src/SDL12_compat.c
author Ryan C. Gordon <icculus@icculus.org>
Fri, 12 Apr 2013 22:57:06 -0400
changeset 27 4b3e208d2c10
parent 26 34c2ae82780a
child 28 7507f323a8a7
permissions -rw-r--r--
Implemented SDL_EventState() and SDL_WaitEvent(), other minor cleanups.
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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/* This file contains functions for backwards compatibility with SDL 1.2 */
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#include "SDL.h"
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#if !SDL_VERSION_ATLEAST(2,0,0)
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#error You need to compile against SDL 2.0 headers.
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#endif
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#include "SDL_syswm.h"
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#include <stdarg.h>
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//#include "video/SDL_sysvideo.h"
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//#include "video/SDL_pixels_c.h"
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//#include "render/SDL_yuv_sw_c.h"
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// !!! IMPLEMENT_ME SDL_ConvertSurface
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// !!! IMPLEMENT_ME SDL_GL_GetAttribute
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// !!! IMPLEMENT_ME SDL_GL_Lock
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// !!! IMPLEMENT_ME SDL_GL_SetAttribute
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// !!! IMPLEMENT_ME SDL_GL_Unlock
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// !!! IMPLEMENT_ME SDL_GL_UpdateRects
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// !!! IMPLEMENT_ME SDL_GetKeyName
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// !!! IMPLEMENT_ME SDL_GetKeyState
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// !!! IMPLEMENT_ME SDL_GetModState
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// !!! IMPLEMENT_ME SDL_GetMouseState
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// !!! IMPLEMENT_ME SDL_GetRelativeMouseState
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// !!! IMPLEMENT_ME SDL_LockSurface
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// !!! IMPLEMENT_ME SDL_LowerBlit
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// !!! IMPLEMENT_ME SDL_SetColorKey
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// !!! IMPLEMENT_ME SDL_SetModState
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// !!! IMPLEMENT_ME SDL_SoftStretch
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// !!! IMPLEMENT_ME SDL_UnlockSurface
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// !!! IMPLEMENT_ME SDL_UpperBlit
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// !!! IMPLEMENT_ME X11_KeyToUnicode
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#define SDL20_SYM(rc,fn,params,args,ret) \
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    typedef rc (*SDL20_##fn##_t) params; \
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    static SDL20_##fn##_t SDL20_##fn = NULL;
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#define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) \
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    SDL20_SYM(rc,fn,params,args,ret)
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#include "SDL20_syms.h"
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#undef SDL20_SYM_PASSTHROUGH
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#undef SDL20_SYM
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typedef void (*SDL20_SetError_t)(const char *fmt, ...);
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static SDL20_SetError_t SDL20_SetError = NULL;
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#define SDL12_INIT_TIMER       0x00000001
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#define SDL12_INIT_AUDIO       0x00000010
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#define SDL12_INIT_VIDEO       0x00000020
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#define SDL12_INIT_CDROM       0x00000100
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#define SDL12_INIT_JOYSTICK    0x00000200
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#define SDL12_INIT_NOPARACHUTE 0x00100000
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#define SDL12_INIT_EVENTTHREAD 0x01000000
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#define SDL12_INIT_EVERYTHING  0x0000FFFF
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typedef struct SDL12_Palette
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{
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    int       ncolors;
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    SDL_Color *colors;
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} SDL12_Palette;
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typedef struct SDL12_PixelFormat
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{
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    SDL12_Palette *palette;
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    Uint8 BitsPerPixel;
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    Uint8 BytesPerPixel;
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    Uint8 Rloss;
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    Uint8 Gloss;
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    Uint8 Bloss;
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    Uint8 Aloss;
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    Uint8 Rshift;
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    Uint8 Gshift;
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    Uint8 Bshift;
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    Uint8 Ashift;
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    Uint32 Rmask;
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    Uint32 Gmask;
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    Uint32 Bmask;
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    Uint32 Amask;
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    Uint32 colorkey;
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    Uint8 alpha;
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} SDL12_PixelFormat;
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typedef struct SDL12_Surface
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{
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    Uint32 flags;
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    SDL12_PixelFormat *format;
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    int w;
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    int h;
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    Uint16 pitch;
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    void *pixels;
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    int offset;
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    SDL_Surface *hwdata; /* the real SDL 1.2 has an opaque pointer to a platform-specific thing here. */
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    SDL_Rect clip_rect;
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    Uint32 unused1;
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    Uint32 locked;
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    void *blitmap;
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    unsigned int format_version;
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    int refcount;
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} SDL12_Surface;
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typedef struct
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{
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    Uint32 hw_available :1;
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    Uint32 wm_available :1;
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    Uint32 UnusedBits1  :6;
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    Uint32 UnusedBits2  :1;
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    Uint32 blit_hw      :1;
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    Uint32 blit_hw_CC   :1;
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    Uint32 blit_hw_A    :1;
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    Uint32 blit_sw      :1;
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    Uint32 blit_sw_CC   :1;
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    Uint32 blit_sw_A    :1;
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    Uint32 blit_fill    :1;
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    Uint32 UnusedBits3  :16;
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    Uint32 video_mem;
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    SDL_PixelFormat *vfmt;
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    int current_w;
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    int current_h;
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} SDL12_VideoInfo;
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#define SDL12_HWSURFACE 0x00000001
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#define SDL12_ASYNCBLIT 0x00000004
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#define SDL12_ANYFORMAT 0x10000000
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#define SDL12_HWPALETTE 0x20000000
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#define SDL12_DOUBLEBUF 0x40000000
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#define SDL12_FULLSCREEN 0x80000000
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#define SDL12_OPENGL 0x00000002
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#define SDL12_OPENGLBLIT 0x0000000A
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#define SDL12_RESIZABLE 0x00000010
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#define SDL12_NOFRAME 0x00000020
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#define SDL12_HWACCEL 0x00000100
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#define SDL12_SRCCOLORKEY 0x00001000
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#define SDL12_RLEACCELOK 0x00002000
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#define SDL12_RLEACCEL 0x00004000
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#define SDL12_SRCALPHA 0x00010000
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#define SDL12_PREALLOC 0x01000000
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typedef int (SDLCALL *SDL12_EventFilter)(const SDL12_Event *event12);
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static int EventFilter20to12(void *data, SDL_Event *event20);
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typedef enum
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{
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    SDL12_NOEVENT = 0,
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    SDL12_ACTIVEEVENT,
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    SDL12_KEYDOWN,
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    SDL12_KEYUP,
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    SDL12_MOUSEMOTION,
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    SDL12_MOUSEBUTTONDOWN,
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    SDL12_MOUSEBUTTONUP,
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    SDL12_JOYAXISMOTION,
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    SDL12_JOYBALLMOTION,
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    SDL12_JOYHATMOTION,
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    SDL12_JOYBUTTONDOWN,
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    SDL12_JOYBUTTONUP,
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    SDL12_QUIT,
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    SDL12_SYSWMEVENT,
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    SDL12_EVENT_RESERVEDA,
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    SDL12_EVENT_RESERVEDB,
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    SDL12_VIDEORESIZE,
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    SDL12_VIDEOEXPOSE,
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    SDL12_USEREVENT = 24,
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    SDL12_NUMEVENTS = 32
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} SDL12_EventType;
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typedef struct
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{
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    Uint8 type;
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    Uint8 gain;
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    Uint8 state;
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} SDL12_ActiveEvent;
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typedef struct
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{
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    Uint8 type;
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    Uint8 which;
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    Uint8 state;
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    SDL12_keysym keysym;
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} SDL12_KeyboardEvent;
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typedef struct
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{
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    Uint8 type;
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    Uint8 which;
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    Uint8 state;
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    Uint16 x, y;
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    Sint16 xrel;
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    Sint16 yrel;
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} SDL12_MouseMotionEvent;
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typedef struct
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{
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    Uint8 type;
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    Uint8 which;
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    Uint8 button;
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    Uint8 state;
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    Uint16 x, y;
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} SDL12_MouseButtonEvent;
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typedef struct
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{
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    Uint8 type;
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    Uint8 which;
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    Uint8 axis;
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    Sint16 value;
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} SDL12_JoyAxisEvent;
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typedef struct
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{
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    Uint8 type;
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    Uint8 which;
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    Uint8 ball;
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    Sint16 xrel;
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    Sint16 yrel;
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} SDL12_JoyBallEvent;
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typedef struct
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{
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    Uint8 type;
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    Uint8 which;
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    Uint8 hat;
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    Uint8 value;
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} SDL12_JoyHatEvent;
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typedef struct
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{
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    Uint8 type;
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    Uint8 which;
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    Uint8 button;
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    Uint8 state;
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} SDL12_JoyButtonEvent;
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typedef struct
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{
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    Uint8 type;
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    int w;
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    int h;
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} SDL12_ResizeEvent;
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typedef struct
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{
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    Uint8 type;
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} SDL12_ExposeEvent;
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typedef struct
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{
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    Uint8 type;
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} SDL12_QuitEvent;
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typedef struct
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{
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    Uint8 type;
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    int code;
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    void *data1;
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    void *data2;
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} SDL12_UserEvent;
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typedef struct
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{
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    Uint8 type;
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    void *msg;
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} SDL12_SysWMEvent;
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typedef union
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{
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    Uint8 type;
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    SDL12_ActiveEvent active;
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    SDL12_KeyboardEvent key;
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    SDL12_MouseMotionEvent motion;
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    SDL12_MouseButtonEvent button;
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    SDL12_JoyAxisEvent jaxis;
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    SDL12_JoyBallEvent jball;
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    SDL12_JoyHatEvent jhat;
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    SDL12_JoyButtonEvent jbutton;
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    SDL12_ResizeEvent resize;
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    SDL12_ExposeEvent expose;
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    SDL12_QuitEvent quit;
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    SDL12_UserEvent user;
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    SDL12_SysWMEvent syswm;
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} SDL12_Event;
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typedef struct
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`{
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    SDL_Rect area;
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    Sint16 hot_x;
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    Sint16 hot_y;
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    Uint8 *data;
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    Uint8 *mask;
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    Uint8 *save[2];
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    SDL_Cursor *wm_cursor;  /* the real SDL 1.2 has an opaque pointer to a platform-specific cursor here. */
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} SDL12_Cursor;
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static SDL12_VideoInfo VideoInfo;
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static SDL_Window *VideoWindow20 = NULL;
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static SDL12_Surface *WindowSurface = NULL;
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static SDL12_Surface *VideoSurface = NULL;
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static SDL12_Surface *ShadowSurface = NULL;
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static SDL12_Surface *PublicSurface = NULL;
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static SDL_GLContext *VideoContext = NULL;
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static Uint32 VideoFlags = 0;
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static SDL_Rect VideoViewport;
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static char *WindowTitle = NULL;
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static char *WindowIconTitle = NULL;
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static SDL_Surface *VideoIcon;
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static int EnabledUnicode = 0;
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static int VideoDisplayIndex = 0;
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static int CDRomInit = 0;
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static SDL12_EventFilter EventFilter12 = NULL;
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static SDL12_Cursor *CurrentCursor = NULL;
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static Uint8 EventStates[SDL12_NUMEVENTS];
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// !!! FIXME: need a mutex for the event queue.
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#define SDL12_MAXEVENTS 128
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typedef struct EventQueueType
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{
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    SDL12_Event event12;
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    struct EventQueueType *next;
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} EventQueueType;
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static EventQueueType EventQueuePool[SDL12_MAXEVENTS];
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static EventQueueType *EventQueueHead = NULL;
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static EventQueueType *EventQueueTail = NULL;
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static EventQueueType *EventQueueAvailable = NULL;
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/* Obviously we can't use SDL_LoadObject() to load SDL2.  :)  */
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#if defined(_WINDOWS)
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    #define WIN32_LEAN_AND_MEAN 1
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    #include <windows.h>
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    #define SDL20_LIBNAME "SDL2.dll"
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    static HANDLE Loaded_SDL20 = NULL;
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    #define LoadSDL20Library() ((Loaded_SDL20 = LoadLibraryA(SDL20_LIBNAME)) != NULL)
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    #define LookupSDL20Sym(sym) GetProcAddress(Loaded_SDL20, sym)
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    #define CloseSDL20Library() { { if (Loaded_SDL20) { FreeLibrary(Loaded_SDL20); Loaded_SDL20 = NULL; } }
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#elif defined(unix) || defined(__APPLE__)
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    #include <dlfcn.h>
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    #ifdef __APPLE__
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    #define SDL20_LIBNAME "libSDL2.dylib"
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    #else
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    #define SDL20_LIBNAME "libSDL2-2.0.so.0"
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    #endif
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    static void *Loaded_SDL20 = NULL;
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    #define LoadSDL20Library() ((Loaded_SDL20 = dlopen(SDL20_LIBNAME, RTLD_LOCAL)) != NULL)
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    #define LookupSDL20Sym(sym) dlsym(Loaded_SDL20, sym)
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    #define CloseSDL20Library() { if (Loaded_SDL20) { dlclose(Loaded_SDL20); Loaded_SDL20 = NULL; } }
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#else
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    #error Please define your platform.
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#endif
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static void *
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LoadSDL20Symbol(const char *fn, int *okay)
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{
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    void *retval = NULL;
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    if (*okay)  /* only bother trying if we haven't previously failed. */
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    {
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        retval = LookupSDL20Sym(fn);
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        if (retval == NULL)
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            *okay = 0;
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    }
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    return retval;
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}
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static void
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UnloadSDL20(void)
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{
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    #define SDL20_SYM(rc,fn,params,args,ret) SDL20_##fn = NULL;
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    #define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) SDL20_##fn = NULL;
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    #include "SDL20_syms.h"
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    #undef SDL20_SYM_PASSTHROUGH
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    #undef SDL20_SYM
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    SDL20_SetError = NULL;
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    CloseSDL20Library();
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}
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static int
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LoadSDL20(void)
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{
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    int okay = 1;
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    if (!Loaded_SDL20)
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    {
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        okay = LoadSDL20Library();
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        #define SDL20_SYM(rc,fn,params,args,ret) SDL20_##fn = (SDL20_##fn##_t) LoadSDL20Symbol("SDL_" #fn, &okay);
icculus@9
   410
        #define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) SDL20_SYM(rc,fn,params,args,ret)
icculus@9
   411
        #include "SDL20_syms.h"
icculus@9
   412
        #undef SDL20_SYM_PASSTHROUGH
icculus@9
   413
        #undef SDL20_SYM
icculus@11
   414
        SDL20_SetError = (SDL20_SetError_t) LoadSDL20Symbol("SDL_SetError", &okay);
icculus@9
   415
        if (!okay)
icculus@9
   416
            UnloadSDL20();
icculus@9
   417
    }
icculus@9
   418
    return okay;
icculus@9
   419
}
icculus@9
   420
icculus@9
   421
icculus@9
   422
static int
icculus@9
   423
GetVideoDisplay()
icculus@9
   424
{
icculus@9
   425
    // !!! FIXME: cache this value during SDL_Init() so it doesn't change.
icculus@9
   426
    const char *variable = SDL_getenv("SDL_VIDEO_FULLSCREEN_DISPLAY");
icculus@9
   427
    if ( !variable ) {
icculus@9
   428
        variable = SDL_getenv("SDL_VIDEO_FULLSCREEN_HEAD");
icculus@9
   429
    }
icculus@9
   430
    if ( variable ) {
icculus@9
   431
        return SDL_atoi(variable);
icculus@9
   432
    } else {
icculus@9
   433
        return 0;
icculus@9
   434
    }
icculus@9
   435
}
icculus@9
   436
icculus@11
   437
static int
icculus@11
   438
DoSDLInit(const int justsubs, Uint32 sdl12flags)
icculus@9
   439
{
icculus@9
   440
    Uint32 sdl20flags = 0;
icculus@9
   441
    int rc;
icculus@9
   442
icculus@9
   443
    if (!LoadSDL20())
icculus@9
   444
        return -1;
icculus@9
   445
icculus@19
   446
    #define SETFLAG(flag) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag
icculus@9
   447
    SETFLAG(TIMER);
icculus@9
   448
    SETFLAG(AUDIO);
icculus@9
   449
    SETFLAG(VIDEO);
icculus@9
   450
    SETFLAG(JOYSTICK);
icculus@9
   451
    SETFLAG(NOPARACHUTE);
icculus@11
   452
    #undef SETFLAG
icculus@11
   453
icculus@11
   454
    // There's no CDROM in 2.0, but we'll just pretend it succeeded.
