src/SDL12_compat.c
author Ryan C. Gordon <icculus@icculus.org>
Thu, 11 Apr 2013 21:27:04 -0400
changeset 26 34c2ae82780a
parent 25 2dfd8573dba0
child 27 4b3e208d2c10
permissions -rw-r--r--
Implemented SDL_CreateThread().
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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_EventState
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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 SDL_WaitEvent
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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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// !!! 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
   411
        #define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) SDL20_SYM(rc,fn,params,args,ret)
icculus@9
   412
        #include "SDL20_syms.h"
icculus@9
   413
        #undef SDL20_SYM_PASSTHROUGH
icculus@9
   414
        #undef SDL20_SYM
icculus@11
   415
        SDL20_SetError = (SDL20_SetError_t) LoadSDL20Symbol("SDL_SetError", &okay);
icculus@9
   416
        if (!okay)
icculus@9
   417
            UnloadSDL20();
icculus@9
   418
    }
icculus@9
   419
    return okay;
icculus@9
   420
}
icculus@9
   421
icculus@9
   422
icculus@9
   423
static int
icculus@9
   424
GetVideoDisplay()
icculus@9
   425
{
icculus@9
   426
    // !!! FIXME: cache this value during SDL_Init() so it doesn't change.
icculus@9
   427
    const char *variable = SDL_getenv("SDL_VIDEO_FULLSCREEN_DISPLAY");
icculus@9
   428
    if ( !variable ) {
icculus@9
   429
        variable = SDL_getenv("SDL_VIDEO_FULLSCREEN_HEAD");
icculus@9
   430
    }
icculus@9
   431
    if ( variable ) {
icculus@9
   432
        return SDL_atoi(variable);
icculus@9
   433
    } else {
icculus@9
   434
        return 0;
icculus@9
   435
    }
icculus@9
   436
}
icculus@9
   437
icculus@11
   438
static int
icculus@11
   439
DoSDLInit(const int justsubs, Uint32 sdl12flags)
icculus@9
   440
{
icculus@9
   441
    Uint32 sdl20flags = 0;
icculus@9
   442
    int rc;
icculus@9
   443
icculus@9
   444
    if (!LoadSDL20())
icculus@9
   445
        return -1;
icculus@9
   446
icculus@19
   447
    #define SETFLAG(flag) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag
icculus@9
   448
    SETFLAG(TIMER);
icculus@9
   449
    SETFLAG(AUDIO);
icculus@9
   450
    SETFLAG(VIDEO);
icculus@9
   451
    SETFLAG(JOYSTICK);
icculus@9
   452
    SETFLAG(NOPARACHUTE);
icculus@11
   453
    #undef SETFLAG
icculus@11
   454
icculus@11
   455
    // There's no CDROM in 2.0, but we'll just pretend it succeeded.
icculus@11
   456
    if (sdl12flags & SDL12_INIT_CDROM)
icculus@16
   457
        CDRomInit = 1;
icculus@11
   458
icculus@11
   459
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   460
icculus@11
   461
    rc = justsubs ? SDL20_InitSubSystem(sdl20flags) : SDL20_Init(sdl20flags);
icculus@11
   462
    if ((rc == 0) && (sdl20flags & SDL_INIT_VIDEO))
icculus@18
   463
    {
icculus@20
   464
        int i;
icculus@20
   465
        for (i = 0; i < SDL12_MAXEVENTS-1; i++)
icculus@20
   466
            EventQueuePool[i].next = &EventQueuePool[i+1];
icculus@20
   467
        EventQueuePool[SDL12_MAXEVENTS-1].next = NULL;
icculus@20
   468
        EventQueueHead = EventQueueTail = NULL;
icculus@20
   469
        EventQueueAvailable = EventQueuePool;
icculus@20
   470
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@18
   793
    if ((!EventFilter12) || (EventFilter12(&event12)))
icculus@18
   794
        SDL_PushEvent(&event12);
icculus@18
   795
icculus@18
   796
    return 0;  /* always drop it from the 2.0 event queue. */
icculus@18
   797
}
icculus@18
   798
icculus@18
   799
int
icculus@18
   800
SDL_PollEvent(SDL12_Event *event12)
icculus@18
   801
{
icculus@20
   802
    EventQueueType *next;
icculus@20
   803
icculus@18
   804
    SDL20_PumpEvents();  /* this will run our filter and build our 1.2 queue. */
icculus@18
   805
icculus@20
   806
    if (EventQueueHead == NULL)
icculus@18
   807
        return 0;  /* no events at the moment. */
icculus@18
   808
icculus@20
   809
    SDL_memcpy(event12, &EventQueueHead->event12, sizeof (SDL12_Event));
icculus@20
   810
    next = EventQueueHead->next;
icculus@20
   811
    EventQueueHead->next = EventQueueAvailable;
icculus@20
   812
    EventQueueAvailable = EventQueueHead;
icculus@20
   813
    EventQueueHead = next;
icculus@18
   814
    return 1;
icculus@18
   815
}
icculus@18
   816
icculus@18
   817
int
icculus@18
   818
SDL_PushEvent(SDL12_Event *event12)
icculus@18
   819
{
icculus@20
   820
    EventQueueType *item = EventQueueAvailable;
icculus@20
   821
    if (item == NULL)
icculus@18
   822
        return -1;  /* no space available at the moment. */
icculus@18
   823
icculus@20
   824
    EventQueueAvailable = item->next;
icculus@20
   825
    if (EventQueueTail)
icculus@20
   826
        EventQueueTail->next = item;
icculus@20
   827
    else
icculus@20
   828
        EventQueueHead = EventQueueTail = item;
icculus@20
   829
    item->next = NULL;
icculus@20
   830
icculus@20
   831
    SDL_memcpy(&item->event12, event12, sizeof (SDL12_Event));
icculus@18
   832
    return 0;
icculus@18
   833
}
icculus@18
   834
icculus@18
   835
int
icculus@18
   836
SDL_PeepEvents(SDL12_Event *events12, int numevents, SDL_eventaction action, Uint32 mask)
icculus@18
   837
{
icculus@18
   838
    int i;
icculus@18
   839
icculus@18
   840
    if (action == SDL_ADDEVENT)
icculus@18
   841
    {
icculus@18
   842
        for (i = 0; i < numevents; i++)
icculus@18
   843
        {
icculus@20
   844
            if (SDL_PushEvent(&events12[i]) == -1)
icculus@18
   845
                break;  /* out of space for more events. */
icculus@18
   846
        }
icculus@18
   847
        return i;
icculus@18
   848
    }
icculus@18
   849
    else if ((action == SDL_PEEKEVENT) || (action == SDL_GETEVENT))
icculus@18
   850
    {
icculus@20
   851
        const int isGet = (action == SDL_GETEVENT);
icculus@20
   852
        EventQueueType *prev = NULL;
icculus@20
   853
        EventQueueType *item = EventQueueHead;
icculus@20
   854
        EventQueueType *next = NULL;
icculus@18
   855
        int chosen = 0;
icculus@18
   856
        while (chosen < numevents)
icculus@18
   857
        {
icculus@20
   858
            EventQueueType *nextPrev = item;
icculus@20
   859
            if (!item)
icculus@18
   860
                break;  /* no more events at the moment. */
icculus@18
   861
icculus@20
   862
            next = item->next;  /* copy, since we might overwrite item->next */
icculus@18
   863
icculus@18
   864
            if (mask & (1<<event12->type))
icculus@18
   865
            {
icculus@20
   866
                SDL_memcpy(&events12[chosen++], &item->event12, sizeof (SDL12_Event));
icculus@20
   867
                if (isGet)  /* remove from list? */
icculus@20
   868
                {
icculus@20
   869
                    if (prev != NULL)
icculus@20
   870
                        prev->next = next;
icculus@20
   871
                    if (item == EventQueueHead)
icculus@20
   872
                        EventQueueHead = next;
icculus@20
   873
                    if (item == EventQueueTail)
icculus@20
   874
                        EventQueueTail = prev;
icculus@20
   875
icculus@20
   876
                    /* put it back in the free pool. */
icculus@20
   877
                    item->next = EventQueueAvailable;
icculus@20
   878
                    EventQueueAvailable = item;
icculus@20
   879
                    nextPrev = prev;  /* previous item doesn't change. */
icculus@18
   880
                }
icculus@18
   881
            }
icculus@20
   882
icculus@20
   883
            item = next;
icculus@20
   884
            prev = nextPrev;
icculus@18
   885
        }
icculus@18
   886
        return chosen;
icculus@18
   887
    }
icculus@18
   888
icculus@18
   889
    return 0;
icculus@18
   890
}
icculus@18
   891
icculus@18
   892
void
icculus@18
   893
SDL_SetEventFilter(SDL12_EventFilter filter12)
icculus@18
   894
{
icculus@18
   895
    /* We always have a filter installed, but will call the app's too. */
icculus@18
   896
    EventFilter12 = filter12;
icculus@18
   897
}
icculus@18
   898
icculus@18
   899
SDL12_EventFilter
icculus@18
   900
SDL_GetEventFilter(void)
icculus@18
   901
{
icculus@18
   902
    return EventFilter12;
icculus@18
   903
}
icculus@18
   904
icculus@15
   905
icculus@15
   906
SDL12_Surface *
icculus@15
   907
Surface20to12(SDL_Surface *surface20)
icculus@15
   908
{
icculus@15
   909
    SDL12_Surface *surface12 = NULL;
icculus@15
   910
    SDL12_Palette *palette12 = NULL;
icculus@15
   911
    SDL12_PixelFormat *format12 = NULL;
icculus@15
   912
    UInt32 flags = 0;
icculus@15
   913
icculus@15
   914
    if (!surface20)
icculus@15
   915
        return NULL;
icculus@15
   916
icculus@15
   917
    surface12 = (SDL12_Surface *) SDL20_malloc(sizeof (SDL12_Surface));
icculus@15
   918
    if (!surface12)
icculus@15
   919
        goto failed;
icculus@15
   920
icculus@15
   921
    palette12 = (SDL12_Palette *) SDL20_malloc(sizeof (SDL12_Palette));
icculus@15
   922
    if (!palette12)
icculus@15
   923
        goto failed;
icculus@15
   924
icculus@15
   925
    format12 = (SDL12_PixelFormat *) SDL20_malloc(sizeof (SDL12_PixelFormat));
icculus@15
   926
    if (!format12)
icculus@15
   927
        goto failed;
icculus@15
   928
icculus@15
   929
    SDL_zerop(palette12);
icculus@15
   930
    palette12->ncolors = surface20->palette->ncolors;
icculus@15
   931
    palette12->colors = surface20->palette->colors;
icculus@15
   932
icculus@15
   933
    SDL_zerop(format12);
icculus@15
   934
    format12->palette = palette12;
icculus@15
   935
    format12->BitsPerPixel = surface20->format->BitsPerPixel;
icculus@15
   936
    format12->BytesPerPixel = surface20->format->BytesPerPixel;
icculus@15
   937
    format12->Rloss = surface20->format->Rloss;
icculus@15
   938
    format12->Gloss = surface20->format->Gloss;
icculus@15
   939
    format12->Bloss = surface20->format->Bloss;
icculus@15
   940
    format12->Aloss = surface20->format->Aloss;
icculus@15
   941
    format12->Rshift = surface20->format->Rshift;
icculus@15
   942
    format12->Gshift = surface20->format->Gshift;
icculus@15
   943
    format12->Bshift = surface20->format->Bshift;
icculus@15
   944
    format12->Ashift = surface20->format->Ashift;
icculus@15
   945
    format12->Rmask = surface20->format->Rmask;
icculus@15
   946
    format12->Gmask = surface20->format->Gmask;
icculus@15
   947
    format12->Bmask = surface20->format->Bmask;
icculus@15
   948
    format12->Amask = surface20->format->Amask;
icculus@15
   949
    /* !!! FIXME: format12->colorkey; */
icculus@15
   950
    /* !!! FIXME: format12->alpha; */
icculus@15
   951
icculus@15
   952
    SDL_zerop(surface12);
icculus@15
   953
    flags = surface20->flags;
icculus@15
   954
    #define MAPSURFACEFLAGS(fl) { if (surface20->flags & SDL_##fl) { surface12->flags |= SDL12_##fl; flags &= ~SDL_##fl; } }
icculus@15
   955
    MAPSURFACEFLAGS(PREALLOC);
icculus@15
   956
    MAPSURFACEFLAGS(RLEACCEL);
icculus@15
   957
    MAPSURFACEFLAGS(DONTFREE);
icculus@15
   958
    #undef MAPSURFACEFLAGS
icculus@17
   959
    assert(flags == 0);  /* non-zero if there's a flag we didn't map. */
icculus@15
   960
icculus@15
   961
    surface12->format = format12;
icculus@15
   962
    surface12->w = surface20->w;
icculus@15
   963
    surface12->h = surface20->h;
icculus@15
   964
    surface12->pitch = (Uint16) surface20->pitch;  /* !!! FIXME: make sure this fits in a Uint16 */
icculus@15
   965
    surface12->pixels = surface20->pixels;
icculus@15
   966
    surface12->offset = 0;
icculus@15
   967
    surface12->hwdata = surface20;
icculus@15
   968
    SDL20_memcpy(&surface12->clip_rect, &surface20->clip_rect, sizeof (SDL_Rect));
icculus@15
   969
    surface12->refcount = surface20->refcount;
icculus@15
   970
icculus@15
   971
    return surface12;
icculus@15
   972
icculus@15
   973
failed:
icculus@15
   974
    SDL20_free(surface12);
icculus@15
   975
    SDL20_free(palette12);
icculus@15
   976
    SDL20_free(format12);
icculus@15
   977
    return NULL;
icculus@15
   978
}
icculus@15
   979
icculus@15
   980
SDL12_Surface *
icculus@15
   981
SDL_CreateRGBSurface(Uint32 sdl12flags, int width, int height, int depth, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
icculus@15
   982
{
icculus@15
   983
    SDL_Surface *surface20 = SDL20_CreateRGBSurface(0, width, height, depth, Rmask, Gmask, Bmask, Amask);
icculus@15
   984
    SDL12_Surface *surface12 = Surface20to12(surface20);
icculus@15
   985
    if (!surface12) {
icculus@15
   986
        SDL20_FreeSurface(surface20);
icculus@15
   987
        return NULL;
icculus@15
   988
    }
icculus@15
   989
icculus@17
   990
    assert(surface12->flags == 0);  // shouldn't have prealloc, rleaccel, or dontfree.
