src/SDL12_compat.c
author Ryan C. Gordon <icculus@icculus.org>
Sun, 31 Mar 2013 22:19:24 -0400
changeset 18 221a624a97fb
parent 17 473158daa1de
child 19 bb548168a73b
permissions -rw-r--r--
A bunch of work on the event subsystem.

We pull from the 2.0 queue and then manage everything in our own queue.
icculus@9
     1
/*
icculus@9
     2
  Simple DirectMedia Layer
icculus@9
     3
  Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
icculus@9
     4
icculus@9
     5
  This software is provided 'as-is', without any express or implied
icculus@9
     6
  warranty.  In no event will the authors be held liable for any damages
icculus@9
     7
  arising from the use of this software.
icculus@9
     8
icculus@9
     9
  Permission is granted to anyone to use this software for any purpose,
icculus@9
    10
  including commercial applications, and to alter it and redistribute it
icculus@9
    11
  freely, subject to the following restrictions:
icculus@9
    12
icculus@9
    13
  1. The origin of this software must not be misrepresented; you must not
icculus@9
    14
     claim that you wrote the original software. If you use this software
icculus@9
    15
     in a product, an acknowledgment in the product documentation would be
icculus@9
    16
     appreciated but is not required.
icculus@9
    17
  2. Altered source versions must be plainly marked as such, and must not be
icculus@9
    18
     misrepresented as being the original software.
icculus@9
    19
  3. This notice may not be removed or altered from any source distribution.
icculus@9
    20
*/
icculus@9
    21
icculus@9
    22
/* This file contains functions for backwards compatibility with SDL 1.2 */
icculus@9
    23
icculus@9
    24
#include "SDL.h"
icculus@9
    25
icculus@9
    26
#if !SDL_VERSION_ATLEAST(2,0,0)
icculus@9
    27
#error You need to compile against SDL 2.0 headers.
icculus@9
    28
#endif
icculus@9
    29
icculus@9
    30
#include "SDL_syswm.h"
icculus@9
    31
icculus@11
    32
#include <stdarg.h>
icculus@11
    33
icculus@9
    34
//#include "video/SDL_sysvideo.h"
icculus@9
    35
//#include "video/SDL_pixels_c.h"
icculus@9
    36
//#include "render/SDL_yuv_sw_c.h"
icculus@9
    37
icculus@9
    38
// !!! IMPLEMENT_ME SDL_ConvertSurface
icculus@9
    39
// !!! IMPLEMENT_ME SDL_CreateCursor
icculus@9
    40
// !!! IMPLEMENT_ME SDL_CreateThread
icculus@9
    41
// !!! IMPLEMENT_ME SDL_EventState
icculus@9
    42
// !!! IMPLEMENT_ME SDL_FillRect
icculus@9
    43
// !!! IMPLEMENT_ME SDL_FreeCursor
icculus@9
    44
// !!! IMPLEMENT_ME SDL_GL_GetAttribute
icculus@9
    45
// !!! IMPLEMENT_ME SDL_GL_Lock
icculus@9
    46
// !!! IMPLEMENT_ME SDL_GL_SetAttribute
icculus@9
    47
// !!! IMPLEMENT_ME SDL_GL_Unlock
icculus@9
    48
// !!! IMPLEMENT_ME SDL_GL_UpdateRects
icculus@9
    49
// !!! IMPLEMENT_ME SDL_GetClipRect
icculus@9
    50
// !!! IMPLEMENT_ME SDL_GetCursor
icculus@9
    51
// !!! IMPLEMENT_ME SDL_GetKeyName
icculus@9
    52
// !!! IMPLEMENT_ME SDL_GetKeyState
icculus@9
    53
// !!! IMPLEMENT_ME SDL_GetModState
icculus@9
    54
// !!! IMPLEMENT_ME SDL_GetMouseState
icculus@9
    55
// !!! IMPLEMENT_ME SDL_GetRelativeMouseState
icculus@9
    56
// !!! IMPLEMENT_ME SDL_LockSurface
icculus@9
    57
// !!! IMPLEMENT_ME SDL_LowerBlit
icculus@9
    58
// !!! IMPLEMENT_ME SDL_SetClipRect
icculus@9
    59
// !!! IMPLEMENT_ME SDL_SetColorKey
icculus@9
    60
// !!! IMPLEMENT_ME SDL_SetCursor
icculus@9
    61
// !!! IMPLEMENT_ME SDL_SetModState
icculus@9
    62
// !!! IMPLEMENT_ME SDL_ShowCursor
icculus@9
    63
// !!! IMPLEMENT_ME SDL_SoftStretch
icculus@9
    64
// !!! IMPLEMENT_ME SDL_UnlockSurface
icculus@9
    65
// !!! IMPLEMENT_ME SDL_UpperBlit
icculus@9
    66
// !!! IMPLEMENT_ME SDL_WaitEvent
icculus@9
    67
// !!! IMPLEMENT_ME X11_KeyToUnicode
icculus@9
    68
icculus@9
    69
icculus@9
    70
#define SDL20_SYM(rc,fn,params,args,ret) \
icculus@9
    71
    typedef rc (*SDL20_##fn##_t) params; \
icculus@9
    72
    static SDL20_##fn##_t SDL20_##fn = NULL;
icculus@9
    73
#define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) \
icculus@9
    74
    SDL20_SYM(rc,fn,params,args,ret)
icculus@9
    75
#include "SDL20_syms.h"
icculus@9
    76
#undef SDL20_SYM_PASSTHROUGH
icculus@9
    77
#undef SDL20_SYM
icculus@9
    78
icculus@11
    79
typedef void (*SDL20_SetError_t)(const char *fmt, ...);
icculus@11
    80
static SDL20_SetError_t SDL20_SetError = NULL;
icculus@9
    81
icculus@9
    82
icculus@9
    83
icculus@9
    84
#define SDL12_INIT_TIMER       0x00000001
icculus@9
    85
#define SDL12_INIT_AUDIO       0x00000010
icculus@9
    86
#define SDL12_INIT_VIDEO       0x00000020
icculus@9
    87
#define SDL12_INIT_CDROM       0x00000100
icculus@9
