diff options
Diffstat (limited to 'src/lib/JEDI-SDL/SDL/Pas')
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/Readme.txt | 27 | ||||
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/jedi-sdl.inc | 442 | ||||
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/libxmlparser.pas | 2688 | ||||
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/logger.pas | 189 | ||||
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/moduleloader.pas | 320 | ||||
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/registryuserpreferences.pas | 229 | ||||
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/sdl.pas | 4332 | ||||
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/sdl_cpuinfo.pas | 155 | ||||
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/sdlgameinterface.pas | 202 | ||||
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/sdli386utils.pas | 5236 | ||||
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/sdlinput.pas | 923 | ||||
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas | 216 | ||||
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/sdlticks.pas | 197 | ||||
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/sdlutils.pas | 4363 | ||||
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/sdlwindow.pas | 566 | ||||
| -rw-r--r-- | src/lib/JEDI-SDL/SDL/Pas/userpreferences.pas | 159 |
16 files changed, 20244 insertions, 0 deletions
diff --git a/src/lib/JEDI-SDL/SDL/Pas/Readme.txt b/src/lib/JEDI-SDL/SDL/Pas/Readme.txt new file mode 100644 index 00000000..f176d0c9 --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/Readme.txt @@ -0,0 +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 +www.delphi-unicode.net
\ No newline at end of file diff --git a/src/lib/JEDI-SDL/SDL/Pas/jedi-sdl.inc b/src/lib/JEDI-SDL/SDL/Pas/jedi-sdl.inc new file mode 100644 index 00000000..31817d24 --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/jedi-sdl.inc @@ -0,0 +1,442 @@ +{ + $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} + {$DEFINE USE_STDCALL} + {$MINENUMSIZE 4} + //{$ALIGN ON} +{$ENDIF Delphi} + +{$IFDEF FPC} + {$MODE Delphi} { use Delphi compatibility mode } + {$H+} + {$PACKRECORDS C} // Added for record + {$PACKENUM 4} // Use 4-byte enums + {$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} + {$IFDEF MSWINDOWS} + {$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 MSWINDOWS} + {$DEFINE OS_BigMem} +{$ELSE MSWINDOWS} + {$IFDEF ver70} + {$DEFINE assembler} + {$ENDIF} { use 16-bit assembler! } +{$ENDIF MSWINDOWS} + +{ ************************** 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} + {$DEFINE IA32} +{$ELSE FPC_LITTLE_ENDIAN} + {$UNDEF IA32} +{$ENDIF FPC_LITTLE_ENDIAN} +{$ENDIF} diff --git a/src/lib/JEDI-SDL/SDL/Pas/libxmlparser.pas b/src/lib/JEDI-SDL/SDL/Pas/libxmlparser.pas new file mode 100644 index 00000000..63e7b7fb --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/libxmlparser.pas @@ -0,0 +1,2688 @@ +(** +=============================================================================================== +Name : LibXmlParser +=============================================================================================== +Project : All Projects +=============================================================================================== +Subject : Progressive XML Parser for all types of XML Files +=============================================================================================== +Author : Stefan Heymann + Eschenweg 3 + 72076 Tübingen + GERMANY + +E-Mail: stefan@destructor.de +URL: www.destructor.de +=============================================================================================== +Source, Legals ("Licence") +-------------------------- +The official site to get this parser is http://www.destructor.de/ + +Usage and Distribution of this Source Code is ruled by the +"Destructor.de Source code Licence" (DSL) which comes with this file or +can be downloaded at http://www.destructor.de/ + +IN SHORT: Usage and distribution of this source code is free. + You use it completely on your own risk. + +Postcardware +------------ +If you like this code, please send a postcard of your city to my above address. +=============================================================================================== +!!! All parts of this code which are not finished or not conforming exactly to + the XmlSpec are marked with three exclamation marks + +-!- Parts where the parser may be able to detect errors in the document's syntax are + marked with the dash-exlamation mark-dash sequence. +=============================================================================================== +Terminology: +------------ +- Start: Start of a buffer part +- Final: End (last character) of a buffer part +- DTD: Document Type Definition +- DTDc: Document Type Declaration +- XMLSpec: The current W3C XML Recommendation (version 1.0 as of 1998-02-10), Chapter No. +- Cur*: Fields concerning the "Current" part passed back by the "Scan" method +=============================================================================================== +Scanning the XML document +------------------------- +- Create TXmlParser Instance MyXml := TXmlParser.Create; +- Load XML Document MyXml.LoadFromFile (Filename); +- Start Scanning MyXml.StartScan; +- Scan Loop WHILE MyXml.Scan DO +- Test for Part Type CASE MyXml.CurPartType OF +- Handle Parts ... : ;;; +- Handle Parts ... : ;;; +- Handle Parts ... : ;;; + END; +- Destroy MyXml.Free; +=============================================================================================== +Loading the XML document +------------------------ +You can load the XML document from a file with the "LoadFromFile" method. +It is beyond the scope of this parser to perform HTTP or FTP accesses. If you want your +application to handle such requests (URLs), you can load the XML via HTTP or FTP or whatever +protocol and hand over the data buffer using the "LoadFromBuffer" or "SetBuffer" method. +"LoadFromBuffer" loads the internal buffer of TXmlParser with the given null-terminated +string, thereby creating a copy of that buffer. +"SetBuffer" just takes the pointer to another buffer, which means that the given +buffer pointer must be valid while the document is accessed via TXmlParser. +=============================================================================================== +Encodings: +---------- +This XML parser kind of "understands" the following encodings: +- UTF-8 +- ISO-8859-1 +- Windows-1252 + +Any flavor of multi-byte characters (and this includes UTF-16) is not supported. Sorry. + +Every string which has to be passed to the application passes the virtual method +"TranslateEncoding" which translates the string from the current encoding (stored in +"CurEncoding") into the encoding the application wishes to receive. +The "TranslateEncoding" method that is built into TXmlParser assumes that the application +wants to receive Windows ANSI (Windows-1252, about the same as ISO-8859-1) and is able +to convert UTF-8 and ISO-8859-1 encodings. +For other source and target encodings, you will have to override "TranslateEncoding". +=============================================================================================== +Buffer Handling +--------------- +- The document must be loaded completely into a piece of RAM +- All character positions are referenced by PChar pointers +- The TXmlParser instance can either "own" the buffer itself (then, FBufferSize is > 0) + or reference the buffer of another instance or object (then, FBuffersize is 0 and + FBuffer is not NIL) +- The Property DocBuffer passes back a pointer to the first byte of the document. If there + is no document stored (FBuffer is NIL), the DocBuffer returns a pointer to a NULL character. +=============================================================================================== +Whitespace Handling +------------------- +The TXmlParser property "PackSpaces" determines how Whitespace is returned in Text Content: +While PackSpaces is true, all leading and trailing whitespace characters are trimmed of, all +Whitespace is converted to Space #x20 characters and contiguous Whitespace characters are +compressed to one. +If the "Scan" method reports a ptContent part, the application can get the original text +with all whitespace characters by extracting the characters from "CurStart" to "CurFinal". +If the application detects an xml:space attribute, it can set "PackSpaces" accordingly or +use CurStart/CurFinal. +Please note that TXmlParser does _not_ normalize Line Breaks to single LineFeed characters +as the XmlSpec requires (XmlSpec 2.11). +The xml:space attribute is not handled by TXmlParser. This is on behalf of the application. +=============================================================================================== +Non-XML-Conforming +------------------ +TXmlParser does not conform 100 % exactly to the XmlSpec: +- UTF-16 is not supported (XmlSpec 2.2) + (Workaround: Convert UTF-16 to UTF-8 and hand the buffer over to TXmlParser) +- As the parser only works with single byte strings, all Unicode characters > 255 + can currently not be handled correctly. +- Line breaks are not normalized to single Linefeed #x0A characters (XmlSpec 2.11) + (Workaround: The Application can access the text contents on its own [CurStart, CurFinal], + thereby applying every normalization it wishes to) +- The attribute value normalization does not work exactly as defined in the + Second Edition of the XML 1.0 specification. +- See also the code parts marked with three consecutive exclamation marks. These are + parts which are not finished in the current code release. + +This list may be incomplete, so it may grow if I get to know any other points. +As work on the parser proceeds, this list may also shrink. +=============================================================================================== +Things Todo +----------- +- Introduce a new event/callback which is called when there is an unresolvable + entity or character reference +- Support Unicode +- Use Streams instead of reading the whole XML into memory +=============================================================================================== +Change History, Version numbers +------------------------------- +The Date is given in ISO Year-Month-Day (YYYY-MM-DD) order. +Versions are counted from 1.0.0 beginning with the version from 2000-03-16. +Unreleased versions don't get a version number. + +Date Author Version Changes +----------------------------------------------------------------------------------------------- +2000-03-16 HeySt 1.0.0 Start +2000-03-28 HeySt 1.0.1 Initial Publishing of TXmlParser on the destructor.de Web Site +2000-03-30 HeySt 1.0.2 TXmlParser.AnalyzeCData: Call "TranslateEncoding" for CurContent +2000-03-31 HeySt 1.0.3 Deleted the StrPosE function (was not needed anyway) +2000-04-04 HeySt 1.0.4 TDtdElementRec modified: Start/Final for all Elements; + Should be backwards compatible. + AnalyzeDtdc: Set CurPartType to ptDtdc +2000-04-23 HeySt 1.0.5 New class TObjectList. Eliminated reference to the Delphi 5 + "Contnrs" unit so LibXmlParser is Delphi 4 compatible. +2000-07-03 HeySt 1.0.6 TNvpNode: Added Constructor +2000-07-11 HeySt 1.0.7 Removed "Windows" from USES clause + Added three-exclamation-mark comments for Utf8ToAnsi/AnsiToUtf8 + Added three-exclamation-mark comments for CHR function calls +2000-07-23 HeySt 1.0.8 TXmlParser.Clear: CurAttr.Clear; EntityStack.Clear; + (This was not a bug; just defensive programming) +2000-07-29 HeySt 1.0.9 TNvpList: Added methods: Node(Index), Value(Index), Name(Index); +2000-10-07 HeySt Introduced Conditional Defines + Uses Contnrs unit and its TObjectList class again for + Delphi 5 and newer versions +2001-01-30 HeySt Introduced Version Numbering + Made LoadFromFile and LoadFromBuffer BOOLEAN functions + Introduced FileMode parameter for LoadFromFile + BugFix: TAttrList.Analyze: Must add CWhitespace to ExtractName call + Comments worked over +2001-02-28 HeySt 1.0.10 Completely worked over and tested the UTF-8 functions + Fixed a bug in TXmlParser.Scan which caused it to start over when it + was called after the end of scanning, resulting in an endless loop + TEntityStack is now a TObjectList instead of TList +2001-07-03 HeySt 1.0.11 Updated Compiler Version IFDEFs for Kylix +2001-07-11 HeySt 1.0.12 New TCustomXmlScanner component (taken over from LibXmlComps.pas) +2001-07-14 HeySt 1.0.13 Bugfix TCustomXmlScanner.FOnTranslateEncoding +2001-10-22 HeySt Don't clear CurName anymore when the parser finds a CDATA section. +2001-12-03 HeySt 1.0.14 TObjectList.Clear: Make call to INHERITED method (fixes a memory leak) +2001-12-05 HeySt 1.0.15 TObjectList.Clear: removed call to INHERITED method + TObjectList.Destroy: Inserted SetCapacity call. + Reduces need for frequent re-allocation of pointer buffer + Dedicated to my father, Theodor Heymann +2002-06-26 HeySt 1.0.16 TXmlParser.Scan: Fixed a bug with PIs whose name is beginning + with 'xml'. Thanks to Uwe Kamm for submitting this bug. + The CurEncoding property is now always in uppercase letters (the XML + spec wants it to be treated case independently so when it's uppercase + comparisons are faster) +2002-03-04 HeySt 1.0.17 Included an IFDEF for Delphi 7 (VER150) and Kylix + There is a new symbol HAS_CONTNRS_UNIT which is used now to + distinguish between IDEs which come with the Contnrs unit and + those that don't. +*) + +UNIT libxmlparser; + +{$I jedi-sdl.inc} + +INTERFACE + +USES + SysUtils, Classes, + (*$IFDEF HAS_CONTNRS_UNIT *) // The Contnrs Unit was introduced in Delphi 5 + Contnrs, + (*$ENDIF*) + Math; + +CONST + CVersion = '1.0.17'; // This variable will be updated for every release + // (I hope, I won't forget to do it everytime ...) + +TYPE + TPartType = // --- Document Part Types + (ptNone, // Nothing + ptXmlProlog, // XML Prolog XmlSpec 2.8 / 4.3.1 + ptComment, // Comment XmlSpec 2.5 + ptPI, // Processing Instruction XmlSpec 2.6 + ptDtdc, // Document Type Declaration XmlSpec 2.8 + ptStartTag, // Start Tag XmlSpec 3.1 + ptEmptyTag, // Empty-Element Tag XmlSpec 3.1 + ptEndTag, // End Tag XmlSpec 3.1 + ptContent, // Text Content between Tags + ptCData); // CDATA Section XmlSpec 2.7 + + TDtdElemType = // --- DTD Elements + (deElement, // !ELEMENT declaration + deAttList, // !ATTLIST declaration + deEntity, // !ENTITY declaration + deNotation, // !NOTATION declaration + dePI, // PI in DTD + deComment, // Comment in DTD + deError); // Error found in the DTD + +TYPE + TAttrList = CLASS; + TEntityStack = CLASS; + TNvpList = CLASS; + TElemDef = CLASS; + TElemList = CLASS; + TEntityDef = CLASS; + TNotationDef = CLASS; + + TDtdElementRec = RECORD // --- This Record is returned by the DTD parser callback function + Start, Final : PChar; // Start/End of the Element's Declaration + CASE ElementType : TDtdElemType OF // Type of the Element + deElement, // <!ELEMENT> + deAttList : (ElemDef : TElemDef); // <!ATTLIST> + deEntity : (EntityDef : TEntityDef); // <!ENTITY> + deNotation : (NotationDef : TNotationDef); // <!NOTATION> + dePI : (Target : PChar; // <?PI ?> + Content : PChar; + AttrList : TAttrList); + deError : (Pos : PChar); // Error + // deComment : ((No additional fields here)); // <!-- Comment --> + END; + + TXmlParser = CLASS // --- Internal Properties and Methods + PROTECTED + FBuffer : PChar; // NIL if there is no buffer available + FBufferSize : INTEGER; // 0 if the buffer is not owned by the Document instance + FSource : STRING; // Name of Source of document. Filename for Documents loaded with LoadFromFile + + FXmlVersion : STRING; // XML version from Document header. Default is '1.0' + FEncoding : STRING; // Encoding from Document header. Default is 'UTF-8' + FStandalone : BOOLEAN; // Standalone declaration from Document header. Default is 'yes' + FRootName : STRING; // Name of the Root Element (= DTD name) + FDtdcFinal : PChar; // Pointer to the '>' character terminating the DTD declaration + + FNormalize : BOOLEAN; // If true: Pack Whitespace and don't return empty contents + EntityStack : TEntityStack; // Entity Stack for Parameter and General Entities + FCurEncoding : STRING; // Current Encoding during parsing (always uppercase) + + PROCEDURE AnalyzeProlog; // Analyze XML Prolog or Text Declaration + PROCEDURE AnalyzeComment (Start : PChar; VAR Final : PChar); // Analyze Comments + PROCEDURE AnalyzePI (Start : PChar; VAR Final : PChar); // Analyze Processing Instructions (PI) + PROCEDURE AnalyzeDtdc; // Analyze Document Type Declaration + PROCEDURE AnalyzeDtdElements (Start : PChar; VAR Final : PChar); // Analyze DTD declarations + PROCEDURE AnalyzeTag; // Analyze Start/End/Empty-Element Tags + PROCEDURE AnalyzeCData; // Analyze CDATA Sections + PROCEDURE AnalyzeText (VAR IsDone : BOOLEAN); // Analyze Text Content between Tags + PROCEDURE AnalyzeElementDecl (Start : PChar; VAR Final : PChar); + PROCEDURE AnalyzeAttListDecl (Start : PChar; VAR Final : PChar); + PROCEDURE AnalyzeEntityDecl (Start : PChar; VAR Final : PChar); + PROCEDURE AnalyzeNotationDecl (Start : PChar; VAR Final : PChar); + + PROCEDURE PushPE (VAR Start : PChar); + PROCEDURE ReplaceCharacterEntities (VAR Str : STRING); + PROCEDURE ReplaceParameterEntities (VAR Str : STRING); + PROCEDURE ReplaceGeneralEntities (VAR Str : STRING); + + FUNCTION GetDocBuffer : PChar; // Returns FBuffer or a pointer to a NUL char if Buffer is empty + + PUBLIC // --- Document Properties + PROPERTY XmlVersion : STRING READ FXmlVersion; // XML version from the Document Prolog + PROPERTY Encoding : STRING READ FEncoding; // Document Encoding from Prolog + PROPERTY Standalone : BOOLEAN READ FStandalone; // Standalone Declaration from Prolog + PROPERTY RootName : STRING READ FRootName; // Name of the Root Element + PROPERTY Normalize : BOOLEAN READ FNormalize WRITE FNormalize; // True if Content is to be normalized + PROPERTY Source : STRING READ FSource; // Name of Document Source (Filename) + PROPERTY DocBuffer : PChar READ GetDocBuffer; // Returns document buffer + PUBLIC // --- DTD Objects + Elements : TElemList; // Elements: List of TElemDef (contains Attribute Definitions) + Entities : TNvpList; // General Entities: List of TEntityDef + ParEntities : TNvpList; // Parameter Entities: List of TEntityDef + Notations : TNvpList; // Notations: List of TNotationDef + PUBLIC + CONSTRUCTOR Create; + DESTRUCTOR Destroy; OVERRIDE; + + // --- Document Handling + FUNCTION LoadFromFile (Filename : STRING; + FileMode : INTEGER = fmOpenRead OR fmShareDenyNone) : BOOLEAN; + // Loads Document from given file + FUNCTION LoadFromBuffer (Buffer : PChar) : BOOLEAN; // Loads Document from another buffer + PROCEDURE SetBuffer (Buffer : PChar); // References another buffer + PROCEDURE Clear; // Clear Document + + PUBLIC + // --- Scanning through the document + CurPartType : TPartType; // Current Type + CurName : STRING; // Current Name + CurContent : STRING; // Current Normalized Content + CurStart : PChar; // Current First character + CurFinal : PChar; // Current Last character + CurAttr : TAttrList; // Current Attribute List + PROPERTY CurEncoding : STRING READ FCurEncoding; // Current Encoding + PROCEDURE StartScan; + FUNCTION Scan : BOOLEAN; + + // --- Events / Callbacks + FUNCTION LoadExternalEntity (SystemId, PublicId, + Notation : STRING) : TXmlParser; VIRTUAL; + FUNCTION TranslateEncoding (CONST Source : STRING) : STRING; VIRTUAL; + PROCEDURE DtdElementFound (DtdElementRec : TDtdElementRec); VIRTUAL; + END; + + TValueType = // --- Attribute Value Type + (vtNormal, // Normal specified Attribute + vtImplied, // #IMPLIED attribute value + vtFixed, // #FIXED attribute value + vtDefault); // Attribute value from default value in !ATTLIST declaration + + TAttrDefault = // --- Attribute Default Type + (adDefault, // Normal default value + adRequired, // #REQUIRED attribute + adImplied, // #IMPLIED attribute + adFixed); // #FIXED attribute + + TAttrType = // --- Type of attribute + (atUnknown, // Unknown type + atCData, // Character data only + atID, // ID + atIdRef, // ID Reference + atIdRefs, // Several ID References, separated by Whitespace + atEntity, // Name of an unparsed Entity + atEntities, // Several unparsed Entity names, separated by Whitespace + atNmToken, // Name Token + atNmTokens, // Several Name Tokens, separated by Whitespace + atNotation, // A selection of Notation names (Unparsed Entity) + atEnumeration); // Enumeration + + TElemType = // --- Element content type + (etEmpty, // Element is always empty + etAny, // Element can have any mixture of PCDATA and any elements + etChildren, // Element must contain only elements + etMixed); // Mixed PCDATA and elements + + (*$IFDEF HAS_CONTNRS_UNIT *) + TObjectList = Contnrs.TObjectList; // Re-Export this identifier + (*$ELSE *) + TObjectList = CLASS (TList) + DESTRUCTOR Destroy; OVERRIDE; + PROCEDURE Delete (Index : INTEGER); + PROCEDURE Clear; OVERRIDE; + END; + (*$ENDIF *) + + TNvpNode = CLASS // Name-Value Pair Node + Name : STRING; + Value : STRING; + CONSTRUCTOR Create (TheName : STRING = ''; TheValue : STRING = ''); + END; + + TNvpList = CLASS (TObjectList) // Name-Value Pair List + PROCEDURE Add (Node : TNvpNode); + FUNCTION Node (Name : STRING) : TNvpNode; OVERLOAD; + FUNCTION Node (Index : INTEGER) : TNvpNode; OVERLOAD; + FUNCTION Value (Name : STRING) : STRING; OVERLOAD; + FUNCTION Value (Index : INTEGER) : STRING; OVERLOAD; + FUNCTION Name (Index : INTEGER) : STRING; + END; + + TAttr = CLASS (TNvpNode) // Attribute of a Start-Tag or Empty-Element-Tag + ValueType : TValueType; + AttrType : TAttrType; + END; + + TAttrList = CLASS (TNvpList) // List of Attributes + PROCEDURE Analyze (Start : PChar; VAR Final : PChar); + END; + + TEntityStack = CLASS (TObjectList) // Stack where current position is stored before parsing entities + PROTECTED + Owner : TXmlParser; + PUBLIC + CONSTRUCTOR Create (TheOwner : TXmlParser); + PROCEDURE Push (LastPos : PChar); OVERLOAD; + PROCEDURE Push (Instance : TObject; LastPos : PChar); OVERLOAD; + FUNCTION Pop : PChar; // Returns next char or NIL if EOF is reached. Frees Instance. + END; + + TAttrDef = CLASS (TNvpNode) // Represents a <!ATTLIST Definition. "Value" is the default value + TypeDef : STRING; // Type definition from the DTD + Notations : STRING; // Notation List, separated by pipe symbols '|' + AttrType : TAttrType; // Attribute Type + DefaultType : TAttrDefault; // Default Type + END; + + TElemDef = CLASS (TNvpList) // Represents a <!ELEMENT Definition. Is a list of TAttrDef-Nodes + Name : STRING; // Element name + ElemType : TElemType; // Element type + Definition : STRING; // Element definition from DTD + END; + + TElemList = CLASS (TObjectList) // List of TElemDef nodes + FUNCTION Node (Name : STRING) : TElemDef; + PROCEDURE Add (Node : TElemDef); + END; + + TEntityDef = CLASS (TNvpNode) // Represents a <!ENTITY Definition. + SystemId : STRING; + PublicId : STRING; + NotationName : STRING; + END; + + TNotationDef = CLASS (TNvpNode) // Represents a <!NOTATION Definition. Value is the System ID + PublicId : STRING; + END; + + TCharset = SET OF CHAR; + + +CONST + CWhitespace = [#32, #9, #13, #10]; // Whitespace characters (XmlSpec 2.3) + CLetter = [#$41..#$5A, #$61..#$7A, #$C0..#$D6, #$D8..#$F6, #$F8..#$FF]; + CDigit = [#$30..#$39]; + CNameChar = CLetter + CDigit + ['.', '-', '_', ':', #$B7]; + CNameStart = CLetter + ['_', ':']; + CQuoteChar = ['"', '''']; + CPubidChar = [#32, ^M, ^J, #9, 'a'..'z', 'A'..'Z', '0'..'9', + '-', '''', '(', ')', '+', ',', '.', '/', ':', + '=', '?', ';', '!', '*', '#', '@', '$', '_', '%']; + + CDStart = '<![CDATA['; + CDEnd = ']]>'; + + // --- Name Constants for the above enumeration types + CPartType_Name : ARRAY [TPartType] OF STRING = + ('', 'XML Prolog', 'Comment', 'PI', + 'DTD Declaration', 'Start Tag', 'Empty Tag', 'End Tag', + 'Text', 'CDATA'); + CValueType_Name : ARRAY [TValueType] OF STRING = ('Normal', 'Implied', 'Fixed', 'Default'); + CAttrDefault_Name : ARRAY [TAttrDefault] OF STRING = ('Default', 'Required', 'Implied', 'Fixed'); + CElemType_Name : ARRAY [TElemType] OF STRING = ('Empty', 'Any', 'Childs only', 'Mixed'); + CAttrType_Name : ARRAY [TAttrType] OF STRING = ('Unknown', 'CDATA', + 'ID', 'IDREF', 'IDREFS', + 'ENTITY', 'ENTITIES', + 'NMTOKEN', 'NMTOKENS', + 'Notation', 'Enumeration'); + +FUNCTION ConvertWs (Source: STRING; PackWs: BOOLEAN) : STRING; // Convert WS to spaces #x20 +PROCEDURE SetStringSF (VAR S : STRING; BufferStart, BufferFinal : PChar); // SetString by Start/Final of buffer +FUNCTION StrSFPas (Start, Finish : PChar) : STRING; // Convert buffer part to Pascal string +FUNCTION TrimWs (Source : STRING) : STRING; // Trim Whitespace + +FUNCTION AnsiToUtf8 (Source : ANSISTRING) : STRING; // Convert Win-1252 to UTF-8 +FUNCTION Utf8ToAnsi (Source : STRING; UnknownChar : CHAR = '¿') : ANSISTRING; // Convert UTF-8 to Win-1252 + + +(* +=============================================================================================== +TCustomXmlScanner event based component wrapper for TXmlParser +=============================================================================================== +*) + +TYPE + TCustomXmlScanner = CLASS; + TXmlPrologEvent = PROCEDURE (Sender : TObject; XmlVersion, Encoding: STRING; Standalone : BOOLEAN) OF OBJECT; + TCommentEvent = PROCEDURE (Sender : TObject; Comment : STRING) OF OBJECT; + TPIEvent = PROCEDURE (Sender : TObject; Target, Content: STRING; Attributes : TAttrList) OF OBJECT; + TDtdEvent = PROCEDURE (Sender : TObject; RootElementName : STRING) OF OBJECT; + TStartTagEvent = PROCEDURE (Sender : TObject; TagName : STRING; Attributes : TAttrList) OF OBJECT; + TEndTagEvent = PROCEDURE (Sender : TObject; TagName : STRING) OF OBJECT; + TContentEvent = PROCEDURE (Sender : TObject; Content : STRING) OF OBJECT; + TElementEvent = PROCEDURE (Sender : TObject; ElemDef : TElemDef) OF OBJECT; + TEntityEvent = PROCEDURE (Sender : TObject; EntityDef : TEntityDef) OF OBJECT; + TNotationEvent = PROCEDURE (Sender : TObject; NotationDef : TNotationDef) OF OBJECT; + TErrorEvent = PROCEDURE (Sender : TObject; ErrorPos : PChar) OF OBJECT; + TExternalEvent = PROCEDURE (Sender : TObject; SystemId, PublicId, NotationId : STRING; + VAR Result : TXmlParser) OF OBJECT; + TEncodingEvent = FUNCTION (Sender : TObject; CurrentEncoding, Source : STRING) : STRING OF OBJECT; + + + TCustomXmlScanner = CLASS (TComponent) + PROTECTED + FXmlParser : TXmlParser; + FOnXmlProlog : TXmlPrologEvent; + FOnComment : TCommentEvent; + FOnPI : TPIEvent; + FOnDtdRead : TDtdEvent; + FOnStartTag : TStartTagEvent; + FOnEmptyTag : TStartTagEvent; + FOnEndTag : TEndTagEvent; + FOnContent : TContentEvent; + FOnCData : TContentEvent; + FOnElement : TElementEvent; + FOnAttList : TElementEvent; + FOnEntity : TEntityEvent; + FOnNotation : TNotationEvent; + FOnDtdError : TErrorEvent; + FOnLoadExternal : TExternalEvent; + FOnTranslateEncoding : TEncodingEvent; + FStopParser : BOOLEAN; + FUNCTION GetNormalize : BOOLEAN; + PROCEDURE SetNormalize (Value : BOOLEAN); + + PROCEDURE WhenXmlProlog(XmlVersion, Encoding: STRING; Standalone : BOOLEAN); VIRTUAL; + PROCEDURE WhenComment (Comment : STRING); VIRTUAL; + PROCEDURE WhenPI (Target, Content: STRING; Attributes : TAttrList); VIRTUAL; + PROCEDURE WhenDtdRead (RootElementName : STRING); VIRTUAL; + PROCEDURE WhenStartTag (TagName : STRING; Attributes : TAttrList); VIRTUAL; + PROCEDURE WhenEmptyTag (TagName : STRING; Attributes : TAttrList); VIRTUAL; + PROCEDURE WhenEndTag (TagName : STRING); VIRTUAL; + PROCEDURE WhenContent (Content : STRING); VIRTUAL; + PROCEDURE WhenCData (Content : STRING); VIRTUAL; + PROCEDURE WhenElement (ElemDef : TElemDef); VIRTUAL; + PROCEDURE WhenAttList (ElemDef : TElemDef); VIRTUAL; + PROCEDURE WhenEntity (EntityDef : TEntityDef); VIRTUAL; + PROCEDURE WhenNotation (NotationDef : TNotationDef); VIRTUAL; + PROCEDURE WhenDtdError (ErrorPos : PChar); VIRTUAL; + + PUBLIC + CONSTRUCTOR Create (AOwner: TComponent); OVERRIDE; + DESTRUCTOR Destroy; OVERRIDE; + + PROCEDURE LoadFromFile (Filename : TFilename); // Load XML Document from file + PROCEDURE LoadFromBuffer (Buffer : PChar); // Load XML Document from buffer + PROCEDURE SetBuffer (Buffer : PChar); // Refer to Buffer + FUNCTION GetFilename : TFilename; + + PROCEDURE Execute; // Perform scanning + + PROTECTED + PROPERTY XmlParser : TXmlParser READ FXmlParser; + PROPERTY StopParser : BOOLEAN READ FStopParser WRITE FStopParser; + PROPERTY Filename : TFilename READ GetFilename WRITE LoadFromFile; + PROPERTY Normalize : BOOLEAN READ GetNormalize WRITE SetNormalize; + PROPERTY OnXmlProlog : TXmlPrologEvent READ FOnXmlProlog WRITE FOnXmlProlog; + PROPERTY OnComment : TCommentEvent READ FOnComment WRITE FOnComment; + PROPERTY OnPI : TPIEvent READ FOnPI WRITE FOnPI; + PROPERTY OnDtdRead : TDtdEvent READ FOnDtdRead WRITE FOnDtdRead; + PROPERTY OnStartTag : TStartTagEvent READ FOnStartTag WRITE FOnStartTag; + PROPERTY OnEmptyTag : TStartTagEvent READ FOnEmptyTag WRITE FOnEmptyTag; + PROPERTY OnEndTag : TEndTagEvent READ FOnEndTag WRITE FOnEndTag; + PROPERTY OnContent : TContentEvent READ FOnContent WRITE FOnContent; + PROPERTY OnCData : TContentEvent READ FOnCData WRITE FOnCData; + PROPERTY OnElement : TElementEvent READ FOnElement WRITE FOnElement; + PROPERTY OnAttList : TElementEvent READ FOnAttList WRITE FOnAttList; + PROPERTY OnEntity : TEntityEvent READ FOnEntity WRITE FOnEntity; + PROPERTY OnNotation : TNotationEvent READ FOnNotation WRITE FOnNotation; + PROPERTY OnDtdError : TErrorEvent READ FOnDtdError WRITE FOnDtdError; + PROPERTY OnLoadExternal : TExternalEvent READ FOnLoadExternal WRITE FOnLoadExternal; + PROPERTY OnTranslateEncoding : TEncodingEvent READ FOnTranslateEncoding WRITE FOnTranslateEncoding; + END; + +(* +=============================================================================================== +IMPLEMENTATION +=============================================================================================== +*) + +IMPLEMENTATION + + +(* +=============================================================================================== +Unicode and UTF-8 stuff +=============================================================================================== +*) + +CONST + // --- Character Translation Table for Unicode <-> Win-1252 + WIN1252_UNICODE : ARRAY [$00..