(*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2008 Andrey Korotaev <unC0Rr@gmail.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

 *)

{$INCLUDE "options.inc"}

unit SDLh;

interface

{$IFDEF LINUX}

  {$DEFINE UNIX}

{$ENDIF}

{$IFDEF FREEBSD}

  {$DEFINE UNIX}

{$ENDIF}

{$IFDEF UNIX}

  {$IFNDEF DARWIN}

    {$linklib c}

  {$ENDIF}

  {$linklib pthread}

{$ENDIF}

{$IFDEF FPC}

  {$PACKRECORDS C}

{$ELSE}

  {$DEFINE cdecl attribute(cdecl)}

{$ENDIF}

{$IFDEF DARWIN}

  {$IFNDEF IPHONEOS}

    {$PASCALMAINNAME SDL_main}

    {$linkframework Cocoa}

    {$linkframework SDL}

    {$linkframework SDL_net}

    {$linkframework SDL_image}

    {$linkframework SDL_ttf}

    {$linkframework SDL_mixer}

  {$ENDIF}

{$ENDIF}

(*  SDL  *)

const

{$IFDEF WIN32}

	SDLLibName = 'SDL.dll';

	SDL_TTFLibName = 'SDL_ttf.dll';

	SDL_MixerLibName = 'SDL_mixer.dll';

	SDL_ImageLibName = 'SDL_image.dll';

	SDL_NetLibName = 'SDL_net.dll';

{$ELSE}

  {$IFDEF DARWIN}

	SDLLibName = 'SDL';

	SDL_TTFLibName = 'SDL_ttf';

	SDL_MixerLibName = 'SDL_mixer';

	SDL_ImageLibName = 'SDL_image';

	SDL_NetLibName = 'SDL_net';

  {$ELSE}

	SDLLibName = 'libSDL.so';

	SDL_TTFLibName = 'libSDL_ttf.so';

	SDL_MixerLibName = 'libSDL_mixer.so';

	SDL_ImageLibName = 'libSDL_image.so';

	SDL_NetLibName = 'libSDL_net.so';

  {$ENDIF}

{$ENDIF}

/////////////////////////////////////////////////////////////////

/////////////////////  CONSTANT DEFINITIONS /////////////////////

/////////////////////////////////////////////////////////////////

	SDL_SWSURFACE     = $00000000;

	SDL_HWSURFACE     = $00000001;

	SDL_SRCALPHA      = $00010000;

	SDL_INIT_TIMER    = $00000001;

	SDL_INIT_AUDIO    = $00000010;

	SDL_INIT_VIDEO    = $00000020;

	SDL_INIT_JOYSTICK = $00000200;

{$IFDEF SDL13}

	SDL_INIT_HAPTIC   = $00001000;

{$ELSE}

	SDL_INIT_CDROM	  = $00000100;

{$ENDIF}

	SDL_INIT_NOPARACHUTE = $00100000;

	SDL_INIT_EVENTTHREAD = $01000000;

	SDL_INIT_EVERYTHING  = $0000FFFF;

	SDL_APPINPUTFOCUS    = 2;

	SDL_BUTTON_WHEELUP   = 4;

	SDL_BUTTON_WHEELDOWN = 5;

{*begin SDL_Event binding*}

	SDL_NOEVENT = 0;

	SDL_KEYDOWN = 2;

	SDL_KEYUP = 3;

{$IFDEF SDL13}

        SDL_WINDOWEVENT = 1;

        SDL_TEXTINPUT = 4;

        SDL_TEXTEDITING = 5;

	SDL_MOUSEMOTION  = 6;

        SDL_MOUSEBUTTONDOWN = 7;

	SDL_MOUSEBUTTONUP   = 8;

        SDL_MOUSEWHEEL = 9;

	SDL_JOYAXISMOTION = 10;

	SDL_JOYBALLMOTION = 11;

	SDL_JOYHATMOTION = 12;

	SDL_JOYBUTTONDOWN = 13;

	SDL_JOYBUTTONUP = 14;

	SDL_QUITEV = 15;

{$ELSE}

        SDL_ACTIVEEVENT = 1;

	SDL_MOUSEMOTION  = 4;

       	SDL_MOUSEBUTTONDOWN = 5;

	SDL_MOUSEBUTTONUP   = 6;

	SDL_JOYAXISMOTION = 7;

	SDL_JOYBALLMOTION = 8;

	SDL_JOYHATMOTION = 9;

	SDL_JOYBUTTONDOWN = 10;

	SDL_JOYBUTTONUP = 11;

	SDL_QUITEV = 12;

	SDL_VIDEORESIZE = 16; // TODO: outdated? no longer in SDL 1.3?