    88
#define SDL12_INIT_JOYSTICK    0x00000200
icculus@9
    89
#define SDL12_INIT_NOPARACHUTE 0x00100000
icculus@9
    90
#define SDL12_INIT_EVENTTHREAD 0x01000000
icculus@9
    91
#define SDL12_INIT_EVERYTHING  0x0000FFFF
icculus@9
    92
icculus@15
    93
typedef struct SDL12_Palette
icculus@15
    94
{
icculus@15
    95
    int       ncolors;
icculus@15
    96
    SDL_Color *colors;
icculus@15
    97
} SDL12_Palette;
icculus@15
    98
icculus@15
    99
typedef struct SDL12_PixelFormat
icculus@15
   100
{
icculus@15
   101
    SDL12_Palette *palette;
icculus@15
   102
    Uint8 BitsPerPixel;
icculus@15
   103
    Uint8 BytesPerPixel;
icculus@15
   104
    Uint8 Rloss;
icculus@15
   105
    Uint8 Gloss;
icculus@15
   106
    Uint8 Bloss;
icculus@15
   107
    Uint8 Aloss;
icculus@15
   108
    Uint8 Rshift;
icculus@15
   109
    Uint8 Gshift;
icculus@15
   110
    Uint8 Bshift;
icculus@15
   111
    Uint8 Ashift;
icculus@15
   112
    Uint32 Rmask;
icculus@15
   113
    Uint32 Gmask;
icculus@15
   114
    Uint32 Bmask;
icculus@15
   115
    Uint32 Amask;
icculus@15
   116
    Uint32 colorkey;
icculus@15
   117
    Uint8 alpha;
icculus@15
   118
} SDL12_PixelFormat;
icculus@15
   119
icculus@18
   120
typedef struct SDL12_Surface
icculus@18
   121
{
icculus@18
   122
    Uint32 flags;
icculus@18
   123
    SDL12_PixelFormat *format;
icculus@18
   124
    int w;
icculus@18
   125
    int h;
icculus@18
   126
    Uint16 pitch;
icculus@18
   127
    void *pixels;
icculus@18
   128
    int offset;
icculus@18
   129
    void *hwdata;
icculus@18
   130
    SDL_Rect clip_rect;
icculus@18
   131
    Uint32 unused1;
icculus@18
   132
    Uint32 locked;
icculus@18
   133
    void *blitmap;
icculus@18
   134
    unsigned int format_version;
icculus@18
   135
    int refcount;
icculus@18
   136
} SDL12_Surface;
icculus@18
   137
icculus@9
   138
typedef struct
icculus@9
   139
{
icculus@15
   140
    Uint32 hw_available :1;
icculus@15
   141
    Uint32 wm_available :1;
icculus@15
   142
    Uint32 UnusedBits1  :6;
icculus@15
   143
    Uint32 UnusedBits2  :1;
icculus@15
   144
    Uint32 blit_hw      :1;
icculus@15
   145
    Uint32 blit_hw_CC   :1;
icculus@15
   146
    Uint32 blit_hw_A    :1;
icculus@15
   147
    Uint32 blit_sw      :1;
icculus@15
   148
    Uint32 blit_sw_CC   :1;
icculus@15
   149
    Uint32 blit_sw_A    :1;
icculus@15
   150
    Uint32 blit_fill    :1;
icculus@15
   151
    Uint32 UnusedBits3  :16;
icculus@15
   152
    Uint32 video_mem;
icculus@15
   153
    SDL_PixelFormat *vfmt;
icculus@15
   154
    int current_w;
icculus@15
   155
    int current_h;
icculus@9
   156
} SDL12_VideoInfo;
icculus@9
   157
icculus@9
   158
icculus@15
   159
#define SDL12_HWSURFACE 0x00000001
icculus@15
   160
#define SDL12_ASYNCBLIT 0x00000004
icculus@15
   161
#define SDL12_ANYFORMAT 0x10000000
icculus@15
   162
#define SDL12_HWPALETTE 0x20000000
icculus@15
   163
#define SDL12_DOUBLEBUF 0x40000000
icculus@15
   164
#define SDL12_FULLSCREEN 0x80000000
icculus@15
   165
#define SDL12_OPENGL 0x00000002
icculus@15
   166
#define SDL12_OPENGLBLIT 0x0000000A
icculus@15
   167
#define SDL12_RESIZABLE 0x00000010
icculus@15
   168
#define SDL12_NOFRAME 0x00000020
icculus@15
   169
#define SDL12_HWACCEL 0x00000100
icculus@15
   170
#define SDL12_SRCCOLORKEY 0x00001000
icculus@15
   171
#define SDL12_RLEACCELOK 0x00002000
icculus@15
   172
#define SDL12_RLEACCEL 0x00004000
icculus@15
   173
#define SDL12_SRCALPHA 0x00010000
icculus@15
   174
#define SDL12_PREALLOC 0x01000000
icculus@9
   175
icculus@18
   176
typedef int (SDLCALL *SDL12_EventFilter)(const SDL12_Event *event12);
icculus@18
   177
static int EventFilter20to12(void *data, SDL_Event *event20);
icculus@18
   178
icculus@18
   179
typedef enum
icculus@18
   180
{
icculus@18
   181
    SDL12_NOEVENT = 0,
icculus@18
   182
    SDL12_ACTIVEEVENT,
icculus@18
   183
    SDL12_KEYDOWN,
icculus@18
   184
    SDL12_KEYUP,
icculus@18
   185
    SDL12_MOUSEMOTION,
icculus@18
   186
    SDL12_MOUSEBUTTONDOWN,
icculus@18
   187
    SDL12_MOUSEBUTTONUP,
icculus@18
   188
    SDL12_JOYAXISMOTION,
icculus@18
   189
    SDL12_JOYBALLMOTION,
icculus@18
   190
    SDL12_JOYHATMOTION,
icculus@18
   191
    SDL12_JOYBUTTONDOWN,
icculus@18
   192
    SDL12_JOYBUTTONUP,
icculus@18
   193
    SDL12_QUIT,
icculus@18
   194
    SDL12_SYSWMEVENT,
icculus@18
   195
    SDL12_EVENT_RESERVEDA,
icculus@18
   196
    SDL12_EVENT_RESERVEDB,
icculus@18
   197
    SDL12_VIDEORESIZE,
icculus@18
   198
    SDL12_VIDEOEXPOSE,
icculus@18
   199
    SDL12_USEREVENT = 24,
icculus@18
   200
    SDL12_NUMEVENTS = 32
icculus@18
   201
} SDL12_EventType;
icculus@18
   202
icculus@18
   203
typedef struct
icculus@18
