diff options
Diffstat (limited to 'Game/Code/lib/JEDI-SDL/SDL/Pas/sdl.pas')
| -rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/sdl.pas | 4118 |
1 files changed, 4118 insertions, 0 deletions
diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdl.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdl.pas new file mode 100644 index 00000000..ad5d783a --- /dev/null +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdl.pas @@ -0,0 +1,4118 @@ +unit sdl;
+{
+ $Id: sdl.pas,v 1.17 2005/01/03 18:40:59 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 : }
+{ Dominqiue Louis <Dominique@SavageSoftware.com.au> }
+{ }
+{ Portions created by Dominqiue Louis are }
+{ Copyright (C) 2000 - 2004 Dominqiue 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 1.17 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
+
+}
+{******************************************************************************}
+
+{$I jedi-sdl.inc}
+
+{$ALIGN ON}
+
+interface
+
+uses
+{$IFDEF __GPC__}
+ system,
+ gpc;
+{$ENDIF}
+
+{$IFDEF WIN32}
+ {$IFNDEF __GPC__}
+ Windows;
+ {$ENDIF}
+{$ENDIF}
+
+{$IFDEF UNIX}
+ {$IFDEF FPC}
+ {$IFDEF Ver1_0}
+ linux,
+ {$ELSE}
+ pthreads,
+ baseunix,
+ unix,
+ {$ENDIF}
+ x,
+ xlib;
+ {$ELSE}
+ Types,
+ Libc,
+ Xlib;
+ {$ENDIF}
+{$ENDIF}
+
+{$IFDEF __MACH__}
+ GPCMacOSAll;
+{$ENDIF}
+
+const
+{$IFDEF WIN32}
+ SDLLibName = 'SDL.dll';
+{$ENDIF}
+
+{$IFDEF UNIX}
+{$IFDEF DARWIN}
+ SDLLibName = 'libSDL.dylib';
+{$ELSE}
+ SDLLibName = 'libSDL.so';
+{$ENDIF}
+{$ENDIF}
+
+{$IFDEF MACOS}
+ SDLLibName = 'SDL';
+{$ENDIF}
+
+ // 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_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 = 8;
+{$EXTERNALSYM SDL_PATCHLEVEL}
+
+ // SDL_events.h constants
+ SDL_NOEVENT = 0; // Unused (do not remove)
+{$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}
+
+ // 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
+ Button 5: Mouse Wheel Down
+ }
+ 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;
+{$EXTERNALSYM SDL_BUTTON_WHEELDOWN}
+ SDL_BUTTON_LMASK = SDL_PRESSED shl (SDL_BUTTON_LEFT - 1);
+{$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_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;
+ UInt8 = Byte;
+{$EXTERNALSYM UInt8}
+ TUInt8Array = array [0..MAXINT shr 1] of UInt8;
+
+ PUInt16 = ^UInt16;
+ UInt16 = word;
+{$EXTERNALSYM UInt16}
+
+ 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 Win32}
+ 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;
+ {$IFDEF FPC}
+ event : TXEvent;
+ {$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
+{$IFDEF Win32}
+ PSDL_SysWMinfo = ^TSDL_SysWMinfo;
+ TSDL_SysWMinfo = record
+ version : TSDL_version;
+ window : HWnd; // The display window
+ end;
+{$ELSE}
+
+// The Linux custom window manager information structure
+{$IFDEF Unix}
+ TX11 = record
+ display : PDisplay; // The X11 display
+ window : TWindow ; // The X11 display window */
+ {* These locking functions should be called around
+ any X11 functions using the display variable.
+ They lock the event thread, so should not be
+ called around event functions or from event filters.
+ *}
+ lock_func : Pointer;
+ unlock_func : Pointer;
+
+ // Introduced in SDL 1.0.2
+ fswindow : TWindow ; // The X11 fullscreen window */
+ wmwindow : TWindow ; // The X11 managed input window */
+ end;
+
+ PSDL_SysWMinfo = ^TSDL_SysWMinfo;
+ TSDL_SysWMinfo = record
+ version : TSDL_version ;
+ subsystem : TSDL_SysWm;
+ X11 : TX11;
+ end;
+{$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;
+
+{$IFDEF WIN32}
+ {PPrivate_hwdata = ^TPrivate_hwdata;
+ TPrivate_hwdata = record
+ dd_surface : IDIRECTDRAWSURFACE3;
+ dd_writebuf : IDIRECTDRAWSURFACE3;
+ end;}
+ {ELSE}
+{$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
+ 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: PUInt8;
+ // An array of pointers to teh 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);
+
+
+
+ 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 WIN32}
+ 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 __MACH__}
+ {$define USE_NAMED_SEMAPHORES}
+ // Broken sem_getvalue() in MacOS X Public Beta */
+ {$define BROKEN_SEMGETVALUE}
+{$ENDIF}
+
+PSDL_semaphore = ^TSDL_semaphore;
+{$IFDEF WIN32}
+ // Win32 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 WIN32}
+ TSYS_ThreadHandle = THandle;
+{$ENDIF}
+
+{$IFDEF Unix}
+ TSYS_ThreadHandle = pthread_t;
+{$ENDIF}
+
+ { This is the system-independent thread info structure }
+ PSDL_Thread = ^TSDL_Thread;
+ TSDL_Thread = record
+ threadid: UInt32;
+ handle: TSYS_ThreadHandle;
+ status: Integer;
+ errbuf: TSDL_Error;
+ data: Pointer;
+ end;
+
+ // Helper Types
+
+ // Keyboard State Array ( See demos for how to use )
+ PKeyStateArr = ^TKeyStateArr;
+ TKeyStateArr = array[0..65000] of UInt8;
+
+ // Types required so we don't need to use Windows.pas
+ PInteger = ^Integer;
+ PByte = ^Byte;
+ PWord = ^Word;
+ PLongWord = ^Longword;
+
+ // General arrays
+ PByteArray = ^TByteArray;
+ TByteArray = array[0..32767] of Byte;
+
+ PWordArray = ^TWordArray;
+ TWordArray = array[0..16383] of Word;
+
+ PPoint = ^TPoint;
+ TPoint = record
+ x: Longint;
+ y: Longint;
+ end;
+
+ PRect = ^TRect;
+ TRect = record
+ case Integer of
+ 0: (Left, Top, Right, Bottom: Integer);
+ 1: (TopLeft, BottomRight: TPoint);
+ end;
+
+ { Generic procedure pointer }
+ TProcedure = procedure;
+
+{------------------------------------------------------------------------------}
+{ initialization }
+{------------------------------------------------------------------------------}
+
+{ This function loads the SDL dynamically linked library and initializes
+ the subsystems specified by 'flags' (and those satisfying dependencies)
+ Unless the SDL_INIT_NOPARACHUTE flag is set, it will install cleanup
+ signal handlers for some commonly ignored fatal signals (like SIGSEGV) }
+
+function SDL_Init( flags : UInt32 ) : Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_Init'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_Init}
+
+// This function initializes specific SDL subsystems
+function SDL_InitSubSystem( flags : UInt32 ) : Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_InitSubSystem'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_InitSubSystem}
+
+// This function cleans up specific SDL subsystems
+procedure SDL_QuitSubSystem( flags : UInt32 );
+cdecl; external {$IFDEF __GPC__}name 'SDL_QuitSubSystem'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_QuitSubSystem}
+
+{ This function returns mask of the specified subsystems which have
+ been initialized.
