src/SDL12_compat.c
author Ryan C. Gordon <icculus@icculus.org>
Sun, 14 Apr 2013 00:11:20 -0400
changeset 35 365748d8ff6c
parent 34 946cbc18ba19
child 36 d71bb358e954
permissions -rw-r--r--
Try to get the calling conventions right.
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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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// !!! 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 (SDLCALL *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 int (SDLCALL *SDL20_SetError_t)(const char *fmt, ...);
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static SDL20_SetError_t SDL20_SetError = NULL;
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/* Things that _should_ be binary compatible pass right through... */
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#define SDL20_SYM(rc,fn,params,args,ret)
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#define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) \
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    DECLSPEC rc SDLCALL SDL_##fn params { ret SDL20_##fn args; }
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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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/* these are macros (etc) 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 SDL20_zero(x) SDL20_memset(&(x), 0, sizeof((x)))
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#define SDL20_zerop(x) SDL20_memset((x), 0, sizeof(*(x)))
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#define SDL_ReportAssertion SDL20_ReportAssertion
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#define SDL12_DEFAULT_REPEAT_DELAY 500
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#define SDL12_DEFAULT_REPEAT_INTERVAL 30
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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 *surface20; /* the real SDL 1.2 has an opaque pointer to a platform-specific thing here named "hwdata". */
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    SDL_Rect clip_rect;
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    Uint32 unused1;
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    Uint32 locked;
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    void *blitmap;
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    unsigned int format_version;
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    int refcount;
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} SDL12_Surface;
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typedef struct
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{
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    Uint32 hw_available :1;
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    Uint32 wm_available :1;
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    Uint32 UnusedBits1  :6;
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    Uint32 UnusedBits2  :1;
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    Uint32 blit_hw      :1;
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    Uint32 blit_hw_CC   :1;
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    Uint32 blit_hw_A    :1;
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    Uint32 blit_sw      :1;
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    Uint32 blit_sw_CC   :1;
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    Uint32 blit_sw_A    :1;
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    Uint32 blit_fill    :1;
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    Uint32 UnusedBits3  :16;
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    Uint32 video_mem;
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    SDL_PixelFormat *vfmt;
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    int current_w;
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    int current_h;
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} SDL12_VideoInfo;
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#define SDL12_HWSURFACE 0x00000001
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#define SDL12_ASYNCBLIT 0x00000004
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#define SDL12_ANYFORMAT 0x10000000
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#define SDL12_HWPALETTE 0x20000000
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#define SDL12_DOUBLEBUF 0x40000000
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#define SDL12_FULLSCREEN 0x80000000
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#define SDL12_OPENGL 0x00000002
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#define SDL12_OPENGLBLIT 0x0000000A
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#define SDL12_RESIZABLE 0x00000010
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#define SDL12_NOFRAME 0x00000020
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#define SDL12_HWACCEL 0x00000100
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#define SDL12_SRCCOLORKEY 0x00001000
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#define SDL12_RLEACCELOK 0x00002000
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#define SDL12_RLEACCEL 0x00004000
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#define SDL12_SRCALPHA 0x00010000
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#define SDL12_PREALLOC 0x01000000
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typedef 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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/* 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; } }
icculus@19
   405
#elif defined(unix) || defined(__APPLE__)
icculus@19
   406
    #include <dlfcn.h>
icculus@9
   407
    #ifdef __APPLE__
icculus@9
   408
    #define SDL20_LIBNAME "libSDL2.dylib"
icculus@9
   409
    #else
icculus@9
   410
    #define SDL20_LIBNAME "libSDL2-2.0.so.0"
icculus@9
   411
    #endif
icculus@9
   412
    static void *Loaded_SDL20 = NULL;
icculus@9
   413
    #define LoadSDL20Library() ((Loaded_SDL20 = dlopen(SDL20_LIBNAME, RTLD_LOCAL)) != NULL)
icculus@9
   414
    #define LookupSDL20Sym(sym) dlsym(Loaded_SDL20, sym)
icculus@9
   415
    #define CloseSDL20Library() { if (Loaded_SDL20) { dlclose(Loaded_SDL20); Loaded_SDL20 = NULL; } }
icculus@9
   416
#else
icculus@9
   417
    #error Please define your platform.
icculus@9
   418
#endif
icculus@9
   419
icculus@9
   420
static void *
icculus@9
   421
LoadSDL20Symbol(const char *fn, int *okay)
icculus@9
   422
{
icculus@9
   423
    void *retval = NULL;
icculus@9
   424
    if (*okay)  /* only bother trying if we haven't previously failed. */
icculus@9
   425
    {
icculus@9
   426
        retval = LookupSDL20Sym(fn);
icculus@9
   427
        if (retval == NULL)
icculus@9
   428
            *okay = 0;
icculus@9
   429
    }
icculus@9
   430
    return retval;
icculus@9
   431
}
icculus@9
   432
icculus@9
   433
static void
icculus@9
   434
UnloadSDL20(void)
icculus@9
   435
{
icculus@9
   436
    #define SDL20_SYM(rc,fn,params,args,ret) SDL20_##fn = NULL;
icculus@34
   437
    #define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) SDL20_SYM(rc,fn,params,args,ret)
icculus@9
   438
    #include "SDL20_syms.h"
icculus@9
   439
    #undef SDL20_SYM_PASSTHROUGH
icculus@9
   440
    #undef SDL20_SYM
icculus@11
   441
    SDL20_SetError = NULL;
icculus@9
   442
    CloseSDL20Library();
icculus@9
   443
}
icculus@9
   444
icculus@9
   445
static int
icculus@9
   446
LoadSDL20(void)
icculus@9
   447
{
icculus@9
   448
    int okay = 1;
icculus@9
   449
    if (!Loaded_SDL20)
icculus@9
   450
    {
icculus@9
   451
        okay = LoadSDL20Library();
icculus@9
   452
        #define SDL20_SYM(rc,fn,params,args,ret) SDL20_##fn = (SDL20_##fn##_t) LoadSDL20Symbol("SDL_" #fn, &okay);
icculus@9
   453
        #define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) SDL20_SYM(rc,fn,params,args,ret)
icculus@9
   454
        #include "SDL20_syms.h"
icculus@9
   455
        #undef SDL20_SYM_PASSTHROUGH
icculus@9
   456
        #undef SDL20_SYM
icculus@11
   457
        SDL20_SetError = (SDL20_SetError_t) LoadSDL20Symbol("SDL_SetError", &okay);
icculus@9
   458
        if (!okay)
icculus@9
   459
            UnloadSDL20();
icculus@9
   460
    }
icculus@9
   461
    return okay;
icculus@9
   462
}
icculus@9
   463
icculus@35
   464
DECLSPEC const SDL_version * SDLCALL
icculus@35
   465
SDL_Linked_Version(void)
icculus@35
   466
{
icculus@35
   467
    static const SDL_version version = { 1, 2, SDL12_COMPAT_VERSION };
icculus@35
   468
    return &version;
icculus@35
   469
}
icculus@9
   470
icculus@9
   471
static int
icculus@9
   472
GetVideoDisplay()
icculus@9
   473
{
icculus@9
   474
    // !!! FIXME: cache this value during SDL_Init() so it doesn't change.
icculus@9
   475
    const char *variable = SDL_getenv("SDL_VIDEO_FULLSCREEN_DISPLAY");
icculus@9
   476
    if ( !variable ) {
icculus@9
   477
        variable = SDL_getenv("SDL_VIDEO_FULLSCREEN_HEAD");
icculus@9
   478
    }
icculus@9
   479
    if ( variable ) {
icculus@34
   480
        return SDL20_atoi(variable);
icculus@9
   481
    } else {
icculus@9
   482
        return 0;
icculus@9
   483
    }
icculus@9
   484
}
icculus@9
   485
icculus@11
   486
static int
icculus@11
   487
DoSDLInit(const int justsubs, Uint32 sdl12flags)
icculus@9
   488
{
icculus@9
   489
    Uint32 sdl20flags = 0;
icculus@9
   490
    int rc;
icculus@9
   491
icculus@9
   492
    if (!LoadSDL20())
icculus@9
   493
        return -1;
icculus@9
   494
icculus@19
   495
    #define SETFLAG(flag) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag
icculus@9
   496
    SETFLAG(TIMER);
icculus@9
   497
    SETFLAG(AUDIO);
icculus@9
   498
    SETFLAG(VIDEO);
icculus@9
   499
    SETFLAG(JOYSTICK);
icculus@9
   500
    SETFLAG(NOPARACHUTE);
icculus@11
   501
    #undef SETFLAG
icculus@11
   502
icculus@11
   503
    // There's no CDROM in 2.0, but we'll just pretend it succeeded.
icculus@11
   504
    if (sdl12flags & SDL12_INIT_CDROM)
icculus@16
   505
        CDRomInit = 1;
icculus@11
   506
icculus@11
   507
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   508
icculus@11
   509
    rc = justsubs ? SDL20_InitSubSystem(sdl20flags) : SDL20_Init(sdl20flags);
icculus@11
   510
    if ((rc == 0) && (sdl20flags & SDL_INIT_VIDEO))
icculus@18
   511
    {
icculus@20
   512
        int i;
icculus@20
   513
        for (i = 0; i < SDL12_MAXEVENTS-1; i++)
icculus@20
   514
            EventQueuePool[i].next = &EventQueuePool[i+1];
icculus@20
   515
        EventQueuePool[SDL12_MAXEVENTS-1].next = NULL;
icculus@20
   516
        EventQueueHead = EventQueueTail = NULL;
icculus@20
   517
        EventQueueAvailable = EventQueuePool;
icculus@27
   518
        SDL_memset(EventStates, SDL_ENABLE, sizeof (EventStates)); /* on by default */
icculus@27
   519
        EventStates[SDL12_SYSWMEVENT] = SDL_IGNORE;  /* off by default. */
icculus@18
   520
        SDL20_SetEventFilter(EventFilter20to12, NULL);
icculus@16
   521
        VideoDisplayIndex = GetVideoDisplay();
icculus@30
   522
        SwapInterval = 0;
icculus@18
   523
    }
icculus@18
   524
icculus@11
   525
    return rc;
icculus@11
   526
}
icculus@11
   527
icculus@35
   528
DECLSPEC int SDLCALL
icculus@11
   529
SDL_InitSubSystem(Uint32 sdl12flags)
icculus@11
   530
{
icculus@11
   531
    return DoSDLInit(1, sdl12flags);
icculus@11
   532
}
icculus@11
   533
icculus@35
   534
DECLSPEC int SDLCALL
icculus@11
   535
SDL_Init(Uint32 sdl12flags)
icculus@11
   536
{
icculus@11
   537
    return DoSDLInit(0, sdl12flags);
icculus@11
   538
}
icculus@11
   539
icculus@35
   540
DECLSPEC Uint32 SDLCALL
icculus@11
   541
SDL_WasInit(Uint32 sdl12flags)
icculus@11
   542
{
icculus@11
   543
    // !!! FIXME: this is cut and pasted several places.
icculus@11
   544
    Uint32 sdl20flags = 0;
icculus@11
   545
    Uint32 extraflags = 0;
icculus@11
   546
icculus@19
   547
    #define SETFLAG(flag) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag
icculus@11
   548
    SETFLAG(TIMER);
icculus@11
   549
    SETFLAG(AUDIO);
icculus@11
   550
    SETFLAG(VIDEO);
icculus@11
   551
    SETFLAG(JOYSTICK);
icculus@11
   552
    SETFLAG(NOPARACHUTE);
icculus@11
   553
    #undef SETFLAG
icculus@11
   554
icculus@16
   555
    if ((sdl12flags & SDL12_INIT_CDROM) && (CDRomInit))
icculus@11
   556
        extraflags |= SDL12_INIT_CDROM;
icculus@11
   557
icculus@11
   558
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   559
icculus@11
   560
    // !!! FIXME: convert back to 1.2
icculus@11
   561
    return SDL20_WasInit(sdl20flags) | extraflags;
icculus@11
   562
}
icculus@11
   563
icculus@35
   564
DECLSPEC void SDLCALL
icculus@11
   565
SDL_QuitSubSystem(Uint32 sdl12flags)
icculus@11
   566
{
icculus@11
   567
    Uint32 sdl20flags = 0;
icculus@11
   568
icculus@19
   569
    #define SETFLAG(flag) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag
icculus@11
   570
    SETFLAG(TIMER);
icculus@11
   571
    SETFLAG(AUDIO);
icculus@11
   572
    SETFLAG(VIDEO);
icculus@11
   573
    SETFLAG(JOYSTICK);
icculus@11
   574
    SETFLAG(NOPARACHUTE);
icculus@9
   575
    // There's no CDROM in 2.0, but we'll just pretend it succeeded.
icculus@9
   576
    #undef SETFLAG
icculus@9
   577
icculus@16
   578
    if (sdl12flags & SDL12_INIT_CDROM)
icculus@16
   579
        CDRomInit = 0;
icculus@16
   580
icculus@17
   581
    // !!! FIXME: reset a bunch of other global variables too.
icculus@17
   582
    if (sdl12flags & SDL12_INIT_VIDEO) {
icculus@18
   583
        EventFilter12 = NULL;
icculus@20
   584
        EventQueueAvailable = EventQueueHead = EventQueueTail = NULL;
icculus@23
   585
        CurrentCursor = NULL;
icculus@17
   586
        SDL20_FreeFormat(VideoInfo.vfmt);
icculus@34
   587
        SDL20_zero(VideoInfo);
icculus@17
   588
    }
icculus@17
   589
icculus@9
   590
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   591
    SDL20_QuitSubSystem(sdl20flags);
icculus@9
   592
icculus@11
   593
    // !!! FIXME: UnloadSDL20() ?
icculus@9
   594
}
icculus@9
   595
icculus@35
   596
DECLSPEC void SDLCALL
icculus@9
   597
SDL_Quit(void)
icculus@9
   598
{
icculus@17
   599
    // !!! FIXME: reset a bunch of other global variables too.
icculus@18
   600
    EventFilter12 = NULL;
icculus@20
   601
    EventQueueAvailable = EventQueueHead = EventQueueTail = NULL;
icculus@23
   602
    CurrentCursor = NULL;
icculus@17
   603
    SDL20_FreeFormat(VideoInfo.vfmt);
icculus@34
   604
    SDL20_zero(VideoInfo);
icculus@16
   605
    CDRomInit = 0;
icculus@9
   606
    SDL20_Quit();
icculus@9
   607
    UnloadSDL20();
icculus@9
   608
}
icculus@9
   609
icculus@35
   610
DECLSPEC void SDLCALL
icculus@11
   611
SDL_SetError(const char *fmt, ...)