   204
{
icculus@18
   205
    Uint8 type;
icculus@18
   206
    Uint8 gain;
icculus@18
   207
    Uint8 state;
icculus@18
   208
} SDL12_ActiveEvent;
icculus@18
   209
icculus@18
   210
typedef struct
icculus@18
   211
{
icculus@18
   212
    Uint8 type;
icculus@18
   213
    Uint8 which;
icculus@18
   214
    Uint8 state;
icculus@18
   215
    SDL12_keysym keysym;
icculus@18
   216
} SDL12_KeyboardEvent;
icculus@18
   217
icculus@18
   218
typedef struct
icculus@18
   219
{
icculus@18
   220
    Uint8 type;
icculus@18
   221
    Uint8 which;
icculus@18
   222
    Uint8 state;
icculus@18
   223
    Uint16 x, y;
icculus@18
   224
    Sint16 xrel;
icculus@18
   225
    Sint16 yrel;
icculus@18
   226
} SDL12_MouseMotionEvent;
icculus@18
   227
icculus@18
   228
typedef struct
icculus@18
   229
{
icculus@18
   230
    Uint8 type;
icculus@18
   231
    Uint8 which;
icculus@18
   232
    Uint8 button;
icculus@18
   233
    Uint8 state;
icculus@18
   234
    Uint16 x, y;
icculus@18
   235
} SDL12_MouseButtonEvent;
icculus@18
   236
icculus@18
   237
typedef struct
icculus@18
   238
{
icculus@18
   239
    Uint8 type;
icculus@18
   240
    Uint8 which;
icculus@18
   241
    Uint8 axis;
icculus@18
   242
    Sint16 value;
icculus@18
   243
} SDL12_JoyAxisEvent;
icculus@18
   244
icculus@18
   245
typedef struct
icculus@18
   246
{
icculus@18
   247
    Uint8 type;
icculus@18
   248
    Uint8 which;
icculus@18
   249
    Uint8 ball;
icculus@18
   250
    Sint16 xrel;
icculus@18
   251
    Sint16 yrel;
icculus@18
   252
} SDL12_JoyBallEvent;
icculus@18
   253
icculus@18
   254
typedef struct
icculus@18
   255
{
icculus@18
   256
    Uint8 type;
icculus@18
   257
    Uint8 which;
icculus@18
   258
    Uint8 hat;
icculus@18
   259
    Uint8 value;
icculus@18
   260
} SDL12_JoyHatEvent;
icculus@18
   261
icculus@18
   262
typedef struct
icculus@18
   263
{
icculus@18
   264
    Uint8 type;
icculus@18
   265
    Uint8 which;
icculus@18
   266
    Uint8 button;
icculus@18
   267
    Uint8 state;
icculus@18
   268
} SDL12_JoyButtonEvent;
icculus@18
   269
icculus@18
   270
typedef struct
icculus@18
   271
{
icculus@18
   272
    Uint8 type;
icculus@18
   273
    int w;
icculus@18
   274
    int h;
icculus@18
   275
} SDL12_ResizeEvent;
icculus@18
   276
icculus@18
   277
typedef struct
icculus@18
   278
{
icculus@18
   279
    Uint8 type;
icculus@18
   280
} SDL12_ExposeEvent;
icculus@18
   281
icculus@18
   282
typedef struct
icculus@18
   283
{
icculus@18
   284
    Uint8 type;
icculus@18
   285
} SDL12_QuitEvent;
icculus@18
   286
icculus@18
   287
typedef struct
icculus@18
   288
{
icculus@18
   289
    Uint8 type;
icculus@18
   290
    int code;
icculus@18
   291
    void *data1;
icculus@18
   292
    void *data2;
icculus@18
   293
} SDL12_UserEvent;
icculus@18
   294
icculus@18
   295
typedef struct
icculus@18
   296
{
icculus@18
   297
    Uint8 type;
icculus@18
   298
    void *msg;
icculus@18
   299
} SDL12_SysWMEvent;
icculus@18
   300
icculus@18
   301
typedef union
icculus@18
   302
{
icculus@18
   303
    Uint8 type;
icculus@18
   304
    SDL12_ActiveEvent active;
icculus@18
   305
    SDL12_KeyboardEvent key;
icculus@18
   306
    SDL12_MouseMotionEvent motion;
icculus@18
   307
    SDL12_MouseButtonEvent button;
icculus@18
   308
    SDL12_JoyAxisEvent jaxis;
icculus@18
   309
    SDL12_JoyBallEvent jball;
icculus@18
   310
    SDL12_JoyHatEvent jhat;
icculus@18
   311
    SDL12_JoyButtonEvent jbutton;
icculus@18
   312
    SDL12_ResizeEvent resize;
icculus@18
   313
    SDL12_ExposeEvent expose;
icculus@18
   314
    SDL12_QuitEvent quit;
icculus@18
   315
    SDL12_UserEvent user;
icculus@18
   316
    SDL12_SysWMEvent syswm;
icculus@18
   317
} SDL12_Event;
icculus@9
   318
icculus@17
   319
static SDL12_VideoInfo VideoInfo;
icculus@15
   320
static SDL_Window *VideoWindow = NULL;
icculus@15
   321
static SDL_Surface *WindowSurface = NULL;
icculus@16
   322
static SDL_Surface *VideoSurface = NULL;
icculus@16
   323
static SDL_Surface *ShadowSurface = NULL;
icculus@16
   324
static SDL_Surface *PublicSurface = NULL;
icculus@16
   325
static SDL_GLContext *VideoContext = NULL;
icculus@16
   326
static Uint32 VideoFlags = 0;
icculus@16
   327
static SDL_Rect VideoViewport;
icculus@16
   328
static char *WindowTitle = NULL;
icculus@16
   329
static char *WindowIconTitle = NULL;
icculus@16
   330
static SDL_Surface *VideoIcon;
icculus@16
   331
static int EnabledUnicode = 0;
icculus@16
   332
static int VideoDisplayIndex = 0;
icculus@16
   333
static int CDRomInit = 0;
icculus@18
   334
static SDL12_EventFilter EventFilter12 = NULL;
icculus@18
   335
icculus@18
   336
icculus@18
   337
// !!! FIXME: need a mutex for the event queue.