icculus@15
   991
    return surface12;
icculus@15
   992
}
icculus@15
   993
icculus@15
   994
SDL12_Surface *
icculus@15
   995
SDL_CreateRGBSurfaceFrom(void *pixels, int width, int height, int depth, int pitch, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
icculus@15
   996
{
icculus@15
   997
    SDL_Surface *surface20 = SDL20_CreateRGBSurfaceFrom(pixels, width, height, depth, Rmask, Gmask, Bmask, Amask);
icculus@15
   998
    SDL12_Surface *surface12 = Surface20to12(surface20);
icculus@15
   999
    if (!surface12) {
icculus@15
  1000
        SDL20_FreeSurface(surface20);
icculus@15
  1001
        return NULL;
icculus@15
  1002
    }
icculus@15
  1003
icculus@17
  1004
    assert(surface12->flags == SDL12_PREALLOC);  // should _only_ have prealloc.
icculus@15
  1005
    return surface12;
icculus@15
  1006
}
icculus@15
  1007
icculus@15
  1008
void SDL_FreeSurface(SDL12_Surface *surface12)
icculus@15
  1009
{
icculus@15
  1010
    if (surface12) {
icculus@24
  1011
        SDL20_FreeSurface(surface12->hwdata);
icculus@15
  1012
        if (surface12->format) {
icculus@15
  1013
            SDL20_free(surface12->format->palette);
icculus@15
  1014
            SDL20_free(surface12->format);
icculus@15
  1015
        }
icculus@15
  1016
        SDL20_free(surface12);
icculus@15
  1017
    }
icculus@15
  1018
}
icculus@15
  1019
icculus@24
  1020
void
icculus@24
  1021
SDL_GetClipRect(SDL12_Surface *surface12, SDL_Rect *rect)
icculus@24
  1022
{
icculus@24
  1023
    if (surface12 && rect)
icculus@24
  1024
	    SDL_memcpy(rect, &surface12->clip_rect, sizeof (SDL_Rect));
icculus@24
  1025
}
icculus@24
  1026
icculus@24
  1027
SDL_bool
icculus@24
  1028
SDL_SetClipRect(SDL12_Surface *surface12, const SDL_Rect *rect)
icculus@24
  1029
{
icculus@24
  1030
    SDL_bool retval = SDL_FALSE;
icculus@24
  1031
    if (surface12)
icculus@24
  1032
    {
icculus@24
  1033
        retval = SDL20_SetClipRect(surface12->hwdata, rect);
icculus@24
  1034
        SDL20_GetClipRect(surface12->hwdata, &surface12->clip_rect);
icculus@24
  1035
    }
icculus@24
  1036
    return retval;
icculus@24
  1037
}
icculus@24
  1038
icculus@25
  1039
int
icculus@25
  1040
SDL_FillRect(SDL12_Surface *dst, SDL_Rect *dstrect, Uint32 color)
icculus@25
  1041
{
icculus@25
  1042
    const SDL_Rect orig_dstrect = *dstrect;
icculus@25
  1043
    const int retval = SDL20_FillRect(dst->hwdata, orig_dstrect, color);
icculus@25
  1044
    if (retval != -1)
icculus@25
  1045
    {
icculus@25
  1046
        if (dstrect)  /* 1.2 stores the clip intersection in dstrect */
icculus@25
  1047
            SDL20_IntersectRect(orig_dstrect, &dst->clip_rect, dstrect);
icculus@25
  1048
    }
icculus@25
  1049
    return retval;
icculus@25
  1050
}
icculus@25
  1051
icculus@25
  1052
icculus@17
  1053
static SDL_PixelFormat *
icculus@17
  1054
PixelFormat12to20(SDL_PixelFormat *format20, SDL_Palette *palette20, SDL12_PixelFormat *format12)
icculus@17
  1055
{
icculus@17
  1056
    palette20->ncolors = format12->palette->ncolors;
icculus@17
  1057
    palette20->colors = format12->palette->colors;
icculus@17
  1058
    palette20->version = 1;
icculus@17
  1059
    palette20->refcount = 1;
icculus@17
  1060
    format20->format = SDL_MasksToPixelFormatEnum(format12->BitsPerPixel, format12->Rmask, format12->Gmask, format12->Bmask, format12->Amask);
icculus@17
  1061
    format20->palette = palette20;
icculus@17
  1062
    format20->BitsPerPixel = format12->BitsPerPixel;
icculus@17
  1063
    format20->BytesPerPixel = format12->BytesPerPixel;
icculus@17
  1064
    format20->Rmask = format12->Rmask;
icculus@17
  1065
    format20->Gmask = format12->Gmask;
icculus@17
  1066
    format20->Bmask = format12->Bmask;
icculus@17
  1067
    format20->Amask = format12->Amask;
icculus@17
  1068
    format20->Rloss = format12->Rloss;
icculus@17
  1069
    format20->Gloss = format12->Gloss;
icculus@17
  1070
    format20->Bloss = format12->Bloss;
icculus@17
  1071
    format20->Aloss = format12->Aloss;
icculus@17
  1072
    format20->Rshift = format12->Rshift;
icculus@17
  1073
    format20->Gshift = format12->Gshift;
icculus@17
  1074
    format20->Bshift = format12->Bshift;
icculus@17
  1075
    format20->Ashift = format12->Ashift;
icculus@17
  1076
    format20->refcount = 1;
icculus@17
  1077
    format20->next = NULL;
icculus@17
  1078
    return format20;
icculus@17
  1079
}
icculus@17
  1080
icculus@17
  1081
Uint32
icculus@17
  1082
SDL_MapRGB(const SDL12_PixelFormat *format12, Uint8 r, Uint8 g, Uint8 b)
icculus@17
  1083
{
icculus@17
  1084
    /* This is probably way slower than apps expect. */
icculus@17
  1085
    SDL_PixelFormat format20;
icculus@17
  1086
    SDL_Palette palette20;
icculus@17
  1087
    return SDL20_MapRGB(PixelFormat12to20(&format20, &palette20, format12), r, g, b);
icculus@17
  1088
}
icculus@17
  1089
icculus@17
  1090
Uint32
icculus@17
  1091
SDL_MapRGBA(const SDL12_PixelFormat *format12, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
icculus@17
  1092
{
icculus@17
  1093
    /* This is probably way slower than apps expect. */
icculus@17
  1094
    SDL_PixelFormat format20;
icculus@17
  1095
    SDL_Palette palette20;
icculus@17
  1096
    return SDL20_MapRGBA(PixelFormat12to20(&format20, &palette20, format12), r, g, b, a);
icculus@17
  1097
}
icculus@17
  1098
icculus@17
  1099
void
icculus@17
  1100
SDL_GetRGB(Uint32 pixel, const SDL12_PixelFormat *format12, Uint8 *r, Uint8 *g, Uint8 *b)
icculus@17
  1101
{
icculus@17
  1102
    /* This is probably way slower than apps expect. */
icculus@17
  1103
    SDL_PixelFormat format20;
icculus@17
  1104
    SDL_Palette palette20;
icculus@17
  1105
    return SDL20_GetRGB(pixel, PixelFormat12to20(&format20, &palette20, format12), r, g, b);
icculus@17
  1106
}
icculus@17
  1107
icculus@17
  1108
void
icculus@17
  1109
SDL_GetRGBA(Uint32 pixel, const SDL12_PixelFormat *format12, Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *a)
icculus@17
  1110
{
icculus@17
  1111
    /* This is probably way slower than apps expect. */
icculus@17
  1112
    SDL_PixelFormat format20;
icculus@17
  1113
    SDL_Palette palette20;
icculus@17
  1114
    return SDL20_GetRGB(pixel, PixelFormat12to20(&format20, &palette20, format12), r, g, b, a);
icculus@17
  1115
}
icculus@15
  1116
icculus@9
  1117
const SDL12_VideoInfo *
icculus@9
  1118
SDL_GetVideoInfo(void)
icculus@9
  1119
{
icculus@9
  1120
    SDL_DisplayMode mode;
icculus@9
  1121
icculus@17
  1122
    if (!VideoInfo.vfmt && SDL20_GetDesktopDisplayMode(VideoDisplayIndex, &mode) == 0) {
icculus@17
  1123
        VideoInfo.vfmt = SDL20_AllocFormat(mode.format);
icculus@17
  1124
        VideoInfo.current_w = mode.w;
icculus@17
  1125
        VideoInfo.current_h = mode.h;
icculus@9
  1126
        // !!! FIXME
icculus@17
  1127
        //VideoInfo.wm_available = 1;
icculus@17
  1128
        //VideoInfo.video_mem = 1024 * 256;
icculus@9
  1129
    }
icculus@17
  1130
    return &VideoInfo;
icculus@9
  1131
}
icculus@9
  1132
icculus@9
  1133
int
icculus@9
  1134
SDL_VideoModeOK(int width, int height, int bpp, Uint32 sdl12flags)
icculus@9
  1135
{
icculus@9
  1136
    int i, nummodes, actual_bpp = 0;
icculus@9
  1137
icculus@9
  1138
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@9
  1139
        return 0;
icculus@9
  1140
    }
icculus@9
  1141
icculus@9
  1142
    if (!(sdl12flags & SDL12_FULLSCREEN)) {
icculus@9
  1143
        SDL_DisplayMode mode;
icculus@16
  1144
        SDL20_GetDesktopDisplayMode(VideoDisplayIndex, &mode);
icculus@9
  1145
        return SDL_BITSPERPIXEL(mode.format);
icculus@9
  1146
    }
icculus@9
  1147
icculus@16
  1148
    nummodes = SDL20_GetNumDisplayModes(VideoDisplayIndex);
icculus@9
  1149
    for (i = 0; i < nummodes; ++i) {
icculus@9
  1150
        SDL_DisplayMode mode;
icculus@16
  1151
        SDL20_GetDisplayMode(VideoDisplayIndex, i, &mode);
icculus@9
  1152
        if (!mode.w || !mode.h || (width == mode.w && height == mode.h)) {
icculus@9
  1153
            if (!mode.format) {
icculus@9
  1154
                return bpp;
icculus@9
  1155
            }
icculus@9
  1156
            if (SDL_BITSPERPIXEL(mode.format) >= (Uint32) bpp) {
icculus@9
  1157
                actual_bpp = SDL_BITSPERPIXEL(mode.format);
icculus@9
  1158
            }
icculus@9
  1159
        }
icculus@9
  1160
    }
icculus@9
  1161
    return actual_bpp;
icculus@9
  1162
}
icculus@9
  1163
icculus@9
  1164
SDL_Rect **
icculus@17
  1165
SDL_ListModes(const SDL12_PixelFormat *format, Uint32 flags)
icculus@9
  1166
{
icculus@9
  1167
    int i, nmodes;
icculus@9
  1168
    SDL_Rect **modes;
icculus@9
  1169
icculus@9
  1170
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@9
  1171
        return NULL;
icculus@9
  1172
    }
icculus@9
  1173
icculus@9
  1174
    if (!(flags & SDL12_FULLSCREEN)) {
icculus@9
  1175
        return (SDL_Rect **) (-1);
icculus@9
  1176
    }
icculus@9
  1177
icculus@9
  1178
    if (!format) {
icculus@17
  1179
        format = VideoInfo.vfmt;
icculus@9
  1180
    }
icculus@9
  1181
icculus@17
  1182
    /* !!! FIXME: Memory leak */
icculus@9
  1183
    nmodes = 0;
icculus@9
  1184
    modes = NULL;
icculus@16
  1185
    for (i = 0; i < SDL20_GetNumDisplayModes(VideoDisplayIndex); ++i) {
icculus@9
  1186
        SDL_DisplayMode mode;
icculus@9
  1187
        int bpp;
icculus@9
  1188
icculus@16
  1189
        SDL20_GetDisplayMode(VideoDisplayIndex, i, &mode);
icculus@9
  1190
        if (!mode.w || !mode.h) {
icculus@9
  1191
            return (SDL_Rect **) (-1);
icculus@9
  1192
        }
icculus@9
  1193
        
icculus@9
  1194
        /* Copied from src/video/SDL_pixels.c:SDL_PixelFormatEnumToMasks */
icculus@9
  1195
        if (SDL_BYTESPERPIXEL(mode.format) <= 2) {
icculus@9
  1196
            bpp = SDL_BITSPERPIXEL(mode.format);
icculus@9
  1197
        } else {
icculus@9
  1198
            bpp = SDL_BYTESPERPIXEL(mode.format) * 8;
icculus@9
  1199
        }
icculus@9
  1200
icculus@9
  1201
        if (bpp != format->BitsPerPixel) {
icculus@9
  1202
            continue;
icculus@9
  1203
        }
icculus@9
  1204