+ If 'flags' is 0, it returns a mask of all initialized subsystems. }
+
+function SDL_WasInit( flags : UInt32 ): UInt32;
+cdecl; external {$IFDEF __GPC__}name 'SDL_WasInit'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_WasInit}
+
+{ This function cleans up all initialized subsystems and unloads the
+ dynamically linked library. You should call it upon all exit conditions. }
+procedure SDL_Quit;
+cdecl; external {$IFDEF __GPC__}name 'SDL_Quit'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_Quit}
+
+{$IFDEF WIN32}
+// This should be called from your WinMain() function, if any
+function SDL_RegisterApp(name: PChar; style: UInt32; h_Inst: Pointer): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_RegisterApp'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_RegisterApp}
+{$ENDIF}
+
+{$IFDEF __MACH__}
+// This should be called from your main() function, if any
+procedure SDL_InitQuickDraw( the_qd: QDGlobals );
+cdecl; external {$IFDEF __GPC__}name 'SDL_InitQuickDraw'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_GetError'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GetError}
+procedure SDL_SetError(fmt: PChar);
+cdecl; external {$IFDEF __GPC__}name 'SDL_SetError'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SetError}
+procedure SDL_ClearError;
+cdecl; external {$IFDEF __GPC__}name 'SDL_ClearError'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_ClearError}
+
+{$IFNDEF WIN32}
+procedure SDL_Error(Code: TSDL_errorcode);
+cdecl; external {$IFDEF __GPC__}name 'SDL_Error'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_Error}
+{$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 {$IFDEF __GPC__}name 'SDL_RWFromFile'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_RWFromFile}
+procedure SDL_FreeRW(area: PSDL_RWops);
+cdecl; external {$IFDEF __GPC__}name 'SDL_FreeRW'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_FreeRW}
+
+//fp is FILE *fp ???
+function SDL_RWFromFP(fp: Pointer; autoclose: Integer): PSDL_RWops;
+cdecl; external {$IFDEF __GPC__}name 'SDL_RWFromFP'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_RWFromFP}
+function SDL_RWFromMem(mem: Pointer; size: Integer): PSDL_RWops;
+cdecl; external {$IFDEF __GPC__}name 'SDL_RWFromMem'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_RWFromMem}
+function SDL_RWFromConstMem(const mem: Pointer; size: Integer) : PSDL_RWops;
+cdecl; external {$IFDEF __GPC__}name 'SDL_RWFromConstMem'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_RWFromConstMem}
+function SDL_AllocRW: PSDL_RWops;
+cdecl; external {$IFDEF __GPC__}name 'SDL_AllocRW'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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;
+{$EXTERNALSYM SDL_RWClose}
+
+{------------------------------------------------------------------------------}
+{ time-handling }
+{------------------------------------------------------------------------------}
+
+{ Get the number of milliseconds since the SDL library initialization. }
+{ Note that this value wraps if the program runs for more than ~49 days. }
+function SDL_GetTicks: UInt32;
+cdecl; external {$IFDEF __GPC__}name 'SDL_GetTicks'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GetTicks}
+
+// Wait a specified number of milliseconds before returning
+procedure SDL_Delay(msec: UInt32);
+cdecl; external {$IFDEF __GPC__}name 'SDL_Delay'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_Delay}
+
+{ Add a new timer to the pool of timers already running. }
+{ Returns a timer ID, or NULL when an error occurs. }
+function SDL_AddTimer(interval: UInt32; callback: TSDL_NewTimerCallback; param : Pointer): PSDL_TimerID;
+cdecl; external {$IFDEF __GPC__}name 'SDL_AddTimer'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_AddTimer}
+
+{ Remove one of the multiple timers knowing its ID. }
+{ Returns a boolean value indicating success. }
+function SDL_RemoveTimer(t: PSDL_TimerID): TSDL_Bool;
+cdecl; external {$IFDEF __GPC__}name 'SDL_RemoveTimer'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_RemoveTimer}
+
+function SDL_SetTimer(interval: UInt32; callback: TSDL_TimerCallback): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_SetTimer'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SetTimer}
+
+{------------------------------------------------------------------------------}
+{ audio-routines }
+{------------------------------------------------------------------------------}
+
+{ These functions are used internally, and should not be used unless you
+ have a specific need to specify the audio driver you want to use.
+ You should normally use SDL_Init() or SDL_InitSubSystem(). }
+
+function SDL_AudioInit(driver_name: PChar): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_AudioInit'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_AudioInit}
+procedure SDL_AudioQuit;
+cdecl; external {$IFDEF __GPC__}name 'SDL_AudioQuit'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_AudioQuit}
+
+{ This function fills the given character buffer with the name of the
+ current audio driver, and returns a Pointer to it if the audio driver has
+ been initialized. It returns NULL if no driver has been initialized. }
+
+function SDL_AudioDriverName(namebuf: PChar; maxlen: Integer): PChar;
+cdecl; external {$IFDEF __GPC__}name 'SDL_AudioDriverName'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_OpenAudio'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_OpenAudio}
+
+{ Get the current audio state: }
+function SDL_GetAudioStatus: TSDL_Audiostatus;
+cdecl; external {$IFDEF __GPC__}name 'SDL_GetAudioStatus'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GetAudioStatus}
+
+{ This function pauses and unpauses the audio callback processing.