icculus@18
   338
#define SDL12_MAXEVENTS 128
icculus@18
   339
static SDL12_Event EventQueue[SDL12_MAXEVENTS];
icculus@18
   340
static int EventQueueRead = 0;
icculus@18
   341
static int EventQueueWrite = 0;
icculus@9
   342
icculus@9
   343
/* Obviously we can't use SDL_LoadObject() to load SDL2.  :)  */
icculus@9
   344
#if defined(_WINDOWS)
icculus@9
   345
    #define SDL20_LIBNAME "SDL2.dll"
icculus@9
   346
    static HANDLE Loaded_SDL20 = NULL;
icculus@9
   347
    #define LoadSDL20Library() ((Loaded_SDL20 = LoadLibraryA(SDL20_LIBNAME)) != NULL)
icculus@9
   348
    #define LookupSDL20Sym(sym) GetProcAddress(Loaded_SDL20, sym)
icculus@9
   349
    #define CloseSDL20Library() { { if (Loaded_SDL20) { FreeLibrary(Loaded_SDL20); Loaded_SDL20 = NULL; } }
icculus@9
   350
#elif defined(unix)
icculus@9
   351
    #ifdef __APPLE__
icculus@9
   352
    #define SDL20_LIBNAME "libSDL2.dylib"
icculus@9
   353
    #else
icculus@9
   354
    #define SDL20_LIBNAME "libSDL2-2.0.so.0"
icculus@9
   355
    #endif
icculus@9
   356
    static void *Loaded_SDL20 = NULL;
icculus@9
   357
    #define LoadSDL20Library() ((Loaded_SDL20 = dlopen(SDL20_LIBNAME, RTLD_LOCAL)) != NULL)
icculus@9
   358
    #define LookupSDL20Sym(sym) dlsym(Loaded_SDL20, sym)
icculus@9
   359
    #define CloseSDL20Library() { if (Loaded_SDL20) { dlclose(Loaded_SDL20); Loaded_SDL20 = NULL; } }
icculus@9
   360
#else
icculus@9
   361
    #error Please define your platform.
icculus@9
   362
#endif
icculus@9
   363
icculus@9
   364
static void *
icculus@9
   365
LoadSDL20Symbol(const char *fn, int *okay)
icculus@9
   366
{
icculus@9
   367
    void *retval = NULL;
icculus@9
   368
    if (*okay)  /* only bother trying if we haven't previously failed. */
icculus@9
   369
    {
icculus@9
   370
        retval = LookupSDL20Sym(fn);
icculus@9
   371
        if (retval == NULL)
icculus@9
   372
            *okay = 0;
icculus@9
   373
    }
icculus@9
   374
    return retval;
icculus@9
   375
}
icculus@9
   376
icculus@9
   377
static void
icculus@9
   378
UnloadSDL20(void)
icculus@9
   379
{
icculus@9
   380
    #define SDL20_SYM(rc,fn,params,args,ret) SDL20_##fn = NULL;
icculus@9
   381
    #define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) SDL20_##fn = NULL;
icculus@9
   382
    #include "SDL20_syms.h"
icculus@9
   383
    #undef SDL20_SYM_PASSTHROUGH
icculus@9
   384
    #undef SDL20_SYM
icculus@11
   385
    SDL20_SetError = NULL;
icculus@9
   386
    CloseSDL20Library();
icculus@9
   387
}
icculus@9
   388
icculus@9
   389
static int
icculus@9
   390
LoadSDL20(void)
icculus@9
   391
{
icculus@9
   392
    int okay = 1;
icculus@9
   393
    if (!Loaded_SDL20)
icculus@9
   394
    {
icculus@9
   395
        okay = LoadSDL20Library();
icculus@9
   396
        #define SDL20_SYM(rc,fn,params,args,ret) SDL20_##fn = (SDL20_##fn##_t) LoadSDL20Symbol("SDL_" #fn, &okay);
icculus@9
   397
        #define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) SDL20_SYM(rc,fn,params,args,ret)
icculus@9
   398
        #include "SDL20_syms.h"
icculus@9
   399
        #undef SDL20_SYM_PASSTHROUGH
icculus@9
   400
        #undef SDL20_SYM
icculus@11
   401
        SDL20_SetError = (SDL20_SetError_t) LoadSDL20Symbol("SDL_SetError", &okay);
icculus@9
   402
        if (!okay)
icculus@9
   403
            UnloadSDL20();
icculus@9
   404
    }
icculus@9
   405
    return okay;
icculus@9
   406
}
icculus@9
   407
icculus@9
   408
icculus@9
   409
static int
icculus@9
   410
GetVideoDisplay()
icculus@9
   411
{
icculus@9
   412
    // !!! FIXME: cache this value during SDL_Init() so it doesn't change.
icculus@9
   413
    const char *variable = SDL_getenv("SDL_VIDEO_FULLSCREEN_DISPLAY");
icculus@9
   414
    if ( !variable ) {
icculus@9
   415
        variable = SDL_getenv("SDL_VIDEO_FULLSCREEN_HEAD");
icculus@9
   416
    }
icculus@9
   417
    if ( variable ) {
icculus@9
   418
        return SDL_atoi(variable);
icculus@9
   419
    } else {
icculus@9
   420
        return 0;
icculus@9
   421
    }
icculus@9
   422
}
icculus@9
   423
icculus@11
   424
static int
icculus@11
   425
DoSDLInit(const int justsubs, Uint32 sdl12flags)
icculus@9
   426
{
icculus@9
   427
    Uint32 sdl20flags = 0;
icculus@9
   428
    int rc;
icculus@9
   429
icculus@9
   430
    if (!LoadSDL20())
icculus@9
   431
        return -1;
icculus@9
   432
icculus@9
   433
    #define SETFLAG(x) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag)
icculus@9
   434
    SETFLAG(TIMER);
icculus@9
   435
    SETFLAG(AUDIO);
icculus@9
   436
    SETFLAG(VIDEO);
icculus@9
   437
    SETFLAG(JOYSTICK);
icculus@9
   438
    SETFLAG(NOPARACHUTE);
icculus@11
   439
    #undef SETFLAG
icculus@11
   440
icculus@11
   441
    // There's no CDROM in 2.0, but we'll just pretend it succeeded.
