src/SDL12_compat.c
author Ryan C. Gordon <icculus@icculus.org>
Wed, 10 Apr 2013 15:44:31 -0400
changeset 20 c4f19f562177
parent 19 bb548168a73b
child 21 acd0dd6933f3
permissions -rw-r--r--
Reworked event queue stuff to work effienciently with SDL_GETEVENT.
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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_CreateCursor
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// !!! IMPLEMENT_ME SDL_CreateThread
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// !!! IMPLEMENT_ME SDL_EventState
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// !!! IMPLEMENT_ME SDL_FillRect
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// !!! IMPLEMENT_ME SDL_FreeCursor
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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_GetClipRect
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// !!! IMPLEMENT_ME SDL_GetCursor
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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_SetClipRect
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// !!! IMPLEMENT_ME SDL_SetColorKey
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// !!! IMPLEMENT_ME SDL_SetCursor
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// !!! IMPLEMENT_ME SDL_SetModState
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// !!! IMPLEMENT_ME SDL_ShowCursor
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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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    void *hwdata;
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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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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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// !!! 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
   407
        #define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) SDL20_SYM(rc,fn,params,args,ret)
icculus@9
   408
        #include "SDL20_syms.h"
icculus@9
   409
        #undef SDL20_SYM_PASSTHROUGH
icculus@9
   410
        #undef SDL20_SYM
icculus@11
   411
        SDL20_SetError = (SDL20_SetError_t) LoadSDL20Symbol("SDL_SetError", &okay);
icculus@9
   412
        if (!okay)
icculus@9
   413
            UnloadSDL20();
icculus@9
   414
    }
icculus@9
   415
    return okay;
icculus@9
   416
}
icculus@9
   417
icculus@9
   418
icculus@9
   419
static int
icculus@9
   420
GetVideoDisplay()
icculus@9
   421
{
icculus@9
   422
    // !!! FIXME: cache this value during SDL_Init() so it doesn't change.
icculus@9
   423
    const char *variable = SDL_getenv("SDL_VIDEO_FULLSCREEN_DISPLAY");
icculus@9
   424
    if ( !variable ) {
icculus@9
   425
        variable = SDL_getenv("SDL_VIDEO_FULLSCREEN_HEAD");
icculus@9
   426
    }
icculus@9
   427
    if ( variable ) {
icculus@9
   428
        return SDL_atoi(variable);
icculus@9
   429
    } else {
icculus@9
   430
        return 0;
icculus@9
   431
    }
icculus@9
   432
}
icculus@9
   433
icculus@11
   434
static int
icculus@11
   435
DoSDLInit(const int justsubs, Uint32 sdl12flags)
icculus@9
   436
{
icculus@9
   437
    Uint32 sdl20flags = 0;
icculus@9
   438
    int rc;
icculus@9
   439
icculus@9
   440
    if (!LoadSDL20())
icculus@9
   441
        return -1;
icculus@9
   442
icculus@19
   443
    #define SETFLAG(flag) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag
icculus@9
   444
    SETFLAG(TIMER);
icculus@9
   445
    SETFLAG(AUDIO);
icculus@9
   446
    SETFLAG(VIDEO);
icculus@9
   447
    SETFLAG(JOYSTICK);
icculus@9
   448
    SETFLAG(NOPARACHUTE);
icculus@11
   449
    #undef SETFLAG
icculus@11
   450
icculus@11
   451
    // There's no CDROM in 2.0, but we'll just pretend it succeeded.
icculus@11
   452
    if (sdl12flags & SDL12_INIT_CDROM)
icculus@16
   453
        CDRomInit = 1;
icculus@11
   454
icculus@11
   455
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   456
icculus@11
   457
    rc = justsubs ? SDL20_InitSubSystem(sdl20flags) : SDL20_Init(sdl20flags);
icculus@11
   458
    if ((rc == 0) && (sdl20flags & SDL_INIT_VIDEO))
icculus@18
   459
    {
icculus@20
   460
        int i;
icculus@20
   461
        for (i = 0; i < SDL12_MAXEVENTS-1; i++)
icculus@20
   462
            EventQueuePool[i].next = &EventQueuePool[i+1];
icculus@20
   463
        EventQueuePool[SDL12_MAXEVENTS-1].next = NULL;
icculus@20
   464
        EventQueueHead = EventQueueTail = NULL;
icculus@20
   465
        EventQueueAvailable = EventQueuePool;
icculus@20
   466
icculus@18
   467
        SDL20_SetEventFilter(EventFilter20to12, NULL);
icculus@16
   468
        VideoDisplayIndex = GetVideoDisplay();
icculus@18
   469
    }
icculus@18
   470
icculus@11
   471
    return rc;
icculus@11
   472
}
icculus@11
   473
icculus@11
   474
int
icculus@11
   475
SDL_InitSubSystem(Uint32 sdl12flags)
icculus@11
   476
{
icculus@11
   477
    return DoSDLInit(1, sdl12flags);
icculus@11
   478
}
icculus@11
   479
icculus@11
   480
int
icculus@11
   481
SDL_Init(Uint32 sdl12flags)
icculus@11
   482
{
icculus@11
   483
    return DoSDLInit(0, sdl12flags);
icculus@11
   484
}
icculus@11
   485
icculus@11
   486
Uint32
icculus@11
   487
SDL_WasInit(Uint32 sdl12flags)
icculus@11
   488
{
icculus@11
   489
    // !!! FIXME: this is cut and pasted several places.
icculus@11
   490
    Uint32 sdl20flags = 0;
icculus@11
   491
    Uint32 extraflags = 0;
icculus@11
   492
icculus@19
   493
    #define SETFLAG(flag) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag
icculus@11
   494
    SETFLAG(TIMER);
icculus@11
   495
    SETFLAG(AUDIO);
icculus@11
   496
    SETFLAG(VIDEO);
icculus@11
   497
    SETFLAG(JOYSTICK);
icculus@11
   498
    SETFLAG(NOPARACHUTE);
icculus@11
   499
    #undef SETFLAG
icculus@11
   500
icculus@16
   501
    if ((sdl12flags & SDL12_INIT_CDROM) && (CDRomInit))
icculus@11
   502
        extraflags |= SDL12_INIT_CDROM;
icculus@11
   503
icculus@11
   504
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   505
icculus@11
   506
    // !!! FIXME: convert back to 1.2
icculus@11
   507
    return SDL20_WasInit(sdl20flags) | extraflags;
icculus@11
   508
}
icculus@11
   509
icculus@11
   510
void
icculus@11
   511
SDL_QuitSubSystem(Uint32 sdl12flags)
icculus@11
   512
{
icculus@11
   513
    Uint32 sdl20flags = 0;
icculus@11
   514
icculus@19
   515
    #define SETFLAG(flag) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag
icculus@11
   516
    SETFLAG(TIMER);
icculus@11
   517
    SETFLAG(AUDIO);
icculus@11
   518
    SETFLAG(VIDEO);
icculus@11
   519
    SETFLAG(JOYSTICK);
icculus@11
   520
    SETFLAG(NOPARACHUTE);
icculus@9
   521
    // There's no CDROM in 2.0, but we'll just pretend it succeeded.
icculus@9
   522
    #undef SETFLAG
icculus@9
   523
icculus@16
   524
    if (sdl12flags & SDL12_INIT_CDROM)
icculus@16
   525
        CDRomInit = 0;
icculus@16
   526
icculus@17
   527
    // !!! FIXME: reset a bunch of other global variables too.
icculus@17
   528
    if (sdl12flags & SDL12_INIT_VIDEO) {
icculus@18
   529
        EventFilter12 = NULL;
icculus@20
   530
        EventQueueAvailable = EventQueueHead = EventQueueTail = NULL;
icculus@17
   531
        SDL20_FreeFormat(VideoInfo.vfmt);
icculus@17
   532
        SDL_zero(VideoInfo);
icculus@17
   533
    }
icculus@17
   534
icculus@9
   535
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   536
    SDL20_QuitSubSystem(sdl20flags);
icculus@9
   537
icculus@11
   538
    // !!! FIXME: UnloadSDL20() ?
icculus@9
   539
}
icculus@9
   540
icculus@9
   541
void
icculus@9
   542
SDL_Quit(void)
icculus@9
   543
{
icculus@17
   544
    // !!! FIXME: reset a bunch of other global variables too.
icculus@18
   545
    EventFilter12 = NULL;
icculus@20
   546
    EventQueueAvailable = EventQueueHead = EventQueueTail = NULL;
icculus@17
   547
    SDL20_FreeFormat(VideoInfo.vfmt);
icculus@17
   548
    SDL_zero(VideoInfo);
icculus@16
   549
    CDRomInit = 0;
icculus@9
   550
    SDL20_Quit();
icculus@9
   551
    UnloadSDL20();
icculus@9
   552
}
icculus@9
   553
icculus@11
   554
void
icculus@11
   555
SDL_SetError(const char *fmt, ...)
icculus@11
   556
{
icculus@12
   557
    char *str = NULL;
icculus@12
   558
    va_list ap;
icculus@12
   559
    va_start(ap, fmt);
icculus@12
   560
    vasprintf(&str, fmt, ap);
icculus@12
   561
    va_end(ap);
icculus@12
   562
    if (!str)
icculus@12
   563
        SDL20_OutOfMemory();
icculus@12
   564
    else
icculus@12
   565
    {
icculus@12
   566
        SDL20_SetError("%s", str);
icculus@12
   567
        free(str);
icculus@12
   568
    }
icculus@11
   569
}
icculus@9
   570
icculus@19
   571
const char *
icculus@9
   572
SDL_GetError(void)
icculus@9
   573
{
icculus@9
   574
    if (!Loaded_SDL20)
icculus@9
   575
    {
icculus@19
   576
        static const char noload_errstr[] = "Failed to load SDL 2.0 shared library";
icculus@9
   577
        return noload_errstr;
icculus@9
   578
    }
icculus@9
   579
    return SDL20_GetError();
icculus@9
   580
}
icculus@9
   581
icculus@9
   582
icculus@9
   583
static const char *
icculus@9
   584
GetDriverName(const char *name, char *namebuf, int maxlen)
icculus@9
   585
{
icculus@9
   586
    if (name) {
icculus@9
   587
        if (namebuf) {
icculus@9
   588
            SDL20_strlcpy(namebuf, name, maxlen);
icculus@9
   589
            return namebuf;
icculus@9
   590
        } else {
icculus@9
   591
            return name;
icculus@9
   592
        }
icculus@9
   593
    }
icculus@9
   594
    return NULL;
icculus@9
   595
}
icculus@9
   596
icculus@9
   597
const char *
icculus@9
   598
SDL_AudioDriverName(char *namebuf, int maxlen)
icculus@9
   599
{
icculus@9
   600
    return GetDriverName(SDL20_GetCurrentAudioDriver(), namebuf, maxlen);
icculus@9
   601
}
icculus@9
   602
icculus@9
   603
const char *
icculus@9
   604
SDL_VideoDriverName(char *namebuf, int maxlen)
icculus@9
   605
{
icculus@9
   606
    return GetDriverName(SDL20_GetCurrentVideoDriver(), namebuf, maxlen);
icculus@9
   607
}
icculus@9
   608
icculus@18
   609
static int
icculus@18
   610
EventFilter20to12(void *data, SDL_Event *event20)
icculus@15
   611
{
icculus@18
   612
    const int maxUserEvents12 = SDL12_NUMEVENTS - SDL12_USEREVENT;
icculus@18
   613
    SDL12_Event event12;
icculus@18
   614
icculus@18
   615
    SDL_assert(data == NULL);  /* currently unused. */
icculus@18
   616
icculus@18
   617
    SDL_zero(event12);
icculus@18
   618
icculus@18
   619
    switch (event20->type)
icculus@18
   620
    {
icculus@18
   621
        case SDL_QUIT:
icculus@18
   622
            event12->type = SDL12_QUIT;
icculus@18
   623
            break;
icculus@18
   624
icculus@18
   625
        case SDL_WINDOWEVENT:
icculus@18
   626
            switch (event20->window.event)
icculus@18
   627
            {
icculus@18
   628
                case SDL_WINDOWEVENT_CLOSE:
icculus@18
   629
                    event12->type = SDL12_QUIT;
icculus@18
   630
                    break;
icculus@18
   631
icculus@18
   632
                case SDL_WINDOWEVENT_SHOWN:
icculus@18
   633
                case SDL_WINDOWEVENT_EXPOSED:
icculus@18
   634
                    event12->type = SDL12_VIDEOEXPOSE;
icculus@18
   635
                    break;
icculus@18
   636
icculus@18
   637
                case SDL_WINDOWEVENT_RESIZED:
icculus@18
   638
                case SDL_WINDOWEVENT_SIZE_CHANGED:  // !!! FIXME: what's the difference between RESIZED and SIZE_CHANGED?
icculus@18
   639
                    event12->type = SDL12_VIDEORESIZE;
icculus@18
   640
                    event12->resize.w = event20->window.data1;
icculus@18
   641
                    event12->resize.h = event20->window.data2;
icculus@18
   642
                    break;
icculus@18
   643
icculus@18
   644
                case SDL_WINDOWEVENT_MINIMIZED:
icculus@18
   645
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   646
                    event12->active.gain = 0;
icculus@18
   647
                    event12->active.state = SDL_APPACTIVE;
icculus@18
   648
                    break;
icculus@18
   649
icculus@18
   650
                case SDL_WINDOWEVENT_RESTORED:
icculus@18
   651
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   652
                    event12->active.gain = 1;
icculus@18
   653
                    event12->active.state = SDL_APPACTIVE;
icculus@18
   654
                    break;
icculus@18
   655
icculus@18
   656
                case SDL_WINDOWEVENT_ENTER:
icculus@18
   657
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   658
                    event12->active.gain = 1;
icculus@18
   659
                    event12->active.state = SDL_APPMOUSEFOCUS;
icculus@18
   660
                    break;
icculus@18
   661
icculus@18
   662
                case SDL_WINDOWEVENT_LEAVE:
icculus@18
   663
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   664
                    event12->active.gain = 0;
icculus@18
   665
                    event12->active.state = SDL_APPMOUSEFOCUS;
icculus@18
   666
                    break;
icculus@18
   667
icculus@18
   668
                case SDL_WINDOWEVENT_FOCUS_GAINED:
icculus@18
   669
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   670
                    event12->active.gain = 1;
icculus@18
   671
                    event12->active.state = SDL_APPINPUTFOCUS;
icculus@18
   672
                    break;
icculus@18
   673
icculus@18
   674
                case SDL_WINDOWEVENT_FOCUS_LOST:
icculus@18
   675
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   676
                    event12->active.gain = 0;
icculus@18
   677
                    event12->active.state = SDL_APPINPUTFOCUS;
icculus@18
   678
                    break;
icculus@18
   679
            }
icculus@18
   680
            break;
icculus@18
   681
icculus@18
   682
        // !!! FIXME: this is sort of a mess to convert.