icculus@11
   612
{
icculus@34
   613
    char ch;
icculus@12
   614
    char *str = NULL;
icculus@34
   615
    size_t len = 0;
icculus@12
   616
    va_list ap;
icculus@12
   617
    va_start(ap, fmt);
icculus@34
   618
    len = SDL20_vsnprintf(&ch, 1, fmt, ap);
icculus@12
   619
    va_end(ap);
icculus@34
   620
icculus@34
   621
    str = (char *) SDL20_malloc(len + 1);
icculus@12
   622
    if (!str)
icculus@12
   623
        SDL20_OutOfMemory();
icculus@12
   624
    else
icculus@12
   625
    {
icculus@34
   626
        va_start(ap, fmt);
icculus@34
   627
        SDL20_vsnprintf(str, len + 1, fmt, ap);
icculus@34
   628
        va_end(ap);
icculus@12
   629
        SDL20_SetError("%s", str);
icculus@34
   630
        SDL20_free(str);
icculus@12
   631
    }
icculus@11
   632
}
icculus@9
   633
icculus@35
   634
DECLSPEC const char * SDLCALL
icculus@9
   635
SDL_GetError(void)
icculus@9
   636
{
icculus@9
   637
    if (!Loaded_SDL20)
icculus@9
   638
    {
icculus@19
   639
        static const char noload_errstr[] = "Failed to load SDL 2.0 shared library";
icculus@9
   640
        return noload_errstr;
icculus@9
   641
    }
icculus@9
   642
    return SDL20_GetError();
icculus@9
   643
}
icculus@9
   644
icculus@9
   645
icculus@9
   646
static const char *
icculus@9
   647
GetDriverName(const char *name, char *namebuf, int maxlen)
icculus@9
   648
{
icculus@9
   649
    if (name) {
icculus@9
   650
        if (namebuf) {
icculus@9
   651
            SDL20_strlcpy(namebuf, name, maxlen);
icculus@9
   652
            return namebuf;
icculus@9
   653
        } else {
icculus@9
   654
            return name;
icculus@9
   655
        }
icculus@9
   656
    }
icculus@9
   657
    return NULL;
icculus@9
   658
}
icculus@9
   659
icculus@35
   660
DECLSPEC const char * SDLCALL
icculus@9
   661
SDL_AudioDriverName(char *namebuf, int maxlen)
icculus@9
   662
{
icculus@9
   663
    return GetDriverName(SDL20_GetCurrentAudioDriver(), namebuf, maxlen);
icculus@9
   664
}
icculus@9
   665
icculus@35
   666
DECLSPEC const char * SDLCALL
icculus@9
   667
SDL_VideoDriverName(char *namebuf, int maxlen)
icculus@9
   668
{
icculus@9
   669
    return GetDriverName(SDL20_GetCurrentVideoDriver(), namebuf, maxlen);
icculus@9
   670
}
icculus@9
   671
icculus@35
   672
DECLSPEC int SDLCALL
icculus@31
   673
SDL_PollEvent(SDL12_Event *event12)
icculus@31
   674
{
icculus@31
   675
    EventQueueType *next;
icculus@31
   676
icculus@31
   677
    SDL20_PumpEvents();  /* this will run our filter and build our 1.2 queue. */
icculus@31
   678
icculus@31
   679
    if (EventQueueHead == NULL)
icculus@31
   680
        return 0;  /* no events at the moment. */
icculus@31
   681
icculus@31
   682
    SDL_memcpy(event12, &EventQueueHead->event12, sizeof (SDL12_Event));
icculus@31
   683
    next = EventQueueHead->next;
icculus@31
   684
    EventQueueHead->next = EventQueueAvailable;
icculus@31
   685
    EventQueueAvailable = EventQueueHead;
icculus@31
   686
    EventQueueHead = next;
icculus@31
   687
    return 1;
icculus@31
   688
}
icculus@31
   689
icculus@35
   690
DECLSPEC int SDLCALL
icculus@31
   691
SDL_PushEvent(SDL12_Event *event12)
icculus@31
   692
{
icculus@31
   693
    EventQueueType *item = EventQueueAvailable;
icculus@31
   694
    if (item == NULL)
icculus@31
   695
        return -1;  /* no space available at the moment. */
icculus@31
   696
icculus@31
   697
    EventQueueAvailable = item->next;
icculus@31
   698
    if (EventQueueTail)
icculus@31
   699
        EventQueueTail->next = item;
icculus@31
   700
    else
icculus@31
   701
        EventQueueHead = EventQueueTail = item;
icculus@31
   702
    item->next = NULL;
icculus@31
   703
icculus@31
   704
    SDL_memcpy(&item->event12, event12, sizeof (SDL12_Event));
icculus@31
   705
    return 0;
icculus@31
   706
}
icculus@31
   707
icculus@35
   708
DECLSPEC int SDLCALL
icculus@31
   709
SDL_PeepEvents(SDL12_Event *events12, int numevents, SDL_eventaction action, Uint32 mask)
icculus@31
   710
{
icculus@31
   711
    if (action == SDL_ADDEVENT)
icculus@31
   712
    {
icculus@31
   713
        int i;
icculus@31
   714
        for (i = 0; i < numevents; i++)
icculus@31
   715
        {
icculus@31
   716
            if (SDL_PushEvent(&events12[i]) == -1)
icculus@31
   717
                break;  /* out of space for more events. */
icculus@31
   718
        }
icculus@31
   719
        return i;
icculus@31
   720
    }
icculus@31
   721
    else if ((action == SDL_PEEKEVENT) || (action == SDL_GETEVENT))
icculus@31
   722
    {
icculus@31
   723
        const SDL_bool isGet = (action == SDL_GETEVENT);
icculus@31
   724
        EventQueueType *prev = NULL;
icculus@31
   725
        EventQueueType *item = EventQueueHead;
icculus@31
   726
        EventQueueType *next = NULL;
icculus@31
   727
        int chosen = 0;
icculus@31
   728
        while (chosen < numevents)
icculus@31
   729
        {
icculus@31
   730
            EventQueueType *nextPrev = item;
icculus@31
   731
            if (!item)
icculus@31
   732
                break;  /* no more events at the moment. */
icculus@31
   733
icculus@31
   734
            next = item->next;  /* copy, since we might overwrite item->next */
icculus@31
   735
icculus@31
   736
            if (mask & (1<<item->event12.type))
icculus@31
   737
            {
icculus@31
   738
                SDL_memcpy(&events12[chosen++], &item->event12, sizeof (SDL12_Event));
icculus@31
   739
                if (isGet)  /* remove from list? */
icculus@31
   740
                {
icculus@31
   741
                    if (prev != NULL)
icculus@31
   742
                        prev->next = next;
icculus@31
   743
                    if (item == EventQueueHead)
icculus@31
   744
                        EventQueueHead = next;
icculus@31
   745
                    if (item == EventQueueTail)
icculus@31
   746
                        EventQueueTail = prev;
icculus@31
   747
icculus@31
   748
                    /* put it back in the free pool. */
icculus@31
   749
                    item->next = EventQueueAvailable;
icculus@31
   750
                    EventQueueAvailable = item;
icculus@31
   751
                    nextPrev = prev;  /* previous item doesn't change. */
icculus@31
   752
                }
icculus@31
   753
            }
icculus@31
   754
icculus@31
   755
            item = next;
icculus@31
   756
            prev = nextPrev;
icculus@31
   757
        }
icculus@31
   758
        return chosen;
icculus@31
   759
    }
icculus@31
   760
icculus@31
   761
    return 0;
icculus@31
   762
}
icculus@31
   763
icculus@35
   764
DECLSPEC int SDLCALL
icculus@31
   765
SDL_WaitEvent(SDL12_Event *event12)
icculus@31
   766
{
icculus@31
   767
    /* In 1.2, this only fails (-1) if you haven't SDL_Init()'d. */
icculus@31
   768
    while (!SDL_PollEvent(event12))
icculus@31
   769
        SDL_Delay(10);
icculus@31
   770
    return 1;
icculus@31
   771
}
icculus@31
   772
icculus@32
   773
static SDL_bool
icculus@32
   774
PushEventIfNotFiltered(SDL12_Event *event12)
icculus@32
   775
{
icculus@32
   776
    if (event12->type != SDL12_NOEVENT)
icculus@32
   777
    {
icculus@32
   778
        if (EventStates[event12->type] != SDL_IGNORE)
icculus@32
   779
        {
icculus@32
   780
            if ((!EventFilter12) || (EventFilter12(event12)))
icculus@32
   781
                return (SDL_PushEvent(event12) == 0);
icculus@32
   782
        }
icculus@32
   783
    }
icculus@32
   784
    return SDL_FALSE;
icculus@32
   785
}
icculus@32
   786
icculus@35
   787
DECLSPEC Uint8 SDLCALL
icculus@31
   788
SDL_EventState(Uint8 type, int state)
icculus@31
   789
{
icculus@31
   790
    /* the values of "state" match between 1.2 and 2.0 */
icculus@31
   791
    const Uint8 retval = EventStates[type];
icculus@31
   792
    SDL12_Event e;
icculus@31
   793
icculus@31
   794
    if (state != SDL_QUERY)
icculus@31
   795
        EventStates[type] = state;
icculus@31
   796
    if (state == SDL_IGNORE)  /* drop existing events of this type. */
icculus@31
   797
        while (SDL_PeepEvents(&e, 1, SDL_GETEVENT, (1<<type))) {}
icculus@31
   798
icculus@31
   799
    return retval;
icculus@31
   800
}
icculus@31
   801
icculus@35
   802
DECLSPEC Uint8 SDLCALL
icculus@35
   803
SDL_GetMouseState(int *x, int *y)
icculus@35
   804
{
icculus@35
   805
    const Uint32 state20 = SDL20_GetMouseState(x, y);
icculus@35
   806
    Uint8 retval = (state20 & 0x7);  /* left, right, and middle will match. */
icculus@35
   807
icculus@35
   808
    /* the X[12] buttons are different in 1.2; mousewheel was in the way. */
icculus@35
   809
    if (state20 & SDL_BUTTON(SDL_BUTTON_X1))
icculus@35
   810
        retval |= (1<<5);
icculus@35
   811
    if (state20 & SDL_BUTTON(SDL_BUTTON_X2))
icculus@35
   812
        retval |= (1<<6);
icculus@35
   813
icculus@35
   814
    return retval;
icculus@35
   815
}
icculus@35
   816
icculus@18
   817
static int
icculus@18
   818
EventFilter20to12(void *data, SDL_Event *event20)
icculus@15
   819
{
icculus@18
   820
    const int maxUserEvents12 = SDL12_NUMEVENTS - SDL12_USEREVENT;
icculus@18
   821
    SDL12_Event event12;
icculus@32
   822
    int x, y;
icculus@18
   823
icculus@18
   824
    SDL_assert(data == NULL);  /* currently unused. */
icculus@18
   825
icculus@34
   826
    SDL20_zero(event12);
icculus@18
   827
icculus@18
   828
    switch (event20->type)
icculus@18
   829
    {
icculus@18
   830
        case SDL_QUIT:
icculus@31
   831
            event12.type = SDL12_QUIT;
icculus@18
   832
            break;
icculus@18
   833
icculus@18
   834
        case SDL_WINDOWEVENT:
icculus@18
   835
            switch (event20->window.event)
icculus@18
   836
            {
icculus@18
   837
                case SDL_WINDOWEVENT_CLOSE:
icculus@31
   838
                    event12.type = SDL12_QUIT;
icculus@18
   839
                    break;
icculus@18
   840
icculus@18
   841
                case SDL_WINDOWEVENT_SHOWN:
icculus@18
   842
                case SDL_WINDOWEVENT_EXPOSED:
icculus@31
   843
                    event12.type = SDL12_VIDEOEXPOSE;
icculus@18
   844
                    break;
icculus@18
   845
icculus@18
   846
                case SDL_WINDOWEVENT_RESIZED:
icculus@18
   847
                case SDL_WINDOWEVENT_SIZE_CHANGED:  // !!! FIXME: what's the difference between RESIZED and SIZE_CHANGED?
icculus@31
   848
                    event12.type = SDL12_VIDEORESIZE;
icculus@31
   849
                    event12.resize.w = event20->window.data1;
icculus@31
   850
                    event12.resize.h = event20->window.data2;
icculus@18
   851
                    break;
icculus@18
   852
icculus@18
   853
                case SDL_WINDOWEVENT_MINIMIZED:
icculus@31
   854
                    event12.type = SDL12_ACTIVEEVENT;
icculus@31
   855
                    event12.active.gain = 0;
icculus@31
   856
                    event12.active.state = SDL12_APPACTIVE;
icculus@18
   857
                    break;
icculus@18
   858
icculus@18
   859
                case SDL_WINDOWEVENT_RESTORED:
icculus@31
   860
                    event12.type = SDL12_ACTIVEEVENT;
icculus@31
   861
                    event12.active.gain = 1;
icculus@31
   862
                    event12.active.state = SDL12_APPACTIVE;
icculus@18
   863
                    break;
icculus@18
   864
icculus@18
   865
                case SDL_WINDOWEVENT_ENTER:
icculus@31
   866
                    event12.type = SDL12_ACTIVEEVENT;
icculus@31
   867
                    event12.active.gain = 1;
icculus@31
   868
                    event12.active.state = SDL12_APPMOUSEFOCUS;
icculus@18
   869
                    break;
icculus@18
   870
icculus@18
   871
                case SDL_WINDOWEVENT_LEAVE:
icculus@31
   872
                    event12.type = SDL12_ACTIVEEVENT;
icculus@31
   873
                    event12.active.gain = 0;
icculus@31
   874
                    event12.active.state = SDL12_APPMOUSEFOCUS;
icculus@18
   875
                    break;
icculus@18
   876
icculus@18
   877
                case SDL_WINDOWEVENT_FOCUS_GAINED:
icculus@31
   878
                    event12.type = SDL12_ACTIVEEVENT;
icculus@31
   879
                    event12.active.gain = 1;
icculus@31
   880
                    event12.active.state = SDL12_APPINPUTFOCUS;
icculus@18
   881
                    break;
icculus@18
   882
icculus@18
   883
                case SDL_WINDOWEVENT_FOCUS_LOST:
icculus@31
   884
                    event12.type = SDL12_ACTIVEEVENT;
icculus@31
   885
                    event12.active.gain = 0;
icculus@31
   886
                    event12.active.state = SDL12_APPINPUTFOCUS;
icculus@18
   887
                    break;
icculus@18
   888
            }
icculus@18
   889
            break;
icculus@18
   890
icculus@18
   891
        // !!! FIXME: this is sort of a mess to convert.