icculus@11
   442
    if (sdl12flags & SDL12_INIT_CDROM)
icculus@16
   443
        CDRomInit = 1;
icculus@11
   444
icculus@11
   445
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   446
icculus@11
   447
    rc = justsubs ? SDL20_InitSubSystem(sdl20flags) : SDL20_Init(sdl20flags);
icculus@11
   448
    if ((rc == 0) && (sdl20flags & SDL_INIT_VIDEO))
icculus@18
   449
    {
icculus@18
   450
        EventQueueRead = EventQueueWrite = 0;
icculus@18
   451
        SDL_zero(EventQueue);
icculus@18
   452
        SDL20_SetEventFilter(EventFilter20to12, NULL);
icculus@16
   453
        VideoDisplayIndex = GetVideoDisplay();
icculus@18
   454
    }
icculus@18
   455
icculus@11
   456
    return rc;
icculus@11
   457
}
icculus@11
   458
icculus@11
   459
int
icculus@11
   460
SDL_InitSubSystem(Uint32 sdl12flags)
icculus@11
   461
{
icculus@11
   462
    return DoSDLInit(1, sdl12flags);
icculus@11
   463
}
icculus@11
   464
icculus@11
   465
int
icculus@11
   466
SDL_Init(Uint32 sdl12flags)
icculus@11
   467
{
icculus@11
   468
    return DoSDLInit(0, sdl12flags);
icculus@11
   469
}
icculus@11
   470
icculus@11
   471
Uint32
icculus@11
   472
SDL_WasInit(Uint32 sdl12flags)
icculus@11
   473
{
icculus@11
   474
    // !!! FIXME: this is cut and pasted several places.
icculus@11
   475
    Uint32 sdl20flags = 0;
icculus@11
   476
    Uint32 extraflags = 0;
icculus@11
   477
icculus@11
   478
    #define SETFLAG(x) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag)
icculus@11
   479
    SETFLAG(TIMER);
icculus@11
   480
    SETFLAG(AUDIO);
icculus@11
   481
    SETFLAG(VIDEO);
icculus@11
   482
    SETFLAG(JOYSTICK);
icculus@11
   483
    SETFLAG(NOPARACHUTE);
icculus@11
   484
    #undef SETFLAG
icculus@11
   485
icculus@16
   486
    if ((sdl12flags & SDL12_INIT_CDROM) && (CDRomInit))
icculus@11
   487
        extraflags |= SDL12_INIT_CDROM;
icculus@11
   488
icculus@11
   489
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   490
icculus@11
   491
    // !!! FIXME: convert back to 1.2
icculus@11
   492
    return SDL20_WasInit(sdl20flags) | extraflags;
icculus@11
   493
}
icculus@11
   494
icculus@11
   495
void
icculus@11
   496
SDL_QuitSubSystem(Uint32 sdl12flags)
icculus@11
   497
{
icculus@11
   498
    Uint32 sdl20flags = 0;
icculus@11
   499
icculus@11
   500
    #define SETFLAG(x) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag)
icculus@11
   501
    SETFLAG(TIMER);
icculus@11
   502
    SETFLAG(AUDIO);
icculus@11
   503
    SETFLAG(VIDEO);
icculus@11
   504
    SETFLAG(JOYSTICK);
icculus@11
   505
    SETFLAG(NOPARACHUTE);
icculus@9
   506
    // There's no CDROM in 2.0, but we'll just pretend it succeeded.
icculus@9
   507
    #undef SETFLAG
icculus@9
   508
icculus@16
   509
    if (sdl12flags & SDL12_INIT_CDROM)
icculus@16
   510
        CDRomInit = 0;
icculus@16
   511
icculus@17
   512
    // !!! FIXME: reset a bunch of other global variables too.
icculus@17
   513
    if (sdl12flags & SDL12_INIT_VIDEO) {
icculus@18
   514
        EventFilter12 = NULL;
icculus@18
   515
        EventQueueRead = EventQueueWrite = 0;
icculus@18
   516
        SDL_zero(EventQueue);
icculus@17
   517
        SDL20_FreeFormat(VideoInfo.vfmt);
icculus@17
   518
        SDL_zero(VideoInfo);
icculus@17
   519
    }
icculus@17
   520
icculus@9
   521
    // !!! FIXME: do something about SDL12_INIT_EVENTTHREAD
icculus@11
   522
    SDL20_QuitSubSystem(sdl20flags);
icculus@9
   523
icculus@11
   524
    // !!! FIXME: UnloadSDL20() ?
icculus@9
   525
}
icculus@9
   526
icculus@9
   527
void
icculus@9
   528
SDL_Quit(void)
icculus@9
   529
{
icculus@17
   530
    // !!! FIXME: reset a bunch of other global variables too.
icculus@18
   531
    EventFilter12 = NULL;
icculus@18
   532
    EventQueueRead = EventQueueWrite = 0;
icculus@18
   533
    SDL_zero(EventQueue);
icculus@17
   534
    SDL20_FreeFormat(VideoInfo.vfmt);
icculus@17
   535
    SDL_zero(VideoInfo);
icculus@16
   536
    CDRomInit = 0;
icculus@9
   537
    SDL20_Quit();
icculus@9
   538
    UnloadSDL20();
icculus@9
   539
}
icculus@9
   540
icculus@11
   541
void
icculus@11
   542
SDL_SetError(const char *fmt, ...)