icculus@18
   683
        //case SDL_SYSWMEVENT:
icculus@18
   684
icculus@18
   685
        // !!! FIXME: write me
icculus@18
   686
        case SDL_KEYDOWN:
icculus@18
   687
        case SDL_KEYUP:
icculus@18
   688
            return 0;
icculus@18
   689
icculus@18
   690
        // !!! FIXME: write me
icculus@18
   691
        case SDL_TEXTEDITING:
icculus@18
   692
        case SDL_TEXTINPUT:
icculus@18
   693
            return 0;
icculus@18
   694
icculus@18
   695
        case SDL_MOUSEMOTION:
icculus@18
   696
        	event12->type = SDL12_MOUSEMOTION;
icculus@18
   697
            event12->motion.which = (Uint8) event20->motion.which;
icculus@18
   698
            event12->motion.state = event20->motion.state;
icculus@18
   699
            event12->motion.x = (Uint16) event20->motion.x;
icculus@18
   700
            event12->motion.y = (Uint16) event20->motion.y;
icculus@18
   701
            event12->motion.xrel = (Sint16) event20->motion.xrel;
icculus@18
   702
            event12->motion.yrel = (Sint16) event20->motion.yrel;
icculus@18
   703
            break;
icculus@18
   704
icculus@18
   705
        case SDL_MOUSEBUTTONDOWN:
icculus@18
   706
        	event12->type = SDL12_MOUSEBUTTONDOWN;
icculus@18
   707
            event12->button.which = (Uint8) event20->button.which;
icculus@18
   708
            event12->button.button = event20->button.button;
icculus@18
   709
            event12->button.state = event20->button.state;
icculus@18
   710
            event12->button.x = (Uint16) event20->button.x;
icculus@18
   711
            event12->button.y = (Uint16) event20->button.y;
icculus@18
   712
            break;
icculus@18
   713
icculus@18
   714
        case SDL_MOUSEBUTTONUP:
icculus@18
   715
        	event12->type = SDL12_MOUSEBUTTONUP;
icculus@18
   716
            event12->button.which = (Uint8) event20->button.which;
icculus@18
   717
            event12->button.button = event20->button.button;
icculus@18
   718
            event12->button.state = event20->button.state;
icculus@18
   719
            event12->button.x = (Uint16) event20->button.x;
icculus@18
   720
            event12->button.y = (Uint16) event20->button.y;
icculus@18
   721
            break;
icculus@18
   722
icculus@18
   723
        case SDL_MOUSEWHEEL:
icculus@18
   724
            return 0;  // !!! FIXME
icculus@18
   725
        	//event12->type = SDL12_MOUSEBUTTONDOWN;
icculus@18
   726
            //check app filter, push event
icculus@18
   727
        	//event12->type = SDL12_MOUSEBUTTONUP;
icculus@18
   728
            break;
icculus@18
   729
icculus@18
   730
        case SDL_JOYAXISMOTION:
icculus@18
   731
            event12->type = SDL12_JOYAXISMOTION;
icculus@18
   732
            event12->jaxis.which = (Uint8) event20->jaxis.which;
icculus@18
   733
            event12->jaxis.axis = event20->jaxis.axis;
icculus@18
   734
            event12->jaxis.value = event20->jaxis.value;
icculus@18
   735
            break;
icculus@18
   736
icculus@18
   737
        case SDL_JOYBALLMOTION:
icculus@18
   738
            event12->type = SDL12_JOYBALLMOTION;
icculus@18
   739
            event12->jball.which = (Uint8) event20->jball.which;
icculus@18
   740
            event12->jball.ball = event20->jball.ball;
icculus@18
   741
            event12->jball.xrel = event20->jball.xrel;
icculus@18
   742
            event12->jball.yrel = event20->jball.yrel;
icculus@18
   743
            break;
icculus@18
   744
icculus@18
   745
        case SDL_JOYHATMOTION:
icculus@18
   746
            event12->type = SDL12_JOYHATMOTION;
icculus@18
   747
            event12->jhat.which = (Uint8) event20->jhat.which;
icculus@18
   748
            event12->jhat.hat = event20->jhat.hat;
icculus@18
   749
            event12->jhat.value = event20->jhat.xrel;
icculus@18
   750
            break;
icculus@18
   751
icculus@18
   752
        case SDL_JOYBUTTONDOWN:
icculus@18
   753
            event12->type = SDL12_JOYBUTTONDOWN;
icculus@18
   754
            event12->jbutton.which = (Uint8) event20->jbutton.which;
icculus@18
   755
            event12->jbutton.button = event20->jbutton.button;
icculus@18
   756
            event12->jbutton.state = event20->jbutton.state;
icculus@18
   757
            break;
icculus@18
   758
icculus@18
   759
        case SDL_JOYBUTTONUP:
icculus@18
   760
            event12->type = SDL12_JOYBUTTONUP;
icculus@18
   761
            event12->jbutton.which = (Uint8) event20->jbutton.which;
icculus@18
   762
            event12->jbutton.button = event20->jbutton.button;
icculus@18
   763
            event12->jbutton.state = event20->jbutton.state;
icculus@18
   764
            break;
icculus@18
   765
icculus@18
   766
        //case SDL_JOYDEVICEADDED:
icculus@18
   767
        //case SDL_JOYDEVICEREMOVED:
icculus@18
   768
	    //case SDL_CONTROLLERAXISMOTION:
icculus@18
   769
	    //case SDL_CONTROLLERBUTTONDOWN:
icculus@18
   770
	    //case SDL_CONTROLLERBUTTONUP:
icculus@18
   771
	    //case SDL_CONTROLLERDEVICEADDED:
icculus@18
   772
	    //case SDL_CONTROLLERDEVICEREMOVED:
icculus@18
   773
	    //case SDL_CONTROLLERDEVICEREMAPPED:
icculus@18
   774
        //case SDL_FINGERDOWN:
icculus@18
   775
        //case SDL_FINGERUP:
icculus@18
   776
        //case SDL_FINGERMOTION:
icculus@18
   777
        //case SDL_DOLLARGESTURE:
icculus@18
   778
        //case SDL_DOLLARRECORD:
icculus@18
   779
        //case SDL_MULTIGESTURE:
icculus@18
   780
        //case SDL_CLIPBOARDUPDATE:
icculus@18
   781
        //case SDL_DROPFILE:
icculus@18
   782
icculus@18
   783
        default:
icculus@18
   784
            return 0;  /* drop everything else. */
icculus@18
   785
    }
icculus@18
   786
icculus@18
   787
    if ((!EventFilter12) || (EventFilter12(&event12)))
icculus@18
   788
        SDL_PushEvent(&event12);
icculus@18
   789
icculus@18
   790
    return 0;  /* always drop it from the 2.0 event queue. */
icculus@18
   791
}
icculus@18
   792
icculus@18
   793
int
icculus@18
   794
SDL_PollEvent(SDL12_Event *event12)
icculus@18
   795
{
icculus@20
   796
    EventQueueType *next;
icculus@20
   797
icculus@18
   798
    SDL20_PumpEvents();  /* this will run our filter and build our 1.2 queue. */
icculus@18
   799
icculus@20
   800
    if (EventQueueHead == NULL)
icculus@18
   801
        return 0;  /* no events at the moment. */
icculus@18
   802
icculus@20
   803
    SDL_memcpy(event12, &EventQueueHead->event12, sizeof (SDL12_Event));
icculus@20
   804
    next = EventQueueHead->next;
icculus@20
   805
    EventQueueHead->next = EventQueueAvailable;
icculus@20
   806
    EventQueueAvailable = EventQueueHead;
icculus@20
   807
    EventQueueHead = next;
icculus@18
   808
    return 1;
icculus@18
   809
}
icculus@18
   810
icculus@18
   811
int
icculus@18
   812
SDL_PushEvent(SDL12_Event *event12)
icculus@18
   813
{
icculus@20
   814
    EventQueueType *item = EventQueueAvailable;
icculus@20
   815
    if (item == NULL)
icculus@18
   816
        return -1;  /* no space available at the moment. */
icculus@18
   817
icculus@20
   818
    EventQueueAvailable = item->next;
icculus@20
   819
    if (EventQueueTail)
icculus@20
   820
        EventQueueTail->next = item;
icculus@20
   821
    else
icculus@20
   822
        EventQueueHead = EventQueueTail = item;
icculus@20
   823
    item->next = NULL;
icculus@20
   824
icculus@20
   825
    SDL_memcpy(&item->event12, event12, sizeof (SDL12_Event));
icculus@18
   826
    return 0;
icculus@18
   827
}
icculus@18
   828
icculus@18
   829
int
icculus@18
   830
SDL_PeepEvents(SDL12_Event *events12, int numevents, SDL_eventaction action, Uint32 mask)
icculus@18
   831
{
icculus@18
   832
    int i;
icculus@18
   833
icculus@18
   834
    if (action == SDL_ADDEVENT)
icculus@18
   835
    {
icculus@18
   836
        for (i = 0; i < numevents; i++)
icculus@18
   837
        {
icculus@20
   838
            if (SDL_PushEvent(&events12[i]) == -1)
icculus@18
   839
                break;  /* out of space for more events. */
icculus@18
   840
        }
icculus@18
   841
        return i;
icculus@18
   842
    }
icculus@18
   843
    else if ((action == SDL_PEEKEVENT) || (action == SDL_GETEVENT))
icculus@18
   844
    {
icculus@20
   845
        const int isGet = (action == SDL_GETEVENT);
icculus@20
   846
        EventQueueType *prev = NULL;
icculus@20
   847
        EventQueueType *item = EventQueueHead;
icculus@20
   848
        EventQueueType *next = NULL;
icculus@18
   849
        int chosen = 0;
icculus@18
   850
        while (chosen < numevents)
icculus@18
   851
        {
icculus@20
   852
            EventQueueType *nextPrev = item;
icculus@20
   853
            if (!item)
icculus@18
   854
                break;  /* no more events at the moment. */
icculus@18
   855
icculus@20
   856
            next = item->next;  /* copy, since we might overwrite item->next */
icculus@18
   857
icculus@18
   858
            if (mask & (1<<event12->type))
icculus@18
   859
            {
icculus@20
   860
                SDL_memcpy(&events12[chosen++], &item->event12, sizeof (SDL12_Event));
icculus@20
   861
                if (isGet)  /* remove from list? */
icculus@20
   862
                {
icculus@20
   863
                    if (prev != NULL)
icculus@20
   864
                        prev->next = next;
icculus@20
   865
                    if (item == EventQueueHead)
icculus@20
   866
                        EventQueueHead = next;
icculus@20
   867
                    if (item == EventQueueTail)
icculus@20
   868
                        EventQueueTail = prev;
icculus@20
   869
icculus@20
   870
                    /* put it back in the free pool. */
icculus@20
   871
                    item->next = EventQueueAvailable;
icculus@20
   872
                    EventQueueAvailable = item;
icculus@20
   873
                    nextPrev = prev;  /* previous item doesn't change. */
icculus@18
   874
                }
icculus@18
   875
            }
icculus@20
   876
icculus@20
   877
            item = next;
icculus@20
   878
            prev = nextPrev;
icculus@18
   879
        }
icculus@18
   880
        return chosen;
icculus@18
   881
    }
icculus@18
   882
icculus@18
   883
    return 0;
icculus@18
   884
}
icculus@18
   885
icculus@18
   886
void
icculus@18
   887
SDL_SetEventFilter(SDL12_EventFilter filter12)
icculus@18
   888
{
icculus@18
   889
    /* We always have a filter installed, but will call the app's too. */
icculus@18
   890
    EventFilter12 = filter12;
icculus@18
   891
}
icculus@18
   892
icculus@18
   893
SDL12_EventFilter
icculus@18
   894
SDL_GetEventFilter(void)
icculus@18
   895
{
icculus@18
   896
    return EventFilter12;
icculus@18
   897
}
icculus@18
   898
icculus@15
   899
icculus@15
   900
SDL12_Surface *
icculus@15
   901
Surface20to12(SDL_Surface *surface20)
icculus@15
   902
{
icculus@15
   903
    SDL12_Surface *surface12 = NULL;
icculus@15
   904
    SDL12_Palette *palette12 = NULL;
icculus@15
   905
    SDL12_PixelFormat *format12 = NULL;
icculus@15
   906
    UInt32 flags = 0;
icculus@15
   907
icculus@15
   908
    if (!surface20)
icculus@15
   909
        return NULL;
icculus@15
   910
icculus@15
   911
    surface12 = (SDL12_Surface *) SDL20_malloc(sizeof (SDL12_Surface));
icculus@15
   912
    if (!surface12)
icculus@15
   913
        goto failed;
icculus@15
   914
icculus@15
   915
    palette12 = (SDL12_Palette *) SDL20_malloc(sizeof (SDL12_Palette));
icculus@15
   916
    if (!palette12)
icculus@15
   917
        goto failed;
icculus@15
   918
icculus@15
   919
    format12 = (SDL12_PixelFormat *) SDL20_malloc(sizeof (SDL12_PixelFormat));
icculus@15
   920
    if (!format12)
icculus@15
   921
        goto failed;
icculus@15
   922
icculus@15
   923
    SDL_zerop(palette12);
icculus@15
   924
    palette12->ncolors = surface20->palette->ncolors;
icculus@15
   925
    palette12->colors = surface20->palette->colors;
icculus@15
   926
icculus@15
   927
    SDL_zerop(format12);
icculus@15
   928
    format12->palette = palette12;
icculus@15
   929
    format12->BitsPerPixel = surface20->format->BitsPerPixel;
icculus@15
   930
    format12->BytesPerPixel = surface20->format->BytesPerPixel;
icculus@15
   931
    format12->Rloss = surface20->format->Rloss;
icculus@15
   932
    format12->Gloss = surface20->format->Gloss;
icculus@15
   933
    format12->Bloss = surface20->format->Bloss;
icculus@15
   934
    format12->Aloss = surface20->format->Aloss;
icculus@15
   935
    format12->Rshift = surface20->format->Rshift;
icculus@15
   936
    format12->Gshift = surface20->format->Gshift;
icculus@15
   937
    format12->Bshift = surface20->format->Bshift;
icculus@15
   938
    format12->Ashift = surface20->format->Ashift;
icculus@15
   939
    format12->Rmask = surface20->format->Rmask;
icculus@15
   940
    format12->Gmask = surface20->format->Gmask;
icculus@15
   941
    format12->Bmask = surface20->format->Bmask;
icculus@15
   942
    format12->Amask = surface20->format->Amask;
icculus@15
   943
    /* !!! FIXME: format12->colorkey; */
icculus@15
   944
    /* !!! FIXME: format12->alpha; */
icculus@15
   945
icculus@15
   946
    SDL_zerop(surface12);
icculus@15
   947
    flags = surface20->flags;
icculus@15
   948
    #define MAPSURFACEFLAGS(fl) { if (surface20->flags & SDL_##fl) { surface12->flags |= SDL12_##fl; flags &= ~SDL_##fl; } }
icculus@15
   949
    MAPSURFACEFLAGS(PREALLOC);
icculus@15
   950
    MAPSURFACEFLAGS(RLEACCEL);
icculus@15
   951
    MAPSURFACEFLAGS(DONTFREE);
icculus@15
   952
    #undef MAPSURFACEFLAGS
icculus@17
   953
    assert(flags == 0);  /* non-zero if there's a flag we didn't map. */
icculus@15
   954
icculus@15
   955
    surface12->format = format12;
icculus@15
   956
    surface12->w = surface20->w;
icculus@15
   957
    surface12->h = surface20->h;
icculus@15
   958
    surface12->pitch = (Uint16) surface20->pitch;  /* !!! FIXME: make sure this fits in a Uint16 */
icculus@15
   959
    surface12->pixels = surface20->pixels;
icculus@15
   960
    surface12->offset = 0;
icculus@15
   961
    surface12->hwdata = surface20;
icculus@15
   962
    SDL20_memcpy(&surface12->clip_rect, &surface20->clip_rect, sizeof (SDL_Rect));
icculus@15
   963
    surface12->refcount = surface20->refcount;
icculus@15
   964
icculus@15
   965
    return surface12;
icculus@15
   966
icculus@15
   967
failed:
icculus@15
   968
    SDL20_free(surface12);
icculus@15
   969
    SDL20_free(palette12);
icculus@15
   970
    SDL20_free(format12);
icculus@15
   971
    return NULL;
icculus@15
   972
}
icculus@15
   973
icculus@15
   974
SDL12_Surface *
icculus@15
   975
SDL_CreateRGBSurface(Uint32 sdl12flags, int width, int height, int depth, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
icculus@15
   976
{
icculus@15
   977
    SDL_Surface *surface20 = SDL20_CreateRGBSurface(0, width, height, depth, Rmask, Gmask, Bmask, Amask);
icculus@15
   978
    SDL12_Surface *surface12 = Surface20to12(surface20);
icculus@15
   979
    if (!surface12) {
icculus@15
   980
        SDL20_FreeSurface(surface20);
icculus@15
   981
        return NULL;
icculus@15
   982
    }
icculus@15
   983
icculus@17
   984
    assert(surface12->flags == 0);  // shouldn't have prealloc, rleaccel, or dontfree.
