src/SDL12_compat.c
author Ryan C. Gordon <icculus@icculus.org>
Sat, 13 Apr 2013 21:57:24 -0400
changeset 33 4e9cde983cdc
parent 32 0e6f8855a779
child 34 946cbc18ba19
permissions -rw-r--r--
Added SDL_Linked_Version().
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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 "SDL20_include_wrapper.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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/*
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 * We report the library version as 1.2.$(SDL12_COMPAT_VERSION). This number
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 *  should be way ahead of what SDL-1.2 Classic would report, so apps can
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 *  decide if they're running under the compat layer, if they really care.
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 */
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#define SDL12_COMPAT_VERSION 50
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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_GetKeyName
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// !!! IMPLEMENT_ME SDL_GetKeyState
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// !!! IMPLEMENT_ME SDL_GetModState
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// !!! IMPLEMENT_ME SDL_GetRelativeMouseState
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// !!! IMPLEMENT_ME SDL_LockSurface
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// !!! IMPLEMENT_ME SDL_LowerBlit
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// !!! IMPLEMENT_ME SDL_SetColorKey
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// !!! IMPLEMENT_ME SDL_SetModState
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// !!! IMPLEMENT_ME SDL_SoftStretch
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// !!! IMPLEMENT_ME SDL_UnlockSurface
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// !!! IMPLEMENT_ME SDL_UpperBlit
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// !!! IMPLEMENT_ME X11_KeyToUnicode
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#define SDL20_SYM(rc,fn,params,args,ret) \
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    typedef rc (*SDL20_##fn##_t) params; \
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    static SDL20_##fn##_t SDL20_##fn = NULL;
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#define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) \
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    SDL20_SYM(rc,fn,params,args,ret)
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#include "SDL20_syms.h"
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#undef SDL20_SYM_PASSTHROUGH
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#undef SDL20_SYM
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typedef void (*SDL20_SetError_t)(const char *fmt, ...);
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static SDL20_SetError_t SDL20_SetError = NULL;
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/* these are macros in the SDL headers, so make our own. */
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#define SDL20_OutOfMemory()	SDL20_Error(SDL_ENOMEM)
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#define SDL20_Unsupported()	SDL20_Error(SDL_UNSUPPORTED)
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#define SDL20_InvalidParamError(param)	SDL20_SetError("Parameter '%s' is invalid", (param))
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#define SDL12_INIT_TIMER       0x00000001
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#define SDL12_INIT_AUDIO       0x00000010
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#define SDL12_INIT_VIDEO       0x00000020
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#define SDL12_INIT_CDROM       0x00000100
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#define SDL12_INIT_JOYSTICK    0x00000200
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#define SDL12_INIT_NOPARACHUTE 0x00100000
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#define SDL12_INIT_EVENTTHREAD 0x01000000
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#define SDL12_INIT_EVERYTHING  0x0000FFFF
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typedef struct SDL12_Palette
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{
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    int       ncolors;
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    SDL_Color *colors;
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} SDL12_Palette;
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typedef struct SDL12_PixelFormat
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{
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    SDL12_Palette *palette;
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    Uint8 BitsPerPixel;
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    Uint8 BytesPerPixel;
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    Uint8 Rloss;
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    Uint8 Gloss;
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    Uint8 Bloss;
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    Uint8 Aloss;
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    Uint8 Rshift;
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    Uint8 Gshift;
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    Uint8 Bshift;
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    Uint8 Ashift;
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    Uint32 Rmask;
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    Uint32 Gmask;
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    Uint32 Bmask;
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    Uint32 Amask;
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    Uint32 colorkey;
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    Uint8 alpha;
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} SDL12_PixelFormat;
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typedef struct SDL12_Surface
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{
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    Uint32 flags;
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    SDL12_PixelFormat *format;
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    int w;
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    int h;
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    Uint16 pitch;
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    void *pixels;
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    int offset;
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    SDL_Surface *hwdata; /* the real SDL 1.2 has an opaque pointer to a platform-specific thing here. */
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    SDL_Rect clip_rect;
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    Uint32 unused1;
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    Uint32 locked;
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    void *blitmap;
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    unsigned int format_version;
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    int refcount;
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} SDL12_Surface;
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typedef struct
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{
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    Uint32 hw_available :1;
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    Uint32 wm_available :1;
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    Uint32 UnusedBits1  :6;
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    Uint32 UnusedBits2  :1;
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    Uint32 blit_hw      :1;
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    Uint32 blit_hw_CC   :1;
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    Uint32 blit_hw_A    :1;
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    Uint32 blit_sw      :1;
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    Uint32 blit_sw_CC   :1;
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    Uint32 blit_sw_A    :1;
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    Uint32 blit_fill    :1;
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    Uint32 UnusedBits3  :16;
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    Uint32 video_mem;
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    SDL_PixelFormat *vfmt;
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    int current_w;
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    int current_h;
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} SDL12_VideoInfo;
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#define SDL12_HWSURFACE 0x00000001
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#define SDL12_ASYNCBLIT 0x00000004
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#define SDL12_ANYFORMAT 0x10000000
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#define SDL12_HWPALETTE 0x20000000
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#define SDL12_DOUBLEBUF 0x40000000
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#define SDL12_FULLSCREEN 0x80000000
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#define SDL12_OPENGL 0x00000002
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#define SDL12_OPENGLBLIT 0x0000000A
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#define SDL12_RESIZABLE 0x00000010
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#define SDL12_NOFRAME 0x00000020
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#define SDL12_HWACCEL 0x00000100
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#define SDL12_SRCCOLORKEY 0x00001000
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#define SDL12_RLEACCELOK 0x00002000
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#define SDL12_RLEACCEL 0x00004000
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#define SDL12_SRCALPHA 0x00010000
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#define SDL12_PREALLOC 0x01000000
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typedef 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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#define SDL12_APPMOUSEFOCUS (1<<0)
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#define SDL12_APPINPUTFOCUS (1<<1)
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#define SDL12_APPACTIVE     (1<<2)
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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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    //FIXME: SDL12_keysym keysym;
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} SDL12_KeyboardEvent;
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typedef struct
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{
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    Uint8 type;
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    Uint8 which;
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    Uint8 state;
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    Uint16 x, y;
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    Sint16 xrel;
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    Sint16 yrel;
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} SDL12_MouseMotionEvent;
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typedef struct
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{
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    Uint8 type;
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    Uint8 which;
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    Uint8 button;
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    Uint8 state;
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    Uint16 x, y;
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} SDL12_MouseButtonEvent;
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typedef struct
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{
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    Uint8 type;
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    Uint8 which;
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    Uint8 axis;
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    Sint16 value;
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} SDL12_JoyAxisEvent;
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typedef struct
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{
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    Uint8 type;
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    Uint8 which;
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    Uint8 ball;
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    Sint16 xrel;
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    Sint16 yrel;
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} SDL12_JoyBallEvent;
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typedef struct
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{
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    Uint8 type;
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    Uint8 which;
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    Uint8 hat;
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    Uint8 value;
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} SDL12_JoyHatEvent;
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typedef struct
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{
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    Uint8 type;
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    Uint8 which;
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    Uint8 button;
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    Uint8 state;
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} SDL12_JoyButtonEvent;
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typedef struct
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{
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    Uint8 type;
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    int w;
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    int h;
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} SDL12_ResizeEvent;
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typedef struct
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{
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    Uint8 type;
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} SDL12_ExposeEvent;
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typedef struct
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{
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    Uint8 type;
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} SDL12_QuitEvent;
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typedef struct
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{
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    Uint8 type;
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    int code;
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    void *data1;
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    void *data2;
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} SDL12_UserEvent;
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typedef struct
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{
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    Uint8 type;
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    void *msg;
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} SDL12_SysWMEvent;
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typedef union
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{
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    Uint8 type;
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    SDL12_ActiveEvent active;
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    SDL12_KeyboardEvent key;
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    SDL12_MouseMotionEvent motion;
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    SDL12_MouseButtonEvent button;
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    SDL12_JoyAxisEvent jaxis;
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    SDL12_JoyBallEvent jball;
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    SDL12_JoyHatEvent jhat;
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    SDL12_JoyButtonEvent jbutton;
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    SDL12_ResizeEvent resize;
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    SDL12_ExposeEvent expose;
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    SDL12_QuitEvent quit;
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    SDL12_UserEvent user;
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    SDL12_SysWMEvent syswm;
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} SDL12_Event;
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typedef 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 Uint32 (SDLCALL *SDL12_TimerCallback)(Uint32 interval);
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typedef SDL_TimerCallback SDL12_NewTimerCallback;
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typedef struct
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{
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    SDL_Rect area;
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    Sint16 hot_x;
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    Sint16 hot_y;
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    Uint8 *data;
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    Uint8 *mask;
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    Uint8 *save[2];
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    SDL_Cursor *wm_cursor;  /* the real SDL 1.2 has an opaque pointer to a platform-specific cursor here. */
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} SDL12_Cursor;
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typedef enum
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{
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    SDL12_GL_RED_SIZE,
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    SDL12_GL_GREEN_SIZE,
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    SDL12_GL_BLUE_SIZE,
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    SDL12_GL_ALPHA_SIZE,
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    SDL12_GL_BUFFER_SIZE,
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    SDL12_GL_DOUBLEBUFFER,
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    SDL12_GL_DEPTH_SIZE,
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    SDL12_GL_STENCIL_SIZE,
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    SDL12_GL_ACCUM_RED_SIZE,
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    SDL12_GL_ACCUM_GREEN_SIZE,
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    SDL12_GL_ACCUM_BLUE_SIZE,
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    SDL12_GL_ACCUM_ALPHA_SIZE,
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    SDL12_GL_STEREO,
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    SDL12_GL_MULTISAMPLEBUFFERS,
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    SDL12_GL_MULTISAMPLESAMPLES,
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    SDL12_GL_ACCELERATED_VISUAL,
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    SDL12_GL_SWAP_CONTROL,
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    SDL12_GL_MAX_ATTRIBUTE
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} SDL12_GLattr;
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static SDL12_VideoInfo VideoInfo;
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static SDL_Window *VideoWindow20 = NULL;
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static SDL12_Surface *WindowSurface = NULL;
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static SDL12_Surface *VideoSurface = NULL;
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static SDL12_Surface *ShadowSurface = NULL;
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static SDL12_Surface *PublicSurface = NULL;
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static SDL_GLContext *VideoContext = NULL;
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static Uint32 VideoFlags = 0;
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static SDL_Rect VideoViewport;
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static char *WindowTitle = NULL;
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static char *WindowIconTitle = NULL;
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static SDL_Surface *VideoIcon;
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static int EnabledUnicode = 0;
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static int VideoDisplayIndex = 0;
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static int CDRomInit = 0;
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static SDL12_EventFilter EventFilter12 = NULL;
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static SDL12_Cursor *CurrentCursor = NULL;
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static Uint8 EventStates[SDL12_NUMEVENTS];
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static int SwapInterval = 0;
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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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const SDL_version *
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SDL_Linked_Version(void)
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{
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    static const SDL_version version = { 1, 2, SDL12_COMPAT_VERSION };
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    return &version;
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}
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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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   408
    static void *Loaded_SDL20 = NULL;
icculus@9
   409
    #define LoadSDL20Library() ((Loaded_SDL20 = dlopen(SDL20_LIBNAME, RTLD_LOCAL)) != NULL)
icculus@9
   410
    #define LookupSDL20Sym(sym) dlsym(Loaded_SDL20, sym)
icculus@9
   411
    #define CloseSDL20Library() { if (Loaded_SDL20) { dlclose(Loaded_SDL20); Loaded_SDL20 = NULL; } }
icculus@9
   412
#else
icculus@9
   413
    #error Please define your platform.
icculus@9
   414
#endif
icculus@9
   415
icculus@9
   416
static void *
icculus@9
   417
LoadSDL20Symbol(const char *fn, int *okay)
icculus@9
   418
{
icculus@9
   419
    void *retval = NULL;
icculus@9
   420
    if (*okay)  /* only bother trying if we haven't previously failed. */
icculus@9
   421
    {
icculus@9
   422
        retval = LookupSDL20Sym(fn);
icculus@9
   423
        if (retval == NULL)
icculus@9
   424
            *okay = 0;
icculus@9
   425
    }
icculus@9
   426
    return retval;
icculus@9
   427
}
icculus@9
   428
icculus@9
   429
static void
icculus@9
   430
UnloadSDL20(void)
icculus@9
   431
{
icculus@9
   432
    #define SDL20_SYM(rc,fn,params,args,ret) SDL20_##fn = NULL;
icculus@9
   433
    #define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) SDL20_##fn = NULL;
icculus@9
   434
    #include "SDL20_syms.h"
icculus@9
   435
    #undef SDL20_SYM_PASSTHROUGH
icculus@9
   436
    #undef SDL20_SYM
icculus@11
   437
    SDL20_SetError = NULL;
icculus@9
   438
    CloseSDL20Library();
icculus@9
   439
}
icculus@9
   440
icculus@9
   441
static int
icculus@9
   442
LoadSDL20(void)
icculus@9
   443
{
icculus@9
   444
    int okay = 1;
icculus@9
   445
    if (!Loaded_SDL20)
icculus@9
   446
    {
icculus@9
   447
        okay = LoadSDL20Library();
icculus@9
   448
        #define SDL20_SYM(rc,fn,params,args,ret) SDL20_##fn = (SDL20_##fn##_t) LoadSDL20Symbol("SDL_" #fn, &okay);
icculus@9
   449
        #define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) SDL20_SYM(rc,fn,params,args,ret)
icculus@9
   450
        #include "SDL20_syms.h"
icculus@9
   451
        #undef SDL20_SYM_PASSTHROUGH
icculus@9
   452
        #undef SDL20_SYM
icculus@11
   453
        SDL20_SetError = (SDL20_SetError_t) LoadSDL20Symbol("SDL_SetError", &okay);
icculus@9
   454
        if (!okay)
icculus@9
   455
            UnloadSDL20();
icculus@9
   456
    }
icculus@9
   457
    return okay;
icculus@9
   458
}
icculus@9
   459
icculus@9
   460
icculus@9
   461
static int
icculus@9
   462
GetVideoDisplay()
icculus@9
   463
{
icculus@9
   464
    // !!! FIXME: cache this value during SDL_Init() so it doesn't change.
icculus@9
   465
    const char *variable = SDL_getenv("SDL_VIDEO_FULLSCREEN_DISPLAY");
icculus@9
   466
    if ( !variable ) {
icculus@9
   467
        variable = SDL_getenv("SDL_VIDEO_FULLSCREEN_HEAD");
icculus@9
   468
    }
icculus@9
   469
    if ( variable ) {
icculus@9
   470
        return SDL_atoi(variable);
icculus@9
   471
    } else {
icculus@9
   472
        return 0;
icculus@9
   473
    }
icculus@9
   474
}
icculus@9
   475
icculus@11
   476
static int
icculus@11
   477
DoSDLInit(const int justsubs, Uint32 sdl12flags)
icculus@9
   478
{
icculus@9
   479
    Uint32 sdl20flags = 0;
icculus@9
   480
    int rc;
icculus@9
   481
icculus@9
   482
    if (!LoadSDL20())
icculus@9
   483
        return -1;
icculus@9
   484
icculus@19
   485
    #define SETFLAG(flag) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag
icculus@9
   486
    SETFLAG(TIMER);
icculus@9
   487
    SETFLAG(AUDIO);
icculus@9
   488
    SETFLAG(VIDEO);
icculus@9
   489
    SETFLAG(JOYSTICK);
icculus@9
   490
    SETFLAG(NOPARACHUTE);
icculus@11
   491
    #undef SETFLAG
icculus@11
   492
icculus@11
   493
    // There's no CDROM in 2.0, but we'll just pretend it succeeded.
icculus@11
   494
    if (sdl12flags & SDL12_INIT_CDROM)
icculus@16
   495
        CDRomInit = 1;
icculus@11
   496
icculus@11
   497
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   498
icculus@11
   499
    rc = justsubs ? SDL20_InitSubSystem(sdl20flags) : SDL20_Init(sdl20flags);
icculus@11
   500
    if ((rc == 0) && (sdl20flags & SDL_INIT_VIDEO))
icculus@18
   501
    {
icculus@20
   502
        int i;
icculus@20
   503
        for (i = 0; i < SDL12_MAXEVENTS-1; i++)
icculus@20
   504
            EventQueuePool[i].next = &EventQueuePool[i+1];
icculus@20
   505
        EventQueuePool[SDL12_MAXEVENTS-1].next = NULL;
icculus@20
   506
        EventQueueHead = EventQueueTail = NULL;
icculus@20
   507
        EventQueueAvailable = EventQueuePool;
icculus@27
   508
        SDL_memset(EventStates, SDL_ENABLE, sizeof (EventStates)); /* on by default */
icculus@27
   509
        EventStates[SDL12_SYSWMEVENT] = SDL_IGNORE;  /* off by default. */
icculus@18
   510
        SDL20_SetEventFilter(EventFilter20to12, NULL);
icculus@16
   511
        VideoDisplayIndex = GetVideoDisplay();
icculus@30
   512
        SwapInterval = 0;
icculus@18
   513
    }
icculus@18
   514
icculus@11
   515
    return rc;
icculus@11
   516
}
icculus@11
   517
icculus@11
   518
int
icculus@11
   519
SDL_InitSubSystem(Uint32 sdl12flags)
icculus@11
   520
{
icculus@11
   521
    return DoSDLInit(1, sdl12flags);
icculus@11
   522
}
icculus@11
   523
icculus@11
   524
int
icculus@11
   525
SDL_Init(Uint32 sdl12flags)
icculus@11
   526
{
icculus@11
   527
    return DoSDLInit(0, sdl12flags);
icculus@11
   528
}
icculus@11
   529
icculus@11
   530
Uint32
icculus@11
   531
SDL_WasInit(Uint32 sdl12flags)
icculus@11
   532
{
icculus@11
   533
    // !!! FIXME: this is cut and pasted several places.