icculus@11
   543
{
icculus@12
   544
    char *str = NULL;
icculus@12
   545
    va_list ap;
icculus@12
   546
    va_start(ap, fmt);
icculus@12
   547
    vasprintf(&str, fmt, ap);
icculus@12
   548
    va_end(ap);
icculus@12
   549
    if (!str)
icculus@12
   550
        SDL20_OutOfMemory();
icculus@12
   551
    else
icculus@12
   552
    {
icculus@12
   553
        SDL20_SetError("%s", str);
icculus@12
   554
        free(str);
icculus@12
   555
    }
icculus@11
   556
}
icculus@9
   557
icculus@9
   558
char *
icculus@9
   559
SDL_GetError(void)
icculus@9
   560
{
icculus@9
   561
    if (!Loaded_SDL20)
icculus@9
   562
    {
icculus@9
   563
        static char noload_errstr[] = "Failed to load SDL 2.0 shared library";
icculus@9
   564
        return noload_errstr;
icculus@9
   565
    }
icculus@9
   566
    return SDL20_GetError();
icculus@9
   567
}
icculus@9
   568
icculus@9
   569
icculus@9
   570
static const char *
icculus@9
   571
GetDriverName(const char *name, char *namebuf, int maxlen)
icculus@9
   572
{
icculus@9
   573
    if (name) {
icculus@9
   574
        if (namebuf) {
icculus@9
   575
            SDL20_strlcpy(namebuf, name, maxlen);
icculus@9
   576
            return namebuf;
icculus@9
   577
        } else {
icculus@9
   578
            return name;
icculus@9
   579
        }
icculus@9
   580
    }
icculus@9
   581
    return NULL;
icculus@9
   582
}
icculus@9
   583
icculus@9
   584
const char *
icculus@9
   585
SDL_AudioDriverName(char *namebuf, int maxlen)
icculus@9
   586
{
icculus@9
   587
    return GetDriverName(SDL20_GetCurrentAudioDriver(), namebuf, maxlen);
icculus@9
   588
}
icculus@9
   589
icculus@9
   590
const char *
icculus@9
   591
SDL_VideoDriverName(char *namebuf, int maxlen)
icculus@9
   592
{
icculus@9
   593
    return GetDriverName(SDL20_GetCurrentVideoDriver(), namebuf, maxlen);
icculus@9
   594
}
icculus@9
   595
icculus@18
   596
static int
icculus@18
   597
EventFilter20to12(void *data, SDL_Event *event20)
icculus@15
   598
{
icculus@18
   599
    const int maxUserEvents12 = SDL12_NUMEVENTS - SDL12_USEREVENT;
icculus@18
   600
    SDL12_Event event12;
icculus@18
   601
icculus@18
   602
    SDL_assert(data == NULL);  /* currently unused. */
icculus@18
   603
icculus@18
   604
    SDL_zero(event12);
icculus@18
   605
icculus@18
   606
    switch (event20->type)
icculus@18
   607
    {
icculus@18
   608
        case SDL_QUIT:
icculus@18
   609
            event12->type = SDL12_QUIT;
icculus@18
   610
            break;
icculus@18
   611
icculus@18
   612
        case SDL_WINDOWEVENT:
icculus@18
   613
            switch (event20->window.event)
icculus@18
   614
            {
icculus@18
   615
                case SDL_WINDOWEVENT_CLOSE:
icculus@18
   616
                    event12->type = SDL12_QUIT;
icculus@18
   617
                    break;
icculus@18
   618
icculus@18
   619
                case SDL_WINDOWEVENT_SHOWN:
icculus@18
   620
                case SDL_WINDOWEVENT_EXPOSED:
icculus@18
   621
                    event12->type = SDL12_VIDEOEXPOSE;
icculus@18
   622
                    break;
icculus@18
   623
icculus@18
   624
                case SDL_WINDOWEVENT_RESIZED:
icculus@18
   625
                case SDL_WINDOWEVENT_SIZE_CHANGED:  // !!! FIXME: what's the difference between RESIZED and SIZE_CHANGED?
icculus@18
   626
                    event12->type = SDL12_VIDEORESIZE;
icculus@18
   627
                    event12->resize.w = event20->window.data1;
icculus@18
   628
                    event12->resize.h = event20->window.data2;
icculus@18
   629
                    break;
icculus@18
   630
icculus@18
   631
                case SDL_WINDOWEVENT_MINIMIZED:
icculus@18
   632
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   633
                    event12->active.gain = 0;
icculus@18
   634
                    event12->active.state = SDL_APPACTIVE;
icculus@18
   635
                    break;
icculus@18
   636
icculus@18
   637
                case SDL_WINDOWEVENT_RESTORED:
icculus@18
   638
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   639
                    event12->active.gain = 1;
icculus@18
   640
                    event12->active.state = SDL_APPACTIVE;
icculus@18
   641
                    break;
icculus@18
   642
icculus@18
   643
                case SDL_WINDOWEVENT_ENTER:
icculus@18
   644
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   645
                    event12->active.gain = 1;
icculus@18
   646
                    event12->active.state = SDL_APPMOUSEFOCUS;
icculus@18
   647
                    break;
icculus@18
   648
icculus@18
   649
                case SDL_WINDOWEVENT_LEAVE:
icculus@18
   650
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   651
                    event12->active.gain = 0;
icculus@18
   652
                    event12->active.state = SDL_APPMOUSEFOCUS;
icculus@18
   653
                    break;
icculus@18
   654
icculus@18
   655
                case SDL_WINDOWEVENT_FOCUS_GAINED:
icculus@18
   656
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   657
                    event12->active.gain = 1;
icculus@18
   658
                    event12->active.state = SDL_APPINPUTFOCUS;
icculus@18
   659
                    break;
icculus@18
   660
icculus@18
   661
                case SDL_WINDOWEVENT_FOCUS_LOST:
icculus@18
   662
                    event12->type = SDL_ACTIVEEVENT;
icculus@18
   663
                    event12->active.gain = 0;
icculus@18
   664
                    event12->active.state = SDL_APPINPUTFOCUS;
icculus@18
   665
                    break;
icculus@18
   666
            }
icculus@18
   667
            break;
icculus@18
   668
icculus@18
   669
        // !!! FIXME: this is sort of a mess to convert.