icculus@15
   985
    return surface12;
icculus@15
   986
}
icculus@15
   987
icculus@15
   988
SDL12_Surface *
icculus@15
   989
SDL_CreateRGBSurfaceFrom(void *pixels, int width, int height, int depth, int pitch, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
icculus@15
   990
{
icculus@15
   991
    SDL_Surface *surface20 = SDL20_CreateRGBSurfaceFrom(pixels, width, height, depth, Rmask, Gmask, Bmask, Amask);
icculus@15
   992
    SDL12_Surface *surface12 = Surface20to12(surface20);
icculus@15
   993
    if (!surface12) {
icculus@15
   994
        SDL20_FreeSurface(surface20);
icculus@15
   995
        return NULL;
icculus@15
   996
    }
icculus@15
   997
icculus@17
   998
    assert(surface12->flags == SDL12_PREALLOC);  // should _only_ have prealloc.
icculus@15
   999
    return surface12;
icculus@15
  1000
}
icculus@15
  1001
icculus@15
  1002
void SDL_FreeSurface(SDL12_Surface *surface12)
icculus@15
  1003
{
icculus@15
  1004
    if (surface12) {
icculus@15
  1005
        SDL20_FreeSurface((SDL_Surface *) surface12->hwdata);
icculus@15
  1006
        if (surface12->format) {
icculus@15
  1007
            SDL20_free(surface12->format->palette);
icculus@15
  1008
            SDL20_free(surface12->format);
icculus@15
  1009
        }
icculus@15
  1010
        SDL20_free(surface12);
icculus@15
  1011
    }
icculus@15
  1012
}
icculus@15
  1013
icculus@17
  1014
static SDL_PixelFormat *
icculus@17
  1015
PixelFormat12to20(SDL_PixelFormat *format20, SDL_Palette *palette20, SDL12_PixelFormat *format12)
icculus@17
  1016
{
icculus@17
  1017
    palette20->ncolors = format12->palette->ncolors;
icculus@17
  1018
    palette20->colors = format12->palette->colors;
icculus@17
  1019
    palette20->version = 1;
icculus@17
  1020
    palette20->refcount = 1;
icculus@17
  1021
    format20->format = SDL_MasksToPixelFormatEnum(format12->BitsPerPixel, format12->Rmask, format12->Gmask, format12->Bmask, format12->Amask);
icculus@17
  1022
    format20->palette = palette20;
icculus@17
  1023
    format20->BitsPerPixel = format12->BitsPerPixel;
icculus@17
  1024
    format20->BytesPerPixel = format12->BytesPerPixel;
icculus@17
  1025
    format20->Rmask = format12->Rmask;
icculus@17
  1026
    format20->Gmask = format12->Gmask;
icculus@17
  1027
    format20->Bmask = format12->Bmask;
icculus@17
  1028
    format20->Amask = format12->Amask;
icculus@17
  1029
    format20->Rloss = format12->Rloss;
icculus@17
  1030
    format20->Gloss = format12->Gloss;
icculus@17
  1031
    format20->Bloss = format12->Bloss;
icculus@17
  1032
    format20->Aloss = format12->Aloss;
icculus@17
  1033
    format20->Rshift = format12->Rshift;
icculus@17
  1034
    format20->Gshift = format12->Gshift;
icculus@17
  1035
    format20->Bshift = format12->Bshift;
icculus@17
  1036
    format20->Ashift = format12->Ashift;
icculus@17
  1037
    format20->refcount = 1;
icculus@17
  1038
    format20->next = NULL;
icculus@17
  1039
    return format20;
icculus@17
  1040
}
icculus@17
  1041
icculus@17
  1042
Uint32
icculus@17
  1043
SDL_MapRGB(const SDL12_PixelFormat *format12, Uint8 r, Uint8 g, Uint8 b)
icculus@17
  1044
{
icculus@17
  1045
    /* This is probably way slower than apps expect. */
icculus@17
  1046
    SDL_PixelFormat format20;
icculus@17
  1047
    SDL_Palette palette20;
icculus@17
  1048
    return SDL20_MapRGB(PixelFormat12to20(&format20, &palette20, format12), r, g, b);
icculus@17
  1049
}
icculus@17
  1050
icculus@17
  1051
Uint32
icculus@17
  1052
SDL_MapRGBA(const SDL12_PixelFormat *format12, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
icculus@17
  1053
{
icculus@17
  1054
    /* This is probably way slower than apps expect. */
icculus@17
  1055
    SDL_PixelFormat format20;
icculus@17
  1056
    SDL_Palette palette20;
icculus@17
  1057
    return SDL20_MapRGBA(PixelFormat12to20(&format20, &palette20, format12), r, g, b, a);
icculus@17
  1058
}
icculus@17
  1059
icculus@17
  1060
void
icculus@17
  1061
SDL_GetRGB(Uint32 pixel, const SDL12_PixelFormat *format12, Uint8 *r, Uint8 *g, Uint8 *b)
icculus@17
  1062
{
icculus@17
  1063
    /* This is probably way slower than apps expect. */
icculus@17
  1064
    SDL_PixelFormat format20;
icculus@17
  1065
    SDL_Palette palette20;
icculus@17
  1066
    return SDL20_GetRGB(pixel, PixelFormat12to20(&format20, &palette20, format12), r, g, b);
icculus@17
  1067
}
icculus@17
  1068
icculus@17
  1069
void
icculus@17
  1070
SDL_GetRGBA(Uint32 pixel, const SDL12_PixelFormat *format12, Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *a)
icculus@17
  1071
{
icculus@17
  1072
    /* This is probably way slower than apps expect. */
icculus@17
  1073
    SDL_PixelFormat format20;
icculus@17
  1074
    SDL_Palette palette20;
icculus@17
  1075
    return SDL20_GetRGB(pixel, PixelFormat12to20(&format20, &palette20, format12), r, g, b, a);
icculus@17
  1076
}
icculus@15
  1077
icculus@9
  1078
const SDL12_VideoInfo *
icculus@9
  1079
SDL_GetVideoInfo(void)
icculus@9
  1080
{
icculus@9
  1081
    SDL_DisplayMode mode;
icculus@9
  1082
icculus@17
  1083
    if (!VideoInfo.vfmt && SDL20_GetDesktopDisplayMode(VideoDisplayIndex, &mode) == 0) {
icculus@17
  1084
        VideoInfo.vfmt = SDL20_AllocFormat(mode.format);
icculus@17
  1085
        VideoInfo.current_w = mode.w;
icculus@17
  1086
        VideoInfo.current_h = mode.h;
icculus@9
  1087
        // !!! FIXME
icculus@17
  1088
        //VideoInfo.wm_available = 1;
icculus@17
  1089
        //VideoInfo.video_mem = 1024 * 256;
icculus@9
  1090
    }
icculus@17
  1091
    return &VideoInfo;
icculus@9
  1092
}
icculus@9
  1093
icculus@9
  1094
int
icculus@9
  1095
SDL_VideoModeOK(int width, int height, int bpp, Uint32 sdl12flags)
icculus@9
  1096
{
icculus@9
  1097
    int i, nummodes, actual_bpp = 0;
icculus@9
  1098
icculus@9
  1099
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@9
  1100
        return 0;
icculus@9
  1101
    }
icculus@9
  1102
icculus@9
  1103
    if (!(sdl12flags & SDL12_FULLSCREEN)) {
icculus@9
  1104
        SDL_DisplayMode mode;
icculus@16
  1105
        SDL20_GetDesktopDisplayMode(VideoDisplayIndex, &mode);
icculus@9
  1106
        return SDL_BITSPERPIXEL(mode.format);
icculus@9
  1107
    }
icculus@9
  1108
icculus@16
  1109
    nummodes = SDL20_GetNumDisplayModes(VideoDisplayIndex);
icculus@9
  1110
    for (i = 0; i < nummodes; ++i) {
icculus@9
  1111
        SDL_DisplayMode mode;
icculus@16
  1112
        SDL20_GetDisplayMode(VideoDisplayIndex, i, &mode);
icculus@9
  1113
        if (!mode.w || !mode.h || (width == mode.w && height == mode.h)) {
icculus@9
  1114
            if (!mode.format) {
icculus@9
  1115
                return bpp;
icculus@9
  1116
            }
icculus@9
  1117
            if (SDL_BITSPERPIXEL(mode.format) >= (Uint32) bpp) {
icculus@9
  1118
                actual_bpp = SDL_BITSPERPIXEL(mode.format);
icculus@9
  1119
            }
icculus@9
  1120
        }
icculus@9
  1121
    }
icculus@9
  1122
    return actual_bpp;
icculus@9
  1123
}
icculus@9
  1124
icculus@9
  1125
SDL_Rect **
icculus@17
  1126
SDL_ListModes(const SDL12_PixelFormat *format, Uint32 flags)
icculus@9
  1127
{
icculus@9
  1128
    int i, nmodes;
icculus@9
  1129
    SDL_Rect **modes;
icculus@9
  1130
icculus@9
  1131
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@9
  1132
        return NULL;
icculus@9
  1133
    }
icculus@9
  1134
icculus@9
  1135
    if (!(flags & SDL12_FULLSCREEN)) {
icculus@9
  1136
        return (SDL_Rect **) (-1);
icculus@9
  1137
    }
icculus@9
  1138
icculus@9
  1139
    if (!format) {
icculus@17
  1140
        format = VideoInfo.vfmt;
icculus@9
  1141
    }
icculus@9
  1142
icculus@17
  1143
    /* !!! FIXME: Memory leak */
icculus@9
  1144
    nmodes = 0;
icculus@9
  1145
    modes = NULL;
icculus@16
  1146
    for (i = 0; i < SDL20_GetNumDisplayModes(VideoDisplayIndex); ++i) {
icculus@9
  1147
        SDL_DisplayMode mode;
icculus@9
  1148
        int bpp;
icculus@9
  1149
icculus@16
  1150
        SDL20_GetDisplayMode(VideoDisplayIndex, i, &mode);
icculus@9
  1151
        if (!mode.w || !mode.h) {
icculus@9
  1152
            return (SDL_Rect **) (-1);
icculus@9
  1153
        }
icculus@9
  1154
        
icculus@9
  1155
        /* Copied from src/video/SDL_pixels.c:SDL_PixelFormatEnumToMasks */
icculus@9
  1156
        if (SDL_BYTESPERPIXEL(mode.format) <= 2) {
icculus@9
  1157
            bpp = SDL_BITSPERPIXEL(mode.format);
icculus@9
  1158
        } else {
icculus@9
  1159
            bpp = SDL_BYTESPERPIXEL(mode.format) * 8;
icculus@9
  1160
        }
icculus@9
  1161
icculus@9
  1162
        if (bpp != format->BitsPerPixel) {
icculus@9
  1163
            continue;
icculus@9
  1164
        }
icculus@9
  1165
        if (nmodes > 0 && modes[nmodes - 1]->w == mode.w
icculus@9
  1166
            && modes[nmodes - 1]->h == mode.h) {
icculus@9
  1167
            continue;
icculus@9
  1168
        }
icculus@9
  1169
icculus@17
  1170
        modes = SDL20_realloc(modes, (nmodes + 2) * sizeof(*modes));
icculus@9
  1171
        if (!modes) {
icculus@9
  1172
            return NULL;
icculus@9
  1173
        }
icculus@17
  1174
        modes[nmodes] = (SDL_Rect *) SDL20_malloc(sizeof(SDL_Rect));
icculus@9
  1175
        if (!modes[nmodes]) {
icculus@9
  1176
            return NULL;
icculus@9
  1177
        }
icculus@9
  1178
        modes[nmodes]->x = 0;
icculus@9
  1179
        modes[nmodes]->y = 0;
icculus@9
  1180
        modes[nmodes]->w = mode.w;
icculus@9
  1181
        modes[nmodes]->h = mode.h;
icculus@9
  1182
        ++nmodes;
icculus@9
  1183
    }
icculus@9
  1184
    if (modes) {
icculus@9
  1185
        modes[nmodes] = NULL;
icculus@9
  1186
    }
icculus@9
  1187
    return modes;
icculus@9
  1188
}
icculus@9
  1189
icculus@9
  1190
static void
icculus@9
  1191
GetEnvironmentWindowPosition(int w, int h, int *x, int *y)
icculus@9
  1192
{
icculus@16
  1193
    int display = VideoDisplayIndex;
icculus@9
  1194
    const char *window = SDL_getenv("SDL_VIDEO_WINDOW_POS");
icculus@9
  1195
    const char *center = SDL_getenv("SDL_VIDEO_CENTERED");
icculus@9
  1196
    if (window) {
icculus@9
  1197
        if (SDL_sscanf(window, "%d,%d", x, y) == 2) {
icculus@9
  1198
            return;
icculus@9
  1199
        }
icculus@9
  1200
        if (SDL_strcmp(window, "center") == 0) {
icculus@9
  1201
            center = window;
icculus@9
  1202
        }
icculus@9
  1203
    }
icculus@9
  1204
    if (center) {
icculus@9
  1205
        *x = SDL_WINDOWPOS_CENTERED_DISPLAY(display);
icculus@9
  1206
        *y = SDL_WINDOWPOS_CENTERED_DISPLAY(display);
icculus@9
  1207
    }
icculus@9
  1208
}
icculus@9
  1209
icculus@9
  1210
static void
icculus@9
  1211
ClearVideoSurface()
icculus@9
  1212
{
icculus@16
  1213
    if (ShadowSurface) {
icculus@17
  1214
        SDL20_FillRect(ShadowSurface, NULL,
icculus@17
  1215
            SDL20_MapRGB(ShadowSurface->format, 0, 0, 0));
icculus@9
  1216
    }
icculus@17
  1217
    SDL20_FillRect(WindowSurface, NULL, 0);
icculus@19
  1218
    SDL20_UpdateWindowSurface(VideoWindow20);
icculus@9
  1219
}
icculus@9
  1220
icculus@9
  1221
static void
icculus@19
  1222
SetupScreenSaver(int flags12)
icculus@9
  1223
{
icculus@9
  1224
    const char *env;
icculus@9
  1225
    SDL_bool allow_screensaver;
icculus@9
  1226
icculus@9
  1227
    /* Allow environment override of screensaver disable */
icculus@9
  1228
    env = SDL_getenv("SDL_VIDEO_ALLOW_SCREENSAVER");
icculus@9
  1229
    if (env) {
icculus@9
  1230
        allow_screensaver = SDL_atoi(env) ? SDL_TRUE : SDL_FALSE;
icculus@19
  1231
    } else if (flags12 & SDL12_FULLSCREEN) {
icculus@9
  1232
        allow_screensaver = SDL_FALSE;
icculus@9
  1233
    } else {
icculus@9
  1234
        allow_screensaver = SDL_TRUE;
icculus@9
  1235
    }
icculus@9
  1236
    if (allow_screensaver) {
icculus@17
  1237
        SDL20_EnableScreenSaver();
icculus@9
  1238
    } else {
icculus@17
  1239
        SDL20_DisableScreenSaver();
icculus@9
  1240
    }
icculus@9
  1241
}
icculus@9
  1242
icculus@9
  1243
static int
icculus@19
  1244
ResizeVideoMode(int width, int height, int bpp, Uint32 flags12)
icculus@9
  1245
{
icculus@9
  1246
    int w, h;
icculus@9
  1247
icculus@9
  1248
    /* We can't resize something we don't have... */
icculus@16
  1249
    if (!VideoSurface) {
icculus@9
  1250
        return -1;
icculus@9
  1251
    }
icculus@9
  1252
icculus@9
  1253
    /* We probably have to recreate the window in fullscreen mode */
icculus@19
  1254
    if (flags12 & SDL12_FULLSCREEN) {
icculus@9
  1255
        return -1;
icculus@9
  1256
    }
icculus@9
  1257
icculus@9
  1258
    /* I don't think there's any change we can gracefully make in flags */
icculus@19
  1259
    if (flags12 != VideoFlags) {
icculus@9
  1260
        return -1;
icculus@9
  1261
    }
icculus@16
  1262
    if (bpp != VideoSurface->format->BitsPerPixel) {
icculus@9
  1263
        return -1;
icculus@9
  1264
    }
icculus@9
  1265
icculus@9
  1266
    /* Resize the window */
icculus@19
  1267
    SDL20_GetWindowSize(VideoWindow20, &w, &h);
icculus@9
  1268
    if (w != width || h != height) {