+ It should be called with a parameter of 0 after opening the audio
+ device to start playing sound. This is so you can safely initialize
+ data for your callback function after opening the audio device.
+ Silence will be written to the audio device during the pause. }
+
+procedure SDL_PauseAudio(pause_on: Integer);
+cdecl; external {$IFDEF __GPC__}name 'SDL_PauseAudio'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_PauseAudio}
+
+{ This function loads a WAVE from the data source, automatically freeing
+ that source if 'freesrc' is non-zero. For example, to load a WAVE file,
+ you could do:
+ SDL_LoadWAV_RW(SDL_RWFromFile("sample.wav", "rb"), 1, ...);
+
+ If this function succeeds, it returns the given SDL_AudioSpec,
+ filled with the audio data format of the wave data, and sets
+ 'audio_buf' to a malloc()'d buffer containing the audio data,
+ and sets 'audio_len' to the length of that audio buffer, in bytes.
+ You need to free the audio buffer with SDL_FreeWAV() when you are
+ done with it.
+
+ This function returns NULL and sets the SDL error message if the
+ wave file cannot be opened, uses an unknown data format, or is
+ corrupt. Currently raw and MS-ADPCM WAVE files are supported. }
+
+function SDL_LoadWAV_RW(src: PSDL_RWops; freesrc: Integer; spec:
+ PSDL_AudioSpec; audio_buf: PUInt8; audiolen: PUInt32): PSDL_AudioSpec;
+cdecl; external {$IFDEF __GPC__}name 'SDL_LoadWAV_RW'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_LoadWAV_RW}
+
+// Compatibility convenience function -- loads a WAV from a file
+function SDL_LoadWAV(filename: PChar; spec: PSDL_AudioSpec; audio_buf:
+ PUInt8; audiolen: PUInt32): PSDL_AudioSpec;
+{$EXTERNALSYM SDL_LoadWAV}
+
+{ This function frees data previously allocated with SDL_LoadWAV_RW() }
+
+procedure SDL_FreeWAV(audio_buf: PUInt8);
+cdecl; external {$IFDEF __GPC__}name 'SDL_FreeWAV'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_BuildAudioCVT'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_ConvertAudio'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_MixAudio'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_LockAudio'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_LockAudio}
+procedure SDL_UnlockAudio;
+cdecl; external {$IFDEF __GPC__}name 'SDL_UnlockAudio'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_UnlockAudio}
+
+{ This function shuts down audio processing and closes the audio device. }
+
+procedure SDL_CloseAudio;
+cdecl; external {$IFDEF __GPC__}name 'SDL_CloseAudio'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_CDNumDrives'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_CDName'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_CDOpen'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_CDStatus'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_CDPlayTracks'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_CDPlay'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_CDPlay}
+
+// Pause play -- returns 0, or -1 on error
+function SDL_CDPause(cdrom: PSDL_CD): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_CDPause'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_CDPause}
+
+// Resume play -- returns 0, or -1 on error
+function SDL_CDResume(cdrom: PSDL_CD): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_CDResume'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_CDResume}
+
+// Stop play -- returns 0, or -1 on error
+function SDL_CDStop(cdrom: PSDL_CD): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_CDStop'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_CDStop}
+
+// Eject CD-ROM -- returns 0, or -1 on error
+function SDL_CDEject(cdrom: PSDL_CD): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_CDEject'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_CDEject}
+
+// Closes the handle for the CD-ROM drive
+procedure SDL_CDClose(cdrom: PSDL_CD);
+cdecl; external {$IFDEF __GPC__}name 'SDL_CDClose'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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;
+{$EXTERNALSYM MSF_TO_FRAMES}
+
+{------------------------------------------------------------------------------}
+{ JoyStick-routines }
+{------------------------------------------------------------------------------}
+
+{ Count the number of joysticks attached to the system }
+function SDL_NumJoysticks: Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_NumJoysticks'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_NumJoysticks}
+
+{ Get the implementation dependent name of a joystick.
+ This can be called before any joysticks are opened.
+ If no name can be found, this function returns NULL. }
+function SDL_JoystickName(index: Integer): PChar;
+cdecl; external {$IFDEF __GPC__}name 'SDL_JoystickName'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_JoystickName}
+
+{ Open a joystick for use - the index passed as an argument refers to
+ the N'th joystick on the system. This index is the value which will
+ identify this joystick in future joystick events.
+
+ This function returns a joystick identifier, or NULL if an error occurred. }
+function SDL_JoystickOpen(index: Integer): PSDL_Joystick;
+cdecl; external {$IFDEF __GPC__}name 'SDL_JoystickOpen'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_JoystickOpen}
+
+{ Returns 1 if the joystick has been opened, or 0 if it has not. }
+function SDL_JoystickOpened(index: Integer): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_JoystickOpened'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_JoystickOpened}
+
+{ Get the device index of an opened joystick. }
+function SDL_JoystickIndex(joystick: PSDL_Joystick): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_JoystickIndex'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_JoystickIndex}
+
+{ Get the number of general axis controls on a joystick }
+function SDL_JoystickNumAxes(joystick: PSDL_Joystick): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_JoystickNumAxes'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_JoystickNumAxes}
+
+{ Get the number of trackballs on a joystick
+ Joystick trackballs have only relative motion events associated
+ with them and their state cannot be polled. }
+function SDL_JoystickNumBalls(joystick: PSDL_Joystick): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_JoystickNumBalls'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_JoystickNumBalls}
+
+
+{ Get the number of POV hats on a joystick }
+function SDL_JoystickNumHats(joystick: PSDL_Joystick): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_JoystickNumHats'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_JoystickNumHats}
+
+{ Get the number of buttons on a joystick }
+function SDL_JoystickNumButtons(joystick: PSDL_Joystick): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_JoystickNumButtons'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_JoystickNumButtons}
+
+{ Update the current state of the open joysticks.