icculus@11
   455
    if (sdl12flags & SDL12_INIT_CDROM)
icculus@16
   456
        CDRomInit = 1;
icculus@11
   457
icculus@11
   458
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   459
icculus@11
   460
    rc = justsubs ? SDL20_InitSubSystem(sdl20flags) : SDL20_Init(sdl20flags);
icculus@11
   461
    if ((rc == 0) && (sdl20flags & SDL_INIT_VIDEO))
icculus@18
   462
    {
icculus@20
   463
        int i;
icculus@20
   464
        for (i = 0; i < SDL12_MAXEVENTS-1; i++)
icculus@20
   465
            EventQueuePool[i].next = &EventQueuePool[i+1];
icculus@20
   466
        EventQueuePool[SDL12_MAXEVENTS-1].next = NULL;
icculus@20
   467
        EventQueueHead = EventQueueTail = NULL;
icculus@20
   468
        EventQueueAvailable = EventQueuePool;
icculus@27
   469
        SDL_memset(EventStates, SDL_ENABLE, sizeof (EventStates)); /* on by default */
icculus@27
   470
        EventStates[SDL12_SYSWMEVENT] = SDL_IGNORE;  /* off by default. */
icculus@18
   471
        SDL20_SetEventFilter(EventFilter20to12, NULL);
icculus@16
   472
        VideoDisplayIndex = GetVideoDisplay();
icculus@18
   473
    }
icculus@18
   474
icculus@11
   475
    return rc;
icculus@11
   476
}
icculus@11
   477
icculus@11
   478
int
icculus@11
   479
SDL_InitSubSystem(Uint32 sdl12flags)
icculus@11
   480
{
icculus@11
   481
    return DoSDLInit(1, sdl12flags);
icculus@11
   482
}
icculus@11
   483
icculus@11
   484
int
icculus@11
   485
SDL_Init(Uint32 sdl12flags)
icculus@11
   486
{
icculus@11
   487
    return DoSDLInit(0, sdl12flags);
icculus@11
   488
}
icculus@11
   489
icculus@11
   490
Uint32
icculus@11
   491
SDL_WasInit(Uint32 sdl12flags)
icculus@11
   492
{
icculus@11
   493
    // !!! FIXME: this is cut and pasted several places.
icculus@11
   494
    Uint32 sdl20flags = 0;
icculus@11
   495
    Uint32 extraflags = 0;
icculus@11
   496
icculus@19
   497
    #define SETFLAG(flag) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag
icculus@11
   498
    SETFLAG(TIMER);
icculus@11
   499
    SETFLAG(AUDIO);
icculus@11
   500
    SETFLAG(VIDEO);
icculus@11
   501
    SETFLAG(JOYSTICK);
icculus@11
   502
    SETFLAG(NOPARACHUTE);
icculus@11
   503
    #undef SETFLAG
icculus@11
   504
icculus@16
   505
    if ((sdl12flags & SDL12_INIT_CDROM) && (CDRomInit))
icculus@11
   506
        extraflags |= SDL12_INIT_CDROM;
icculus@11
   507
icculus@11
   508
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   509
icculus@11
   510
    // !!! FIXME: convert back to 1.2
icculus@11
   511
    return SDL20_WasInit(sdl20flags) | extraflags;
icculus@11
   512
}
icculus@11
   513
icculus@11
   514
void
icculus@11
   515
SDL_QuitSubSystem(Uint32 sdl12flags)
icculus@11
   516
{
icculus@11
   517
    Uint32 sdl20flags = 0;
icculus@11
   518
icculus@19
   519
    #define SETFLAG(flag) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag
icculus@11
   520
    SETFLAG(TIMER);
icculus@11
   521
    SETFLAG(AUDIO);
icculus@11
   522
    SETFLAG(VIDEO);
icculus@11
   523
    SETFLAG(JOYSTICK);
icculus@11
   524
    SETFLAG(NOPARACHUTE);
icculus@9
   525
    // There's no CDROM in 2.0, but we'll just pretend it succeeded.
icculus@9
   526
    #undef SETFLAG
icculus@9
   527
icculus@16
   528
    if (sdl12flags & SDL12_INIT_CDROM)
icculus@16
   529
        CDRomInit = 0;
icculus@16
   530
icculus@17
   531
    // !!! FIXME: reset a bunch of other global variables too.
icculus@17
   532
    if (sdl12flags & SDL12_INIT_VIDEO) {
icculus@18
   533
        EventFilter12 = NULL;
icculus@20
   534
        EventQueueAvailable = EventQueueHead = EventQueueTail = NULL;
icculus@23
   535
        CurrentCursor = NULL;
icculus@17
   536
        SDL20_FreeFormat(VideoInfo.vfmt);
icculus@17
   537
        SDL_zero(VideoInfo);
icculus@17
   538
    }
icculus@17
   539
icculus@9
   540
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   541
    SDL20_QuitSubSystem(sdl20flags);
icculus@9
   542
icculus@11
   543
    // !!! FIXME: UnloadSDL20() ?
icculus@9
   544
}
icculus@9
   545
icculus@9
   546
void
icculus@9
   547
SDL_Quit(void)
icculus@9
   548
{
icculus@17
   549
    // !!! FIXME: reset a bunch of other global variables too.
icculus@18
   550
    EventFilter12 = NULL;
icculus@20
   551
    EventQueueAvailable = EventQueueHead = EventQueueTail = NULL;
icculus@23
   552
    CurrentCursor = NULL;
icculus@17
   553
    SDL20_FreeFormat(VideoInfo.vfmt);
icculus@17
   554
    SDL_zero(VideoInfo);
icculus@16
   555
    CDRomInit = 0;
icculus@9
   556
    SDL20_Quit();
icculus@9
   557
    UnloadSDL20();
icculus@9
   558
}
icculus@9
   559
icculus@11
   560
void
icculus@11
   561
SDL_SetError(const char *fmt, ...)
icculus@11
   562
{
icculus@12
   563
    char *str = NULL;
icculus@12
   564
    va_list ap;
icculus@12
   565
    va_start(ap, fmt);
icculus@12
   566
    vasprintf(&str, fmt, ap);
icculus@12
   567
    va_end(ap);
icculus@12
   568
    if (!str)
icculus@12
   569
        SDL20_OutOfMemory();
icculus@12
   570
    else
icculus@12
   571
    {
icculus@12
   572
        SDL20_SetError("%s", str);
icculus@12
   573
        free(str);
icculus@12
   574
    }
icculus@11
   575
}
icculus@9
   576
icculus@19
   577
const char *
icculus@9
   578
SDL_GetError(void)
icculus@9
   579
{
icculus@9
   580
    if (!Loaded_SDL20)
icculus@9
   581
    {
icculus@19
   582
        static const char noload_errstr[] = "Failed to load SDL 2.0 shared library";
icculus@9
   583
        return noload_errstr;
icculus@9
   584
    }
icculus@9
   585
    return SDL20_GetError();
icculus@9
   586
}
icculus@9
   587
icculus@9
   588
icculus@9
   589
static const char *
icculus@9
   590
GetDriverName(const char *name, char *namebuf, int maxlen)
icculus@9
   591
{
icculus@9
   592
    if (name) {
icculus@9
   593
        if (namebuf) {
icculus@9
   594
            SDL20_strlcpy(namebuf, name, maxlen);
icculus@9
   595
            return namebuf;
icculus@9
   596
        } else {
icculus@9
   597
            return name;
icculus@9
   598
        }
icculus@9
   599
    }
icculus@9
   600
    return NULL;
icculus@9
   601
}
icculus@9
   602
icculus@9
   603
const char *
icculus@9
   604
SDL_AudioDriverName(char *namebuf, int maxlen)
icculus@9
   605
{
icculus@9
   606
    return GetDriverName(SDL20_GetCurrentAudioDriver(), namebuf, maxlen);
icculus@9
   607
}
icculus@9
   608
icculus@9
   609
const char *
icculus@9
   610
SDL_VideoDriverName(char *namebuf, int maxlen)
icculus@9
   611
{
icculus@9
   612
    return GetDriverName(SDL20_GetCurrentVideoDriver(), namebuf, maxlen);
icculus@9
   613
}
icculus@9
   614
icculus@18
   615
static int
icculus@18
   616
EventFilter20to12(void *data, SDL_Event *event20)
icculus@15
   617
{
icculus@18
   618
    const int maxUserEvents12 = SDL12_NUMEVENTS - SDL12_USEREVENT;
icculus@18
   619
    SDL12_Event event12;
icculus@18
   620
icculus@18
   621
    SDL_assert(data == NULL);  /* currently unused. */
icculus@18
   622
icculus@18
   623
    SDL_zero(event12);
icculus@18
   624
icculus@18
   625
    switch (event20->type)
icculus@18
   626
    {
icculus@18
   627
        case SDL_QUIT:
icculus@18
   628
            event12->type = SDL12_QUIT;
icculus@18
   629
            break;
icculus@18
   630
icculus@18
   631
        case SDL_WINDOWEVENT:
icculus@18
   632
            switch (event20->window.event)
icculus@18
   633
            {
icculus@18
   634
                case SDL_WINDOWEVENT_CLOSE:
icculus@18
   635
                    event12->type = SDL12_QUIT;
icculus@18
   636
                    break;
icculus@18
   637
icculus@18
   638
                case SDL_WINDOWEVENT_SHOWN:
icculus@18
   639
                case SDL_WINDOWEVENT_EXPOSED:
icculus@18
   640
                    event12->type = SDL12_VIDEOEXPOSE;
icculus@18
   641
                    break;
icculus@18
   642
icculus@18
   643
                case SDL_WINDOWEVENT_RESIZED:
icculus@18
   644
                case SDL_WINDOWEVENT_SIZE_CHANGED:  // !!! FIXME: what's the difference between RESIZED and SIZE_CHANGED?
icculus@18
   645
                    event12->type = SDL12_VIDEORESIZE;
icculus@18
   646
                    event12->resize.w = event20->window.data1;
icculus@18
   647
                    event12->resize.h = event20->window.data2;
icculus@18
   648
                    break;
icculus@18
   649
icculus@18
   650
                case SDL_WINDOWEVENT_MINIMIZED:
icculus@18
   651
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   652
                    event12->active.gain = 0;
icculus@18
   653
                    event12->active.state = SDL_APPACTIVE;
icculus@18
   654
                    break;
icculus@18
   655
icculus@18
   656
                case SDL_WINDOWEVENT_RESTORED:
icculus@18
   657
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   658
                    event12->active.gain = 1;
icculus@18
   659
                    event12->active.state = SDL_APPACTIVE;
icculus@18
   660
                    break;
icculus@18
   661
icculus@18
   662
                case SDL_WINDOWEVENT_ENTER:
icculus@18
   663
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   664
                    event12->active.gain = 1;
icculus@18
   665
                    event12->active.state = SDL_APPMOUSEFOCUS;
icculus@18
   666
                    break;
icculus@18
   667
icculus@18
   668
                case SDL_WINDOWEVENT_LEAVE:
icculus@18
   669
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   670
                    event12->active.gain = 0;
icculus@18
   671
                    event12->active.state = SDL_APPMOUSEFOCUS;
icculus@18
   672
                    break;
icculus@18
   673
icculus@18
   674
                case SDL_WINDOWEVENT_FOCUS_GAINED:
icculus@18
   675
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   676
                    event12->active.gain = 1;
icculus@18
   677
                    event12->active.state = SDL_APPINPUTFOCUS;
icculus@18
   678
                    break;
icculus@18
   679
icculus@18
   680
                case SDL_WINDOWEVENT_FOCUS_LOST:
icculus@18
   681
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   682
                    event12->active.gain = 0;
icculus@18
   683
                    event12->active.state = SDL_APPINPUTFOCUS;
icculus@18
   684
                    break;
icculus@18
   685
            }
icculus@18
   686
            break;
icculus@18
   687
icculus@18
   688
        // !!! FIXME: this is sort of a mess to convert.
icculus@18
   689
        //case SDL_SYSWMEVENT:
icculus@18
   690
icculus@18
   691
        // !!! FIXME: write me
icculus@18
   692
        case SDL_KEYDOWN:
icculus@18
   693
        case SDL_KEYUP:
icculus@18
   694
            return 0;
icculus@18
   695
icculus@18
   696
        // !!! FIXME: write me
icculus@18
   697
        case SDL_TEXTEDITING:
icculus@18
   698
        case SDL_TEXTINPUT:
icculus@18
   699
            return 0;
icculus@18
   700
icculus@18
   701
        case SDL_MOUSEMOTION:
icculus@18
   702
        	event12->type = SDL12_MOUSEMOTION;
icculus@18
   703
            event12->motion.which = (Uint8) event20->motion.which;
icculus@18
   704
            event12->motion.state = event20->motion.state;
icculus@18
   705
            event12->motion.x = (Uint16) event20->motion.x;
icculus@18
   706
            event12->motion.y = (Uint16) event20->motion.y;
icculus@18
   707
            event12->motion.xrel = (Sint16) event20->motion.xrel;
icculus@18
   708
            event12->motion.yrel = (Sint16) event20->motion.yrel;
icculus@18
   709
            break;
icculus@18
   710
icculus@18
   711
        case SDL_MOUSEBUTTONDOWN:
icculus@18
   712
        	event12->type = SDL12_MOUSEBUTTONDOWN;
icculus@18
   713
            event12->button.which = (Uint8) event20->button.which;
icculus@18
   714
            event12->button.button = event20->button.button;
icculus@18
   715
            event12->button.state = event20->button.state;
icculus@18
   716
            event12->button.x = (Uint16) event20->button.x;
icculus@18
   717
            event12->button.y = (Uint16) event20->button.y;
icculus@18
   718
            break;
icculus@18
   719
icculus@18
   720
        case SDL_MOUSEBUTTONUP:
icculus@18
   721
        	event12->type = SDL12_MOUSEBUTTONUP;
icculus@18
   722
            event12->button.which = (Uint8) event20->button.which;
icculus@18
   723
            event12->button.button = event20->button.button;
icculus@18
   724
            event12->button.state = event20->button.state;
icculus@18
   725
            event12->button.x = (Uint16) event20->button.x;
icculus@18
   726
            event12->button.y = (Uint16) event20->button.y;
icculus@18
   727
            break;
icculus@18
   728
icculus@18
   729
        case SDL_MOUSEWHEEL:
icculus@18
   730
            return 0;  // !!! FIXME
icculus@18
   731
        	//event12->type = SDL12_MOUSEBUTTONDOWN;
icculus@18
   732
            //check app filter, push event
icculus@18
   733
        	//event12->type = SDL12_MOUSEBUTTONUP;
icculus@18
   734
            break;
icculus@18
   735
icculus@18
   736
        case SDL_JOYAXISMOTION:
icculus@18
   737
            event12->type = SDL12_JOYAXISMOTION;
icculus@18
   738
            event12->jaxis.which = (Uint8) event20->jaxis.which;
icculus@18
   739
            event12->jaxis.axis = event20->jaxis.axis;
icculus@18
   740
            event12->jaxis.value = event20->jaxis.value;
icculus@18
   741
            break;
icculus@18
   742
icculus@18
   743
        case SDL_JOYBALLMOTION:
icculus@18
   744
            event12->type = SDL12_JOYBALLMOTION;
icculus@18
   745
            event12->jball.which = (Uint8) event20->jball.which;
icculus@18
   746
            event12->jball.ball = event20->jball.ball;
icculus@18
   747
            event12->jball.xrel = event20->jball.xrel;