icculus@11
   534
    Uint32 sdl20flags = 0;
icculus@11
   535
    Uint32 extraflags = 0;
icculus@11
   536
icculus@19
   537
    #define SETFLAG(flag) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag
icculus@11
   538
    SETFLAG(TIMER);
icculus@11
   539
    SETFLAG(AUDIO);
icculus@11
   540
    SETFLAG(VIDEO);
icculus@11
   541
    SETFLAG(JOYSTICK);
icculus@11
   542
    SETFLAG(NOPARACHUTE);
icculus@11
   543
    #undef SETFLAG
icculus@11
   544
icculus@16
   545
    if ((sdl12flags & SDL12_INIT_CDROM) && (CDRomInit))
icculus@11
   546
        extraflags |= SDL12_INIT_CDROM;
icculus@11
   547
icculus@11
   548
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   549
icculus@11
   550
    // !!! FIXME: convert back to 1.2
icculus@11
   551
    return SDL20_WasInit(sdl20flags) | extraflags;
icculus@11
   552
}
icculus@11
   553
icculus@11
   554
void
icculus@11
   555
SDL_QuitSubSystem(Uint32 sdl12flags)
icculus@11
   556
{
icculus@11
   557
    Uint32 sdl20flags = 0;
icculus@11
   558
icculus@19
   559
    #define SETFLAG(flag) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag
icculus@11
   560
    SETFLAG(TIMER);
icculus@11
   561
    SETFLAG(AUDIO);
icculus@11
   562
    SETFLAG(VIDEO);
icculus@11
   563
    SETFLAG(JOYSTICK);
icculus@11
   564
    SETFLAG(NOPARACHUTE);
icculus@9
   565
    // There's no CDROM in 2.0, but we'll just pretend it succeeded.
icculus@9
   566
    #undef SETFLAG
icculus@9
   567
icculus@16
   568
    if (sdl12flags & SDL12_INIT_CDROM)
icculus@16
   569
        CDRomInit = 0;
icculus@16
   570
icculus@17
   571
    // !!! FIXME: reset a bunch of other global variables too.
icculus@17
   572
    if (sdl12flags & SDL12_INIT_VIDEO) {
icculus@18
   573
        EventFilter12 = NULL;
icculus@20
   574
        EventQueueAvailable = EventQueueHead = EventQueueTail = NULL;
icculus@23
   575
        CurrentCursor = NULL;
icculus@17
   576
        SDL20_FreeFormat(VideoInfo.vfmt);
icculus@17
   577
        SDL_zero(VideoInfo);
icculus@17
   578
    }
icculus@17
   579
icculus@9
   580
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   581
    SDL20_QuitSubSystem(sdl20flags);
icculus@9
   582
icculus@11
   583
    // !!! FIXME: UnloadSDL20() ?
icculus@9
   584
}
icculus@9
   585
icculus@9
   586
void
icculus@9
   587
SDL_Quit(void)
icculus@9
   588
{
icculus@17
   589
    // !!! FIXME: reset a bunch of other global variables too.
icculus@18
   590
    EventFilter12 = NULL;
icculus@20
   591
    EventQueueAvailable = EventQueueHead = EventQueueTail = NULL;
icculus@23
   592
    CurrentCursor = NULL;
icculus@17
   593
    SDL20_FreeFormat(VideoInfo.vfmt);
icculus@17
   594
    SDL_zero(VideoInfo);
icculus@16
   595
    CDRomInit = 0;
icculus@9
   596
    SDL20_Quit();
icculus@9
   597
    UnloadSDL20();
icculus@9
   598
}
icculus@9
   599
icculus@11
   600
void
icculus@11
   601
SDL_SetError(const char *fmt, ...)
icculus@11
   602
{
icculus@12
   603
    char *str = NULL;
icculus@12
   604
    va_list ap;
icculus@12
   605
    va_start(ap, fmt);
icculus@12
   606
    vasprintf(&str, fmt, ap);
icculus@12
   607
    va_end(ap);
icculus@12
   608
    if (!str)
icculus@12
   609
        SDL20_OutOfMemory();
icculus@12
   610
    else
icculus@12
   611
    {
icculus@12
   612
        SDL20_SetError("%s", str);
icculus@12
   613
        free(str);
icculus@12
   614
    }
icculus@11
   615
}
icculus@9
   616
icculus@19
   617
const char *
icculus@9
   618
SDL_GetError(void)
icculus@9
   619
{
icculus@9
   620
    if (!Loaded_SDL20)
icculus@9
   621
    {
icculus@19
   622
        static const char noload_errstr[] = "Failed to load SDL 2.0 shared library";
icculus@9
   623
        return noload_errstr;
icculus@9
   624
    }
icculus@9
   625
    return SDL20_GetError();
icculus@9
   626
}
icculus@9
   627
icculus@9
   628
icculus@9
   629
static const char *
icculus@9
   630
GetDriverName(const char *name, char *namebuf, int maxlen)
icculus@9
   631
{
icculus@9
   632
    if (name) {
icculus@9
   633
        if (namebuf) {
icculus@9
   634
            SDL20_strlcpy(namebuf, name, maxlen);
icculus@9
   635
            return namebuf;
icculus@9
   636
        } else {
icculus@9
   637
            return name;
icculus@9
   638
        }
icculus@9
   639
    }
icculus@9
   640
    return NULL;
icculus@9
   641
}
icculus@9
   642
icculus@9
   643
const char *
icculus@9
   644
SDL_AudioDriverName(char *namebuf, int maxlen)
icculus@9
   645
{
icculus@9
   646
    return GetDriverName(SDL20_GetCurrentAudioDriver(), namebuf, maxlen);
icculus@9
   647
}
icculus@9
   648
icculus@9
   649
const char *
icculus@9
   650
SDL_VideoDriverName(char *namebuf, int maxlen)
icculus@9
   651
{
icculus@9
   652
    return GetDriverName(SDL20_GetCurrentVideoDriver(), namebuf, maxlen);
icculus@9
   653
}
icculus@9
   654
icculus@31
   655
int
icculus@31
   656
SDL_PollEvent(SDL12_Event *event12)
icculus@31
   657
{
icculus@31
   658
    EventQueueType *next;
icculus@31
   659
icculus@31
   660
    SDL20_PumpEvents();  /* this will run our filter and build our 1.2 queue. */
icculus@31
   661
icculus@31
   662
    if (EventQueueHead == NULL)
icculus@31
   663
        return 0;  /* no events at the moment. */
icculus@31
   664
icculus@31
   665
    SDL_memcpy(event12, &EventQueueHead->event12, sizeof (SDL12_Event));
icculus@31
   666
    next = EventQueueHead->next;
icculus@31
   667
    EventQueueHead->next = EventQueueAvailable;
icculus@31
   668
    EventQueueAvailable = EventQueueHead;
icculus@31
   669
    EventQueueHead = next;
icculus@31
   670
    return 1;
icculus@31
   671
}
icculus@31
   672
icculus@31
   673
int
icculus@31
   674
SDL_PushEvent(SDL12_Event *event12)
icculus@31
   675
{
icculus@31
   676
    EventQueueType *item = EventQueueAvailable;
icculus@31
   677
    if (item == NULL)
icculus@31
   678
        return -1;  /* no space available at the moment. */
icculus@31
   679
icculus@31
   680
    EventQueueAvailable = item->next;
icculus@31
   681
    if (EventQueueTail)
icculus@31
   682
        EventQueueTail->next = item;
icculus@31
   683
    else
icculus@31
   684
        EventQueueHead = EventQueueTail = item;
icculus@31
   685
    item->next = NULL;
icculus@31
   686
icculus@31
   687
    SDL_memcpy(&item->event12, event12, sizeof (SDL12_Event));
icculus@31
   688
    return 0;
icculus@31
   689
}
icculus@31
   690
icculus@31
   691
int
icculus@31
   692
SDL_PeepEvents(SDL12_Event *events12, int numevents, SDL_eventaction action, Uint32 mask)
icculus@31
   693
{
icculus@31
   694
    if (action == SDL_ADDEVENT)
icculus@31
   695
    {
icculus@31
   696
        int i;
icculus@31
   697
        for (i = 0; i < numevents; i++)
icculus@31
   698
        {
icculus@31
   699
            if (SDL_PushEvent(&events12[i]) == -1)
icculus@31
   700
                break;  /* out of space for more events. */
icculus@31
   701
        }
icculus@31
   702
        return i;
icculus@31
   703
    }
icculus@31
   704
    else if ((action == SDL_PEEKEVENT) || (action == SDL_GETEVENT))
icculus@31
   705
    {
icculus@31
   706
        const SDL_bool isGet = (action == SDL_GETEVENT);
icculus@31
   707
        EventQueueType *prev = NULL;
icculus@31
   708
        EventQueueType *item = EventQueueHead;
icculus@31
   709
        EventQueueType *next = NULL;
icculus@31
   710
        int chosen = 0;
icculus@31
   711
        while (chosen < numevents)
icculus@31
   712
        {
icculus@31
   713
            EventQueueType *nextPrev = item;
icculus@31
   714
            if (!item)
icculus@31
   715
                break;  /* no more events at the moment. */
icculus@31
   716
icculus@31
   717
            next = item->next;  /* copy, since we might overwrite item->next */
icculus@31
   718
icculus@31
   719
            if (mask & (1<<item->event12.type))
icculus@31
   720
            {
icculus@31
   721
                SDL_memcpy(&events12[chosen++], &item->event12, sizeof (SDL12_Event));
icculus@31
   722
                if (isGet)  /* remove from list? */
icculus@31
   723
                {
icculus@31
   724
                    if (prev != NULL)
icculus@31
   725
                        prev->next = next;
icculus@31
   726
                    if (item == EventQueueHead)
icculus@31
   727
                        EventQueueHead = next;
icculus@31
   728
                    if (item == EventQueueTail)
icculus@31
   729
                        EventQueueTail = prev;
icculus@31
   730
icculus@31
   731
                    /* put it back in the free pool. */
icculus@31
   732
                    item->next = EventQueueAvailable;
icculus@31
   733
                    EventQueueAvailable = item;
icculus@31
   734
                    nextPrev = prev;  /* previous item doesn't change. */
icculus@31
   735
                }
icculus@31
   736
            }
icculus@31
   737
icculus@31
   738
            item = next;
icculus@31
   739
            prev = nextPrev;
icculus@31
   740
        }
icculus@31
   741
        return chosen;
icculus@31
   742
    }
icculus@31
   743
icculus@31
   744
    return 0;
icculus@31
   745
}
icculus@31
   746
icculus@31
   747
int
icculus@31
   748
SDL_WaitEvent(SDL12_Event *event12)
icculus@31
   749
{
icculus@31
   750
    /* In 1.2, this only fails (-1) if you haven't SDL_Init()'d. */
icculus@31
   751
    while (!SDL_PollEvent(event12))
icculus@31
   752
        SDL_Delay(10);
icculus@31
   753
    return 1;
icculus@31
   754
}
icculus@31
   755
icculus@32
   756
static SDL_bool
icculus@32
   757
PushEventIfNotFiltered(SDL12_Event *event12)
icculus@32
   758
{
icculus@32
   759
    if (event12->type != SDL12_NOEVENT)
icculus@32
   760
    {
icculus@32
   761
        if (EventStates[event12->type] != SDL_IGNORE)
icculus@32
   762
        {
icculus@32
   763
            if ((!EventFilter12) || (EventFilter12(event12)))
icculus@32
   764
                return (SDL_PushEvent(event12) == 0);
icculus@32
   765
        }
icculus@32
   766
    }
icculus@32
   767
    return SDL_FALSE;
icculus@32
   768
}
icculus@32
   769
icculus@32
   770
Uint8 SDL_GetMouseState(int *x, int *y);
icculus@32
   771
icculus@32
   772
icculus@31
   773
Uint8
icculus@31
   774
SDL_EventState(Uint8 type, int state)
icculus@31
   775
{
icculus@31
   776
    /* the values of "state" match between 1.2 and 2.0 */
icculus@31
   777
    const Uint8 retval = EventStates[type];
icculus@31
   778
    SDL12_Event e;
icculus@31
   779
icculus@31
   780
    if (state != SDL_QUERY)
icculus@31
   781
        EventStates[type] = state;
icculus@31
   782
    if (state == SDL_IGNORE)  /* drop existing events of this type. */
icculus@31
   783
        while (SDL_PeepEvents(&e, 1, SDL_GETEVENT, (1<<type))) {}
icculus@31
   784
icculus@31
   785
    return retval;
icculus@31
   786
}
icculus@31
   787
icculus@18
   788
static int
icculus@18
   789
EventFilter20to12(void *data, SDL_Event *event20)
icculus@15
   790
{
icculus@18
   791
    const int maxUserEvents12 = SDL12_NUMEVENTS - SDL12_USEREVENT;
icculus@18
   792
    SDL12_Event event12;
icculus@32
   793
    int x, y;
icculus@18
   794
icculus@18
   795
    SDL_assert(data == NULL);  /* currently unused. */
icculus@18
   796
icculus@18
   797
    SDL_zero(event12);
icculus@18
   798
icculus@18
   799
    switch (event20->type)
icculus@18
   800
    {
icculus@18
   801
        case SDL_QUIT:
icculus@31
   802
            event12.type = SDL12_QUIT;
icculus@18
   803
            break;
icculus@18
   804
icculus@18
   805
        case SDL_WINDOWEVENT:
icculus@18
   806
            switch (event20->window.event)
icculus@18
   807
            {
icculus@18
   808
                case SDL_WINDOWEVENT_CLOSE:
icculus@31
   809
                    event12.type = SDL12_QUIT;
icculus@18
   810
                    break;
icculus@18
   811
icculus@18
   812
                case SDL_WINDOWEVENT_SHOWN:
icculus@18
   813
                case SDL_WINDOWEVENT_EXPOSED:
icculus@31
   814
                    event12.type = SDL12_VIDEOEXPOSE;
icculus@18
   815
                    break;
icculus@18
   816
icculus@18
   817
                case SDL_WINDOWEVENT_RESIZED:
icculus@18
   818
                case SDL_WINDOWEVENT_SIZE_CHANGED:  // !!! FIXME: what's the difference between RESIZED and SIZE_CHANGED?
icculus@31
   819
                    event12.type = SDL12_VIDEORESIZE;
icculus@31
   820
                    event12.resize.w = event20->window.data1;
icculus@31
   821
                    event12.resize.h = event20->window.data2;
icculus@18
   822
                    break;
icculus@18
   823
icculus@18
   824
                case SDL_WINDOWEVENT_MINIMIZED:
icculus@31
   825
                    event12.type = SDL12_ACTIVEEVENT;
icculus@31
   826
                    event12.active.gain = 0;
icculus@31
   827
                    event12.active.state = SDL12_APPACTIVE;
icculus@18
   828
                    break;
icculus@18
   829
icculus@18
   830
                case SDL_WINDOWEVENT_RESTORED:
icculus@31
   831
                    event12.type = SDL12_ACTIVEEVENT;
icculus@31
   832
                    event12.active.gain = 1;
icculus@31
   833
                    event12.active.state = SDL12_APPACTIVE;
icculus@18
   834
                    break;
icculus@18
   835
icculus@18
   836
                case SDL_WINDOWEVENT_ENTER:
icculus@31
   837
                    event12.type = SDL12_ACTIVEEVENT;
icculus@31
   838
                    event12.active.gain = 1;
icculus@31
   839
                    event12.active.state = SDL12_APPMOUSEFOCUS;
icculus@18
   840
                    break;
icculus@18
   841
icculus@18
   842
                case SDL_WINDOWEVENT_LEAVE:
icculus@31
   843
                    event12.type = SDL12_ACTIVEEVENT;
icculus@31
   844
                    event12.active.gain = 0;
icculus@31
   845
                    event12.active.state = SDL12_APPMOUSEFOCUS;
icculus@18
   846
                    break;
icculus@18
   847
icculus@18
   848
                case SDL_WINDOWEVENT_FOCUS_GAINED:
icculus@31
   849
                    event12.type = SDL12_ACTIVEEVENT;
icculus@31
   850
                    event12.active.gain = 1;
icculus@31
   851
                    event12.active.state = SDL12_APPINPUTFOCUS;
icculus@18
   852
                    break;
icculus@18
   853
icculus@18
   854
                case SDL_WINDOWEVENT_FOCUS_LOST:
icculus@31
   855
                    event12.type = SDL12_ACTIVEEVENT;
icculus@31
   856
                    event12.active.gain = 0;
icculus@31
   857
                    event12.active.state = SDL12_APPINPUTFOCUS;
icculus@18
   858
                    break;
icculus@18
   859
            }
icculus@18
   860
            break;
icculus@18
   861
icculus@18
   862
        // !!! FIXME: this is sort of a mess to convert.