icculus@18
   892
        //case SDL_SYSWMEVENT:
icculus@18
   893
icculus@18
   894
        // !!! FIXME: write me
icculus@18
   895
        case SDL_KEYDOWN:
icculus@18
   896
        case SDL_KEYUP:
icculus@18
   897
            return 0;
icculus@18
   898
icculus@18
   899
        // !!! FIXME: write me
icculus@18
   900
        case SDL_TEXTEDITING:
icculus@18
   901
        case SDL_TEXTINPUT:
icculus@18
   902
            return 0;
icculus@18
   903
icculus@18
   904
        case SDL_MOUSEMOTION:
icculus@31
   905
        	event12.type = SDL12_MOUSEMOTION;
icculus@31
   906
            event12.motion.which = (Uint8) event20->motion.which;
icculus@31
   907
            event12.motion.state = event20->motion.state;
icculus@31
   908
            event12.motion.x = (Uint16) event20->motion.x;
icculus@31
   909
            event12.motion.y = (Uint16) event20->motion.y;
icculus@31
   910
            event12.motion.xrel = (Sint16) event20->motion.xrel;
icculus@31
   911
            event12.motion.yrel = (Sint16) event20->motion.yrel;
icculus@18
   912
            break;
icculus@18
   913
icculus@18
   914
        case SDL_MOUSEBUTTONDOWN:
icculus@31
   915
        	event12.type = SDL12_MOUSEBUTTONDOWN;
icculus@31
   916
            event12.button.which = (Uint8) event20->button.which;
icculus@31
   917
            event12.button.button = event20->button.button;
icculus@31
   918
            event12.button.state = event20->button.state;
icculus@31
   919
            event12.button.x = (Uint16) event20->button.x;
icculus@31
   920
            event12.button.y = (Uint16) event20->button.y;
icculus@18
   921
            break;
icculus@18
   922
icculus@18
   923
        case SDL_MOUSEBUTTONUP:
icculus@31
   924
        	event12.type = SDL12_MOUSEBUTTONUP;
icculus@31
   925
            event12.button.which = (Uint8) event20->button.which;
icculus@31
   926
            event12.button.button = event20->button.button;
icculus@31
   927
            event12.button.state = event20->button.state;
icculus@31
   928
            event12.button.x = (Uint16) event20->button.x;
icculus@31
   929
            event12.button.y = (Uint16) event20->button.y;
icculus@18
   930
            break;
icculus@18
   931
icculus@18
   932
        case SDL_MOUSEWHEEL:
icculus@32
   933
            if (event20->wheel.y == 0)
icculus@32
   934
                break;  /* don't support horizontal wheels in 1.2. */
icculus@32
   935
icculus@32
   936
            event12.type = SDL12_MOUSEBUTTONDOWN;
icculus@32
   937
            event12.button.which = (Uint8) event20->wheel.which;
icculus@32
   938
            event12.button.button = (event20->wheel.y > 0) ? 4 : 5;  /* wheelup is 4, down is 5. */
icculus@32
   939
            event12.button.state = SDL_GetMouseState(&x, &y);
icculus@32
   940
            event12.button.x = (Uint16) x;
icculus@32
   941
            event12.button.y = (Uint16) y;
icculus@32
   942
            PushEventIfNotFiltered(&event12);
icculus@32
   943
icculus@32
   944
            event12.type = SDL12_MOUSEBUTTONUP;  /* immediately release mouse "button" at the end of this switch. */
icculus@18
   945
            break;
icculus@18
   946
icculus@18
   947
        case SDL_JOYAXISMOTION:
icculus@31
   948
            event12.type = SDL12_JOYAXISMOTION;
icculus@31
   949
            event12.jaxis.which = (Uint8) event20->jaxis.which;
icculus@31
   950
            event12.jaxis.axis = event20->jaxis.axis;
icculus@31
   951
            event12.jaxis.value = event20->jaxis.value;
icculus@18
   952
            break;
icculus@18
   953
icculus@18
   954
        case SDL_JOYBALLMOTION:
icculus@31
   955
            event12.type = SDL12_JOYBALLMOTION;
icculus@31
   956
            event12.jball.which = (Uint8) event20->jball.which;
icculus@31
   957
            event12.jball.ball = event20->jball.ball;
icculus@31
   958
            event12.jball.xrel = event20->jball.xrel;
icculus@31
   959
            event12.jball.yrel = event20->jball.yrel;
icculus@18
   960
            break;
icculus@18
   961
icculus@18
   962
        case SDL_JOYHATMOTION:
icculus@31
   963
            event12.type = SDL12_JOYHATMOTION;
icculus@31
   964
            event12.jhat.which = (Uint8) event20->jhat.which;
icculus@31
   965
            event12.jhat.hat = event20->jhat.hat;
icculus@31
   966
            event12.jhat.value = event20->jhat.value;
icculus@18
   967
            break;
icculus@18
   968
icculus@18
   969
        case SDL_JOYBUTTONDOWN:
icculus@31
   970
            event12.type = SDL12_JOYBUTTONDOWN;
icculus@31
   971
            event12.jbutton.which = (Uint8) event20->jbutton.which;
icculus@31
   972
            event12.jbutton.button = event20->jbutton.button;
icculus@31
   973
            event12.jbutton.state = event20->jbutton.state;
icculus@18
   974
            break;
icculus@18
   975
icculus@18
   976
        case SDL_JOYBUTTONUP:
icculus@31
   977
            event12.type = SDL12_JOYBUTTONUP;
icculus@31
   978
            event12.jbutton.which = (Uint8) event20->jbutton.which;
icculus@31
   979
            event12.jbutton.button = event20->jbutton.button;
icculus@31
   980
            event12.jbutton.state = event20->jbutton.state;
icculus@18
   981
            break;
icculus@18
   982
icculus@18
   983
        //case SDL_JOYDEVICEADDED:
icculus@18
   984
        //case SDL_JOYDEVICEREMOVED:
icculus@18
   985
	    //case SDL_CONTROLLERAXISMOTION:
icculus@18
   986
	    //case SDL_CONTROLLERBUTTONDOWN:
icculus@18
   987
	    //case SDL_CONTROLLERBUTTONUP:
icculus@18
   988
	    //case SDL_CONTROLLERDEVICEADDED:
icculus@18
   989
	    //case SDL_CONTROLLERDEVICEREMOVED:
icculus@18
   990
	    //case SDL_CONTROLLERDEVICEREMAPPED:
icculus@18
   991
        //case SDL_FINGERDOWN:
icculus@18
   992
        //case SDL_FINGERUP:
icculus@18
   993
        //case SDL_FINGERMOTION:
icculus@18
   994
        //case SDL_DOLLARGESTURE:
icculus@18
   995
        //case SDL_DOLLARRECORD:
icculus@18
   996
        //case SDL_MULTIGESTURE:
icculus@18
   997
        //case SDL_CLIPBOARDUPDATE:
icculus@18
   998
        //case SDL_DROPFILE:
icculus@18
   999
icculus@18
  1000
        default:
icculus@18
  1001
            return 0;  /* drop everything else. */
icculus@18
  1002
    }
icculus@18
  1003
icculus@32
  1004
    PushEventIfNotFiltered(&event12);
icculus@18
  1005
icculus@18
  1006
    return 0;  /* always drop it from the 2.0 event queue. */
icculus@18
  1007
}
icculus@18
  1008
icculus@35
  1009
DECLSPEC void SDLCALL
icculus@18
  1010
SDL_SetEventFilter(SDL12_EventFilter filter12)
icculus@18
  1011
{
icculus@18
  1012
    /* We always have a filter installed, but will call the app's too. */
icculus@18
  1013
    EventFilter12 = filter12;
icculus@18
  1014
}
icculus@18
  1015
icculus@35
  1016
DECLSPEC SDL12_EventFilter SDLCALL
icculus@18
  1017
SDL_GetEventFilter(void)
icculus@18
  1018
{
icculus@18
  1019
    return EventFilter12;
icculus@18
  1020
}
icculus@18
  1021
icculus@15
  1022
icculus@34
  1023
static SDL12_Surface *
icculus@15
  1024
Surface20to12(SDL_Surface *surface20)
icculus@15
  1025
{
icculus@15
  1026
    SDL12_Surface *surface12 = NULL;
icculus@15
  1027
    SDL12_Palette *palette12 = NULL;
icculus@15
  1028
    SDL12_PixelFormat *format12 = NULL;
icculus@31
  1029
    Uint32 flags = 0;
icculus@15
  1030
icculus@15
  1031
    if (!surface20)
icculus@15
  1032
        return NULL;
icculus@15
  1033
icculus@15
  1034
    surface12 = (SDL12_Surface *) SDL20_malloc(sizeof (SDL12_Surface));
icculus@15
  1035
    if (!surface12)
icculus@15
  1036
        goto failed;
icculus@15
  1037
icculus@15
  1038
    palette12 = (SDL12_Palette *) SDL20_malloc(sizeof (SDL12_Palette));
icculus@15
  1039
    if (!palette12)
icculus@15
  1040
        goto failed;
icculus@15
  1041
icculus@15
  1042
    format12 = (SDL12_PixelFormat *) SDL20_malloc(sizeof (SDL12_PixelFormat));
icculus@15
  1043
    if (!format12)
icculus@15
  1044
        goto failed;
icculus@15
  1045
icculus@34
  1046
    SDL20_zerop(palette12);
icculus@31
  1047
    palette12->ncolors = surface20->format->palette->ncolors;
icculus@31
  1048
    palette12->colors = surface20->format->palette->colors;
icculus@15
  1049
icculus@34
  1050
    SDL20_zerop(format12);
icculus@15
  1051
    format12->palette = palette12;
icculus@15
  1052
    format12->BitsPerPixel = surface20->format->BitsPerPixel;
icculus@15
  1053
    format12->BytesPerPixel = surface20->format->BytesPerPixel;
icculus@15
  1054
    format12->Rloss = surface20->format->Rloss;
icculus@15
  1055
    format12->Gloss = surface20->format->Gloss;
icculus@15
  1056
    format12->Bloss = surface20->format->Bloss;
icculus@15
  1057
    format12->Aloss = surface20->format->Aloss;
icculus@15
  1058
    format12->Rshift = surface20->format->Rshift;
icculus@15
  1059
    format12->Gshift = surface20->format->Gshift;
icculus@15
  1060
    format12->Bshift = surface20->format->Bshift;
icculus@15
  1061
    format12->Ashift = surface20->format->Ashift;
icculus@15
  1062
    format12->Rmask = surface20->format->Rmask;
icculus@15
  1063
    format12->Gmask = surface20->format->Gmask;
icculus@15
  1064
    format12->Bmask = surface20->format->Bmask;
icculus@15
  1065
    format12->Amask = surface20->format->Amask;
icculus@15
  1066
    /* !!! FIXME: format12->colorkey; */
icculus@15
  1067
    /* !!! FIXME: format12->alpha; */
icculus@15
  1068
icculus@34
  1069
    SDL20_zerop(surface12);
icculus@15
  1070
    flags = surface20->flags;
icculus@15
  1071
    #define MAPSURFACEFLAGS(fl) { if (surface20->flags & SDL_##fl) { surface12->flags |= SDL12_##fl; flags &= ~SDL_##fl; } }
icculus@15
  1072
    MAPSURFACEFLAGS(PREALLOC);
icculus@15
  1073
    MAPSURFACEFLAGS(RLEACCEL);
icculus@34
  1074
    /*MAPSURFACEFLAGS(DONTFREE);*/
icculus@15
  1075
    #undef MAPSURFACEFLAGS
icculus@31
  1076
    SDL_assert(flags == 0);  /* non-zero if there's a flag we didn't map. */
icculus@15
  1077
icculus@15
  1078
    surface12->format = format12;
icculus@15
  1079
    surface12->w = surface20->w;
icculus@15
  1080
    surface12->h = surface20->h;
icculus@15
  1081
    surface12->pitch = (Uint16) surface20->pitch;  /* !!! FIXME: make sure this fits in a Uint16 */
icculus@15
  1082
    surface12->pixels = surface20->pixels;
icculus@15
  1083
    surface12->offset = 0;
icculus@34
  1084
    surface12->surface20 = surface20;
icculus@15
  1085
    SDL20_memcpy(&surface12->clip_rect, &surface20->clip_rect, sizeof (SDL_Rect));
icculus@15
  1086
    surface12->refcount = surface20->refcount;
icculus@15
  1087
icculus@15
  1088
    return surface12;
icculus@15
  1089
icculus@15
  1090
failed:
icculus@15
  1091
    SDL20_free(surface12);
icculus@15
  1092
    SDL20_free(palette12);
icculus@15
  1093
    SDL20_free(format12);
icculus@15
  1094
    return NULL;
icculus@15
  1095
}
icculus@15
  1096
icculus@35
  1097
DECLSPEC SDL12_Surface * SDLCALL
icculus@15
  1098
SDL_CreateRGBSurface(Uint32 sdl12flags, int width, int height, int depth, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
icculus@15
  1099
{
icculus@15
  1100
    SDL_Surface *surface20 = SDL20_CreateRGBSurface(0, width, height, depth, Rmask, Gmask, Bmask, Amask);
icculus@15
  1101
    SDL12_Surface *surface12 = Surface20to12(surface20);
icculus@15
  1102
    if (!surface12) {
icculus@15
  1103
        SDL20_FreeSurface(surface20);
icculus@15
  1104
        return NULL;
icculus@15
  1105
    }
icculus@15
  1106
icculus@31
  1107
    SDL_assert(surface12->flags == 0);  // shouldn't have prealloc, rleaccel, or dontfree.
icculus@15
  1108
    return surface12;
icculus@15
  1109
}
icculus@15
  1110
icculus@35
  1111
DECLSPEC SDL12_Surface * SDLCALL
icculus@15
  1112
SDL_CreateRGBSurfaceFrom(void *pixels, int width, int height, int depth, int pitch, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
icculus@15
  1113
{
icculus@31
  1114
    SDL_Surface *surface20 = SDL20_CreateRGBSurfaceFrom(pixels, width, height, depth, pitch, Rmask, Gmask, Bmask, Amask);
icculus@15
  1115
    SDL12_Surface *surface12 = Surface20to12(surface20);
icculus@15
  1116
    if (!surface12) {
icculus@15
  1117
        SDL20_FreeSurface(surface20);
icculus@15
  1118
        return NULL;
icculus@15
  1119
    }
icculus@15
  1120
icculus@31
  1121
    SDL_assert(surface12->flags == SDL12_PREALLOC);  // should _only_ have prealloc.
icculus@15
  1122
    return surface12;
icculus@15
  1123
}
icculus@15
  1124
icculus@35
  1125
DECLSPEC void SDLCALL
icculus@35
  1126
SDL_FreeSurface(SDL12_Surface *surface12)
icculus@15
  1127
{
icculus@15
  1128
    if (surface12) {
icculus@34
  1129
        SDL20_FreeSurface(surface12->surface20);
icculus@15
  1130
        if (surface12->format) {
icculus@15
  1131
            SDL20_free(surface12->format->palette);
icculus@15
  1132
            SDL20_free(surface12->format);
icculus@15
  1133
        }
icculus@15
  1134
        SDL20_free(surface12);
icculus@15
  1135
    }
icculus@15
  1136
}
icculus@15
  1137
icculus@35
  1138
DECLSPEC void SDLCALL
icculus@24
  1139
SDL_GetClipRect(SDL12_Surface *surface12, SDL_Rect *rect)
icculus@24
  1140
{
icculus@24
  1141
    if (surface12 && rect)
icculus@24
  1142
	    SDL_memcpy(rect, &surface12->clip_rect, sizeof (SDL_Rect));
icculus@24
  1143
}
icculus@24
  1144
icculus@35
  1145
DECLSPEC SDL_bool SDLCALL
icculus@24
  1146
SDL_SetClipRect(SDL12_Surface *surface12, const SDL_Rect *rect)
icculus@24
  1147
{
icculus@24
  1148
    SDL_bool retval = SDL_FALSE;
icculus@24
  1149
    if (surface12)
icculus@24
  1150
    {
icculus@34
  1151
        retval = SDL20_SetClipRect(surface12->surface20, rect);
icculus@34
  1152
        SDL20_GetClipRect(surface12->surface20, &surface12->clip_rect);
icculus@24
  1153
    }
icculus@24
  1154
    return retval;
icculus@24
  1155
}
icculus@24
  1156
icculus@35
  1157
DECLSPEC int SDLCALL
icculus@25
  1158
SDL_FillRect(SDL12_Surface *dst, SDL_Rect *dstrect, Uint32 color)
icculus@25
  1159
{
icculus@25
  1160
    const SDL_Rect orig_dstrect = *dstrect;
icculus@34
  1161
    const int retval = SDL20_FillRect(dst->surface20, &orig_dstrect, color);
icculus@25
  1162
    if (retval != -1)
icculus@25
  1163
    {
icculus@25
  1164
        if (dstrect)  /* 1.2 stores the clip intersection in dstrect */