{$ENDIF}

{*end SDL_Event binding*}

{$IFDEF SDL13}

	SDL_ASYNCBLIT   = $08000000;

	SDL_ANYFORMAT   = $10000000;

	SDL_HWPALETTE   = $00200000;

	SDL_DOUBLEBUF   = $00400000;

	SDL_FULLSCREEN  = $00800000;

	SDL_HWACCEL     = $08000000;

	SDL_SRCCOLORKEY = $00020000;

	SDL_RLEACCEL    = $08000000;

	SDL_NOFRAME     = $02000000;

	SDL_OPENGL      = $04000000;

	SDL_RESIZABLE   = $01000000;

{$ELSE}

	SDL_ASYNCBLIT   = $00000004;

	SDL_ANYFORMAT   = $00100000;

	SDL_HWPALETTE   = $20000000;

	SDL_DOUBLEBUF   = $40000000;

	SDL_FULLSCREEN  = $80000000;

	SDL_HWACCEL     = $00000100;

	SDL_SRCCOLORKEY = $00001000;

	SDL_RLEACCEL    = $00004000;

	SDL_NOFRAME     = $00000020;

	SDL_OPENGL      = $00000002;

	SDL_RESIZABLE   = $00000010;

{$ENDIF}

{$IFDEF ENDIAN_LITTLE}

	RMask = $000000FF;

	GMask = $0000FF00;

	BMask = $00FF0000;

	AMask = $FF000000;

{$ELSE}

	RMask = $FF000000;

	GMask = $00FF0000;

	BMask = $0000FF00;

	AMask = $000000FF;

{$ENDIF}

{$IFDEF SDL13}

// SDL_WindowFlags (enum)

    SDL_WINDOW_FULLSCREEN = $00000001;         //*< fullscreen window, implies borderless */

    SDL_WINDOW_OPENGL = $00000002;             //*< window usable with OpenGL context */

    SDL_WINDOW_SHOWN = $00000004;              //*< window is visible */

    SDL_WINDOW_BORDERLESS = $00000008;         //*< no window decoration */

    SDL_WINDOW_RESIZABLE = $00000010;          //*< window can be resized */

    SDL_WINDOW_MINIMIZED = $00000020;          //*< window is minimized */

    SDL_WINDOW_MAXIMIZED = $00000040;          //*< window is maximized */

    SDL_WINDOW_INPUT_GRABBED = $00000100;      //*< window has grabbed input focus */

    SDL_WINDOW_INPUT_FOCUS = $00000200;        //*< window has input focus */

    SDL_WINDOW_MOUSE_FOCUS = $00000400;        //*< window has mouse focus */

    SDL_WINDOW_FOREIGN = $00000800;            //*< window not created by SDL */

{$ENDIF}

	{* SDL_mixer *}

	MIX_MAX_VOLUME = 128;

	MIX_INIT_FLAC = $00000001;

	MIX_INIT_MOD  = $00000002;

	MIX_INIT_MP3  = $00000004;

	MIX_INIT_OGG  = $00000008;

	{* SDL_TTF *}

	TTF_STYLE_NORMAL = 0;

	TTF_STYLE_BOLD   = 1;

	TTF_STYLE_ITALIC = 2;

	{* SDL Joystick *}

	SDL_HAT_CENTERED  = $00;

	SDL_HAT_UP        = $01;

	SDL_HAT_RIGHT     = $02;

	SDL_HAT_DOWN      = $04;

	SDL_HAT_LEFT      = $08;