        if (nmodes > 0 && modes[nmodes - 1]->w == mode.w
icculus@9
  1205
            && modes[nmodes - 1]->h == mode.h) {
icculus@9
  1206
            continue;
icculus@9
  1207
        }
icculus@9
  1208
icculus@17
  1209
        modes = SDL20_realloc(modes, (nmodes + 2) * sizeof(*modes));
icculus@9
  1210
        if (!modes) {
icculus@9
  1211
            return NULL;
icculus@9
  1212
        }
icculus@17
  1213
        modes[nmodes] = (SDL_Rect *) SDL20_malloc(sizeof(SDL_Rect));
icculus@9
  1214
        if (!modes[nmodes]) {
icculus@9
  1215
            return NULL;
icculus@9
  1216
        }
icculus@9
  1217
        modes[nmodes]->x = 0;
icculus@9
  1218
        modes[nmodes]->y = 0;
icculus@9
  1219
        modes[nmodes]->w = mode.w;
icculus@9
  1220
        modes[nmodes]->h = mode.h;
icculus@9
  1221
        ++nmodes;
icculus@9
  1222
    }
icculus@9
  1223
    if (modes) {
icculus@9
  1224
        modes[nmodes] = NULL;
icculus@9
  1225
    }
icculus@9
  1226
    return modes;
icculus@9
  1227
}
icculus@9
  1228
icculus@23
  1229
icculus@23
  1230
SDL12_Cursor *
icculus@23
  1231
SDL_CreateCursor(Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
icculus@23
  1232
{
icculus@23
  1233
    const size_t datasize = h * (w / 8);
icculus@23
  1234
    SDL_Cursor *cursor20 = NULL;
icculus@23
  1235
    SDL12_Cursor *retval = NULL;
icculus@23
  1236
icculus@23
  1237
    retval = (SDL12_Cursor *) SDL20_malloc(sizeof (SDL12_Cursor));
icculus@23
  1238
    if (!retval)
icculus@23
  1239
        goto outofmem;
icculus@23
  1240
icculus@23
  1241
    SDL_zerop(retval);
icculus@23
  1242
icculus@23
  1243
    retval->data = (Uint8 *) SDL20_malloc(datasize);
icculus@23
  1244
    if (!retval->data);
icculus@23
  1245
        goto outofmem;
icculus@23
  1246
icculus@23
  1247
    retval->mask = (Uint8 *) SDL20_malloc(datasize);
icculus@23
  1248
    if (!retval->mask);
icculus@23
  1249
        goto outofmem;
icculus@23
  1250
icculus@23
  1251
    cursor20 = SDL20_CreateCursor(data, mask, w, h, hot_x, hot_y);
icculus@23
  1252
    if (!cursor20)
icculus@23
  1253
        goto failed;
icculus@23
  1254
icculus@23
  1255
    retval->area.w = w;
icculus@23
  1256
    retval->area.h = h;
icculus@23
  1257
    retval->hot_x = hot_x;
icculus@23
  1258
    retval->hot_y = hot_y;
icculus@23
  1259
    retval->wm_cursor = cursor20;
icculus@23
  1260
    /* we always leave retval->save as null pointers. */
icculus@23
  1261
icculus@23
  1262
    SDL20_memcpy(retval->data, data, datasize);
icculus@23
  1263
    SDL20_memcpy(retval->mask, mask, datasize);
icculus@23
  1264
icculus@23
  1265
    return retval;
icculus@23
  1266
icculus@23
  1267
outofmem:
icculus@23
  1268
    SDL_OutOfMemory();
icculus@23
  1269
icculus@23
  1270
failed:
icculus@23
  1271
    SDL_FreeCursor(retval);
icculus@23
  1272
    return NULL;
icculus@23
  1273
}
icculus@23
  1274
icculus@23
  1275
void
icculus@23
  1276
SDL_SetCursor(SDL12_Cursor *cursor)
icculus@23
  1277
{
icculus@23
  1278
    CurrentCursor = cursor;
icculus@23
  1279
    SDL20_SetCursor(cursor ? cursor->wm_cursor : NULL);
icculus@23
  1280
}
icculus@23
  1281
icculus@23
  1282
SDL12_Cursor *
icculus@23
  1283
SDL_GetCursor(void)
icculus@23
  1284
{
icculus@23
  1285
    return CurrentCursor;
icculus@23
  1286
}
icculus@23
  1287
icculus@23
  1288
void
icculus@23
  1289
SDL_FreeCursor(SDL12_Cursor *cursor)
icculus@23
  1290
{
icculus@23
  1291
    if (retval)
icculus@23
  1292
    {
icculus@23
  1293
        if (retval->wm_cursor)
icculus@23
  1294
            SDL20_FreeCursor(cursor);
icculus@23
  1295
        SDL20_free(retval->data);
icculus@23
  1296
        SDL20_free(retval->mask);
icculus@23
  1297
        SDL20_free(retval);
icculus@23
  1298
    }
icculus@23
  1299
}
icculus@23
  1300
icculus@23
  1301
icculus@9
  1302
static void
icculus@9
  1303
GetEnvironmentWindowPosition(int w, int h, int *x, int *y)
icculus@9
  1304
{
icculus@16
  1305
    int display = VideoDisplayIndex;
icculus@9
  1306
    const char *window = SDL_getenv("SDL_VIDEO_WINDOW_POS");
icculus@9
  1307
    const char *center = SDL_getenv("SDL_VIDEO_CENTERED");
icculus@9
  1308
    if (window) {
icculus@9
  1309
        if (SDL_sscanf(window, "%d,%d", x, y) == 2) {
icculus@9
  1310
            return;
icculus@9
  1311
        }
icculus@9
  1312
        if (SDL_strcmp(window, "center") == 0) {
icculus@9
  1313
            center = window;
icculus@9
  1314
        }
icculus@9
  1315
    }
icculus@9
  1316
    if (center) {
icculus@9
  1317
        *x = SDL_WINDOWPOS_CENTERED_DISPLAY(display);
icculus@9
  1318
        *y = SDL_WINDOWPOS_CENTERED_DISPLAY(display);
icculus@9
  1319
    }
icculus@9
  1320
}
icculus@9
  1321
icculus@9
  1322
static void
icculus@9
  1323
ClearVideoSurface()
icculus@9
  1324
{
icculus@16
  1325
    if (ShadowSurface) {
icculus@17
  1326
        SDL20_FillRect(ShadowSurface, NULL,
icculus@17
  1327
            SDL20_MapRGB(ShadowSurface->format, 0, 0, 0));
icculus@9
  1328
    }
icculus@17
  1329
    SDL20_FillRect(WindowSurface, NULL, 0);
icculus@19
  1330
    SDL20_UpdateWindowSurface(VideoWindow20);
icculus@9
  1331
}
icculus@9
  1332
icculus@9
  1333
static void
icculus@19
  1334
SetupScreenSaver(int flags12)
icculus@9
  1335
{
icculus@9
  1336
    const char *env;
icculus@9
  1337
    SDL_bool allow_screensaver;
icculus@9
  1338
icculus@9
  1339
    /* Allow environment override of screensaver disable */
icculus@9
  1340
    env = SDL_getenv("SDL_VIDEO_ALLOW_SCREENSAVER");
icculus@9
  1341
    if (env) {
icculus@9
  1342
        allow_screensaver = SDL_atoi(env) ? SDL_TRUE : SDL_FALSE;
icculus@19
  1343
    } else if (flags12 & SDL12_FULLSCREEN) {
icculus@9
  1344
        allow_screensaver = SDL_FALSE;
icculus@9
  1345
    } else {
icculus@9
  1346
        allow_screensaver = SDL_TRUE;
icculus@9
  1347
    }
icculus@9
  1348
    if (allow_screensaver) {
icculus@17
  1349
        SDL20_EnableScreenSaver();
icculus@9
  1350
    } else {
icculus@17
  1351
        SDL20_DisableScreenSaver();
icculus@9
  1352
    }
icculus@9
  1353
}
icculus@9
  1354
icculus@9
  1355
static int
icculus@19
  1356
ResizeVideoMode(int width, int height, int bpp, Uint32 flags12)
icculus@9
  1357
{
icculus@9
  1358
    int w, h;
icculus@9
  1359
icculus@9
  1360
    /* We can't resize something we don't have... */
icculus@16
  1361
    if (!VideoSurface) {
icculus@9
  1362
        return -1;
icculus@9
  1363
    }
icculus@9
  1364
icculus@9
  1365
    /* We probably have to recreate the window in fullscreen mode */
icculus@19
  1366
    if (flags12 & SDL12_FULLSCREEN) {
icculus@9
  1367
        return -1;
icculus@9
  1368
    }
icculus@9
  1369
icculus@9
  1370
    /* I don't think there's any change we can gracefully make in flags */
icculus@19
  1371
    if (flags12 != VideoFlags) {
icculus@9
  1372
        return -1;
icculus@9
  1373
    }
icculus@16
  1374
    if (bpp != VideoSurface->format->BitsPerPixel) {
icculus@9
  1375
        return -1;
icculus@9
  1376
    }
icculus@9
  1377
icculus@9
  1378
    /* Resize the window */
icculus@19
  1379
    SDL20_GetWindowSize(VideoWindow20, &w, &h);
icculus@9
  1380
    if (w != width || h != height) {
icculus@19
  1381
        SDL20_SetWindowSize(VideoWindow20, width, height);
icculus@9
  1382
    }
icculus@9
  1383
icculus@9
  1384
    /* If we're in OpenGL mode, just resize the stub surface and we're done! */
icculus@19
  1385
    if (flags12 & SDL12_OPENGL) {
icculus@16
  1386
        VideoSurface->w = width;
icculus@16
  1387
        VideoSurface->h = height;
icculus@9
  1388
        return 0;
icculus@9
  1389
    }
icculus@9
  1390
icculus@19
  1391
    WindowSurface = SDL20_GetWindowSurface(VideoWindow20);
icculus@16
  1392
    if (!WindowSurface) {
icculus@9
  1393
        return -1;
icculus@9
  1394
    }
icculus@16
  1395
    if (VideoSurface->format != WindowSurface->format) {
icculus@9
  1396
        return -1;
icculus@9
  1397
    }
icculus@16
  1398
    VideoSurface->w = width;
icculus@16
  1399
    VideoSurface->h = height;
icculus@16
  1400
    VideoSurface->pixels = WindowSurface->pixels;
icculus@16
  1401
    VideoSurface->pitch = WindowSurface->pitch;
icculus@19
  1402
    SDL20_SetClipRect(VideoSurface, NULL);
icculus@9
  1403
icculus@16
  1404
    if (ShadowSurface) {
icculus@16
  1405
        ShadowSurface->w = width;
icculus@16
  1406
        ShadowSurface->h = height;
icculus@19
  1407
        ShadowSurface->pitch = SDL20_CalculatePitch(ShadowSurface);
icculus@16
  1408
        ShadowSurface->pixels =
icculus@19
  1409
            SDL20_realloc(ShadowSurface->pixels,
icculus@16
  1410
                        ShadowSurface->h * ShadowSurface->pitch);
icculus@19
  1411
        SDL20_SetClipRect(ShadowSurface, NULL);
icculus@19
  1412
        SDL20_InvalidateMap(ShadowSurface->map);
icculus@9
  1413
    } else {
icculus@16
  1414
        PublicSurface = VideoSurface;
icculus@9
  1415
    }
icculus@9
  1416
icculus@9
  1417
    ClearVideoSurface();
icculus@9
  1418
icculus@9
  1419
    return 0;
icculus@9
  1420
}
icculus@9
  1421
icculus@9
  1422
SDL_Surface *
icculus@19
  1423
SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags12)
icculus@9
  1424
{
icculus@9
  1425
    SDL_DisplayMode desktop_mode;
icculus@16
  1426
    int display = VideoDisplayIndex;
icculus@9
  1427
    int window_x = SDL_WINDOWPOS_UNDEFINED_DISPLAY(display);
icculus@9
  1428
    int window_y = SDL_WINDOWPOS_UNDEFINED_DISPLAY(display);
icculus@9
  1429
    int window_w;
icculus@9
  1430
    int window_h;
icculus@19
  1431
    Uint32 window_flags20;
icculus@19
  1432
    Uint32 surface_flags12;
icculus@19
  1433
icculus@19
  1434
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@19
  1435
        if (SDL_Init(SDL12_INIT_VIDEO | SDL12_INIT_NOPARACHUTE) < 0) {
icculus@9
  1436
            return NULL;
icculus@9
  1437
        }
icculus@9
  1438
    }
icculus@9
  1439
icculus@19
  1440
    SDL20_GetDesktopDisplayMode(display, &desktop_mode);
icculus@9
  1441
icculus@9
  1442
    if (width == 0) {
icculus@9
  1443
        width = desktop_mode.w;
icculus@9
  1444
    }
icculus@9
  1445
    if (height == 0) {