icculus@18
   748
            event12->jball.yrel = event20->jball.yrel;
icculus@18
   749
            break;
icculus@18
   750
icculus@18
   751
        case SDL_JOYHATMOTION:
icculus@18
   752
            event12->type = SDL12_JOYHATMOTION;
icculus@18
   753
            event12->jhat.which = (Uint8) event20->jhat.which;
icculus@18
   754
            event12->jhat.hat = event20->jhat.hat;
icculus@18
   755
            event12->jhat.value = event20->jhat.xrel;
icculus@18
   756
            break;
icculus@18
   757
icculus@18
   758
        case SDL_JOYBUTTONDOWN:
icculus@18
   759
            event12->type = SDL12_JOYBUTTONDOWN;
icculus@18
   760
            event12->jbutton.which = (Uint8) event20->jbutton.which;
icculus@18
   761
            event12->jbutton.button = event20->jbutton.button;
icculus@18
   762
            event12->jbutton.state = event20->jbutton.state;
icculus@18
   763
            break;
icculus@18
   764
icculus@18
   765
        case SDL_JOYBUTTONUP:
icculus@18
   766
            event12->type = SDL12_JOYBUTTONUP;
icculus@18
   767
            event12->jbutton.which = (Uint8) event20->jbutton.which;
icculus@18
   768
            event12->jbutton.button = event20->jbutton.button;
icculus@18
   769
            event12->jbutton.state = event20->jbutton.state;
icculus@18
   770
            break;
icculus@18
   771
icculus@18
   772
        //case SDL_JOYDEVICEADDED:
icculus@18
   773
        //case SDL_JOYDEVICEREMOVED:
icculus@18
   774
	    //case SDL_CONTROLLERAXISMOTION:
icculus@18
   775
	    //case SDL_CONTROLLERBUTTONDOWN:
icculus@18
   776
	    //case SDL_CONTROLLERBUTTONUP:
icculus@18
   777
	    //case SDL_CONTROLLERDEVICEADDED:
icculus@18
   778
	    //case SDL_CONTROLLERDEVICEREMOVED:
icculus@18
   779
	    //case SDL_CONTROLLERDEVICEREMAPPED:
icculus@18
   780
        //case SDL_FINGERDOWN:
icculus@18
   781
        //case SDL_FINGERUP:
icculus@18
   782
        //case SDL_FINGERMOTION:
icculus@18
   783
        //case SDL_DOLLARGESTURE:
icculus@18
   784
        //case SDL_DOLLARRECORD:
icculus@18
   785
        //case SDL_MULTIGESTURE:
icculus@18
   786
        //case SDL_CLIPBOARDUPDATE:
icculus@18
   787
        //case SDL_DROPFILE:
icculus@18
   788
icculus@18
   789
        default:
icculus@18
   790
            return 0;  /* drop everything else. */
icculus@18
   791
    }
icculus@18
   792
icculus@27
   793
    if (EventStates[event12->type] != SDL_IGNORE)
icculus@27
   794
    {
icculus@27
   795
        if ((!EventFilter12) || (EventFilter12(&event12)))
icculus@27
   796
            SDL_PushEvent(event12);
icculus@27
   797
    }
icculus@18
   798
icculus@18
   799
    return 0;  /* always drop it from the 2.0 event queue. */
icculus@18
   800
}
icculus@18
   801
icculus@27
   802
Uint8
icculus@27
   803
SDL_EventState(Uint8 type, int state)
icculus@27
   804
{
icculus@27
   805
    /* the values of "state" match between 1.2 and 2.0 */
icculus@27
   806
    const Uint8 retval = EventStates[type];
icculus@27
   807
    SDL12_Event e;
icculus@27
   808
icculus@27
   809
    if (state != SDL_QUERY)
icculus@27
   810
        EventStates[type] = state;
icculus@27
   811
    if (state == SDL_IGNORE)  /* drop existing events of this type. */
icculus@27
   812
        while (SDL_PeepEvents(&e, 1, SDL_GETEVENT, (1<<type))) {}
icculus@27
   813
}
icculus@27
   814
icculus@18
   815
int
icculus@18
   816
SDL_PollEvent(SDL12_Event *event12)
icculus@18
   817
{
icculus@20
   818
    EventQueueType *next;
icculus@20
   819
icculus@18
   820
    SDL20_PumpEvents();  /* this will run our filter and build our 1.2 queue. */
icculus@18
   821
icculus@20
   822
    if (EventQueueHead == NULL)
icculus@18
   823
        return 0;  /* no events at the moment. */
icculus@18
   824
icculus@20
   825
    SDL_memcpy(event12, &EventQueueHead->event12, sizeof (SDL12_Event));
icculus@20
   826
    next = EventQueueHead->next;
icculus@20
   827
    EventQueueHead->next = EventQueueAvailable;
icculus@20
   828
    EventQueueAvailable = EventQueueHead;
icculus@20
   829
    EventQueueHead = next;
icculus@18
   830
    return 1;
icculus@18
   831
}
icculus@18
   832
icculus@18
   833
int
icculus@18
   834
SDL_PushEvent(SDL12_Event *event12)
icculus@18
   835
{
icculus@20
   836
    EventQueueType *item = EventQueueAvailable;
icculus@20
   837
    if (item == NULL)
icculus@18
   838
        return -1;  /* no space available at the moment. */
icculus@18
   839
icculus@20
   840
    EventQueueAvailable = item->next;
icculus@20
   841
    if (EventQueueTail)
icculus@20
   842
        EventQueueTail->next = item;
icculus@20
   843
    else
icculus@20
   844
        EventQueueHead = EventQueueTail = item;
icculus@20
   845
    item->next = NULL;
icculus@20
   846
icculus@20
   847
    SDL_memcpy(&item->event12, event12, sizeof (SDL12_Event));
icculus@18
   848
    return 0;
icculus@18
   849
}
icculus@18
   850
icculus@18
   851
int
icculus@18
   852
SDL_PeepEvents(SDL12_Event *events12, int numevents, SDL_eventaction action, Uint32 mask)
icculus@18
   853
{
icculus@18
   854
    if (action == SDL_ADDEVENT)
icculus@18
   855
    {
icculus@27
   856
        int i;
icculus@18
   857
        for (i = 0; i < numevents; i++)
icculus@18
   858
        {
icculus@20
   859
            if (SDL_PushEvent(&events12[i]) == -1)
icculus@18
   860
                break;  /* out of space for more events. */
icculus@18
   861
        }
icculus@18
   862
        return i;
icculus@18
   863
    }
icculus@18
   864
    else if ((action == SDL_PEEKEVENT) || (action == SDL_GETEVENT))
icculus@18
   865
    {
icculus@20
   866
        const int isGet = (action == SDL_GETEVENT);
icculus@20
   867
        EventQueueType *prev = NULL;
icculus@20
   868
        EventQueueType *item = EventQueueHead;
icculus@20
   869
        EventQueueType *next = NULL;
icculus@18
   870
        int chosen = 0;
icculus@18
   871
        while (chosen < numevents)
icculus@18
   872
        {
icculus@20
   873
            EventQueueType *nextPrev = item;
icculus@20
   874
            if (!item)
icculus@18
   875
                break;  /* no more events at the moment. */
icculus@18
   876
icculus@20
   877
            next = item->next;  /* copy, since we might overwrite item->next */
icculus@18
   878
icculus@18
   879
            if (mask & (1<<event12->type))
icculus@18
   880
            {
icculus@20
   881
                SDL_memcpy(&events12[chosen++], &item->event12, sizeof (SDL12_Event));
icculus@20
   882
                if (isGet)  /* remove from list? */
icculus@20
   883
                {
icculus@20
   884
                    if (prev != NULL)
icculus@20
   885
                        prev->next = next;
icculus@20
   886
                    if (item == EventQueueHead)
icculus@20
   887
                        EventQueueHead = next;
icculus@20
   888
                    if (item == EventQueueTail)
icculus@20
   889
                        EventQueueTail = prev;
icculus@20
   890
icculus@20
   891
                    /* put it back in the free pool. */
icculus@20
   892
                    item->next = EventQueueAvailable;
icculus@20
   893
                    EventQueueAvailable = item;
icculus@20
   894
                    nextPrev = prev;  /* previous item doesn't change. */
icculus@18
   895
                }
icculus@18
   896
            }
icculus@20
   897
icculus@20
   898
            item = next;
icculus@20
   899
            prev = nextPrev;
icculus@18
   900
        }
icculus@18
   901
        return chosen;
icculus@18
   902
    }
icculus@18
   903
icculus@18
   904
    return 0;
icculus@18
   905
}
icculus@18
   906
icculus@27
   907
int
icculus@27
   908
SDL_WaitEvent(SDL12_Event *event12)
icculus@27
   909
{
icculus@27
   910
    /* In 1.2, this only fails (-1) if you haven't SDL_Init()'d. */
icculus@27
   911
    while (!SDL_PollEvent(event12))
icculus@27
   912
        SDL_Delay(10);
icculus@27
   913
    return 1;
icculus@27
   914
}
icculus@27
   915
icculus@27
   916
icculus@18
   917
void
icculus@18
   918
SDL_SetEventFilter(SDL12_EventFilter filter12)
icculus@18
   919
{
icculus@18
   920
    /* We always have a filter installed, but will call the app's too. */
icculus@18
   921
    EventFilter12 = filter12;
icculus@18
   922
}
icculus@18
   923
icculus@18
   924
SDL12_EventFilter
icculus@18
   925
SDL_GetEventFilter(void)
icculus@18
   926
{
icculus@18
   927
    return EventFilter12;
icculus@18
   928
}
icculus@18
   929
icculus@15
   930
icculus@15
   931
SDL12_Surface *
icculus@15
   932
Surface20to12(SDL_Surface *surface20)
icculus@15
   933
{
icculus@15
   934
    SDL12_Surface *surface12 = NULL;
icculus@15
   935
    SDL12_Palette *palette12 = NULL;
icculus@15
   936
    SDL12_PixelFormat *format12 = NULL;
icculus@15
   937
    UInt32 flags = 0;
icculus@15
   938
icculus@15
   939
    if (!surface20)
icculus@15
   940
        return NULL;
icculus@15
   941
icculus@15
   942
    surface12 = (SDL12_Surface *) SDL20_malloc(sizeof (SDL12_Surface));
icculus@15
   943
    if (!surface12)
icculus@15
   944
        goto failed;
icculus@15
   945
icculus@15
   946
    palette12 = (SDL12_Palette *) SDL20_malloc(sizeof (SDL12_Palette));
icculus@15
   947
    if (!palette12)
icculus@15
   948
        goto failed;
icculus@15
   949
icculus@15
   950
    format12 = (SDL12_PixelFormat *) SDL20_malloc(sizeof (SDL12_PixelFormat));
icculus@15
   951
    if (!format12)
icculus@15
   952
        goto failed;
icculus@15
   953
icculus@15
   954
    SDL_zerop(palette12);
icculus@15
   955
    palette12->ncolors = surface20->palette->ncolors;
icculus@15
   956
    palette12->colors = surface20->palette->colors;
icculus@15
   957
icculus@15
   958
    SDL_zerop(format12);
icculus@15
   959
    format12->palette = palette12;
icculus@15
   960
    format12->BitsPerPixel = surface20->format->BitsPerPixel;
icculus@15
   961
    format12->BytesPerPixel = surface20->format->BytesPerPixel;
icculus@15
   962
    format12->Rloss = surface20->format->Rloss;
icculus@15
   963
    format12->Gloss = surface20->format->Gloss;
icculus@15
   964
    format12->Bloss = surface20->format->Bloss;
icculus@15
   965
    format12->Aloss = surface20->format->Aloss;
icculus@15
   966
    format12->Rshift = surface20->format->Rshift;
icculus@15
   967
    format12->Gshift = surface20->format->Gshift;
icculus@15
   968
    format12->Bshift = surface20->format->Bshift;
icculus@15
   969
    format12->Ashift = surface20->format->Ashift;
icculus@15
   970
    format12->Rmask = surface20->format->Rmask;
icculus@15
   971
    format12->Gmask = surface20->format->Gmask;
icculus@15
   972
    format12->Bmask = surface20->format->Bmask;
icculus@15
   973
    format12->Amask = surface20->format->Amask;
icculus@15
   974
    /* !!! FIXME: format12->colorkey; */
icculus@15
   975
    /* !!! FIXME: format12->alpha; */
icculus@15
   976
icculus@15
   977
    SDL_zerop(surface12);
icculus@15
   978
    flags = surface20->flags;
icculus@15
   979
    #define MAPSURFACEFLAGS(fl) { if (surface20->flags & SDL_##fl) { surface12->flags |= SDL12_##fl; flags &= ~SDL_##fl; } }
icculus@15
   980
    MAPSURFACEFLAGS(PREALLOC);
icculus@15
   981
    MAPSURFACEFLAGS(RLEACCEL);
icculus@15
   982
    MAPSURFACEFLAGS(DONTFREE);
icculus@15
   983
    #undef MAPSURFACEFLAGS
icculus@17
   984
    assert(flags == 0);  /* non-zero if there's a flag we didn't map. */
icculus@15
   985
icculus@15
   986
    surface12->format = format12;
icculus@15
   987
    surface12->w = surface20->w;
icculus@15
   988
    surface12->h = surface20->h;
icculus@15
   989
    surface12->pitch = (Uint16) surface20->pitch;  /* !!! FIXME: make sure this fits in a Uint16 */
icculus@15
   990
    surface12->pixels = surface20->pixels;
icculus@15
   991
    surface12->offset = 0;
icculus@15
   992
    surface12->hwdata = surface20;
icculus@15
   993
    SDL20_memcpy(&surface12->clip_rect, &surface20->clip_rect, sizeof (SDL_Rect));
icculus@15
   994
    surface12->refcount = surface20->refcount;
icculus@15
   995
icculus@15
   996
    return surface12;
icculus@15
   997
icculus@15
   998
failed:
icculus@15
   999
    SDL20_free(surface12);
icculus@15
  1000
    SDL20_free(palette12);
icculus@15
  1001
    SDL20_free(format12);
icculus@15
  1002
    return NULL;
icculus@15
  1003
}
icculus@15
  1004
icculus@15
  1005
SDL12_Surface *
icculus@15
  1006
SDL_CreateRGBSurface(Uint32 sdl12flags, int width, int height, int depth, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
icculus@15
  1007
{
icculus@15
  1008
    SDL_Surface *surface20 = SDL20_CreateRGBSurface(0, width, height, depth, Rmask, Gmask, Bmask, Amask);
icculus@15
  1009
    SDL12_Surface *surface12 = Surface20to12(surface20);
icculus@15
  1010
    if (!surface12) {
icculus@15
  1011
        SDL20_FreeSurface(surface20);
icculus@15
  1012
        return NULL;
icculus@15
  1013
    }
icculus@15
  1014
icculus@17
  1015
    assert(surface12->flags == 0);  // shouldn't have prealloc, rleaccel, or dontfree.
icculus@15
  1016
    return surface12;
icculus@15
  1017
}
icculus@15
  1018
icculus@15
  1019
SDL12_Surface *
icculus@15
  1020
SDL_CreateRGBSurfaceFrom(void *pixels, int width, int height, int depth, int pitch, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
icculus@15
  1021
{
icculus@15
  1022
    SDL_Surface *surface20 = SDL20_CreateRGBSurfaceFrom(pixels, width, height, depth, Rmask, Gmask, Bmask, Amask);
icculus@15
  1023
    SDL12_Surface *surface12 = Surface20to12(surface20);
icculus@15
  1024
    if (!surface12) {
icculus@15
  1025
        SDL20_FreeSurface(surface20);
icculus@15
  1026
        return NULL;
icculus@15
  1027
    }
icculus@15
  1028
icculus@17
  1029
    assert(surface12->flags == SDL12_PREALLOC);  // should _only_ have prealloc.