icculus@18
   863
        //case SDL_SYSWMEVENT:
icculus@18
   864
icculus@18
   865
        // !!! FIXME: write me
icculus@18
   866
        case SDL_KEYDOWN:
icculus@18
   867
        case SDL_KEYUP:
icculus@18
   868
            return 0;
icculus@18
   869
icculus@18
   870
        // !!! FIXME: write me
icculus@18
   871
        case SDL_TEXTEDITING:
icculus@18
   872
        case SDL_TEXTINPUT:
icculus@18
   873
            return 0;
icculus@18
   874
icculus@18
   875
        case SDL_MOUSEMOTION:
icculus@31
   876
        	event12.type = SDL12_MOUSEMOTION;
icculus@31
   877
            event12.motion.which = (Uint8) event20->motion.which;
icculus@31
   878
            event12.motion.state = event20->motion.state;
icculus@31
   879
            event12.motion.x = (Uint16) event20->motion.x;
icculus@31
   880
            event12.motion.y = (Uint16) event20->motion.y;
icculus@31
   881
            event12.motion.xrel = (Sint16) event20->motion.xrel;
icculus@31
   882
            event12.motion.yrel = (Sint16) event20->motion.yrel;
icculus@18
   883
            break;
icculus@18
   884
icculus@18
   885
        case SDL_MOUSEBUTTONDOWN:
icculus@31
   886
        	event12.type = SDL12_MOUSEBUTTONDOWN;
icculus@31
   887
            event12.button.which = (Uint8) event20->button.which;
icculus@31
   888
            event12.button.button = event20->button.button;
icculus@31
   889
            event12.button.state = event20->button.state;
icculus@31
   890
            event12.button.x = (Uint16) event20->button.x;
icculus@31
   891
            event12.button.y = (Uint16) event20->button.y;
icculus@18
   892
            break;
icculus@18
   893
icculus@18
   894
        case SDL_MOUSEBUTTONUP:
icculus@31
   895
        	event12.type = SDL12_MOUSEBUTTONUP;
icculus@31
   896
            event12.button.which = (Uint8) event20->button.which;
icculus@31
   897
            event12.button.button = event20->button.button;
icculus@31
   898
            event12.button.state = event20->button.state;
icculus@31
   899
            event12.button.x = (Uint16) event20->button.x;
icculus@31
   900
            event12.button.y = (Uint16) event20->button.y;
icculus@18
   901
            break;
icculus@18
   902
icculus@18
   903
        case SDL_MOUSEWHEEL:
icculus@32
   904
            if (event20->wheel.y == 0)
icculus@32
   905
                break;  /* don't support horizontal wheels in 1.2. */
icculus@32
   906
icculus@32
   907
            event12.type = SDL12_MOUSEBUTTONDOWN;
icculus@32
   908
            event12.button.which = (Uint8) event20->wheel.which;
icculus@32
   909
            event12.button.button = (event20->wheel.y > 0) ? 4 : 5;  /* wheelup is 4, down is 5. */
icculus@32
   910
            event12.button.state = SDL_GetMouseState(&x, &y);
icculus@32
   911
            event12.button.x = (Uint16) x;
icculus@32
   912
            event12.button.y = (Uint16) y;
icculus@32
   913
            PushEventIfNotFiltered(&event12);
icculus@32
   914
icculus@32
   915
            event12.type = SDL12_MOUSEBUTTONUP;  /* immediately release mouse "button" at the end of this switch. */
icculus@18
   916
            break;
icculus@18
   917
icculus@18
   918
        case SDL_JOYAXISMOTION:
icculus@31
   919
            event12.type = SDL12_JOYAXISMOTION;
icculus@31
   920
            event12.jaxis.which = (Uint8) event20->jaxis.which;
icculus@31
   921
            event12.jaxis.axis = event20->jaxis.axis;
icculus@31
   922
            event12.jaxis.value = event20->jaxis.value;
icculus@18
   923
            break;
icculus@18
   924
icculus@18
   925
        case SDL_JOYBALLMOTION:
icculus@31
   926
            event12.type = SDL12_JOYBALLMOTION;
icculus@31
   927
            event12.jball.which = (Uint8) event20->jball.which;
icculus@31
   928
            event12.jball.ball = event20->jball.ball;
icculus@31
   929
            event12.jball.xrel = event20->jball.xrel;
icculus@31
   930
            event12.jball.yrel = event20->jball.yrel;
icculus@18
   931
            break;
icculus@18
   932
icculus@18
   933
        case SDL_JOYHATMOTION:
icculus@31
   934
            event12.type = SDL12_JOYHATMOTION;
icculus@31
   935
            event12.jhat.which = (Uint8) event20->jhat.which;
icculus@31
   936
            event12.jhat.hat = event20->jhat.hat;
icculus@31
   937
            event12.jhat.value = event20->jhat.value;
icculus@18
   938
            break;
icculus@18
   939
icculus@18
   940
        case SDL_JOYBUTTONDOWN:
icculus@31
   941
            event12.type = SDL12_JOYBUTTONDOWN;
icculus@31
   942
            event12.jbutton.which = (Uint8) event20->jbutton.which;
icculus@31
   943
            event12.jbutton.button = event20->jbutton.button;
icculus@31
   944
            event12.jbutton.state = event20->jbutton.state;
icculus@18
   945
            break;
icculus@18
   946
icculus@18
   947
        case SDL_JOYBUTTONUP:
icculus@31
   948
            event12.type = SDL12_JOYBUTTONUP;
icculus@31
   949
            event12.jbutton.which = (Uint8) event20->jbutton.which;
icculus@31
   950
            event12.jbutton.button = event20->jbutton.button;
icculus@31
   951
            event12.jbutton.state = event20->jbutton.state;
icculus@18
   952
            break;
icculus@18
   953
icculus@18
   954
        //case SDL_JOYDEVICEADDED:
icculus@18
   955
        //case SDL_JOYDEVICEREMOVED:
icculus@18
   956
	    //case SDL_CONTROLLERAXISMOTION:
icculus@18
   957
	    //case SDL_CONTROLLERBUTTONDOWN:
icculus@18
   958
	    //case SDL_CONTROLLERBUTTONUP:
icculus@18
   959
	    //case SDL_CONTROLLERDEVICEADDED:
icculus@18
   960
	    //case SDL_CONTROLLERDEVICEREMOVED:
icculus@18
   961
	    //case SDL_CONTROLLERDEVICEREMAPPED:
icculus@18
   962
        //case SDL_FINGERDOWN:
icculus@18
   963
        //case SDL_FINGERUP:
icculus@18
   964
        //case SDL_FINGERMOTION:
icculus@18
   965
        //case SDL_DOLLARGESTURE:
icculus@18
   966
        //case SDL_DOLLARRECORD:
icculus@18
   967
        //case SDL_MULTIGESTURE:
icculus@18
   968
        //case SDL_CLIPBOARDUPDATE:
icculus@18
   969
        //case SDL_DROPFILE:
icculus@18
   970
icculus@18
   971
        default:
icculus@18
   972
            return 0;  /* drop everything else. */
icculus@18
   973
    }
icculus@18
   974
icculus@32
   975
    PushEventIfNotFiltered(&event12);
icculus@18
   976
icculus@18
   977
    return 0;  /* always drop it from the 2.0 event queue. */
icculus@18
   978
}
icculus@18
   979
icculus@18
   980
void
icculus@18
   981
SDL_SetEventFilter(SDL12_EventFilter filter12)
icculus@18
   982
{
icculus@18
   983
    /* We always have a filter installed, but will call the app's too. */
icculus@18
   984
    EventFilter12 = filter12;
icculus@18
   985
}
icculus@18
   986
icculus@18
   987
SDL12_EventFilter
icculus@18
   988
SDL_GetEventFilter(void)
icculus@18
   989
{
icculus@18
   990
    return EventFilter12;
icculus@18
   991
}
icculus@18
   992
icculus@15
   993
icculus@15
   994
SDL12_Surface *
icculus@15
   995
Surface20to12(SDL_Surface *surface20)
icculus@15
   996
{
icculus@15
   997
    SDL12_Surface *surface12 = NULL;
icculus@15
   998
    SDL12_Palette *palette12 = NULL;
icculus@15
   999
    SDL12_PixelFormat *format12 = NULL;
icculus@31
  1000
    Uint32 flags = 0;
icculus@15
  1001
icculus@15
  1002
    if (!surface20)
icculus@15
  1003
        return NULL;
icculus@15
  1004
icculus@15
  1005
    surface12 = (SDL12_Surface *) SDL20_malloc(sizeof (SDL12_Surface));
icculus@15
  1006
    if (!surface12)
icculus@15
  1007
        goto failed;
icculus@15
  1008
icculus@15
  1009
    palette12 = (SDL12_Palette *) SDL20_malloc(sizeof (SDL12_Palette));
icculus@15
  1010
    if (!palette12)
icculus@15
  1011
        goto failed;
icculus@15
  1012
icculus@15
  1013
    format12 = (SDL12_PixelFormat *) SDL20_malloc(sizeof (SDL12_PixelFormat));
icculus@15
  1014
    if (!format12)
icculus@15
  1015
        goto failed;
icculus@15
  1016
icculus@15
  1017
    SDL_zerop(palette12);
icculus@31
  1018
    palette12->ncolors = surface20->format->palette->ncolors;
icculus@31
  1019
    palette12->colors = surface20->format->palette->colors;
icculus@15
  1020
icculus@15
  1021
    SDL_zerop(format12);
icculus@15
  1022
    format12->palette = palette12;
icculus@15
  1023
    format12->BitsPerPixel = surface20->format->BitsPerPixel;
icculus@15
  1024
    format12->BytesPerPixel = surface20->format->BytesPerPixel;
icculus@15
  1025
    format12->Rloss = surface20->format->Rloss;
icculus@15
  1026
    format12->Gloss = surface20->format->Gloss;
icculus@15
  1027
    format12->Bloss = surface20->format->Bloss;
icculus@15
  1028
    format12->Aloss = surface20->format->Aloss;
icculus@15
  1029
    format12->Rshift = surface20->format->Rshift;
icculus@15
  1030
    format12->Gshift = surface20->format->Gshift;
icculus@15
  1031
    format12->Bshift = surface20->format->Bshift;
icculus@15
  1032
    format12->Ashift = surface20->format->Ashift;
icculus@15
  1033
    format12->Rmask = surface20->format->Rmask;
icculus@15
  1034
    format12->Gmask = surface20->format->Gmask;
icculus@15
  1035
    format12->Bmask = surface20->format->Bmask;
icculus@15
  1036
    format12->Amask = surface20->format->Amask;
icculus@15
  1037
    /* !!! FIXME: format12->colorkey; */
icculus@15
  1038
    /* !!! FIXME: format12->alpha; */
icculus@15
  1039
icculus@15
  1040
    SDL_zerop(surface12);
icculus@15
  1041
    flags = surface20->flags;
icculus@15
  1042
    #define MAPSURFACEFLAGS(fl) { if (surface20->flags & SDL_##fl) { surface12->flags |= SDL12_##fl; flags &= ~SDL_##fl; } }
icculus@15
  1043
    MAPSURFACEFLAGS(PREALLOC);
icculus@15
  1044
    MAPSURFACEFLAGS(RLEACCEL);
icculus@15
  1045
    MAPSURFACEFLAGS(DONTFREE);
icculus@15
  1046
    #undef MAPSURFACEFLAGS
icculus@31
  1047
    SDL_assert(flags == 0);  /* non-zero if there's a flag we didn't map. */
icculus@15
  1048
icculus@15
  1049
    surface12->format = format12;
icculus@15
  1050
    surface12->w = surface20->w;
icculus@15
  1051
    surface12->h = surface20->h;
icculus@15
  1052
    surface12->pitch = (Uint16) surface20->pitch;  /* !!! FIXME: make sure this fits in a Uint16 */
icculus@15
  1053
    surface12->pixels = surface20->pixels;
icculus@15
  1054
    surface12->offset = 0;
icculus@15
  1055
    surface12->hwdata = surface20;
icculus@15
  1056
    SDL20_memcpy(&surface12->clip_rect, &surface20->clip_rect, sizeof (SDL_Rect));
icculus@15
  1057
    surface12->refcount = surface20->refcount;
icculus@15
  1058
icculus@15
  1059
    return surface12;
icculus@15
  1060
icculus@15
  1061
failed:
icculus@15
  1062
    SDL20_free(surface12);
icculus@15
  1063
    SDL20_free(palette12);
icculus@15
  1064
    SDL20_free(format12);
icculus@15
  1065
    return NULL;
icculus@15
  1066
}
icculus@15
  1067
icculus@15
  1068
SDL12_Surface *
icculus@15
  1069
SDL_CreateRGBSurface(Uint32 sdl12flags, int width, int height, int depth, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
icculus@15
  1070
{
icculus@15
  1071
    SDL_Surface *surface20 = SDL20_CreateRGBSurface(0, width, height, depth, Rmask, Gmask, Bmask, Amask);
icculus@15
  1072
    SDL12_Surface *surface12 = Surface20to12(surface20);
icculus@15
  1073
    if (!surface12) {
icculus@15
  1074
        SDL20_FreeSurface(surface20);
icculus@15
  1075
        return NULL;
icculus@15
  1076
    }
icculus@15
  1077
icculus@31
  1078
    SDL_assert(surface12->flags == 0);  // shouldn't have prealloc, rleaccel, or dontfree.
icculus@15
  1079
    return surface12;
icculus@15
  1080
}
icculus@15
  1081
icculus@15
  1082
SDL12_Surface *
icculus@15
  1083
SDL_CreateRGBSurfaceFrom(void *pixels, int width, int height, int depth, int pitch, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
icculus@15
  1084
{
icculus@31
  1085
    SDL_Surface *surface20 = SDL20_CreateRGBSurfaceFrom(pixels, width, height, depth, pitch, Rmask, Gmask, Bmask, Amask);
icculus@15
  1086
    SDL12_Surface *surface12 = Surface20to12(surface20);
icculus@15
  1087
    if (!surface12) {
icculus@15
  1088
        SDL20_FreeSurface(surface20);
icculus@15
  1089
        return NULL;
icculus@15
  1090
    }
icculus@15
  1091
icculus@31
  1092
    SDL_assert(surface12->flags == SDL12_PREALLOC);  // should _only_ have prealloc.
