surface! +procedure SDL_2xBlit( Src, Dest : PSDL_Surface ); + +procedure SDL_Scanline2xBlit( Src, Dest : PSDL_Surface ); + +procedure SDL_50Scanline2xBlit( Src, Dest : PSDL_Surface ); + +function SDL_PixelTestSurfaceVsRect( SrcSurface1 : PSDL_Surface; SrcRect1 : +PSDL_Rect; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) : +boolean; + +// Jason's boolean Surface functions +procedure SDL_ORSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); + +procedure SDL_ANDSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); + +procedure SDL_GTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); + +procedure SDL_LTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); + +function SDL_ClipLine(var x1,y1,x2,y2: Integer; ClipRect: PSDL_Rect) : boolean; + +implementation + +uses + Math; + +function SDL_PixelTest( SrcSurface1 : PSDL_Surface; SrcRect1 : PSDL_Rect; SrcSurface2 : + PSDL_Surface; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) : boolean; +var + Src_Rect1, Src_Rect2 : TSDL_Rect; + right1, bottom1 : integer; + right2, bottom2 : integer; + Scan1Start, Scan2Start, ScanWidth, ScanHeight : cardinal; + Mod1, Mod2 : cardinal; + Addr1, Addr2 : cardinal; + BPP : cardinal; + Pitch1, Pitch2 : cardinal; + TransparentColor1, TransparentColor2 : cardinal; + tx, ty : cardinal; + StartTick : cardinal; + Color1, Color2 : cardinal; +begin + Result := false; + if SrcRect1 = nil then + begin + with Src_Rect1 do + begin + x := 0; + y := 0; + w := SrcSurface1.w; + h := SrcSurface1.h; + end; + end + else + Src_Rect1 := SrcRect1^; + if SrcRect2 = nil then + begin + with Src_Rect2 do + begin + x := 0; + y := 0; + w := SrcSurface2.w; + h := SrcSurface2.h; + end; + end + else + Src_Rect2 := SrcRect2^; + with Src_Rect1 do + begin + Right1 := Left1 + w; + Bottom1 := Top1 + h; + end; + with Src_Rect2 do + begin + Right2 := Left2 + w; + Bottom2 := Top2 + h; + end; + if ( Left1 >= Right2 ) or ( Right1 <= Left2 ) or ( Top1 >= Bottom2 ) or ( Bottom1 <= + Top2 ) then + exit; + if Left1 <= Left2 then + begin + // 1. left, 2. right + Scan1Start := Src_Rect1.x + Left2 - Left1; + Scan2Start := Src_Rect2.x; + ScanWidth := Right1 - Left2; + with Src_Rect2 do + if ScanWidth > w then + ScanWidth := w; + end + else + begin + // 1. right, 2. left + Scan1Start := Src_Rect1.x; + Scan2Start := Src_Rect2.x + Left1 - Left2; + ScanWidth := Right2 - Left1; + with Src_Rect1 do + if ScanWidth > w then + ScanWidth := w; + end; + with SrcSurface1^ do + begin + Pitch1 := Pitch; + Addr1 := cardinal( Pixels ); + inc( Addr1, Pitch1 * UInt32( Src_Rect1.y ) ); + with format^ do + begin + BPP := BytesPerPixel; + TransparentColor1 := colorkey; + end; + end; + with SrcSurface2^ do + begin + TransparentColor2 := format.colorkey; + Pitch2 := Pitch; + Addr2 := cardinal( Pixels ); + inc( Addr2, Pitch2 * UInt32( Src_Rect2.y ) ); + end; + Mod1 := Pitch1 - ( ScanWidth * BPP ); + Mod2 := Pitch2 - ( ScanWidth * BPP ); + inc( Addr1, BPP * Scan1Start ); + inc( Addr2, BPP * Scan2Start ); + if Top1 <= Top2 then + begin + // 1. up, 2. down + ScanHeight := Bottom1 - Top2; + if ScanHeight > Src_Rect2.h then + ScanHeight := Src_Rect2.h; + inc( Addr1, Pitch1 * UInt32( Top2 - Top1 ) ); + end + else + begin + // 1. down, 2. up + ScanHeight := Bottom2 - Top1; + if ScanHeight > Src_Rect1.h then + ScanHeight := Src_Rect1.h; + inc( Addr2, Pitch2 * UInt32( Top1 - Top2 ) ); + end; + case BPP of + 1 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + if ( PByte( Addr1 )^ <> TransparentColor1 ) and ( PByte( Addr2 )^ <> + TransparentColor2 ) then + begin + Result := true; + exit; + end; + inc( Addr1 ); + inc( Addr2 ); + end; + inc( Addr1, Mod1 ); + inc( Addr2, Mod2 ); + end; + 2 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + if ( PWord( Addr1 )^ <> TransparentColor1 ) and ( PWord( Addr2 )^ <> + TransparentColor2 ) then + begin + Result := true; + exit; + end; + inc( Addr1, 2 ); + inc( Addr2, 2 ); + end; + inc( Addr1, Mod1 ); + inc( Addr2, Mod2 ); + end; + 3 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + Color1 := PLongWord( Addr1 )^ and $00FFFFFF; + Color2 := PLongWord( Addr2 )^ and $00FFFFFF; + if ( Color1 <> TransparentColor1 ) and ( Color2 <> TransparentColor2 ) + then + begin + Result := true; + exit; + end; + inc( Addr1, 3 ); + inc( Addr2, 3 ); + end; + inc( Addr1, Mod1 ); + inc( Addr2, Mod2 ); + end; + 4 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + if ( PLongWord( Addr1 )^ <> TransparentColor1 ) and ( PLongWord( Addr2 )^ <> + TransparentColor2 ) then + begin + Result := true; + exit; + end; + inc( Addr1, 4 ); + inc( Addr2, 4 ); + end; + inc( Addr1, Mod1 ); + inc( Addr2, Mod2 ); + end; + end; +end; + +function SDL_GetPixel( SrcSurface : PSDL_Surface; x : cardinal; y : cardinal ) : Uint32; +var + bpp : UInt32; + p : PInteger; +begin + bpp := SrcSurface.format.BytesPerPixel; + // Here p is the address to the pixel we want to retrieve + p := Pointer( Uint32( SrcSurface.pixels ) + UInt32( y ) * SrcSurface.pitch + UInt32( x ) * + bpp ); + case bpp of + 1 : result := PUint8( p )^; + 2 : result := PUint16( p )^; + 3 : + if ( SDL_BYTEORDER = SDL_BIG_ENDIAN ) then + result := PUInt8Array( p )[ 0 ] shl 16 or PUInt8Array( p )[ 1 ] shl 8 or + PUInt8Array( p )[ 2 ] + else + result := PUInt8Array( p )[ 0 ] or PUInt8Array( p )[ 1 ] shl 8 or + PUInt8Array( p )[ 2 ] shl 16; + 4 : result := PUint32( p )^; + else + result := 0; // shouldn't happen, but avoids warnings + end; +end; + +procedure SDL_PutPixel( SrcSurface : PSDL_Surface; x : integer; y : integer; Color : + cardinal ); +var + Addr, Pitch, BPP : cardinal; +begin + Addr := cardinal( SrcSurface.Pixels ); + Pitch := SrcSurface.Pitch; + BPP := SrcSurface.format.BytesPerPixel; + asm + mov eax, y + mul Pitch // EAX := y * Pitch + add Addr, eax // Addr:= Addr + (y * Pitch) + mov eax, x + mov ecx, Color + cmp BPP, 1 + jne @Not1BPP + add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x + mov [eax], cl + jmp @Quit + @Not1BPP: + cmp BPP, 2 + jne @Not2BPP + mul BPP // EAX := x * BPP + add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x * BPP + mov [eax], cx + jmp @Quit + @Not2BPP: + cmp BPP, 3 + jne @Not3BPP + mul BPP // EAX := x * BPP + add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x * BPP + mov edx, [eax] + and edx, $ff000000 + or edx, ecx + mov [eax], edx + jmp @Quit + @Not3BPP: + mul BPP // EAX := x * BPP + add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x * BPP + mov [eax], ecx + @Quit: + end; +end; + +procedure SDL_AddPixel( SrcSurface : PSDL_Surface; x : integer; y : integer; Color : + cardinal ); +var + SrcColor, FinalColor : cardinal; + Addr, Pitch, Bits : cardinal; +begin + if Color = 0 then + exit; + Addr := cardinal( SrcSurface.Pixels ); + Pitch := SrcSurface.Pitch; + Bits := SrcSurface.format.BitsPerPixel; + asm + mov eax, y + mul Pitch // EAX := y * Pitch + add Addr, eax // Addr:= Addr + (y * Pitch) + mov eax, x + cmp Bits, 8 + jne @Not8bit + add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x + mov cl, [eax] + movzx ecx, cl + mov SrcColor, ecx + mov edx, Color + and ecx, 3 + and edx, 3 + add ecx, edx + cmp ecx, 3 + jbe @Skip1_8bit + mov ecx, 3 + @Skip1_8bit: + mov FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $1c + and edx, $1c + add ecx, edx + cmp ecx, $1c + jbe @Skip2_8bit + mov ecx, $1c + @Skip2_8bit: + or FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $e0 + and edx, $e0 + add ecx, edx + cmp ecx, $e0 + jbe @Skip3_8bit + mov ecx, $e0 + @Skip3_8bit: + or ecx, FinalColor + mov [eax], cl + jmp @Quit + @Not8bit: + cmp Bits, 15 + jne @Not15bit + shl eax, 1 + add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x * 2 + mov ecx, [eax] + and ecx, $00007fff + mov SrcColor, ecx + mov edx, Color + and ecx, $1f + and edx, $1f + add ecx, edx + cmp ecx, $1f + jbe @Skip1_15bit + mov ecx, $1f + @Skip1_15bit: + mov FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $03e0 + and edx, $03e0 + add ecx, edx + cmp ecx, $03e0 + jbe @Skip2_15bit + mov ecx, $03e0 + @Skip2_15bit: + or FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $7c00 + and edx, $7c00 + add ecx, edx + cmp ecx, $7c00 + jbe @Skip3_15bit + mov ecx, $7c00 + @Skip3_15bit: + or ecx, FinalColor + mov [eax], cx + jmp @Quit + @Not15Bit: + cmp Bits, 16 + jne @Not16bit + shl eax, 1 + add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x * 2 + mov ecx, [eax] + and ecx, $0000ffff + mov SrcColor, ecx + mov edx, Color + and ecx, $1f + and edx, $1f + add ecx, edx + cmp ecx, $1f + jbe @Skip1_16bit + mov ecx, $1f + @Skip1_16bit: + mov FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $07e0 + and edx, $07e0 + add ecx, edx + cmp ecx, $07e0 + jbe @Skip2_16bit + mov ecx, $07e0 + @Skip2_16bit: + or FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $f800 + and edx, $f800 + add ecx, edx + cmp ecx, $f800 + jbe @Skip3_16bit + mov ecx, $f800 + @Skip3_16bit: + or ecx, FinalColor + mov [eax], cx + jmp @Quit + @Not16Bit: + cmp Bits, 24 + jne @Not24bit + mov ecx, 0 + add ecx, eax + shl ecx, 1 + add ecx, eax + mov eax, ecx + jmp @32bit + @Not24bit: + shl eax, 2 + @32bit: + add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x * 2 + mov ecx, [eax] + mov FinalColor, ecx + and FinalColor, $ff000000 + and ecx, $00ffffff + mov SrcColor, ecx + mov edx, Color + and ecx, $000000ff + and edx, $000000ff + add ecx, edx + cmp ecx, $000000ff + jbe @Skip1_32bit + mov ecx, $000000ff + @Skip1_32bit: + or FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $0000ff00 + and edx, $0000ff00 + add ecx, edx + cmp ecx, $0000ff00 + jbe @Skip2_32bit + mov ecx, $0000ff00 + @Skip2_32bit: + or FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $00ff0000 + and edx, $00ff0000 + add ecx, edx + cmp ecx, $00ff0000 + jbe @Skip3_32bit + mov ecx, $00ff0000 + @Skip3_32bit: + or ecx, FinalColor + mov [eax], ecx + @Quit: + end; +end; + +procedure SDL_SubPixel( SrcSurface : PSDL_Surface; x : integer; y : integer; Color : + cardinal ); +var + SrcColor, FinalColor : cardinal; + Addr, Pitch, Bits : cardinal; +begin + if Color = 0 then + exit; + Addr := cardinal( SrcSurface.Pixels ); + Pitch := SrcSurface.Pitch; + Bits := SrcSurface.format.BitsPerPixel; + asm + mov eax, y + mul Pitch // EAX := y * Pitch + add Addr, eax // Addr:= Addr + (y * Pitch) + mov eax, x + cmp Bits, 8 + jne @Not8bit + add eax, Addr // Now: EAX:= Addr + (y * Pitch) + x + mov cl, [eax] + movzx ecx, cl + mov SrcColor, ecx + mov edx, Color + and ecx, 3 + and edx, 3 + sub ecx, edx + jns @Skip1_8bit + mov ecx, 0 + @Skip1_8bit: + mov FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $1c + and edx, $1c + sub ecx, edx + jns @Skip2_8bit + mov ecx, 0 + @Skip2_8bit: + or FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $e0 + and edx, $e0 + sub ecx, edx + jns @Skip3_8bit + mov ecx, 0 + @Skip3_8bit: + or ecx, FinalColor + mov [eax], cl + jmp @Quit + @Not8bit: + cmp Bits, 15 + jne @Not15bit + shl eax, 1 + add eax, Addr + mov ecx, [eax] + and ecx, $00007fff + mov SrcColor, ecx + mov edx, Color + and ecx, $1f + and edx, $1f + sub ecx, edx + jns @Skip1_15bit + mov ecx, 0 + @Skip1_15bit: + mov FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $03e0 + and edx, $03e0 + sub ecx, edx + jns @Skip2_15bit + mov ecx, 0 + @Skip2_15bit: + or FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $7c00 + and edx, $7c00 + sub ecx, edx + jns @Skip3_15bit + mov ecx, 0 + @Skip3_15bit: + or ecx, FinalColor + mov [eax], cx + jmp @Quit + @Not15Bit: + cmp Bits, 16 + jne @Not16bit + shl eax, 1 + add eax, Addr + mov ecx, [eax] + and ecx, $0000ffff + mov SrcColor, ecx + mov edx, Color + and ecx, $1f + and edx, $1f + sub ecx, edx + jns @Skip1_16bit + mov ecx, 0 + @Skip1_16bit: + mov FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $07e0 + and edx, $07e0 + sub ecx, edx + jns @Skip2_16bit + mov ecx, 0 + @Skip2_16bit: + or FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $f800 + and edx, $f800 + sub ecx, edx + jns @Skip3_16bit + mov ecx, 0 + @Skip3_16bit: + or ecx, FinalColor + mov [eax], cx + jmp @Quit + @Not16Bit: + cmp Bits, 24 + jne @Not24bit + mov ecx, 0 + add ecx, eax + shl ecx, 1 + add ecx, eax + mov eax, ecx + jmp @32bit + @Not24bit: + shl eax, 2 + @32bit: + add eax, Addr + mov ecx, [eax] + mov FinalColor, ecx + and FinalColor, $ff000000 + and ecx, $00ffffff + mov SrcColor, ecx + mov edx, Color + and ecx, $000000ff + and edx, $000000ff + sub ecx, edx + jns @Skip1_32bit + mov ecx, 0 + @Skip1_32bit: + or FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $0000ff00 + and edx, $0000ff00 + sub ecx, edx + jns @Skip2_32bit + mov ecx, 0 + @Skip2_32bit: + or FinalColor, ecx + mov ecx, SrcColor + mov edx, Color + and ecx, $00ff0000 + and edx, $00ff0000 + sub ecx, edx + jns @Skip3_32bit + mov ecx, 0 + @Skip3_32bit: + or ecx, FinalColor + mov [eax], ecx + @Quit: + end; +end; + +// Draw a line between x1,y1 and x2,y2 to the given surface +// NOTE: The surface must be locked before calling this! +procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal ); +var + dx, dy, sdx, sdy, x, y, px, py : integer; +begin + dx := x2 - x1; + dy := y2 - y1; + if dx < 0 then + sdx := -1 + else + sdx := 1; + if dy < 0 then + sdy := -1 + else + sdy := 1; + dx := sdx * dx + 1; + dy := sdy * dy + 1; + x := 0; + y := 0; + px := x1; + py := y1; + if dx >= dy then + begin + for x := 0 to dx - 1 do + begin + SDL_PutPixel( DstSurface, px, py, Color ); + y := y + dy; + if y >= dx then + begin + y := y - dx; + py := py + sdy; + end; + px := px + sdx; + end; + end + else + begin + for y := 0 to dy - 1 do + begin + SDL_PutPixel( DstSurface, px, py, Color ); + x := x + dx; + if x >= dy then + begin + x := x - dy; + px := px + sdx; + end; + py := py + sdy; + end; + end; +end; + +// Draw a dashed line between x1,y1 and x2,y2 to the given surface +// NOTE: The surface must be locked before calling this! +procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal ; DashLength, DashSpace : byte ); overload; +var + dx, dy, sdx, sdy, x, y, px, py, counter : integer; drawdash : boolean; +begin + counter := 0; + drawdash := true; //begin line drawing with dash + + //Avoid invalid user-passed dash parameters + if (DashLength < 1) + then DashLength := 1; + if (DashSpace < 1) + then DashSpace := 0; + + dx := x2 - x1; + dy := y2 - y1; + if dx < 0 then + sdx := -1 + else + sdx := 1; + if dy < 0 then + sdy := -1 + else + sdy := 1; + dx := sdx * dx + 1; + dy := sdy * dy + 1; + x := 0; + y := 0; + px := x1; + py := y1; + if dx >= dy then + begin + for x := 0 to dx - 1 do + begin + + //Alternate drawing dashes, or leaving spaces + if drawdash then + begin + SDL_PutPixel( DstSurface, px, py, Color ); + inc(counter); + if (counter > DashLength-1) and (DashSpace > 0) then + begin + drawdash := false; + counter := 0; + end; + end + else //space + begin + inc(counter); + if counter > DashSpace-1 then + begin + drawdash := true; + counter := 0; + end; + end; + + y := y + dy; + if y >= dx then + begin + y := y - dx; + py := py + sdy; + end; + px := px + sdx; + end; + end + else + begin + for y := 0 to dy - 1 do + begin + + //Alternate drawing dashes, or leaving spaces + if drawdash then + begin + SDL_PutPixel( DstSurface, px, py, Color ); + inc(counter); + if (counter > DashLength-1) and (DashSpace > 0) then + begin + drawdash := false; + counter := 0; + end; + end + else //space + begin + inc(counter); + if counter > DashSpace-1 then + begin + drawdash := true; + counter := 0; + end; + end; + + x := x + dx; + if x >= dy then + begin + x := x - dy; + px := px + sdx; + end; + py := py + sdy; + end; + end; +end; + +procedure SDL_AddLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal ); +var + dx, dy, sdx, sdy, x, y, px, py : integer; +begin + dx := x2 - x1; + dy := y2 - y1; + if dx < 0 then + sdx := -1 + else + sdx := 1; + if dy < 0 then + sdy := -1 + else + sdy := 1; + dx := sdx * dx + 1; + dy := sdy * dy + 1; + x := 0; + y := 0; + px := x1; + py := y1; + if dx >= dy then + begin + for x := 0 to dx - 1 do + begin + SDL_AddPixel( DstSurface, px, py, Color ); + y := y + dy; + if y >= dx then + begin + y := y - dx; + py := py + sdy; + end; + px := px + sdx; + end; + end + else + begin + for y := 0 to dy - 1 do + begin + SDL_AddPixel( DstSurface, px, py, Color ); + x := x + dx; + if x >= dy then + begin + x := x - dy; + px := px + sdx; + end; + py := py + sdy; + end; + end; +end; + +procedure SDL_SubLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal ); +var + dx, dy, sdx, sdy, x, y, px, py : integer; +begin + dx := x2 - x1; + dy := y2 - y1; + if dx < 0 then + sdx := -1 + else + sdx := 1; + if dy < 0 then + sdy := -1 + else + sdy := 1; + dx := sdx * dx + 1; + dy := sdy * dy + 1; + x := 0; + y := 0; + px := x1; + py := y1; + if dx >= dy then + begin + for x := 0 to dx - 1 do + begin + SDL_SubPixel( DstSurface, px, py, Color ); + y := y + dy; + if y >= dx then + begin + y := y - dx; + py := py + sdy; + end; + px := px + sdx; + end; + end + else + begin + for y := 0 to dy - 1 do + begin + SDL_SubPixel( DstSurface, px, py, Color ); + x := x + dx; + if x >= dy then + begin + x := x - dy; + px := px + sdx; + end; + py := py + sdy; + end; + end; +end; + +// This procedure works on 8, 15, 16, 24 and 32 bits color depth surfaces. +// In 8 bit color depth mode the procedure works with the default packed +// palette (RRRGGGBB). It handles all clipping. +procedure SDL_AddSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DstSurface : PSDL_Surface; DestRect : PSDL_Rect ); +var + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr : cardinal; + // TransparentColor: cardinal; + _ebx, _esi, _edi, _esp : cardinal; + WorkX, WorkY : word; + SrcMod, DestMod : cardinal; + Bits : cardinal; +begin + if ( SrcSurface = nil ) or ( DstSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DstSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DstSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + // TransparentColor := format.ColorKey; + end; + with DstSurface^ do + begin + DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + Bits := Format.BitsPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DstSurface ); + case bits of + 8 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov al, [esi] // AL := source color + cmp al, 0 + je @SkipColor // if AL=0 or AL=transparent color then skip everything + mov esp, eax // ESP - source color + mov bl, [edi] // BL := destination color + mov dl, bl // DL := destination color + and ax, $03 // Adding BLUE + and bl, $03 + add al, bl + cmp al, $03 + jbe @Skip1 + mov al, $03 + @Skip1: + mov cl, al + mov eax, esp // Adding GREEN + mov bl, dl + and al, $1c + and bl, $1c + add al, bl + cmp al, $1c + jbe @Skip2 + mov al, $1c + @Skip2: + or cl, al + mov eax, esp // Adding RED + mov bl, dl + and ax, $e0 + and bx, $e0 + add ax, bx + cmp ax, $e0 + jbe @Skip3 + mov al, $e0 + @Skip3: + or cl, al + mov [edi], cl + @SkipColor: + inc esi + inc edi + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 15 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov ax, [esi] // AX := source color + cmp ax, 0 + je @SkipColor // if AX=0 then skip everything + mov esp, eax // ESP - source color + mov bx, [edi] // BX := destination color + mov dx, bx // DX := destination color + and ax, $001F // Adding BLUE + and bx, $001F + add ax, bx + cmp ax, $001F + jbe @Skip1 + mov ax, $001F + @Skip1: + mov cx, ax + mov eax, esp // Adding GREEN + mov bx, dx + and ax, $3E0 + and bx, $3E0 + add ax, bx + cmp ax, $3E0 + jbe @Skip2 + mov ax, $3E0 + @Skip2: + or cx, ax + mov eax, esp // Adding RED + mov bx, dx + and ax, $7C00 + and bx, $7C00 + add ax, bx + cmp ax, $7C00 + jbe @Skip3 + mov ax, $7C00 + @Skip3: + or cx, ax + mov [edi], cx + @SkipColor: + add esi, 2 + add edi, 2 + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 16 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov ax, [esi] // AX := source color + cmp ax, 0 + je @SkipColor // if AX=0 then skip everything + mov esp, eax // ESP - source color + mov bx, [edi] // BX := destination color + mov dx, bx // DX := destination color + and ax, $1F // Adding BLUE + and bx, $1F + add ax, bx + cmp ax, $1F + jbe @Skip1 + mov ax, $1F + @Skip1: + mov cx, ax + mov eax, esp // Adding GREEN + mov bx, dx + and ax, $7E0 + and bx, $7E0 + add ax, bx + cmp ax, $7E0 + jbe @Skip2 + mov ax, $7E0 + @Skip2: + or cx, ax + mov eax, esp // Adding RED + mov bx, dx + and eax, $F800 + and ebx, $F800 + add eax, ebx + cmp eax, $F800 + jbe @Skip3 + mov ax, $F800 + @Skip3: + or cx, ax + mov [edi], cx + @SkipColor: + add esi, 2 + add edi, 2 + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 24 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + add WorkX, ax // WorkX := Src.w * 2 + add WorkX, ax // WorkX := Src.w * 3 + @Loopx: + mov bl, [edi] // BX := destination color + mov al, [esi] // AX := source color + cmp al, 0 + je @Skip // if AL=0 then skip COMPONENT + mov ah, 0 // AX := COLOR COMPONENT + mov bh, 0 + add bx, ax + cmp bx, $00ff + jb @Skip + mov bl, $ff + @Skip: + mov [edi], bl + inc esi + inc edi + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 32 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + shl ax, 2 + mov WorkX, ax // WorkX := Src.w * 4 + @Loopx: + mov bl, [edi] // BX := destination color + mov al, [esi] // AX := source color + cmp al, 0 + je @Skip // if AL=0 then skip COMPONENT + mov ah, 0 // AX := COLOR COMPONENT + mov bh, 0 + add bx, ax + cmp bx, $00ff + jb @Skip + mov bl, $ff + @Skip: + mov [edi], bl + inc esi + inc edi + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DstSurface ); +end; + +procedure SDL_SubSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DstSurface : PSDL_Surface; DestRect : PSDL_Rect ); +var + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr : cardinal; + _ebx, _esi, _edi, _esp : cardinal; + WorkX, WorkY : word; + SrcMod, DestMod : cardinal; + Bits : cardinal; +begin + if ( SrcSurface = nil ) or ( DstSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DstSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DstSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + end; + with DstSurface^ do + begin + DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + Bits := DstSurface.Format.BitsPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DstSurface ); + case bits of + 8 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov al, [esi] // AL := source color + cmp al, 0 + je @SkipColor // if AL=0 then skip everything + mov esp, eax // ESP - source color + mov bl, [edi] // BL := destination color + mov dl, bl // DL := destination color + and al, $03 // Subtract BLUE + and bl, $03 + sub bl, al + jns @Skip1 + mov bl, 0 + @Skip1: + mov cl, bl + mov eax, esp // Subtract GREEN + mov bl, dl + and al, $1c + and bl, $1c + sub bl, al + jns @Skip2 + mov bl, 0 + @Skip2: + or cl, bl + mov eax, esp // Subtract RED + mov bl, dl + and ax, $e0 + and bx, $e0 + sub bx, ax + jns @Skip3 + mov bl, 0 + @Skip3: + or cl, bl + mov [edi], cl + @SkipColor: + inc esi + inc edi + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 15 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov ax, [esi] // AX := source color + cmp ax, 0 + je @SkipColor // if AX=0 then skip everything + mov esp, eax // ESP - source color + mov bx, [edi] // BX := destination color + mov dx, bx // DX := destination color + and ax, $001F // Subtract BLUE + and bx, $001F + sub bx, ax + jns @Skip1 + mov bx, 0 + @Skip1: + mov cx, bx + mov eax, esp // Subtract GREEN + mov bx, dx + and ax, $3E0 + and bx, $3E0 + sub bx, ax + jns @Skip2 + mov bx, 0 + @Skip2: + or cx, bx + mov eax, esp // Subtract RED + mov bx, dx + and ax, $7C00 + and bx, $7C00 + sub bx, ax + jns @Skip3 + mov bx, 0 + @Skip3: + or cx, bx + mov [edi], cx + @SkipColor: + add esi, 2 + add edi, 2 + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 16 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov ax, [esi] // AX := source color + cmp ax, 0 + je @SkipColor // if AX=0 then skip everything + mov esp, eax // ESP - source color + mov bx, [edi] // BX := destination color + mov dx, bx // DX := destination color + and ax, $1F // Subtracting BLUE + and bx, $1F + sub bx, ax + jns @Skip1 + mov bx, 0 + @Skip1: + mov cx, bx + mov eax, esp // Adding GREEN + mov bx, dx + and ax, $7E0 + and bx, $7E0 + sub bx, ax + jns @Skip2 + mov bx, 0 + @Skip2: + or cx, bx + mov eax, esp // Adding RED + mov bx, dx + and eax, $F800 + and ebx, $F800 + sub ebx, eax + jns @Skip3 + mov bx, 0 + @Skip3: + or cx, bx + mov [edi], cx + @SkipColor: + add esi, 2 + add edi, 2 + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 24 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + add WorkX, ax // WorkX := Src.w * 2 + add WorkX, ax // WorkX := Src.w * 3 + @Loopx: + mov bl, [edi] // BX := destination color + mov al, [esi] // AX := source color + cmp al, 0 + je @Skip // if AL=0 then skip COMPONENT + mov ah, 0 // AX := COLOR COMPONENT + mov bh, 0 + sub bx, ax + jns @Skip + mov bl, 0 + @Skip: + mov [edi], bl + inc esi + inc edi + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 32 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + shl ax, 2 + mov WorkX, ax // WorkX := Src.w * 4 + @Loopx: + mov bl, [edi] // BX := destination color + mov al, [esi] // AX := source color + cmp al, 0 + je @Skip // if AL=0 then skip COMPONENT + mov ah, 0 // AX := COLOR COMPONENT + mov bh, 0 + sub bx, ax + jns @Skip + mov bl, 0 + @Skip: + mov [edi], bl + inc esi + inc edi + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DstSurface ); +end; + +procedure SDL_MonoSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DstSurface : PSDL_Surface; DestRect : PSDL_Rect; Color : cardinal ); +var + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr : cardinal; + _ebx, _esi, _edi, _esp : cardinal; + WorkX, WorkY : word; + SrcMod, DestMod : cardinal; + SrcTransparentColor : cardinal; + Bits : cardinal; +begin + if ( SrcSurface = nil ) or ( DstSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DstSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DstSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + SrcTransparentColor := format.colorkey; + end; + with DstSurface^ do + begin + DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + Bits := DstSurface.Format.BitsPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DstSurface ); + case bits of + 8 : + asm + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + mov ecx, Color + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov al, [esi] // AL := source color + movzx eax, al + cmp eax, SrcTransparentColor + je @SkipColor // if AL=Transparent color then skip everything + mov [edi], cl + @SkipColor: + inc esi + inc edi + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + end; + 15, 16 : + asm + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + mov ecx, Color + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov ax, [esi] // AX := source color + movzx eax, ax + cmp eax, SrcTransparentColor + je @SkipColor // if AX=Transparent color then skip everything + mov [edi], cx + @SkipColor: + inc esi + inc esi + inc edi + inc edi + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + end; + 24 : + asm + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov _ebx, ebx + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + mov ecx, Color + and ecx, $00ffffff + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov eax, [esi] // EAX := source color + and eax, $00ffffff + cmp eax, SrcTransparentColor + je @SkipColor // if EAX=Transparent color then skip everything + mov ebx, [edi] + and ebx, $ff000000 + or ebx, ecx + mov [edi], ecx + @SkipColor: + add esi, 3 + add edi, 3 + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp, _esp + mov edi, _edi + mov esi, _esi + mov ebx, _ebx + end; + 32 : + asm + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + mov ecx, Color + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov eax, [esi] // EAX := source color + cmp eax, SrcTransparentColor + je @SkipColor // if EAX=Transparent color then skip everything + mov [edi], ecx + @SkipColor: + add esi, 4 + add edi, 4 + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp, _esp + mov edi, _edi + mov esi, _esi + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DstSurface ); +end; +// TextureRect.w and TextureRect.h are not used. +// The TextureSurface's size MUST larger than the drawing rectangle!!! + +procedure SDL_TexturedSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DstSurface : PSDL_Surface; DestRect : PSDL_Rect; Texture : PSDL_Surface; + TextureRect : PSDL_Rect ); +var + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr, TextAddr : cardinal; + _ebx, _esi, _edi, _esp : cardinal; + WorkX, WorkY : word; + SrcMod, DestMod, TextMod : cardinal; + SrcTransparentColor : cardinal; + Bits : cardinal; +begin + if ( SrcSurface = nil ) or ( DstSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DstSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DstSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + SrcTransparentColor := format.colorkey; + end; + with DstSurface^ do + begin + DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + Bits := DstSurface.Format.BitsPerPixel; + end; + with Texture^ do + begin + TextAddr := cardinal( Pixels ) + UInt32( TextureRect.y ) * Pitch + + UInt32( TextureRect.x ) * Format.BytesPerPixel; + TextMod := Pitch - Src.w * Format.BytesPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DstSurface ); + SDL_LockSurface( Texture ); + case bits of + 8 : + asm + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov _ebx, ebx + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ebx, TextAddr + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov al, [esi] // AL := source color + movzx eax, al + cmp eax, SrcTransparentColor + je @SkipColor // if AL=Transparent color then skip everything + mov al, [ebx] + mov [edi], al + @SkipColor: + inc esi + inc edi + inc ebx + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + add ebx, TextMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx, _ebx + end; + 15, 16 : + asm + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ecx, TextAddr + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov ax, [esi] // AL := source color + movzx eax, ax + cmp eax, SrcTransparentColor + je @SkipColor // if AL=Transparent color then skip everything + mov ax, [ecx] + mov [edi], ax + @SkipColor: + inc esi + inc esi + inc edi + inc edi + inc ecx + inc ecx + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + add ecx, TextMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + end; + 24 : + asm + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov _ebx, ebx + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ebx, TextAddr + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov eax, [esi] // AL := source color + and eax, $00ffffff + cmp eax, SrcTransparentColor + je @SkipColor // if AL=Transparent color then skip everything + mov eax, [ebx] + and eax, $00ffffff + mov ecx, [edi] + and ecx, $ff000000 + or ecx, eax + mov [edi], eax + @SkipColor: + add esi, 3 + add edi, 3 + add ebx, 3 + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + add ebx, TextMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx, _ebx + end; + 32 : + asm + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ecx, TextAddr + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov eax, [esi] // AL := source color + cmp eax, SrcTransparentColor + je @SkipColor // if AL=Transparent color then skip everything + mov eax, [ecx] + mov [edi], eax + @SkipColor: + add esi, 4 + add edi, 4 + add ecx, 4 + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + add ecx, TextMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DstSurface ); + SDL_UnlockSurface( Texture ); +end; + +procedure SDL_ZoomSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; DstRect : PSDL_Rect ); +var + xc, yc : cardinal; + rx, wx, ry, wy, ry16 : cardinal; + color : cardinal; + modx, mody : cardinal; +begin + // Warning! No checks for surface pointers!!! + if srcrect = nil then + srcrect := @SrcSurface.clip_rect; + if dstrect = nil then + dstrect := @DstSurface.clip_rect; + if SDL_MustLock( SrcSurface ) then + SDL_LockSurface( SrcSurface ); + if SDL_MustLock( DstSurface ) then + SDL_LockSurface( DstSurface ); + modx := trunc( ( srcrect.w / dstrect.w ) * 65536 ); + mody := trunc( ( srcrect.h / dstrect.h ) * 65536 ); + //rx := srcrect.x * 65536; + ry := srcrect.y * 65536; + wy := dstrect.y; + for yc := 0 to dstrect.h - 1 do + begin + rx := srcrect.x * 65536; + wx := dstrect.x; + ry16 := ry shr 16; + for xc := 0 to dstrect.w - 1 do + begin + color := SDL_GetPixel( SrcSurface, rx shr 16, ry16 ); + SDL_PutPixel( DstSurface, wx, wy, color ); + rx := rx + modx; + inc( wx ); + end; + ry := ry + mody; + inc( wy ); + end; + if SDL_MustLock( SrcSurface ) then + SDL_UnlockSurface( SrcSurface ); + if SDL_MustLock( DstSurface ) then + SDL_UnlockSurface( DstSurface ); +end; +// Re-map a rectangular area into an area defined by four vertices +// Converted from C to Pascal by KiCHY + +procedure SDL_WarpSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; UL, UR, LR, LL : PPoint ); +const + SHIFTS = 15; // Extend ints to limit round-off error (try 2 - 20) + THRESH = 1 shl SHIFTS; // Threshold for pixel size value + procedure CopySourceToDest( UL, UR, LR, LL : TPoint; x1, y1, x2, y2 : cardinal ); + var + tm, lm, rm, bm, m : TPoint; + mx, my : cardinal; + cr : cardinal; + begin + // Does the destination area specify a single pixel? + if ( ( abs( ul.x - ur.x ) < THRESH ) and + ( abs( ul.x - lr.x ) < THRESH ) and + ( abs( ul.x - ll.x ) < THRESH ) and + ( abs( ul.y - ur.y ) < THRESH ) and + ( abs( ul.y - lr.y ) < THRESH ) and + ( abs( ul.y - ll.y ) < THRESH ) ) then + begin // Yes + cr := SDL_GetPixel( SrcSurface, ( x1 shr SHIFTS ), ( y1 shr SHIFTS ) ); + SDL_PutPixel( DstSurface, ( ul.x shr SHIFTS ), ( ul.y shr SHIFTS ), cr ); + end + else + begin // No + // Quarter the source and the destination, and then recurse + tm.x := ( ul.x + ur.x ) shr 1; + tm.y := ( ul.y + ur.y ) shr 1; + bm.x := ( ll.x + lr.x ) shr 1; + bm.y := ( ll.y + lr.y ) shr 1; + lm.x := ( ul.x + ll.x ) shr 1; + lm.y := ( ul.y + ll.y ) shr 1; + rm.x := ( ur.x + lr.x ) shr 1; + rm.y := ( ur.y + lr.y ) shr 1; + m.x := ( tm.x + bm.x ) shr 1; + m.y := ( tm.y + bm.y ) shr 1; + mx := ( x1 + x2 ) shr 1; + my := ( y1 + y2 ) shr 1; + CopySourceToDest( ul, tm, m, lm, x1, y1, mx, my ); + CopySourceToDest( tm, ur, rm, m, mx, y1, x2, my ); + CopySourceToDest( m, rm, lr, bm, mx, my, x2, y2 ); + CopySourceToDest( lm, m, bm, ll, x1, my, mx, y2 ); + end; + end; +var + _UL, _UR, _LR, _LL : TPoint; + Rect_x, Rect_y, Rect_w, Rect_h : integer; +begin + if SDL_MustLock( SrcSurface ) then + SDL_LockSurface( SrcSurface ); + if SDL_MustLock( DstSurface ) then + SDL_LockSurface( DstSurface ); + if SrcRect = nil then + begin + Rect_x := 0; + Rect_y := 0; + Rect_w := ( SrcSurface.w - 1 ) shl SHIFTS; + Rect_h := ( SrcSurface.h - 1 ) shl SHIFTS; + end + else + begin + Rect_x := SrcRect.x; + Rect_y := SrcRect.y; + Rect_w := ( SrcRect.w - 1 ) shl SHIFTS; + Rect_h := ( SrcRect.h - 1 ) shl SHIFTS; + end; + // Shift all values to help reduce round-off error. + _ul.x := ul.x shl SHIFTS; + _ul.y := ul.y shl SHIFTS; + _ur.x := ur.x shl SHIFTS; + _ur.y := ur.y shl SHIFTS; + _lr.x := lr.x shl SHIFTS; + _lr.y := lr.y shl SHIFTS; + _ll.x := ll.x shl SHIFTS; + _ll.y := ll.y shl SHIFTS; + CopySourceToDest( _ul, _ur, _lr, _ll, Rect_x, Rect_y, Rect_w, Rect_h ); + if SDL_MustLock( SrcSurface ) then + SDL_UnlockSurface( SrcSurface ); + if SDL_MustLock( DstSurface ) then + SDL_UnlockSurface( DstSurface ); +end; + +// flips a rectangle vertically on given surface +procedure SDL_FlipRectV( DstSurface : PSDL_Surface; Rect : PSDL_Rect ); +var + TmpRect : TSDL_Rect; + Locked : boolean; + y, FlipLength, RowLength : integer; + Row1, Row2 : Pointer; + OneRow : TByteArray; // Optimize it if you wish +begin + if DstSurface <> nil then + begin + if Rect = nil then + begin // if Rect=nil then we flip the whole surface + TmpRect := SDLRect( 0, 0, DstSurface.w, DstSurface.h ); + Rect := @TmpRect; + end; + FlipLength := Rect^.h shr 1 - 1; + RowLength := Rect^.w * DstSurface^.format.BytesPerPixel; + if SDL_MustLock( DstSurface ) then + begin + Locked := true; + SDL_LockSurface( DstSurface ); + end + else + Locked := false; + Row1 := pointer( cardinal( DstSurface^.Pixels ) + UInt32( Rect^.y ) * + DstSurface^.Pitch ); + Row2 := pointer( cardinal( DstSurface^.Pixels ) + ( UInt32( Rect^.y ) + Rect^.h - 1 ) + * DstSurface^.Pitch ); + for y := 0 to FlipLength do + begin + Move( Row1^, OneRow, RowLength ); + Move( Row2^, Row1^, RowLength ); + Move( OneRow, Row2^, RowLength ); + inc( cardinal( Row1 ), DstSurface^.Pitch ); + dec( cardinal( Row2 ), DstSurface^.Pitch ); + end; + if Locked then + SDL_UnlockSurface( DstSurface ); + end; +end; + +// flips a rectangle horizontally on given surface +procedure SDL_FlipRectH( DstSurface : PSDL_Surface; Rect : PSDL_Rect ); +type + T24bit = packed array[ 0..2 ] of byte; + T24bitArray = packed array[ 0..8191 ] of T24bit; + P24bitArray = ^T24bitArray; + TLongWordArray = array[ 0..8191 ] of LongWord; + PLongWordArray = ^TLongWordArray; +var + TmpRect : TSDL_Rect; + Row8bit : PByteArray; + Row16bit : PWordArray; + Row24bit : P24bitArray; + Row32bit : PLongWordArray; + y, x, RightSide, FlipLength : integer; + Pixel : cardinal; + Pixel24 : T24bit; + Locked : boolean; +begin + if DstSurface <> nil then + begin + if Rect = nil then + begin + TmpRect := SDLRect( 0, 0, DstSurface.w, DstSurface.h ); + Rect := @TmpRect; + end; + FlipLength := Rect^.w shr 1 - 1; + if SDL_MustLock( DstSurface ) then + begin + Locked := true; + SDL_LockSurface( DstSurface ); + end + else + Locked := false; + case DstSurface^.format.BytesPerPixel of + 1 : + begin + Row8Bit := pointer( cardinal( DstSurface^.pixels ) + UInt32( Rect^.y ) * + DstSurface^.pitch ); + for y := 1 to Rect^.h do + begin + RightSide := Rect^.w - 1; + for x := 0 to FlipLength do + begin + Pixel := Row8Bit^[ x ]; + Row8Bit^[ x ] := Row8Bit^[ RightSide ]; + Row8Bit^[ RightSide ] := Pixel; + dec( RightSide ); + end; + inc( cardinal( Row8Bit ), DstSurface^.pitch ); + end; + end; + 2 : + begin + Row16Bit := pointer( cardinal( DstSurface^.pixels ) + UInt32( Rect^.y ) * + DstSurface^.pitch ); + for y := 1 to Rect^.h do + begin + RightSide := Rect^.w - 1; + for x := 0 to FlipLength do + begin + Pixel := Row16Bit^[ x ]; + Row16Bit^[ x ] := Row16Bit^[ RightSide ]; + Row16Bit^[ RightSide ] := Pixel; + dec( RightSide ); + end; + inc( cardinal( Row16Bit ), DstSurface^.pitch ); + end; + end; + 3 : + begin + Row24Bit := pointer( cardinal( DstSurface^.pixels ) + UInt32( Rect^.y ) * + DstSurface^.pitch ); + for y := 1 to Rect^.h do + begin + RightSide := Rect^.w - 1; + for x := 0 to FlipLength do + begin + Pixel24 := Row24Bit^[ x ]; + Row24Bit^[ x ] := Row24Bit^[ RightSide ]; + Row24Bit^[ RightSide ] := Pixel24; + dec( RightSide ); + end; + inc( cardinal( Row24Bit ), DstSurface^.pitch ); + end; + end; + 4 : + begin + Row32Bit := pointer( cardinal( DstSurface^.pixels ) + UInt32( Rect^.y ) * + DstSurface^.pitch ); + for y := 1 to Rect^.h do + begin + RightSide := Rect^.w - 1; + for x := 0 to FlipLength do + begin + Pixel := Row32Bit^[ x ]; + Row32Bit^[ x ] := Row32Bit^[ RightSide ]; + Row32Bit^[ RightSide ] := Pixel; + dec( RightSide ); + end; + inc( cardinal( Row32Bit ), DstSurface^.pitch ); + end; + end; + end; + if Locked then + SDL_UnlockSurface( DstSurface ); + end; +end; + +// Use with caution! The procedure allocates memory for TSDL_Rect and return with its pointer. +// But you MUST free it after you don't need it anymore!!! +function PSDLRect( aLeft, aTop, aWidth, aHeight : integer ) : PSDL_Rect; +var + Rect : PSDL_Rect; +begin + New( Rect ); + with Rect^ do + begin + x := aLeft; + y := aTop; + w := aWidth; + h := aHeight; + end; + Result := Rect; +end; + +function SDLRect( aLeft, aTop, aWidth, aHeight : integer ) : TSDL_Rect; +begin + with result do + begin + x := aLeft; + y := aTop; + w := aWidth; + h := aHeight; + end; +end; + +function SDLRect( aRect : TRect ) : TSDL_Rect; +begin + with aRect do + result := SDLRect( Left, Top, Right - Left, Bottom - Top ); +end; + +procedure SDL_Stretch8( Surface, Dst_Surface : PSDL_Surface; x1, x2, y1, y2, yr, yw, + depth : integer ); +var + dx, dy, e, d, dx2 : integer; + src_pitch, dst_pitch : uint16; + src_pixels, dst_pixels : PUint8; +begin + if ( yw >= dst_surface^.h ) then + exit; + dx := ( x2 - x1 ); + dy := ( y2 - y1 ); + dy := dy shl 1; + e := dy - dx; + dx2 := dx shl 1; + src_pitch := Surface^.pitch; + dst_pitch := dst_surface^.pitch; + src_pixels := PUint8( integer( Surface^.pixels ) + yr * src_pitch + y1 * depth ); + dst_pixels := PUint8( integer( dst_surface^.pixels ) + yw * dst_pitch + x1 * + depth ); + for d := 0 to dx - 1 do + begin + move( src_pixels^, dst_pixels^, depth ); + while ( e >= 0 ) do + begin + inc( src_pixels, depth ); + e := e - dx2; + end; + inc( dst_pixels, depth ); + e := e + dy; + end; +end; + +function sign( x : integer ) : integer; +begin + if x > 0 then + result := 1 + else + result := -1; +end; + +// Stretches a part of a surface +function SDL_ScaleSurfaceRect( SrcSurface : PSDL_Surface; SrcX1, SrcY1, SrcW, SrcH, + Width, Height : integer ) : PSDL_Surface; +var + dst_surface : PSDL_Surface; + dx, dy, e, d, dx2, srcx2, srcy2 : integer; + destx1, desty1 : integer; +begin + srcx2 := srcx1 + SrcW; + srcy2 := srcy1 + SrcH; + result := nil; + destx1 := 0; + desty1 := 0; + dx := abs( integer( Height - desty1 ) ); + dy := abs( integer( SrcY2 - SrcY1 ) ); + e := ( dy shl 1 ) - dx; + dx2 := dx shl 1; + dy := dy shl 1; + dst_surface := SDL_CreateRGBSurface( SDL_HWPALETTE, width - destx1, Height - + desty1, + SrcSurface^.Format^.BitsPerPixel, + SrcSurface^.Format^.RMask, + SrcSurface^.Format^.GMask, + SrcSurface^.Format^.BMask, + SrcSurface^.Format^.AMask ); + if ( dst_surface^.format^.BytesPerPixel = 1 ) then + SDL_SetColors( dst_surface, @SrcSurface^.format^.palette^.colors^[ 0 ], 0, 256 ); + SDL_SetColorKey( dst_surface, sdl_srccolorkey, SrcSurface^.format^.colorkey ); + if ( SDL_MustLock( dst_surface ) ) then + if ( SDL_LockSurface( dst_surface ) < 0 ) then + exit; + for d := 0 to dx - 1 do + begin + SDL_Stretch8( SrcSurface, dst_surface, destx1, Width, SrcX1, SrcX2, SrcY1, desty1, + SrcSurface^.format^.BytesPerPixel ); + while e >= 0 do + begin + inc( SrcY1 ); + e := e - dx2; + end; + inc( desty1 ); + e := e + dy; + end; + if SDL_MUSTLOCK( dst_surface ) then + SDL_UnlockSurface( dst_surface ); + result := dst_surface; +end; + +procedure SDL_ScrollY( DstSurface : PSDL_Surface; DifY : integer ); +var + r1, r2 : TSDL_Rect; + //buffer: PSDL_Surface; + YPos : Integer; +begin + if ( DstSurface <> nil ) and ( DifY <> 0 ) then + begin + //if DifY > 0 then // going up + //begin + ypos := 0; + r1.x := 0; + r2.x := 0; + r1.w := DstSurface.w; + r2.w := DstSurface.w; + r1.h := DifY; + r2.h := DifY; + while ypos < DstSurface.h do + begin + r1.y := ypos; + r2.y := ypos + DifY; + SDL_BlitSurface( DstSurface, @r2, DstSurface, @r1 ); + ypos := ypos + DifY; + end; + //end + //else + //begin // Going Down + //end; + end; +end; + +procedure SDL_ScrollX( DstSurface : PSDL_Surface; DifX : integer ); +var + r1, r2 : TSDL_Rect; + buffer : PSDL_Surface; +begin + if ( DstSurface <> nil ) and ( DifX <> 0 ) then + begin + buffer := SDL_CreateRGBSurface( SDL_HWSURFACE, ( DstSurface^.w - DifX ) * 2, + DstSurface^.h * 2, + DstSurface^.Format^.BitsPerPixel, + DstSurface^.Format^.RMask, + DstSurface^.Format^.GMask, + DstSurface^.Format^.BMask, + DstSurface^.Format^.AMask ); + if buffer <> nil then + begin + if ( buffer^.format^.BytesPerPixel = 1 ) then + SDL_SetColors( buffer, @DstSurface^.format^.palette^.colors^[ 0 ], 0, 256 ); + r1 := SDLRect( DifX, 0, buffer^.w, buffer^.h ); + r2 := SDLRect( 0, 0, buffer^.w, buffer^.h ); + SDL_BlitSurface( DstSurface, @r1, buffer, @r2 ); + SDL_BlitSurface( buffer, @r2, DstSurface, @r2 ); + SDL_FreeSurface( buffer ); + end; + end; +end; + +procedure SDL_RotateRad( DstSurface, SrcSurface : PSDL_Surface; SrcRect : + PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Single ); +var + aSin, aCos : Single; + MX, MY, DX, DY, NX, NY, SX, SY, OX, OY, Width, Height, TX, TY, RX, RY, ROX, ROY : Integer; + Colour, TempTransparentColour : UInt32; + MAXX, MAXY : Integer; +begin + // Rotate the surface to the target surface. + TempTransparentColour := SrcSurface.format.colorkey; + if srcRect.w > srcRect.h then + begin + Width := srcRect.w; + Height := srcRect.w; + end + else + begin + Width := srcRect.h; + Height := srcRect.h; + end; + + maxx := DstSurface.w; + maxy := DstSurface.h; + aCos := cos( Angle ); + aSin := sin( Angle ); + + Width := round( abs( srcrect.h * acos ) + abs( srcrect.w * asin ) ); + Height := round( abs( srcrect.h * asin ) + abs( srcrect.w * acos ) ); + + OX := Width div 2; + OY := Height div 2; ; + MX := ( srcRect.x + ( srcRect.x + srcRect.w ) ) div 2; + MY := ( srcRect.y + ( srcRect.y + srcRect.h ) ) div 2; + ROX := ( -( srcRect.w div 2 ) ) + Offsetx; + ROY := ( -( srcRect.h div 2 ) ) + OffsetY; + Tx := ox + round( ROX * aSin - ROY * aCos ); + Ty := oy + round( ROY * aSin + ROX * aCos ); + SX := 0; + for DX := DestX - TX to DestX - TX + ( width ) do + begin + Inc( SX ); + SY := 0; + for DY := DestY - TY to DestY - TY + ( Height ) do + begin + RX := SX - OX; + RY := SY - OY; + NX := round( mx + RX * aSin + RY * aCos ); // + NY := round( my + RY * aSin - RX * aCos ); // + // Used for testing only + //SDL_PutPixel(DstSurface.SDLSurfacePointer,DX,DY,0); + if ( ( DX > 0 ) and ( DX < MAXX ) ) and ( ( DY > 0 ) and ( DY < MAXY ) ) then + begin + if ( NX >= srcRect.x ) and ( NX <= srcRect.x + srcRect.w ) then + begin + if ( NY >= srcRect.y ) and ( NY <= srcRect.y + srcRect.h ) then + begin + Colour := SDL_GetPixel( SrcSurface, NX, NY ); + if Colour <> TempTransparentColour then + begin + SDL_PutPixel( DstSurface, DX, DY, Colour ); + end; + end; + end; + end; + inc( SY ); + end; + end; +end; + +procedure SDL_RotateDeg( DstSurface, SrcSurface : PSDL_Surface; SrcRect : + PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Integer ); +begin + SDL_RotateRad( DstSurface, SrcSurface, SrcRect, DestX, DestY, OffsetX, OffsetY, DegToRad( Angle ) ); +end; + +function ValidateSurfaceRect( DstSurface : PSDL_Surface; dstrect : PSDL_Rect ) : TSDL_Rect; +var + RealRect : TSDL_Rect; + OutOfRange : Boolean; +begin + OutOfRange := false; + if dstrect = nil then + begin + RealRect.x := 0; + RealRect.y := 0; + RealRect.w := DstSurface.w; + RealRect.h := DstSurface.h; + end + else + begin + if dstrect.x < DstSurface.w then + begin + RealRect.x := dstrect.x; + end + else if dstrect.x < 0 then + begin + realrect.x := 0; + end + else + begin + OutOfRange := True; + end; + if dstrect.y < DstSurface.h then + begin + RealRect.y := dstrect.y; + end + else if dstrect.y < 0 then + begin + realrect.y := 0; + end + else + begin + OutOfRange := True; + end; + if OutOfRange = False then + begin + if realrect.x + dstrect.w <= DstSurface.w then + begin + RealRect.w := dstrect.w; + end + else + begin + RealRect.w := dstrect.w - realrect.x; + end; + if realrect.y + dstrect.h <= DstSurface.h then + begin + RealRect.h := dstrect.h; + end + else + begin + RealRect.h := dstrect.h - realrect.y; + end; + end; + end; + if OutOfRange = False then + begin + result := realrect; + end + else + begin + realrect.w := 0; + realrect.h := 0; + realrect.x := 0; + realrect.y := 0; + result := realrect; + end; +end; + +procedure SDL_FillRectAdd( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 ); +var + RealRect : TSDL_Rect; + Addr : pointer; + ModX, BPP : cardinal; + x, y, R, G, B, SrcColor : cardinal; +begin + RealRect := ValidateSurfaceRect( DstSurface, DstRect ); + if ( RealRect.w > 0 ) and ( RealRect.h > 0 ) then + begin + SDL_LockSurface( DstSurface ); + BPP := DstSurface.format.BytesPerPixel; + with DstSurface^ do + begin + Addr := pointer( UInt32( pixels ) + UInt32( RealRect.y ) * pitch + UInt32( RealRect.x ) * BPP ); + ModX := Pitch - UInt32( RealRect.w ) * BPP; + end; + case DstSurface.format.BitsPerPixel of + 8 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $E0 + Color and $E0; + G := SrcColor and $1C + Color and $1C; + B := SrcColor and $03 + Color and $03; + if R > $E0 then + R := $E0; + if G > $1C then + G := $1C; + if B > $03 then + B := $03; + PUInt8( Addr )^ := R or G or B; + inc( UInt32( Addr ), BPP ); + end; + inc( UInt32( Addr ), ModX ); + end; + end; + 15 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $7C00 + Color and $7C00; + G := SrcColor and $03E0 + Color and $03E0; + B := SrcColor and $001F + Color and $001F; + if R > $7C00 then + R := $7C00; + if G > $03E0 then + G := $03E0; + if B > $001F then + B := $001F; + PUInt16( Addr )^ := R or G or B; + inc( UInt32( Addr ), BPP ); + end; + inc( UInt32( Addr ), ModX ); + end; + end; + 16 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $F800 + Color and $F800; + G := SrcColor and $07C0 + Color and $07C0; + B := SrcColor and $001F + Color and $001F; + if R > $F800 then + R := $F800; + if G > $07C0 then + G := $07C0; + if B > $001F then + B := $001F; + PUInt16( Addr )^ := R or G or B; + inc( UInt32( Addr ), BPP ); + end; + inc( UInt32( Addr ), ModX ); + end; + end; + 24 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $00FF0000 + Color and $00FF0000; + G := SrcColor and $0000FF00 + Color and $0000FF00; + B := SrcColor and $000000FF + Color and $000000FF; + if R > $FF0000 then + R := $FF0000; + if G > $00FF00 then + G := $00FF00; + if B > $0000FF then + B := $0000FF; + PUInt32( Addr )^ := SrcColor and $FF000000 or R or G or B; + inc( UInt32( Addr ), BPP ); + end; + inc( UInt32( Addr ), ModX ); + end; + end; + 32 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $00FF0000 + Color and $00FF0000; + G := SrcColor and $0000FF00 + Color and $0000FF00; + B := SrcColor and $000000FF + Color and $000000FF; + if R > $FF0000 then + R := $FF0000; + if G > $00FF00 then + G := $00FF00; + if B > $0000FF then + B := $0000FF; + PUInt32( Addr )^ := R or G or B; + inc( UInt32( Addr ), BPP ); + end; + inc( UInt32( Addr ), ModX ); + end; + end; + end; + SDL_UnlockSurface( DstSurface ); + end; +end; + +procedure SDL_FillRectSub( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 ); +var + RealRect : TSDL_Rect; + Addr : pointer; + ModX, BPP : cardinal; + x, y, R, G, B, SrcColor : cardinal; +begin + RealRect := ValidateSurfaceRect( DstSurface, DstRect ); + if ( RealRect.w > 0 ) and ( RealRect.h > 0 ) then + begin + SDL_LockSurface( DstSurface ); + BPP := DstSurface.format.BytesPerPixel; + with DstSurface^ do + begin + Addr := pointer( UInt32( pixels ) + UInt32( RealRect.y ) * pitch + UInt32( RealRect.x ) * BPP ); + ModX := Pitch - UInt32( RealRect.w ) * BPP; + end; + case DstSurface.format.BitsPerPixel of + 8 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $E0 - Color and $E0; + G := SrcColor and $1C - Color and $1C; + B := SrcColor and $03 - Color and $03; + if R > $E0 then + R := 0; + if G > $1C then + G := 0; + if B > $03 then + B := 0; + PUInt8( Addr )^ := R or G or B; + inc( UInt32( Addr ), BPP ); + end; + inc( UInt32( Addr ), ModX ); + end; + end; + 15 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $7C00 - Color and $7C00; + G := SrcColor and $03E0 - Color and $03E0; + B := SrcColor and $001F - Color and $001F; + if R > $7C00 then + R := 0; + if G > $03E0 then + G := 0; + if B > $001F then + B := 0; + PUInt16( Addr )^ := R or G or B; + inc( UInt32( Addr ), BPP ); + end; + inc( UInt32( Addr ), ModX ); + end; + end; + 16 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $F800 - Color and $F800; + G := SrcColor and $07C0 - Color and $07C0; + B := SrcColor and $001F - Color and $001F; + if R > $F800 then + R := 0; + if G > $07C0 then + G := 0; + if B > $001F then + B := 0; + PUInt16( Addr )^ := R or G or B; + inc( UInt32( Addr ), BPP ); + end; + inc( UInt32( Addr ), ModX ); + end; + end; + 24 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $00FF0000 - Color and $00FF0000; + G := SrcColor and $0000FF00 - Color and $0000FF00; + B := SrcColor and $000000FF - Color and $000000FF; + if R > $FF0000 then + R := 0; + if G > $00FF00 then + G := 0; + if B > $0000FF then + B := 0; + PUInt32( Addr )^ := SrcColor and $FF000000 or R or G or B; + inc( UInt32( Addr ), BPP ); + end; + inc( UInt32( Addr ), ModX ); + end; + end; + 32 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $00FF0000 - Color and $00FF0000; + G := SrcColor and $0000FF00 - Color and $0000FF00; + B := SrcColor and $000000FF - Color and $000000FF; + if R > $FF0000 then + R := 0; + if G > $00FF00 then + G := 0; + if B > $0000FF then + B := 0; + PUInt32( Addr )^ := R or G or B; + inc( UInt32( Addr ), BPP ); + end; + inc( UInt32( Addr ), ModX ); + end; + end; + end; + SDL_UnlockSurface( DstSurface ); + end; +end; + +procedure SDL_GradientFillRect( DstSurface : PSDL_Surface; const Rect : PSDL_Rect; const StartColor, EndColor : TSDL_Color; const Style : TGradientStyle ); +var + FBC : array[ 0..255 ] of Cardinal; + // temp vars + i, YR, YG, YB, SR, SG, SB, DR, DG, DB : Integer; + + TempStepV, TempStepH : Single; + TempLeft, TempTop, TempHeight, TempWidth : integer; + TempRect : TSDL_Rect; + +begin + // calc FBC + YR := StartColor.r; + YG := StartColor.g; + YB := StartColor.b; + SR := YR; + SG := YG; + SB := YB; + DR := EndColor.r - SR; + DG := EndColor.g - SG; + DB := EndColor.b - SB; + + for i := 0 to 255 do + begin + FBC[ i ] := SDL_MapRGB( DstSurface.format, YR, YG, YB ); + YR := SR + round( DR / 255 * i ); + YG := SG + round( DG / 255 * i ); + YB := SB + round( DB / 255 * i ); + end; + + // if aStyle = 1 then begin + TempStepH := Rect.w / 255; + TempStepV := Rect.h / 255; + TempHeight := Trunc( TempStepV + 1 ); + TempWidth := Trunc( TempStepH + 1 ); + TempTop := 0; + TempLeft := 0; + TempRect.x := Rect.x; + TempRect.y := Rect.y; + TempRect.h := Rect.h; + TempRect.w := Rect.w; + + case Style of + gsHorizontal : + begin + TempRect.h := TempHeight; + for i := 0 to 255 do + begin + TempRect.y := Rect.y + TempTop; + SDL_FillRect( DstSurface, @TempRect, FBC[ i ] ); + TempTop := Trunc( TempStepV * i ); + end; + end; + gsVertical : + begin + TempRect.w := TempWidth; + for i := 0 to 255 do + begin + TempRect.x := Rect.x + TempLeft; + SDL_FillRect( DstSurface, @TempRect, FBC[ i ] ); + TempLeft := Trunc( TempStepH * i ); + end; + end; + end; +end; + +procedure SDL_2xBlit( Src, Dest : PSDL_Surface ); +var + ReadAddr, WriteAddr, ReadRow, WriteRow : UInt32; + SrcPitch, DestPitch, x, y, w, h : UInt32; +begin + if ( Src = nil ) or ( Dest = nil ) then + exit; + if ( Src.w shl 1 ) < Dest.w then + exit; + if ( Src.h shl 1 ) < Dest.h then + exit; + + if SDL_MustLock( Src ) then + SDL_LockSurface( Src ); + if SDL_MustLock( Dest ) then + SDL_LockSurface( Dest ); + + ReadRow := UInt32( Src.Pixels ); + WriteRow := UInt32( Dest.Pixels ); + + SrcPitch := Src.pitch; + DestPitch := Dest.pitch; + + w := Src.w; + h := Src.h; + + case Src.format.BytesPerPixel of + 1 : + asm + push ebx + mov eax, h // for y := 1 to Src.h do + mov y, eax + @LoopY: + mov eax, ReadRow // ReadAddr := ReadRow; + mov ReadAddr, eax + + mov eax, WriteRow // WriteAddr := WriteRow; + mov WriteAddr, eax + + mov eax, w // for x := 1 to Src.w do + mov x, eax + + mov ecx, ReadAddr + mov edx, WriteAddr + mov ebx, DestPitch + + @LoopX: + mov al, [ecx] // PUInt8(WriteAddr)^ := PUInt8(ReadAddr)^; + mov [edx], al + mov [edx + 1], al // PUInt8(WriteAddr + 1)^ := PUInt8(ReadAddr)^; + mov [edx + ebx], al // PUInt8(WriteAddr + DestPitch)^ := PUInt8(ReadAddr)^; + mov [edx + ebx + 1], al // PUInt8(WriteAddr + DestPitch + 1)^ := PUInt8(ReadAddr)^; + + inc ecx // inc(ReadAddr); + add edx, 2 // inc(WriteAddr, 2); + + dec x + jnz @LoopX + + mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch); + add ReadRow, eax + + mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2); + add WriteRow, eax + add WriteRow, eax + + dec y + jnz @LoopY + pop ebx + end; + 2 : + asm + push ebx + mov eax, h // for y := 1 to Src.h do + mov y, eax + @LoopY: + mov eax, ReadRow // ReadAddr := ReadRow; + mov ReadAddr, eax + + mov eax, WriteRow // WriteAddr := WriteRow; + mov WriteAddr, eax + + mov eax, w // for x := 1 to Src.w do + mov x, eax + + mov ecx, ReadAddr + mov edx, WriteAddr + mov ebx, DestPitch + + @LoopX: + mov ax, [ecx] // PUInt16(WriteAddr)^ := PUInt16(ReadAddr)^; + mov [edx], ax + mov [edx + 2], ax // PUInt16(WriteAddr + 2)^ := PUInt16(ReadAddr)^; + mov [edx + ebx], ax // PUInt16(WriteAddr + DestPitch)^ := PUInt16(ReadAddr)^; + mov [edx + ebx + 2], ax // PUInt16(WriteAddr + DestPitch + 2)^ := PUInt16(ReadAddr)^; + + add ecx, 2 // inc(ReadAddr, 2); + add edx, 4 // inc(WriteAddr, 4); + + dec x + jnz @LoopX + + mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch); + add ReadRow, eax + + mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2); + add WriteRow, eax + add WriteRow, eax + + dec y + jnz @LoopY + pop ebx + end; + 3 : + asm + push ebx + mov eax, h // for y := 1 to Src.h do + mov y, eax + @LoopY: + mov eax, ReadRow // ReadAddr := ReadRow; + mov ReadAddr, eax + + mov eax, WriteRow // WriteAddr := WriteRow; + mov WriteAddr, eax + + mov eax, w // for x := 1 to Src.w do + mov x, eax + + mov ecx, ReadAddr + mov edx, WriteAddr + mov ebx, DestPitch + + @LoopX: + mov eax, [ecx] // (PUInt32(WriteAddr)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff); + and eax, $00ffffff + and dword ptr [edx], $ff000000 + or [edx], eax + and dword ptr [edx + 3], $00ffffff // (PUInt32(WriteAddr + 3)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff); + or [edx + 3], eax + and dword ptr [edx + ebx], $00ffffff // (PUInt32(WriteAddr + DestPitch)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff); + or [edx + ebx], eax + and dword ptr [edx + ebx + 3], $00ffffff // (PUInt32(WriteAddr + DestPitch + 3)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff); + or [edx + ebx + 3], eax + + add ecx, 3 // inc(ReadAddr, 3); + add edx, 6 // inc(WriteAddr, 6); + + dec x + jnz @LoopX + + mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch); + add ReadRow, eax + + mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2); + add WriteRow, eax + add WriteRow, eax + + dec y + jnz @LoopY + pop ebx + end; + 4 : + asm + push ebx + mov eax, h // for y := 1 to Src.h do + mov y, eax + @LoopY: + mov eax, ReadRow // ReadAddr := ReadRow; + mov ReadAddr, eax + + mov eax, WriteRow // WriteAddr := WriteRow; + mov WriteAddr, eax + + mov eax, w // for x := 1 to Src.w do + mov x, eax + + mov ecx, ReadAddr + mov edx, WriteAddr + mov ebx, DestPitch + + @LoopX: + mov eax, [ecx] // PUInt32(WriteAddr)^ := PUInt32(ReadAddr)^; + mov [edx], eax + mov [edx + 4], eax // PUInt32(WriteAddr + 4)^ := PUInt32(ReadAddr)^; + mov [edx + ebx], eax // PUInt32(WriteAddr + DestPitch)^ := PUInt32(ReadAddr)^; + mov [edx + ebx + 4], eax // PUInt32(WriteAddr + DestPitch + 4)^ := PUInt32(ReadAddr)^; + + add ecx, 4 // inc(ReadAddr, 4); + add edx, 8 // inc(WriteAddr, 8); + + dec x + jnz @LoopX + + mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch); + add ReadRow, eax + + mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2); + add WriteRow, eax + add WriteRow, eax + + dec y + jnz @LoopY + pop ebx + end; + end; + + if SDL_MustLock( Src ) then + SDL_UnlockSurface( Src ); + if SDL_MustLock( Dest ) then + SDL_UnlockSurface( Dest ); +end; + +procedure SDL_Scanline2xBlit( Src, Dest : PSDL_Surface ); +var + ReadAddr, WriteAddr, ReadRow, WriteRow : UInt32; + SrcPitch, DestPitch, x, y, w, h : UInt32; +begin + if ( Src = nil ) or ( Dest = nil ) then + exit; + if ( Src.w shl 1 ) < Dest.w then + exit; + if ( Src.h shl 1 ) < Dest.h then + exit; + + if SDL_MustLock( Src ) then + SDL_LockSurface( Src ); + if SDL_MustLock( Dest ) then + SDL_LockSurface( Dest ); + + ReadRow := UInt32( Src.Pixels ); + WriteRow := UInt32( Dest.Pixels ); + + SrcPitch := Src.pitch; + DestPitch := Dest.pitch; + + w := Src.w; + h := Src.h; + + case Src.format.BytesPerPixel of + 1 : + asm + push ebx + mov eax, h // for y := 1 to Src.h do + mov y, eax + @LoopY: + mov eax, ReadRow // ReadAddr := ReadRow; + mov ReadAddr, eax + + mov eax, WriteRow // WriteAddr := WriteRow; + mov WriteAddr, eax + + mov eax, w // for x := 1 to Src.w do + mov x, eax + + mov ecx, ReadAddr + mov edx, WriteAddr + + @LoopX: + mov al, [ecx] // PUInt8(WriteAddr)^ := PUInt8(ReadAddr)^; + mov [edx], al + mov [edx + 1], al // PUInt8(WriteAddr + 1)^ := PUInt8(ReadAddr)^; + + inc ecx // inc(ReadAddr); + add edx, 2 // inc(WriteAddr, 2); + + dec x + jnz @LoopX + + mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch); + add ReadRow, eax + + mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2); + add WriteRow, eax + add WriteRow, eax + + dec y + jnz @LoopY + pop ebx + end; + 2 : + asm + push ebx + mov eax, h // for y := 1 to Src.h do + mov y, eax + @LoopY: + mov eax, ReadRow // ReadAddr := ReadRow; + mov ReadAddr, eax + + mov eax, WriteRow // WriteAddr := WriteRow; + mov WriteAddr, eax + + mov eax, w // for x := 1 to Src.w do + mov x, eax + + mov ecx, ReadAddr + mov edx, WriteAddr + + @LoopX: + mov ax, [ecx] // PUInt16(WriteAddr)^ := PUInt16(ReadAddr)^; + mov [edx], ax + mov [edx + 2], eax // PUInt16(WriteAddr + 2)^ := PUInt16(ReadAddr)^; + + add ecx, 2 // inc(ReadAddr, 2); + add edx, 4 // inc(WriteAddr, 4); + + dec x + jnz @LoopX + + mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch); + add ReadRow, eax + + mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2); + add WriteRow, eax + add WriteRow, eax + + dec y + jnz @LoopY + pop ebx + end; + 3 : + asm + push ebx + mov eax, h // for y := 1 to Src.h do + mov y, eax + @LoopY: + mov eax, ReadRow // ReadAddr := ReadRow; + mov ReadAddr, eax + + mov eax, WriteRow // WriteAddr := WriteRow; + mov WriteAddr, eax + + mov eax, w // for x := 1 to Src.w do + mov x, eax + + mov ecx, ReadAddr + mov edx, WriteAddr + + @LoopX: + mov eax, [ecx] // (PUInt32(WriteAddr)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff); + and eax, $00ffffff + and dword ptr [edx], $ff000000 + or [edx], eax + and dword ptr [edx + 3], $00ffffff // (PUInt32(WriteAddr + 3)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff); + or [edx + 3], eax + + add ecx, 3 // inc(ReadAddr, 3); + add edx, 6 // inc(WriteAddr, 6); + + dec x + jnz @LoopX + + mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch); + add ReadRow, eax + + mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2); + add WriteRow, eax + add WriteRow, eax + + dec y + jnz @LoopY + pop ebx + end; + 4 : + asm + push ebx + mov eax, h // for y := 1 to Src.h do + mov y, eax + @LoopY: + mov eax, ReadRow // ReadAddr := ReadRow; + mov ReadAddr, eax + + mov eax, WriteRow // WriteAddr := WriteRow; + mov WriteAddr, eax + + mov eax, w // for x := 1 to Src.w do + mov x, eax + + mov ecx, ReadAddr + mov edx, WriteAddr + + @LoopX: + mov eax, [ecx] // PUInt32(WriteAddr)^ := PUInt32(ReadAddr)^; + mov [edx], eax + mov [edx + 4], eax // PUInt32(WriteAddr + 4)^ := PUInt32(ReadAddr)^; + + add ecx, 4 // inc(ReadAddr, 4); + add edx, 8 // inc(WriteAddr, 8); + + dec x + jnz @LoopX + + mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch); + add ReadRow, eax + + mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2); + add WriteRow, eax + add WriteRow, eax + + dec y + jnz @LoopY + pop ebx + end; + end; + + if SDL_MustLock( Src ) then + SDL_UnlockSurface( Src ); + if SDL_MustLock( Dest ) then + SDL_UnlockSurface( Dest ); +end; + +procedure SDL_50Scanline2xBlit( Src, Dest : PSDL_Surface ); +var + ReadAddr, WriteAddr, ReadRow, WriteRow : UInt32; + SrcPitch, DestPitch, x, y, w, h : UInt32; +begin + if ( Src = nil ) or ( Dest = nil ) then + exit; + if ( Src.w shl 1 ) < Dest.w then + exit; + if ( Src.h shl 1 ) < Dest.h then + exit; + + if SDL_MustLock( Src ) then + SDL_LockSurface( Src ); + if SDL_MustLock( Dest ) then + SDL_LockSurface( Dest ); + + ReadRow := UInt32( Src.Pixels ); + WriteRow := UInt32( Dest.Pixels ); + + SrcPitch := Src.pitch; + DestPitch := Dest.pitch; + + w := Src.w; + h := Src.h; + + case Src.format.BitsPerPixel of + 8 : + asm + push ebx + mov eax, h // for y := 1 to Src.h do + mov y, eax + @LoopY: + mov eax, ReadRow // ReadAddr := ReadRow; + mov ReadAddr, eax + + mov eax, WriteRow // WriteAddr := WriteRow; + mov WriteAddr, eax + + mov eax, w // for x := 1 to Src.w do + mov x, eax + + mov ecx, ReadAddr + mov edx, WriteAddr + mov ebx, DestPitch + + @LoopX: + mov al, [ecx] // PUInt8(WriteAddr)^ := PUInt8(ReadAddr)^; + mov [edx], al + mov [edx + 1], al // PUInt8(WriteAddr + 1)^ := PUInt8(ReadAddr)^; + shr al, 1 + and al, $6d + mov [edx + ebx], al // PUInt8(WriteAddr + DestPitch)^ := PUInt8(ReadAddr)^; + mov [edx + ebx + 1], al // PUInt8(WriteAddr + DestPitch + 1)^ := PUInt8(ReadAddr)^; + + inc ecx // inc(ReadAddr); + add edx, 2 // inc(WriteAddr, 2); + + dec x + jnz @LoopX + + mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch); + add ReadRow, eax + + mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2); + add WriteRow, eax + add WriteRow, eax + + dec y + jnz @LoopY + pop ebx + end; + 15 : + asm + push ebx + mov eax, h // for y := 1 to Src.h do + mov y, eax + @LoopY: + mov eax, ReadRow // ReadAddr := ReadRow; + mov ReadAddr, eax + + mov eax, WriteRow // WriteAddr := WriteRow; + mov WriteAddr, eax + + mov eax, w // for x := 1 to Src.w do + mov x, eax + + mov ecx, ReadAddr + mov edx, WriteAddr + mov ebx, DestPitch + + @LoopX: + mov ax, [ecx] // PUInt16(WriteAddr)^ := PUInt16(ReadAddr)^; + mov [edx], ax + mov [edx + 2], ax // PUInt16(WriteAddr + 2)^ := PUInt16(ReadAddr)^; + shr ax, 1 + and ax, $3def + mov [edx + ebx], ax // PUInt16(WriteAddr + DestPitch)^ := PUInt16(ReadAddr)^; + mov [edx + ebx + 2], ax // PUInt16(WriteAddr + DestPitch + 2)^ := PUInt16(ReadAddr)^; + + add ecx, 2 // inc(ReadAddr, 2); + add edx, 4 // inc(WriteAddr, 4); + + dec x + jnz @LoopX + + mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch); + add ReadRow, eax + + mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2); + add WriteRow, eax + add WriteRow, eax + + dec y + jnz @LoopY + pop ebx + end; + 16 : + asm + push ebx + mov eax, h // for y := 1 to Src.h do + mov y, eax + @LoopY: + mov eax, ReadRow // ReadAddr := ReadRow; + mov ReadAddr, eax + + mov eax, WriteRow // WriteAddr := WriteRow; + mov WriteAddr, eax + + mov eax, w // for x := 1 to Src.w do + mov x, eax + + mov ecx, ReadAddr + mov edx, WriteAddr + mov ebx, DestPitch + + @LoopX: + mov ax, [ecx] // PUInt16(WriteAddr)^ := PUInt16(ReadAddr)^; + mov [edx], ax + mov [edx + 2], ax // PUInt16(WriteAddr + 2)^ := PUInt16(ReadAddr)^; + shr ax, 1 + and ax, $7bef + mov [edx + ebx], ax // PUInt16(WriteAddr + DestPitch)^ := PUInt16(ReadAddr)^; + mov [edx + ebx + 2], ax // PUInt16(WriteAddr + DestPitch + 2)^ := PUInt16(ReadAddr)^; + + add ecx, 2 // inc(ReadAddr, 2); + add edx, 4 // inc(WriteAddr, 4); + + dec x + jnz @LoopX + + mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch); + add ReadRow, eax + + mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2); + add WriteRow, eax + add WriteRow, eax + + dec y + jnz @LoopY + pop ebx + end; + 24 : + asm + push ebx + mov eax, h // for y := 1 to Src.h do + mov y, eax + @LoopY: + mov eax, ReadRow // ReadAddr := ReadRow; + mov ReadAddr, eax + + mov eax, WriteRow // WriteAddr := WriteRow; + mov WriteAddr, eax + + mov eax, w // for x := 1 to Src.w do + mov x, eax + + mov ecx, ReadAddr + mov edx, WriteAddr + mov ebx, DestPitch + + @LoopX: + mov eax, [ecx] // (PUInt32(WriteAddr)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff); + and eax, $00ffffff + and dword ptr [edx], $ff000000 + or [edx], eax + and dword ptr [edx + 3], $00ffffff // (PUInt32(WriteAddr + 3)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff); + or [edx + 3], eax + shr eax, 1 + and eax, $007f7f7f + and dword ptr [edx + ebx], $00ffffff // (PUInt32(WriteAddr + DestPitch)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff); + or [edx + ebx], eax + and dword ptr [edx + ebx + 3], $00ffffff // (PUInt32(WriteAddr + DestPitch + 3)^ and $ff000000) or (PUInt32(ReadAddr)^ and $00ffffff); + or [edx + ebx + 3], eax + + add ecx, 3 // inc(ReadAddr, 3); + add edx, 6 // inc(WriteAddr, 6); + + dec x + jnz @LoopX + + mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch); + add ReadRow, eax + + mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2); + add WriteRow, eax + add WriteRow, eax + + dec y + jnz @LoopY + pop ebx + end; + 32 : + asm + push ebx + mov eax, h // for y := 1 to Src.h do + mov y, eax + @LoopY: + mov eax, ReadRow // ReadAddr := ReadRow; + mov ReadAddr, eax + + mov eax, WriteRow // WriteAddr := WriteRow; + mov WriteAddr, eax + + mov eax, w // for x := 1 to Src.w do + mov x, eax + + mov ecx, ReadAddr + mov edx, WriteAddr + mov ebx, DestPitch + + @LoopX: + mov eax, [ecx] // PUInt32(WriteAddr)^ := PUInt32(ReadAddr)^; + mov [edx], eax + mov [edx + 4], eax // PUInt32(WriteAddr + 4)^ := PUInt32(ReadAddr)^; + shr eax, 1 + and eax, $7f7f7f7f + mov [edx + ebx], eax // PUInt32(WriteAddr + DestPitch)^ := PUInt32(ReadAddr)^; + mov [edx + ebx + 4], eax // PUInt32(WriteAddr + DestPitch + 4)^ := PUInt32(ReadAddr)^; + + add ecx, 4 // inc(ReadAddr, 4); + add edx, 8 // inc(WriteAddr, 8); + + dec x + jnz @LoopX + + mov eax, SrcPitch // inc(UInt32(ReadRow), SrcPitch); + add ReadRow, eax + + mov eax, DestPitch // inc(UInt32(WriteRow), DestPitch * 2); + add WriteRow, eax + add WriteRow, eax + + dec y + jnz @LoopY + pop ebx + end; + end; + + if SDL_MustLock( Src ) then + SDL_UnlockSurface( Src ); + if SDL_MustLock( Dest ) then + SDL_UnlockSurface( Dest ); +end; + +function SDL_PixelTestSurfaceVsRect( SrcSurface1 : PSDL_Surface; SrcRect1 : PSDL_Rect; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) : +boolean; +var + Src_Rect1, Src_Rect2 : TSDL_Rect; + right1, bottom1 : integer; + right2, bottom2 : integer; + Scan1Start, Scan2Start, ScanWidth, ScanHeight : cardinal; + Mod1: cardinal; + Addr1 : cardinal; + BPP : cardinal; + Pitch1 : cardinal; + TransparentColor1 : cardinal; + tx, ty : cardinal; + StartTick : cardinal; + Color1 : cardinal; +begin + Result := false; + if SrcRect1 = nil then + begin + with Src_Rect1 do + begin + x := 0; + y := 0; + w := SrcSurface1.w; + h := SrcSurface1.h; + end; + end + else + Src_Rect1 := SrcRect1^; + + Src_Rect2 := SrcRect2^; + with Src_Rect1 do + begin + Right1 := Left1 + w; + Bottom1 := Top1 + h; + end; + with Src_Rect2 do + begin + Right2 := Left2 + w; + Bottom2 := Top2 + h; + end; + if ( Left1 >= Right2 ) or ( Right1 <= Left2 ) or ( Top1 >= Bottom2 ) or ( +Bottom1 <= + Top2 ) then + exit; + if Left1 <= Left2 then + begin + // 1. left, 2. right + Scan1Start := Src_Rect1.x + Left2 - Left1; + Scan2Start := Src_Rect2.x; + ScanWidth := Right1 - Left2; + with Src_Rect2 do + if ScanWidth > w then + ScanWidth := w; + end + else + begin + // 1. right, 2. left + Scan1Start := Src_Rect1.x; + Scan2Start := Src_Rect2.x + Left1 - Left2; + ScanWidth := Right2 - Left1; + with Src_Rect1 do + if ScanWidth > w then + ScanWidth := w; + end; + with SrcSurface1^ do + begin + Pitch1 := Pitch; + Addr1 := cardinal( Pixels ); + inc( Addr1, Pitch1 * UInt32( Src_Rect1.y ) ); + with format^ do + begin + BPP := BytesPerPixel; + TransparentColor1 := colorkey; + end; + end; + + Mod1 := Pitch1 - ( ScanWidth * BPP ); + + inc( Addr1, BPP * Scan1Start ); + + if Top1 <= Top2 then + begin + // 1. up, 2. down + ScanHeight := Bottom1 - Top2; + if ScanHeight > Src_Rect2.h then + ScanHeight := Src_Rect2.h; + inc( Addr1, Pitch1 * UInt32( Top2 - Top1 ) ); + end + else + begin + // 1. down, 2. up + ScanHeight := Bottom2 - Top1; + if ScanHeight > Src_Rect1.h then + ScanHeight := Src_Rect1.h; + + end; + case BPP of + 1 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + if ( PByte( Addr1 )^ <> TransparentColor1 ) then + begin + Result := true; + exit; + end; + inc( Addr1 ); + + end; + inc( Addr1, Mod1 ); + + end; + 2 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + if ( PWord( Addr1 )^ <> TransparentColor1 ) then + begin + Result := true; + exit; + end; + inc( Addr1, 2 ); + + end; + inc( Addr1, Mod1 ); + + end; + 3 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + Color1 := PLongWord( Addr1 )^ and $00FFFFFF; + + if ( Color1 <> TransparentColor1 ) + then + begin + Result := true; + exit; + end; + inc( Addr1, 3 ); + + end; + inc( Addr1, Mod1 ); + + end; + 4 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + if ( PLongWord( Addr1 )^ <> TransparentColor1 ) then + begin + Result := true; + exit; + end; + inc( Addr1, 4 ); + + end; + inc( Addr1, Mod1 ); + + end; + end; +end; + +procedure SDL_ORSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); +var + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr, TransparentColor : cardinal; + // TransparentColor: cardinal; + _ebx, _esi, _edi, _esp : cardinal; + WorkX, WorkY : word; + SrcMod, DestMod : cardinal; + Bits : cardinal; +begin + if ( SrcSurface = nil ) or ( DestSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DestSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + TransparentColor := Format.colorkey; + end; + with DestSurface^ do + begin + DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + Bits := Format.BitsPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DestSurface ); + WorkY := Src.h; + case bits of + 8 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov al, [esi] // AL := source color + cmp al, 0 + je @SkipColor // if AL=0 or AL=transparent color then skip everything + cmp al, byte ptr TransparentColor + je @SkipColor + or al, [edi] + mov [edi], al + @SkipColor: + inc esi + inc edi + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 15 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov ax, [esi] // AX := source color + cmp ax, 0 + je @SkipColor // if AX=0 then skip everything + cmp ax, word ptr TransparentColor + je @SkipColor + or ax, [edi] + mov [edi], ax + @SkipColor: + add esi, 2 + add edi, 2 + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 16 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov ax, [esi] // AX := source color + cmp ax, 0 + je @SkipColor // if AX=0 then skip everything + cmp ax, word ptr TransparentColor + je @SkipColor + or ax, [edi] + mov [edi], ax + @SkipColor: + add esi, 2 + add edi, 2 + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 24 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + add WorkX, ax // WorkX := Src.w * 2 + add WorkX, ax // WorkX := Src.w * 3 + @Loopx: + mov al, [esi] // AL := source color + or al, [edi] + mov [edi], al + inc esi + inc edi + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 32 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + shl ax, 2 + mov WorkX, ax // WorkX := Src.w * 4 + @Loopx: + mov al, [esi] // AL := source color + or al, [edi] + mov [edi], al + inc esi + inc edi + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DestSurface ); +end; + +procedure SDL_ANDSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); +var + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr, TransparentColor : cardinal; + // TransparentColor: cardinal; + _ebx, _esi, _edi, _esp : cardinal; + WorkX, WorkY : word; + SrcMod, DestMod : cardinal; + Bits : cardinal; +begin + if ( SrcSurface = nil ) or ( DestSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DestSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + TransparentColor := Format.colorkey; + end; + with DestSurface^ do + begin + DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + Bits := Format.BitsPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DestSurface ); + WorkY := Src.h; + case bits of + 8 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov al, [esi] // AL := source color + cmp al, 0 + je @SkipColor // if AL=0 or AL=transparent color then skip everything + cmp al, byte ptr TransparentColor + je @SkipColor + and al, [edi] + mov [edi], al + @SkipColor: + inc esi + inc edi + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 15 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov ax, [esi] // AX := source color + cmp ax, 0 + je @SkipColor // if AX=0 then skip everything + cmp ax, word ptr TransparentColor + je @SkipColor + and ax, [edi] + mov [edi], ax + @SkipColor: + add esi, 2 + add edi, 2 + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 16 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + @Loopx: + mov ax, [esi] // AX := source color + cmp ax, 0 + je @SkipColor // if AX=0 then skip everything + cmp ax, word ptr TransparentColor + je @SkipColor + and ax, [edi] + mov [edi], ax + @SkipColor: + add esi, 2 + add edi, 2 + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 24 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + mov WorkX, ax // WorkX := Src.w + add WorkX, ax // WorkX := Src.w * 2 + add WorkX, ax // WorkX := Src.w * 3 + @Loopx: + mov al, [esi] // AL := source color + and al, [edi] + mov [edi], al + inc esi + inc edi + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + 32 : + asm + mov _ebx, ebx + mov _esi, esi + mov _edi, edi + mov _esp, esp + mov esi, SrcAddr // ESI - Source Offset + mov edi, DestAddr // EDI - Destination Offset + mov ax, Src.h // WorkY := Src.h + mov WorkY, ax + @LoopY: + mov ax, Src.w + shl ax, 2 + mov WorkX, ax // WorkX := Src.w * 4 + @Loopx: + mov al, [esi] // AL := source color + and al, [edi] + mov [edi], al + inc esi + inc edi + dec WorkX + jnz @LoopX + add esi, SrcMod + add edi, DestMod + dec WorkY + jnz @LoopY + mov esp,_esp + mov edi,_edi + mov esi,_esi + mov ebx,_ebx + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DestSurface ); +end; + + +procedure SDL_GTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); +var + R, G, B, Pixel1, Pixel2, TransparentColor : cardinal; + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr : cardinal; + WorkX, WorkY : word; + SrcMod, DestMod : cardinal; + Bits : cardinal; +begin + if ( SrcSurface = nil ) or ( DestSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DestSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + TransparentColor := Format.colorkey; + end; + with DestSurface^ do + begin + DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + Bits := Format.BitsPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DestSurface ); + WorkY := Src.h; + case bits of + 8 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt8( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt8( DestAddr )^; + if Pixel2 > 0 then + begin + if Pixel2 and $E0 > Pixel1 and $E0 then R := Pixel2 and $E0 else R := Pixel1 and $E0; + if Pixel2 and $1C > Pixel1 and $1C then G := Pixel2 and $1C else G := Pixel1 and $1C; + if Pixel2 and $03 > Pixel1 and $03 then B := Pixel2 and $03 else B := Pixel1 and $03; + + if R > $E0 then + R := $E0; + if G > $1C then + G := $1C; + if B > $03 then + B := $03; + PUInt8( DestAddr )^ := R or G or B; + end + else + PUInt8( DestAddr )^ := Pixel1; + end; + inc( SrcAddr ); + inc( DestAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 15 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + if Pixel2 > 0 then + begin + + if Pixel2 and $7C00 > Pixel1 and $7C00 then R := Pixel2 and $7C00 else R := Pixel1 and $7C00; + if Pixel2 and $03E0 > Pixel1 and $03E0 then G := Pixel2 and $03E0 else G := Pixel1 and $03E0; + if Pixel2 and $001F > Pixel1 and $001F then B := Pixel2 and $001F else B := Pixel1 and $001F; + + PUInt16( DestAddr )^ := R or G or B; + end + else + PUInt16( DestAddr )^ := Pixel1; + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 16 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + if Pixel2 > 0 then + begin + + if Pixel2 and $F800 > Pixel1 and $F800 then R := Pixel2 and $F800 else R := Pixel1 and $F800; + if Pixel2 and $07E0 > Pixel1 and $07E0 then G := Pixel2 and $07E0 else G := Pixel1 and $07E0; + if Pixel2 and $001F > Pixel1 and $001F then B := Pixel2 and $001F else B := Pixel1 and $001F; + + PUInt16( DestAddr )^ := R or G or B; + end + else + PUInt16( DestAddr )^ := Pixel1; + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 24 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF; + if Pixel2 > 0 then + begin + + if Pixel2 and $FF0000 > Pixel1 and $FF0000 then R := Pixel2 and $FF0000 else R := Pixel1 and $FF0000; + if Pixel2 and $00FF00 > Pixel1 and $00FF00 then G := Pixel2 and $00FF00 else G := Pixel1 and $00FF00; + if Pixel2 and $0000FF > Pixel1 and $0000FF then B := Pixel2 and $0000FF else B := Pixel1 and $0000FF; + + PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or ( R or G or B ); + end + else + PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or Pixel1; + end; + inc( SrcAddr, 3 ); + inc( DestAddr, 3 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 32 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^; + if Pixel2 > 0 then + begin + + if Pixel2 and $FF0000 > Pixel1 and $FF0000 then R := Pixel2 and $FF0000 else R := Pixel1 and $FF0000; + if Pixel2 and $00FF00 > Pixel1 and $00FF00 then G := Pixel2 and $00FF00 else G := Pixel1 and $00FF00; + if Pixel2 and $0000FF > Pixel1 and $0000FF then B := Pixel2 and $0000FF else B := Pixel1 and $0000FF; + + PUInt32( DestAddr )^ := R or G or B; + end + else + PUInt32( DestAddr )^ := Pixel1; + end; + inc( SrcAddr, 4 ); + inc( DestAddr, 4 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DestSurface ); +end; + + +procedure SDL_LTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); +var + R, G, B, Pixel1, Pixel2, TransparentColor : cardinal; + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr : cardinal; + WorkX, WorkY : word; + SrcMod, DestMod : cardinal; + Bits : cardinal; +begin + if ( SrcSurface = nil ) or ( DestSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DestSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := cardinal( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + TransparentColor := Format.colorkey; + end; + with DestSurface^ do + begin + DestAddr := cardinal( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + Bits := Format.BitsPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DestSurface ); + WorkY := Src.h; + case bits of + 8 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt8( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt8( DestAddr )^; + if Pixel2 > 0 then + begin + if Pixel2 and $E0 < Pixel1 and $E0 then R := Pixel2 and $E0 else R := Pixel1 and $E0; + if Pixel2 and $1C < Pixel1 and $1C then G := Pixel2 and $1C else G := Pixel1 and $1C; + if Pixel2 and $03 < Pixel1 and $03 then B := Pixel2 and $03 else B := Pixel1 and $03; + + if R > $E0 then + R := $E0; + if G > $1C then + G := $1C; + if B > $03 then + B := $03; + PUInt8( DestAddr )^ := R or G or B; + end + else + PUInt8( DestAddr )^ := Pixel1; + end; + inc( SrcAddr ); + inc( DestAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 15 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + if Pixel2 > 0 then + begin + + if Pixel2 and $7C00 < Pixel1 and $7C00 then R := Pixel2 and $7C00 else R := Pixel1 and $7C00; + if Pixel2 and $03E0 < Pixel1 and $03E0 then G := Pixel2 and $03E0 else G := Pixel1 and $03E0; + if Pixel2 and $001F < Pixel1 and $001F then B := Pixel2 and $001F else B := Pixel1 and $001F; + + PUInt16( DestAddr )^ := R or G or B; + end + else + PUInt16( DestAddr )^ := Pixel1; + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 16 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + if Pixel2 > 0 then + begin + + if Pixel2 and $F800 < Pixel1 and $F800 then R := Pixel2 and $F800 else R := Pixel1 and $F800; + if Pixel2 and $07E0 < Pixel1 and $07E0 then G := Pixel2 and $07E0 else G := Pixel1 and $07E0; + if Pixel2 and $001F < Pixel1 and $001F then B := Pixel2 and $001F else B := Pixel1 and $001F; + + PUInt16( DestAddr )^ := R or G or B; + end + else + PUInt16( DestAddr )^ := Pixel1; + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 24 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF; + if Pixel2 > 0 then + begin + + if Pixel2 and $FF0000 < Pixel1 and $FF0000 then R := Pixel2 and $FF0000 else R := Pixel1 and $FF0000; + if Pixel2 and $00FF00 < Pixel1 and $00FF00 then G := Pixel2 and $00FF00 else G := Pixel1 and $00FF00; + if Pixel2 and $0000FF < Pixel1 and $0000FF then B := Pixel2 and $0000FF else B := Pixel1 and $0000FF; + + PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or ( R or G or B ); + end + else + PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or Pixel1; + end; + inc( SrcAddr, 3 ); + inc( DestAddr, 3 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 32 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^; + if Pixel2 > 0 then + begin + + if Pixel2 and $FF0000 < Pixel1 and $FF0000 then R := Pixel2 and $FF0000 else R := Pixel1 and $FF0000; + if Pixel2 and $00FF00 < Pixel1 and $00FF00 then G := Pixel2 and $00FF00 else G := Pixel1 and $00FF00; + if Pixel2 and $0000FF < Pixel1 and $0000FF then B := Pixel2 and $0000FF else B := Pixel1 and $0000FF; + + PUInt32( DestAddr )^ := R or G or B; + end + else + PUInt32( DestAddr )^ := Pixel1; + end; + inc( SrcAddr, 4 ); + inc( DestAddr, 4 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DestSurface ); +end; + +function SDL_ClipLine(var x1,y1,x2,y2: Integer; ClipRect: PSDL_Rect) : boolean; +var tflag, flag1, flag2: word; + txy, xedge, yedge: Integer; + slope: single; + + function ClipCode(x,y: Integer): word; + begin + Result := 0; + if x < ClipRect.x then Result := 1; + if x >= ClipRect.w + ClipRect.x then Result := Result or 2; + if y < ClipRect.y then Result := Result or 4; + if y >= ClipRect.h + ClipRect.y then Result := Result or 8; + end; + +begin + flag1 := ClipCode(x1,y1); + flag2 := ClipCode(x2,y2); + result := true; + + while true do + begin + if (flag1 or flag2) = 0 then Exit; // all in + + if (flag1 and flag2) <> 0 then + begin + result := false; + Exit; // all out + end; + + if flag2 = 0 then + begin + txy := x1; x1 := x2; x2 := txy; + txy := y1; y1 := y2; y2 := txy; + tflag := flag1; flag1 := flag2; flag2 := tflag; + end; + + if (flag2 and 3) <> 0 then + begin + if (flag2 and 1) <> 0 then + xedge := ClipRect.x + else + xedge := ClipRect.w + ClipRect.x -1; // back 1 pixel otherwise we end up in a loop + + slope := (y2 - y1) / (x2 - x1); + y2 := y1 + Round(slope * (xedge - x1)); + x2 := xedge; + end + else + begin + if (flag2 and 4) <> 0 then + yedge := ClipRect.y + else + yedge := ClipRect.h + ClipRect.y -1; // up 1 pixel otherwise we end up in a loop + + slope := (x2 - x1) / (y2 - y1); + x2 := x1 + Round(slope * (yedge - y1)); + y2 := yedge; + end; + + flag2 := ClipCode(x2, y2); + end; +end; + +end. + + diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlinput.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlinput.pas index e1b2347e..094f4e0f 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlinput.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlinput.pas @@ -1,923 +1,923 @@ -unit sdlinput;
-{
- $Id: sdlinput.pas,v 1.9 2007/08/22 21:18:43 savage Exp $
-
-}
-{******************************************************************************}
-{ }
-{ JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer }
-{ SDL Input Wrapper }
-{ }
-{ }
-{ The initial developer of this Pascal code was : }
-{ Dominique Louis <Dominique@SavageSoftware.com.au> }
-{ }
-{ Portions created by Dominique Louis are }
-{ Copyright (C) 2003 - 2100 Dominique Louis. }
-{ }
-{ }
-{ Contributor(s) }
-{ -------------- }
-{ Dominique Louis <Dominique@SavageSoftware.com.au> }
-{ }
-{ Obtained through: }
-{ Joint Endeavour of Delphi Innovators ( Project JEDI ) }
-{ }
-{ You may retrieve the latest version of this file at the Project }
-{ JEDI home page, located at http://delphi-jedi.org }
-{ }
-{ The contents of this file are used with permission, subject to }
-{ the Mozilla Public License Version 1.1 (the "License"); you may }
-{ not use this file except in compliance with the License. You may }
-{ obtain a copy of the License at }
-{ http://www.mozilla.org/MPL/MPL-1.1.html }
-{ }
-{ Software distributed under the License is distributed on an }
-{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or }
-{ implied. See the License for the specific language governing }
-{ rights and limitations under the License. }
-{ }
-{ Description }
-{ ----------- }
-{ SDL Mouse, Keyboard and Joystick wrapper }
-{ }
-{ }
-{ Requires }
-{ -------- }
-{ SDL.dll on Windows platforms }
-{ libSDL-1.1.so.0 on Linux platform }
-{ }
-{ Programming Notes }
-{ ----------------- }
-{ }
-{ }
-{ }
-{ }
-{ Revision History }
-{ ---------------- }
-{ March 12 2003 - DL : Initial creation }
-{ }
-{ February 02 2004 - DL : Added Custom Cursor Support to the Mouse class }
-{
- $Log: sdlinput.pas,v $
- Revision 1.9 2007/08/22 21:18:43 savage
- Thanks to Dean for his MouseDelta patch.
-
- Revision 1.8 2005/08/03 18:57:32 savage
- Various updates and additions. Mainly to handle OpenGL 3D Window support and better cursor support for the mouse class
-
- Revision 1.7 2004/09/30 22:32:04 savage
- Updated with slightly different header comments
-
- Revision 1.6 2004/09/12 21:52:58 savage
- Slight changes to fix some issues with the sdl classes.
-
- Revision 1.5 2004/05/10 21:11:49 savage
- changes required to help get SoAoS off the ground.
-
- Revision 1.4 2004/05/03 22:38:40 savage
- Added the ability to enable or disable certain inputs @ runtime. Basically it just does not call UpdateInput if Enabled = false.
- Can also disable and enable input devices via the InputManager.
-
- Revision 1.3 2004/04/28 21:27:01 savage
- Updated Joystick code and event handlers. Needs testing...
-
- Revision 1.2 2004/02/14 22:36:29 savage
- Fixed inconsistencies of using LoadLibrary and LoadModule.
- Now all units make use of LoadModule rather than LoadLibrary and other dynamic proc procedures.