icculus@31
  1165
            SDL20_IntersectRect(&orig_dstrect, &dst->clip_rect, dstrect);
icculus@25
  1166
    }
icculus@25
  1167
    return retval;
icculus@25
  1168
}
icculus@25
  1169
icculus@25
  1170
icculus@17
  1171
static SDL_PixelFormat *
icculus@31
  1172
PixelFormat12to20(SDL_PixelFormat *format20, SDL_Palette *palette20, const SDL12_PixelFormat *format12)
icculus@17
  1173
{
icculus@17
  1174
    palette20->ncolors = format12->palette->ncolors;
icculus@17
  1175
    palette20->colors = format12->palette->colors;
icculus@17
  1176
    palette20->version = 1;
icculus@17
  1177
    palette20->refcount = 1;
icculus@34
  1178
    format20->format = SDL20_MasksToPixelFormatEnum(format12->BitsPerPixel, format12->Rmask, format12->Gmask, format12->Bmask, format12->Amask);
icculus@17
  1179
    format20->palette = palette20;
icculus@17
  1180
    format20->BitsPerPixel = format12->BitsPerPixel;
icculus@17
  1181
    format20->BytesPerPixel = format12->BytesPerPixel;
icculus@17
  1182
    format20->Rmask = format12->Rmask;
icculus@17
  1183
    format20->Gmask = format12->Gmask;
icculus@17
  1184
    format20->Bmask = format12->Bmask;
icculus@17
  1185
    format20->Amask = format12->Amask;
icculus@17
  1186
    format20->Rloss = format12->Rloss;
icculus@17
  1187
    format20->Gloss = format12->Gloss;
icculus@17
  1188
    format20->Bloss = format12->Bloss;
icculus@17
  1189
    format20->Aloss = format12->Aloss;
icculus@17
  1190
    format20->Rshift = format12->Rshift;
icculus@17
  1191
    format20->Gshift = format12->Gshift;
icculus@17
  1192
    format20->Bshift = format12->Bshift;
icculus@17
  1193
    format20->Ashift = format12->Ashift;
icculus@17
  1194
    format20->refcount = 1;
icculus@17
  1195
    format20->next = NULL;
icculus@17
  1196
    return format20;
icculus@17
  1197
}
icculus@17
  1198
icculus@35
  1199
DECLSPEC Uint32 SDLCALL
icculus@17
  1200
SDL_MapRGB(const SDL12_PixelFormat *format12, Uint8 r, Uint8 g, Uint8 b)
icculus@17
  1201
{
icculus@17
  1202
    /* This is probably way slower than apps expect. */
icculus@17
  1203
    SDL_PixelFormat format20;
icculus@17
  1204
    SDL_Palette palette20;
icculus@17
  1205
    return SDL20_MapRGB(PixelFormat12to20(&format20, &palette20, format12), r, g, b);
icculus@17
  1206
}
icculus@17
  1207
icculus@35
  1208
DECLSPEC Uint32 SDLCALL
icculus@17
  1209
SDL_MapRGBA(const SDL12_PixelFormat *format12, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
icculus@17
  1210
{
icculus@17
  1211
    /* This is probably way slower than apps expect. */
icculus@17
  1212
    SDL_PixelFormat format20;
icculus@17
  1213
    SDL_Palette palette20;
icculus@17
  1214
    return SDL20_MapRGBA(PixelFormat12to20(&format20, &palette20, format12), r, g, b, a);
icculus@17
  1215
}
icculus@17
  1216
icculus@35
  1217
DECLSPEC void SDLCALL
icculus@17
  1218
SDL_GetRGB(Uint32 pixel, const SDL12_PixelFormat *format12, Uint8 *r, Uint8 *g, Uint8 *b)
icculus@17
  1219
{
icculus@17
  1220
    /* This is probably way slower than apps expect. */
icculus@17
  1221
    SDL_PixelFormat format20;
icculus@17
  1222
    SDL_Palette palette20;
icculus@17
  1223
    return SDL20_GetRGB(pixel, PixelFormat12to20(&format20, &palette20, format12), r, g, b);
icculus@17
  1224
}
icculus@17
  1225
icculus@35
  1226
DECLSPEC void SDLCALL
icculus@17
  1227
SDL_GetRGBA(Uint32 pixel, const SDL12_PixelFormat *format12, Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *a)
icculus@17
  1228
{
icculus@17
  1229
    /* This is probably way slower than apps expect. */
icculus@17
  1230
    SDL_PixelFormat format20;
icculus@17
  1231
    SDL_Palette palette20;
icculus@31
  1232
    return SDL20_GetRGBA(pixel, PixelFormat12to20(&format20, &palette20, format12), r, g, b, a);
icculus@17
  1233
}
icculus@15
  1234
icculus@35
  1235
DECLSPEC const SDL12_VideoInfo * SDLCALL
icculus@9
  1236
SDL_GetVideoInfo(void)
icculus@9
  1237
{
icculus@9
  1238
    SDL_DisplayMode mode;
icculus@9
  1239
icculus@17
  1240
    if (!VideoInfo.vfmt && SDL20_GetDesktopDisplayMode(VideoDisplayIndex, &mode) == 0) {
icculus@17
  1241
        VideoInfo.vfmt = SDL20_AllocFormat(mode.format);
icculus@17
  1242
        VideoInfo.current_w = mode.w;
icculus@17
  1243
        VideoInfo.current_h = mode.h;
icculus@9
  1244
        // !!! FIXME
icculus@17
  1245
        //VideoInfo.wm_available = 1;
icculus@17
  1246
        //VideoInfo.video_mem = 1024 * 256;
icculus@9
  1247
    }
icculus@17
  1248
    return &VideoInfo;
icculus@9
  1249
}
icculus@9
  1250
icculus@35
  1251
DECLSPEC int SDLCALL
icculus@9
  1252
SDL_VideoModeOK(int width, int height, int bpp, Uint32 sdl12flags)
icculus@9
  1253
{
icculus@9
  1254
    int i, nummodes, actual_bpp = 0;
icculus@9
  1255
icculus@9
  1256
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@9
  1257
        return 0;
icculus@9
  1258
    }
icculus@9
  1259
icculus@9
  1260
    if (!(sdl12flags & SDL12_FULLSCREEN)) {
icculus@9
  1261
        SDL_DisplayMode mode;
icculus@16
  1262
        SDL20_GetDesktopDisplayMode(VideoDisplayIndex, &mode);
icculus@9
  1263
        return SDL_BITSPERPIXEL(mode.format);
icculus@9
  1264
    }
icculus@9
  1265
icculus@16
  1266
    nummodes = SDL20_GetNumDisplayModes(VideoDisplayIndex);
icculus@9
  1267
    for (i = 0; i < nummodes; ++i) {
icculus@9
  1268
        SDL_DisplayMode mode;
icculus@16
  1269
        SDL20_GetDisplayMode(VideoDisplayIndex, i, &mode);
icculus@9
  1270
        if (!mode.w || !mode.h || (width == mode.w && height == mode.h)) {
icculus@9
  1271
            if (!mode.format) {
icculus@9
  1272
                return bpp;
icculus@9
  1273
            }
icculus@9
  1274
            if (SDL_BITSPERPIXEL(mode.format) >= (Uint32) bpp) {
icculus@9
  1275
                actual_bpp = SDL_BITSPERPIXEL(mode.format);
icculus@9
  1276
            }
icculus@9
  1277
        }
icculus@9
  1278
    }
icculus@9
  1279
    return actual_bpp;
icculus@9
  1280
}
icculus@9
  1281
icculus@34
  1282
#if SANITY_CHECK_THIS_CODE
icculus@35
  1283
DECLSPEC SDL_Rect ** SDLCALL
icculus@17
  1284
SDL_ListModes(const SDL12_PixelFormat *format, Uint32 flags)
icculus@9
  1285
{
icculus@9
  1286
    int i, nmodes;
icculus@9
  1287
    SDL_Rect **modes;
icculus@9
  1288
icculus@9
  1289
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@9
  1290
        return NULL;
icculus@9
  1291
    }
icculus@9
  1292
icculus@9
  1293
    if (!(flags & SDL12_FULLSCREEN)) {
icculus@9
  1294
        return (SDL_Rect **) (-1);
icculus@9
  1295
    }
icculus@9
  1296
icculus@9
  1297
    if (!format) {
icculus@17
  1298
        format = VideoInfo.vfmt;
icculus@9
  1299
    }
icculus@9
  1300
icculus@17
  1301
    /* !!! FIXME: Memory leak */
icculus@9
  1302
    nmodes = 0;
icculus@9
  1303
    modes = NULL;
icculus@16
  1304
    for (i = 0; i < SDL20_GetNumDisplayModes(VideoDisplayIndex); ++i) {
icculus@9
  1305
        SDL_DisplayMode mode;
icculus@9
  1306
        int bpp;
icculus@9
  1307
icculus@16
  1308
        SDL20_GetDisplayMode(VideoDisplayIndex, i, &mode);
icculus@9
  1309
        if (!mode.w || !mode.h) {
icculus@9
  1310
            return (SDL_Rect **) (-1);
icculus@9
  1311
        }
icculus@9
  1312
        
icculus@9
  1313
        /* Copied from src/video/SDL_pixels.c:SDL_PixelFormatEnumToMasks */
icculus@9
  1314
        if (SDL_BYTESPERPIXEL(mode.format) <= 2) {
icculus@9
  1315
            bpp = SDL_BITSPERPIXEL(mode.format);
icculus@9
  1316
        } else {
icculus@9
  1317
            bpp = SDL_BYTESPERPIXEL(mode.format) * 8;
icculus@9
  1318
        }
icculus@9
  1319
icculus@9
  1320
        if (bpp != format->BitsPerPixel) {
icculus@9
  1321
            continue;
icculus@9
  1322
        }
icculus@9
  1323
        if (nmodes > 0 && modes[nmodes - 1]->w == mode.w
icculus@9
  1324
            && modes[nmodes - 1]->h == mode.h) {
icculus@9
  1325
            continue;
icculus@9
  1326
        }
icculus@9
  1327
icculus@17
  1328
        modes = SDL20_realloc(modes, (nmodes + 2) * sizeof(*modes));
icculus@9
  1329
        if (!modes) {
icculus@9
  1330
            return NULL;
icculus@9
  1331
        }
icculus@17
  1332
        modes[nmodes] = (SDL_Rect *) SDL20_malloc(sizeof(SDL_Rect));
icculus@9
  1333
        if (!modes[nmodes]) {
icculus@9
  1334
            return NULL;
icculus@9
  1335
        }
icculus@9
  1336
        modes[nmodes]->x = 0;
icculus@9
  1337
        modes[nmodes]->y = 0;
icculus@9
  1338
        modes[nmodes]->w = mode.w;
icculus@9
  1339
        modes[nmodes]->h = mode.h;
icculus@9
  1340
        ++nmodes;
icculus@9
  1341
    }
icculus@9
  1342
    if (modes) {
icculus@9
  1343
        modes[nmodes] = NULL;
icculus@9
  1344
    }
icculus@9
  1345
    return modes;
icculus@9
  1346
}
icculus@34
  1347
#endif
icculus@9
  1348
icculus@35
  1349
DECLSPEC void SDLCALL
icculus@31
  1350
SDL_FreeCursor(SDL12_Cursor *cursor12)
icculus@31
  1351
{
icculus@31
  1352
    if (cursor12)
icculus@31
  1353
    {
icculus@31
  1354
        if (cursor12->wm_cursor)
icculus@31
  1355
            SDL20_FreeCursor(cursor12->wm_cursor);
icculus@31
  1356
        SDL20_free(cursor12->data);
icculus@31
  1357
        SDL20_free(cursor12->mask);
icculus@31
  1358
        SDL20_free(cursor12);
icculus@31
  1359
    }
icculus@31
  1360
}
icculus@23
  1361
icculus@35
  1362
DECLSPEC SDL12_Cursor * SDLCALL
icculus@23
  1363
SDL_CreateCursor(Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
icculus@23
  1364
{
icculus@23
  1365
    const size_t datasize = h * (w / 8);
icculus@23
  1366
    SDL_Cursor *cursor20 = NULL;
icculus@23
  1367
    SDL12_Cursor *retval = NULL;
icculus@23
  1368
icculus@23
  1369
    retval = (SDL12_Cursor *) SDL20_malloc(sizeof (SDL12_Cursor));
icculus@23
  1370
    if (!retval)
icculus@23
  1371
        goto outofmem;
icculus@23
  1372
icculus@34
  1373
    SDL20_zerop(retval);
icculus@23
  1374
icculus@23
  1375
    retval->data = (Uint8 *) SDL20_malloc(datasize);
icculus@31
  1376
    if (!retval->data)
icculus@23
  1377
        goto outofmem;
icculus@23
  1378
icculus@23
  1379
    retval->mask = (Uint8 *) SDL20_malloc(datasize);
icculus@31
  1380
    if (!retval->mask)
icculus@23
  1381
        goto outofmem;
icculus@23
  1382
icculus@23
  1383
    cursor20 = SDL20_CreateCursor(data, mask, w, h, hot_x, hot_y);
icculus@23
  1384
    if (!cursor20)
icculus@23
  1385
        goto failed;
icculus@23
  1386
icculus@23
  1387
    retval->area.w = w;
icculus@23
  1388
    retval->area.h = h;
icculus@23
  1389
    retval->hot_x = hot_x;
icculus@23
  1390
    retval->hot_y = hot_y;
icculus@23
  1391
    retval->wm_cursor = cursor20;
icculus@23
  1392
    /* we always leave retval->save as null pointers. */
icculus@23
  1393
icculus@23
  1394
    SDL20_memcpy(retval->data, data, datasize);
icculus@23
  1395
    SDL20_memcpy(retval->mask, mask, datasize);
icculus@23
  1396
icculus@23
  1397
    return retval;
icculus@23
  1398
icculus@23
  1399
outofmem:
icculus@31
  1400
    SDL20_OutOfMemory();
icculus@23
  1401
icculus@23
  1402
failed:
icculus@23
  1403
    SDL_FreeCursor(retval);
icculus@23
  1404
    return NULL;
icculus@23
  1405
}
icculus@23
  1406
icculus@35
  1407
DECLSPEC void SDLCALL
icculus@23
  1408
SDL_SetCursor(SDL12_Cursor *cursor)
icculus@23
  1409
{
icculus@23
  1410
    CurrentCursor = cursor;
icculus@23
  1411
    SDL20_SetCursor(cursor ? cursor->wm_cursor : NULL);
icculus@23
  1412
}
icculus@23
  1413
icculus@35
  1414
DECLSPEC SDL12_Cursor * SDLCALL
icculus@23
  1415
SDL_GetCursor(void)
icculus@23
  1416
{
icculus@23
  1417
    return CurrentCursor;
icculus@23
  1418
}
icculus@23
  1419
icculus@9
  1420
static void
icculus@9
  1421
GetEnvironmentWindowPosition(int w, int h, int *x, int *y)
icculus@9
  1422
{
icculus@16
  1423
    int display = VideoDisplayIndex;
icculus@9
  1424
    const char *window = SDL_getenv("SDL_VIDEO_WINDOW_POS");
icculus@9
  1425
    const char *center = SDL_getenv("SDL_VIDEO_CENTERED");
icculus@9
  1426
    if (window) {
icculus@9
  1427
        if (SDL_sscanf(window, "%d,%d", x, y) == 2) {
icculus@9
  1428
            return;
icculus@9
  1429
        }
icculus@9
  1430
        if (SDL_strcmp(window, "center") == 0) {
icculus@9
  1431
            center = window;
icculus@9
  1432
        }
icculus@9
  1433
    }
icculus@9
  1434
    if (center) {
icculus@9
  1435
        *x = SDL_WINDOWPOS_CENTERED_DISPLAY(display);
icculus@9
  1436
        *y = SDL_WINDOWPOS_CENTERED_DISPLAY(display);
icculus@9
  1437
    }
icculus@9
  1438
}
icculus@9
  1439
icculus@34
  1440
#if SANITY_CHECK_THIS_CODE
icculus@9
  1441
static void
icculus@9
  1442
ClearVideoSurface()
icculus@9
  1443
{
icculus@16
  1444
    if (ShadowSurface) {
icculus@17
  1445
        SDL20_FillRect(ShadowSurface, NULL,
icculus@17
  1446
            SDL20_MapRGB(ShadowSurface->format, 0, 0, 0));
icculus@9
  1447
    }
icculus@17
  1448
    SDL20_FillRect(WindowSurface, NULL, 0);
icculus@19
  1449
    SDL20_UpdateWindowSurface(VideoWindow20);
icculus@9
  1450
}
icculus@34
  1451
#endif
icculus@9
  1452
icculus@9
  1453
static void
icculus@19
  1454
SetupScreenSaver(int flags12)
icculus@9
  1455
{
icculus@9
  1456
    const char *env;
icculus@9
  1457
    SDL_bool allow_screensaver;
icculus@9
  1458
icculus@9
  1459
    /* Allow environment override of screensaver disable */
icculus@9
  1460
    env = SDL_getenv("SDL_VIDEO_ALLOW_SCREENSAVER");
icculus@9
  1461
    if (env) {
icculus@34
  1462
        allow_screensaver = SDL20_atoi(env) ? SDL_TRUE : SDL_FALSE;
icculus@19
  1463
    } else if (flags12 & SDL12_FULLSCREEN) {
icculus@9
  1464
        allow_screensaver = SDL_FALSE;
icculus@9
  1465
    } else {
icculus@9
  1466
        allow_screensaver = SDL_TRUE;
icculus@9
  1467
    }
icculus@9
  1468
    if (allow_screensaver) {
icculus@17
  1469
        SDL20_EnableScreenSaver();
icculus@9
  1470
    } else {
icculus@17
  1471
        SDL20_DisableScreenSaver();
icculus@9
  1472
    }
icculus@9
  1473
}
icculus@9
  1474
icculus@34
  1475
#if SANITY_CHECK_THIS_CODE
icculus@9
  1476
static int
icculus@19
  1477
ResizeVideoMode(int width, int height, int bpp, Uint32 flags12)
icculus@9
  1478
{
icculus@9
  1479
    int w, h;
icculus@9
  1480
icculus@9
  1481