icculus@9
  1446
        height = desktop_mode.h;
icculus@9
  1447
    }
icculus@9
  1448
    if (bpp == 0) {
icculus@9
  1449
        bpp = SDL_BITSPERPIXEL(desktop_mode.format);
icculus@9
  1450
    }
icculus@9
  1451
icculus@9
  1452
    /* See if we can simply resize the existing window and surface */
icculus@19
  1453
    if (ResizeVideoMode(width, height, bpp, flags12) == 0) {
icculus@16
  1454
        return PublicSurface;
icculus@9
  1455
    }
icculus@9
  1456
icculus@9
  1457
    /* Destroy existing window */
icculus@16
  1458
    PublicSurface = NULL;
icculus@16
  1459
    if (ShadowSurface) {
icculus@16
  1460
        ShadowSurface->flags &= ~SDL_DONTFREE;
icculus@19
  1461
        SDL20_FreeSurface(ShadowSurface);
icculus@16
  1462
        ShadowSurface = NULL;
icculus@9
  1463
    }
icculus@16
  1464
    if (VideoSurface) {
icculus@16
  1465
        VideoSurface->flags &= ~SDL_DONTFREE;
icculus@19
  1466
        SDL20_FreeSurface(VideoSurface);
icculus@16
  1467
        VideoSurface = NULL;
icculus@9
  1468
    }
icculus@16
  1469
    if (VideoContext) {
icculus@9
  1470
        /* SDL_GL_MakeCurrent(0, NULL); *//* Doesn't do anything */
icculus@19
  1471
        SDL20_GL_DeleteContext(VideoContext);
icculus@16
  1472
        VideoContext = NULL;
icculus@9
  1473
    }
icculus@19
  1474
    if (VideoWindow20) {
icculus@19
  1475
        SDL20_GetWindowPosition(VideoWindow20, &window_x, &window_y);
icculus@19
  1476
        SDL20_DestroyWindow(VideoWindow20);
icculus@9
  1477
    }
icculus@9
  1478
icculus@19
  1479
    /* Create a new window */
icculus@19
  1480
    window_flags20 = SDL_WINDOW_SHOWN;
icculus@19
  1481
    if (flags12 & SDL12_FULLSCREEN) {
icculus@19
  1482
        window_flags20 |= SDL_WINDOW_FULLSCREEN;
icculus@9
  1483
    }
icculus@19
  1484
    if (flags12 & SDL12_OPENGL) {
icculus@19
  1485
        window_flags20 |= SDL_WINDOW_OPENGL;
icculus@9
  1486
    }
icculus@19
  1487
    if (flags12 & SDL12_RESIZABLE) {
icculus@19
  1488
        window_flags20 |= SDL_WINDOW_RESIZABLE;
icculus@9
  1489
    }
icculus@19
  1490
    if (flags12 & SDL12_NOFRAME) {
icculus@19
  1491
        window_flags20 |= SDL_WINDOW_BORDERLESS;
icculus@9
  1492
    }
icculus@9
  1493
    GetEnvironmentWindowPosition(width, height, &window_x, &window_y);
icculus@19
  1494
    VideoWindow20 =
icculus@19
  1495
        SDL20_CreateWindow(WindowTitle, window_x, window_y, width, height,
icculus@19
  1496
                         window_flags20);
icculus@19
  1497
    if (!VideoWindow20) {
icculus@9
  1498
        return NULL;
icculus@9
  1499
    }
icculus@19
  1500
    SDL20_SetWindowIcon(VideoWindow20, VideoIcon);
icculus@19
  1501
icculus@19
  1502
    SetupScreenSaver(flags12);
icculus@19
  1503
icculus@19
  1504
    window_flags20 = SDL_GetWindowFlags(VideoWindow20);
icculus@19
  1505
    surface_flags12 = 0;
icculus@19
  1506
    if (window_flags20 & SDL_WINDOW_FULLSCREEN) {
icculus@19
  1507
        surface_flags12 |= SDL_FULLSCREEN;
icculus@9
  1508
    }
icculus@19
  1509
    if ((window_flags & SDL_WINDOW_OPENGL) && (flags12 & SDL_OPENGL)) {
icculus@19
  1510
        surface_flags12 |= SDL_OPENGL;
icculus@9
  1511
    }
icculus@9
  1512
    if (window_flags & SDL_WINDOW_RESIZABLE) {
icculus@19
  1513
        surface_flags12 |= SDL_RESIZABLE;
icculus@9
  1514
    }
icculus@9
  1515
    if (window_flags & SDL_WINDOW_BORDERLESS) {
icculus@19
  1516
        surface_flags12 |= SDL_NOFRAME;
icculus@9
  1517
    }
icculus@9
  1518
icculus@19
  1519
    VideoFlags = flags12;
icculus@9
  1520
icculus@9
  1521
    /* If we're in OpenGL mode, just create a stub surface and we're done! */
icculus@19
  1522
    if (flags12 & SDL_OPENGL) {
icculus@19
  1523
        VideoContext = SDL_GL_CreateContext(VideoWindow20);
icculus@16
  1524
        if (!VideoContext) {
icculus@9
  1525
            return NULL;
icculus@9
  1526
        }
icculus@19
  1527
        if (SDL_GL_MakeCurrent(VideoWindow20, VideoContext) < 0) {
icculus@9
  1528
            return NULL;
icculus@9
  1529
        }
icculus@16
  1530
        VideoSurface =
icculus@9
  1531
            SDL_CreateRGBSurfaceFrom(NULL, width, height, bpp, 0, 0, 0, 0, 0);
icculus@16
  1532
        if (!VideoSurface) {
icculus@9
  1533
            return NULL;
icculus@9
  1534
        }
icculus@19
  1535
        VideoSurface->flags |= surface_flags12;
icculus@16
  1536
        PublicSurface = VideoSurface;
icculus@16
  1537
        return PublicSurface;
icculus@9
  1538
    }
icculus@9
  1539
icculus@9
  1540
    /* Create the screen surface */
icculus@19
  1541
    WindowSurface = SDL_GetWindowSurface(VideoWindow20);
icculus@16
  1542
    if (!WindowSurface) {
icculus@9
  1543
        return NULL;
icculus@9
  1544
    }
icculus@9
  1545
icculus@9
  1546
    /* Center the public surface in the window surface */
icculus@19
  1547
    SDL_GetWindowSize(VideoWindow20, &window_w, &window_h);
icculus@16
  1548
    VideoViewport.x = (window_w - width)/2;
icculus@16
  1549
    VideoViewport.y = (window_h - height)/2;
icculus@16
  1550
    VideoViewport.w = width;
icculus@16
  1551
    VideoViewport.h = height;
icculus@9
  1552
icculus@16
  1553
    VideoSurface = SDL_CreateRGBSurfaceFrom(NULL, 0, 0, 32, 0, 0, 0, 0, 0);
icculus@19
  1554
    VideoSurface->flags |= surface_flags12;
icculus@19
  1555
    VideoSurface->flags |= SDL12_DONTFREE;
icculus@16
  1556
    SDL_FreeFormat(VideoSurface->format);
icculus@16
  1557
    VideoSurface->format = WindowSurface->format;
icculus@16
  1558
    VideoSurface->format->refcount++;
icculus@16
  1559
    VideoSurface->w = width;
icculus@16
  1560
    VideoSurface->h = height;
icculus@16
  1561
    VideoSurface->pitch = WindowSurface->pitch;
icculus@16
  1562
    VideoSurface->pixels = (void *)((Uint8 *)WindowSurface->pixels +
icculus@16
  1563
        VideoViewport.y * VideoSurface->pitch +
icculus@16
  1564
        VideoViewport.x  * VideoSurface->format->BytesPerPixel);
icculus@16
  1565
    SDL_SetClipRect(VideoSurface, NULL);
icculus@9
  1566
icculus@9
  1567
    /* Create a shadow surface if necessary */
icculus@16
  1568
    if ((bpp != VideoSurface->format->BitsPerPixel)
icculus@19
  1569
        && !(flags12 & SDL12_ANYFORMAT)) {
icculus@16
  1570
        ShadowSurface =
icculus@9
  1571
            SDL_CreateRGBSurface(0, width, height, bpp, 0, 0, 0, 0);
icculus@16
  1572
        if (!ShadowSurface) {
icculus@9
  1573
            return NULL;
icculus@9
  1574
        }
icculus@19
  1575
        ShadowSurface->flags |= surface_flags12;
icculus@19
  1576
        ShadowSurface->flags |= SDL12_DONTFREE;
icculus@9
  1577
icculus@16
  1578
        /* 8-bit ShadowSurface surfaces report that they have exclusive palette */
icculus@16
  1579
        if (ShadowSurface->format->palette) {
icculus@19
  1580
            ShadowSurface->flags |= SDL12_HWPALETTE;
icculus@16
  1581
            SDL_DitherColors(ShadowSurface->format->palette->colors,
icculus@16
  1582
                             ShadowSurface->format->BitsPerPixel);
icculus@9
  1583
        }
icculus@16
  1584
        SDL_FillRect(ShadowSurface, NULL,
icculus@16
  1585
            SDL_MapRGB(ShadowSurface->format, 0, 0, 0));
icculus@9
  1586
    }
icculus@16
  1587
    PublicSurface =
icculus@16
  1588
        (ShadowSurface ? ShadowSurface : VideoSurface);
icculus@9
  1589
icculus@9
  1590
    ClearVideoSurface();
icculus@9
  1591
icculus@9
  1592
    /* We're finally done! */
icculus@16
  1593
    return PublicSurface;
icculus@9
  1594
}
icculus@9
  1595
icculus@9
  1596
SDL_Surface *
icculus@9
  1597
SDL_GetVideoSurface(void)
icculus@9
  1598
{
icculus@16
  1599
    return PublicSurface;
icculus@9
  1600
}
icculus@9
  1601
icculus@9
  1602
int
icculus@9
  1603
SDL_SetAlpha(SDL_Surface * surface, Uint32 flag, Uint8 value)
icculus@9
  1604
{
icculus@9
  1605
    if (flag & SDL_SRCALPHA) {
icculus@9
  1606
        /* According to the docs, value is ignored for alpha surfaces */
icculus@9
  1607
        if (surface->format->Amask) {
icculus@9
  1608
            value = 0xFF;
icculus@9
  1609
        }
icculus@9
  1610
        SDL_SetSurfaceAlphaMod(surface, value);
icculus@9
  1611
        SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_BLEND);
icculus@9
  1612
    } else {
icculus@9
  1613
        SDL_SetSurfaceAlphaMod(surface, 0xFF);
icculus@9
  1614
        SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_NONE);
icculus@9
  1615
    }
icculus@9
  1616
    SDL_SetSurfaceRLE(surface, (flag & SDL_RLEACCEL));
icculus@9
  1617
icculus@9
  1618
    return 0;
icculus@9
  1619
}
icculus@9
  1620
icculus@19
  1621
SDL12_Surface *
icculus@19
  1622
SDL_DisplayFormat(SDL12_Surface *surface12)
icculus@9
  1623
{
icculus@19
  1624
    SDL12_PixelFormat *format;
icculus@9
  1625
icculus@16
  1626
    if (!PublicSurface) {
icculus@19
  1627
        SDL20_SetError("No video mode has been set");
icculus@9
  1628
        return NULL;
icculus@9
  1629
    }
icculus@16
  1630
    format = PublicSurface->format;
icculus@9
  1631
icculus@9
  1632
    /* Set the flags appropriate for copying to display surface */
icculus@19
  1633
    return SDL_ConvertSurface(surface, format, SDL12_RLEACCEL);
icculus@9
  1634
}
icculus@9
  1635
icculus@19
  1636
SDL12_Surface *
icculus@19
  1637
SDL_DisplayFormatAlpha(SDL12_Surface *surface)
icculus@9
  1638
{
icculus@9
  1639
    SDL_PixelFormat *vf;
icculus@9
  1640
    SDL_PixelFormat *format;
icculus@9
  1641
    SDL_Surface *converted;
icculus@9
  1642
    /* default to ARGB8888 */
icculus@9
  1643
    Uint32 amask = 0xff000000;
icculus@9
  1644
    Uint32 rmask = 0x00ff0000;
icculus@9
  1645
    Uint32 gmask = 0x0000ff00;
icculus@9
  1646
    Uint32 bmask = 0x000000ff;
icculus@9
  1647
icculus@16
  1648
    if (!PublicSurface) {
icculus@9
  1649
        SDL_SetError("No video mode has been set");
icculus@9
  1650
        return NULL;
icculus@9
  1651
    }
icculus@16
  1652
    vf = PublicSurface->format;
icculus@9
  1653
icculus@9
  1654
    switch (vf->BytesPerPixel) {
icculus@9
  1655
    case 2:
icculus@9
  1656
        /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}.