icculus@15
  1093
    return surface12;
icculus@15
  1094
}
icculus@15
  1095
icculus@15
  1096
void SDL_FreeSurface(SDL12_Surface *surface12)
icculus@15
  1097
{
icculus@15
  1098
    if (surface12) {
icculus@24
  1099
        SDL20_FreeSurface(surface12->hwdata);
icculus@15
  1100
        if (surface12->format) {
icculus@15
  1101
            SDL20_free(surface12->format->palette);
icculus@15
  1102
            SDL20_free(surface12->format);
icculus@15
  1103
        }
icculus@15
  1104
        SDL20_free(surface12);
icculus@15
  1105
    }
icculus@15
  1106
}
icculus@15
  1107
icculus@24
  1108
void
icculus@24
  1109
SDL_GetClipRect(SDL12_Surface *surface12, SDL_Rect *rect)
icculus@24
  1110
{
icculus@24
  1111
    if (surface12 && rect)
icculus@24
  1112
	    SDL_memcpy(rect, &surface12->clip_rect, sizeof (SDL_Rect));
icculus@24
  1113
}
icculus@24
  1114
icculus@24
  1115
SDL_bool
icculus@24
  1116
SDL_SetClipRect(SDL12_Surface *surface12, const SDL_Rect *rect)
icculus@24
  1117
{
icculus@24
  1118
    SDL_bool retval = SDL_FALSE;
icculus@24
  1119
    if (surface12)
icculus@24
  1120
    {
icculus@24
  1121
        retval = SDL20_SetClipRect(surface12->hwdata, rect);
icculus@24
  1122
        SDL20_GetClipRect(surface12->hwdata, &surface12->clip_rect);
icculus@24
  1123
    }
icculus@24
  1124
    return retval;
icculus@24
  1125
}
icculus@24
  1126
icculus@25
  1127
int
icculus@25
  1128
SDL_FillRect(SDL12_Surface *dst, SDL_Rect *dstrect, Uint32 color)
icculus@25
  1129
{
icculus@25
  1130
    const SDL_Rect orig_dstrect = *dstrect;
icculus@31
  1131
    const int retval = SDL20_FillRect(dst->hwdata, &orig_dstrect, color);
icculus@25
  1132
    if (retval != -1)
icculus@25
  1133
    {
icculus@25
  1134
        if (dstrect)  /* 1.2 stores the clip intersection in dstrect */
icculus@31
  1135
            SDL20_IntersectRect(&orig_dstrect, &dst->clip_rect, dstrect);
icculus@25
  1136
    }
icculus@25
  1137
    return retval;
icculus@25
  1138
}
icculus@25
  1139
icculus@25
  1140
icculus@17
  1141
static SDL_PixelFormat *
icculus@31
  1142
PixelFormat12to20(SDL_PixelFormat *format20, SDL_Palette *palette20, const SDL12_PixelFormat *format12)
icculus@17
  1143
{
icculus@17
  1144
    palette20->ncolors = format12->palette->ncolors;
icculus@17
  1145
    palette20->colors = format12->palette->colors;
icculus@17
  1146
    palette20->version = 1;
icculus@17
  1147
    palette20->refcount = 1;
icculus@17
  1148
    format20->format = SDL_MasksToPixelFormatEnum(format12->BitsPerPixel, format12->Rmask, format12->Gmask, format12->Bmask, format12->Amask);
icculus@17
  1149
    format20->palette = palette20;
icculus@17
  1150
    format20->BitsPerPixel = format12->BitsPerPixel;
icculus@17
  1151
    format20->BytesPerPixel = format12->BytesPerPixel;
icculus@17
  1152
    format20->Rmask = format12->Rmask;
icculus@17
  1153
    format20->Gmask = format12->Gmask;
icculus@17
  1154
    format20->Bmask = format12->Bmask;
icculus@17
  1155
    format20->Amask = format12->Amask;
icculus@17
  1156
    format20->Rloss = format12->Rloss;
icculus@17
  1157
    format20->Gloss = format12->Gloss;
icculus@17
  1158
    format20->Bloss = format12->Bloss;
icculus@17
  1159
    format20->Aloss = format12->Aloss;
icculus@17
  1160
    format20->Rshift = format12->Rshift;
icculus@17
  1161
    format20->Gshift = format12->Gshift;
icculus@17
  1162
    format20->Bshift = format12->Bshift;
icculus@17
  1163
    format20->Ashift = format12->Ashift;
icculus@17
  1164
    format20->refcount = 1;
icculus@17
  1165
    format20->next = NULL;
icculus@17
  1166
    return format20;
icculus@17
  1167
}
icculus@17
  1168
icculus@17
  1169
Uint32
icculus@17
  1170
SDL_MapRGB(const SDL12_PixelFormat *format12, Uint8 r, Uint8 g, Uint8 b)
icculus@17
  1171
{
icculus@17
  1172
    /* This is probably way slower than apps expect. */
icculus@17
  1173
    SDL_PixelFormat format20;
icculus@17
  1174
    SDL_Palette palette20;
icculus@17
  1175
    return SDL20_MapRGB(PixelFormat12to20(&format20, &palette20, format12), r, g, b);
icculus@17
  1176
}
icculus@17
  1177
icculus@17
  1178
Uint32
icculus@17
  1179
SDL_MapRGBA(const SDL12_PixelFormat *format12, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
icculus@17
  1180
{
icculus@17
  1181
    /* This is probably way slower than apps expect. */
icculus@17
  1182
    SDL_PixelFormat format20;
icculus@17
  1183
    SDL_Palette palette20;
icculus@17
  1184
    return SDL20_MapRGBA(PixelFormat12to20(&format20, &palette20, format12), r, g, b, a);
icculus@17
  1185
}
icculus@17
  1186
icculus@17
  1187
void
icculus@17
  1188
SDL_GetRGB(Uint32 pixel, const SDL12_PixelFormat *format12, Uint8 *r, Uint8 *g, Uint8 *b)
icculus@17
  1189
{
icculus@17
  1190
    /* This is probably way slower than apps expect. */
icculus@17
  1191
    SDL_PixelFormat format20;
icculus@17
  1192
    SDL_Palette palette20;
icculus@17
  1193
    return SDL20_GetRGB(pixel, PixelFormat12to20(&format20, &palette20, format12), r, g, b);
icculus@17
  1194
}
icculus@17
  1195
icculus@17
  1196
void
icculus@17
  1197
SDL_GetRGBA(Uint32 pixel, const SDL12_PixelFormat *format12, Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *a)
icculus@17
  1198
{
icculus@17
  1199
    /* This is probably way slower than apps expect. */
icculus@17
  1200
    SDL_PixelFormat format20;
icculus@17
  1201
    SDL_Palette palette20;
icculus@31
  1202
    return SDL20_GetRGBA(pixel, PixelFormat12to20(&format20, &palette20, format12), r, g, b, a);
icculus@17
  1203
}
icculus@15
  1204
icculus@9
  1205
const SDL12_VideoInfo *
icculus@9
  1206
SDL_GetVideoInfo(void)
icculus@9
  1207
{
icculus@9
  1208
    SDL_DisplayMode mode;
icculus@9
  1209
icculus@17
  1210
    if (!VideoInfo.vfmt && SDL20_GetDesktopDisplayMode(VideoDisplayIndex, &mode) == 0) {
icculus@17
  1211
        VideoInfo.vfmt = SDL20_AllocFormat(mode.format);
icculus@17
  1212
        VideoInfo.current_w = mode.w;
icculus@17
  1213
        VideoInfo.current_h = mode.h;
icculus@9
  1214
        // !!! FIXME
icculus@17
  1215
        //VideoInfo.wm_available = 1;
icculus@17
  1216
        //VideoInfo.video_mem = 1024 * 256;
icculus@9
  1217
    }
icculus@17
  1218
    return &VideoInfo;
icculus@9
  1219
}
icculus@9
  1220
icculus@9
  1221
int
icculus@9
  1222
SDL_VideoModeOK(int width, int height, int bpp, Uint32 sdl12flags)
icculus@9
  1223
{
icculus@9
  1224
    int i, nummodes, actual_bpp = 0;
icculus@9
  1225
icculus@9
  1226
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@9
  1227
        return 0;
icculus@9
  1228
    }
icculus@9
  1229
icculus@9
  1230
    if (!(sdl12flags & SDL12_FULLSCREEN)) {
icculus@9
  1231
        SDL_DisplayMode mode;
icculus@16
  1232
        SDL20_GetDesktopDisplayMode(VideoDisplayIndex, &mode);
icculus@9
  1233
        return SDL_BITSPERPIXEL(mode.format);
icculus@9
  1234
    }
icculus@9
  1235
icculus@16
  1236
    nummodes = SDL20_GetNumDisplayModes(VideoDisplayIndex);
icculus@9
  1237
    for (i = 0; i < nummodes; ++i) {
icculus@9
  1238
        SDL_DisplayMode mode;
icculus@16
  1239
        SDL20_GetDisplayMode(VideoDisplayIndex, i, &mode);
icculus@9
  1240
        if (!mode.w || !mode.h || (width == mode.w && height == mode.h)) {
icculus@9
  1241
            if (!mode.format) {
icculus@9
  1242
                return bpp;
icculus@9
  1243
            }
icculus@9
  1244
            if (SDL_BITSPERPIXEL(mode.format) >= (Uint32) bpp) {
icculus@9
  1245
                actual_bpp = SDL_BITSPERPIXEL(mode.format);
icculus@9
  1246
            }
icculus@9
  1247
        }
icculus@9
  1248
    }
icculus@9
  1249
    return actual_bpp;
icculus@9
  1250
}
icculus@9
  1251
icculus@9
  1252
SDL_Rect **
icculus@17
  1253
SDL_ListModes(const SDL12_PixelFormat *format, Uint32 flags)
icculus@9
  1254
{
icculus@9
  1255
    int i, nmodes;
icculus@9
  1256
    SDL_Rect **modes;
icculus@9
  1257
icculus@9
  1258
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@9
  1259
        return NULL;
icculus@9
  1260
    }
icculus@9
  1261
icculus@9
  1262
    if (!(flags & SDL12_FULLSCREEN)) {
icculus@9
  1263
        return (SDL_Rect **) (-1);
icculus@9
  1264
    }
icculus@9
  1265
icculus@9
  1266
    if (!format) {
icculus@17
  1267
        format = VideoInfo.vfmt;
icculus@9
  1268
    }
icculus@9
  1269
icculus@17
  1270
    /* !!! FIXME: Memory leak */
icculus@9
  1271
    nmodes = 0;
icculus@9
  1272
    modes = NULL;
icculus@16
  1273
    for (i = 0; i < SDL20_GetNumDisplayModes(VideoDisplayIndex); ++i) {
icculus@9
  1274
        SDL_DisplayMode mode;
icculus@9
  1275
        int bpp;
icculus@9
  1276
icculus@16
  1277
        SDL20_GetDisplayMode(VideoDisplayIndex, i, &mode);
icculus@9
  1278
        if (!mode.w || !mode.h) {
icculus@9
  1279
            return (SDL_Rect **) (-1);
icculus@9
  1280
        }
icculus@9
  1281
        
icculus@9
  1282
        /* Copied from src/video/SDL_pixels.c:SDL_PixelFormatEnumToMasks */
icculus@9
  1283
        if (SDL_BYTESPERPIXEL(mode.format) <= 2) {
icculus@9
  1284
            bpp = SDL_BITSPERPIXEL(mode.format);
icculus@9
  1285
        } else {
icculus@9
  1286
            bpp = SDL_BYTESPERPIXEL(mode.format) * 8;
icculus@9
  1287
        }
icculus@9
  1288
icculus@9
  1289
        if (bpp != format->BitsPerPixel) {
icculus@9
  1290
            continue;
icculus@9
  1291
        }
icculus@9
  1292
        if (nmodes > 0 && modes[nmodes - 1]->w == mode.w
icculus@9
  1293
            && modes[nmodes - 1]->h == mode.h) {
icculus@9
  1294
            continue;
icculus@9
  1295
        }
icculus@9
  1296
icculus@17
  1297
        modes = SDL20_realloc(modes, (nmodes + 2) * sizeof(*modes));
icculus@9
  1298
        if (!modes) {
icculus@9
  1299
            return NULL;
icculus@9
  1300
        }
icculus@17
  1301
        modes[nmodes] = (SDL_Rect *) SDL20_malloc(sizeof(SDL_Rect));
icculus@9
  1302
        if (!modes[nmodes]) {
icculus@9
  1303
            return NULL;
icculus@9
  1304
        }
icculus@9
  1305
        modes[nmodes]->x = 0;
icculus@9
  1306
        modes[nmodes]->y = 0;
icculus@9
  1307
        modes[nmodes]->w = mode.w;
icculus@9
  1308
        modes[nmodes]->h = mode.h;
icculus@9
  1309
        ++nmodes;
icculus@9
  1310
    }
icculus@9
  1311
    if (modes) {
icculus@9
  1312
        modes[nmodes] = NULL;
icculus@9
  1313
    }
icculus@9
  1314
    return modes;
icculus@9
  1315
}
icculus@9
  1316
icculus@31
  1317
void
icculus@31
  1318
SDL_FreeCursor(SDL12_Cursor *cursor12)
icculus@31
  1319
{
icculus@31
  1320
    if (cursor12)
icculus@31
  1321
    {
icculus@31
  1322
        if (cursor12->wm_cursor)
icculus@31
  1323
            SDL20_FreeCursor(cursor12->wm_cursor);
icculus@31
  1324
        SDL20_free(cursor12->data);
icculus@31
  1325
        SDL20_free(cursor12->mask);
icculus@31
  1326
        SDL20_free(cursor12);
icculus@31
  1327
    }
icculus@31
  1328
}
icculus@23
  1329
icculus@23
  1330
SDL12_Cursor *
icculus@23
  1331
SDL_CreateCursor(Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
icculus@23
  1332
{
icculus@23
  1333
    const size_t datasize = h * (w / 8);
icculus@23
  1334
    SDL_Cursor *cursor20 = NULL;
icculus@23
  1335
    SDL12_Cursor *retval = NULL;
icculus@23
  1336
icculus@23
  1337
    retval = (SDL12_Cursor *) SDL20_malloc(sizeof (SDL12_Cursor));
icculus@23
  1338
    if (!retval)
icculus@23
  1339
        goto outofmem;
icculus@23
  1340
icculus@23
  1341
    SDL_zerop(retval);
icculus@23
  1342
icculus@23
  1343
    retval->data = (Uint8 *) SDL20_malloc(datasize);
icculus@31
  1344
    if (!retval->data)
icculus@23
  1345
        goto outofmem;
icculus@23
  1346
icculus@23
  1347
    retval->mask = (Uint8 *) SDL20_malloc(datasize);
icculus@31
  1348
    if (!retval->mask)
icculus@23
  1349
        goto outofmem;
icculus@23
  1350
icculus@23
  1351
    cursor20 = SDL20_CreateCursor(data, mask, w, h, hot_x, hot_y);
icculus@23
  1352
    if (!cursor20)
icculus@23
  1353
        goto failed;
icculus@23
  1354
icculus@23
  1355
    retval->area.w = w;
icculus@23
  1356
    retval->area.h = h;
icculus@23
  1357
    retval->hot_x = hot_x;
icculus@23
  1358
    retval->hot_y = hot_y;
icculus@23
  1359
    retval->wm_cursor = cursor20;
icculus@23
  1360
    /* we always leave retval->save as null pointers. */
icculus@23
  1361
icculus@23
  1362
    SDL20_memcpy(retval->data, data, datasize);
icculus@23
  1363
    SDL20_memcpy(retval->mask, mask, datasize);
icculus@23
  1364
icculus@23
  1365
    return retval;
icculus@23
  1366
icculus@23
  1367
outofmem:
icculus@31
  1368
    SDL20_OutOfMemory();
icculus@23
  1369
icculus@23
  1370
failed:
icculus@23
  1371
    SDL_FreeCursor(retval);
icculus@23
  1372
    return NULL;
icculus@23
  1373
}
icculus@23
  1374
icculus@23
  1375
void
icculus@23
  1376
SDL_SetCursor(SDL12_Cursor *cursor)
icculus@23
  1377
{
icculus@23
  1378
    CurrentCursor = cursor;
icculus@23
  1379
    SDL20_SetCursor(cursor ? cursor->wm_cursor : NULL);
icculus@23
  1380
}
icculus@23
  1381
icculus@23
  1382
SDL12_Cursor *
icculus@23
  1383
SDL_GetCursor(void)
icculus@23
  1384
{
icculus@23
  1385
    return CurrentCursor;
icculus@23
  1386
}
icculus@23
  1387
icculus@9
  1388
static void
icculus@9
  1389
GetEnvironmentWindowPosition(int w, int h, int *x, int *y)
icculus@9
  1390
{
icculus@16
  1391
    int display = VideoDisplayIndex;
icculus@9
  1392
    const char *window = SDL_getenv("SDL_VIDEO_WINDOW_POS");
icculus@9
  1393
    const char *center = SDL_getenv("SDL_VIDEO_CENTERED");
icculus@9
  1394
    if (window) {
icculus@9
  1395
        if (SDL_sscanf(window, "%d,%d", x, y) == 2) {
icculus@9
  1396
            return;
icculus@9
  1397
        }
icculus@9
  1398
        if (SDL_strcmp(window, "center") == 0) {
icculus@9
  1399
            center = window;
icculus@9
  1400
        }
icculus@9
  1401
    }
icculus@9
  1402
    if (center) {
icculus@9
  1403
        *x = SDL_WINDOWPOS_CENTERED_DISPLAY(display);
icculus@9
  1404
        *y = SDL_WINDOWPOS_CENTERED_DISPLAY(display);
icculus@9
  1405
    }
icculus@9
  1406
}
icculus@9
  1407
icculus@9
  1408
static void
icculus@9
  1409
ClearVideoSurface()
icculus@9
  1410
{
icculus@16
  1411
    if (ShadowSurface) {
icculus@17
  1412
        SDL20_FillRect(ShadowSurface, NULL,
icculus@17
  1413
            SDL20_MapRGB(ShadowSurface->format, 0, 0, 0));
icculus@9
  1414
    }
icculus@17
  1415
    SDL20_FillRect(WindowSurface, NULL, 0);
icculus@19
  1416
    SDL20_UpdateWindowSurface(VideoWindow20);
icculus@9
  1417
}
icculus@9
  1418
icculus@9
  1419
static void
icculus@19
  1420
SetupScreenSaver(int flags12)
icculus@9
  1421
{
icculus@9
  1422
    const char *env;
icculus@9
  1423
    SDL_bool allow_screensaver;
icculus@9
  1424
icculus@9
  1425
    /* Allow environment override of screensaver disable */
icculus@9
  1426
    env = SDL_getenv("SDL_VIDEO_ALLOW_SCREENSAVER");
icculus@9
  1427
    if (env) {