icculus@19
  1269
        SDL20_SetWindowSize(VideoWindow20, width, height);
icculus@9
  1270
    }
icculus@9
  1271
icculus@9
  1272
    /* If we're in OpenGL mode, just resize the stub surface and we're done! */
icculus@19
  1273
    if (flags12 & SDL12_OPENGL) {
icculus@16
  1274
        VideoSurface->w = width;
icculus@16
  1275
        VideoSurface->h = height;
icculus@9
  1276
        return 0;
icculus@9
  1277
    }
icculus@9
  1278
icculus@19
  1279
    WindowSurface = SDL20_GetWindowSurface(VideoWindow20);
icculus@16
  1280
    if (!WindowSurface) {
icculus@9
  1281
        return -1;
icculus@9
  1282
    }
icculus@16
  1283
    if (VideoSurface->format != WindowSurface->format) {
icculus@9
  1284
        return -1;
icculus@9
  1285
    }
icculus@16
  1286
    VideoSurface->w = width;
icculus@16
  1287
    VideoSurface->h = height;
icculus@16
  1288
    VideoSurface->pixels = WindowSurface->pixels;
icculus@16
  1289
    VideoSurface->pitch = WindowSurface->pitch;
icculus@19
  1290
    SDL20_SetClipRect(VideoSurface, NULL);
icculus@9
  1291
icculus@16
  1292
    if (ShadowSurface) {
icculus@16
  1293
        ShadowSurface->w = width;
icculus@16
  1294
        ShadowSurface->h = height;
icculus@19
  1295
        ShadowSurface->pitch = SDL20_CalculatePitch(ShadowSurface);
icculus@16
  1296
        ShadowSurface->pixels =
icculus@19
  1297
            SDL20_realloc(ShadowSurface->pixels,
icculus@16
  1298
                        ShadowSurface->h * ShadowSurface->pitch);
icculus@19
  1299
        SDL20_SetClipRect(ShadowSurface, NULL);
icculus@19
  1300
        SDL20_InvalidateMap(ShadowSurface->map);
icculus@9
  1301
    } else {
icculus@16
  1302
        PublicSurface = VideoSurface;
icculus@9
  1303
    }
icculus@9
  1304
icculus@9
  1305
    ClearVideoSurface();
icculus@9
  1306
icculus@9
  1307
    return 0;
icculus@9
  1308
}
icculus@9
  1309
icculus@9
  1310
SDL_Surface *
icculus@19
  1311
SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags12)
icculus@9
  1312
{
icculus@9
  1313
    SDL_DisplayMode desktop_mode;
icculus@16
  1314
    int display = VideoDisplayIndex;
icculus@9
  1315
    int window_x = SDL_WINDOWPOS_UNDEFINED_DISPLAY(display);
icculus@9
  1316
    int window_y = SDL_WINDOWPOS_UNDEFINED_DISPLAY(display);
icculus@9
  1317
    int window_w;
icculus@9
  1318
    int window_h;
icculus@19
  1319
    Uint32 window_flags20;
icculus@19
  1320
    Uint32 surface_flags12;
icculus@19
  1321
icculus@19
  1322
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@19
  1323
        if (SDL_Init(SDL12_INIT_VIDEO | SDL12_INIT_NOPARACHUTE) < 0) {
icculus@9
  1324
            return NULL;
icculus@9
  1325
        }
icculus@9
  1326
    }
icculus@9
  1327
icculus@19
  1328
    SDL20_GetDesktopDisplayMode(display, &desktop_mode);
icculus@9
  1329
icculus@9
  1330
    if (width == 0) {
icculus@9
  1331
        width = desktop_mode.w;
icculus@9
  1332
    }
icculus@9
  1333
    if (height == 0) {
icculus@9
  1334
        height = desktop_mode.h;
icculus@9
  1335
    }
icculus@9
  1336
    if (bpp == 0) {
icculus@9
  1337
        bpp = SDL_BITSPERPIXEL(desktop_mode.format);
icculus@9
  1338
    }
icculus@9
  1339
icculus@9
  1340
    /* See if we can simply resize the existing window and surface */
icculus@19
  1341
    if (ResizeVideoMode(width, height, bpp, flags12) == 0) {
icculus@16
  1342
        return PublicSurface;
icculus@9
  1343
    }
icculus@9
  1344
icculus@9
  1345
    /* Destroy existing window */
icculus@16
  1346
    PublicSurface = NULL;
icculus@16
  1347
    if (ShadowSurface) {
icculus@16
  1348
        ShadowSurface->flags &= ~SDL_DONTFREE;
icculus@19
  1349
        SDL20_FreeSurface(ShadowSurface);
icculus@16
  1350
        ShadowSurface = NULL;
icculus@9
  1351
    }
icculus@16
  1352
    if (VideoSurface) {
icculus@16
  1353
        VideoSurface->flags &= ~SDL_DONTFREE;
icculus@19
  1354
        SDL20_FreeSurface(VideoSurface);
icculus@16
  1355
        VideoSurface = NULL;
icculus@9
  1356
    }
icculus@16
  1357
    if (VideoContext) {
icculus@9
  1358
        /* SDL_GL_MakeCurrent(0, NULL); *//* Doesn't do anything */
icculus@19
  1359
        SDL20_GL_DeleteContext(VideoContext);
icculus@16
  1360
        VideoContext = NULL;
icculus@9
  1361
    }
icculus@19
  1362
    if (VideoWindow20) {
icculus@19
  1363
        SDL20_GetWindowPosition(VideoWindow20, &window_x, &window_y);
icculus@19
  1364
        SDL20_DestroyWindow(VideoWindow20);
icculus@9
  1365
    }
icculus@9
  1366
icculus@19
  1367
    /* Create a new window */
icculus@19
  1368
    window_flags20 = SDL_WINDOW_SHOWN;
icculus@19
  1369
    if (flags12 & SDL12_FULLSCREEN) {
icculus@19
  1370
        window_flags20 |= SDL_WINDOW_FULLSCREEN;
icculus@9
  1371
    }
icculus@19
  1372
    if (flags12 & SDL12_OPENGL) {
icculus@19
  1373
        window_flags20 |= SDL_WINDOW_OPENGL;
icculus@9
  1374
    }
icculus@19
  1375
    if (flags12 & SDL12_RESIZABLE) {
icculus@19
  1376
        window_flags20 |= SDL_WINDOW_RESIZABLE;
icculus@9
  1377
    }
icculus@19
  1378
    if (flags12 & SDL12_NOFRAME) {
icculus@19
  1379
        window_flags20 |= SDL_WINDOW_BORDERLESS;
icculus@9
  1380
    }
icculus@9
  1381
    GetEnvironmentWindowPosition(width, height, &window_x, &window_y);
icculus@19
  1382
    VideoWindow20 =
icculus@19
  1383
        SDL20_CreateWindow(WindowTitle, window_x, window_y, width, height,
icculus@19
  1384
                         window_flags20);
icculus@19
  1385
    if (!VideoWindow20) {
icculus@9
  1386
        return NULL;
icculus@9
  1387
    }
icculus@19
  1388
    SDL20_SetWindowIcon(VideoWindow20, VideoIcon);
icculus@19
  1389
icculus@19
  1390
    SetupScreenSaver(flags12);
icculus@19
  1391
icculus@19
  1392
    window_flags20 = SDL_GetWindowFlags(VideoWindow20);
icculus@19
  1393
    surface_flags12 = 0;
icculus@19
  1394
    if (window_flags20 & SDL_WINDOW_FULLSCREEN) {
icculus@19
  1395
        surface_flags12 |= SDL_FULLSCREEN;
icculus@9
  1396
    }
icculus@19
  1397
    if ((window_flags & SDL_WINDOW_OPENGL) && (flags12 & SDL_OPENGL)) {
icculus@19
  1398
        surface_flags12 |= SDL_OPENGL;
icculus@9
  1399
    }
icculus@9
  1400
    if (window_flags & SDL_WINDOW_RESIZABLE) {
icculus@19
  1401
        surface_flags12 |= SDL_RESIZABLE;
icculus@9
  1402
    }
icculus@9
  1403
    if (window_flags & SDL_WINDOW_BORDERLESS) {
icculus@19
  1404
        surface_flags12 |= SDL_NOFRAME;
icculus@9
  1405
    }
icculus@9
  1406
icculus@19
  1407
    VideoFlags = flags12;
icculus@9
  1408
icculus@9
  1409
    /* If we're in OpenGL mode, just create a stub surface and we're done! */
icculus@19
  1410
    if (flags12 & SDL_OPENGL) {
icculus@19
  1411
        VideoContext = SDL_GL_CreateContext(VideoWindow20);
icculus@16
  1412
        if (!VideoContext) {
icculus@9
  1413
            return NULL;
icculus@9
  1414
        }
icculus@19
  1415
        if (SDL_GL_MakeCurrent(VideoWindow20, VideoContext) < 0) {
icculus@9
  1416
            return NULL;
icculus@9
  1417
        }
icculus@16
  1418
        VideoSurface =
icculus@9
  1419
            SDL_CreateRGBSurfaceFrom(NULL, width, height, bpp, 0, 0, 0, 0, 0);
icculus@16
  1420
        if (!VideoSurface) {
icculus@9
  1421
            return NULL;
icculus@9
  1422
        }
icculus@19
  1423
        VideoSurface->flags |= surface_flags12;
icculus@16
  1424
        PublicSurface = VideoSurface;
icculus@16
  1425
        return PublicSurface;
icculus@9
  1426
    }
icculus@9
  1427
icculus@9
  1428
    /* Create the screen surface */
icculus@19
  1429
    WindowSurface = SDL_GetWindowSurface(VideoWindow20);
icculus@16
  1430
    if (!WindowSurface) {
icculus@9
  1431
        return NULL;
icculus@9
  1432
    }
icculus@9
  1433
icculus@9
  1434
    /* Center the public surface in the window surface */
icculus@19
  1435
    SDL_GetWindowSize(VideoWindow20, &window_w, &window_h);
icculus@16
  1436
    VideoViewport.x = (window_w - width)/2;
icculus@16
  1437
    VideoViewport.y = (window_h - height)/2;
icculus@16
  1438
    VideoViewport.w = width;
icculus@16
  1439
    VideoViewport.h = height;
icculus@9
  1440
icculus@16
  1441
    VideoSurface = SDL_CreateRGBSurfaceFrom(NULL, 0, 0, 32, 0, 0, 0, 0, 0);
icculus@19
  1442
    VideoSurface->flags |= surface_flags12;
icculus@19
  1443
    VideoSurface->flags |= SDL12_DONTFREE;
icculus@16
  1444
    SDL_FreeFormat(VideoSurface->format);
icculus@16
  1445
    VideoSurface->format = WindowSurface->format;
icculus@16
  1446
    VideoSurface->format->refcount++;
icculus@16
  1447
    VideoSurface->w = width;
icculus@16
  1448
    VideoSurface->h = height;
icculus@16
  1449
    VideoSurface->pitch = WindowSurface->pitch;
icculus@16
  1450
    VideoSurface->pixels = (void *)((Uint8 *)WindowSurface->pixels +
icculus@16
  1451
        VideoViewport.y * VideoSurface->pitch +
icculus@16
  1452
        VideoViewport.x  * VideoSurface->format->BytesPerPixel);
icculus@16
  1453
    SDL_SetClipRect(VideoSurface, NULL);
icculus@9
  1454
icculus@9
  1455
    /* Create a shadow surface if necessary */
icculus@16
  1456
    if ((bpp != VideoSurface->format->BitsPerPixel)
icculus@19
  1457
        && !(flags12 & SDL12_ANYFORMAT)) {
icculus@16
  1458
        ShadowSurface =
icculus@9
  1459
            SDL_CreateRGBSurface(0, width, height, bpp, 0, 0, 0, 0);
icculus@16
  1460
        if (!ShadowSurface) {
icculus@9
  1461
            return NULL;
icculus@9
  1462
        }
icculus@19
  1463
        ShadowSurface->flags |= surface_flags12;
icculus@19
  1464
        ShadowSurface->flags |= SDL12_DONTFREE;
icculus@9
  1465
icculus@16
  1466
        /* 8-bit ShadowSurface surfaces report that they have exclusive palette */
icculus@16
  1467
        if (ShadowSurface->format->palette) {
icculus@19
  1468
            ShadowSurface->flags |= SDL12_HWPALETTE;
icculus@16
  1469
            SDL_DitherColors(ShadowSurface->format->palette->colors,
icculus@16
  1470
                             ShadowSurface->format->BitsPerPixel);
icculus@9
  1471
        }
icculus@16
  1472
        SDL_FillRect(ShadowSurface, NULL,
icculus@16
  1473
            SDL_MapRGB(ShadowSurface->format, 0, 0, 0));
icculus@9
  1474
    }
icculus@16
  1475
    PublicSurface =
icculus@16
  1476
        (ShadowSurface ? ShadowSurface : VideoSurface);
icculus@9
  1477
icculus@9
  1478
    ClearVideoSurface();
icculus@9
  1479
icculus@9
  1480
    /* We're finally done! */
icculus@16
  1481
    return PublicSurface;
icculus@9
  1482
}
icculus@9
  1483
icculus@9
  1484
SDL_Surface *
icculus@9
  1485
SDL_GetVideoSurface(void)
icculus@9
  1486
{
icculus@16
  1487
    return PublicSurface;
icculus@9
  1488
}
icculus@9
  1489
icculus@9
  1490
int
icculus@9
  1491
SDL_SetAlpha(SDL_Surface * surface, Uint32 flag, Uint8 value)
icculus@9
  1492
{
icculus@9
  1493
    if (flag & SDL_SRCALPHA) {
icculus@9
  1494
        /* According to the docs, value is ignored for alpha surfaces */
icculus@9
  1495
        if (surface->format->Amask) {
icculus@9
  1496
            value = 0xFF;
icculus@9
  1497
        }
icculus@9
  1498
        SDL_SetSurfaceAlphaMod(surface, value);
icculus@9
  1499
        SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_BLEND);
icculus@9
  1500
    } else {
icculus@9
  1501
        SDL_SetSurfaceAlphaMod(surface, 0xFF);
icculus@9
  1502
        SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_NONE);
icculus@9
  1503
    }
icculus@9
  1504
    SDL_SetSurfaceRLE(surface, (flag & SDL_RLEACCEL));
icculus@9
  1505
icculus@9
  1506
    return 0;
icculus@9
  1507
}
icculus@9
  1508
icculus@19
  1509
SDL12_Surface *
icculus@19
  1510
SDL_DisplayFormat(SDL12_Surface *surface12)
icculus@9
  1511
{
icculus@19
  1512
    SDL12_PixelFormat *format;
icculus@9
  1513
icculus@16
  1514
    if (!PublicSurface) {
icculus@19
  1515
        SDL20_SetError("No video mode has been set");
icculus@9
  1516
        return NULL;
icculus@9
  1517
    }
icculus@16
  1518
    format = PublicSurface->format;
icculus@9
  1519
icculus@9
  1520
    /* Set the flags appropriate for copying to display surface */
icculus@19
  1521
    return SDL_ConvertSurface(surface, format, SDL12_RLEACCEL);
icculus@9
  1522
}
icculus@9
  1523
icculus@19
  1524
SDL12_Surface *
icculus@19
  1525
SDL_DisplayFormatAlpha(SDL12_Surface *surface)
icculus@9
  1526
{
icculus@9
  1527
    SDL_PixelFormat *vf;
icculus@9
  1528
    SDL_PixelFormat *format;
icculus@9
  1529
    SDL_Surface *converted;
icculus@9
  1530
    /* default to ARGB8888 */
icculus@9
  1531
    Uint32 amask = 0xff000000;
icculus@9
  1532
    Uint32 rmask = 0x00ff0000;
icculus@9
  1533
    Uint32 gmask = 0x0000ff00;
icculus@9
  1534
    Uint32 bmask = 0x000000ff;
icculus@9
  1535
icculus@16
  1536
    if (!PublicSurface) {
icculus@9
  1537
        SDL_SetError("No video mode has been set");
icculus@9
  1538
        return NULL;
icculus@9
  1539
    }
icculus@16
  1540
    vf = PublicSurface->format;
icculus@9
  1541
icculus@9
  1542
    switch (vf->BytesPerPixel) {
icculus@9
  1543
    case 2:
icculus@9
  1544
        /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}.