+ This is called automatically by the event loop if any joystick
+ events are enabled. }
+
+procedure SDL_JoystickUpdate;
+cdecl; external {$IFDEF __GPC__}name 'SDL_JoystickUpdate'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_JoystickUpdate;}
+
+{ Enable/disable joystick event polling.
+ If joystick events are disabled, you must call SDL_JoystickUpdate()
+ yourself and check the state of the joystick when you want joystick
+ information.
+ The state can be one of SDL_QUERY, SDL_ENABLE or SDL_IGNORE. }
+
+function SDL_JoystickEventState(state: Integer): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_JoystickEventState'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_JoystickEventState}
+
+{ Get the current state of an axis control on a joystick
+ The state is a value ranging from -32768 to 32767.
+ The axis indices start at index 0. }
+
+function SDL_JoystickGetAxis(joystick: PSDL_Joystick; axis: Integer) : SInt16;
+cdecl; external {$IFDEF __GPC__}name 'SDL_JoystickGetAxis'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_JoystickGetAxis}
+
+{ The hat indices start at index 0. }
+
+function SDL_JoystickGetHat(joystick: PSDL_Joystick; hat: Integer): UInt8;
+cdecl; external {$IFDEF __GPC__}name 'SDL_JoystickGetHat'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_JoystickGetHat}
+
+{ Get the ball axis change since the last poll
+ This returns 0, or -1 if you passed it invalid parameters.
+ The ball indices start at index 0. }
+
+function SDL_JoystickGetBall(joystick: PSDL_Joystick; ball: Integer; var dx: Integer; var dy: Integer): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_JoystickGetBall'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_JoystickGetBall}
+
+{ Get the current state of a button on a joystick
+ The button indices start at index 0. }
+function SDL_JoystickGetButton( joystick: PSDL_Joystick; Button: Integer): UInt8;
+cdecl; external {$IFDEF __GPC__}name 'SDL_JoystickGetButton'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_JoystickGetButton}
+
+{ Close a joystick previously opened with SDL_JoystickOpen() }
+procedure SDL_JoystickClose(joystick: PSDL_Joystick);
+cdecl; external {$IFDEF __GPC__}name 'SDL_JoystickClose'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_JoystickClose}
+
+{------------------------------------------------------------------------------}
+{ event-handling }
+{------------------------------------------------------------------------------}
+
+{ Pumps the event loop, gathering events from the input devices.
+ This function updates the event queue and internal input device state.
+ This should only be run in the thread that sets the video mode. }
+
+procedure SDL_PumpEvents;
+cdecl; external {$IFDEF __GPC__}name 'SDL_PumpEvents'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_PumpEvents;}
+
+{ Checks the event queue for messages and optionally returns them.
+ If 'action' is SDL_ADDEVENT, up to 'numevents' events will be added to
+ the back of the event queue.
+ If 'action' is SDL_PEEKEVENT, up to 'numevents' events at the front
+ of the event queue, matching 'mask', will be returned and will not
+ be removed from the queue.
+ If 'action' is SDL_GETEVENT, up to 'numevents' events at the front
+ of the event queue, matching 'mask', will be returned and will be
+ removed from the queue.
+ This function returns the number of events actually stored, or -1
+ if there was an error. This function is thread-safe. }
+
+function SDL_PeepEvents(events: PSDL_Event; numevents: Integer; action: TSDL_eventaction; mask: UInt32): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_PeepEvents'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_PeepEvents}
+
+{ Polls for currently pending events, and returns 1 if there are any pending
+ events, or 0 if there are none available. If 'event' is not NULL, the next
+ event is removed from the queue and stored in that area. }
+
+function SDL_PollEvent(event: PSDL_Event): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_PollEvent'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_PollEvent}
+
+{ Waits indefinitely for the next available event, returning 1, or 0 if there
+ was an error while waiting for events. If 'event' is not NULL, the next
+ event is removed from the queue and stored in that area. }
+
+function SDL_WaitEvent(event: PSDL_Event): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_WaitEvent'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_WaitEvent}
+
+function SDL_PushEvent( event : PSDL_Event ) : Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_PushEvent'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_PushEvent}
+
+{ If the filter returns 1, then the event will be added to the internal queue.
+ If it returns 0, then the event will be dropped from the queue, but the
+ internal state will still be updated. This allows selective filtering of
+ dynamically arriving events.
+
+ WARNING: Be very careful of what you do in the event filter function, as
+ it may run in a different thread!
+
+ There is one caveat when dealing with the SDL_QUITEVENT event type. The
+ event filter is only called when the window manager desires to close the
+ application window. If the event filter returns 1, then the window will
+ be closed, otherwise the window will remain open if possible.
+ If the quit event is generated by an interrupt signal, it will bypass the
+ internal queue and be delivered to the application at the next event poll. }
+procedure SDL_SetEventFilter( filter : TSDL_EventFilter );
+cdecl; external {$IFDEF __GPC__}name 'SDL_SetEventFilter'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SetEventFilter}
+
+{ Return the current event filter - can be used to "chain" filters.
+ If there is no event filter set, this function returns NULL. }
+
+function SDL_GetEventFilter: TSDL_EventFilter;
+cdecl; external {$IFDEF __GPC__}name 'SDL_GetEventFilter'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GetEventFilter}
+
+{ This function allows you to set the state of processing certain events.
+ If 'state' is set to SDL_IGNORE, that event will be automatically dropped
+ from the event queue and will not event be filtered.
+ If 'state' is set to SDL_ENABLE, that event will be processed normally.
+ If 'state' is set to SDL_QUERY, SDL_EventState() will return the
+ current processing state of the specified event. }
+
+function SDL_EventState(type_: UInt8; state: Integer): UInt8;
+cdecl; external {$IFDEF __GPC__}name 'SDL_EventState'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_EventState}
+
+{------------------------------------------------------------------------------}
+{ Version Routines }
+{------------------------------------------------------------------------------}
+
+{ This macro can be used to fill a version structure with the compile-time
+ version of the SDL library. }
+procedure SDL_VERSION(var X: TSDL_Version);
+{$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;
+{$EXTERNALSYM SDL_VERSION_ATLEAST}
+
+{ This function gets the version of the dynamically linked SDL library.