icculus@15
  1030
    return surface12;
icculus@15
  1031
}
icculus@15
  1032
icculus@15
  1033
void SDL_FreeSurface(SDL12_Surface *surface12)
icculus@15
  1034
{
icculus@15
  1035
    if (surface12) {
icculus@24
  1036
        SDL20_FreeSurface(surface12->hwdata);
icculus@15
  1037
        if (surface12->format) {
icculus@15
  1038
            SDL20_free(surface12->format->palette);
icculus@15
  1039
            SDL20_free(surface12->format);
icculus@15
  1040
        }
icculus@15
  1041
        SDL20_free(surface12);
icculus@15
  1042
    }
icculus@15
  1043
}
icculus@15
  1044
icculus@24
  1045
void
icculus@24
  1046
SDL_GetClipRect(SDL12_Surface *surface12, SDL_Rect *rect)
icculus@24
  1047
{
icculus@24
  1048
    if (surface12 && rect)
icculus@24
  1049
	    SDL_memcpy(rect, &surface12->clip_rect, sizeof (SDL_Rect));
icculus@24
  1050
}
icculus@24
  1051
icculus@24
  1052
SDL_bool
icculus@24
  1053
SDL_SetClipRect(SDL12_Surface *surface12, const SDL_Rect *rect)
icculus@24
  1054
{
icculus@24
  1055
    SDL_bool retval = SDL_FALSE;
icculus@24
  1056
    if (surface12)
icculus@24
  1057
    {
icculus@24
  1058
        retval = SDL20_SetClipRect(surface12->hwdata, rect);
icculus@24
  1059
        SDL20_GetClipRect(surface12->hwdata, &surface12->clip_rect);
icculus@24
  1060
    }
icculus@24
  1061
    return retval;
icculus@24
  1062
}
icculus@24
  1063
icculus@25
  1064
int
icculus@25
  1065
SDL_FillRect(SDL12_Surface *dst, SDL_Rect *dstrect, Uint32 color)
icculus@25
  1066
{
icculus@25
  1067
    const SDL_Rect orig_dstrect = *dstrect;
icculus@25
  1068
    const int retval = SDL20_FillRect(dst->hwdata, orig_dstrect, color);
icculus@25
  1069
    if (retval != -1)
icculus@25
  1070
    {
icculus@25
  1071
        if (dstrect)  /* 1.2 stores the clip intersection in dstrect */
icculus@25
  1072
            SDL20_IntersectRect(orig_dstrect, &dst->clip_rect, dstrect);
icculus@25
  1073
    }
icculus@25
  1074
    return retval;
icculus@25
  1075
}
icculus@25
  1076
icculus@25
  1077
icculus@17
  1078
static SDL_PixelFormat *
icculus@17
  1079
PixelFormat12to20(SDL_PixelFormat *format20, SDL_Palette *palette20, SDL12_PixelFormat *format12)
icculus@17
  1080
{
icculus@17
  1081
    palette20->ncolors = format12->palette->ncolors;
icculus@17
  1082
    palette20->colors = format12->palette->colors;
icculus@17
  1083
    palette20->version = 1;
icculus@17
  1084
    palette20->refcount = 1;
icculus@17
  1085
    format20->format = SDL_MasksToPixelFormatEnum(format12->BitsPerPixel, format12->Rmask, format12->Gmask, format12->Bmask, format12->Amask);
icculus@17
  1086
    format20->palette = palette20;
icculus@17
  1087
    format20->BitsPerPixel = format12->BitsPerPixel;
icculus@17
  1088
    format20->BytesPerPixel = format12->BytesPerPixel;
icculus@17
  1089
    format20->Rmask = format12->Rmask;
icculus@17
  1090
    format20->Gmask = format12->Gmask;
icculus@17
  1091
    format20->Bmask = format12->Bmask;
icculus@17
  1092
    format20->Amask = format12->Amask;
icculus@17
  1093
    format20->Rloss = format12->Rloss;
icculus@17
  1094
    format20->Gloss = format12->Gloss;
icculus@17
  1095
    format20->Bloss = format12->Bloss;
icculus@17
  1096
    format20->Aloss = format12->Aloss;
icculus@17
  1097
    format20->Rshift = format12->Rshift;
icculus@17
  1098
    format20->Gshift = format12->Gshift;
icculus@17
  1099
    format20->Bshift = format12->Bshift;
icculus@17
  1100
    format20->Ashift = format12->Ashift;
icculus@17
  1101
    format20->refcount = 1;
icculus@17
  1102
    format20->next = NULL;
icculus@17
  1103
    return format20;
icculus@17
  1104
}
icculus@17
  1105
icculus@17
  1106
Uint32
icculus@17
  1107
SDL_MapRGB(const SDL12_PixelFormat *format12, Uint8 r, Uint8 g, Uint8 b)
icculus@17
  1108
{
icculus@17
  1109
    /* This is probably way slower than apps expect. */
icculus@17
  1110
    SDL_PixelFormat format20;
icculus@17
  1111
    SDL_Palette palette20;
icculus@17
  1112
    return SDL20_MapRGB(PixelFormat12to20(&format20, &palette20, format12), r, g, b);
icculus@17
  1113
}
icculus@17
  1114
icculus@17
  1115
Uint32
icculus@17
  1116
SDL_MapRGBA(const SDL12_PixelFormat *format12, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
icculus@17
  1117
{
icculus@17
  1118
    /* This is probably way slower than apps expect. */
icculus@17
  1119
    SDL_PixelFormat format20;
icculus@17
  1120
    SDL_Palette palette20;
icculus@17
  1121
    return SDL20_MapRGBA(PixelFormat12to20(&format20, &palette20, format12), r, g, b, a);
icculus@17
  1122
}
icculus@17
  1123
icculus@17
  1124
void
icculus@17
  1125
SDL_GetRGB(Uint32 pixel, const SDL12_PixelFormat *format12, Uint8 *r, Uint8 *g, Uint8 *b)
icculus@17
  1126
{
icculus@17
  1127
    /* This is probably way slower than apps expect. */
icculus@17
  1128
    SDL_PixelFormat format20;
icculus@17
  1129
    SDL_Palette palette20;
icculus@17
  1130
    return SDL20_GetRGB(pixel, PixelFormat12to20(&format20, &palette20, format12), r, g, b);
icculus@17
  1131
}
icculus@17
  1132
icculus@17
  1133
void
icculus@17
  1134
SDL_GetRGBA(Uint32 pixel, const SDL12_PixelFormat *format12, Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *a)
icculus@17
  1135
{
icculus@17
  1136
    /* This is probably way slower than apps expect. */
icculus@17
  1137
    SDL_PixelFormat format20;
icculus@17
  1138
    SDL_Palette palette20;
icculus@17
  1139
    return SDL20_GetRGB(pixel, PixelFormat12to20(&format20, &palette20, format12), r, g, b, a);
icculus@17
  1140
}
icculus@15
  1141
icculus@9
  1142
const SDL12_VideoInfo *
icculus@9
  1143
SDL_GetVideoInfo(void)
icculus@9
  1144
{
icculus@9
  1145
    SDL_DisplayMode mode;
icculus@9
  1146
icculus@17
  1147
    if (!VideoInfo.vfmt && SDL20_GetDesktopDisplayMode(VideoDisplayIndex, &mode) == 0) {
icculus@17
  1148
        VideoInfo.vfmt = SDL20_AllocFormat(mode.format);
icculus@17
  1149
        VideoInfo.current_w = mode.w;
icculus@17
  1150
        VideoInfo.current_h = mode.h;
icculus@9
  1151
        // !!! FIXME
icculus@17
  1152
        //VideoInfo.wm_available = 1;
icculus@17
  1153
        //VideoInfo.video_mem = 1024 * 256;
icculus@9
  1154
    }
icculus@17
  1155
    return &VideoInfo;
icculus@9
  1156
}
icculus@9
  1157
icculus@9
  1158
int
icculus@9
  1159
SDL_VideoModeOK(int width, int height, int bpp, Uint32 sdl12flags)
icculus@9
  1160
{
icculus@9
  1161
    int i, nummodes, actual_bpp = 0;
icculus@9
  1162
icculus@9
  1163
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@9
  1164
        return 0;
icculus@9
  1165
    }
icculus@9
  1166
icculus@9
  1167
    if (!(sdl12flags & SDL12_FULLSCREEN)) {
icculus@9
  1168
        SDL_DisplayMode mode;
icculus@16
  1169
        SDL20_GetDesktopDisplayMode(VideoDisplayIndex, &mode);
icculus@9
  1170
        return SDL_BITSPERPIXEL(mode.format);
icculus@9
  1171
    }
icculus@9
  1172
icculus@16
  1173
    nummodes = SDL20_GetNumDisplayModes(VideoDisplayIndex);
icculus@9
  1174
    for (i = 0; i < nummodes; ++i) {
icculus@9
  1175
        SDL_DisplayMode mode;
icculus@16
  1176
        SDL20_GetDisplayMode(VideoDisplayIndex, i, &mode);
icculus@9
  1177
        if (!mode.w || !mode.h || (width == mode.w && height == mode.h)) {
icculus@9
  1178
            if (!mode.format) {
icculus@9
  1179
                return bpp;
icculus@9
  1180
            }
icculus@9
  1181
            if (SDL_BITSPERPIXEL(mode.format) >= (Uint32) bpp) {
icculus@9
  1182
                actual_bpp = SDL_BITSPERPIXEL(mode.format);
icculus@9
  1183
            }
icculus@9
  1184
        }
icculus@9
  1185
    }
icculus@9
  1186
    return actual_bpp;
icculus@9
  1187
}
icculus@9
  1188
icculus@9
  1189
SDL_Rect **
icculus@17
  1190
SDL_ListModes(const SDL12_PixelFormat *format, Uint32 flags)
icculus@9
  1191
{
icculus@9
  1192
    int i, nmodes;
icculus@9
  1193
    SDL_Rect **modes;
icculus@9
  1194
icculus@9
  1195
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@9
  1196
        return NULL;
icculus@9
  1197
    }
icculus@9
  1198
icculus@9
  1199
    if (!(flags & SDL12_FULLSCREEN)) {
icculus@9
  1200
        return (SDL_Rect **) (-1);
icculus@9
  1201
    }
icculus@9
  1202
icculus@9
  1203
    if (!format) {
icculus@17
  1204
        format = VideoInfo.vfmt;
icculus@9
  1205
    }
icculus@9
  1206
icculus@17
  1207
    /* !!! FIXME: Memory leak */
icculus@9
  1208
    nmodes = 0;
icculus@9
  1209
    modes = NULL;
icculus@16
  1210
    for (i = 0; i < SDL20_GetNumDisplayModes(VideoDisplayIndex); ++i) {
icculus@9
  1211
        SDL_DisplayMode mode;
icculus@9
  1212
        int bpp;
icculus@9
  1213
icculus@16
  1214
        SDL20_GetDisplayMode(VideoDisplayIndex, i, &mode);
icculus@9
  1215
        if (!mode.w || !mode.h) {
icculus@9
  1216
            return (SDL_Rect **) (-1);
icculus@9
  1217
        }
icculus@9
  1218
        
icculus@9
  1219
        /* Copied from src/video/SDL_pixels.c:SDL_PixelFormatEnumToMasks */
icculus@9
  1220
        if (SDL_BYTESPERPIXEL(mode.format) <= 2) {
icculus@9
  1221
            bpp = SDL_BITSPERPIXEL(mode.format);
icculus@9
  1222
        } else {
icculus@9
  1223
            bpp = SDL_BYTESPERPIXEL(mode.format) * 8;
icculus@9
  1224
        }
icculus@9
  1225
icculus@9
  1226
        if (bpp != format->BitsPerPixel) {
icculus@9
  1227
            continue;
icculus@9
  1228
        }
icculus@9
  1229
        if (nmodes > 0 && modes[nmodes - 1]->w == mode.w
icculus@9
  1230
            && modes[nmodes - 1]->h == mode.h) {
icculus@9
  1231
            continue;
icculus@9
  1232
        }
icculus@9
  1233
icculus@17
  1234
        modes = SDL20_realloc(modes, (nmodes + 2) * sizeof(*modes));
icculus@9
  1235
        if (!modes) {
icculus@9
  1236
            return NULL;
icculus@9
  1237
        }
icculus@17
  1238
        modes[nmodes] = (SDL_Rect *) SDL20_malloc(sizeof(SDL_Rect));
icculus@9
  1239
        if (!modes[nmodes]) {
icculus@9
  1240
            return NULL;
icculus@9
  1241
        }
icculus@9
  1242
        modes[nmodes]->x = 0;
icculus@9
  1243
        modes[nmodes]->y = 0;
icculus@9
  1244
        modes[nmodes]->w = mode.w;
icculus@9
  1245
        modes[nmodes]->h = mode.h;
icculus@9
  1246
        ++nmodes;
icculus@9
  1247
    }
icculus@9
  1248
    if (modes) {
icculus@9
  1249
        modes[nmodes] = NULL;
icculus@9
  1250
    }
icculus@9
  1251
    return modes;
icculus@9
  1252
}
icculus@9
  1253
icculus@23
  1254
icculus@23
  1255
SDL12_Cursor *
icculus@23
  1256
SDL_CreateCursor(Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
icculus@23
  1257
{
icculus@23
  1258
    const size_t datasize = h * (w / 8);
icculus@23
  1259
    SDL_Cursor *cursor20 = NULL;
icculus@23
  1260
    SDL12_Cursor *retval = NULL;
icculus@23
  1261
icculus@23
  1262
    retval = (SDL12_Cursor *) SDL20_malloc(sizeof (SDL12_Cursor));
icculus@23
  1263
    if (!retval)
icculus@23
  1264
        goto outofmem;
icculus@23
  1265
icculus@23
  1266
    SDL_zerop(retval);
icculus@23
  1267
icculus@23
  1268
    retval->data = (Uint8 *) SDL20_malloc(datasize);
icculus@23
  1269
    if (!retval->data);
icculus@23
  1270
        goto outofmem;
icculus@23
  1271
icculus@23
  1272
    retval->mask = (Uint8 *) SDL20_malloc(datasize);
icculus@23
  1273
    if (!retval->mask);
icculus@23
  1274
        goto outofmem;
icculus@23
  1275
icculus@23
  1276
    cursor20 = SDL20_CreateCursor(data, mask, w, h, hot_x, hot_y);
icculus@23
  1277
    if (!cursor20)
icculus@23
  1278
        goto failed;
icculus@23
  1279
icculus@23
  1280
    retval->area.w = w;
icculus@23
  1281
    retval->area.h = h;
icculus@23
  1282
    retval->hot_x = hot_x;
icculus@23
  1283
    retval->hot_y = hot_y;
icculus@23
  1284
    retval->wm_cursor = cursor20;
icculus@23
  1285
    /* we always leave retval->save as null pointers. */
icculus@23
  1286
icculus@23
  1287
    SDL20_memcpy(retval->data, data, datasize);
icculus@23
  1288
    SDL20_memcpy(retval->mask, mask, datasize);
icculus@23
  1289
icculus@23
  1290
    return retval;
icculus@23
  1291
icculus@23
  1292
outofmem:
icculus@23
  1293
    SDL_OutOfMemory();
icculus@23
  1294
icculus@23
  1295
failed:
icculus@23
  1296
    SDL_FreeCursor(retval);
icculus@23
  1297
    return NULL;
icculus@23
  1298
}
icculus@23
  1299
icculus@23
  1300
void
icculus@23
  1301
SDL_SetCursor(SDL12_Cursor *cursor)
icculus@23
  1302
{
icculus@23
  1303
    CurrentCursor = cursor;
icculus@23
  1304
    SDL20_SetCursor(cursor ? cursor->wm_cursor : NULL);
icculus@23
  1305
}
icculus@23
  1306
icculus@23
  1307
SDL12_Cursor *
icculus@23
  1308
SDL_GetCursor(void)
icculus@23
  1309
{
icculus@23
  1310
    return CurrentCursor;
icculus@23
  1311
}
icculus@23
  1312
icculus@23
  1313
void
icculus@23
  1314
SDL_FreeCursor(SDL12_Cursor *cursor)
icculus@23
  1315
{
icculus@23
  1316
    if (retval)
icculus@23
  1317
    {
icculus@23
  1318
        if (retval->wm_cursor)
icculus@23
  1319
            SDL20_FreeCursor(cursor);
icculus@23
  1320
        SDL20_free(retval->data);
icculus@23
  1321
        SDL20_free(retval->mask);
icculus@23
  1322
        SDL20_free(retval);
icculus@23
  1323
    }
icculus@23
  1324
}
icculus@23
  1325
icculus@23
  1326
icculus@9
  1327
static void
icculus@9
  1328
GetEnvironmentWindowPosition(int w, int h, int *x, int *y)
icculus@9
  1329
{
icculus@16
  1330
    int display = VideoDisplayIndex;
icculus@9
  1331
    const char *window = SDL_getenv("SDL_VIDEO_WINDOW_POS");
icculus@9
  1332
    const char *center = SDL_getenv("SDL_VIDEO_CENTERED");
icculus@9
  1333
    if (window) {
icculus@9
  1334
        if (SDL_sscanf(window, "%d,%d", x, y) == 2) {
icculus@9
  1335
            return;
icculus@9
  1336
        }
icculus@9
  1337
        if (SDL_strcmp(window, "center") == 0) {
icculus@9
  1338
            center = window;
icculus@9
  1339
        }
icculus@9
  1340
    }
icculus@9
  1341
    if (center) {
icculus@9
  1342
        *x = SDL_WINDOWPOS_CENTERED_DISPLAY(display);
icculus@9
  1343
        *y = SDL_WINDOWPOS_CENTERED_DISPLAY(display);
icculus@9
  1344
    }
icculus@9
  1345
}
icculus@9
  1346
icculus@9
  1347
static void
icculus@9
  1348
ClearVideoSurface()
icculus@9
  1349
{
icculus@16
  1350
    if (ShadowSurface) {
icculus@17
  1351
        SDL20_FillRect(ShadowSurface, NULL,
icculus@17
  1352
            SDL20_MapRGB(ShadowSurface->format, 0, 0, 0));
icculus@9
  1353
    }
icculus@17
  1354
    SDL20_FillRect(WindowSurface, NULL, 0);
icculus@19
  1355
    SDL20_UpdateWindowSurface(VideoWindow20);
icculus@9
  1356
}
icculus@9
  1357
icculus@9
  1358
static void
icculus@19
  1359
SetupScreenSaver(int flags12)
icculus@9
  1360
{
icculus@9
  1361
    const char *env;
icculus@9
  1362
    SDL_bool allow_screensaver;
icculus@9
  1363
icculus@9
  1364
    /* Allow environment override of screensaver disable */
icculus@9
  1365