icculus@9
  1545
           For anything else (like ARGB4444) it doesn't matter
icculus@9
  1546
           since we have no special code for it anyway */
icculus@9
  1547
        if ((vf->Rmask == 0x1f) &&
icculus@9
  1548
            (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) {
icculus@9
  1549
            rmask = 0xff;
icculus@9
  1550
            bmask = 0xff0000;
icculus@9
  1551
        }
icculus@9
  1552
        break;
icculus@9
  1553
icculus@9
  1554
    case 3:
icculus@9
  1555
    case 4:
icculus@9
  1556
        /* Keep the video format, as long as the high 8 bits are
icculus@9
  1557
           unused or alpha */
icculus@9
  1558
        if ((vf->Rmask == 0xff) && (vf->Bmask == 0xff0000)) {
icculus@9
  1559
            rmask = 0xff;
icculus@9
  1560
            bmask = 0xff0000;
icculus@9
  1561
        }
icculus@9
  1562
        break;
icculus@9
  1563
icculus@9
  1564
    default:
icculus@9
  1565
        /* We have no other optimised formats right now. When/if a new
icculus@9
  1566
           optimised alpha format is written, add the converter here */
icculus@9
  1567
        break;
icculus@9
  1568
    }
icculus@9
  1569
    format = SDL_AllocFormat(SDL_MasksToPixelFormatEnum(32, rmask,
icculus@9
  1570
                                                            gmask,
icculus@9
  1571
                                                            bmask,
icculus@9
  1572
                                                            amask));
icculus@9
  1573
    if (!format) {
icculus@9
  1574
        return NULL;
icculus@9
  1575
    }
icculus@9
  1576
    converted = SDL_ConvertSurface(surface, format, SDL_RLEACCEL);
icculus@9
  1577
    SDL_FreeFormat(format);
icculus@9
  1578
    return converted;
icculus@9
  1579
}
icculus@9
  1580
icculus@9
  1581
int
icculus@9
  1582
SDL_Flip(SDL_Surface * screen)
icculus@9
  1583
{
icculus@9
  1584
    SDL_UpdateRect(screen, 0, 0, 0, 0);
icculus@9
  1585
    return 0;
icculus@9
  1586
}
icculus@9
  1587
icculus@9
  1588
void
icculus@9
  1589
SDL_UpdateRect(SDL_Surface * screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h)
icculus@9
  1590
{
icculus@9
  1591
    if (screen) {
icculus@9
  1592
        SDL_Rect rect;
icculus@9
  1593
icculus@9
  1594
        /* Fill the rectangle */
icculus@9
  1595
        rect.x = (int) x;
icculus@9
  1596
        rect.y = (int) y;
icculus@9
  1597
        rect.w = (int) (w ? w : screen->w);
icculus@9
  1598
        rect.h = (int) (h ? h : screen->h);
icculus@9
  1599
        SDL_UpdateRects(screen, 1, &rect);
icculus@9
  1600
    }
icculus@9
  1601
}
icculus@9
  1602
icculus@9
  1603
void
icculus@9
  1604
SDL_UpdateRects(SDL_Surface * screen, int numrects, SDL_Rect * rects)
icculus@9
  1605
{
icculus@9
  1606
    int i;
icculus@9
  1607
icculus@16
  1608
    if (screen == ShadowSurface) {
icculus@9
  1609
        for (i = 0; i < numrects; ++i) {
icculus@16
  1610
            SDL_BlitSurface(ShadowSurface, &rects[i], VideoSurface,
icculus@9
  1611
                            &rects[i]);
icculus@9
  1612
        }
icculus@9
  1613
icculus@9
  1614
        /* Fall through to video surface update */
icculus@16
  1615
        screen = VideoSurface;
icculus@9
  1616
    }
icculus@16
  1617
    if (screen == VideoSurface) {
icculus@16
  1618
        if (VideoViewport.x || VideoViewport.y) {
icculus@9
  1619
            SDL_Rect *stackrects = SDL_stack_alloc(SDL_Rect, numrects);
icculus@9
  1620
            SDL_Rect *stackrect;
icculus@9
  1621
            const SDL_Rect *rect;
icculus@9
  1622
            
icculus@9
  1623
            /* Offset all the rectangles before updating */
icculus@9
  1624
            for (i = 0; i < numrects; ++i) {
icculus@9
  1625
                rect = &rects[i];
icculus@9
  1626
                stackrect = &stackrects[i];
icculus@16
  1627
                stackrect->x = VideoViewport.x + rect->x;
icculus@16
  1628
                stackrect->y = VideoViewport.y + rect->y;
icculus@9
  1629
                stackrect->w = rect->w;
icculus@9
  1630
                stackrect->h = rect->h;
icculus@9
  1631
            }
icculus@19
  1632
            SDL_UpdateWindowSurfaceRects(VideoWindow20, stackrects, numrects);
icculus@9
  1633
            SDL_stack_free(stackrects);
icculus@9
  1634
        } else {
icculus@19
  1635
            SDL_UpdateWindowSurfaceRects(VideoWindow20, rects, numrects);
icculus@9
  1636
        }
icculus@9
  1637
    }
icculus@9
  1638
}
icculus@9
  1639
icculus@9
  1640
void
icculus@9
  1641
SDL_WM_SetCaption(const char *title, const char *icon)
icculus@9
  1642
{
icculus@16
  1643
    if (WindowTitle) {
icculus@16
  1644
        SDL_free(WindowTitle);
icculus@9
  1645
    }
icculus@16
  1646
    if (WindowIconTitle) {
icculus@16
  1647
        SDL_free(WindowIconTitle);
icculus@9
  1648
    }
icculus@16
  1649
    WindowTitle = title ? SDL_strdup(title) : NULL;
icculus@16
  1650
    WindowIconTitle = icon ? SDL_strdup(icon) : NULL;
icculus@19
  1651
    SDL_SetWindowTitle(VideoWindow20, WindowTitle);
icculus@9
  1652
}
icculus@9
  1653
icculus@9
  1654
void
icculus@9
  1655
SDL_WM_GetCaption(const char **title, const char **icon)
icculus@9
  1656
{
icculus@9
  1657
    if (title) {
icculus@16
  1658
        *title = WindowTitle;
icculus@9
  1659
    }
icculus@9
  1660
    if (icon) {
icculus@16
  1661
        *icon = WindowIconTitle;
icculus@9
  1662
    }
icculus@9
  1663
}
icculus@9
  1664
icculus@9
  1665
void
icculus@9
  1666
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
icculus@9
  1667
{
icculus@9
  1668
    // !!! FIXME: free previous icon?
icculus@16
  1669
    VideoIcon = icon;
icculus@16
  1670
    ++VideoIcon->refcount;
icculus@9
  1671
}
icculus@9
  1672
icculus@9
  1673
int
icculus@9
  1674
SDL_WM_IconifyWindow(void)
icculus@9
  1675
{
icculus@19
  1676
    SDL_MinimizeWindow(VideoWindow20);
icculus@9
  1677
    return 0;
icculus@9
  1678
}
icculus@9
  1679
icculus@9
  1680
int
icculus@9
  1681
SDL_WM_ToggleFullScreen(SDL_Surface * surface)
icculus@9
  1682
{
icculus@9
  1683
    int length;
icculus@9
  1684
    void *pixels;
icculus@9
  1685
    Uint8 *src, *dst;
icculus@9
  1686
    int row;
icculus@9
  1687
    int window_w;
icculus@9
  1688
    int window_h;
icculus@9
  1689
icculus@16
  1690
    if (!PublicSurface) {
icculus@9
  1691
        SDL_SetError("SDL_SetVideoMode() hasn't been called");
icculus@9
  1692
        return 0;
icculus@9
  1693
    }
icculus@9
  1694
icculus@9
  1695
    /* Copy the old bits out */
icculus@16
  1696
    length = PublicSurface->w * PublicSurface->format->BytesPerPixel;
icculus@16
  1697
    pixels = SDL_malloc(PublicSurface->h * length);
icculus@16
  1698
    if (pixels && PublicSurface->pixels) {
icculus@16
  1699
        src = (Uint8*)PublicSurface->pixels;
icculus@9
  1700
        dst = (Uint8*)pixels;
icculus@16
  1701
        for (row = 0; row < PublicSurface->h; ++row) {
icculus@9
  1702
            SDL_memcpy(dst, src, length);
icculus@16
  1703
            src += PublicSurface->pitch;
icculus@9
  1704
            dst += length;
icculus@9
  1705
        }
icculus@9
  1706
    }
icculus@9
  1707
icculus@9
  1708
    /* Do the physical mode switch */
icculus@19
  1709
    if (SDL_GetWindowFlags(VideoWindow20) & SDL_WINDOW_FULLSCREEN) {
icculus@19
  1710
        if (SDL_SetWindowFullscreen(VideoWindow20, 0) < 0) {
icculus@9
  1711
            return 0;
icculus@9
  1712
        }
icculus@16
  1713
        PublicSurface->flags &= ~SDL_FULLSCREEN;
icculus@9
  1714
    } else {
icculus@19
  1715
        if (SDL_SetWindowFullscreen(VideoWindow20, 1) < 0) {
icculus@9
  1716
            return 0;
icculus@9
  1717
        }
icculus@16
  1718
        PublicSurface->flags |= SDL_FULLSCREEN;
icculus@9
  1719
    }
icculus@9
  1720
icculus@9
  1721
    /* Recreate the screen surface */
icculus@19
  1722
    WindowSurface = SDL_GetWindowSurface(VideoWindow20);
icculus@16
  1723
    if (!WindowSurface) {
icculus@9
  1724
        /* We're totally hosed... */
icculus@9
  1725
        return 0;
icculus@9
  1726
    }
icculus@9
  1727
icculus@9
  1728
    /* Center the public surface in the window surface */
icculus@19
  1729
    SDL_GetWindowSize(VideoWindow20, &window_w, &window_h);
icculus@16
  1730
    VideoViewport.x = (window_w - VideoSurface->w)/2;
icculus@16
  1731
    VideoViewport.y = (window_h - VideoSurface->h)/2;
icculus@16
  1732
    VideoViewport.w = VideoSurface->w;
icculus@16
  1733
    VideoViewport.h = VideoSurface->h;
icculus@9
  1734
icculus@9
  1735
    /* Do some shuffling behind the application's back if format changes */
icculus@16
  1736
    if (VideoSurface->format->format != WindowSurface->format->format) {
icculus@16
  1737
        if (ShadowSurface) {
icculus@16
  1738
            if (ShadowSurface->format->format == WindowSurface->format->format) {
icculus@9
  1739
                /* Whee!  We don't need a shadow surface anymore! */
icculus@16
  1740
                VideoSurface->flags &= ~SDL_DONTFREE;
icculus@16
  1741
                SDL_FreeSurface(VideoSurface);
icculus@16
  1742
                SDL_free(ShadowSurface->pixels);
icculus@16
  1743
                VideoSurface = ShadowSurface;
icculus@16
  1744
                VideoSurface->flags |= SDL_PREALLOC;
icculus@16
  1745
                ShadowSurface = NULL;
icculus@9
  1746
            } else {
icculus@9
  1747
                /* No problem, just change the video surface format */
icculus@16
  1748
                SDL_FreeFormat(VideoSurface->format);
icculus@16
  1749
                VideoSurface->format = WindowSurface->format;
icculus@16
  1750
                VideoSurface->format->refcount++;
icculus@16
  1751
                SDL_InvalidateMap(ShadowSurface->map);
icculus@9
  1752
            }
icculus@9
  1753
        } else {
icculus@9
  1754
            /* We can make the video surface the shadow surface */
icculus@16
  1755
            ShadowSurface = VideoSurface;
icculus@16
  1756
            ShadowSurface->pitch = SDL_CalculatePitch(ShadowSurface);
icculus@16
  1757
            ShadowSurface->pixels = SDL_malloc(ShadowSurface->h * ShadowSurface->pitch);
icculus@16
  1758
            if (!ShadowSurface->pixels) {
icculus@9
  1759
                /* Uh oh, we're hosed */
icculus@16
  1760
                ShadowSurface = NULL;
icculus@9
  1761
                return 0;
icculus@9
  1762
            }
icculus@16
  1763
            ShadowSurface->flags &= ~SDL_PREALLOC;
icculus@9
  1764
icculus@16
  1765
            VideoSurface = SDL_CreateRGBSurfaceFrom(NULL, 0, 0, 32, 0, 0, 0, 0, 0);
icculus@16
  1766
            VideoSurface->flags = ShadowSurface->flags;
icculus@16
  1767
            VideoSurface->flags |= SDL_PREALLOC;
icculus@16
  1768
            SDL_FreeFormat(VideoSurface->format);
icculus@16
  1769
            VideoSurface->format = WindowSurface->format;
icculus@16
  1770
            VideoSurface->format->refcount++;
icculus@16
  1771
            VideoSurface->w = ShadowSurface->w;
icculus@16
  1772
            VideoSurface->h = ShadowSurface->h;
icculus@9
  1773
        }
icculus@9
  1774
    }
icculus@9
  1775
icculus@9
  1776
    /* Update the video surface */
icculus@16
  1777
    VideoSurface->pitch = WindowSurface->pitch;
icculus@16
  1778
    VideoSurface->pixels = (void *)((Uint8 *)WindowSurface->pixels +
icculus@16
  1779
        VideoViewport.y * VideoSurface->pitch +
icculus@16
  1780
        VideoViewport.x  * VideoSurface->format->BytesPerPixel);
icculus@16
  1781
    SDL_SetClipRect(VideoSurface, NULL);
icculus@9
  1782
icculus@9
  1783
    /* Copy the old bits back */
icculus@9
  1784
    if (pixels) {
icculus@9
  1785
        src = (Uint8*)pixels;
icculus@16
  1786
        dst = (Uint8*)PublicSurface->pixels;
icculus@16
  1787
        for (row = 0; row < PublicSurface->h; ++row) {
icculus@9
  1788
            SDL_memcpy(dst, src, length);
icculus@9
  1789
            src += length;
icculus@16
  1790
            dst += PublicSurface->pitch;
icculus@9
  1791
        }
icculus@16
  1792
        SDL_Flip(PublicSurface);
icculus@9
  1793
        SDL_free(pixels);
icculus@9
  1794
    }
icculus@9
  1795
icculus@9
  1796
    /* We're done! */
icculus@9
  1797
    return 1;
icculus@9
  1798
}
icculus@9
  1799
icculus@9
  1800
SDL_GrabMode
icculus@9
  1801
SDL_WM_GrabInput(SDL_GrabMode mode)
icculus@9
  1802
{
icculus@9
  1803
    if (mode != SDL_GRAB_QUERY) {
icculus@19
  1804
        SDL_SetWindowGrab(VideoWindow20, mode);
icculus@9
  1805
    }
icculus@19
  1806
    return (SDL_GrabMode) SDL_GetWindowGrab(VideoWindow20);
icculus@9
  1807
}
icculus@9
  1808
icculus@9
  1809
void
icculus@9
  1810
SDL_WarpMouse(Uint16 x, Uint16 y)
icculus@9
  1811
{
icculus@19
  1812
    SDL_WarpMouseInWindow(VideoWindow20, x, y);
icculus@9
  1813
}
icculus@9
  1814
icculus@9
  1815
Uint8
icculus@9
  1816
SDL_GetAppState(void)
icculus@9
  1817
{
icculus@9
  1818
    Uint8 state = 0;
icculus@9
  1819
    Uint32 flags = 0;
icculus@9
  1820
icculus@19
  1821
    flags = SDL_GetWindowFlags(VideoWindow20);
icculus@9
  1822
    if ((flags & SDL_WINDOW_SHOWN) && !(flags & SDL_WINDOW_MINIMIZED)) {
icculus@9
  1823
        state |= SDL_APPACTIVE;
icculus@9
  1824
    }
icculus@9
  1825
    if (flags & SDL_WINDOW_INPUT_FOCUS) {
icculus@9
  1826
        state |= SDL_APPINPUTFOCUS;
icculus@9
  1827
    }
icculus@9
  1828