$FF] OF WORD = ( + $0000, $0001, $0002, $0003, $0004, $0005, $0006, $0007, $0008, $0009, + $000A, $000B, $000C, $000D, $000E, $000F, $0010, $0011, $0012, $0013, + $0014, $0015, $0016, $0017, $0018, $0019, $001A, $001B, $001C, $001D, + $001E, $001F, $0020, $0021, $0022, $0023, $0024, $0025, $0026, $0027, + $0028, $0029, $002A, $002B, $002C, $002D, $002E, $002F, $0030, $0031, + $0032, $0033, $0034, $0035, $0036, $0037, $0038, $0039, $003A, $003B, + $003C, $003D, $003E, $003F, $0040, $0041, $0042, $0043, $0044, $0045, + $0046, $0047, $0048, $0049, $004A, $004B, $004C, $004D, $004E, $004F, + $0050, $0051, $0052, $0053, $0054, $0055, $0056, $0057, $0058, $0059, + $005A, $005B, $005C, $005D, $005E, $005F, $0060, $0061, $0062, $0063, + $0064, $0065, $0066, $0067, $0068, $0069, $006A, $006B, $006C, $006D, + $006E, $006F, $0070, $0071, $0072, $0073, $0074, $0075, $0076, $0077, + $0078, $0079, $007A, $007B, $007C, $007D, $007E, $007F, + + $20AC, $0081, $201A, $0192, $201E, $2026, $2020, $2021, $02C6, $2030, + $0160, $2039, $0152, $008D, $017D, $008F, $0090, $2018, $2019, $201C, + $201D, $2022, $2013, $2014, $02DC, $2122, $0161, $203A, $0153, $009D, + $017E, $0178, $00A0, $00A1, $00A2, $00A3, $00A4, $00A5, $00A6, $00A7, + $00A8, $00A9, $00AA, $00AB, $00AC, $00AD, $00AE, $00AF, $00B0, $00B1, + $00B2, $00B3, $00B4, $00B5, $00B6, $00B7, $00B8, $00B9, $00BA, $00BB, + $00BC, $00BD, $00BE, $00BF, $00C0, $00C1, $00C2, $00C3, $00C4, $00C5, + $00C6, $00C7, $00C8, $00C9, $00CA, $00CB, $00CC, $00CD, $00CE, $00CF, + $00D0, $00D1, $00D2, $00D3, $00D4, $00D5, $00D6, $00D7, $00D8, $00D9, + $00DA, $00DB, $00DC, $00DD, $00DE, $00DF, $00E0, $00E1, $00E2, $00E3, + $00E4, $00E5, $00E6, $00E7, $00E8, $00E9, $00EA, $00EB, $00EC, $00ED, + $00EE, $00EF, $00F0, $00F1, $00F2, $00F3, $00F4, $00F5, $00F6, $00F7, + $00F8, $00F9, $00FA, $00FB, $00FC, $00FD, $00FE, $00FF); + +(* UTF-8 (somewhat simplified) + ----- + Character Range Byte sequence + --------------- -------------------------- (x=Bits from original character) + $0000..$007F 0xxxxxxx + $0080..$07FF 110xxxxx 10xxxxxx + $8000..$FFFF 1110xxxx 10xxxxxx 10xxxxxx + + Example + -------- + Transforming the Unicode character U+00E4 LATIN SMALL LETTER A WITH DIAERESIS ("ä"): + + ISO-8859-1, Decimal 228 + Win1252, Hex $E4 + ANSI Bin 1110 0100 + abcd efgh + + UTF-8 Binary 1100xxab 10cdefgh + Binary 11000011 10100100 + Hex $C3 $A4 + Decimal 195 164 + ANSI Ã ¤ *) + + +FUNCTION AnsiToUtf8 (Source : ANSISTRING) : STRING; + (* Converts the given Windows ANSI (Win1252) String to UTF-8. *) +VAR + I : INTEGER; // Loop counter + U : WORD; // Current Unicode value + Len : INTEGER; // Current real length of "Result" string +BEGIN + SetLength (Result, Length (Source) * 3); // Worst case + Len := 0; + FOR I := 1 TO Length (Source) DO BEGIN + U := WIN1252_UNICODE [ORD (Source [I])]; + CASE U OF + $0000..$007F : BEGIN + INC (Len); + Result [Len] := CHR (U); + END; + $0080..$07FF : BEGIN + INC (Len); + Result [Len] := CHR ($C0 OR (U SHR 6)); + INC (Len); + Result [Len] := CHR ($80 OR (U AND $3F)); + END; + $0800..$FFFF : BEGIN + INC (Len); + Result [Len] := CHR ($E0 OR (U SHR 12)); + INC (Len); + Result [Len] := CHR ($80 OR ((U SHR 6) AND $3F)); + INC (Len); + Result [Len] := CHR ($80 OR (U AND $3F)); + END; + END; + END; + SetLength (Result, Len); +END; + + +FUNCTION Utf8ToAnsi (Source : STRING; UnknownChar : CHAR = '¿') : ANSISTRING; + (* Converts the given UTF-8 String to Windows ANSI (Win-1252). + If a character can not be converted, the "UnknownChar" is inserted. *) +VAR + SourceLen : INTEGER; // Length of Source string + I, K : INTEGER; + A : BYTE; // Current ANSI character value + U : WORD; + Ch : CHAR; // Dest char + Len : INTEGER; // Current real length of "Result" string +BEGIN + SourceLen := Length (Source); + SetLength (Result, SourceLen); // Enough room to live + Len := 0; + I := 1; + WHILE I <= SourceLen DO BEGIN + A := ORD (Source [I]); + IF A < $80 THEN BEGIN // Range $0000..$007F + INC (Len); + Result [Len] := Source [I]; + INC (I); + END + ELSE BEGIN // Determine U, Inc I + IF (A AND $E0 = $C0) AND (I < SourceLen) THEN BEGIN // Range $0080..$07FF + U := (WORD (A AND $1F) SHL 6) OR (ORD (Source [I+1]) AND $3F); + INC (I, 2); + END + ELSE IF (A AND $F0 = $E0) AND (I < SourceLen-1) THEN BEGIN // Range $0800..$FFFF + U := (WORD (A AND $0F) SHL 12) OR + (WORD (ORD (Source [I+1]) AND $3F) SHL 6) OR + ( ORD (Source [I+2]) AND $3F); + INC (I, 3); + END + ELSE BEGIN // Unknown/unsupported + INC (I); + FOR K := 7 DOWNTO 0 DO + IF A AND (1 SHL K) = 0 THEN BEGIN + INC (I, (A SHR (K+1))-1); + BREAK; + END; + U := WIN1252_UNICODE [ORD (UnknownChar)]; + END; + Ch := UnknownChar; // Retrieve ANSI char + FOR A := $00 TO $FF DO + IF WIN1252_UNICODE [A] = U THEN BEGIN + Ch := CHR (A); + BREAK; + END; + INC (Len); + Result [Len] := Ch; + END; + END; + SetLength (Result, Len); +END; + + +(* +=============================================================================================== +"Special" Helper Functions + +Don't ask me why. But including these functions makes the parser *DRAMATICALLY* faster +on my K6-233 machine. You can test it yourself just by commenting them out. +They do exactly the same as the Assembler routines defined in SysUtils. +(This is where you can see how great the Delphi compiler really is. The compiled code is +faster than hand-coded assembler!) +=============================================================================================== +--> Just move this line below the StrScan function --> *) + + +FUNCTION StrPos (CONST Str, SearchStr : PChar) : PChar; + // Same functionality as SysUtils.StrPos +VAR + First : CHAR; + Len : INTEGER; +BEGIN + First := SearchStr^; + Len := StrLen (SearchStr); + Result := Str; + REPEAT + IF Result^ = First THEN + IF StrLComp (Result, SearchStr, Len) = 0 THEN BREAK; + IF Result^ = #0 THEN BEGIN + Result := NIL; + BREAK; + END; + INC (Result); + UNTIL FALSE; +END; + + +FUNCTION StrScan (CONST Start : PChar; CONST Ch : CHAR) : PChar; + // Same functionality as SysUtils.StrScan +BEGIN + Result := Start; + WHILE Result^ <> Ch DO BEGIN + IF Result^ = #0 THEN BEGIN + Result := NIL; + EXIT; + END; + INC (Result); + END; +END; + + +(* +=============================================================================================== +Helper Functions +=============================================================================================== +*) + +FUNCTION DelChars (Source : STRING; CharsToDelete : TCharset) : STRING; + // Delete all "CharsToDelete" from the string +VAR + I : INTEGER; +BEGIN + Result := Source; + FOR I := Length (Result) DOWNTO 1 DO + IF Result [I] IN CharsToDelete THEN + Delete (Result, I, 1); +END; + + +FUNCTION TrimWs (Source : STRING) : STRING; + // Trimms off Whitespace characters from both ends of the string +VAR + I : INTEGER; +BEGIN + // --- Trim Left + I := 1; + WHILE (I <= Length (Source)) AND (Source [I] IN CWhitespace) DO + INC (I); + Result := Copy (Source, I, MaxInt); + + // --- Trim Right + I := Length (Result); + WHILE (I > 1) AND (Result [I] IN CWhitespace) DO + DEC (I); + Delete (Result, I+1, Length (Result)-I); +END; + + +FUNCTION ConvertWs (Source: STRING; PackWs: BOOLEAN) : STRING; + // Converts all Whitespace characters to the Space #x20 character + // If "PackWs" is true, contiguous Whitespace characters are packed to one +VAR + I : INTEGER; +BEGIN + Result := Source; + FOR I := Length (Result) DOWNTO 1 DO + IF (Result [I] IN CWhitespace) THEN + IF PackWs AND (I > 1) AND (Result [I-1] IN CWhitespace) + THEN Delete (Result, I, 1) + ELSE Result [I] := #32; +END; + + +PROCEDURE SetStringSF (VAR S : STRING; BufferStart, BufferFinal : PChar); +BEGIN + SetString (S, BufferStart, BufferFinal-BufferStart+1); +END; + + +FUNCTION StrLPas (Start : PChar; Len : INTEGER) : STRING; +BEGIN + SetString (Result, Start, Len); +END; + + +FUNCTION StrSFPas (Start, Finish : PChar) : STRING; +BEGIN + SetString (Result, Start, Finish-Start+1); +END; + + +FUNCTION StrScanE (CONST Source : PChar; CONST CharToScanFor : CHAR) : PChar; + // If "CharToScanFor" is not found, StrScanE returns the last char of the + // buffer instead of NIL +BEGIN + Result := StrScan (Source, CharToScanFor); + IF Result = NIL THEN + Result := StrEnd (Source)-1; +END; + + +PROCEDURE ExtractName (Start : PChar; Terminators : TCharset; VAR Final : PChar); + (* Extracts the complete Name beginning at "Start". + It is assumed that the name is contained in Markup, so the '>' character is + always a Termination. + Start: IN Pointer to first char of name. Is always considered to be valid + Terminators: IN Characters which terminate the name + Final: OUT Pointer to last char of name *) +BEGIN + Final := Start+1; + Include (Terminators, #0); + Include (Terminators, '>'); + WHILE NOT (Final^ IN Terminators) DO + INC (Final); + DEC (Final); +END; + + +PROCEDURE ExtractQuote (Start : PChar; VAR Content : STRING; VAR Final : PChar); + (* Extract a string which is contained in single or double Quotes. + Start: IN Pointer to opening quote + Content: OUT The quoted string + Final: OUT Pointer to closing quote *) +BEGIN + Final := StrScan (Start+1, Start^); + IF Final = NIL THEN BEGIN + Final := StrEnd (Start+1)-1; + SetString (Content, Start+1, Final-Start); + END + ELSE + SetString (Content, Start+1, Final-1-Start); +END; + + +(* +=============================================================================================== +TEntityStackNode +This Node is pushed to the "Entity Stack" whenever the parser parses entity replacement text. +The "Instance" field holds the Instance pointer of an External Entity buffer. When it is +popped, the Instance is freed. +The "Encoding" field holds the name of the Encoding. External Parsed Entities may have +another encoding as the document entity (XmlSpec 4.3.3). So when there is an "<?xml" PI +found in the stream (= Text Declaration at the beginning of external parsed entities), the +Encoding found there is used for the External Entity (is assigned to TXmlParser.CurEncoding) +Default Encoding is for the Document Entity is UTF-8. It is assumed that External Entities +have the same Encoding as the Document Entity, unless they carry a Text Declaration. +=============================================================================================== +*) + +TYPE + TEntityStackNode = CLASS + Instance : TObject; + Encoding : STRING; + LastPos : PChar; + END; + +(* +=============================================================================================== +TEntityStack +For nesting of Entities. +When there is an entity reference found in the data stream, the corresponding entity +definition is searched and the current position is pushed to this stack. +From then on, the program scans the entitiy replacement text as if it were normal content. +When the parser reaches the end of an entity, the current position is popped off the +stack again. +=============================================================================================== +*) + +CONSTRUCTOR TEntityStack.Create (TheOwner : TXmlParser); +BEGIN + INHERITED Create; + Owner := TheOwner; +END; + + +PROCEDURE TEntityStack.Push (LastPos : PChar); +BEGIN + Push (NIL, LastPos); +END; + + +PROCEDURE TEntityStack.Push (Instance : TObject; LastPos : PChar); +VAR + ESN : TEntityStackNode; +BEGIN + ESN := TEntityStackNode.Create; + ESN.Instance := Instance; + ESN.Encoding := Owner.FCurEncoding; // Save current Encoding + ESN.LastPos := LastPos; + Add (ESN); +END; + + +FUNCTION TEntityStack.Pop : PChar; +VAR + ESN : TEntityStackNode; +BEGIN + IF Count > 0 THEN BEGIN + ESN := TEntityStackNode (Items [Count-1]); + Result := ESN.LastPos; + IF ESN.Instance <> NIL THEN + ESN.Instance.Free; + IF ESN.Encoding <> '' THEN + Owner.FCurEncoding := ESN.Encoding; // Restore current Encoding + Delete (Count-1); + END + ELSE + Result := NIL; +END; + + +(* +=============================================================================================== +TExternalID +----------- +XmlSpec 4.2.2: ExternalID ::= 'SYSTEM' S SystemLiteral | + 'PUBLIC' S PubidLiteral S SystemLiteral +XmlSpec 4.7: PublicID ::= 'PUBLIC' S PubidLiteral +SystemLiteral and PubidLiteral are quoted +=============================================================================================== +*) + +TYPE + TExternalID = CLASS + PublicId : STRING; + SystemId : STRING; + Final : PChar; + CONSTRUCTOR Create (Start : PChar); + END; + +CONSTRUCTOR TExternalID.Create (Start : PChar); +BEGIN + INHERITED Create; + Final := Start; + IF StrLComp (Start, 'SYSTEM', 6) = 0 THEN BEGIN + WHILE NOT (Final^ IN (CQuoteChar + [#0, '>', '['])) DO INC (Final); + IF NOT (Final^ IN CQuoteChar) THEN EXIT; + ExtractQuote (Final, SystemID, Final); + END + ELSE IF StrLComp (Start, 'PUBLIC', 6) = 0 THEN BEGIN + WHILE NOT (Final^ IN (CQuoteChar + [#0, '>', '['])) DO INC (Final); + IF NOT (Final^ IN CQuoteChar) THEN EXIT; + ExtractQuote (Final, PublicID, Final); + INC (Final); + WHILE NOT (Final^ IN (CQuoteChar + [#0, '>', '['])) DO INC (Final); + IF NOT (Final^ IN CQuoteChar) THEN EXIT; + ExtractQuote (Final, SystemID, Final); + END; +END; + + +(* +=============================================================================================== +TXmlParser +=============================================================================================== +*) + +CONSTRUCTOR TXmlParser.Create; +BEGIN + INHERITED Create; + FBuffer := NIL; + FBufferSize := 0; + Elements := TElemList.Create; + Entities := TNvpList.Create; + ParEntities := TNvpList.Create; + Notations := TNvpList.Create; + CurAttr := TAttrList.Create; + EntityStack := TEntityStack.Create (Self); + Clear; +END; + + +DESTRUCTOR TXmlParser.Destroy; +BEGIN + Clear; + Elements.Free; + Entities.Free; + ParEntities.Free; + Notations.Free; + CurAttr.Free; + EntityStack.Free; + INHERITED Destroy; +END; + + +PROCEDURE TXmlParser.Clear; + // Free Buffer and clear all object attributes +BEGIN + IF (FBufferSize > 0) AND (FBuffer <> NIL) THEN + FreeMem (FBuffer); + FBuffer := NIL; + FBufferSize := 0; + FSource := ''; + FXmlVersion := ''; + FEncoding := ''; + FStandalone := FALSE; + FRootName := ''; + FDtdcFinal := NIL; + FNormalize := TRUE; + Elements.Clear; + Entities.Clear; + ParEntities.Clear; + Notations.Clear; + CurAttr.Clear; + EntityStack.Clear; +END; + + +FUNCTION TXmlParser.LoadFromFile (Filename : STRING; FileMode : INTEGER = fmOpenRead OR fmShareDenyNone) : BOOLEAN; + // Loads Document from given file + // Returns TRUE if successful +VAR + f : FILE; + ReadIn : INTEGER; + OldFileMode : INTEGER; +BEGIN + Result := FALSE; + Clear; + + // --- Open File + OldFileMode := SYSTEM.FileMode; + TRY + SYSTEM.FileMode := FileMode; + TRY + AssignFile (f, Filename); + Reset (f, 1); + EXCEPT + EXIT; + END; + + TRY + // --- Allocate Memory + TRY + FBufferSize := Filesize (f) + 1; + GetMem (FBuffer, FBufferSize); + EXCEPT + Clear; + EXIT; + END; + + // --- Read File + TRY + BlockRead (f, FBuffer^, FBufferSize, ReadIn); + (FBuffer+ReadIn)^ := #0; // NULL termination + EXCEPT + Clear; + EXIT; + END; + FINALLY + CloseFile (f); + END; + + FSource := Filename; + Result := TRUE; + + FINALLY + SYSTEM.FileMode := OldFileMode; + END; +END; + + +FUNCTION TXmlParser.LoadFromBuffer (Buffer : PChar) : BOOLEAN; + // Loads Document from another buffer + // Returns TRUE if successful + // The "Source" property becomes '<MEM>' if successful +BEGIN + Result := FALSE; + Clear; + FBufferSize := StrLen (Buffer) + 1; + TRY + GetMem (FBuffer, FBufferSize); + EXCEPT + Clear; + EXIT; + END; + StrCopy (FBuffer, Buffer); + FSource := '<MEM>'; + Result := TRUE; +END; + + +PROCEDURE TXmlParser.SetBuffer (Buffer : PChar); // References another buffer +BEGIN + Clear; + FBuffer := Buffer; + FBufferSize := 0; + FSource := '<REFERENCE>'; +END; + + +//----------------------------------------------------------------------------------------------- +// Scanning through the document +//----------------------------------------------------------------------------------------------- + +PROCEDURE TXmlParser.StartScan; +BEGIN + CurPartType := ptNone; + CurName := ''; + CurContent := ''; + CurStart := NIL; + CurFinal := NIL; + CurAttr.Clear; + EntityStack.Clear; +END; + + +FUNCTION TXmlParser.Scan : BOOLEAN; + // Scans the next Part + // Returns TRUE if a part could be found, FALSE if there is no part any more + // + // "IsDone" can be set to FALSE by AnalyzeText in order to go to the next part + // if there is no Content due to normalization +VAR + IsDone : BOOLEAN; +BEGIN + REPEAT + IsDone := TRUE; + + // --- Start of next Part + IF CurStart = NIL + THEN CurStart := DocBuffer + ELSE CurStart := CurFinal+1; + CurFinal := CurStart; + + // --- End of Document of Pop off a new part from the Entity stack? + IF CurStart^ = #0 THEN + CurStart := EntityStack.Pop; + + // --- No Document or End Of Document: Terminate Scan + IF (CurStart = NIL) OR (CurStart^ = #0) THEN BEGIN + CurStart := StrEnd (DocBuffer); + CurFinal := CurStart-1; + EntityStack.Clear; + Result := FALSE; + EXIT; + END; + + IF (StrLComp (CurStart, '<?xml', 5) = 0) AND + ((CurStart+5)^ IN CWhitespace) THEN AnalyzeProlog // XML Declaration, Text Declaration + ELSE IF StrLComp (CurStart, '<?', 2) = 0 THEN AnalyzePI (CurStart, CurFinal) // PI + ELSE IF StrLComp (CurStart, '<!--', 4) = 0 THEN AnalyzeComment (CurStart, CurFinal) // Comment + ELSE IF StrLComp (CurStart, '<!DOCTYPE', 9) = 0 THEN AnalyzeDtdc // DTDc + ELSE IF StrLComp (CurStart, CDStart, Length (CDStart)) = 0 THEN AnalyzeCdata // CDATA Section + ELSE IF StrLComp (CurStart, '<', 1) = 0 THEN AnalyzeTag // Start-Tag, End-Tag, Empty-Element-Tag + ELSE AnalyzeText (IsDone); // Text Content + UNTIL IsDone; + Result := TRUE; +END; + + +PROCEDURE TXmlParser.AnalyzeProlog; + // Analyze XML Prolog or Text Declaration +VAR + F : PChar; +BEGIN + CurAttr.Analyze (CurStart+5, F); + IF EntityStack.Count = 0 THEN BEGIN + FXmlVersion := CurAttr.Value ('version'); + FEncoding := CurAttr.Value ('encoding'); + FStandalone := CurAttr.Value ('standalone') = 'yes'; + END; + CurFinal := StrPos (F, '?>'); + IF CurFinal <> NIL + THEN INC (CurFinal) + ELSE CurFinal := StrEnd (CurStart)-1; + FCurEncoding := AnsiUpperCase (CurAttr.Value ('encoding')); + IF FCurEncoding = '' THEN + FCurEncoding := 'UTF-8'; // Default XML Encoding is UTF-8 + CurPartType := ptXmlProlog; + CurName := ''; + CurContent := ''; +END; + + +PROCEDURE TXmlParser.AnalyzeComment (Start : PChar; VAR Final : PChar); + // Analyze Comments +BEGIN + Final := StrPos (Start+4, '-->'); + IF Final = NIL + THEN Final := StrEnd (Start)-1 + ELSE INC (Final, 2); + CurPartType := ptComment; +END; + + +PROCEDURE TXmlParser.AnalyzePI (Start : PChar; VAR Final : PChar); + // Analyze Processing Instructions (PI) + // This is also called for Character +VAR + F : PChar; +BEGIN + CurPartType := ptPI; + Final := StrPos (Start+2, '?>'); + IF Final = NIL + THEN Final := StrEnd (Start)-1 + ELSE INC (Final); + ExtractName (Start+2, CWhitespace + ['?', '>'], F); + SetStringSF (CurName, Start+2, F); + SetStringSF (CurContent, F+1, Final-2); + CurAttr.Analyze (F+1, F); +END; + + +PROCEDURE TXmlParser.AnalyzeDtdc; + (* Analyze Document Type Declaration + doctypedecl ::= '<!DOCTYPE' S Name (S ExternalID)? S? ('[' (markupdecl | PEReference | S)* ']' S?)? '>' + markupdecl ::= elementdecl | AttlistDecl | EntityDecl | NotationDecl | PI | Comment + PEReference ::= '%' Name ';' + + elementdecl ::= '<!ELEMENT' S Name S contentspec S? '>' + AttlistDecl ::= '<!ATTLIST' S Name AttDef* S? '>' + EntityDecl ::= '<!ENTITY' S Name S EntityDef S? '>' | + '<!ENTITY' S '%' S Name S PEDef S? '>' + NotationDecl ::= '<!NOTATION' S Name S (ExternalID | PublicID) S? '>' + PI ::= '<?' PITarget (S (Char* - (Char* '?>' Char* )))? '?>' + Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->' *) +TYPE + TPhase = (phName, phDtd, phInternal, phFinishing); +VAR + Phase : TPhase; + F : PChar; + ExternalID : TExternalID; + ExternalDTD : TXmlParser; + DER : TDtdElementRec; +BEGIN + DER.Start := CurStart; + EntityStack.Clear; // Clear stack for Parameter Entities + CurPartType := ptDtdc; + + // --- Don't read DTDc twice + IF FDtdcFinal <> NIL THEN BEGIN + CurFinal := FDtdcFinal; + EXIT; + END; + + // --- Scan DTDc + CurFinal := CurStart + 9; // First char after '<!DOCTYPE' + Phase := phName; + REPEAT + CASE CurFinal^ OF + '%' : BEGIN + PushPE (CurFinal); + CONTINUE; + END; + #0 : IF EntityStack.Count = 0 THEN + BREAK + ELSE BEGIN + CurFinal := EntityStack.Pop; + CONTINUE; + END; + '[' : BEGIN + Phase := phInternal; + AnalyzeDtdElements (CurFinal+1, CurFinal); + CONTINUE; + END; + ']' : Phase := phFinishing; + '>' : BREAK; + ELSE IF NOT (CurFinal^ IN CWhitespace) THEN BEGIN + CASE Phase OF + phName : IF (CurFinal^ IN CNameStart) THEN BEGIN + ExtractName (CurFinal, CWhitespace + ['[', '>'], F); + SetStringSF (FRootName, CurFinal, F); + CurFinal := F; + Phase := phDtd; + END; + phDtd : IF (StrLComp (CurFinal, 'SYSTEM', 6) = 0) OR + (StrLComp (CurFinal, 'PUBLIC', 6) = 0) THEN BEGIN + ExternalID := TExternalID.Create (CurFinal); + ExternalDTD := LoadExternalEntity (ExternalId.SystemId, ExternalID.PublicId, ''); + F := StrPos (ExternalDtd.DocBuffer, '<!'); + IF F <> NIL THEN + AnalyzeDtdElements (F, F); + ExternalDTD.Free; + CurFinal := ExternalID.Final; + ExternalID.Free; + END; + ELSE BEGIN + DER.ElementType := deError; + DER.Pos := CurFinal; + DER.Final := CurFinal; + DtdElementFound (DER); + END; + END; + + END; + END; + INC (CurFinal); + UNTIL FALSE; + + CurPartType := ptDtdc; + CurName := ''; + CurContent := ''; + + // It is an error in the document if "EntityStack" is not empty now + IF EntityStack.Count > 0 THEN BEGIN + DER.ElementType := deError; + DER.Final := CurFinal; + DER.Pos := CurFinal; + DtdElementFound (DER); + END; + + EntityStack.Clear; // Clear stack for General Entities + FDtdcFinal := CurFinal; +END; + + +PROCEDURE TXmlParser.AnalyzeDtdElements (Start : PChar; VAR Final : PChar); + // Analyze the "Elements" of a DTD contained in the external or + // internal DTD subset. +VAR + DER : TDtdElementRec; +BEGIN + Final := Start; + REPEAT + CASE Final^ OF + '%' : BEGIN + PushPE (Final); + CONTINUE; + END; + #0 : IF EntityStack.Count = 0 THEN + BREAK + ELSE BEGIN + CurFinal := EntityStack.Pop; + CONTINUE; + END; + ']', + '>' : BREAK; + '<' : IF StrLComp (Final, '<!ELEMENT', 9) = 0 THEN AnalyzeElementDecl (Final, Final) + ELSE IF StrLComp (Final, '<!ATTLIST', 9) = 0 THEN AnalyzeAttListDecl (Final, Final) + ELSE IF StrLComp (Final, '<!ENTITY', 8) = 0 THEN AnalyzeEntityDecl (Final, Final) + ELSE IF StrLComp (Final, '<!NOTATION', 10) = 0 THEN AnalyzeNotationDecl (Final, Final) + ELSE IF StrLComp (Final, '<?', 2) = 0 THEN BEGIN // PI in DTD + DER.ElementType := dePI; + DER.Start := Final; + AnalyzePI (Final, Final); + DER.Target := PChar (CurName); + DER.Content := PChar (CurContent); + DER.AttrList := CurAttr; + DER.Final := Final; + DtdElementFound (DER); + END + ELSE IF StrLComp (Final, '<!--', 4) = 0 THEN BEGIN // Comment in DTD + DER.ElementType := deComment; + DER.Start := Final; + AnalyzeComment (Final, Final); + DER.Final := Final; + DtdElementFound (DER); + END + ELSE BEGIN + DER.ElementType := deError; + DER.Start := Final; + DER.Pos := Final; + DER.Final := Final; + DtdElementFound (DER); + END; + + END; + INC (Final); + UNTIL FALSE; +END; + + +PROCEDURE TXmlParser.AnalyzeTag; + // Analyze Tags +VAR + S, F : PChar; + Attr : TAttr; + ElemDef : TElemDef; + AttrDef : TAttrDef; + I : INTEGER; +BEGIN + CurPartType := ptStartTag; + S := CurStart+1; + IF S^ = '/' THEN BEGIN + CurPartType := ptEndTag; + INC (S); + END; + ExtractName (S, CWhitespace + ['/'], F); + SetStringSF (CurName, S, F); + CurAttr.Analyze (F+1, CurFinal); + IF CurFinal^ = '/' THEN BEGIN + CurPartType := ptEmptyTag; + END; + CurFinal := StrScanE (CurFinal, '>'); + + // --- Set Default Attribute values for nonexistent attributes + IF (CurPartType = ptStartTag) OR (CurPartType = ptEmptyTag) THEN BEGIN + ElemDef := Elements.Node (CurName); + IF ElemDef <> NIL THEN BEGIN + FOR I := 0 TO ElemDef.Count-1 DO BEGIN + AttrDef := TAttrDef (ElemDef [I]); + Attr := TAttr (CurAttr.Node (AttrDef.Name)); + IF (Attr = NIL) AND (AttrDef.Value <> '') THEN BEGIN + Attr := TAttr.Create (AttrDef.Name, AttrDef.Value); + Attr.ValueType := vtDefault; + CurAttr.Add (Attr); + END; + IF Attr <> NIL THEN BEGIN + CASE AttrDef.DefaultType OF + adDefault : ; + adRequired : ; // -!- It is an error in the document if "Attr.Value" is an empty string + adImplied : Attr.ValueType := vtImplied; + adFixed : BEGIN + Attr.ValueType := vtFixed; + Attr.Value := AttrDef.Value; + END; + END; + Attr.AttrType := AttrDef.AttrType; + END; + END; + END; + + // --- Normalize Attribute Values. XmlSpec: + // - a character reference is processed by appending the referenced character to the attribute value + // - an entity reference is processed by recursively processing the replacement text of the entity + // - a whitespace character (#x20, #xD, #xA, #x9) is processed by appending #x20 to the normalized value, + // except that only a single #x20 is appended for a "#xD#xA" sequence that is part of an external + // parsed entity or the literal entity value of an internal parsed entity + // - other characters are processed by appending them to the normalized value + // If the declared value is not CDATA, then the XML processor must further process the + // normalized attribute value by discarding any leading and trailing space (#x20) characters, + // and by replacing sequences of space (#x20) characters by a single space (#x20) character. + // All attributes for which no declaration has been read should be treated by a + // non-validating parser as if declared CDATA. + // !!! The XML 1.0 SE specification is somewhat different here + // This code does not conform exactly to this specification + FOR I := 0 TO CurAttr.Count-1 DO + WITH TAttr (CurAttr [I]) DO BEGIN + ReplaceGeneralEntities (Value); + ReplaceCharacterEntities (Value); + IF (AttrType <> atCData) AND (AttrType <> atUnknown) + THEN Value := TranslateEncoding (TrimWs (ConvertWs (Value, TRUE))) + ELSE Value := TranslateEncoding (ConvertWs (Value, FALSE)); + END; + END; +END; + + +PROCEDURE TXmlParser.AnalyzeCData; + // Analyze CDATA Sections +BEGIN + CurPartType := ptCData; + CurFinal := StrPos (CurStart, CDEnd); + IF CurFinal = NIL THEN BEGIN + CurFinal := StrEnd (CurStart)-1; + CurContent := TranslateEncoding (StrPas (CurStart+Length (CDStart))); + END + ELSE BEGIN + SetStringSF (CurContent, CurStart+Length (CDStart), CurFinal-1); + INC (CurFinal, Length (CDEnd)-1); + CurContent := TranslateEncoding (CurContent); + END; +END; + + +PROCEDURE TXmlParser.AnalyzeText (VAR IsDone : BOOLEAN); + (* Analyzes Text Content between Tags. CurFinal will point to the last content character. + Content ends at a '<' character or at the end of the document. + Entity References and Character Entity references are resolved. + If PackSpaces is TRUE, contiguous Whitespace Characters will be compressed to + one Space #x20 character, Whitespace at the beginning and end of content will + be trimmed off and content which is or becomes empty is not returned to + the application (in this case, "IsDone" is set to FALSE which causes the + Scan method to proceed directly to the next part. *) + + PROCEDURE ProcessEntity; + (* Is called if there is an ampsersand '&' character found in the document. + IN "CurFinal" points to the ampersand + OUT "CurFinal" points to the first character after the semi-colon ';' *) + VAR + P : PChar; + Name : STRING; + EntityDef : TEntityDef; + ExternalEntity : TXmlParser; + BEGIN + P := StrScan (CurFinal , ';'); + IF P <> NIL THEN BEGIN + SetStringSF (Name, CurFinal+1, P-1); + + // Is it a Character Entity? + IF (CurFinal+1)^ = '#' THEN BEGIN + IF UpCase ((CurFinal+2)^) = 'X' // !!! Can't use "CHR" for Unicode characters > 255: + THEN CurContent := CurContent + CHR (StrToIntDef ('$'+Copy (Name, 3, MaxInt), 32)) + ELSE CurContent := CurContent + CHR (StrToIntDef (Copy (Name, 2, MaxInt), 32)); + CurFinal := P+1; + EXIT; + END + + // Is it a Predefined Entity? + ELSE IF Name = 'lt' THEN BEGIN CurContent := CurContent + '<'; CurFinal := P+1; EXIT; END + ELSE IF Name = 'gt' THEN BEGIN CurContent := CurContent + '>'; CurFinal := P+1; EXIT; END + ELSE IF Name = 'amp' THEN BEGIN CurContent := CurContent + '&'; CurFinal := P+1; EXIT; END + ELSE IF Name = 'apos' THEN BEGIN CurContent := CurContent + ''''; CurFinal := P+1; EXIT; END + ELSE IF Name = 'quot' THEN BEGIN CurContent := CurContent + '"'; CurFinal := P+1; EXIT; END; + + // Replace with Entity from DTD + EntityDef := TEntityDef (Entities.Node (Name)); + IF EntityDef <> NIL THEN BEGIN + IF EntityDef.Value <> '' THEN BEGIN + EntityStack.Push (P+1); + CurFinal := PChar (EntityDef.Value); + END + ELSE BEGIN + ExternalEntity := LoadExternalEntity (EntityDef.SystemId, EntityDef.PublicId, EntityDef.NotationName); + EntityStack.Push (ExternalEntity, P+1); + CurFinal := ExternalEntity.DocBuffer; + END; + END + ELSE BEGIN + CurContent := CurContent + Name; + CurFinal := P+1; + END; + END + ELSE BEGIN + INC (CurFinal); + END; + END; + +VAR + C : INTEGER; +BEGIN + CurFinal := CurStart; + CurPartType := ptContent; + CurContent := ''; + C := 0; + REPEAT + CASE CurFinal^ OF + '&' : BEGIN + CurContent := CurContent + TranslateEncoding (StrLPas (CurFinal-C, C)); + C := 0; + ProcessEntity; + CONTINUE; + END; + #0 : BEGIN + IF EntityStack.Count = 0 THEN + BREAK + ELSE BEGIN + CurContent := CurContent + TranslateEncoding (StrLPas (CurFinal-C, C)); + C := 0; + CurFinal := EntityStack.Pop; + CONTINUE; + END; + END; + '<' : BREAK; + ELSE INC (C); + END; + INC (CurFinal); + UNTIL FALSE; + CurContent := CurContent + TranslateEncoding (StrLPas (CurFinal-C, C)); + DEC (CurFinal); + + IF FNormalize THEN BEGIN + CurContent := ConvertWs (TrimWs (CurContent), TRUE); + IsDone := CurContent <> ''; // IsDone will only get FALSE if PackSpaces is TRUE + END; +END; + + +PROCEDURE TXmlParser.AnalyzeElementDecl (Start : PChar; VAR Final : PChar); + (* Parse <!ELEMENT declaration starting at "Start" + Final must point to the terminating '>' character + XmlSpec 3.2: + elementdecl ::= '<!ELEMENT' S Name S contentspec S? '>' + contentspec ::= 'EMPTY' | 'ANY' | Mixed | children + Mixed ::= '(' S? '#PCDATA' (S? '|' S? Name)* S? ')*' | + '(' S? '#PCDATA' S? ')' + children ::= (choice | seq) ('?' | '*' | '+')? + choice ::= '(' S? cp ( S? '|' S? cp )* S? ')' + cp ::= (Name | choice | seq) ('?' | '*' | '+')? + seq ::= '(' S? cp ( S? ',' S? cp )* S? ')' + + More simply: + contentspec ::= EMPTY + ANY + '(#PCDATA)' + '(#PCDATA | A | B)*' + '(A, B, C)' + '(A | B | C)' + '(A?, B*, C+), + '(A, (B | C | D)* )' *) +VAR + Element : TElemDef; + Elem2 : TElemDef; + F : PChar; + DER : TDtdElementRec; +BEGIN + Element := TElemDef.Create; + Final := Start + 9; + DER.Start := Start; + REPEAT + IF Final^ = '>' THEN BREAK; + IF (Final^ IN CNameStart) AND (Element.Name = '') THEN BEGIN + ExtractName (Final, CWhitespace, F); + SetStringSF (Element.Name, Final, F); + Final := F; + F := StrScan (Final+1, '>'); + IF F = NIL THEN BEGIN + Element.Definition := STRING (Final); + Final := StrEnd (Final); + BREAK; + END + ELSE BEGIN + SetStringSF (Element.Definition, Final+1, F-1); + Final := F; + BREAK; + END; + END; + INC (Final); + UNTIL FALSE; + Element.Definition := DelChars (Element.Definition, CWhitespace); + ReplaceParameterEntities (Element.Definition); + IF Element.Definition = 'EMPTY' THEN