-
- Revision 1.1 2004/02/05 00:08:20 savage
- Module 1.0 release
-
-
-}
-{******************************************************************************}
-
-interface
-
-{$i jedi-sdl.inc}
-
-uses
- Classes,
- sdl;
-
-type
- TSDLInputType = ( itJoystick , itKeyBoard, itMouse );
- TSDLInputTypes = set of TSDLInputType;
-
- TSDLCustomInput = class( TObject )
- private
- FEnabled: Boolean;
- public
- constructor Create;
- function UpdateInput( event: TSDL_EVENT ) : Boolean; virtual; abstract;
- property Enabled : Boolean read FEnabled write FEnabled;
- end;
-
- TSDLJoyAxisMoveEvent = procedure ( Which: UInt8; Axis: UInt8; Value: SInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF};
- TSDLJoyBallMoveEvent = procedure ( Which: UInt8; Ball: UInt8; RelativePos: TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF};
- TSDLJoyHatMoveEvent = procedure ( Which: UInt8; Hat: UInt8; Value: SInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF};
- TSDLJoyButtonEvent = procedure ( Which: UInt8; Button: UInt8; State: SInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF};
-
-
- TSDLJoyStick = class( TSDLCustomInput )
- private
- FJoystick : PSDL_Joystick;
- FJoystickIndex : Integer;
- FJoyAxisMoveEvent : TSDLJoyAxisMoveEvent;
- FJoyBallMoveEvent : TSDLJoyBallMoveEvent;
- FJoyHatMoveEvent : TSDLJoyHatMoveEvent;
- FJoyButtonDownEvent : TSDLJoyButtonEvent;
- FJoyButtonUpEvent : TSDLJoyButtonEvent;
- procedure DoAxisMove( Event : TSDL_Event );
- procedure DoBallMove( Event : TSDL_Event );
- procedure DoHatMove( Event : TSDL_Event );
- procedure DoButtonDown( Event : TSDL_Event );
- procedure DoButtonUp( Event : TSDL_Event );
- function GetName: PChar;
- function GetNumAxes: integer;
- function GetNumBalls: integer;
- function GetNumButtons: integer;
- function GetNumHats: integer;
- public
- constructor Create( Index : Integer );
- destructor Destroy; override;
- procedure Open;
- procedure Close;
- function UpdateInput( Event: TSDL_EVENT ) : Boolean; override;
- property Name : PChar read GetName;
- property NumAxes : integer read GetNumAxes;
- property NumBalls : integer read GetNumBalls;
- property NumButtons : integer read GetNumButtons;
- property NumHats : integer read GetNumHats;
- property OnAxisMove : TSDLJoyAxisMoveEvent read FJoyAxisMoveEvent write FJoyAxisMoveEvent;
- property OnBallMove : TSDLJoyBallMoveEvent read FJoyBallMoveEvent write FJoyBallMoveEvent;
- property OnHatMove : TSDLJoyHatMoveEvent read FJoyHatMoveEvent write FJoyHatMoveEvent;
- property OnButtonDown : TSDLJoyButtonEvent read FJoyButtonDownEvent write FJoyButtonDownEvent;
- property OnButtonUp : TSDLJoyButtonEvent read FJoyButtonUpEvent write FJoyButtonUpEvent;
- end;
-
- TSDLJoySticks = class( TObject )
- private
- FNumOfJoySticks: Integer;
- FJoyStickList : TList;
- function GetJoyStick(Index: integer): TSDLJoyStick;
- procedure SetJoyStick(Index: integer; const Value: TSDLJoyStick);
- public
- constructor Create;
- destructor Destroy; override;
- function UpdateInput( event: TSDL_EVENT ) : Boolean;
- property NumOfJoySticks : Integer read FNumOfJoySticks write FNumOfJoySticks;
- property JoySticks[ Index : integer ] : TSDLJoyStick read GetJoyStick write SetJoyStick;
- end;
-
- TSDLKeyBoardEvent = procedure ( var Key: TSDLKey; Shift: TSDLMod; unicode : UInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF};
-
- TSDLKeyBoard = class( TSDLCustomInput )
- private
- FKeys : PKeyStateArr;
- FOnKeyUp: TSDLKeyBoardEvent;
- FOnKeyDown: TSDLKeyBoardEvent;
- procedure DoKeyDown( keysym : PSDL_keysym );
- procedure DoKeyUp( keysym : PSDL_keysym );
- public
- function IsKeyDown( Key : TSDLKey ) : Boolean;
- function IsKeyUp( Key : TSDLKey ) : Boolean;
- function UpdateInput( event: TSDL_EVENT ) : Boolean; override;
- property Keys : PKeyStateArr read FKeys write FKeys;
- property OnKeyDown : TSDLKeyBoardEvent read FOnKeyDown write FOnKeyDown;
- property OnKeyUp : TSDLKeyBoardEvent read FOnKeyUp write FOnKeyUp;
- end;
-
- TSDLMouseButtonEvent = procedure ( Button : Integer; Shift: TSDLMod; MousePos : TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF};
- TSDLMouseMoveEvent = procedure ( Shift: TSDLMod; CurrentPos : TPoint; RelativePos : TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF};
- TSDLMouseWheelEvent = procedure ( WheelDelta : Integer; Shift: TSDLMod; MousePos : TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF};
-
- TSDLCustomCursor = class( TObject )
- private
- FFileName : string;
- FHotPoint: TPoint;
- procedure SetFileName(const aValue: string );
- function ScanForChar( str : string; ch : Char; startPos : Integer; lookFor : Boolean ) : Integer;
- public
- constructor Create( const aFileName : string; aHotPoint: TPoint );
- procedure LoadFromFile( const aFileName : string ); virtual; abstract;
- procedure LoadFromStream( aStream : TStream ); virtual; abstract;
- procedure Show; virtual; abstract;
- property FileName : string read FFileName write SetFileName;
- property HotPoint : TPoint read FHotPoint write FHotPoint;
- end;
-
- TSDLXPMCursor = class( TSDLCustomCursor )
- private
- FCursor : PSDL_Cursor;
- procedure FreeCursor;
- public
- destructor Destroy; override;
- procedure LoadFromFile( const aFileName : string ); override;
- procedure LoadFromStream( aStream : TStream ); override;
- procedure Show; override;
- end;
-
- TSDLCursorList = class( TStringList )
- protected
- function GetObject( aIndex : Integer ): TSDLCustomCursor; reintroduce;
- procedure PutObject( aIndex : Integer; AObject : TSDLCustomCursor); reintroduce;
- public
- constructor Create;
- function AddCursor(const aName : string; aObject : TSDLCustomCursor): Integer; virtual;
- end;
-
- TSDLMouse = class( TSDLCustomInput )
- private
- FDragging : Boolean;
- FMousePos : TPoint;
- FOnMouseUp: TSDLMouseButtonEvent;
- FOnMouseDown: TSDLMouseButtonEvent;
- FOnMouseMove: TSDLMouseMoveEvent;
- FOnMouseWheel: TSDLMouseWheelEvent;
- FCursorList : TSDLCursorList; // Cursor Pointer
- procedure DoMouseMove( Event: TSDL_Event );
- procedure DoMouseDown( Event: TSDL_Event );
- procedure DoMouseUp( Event: TSDL_Event );
- procedure DoMouseWheelScroll( Event: TSDL_Event );
- function GetMousePosition: TPoint;
- procedure SetMousePosition(const Value: TPoint);
- function GetMouseDelta: TPoint;
- public
- destructor Destroy; override;
- function UpdateInput( event: TSDL_EVENT ) : Boolean; override;
- function MouseIsDown( Button : Integer ) : Boolean;
- function MouseIsUp( Button : Integer ) : Boolean;
- procedure ShowCursor;
- procedure HideCursor;
- property OnMouseDown : TSDLMouseButtonEvent read FOnMouseDown write FOnMouseDown;
- property OnMouseUp : TSDLMouseButtonEvent read FOnMouseUp write FOnMouseUp;
- property OnMouseMove : TSDLMouseMoveEvent read FOnMouseMove write FOnMouseMove;
- property OnMouseWheel : TSDLMouseWheelEvent read FOnMouseWheel write FOnMouseWheel;
- property MousePosition : TPoint read GetMousePosition write SetMousePosition;
- property MouseDelta: TPoint read GetMouseDelta;
- property Cursors : TSDLCursorList read FCursorList write FCursorList;
- end;
-
- TSDLInputManager = class( TObject )
- private
- FKeyBoard : TSDLKeyBoard;
- FMouse : TSDLMouse;
- FJoystick : TSDLJoysticks;
- public
- constructor Create( InitInputs : TSDLInputTypes );
- destructor Destroy; override;
- procedure Disable( InitInputs : TSDLInputTypes; JoyStickNumber : Integer = 0 );
- procedure Enable( InitInputs : TSDLInputTypes; JoyStickNumber : Integer = 0 );
- function UpdateInputs( event: TSDL_EVENT ) : Boolean;
- property KeyBoard : TSDLKeyBoard read FKeyBoard write FKeyBoard;
- property Mouse : TSDLMouse read FMouse write FMouse;
- property JoyStick : TSDLJoysticks read FJoyStick write FJoyStick;
- end;
-
-implementation
-
-uses
- SysUtils;
-
-{ TSDLCustomInput }
-constructor TSDLCustomInput.Create;
-begin
- inherited;
- FEnabled := true;
-end;
-
-{ TSDLJoysticks }
-constructor TSDLJoysticks.Create;
-var
- i : integer;
-begin
- inherited;
- if ( SDL_WasInit( SDL_INIT_JOYSTICK ) = 0 ) then
- SDL_InitSubSystem( SDL_INIT_JOYSTICK );
- FNumOfJoySticks := SDL_NumJoysticks;
- FJoyStickList := TList.Create;
- for i := 0 to FNumOfJoySticks - 1 do
- begin
- FJoyStickList.Add( TSDLJoyStick.Create( i ) );
- end;
-end;
-
-destructor TSDLJoysticks.Destroy;
-var
- i : integer;
-begin
- if FJoyStickList.Count > 0 then
- begin
- for i := 0 to FJoyStickList.Count - 1 do
- begin
- TSDLJoyStick( FJoyStickList.Items[i] ).Free;
- end;
- end;
- SDL_QuitSubSystem( SDL_INIT_JOYSTICK );
- inherited;
-end;
-
-function TSDLJoySticks.GetJoyStick(Index: integer): TSDLJoyStick;
-begin
- Result := TSDLJoyStick( FJoyStickList[ Index ] );
-end;
-
-procedure TSDLJoySticks.SetJoyStick(Index: integer;
- const Value: TSDLJoyStick);
-begin
- FJoyStickList[ Index ] := @Value;
-end;
-
-function TSDLJoysticks.UpdateInput(event: TSDL_EVENT): Boolean;
-var
- i : integer;
-begin
- result := false;
- if FJoyStickList.Count > 0 then
- begin
- for i := 0 to FJoyStickList.Count - 1 do
- begin
- TSDLJoyStick( FJoyStickList.Items[i] ).UpdateInput( event );
- end;
- end;
-end;
-
-{ TSDLKeyBoard }
-procedure TSDLKeyBoard.DoKeyDown(keysym: PSDL_keysym);
-begin
- if Assigned( FOnKeyDown ) then
- FOnKeyDown( keysym.sym , keysym.modifier, keysym.unicode );
-end;
-
-procedure TSDLKeyBoard.DoKeyUp(keysym: PSDL_keysym);
-begin
- if Assigned( FOnKeyUp ) then
- FOnKeyUp( keysym.sym , keysym.modifier, keysym.unicode );
-end;
-
-function TSDLKeyBoard.IsKeyDown( Key: TSDLKey ): Boolean;
-begin
- SDL_PumpEvents;
-
- // Populate Keys array
- FKeys := PKeyStateArr( SDL_GetKeyState( nil ) );
- Result := ( FKeys[Key] = SDL_PRESSED );
-end;
-
-function TSDLKeyBoard.IsKeyUp( Key: TSDLKey ): Boolean;
-begin
- SDL_PumpEvents;
-
- // Populate Keys array
- FKeys := PKeyStateArr( SDL_GetKeyState( nil ) );
- Result := ( FKeys[Key] = SDL_RELEASED );
-end;
-
-function TSDLKeyBoard.UpdateInput(event: TSDL_EVENT): Boolean;
-begin
- result := false;
- if ( FEnabled ) then
- begin
- case event.type_ of
- SDL_KEYDOWN :
- begin
- // handle key presses
- DoKeyDown( @event.key.keysym );
- result := true;
- end;
-
- SDL_KEYUP :
- begin
- // handle key releases
- DoKeyUp( @event.key.keysym );
- result := true;
- end;
- end;
- end;
-end;
-
-{ TSDLMouse }
-destructor TSDLMouse.Destroy;
-begin
-
- inherited;
-end;
-
-procedure TSDLMouse.DoMouseDown( Event: TSDL_Event );
-var
- CurrentPos : TPoint;
-begin
- FDragging := true;
- if Assigned( FOnMouseDown ) then
- begin
- CurrentPos.x := event.button.x;
- CurrentPos.y := event.button.y;
- FOnMouseDown( event.button.button, SDL_GetModState, CurrentPos );
- end;
-end;
-
-procedure TSDLMouse.DoMouseMove( Event: TSDL_Event );
-var
- CurrentPos, RelativePos : TPoint;
-begin
- if Assigned( FOnMouseMove ) then
- begin
- CurrentPos.x := event.motion.x;
- CurrentPos.y := event.motion.y;
- RelativePos.x := event.motion.xrel;
- RelativePos.y := event.motion.yrel;
- FOnMouseMove( SDL_GetModState, CurrentPos, RelativePos );
- end;
-end;
-
-procedure TSDLMouse.DoMouseUp( event: TSDL_EVENT );
-var
- Point : TPoint;
-begin
- FDragging := false;
- if Assigned( FOnMouseUp ) then
- begin
- Point.x := event.button.x;
- Point.y := event.button.y;
- FOnMouseUp( event.button.button, SDL_GetModState, Point );
- end;
-end;
-
-procedure TSDLMouse.DoMouseWheelScroll( event: TSDL_EVENT );
-var
- Point : TPoint;
-begin
- if Assigned( FOnMouseWheel ) then
- begin
- Point.x := event.button.x;
- Point.y := event.button.y;
- if ( event.button.button = SDL_BUTTON_WHEELUP ) then
- FOnMouseWheel( SDL_BUTTON_WHEELUP, SDL_GetModState, Point )
- else
- FOnMouseWheel( SDL_BUTTON_WHEELDOWN, SDL_GetModState, Point );
- end;
-end;
-
-function TSDLMouse.GetMouseDelta: TPoint;
-begin
- SDL_PumpEvents;
-
- SDL_GetRelativeMouseState( Result.X, Result.Y );
-end;
-
-function TSDLMouse.GetMousePosition: TPoint;
-begin
- SDL_PumpEvents;
-
- SDL_GetMouseState( FMousePos.X, FMousePos.Y );
- Result := FMousePos;
-end;
-
-procedure TSDLMouse.HideCursor;
-begin
- SDL_ShowCursor( SDL_DISABLE );
-end;
-
-function TSDLMouse.MouseIsDown(Button: Integer): Boolean;
-begin
- SDL_PumpEvents;
-
- Result := ( SDL_GetMouseState( FMousePos.X, FMousePos.Y ) and SDL_BUTTON( Button ) = 0 );
-end;
-
-function TSDLMouse.MouseIsUp(Button: Integer): Boolean;
-begin
- SDL_PumpEvents;
-
- Result := not ( SDL_GetMouseState( FMousePos.X, FMousePos.Y ) and SDL_BUTTON( Button ) = 0 );
-end;
-
-procedure TSDLMouse.SetMousePosition(const Value: TPoint);
-begin
- SDL_WarpMouse( Value.x, Value.y );
-end;
-
-procedure TSDLMouse.ShowCursor;
-begin
- SDL_ShowCursor( SDL_ENABLE );
-end;
-
-function TSDLMouse.UpdateInput(event: TSDL_EVENT): Boolean;
-begin
- result := false;
- if ( FEnabled ) then
- begin
- case event.type_ of
- SDL_MOUSEMOTION :
- begin
- // handle Mouse Move
- DoMouseMove( event );
- end;
-
- SDL_MOUSEBUTTONDOWN :
- begin
- // handle Mouse Down
- if ( event.button.button = SDL_BUTTON_WHEELUP )
- or ( event.button.button = SDL_BUTTON_WHEELDOWN ) then
- DoMouseWheelScroll( event )
- else
- DoMouseDown( event );
- end;
-
- SDL_MOUSEBUTTONUP :
- begin
- // handle Mouse Up
- if ( event.button.button = SDL_BUTTON_WHEELUP )
- or ( event.button.button = SDL_BUTTON_WHEELDOWN ) then
- DoMouseWheelScroll( event )
- else
- DoMouseUp( event );
- end;
- end;
- end;
-end;
-
-{ TSDLInputManager }
-constructor TSDLInputManager.Create(InitInputs: TSDLInputTypes);
-begin
- inherited Create;
- if itJoystick in InitInputs then
- FJoystick := TSDLJoysticks.Create;
-
- if itKeyBoard in InitInputs then
- FKeyBoard := TSDLKeyBoard.Create;
-
- if itMouse in InitInputs then
- FMouse := TSDLMouse.Create;
-end;
-
-destructor TSDLInputManager.Destroy;
-begin
- if FJoystick <> nil then
- FreeAndNil( FJoystick );
- if FKeyBoard <> nil then
- FreeAndNil( FKeyBoard );
- if FMouse <> nil then
- FreeAndNil( FMouse );
- inherited;
-end;
-
-procedure TSDLInputManager.Disable( InitInputs : TSDLInputTypes; JoyStickNumber : Integer );
-begin
- if itJoystick in InitInputs then
- FJoystick.JoySticks[ JoyStickNumber ].Enabled := false;
-
- if itKeyBoard in InitInputs then
- FKeyBoard.Enabled := false;
-
- if itMouse in InitInputs then
- FMouse.Enabled := false;
-end;
-
-procedure TSDLInputManager.Enable( InitInputs: TSDLInputTypes; JoyStickNumber: Integer );
-begin
- if itJoystick in InitInputs then
- FJoystick.JoySticks[ JoyStickNumber ].Enabled := true;
-
- if itKeyBoard in InitInputs then
- FKeyBoard.Enabled := true;
-
- if itMouse in InitInputs then
- FMouse.Enabled := true;
-end;
-
-function TSDLInputManager.UpdateInputs( event: TSDL_EVENT ): Boolean;
-begin
- Result := false;
- if ( FJoystick <> nil ) then
- Result := FJoystick.UpdateInput( event );
- if ( FKeyBoard <> nil ) then
- Result := FKeyBoard.UpdateInput( event );
- if ( FMouse <> nil ) then
- Result := FMouse.UpdateInput( event );
-end;
-
-{ TSDLJoyStick }
-procedure TSDLJoyStick.Close;
-begin
- SDL_JoystickClose( @FJoystick );
-end;
-
-constructor TSDLJoyStick.Create( Index : Integer );
-begin
- inherited Create;
- FJoystick := nil;
- FJoystickIndex := Index;
-end;
-
-destructor TSDLJoyStick.Destroy;
-begin
- if FJoystick <> nil then
- Close;
- inherited;
-end;
-
-procedure TSDLJoyStick.DoAxisMove(Event: TSDL_Event);
-begin
- if Assigned( FJoyAxisMoveEvent ) then
- begin
- FJoyAxisMoveEvent( Event.jaxis.which, Event.jaxis.axis, Event.jaxis.value );
- end
-end;
-
-procedure TSDLJoyStick.DoBallMove(Event: TSDL_Event);
-var
- BallPoint : TPoint;
-begin
- if Assigned( FJoyBallMoveEvent ) then
- begin
- BallPoint.x := Event.jball.xrel;
- BallPoint.y := Event.jball.yrel;
- FJoyBallMoveEvent( Event.jball.which, Event.jball.ball, BallPoint );
- end;
-end;
-
-procedure TSDLJoyStick.DoButtonDown(Event: TSDL_Event);
-begin
- if Assigned( FJoyButtonDownEvent ) then
- begin
- if ( Event.jbutton.state = SDL_PRESSED ) then
- FJoyButtonDownEvent( Event.jbutton.which, Event.jbutton.button, Event.jbutton.state );
- end;
-end;
-
-procedure TSDLJoyStick.DoButtonUp(Event: TSDL_Event);
-begin
- if Assigned( FJoyButtonUpEvent ) then
- begin
- if ( Event.jbutton.state = SDL_RELEASED ) then
- FJoyButtonUpEvent( Event.jbutton.which, Event.jbutton.button, Event.jbutton.state );
- end
-end;
-
-procedure TSDLJoyStick.DoHatMove(Event: TSDL_Event);
-begin
- if Assigned( FJoyHatMoveEvent ) then
- begin
- FJoyHatMoveEvent( Event.jhat.which, Event.jhat.hat, Event.jhat.value );
- end;
-end;
-
-function TSDLJoyStick.GetName: PChar;
-begin
- result := FJoystick.name;
-end;
-
-function TSDLJoyStick.GetNumAxes: integer;
-begin
- result := FJoystick.naxes;
-end;
-
-function TSDLJoyStick.GetNumBalls: integer;
-begin
- result := FJoystick.nballs;
-end;
-
-function TSDLJoyStick.GetNumButtons: integer;
-begin
- result := FJoystick.nbuttons;
-end;
-
-function TSDLJoyStick.GetNumHats: integer;
-begin
- result := FJoystick.nhats;
-end;
-
-procedure TSDLJoyStick.Open;
-begin
- FJoystick := SDL_JoyStickOpen( FJoystickIndex );
-end;
-
-function TSDLJoyStick.UpdateInput(Event: TSDL_EVENT): Boolean;
-begin
- Result := false;
-
- if ( FEnabled ) then
- begin
- case event.type_ of
- SDL_JOYAXISMOTION :
- begin
- DoAxisMove( Event );
- end;
-
- SDL_JOYBALLMOTION :
- begin
- DoBallMove( Event );
- end;
-
- SDL_JOYHATMOTION :
- begin
- DoHatMove( Event );
- end;
-
- SDL_JOYBUTTONDOWN :
- begin
- DoButtonDown( Event );
- end;
-
- SDL_JOYBUTTONUP :
- begin
- DoButtonUp( Event );
- end;
- end;
- end;
-end;
-
-{ TSDLCustomCursor }
-
-constructor TSDLCustomCursor.Create(const aFileName: string; aHotPoint: TPoint);
-begin
- inherited Create;
- FHotPoint := aHotPoint;
- LoadFromFile( aFileName );
-end;
-
-function TSDLCustomCursor.ScanForChar(str: string; ch: Char;
- startPos: Integer; lookFor: Boolean): Integer;
-begin
- Result := -1;
- while ( ( ( str[ startPos ] = ch ) <> lookFor ) and ( startPos < Length( str ) ) ) do
- inc( startPos );
- if startPos <> Length( str ) then
- Result := startPos;
-end;
-
-procedure TSDLCustomCursor.SetFileName(const aValue: string);
-begin
- LoadFromFile( aValue );
-end;
-
-{ TSDLXPMCursor }
-
-destructor TSDLXPMCursor.Destroy;
-begin
- FreeCursor;
- inherited;
-end;
-
-procedure TSDLXPMCursor.FreeCursor;
-begin
- if FCursor <> nil then
- begin
- SDL_FreeCursor( FCursor );
- FFileName := '';
- end;
-end;
-
-procedure TSDLXPMCursor.LoadFromFile(const aFileName: string);
-var
- xpmFile : Textfile;
- step : Integer;
- holdPos : Integer;
- counter : Integer;
- dimensions : array[ 1..3 ] of Integer;
- clr, clrNone, clrBlack, clrWhite : Char;
- data, mask : array of UInt8;
- i, col : Integer;
- LineString : string;
-begin
- FreeCursor;
- AssignFile( xpmFile, aFileName );
- Reset( xpmFile );
- step := 0;
- i := -1;
- clrBlack := 'X';
- clrWhite := ',';
- clrNone := ' ';
- counter := 0;
- while not ( eof( xpmFile ) ) do
- begin
- Readln( xpmFile, LineString );
- // scan for strings
- if LineString[ 1 ] = '"' then
- begin
- case step of
- 0 : // Get dimensions (should be width height number-of-colors ???)
- begin
- HoldPos := 2;
- counter := ScanForChar( LineString, ' ', HoldPos, False );
- counter := ScanForChar( LineString, ' ', counter, True );
- dimensions[ 1 ] := StrToInt( Copy( LineString, HoldPos, counter - HoldPos ) );
- counter := ScanForChar( LineString, ' ', counter, False );
- holdPos := counter;
- counter := ScanForChar( LineString, ' ', counter, True );
- dimensions[ 2 ] := StrToInt( Copy( LineString, holdPos, counter - HoldPos ) );
- counter := ScanForChar( LineString, ' ', counter, False );
- holdPos := counter;
- counter := ScanForChar( LineString, ' ', counter, True );
- dimensions[ 3 ] := StrToInt( Copy( LineString, holdPos, counter - HoldPos ) );
- step := 1;
- SetLength( data, ( dimensions[ 1 ] * dimensions[ 2 ] ) div 8 );
- SetLength( mask, ( dimensions[ 1 ] * dimensions[ 2 ] ) div 8 );
- //Log.LogStatus( 'Length = ' + IntToStr( ( dimensions[ 1 ] * dimensions[ 2 ] ) div 8 ), 'LoadCursorFromFile' );
- end;
- 1 : // get the symbols for transparent, black and white
- begin
- // get the symbol for the color
- clr := LineString[ 2 ];
- // look for the 'c' symbol
- counter := ScanForChar( LineString, 'c', 3, True );
- inc( counter );
- counter := ScanForChar( LineString, ' ', counter, False );
- if LowerCase( Copy( LineString, counter, 4 ) ) = 'none' then
- begin
- clrNone := clr;
- end;
- if LowerCase( Copy( LineString, counter, 7 ) ) = '#ffffff' then
- begin
- clrWhite := clr;
- end;
- if LowerCase( Copy( LineString, counter, 7 ) ) = '#000000' then
- begin
- clrBlack := clr;
- end;
- dec( dimensions[ 3 ] );
- if dimensions[ 3 ] = 0 then
- begin
- step := 2;
- counter := 0;
- end;
- end;
- 2 : // get cursor information -- modified from the SDL
- // documentation of SDL_CreateCursor.
- begin
- for col := 1 to dimensions[1] do
- begin
- if ( ( col mod 8 ) <> 1 ) then
- begin
- data[ i ] := data[ i ] shl 1;
- mask[ i ] := mask[ i ] shl 1;
- end
- else
- begin
- inc( i );
- data[ i ] := 0;
- mask[ i ] := 0;
- end;
- if LineString[ col ] = clrWhite then
- begin
- mask[ i ] := mask[ i ] or $01;
- end
- else if LineString[ col ] = clrBlack then
- begin
- data[ i ] := data[ i ] or $01;
- mask[ i ] := mask[ i ] or $01;
- end
- else if LineString[ col + 1 ] = clrNone then
- begin
- //
- end;
- end;
- inc(counter);
- if counter = dimensions[2] then
- step := 4;
- end;
- end;
- end;
- end;
- CloseFile( xpmFile );
- FCursor := SDL_CreateCursor( PUInt8( data ), PUInt8( mask ), dimensions[ 1 ], dimensions[ 2 ], FHotPoint.x, FHotPoint.y );
-end;
-
-procedure TSDLXPMCursor.LoadFromStream(aStream: TStream);
-begin
- inherited;
-
-end;
-
-procedure TSDLXPMCursor.Show;
-begin
- inherited;
- SDL_SetCursor( FCursor );
-end;
-
-{ TSDLCursorList }
-function TSDLCursorList.AddCursor(const aName : string; aObject : TSDLCustomCursor): Integer;
-begin
- result := inherited AddObject( aName, aObject );
-end;
-
-constructor TSDLCursorList.Create;
-begin
- inherited;
- Duplicates := dupIgnore;
-end;
-
-function TSDLCursorList.GetObject(aIndex: Integer): TSDLCustomCursor;
-begin
- result := TSDLCustomCursor( inherited GetObject( aIndex ) );
-end;
-
-procedure TSDLCursorList.PutObject(aIndex: Integer; aObject: TSDLCustomCursor);
-begin
- inherited PutObject( aIndex, aObject );
-end;
-
-end.
+unit sdlinput; +{ + $Id: sdlinput.pas,v 1.9 2007/08/22 21:18:43 savage Exp $ + +} +{******************************************************************************} +{ } +{ JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer } +{ SDL Input Wrapper } +{ } +{ } +{ The initial developer of this Pascal code was : } +{ Dominique Louis <Dominique@SavageSoftware.com.au> } +{ } +{ Portions created by Dominique Louis are } +{ Copyright (C) 2003 - 2100 Dominique Louis. } +{ } +{ } +{ Contributor(s) } +{ -------------- } +{ Dominique Louis <Dominique@SavageSoftware.com.au> } +{ } +{ Obtained through: } +{ Joint Endeavour of Delphi Innovators ( Project JEDI ) } +{ } +{ You may retrieve the latest version of this file at the Project } +{ JEDI home page, located at http://delphi-jedi.org } +{ } +{ The contents of this file are used with permission, subject to } +{ the Mozilla Public License Version 1.1 (the "License"); you may } +{ not use this file except in compliance with the License. You may } +{ obtain a copy of the License at } +{ http://www.mozilla.org/MPL/MPL-1.1.html } +{ } +{ Software distributed under the License is distributed on an } +{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } +{ implied. See the License for the specific language governing } +{ rights and limitations under the License. } +{ } +{ Description } +{ ----------- } +{ SDL Mouse, Keyboard and Joystick wrapper } +{ } +{ } +{ Requires } +{ -------- } +{ SDL.dll on Windows platforms } +{ libSDL-1.1.so.0 on Linux platform } +{ } +{ Programming Notes } +{ ----------------- } +{ } +{ } +{ } +{ } +{ Revision History } +{ ---------------- } +{ March 12 2003 - DL : Initial creation } +{ } +{ February 02 2004 - DL : Added Custom Cursor Support to the Mouse class } +{ + $Log: sdlinput.pas,v $ + Revision 1.9 2007/08/22 21:18:43 savage + Thanks to Dean for his MouseDelta patch. + + Revision 1.8 2005/08/03 18:57:32 savage + Various updates and additions. Mainly to handle OpenGL 3D Window support and better cursor support for the mouse class + + Revision 1.7 2004/09/30 22:32:04 savage + Updated with slightly different header comments + + Revision 1.6 2004/09/12 21:52:58 savage + Slight changes to fix some issues with the sdl classes. + + Revision 1.5 2004/05/10 21:11:49 savage + changes required to help get SoAoS off the ground. + + Revision 1.4 2004/05/03 22:38:40 savage + Added the ability to enable or disable certain inputs @ runtime. Basically it just does not call UpdateInput if Enabled = false. + Can also disable and enable input devices via the InputManager. + + Revision 1.3 2004/04/28 21:27:01 savage + Updated Joystick code and event handlers. Needs testing... + + Revision 1.2 2004/02/14 22:36:29 savage + Fixed inconsistencies of using LoadLibrary and LoadModule. + Now all units make use of LoadModule rather than LoadLibrary and other dynamic proc procedures. + + Revision 1.1 2004/02/05 00:08:20 savage + Module 1.0 release + + +} +{******************************************************************************} + +interface + +{$i jedi-sdl.inc} + +uses + Classes, + sdl; + +type + TSDLInputType = ( itJoystick , itKeyBoard, itMouse ); + TSDLInputTypes = set of TSDLInputType; + + TSDLCustomInput = class( TObject ) + private + FEnabled: Boolean; + public + constructor Create; + function UpdateInput( event: TSDL_EVENT ) : Boolean; virtual; abstract; + property Enabled : Boolean read FEnabled write FEnabled; + end; + + TSDLJoyAxisMoveEvent = procedure ( Which: UInt8; Axis: UInt8; Value: SInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF}; + TSDLJoyBallMoveEvent = procedure ( Which: UInt8; Ball: UInt8; RelativePos: TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF}; + TSDLJoyHatMoveEvent = procedure ( Which: UInt8; Hat: UInt8; Value: SInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF}; + TSDLJoyButtonEvent = procedure ( Which: UInt8; Button: UInt8; State: SInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF}; + + + TSDLJoyStick = class( TSDLCustomInput ) + private + FJoystick : PSDL_Joystick; + FJoystickIndex : Integer; + FJoyAxisMoveEvent : TSDLJoyAxisMoveEvent; + FJoyBallMoveEvent : TSDLJoyBallMoveEvent; + FJoyHatMoveEvent : TSDLJoyHatMoveEvent; + FJoyButtonDownEvent : TSDLJoyButtonEvent; + FJoyButtonUpEvent : TSDLJoyButtonEvent; + procedure DoAxisMove( Event : TSDL_Event ); + procedure DoBallMove( Event : TSDL_Event ); + procedure DoHatMove( Event : TSDL_Event ); + procedure DoButtonDown( Event : TSDL_Event ); + procedure DoButtonUp( Event : TSDL_Event ); + function GetName: PChar; + function GetNumAxes: integer; + function GetNumBalls: integer; + function GetNumButtons: integer; + function GetNumHats: integer; + public + constructor Create( Index : Integer ); + destructor Destroy; override; + procedure Open; + procedure Close; + function UpdateInput( Event: TSDL_EVENT ) : Boolean; override; + property Name : PChar read GetName; + property NumAxes : integer read GetNumAxes; + property NumBalls : integer read GetNumBalls; + property NumButtons : integer read GetNumButtons; + property NumHats : integer read GetNumHats; + property OnAxisMove : TSDLJoyAxisMoveEvent read FJoyAxisMoveEvent write FJoyAxisMoveEvent; + property OnBallMove : TSDLJoyBallMoveEvent read FJoyBallMoveEvent write FJoyBallMoveEvent; + property OnHatMove : TSDLJoyHatMoveEvent read FJoyHatMoveEvent write FJoyHatMoveEvent; + property OnButtonDown : TSDLJoyButtonEvent read FJoyButtonDownEvent write FJoyButtonDownEvent; + property OnButtonUp : TSDLJoyButtonEvent read FJoyButtonUpEvent write FJoyButtonUpEvent; + end; + + TSDLJoySticks = class( TObject ) + private + FNumOfJoySticks: Integer; + FJoyStickList : TList; + function GetJoyStick(Index: integer): TSDLJoyStick; + procedure SetJoyStick(Index: integer; const Value: TSDLJoyStick); + public + constructor Create; + destructor Destroy; override; + function UpdateInput( event: TSDL_EVENT ) : Boolean; + property NumOfJoySticks : Integer read FNumOfJoySticks write FNumOfJoySticks; + property JoySticks[ Index : integer ] : TSDLJoyStick read GetJoyStick write SetJoyStick; + end; + + TSDLKeyBoardEvent = procedure ( var Key: TSDLKey; Shift: TSDLMod; unicode : UInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF}; + + TSDLKeyBoard = class( TSDLCustomInput ) + private + FKeys : PKeyStateArr; + FOnKeyUp: TSDLKeyBoardEvent; + FOnKeyDown: TSDLKeyBoardEvent; + procedure DoKeyDown( keysym : PSDL_keysym ); + procedure DoKeyUp( keysym : PSDL_keysym ); + public + function IsKeyDown( Key : TSDLKey ) : Boolean; + function IsKeyUp( Key : TSDLKey ) : Boolean; + function UpdateInput( event: TSDL_EVENT ) : Boolean; override; + property Keys : PKeyStateArr read FKeys write FKeys; + property OnKeyDown : TSDLKeyBoardEvent read FOnKeyDown write FOnKeyDown; + property OnKeyUp : TSDLKeyBoardEvent read FOnKeyUp write FOnKeyUp; + end; + + TSDLMouseButtonEvent = procedure ( Button : Integer; Shift: TSDLMod; MousePos : TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF}; + TSDLMouseMoveEvent = procedure ( Shift: TSDLMod; CurrentPos : TPoint; RelativePos : TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF}; + TSDLMouseWheelEvent = procedure ( WheelDelta : Integer; Shift: TSDLMod; MousePos : TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF}; + + TSDLCustomCursor = class( TObject ) + private + FFileName : string; + FHotPoint: TPoint; + procedure SetFileName(const aValue: string ); + function ScanForChar( str : string; ch : Char; startPos : Integer; lookFor : Boolean ) : Integer; + public + constructor Create( const aFileName : string; aHotPoint: TPoint ); + procedure LoadFromFile( const aFileName : string ); virtual; abstract; + procedure LoadFromStream( aStream : TStream ); virtual; abstract; + procedure Show; virtual; abstract; + property FileName : string read FFileName write SetFileName; + property HotPoint : TPoint read FHotPoint write FHotPoint; + end; + + TSDLXPMCursor = class( TSDLCustomCursor ) + private + FCursor : PSDL_Cursor; + procedure FreeCursor; + public + destructor Destroy; override; + procedure LoadFromFile( const aFileName : string ); override; + procedure LoadFromStream( aStream : TStream ); override; + procedure Show; override; + end; + + TSDLCursorList = class( TStringList ) + protected + function GetObject( aIndex : Integer ): TSDLCustomCursor; reintroduce; + procedure PutObject( aIndex : Integer; AObject : TSDLCustomCursor); reintroduce; + public + constructor Create; + function AddCursor(const aName : string; aObject : TSDLCustomCursor): Integer; virtual; + end; + + TSDLMouse = class( TSDLCustomInput ) + private + FDragging : Boolean; + FMousePos : TPoint; + FOnMouseUp: TSDLMouseButtonEvent; + FOnMouseDown: TSDLMouseButtonEvent; + FOnMouseMove: TSDLMouseMoveEvent; + FOnMouseWheel: TSDLMouseWheelEvent; + FCursorList : TSDLCursorList; // Cursor Pointer + procedure DoMouseMove( Event: TSDL_Event ); + procedure DoMouseDown( Event: TSDL_Event ); + procedure DoMouseUp( Event: TSDL_Event ); + procedure DoMouseWheelScroll( Event: TSDL_Event ); + function GetMousePosition: TPoint; + procedure SetMousePosition(const Value: TPoint); + function GetMouseDelta: TPoint; + public + destructor Destroy; override; + function UpdateInput( event: TSDL_EVENT ) : Boolean; override; + function MouseIsDown( Button : Integer ) : Boolean; + function MouseIsUp( Button : Integer ) : Boolean; + procedure ShowCursor; + procedure HideCursor; + property OnMouseDown : TSDLMouseButtonEvent read FOnMouseDown write FOnMouseDown; + property OnMouseUp : TSDLMouseButtonEvent read FOnMouseUp write FOnMouseUp; + property OnMouseMove : TSDLMouseMoveEvent read FOnMouseMove write FOnMouseMove; + property OnMouseWheel : TSDLMouseWheelEvent read FOnMouseWheel write FOnMouseWheel; + property MousePosition : TPoint read GetMousePosition write SetMousePosition; + property MouseDelta: TPoint read GetMouseDelta; + property Cursors : TSDLCursorList read FCursorList write FCursorList; + end; + + TSDLInputManager = class( TObject ) + private + FKeyBoard : TSDLKeyBoard; + FMouse : TSDLMouse; + FJoystick : TSDLJoysticks; + public + constructor Create( InitInputs : TSDLInputTypes ); + destructor Destroy; override; + procedure Disable( InitInputs : TSDLInputTypes; JoyStickNumber : Integer = 0 ); + procedure Enable( InitInputs : TSDLInputTypes; JoyStickNumber : Integer = 0 ); + function UpdateInputs( event: TSDL_EVENT ) : Boolean; + property KeyBoard : TSDLKeyBoard read FKeyBoard write FKeyBoard; + property Mouse : TSDLMouse read FMouse write FMouse; + property JoyStick : TSDLJoysticks read FJoyStick write FJoyStick; + end; + +implementation + +uses + SysUtils; + +{ TSDLCustomInput } +constructor TSDLCustomInput.Create; +begin + inherited; + FEnabled := true; +end; + +{ TSDLJoysticks } +constructor TSDLJoysticks.Create; +var + i : integer; +begin + inherited; + if ( SDL_WasInit( SDL_INIT_JOYSTICK ) = 0 ) then + SDL_InitSubSystem( SDL_INIT_JOYSTICK ); + FNumOfJoySticks := SDL_NumJoysticks; + FJoyStickList := TList.Create; + for i := 0 to FNumOfJoySticks - 1 do + begin + FJoyStickList.Add( TSDLJoyStick.Create( i ) ); + end; +end; + +destructor TSDLJoysticks.Destroy; +var + i : integer; +begin + if FJoyStickList.Count > 0 then + begin + for i := 0 to FJoyStickList.Count - 1 do + begin + TSDLJoyStick( FJoyStickList.Items[i] ).Free; + end; + end; + SDL_QuitSubSystem( SDL_INIT_JOYSTICK ); + inherited; +end; + +function TSDLJoySticks.GetJoyStick(Index: integer): TSDLJoyStick; +begin + Result := TSDLJoyStick( FJoyStickList[ Index ] ); +end; + +procedure TSDLJoySticks.SetJoyStick(Index: integer; + const Value: TSDLJoyStick); +begin + FJoyStickList[ Index ] := @Value; +end; + +function TSDLJoysticks.UpdateInput(event: TSDL_EVENT): Boolean; +var + i : integer; +begin + result := false; + if FJoyStickList.Count > 0 then + begin + for i := 0 to FJoyStickList.Count - 1 do + begin + TSDLJoyStick( FJoyStickList.Items[i] ).UpdateInput( event ); + end; + end; +end; + +{ TSDLKeyBoard } +procedure TSDLKeyBoard.DoKeyDown(keysym: PSDL_keysym); +begin + if Assigned( FOnKeyDown ) then + FOnKeyDown( keysym.sym , keysym.modifier, keysym.unicode ); +end; + +procedure TSDLKeyBoard.DoKeyUp(keysym: PSDL_keysym); +begin + if Assigned( FOnKeyUp ) then + FOnKeyUp( keysym.sym , keysym.modifier, keysym.unicode ); +end; + +function TSDLKeyBoard.IsKeyDown( Key: TSDLKey ): Boolean; +begin + SDL_PumpEvents; + + // Populate Keys array + FKeys := PKeyStateArr( SDL_GetKeyState( nil ) ); + Result := ( FKeys[Key] = SDL_PRESSED ); +end; + +function TSDLKeyBoard.IsKeyUp( Key: TSDLKey ): Boolean; +begin + SDL_PumpEvents; + + // Populate Keys array + FKeys := PKeyStateArr( SDL_GetKeyState( nil ) ); + Result := ( FKeys[Key] = SDL_RELEASED ); +end; + +function TSDLKeyBoard.UpdateInput(event: TSDL_EVENT): Boolean; +begin + result := false; + if ( FEnabled ) then + begin + case event.type_ of + SDL_KEYDOWN : + begin + // handle key presses + DoKeyDown( @event.key.keysym ); + result := true; + end; + + SDL_KEYUP : + begin + // handle key releases + DoKeyUp( @event.key.keysym ); + result := true; + end; + end; + end; +end; + +{ TSDLMouse } +destructor TSDLMouse.Destroy; +begin + + inherited; +end; + +procedure TSDLMouse.DoMouseDown( Event: TSDL_Event ); +var + CurrentPos : TPoint; +begin + FDragging := true; + if Assigned( FOnMouseDown ) then + begin + CurrentPos.x := event.button.x; + CurrentPos.y := event.button.y; + FOnMouseDown( event.button.button, SDL_GetModState, CurrentPos ); + end; +end; + +procedure TSDLMouse.DoMouseMove( Event: TSDL_Event ); +var + CurrentPos, RelativePos : TPoint; +begin + if Assigned( FOnMouseMove ) then + begin + CurrentPos.x := event.motion.x; + CurrentPos.y := event.motion.y; + RelativePos.x := event.motion.xrel; + RelativePos.y := event.motion.yrel; + FOnMouseMove( SDL_GetModState, CurrentPos, RelativePos ); + end; +end; + +procedure TSDLMouse.DoMouseUp( event: TSDL_EVENT ); +var + Point : TPoint; +begin + FDragging := false; + if Assigned( FOnMouseUp ) then + begin + Point.x := event.button.x; + Point.y := event.button.y; + FOnMouseUp( event.button.button, SDL_GetModState, Point ); + end; +end; + +procedure TSDLMouse.DoMouseWheelScroll( event: TSDL_EVENT ); +var + Point : TPoint; +begin + if Assigned( FOnMouseWheel ) then + begin + Point.x := event.button.x; + Point.y := event.button.y; + if ( event.button.button = SDL_BUTTON_WHEELUP ) then + FOnMouseWheel( SDL_BUTTON_WHEELUP, SDL_GetModState, Point ) + else + FOnMouseWheel( SDL_BUTTON_WHEELDOWN, SDL_GetModState, Point ); + end; +end; + +function TSDLMouse.GetMouseDelta: TPoint; +begin + SDL_PumpEvents; + + SDL_GetRelativeMouseState( Result.X, Result.Y ); +end; + +function TSDLMouse.GetMousePosition: TPoint; +begin + SDL_PumpEvents; + + SDL_GetMouseState( FMousePos.X, FMousePos.Y ); + Result := FMousePos; +end; + +procedure TSDLMouse.HideCursor; +begin + SDL_ShowCursor( SDL_DISABLE ); +end; + +function TSDLMouse.MouseIsDown(Button: Integer): Boolean; +begin + SDL_PumpEvents; + + Result := ( SDL_GetMouseState( FMousePos.X, FMousePos.Y ) and SDL_BUTTON( Button ) = 0 ); +end; + +function TSDLMouse.MouseIsUp(Button: Integer): Boolean; +begin + SDL_PumpEvents; + + Result := not ( SDL_GetMouseState( FMousePos.X, FMousePos.Y ) and SDL_BUTTON( Button ) = 0 ); +end; + +procedure TSDLMouse.SetMousePosition(const Value: TPoint); +begin + SDL_WarpMouse( Value.x, Value.y ); +end; + +procedure TSDLMouse.ShowCursor; +begin + SDL_ShowCursor( SDL_ENABLE ); +end; + +function TSDLMouse.UpdateInput(event: TSDL_EVENT): Boolean; +begin + result := false; + if ( FEnabled ) then + begin + case event.type_ of + SDL_MOUSEMOTION : + begin + // handle Mouse Move + DoMouseMove( event ); + end; + + SDL_MOUSEBUTTONDOWN : + begin + // handle Mouse Down + if ( event.button.button = SDL_BUTTON_WHEELUP ) + or ( event.button.button = SDL_BUTTON_WHEELDOWN ) then + DoMouseWheelScroll( event ) + else + DoMouseDown( event ); + end; + + SDL_MOUSEBUTTONUP : + begin + // handle Mouse Up + if ( event.button.button = SDL_BUTTON_WHEELUP ) + or ( event.button.button = SDL_BUTTON_WHEELDOWN ) then + DoMouseWheelScroll( event ) + else + DoMouseUp( event ); + end; + end; + end; +end; + +{ TSDLInputManager } +constructor TSDLInputManager.Create(InitInputs: TSDLInputTypes); +begin + inherited Create; + if itJoystick in InitInputs then + FJoystick := TSDLJoysticks.Create; + + if itKeyBoard in InitInputs then + FKeyBoard := TSDLKeyBoard.Create; + + if itMouse in InitInputs then + FMouse := TSDLMouse.Create; +end; + +destructor TSDLInputManager.Destroy; +begin + if FJoystick <> nil then + FreeAndNil( FJoystick ); + if FKeyBoard <> nil then + FreeAndNil( FKeyBoard ); + if FMouse <> nil then + FreeAndNil( FMouse ); + inherited; +end; + +procedure TSDLInputManager.Disable( InitInputs : TSDLInputTypes; JoyStickNumber : Integer ); +begin + if itJoystick in InitInputs then + FJoystick.JoySticks[ JoyStickNumber ].Enabled := false; + + if itKeyBoard in InitInputs then + FKeyBoard.Enabled := false; + + if itMouse in InitInputs then + FMouse.Enabled := false; +end; + +procedure TSDLInputManager.Enable( InitInputs: TSDLInputTypes; JoyStickNumber: Integer ); +begin + if itJoystick in InitInputs then + FJoystick.JoySticks[ JoyStickNumber ].Enabled := true; + + if itKeyBoard in InitInputs then + FKeyBoard.Enabled := true; + + if itMouse in InitInputs then + FMouse.Enabled := true; +end; + +function TSDLInputManager.UpdateInputs( event: TSDL_EVENT ): Boolean; +begin + Result := false; + if ( FJoystick <> nil ) then + Result := FJoystick.UpdateInput( event ); + if ( FKeyBoard <> nil ) then + Result := FKeyBoard.UpdateInput( event ); + if ( FMouse <> nil ) then + Result := FMouse.UpdateInput( event ); +end; + +{ TSDLJoyStick } +procedure TSDLJoyStick.Close; +begin + SDL_JoystickClose( @FJoystick ); +end; + +constructor TSDLJoyStick.Create( Index : Integer ); +begin + inherited Create; + FJoystick := nil; + FJoystickIndex := Index; +end; + +destructor TSDLJoyStick.Destroy; +begin + if FJoystick <> nil then + Close; + inherited; +end; + +procedure TSDLJoyStick.DoAxisMove(Event: TSDL_Event); +begin + if Assigned( FJoyAxisMoveEvent ) then + begin + FJoyAxisMoveEvent( Event.jaxis.which, Event.jaxis.axis, Event.jaxis.value ); + end +end; + +procedure TSDLJoyStick.DoBallMove(Event: TSDL_Event); +var + BallPoint : TPoint; +begin + if Assigned( FJoyBallMoveEvent ) then + begin + BallPoint.x := Event.jball.xrel; + BallPoint.y := Event.jball.yrel; + FJoyBallMoveEvent( Event.jball.which, Event.jball.ball, BallPoint ); + end; +end; + +procedure TSDLJoyStick.DoButtonDown(Event: TSDL_Event); +begin + if Assigned( FJoyButtonDownEvent ) then + begin + if ( Event.jbutton.state = SDL_PRESSED ) then + FJoyButtonDownEvent( Event.jbutton.which, Event.jbutton.button, Event.jbutton.state ); + end; +end; + +procedure TSDLJoyStick.DoButtonUp(Event: TSDL_Event); +begin + if Assigned( FJoyButtonUpEvent ) then + begin + if ( Event.jbutton.state = SDL_RELEASED ) then + FJoyButtonUpEvent( Event.jbutton.which, Event.jbutton.button, Event.jbutton.state ); + end +end; + +procedure TSDLJoyStick.DoHatMove(Event: TSDL_Event); +begin + if Assigned( FJoyHatMoveEvent ) then + begin + FJoyHatMoveEvent( Event.jhat.which, Event.jhat.hat, Event.jhat.value ); + end; +end; + +function TSDLJoyStick.GetName: PChar; +begin + result := FJoystick.name; +end; + +function TSDLJoyStick.GetNumAxes: integer; +begin + result := FJoystick.naxes; +end; + +function TSDLJoyStick.GetNumBalls: integer; +begin + result := FJoystick.nballs; +end; + +function TSDLJoyStick.GetNumButtons: integer; +begin + result := FJoystick.nbuttons; +end; + +function TSDLJoyStick.GetNumHats: integer; +begin + result := FJoystick.nhats; +end; + +procedure TSDLJoyStick.Open; +begin + FJoystick := SDL_JoyStickOpen( FJoystickIndex ); +end; + +function TSDLJoyStick.UpdateInput(Event: TSDL_EVENT): Boolean; +begin + Result := false; + + if ( FEnabled ) then + begin + case event.type_ of + SDL_JOYAXISMOTION : + begin + DoAxisMove( Event ); + end; + + SDL_JOYBALLMOTION : + begin + DoBallMove( Event ); + end; + + SDL_JOYHATMOTION : + begin + DoHatMove( Event ); + end; + + SDL_JOYBUTTONDOWN : + begin + DoButtonDown( Event ); + end; + + SDL_JOYBUTTONUP : + begin + DoButtonUp( Event ); + end; + end; + end; +end; + +{ TSDLCustomCursor } + +constructor TSDLCustomCursor.Create(const aFileName: string; aHotPoint: TPoint); +begin + inherited Create; + FHotPoint := aHotPoint; + LoadFromFile( aFileName ); +end; + +function TSDLCustomCursor.ScanForChar(str: string; ch: Char; + startPos: Integer; lookFor: Boolean): Integer; +begin + Result := -1; + while ( ( ( str[ startPos ] = ch ) <> lookFor ) and ( startPos < Length( str ) ) ) do + inc( startPos ); + if startPos <> Length( str ) then + Result := startPos; +end; + +procedure TSDLCustomCursor.SetFileName(const aValue: string); +begin + LoadFromFile( aValue ); +end; + +{ TSDLXPMCursor } + +destructor TSDLXPMCursor.Destroy; +begin + FreeCursor; + inherited; +end; + +procedure TSDLXPMCursor.FreeCursor; +begin + if FCursor <> nil then + begin + SDL_FreeCursor( FCursor ); + FFileName := ''; + end; +end; + +procedure TSDLXPMCursor.LoadFromFile(const aFileName: string); +var + xpmFile : Textfile; + step : Integer; + holdPos : Integer; + counter : Integer; + dimensions : array[ 1..3 ] of Integer; + clr, clrNone, clrBlack, clrWhite : Char; + data, mask : array of UInt8; + i, col : Integer; + LineString : string; +begin + FreeCursor; + AssignFile( xpmFile, aFileName ); + Reset( xpmFile ); + step := 0; + i := -1; + clrBlack := 'X'; + clrWhite := ','; + clrNone := ' '; + counter := 0; + while not ( eof( xpmFile ) ) do + begin + Readln( xpmFile, LineString ); + // scan for strings + if LineString[ 1 ] = '"' then + begin + case step of + 0 : // Get dimensions (should be width height number-of-colors ???) + begin + HoldPos := 2; + counter := ScanForChar( LineString, ' ', HoldPos, False ); + counter := ScanForChar( LineString, ' ', counter, True ); + dimensions[ 1 ] := StrToInt( Copy( LineString, HoldPos, counter - HoldPos ) ); + counter := ScanForChar( LineString, ' ', counter, False ); + holdPos := counter; + counter := ScanForChar( LineString, ' ', counter, True ); + dimensions[ 2 ] := StrToInt( Copy( LineString, holdPos, counter - HoldPos ) ); + counter := ScanForChar( LineString, ' ', counter, False ); + holdPos := counter; + counter := ScanForChar( LineString, ' ', counter, True ); + dimensions[ 3 ] := StrToInt( Copy( LineString, holdPos, counter - HoldPos ) ); + step := 1; + SetLength( data, ( dimensions[ 1 ] * dimensions[ 2 ] ) div 8 ); + SetLength( mask, ( dimensions[ 1 ] * dimensions[ 2 ] ) div 8 ); + //Log.LogStatus( 'Length = ' + IntToStr( ( dimensions[ 1 ] * dimensions[ 2 ] ) div 8 ), 'LoadCursorFromFile' ); + end; + 1 : // get the symbols for transparent, black and white + begin + // get the symbol for the color + clr := LineString[ 2 ]; + // look for the 'c' symbol + counter := ScanForChar( LineString, 'c', 3, True ); + inc( counter ); + counter := ScanForChar( LineString, ' ', counter, False ); + if LowerCase( Copy( LineString, counter, 4 ) ) = 'none' then + begin + clrNone := clr; + end; + if LowerCase( Copy( LineString, counter, 7 ) ) = '#ffffff' then + begin + clrWhite := clr; + end; + if LowerCase( Copy( LineString, counter, 7 ) ) = '#000000' then + begin + clrBlack := clr; + end; + dec( dimensions[ 3 ] ); + if dimensions[ 3 ] = 0 then + begin + step := 2; + counter := 0; + end; + end; + 2 : // get cursor information -- modified from the SDL + // documentation of SDL_CreateCursor. + begin + for col := 1 to dimensions[1] do + begin + if ( ( col mod 8 ) <> 1 ) then + begin + data[ i ] := data[ i ] shl 1; + mask[ i ] := mask[ i ] shl 1; + end + else + begin + inc( i ); + data[ i ] := 0; + mask[ i ] := 0; + end; + if LineString[ col ] = clrWhite then + begin + mask[ i ] := mask[ i ] or $01; + end + else if LineString[ col ] = clrBlack then + begin + data[ i ] := data[ i ] or $01; + mask[ i ] := mask[ i ] or $01; + end + else if LineString[ col + 1 ] = clrNone then + begin + // + end; + end; + inc(counter); + if counter = dimensions[2] then + step := 4; + end; + end; + end; + end; + CloseFile( xpmFile ); + FCursor := SDL_CreateCursor( PUInt8( data ), PUInt8( mask ), dimensions[ 1 ], dimensions[ 2 ], FHotPoint.x, FHotPoint.y ); +end; + +procedure TSDLXPMCursor.LoadFromStream(aStream: TStream); +begin + inherited; + +end; + +procedure TSDLXPMCursor.Show; +begin + inherited; + SDL_SetCursor( FCursor ); +end; + +{ TSDLCursorList } +function TSDLCursorList.AddCursor(const aName : string; aObject : TSDLCustomCursor): Integer; +begin + result := inherited AddObject( aName, aObject ); +end; + +constructor TSDLCursorList.Create; +begin + inherited; + Duplicates := dupIgnore; +end; + +function TSDLCursorList.GetObject(aIndex: Integer): TSDLCustomCursor; +begin + result := TSDLCustomCursor( inherited GetObject( aIndex ) ); +end; + +procedure TSDLCursorList.PutObject(aIndex: Integer; aObject: TSDLCustomCursor); +begin + inherited PutObject( aIndex, aObject ); +end; + +end. diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas index 64009176..8ba3946f 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas @@ -1,216 +1,216 @@ -unit sdlstreams;
-{
- $Id: sdlstreams.pas,v 1.1 2004/02/05 00:08:20 savage Exp $
-
-}
-{******************************************************************}
-{ }
-{ SDL - Simple DirectMedia Layer }
-{ Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga }
-{ }
-{ Portions created by Chris Bruner are }
-{ Copyright (C) 2002 Chris Bruner. }
-{ }
-{ Contributor(s) }
-{ -------------- }
-{ }
-{ }
-{ Obtained through: }
-{ Joint Endeavour of Delphi Innovators ( Project JEDI ) }
-{ }
-{ You may retrieve the latest version of this file at the Project }
-{ JEDI home page, located at http://delphi-jedi.org }
-{ }
-{ The contents of this file are used with permission, subject to }
-{ the Mozilla Public License Version 1.1 (the "License"); you may }
-{ not use this file except in compliance with the License. You may }
-{ obtain a copy of the License at }
-{ http://www.mozilla.org/NPL/NPL-1_1Final.html }
-{ }
-{ Software distributed under the License is distributed on an }
-{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or }
-{ implied. See the License for the specific language governing }
-{ rights and limitations under the License. }
-{ }
-{ Description }
-{ ----------- }
-{ Shows how to use OpenGL to do 2D and 3D with the SDL libraries }
-{ }
-{ }
-{ Requires }
-{ -------- }
-{ SDL runtime libary somewhere in your path }
-{ The Latest SDL runtime can be found on http://www.libsdl.org }
-{ }
-{ Programming Notes }
-{ ----------------- }
-{ }
-{ }
-{ }
-{ }
-{ }
-{ Revision History }
-{ ---------------- }
-{ January 11 2002 - CB : Software embraced and extended by }
-{ Chris Bruner of Crystal Software }
-{ (Canada) Inc. }
-{ }
-{ February 11 2002 - DL : Added FreePascal support as suggested }
-{ by "QuePasha Pepe" <mrkroket@hotmail.com> }
-{ }
-{******************************************************************}
-{
- $Log: sdlstreams.pas,v $
- Revision 1.1 2004/02/05 00:08:20 savage
- Module 1.0 release
-
-
-}
-
-{$i jedi-sdl.inc}
-
-interface
-
-uses
- Classes,
- SysUtils,
- sdl,
- sdlutils;
-
-{$IFDEF FPC}
-type
- EinvalidContainer=class(Exception);
- {$ENDIF}
-
-function LoadSDLBMPFromStream( Stream : TStream ) : PSDL_Surface;
-procedure SaveSDLBMPToStream( SDL_Surface : PSDL_Surface; stream : TStream );
-function SDL_Swap16( D : UInt16 ) : Uint16;
-function SDL_Swap32( D : UInt32 ) : Uint32;
-function SDLStreamSetup( stream : TStream ) : PSDL_RWops;
-// this only closes the SDL_RWops part of the stream, not the stream itself
-procedure SDLStreamCloseRWops( SDL_RWops : PSDL_RWops );
-
-implementation
-
-function SDL_Swap16( D : UInt16 ) : Uint16;
-begin
- Result := ( D shl 8 ) or ( D shr 8 );
-end;
-
-function SDL_Swap32( D : UInt32 ) : Uint32;
-begin
- Result := ( ( D shl 24 ) or ( ( D shl 8 ) and $00FF0000 ) or ( ( D shr 8 ) and $0000FF00 ) or ( D shr 24 ) );
-end;
-
-(*function SDL_Swap64(D : UInt64) : Uint64;
-var hi,lo : Uint32;
-begin
- // Separate into high and low 32-bit resultues and swap them
- lo := Uint32(D and $0FFFFFFFF); // bloody pascal is too tight in it's type checking!