+ it should NOT be used to fill a version structure, instead you should
+ use the SDL_Version() macro. }
+
+function SDL_Linked_Version: PSDL_version;
+cdecl; external {$IFDEF __GPC__}name 'SDL_Linked_Version'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_Linked_Version}
+
+{------------------------------------------------------------------------------}
+{ video }
+{------------------------------------------------------------------------------}
+
+{ These functions are used internally, and should not be used unless you
+ have a specific need to specify the video driver you want to use.
+ You should normally use SDL_Init() or SDL_InitSubSystem().
+
+ SDL_VideoInit() initializes the video subsystem -- sets up a connection
+ to the window manager, etc, and determines the current video mode and
+ pixel format, but does not initialize a window or graphics mode.
+ Note that event handling is activated by this routine.
+
+ If you use both sound and video in your application, you need to call
+ SDL_Init() before opening the sound device, otherwise under Win32 DirectX,
+ you won't be able to set full-screen display modes. }
+
+function SDL_VideoInit(driver_name: PChar; flags: UInt32): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_VideoInit'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_VideoInit}
+procedure SDL_VideoQuit;
+cdecl; external {$IFDEF __GPC__}name 'SDL_VideoQuit'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_VideoQuit}
+
+{ This function fills the given character buffer with the name of the
+ video driver, and returns a pointer to it if the video driver has
+ been initialized. It returns NULL if no driver has been initialized. }
+
+function SDL_VideoDriverName(namebuf: PChar; maxlen: Integer): PChar;
+cdecl; external {$IFDEF __GPC__}name 'SDL_VideoDriverName'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_VideoDriverName}
+
+{ This function returns a pointer to the current display surface.
+ If SDL is doing format conversion on the display surface, this
+ function returns the publicly visible surface, not the real video
+ surface. }
+
+function SDL_GetVideoSurface: PSDL_Surface;
+cdecl; external {$IFDEF __GPC__}name 'SDL_GetVideoSurface'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GetVideoSurface}
+
+{ This function returns a read-only pointer to information about the
+ video hardware. If this is called before SDL_SetVideoMode(), the 'vfmt'
+ member of the returned structure will contain the pixel format of the
+ "best" video mode. }
+function SDL_GetVideoInfo: PSDL_VideoInfo;
+cdecl; external {$IFDEF __GPC__}name 'SDL_GetVideoInfo'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GetVideoInfo}
+
+{ Check to see if a particular video mode is supported.
+ It returns 0 if the requested mode is not supported under any bit depth,
+ or returns the bits-per-pixel of the closest available mode with the
+ given width and height. If this bits-per-pixel is different from the
+ one used when setting the video mode, SDL_SetVideoMode() will succeed,
+ but will emulate the requested bits-per-pixel with a shadow surface.
+
+ The arguments to SDL_VideoModeOK() are the same ones you would pass to
+ SDL_SetVideoMode() }
+
+function SDL_VideoModeOK(width, height, bpp: Integer; flags: UInt32): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_VideoModeOK'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_VideoModeOK}
+
+{ Return a pointer to an array of available screen dimensions for the
+ given format and video flags, sorted largest to smallest. Returns
+ NULL if there are no dimensions available for a particular format,
+ or (SDL_Rect **)-1 if any dimension is okay for the given format.
+
+ if 'format' is NULL, the mode list will be for the format given
+ by SDL_GetVideoInfo( ) - > vfmt }
+
+function SDL_ListModes(format: PSDL_PixelFormat; flags: UInt32): PPSDL_Rect;
+cdecl; external {$IFDEF __GPC__}name 'SDL_ListModes'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_SetVideoMode'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SetVideoMode}
+
+
+{ Makes sure the given list of rectangles is updated on the given screen.
+ If 'x', 'y', 'w' and 'h' are all 0, SDL_UpdateRect will update the entire
+ screen.
+ These functions should not be called while 'screen' is locked. }
+
+procedure SDL_UpdateRects(screen: PSDL_Surface; numrects: Integer; rects: PSDL_Rect);
+cdecl; external {$IFDEF __GPC__}name 'SDL_UpdateRects'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_UpdateRects}
+procedure SDL_UpdateRect(screen: PSDL_Surface; x, y: SInt32; w, h: UInt32);
+cdecl; external {$IFDEF __GPC__}name 'SDL_UpdateRect'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_UpdateRect}
+
+
+{ On hardware that supports double-buffering, this function sets up a flip
+ and returns. The hardware will wait for vertical retrace, and then swap
+ video buffers before the next video surface blit or lock will return.
+ On hardware that doesn not support double-buffering, this is equivalent
+ to calling SDL_UpdateRect(screen, 0, 0, 0, 0);
+ The SDL_DOUBLEBUF flag must have been passed to SDL_SetVideoMode() when
+ setting the video mode for this function to perform hardware flipping.
+ This function returns 0 if successful, or -1 if there was an error.}
+
+function SDL_Flip(screen: PSDL_Surface): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_Flip'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_Flip}
+
+{ Set the gamma correction for each of the color channels.
+ The gamma values range (approximately) between 0.1 and 10.0
+
+ If this function isn't supported directly by the hardware, it will
+ be emulated using gamma ramps, if available. If successful, this
+ function returns 0, otherwise it returns -1. }
+
+function SDL_SetGamma(redgamma: single; greengamma: single; bluegamma: single ): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_SetGamma'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SetGamma}
+
+{ Set the gamma translation table for the red, green, and blue channels
+ of the video hardware. Each table is an array of 256 16-bit quantities,
+ representing a mapping between the input and output for that channel.
+ The input is the index into the array, and the output is the 16-bit
+ gamma value at that index, scaled to the output color precision.
+
+ You may pass NULL for any of the channels to leave it unchanged.
+ If the call succeeds, it will return 0. If the display driver or
+ hardware does not support gamma translation, or otherwise fails,
+ this function will return -1. }
+
+function SDL_SetGammaRamp( redtable: PUInt16; greentable: PUInt16; bluetable: PUInt16): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_SetGammaRamp'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SetGammaRamp}
+
+{ Retrieve the current values of the gamma translation tables.
+
+ You must pass in valid pointers to arrays of 256 16-bit quantities.