    if (flags & SDL_WINDOW_MOUSE_FOCUS) {
icculus@9
  1829
        state |= SDL_APPMOUSEFOCUS;
icculus@9
  1830
    }
icculus@9
  1831
    return state;
icculus@9
  1832
}
icculus@9
  1833
icculus@9
  1834
const SDL_version *
icculus@9
  1835
SDL_Linked_Version(void)
icculus@9
  1836
{
icculus@9
  1837
    static SDL_version version;
icculus@9
  1838
    SDL_VERSION(&version);
icculus@9
  1839
    return &version;
icculus@9
  1840
}
icculus@9
  1841
icculus@9
  1842
int
icculus@9
  1843
SDL_SetPalette(SDL_Surface * surface, int flags, const SDL_Color * colors,
icculus@9
  1844
               int firstcolor, int ncolors)
icculus@9
  1845
{
icculus@9
  1846
    return SDL_SetColors(surface, colors, firstcolor, ncolors);
icculus@9
  1847
}
icculus@9
  1848
icculus@9
  1849
int
icculus@9
  1850
SDL_SetColors(SDL_Surface * surface, const SDL_Color * colors, int firstcolor,
icculus@9
  1851
              int ncolors)
icculus@9
  1852
{
icculus@9
  1853
    if (SDL_SetPaletteColors
icculus@9
  1854
        (surface->format->palette, colors, firstcolor, ncolors) == 0) {
icculus@9
  1855
        return 1;
icculus@9
  1856
    } else {
icculus@9
  1857
        return 0;
icculus@9
  1858
    }
icculus@9
  1859
}
icculus@9
  1860
icculus@9
  1861
int
icculus@9
  1862
SDL_GetWMInfo(SDL_SysWMinfo * info)
icculus@9
  1863
{
icculus@19
  1864
    return SDL_GetWindowWMInfo(VideoWindow20, info);
icculus@9
  1865
}
icculus@9
  1866
icculus@9
  1867
#if 0
icculus@9
  1868
void
icculus@9
  1869
SDL_MoveCursor(int x, int y)
icculus@9
  1870
{
icculus@9
  1871
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  1872
icculus@9
  1873
    /* Erase and update the current mouse position */
icculus@9
  1874
    if (SHOULD_DRAWCURSOR(SDL_cursorstate)) {
icculus@9
  1875
        /* Erase and redraw mouse cursor in new position */
icculus@9
  1876
        SDL_LockCursor();
icculus@16
  1877
        SDL_EraseCursor(VideoSurface);
icculus@9
  1878
        SDL_cursor->area.x = (x - SDL_cursor->hot_x);
icculus@9
  1879
        SDL_cursor->area.y = (y - SDL_cursor->hot_y);
icculus@16
  1880
        SDL_DrawCursor(VideoSurface);
icculus@9
  1881
        SDL_UnlockCursor();
icculus@9
  1882
    } else if (_this->MoveWMCursor) {
icculus@9
  1883
        _this->MoveWMCursor(_this, x, y);
icculus@9
  1884
    }
icculus@9
  1885
}
icculus@9
  1886
icculus@9
  1887
/* Keep track of the current cursor colors */
icculus@9
  1888
static int palette_changed = 1;
icculus@9
  1889
static Uint8 pixels8[2];
icculus@9
  1890
icculus@9
  1891
void
icculus@9
  1892
SDL_CursorPaletteChanged(void)
icculus@9
  1893
{
icculus@9
  1894
    palette_changed = 1;
icculus@9
  1895
}
icculus@9
  1896
icculus@9
  1897
void
icculus@9
  1898
SDL_MouseRect(SDL_Rect * area)
icculus@9
  1899
{
icculus@9
  1900
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  1901
    int clip_diff;
icculus@9
  1902
icculus@9
  1903
    *area = SDL_cursor->area;
icculus@9
  1904
    if (area->x < 0) {
icculus@9
  1905
        area->w += area->x;
icculus@9
  1906
        area->x = 0;
icculus@9
  1907
    }
icculus@9
  1908
    if (area->y < 0) {
icculus@9
  1909
        area->h += area->y;
icculus@9
  1910
        area->y = 0;
icculus@9
  1911
    }
icculus@16
  1912
    clip_diff = (area->x + area->w) - VideoSurface->w;
icculus@9
  1913
    if (clip_diff > 0) {
icculus@9
  1914
        area->w = area->w < clip_diff ? 0 : area->w - clip_diff;
icculus@9
  1915
    }
icculus@16
  1916
    clip_diff = (area->y + area->h) - VideoSurface->h;
icculus@9
  1917
    if (clip_diff > 0) {
icculus@9
  1918
        area->h = area->h < clip_diff ? 0 : area->h - clip_diff;
icculus@9
  1919
    }
icculus@9
  1920
}
icculus@9
  1921
icculus@9
  1922
static void
icculus@9
  1923
SDL_DrawCursorFast(SDL_Surface * screen, SDL_Rect * area)
icculus@9
  1924
{
icculus@9
  1925
    const Uint32 pixels[2] = { 0xFFFFFFFF, 0x00000000 };
icculus@9
  1926
    int i, w, h;
icculus@9
  1927
    Uint8 *data, datab;
icculus@9
  1928
    Uint8 *mask, maskb;
icculus@9
  1929
icculus@9
  1930
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
icculus@9
  1931
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
icculus@9
  1932
    switch (screen->format->BytesPerPixel) {
icculus@9
  1933
icculus@9
  1934
    case 1:
icculus@9
  1935
        {
icculus@9
  1936
            Uint8 *dst;
icculus@9
  1937
            int dstskip;
icculus@9
  1938
icculus@9
  1939
            if (palette_changed) {
icculus@9
  1940
                pixels8[0] =
icculus@9
  1941
                    (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
icculus@9
  1942
                pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
icculus@9
  1943
                palette_changed = 0;
icculus@9
  1944
            }
icculus@9
  1945
            dst = (Uint8 *) screen->pixels +
icculus@9
  1946
                (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  1947
                SDL_cursor->area.x;
icculus@9
  1948
            dstskip = screen->pitch - area->w;
icculus@9
  1949
icculus@9
  1950
            for (h = area->h; h; h--) {
icculus@9
  1951
                for (w = area->w / 8; w; w--) {
icculus@9
  1952
                    maskb = *mask++;
icculus@9
  1953
                    datab = *data++;
icculus@9
  1954
                    for (i = 0; i < 8; ++i) {
icculus@9
  1955
                        if (maskb & 0x80) {
icculus@9
  1956
                            *dst = pixels8[datab >> 7];
icculus@9
  1957
                        }
icculus@9
  1958
                        maskb <<= 1;
icculus@9
  1959
                        datab <<= 1;
icculus@9
  1960
                        dst++;
icculus@9
  1961
                    }
icculus@9
  1962
                }
icculus@9
  1963
                dst += dstskip;
icculus@9
  1964
            }
icculus@9
  1965
        }
icculus@9
  1966
        break;
icculus@9
  1967
icculus@9
  1968
    case 2:
icculus@9
  1969
        {
icculus@9
  1970
            Uint16 *dst;
icculus@9
  1971
            int dstskip;
icculus@9
  1972
icculus@9
  1973
            dst = (Uint16 *) screen->pixels +
icculus@9
  1974
                (SDL_cursor->area.y + area->y) * screen->pitch / 2 +
icculus@9
  1975
                SDL_cursor->area.x;
icculus@9
  1976
            dstskip = (screen->pitch / 2) - area->w;
icculus@9
  1977
icculus@9
  1978
            for (h = area->h; h; h--) {
icculus@9
  1979
                for (w = area->w / 8; w; w--) {
icculus@9
  1980
                    maskb = *mask++;
icculus@9
  1981
                    datab = *data++;
icculus@9
  1982
                    for (i = 0; i < 8; ++i) {
icculus@9
  1983
                        if (maskb & 0x80) {
icculus@9
  1984
                            *dst = (Uint16) pixels[datab >> 7];
icculus@9
  1985
                        }
icculus@9
  1986
                        maskb <<= 1;
icculus@9
  1987
                        datab <<= 1;
icculus@9
  1988
                        dst++;
icculus@9
  1989
                    }
icculus@9
  1990
                }
icculus@9
  1991
                dst += dstskip;
icculus@9
  1992
            }
icculus@9
  1993
        }
icculus@9
  1994
        break;
icculus@9
  1995
icculus@9
  1996
    case 3:
icculus@9
  1997
        {
icculus@9
  1998
            Uint8 *dst;
icculus@9
  1999
            int dstskip;
icculus@9
  2000
icculus@9
  2001
            dst = (Uint8 *) screen->pixels +
icculus@9
  2002
                (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  2003
                SDL_cursor->area.x * 3;
icculus@9
  2004
            dstskip = screen->pitch - area->w * 3;
icculus@9
  2005
icculus@9
  2006
            for (h = area->h; h; h--) {
icculus@9
  2007
                for (w = area->w / 8; w; w--) {
icculus@9
  2008
                    maskb = *mask++;
icculus@9
  2009
                    datab = *data++;
icculus@9
  2010
                    for (i = 0; i < 8; ++i) {
icculus@9
  2011
                        if (maskb & 0x80) {
icculus@9
  2012
                            SDL_memset(dst, pixels[datab >> 7], 3);
icculus@9
  2013
                        }
icculus@9
  2014
                        maskb <<= 1;
icculus@9
  2015
                        datab <<= 1;
icculus@9
  2016
                        dst += 3;
icculus@9
  2017
                    }
icculus@9
  2018
                }
icculus@9
  2019
                dst += dstskip;
icculus@9
  2020
            }
icculus@9
  2021
        }
icculus@9
  2022
        break;
icculus@9
  2023
icculus@9
  2024
    case 4:
icculus@9
  2025
        {
icculus@9
  2026
            Uint32 *dst;
icculus@9
  2027
            int dstskip;
icculus@9
  2028
icculus@9
  2029
            dst = (Uint32 *) screen->pixels +
icculus@9
  2030
                (SDL_cursor->area.y + area->y) * screen->pitch / 4 +
icculus@9
  2031
                SDL_cursor->area.x;
icculus@9
  2032
            dstskip = (screen->pitch / 4) - area->w;
icculus@9
  2033
icculus@9
  2034
            for (h = area->h; h; h--) {
icculus@9
  2035
                for (w = area->w / 8; w; w--) {
icculus@9
  2036
                    maskb = *mask++;
icculus@9
  2037
                    datab = *data++;
icculus@9
  2038
                    for (i = 0; i < 8; ++i) {
icculus@9
  2039
                        if (maskb & 0x80) {
icculus@9
  2040
                            *dst = pixels[datab >> 7];
icculus@9
  2041
                        }
icculus@9
  2042
                        maskb <<= 1;
icculus@9
  2043
                        datab <<= 1;
icculus@9
  2044
                        dst++;
icculus@9
  2045
                    }
icculus@9
  2046
                }
icculus@9
  2047
                dst += dstskip;
icculus@9
  2048
            }
icculus@9
  2049
        }
icculus@9
  2050
        break;
icculus@9
  2051
    }
icculus@9
  2052
}
icculus@9
  2053
icculus@9
  2054
static void
icculus@9
  2055
SDL_DrawCursorSlow(SDL_Surface * screen, SDL_Rect * area)
icculus@9
  2056
{
icculus@9
  2057
    const Uint32 pixels[2] = { 0xFFFFFF, 0x000000 };
icculus@9
  2058
    int h;
icculus@9
  2059
    int x, minx, maxx;
icculus@9
  2060
    Uint8 *data, datab = 0;
icculus@9
  2061
    Uint8 *mask, maskb = 0;
icculus@9
  2062
    Uint8 *dst;
icculus@9
  2063
    int dstbpp, dstskip;
icculus@9
  2064
icculus@9
  2065
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
icculus@9
  2066
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
icculus@9
  2067
    dstbpp = screen->format->BytesPerPixel;
icculus@9
  2068
    dst = (Uint8 *) screen->pixels +
icculus@9
  2069
        (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  2070
        SDL_cursor->area.x * dstbpp;
icculus@9
  2071
    dstskip = screen->pitch - SDL_cursor->area.w * dstbpp;
icculus@9
  2072
icculus@9
  2073
    minx = area->x;
icculus@9
  2074
    maxx = area->x + area->w;
icculus@9
  2075
    if (screen->format->BytesPerPixel == 1) {
icculus@9
  2076
        if (palette_changed) {
icculus@9
  2077
            pixels8[0] = (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
icculus@9
  2078
            pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
icculus@9
  2079
            palette_changed = 0;
icculus@9
  2080
        }
icculus@9
  2081
        for (h = area->h; h; h--) {
icculus@9
  2082
            for (x = 0; x < SDL_cursor->area.w; ++x) {
icculus@9
  2083
                if ((x % 8) == 0) {
icculus@9
  2084
                    maskb = *mask++;
icculus@9
  2085
                    datab = *data++;
icculus@9
  2086
                }
icculus@9
  2087
                if ((x >= minx) && (x < maxx)) {
icculus@9
  2088
                    if (maskb & 0x80) {
icculus@9
  2089
                        SDL_memset(dst, pixels8[datab >> 7], dstbpp);
icculus@9
  2090
                    }
icculus@9
  2091
                }
icculus@9
  2092
                maskb <<= 1;
icculus@9
  2093
                datab <<= 1;
icculus@9
  2094
                dst += dstbpp;
icculus@9
  2095
            }
icculus@9
  2096
            dst += dstskip;
icculus@9
  2097
        }
icculus@9
  2098
    } else {
icculus@9
  2099
        for (h = area->h; h; h--) {
icculus@9
  2100
            for (x = 0; x < SDL_cursor->area.w; ++x) {
icculus@9
  2101
                if ((x % 8) == 0) {
icculus@9
  2102
                    maskb = *mask++;
icculus@9
  2103
                    datab = *data++;
icculus@9
  2104
                }
icculus@9
  2105
                if ((x >= minx) && (x < maxx)) {
icculus@9
  2106
                    if (maskb & 0x80) {
icculus@9
  2107
                        SDL_memset(dst, pixels[datab >> 7], dstbpp);
icculus@9
  2108
                    }
icculus@9
  2109
                }
icculus@9
  2110
                maskb <<= 1;
icculus@9
  2111
                datab <<= 1;
icculus@9
  2112
                dst += dstbpp;
icculus@9
  2113
            }
icculus@9
  2114
            dst += dstskip;
icculus@9
  2115
        }
icculus@9
  2116
    }
icculus@9
  2117
}
icculus@9
  2118
icculus@9
  2119
/* This handles the ugly work of converting the saved cursor background from
icculus@9
  2120
   the pixel format of the shadow surface to that of the video surface.
icculus@9
  2121
   This is only necessary when blitting from a shadow surface of a different
icculus@9
  2122
   pixel format than the video surface, and using a software rendered cursor.