	SDL_HAT_RIGHTUP   = SDL_HAT_RIGHT or SDL_HAT_UP;

	SDL_HAT_RIGHTDOWN = SDL_HAT_RIGHT or SDL_HAT_DOWN;

	SDL_HAT_LEFTUP    = SDL_HAT_LEFT or SDL_HAT_UP;

	SDL_HAT_LEFTDOWN  = SDL_HAT_LEFT or SDL_HAT_DOWN;

	{* SDL_image *}

	IMG_INIT_JPG = $00000001;

	IMG_INIT_PNG = $00000002;

	IMG_INIT_TIF = $00000004;

/////////////////////////////////////////////////////////////////

///////////////////////  TYPE DEFINITIONS ///////////////////////

/////////////////////////////////////////////////////////////////

type 

	PSDL_Rect = ^TSDL_Rect;

	TSDL_Rect = record

{$IFDEF SDL13}

		x, y, w, h: LongInt;

{$ELSE}

		x, y: SmallInt;

		w, h: Word;

{$ENDIF}

		end;

	TPoint = record

		X: LongInt;

		Y: LongInt;

		end;

	PSDL_PixelFormat = ^TSDL_PixelFormat;

	TSDL_PixelFormat = record

		palette: Pointer;

		BitsPerPixel : Byte;

		BytesPerPixel: Byte;

		Rloss : Byte;

		Gloss : Byte;

		Bloss : Byte;

		Aloss : Byte;

		Rshift: Byte;

		Gshift: Byte;

		Bshift: Byte;

		Ashift: Byte;

		RMask : Longword;

		GMask : Longword;

		BMask : Longword;

		AMask : Longword;

		colorkey: Longword;

		alpha : Byte;

		end;

	PSDL_Surface = ^TSDL_Surface;

	TSDL_Surface = record

		flags : Longword;

		format: PSDL_PixelFormat;

		w, h  : LongInt;

		pitch : Word;

		pixels: Pointer;

		offset: LongInt;

		end;

	PSDL_Color = ^TSDL_Color;

	TSDL_Color = record

		case byte of

			0: (	r: Byte;

				g: Byte;

				b: Byte;

				unused: Byte;

			   );

			1: (	value: Longword);

		end;

	PSDL_RWops = ^TSDL_RWops;

	TSeek  = function( context: PSDL_RWops; offset: LongInt; whence: LongInt ): LongInt; cdecl;

	TRead  = function( context: PSDL_RWops; Ptr: Pointer; size: LongInt; maxnum : LongInt ): LongInt;  cdecl;

	TWrite = function( context: PSDL_RWops; Ptr: Pointer; size: LongInt; num: LongInt ): LongInt; cdecl;

	TClose = function( context: PSDL_RWops ): LongInt; cdecl;

	TStdio = record

		autoclose: LongInt;

		fp: pointer;

		end;

	TMem = record

		base: PByte;

		here: PByte;

		stop: PByte;

		end;

	TUnknown = record

		data1: Pointer;

		end;

	TSDL_RWops = record

		seek: TSeek;

		read: TRead;

		write: TWrite;

		close: TClose;

		type_: Longword;

		case Byte of

			0: (stdio: TStdio);

			1: (mem: TMem);

			2: (unknown: TUnknown);

			end;

	TSDL_KeySym = record

		scancode: Byte;

		sym: Longword;

		modifier: Longword;

		unicode: Word;

		end;

{* SDL_Event type definition *}

{$IFDEF SDL13}

	PSDL_Window = pointer;	

	PSDL_Texture = pointer;

	TSDL_WindowEvent = record

		type_: byte;

		gain: byte;

		state: byte;

		windowID: LongInt;

		data1, data2: LongInt;

		end;

// implement SDL_TextEditingEvent + SDL_TextInputEvent for sdl13

{$ELSE}

	//these two are present in sdl1.3 but only for backward compatibility

	TSDL_ActiveEvent = record

		type_: byte;

		gain: byte;

		state: byte;

		end;

	TSDL_ResizeEvent = record

		type_: Byte;

		w, h: LongInt;

		end;