+ Any of the pointers may be NULL to ignore that channel.
+ If the call succeeds, it will return 0. If the display driver or
+ hardware does not support gamma translation, or otherwise fails,
+ this function will return -1. }
+
+function SDL_GetGammaRamp( redtable: PUInt16; greentable: PUInt16; bluetable: PUInt16): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_GetGammaRamp'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GetGammaRamp}
+
+{ Sets a portion of the colormap for the given 8-bit surface. If 'surface'
+ is not a palettized surface, this function does nothing, returning 0.
+ If all of the colors were set as passed to SDL_SetColors(), it will
+ return 1. If not all the color entries were set exactly as given,
+ it will return 0, and you should look at the surface palette to
+ determine the actual color palette.
+
+ When 'surface' is the surface associated with the current display, the
+ display colormap will be updated with the requested colors. If
+ SDL_HWPALETTE was set in SDL_SetVideoMode() flags, SDL_SetColors()
+ will always return 1, and the palette is guaranteed to be set the way
+ you desire, even if the window colormap has to be warped or run under
+ emulation. }
+
+
+function SDL_SetColors(surface: PSDL_Surface; colors: PSDL_Color; firstcolor : Integer; ncolors: Integer) : Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_SetColors'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SetColors}
+
+{ Sets a portion of the colormap for a given 8-bit surface.
+ 'flags' is one or both of:
+ SDL_LOGPAL -- set logical palette, which controls how blits are mapped
+ to/from the surface,
+ SDL_PHYSPAL -- set physical palette, which controls how pixels look on
+ the screen
+ Only screens have physical palettes. Separate change of physical/logical
+ palettes is only possible if the screen has SDL_HWPALETTE set.
+
+ The return value is 1 if all colours could be set as requested, and 0
+ otherwise.
+
+ SDL_SetColors() is equivalent to calling this function with
+ flags = (SDL_LOGPAL or SDL_PHYSPAL). }
+
+function SDL_SetPalette(surface: PSDL_Surface; flags: Integer; colors: PSDL_Color; firstcolor: Integer; ncolors: Integer): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_SetPalette'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SetPalette}
+
+{ Maps an RGB triple to an opaque pixel value for a given pixel format }
+function SDL_MapRGB(format: PSDL_PixelFormat; r: UInt8; g: UInt8; b: UInt8) : UInt32;
+cdecl; external {$IFDEF __GPC__}name 'SDL_MapRGB'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_MapRGB}
+
+{ Maps an RGBA quadruple to a pixel value for a given pixel format }
+function SDL_MapRGBA(format: PSDL_PixelFormat; r: UInt8; g: UInt8; b: UInt8; a: UInt8): UInt32;
+cdecl; external {$IFDEF __GPC__}name 'SDL_MapRGBA'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_MapRGBA}
+
+{ Maps a pixel value into the RGB components for a given pixel format }
+procedure SDL_GetRGB(pixel: UInt32; fmt: PSDL_PixelFormat; r: PUInt8; g: PUInt8; b: PUInt8);
+cdecl; external {$IFDEF __GPC__}name 'SDL_GetRGB'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GetRGB}
+
+{ Maps a pixel value into the RGBA components for a given pixel format }
+procedure SDL_GetRGBA(pixel: UInt32; fmt: PSDL_PixelFormat; r: PUInt8; g: PUInt8; b: PUInt8; a: PUInt8);
+cdecl; external {$IFDEF __GPC__}name 'SDL_GetRGBA'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_CreateRGBSurface'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_CreateRGBSurface}
+
+function SDL_CreateRGBSurfaceFrom(pixels: Pointer; width, height, depth, pitch
+ : Integer; RMask, GMask, BMask, AMask: UInt32): PSDL_Surface;
+cdecl; external {$IFDEF __GPC__}name 'SDL_CreateRGBSurfaceFrom'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_CreateRGBSurfaceFrom}
+
+procedure SDL_FreeSurface(surface: PSDL_Surface);
+cdecl; external {$IFDEF __GPC__}name 'SDL_FreeSurface'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_FreeSurface}
+
+function SDL_MustLock(Surface: PSDL_Surface): Boolean;
+{$EXTERNALSYM SDL_MustLock}
+{ SDL_LockSurface() sets up a surface for directly accessing the pixels.
+ Between calls to SDL_LockSurface()/SDL_UnlockSurface(), you can write
+ to and read from 'surface->pixels', using the pixel format stored in
+ 'surface->format'. Once you are done accessing the surface, you should
+ use SDL_UnlockSurface() to release it.
+
+ Not all surfaces require locking. If SDL_MUSTLOCK(surface) evaluates
+ to 0, then you can read and write to the surface at any time, and the
+ pixel format of the surface will not change. In particular, if the
+ SDL_HWSURFACE flag is not given when calling SDL_SetVideoMode(), you
+ will not need to lock the display surface before accessing it.
+
+ No operating system or library calls should be made between lock/unlock
+ pairs, as critical system locks may be held during this time.
+
+ SDL_LockSurface() returns 0, or -1 if the surface couldn't be locked. }
+function SDL_LockSurface(surface: PSDL_Surface): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_LockSurface'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_LockSurface}
+
+procedure SDL_UnlockSurface(surface: PSDL_Surface);
+cdecl; external {$IFDEF __GPC__}name 'SDL_UnlockSurface'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_UnlockSurface}
+
+{ Load a surface from a seekable SDL data source (memory or file.)
+ If 'freesrc' is non-zero, the source will be closed after being read.
+ Returns the new surface, or NULL if there was an error.
+ The new surface should be freed with SDL_FreeSurface(). }
+function SDL_LoadBMP_RW(src: PSDL_RWops; freesrc: Integer): PSDL_Surface;
+cdecl; external {$IFDEF __GPC__}name 'SDL_LoadBMP_RW'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_LoadBMP_RW}
+
+// Convenience macro -- load a surface from a file
+function SDL_LoadBMP(filename: PChar): PSDL_Surface;
+{$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 {$IFDEF __GPC__}name 'SDL_SaveBMP_RW'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SaveBMP_RW}
+
+// Convenience macro -- save a surface to a file
+function SDL_SaveBMP(surface: PSDL_Surface; filename: PChar): Integer;
+{$EXTERNALSYM SDL_SaveBMP}
+
+{ Sets the color key (transparent pixel) in a blittable surface.