icculus@9
  2123
*/
icculus@9
  2124
static void
icculus@9
  2125
SDL_ConvertCursorSave(SDL_Surface * screen, int w, int h)
icculus@9
  2126
{
icculus@9
  2127
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2128
    SDL_BlitInfo info;
icculus@9
  2129
    SDL_loblit RunBlit;
icculus@9
  2130
icculus@9
  2131
    /* Make sure we can steal the blit mapping */
icculus@16
  2132
    if (screen->map->dst != VideoSurface) {
icculus@9
  2133
        return;
icculus@9
  2134
    }
icculus@9
  2135
icculus@9
  2136
    /* Set up the blit information */
icculus@9
  2137
    info.s_pixels = SDL_cursor->save[1];
icculus@9
  2138
    info.s_width = w;
icculus@9
  2139
    info.s_height = h;
icculus@9
  2140
    info.s_skip = 0;
icculus@9
  2141
    info.d_pixels = SDL_cursor->save[0];
icculus@9
  2142
    info.d_width = w;
icculus@9
  2143
    info.d_height = h;
icculus@9
  2144
    info.d_skip = 0;
icculus@9
  2145
    info.aux_data = screen->map->sw_data->aux_data;
icculus@9
  2146
    info.src = screen->format;
icculus@9
  2147
    info.table = screen->map->table;
icculus@16
  2148
    info.dst = VideoSurface->format;
icculus@9
  2149
    RunBlit = screen->map->sw_data->blit;
icculus@9
  2150
icculus@9
  2151
    /* Run the actual software blit */
icculus@9
  2152
    RunBlit(&info);
icculus@9
  2153
}
icculus@9
  2154
icculus@9
  2155
void
icculus@9
  2156
SDL_DrawCursorNoLock(SDL_Surface * screen)
icculus@9
  2157
{
icculus@9
  2158
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2159
    SDL_Rect area;
icculus@9
  2160
icculus@9
  2161
    /* Get the mouse rectangle, clipped to the screen */
icculus@9
  2162
    SDL_MouseRect(&area);
icculus@9
  2163
    if ((area.w == 0) || (area.h == 0)) {
icculus@9
  2164
        return;
icculus@9
  2165
    }
icculus@9
  2166
icculus@9
  2167
    /* Copy mouse background */
icculus@9
  2168
    {
icculus@9
  2169
        int w, h, screenbpp;
icculus@9
  2170
        Uint8 *src, *dst;
icculus@9
  2171
icculus@9
  2172
        /* Set up the copy pointers */
icculus@9
  2173
        screenbpp = screen->format->BytesPerPixel;
icculus@16
  2174
        if ((screen == VideoSurface) ||
icculus@16
  2175
            FORMAT_EQUAL(screen->format, VideoSurface->format)) {
icculus@9
  2176
            dst = SDL_cursor->save[0];
icculus@9
  2177
        } else {
icculus@9
  2178
            dst = SDL_cursor->save[1];
icculus@9
  2179
        }
icculus@9
  2180
        src = (Uint8 *) screen->pixels + area.y * screen->pitch +
icculus@9
  2181
            area.x * screenbpp;
icculus@9
  2182
icculus@9
  2183
        /* Perform the copy */
icculus@9
  2184
        w = area.w * screenbpp;
icculus@9
  2185
        h = area.h;
icculus@9
  2186
        while (h--) {
icculus@9
  2187
            SDL_memcpy(dst, src, w);
icculus@9
  2188
            dst += w;
icculus@9
  2189
            src += screen->pitch;
icculus@9
  2190
        }
icculus@9
  2191
    }
icculus@9
  2192
icculus@9
  2193
    /* Draw the mouse cursor */
icculus@9
  2194
    area.x -= SDL_cursor->area.x;
icculus@9
  2195
    area.y -= SDL_cursor->area.y;
icculus@9
  2196
    if ((area.x == 0) && (area.w == SDL_cursor->area.w)) {
icculus@9
  2197
        SDL_DrawCursorFast(screen, &area);
icculus@9
  2198
    } else {
icculus@9
  2199
        SDL_DrawCursorSlow(screen, &area);
icculus@9
  2200
    }
icculus@9
  2201
}
icculus@9
  2202
icculus@9
  2203
void
icculus@9
  2204
SDL_DrawCursor(SDL_Surface * screen)
icculus@9
  2205
{
icculus@9
  2206
    /* Lock the screen if necessary */
icculus@9
  2207
    if (screen == NULL) {
icculus@9
  2208
        return;
icculus@9
  2209
    }
icculus@9
  2210
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2211
        if (SDL_LockSurface(screen) < 0) {
icculus@9
  2212
            return;
icculus@9
  2213
        }
icculus@9
  2214
    }
icculus@9
  2215
icculus@9
  2216
    SDL_DrawCursorNoLock(screen);
icculus@9
  2217
icculus@9
  2218
    /* Unlock the screen and update if necessary */
icculus@9
  2219
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2220
        SDL_UnlockSurface(screen);
icculus@9
  2221
    }
icculus@9
  2222
    if (screen->flags & SDL_SCREEN_SURFACE) {
icculus@9
  2223
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2224
        SDL_Window *window;
icculus@9
  2225
        SDL_Rect area;
icculus@9
  2226
icculus@9
  2227
        window = SDL_GetWindowFromSurface(screen);
icculus@9
  2228
        if (!window) {
icculus@9
  2229
            return;
icculus@9
  2230
        }
icculus@9
  2231
icculus@9
  2232
        SDL_MouseRect(&area);
icculus@9
  2233
icculus@9
  2234
        if (_this->UpdateWindowSurface) {
icculus@9
  2235
            _this->UpdateWindowSurface(_this, window, 1, &area);
icculus@9
  2236
        }
icculus@9
  2237
    }
icculus@9
  2238
}
icculus@9
  2239
icculus@9
  2240
void
icculus@9
  2241
SDL_EraseCursorNoLock(SDL_Surface * screen)
icculus@9
  2242
{
icculus@9
  2243
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2244
    SDL_Window *window;
icculus@9
  2245
    SDL_Rect area;
icculus@9
  2246
icculus@9
  2247
    /* Get the window associated with the surface */
icculus@9
  2248
    window = SDL_GetWindowFromSurface(screen);
icculus@9
  2249
    if (!window || !window->surface) {
icculus@9
  2250
        return;
icculus@9
  2251
    }
icculus@9
  2252
icculus@9
  2253
    /* Get the mouse rectangle, clipped to the screen */
icculus@9
  2254
    SDL_MouseRect(&area);
icculus@9
  2255
    if ((area.w == 0) || (area.h == 0)) {
icculus@9
  2256
        return;
icculus@9
  2257
    }
icculus@9
  2258
icculus@9
  2259
    /* Copy mouse background */
icculus@9
  2260
    {
icculus@9
  2261
        int w, h, screenbpp;
icculus@9
  2262
        Uint8 *src, *dst;
icculus@9
  2263
icculus@9
  2264
        /* Set up the copy pointers */
icculus@9
  2265
        screenbpp = screen->format->BytesPerPixel;
icculus@9
  2266
        if ((screen->flags & SDL_SCREEN_SURFACE) ||
icculus@9
  2267
            FORMAT_EQUAL(screen->format, window->surface->format)) {
icculus@9
  2268
            src = SDL_cursor->save[0];
icculus@9
  2269
        } else {
icculus@9
  2270
            src = SDL_cursor->save[1];
icculus@9
  2271
        }
icculus@9
  2272
        dst = (Uint8 *) screen->pixels + area.y * screen->pitch +
icculus@9
  2273
            area.x * screenbpp;
icculus@9
  2274
icculus@9
  2275
        /* Perform the copy */
icculus@9
  2276
        w = area.w * screenbpp;
icculus@9
  2277
        h = area.h;
icculus@9
  2278
        while (h--) {
icculus@9
  2279
            SDL_memcpy(dst, src, w);
icculus@9
  2280
            src += w;
icculus@9
  2281
            dst += screen->pitch;
icculus@9
  2282
        }
icculus@9
  2283
icculus@9
  2284
        /* Perform pixel conversion on cursor background */
icculus@9
  2285
        if (src > SDL_cursor->save[1]) {
icculus@9
  2286
            SDL_ConvertCursorSave(screen, area.w, area.h);
icculus@9
  2287
        }
icculus@9
  2288
    }
icculus@9
  2289
}
icculus@9
  2290
icculus@9
  2291
void
icculus@9
  2292
SDL_EraseCursor(SDL_Surface * screen)
icculus@9
  2293
{
icculus@9
  2294
    /* Lock the screen if necessary */
icculus@9
  2295
    if (screen == NULL) {
icculus@9
  2296
        return;
icculus@9
  2297
    }
icculus@9
  2298
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2299
        if (SDL_LockSurface(screen) < 0) {
icculus@9
  2300
            return;
icculus@9
  2301
        }
icculus@9
  2302
    }
icculus@9
  2303
icculus@9
  2304
    SDL_EraseCursorNoLock(screen);
icculus@9
  2305
icculus@9
  2306
    /* Unlock the screen and update if necessary */
icculus@9
  2307
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2308
        SDL_UnlockSurface(screen);
icculus@9
  2309
    }
icculus@9
  2310
    if (screen->flags & SDL_SCREEN_SURFACE) {
icculus@9
  2311
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2312
        SDL_Window *window;
icculus@9
  2313
        SDL_Rect area;
icculus@9
  2314
icculus@9
  2315
        window = SDL_GetWindowFromSurface(screen);
icculus@9
  2316
        if (!window) {
icculus@9
  2317
            return;
icculus@9
  2318
        }
icculus@9
  2319
icculus@9
  2320
        SDL_MouseRect(&area);
icculus@9
  2321
icculus@9
  2322
        if (_this->UpdateWindowSurface) {
icculus@9
  2323
            _this->UpdateWindowSurface(_this, window, 1, &area);
icculus@9
  2324
        }
icculus@9
  2325
    }
icculus@9
  2326
}
icculus@9
  2327
icculus@9
  2328
/* Reset the cursor on video mode change
icculus@9
  2329
   FIXME:  Keep track of all cursors, and reset them all.
icculus@9
  2330
 */
icculus@9
  2331
void
icculus@9
  2332
SDL_ResetCursor(void)
icculus@9
  2333
{
icculus@9
  2334
    int savelen;
icculus@9
  2335
icculus@9
  2336
    if (SDL_cursor) {
icculus@9
  2337
        savelen = SDL_cursor->area.w * 4 * SDL_cursor->area.h;
icculus@9
  2338
        SDL_cursor->area.x = 0;
icculus@9
  2339
        SDL_cursor->area.y = 0;
icculus@9
  2340
        SDL_memset(SDL_cursor->save[0], 0, savelen);
icculus@9
  2341
    }
icculus@9
  2342
}
icculus@9
  2343
#endif
icculus@9
  2344
icculus@9
  2345
struct private_yuvhwdata
icculus@9
  2346
{
icculus@9
  2347
    SDL_SW_YUVTexture *texture;
icculus@9
  2348
    SDL_Surface *display;
icculus@9
  2349
    Uint32 display_format;
icculus@9
  2350
};
icculus@9
  2351
icculus@9
  2352
SDL_Overlay *
icculus@9
  2353
SDL_CreateYUVOverlay(int w, int h, Uint32 format, SDL_Surface * display)
icculus@9
  2354
{
icculus@9
  2355
    SDL_Overlay *overlay;
icculus@9
  2356
    Uint32 texture_format;
icculus@9
  2357
    SDL_SW_YUVTexture *texture;
icculus@9
  2358
icculus@9
  2359
    if ((display->flags & SDL_OPENGL) == SDL_OPENGL) {
icculus@9
  2360
        SDL_SetError("YUV overlays are not supported in OpenGL mode");
icculus@9
  2361
        return NULL;
icculus@9
  2362
    }
icculus@9
  2363
icculus@16
  2364
    if (display != PublicSurface) {
icculus@9
  2365
        SDL_SetError("YUV display is only supported on the screen surface");
icculus@9
  2366
        return NULL;
icculus@9
  2367
    }
icculus@9
  2368
icculus@9
  2369
    switch (format) {
icculus@9
  2370
    case SDL_YV12_OVERLAY:
icculus@9
  2371
        texture_format = SDL_PIXELFORMAT_YV12;
icculus@9
  2372
        break;
icculus@9
  2373
    case SDL_IYUV_OVERLAY:
icculus@9
  2374
        texture_format = SDL_PIXELFORMAT_IYUV;
icculus@9
  2375
        break;
icculus@9
  2376
    case SDL_YUY2_OVERLAY:
icculus@9
  2377
        texture_format = SDL_PIXELFORMAT_YUY2;
icculus@9
  2378
        break;
icculus@9
  2379
    case SDL_UYVY_OVERLAY:
icculus@9
  2380
        texture_format = SDL_PIXELFORMAT_UYVY;
icculus@9
  2381
        break;
icculus@9
  2382
    case SDL_YVYU_OVERLAY:
icculus@9
  2383
        texture_format = SDL_PIXELFORMAT_YVYU;
icculus@9
  2384
        break;
icculus@9
  2385
    default:
icculus@9
  2386
        SDL_SetError("Unknown YUV format");
icculus@9
  2387
        return NULL;
icculus@9
  2388
    }
icculus@9
  2389
icculus@9
  2390
    overlay = (SDL_Overlay *) SDL_malloc(sizeof(*overlay));
icculus@9
  2391
    if (!overlay) {
icculus@9
  2392
        SDL_OutOfMemory();
icculus@9
  2393
        return NULL;
icculus@9
  2394
    }
icculus@9
  2395
    SDL_zerop(overlay);
icculus@9
  2396
icculus@9
  2397
    overlay->hwdata =
icculus@9
  2398
        (struct private_yuvhwdata *) SDL_malloc(sizeof(*overlay->hwdata));
icculus@9
  2399
    if (!overlay->hwdata) {
icculus@9
  2400
        SDL_free(overlay);
icculus@9
  2401
        SDL_OutOfMemory();
icculus@9
  2402
        return NULL;
icculus@9
  2403
    }
icculus@9
  2404
icculus@9
  2405
    texture = SDL_SW_CreateYUVTexture(texture_format, w, h);
icculus@9
  2406
    if (!texture) {
icculus@9
  2407
        SDL_free(overlay->hwdata);
icculus@9
  2408
        SDL_free(overlay);
icculus@9
  2409
        return NULL;
icculus@9
  2410
    }
icculus@9
  2411
    overlay->hwdata->texture = texture;
icculus@9
  2412
    overlay->hwdata->display = NULL;
icculus@9
  2413
    overlay->hwdata->display_format = SDL_PIXELFORMAT_UNKNOWN;
icculus@9
  2414
icculus@9
  2415
    overlay->format = format;
icculus@9
  2416
    overlay->w = w;
icculus@9
  2417
    overlay->h = h;
icculus@9
  2418
    if (format == SDL_YV12_OVERLAY || format == SDL_IYUV_OVERLAY) {
icculus@9
  2419
        overlay->planes = 3;
icculus@9
  2420
    } else {
icculus@9
  2421
        overlay->planes = 1;
icculus@9
  2422
    }
icculus@9
  2423
    overlay->pitches = texture->pitches;
icculus@9
  2424
    overlay->pixels = texture->planes;
icculus@9
  2425
icculus@9
  2426
    return overlay;
icculus@9
  2427
}
icculus@9
  2428
icculus@9
  2429
int
icculus@9
  2430
SDL_LockYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2431
{
icculus@9
  2432
    SDL_Rect rect;
icculus@9
  2433