- D := D shr 32;
- hi = Uint32((D and $FFFFFFFF));
- result = SDL_Swap32(lo);
- result := result shl 32;
- result := result or SDL_Swap32(hi);
-end;
-*)
-
-function SdlStreamSeek( context : PSDL_RWops; offset : Integer; whence : Integer ) : integer; cdecl;
-var
- stream : TStream;
- origin : Word;
-begin
- stream := TStream( context.unknown );
- if ( stream = nil ) then
- raise EInvalidContainer.Create( 'SDLStreamSeek on nil' );
- case whence of
- 0 : origin := soFromBeginning; // Offset is from the beginning of the resource. Seek moves to the position Offset. Offset must be >= 0.
- 1 : origin := soFromCurrent; // Offset is from the current position in the resource. Seek moves to Position + Offset.
- 2 : origin := soFromEnd;
- else
- origin := soFromBeginning; // just in case
- end;
- Result := stream.Seek( offset, origin );
-end;
-
-function SDLStreamWrite( context : PSDL_RWops; Ptr : Pointer;
- size : Integer; num : Integer ) : Integer; cdecl;
-var
- stream : TStream;
-begin
- stream := TStream( context.unknown );
- if ( stream = nil ) then
- raise EInvalidContainer.Create( 'SDLStreamWrite on nil' );
- try
- Result := stream.Write( Ptr^, Size * num ) div size;
- except
- Result := -1;
- end;
-end;
-
-function SdlStreamRead( context : PSDL_RWops; Ptr : Pointer; size : Integer; maxnum
- : Integer ) : Integer; cdecl;
-var
- stream : TStream;
-begin
- stream := TStream( context.unknown );
- if ( stream = nil ) then
- raise EInvalidContainer.Create( 'SDLStreamRead on nil' );
- try
- Result := stream.read( Ptr^, Size * maxnum ) div size;
- except
- Result := -1;
- end;
-end;
-
-function SDLStreamClose( context : PSDL_RWops ) : Integer; cdecl;
-var
- stream : TStream;
-begin
- stream := TStream( context.unknown );
- if ( stream = nil ) then
- raise EInvalidContainer.Create( 'SDLStreamClose on nil' );
- stream.Free;
- Result := 1;
-end;
-
-function SDLStreamSetup( stream : TStream ) : PSDL_RWops;
-begin
- result := SDL_AllocRW;
- if ( result = nil ) then
- raise EInvalidContainer.Create( 'could not create SDLStream on nil' );
- result.unknown := TUnknown( stream );
- result.seek := SDLStreamSeek;
- result.read := SDLStreamRead;
- result.write := SDLStreamWrite;
- result.close := SDLStreamClose;
- Result.type_ := 2; // TUnknown
-end;
-
-// this only closes the SDL part of the stream, not the context
-
-procedure SDLStreamCloseRWops( SDL_RWops : PSDL_RWops );
-begin
- SDL_FreeRW( SDL_RWops );
-end;
-
-function LoadSDLBMPFromStream( stream : TStream ) : PSDL_Surface;
-var
- SDL_RWops : PSDL_RWops;
-begin
- SDL_RWops := SDLStreamSetup( stream );
- result := SDL_LoadBMP_RW( SDL_RWops, 0 );
- SDLStreamCloseRWops( SDL_RWops );
-end;
-
-procedure SaveSDLBMPToStream( SDL_Surface : PSDL_Surface; stream : TStream );
-var
- SDL_RWops : PSDL_RWops;
-begin
- SDL_RWops := SDLStreamSetup( stream );
- SDL_SaveBMP_RW( SDL_Surface, SDL_RWops, 0 );
- SDLStreamCloseRWops( SDL_RWops );
-end;
-
-end.
-
+unit sdlstreams; +{ + $Id: sdlstreams.pas,v 1.1 2004/02/05 00:08:20 savage Exp $ + +} +{******************************************************************} +{ } +{ SDL - Simple DirectMedia Layer } +{ Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga } +{ } +{ Portions created by Chris Bruner are } +{ Copyright (C) 2002 Chris Bruner. } +{ } +{ Contributor(s) } +{ -------------- } +{ } +{ } +{ Obtained through: } +{ Joint Endeavour of Delphi Innovators ( Project JEDI ) } +{ } +{ You may retrieve the latest version of this file at the Project } +{ JEDI home page, located at http://delphi-jedi.org } +{ } +{ The contents of this file are used with permission, subject to } +{ the Mozilla Public License Version 1.1 (the "License"); you may } +{ not use this file except in compliance with the License. You may } +{ obtain a copy of the License at } +{ http://www.mozilla.org/NPL/NPL-1_1Final.html } +{ } +{ Software distributed under the License is distributed on an } +{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } +{ implied. See the License for the specific language governing } +{ rights and limitations under the License. } +{ } +{ Description } +{ ----------- } +{ Shows how to use OpenGL to do 2D and 3D with the SDL libraries } +{ } +{ } +{ Requires } +{ -------- } +{ SDL runtime libary somewhere in your path } +{ The Latest SDL runtime can be found on http://www.libsdl.org } +{ } +{ Programming Notes } +{ ----------------- } +{ } +{ } +{ } +{ } +{ } +{ Revision History } +{ ---------------- } +{ January 11 2002 - CB : Software embraced and extended by } +{ Chris Bruner of Crystal Software } +{ (Canada) Inc. } +{ } +{ February 11 2002 - DL : Added FreePascal support as suggested } +{ by "QuePasha Pepe" <mrkroket@hotmail.com> } +{ } +{******************************************************************} +{ + $Log: sdlstreams.pas,v $ + Revision 1.1 2004/02/05 00:08:20 savage + Module 1.0 release + + +} + +{$i jedi-sdl.inc} + +interface + +uses + Classes, + SysUtils, + sdl, + sdlutils; + +{$IFDEF FPC} +type + EinvalidContainer=class(Exception); + {$ENDIF} + +function LoadSDLBMPFromStream( Stream : TStream ) : PSDL_Surface; +procedure SaveSDLBMPToStream( SDL_Surface : PSDL_Surface; stream : TStream ); +function SDL_Swap16( D : UInt16 ) : Uint16; +function SDL_Swap32( D : UInt32 ) : Uint32; +function SDLStreamSetup( stream : TStream ) : PSDL_RWops; +// this only closes the SDL_RWops part of the stream, not the stream itself +procedure SDLStreamCloseRWops( SDL_RWops : PSDL_RWops ); + +implementation + +function SDL_Swap16( D : UInt16 ) : Uint16; +begin + Result := ( D shl 8 ) or ( D shr 8 ); +end; + +function SDL_Swap32( D : UInt32 ) : Uint32; +begin + Result := ( ( D shl 24 ) or ( ( D shl 8 ) and $00FF0000 ) or ( ( D shr 8 ) and $0000FF00 ) or ( D shr 24 ) ); +end; + +(*function SDL_Swap64(D : UInt64) : Uint64; +var hi,lo : Uint32; +begin + // Separate into high and low 32-bit resultues and swap them + lo := Uint32(D and $0FFFFFFFF); // bloody pascal is too tight in it's type checking! + D := D shr 32; + hi = Uint32((D and $FFFFFFFF)); + result = SDL_Swap32(lo); + result := result shl 32; + result := result or SDL_Swap32(hi); +end; +*) + +function SdlStreamSeek( context : PSDL_RWops; offset : Integer; whence : Integer ) : integer; cdecl; +var + stream : TStream; + origin : Word; +begin + stream := TStream( context.unknown ); + if ( stream = nil ) then + raise EInvalidContainer.Create( 'SDLStreamSeek on nil' ); + case whence of + 0 : origin := soFromBeginning; // Offset is from the beginning of the resource. Seek moves to the position Offset. Offset must be >= 0. + 1 : origin := soFromCurrent; // Offset is from the current position in the resource. Seek moves to Position + Offset. + 2 : origin := soFromEnd; + else + origin := soFromBeginning; // just in case + end; + Result := stream.Seek( offset, origin ); +end; + +function SDLStreamWrite( context : PSDL_RWops; Ptr : Pointer; + size : Integer; num : Integer ) : Integer; cdecl; +var + stream : TStream; +begin + stream := TStream( context.unknown ); + if ( stream = nil ) then + raise EInvalidContainer.Create( 'SDLStreamWrite on nil' ); + try + Result := stream.Write( Ptr^, Size * num ) div size; + except + Result := -1; + end; +end; + +function SdlStreamRead( context : PSDL_RWops; Ptr : Pointer; size : Integer; maxnum + : Integer ) : Integer; cdecl; +var + stream : TStream; +begin + stream := TStream( context.unknown ); + if ( stream = nil ) then + raise EInvalidContainer.Create( 'SDLStreamRead on nil' ); + try + Result := stream.read( Ptr^, Size * maxnum ) div size; + except + Result := -1; + end; +end; + +function SDLStreamClose( context : PSDL_RWops ) : Integer; cdecl; +var + stream : TStream; +begin + stream := TStream( context.unknown ); + if ( stream = nil ) then + raise EInvalidContainer.Create( 'SDLStreamClose on nil' ); + stream.Free; + Result := 1; +end; + +function SDLStreamSetup( stream : TStream ) : PSDL_RWops; +begin + result := SDL_AllocRW; + if ( result = nil ) then + raise EInvalidContainer.Create( 'could not create SDLStream on nil' ); + result.unknown := TUnknown( stream ); + result.seek := SDLStreamSeek; + result.read := SDLStreamRead; + result.write := SDLStreamWrite; + result.close := SDLStreamClose; + Result.type_ := 2; // TUnknown +end; + +// this only closes the SDL part of the stream, not the context + +procedure SDLStreamCloseRWops( SDL_RWops : PSDL_RWops ); +begin + SDL_FreeRW( SDL_RWops ); +end; + +function LoadSDLBMPFromStream( stream : TStream ) : PSDL_Surface; +var + SDL_RWops : PSDL_RWops; +begin + SDL_RWops := SDLStreamSetup( stream ); + result := SDL_LoadBMP_RW( SDL_RWops, 0 ); + SDLStreamCloseRWops( SDL_RWops ); +end; + +procedure SaveSDLBMPToStream( SDL_Surface : PSDL_Surface; stream : TStream ); +var + SDL_RWops : PSDL_RWops; +begin + SDL_RWops := SDLStreamSetup( stream ); + SDL_SaveBMP_RW( SDL_Surface, SDL_RWops, 0 ); + SDLStreamCloseRWops( SDL_RWops ); +end; + +end. + diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlticks.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlticks.pas index 8e00dd6f..a479b493 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlticks.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlticks.pas @@ -1,197 +1,197 @@ -unit sdlticks;
-{
- $Id: sdlticks.pas,v 1.2 2006/11/08 08:22:48 savage Exp $
-
-}
-{******************************************************************************}
-{ }
-{ JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer }
-{ SDL GetTicks Class Wrapper }
-{ }
-{ }
-{ The initial developer of this Pascal code was : }
-{ Dominique Louis <Dominique@SavageSoftware.com.au> }
-{ }
-{ Portions created by Dominique Louis are }
-{ Copyright (C) 2004 - 2100 Dominique Louis. }
-{ }
-{ }
-{ Contributor(s) }
-{ -------------- }
-{ Dominique Louis <Dominique@SavageSoftware.com.au> }
-{ }
-{ Obtained through: }
-{ Joint Endeavour of Delphi Innovators ( Project JEDI ) }
-{ }
-{ You may retrieve the latest version of this file at the Project }
-{ JEDI home page, located at http://delphi-jedi.org }
-{ }
-{ The contents of this file are used with permission, subject to }
-{ the Mozilla Public License Version 1.1 (the "License"); you may }
-{ not use this file except in compliance with the License. You may }
-{ obtain a copy of the License at }
-{ http://www.mozilla.org/MPL/MPL-1.1.html }
-{ }
-{ Software distributed under the License is distributed on an }
-{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or }
-{ implied. See the License for the specific language governing }
-{ rights and limitations under the License. }
-{ }
-{ Description }
-{ ----------- }
-{ SDL Window Wrapper }
-{ }
-{ }
-{ Requires }
-{ -------- }
-{ SDL.dll on Windows platforms }
-{ libSDL-1.1.so.0 on Linux platform }
-{ }
-{ Programming Notes }
-{ ----------------- }
-{ }
-{ }
-{ }
-{ }
-{ Revision History }
-{ ---------------- }
-{ }
-{ September 23 2004 - DL : Initial Creation }
-{
- $Log: sdlticks.pas,v $
- Revision 1.2 2006/11/08 08:22:48 savage
- updates tp sdlgameinterface and sdlticks functions.
-
- Revision 1.1 2004/09/30 22:35:47 savage
- Changes, enhancements and additions as required to get SoAoS working.
-
-}
-{******************************************************************************}
-
-interface
-
-uses
- sdl;
-
-type
- TSDLTicks = class
- private
- FStartTime : UInt32;
- FTicksPerSecond : UInt32;
- FElapsedLastTime : UInt32;
- FFPSLastTime : UInt32;
- FLockFPSLastTime : UInt32;
- public
- constructor Create;
- destructor Destroy; override; // destructor
-
- {*****************************************************************************
- Init
- If the hi-res timer is present, the tick rate is stored and the function
- returns true. Otherwise, the function returns false, and the timer should
- not be used.
- *****************************************************************************}
- function Init : boolean;
-
- {***************************************************************************
- GetGetElapsedSeconds
- Returns the Elapsed time, since the function was last called.
- ***************************************************************************}
- function GetElapsedSeconds : Single;
-
- {***************************************************************************
- GetFPS
- Returns the average frames per second.
- If this is not called every frame, the client should track the number
- of frames itself, and reset the value after this is called.
- ***************************************************************************}
- function GetFPS : single;
-
- {***************************************************************************
- LockFPS
- Used to lock the frame rate to a set amount. This will block until enough
- time has passed to ensure that the fps won't go over the requested amount.
- Note that this can only keep the fps from going above the specified level;
- it can still drop below it. It is assumed that if used, this function will
- be called every frame. The value returned is the instantaneous fps, which
- will be less than or equal to the targetFPS.
- ***************************************************************************}
- procedure LockFPS( targetFPS : Byte );
- end;
-
-implementation
-
-{ TSDLTicks }
-constructor TSDLTicks.Create;
-begin
- inherited;
- FTicksPerSecond := 1000;
-end;
-
-destructor TSDLTicks.Destroy;
-begin
- inherited;
-end;
-
-function TSDLTicks.GetElapsedSeconds : Single;
-var
- currentTime : Cardinal;
-begin
- currentTime := SDL_GetTicks;
-
- result := ( currentTime - FElapsedLastTime ) / FTicksPerSecond;
-
- // reset the timer
- FElapsedLastTime := currentTime;
-end;
-
-function TSDLTicks.GetFPS : Single;
-var
- currentTime, FrameTime : UInt32;
- fps : single;
-begin
- currentTime := SDL_GetTicks;
-
- FrameTime := ( currentTime - FFPSLastTime );
-
- if FrameTime = 0 then
- FrameTime := 1;
-
- fps := FTicksPerSecond / FrameTime;
-
- // reset the timer
- FFPSLastTime := currentTime;
- result := fps;
-end;
-
-function TSDLTicks.Init : boolean;
-begin
- FStartTime := SDL_GetTicks;
- FElapsedLastTime := FStartTime;
- FFPSLastTime := FStartTime;
- FLockFPSLastTime := FStartTime;
- result := true;
-end;
-
-procedure TSDLTicks.LockFPS( targetFPS : Byte );
-var
- currentTime : UInt32;
- targetTime : single;
-begin
- if ( targetFPS = 0 ) then
- targetFPS := 1;
-
- targetTime := FTicksPerSecond / targetFPS;
-
- // delay to maintain a constant frame rate
- repeat
- currentTime := SDL_GetTicks;
- until ( ( currentTime - FLockFPSLastTime ) > targetTime );
-
- // reset the timer
- FLockFPSLastTime := currentTime;
-end;
-
-end.
-
+unit sdlticks; +{ + $Id: sdlticks.pas,v 1.2 2006/11/08 08:22:48 savage Exp $ + +} +{******************************************************************************} +{ } +{ JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer } +{ SDL GetTicks Class Wrapper } +{ } +{ } +{ The initial developer of this Pascal code was : } +{ Dominique Louis <Dominique@SavageSoftware.com.au> } +{ } +{ Portions created by Dominique Louis are } +{ Copyright (C) 2004 - 2100 Dominique Louis. } +{ } +{ } +{ Contributor(s) } +{ -------------- } +{ Dominique Louis <Dominique@SavageSoftware.com.au> } +{ } +{ Obtained through: } +{ Joint Endeavour of Delphi Innovators ( Project JEDI ) } +{ } +{ You may retrieve the latest version of this file at the Project } +{ JEDI home page, located at http://delphi-jedi.org } +{ } +{ The contents of this file are used with permission, subject to } +{ the Mozilla Public License Version 1.1 (the "License"); you may } +{ not use this file except in compliance with the License. You may } +{ obtain a copy of the License at } +{ http://www.mozilla.org/MPL/MPL-1.1.html } +{ } +{ Software distributed under the License is distributed on an } +{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } +{ implied. See the License for the specific language governing } +{ rights and limitations under the License. } +{ } +{ Description } +{ ----------- } +{ SDL Window Wrapper } +{ } +{ } +{ Requires } +{ -------- } +{ SDL.dll on Windows platforms } +{ libSDL-1.1.so.0 on Linux platform } +{ } +{ Programming Notes } +{ ----------------- } +{ } +{ } +{ } +{ } +{ Revision History } +{ ---------------- } +{ } +{ September 23 2004 - DL : Initial Creation } +{ + $Log: sdlticks.pas,v $ + Revision 1.2 2006/11/08 08:22:48 savage + updates tp sdlgameinterface and sdlticks functions. + + Revision 1.1 2004/09/30 22:35:47 savage + Changes, enhancements and additions as required to get SoAoS working. + +} +{******************************************************************************} + +interface + +uses + sdl; + +type + TSDLTicks = class + private + FStartTime : UInt32; + FTicksPerSecond : UInt32; + FElapsedLastTime : UInt32; + FFPSLastTime : UInt32; + FLockFPSLastTime : UInt32; + public + constructor Create; + destructor Destroy; override; // destructor + + {***************************************************************************** + Init + If the hi-res timer is present, the tick rate is stored and the function + returns true. Otherwise, the function returns false, and the timer should + not be used. + *****************************************************************************} + function Init : boolean; + + {*************************************************************************** + GetGetElapsedSeconds + Returns the Elapsed time, since the function was last called. + ***************************************************************************} + function GetElapsedSeconds : Single; + + {*************************************************************************** + GetFPS + Returns the average frames per second. + If this is not called every frame, the client should track the number + of frames itself, and reset the value after this is called. + ***************************************************************************} + function GetFPS : single; + + {*************************************************************************** + LockFPS + Used to lock the frame rate to a set amount. This will block until enough + time has passed to ensure that the fps won't go over the requested amount. + Note that this can only keep the fps from going above the specified level; + it can still drop below it. It is assumed that if used, this function will + be called every frame. The value returned is the instantaneous fps, which + will be less than or equal to the targetFPS. + ***************************************************************************} + procedure LockFPS( targetFPS : Byte ); + end; + +implementation + +{ TSDLTicks } +constructor TSDLTicks.Create; +begin + inherited; + FTicksPerSecond := 1000; +end; + +destructor TSDLTicks.Destroy; +begin + inherited; +end; + +function TSDLTicks.GetElapsedSeconds : Single; +var + currentTime : Cardinal; +begin + currentTime := SDL_GetTicks; + + result := ( currentTime - FElapsedLastTime ) / FTicksPerSecond; + + // reset the timer + FElapsedLastTime := currentTime; +end; + +function TSDLTicks.GetFPS : Single; +var + currentTime, FrameTime : UInt32; + fps : single; +begin + currentTime := SDL_GetTicks; + + FrameTime := ( currentTime - FFPSLastTime ); + + if FrameTime = 0 then + FrameTime := 1; + + fps := FTicksPerSecond / FrameTime; + + // reset the timer + FFPSLastTime := currentTime; + result := fps; +end; + +function TSDLTicks.Init : boolean; +begin + FStartTime := SDL_GetTicks; + FElapsedLastTime := FStartTime; + FFPSLastTime := FStartTime; + FLockFPSLastTime := FStartTime; + result := true; +end; + +procedure TSDLTicks.LockFPS( targetFPS : Byte ); +var + currentTime : UInt32; + targetTime : single; +begin + if ( targetFPS = 0 ) then + targetFPS := 1; + + targetTime := FTicksPerSecond / targetFPS; + + // delay to maintain a constant frame rate + repeat + currentTime := SDL_GetTicks; + until ( ( currentTime - FLockFPSLastTime ) > targetTime ); + + // reset the timer + FLockFPSLastTime := currentTime; +end; + +end. +
\ No newline at end of file diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlutils.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlutils.pas index 7fbed878..e01f3cdb 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlutils.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlutils.pas @@ -1,4363 +1,4363 @@ -unit sdlutils;
-{
- $Id: sdlutils.pas,v 1.5 2006/11/19 18:56:44 savage Exp $
-
-}
-{******************************************************************************}
-{ }
-{ Borland Delphi SDL - Simple DirectMedia Layer }
-{ SDL Utility functions }
-{ }
-{ }
-{ The initial developer of this Pascal code was : }
-{ Tom Jones <tigertomjones@gmx.de> }
-{ }
-{ Portions created by Tom Jones are }
-{ Copyright (C) 2000 - 2001 Tom Jones. }
-{ }
-{ }
-{ Contributor(s) }
-{ -------------- }
-{ Dominique Louis <Dominique@SavageSoftware.com.au> }
-{ Róbert Kisnémeth <mikrobi@freemail.hu> }
-{ }
-{ Obtained through: }
-{ Joint Endeavour of Delphi Innovators ( Project JEDI ) }
-{ }
-{ You may retrieve the latest version of this file at the Project }
-{ JEDI home page, located at http://delphi-jedi.org }
-{ }
-{ The contents of this file are used with permission, subject to }
-{ the Mozilla Public License Version 1.1 (the "License"); you may }
-{ not use this file except in compliance with the License. You may }
-{ obtain a copy of the License at }
-{ http://www.mozilla.org/MPL/MPL-1.1.html }
-{ }
-{ Software distributed under the License is distributed on an }
-{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or }
-{ implied. See the License for the specific language governing }
-{ rights and limitations under the License. }
-{ }
-{ Description }
-{ ----------- }
-{ Helper functions... }
-{ }
-{ }
-{ Requires }
-{ -------- }
-{ SDL.dll on Windows platforms }
-{ libSDL-1.1.so.0 on Linux platform }
-{ }
-{ Programming Notes }
-{ ----------------- }
-{ }
-{ }
-{ }
-{ }
-{ Revision History }
-{ ---------------- }
-{ 2000 - TJ : Initial creation }
-{ }
-{ July 13 2001 - DL : Added PutPixel and GetPixel routines. }
-{ }
-{ Sept 14 2001 - RK : Added flipping routines. }
-{ }
-{ Sept 19 2001 - RK : Added PutPixel & line drawing & blitting with ADD }
-{ effect. Fixed a bug in SDL_PutPixel & SDL_GetPixel }
-{ Added PSDLRect() }
-{ Sept 22 2001 - DL : Removed need for Windows.pas by defining types here}
-{ Also removed by poor attempt or a dialog box }
-{ }
-{ Sept 25 2001 - RK : Added PixelTest, NewPutPixel, SubPixel, SubLine, }
-{ SubSurface, MonoSurface & TexturedSurface }
-{ }
-{ Sept 26 2001 - DL : Made change so that it refers to native Pascal }
-{ types rather that Windows types. This makes it more}
-{ portable to Linix. }
-{ }
-{ Sept 27 2001 - RK : SDLUtils now can be compiled with FreePascal }
-{ }
-{ Oct 27 2001 - JF : Added ScrollY function }
-{ }
-{ Jan 21 2002 - RK : Added SDL_ZoomSurface and SDL_WarpSurface }
-{ }
-{ Mar 28 2002 - JF : Added SDL_RotateSurface }
-{ }
-{ May 13 2002 - RK : Improved SDL_FillRectAdd & SDL_FillRectSub }
-{ }
-{ May 27 2002 - YS : GradientFillRect function }
-{ }
-{ May 30 2002 - RK : Added SDL_2xBlit, SDL_Scanline2xBlit }
-{ & SDL_50Scanline2xBlit }
-{ }
-{ June 12 2002 - RK : Added SDL_PixelTestSurfaceVsRect }
-{ }
-{ June 12 2002 - JF : Updated SDL_PixelTestSurfaceVsRect }
-{ }
-{ November 9 2002 - JF : Added Jason's boolean Surface functions }
-{ }
-{ December 10 2002 - DE : Added Dean's SDL_ClipLine function }
-{ }
-{ April 26 2003 - SS : Incorporated JF's changes to SDL_ClipLine }
-{ Fixed SDL_ClipLine bug for non-zero cliprect x, y }
-{ Added overloaded SDL_DrawLine for dashed lines }
-{ }
-{******************************************************************************}
-{
- $Log: sdlutils.pas,v $
- Revision 1.5 2006/11/19 18:56:44 savage
- Removed Hints and Warnings.
-
- Revision 1.4 2004/06/02 19:38:53 savage
- Changes to SDL_GradientFillRect as suggested by
- Ángel Eduardo García Hernández. Many thanks.
-
- Revision 1.3 2004/05/29 23:11:54 savage
- Changes to SDL_ScaleSurfaceRect as suggested by
- Ángel Eduardo García Hernández to fix a colour issue with the function. Many thanks.
-
- Revision 1.2 2004/02/14 00:23:39 savage
- As UNIX is defined in jedi-sdl.inc this will be used to check linux compatability as well. Units have been changed to reflect this change.
-
- Revision 1.1 2004/02/05 00:08:20 savage
- Module 1.0 release
-
-
-}
-
-interface
-
-{$I jedi-sdl.inc}
-
-uses
-{$IFDEF UNIX}
- Types,
-{$IFNDEF DARWIN}
- Xlib,
-{$ENDIF}
-{$ENDIF}
- SysUtils,
- sdl;
-
-type
- TGradientStyle = ( gsHorizontal, gsVertical );
-
-// Pixel procedures
-function SDL_PixelTest( SrcSurface1 : PSDL_Surface; SrcRect1 : PSDL_Rect; SrcSurface2 :
- PSDL_Surface; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) : Boolean;
-
-function SDL_GetPixel( SrcSurface : PSDL_Surface; x : integer; y : integer ) : Uint32;
-
-procedure SDL_PutPixel( DstSurface : PSDL_Surface; x : integer; y : integer; pixel :
- Uint32 );
-
-procedure SDL_AddPixel( DstSurface : PSDL_Surface; x : cardinal; y : cardinal; Color :
- cardinal );
-
-procedure SDL_SubPixel( DstSurface : PSDL_Surface; x : cardinal; y : cardinal; Color :
- cardinal );
-
-// Line procedures
-procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal ); overload;
-
-procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal; DashLength, DashSpace : byte ); overload;
-
-procedure SDL_AddLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal );
-
-procedure SDL_SubLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal );
-
-// Surface procedures
-procedure SDL_AddSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-
-procedure SDL_SubSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-
-procedure SDL_MonoSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect; Color : cardinal );
-
-procedure SDL_TexturedSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect; Texture : PSDL_Surface;
- TextureRect : PSDL_Rect );
-
-procedure SDL_ZoomSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; DstRect : PSDL_Rect );
-
-procedure SDL_WarpSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; UL, UR, LR, LL : PPoint );
-
-// Flip procedures
-procedure SDL_FlipRectH( DstSurface : PSDL_Surface; Rect : PSDL_Rect );
-
-procedure SDL_FlipRectV( DstSurface : PSDL_Surface; Rect : PSDL_Rect );
-
-function PSDLRect( aLeft, aTop, aWidth, aHeight : integer ) : PSDL_Rect;
-
-function SDLRect( aLeft, aTop, aWidth, aHeight : integer ) : TSDL_Rect; overload;
-
-function SDLRect( aRect : TRect ) : TSDL_Rect; overload;
-
-function SDL_ScaleSurfaceRect( SrcSurface : PSDL_Surface; SrcX1, SrcY1, SrcW, SrcH,
- Width, Height : integer ) : PSDL_Surface;
-
-procedure SDL_ScrollY( DstSurface : PSDL_Surface; DifY : integer );
-
-procedure SDL_ScrollX( DstSurface : PSDL_Surface; DifX : integer );
-
-procedure SDL_RotateDeg( DstSurface, SrcSurface : PSDL_Surface; SrcRect :
- PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Integer );
-
-procedure SDL_RotateRad( DstSurface, SrcSurface : PSDL_Surface; SrcRect :
- PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Single );
-
-function ValidateSurfaceRect( DstSurface : PSDL_Surface; dstrect : PSDL_Rect ) : TSDL_Rect;
-
-// Fill Rect routine
-procedure SDL_FillRectAdd( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 );
-
-procedure SDL_FillRectSub( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 );
-
-procedure SDL_GradientFillRect( DstSurface : PSDL_Surface; const Rect : PSDL_Rect; const StartColor, EndColor : TSDL_Color; const Style : TGradientStyle );
-
-// NOTE for All SDL_2xblit... function : the dest surface must be 2x of the source surface!
-procedure SDL_2xBlit( Src, Dest : PSDL_Surface );
-
-procedure SDL_Scanline2xBlit( Src, Dest : PSDL_Surface );
-
-procedure SDL_50Scanline2xBlit( Src, Dest : PSDL_Surface );
-
-//
-function SDL_PixelTestSurfaceVsRect( SrcSurface1 : PSDL_Surface; SrcRect1 :
- PSDL_Rect; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) :
- boolean;
-
-// Jason's boolean Surface functions
-procedure SDL_ORSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-
-procedure SDL_ANDSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-
-
-procedure SDL_GTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-
-procedure SDL_LTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-
-function SDL_ClipLine( var x1, y1, x2, y2 : Integer; ClipRect : PSDL_Rect ) : boolean;
-
-implementation
-
-uses
- Math;
-
-function SDL_PixelTest( SrcSurface1 : PSDL_Surface; SrcRect1 : PSDL_Rect; SrcSurface2 :
- PSDL_Surface; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) : boolean;
-var
- Src_Rect1, Src_Rect2 : TSDL_Rect;
- right1, bottom1 : integer;
- right2, bottom2 : integer;
- Scan1Start, Scan2Start, ScanWidth, ScanHeight : cardinal;
- Mod1, Mod2 : cardinal;
- Addr1, Addr2 : PtrUInt;
- BPP : cardinal;
- Pitch1, Pitch2 : cardinal;
- TransparentColor1, TransparentColor2 : cardinal;
- tx, ty : cardinal;
-// StartTick : cardinal; // Auto Removed, Unused Variable
- Color1, Color2 : cardinal;
-begin
- Result := false;
- if SrcRect1 = nil then
- begin
- with Src_Rect1 do
- begin
- x := 0;
- y := 0;
- w := SrcSurface1.w;
- h := SrcSurface1.h;
- end;
- end
- else
- Src_Rect1 := SrcRect1^;
- if SrcRect2 = nil then
- begin
- with Src_Rect2 do
- begin
- x := 0;
- y := 0;
- w := SrcSurface2.w;
- h := SrcSurface2.h;
- end;
- end
- else
- Src_Rect2 := SrcRect2^;
- with Src_Rect1 do
- begin
- Right1 := Left1 + w;
- Bottom1 := Top1 + h;
- end;
- with Src_Rect2 do
- begin
- Right2 := Left2 + w;
- Bottom2 := Top2 + h;
- end;
- if ( Left1 >= Right2 ) or ( Right1 <= Left2 ) or ( Top1 >= Bottom2 ) or ( Bottom1 <=
- Top2 ) then
- exit;
- if Left1 <= Left2 then
- begin
- // 1. left, 2. right
- Scan1Start := Src_Rect1.x + Left2 - Left1;
- Scan2Start := Src_Rect2.x;
- ScanWidth := Right1 - Left2;
- with Src_Rect2 do
- if ScanWidth > w then
- ScanWidth := w;
- end
- else
- begin
- // 1. right, 2. left
- Scan1Start := Src_Rect1.x;
- Scan2Start := Src_Rect2.x + Left1 - Left2;
- ScanWidth := Right2 - Left1;
- with Src_Rect1 do
- if ScanWidth > w then
- ScanWidth := w;
- end;
- with SrcSurface1^ do
- begin
- Pitch1 := Pitch;
- Addr1 := PtrUInt( Pixels );
- inc( Addr1, Pitch1 * UInt32( Src_Rect1.y ) );
- with format^ do
- begin
- BPP := BytesPerPixel;
- TransparentColor1 := colorkey;
- end;
- end;
- with SrcSurface2^ do
- begin
- TransparentColor2 := format.colorkey;
- Pitch2 := Pitch;
- Addr2 := PtrUInt( Pixels );
- inc( Addr2, Pitch2 * UInt32( Src_Rect2.y ) );
- end;
- Mod1 := Pitch1 - ( ScanWidth * BPP );
- Mod2 := Pitch2 - ( ScanWidth * BPP );
- inc( Addr1, BPP * Scan1Start );
- inc( Addr2, BPP * Scan2Start );
- if Top1 <= Top2 then
- begin
- // 1. up, 2. down
- ScanHeight := Bottom1 - Top2;
- if ScanHeight > Src_Rect2.h then
- ScanHeight := Src_Rect2.h;
- inc( Addr1, Pitch1 * UInt32( Top2 - Top1 ) );
- end
- else
- begin
- // 1. down, 2. up
- ScanHeight := Bottom2 - Top1;
- if ScanHeight > Src_Rect1.h then
- ScanHeight := Src_Rect1.h;
- inc( Addr2, Pitch2 * UInt32( Top1 - Top2 ) );
- end;
- case BPP of
- 1 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- if ( PByte( Addr1 )^ <> TransparentColor1 ) and ( PByte( Addr2 )^ <>
- TransparentColor2 ) then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1 );
- inc( Addr2 );
- end;
- inc( Addr1, Mod1 );
- inc( Addr2, Mod2 );
- end;
- 2 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- if ( PWord( Addr1 )^ <> TransparentColor1 ) and ( PWord( Addr2 )^ <>
- TransparentColor2 ) then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1, 2 );
- inc( Addr2, 2 );
- end;
- inc( Addr1, Mod1 );
- inc( Addr2, Mod2 );
- end;
- 3 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- Color1 := PLongWord( Addr1 )^ and $00FFFFFF;
- Color2 := PLongWord( Addr2 )^ and $00FFFFFF;
- if ( Color1 <> TransparentColor1 ) and ( Color2 <> TransparentColor2 )
- then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1, 3 );
- inc( Addr2, 3 );
- end;
- inc( Addr1, Mod1 );
- inc( Addr2, Mod2 );
- end;
- 4 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- if ( PLongWord( Addr1 )^ <> TransparentColor1 ) and ( PLongWord( Addr2 )^ <>
- TransparentColor2 ) then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1, 4 );
- inc( Addr2, 4 );
- end;
- inc( Addr1, Mod1 );
- inc( Addr2, Mod2 );
- end;
- end;
-end;
-
-procedure SDL_AddPixel( DstSurface : PSDL_Surface; x : cardinal; y : cardinal; Color :
- cardinal );
-var
- SrcColor : cardinal;
- Addr : PtrUInt;
- R, G, B : cardinal;
-begin
- if Color = 0 then
- exit;
- with DstSurface^ do
- begin
- Addr := PtrUInt( Pixels ) + y * Pitch + x * format.BytesPerPixel;
- SrcColor := PUInt32( Addr )^;
- case format.BitsPerPixel of
- 8 :
- begin
- R := SrcColor and $E0 + Color and $E0;
- G := SrcColor and $1C + Color and $1C;
- B := SrcColor and $03 + Color and $03;
- if R > $E0 then
- R := $E0;
- if G > $1C then
- G := $1C;
- if B > $03 then
- B := $03;
- PUInt8( Addr )^ := R or G or B;
- end;
- 15 :
- begin
- R := SrcColor and $7C00 + Color and $7C00;
- G := SrcColor and $03E0 + Color and $03E0;
- B := SrcColor and $001F + Color and $001F;
- if R > $7C00 then
- R := $7C00;
- if G > $03E0 then
- G := $03E0;
- if B > $001F then
- B := $001F;
- PUInt16( Addr )^ := R or G or B;
- end;
- 16 :
- begin
- R := SrcColor and $F800 + Color and $F800;
- G := SrcColor and $07C0 + Color and $07C0;
- B := SrcColor and $001F + Color and $001F;
- if R > $F800 then
- R := $F800;
- if G > $07C0 then
- G := $07C0;
- if B > $001F then
- B := $001F;
- PUInt16( Addr )^ := R or G or B;
- end;
- 24 :
- begin
- R := SrcColor and $00FF0000 + Color and $00FF0000;
- G := SrcColor and $0000FF00 + Color and $0000FF00;
- B := SrcColor and $000000FF + Color and $000000FF;
- if R > $FF0000 then
- R := $FF0000;
- if G > $00FF00 then
- G := $00FF00;
- if B > $0000FF then
- B := $0000FF;
- PUInt32( Addr )^ := SrcColor and $FF000000 or R or G or B;
- end;
- 32 :
- begin
- R := SrcColor and $00FF0000 + Color and $00FF0000;
- G := SrcColor and $0000FF00 + Color and $0000FF00;
- B := SrcColor and $000000FF + Color and $000000FF;
- if R > $FF0000 then
- R := $FF0000;
- if G > $00FF00 then
- G := $00FF00;
- if B > $0000FF then
- B := $0000FF;
- PUInt32( Addr )^ := R or G or B;
- end;
- end;
- end;
-end;
-
-procedure SDL_SubPixel( DstSurface : PSDL_Surface; x : cardinal; y : cardinal; Color :
- cardinal );
-var
- SrcColor : cardinal;
- Addr : PtrUInt;
- R, G, B : cardinal;
-begin
- if Color = 0 then
- exit;
- with DstSurface^ do
- begin
- Addr := PtrUInt( Pixels ) + y * Pitch + x * format.BytesPerPixel;
- SrcColor := PUInt32( Addr )^;
- case format.BitsPerPixel of
- 8 :
- begin
- R := SrcColor and $E0 - Color and $E0;
- G := SrcColor and $1C - Color and $1C;
- B := SrcColor and $03 - Color and $03;
- if R > $E0 then
- R := 0;
- if G > $1C then
- G := 0;
- if B > $03 then
- B := 0;
- PUInt8( Addr )^ := R or G or B;
- end;
- 15 :
- begin
- R := SrcColor and $7C00 - Color and $7C00;
- G := SrcColor and $03E0 - Color and $03E0;
- B := SrcColor and $001F - Color and $001F;
- if R > $7C00 then
- R := 0;
- if G > $03E0 then
- G := 0;
- if B > $001F then
- B := 0;
- PUInt16( Addr )^ := R or G or B;
- end;
- 16 :
- begin
- R := SrcColor and $F800 - Color and $F800;
- G := SrcColor and $07C0 - Color and $07C0;
- B := SrcColor and $001F - Color and $001F;
- if R > $F800 then
- R := 0;
- if G > $07C0 then
- G := 0;
- if B > $001F then
- B := 0;
- PUInt16( Addr )^ := R or G or B;
- end;
- 24 :
- begin
- R := SrcColor and $00FF0000 - Color and $00FF0000;
- G := SrcColor and $0000FF00 - Color and $0000FF00;
- B := SrcColor and $000000FF - Color and $000000FF;
- if R > $FF0000 then
- R := 0;
- if G > $00FF00 then
- G := 0;
- if B > $0000FF then
- B := 0;
- PUInt32( Addr )^ := SrcColor and $FF000000 or R or G or B;
- end;
- 32 :
- begin
- R := SrcColor and $00FF0000 - Color and $00FF0000;
- G := SrcColor and $0000FF00 - Color and $0000FF00;
- B := SrcColor and $000000FF - Color and $000000FF;
- if R > $FF0000 then
- R := 0;
- if G > $00FF00 then
- G := 0;
- if B > $0000FF then
- B := 0;
- PUInt32( Addr )^ := R or G or B;
- end;
- end;
- end;
-end;
-// This procedure works on 8, 15, 16, 24 and 32 bits color depth surfaces.
-// In 8 bit color depth mode the procedure works with the default packed
-// palette (RRRGGGBB). It handles all clipping.
-
-procedure SDL_AddSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-var
- R, G, B, Pixel1, Pixel2, TransparentColor : cardinal;
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr : PtrUInt;
- WorkX, WorkY : word;
- SrcMod, DestMod : cardinal;
- Bits : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DestSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DestSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- TransparentColor := Format.colorkey;
- end;
- with DestSurface^ do
- begin
- DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- Bits := Format.BitsPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DestSurface );
- WorkY := Src.h;
- case bits of
- 8 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt8( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt8( DestAddr )^;
- if Pixel2 > 0 then
- begin
- R := Pixel1 and $E0 + Pixel2 and $E0;
- G := Pixel1 and $1C + Pixel2 and $1C;
- B := Pixel1 and $03 + Pixel2 and $03;
- if R > $E0 then
- R := $E0;
- if G > $1C then
- G := $1C;
- if B > $03 then
- B := $03;
- PUInt8( DestAddr )^ := R or G or B;
- end
- else
- PUInt8( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr );
- inc( DestAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 15 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
- if Pixel2 > 0 then
- begin
- R := Pixel1 and $7C00 + Pixel2 and $7C00;
- G := Pixel1 and $03E0 + Pixel2 and $03E0;
- B := Pixel1 and $001F + Pixel2 and $001F;
- if R > $7C00 then
- R := $7C00;
- if G > $03E0 then
- G := $03E0;
- if B > $001F then
- B := $001F;
- PUInt16( DestAddr )^ := R or G or B;
- end
- else
- PUInt16( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 16 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
- if Pixel2 > 0 then
- begin
- R := Pixel1 and $F800 + Pixel2 and $F800;
- G := Pixel1 and $07E0 + Pixel2 and $07E0;
- B := Pixel1 and $001F + Pixel2 and $001F;
- if R > $F800 then
- R := $F800;
- if G > $07E0 then
- G := $07E0;
- if B > $001F then
- B := $001F;
- PUInt16( DestAddr )^ := R or G or B;
- end
- else
- PUInt16( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 24 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF;
- if Pixel2 > 0 then
- begin
- R := Pixel1 and $FF0000 + Pixel2 and $FF0000;
- G := Pixel1 and $00FF00 + Pixel2 and $00FF00;
- B := Pixel1 and $0000FF + Pixel2 and $0000FF;
- if R > $FF0000 then
- R := $FF0000;
- if G > $00FF00 then
- G := $00FF00;
- if B > $0000FF then
- B := $0000FF;
- PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or ( R or G or B );
- end
- else
- PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or Pixel1;
- end;
- inc( SrcAddr, 3 );
- inc( DestAddr, 3 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 32 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^;
- if Pixel2 > 0 then
- begin
- R := Pixel1 and $FF0000 + Pixel2 and $FF0000;
- G := Pixel1 and $00FF00 + Pixel2 and $00FF00;
- B := Pixel1 and $0000FF + Pixel2 and $0000FF;
- if R > $FF0000 then
- R := $FF0000;
- if G > $00FF00 then
- G := $00FF00;
- if B > $0000FF then
- B := $0000FF;
- PUInt32( DestAddr )^ := R or G or B;
- end
- else
- PUInt32( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr, 4 );
- inc( DestAddr, 4 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DestSurface );
-end;
-
-procedure SDL_SubSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-var
- R, G, B, Pixel1, Pixel2, TransparentColor : cardinal;
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr : PtrUInt;
-//{*_ebx, *}{*_esi, *}{*_edi, _esp*} : cardinal; // Auto Removed, Unused Variable (_ebx) // Auto Removed, Unused Variable (_esi) // Auto Removed, Unused Variable (_edi)
- WorkX, WorkY : word;
- SrcMod, DestMod : cardinal;
- Bits : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DestSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DestSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- TransparentColor := Format.colorkey;
- end;
- with DestSurface^ do
- begin
- DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- Bits := DestSurface.Format.BitsPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DestSurface );
- WorkY := Src.h;
- case bits of
- 8 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt8( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt8( DestAddr )^;
- if Pixel2 > 0 then
- begin
- R := Pixel2 and $E0 - Pixel1 and $E0;
- G := Pixel2 and $1C - Pixel1 and $1C;
- B := Pixel2 and $03 - Pixel1 and $03;
- if R > $E0 then
- R := 0;
- if G > $1C then
- G := 0;
- if B > $03 then
- B := 0;
- PUInt8( DestAddr )^ := R or G or B;
- end;
- end;
- inc( SrcAddr );
- inc( DestAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 15 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
- if Pixel2 > 0 then
- begin
- R := Pixel2 and $7C00 - Pixel1 and $7C00;
- G := Pixel2 and $03E0 - Pixel1 and $03E0;
- B := Pixel2 and $001F - Pixel1 and $001F;
- if R > $7C00 then
- R := 0;
- if G > $03E0 then
- G := 0;
- if B > $001F then
- B := 0;
- PUInt16( DestAddr )^ := R or G or B;
- end;
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 16 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
- if Pixel2 > 0 then
- begin
- R := Pixel2 and $F800 - Pixel1 and $F800;
- G := Pixel2 and $07E0 - Pixel1 and $07E0;
- B := Pixel2 and $001F - Pixel1 and $001F;
- if R > $F800 then
- R := 0;
- if G > $07E0 then
- G := 0;
- if B > $001F then
- B := 0;
- PUInt16( DestAddr )^ := R or G or B;
- end;
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 24 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF;
- if Pixel2 > 0 then
- begin
- R := Pixel2 and $FF0000 - Pixel1 and $FF0000;
- G := Pixel2 and $00FF00 - Pixel1 and $00FF00;
- B := Pixel2 and $0000FF - Pixel1 and $0000FF;
- if R > $FF0000 then
- R := 0;
- if G > $00FF00 then
- G := 0;
- if B > $0000FF then
- B := 0;
- PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or ( R or G or B );
- end;
- end;
- inc( SrcAddr, 3 );
- inc( DestAddr, 3 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 32 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^;
- if Pixel2 > 0 then
- begin
- R := Pixel2 and $FF0000 - Pixel1 and $FF0000;
- G := Pixel2 and $00FF00 - Pixel1 and $00FF00;
- B := Pixel2 and $0000FF - Pixel1 and $0000FF;
- if R > $FF0000 then
- R := 0;
- if G > $00FF00 then
- G := 0;
- if B > $0000FF then
- B := 0;
- PUInt32( DestAddr )^ := R or G or B;
- end
- else
- PUInt32( DestAddr )^ := Pixel2;
- end;
- inc( SrcAddr, 4 );
- inc( DestAddr, 4 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DestSurface );
-end;
-
-procedure SDL_MonoSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect; Color : cardinal );
-var
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr : PtrUInt;
-//{*_ebx, *}{*_esi, *}{*_edi, _esp*} : cardinal; // Auto Removed, Unused Variable (_ebx) // Auto Removed, Unused Variable (_esi) // Auto Removed, Unused Variable (_edi)
- WorkX, WorkY : word;
- SrcMod, DestMod : cardinal;
- TransparentColor, SrcColor : cardinal;
- BPP : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DestSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DestSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- TransparentColor := Format.colorkey;
- end;
- with DestSurface^ do
- begin
- DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- BPP := DestSurface.Format.BytesPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DestSurface );
- WorkY := Src.h;
- case BPP of
- 1 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- SrcColor := PUInt8( SrcAddr )^;
- if SrcColor <> TransparentColor then
- PUInt8( DestAddr )^ := SrcColor;
- inc( SrcAddr );
- inc( DestAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 2 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- SrcColor := PUInt16( SrcAddr )^;
- if SrcColor <> TransparentColor then
- PUInt16( DestAddr )^ := SrcColor;
- inc( SrcAddr );
- inc( DestAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 3 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- SrcColor := PUInt32( SrcAddr )^ and $FFFFFF;
- if SrcColor <> TransparentColor then
- PUInt32( DestAddr )^ := ( PUInt32( DestAddr )^ and $FFFFFF ) or SrcColor;
- inc( SrcAddr );
- inc( DestAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 4 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- SrcColor := PUInt32( SrcAddr )^;
- if SrcColor <> TransparentColor then
- PUInt32( DestAddr )^ := SrcColor;
- inc( SrcAddr );
- inc( DestAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DestSurface );
-end;
-// TextureRect.w and TextureRect.h are not used.
-// The TextureSurface's size MUST larger than the drawing rectangle!!!
-
-procedure SDL_TexturedSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect; Texture : PSDL_Surface;
- TextureRect : PSDL_Rect );
-var
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr, TextAddr : PtrUInt;
-//{*_ebx, *}{*_esi, *}{*_edi, _esp*}: cardinal; // Auto Removed, Unused Variable (_ebx) // Auto Removed, Unused Variable (_esi) // Auto Removed, Unused Variable (_edi)
- WorkX, WorkY : word;
- SrcMod, DestMod, TextMod : cardinal;
-SrcColor, TransparentColor{*, TextureColor*} : cardinal; // Auto Removed, Unused Variable (TextureColor)
- BPP : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DestSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DestSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- TransparentColor := format.colorkey;
- end;
- with DestSurface^ do
- begin
- DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- BPP := DestSurface.Format.BitsPerPixel;
- end;
- with Texture^ do
- begin
- TextAddr := PtrUInt( Pixels ) + UInt32( TextureRect.y ) * Pitch +
- UInt32( TextureRect.x ) * Format.BytesPerPixel;
- TextMod := Pitch - Src.w * Format.BytesPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DestSurface );
- SDL_LockSurface( Texture );
- WorkY := Src.h;
- case BPP of
- 1 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- SrcColor := PUInt8( SrcAddr )^;
- if SrcColor <> TransparentColor then
- PUInt8( DestAddr )^ := PUint8( TextAddr )^;
- inc( SrcAddr );
- inc( DestAddr );
- inc( TextAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- inc( TextAddr, TextMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 2 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- SrcColor := PUInt16( SrcAddr )^;
- if SrcColor <> TransparentColor then
- PUInt16( DestAddr )^ := PUInt16( TextAddr )^;
- inc( SrcAddr );
- inc( DestAddr );
- inc( TextAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- inc( TextAddr, TextMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 3 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- SrcColor := PUInt32( SrcAddr )^ and $FFFFFF;
- if SrcColor <> TransparentColor then
- PUInt32( DestAddr )^ := ( PUInt32( DestAddr )^ and $FFFFFF ) or ( PUInt32( TextAddr )^ and $FFFFFF );
- inc( SrcAddr );
- inc( DestAddr );
- inc( TextAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- inc( TextAddr, TextMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 4 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- SrcColor := PUInt32( SrcAddr )^;
- if SrcColor <> TransparentColor then
- PUInt32( DestAddr )^ := PUInt32( TextAddr )^;
- inc( SrcAddr );
- inc( DestAddr );
- inc( TextAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- inc( TextAddr, TextMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DestSurface );
- SDL_UnlockSurface( Texture );
-end;
-
-procedure SDL_ZoomSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; DstRect : PSDL_Rect );
-var
- xc, yc : cardinal;
- rx, wx, ry, wy, ry16 : cardinal;
- color : cardinal;
- modx, mody : cardinal;
-begin
- // Warning! No checks for surface pointers!!!