Element.ElemType := etEmpty + ELSE IF Element.Definition = 'ANY' THEN Element.ElemType := etAny + ELSE IF Copy (Element.Definition, 1, 8) = '(#PCDATA' THEN Element.ElemType := etMixed + ELSE IF Copy (Element.Definition, 1, 1) = '(' THEN Element.ElemType := etChildren + ELSE Element.ElemType := etAny; + + Elem2 := Elements.Node (Element.Name); + IF Elem2 <> NIL THEN + Elements.Delete (Elements.IndexOf (Elem2)); + Elements.Add (Element); + Final := StrScanE (Final, '>'); + DER.ElementType := deElement; + DER.ElemDef := Element; + DER.Final := Final; + DtdElementFound (DER); +END; + + +PROCEDURE TXmlParser.AnalyzeAttListDecl (Start : PChar; VAR Final : PChar); + (* Parse <!ATTLIST declaration starting at "Start" + Final must point to the terminating '>' character + XmlSpec 3.3: + AttlistDecl ::= '<!ATTLIST' S Name AttDef* S? '>' + AttDef ::= S Name S AttType S DefaultDecl + AttType ::= StringType | TokenizedType | EnumeratedType + StringType ::= 'CDATA' + TokenizedType ::= 'ID' | 'IDREF' | 'IDREFS' | 'ENTITY' | 'ENTITIES' | 'NMTOKEN' | 'NMTOKENS' + EnumeratedType ::= NotationType | Enumeration + NotationType ::= 'NOTATION' S '(' S? Name (S? '|' S? Name)* S? ')' + Enumeration ::= '(' S? Nmtoken (S? '|' S? Nmtoken)* S? ')' + DefaultDecl ::= '#REQUIRED' | '#IMPLIED' | (('#FIXED' S)? AttValue) + AttValue ::= '"' ([^<&"] | Reference)* '"' | "'" ([^<&'] | Reference)* "'" + Examples: + <!ATTLIST address + A1 CDATA "Default" + A2 ID #REQUIRED + A3 IDREF #IMPLIED + A4 IDREFS #IMPLIED + A5 ENTITY #FIXED "&at;ü" + A6 ENTITIES #REQUIRED + A7 NOTATION (WMF | DXF) "WMF" + A8 (A | B | C) #REQUIRED> *) +TYPE + TPhase = (phElementName, phName, phType, phNotationContent, phDefault); +VAR + Phase : TPhase; + F : PChar; + ElementName : STRING; + ElemDef : TElemDef; + AttrDef : TAttrDef; + AttrDef2 : TAttrDef; + Strg : STRING; + DER : TDtdElementRec; +BEGIN + Final := Start + 9; // The character after <!ATTLIST + Phase := phElementName; + DER.Start := Start; + AttrDef := NIL; + ElemDef := NIL; + REPEAT + IF NOT (Final^ IN CWhitespace) THEN + CASE Final^ OF + '%' : BEGIN + PushPE (Final); + CONTINUE; + END; + #0 : IF EntityStack.Count = 0 THEN + BREAK + ELSE BEGIN + Final := EntityStack.Pop; + CONTINUE; + END; + '>' : BREAK; + ELSE CASE Phase OF + phElementName : BEGIN + ExtractName (Final, CWhitespace + CQuoteChar + ['#'], F); + SetStringSF (ElementName, Final, F); + Final := F; + ElemDef := Elements.Node (ElementName); + IF ElemDef = NIL THEN BEGIN + ElemDef := TElemDef.Create; + ElemDef.Name := ElementName; + ElemDef.Definition := 'ANY'; + ElemDef.ElemType := etAny; + Elements.Add (ElemDef); + END; + Phase := phName; + END; + phName : BEGIN + AttrDef := TAttrDef.Create; + ExtractName (Final, CWhitespace + CQuoteChar + ['#'], F); + SetStringSF (AttrDef.Name, Final, F); + Final := F; + AttrDef2 := TAttrDef (ElemDef.Node (AttrDef.Name)); + IF AttrDef2 <> NIL THEN + ElemDef.Delete (ElemDef.IndexOf (AttrDef2)); + ElemDef.Add (AttrDef); + Phase := phType; + END; + phType : BEGIN + IF Final^ = '(' THEN BEGIN + F := StrScan (Final+1, ')'); + IF F <> NIL + THEN SetStringSF (AttrDef.TypeDef, Final+1, F-1) + ELSE AttrDef.TypeDef := STRING (Final+1); + AttrDef.TypeDef := DelChars (AttrDef.TypeDef, CWhitespace); + AttrDef.AttrType := atEnumeration; + ReplaceParameterEntities (AttrDef.TypeDef); + ReplaceCharacterEntities (AttrDef.TypeDef); + Phase := phDefault; + END + ELSE IF StrLComp (Final, 'NOTATION', 8) = 0 THEN BEGIN + INC (Final, 8); + AttrDef.AttrType := atNotation; + Phase := phNotationContent; + END + ELSE BEGIN + ExtractName (Final, CWhitespace+CQuoteChar+['#'], F); + SetStringSF (AttrDef.TypeDef, Final, F); + IF AttrDef.TypeDef = 'CDATA' THEN AttrDef.AttrType := atCData + ELSE IF AttrDef.TypeDef = 'ID' THEN AttrDef.AttrType := atId + ELSE IF AttrDef.TypeDef = 'IDREF' THEN AttrDef.AttrType := atIdRef + ELSE IF AttrDef.TypeDef = 'IDREFS' THEN AttrDef.AttrType := atIdRefs + ELSE IF AttrDef.TypeDef = 'ENTITY' THEN AttrDef.AttrType := atEntity + ELSE IF AttrDef.TypeDef = 'ENTITIES' THEN AttrDef.AttrType := atEntities + ELSE IF AttrDef.TypeDef = 'NMTOKEN' THEN AttrDef.AttrType := atNmToken + ELSE IF AttrDef.TypeDef = 'NMTOKENS' THEN AttrDef.AttrType := atNmTokens; + Phase := phDefault; + END + END; + phNotationContent : BEGIN + F := StrScan (Final, ')'); + IF F <> NIL THEN + SetStringSF (AttrDef.Notations, Final+1, F-1) + ELSE BEGIN + AttrDef.Notations := STRING (Final+1); + Final := StrEnd (Final); + END; + ReplaceParameterEntities (AttrDef.Notations); + AttrDef.Notations := DelChars (AttrDef.Notations, CWhitespace); + Phase := phDefault; + END; + phDefault : BEGIN + IF Final^ = '#' THEN BEGIN + ExtractName (Final, CWhiteSpace + CQuoteChar, F); + SetStringSF (Strg, Final, F); + Final := F; + ReplaceParameterEntities (Strg); + IF Strg = '#REQUIRED' THEN BEGIN AttrDef.DefaultType := adRequired; Phase := phName; END + ELSE IF Strg = '#IMPLIED' THEN BEGIN AttrDef.DefaultType := adImplied; Phase := phName; END + ELSE IF Strg = '#FIXED' THEN AttrDef.DefaultType := adFixed; + END + ELSE IF (Final^ IN CQuoteChar) THEN BEGIN + ExtractQuote (Final, AttrDef.Value, Final); + ReplaceParameterEntities (AttrDef.Value); + ReplaceCharacterEntities (AttrDef.Value); + Phase := phName; + END; + IF Phase = phName THEN BEGIN + AttrDef := NIL; + END; + END; + + END; + END; + INC (Final); + UNTIL FALSE; + + Final := StrScan (Final, '>'); + + DER.ElementType := deAttList; + DER.ElemDef := ElemDef; + DER.Final := Final; + DtdElementFound (DER); +END; + + +PROCEDURE TXmlParser.AnalyzeEntityDecl (Start : PChar; VAR Final : PChar); + (* Parse <!ENTITY declaration starting at "Start" + Final must point to the terminating '>' character + XmlSpec 4.2: + EntityDecl ::= '<!ENTITY' S Name S EntityDef S? '>' | + '<!ENTITY' S '%' S Name S PEDef S? '>' + EntityDef ::= EntityValue | (ExternalID NDataDecl?) + PEDef ::= EntityValue | ExternalID + NDataDecl ::= S 'NDATA' S Name + EntityValue ::= '"' ([^%&"] | PEReference | EntityRef | CharRef)* '"' | + "'" ([^%&'] | PEReference | EntityRef | CharRef)* "'" + PEReference ::= '%' Name ';' + + Examples + <!ENTITY test1 "Stefan Heymann"> <!-- Internal, general, parsed --> + <!ENTITY test2 SYSTEM "ent2.xml"> <!-- External, general, parsed --> + <!ENTITY test2 SYSTEM "ent3.gif" NDATA gif> <!-- External, general, unparsed --> + <!ENTITY % test3 "<!ELEMENT q ANY>"> <!-- Internal, parameter --> + <!ENTITY % test6 SYSTEM "ent6.xml"> <!-- External, parameter --> + <!ENTITY test4 "&test1; ist lieb"> <!-- IGP, Replacement text <> literal value --> + <!ENTITY test5 "<p>Dies ist ein Test-Absatz</p>"> <!-- IGP, See XmlSpec 2.4 --> + *) +TYPE + TPhase = (phName, phContent, phNData, phNotationName, phFinalGT); +VAR + Phase : TPhase; + IsParamEntity : BOOLEAN; + F : PChar; + ExternalID : TExternalID; + EntityDef : TEntityDef; + EntityDef2 : TEntityDef; + DER : TDtdElementRec; +BEGIN + Final := Start + 8; // First char after <!ENTITY + DER.Start := Start; + Phase := phName; + IsParamEntity := FALSE; + EntityDef := TEntityDef.Create; + REPEAT + IF NOT (Final^ IN CWhitespace) THEN + CASE Final^ OF + '%' : IsParamEntity := TRUE; + '>' : BREAK; + ELSE CASE Phase OF + phName : IF Final^ IN CNameStart THEN BEGIN + ExtractName (Final, CWhitespace + CQuoteChar, F); + SetStringSF (EntityDef.Name, Final, F); + Final := F; + Phase := phContent; + END; + phContent : IF Final^ IN CQuoteChar THEN BEGIN + ExtractQuote (Final, EntityDef.Value, Final); + Phase := phFinalGT; + END + ELSE IF (StrLComp (Final, 'SYSTEM', 6) = 0) OR + (StrLComp (Final, 'PUBLIC', 6) = 0) THEN BEGIN + ExternalID := TExternalID.Create (Final); + EntityDef.SystemId := ExternalID.SystemId; + EntityDef.PublicId := ExternalID.PublicId; + Final := ExternalID.Final; + Phase := phNData; + ExternalID.Free; + END; + phNData : IF StrLComp (Final, 'NDATA', 5) = 0 THEN BEGIN + INC (Final, 4); + Phase := phNotationName; + END; + phNotationName : IF Final^ IN CNameStart THEN BEGIN + ExtractName (Final, CWhitespace + ['>'], F); + SetStringSF (EntityDef.NotationName, Final, F); + Final := F; + Phase := phFinalGT; + END; + phFinalGT : ; // -!- There is an error in the document if this branch is called + END; + END; + INC (Final); + UNTIL FALSE; + IF IsParamEntity THEN BEGIN + EntityDef2 := TEntityDef (ParEntities.Node (EntityDef.Name)); + IF EntityDef2 <> NIL THEN + ParEntities.Delete (ParEntities.IndexOf (EntityDef2)); + ParEntities.Add (EntityDef); + ReplaceCharacterEntities (EntityDef.Value); + END + ELSE BEGIN + EntityDef2 := TEntityDef (Entities.Node (EntityDef.Name)); + IF EntityDef2 <> NIL THEN + Entities.Delete (Entities.IndexOf (EntityDef2)); + Entities.Add (EntityDef); + ReplaceParameterEntities (EntityDef.Value); // Create replacement texts (see XmlSpec 4.5) + ReplaceCharacterEntities (EntityDef.Value); + END; + Final := StrScanE (Final, '>'); + + DER.ElementType := deEntity; + DER.EntityDef := EntityDef; + DER.Final := Final; + DtdElementFound (DER); +END; + + +PROCEDURE TXmlParser.AnalyzeNotationDecl (Start : PChar; VAR Final : PChar); + // Parse <!NOTATION declaration starting at "Start" + // Final must point to the terminating '>' character + // XmlSpec 4.7: NotationDecl ::= '<!NOTATION' S Name S (ExternalID | PublicID) S? '>' +TYPE + TPhase = (phName, phExtId, phEnd); +VAR + ExternalID : TExternalID; + Phase : TPhase; + F : PChar; + NotationDef : TNotationDef; + DER : TDtdElementRec; +BEGIN + Final := Start + 10; // Character after <!NOTATION + DER.Start := Start; + Phase := phName; + NotationDef := TNotationDef.Create; + REPEAT + IF NOT (Final^ IN CWhitespace) THEN + CASE Final^ OF + '>', + #0 : BREAK; + ELSE CASE Phase OF + phName : BEGIN + ExtractName (Final, CWhitespace + ['>'], F); + SetStringSF (NotationDef.Name, Final, F); + Final := F; + Phase := phExtId; + END; + phExtId : BEGIN + ExternalID := TExternalID.Create (Final); + NotationDef.Value := ExternalID.SystemId; + NotationDef.PublicId := ExternalID.PublicId; + Final := ExternalId.Final; + ExternalId.Free; + Phase := phEnd; + END; + phEnd : ; // -!- There is an error in the document if this branch is called + END; + END; + INC (Final); + UNTIL FALSE; + Notations.Add (NotationDef); + Final := StrScanE (Final, '>'); + + DER.ElementType := deNotation; + DER.NotationDef := NotationDef; + DER.Final := Final; + DtdElementFound (DER); +END; + + +PROCEDURE TXmlParser.PushPE (VAR Start : PChar); + (* If there is a parameter entity reference found in the data stream, + the current position will be pushed to the entity stack. + Start: IN Pointer to the '%' character starting the PE reference + OUT Pointer to first character of PE replacement text *) +VAR + P : PChar; + EntityDef : TEntityDef; +BEGIN + P := StrScan (Start, ';'); + IF P <> NIL THEN BEGIN + EntityDef := TEntityDef (ParEntities.Node (StrSFPas (Start+1, P-1))); + IF EntityDef <> NIL THEN BEGIN + EntityStack.Push (P+1); + Start := PChar (EntityDef.Value); + END + ELSE + Start := P+1; + END; +END; + + +PROCEDURE TXmlParser.ReplaceCharacterEntities (VAR Str : STRING); + // Replaces all Character Entity References in the String +VAR + Start : INTEGER; + PAmp : PChar; + PSemi : PChar; + PosAmp : INTEGER; + Len : INTEGER; // Length of Entity Reference +BEGIN + IF Str = '' THEN EXIT; + Start := 1; + REPEAT + PAmp := StrPos (PChar (Str) + Start-1, '&#'); + IF PAmp = NIL THEN BREAK; + PSemi := StrScan (PAmp+2, ';'); + IF PSemi = NIL THEN BREAK; + PosAmp := PAmp - PChar (Str) + 1; + Len := PSemi-PAmp+1; + IF CompareText (Str [PosAmp+2], 'x') = 0 // !!! Can't use "CHR" for Unicode characters > 255 + THEN Str [PosAmp] := CHR (StrToIntDef ('$'+Copy (Str, PosAmp+3, Len-4), 0)) + ELSE Str [PosAmp] := CHR (StrToIntDef (Copy (Str, PosAmp+2, Len-3), 32)); + Delete (Str, PosAmp+1, Len-1); + Start := PosAmp + 1; + UNTIL FALSE; +END; + + +PROCEDURE TXmlParser.ReplaceParameterEntities (VAR Str : STRING); + // Recursively replaces all Parameter Entity References in the String + PROCEDURE ReplaceEntities (VAR Str : STRING); + VAR + Start : INTEGER; + PAmp : PChar; + PSemi : PChar; + PosAmp : INTEGER; + Len : INTEGER; + Entity : TEntityDef; + Repl : STRING; // Replacement + BEGIN + IF Str = '' THEN EXIT; + Start := 1; + REPEAT + PAmp := StrPos (PChar (Str)+Start-1, '%'); + IF PAmp = NIL THEN BREAK; + PSemi := StrScan (PAmp+2, ';'); + IF PSemi = NIL THEN BREAK; + PosAmp := PAmp - PChar (Str) + 1; + Len := PSemi-PAmp+1; + Entity := TEntityDef (ParEntities.Node (Copy (Str, PosAmp+1, Len-2))); + IF Entity <> NIL THEN BEGIN + Repl := Entity.Value; + ReplaceEntities (Repl); // Recursion + END + ELSE + Repl := Copy (Str, PosAmp, Len); + Delete (Str, PosAmp, Len); + Insert (Repl, Str, PosAmp); + Start := PosAmp + Length (Repl); + UNTIL FALSE; + END; +BEGIN + ReplaceEntities (Str); +END; + + +PROCEDURE TXmlParser.ReplaceGeneralEntities (VAR Str : STRING); + // Recursively replaces General Entity References in the String + PROCEDURE ReplaceEntities (VAR Str : STRING); + VAR + Start : INTEGER; + PAmp : PChar; + PSemi : PChar; + PosAmp : INTEGER; + Len : INTEGER; + EntityDef : TEntityDef; + EntName : STRING; + Repl : STRING; // Replacement + ExternalEntity : TXmlParser; + BEGIN + IF Str = '' THEN EXIT; + Start := 1; + REPEAT + PAmp := StrPos (PChar (Str)+Start-1, '&'); + IF PAmp = NIL THEN BREAK; + PSemi := StrScan (PAmp+2, ';'); + IF PSemi = NIL THEN BREAK; + PosAmp := PAmp - PChar (Str) + 1; + Len := PSemi-PAmp+1; + EntName := Copy (Str, PosAmp+1, Len-2); + IF EntName = 'lt' THEN Repl := '<' + ELSE IF EntName = 'gt' THEN Repl := '>' + ELSE IF EntName = 'amp' THEN Repl := '&' + ELSE IF EntName = 'apos' THEN Repl := '''' + ELSE IF EntName = 'quot' THEN Repl := '"' + ELSE BEGIN + EntityDef := TEntityDef (Entities.Node (EntName)); + IF EntityDef <> NIL THEN BEGIN + IF EntityDef.Value <> '' THEN // Internal Entity + Repl := EntityDef.Value + ELSE BEGIN // External Entity + ExternalEntity := LoadExternalEntity (EntityDef.SystemId, EntityDef.PublicId, EntityDef.NotationName); + Repl := StrPas (ExternalEntity.DocBuffer); // !!! What if it contains a Text Declaration? + ExternalEntity.Free; + END; + ReplaceEntities (Repl); // Recursion + END + ELSE + Repl := Copy (Str, PosAmp, Len); + END; + Delete (Str, PosAmp, Len); + Insert (Repl, Str, PosAmp); + Start := PosAmp + Length (Repl); + UNTIL FALSE; + END; +BEGIN + ReplaceEntities (Str); +END; + + +FUNCTION TXmlParser.LoadExternalEntity (SystemId, PublicId, Notation : STRING) : TXmlParser; + // This will be called whenever there is a Parsed External Entity or + // the DTD External Subset to be parsed. + // It has to create a TXmlParser instance and load the desired Entity. + // This instance of LoadExternalEntity assumes that "SystemId" is a valid + // file name (relative to the Document source) and loads this file using + // the LoadFromFile method. +VAR + Filename : STRING; +BEGIN + // --- Convert System ID to complete filename + Filename := StringReplace (SystemId, '/', '\', [rfReplaceAll]); + IF Copy (FSource, 1, 1) <> '<' THEN + IF (Copy (Filename, 1, 2) = '\\') OR (Copy (Filename, 2, 1) = ':') THEN + // Already has an absolute Path + ELSE BEGIN + Filename := ExtractFilePath (FSource) + Filename; + END; + + // --- Load the File + Result := TXmlParser.Create; + Result.LoadFromFile (Filename); +END; + + +FUNCTION TXmlParser.TranslateEncoding (CONST Source : STRING) : STRING; + // The member variable "CurEncoding" always holds the name of the current + // encoding, e.g. 'UTF-8' or 'ISO-8859-1'. + // This virtual method "TranslateEncoding" is responsible for translating + // the content passed in the "Source" parameter to the Encoding which + // is expected by the application. + // This instance of "TranlateEncoding" assumes that the Application expects + // Windows ANSI (Win1252) strings. It is able to transform UTF-8 or ISO-8859-1 + // encodings. + // If you want your application to understand or create other encodings, you + // override this function. +BEGIN + IF CurEncoding = 'UTF-8' + THEN Result := Utf8ToAnsi (Source) + ELSE Result := Source; +END; + + +PROCEDURE TXmlParser.DtdElementFound (DtdElementRec : TDtdElementRec); + // This method is called for every element which is found in the DTD + // declaration. The variant record TDtdElementRec is passed which + // holds informations about the element. + // You can override this function to handle DTD declarations. + // Note that when you parse the same Document instance a second time, + // the DTD will not get parsed again. +BEGIN +END; + + +FUNCTION TXmlParser.GetDocBuffer: PChar; + // Returns FBuffer or a pointer to a NUL char if Buffer is empty +BEGIN + IF FBuffer = NIL + THEN Result := #0 + ELSE Result := FBuffer; +END; + + +(*$IFNDEF HAS_CONTNRS_UNIT +=============================================================================================== +TObjectList +=============================================================================================== +*) + +DESTRUCTOR TObjectList.Destroy; +BEGIN + Clear; + SetCapacity(0); + INHERITED Destroy; +END; + + +PROCEDURE TObjectList.Delete (Index : INTEGER); +BEGIN + IF (Index < 0) OR (Index >= Count) THEN EXIT; + TObject (Items [Index]).Free; + INHERITED Delete (Index); +END; + + +PROCEDURE TObjectList.Clear; +BEGIN + WHILE Count > 0 DO + Delete (Count-1); +END; + +(*$ENDIF *) + +(* +=============================================================================================== +TNvpNode +-------- +Node base class for the TNvpList +=============================================================================================== +*) + +CONSTRUCTOR TNvpNode.Create (TheName, TheValue : STRING); +BEGIN + INHERITED Create; + Name := TheName; + Value := TheValue; +END; + + +(* +=============================================================================================== +TNvpList +-------- +A generic List of Name-Value Pairs, based on the TObjectList introduced in Delphi 5 +=============================================================================================== +*) + +PROCEDURE TNvpList.Add (Node : TNvpNode); +VAR + I : INTEGER; +BEGIN + FOR I := Count-1 DOWNTO 0 DO + IF Node.Name > TNvpNode (Items [I]).Name THEN BEGIN + Insert (I+1, Node); + EXIT; + END; + Insert (0, Node); +END; + + + +FUNCTION TNvpList.Node (Name : STRING) : TNvpNode; + // Binary search for Node +VAR + L, H : INTEGER; // Low, High Limit + T, C : INTEGER; // Test Index, Comparison result + Last : INTEGER; // Last Test Index +BEGIN + IF Count=0 THEN BEGIN + Result := NIL; + EXIT; + END; + + L := 0; + H := Count; + Last := -1; + REPEAT + T := (L+H) DIV 2; + IF T=Last THEN BREAK; + Result := TNvpNode (Items [T]); + C := CompareStr (Result.Name, Name); + IF C = 0 THEN EXIT + ELSE IF C < 0 THEN L := T + ELSE H := T; + Last := T; + UNTIL FALSE; + Result := NIL; +END; + + +FUNCTION TNvpList.Node (Index : INTEGER) : TNvpNode; +BEGIN + IF (Index < 0) OR (Index >= Count) + THEN Result := NIL + ELSE Result := TNvpNode (Items [Index]); +END; + + +FUNCTION TNvpList.Value (Name : STRING) : STRING; +VAR + Nvp : TNvpNode; +BEGIN + Nvp := TNvpNode (Node (Name)); + IF Nvp <> NIL + THEN Result := Nvp.Value + ELSE Result := ''; +END; + + +FUNCTION TNvpList.Value (Index : INTEGER) : STRING; +BEGIN + IF (Index < 0) OR (Index >= Count) + THEN Result := '' + ELSE Result := TNvpNode (Items [Index]).Value; +END; + + +FUNCTION TNvpList.Name (Index : INTEGER) : STRING; +BEGIN + IF (Index < 0) OR (Index >= Count) + THEN Result := '' + ELSE Result := TNvpNode (Items [Index]).Name; +END; + + +(* +=============================================================================================== +TAttrList +List of Attributes. The "Analyze" method extracts the Attributes from the given Buffer. +Is used for extraction of Attributes in Start-Tags, Empty-Element Tags and the "pseudo" +attributes in XML Prologs, Text Declarations and PIs. +=============================================================================================== +*) + +PROCEDURE TAttrList.Analyze (Start : PChar; VAR Final : PChar); + // Analyze the Buffer for Attribute=Name pairs. + // Terminates when there is a character which is not IN CNameStart + // (e.g. '?>' or '>' or '/>') +TYPE + TPhase = (phName, phEq, phValue); +VAR + Phase : TPhase; + F : PChar; + Name : STRING; + Value : STRING; + Attr : TAttr; +BEGIN + Clear; + Phase := phName; + Final := Start; + REPEAT + IF (Final^ = #0) OR (Final^ = '>') THEN BREAK; + IF NOT (Final^ IN CWhitespace) THEN + CASE Phase OF + phName : BEGIN + IF NOT (Final^ IN CNameStart) THEN EXIT; + ExtractName (Final, CWhitespace + ['=', '/'], F); + SetStringSF (Name, Final, F); + Final := F; + Phase := phEq; + END; + phEq : BEGIN + IF Final^ = '=' THEN + Phase := phValue + END; + phValue : BEGIN + IF Final^ IN CQuoteChar THEN BEGIN + ExtractQuote (Final, Value, F); + Attr := TAttr.Create; + Attr.Name := Name; + Attr.Value := Value; + Attr.ValueType := vtNormal; + Add (Attr); + Final := F; + Phase := phName; + END; + END; + END; + INC (Final); + UNTIL FALSE; +END; + + +(* +=============================================================================================== +TElemList +List of TElemDef nodes. +=============================================================================================== +*) + +FUNCTION TElemList.Node (Name : STRING) : TElemDef; + // Binary search for the Node with the given Name +VAR + L, H : INTEGER; // Low, High Limit + T, C : INTEGER; // Test Index, Comparison result + Last : INTEGER; // Last Test Index +BEGIN + IF Count=0 THEN BEGIN + Result := NIL; + EXIT; + END; + + L := 0; + H := Count; + Last := -1; + REPEAT + T := (L+H) DIV 2; + IF T=Last THEN BREAK; + Result := TElemDef (Items [T]); + C := CompareStr (Result.Name, Name); + IF C = 0 THEN EXIT + ELSE IF C < 0 THEN L := T + ELSE H := T; + Last := T; + UNTIL FALSE; + Result := NIL; +END; + + +PROCEDURE TElemList.Add (Node : TElemDef); +VAR + I : INTEGER; +BEGIN + FOR I := Count-1 DOWNTO 0 DO + IF Node.Name > TElemDef (Items [I]).Name THEN BEGIN + Insert (I+1, Node); + EXIT; + END; + Insert (0, Node); +END; + + +(* +=============================================================================================== +TScannerXmlParser +A TXmlParser descendant for the TCustomXmlScanner component +=============================================================================================== +*) + +TYPE + TScannerXmlParser = CLASS (TXmlParser) + Scanner : TCustomXmlScanner; + CONSTRUCTOR Create (TheScanner : TCustomXmlScanner); + FUNCTION LoadExternalEntity (SystemId, PublicId, + Notation : STRING) : TXmlParser; OVERRIDE; + FUNCTION TranslateEncoding (CONST Source : STRING) : STRING; OVERRIDE; + PROCEDURE DtdElementFound (DtdElementRec : TDtdElementRec); OVERRIDE; + END; + +CONSTRUCTOR TScannerXmlParser.Create (TheScanner : TCustomXmlScanner); +BEGIN + INHERITED Create; + Scanner := TheScanner; +END; + + +FUNCTION TScannerXmlParser.LoadExternalEntity (SystemId, PublicId, Notation : STRING) : TXmlParser; +BEGIN + IF Assigned (Scanner.FOnLoadExternal) + THEN Scanner.FOnLoadExternal (Scanner, SystemId, PublicId, Notation, Result) + ELSE Result := INHERITED LoadExternalEntity (SystemId, PublicId, Notation); +END; + + +FUNCTION TScannerXmlParser.TranslateEncoding (CONST Source : STRING) : STRING; +BEGIN + IF Assigned (Scanner.FOnTranslateEncoding) + THEN Result := Scanner.FOnTranslateEncoding (Scanner, CurEncoding, Source) + ELSE Result := INHERITED TranslateEncoding (Source); +END; + + +PROCEDURE TScannerXmlParser.DtdElementFound (DtdElementRec : TDtdElementRec); +BEGIN + WITH DtdElementRec DO + CASE ElementType OF + deElement : Scanner.WhenElement (ElemDef); + deAttList : Scanner.WhenAttList (ElemDef); + deEntity : Scanner.WhenEntity (EntityDef); + deNotation : Scanner.WhenNotation (NotationDef); + dePI : Scanner.WhenPI (STRING (Target), STRING (Content), AttrList); + deComment : Scanner.WhenComment (StrSFPas (Start, Final)); + deError : Scanner.WhenDtdError (Pos); + END; +END; + + +(* +=============================================================================================== +TCustomXmlScanner +=============================================================================================== +*) + +CONSTRUCTOR TCustomXmlScanner.Create (AOwner: TComponent); +BEGIN + INHERITED; + FXmlParser := TScannerXmlParser.Create (Self); +END; + + +DESTRUCTOR TCustomXmlScanner.Destroy; +BEGIN + FXmlParser.Free; + INHERITED; +END; + + +PROCEDURE TCustomXmlScanner.LoadFromFile (Filename : TFilename); + // Load XML Document from file +BEGIN + FXmlParser.LoadFromFile (Filename); +END; + + +PROCEDURE TCustomXmlScanner.LoadFromBuffer (Buffer : PChar); + // Load XML Document from buffer +BEGIN + FXmlParser.LoadFromBuffer (Buffer); +END; + + +PROCEDURE TCustomXmlScanner.SetBuffer (Buffer : PChar); + // Refer to Buffer +BEGIN + FXmlParser.SetBuffer (Buffer); +END; + + +FUNCTION TCustomXmlScanner.GetFilename : TFilename; +BEGIN + Result := FXmlParser.Source; +END; + + +FUNCTION TCustomXmlScanner.GetNormalize : BOOLEAN; +BEGIN + Result := FXmlParser.Normalize; +END; + + +PROCEDURE TCustomXmlScanner.SetNormalize (Value : BOOLEAN); +BEGIN + FXmlParser.Normalize := Value; +END; + + +PROCEDURE TCustomXmlScanner.WhenXmlProlog(XmlVersion, Encoding: STRING; Standalone : BOOLEAN); + // Is called when the parser has parsed the <? xml ?> declaration of the prolog +BEGIN + IF Assigned (FOnXmlProlog) THEN FOnXmlProlog (Self, XmlVersion, Encoding, Standalone); +END; + + +PROCEDURE TCustomXmlScanner.WhenComment (Comment : STRING); + // Is called when the parser has parsed a <!-- comment --> +BEGIN + IF Assigned (FOnComment) THEN FOnComment (Self, Comment); +END; + + +PROCEDURE TCustomXmlScanner.WhenPI (Target, Content: STRING; Attributes : TAttrList); + // Is called when the parser has parsed a <?processing instruction ?> +BEGIN + IF Assigned (FOnPI) THEN FOnPI (Self, Target, Content, Attributes); +END; + + +PROCEDURE TCustomXmlScanner.WhenDtdRead (RootElementName : STRING); + // Is called when the parser has completely parsed the DTD +BEGIN + IF Assigned (FOnDtdRead) THEN FOnDtdRead (Self, RootElementName); +END; + + +PROCEDURE TCustomXmlScanner.WhenStartTag (TagName : STRING; Attributes : TAttrList); + // Is called when the parser has parsed a start tag like <p> +BEGIN + IF Assigned (FOnStartTag) THEN FOnStartTag (Self, TagName, Attributes); +END; + + +PROCEDURE TCustomXmlScanner.WhenEmptyTag (TagName : STRING; Attributes : TAttrList); + // Is called when the parser has parsed an Empty Element Tag like <br/> +BEGIN + IF Assigned (FOnEmptyTag) THEN FOnEmptyTag (Self, TagName, Attributes); +END; + + +PROCEDURE TCustomXmlScanner.WhenEndTag (TagName : STRING); + // Is called when the parser has parsed an End Tag like </p> +BEGIN + IF Assigned (FOnEndTag) THEN FOnEndTag (Self, TagName); +END; + + +PROCEDURE TCustomXmlScanner.WhenContent (Content : STRING); + // Is called when the parser has parsed an element's text content +BEGIN + IF Assigned (FOnContent) THEN FOnContent (Self, Content); +END; + + +PROCEDURE TCustomXmlScanner.WhenCData (Content : STRING); + // Is called when the parser has parsed a CDATA section +BEGIN + IF Assigned (FOnCData) THEN FOnCData (Self, Content); +END; + + +PROCEDURE TCustomXmlScanner.WhenElement (ElemDef : TElemDef); + // Is called when the parser has parsed an <!ELEMENT> definition + // inside the DTD +BEGIN + IF Assigned (FOnElement) THEN FOnElement (Self, ElemDef); +END; + + +PROCEDURE TCustomXmlScanner.WhenAttList (ElemDef : TElemDef); + // Is called when the parser has parsed an <!ATTLIST> definition + // inside the DTD +BEGIN + IF Assigned (FOnAttList) THEN FOnAttList (Self, ElemDef); +END; + + +PROCEDURE TCustomXmlScanner.WhenEntity (EntityDef : TEntityDef); + // Is called when the parser has parsed an <!ENTITY> definition + // inside the DTD +BEGIN + IF Assigned (FOnEntity) THEN FOnEntity (Self, EntityDef); +END; + + +PROCEDURE TCustomXmlScanner.WhenNotation (NotationDef : TNotationDef); + // Is called when the parser has parsed a <!NOTATION> definition + // inside the DTD +BEGIN + IF Assigned (FOnNotation) THEN FOnNotation (Self, NotationDef); +END; + + +PROCEDURE TCustomXmlScanner.WhenDtdError (ErrorPos : PChar); + // Is called when the parser has found an Error in the DTD +BEGIN + IF Assigned (FOnDtdError) THEN FOnDtdError (Self, ErrorPos); +END; + + +PROCEDURE TCustomXmlScanner.Execute; + // Perform scanning + // Scanning is done synchronously, i.e. you can expect events to be triggered + // in the order of the XML data stream. Execute will finish when the whole XML + // document has been scanned or when the StopParser property has been set to TRUE. +BEGIN + FStopParser := FALSE; + FXmlParser.StartScan; + WHILE FXmlParser.Scan AND (NOT FStopParser) DO + CASE FXmlParser.CurPartType OF + ptNone : ; + ptXmlProlog : WhenXmlProlog (FXmlParser.XmlVersion, FXmlParser.Encoding, FXmlParser.Standalone); + ptComment : WhenComment (StrSFPas (FXmlParser.CurStart, FXmlParser.CurFinal)); + ptPI : WhenPI (FXmlParser.CurName, FXmlParser.CurContent, FXmlParser.CurAttr); + ptDtdc : WhenDtdRead (FXmlParser.RootName); + ptStartTag : WhenStartTag (FXmlParser.CurName, FXmlParser.CurAttr); + ptEmptyTag : WhenEmptyTag (FXmlParser.CurName, FXmlParser.CurAttr); + ptEndTag : WhenEndTag (FXmlParser.CurName); + ptContent : WhenContent (FXmlParser.CurContent); + ptCData : WhenCData (FXmlParser.CurContent); + END; +END; + + +END. diff --git a/src/lib/JEDI-SDL/SDL/Pas/logger.pas b/src/lib/JEDI-SDL/SDL/Pas/logger.pas new file mode 100644 index 00000000..ad9b24e6 --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/logger.pas @@ -0,0 +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. +