    /* We can't resize something we don't have... */
icculus@16
  1482
    if (!VideoSurface) {
icculus@9
  1483
        return -1;
icculus@9
  1484
    }
icculus@9
  1485
icculus@9
  1486
    /* We probably have to recreate the window in fullscreen mode */
icculus@19
  1487
    if (flags12 & SDL12_FULLSCREEN) {
icculus@9
  1488
        return -1;
icculus@9
  1489
    }
icculus@9
  1490
icculus@9
  1491
    /* I don't think there's any change we can gracefully make in flags */
icculus@19
  1492
    if (flags12 != VideoFlags) {
icculus@9
  1493
        return -1;
icculus@9
  1494
    }
icculus@16
  1495
    if (bpp != VideoSurface->format->BitsPerPixel) {
icculus@9
  1496
        return -1;
icculus@9
  1497
    }
icculus@9
  1498
icculus@9
  1499
    /* Resize the window */
icculus@19
  1500
    SDL20_GetWindowSize(VideoWindow20, &w, &h);
icculus@9
  1501
    if (w != width || h != height) {
icculus@19
  1502
        SDL20_SetWindowSize(VideoWindow20, width, height);
icculus@9
  1503
    }
icculus@9
  1504
icculus@9
  1505
    /* If we're in OpenGL mode, just resize the stub surface and we're done! */
icculus@19
  1506
    if (flags12 & SDL12_OPENGL) {
icculus@16
  1507
        VideoSurface->w = width;
icculus@16
  1508
        VideoSurface->h = height;
icculus@9
  1509
        return 0;
icculus@9
  1510
    }
icculus@9
  1511
icculus@19
  1512
    WindowSurface = SDL20_GetWindowSurface(VideoWindow20);
icculus@16
  1513
    if (!WindowSurface) {
icculus@9
  1514
        return -1;
icculus@9
  1515
    }
icculus@16
  1516
    if (VideoSurface->format != WindowSurface->format) {
icculus@9
  1517
        return -1;
icculus@9
  1518
    }
icculus@16
  1519
    VideoSurface->w = width;
icculus@16
  1520
    VideoSurface->h = height;
icculus@16
  1521
    VideoSurface->pixels = WindowSurface->pixels;
icculus@16
  1522
    VideoSurface->pitch = WindowSurface->pitch;
icculus@19
  1523
    SDL20_SetClipRect(VideoSurface, NULL);
icculus@9
  1524
icculus@16
  1525
    if (ShadowSurface) {
icculus@16
  1526
        ShadowSurface->w = width;
icculus@16
  1527
        ShadowSurface->h = height;
icculus@19
  1528
        ShadowSurface->pitch = SDL20_CalculatePitch(ShadowSurface);
icculus@16
  1529
        ShadowSurface->pixels =
icculus@19
  1530
            SDL20_realloc(ShadowSurface->pixels,
icculus@16
  1531
                        ShadowSurface->h * ShadowSurface->pitch);
icculus@19
  1532
        SDL20_SetClipRect(ShadowSurface, NULL);
icculus@19
  1533
        SDL20_InvalidateMap(ShadowSurface->map);
icculus@9
  1534
    } else {
icculus@16
  1535
        PublicSurface = VideoSurface;
icculus@9
  1536
    }
icculus@9
  1537
icculus@9
  1538
    ClearVideoSurface();
icculus@9
  1539
icculus@9
  1540
    return 0;
icculus@9
  1541
}
icculus@9
  1542
icculus@35
  1543
DECLSPEC SDL12_Surface * SDLCALL
icculus@19
  1544
SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags12)
icculus@9
  1545
{
icculus@9
  1546
    SDL_DisplayMode desktop_mode;
icculus@16
  1547
    int display = VideoDisplayIndex;
icculus@9
  1548
    int window_x = SDL_WINDOWPOS_UNDEFINED_DISPLAY(display);
icculus@9
  1549
    int window_y = SDL_WINDOWPOS_UNDEFINED_DISPLAY(display);
icculus@9
  1550
    int window_w;
icculus@9
  1551
    int window_h;
icculus@19
  1552
    Uint32 window_flags20;
icculus@19
  1553
    Uint32 surface_flags12;
icculus@19
  1554
icculus@19
  1555
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@19
  1556
        if (SDL_Init(SDL12_INIT_VIDEO | SDL12_INIT_NOPARACHUTE) < 0) {
icculus@9
  1557
            return NULL;
icculus@9
  1558
        }
icculus@9
  1559
    }
icculus@9
  1560
icculus@19
  1561
    SDL20_GetDesktopDisplayMode(display, &desktop_mode);
icculus@9
  1562
icculus@9
  1563
    if (width == 0) {
icculus@9
  1564
        width = desktop_mode.w;
icculus@9
  1565
    }
icculus@9
  1566
    if (height == 0) {
icculus@9
  1567
        height = desktop_mode.h;
icculus@9
  1568
    }
icculus@9
  1569
    if (bpp == 0) {
icculus@9
  1570
        bpp = SDL_BITSPERPIXEL(desktop_mode.format);
icculus@9
  1571
    }
icculus@9
  1572
icculus@9
  1573
    /* See if we can simply resize the existing window and surface */
icculus@19
  1574
    if (ResizeVideoMode(width, height, bpp, flags12) == 0) {
icculus@16
  1575
        return PublicSurface;
icculus@9
  1576
    }
icculus@9
  1577
icculus@9
  1578
    /* Destroy existing window */
icculus@16
  1579
    PublicSurface = NULL;
icculus@16
  1580
    if (ShadowSurface) {
icculus@16
  1581
        ShadowSurface->flags &= ~SDL_DONTFREE;
icculus@19
  1582
        SDL20_FreeSurface(ShadowSurface);
icculus@16
  1583
        ShadowSurface = NULL;
icculus@9
  1584
    }
icculus@16
  1585
    if (VideoSurface) {
icculus@16
  1586
        VideoSurface->flags &= ~SDL_DONTFREE;
icculus@19
  1587
        SDL20_FreeSurface(VideoSurface);
icculus@16
  1588
        VideoSurface = NULL;
icculus@9
  1589
    }
icculus@16
  1590
    if (VideoContext) {
icculus@9
  1591
        /* SDL_GL_MakeCurrent(0, NULL); *//* Doesn't do anything */
icculus@19
  1592
        SDL20_GL_DeleteContext(VideoContext);
icculus@16
  1593
        VideoContext = NULL;
icculus@9
  1594
    }
icculus@19
  1595
    if (VideoWindow20) {
icculus@19
  1596
        SDL20_GetWindowPosition(VideoWindow20, &window_x, &window_y);
icculus@19
  1597
        SDL20_DestroyWindow(VideoWindow20);
icculus@9
  1598
    }
icculus@9
  1599
icculus@19
  1600
    /* Create a new window */
icculus@19
  1601
    window_flags20 = SDL_WINDOW_SHOWN;
icculus@19
  1602
    if (flags12 & SDL12_FULLSCREEN) {
icculus@19
  1603
        window_flags20 |= SDL_WINDOW_FULLSCREEN;
icculus@9
  1604
    }
icculus@19
  1605
    if (flags12 & SDL12_OPENGL) {
icculus@19
  1606
        window_flags20 |= SDL_WINDOW_OPENGL;
icculus@9
  1607
    }
icculus@19
  1608
    if (flags12 & SDL12_RESIZABLE) {
icculus@19
  1609
        window_flags20 |= SDL_WINDOW_RESIZABLE;
icculus@9
  1610
    }
icculus@19
  1611
    if (flags12 & SDL12_NOFRAME) {
icculus@19
  1612
        window_flags20 |= SDL_WINDOW_BORDERLESS;
icculus@9
  1613
    }
icculus@9
  1614
    GetEnvironmentWindowPosition(width, height, &window_x, &window_y);
icculus@19
  1615
    VideoWindow20 =
icculus@19
  1616
        SDL20_CreateWindow(WindowTitle, window_x, window_y, width, height,
icculus@19
  1617
                         window_flags20);
icculus@19
  1618
    if (!VideoWindow20) {
icculus@9
  1619
        return NULL;
icculus@9
  1620
    }
icculus@19
  1621
    SDL20_SetWindowIcon(VideoWindow20, VideoIcon);
icculus@19
  1622
icculus@19
  1623
    SetupScreenSaver(flags12);
icculus@19
  1624
icculus@34
  1625
    window_flags20 = SDL20_GetWindowFlags(VideoWindow20);
icculus@19
  1626
    surface_flags12 = 0;
icculus@19
  1627
    if (window_flags20 & SDL_WINDOW_FULLSCREEN) {
icculus@19
  1628
        surface_flags12 |= SDL_FULLSCREEN;
icculus@9
  1629
    }
icculus@19
  1630
    if ((window_flags & SDL_WINDOW_OPENGL) && (flags12 & SDL_OPENGL)) {
icculus@19
  1631
        surface_flags12 |= SDL_OPENGL;
icculus@9
  1632
    }
icculus@9
  1633
    if (window_flags & SDL_WINDOW_RESIZABLE) {
icculus@19
  1634
        surface_flags12 |= SDL_RESIZABLE;
icculus@9
  1635
    }
icculus@9
  1636
    if (window_flags & SDL_WINDOW_BORDERLESS) {
icculus@19
  1637
        surface_flags12 |= SDL_NOFRAME;
icculus@9
  1638
    }
icculus@9
  1639
icculus@19
  1640
    VideoFlags = flags12;
icculus@9
  1641
icculus@9
  1642
    /* If we're in OpenGL mode, just create a stub surface and we're done! */
icculus@19
  1643
    if (flags12 & SDL_OPENGL) {
icculus@31
  1644
icculus@19
  1645
        VideoContext = SDL_GL_CreateContext(VideoWindow20);
icculus@16
  1646
        if (!VideoContext) {
icculus@9
  1647
            return NULL;
icculus@9
  1648
        }
icculus@19
  1649
        if (SDL_GL_MakeCurrent(VideoWindow20, VideoContext) < 0) {
icculus@9
  1650
            return NULL;
icculus@9
  1651
        }
icculus@30
  1652
icculus@31
  1653
        SDL20_GL_SetSwapInterval(SwapInterval);  /* don't care if this fails. */
icculus@30
  1654
icculus@16
  1655
        VideoSurface =
icculus@9
  1656
            SDL_CreateRGBSurfaceFrom(NULL, width, height, bpp, 0, 0, 0, 0, 0);
icculus@16
  1657
        if (!VideoSurface) {
icculus@9
  1658
            return NULL;
icculus@9
  1659
        }
icculus@19
  1660
        VideoSurface->flags |= surface_flags12;
icculus@16
  1661
        PublicSurface = VideoSurface;
icculus@16
  1662
        return PublicSurface;
icculus@9
  1663
    }
icculus@9
  1664
icculus@9
  1665
    /* Create the screen surface */
icculus@19
  1666
    WindowSurface = SDL_GetWindowSurface(VideoWindow20);
icculus@16
  1667
    if (!WindowSurface) {
icculus@9
  1668
        return NULL;
icculus@9
  1669
    }
icculus@9
  1670
icculus@9
  1671
    /* Center the public surface in the window surface */
icculus@19
  1672
    SDL_GetWindowSize(VideoWindow20, &window_w, &window_h);
icculus@16
  1673
    VideoViewport.x = (window_w - width)/2;
icculus@16
  1674
    VideoViewport.y = (window_h - height)/2;
icculus@16
  1675
    VideoViewport.w = width;
icculus@16
  1676
    VideoViewport.h = height;
icculus@9
  1677
icculus@16
  1678
    VideoSurface = SDL_CreateRGBSurfaceFrom(NULL, 0, 0, 32, 0, 0, 0, 0, 0);
icculus@19
  1679
    VideoSurface->flags |= surface_flags12;
icculus@19
  1680
    VideoSurface->flags |= SDL12_DONTFREE;
icculus@16
  1681
    SDL_FreeFormat(VideoSurface->format);
icculus@16
  1682
    VideoSurface->format = WindowSurface->format;
icculus@16
  1683
    VideoSurface->format->refcount++;
icculus@16
  1684
    VideoSurface->w = width;
icculus@16
  1685
    VideoSurface->h = height;
icculus@16
  1686
    VideoSurface->pitch = WindowSurface->pitch;
icculus@16
  1687
    VideoSurface->pixels = (void *)((Uint8 *)WindowSurface->pixels +
icculus@16
  1688
        VideoViewport.y * VideoSurface->pitch +
icculus@16
  1689
        VideoViewport.x  * VideoSurface->format->BytesPerPixel);
icculus@16
  1690
    SDL_SetClipRect(VideoSurface, NULL);
icculus@9
  1691
icculus@9
  1692
    /* Create a shadow surface if necessary */
icculus@16
  1693
    if ((bpp != VideoSurface->format->BitsPerPixel)
icculus@19
  1694
        && !(flags12 & SDL12_ANYFORMAT)) {
icculus@16
  1695
        ShadowSurface =
icculus@9
  1696
            SDL_CreateRGBSurface(0, width, height, bpp, 0, 0, 0, 0);
icculus@16
  1697
        if (!ShadowSurface) {
icculus@9
  1698
            return NULL;
icculus@9
  1699
        }
icculus@19
  1700
        ShadowSurface->flags |= surface_flags12;
icculus@19
  1701
        ShadowSurface->flags |= SDL12_DONTFREE;
icculus@9
  1702
icculus@16
  1703
        /* 8-bit ShadowSurface surfaces report that they have exclusive palette */
icculus@16
  1704
        if (ShadowSurface->format->palette) {
icculus@19
  1705
            ShadowSurface->flags |= SDL12_HWPALETTE;
icculus@16
  1706
            SDL_DitherColors(ShadowSurface->format->palette->colors,
icculus@16
  1707
                             ShadowSurface->format->BitsPerPixel);
icculus@9
  1708
        }
icculus@16
  1709
        SDL_FillRect(ShadowSurface, NULL,
icculus@16
  1710
            SDL_MapRGB(ShadowSurface->format, 0, 0, 0));
icculus@9
  1711
    }
icculus@16
  1712
    PublicSurface =
icculus@16
  1713
        (ShadowSurface ? ShadowSurface : VideoSurface);
icculus@9
  1714
icculus@9
  1715
    ClearVideoSurface();
icculus@9
  1716
icculus@9
  1717
    /* We're finally done! */
icculus@16
  1718
    return PublicSurface;
icculus@9
  1719
}
icculus@9
  1720
icculus@35
  1721
DECLSPEC SDL12_Surface * SDLCALL
icculus@9
  1722
SDL_GetVideoSurface(void)
icculus@9
  1723
{
icculus@16
  1724
    return PublicSurface;
icculus@9
  1725
}
icculus@9
  1726
icculus@35
  1727
DECLSPEC int SDLCALL
icculus@35
  1728
SDL_SetAlpha(SDL12_Surface * surface, Uint32 flag, Uint8 value)
icculus@9
  1729
{
icculus@9
  1730
    if (flag & SDL_SRCALPHA) {
icculus@9
  1731
        /* According to the docs, value is ignored for alpha surfaces */
icculus@9
  1732
        if (surface->format->Amask) {
icculus@9
  1733
            value = 0xFF;
icculus@9
  1734
        }
icculus@9
  1735
        SDL_SetSurfaceAlphaMod(surface, value);
icculus@9
  1736
        SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_BLEND);
icculus@9
  1737
    } else {
icculus@9
  1738
        SDL_SetSurfaceAlphaMod(surface, 0xFF);
icculus@9
  1739
        SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_NONE);
icculus@9
  1740
    }
icculus@9
  1741
    SDL_SetSurfaceRLE(surface, (flag & SDL_RLEACCEL));
icculus@9
  1742
icculus@9
  1743
    return 0;
icculus@9
  1744
}
icculus@9
  1745
icculus@35
  1746
DECLSPEC SDL12_Surface * SDLCALL
icculus@19
  1747
SDL_DisplayFormat(SDL12_Surface *surface12)
icculus@9
  1748
{
icculus@19
  1749
    SDL12_PixelFormat *format;
icculus@9
  1750
icculus@16
  1751
    if (!PublicSurface) {
icculus@19
  1752
        SDL20_SetError("No video mode has been set");
icculus@9
  1753
        return NULL;
icculus@9
  1754
    }
icculus@16
  1755
    format = PublicSurface->format;
icculus@9
  1756
icculus@9
  1757
    /* Set the flags appropriate for copying to display surface */
icculus@19
  1758
    return SDL_ConvertSurface(surface, format, SDL12_RLEACCEL);
icculus@9
  1759
}
icculus@9
  1760
icculus@35
  1761
DECLSPEC SDL12_Surface * SDLCALL
icculus@19
  1762
SDL_DisplayFormatAlpha(SDL12_Surface *surface)
icculus@9
  1763
{
icculus@9
  1764
    SDL_PixelFormat *vf;
icculus@9
  1765
    SDL_PixelFormat *format;
icculus@9
  1766
    SDL_Surface *converted;
icculus@9
  1767
    /* default to ARGB8888 */
icculus@9
  1768
    Uint32 amask = 0xff000000;
icculus@9
  1769
    Uint32 rmask = 0x00ff0000;
icculus@9
  1770
    Uint32 gmask = 0x0000ff00;
icculus@9
  1771
    Uint32 bmask = 0x000000ff;
icculus@9
  1772
icculus@16
  1773
    if (!PublicSurface) {
icculus@34
  1774
        SDL20_SetError("No video mode has been set");
icculus@9
  1775
        return NULL;
icculus@9
  1776
    }
icculus@16
  1777
    vf = PublicSurface->format;
icculus@9
  1778
icculus@9
  1779
    switch (vf->BytesPerPixel) {
icculus@9
  1780
    case 2:
icculus@9
  1781
        /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}.