    env = SDL_getenv("SDL_VIDEO_ALLOW_SCREENSAVER");
icculus@9
  1366
    if (env) {
icculus@9
  1367
        allow_screensaver = SDL_atoi(env) ? SDL_TRUE : SDL_FALSE;
icculus@19
  1368
    } else if (flags12 & SDL12_FULLSCREEN) {
icculus@9
  1369
        allow_screensaver = SDL_FALSE;
icculus@9
  1370
    } else {
icculus@9
  1371
        allow_screensaver = SDL_TRUE;
icculus@9
  1372
    }
icculus@9
  1373
    if (allow_screensaver) {
icculus@17
  1374
        SDL20_EnableScreenSaver();
icculus@9
  1375
    } else {
icculus@17
  1376
        SDL20_DisableScreenSaver();
icculus@9
  1377
    }
icculus@9
  1378
}
icculus@9
  1379
icculus@9
  1380
static int
icculus@19
  1381
ResizeVideoMode(int width, int height, int bpp, Uint32 flags12)
icculus@9
  1382
{
icculus@9
  1383
    int w, h;
icculus@9
  1384
icculus@9
  1385
    /* We can't resize something we don't have... */
icculus@16
  1386
    if (!VideoSurface) {
icculus@9
  1387
        return -1;
icculus@9
  1388
    }
icculus@9
  1389
icculus@9
  1390
    /* We probably have to recreate the window in fullscreen mode */
icculus@19
  1391
    if (flags12 & SDL12_FULLSCREEN) {
icculus@9
  1392
        return -1;
icculus@9
  1393
    }
icculus@9
  1394
icculus@9
  1395
    /* I don't think there's any change we can gracefully make in flags */
icculus@19
  1396
    if (flags12 != VideoFlags) {
icculus@9
  1397
        return -1;
icculus@9
  1398
    }
icculus@16
  1399
    if (bpp != VideoSurface->format->BitsPerPixel) {
icculus@9
  1400
        return -1;
icculus@9
  1401
    }
icculus@9
  1402
icculus@9
  1403
    /* Resize the window */
icculus@19
  1404
    SDL20_GetWindowSize(VideoWindow20, &w, &h);
icculus@9
  1405
    if (w != width || h != height) {
icculus@19
  1406
        SDL20_SetWindowSize(VideoWindow20, width, height);
icculus@9
  1407
    }
icculus@9
  1408
icculus@9
  1409
    /* If we're in OpenGL mode, just resize the stub surface and we're done! */
icculus@19
  1410
    if (flags12 & SDL12_OPENGL) {
icculus@16
  1411
        VideoSurface->w = width;
icculus@16
  1412
        VideoSurface->h = height;
icculus@9
  1413
        return 0;
icculus@9
  1414
    }
icculus@9
  1415
icculus@19
  1416
    WindowSurface = SDL20_GetWindowSurface(VideoWindow20);
icculus@16
  1417
    if (!WindowSurface) {
icculus@9
  1418
        return -1;
icculus@9
  1419
    }
icculus@16
  1420
    if (VideoSurface->format != WindowSurface->format) {
icculus@9
  1421
        return -1;
icculus@9
  1422
    }
icculus@16
  1423
    VideoSurface->w = width;
icculus@16
  1424
    VideoSurface->h = height;
icculus@16
  1425
    VideoSurface->pixels = WindowSurface->pixels;
icculus@16
  1426
    VideoSurface->pitch = WindowSurface->pitch;
icculus@19
  1427
    SDL20_SetClipRect(VideoSurface, NULL);
icculus@9
  1428
icculus@16
  1429
    if (ShadowSurface) {
icculus@16
  1430
        ShadowSurface->w = width;
icculus@16
  1431
        ShadowSurface->h = height;
icculus@19
  1432
        ShadowSurface->pitch = SDL20_CalculatePitch(ShadowSurface);
icculus@16
  1433
        ShadowSurface->pixels =
icculus@19
  1434
            SDL20_realloc(ShadowSurface->pixels,
icculus@16
  1435
                        ShadowSurface->h * ShadowSurface->pitch);
icculus@19
  1436
        SDL20_SetClipRect(ShadowSurface, NULL);
icculus@19
  1437
        SDL20_InvalidateMap(ShadowSurface->map);
icculus@9
  1438
    } else {
icculus@16
  1439
        PublicSurface = VideoSurface;
icculus@9
  1440
    }
icculus@9
  1441
icculus@9
  1442
    ClearVideoSurface();
icculus@9
  1443
icculus@9
  1444
    return 0;
icculus@9
  1445
}
icculus@9
  1446
icculus@9
  1447
SDL_Surface *
icculus@19
  1448
SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags12)
icculus@9
  1449
{
icculus@9
  1450
    SDL_DisplayMode desktop_mode;
icculus@16
  1451
    int display = VideoDisplayIndex;
icculus@9
  1452
    int window_x = SDL_WINDOWPOS_UNDEFINED_DISPLAY(display);
icculus@9
  1453
    int window_y = SDL_WINDOWPOS_UNDEFINED_DISPLAY(display);
icculus@9
  1454
    int window_w;
icculus@9
  1455
    int window_h;
icculus@19
  1456
    Uint32 window_flags20;
icculus@19
  1457
    Uint32 surface_flags12;
icculus@19
  1458
icculus@19
  1459
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@19
  1460
        if (SDL_Init(SDL12_INIT_VIDEO | SDL12_INIT_NOPARACHUTE) < 0) {
icculus@9
  1461
            return NULL;
icculus@9
  1462
        }
icculus@9
  1463
    }
icculus@9
  1464
icculus@19
  1465
    SDL20_GetDesktopDisplayMode(display, &desktop_mode);
icculus@9
  1466
icculus@9
  1467
    if (width == 0) {
icculus@9
  1468
        width = desktop_mode.w;
icculus@9
  1469
    }
icculus@9
  1470
    if (height == 0) {
icculus@9
  1471
        height = desktop_mode.h;
icculus@9
  1472
    }
icculus@9
  1473
    if (bpp == 0) {
icculus@9
  1474
        bpp = SDL_BITSPERPIXEL(desktop_mode.format);
icculus@9
  1475
    }
icculus@9
  1476
icculus@9
  1477
    /* See if we can simply resize the existing window and surface */
icculus@19
  1478
    if (ResizeVideoMode(width, height, bpp, flags12) == 0) {
icculus@16
  1479
        return PublicSurface;
icculus@9
  1480
    }
icculus@9
  1481
icculus@9
  1482
    /* Destroy existing window */
icculus@16
  1483
    PublicSurface = NULL;
icculus@16
  1484
    if (ShadowSurface) {
icculus@16
  1485
        ShadowSurface->flags &= ~SDL_DONTFREE;
icculus@19
  1486
        SDL20_FreeSurface(ShadowSurface);
icculus@16
  1487
        ShadowSurface = NULL;
icculus@9
  1488
    }
icculus@16
  1489
    if (VideoSurface) {
icculus@16
  1490
        VideoSurface->flags &= ~SDL_DONTFREE;
icculus@19
  1491
        SDL20_FreeSurface(VideoSurface);
icculus@16
  1492
        VideoSurface = NULL;
icculus@9
  1493
    }
icculus@16
  1494
    if (VideoContext) {
icculus@9
  1495
        /* SDL_GL_MakeCurrent(0, NULL); *//* Doesn't do anything */
icculus@19
  1496
        SDL20_GL_DeleteContext(VideoContext);
icculus@16
  1497
        VideoContext = NULL;
icculus@9
  1498
    }
icculus@19
  1499
    if (VideoWindow20) {
icculus@19
  1500
        SDL20_GetWindowPosition(VideoWindow20, &window_x, &window_y);
icculus@19
  1501
        SDL20_DestroyWindow(VideoWindow20);
icculus@9
  1502
    }
icculus@9
  1503
icculus@19
  1504
    /* Create a new window */
icculus@19
  1505
    window_flags20 = SDL_WINDOW_SHOWN;
icculus@19
  1506
    if (flags12 & SDL12_FULLSCREEN) {
icculus@19
  1507
        window_flags20 |= SDL_WINDOW_FULLSCREEN;
icculus@9
  1508
    }
icculus@19
  1509
    if (flags12 & SDL12_OPENGL) {
icculus@19
  1510
        window_flags20 |= SDL_WINDOW_OPENGL;
icculus@9
  1511
    }
icculus@19
  1512
    if (flags12 & SDL12_RESIZABLE) {
icculus@19
  1513
        window_flags20 |= SDL_WINDOW_RESIZABLE;
icculus@9
  1514
    }
icculus@19
  1515
    if (flags12 & SDL12_NOFRAME) {
icculus@19
  1516
        window_flags20 |= SDL_WINDOW_BORDERLESS;
icculus@9
  1517
    }
icculus@9
  1518
    GetEnvironmentWindowPosition(width, height, &window_x, &window_y);
icculus@19
  1519
    VideoWindow20 =
icculus@19
  1520
        SDL20_CreateWindow(WindowTitle, window_x, window_y, width, height,
icculus@19
  1521
                         window_flags20);
icculus@19
  1522
    if (!VideoWindow20) {
icculus@9
  1523
        return NULL;
icculus@9
  1524
    }
icculus@19
  1525
    SDL20_SetWindowIcon(VideoWindow20, VideoIcon);
icculus@19
  1526
icculus@19
  1527
    SetupScreenSaver(flags12);
icculus@19
  1528
icculus@19
  1529
    window_flags20 = SDL_GetWindowFlags(VideoWindow20);
icculus@19
  1530
    surface_flags12 = 0;
icculus@19
  1531
    if (window_flags20 & SDL_WINDOW_FULLSCREEN) {
icculus@19
  1532
        surface_flags12 |= SDL_FULLSCREEN;
icculus@9
  1533
    }
icculus@19
  1534
    if ((window_flags & SDL_WINDOW_OPENGL) && (flags12 & SDL_OPENGL)) {
icculus@19
  1535
        surface_flags12 |= SDL_OPENGL;
icculus@9
  1536
    }
icculus@9
  1537
    if (window_flags & SDL_WINDOW_RESIZABLE) {
icculus@19
  1538
        surface_flags12 |= SDL_RESIZABLE;
icculus@9
  1539
    }
icculus@9
  1540
    if (window_flags & SDL_WINDOW_BORDERLESS) {
icculus@19
  1541
        surface_flags12 |= SDL_NOFRAME;
icculus@9
  1542
    }
icculus@9
  1543
icculus@19
  1544
    VideoFlags = flags12;
icculus@9
  1545
icculus@9
  1546
    /* If we're in OpenGL mode, just create a stub surface and we're done! */
icculus@19
  1547
    if (flags12 & SDL_OPENGL) {
icculus@19
  1548
        VideoContext = SDL_GL_CreateContext(VideoWindow20);
icculus@16
  1549
        if (!VideoContext) {
icculus@9
  1550
            return NULL;
icculus@9
  1551
        }
icculus@19
  1552
        if (SDL_GL_MakeCurrent(VideoWindow20, VideoContext) < 0) {
icculus@9
  1553
            return NULL;
icculus@9
  1554
        }
icculus@16
  1555
        VideoSurface =
icculus@9
  1556
            SDL_CreateRGBSurfaceFrom(NULL, width, height, bpp, 0, 0, 0, 0, 0);
icculus@16
  1557
        if (!VideoSurface) {
icculus@9
  1558
            return NULL;
icculus@9
  1559
        }
icculus@19
  1560
        VideoSurface->flags |= surface_flags12;
icculus@16
  1561
        PublicSurface = VideoSurface;
icculus@16
  1562
        return PublicSurface;
icculus@9
  1563
    }
icculus@9
  1564
icculus@9
  1565
    /* Create the screen surface */
icculus@19
  1566
    WindowSurface = SDL_GetWindowSurface(VideoWindow20);
icculus@16
  1567
    if (!WindowSurface) {
icculus@9
  1568
        return NULL;
icculus@9
  1569
    }
icculus@9
  1570
icculus@9
  1571
    /* Center the public surface in the window surface */
icculus@19
  1572
    SDL_GetWindowSize(VideoWindow20, &window_w, &window_h);
icculus@16
  1573
    VideoViewport.x = (window_w - width)/2;
icculus@16
  1574
    VideoViewport.y = (window_h - height)/2;
icculus@16
  1575
    VideoViewport.w = width;
icculus@16
  1576
    VideoViewport.h = height;
icculus@9
  1577
icculus@16
  1578
    VideoSurface = SDL_CreateRGBSurfaceFrom(NULL, 0, 0, 32, 0, 0, 0, 0, 0);
icculus@19
  1579
    VideoSurface->flags |= surface_flags12;
icculus@19
  1580
    VideoSurface->flags |= SDL12_DONTFREE;
icculus@16
  1581
    SDL_FreeFormat(VideoSurface->format);
icculus@16
  1582
    VideoSurface->format = WindowSurface->format;
icculus@16
  1583
    VideoSurface->format->refcount++;
icculus@16
  1584
    VideoSurface->w = width;
icculus@16
  1585
    VideoSurface->h = height;
icculus@16
  1586
    VideoSurface->pitch = WindowSurface->pitch;
icculus@16
  1587
    VideoSurface->pixels = (void *)((Uint8 *)WindowSurface->pixels +
icculus@16
  1588
        VideoViewport.y * VideoSurface->pitch +
icculus@16
  1589
        VideoViewport.x  * VideoSurface->format->BytesPerPixel);
icculus@16
  1590
    SDL_SetClipRect(VideoSurface, NULL);
icculus@9
  1591
icculus@9
  1592
    /* Create a shadow surface if necessary */
icculus@16
  1593
    if ((bpp != VideoSurface->format->BitsPerPixel)
icculus@19
  1594
        && !(flags12 & SDL12_ANYFORMAT)) {
icculus@16
  1595
        ShadowSurface =
icculus@9
  1596
            SDL_CreateRGBSurface(0, width, height, bpp, 0, 0, 0, 0);
icculus@16
  1597
        if (!ShadowSurface) {
icculus@9
  1598
            return NULL;
icculus@9
  1599
        }
icculus@19
  1600
        ShadowSurface->flags |= surface_flags12;
icculus@19
  1601
        ShadowSurface->flags |= SDL12_DONTFREE;
icculus@9
  1602
icculus@16
  1603
        /* 8-bit ShadowSurface surfaces report that they have exclusive palette */
icculus@16
  1604
        if (ShadowSurface->format->palette) {
icculus@19
  1605
            ShadowSurface->flags |= SDL12_HWPALETTE;
icculus@16
  1606
            SDL_DitherColors(ShadowSurface->format->palette->colors,
icculus@16
  1607
                             ShadowSurface->format->BitsPerPixel);
icculus@9
  1608
        }
icculus@16
  1609
        SDL_FillRect(ShadowSurface, NULL,
icculus@16
  1610
            SDL_MapRGB(ShadowSurface->format, 0, 0, 0));
icculus@9
  1611
    }
icculus@16
  1612
    PublicSurface =
icculus@16
  1613
        (ShadowSurface ? ShadowSurface : VideoSurface);
icculus@9
  1614
icculus@9
  1615
    ClearVideoSurface();
icculus@9
  1616
icculus@9
  1617
    /* We're finally done! */
icculus@16
  1618
    return PublicSurface;
icculus@9
  1619
}
icculus@9
  1620
icculus@9
  1621
SDL_Surface *
icculus@9
  1622
SDL_GetVideoSurface(void)
icculus@9
  1623
{
icculus@16
  1624
    return PublicSurface;
icculus@9
  1625
}
icculus@9
  1626
icculus@9
  1627
int
icculus@9
  1628
SDL_SetAlpha(SDL_Surface * surface, Uint32 flag, Uint8 value)
icculus@9
  1629
{
icculus@9
  1630
    if (flag & SDL_SRCALPHA) {
icculus@9
  1631
        /* According to the docs, value is ignored for alpha surfaces */
icculus@9
  1632
        if (surface->format->Amask) {
icculus@9
  1633
            value = 0xFF;
icculus@9
  1634
        }
icculus@9
  1635
        SDL_SetSurfaceAlphaMod(surface, value);
icculus@9
  1636
        SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_BLEND);
icculus@9
  1637
    } else {
icculus@9
  1638
        SDL_SetSurfaceAlphaMod(surface, 0xFF);
icculus@9
  1639
        SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_NONE);
icculus@9
  1640
    }
icculus@9
  1641
    SDL_SetSurfaceRLE(surface, (flag & SDL_RLEACCEL));
icculus@9
  1642
icculus@9
  1643
    return 0;
icculus@9
  1644
}
icculus@9
  1645
icculus@19
  1646
SDL12_Surface *
icculus@19
  1647
SDL_DisplayFormat(SDL12_Surface *surface12)
icculus@9
  1648
{
icculus@19
  1649
    SDL12_PixelFormat *format;
icculus@9
  1650
icculus@16
  1651
    if (!PublicSurface) {
icculus@19
  1652
        SDL20_SetError("No video mode has been set");
icculus@9
  1653
        return NULL;
icculus@9
  1654
    }
icculus@16
  1655
    format = PublicSurface->format;
icculus@9
  1656
icculus@9
  1657
    /* Set the flags appropriate for copying to display surface */
icculus@19
  1658
    return SDL_ConvertSurface(surface, format, SDL12_RLEACCEL);
icculus@9
  1659
}
icculus@9
  1660
icculus@19
  1661
SDL12_Surface *
icculus@19
  1662
SDL_DisplayFormatAlpha(SDL12_Surface *surface)
icculus@9
  1663
{
icculus@9
  1664
    SDL_PixelFormat *vf;
icculus@9
  1665
    SDL_PixelFormat *format;
icculus@9
  1666
    SDL_Surface *converted;
icculus@9
  1667
    /* default to ARGB8888 */
icculus@9
  1668
    Uint32 amask = 0xff000000;
icculus@9
  1669
    Uint32 rmask = 0x00ff0000;
icculus@9
  1670
    Uint32 gmask = 0x0000ff00;
icculus@9
  1671
    Uint32 bmask = 0x000000ff;
icculus@9
  1672
icculus@16
  1673
    if (!PublicSurface) {
icculus@9
  1674
        SDL_SetError("No video mode has been set");
icculus@9
  1675
        return NULL;
icculus@9
  1676
    }
icculus@16
  1677
    vf = PublicSurface->format;
icculus@9
  1678
icculus@9
  1679
    switch (vf->BytesPerPixel) {
icculus@9
  1680
    case 2:
icculus@9
  1681
        /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}.