icculus@9
  1428
        allow_screensaver = SDL_atoi(env) ? SDL_TRUE : SDL_FALSE;
icculus@19
  1429
    } else if (flags12 & SDL12_FULLSCREEN) {
icculus@9
  1430
        allow_screensaver = SDL_FALSE;
icculus@9
  1431
    } else {
icculus@9
  1432
        allow_screensaver = SDL_TRUE;
icculus@9
  1433
    }
icculus@9
  1434
    if (allow_screensaver) {
icculus@17
  1435
        SDL20_EnableScreenSaver();
icculus@9
  1436
    } else {
icculus@17
  1437
        SDL20_DisableScreenSaver();
icculus@9
  1438
    }
icculus@9
  1439
}
icculus@9
  1440
icculus@9
  1441
static int
icculus@19
  1442
ResizeVideoMode(int width, int height, int bpp, Uint32 flags12)
icculus@9
  1443
{
icculus@9
  1444
    int w, h;
icculus@9
  1445
icculus@9
  1446
    /* We can't resize something we don't have... */
icculus@16
  1447
    if (!VideoSurface) {
icculus@9
  1448
        return -1;
icculus@9
  1449
    }
icculus@9
  1450
icculus@9
  1451
    /* We probably have to recreate the window in fullscreen mode */
icculus@19
  1452
    if (flags12 & SDL12_FULLSCREEN) {
icculus@9
  1453
        return -1;
icculus@9
  1454
    }
icculus@9
  1455
icculus@9
  1456
    /* I don't think there's any change we can gracefully make in flags */
icculus@19
  1457
    if (flags12 != VideoFlags) {
icculus@9
  1458
        return -1;
icculus@9
  1459
    }
icculus@16
  1460
    if (bpp != VideoSurface->format->BitsPerPixel) {
icculus@9
  1461
        return -1;
icculus@9
  1462
    }
icculus@9
  1463
icculus@9
  1464
    /* Resize the window */
icculus@19
  1465
    SDL20_GetWindowSize(VideoWindow20, &w, &h);
icculus@9
  1466
    if (w != width || h != height) {
icculus@19
  1467
        SDL20_SetWindowSize(VideoWindow20, width, height);
icculus@9
  1468
    }
icculus@9
  1469
icculus@9
  1470
    /* If we're in OpenGL mode, just resize the stub surface and we're done! */
icculus@19
  1471
    if (flags12 & SDL12_OPENGL) {
icculus@16
  1472
        VideoSurface->w = width;
icculus@16
  1473
        VideoSurface->h = height;
icculus@9
  1474
        return 0;
icculus@9
  1475
    }
icculus@9
  1476
icculus@19
  1477
    WindowSurface = SDL20_GetWindowSurface(VideoWindow20);
icculus@16
  1478
    if (!WindowSurface) {
icculus@9
  1479
        return -1;
icculus@9
  1480
    }
icculus@16
  1481
    if (VideoSurface->format != WindowSurface->format) {
icculus@9
  1482
        return -1;
icculus@9
  1483
    }
icculus@16
  1484
    VideoSurface->w = width;
icculus@16
  1485
    VideoSurface->h = height;
icculus@16
  1486
    VideoSurface->pixels = WindowSurface->pixels;
icculus@16
  1487
    VideoSurface->pitch = WindowSurface->pitch;
icculus@19
  1488
    SDL20_SetClipRect(VideoSurface, NULL);
icculus@9
  1489
icculus@16
  1490
    if (ShadowSurface) {
icculus@16
  1491
        ShadowSurface->w = width;
icculus@16
  1492
        ShadowSurface->h = height;
icculus@19
  1493
        ShadowSurface->pitch = SDL20_CalculatePitch(ShadowSurface);
icculus@16
  1494
        ShadowSurface->pixels =
icculus@19
  1495
            SDL20_realloc(ShadowSurface->pixels,
icculus@16
  1496
                        ShadowSurface->h * ShadowSurface->pitch);
icculus@19
  1497
        SDL20_SetClipRect(ShadowSurface, NULL);
icculus@19
  1498
        SDL20_InvalidateMap(ShadowSurface->map);
icculus@9
  1499
    } else {
icculus@16
  1500
        PublicSurface = VideoSurface;
icculus@9
  1501
    }
icculus@9
  1502
icculus@9
  1503
    ClearVideoSurface();
icculus@9
  1504
icculus@9
  1505
    return 0;
icculus@9
  1506
}
icculus@9
  1507
icculus@9
  1508
SDL_Surface *
icculus@19
  1509
SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags12)
icculus@9
  1510
{
icculus@9
  1511
    SDL_DisplayMode desktop_mode;
icculus@16
  1512
    int display = VideoDisplayIndex;
icculus@9
  1513
    int window_x = SDL_WINDOWPOS_UNDEFINED_DISPLAY(display);
icculus@9
  1514
    int window_y = SDL_WINDOWPOS_UNDEFINED_DISPLAY(display);
icculus@9
  1515
    int window_w;
icculus@9
  1516
    int window_h;
icculus@19
  1517
    Uint32 window_flags20;
icculus@19
  1518
    Uint32 surface_flags12;
icculus@19
  1519
icculus@19
  1520
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@19
  1521
        if (SDL_Init(SDL12_INIT_VIDEO | SDL12_INIT_NOPARACHUTE) < 0) {
icculus@9
  1522
            return NULL;
icculus@9
  1523
        }
icculus@9
  1524
    }
icculus@9
  1525
icculus@19
  1526
    SDL20_GetDesktopDisplayMode(display, &desktop_mode);
icculus@9
  1527
icculus@9
  1528
    if (width == 0) {
icculus@9
  1529
        width = desktop_mode.w;
icculus@9
  1530
    }
icculus@9
  1531
    if (height == 0) {
icculus@9
  1532
        height = desktop_mode.h;
icculus@9
  1533
    }
icculus@9
  1534
    if (bpp == 0) {
icculus@9
  1535
        bpp = SDL_BITSPERPIXEL(desktop_mode.format);
icculus@9
  1536
    }
icculus@9
  1537
icculus@9
  1538
    /* See if we can simply resize the existing window and surface */
icculus@19
  1539
    if (ResizeVideoMode(width, height, bpp, flags12) == 0) {
icculus@16
  1540
        return PublicSurface;
icculus@9
  1541
    }
icculus@9
  1542
icculus@9
  1543
    /* Destroy existing window */
icculus@16
  1544
    PublicSurface = NULL;
icculus@16
  1545
    if (ShadowSurface) {
icculus@16
  1546
        ShadowSurface->flags &= ~SDL_DONTFREE;
icculus@19
  1547
        SDL20_FreeSurface(ShadowSurface);
icculus@16
  1548
        ShadowSurface = NULL;
icculus@9
  1549
    }
icculus@16
  1550
    if (VideoSurface) {
icculus@16
  1551
        VideoSurface->flags &= ~SDL_DONTFREE;
icculus@19
  1552
        SDL20_FreeSurface(VideoSurface);
icculus@16
  1553
        VideoSurface = NULL;
icculus@9
  1554
    }
icculus@16
  1555
    if (VideoContext) {
icculus@9
  1556
        /* SDL_GL_MakeCurrent(0, NULL); *//* Doesn't do anything */
icculus@19
  1557
        SDL20_GL_DeleteContext(VideoContext);
icculus@16
  1558
        VideoContext = NULL;
icculus@9
  1559
    }
icculus@19
  1560
    if (VideoWindow20) {
icculus@19
  1561
        SDL20_GetWindowPosition(VideoWindow20, &window_x, &window_y);
icculus@19
  1562
        SDL20_DestroyWindow(VideoWindow20);
icculus@9
  1563
    }
icculus@9
  1564
icculus@19
  1565
    /* Create a new window */
icculus@19
  1566
    window_flags20 = SDL_WINDOW_SHOWN;
icculus@19
  1567
    if (flags12 & SDL12_FULLSCREEN) {
icculus@19
  1568
        window_flags20 |= SDL_WINDOW_FULLSCREEN;
icculus@9
  1569
    }
icculus@19
  1570
    if (flags12 & SDL12_OPENGL) {
icculus@19
  1571
        window_flags20 |= SDL_WINDOW_OPENGL;
icculus@9
  1572
    }
icculus@19
  1573
    if (flags12 & SDL12_RESIZABLE) {
icculus@19
  1574
        window_flags20 |= SDL_WINDOW_RESIZABLE;
icculus@9
  1575
    }
icculus@19
  1576
    if (flags12 & SDL12_NOFRAME) {
icculus@19
  1577
        window_flags20 |= SDL_WINDOW_BORDERLESS;
icculus@9
  1578
    }
icculus@9
  1579
    GetEnvironmentWindowPosition(width, height, &window_x, &window_y);
icculus@19
  1580
    VideoWindow20 =
icculus@19
  1581
        SDL20_CreateWindow(WindowTitle, window_x, window_y, width, height,
icculus@19
  1582
                         window_flags20);
icculus@19
  1583
    if (!VideoWindow20) {
icculus@9
  1584
        return NULL;
icculus@9
  1585
    }
icculus@19
  1586
    SDL20_SetWindowIcon(VideoWindow20, VideoIcon);
icculus@19
  1587
icculus@19
  1588
    SetupScreenSaver(flags12);
icculus@19
  1589
icculus@19
  1590
    window_flags20 = SDL_GetWindowFlags(VideoWindow20);
icculus@19
  1591
    surface_flags12 = 0;
icculus@19
  1592
    if (window_flags20 & SDL_WINDOW_FULLSCREEN) {
icculus@19
  1593
        surface_flags12 |= SDL_FULLSCREEN;
icculus@9
  1594
    }
icculus@19
  1595
    if ((window_flags & SDL_WINDOW_OPENGL) && (flags12 & SDL_OPENGL)) {
icculus@19
  1596
        surface_flags12 |= SDL_OPENGL;
icculus@9
  1597
    }
icculus@9
  1598
    if (window_flags & SDL_WINDOW_RESIZABLE) {
icculus@19
  1599
        surface_flags12 |= SDL_RESIZABLE;
icculus@9
  1600
    }
icculus@9
  1601
    if (window_flags & SDL_WINDOW_BORDERLESS) {
icculus@19
  1602
        surface_flags12 |= SDL_NOFRAME;
icculus@9
  1603
    }
icculus@9
  1604
icculus@19
  1605
    VideoFlags = flags12;
icculus@9
  1606
icculus@9
  1607
    /* If we're in OpenGL mode, just create a stub surface and we're done! */
icculus@19
  1608
    if (flags12 & SDL_OPENGL) {
icculus@31
  1609
icculus@19
  1610
        VideoContext = SDL_GL_CreateContext(VideoWindow20);
icculus@16
  1611
        if (!VideoContext) {
icculus@9
  1612
            return NULL;
icculus@9
  1613
        }
icculus@19
  1614
        if (SDL_GL_MakeCurrent(VideoWindow20, VideoContext) < 0) {
icculus@9
  1615
            return NULL;
icculus@9
  1616
        }
icculus@30
  1617
icculus@31
  1618
        SDL20_GL_SetSwapInterval(SwapInterval);  /* don't care if this fails. */
icculus@30
  1619
icculus@16
  1620
        VideoSurface =
icculus@9
  1621
            SDL_CreateRGBSurfaceFrom(NULL, width, height, bpp, 0, 0, 0, 0, 0);
icculus@16
  1622
        if (!VideoSurface) {
icculus@9
  1623
            return NULL;
icculus@9
  1624
        }
icculus@19
  1625
        VideoSurface->flags |= surface_flags12;
icculus@16
  1626
        PublicSurface = VideoSurface;
icculus@16
  1627
        return PublicSurface;
icculus@9
  1628
    }
icculus@9
  1629
icculus@9
  1630
    /* Create the screen surface */
icculus@19
  1631
    WindowSurface = SDL_GetWindowSurface(VideoWindow20);
icculus@16
  1632
    if (!WindowSurface) {
icculus@9
  1633
        return NULL;
icculus@9
  1634
    }
icculus@9
  1635
icculus@9
  1636
    /* Center the public surface in the window surface */
icculus@19
  1637
    SDL_GetWindowSize(VideoWindow20, &window_w, &window_h);
icculus@16
  1638
    VideoViewport.x = (window_w - width)/2;
icculus@16
  1639
    VideoViewport.y = (window_h - height)/2;
icculus@16
  1640
    VideoViewport.w = width;
icculus@16
  1641
    VideoViewport.h = height;
icculus@9
  1642
icculus@16
  1643
    VideoSurface = SDL_CreateRGBSurfaceFrom(NULL, 0, 0, 32, 0, 0, 0, 0, 0);
icculus@19
  1644
    VideoSurface->flags |= surface_flags12;
icculus@19
  1645
    VideoSurface->flags |= SDL12_DONTFREE;
icculus@16
  1646
    SDL_FreeFormat(VideoSurface->format);
icculus@16
  1647
    VideoSurface->format = WindowSurface->format;
icculus@16
  1648
    VideoSurface->format->refcount++;
icculus@16
  1649
    VideoSurface->w = width;
icculus@16
  1650
    VideoSurface->h = height;
icculus@16
  1651
    VideoSurface->pitch = WindowSurface->pitch;
icculus@16
  1652
    VideoSurface->pixels = (void *)((Uint8 *)WindowSurface->pixels +
icculus@16
  1653
        VideoViewport.y * VideoSurface->pitch +
icculus@16
  1654
        VideoViewport.x  * VideoSurface->format->BytesPerPixel);
icculus@16
  1655
    SDL_SetClipRect(VideoSurface, NULL);
icculus@9
  1656
icculus@9
  1657
    /* Create a shadow surface if necessary */
icculus@16
  1658
    if ((bpp != VideoSurface->format->BitsPerPixel)
icculus@19
  1659
        && !(flags12 & SDL12_ANYFORMAT)) {
icculus@16
  1660
        ShadowSurface =
icculus@9
  1661
            SDL_CreateRGBSurface(0, width, height, bpp, 0, 0, 0, 0);
icculus@16
  1662
        if (!ShadowSurface) {
icculus@9
  1663
            return NULL;
icculus@9
  1664
        }
icculus@19
  1665
        ShadowSurface->flags |= surface_flags12;
icculus@19
  1666
        ShadowSurface->flags |= SDL12_DONTFREE;
icculus@9
  1667
icculus@16
  1668
        /* 8-bit ShadowSurface surfaces report that they have exclusive palette */
icculus@16
  1669
        if (ShadowSurface->format->palette) {
icculus@19
  1670
            ShadowSurface->flags |= SDL12_HWPALETTE;
icculus@16
  1671
            SDL_DitherColors(ShadowSurface->format->palette->colors,
icculus@16
  1672
                             ShadowSurface->format->BitsPerPixel);
icculus@9
  1673
        }
icculus@16
  1674
        SDL_FillRect(ShadowSurface, NULL,
icculus@16
  1675
            SDL_MapRGB(ShadowSurface->format, 0, 0, 0));
icculus@9
  1676
    }
icculus@16
  1677
    PublicSurface =
icculus@16
  1678
        (ShadowSurface ? ShadowSurface : VideoSurface);
icculus@9
  1679
icculus@9
  1680
    ClearVideoSurface();
icculus@9
  1681
icculus@9
  1682
    /* We're finally done! */
icculus@16
  1683
    return PublicSurface;
icculus@9
  1684
}
icculus@9
  1685
icculus@9
  1686
SDL_Surface *
icculus@9
  1687
SDL_GetVideoSurface(void)
icculus@9
  1688
{
icculus@16
  1689
    return PublicSurface;
icculus@9
  1690
}
icculus@9
  1691
icculus@9
  1692
int
icculus@9
  1693
SDL_SetAlpha(SDL_Surface * surface, Uint32 flag, Uint8 value)
icculus@9
  1694
{
icculus@9
  1695
    if (flag & SDL_SRCALPHA) {
icculus@9
  1696
        /* According to the docs, value is ignored for alpha surfaces */
icculus@9
  1697
        if (surface->format->Amask) {
icculus@9
  1698
            value = 0xFF;
icculus@9
  1699
        }
icculus@9
  1700
        SDL_SetSurfaceAlphaMod(surface, value);
icculus@9
  1701
        SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_BLEND);
icculus@9
  1702
    } else {
icculus@9
  1703
        SDL_SetSurfaceAlphaMod(surface, 0xFF);
icculus@9
  1704
        SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_NONE);
icculus@9
  1705
    }
icculus@9
  1706
    SDL_SetSurfaceRLE(surface, (flag & SDL_RLEACCEL));
icculus@9
  1707
icculus@9
  1708
    return 0;
icculus@9
  1709
}
icculus@9
  1710
icculus@19
  1711
SDL12_Surface *
icculus@19
  1712
SDL_DisplayFormat(SDL12_Surface *surface12)
icculus@9
  1713
{
icculus@19
  1714
    SDL12_PixelFormat *format;
icculus@9
  1715
icculus@16
  1716
    if (!PublicSurface) {
icculus@19
  1717
        SDL20_SetError("No video mode has been set");
icculus@9
  1718
        return NULL;
icculus@9
  1719
    }
icculus@16
  1720
    format = PublicSurface->format;
icculus@9
  1721
icculus@9
  1722
    /* Set the flags appropriate for copying to display surface */
icculus@19
  1723
    return SDL_ConvertSurface(surface, format, SDL12_RLEACCEL);
icculus@9
  1724
}
icculus@9
  1725
icculus@19
  1726
SDL12_Surface *
icculus@19
  1727
SDL_DisplayFormatAlpha(SDL12_Surface *surface)
icculus@9
  1728
{
icculus@9
  1729
    SDL_PixelFormat *vf;
icculus@9
  1730
    SDL_PixelFormat *format;
icculus@9
  1731
    SDL_Surface *converted;
icculus@9
  1732
    /* default to ARGB8888 */
icculus@9
  1733
    Uint32 amask = 0xff000000;
icculus@9
  1734
    Uint32 rmask = 0x00ff0000;
icculus@9
  1735
    Uint32 gmask = 0x0000ff00;
icculus@9
  1736
    Uint32 bmask = 0x000000ff;
icculus@9
  1737
icculus@16
  1738
    if (!PublicSurface) {
icculus@9
  1739
        SDL_SetError("No video mode has been set");
icculus@9
  1740
        return NULL;
icculus@9
  1741
    }
icculus@16
  1742
    vf = PublicSurface->format;
icculus@9
  1743
icculus@9
  1744
    switch (vf->BytesPerPixel) {
icculus@9
  1745
    case 2:
icculus@9
  1746
        /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}.