- if srcrect = nil then
- srcrect := @SrcSurface.clip_rect;
- if dstrect = nil then
- dstrect := @DstSurface.clip_rect;
- if SDL_MustLock( SrcSurface ) then
- SDL_LockSurface( SrcSurface );
- if SDL_MustLock( DstSurface ) then
- SDL_LockSurface( DstSurface );
- modx := trunc( ( srcrect.w / dstrect.w ) * 65536 );
- mody := trunc( ( srcrect.h / dstrect.h ) * 65536 );
- //rx := srcrect.x * 65536;
- ry := srcrect.y * 65536;
- wy := dstrect.y;
- for yc := 0 to dstrect.h - 1 do
- begin
- rx := srcrect.x * 65536;
- wx := dstrect.x;
- ry16 := ry shr 16;
- for xc := 0 to dstrect.w - 1 do
- begin
- color := SDL_GetPixel( SrcSurface, rx shr 16, ry16 );
- SDL_PutPixel( DstSurface, wx, wy, color );
- rx := rx + modx;
- inc( wx );
- end;
- ry := ry + mody;
- inc( wy );
- end;
- if SDL_MustLock( SrcSurface ) then
- SDL_UnlockSurface( SrcSurface );
- if SDL_MustLock( DstSurface ) then
- SDL_UnlockSurface( DstSurface );
-end;
-// Re-map a rectangular area into an area defined by four vertices
-// Converted from C to Pascal by KiCHY
-
-procedure SDL_WarpSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; UL, UR, LR, LL : PPoint );
-const
- SHIFTS = 15; // Extend ints to limit round-off error (try 2 - 20)
- THRESH = 1 shl SHIFTS; // Threshold for pixel size value
- procedure CopySourceToDest( UL, UR, LR, LL : TPoint; x1, y1, x2, y2 : cardinal );
- var
- tm, lm, rm, bm, m : TPoint;
- mx, my : cardinal;
- cr : cardinal;
- begin
- // Does the destination area specify a single pixel?
- if ( ( abs( ul.x - ur.x ) < THRESH ) and
- ( abs( ul.x - lr.x ) < THRESH ) and
- ( abs( ul.x - ll.x ) < THRESH ) and
- ( abs( ul.y - ur.y ) < THRESH ) and
- ( abs( ul.y - lr.y ) < THRESH ) and
- ( abs( ul.y - ll.y ) < THRESH ) ) then
- begin // Yes
- cr := SDL_GetPixel( SrcSurface, ( x1 shr SHIFTS ), ( y1 shr SHIFTS ) );
- SDL_PutPixel( DstSurface, ( ul.x shr SHIFTS ), ( ul.y shr SHIFTS ), cr );
- end
- else
- begin // No
- // Quarter the source and the destination, and then recurse
- tm.x := ( ul.x + ur.x ) shr 1;
- tm.y := ( ul.y + ur.y ) shr 1;
- bm.x := ( ll.x + lr.x ) shr 1;
- bm.y := ( ll.y + lr.y ) shr 1;
- lm.x := ( ul.x + ll.x ) shr 1;
- lm.y := ( ul.y + ll.y ) shr 1;
- rm.x := ( ur.x + lr.x ) shr 1;
- rm.y := ( ur.y + lr.y ) shr 1;
- m.x := ( tm.x + bm.x ) shr 1;
- m.y := ( tm.y + bm.y ) shr 1;
- mx := ( x1 + x2 ) shr 1;
- my := ( y1 + y2 ) shr 1;
- CopySourceToDest( ul, tm, m, lm, x1, y1, mx, my );
- CopySourceToDest( tm, ur, rm, m, mx, y1, x2, my );
- CopySourceToDest( m, rm, lr, bm, mx, my, x2, y2 );
- CopySourceToDest( lm, m, bm, ll, x1, my, mx, y2 );
- end;
- end;
-var
- _UL, _UR, _LR, _LL : TPoint;
- Rect_x, Rect_y, Rect_w, Rect_h : integer;
-begin
- if SDL_MustLock( SrcSurface ) then
- SDL_LockSurface( SrcSurface );
- if SDL_MustLock( DstSurface ) then
- SDL_LockSurface( DstSurface );
- if SrcRect = nil then
- begin
- Rect_x := 0;
- Rect_y := 0;
- Rect_w := ( SrcSurface.w - 1 ) shl SHIFTS;
- Rect_h := ( SrcSurface.h - 1 ) shl SHIFTS;
- end
- else
- begin
- Rect_x := SrcRect.x;
- Rect_y := SrcRect.y;
- Rect_w := ( SrcRect.w - 1 ) shl SHIFTS;
- Rect_h := ( SrcRect.h - 1 ) shl SHIFTS;
- end;
- // Shift all values to help reduce round-off error.
- _ul.x := ul.x shl SHIFTS;
- _ul.y := ul.y shl SHIFTS;
- _ur.x := ur.x shl SHIFTS;
- _ur.y := ur.y shl SHIFTS;
- _lr.x := lr.x shl SHIFTS;
- _lr.y := lr.y shl SHIFTS;
- _ll.x := ll.x shl SHIFTS;
- _ll.y := ll.y shl SHIFTS;
- CopySourceToDest( _ul, _ur, _lr, _ll, Rect_x, Rect_y, Rect_w, Rect_h );
- if SDL_MustLock( SrcSurface ) then
- SDL_UnlockSurface( SrcSurface );
- if SDL_MustLock( DstSurface ) then
- SDL_UnlockSurface( DstSurface );
-end;
-
-// Draw a line between x1,y1 and x2,y2 to the given surface
-// NOTE: The surface must be locked before calling this!
-
-procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal );
-var
- dx, dy, sdx, sdy, x, y, px, py : integer;
-begin
- dx := x2 - x1;
- dy := y2 - y1;
- if dx < 0 then
- sdx := -1
- else
- sdx := 1;
- if dy < 0 then
- sdy := -1
- else
- sdy := 1;
- dx := sdx * dx + 1;
- dy := sdy * dy + 1;
- x := 0;
- y := 0;
- px := x1;
- py := y1;
- if dx >= dy then
- begin
- for x := 0 to dx - 1 do
- begin
- SDL_PutPixel( DstSurface, px, py, Color );
- y := y + dy;
- if y >= dx then
- begin
- y := y - dx;
- py := py + sdy;
- end;
- px := px + sdx;
- end;
- end
- else
- begin
- for y := 0 to dy - 1 do
- begin
- SDL_PutPixel( DstSurface, px, py, Color );
- x := x + dx;
- if x >= dy then
- begin
- x := x - dy;
- px := px + sdx;
- end;
- py := py + sdy;
- end;
- end;
-end;
-
-// Draw a dashed line between x1,y1 and x2,y2 to the given surface
-// NOTE: The surface must be locked before calling this!
-
-procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal; DashLength, DashSpace : byte ); overload;
-var
- dx, dy, sdx, sdy, x, y, px, py, counter : integer; drawdash : boolean;
-begin
- counter := 0;
- drawdash := true; //begin line drawing with dash
-
- //Avoid invalid user-passed dash parameters
- if ( DashLength < 1 )
- then
- DashLength := 1;
- if ( DashSpace < 1 )
- then
- DashSpace := 0;
-
- dx := x2 - x1;
- dy := y2 - y1;
- if dx < 0 then
- sdx := -1
- else
- sdx := 1;
- if dy < 0 then
- sdy := -1
- else
- sdy := 1;
- dx := sdx * dx + 1;
- dy := sdy * dy + 1;
- x := 0;
- y := 0;
- px := x1;
- py := y1;
- if dx >= dy then
- begin
- for x := 0 to dx - 1 do
- begin
-
- //Alternate drawing dashes, or leaving spaces
- if drawdash then
- begin
- SDL_PutPixel( DstSurface, px, py, Color );
- inc( counter );
- if ( counter > DashLength - 1 ) and ( DashSpace > 0 ) then
- begin
- drawdash := false;
- counter := 0;
- end;
- end
- else //space
- begin
- inc( counter );
- if counter > DashSpace - 1 then
- begin
- drawdash := true;
- counter := 0;
- end;
- end;
-
- y := y + dy;
- if y >= dx then
- begin
- y := y - dx;
- py := py + sdy;
- end;
- px := px + sdx;
- end;
- end
- else
- begin
- for y := 0 to dy - 1 do
- begin
-
- //Alternate drawing dashes, or leaving spaces
- if drawdash then
- begin
- SDL_PutPixel( DstSurface, px, py, Color );
- inc( counter );
- if ( counter > DashLength - 1 ) and ( DashSpace > 0 ) then
- begin
- drawdash := false;
- counter := 0;
- end;
- end
- else //space
- begin
- inc( counter );
- if counter > DashSpace - 1 then
- begin
- drawdash := true;
- counter := 0;
- end;
- end;
-
- x := x + dx;
- if x >= dy then
- begin
- x := x - dy;
- px := px + sdx;
- end;
- py := py + sdy;
- end;
- end;
-end;
-
-procedure SDL_AddLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal );
-var
- dx, dy, sdx, sdy, x, y, px, py : integer;
-begin
- dx := x2 - x1;
- dy := y2 - y1;
- if dx < 0 then
- sdx := -1
- else
- sdx := 1;
- if dy < 0 then
- sdy := -1
- else
- sdy := 1;
- dx := sdx * dx + 1;
- dy := sdy * dy + 1;
- x := 0;
- y := 0;
- px := x1;
- py := y1;
- if dx >= dy then
- begin
- for x := 0 to dx - 1 do
- begin
- SDL_AddPixel( DstSurface, px, py, Color );
- y := y + dy;
- if y >= dx then
- begin
- y := y - dx;
- py := py + sdy;
- end;
- px := px + sdx;
- end;
- end
- else
- begin
- for y := 0 to dy - 1 do
- begin
- SDL_AddPixel( DstSurface, px, py, Color );
- x := x + dx;
- if x >= dy then
- begin
- x := x - dy;
- px := px + sdx;
- end;
- py := py + sdy;
- end;
- end;
-end;
-
-procedure SDL_SubLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color :
- cardinal );
-var
- dx, dy, sdx, sdy, x, y, px, py : integer;
-begin
- dx := x2 - x1;
- dy := y2 - y1;
- if dx < 0 then
- sdx := -1
- else
- sdx := 1;
- if dy < 0 then
- sdy := -1
- else
- sdy := 1;
- dx := sdx * dx + 1;
- dy := sdy * dy + 1;
- x := 0;
- y := 0;
- px := x1;
- py := y1;
- if dx >= dy then
- begin
- for x := 0 to dx - 1 do
- begin
- SDL_SubPixel( DstSurface, px, py, Color );
- y := y + dy;
- if y >= dx then
- begin
- y := y - dx;
- py := py + sdy;
- end;
- px := px + sdx;
- end;
- end
- else
- begin
- for y := 0 to dy - 1 do
- begin
- SDL_SubPixel( DstSurface, px, py, Color );
- x := x + dx;
- if x >= dy then
- begin
- x := x - dy;
- px := px + sdx;
- end;
- py := py + sdy;
- end;
- end;
-end;
-
-// flips a rectangle vertically on given surface
-
-procedure SDL_FlipRectV( DstSurface : PSDL_Surface; Rect : PSDL_Rect );
-var
- TmpRect : TSDL_Rect;
- Locked : boolean;
- y, FlipLength, RowLength : integer;
- Row1, Row2 : Pointer;
- OneRow : TByteArray; // Optimize it if you wish
-begin
- if DstSurface <> nil then
- begin
- if Rect = nil then
- begin // if Rect=nil then we flip the whole surface
- TmpRect := SDLRect( 0, 0, DstSurface.w, DstSurface.h );
- Rect := @TmpRect;
- end;
- FlipLength := Rect^.h shr 1 - 1;
- RowLength := Rect^.w * DstSurface^.format.BytesPerPixel;
- if SDL_MustLock( DstSurface ) then
- begin
- Locked := true;
- SDL_LockSurface( DstSurface );
- end
- else
- Locked := false;
- Row1 := pointer( PtrUInt( DstSurface^.Pixels ) + UInt32( Rect^.y ) *
- DstSurface^.Pitch );
- Row2 := pointer( PtrUInt( DstSurface^.Pixels ) + ( UInt32( Rect^.y ) + Rect^.h - 1 )
- * DstSurface^.Pitch );
- for y := 0 to FlipLength do
- begin
- Move( Row1^, OneRow, RowLength );
- Move( Row2^, Row1^, RowLength );
- Move( OneRow, Row2^, RowLength );
- inc( PtrUInt( Row1 ), DstSurface^.Pitch );
- dec( PtrUInt( Row2 ), DstSurface^.Pitch );
- end;
- if Locked then
- SDL_UnlockSurface( DstSurface );
- end;
-end;
-
-// flips a rectangle horizontally on given surface
-
-procedure SDL_FlipRectH( DstSurface : PSDL_Surface; Rect : PSDL_Rect );
-type
- T24bit = packed array[ 0..2 ] of byte;
- T24bitArray = packed array[ 0..8191 ] of T24bit;
- P24bitArray = ^T24bitArray;
- TLongWordArray = array[ 0..8191 ] of LongWord;
- PLongWordArray = ^TLongWordArray;
-var
- TmpRect : TSDL_Rect;
- Row8bit : PByteArray;
- Row16bit : PWordArray;
- Row24bit : P24bitArray;
- Row32bit : PLongWordArray;
- y, x, RightSide, FlipLength : integer;
- Pixel : cardinal;
- Pixel24 : T24bit;
- Locked : boolean;
-begin
- if DstSurface <> nil then
- begin
- if Rect = nil then
- begin
- TmpRect := SDLRect( 0, 0, DstSurface.w, DstSurface.h );
- Rect := @TmpRect;
- end;
- FlipLength := Rect^.w shr 1 - 1;
- if SDL_MustLock( DstSurface ) then
- begin
- Locked := true;
- SDL_LockSurface( DstSurface );
- end
- else
- Locked := false;
- case DstSurface^.format.BytesPerPixel of
- 1 :
- begin
- Row8Bit := pointer( PtrUInt( DstSurface^.pixels ) + UInt32( Rect^.y ) *
- DstSurface^.pitch );
- for y := 1 to Rect^.h do
- begin
- RightSide := Rect^.w - 1;
- for x := 0 to FlipLength do
- begin
- Pixel := Row8Bit^[ x ];
- Row8Bit^[ x ] := Row8Bit^[ RightSide ];
- Row8Bit^[ RightSide ] := Pixel;
- dec( RightSide );
- end;
- inc( PtrUInt( Row8Bit ), DstSurface^.pitch );
- end;
- end;
- 2 :
- begin
- Row16Bit := pointer( PtrUInt( DstSurface^.pixels ) + UInt32( Rect^.y ) *
- DstSurface^.pitch );
- for y := 1 to Rect^.h do
- begin
- RightSide := Rect^.w - 1;
- for x := 0 to FlipLength do
- begin
- Pixel := Row16Bit^[ x ];
- Row16Bit^[ x ] := Row16Bit^[ RightSide ];
- Row16Bit^[ RightSide ] := Pixel;
- dec( RightSide );
- end;
- inc( PtrUInt( Row16Bit ), DstSurface^.pitch );
- end;
- end;
- 3 :
- begin
- Row24Bit := pointer( PtrUInt( DstSurface^.pixels ) + UInt32( Rect^.y ) *
- DstSurface^.pitch );
- for y := 1 to Rect^.h do
- begin
- RightSide := Rect^.w - 1;
- for x := 0 to FlipLength do
- begin
- Pixel24 := Row24Bit^[ x ];
- Row24Bit^[ x ] := Row24Bit^[ RightSide ];
- Row24Bit^[ RightSide ] := Pixel24;
- dec( RightSide );
- end;
- inc( PtrUInt( Row24Bit ), DstSurface^.pitch );
- end;
- end;
- 4 :
- begin
- Row32Bit := pointer( PtrUInt( DstSurface^.pixels ) + UInt32( Rect^.y ) *
- DstSurface^.pitch );
- for y := 1 to Rect^.h do
- begin
- RightSide := Rect^.w - 1;
- for x := 0 to FlipLength do
- begin
- Pixel := Row32Bit^[ x ];
- Row32Bit^[ x ] := Row32Bit^[ RightSide ];
- Row32Bit^[ RightSide ] := Pixel;
- dec( RightSide );
- end;
- inc( PtrUInt( Row32Bit ), DstSurface^.pitch );
- end;
- end;
- end;
- if Locked then
- SDL_UnlockSurface( DstSurface );
- end;
-end;
-
-// Use with caution! The procedure allocates memory for TSDL_Rect and return with its pointer.
-// But you MUST free it after you don't need it anymore!!!
-
-function PSDLRect( aLeft, aTop, aWidth, aHeight : integer ) : PSDL_Rect;
-var
- Rect : PSDL_Rect;
-begin
- New( Rect );
- with Rect^ do
- begin
- x := aLeft;
- y := aTop;
- w := aWidth;
- h := aHeight;
- end;
- Result := Rect;
-end;
-
-function SDLRect( aLeft, aTop, aWidth, aHeight : integer ) : TSDL_Rect;
-begin
- with result do
- begin
- x := aLeft;
- y := aTop;
- w := aWidth;
- h := aHeight;
- end;
-end;
-
-function SDLRect( aRect : TRect ) : TSDL_Rect;
-begin
- with aRect do
- result := SDLRect( Left, Top, Right - Left, Bottom - Top );
-end;
-
-procedure SDL_Stretch8( Surface, Dst_Surface : PSDL_Surface; x1, x2, y1, y2, yr, yw,
- depth : integer );
-var
- dx, dy, e, d, dx2 : integer;
- src_pitch, dst_pitch : uint16;
- src_pixels, dst_pixels : PUint8;
-begin
- if ( yw >= dst_surface^.h ) then
- exit;
- dx := ( x2 - x1 );
- dy := ( y2 - y1 );
- dy := dy shl 1;
- e := dy - dx;
- dx2 := dx shl 1;
- src_pitch := Surface^.pitch;
- dst_pitch := dst_surface^.pitch;
- src_pixels := PUint8( PtrUInt( Surface^.pixels ) + yr * src_pitch + y1 * depth );
- dst_pixels := PUint8( PtrUInt( dst_surface^.pixels ) + yw * dst_pitch + x1 *
- depth );
- for d := 0 to dx - 1 do
- begin
- move( src_pixels^, dst_pixels^, depth );
- while ( e >= 0 ) do
- begin
- inc( src_pixels, depth );
- e := e - dx2;
- end;
- inc( dst_pixels, depth );
- e := e + dy;
- end;
-end;
-
-function sign( x : integer ) : integer;
-begin
- if x > 0 then
- result := 1
- else
- result := -1;
-end;
-
-// Stretches a part of a surface
-
-function SDL_ScaleSurfaceRect( SrcSurface : PSDL_Surface; SrcX1, SrcY1, SrcW, SrcH,
- Width, Height : integer ) : PSDL_Surface;
-var
- dst_surface : PSDL_Surface;
- dx, dy, e, d, dx2, srcx2, srcy2 : integer;
- destx1, desty1 : integer;
-begin
- srcx2 := srcx1 + SrcW;
- srcy2 := srcy1 + SrcH;
- result := nil;
- destx1 := 0;
- desty1 := 0;
- dx := abs( integer( Height - desty1 ) );
- dy := abs( integer( SrcY2 - SrcY1 ) );
- e := ( dy shl 1 ) - dx;
- dx2 := dx shl 1;
- dy := dy shl 1;
- dst_surface := SDL_CreateRGBSurface( SDL_HWPALETTE, width - destx1, Height -
- desty1,
- SrcSurface^.Format^.BitsPerPixel,
- SrcSurface^.Format^.RMask,
- SrcSurface^.Format^.GMask,
- SrcSurface^.Format^.BMask,
- SrcSurface^.Format^.AMask );
- if ( dst_surface^.format^.BytesPerPixel = 1 ) then
- SDL_SetColors( dst_surface, @SrcSurface^.format^.palette^.colors^[ 0 ], 0, 256 );
- SDL_SetColorKey( dst_surface, sdl_srccolorkey, SrcSurface^.format^.colorkey );
- if ( SDL_MustLock( dst_surface ) ) then
- if ( SDL_LockSurface( dst_surface ) < 0 ) then
- exit;
- for d := 0 to dx - 1 do
- begin
- SDL_Stretch8( SrcSurface, dst_surface, destx1, Width, SrcX1, SrcX2, SrcY1, desty1,
- SrcSurface^.format^.BytesPerPixel );
- while e >= 0 do
- begin
- inc( SrcY1 );
- e := e - dx2;
- end;
- inc( desty1 );
- e := e + dy;
- end;
- if SDL_MUSTLOCK( dst_surface ) then
- SDL_UnlockSurface( dst_surface );
- result := dst_surface;
-end;
-
-procedure SDL_MoveLine( Surface : PSDL_Surface; x1, x2, y1, xofs, depth : integer );
-var
- src_pixels, dst_pixels : PUint8;
- i : integer;
-begin
- src_pixels := PUint8( PtrUInt( Surface^.pixels ) + Surface^.w * y1 * depth + x2 *
- depth );
- dst_pixels := PUint8( PtrUInt( Surface^.pixels ) + Surface^.w * y1 * depth + ( x2
- + xofs ) * depth );
- for i := x2 downto x1 do
- begin
- move( src_pixels^, dst_pixels^, depth );
- dec( src_pixels );
- dec( dst_pixels );
- end;
-end;
-{ Return the pixel value at (x, y)
-NOTE: The surface must be locked before calling this! }
-
-function SDL_GetPixel( SrcSurface : PSDL_Surface; x : integer; y : integer ) : Uint32;
-var
- bpp : UInt32;
- p : PInteger;
-begin
- bpp := SrcSurface.format.BytesPerPixel;
- // Here p is the address to the pixel we want to retrieve
- p := Pointer( PtrUInt( SrcSurface.pixels ) + UInt32( y ) * SrcSurface.pitch + UInt32( x ) *
- bpp );
- case bpp of
- 1 : result := PUint8( p )^;
- 2 : result := PUint16( p )^;
- 3 :
- if ( SDL_BYTEORDER = SDL_BIG_ENDIAN ) then
- result := PUInt8Array( p )[ 0 ] shl 16 or PUInt8Array( p )[ 1 ] shl 8 or
- PUInt8Array( p )[ 2 ]
- else
- result := PUInt8Array( p )[ 0 ] or PUInt8Array( p )[ 1 ] shl 8 or
- PUInt8Array( p )[ 2 ] shl 16;
- 4 : result := PUint32( p )^;
- else
- result := 0; // shouldn't happen, but avoids warnings
- end;
-end;
-{ Set the pixel at (x, y) to the given value
- NOTE: The surface must be locked before calling this! }
-
-procedure SDL_PutPixel( DstSurface : PSDL_Surface; x : integer; y : integer; pixel :
- Uint32 );
-var
- bpp : UInt32;
- p : PInteger;
-begin
- bpp := DstSurface.format.BytesPerPixel;
- p := Pointer( PtrUInt( DstSurface.pixels ) + UInt32( y ) * DstSurface.pitch + UInt32( x )
- * bpp );
- case bpp of
- 1 : PUint8( p )^ := pixel;
- 2 : PUint16( p )^ := pixel;
- 3 :
- if ( SDL_BYTEORDER = SDL_BIG_ENDIAN ) then
- begin
- PUInt8Array( p )[ 0 ] := ( pixel shr 16 ) and $FF;
- PUInt8Array( p )[ 1 ] := ( pixel shr 8 ) and $FF;
- PUInt8Array( p )[ 2 ] := pixel and $FF;
- end
- else
- begin
- PUInt8Array( p )[ 0 ] := pixel and $FF;
- PUInt8Array( p )[ 1 ] := ( pixel shr 8 ) and $FF;
- PUInt8Array( p )[ 2 ] := ( pixel shr 16 ) and $FF;
- end;
- 4 :
- PUint32( p )^ := pixel;
- end;
-end;
-
-procedure SDL_ScrollY( DstSurface : PSDL_Surface; DifY : integer );
-var
- r1, r2 : TSDL_Rect;
- //buffer: PSDL_Surface;
- YPos : Integer;
-begin
- if ( DstSurface <> nil ) and ( DifY <> 0 ) then
- begin
- //if DifY > 0 then // going up
- //begin
- ypos := 0;
- r1.x := 0;
- r2.x := 0;
- r1.w := DstSurface.w;
- r2.w := DstSurface.w;
- r1.h := DifY;
- r2.h := DifY;
- while ypos < DstSurface.h do
- begin
- r1.y := ypos;
- r2.y := ypos + DifY;
- SDL_BlitSurface( DstSurface, @r2, DstSurface, @r1 );
- ypos := ypos + DifY;
- end;
- //end
- //else
- //begin // Going Down
- //end;
- end;
-end;
-
-{procedure SDL_ScrollY(Surface: PSDL_Surface; DifY: integer);
-var
- r1, r2: TSDL_Rect;
- buffer: PSDL_Surface;
-begin
- if (Surface <> nil) and (Dify <> 0) then
- begin
- buffer := SDL_CreateRGBSurface(SDL_HWSURFACE, (Surface^.w - DifY) * 2,
- Surface^.h * 2,
- Surface^.Format^.BitsPerPixel, 0, 0, 0, 0);
- if buffer <> nil then
- begin
- if (buffer^.format^.BytesPerPixel = 1) then
- SDL_SetColors(buffer, @Surface^.format^.palette^.colors^[0], 0, 256);
- r1 := SDLRect(0, DifY, buffer^.w, buffer^.h);
- r2 := SDLRect(0, 0, buffer^.w, buffer^.h);
- SDL_BlitSurface(Surface, @r1, buffer, @r2);
- SDL_BlitSurface(buffer, @r2, Surface, @r2);
- SDL_FreeSurface(buffer);
- end;
- end;
-end;}
-
-procedure SDL_ScrollX( DstSurface : PSDL_Surface; DifX : integer );
-var
- r1, r2 : TSDL_Rect;
- buffer : PSDL_Surface;
-begin
- if ( DstSurface <> nil ) and ( DifX <> 0 ) then
- begin
- buffer := SDL_CreateRGBSurface( SDL_HWSURFACE, ( DstSurface^.w - DifX ) * 2,
- DstSurface^.h * 2,
- DstSurface^.Format^.BitsPerPixel,
- DstSurface^.Format^.RMask,
- DstSurface^.Format^.GMask,
- DstSurface^.Format^.BMask,
- DstSurface^.Format^.AMask );
- if buffer <> nil then
- begin
- if ( buffer^.format^.BytesPerPixel = 1 ) then
- SDL_SetColors( buffer, @DstSurface^.format^.palette^.colors^[ 0 ], 0, 256 );
- r1 := SDLRect( DifX, 0, buffer^.w, buffer^.h );
- r2 := SDLRect( 0, 0, buffer^.w, buffer^.h );
- SDL_BlitSurface( DstSurface, @r1, buffer, @r2 );
- SDL_BlitSurface( buffer, @r2, DstSurface, @r2 );
- SDL_FreeSurface( buffer );
- end;
- end;
-end;
-
-procedure SDL_RotateRad( DstSurface, SrcSurface : PSDL_Surface; SrcRect :
- PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Single );
-var
- aSin, aCos : Single;
- MX, MY, DX, DY, NX, NY, SX, SY, OX, OY, Width, Height, TX, TY, RX, RY, ROX, ROY : Integer;
- Colour, TempTransparentColour : UInt32;
- MAXX, MAXY : Integer;
-begin
- // Rotate the surface to the target surface.
- TempTransparentColour := SrcSurface.format.colorkey;
- {if srcRect.w > srcRect.h then
- begin
- Width := srcRect.w;
- Height := srcRect.w;
- end
- else
- begin
- Width := srcRect.h;
- Height := srcRect.h;
- end; }
-
- maxx := DstSurface.w;
- maxy := DstSurface.h;
- aCos := cos( Angle );
- aSin := sin( Angle );
-
- Width := round( abs( srcrect.h * acos ) + abs( srcrect.w * asin ) );
- Height := round( abs( srcrect.h * asin ) + abs( srcrect.w * acos ) );
-
- OX := Width div 2;
- OY := Height div 2; ;
- MX := ( srcRect.x + ( srcRect.x + srcRect.w ) ) div 2;
- MY := ( srcRect.y + ( srcRect.y + srcRect.h ) ) div 2;
- ROX := ( -( srcRect.w div 2 ) ) + Offsetx;
- ROY := ( -( srcRect.h div 2 ) ) + OffsetY;
- Tx := ox + round( ROX * aSin - ROY * aCos );
- Ty := oy + round( ROY * aSin + ROX * aCos );
- SX := 0;
- for DX := DestX - TX to DestX - TX + ( width ) do
- begin
- Inc( SX );
- SY := 0;
- for DY := DestY - TY to DestY - TY + ( Height ) do
- begin
- RX := SX - OX;
- RY := SY - OY;
- NX := round( mx + RX * aSin + RY * aCos ); //
- NY := round( my + RY * aSin - RX * aCos ); //
- // Used for testing only
- //SDL_PutPixel(DestSurface.SDLSurfacePointer,DX,DY,0);
- if ( ( DX > 0 ) and ( DX < MAXX ) ) and ( ( DY > 0 ) and ( DY < MAXY ) ) then
- begin
- if ( NX >= srcRect.x ) and ( NX <= srcRect.x + srcRect.w ) then
- begin
- if ( NY >= srcRect.y ) and ( NY <= srcRect.y + srcRect.h ) then
- begin
- Colour := SDL_GetPixel( SrcSurface, NX, NY );
- if Colour <> TempTransparentColour then
- begin
- SDL_PutPixel( DstSurface, DX, DY, Colour );
- end;
- end;
- end;
- end;
- inc( SY );
- end;
- end;
-end;
-
-procedure SDL_RotateDeg( DstSurface, SrcSurface : PSDL_Surface; SrcRect :
- PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Integer );
-begin
- SDL_RotateRad( DstSurface, SrcSurface, SrcRect, DestX, DestY, OffsetX, OffsetY, DegToRad( Angle ) );
-end;
-
-function ValidateSurfaceRect( DstSurface : PSDL_Surface; dstrect : PSDL_Rect ) : TSDL_Rect;
-var
- RealRect : TSDL_Rect;
- OutOfRange : Boolean;
-begin
- OutOfRange := false;
- if dstrect = nil then
- begin
- RealRect.x := 0;
- RealRect.y := 0;
- RealRect.w := DstSurface.w;
- RealRect.h := DstSurface.h;
- end
- else
- begin
- if dstrect.x < DstSurface.w then
- begin
- RealRect.x := dstrect.x;
- end
- else if dstrect.x < 0 then
- begin
- realrect.x := 0;
- end
- else
- begin
- OutOfRange := True;
- end;
- if dstrect.y < DstSurface.h then
- begin
- RealRect.y := dstrect.y;
- end
- else if dstrect.y < 0 then
- begin
- realrect.y := 0;
- end
- else
- begin
- OutOfRange := True;
- end;
- if OutOfRange = False then
- begin
- if realrect.x + dstrect.w <= DstSurface.w then
- begin
- RealRect.w := dstrect.w;
- end
- else
- begin
- RealRect.w := dstrect.w - realrect.x;
- end;
- if realrect.y + dstrect.h <= DstSurface.h then
- begin
- RealRect.h := dstrect.h;
- end
- else
- begin
- RealRect.h := dstrect.h - realrect.y;
- end;
- end;
- end;
- if OutOfRange = False then
- begin
- result := realrect;
- end
- else
- begin
- realrect.w := 0;
- realrect.h := 0;
- realrect.x := 0;
- realrect.y := 0;
- result := realrect;
- end;
-end;
-
-procedure SDL_FillRectAdd( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 );
-var
- RealRect : TSDL_Rect;
- Addr : pointer;
- ModX, BPP : cardinal;
- x, y, R, G, B, SrcColor : cardinal;
-begin
- RealRect := ValidateSurfaceRect( DstSurface, DstRect );
- if ( RealRect.w > 0 ) and ( RealRect.h > 0 ) then
- begin
- SDL_LockSurface( DstSurface );
- BPP := DstSurface.format.BytesPerPixel;
- with DstSurface^ do
- begin
- Addr := pointer( PtrUInt( pixels ) + UInt32( RealRect.y ) * pitch + UInt32( RealRect.x ) * BPP );
- ModX := Pitch - UInt32( RealRect.w ) * BPP;
- end;
- case DstSurface.format.BitsPerPixel of
- 8 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $E0 + Color and $E0;
- G := SrcColor and $1C + Color and $1C;
- B := SrcColor and $03 + Color and $03;
- if R > $E0 then
- R := $E0;
- if G > $1C then
- G := $1C;
- if B > $03 then
- B := $03;
- PUInt8( Addr )^ := R or G or B;
- inc( PtrUInt( Addr ), BPP );
- end;
- inc( PtrUInt( Addr ), ModX );
- end;
- end;
- 15 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $7C00 + Color and $7C00;
- G := SrcColor and $03E0 + Color and $03E0;
- B := SrcColor and $001F + Color and $001F;
- if R > $7C00 then
- R := $7C00;
- if G > $03E0 then
- G := $03E0;
- if B > $001F then
- B := $001F;
- PUInt16( Addr )^ := R or G or B;
- inc( PtrUInt( Addr ), BPP );
- end;
- inc( PtrUInt( Addr ), ModX );
- end;
- end;
- 16 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $F800 + Color and $F800;
- G := SrcColor and $07C0 + Color and $07C0;
- B := SrcColor and $001F + Color and $001F;
- if R > $F800 then
- R := $F800;
- if G > $07C0 then
- G := $07C0;
- if B > $001F then
- B := $001F;
- PUInt16( Addr )^ := R or G or B;
- inc( PtrUInt( Addr ), BPP );
- end;
- inc( PtrUInt( Addr ), ModX );
- end;
- end;
- 24 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $00FF0000 + Color and $00FF0000;
- G := SrcColor and $0000FF00 + Color and $0000FF00;
- B := SrcColor and $000000FF + Color and $000000FF;
- if R > $FF0000 then
- R := $FF0000;
- if G > $00FF00 then
- G := $00FF00;
- if B > $0000FF then
- B := $0000FF;
- PUInt32( Addr )^ := SrcColor and $FF000000 or R or G or B;
- inc( PtrUInt( Addr ), BPP );
- end;
- inc( PtrUInt( Addr ), ModX );
- end;
- end;
- 32 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $00FF0000 + Color and $00FF0000;
- G := SrcColor and $0000FF00 + Color and $0000FF00;
- B := SrcColor and $000000FF + Color and $000000FF;
- if R > $FF0000 then
- R := $FF0000;
- if G > $00FF00 then
- G := $00FF00;
- if B > $0000FF then
- B := $0000FF;
- PUInt32( Addr )^ := R or G or B;
- inc( PtrUInt( Addr ), BPP );
- end;
- inc( PtrUInt( Addr ), ModX );
- end;
- end;
- end;
- SDL_UnlockSurface( DstSurface );
- end;
-end;
-
-procedure SDL_FillRectSub( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 );
-var
- RealRect : TSDL_Rect;
- Addr : pointer;
- ModX, BPP : cardinal;
- x, y, R, G, B, SrcColor : cardinal;
-begin
- RealRect := ValidateSurfaceRect( DstSurface, DstRect );
- if ( RealRect.w > 0 ) and ( RealRect.h > 0 ) then
- begin
- SDL_LockSurface( DstSurface );
- BPP := DstSurface.format.BytesPerPixel;
- with DstSurface^ do
- begin
- Addr := pointer( PtrUInt( pixels ) + UInt32( RealRect.y ) * pitch + UInt32( RealRect.x ) * BPP );
- ModX := Pitch - UInt32( RealRect.w ) * BPP;
- end;
- case DstSurface.format.BitsPerPixel of
- 8 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $E0 - Color and $E0;
- G := SrcColor and $1C - Color and $1C;
- B := SrcColor and $03 - Color and $03;
- if R > $E0 then
- R := 0;
- if G > $1C then
- G := 0;
- if B > $03 then
- B := 0;
- PUInt8( Addr )^ := R or G or B;
- inc( PtrUInt( Addr ), BPP );
- end;
- inc( PtrUInt( Addr ), ModX );
- end;
- end;
- 15 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $7C00 - Color and $7C00;
- G := SrcColor and $03E0 - Color and $03E0;
- B := SrcColor and $001F - Color and $001F;
- if R > $7C00 then
- R := 0;
- if G > $03E0 then
- G := 0;
- if B > $001F then
- B := 0;
- PUInt16( Addr )^ := R or G or B;
- inc( PtrUInt( Addr ), BPP );
- end;
- inc( PtrUInt( Addr ), ModX );
- end;
- end;
- 16 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $F800 - Color and $F800;
- G := SrcColor and $07C0 - Color and $07C0;
- B := SrcColor and $001F - Color and $001F;
- if R > $F800 then
- R := 0;
- if G > $07C0 then
- G := 0;
- if B > $001F then
- B := 0;
- PUInt16( Addr )^ := R or G or B;
- inc( PtrUInt( Addr ), BPP );
- end;
- inc( PtrUInt( Addr ), ModX );
- end;
- end;
- 24 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $00FF0000 - Color and $00FF0000;
- G := SrcColor and $0000FF00 - Color and $0000FF00;
- B := SrcColor and $000000FF - Color and $000000FF;
- if R > $FF0000 then
- R := 0;
- if G > $00FF00 then
- G := 0;
- if B > $0000FF then
- B := 0;
- PUInt32( Addr )^ := SrcColor and $FF000000 or R or G or B;
- inc( PtrUInt( Addr ), BPP );
- end;
- inc( PtrUInt( Addr ), ModX );
- end;
- end;
- 32 :
- begin
- for y := 0 to RealRect.h - 1 do
- begin
- for x := 0 to RealRect.w - 1 do
- begin
- SrcColor := PUInt32( Addr )^;
- R := SrcColor and $00FF0000 - Color and $00FF0000;
- G := SrcColor and $0000FF00 - Color and $0000FF00;
- B := SrcColor and $000000FF - Color and $000000FF;
- if R > $FF0000 then
- R := 0;
- if G > $00FF00 then
- G := 0;
- if B > $0000FF then
- B := 0;
- PUInt32( Addr )^ := R or G or B;
- inc( PtrUInt( Addr ), BPP );
- end;
- inc( PtrUInt( Addr ), ModX );
- end;
- end;
- end;
- SDL_UnlockSurface( DstSurface );
- end;
-end;
-
-procedure SDL_GradientFillRect( DstSurface : PSDL_Surface; const Rect : PSDL_Rect; const StartColor, EndColor : TSDL_Color; const Style : TGradientStyle );
-var
- FBC : array[ 0..255 ] of Cardinal;
- // temp vars
- i, YR, YG, YB, SR, SG, SB, DR, DG, DB : Integer;
-
- TempStepV, TempStepH : Single;
- TempLeft, TempTop, TempHeight, TempWidth : integer;
- TempRect : TSDL_Rect;
-
-begin
- // calc FBC
- YR := StartColor.r;
- YG := StartColor.g;
- YB := StartColor.b;
- SR := YR;
- SG := YG;
- SB := YB;
- DR := EndColor.r - SR;
- DG := EndColor.g - SG;
- DB := EndColor.b - SB;
-
- for i := 0 to 255 do
- begin
- FBC[ i ] := SDL_MapRGB( DstSurface.format, YR, YG, YB );
- YR := SR + round( DR / 255 * i );
- YG := SG + round( DG / 255 * i );
- YB := SB + round( DB / 255 * i );
- end;
-
- // if aStyle = 1 then begin
- TempStepH := Rect.w / 255;
- TempStepV := Rect.h / 255;
- TempHeight := Trunc( TempStepV + 1 );
- TempWidth := Trunc( TempStepH + 1 );
- TempTop := 0;
- TempLeft := 0;
- TempRect.x := Rect.x;
- TempRect.y := Rect.y;
- TempRect.h := Rect.h;
- TempRect.w := Rect.w;
-
- case Style of
- gsHorizontal :
- begin
- TempRect.h := TempHeight;
- for i := 0 to 255 do
- begin
- TempRect.y := Rect.y + TempTop;
- SDL_FillRect( DstSurface, @TempRect, FBC[ i ] );
- TempTop := Trunc( TempStepV * i );
- end;
- end;
- gsVertical :
- begin
- TempRect.w := TempWidth;
- for i := 0 to 255 do
- begin
- TempRect.x := Rect.x + TempLeft;
- SDL_FillRect( DstSurface, @TempRect, FBC[ i ] );
- TempLeft := Trunc( TempStepH * i );
- end;
- end;
- end;
-end;
-
-procedure SDL_2xBlit( Src, Dest : PSDL_Surface );
-var
- ReadAddr, WriteAddr, ReadRow, WriteRow : PtrUInt;
- SrcPitch, DestPitch, x, y : UInt32;
-begin
- if ( Src = nil ) or ( Dest = nil ) then
- exit;
- if ( Src.w shl 1 ) < Dest.w then
- exit;
- if ( Src.h shl 1 ) < Dest.h then
- exit;
-
- if SDL_MustLock( Src ) then
- SDL_LockSurface( Src );
- if SDL_MustLock( Dest ) then
- SDL_LockSurface( Dest );
-
- ReadRow := PtrUInt( Src.Pixels );
- WriteRow := PtrUInt( Dest.Pixels );
-
- SrcPitch := Src.pitch;
- DestPitch := Dest.pitch;
-
- case Src.format.BytesPerPixel of
- 1 : for y := 1 to Src.h do
- begin
- ReadAddr := ReadRow;
- WriteAddr := WriteRow;
- for x := 1 to Src.w do
- begin
- PUInt8( WriteAddr )^ := PUInt8( ReadAddr )^;
- PUInt8( WriteAddr + 1 )^ := PUInt8( ReadAddr )^;
- PUInt8( WriteAddr + DestPitch )^ := PUInt8( ReadAddr )^;
- PUInt8( WriteAddr + DestPitch + 1 )^ := PUInt8( ReadAddr )^;
- inc( ReadAddr );
- inc( WriteAddr, 2 );
- end;
- inc( PtrUInt( ReadRow ), SrcPitch );
- inc( PtrUInt( WriteRow ), DestPitch * 2 );
- end;
- 2 : for y := 1 to Src.h do
- begin
- ReadAddr := ReadRow;
- WriteAddr := WriteRow;
- for x := 1 to Src.w do
- begin
- PUInt16( WriteAddr )^ := PUInt16( ReadAddr )^;
- PUInt16( WriteAddr + 2 )^ := PUInt16( ReadAddr )^;
- PUInt16( WriteAddr + DestPitch )^ := PUInt16( ReadAddr )^;
- PUInt16( WriteAddr + DestPitch + 2 )^ := PUInt16( ReadAddr )^;
- inc( ReadAddr, 2 );
- inc( WriteAddr, 4 );
- end;
- inc( PtrUInt( ReadRow ), SrcPitch );
- inc( PtrUInt( WriteRow ), DestPitch * 2 );
- end;
- 3 : for y := 1 to Src.h do
- begin
- ReadAddr := ReadRow;
- WriteAddr := WriteRow;
- for x := 1 to Src.w do
- begin
- PUInt32( WriteAddr )^ := ( PUInt32( WriteAddr )^ and $FF000000 ) or ( PUInt32( ReadAddr )^ and $00FFFFFF );
- PUInt32( WriteAddr + 3 )^ := ( PUInt32( WriteAddr + 3 )^ and $FF000000 ) or ( PUInt32( ReadAddr )^ and $00FFFFFF );
- PUInt32( WriteAddr + DestPitch )^ := ( PUInt32( WriteAddr + DestPitch )^ and $FF000000 ) or ( PUInt32( ReadAddr )^ and $00FFFFFF );
- PUInt32( WriteAddr + DestPitch + 3 )^ := ( PUInt32( WriteAddr + DestPitch + 3 )^ and $FF000000 ) or ( PUInt32( ReadAddr )^ and $00FFFFFF );
- inc( ReadAddr, 3 );
- inc( WriteAddr, 6 );
- end;
- inc( PtrUInt( ReadRow ), SrcPitch );
- inc( PtrUInt( WriteRow ), DestPitch * 2 );
- end;
- 4 : for y := 1 to Src.h do
- begin
- ReadAddr := ReadRow;
- WriteAddr := WriteRow;
- for x := 1 to Src.w do
- begin
- PUInt32( WriteAddr )^ := PUInt32( ReadAddr )^;
- PUInt32( WriteAddr + 4 )^ := PUInt32( ReadAddr )^;
- PUInt32( WriteAddr + DestPitch )^ := PUInt32( ReadAddr )^;
- PUInt32( WriteAddr + DestPitch + 4 )^ := PUInt32( ReadAddr )^;
- inc( ReadAddr, 4 );
- inc( WriteAddr, 8 );
- end;
- inc( PtrUInt( ReadRow ), SrcPitch );
- inc( PtrUInt( WriteRow ), DestPitch * 2 );
- end;
- end;
-
- if SDL_MustLock( Src ) then
- SDL_UnlockSurface( Src );
- if SDL_MustLock( Dest ) then
- SDL_UnlockSurface( Dest );
-end;
-
-procedure SDL_Scanline2xBlit( Src, Dest : PSDL_Surface );
-var
- ReadAddr, WriteAddr, ReadRow, WriteRow : PtrUInt;
- SrcPitch, DestPitch, x, y : UInt32;
-begin
- if ( Src = nil ) or ( Dest = nil ) then
- exit;
- if ( Src.w shl 1 ) < Dest.w then
- exit;
- if ( Src.h shl 1 ) < Dest.h then
- exit;
-
- if SDL_MustLock( Src ) then
- SDL_LockSurface( Src );
- if SDL_MustLock( Dest ) then
- SDL_LockSurface( Dest );
-
- ReadRow := PtrUInt( Src.Pixels );
- WriteRow := PtrUInt( Dest.Pixels );
-
- SrcPitch := Src.pitch;
- DestPitch := Dest.pitch;
-
- case Src.format.BytesPerPixel of
- 1 : for y := 1 to Src.h do
- begin
- ReadAddr := ReadRow;
- WriteAddr := WriteRow;
- for x := 1 to Src.w do
- begin
- PUInt8( WriteAddr )^ := PUInt8( ReadAddr )^;
- PUInt8( WriteAddr + 1 )^ := PUInt8( ReadAddr )^;
- inc( ReadAddr );
- inc( WriteAddr, 2 );
- end;
- inc( PtrUInt( ReadRow ), SrcPitch );
- inc( PtrUInt( WriteRow ), DestPitch * 2 );
- end;
- 2 : for y := 1 to Src.h do
- begin
- ReadAddr := ReadRow;
- WriteAddr := WriteRow;
- for x := 1 to Src.w do
- begin
- PUInt16( WriteAddr )^ := PUInt16( ReadAddr )^;
- PUInt16( WriteAddr + 2 )^ := PUInt16( ReadAddr )^;
- inc( ReadAddr, 2 );
- inc( WriteAddr, 4 );
- end;
- inc( PtrUInt( ReadRow ), SrcPitch );
- inc( PtrUInt( WriteRow ), DestPitch * 2 );
- end;
- 3 : for y := 1 to Src.h do
- begin
- ReadAddr := ReadRow;
- WriteAddr := WriteRow;
- for x := 1 to Src.w do
- begin
- PUInt32( WriteAddr )^ := ( PUInt32( WriteAddr )^ and $FF000000 ) or ( PUInt32( ReadAddr )^ and $00FFFFFF );
- PUInt32( WriteAddr + 3 )^ := ( PUInt32( WriteAddr + 3 )^ and $FF000000 ) or ( PUInt32( ReadAddr )^ and $00FFFFFF );
- inc( ReadAddr, 3 );
- inc( WriteAddr, 6 );
- end;
- inc( PtrUInt( ReadRow ), SrcPitch );
- inc( PtrUInt( WriteRow ), DestPitch * 2 );
- end;
- 4 : for y := 1 to Src.h do
- begin
- ReadAddr := ReadRow;
- WriteAddr := WriteRow;
- for x := 1 to Src.w do
- begin
- PUInt32( WriteAddr )^ := PUInt32( ReadAddr )^;
- PUInt32( WriteAddr + 4 )^ := PUInt32( ReadAddr )^;
- inc( ReadAddr, 4 );
- inc( WriteAddr, 8 );
- end;
- inc( PtrUInt( ReadRow ), SrcPitch );
- inc( PtrUInt( WriteRow ), DestPitch * 2 );
- end;
- end;
-
- if SDL_MustLock( Src ) then
- SDL_UnlockSurface( Src );
- if SDL_MustLock( Dest ) then
- SDL_UnlockSurface( Dest );
-end;
-
-procedure SDL_50Scanline2xBlit( Src, Dest : PSDL_Surface );
-var
- ReadAddr, WriteAddr, ReadRow, WriteRow : PtrUInt;
- SrcPitch, DestPitch, x, y, Color : UInt32;
-begin
- if ( Src = nil ) or ( Dest = nil ) then
- exit;
- if ( Src.w shl 1 ) < Dest.w then
- exit;
- if ( Src.h shl 1 ) < Dest.h then
- exit;
-
- if SDL_MustLock( Src ) then
- SDL_LockSurface( Src );
- if SDL_MustLock( Dest ) then
- SDL_LockSurface( Dest );
-
- ReadRow := PtrUInt( Src.Pixels );
- WriteRow := PtrUInt( Dest.Pixels );
-
- SrcPitch := Src.pitch;
- DestPitch := Dest.pitch;
-
- case Src.format.BitsPerPixel of
- 8 : for y := 1 to Src.h do
- begin
- ReadAddr := ReadRow;
- WriteAddr := WriteRow;
- for x := 1 to Src.w do
- begin
- Color := PUInt8( ReadAddr )^;
- PUInt8( WriteAddr )^ := Color;
- PUInt8( WriteAddr + 1 )^ := Color;
- Color := ( Color shr 1 ) and $6D; {%01101101}
- PUInt8( WriteAddr + DestPitch )^ := Color;
- PUInt8( WriteAddr + DestPitch + 1 )^ := Color;
- inc( ReadAddr );
- inc( WriteAddr, 2 );
- end;
- inc( PtrUInt( ReadRow ), SrcPitch );
- inc( PtrUInt( WriteRow ), DestPitch * 2 );
- end;
- 15 : for y := 1 to Src.h do
- begin
- ReadAddr := ReadRow;
- WriteAddr := WriteRow;
- for x := 1 to Src.w do
- begin
- Color := PUInt16( ReadAddr )^;
- PUInt16( WriteAddr )^ := Color;
- PUInt16( WriteAddr + 2 )^ := Color;
- Color := ( Color shr 1 ) and $3DEF; {%0011110111101111}
- PUInt16( WriteAddr + DestPitch )^ := Color;
- PUInt16( WriteAddr + DestPitch + 2 )^ := Color;
- inc( ReadAddr, 2 );
- inc( WriteAddr, 4 );
- end;
- inc( PtrUInt( ReadRow ), SrcPitch );
- inc( PtrUInt( WriteRow ), DestPitch * 2 );
- end;
- 16 : for y := 1 to Src.h do
- begin
- ReadAddr := ReadRow;
- WriteAddr := WriteRow;
- for x := 1 to Src.w do
- begin
- Color := PUInt16( ReadAddr )^;
- PUInt16( WriteAddr )^ := Color;
- PUInt16( WriteAddr + 2 )^ := Color;
- Color := ( Color shr 1 ) and $7BEF; {%0111101111101111}
- PUInt16( WriteAddr + DestPitch )^ := Color;
- PUInt16( WriteAddr + DestPitch + 2 )^ := Color;
- inc( ReadAddr, 2 );
- inc( WriteAddr, 4 );
- end;
- inc( PtrUInt( ReadRow ), SrcPitch );
- inc( PtrUInt( WriteRow ), DestPitch * 2 );
- end;
- 24 : for y := 1 to Src.h do
- begin
- ReadAddr := ReadRow;
- WriteAddr := WriteRow;
- for x := 1 to Src.w do
- begin
- Color := ( PUInt32( WriteAddr )^ and $FF000000 ) or ( PUInt32( ReadAddr )^ and $00FFFFFF );
- PUInt32( WriteAddr )^ := Color;
- PUInt32( WriteAddr + 3 )^ := Color;
- Color := ( Color shr 1 ) and $007F7F7F; {%011111110111111101111111}
- PUInt32( WriteAddr + DestPitch )^ := Color;
- PUInt32( WriteAddr + DestPitch + 3 )^ := Color;
- inc( ReadAddr, 3 );
- inc( WriteAddr, 6 );
- end;
- inc( PtrUInt( ReadRow ), SrcPitch );
- inc( PtrUInt( WriteRow ), DestPitch * 2 );
- end;
- 32 : for y := 1 to Src.h do
- begin
- ReadAddr := ReadRow;
- WriteAddr := WriteRow;
- for x := 1 to Src.w do
- begin
- Color := PUInt32( ReadAddr )^;
- PUInt32( WriteAddr )^ := Color;
- PUInt32( WriteAddr + 4 )^ := Color;
- Color := ( Color shr 1 ) and $7F7F7F7F;
- PUInt32( WriteAddr + DestPitch )^ := Color;
- PUInt32( WriteAddr + DestPitch + 4 )^ := Color;
- inc( ReadAddr, 4 );
- inc( WriteAddr, 8 );
- end;
- inc( PtrUInt( ReadRow ), SrcPitch );
- inc( PtrUInt( WriteRow ), DestPitch * 2 );
- end;
- end;
-
- if SDL_MustLock( Src ) then
- SDL_UnlockSurface( Src );
- if SDL_MustLock( Dest ) then
- SDL_UnlockSurface( Dest );
-end;
-
-function SDL_PixelTestSurfaceVsRect( SrcSurface1 : PSDL_Surface; SrcRect1 :
- PSDL_Rect; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) :
- boolean;
-var
- Src_Rect1, Src_Rect2 : TSDL_Rect;
- right1, bottom1 : integer;
- right2, bottom2 : integer;
- Scan1Start, {Scan2Start,} ScanWidth, ScanHeight : cardinal;
- Mod1 : cardinal;
- Addr1 : PtrUInt;
- BPP : cardinal;
- Pitch1 : cardinal;
- TransparentColor1 : cardinal;
- tx, ty : cardinal;
-// StartTick : cardinal; // Auto Removed, Unused Variable
- Color1 : cardinal;
-begin
- Result := false;
- if SrcRect1 = nil then
- begin
- with Src_Rect1 do
- begin
- x := 0;
- y := 0;
- w := SrcSurface1.w;
- h := SrcSurface1.h;
- end;
- end
- else
- Src_Rect1 := SrcRect1^;
-
- Src_Rect2 := SrcRect2^;
- with Src_Rect1 do
- begin
- Right1 := Left1 + w;
- Bottom1 := Top1 + h;
- end;
- with Src_Rect2 do
- begin
- Right2 := Left2 + w;
- Bottom2 := Top2 + h;
- end;
- if ( Left1 >= Right2 ) or ( Right1 <= Left2 ) or ( Top1 >= Bottom2 ) or ( Bottom1 <= Top2 ) then
- exit;
- if Left1 <= Left2 then
- begin
- // 1. left, 2. right
- Scan1Start := Src_Rect1.x + Left2 - Left1;
- //Scan2Start := Src_Rect2.x;
- ScanWidth := Right1 - Left2;
- with Src_Rect2 do
- if ScanWidth > w then
- ScanWidth := w;
- end
- else
- begin
- // 1. right, 2. left
- Scan1Start := Src_Rect1.x;
- //Scan2Start := Src_Rect2.x + Left1 - Left2;
- ScanWidth := Right2 - Left1;
- with Src_Rect1 do
- if ScanWidth > w then
- ScanWidth := w;
- end;
- with SrcSurface1^ do
- begin
- Pitch1 := Pitch;
- Addr1 := PtrUInt( Pixels );
- inc( Addr1, Pitch1 * UInt32( Src_Rect1.y ) );
- with format^ do
- begin
- BPP := BytesPerPixel;
- TransparentColor1 := colorkey;
- end;
- end;
-
- Mod1 := Pitch1 - ( ScanWidth * BPP );
-
- inc( Addr1, BPP * Scan1Start );
-
- if Top1 <= Top2 then
- begin
- // 1. up, 2. down
- ScanHeight := Bottom1 - Top2;
- if ScanHeight > Src_Rect2.h then
- ScanHeight := Src_Rect2.h;
- inc( Addr1, Pitch1 * UInt32( Top2 - Top1 ) );
- end
- else
- begin
- // 1. down, 2. up
- ScanHeight := Bottom2 - Top1;
- if ScanHeight > Src_Rect1.h then
- ScanHeight := Src_Rect1.h;
-
- end;
- case BPP of
- 1 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- if ( PByte( Addr1 )^ <> TransparentColor1 ) then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1 );
-
- end;
- inc( Addr1, Mod1 );
-
- end;
- 2 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- if ( PWord( Addr1 )^ <> TransparentColor1 ) then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1, 2 );
-
- end;
- inc( Addr1, Mod1 );
-
- end;
- 3 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- Color1 := PLongWord( Addr1 )^ and $00FFFFFF;
-
- if ( Color1 <> TransparentColor1 )
- then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1, 3 );
-
- end;
- inc( Addr1, Mod1 );
-
- end;
- 4 :
- for ty := 1 to ScanHeight do
- begin
- for tx := 1 to ScanWidth do
- begin
- if ( PLongWord( Addr1 )^ <> TransparentColor1 ) then
- begin
- Result := true;
- exit;
- end;
- inc( Addr1, 4 );
-
- end;
- inc( Addr1, Mod1 );
-
- end;
- end;
-end;
-
-procedure SDL_ORSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-var
-{*R, *}{*G, *}{*B, *}Pixel1, Pixel2, TransparentColor : cardinal; // Auto Removed, Unused Variable (R) // Auto Removed, Unused Variable (G) // Auto Removed, Unused Variable (B)
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr : PtrUInt;
- WorkX, WorkY : word;
- SrcMod, DestMod : cardinal;
- Bits : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DestSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DestSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- TransparentColor := Format.colorkey;
- end;
- with DestSurface^ do
- begin
- DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- Bits := Format.BitsPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DestSurface );
- WorkY := Src.h;
- case bits of
- 8 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt8( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt8( DestAddr )^;
- PUInt8( DestAddr )^ := Pixel2 or Pixel1;
- end;
- inc( SrcAddr );
- inc( DestAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 15 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
-
- PUInt16( DestAddr )^ := Pixel2 or Pixel1;
-
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 16 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
-
- PUInt16( DestAddr )^ := Pixel2 or Pixel1;
-
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 24 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF;
-
- PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or Pixel2 or Pixel1;
- end;
- inc( SrcAddr, 3 );
- inc( DestAddr, 3 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 32 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^;
-
- PUInt32( DestAddr )^ := Pixel2 or Pixel1;
- end;
- inc( SrcAddr, 4 );
- inc( DestAddr, 4 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DestSurface );
-end;
-
-procedure SDL_ANDSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-var
-{*R, *}{*G, *}{*B, *}Pixel1, Pixel2, TransparentColor : cardinal; // Auto Removed, Unused Variable (R) // Auto Removed, Unused Variable (G) // Auto Removed, Unused Variable (B)
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr : PtrUInt;
- WorkX, WorkY : word;
- SrcMod, DestMod : cardinal;
- Bits : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DestSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DestSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- TransparentColor := Format.colorkey;
- end;
- with DestSurface^ do
- begin
- DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- Bits := Format.BitsPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DestSurface );
- WorkY := Src.h;
- case bits of
- 8 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt8( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt8( DestAddr )^;
- PUInt8( DestAddr )^ := Pixel2 and Pixel1;
- end;
- inc( SrcAddr );
- inc( DestAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 15 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
-
- PUInt16( DestAddr )^ := Pixel2 and Pixel1;
-
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 16 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
-
- PUInt16( DestAddr )^ := Pixel2 and Pixel1;
-
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 24 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF;
-
- PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or Pixel2 and Pixel1;
- end;
- inc( SrcAddr, 3 );
- inc( DestAddr, 3 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 32 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^;
-
- PUInt32( DestAddr )^ := Pixel2 and Pixel1;
- end;
- inc( SrcAddr, 4 );
- inc( DestAddr, 4 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DestSurface );
-end;
-
-
-
-procedure SDL_GTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-var
- R, G, B, Pixel1, Pixel2, TransparentColor : cardinal;
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr : PtrUInt;
- WorkX, WorkY : word;
- SrcMod, DestMod : cardinal;
- Bits : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DestSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DestSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- TransparentColor := Format.colorkey;
- end;
- with DestSurface^ do
- begin
- DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- Bits := Format.BitsPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DestSurface );
- WorkY := Src.h;
- case bits of
- 8 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt8( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt8( DestAddr )^;
- if Pixel2 > 0 then
- begin
- if Pixel2 and $E0 > Pixel1 and $E0 then
- R := Pixel2 and $E0
- else
- R := Pixel1 and $E0;
- if Pixel2 and $1C > Pixel1 and $1C then
- G := Pixel2 and $1C
- else
- G := Pixel1 and $1C;
- if Pixel2 and $03 > Pixel1 and $03 then
- B := Pixel2 and $03
- else
- B := Pixel1 and $03;
-
- if R > $E0 then
- R := $E0;
- if G > $1C then
- G := $1C;
- if B > $03 then
- B := $03;
- PUInt8( DestAddr )^ := R or G or B;
- end
- else
- PUInt8( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr );
- inc( DestAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 15 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $7C00 > Pixel1 and $7C00 then
- R := Pixel2 and $7C00
- else
- R := Pixel1 and $7C00;
- if Pixel2 and $03E0 > Pixel1 and $03E0 then
- G := Pixel2 and $03E0
- else
- G := Pixel1 and $03E0;
- if Pixel2 and $001F > Pixel1 and $001F then
- B := Pixel2 and $001F
- else
- B := Pixel1 and $001F;
-
- PUInt16( DestAddr )^ := R or G or B;
- end
- else
- PUInt16( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 16 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $F800 > Pixel1 and $F800 then
- R := Pixel2 and $F800
- else
- R := Pixel1 and $F800;
- if Pixel2 and $07E0 > Pixel1 and $07E0 then
- G := Pixel2 and $07E0
- else
- G := Pixel1 and $07E0;
- if Pixel2 and $001F > Pixel1 and $001F then
- B := Pixel2 and $001F
- else
- B := Pixel1 and $001F;
-
- PUInt16( DestAddr )^ := R or G or B;
- end
- else
- PUInt16( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 24 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $FF0000 > Pixel1 and $FF0000 then