    void *pixels;
icculus@9
  2434
    int pitch;
icculus@9
  2435
icculus@9
  2436
    if (!overlay) {
icculus@9
  2437
        SDL_SetError("Passed a NULL overlay");
icculus@9
  2438
        return -1;
icculus@9
  2439
    }
icculus@9
  2440
icculus@9
  2441
    rect.x = 0;
icculus@9
  2442
    rect.y = 0;
icculus@9
  2443
    rect.w = overlay->w;
icculus@9
  2444
    rect.h = overlay->h;
icculus@9
  2445
icculus@9
  2446
    if (SDL_SW_LockYUVTexture(overlay->hwdata->texture, &rect, &pixels, &pitch) < 0) {
icculus@9
  2447
        return -1;
icculus@9
  2448
    }
icculus@9
  2449
icculus@9
  2450
    overlay->pixels[0] = (Uint8 *) pixels;
icculus@9
  2451
    overlay->pitches[0] = pitch;
icculus@9
  2452
    switch (overlay->format) {
icculus@9
  2453
    case SDL_YV12_OVERLAY:
icculus@9
  2454
    case SDL_IYUV_OVERLAY:
icculus@9
  2455
        overlay->pitches[1] = pitch / 2;
icculus@9
  2456
        overlay->pitches[2] = pitch / 2;
icculus@9
  2457
        overlay->pixels[1] =
icculus@9
  2458
            overlay->pixels[0] + overlay->pitches[0] * overlay->h;
icculus@9
  2459
        overlay->pixels[2] =
icculus@9
  2460
            overlay->pixels[1] + overlay->pitches[1] * overlay->h / 2;
icculus@9
  2461
        break;
icculus@9
  2462
    case SDL_YUY2_OVERLAY:
icculus@9
  2463
    case SDL_UYVY_OVERLAY:
icculus@9
  2464
    case SDL_YVYU_OVERLAY:
icculus@9
  2465
        break;
icculus@9
  2466
    }
icculus@9
  2467
    return 0;
icculus@9
  2468
}
icculus@9
  2469
icculus@9
  2470
void
icculus@9
  2471
SDL_UnlockYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2472
{
icculus@9
  2473
    if (!overlay) {
icculus@9
  2474
        return;
icculus@9
  2475
    }
icculus@9
  2476
icculus@9
  2477
    SDL_SW_UnlockYUVTexture(overlay->hwdata->texture);
icculus@9
  2478
}
icculus@9
  2479
icculus@9
  2480
int
icculus@9
  2481
SDL_DisplayYUVOverlay(SDL_Overlay * overlay, SDL_Rect * dstrect)
icculus@9
  2482
{
icculus@9
  2483
    SDL_Surface *display;
icculus@9
  2484
    SDL_Rect src_rect;
icculus@9
  2485
    SDL_Rect dst_rect;
icculus@9
  2486
    void *pixels;
icculus@9
  2487
icculus@9
  2488
    if (!overlay || !dstrect) {
icculus@9
  2489
        SDL_SetError("Passed a NULL overlay or dstrect");
icculus@9
  2490
        return -1;
icculus@9
  2491
    }
icculus@9
  2492
icculus@9
  2493
    display = overlay->hwdata->display;
icculus@16
  2494
    if (display != VideoSurface) {
icculus@16
  2495
        overlay->hwdata->display = display = VideoSurface;
icculus@9
  2496
        overlay->hwdata->display_format = SDL_MasksToPixelFormatEnum(
icculus@9
  2497
                                                display->format->BitsPerPixel,
icculus@9
  2498
                                                display->format->Rmask,
icculus@9
  2499
                                                display->format->Gmask,
icculus@9
  2500
                                                display->format->Bmask,
icculus@9
  2501
                                                display->format->Amask);
icculus@9
  2502
    }
icculus@9
  2503
icculus@9
  2504
    src_rect.x = 0;
icculus@9
  2505
    src_rect.y = 0;
icculus@9
  2506
    src_rect.w = overlay->w;
icculus@9
  2507
    src_rect.h = overlay->h;
icculus@9
  2508
icculus@9
  2509
    if (!SDL_IntersectRect(&display->clip_rect, dstrect, &dst_rect)) {
icculus@9
  2510
        return 0;
icculus@9
  2511
    }
icculus@9
  2512
     
icculus@9
  2513
    pixels = (void *)((Uint8 *)display->pixels +
icculus@9
  2514
                        dst_rect.y * display->pitch +
icculus@9
  2515
                        dst_rect.x * display->format->BytesPerPixel);
icculus@9
  2516
icculus@9
  2517
    if (SDL_SW_CopyYUVToRGB(overlay->hwdata->texture, &src_rect,
icculus@9
  2518
                            overlay->hwdata->display_format,
icculus@9
  2519
                            dst_rect.w, dst_rect.h,
icculus@9
  2520
                            pixels, display->pitch) < 0) {
icculus@9
  2521
        return -1;
icculus@9
  2522
    }
icculus@19
  2523
    SDL_UpdateWindowSurface(VideoWindow20);
icculus@9
  2524
    return 0;
icculus@9
  2525
}
icculus@9
  2526
icculus@9
  2527
void
icculus@9
  2528
SDL_FreeYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2529
{
icculus@9
  2530
    if (!overlay) {
icculus@9
  2531
        return;
icculus@9
  2532
    }
icculus@9
  2533
    if (overlay->hwdata) {
icculus@9
  2534
        if (overlay->hwdata->texture) {
icculus@9
  2535
            SDL_SW_DestroyYUVTexture(overlay->hwdata->texture);
icculus@9
  2536
        }
icculus@9
  2537
        SDL_free(overlay->hwdata);
icculus@9
  2538
    }
icculus@9
  2539
    SDL_free(overlay);
icculus@9
  2540
}
icculus@9
  2541
icculus@9
  2542
void
icculus@9
  2543
SDL_GL_SwapBuffers(void)
icculus@9
  2544
{
icculus@19
  2545
    SDL_GL_SwapWindow(VideoWindow20);
icculus@9
  2546
}
icculus@9
  2547
icculus@9
  2548
int
icculus@9
  2549
SDL_SetGamma(float red, float green, float blue)
icculus@9
  2550
{
icculus@9
  2551
    Uint16 red_ramp[256];
icculus@9
  2552
    Uint16 green_ramp[256];
icculus@9
  2553
    Uint16 blue_ramp[256];
icculus@9
  2554
icculus@9
  2555
    SDL_CalculateGammaRamp(red, red_ramp);
icculus@9
  2556
    if (green == red) {
icculus@9
  2557
        SDL_memcpy(green_ramp, red_ramp, sizeof(red_ramp));
icculus@9
  2558
    } else {
icculus@9
  2559
        SDL_CalculateGammaRamp(green, green_ramp);
icculus@9
  2560
    }
icculus@9
  2561
    if (blue == red) {
icculus@9
  2562
        SDL_memcpy(blue_ramp, red_ramp, sizeof(red_ramp));
icculus@9
  2563
    } else {
icculus@9
  2564
        SDL_CalculateGammaRamp(blue, blue_ramp);
icculus@9
  2565
    }
icculus@19
  2566
    return SDL_SetWindowGammaRamp(VideoWindow20, red_ramp, green_ramp, blue_ramp);
icculus@9
  2567
}
icculus@9
  2568
icculus@9
  2569
int
icculus@9
  2570
SDL_SetGammaRamp(const Uint16 * red, const Uint16 * green, const Uint16 * blue)
icculus@9
  2571
{
icculus@19
  2572
    return SDL_SetWindowGammaRamp(VideoWindow20, red, green, blue);
icculus@9
  2573
}
icculus@9
  2574
icculus@9
  2575
int
icculus@9
  2576
SDL_GetGammaRamp(Uint16 * red, Uint16 * green, Uint16 * blue)
icculus@9
  2577
{
icculus@19
  2578
    return SDL_GetWindowGammaRamp(VideoWindow20, red, green, blue);
icculus@9
  2579
}
icculus@9
  2580
icculus@9
  2581
int
icculus@9
  2582
SDL_EnableKeyRepeat(int delay, int interval)
icculus@9
  2583
{
icculus@9
  2584
    return 0;
icculus@9
  2585
}
icculus@9
  2586
icculus@9
  2587
void
icculus@9
  2588
SDL_GetKeyRepeat(int *delay, int *interval)
icculus@9
  2589
{
icculus@9
  2590
    if (delay) {
icculus@9
  2591
        *delay = SDL_DEFAULT_REPEAT_DELAY;
icculus@9
  2592
    }
icculus@9
  2593
    if (interval) {
icculus@9
  2594
        *interval = SDL_DEFAULT_REPEAT_INTERVAL;
icculus@9
  2595
    }
icculus@9
  2596
}
icculus@9
  2597
icculus@19
  2598
icculus@19
  2599
icculus@19
  2600
icculus@9
  2601
int
icculus@9
  2602
SDL_EnableUNICODE(int enable)
icculus@9
  2603
{
icculus@16
  2604
    int previous = EnabledUnicode;
icculus@9
  2605
icculus@9
  2606
    switch (enable) {
icculus@9
  2607
    case 1:
icculus@16
  2608
        EnabledUnicode = 1;
icculus@9
  2609
        SDL_StartTextInput();
icculus@9
  2610
        break;
icculus@9
  2611
    case 0:
icculus@16
  2612
        EnabledUnicode = 0;
icculus@9
  2613
        SDL_StopTextInput();
icculus@9
  2614
        break;
icculus@9
  2615
    }
icculus@9
  2616
    return previous;
icculus@9
  2617
}
icculus@9
  2618
icculus@9
  2619
static Uint32
icculus@9
  2620
SDL_SetTimerCallback(Uint32 interval, void* param)
icculus@9
  2621
{
icculus@9
  2622
    return ((SDL_OldTimerCallback)param)(interval);
icculus@9
  2623
}
icculus@9
  2624
icculus@9
  2625
int
icculus@9
  2626
SDL_SetTimer(Uint32 interval, SDL_OldTimerCallback callback)
icculus@9
  2627
{
icculus@9
  2628
    static SDL_TimerID compat_timer;
icculus@9
  2629
icculus@9
  2630
    if (compat_timer) {
icculus@10
  2631
        SDL20_RemoveTimer(compat_timer);
icculus@9
  2632
        compat_timer = 0;
icculus@9
  2633
    }
icculus@9
  2634
icculus@9
  2635
    if (interval && callback) {
icculus@10
  2636
        compat_timer = SDL20_AddTimer(interval, SDL_SetTimerCallback, callback);
icculus@9
  2637
        if (!compat_timer) {
icculus@9
  2638
            return -1;
icculus@9
  2639
        }
icculus@9
  2640
    }
icculus@9
  2641
    return 0;
icculus@9
  2642
}
icculus@9
  2643
icculus@9
  2644
int
icculus@9
  2645
SDL_putenv(const char *_var)
icculus@9
  2646
{
icculus@9
  2647
    char *ptr = NULL;
icculus@9
  2648
    char *var = SDL_strdup(_var);
icculus@9
  2649
    if (var == NULL) {
icculus@9
  2650
        return -1;  /* we don't set errno. */
icculus@9
  2651
    }
icculus@9
  2652
icculus@9
  2653
    ptr = SDL_strchr(var, '=');
icculus@9
  2654
    if (ptr == NULL) {
icculus@9
  2655
        SDL_free(var);
icculus@9
  2656
        return -1;
icculus@9
  2657
    }
icculus@9
  2658
icculus@9
  2659
    *ptr = '\0';  /* split the string into name and value. */
icculus@9
  2660
    SDL_setenv(var, ptr + 1, 1);
icculus@9
  2661
    SDL_free(var);
icculus@9
  2662
    return 0;
icculus@9
  2663
}
icculus@9
  2664
icculus@9
  2665
icculus@9
  2666
icculus@9
  2667
/* CD-ROM support is gone from SDL 2.0, so just have stubs that fail. */
icculus@9
  2668
icculus@9
  2669
typedef void *SDL12_CD;  /* close enough.  :) */
icculus@9
  2670
typedef int SDL12_CDstatus;  /* close enough.  :) */
icculus@9
  2671
icculus@9
  2672
static int
icculus@9
  2673
CDUnsupported(void)
icculus@9
  2674
{
icculus@9
  2675
    SDL_SetError("CD interface is unsupported");
icculus@9
  2676
    return -1;
icculus@9
  2677
}
icculus@9
  2678
icculus@9
  2679
int
icculus@9
  2680
SDL_CDNumDrives(void)
icculus@9
  2681
{
icculus@9
  2682
    return 0;  /* !!! FIXME: should return -1 without SDL_INIT_CDROM */
icculus@9
  2683
}
icculus@9
  2684
icculus@9
  2685
const char *SDL_CDName(int drive) { CDUnsupported(); return NULL; }
icculus@9
  2686
SDL12_CD * SDL_CDOpen(int drive) { CDUnsupported(); return NULL; }
icculus@9
  2687
SDL12_CDstatus SDL_CDStatus(SDL_CD *cdrom) { return CDUnsupported(); }
icculus@9
  2688
int SDL_CDPlayTracks(SDL12_CD *cdrom, int start_track, int start_frame, int ntracks, int nframes) { return CDUnsupported(); }
icculus@9
  2689
int SDL_CDPlay(SDL12_CD *cdrom, int start, int length) { return CDUnsupported(); }
icculus@9
  2690
int SDL_CDPause(SDL12_CD *cdrom) { return CDUnsupported(); }
icculus@9
  2691
int SDL_CDResume(SDL12_CD *cdrom) { return CDUnsupported(); }
icculus@9
  2692
int SDL_CDStop(SDL12_CD *cdrom) { return CDUnsupported(); }
icculus@9
  2693
int SDL_CDEject(SDL12_CD *cdrom) { return CDUnsupported(); }
icculus@9
  2694
void SDL_CDClose(SDL12_CD *cdrom) {}
icculus@9
  2695
icculus@9
  2696
/* !!! FIXME: Removed from 2.0; do nothing. We can't even report failure. */
icculus@9
  2697
void SDL_KillThread(SDL_Thread *thread) {}
icculus@9
  2698
icculus@10
  2699
/* This changed from an opaque pointer to an int in 2.0. */
icculus@10
  2700
typedef struct _SDL12_TimerID *SDL12_TimerID;
icculus@10
  2701
SDL_COMPILE_TIME_ASSERT(timer, sizeof(SDL12_TimerID) >= sizeof(SDL_TimerID));
icculus@10
  2702
icculus@10
  2703
SDL12_TimerID
icculus@10
  2704
SDL_AddTimer(Uint32 interval, SDL_NewTimerCallback callback, void *param)
icculus@10
  2705
{
icculus@10
  2706
    return (SDL12_TimerID) ((size_t) SDL20_AddTimer(interval, callback, param));
icculus@10
  2707
}
icculus@10
  2708
icculus@10
  2709
SDL_bool
icculus@10
  2710
SDL_RemoveTimer(SDL12_TimerID id)
icculus@10
  2711
{
icculus@10
  2712
    return SDL20_RemoveTimer((SDL_TimerID) ((size_t)id));
icculus@10
  2713
}
icculus@10
  2714
icculus@10
  2715
icculus@10
  2716
typedef struct SDL12_RWops {
icculus@10
  2717
    int (SDLCALL *seek)(struct SDL_RWops *context, int offset, int whence);
icculus@10
  2718
    int (SDLCALL *read)(struct SDL_RWops *context, void *ptr, int size, int maxnum);
icculus@10
  2719
    int (SDLCALL *write)(struct SDL_RWops *context, const void *ptr, int size, int num);
icculus@10
  2720
    int (SDLCALL *close)(struct SDL_RWops *context);
icculus@10
  2721
    Uint32 type;
icculus@10
  2722
    void *padding[8];
icculus@10
  2723
    SDL_RWops *rwops20;
icculus@10
  2724
} SDL12_RWops;
icculus@10
  2725
icculus@10
  2726
icculus@10
  2727
SDL12_RWops *
icculus@10
  2728
SDL_AllocRW(void)
icculus@10
  2729
{
icculus@10
  2730
    SDL12_RWops *rwops = (SDL12_RWops *) SDL_malloc(sizeof (SDL12_RWops));
icculus@10
  2731
    if (!rwops)
icculus@10
  2732
        SDL20_OutOfMemory();
icculus@10
  2733
    return rwops;
icculus@10
  2734
}
icculus@10
  2735
icculus@10
  2736
void
icculus@10
  2737
SDL_FreeRW(SDL12_RWops *rwops12)
icculus@10
  2738
{
icculus@10
  2739
    SDL_free(rwops12);