icculus@9
  1747
           For anything else (like ARGB4444) it doesn't matter
icculus@9
  1748
           since we have no special code for it anyway */
icculus@9
  1749
        if ((vf->Rmask == 0x1f) &&
icculus@9
  1750
            (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) {
icculus@9
  1751
            rmask = 0xff;
icculus@9
  1752
            bmask = 0xff0000;
icculus@9
  1753
        }
icculus@9
  1754
        break;
icculus@9
  1755
icculus@9
  1756
    case 3:
icculus@9
  1757
    case 4:
icculus@9
  1758
        /* Keep the video format, as long as the high 8 bits are
icculus@9
  1759
           unused or alpha */
icculus@9
  1760
        if ((vf->Rmask == 0xff) && (vf->Bmask == 0xff0000)) {
icculus@9
  1761
            rmask = 0xff;
icculus@9
  1762
            bmask = 0xff0000;
icculus@9
  1763
        }
icculus@9
  1764
        break;
icculus@9
  1765
icculus@9
  1766
    default:
icculus@9
  1767
        /* We have no other optimised formats right now. When/if a new
icculus@9
  1768
           optimised alpha format is written, add the converter here */
icculus@9
  1769
        break;
icculus@9
  1770
    }
icculus@9
  1771
    format = SDL_AllocFormat(SDL_MasksToPixelFormatEnum(32, rmask,
icculus@9
  1772
                                                            gmask,
icculus@9
  1773
                                                            bmask,
icculus@9
  1774
                                                            amask));
icculus@9
  1775
    if (!format) {
icculus@9
  1776
        return NULL;
icculus@9
  1777
    }
icculus@9
  1778
    converted = SDL_ConvertSurface(surface, format, SDL_RLEACCEL);
icculus@9
  1779
    SDL_FreeFormat(format);
icculus@9
  1780
    return converted;
icculus@9
  1781
}
icculus@9
  1782
icculus@9
  1783
void
icculus@9
  1784
SDL_UpdateRects(SDL_Surface * screen, int numrects, SDL_Rect * rects)
icculus@9
  1785
{
icculus@9
  1786
    int i;
icculus@9
  1787
icculus@16
  1788
    if (screen == ShadowSurface) {
icculus@9
  1789
        for (i = 0; i < numrects; ++i) {
icculus@16
  1790
            SDL_BlitSurface(ShadowSurface, &rects[i], VideoSurface,
icculus@9
  1791
                            &rects[i]);
icculus@9
  1792
        }
icculus@9
  1793
icculus@9
  1794
        /* Fall through to video surface update */
icculus@16
  1795
        screen = VideoSurface;
icculus@9
  1796
    }
icculus@16
  1797
    if (screen == VideoSurface) {
icculus@16
  1798
        if (VideoViewport.x || VideoViewport.y) {
icculus@9
  1799
            SDL_Rect *stackrects = SDL_stack_alloc(SDL_Rect, numrects);
icculus@9
  1800
            SDL_Rect *stackrect;
icculus@9
  1801
            const SDL_Rect *rect;
icculus@9
  1802
            
icculus@9
  1803
            /* Offset all the rectangles before updating */
icculus@9
  1804
            for (i = 0; i < numrects; ++i) {
icculus@9
  1805
                rect = &rects[i];
icculus@9
  1806
                stackrect = &stackrects[i];
icculus@16
  1807
                stackrect->x = VideoViewport.x + rect->x;
icculus@16
  1808
                stackrect->y = VideoViewport.y + rect->y;
icculus@9
  1809
                stackrect->w = rect->w;
icculus@9
  1810
                stackrect->h = rect->h;
icculus@9
  1811
            }
icculus@19
  1812
            SDL_UpdateWindowSurfaceRects(VideoWindow20, stackrects, numrects);
icculus@9
  1813
            SDL_stack_free(stackrects);
icculus@9
  1814
        } else {
icculus@19
  1815
            SDL_UpdateWindowSurfaceRects(VideoWindow20, rects, numrects);
icculus@9
  1816
        }
icculus@9
  1817
    }
icculus@9
  1818
}
icculus@9
  1819
icculus@9
  1820
void
icculus@31
  1821
SDL_UpdateRect(SDL_Surface * screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h)
icculus@31
  1822
{
icculus@31
  1823
    if (screen) {
icculus@31
  1824
        SDL_Rect rect;
icculus@31
  1825
icculus@31
  1826
        /* Fill the rectangle */
icculus@31
  1827
        rect.x = (int) x;
icculus@31
  1828
        rect.y = (int) y;
icculus@31
  1829
        rect.w = (int) (w ? w : screen->w);
icculus@31
  1830
        rect.h = (int) (h ? h : screen->h);
icculus@31
  1831
        SDL_UpdateRects(screen, 1, &rect);
icculus@31
  1832
    }
icculus@31
  1833
}
icculus@31
  1834
icculus@31
  1835
int
icculus@31
  1836
SDL_Flip(SDL_Surface * screen)
icculus@31
  1837
{
icculus@31
  1838
    SDL_UpdateRect(screen, 0, 0, 0, 0);
icculus@31
  1839
    return 0;
icculus@31
  1840
}
icculus@31
  1841
icculus@31
  1842
void
icculus@9
  1843
SDL_WM_SetCaption(const char *title, const char *icon)
icculus@9
  1844
{
icculus@16
  1845
    if (WindowTitle) {
icculus@31
  1846
        SDL20_free(WindowTitle);
icculus@9
  1847
    }
icculus@16
  1848
    if (WindowIconTitle) {
icculus@31
  1849
        SDL20_free(WindowIconTitle);
icculus@9
  1850
    }
icculus@16
  1851
    WindowTitle = title ? SDL_strdup(title) : NULL;
icculus@16
  1852
    WindowIconTitle = icon ? SDL_strdup(icon) : NULL;
icculus@19
  1853
    SDL_SetWindowTitle(VideoWindow20, WindowTitle);
icculus@9
  1854
}
icculus@9
  1855
icculus@9
  1856
void
icculus@9
  1857
SDL_WM_GetCaption(const char **title, const char **icon)
icculus@9
  1858
{
icculus@9
  1859
    if (title) {
icculus@16
  1860
        *title = WindowTitle;
icculus@9
  1861
    }
icculus@9
  1862
    if (icon) {
icculus@16
  1863
        *icon = WindowIconTitle;
icculus@9
  1864
    }
icculus@9
  1865
}
icculus@9
  1866
icculus@9
  1867
void
icculus@9
  1868
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
icculus@9
  1869
{
icculus@9
  1870
    // !!! FIXME: free previous icon?
icculus@16
  1871
    VideoIcon = icon;
icculus@16
  1872
    ++VideoIcon->refcount;
icculus@9
  1873
}
icculus@9
  1874
icculus@9
  1875
int
icculus@9
  1876
SDL_WM_IconifyWindow(void)
icculus@9
  1877
{
icculus@19
  1878
    SDL_MinimizeWindow(VideoWindow20);
icculus@9
  1879
    return 0;
icculus@9
  1880
}
icculus@9
  1881
icculus@9
  1882
int
icculus@9
  1883
SDL_WM_ToggleFullScreen(SDL_Surface * surface)
icculus@9
  1884
{
icculus@9
  1885
    int length;
icculus@9
  1886
    void *pixels;
icculus@9
  1887
    Uint8 *src, *dst;
icculus@9
  1888
    int row;
icculus@9
  1889
    int window_w;
icculus@9
  1890
    int window_h;
icculus@9
  1891
icculus@16
  1892
    if (!PublicSurface) {
icculus@9
  1893
        SDL_SetError("SDL_SetVideoMode() hasn't been called");
icculus@9
  1894
        return 0;
icculus@9
  1895
    }
icculus@9
  1896
icculus@9
  1897
    /* Copy the old bits out */
icculus@16
  1898
    length = PublicSurface->w * PublicSurface->format->BytesPerPixel;
icculus@31
  1899
    pixels = SDL20_malloc(PublicSurface->h * length);
icculus@16
  1900
    if (pixels && PublicSurface->pixels) {
icculus@16
  1901
        src = (Uint8*)PublicSurface->pixels;
icculus@9
  1902
        dst = (Uint8*)pixels;
icculus@16
  1903
        for (row = 0; row < PublicSurface->h; ++row) {
icculus@9
  1904
            SDL_memcpy(dst, src, length);
icculus@16
  1905
            src += PublicSurface->pitch;
icculus@9
  1906
            dst += length;
icculus@9
  1907
        }
icculus@9
  1908
    }
icculus@9
  1909
icculus@9
  1910
    /* Do the physical mode switch */
icculus@19
  1911
    if (SDL_GetWindowFlags(VideoWindow20) & SDL_WINDOW_FULLSCREEN) {
icculus@19
  1912
        if (SDL_SetWindowFullscreen(VideoWindow20, 0) < 0) {
icculus@9
  1913
            return 0;
icculus@9
  1914
        }
icculus@16
  1915
        PublicSurface->flags &= ~SDL_FULLSCREEN;
icculus@9
  1916
    } else {
icculus@19
  1917
        if (SDL_SetWindowFullscreen(VideoWindow20, 1) < 0) {
icculus@9
  1918
            return 0;
icculus@9
  1919
        }
icculus@16
  1920
        PublicSurface->flags |= SDL_FULLSCREEN;
icculus@9
  1921
    }
icculus@9
  1922
icculus@9
  1923
    /* Recreate the screen surface */
icculus@19
  1924
    WindowSurface = SDL_GetWindowSurface(VideoWindow20);
icculus@16
  1925
    if (!WindowSurface) {
icculus@9
  1926
        /* We're totally hosed... */
icculus@9
  1927
        return 0;
icculus@9
  1928
    }
icculus@9
  1929
icculus@9
  1930
    /* Center the public surface in the window surface */
icculus@19
  1931
    SDL_GetWindowSize(VideoWindow20, &window_w, &window_h);
icculus@16
  1932
    VideoViewport.x = (window_w - VideoSurface->w)/2;
icculus@16
  1933
    VideoViewport.y = (window_h - VideoSurface->h)/2;
icculus@16
  1934
    VideoViewport.w = VideoSurface->w;
icculus@16
  1935
    VideoViewport.h = VideoSurface->h;
icculus@9
  1936
icculus@9
  1937
    /* Do some shuffling behind the application's back if format changes */
icculus@16
  1938
    if (VideoSurface->format->format != WindowSurface->format->format) {
icculus@16
  1939
        if (ShadowSurface) {
icculus@16
  1940
            if (ShadowSurface->format->format == WindowSurface->format->format) {
icculus@9
  1941
                /* Whee!  We don't need a shadow surface anymore! */
icculus@16
  1942
                VideoSurface->flags &= ~SDL_DONTFREE;
icculus@16
  1943
                SDL_FreeSurface(VideoSurface);
icculus@31
  1944
                SDL20_free(ShadowSurface->pixels);
icculus@16
  1945
                VideoSurface = ShadowSurface;
icculus@16
  1946
                VideoSurface->flags |= SDL_PREALLOC;
icculus@16
  1947
                ShadowSurface = NULL;
icculus@9
  1948
            } else {
icculus@9
  1949
                /* No problem, just change the video surface format */
icculus@16
  1950
                SDL_FreeFormat(VideoSurface->format);
icculus@16
  1951
                VideoSurface->format = WindowSurface->format;
icculus@16
  1952
                VideoSurface->format->refcount++;
icculus@16
  1953
                SDL_InvalidateMap(ShadowSurface->map);
icculus@9
  1954
            }
icculus@9
  1955
        } else {
icculus@9
  1956
            /* We can make the video surface the shadow surface */
icculus@16
  1957
            ShadowSurface = VideoSurface;
icculus@16
  1958
            ShadowSurface->pitch = SDL_CalculatePitch(ShadowSurface);
icculus@31
  1959
            ShadowSurface->pixels = SDL20_malloc(ShadowSurface->h * ShadowSurface->pitch);
icculus@16
  1960
            if (!ShadowSurface->pixels) {
icculus@9
  1961
                /* Uh oh, we're hosed */
icculus@16
  1962
                ShadowSurface = NULL;
icculus@9
  1963
                return 0;
icculus@9
  1964
            }
icculus@16
  1965
            ShadowSurface->flags &= ~SDL_PREALLOC;
icculus@9
  1966
icculus@16
  1967
            VideoSurface = SDL_CreateRGBSurfaceFrom(NULL, 0, 0, 32, 0, 0, 0, 0, 0);
icculus@16
  1968
            VideoSurface->flags = ShadowSurface->flags;
icculus@16
  1969
            VideoSurface->flags |= SDL_PREALLOC;
icculus@16
  1970
            SDL_FreeFormat(VideoSurface->format);
icculus@16
  1971
            VideoSurface->format = WindowSurface->format;
icculus@16
  1972
            VideoSurface->format->refcount++;
icculus@16
  1973
            VideoSurface->w = ShadowSurface->w;
icculus@16
  1974
            VideoSurface->h = ShadowSurface->h;
icculus@9
  1975
        }
icculus@9
  1976
    }
icculus@9
  1977
icculus@9
  1978
    /* Update the video surface */
icculus@16
  1979
    VideoSurface->pitch = WindowSurface->pitch;
icculus@16
  1980
    VideoSurface->pixels = (void *)((Uint8 *)WindowSurface->pixels +
icculus@16
  1981
        VideoViewport.y * VideoSurface->pitch +
icculus@16
  1982
        VideoViewport.x  * VideoSurface->format->BytesPerPixel);
icculus@16
  1983
    SDL_SetClipRect(VideoSurface, NULL);
icculus@9
  1984
icculus@9
  1985
    /* Copy the old bits back */
icculus@9
  1986
    if (pixels) {
icculus@9
  1987
        src = (Uint8*)pixels;
icculus@16
  1988
        dst = (Uint8*)PublicSurface->pixels;
icculus@16
  1989
        for (row = 0; row < PublicSurface->h; ++row) {
icculus@9
  1990
            SDL_memcpy(dst, src, length);
icculus@9
  1991
            src += length;
icculus@16
  1992
            dst += PublicSurface->pitch;
icculus@9
  1993
        }
icculus@16
  1994
        SDL_Flip(PublicSurface);
icculus@31
  1995
        SDL20_free(pixels);
icculus@9
  1996
    }
icculus@9
  1997
icculus@9
  1998
    /* We're done! */
icculus@9
  1999
    return 1;
icculus@9
  2000
}
icculus@9
  2001
icculus@31
  2002
typedef enum
icculus@9
  2003
{
icculus@31
  2004
    SDL12_GRAB_QUERY = -1,
icculus@31
  2005
    SDL12_GRAB_OFF = 0,
icculus@31
  2006
    SDL12_GRAB_ON = 1
icculus@31
  2007
} SDL12_GrabMode;
icculus@31
  2008
icculus@31
  2009
SDL12_GrabMode
icculus@31
  2010
SDL_WM_GrabInput(SDL12_GrabMode mode)
icculus@31
  2011
{
icculus@31
  2012
    if (mode != SDL12_GRAB_QUERY) {
icculus@31
  2013
        SDL_SetWindowGrab(VideoWindow20, (mode == SDL_GRAB_ON));
icculus@9
  2014
    }
icculus@31
  2015
    return SDL_GetWindowGrab(VideoWindow20) ? SDL12_GRAB_ON : SDL12_GRAB_OFF;
icculus@9
  2016
}
icculus@9
  2017
icculus@29
  2018
Uint8
icculus@29
  2019
SDL_GetMouseState(int *x, int *y)
icculus@29
  2020
{
icculus@29
  2021
    const Uint32 state20 = SDL20_GetMouseState(x, y);
icculus@29
  2022
    Uint8 retval = (state20 & 0x7);  /* left, right, and middle will match. */
icculus@29
  2023
icculus@29
  2024
    /* the X[12] buttons are different in 1.2; mousewheel was in the way. */
icculus@29
  2025
    if (state20 & SDL_BUTTON(SDL_BUTTON_X1))
icculus@29
  2026
        retval |= (1<<5);
icculus@29
  2027
    if (state20 & SDL_BUTTON(SDL_BUTTON_X2))
icculus@29
  2028
        retval |= (1<<6);
icculus@29
  2029
icculus@29
  2030
    return retval;
icculus@29
  2031
}
icculus@29
  2032
icculus@9
  2033
void
icculus@9
  2034
SDL_WarpMouse(Uint16 x, Uint16 y)
icculus@9
  2035
{
icculus@19
  2036
    SDL_WarpMouseInWindow(VideoWindow20, x, y);
icculus@9
  2037
}
icculus@9
  2038
icculus@9
  2039
Uint8
icculus@9
  2040
SDL_GetAppState(void)
icculus@9