icculus@9
  1657
           For anything else (like ARGB4444) it doesn't matter
icculus@9
  1658
           since we have no special code for it anyway */
icculus@9
  1659
        if ((vf->Rmask == 0x1f) &&
icculus@9
  1660
            (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) {
icculus@9
  1661
            rmask = 0xff;
icculus@9
  1662
            bmask = 0xff0000;
icculus@9
  1663
        }
icculus@9
  1664
        break;
icculus@9
  1665
icculus@9
  1666
    case 3:
icculus@9
  1667
    case 4:
icculus@9
  1668
        /* Keep the video format, as long as the high 8 bits are
icculus@9
  1669
           unused or alpha */
icculus@9
  1670
        if ((vf->Rmask == 0xff) && (vf->Bmask == 0xff0000)) {
icculus@9
  1671
            rmask = 0xff;
icculus@9
  1672
            bmask = 0xff0000;
icculus@9
  1673
        }
icculus@9
  1674
        break;
icculus@9
  1675
icculus@9
  1676
    default:
icculus@9
  1677
        /* We have no other optimised formats right now. When/if a new
icculus@9
  1678
           optimised alpha format is written, add the converter here */
icculus@9
  1679
        break;
icculus@9
  1680
    }
icculus@9
  1681
    format = SDL_AllocFormat(SDL_MasksToPixelFormatEnum(32, rmask,
icculus@9
  1682
                                                            gmask,
icculus@9
  1683
                                                            bmask,
icculus@9
  1684
                                                            amask));
icculus@9
  1685
    if (!format) {
icculus@9
  1686
        return NULL;
icculus@9
  1687
    }
icculus@9
  1688
    converted = SDL_ConvertSurface(surface, format, SDL_RLEACCEL);
icculus@9
  1689
    SDL_FreeFormat(format);
icculus@9
  1690
    return converted;
icculus@9
  1691
}
icculus@9
  1692
icculus@9
  1693
int
icculus@9
  1694
SDL_Flip(SDL_Surface * screen)
icculus@9
  1695
{
icculus@9
  1696
    SDL_UpdateRect(screen, 0, 0, 0, 0);
icculus@9
  1697
    return 0;
icculus@9
  1698
}
icculus@9
  1699
icculus@9
  1700
void
icculus@9
  1701
SDL_UpdateRect(SDL_Surface * screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h)
icculus@9
  1702
{
icculus@9
  1703
    if (screen) {
icculus@9
  1704
        SDL_Rect rect;
icculus@9
  1705
icculus@9
  1706
        /* Fill the rectangle */
icculus@9
  1707
        rect.x = (int) x;
icculus@9
  1708
        rect.y = (int) y;
icculus@9
  1709
        rect.w = (int) (w ? w : screen->w);
icculus@9
  1710
        rect.h = (int) (h ? h : screen->h);
icculus@9
  1711
        SDL_UpdateRects(screen, 1, &rect);
icculus@9
  1712
    }
icculus@9
  1713
}
icculus@9
  1714
icculus@9
  1715
void
icculus@9
  1716
SDL_UpdateRects(SDL_Surface * screen, int numrects, SDL_Rect * rects)
icculus@9
  1717
{
icculus@9
  1718
    int i;
icculus@9
  1719
icculus@16
  1720
    if (screen == ShadowSurface) {
icculus@9
  1721
        for (i = 0; i < numrects; ++i) {
icculus@16
  1722
            SDL_BlitSurface(ShadowSurface, &rects[i], VideoSurface,
icculus@9
  1723
                            &rects[i]);
icculus@9
  1724
        }
icculus@9
  1725
icculus@9
  1726
        /* Fall through to video surface update */
icculus@16
  1727
        screen = VideoSurface;
icculus@9
  1728
    }
icculus@16
  1729
    if (screen == VideoSurface) {
icculus@16
  1730
        if (VideoViewport.x || VideoViewport.y) {
icculus@9
  1731
            SDL_Rect *stackrects = SDL_stack_alloc(SDL_Rect, numrects);
icculus@9
  1732
            SDL_Rect *stackrect;
icculus@9
  1733
            const SDL_Rect *rect;
icculus@9
  1734
            
icculus@9
  1735
            /* Offset all the rectangles before updating */
icculus@9
  1736
            for (i = 0; i < numrects; ++i) {
icculus@9
  1737
                rect = &rects[i];
icculus@9
  1738
                stackrect = &stackrects[i];
icculus@16
  1739
                stackrect->x = VideoViewport.x + rect->x;
icculus@16
  1740
                stackrect->y = VideoViewport.y + rect->y;
icculus@9
  1741
                stackrect->w = rect->w;
icculus@9
  1742
                stackrect->h = rect->h;
icculus@9
  1743
            }
icculus@19
  1744
            SDL_UpdateWindowSurfaceRects(VideoWindow20, stackrects, numrects);
icculus@9
  1745
            SDL_stack_free(stackrects);
icculus@9
  1746
        } else {
icculus@19
  1747
            SDL_UpdateWindowSurfaceRects(VideoWindow20, rects, numrects);
icculus@9
  1748
        }
icculus@9
  1749
    }
icculus@9
  1750
}
icculus@9
  1751
icculus@9
  1752
void
icculus@9
  1753
SDL_WM_SetCaption(const char *title, const char *icon)
icculus@9
  1754
{
icculus@16
  1755
    if (WindowTitle) {
icculus@16
  1756
        SDL_free(WindowTitle);
icculus@9
  1757
    }
icculus@16
  1758
    if (WindowIconTitle) {
icculus@16
  1759
        SDL_free(WindowIconTitle);
icculus@9
  1760
    }
icculus@16
  1761
    WindowTitle = title ? SDL_strdup(title) : NULL;
icculus@16
  1762
    WindowIconTitle = icon ? SDL_strdup(icon) : NULL;
icculus@19
  1763
    SDL_SetWindowTitle(VideoWindow20, WindowTitle);
icculus@9
  1764
}
icculus@9
  1765
icculus@9
  1766
void
icculus@9
  1767
SDL_WM_GetCaption(const char **title, const char **icon)
icculus@9
  1768
{
icculus@9
  1769
    if (title) {
icculus@16
  1770
        *title = WindowTitle;
icculus@9
  1771
    }
icculus@9
  1772
    if (icon) {
icculus@16
  1773
        *icon = WindowIconTitle;
icculus@9
  1774
    }
icculus@9
  1775
}
icculus@9
  1776
icculus@9
  1777
void
icculus@9
  1778
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
icculus@9
  1779
{
icculus@9
  1780
    // !!! FIXME: free previous icon?
icculus@16
  1781
    VideoIcon = icon;
icculus@16
  1782
    ++VideoIcon->refcount;
icculus@9
  1783
}
icculus@9
  1784
icculus@9
  1785
int
icculus@9
  1786
SDL_WM_IconifyWindow(void)
icculus@9
  1787
{
icculus@19
  1788
    SDL_MinimizeWindow(VideoWindow20);
icculus@9
  1789
    return 0;
icculus@9
  1790
}
icculus@9
  1791
icculus@9
  1792
int
icculus@9
  1793
SDL_WM_ToggleFullScreen(SDL_Surface * surface)
icculus@9
  1794
{
icculus@9
  1795
    int length;
icculus@9
  1796
    void *pixels;
icculus@9
  1797
    Uint8 *src, *dst;
icculus@9
  1798
    int row;
icculus@9
  1799
    int window_w;
icculus@9
  1800
    int window_h;
icculus@9
  1801
icculus@16
  1802
    if (!PublicSurface) {
icculus@9
  1803
        SDL_SetError("SDL_SetVideoMode() hasn't been called");
icculus@9
  1804
        return 0;
icculus@9
  1805
    }
icculus@9
  1806
icculus@9
  1807
    /* Copy the old bits out */
icculus@16
  1808
    length = PublicSurface->w * PublicSurface->format->BytesPerPixel;
icculus@16
  1809
    pixels = SDL_malloc(PublicSurface->h * length);
icculus@16
  1810
    if (pixels && PublicSurface->pixels) {
icculus@16
  1811
        src = (Uint8*)PublicSurface->pixels;
icculus@9
  1812
        dst = (Uint8*)pixels;
icculus@16
  1813
        for (row = 0; row < PublicSurface->h; ++row) {
icculus@9
  1814
            SDL_memcpy(dst, src, length);
icculus@16
  1815
            src += PublicSurface->pitch;
icculus@9
  1816
            dst += length;
icculus@9
  1817
        }
icculus@9
  1818
    }
icculus@9
  1819
icculus@9
  1820
    /* Do the physical mode switch */
icculus@19
  1821
    if (SDL_GetWindowFlags(VideoWindow20) & SDL_WINDOW_FULLSCREEN) {
icculus@19
  1822
        if (SDL_SetWindowFullscreen(VideoWindow20, 0) < 0) {
icculus@9
  1823
            return 0;
icculus@9
  1824
        }
icculus@16
  1825
        PublicSurface->flags &= ~SDL_FULLSCREEN;
icculus@9
  1826
    } else {
icculus@19
  1827
        if (SDL_SetWindowFullscreen(VideoWindow20, 1) < 0) {
icculus@9
  1828
            return 0;
icculus@9
  1829
        }
icculus@16
  1830
        PublicSurface->flags |= SDL_FULLSCREEN;
icculus@9
  1831
    }
icculus@9
  1832
icculus@9
  1833
    /* Recreate the screen surface */
icculus@19
  1834
    WindowSurface = SDL_GetWindowSurface(VideoWindow20);
icculus@16
  1835
    if (!WindowSurface) {
icculus@9
  1836
        /* We're totally hosed... */
icculus@9
  1837
        return 0;
icculus@9
  1838
    }
icculus@9
  1839
icculus@9
  1840
    /* Center the public surface in the window surface */
icculus@19
  1841
    SDL_GetWindowSize(VideoWindow20, &window_w, &window_h);
icculus@16
  1842
    VideoViewport.x = (window_w - VideoSurface->w)/2;
icculus@16
  1843
    VideoViewport.y = (window_h - VideoSurface->h)/2;
icculus@16
  1844
    VideoViewport.w = VideoSurface->w;
icculus@16
  1845
    VideoViewport.h = VideoSurface->h;
icculus@9
  1846
icculus@9
  1847
    /* Do some shuffling behind the application's back if format changes */
icculus@16
  1848
    if (VideoSurface->format->format != WindowSurface->format->format) {
icculus@16
  1849
        if (ShadowSurface) {
icculus@16
  1850
            if (ShadowSurface->format->format == WindowSurface->format->format) {
icculus@9
  1851
                /* Whee!  We don't need a shadow surface anymore! */
icculus@16
  1852
                VideoSurface->flags &= ~SDL_DONTFREE;
icculus@16
  1853
                SDL_FreeSurface(VideoSurface);
icculus@16
  1854
                SDL_free(ShadowSurface->pixels);
icculus@16
  1855
                VideoSurface = ShadowSurface;
icculus@16
  1856
                VideoSurface->flags |= SDL_PREALLOC;
icculus@16
  1857
                ShadowSurface = NULL;
icculus@9
  1858
            } else {
icculus@9
  1859
                /* No problem, just change the video surface format */
icculus@16
  1860
                SDL_FreeFormat(VideoSurface->format);
icculus@16
  1861
                VideoSurface->format = WindowSurface->format;
icculus@16
  1862
                VideoSurface->format->refcount++;
icculus@16
  1863
                SDL_InvalidateMap(ShadowSurface->map);
icculus@9
  1864
            }
icculus@9
  1865
        } else {
icculus@9
  1866
            /* We can make the video surface the shadow surface */
icculus@16
  1867
            ShadowSurface = VideoSurface;
icculus@16
  1868
            ShadowSurface->pitch = SDL_CalculatePitch(ShadowSurface);
icculus@16
  1869
            ShadowSurface->pixels = SDL_malloc(ShadowSurface->h * ShadowSurface->pitch);
icculus@16
  1870
            if (!ShadowSurface->pixels) {
icculus@9
  1871
                /* Uh oh, we're hosed */
icculus@16
  1872
                ShadowSurface = NULL;
icculus@9
  1873
                return 0;
icculus@9
  1874
            }
icculus@16
  1875
            ShadowSurface->flags &= ~SDL_PREALLOC;
icculus@9
  1876
icculus@16
  1877
            VideoSurface = SDL_CreateRGBSurfaceFrom(NULL, 0, 0, 32, 0, 0, 0, 0, 0);
icculus@16
  1878
            VideoSurface->flags = ShadowSurface->flags;
icculus@16
  1879
            VideoSurface->flags |= SDL_PREALLOC;
icculus@16
  1880
            SDL_FreeFormat(VideoSurface->format);
icculus@16
  1881
            VideoSurface->format = WindowSurface->format;
icculus@16
  1882
            VideoSurface->format->refcount++;
icculus@16
  1883
            VideoSurface->w = ShadowSurface->w;
icculus@16
  1884
            VideoSurface->h = ShadowSurface->h;
icculus@9
  1885
        }
icculus@9
  1886
    }
icculus@9
  1887
icculus@9
  1888
    /* Update the video surface */
icculus@16
  1889
    VideoSurface->pitch = WindowSurface->pitch;
icculus@16
  1890
    VideoSurface->pixels = (void *)((Uint8 *)WindowSurface->pixels +
icculus@16
  1891
        VideoViewport.y * VideoSurface->pitch +
icculus@16
  1892
        VideoViewport.x  * VideoSurface->format->BytesPerPixel);
icculus@16
  1893
    SDL_SetClipRect(VideoSurface, NULL);
icculus@9
  1894
icculus@9
  1895
    /* Copy the old bits back */
icculus@9
  1896
    if (pixels) {
icculus@9
  1897
        src = (Uint8*)pixels;
icculus@16
  1898
        dst = (Uint8*)PublicSurface->pixels;
icculus@16
  1899
        for (row = 0; row < PublicSurface->h; ++row) {
icculus@9
  1900
            SDL_memcpy(dst, src, length);
icculus@9
  1901
            src += length;
icculus@16
  1902
            dst += PublicSurface->pitch;
icculus@9
  1903
        }
icculus@16
  1904
        SDL_Flip(PublicSurface);
icculus@9
  1905
        SDL_free(pixels);
icculus@9
  1906
    }
icculus@9
  1907
icculus@9
  1908
    /* We're done! */
icculus@9
  1909
    return 1;
icculus@9
  1910
}
icculus@9
  1911
icculus@9
  1912
SDL_GrabMode
icculus@9
  1913
SDL_WM_GrabInput(SDL_GrabMode mode)
icculus@9
  1914
{
icculus@9
  1915
    if (mode != SDL_GRAB_QUERY) {
icculus@19
  1916
        SDL_SetWindowGrab(VideoWindow20, mode);
icculus@9
  1917
    }
icculus@19
  1918
    return (SDL_GrabMode) SDL_GetWindowGrab(VideoWindow20);
icculus@9
  1919
}
icculus@9
  1920
icculus@9
  1921
void
icculus@9
  1922
SDL_WarpMouse(Uint16 x, Uint16 y)
icculus@9
  1923
{
icculus@19
  1924
    SDL_WarpMouseInWindow(VideoWindow20, x, y);
icculus@9
  1925
}
icculus@9
  1926
icculus@9
  1927
Uint8
icculus@9
  1928
SDL_GetAppState(void)
icculus@9
  1929
{
icculus@9
  1930
    Uint8 state = 0;
icculus@9
  1931
    Uint32 flags = 0;
icculus@9
  1932
icculus@19
  1933
    flags = SDL_GetWindowFlags(VideoWindow20);
icculus@9
  1934
    if ((flags & SDL_WINDOW_SHOWN) && !(flags & SDL_WINDOW_MINIMIZED)) {
icculus@9
  1935
        state |= SDL_APPACTIVE;
icculus@9
  1936
    }
icculus@9
  1937
    if (flags & SDL_WINDOW_INPUT_FOCUS) {
icculus@9