+ If 'flag' is SDL_SRCCOLORKEY (optionally OR'd with SDL_RLEACCEL),
+ 'key' will be the transparent pixel in the source image of a blit.
+ SDL_RLEACCEL requests RLE acceleration for the surface if present,
+ and removes RLE acceleration if absent.
+ If 'flag' is 0, this function clears any current color key.
+ This function returns 0, or -1 if there was an error. }
+
+function SDL_SetColorKey(surface: PSDL_Surface; flag, key: UInt32) : Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_SetColorKey'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SetColorKey}
+
+{ This function sets the alpha value for the entire surface, as opposed to
+ using the alpha component of each pixel. This value measures the range
+ of transparency of the surface, 0 being completely transparent to 255
+ being completely opaque. An 'alpha' value of 255 causes blits to be
+ opaque, the source pixels copied to the destination (the default). Note
+ that per-surface alpha can be combined with colorkey transparency.
+
+ If 'flag' is 0, alpha blending is disabled for the surface.
+ If 'flag' is SDL_SRCALPHA, alpha blending is enabled for the surface.
+ OR:ing the flag with SDL_RLEACCEL requests RLE acceleration for the
+ surface; if SDL_RLEACCEL is not specified, the RLE accel will be removed. }
+
+
+function SDL_SetAlpha(surface: PSDL_Surface; flag: UInt32; alpha: UInt8): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_SetAlpha'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SetAlpha}
+
+{ Sets the clipping rectangle for the destination surface in a blit.
+
+ If the clip rectangle is NULL, clipping will be disabled.
+ If the clip rectangle doesn't intersect the surface, the function will
+ return SDL_FALSE and blits will be completely clipped. Otherwise the
+ function returns SDL_TRUE and blits to the surface will be clipped to
+ the intersection of the surface area and the clipping rectangle.
+
+ Note that blits are automatically clipped to the edges of the source
+ and destination surfaces. }
+procedure SDL_SetClipRect(surface: PSDL_Surface; rect: PSDL_Rect); cdecl;
+external {$IFDEF __GPC__}name 'SDL_SetClipRect'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SetClipRect}
+
+{ Gets the clipping rectangle for the destination surface in a blit.
+ 'rect' must be a pointer to a valid rectangle which will be filled
+ with the correct values. }
+procedure SDL_GetClipRect(surface: PSDL_Surface; rect: PSDL_Rect); cdecl;
+external {$IFDEF __GPC__}name 'SDL_GetClipRect'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GetClipRect}
+
+{ Creates a new surface of the specified format, and then copies and maps
+ the given surface to it so the blit of the converted surface will be as
+ fast as possible. If this function fails, it returns NULL.
+
+ The 'flags' parameter is passed to SDL_CreateRGBSurface() and has those
+ semantics. You can also pass SDL_RLEACCEL in the flags parameter and
+ SDL will try to RLE accelerate colorkey and alpha blits in the resulting
+ surface.
+
+ This function is used internally by SDL_DisplayFormat(). }
+
+function SDL_ConvertSurface(src: PSDL_Surface; fmt: PSDL_PixelFormat; flags: UInt32): PSDL_Surface;
+cdecl; external {$IFDEF __GPC__}name 'SDL_ConvertSurface'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_UpperBlit'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_LowerBlit'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_FillRect'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_DisplayFormat'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_DisplayFormatAlpha'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_CreateYUVOverlay'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_LockYUVOverlay'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_LockYUVOverlay}
+
+procedure SDL_UnlockYUVOverlay(Overlay: PSDL_Overlay); cdecl;
+external {$IFDEF __GPC__}name 'SDL_UnlockYUVOverlay'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_DisplayYUVOverlay'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_DisplayYUVOverlay}
+
+// Free a video overlay
+procedure SDL_FreeYUVOverlay(Overlay: PSDL_Overlay);
+cdecl; external {$IFDEF __GPC__}name 'SDL_FreeYUVOverlay'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_GL_LoadLibrary'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GL_LoadLibrary}
+
+{ Get the address of a GL function (for extension functions) }
+function SDL_GL_GetProcAddress(procname: PChar) : Pointer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_GL_GetProcAddress'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_GL_SetAttribute'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_GL_GetAttribute'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GL_GetAttribute}
+
+{ Swap the OpenGL buffers, if double-buffering is supported. }
+
+procedure SDL_GL_SwapBuffers;
+cdecl; external {$IFDEF __GPC__}name 'SDL_GL_SwapBuffers'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_GL_UpdateRects'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GL_UpdateRects}
+procedure SDL_GL_Lock;
+cdecl; external {$IFDEF __GPC__}name 'SDL_GL_Lock'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GL_Lock;}
+procedure SDL_GL_Unlock;
+cdecl; external {$IFDEF __GPC__}name 'SDL_GL_Unlock'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_WM_GetCaption'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_WM_GetCaption}
+procedure SDL_WM_SetCaption( const title : PChar; const icon : PChar);
+cdecl; external {$IFDEF __GPC__}name 'SDL_WM_SetCaption'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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: UInt8);
+cdecl; external {$IFDEF __GPC__}name 'SDL_WM_SetIcon'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_WM_IconifyWindow'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_WM_ToggleFullScreen'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_WM_GrabInput'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_GetMouseState'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_GetRelativeMouseState'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GetRelativeMouseState}
+
+{ Set the position of the mouse cursor (generates a mouse motion event) }
+procedure SDL_WarpMouse(x, y: UInt16);
+cdecl; external {$IFDEF __GPC__}name 'SDL_WarpMouse'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_CreateCursor'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_SetCursor'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SetCursor}
+
+{ Returns the currently active cursor. }
+function SDL_GetCursor: PSDL_Cursor;
+cdecl; external {$IFDEF __GPC__}name 'SDL_GetCursor'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GetCursor}
+
+{ Deallocates a cursor created with SDL_CreateCursor(). }
+procedure SDL_FreeCursor(cursor: PSDL_Cursor);