\ No newline at end of file diff --git a/src/lib/JEDI-SDL/SDL/Pas/moduleloader.pas b/src/lib/JEDI-SDL/SDL/Pas/moduleloader.pas new file mode 100644 index 00000000..796aa0ab --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/moduleloader.pas @@ -0,0 +1,320 @@ +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 MSWINDOWS} +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 FPC} + dl, + Types, + Baseunix, + Unix; +{$else} + Types, + Libc; +{$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/src/lib/JEDI-SDL/SDL/Pas/registryuserpreferences.pas b/src/lib/JEDI-SDL/SDL/Pas/registryuserpreferences.pas new file mode 100644 index 00000000..4a5d55f0 --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/registryuserpreferences.pas @@ -0,0 +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. diff --git a/src/lib/JEDI-SDL/SDL/Pas/sdl.pas b/src/lib/JEDI-SDL/SDL/Pas/sdl.pas new file mode 100644 index 00000000..736009c2 --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/sdl.pas @@ -0,0 +1,4332 @@ +unit sdl; +{ + $Id: sdl.pas,v 1.38 2008/01/26 10:09:32 savage Exp $ + +} +{******************************************************************************} +{ } +{ JEDI-SDL : Pascal units for 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.h } +{ SDL_main.h } +{ SDL_types.h } +{ SDL_rwops.h } +{ SDL_timer.h } +{ SDL_audio.h } +{ SDL_cdrom.h } +{ SDL_joystick.h } +{ SDL_mouse.h } +{ SDL_keyboard.h } +{ SDL_events.h } +{ SDL_video.h } +{ SDL_byteorder.h } +{ SDL_version.h } +{ SDL_active.h } +{ SDL_thread.h } +{ SDL_mutex .h } +{ SDL_getenv.h } +{ SDL_loadso.h } +{ } +{ The initial developer of this Pascal code was : } +{ Dominique Louis <Dominique@SavageSoftware.com.au> } +{ } +{ Portions created by Dominique Louis are } +{ Copyright (C) 2000 - 2004 Dominique Louis. } +{ } +{ } +{ Contributor(s) } +{ -------------- } +{ Tom Jones <tigertomjones@gmx.de> His Project inspired this conversion } +{ Matthias Thoma <ma.thoma@gmx.de> } +{ } +{ 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 } +{ ---------------- } +{ May 08 2001 - DL : Added Keyboard State Array ( See demos for how to } +{ use ) } +{ PKeyStateArr = ^TKeyStateArr; } +{ TKeyStateArr = array[0..65000] of UInt8; } +{ As most games will need it. } +{ } +{ April 02 2001 - DL : Added SDL_getenv.h definitions and tested version } +{ 1.2.0 compatability. } +{ } +{ March 13 2001 - MT : Added Linux compatibility. } +{ } +{ March 10 2001 - MT : Added externalsyms for DEFINES } +{ Changed the license header } +{ } +{ March 09 2001 - MT : Added Kylix Ifdefs/Deleted the uses mmsystem } +{ } +{ March 01 2001 - DL : Update conversion of version 1.1.8 } +{ } +{ July 22 2001 - DL : Added TUInt8Array and PUIntArray after suggestions } +{ from Matthias Thoma and Eric Grange. } +{ } +{ October 12 2001 - DL : Various changes as suggested by Matthias Thoma and } +{ David Acklam } +{ } +{ October 24 2001 - DL : Added FreePascal support as per suggestions from } +{ Dean Ellis. } +{ } +{ October 27 2001 - DL : Added SDL_BUTTON macro } +{ } +{ November 08 2001 - DL : Bug fix as pointed out by Puthoon. } +{ } +{ November 29 2001 - DL : Bug fix of SDL_SetGammaRamp as pointed out by Simon} +{ Rushton. } +{ } +{ November 30 2001 - DL : SDL_NOFRAME added as pointed out by Simon Rushton. } +{ } +{ December 11 2001 - DL : Added $WEAKPACKAGEUNIT ON to facilitate useage in } +{ Components } +{ } +{ January 05 2002 - DL : Added SDL_Swap32 function as suggested by Matthias } +{ Thoma and also made sure the _getenv from } +{ MSVCRT.DLL uses the right calling convention } +{ } +{ January 25 2002 - DL : Updated conversion of SDL_AddTimer & } +{ SDL_RemoveTimer as per suggestions from Matthias } +{ Thoma. } +{ } +{ January 27 2002 - DL : Commented out exported function putenv and getenv } +{ So that developers get used to using SDL_putenv } +{ SDL_getenv, as they are more portable } +{ } +{ March 05 2002 - DL : Added FreeAnNil procedure for Delphi 4 users. } +{ } +{ October 23 2002 - DL : Added Delphi 3 Define of Win32. } +{ If you intend to you Delphi 3... } +{ ( which is officially unsupported ) make sure you } +{ remove references to $EXTERNALSYM in this and other} +{ SDL files. } +{ } +{ November 29 2002 - DL : Fixed bug in Declaration of SDL_GetRGBA that was } +{ pointed out by Todd Lang } +{ } +{ April 03 2003 - DL : Added jedi-sdl.inc include file to support more } +{ Pascal compilers. Initial support is now included } +{ for GnuPascal, VirtualPascal, TMT and obviously } +{ continue support for Delphi Kylix and FreePascal. } +{ } +{ April 08 2003 - MK : Aka Mr Kroket - Added Better FPC support } +{ } +{ April 24 2003 - 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 } +{ } +{ April 30 2003 - DL : under instruction from David Mears AKA } +{ Jason Siletto, I have added FPC Linux support. } +{ This was compiled with fpc 1.1, so remember to set } +{ include file path. ie. -Fi/usr/share/fpcsrc/rtl/* } +{ } +{ + $Log: sdl.pas,v $ + Revision 1.38 2008/01/26 10:09:32 savage + Added SDL_BUTTON_X1 and SDL_BUTTON_X2 constants for extended mouse buttons. Now makes SDL v1.2.13 compliant. + + Revision 1.37 2007/12/20 22:36:56 savage + Added SKYOS support, thanks to Sebastian-Torsten Tillmann + + Revision 1.36 2007/12/05 22:52:04 savage + Better Mac OS X support for Frameworks. + + Revision 1.35 2007/12/02 22:41:13 savage + Change for Mac OS X to link to SDL Framework + + Revision 1.34 2007/08/26 23:50:53 savage + Jonas supplied another fix. + + Revision 1.33 2007/08/26 15:59:46 savage + Mac OS changes as suggested by Jonas Maebe + + Revision 1.32 2007/08/22 21:18:43 savage + Thanks to Dean for his MouseDelta patch. + + Revision 1.31 2007/05/29 21:30:48 savage + Changes as suggested by Almindor for 64bit compatibility. + + Revision 1.30 2007/05/29 19:31:03 savage + Fix to TSDL_Overlay structure - thanks David Pethes (aka imcold) + + Revision 1.29 2007/05/20 20:29:11 savage + Initial Changes to Handle 64 Bits + + Revision 1.26 2007/02/11 13:38:04 savage + Added Nintendo DS support - Thanks Dean. + + Revision 1.25 2006/12/02 00:12:52 savage + Updated to latest version + + Revision 1.24 2006/05/18 21:10:04 savage + Added 1.2.10 Changes + + Revision 1.23 2005/12/04 23:17:52 drellis + Added declaration of SInt8 and PSInt8 + + Revision 1.22 2005/05/24 21:59:03 savage + Re-arranged uses clause to work on Win32 and Linux, Thanks again Michalis. + + Revision 1.21 2005/05/22 18:42:31 savage + Changes as suggested by Michalis Kamburelis. Thanks again. + + Revision 1.20 2005/04/10 11:48:33 savage + Changes as suggested by Michalis, thanks. + + Revision 1.19 2005/01/05 01:47:06 savage + Changed LibName to reflect what MacOS X should have. ie libSDL*-1.2.0.dylib respectively. + + Revision 1.18 2005/01/04 23:14:41 savage + Changed LibName to reflect what most Linux distros will have. ie libSDL*-1.2.so.0 respectively. + + Revision 1.17 2005/01/03 18:40:59 savage + Updated Version number to reflect latest one + + Revision 1.16 2005/01/01 02:02:06 savage + Updated to v1.2.8 + + Revision 1.15 2004/12/24 18:57:11 savage + forgot to apply Michalis Kamburelis' patch to the implementation section. now fixed + + Revision 1.14 2004/12/23 23:42:18 savage + Applied Patches supplied by Michalis Kamburelis ( THANKS! ), for greater FreePascal compatability. + + Revision 1.13 2004/09/30 22:31:59 savage + Updated with slightly different header comments + + Revision 1.12 2004/09/12 21:52:58 savage + Slight changes to fix some issues with the sdl classes. + + Revision 1.11 2004/08/14 22:54:30 savage + Updated so that Library name defines are correctly defined for MacOS X. + + Revision 1.10 2004/07/20 23:57:33 savage + Thanks to Paul Toth for spotting an error in the SDL Audio Convertion structures. + In TSDL_AudioCVT the filters variable should point to and array of pointers and not what I had there previously. + + Revision 1.9 2004/07/03 22:07:22 savage + Added Bitwise Manipulation Functions for TSDL_VideoInfo struct. + + Revision 1.8 2004/05/10 14:10:03 savage + Initial MacOS X support. Fixed defines for MACOS ( Classic ) and DARWIN ( MacOS X ). + + Revision 1.7 2004/04/13 09:32:08 savage + Changed Shared object names back to just the .so extension to avoid conflicts on various Linux/Unix distros. Therefore developers will need to create Symbolic links to the actual Share Objects if necessary. + + Revision 1.6 2004/04/01 20:53:23 savage + Changed Linux Shared Object names so they reflect the Symbolic Links that are created when installing the RPMs from the SDL site. + + Revision 1.5 2004/02/22 15:32:10 savage + SDL_GetEnv Fix so it also works on FPC/Linux. Thanks to Rodrigo for pointing this out. + + Revision 1.4 2004/02/21 23:24:29 savage + SDL_GetEnv Fix so that it is not define twice for FPC. Thanks to Rene Hugentobler for pointing out this bug, + + Revision 1.3 2004/02/18 22:35:51 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. + + Revision 1.2 2004/02/17 21:37:12 savage + Tidying up of units + + Revision 1.1 2004/02/05 00:08:20 savage + Module 1.0 release + +} +{******************************************************************************} + +{$I jedi-sdl.inc} + +interface + +uses +{$IFDEF __GPC__} + system, + {$IFDEF WINDOWS} + wintypes, + {$ELSE} + {$ENDIF} + gpc; +{$ENDIF} + +{$IFDEF HAS_TYPES} + Types{$IFNDEF NDS},{$ELSE};{$ENDIF} +{$ENDIF} + +{$IFDEF WINDOWS} + Windows; +{$ENDIF} + +{$IFDEF UNIX} + {$IFDEF FPC} + {$IFNDEF SKYOS} + pthreads, + {$ENDIF} + baseunix, + {$IFNDEF GP2X} + {$IFNDEF DARWIN} + {$IFNDEF SKYOS} + unix, + {$ELSE} + unix; + {$ENDIF} + {$ELSE} + unix; + {$ENDIF} + {$ELSE} + unix; + {$ENDIF} + {$IFNDEF GP2X} + {$IFNDEF DARWIN} + {$IFNDEF SKYOS} + x, + xlib; + {$ENDIF} + {$ENDIF} + {$ENDIF} + {$ELSE} + Libc, + Xlib; + {$ENDIF} +{$ENDIF} + +{$IFDEF __MACH__} + GPCMacOSAll; +{$ENDIF} + +{$ifndef FPC} +type + PtrInt = LongInt; + PtrUInt = LongWord; +{$endif} + +const +{$IFDEF WINDOWS} + SDLLibName = 'SDL.dll'; +{$ENDIF} + +{$IFDEF UNIX} +{$IFDEF DARWIN} + SDLLibName = 'libSDL-1.2.0.dylib'; + {$linklib libSDL-1.2.0} +// {$linklib gcc} + {$linklib SDLmain} + {$linkframework Cocoa} + {$PASCALMAINNAME SDL_main} +{$ELSE} + {$IFDEF FPC} + SDLLibName = 'libSDL.so'; + {$ELSE} + SDLLibName = 'libSDL-1.2.so.0'; + {$ENDIF} +{$ENDIF} +{$ENDIF} + +{$IFDEF MACOS} + SDLLibName = 'SDL'; + {$linklib libSDL} +{$ENDIF} + +{$IFDEF NDS} + SDLLibName = 'libSDL.a'; + {$linklib libSDL.a} + {$linklib libnds9.a} + {$linklib libc.a} + {$linklib libgcc.a} + {$linklib libsysbase.a} +{$ENDIF} + + // SDL_verion.h constants + // Printable format: "%d.%d.%d", MAJOR, MINOR, PATCHLEVEL + SDL_MAJOR_VERSION = 1; +{$EXTERNALSYM SDL_MAJOR_VERSION} + SDL_MINOR_VERSION = 2; +{$EXTERNALSYM SDL_MINOR_VERSION} + SDL_PATCHLEVEL = 13; +{$EXTERNALSYM SDL_PATCHLEVEL} + + // SDL.h constants + SDL_INIT_TIMER = $00000001; +{$EXTERNALSYM SDL_INIT_TIMER} + SDL_INIT_AUDIO = $00000010; +{$EXTERNALSYM SDL_INIT_AUDIO} + SDL_INIT_VIDEO = $00000020; +{$EXTERNALSYM SDL_INIT_VIDEO} + SDL_INIT_CDROM = $00000100; +{$EXTERNALSYM SDL_INIT_CDROM} + SDL_INIT_JOYSTICK = $00000200; +{$EXTERNALSYM SDL_INIT_JOYSTICK} + SDL_INIT_NOPARACHUTE = $00100000; // Don't catch fatal signals +{$EXTERNALSYM SDL_INIT_NOPARACHUTE} + SDL_INIT_EVENTTHREAD = $01000000; // Not supported on all OS's +{$EXTERNALSYM SDL_INIT_EVENTTHREAD} + SDL_INIT_EVERYTHING = $0000FFFF; +{$EXTERNALSYM SDL_INIT_EVERYTHING} + + // SDL_error.h constants + ERR_MAX_STRLEN = 128; +{$EXTERNALSYM ERR_MAX_STRLEN} + ERR_MAX_ARGS = 5; +{$EXTERNALSYM ERR_MAX_ARGS} + + // SDL_types.h constants + SDL_PRESSED = $01; +{$EXTERNALSYM SDL_PRESSED} + SDL_RELEASED = $00; +{$EXTERNALSYM SDL_RELEASED} + + // SDL_timer.h constants + // This is the OS scheduler timeslice, in milliseconds + SDL_TIMESLICE = 10; +{$EXTERNALSYM SDL_TIMESLICE} + // This is the maximum resolution of the SDL timer on all platforms + TIMER_RESOLUTION = 10; // Experimentally determined +{$EXTERNALSYM TIMER_RESOLUTION} + + // SDL_audio.h constants + AUDIO_U8 = $0008; // Unsigned 8-bit samples +{$EXTERNALSYM AUDIO_U8} + AUDIO_S8 = $8008; // Signed 8-bit samples +{$EXTERNALSYM AUDIO_S8} + AUDIO_U16LSB = $0010; // Unsigned 16-bit samples +{$EXTERNALSYM AUDIO_U16LSB} + AUDIO_S16LSB = $8010; // Signed 16-bit samples +{$EXTERNALSYM AUDIO_S16LSB} + AUDIO_U16MSB = $1010; // As above, but big-endian byte order +{$EXTERNALSYM AUDIO_U16MSB} + AUDIO_S16MSB = $9010; // As above, but big-endian byte order +{$EXTERNALSYM AUDIO_S16MSB} + AUDIO_U16 = AUDIO_U16LSB; +{$EXTERNALSYM AUDIO_U16} + AUDIO_S16 = AUDIO_S16LSB; +{$EXTERNALSYM AUDIO_S16} + + + // SDL_cdrom.h constants + // The maximum number of CD-ROM tracks on a disk + SDL_MAX_TRACKS = 99; +{$EXTERNALSYM SDL_MAX_TRACKS} + // The types of CD-ROM track possible + SDL_AUDIO_TRACK = $00; +{$EXTERNALSYM SDL_AUDIO_TRACK} + SDL_DATA_TRACK = $04; +{$EXTERNALSYM SDL_DATA_TRACK} + + // Conversion functions from frames to Minute/Second/Frames and vice versa + CD_FPS = 75; +{$EXTERNALSYM CD_FPS} + // SDL_byteorder.h constants + // The two types of endianness + SDL_LIL_ENDIAN = 1234; +{$EXTERNALSYM SDL_LIL_ENDIAN} + SDL_BIG_ENDIAN = 4321; +{$EXTERNALSYM SDL_BIG_ENDIAN} + +{$IFDEF IA32} + + SDL_BYTEORDER = SDL_LIL_ENDIAN; +{$EXTERNALSYM SDL_BYTEORDER} + // Native audio byte ordering + AUDIO_U16SYS = AUDIO_U16LSB; +{$EXTERNALSYM AUDIO_U16SYS} + AUDIO_S16SYS = AUDIO_S16LSB; +{$EXTERNALSYM AUDIO_S16SYS} + +{$ELSE} + + SDL_BYTEORDER = SDL_BIG_ENDIAN; +{$EXTERNALSYM SDL_BYTEORDER} + // Native audio byte ordering + AUDIO_U16SYS = AUDIO_U16MSB; +{$EXTERNALSYM AUDIO_U16SYS} + AUDIO_S16SYS = AUDIO_S16MSB; +{$EXTERNALSYM AUDIO_S16SYS} + +{$ENDIF} + + + SDL_MIX_MAXVOLUME = 128; +{$EXTERNALSYM SDL_MIX_MAXVOLUME} + + // SDL_joystick.h constants + MAX_JOYSTICKS = 2; // only 2 are supported in the multimedia API +{$EXTERNALSYM MAX_JOYSTICKS} + MAX_AXES = 6; // each joystick can have up to 6 axes +{$EXTERNALSYM MAX_AXES} + MAX_BUTTONS = 32; // and 32 buttons +{$EXTERNALSYM MAX_BUTTONS} + AXIS_MIN = -32768; // minimum value for axis coordinate +{$EXTERNALSYM AXIS_MIN} + AXIS_MAX = 32767; // maximum value for axis coordinate +{$EXTERNALSYM AXIS_MAX} + JOY_AXIS_THRESHOLD = (((AXIS_MAX) - (AXIS_MIN)) / 100); // 1% motion +{$EXTERNALSYM JOY_AXIS_THRESHOLD} + //JOY_BUTTON_FLAG(n) (1<<n) + // array to hold joystick ID values + //static UInt SYS_JoystickID[MAX_JOYSTICKS]; + //static JOYCAPS SYS_Joystick[MAX_JOYSTICKS]; + + { Get the current state of a POV hat on a joystick + The return value is one of the following positions: } + SDL_HAT_CENTERED = $00; +{$EXTERNALSYM SDL_HAT_CENTERED} + SDL_HAT_UP = $01; +{$EXTERNALSYM SDL_HAT_UP} + SDL_HAT_RIGHT = $02; +{$EXTERNALSYM SDL_HAT_RIGHT} + SDL_HAT_DOWN = $04; +{$EXTERNALSYM SDL_HAT_DOWN} + SDL_HAT_LEFT = $08; +{$EXTERNALSYM SDL_HAT_LEFT} + SDL_HAT_RIGHTUP = SDL_HAT_RIGHT or SDL_HAT_UP; +{$EXTERNALSYM SDL_HAT_RIGHTUP} + SDL_HAT_RIGHTDOWN = SDL_HAT_RIGHT or SDL_HAT_DOWN; +{$EXTERNALSYM SDL_HAT_RIGHTDOWN} + SDL_HAT_LEFTUP = SDL_HAT_LEFT or SDL_HAT_UP; +{$EXTERNALSYM SDL_HAT_LEFTUP} + SDL_HAT_LEFTDOWN = SDL_HAT_LEFT or SDL_HAT_DOWN; +{$EXTERNALSYM SDL_HAT_LEFTDOWN} + + // SDL_events.h constants + SDL_NOEVENT = 0; // Unused (do not remove) +{$EXTERNALSYM SDL_NOEVENT} + SDL_ACTIVEEVENT = 1; // Application loses/gains visibility +{$EXTERNALSYM SDL_ACTIVEEVENT} + SDL_KEYDOWN = 2; // Keys pressed +{$EXTERNALSYM SDL_KEYDOWN} + SDL_KEYUP = 3; // Keys released +{$EXTERNALSYM SDL_KEYUP} + SDL_MOUSEMOTION = 4; // Mouse moved +{$EXTERNALSYM SDL_MOUSEMOTION} + SDL_MOUSEBUTTONDOWN = 5; // Mouse button pressed +{$EXTERNALSYM SDL_MOUSEBUTTONDOWN} + SDL_MOUSEBUTTONUP = 6; // Mouse button released +{$EXTERNALSYM SDL_MOUSEBUTTONUP} + SDL_JOYAXISMOTION = 7; // Joystick axis motion +{$EXTERNALSYM SDL_JOYAXISMOTION} + SDL_JOYBALLMOTION = 8; // Joystick trackball motion +{$EXTERNALSYM SDL_JOYBALLMOTION} + SDL_JOYHATMOTION = 9; // Joystick hat position change +{$EXTERNALSYM SDL_JOYHATMOTION} + SDL_JOYBUTTONDOWN = 10; // Joystick button pressed +{$EXTERNALSYM SDL_JOYBUTTONDOWN} + SDL_JOYBUTTONUP = 11; // Joystick button released +{$EXTERNALSYM SDL_JOYBUTTONUP} + SDL_QUITEV = 12; // User-requested quit ( Changed due to procedure conflict ) +{$EXTERNALSYM SDL_QUIT} + SDL_SYSWMEVENT = 13; // System specific event +{$EXTERNALSYM SDL_SYSWMEVENT} + SDL_EVENT_RESERVEDA = 14; // Reserved for future use.. +{$EXTERNALSYM SDL_EVENT_RESERVEDA} + SDL_EVENT_RESERVED = 15; // Reserved for future use.. +{$EXTERNALSYM SDL_EVENT_RESERVED} + SDL_VIDEORESIZE = 16; // User resized video mode +{$EXTERNALSYM SDL_VIDEORESIZE} + SDL_VIDEOEXPOSE = 17; // Screen needs to be redrawn +{$EXTERNALSYM SDL_VIDEOEXPOSE} + SDL_EVENT_RESERVED2 = 18; // Reserved for future use.. +{$EXTERNALSYM SDL_EVENT_RESERVED2} + SDL_EVENT_RESERVED3 = 19; // Reserved for future use.. +{$EXTERNALSYM SDL_EVENT_RESERVED3} + SDL_EVENT_RESERVED4 = 20; // Reserved for future use.. +{$EXTERNALSYM SDL_EVENT_RESERVED4} + SDL_EVENT_RESERVED5 = 21; // Reserved for future use.. +{$EXTERNALSYM SDL_EVENT_RESERVED5} + SDL_EVENT_RESERVED6 = 22; // Reserved for future use.. +{$EXTERNALSYM SDL_EVENT_RESERVED6} + SDL_EVENT_RESERVED7 = 23; // Reserved for future use.. +{$EXTERNALSYM SDL_EVENT_RESERVED7} + // Events SDL_USEREVENT through SDL_MAXEVENTS-1 are for your use + SDL_USEREVENT = 24; +{$EXTERNALSYM SDL_USEREVENT} + // This last event is only for bounding internal arrays + // It is the number of bits in the event mask datatype -- UInt32 + SDL_NUMEVENTS = 32; +{$EXTERNALSYM SDL_NUMEVENTS} + + SDL_ALLEVENTS = $FFFFFFFF; +{$EXTERNALSYM SDL_ALLEVENTS} + + SDL_ACTIVEEVENTMASK = 1 shl SDL_ACTIVEEVENT; +{$EXTERNALSYM SDL_ACTIVEEVENTMASK} + SDL_KEYDOWNMASK = 1 shl SDL_KEYDOWN; +{$EXTERNALSYM SDL_KEYDOWNMASK} + SDL_KEYUPMASK = 1 shl SDL_KEYUP; +{$EXTERNALSYM SDL_KEYUPMASK} + SDL_MOUSEMOTIONMASK = 1 shl SDL_MOUSEMOTION; +{$EXTERNALSYM SDL_MOUSEMOTIONMASK} + SDL_MOUSEBUTTONDOWNMASK = 1 shl SDL_MOUSEBUTTONDOWN; +{$EXTERNALSYM SDL_MOUSEBUTTONDOWNMASK} + SDL_MOUSEBUTTONUPMASK = 1 shl SDL_MOUSEBUTTONUP; +{$EXTERNALSYM SDL_MOUSEBUTTONUPMASK} + SDL_MOUSEEVENTMASK = 1 shl SDL_MOUSEMOTION or + 1 shl SDL_MOUSEBUTTONDOWN or + 1 shl SDL_MOUSEBUTTONUP; +{$EXTERNALSYM SDL_MOUSEEVENTMASK} + SDL_JOYAXISMOTIONMASK = 1 shl SDL_JOYAXISMOTION; +{$EXTERNALSYM SDL_JOYAXISMOTIONMASK} + SDL_JOYBALLMOTIONMASK = 1 shl SDL_JOYBALLMOTION; +{$EXTERNALSYM SDL_JOYBALLMOTIONMASK} + SDL_JOYHATMOTIONMASK = 1 shl SDL_JOYHATMOTION; +{$EXTERNALSYM SDL_JOYHATMOTIONMASK} + SDL_JOYBUTTONDOWNMASK = 1 shl SDL_JOYBUTTONDOWN; +{$EXTERNALSYM SDL_JOYBUTTONDOWNMASK} + SDL_JOYBUTTONUPMASK = 1 shl SDL_JOYBUTTONUP; +{$EXTERNALSYM SDL_JOYBUTTONUPMASK} + SDL_JOYEVENTMASK = 1 shl SDL_JOYAXISMOTION or + 1 shl SDL_JOYBALLMOTION or + 1 shl SDL_JOYHATMOTION or + 1 shl SDL_JOYBUTTONDOWN or + 1 shl SDL_JOYBUTTONUP; +{$EXTERNALSYM SDL_JOYEVENTMASK} + SDL_VIDEORESIZEMASK = 1 shl SDL_VIDEORESIZE; +{$EXTERNALSYM SDL_VIDEORESIZEMASK} + SDL_QUITMASK = 1 shl SDL_QUITEV; +{$EXTERNALSYM SDL_QUITMASK} + SDL_SYSWMEVENTMASK = 1 shl SDL_SYSWMEVENT; +{$EXTERNALSYM SDL_SYSWMEVENTMASK} + + { This function allows you to set the state of processing certain events. + If 'state' is set to SDL_IGNORE, that event will be automatically dropped + from the event queue and will not event be filtered. + If 'state' is set to SDL_ENABLE, that event will be processed normally. + If 'state' is set to SDL_QUERY, SDL_EventState() will return the + current processing state of the specified event. } + + SDL_QUERY = -1; +{$EXTERNALSYM SDL_QUERY} + SDL_IGNORE = 0; +{$EXTERNALSYM SDL_IGNORE} + SDL_DISABLE = 0; +{$EXTERNALSYM SDL_DISABLE} + SDL_ENABLE = 1; +{$EXTERNALSYM SDL_ENABLE} + + //SDL_keyboard.h constants + // This is the mask which refers to all hotkey bindings + SDL_ALL_HOTKEYS = $FFFFFFFF; +{$EXTERNALSYM SDL_ALL_HOTKEYS} + +{ Enable/Disable keyboard repeat. Keyboard repeat defaults to off. + 'delay' is the initial delay in ms between the time when a key is + pressed, and keyboard repeat begins. + 'interval' is the time in ms between keyboard repeat events. } + + SDL_DEFAULT_REPEAT_DELAY = 500; +{$EXTERNALSYM SDL_DEFAULT_REPEAT_DELAY} + SDL_DEFAULT_REPEAT_INTERVAL = 30; +{$EXTERNALSYM SDL_DEFAULT_REPEAT_INTERVAL} + + // The keyboard syms have been cleverly chosen to map to ASCII + SDLK_UNKNOWN = 0; +{$EXTERNALSYM SDLK_UNKNOWN} + SDLK_FIRST = 0; +{$EXTERNALSYM SDLK_FIRST} + SDLK_BACKSPACE = 8; +{$EXTERNALSYM SDLK_BACKSPACE} + SDLK_TAB = 9; +{$EXTERNALSYM SDLK_TAB} + SDLK_CLEAR = 12; +{$EXTERNALSYM SDLK_CLEAR} + SDLK_RETURN = 13; +{$EXTERNALSYM SDLK_RETURN} + SDLK_PAUSE = 19; +{$EXTERNALSYM SDLK_PAUSE} + SDLK_ESCAPE = 27; +{$EXTERNALSYM SDLK_ESCAPE} + SDLK_SPACE = 32; +{$EXTERNALSYM SDLK_SPACE} + SDLK_EXCLAIM = 33; +{$EXTERNALSYM SDLK_EXCLAIM} + SDLK_QUOTEDBL = 34; +{$EXTERNALSYM SDLK_QUOTEDBL} + SDLK_HASH = 35; +{$EXTERNALSYM SDLK_HASH} + SDLK_DOLLAR = 36; +{$EXTERNALSYM SDLK_DOLLAR} + SDLK_AMPERSAND = 38; +{$EXTERNALSYM SDLK_AMPERSAND} + SDLK_QUOTE = 39; +{$EXTERNALSYM SDLK_QUOTE} + SDLK_LEFTPAREN = 40; +{$EXTERNALSYM SDLK_LEFTPAREN} + SDLK_RIGHTPAREN = 41; +{$EXTERNALSYM SDLK_RIGHTPAREN} + SDLK_ASTERISK = 42; +{$EXTERNALSYM SDLK_ASTERISK} + SDLK_PLUS = 43; +{$EXTERNALSYM SDLK_PLUS} + SDLK_COMMA = 44; +{$EXTERNALSYM SDLK_COMMA} + SDLK_MINUS = 45; +{$EXTERNALSYM SDLK_MINUS} + SDLK_PERIOD = 46; +{$EXTERNALSYM SDLK_PERIOD} + SDLK_SLASH = 47; +{$EXTERNALSYM SDLK_SLASH} + SDLK_0 = 48; +{$EXTERNALSYM SDLK_0} + SDLK_1 = 49; +{$EXTERNALSYM SDLK_1} + SDLK_2 = 50; +{$EXTERNALSYM SDLK_2} + SDLK_3 = 51; +{$EXTERNALSYM SDLK_3} + SDLK_4 = 52; +{$EXTERNALSYM SDLK_4} + SDLK_5 = 53; +{$EXTERNALSYM SDLK_5} + SDLK_6 = 54; +{$EXTERNALSYM SDLK_6} + SDLK_7 = 55; +{$EXTERNALSYM SDLK_7} + SDLK_8 = 56; +{$EXTERNALSYM SDLK_8} + SDLK_9 = 57; +{$EXTERNALSYM SDLK_9} + SDLK_COLON = 58; +{$EXTERNALSYM SDLK_COLON} + SDLK_SEMICOLON = 59; +{$EXTERNALSYM SDLK_SEMICOLON} + SDLK_LESS = 60; +{$EXTERNALSYM SDLK_LESS} + SDLK_EQUALS = 61; +{$EXTERNALSYM SDLK_EQUALS} + SDLK_GREATER = 62; +{$EXTERNALSYM SDLK_GREATER} + SDLK_QUESTION = 63; +{$EXTERNALSYM SDLK_QUESTION} + SDLK_AT = 64; +{$EXTERNALSYM SDLK_AT} + + { Skip uppercase letters } + + SDLK_LEFTBRACKET = 91; +{$EXTERNALSYM SDLK_LEFTBRACKET} + SDLK_BACKSLASH = 92; +{$EXTERNALSYM SDLK_BACKSLASH} + SDLK_RIGHTBRACKET = 93; +{$EXTERNALSYM SDLK_RIGHTBRACKET} + SDLK_CARET = 94; +{$EXTERNALSYM SDLK_CARET} + SDLK_UNDERSCORE = 95; +{$EXTERNALSYM SDLK_UNDERSCORE} + SDLK_BACKQUOTE = 96; +{$EXTERNALSYM SDLK_BACKQUOTE} + SDLK_a = 97; +{$EXTERNALSYM SDLK_a} + SDLK_b = 98; +{$EXTERNALSYM SDLK_b} + SDLK_c = 99; +{$EXTERNALSYM SDLK_c} + SDLK_d = 100; +{$EXTERNALSYM SDLK_d} + SDLK_e = 101; +{$EXTERNALSYM SDLK_e} + SDLK_f = 102; +{$EXTERNALSYM SDLK_f} + SDLK_g = 103; +{$EXTERNALSYM SDLK_g} + SDLK_h = 104; +{$EXTERNALSYM SDLK_h} + SDLK_i = 105; +{$EXTERNALSYM SDLK_i} + SDLK_j = 106; +{$EXTERNALSYM SDLK_j} + SDLK_k = 107; +{$EXTERNALSYM SDLK_k} + SDLK_l = 108; +{$EXTERNALSYM SDLK_l} + SDLK_m = 109; +{$EXTERNALSYM SDLK_m} + SDLK_n = 110; +{$EXTERNALSYM SDLK_n} + SDLK_o = 111; +{$EXTERNALSYM SDLK_o} + SDLK_p = 112; +{$EXTERNALSYM SDLK_p} + SDLK_q = 113; +{$EXTERNALSYM SDLK_q} + SDLK_r = 114; +{$EXTERNALSYM SDLK_r} + SDLK_s = 115; +{$EXTERNALSYM SDLK_s} + SDLK_t = 116; +{$EXTERNALSYM SDLK_t} + SDLK_u = 117; +{$EXTERNALSYM SDLK_u} + SDLK_v = 118; +{$EXTERNALSYM SDLK_v} + SDLK_w = 119; +{$EXTERNALSYM SDLK_w} + SDLK_x = 120; +{$EXTERNALSYM SDLK_x} + SDLK_y = 121; +{$EXTERNALSYM SDLK_y} + SDLK_z = 122; +{$EXTERNALSYM SDLK_z} + SDLK_DELETE = 127; +{$EXTERNALSYM SDLK_DELETE} + // End of ASCII mapped keysyms + + // International keyboard syms + SDLK_WORLD_0 = 160; // 0xA0 +{$EXTERNALSYM SDLK_WORLD_0} + SDLK_WORLD_1 = 161; +{$EXTERNALSYM SDLK_WORLD_1} + SDLK_WORLD_2 = 162; +{$EXTERNALSYM SDLK_WORLD_2} + SDLK_WORLD_3 = 163; +{$EXTERNALSYM SDLK_WORLD_3} + SDLK_WORLD_4 = 164; +{$EXTERNALSYM SDLK_WORLD_4} + SDLK_WORLD_5 = 165; +{$EXTERNALSYM SDLK_WORLD_5} + SDLK_WORLD_6 = 166; +{$EXTERNALSYM SDLK_WORLD_6} + SDLK_WORLD_7 = 167; +{$EXTERNALSYM SDLK_WORLD_7} + SDLK_WORLD_8 = 168; +{$EXTERNALSYM SDLK_WORLD_8} + SDLK_WORLD_9 = 169; +{$EXTERNALSYM SDLK_WORLD_9} + SDLK_WORLD_10 = 170; +{$EXTERNALSYM SDLK_WORLD_10} + SDLK_WORLD_11 = 171; +{$EXTERNALSYM SDLK_WORLD_11} + SDLK_WORLD_12 = 172; +{$EXTERNALSYM SDLK_WORLD_12} + SDLK_WORLD_13 = 173; +{$EXTERNALSYM SDLK_WORLD_13} + SDLK_WORLD_14 = 174; +{$EXTERNALSYM SDLK_WORLD_14} + SDLK_WORLD_15 = 175; +{$EXTERNALSYM SDLK_WORLD_15} + SDLK_WORLD_16 = 176; +{$EXTERNALSYM SDLK_WORLD_16} + SDLK_WORLD_17 = 177; +{$EXTERNALSYM SDLK_WORLD_17} + SDLK_WORLD_18 = 178; +{$EXTERNALSYM SDLK_WORLD_18} + SDLK_WORLD_19 = 179; +{$EXTERNALSYM SDLK_WORLD_19} + SDLK_WORLD_20 = 180; +{$EXTERNALSYM SDLK_WORLD_20} + SDLK_WORLD_21 = 181; +{$EXTERNALSYM SDLK_WORLD_21} + SDLK_WORLD_22 = 182; +{$EXTERNALSYM SDLK_WORLD_22} + SDLK_WORLD_23 = 183; +{$EXTERNALSYM SDLK_WORLD_23} + SDLK_WORLD_24 = 184; +{$EXTERNALSYM SDLK_WORLD_24} + SDLK_WORLD_25 = 185; +{$EXTERNALSYM SDLK_WORLD_25} + SDLK_WORLD_26 = 186; +{$EXTERNALSYM SDLK_WORLD_26} + SDLK_WORLD_27 = 187; +{$EXTERNALSYM SDLK_WORLD_27} + SDLK_WORLD_28 = 188; +{$EXTERNALSYM SDLK_WORLD_28} + SDLK_WORLD_29 = 189; +{$EXTERNALSYM SDLK_WORLD_29} + SDLK_WORLD_30 = 190; +{$EXTERNALSYM SDLK_WORLD_30} + SDLK_WORLD_31 = 191; +{$EXTERNALSYM SDLK_WORLD_31} + SDLK_WORLD_32 = 192; +{$EXTERNALSYM SDLK_WORLD_32} + SDLK_WORLD_33 = 193; +{$EXTERNALSYM SDLK_WORLD_33} + SDLK_WORLD_34 = 194; +{$EXTERNALSYM SDLK_WORLD_34} + SDLK_WORLD_35 = 195; +{$EXTERNALSYM SDLK_WORLD_35} + SDLK_WORLD_36 = 196; +{$EXTERNALSYM SDLK_WORLD_36} + SDLK_WORLD_37 = 197; +{$EXTERNALSYM SDLK_WORLD_37} + SDLK_WORLD_38 = 198; +{$EXTERNALSYM SDLK_WORLD_38} + SDLK_WORLD_39 = 199; +{$EXTERNALSYM SDLK_WORLD_39} + SDLK_WORLD_40 = 200; +{$EXTERNALSYM SDLK_WORLD_40} + SDLK_WORLD_41 = 201; +{$EXTERNALSYM SDLK_WORLD_41} + SDLK_WORLD_42 = 202; +{$EXTERNALSYM SDLK_WORLD_42} + SDLK_WORLD_43 = 203; +{$EXTERNALSYM SDLK_WORLD_43} + SDLK_WORLD_44 = 204; +{$EXTERNALSYM SDLK_WORLD_44} + SDLK_WORLD_45 = 205; +{$EXTERNALSYM SDLK_WORLD_45} + SDLK_WORLD_46 = 206; +{$EXTERNALSYM SDLK_WORLD_46} + SDLK_WORLD_47 = 207; +{$EXTERNALSYM SDLK_WORLD_47} + SDLK_WORLD_48 = 208; +{$EXTERNALSYM SDLK_WORLD_48} + SDLK_WORLD_49 = 209; +{$EXTERNALSYM SDLK_WORLD_49} + SDLK_WORLD_50 = 210; +{$EXTERNALSYM SDLK_WORLD_50} + SDLK_WORLD_51 = 211; +{$EXTERNALSYM SDLK_WORLD_51} + SDLK_WORLD_52 = 212; +{$EXTERNALSYM SDLK_WORLD_52} + SDLK_WORLD_53 = 213; +{$EXTERNALSYM SDLK_WORLD_53} + SDLK_WORLD_54 = 214; +{$EXTERNALSYM SDLK_WORLD_54} + SDLK_WORLD_55 = 215; +{$EXTERNALSYM SDLK_WORLD_55} + SDLK_WORLD_56 = 216; +{$EXTERNALSYM SDLK_WORLD_56} + SDLK_WORLD_57 = 217; +{$EXTERNALSYM SDLK_WORLD_57} + SDLK_WORLD_58 = 218; +{$EXTERNALSYM SDLK_WORLD_58} + SDLK_WORLD_59 = 219; +{$EXTERNALSYM SDLK_WORLD_59} + SDLK_WORLD_60 = 220; +{$EXTERNALSYM SDLK_WORLD_60} + SDLK_WORLD_61 = 221; +{$EXTERNALSYM SDLK_WORLD_61} + SDLK_WORLD_62 = 222; +{$EXTERNALSYM SDLK_WORLD_62} + SDLK_WORLD_63 = 223; +{$EXTERNALSYM SDLK_WORLD_63} + SDLK_WORLD_64 = 224; +{$EXTERNALSYM SDLK_WORLD_64} + SDLK_WORLD_65 = 225; +{$EXTERNALSYM SDLK_WORLD_65} + SDLK_WORLD_66 = 226; +{$EXTERNALSYM SDLK_WORLD_66} + SDLK_WORLD_67 = 227; +{$EXTERNALSYM SDLK_WORLD_67} + SDLK_WORLD_68 = 228; +{$EXTERNALSYM SDLK_WORLD_68} + SDLK_WORLD_69 = 229; +{$EXTERNALSYM SDLK_WORLD_69} + SDLK_WORLD_70 = 230; +{$EXTERNALSYM SDLK_WORLD_70} + SDLK_WORLD_71 = 231; +{$EXTERNALSYM SDLK_WORLD_71} + SDLK_WORLD_72 = 232; +{$EXTERNALSYM SDLK_WORLD_72} + SDLK_WORLD_73 = 233; +{$EXTERNALSYM SDLK_WORLD_73} + SDLK_WORLD_74 = 234; +{$EXTERNALSYM SDLK_WORLD_74} + SDLK_WORLD_75 = 235; +{$EXTERNALSYM SDLK_WORLD_75} + SDLK_WORLD_76 = 236; +{$EXTERNALSYM SDLK_WORLD_76} + SDLK_WORLD_77 = 237; +{$EXTERNALSYM SDLK_WORLD_77} + SDLK_WORLD_78 = 238; +{$EXTERNALSYM SDLK_WORLD_78} + SDLK_WORLD_79 = 239; +{$EXTERNALSYM SDLK_WORLD_79} + SDLK_WORLD_80 = 240; +{$EXTERNALSYM SDLK_WORLD_80} + SDLK_WORLD_81 = 241; +{$EXTERNALSYM SDLK_WORLD_81} + SDLK_WORLD_82 = 242; +{$EXTERNALSYM SDLK_WORLD_82} + SDLK_WORLD_83 = 243; +{$EXTERNALSYM SDLK_WORLD_83} + SDLK_WORLD_84 = 244; +{$EXTERNALSYM SDLK_WORLD_84} + SDLK_WORLD_85 = 245; +{$EXTERNALSYM SDLK_WORLD_85} + SDLK_WORLD_86 = 246; +{$EXTERNALSYM SDLK_WORLD_86} + SDLK_WORLD_87 = 247; +{$EXTERNALSYM SDLK_WORLD_87} + SDLK_WORLD_88 = 248; +{$EXTERNALSYM SDLK_WORLD_88} + SDLK_WORLD_89 = 249; +{$EXTERNALSYM SDLK_WORLD_89} + SDLK_WORLD_90 = 250; +{$EXTERNALSYM SDLK_WORLD_90} + SDLK_WORLD_91 = 251; +{$EXTERNALSYM SDLK_WORLD_91} + SDLK_WORLD_92 = 252; +{$EXTERNALSYM SDLK_WORLD_92} + SDLK_WORLD_93 = 253; +{$EXTERNALSYM SDLK_WORLD_93} + SDLK_WORLD_94 = 254; +{$EXTERNALSYM SDLK_WORLD_94} + SDLK_WORLD_95 = 255; // 0xFF +{$EXTERNALSYM SDLK_WORLD_95} + + // Numeric keypad + SDLK_KP0 = 256; +{$EXTERNALSYM SDLK_KP0} + SDLK_KP1 = 257; +{$EXTERNALSYM SDLK_KP1} + SDLK_KP2 = 258; +{$EXTERNALSYM SDLK_KP2} + SDLK_KP3 = 259; +{$EXTERNALSYM SDLK_KP3} + SDLK_KP4 = 260; +{$EXTERNALSYM SDLK_KP4} + SDLK_KP5 = 261; +{$EXTERNALSYM SDLK_KP5} + SDLK_KP6 = 262; +{$EXTERNALSYM SDLK_KP6} + SDLK_KP7 = 263; +{$EXTERNALSYM SDLK_KP7} + SDLK_KP8 = 264; +{$EXTERNALSYM SDLK_KP8} + SDLK_KP9 = 265; +{$EXTERNALSYM SDLK_KP9} + SDLK_KP_PERIOD = 266; +{$EXTERNALSYM SDLK_KP_PERIOD} + SDLK_KP_DIVIDE = 267; +{$EXTERNALSYM SDLK_KP_DIVIDE} + SDLK_KP_MULTIPLY = 268; +{$EXTERNALSYM SDLK_KP_MULTIPLY} + SDLK_KP_MINUS = 269; +{$EXTERNALSYM SDLK_KP_MINUS} + SDLK_KP_PLUS = 270; +{$EXTERNALSYM SDLK_KP_PLUS} + SDLK_KP_ENTER = 271; +{$EXTERNALSYM SDLK_KP_ENTER} + SDLK_KP_EQUALS = 272; +{$EXTERNALSYM SDLK_KP_EQUALS} + + // Arrows + Home/End pad + SDLK_UP = 273; +{$EXTERNALSYM SDLK_UP} + SDLK_DOWN = 274; +{$EXTERNALSYM SDLK_DOWN} + SDLK_RIGHT = 275; +{$EXTERNALSYM SDLK_RIGHT} + SDLK_LEFT = 276; +{$EXTERNALSYM SDLK_LEFT} + SDLK_INSERT = 277; +{$EXTERNALSYM SDLK_INSERT} + SDLK_HOME = 278; +{$EXTERNALSYM SDLK_HOME} + SDLK_END = 279; +{$EXTERNALSYM SDLK_END} + SDLK_PAGEUP = 280; +{$EXTERNALSYM SDLK_PAGEUP} + SDLK_PAGEDOWN = 281; +{$EXTERNALSYM SDLK_PAGEDOWN} + + // Function keys + SDLK_F1 = 282; +{$EXTERNALSYM SDLK_F1} + SDLK_F2 = 283; +{$EXTERNALSYM SDLK_F2} + SDLK_F3 = 284; +{$EXTERNALSYM SDLK_F3} + SDLK_F4 = 285; +{$EXTERNALSYM SDLK_F4} + SDLK_F5 = 286; +{$EXTERNALSYM SDLK_F5} + SDLK_F6 = 287; +{$EXTERNALSYM SDLK_F6} + SDLK_F7 = 288; +{$EXTERNALSYM SDLK_F7} + SDLK_F8 = 289; +{$EXTERNALSYM SDLK_F8} + SDLK_F9 = 290; +{$EXTERNALSYM SDLK_F9} + SDLK_F10 = 291; +{$EXTERNALSYM SDLK_F10} + SDLK_F11 = 292; +{$EXTERNALSYM SDLK_F11} + SDLK_F12 = 293; +{$EXTERNALSYM SDLK_F12} + SDLK_F13 = 294; +{$EXTERNALSYM SDLK_F13} + SDLK_F14 = 295; +{$EXTERNALSYM SDLK_F14} + SDLK_F15 = 296; +{$EXTERNALSYM SDLK_F15} + + // Key state modifier keys + SDLK_NUMLOCK = 300; +{$EXTERNALSYM SDLK_NUMLOCK} + SDLK_CAPSLOCK = 301; +{$EXTERNALSYM SDLK_CAPSLOCK} + SDLK_SCROLLOCK = 302; +{$EXTERNALSYM SDLK_SCROLLOCK} + SDLK_RSHIFT = 303; +{$EXTERNALSYM SDLK_RSHIFT} + SDLK_LSHIFT = 304; +{$EXTERNALSYM SDLK_LSHIFT} + SDLK_RCTRL = 305; +{$EXTERNALSYM SDLK_RCTRL} + SDLK_LCTRL = 306; +{$EXTERNALSYM SDLK_LCTRL} + SDLK_RALT = 307; +{$EXTERNALSYM SDLK_RALT} + SDLK_LALT = 308; +{$EXTERNALSYM SDLK_LALT} + SDLK_RMETA = 309; +{$EXTERNALSYM SDLK_RMETA} + SDLK_LMETA = 310; +{$EXTERNALSYM SDLK_LMETA} + SDLK_LSUPER = 311; // Left "Windows" key +{$EXTERNALSYM SDLK_LSUPER} + SDLK_RSUPER = 312; // Right "Windows" key +{$EXTERNALSYM SDLK_RSUPER} + SDLK_MODE = 313; // "Alt Gr" key +{$EXTERNALSYM SDLK_MODE} + SDLK_COMPOSE = 314; // Multi-key compose key +{$EXTERNALSYM SDLK_COMPOSE} + + // Miscellaneous function keys + SDLK_HELP = 315; +{$EXTERNALSYM SDLK_HELP} + SDLK_PRINT = 316; +{$EXTERNALSYM SDLK_PRINT} + SDLK_SYSREQ = 317; +{$EXTERNALSYM SDLK_SYSREQ} + SDLK_BREAK = 318; +{$EXTERNALSYM SDLK_BREAK} + SDLK_MENU = 319; +{$EXTERNALSYM SDLK_MENU} + SDLK_POWER = 320; // Power Macintosh power key +{$EXTERNALSYM SDLK_POWER} + SDLK_EURO = 321; // Some european keyboards +{$EXTERNALSYM SDLK_EURO} + +{$IFDEF GP2X} +SDLK_GP2X_UP = 0; +{$EXTERNALSYM SDLK_GP2X_UP} +SDLK_GP2X_UPLEFT = 1; +{$EXTERNALSYM SDLK_GP2X_UPLEFT} +SDLK_GP2X_LEFT = 2; +{$EXTERNALSYM SDLK_GP2X_LEFT} +SDLK_GP2X_DOWNLEFT = 3; +{$EXTERNALSYM SDLK_GP2X_DOWNLEFT} +SDLK_GP2X_DOWN = 4; +{$EXTERNALSYM SDLK_GP2X_DOWN} +SDLK_GP2X_DOWNRIGHT = 5; +{$EXTERNALSYM SDLK_GP2X_DOWNRIGHT} +SDLK_GP2X_RIGHT = 6; +{$EXTERNALSYM SDLK_GP2X_RIGHT} +SDLK_GP2X_UPRIGHT = 7; +{$EXTERNALSYM SDLK_GP2X_UPRIGHT} +SDLK_GP2X_START = 8; +{$EXTERNALSYM SDLK_GP2X_START} +SDLK_GP2X_SELECT = 9; +{$EXTERNALSYM SDLK_GP2X_SELECT} +SDLK_GP2X_L = 10; +{$EXTERNALSYM SDLK_GP2X_L} +SDLK_GP2X_R = 11; +{$EXTERNALSYM SDLK_GP2X_R} +SDLK_GP2X_A = 12; +{$EXTERNALSYM SDLK_GP2X_A} +SDLK_GP2X_B = 13; +{$EXTERNALSYM SDLK_GP2X_B} +SDLK_GP2X_Y = 14; +{$EXTERNALSYM SDLK_GP2X_Y} +SDLK_GP2X_X = 15; +{$EXTERNALSYM SDLK_GP2X_X} +SDLK_GP2X_VOLUP = 16; +{$EXTERNALSYM SDLK_GP2X_VOLUP} +SDLK_GP2X_VOLDOWN = 17; +{$EXTERNALSYM SDLK_GP2X_VOLDOWN} +SDLK_GP2X_CLICK = 18; +{$EXTERNALSYM SDLK_GP2X_CLICK} +{$ENDIF} + + // Enumeration of valid key mods (possibly OR'd together) + KMOD_NONE = $0000; +{$EXTERNALSYM KMOD_NONE} + KMOD_LSHIFT = $0001; +{$EXTERNALSYM KMOD_LSHIFT} + KMOD_RSHIFT = $0002; +{$EXTERNALSYM KMOD_RSHIFT} + KMOD_LCTRL = $0040; +{$EXTERNALSYM KMOD_LCTRL} + KMOD_RCTRL = $0080; +{$EXTERNALSYM KMOD_RCTRL} + KMOD_LALT = $0100; +{$EXTERNALSYM KMOD_LALT} + KMOD_RALT = $0200; +{$EXTERNALSYM KMOD_RALT} + KMOD_LMETA = $0400; +{$EXTERNALSYM KMOD_LMETA} + KMOD_RMETA = $0800; +{$EXTERNALSYM KMOD_RMETA} + KMOD_NUM = $1000; +{$EXTERNALSYM KMOD_NUM} + KMOD_CAPS = $2000; +{$EXTERNALSYM KMOD_CAPS} + KMOD_MODE = 44000; +{$EXTERNALSYM KMOD_MODE} + KMOD_RESERVED = $8000; +{$EXTERNALSYM KMOD_RESERVED} + + KMOD_CTRL = (KMOD_LCTRL or KMOD_RCTRL); +{$EXTERNALSYM KMOD_CTRL} + KMOD_SHIFT = (KMOD_LSHIFT or KMOD_RSHIFT); +{$EXTERNALSYM KMOD_SHIFT} + KMOD_ALT = (KMOD_LALT or KMOD_RALT); +{$EXTERNALSYM KMOD_ALT} + KMOD_META = (KMOD_LMETA or KMOD_RMETA); +{$EXTERNALSYM KMOD_META} + + //SDL_video.h constants + // Transparency definitions: These define alpha as the opacity of a surface */ + SDL_ALPHA_OPAQUE = 255; +{$EXTERNALSYM SDL_ALPHA_OPAQUE} + SDL_ALPHA_TRANSPARENT = 0; +{$EXTERNALSYM SDL_ALPHA_TRANSPARENT} + + // These are the currently supported flags for the SDL_surface + // Available for SDL_CreateRGBSurface() or SDL_SetVideoMode() + SDL_SWSURFACE = $00000000; // Surface is in system memory +{$EXTERNALSYM SDL_SWSURFACE} + SDL_HWSURFACE = $00000001; // Surface is in video memory +{$EXTERNALSYM SDL_HWSURFACE} + SDL_ASYNCBLIT = $00000004; // Use asynchronous blits if possible +{$EXTERNALSYM SDL_ASYNCBLIT} + // Available for SDL_SetVideoMode() + SDL_ANYFORMAT = $10000000; // Allow any video depth/pixel-format +{$EXTERNALSYM SDL_ANYFORMAT} + SDL_HWPALETTE = $20000000; // Surface has exclusive palette +{$EXTERNALSYM SDL_HWPALETTE} + SDL_DOUBLEBUF = $40000000; // Set up double-buffered video mode +{$EXTERNALSYM SDL_DOUBLEBUF} + SDL_FULLSCREEN = $80000000; // Surface is a full screen display +{$EXTERNALSYM SDL_FULLSCREEN} + SDL_OPENGL = $00000002; // Create an OpenGL rendering context +{$EXTERNALSYM SDL_OPENGL} + SDL_OPENGLBLIT = $00000002; // Create an OpenGL rendering context +{$EXTERNALSYM SDL_OPENGLBLIT} + SDL_RESIZABLE = $00000010; // This video mode may be resized +{$EXTERNALSYM SDL_RESIZABLE} + SDL_NOFRAME = $00000020; // No window caption or edge frame +{$EXTERNALSYM SDL_NOFRAME} + // Used internally (read-only) + SDL_HWACCEL = $00000100; // Blit uses hardware acceleration +{$EXTERNALSYM SDL_HWACCEL} + SDL_SRCCOLORKEY = $00001000; // Blit uses a source color key +{$EXTERNALSYM SDL_SRCCOLORKEY} + SDL_RLEACCELOK = $00002000; // Private flag +{$EXTERNALSYM SDL_RLEACCELOK} + SDL_RLEACCEL = $00004000; // Colorkey blit is RLE accelerated +{$EXTERNALSYM SDL_RLEACCEL} + SDL_SRCALPHA = $00010000; // Blit uses source alpha blending +{$EXTERNALSYM SDL_SRCALPHA} + SDL_SRCCLIPPING = $00100000; // Blit uses source clipping +{$EXTERNALSYM SDL_SRCCLIPPING} + SDL_PREALLOC = $01000000; // Surface uses preallocated memory +{$EXTERNALSYM SDL_PREALLOC} + + { The most common video overlay formats. + For an explanation of these pixel formats, see: + http://www.webartz.com/fourcc/indexyuv.htm + + For information on the relationship between color spaces, see: + http://www.neuro.sfc.keio.ac.jp/~aly/polygon/info/color-space-faq.html } + + SDL_YV12_OVERLAY = $32315659; // Planar mode: Y + V + U (3 planes) +{$EXTERNALSYM SDL_YV12_OVERLAY} + SDL_IYUV_OVERLAY = $56555949; // Planar mode: Y + U + V (3 planes) +{$EXTERNALSYM SDL_IYUV_OVERLAY} + SDL_YUY2_OVERLAY = $32595559; // Packed mode: Y0+U0+Y1+V0 (1 plane) +{$EXTERNALSYM SDL_YUY2_OVERLAY} + SDL_UYVY_OVERLAY = $59565955; // Packed mode: U0+Y0+V0+Y1 (1 plane) +{$EXTERNALSYM SDL_UYVY_OVERLAY} + SDL_YVYU_OVERLAY = $55595659; // Packed mode: Y0+V0+Y1+U0 (1 plane) +{$EXTERNALSYM SDL_YVYU_OVERLAY} + + // flags for SDL_SetPalette() + SDL_LOGPAL = $01; +{$EXTERNALSYM SDL_LOGPAL} + SDL_PHYSPAL = $02; +{$EXTERNALSYM SDL_PHYSPAL} + + //SDL_mouse.h constants + { Used as a mask when testing buttons in buttonstate + Button 1: Left mouse button + Button 2: Middle mouse button + Button 3: Right mouse button + Button 4: Mouse Wheel Up (may also be a real button) + Button 5: Mouse Wheel Down (may also be a real button) + Button 6: Mouse X1 (may also be a real button) + Button 7: Mouse X2 (may also be a real button) + } + SDL_BUTTON_LEFT = 1; +{$EXTERNALSYM SDL_BUTTON_LEFT} + SDL_BUTTON_MIDDLE = 2; +{$EXTERNALSYM SDL_BUTTON_MIDDLE} + SDL_BUTTON_RIGHT = 3; +{$EXTERNALSYM SDL_BUTTON_RIGHT} + SDL_BUTTON_WHEELUP = 4; +{$EXTERNALSYM SDL_BUTTON_WHEELUP} + SDL_BUTTON_WHEELDOWN = 5; +{$EXTERNALSYM SDL_BUTTON_WHEELDOWN} + SDL_BUTTON_X1 = 6; +{$EXTERNALSYM SDL_BUTTON_X1} + SDL_BUTTON_X2 = 7; +{$EXTERNALSYM SDL_BUTTON_X2} + + SDL_BUTTON_LMASK = SDL_PRESSED shl (SDL_BUTTON_LEFT - 1); +{$EXTERNALSYM SDL_BUTTON_LMASK} + SDL_BUTTON_MMASK = SDL_PRESSED shl (SDL_BUTTON_MIDDLE - 1); +{$EXTERNALSYM SDL_BUTTON_MMASK} + SDL_BUTTON_RMASK = SDL_PRESSED shl (SDL_BUTTON_RIGHT - 1); +{$EXTERNALSYM SDL_BUTTON_RMASK} + SDL_BUTTON_X1MASK = SDL_PRESSED shl (SDL_BUTTON_X1 - 1); +{$EXTERNALSYM SDL_BUTTON_X1MASK} + SDL_BUTTON_X2MASK = SDL_PRESSED shl (SDL_BUTTON_X2 - 1); +{$EXTERNALSYM SDL_BUTTON_X2MASK} + + // SDL_active.h constants + // The available application states + SDL_APPMOUSEFOCUS = $01; // The app has mouse coverage +{$EXTERNALSYM SDL_APPMOUSEFOCUS} + SDL_APPINPUTFOCUS = $02; // The app has input focus +{$EXTERNALSYM SDL_APPINPUTFOCUS} + SDL_APPACTIVE = $04; // The application is active +{$EXTERNALSYM SDL_APPACTIVE} + + // SDL_mutex.h constants + // Synchronization functions which can time out return this value + // they time out. + + SDL_MUTEX_TIMEDOUT = 1; +{$EXTERNALSYM SDL_MUTEX_TIMEDOUT} + + // This is the timeout value which corresponds to never time out + SDL_MUTEX_MAXWAIT = not Cardinal(0); +{$EXTERNALSYM SDL_MUTEX_MAXWAIT} + + {TSDL_GrabMode = ( + SDL_GRAB_QUERY, + SDL_GRAB_OFF, + SDL_GRAB_ON, + SDL_GRAB_FULLSCREEN ); // Used internally} + SDL_GRAB_QUERY = -1; + SDL_GRAB_OFF = 0; + SDL_GRAB_ON = 1; + //SDL_GRAB_FULLSCREEN // Used internally + +type + THandle = Cardinal; + //SDL_types.h types + // Basic data types + + SDL_Bool = (SDL_FALSE, SDL_TRUE); + TSDL_Bool = SDL_Bool; + + PUInt8Array = ^TUInt8Array; + PUInt8 = ^UInt8; + PPUInt8 = ^PUInt8; + UInt8 = Byte; +{$EXTERNALSYM UInt8} + TUInt8Array = array [0..MAXINT shr 1] of UInt8; + + PUInt16 = ^UInt16; + UInt16 = word; +{$EXTERNALSYM UInt16} + + PSInt8 = ^SInt8; + SInt8 = Shortint; +{$EXTERNALSYM SInt8} + + PSInt16 = ^SInt16; + SInt16 = smallint; +{$EXTERNALSYM SInt16} + + PUInt32 = ^UInt32; + UInt32 = Cardinal; +{$EXTERNALSYM UInt32} + + SInt32 = Integer; +{$EXTERNALSYM SInt32} + + PInt = ^Integer; + + PShortInt = ^ShortInt; + + PUInt64 = ^UInt64; + UInt64 = record + hi: UInt32; + lo: UInt32; + end; +{$EXTERNALSYM UInt64} + + PSInt64 = ^SInt64; + SInt64 = record + hi: UInt32; + lo: UInt32; + end; +{$EXTERNALSYM SInt64} + + TSDL_GrabMode = Integer; + + // SDL_error.h types + TSDL_errorcode = ( + SDL_ENOMEM, + SDL_EFREAD, + SDL_EFWRITE, + SDL_EFSEEK, + SDL_LASTERROR); + + SDL_errorcode = TSDL_errorcode; +{$EXTERNALSYM SDL_errorcode} + + TArg = record + case Byte of + 0: (value_ptr: Pointer); + (* #if 0 means: never + 1 : ( value_c : Byte ); + *) + 2: (value_i: Integer); + 3: (value_f: double); + 4: (buf: array[0..ERR_MAX_STRLEN - 1] of Byte); + end; + + PSDL_error = ^TSDL_error; + TSDL_error = record + { This is a numeric value corresponding to the current error } + error: Integer; + + { This is a key used to index into a language hashtable containing + internationalized versions of the SDL error messages. If the key + is not in the hashtable, or no hashtable is available, the key is + used directly as an error message format string. } + key: array[0..ERR_MAX_STRLEN - 1] of Byte; + + { These are the arguments for the error functions } + argc: Integer; + args: array[0..ERR_MAX_ARGS - 1] of TArg; + end; + + // SDL_rwops.h types + // This is the read/write operation structure -- very basic + // some helper types to handle the unions + // "packed" is only guessed + + TStdio = record + autoclose: Integer; + // FILE * is only defined in Kylix so we use a simple Pointer + fp: Pointer; + end; + + TMem = record + base: PUInt8; + here: PUInt8; + stop: PUInt8; + end; + + TUnknown = record + data1: Pointer; + end; + + // first declare the pointer type + PSDL_RWops = ^TSDL_RWops; + // now the pointer to function types + {$IFNDEF __GPC__} + TSeek = function( context: PSDL_RWops; offset: Integer; whence: Integer ): Integer; cdecl; + TRead = function( context: PSDL_RWops; Ptr: Pointer; size: Integer; maxnum : Integer ): Integer; cdecl; + TWrite = function( context: PSDL_RWops; Ptr: Pointer; size: Integer; num: Integer ): Integer; cdecl; + TClose = function( context: PSDL_RWops ): Integer; cdecl; + {$ELSE} + TSeek = function( context: PSDL_RWops; offset: Integer; whence: Integer ): Integer; + TRead = function( context: PSDL_RWops; Ptr: Pointer; size: Integer; maxnum : Integer ): Integer; + TWrite = function( context: PSDL_RWops; Ptr: Pointer; size: Integer; num: Integer ): Integer; + TClose = function( context: PSDL_RWops ): Integer; + {$ENDIF} + // the variant record itself + TSDL_RWops = record + seek: TSeek; + read: TRead; + write: TWrite; + close: TClose; + // a keyword as name is not allowed + type_: UInt32; + // be warned! structure alignment may arise at this point + case Integer of + 0: (stdio: TStdio); + 1: (mem: TMem); + 2: (unknown: TUnknown); + end; + + SDL_RWops = TSDL_RWops; +{$EXTERNALSYM SDL_RWops} + + + // SDL_timer.h types + // Function prototype for the timer callback function + {$IFNDEF __GPC__} + TSDL_TimerCallback = function( interval: UInt32 ): UInt32; cdecl; + {$ELSE} + TSDL_TimerCallback = function( interval: UInt32 ): UInt32; + {$ENDIF} + + { New timer API, supports multiple timers + Written by Stephane Peter <megastep@lokigames.com> } + + { Function prototype for the new timer callback function. + The callback function is passed the current timer interval and returns + the next timer interval. If the returned value is the same as the one + passed in, the periodic alarm continues, otherwise a new alarm is + scheduled. If the callback returns 0, the periodic alarm is cancelled. } + {$IFNDEF __GPC__} + TSDL_NewTimerCallback = function( interval: UInt32; param: Pointer ): UInt32; cdecl; + {$ELSE} + TSDL_NewTimerCallback = function( interval: UInt32; param: Pointer ): UInt32; + {$ENDIF} + + // Definition of the timer ID type + PSDL_TimerID = ^TSDL_TimerID; + TSDL_TimerID = record + interval: UInt32; + callback: TSDL_NewTimerCallback; + param: Pointer; + last_alarm: UInt32; + next: PSDL_TimerID; + end; + + {$IFNDEF __GPC__} + TSDL_AudioSpecCallback = procedure( userdata: Pointer; stream: PUInt8; len: Integer ); cdecl; + {$ELSE} + TSDL_AudioSpecCallback = procedure( userdata: Pointer; stream: PUInt8; len: Integer ); + {$ENDIF} + + // SDL_audio.h types + // The calculated values in this structure are calculated by SDL_OpenAudio() + PSDL_AudioSpec = ^TSDL_AudioSpec; + TSDL_AudioSpec = record + freq: Integer; // DSP frequency -- samples per second + format: UInt16; // Audio data format + channels: UInt8; // Number of channels: 1 mono, 2 stereo + silence: UInt8; // Audio buffer silence value (calculated) + samples: UInt16; // Audio buffer size in samples + padding: UInt16; // Necessary for some compile environments + size: UInt32; // Audio buffer size in bytes (calculated) + { This function is called when the audio device needs more data. + 'stream' is a pointer to the audio data buffer + 'len' is the length of that buffer in bytes. + Once the callback returns, the buffer will no longer be valid. + Stereo samples are stored in a LRLRLR ordering.} + callback: TSDL_AudioSpecCallback; + userdata: Pointer; + end; + + // A structure to hold a set of audio conversion filters and buffers + PSDL_AudioCVT = ^TSDL_AudioCVT; + + PSDL_AudioCVTFilter = ^TSDL_AudioCVTFilter; + TSDL_AudioCVTFilter = record + cvt: PSDL_AudioCVT; + format: UInt16; + end; + + PSDL_AudioCVTFilterArray = ^TSDL_AudioCVTFilterArray; + TSDL_AudioCVTFilterArray = array[0..9] of PSDL_AudioCVTFilter; + + TSDL_AudioCVT = record + needed: Integer; // Set to 1 if conversion possible + src_format: UInt16; // Source audio format + dst_format: UInt16; // Target audio format + rate_incr: double; // Rate conversion increment + buf: PUInt8; // Buffer to hold entire audio data + len: Integer; // Length of original audio buffer + len_cvt: Integer; // Length of converted audio buffer + len_mult: Integer; // buffer must be len*len_mult big + len_ratio: double; // Given len, final size is len*len_ratio + filters: TSDL_AudioCVTFilterArray; + filter_index: Integer; // Current audio conversion function + end; + + TSDL_Audiostatus = ( + SDL_AUDIO_STOPPED, + SDL_AUDIO_PLAYING, + SDL_AUDIO_PAUSED + ); + + // SDL_cdrom.h types + TSDL_CDStatus = ( + CD_ERROR, + CD_TRAYEMPTY, + CD_STOPPED, + CD_PLAYING, + CD_PAUSED ); + + PSDL_CDTrack = ^TSDL_CDTrack; + TSDL_CDTrack = record + id: UInt8; // Track number + type_: UInt8; // Data or audio track + unused: UInt16; + length: UInt32; // Length, in frames, of this track + offset: UInt32; // Offset, in frames, from start of disk + end; + + // This structure is only current as of the last call to SDL_CDStatus() + PSDL_CD = ^TSDL_CD; + TSDL_CD = record + id: Integer; // Private drive identifier + status: TSDL_CDStatus; // Current drive status + + // The rest of this structure is only valid if there's a CD in drive + numtracks: Integer; // Number of tracks on disk + cur_track: Integer; // Current track position + cur_frame: Integer; // Current frame offset within current track + track: array[0..SDL_MAX_TRACKS] of TSDL_CDTrack; + end; + + //SDL_joystick.h types + PTransAxis = ^TTransAxis; + TTransAxis = record + offset: Integer; + scale: single; + end; + + // The private structure used to keep track of a joystick + PJoystick_hwdata = ^TJoystick_hwdata; + TJoystick_hwdata = record + // joystick ID + id: Integer; + // values used to translate device-specific coordinates into SDL-standard ranges + transaxis: array[0..5] of TTransAxis; + end; + + PBallDelta = ^TBallDelta; + TBallDelta = record + dx: Integer; + dy: Integer; + end; // Current ball motion deltas + + // The SDL joystick structure + PSDL_Joystick = ^TSDL_Joystick; + TSDL_Joystick = record + index: UInt8; // Device index + name: PChar; // Joystick name - system dependent + + naxes: Integer; // Number of axis controls on the joystick + axes: PUInt16; // Current axis states + + nhats: Integer; // Number of hats on the joystick + hats: PUInt8; // Current hat states + + nballs: Integer; // Number of trackballs on the joystick + balls: PBallDelta; // Current ball motion deltas + + nbuttons: Integer; // Number of buttons on the joystick + buttons: PUInt8; // Current button states + + hwdata: PJoystick_hwdata; // Driver dependent information + + ref_count: Integer; // Reference count for multiple opens + end; + + // SDL_verion.h types + PSDL_version = ^TSDL_version; + TSDL_version = record + major: UInt8; + minor: UInt8; + patch: UInt8; + end; + + // SDL_keyboard.h types + TSDLKey = LongWord; + + TSDLMod = LongWord; + + PSDL_KeySym = ^TSDL_KeySym; + TSDL_KeySym = record + scancode: UInt8; // hardware specific scancode + sym: TSDLKey; // SDL virtual keysym + modifier: TSDLMod; // current key modifiers + unicode: UInt16; // translated character + end; + + // SDL_events.h types + {Checks the event queue for messages and optionally returns them. + If 'action' is SDL_ADDEVENT, up to 'numevents' events will be added to + the back of the event queue. + If 'action' is SDL_PEEKEVENT, up to 'numevents' events at the front + of the event queue, matching 'mask', will be returned and will not + be removed from the queue. + If 'action' is SDL_GETEVENT, up to 'numevents' events at the front + of the event queue, matching 'mask', will be returned and will be + removed from the queue. + This function returns the number of events actually stored, or -1 + if there was an error. This function is thread-safe. } + + TSDL_EventAction = (SDL_ADDEVENT, SDL_PEEKEVENT, SDL_GETEVENT); + + // Application visibility event structure + TSDL_ActiveEvent = record + type_: UInt8; // SDL_ACTIVEEVENT + gain: UInt8; // Whether given states were gained or lost (1/0) + state: UInt8; // A mask of the focus states + end; + + // Keyboard event structure + TSDL_KeyboardEvent = record + type_: UInt8; // SDL_KEYDOWN or SDL_KEYUP + which: UInt8; // The keyboard device index + state: UInt8; // SDL_PRESSED or SDL_RELEASED + keysym: TSDL_KeySym; + end; + + // Mouse motion event structure + TSDL_MouseMotionEvent = record + type_: UInt8; // SDL_MOUSEMOTION + which: UInt8; // The mouse device index + state: UInt8; // The current button state + x, y: UInt16; // The X/Y coordinates of the mouse + xrel: SInt16; // The relative motion in the X direction + yrel: SInt16; // The relative motion in the Y direction + end; + + // Mouse button event structure + TSDL_MouseButtonEvent = record + type_: UInt8; // SDL_MOUSEBUTTONDOWN or SDL_MOUSEBUTTONUP + which: UInt8; // The mouse device index + button: UInt8; // The mouse button index + state: UInt8; // SDL_PRESSED or SDL_RELEASED + x: UInt16; // The X coordinates of the mouse at press time + y: UInt16; // The Y coordinates of the mouse at press time + end; + + // Joystick axis motion event structure + TSDL_JoyAxisEvent = record + type_: UInt8; // SDL_JOYAXISMOTION + which: UInt8; // The joystick device index + axis: UInt8; // The joystick axis index + value: SInt16; // The axis value (range: -32768 to 32767) + end; + + // Joystick trackball motion event structure + TSDL_JoyBallEvent = record + type_: UInt8; // SDL_JOYAVBALLMOTION + which: UInt8; // The joystick device index + ball: UInt8; // The joystick trackball index + xrel: SInt16; // The relative motion in the X direction + yrel: SInt16; // The relative motion in the Y direction + end; + + // Joystick hat position change event structure + TSDL_JoyHatEvent = record + type_: UInt8; // SDL_JOYHATMOTION */ + which: UInt8; // The joystick device index */ + hat: UInt8; // The joystick hat index */ + value: UInt8; { The hat position value: + 8 1 2 + 7 0 3 + 6 5 4 + + Note that zero means the POV is centered. } + + end; + + // Joystick button event structure + TSDL_JoyButtonEvent = record + type_: UInt8; // SDL_JOYBUTTONDOWN or SDL_JOYBUTTONUP + which: UInt8; // The joystick device index + button: UInt8; // The joystick button index + state: UInt8; // SDL_PRESSED or SDL_RELEASED + end; + + { The "window resized" event + When you get this event, you are responsible for setting a new video + mode with the new width and height. } + TSDL_ResizeEvent = record + type_: UInt8; // SDL_VIDEORESIZE + w: Integer; // New width + h: Integer; // New height + end; + + // The "quit requested" event + PSDL_QuitEvent = ^TSDL_QuitEvent; + TSDL_QuitEvent = record + type_: UInt8; + end; + + // A user-defined event type + PSDL_UserEvent = ^TSDL_UserEvent; + TSDL_UserEvent = record + type_: UInt8; // SDL_USEREVENT through SDL_NUMEVENTS-1 + code: Integer; // User defined event code */ + data1: Pointer; // User defined data pointer */ + data2: Pointer; // User defined data pointer */ + end; + + // The "screen redraw" event + PSDL_ExposeEvent = ^TSDL_ExposeEvent; + TSDL_ExposeEvent = record + type_ : Uint8; // SDL_VIDEOEXPOSE + end; + + {$IFDEF Unix} + //These are the various supported subsystems under UNIX + TSDL_SysWm = ( SDL_SYSWM_X11 ) ; + {$ENDIF} + +// The windows custom event structure +{$IFDEF WINDOWS} + PSDL_SysWMmsg = ^TSDL_SysWMmsg; + TSDL_SysWMmsg = record + version: TSDL_version; + h_wnd: HWND; // The window for the message + msg: UInt; // The type of message + w_Param: WPARAM; // WORD message parameter + lParam: LPARAM; // LONG message parameter + end; +{$ELSE} + +{$IFDEF Unix} +{ The Linux custom event structure } + PSDL_SysWMmsg = ^TSDL_SysWMmsg; + TSDL_SysWMmsg = record + version : TSDL_version; + subsystem : TSDL_SysWm; + {$IFDEF FPC} + {$IFNDEF GP2X} + {$IFNDEF DARWIN} + {$IFNDEF SKYOS} + event : TXEvent; + {$ENDIF} + {$ENDIF} + {$ENDIF} + {$ELSE} + event : XEvent; + {$ENDIF} + end; +{$ELSE} +{ The generic custom event structure } + PSDL_SysWMmsg = ^TSDL_SysWMmsg; + TSDL_SysWMmsg = record + version: TSDL_version; + data: Integer; + end; +{$ENDIF} + +{$ENDIF} + +// The Windows custom window manager information structure +{$IFDEF WINDOWS} + PSDL_SysWMinfo = ^TSDL_SysWMinfo; + TSDL_SysWMinfo = record + version : TSDL_version; + window : HWnd; // The display window + end; +{$ELSE} + +// The Linux custom window manager information structure +{$IFDEF Unix} + {$IFNDEF GP2X} + {$IFNDEF DARWIN} + {$IFNDEF SKYOS} + TX11 = record + display : PDisplay; // The X11 display + window : TWindow ; // The X11 display window */ + {* These locking functions should be called around + any X11 functions using the display variable. + They lock the event thread, so should not be + called around event functions or from event filters. + *} + lock_func : Pointer; + unlock_func : Pointer; + + // Introduced in SDL 1.0.2 + fswindow : TWindow ; // The X11 fullscreen window */ + wmwindow : TWindow ; // The X11 managed input window */ + end; + {$ENDIF} + {$ENDIF} + {$ENDIF} + + PSDL_SysWMinfo = ^TSDL_SysWMinfo; + TSDL_SysWMinfo = record + version : TSDL_version ; + subsystem : TSDL_SysWm; + {$IFNDEF GP2X} + {$IFNDEF DARWIN} + {$IFNDEF SKYOS} + X11 : TX11; + {$ENDIF} + {$ENDIF} + {$ENDIF} + end; +{$ELSE} + // The generic custom window manager information structure + PSDL_SysWMinfo = ^TSDL_SysWMinfo; + TSDL_SysWMinfo = record + version : TSDL_version ; + data : integer; + end; +{$ENDIF} + +{$ENDIF} + + PSDL_SysWMEvent = ^TSDL_SysWMEvent; + TSDL_SysWMEvent = record + type_: UInt8; + msg: PSDL_SysWMmsg; + end; + + PSDL_Event = ^TSDL_Event; + TSDL_Event = record + case UInt8 of + SDL_NOEVENT: (type_: byte); + SDL_ACTIVEEVENT: (active: TSDL_ActiveEvent); + SDL_KEYDOWN, SDL_KEYUP: (key: TSDL_KeyboardEvent); + SDL_MOUSEMOTION: (motion: TSDL_MouseMotionEvent); + SDL_MOUSEBUTTONDOWN, SDL_MOUSEBUTTONUP: (button: TSDL_MouseButtonEvent ); + SDL_JOYAXISMOTION: (jaxis: TSDL_JoyAxisEvent ); + SDL_JOYBALLMOTION: (jball: TSDL_JoyBallEvent ); + SDL_JOYHATMOTION: (jhat: TSDL_JoyHatEvent ); + SDL_JOYBUTTONDOWN, SDL_JOYBUTTONUP: (jbutton: TSDL_JoyButtonEvent ); + SDL_VIDEORESIZE: (resize: TSDL_ResizeEvent ); + SDL_QUITEV: (quit: TSDL_QuitEvent ); + SDL_USEREVENT : ( user : TSDL_UserEvent ); + SDL_SYSWMEVENT: (syswm: TSDL_SysWMEvent ); + end; + + +{ This function sets up a filter to process all events before they + change internal state and are posted to the internal event queue. + + The filter is protypted as: } + {$IFNDEF __GPC__} + TSDL_EventFilter = function( event : PSDL_Event ): Integer; cdecl; + {$ELSE} + TSDL_EventFilter = function( event : PSDL_Event ): Integer; + {$ENDIF} + + // SDL_video.h types + // Useful data types + PPSDL_Rect = ^PSDL_Rect; + PSDL_Rect = ^TSDL_Rect; + TSDL_Rect = record + x, y: SInt16; + w, h: UInt16; + end; + + SDL_Rect = TSDL_Rect; +{$EXTERNALSYM SDL_Rect} + + PSDL_Color = ^TSDL_Color; + TSDL_Color = record + r: UInt8; + g: UInt8; + b: UInt8; + unused: UInt8; + end; + + PSDL_ColorArray = ^TSDL_ColorArray; + TSDL_ColorArray = array[0..65000] of TSDL_Color; + + PSDL_Palette = ^TSDL_Palette; + TSDL_Palette = record + ncolors: Integer; + colors: PSDL_ColorArray; + end; + + // Everything in the pixel format structure is read-only + PSDL_PixelFormat = ^TSDL_PixelFormat; + TSDL_PixelFormat = record + palette: PSDL_Palette; + BitsPerPixel: UInt8; + BytesPerPixel: UInt8; + Rloss: UInt8; + Gloss: UInt8; + Bloss: UInt8; + Aloss: UInt8; + Rshift: UInt8; + Gshift: UInt8; + Bshift: UInt8; + Ashift: UInt8; + RMask: UInt32; + GMask: UInt32; + BMask: UInt32; + AMask: UInt32; + colorkey: UInt32; // RGB color key information + alpha: UInt8; // Alpha value information (per-surface alpha) + end; + +{$IFDEF WINDOWS} + {PPrivate_hwdata = ^TPrivate_hwdata; + TPrivate_hwdata = record + dd_surface : IDIRECTDRAWSURFACE3; + dd_writebuf : IDIRECTDRAWSURFACE3; + end;} + {ELSE} +{$ENDIF} + + // The structure passed to the low level blit functions + PSDL_BlitInfo = ^TSDL_BlitInfo; + TSDL_BlitInfo = record + s_pixels: PUInt8; + s_width: Integer; + s_height: Integer; + s_skip: Integer; + d_pixels: PUInt8; + d_width: Integer; + d_height: Integer; + d_skip: Integer; + aux_data: Pointer; + src: PSDL_PixelFormat; + table: PUInt8; + dst: PSDL_PixelFormat; + end; + + // typedef for private surface blitting functions + PSDL_Surface = ^TSDL_Surface; + + {$IFNDEF __GPC__} + TSDL_Blit = function( src: PSDL_Surface; srcrect: PSDL_Rect; dst: PSDL_Surface; dstrect: PSDL_Rect ): Integer; cdecl; + {$ELSE} + TSDL_Blit = function( src: PSDL_Surface; srcrect: PSDL_Rect; dst: PSDL_Surface; dstrect: PSDL_Rect ): Integer; + {$ENDIF} + + // The type definition for the low level blit functions + //TSDL_LoBlit = procedure( info : PSDL_BlitInfo ); cdecl; + + // This is the private info structure for software accelerated blits + {PPrivate_swaccel = ^TPrivate_swaccel; + TPrivate_swaccel = record + blit : TSDL_LoBlit; + aux_data : Pointer; + end;} + + // Blit mapping definition + {PSDL_BlitMap = ^TSDL_BlitMap; + TSDL_BlitMap = record + dst : PSDL_Surface; + identity : Integer; + table : PUInt8; + hw_blit : TSDL_Blit; + sw_blit : TSDL_Blit; + hw_data : PPrivate_hwaccel; + sw_data : PPrivate_swaccel; + + // the version count matches the destination; mismatch indicates an invalid mapping + format_version : Cardinal; + end;} + + TSDL_Surface = record + flags: UInt32; // Read-only + format: PSDL_PixelFormat; // Read-only + w, h: Integer; // Read-only + pitch: UInt16; // Read-only + pixels: Pointer; // Read-write + offset: Integer; // Private + hwdata: Pointer; //TPrivate_hwdata; Hardware-specific surface info + + // clipping information: + clip_rect: TSDL_Rect; // Read-only + unused1: UInt32; // for binary compatibility + // Allow recursive locks + locked: UInt32; // Private + // info for fast blit mapping to other surfaces + Blitmap: Pointer; // PSDL_BlitMap; // Private + // format version, bumped at every change to invalidate blit maps + format_version: Cardinal; // Private + refcount: Integer; + end; + + // Useful for determining the video hardware capabilities + PSDL_VideoInfo = ^TSDL_VideoInfo; + TSDL_VideoInfo = record + hw_available: UInt8; // Hardware and WindowManager flags in first 2 bits ( see below ) + {hw_available: 1; // Can you create hardware surfaces + wm_available: 1; // Can you talk to a window manager? + UnusedBits1: 6;} + blit_hw: UInt8; // Blit Hardware flags. See below for which bits do what + {UnusedBits2: 1; + blit_hw: 1; // Flag:UInt32 Accelerated blits HW --> HW + blit_hw_CC: 1; // Flag:UInt32 Accelerated blits with Colorkey + blit_hw_A: 1; // Flag:UInt32 Accelerated blits with Alpha + blit_sw: 1; // Flag:UInt32 Accelerated blits SW --> HW + blit_sw_CC: 1; // Flag:UInt32 Accelerated blits with Colorkey + blit_sw_A: 1; // Flag:UInt32 Accelerated blits with Alpha + blit_fill: 1; // Flag:UInt32 Accelerated color fill} + UnusedBits3: UInt8; // Unused at this point + video_mem: UInt32; // The total amount of video memory (in K) + vfmt: PSDL_PixelFormat; // Value: The format of the video surface + current_w : SInt32; // Value: The current video mode width + current_h : SInt32; // Value: The current video mode height + end; + + // The YUV hardware video overlay + PSDL_Overlay = ^TSDL_Overlay; + TSDL_Overlay = record + format: UInt32; // Overlay format + w, h: Integer; // Width and height of overlay + planes: Integer; // Number of planes in the overlay. Usually either 1 or 3 + pitches: PUInt16; + // An array of pitches, one for each plane. Pitch is the length of a row in bytes. + pixels: PPUInt8; + // An array of pointers to the data of each plane. The overlay should be locked before these pointers are used. + hw_overlay: UInt32; + // This will be set to 1 if the overlay is hardware accelerated. + end; + + // Public enumeration for setting the OpenGL window attributes. + TSDL_GLAttr = ( + SDL_GL_RED_SIZE, + SDL_GL_GREEN_SIZE, + SDL_GL_BLUE_SIZE, + SDL_GL_ALPHA_SIZE, + SDL_GL_BUFFER_SIZE, + SDL_GL_DOUBLEBUFFER, + SDL_GL_DEPTH_SIZE, + SDL_GL_STENCIL_SIZE, + SDL_GL_ACCUM_RED_SIZE, + SDL_GL_ACCUM_GREEN_SIZE, + SDL_GL_ACCUM_BLUE_SIZE, + SDL_GL_ACCUM_ALPHA_SIZE, + SDL_GL_STEREO, + SDL_GL_MULTISAMPLEBUFFERS, + SDL_GL_MULTISAMPLESAMPLES, + SDL_GL_ACCELERATED_VISUAL, + SDL_GL_SWAP_CONTROL); + + + + PSDL_Cursor = ^TSDL_Cursor; + TSDL_Cursor = record + area: TSDL_Rect; // The area of the mouse cursor + hot_x, hot_y: SInt16; // The "tip" of the cursor + data: PUInt8; // B/W cursor data + mask: PUInt8; // B/W cursor mask + save: array[1..2] of PUInt8; // Place to save cursor area + wm_cursor: Pointer; // Window-manager cursor + end; + +// SDL_mutex.h types + +{$IFDEF WINDOWS} + PSDL_Mutex = ^TSDL_Mutex; + TSDL_Mutex = record + id: THANDLE; + end; +{$ENDIF} + +{$IFDEF Unix} + PSDL_Mutex = ^TSDL_Mutex; + TSDL_mutex = record + id: pthread_mutex_t; +{$IFDEF PTHREAD_NO_RECURSIVE_MUTEX} + recursive: Integer; + owner: pthread_t; +{$ENDIF} + end; +{$ENDIF} + +{$IFDEF NDS} + PSDL_mutex = ^TSDL_Mutex; + TSDL_Mutex = record + recursive: Integer; + Owner: UInt32; + sem: PSDL_sem; + end; +{$ENDIF} + +{$IFDEF __MACH__} + {$define USE_NAMED_SEMAPHORES} + // Broken sem_getvalue() in MacOS X Public Beta */ + {$define BROKEN_SEMGETVALUE} +{$ENDIF} + +PSDL_semaphore = ^TSDL_semaphore; +{$IFDEF WINDOWS} + // WINDOWS or Machintosh + TSDL_semaphore = record + id: THANDLE; + count: UInt32; + end; +{$ELSE} + {$IFDEF FPC} + // This should be semaphore.h + __sem_lock_t = {packed} record { Not in header file - anonymous } + status: Longint; + spinlock: Integer; + end; + + sem_t = {packed} record + __sem_lock: __sem_lock_t; + __sem_value: Integer; + __sem_waiting: longint ; {_pthread_queue;} + end; + {$ENDIF} + + TSDL_semaphore = record + sem: Pointer; //PSem_t; + {$IFNDEF USE_NAMED_SEMAPHORES} + sem_data: Sem_t; + {$ENDIF} + + {$IFDEF BROKEN_SEMGETVALUE} + { This is a little hack for MacOS X - + It's not thread-safe, but it's better than nothing } + sem_value: Integer; + {$ENDIF} + end; +{$ENDIF} + + PSDL_Sem = ^TSDL_Sem; + TSDL_Sem = TSDL_Semaphore; + + PSDL_Cond = ^TSDL_Cond; + TSDL_Cond = record +{$IFDEF Unix} + cond: pthread_cond_t; +{$ELSE} + // Generic Cond structure + lock: PSDL_mutex; + waiting: Integer; + signals: Integer; + wait_sem: PSDL_Sem; + wait_done: PSDL_Sem; +{$ENDIF} + end; + + // SDL_thread.h types +{$IFDEF WINDOWS} + TSYS_ThreadHandle = THandle; +{$ENDIF} + +{$IFDEF Unix} + TSYS_ThreadHandle = pthread_t; +{$ENDIF} + +{$IFDEF NDS} + TSYS_ThreadHandle = Integer; +{$ENDIF} + + { This is the system-independent thread info structure } + PSDL_Thread = ^TSDL_Thread; + TSDL_Thread = record + threadid: UInt32; + handle: TSYS_ThreadHandle; + status: Integer; + errbuf: TSDL_Error; + data: Pointer; + end; + + // Helper Types + + // Keyboard State Array ( See demos for how to use ) + PKeyStateArr = ^TKeyStateArr; + TKeyStateArr = array[0..65000] of UInt8; + + // Types required so we don't need to use Windows.pas + PInteger = ^Integer; + PByte = ^Byte; + PWord = ^Word; + PLongWord = ^Longword; + + // General arrays + PByteArray = ^TByteArray; + TByteArray = array[0..32767] of Byte; + + PWordArray = ^TWordArray; + TWordArray = array[0..16383] of Word; + + PPoint = ^TPoint; + {$IFDEF HAS_TYPES} + TPoint = Types.TPoint; + {$ELSE} + {$IFDEF WINDOWS} + {$IFDEF __GPC__} + TPoint = wintypes.TPoint; + {$ELSE} + TPoint = Windows.TPoint; + {$ENDIF} + {$ELSE} + //Can't define TPoint : neither Types nor Windows unit available. + {$ENDIF} + {$ENDIF} + + PRect = ^TRect; + {$IFDEF HAS_TYPES} + TRect = Types.TRect; + {$ELSE} + {$IFDEF WINDOWS} + {$IFDEF __GPC__} + TRect = wintypes.TRect; + {$ELSE} + TRect = Windows.TRect; + {$ENDIF} + {$ELSE} + //Can't define TRect: neither Types nor Windows unit available. + {$ENDIF} + {$ENDIF} + + { Generic procedure pointer } + TProcedure = procedure; + +{------------------------------------------------------------------------------} +{ initialization } +{------------------------------------------------------------------------------} + +{ This function loads the SDL dynamically linked library and initializes + the subsystems specified by 'flags' (and those satisfying dependencies) + Unless the SDL_INIT_NOPARACHUTE flag is set, it will install cleanup + signal handlers for some commonly ignored fatal signals (like SIGSEGV) } + +function SDL_Init( flags : UInt32 ) : Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_Init'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_Init} + +// This function initializes specific SDL subsystems +function SDL_InitSubSystem( flags : UInt32 ) : Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_InitSubSystem'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_InitSubSystem} + +// This function cleans up specific SDL subsystems +procedure SDL_QuitSubSystem( flags : UInt32 ); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_QuitSubSystem'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_QuitSubSystem} + +{ This function returns mask of the specified subsystems which have + been initialized. + If 'flags' is 0, it returns a mask of all initialized subsystems. } + +function SDL_WasInit( flags : UInt32 ): UInt32; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_WasInit'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_WasInit} + +{ This function cleans up all initialized subsystems and unloads the + dynamically linked library. You should call it upon all exit conditions. } +procedure SDL_Quit; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_Quit'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_Quit} + +{$IFDEF WINDOWS} +// This should be called from your WinMain() function, if any +function SDL_RegisterApp(name: PChar; style: UInt32; h_Inst: Pointer): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_RegisterApp'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_RegisterApp} +{$ENDIF} + +{$IFDEF __MACH__} +// This should be called from your main() function, if any +procedure SDL_InitQuickDraw( the_qd: QDGlobals ); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_InitQuickDraw'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_InitQuickDraw} +{$ENDIF} + + +{------------------------------------------------------------------------------} +{ types } +{------------------------------------------------------------------------------} +// The number of elements in a table +function SDL_TableSize( table: PChar ): Integer; +{$EXTERNALSYM SDL_TABLESIZE} + + +{------------------------------------------------------------------------------} +{ error-handling } +{------------------------------------------------------------------------------} +// Public functions +function SDL_GetError: PChar; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetError'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetError} +procedure SDL_SetError(fmt: PChar); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SetError'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SetError} +procedure SDL_ClearError; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_ClearError'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_ClearError} + +{$IFNDEF WINDOWS} +procedure SDL_Error(Code: TSDL_errorcode); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_Error'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_Error} +{$ENDIF} + +// Private error message function - used internally +procedure SDL_OutOfMemory; + +{------------------------------------------------------------------------------} +{ io handling } +{------------------------------------------------------------------------------} +// Functions to create SDL_RWops structures from various data sources + +function SDL_RWFromFile(filename, mode: PChar): PSDL_RWops; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_RWFromFile'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_RWFromFile} +procedure SDL_FreeRW(area: PSDL_RWops); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_FreeRW'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_FreeRW} + +//fp is FILE *fp ??? +function SDL_RWFromFP(fp: Pointer; autoclose: Integer): PSDL_RWops; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_RWFromFP'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_RWFromFP} +function SDL_RWFromMem(mem: Pointer; size: Integer): PSDL_RWops; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_RWFromMem'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_RWFromMem} +function SDL_RWFromConstMem(const mem: Pointer; size: Integer) : PSDL_RWops; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_RWFromConstMem'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_RWFromConstMem} +function SDL_AllocRW: PSDL_RWops; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_AllocRW'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_AllocRW} + +function SDL_RWSeek(context: PSDL_RWops; offset: Integer; whence: Integer) : Integer; +{$EXTERNALSYM SDL_RWSeek} +function SDL_RWTell(context: PSDL_RWops): Integer; +{$EXTERNALSYM SDL_RWTell} +function SDL_RWRead(context: PSDL_RWops; ptr: Pointer; size: Integer; n : Integer): Integer; +{$EXTERNALSYM SDL_RWRead} +function SDL_RWWrite(context: PSDL_RWops; ptr: Pointer; size: Integer; n : Integer): Integer; +{$EXTERNALSYM SDL_RWWrite} +function SDL_RWClose(context: PSDL_RWops): Integer; +{$EXTERNALSYM SDL_RWClose} + +{------------------------------------------------------------------------------} +{ time-handling } +{------------------------------------------------------------------------------} + +{ Get the number of milliseconds since the SDL library initialization. } +{ Note that this value wraps if the program runs for more than ~49 days. } +function SDL_GetTicks: UInt32; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetTicks'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetTicks} + +// Wait a specified number of milliseconds before returning +procedure SDL_Delay(msec: UInt32); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_Delay'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_Delay} + +{ Add a new timer to the pool of timers already running. } +{ Returns a timer ID, or NULL when an error occurs. } +function SDL_AddTimer(interval: UInt32; callback: TSDL_NewTimerCallback; param : Pointer): PSDL_TimerID; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_AddTimer'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_AddTimer} + +{ Remove one of the multiple timers knowing its ID. } +{ Returns a boolean value indicating success. } +function SDL_RemoveTimer(t: PSDL_TimerID): TSDL_Bool; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_RemoveTimer'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_RemoveTimer} + +function SDL_SetTimer(interval: UInt32; callback: TSDL_TimerCallback): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SetTimer'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SetTimer} + +{------------------------------------------------------------------------------} +{ audio-routines } +{------------------------------------------------------------------------------} + +{ These functions are used internally, and should not be used unless you + have a specific need to specify the audio driver you want to use. + You should normally use SDL_Init() or SDL_InitSubSystem(). } + +function SDL_AudioInit(driver_name: PChar): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_AudioInit'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_AudioInit} +procedure SDL_AudioQuit; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_AudioQuit'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_AudioQuit} + +{ This function fills the given character buffer with the name of the + current audio driver, and returns a Pointer to it if the audio driver has + been initialized. It returns NULL if no driver has been initialized. } + +function SDL_AudioDriverName(namebuf: PChar; maxlen: Integer): PChar; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_AudioDriverName'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_AudioDriverName} + +{ This function opens the audio device with the desired parameters, and + returns 0 if successful, placing the actual hardware parameters in the + structure pointed to by 'obtained'. If 'obtained' is NULL, the audio + data passed to the callback function will be guaranteed to be in the + requested format, and will be automatically converted to the hardware + audio format if necessary. This function returns -1 if it failed + to open the audio device, or couldn't set up the audio thread. + + When filling in the desired audio spec structure, + 'desired->freq' should be the desired audio frequency in samples-per-second. + 'desired->format' should be the desired audio format. + 'desired->samples' is the desired size of the audio buffer, in samples. + This number should be a power of two, and may be adjusted by the audio + driver to a value more suitable for the hardware. Good values seem to + range between 512 and 8096 inclusive, depending on the application and + CPU speed. Smaller values yield faster response time, but can lead + to underflow if the application is doing heavy processing and cannot + fill the audio buffer in time. A stereo sample consists of both right + and left channels in LR ordering. + Note that the number of samples is directly related to time by the + following formula: ms = (samples*1000)/freq + 'desired->size' is the size in bytes of the audio buffer, and is + calculated by SDL_OpenAudio(). + 'desired->silence' is the value used to set the buffer to silence, + and is calculated by SDL_OpenAudio(). + 'desired->callback' should be set to a function that will be called + when the audio device is ready for more data. It is passed a pointer + to the audio buffer, and the length in bytes of the audio buffer. + This function usually runs in a separate thread, and so you should + protect data structures that it accesses by calling SDL_LockAudio() + and SDL_UnlockAudio() in your code. + 'desired->userdata' is passed as the first parameter to your callback + function. + + The audio device starts out playing silence when it's opened, and should + be enabled for playing by calling SDL_PauseAudio(0) when you are ready + for your audio callback function to be called. Since the audio driver + may modify the requested size of the audio buffer, you should allocate + any local mixing buffers after you open the audio device. } + +function SDL_OpenAudio(desired, obtained: PSDL_AudioSpec): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_OpenAudio'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_OpenAudio} + +{ Get the current audio state: } +function SDL_GetAudioStatus: TSDL_Audiostatus; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetAudioStatus'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetAudioStatus} + +{ This function pauses and unpauses the audio callback processing. + It should be called with a parameter of 0 after opening the audio + device to start playing sound. This is so you can safely initialize + data for your callback function after opening the audio device. + Silence will be written to the audio device during the pause. } + +procedure SDL_PauseAudio(pause_on: Integer); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_PauseAudio'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_PauseAudio} + +{ This function loads a WAVE from the data source, automatically freeing + that source if 'freesrc' is non-zero. For example, to load a WAVE file, + you could do: + SDL_LoadWAV_RW(SDL_RWFromFile("sample.wav", "rb"), 1, ...); + + If this function succeeds, it returns the given SDL_AudioSpec, + filled with the audio data format of the wave data, and sets + 'audio_buf' to a malloc()'d buffer containing the audio data, + and sets 'audio_len' to the length of that audio buffer, in bytes. + You need to free the audio buffer with SDL_FreeWAV() when you are + done with it. + + This function returns NULL and sets the SDL error message if the + wave file cannot be opened, uses an unknown data format, or is + corrupt. Currently raw and MS-ADPCM WAVE files are supported. } + +function SDL_LoadWAV_RW(src: PSDL_RWops; freesrc: Integer; spec: + PSDL_AudioSpec; audio_buf: PUInt8; audiolen: PUInt32): PSDL_AudioSpec; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_LoadWAV_RW'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_LoadWAV_RW} + +// Compatibility convenience function -- loads a WAV from a file +function SDL_LoadWAV(filename: PChar; spec: PSDL_AudioSpec; audio_buf: + PUInt8; audiolen: PUInt32): PSDL_AudioSpec; +{$EXTERNALSYM SDL_LoadWAV} + +{ This function frees data previously allocated with SDL_LoadWAV_RW() } + +procedure SDL_FreeWAV(audio_buf: PUInt8); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_FreeWAV'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_FreeWAV} + +{ This function takes a source format and rate and a destination format + and rate, and initializes the 'cvt' structure with information needed + by SDL_ConvertAudio() to convert a buffer of audio data from one format + to the other. + This function returns 0, or -1 if there was an error. } +function SDL_BuildAudioCVT(cvt: PSDL_AudioCVT; src_format: UInt16; + src_channels: UInt8; src_rate: Integer; dst_format: UInt16; dst_channels: UInt8; + dst_rate: Integer): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_BuildAudioCVT'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_BuildAudioCVT} + +{ Once you have initialized the 'cvt' structure using SDL_BuildAudioCVT(), + created an audio buffer cvt->buf, and filled it with cvt->len bytes of + audio data in the source format, this function will convert it in-place + to the desired format. + The data conversion may expand the size of the audio data, so the buffer + cvt->buf should be allocated after the cvt structure is initialized by + SDL_BuildAudioCVT(), and should be cvt->len*cvt->len_mult bytes long. } +function SDL_ConvertAudio(cvt: PSDL_AudioCVT): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_ConvertAudio'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_ConvertAudio} + +{ This takes two audio buffers of the playing audio format and mixes + them, performing addition, volume adjustment, and overflow clipping. + The volume ranges from 0 - 128, and should be set to SDL_MIX_MAXVOLUME + for full audio volume. Note this does not change hardware volume. + This is provided for convenience -- you can mix your own audio data. } + +procedure SDL_MixAudio(dst, src: PUInt8; len: UInt32; volume: Integer); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_MixAudio'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_MixAudio} + +{ The lock manipulated by these functions protects the callback function. + During a LockAudio/UnlockAudio pair, you can be guaranteed that the + callback function is not running. Do not call these from the callback + function or you will cause deadlock. } +procedure SDL_LockAudio; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_LockAudio'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_LockAudio} +procedure SDL_UnlockAudio; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_UnlockAudio'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_UnlockAudio} + +{ This function shuts down audio processing and closes the audio device. } + +procedure SDL_CloseAudio; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CloseAudio'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CloseAudio} + +{------------------------------------------------------------------------------} +{ CD-routines } +{------------------------------------------------------------------------------} + +{ Returns the number of CD-ROM drives on the system, or -1 if + SDL_Init() has not been called with the SDL_INIT_CDROM flag. } + +function SDL_CDNumDrives: Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CDNumDrives'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CDNumDrives} + +{ Returns a human-readable, system-dependent identifier for the CD-ROM. + Example: + "/dev/cdrom" + "E:" + "/dev/disk/ide/1/master" } + +function SDL_CDName(drive: Integer): PChar; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CDName'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CDName} + +{ Opens a CD-ROM drive for access. It returns a drive handle on success, + or NULL if the drive was invalid or busy. This newly opened CD-ROM + becomes the default CD used when other CD functions are passed a NULL + CD-ROM handle. + Drives are numbered starting with 0. Drive 0 is the system default CD-ROM. } + +function SDL_CDOpen(drive: Integer): PSDL_CD; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CDOpen'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CDOpen} + +{ This function returns the current status of the given drive. + If the drive has a CD in it, the table of contents of the CD and current + play position of the CD will be stored in the SDL_CD structure. } + +function SDL_CDStatus(cdrom: PSDL_CD): TSDL_CDStatus; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CDStatus'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CDStatus} + +{ Play the given CD starting at 'start_track' and 'start_frame' for 'ntracks' + tracks and 'nframes' frames. If both 'ntrack' and 'nframe' are 0, play + until the end of the CD. This function will skip data tracks. + This function should only be called after calling SDL_CDStatus() to + get track information about the CD. + + For example: + // Play entire CD: + if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) then + SDL_CDPlayTracks(cdrom, 0, 0, 0, 0); + // Play last track: + if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) then + begin + SDL_CDPlayTracks(cdrom, cdrom->numtracks-1, 0, 0, 0); + end; + + // Play first and second track and 10 seconds of third track: + if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) + SDL_CDPlayTracks(cdrom, 0, 0, 2, 10); + + This function returns 0, or -1 if there was an error. } + +function SDL_CDPlayTracks(cdrom: PSDL_CD; start_track: Integer; start_frame: + Integer; ntracks: Integer; nframes: Integer): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CDPlayTracks'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CDPlayTracks} + + +{ Play the given CD starting at 'start' frame for 'length' frames. + It returns 0, or -1 if there was an error. } + +function SDL_CDPlay(cdrom: PSDL_CD; start: Integer; length: Integer): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CDPlay'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CDPlay} + +// Pause play -- returns 0, or -1 on error +function SDL_CDPause(cdrom: PSDL_CD): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CDPause'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CDPause} + +// Resume play -- returns 0, or -1 on error +function SDL_CDResume(cdrom: PSDL_CD): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CDResume'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CDResume} + +// Stop play -- returns 0, or -1 on error +function SDL_CDStop(cdrom: PSDL_CD): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CDStop'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CDStop} + +// Eject CD-ROM -- returns 0, or -1 on error +function SDL_CDEject(cdrom: PSDL_CD): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CDEject'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CDEject} + +// Closes the handle for the CD-ROM drive +procedure SDL_CDClose(cdrom: PSDL_CD); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CDClose'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CDClose} + +// Given a status, returns true if there's a disk in the drive +function SDL_CDInDrive( status : TSDL_CDStatus ) : LongBool; +{$EXTERNALSYM SDL_CDInDrive} + +// Conversion functions from frames to Minute/Second/Frames and vice versa +procedure FRAMES_TO_MSF(frames: Integer; var M: Integer; var S: Integer; var + F: Integer); +{$EXTERNALSYM FRAMES_TO_MSF} +function MSF_TO_FRAMES(M: Integer; S: Integer; F: Integer): Integer; +{$EXTERNALSYM MSF_TO_FRAMES} + +{------------------------------------------------------------------------------} +{ JoyStick-routines } +{------------------------------------------------------------------------------} + +{ Count the number of joysticks attached to the system } +function SDL_NumJoysticks: Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_NumJoysticks'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_NumJoysticks} + +{ Get the implementation dependent name of a joystick. + This can be called before any joysticks are opened. + If no name can be found, this function returns NULL. } +function SDL_JoystickName(index: Integer): PChar; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_JoystickName'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_JoystickName} + +{ Open a joystick for use - the index passed as an argument refers to + the N'th joystick on the system. This index is the value which will + identify this joystick in future joystick events. + + This function returns a joystick identifier, or NULL if an error occurred. } +function SDL_JoystickOpen(index: Integer): PSDL_Joystick; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_JoystickOpen'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_JoystickOpen} + +{ Returns 1 if the joystick has been opened, or 0 if it has not. } +function SDL_JoystickOpened(index: Integer): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_JoystickOpened'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_JoystickOpened} + +{ Get the device index of an opened joystick. } +function SDL_JoystickIndex(joystick: PSDL_Joystick): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_JoystickIndex'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_JoystickIndex} + +{ Get the number of general axis controls on a joystick } +function SDL_JoystickNumAxes(joystick: PSDL_Joystick): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_JoystickNumAxes'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_JoystickNumAxes} + +{ Get the number of trackballs on a joystick + Joystick trackballs have only relative motion events associated + with them and their state cannot be polled. } +function SDL_JoystickNumBalls(joystick: PSDL_Joystick): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_JoystickNumBalls'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_JoystickNumBalls} + + +{ Get the number of POV hats on a joystick } +function SDL_JoystickNumHats(joystick: PSDL_Joystick): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_JoystickNumHats'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_JoystickNumHats} + +{ Get the number of buttons on a joystick } +function SDL_JoystickNumButtons(joystick: PSDL_Joystick): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_JoystickNumButtons'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_JoystickNumButtons} + +{ Update the current state of the open joysticks. + This is called automatically by the event loop if any joystick + events are enabled. } + +procedure SDL_JoystickUpdate; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_JoystickUpdate'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_JoystickUpdate;} + +{ Enable/disable joystick event polling. + If joystick events are disabled, you must call SDL_JoystickUpdate() + yourself and check the state of the joystick when you want joystick + information. + The state can be one of SDL_QUERY, SDL_ENABLE or SDL_IGNORE. } + +function SDL_JoystickEventState(state: Integer): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_JoystickEventState'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_JoystickEventState} + +{ Get the current state of an axis control on a joystick + The state is a value ranging from -32768 to 32767. + The axis indices start at index 0. } + +function SDL_JoystickGetAxis(joystick: PSDL_Joystick; axis: Integer) : SInt16; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_JoystickGetAxis'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_JoystickGetAxis} + +{ The hat indices start at index 0. } + +function SDL_JoystickGetHat(joystick: PSDL_Joystick; hat: Integer): UInt8; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_JoystickGetHat'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_JoystickGetHat} + +{ Get the ball axis change since the last poll + This returns 0, or -1 if you passed it invalid parameters. + The ball indices start at index 0. } + +function SDL_JoystickGetBall(joystick: PSDL_Joystick; ball: Integer; var dx: Integer; var dy: Integer): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_JoystickGetBall'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_JoystickGetBall} + +{ Get the current state of a button on a joystick + The button indices start at index 0. } +function SDL_JoystickGetButton( joystick: PSDL_Joystick; Button: Integer): UInt8; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_JoystickGetButton'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_JoystickGetButton} + +{ Close a joystick previously opened with SDL_JoystickOpen() } +procedure SDL_JoystickClose(joystick: PSDL_Joystick); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_JoystickClose'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_JoystickClose} + +{------------------------------------------------------------------------------} +{ event-handling } +{------------------------------------------------------------------------------} + +{ Pumps the event loop, gathering events from the input devices. + This function updates the event queue and internal input device state. + This should only be run in the thread that sets the video mode. } + +procedure SDL_PumpEvents; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_PumpEvents'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_PumpEvents;} + +{ Checks the event queue for messages and optionally returns them. + If 'action' is SDL_ADDEVENT, up to 'numevents' events will be added to + the back of the event queue. + If 'action' is SDL_PEEKEVENT, up to 'numevents' events at the front + of the event queue, matching 'mask', will be returned and will not + be removed from the queue. + If 'action' is SDL_GETEVENT, up to 'numevents' events at the front + of the event queue, matching 'mask', will be returned and will be + removed from the queue. + This function returns the number of events actually stored, or -1 + if there was an error. This function is thread-safe. } + +function SDL_PeepEvents(events: PSDL_Event; numevents: Integer; action: TSDL_eventaction; mask: UInt32): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_PeepEvents'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_PeepEvents} + +{ Polls for currently pending events, and returns 1 if there are any pending + events, or 0 if there are none available. If 'event' is not NULL, the next + event is removed from the queue and stored in that area. } + +function SDL_PollEvent(event: PSDL_Event): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_PollEvent'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_PollEvent} + +{ Waits indefinitely for the next available event, returning 1, or 0 if there + was an error while waiting for events. If 'event' is not NULL, the next + event is removed from the queue and stored in that area. } + +function SDL_WaitEvent(event: PSDL_Event): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_WaitEvent'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_WaitEvent} + +function SDL_PushEvent( event : PSDL_Event ) : Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_PushEvent'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_PushEvent} + +{ If the filter returns 1, then the event will be added to the internal queue. + If it returns 0, then the event will be dropped from the queue, but the + internal state will still be updated. This allows selective filtering of + dynamically arriving events. + + WARNING: Be very careful of what you do in the event filter function, as + it may run in a different thread! + + There is one caveat when dealing with the SDL_QUITEVENT event type. The + event filter is only called when the window manager desires to close the + application window. If the event filter returns 1, then the window will + be closed, otherwise the window will remain open if possible. + If the quit event is generated by an interrupt signal, it will bypass the + internal queue and be delivered to the application at the next event poll. } +procedure SDL_SetEventFilter( filter : TSDL_EventFilter ); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SetEventFilter'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SetEventFilter} + +{ Return the current event filter - can be used to "chain" filters. + If there is no event filter set, this function returns NULL. } + +function SDL_GetEventFilter: TSDL_EventFilter; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetEventFilter'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetEventFilter} + +{ This function allows you to set the state of processing certain