{$ENDIF}

	TSDL_MouseMotionEvent = record

		type_: byte;

		which: byte;

		state: byte;

{$IFDEF SDL13}

		windowID: LongInt;

		x, y, xrel, yrel : LongInt;

		pressure, pressure_max, pressure_min,

		rotation, tilt, cursor: LongInt; 

{$ELSE}

		x, y, xrel, yrel : word;

{$ENDIF}

		end;

	TSDL_KeyboardEvent = record

		type_: Byte;

{$IFDEF SDL13}

		windowID: LongInt;

{$ENDIF}

		which: Byte;

		state: Byte;

		keysym: TSDL_KeySym;

		end;

	TSDL_MouseButtonEvent = record

		_type,

		which,

		button,

		state: byte;

{$IFDEF SDL13}

		windowID: LongInt;

		x, y: LongInt;

{$ELSE}

		x, y: word;

{$ENDIF}

		end;

{$IFDEF SDL13}

	TSDL_MouseWheelEvent = record

		type_: Byte;

		windowID: LongInt;

		which: Byte;

		x, y: LongInt;

		end;

{$ENDIF}

	TSDL_JoyAxisEvent = record

		type_: Byte;

		which: Byte;

		axis: Byte;

{$IFDEF SDL13}

		value: LongInt;

{$ELSE}

		value: word;

{$ENDIF}	

		end;

	TSDL_JoyBallEvent = record

		type_: Byte;

		which: Byte;

		ball: Byte;

{$IFDEF SDL13}

		xrel, yrel: LongInt;

{$ELSE}

		xrel, yrel: word;

{$ENDIF}

		end;

	TSDL_JoyHatEvent = record

		type_: Byte;

		which: Byte;

		hat: Byte;

		value: Byte;

		end;

	TSDL_JoyButtonEvent = record

		type_: Byte;

		which: Byte;

		button: Byte;

		state: Byte;

		end;

	TSDL_QuitEvent = record

                type_: Byte;

                end;

	PSDL_Event = ^TSDL_Event;

	TSDL_Event = record

		case Byte of

			SDL_NOEVENT: (type_: byte);

{$IFDEF SDL13}

			SDL_WINDOWEVENT: (active: TSDL_WindowEvent);

			SDL_KEYDOWN,

			SDL_KEYUP: (key: TSDL_KeyboardEvent);

			SDL_TEXTEDITING,

			SDL_TEXTINPUT: (txtin: byte);

			SDL_MOUSEMOTION: (motion: TSDL_MouseMotionEvent);

			SDL_MOUSEBUTTONDOWN,

			SDL_MOUSEBUTTONUP: (button: TSDL_MouseButtonEvent);

			SDL_MOUSEWHEEL: (wheel: TSDL_MouseWheelEvent);

			SDL_JOYAXISMOTION: (jaxis: TSDL_JoyAxisEvent);

			SDL_JOYHATMOTION: (jhat: TSDL_JoyHatEvent);

			SDL_JOYBALLMOTION: (jball: TSDL_JoyBallEvent);

			SDL_JOYBUTTONDOWN,

			SDL_JOYBUTTONUP: (jbutton: TSDL_JoyButtonEvent);

			SDL_QUITEV: (quit: TSDL_QuitEvent);

{$ELSE}

			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_JOYHATMOTION: (jhat: TSDL_JoyHatEvent);

			SDL_JOYBALLMOTION: (jball: TSDL_JoyBallEvent);

			SDL_JOYBUTTONDOWN,

			SDL_JOYBUTTONUP: (jbutton: TSDL_JoyButtonEvent);

			SDL_QUITEV: (quit: TSDL_QuitEvent);

			//SDL_SYSWMEVENT,SDL_EVENT_RESERVEDA,SDL_EVENT_RESERVEDB

			//SDL_VIDEORESIZE: (resize: TSDL_ResizeEvent);

{$ENDIF}

		end;

	PByteArray = ^TByteArray;

	TByteArray = array[0..65535] of Byte;

	PLongWordArray = ^TLongWordArray;

	TLongWordArray = array[0..16383] of LongWord;

	PSDL_Thread = Pointer;