  1938
        state |= SDL_APPINPUTFOCUS;
icculus@9
  1939
    }
icculus@9
  1940
    if (flags & SDL_WINDOW_MOUSE_FOCUS) {
icculus@9
  1941
        state |= SDL_APPMOUSEFOCUS;
icculus@9
  1942
    }
icculus@9
  1943
    return state;
icculus@9
  1944
}
icculus@9
  1945
icculus@9
  1946
const SDL_version *
icculus@9
  1947
SDL_Linked_Version(void)
icculus@9
  1948
{
icculus@9
  1949
    static SDL_version version;
icculus@9
  1950
    SDL_VERSION(&version);
icculus@9
  1951
    return &version;
icculus@9
  1952
}
icculus@9
  1953
icculus@9
  1954
int
icculus@9
  1955
SDL_SetPalette(SDL_Surface * surface, int flags, const SDL_Color * colors,
icculus@9
  1956
               int firstcolor, int ncolors)
icculus@9
  1957
{
icculus@9
  1958
    return SDL_SetColors(surface, colors, firstcolor, ncolors);
icculus@9
  1959
}
icculus@9
  1960
icculus@9
  1961
int
icculus@9
  1962
SDL_SetColors(SDL_Surface * surface, const SDL_Color * colors, int firstcolor,
icculus@9
  1963
              int ncolors)
icculus@9
  1964
{
icculus@9
  1965
    if (SDL_SetPaletteColors
icculus@9
  1966
        (surface->format->palette, colors, firstcolor, ncolors) == 0) {
icculus@9
  1967
        return 1;
icculus@9
  1968
    } else {
icculus@9
  1969
        return 0;
icculus@9
  1970
    }
icculus@9
  1971
}
icculus@9
  1972
icculus@9
  1973
int
icculus@9
  1974
SDL_GetWMInfo(SDL_SysWMinfo * info)
icculus@9
  1975
{
icculus@19
  1976
    return SDL_GetWindowWMInfo(VideoWindow20, info);
icculus@9
  1977
}
icculus@9
  1978
icculus@9
  1979
#if 0
icculus@9
  1980
void
icculus@9
  1981
SDL_MoveCursor(int x, int y)
icculus@9
  1982
{
icculus@9
  1983
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  1984
icculus@9
  1985
    /* Erase and update the current mouse position */
icculus@9
  1986
    if (SHOULD_DRAWCURSOR(SDL_cursorstate)) {
icculus@9
  1987
        /* Erase and redraw mouse cursor in new position */
icculus@9
  1988
        SDL_LockCursor();
icculus@16
  1989
        SDL_EraseCursor(VideoSurface);
icculus@9
  1990
        SDL_cursor->area.x = (x - SDL_cursor->hot_x);
icculus@9
  1991
        SDL_cursor->area.y = (y - SDL_cursor->hot_y);
icculus@16
  1992
        SDL_DrawCursor(VideoSurface);
icculus@9
  1993
        SDL_UnlockCursor();
icculus@9
  1994
    } else if (_this->MoveWMCursor) {
icculus@9
  1995
        _this->MoveWMCursor(_this, x, y);
icculus@9
  1996
    }
icculus@9
  1997
}
icculus@9
  1998
icculus@9
  1999
/* Keep track of the current cursor colors */
icculus@9
  2000
static int palette_changed = 1;
icculus@9
  2001
static Uint8 pixels8[2];
icculus@9
  2002
icculus@9
  2003
void
icculus@9
  2004
SDL_CursorPaletteChanged(void)
icculus@9
  2005
{
icculus@9
  2006
    palette_changed = 1;
icculus@9
  2007
}
icculus@9
  2008
icculus@9
  2009
void
icculus@9
  2010
SDL_MouseRect(SDL_Rect * area)
icculus@9
  2011
{
icculus@9
  2012
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2013
    int clip_diff;
icculus@9
  2014
icculus@9
  2015
    *area = SDL_cursor->area;
icculus@9
  2016
    if (area->x < 0) {
icculus@9
  2017
        area->w += area->x;
icculus@9
  2018
        area->x = 0;
icculus@9
  2019
    }
icculus@9
  2020
    if (area->y < 0) {
icculus@9
  2021
        area->h += area->y;
icculus@9
  2022
        area->y = 0;
icculus@9
  2023
    }
icculus@16
  2024
    clip_diff = (area->x + area->w) - VideoSurface->w;
icculus@9
  2025
    if (clip_diff > 0) {
icculus@9
  2026
        area->w = area->w < clip_diff ? 0 : area->w - clip_diff;
icculus@9
  2027
    }
icculus@16
  2028
    clip_diff = (area->y + area->h) - VideoSurface->h;
icculus@9
  2029
    if (clip_diff > 0) {
icculus@9
  2030
        area->h = area->h < clip_diff ? 0 : area->h - clip_diff;
icculus@9
  2031
    }
icculus@9
  2032
}
icculus@9
  2033
icculus@9
  2034
static void
icculus@9
  2035
SDL_DrawCursorFast(SDL_Surface * screen, SDL_Rect * area)
icculus@9
  2036
{
icculus@9
  2037
    const Uint32 pixels[2] = { 0xFFFFFFFF, 0x00000000 };
icculus@9
  2038
    int i, w, h;
icculus@9
  2039
    Uint8 *data, datab;
icculus@9
  2040
    Uint8 *mask, maskb;
icculus@9
  2041
icculus@9
  2042
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
icculus@9
  2043
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
icculus@9
  2044
    switch (screen->format->BytesPerPixel) {
icculus@9
  2045
icculus@9
  2046
    case 1:
icculus@9
  2047
        {
icculus@9
  2048
            Uint8 *dst;
icculus@9
  2049
            int dstskip;
icculus@9
  2050
icculus@9
  2051
            if (palette_changed) {
icculus@9
  2052
                pixels8[0] =
icculus@9
  2053
                    (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
icculus@9
  2054
                pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
icculus@9
  2055
                palette_changed = 0;
icculus@9
  2056
            }
icculus@9
  2057
            dst = (Uint8 *) screen->pixels +
icculus@9
  2058
                (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  2059
                SDL_cursor->area.x;
icculus@9
  2060
            dstskip = screen->pitch - area->w;
icculus@9
  2061
icculus@9
  2062
            for (h = area->h; h; h--) {
icculus@9
  2063
                for (w = area->w / 8; w; w--) {
icculus@9
  2064
                    maskb = *mask++;
icculus@9
  2065
                    datab = *data++;
icculus@9
  2066
                    for (i = 0; i < 8; ++i) {
icculus@9
  2067
                        if (maskb & 0x80) {
icculus@9
  2068
                            *dst = pixels8[datab >> 7];
icculus@9
  2069
                        }
icculus@9
  2070
                        maskb <<= 1;
icculus@9
  2071
                        datab <<= 1;
icculus@9
  2072
                        dst++;
icculus@9
  2073
                    }
icculus@9
  2074
                }
icculus@9
  2075
                dst += dstskip;
icculus@9
  2076
            }
icculus@9
  2077
        }
icculus@9
  2078
        break;
icculus@9
  2079
icculus@9
  2080
    case 2:
icculus@9
  2081
        {
icculus@9
  2082
            Uint16 *dst;
icculus@9
  2083
            int dstskip;
icculus@9
  2084
icculus@9
  2085
            dst = (Uint16 *) screen->pixels +
icculus@9
  2086
                (SDL_cursor->area.y + area->y) * screen->pitch / 2 +
icculus@9
  2087
                SDL_cursor->area.x;
icculus@9
  2088
            dstskip = (screen->pitch / 2) - area->w;
icculus@9
  2089
icculus@9
  2090
            for (h = area->h; h; h--) {
icculus@9
  2091
                for (w = area->w / 8; w; w--) {
icculus@9
  2092
                    maskb = *mask++;
icculus@9
  2093
                    datab = *data++;
icculus@9
  2094
                    for (i = 0; i < 8; ++i) {
icculus@9
  2095
                        if (maskb & 0x80) {
icculus@9
  2096
                            *dst = (Uint16) pixels[datab >> 7];
icculus@9
  2097
                        }
icculus@9
  2098
                        maskb <<= 1;
icculus@9
  2099
                        datab <<= 1;
icculus@9
  2100
                        dst++;
icculus@9
  2101
                    }
icculus@9
  2102
                }
icculus@9
  2103
                dst += dstskip;
icculus@9
  2104
            }
icculus@9
  2105
        }
icculus@9
  2106
        break;
icculus@9
  2107
icculus@9
  2108
    case 3:
icculus@9
  2109
        {
icculus@9
  2110
            Uint8 *dst;
icculus@9
  2111
            int dstskip;
icculus@9
  2112
icculus@9
  2113
            dst = (Uint8 *) screen->pixels +
icculus@9
  2114
                (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  2115
                SDL_cursor->area.x * 3;
icculus@9
  2116
            dstskip = screen->pitch - area->w * 3;
icculus@9
  2117
icculus@9
  2118
            for (h = area->h; h; h--) {
icculus@9
  2119
                for (w = area->w / 8; w; w--) {
icculus@9
  2120
                    maskb = *mask++;
icculus@9
  2121
                    datab = *data++;
icculus@9
  2122
                    for (i = 0; i < 8; ++i) {
icculus@9
  2123
                        if (maskb & 0x80) {
icculus@9
  2124
                            SDL_memset(dst, pixels[datab >> 7], 3);
icculus@9
  2125
                        }
icculus@9
  2126
                        maskb <<= 1;
icculus@9
  2127
                        datab <<= 1;
icculus@9
  2128
                        dst += 3;
icculus@9
  2129
                    }
icculus@9
  2130
                }
icculus@9
  2131
                dst += dstskip;
icculus@9
  2132
            }
icculus@9
  2133
        }
icculus@9
  2134
        break;
icculus@9
  2135
icculus@9
  2136
    case 4:
icculus@9
  2137
        {
icculus@9
  2138
            Uint32 *dst;
icculus@9
  2139
            int dstskip;
icculus@9
  2140
icculus@9
  2141
            dst = (Uint32 *) screen->pixels +
icculus@9
  2142
                (SDL_cursor->area.y + area->y) * screen->pitch / 4 +
icculus@9
  2143
                SDL_cursor->area.x;
icculus@9
  2144
            dstskip = (screen->pitch / 4) - area->w;
icculus@9
  2145
icculus@9
  2146
            for (h = area->h; h; h--) {
icculus@9
  2147
                for (w = area->w / 8; w; w--) {
icculus@9
  2148
                    maskb = *mask++;
icculus@9
  2149
                    datab = *data++;
icculus@9
  2150
                    for (i = 0; i < 8; ++i) {
icculus@9
  2151
                        if (maskb & 0x80) {
icculus@9
  2152
                            *dst = pixels[datab >> 7];
icculus@9
  2153
                        }
icculus@9
  2154
                        maskb <<= 1;
icculus@9
  2155
                        datab <<= 1;
icculus@9
  2156
                        dst++;
icculus@9
  2157
                    }
icculus@9
  2158
                }
icculus@9
  2159
                dst += dstskip;
icculus@9
  2160
            }
icculus@9
  2161
        }
icculus@9
  2162
        break;
icculus@9
  2163
    }
icculus@9
  2164
}
icculus@9
  2165
icculus@9
  2166
static void
icculus@9
  2167
SDL_DrawCursorSlow(SDL_Surface * screen, SDL_Rect * area)
icculus@9
  2168
{
icculus@9
  2169
    const Uint32 pixels[2] = { 0xFFFFFF, 0x000000 };
icculus@9
  2170
    int h;
icculus@9
  2171
    int x, minx, maxx;
icculus@9
  2172
    Uint8 *data, datab = 0;
icculus@9
  2173
    Uint8 *mask, maskb = 0;
icculus@9
  2174
    Uint8 *dst;
icculus@9
  2175
    int dstbpp, dstskip;
icculus@9
  2176
icculus@9
  2177
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
icculus@9
  2178
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
icculus@9
  2179
    dstbpp = screen->format->BytesPerPixel;
icculus@9
  2180
    dst = (Uint8 *) screen->pixels +
icculus@9
  2181
        (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  2182
        SDL_cursor->area.x * dstbpp;
icculus@9
  2183
    dstskip = screen->pitch - SDL_cursor->area.w * dstbpp;
icculus@9
  2184
icculus@9
  2185
    minx = area->x;
icculus@9
  2186
    maxx = area->x + area->w;
icculus@9
  2187
    if (screen->format->BytesPerPixel == 1) {
icculus@9
  2188
        if (palette_changed) {
icculus@9
  2189
            pixels8[0] = (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
icculus@9
  2190
            pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
icculus@9
  2191
            palette_changed = 0;
icculus@9
  2192
        }
icculus@9
  2193
        for (h = area->h; h; h--) {
icculus@9
  2194
            for (x = 0; x < SDL_cursor->area.w; ++x) {
icculus@9
  2195
                if ((x % 8) == 0) {
icculus@9
  2196
                    maskb = *mask++;
icculus@9
  2197
                    datab = *data++;
icculus@9
  2198
                }
icculus@9
  2199
                if ((x >= minx) && (x < maxx)) {
icculus@9
  2200
                    if (maskb & 0x80) {
icculus@9
  2201
                        SDL_memset(dst, pixels8[datab >> 7], dstbpp);
icculus@9
  2202
                    }
icculus@9
  2203
                }
icculus@9
  2204
                maskb <<= 1;
icculus@9
  2205
                datab <<= 1;
icculus@9
  2206
                dst += dstbpp;
icculus@9
  2207
            }
icculus@9
  2208
            dst += dstskip;
icculus@9
  2209
        }
icculus@9
  2210
    } else {
icculus@9
  2211
        for (h = area->h; h; h--) {
icculus@9
  2212
            for (x = 0; x < SDL_cursor->area.w; ++x) {
icculus@9
  2213
                if ((x % 8) == 0) {
icculus@9
  2214
                    maskb = *mask++;
icculus@9
  2215
                    datab = *data++;
icculus@9
  2216
                }
icculus@9
  2217
                if ((x >= minx) && (x < maxx)) {
icculus@9
  2218
                    if (maskb & 0x80) {
icculus@9
  2219
                        SDL_memset(dst, pixels[datab >> 7], dstbpp);
icculus@9
  2220
                    }
icculus@9
  2221
                }
icculus@9
  2222
                maskb <<= 1;
icculus@9
  2223
                datab <<= 1;
icculus@9
  2224
                dst += dstbpp;
icculus@9
  2225
            }
icculus@9
  2226
            dst += dstskip;
icculus@9
  2227
        }
icculus@9
  2228
    }
icculus@9
  2229
}
icculus@9
  2230
icculus@9
  2231
/* This handles the ugly work of converting the saved cursor background from
icculus@9
  2232
   the pixel format of the shadow surface to that of the video surface.