events. + If 'state' is set to SDL_IGNORE, that event will be automatically dropped + from the event queue and will not event be filtered. + If 'state' is set to SDL_ENABLE, that event will be processed normally. + If 'state' is set to SDL_QUERY, SDL_EventState() will return the + current processing state of the specified event. } + +function SDL_EventState(type_: UInt8; state: Integer): UInt8; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_EventState'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_EventState} + +{------------------------------------------------------------------------------} +{ Version Routines } +{------------------------------------------------------------------------------} + +{ This macro can be used to fill a version structure with the compile-time + version of the SDL library. } +procedure SDL_VERSION(var X: TSDL_Version); +{$EXTERNALSYM SDL_VERSION} + +{ This macro turns the version numbers into a numeric value: + (1,2,3) -> (1203) + This assumes that there will never be more than 100 patchlevels } + +function SDL_VERSIONNUM(X, Y, Z: Integer): Integer; +{$EXTERNALSYM SDL_VERSIONNUM} + +// This is the version number macro for the current SDL version +function SDL_COMPILEDVERSION: Integer; +{$EXTERNALSYM SDL_COMPILEDVERSION} + +// This macro will evaluate to true if compiled with SDL at least X.Y.Z +function SDL_VERSION_ATLEAST(X: Integer; Y: Integer; Z: Integer) : LongBool; +{$EXTERNALSYM SDL_VERSION_ATLEAST} + +{ This function gets the version of the dynamically linked SDL library. + it should NOT be used to fill a version structure, instead you should + use the SDL_Version() macro. } + +function SDL_Linked_Version: PSDL_version; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_Linked_Version'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_Linked_Version} + +{------------------------------------------------------------------------------} +{ video } +{------------------------------------------------------------------------------} + +{ These functions are used internally, and should not be used unless you + have a specific need to specify the video driver you want to use. + You should normally use SDL_Init() or SDL_InitSubSystem(). + + SDL_VideoInit() initializes the video subsystem -- sets up a connection + to the window manager, etc, and determines the current video mode and + pixel format, but does not initialize a window or graphics mode. + Note that event handling is activated by this routine. + + If you use both sound and video in your application, you need to call + SDL_Init() before opening the sound device, otherwise under Win32 DirectX, + you won't be able to set full-screen display modes. } + +function SDL_VideoInit(driver_name: PChar; flags: UInt32): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_VideoInit'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_VideoInit} +procedure SDL_VideoQuit; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_VideoQuit'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_VideoQuit} + +{ This function fills the given character buffer with the name of the + video driver, and returns a pointer to it if the video driver has + been initialized. It returns NULL if no driver has been initialized. } + +function SDL_VideoDriverName(namebuf: PChar; maxlen: Integer): PChar; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_VideoDriverName'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_VideoDriverName} + +{ This function returns a pointer to the current display surface. + If SDL is doing format conversion on the display surface, this + function returns the publicly visible surface, not the real video + surface. } + +function SDL_GetVideoSurface: PSDL_Surface; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetVideoSurface'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetVideoSurface} + +{ This function returns a read-only pointer to information about the + video hardware. If this is called before SDL_SetVideoMode(), the 'vfmt' + member of the returned structure will contain the pixel format of the + "best" video mode. } +function SDL_GetVideoInfo: PSDL_VideoInfo; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetVideoInfo'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetVideoInfo} + +{ Check to see if a particular video mode is supported. + It returns 0 if the requested mode is not supported under any bit depth, + or returns the bits-per-pixel of the closest available mode with the + given width and height. If this bits-per-pixel is different from the + one used when setting the video mode, SDL_SetVideoMode() will succeed, + but will emulate the requested bits-per-pixel with a shadow surface. + + The arguments to SDL_VideoModeOK() are the same ones you would pass to + SDL_SetVideoMode() } + +function SDL_VideoModeOK(width, height, bpp: Integer; flags: UInt32): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_VideoModeOK'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_VideoModeOK} + +{ Return a pointer to an array of available screen dimensions for the + given format and video flags, sorted largest to smallest. Returns + NULL if there are no dimensions available for a particular format, + or (SDL_Rect **)-1 if any dimension is okay for the given format. + + if 'format' is NULL, the mode list will be for the format given + by SDL_GetVideoInfo( ) - > vfmt } + +function SDL_ListModes(format: PSDL_PixelFormat; flags: UInt32): PPSDL_Rect; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_ListModes'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_ListModes} + + +{ Set up a video mode with the specified width, height and bits-per-pixel. + + If 'bpp' is 0, it is treated as the current display bits per pixel. + + If SDL_ANYFORMAT is set in 'flags', the SDL library will try to set the + requested bits-per-pixel, but will return whatever video pixel format is + available. The default is to emulate the requested pixel format if it + is not natively available. + + If SDL_HWSURFACE is set in 'flags', the video surface will be placed in + video memory, if possible, and you may have to call SDL_LockSurface() + in order to access the raw framebuffer. Otherwise, the video surface + will be created in system memory. + + If SDL_ASYNCBLIT is set in 'flags', SDL will try to perform rectangle + updates asynchronously, but you must always lock before accessing pixels. + SDL will wait for updates to complete before returning from the lock. + + If SDL_HWPALETTE is set in 'flags', the SDL library will guarantee + that the colors set by SDL_SetColors() will be the colors you get. + Otherwise, in 8-bit mode, SDL_SetColors() may not be able to set all + of the colors exactly the way they are requested, and you should look + at the video surface structure to determine the actual palette. + If SDL cannot guarantee that the colors you request can be set, + i.e. if the colormap is shared, then the video surface may be created + under emulation in system memory, overriding the SDL_HWSURFACE flag. + + If SDL_FULLSCREEN is set in 'flags', the SDL library will try to set + a fullscreen video mode. The default is to create a windowed mode + if the current graphics system has a window manager. + If the SDL library is able to set a fullscreen video mode, this flag + will be set in the surface that is returned. + + If SDL_DOUBLEBUF is set in 'flags', the SDL library will try to set up + two surfaces in video memory and swap between them when you call + SDL_Flip(). This is usually slower than the normal single-buffering + scheme, but prevents "tearing" artifacts caused by modifying video + memory while the monitor is refreshing. It should only be used by + applications that redraw the entire screen on every update. + + This function returns the video framebuffer surface, or NULL if it fails. } + +function SDL_SetVideoMode(width, height, bpp: Integer; flags: UInt32): PSDL_Surface; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SetVideoMode'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SetVideoMode} + + +{ Makes sure the given list of rectangles is updated on the given screen. + If 'x', 'y', 'w' and 'h' are all 0, SDL_UpdateRect will update the entire + screen. + These functions should not be called while 'screen' is locked. } + +procedure SDL_UpdateRects(screen: PSDL_Surface; numrects: Integer; rects: PSDL_Rect); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_UpdateRects'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_UpdateRects} +procedure SDL_UpdateRect(screen: PSDL_Surface; x, y: SInt32; w, h: UInt32); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_UpdateRect'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_UpdateRect} + + +{ On hardware that supports double-buffering, this function sets up a flip + and returns. The hardware will wait for vertical retrace, and then swap + video buffers before the next video surface blit or lock will return. + On hardware that doesn not support double-buffering, this is equivalent + to calling SDL_UpdateRect(screen, 0, 0, 0, 0); + The SDL_DOUBLEBUF flag must have been passed to SDL_SetVideoMode() when + setting the video mode for this function to perform hardware flipping. + This function returns 0 if successful, or -1 if there was an error.} + +function SDL_Flip(screen: PSDL_Surface): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_Flip'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_Flip} + +{ Set the gamma correction for each of the color channels. + The gamma values range (approximately) between 0.1 and 10.0 + + If this function isn't supported directly by the hardware, it will + be emulated using gamma ramps, if available. If successful, this + function returns 0, otherwise it returns -1. } + +function SDL_SetGamma(redgamma: single; greengamma: single; bluegamma: single ): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SetGamma'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SetGamma} + +{ Set the gamma translation table for the red, green, and blue channels + of the video hardware. Each table is an array of 256 16-bit quantities, + representing a mapping between the input and output for that channel. + The input is the index into the array, and the output is the 16-bit + gamma value at that index, scaled to the output color precision. + + You may pass NULL for any of the channels to leave it unchanged. + If the call succeeds, it will return 0. If the display driver or + hardware does not support gamma translation, or otherwise fails, + this function will return -1. } + +function SDL_SetGammaRamp( redtable: PUInt16; greentable: PUInt16; bluetable: PUInt16): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SetGammaRamp'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SetGammaRamp} + +{ Retrieve the current values of the gamma translation tables. + + You must pass in valid pointers to arrays of 256 16-bit quantities. + Any of the pointers may be NULL to ignore that channel. + If the call succeeds, it will return 0. If the display driver or + hardware does not support gamma translation, or otherwise fails, + this function will return -1. } + +function SDL_GetGammaRamp( redtable: PUInt16; greentable: PUInt16; bluetable: PUInt16): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetGammaRamp'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetGammaRamp} + +{ Sets a portion of the colormap for the given 8-bit surface. If 'surface' + is not a palettized surface, this function does nothing, returning 0. + If all of the colors were set as passed to SDL_SetColors(), it will + return 1. If not all the color entries were set exactly as given, + it will return 0, and you should look at the surface palette to + determine the actual color palette. + + When 'surface' is the surface associated with the current display, the + display colormap will be updated with the requested colors. If + SDL_HWPALETTE was set in SDL_SetVideoMode() flags, SDL_SetColors() + will always return 1, and the palette is guaranteed to be set the way + you desire, even if the window colormap has to be warped or run under + emulation. } + + +function SDL_SetColors(surface: PSDL_Surface; colors: PSDL_Color; firstcolor : Integer; ncolors: Integer) : Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SetColors'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SetColors} + +{ Sets a portion of the colormap for a given 8-bit surface. + 'flags' is one or both of: + SDL_LOGPAL -- set logical palette, which controls how blits are mapped + to/from the surface, + SDL_PHYSPAL -- set physical palette, which controls how pixels look on + the screen + Only screens have physical palettes. Separate change of physical/logical + palettes is only possible if the screen has SDL_HWPALETTE set. + + The return value is 1 if all colours could be set as requested, and 0 + otherwise. + + SDL_SetColors() is equivalent to calling this function with + flags = (SDL_LOGPAL or SDL_PHYSPAL). } + +function SDL_SetPalette(surface: PSDL_Surface; flags: Integer; colors: PSDL_Color; firstcolor: Integer; ncolors: Integer): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SetPalette'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SetPalette} + +{ Maps an RGB triple to an opaque pixel value for a given pixel format } +function SDL_MapRGB(format: PSDL_PixelFormat; r: UInt8; g: UInt8; b: UInt8) : UInt32; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_MapRGB'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_MapRGB} + +{ Maps an RGBA quadruple to a pixel value for a given pixel format } +function SDL_MapRGBA(format: PSDL_PixelFormat; r: UInt8; g: UInt8; b: UInt8; a: UInt8): UInt32; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_MapRGBA'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_MapRGBA} + +{ Maps a pixel value into the RGB components for a given pixel format } +procedure SDL_GetRGB(pixel: UInt32; fmt: PSDL_PixelFormat; r: PUInt8; g: PUInt8; b: PUInt8); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetRGB'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetRGB} + +{ Maps a pixel value into the RGBA components for a given pixel format } +procedure SDL_GetRGBA(pixel: UInt32; fmt: PSDL_PixelFormat; r: PUInt8; g: PUInt8; b: PUInt8; a: PUInt8); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetRGBA'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetRGBA} + +{ Allocate and free an RGB surface (must be called after SDL_SetVideoMode) + If the depth is 4 or 8 bits, an empty palette is allocated for the surface. + If the depth is greater than 8 bits, the pixel format is set using the + flags '[RGB]mask'. + If the function runs out of memory, it will return NULL. + + The 'flags' tell what kind of surface to create. + SDL_SWSURFACE means that the surface should be created in system memory. + SDL_HWSURFACE means that the surface should be created in video memory, + with the same format as the display surface. This is useful for surfaces + that will not change much, to take advantage of hardware acceleration + when being blitted to the display surface. + SDL_ASYNCBLIT means that SDL will try to perform asynchronous blits with + this surface, but you must always lock it before accessing the pixels. + SDL will wait for current blits to finish before returning from the lock. + SDL_SRCCOLORKEY indicates that the surface will be used for colorkey blits. + If the hardware supports acceleration of colorkey blits between + two surfaces in video memory, SDL will try to place the surface in + video memory. If this isn't possible or if there is no hardware + acceleration available, the surface will be placed in system memory. + SDL_SRCALPHA means that the surface will be used for alpha blits and + if the hardware supports hardware acceleration of alpha blits between + two surfaces in video memory, to place the surface in video memory + if possible, otherwise it will be placed in system memory. + If the surface is created in video memory, blits will be _much_ faster, + but the surface format must be identical to the video surface format, + and the only way to access the pixels member of the surface is to use + the SDL_LockSurface() and SDL_UnlockSurface() calls. + If the requested surface actually resides in video memory, SDL_HWSURFACE + will be set in the flags member of the returned surface. If for some + reason the surface could not be placed in video memory, it will not have + the SDL_HWSURFACE flag set, and will be created in system memory instead. } + +function SDL_AllocSurface(flags: UInt32; width, height, depth: Integer; + RMask, GMask, BMask, AMask: UInt32): PSDL_Surface; +{$EXTERNALSYM SDL_AllocSurface} + +function SDL_CreateRGBSurface(flags: UInt32; width, height, depth: Integer; RMask, GMask, BMask, AMask: UInt32): PSDL_Surface; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CreateRGBSurface'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CreateRGBSurface} + +function SDL_CreateRGBSurfaceFrom(pixels: Pointer; width, height, depth, pitch + : Integer; RMask, GMask, BMask, AMask: UInt32): PSDL_Surface; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CreateRGBSurfaceFrom'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CreateRGBSurfaceFrom} + +procedure SDL_FreeSurface(surface: PSDL_Surface); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_FreeSurface'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_FreeSurface} + +function SDL_MustLock(Surface: PSDL_Surface): Boolean; +{$EXTERNALSYM SDL_MustLock} +{ SDL_LockSurface() sets up a surface for directly accessing the pixels. + Between calls to SDL_LockSurface()/SDL_UnlockSurface(), you can write + to and read from 'surface->pixels', using the pixel format stored in + 'surface->format'. Once you are done accessing the surface, you should + use SDL_UnlockSurface() to release it. + + Not all surfaces require locking. If SDL_MUSTLOCK(surface) evaluates + to 0, then you can read and write to the surface at any time, and the + pixel format of the surface will not change. In particular, if the + SDL_HWSURFACE flag is not given when calling SDL_SetVideoMode(), you + will not need to lock the display surface before accessing it. + + No operating system or library calls should be made between lock/unlock + pairs, as critical system locks may be held during this time. + + SDL_LockSurface() returns 0, or -1 if the surface couldn't be locked. } +function SDL_LockSurface(surface: PSDL_Surface): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_LockSurface'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_LockSurface} + +procedure SDL_UnlockSurface(surface: PSDL_Surface); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_UnlockSurface'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_UnlockSurface} + +{ Load a surface from a seekable SDL data source (memory or file.) + If 'freesrc' is non-zero, the source will be closed after being read. + Returns the new surface, or NULL if there was an error. + The new surface should be freed with SDL_FreeSurface(). } +function SDL_LoadBMP_RW(src: PSDL_RWops; freesrc: Integer): PSDL_Surface; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_LoadBMP_RW'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_LoadBMP_RW} + +// Convenience macro -- load a surface from a file +function SDL_LoadBMP(filename: PChar): PSDL_Surface; +{$EXTERNALSYM SDL_LoadBMP} + +{ Save a surface to a seekable SDL data source (memory or file.) + If 'freedst' is non-zero, the source will be closed after being written. + Returns 0 if successful or -1 if there was an error. } + +function SDL_SaveBMP_RW(surface: PSDL_Surface; dst: PSDL_RWops; freedst: Integer): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SaveBMP_RW'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SaveBMP_RW} + +// Convenience macro -- save a surface to a file +function SDL_SaveBMP(surface: PSDL_Surface; filename: PChar): Integer; +{$EXTERNALSYM SDL_SaveBMP} + +{ Sets the color key (transparent pixel) in a blittable surface. + If 'flag' is SDL_SRCCOLORKEY (optionally OR'd with SDL_RLEACCEL), + 'key' will be the transparent pixel in the source image of a blit. + SDL_RLEACCEL requests RLE acceleration for the surface if present, + and removes RLE acceleration if absent. + If 'flag' is 0, this function clears any current color key. + This function returns 0, or -1 if there was an error. } + +function SDL_SetColorKey(surface: PSDL_Surface; flag, key: UInt32) : Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SetColorKey'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SetColorKey} + +{ This function sets the alpha value for the entire surface, as opposed to + using the alpha component of each pixel. This value measures the range + of transparency of the surface, 0 being completely transparent to 255 + being completely opaque. An 'alpha' value of 255 causes blits to be + opaque, the source pixels copied to the destination (the default). Note + that per-surface alpha can be combined with colorkey transparency. + + If 'flag' is 0, alpha blending is disabled for the surface. + If 'flag' is SDL_SRCALPHA, alpha blending is enabled for the surface. + OR:ing the flag with SDL_RLEACCEL requests RLE acceleration for the + surface; if SDL_RLEACCEL is not specified, the RLE accel will be removed. } + + +function SDL_SetAlpha(surface: PSDL_Surface; flag: UInt32; alpha: UInt8): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SetAlpha'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SetAlpha} + +{ Sets the clipping rectangle for the destination surface in a blit. + + If the clip rectangle is NULL, clipping will be disabled. + If the clip rectangle doesn't intersect the surface, the function will + return SDL_FALSE and blits will be completely clipped. Otherwise the + function returns SDL_TRUE and blits to the surface will be clipped to + the intersection of the surface area and the clipping rectangle. + + Note that blits are automatically clipped to the edges of the source + and destination surfaces. } +procedure SDL_SetClipRect(surface: PSDL_Surface; rect: PSDL_Rect); cdecl; +external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SetClipRect'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SetClipRect} + +{ Gets the clipping rectangle for the destination surface in a blit. + 'rect' must be a pointer to a valid rectangle which will be filled + with the correct values. } +procedure SDL_GetClipRect(surface: PSDL_Surface; rect: PSDL_Rect); cdecl; +external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetClipRect'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetClipRect} + +{ Creates a new surface of the specified format, and then copies and maps + the given surface to it so the blit of the converted surface will be as + fast as possible. If this function fails, it returns NULL. + + The 'flags' parameter is passed to SDL_CreateRGBSurface() and has those + semantics. You can also pass SDL_RLEACCEL in the flags parameter and + SDL will try to RLE accelerate colorkey and alpha blits in the resulting + surface. + + This function is used internally by SDL_DisplayFormat(). } + +function SDL_ConvertSurface(src: PSDL_Surface; fmt: PSDL_PixelFormat; flags: UInt32): PSDL_Surface; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_ConvertSurface'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_ConvertSurface} + +{ + This performs a fast blit from the source surface to the destination + surface. It assumes that the source and destination rectangles are + the same size. If either 'srcrect' or 'dstrect' are NULL, the entire + surface (src or dst) is copied. The final blit rectangles are saved + in 'srcrect' and 'dstrect' after all clipping is performed. + If the blit is successful, it returns 0, otherwise it returns -1. + + The blit function should not be called on a locked surface. + + The blit semantics for surfaces with and without alpha and colorkey + are defined as follows: + + RGBA->RGB: + SDL_SRCALPHA set: + alpha-blend (using alpha-channel). + SDL_SRCCOLORKEY ignored. + SDL_SRCALPHA not set: + copy RGB. + if SDL_SRCCOLORKEY set, only copy the pixels matching the + RGB values of the source colour key, ignoring alpha in the + comparison. + + RGB->RGBA: + SDL_SRCALPHA set: + alpha-blend (using the source per-surface alpha value); + set destination alpha to opaque. + SDL_SRCALPHA not set: + copy RGB, set destination alpha to opaque. + both: + if SDL_SRCCOLORKEY set, only copy the pixels matching the + source colour key. + + RGBA->RGBA: + SDL_SRCALPHA set: + alpha-blend (using the source alpha channel) the RGB values; + leave destination alpha untouched. [Note: is this correct?] + SDL_SRCCOLORKEY ignored. + SDL_SRCALPHA not set: + copy all of RGBA to the destination. + if SDL_SRCCOLORKEY set, only copy the pixels matching the + RGB values of the source colour key, ignoring alpha in the + comparison. + + RGB->RGB: + SDL_SRCALPHA set: + alpha-blend (using the source per-surface alpha value). + SDL_SRCALPHA not set: + copy RGB. + both: + if SDL_SRCCOLORKEY set, only copy the pixels matching the + source colour key. + + If either of the surfaces were in video memory, and the blit returns -2, + the video memory was lost, so it should be reloaded with artwork and + re-blitted: + while ( SDL_BlitSurface(image, imgrect, screen, dstrect) = -2 ) do + begin + while ( SDL_LockSurface(image) < 0 ) do + Sleep(10); + -- Write image pixels to image->pixels -- + SDL_UnlockSurface(image); + end; + + This happens under DirectX 5.0 when the system switches away from your + fullscreen application. The lock will also fail until you have access + to the video memory again. } + +{ You should call SDL_BlitSurface() unless you know exactly how SDL + blitting works internally and how to use the other blit functions. } + +function SDL_BlitSurface(src: PSDL_Surface; srcrect: PSDL_Rect; dst: PSDL_Surface; dstrect: PSDL_Rect): Integer; +{$EXTERNALSYM SDL_BlitSurface} + +{ This is the public blit function, SDL_BlitSurface(), and it performs + rectangle validation and clipping before passing it to SDL_LowerBlit() } +function SDL_UpperBlit(src: PSDL_Surface; srcrect: PSDL_Rect; dst: PSDL_Surface; dstrect: PSDL_Rect): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_UpperBlit'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_UpperBlit} + +{ This is a semi-private blit function and it performs low-level surface + blitting only. } +function SDL_LowerBlit(src: PSDL_Surface; srcrect: PSDL_Rect; dst: PSDL_Surface; dstrect: PSDL_Rect): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_LowerBlit'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_LowerBlit} + +{ This function performs a fast fill of the given rectangle with 'color' + The given rectangle is clipped to the destination surface clip area + and the final fill rectangle is saved in the passed in pointer. + If 'dstrect' is NULL, the whole surface will be filled with 'color' + The color should be a pixel of the format used by the surface, and + can be generated by the SDL_MapRGB() function. + This function returns 0 on success, or -1 on error. } + +function SDL_FillRect(dst: PSDL_Surface; dstrect: PSDL_Rect; color: UInt32) : Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_FillRect'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_FillRect} + +{ This function takes a surface and copies it to a new surface of the + pixel format and colors of the video framebuffer, suitable for fast + blitting onto the display surface. It calls SDL_ConvertSurface() + + If you want to take advantage of hardware colorkey or alpha blit + acceleration, you should set the colorkey and alpha value before + calling this function. + + If the conversion fails or runs out of memory, it returns NULL } + +function SDL_DisplayFormat(surface: PSDL_Surface): PSDL_Surface; cdecl; +external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_DisplayFormat'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_DisplayFormat} + +{ This function takes a surface and copies it to a new surface of the + pixel format and colors of the video framebuffer (if possible), + suitable for fast alpha blitting onto the display surface. + The new surface will always have an alpha channel. + + If you want to take advantage of hardware colorkey or alpha blit + acceleration, you should set the colorkey and alpha value before + calling this function. + + If the conversion fails or runs out of memory, it returns NULL } + + +function SDL_DisplayFormatAlpha(surface: PSDL_Surface): PSDL_Surface; cdecl; +external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_DisplayFormatAlpha'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_DisplayFormatAlpha} + +//* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ +//* YUV video surface overlay functions */ +//* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +{ This function creates a video output overlay + Calling the returned surface an overlay is something of a misnomer because + the contents of the display surface underneath the area where the overlay + is shown is undefined - it may be overwritten with the converted YUV data. } + +function SDL_CreateYUVOverlay(width: Integer; height: Integer; format: UInt32; display: PSDL_Surface): PSDL_Overlay; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CreateYUVOverlay'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CreateYUVOverlay} + +// Lock an overlay for direct access, and unlock it when you are done +function SDL_LockYUVOverlay(Overlay: PSDL_Overlay): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_LockYUVOverlay'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_LockYUVOverlay} + +procedure SDL_UnlockYUVOverlay(Overlay: PSDL_Overlay); cdecl; +external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_UnlockYUVOverlay'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_UnlockYUVOverlay} + + +{ Blit a video overlay to the display surface. + The contents of the video surface underneath the blit destination are + not defined. + The width and height of the destination rectangle may be different from + that of the overlay, but currently only 2x scaling is supported. } + +function SDL_DisplayYUVOverlay(Overlay: PSDL_Overlay; dstrect: PSDL_Rect) : Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_DisplayYUVOverlay'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_DisplayYUVOverlay} + +// Free a video overlay +procedure SDL_FreeYUVOverlay(Overlay: PSDL_Overlay); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_FreeYUVOverlay'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_FreeYUVOverlay} + +{------------------------------------------------------------------------------} +{ OpenGL Routines } +{------------------------------------------------------------------------------} + +{ Dynamically load a GL driver, if SDL is built with dynamic GL. + + SDL links normally with the OpenGL library