- R := Pixel2 and $FF0000
- else
- R := Pixel1 and $FF0000;
- if Pixel2 and $00FF00 > Pixel1 and $00FF00 then
- G := Pixel2 and $00FF00
- else
- G := Pixel1 and $00FF00;
- if Pixel2 and $0000FF > Pixel1 and $0000FF then
- B := Pixel2 and $0000FF
- else
- B := Pixel1 and $0000FF;
-
- PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or ( R or G or B );
- end
- else
- PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or Pixel1;
- end;
- inc( SrcAddr, 3 );
- inc( DestAddr, 3 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 32 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $FF0000 > Pixel1 and $FF0000 then
- R := Pixel2 and $FF0000
- else
- R := Pixel1 and $FF0000;
- if Pixel2 and $00FF00 > Pixel1 and $00FF00 then
- G := Pixel2 and $00FF00
- else
- G := Pixel1 and $00FF00;
- if Pixel2 and $0000FF > Pixel1 and $0000FF then
- B := Pixel2 and $0000FF
- else
- B := Pixel1 and $0000FF;
-
- PUInt32( DestAddr )^ := R or G or B;
- end
- else
- PUInt32( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr, 4 );
- inc( DestAddr, 4 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DestSurface );
-end;
-
-
-procedure SDL_LTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect;
- DestSurface : PSDL_Surface; DestRect : PSDL_Rect );
-var
- R, G, B, Pixel1, Pixel2, TransparentColor : cardinal;
- Src, Dest : TSDL_Rect;
- Diff : integer;
- SrcAddr, DestAddr : PtrUInt;
- WorkX, WorkY : word;
- SrcMod, DestMod : cardinal;
- Bits : cardinal;
-begin
- if ( SrcSurface = nil ) or ( DestSurface = nil ) then
- exit; // Remove this to make it faster
- if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then
- exit; // Remove this to make it faster
- if SrcRect = nil then
- begin
- with Src do
- begin
- x := 0;
- y := 0;
- w := SrcSurface.w;
- h := SrcSurface.h;
- end;
- end
- else
- Src := SrcRect^;
- if DestRect = nil then
- begin
- Dest.x := 0;
- Dest.y := 0;
- end
- else
- Dest := DestRect^;
- Dest.w := Src.w;
- Dest.h := Src.h;
- with DestSurface.Clip_Rect do
- begin
- // Source's right side is greater than the dest.cliprect
- if Dest.x + Src.w > x + w then
- begin
- smallint( Src.w ) := x + w - Dest.x;
- smallint( Dest.w ) := x + w - Dest.x;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's bottom side is greater than the dest.clip
- if Dest.y + Src.h > y + h then
- begin
- smallint( Src.h ) := y + h - Dest.y;
- smallint( Dest.h ) := y + h - Dest.y;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- // Source's left side is less than the dest.clip
- if Dest.x < x then
- begin
- Diff := x - Dest.x;
- Src.x := Src.x + Diff;
- smallint( Src.w ) := smallint( Src.w ) - Diff;
- Dest.x := x;
- smallint( Dest.w ) := smallint( Dest.w ) - Diff;
- if smallint( Dest.w ) < 1 then
- exit;
- end;
- // Source's Top side is less than the dest.clip
- if Dest.y < y then
- begin
- Diff := y - Dest.y;
- Src.y := Src.y + Diff;
- smallint( Src.h ) := smallint( Src.h ) - Diff;
- Dest.y := y;
- smallint( Dest.h ) := smallint( Dest.h ) - Diff;
- if smallint( Dest.h ) < 1 then
- exit;
- end;
- end;
- with SrcSurface^ do
- begin
- SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) *
- Format.BytesPerPixel;
- SrcMod := Pitch - Src.w * Format.BytesPerPixel;
- TransparentColor := Format.colorkey;
- end;
- with DestSurface^ do
- begin
- DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) *
- Format.BytesPerPixel;
- DestMod := Pitch - Dest.w * Format.BytesPerPixel;
- Bits := Format.BitsPerPixel;
- end;
- SDL_LockSurface( SrcSurface );
- SDL_LockSurface( DestSurface );
- WorkY := Src.h;
- case bits of
- 8 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt8( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt8( DestAddr )^;
- if Pixel2 > 0 then
- begin
- if Pixel2 and $E0 < Pixel1 and $E0 then
- R := Pixel2 and $E0
- else
- R := Pixel1 and $E0;
- if Pixel2 and $1C < Pixel1 and $1C then
- G := Pixel2 and $1C
- else
- G := Pixel1 and $1C;
- if Pixel2 and $03 < Pixel1 and $03 then
- B := Pixel2 and $03
- else
- B := Pixel1 and $03;
-
- if R > $E0 then
- R := $E0;
- if G > $1C then
- G := $1C;
- if B > $03 then
- B := $03;
- PUInt8( DestAddr )^ := R or G or B;
- end
- else
- PUInt8( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr );
- inc( DestAddr );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 15 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $7C00 < Pixel1 and $7C00 then
- R := Pixel2 and $7C00
- else
- R := Pixel1 and $7C00;
- if Pixel2 and $03E0 < Pixel1 and $03E0 then
- G := Pixel2 and $03E0
- else
- G := Pixel1 and $03E0;
- if Pixel2 and $001F < Pixel1 and $001F then
- B := Pixel2 and $001F
- else
- B := Pixel1 and $001F;
-
- PUInt16( DestAddr )^ := R or G or B;
- end
- else
- PUInt16( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 16 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt16( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt16( DestAddr )^;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $F800 < Pixel1 and $F800 then
- R := Pixel2 and $F800
- else
- R := Pixel1 and $F800;
- if Pixel2 and $07E0 < Pixel1 and $07E0 then
- G := Pixel2 and $07E0
- else
- G := Pixel1 and $07E0;
- if Pixel2 and $001F < Pixel1 and $001F then
- B := Pixel2 and $001F
- else
- B := Pixel1 and $001F;
-
- PUInt16( DestAddr )^ := R or G or B;
- end
- else
- PUInt16( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr, 2 );
- inc( DestAddr, 2 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 24 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $FF0000 < Pixel1 and $FF0000 then
- R := Pixel2 and $FF0000
- else
- R := Pixel1 and $FF0000;
- if Pixel2 and $00FF00 < Pixel1 and $00FF00 then
- G := Pixel2 and $00FF00
- else
- G := Pixel1 and $00FF00;
- if Pixel2 and $0000FF < Pixel1 and $0000FF then
- B := Pixel2 and $0000FF
- else
- B := Pixel1 and $0000FF;
-
- PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or ( R or G or B );
- end
- else
- PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or Pixel1;
- end;
- inc( SrcAddr, 3 );
- inc( DestAddr, 3 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- 32 :
- begin
- repeat
- WorkX := Src.w;
- repeat
- Pixel1 := PUInt32( SrcAddr )^;
- if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then
- begin
- Pixel2 := PUInt32( DestAddr )^;
- if Pixel2 > 0 then
- begin
-
- if Pixel2 and $FF0000 < Pixel1 and $FF0000 then
- R := Pixel2 and $FF0000
- else
- R := Pixel1 and $FF0000;
- if Pixel2 and $00FF00 < Pixel1 and $00FF00 then
- G := Pixel2 and $00FF00
- else
- G := Pixel1 and $00FF00;
- if Pixel2 and $0000FF < Pixel1 and $0000FF then
- B := Pixel2 and $0000FF
- else
- B := Pixel1 and $0000FF;
-
- PUInt32( DestAddr )^ := R or G or B;
- end
- else
- PUInt32( DestAddr )^ := Pixel1;
- end;
- inc( SrcAddr, 4 );
- inc( DestAddr, 4 );
- dec( WorkX );
- until WorkX = 0;
- inc( SrcAddr, SrcMod );
- inc( DestAddr, DestMod );
- dec( WorkY );
- until WorkY = 0;
- end;
- end;
- SDL_UnlockSurface( SrcSurface );
- SDL_UnlockSurface( DestSurface );
-end;
-
-// Will clip the x1,x2,y1,x2 params to the ClipRect provided
-
-function SDL_ClipLine( var x1, y1, x2, y2 : Integer; ClipRect : PSDL_Rect ) : boolean;
-var
- tflag, flag1, flag2 : word;
- txy, xedge, yedge : Integer;
- slope : single;
-
- function ClipCode( x, y : Integer ) : word;
- begin
- Result := 0;
- if x < ClipRect.x then
- Result := 1;
- if x >= ClipRect.w + ClipRect.x then
- Result := Result or 2;
- if y < ClipRect.y then
- Result := Result or 4;
- if y >= ClipRect.h + ClipRect.y then
- Result := Result or 8;
- end;
-
-begin
- flag1 := ClipCode( x1, y1 );
- flag2 := ClipCode( x2, y2 );
- result := true;
-
- while true do
- begin
- if ( flag1 or flag2 ) = 0 then
- Exit; // all in
-
- if ( flag1 and flag2 ) <> 0 then
- begin
- result := false;
- Exit; // all out
- end;
-
- if flag2 = 0 then
- begin
- txy := x1; x1 := x2; x2 := txy;
- txy := y1; y1 := y2; y2 := txy;
- tflag := flag1; flag1 := flag2; flag2 := tflag;
- end;
-
- if ( flag2 and 3 ) <> 0 then
- begin
- if ( flag2 and 1 ) <> 0 then
- xedge := ClipRect.x
- else
- xedge := ClipRect.w + ClipRect.x - 1; // back 1 pixel otherwise we end up in a loop
-
- slope := ( y2 - y1 ) / ( x2 - x1 );
- y2 := y1 + Round( slope * ( xedge - x1 ) );
- x2 := xedge;
- end
- else
- begin
- if ( flag2 and 4 ) <> 0 then
- yedge := ClipRect.y
- else
- yedge := ClipRect.h + ClipRect.y - 1; // up 1 pixel otherwise we end up in a loop
-
- slope := ( x2 - x1 ) / ( y2 - y1 );
- x2 := x1 + Round( slope * ( yedge - y1 ) );
- y2 := yedge;
- end;
-
- flag2 := ClipCode( x2, y2 );
- end;
-end;
-
-end.
-
+unit sdlutils; +{ + $Id: sdlutils.pas,v 1.5 2006/11/19 18:56:44 savage Exp $ + +} +{******************************************************************************} +{ } +{ Borland Delphi SDL - Simple DirectMedia Layer } +{ SDL Utility functions } +{ } +{ } +{ The initial developer of this Pascal code was : } +{ Tom Jones <tigertomjones@gmx.de> } +{ } +{ Portions created by Tom Jones are } +{ Copyright (C) 2000 - 2001 Tom Jones. } +{ } +{ } +{ Contributor(s) } +{ -------------- } +{ Dominique Louis <Dominique@SavageSoftware.com.au> } +{ Róbert Kisnémeth <mikrobi@freemail.hu> } +{ } +{ Obtained through: } +{ Joint Endeavour of Delphi Innovators ( Project JEDI ) } +{ } +{ You may retrieve the latest version of this file at the Project } +{ JEDI home page, located at http://delphi-jedi.org } +{ } +{ The contents of this file are used with permission, subject to } +{ the Mozilla Public License Version 1.1 (the "License"); you may } +{ not use this file except in compliance with the License. You may } +{ obtain a copy of the License at } +{ http://www.mozilla.org/MPL/MPL-1.1.html } +{ } +{ Software distributed under the License is distributed on an } +{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } +{ implied. See the License for the specific language governing } +{ rights and limitations under the License. } +{ } +{ Description } +{ ----------- } +{ Helper functions... } +{ } +{ } +{ Requires } +{ -------- } +{ SDL.dll on Windows platforms } +{ libSDL-1.1.so.0 on Linux platform } +{ } +{ Programming Notes } +{ ----------------- } +{ } +{ } +{ } +{ } +{ Revision History } +{ ---------------- } +{ 2000 - TJ : Initial creation } +{ } +{ July 13 2001 - DL : Added PutPixel and GetPixel routines. } +{ } +{ Sept 14 2001 - RK : Added flipping routines. } +{ } +{ Sept 19 2001 - RK : Added PutPixel & line drawing & blitting with ADD } +{ effect. Fixed a bug in SDL_PutPixel & SDL_GetPixel } +{ Added PSDLRect() } +{ Sept 22 2001 - DL : Removed need for Windows.pas by defining types here} +{ Also removed by poor attempt or a dialog box } +{ } +{ Sept 25 2001 - RK : Added PixelTest, NewPutPixel, SubPixel, SubLine, } +{ SubSurface, MonoSurface & TexturedSurface } +{ } +{ Sept 26 2001 - DL : Made change so that it refers to native Pascal } +{ types rather that Windows types. This makes it more} +{ portable to Linix. } +{ } +{ Sept 27 2001 - RK : SDLUtils now can be compiled with FreePascal } +{ } +{ Oct 27 2001 - JF : Added ScrollY function } +{ } +{ Jan 21 2002 - RK : Added SDL_ZoomSurface and SDL_WarpSurface } +{ } +{ Mar 28 2002 - JF : Added SDL_RotateSurface } +{ } +{ May 13 2002 - RK : Improved SDL_FillRectAdd & SDL_FillRectSub } +{ } +{ May 27 2002 - YS : GradientFillRect function } +{ } +{ May 30 2002 - RK : Added SDL_2xBlit, SDL_Scanline2xBlit } +{ & SDL_50Scanline2xBlit } +{ } +{ June 12 2002 - RK : Added SDL_PixelTestSurfaceVsRect } +{ } +{ June 12 2002 - JF : Updated SDL_PixelTestSurfaceVsRect } +{ } +{ November 9 2002 - JF : Added Jason's boolean Surface functions } +{ } +{ December 10 2002 - DE : Added Dean's SDL_ClipLine function } +{ } +{ April 26 2003 - SS : Incorporated JF's changes to SDL_ClipLine } +{ Fixed SDL_ClipLine bug for non-zero cliprect x, y } +{ Added overloaded SDL_DrawLine for dashed lines } +{ } +{******************************************************************************} +{ + $Log: sdlutils.pas,v $ + Revision 1.5 2006/11/19 18:56:44 savage + Removed Hints and Warnings. + + Revision 1.4 2004/06/02 19:38:53 savage + Changes to SDL_GradientFillRect as suggested by + Ángel Eduardo García Hernández. Many thanks. + + Revision 1.3 2004/05/29 23:11:54 savage + Changes to SDL_ScaleSurfaceRect as suggested by + Ángel Eduardo García Hernández to fix a colour issue with the function. Many thanks. + + Revision 1.2 2004/02/14 00:23:39 savage + As UNIX is defined in jedi-sdl.inc this will be used to check linux compatability as well. Units have been changed to reflect this change. + + Revision 1.1 2004/02/05 00:08:20 savage + Module 1.0 release + + +} + +interface + +{$I jedi-sdl.inc} + +uses +{$IFDEF UNIX} + Types, +{$IFNDEF DARWIN} + Xlib, +{$ENDIF} +{$ENDIF} + SysUtils, + sdl; + +type + TGradientStyle = ( gsHorizontal, gsVertical ); + +// Pixel procedures +function SDL_PixelTest( SrcSurface1 : PSDL_Surface; SrcRect1 : PSDL_Rect; SrcSurface2 : + PSDL_Surface; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) : Boolean; + +function SDL_GetPixel( SrcSurface : PSDL_Surface; x : integer; y : integer ) : Uint32; + +procedure SDL_PutPixel( DstSurface : PSDL_Surface; x : integer; y : integer; pixel : + Uint32 ); + +procedure SDL_AddPixel( DstSurface : PSDL_Surface; x : cardinal; y : cardinal; Color : + cardinal ); + +procedure SDL_SubPixel( DstSurface : PSDL_Surface; x : cardinal; y : cardinal; Color : + cardinal ); + +// Line procedures +procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal ); overload; + +procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal; DashLength, DashSpace : byte ); overload; + +procedure SDL_AddLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal ); + +procedure SDL_SubLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal ); + +// Surface procedures +procedure SDL_AddSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); + +procedure SDL_SubSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); + +procedure SDL_MonoSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect; Color : cardinal ); + +procedure SDL_TexturedSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect; Texture : PSDL_Surface; + TextureRect : PSDL_Rect ); + +procedure SDL_ZoomSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; DstRect : PSDL_Rect ); + +procedure SDL_WarpSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; UL, UR, LR, LL : PPoint ); + +// Flip procedures +procedure SDL_FlipRectH( DstSurface : PSDL_Surface; Rect : PSDL_Rect ); + +procedure SDL_FlipRectV( DstSurface : PSDL_Surface; Rect : PSDL_Rect ); + +function PSDLRect( aLeft, aTop, aWidth, aHeight : integer ) : PSDL_Rect; + +function SDLRect( aLeft, aTop, aWidth, aHeight : integer ) : TSDL_Rect; overload; + +function SDLRect( aRect : TRect ) : TSDL_Rect; overload; + +function SDL_ScaleSurfaceRect( SrcSurface : PSDL_Surface; SrcX1, SrcY1, SrcW, SrcH, + Width, Height : integer ) : PSDL_Surface; + +procedure SDL_ScrollY( DstSurface : PSDL_Surface; DifY : integer ); + +procedure SDL_ScrollX( DstSurface : PSDL_Surface; DifX : integer ); + +procedure SDL_RotateDeg( DstSurface, SrcSurface : PSDL_Surface; SrcRect : + PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Integer ); + +procedure SDL_RotateRad( DstSurface, SrcSurface : PSDL_Surface; SrcRect : + PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Single ); + +function ValidateSurfaceRect( DstSurface : PSDL_Surface; dstrect : PSDL_Rect ) : TSDL_Rect; + +// Fill Rect routine +procedure SDL_FillRectAdd( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 ); + +procedure SDL_FillRectSub( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 ); + +procedure SDL_GradientFillRect( DstSurface : PSDL_Surface; const Rect : PSDL_Rect; const StartColor, EndColor : TSDL_Color; const Style : TGradientStyle ); + +// NOTE for All SDL_2xblit... function : the dest surface must be 2x of the source surface! +procedure SDL_2xBlit( Src, Dest : PSDL_Surface ); + +procedure SDL_Scanline2xBlit( Src, Dest : PSDL_Surface ); + +procedure SDL_50Scanline2xBlit( Src, Dest : PSDL_Surface ); + +// +function SDL_PixelTestSurfaceVsRect( SrcSurface1 : PSDL_Surface; SrcRect1 : + PSDL_Rect; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) : + boolean; + +// Jason's boolean Surface functions +procedure SDL_ORSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); + +procedure SDL_ANDSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); + + +procedure SDL_GTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); + +procedure SDL_LTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); + +function SDL_ClipLine( var x1, y1, x2, y2 : Integer; ClipRect : PSDL_Rect ) : boolean; + +implementation + +uses + Math; + +function SDL_PixelTest( SrcSurface1 : PSDL_Surface; SrcRect1 : PSDL_Rect; SrcSurface2 : + PSDL_Surface; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) : boolean; +var + Src_Rect1, Src_Rect2 : TSDL_Rect; + right1, bottom1 : integer; + right2, bottom2 : integer; + Scan1Start, Scan2Start, ScanWidth, ScanHeight : cardinal; + Mod1, Mod2 : cardinal; + Addr1, Addr2 : PtrUInt; + BPP : cardinal; + Pitch1, Pitch2 : cardinal; + TransparentColor1, TransparentColor2 : cardinal; + tx, ty : cardinal; +// StartTick : cardinal; // Auto Removed, Unused Variable + Color1, Color2 : cardinal; +begin + Result := false; + if SrcRect1 = nil then + begin + with Src_Rect1 do + begin + x := 0; + y := 0; + w := SrcSurface1.w; + h := SrcSurface1.h; + end; + end + else + Src_Rect1 := SrcRect1^; + if SrcRect2 = nil then + begin + with Src_Rect2 do + begin + x := 0; + y := 0; + w := SrcSurface2.w; + h := SrcSurface2.h; + end; + end + else + Src_Rect2 := SrcRect2^; + with Src_Rect1 do + begin + Right1 := Left1 + w; + Bottom1 := Top1 + h; + end; + with Src_Rect2 do + begin + Right2 := Left2 + w; + Bottom2 := Top2 + h; + end; + if ( Left1 >= Right2 ) or ( Right1 <= Left2 ) or ( Top1 >= Bottom2 ) or ( Bottom1 <= + Top2 ) then + exit; + if Left1 <= Left2 then + begin + // 1. left, 2. right + Scan1Start := Src_Rect1.x + Left2 - Left1; + Scan2Start := Src_Rect2.x; + ScanWidth := Right1 - Left2; + with Src_Rect2 do + if ScanWidth > w then + ScanWidth := w; + end + else + begin + // 1. right, 2. left + Scan1Start := Src_Rect1.x; + Scan2Start := Src_Rect2.x + Left1 - Left2; + ScanWidth := Right2 - Left1; + with Src_Rect1 do + if ScanWidth > w then + ScanWidth := w; + end; + with SrcSurface1^ do + begin + Pitch1 := Pitch; + Addr1 := PtrUInt( Pixels ); + inc( Addr1, Pitch1 * UInt32( Src_Rect1.y ) ); + with format^ do + begin + BPP := BytesPerPixel; + TransparentColor1 := colorkey; + end; + end; + with SrcSurface2^ do + begin + TransparentColor2 := format.colorkey; + Pitch2 := Pitch; + Addr2 := PtrUInt( Pixels ); + inc( Addr2, Pitch2 * UInt32( Src_Rect2.y ) ); + end; + Mod1 := Pitch1 - ( ScanWidth * BPP ); + Mod2 := Pitch2 - ( ScanWidth * BPP ); + inc( Addr1, BPP * Scan1Start ); + inc( Addr2, BPP * Scan2Start ); + if Top1 <= Top2 then + begin + // 1. up, 2. down + ScanHeight := Bottom1 - Top2; + if ScanHeight > Src_Rect2.h then + ScanHeight := Src_Rect2.h; + inc( Addr1, Pitch1 * UInt32( Top2 - Top1 ) ); + end + else + begin + // 1. down, 2. up + ScanHeight := Bottom2 - Top1; + if ScanHeight > Src_Rect1.h then + ScanHeight := Src_Rect1.h; + inc( Addr2, Pitch2 * UInt32( Top1 - Top2 ) ); + end; + case BPP of + 1 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + if ( PByte( Addr1 )^ <> TransparentColor1 ) and ( PByte( Addr2 )^ <> + TransparentColor2 ) then + begin + Result := true; + exit; + end; + inc( Addr1 ); + inc( Addr2 ); + end; + inc( Addr1, Mod1 ); + inc( Addr2, Mod2 ); + end; + 2 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + if ( PWord( Addr1 )^ <> TransparentColor1 ) and ( PWord( Addr2 )^ <> + TransparentColor2 ) then + begin + Result := true; + exit; + end; + inc( Addr1, 2 ); + inc( Addr2, 2 ); + end; + inc( Addr1, Mod1 ); + inc( Addr2, Mod2 ); + end; + 3 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + Color1 := PLongWord( Addr1 )^ and $00FFFFFF; + Color2 := PLongWord( Addr2 )^ and $00FFFFFF; + if ( Color1 <> TransparentColor1 ) and ( Color2 <> TransparentColor2 ) + then + begin + Result := true; + exit; + end; + inc( Addr1, 3 ); + inc( Addr2, 3 ); + end; + inc( Addr1, Mod1 ); + inc( Addr2, Mod2 ); + end; + 4 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + if ( PLongWord( Addr1 )^ <> TransparentColor1 ) and ( PLongWord( Addr2 )^ <> + TransparentColor2 ) then + begin + Result := true; + exit; + end; + inc( Addr1, 4 ); + inc( Addr2, 4 ); + end; + inc( Addr1, Mod1 ); + inc( Addr2, Mod2 ); + end; + end; +end; + +procedure SDL_AddPixel( DstSurface : PSDL_Surface; x : cardinal; y : cardinal; Color : + cardinal ); +var + SrcColor : cardinal; + Addr : PtrUInt; + R, G, B : cardinal; +begin + if Color = 0 then + exit; + with DstSurface^ do + begin + Addr := PtrUInt( Pixels ) + y * Pitch + x * format.BytesPerPixel; + SrcColor := PUInt32( Addr )^; + case format.BitsPerPixel of + 8 : + begin + R := SrcColor and $E0 + Color and $E0; + G := SrcColor and $1C + Color and $1C; + B := SrcColor and $03 + Color and $03; + if R > $E0 then + R := $E0; + if G > $1C then + G := $1C; + if B > $03 then + B := $03; + PUInt8( Addr )^ := R or G or B; + end; + 15 : + begin + R := SrcColor and $7C00 + Color and $7C00; + G := SrcColor and $03E0 + Color and $03E0; + B := SrcColor and $001F + Color and $001F; + if R > $7C00 then + R := $7C00; + if G > $03E0 then + G := $03E0; + if B > $001F then + B := $001F; + PUInt16( Addr )^ := R or G or B; + end; + 16 : + begin + R := SrcColor and $F800 + Color and $F800; + G := SrcColor and $07C0 + Color and $07C0; + B := SrcColor and $001F + Color and $001F; + if R > $F800 then + R := $F800; + if G > $07C0 then + G := $07C0; + if B > $001F then + B := $001F; + PUInt16( Addr )^ := R or G or B; + end; + 24 : + begin + R := SrcColor and $00FF0000 + Color and $00FF0000; + G := SrcColor and $0000FF00 + Color and $0000FF00; + B := SrcColor and $000000FF + Color and $000000FF; + if R > $FF0000 then + R := $FF0000; + if G > $00FF00 then + G := $00FF00; + if B > $0000FF then + B := $0000FF; + PUInt32( Addr )^ := SrcColor and $FF000000 or R or G or B; + end; + 32 : + begin + R := SrcColor and $00FF0000 + Color and $00FF0000; + G := SrcColor and $0000FF00 + Color and $0000FF00; + B := SrcColor and $000000FF + Color and $000000FF; + if R > $FF0000 then + R := $FF0000; + if G > $00FF00 then + G := $00FF00; + if B > $0000FF then + B := $0000FF; + PUInt32( Addr )^ := R or G or B; + end; + end; + end; +end; + +procedure SDL_SubPixel( DstSurface : PSDL_Surface; x : cardinal; y : cardinal; Color : + cardinal ); +var + SrcColor : cardinal; + Addr : PtrUInt; + R, G, B : cardinal; +begin + if Color = 0 then + exit; + with DstSurface^ do + begin + Addr := PtrUInt( Pixels ) + y * Pitch + x * format.BytesPerPixel; + SrcColor := PUInt32( Addr )^; + case format.BitsPerPixel of + 8 : + begin + R := SrcColor and $E0 - Color and $E0; + G := SrcColor and $1C - Color and $1C; + B := SrcColor and $03 - Color and $03; + if R > $E0 then + R := 0; + if G > $1C then + G := 0; + if B > $03 then + B := 0; + PUInt8( Addr )^ := R or G or B; + end; + 15 : + begin + R := SrcColor and $7C00 - Color and $7C00; + G := SrcColor and $03E0 - Color and $03E0; + B := SrcColor and $001F - Color and $001F; + if R > $7C00 then + R := 0; + if G > $03E0 then + G := 0; + if B > $001F then + B := 0; + PUInt16( Addr )^ := R or G or B; + end; + 16 : + begin + R := SrcColor and $F800 - Color and $F800; + G := SrcColor and $07C0 - Color and $07C0; + B := SrcColor and $001F - Color and $001F; + if R > $F800 then + R := 0; + if G > $07C0 then + G := 0; + if B > $001F then + B := 0; + PUInt16( Addr )^ := R or G or B; + end; + 24 : + begin + R := SrcColor and $00FF0000 - Color and $00FF0000; + G := SrcColor and $0000FF00 - Color and $0000FF00; + B := SrcColor and $000000FF - Color and $000000FF; + if R > $FF0000 then + R := 0; + if G > $00FF00 then + G := 0; + if B > $0000FF then + B := 0; + PUInt32( Addr )^ := SrcColor and $FF000000 or R or G or B; + end; + 32 : + begin + R := SrcColor and $00FF0000 - Color and $00FF0000; + G := SrcColor and $0000FF00 - Color and $0000FF00; + B := SrcColor and $000000FF - Color and $000000FF; + if R > $FF0000 then + R := 0; + if G > $00FF00 then + G := 0; + if B > $0000FF then + B := 0; + PUInt32( Addr )^ := R or G or B; + end; + end; + end; +end; +// This procedure works on 8, 15, 16, 24 and 32 bits color depth surfaces. +// In 8 bit color depth mode the procedure works with the default packed +// palette (RRRGGGBB). It handles all clipping. + +procedure SDL_AddSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); +var + R, G, B, Pixel1, Pixel2, TransparentColor : cardinal; + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr : PtrUInt; + WorkX, WorkY : word; + SrcMod, DestMod : cardinal; + Bits : cardinal; +begin + if ( SrcSurface = nil ) or ( DestSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DestSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + TransparentColor := Format.colorkey; + end; + with DestSurface^ do + begin + DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + Bits := Format.BitsPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DestSurface ); + WorkY := Src.h; + case bits of + 8 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt8( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt8( DestAddr )^; + if Pixel2 > 0 then + begin + R := Pixel1 and $E0 + Pixel2 and $E0; + G := Pixel1 and $1C + Pixel2 and $1C; + B := Pixel1 and $03 + Pixel2 and $03; + if R > $E0 then + R := $E0; + if G > $1C then + G := $1C; + if B > $03 then + B := $03; + PUInt8( DestAddr )^ := R or G or B; + end + else + PUInt8( DestAddr )^ := Pixel1; + end; + inc( SrcAddr ); + inc( DestAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 15 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + if Pixel2 > 0 then + begin + R := Pixel1 and $7C00 + Pixel2 and $7C00; + G := Pixel1 and $03E0 + Pixel2 and $03E0; + B := Pixel1 and $001F + Pixel2 and $001F; + if R > $7C00 then + R := $7C00; + if G > $03E0 then + G := $03E0; + if B > $001F then + B := $001F; + PUInt16( DestAddr )^ := R or G or B; + end + else + PUInt16( DestAddr )^ := Pixel1; + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 16 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + if Pixel2 > 0 then + begin + R := Pixel1 and $F800 + Pixel2 and $F800; + G := Pixel1 and $07E0 + Pixel2 and $07E0; + B := Pixel1 and $001F + Pixel2 and $001F; + if R > $F800 then + R := $F800; + if G > $07E0 then + G := $07E0; + if B > $001F then + B := $001F; + PUInt16( DestAddr )^ := R or G or B; + end + else + PUInt16( DestAddr )^ := Pixel1; + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 24 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF; + if Pixel2 > 0 then + begin + R := Pixel1 and $FF0000 + Pixel2 and $FF0000; + G := Pixel1 and $00FF00 + Pixel2 and $00FF00; + B := Pixel1 and $0000FF + Pixel2 and $0000FF; + if R > $FF0000 then + R := $FF0000; + if G > $00FF00 then + G := $00FF00; + if B > $0000FF then + B := $0000FF; + PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or ( R or G or B ); + end + else + PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or Pixel1; + end; + inc( SrcAddr, 3 ); + inc( DestAddr, 3 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 32 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^; + if Pixel2 > 0 then + begin + R := Pixel1 and $FF0000 + Pixel2 and $FF0000; + G := Pixel1 and $00FF00 + Pixel2 and $00FF00; + B := Pixel1 and $0000FF + Pixel2 and $0000FF; + if R > $FF0000 then + R := $FF0000; + if G > $00FF00 then + G := $00FF00; + if B > $0000FF then + B := $0000FF; + PUInt32( DestAddr )^ := R or G or B; + end + else + PUInt32( DestAddr )^ := Pixel1; + end; + inc( SrcAddr, 4 ); + inc( DestAddr, 4 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DestSurface ); +end; + +procedure SDL_SubSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); +var + R, G, B, Pixel1, Pixel2, TransparentColor : cardinal; + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr : PtrUInt; +//{*_ebx, *}{*_esi, *}{*_edi, _esp*} : cardinal; // Auto Removed, Unused Variable (_ebx) // Auto Removed, Unused Variable (_esi) // Auto Removed, Unused Variable (_edi) + WorkX, WorkY : word; + SrcMod, DestMod : cardinal; + Bits : cardinal; +begin + if ( SrcSurface = nil ) or ( DestSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DestSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + TransparentColor := Format.colorkey; + end; + with DestSurface^ do + begin + DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + Bits := DestSurface.Format.BitsPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DestSurface ); + WorkY := Src.h; + case bits of + 8 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt8( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt8( DestAddr )^; + if Pixel2 > 0 then + begin + R := Pixel2 and $E0 - Pixel1 and $E0; + G := Pixel2 and $1C - Pixel1 and $1C; + B := Pixel2 and $03 - Pixel1 and $03; + if R > $E0 then + R := 0; + if G > $1C then + G := 0; + if B > $03 then + B := 0; + PUInt8( DestAddr )^ := R or G or B; + end; + end; + inc( SrcAddr ); + inc( DestAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 15 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + if Pixel2 > 0 then + begin + R := Pixel2 and $7C00 - Pixel1 and $7C00; + G := Pixel2 and $03E0 - Pixel1 and $03E0; + B := Pixel2 and $001F - Pixel1 and $001F; + if R > $7C00 then + R := 0; + if G > $03E0 then + G := 0; + if B > $001F then + B := 0; + PUInt16( DestAddr )^ := R or G or B; + end; + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 16 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + if Pixel2 > 0 then + begin + R := Pixel2 and $F800 - Pixel1 and $F800; + G := Pixel2 and $07E0 - Pixel1 and $07E0; + B := Pixel2 and $001F - Pixel1 and $001F; + if R > $F800 then + R := 0; + if G > $07E0 then + G := 0; + if B > $001F then + B := 0; + PUInt16( DestAddr )^ := R or G or B; + end; + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 24 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF; + if Pixel2 > 0 then + begin + R := Pixel2 and $FF0000 - Pixel1 and $FF0000; + G := Pixel2 and $00FF00 - Pixel1 and $00FF00; + B := Pixel2 and $0000FF - Pixel1 and $0000FF; + if R > $FF0000 then + R := 0; + if G > $00FF00 then + G := 0; + if B > $0000FF then + B := 0; + PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or ( R or G or B ); + end; + end; + inc( SrcAddr, 3 ); + inc( DestAddr, 3 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 32 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^; + if Pixel2 > 0 then + begin + R := Pixel2 and $FF0000 - Pixel1 and $FF0000; + G := Pixel2 and $00FF00 - Pixel1 and $00FF00; + B := Pixel2 and $0000FF - Pixel1 and $0000FF; + if R > $FF0000 then + R := 0; + if G > $00FF00 then + G := 0; + if B > $0000FF then + B := 0; + PUInt32( DestAddr )^ := R or G or B; + end + else + PUInt32( DestAddr )^ := Pixel2; + end; + inc( SrcAddr, 4 ); + inc( DestAddr, 4 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DestSurface ); +end; + +procedure SDL_MonoSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect; Color : cardinal ); +var + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr : PtrUInt; +//{*_ebx, *}{*_esi, *}{*_edi, _esp*} : cardinal; // Auto Removed, Unused Variable (_ebx) // Auto Removed, Unused Variable (_esi) // Auto Removed, Unused Variable (_edi) + WorkX, WorkY : word; + SrcMod, DestMod : cardinal; + TransparentColor, SrcColor : cardinal; + BPP : cardinal; +begin + if ( SrcSurface = nil ) or ( DestSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DestSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + TransparentColor := Format.colorkey; + end; + with DestSurface^ do + begin + DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + BPP := DestSurface.Format.BytesPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DestSurface ); + WorkY := Src.h; + case BPP of + 1 : + begin + repeat + WorkX := Src.w; + repeat + SrcColor := PUInt8( SrcAddr )^; + if SrcColor <> TransparentColor then + PUInt8( DestAddr )^ := SrcColor; + inc( SrcAddr ); + inc( DestAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 2 : + begin + repeat + WorkX := Src.w; + repeat + SrcColor := PUInt16( SrcAddr )^; + if SrcColor <> TransparentColor then + PUInt16( DestAddr )^ := SrcColor; + inc( SrcAddr ); + inc( DestAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 3 : + begin + repeat + WorkX := Src.w; + repeat + SrcColor := PUInt32( SrcAddr )^ and $FFFFFF; + if SrcColor <> TransparentColor then + PUInt32( DestAddr )^ := ( PUInt32( DestAddr )^ and $FFFFFF ) or SrcColor; + inc( SrcAddr ); + inc( DestAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 4 : + begin + repeat + WorkX := Src.w; + repeat + SrcColor := PUInt32( SrcAddr )^; + if SrcColor <> TransparentColor then + PUInt32( DestAddr )^ := SrcColor; + inc( SrcAddr ); + inc( DestAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DestSurface ); +end; +// TextureRect.w and TextureRect.h are not used. +// The TextureSurface's size MUST larger than the drawing rectangle!!! + +procedure SDL_TexturedSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect; Texture : PSDL_Surface; + TextureRect : PSDL_Rect ); +var + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr, TextAddr : PtrUInt; +//{*_ebx, *}{*_esi, *}{*_edi, _esp*}: cardinal; // Auto Removed, Unused Variable (_ebx) // Auto Removed, Unused Variable (_esi) // Auto Removed, Unused Variable (_edi) + WorkX, WorkY : word; + SrcMod, DestMod, TextMod : cardinal; +SrcColor, TransparentColor{*, TextureColor*} : cardinal; // Auto Removed, Unused Variable (TextureColor) + BPP : cardinal; +begin + if ( SrcSurface = nil ) or ( DestSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DestSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + TransparentColor := format.colorkey; + end; + with DestSurface^ do + begin + DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + BPP := DestSurface.Format.BitsPerPixel; + end; + with Texture^ do + begin + TextAddr := PtrUInt( Pixels ) + UInt32( TextureRect.y ) * Pitch + + UInt32( TextureRect.x ) * Format.BytesPerPixel; + TextMod := Pitch - Src.w * Format.BytesPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DestSurface ); + SDL_LockSurface( Texture ); + WorkY := Src.h; + case BPP of + 1 : + begin + repeat + WorkX := Src.w; + repeat + SrcColor := PUInt8( SrcAddr )^; + if SrcColor <> TransparentColor then + PUInt8( DestAddr )^ := PUint8( TextAddr )^; + inc( SrcAddr ); + inc( DestAddr ); + inc( TextAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + inc( TextAddr, TextMod ); + dec( WorkY ); + until WorkY = 0; + end; + 2 : + begin + repeat + WorkX := Src.w; + repeat + SrcColor := PUInt16( SrcAddr )^; + if SrcColor <> TransparentColor then + PUInt16( DestAddr )^ := PUInt16( TextAddr )^; + inc( SrcAddr ); + inc( DestAddr ); + inc( TextAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + inc( TextAddr, TextMod ); + dec( WorkY ); + until WorkY = 0; + end; + 3 : + begin + repeat + WorkX := Src.w; + repeat + SrcColor := PUInt32( SrcAddr )^ and $FFFFFF; + if SrcColor <> TransparentColor then + PUInt32( DestAddr )^ := ( PUInt32( DestAddr )^ and $FFFFFF ) or ( PUInt32( TextAddr )^ and $FFFFFF ); + inc( SrcAddr ); + inc( DestAddr ); + inc( TextAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + inc( TextAddr, TextMod ); + dec( WorkY ); + until WorkY = 0; + end; + 4 : + begin + repeat + WorkX := Src.w; + repeat + SrcColor := PUInt32( SrcAddr )^; + if SrcColor <> TransparentColor then + PUInt32( DestAddr )^ := PUInt32( TextAddr )^; + inc( SrcAddr ); + inc( DestAddr ); + inc( TextAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + inc( TextAddr, TextMod ); + dec( WorkY ); + until WorkY = 0; + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DestSurface ); + SDL_UnlockSurface( Texture ); +end; + +procedure SDL_ZoomSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; DstRect : PSDL_Rect ); +var + xc, yc : cardinal; + rx, wx, ry, wy, ry16 : cardinal; + color : cardinal; + modx, mody : cardinal; +begin + // Warning! No checks for surface pointers!!! + if srcrect = nil then + srcrect := @SrcSurface.clip_rect; + if dstrect = nil then + dstrect := @DstSurface.clip_rect; + if SDL_MustLock( SrcSurface ) then + SDL_LockSurface( SrcSurface ); + if SDL_MustLock( DstSurface ) then + SDL_LockSurface( DstSurface ); + modx := trunc( ( srcrect.w / dstrect.w ) * 65536 ); + mody := trunc( ( srcrect.h / dstrect.h ) * 65536 ); + //rx := srcrect.x * 65536; + ry := srcrect.y * 65536; + wy := dstrect.y; + for yc := 0 to dstrect.h - 1 do + begin + rx := srcrect.x * 65536; + wx := dstrect.x; + ry16 := ry shr 16; + for xc := 0 to dstrect.w - 1 do + begin + color := SDL_GetPixel( SrcSurface, rx shr 16, ry16 ); + SDL_PutPixel( DstSurface, wx, wy, color ); + rx := rx + modx; + inc( wx ); + end; + ry := ry + mody; + inc( wy ); + end; + if SDL_MustLock( SrcSurface ) then + SDL_UnlockSurface( SrcSurface ); + if SDL_MustLock( DstSurface ) then + SDL_UnlockSurface( DstSurface ); +end; +// Re-map a rectangular area into an area defined by four vertices +// Converted from C to Pascal by KiCHY + +procedure SDL_WarpSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; DstSurface : PSDL_Surface; UL, UR, LR, LL : PPoint ); +const + SHIFTS = 15; // Extend ints to limit round-off error (try 2 - 20) + THRESH = 1 shl SHIFTS; // Threshold for pixel size value + procedure CopySourceToDest( UL, UR, LR, LL : TPoint; x1, y1, x2, y2 : cardinal ); + var + tm, lm, rm, bm, m : TPoint; + mx, my : cardinal; + cr : cardinal; + begin + // Does the destination area specify a single pixel? + if ( ( abs( ul.x - ur.x ) < THRESH ) and + ( abs( ul.x - lr.x ) < THRESH ) and + ( abs( ul.x - ll.x ) < THRESH ) and + ( abs( ul.y - ur.y ) < THRESH ) and + ( abs( ul.y - lr.y ) < THRESH ) and + ( abs( ul.y - ll.y ) < THRESH ) ) then + begin // Yes + cr := SDL_GetPixel( SrcSurface, ( x1 shr SHIFTS ), ( y1 shr SHIFTS ) ); + SDL_PutPixel( DstSurface, ( ul.x shr SHIFTS ), ( ul.y shr SHIFTS ), cr ); + end + else + begin // No + // Quarter the source and the destination, and then recurse + tm.x := ( ul.x + ur.x ) shr 1; + tm.y := ( ul.y + ur.y ) shr 1; + bm.x := ( ll.x + lr.x ) shr 1; + bm.y := ( ll.y + lr.y ) shr 1; + lm.x := ( ul.x + ll.x ) shr 1; + lm.y := ( ul.y + ll.y ) shr 1; + rm.x := ( ur.x + lr.x ) shr 1; + rm.y := ( ur.y + lr.y ) shr 1; + m.x := ( tm.x + bm.x ) shr 1; + m.y := ( tm.y + bm.y ) shr 1; + mx := ( x1 + x2 ) shr 1; + my := ( y1 + y2 ) shr 1; + CopySourceToDest( ul, tm, m, lm, x1, y1, mx, my ); + CopySourceToDest( tm, ur, rm, m, mx, y1, x2, my ); + CopySourceToDest( m, rm, lr, bm, mx, my, x2, y2 ); + CopySourceToDest( lm, m, bm, ll, x1, my, mx, y2 ); + end; + end; +var + _UL, _UR, _LR, _LL : TPoint; + Rect_x, Rect_y, Rect_w, Rect_h : integer; +begin + if SDL_MustLock( SrcSurface ) then + SDL_LockSurface( SrcSurface ); + if SDL_MustLock( DstSurface ) then + SDL_LockSurface( DstSurface ); + if SrcRect = nil then + begin + Rect_x := 0; + Rect_y := 0; + Rect_w := ( SrcSurface.w - 1 ) shl SHIFTS; + Rect_h := ( SrcSurface.h - 1 ) shl SHIFTS; + end + else + begin + Rect_x := SrcRect.x; + Rect_y := SrcRect.y; + Rect_w := ( SrcRect.w - 1 ) shl SHIFTS; + Rect_h := ( SrcRect.h - 1 ) shl SHIFTS; + end; + // Shift all values to help reduce round-off error. + _ul.x := ul.x shl SHIFTS; + _ul.y := ul.y shl SHIFTS; + _ur.x := ur.x shl SHIFTS; + _ur.y := ur.y shl SHIFTS; + _lr.x := lr.x shl SHIFTS; + _lr.y := lr.y shl SHIFTS; + _ll.x := ll.x shl SHIFTS; + _ll.y := ll.y shl SHIFTS; + CopySourceToDest( _ul, _ur, _lr, _ll, Rect_x, Rect_y, Rect_w, Rect_h ); + if SDL_MustLock( SrcSurface ) then + SDL_UnlockSurface( SrcSurface ); + if SDL_MustLock( DstSurface ) then + SDL_UnlockSurface( DstSurface ); +end; + +// Draw a line between x1,y1 and x2,y2 to the given surface +// NOTE: The surface must be locked before calling this! + +procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal ); +var + dx, dy, sdx, sdy, x, y, px, py : integer; +begin + dx := x2 - x1; + dy := y2 - y1; + if dx < 0 then + sdx := -1 + else + sdx := 1; + if dy < 0 then + sdy := -1 + else + sdy := 1; + dx := sdx * dx + 1; + dy := sdy * dy + 1; + x := 0; + y := 0; + px := x1; + py := y1; + if dx >= dy then + begin + for x := 0 to dx - 1 do + begin + SDL_PutPixel( DstSurface, px, py, Color ); + y := y + dy; + if y >= dx then + begin + y := y - dx; + py := py + sdy; + end; + px := px + sdx; + end; + end + else + begin + for y := 0 to dy - 1 do + begin + SDL_PutPixel( DstSurface, px, py, Color ); + x := x + dx; + if x >= dy then + begin + x := x - dy; + px := px + sdx; + end; + py := py + sdy; + end; + end; +end; + +// Draw a dashed line between x1,y1 and x2,y2 to the given surface +// NOTE: The surface must be locked before calling this! + +procedure SDL_DrawLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal; DashLength, DashSpace : byte ); overload; +var + dx, dy, sdx, sdy, x, y, px, py, counter : integer; drawdash : boolean; +begin + counter := 0; + drawdash := true; //begin line drawing with dash + + //Avoid invalid user-passed dash parameters + if ( DashLength < 1 ) + then + DashLength := 1; + if ( DashSpace < 1 ) + then + DashSpace := 0; + + dx := x2 - x1; + dy := y2 - y1; + if dx < 0 then + sdx := -1 + else + sdx := 1; + if dy < 0 then + sdy := -1 + else + sdy := 1; + dx := sdx * dx + 1; + dy := sdy * dy + 1; + x := 0; + y := 0; + px := x1; + py := y1; + if dx >= dy then + begin + for x := 0 to dx - 1 do + begin + + //Alternate drawing dashes, or leaving spaces + if drawdash then + begin + SDL_PutPixel( DstSurface, px, py, Color ); + inc( counter ); + if ( counter > DashLength - 1 ) and ( DashSpace > 0 ) then + begin + drawdash := false; + counter := 0; + end; + end + else //space + begin + inc( counter ); + if counter > DashSpace - 1 then + begin + drawdash := true; + counter := 0; + end; + end; + + y := y + dy; + if y >= dx then + begin + y := y - dx; + py := py + sdy; + end; + px := px + sdx; + end; + end + else + begin + for y := 0 to dy - 1 do + begin + + //Alternate drawing dashes, or leaving spaces + if drawdash then + begin + SDL_PutPixel( DstSurface, px, py, Color ); + inc( counter ); + if ( counter > DashLength - 1 ) and ( DashSpace > 0 ) then + begin + drawdash := false; + counter := 0; + end; + end + else //space + begin + inc( counter ); + if counter > DashSpace - 1 then + begin + drawdash := true; + counter := 0; + end; + end; + + x := x + dx; + if x >= dy then + begin + x := x - dy; + px := px + sdx; + end; + py := py + sdy; + end; + end; +end; + +procedure SDL_AddLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal ); +var + dx, dy, sdx, sdy, x, y, px, py : integer; +begin + dx := x2 - x1; + dy := y2 - y1; + if dx < 0 then + sdx := -1 + else + sdx := 1; + if dy < 0 then + sdy := -1 + else + sdy := 1; + dx := sdx * dx + 1; + dy := sdy * dy + 1; + x := 0; + y := 0; + px := x1; + py := y1; + if dx >= dy then + begin + for x := 0 to dx - 1 do + begin + SDL_AddPixel( DstSurface, px, py, Color ); + y := y + dy; + if y >= dx then + begin + y := y - dx; + py := py + sdy; + end; + px := px + sdx; + end; + end + else + begin + for y := 0 to dy - 1 do + begin + SDL_AddPixel( DstSurface, px, py, Color ); + x := x + dx; + if x >= dy then + begin + x := x - dy; + px := px + sdx; + end; + py := py + sdy; + end; + end; +end; + +procedure SDL_SubLine( DstSurface : PSDL_Surface; x1, y1, x2, y2 : integer; Color : + cardinal ); +var + dx, dy, sdx, sdy, x, y, px, py : integer; +begin + dx := x2 - x1; + dy := y2 - y1; + if dx < 0 then + sdx := -1 + else + sdx := 1; + if dy < 0 then + sdy := -1 + else + sdy := 1; + dx := sdx * dx + 1; + dy := sdy * dy + 1; + x := 0; + y := 0; + px := x1; + py := y1; + if dx >= dy then + begin + for x := 0 to dx - 1 do + begin + SDL_SubPixel( DstSurface, px, py, Color ); + y := y + dy; + if y >= dx then + begin + y := y - dx; + py := py + sdy; + end; + px := px + sdx; + end; + end + else + begin + for y := 0 to dy - 1 do + begin + SDL_SubPixel( DstSurface, px, py, Color ); + x := x + dx; + if x >= dy then + begin + x := x - dy; + px := px + sdx; + end; + py := py + sdy; + end; + end; +end; + +// flips a rectangle vertically on given surface + +procedure SDL_FlipRectV( DstSurface : PSDL_Surface; Rect : PSDL_Rect ); +var + TmpRect : TSDL_Rect; + Locked : boolean; + y, FlipLength, RowLength : integer; + Row1, Row2 : Pointer; + OneRow : TByteArray; // Optimize it if you wish +begin + if DstSurface <> nil then + begin + if Rect = nil then + begin // if Rect=nil then we flip the whole surface + TmpRect := SDLRect( 0, 0, DstSurface.w, DstSurface.h ); + Rect := @TmpRect; + end; + FlipLength := Rect^.h shr 1 - 1; + RowLength := Rect^.w * DstSurface^.format.BytesPerPixel; + if SDL_MustLock( DstSurface ) then + begin + Locked := true; + SDL_LockSurface( DstSurface ); + end + else + Locked := false; + Row1 := pointer( PtrUInt( DstSurface^.Pixels ) + UInt32( Rect^.y ) * + DstSurface^.Pitch ); + Row2 := pointer( PtrUInt( DstSurface^.Pixels ) + ( UInt32( Rect^.y ) + Rect^.h - 1 ) + * DstSurface^.Pitch ); + for y := 0 to FlipLength do + begin + Move( Row1^, OneRow, RowLength ); + Move( Row2^, Row1^, RowLength ); + Move( OneRow, Row2^, RowLength ); + inc( PtrUInt( Row1 ), DstSurface^.Pitch ); + dec( PtrUInt( Row2 ), DstSurface^.Pitch ); + end; + if Locked then + SDL_UnlockSurface( DstSurface ); + end; +end; + +// flips a rectangle horizontally on given surface + +procedure SDL_FlipRectH( DstSurface : PSDL_Surface; Rect : PSDL_Rect ); +type + T24bit = packed array[ 0..2 ] of byte; + T24bitArray = packed array[ 0..8191 ] of T24bit; + P24bitArray = ^T24bitArray; + TLongWordArray = array[ 0..8191 ] of LongWord; + PLongWordArray = ^TLongWordArray; +var + TmpRect : TSDL_Rect; + Row8bit : PByteArray; + Row16bit : PWordArray; + Row24bit : P24bitArray; + Row32bit : PLongWordArray; + y, x, RightSide, FlipLength : integer; + Pixel : cardinal; + Pixel24 : T24bit; + Locked : boolean; +begin + if DstSurface <> nil then + begin + if Rect = nil then + begin + TmpRect := SDLRect( 0, 0, DstSurface.w, DstSurface.h ); + Rect := @TmpRect; + end; + FlipLength := Rect^.w shr 1 - 1; + if SDL_MustLock( DstSurface ) then + begin + Locked := true; + SDL_LockSurface( DstSurface ); + end + else + Locked := false; + case DstSurface^.format.BytesPerPixel of + 1 : + begin + Row8Bit := pointer( PtrUInt( DstSurface^.pixels ) + UInt32( Rect^.y ) * + DstSurface^.pitch ); + for y := 1 to Rect^.h do + begin + RightSide := Rect^.w - 1; + for x := 0 to FlipLength do + begin + Pixel := Row8Bit^[ x ]; + Row8Bit^[ x ] := Row8Bit^[ RightSide ]; + Row8Bit^[ RightSide ] := Pixel; + dec( RightSide ); + end; + inc( PtrUInt( Row8Bit ), DstSurface^.pitch ); + end; + end; + 2 : + begin + Row16Bit := pointer( PtrUInt( DstSurface^.pixels ) + UInt32( Rect^.y ) * + DstSurface^.pitch ); + for y := 1 to Rect^.h do + begin + RightSide := Rect^.w - 1; + for x := 0 to FlipLength do + begin + Pixel := Row16Bit^[ x ]; + Row16Bit^[ x ] := Row16Bit^[ RightSide ]; + Row16Bit^[ RightSide ] := Pixel; + dec( RightSide ); + end; + inc( PtrUInt( Row16Bit ), DstSurface^.pitch ); + end; + end; + 3 : + begin + Row24Bit := pointer( PtrUInt( DstSurface^.pixels ) + UInt32( Rect^.y ) * + DstSurface^.pitch ); + for y := 1 to Rect^.h do + begin + RightSide := Rect^.w - 1; + for x := 0 to FlipLength do + begin + Pixel24 := Row24Bit^[ x ]; + Row24Bit^[ x ] := Row24Bit^[ RightSide ]; + Row24Bit^[ RightSide ] := Pixel24; + dec( RightSide ); + end; + inc( PtrUInt( Row24Bit ), DstSurface^.pitch ); + end; + end; + 4 : + begin + Row32Bit := pointer( PtrUInt( DstSurface^.pixels ) + UInt32( Rect^.y ) * + DstSurface^.pitch ); + for y := 1 to Rect^.h do + begin + RightSide := Rect^.w - 1; + for x := 0 to FlipLength do + begin + Pixel := Row32Bit^[ x ]; + Row32Bit^[ x ] := Row32Bit^[ RightSide ]; + Row32Bit^[ RightSide ] := Pixel; + dec( RightSide ); + end; + inc( PtrUInt( Row32Bit ), DstSurface^.pitch ); + end; + end; + end; + if Locked then + SDL_UnlockSurface( DstSurface ); + end; +end; + +// Use with caution! The procedure allocates memory for TSDL_Rect and return with its pointer. +// But you MUST free it after you don't need it anymore!!! + +function PSDLRect( aLeft, aTop, aWidth, aHeight : integer ) : PSDL_Rect; +var + Rect : PSDL_Rect; +begin + New( Rect ); + with Rect^ do + begin + x := aLeft; + y := aTop; + w := aWidth; + h := aHeight; + end; + Result := Rect; +end; + +function SDLRect( aLeft, aTop, aWidth, aHeight : integer ) : TSDL_Rect; +begin + with result do + begin + x := aLeft; + y := aTop; + w := aWidth; + h := aHeight; + end; +end; + +function SDLRect( aRect : TRect ) : TSDL_Rect; +begin + with aRect do + result := SDLRect( Left, Top, Right - Left, Bottom - Top ); +end; + +procedure SDL_Stretch8( Surface, Dst_Surface : PSDL_Surface; x1, x2, y1, y2, yr, yw, + depth : integer ); +var + dx, dy, e, d, dx2 : integer; + src_pitch, dst_pitch : uint16; + src_pixels, dst_pixels : PUint8; +begin + if ( yw >= dst_surface^.h ) then + exit; + dx := ( x2 - x1 ); + dy := ( y2 - y1 ); + dy := dy shl 1; + e := dy - dx; + dx2 := dx shl 1; + src_pitch := Surface^.pitch; + dst_pitch := dst_surface^.pitch; + src_pixels := PUint8( PtrUInt( Surface^.pixels ) + yr * src_pitch + y1 * depth ); + dst_pixels := PUint8( PtrUInt( dst_surface^.pixels ) + yw * dst_pitch + x1 * + depth ); + for d := 0 to dx - 1 do + begin + move( src_pixels^, dst_pixels^, depth ); + while ( e >= 0 ) do + begin + inc( src_pixels, depth ); + e := e - dx2; + end; + inc( dst_pixels, depth ); + e := e + dy; + end; +end; + +function sign( x : integer ) : integer; +begin + if x > 0 then + result := 1 + else + result := -1; +end; + +// Stretches a part of a surface + +function SDL_ScaleSurfaceRect( SrcSurface : PSDL_Surface; SrcX1, SrcY1, SrcW, SrcH, + Width, Height : integer ) : PSDL_Surface; +var + dst_surface : PSDL_Surface; + dx, dy, e, d, dx2, srcx2, srcy2 : integer; + destx1, desty1 : integer; +begin + srcx2 := srcx1 + SrcW; + srcy2 := srcy1 + SrcH; + result := nil; + destx1 := 0; + desty1 := 0; + dx := abs( integer( Height - desty1 ) ); + dy := abs( integer( SrcY2 - SrcY1 ) ); + e := ( dy shl 1 ) - dx; + dx2 := dx shl 1; + dy := dy shl 1; + dst_surface := SDL_CreateRGBSurface( SDL_HWPALETTE, width - destx1, Height - + desty1, + SrcSurface^.Format^.BitsPerPixel, + SrcSurface^.Format^.RMask, + SrcSurface^.Format^.GMask, + SrcSurface^.Format^.BMask, + SrcSurface^.Format^.AMask ); + if ( dst_surface^.format^.BytesPerPixel = 1 ) then + SDL_SetColors( dst_surface, @SrcSurface^.format^.palette^.colors^[ 0 ], 0, 256 ); + SDL_SetColorKey( dst_surface, sdl_srccolorkey, SrcSurface^.format^.colorkey ); + if ( SDL_MustLock( dst_surface ) ) then + if ( SDL_LockSurface( dst_surface ) < 0 ) then + exit; + for d := 0 to dx - 1 do + begin + SDL_Stretch8( SrcSurface, dst_surface, destx1, Width, SrcX1, SrcX2, SrcY1, desty1, + SrcSurface^.format^.BytesPerPixel ); + while e >= 0 do + begin + inc( SrcY1 ); + e := e - dx2; + end; + inc( desty1 ); + e := e + dy; + end; + if SDL_MUSTLOCK( dst_surface ) then + SDL_UnlockSurface( dst_surface ); + result := dst_surface; +end; + +procedure SDL_MoveLine( Surface : PSDL_Surface; x1, x2, y1, xofs, depth : integer ); +var + src_pixels, dst_pixels : PUint8; + i : integer; +begin + src_pixels := PUint8( PtrUInt( Surface^.pixels ) + Surface^.w * y1 * depth + x2 * + depth ); + dst_pixels := PUint8( PtrUInt( Surface^.pixels ) + Surface^.w * y1 * depth + ( x2 + + xofs ) * depth ); + for i := x2 downto x1 do + begin + move( src_pixels^, dst_pixels^, depth ); + dec( src_pixels ); + dec( dst_pixels ); + end; +end; +{ Return the pixel value at (x, y) +NOTE: The surface must be locked before calling this! } + +function SDL_GetPixel( SrcSurface : PSDL_Surface; x : integer; y : integer ) : Uint32; +var + bpp : UInt32; + p : PInteger; +begin + bpp := SrcSurface.format.BytesPerPixel; + // Here p is the address to the pixel we want to retrieve + p := Pointer( PtrUInt( SrcSurface.pixels ) + UInt32( y ) * SrcSurface.pitch + UInt32( x ) * + bpp ); + case bpp of + 1 : result := PUint8( p )^; + 2 : result := PUint16( p )^; + 3 : + if ( SDL_BYTEORDER = SDL_BIG_ENDIAN ) then + result := PUInt8Array( p )[ 0 ] shl 16 or PUInt8Array( p )[ 1 ] shl 8 or + PUInt8Array( p )[ 2 ] + else + result := PUInt8Array( p )[ 0 ] or PUInt8Array( p )[ 1 ] shl 8 or + PUInt8Array( p )[ 2 ] shl 16; + 4 : result := PUint32( p )^; + else + result := 0; // shouldn't happen, but avoids warnings + end; +end; +{ Set the pixel at (x, y) to the given value + NOTE: The surface must be locked before calling this! } + +procedure SDL_PutPixel( DstSurface : PSDL_Surface; x : integer; y : integer; pixel : + Uint32 ); +var + bpp : UInt32; + p : PInteger; +begin + bpp := DstSurface.format.BytesPerPixel; + p := Pointer( PtrUInt( DstSurface.pixels ) + UInt32( y ) * DstSurface.pitch + UInt32( x ) + * bpp ); + case bpp of + 1 : PUint8( p )^ := pixel; + 2 : PUint16( p )^ := pixel; + 3 : + if ( SDL_BYTEORDER = SDL_BIG_ENDIAN ) then + begin + PUInt8Array( p )[ 0 ] := ( pixel shr 16 ) and $FF; + PUInt8Array( p )[ 1 ] := ( pixel shr 8 ) and $FF; + PUInt8Array( p )[ 2 ] := pixel and $FF; + end + else + begin + PUInt8Array( p )[ 0 ] := pixel and $FF; + PUInt8Array( p )[ 1 ] := ( pixel shr 8 ) and $FF; + PUInt8Array( p )[ 2 ] := ( pixel shr 16 ) and $FF; + end; + 4 : + PUint32( p )^ := pixel; + end; +end; + +procedure SDL_ScrollY( DstSurface : PSDL_Surface; DifY : integer ); +var + r1, r2 : TSDL_Rect; + //buffer: PSDL_Surface; + YPos : Integer; +begin + if ( DstSurface <> nil ) and ( DifY <> 0 ) then + begin + //if DifY > 0 then // going up + //begin + ypos := 0; + r1.x := 0; + r2.x := 0; + r1.w := DstSurface.w; + r2.w := DstSurface.w; + r1.h := DifY; + r2.h := DifY; + while ypos < DstSurface.h do + begin + r1.y := ypos; + r2.y := ypos + DifY; + SDL_BlitSurface( DstSurface, @r2, DstSurface, @r1 ); + ypos := ypos + DifY; + end; + //end + //else + //begin // Going Down + //end; + end; +end; + +{procedure SDL_ScrollY(Surface: PSDL_Surface; DifY: integer); +var + r1, r2: TSDL_Rect; + buffer: PSDL_Surface; +begin + if (Surface <> nil) and (Dify <> 0) then + begin + buffer := SDL_CreateRGBSurface(SDL_HWSURFACE, (Surface^.w - DifY) * 2, + Surface^.h * 2, + Surface^.Format^.BitsPerPixel, 0, 0, 0, 0); + if buffer <> nil then + begin + if (buffer^.format^.BytesPerPixel = 1) then + SDL_SetColors(buffer, @Surface^.format^.palette^.colors^[0], 0, 256); + r1 := SDLRect(0, DifY, buffer^.w, buffer^.h); + r2 := SDLRect(0, 0, buffer^.w, buffer^.h); + SDL_BlitSurface(Surface, @r1, buffer, @r2); + SDL_BlitSurface(buffer, @r2, Surface, @r2); + SDL_FreeSurface(buffer); + end; + end; +end;} + +procedure SDL_ScrollX( DstSurface : PSDL_Surface; DifX : integer ); +var + r1, r2 : TSDL_Rect; + buffer : PSDL_Surface; +begin + if ( DstSurface <> nil ) and ( DifX <> 0 ) then + begin + buffer := SDL_CreateRGBSurface( SDL_HWSURFACE, ( DstSurface^.w - DifX ) * 2, + DstSurface^.h * 2, + DstSurface^.Format^.BitsPerPixel, + DstSurface^.Format^.RMask, + DstSurface^.Format^.GMask, + DstSurface^.Format^.BMask, + DstSurface^.Format^.AMask ); + if buffer <> nil then + begin + if ( buffer^.format^.BytesPerPixel = 1 ) then + SDL_SetColors( buffer, @DstSurface^.format^.palette^.colors^[ 0 ], 0, 256 ); + r1 := SDLRect( DifX, 0, buffer^.w, buffer^.h ); + r2 := SDLRect( 0, 0, buffer^.w, buffer^.h ); + SDL_BlitSurface( DstSurface, @r1, buffer, @r2 ); + SDL_BlitSurface( buffer, @r2, DstSurface, @r2 ); + SDL_FreeSurface( buffer ); + end; + end; +end; + +procedure SDL_RotateRad( DstSurface, SrcSurface : PSDL_Surface; SrcRect : + PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Single ); +var + aSin, aCos : Single; + MX, MY, DX, DY, NX, NY, SX, SY, OX, OY, Width, Height, TX, TY, RX, RY, ROX, ROY : Integer; + Colour, TempTransparentColour : UInt32; + MAXX, MAXY : Integer; +begin + // Rotate the surface to the target surface. + TempTransparentColour := SrcSurface.format.colorkey; + {if srcRect.w > srcRect.h then + begin + Width := srcRect.w; + Height := srcRect.w; + end + else + begin + Width := srcRect.h; + Height := srcRect.h; + end; } + + maxx := DstSurface.w; + maxy := DstSurface.h; + aCos := cos( Angle ); + aSin := sin( Angle ); + + Width := round( abs( srcrect.h * acos ) + abs( srcrect.w * asin ) ); + Height := round( abs( srcrect.h * asin ) + abs( srcrect.w * acos ) ); + + OX := Width div 2; + OY := Height div 2; ; + MX := ( srcRect.x + ( srcRect.x + srcRect.w ) ) div 2; + MY := ( srcRect.y + ( srcRect.y + srcRect.h ) ) div 2; + ROX := ( -( srcRect.w div 2 ) ) + Offsetx; + ROY := ( -( srcRect.h div 2 ) ) + OffsetY; + Tx := ox + round( ROX * aSin - ROY * aCos ); + Ty := oy + round( ROY * aSin + ROX * aCos ); + SX := 0; + for DX := DestX - TX to DestX - TX + ( width ) do + begin + Inc( SX ); + SY := 0; + for DY := DestY - TY to DestY - TY + ( Height ) do + begin + RX := SX - OX; + RY := SY - OY; + NX := round( mx + RX * aSin + RY * aCos ); // + NY := round( my + RY * aSin - RX * aCos ); // + // Used for testing only + //SDL_PutPixel(DestSurface.SDLSurfacePointer,DX,DY,0); + if ( ( DX > 0 ) and ( DX < MAXX ) ) and ( ( DY > 0 ) and ( DY < MAXY ) ) then + begin + if ( NX >= srcRect.x ) and ( NX <= srcRect.x + srcRect.w ) then + begin + if ( NY >= srcRect.y ) and ( NY <= srcRect.y + srcRect.h ) then + begin + Colour := SDL_GetPixel( SrcSurface, NX, NY ); + if Colour <> TempTransparentColour then + begin + SDL_PutPixel( DstSurface, DX, DY, Colour ); + end; + end; + end; + end; + inc( SY ); + end; + end; +end; + +procedure SDL_RotateDeg( DstSurface, SrcSurface : PSDL_Surface; SrcRect : + PSDL_Rect; DestX, DestY, OffsetX, OffsetY : Integer; Angle : Integer ); +begin + SDL_RotateRad( DstSurface, SrcSurface, SrcRect, DestX, DestY, OffsetX, OffsetY, DegToRad( Angle ) ); +end; + +function ValidateSurfaceRect( DstSurface : PSDL_Surface; dstrect : PSDL_Rect ) : TSDL_Rect; +var + RealRect : TSDL_Rect; + OutOfRange : Boolean; +begin + OutOfRange := false; + if dstrect = nil then + begin + RealRect.x := 0; + RealRect.y := 0; + RealRect.w := DstSurface.w; + RealRect.h := DstSurface.h; + end + else + begin + if dstrect.x < DstSurface.w then + begin + RealRect.x := dstrect.x; + end + else if dstrect.x < 0 then + begin + realrect.x := 0; + end + else + begin + OutOfRange := True; + end; + if dstrect.y < DstSurface.h then + begin + RealRect.y := dstrect.y; + end + else if dstrect.y < 0 then + begin + realrect.y := 0; + end + else + begin + OutOfRange := True; + end; + if OutOfRange = False then + begin + if realrect.x + dstrect.w <= DstSurface.w then + begin + RealRect.w := dstrect.w; + end + else + begin + RealRect.w := dstrect.w - realrect.x; + end; + if realrect.y + dstrect.h <= DstSurface.h then + begin + RealRect.h := dstrect.h; + end + else + begin + RealRect.h := dstrect.h - realrect.y; + end; + end; + end; + if OutOfRange = False then + begin + result := realrect; + end + else + begin + realrect.w := 0; + realrect.h := 0; + realrect.x := 0; + realrect.y := 0; + result := realrect; + end; +end; + +procedure SDL_FillRectAdd( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 ); +var + RealRect : TSDL_Rect; + Addr : pointer; + ModX, BPP : cardinal; + x, y, R, G, B, SrcColor : cardinal; +begin + RealRect := ValidateSurfaceRect( DstSurface, DstRect ); + if ( RealRect.w > 0 ) and ( RealRect.h > 0 ) then + begin + SDL_LockSurface( DstSurface ); + BPP := DstSurface.format.BytesPerPixel; + with DstSurface^ do + begin + Addr := pointer( PtrUInt( pixels ) + UInt32( RealRect.y ) * pitch + UInt32( RealRect.x ) * BPP ); + ModX := Pitch - UInt32( RealRect.w ) * BPP; + end; + case DstSurface.format.BitsPerPixel of + 8 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $E0 + Color and $E0; + G := SrcColor and $1C + Color and $1C; + B := SrcColor and $03 + Color and $03; + if R > $E0 then + R := $E0; + if G > $1C then + G := $1C; + if B > $03 then + B := $03; + PUInt8( Addr )^ := R or G or B; + inc( PtrUInt( Addr ), BPP ); + end; + inc( PtrUInt( Addr ), ModX ); + end; + end; + 15 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $7C00 + Color and $7C00; + G := SrcColor and $03E0 + Color and $03E0; + B := SrcColor and $001F + Color and $001F; + if R > $7C00 then + R := $7C00; + if G > $03E0 then + G := $03E0; + if B > $001F then + B := $001F; + PUInt16( Addr )^ := R or G or B; + inc( PtrUInt( Addr ), BPP ); + end; + inc( PtrUInt( Addr ), ModX ); + end; + end; + 16 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $F800 + Color and $F800; + G := SrcColor and $07C0 + Color and $07C0; + B := SrcColor and $001F + Color and $001F; + if R > $F800 then + R := $F800; + if G > $07C0 then + G := $07C0; + if B > $001F then + B := $001F; + PUInt16( Addr )^ := R or G or B; + inc( PtrUInt( Addr ), BPP ); + end; + inc( PtrUInt( Addr ), ModX ); + end; + end; + 24 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $00FF0000 + Color and $00FF0000; + G := SrcColor and $0000FF00 + Color and $0000FF00; + B := SrcColor and $000000FF + Color and $000000FF; + if R > $FF0000 then + R := $FF0000; + if G > $00FF00 then + G := $00FF00; + if B > $0000FF then + B := $0000FF; + PUInt32( Addr )^ := SrcColor and $FF000000 or R or G or B; + inc( PtrUInt( Addr ), BPP ); + end; + inc( PtrUInt( Addr ), ModX ); + end; + end; + 32 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $00FF0000 + Color and $00FF0000; + G := SrcColor and $0000FF00 + Color and $0000FF00; + B := SrcColor and $000000FF + Color and $000000FF; + if R > $FF0000 then + R := $FF0000; + if G > $00FF00 then + G := $00FF00; + if B > $0000FF then + B := $0000FF; + PUInt32( Addr )^ := R or G or B; + inc( PtrUInt( Addr ), BPP ); + end; + inc( PtrUInt( Addr ), ModX ); + end; + end; + end; + SDL_UnlockSurface( DstSurface ); + end; +end; + +procedure SDL_FillRectSub( DstSurface : PSDL_Surface; dstrect : PSDL_Rect; color : UInt32 ); +var + RealRect : TSDL_Rect; + Addr : pointer; + ModX, BPP : cardinal; + x, y, R, G, B, SrcColor : cardinal; +begin + RealRect := ValidateSurfaceRect( DstSurface, DstRect ); + if ( RealRect.w > 0 ) and ( RealRect.h > 0 ) then + begin + SDL_LockSurface( DstSurface ); + BPP := DstSurface.format.BytesPerPixel; + with DstSurface^ do + begin + Addr := pointer( PtrUInt( pixels ) + UInt32( RealRect.y ) * pitch + UInt32( RealRect.x ) * BPP ); + ModX := Pitch - UInt32( RealRect.w ) * BPP; + end; + case DstSurface.format.BitsPerPixel of + 8 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $E0 - Color and $E0; + G := SrcColor and $1C - Color and $1C; + B := SrcColor and $03 - Color and $03; + if R > $E0 then + R := 0; + if G > $1C then + G := 0; + if B > $03 then + B := 0; + PUInt8( Addr )^ := R or G or B; + inc( PtrUInt( Addr ), BPP ); + end; + inc( PtrUInt( Addr ), ModX ); + end; + end; + 15 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $7C00 - Color and $7C00; + G := SrcColor and $03E0 - Color and $03E0; + B := SrcColor and $001F - Color and $001F; + if R > $7C00 then + R := 0; + if G > $03E0 then + G := 0; + if B > $001F then + B := 0; + PUInt16( Addr )^ := R or G or B; + inc( PtrUInt( Addr ), BPP ); + end; + inc( PtrUInt( Addr ), ModX ); + end; + end; + 16 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $F800 - Color and $F800; + G := SrcColor and $07C0 - Color and $07C0; + B := SrcColor and $001F - Color and $001F; + if R > $F800 then + R := 0; + if G > $07C0 then + G := 0; + if B > $001F then + B := 0; + PUInt16( Addr )^ := R or G or B; + inc( PtrUInt( Addr ), BPP ); + end; + inc( PtrUInt( Addr ), ModX ); + end; + end; + 24 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $00FF0000 - Color and $00FF0000; + G := SrcColor and $0000FF00 - Color and $0000FF00; + B := SrcColor and $000000FF - Color and $000000FF; + if R > $FF0000 then + R := 0; + if G > $00FF00 then + G := 0; + if B > $0000FF then + B := 0; + PUInt32( Addr )^ := SrcColor and $FF000000 or R or G or B; + inc( PtrUInt( Addr ), BPP ); + end; + inc( PtrUInt( Addr ), ModX ); + end; + end; + 32 : + begin + for y := 0 to RealRect.h - 1 do + begin + for x := 0 to RealRect.w - 1 do + begin + SrcColor := PUInt32( Addr )^; + R := SrcColor and $00FF0000 - Color and $00FF0000; + G := SrcColor and $0000FF00 - Color and $0000FF00; + B := SrcColor and $000000FF - Color and $000000FF; + if R > $FF0000 then + R := 0; + if G > $00FF00 then + G := 0; + if B > $0000FF then + B := 0; + PUInt32( Addr )^ := R or G or B; + inc( PtrUInt( Addr ), BPP ); + end; + inc( PtrUInt( Addr ), ModX ); + end; + end; + end; + SDL_UnlockSurface( DstSurface ); + end; +end; + +procedure SDL_GradientFillRect( DstSurface : PSDL_Surface; const Rect : PSDL_Rect; const StartColor, EndColor : TSDL_Color; const Style : TGradientStyle ); +var + FBC : array[ 0..255 ] of Cardinal; + // temp vars + i, YR, YG, YB, SR, SG, SB, DR, DG, DB : Integer; + + TempStepV, TempStepH : Single; + TempLeft, TempTop, TempHeight, TempWidth : integer; + TempRect : TSDL_Rect; + +begin + // calc FBC + YR := StartColor.r; + YG := StartColor.g; + YB := StartColor.b; + SR := YR; + SG := YG; + SB := YB; + DR := EndColor.r - SR; + DG := EndColor.g - SG; + DB := EndColor.b - SB; + + for i := 0 to 255 do + begin + FBC[ i ] := SDL_MapRGB( DstSurface.format, YR, YG, YB ); + YR := SR + round( DR / 255 * i ); + YG := SG + round( DG / 255 * i ); + YB := SB + round( DB / 255 * i ); + end; + + // if aStyle = 1 then begin + TempStepH := Rect.w / 255; + TempStepV := Rect.h / 255; + TempHeight := Trunc( TempStepV + 1 ); + TempWidth := Trunc( TempStepH + 1 ); + TempTop := 0; + TempLeft := 0; + TempRect.x := Rect.x; + TempRect.y := Rect.y; + TempRect.h := Rect.h; + TempRect.w := Rect.w; + + case Style of + gsHorizontal : + begin + TempRect.h := TempHeight; + for i := 0 to 255 do + begin + TempRect.y := Rect.y + TempTop; + SDL_FillRect( DstSurface, @TempRect, FBC[ i ] ); + TempTop := Trunc( TempStepV * i ); + end; + end; + gsVertical : + begin + TempRect.w := TempWidth; + for i := 0 to 255 do + begin + TempRect.x := Rect.x + TempLeft; + SDL_FillRect( DstSurface, @TempRect, FBC[ i ] ); + TempLeft := Trunc( TempStepH * i ); + end; + end; + end; +end; + +procedure SDL_2xBlit( Src, Dest : PSDL_Surface ); +var + ReadAddr, WriteAddr, ReadRow, WriteRow : PtrUInt; + SrcPitch, DestPitch, x, y : UInt32; +begin + if ( Src = nil ) or ( Dest = nil ) then + exit; + if ( Src.w shl 1 ) < Dest.w then + exit; + if ( Src.h shl 1 ) < Dest.h then + exit; + + if SDL_MustLock( Src ) then + SDL_LockSurface( Src ); + if SDL_MustLock( Dest ) then + SDL_LockSurface( Dest ); + + ReadRow := PtrUInt( Src.Pixels ); + WriteRow := PtrUInt( Dest.Pixels ); + + SrcPitch := Src.pitch; + DestPitch := Dest.pitch; + + case Src.format.BytesPerPixel of + 1 : for y := 1 to Src.h do + begin + ReadAddr := ReadRow; + WriteAddr := WriteRow; + for x := 1 to Src.w do + begin + PUInt8( WriteAddr )^ := PUInt8( ReadAddr )^; + PUInt8( WriteAddr + 1 )^ := PUInt8( ReadAddr )^; + PUInt8( WriteAddr + DestPitch )^ := PUInt8( ReadAddr )^; + PUInt8( WriteAddr + DestPitch + 1 )^ := PUInt8( ReadAddr )^; + inc( ReadAddr ); + inc( WriteAddr, 2 ); + end; + inc( PtrUInt( ReadRow ), SrcPitch ); + inc( PtrUInt( WriteRow ), DestPitch * 2 ); + end; + 2 : for y := 1 to Src.h do + begin + ReadAddr := ReadRow; + WriteAddr := WriteRow; + for x := 1 to Src.w do + begin + PUInt16( WriteAddr )^ := PUInt16( ReadAddr )^; + PUInt16( WriteAddr + 2 )^ := PUInt16( ReadAddr )^; + PUInt16( WriteAddr + DestPitch )^ := PUInt16( ReadAddr )^; + PUInt16( WriteAddr + DestPitch + 2 )^ := PUInt16( ReadAddr )^; + inc( ReadAddr, 2 ); + inc( WriteAddr, 4 ); + end; + inc( PtrUInt( ReadRow ), SrcPitch ); + inc( PtrUInt( WriteRow ), DestPitch * 2 ); + end; + 3 : for y := 1 to Src.h do + begin + ReadAddr := ReadRow; + WriteAddr := WriteRow; + for x := 1 to Src.w do + begin + PUInt32( WriteAddr )^ := ( PUInt32( WriteAddr )^ and $FF000000 ) or ( PUInt32( ReadAddr )^ and $00FFFFFF ); + PUInt32( WriteAddr + 3 )^ := ( PUInt32( WriteAddr + 3 )^ and $FF000000 ) or ( PUInt32( ReadAddr )^ and $00FFFFFF ); + PUInt32( WriteAddr + DestPitch )^ := ( PUInt32( WriteAddr + DestPitch )^ and $FF000000 ) or ( PUInt32( ReadAddr )^ and $00FFFFFF ); + PUInt32( WriteAddr + DestPitch + 3 )^ := ( PUInt32( WriteAddr + DestPitch + 3 )^ and $FF000000 ) or ( PUInt32( ReadAddr )^ and $00FFFFFF ); + inc( ReadAddr, 3 ); + inc( WriteAddr, 6 ); + end; + inc( PtrUInt( ReadRow ), SrcPitch ); + inc( PtrUInt( WriteRow ), DestPitch * 2 ); + end; + 4 : for y := 1 to Src.h do + begin + ReadAddr := ReadRow; + WriteAddr := WriteRow; + for x := 1 to Src.w do + begin + PUInt32( WriteAddr )^ := PUInt32( ReadAddr )^; + PUInt32( WriteAddr + 4 )^ := PUInt32( ReadAddr )^; + PUInt32( WriteAddr + DestPitch )^ := PUInt32( ReadAddr )^; + PUInt32( WriteAddr + DestPitch + 4 )^ := PUInt32( ReadAddr )^; + inc( ReadAddr, 4 ); + inc( WriteAddr, 8 ); + end; + inc( PtrUInt( ReadRow ), SrcPitch ); + inc( PtrUInt( WriteRow ), DestPitch * 2 ); + end; + end; + + if SDL_MustLock( Src ) then + SDL_UnlockSurface( Src ); + if SDL_MustLock( Dest ) then + SDL_UnlockSurface( Dest ); +end; + +procedure SDL_Scanline2xBlit( Src, Dest : PSDL_Surface ); +var + ReadAddr, WriteAddr, ReadRow, WriteRow : PtrUInt; + SrcPitch, DestPitch, x, y : UInt32; +begin + if ( Src = nil ) or ( Dest = nil ) then + exit; + if ( Src.w shl 1 ) < Dest.w then + exit; + if ( Src.h shl 1 ) < Dest.h then + exit; + + if SDL_MustLock( Src ) then + SDL_LockSurface( Src ); + if SDL_MustLock( Dest ) then + SDL_LockSurface( Dest ); + + ReadRow := PtrUInt( Src.Pixels ); + WriteRow := PtrUInt( Dest.Pixels ); + + SrcPitch := Src.pitch; + DestPitch := Dest.pitch; + + case Src.format.BytesPerPixel of + 1 : for y := 1 to Src.h do + begin + ReadAddr := ReadRow; + WriteAddr := WriteRow; + for x := 1 to Src.w do + begin + PUInt8( WriteAddr )^ := PUInt8( ReadAddr )^; + PUInt8( WriteAddr + 1 )^ := PUInt8( ReadAddr )^; + inc( ReadAddr ); + inc( WriteAddr, 2 ); + end; + inc( PtrUInt( ReadRow ), SrcPitch ); + inc( PtrUInt( WriteRow ), DestPitch * 2 ); + end; + 2 : for y := 1 to Src.h do + begin + ReadAddr := ReadRow; + WriteAddr := WriteRow; + for x := 1 to Src.w do + begin + PUInt16( WriteAddr )^ := PUInt16( ReadAddr )^; + PUInt16( WriteAddr + 2 )^ := PUInt16( ReadAddr )^; + inc( ReadAddr, 2 ); + inc( WriteAddr, 4 ); + end; + inc( PtrUInt( ReadRow ), SrcPitch ); + inc( PtrUInt( WriteRow ), DestPitch * 2 ); + end; + 3 : for y := 1 to Src.h do + begin + ReadAddr := ReadRow; + WriteAddr := WriteRow; + for x := 1 to Src.w do + begin + PUInt32( WriteAddr )^ := ( PUInt32( WriteAddr )^ and $FF000000 ) or ( PUInt32( ReadAddr )^ and $00FFFFFF ); + PUInt32( WriteAddr + 3 )^ := ( PUInt32( WriteAddr + 3 )^ and $FF000000 ) or ( PUInt32( ReadAddr )^ and $00FFFFFF ); + inc( ReadAddr, 3 ); + inc( WriteAddr, 6 ); + end; + inc( PtrUInt( ReadRow ), SrcPitch ); + inc( PtrUInt( WriteRow ), DestPitch * 2 ); + end; + 4 : for y := 1 to Src.h do + begin + ReadAddr := ReadRow; + WriteAddr := WriteRow; + for x := 1 to Src.w do + begin + PUInt32( WriteAddr )^ := PUInt32( ReadAddr )^; + PUInt32( WriteAddr + 4 )^ := PUInt32( ReadAddr )^; + inc( ReadAddr, 4 ); + inc( WriteAddr, 8 ); + end; + inc( PtrUInt( ReadRow ), SrcPitch ); + inc( PtrUInt( WriteRow ), DestPitch * 2 ); + end; + end; + + if SDL_MustLock( Src ) then + SDL_UnlockSurface( Src ); + if SDL_MustLock( Dest ) then + SDL_UnlockSurface( Dest ); +end; + +procedure SDL_50Scanline2xBlit( Src, Dest : PSDL_Surface ); +var + ReadAddr, WriteAddr, ReadRow, WriteRow : PtrUInt; + SrcPitch, DestPitch, x, y, Color : UInt32; +begin + if ( Src = nil ) or ( Dest = nil ) then + exit; + if ( Src.w shl 1 ) < Dest.w then + exit; + if ( Src.h shl 1 ) < Dest.h then + exit; + + if SDL_MustLock( Src ) then + SDL_LockSurface( Src ); + if SDL_MustLock( Dest ) then + SDL_LockSurface( Dest ); + + ReadRow := PtrUInt( Src.Pixels ); + WriteRow := PtrUInt( Dest.Pixels ); + + SrcPitch := Src.pitch; + DestPitch := Dest.pitch; + + case Src.format.BitsPerPixel of + 8 : for y := 1 to Src.h do + begin + ReadAddr := ReadRow; + WriteAddr := WriteRow; + for x := 1 to Src.w do + begin + Color := PUInt8( ReadAddr )^; + PUInt8( WriteAddr )^ := Color; + PUInt8( WriteAddr + 1 )^ := Color; + Color := ( Color shr 1 ) and $6D; {%01101101} + PUInt8( WriteAddr + DestPitch )^ := Color; + PUInt8( WriteAddr + DestPitch + 1 )^ := Color; + inc( ReadAddr ); + inc( WriteAddr, 2 ); + end; + inc( PtrUInt( ReadRow ), SrcPitch ); + inc( PtrUInt( WriteRow ), DestPitch * 2 ); + end; + 15 : for y := 1 to Src.h do + begin + ReadAddr := ReadRow; + WriteAddr := WriteRow; + for x := 1 to Src.w do + begin + Color := PUInt16( ReadAddr )^; + PUInt16( WriteAddr )^ := Color; + PUInt16( WriteAddr + 2 )^ := Color; + Color := ( Color shr 1 ) and $3DEF; {%0011110111101111} + PUInt16( WriteAddr + DestPitch )^ := Color; + PUInt16( WriteAddr + DestPitch + 2 )^ := Color; + inc( ReadAddr, 2 ); + inc( WriteAddr, 4 ); + end; + inc( PtrUInt( ReadRow ), SrcPitch ); + inc( PtrUInt( WriteRow ), DestPitch * 2 ); + end; + 16 : for y := 1 to Src.h do + begin + ReadAddr := ReadRow; + WriteAddr := WriteRow; + for x := 1 to Src.w do + begin + Color := PUInt16( ReadAddr )^; + PUInt16( WriteAddr )^ := Color; + PUInt16( WriteAddr + 2 )^ := Color; + Color := ( Color shr 1 ) and $7BEF; {%0111101111101111} + PUInt16( WriteAddr + DestPitch )^ := Color; + PUInt16( WriteAddr + DestPitch + 2 )^ := Color; + inc( ReadAddr, 2 ); + inc( WriteAddr, 4 ); + end; + inc( PtrUInt( ReadRow ), SrcPitch ); + inc( PtrUInt( WriteRow ), DestPitch * 2 ); + end; + 24 : for y := 1 to Src.h do + begin + ReadAddr := ReadRow; + WriteAddr := WriteRow; + for x := 1 to Src.w do + begin + Color := ( PUInt32( WriteAddr )^ and $FF000000 ) or ( PUInt32( ReadAddr )^ and $00FFFFFF ); + PUInt32( WriteAddr )^ := Color; + PUInt32( WriteAddr + 3 )^ := Color; + Color := ( Color shr 1 ) and $007F7F7F; {%011111110111111101111111} + PUInt32( WriteAddr + DestPitch )^ := Color; + PUInt32( WriteAddr + DestPitch + 3 )^ := Color; + inc( ReadAddr, 3 ); + inc( WriteAddr, 6 ); + end; + inc( PtrUInt( ReadRow ), SrcPitch ); + inc( PtrUInt( WriteRow ), DestPitch * 2 ); + end; + 32 : for y := 1 to Src.h do + begin + ReadAddr := ReadRow; + WriteAddr := WriteRow; + for x := 1 to Src.w do + begin + Color := PUInt32( ReadAddr )^; + PUInt32( WriteAddr )^ := Color; + PUInt32( WriteAddr + 4 )^ := Color; + Color := ( Color shr 1 ) and $7F7F7F7F; + PUInt32( WriteAddr + DestPitch )^ := Color; + PUInt32( WriteAddr + DestPitch + 4 )^ := Color; + inc( ReadAddr, 4 ); + inc( WriteAddr, 8 ); + end; + inc( PtrUInt( ReadRow ), SrcPitch ); + inc( PtrUInt( WriteRow ), DestPitch * 2 ); + end; + end; + + if SDL_MustLock( Src ) then + SDL_UnlockSurface( Src ); + if SDL_MustLock( Dest ) then + SDL_UnlockSurface( Dest ); +end; + +function SDL_PixelTestSurfaceVsRect( SrcSurface1 : PSDL_Surface; SrcRect1 : + PSDL_Rect; SrcRect2 : PSDL_Rect; Left1, Top1, Left2, Top2 : integer ) : + boolean; +var + Src_Rect1, Src_Rect2 : TSDL_Rect; + right1, bottom1 : integer; + right2, bottom2 : integer; + Scan1Start, {Scan2Start,} ScanWidth, ScanHeight : cardinal; + Mod1 : cardinal; + Addr1 : PtrUInt; + BPP : cardinal; + Pitch1 : cardinal; + TransparentColor1 : cardinal; + tx, ty : cardinal; +// StartTick : cardinal; // Auto Removed, Unused Variable + Color1 : cardinal; +begin + Result := false; + if SrcRect1 = nil then + begin + with Src_Rect1 do + begin + x := 0; + y := 0; + w := SrcSurface1.w; + h := SrcSurface1.h; + end; + end + else + Src_Rect1 := SrcRect1^; + + Src_Rect2 := SrcRect2^; + with Src_Rect1 do + begin + Right1 := Left1 + w; + Bottom1 := Top1 + h; + end; + with Src_Rect2 do + begin + Right2 := Left2 + w; + Bottom2 := Top2 + h; + end; + if ( Left1 >= Right2 ) or ( Right1 <= Left2 ) or ( Top1 >= Bottom2 ) or ( Bottom1 <= Top2 ) then + exit; + if Left1 <= Left2 then + begin + // 1. left, 2. right + Scan1Start := Src_Rect1.x + Left2 - Left1; + //Scan2Start := Src_Rect2.x; + ScanWidth := Right1 - Left2; + with Src_Rect2 do + if ScanWidth > w then + ScanWidth := w; + end + else + begin + // 1. right, 2. left + Scan1Start := Src_Rect1.x; + //Scan2Start := Src_Rect2.x + Left1 - Left2; + ScanWidth := Right2 - Left1; + with Src_Rect1 do + if ScanWidth > w then + ScanWidth := w; + end; + with SrcSurface1^ do + begin + Pitch1 := Pitch; + Addr1 := PtrUInt( Pixels ); + inc( Addr1, Pitch1 * UInt32( Src_Rect1.y ) ); + with format^ do + begin + BPP := BytesPerPixel; + TransparentColor1 := colorkey; + end; + end; + + Mod1 := Pitch1 - ( ScanWidth * BPP ); + + inc( Addr1, BPP * Scan1Start ); + + if Top1 <= Top2 then + begin + // 1. up, 2. down + ScanHeight := Bottom1 - Top2; + if ScanHeight > Src_Rect2.h then + ScanHeight := Src_Rect2.h; + inc( Addr1, Pitch1 * UInt32( Top2 - Top1 ) ); + end + else + begin + // 1. down, 2. up + ScanHeight := Bottom2 - Top1; + if ScanHeight > Src_Rect1.h then + ScanHeight := Src_Rect1.h; + + end; + case BPP of + 1 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + if ( PByte( Addr1 )^ <> TransparentColor1 ) then + begin + Result := true; + exit; + end; + inc( Addr1 ); + + end; + inc( Addr1, Mod1 ); + + end; + 2 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + if ( PWord( Addr1 )^ <> TransparentColor1 ) then + begin + Result := true; + exit; + end; + inc( Addr1, 2 ); + + end; + inc( Addr1, Mod1 ); + + end; + 3 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + Color1 := PLongWord( Addr1 )^ and $00FFFFFF; + + if ( Color1 <> TransparentColor1 ) + then + begin + Result := true; + exit; + end; + inc( Addr1, 3 ); + + end; + inc( Addr1, Mod1 ); + + end; + 4 : + for ty := 1 to ScanHeight do + begin + for tx := 1 to ScanWidth do + begin + if ( PLongWord( Addr1 )^ <> TransparentColor1 ) then + begin + Result := true; + exit; + end; + inc( Addr1, 4 ); + + end; + inc( Addr1, Mod1 ); + + end; + end; +end; + +procedure SDL_ORSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); +var +{*R, *}{*G, *}{*B, *}Pixel1, Pixel2, TransparentColor : cardinal; // Auto Removed, Unused Variable (R) // Auto Removed, Unused Variable (G) // Auto Removed, Unused Variable (B) + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr : PtrUInt; + WorkX, WorkY : word; + SrcMod, DestMod : cardinal; + Bits : cardinal; +begin + if ( SrcSurface = nil ) or ( DestSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DestSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + TransparentColor := Format.colorkey; + end; + with DestSurface^ do + begin + DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + Bits := Format.BitsPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DestSurface ); + WorkY := Src.h; + case bits of + 8 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt8( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt8( DestAddr )^; + PUInt8( DestAddr )^ := Pixel2 or Pixel1; + end; + inc( SrcAddr ); + inc( DestAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 15 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + + PUInt16( DestAddr )^ := Pixel2 or Pixel1; + + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 16 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + + PUInt16( DestAddr )^ := Pixel2 or Pixel1; + + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 24 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF; + + PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or Pixel2 or Pixel1; + end; + inc( SrcAddr, 3 ); + inc( DestAddr, 3 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 32 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^; + + PUInt32( DestAddr )^ := Pixel2 or Pixel1; + end; + inc( SrcAddr, 4 ); + inc( DestAddr, 4 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DestSurface ); +end; + +procedure SDL_ANDSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); +var +{*R, *}{*G, *}{*B, *}Pixel1, Pixel2, TransparentColor : cardinal; // Auto Removed, Unused Variable (R) // Auto Removed, Unused Variable (G) // Auto Removed, Unused Variable (B) + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr : PtrUInt; + WorkX, WorkY : word; + SrcMod, DestMod : cardinal; + Bits : cardinal; +begin + if ( SrcSurface = nil ) or ( DestSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DestSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + TransparentColor := Format.colorkey; + end; + with DestSurface^ do + begin + DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + Bits := Format.BitsPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DestSurface ); + WorkY := Src.h; + case bits of + 8 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt8( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt8( DestAddr )^; + PUInt8( DestAddr )^ := Pixel2 and Pixel1; + end; + inc( SrcAddr ); + inc( DestAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 15 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + + PUInt16( DestAddr )^ := Pixel2 and Pixel1; + + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 16 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + + PUInt16( DestAddr )^ := Pixel2 and Pixel1; + + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 24 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF; + + PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or Pixel2 and Pixel1; + end; + inc( SrcAddr, 3 ); + inc( DestAddr, 3 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 32 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^; + + PUInt32( DestAddr )^ := Pixel2 and Pixel1; + end; + inc( SrcAddr, 4 ); + inc( DestAddr, 4 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DestSurface ); +end; + + + +procedure SDL_GTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); +var + R, G, B, Pixel1, Pixel2, TransparentColor : cardinal; + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr : PtrUInt; + WorkX, WorkY : word; + SrcMod, DestMod : cardinal; + Bits : cardinal; +begin + if ( SrcSurface = nil ) or ( DestSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DestSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + TransparentColor := Format.colorkey; + end; + with DestSurface^ do + begin + DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + Bits := Format.BitsPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DestSurface ); + WorkY := Src.h; + case bits of + 8 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt8( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt8( DestAddr )^; + if Pixel2 > 0 then + begin + if Pixel2 and $E0 > Pixel1 and $E0 then + R := Pixel2 and $E0 + else + R := Pixel1 and $E0; + if Pixel2 and $1C > Pixel1 and $1C then + G := Pixel2 and $1C + else + G := Pixel1 and $1C; + if Pixel2 and $03 > Pixel1 and $03 then + B := Pixel2 and $03 + else + B := Pixel1 and $03; + + if R > $E0 then + R := $E0; + if G > $1C then + G := $1C; + if B > $03 then + B := $03; + PUInt8( DestAddr )^ := R or G or B; + end + else + PUInt8( DestAddr )^ := Pixel1; + end; + inc( SrcAddr ); + inc( DestAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 15 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + if Pixel2 > 0 then + begin + + if Pixel2 and $7C00 > Pixel1 and $7C00 then + R := Pixel2 and $7C00 + else + R := Pixel1 and $7C00; + if Pixel2 and $03E0 > Pixel1 and $03E0 then + G := Pixel2 and $03E0 + else + G := Pixel1 and $03E0; + if Pixel2 and $001F > Pixel1 and $001F then + B := Pixel2 and $001F + else + B := Pixel1 and $001F; + + PUInt16( DestAddr )^ := R or G or B; + end + else + PUInt16( DestAddr )^ := Pixel1; + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 16 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + if Pixel2 > 0 then + begin + + if Pixel2 and $F800 > Pixel1 and $F800 then + R := Pixel2 and $F800 + else + R := Pixel1 and $F800; + if Pixel2 and $07E0 > Pixel1 and $07E0 then + G := Pixel2 and $07E0 + else + G := Pixel1 and $07E0; + if Pixel2 and $001F > Pixel1 and $001F then + B := Pixel2 and $001F + else + B := Pixel1 and $001F; + + PUInt16( DestAddr )^ := R or G or B; + end + else + PUInt16( DestAddr )^ := Pixel1; + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 24 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF; + if Pixel2 > 0 then + begin + + if Pixel2 and $FF0000 > Pixel1 and $FF0000 then + R := Pixel2 and $FF0000 + else + R := Pixel1 and $FF0000; + if Pixel2 and $00FF00 > Pixel1 and $00FF00 then + G := Pixel2 and $00FF00 + else + G := Pixel1 and $00FF00; + if Pixel2 and $0000FF > Pixel1 and $0000FF then + B := Pixel2 and $0000FF + else + B := Pixel1 and $0000FF; + + PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or ( R or G or B ); + end + else + PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or Pixel1; + end; + inc( SrcAddr, 3 ); + inc( DestAddr, 3 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 32 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^; + if Pixel2 > 0 then + begin + + if Pixel2 and $FF0000 > Pixel1 and $FF0000 then + R := Pixel2 and $FF0000 + else + R := Pixel1 and $FF0000; + if Pixel2 and $00FF00 > Pixel1 and $00FF00 then + G := Pixel2 and $00FF00 + else + G := Pixel1 and $00FF00; + if Pixel2 and $0000FF > Pixel1 and $0000FF then + B := Pixel2 and $0000FF + else + B := Pixel1 and $0000FF; + + PUInt32( DestAddr )^ := R or G or B; + end + else + PUInt32( DestAddr )^ := Pixel1; + end; + inc( SrcAddr, 4 ); + inc( DestAddr, 4 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DestSurface ); +end; + + +procedure SDL_LTSurface( SrcSurface : PSDL_Surface; SrcRect : PSDL_Rect; + DestSurface : PSDL_Surface; DestRect : PSDL_Rect ); +var + R, G, B, Pixel1, Pixel2, TransparentColor : cardinal; + Src, Dest : TSDL_Rect; + Diff : integer; + SrcAddr, DestAddr : PtrUInt; + WorkX, WorkY : word; + SrcMod, DestMod : cardinal; + Bits : cardinal; +begin + if ( SrcSurface = nil ) or ( DestSurface = nil ) then + exit; // Remove this to make it faster + if ( SrcSurface.Format.BitsPerPixel <> DestSurface.Format.BitsPerPixel ) then + exit; // Remove this to make it faster + if SrcRect = nil then + begin + with Src do + begin + x := 0; + y := 0; + w := SrcSurface.w; + h := SrcSurface.h; + end; + end + else + Src := SrcRect^; + if DestRect = nil then + begin + Dest.x := 0; + Dest.y := 0; + end + else + Dest := DestRect^; + Dest.w := Src.w; + Dest.h := Src.h; + with DestSurface.Clip_Rect do + begin + // Source's right side is greater than the dest.cliprect + if Dest.x + Src.w > x + w then + begin + smallint( Src.w ) := x + w - Dest.x; + smallint( Dest.w ) := x + w - Dest.x; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's bottom side is greater than the dest.clip + if Dest.y + Src.h > y + h then + begin + smallint( Src.h ) := y + h - Dest.y; + smallint( Dest.h ) := y + h - Dest.y; + if smallint( Dest.h ) < 1 then + exit; + end; + // Source's left side is less than the dest.clip + if Dest.x < x then + begin + Diff := x - Dest.x; + Src.x := Src.x + Diff; + smallint( Src.w ) := smallint( Src.w ) - Diff; + Dest.x := x; + smallint( Dest.w ) := smallint( Dest.w ) - Diff; + if smallint( Dest.w ) < 1 then + exit; + end; + // Source's Top side is less than the dest.clip + if Dest.y < y then + begin + Diff := y - Dest.y; + Src.y := Src.y + Diff; + smallint( Src.h ) := smallint( Src.h ) - Diff; + Dest.y := y; + smallint( Dest.h ) := smallint( Dest.h ) - Diff; + if smallint( Dest.h ) < 1 then + exit; + end; + end; + with SrcSurface^ do + begin + SrcAddr := PtrUInt( Pixels ) + UInt32( Src.y ) * Pitch + UInt32( Src.x ) * + Format.BytesPerPixel; + SrcMod := Pitch - Src.w * Format.BytesPerPixel; + TransparentColor := Format.colorkey; + end; + with DestSurface^ do + begin + DestAddr := PtrUInt( Pixels ) + UInt32( Dest.y ) * Pitch + UInt32( Dest.x ) * + Format.BytesPerPixel; + DestMod := Pitch - Dest.w * Format.BytesPerPixel; + Bits := Format.BitsPerPixel; + end; + SDL_LockSurface( SrcSurface ); + SDL_LockSurface( DestSurface ); + WorkY := Src.h; + case bits of + 8 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt8( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt8( DestAddr )^; + if Pixel2 > 0 then + begin + if Pixel2 and $E0 < Pixel1 and $E0 then + R := Pixel2 and $E0 + else + R := Pixel1 and $E0; + if Pixel2 and $1C < Pixel1 and $1C then + G := Pixel2 and $1C + else + G := Pixel1 and $1C; + if Pixel2 and $03 < Pixel1 and $03 then + B := Pixel2 and $03 + else + B := Pixel1 and $03; + + if R > $E0 then + R := $E0; + if G > $1C then + G := $1C; + if B > $03 then + B := $03; + PUInt8( DestAddr )^ := R or G or B; + end + else + PUInt8( DestAddr )^ := Pixel1; + end; + inc( SrcAddr ); + inc( DestAddr ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 15 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + if Pixel2 > 0 then + begin + + if Pixel2 and $7C00 < Pixel1 and $7C00 then + R := Pixel2 and $7C00 + else + R := Pixel1 and $7C00; + if Pixel2 and $03E0 < Pixel1 and $03E0 then + G := Pixel2 and $03E0 + else + G := Pixel1 and $03E0; + if Pixel2 and $001F < Pixel1 and $001F then + B := Pixel2 and $001F + else + B := Pixel1 and $001F; + + PUInt16( DestAddr )^ := R or G or B; + end + else + PUInt16( DestAddr )^ := Pixel1; + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 16 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt16( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt16( DestAddr )^; + if Pixel2 > 0 then + begin + + if Pixel2 and $F800 < Pixel1 and $F800 then + R := Pixel2 and $F800 + else + R := Pixel1 and $F800; + if Pixel2 and $07E0 < Pixel1 and $07E0 then + G := Pixel2 and $07E0 + else + G := Pixel1 and $07E0; + if Pixel2 and $001F < Pixel1 and $001F then + B := Pixel2 and $001F + else + B := Pixel1 and $001F; + + PUInt16( DestAddr )^ := R or G or B; + end + else + PUInt16( DestAddr )^ := Pixel1; + end; + inc( SrcAddr, 2 ); + inc( DestAddr, 2 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 24 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^ and $00FFFFFF; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^ and $00FFFFFF; + if Pixel2 > 0 then + begin + + if Pixel2 and $FF0000 < Pixel1 and $FF0000 then + R := Pixel2 and $FF0000 + else + R := Pixel1 and $FF0000; + if Pixel2 and $00FF00 < Pixel1 and $00FF00 then + G := Pixel2 and $00FF00 + else + G := Pixel1 and $00FF00; + if Pixel2 and $0000FF < Pixel1 and $0000FF then + B := Pixel2 and $0000FF + else + B := Pixel1 and $0000FF; + + PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or ( R or G or B ); + end + else + PUInt32( DestAddr )^ := PUInt32( DestAddr )^ and $FF000000 or Pixel1; + end; + inc( SrcAddr, 3 ); + inc( DestAddr, 3 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + 32 : + begin + repeat + WorkX := Src.w; + repeat + Pixel1 := PUInt32( SrcAddr )^; + if ( Pixel1 <> TransparentColor ) and ( Pixel1 <> 0 ) then + begin + Pixel2 := PUInt32( DestAddr )^; + if Pixel2 > 0 then + begin + + if Pixel2 and $FF0000 < Pixel1 and $FF0000 then + R := Pixel2 and $FF0000 + else + R := Pixel1 and $FF0000; + if Pixel2 and $00FF00 < Pixel1 and $00FF00 then + G := Pixel2 and $00FF00 + else + G := Pixel1 and $00FF00; + if Pixel2 and $0000FF < Pixel1 and $0000FF then + B := Pixel2 and $0000FF + else + B := Pixel1 and $0000FF; + + PUInt32( DestAddr )^ := R or G or B; + end + else + PUInt32( DestAddr )^ := Pixel1; + end; + inc( SrcAddr, 4 ); + inc( DestAddr, 4 ); + dec( WorkX ); + until WorkX = 0; + inc( SrcAddr, SrcMod ); + inc( DestAddr, DestMod ); + dec( WorkY ); + until WorkY = 0; + end; + end; + SDL_UnlockSurface( SrcSurface ); + SDL_UnlockSurface( DestSurface ); +end; + +// Will clip the x1,x2,y1,x2 params to the ClipRect provided + +function SDL_ClipLine( var x1, y1, x2, y2 : Integer; ClipRect : PSDL_Rect ) : boolean; +var + tflag, flag1, flag2 : word; + txy, xedge, yedge : Integer; + slope : single; + + function ClipCode( x, y : Integer ) : word; + begin + Result := 0; + if x < ClipRect.x then + Result := 1; + if x >= ClipRect.w + ClipRect.x then + Result := Result or 2; + if y < ClipRect.y then + Result := Result or 4; + if y >= ClipRect.h + ClipRect.y then + Result := Result or 8; + end; + +begin + flag1 := ClipCode( x1, y1 ); + flag2 := ClipCode( x2, y2 ); + result := true; + + while true do + begin + if ( flag1 or flag2 ) = 0 then + Exit; // all in + + if ( flag1 and flag2 ) <> 0 then + begin + result := false; + Exit; // all out + end; + + if flag2 = 0 then + begin + txy := x1; x1 := x2; x2 := txy; + txy := y1; y1 := y2; y2 := txy; + tflag := flag1; flag1 := flag2; flag2 := tflag; + end; + + if ( flag2 and 3 ) <> 0 then + begin + if ( flag2 and 1 ) <> 0 then + xedge := ClipRect.x + else + xedge := ClipRect.w + ClipRect.x - 1; // back 1 pixel otherwise we end up in a loop + + slope := ( y2 - y1 ) / ( x2 - x1 ); + y2 := y1 + Round( slope * ( xedge - x1 ) ); + x2 := xedge; + end + else + begin + if ( flag2 and 4 ) <> 0 then + yedge := ClipRect.y + else + yedge := ClipRect.h + ClipRect.y - 1; // up 1 pixel otherwise we end up in a loop + + slope := ( x2 - x1 ) / ( y2 - y1 ); + x2 := x1 + Round( slope * ( yedge - y1 ) ); + y2 := yedge; + end; + + flag2 := ClipCode( x2, y2 ); + end; +end; + +end. + diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlwindow.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlwindow.pas index ba60714b..99eea304 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlwindow.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlwindow.pas @@ -1,566 +1,566 @@ -unit sdlwindow;
-{
- $Id: sdlwindow.pas,v 1.9 2006/10/22 18:55:25 savage Exp $
-
-}
-{******************************************************************************}
-{ }
-{ JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer }
-{ SDL Window Wrapper }
-{ }
-{ }
-{ The initial developer of this Pascal code was : }
-{ Dominique Louis <Dominique@SavageSoftware.com.au> }
-{ }
-{ Portions created by Dominique Louis are }
-{ Copyright (C) 2004 - 2100 Dominique Louis. }
-{ }
-{ }
-{ Contributor(s) }
-{ -------------- }
-{ Dominique Louis <Dominique@SavageSoftware.com.au> }
-{ }
-{ Obtained through: }
-{ Joint Endeavour of Delphi Innovators ( Project JEDI ) }
-{ }
-{ You may retrieve the latest version of this file at the Project }
-{ JEDI home page, located at http://delphi-jedi.org }
-{ }
-{ The contents of this file are used with permission, subject to }
-{ the Mozilla Public License Version 1.1 (the "License"); you may }
-{ not use this file except in compliance with the License. You may }
-{ obtain a copy of the License at }
-{ http://www.mozilla.org/MPL/MPL-1.1.html }
-{ }
-{ Software distributed under the License is distributed on an }
-{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or }
-{ implied. See the License for the specific language governing }
-{ rights and limitations under the License. }
-{ }
-{ Description }
-{ ----------- }
-{ SDL Window Wrapper }
-{ }
-{ }
-{ Requires }
-{ -------- }
-{ SDL.dll on Windows platforms }
-{ libSDL-1.1.so.0 on Linux platform }
-{ }
-{ Programming Notes }
-{ ----------------- }
-{ }
-{ }
-{ }
-{ }
-{ Revision History }
-{ ---------------- }
-{ January 31 2003 - DL : Initial creation }
-{ }
-{
- $Log: sdlwindow.pas,v $
- Revision 1.9 2006/10/22 18:55:25 savage
- Slight Change to handle OpenGL context
-
- Revision 1.8 2005/08/03 18:57:32 savage
- Various updates and additions. Mainly to handle OpenGL 3D Window support and better cursor support for the mouse class
-
- Revision 1.7 2004/09/30 22:35:47 savage
- Changes, enhancements and additions as required to get SoAoS working.