icculus@9
  2233
   This is only necessary when blitting from a shadow surface of a different
icculus@9
  2234
   pixel format than the video surface, and using a software rendered cursor.
icculus@9
  2235
*/
icculus@9
  2236
static void
icculus@9
  2237
SDL_ConvertCursorSave(SDL_Surface * screen, int w, int h)
icculus@9
  2238
{
icculus@9
  2239
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2240
    SDL_BlitInfo info;
icculus@9
  2241
    SDL_loblit RunBlit;
icculus@9
  2242
icculus@9
  2243
    /* Make sure we can steal the blit mapping */
icculus@16
  2244
    if (screen->map->dst != VideoSurface) {
icculus@9
  2245
        return;
icculus@9
  2246
    }
icculus@9
  2247
icculus@9
  2248
    /* Set up the blit information */
icculus@9
  2249
    info.s_pixels = SDL_cursor->save[1];
icculus@9
  2250
    info.s_width = w;
icculus@9
  2251
    info.s_height = h;
icculus@9
  2252
    info.s_skip = 0;
icculus@9
  2253
    info.d_pixels = SDL_cursor->save[0];
icculus@9
  2254
    info.d_width = w;
icculus@9
  2255
    info.d_height = h;
icculus@9
  2256
    info.d_skip = 0;
icculus@9
  2257
    info.aux_data = screen->map->sw_data->aux_data;
icculus@9
  2258
    info.src = screen->format;
icculus@9
  2259
    info.table = screen->map->table;
icculus@16
  2260
    info.dst = VideoSurface->format;
icculus@9
  2261
    RunBlit = screen->map->sw_data->blit;
icculus@9
  2262
icculus@9
  2263
    /* Run the actual software blit */
icculus@9
  2264
    RunBlit(&info);
icculus@9
  2265
}
icculus@9
  2266
icculus@9
  2267
void
icculus@9
  2268
SDL_DrawCursorNoLock(SDL_Surface * screen)
icculus@9
  2269
{
icculus@9
  2270
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2271
    SDL_Rect area;
icculus@9
  2272
icculus@9
  2273
    /* Get the mouse rectangle, clipped to the screen */
icculus@9
  2274
    SDL_MouseRect(&area);
icculus@9
  2275
    if ((area.w == 0) || (area.h == 0)) {
icculus@9
  2276
        return;
icculus@9
  2277
    }
icculus@9
  2278
icculus@9
  2279
    /* Copy mouse background */
icculus@9
  2280
    {
icculus@9
  2281
        int w, h, screenbpp;
icculus@9
  2282
        Uint8 *src, *dst;
icculus@9
  2283
icculus@9
  2284
        /* Set up the copy pointers */
icculus@9
  2285
        screenbpp = screen->format->BytesPerPixel;
icculus@16
  2286
        if ((screen == VideoSurface) ||
icculus@16
  2287
            FORMAT_EQUAL(screen->format, VideoSurface->format)) {
icculus@9
  2288
            dst = SDL_cursor->save[0];
icculus@9
  2289
        } else {
icculus@9
  2290
            dst = SDL_cursor->save[1];
icculus@9
  2291
        }
icculus@9
  2292
        src = (Uint8 *) screen->pixels + area.y * screen->pitch +
icculus@9
  2293
            area.x * screenbpp;
icculus@9
  2294
icculus@9
  2295
        /* Perform the copy */
icculus@9
  2296
        w = area.w * screenbpp;
icculus@9
  2297
        h = area.h;
icculus@9
  2298
        while (h--) {
icculus@9
  2299
            SDL_memcpy(dst, src, w);
icculus@9
  2300
            dst += w;
icculus@9
  2301
            src += screen->pitch;
icculus@9
  2302
        }
icculus@9
  2303
    }
icculus@9
  2304
icculus@9
  2305
    /* Draw the mouse cursor */
icculus@9
  2306
    area.x -= SDL_cursor->area.x;
icculus@9
  2307
    area.y -= SDL_cursor->area.y;
icculus@9
  2308
    if ((area.x == 0) && (area.w == SDL_cursor->area.w)) {
icculus@9
  2309
        SDL_DrawCursorFast(screen, &area);
icculus@9
  2310
    } else {
icculus@9
  2311
        SDL_DrawCursorSlow(screen, &area);
icculus@9
  2312
    }
icculus@9
  2313
}
icculus@9
  2314
icculus@9
  2315
void
icculus@9
  2316
SDL_DrawCursor(SDL_Surface * screen)
icculus@9
  2317
{
icculus@9
  2318
    /* Lock the screen if necessary */
icculus@9
  2319
    if (screen == NULL) {
icculus@9
  2320
        return;
icculus@9
  2321
    }
icculus@9
  2322
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2323
        if (SDL_LockSurface(screen) < 0) {
icculus@9
  2324
            return;
icculus@9
  2325
        }
icculus@9
  2326
    }
icculus@9
  2327
icculus@9
  2328
    SDL_DrawCursorNoLock(screen);
icculus@9
  2329
icculus@9
  2330
    /* Unlock the screen and update if necessary */
icculus@9
  2331
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2332
        SDL_UnlockSurface(screen);
icculus@9
  2333
    }
icculus@9
  2334
    if (screen->flags & SDL_SCREEN_SURFACE) {
icculus@9
  2335
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2336
        SDL_Window *window;
icculus@9
  2337
        SDL_Rect area;
icculus@9
  2338
icculus@9
  2339
        window = SDL_GetWindowFromSurface(screen);
icculus@9
  2340
        if (!window) {
icculus@9
  2341
            return;
icculus@9
  2342
        }
icculus@9
  2343
icculus@9
  2344
        SDL_MouseRect(&area);
icculus@9
  2345
icculus@9
  2346
        if (_this->UpdateWindowSurface) {
icculus@9
  2347
            _this->UpdateWindowSurface(_this, window, 1, &area);
icculus@9
  2348
        }
icculus@9
  2349
    }
icculus@9
  2350
}
icculus@9
  2351
icculus@9
  2352
void
icculus@9
  2353
SDL_EraseCursorNoLock(SDL_Surface * screen)
icculus@9
  2354
{
icculus@9
  2355
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2356
    SDL_Window *window;
icculus@9
  2357
    SDL_Rect area;
icculus@9
  2358
icculus@9
  2359
    /* Get the window associated with the surface */
icculus@9
  2360
    window = SDL_GetWindowFromSurface(screen);
icculus@9
  2361
    if (!window || !window->surface) {
icculus@9
  2362
        return;
icculus@9
  2363
    }
icculus@9
  2364
icculus@9
  2365
    /* Get the mouse rectangle, clipped to the screen */
icculus@9
  2366
    SDL_MouseRect(&area);
icculus@9
  2367
    if ((area.w == 0) || (area.h == 0)) {
icculus@9
  2368
        return;
icculus@9
  2369
    }
icculus@9
  2370
icculus@9
  2371
    /* Copy mouse background */
icculus@9
  2372
    {
icculus@9
  2373
        int w, h, screenbpp;
icculus@9
  2374
        Uint8 *src, *dst;
icculus@9
  2375
icculus@9
  2376
        /* Set up the copy pointers */
icculus@9
  2377
        screenbpp = screen->format->BytesPerPixel;
icculus@9
  2378
        if ((screen->flags & SDL_SCREEN_SURFACE) ||
icculus@9
  2379
            FORMAT_EQUAL(screen->format, window->surface->format)) {
icculus@9
  2380
            src = SDL_cursor->save[0];
icculus@9
  2381
        } else {
icculus@9
  2382
            src = SDL_cursor->save[1];
icculus@9
  2383
        }
icculus@9
  2384
        dst = (Uint8 *) screen->pixels + area.y * screen->pitch +
icculus@9
  2385
            area.x * screenbpp;
icculus@9
  2386
icculus@9
  2387
        /* Perform the copy */
icculus@9
  2388
        w = area.w * screenbpp;
icculus@9
  2389
        h = area.h;
icculus@9
  2390
        while (h--) {
icculus@9
  2391
            SDL_memcpy(dst, src, w);
icculus@9
  2392
            src += w;
icculus@9
  2393
            dst += screen->pitch;
icculus@9
  2394
        }
icculus@9
  2395
icculus@9
  2396
        /* Perform pixel conversion on cursor background */
icculus@9
  2397
        if (src > SDL_cursor->save[1]) {
icculus@9
  2398
            SDL_ConvertCursorSave(screen, area.w, area.h);
icculus@9
  2399
        }
icculus@9
  2400
    }
icculus@9
  2401
}
icculus@9
  2402
icculus@9
  2403
void
icculus@9
  2404
SDL_EraseCursor(SDL_Surface * screen)
icculus@9
  2405
{
icculus@9
  2406
    /* Lock the screen if necessary */
icculus@9
  2407
    if (screen == NULL) {
icculus@9
  2408
        return;
icculus@9
  2409
    }
icculus@9
  2410
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2411
        if (SDL_LockSurface(screen) < 0) {
icculus@9
  2412
            return;
icculus@9
  2413
        }
icculus@9
  2414
    }
icculus@9
  2415
icculus@9
  2416
    SDL_EraseCursorNoLock(screen);
icculus@9
  2417
icculus@9
  2418
    /* Unlock the screen and update if necessary */
icculus@9
  2419
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2420
        SDL_UnlockSurface(screen);
icculus@9
  2421
    }
icculus@9
  2422
    if (screen->flags & SDL_SCREEN_SURFACE) {
icculus@9
  2423
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2424
        SDL_Window *window;
icculus@9
  2425
        SDL_Rect area;
icculus@9
  2426
icculus@9
  2427
        window = SDL_GetWindowFromSurface(screen);
icculus@9
  2428
        if (!window) {
icculus@9
  2429
            return;
icculus@9
  2430
        }
icculus@9
  2431
icculus@9
  2432
        SDL_MouseRect(&area);
icculus@9
  2433
icculus@9
  2434
        if (_this->UpdateWindowSurface) {
icculus@9
  2435
            _this->UpdateWindowSurface(_this, window, 1, &area);
icculus@9
  2436
        }
icculus@9
  2437
    }
icculus@9
  2438
}
icculus@9
  2439
icculus@9
  2440
/* Reset the cursor on video mode change
icculus@9
  2441
   FIXME:  Keep track of all cursors, and reset them all.