  2041
{
icculus@9
  2042
    Uint8 state = 0;
icculus@9
  2043
    Uint32 flags = 0;
icculus@9
  2044
icculus@19
  2045
    flags = SDL_GetWindowFlags(VideoWindow20);
icculus@9
  2046
    if ((flags & SDL_WINDOW_SHOWN) && !(flags & SDL_WINDOW_MINIMIZED)) {
icculus@9
  2047
        state |= SDL_APPACTIVE;
icculus@9
  2048
    }
icculus@9
  2049
    if (flags & SDL_WINDOW_INPUT_FOCUS) {
icculus@9
  2050
        state |= SDL_APPINPUTFOCUS;
icculus@9
  2051
    }
icculus@9
  2052
    if (flags & SDL_WINDOW_MOUSE_FOCUS) {
icculus@9
  2053
        state |= SDL_APPMOUSEFOCUS;
icculus@9
  2054
    }
icculus@9
  2055
    return state;
icculus@9
  2056
}
icculus@9
  2057
icculus@9
  2058
const SDL_version *
icculus@9
  2059
SDL_Linked_Version(void)
icculus@9
  2060
{
icculus@9
  2061
    static SDL_version version;
icculus@9
  2062
    SDL_VERSION(&version);
icculus@9
  2063
    return &version;
icculus@9
  2064
}
icculus@9
  2065
icculus@9
  2066
int
icculus@9
  2067
SDL_SetPalette(SDL_Surface * surface, int flags, const SDL_Color * colors,
icculus@9
  2068
               int firstcolor, int ncolors)
icculus@9
  2069
{
icculus@9
  2070
    return SDL_SetColors(surface, colors, firstcolor, ncolors);
icculus@9
  2071
}
icculus@9
  2072
icculus@9
  2073
int
icculus@9
  2074
SDL_SetColors(SDL_Surface * surface, const SDL_Color * colors, int firstcolor,
icculus@9
  2075
              int ncolors)
icculus@9
  2076
{
icculus@9
  2077
    if (SDL_SetPaletteColors
icculus@9
  2078
        (surface->format->palette, colors, firstcolor, ncolors) == 0) {
icculus@9
  2079
        return 1;
icculus@9
  2080
    } else {
icculus@9
  2081
        return 0;
icculus@9
  2082
    }
icculus@9
  2083
}
icculus@9
  2084
icculus@9
  2085
int
icculus@9
  2086
SDL_GetWMInfo(SDL_SysWMinfo * info)
icculus@9
  2087
{
icculus@19
  2088
    return SDL_GetWindowWMInfo(VideoWindow20, info);
icculus@9
  2089
}
icculus@9
  2090
icculus@9
  2091
#if 0
icculus@9
  2092
void
icculus@9
  2093
SDL_MoveCursor(int x, int y)
icculus@9
  2094
{
icculus@9
  2095
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2096
icculus@9
  2097
    /* Erase and update the current mouse position */
icculus@9
  2098
    if (SHOULD_DRAWCURSOR(SDL_cursorstate)) {
icculus@9
  2099
        /* Erase and redraw mouse cursor in new position */
icculus@9
  2100
        SDL_LockCursor();
icculus@16
  2101
        SDL_EraseCursor(VideoSurface);
icculus@9
  2102
        SDL_cursor->area.x = (x - SDL_cursor->hot_x);
icculus@9
  2103
        SDL_cursor->area.y = (y - SDL_cursor->hot_y);
icculus@16
  2104
        SDL_DrawCursor(VideoSurface);
icculus@9
  2105
        SDL_UnlockCursor();
icculus@9
  2106
    } else if (_this->MoveWMCursor) {
icculus@9
  2107
        _this->MoveWMCursor(_this, x, y);
icculus@9
  2108
    }
icculus@9
  2109
}
icculus@9
  2110
icculus@9
  2111
/* Keep track of the current cursor colors */
icculus@9
  2112
static int palette_changed = 1;
icculus@9
  2113
static Uint8 pixels8[2];
icculus@9
  2114
icculus@9
  2115
void
icculus@9
  2116
SDL_CursorPaletteChanged(void)
icculus@9
  2117
{
icculus@9
  2118
    palette_changed = 1;
icculus@9
  2119
}
icculus@9
  2120
icculus@9
  2121
void
icculus@9
  2122
SDL_MouseRect(SDL_Rect * area)
icculus@9
  2123
{
icculus@9
  2124
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2125
    int clip_diff;
icculus@9
  2126
icculus@9
  2127
    *area = SDL_cursor->area;
icculus@9
  2128
    if (area->x < 0) {
icculus@9
  2129
        area->w += area->x;
icculus@9
  2130
        area->x = 0;
icculus@9
  2131
    }
icculus@9
  2132
    if (area->y < 0) {
icculus@9
  2133
        area->h += area->y;
icculus@9
  2134
        area->y = 0;
icculus@9
  2135
    }
icculus@16
  2136
    clip_diff = (area->x + area->w) - VideoSurface->w;
icculus@9
  2137
    if (clip_diff > 0) {
icculus@9
  2138
        area->w = area->w < clip_diff ? 0 : area->w - clip_diff;
icculus@9
  2139
    }
icculus@16
  2140
    clip_diff = (area->y + area->h) - VideoSurface->h;
icculus@9
  2141
    if (clip_diff > 0) {
icculus@9
  2142
        area->h = area->h < clip_diff ? 0 : area->h - clip_diff;
icculus@9
  2143
    }
icculus@9
  2144
}
icculus@9
  2145
icculus@9
  2146
static void
icculus@9
  2147
SDL_DrawCursorFast(SDL_Surface * screen, SDL_Rect * area)
icculus@9
  2148
{
icculus@9
  2149
    const Uint32 pixels[2] = { 0xFFFFFFFF, 0x00000000 };
icculus@9
  2150
    int i, w, h;
icculus@9
  2151
    Uint8 *data, datab;
icculus@9
  2152
    Uint8 *mask, maskb;
icculus@9
  2153
icculus@9
  2154
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
icculus@9
  2155
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
icculus@9
  2156
    switch (screen->format->BytesPerPixel) {
icculus@9
  2157
icculus@9
  2158
    case 1:
icculus@9
  2159
        {
icculus@9
  2160
            Uint8 *dst;
icculus@9
  2161
            int dstskip;
icculus@9
  2162
icculus@9
  2163
            if (palette_changed) {
icculus@9
  2164
                pixels8[0] =
icculus@9
  2165
                    (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
icculus@9
  2166
                pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
icculus@9
  2167
                palette_changed = 0;
icculus@9
  2168
            }
icculus@9
  2169
            dst = (Uint8 *) screen->pixels +
icculus@9
  2170
                (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  2171
                SDL_cursor->area.x;
icculus@9
  2172
            dstskip = screen->pitch - area->w;
icculus@9
  2173
icculus@9
  2174
            for (h = area->h; h; h--) {
icculus@9
  2175
                for (w = area->w / 8; w; w--) {
icculus@9
  2176
                    maskb = *mask++;
icculus@9
  2177
                    datab = *data++;
icculus@9
  2178
                    for (i = 0; i < 8; ++i) {
icculus@9
  2179
                        if (maskb & 0x80) {
icculus@9
  2180
                            *dst = pixels8[datab >> 7];
icculus@9
  2181
                        }
icculus@9
  2182
                        maskb <<= 1;
icculus@9
  2183
                        datab <<= 1;
icculus@9
  2184
                        dst++;
icculus@9
  2185
                    }
icculus@9
  2186
                }
icculus@9
  2187
                dst += dstskip;
icculus@9
  2188
            }
icculus@9
  2189
        }
icculus@9
  2190
        break;
icculus@9
  2191
icculus@9
  2192
    case 2:
icculus@9
  2193
        {
icculus@9
  2194
            Uint16 *dst;
icculus@9
  2195
            int dstskip;
icculus@9
  2196
icculus@9
  2197
            dst = (Uint16 *) screen->pixels +
icculus@9
  2198
                (SDL_cursor->area.y + area->y) * screen->pitch / 2 +
icculus@9
  2199
                SDL_cursor->area.x;
icculus@9
  2200
            dstskip = (screen->pitch / 2) - area->w;
icculus@9
  2201
icculus@9
  2202
            for (h = area->h; h; h--) {
icculus@9
  2203
                for (w = area->w / 8; w; w--) {
icculus@9
  2204
                    maskb = *mask++;
icculus@9
  2205
                    datab = *data++;
icculus@9
  2206
                    for (i = 0; i < 8; ++i) {
icculus@9
  2207
                        if (maskb & 0x80) {
icculus@9
  2208
                            *dst = (Uint16) pixels[datab >> 7];
icculus@9
  2209
                        }
icculus@9
  2210
                        maskb <<= 1;
icculus@9
  2211
                        datab <<= 1;
icculus@9
  2212
                        dst++;
icculus@9
  2213
                    }
icculus@9
  2214
                }
icculus@9
  2215
                dst += dstskip;
icculus@9
  2216
            }
icculus@9
  2217
        }
icculus@9
  2218
        break;
icculus@9
  2219
icculus@9
  2220
    case 3:
icculus@9
  2221
        {
icculus@9
  2222
            Uint8 *dst;
icculus@9
  2223
            int dstskip;
icculus@9
  2224
icculus@9
  2225
            dst = (Uint8 *) screen->pixels +
icculus@9
  2226
                (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  2227
                SDL_cursor->area.x * 3;
icculus@9
  2228
            dstskip = screen->pitch - area->w * 3;
icculus@9
  2229
icculus@9
  2230
            for (h = area->h; h; h--) {
icculus@9
  2231
                for (w = area->w / 8; w; w--) {
icculus@9
  2232
                    maskb = *mask++;
icculus@9
  2233
                    datab = *data++;
icculus@9
  2234
                    for (i = 0; i < 8; ++i) {
icculus@9
  2235
                        if (maskb & 0x80) {
icculus@9
  2236
                            SDL_memset(dst, pixels[datab >> 7], 3);
icculus@9
  2237
                        }
icculus@9
  2238
                        maskb <<= 1;
icculus@9
  2239
                        datab <<= 1;
icculus@9
  2240
                        dst += 3;
icculus@9
  2241
                    }
icculus@9
  2242
                }
icculus@9
  2243
                dst += dstskip;
icculus@9
  2244
            }
icculus@9
  2245
        }
icculus@9
  2246
        break;
icculus@9
  2247
icculus@9
  2248
    case 4:
icculus@9
  2249
        {
icculus@9
  2250
            Uint32 *dst;
icculus@9
  2251
            int dstskip;
icculus@9
  2252
icculus@9
  2253
            dst = (Uint32 *) screen->pixels +
icculus@9
  2254
                (SDL_cursor->area.y + area->y) * screen->pitch / 4 +
icculus@9
  2255
                SDL_cursor->area.x;
icculus@9
  2256
            dstskip = (screen->pitch / 4) - area->w;
icculus@9
  2257
icculus@9
  2258
            for (h = area->h; h; h--) {
icculus@9
  2259
                for (w = area->w / 8; w; w--) {
icculus@9
  2260
                    maskb = *mask++;
icculus@9
  2261
                    datab = *data++;
icculus@9
  2262
                    for (i = 0; i < 8; ++i) {
icculus@9
  2263
                        if (maskb & 0x80) {
icculus@9
  2264
                            *dst = pixels[datab >> 7];
icculus@9
  2265
                        }
icculus@9
  2266
                        maskb <<= 1;
icculus@9
  2267
                        datab <<= 1;
icculus@9
  2268
                        dst++;
icculus@9
  2269
                    }
icculus@9
  2270
                }
icculus@9
  2271
                dst += dstskip;
icculus@9
  2272
            }
icculus@9
  2273
        }
icculus@9
  2274
        break;
icculus@9
  2275
    }
icculus@9
  2276
}
icculus@9
  2277
icculus@9
  2278
static void
icculus@9
  2279
SDL_DrawCursorSlow(SDL_Surface * screen, SDL_Rect * area)
icculus@9
  2280
{
icculus@9
  2281
    const Uint32 pixels[2] = { 0xFFFFFF, 0x000000 };
icculus@9
  2282
    int h;
icculus@9
  2283
    int x, minx, maxx;
icculus@9
  2284
    Uint8 *data, datab = 0;
icculus@9
  2285
    Uint8 *mask, maskb = 0;
icculus@9
  2286
    Uint8 *dst;
icculus@9
  2287
    int dstbpp, dstskip;
icculus@9
  2288
icculus@9
  2289
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
icculus@9
  2290
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
icculus@9
  2291
    dstbpp = screen->format->BytesPerPixel;
icculus@9
  2292
    dst = (Uint8 *) screen->pixels +
icculus@9
  2293
        (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  2294
        SDL_cursor->area.x * dstbpp;
icculus@9
  2295
    dstskip = screen->pitch - SDL_cursor->area.w * dstbpp;
icculus@9
  2296
icculus@9
  2297
    minx = area->x;
icculus@9
  2298
    maxx = area->x + area->w;
icculus@9
  2299
    if (screen->format->BytesPerPixel == 1) {
icculus@9
  2300
        if (palette_changed) {
icculus@9
  2301
            pixels8[0] = (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
icculus@9
  2302
            pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
icculus@9
  2303
            palette_changed = 0;
icculus@9
  2304
        }
icculus@9
  2305
        for (h = area->h; h; h--) {
icculus@9
  2306
            for (x = 0; x < SDL_cursor->area.w; ++x) {
icculus@9
  2307
                if ((x % 8) == 0) {
icculus@9
  2308
                    maskb = *mask++;
icculus@9
  2309
                    datab = *data++;
icculus@9
  2310
                }
icculus@9
  2311
                if ((x >= minx) && (x < maxx)) {
icculus@9
  2312
                    if (maskb & 0x80) {
icculus@9
  2313
                        SDL_memset(dst, pixels8[datab >> 7], dstbpp);
icculus@9
  2314
                    }
icculus@9
  2315
                }
icculus@9
  2316
                maskb <<= 1;
icculus@9
  2317
                datab <<= 1;
icculus@9
  2318
                dst += dstbpp;
icculus@9
  2319
            }
icculus@9
  2320
            dst += dstskip;
icculus@9
  2321
        }
icculus@9
  2322
    } else {
icculus@9
  2323
        for (h = area->h; h; h--) {
icculus@9
  2324
            for (x = 0; x < SDL_cursor->area.w; ++x) {
icculus@9
  2325
                if ((x % 8) == 0) {
icculus@9
  2326
                    maskb = *mask++;
icculus@9
  2327
                    datab = *data++;
icculus@9
  2328
                }
icculus@9
  2329
                if ((x >= minx) && (x < maxx)) {
icculus@9
  2330
                    if (maskb & 0x80) {
icculus@9
  2331
                        SDL_memset(dst, pixels[datab >> 7], dstbpp);
icculus@9
  2332
                    }
icculus@9
  2333
                }
icculus@9
  2334
                maskb <<= 1;
icculus@9
  2335
                datab <<= 1;
icculus@9
  2336
                dst += dstbpp;
icculus@9
  2337
            }
icculus@9
  2338
            dst += dstskip;
icculus@9
  2339
        }
icculus@9
  2340
    }
icculus@9
  2341
}
icculus@9
  2342
icculus@9
  2343
/* This handles the ugly work of converting the saved cursor background from
icculus@9
  2344
   the pixel format of the shadow surface to that of the video surface.
icculus@9
  2345
   This is only necessary when blitting from a shadow surface of a different
icculus@9
  2346
   pixel format than the video surface, and using a software rendered cursor.