-
- Revision 1.6 2004/09/12 21:52:58 savage
- Slight changes to fix some issues with the sdl classes.
-
- Revision 1.5 2004/05/10 21:11:49 savage
- changes required to help get SoAoS off the ground.
-
- Revision 1.4 2004/05/01 14:59:27 savage
- Updated code
-
- Revision 1.3 2004/04/23 10:45:28 savage
- Changes made by Dean Ellis to work more modularly.
-
- Revision 1.2 2004/03/31 10:06:41 savage
- Changed so that it now compiles, but is untested.
-
- Revision 1.1 2004/02/05 00:08:20 savage
- Module 1.0 release
-
-}
-{******************************************************************************}
-
-interface
-
-{$i jedi-sdl.inc}
-
-uses
- Classes,
- sdl,
- sdlinput,
- sdlticks;
-
-type
- TSDLNotifyEvent = procedure {$IFNDEF NOT_OO}of object{$ENDIF};
- TSDLUpdateEvent = procedure( aElapsedTime : single ) {$IFNDEF NOT_OO}of object{$ENDIF};
- TSDLResizeEvent = procedure( aWidth : integer; aHeight : integer; aBitDepth : integer; aVideoFlags : Uint32 ) {$IFNDEF NOT_OO}of object{$ENDIF};
- TSDLUserEvent = procedure( aType : UInt8; aCode : integer; aData1 : Pointer; aData2 : Pointer ) {$IFNDEF NOT_OO}of object{$ENDIF};
- TSDLActiveEvent = procedure( aGain: UInt8; aState: UInt8 ) {$IFNDEF NOT_OO}of object{$ENDIF};
-
- TSDLBaseWindow = class( TObject )
- private
- FDisplaySurface : PSDL_Surface;
- FVideoFlags : Uint32;
- FOnDestroy: TSDLNotifyEvent;
- FOnCreate: TSDLNotifyEvent;
- FOnShow: TSDLNotifyEvent;
- FOnResize: TSDLResizeEvent;
- FOnUpdate: TSDLUpdateEvent;
- FOnRender: TSDLNotifyEvent;
- FOnClose: TSDLNotifyEvent;
- FLoaded: Boolean;
- FRendering: Boolean;
- FHeight: integer;
- FBitDepth: integer;
- FWidth: integer;
- FInputManager: TSDLInputManager;
- FCaptionText : PChar;
- FIconName : PChar;
- FOnActive: TSDLActiveEvent;
- FOnQuit: TSDLNotifyEvent;
- FOnExpose: TSDLNotifyEvent;
- FOnUser: TSDLUserEvent;
- FTimer : TSDLTicks;
- protected
- procedure DoActive( aGain: UInt8; aState: UInt8 );
- procedure DoCreate;
- procedure DoClose;
- procedure DoDestroy;
- procedure DoUpdate( aElapsedTime : single );
- procedure DoQuit;
- procedure DoRender;
- procedure DoResize( aWidth : integer; aHeight : integer; aBitDepth : integer; aVideoFlags : Uint32 );
- procedure DoShow;
- procedure DoUser( aType : UInt8; aCode : integer; aData1 : Pointer; aData2 : Pointer );
- procedure DoExpose;
- procedure Render; virtual;
- procedure Update( aElapsedTime : single ); virtual;
- procedure InitialiseObjects; virtual;
- procedure RestoreObjects; virtual;
- procedure DeleteObjects; virtual;
- function Flip : integer; virtual;
- property OnActive : TSDLActiveEvent read FOnActive write FOnActive;
- property OnClose: TSDLNotifyEvent read FOnClose write FOnClose;
- property OnDestroy : TSDLNotifyEvent read FOnDestroy write FOnDestroy;
- property OnCreate : TSDLNotifyEvent read FOnCreate write FOnCreate;
- property OnUpdate: TSDLUpdateEvent read FOnUpdate write FOnUpdate;
- property OnQuit : TSDLNotifyEvent read FOnQuit write FOnQuit;
- property OnResize : TSDLResizeEvent read FOnResize write FOnResize;
- property OnRender: TSDLNotifyEvent read FOnRender write FOnRender;
- property OnShow : TSDLNotifyEvent read FOnShow write FOnShow;
- property OnUser : TSDLUserEvent read FOnUser write FOnUser;
- property OnExpose : TSDLNotifyEvent read FOnExpose write FOnExpose;
- property DisplaySurface: PSDL_Surface read FDisplaySurface;
- public
- property InputManager : TSDLInputManager read FInputManager;
- property Loaded : Boolean read FLoaded;
- property Width : integer read FWidth;
- property Height : integer read FHeight;
- property BitDepth : integer read FBitDepth;
- property Rendering : Boolean read FRendering write FRendering;
- procedure SetCaption( const aCaptionText : string; const aIconName : string );
- procedure GetCaption( var aCaptionText : string; var aIconName : string );
- procedure SetIcon( aIcon : PSDL_Surface; aMask: UInt8 );
- procedure ActivateVideoMode;
- constructor Create( aWidth : integer; aHeight : integer; aBitDepth : integer; aVideoFlags : Uint32 ); virtual;
- destructor Destroy; override;
- procedure InitialiseEnvironment;
- function Show : Boolean; virtual;
- end;
-
- TSDLCustomWindow = class( TSDLBaseWindow )
- public
- property OnCreate;
- property OnDestroy;
- property OnClose;
- property OnShow;
- property OnResize;
- property OnRender;
- property OnUpdate;
- property DisplaySurface;
- end;
-
- TSDL2DWindow = class( TSDLCustomWindow )
- public
- constructor Create( aWidth : integer; aHeight : integer; aBitDepth : integer; aVideoFlags : Uint32 = SDL_DOUBLEBUF or SDL_SWSURFACE); override;
- procedure Render; override;
- procedure Update( aElapsedTime : single ); override;
- procedure InitialiseObjects; override;
- procedure RestoreObjects; override;
- procedure DeleteObjects; override;
- function Flip : integer; override;
- end;
-
- TSDL3DWindow = class( TSDLCustomWindow )
- public
- constructor Create( aWidth : integer; aHeight : integer; aBitDepth : integer; aVideoFlags : Uint32 = SDL_OPENGL or SDL_DOUBLEBUF); override;
- function Flip : integer; override;
- procedure Render; override;
- procedure Update( aElapsedTime : single ); override;
- procedure InitialiseObjects; override;
- procedure RestoreObjects; override;
- procedure DeleteObjects; override;
- end;
-
-
-
-implementation
-
-uses
- logger,
- SysUtils;
-
-{ TSDLBaseWindow }
-procedure TSDLBaseWindow.ActivateVideoMode;
-begin
- FDisplaySurface := SDL_SetVideoMode( FWidth, FHeight, FBitDepth, FVideoFlags);
- if (FDisplaySurface = nil) then
- begin
- Log.LogError( Format('Could not set video mode: %s', [SDL_GetError]), 'Main');
- exit;
- end;
-
- SetCaption( 'Made with JEDI-SDL', 'JEDI-SDL Icon' );
-end;
-
-constructor TSDLBaseWindow.Create( aWidth : integer; aHeight : integer; aBitDepth : integer; aVideoFlags : Uint32 );
-begin
- inherited Create;
- SDL_Init(SDL_INIT_EVERYTHING);
- FInputManager := TSDLInputManager.Create( [ itJoystick, itKeyBoard, itMouse ]);
- FTimer := TSDLTicks.Create;
-
- FWidth := aWidth;
- FHeight := aHeight;
- FBitDepth := aBitDepth;
- FVideoFlags := aVideoFlags;
-
- DoCreate;
-end;
-
-procedure TSDLBaseWindow.DeleteObjects;
-begin
- FLoaded := False;
-end;
-
-destructor TSDLBaseWindow.Destroy;
-begin
- DoDestroy;
- if FLoaded then
- DeleteObjects;
- if FInputManager <> nil then
- FreeAndNil( FInputManager );
- if FTimer <> nil then
- FreeAndNil( FTimer );
- if FDisplaySurface <> nil then
- SDL_FreeSurface( FDisplaySurface );
- inherited Destroy;
- SDL_Quit;
-end;
-
-procedure TSDLBaseWindow.DoActive(aGain, aState: UInt8);
-begin
- if Assigned( FOnActive ) then
- begin
- FOnActive( aGain, aState );
- end;
-end;
-
-procedure TSDLBaseWindow.DoClose;
-begin
- if Assigned( FOnClose ) then
- begin
- FOnClose;
- end;
-end;
-
-procedure TSDLBaseWindow.DoCreate;
-begin
- if Assigned( FOnCreate ) then
- begin
- FOnCreate;
- end;
-end;
-
-procedure TSDLBaseWindow.DoDestroy;
-begin
- if Assigned( FOnDestroy ) then
- begin
- FOnDestroy;
- end;
-end;
-
-procedure TSDLBaseWindow.DoExpose;
-begin
- if Assigned( FOnExpose ) then
- begin
- FOnExpose;
- end;
-end;
-
-procedure TSDLBaseWindow.DoUpdate( aElapsedTime : single );
-begin
- if Assigned( FOnUpdate ) then
- begin
- FOnUpdate( aElapsedTime );
- end;
-end;
-
-procedure TSDLBaseWindow.DoQuit;
-begin
- FRendering := false;
- if Assigned( FOnQuit ) then
- begin
- FOnQuit;
- end;
-end;
-
-procedure TSDLBaseWindow.DoRender;
-begin
- if Assigned( FOnRender ) then
- begin
- FOnRender;
- end;
-end;
-
-procedure TSDLBaseWindow.DoResize( aWidth : integer; aHeight : integer; aBitDepth : integer; aVideoFlags : Uint32 );
-begin
- // resize to the new size
- SDL_FreeSurface(FDisplaySurface);
- FWidth := aWidth;
- FHeight := aHeight;
- FBitDepth := aBitDepth;
- FVideoFlags := aVideoFlags;
- FDisplaySurface := SDL_SetVideoMode(aWidth, aHeight, aBitDepth, aVideoFlags);
- if Assigned( FOnResize ) then
- begin
- FOnResize( aWidth, aHeight, aBitDepth, aVideoFlags );
- end;
-end;
-
-procedure TSDLBaseWindow.DoShow;
-begin
- if Assigned( FOnShow ) then
- begin
- FOnShow;
- end;
-end;
-
-procedure TSDLBaseWindow.DoUser(aType: UInt8; aCode: integer; aData1, aData2: Pointer);
-begin
- if Assigned( FOnUser ) then
- begin
- FOnUser( aType, aCode, aData1, aData2 );
- end;
-end;
-
-function TSDLBaseWindow.Flip : integer;
-begin
- result := 0;
-end;
-
-procedure TSDLBaseWindow.GetCaption( var aCaptionText : string; var aIconName : string );
-begin
- aCaptionText := string( FCaptionText );
- aIconName := string( FIconName );
-end;
-
-procedure TSDLBaseWindow.InitialiseEnvironment;
-begin
- InitialiseObjects;
- RestoreObjects;
-end;
-
-procedure TSDLBaseWindow.InitialiseObjects;
-begin
- FLoaded := True;
-end;
-
-procedure TSDLBaseWindow.Update( aElapsedTime : single );
-begin
- DoUpdate( aElapsedTime );
-end;
-
-procedure TSDLBaseWindow.Render;
-begin
- DoRender;
-end;
-
-procedure TSDLBaseWindow.RestoreObjects;
-begin
- FLoaded := false;
-end;
-
-procedure TSDLBaseWindow.SetCaption( const aCaptionText : string; const aIconName : string );
-begin
- if FCaptionText <> aCaptionText then
- begin
- FCaptionText := PChar( aCaptionText );
- FIconName := PChar( aIconName );
- SDL_WM_SetCaption( FCaptionText, FIconName );
- end;
-end;
-
-procedure TSDLBaseWindow.SetIcon(aIcon: PSDL_Surface; aMask: UInt8);
-begin
- SDL_WM_SetIcon( aIcon, aMask );
-end;
-
-function TSDLBaseWindow.Show : Boolean;
-var
- eBaseWindowEvent : TSDL_Event;
-begin
- DoShow;
-
- FTimer.Init;
-
- FRendering := true;
- // repeat until we are told not to render
- while FRendering do
- begin
- // wait for an event
- while SDL_PollEvent( @eBaseWindowEvent ) > 0 do
- begin
-
- // check for a quit event
- case eBaseWindowEvent.type_ of
- SDL_ACTIVEEVENT :
- begin
- DoActive( eBaseWindowEvent.active.gain, eBaseWindowEvent.active.state );
- end;
-
- SDL_QUITEV :
- begin
- DoQuit;
- DoClose;
- end;
-
- SDL_USEREVENT :
- begin
- DoUser( eBaseWindowEvent.user.type_, eBaseWindowEvent.user.code, eBaseWindowEvent.user.data1, eBaseWindowEvent.user.data2 );
- end;
-
- SDL_VIDEOEXPOSE :
- begin
- DoExpose;
- end;
-
- SDL_VIDEORESIZE :
- begin
- DoResize( eBaseWindowEvent.resize.w, eBaseWindowEvent.resize.h, FDisplaySurface.format.BitsPerPixel, FVideoflags );
- end;
-
-
- end;
- InputManager.UpdateInputs( eBaseWindowEvent );
- end;
- // Prepare the Next Frame
- Update( FTimer.GetElapsedSeconds );
- // Display the Next Frame
- Render;
- // Flip the surfaces
- Flip;
- end;
-
- Result := FRendering;
-end;
-
-{ TSDL2DWindow }
-
-constructor TSDL2DWindow.Create(aWidth, aHeight, aBitDepth: integer; aVideoFlags: Uint32);
-begin
- // make sure double buffer is always included in the video flags
- inherited Create(aWidth,aHeight, aBitDepth, aVideoFlags or SDL_DOUBLEBUF);
-end;
-
-procedure TSDL2DWindow.DeleteObjects;
-begin
- inherited;
-
-end;
-
-function TSDL2DWindow.Flip: integer;
-begin
- // let's show the back buffer
- result := SDL_Flip( FDisplaySurface );
-end;
-
-procedure TSDL2DWindow.InitialiseObjects;
-begin
- inherited;
-
-end;
-
-procedure TSDL2DWindow.Update( aElapsedTime : single );
-begin
- inherited;
-
-end;
-
-procedure TSDL2DWindow.Render;
-begin
- inherited;
-
-end;
-
-procedure TSDL2DWindow.RestoreObjects;
-begin
- inherited;
-
-end;
-
-{ TSDL3DWindow }
-
-constructor TSDL3DWindow.Create(aWidth,
- aHeight, aBitDepth: integer; aVideoFlags: Uint32);
-begin
- // make sure opengl is always included in the video flags
- inherited Create(aWidth,aHeight, aBitDepth, aVideoFlags or SDL_OPENGL or SDL_DOUBLEBUF);
-end;
-
-procedure TSDL3DWindow.DeleteObjects;
-begin
- inherited;
-
-end;
-
-function TSDL3DWindow.Flip : integer;
-begin
- SDL_GL_SwapBuffers;
- result := 0;
-end;
-
-procedure TSDL3DWindow.InitialiseObjects;
-begin
- inherited;
-
-end;
-
-procedure TSDL3DWindow.Update( aElapsedTime : single );
-begin
- inherited;
-
-end;
-
-procedure TSDL3DWindow.Render;
-begin
- inherited;
-
-end;
-
-procedure TSDL3DWindow.RestoreObjects;
-begin
- inherited;
-
-end;
-
-end.
+unit sdlwindow; +{ + $Id: sdlwindow.pas,v 1.9 2006/10/22 18:55:25 savage Exp $ + +} +{******************************************************************************} +{ } +{ JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer } +{ SDL Window Wrapper } +{ } +{ } +{ The initial developer of this Pascal code was : } +{ Dominique Louis <Dominique@SavageSoftware.com.au> } +{ } +{ Portions created by Dominique Louis are } +{ Copyright (C) 2004 - 2100 Dominique Louis. } +{ } +{ } +{ Contributor(s) } +{ -------------- } +{ Dominique Louis <Dominique@SavageSoftware.com.au> } +{ } +{ Obtained through: } +{ Joint Endeavour of Delphi Innovators ( Project JEDI ) } +{ } +{ You may retrieve the latest version of this file at the Project } +{ JEDI home page, located at http://delphi-jedi.org } +{ } +{ The contents of this file are used with permission, subject to } +{ the Mozilla Public License Version 1.1 (the "License"); you may } +{ not use this file except in compliance with the License. You may } +{ obtain a copy of the License at } +{ http://www.mozilla.org/MPL/MPL-1.1.html } +{ } +{ Software distributed under the License is distributed on an } +{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } +{ implied. See the License for the specific language governing } +{ rights and limitations under the License. } +{ } +{ Description } +{ ----------- } +{ SDL Window Wrapper } +{ } +{ } +{ Requires } +{ -------- } +{ SDL.dll on Windows platforms } +{ libSDL-1.1.so.0 on Linux platform } +{ } +{ Programming Notes } +{ ----------------- } +{ } +{ } +{ } +{ } +{ Revision History } +{ ---------------- } +{ January 31 2003 - DL : Initial creation } +{ } +{ + $Log: sdlwindow.pas,v $ + Revision 1.9 2006/10/22 18:55:25 savage + Slight Change to handle OpenGL context + + Revision 1.8 2005/08/03 18:57:32 savage + Various updates and additions. Mainly to handle OpenGL 3D Window support and better cursor support for the mouse class + + Revision 1.7 2004/09/30 22:35:47 savage + Changes, enhancements and additions as required to get SoAoS working. + + Revision 1.6 2004/09/12 21:52:58 savage + Slight changes to fix some issues with the sdl classes. + + Revision 1.5 2004/05/10 21:11:49 savage + changes required to help get SoAoS off the ground. + + Revision 1.4 2004/05/01 14:59:27 savage + Updated code + + Revision 1.3 2004/04/23 10:45:28 savage + Changes made by Dean Ellis to work more modularly. + + Revision 1.2 2004/03/31 10:06:41 savage + Changed so that it now compiles, but is untested. + + Revision 1.1 2004/02/05 00:08:20 savage + Module 1.0 release + +} +{******************************************************************************} + +interface + +{$i jedi-sdl.inc} + +uses + Classes, + sdl, + sdlinput, + sdlticks; + +type + TSDLNotifyEvent = procedure {$IFNDEF NOT_OO}of object{$ENDIF}; + TSDLUpdateEvent = procedure( aElapsedTime : single ) {$IFNDEF NOT_OO}of object{$ENDIF}; + TSDLResizeEvent = procedure( aWidth : integer; aHeight : integer; aBitDepth : integer; aVideoFlags : Uint32 ) {$IFNDEF NOT_OO}of object{$ENDIF}; + TSDLUserEvent = procedure( aType : UInt8; aCode : integer; aData1 : Pointer; aData2 : Pointer ) {$IFNDEF NOT_OO}of object{$ENDIF}; + TSDLActiveEvent = procedure( aGain: UInt8; aState: UInt8 ) {$IFNDEF NOT_OO}of object{$ENDIF}; + + TSDLBaseWindow = class( TObject ) + private + FDisplaySurface : PSDL_Surface; + FVideoFlags : Uint32; + FOnDestroy: TSDLNotifyEvent; + FOnCreate: TSDLNotifyEvent; + FOnShow: TSDLNotifyEvent; + FOnResize: TSDLResizeEvent; + FOnUpdate: TSDLUpdateEvent; + FOnRender: TSDLNotifyEvent; + FOnClose: TSDLNotifyEvent; + FLoaded: Boolean; + FRendering: Boolean; + FHeight: integer; + FBitDepth: integer; + FWidth: integer; + FInputManager: TSDLInputManager; + FCaptionText : PChar; + FIconName : PChar; + FOnActive: TSDLActiveEvent; + FOnQuit: TSDLNotifyEvent; + FOnExpose: TSDLNotifyEvent; + FOnUser: TSDLUserEvent; + FTimer : TSDLTicks; + protected + procedure DoActive( aGain: UInt8; aState: UInt8 ); + procedure DoCreate; + procedure DoClose; + procedure DoDestroy; + procedure DoUpdate( aElapsedTime : single ); + procedure DoQuit; + procedure DoRender; + procedure DoResize( aWidth : integer; aHeight : integer; aBitDepth : integer; aVideoFlags : Uint32 ); + procedure DoShow; + procedure DoUser( aType : UInt8; aCode : integer; aData1 : Pointer; aData2 : Pointer ); + procedure DoExpose; + procedure Render; virtual; + procedure Update( aElapsedTime : single ); virtual; + procedure InitialiseObjects; virtual; + procedure RestoreObjects; virtual; + procedure DeleteObjects; virtual; + function Flip : integer; virtual; + property OnActive : TSDLActiveEvent read FOnActive write FOnActive; + property OnClose: TSDLNotifyEvent read FOnClose write FOnClose; + property OnDestroy : TSDLNotifyEvent read FOnDestroy write FOnDestroy; + property OnCreate : TSDLNotifyEvent read FOnCreate write FOnCreate; + property OnUpdate: TSDLUpdateEvent read FOnUpdate write FOnUpdate; + property OnQuit : TSDLNotifyEvent read FOnQuit write FOnQuit; + property OnResize : TSDLResizeEvent read FOnResize write FOnResize; + property OnRender: TSDLNotifyEvent read FOnRender write FOnRender; + property OnShow : TSDLNotifyEvent read FOnShow write FOnShow; + property OnUser : TSDLUserEvent read FOnUser write FOnUser; + property OnExpose : TSDLNotifyEvent read FOnExpose write FOnExpose; + property DisplaySurface: PSDL_Surface read FDisplaySurface; + public + property InputManager : TSDLInputManager read FInputManager; + property Loaded : Boolean read FLoaded; + property Width : integer read FWidth; + property Height : integer read FHeight; + property BitDepth : integer read FBitDepth; + property Rendering : Boolean read FRendering write FRendering; + procedure SetCaption( const aCaptionText : string; const aIconName : string ); + procedure GetCaption( var aCaptionText : string; var aIconName : string ); + procedure SetIcon( aIcon : PSDL_Surface; aMask: UInt8 ); + procedure ActivateVideoMode; + constructor Create( aWidth : integer; aHeight : integer; aBitDepth : integer; aVideoFlags : Uint32 ); virtual; + destructor Destroy; override; + procedure InitialiseEnvironment; + function Show : Boolean; virtual; + end; + + TSDLCustomWindow = class( TSDLBaseWindow ) + public + property OnCreate; + property OnDestroy; + property OnClose; + property OnShow; + property OnResize; + property OnRender; + property OnUpdate; + property DisplaySurface; + end; + + TSDL2DWindow = class( TSDLCustomWindow ) + public + constructor Create( aWidth : integer; aHeight : integer; aBitDepth : integer; aVideoFlags : Uint32 = SDL_DOUBLEBUF or SDL_SWSURFACE); override; + procedure Render; override; + procedure Update( aElapsedTime : single ); override; + procedure InitialiseObjects; override; + procedure RestoreObjects; override; + procedure DeleteObjects; override; + function Flip : integer; override; + end; + + TSDL3DWindow = class( TSDLCustomWindow ) + public + constructor Create( aWidth : integer; aHeight : integer; aBitDepth : integer; aVideoFlags : Uint32 = SDL_OPENGL or SDL_DOUBLEBUF); override; + function Flip : integer; override; + procedure Render; override; + procedure Update( aElapsedTime : single ); override; + procedure InitialiseObjects; override; + procedure RestoreObjects; override; + procedure DeleteObjects; override; + end; + + + +implementation + +uses + logger, + SysUtils; + +{ TSDLBaseWindow } +procedure TSDLBaseWindow.ActivateVideoMode; +begin + FDisplaySurface := SDL_SetVideoMode( FWidth, FHeight, FBitDepth, FVideoFlags); + if (FDisplaySurface = nil) then + begin + Log.LogError( Format('Could not set video mode: %s', [SDL_GetError]), 'Main'); + exit; + end; + + SetCaption( 'Made with JEDI-SDL', 'JEDI-SDL Icon' ); +end; + +constructor TSDLBaseWindow.Create( aWidth : integer; aHeight : integer; aBitDepth : integer; aVideoFlags : Uint32 ); +begin + inherited Create; + SDL_Init(SDL_INIT_EVERYTHING); + FInputManager := TSDLInputManager.Create( [ itJoystick, itKeyBoard, itMouse ]); + FTimer := TSDLTicks.Create; + + FWidth := aWidth; + FHeight := aHeight; + FBitDepth := aBitDepth; + FVideoFlags := aVideoFlags; + + DoCreate; +end; + +procedure TSDLBaseWindow.DeleteObjects; +begin + FLoaded := False; +end; + +destructor TSDLBaseWindow.Destroy; +begin + DoDestroy; + if FLoaded then + DeleteObjects; + if FInputManager <> nil then + FreeAndNil( FInputManager ); + if FTimer <> nil then + FreeAndNil( FTimer ); + if FDisplaySurface <> nil then + SDL_FreeSurface( FDisplaySurface ); + inherited Destroy; + SDL_Quit; +end; + +procedure TSDLBaseWindow.DoActive(aGain, aState: UInt8); +begin + if Assigned( FOnActive ) then + begin + FOnActive( aGain, aState ); + end; +end; + +procedure TSDLBaseWindow.DoClose; +begin + if Assigned( FOnClose ) then + begin + FOnClose; + end; +end; + +procedure TSDLBaseWindow.DoCreate; +begin + if Assigned( FOnCreate ) then + begin + FOnCreate; + end; +end; + +procedure TSDLBaseWindow.DoDestroy; +begin + if Assigned( FOnDestroy ) then + begin + FOnDestroy; + end; +end; + +procedure TSDLBaseWindow.DoExpose; +begin + if Assigned( FOnExpose ) then + begin + FOnExpose; + end; +end; + +procedure TSDLBaseWindow.DoUpdate( aElapsedTime : single ); +begin + if Assigned( FOnUpdate ) then + begin + FOnUpdate( aElapsedTime ); + end; +end; + +procedure TSDLBaseWindow.DoQuit; +begin + FRendering := false; + if Assigned( FOnQuit ) then + begin + FOnQuit; + end; +end; + +procedure TSDLBaseWindow.DoRender; +begin + if Assigned( FOnRender ) then + begin + FOnRender; + end; +end; + +procedure TSDLBaseWindow.DoResize( aWidth : integer; aHeight : integer; aBitDepth : integer; aVideoFlags : Uint32 ); +begin + // resize to the new size + SDL_FreeSurface(FDisplaySurface); + FWidth := aWidth; + FHeight := aHeight; + FBitDepth := aBitDepth; + FVideoFlags := aVideoFlags; + FDisplaySurface := SDL_SetVideoMode(aWidth, aHeight, aBitDepth, aVideoFlags); + if Assigned( FOnResize ) then + begin + FOnResize( aWidth, aHeight, aBitDepth, aVideoFlags ); + end; +end; + +procedure TSDLBaseWindow.DoShow; +begin + if Assigned( FOnShow ) then + begin + FOnShow; + end; +end; + +procedure TSDLBaseWindow.DoUser(aType: UInt8; aCode: integer; aData1, aData2: Pointer); +begin + if Assigned( FOnUser ) then + begin + FOnUser( aType, aCode, aData1, aData2 ); + end; +end; + +function TSDLBaseWindow.Flip : integer; +begin + result := 0; +end; + +procedure TSDLBaseWindow.GetCaption( var aCaptionText : string; var aIconName : string ); +begin + aCaptionText := string( FCaptionText ); + aIconName := string( FIconName ); +end; + +procedure TSDLBaseWindow.InitialiseEnvironment; +begin + InitialiseObjects; + RestoreObjects; +end; + +procedure TSDLBaseWindow.InitialiseObjects; +begin + FLoaded := True; +end; + +procedure TSDLBaseWindow.Update( aElapsedTime : single ); +begin + DoUpdate( aElapsedTime ); +end; + +procedure TSDLBaseWindow.Render; +begin + DoRender; +end; + +procedure TSDLBaseWindow.RestoreObjects; +begin + FLoaded := false; +end; + +procedure TSDLBaseWindow.SetCaption( const aCaptionText : string; const aIconName : string ); +begin + if FCaptionText <> aCaptionText then + begin + FCaptionText := PChar( aCaptionText ); + FIconName := PChar( aIconName ); + SDL_WM_SetCaption( FCaptionText, FIconName ); + end; +end; + +procedure TSDLBaseWindow.SetIcon(aIcon: PSDL_Surface; aMask: UInt8); +begin + SDL_WM_SetIcon( aIcon, aMask ); +end; + +function TSDLBaseWindow.Show : Boolean; +var + eBaseWindowEvent : TSDL_Event; +begin + DoShow; + + FTimer.Init; + + FRendering := true; + // repeat until we are told not to render + while FRendering do + begin + // wait for an event + while SDL_PollEvent( @eBaseWindowEvent ) > 0 do + begin + + // check for a quit event + case eBaseWindowEvent.type_ of + SDL_ACTIVEEVENT : + begin + DoActive( eBaseWindowEvent.active.gain, eBaseWindowEvent.active.state ); + end; + + SDL_QUITEV : + begin + DoQuit; + DoClose; + end; + + SDL_USEREVENT : + begin + DoUser( eBaseWindowEvent.user.type_, eBaseWindowEvent.user.code, eBaseWindowEvent.user.data1, eBaseWindowEvent.user.data2 ); + end; + + SDL_VIDEOEXPOSE : + begin + DoExpose; + end; + + SDL_VIDEORESIZE : + begin + DoResize( eBaseWindowEvent.resize.w, eBaseWindowEvent.resize.h, FDisplaySurface.format.BitsPerPixel, FVideoflags ); + end; + + + end; + InputManager.UpdateInputs( eBaseWindowEvent ); + end; + // Prepare the Next Frame + Update( FTimer.GetElapsedSeconds ); + // Display the Next Frame + Render; + // Flip the surfaces + Flip; + end; + + Result := FRendering; +end; + +{ TSDL2DWindow } + +constructor TSDL2DWindow.Create(aWidth, aHeight, aBitDepth: integer; aVideoFlags: Uint32); +begin + // make sure double buffer is always included in the video flags + inherited Create(aWidth,aHeight, aBitDepth, aVideoFlags or SDL_DOUBLEBUF); +end; + +procedure TSDL2DWindow.DeleteObjects; +begin + inherited; + +end; + +function TSDL2DWindow.Flip: integer; +begin + // let's show the back buffer + result := SDL_Flip( FDisplaySurface ); +end; + +procedure TSDL2DWindow.InitialiseObjects; +begin + inherited; + +end; + +procedure TSDL2DWindow.Update( aElapsedTime : single ); +begin + inherited; + +end; + +procedure TSDL2DWindow.Render; +begin + inherited; + +end; + +procedure TSDL2DWindow.RestoreObjects; +begin + inherited; + +end; + +{ TSDL3DWindow } + +constructor TSDL3DWindow.Create(aWidth, + aHeight, aBitDepth: integer; aVideoFlags: Uint32); +begin + // make sure opengl is always included in the video flags + inherited Create(aWidth,aHeight, aBitDepth, aVideoFlags or SDL_OPENGL or SDL_DOUBLEBUF); +end; + +procedure TSDL3DWindow.DeleteObjects; +begin + inherited; + +end; + +function TSDL3DWindow.Flip : integer; +begin + SDL_GL_SwapBuffers; + result := 0; +end; + +procedure TSDL3DWindow.InitialiseObjects; +begin + inherited; + +end; + +procedure TSDL3DWindow.Update( aElapsedTime : single ); +begin + inherited; + +end; + +procedure TSDL3DWindow.Render; +begin + inherited; + +end; + +procedure TSDL3DWindow.RestoreObjects; +begin + inherited; + +end; + +end. diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/userpreferences.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/userpreferences.pas index 97e26520..aed326d1 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/userpreferences.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/userpreferences.pas @@ -1,159 +1,159 @@ -unit userpreferences;
-{
- $Id: userpreferences.pas,v 1.1 2004/09/30 22:35:47 savage Exp $
-
-}
-{******************************************************************************}
-{ }
-{ JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer }
-{ Base Class for User Preferences }
-{ }
-{ The initial developer of this Pascal code was : }
-{ Dominqiue Louis <Dominique@SavageSoftware.com.au> }
-{ }
-{ Portions created by Dominqiue Louis are }
-{ Copyright (C) 2000 - 2001 Dominqiue Louis. }
-{ }
-{ }
-{ Contributor(s) }
-{ -------------- }
-{ }
-{ }
-{ Obtained through: }
-{ Joint Endeavour of Delphi Innovators ( Project JEDI ) }
-{ }
-{ You may retrieve the latest version of this file at the Project }
-{ JEDI home page, located at http://delphi-jedi.org }
-{ }
-{ The contents of this file are used with permission, subject to }
-{ the Mozilla Public License Version 1.1 (the "License"); you may }
-{ not use this file except in compliance with the License. You may }
-{ obtain a copy of the License at }
-{ http://www.mozilla.org/MPL/MPL-1.1.html }
-{ }
-{ Software distributed under the License is distributed on an }
-{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or }
-{ implied. See the License for the specific language governing }
-{ rights and limitations under the License. }
-{ }
-{ Description }
-{ ----------- }
-{ }
-{ }
-{ }
-{ }
-{ }
-{ }
-{ }
-{ Requires }
-{ -------- }
-{ The SDL Runtime libraris on Win32 : SDL.dll on Linux : libSDL.so }
-{ They are available from... }
-{ http://www.libsdl.org . }
-{ }
-{ Programming Notes }
-{ ----------------- }
-{ }
-{ }
-{ }
-{ }
-{ Revision History }
-{ ---------------- }
-{ September 23 2004 - DL : Initial Creation }
-{
- $Log: userpreferences.pas,v $
- Revision 1.1 2004/09/30 22:35:47 savage
- Changes, enhancements and additions as required to get SoAoS working.
-
-
-}
-{******************************************************************************}
-
-interface
-
-uses
- Classes;
-
-type
- TUserPreferences = class
- private
- FAutoSave: Boolean;
- procedure CheckAutoSave;
- protected
- function GetDefaultBoolean( const Index : Integer ) : Boolean; virtual; abstract;
- function GetBoolean( const Index : Integer ) : Boolean; virtual; abstract;
- procedure SetBoolean( const Index : Integer; const Value : Boolean ); virtual;
- function GetDefaultDateTime( const Index : Integer ) : TDateTime; virtual; abstract;
- function GetDateTime( const Index : Integer ) : TDateTime; virtual; abstract;
- procedure SetDateTime( const Index : Integer; const Value : TDateTime ); virtual;
- function GetDefaultInteger( const Index : Integer ) : Integer; virtual; abstract;
- function GetInteger( const Index : Integer ) : Integer; virtual; abstract;
- procedure SetInteger( const Index : Integer; const Value : Integer ); virtual;
- function GetDefaultFloat( const Index : Integer ) : single; virtual; abstract;
- function GetFloat( const Index : Integer ) : single; virtual; abstract;
- procedure SetFloat( const Index : Integer; const Value : single ); virtual;
- function GetDefaultString( const Index : Integer ) : string; virtual; abstract;
- function GetString( const Index : Integer ) : string; virtual; abstract;
- procedure SetString( const Index : Integer; const Value : string ); virtual;
- function GetDefaultBinaryStream( const Index : Integer ) : TStream; virtual; abstract;
- function GetBinaryStream( const Index : Integer ) : TStream; virtual; abstract;
- procedure SetBinaryStream( const Index : Integer; const Value : TStream ); virtual;
- public
- procedure Update; virtual; abstract;
- constructor Create; virtual;
- destructor Destroy; override;
- property AutoSave : Boolean read FAutoSave write FAutoSave;
- end;
-
-implementation
-
-{ TUserPreferences }
-procedure TUserPreferences.CheckAutoSave;
-begin
- if FAutoSave then
- Update;
-end;
-
-constructor TUserPreferences.Create;
-begin
- inherited;
- FAutoSave := false;
-end;
-
-destructor TUserPreferences.Destroy;
-begin
-
- inherited;
-end;
-
-procedure TUserPreferences.SetBinaryStream( const Index : Integer; const Value : TStream );
-begin
- CheckAutoSave;
-end;
-
-procedure TUserPreferences.SetBoolean(const Index: Integer; const Value: Boolean);
-begin
- CheckAutoSave;
-end;
-
-procedure TUserPreferences.SetDateTime(const Index: Integer; const Value: TDateTime);
-begin
- CheckAutoSave;
-end;
-
-procedure TUserPreferences.SetFloat(const Index: Integer; const Value: single);
-begin
- CheckAutoSave;
-end;
-
-procedure TUserPreferences.SetInteger(const Index, Value: Integer);
-begin
- CheckAutoSave;
-end;
-
-procedure TUserPreferences.SetString(const Index: Integer; const Value: string);
-begin
- CheckAutoSave;
-end;
-
-end.
+unit userpreferences; +{ + $Id: userpreferences.pas,v 1.1 2004/09/30 22:35:47 savage Exp $ + +} +{******************************************************************************} +{ } +{ JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer } +{ Base Class for User Preferences } +{ } +{ The initial developer of this Pascal code was : } +{ Dominqiue Louis <Dominique@SavageSoftware.com.au> } +{ } +{ Portions created by Dominqiue Louis are } +{ Copyright (C) 2000 - 2001 Dominqiue Louis. } +{ } +{ } +{ Contributor(s) } +{ -------------- } +{ } +{ } +{ Obtained through: } +{ Joint Endeavour of Delphi Innovators ( Project JEDI ) } +{ } +{ You may retrieve the latest version of this file at the Project } +{ JEDI home page, located at http://delphi-jedi.org } +{ } +{ The contents of this file are used with permission, subject to } +{ the Mozilla Public License Version 1.1 (the "License"); you may } +{ not use this file except in compliance with the License. You may } +{ obtain a copy of the License at } +{ http://www.mozilla.org/MPL/MPL-1.1.html } +{ } +{ Software distributed under the License is distributed on an } +{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } +{ implied. See the License for the specific language governing } +{ rights and limitations under the License. } +{ } +{ Description } +{ ----------- } +{ } +{ } +{ } +{ } +{ } +{ } +{ } +{ Requires } +{ -------- } +{ The SDL Runtime libraris on Win32 : SDL.dll on Linux : libSDL.so } +{ They are available from... } +{ http://www.libsdl.org . } +{ } +{ Programming Notes } +{ ----------------- } +{ } +{ } +{ } +{ } +{ Revision History } +{ ---------------- } +{ September 23 2004 - DL : Initial Creation } +{ + $Log: userpreferences.pas,v $ + Revision 1.1 2004/09/30 22:35:47 savage + Changes, enhancements and additions as required to get SoAoS working. + + +} +{******************************************************************************} + +interface + +uses + Classes; + +type + TUserPreferences = class + private + FAutoSave: Boolean; + procedure CheckAutoSave; + protected + function GetDefaultBoolean( const Index : Integer ) : Boolean; virtual; abstract; + function GetBoolean( const Index : Integer ) : Boolean; virtual; abstract; + procedure SetBoolean( const Index : Integer; const Value : Boolean ); virtual; + function GetDefaultDateTime( const Index : Integer ) : TDateTime; virtual; abstract; + function GetDateTime( const Index : Integer ) : TDateTime; virtual; abstract; + procedure SetDateTime( const Index : Integer; const Value : TDateTime ); virtual; + function GetDefaultInteger( const Index : Integer ) : Integer; virtual; abstract; + function GetInteger( const Index : Integer ) : Integer; virtual; abstract; + procedure SetInteger( const Index : Integer; const Value : Integer ); virtual; + function GetDefaultFloat( const Index : Integer ) : single; virtual; abstract; + function GetFloat( const Index : Integer ) : single; virtual; abstract; + procedure SetFloat( const Index : Integer; const Value : single ); virtual; + function GetDefaultString( const Index : Integer ) : string; virtual; abstract; + function GetString( const Index : Integer ) : string; virtual; abstract; + procedure SetString( const Index : Integer; const Value : string ); virtual; + function GetDefaultBinaryStream( const Index : Integer ) : TStream; virtual; abstract; + function GetBinaryStream( const Index : Integer ) : TStream; virtual; abstract; + procedure SetBinaryStream( const Index : Integer; const Value : TStream ); virtual; + public + procedure Update; virtual; abstract; + constructor Create; virtual; + destructor Destroy; override; + property AutoSave : Boolean read FAutoSave write FAutoSave; + end; + +implementation + +{ TUserPreferences } +procedure TUserPreferences.CheckAutoSave; +begin + if FAutoSave then + Update; +end; + +constructor TUserPreferences.Create; +begin + inherited; + FAutoSave := false; +end; + +destructor TUserPreferences.Destroy; +begin + + inherited; +end; + +procedure TUserPreferences.SetBinaryStream( const Index : Integer; const Value : TStream ); +begin + CheckAutoSave; +end; + +procedure TUserPreferences.SetBoolean(const Index: Integer; const Value: Boolean); +begin + CheckAutoSave; +end; + +procedure TUserPreferences.SetDateTime(const Index: Integer; const Value: TDateTime); +begin + CheckAutoSave; +end; + +procedure TUserPreferences.SetFloat(const Index: Integer; const Value: single); +begin + CheckAutoSave; +end; + +procedure TUserPreferences.SetInteger(const Index, Value: Integer); +begin + CheckAutoSave; +end; + +procedure TUserPreferences.SetString(const Index: Integer; const Value: string); +begin + CheckAutoSave; +end; + +end. |