icculus@18
   670
        //case SDL_SYSWMEVENT:
icculus@18
   671
icculus@18
   672
        // !!! FIXME: write me
icculus@18
   673
        case SDL_KEYDOWN:
icculus@18
   674
        case SDL_KEYUP:
icculus@18
   675
            return 0;
icculus@18
   676
icculus@18
   677
        // !!! FIXME: write me
icculus@18
   678
        case SDL_TEXTEDITING:
icculus@18
   679
        case SDL_TEXTINPUT:
icculus@18
   680
            return 0;
icculus@18
   681
icculus@18
   682
        case SDL_MOUSEMOTION:
icculus@18
   683
        	event12->type = SDL12_MOUSEMOTION;
icculus@18
   684
            event12->motion.which = (Uint8) event20->motion.which;
icculus@18
   685
            event12->motion.state = event20->motion.state;
icculus@18
   686
            event12->motion.x = (Uint16) event20->motion.x;
icculus@18
   687
            event12->motion.y = (Uint16) event20->motion.y;
icculus@18
   688
            event12->motion.xrel = (Sint16) event20->motion.xrel;
icculus@18
   689
            event12->motion.yrel = (Sint16) event20->motion.yrel;
icculus@18
   690
            break;
icculus@18
   691
icculus@18
   692
        case SDL_MOUSEBUTTONDOWN:
icculus@18
   693
        	event12->type = SDL12_MOUSEBUTTONDOWN;
icculus@18
   694
            event12->button.which = (Uint8) event20->button.which;
icculus@18
   695
            event12->button.button = event20->button.button;
icculus@18
   696
            event12->button.state = event20->button.state;
icculus@18
   697
            event12->button.x = (Uint16) event20->button.x;
icculus@18
   698
            event12->button.y = (Uint16) event20->button.y;
icculus@18
   699
            break;
icculus@18
   700
icculus@18
   701
        case SDL_MOUSEBUTTONUP:
icculus@18
   702
        	event12->type = SDL12_MOUSEBUTTONUP;
icculus@18
   703
            event12->button.which = (Uint8) event20->button.which;
icculus@18
   704
            event12->button.button = event20->button.button;
icculus@18
   705
            event12->button.state = event20->button.state;
icculus@18
   706
            event12->button.x = (Uint16) event20->button.x;
icculus@18
   707
            event12->button.y = (Uint16) event20->button.y;
icculus@18
   708
            break;
icculus@18
   709
icculus@18
   710
        case SDL_MOUSEWHEEL:
icculus@18
   711
            return 0;  // !!! FIXME
icculus@18
   712
        	//event12->type = SDL12_MOUSEBUTTONDOWN;
icculus@18
   713
            //check app filter, push event
icculus@18
   714
        	//event12->type = SDL12_MOUSEBUTTONUP;
icculus@18
   715
            break;
icculus@18
   716
icculus@18
   717
        case SDL_JOYAXISMOTION:
icculus@18
   718
            event12->type = SDL12_JOYAXISMOTION;
icculus@18
   719
            event12->jaxis.which = (Uint8) event20->jaxis.which;
icculus@18
   720
            event12->jaxis.axis = event20->jaxis.axis;
icculus@18
   721
            event12->jaxis.value = event20->jaxis.value;
icculus@18
   722
            break;
icculus@18
   723
icculus@18
   724
        case SDL_JOYBALLMOTION:
icculus@18
   725
            event12->type = SDL12_JOYBALLMOTION;
icculus@18
   726
            event12->jball.which = (Uint8) event20->jball.which;
icculus@18
   727
            event12->jball.ball = event20->jball.ball;
icculus@18
   728
            event12->jball.xrel = event20->jball.xrel;
icculus@18
   729
            event12->jball.yrel = event20->jball.yrel;
icculus@18
   730
            break;
icculus@18
   731
icculus@18
   732
        case SDL_JOYHATMOTION:
icculus@18
   733
            event12->type = SDL12_JOYHATMOTION;
icculus@18
   734
            event12->jhat.which = (Uint8) event20->jhat.which;
icculus@18
   735
            event12->jhat.hat = event20->jhat.hat;
icculus@18
   736
            event12->jhat.value = event20->jhat.xrel;
icculus@18
   737
            break;
icculus@18
   738
icculus@18
   739
        case SDL_JOYBUTTONDOWN:
icculus@18
   740
            event12->type = SDL12_JOYBUTTONDOWN;
icculus@18
   741
            event12->jbutton.which = (Uint8) event20->jbutton.which;
icculus@18
   742
            event12->jbutton.button = event20->jbutton.button;
icculus@18
   743
            event12->jbutton.state = event20->jbutton.state;
icculus@18
   744
            break;
icculus@18
   745
icculus@18
   746
        case SDL_JOYBUTTONUP:
icculus@18
   747
            event12->type = SDL12_JOYBUTTONUP;
icculus@18
   748
            event12->jbutton.which = (Uint8) event20->jbutton.which;
icculus@18
   749
            event12->jbutton.button = event20->jbutton.button;
icculus@18
   750
            event12->jbutton.state = event20->jbutton.state;
icculus@18
   751
            break;
icculus@18
   752
icculus@18
   753
        //case SDL_JOYDEVICEADDED:
icculus@18
   754
        //case SDL_JOYDEVICEREMOVED:
icculus@18
   755
	    //case SDL_CONTROLLERAXISMOTION:
icculus@18
   756
	    //case SDL_CONTROLLERBUTTONDOWN:
icculus@18
   757
	    //case SDL_CONTROLLERBUTTONUP:
icculus@18
   758
	    //case SDL_CONTROLLERDEVICEADDED:
icculus@18
   759
	    //case SDL_CONTROLLERDEVICEREMOVED:
icculus@18
   760
	    //case SDL_CONTROLLERDEVICEREMAPPED:
icculus@18
   761
        //case SDL_FINGERDOWN:
icculus@18
   762
        //case SDL_FINGERUP:
icculus@18
   763
        //case SDL_FINGERMOTION:
icculus@18
   764
        //case SDL_DOLLARGESTURE:
icculus@18
   765
        //case SDL_DOLLARRECORD:
icculus@18
   766
        //case SDL_MULTIGESTURE:
icculus@18
   767
        //case SDL_CLIPBOARDUPDATE:
icculus@18
   768
        //case SDL_DROPFILE:
icculus@18
   769
icculus@18
   770
        default:
icculus@18
   771
            return 0;  /* drop everything else. */
icculus@18
   772
    }
icculus@18
   773
icculus@18