+cdecl; external {$IFDEF __GPC__}name 'SDL_FreeCursor'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_ShowCursor'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_EnableUNICODE'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_EnableUNICODE}
+
+{ If 'delay' is set to 0, keyboard repeat is disabled. }
+function SDL_EnableKeyRepeat(delay: Integer; interval: Integer): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_EnableKeyRepeat'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_EnableKeyRepeat}
+
+{ 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 {$IFDEF __GPC__}name 'SDL_GetKeyState'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GetKeyState}
+
+{ Get the current key modifier state }
+function SDL_GetModState: TSDLMod;
+cdecl; external {$IFDEF __GPC__}name 'SDL_GetModState'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_SetModState'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SetModState}
+
+{ Get the name of an SDL virtual keysym }
+function SDL_GetKeyName(key: TSDLKey): PChar;
+cdecl; external {$IFDEF __GPC__}name 'SDL_GetKeyName'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_GetAppState'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_GetAppState}
+
+
+{ Mutex functions }
+
+{ Create a mutex, initialized unlocked }
+
+function SDL_CreateMutex: PSDL_Mutex;
+cdecl; external {$IFDEF __GPC__}name 'SDL_CreateMutex'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_CreateMutex}
+
+{ Lock the mutex (Returns 0, or -1 on error) }
+
+ function SDL_mutexP(mutex: PSDL_mutex): Integer;
+ cdecl; external {$IFDEF __GPC__}name 'SDL_mutexP'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{ $ EXTERNALSYM SDL_mutexP}
+
+function SDL_LockMutex(mutex: PSDL_mutex): Integer;
+{$EXTERNALSYM SDL_LockMutex}
+
+{ Unlock the mutex (Returns 0, or -1 on error) }
+function SDL_mutexV(mutex: PSDL_mutex): Integer;
+cdecl; external {$IFDEF __GPC__}name 'SDL_mutexV'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_mutexV}
+
+function SDL_UnlockMutex(mutex: PSDL_mutex): Integer;
+{$EXTERNALSYM SDL_UnlockMutex}
+
+{ Destroy a mutex }
+procedure SDL_DestroyMutex(mutex: PSDL_mutex);
+cdecl; external {$IFDEF __GPC__}name 'SDL_DestroyMutex'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_CreateSemaphore'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_CreateSemaphore}
+
+
+{ Destroy a semaphore }
+procedure SDL_DestroySemaphore(sem: PSDL_sem);
+cdecl; external {$IFDEF __GPC__}name 'SDL_DestroySemaphore'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_SemWait'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_SemTryWait'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_SemWaitTimeout'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_SemPost'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SemTryWait}
+
+{ Returns the current count of the semaphore }
+
+function SDL_SemValue(sem: PSDL_sem): UInt32;
+cdecl; external {$IFDEF __GPC__}name 'SDL_SemValue'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_SemValue}
+
+{ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * }
+{ Condition variable functions }
+{ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * }
+{ Create a condition variable }
+function SDL_CreateCond: PSDL_Cond;
+cdecl; external {$IFDEF __GPC__}name 'SDL_CreateCond'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_CreateCond}
+
+{ Destroy a condition variable }
+procedure SDL_DestroyCond(cond: PSDL_Cond);
+cdecl; external {$IFDEF __GPC__}name 'SDL_DestroyCond'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_CondSignal'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_CondBroadcast'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_CondWait'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_CondWaitTimeout'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_CondWaitTimeout}
+
+{ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * }
+{ Condition variable functions }
+{ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * }
+
+{ Create a thread }
+function SDL_CreateThread(fn: PInt; data: Pointer): PSDL_Thread;
+cdecl; external {$IFDEF __GPC__}name 'SDL_CreateThread'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_CreateThread}
+
+{ Get the 32-bit thread identifier for the current thread }
+function SDL_ThreadID: UInt32;
+cdecl; external {$IFDEF __GPC__}name 'SDL_ThreadID'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_GetThreadID'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_WaitThread'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_WaitThread}
+
+{ Forcefully kill a thread without worrying about its state }
+procedure SDL_KillThread(thread: PSDL_Thread);
+cdecl; external {$IFDEF __GPC__}name 'SDL_KillThread'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_KillThread}
+
+{------------------------------------------------------------------------------}
+{ Get Environment Routines }
+{------------------------------------------------------------------------------}
+{$IFDEF WIN32}
+function _putenv( const variable : Pchar ): integer;
+cdecl;
+{$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 {$IFDEF __GPC__}name 'SDL_Init'{$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 WIN32}
+{$IFNDEF __GPC__}
+function getenv( const name : Pchar ): PChar; cdecl;
+{$ENDIF}
+{$ENDIF}
+
+{* Retrieve a variable named "name" from the environment }
+//function SDL_getenv(const name: PChar): PChar; cdecl; external {$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 {$IFDEF __GPC__}name 'SDL_GetWMInfo'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_LoadObject'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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 {$IFDEF __GPC__}name 'SDL_LoadFunction'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$EXTERNALSYM SDL_LoadFunction}
+
+{* Unload a shared object from memory *}
+procedure SDL_UnloadObject( handle : Pointer );
+cdecl; external {$IFDEF __GPC__}name 'SDL_UnloadObject'{$ELSE} SDLLibName{$ENDIF __GPC__};
+{$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
+ {$IFNDEF WIN32}
+ SDL_Error(SDL_ENOMEM);
+ {$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;
+
+{$IFDEF WIN32}
+function _putenv( const variable : Pchar ): Integer;
+cdecl; external {$IFDEF __GPC__}name '_putenv'{$ELSE} 'MSVCRT.DLL'{$ENDIF __GPC__};
+{$ENDIF}
+
+
+function SDL_putenv(const variable: PChar): Integer;
+begin
+ {$IFDEF WIN32}
+ Result := _putenv(variable);
+ {$ENDIF}
+
+ {$IFDEF UNIX}
+ {$IFDEF FPC}
+ Result := _putenv(variable);
+ {$ELSE}
+ Result := libc.putenv(variable);
+ {$ENDIF}
+ {$ENDIF}
+end;
+
+{$IFDEF WIN32}
+{$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 WIN32}
+
+ {$IFDEF __GPC__}
+ Result := getenv( string( name ) );
+ {$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.
+
+
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