icculus@9
  1682
           For anything else (like ARGB4444) it doesn't matter
icculus@9
  1683
           since we have no special code for it anyway */
icculus@9
  1684
        if ((vf->Rmask == 0x1f) &&
icculus@9
  1685
            (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) {
icculus@9
  1686
            rmask = 0xff;
icculus@9
  1687
            bmask = 0xff0000;
icculus@9
  1688
        }
icculus@9
  1689
        break;
icculus@9
  1690
icculus@9
  1691
    case 3:
icculus@9
  1692
    case 4:
icculus@9
  1693
        /* Keep the video format, as long as the high 8 bits are
icculus@9
  1694
           unused or alpha */
icculus@9
  1695
        if ((vf->Rmask == 0xff) && (vf->Bmask == 0xff0000)) {
icculus@9
  1696
            rmask = 0xff;
icculus@9
  1697
            bmask = 0xff0000;
icculus@9
  1698
        }
icculus@9
  1699
        break;
icculus@9
  1700
icculus@9
  1701
    default:
icculus@9
  1702
        /* We have no other optimised formats right now. When/if a new
icculus@9
  1703
           optimised alpha format is written, add the converter here */
icculus@9
  1704
        break;
icculus@9
  1705
    }
icculus@9
  1706
    format = SDL_AllocFormat(SDL_MasksToPixelFormatEnum(32, rmask,
icculus@9
  1707
                                                            gmask,
icculus@9
  1708
                                                            bmask,
icculus@9
  1709
                                                            amask));
icculus@9
  1710
    if (!format) {
icculus@9
  1711
        return NULL;
icculus@9
  1712
    }
icculus@9
  1713
    converted = SDL_ConvertSurface(surface, format, SDL_RLEACCEL);
icculus@9
  1714
    SDL_FreeFormat(format);
icculus@9
  1715
    return converted;
icculus@9
  1716
}
icculus@9
  1717
icculus@9
  1718
int
icculus@9
  1719
SDL_Flip(SDL_Surface * screen)
icculus@9
  1720
{
icculus@9
  1721
    SDL_UpdateRect(screen, 0, 0, 0, 0);
icculus@9
  1722
    return 0;
icculus@9
  1723
}
icculus@9
  1724
icculus@9
  1725
void
icculus@9
  1726
SDL_UpdateRect(SDL_Surface * screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h)
icculus@9
  1727
{
icculus@9
  1728
    if (screen) {
icculus@9
  1729
        SDL_Rect rect;
icculus@9
  1730
icculus@9
  1731
        /* Fill the rectangle */
icculus@9
  1732
        rect.x = (int) x;
icculus@9
  1733
        rect.y = (int) y;
icculus@9
  1734
        rect.w = (int) (w ? w : screen->w);
icculus@9
  1735
        rect.h = (int) (h ? h : screen->h);
icculus@9
  1736
        SDL_UpdateRects(screen, 1, &rect);
icculus@9
  1737
    }
icculus@9
  1738
}
icculus@9
  1739
icculus@9
  1740
void
icculus@9
  1741
SDL_UpdateRects(SDL_Surface * screen, int numrects, SDL_Rect * rects)
icculus@9
  1742
{
icculus@9
  1743
    int i;
icculus@9
  1744
icculus@16
  1745
    if (screen == ShadowSurface) {
icculus@9
  1746
        for (i = 0; i < numrects; ++i) {
icculus@16
  1747
            SDL_BlitSurface(ShadowSurface, &rects[i], VideoSurface,
icculus@9
  1748
                            &rects[i]);
icculus@9
  1749
        }
icculus@9
  1750
icculus@9
  1751
        /* Fall through to video surface update */
icculus@16
  1752
        screen = VideoSurface;
icculus@9
  1753
    }
icculus@16
  1754
    if (screen == VideoSurface) {
icculus@16
  1755
        if (VideoViewport.x || VideoViewport.y) {
icculus@9
  1756
            SDL_Rect *stackrects = SDL_stack_alloc(SDL_Rect, numrects);
icculus@9
  1757
            SDL_Rect *stackrect;
icculus@9
  1758
            const SDL_Rect *rect;
icculus@9
  1759
            
icculus@9
  1760
            /* Offset all the rectangles before updating */
icculus@9
  1761
            for (i = 0; i < numrects; ++i) {
icculus@9
  1762
                rect = &rects[i];
icculus@9
  1763
                stackrect = &stackrects[i];
icculus@16
  1764
                stackrect->x = VideoViewport.x + rect->x;
icculus@16
  1765
                stackrect->y = VideoViewport.y + rect->y;
icculus@9
  1766
                stackrect->w = rect->w;
icculus@9
  1767
                stackrect->h = rect->h;
icculus@9
  1768
            }
icculus@19
  1769
            SDL_UpdateWindowSurfaceRects(VideoWindow20, stackrects, numrects);
icculus@9
  1770
            SDL_stack_free(stackrects);
icculus@9
  1771
        } else {
icculus@19
  1772
            SDL_UpdateWindowSurfaceRects(VideoWindow20, rects, numrects);
icculus@9
  1773
        }
icculus@9
  1774
    }
icculus@9
  1775
}
icculus@9
  1776
icculus@9
  1777
void
icculus@9
  1778
SDL_WM_SetCaption(const char *title, const char *icon)
icculus@9
  1779
{
icculus@16
  1780
    if (WindowTitle) {
icculus@16
  1781
        SDL_free(WindowTitle);
icculus@9
  1782
    }
icculus@16
  1783
    if (WindowIconTitle) {
icculus@16
  1784
        SDL_free(WindowIconTitle);
icculus@9
  1785
    }
icculus@16
  1786
    WindowTitle = title ? SDL_strdup(title) : NULL;
icculus@16
  1787
    WindowIconTitle = icon ? SDL_strdup(icon) : NULL;
icculus@19
  1788
    SDL_SetWindowTitle(VideoWindow20, WindowTitle);
icculus@9
  1789
}
icculus@9
  1790
icculus@9
  1791
void
icculus@9
  1792
SDL_WM_GetCaption(const char **title, const char **icon)
icculus@9
  1793
{
icculus@9
  1794
    if (title) {
icculus@16
  1795
        *title = WindowTitle;
icculus@9
  1796
    }
icculus@9
  1797
    if (icon) {
icculus@16
  1798
        *icon = WindowIconTitle;
icculus@9
  1799
    }
icculus@9
  1800
}
icculus@9
  1801
icculus@9
  1802
void
icculus@9
  1803
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
icculus@9
  1804
{
icculus@9
  1805
    // !!! FIXME: free previous icon?
icculus@16
  1806
    VideoIcon = icon;
icculus@16
  1807
    ++VideoIcon->refcount;
icculus@9
  1808
}
icculus@9
  1809
icculus@9
  1810
int
icculus@9
  1811
SDL_WM_IconifyWindow(void)
icculus@9
  1812
{
icculus@19
  1813
    SDL_MinimizeWindow(VideoWindow20);
icculus@9
  1814
    return 0;
icculus@9
  1815
}
icculus@9
  1816
icculus@9
  1817
int
icculus@9
  1818
SDL_WM_ToggleFullScreen(SDL_Surface * surface)
icculus@9
  1819
{
icculus@9
  1820
    int length;
icculus@9
  1821
    void *pixels;
icculus@9
  1822
    Uint8 *src, *dst;
icculus@9
  1823
    int row;
icculus@9
  1824
    int window_w;
icculus@9
  1825
    int window_h;
icculus@9
  1826
icculus@16
  1827
    if (!PublicSurface) {
icculus@9
  1828
        SDL_SetError("SDL_SetVideoMode() hasn't been called");
icculus@9
  1829
        return 0;
icculus@9
  1830
    }
icculus@9
  1831
icculus@9
  1832
    /* Copy the old bits out */
icculus@16
  1833
    length = PublicSurface->w * PublicSurface->format->BytesPerPixel;
icculus@16
  1834
    pixels = SDL_malloc(PublicSurface->h * length);
icculus@16
  1835
    if (pixels && PublicSurface->pixels) {
icculus@16
  1836
        src = (Uint8*)PublicSurface->pixels;
icculus@9
  1837
        dst = (Uint8*)pixels;
icculus@16
  1838
        for (row = 0; row < PublicSurface->h; ++row) {
icculus@9
  1839
            SDL_memcpy(dst, src, length);
icculus@16
  1840
            src += PublicSurface->pitch;
icculus@9
  1841
            dst += length;
icculus@9
  1842
        }
icculus@9
  1843
    }
icculus@9
  1844
icculus@9
  1845
    /* Do the physical mode switch */
icculus@19
  1846
    if (SDL_GetWindowFlags(VideoWindow20) & SDL_WINDOW_FULLSCREEN) {
icculus@19
  1847
        if (SDL_SetWindowFullscreen(VideoWindow20, 0) < 0) {
icculus@9
  1848
            return 0;
icculus@9
  1849
        }
icculus@16
  1850
        PublicSurface->flags &= ~SDL_FULLSCREEN;
icculus@9
  1851
    } else {
icculus@19
  1852
        if (SDL_SetWindowFullscreen(VideoWindow20, 1) < 0) {
icculus@9
  1853
            return 0;
icculus@9
  1854
        }
icculus@16
  1855
        PublicSurface->flags |= SDL_FULLSCREEN;
icculus@9
  1856
    }
icculus@9
  1857
icculus@9
  1858
    /* Recreate the screen surface */
icculus@19
  1859
    WindowSurface = SDL_GetWindowSurface(VideoWindow20);
icculus@16
  1860
    if (!WindowSurface) {
icculus@9
  1861
        /* We're totally hosed... */
icculus@9
  1862
        return 0;
icculus@9
  1863
    }
icculus@9
  1864
icculus@9
  1865
    /* Center the public surface in the window surface */
icculus@19
  1866
    SDL_GetWindowSize(VideoWindow20, &window_w, &window_h);
icculus@16
  1867
    VideoViewport.x = (window_w - VideoSurface->w)/2;
icculus@16
  1868
    VideoViewport.y = (window_h - VideoSurface->h)/2;
icculus@16
  1869
    VideoViewport.w = VideoSurface->w;
icculus@16
  1870
    VideoViewport.h = VideoSurface->h;
icculus@9
  1871
icculus@9
  1872
    /* Do some shuffling behind the application's back if format changes */
icculus@16
  1873
    if (VideoSurface->format->format != WindowSurface->format->format) {
icculus@16
  1874
        if (ShadowSurface) {
icculus@16
  1875
            if (ShadowSurface->format->format == WindowSurface->format->format) {
icculus@9
  1876
                /* Whee!  We don't need a shadow surface anymore! */
icculus@16
  1877
                VideoSurface->flags &= ~SDL_DONTFREE;
icculus@16
  1878
                SDL_FreeSurface(VideoSurface);
icculus@16
  1879
                SDL_free(ShadowSurface->pixels);
icculus@16
  1880
                VideoSurface = ShadowSurface;
icculus@16
  1881
                VideoSurface->flags |= SDL_PREALLOC;
icculus@16
  1882
                ShadowSurface = NULL;
icculus@9
  1883
            } else {
icculus@9
  1884
                /* No problem, just change the video surface format */
icculus@16
  1885
                SDL_FreeFormat(VideoSurface->format);
icculus@16
  1886
                VideoSurface->format = WindowSurface->format;
icculus@16
  1887
                VideoSurface->format->refcount++;
icculus@16
  1888
                SDL_InvalidateMap(ShadowSurface->map);
icculus@9
  1889
            }
icculus@9
  1890
        } else {
icculus@9
  1891
            /* We can make the video surface the shadow surface */
icculus@16
  1892
            ShadowSurface = VideoSurface;
icculus@16
  1893
            ShadowSurface->pitch = SDL_CalculatePitch(ShadowSurface);
icculus@16
  1894
            ShadowSurface->pixels = SDL_malloc(ShadowSurface->h * ShadowSurface->pitch);
icculus@16
  1895
            if (!ShadowSurface->pixels) {
icculus@9
  1896
                /* Uh oh, we're hosed */
icculus@16
  1897
                ShadowSurface = NULL;
icculus@9
  1898
                return 0;
icculus@9
  1899
            }
icculus@16
  1900
            ShadowSurface->flags &= ~SDL_PREALLOC;
icculus@9
  1901
icculus@16
  1902
            VideoSurface = SDL_CreateRGBSurfaceFrom(NULL, 0, 0, 32, 0, 0, 0, 0, 0);
icculus@16
  1903
            VideoSurface->flags = ShadowSurface->flags;
icculus@16
  1904
            VideoSurface->flags |= SDL_PREALLOC;
icculus@16
  1905
            SDL_FreeFormat(VideoSurface->format);
icculus@16
  1906
            VideoSurface->format = WindowSurface->format;
icculus@16
  1907
            VideoSurface->format->refcount++;
icculus@16
  1908
            VideoSurface->w = ShadowSurface->w;
icculus@16
  1909
            VideoSurface->h = ShadowSurface->h;
icculus@9
  1910
        }
icculus@9
  1911
    }
icculus@9
  1912
icculus@9
  1913
    /* Update the video surface */
icculus@16
  1914
    VideoSurface->pitch = WindowSurface->pitch;
icculus@16
  1915
    VideoSurface->pixels = (void *)((Uint8 *)WindowSurface->pixels +
icculus@16
  1916
        VideoViewport.y * VideoSurface->pitch +
icculus@16
  1917
        VideoViewport.x  * VideoSurface->format->BytesPerPixel);
icculus@16
  1918
    SDL_SetClipRect(VideoSurface, NULL);
icculus@9
  1919
icculus@9
  1920
    /* Copy the old bits back */
icculus@9
  1921
    if (pixels) {
icculus@9
  1922
        src = (Uint8*)pixels;
icculus@16
  1923
        dst = (Uint8*)PublicSurface->pixels;
icculus@16
  1924
        for (row = 0; row < PublicSurface->h; ++row) {
icculus@9
  1925
            SDL_memcpy(dst, src, length);
icculus@9
  1926
            src += length;
icculus@16
  1927
            dst += PublicSurface->pitch;
icculus@9
  1928
        }
icculus@16
  1929
        SDL_Flip(PublicSurface);
icculus@9
  1930
        SDL_free(pixels);
icculus@9
  1931
    }
icculus@9
  1932
icculus@9
  1933
    /* We're done! */
icculus@9
  1934
    return 1;
icculus@9
  1935
}
icculus@9
  1936
icculus@9
  1937
SDL_GrabMode
icculus@9
  1938
SDL_WM_GrabInput(SDL_GrabMode mode)
icculus@9
  1939
{
icculus@9
  1940
    if (mode != SDL_GRAB_QUERY) {
icculus@19
  1941
        SDL_SetWindowGrab(VideoWindow20, mode);
icculus@9
  1942
    }
icculus@19
  1943
    return (SDL_GrabMode) SDL_GetWindowGrab(VideoWindow20);
icculus@9
  1944
}
icculus@9
  1945
icculus@9
  1946
void
icculus@9
  1947
SDL_WarpMouse(Uint16 x, Uint16 y)
icculus@9
  1948
{
icculus@19
  1949
    SDL_WarpMouseInWindow(VideoWindow20, x, y);
icculus@9
  1950
}
icculus@9
  1951
icculus@9
  1952
Uint8
icculus@9
  1953
SDL_GetAppState(void)
icculus@9
  1954
{
icculus@9
  1955
    Uint8 state = 0;
icculus@9
  1956
    Uint32 flags = 0;
icculus@9
  1957
icculus@19
  1958
    flags = SDL_GetWindowFlags(VideoWindow20);
icculus@9
  1959
    if ((flags & SDL_WINDOW_SHOWN) && !(flags & SDL_WINDOW_MINIMIZED)) {
icculus@9
  1960
        state |= SDL_APPACTIVE;
icculus@9
  1961
    }
icculus@9
  1962
    if (flags & SDL_WINDOW_INPUT_FOCUS) {
icculus@9
  1963
        state |= SDL_APPINPUTFOCUS;
icculus@9
  1964
    }
icculus@9
  1965
    if (flags & SDL_WINDOW_MOUSE_FOCUS) {
icculus@9
  1966
        state |= SDL_APPMOUSEFOCUS;
icculus@9
  1967
    }
icculus@9
  1968
    return state;
icculus@9
  1969
}
icculus@9
  1970
icculus@9
  1971
const SDL_version *
icculus@9
  1972
SDL_Linked_Version(void)
icculus@9
  1973
{
icculus@9
  1974
    static SDL_version version;
icculus@9
  1975
    SDL_VERSION(&version);
icculus@9
  1976
    return &version;
icculus@9
  1977
}
icculus@9
  1978
icculus@9
  1979
int
icculus@9
  1980
SDL_SetPalette(SDL_Surface * surface, int flags, const SDL_Color * colors,
icculus@9
  1981
               int firstcolor, int ncolors)
icculus@9
  1982
{
icculus@9
  1983
    return SDL_SetColors(surface, colors, firstcolor, ncolors);
icculus@9
  1984
}
icculus@9
  1985
icculus@9
  1986
int
icculus@9
  1987
SDL_SetColors(SDL_Surface * surface, const SDL_Color * colors, int firstcolor,
icculus@9
  1988
              int ncolors)
icculus@9
  1989
{
icculus@9
  1990
    if (SDL_SetPaletteColors
icculus@9
  1991
        (surface->format->palette, colors, firstcolor, ncolors) == 0) {
icculus@9
  1992
        return 1;
icculus@9
  1993
    } else {
icculus@9
  1994
        return 0;
icculus@9
  1995
    }
icculus@9
  1996
}
icculus@9
  1997
icculus@9
  1998
int
icculus@9
  1999
SDL_GetWMInfo(SDL_SysWMinfo * info)
icculus@9
  2000
{
icculus@19
  2001
    return SDL_GetWindowWMInfo(VideoWindow20, info);
icculus@9
  2002
}
icculus@9
  2003
icculus@9
  2004
#if 0
icculus@9
  2005
void
icculus@9
  2006
SDL_MoveCursor(int x, int y)
icculus@9
  2007
{
icculus@9
  2008
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2009
icculus@9
  2010
    /* Erase and update the current mouse position */
icculus@9
  2011
    if (SHOULD_DRAWCURSOR(SDL_cursorstate)) {
icculus@9
  2012
        /* Erase and redraw mouse cursor in new position */
icculus@9
  2013
        SDL_LockCursor();
icculus@16
  2014
        SDL_EraseCursor(VideoSurface);
icculus@9
  2015
        SDL_cursor->area.x = (x - SDL_cursor->hot_x);
icculus@9
  2016
        SDL_cursor->area.y = (y - SDL_cursor->hot_y);
icculus@16
  2017
        SDL_DrawCursor(VideoSurface);
icculus@9
  2018
        SDL_UnlockCursor();
icculus@9
  2019
    } else if (_this->MoveWMCursor) {
icculus@9
  2020
        _this->MoveWMCursor(_this, x, y);
icculus@9
  2021
    }
icculus@9
  2022
}
icculus@9
  2023
icculus@9
  2024
/* Keep track of the current cursor colors */
icculus@9
  2025
static int palette_changed = 1;
icculus@9
  2026
static Uint8 pixels8[2];
icculus@9
  2027
icculus@9
  2028
void
icculus@9
  2029
SDL_CursorPaletteChanged(void)
icculus@9
  2030
{
icculus@9
  2031
    palette_changed = 1;
icculus@9
  2032
}
icculus@9
  2033
icculus@9
  2034
void
icculus@9
  2035
SDL_MouseRect(SDL_Rect * area)
icculus@9
  2036
{
icculus@9
  2037
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2038
    int clip_diff;
icculus@9
  2039
icculus@9
  2040
    *area = SDL_cursor->area;
icculus@9
  2041
    if (area->x < 0) {
icculus@9
  2042
        area->w += area->x;
icculus@9
  2043
        area->x = 0;
icculus@9
  2044
    }
icculus@9
  2045
    if (area->y < 0) {
icculus@9
  2046
        area->h += area->y;
icculus@9
  2047
        area->y = 0;
icculus@9
  2048
    }
icculus@16
  2049
    clip_diff = (area->x + area->w) - VideoSurface->w;
icculus@9
  2050
    if (clip_diff > 0) {
icculus@9
  2051
        area->w = area->w < clip_diff ? 0 : area->w - clip_diff;
icculus@9
  2052
    }
icculus@16
  2053
    clip_diff = (area->y + area->h) - VideoSurface->h;
icculus@9
  2054
    if (clip_diff > 0) {
icculus@9
  2055
        area->h = area->h < clip_diff ? 0 : area->h - clip_diff;
icculus@9
  2056
    }
icculus@9
  2057
}
icculus@9
  2058
icculus@9
  2059
static void
icculus@9
  2060
SDL_DrawCursorFast(SDL_Surface * screen, SDL_Rect * area)
icculus@9
  2061
{
icculus@9
  2062
    const Uint32 pixels[2] = { 0xFFFFFFFF, 0x00000000 };
icculus@9
  2063
    int i, w, h;
icculus@9
  2064
    Uint8 *data, datab;
icculus@9
  2065
    Uint8 *mask, maskb;
icculus@9
  2066
icculus@9
  2067
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
icculus@9
  2068
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
icculus@9
  2069
    switch (screen->format->BytesPerPixel) {
icculus@9
  2070
icculus@9
  2071
    case 1:
icculus@9
  2072
        {
icculus@9