on your system by default, + but you can compile it to dynamically load the GL driver at runtime. + If you do this, you need to retrieve all of the GL functions used in + your program from the dynamic library using SDL_GL_GetProcAddress(). + + This is disabled in default builds of SDL. } + + +function SDL_GL_LoadLibrary(filename: PChar): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GL_LoadLibrary'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GL_LoadLibrary} + +{ Get the address of a GL function (for extension functions) } +function SDL_GL_GetProcAddress(procname: PChar) : Pointer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GL_GetProcAddress'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GL_GetProcAddress} + +{ Set an attribute of the OpenGL subsystem before intialization. } +function SDL_GL_SetAttribute(attr: TSDL_GLAttr; value: Integer) : Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GL_SetAttribute'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GL_SetAttribute} + +{ Get an attribute of the OpenGL subsystem from the windowing + interface, such as glX. This is of course different from getting + the values from SDL's internal OpenGL subsystem, which only + stores the values you request before initialization. + + Developers should track the values they pass into SDL_GL_SetAttribute + themselves if they want to retrieve these values. } + +function SDL_GL_GetAttribute(attr: TSDL_GLAttr; var value: Integer): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GL_GetAttribute'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GL_GetAttribute} + +{ Swap the OpenGL buffers, if double-buffering is supported. } + +procedure SDL_GL_SwapBuffers; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GL_SwapBuffers'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GL_SwapBuffers;} + +{ Internal functions that should not be called unless you have read + and understood the source code for these functions. } + +procedure SDL_GL_UpdateRects(numrects: Integer; rects: PSDL_Rect); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GL_UpdateRects'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GL_UpdateRects} +procedure SDL_GL_Lock; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GL_Lock'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GL_Lock;} +procedure SDL_GL_Unlock; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GL_Unlock'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GL_Unlock;} + +{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *} +{* These functions allow interaction with the window manager, if any. *} +{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *} + +{ Sets/Gets the title and icon text of the display window } +procedure SDL_WM_GetCaption(var title : PChar; var icon : PChar); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_WM_GetCaption'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_WM_GetCaption} +procedure SDL_WM_SetCaption( const title : PChar; const icon : PChar); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_WM_SetCaption'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_WM_SetCaption} + +{ Sets the icon for the display window. + This function must be called before the first call to SDL_SetVideoMode(). + It takes an icon surface, and a mask in MSB format. + If 'mask' is NULL, the entire icon surface will be used as the icon. } +procedure SDL_WM_SetIcon(icon: PSDL_Surface; mask: PUInt8); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_WM_SetIcon'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_WM_SetIcon} + +{ This function iconifies the window, and returns 1 if it succeeded. + If the function succeeds, it generates an SDL_APPACTIVE loss event. + This function is a noop and returns 0 in non-windowed environments. } + +function SDL_WM_IconifyWindow: Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_WM_IconifyWindow'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_WM_IconifyWindow} + +{ Toggle fullscreen mode without changing the contents of the screen. + If the display surface does not require locking before accessing + the pixel information, then the memory pointers will not change. + + If this function was able to toggle fullscreen mode (change from + running in a window to fullscreen, or vice-versa), it will return 1. + If it is not implemented, or fails, it returns 0. + + The next call to SDL_SetVideoMode() will set the mode fullscreen + attribute based on the flags parameter - if SDL_FULLSCREEN is not + set, then the display will be windowed by default where supported. + + This is currently only implemented in the X11 video driver. } + +function SDL_WM_ToggleFullScreen(surface: PSDL_Surface): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_WM_ToggleFullScreen'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_WM_ToggleFullScreen} + +{ Grabbing means that the mouse is confined to the application window, + and nearly all keyboard input is passed directly to the application, + and not interpreted by a window manager, if any. } + +function SDL_WM_GrabInput(mode: TSDL_GrabMode): TSDL_GrabMode; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_WM_GrabInput'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_WM_GrabInput} + +{------------------------------------------------------------------------------} +{ mouse-routines } +{------------------------------------------------------------------------------} + +{ Retrieve the current state of the mouse. + The current button state is returned as a button bitmask, which can + be tested using the SDL_BUTTON(X) macros, and x and y are set to the + current mouse cursor position. You can pass NULL for either x or y. } + +function SDL_GetMouseState(var x: Integer; var y: Integer): UInt8; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetMouseState'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetMouseState} + +{ Retrieve the current state of the mouse. + The current button state is returned as a button bitmask, which can + be tested using the SDL_BUTTON(X) macros, and x and y are set to the + mouse deltas since the last call to SDL_GetRelativeMouseState(). } +function SDL_GetRelativeMouseState(var x: Integer; var y: Integer): UInt8; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetRelativeMouseState'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetRelativeMouseState} + +{ Set the position of the mouse cursor (generates a mouse motion event) } +procedure SDL_WarpMouse(x, y: UInt16); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_WarpMouse'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_WarpMouse} + +{ Create a cursor using the specified data and mask (in MSB format). + The cursor width must be a multiple of 8 bits. + + The cursor is created in black and white according to the following: + data mask resulting pixel on screen + 0 1 White + 1 1 Black + 0 0 Transparent + 1 0 Inverted color if possible, black if not. + + Cursors created with this function must be freed with SDL_FreeCursor(). } +function SDL_CreateCursor(data, mask: PUInt8; w, h, hot_x, hot_y: Integer): PSDL_Cursor; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CreateCursor'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CreateCursor} + +{ Set the currently active cursor to the specified one. + If the cursor is currently visible, the change will be immediately + represented on the display. } +procedure SDL_SetCursor(cursor: PSDL_Cursor); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SetCursor'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SetCursor} + +{ Returns the currently active cursor. } +function SDL_GetCursor: PSDL_Cursor; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetCursor'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetCursor} + +{ Deallocates a cursor created with SDL_CreateCursor(). } +procedure SDL_FreeCursor(cursor: PSDL_Cursor); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_FreeCursor'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_FreeCursor} + +{ Toggle whether or not the cursor is shown on the screen. + The cursor start off displayed, but can be turned off. + SDL_ShowCursor() returns 1 if the cursor was being displayed + before the call, or 0 if it was not. You can query the current + state by passing a 'toggle' value of -1. } +function SDL_ShowCursor(toggle: Integer): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_ShowCursor'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_ShowCursor} + +function SDL_BUTTON( Button : Integer ) : Integer; + +{------------------------------------------------------------------------------} +{ Keyboard-routines } +{------------------------------------------------------------------------------} + +{ Enable/Disable UNICODE translation of keyboard input. + This translation has some overhead, so translation defaults off. + If 'enable' is 1, translation is enabled. + If 'enable' is 0, translation is disabled. + If 'enable' is -1, the translation state is not changed. + It returns the previous state of keyboard translation. } +function SDL_EnableUNICODE(enable: Integer): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_EnableUNICODE'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_EnableUNICODE} + +{ If 'delay' is set to 0, keyboard repeat is disabled. } +function SDL_EnableKeyRepeat(delay: Integer; interval: Integer): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_EnableKeyRepeat'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_EnableKeyRepeat} + +procedure SDL_GetKeyRepeat(delay : PInteger; interval: PInteger); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetKeyRepeat'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetKeyRepeat} + +{ Get a snapshot of the current state of the keyboard. + Returns an array of keystates, indexed by the SDLK_* syms. + Used: + + UInt8 *keystate = SDL_GetKeyState(NULL); + if ( keystate[SDLK_RETURN] ) ... <RETURN> is pressed } + +function SDL_GetKeyState(numkeys: PInt): PUInt8; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetKeyState'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetKeyState} + +{ Get the current key modifier state } +function SDL_GetModState: TSDLMod; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetModState'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetModState} + +{ Set the current key modifier state + This does not change the keyboard state, only the key modifier flags. } +procedure SDL_SetModState(modstate: TSDLMod); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SetModState'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SetModState} + +{ Get the name of an SDL virtual keysym } +function SDL_GetKeyName(key: TSDLKey): PChar; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetKeyName'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetKeyName} + +{------------------------------------------------------------------------------} +{ Active Routines } +{------------------------------------------------------------------------------} + +{ This function returns the current state of the application, which is a + bitwise combination of SDL_APPMOUSEFOCUS, SDL_APPINPUTFOCUS, and + SDL_APPACTIVE. If SDL_APPACTIVE is set, then the user is able to + see your application, otherwise it has been iconified or disabled. } + +function SDL_GetAppState: UInt8; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetAppState'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetAppState} + + +{ Mutex functions } + +{ Create a mutex, initialized unlocked } + +function SDL_CreateMutex: PSDL_Mutex; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CreateMutex'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CreateMutex} + +{ Lock the mutex (Returns 0, or -1 on error) } + + function SDL_mutexP(mutex: PSDL_mutex): Integer; + cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_mutexP'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{ $ EXTERNALSYM SDL_mutexP} + +function SDL_LockMutex(mutex: PSDL_mutex): Integer; +{$EXTERNALSYM SDL_LockMutex} + +{ Unlock the mutex (Returns 0, or -1 on error) } +function SDL_mutexV(mutex: PSDL_mutex): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_mutexV'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_mutexV} + +function SDL_UnlockMutex(mutex: PSDL_mutex): Integer; +{$EXTERNALSYM SDL_UnlockMutex} + +{ Destroy a mutex } +procedure SDL_DestroyMutex(mutex: PSDL_mutex); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_DestroyMutex'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_DestroyMutex} + +{ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * } +{ Semaphore functions } +{ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * } +{ Create a semaphore, initialized with value, returns NULL on failure. } +function SDL_CreateSemaphore(initial_value: UInt32): PSDL_Sem; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CreateSemaphore'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CreateSemaphore} + + +{ Destroy a semaphore } +procedure SDL_DestroySemaphore(sem: PSDL_sem); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_DestroySemaphore'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_DestroySemaphore} + +{ This function suspends the calling thread until the semaphore pointed + to by sem has a positive count. It then atomically decreases the semaphore + count. } + +function SDL_SemWait(sem: PSDL_sem): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SemWait'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SemWait} + +{ Non-blocking variant of SDL_SemWait(), returns 0 if the wait succeeds, + SDL_MUTEX_TIMEDOUT if the wait would block, and -1 on error. } + +function SDL_SemTryWait(sem: PSDL_sem): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SemTryWait'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SemTryWait} + +{ Variant of SDL_SemWait() with a timeout in milliseconds, returns 0 if + the wait succeeds, SDL_MUTEX_TIMEDOUT if the wait does not succeed in + the allotted time, and -1 on error. + On some platforms this function is implemented by looping with a delay + of 1 ms, and so should be avoided if possible. } + +function SDL_SemWaitTimeout(sem: PSDL_sem; ms: UInt32): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SemWaitTimeout'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SemTryWait} + +{ Atomically increases the semaphore's count (not blocking), returns 0, + or -1 on error. } + +function SDL_SemPost(sem: PSDL_sem): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SemPost'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SemTryWait} + +{ Returns the current count of the semaphore } + +function SDL_SemValue(sem: PSDL_sem): UInt32; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_SemValue'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_SemValue} + +{ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * } +{ Condition variable functions } +{ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * } +{ Create a condition variable } +function SDL_CreateCond: PSDL_Cond; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CreateCond'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CreateCond} + +{ Destroy a condition variable } +procedure SDL_DestroyCond(cond: PSDL_Cond); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_DestroyCond'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_DestroyCond} + +{ Restart one of the threads that are waiting on the condition variable, + returns 0 or -1 on error. } + +function SDL_CondSignal(cond: PSDL_cond): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CondSignal'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CondSignal} + +{ Restart all threads that are waiting on the condition variable, + returns 0 or -1 on error. } + +function SDL_CondBroadcast(cond: PSDL_cond): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CondBroadcast'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CondBroadcast} + + +{ Wait on the condition variable, unlocking the provided mutex. + The mutex must be locked before entering this function! + Returns 0 when it is signaled, or -1 on error. } + +function SDL_CondWait(cond: PSDL_cond; mut: PSDL_mutex): Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CondWait'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CondWait} + +{ Waits for at most 'ms' milliseconds, and returns 0 if the condition + variable is signaled, SDL_MUTEX_TIMEDOUT if the condition is not + signaled in the allotted time, and -1 on error. + On some platforms this function is implemented by looping with a delay + of 1 ms, and so should be avoided if possible. } + +function SDL_CondWaitTimeout(cond: PSDL_cond; mut: PSDL_mutex; ms: UInt32) : Integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CondWaitTimeout'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CondWaitTimeout} + +{ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * } +{ Condition variable functions } +{ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * } + +{ Create a thread } +function SDL_CreateThread(fn: PInt; data: Pointer): PSDL_Thread; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_CreateThread'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_CreateThread} + +{ Get the 32-bit thread identifier for the current thread } +function SDL_ThreadID: UInt32; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_ThreadID'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_ThreadID} + +{ Get the 32-bit thread identifier for the specified thread, + equivalent to SDL_ThreadID() if the specified thread is NULL. } +function SDL_GetThreadID(thread: PSDL_Thread): UInt32; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetThreadID'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetThreadID} + +{ Wait for a thread to finish. + The return code for the thread function is placed in the area + pointed to by 'status', if 'status' is not NULL. } + +procedure SDL_WaitThread(thread: PSDL_Thread; var status: Integer); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_WaitThread'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_WaitThread} + +{ Forcefully kill a thread without worrying about its state } +procedure SDL_KillThread(thread: PSDL_Thread); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_KillThread'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_KillThread} + +{------------------------------------------------------------------------------} +{ Get Environment Routines } +{------------------------------------------------------------------------------} +{$IFDEF WINDOWS} +function _putenv( const variable : Pchar ): integer; +cdecl; +{$ENDIF} + +{$IFDEF Unix} +{$IFDEF FPC} +function _putenv( const variable : Pchar ): integer; +cdecl; external 'libc.so' name 'putenv'; +{$ENDIF} +{$ENDIF} + +{ Put a variable of the form "name=value" into the environment } +//function SDL_putenv(const variable: PChar): integer; cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_Init'{$ELSE} SDLLibName{$ENDIF __GPC__}SDLLibName name ''; +function SDL_putenv(const variable: PChar): integer; +{$EXTERNALSYM SDL_putenv} + +// The following function has been commented out to encourage developers to use +// SDL_putenv as it it more portable +//function putenv(const variable: PChar): integer; +//{$EXTERNALSYM putenv} + +{$IFDEF WINDOWS} +{$IFNDEF __GPC__} +function getenv( const name : Pchar ): PChar; cdecl; +{$ENDIF} +{$ENDIF} + +{* Retrieve a variable named "name" from the environment } +//function SDL_getenv(const name: PChar): PChar; cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_Init'{$ELSE} SDLLibName{$ENDIF __GPC__}SDLLibName name ''; +function SDL_getenv(const name: PChar): PChar; +{$EXTERNALSYM SDL_getenv} + +// The following function has been commented out to encourage developers to use +// SDL_getenv as it it more portable +//function getenv(const name: PChar): PChar; +//{$EXTERNALSYM getenv} + +{* + * This function gives you custom hooks into the window manager information. + * It fills the structure pointed to by 'info' with custom information and + * returns 1 if the function is implemented. If it's not implemented, or + * the version member of the 'info' structure is invalid, it returns 0. + *} +function SDL_GetWMInfo(info : PSDL_SysWMinfo) : integer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_GetWMInfo'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_GetWMInfo} + +{------------------------------------------------------------------------------} + +//SDL_loadso.h +{* This function dynamically loads a shared object and returns a pointer + * to the object handle (or NULL if there was an error). + * The 'sofile' parameter is a system dependent name of the object file. + *} +function SDL_LoadObject( const sofile : PChar ) : Pointer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_LoadObject'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_LoadObject} + +{* Given an object handle, this function looks up the address of the + * named function in the shared object and returns it. This address + * is no longer valid after calling SDL_UnloadObject(). + *} +function SDL_LoadFunction( handle : Pointer; const name : PChar ) : Pointer; +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_LoadFunction'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_LoadFunction} + +{* Unload a shared object from memory *} +procedure SDL_UnloadObject( handle : Pointer ); +cdecl; external {$IFNDEF NDS}{$IFDEF __GPC__}name 'SDL_UnloadObject'{$ELSE} SDLLibName{$ENDIF __GPC__}{$ENDIF}; +{$EXTERNALSYM SDL_UnloadObject} + + + +{------------------------------------------------------------------------------} + +function SDL_Swap32(D: Uint32): Uint32; +{$EXTERNALSYM SDL_Swap32} + +{ FreeAndNil frees the given TObject instance and sets the variable reference + to nil. Be careful to only pass TObjects to this routine. } +procedure FreeAndNil(var Obj); + +{ Exit procedure handling } + +{ AddExitProc adds the given procedure to the run-time library's exit + procedure list. When an application terminates, its exit procedures are + executed in reverse order of definition, i.e. the last procedure passed + to AddExitProc is the first one to get executed upon termination. } +procedure AddExitProc(Proc: TProcedure); + +// Bitwise Checking functions +function IsBitOn( value : integer; bit : Byte ) : boolean; + +function TurnBitOn( value : integer; bit : Byte ) : integer; + +function TurnBitOff( value : integer; bit : Byte ) : integer; + +implementation + +{$IFDEF __GPC__} + {$L 'sdl'} { link sdl.dll.a or libsdl.so or libsdl.a } +{$ENDIF} + +function SDL_TABLESIZE(table: PChar): Integer; +begin + Result := SizeOf(table) div SizeOf(table[0]); +end; + +procedure SDL_OutOfMemory; +begin + {$IFNDEF WINDOWS} + SDL_Error(SDL_ENOMEM); + {$ENDIF} +end; + +function SDL_RWSeek(context: PSDL_RWops; offset: Integer; whence: Integer) : Integer; +begin + Result := context^.seek(context, offset, whence); +end; + +function SDL_RWTell(context: PSDL_RWops): Integer; +begin + Result := context^.seek(context, 0, 1); +end; + +function SDL_RWRead(context: PSDL_RWops; ptr: Pointer; size: Integer; n: Integer): Integer; +begin + Result := context^.read(context, ptr, size, n); +end; + +function SDL_RWWrite(context: PSDL_RWops; ptr: Pointer; size: Integer; n: Integer): Integer; +begin + Result := context^.write(context, ptr, size, n); +end; + +function SDL_RWClose(context: PSDL_RWops): Integer; +begin + Result := context^.close(context); +end; + +function SDL_LoadWAV(filename: PChar; spec: PSDL_AudioSpec; audio_buf: PUInt8; audiolen: PUInt32): PSDL_AudioSpec; +begin + Result := SDL_LoadWAV_RW(SDL_RWFromFile(filename, 'rb'), 1, spec, audio_buf, audiolen); +end; + +function SDL_CDInDrive( status : TSDL_CDStatus ): LongBool; +begin + Result := ord( status ) > ord( CD_ERROR ); +end; + +procedure FRAMES_TO_MSF(frames: Integer; var M: Integer; var S: Integer; var + F: Integer); +var + value: Integer; +begin + value := frames; + F := value mod CD_FPS; + value := value div CD_FPS; + S := value mod 60; + value := value div 60; + M := value; +end; + +function MSF_TO_FRAMES(M: Integer; S: Integer; F: Integer): Integer; +begin + Result := M * 60 * CD_FPS + S * CD_FPS + F; +end; + +procedure SDL_VERSION(var X: TSDL_Version); +begin + X.major := SDL_MAJOR_VERSION; + X.minor := SDL_MINOR_VERSION; + X.patch := SDL_PATCHLEVEL; +end; + +function SDL_VERSIONNUM(X, Y, Z: Integer): Integer; +begin + Result := X * 1000 + Y * 100 + Z; +end; + +function SDL_COMPILEDVERSION: Integer; +begin + Result := SDL_VERSIONNUM(SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL + ); +end; + +function SDL_VERSION_ATLEAST(X, Y, Z: Integer): LongBool; +begin + Result := (SDL_COMPILEDVERSION >= SDL_VERSIONNUM(X, Y, Z)); +end; + +function SDL_LoadBMP(filename: PChar): PSDL_Surface; +begin + Result := SDL_LoadBMP_RW(SDL_RWFromFile(filename, 'rb'), 1); +end; + +function SDL_SaveBMP(surface: PSDL_Surface; filename: PChar): Integer; +begin + Result := SDL_SaveBMP_RW(surface, SDL_RWFromFile(filename, 'wb'), 1); +end; + +function SDL_BlitSurface(src: PSDL_Surface; srcrect: PSDL_Rect; dst: + PSDL_Surface; + dstrect: PSDL_Rect): Integer; +begin + Result := SDL_UpperBlit(src, srcrect, dst, dstrect); +end; + +function SDL_AllocSurface(flags: UInt32; width, height, depth: Integer; + RMask, GMask, BMask, AMask: UInt32): PSDL_Surface; +begin + Result := SDL_CreateRGBSurface(flags, width, height, depth, RMask, GMask, + BMask, AMask); +end; + +function SDL_MustLock(Surface: PSDL_Surface): Boolean; +begin + Result := ( ( surface^.offset <> 0 ) or + ( ( surface^.flags and ( SDL_HWSURFACE or SDL_ASYNCBLIT or SDL_RLEACCEL ) ) <> 0 ) ); +end; + +function SDL_LockMutex(mutex: PSDL_mutex): Integer; +begin + Result := SDL_mutexP(mutex); +end; + +function SDL_UnlockMutex(mutex: PSDL_mutex): Integer; +begin + Result := SDL_mutexV(mutex); +end; + +{$IFDEF WINDOWS} +function _putenv( const variable : Pchar ): Integer; +cdecl; external {$IFDEF __GPC__}name '_putenv'{$ELSE} 'MSVCRT.DLL'{$ENDIF __GPC__}; +{$ENDIF} + + +function SDL_putenv(const variable: PChar): Integer; +begin + {$IFDEF WINDOWS} + Result := _putenv(variable); + {$ENDIF} + + {$IFDEF UNIX} + {$IFDEF FPC} + Result := _putenv(variable); + {$ELSE} + Result := libc.putenv(variable); + {$ENDIF} + {$ENDIF} +end; + +{$IFDEF WINDOWS} +{$IFNDEF __GPC__} +function getenv( const name : Pchar ): PChar; +cdecl; external {$IFDEF __GPC__}name 'getenv'{$ELSE} 'MSVCRT.DLL'{$ENDIF}; +{$ENDIF} +{$ENDIF} + +function SDL_getenv(const name: PChar): PChar; +begin + {$IFDEF WINDOWS} + + {$IFDEF __GPC__} + Result := getenv( string( name ) ); + {$ELSE} + Result := getenv( name ); + {$ENDIF} + + {$ELSE} + + {$IFDEF UNIX} + + {$IFDEF FPC} + Result := fpgetenv(name); + {$ELSE} + Result := libc.getenv(name); + {$ENDIF} + + {$ENDIF} + + {$ENDIF} +end; + +function SDL_BUTTON( Button : Integer ) : Integer; +begin + Result := SDL_PRESSED shl ( Button - 1 ); +end; + +function SDL_Swap32(D: Uint32): Uint32; +begin + Result := ((D shl 24) or ((D shl 8) and $00FF0000) or ((D shr 8) and $0000FF00) or (D shr 24)); +end; + +procedure FreeAndNil(var Obj); +{$IFNDEF __GPC__} +{$IFNDEF __TMT__} +var + Temp: TObject; +{$ENDIF} +{$ENDIF} +begin +{$IFNDEF __GPC__} +{$IFNDEF __TMT__} + Temp := TObject(Obj); + Pointer(Obj) := nil; + Temp.Free; +{$ENDIF} +{$ENDIF} +end; + +{ Exit procedure handling } +type + PExitProcInfo = ^TExitProcInfo; + TExitProcInfo = record + Next: PExitProcInfo; + SaveExit: Pointer; + Proc: TProcedure; + end; + +var + ExitProcList: PExitProcInfo = nil; + +procedure DoExitProc; +var + P: PExitProcInfo; + Proc: TProcedure; +begin + P := ExitProcList; + ExitProcList := P^.Next; + ExitProc := P^.SaveExit; + Proc := P^.Proc; + Dispose(P); + Proc; +end; + +procedure AddExitProc(Proc: TProcedure); +var + P: PExitProcInfo; +begin + New(P); + P^.Next := ExitProcList; + P^.SaveExit := ExitProc; + P^.Proc := Proc; + ExitProcList := P; + ExitProc := @DoExitProc; +end; + +function IsBitOn( value : integer; bit : Byte ) : boolean; +begin + result := ( ( value and ( 1 shl bit ) ) <> 0 ); +end; + +function TurnBitOn( value : integer; bit : Byte ) : integer; +begin + result := ( value or ( 1 shl bit ) ); +end; + +function TurnBitOff( value : integer; bit : Byte ) : integer; +begin + result := ( value and not ( 1 shl bit ) ); +end; + +end. + + diff --git a/src/lib/JEDI-SDL/SDL/Pas/sdl_cpuinfo.pas b/src/lib/JEDI-SDL/SDL/Pas/sdl_cpuinfo.pas new file mode 100644 index 00000000..b09f19f9 --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/sdl_cpuinfo.pas @@ -0,0 +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. +
\ No newline at end of file diff --git a/src/lib/JEDI-SDL/SDL/Pas/sdlgameinterface.pas b/src/lib/JEDI-SDL/SDL/Pas/sdlgameinterface.pas new file mode 100644 index 00000000..9a58ff40 --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/sdlgameinterface.pas @@ -0,0 +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. diff --git a/src/lib/JEDI-SDL/SDL/Pas/sdli386utils.pas b/src/lib/JEDI-SDL/SDL/Pas/sdli386utils.pas new file mode 100644 index 00000000..4de4ebee --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/sdli386utils.pas @@ -0,0 +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. + + diff --git a/src/lib/JEDI-SDL/SDL/Pas/sdlinput.pas b/src/lib/JEDI-SDL/SDL/Pas/sdlinput.pas new file mode 100644 index 00000000..094f4e0f --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/sdlinput.pas @@ -0,0 +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. diff --git a/src/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas b/src/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas new file mode 100644 index 00000000..8ba3946f --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas @@ -0,0 +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. + diff --git a/src/lib/JEDI-SDL/SDL/Pas/sdlticks.pas b/src/lib/JEDI-SDL/SDL/Pas/sdlticks.pas new file mode 100644 index 00000000..a479b493 --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/sdlticks.pas @@ -0,0 +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. + +
\ No newline at end of file diff --git a/src/lib/JEDI-SDL/SDL/Pas/sdlutils.pas b/src/lib/JEDI-SDL/SDL/Pas/sdlutils.pas new file mode 100644 index 00000000..e01f3cdb --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/sdlutils.pas @@ -0,0 +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. + diff --git a/src/lib/JEDI-SDL/SDL/Pas/sdlwindow.pas b/src/lib/JEDI-SDL/SDL/Pas/sdlwindow.pas new file mode 100644 index 00000000..99eea304 --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/sdlwindow.pas @@ -0,0 +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. diff --git a/src/lib/JEDI-SDL/SDL/Pas/userpreferences.pas b/src/lib/JEDI-SDL/SDL/Pas/userpreferences.pas new file mode 100644 index 00000000..aed326d1 --- /dev/null +++ b/src/lib/JEDI-SDL/SDL/Pas/userpreferences.pas @@ -0,0 +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. |