icculus@9
  1782
           For anything else (like ARGB4444) it doesn't matter
icculus@9
  1783
           since we have no special code for it anyway */
icculus@9
  1784
        if ((vf->Rmask == 0x1f) &&
icculus@9
  1785
            (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) {
icculus@9
  1786
            rmask = 0xff;
icculus@9
  1787
            bmask = 0xff0000;
icculus@9
  1788
        }
icculus@9
  1789
        break;
icculus@9
  1790
icculus@9
  1791
    case 3:
icculus@9
  1792
    case 4:
icculus@9
  1793
        /* Keep the video format, as long as the high 8 bits are
icculus@9
  1794
           unused or alpha */
icculus@9
  1795
        if ((vf->Rmask == 0xff) && (vf->Bmask == 0xff0000)) {
icculus@9
  1796
            rmask = 0xff;
icculus@9
  1797
            bmask = 0xff0000;
icculus@9
  1798
        }
icculus@9
  1799
        break;
icculus@9
  1800
icculus@9
  1801
    default:
icculus@9
  1802
        /* We have no other optimised formats right now. When/if a new
icculus@9
  1803
           optimised alpha format is written, add the converter here */
icculus@9
  1804
        break;
icculus@9
  1805
    }
icculus@9
  1806
    format = SDL_AllocFormat(SDL_MasksToPixelFormatEnum(32, rmask,
icculus@9
  1807
                                                            gmask,
icculus@9
  1808
                                                            bmask,
icculus@9
  1809
                                                            amask));
icculus@9
  1810
    if (!format) {
icculus@9
  1811
        return NULL;
icculus@9
  1812
    }
icculus@9
  1813
    converted = SDL_ConvertSurface(surface, format, SDL_RLEACCEL);
icculus@9
  1814
    SDL_FreeFormat(format);
icculus@9
  1815
    return converted;
icculus@9
  1816
}
icculus@9
  1817
icculus@35
  1818
DECLSPEC void SDLCALL
icculus@9
  1819
SDL_UpdateRects(SDL_Surface * screen, int numrects, SDL_Rect * rects)
icculus@9
  1820
{
icculus@9
  1821
    int i;
icculus@9
  1822
icculus@16
  1823
    if (screen == ShadowSurface) {
icculus@9
  1824
        for (i = 0; i < numrects; ++i) {
icculus@16
  1825
            SDL_BlitSurface(ShadowSurface, &rects[i], VideoSurface,
icculus@9
  1826
                            &rects[i]);
icculus@9
  1827
        }
icculus@9
  1828
icculus@9
  1829
        /* Fall through to video surface update */
icculus@16
  1830
        screen = VideoSurface;
icculus@9
  1831
    }
icculus@16
  1832
    if (screen == VideoSurface) {
icculus@16
  1833
        if (VideoViewport.x || VideoViewport.y) {
icculus@9
  1834
            SDL_Rect *stackrects = SDL_stack_alloc(SDL_Rect, numrects);
icculus@9
  1835
            SDL_Rect *stackrect;
icculus@9
  1836
            const SDL_Rect *rect;
icculus@9
  1837
            
icculus@9
  1838
            /* Offset all the rectangles before updating */
icculus@9
  1839
            for (i = 0; i < numrects; ++i) {
icculus@9
  1840
                rect = &rects[i];
icculus@9
  1841
                stackrect = &stackrects[i];
icculus@16
  1842
                stackrect->x = VideoViewport.x + rect->x;
icculus@16
  1843
                stackrect->y = VideoViewport.y + rect->y;
icculus@9
  1844
                stackrect->w = rect->w;
icculus@9
  1845
                stackrect->h = rect->h;
icculus@9
  1846
            }
icculus@19
  1847
            SDL_UpdateWindowSurfaceRects(VideoWindow20, stackrects, numrects);
icculus@9
  1848
            SDL_stack_free(stackrects);
icculus@9
  1849
        } else {
icculus@19
  1850
            SDL_UpdateWindowSurfaceRects(VideoWindow20, rects, numrects);
icculus@9
  1851
        }
icculus@9
  1852
    }
icculus@9
  1853
}
icculus@34
  1854
#endif
icculus@9
  1855
icculus@35
  1856
DECLSPEC void SDLCALL
icculus@35
  1857
SDL_UpdateRect(SDL12_Surface *screen12, Sint32 x, Sint32 y, Uint32 w, Uint32 h)
icculus@31
  1858
{
icculus@35
  1859
    if (screen12) {
icculus@31
  1860
        SDL_Rect rect;
icculus@31
  1861
        rect.x = (int) x;
icculus@31
  1862
        rect.y = (int) y;
icculus@35
  1863
        rect.w = (int) (w ? w : screen12->w);
icculus@35
  1864
        rect.h = (int) (h ? h : screen12->h);
icculus@35
  1865
        SDL_UpdateRects(screen12, 1, &rect);
icculus@31
  1866
    }
icculus@31
  1867
}
icculus@31
  1868
icculus@35
  1869
DECLSPEC int SDLCALL
icculus@35
  1870
SDL_Flip(SDL12_Surface *screen12)
icculus@31
  1871
{
icculus@35
  1872
    SDL_UpdateRect(screen12, 0, 0, 0, 0);
icculus@31
  1873
    return 0;
icculus@31
  1874
}
icculus@31
  1875
icculus@35
  1876
DECLSPEC void SDLCALL
icculus@9
  1877
SDL_WM_SetCaption(const char *title, const char *icon)
icculus@9
  1878
{
icculus@16
  1879
    if (WindowTitle) {
icculus@31
  1880
        SDL20_free(WindowTitle);
icculus@9
  1881
    }
icculus@16
  1882
    if (WindowIconTitle) {
icculus@31
  1883
        SDL20_free(WindowIconTitle);
icculus@9
  1884
    }
icculus@16
  1885
    WindowTitle = title ? SDL_strdup(title) : NULL;
icculus@16
  1886
    WindowIconTitle = icon ? SDL_strdup(icon) : NULL;
icculus@34
  1887
    SDL20_SetWindowTitle(VideoWindow20, WindowTitle);
icculus@9
  1888
}
icculus@9
  1889
icculus@35
  1890
DECLSPEC void SDLCALL
icculus@9
  1891
SDL_WM_GetCaption(const char **title, const char **icon)
icculus@9
  1892
{
icculus@9
  1893
    if (title) {
icculus@16
  1894
        *title = WindowTitle;
icculus@9
  1895
    }
icculus@9
  1896
    if (icon) {
icculus@16
  1897
        *icon = WindowIconTitle;
icculus@9
  1898
    }
icculus@9
  1899
}
icculus@9
  1900
icculus@34
  1901
#if SANITY_CHECK_THIS_CODE
icculus@35
  1902
DECLSPEC void SDLCALL
icculus@34
  1903
SDL_WM_SetIcon(SDL_Surface *icon, Uint8 *mask)
icculus@9
  1904
{
icculus@9
  1905
    // !!! FIXME: free previous icon?
icculus@16
  1906
    VideoIcon = icon;
icculus@16
  1907
    ++VideoIcon->refcount;
icculus@9
  1908
}
icculus@34
  1909
#endif
icculus@9
  1910
icculus@35
  1911
DECLSPEC int SDLCALL
icculus@9
  1912
SDL_WM_IconifyWindow(void)
icculus@9
  1913
{
icculus@34
  1914
    SDL20_MinimizeWindow(VideoWindow20);
icculus@9
  1915
    return 0;
icculus@9
  1916
}
icculus@9
  1917
icculus@34
  1918
#if SANITY_CHECK_THIS_CODE
icculus@35
  1919
DECLSPEC int SDLCALL
icculus@34
  1920
SDL_WM_ToggleFullScreen(SDL_Surface *surface)
icculus@9
  1921
{
icculus@9
  1922
    int length;
icculus@9
  1923
    void *pixels;
icculus@9
  1924
    Uint8 *src, *dst;
icculus@9
  1925
    int row;
icculus@9
  1926
    int window_w;
icculus@9
  1927
    int window_h;
icculus@9
  1928
icculus@16
  1929
    if (!PublicSurface) {
icculus@34
  1930
        SDL20_SetError("SDL_SetVideoMode() hasn't been called");
icculus@9
  1931
        return 0;
icculus@9
  1932
    }
icculus@9
  1933
icculus@9
  1934
    /* Copy the old bits out */
icculus@16
  1935
    length = PublicSurface->w * PublicSurface->format->BytesPerPixel;
icculus@31
  1936
    pixels = SDL20_malloc(PublicSurface->h * length);
icculus@16
  1937
    if (pixels && PublicSurface->pixels) {
icculus@16
  1938
        src = (Uint8*)PublicSurface->pixels;
icculus@9
  1939
        dst = (Uint8*)pixels;
icculus@16
  1940
        for (row = 0; row < PublicSurface->h; ++row) {
icculus@9
  1941
            SDL_memcpy(dst, src, length);
icculus@16
  1942
            src += PublicSurface->pitch;
icculus@9
  1943
            dst += length;
icculus@9
  1944
        }
icculus@9
  1945
    }
icculus@9
  1946
icculus@9
  1947
    /* Do the physical mode switch */
icculus@34
  1948
    if (SDL20_GetWindowFlags(VideoWindow20) & SDL_WINDOW_FULLSCREEN) {
icculus@34
  1949
        if (SDL20_SetWindowFullscreen(VideoWindow20, 0) < 0) {
icculus@9
  1950
            return 0;
icculus@9
  1951
        }
icculus@16
  1952
        PublicSurface->flags &= ~SDL_FULLSCREEN;
icculus@9
  1953
    } else {
icculus@34
  1954
        if (SDL20_SetWindowFullscreen(VideoWindow20, 1) < 0) {
icculus@9
  1955
            return 0;
icculus@9
  1956
        }
icculus@16
  1957
        PublicSurface->flags |= SDL_FULLSCREEN;
icculus@9
  1958
    }
icculus@9
  1959
icculus@9
  1960
    /* Recreate the screen surface */
icculus@34
  1961
    WindowSurface = SDL20_GetWindowSurface(VideoWindow20);
icculus@16
  1962
    if (!WindowSurface) {
icculus@9
  1963
        /* We're totally hosed... */
icculus@9
  1964
        return 0;
icculus@9
  1965
    }
icculus@9
  1966
icculus@9
  1967
    /* Center the public surface in the window surface */
icculus@19
  1968
    SDL_GetWindowSize(VideoWindow20, &window_w, &window_h);
icculus@16
  1969
    VideoViewport.x = (window_w - VideoSurface->w)/2;
icculus@16
  1970
    VideoViewport.y = (window_h - VideoSurface->h)/2;
icculus@16
  1971
    VideoViewport.w = VideoSurface->w;
icculus@16
  1972
    VideoViewport.h = VideoSurface->h;
icculus@9
  1973
icculus@9
  1974
    /* Do some shuffling behind the application's back if format changes */
icculus@16
  1975
    if (VideoSurface->format->format != WindowSurface->format->format) {
icculus@16
  1976
        if (ShadowSurface) {
icculus@16
  1977
            if (ShadowSurface->format->format == WindowSurface->format->format) {
icculus@9
  1978
                /* Whee!  We don't need a shadow surface anymore! */
icculus@16
  1979
                VideoSurface->flags &= ~SDL_DONTFREE;
icculus@16
  1980
                SDL_FreeSurface(VideoSurface);
icculus@31
  1981
                SDL20_free(ShadowSurface->pixels);
icculus@16
  1982
                VideoSurface = ShadowSurface;
icculus@16
  1983
                VideoSurface->flags |= SDL_PREALLOC;
icculus@16
  1984
                ShadowSurface = NULL;
icculus@9
  1985
            } else {
icculus@9
  1986
                /* No problem, just change the video surface format */
icculus@16
  1987
                SDL_FreeFormat(VideoSurface->format);
icculus@16
  1988
                VideoSurface->format = WindowSurface->format;
icculus@16
  1989
                VideoSurface->format->refcount++;
icculus@16
  1990
                SDL_InvalidateMap(ShadowSurface->map);
icculus@9
  1991
            }
icculus@9
  1992
        } else {
icculus@9
  1993
            /* We can make the video surface the shadow surface */
icculus@16
  1994
            ShadowSurface = VideoSurface;
icculus@16
  1995
            ShadowSurface->pitch = SDL_CalculatePitch(ShadowSurface);
icculus@31
  1996
            ShadowSurface->pixels = SDL20_malloc(ShadowSurface->h * ShadowSurface->pitch);
icculus@16
  1997
            if (!ShadowSurface->pixels) {
icculus@9
  1998
                /* Uh oh, we're hosed */
icculus@16
  1999
                ShadowSurface = NULL;
icculus@9
  2000
                return 0;
icculus@9
  2001
            }
icculus@16
  2002
            ShadowSurface->flags &= ~SDL_PREALLOC;
icculus@9
  2003
icculus@16
  2004
            VideoSurface = SDL_CreateRGBSurfaceFrom(NULL, 0, 0, 32, 0, 0, 0, 0, 0);
icculus@16
  2005
            VideoSurface->flags = ShadowSurface->flags;
icculus@16
  2006
            VideoSurface->flags |= SDL_PREALLOC;
icculus@16
  2007
            SDL_FreeFormat(VideoSurface->format);
icculus@16
  2008
            VideoSurface->format = WindowSurface->format;
icculus@16
  2009
            VideoSurface->format->refcount++;
icculus@16
  2010
            VideoSurface->w = ShadowSurface->w;
icculus@16
  2011
            VideoSurface->h = ShadowSurface->h;
icculus@9
  2012
        }
icculus@9
  2013
    }
icculus@9
  2014
icculus@9
  2015
    /* Update the video surface */
icculus@16
  2016
    VideoSurface->pitch = WindowSurface->pitch;
icculus@16
  2017
    VideoSurface->pixels = (void *)((Uint8 *)WindowSurface->pixels +
icculus@16
  2018
        VideoViewport.y * VideoSurface->pitch +
icculus@16
  2019
        VideoViewport.x  * VideoSurface->format->BytesPerPixel);
icculus@16
  2020
    SDL_SetClipRect(VideoSurface, NULL);
icculus@9
  2021
icculus@9
  2022
    /* Copy the old bits back */
icculus@9
  2023
    if (pixels) {
icculus@9
  2024
        src = (Uint8*)pixels;
icculus@16
  2025
        dst = (Uint8*)PublicSurface->pixels;
icculus@16
  2026
        for (row = 0; row < PublicSurface->h; ++row) {
icculus@9
  2027
            SDL_memcpy(dst, src, length);
icculus@9
  2028
            src += length;
icculus@16
  2029
            dst += PublicSurface->pitch;
icculus@9
  2030
        }
icculus@16
  2031
        SDL_Flip(PublicSurface);
icculus@31
  2032
        SDL20_free(pixels);
icculus@9
  2033
    }
icculus@9
  2034
icculus@9
  2035
    /* We're done! */
icculus@9
  2036
    return 1;
icculus@9
  2037
}
icculus@34
  2038
#endif
icculus@9
  2039
icculus@31
  2040
typedef enum
icculus@9
  2041
{
icculus@31
  2042
    SDL12_GRAB_QUERY = -1,
icculus@31
  2043
    SDL12_GRAB_OFF = 0,
icculus@31
  2044
    SDL12_GRAB_ON = 1
icculus@31
  2045
} SDL12_GrabMode;
icculus@31
  2046
icculus@35
  2047
DECLSPEC SDL12_GrabMode SDLCALL
icculus@31
  2048
SDL_WM_GrabInput(SDL12_GrabMode mode)
icculus@31
  2049
{
icculus@31
  2050
    if (mode != SDL12_GRAB_QUERY) {
icculus@34
  2051
        SDL20_SetWindowGrab(VideoWindow20, (mode == SDL12_GRAB_ON));
icculus@9
  2052
    }
icculus@34
  2053
    return SDL20_GetWindowGrab(VideoWindow20) ? SDL12_GRAB_ON : SDL12_GRAB_OFF;
icculus@9
  2054
}
icculus@9
  2055
icculus@35
  2056
DECLSPEC void SDLCALL
icculus@9
  2057
SDL_WarpMouse(Uint16 x, Uint16 y)
icculus@9
  2058
{
icculus@34
  2059
    SDL20_WarpMouseInWindow(VideoWindow20, x, y);
icculus@9
  2060
}
icculus@9
  2061
icculus@35
  2062
DECLSPEC Uint8 SDLCALL
icculus@9
  2063
SDL_GetAppState(void)
icculus@9
  2064
{
icculus@34
  2065
    Uint8 state12 = 0;
icculus@34
  2066
    Uint32 flags20 = 0;
icculus@34
  2067
icculus@34
  2068