icculus@9
  2442
 */
icculus@9
  2443
void
icculus@9
  2444
SDL_ResetCursor(void)
icculus@9
  2445
{
icculus@9
  2446
    int savelen;
icculus@9
  2447
icculus@9
  2448
    if (SDL_cursor) {
icculus@9
  2449
        savelen = SDL_cursor->area.w * 4 * SDL_cursor->area.h;
icculus@9
  2450
        SDL_cursor->area.x = 0;
icculus@9
  2451
        SDL_cursor->area.y = 0;
icculus@9
  2452
        SDL_memset(SDL_cursor->save[0], 0, savelen);
icculus@9
  2453
    }
icculus@9
  2454
}
icculus@9
  2455
#endif
icculus@9
  2456
icculus@9
  2457
struct private_yuvhwdata
icculus@9
  2458
{
icculus@9
  2459
    SDL_SW_YUVTexture *texture;
icculus@9
  2460
    SDL_Surface *display;
icculus@9
  2461
    Uint32 display_format;
icculus@9
  2462
};
icculus@9
  2463
icculus@9
  2464
SDL_Overlay *
icculus@9
  2465
SDL_CreateYUVOverlay(int w, int h, Uint32 format, SDL_Surface * display)
icculus@9
  2466
{
icculus@9
  2467
    SDL_Overlay *overlay;
icculus@9
  2468
    Uint32 texture_format;
icculus@9
  2469
    SDL_SW_YUVTexture *texture;
icculus@9
  2470
icculus@9
  2471
    if ((display->flags & SDL_OPENGL) == SDL_OPENGL) {
icculus@9
  2472
        SDL_SetError("YUV overlays are not supported in OpenGL mode");
icculus@9
  2473
        return NULL;
icculus@9
  2474
    }
icculus@9
  2475
icculus@16
  2476
    if (display != PublicSurface) {
icculus@9
  2477
        SDL_SetError("YUV display is only supported on the screen surface");
icculus@9
  2478
        return NULL;
icculus@9
  2479
    }
icculus@9
  2480
icculus@9
  2481
    switch (format) {
icculus@9
  2482
    case SDL_YV12_OVERLAY:
icculus@9
  2483
        texture_format = SDL_PIXELFORMAT_YV12;
icculus@9
  2484
        break;
icculus@9
  2485
    case SDL_IYUV_OVERLAY:
icculus@9
  2486
        texture_format = SDL_PIXELFORMAT_IYUV;
icculus@9
  2487
        break;
icculus@9
  2488
    case SDL_YUY2_OVERLAY:
icculus@9
  2489
        texture_format = SDL_PIXELFORMAT_YUY2;
icculus@9
  2490
        break;
icculus@9
  2491
    case SDL_UYVY_OVERLAY:
icculus@9
  2492
        texture_format = SDL_PIXELFORMAT_UYVY;
icculus@9
  2493
        break;
icculus@9
  2494
    case SDL_YVYU_OVERLAY:
icculus@9
  2495
        texture_format = SDL_PIXELFORMAT_YVYU;
icculus@9
  2496
        break;
icculus@9
  2497
    default:
icculus@9
  2498
        SDL_SetError("Unknown YUV format");
icculus@9
  2499
        return NULL;
icculus@9
  2500
    }
icculus@9
  2501
icculus@9
  2502
    overlay = (SDL_Overlay *) SDL_malloc(sizeof(*overlay));
icculus@9
  2503
    if (!overlay) {
icculus@9
  2504
        SDL_OutOfMemory();
icculus@9
  2505
        return NULL;
icculus@9
  2506
    }
icculus@9
  2507
    SDL_zerop(overlay);
icculus@9
  2508
icculus@9
  2509
    overlay->hwdata =
icculus@9
  2510
        (struct private_yuvhwdata *) SDL_malloc(sizeof(*overlay->hwdata));
icculus@9
  2511
    if (!overlay->hwdata) {
icculus@9
  2512
        SDL_free(overlay);
icculus@9
  2513
        SDL_OutOfMemory();
icculus@9
  2514
        return NULL;
icculus@9
  2515
    }
icculus@9
  2516
icculus@9
  2517
    texture = SDL_SW_CreateYUVTexture(texture_format, w, h);
icculus@9
  2518
    if (!texture) {
icculus@9
  2519
        SDL_free(overlay->hwdata);
icculus@9
  2520
        SDL_free(overlay);
icculus@9
  2521
        return NULL;
icculus@9
  2522
    }
icculus@9
  2523
    overlay->hwdata->texture = texture;
icculus@9
  2524
    overlay->hwdata->display = NULL;
icculus@9
  2525
    overlay->hwdata->display_format = SDL_PIXELFORMAT_UNKNOWN;
icculus@9
  2526
icculus@9
  2527
    overlay->format = format;
icculus@9
  2528
    overlay->w = w;
icculus@9
  2529
    overlay->h = h;
icculus@9
  2530
    if (format == SDL_YV12_OVERLAY || format == SDL_IYUV_OVERLAY) {
icculus@9
  2531
        overlay->planes = 3;
icculus@9
  2532
    } else {
icculus@9
  2533
        overlay->planes = 1;
icculus@9
  2534
    }
icculus@9
  2535
    overlay->pitches = texture->pitches;
icculus@9
  2536
    overlay->pixels = texture->planes;
icculus@9
  2537
icculus@9
  2538
    return overlay;
icculus@9
  2539
}
icculus@9
  2540
icculus@9
  2541
int
icculus@9
  2542
SDL_LockYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2543
{
icculus@9
  2544
    SDL_Rect rect;
icculus@9
  2545
    void *pixels;
icculus@9
  2546
    int pitch;
icculus@9
  2547
icculus@9
  2548
    if (!overlay) {
icculus@9
  2549
        SDL_SetError("Passed a NULL overlay");
icculus@9
  2550
        return -1;
icculus@9
  2551
    }
icculus@9
  2552
icculus@9
  2553
    rect.x = 0;
icculus@9
  2554
    rect.y = 0;
icculus@9
  2555
    rect.w = overlay->w;
icculus@9
  2556
    rect.h = overlay->h;
icculus@9
  2557
icculus@9
  2558
    if (SDL_SW_LockYUVTexture(overlay->hwdata->texture, &rect, &pixels, &pitch) < 0) {
icculus@9
  2559
        return -1;
icculus@9
  2560
    }
icculus@9
  2561
icculus@9
  2562
    overlay->pixels[0] = (Uint8 *) pixels;
icculus@9
  2563
    overlay->pitches[0] = pitch;
icculus@9
  2564
    switch (overlay->format) {
icculus@9
  2565
    case SDL_YV12_OVERLAY:
icculus@9
  2566
    case SDL_IYUV_OVERLAY:
icculus@9
  2567
        overlay->pitches[1] = pitch / 2;
icculus@9
  2568
        overlay->pitches[2] = pitch / 2;
icculus@9
  2569
        overlay->pixels[1] =
icculus@9
  2570
            overlay->pixels[0] + overlay->pitches[0] * overlay->h;
icculus@9
  2571
        overlay->pixels[2] =
icculus@9
  2572
            overlay->pixels[1] + overlay->pitches[1] * overlay->h / 2;
icculus@9
  2573
        break;
icculus@9
  2574
    case SDL_YUY2_OVERLAY:
icculus@9
  2575
    case SDL_UYVY_OVERLAY:
icculus@9
  2576
    case SDL_YVYU_OVERLAY:
icculus@9
  2577
        break;
icculus@9
  2578
    }
icculus@9
  2579
    return 0;
icculus@9
  2580
}
icculus@9
  2581
icculus@9
  2582
void
icculus@9
  2583
SDL_UnlockYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2584
{
icculus@9
  2585
    if (!overlay) {
icculus@9
  2586
        return;
icculus@9
  2587
    }
icculus@9
  2588
icculus@9
  2589
    SDL_SW_UnlockYUVTexture(overlay->hwdata->texture);
icculus@9
  2590
}
icculus@9
  2591
icculus@9
  2592
int
icculus@9
  2593
SDL_DisplayYUVOverlay(SDL_Overlay * overlay, SDL_Rect * dstrect)
icculus@9
  2594
{
icculus@9
  2595
    SDL_Surface *display;
icculus@9
  2596
    SDL_Rect src_rect;
icculus@9
  2597
    SDL_Rect dst_rect;
icculus@9
  2598
    void *pixels;
icculus@9
  2599
icculus@9
  2600
    if (!overlay || !dstrect) {
icculus@9
  2601
        SDL_SetError("Passed a NULL overlay or dstrect");
icculus@9
  2602
        return -1;
icculus@9
  2603
    }
icculus@9
  2604
icculus@9
  2605
    display = overlay->hwdata->display;
icculus@16
  2606
    if (display != VideoSurface) {
icculus@16
  2607
        overlay->hwdata->display = display = VideoSurface;
icculus@9
  2608
        overlay->hwdata->display_format = SDL_MasksToPixelFormatEnum(
icculus@9
  2609
                                                display->format->BitsPerPixel,
icculus@9
  2610
                                                display->format->Rmask,
icculus@9
  2611
                                                display->format->Gmask,
icculus@9
  2612
                                                display->format->Bmask,
icculus@9
  2613
                                                display->format->Amask);
icculus@9
  2614
    }
icculus@9
  2615
icculus@9
  2616
    src_rect.x = 0;
icculus@9
  2617
    src_rect.y = 0;
icculus@9
  2618
    src_rect.w = overlay->w;
icculus@9
  2619
    src_rect.h = overlay->h;
icculus@9
  2620
icculus@9
  2621
    if (!SDL_IntersectRect(&display->clip_rect, dstrect, &dst_rect)) {
icculus@9
  2622
        return 0;
icculus@9
  2623
    }
icculus@9
  2624
     
icculus@9
  2625
    pixels = (void *)((Uint8 *)display->pixels +
icculus@9
  2626
                        dst_rect.y * display->pitch +
icculus@9
  2627
                        dst_rect.x * display->format->BytesPerPixel);
icculus@9
  2628
icculus@9
  2629
    if (SDL_SW_CopyYUVToRGB(overlay->hwdata->texture, &src_rect,
icculus@9
  2630
                            overlay->hwdata->display_format,
icculus@9
  2631
                            dst_rect.w, dst_rect.h,
icculus@9
  2632
                            pixels, display->pitch) < 0) {
icculus@9
  2633
        return -1;
icculus@9
  2634
    }
icculus@19
  2635
    SDL_UpdateWindowSurface(VideoWindow20);
icculus@9
  2636
    return 0;
icculus@9
  2637
}
icculus@9
  2638
icculus@9
  2639
void
icculus@9
  2640
SDL_FreeYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2641
{
icculus@9
  2642
    if (!overlay) {
icculus@9
  2643
        return;
icculus@9
  2644
    }
icculus@9
  2645
    if (overlay->hwdata) {
icculus@9
  2646
        if (overlay->hwdata->texture) {
icculus@9
  2647
            SDL_SW_DestroyYUVTexture(overlay->hwdata->texture);
icculus@9
  2648
        }
icculus@9
  2649
        SDL_free(overlay->hwdata);
icculus@9
  2650
    }
icculus@9
  2651
    SDL_free(overlay);
icculus@9
  2652
}
icculus@9
  2653
icculus@9
  2654
void
icculus@9
  2655
SDL_GL_SwapBuffers(void)
icculus@9
  2656
{
icculus@19
  2657
    SDL_GL_SwapWindow(VideoWindow20);
icculus@9
  2658
}
icculus@9
  2659
icculus@9
  2660
int
icculus@9
  2661
SDL_SetGamma(float red, float green, float blue)
icculus@9
  2662
{
icculus@9
  2663
    Uint16 red_ramp[256];
icculus@9
  2664
    Uint16 green_ramp[256];
icculus@9
  2665
    Uint16 blue_ramp[256];
icculus@9
  2666
icculus@9
  2667
    SDL_CalculateGammaRamp(red, red_ramp);
icculus@9
  2668
    if (green == red) {
icculus@9
  2669
        SDL_memcpy(green_ramp, red_ramp, sizeof(red_ramp));
icculus@9
  2670
    } else {
icculus@9
  2671
        SDL_CalculateGammaRamp(green, green_ramp);
icculus@9
  2672
    }
icculus@9
  2673
    if (blue == red) {
icculus@9
  2674
        SDL_memcpy(blue_ramp, red_ramp, sizeof(red_ramp));
icculus@9
  2675
    } else {
icculus@9
  2676
        SDL_CalculateGammaRamp(blue, blue_ramp);
icculus@9
  2677
    }
icculus@19
  2678
    return SDL_SetWindowGammaRamp(VideoWindow20, red_ramp, green_ramp, blue_ramp);
icculus@9
  2679
}
icculus@9
  2680
icculus@9
  2681
int
icculus@9
  2682
SDL_SetGammaRamp(const Uint16 * red, const Uint16 * green, const Uint16 * blue)
icculus@9
  2683
{
icculus@19
  2684
    return SDL_SetWindowGammaRamp(VideoWindow20, red, green, blue);
icculus@9
  2685
}
icculus@9
  2686
icculus@9
  2687
int
icculus@9
  2688
SDL_GetGammaRamp(Uint16 * red, Uint16 * green, Uint16 * blue)
icculus@9
  2689
{
icculus@19
  2690
    return SDL_GetWindowGammaRamp(VideoWindow20, red, green, blue);
icculus@9
  2691
}
icculus@9
  2692
icculus@9
  2693
int
icculus@9
  2694
SDL_EnableKeyRepeat(int delay, int interval)
icculus@9
  2695
{
icculus@9
  2696
    return 0;
icculus@9
  2697
}
icculus@9
  2698
icculus@9
  2699
void
icculus@9
  2700
SDL_GetKeyRepeat(int *delay, int *interval)
icculus@9
  2701
{
icculus@9
  2702
    if (delay) {
icculus@9
  2703
        *delay = SDL_DEFAULT_REPEAT_DELAY;
icculus@9
  2704
    }
icculus@9
  2705
    if (interval) {
icculus@9
  2706
        *interval = SDL_DEFAULT_REPEAT_INTERVAL;
icculus@9
  2707
    }
icculus@9
  2708
}
icculus@9
  2709
icculus@19
  2710
icculus@19
  2711
icculus@19
  2712
icculus@9
  2713
int
icculus@9
  2714
SDL_EnableUNICODE(int enable)
icculus@9
  2715
{
icculus@16
  2716
    int previous = EnabledUnicode;
icculus@9
  2717
icculus@9
  2718
    switch (enable) {
icculus@9
  2719
    case 1:
icculus@16
  2720
        EnabledUnicode = 1;
icculus@9
  2721
        SDL_StartTextInput();
icculus@9
  2722
        break;
icculus@9
  2723
    case 0:
icculus@16
  2724
        EnabledUnicode = 0;
icculus@9
  2725
        SDL_StopTextInput();
icculus@9
  2726
        break;
icculus@9
  2727
    }
icculus@9
  2728
    return previous;
icculus@9
  2729
}
icculus@9
  2730
icculus@9
  2731
static Uint32
icculus@9
  2732
SDL_SetTimerCallback(Uint32 interval, void* param)
icculus@9
  2733
{
icculus@9
  2734
    return ((SDL_OldTimerCallback)param)(interval);
icculus@9
  2735
}
icculus@9
  2736
icculus@9
  2737
int
icculus@9
  2738
SDL_SetTimer(Uint32 interval, SDL_OldTimerCallback callback)
icculus@9
  2739
{
icculus@9
  2740
    static SDL_TimerID compat_timer;
icculus@9
  2741
icculus@9
  2742
    if (compat_timer) {
icculus@10
  2743
        SDL20_RemoveTimer(compat_timer);
icculus@9
  2744
        compat_timer = 0;
icculus@9
  2745
    }
icculus@9
  2746
icculus@9