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-rw-r--r--Game/Code/lib/JEDI-SDL/SDL/Pas/Readme.txt52
-rw-r--r--Game/Code/lib/JEDI-SDL/SDL/Pas/jedi-sdl.inc876
-rw-r--r--Game/Code/lib/JEDI-SDL/SDL/Pas/libxmlparser.pas5376
-rw-r--r--Game/Code/lib/JEDI-SDL/SDL/Pas/logger.pas376
-rw-r--r--Game/Code/lib/JEDI-SDL/SDL/Pas/moduleloader.pas638
-rw-r--r--Game/Code/lib/JEDI-SDL/SDL/Pas/registryuserpreferences.pas458
-rw-r--r--Game/Code/lib/JEDI-SDL/SDL/Pas/sdl_cpuinfo.pas308
-rw-r--r--Game/Code/lib/JEDI-SDL/SDL/Pas/sdlgameinterface.pas404
-rw-r--r--Game/Code/lib/JEDI-SDL/SDL/Pas/sdli386utils.pas10472
-rw-r--r--Game/Code/lib/JEDI-SDL/SDL/Pas/sdlinput.pas1846
-rw-r--r--Game/Code/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas432
-rw-r--r--Game/Code/lib/JEDI-SDL/SDL/Pas/sdlticks.pas392
-rw-r--r--Game/Code/lib/JEDI-SDL/SDL/Pas/sdlutils.pas8726
-rw-r--r--Game/Code/lib/JEDI-SDL/SDL/Pas/sdlwindow.pas1132
-rw-r--r--Game/Code/lib/JEDI-SDL/SDL/Pas/userpreferences.pas318
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;&#252;"
- 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;&#252;"
+ 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.
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