    flags20 = SDL20_GetWindowFlags(VideoWindow20);
icculus@34
  2069
    if ((flags20 & SDL_WINDOW_SHOWN) && !(flags20 & SDL_WINDOW_MINIMIZED)) {
icculus@34
  2070
        state12 |= SDL12_APPACTIVE;
icculus@9
  2071
    }
icculus@34
  2072
    if (flags20 & SDL_WINDOW_INPUT_FOCUS) {
icculus@34
  2073
        state12 |= SDL12_APPINPUTFOCUS;
icculus@9
  2074
    }
icculus@34
  2075
    if (flags20 & SDL_WINDOW_MOUSE_FOCUS) {
icculus@34
  2076
        state12 |= SDL12_APPMOUSEFOCUS;
icculus@9
  2077
    }
icculus@34
  2078
    return state12;
icculus@9
  2079
}
icculus@9
  2080
icculus@34
  2081
#if SANITY_CHECK_THIS_CODE
icculus@35
  2082
DECLSPEC int SDLCALL
icculus@35
  2083
SDL_SetPalette(SDL12_Surface *surface12, int flags, const SDL_Color *colors,
icculus@9
  2084
               int firstcolor, int ncolors)
icculus@9
  2085
{
icculus@35
  2086
    return SDL_SetColors(surface12, colors, firstcolor, ncolors);
icculus@9
  2087
}
icculus@9
  2088
icculus@35
  2089
DECLSPEC int SDLCALL
icculus@35
  2090
SDL_SetColors(SDL12_Surface *surface12, const SDL_Color * colors, int firstcolor,
icculus@9
  2091
              int ncolors)
icculus@9
  2092
{
icculus@35
  2093
    if (SDL20_SetPaletteColors
icculus@9
  2094
        (surface->format->palette, colors, firstcolor, ncolors) == 0) {
icculus@9
  2095
        return 1;
icculus@9
  2096
    } else {
icculus@9
  2097
        return 0;
icculus@9
  2098
    }
icculus@9
  2099
}
icculus@9
  2100
icculus@35
  2101
DECLSPEC int SDLCALL
icculus@9
  2102
SDL_GetWMInfo(SDL_SysWMinfo * info)
icculus@9
  2103
{
icculus@19
  2104
    return SDL_GetWindowWMInfo(VideoWindow20, info);
icculus@9
  2105
}
icculus@9
  2106
icculus@9
  2107
#if 0
icculus@9
  2108
void
icculus@9
  2109
SDL_MoveCursor(int x, int y)
icculus@9
  2110
{
icculus@9
  2111
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2112
icculus@9
  2113
    /* Erase and update the current mouse position */
icculus@9
  2114
    if (SHOULD_DRAWCURSOR(SDL_cursorstate)) {
icculus@9
  2115
        /* Erase and redraw mouse cursor in new position */
icculus@9
  2116
        SDL_LockCursor();
icculus@16
  2117
        SDL_EraseCursor(VideoSurface);
icculus@9
  2118
        SDL_cursor->area.x = (x - SDL_cursor->hot_x);
icculus@9
  2119
        SDL_cursor->area.y = (y - SDL_cursor->hot_y);
icculus@16
  2120
        SDL_DrawCursor(VideoSurface);
icculus@9
  2121
        SDL_UnlockCursor();
icculus@9
  2122
    } else if (_this->MoveWMCursor) {
icculus@9
  2123
        _this->MoveWMCursor(_this, x, y);
icculus@9
  2124
    }
icculus@9
  2125
}
icculus@9
  2126
icculus@9
  2127
/* Keep track of the current cursor colors */
icculus@9
  2128
static int palette_changed = 1;
icculus@9
  2129
static Uint8 pixels8[2];
icculus@9
  2130
icculus@9
  2131
void
icculus@9
  2132
SDL_CursorPaletteChanged(void)
icculus@9
  2133
{
icculus@9
  2134
    palette_changed = 1;
icculus@9
  2135
}
icculus@9
  2136
icculus@9
  2137
void
icculus@9
  2138
SDL_MouseRect(SDL_Rect * area)
icculus@9
  2139
{
icculus@9
  2140
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2141
    int clip_diff;
icculus@9
  2142
icculus@9
  2143
    *area = SDL_cursor->area;
icculus@9
  2144
    if (area->x < 0) {
icculus@9
  2145
        area->w += area->x;
icculus@9
  2146
        area->x = 0;
icculus@9
  2147
    }
icculus@9
  2148
    if (area->y < 0) {
icculus@9
  2149
        area->h += area->y;
icculus@9
  2150
        area->y = 0;
icculus@9
  2151
    }
icculus@16
  2152
    clip_diff = (area->x + area->w) - VideoSurface->w;
icculus@9
  2153
    if (clip_diff > 0) {
icculus@9
  2154
        area->w = area->w < clip_diff ? 0 : area->w - clip_diff;
icculus@9
  2155
    }
icculus@16
  2156
    clip_diff = (area->y + area->h) - VideoSurface->h;
icculus@9
  2157
    if (clip_diff > 0) {
icculus@9
  2158
        area->h = area->h < clip_diff ? 0 : area->h - clip_diff;
icculus@9
  2159
    }
icculus@9
  2160
}
icculus@9
  2161
icculus@9
  2162
static void
icculus@9
  2163
SDL_DrawCursorFast(SDL_Surface * screen, SDL_Rect * area)
icculus@9
  2164
{
icculus@9
  2165
    const Uint32 pixels[2] = { 0xFFFFFFFF, 0x00000000 };
icculus@9
  2166
    int i, w, h;
icculus@9
  2167
    Uint8 *data, datab;
icculus@9
  2168
    Uint8 *mask, maskb;
icculus@9
  2169
icculus@9
  2170
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
icculus@9
  2171
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
icculus@9
  2172
    switch (screen->format->BytesPerPixel) {
icculus@9
  2173
icculus@9
  2174
    case 1:
icculus@9
  2175
        {
icculus@9
  2176
            Uint8 *dst;
icculus@9
  2177
            int dstskip;
icculus@9
  2178
icculus@9
  2179
            if (palette_changed) {
icculus@9
  2180
                pixels8[0] =
icculus@9
  2181
                    (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
icculus@9
  2182
                pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
icculus@9
  2183
                palette_changed = 0;
icculus@9
  2184
            }
icculus@9
  2185
            dst = (Uint8 *) screen->pixels +
icculus@9
  2186
                (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  2187
                SDL_cursor->area.x;
icculus@9
  2188
            dstskip = screen->pitch - area->w;
icculus@9
  2189
icculus@9
  2190
            for (h = area->h; h; h--) {
icculus@9
  2191
                for (w = area->w / 8; w; w--) {
icculus@9
  2192
                    maskb = *mask++;
icculus@9
  2193
                    datab = *data++;
icculus@9
  2194
                    for (i = 0; i < 8; ++i) {
icculus@9
  2195
                        if (maskb & 0x80) {
icculus@9
  2196
                            *dst = pixels8[datab >> 7];
icculus@9
  2197
                        }
icculus@9
  2198
                        maskb <<= 1;
icculus@9
  2199
                        datab <<= 1;
icculus@9
  2200
                        dst++;
icculus@9
  2201
                    }
icculus@9
  2202
                }
icculus@9
  2203
                dst += dstskip;
icculus@9
  2204
            }
icculus@9
  2205
        }
icculus@9
  2206
        break;
icculus@9
  2207
icculus@9
  2208
    case 2:
icculus@9
  2209
        {
icculus@9
  2210
            Uint16 *dst;
icculus@9
  2211
            int dstskip;
icculus@9
  2212
icculus@9
  2213
            dst = (Uint16 *) screen->pixels +
icculus@9
  2214
                (SDL_cursor->area.y + area->y) * screen->pitch / 2 +
icculus@9
  2215
                SDL_cursor->area.x;
icculus@9
  2216
            dstskip = (screen->pitch / 2) - area->w;
icculus@9
  2217
icculus@9
  2218
            for (h = area->h; h; h--) {
icculus@9
  2219
                for (w = area->w / 8; w; w--) {
icculus@9
  2220
                    maskb = *mask++;
icculus@9
  2221
                    datab = *data++;
icculus@9
  2222
                    for (i = 0; i < 8; ++i) {
icculus@9
  2223
                        if (maskb & 0x80) {
icculus@9
  2224
                            *dst = (Uint16) pixels[datab >> 7];
icculus@9
  2225
                        }
icculus@9
  2226
                        maskb <<= 1;
icculus@9
  2227
                        datab <<= 1;
icculus@9
  2228
                        dst++;
icculus@9
  2229
                    }
icculus@9
  2230
                }
icculus@9
  2231
                dst += dstskip;
icculus@9
  2232
            }
icculus@9
  2233
        }
icculus@9
  2234
        break;
icculus@9
  2235
icculus@9
  2236
    case 3:
icculus@9
  2237
        {
icculus@9
  2238
            Uint8 *dst;
icculus@9
  2239
            int dstskip;
icculus@9
  2240
icculus@9
  2241
            dst = (Uint8 *) screen->pixels +
icculus@9
  2242
                (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  2243
                SDL_cursor->area.x * 3;
icculus@9
  2244
            dstskip = screen->pitch - area->w * 3;
icculus@9
  2245
icculus@9
  2246
            for (h = area->h; h; h--) {
icculus@9
  2247
                for (w = area->w / 8; w; w--) {
icculus@9
  2248
                    maskb = *mask++;
icculus@9
  2249
                    datab = *data++;
icculus@9
  2250
                    for (i = 0; i < 8; ++i) {
icculus@9
  2251
                        if (maskb & 0x80) {
icculus@9
  2252
                            SDL_memset(dst, pixels[datab >> 7], 3);
icculus@9
  2253
                        }
icculus@9
  2254
                        maskb <<= 1;
icculus@9
  2255
                        datab <<= 1;
icculus@9
  2256
                        dst += 3;
icculus@9
  2257
                    }
icculus@9
  2258
                }
icculus@9
  2259
                dst += dstskip;
icculus@9
  2260
            }
icculus@9
  2261
        }
icculus@9
  2262
        break;
icculus@9
  2263
icculus@9
  2264
    case 4:
icculus@9
  2265
        {
icculus@9
  2266
            Uint32 *dst;
icculus@9
  2267
            int dstskip;
icculus@9
  2268
icculus@9
  2269
            dst = (Uint32 *) screen->pixels +
icculus@9
  2270
                (SDL_cursor->area.y + area->y) * screen->pitch / 4 +
icculus@9
  2271
                SDL_cursor->area.x;
icculus@9
  2272
            dstskip = (screen->pitch / 4) - area->w;
icculus@9
  2273
icculus@9
  2274
            for (h = area->h; h; h--) {
icculus@9
  2275
                for (w = area->w / 8; w; w--) {
icculus@9
  2276
                    maskb = *mask++;
icculus@9
  2277
                    datab = *data++;
icculus@9
  2278
                    for (i = 0; i < 8; ++i) {
icculus@9
  2279
                        if (maskb & 0x80) {
icculus@9
  2280
                            *dst = pixels[datab >> 7];
icculus@9
  2281
                        }
icculus@9
  2282
                        maskb <<= 1;
icculus@9
  2283
                        datab <<= 1;
icculus@9
  2284
                        dst++;
icculus@9
  2285
                    }
icculus@9
  2286
                }
icculus@9
  2287
                dst += dstskip;
icculus@9
  2288
            }
icculus@9
  2289
        }
icculus@9
  2290
        break;
icculus@9
  2291
    }
icculus@9
  2292
}
icculus@9
  2293
icculus@9
  2294
static void
icculus@9
  2295
SDL_DrawCursorSlow(SDL_Surface * screen, SDL_Rect * area)
icculus@9
  2296
{
icculus@9
  2297
    const Uint32 pixels[2] = { 0xFFFFFF, 0x000000 };
icculus@9
  2298
    int h;
icculus@9
  2299
    int x, minx, maxx;
icculus@9
  2300
    Uint8 *data, datab = 0;
icculus@9
  2301
    Uint8 *mask, maskb = 0;
icculus@9
  2302
    Uint8 *dst;
icculus@9
  2303
    int dstbpp, dstskip;
icculus@9
  2304
icculus@9
  2305
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
icculus@9
  2306
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
icculus@9
  2307
    dstbpp = screen->format->BytesPerPixel;
icculus@9
  2308
    dst = (Uint8 *) screen->pixels +
icculus@9
  2309
        (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  2310
        SDL_cursor->area.x * dstbpp;
icculus@9
  2311
    dstskip = screen->pitch - SDL_cursor->area.w * dstbpp;
icculus@9
  2312
icculus@9
  2313
    minx = area->x;
icculus@9
  2314
    maxx = area->x + area->w;
icculus@9
  2315
    if (screen->format->BytesPerPixel == 1) {
icculus@9
  2316
        if (palette_changed) {
icculus@9
  2317
            pixels8[0] = (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
icculus@9
  2318
            pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
icculus@9
  2319
            palette_changed = 0;
icculus@9
  2320
        }
icculus@9
  2321
        for (h = area->h; h; h--) {
icculus@9
  2322
            for (x = 0; x < SDL_cursor->area.w; ++x) {
icculus@9
  2323
                if ((x % 8) == 0) {
icculus@9
  2324
                    maskb = *mask++;
icculus@9
  2325
                    datab = *data++;
icculus@9
  2326
                }
icculus@9
  2327
                if ((x >= minx) && (x < maxx)) {
icculus@9
  2328
                    if (maskb & 0x80) {
icculus@9
  2329
                        SDL_memset(dst, pixels8[datab >> 7], dstbpp);
icculus@9
  2330
                    }
icculus@9
  2331
                }
icculus@9
  2332
                maskb <<= 1;
icculus@9
  2333
                datab <<= 1;
icculus@9
  2334
                dst += dstbpp;
icculus@9
  2335
            }
icculus@9
  2336
            dst += dstskip;
icculus@9
  2337
        }
icculus@9
  2338
    } else {
icculus@9
  2339
        for (h = area->h; h; h--) {
icculus@9
  2340
            for (x = 0; x < SDL_cursor->area.w; ++x) {
icculus@9
  2341
                if ((x % 8) == 0) {
icculus@9
  2342
                    maskb = *mask++;
icculus@9
  2343
                    datab = *data++;
icculus@9
  2344
                }
icculus@9
  2345
                if ((x >= minx) && (x < maxx)) {
icculus@9
  2346
                    if (maskb & 0x80) {
icculus@9
  2347
                        SDL_memset(dst, pixels[datab >> 7], dstbpp);
icculus@9
  2348
                    }
icculus@9
  2349
                }
icculus@9
  2350
                maskb <<= 1;
icculus@9
  2351
                datab <<= 1;
icculus@9
  2352
                dst += dstbpp;
icculus@9
  2353
            }
icculus@9
  2354
            dst += dstskip;
icculus@9
  2355
        }
icculus@9
  2356
    }
icculus@9
  2357
}
icculus@9
  2358
icculus@9
  2359
/* This handles the ugly work of converting the saved cursor background from
icculus@9
  2360
   the pixel format of the shadow surface to that of the video surface.
icculus@9
  2361
   This is only necessary when blitting from a shadow surface of a different
icculus@9
  2362
   pixel format than the video surface, and using a software rendered cursor.