  2073
            Uint8 *dst;
icculus@9
  2074
            int dstskip;
icculus@9
  2075
icculus@9
  2076
            if (palette_changed) {
icculus@9
  2077
                pixels8[0] =
icculus@9
  2078
                    (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
icculus@9
  2079
                pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
icculus@9
  2080
                palette_changed = 0;
icculus@9
  2081
            }
icculus@9
  2082
            dst = (Uint8 *) screen->pixels +
icculus@9
  2083
                (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  2084
                SDL_cursor->area.x;
icculus@9
  2085
            dstskip = screen->pitch - area->w;
icculus@9
  2086
icculus@9
  2087
            for (h = area->h; h; h--) {
icculus@9
  2088
                for (w = area->w / 8; w; w--) {
icculus@9
  2089
                    maskb = *mask++;
icculus@9
  2090
                    datab = *data++;
icculus@9
  2091
                    for (i = 0; i < 8; ++i) {
icculus@9
  2092
                        if (maskb & 0x80) {
icculus@9
  2093
                            *dst = pixels8[datab >> 7];
icculus@9
  2094
                        }
icculus@9
  2095
                        maskb <<= 1;
icculus@9
  2096
                        datab <<= 1;
icculus@9
  2097
                        dst++;
icculus@9
  2098
                    }
icculus@9
  2099
                }
icculus@9
  2100
                dst += dstskip;
icculus@9
  2101
            }
icculus@9
  2102
        }
icculus@9
  2103
        break;
icculus@9
  2104
icculus@9
  2105
    case 2:
icculus@9
  2106
        {
icculus@9
  2107
            Uint16 *dst;
icculus@9
  2108
            int dstskip;
icculus@9
  2109
icculus@9
  2110
            dst = (Uint16 *) screen->pixels +
icculus@9
  2111
                (SDL_cursor->area.y + area->y) * screen->pitch / 2 +
icculus@9
  2112
                SDL_cursor->area.x;
icculus@9
  2113
            dstskip = (screen->pitch / 2) - area->w;
icculus@9
  2114
icculus@9
  2115
            for (h = area->h; h; h--) {
icculus@9
  2116
                for (w = area->w / 8; w; w--) {
icculus@9
  2117
                    maskb = *mask++;
icculus@9
  2118
                    datab = *data++;
icculus@9
  2119
                    for (i = 0; i < 8; ++i) {
icculus@9
  2120
                        if (maskb & 0x80) {
icculus@9
  2121
                            *dst = (Uint16) pixels[datab >> 7];
icculus@9
  2122
                        }
icculus@9
  2123
                        maskb <<= 1;
icculus@9
  2124
                        datab <<= 1;
icculus@9
  2125
                        dst++;
icculus@9
  2126
                    }
icculus@9
  2127
                }
icculus@9
  2128
                dst += dstskip;
icculus@9
  2129
            }
icculus@9
  2130
        }
icculus@9
  2131
        break;
icculus@9
  2132
icculus@9
  2133
    case 3:
icculus@9
  2134
        {
icculus@9
  2135
            Uint8 *dst;
icculus@9
  2136
            int dstskip;
icculus@9
  2137
icculus@9
  2138
            dst = (Uint8 *) screen->pixels +
icculus@9
  2139
                (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  2140
                SDL_cursor->area.x * 3;
icculus@9
  2141
            dstskip = screen->pitch - area->w * 3;
icculus@9
  2142
icculus@9
  2143
            for (h = area->h; h; h--) {
icculus@9
  2144
                for (w = area->w / 8; w; w--) {
icculus@9
  2145
                    maskb = *mask++;
icculus@9
  2146
                    datab = *data++;
icculus@9
  2147
                    for (i = 0; i < 8; ++i) {
icculus@9
  2148
                        if (maskb & 0x80) {
icculus@9
  2149
                            SDL_memset(dst, pixels[datab >> 7], 3);
icculus@9
  2150
                        }
icculus@9
  2151
                        maskb <<= 1;
icculus@9
  2152
                        datab <<= 1;
icculus@9
  2153
                        dst += 3;
icculus@9
  2154
                    }
icculus@9
  2155
                }
icculus@9
  2156
                dst += dstskip;
icculus@9
  2157
            }
icculus@9
  2158
        }
icculus@9
  2159
        break;
icculus@9
  2160
icculus@9
  2161
    case 4:
icculus@9
  2162
        {
icculus@9
  2163
            Uint32 *dst;
icculus@9
  2164
            int dstskip;
icculus@9
  2165
icculus@9
  2166
            dst = (Uint32 *) screen->pixels +
icculus@9
  2167
                (SDL_cursor->area.y + area->y) * screen->pitch / 4 +
icculus@9
  2168
                SDL_cursor->area.x;
icculus@9
  2169
            dstskip = (screen->pitch / 4) - area->w;
icculus@9
  2170
icculus@9
  2171
            for (h = area->h; h; h--) {
icculus@9
  2172
                for (w = area->w / 8; w; w--) {
icculus@9
  2173
                    maskb = *mask++;
icculus@9
  2174
                    datab = *data++;
icculus@9
  2175
                    for (i = 0; i < 8; ++i) {
icculus@9
  2176
                        if (maskb & 0x80) {
icculus@9
  2177
                            *dst = pixels[datab >> 7];
icculus@9
  2178
                        }
icculus@9
  2179
                        maskb <<= 1;
icculus@9
  2180
                        datab <<= 1;
icculus@9
  2181
                        dst++;
icculus@9
  2182
                    }
icculus@9
  2183
                }
icculus@9
  2184
                dst += dstskip;
icculus@9
  2185
            }
icculus@9
  2186
        }
icculus@9
  2187
        break;
icculus@9
  2188
    }
icculus@9
  2189
}
icculus@9
  2190
icculus@9
  2191
static void
icculus@9
  2192
SDL_DrawCursorSlow(SDL_Surface * screen, SDL_Rect * area)
icculus@9
  2193
{
icculus@9
  2194
    const Uint32 pixels[2] = { 0xFFFFFF, 0x000000 };
icculus@9
  2195
    int h;
icculus@9
  2196
    int x, minx, maxx;
icculus@9
  2197
    Uint8 *data, datab = 0;
icculus@9
  2198
    Uint8 *mask, maskb = 0;
icculus@9
  2199
    Uint8 *dst;
icculus@9
  2200
    int dstbpp, dstskip;
icculus@9
  2201
icculus@9
  2202
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
icculus@9
  2203
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
icculus@9
  2204
    dstbpp = screen->format->BytesPerPixel;
icculus@9
  2205
    dst = (Uint8 *) screen->pixels +
icculus@9
  2206
        (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  2207
        SDL_cursor->area.x * dstbpp;
icculus@9
  2208
    dstskip = screen->pitch - SDL_cursor->area.w * dstbpp;
icculus@9
  2209
icculus@9
  2210
    minx = area->x;
icculus@9
  2211
    maxx = area->x + area->w;
icculus@9
  2212
    if (screen->format->BytesPerPixel == 1) {
icculus@9
  2213
        if (palette_changed) {
icculus@9
  2214
            pixels8[0] = (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
icculus@9
  2215
            pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
icculus@9
  2216
            palette_changed = 0;
icculus@9
  2217
        }
icculus@9
  2218
        for (h = area->h; h; h--) {
icculus@9
  2219
            for (x = 0; x < SDL_cursor->area.w; ++x) {
icculus@9
  2220
                if ((x % 8) == 0) {
icculus@9
  2221
                    maskb = *mask++;
icculus@9
  2222
                    datab = *data++;
icculus@9
  2223
                }
icculus@9
  2224
                if ((x >= minx) && (x < maxx)) {
icculus@9
  2225
                    if (maskb & 0x80) {
icculus@9
  2226
                        SDL_memset(dst, pixels8[datab >> 7], dstbpp);
icculus@9
  2227
                    }
icculus@9
  2228
                }
icculus@9
  2229
                maskb <<= 1;
icculus@9
  2230
                datab <<= 1;
icculus@9
  2231
                dst += dstbpp;
icculus@9
  2232
            }
icculus@9
  2233
            dst += dstskip;
icculus@9
  2234
        }
icculus@9
  2235
    } else {
icculus@9
  2236
        for (h = area->h; h; h--) {
icculus@9
  2237
            for (x = 0; x < SDL_cursor->area.w; ++x) {
icculus@9
  2238
                if ((x % 8) == 0) {
icculus@9
  2239
                    maskb = *mask++;
icculus@9
  2240
                    datab = *data++;
icculus@9
  2241
                }
icculus@9
  2242
                if ((x >= minx) && (x < maxx)) {
icculus@9
  2243
                    if (maskb & 0x80) {
icculus@9
  2244
                        SDL_memset(dst, pixels[datab >> 7], dstbpp);
icculus@9
  2245
                    }
icculus@9
  2246
                }
icculus@9
  2247
                maskb <<= 1;
icculus@9
  2248
                datab <<= 1;
icculus@9
  2249
                dst += dstbpp;
icculus@9
  2250
            }
icculus@9
  2251
            dst += dstskip;
icculus@9
  2252
        }
icculus@9
  2253
    }
icculus@9
  2254
}
icculus@9
  2255
icculus@9
  2256
/* This handles the ugly work of converting the saved cursor background from
icculus@9
  2257
   the pixel format of the shadow surface to that of the video surface.
icculus@9
  2258
   This is only necessary when blitting from a shadow surface of a different
icculus@9
  2259
   pixel format than the video surface, and using a software rendered cursor.
icculus@9
  2260
*/
icculus@9
  2261
static void
icculus@9
  2262
SDL_ConvertCursorSave(SDL_Surface * screen, int w, int h)
icculus@9
  2263
{
icculus@9
  2264
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2265
    SDL_BlitInfo info;
icculus@9
  2266
    SDL_loblit RunBlit;
icculus@9
  2267
icculus@9
  2268
    /* Make sure we can steal the blit mapping */
icculus@16
  2269
    if (screen->map->dst != VideoSurface) {
icculus@9
  2270
        return;
icculus@9
  2271
    }
icculus@9
  2272
icculus@9
  2273
    /* Set up the blit information */
icculus@9
  2274
    info.s_pixels = SDL_cursor->save[1];
icculus@9
  2275
    info.s_width = w;
icculus@9
  2276
    info.s_height = h;
icculus@9
  2277
    info.s_skip = 0;
icculus@9
  2278
    info.d_pixels = SDL_cursor->save[0];
icculus@9
  2279
    info.d_width = w;
icculus@9
  2280
    info.d_height = h;
icculus@9
  2281
    info.d_skip = 0;
icculus@9
  2282
    info.aux_data = screen->map->sw_data->aux_data;
icculus@9
  2283
    info.src = screen->format;
icculus@9
  2284
    info.table = screen->map->table;
icculus@16
  2285
    info.dst = VideoSurface->format;
icculus@9
  2286
    RunBlit = screen->map->sw_data->blit;
icculus@9
  2287
icculus@9
  2288
    /* Run the actual software blit */
icculus@9
  2289
    RunBlit(&info);
icculus@9
  2290
}
icculus@9
  2291
icculus@9
  2292
void
icculus@9
  2293
SDL_DrawCursorNoLock(SDL_Surface * screen)
icculus@9
  2294
{
icculus@9
  2295
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2296
    SDL_Rect area;
icculus@9
  2297
icculus@9
  2298
    /* Get the mouse rectangle, clipped to the screen */
icculus@9
  2299
    SDL_MouseRect(&area);
icculus@9
  2300
    if ((area.w == 0) || (area.h == 0)) {
icculus@9
  2301
        return;
icculus@9
  2302
    }
icculus@9
  2303
icculus@9
  2304
    /* Copy mouse background */
icculus@9
  2305
    {
icculus@9
  2306
        int w, h, screenbpp;
icculus@9
  2307
        Uint8 *src, *dst;
icculus@9
  2308
icculus@9
  2309
        /* Set up the copy pointers */
icculus@9
  2310
        screenbpp = screen->format->BytesPerPixel;
icculus@16
  2311
        if ((screen == VideoSurface) ||
icculus@16
  2312
            FORMAT_EQUAL(screen->format, VideoSurface->format)) {
icculus@9
  2313
            dst = SDL_cursor->save[0];
icculus@9
  2314
        } else {
icculus@9
  2315
            dst = SDL_cursor->save[1];
icculus@9
  2316
        }
icculus@9
  2317
        src = (Uint8 *) screen->pixels + area.y * screen->pitch +
icculus@9
  2318
            area.x * screenbpp;
icculus@9
  2319
icculus@9
  2320
        /* Perform the copy */
icculus@9
  2321
        w = area.w * screenbpp;
icculus@9
  2322
        h = area.h;
icculus@9
  2323
        while (h--) {
icculus@9
  2324
            SDL_memcpy(dst, src, w);
icculus@9
  2325
            dst += w;
icculus@9
  2326
            src += screen->pitch;
icculus@9
  2327
        }
icculus@9
  2328
    }
icculus@9
  2329
icculus@9
  2330
    /* Draw the mouse cursor */
icculus@9
  2331
    area.x -= SDL_cursor->area.x;
icculus@9
  2332
    area.y -= SDL_cursor->area.y;
icculus@9
  2333
    if ((area.x == 0) && (area.w == SDL_cursor->area.w)) {
icculus@9
  2334
        SDL_DrawCursorFast(screen, &area);
icculus@9
  2335
    } else {
icculus@9
  2336
        SDL_DrawCursorSlow(screen, &area);
icculus@9
  2337
    }
icculus@9
  2338
}
icculus@9
  2339
icculus@9
  2340
void
icculus@9
  2341
SDL_DrawCursor(SDL_Surface * screen)
icculus@9
  2342
{
icculus@9
  2343
    /* Lock the screen if necessary */
icculus@9
  2344
    if (screen == NULL) {
icculus@9
  2345
        return;
icculus@9
  2346
    }
icculus@9
  2347
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2348
        if (SDL_LockSurface(screen) < 0) {
icculus@9
  2349
            return;
icculus@9
  2350
        }
icculus@9
  2351
    }
icculus@9
  2352
icculus@9
  2353
    SDL_DrawCursorNoLock(screen);
icculus@9
  2354
icculus@9
  2355
    /* Unlock the screen and update if necessary */
icculus@9
  2356
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2357
        SDL_UnlockSurface(screen);
icculus@9
  2358
    }
icculus@9
  2359
    if (screen->flags & SDL_SCREEN_SURFACE) {
icculus@9
  2360
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2361
        SDL_Window *window;
icculus@9
  2362
        SDL_Rect area;
icculus@9
  2363
icculus@9
  2364
        window = SDL_GetWindowFromSurface(screen);
icculus@9
  2365
        if (!window) {
icculus@9
  2366
            return;
icculus@9
  2367
        }
icculus@9
  2368
icculus@9
  2369
        SDL_MouseRect(&area);
icculus@9
  2370
icculus@9
  2371
        if (_this->UpdateWindowSurface) {
icculus@9
  2372
            _this->UpdateWindowSurface(_this, window, 1, &area);
icculus@9
  2373
        }
icculus@9
  2374
    }
icculus@9
  2375
}
icculus@9
  2376
icculus@9
  2377
void
icculus@9
  2378
SDL_EraseCursorNoLock(SDL_Surface * screen)
icculus@9
  2379
{
icculus@9
  2380
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2381
    SDL_Window *window;
icculus@9
  2382
    SDL_Rect area;
icculus@9
  2383
icculus@9
  2384
    /* Get the window associated with the surface */
icculus@9
  2385
    window = SDL_GetWindowFromSurface(screen);
icculus@9
  2386
    if (!window || !window->surface) {
icculus@9
  2387
        return;
icculus@9
  2388
    }
icculus@9
  2389
icculus@9
  2390
    /* Get the mouse rectangle, clipped to the screen */
icculus@9
  2391
    SDL_MouseRect(&area);
icculus@9
  2392
    if ((area.w == 0) || (area.h == 0)) {
icculus@9
  2393
        return;
icculus@9
  2394
    }
icculus@9
  2395
icculus@9
  2396
    /* Copy mouse background */
icculus@9
  2397
    {
icculus@9
  2398
        int w, h, screenbpp;
icculus@9
  2399
        Uint8 *src, *dst;
icculus@9
  2400
icculus@9
  2401
        /* Set up the copy pointers */
icculus@9
  2402
        screenbpp = screen->format->BytesPerPixel;
icculus@9
  2403
        if ((screen->flags & SDL_SCREEN_SURFACE) ||
icculus@9
  2404
            FORMAT_EQUAL(screen->format, window->surface->format)) {
icculus@9
  2405
            src = SDL_cursor->save[0];
icculus@9
  2406
        } else {
icculus@9
  2407
            src = SDL_cursor->save[1];
icculus@9
  2408
        }
icculus@9
  2409
        dst = (Uint8 *) screen->pixels + area.y * screen->pitch +
icculus@9
  2410
            area.x * screenbpp;
icculus@9
  2411
icculus@9
  2412
        /* Perform the copy */
icculus@9
  2413
        w = area.w * screenbpp;
icculus@9
  2414
        h = area.h;
icculus@9
  2415
        while (h--) {
icculus@9
  2416
            SDL_memcpy(dst, src, w);
icculus@9
  2417
            src += w;
icculus@9
  2418
            dst += screen->pitch;
icculus@9
  2419
        }
icculus@9
  2420
icculus@9
  2421
        /* Perform pixel conversion on cursor background */
icculus@9
  2422
        if (src > SDL_cursor->save[1]) {
icculus@9
  2423
            SDL_ConvertCursorSave(screen, area.w, area.h);
icculus@9
  2424
        }
icculus@9
  2425
    }
icculus@9
  2426
}
icculus@9
  2427
icculus@9
  2428
void
icculus@9
  2429
SDL_EraseCursor(SDL_Surface * screen)
icculus@9
  2430
{
icculus@9
  2431
    /* Lock the screen if necessary */
icculus@9
  2432
    if (screen == NULL) {
icculus@9
  2433
        return;
icculus@9
  2434
    }
icculus@9
  2435
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2436
        if (SDL_LockSurface(screen) < 0) {
icculus@9
  2437
            return;
icculus@9
  2438
        }
icculus@9
  2439
    }
icculus@9
  2440
icculus@9
  2441
    SDL_EraseCursorNoLock(screen);
icculus@9
  2442
icculus@9
  2443
    /* Unlock the screen and update if necessary */
icculus@9
  2444
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2445
        SDL_UnlockSurface(screen);
icculus@9
  2446
    }
icculus@9
  2447
    if (screen->flags & SDL_SCREEN_SURFACE) {
icculus@9
  2448
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2449
        SDL_Window *window;
icculus@9
  2450
        SDL_Rect area;
icculus@9
  2451
icculus@9
  2452
        window = SDL_GetWindowFromSurface(screen);
icculus@9
  2453
        if (!window) {
icculus@9
  2454
            return;
icculus@9
  2455
        }
icculus@9
  2456
icculus@9
  2457
        SDL_MouseRect(&area);
icculus@9
  2458
icculus@9
  2459
        if (_this->UpdateWindowSurface) {
icculus@9
  2460
            _this->UpdateWindowSurface(_this, window, 1, &area);
icculus@9
  2461
        }
icculus@9
  2462
    }
icculus@9
  2463
}
icculus@9
  2464
icculus@9
  2465
/* Reset the cursor on video mode change
icculus@9
  2466
   FIXME:  Keep track of all cursors, and reset them all.