icculus@9
  2347
*/
icculus@9
  2348
static void
icculus@9
  2349
SDL_ConvertCursorSave(SDL_Surface * screen, int w, int h)
icculus@9
  2350
{
icculus@9
  2351
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2352
    SDL_BlitInfo info;
icculus@9
  2353
    SDL_loblit RunBlit;
icculus@9
  2354
icculus@9
  2355
    /* Make sure we can steal the blit mapping */
icculus@16
  2356
    if (screen->map->dst != VideoSurface) {
icculus@9
  2357
        return;
icculus@9
  2358
    }
icculus@9
  2359
icculus@9
  2360
    /* Set up the blit information */
icculus@9
  2361
    info.s_pixels = SDL_cursor->save[1];
icculus@9
  2362
    info.s_width = w;
icculus@9
  2363
    info.s_height = h;
icculus@9
  2364
    info.s_skip = 0;
icculus@9
  2365
    info.d_pixels = SDL_cursor->save[0];
icculus@9
  2366
    info.d_width = w;
icculus@9
  2367
    info.d_height = h;
icculus@9
  2368
    info.d_skip = 0;
icculus@9
  2369
    info.aux_data = screen->map->sw_data->aux_data;
icculus@9
  2370
    info.src = screen->format;
icculus@9
  2371
    info.table = screen->map->table;
icculus@16
  2372
    info.dst = VideoSurface->format;
icculus@9
  2373
    RunBlit = screen->map->sw_data->blit;
icculus@9
  2374
icculus@9
  2375
    /* Run the actual software blit */
icculus@9
  2376
    RunBlit(&info);
icculus@9
  2377
}
icculus@9
  2378
icculus@9
  2379
void
icculus@9
  2380
SDL_DrawCursorNoLock(SDL_Surface * screen)
icculus@9
  2381
{
icculus@9
  2382
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2383
    SDL_Rect area;
icculus@9
  2384
icculus@9
  2385
    /* Get the mouse rectangle, clipped to the screen */
icculus@9
  2386
    SDL_MouseRect(&area);
icculus@9
  2387
    if ((area.w == 0) || (area.h == 0)) {
icculus@9
  2388
        return;
icculus@9
  2389
    }
icculus@9
  2390
icculus@9
  2391
    /* Copy mouse background */
icculus@9
  2392
    {
icculus@9
  2393
        int w, h, screenbpp;
icculus@9
  2394
        Uint8 *src, *dst;
icculus@9
  2395
icculus@9
  2396
        /* Set up the copy pointers */
icculus@9
  2397
        screenbpp = screen->format->BytesPerPixel;
icculus@16
  2398
        if ((screen == VideoSurface) ||
icculus@16
  2399
            FORMAT_EQUAL(screen->format, VideoSurface->format)) {
icculus@9
  2400
            dst = SDL_cursor->save[0];
icculus@9
  2401
        } else {
icculus@9
  2402
            dst = SDL_cursor->save[1];
icculus@9
  2403
        }
icculus@9
  2404
        src = (Uint8 *) screen->pixels + area.y * screen->pitch +
icculus@9
  2405
            area.x * screenbpp;
icculus@9
  2406
icculus@9
  2407
        /* Perform the copy */
icculus@9
  2408
        w = area.w * screenbpp;
icculus@9
  2409
        h = area.h;
icculus@9
  2410
        while (h--) {
icculus@9
  2411
            SDL_memcpy(dst, src, w);
icculus@9
  2412
            dst += w;
icculus@9
  2413
            src += screen->pitch;
icculus@9
  2414
        }
icculus@9
  2415
    }
icculus@9
  2416
icculus@9
  2417
    /* Draw the mouse cursor */
icculus@9
  2418
    area.x -= SDL_cursor->area.x;
icculus@9
  2419
    area.y -= SDL_cursor->area.y;
icculus@9
  2420
    if ((area.x == 0) && (area.w == SDL_cursor->area.w)) {
icculus@9
  2421
        SDL_DrawCursorFast(screen, &area);
icculus@9
  2422
    } else {
icculus@9
  2423
        SDL_DrawCursorSlow(screen, &area);
icculus@9
  2424
    }
icculus@9
  2425
}
icculus@9
  2426
icculus@9
  2427
void
icculus@9
  2428
SDL_DrawCursor(SDL_Surface * screen)
icculus@9
  2429
{
icculus@9
  2430
    /* Lock the screen if necessary */
icculus@9
  2431
    if (screen == NULL) {
icculus@9
  2432
        return;
icculus@9
  2433
    }
icculus@9
  2434
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2435
        if (SDL_LockSurface(screen) < 0) {
icculus@9
  2436
            return;
icculus@9
  2437
        }
icculus@9
  2438
    }
icculus@9
  2439
icculus@9
  2440
    SDL_DrawCursorNoLock(screen);
icculus@9
  2441
icculus@9
  2442
    /* Unlock the screen and update if necessary */
icculus@9
  2443
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2444
        SDL_UnlockSurface(screen);
icculus@9
  2445
    }
icculus@9
  2446
    if (screen->flags & SDL_SCREEN_SURFACE) {
icculus@9
  2447
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2448
        SDL_Window *window;
icculus@9
  2449
        SDL_Rect area;
icculus@9
  2450
icculus@9
  2451
        window = SDL_GetWindowFromSurface(screen);
icculus@9
  2452
        if (!window) {
icculus@9
  2453
            return;
icculus@9
  2454
        }
icculus@9
  2455
icculus@9
  2456
        SDL_MouseRect(&area);
icculus@9
  2457
icculus@9
  2458
        if (_this->UpdateWindowSurface) {
icculus@9
  2459
            _this->UpdateWindowSurface(_this, window, 1, &area);
icculus@9
  2460
        }
icculus@9
  2461
    }
icculus@9
  2462
}
icculus@9
  2463
icculus@9
  2464
void
icculus@9
  2465
SDL_EraseCursorNoLock(SDL_Surface * screen)
icculus@9
  2466
{
icculus@9
  2467
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2468
    SDL_Window *window;
icculus@9
  2469
    SDL_Rect area;
icculus@9
  2470
icculus@9
  2471
    /* Get the window associated with the surface */
icculus@9
  2472
    window = SDL_GetWindowFromSurface(screen);
icculus@9
  2473
    if (!window || !window->surface) {
icculus@9
  2474
        return;
icculus@9
  2475
    }
icculus@9
  2476
icculus@9
  2477
    /* Get the mouse rectangle, clipped to the screen */
icculus@9
  2478
    SDL_MouseRect(&area);
icculus@9
  2479
    if ((area.w == 0) || (area.h == 0)) {
icculus@9
  2480
        return;
icculus@9
  2481
    }
icculus@9
  2482
icculus@9
  2483
    /* Copy mouse background */
icculus@9
  2484
    {
icculus@9
  2485
        int w, h, screenbpp;
icculus@9
  2486
        Uint8 *src, *dst;
icculus@9
  2487
icculus@9
  2488
        /* Set up the copy pointers */
icculus@9
  2489
        screenbpp = screen->format->BytesPerPixel;
icculus@9
  2490
        if ((screen->flags & SDL_SCREEN_SURFACE) ||
icculus@9
  2491
            FORMAT_EQUAL(screen->format, window->surface->format)) {
icculus@9
  2492
            src = SDL_cursor->save[0];
icculus@9
  2493
        } else {
icculus@9
  2494
            src = SDL_cursor->save[1];
icculus@9
  2495
        }
icculus@9
  2496
        dst = (Uint8 *) screen->pixels + area.y * screen->pitch +
icculus@9
  2497
            area.x * screenbpp;
icculus@9
  2498
icculus@9
  2499
        /* Perform the copy */
icculus@9
  2500
        w = area.w * screenbpp;
icculus@9
  2501
        h = area.h;
icculus@9
  2502
        while (h--) {
icculus@9
  2503
            SDL_memcpy(dst, src, w);
icculus@9
  2504
            src += w;
icculus@9
  2505
            dst += screen->pitch;
icculus@9
  2506
        }
icculus@9
  2507
icculus@9
  2508
        /* Perform pixel conversion on cursor background */
icculus@9
  2509
        if (src > SDL_cursor->save[1]) {
icculus@9
  2510
            SDL_ConvertCursorSave(screen, area.w, area.h);
icculus@9
  2511
        }
icculus@9
  2512
    }
icculus@9
  2513
}
icculus@9
  2514
icculus@9
  2515
void
icculus@9
  2516
SDL_EraseCursor(SDL_Surface * screen)
icculus@9
  2517
{
icculus@9
  2518
    /* Lock the screen if necessary */
icculus@9
  2519
    if (screen == NULL) {
icculus@9
  2520
        return;
icculus@9
  2521
    }
icculus@9
  2522
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2523
        if (SDL_LockSurface(screen) < 0) {
icculus@9
  2524
            return;
icculus@9
  2525
        }
icculus@9
  2526
    }
icculus@9
  2527
icculus@9
  2528
    SDL_EraseCursorNoLock(screen);
icculus@9
  2529
icculus@9
  2530
    /* Unlock the screen and update if necessary */
icculus@9
  2531
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2532
        SDL_UnlockSurface(screen);
icculus@9
  2533
    }
icculus@9
  2534
    if (screen->flags & SDL_SCREEN_SURFACE) {
icculus@9
  2535
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2536
        SDL_Window *window;
icculus@9
  2537
        SDL_Rect area;
icculus@9
  2538
icculus@9
  2539
        window = SDL_GetWindowFromSurface(screen);
icculus@9
  2540
        if (!window) {
icculus@9
  2541
            return;
icculus@9
  2542
        }
icculus@9
  2543
icculus@9
  2544
        SDL_MouseRect(&area);
icculus@9
  2545
icculus@9
  2546
        if (_this->UpdateWindowSurface) {
icculus@9
  2547
            _this->UpdateWindowSurface(_this, window, 1, &area);
icculus@9
  2548
        }
icculus@9
  2549
    }
icculus@9
  2550
}
icculus@9
  2551
icculus@9
  2552
/* Reset the cursor on video mode change
icculus@9
  2553
   FIXME:  Keep track of all cursors, and reset them all.
icculus@9
  2554
 */
icculus@9
  2555
void
icculus@9
  2556
SDL_ResetCursor(void)
icculus@9
  2557
{
icculus@9
  2558
    int savelen;
icculus@9
  2559
icculus@9
  2560
    if (SDL_cursor) {
icculus@9
  2561
        savelen = SDL_cursor->area.w * 4 * SDL_cursor->area.h;
icculus@9
  2562
        SDL_cursor->area.x = 0;
icculus@9
  2563
        SDL_cursor->area.y = 0;
icculus@9
  2564
        SDL_memset(SDL_cursor->save[0], 0, savelen);
icculus@9
  2565
    }
icculus@9
  2566
}
icculus@9
  2567
#endif
icculus@9
  2568
icculus@9
  2569
struct private_yuvhwdata
icculus@9
  2570
{
icculus@9
  2571
    SDL_SW_YUVTexture *texture;
icculus@9
  2572
    SDL_Surface *display;
icculus@9
  2573
    Uint32 display_format;
icculus@9
  2574
};
icculus@9
  2575
icculus@9
  2576
SDL_Overlay *
icculus@9
  2577
SDL_CreateYUVOverlay(int w, int h, Uint32 format, SDL_Surface * display)
icculus@9
  2578
{
icculus@9
  2579
    SDL_Overlay *overlay;
icculus@9
  2580
    Uint32 texture_format;
icculus@9
  2581
    SDL_SW_YUVTexture *texture;
icculus@9
  2582
icculus@9
  2583
    if ((display->flags & SDL_OPENGL) == SDL_OPENGL) {
icculus@9
  2584
        SDL_SetError("YUV overlays are not supported in OpenGL mode");
icculus@9
  2585
        return NULL;
icculus@9
  2586
    }
icculus@9
  2587
icculus@16
  2588
    if (display != PublicSurface) {
icculus@9
  2589
        SDL_SetError("YUV display is only supported on the screen surface");
icculus@9
  2590
        return NULL;
icculus@9
  2591
    }
icculus@9
  2592
icculus@9
  2593
    switch (format) {
icculus@9
  2594
    case SDL_YV12_OVERLAY:
icculus@9
  2595
        texture_format = SDL_PIXELFORMAT_YV12;
icculus@9
  2596
        break;
icculus@9
  2597
    case SDL_IYUV_OVERLAY:
icculus@9
  2598
        texture_format = SDL_PIXELFORMAT_IYUV;
icculus@9
  2599
        break;
icculus@9
  2600
    case SDL_YUY2_OVERLAY:
icculus@9
  2601
        texture_format = SDL_PIXELFORMAT_YUY2;
icculus@9
  2602
        break;
icculus@9
  2603
    case SDL_UYVY_OVERLAY:
icculus@9
  2604
        texture_format = SDL_PIXELFORMAT_UYVY;
icculus@9
  2605
        break;
icculus@9
  2606
    case SDL_YVYU_OVERLAY:
icculus@9
  2607
        texture_format = SDL_PIXELFORMAT_YVYU;
icculus@9
  2608
        break;
icculus@9
  2609
    default:
icculus@9
  2610
        SDL_SetError("Unknown YUV format");
icculus@9
  2611
        return NULL;
icculus@9
  2612
    }
icculus@9
  2613
icculus@31
  2614
    overlay = (SDL_Overlay *) SDL20_malloc(sizeof(*overlay));
icculus@9
  2615
    if (!overlay) {
icculus@31
  2616
        SDL20_OutOfMemory();
icculus@9
  2617
        return NULL;
icculus@9
  2618
    }
icculus@9
  2619
    SDL_zerop(overlay);
icculus@9
  2620
icculus@9
  2621
    overlay->hwdata =
icculus@31
  2622
        (struct private_yuvhwdata *) SDL20_malloc(sizeof(*overlay->hwdata));
icculus@9
  2623
    if (!overlay->hwdata) {
icculus@31
  2624
        SDL20_free(overlay);
icculus@31
  2625
        SDL20_OutOfMemory();
icculus@9
  2626
        return NULL;
icculus@9
  2627
    }
icculus@9
  2628
icculus@9
  2629
    texture = SDL_SW_CreateYUVTexture(texture_format, w, h);
icculus@9
  2630
    if (!texture) {
icculus@31
  2631
        SDL20_free(overlay->hwdata);
icculus@31
  2632
        SDL20_free(overlay);
icculus@9
  2633
        return NULL;
icculus@9
  2634
    }
icculus@9
  2635
    overlay->hwdata->texture = texture;
icculus@9
  2636
    overlay->hwdata->display = NULL;
icculus@9
  2637
    overlay->hwdata->display_format = SDL_PIXELFORMAT_UNKNOWN;
icculus@9
  2638
icculus@9
  2639
    overlay->format = format;
icculus@9
  2640
    overlay->w = w;
icculus@9
  2641
    overlay->h = h;
icculus@9
  2642
    if (format == SDL_YV12_OVERLAY || format == SDL_IYUV_OVERLAY) {
icculus@9
  2643
        overlay->planes = 3;
icculus@9
  2644
    } else {
icculus@9
  2645
        overlay->planes = 1;
icculus@9
  2646
    }
icculus@9
  2647
    overlay->pitches = texture->pitches;
icculus@9
  2648
    overlay->pixels = texture->planes;
icculus@9
  2649
icculus@9
  2650
    return overlay;
icculus@9
  2651
}
icculus@9
  2652
icculus@9
  2653
int
icculus@9
  2654
SDL_LockYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2655
{
icculus@9
  2656
    SDL_Rect rect;
icculus@9
  2657
    void *pixels;
icculus@9
  2658
    int pitch;
icculus@9
  2659
icculus@9
  2660
    if (!overlay) {
icculus@9
  2661
        SDL_SetError("Passed a NULL overlay");
icculus@9
  2662
        return -1;
icculus@9
  2663
    }
icculus@9
  2664
icculus@9
  2665
    rect.x = 0;
icculus@9
  2666
    rect.y = 0;
icculus@9
  2667
    rect.w = overlay->w;
icculus@9
  2668
    rect.h = overlay->h;
icculus@9
  2669
icculus@9
  2670
    if (SDL_SW_LockYUVTexture(overlay->hwdata->texture, &rect, &pixels, &pitch) < 0) {
icculus@9
  2671
        return -1;
icculus@9
  2672
    }
icculus@9
  2673
icculus@9
  2674
    overlay->pixels[0] = (Uint8 *) pixels;
icculus@9
  2675
    overlay->pitches[0] = pitch;
icculus@9
  2676
    switch (overlay->format) {
icculus@9
  2677
    case SDL_YV12_OVERLAY:
icculus@9
  2678
    case SDL_IYUV_OVERLAY:
icculus@9
  2679
        overlay->pitches[1] = pitch / 2;
icculus@9
  2680
        overlay->pitches[2] = pitch / 2;
icculus@9
  2681
        overlay->pixels[1] =
icculus@9
  2682
            overlay->pixels[0] + overlay->pitches[0] * overlay->h;
icculus@9
  2683
        overlay->pixels[2] =
icculus@9
  2684
            overlay->pixels[1] + overlay->pitches[1] * overlay->h / 2;
icculus@9
  2685
        break;
icculus@9
  2686
    case SDL_YUY2_OVERLAY:
icculus@9
  2687
    case SDL_UYVY_OVERLAY:
icculus@9
  2688
    case SDL_YVYU_OVERLAY:
icculus@9
  2689
        break;
icculus@9
  2690
    }
icculus@9
  2691
    return 0;
icculus@9
  2692
}
icculus@9
  2693
icculus@9
  2694
void
icculus@9
  2695
SDL_UnlockYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2696
{
icculus@9
  2697
    if (!overlay) {
icculus@9
  2698
        return;
icculus@9
  2699
    }
icculus@9
  2700
icculus@9
  2701
    SDL_SW_UnlockYUVTexture(overlay->hwdata->texture);
icculus@9
  2702
}
icculus@9
  2703
icculus@9
  2704
int
icculus@9
  2705
SDL_DisplayYUVOverlay(SDL_Overlay * overlay, SDL_Rect * dstrect)
icculus@9
  2706
{
icculus@9
  2707
    SDL_Surface *display;
icculus@9
  2708
    SDL_Rect src_rect;
icculus@9
  2709
    SDL_Rect dst_rect;
icculus@9
  2710
    void *pixels;
icculus@9
  2711
icculus@9
  2712
    if (!overlay || !dstrect) {
icculus@9
  2713
        SDL_SetError("Passed a NULL overlay or dstrect");
icculus@9
  2714
        return -1;
icculus@9
  2715
    }
icculus@9
  2716
icculus@9
  2717
    display = overlay->hwdata->display;
icculus@16
  2718
    if (display != VideoSurface) {
icculus@16
  2719
        overlay->hwdata->display = display = VideoSurface;
icculus@9
  2720
        overlay->hwdata->display_format = SDL_MasksToPixelFormatEnum(
icculus@9
  2721
                                                display->format->BitsPerPixel,
icculus@9
  2722
                                                display->format->Rmask,
icculus@9
  2723
                                                display->format->Gmask,
icculus@9
  2724
                                                display->format->Bmask,
icculus@9
  2725
                                                display->format->Amask);
icculus@9
  2726
    }
icculus@9
  2727
icculus@9
  2728
    src_rect.x = 0;
icculus@9
  2729
    src_rect.y = 0;
icculus@9
  2730
    src_rect.w = overlay->w;
icculus@9
  2731
    src_rect.h = overlay->h;
icculus@9
  2732
icculus@9
  2733
    if (!SDL_IntersectRect(&display->clip_rect, dstrect, &dst_rect)) {
icculus@9
  2734
        return 0;
icculus@9
  2735
    }
icculus@9
  2736
     
icculus@9
  2737
    pixels = (void *)((Uint8 *)display->pixels +
icculus@9
  2738
                        dst_rect.y * display->pitch +
icculus@9
  2739
                        dst_rect.x * display->format->BytesPerPixel);
icculus@9
  2740
icculus@9
  2741
    if (SDL_SW_CopyYUVToRGB(overlay->hwdata->texture, &src_rect,
icculus@9
  2742
                            overlay->hwdata->display_format,
icculus@9
  2743
                            dst_rect.w, dst_rect.h,
icculus@9
  2744
                            pixels, display->pitch) < 0) {
icculus@9
  2745
        return -1;