icculus@9
  2363
*/
icculus@9
  2364
static void
icculus@9
  2365
SDL_ConvertCursorSave(SDL_Surface * screen, int w, int h)
icculus@9
  2366
{
icculus@9
  2367
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2368
    SDL_BlitInfo info;
icculus@9
  2369
    SDL_loblit RunBlit;
icculus@9
  2370
icculus@9
  2371
    /* Make sure we can steal the blit mapping */
icculus@16
  2372
    if (screen->map->dst != VideoSurface) {
icculus@9
  2373
        return;
icculus@9
  2374
    }
icculus@9
  2375
icculus@9
  2376
    /* Set up the blit information */
icculus@9
  2377
    info.s_pixels = SDL_cursor->save[1];
icculus@9
  2378
    info.s_width = w;
icculus@9
  2379
    info.s_height = h;
icculus@9
  2380
    info.s_skip = 0;
icculus@9
  2381
    info.d_pixels = SDL_cursor->save[0];
icculus@9
  2382
    info.d_width = w;
icculus@9
  2383
    info.d_height = h;
icculus@9
  2384
    info.d_skip = 0;
icculus@9
  2385
    info.aux_data = screen->map->sw_data->aux_data;
icculus@9
  2386
    info.src = screen->format;
icculus@9
  2387
    info.table = screen->map->table;
icculus@16
  2388
    info.dst = VideoSurface->format;
icculus@9
  2389
    RunBlit = screen->map->sw_data->blit;
icculus@9
  2390
icculus@9
  2391
    /* Run the actual software blit */
icculus@9
  2392
    RunBlit(&info);
icculus@9
  2393
}
icculus@9
  2394
icculus@9
  2395
void
icculus@9
  2396
SDL_DrawCursorNoLock(SDL_Surface * screen)
icculus@9
  2397
{
icculus@9
  2398
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2399
    SDL_Rect area;
icculus@9
  2400
icculus@9
  2401
    /* Get the mouse rectangle, clipped to the screen */
icculus@9
  2402
    SDL_MouseRect(&area);
icculus@9
  2403
    if ((area.w == 0) || (area.h == 0)) {
icculus@9
  2404
        return;
icculus@9
  2405
    }
icculus@9
  2406
icculus@9
  2407
    /* Copy mouse background */
icculus@9
  2408
    {
icculus@9
  2409
        int w, h, screenbpp;
icculus@9
  2410
        Uint8 *src, *dst;
icculus@9
  2411
icculus@9
  2412
        /* Set up the copy pointers */
icculus@9
  2413
        screenbpp = screen->format->BytesPerPixel;
icculus@16
  2414
        if ((screen == VideoSurface) ||
icculus@16
  2415
            FORMAT_EQUAL(screen->format, VideoSurface->format)) {
icculus@9
  2416
            dst = SDL_cursor->save[0];
icculus@9
  2417
        } else {
icculus@9
  2418
            dst = SDL_cursor->save[1];
icculus@9
  2419
        }
icculus@9
  2420
        src = (Uint8 *) screen->pixels + area.y * screen->pitch +
icculus@9
  2421
            area.x * screenbpp;
icculus@9
  2422
icculus@9
  2423
        /* Perform the copy */
icculus@9
  2424
        w = area.w * screenbpp;
icculus@9
  2425
        h = area.h;
icculus@9
  2426
        while (h--) {
icculus@9
  2427
            SDL_memcpy(dst, src, w);
icculus@9
  2428
            dst += w;
icculus@9
  2429
            src += screen->pitch;
icculus@9
  2430
        }
icculus@9
  2431
    }
icculus@9
  2432
icculus@9
  2433
    /* Draw the mouse cursor */
icculus@9
  2434
    area.x -= SDL_cursor->area.x;
icculus@9
  2435
    area.y -= SDL_cursor->area.y;
icculus@9
  2436
    if ((area.x == 0) && (area.w == SDL_cursor->area.w)) {
icculus@9
  2437
        SDL_DrawCursorFast(screen, &area);
icculus@9
  2438
    } else {
icculus@9
  2439
        SDL_DrawCursorSlow(screen, &area);
icculus@9
  2440
    }
icculus@9
  2441
}
icculus@9
  2442
icculus@9
  2443
void
icculus@9
  2444
SDL_DrawCursor(SDL_Surface * screen)
icculus@9
  2445
{
icculus@9
  2446
    /* Lock the screen if necessary */
icculus@9
  2447
    if (screen == NULL) {
icculus@9
  2448
        return;
icculus@9
  2449
    }
icculus@9
  2450
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2451
        if (SDL_LockSurface(screen) < 0) {
icculus@9
  2452
            return;
icculus@9
  2453
        }
icculus@9
  2454
    }
icculus@9
  2455
icculus@9
  2456
    SDL_DrawCursorNoLock(screen);
icculus@9
  2457
icculus@9
  2458
    /* Unlock the screen and update if necessary */
icculus@9
  2459
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2460
        SDL_UnlockSurface(screen);
icculus@9
  2461
    }
icculus@9
  2462
    if (screen->flags & SDL_SCREEN_SURFACE) {
icculus@9
  2463
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2464
        SDL_Window *window;
icculus@9
  2465
        SDL_Rect area;
icculus@9
  2466
icculus@9
  2467
        window = SDL_GetWindowFromSurface(screen);
icculus@9
  2468
        if (!window) {
icculus@9
  2469
            return;
icculus@9
  2470
        }
icculus@9
  2471
icculus@9
  2472
        SDL_MouseRect(&area);
icculus@9
  2473
icculus@9
  2474
        if (_this->UpdateWindowSurface) {
icculus@9
  2475
            _this->UpdateWindowSurface(_this, window, 1, &area);
icculus@9
  2476
        }
icculus@9
  2477
    }
icculus@9
  2478
}
icculus@9
  2479
icculus@9
  2480
void
icculus@9
  2481
SDL_EraseCursorNoLock(SDL_Surface * screen)
icculus@9
  2482
{
icculus@9
  2483
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2484
    SDL_Window *window;
icculus@9
  2485
    SDL_Rect area;
icculus@9
  2486
icculus@9
  2487
    /* Get the window associated with the surface */
icculus@9
  2488
    window = SDL_GetWindowFromSurface(screen);
icculus@9
  2489
    if (!window || !window->surface) {
icculus@9
  2490
        return;
icculus@9
  2491
    }
icculus@9
  2492
icculus@9
  2493
    /* Get the mouse rectangle, clipped to the screen */
icculus@9
  2494
    SDL_MouseRect(&area);
icculus@9
  2495
    if ((area.w == 0) || (area.h == 0)) {
icculus@9
  2496
        return;
icculus@9
  2497
    }
icculus@9
  2498
icculus@9
  2499
    /* Copy mouse background */
icculus@9
  2500
    {
icculus@9
  2501
        int w, h, screenbpp;
icculus@9
  2502
        Uint8 *src, *dst;
icculus@9
  2503
icculus@9
  2504
        /* Set up the copy pointers */
icculus@9
  2505
        screenbpp = screen->format->BytesPerPixel;
icculus@9
  2506
        if ((screen->flags & SDL_SCREEN_SURFACE) ||
icculus@9
  2507
            FORMAT_EQUAL(screen->format, window->surface->format)) {
icculus@9
  2508
            src = SDL_cursor->save[0];
icculus@9
  2509
        } else {
icculus@9
  2510
            src = SDL_cursor->save[1];
icculus@9
  2511
        }
icculus@9
  2512
        dst = (Uint8 *) screen->pixels + area.y * screen->pitch +
icculus@9
  2513
            area.x * screenbpp;
icculus@9
  2514
icculus@9
  2515
        /* Perform the copy */
icculus@9
  2516
        w = area.w * screenbpp;
icculus@9
  2517
        h = area.h;
icculus@9
  2518
        while (h--) {
icculus@9
  2519
            SDL_memcpy(dst, src, w);
icculus@9
  2520
            src += w;
icculus@9
  2521
            dst += screen->pitch;
icculus@9
  2522
        }
icculus@9
  2523
icculus@9
  2524
        /* Perform pixel conversion on cursor background */
icculus@9
  2525
        if (src > SDL_cursor->save[1]) {
icculus@9
  2526
            SDL_ConvertCursorSave(screen, area.w, area.h);
icculus@9
  2527
        }
icculus@9
  2528
    }
icculus@9
  2529
}
icculus@9
  2530
icculus@9
  2531
void
icculus@9
  2532
SDL_EraseCursor(SDL_Surface * screen)
icculus@9
  2533
{
icculus@9
  2534
    /* Lock the screen if necessary */
icculus@9
  2535
    if (screen == NULL) {
icculus@9
  2536
        return;
icculus@9
  2537
    }
icculus@9
  2538
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2539
        if (SDL_LockSurface(screen) < 0) {
icculus@9
  2540
            return;
icculus@9
  2541
        }
icculus@9
  2542
    }
icculus@9
  2543
icculus@9
  2544
    SDL_EraseCursorNoLock(screen);
icculus@9
  2545
icculus@9
  2546
    /* Unlock the screen and update if necessary */
icculus@9
  2547
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2548
        SDL_UnlockSurface(screen);
icculus@9
  2549
    }
icculus@9
  2550
    if (screen->flags & SDL_SCREEN_SURFACE) {
icculus@9
  2551
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2552
        SDL_Window *window;
icculus@9
  2553
        SDL_Rect area;
icculus@9
  2554
icculus@9
  2555
        window = SDL_GetWindowFromSurface(screen);
icculus@9
  2556
        if (!window) {
icculus@9
  2557
            return;
icculus@9
  2558
        }
icculus@9
  2559
icculus@9
  2560
        SDL_MouseRect(&area);
icculus@9
  2561
icculus@9
  2562
        if (_this->UpdateWindowSurface) {
icculus@9
  2563
            _this->UpdateWindowSurface(_this, window, 1, &area);
icculus@9
  2564
        }
icculus@9
  2565
    }
icculus@9
  2566
}
icculus@9
  2567
icculus@9
  2568
/* Reset the cursor on video mode change
icculus@9
  2569
   FIXME:  Keep track of all cursors, and reset them all.
icculus@9
  2570
 */
icculus@9
  2571
void
icculus@9
  2572
SDL_ResetCursor(void)
icculus@9
  2573
{
icculus@9
  2574
    int savelen;
icculus@9
  2575
icculus@9
  2576
    if (SDL_cursor) {
icculus@9
  2577
        savelen = SDL_cursor->area.w * 4 * SDL_cursor->area.h;
icculus@9
  2578
        SDL_cursor->area.x = 0;
icculus@9
  2579
        SDL_cursor->area.y = 0;
icculus@9
  2580
        SDL_memset(SDL_cursor->save[0], 0, savelen);
icculus@9
  2581
    }
icculus@9
  2582
}
icculus@9
  2583
#endif
icculus@9
  2584
icculus@9
  2585
struct private_yuvhwdata
icculus@9
  2586
{
icculus@9
  2587
    SDL_SW_YUVTexture *texture;
icculus@9
  2588
    SDL_Surface *display;
icculus@9
  2589
    Uint32 display_format;
icculus@9
  2590
};
icculus@9
  2591
icculus@35
  2592
DECLSPEC SDL_Overlay * SDLCALL
icculus@35
  2593
SDL_CreateYUVOverlay(int w, int h, Uint32 format, SDL12_Surface *display)
icculus@9
  2594
{
icculus@9
  2595
    SDL_Overlay *overlay;
icculus@9
  2596
    Uint32 texture_format;
icculus@9
  2597
    SDL_SW_YUVTexture *texture;
icculus@9
  2598
icculus@9
  2599
    if ((display->flags & SDL_OPENGL) == SDL_OPENGL) {
icculus@34
  2600
        SDL20_SetError("YUV overlays are not supported in OpenGL mode");
icculus@9
  2601
        return NULL;
icculus@9
  2602
    }
icculus@9
  2603
icculus@16
  2604
    if (display != PublicSurface) {
icculus@34
  2605
        SDL20_SetError("YUV display is only supported on the screen surface");
icculus@9
  2606
        return NULL;
icculus@9
  2607
    }
icculus@9
  2608
icculus@9
  2609
    switch (format) {
icculus@9
  2610
    case SDL_YV12_OVERLAY:
icculus@9
  2611
        texture_format = SDL_PIXELFORMAT_YV12;
icculus@9
  2612
        break;
icculus@9
  2613
    case SDL_IYUV_OVERLAY:
icculus@9
  2614
        texture_format = SDL_PIXELFORMAT_IYUV;
icculus@9
  2615
        break;
icculus@9
  2616
    case SDL_YUY2_OVERLAY:
icculus@9
  2617
        texture_format = SDL_PIXELFORMAT_YUY2;
icculus@9
  2618
        break;
icculus@9
  2619
    case SDL_UYVY_OVERLAY:
icculus@9
  2620
        texture_format = SDL_PIXELFORMAT_UYVY;
icculus@9
  2621
        break;
icculus@9
  2622
    case SDL_YVYU_OVERLAY:
icculus@9
  2623
        texture_format = SDL_PIXELFORMAT_YVYU;
icculus@9
  2624
        break;
icculus@9
  2625
    default:
icculus@34
  2626
        SDL20_SetError("Unknown YUV format");
icculus@9
  2627
        return NULL;
icculus@9
  2628
    }
icculus@9
  2629
icculus@31
  2630
    overlay = (SDL_Overlay *) SDL20_malloc(sizeof(*overlay));
icculus@9
  2631
    if (!overlay) {
icculus@31
  2632
        SDL20_OutOfMemory();
icculus@9
  2633
        return NULL;
icculus@9
  2634
    }
icculus@34
  2635
    SDL20_zerop(overlay);
icculus@9
  2636
icculus@9
  2637
    overlay->hwdata =
icculus@31
  2638
        (struct private_yuvhwdata *) SDL20_malloc(sizeof(*overlay->hwdata));
icculus@9
  2639
    if (!overlay->hwdata) {
icculus@31
  2640
        SDL20_free(overlay);
icculus@31
  2641
        SDL20_OutOfMemory();
icculus@9
  2642
        return NULL;
icculus@9
  2643
    }
icculus@9
  2644
icculus@9
  2645
    texture = SDL_SW_CreateYUVTexture(texture_format, w, h);
icculus@9
  2646
    if (!texture) {
icculus@31
  2647
        SDL20_free(overlay->hwdata);
icculus@31
  2648
        SDL20_free(overlay);
icculus@9
  2649
        return NULL;
icculus@9
  2650
    }
icculus@9
  2651
    overlay->hwdata->texture = texture;
icculus@9
  2652
    overlay->hwdata->display = NULL;
icculus@9
  2653
    overlay->hwdata->display_format = SDL_PIXELFORMAT_UNKNOWN;
icculus@9
  2654
icculus@9
  2655
    overlay->format = format;
icculus@9
  2656
    overlay->w = w;
icculus@9
  2657
    overlay->h = h;
icculus@9
  2658
    if (format == SDL_YV12_OVERLAY || format == SDL_IYUV_OVERLAY) {
icculus@9
  2659
        overlay->planes = 3;
icculus@9
  2660
    } else {
icculus@9
  2661
        overlay->planes = 1;
icculus@9
  2662
    }
icculus@9
  2663
    overlay->pitches = texture->pitches;
icculus@9
  2664
    overlay->pixels = texture->planes;
icculus@9
  2665
icculus@9
  2666
    return overlay;
icculus@9
  2667
}
icculus@9
  2668
icculus@35
  2669
DECLSPEC int SDLCALL
icculus@9
  2670
SDL_LockYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2671
{
icculus@9
  2672
    SDL_Rect rect;
icculus@9
  2673
    void *pixels;
icculus@9
  2674
    int pitch;
icculus@9
  2675
icculus@9
  2676
    if (!overlay) {
icculus@34
  2677
        return SDL20_SetError("Passed a NULL overlay");
icculus@9
  2678
    }
icculus@9
  2679
icculus@9
  2680
    rect.x = 0;
icculus@9
  2681
    rect.y = 0;
icculus@9
  2682
    rect.w = overlay->w;
icculus@9
  2683
    rect.h = overlay->h;
icculus@9
  2684
icculus@9
  2685
    if (SDL_SW_LockYUVTexture(overlay->hwdata->texture, &rect, &pixels, &pitch) < 0) {
icculus@9
  2686
        return -1;
icculus@9
  2687
    }
icculus@9
  2688
icculus@9
  2689
    overlay->pixels[0] = (Uint8 *) pixels;
icculus@9
  2690
    overlay->pitches[0] = pitch;
icculus@9
  2691
    switch (overlay->format) {
icculus@9
  2692
    case SDL_YV12_OVERLAY:
icculus@9
  2693
    case SDL_IYUV_OVERLAY:
icculus@9
  2694
        overlay->pitches[1] = pitch / 2;
icculus@9
  2695
        overlay->pitches[2] = pitch / 2;
icculus@9
  2696
        overlay->pixels[1] =
icculus@9
  2697
            overlay->pixels[0] + overlay->pitches[0] * overlay->h;
icculus@9
  2698
        overlay->pixels[2] =
icculus@9
  2699
            overlay->pixels[1] + overlay->pitches[1] * overlay->h / 2;
icculus@9
  2700
        break;
icculus@9
  2701
    case SDL_YUY2_OVERLAY:
icculus@9
  2702
    case SDL_UYVY_OVERLAY:
icculus@9
  2703
    case SDL_YVYU_OVERLAY:
icculus@9
  2704
        break;
icculus@9
  2705
    }
icculus@9
  2706
    return 0;
icculus@9
  2707
}
icculus@9
  2708
icculus@35
  2709
DECLSPEC void SDLCALL
icculus@9
  2710
SDL_UnlockYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2711
{
icculus@9
  2712
    if (!overlay) {
icculus@9
  2713
        return;
icculus@9
  2714
    }
icculus@9
  2715
icculus@9
  2716
    SDL_SW_UnlockYUVTexture(overlay->hwdata->texture);
icculus@9
  2717
}
icculus@9
  2718
icculus@35
  2719
DECLSPEC int SDLCALL
icculus@9
  2720
SDL_DisplayYUVOverlay(SDL_Overlay * overlay, SDL_Rect * dstrect)
icculus@9
  2721
{
icculus@9
  2722
    SDL_Surface *display;
icculus@9
  2723
    SDL_Rect src_rect;
icculus@9
  2724
    SDL_Rect dst_rect;
icculus@9
  2725
    void *pixels;
icculus@9
  2726
icculus@9
  2727
    if (!overlay || !dstrect) {
icculus@34
  2728
        return SDL20_SetError("Passed a NULL overlay or dstrect");
icculus@9
  2729
    }
icculus@9
  2730
icculus@9
  2731
    display = overlay->hwdata->display;
icculus@16
  2732
    if (display != VideoSurface) {
icculus@16
  2733
        overlay->hwdata->display = display = VideoSurface;
icculus@9
  2734
        overlay->hwdata->display_format = SDL_MasksToPixelFormatEnum(
icculus@9
  2735
                                                display->format->BitsPerPixel,
icculus@9
  2736
                                                display->format->Rmask,
icculus@9
  2737
                                                display->format->Gmask,
icculus@9
  2738