icculus@9
  2467
 */
icculus@9
  2468
void
icculus@9
  2469
SDL_ResetCursor(void)
icculus@9
  2470
{
icculus@9
  2471
    int savelen;
icculus@9
  2472
icculus@9
  2473
    if (SDL_cursor) {
icculus@9
  2474
        savelen = SDL_cursor->area.w * 4 * SDL_cursor->area.h;
icculus@9
  2475
        SDL_cursor->area.x = 0;
icculus@9
  2476
        SDL_cursor->area.y = 0;
icculus@9
  2477
        SDL_memset(SDL_cursor->save[0], 0, savelen);
icculus@9
  2478
    }
icculus@9
  2479
}
icculus@9
  2480
#endif
icculus@9
  2481
icculus@9
  2482
struct private_yuvhwdata
icculus@9
  2483
{
icculus@9
  2484
    SDL_SW_YUVTexture *texture;
icculus@9
  2485
    SDL_Surface *display;
icculus@9
  2486
    Uint32 display_format;
icculus@9
  2487
};
icculus@9
  2488
icculus@9
  2489
SDL_Overlay *
icculus@9
  2490
SDL_CreateYUVOverlay(int w, int h, Uint32 format, SDL_Surface * display)
icculus@9
  2491
{
icculus@9
  2492
    SDL_Overlay *overlay;
icculus@9
  2493
    Uint32 texture_format;
icculus@9
  2494
    SDL_SW_YUVTexture *texture;
icculus@9
  2495
icculus@9
  2496
    if ((display->flags & SDL_OPENGL) == SDL_OPENGL) {
icculus@9
  2497
        SDL_SetError("YUV overlays are not supported in OpenGL mode");
icculus@9
  2498
        return NULL;
icculus@9
  2499
    }
icculus@9
  2500
icculus@16
  2501
    if (display != PublicSurface) {
icculus@9
  2502
        SDL_SetError("YUV display is only supported on the screen surface");
icculus@9
  2503
        return NULL;
icculus@9
  2504
    }
icculus@9
  2505
icculus@9
  2506
    switch (format) {
icculus@9
  2507
    case SDL_YV12_OVERLAY:
icculus@9
  2508
        texture_format = SDL_PIXELFORMAT_YV12;
icculus@9
  2509
        break;
icculus@9
  2510
    case SDL_IYUV_OVERLAY:
icculus@9
  2511
        texture_format = SDL_PIXELFORMAT_IYUV;
icculus@9
  2512
        break;
icculus@9
  2513
    case SDL_YUY2_OVERLAY:
icculus@9
  2514
        texture_format = SDL_PIXELFORMAT_YUY2;
icculus@9
  2515
        break;
icculus@9
  2516
    case SDL_UYVY_OVERLAY:
icculus@9
  2517
        texture_format = SDL_PIXELFORMAT_UYVY;
icculus@9
  2518
        break;
icculus@9
  2519
    case SDL_YVYU_OVERLAY:
icculus@9
  2520
        texture_format = SDL_PIXELFORMAT_YVYU;
icculus@9
  2521
        break;
icculus@9
  2522
    default:
icculus@9
  2523
        SDL_SetError("Unknown YUV format");
icculus@9
  2524
        return NULL;
icculus@9
  2525
    }
icculus@9
  2526
icculus@9
  2527
    overlay = (SDL_Overlay *) SDL_malloc(sizeof(*overlay));
icculus@9
  2528
    if (!overlay) {
icculus@9
  2529
        SDL_OutOfMemory();
icculus@9
  2530
        return NULL;
icculus@9
  2531
    }
icculus@9
  2532
    SDL_zerop(overlay);
icculus@9
  2533
icculus@9
  2534
    overlay->hwdata =
icculus@9
  2535
        (struct private_yuvhwdata *) SDL_malloc(sizeof(*overlay->hwdata));
icculus@9
  2536
    if (!overlay->hwdata) {
icculus@9
  2537
        SDL_free(overlay);
icculus@9
  2538
        SDL_OutOfMemory();
icculus@9
  2539
        return NULL;
icculus@9
  2540
    }
icculus@9
  2541
icculus@9
  2542
    texture = SDL_SW_CreateYUVTexture(texture_format, w, h);
icculus@9
  2543
    if (!texture) {
icculus@9
  2544
        SDL_free(overlay->hwdata);
icculus@9
  2545
        SDL_free(overlay);
icculus@9
  2546
        return NULL;
icculus@9
  2547
    }
icculus@9
  2548
    overlay->hwdata->texture = texture;
icculus@9
  2549
    overlay->hwdata->display = NULL;
icculus@9
  2550
    overlay->hwdata->display_format = SDL_PIXELFORMAT_UNKNOWN;
icculus@9
  2551
icculus@9
  2552
    overlay->format = format;
icculus@9
  2553
    overlay->w = w;
icculus@9
  2554
    overlay->h = h;
icculus@9
  2555
    if (format == SDL_YV12_OVERLAY || format == SDL_IYUV_OVERLAY) {
icculus@9
  2556
        overlay->planes = 3;
icculus@9
  2557
    } else {
icculus@9
  2558
        overlay->planes = 1;
icculus@9
  2559
    }
icculus@9
  2560
    overlay->pitches = texture->pitches;
icculus@9
  2561
    overlay->pixels = texture->planes;
icculus@9
  2562
icculus@9
  2563
    return overlay;
icculus@9
  2564
}
icculus@9
  2565
icculus@9
  2566
int
icculus@9
  2567
SDL_LockYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2568
{
icculus@9
  2569
    SDL_Rect rect;
icculus@9
  2570
    void *pixels;
icculus@9
  2571
    int pitch;
icculus@9
  2572
icculus@9
  2573
    if (!overlay) {
icculus@9
  2574
        SDL_SetError("Passed a NULL overlay");
icculus@9
  2575
        return -1;
icculus@9
  2576
    }
icculus@9
  2577
icculus@9
  2578
    rect.x = 0;
icculus@9
  2579
    rect.y = 0;
icculus@9
  2580
    rect.w = overlay->w;
icculus@9
  2581
    rect.h = overlay->h;
icculus@9
  2582
icculus@9
  2583
    if (SDL_SW_LockYUVTexture(overlay->hwdata->texture, &rect, &pixels, &pitch) < 0) {
icculus@9
  2584
        return -1;
icculus@9
  2585
    }
icculus@9
  2586
icculus@9
  2587
    overlay->pixels[0] = (Uint8 *) pixels;
icculus@9
  2588
    overlay->pitches[0] = pitch;
icculus@9
  2589
    switch (overlay->format) {
icculus@9
  2590
    case SDL_YV12_OVERLAY:
icculus@9
  2591
    case SDL_IYUV_OVERLAY:
icculus@9
  2592
        overlay->pitches[1] = pitch / 2;
icculus@9
  2593
        overlay->pitches[2] = pitch / 2;
icculus@9
  2594
        overlay->pixels[1] =
icculus@9
  2595
            overlay->pixels[0] + overlay->pitches[0] * overlay->h;
icculus@9
  2596
        overlay->pixels[2] =
icculus@9
  2597
            overlay->pixels[1] + overlay->pitches[1] * overlay->h / 2;
icculus@9
  2598
        break;
icculus@9
  2599
    case SDL_YUY2_OVERLAY:
icculus@9
  2600
    case SDL_UYVY_OVERLAY:
icculus@9
  2601
    case SDL_YVYU_OVERLAY:
icculus@9
  2602
        break;
icculus@9
  2603
    }
icculus@9
  2604
    return 0;
icculus@9
  2605
}
icculus@9
  2606
icculus@9
  2607
void
icculus@9
  2608
SDL_UnlockYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2609
{
icculus@9
  2610
    if (!overlay) {
icculus@9
  2611
        return;
icculus@9
  2612
    }
icculus@9
  2613
icculus@9
  2614
    SDL_SW_UnlockYUVTexture(overlay->hwdata->texture);
icculus@9
  2615
}
icculus@9
  2616
icculus@9
  2617
int
icculus@9
  2618
SDL_DisplayYUVOverlay(SDL_Overlay * overlay, SDL_Rect * dstrect)
icculus@9
  2619
{
icculus@9
  2620
    SDL_Surface *display;
icculus@9
  2621
    SDL_Rect src_rect;
icculus@9
  2622
    SDL_Rect dst_rect;
icculus@9
  2623
    void *pixels;
icculus@9
  2624
icculus@9
  2625
    if (!overlay || !dstrect) {
icculus@9
  2626
        SDL_SetError("Passed a NULL overlay or dstrect");
icculus@9
  2627
        return -1;
icculus@9
  2628
    }
icculus@9
  2629
icculus@9
  2630
    display = overlay->hwdata->display;
icculus@16
  2631
    if (display != VideoSurface) {
icculus@16
  2632
        overlay->hwdata->display = display = VideoSurface;
icculus@9
  2633
        overlay->hwdata->display_format = SDL_MasksToPixelFormatEnum(
icculus@9
  2634
                                                display->format->BitsPerPixel,
icculus@9
  2635
                                                display->format->Rmask,
icculus@9
  2636
                                                display->format->Gmask,
icculus@9
  2637
                                                display->format->Bmask,
icculus@9
  2638
                                                display->format->Amask);
icculus@9
  2639
    }
icculus@9
  2640
icculus@9
  2641
    src_rect.x = 0;
icculus@9
  2642
    src_rect.y = 0;
icculus@9
  2643
    src_rect.w = overlay->w;
icculus@9
  2644
    src_rect.h = overlay->h;
icculus@9
  2645
icculus@9
  2646
    if (!SDL_IntersectRect(&display->clip_rect, dstrect, &dst_rect)) {
icculus@9
  2647
        return 0;
icculus@9
  2648
    }
icculus@9
  2649
     
icculus@9
  2650
    pixels = (void *)((Uint8 *)display->pixels +
icculus@9
  2651
                        dst_rect.y * display->pitch +
icculus@9
  2652
                        dst_rect.x * display->format->BytesPerPixel);
icculus@9
  2653
icculus@9
  2654
    if (SDL_SW_CopyYUVToRGB(overlay->hwdata->texture, &src_rect,
icculus@9
  2655
                            overlay->hwdata->display_format,
icculus@9
  2656
                            dst_rect.w, dst_rect.h,
icculus@9
  2657
                            pixels, display->pitch) < 0) {
icculus@9
  2658
        return -1;
icculus@9
  2659
    }
icculus@19
  2660
    SDL_UpdateWindowSurface(VideoWindow20);
icculus@9
  2661
    return 0;
icculus@9
  2662
}
icculus@9
  2663
icculus@9
  2664
void
icculus@9
  2665
SDL_FreeYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2666
{
icculus@9
  2667
    if (!overlay) {
icculus@9
  2668
        return;
icculus@9
  2669
    }
icculus@9
  2670
    if (overlay->hwdata) {
icculus@9
  2671
        if (overlay->hwdata->texture) {
icculus@9
  2672
            SDL_SW_DestroyYUVTexture(overlay->hwdata->texture);
icculus@9
  2673
        }
icculus@9
  2674
        SDL_free(overlay->hwdata);
icculus@9
  2675
    }
icculus@9
  2676
    SDL_free(overlay);
icculus@9
  2677
}
icculus@9
  2678
icculus@9
  2679
void
icculus@9
  2680
SDL_GL_SwapBuffers(void)
icculus@9
  2681
{
icculus@19
  2682
    SDL_GL_SwapWindow(VideoWindow20);
icculus@9
  2683
}
icculus@9
  2684
icculus@9
  2685
int
icculus@9
  2686
SDL_SetGamma(float red, float green, float blue)
icculus@9
  2687
{
icculus@9
  2688
    Uint16 red_ramp[256];
icculus@9
  2689
    Uint16 green_ramp[256];
icculus@9
  2690
    Uint16 blue_ramp[256];
icculus@9
  2691
icculus@9
  2692
    SDL_CalculateGammaRamp(red, red_ramp);
icculus@9
  2693
    if (green == red) {
icculus@9
  2694
        SDL_memcpy(green_ramp, red_ramp, sizeof(red_ramp));
icculus@9
  2695
    } else {
icculus@9
  2696
        SDL_CalculateGammaRamp(green, green_ramp);
icculus@9
  2697
    }
icculus@9
  2698
    if (blue == red) {
icculus@9
  2699
        SDL_memcpy(blue_ramp, red_ramp, sizeof(red_ramp));
icculus@9
  2700
    } else {
icculus@9
  2701
        SDL_CalculateGammaRamp(blue, blue_ramp);
icculus@9
  2702
    }
icculus@19
  2703
    return SDL_SetWindowGammaRamp(VideoWindow20, red_ramp, green_ramp, blue_ramp);
icculus@9
  2704
}
icculus@9
  2705
icculus@9
  2706
int
icculus@9
  2707
SDL_SetGammaRamp(const Uint16 * red, const Uint16 * green, const Uint16 * blue)
icculus@9
  2708
{
icculus@19
  2709
    return SDL_SetWindowGammaRamp(VideoWindow20, red, green, blue);
icculus@9
  2710
}
icculus@9
  2711
icculus@9
  2712
int
icculus@9
  2713
SDL_GetGammaRamp(Uint16 * red, Uint16 * green, Uint16 * blue)
icculus@9
  2714
{
icculus@19
  2715
    return SDL_GetWindowGammaRamp(VideoWindow20, red, green, blue);
icculus@9
  2716
}
icculus@9
  2717
icculus@9
  2718
int
icculus@9
  2719
SDL_EnableKeyRepeat(int delay, int interval)
icculus@9
  2720
{
icculus@9
  2721
    return 0;
icculus@9
  2722
}
icculus@9
  2723
icculus@9
  2724
void
icculus@9
  2725
SDL_GetKeyRepeat(int *delay, int *interval)
icculus@9
  2726
{
icculus@9
  2727
    if (delay) {
icculus@9
  2728
        *delay = SDL_DEFAULT_REPEAT_DELAY;
icculus@9
  2729
    }
icculus@9
  2730
    if (interval) {
icculus@9
  2731
        *interval = SDL_DEFAULT_REPEAT_INTERVAL;
icculus@9
  2732
    }
icculus@9
  2733
}
icculus@9
  2734
icculus@19
  2735
icculus@19
  2736
icculus@19
  2737
icculus@9
  2738
int
icculus@9
  2739
SDL_EnableUNICODE(int enable)
icculus@9
  2740
{
icculus@16
  2741
    int previous = EnabledUnicode;
icculus@9
  2742
icculus@9
  2743
    switch (enable) {