   774
    if ((!EventFilter12) || (EventFilter12(&event12)))
icculus@18
   775
        SDL_PushEvent(&event12);
icculus@18
   776
icculus@18
   777
    return 0;  /* always drop it from the 2.0 event queue. */
icculus@18
   778
}
icculus@18
   779
icculus@18
   780
int
icculus@18
   781
SDL_PollEvent(SDL12_Event *event12)
icculus@18
   782
{
icculus@18
   783
    SDL20_PumpEvents();  /* this will run our filter and build our 1.2 queue. */
icculus@18
   784
icculus@18
   785
    if (EventQueueRead >= EventQueueWrite)
icculus@18
   786
        return 0;  /* no events at the moment. */
icculus@18
   787
icculus@18
   788
    SDL_memcpy(event12, &EventQueue[EventQueueRead % SDL12_MAXEVENTS], sizeof (SDL12_Event));
icculus@18
   789
    EventQueueRead++;
icculus@18
   790
    return 1;
icculus@18
   791
}
icculus@18
   792
icculus@18
   793
int
icculus@18
   794
SDL_PushEvent(SDL12_Event *event12)
icculus@18
   795
{
icculus@18
   796
    if ((EventQueueWrite - EventQueueRead) >= SDL12_MAXEVENTS)
icculus@18
   797
        return -1;  /* no space available at the moment. */
icculus@18
   798
icculus@18
   799
    SDL_memcpy(&EventQueue[EventQueueWrite % SDL12_MAXEVENTS], event12, sizeof (SDL12_Event));
icculus@18
   800
    EventQueueWrite++;
icculus@18
   801
    return 0;
icculus@18
   802
}
icculus@18
   803
icculus@18
   804
int
icculus@18
   805
SDL_PeepEvents(SDL12_Event *events12, int numevents, SDL_eventaction action, Uint32 mask)
icculus@18
   806
{
icculus@18
   807
    int i;
icculus@18
   808
icculus@18
   809
    if (action == SDL_ADDEVENT)
icculus@18
   810
    {
icculus@18
   811
        for (i = 0; i < numevents; i++)
icculus@18
   812
        {
icculus@18
   813
            if ((EventQueueWrite - EventQueueRead) >= SDL12_MAXEVENTS)
icculus@18
   814
                break;  /* out of space for more events. */
icculus@18
   815
            SDL_memcpy(&EventQueue[EventQueueWrite % SDL12_MAXEVENTS], &events12[i], sizeof (SDL12_Event));
icculus@18
   816
            EventQueueWrite++;
icculus@18
   817
        }
icculus@18
   818
        return i;
icculus@18
   819
    }
icculus@18
   820
    else if ((action == SDL_PEEKEVENT) || (action == SDL_GETEVENT))
icculus@18
   821
    {
icculus@18
   822
        const SDL_bool isGet = (action == SDL_GETEVENT);
icculus@18
   823
        int seen = 0;
icculus@18
   824
        int chosen = 0;
icculus@18
   825
        while (chosen < numevents)
icculus@18
   826
        {
icculus@18
   827
            const SDL12_Event *event12;
icculus@18
   828
icculus@18
   829
            if ((EventQueueRead + seen) >= EventQueueWrite)
icculus@18
   830
                break;  /* no more events at the moment. */
icculus@18
   831
icculus@18
   832
            event12 = &EventQueue[(EventQueueRead+seen) % SDL12_MAXEVENTS];
icculus@18
   833
            seen++;
icculus@18
   834
icculus@18
   835
            if (mask & (1<<event12->type))
icculus@18
   836
            {
icculus@18
   837
                SDL_memcpy(&events12[chosen++], event12, sizeof (SDL12_Event));
icculus@18
   838
                if (isGet) {
icculus@18
   839
                    event12->type = 0xFF;  /* mark it used. */
icculus@18
   840
                }
icculus@18
   841
            }
icculus@18
   842
        }
icculus@18
   843
icculus@18
   844
        if (isGet)
icculus@18
   845
        {
icculus@18
   846
            // !!! FIXME: remove events we ate.
icculus@18
   847
        }
icculus@18
   848
icculus@18
   849
        return chosen;
icculus@18
   850
    }
icculus@18
   851
icculus@18
   852
    return 0;
icculus@18
   853
}
icculus@18
   854
icculus@18
   855
void
icculus@18
   856
SDL_SetEventFilter(SDL12_EventFilter filter12)
icculus@18
   857
{
icculus@18
   858
    /* We always have a filter installed, but will call the app's too. */
icculus@18
   859
    EventFilter12 = filter12;
icculus@18
   860
}
icculus@18
   861
icculus@18
   862
SDL12_EventFilter
icculus@18
   863
SDL_GetEventFilter(void)
icculus@18
   864
{
icculus@18
   865
    return EventFilter12;
icculus@18
   866
}
icculus@18
   867
icculus@15
   868
icculus@15
   869
SDL12_Surface *
icculus@15
   870
Surface20to12(SDL_Surface *surface20)
icculus@15
   871
{
icculus@15
   872
    SDL12_Surface *surface12 = NULL;
icculus@15
   873
    SDL12_Palette *palette12 = NULL;
icculus@15
   874
    SDL12_PixelFormat *format12 = NULL;
icculus@15
   875
    UInt32 flags = 0;
icculus@15
   876
icculus@15
   877
    if (!surface20)
icculus@15
   878
        return NULL;
icculus@15
   879
icculus@15
   880
    surface12 = (SDL12_Surface *) SDL20_malloc(sizeof (SDL12_Surface));
icculus@15
   881
    if (!surface12)
icculus@15
   882
        goto failed;
icculus@15
   883
icculus@15
   884
    palette12 = (SDL12_Palette *) SDL20_malloc(sizeof (SDL12_Palette));
icculus@15
   885
    if (!palette12)
icculus@15
   886
        goto failed;
icculus@15
   887
icculus@15
   888
    format12 = (SDL12_PixelFormat *) SDL20_malloc(sizeof (SDL12_PixelFormat));
icculus@15
   889
    if (!format12)
icculus@15
   890
        goto failed;
icculus@15
   891
icculus@15
   892
    SDL_zerop(palette12);
icculus@15
   893
    palette12->ncolors = surface20->palette->ncolors;
icculus@15
   894
    palette12->colors = surface20->palette->colors;
icculus@15
   895
icculus@15
   896
    SDL_zerop(format12);
icculus@15
   897
    format12->palette = palette12;
icculus@15
   898
    format12->BitsPerPixel = surface20->format->BitsPerPixel;
icculus@15
   899
    format12->BytesPerPixel = surface20->format->BytesPerPixel;
icculus@15
   900
    format12->Rloss = surface20->format->Rloss;
icculus@15
   901
    format12->Gloss = surface20->format->Gloss;
icculus@15
   902
    format12->Bloss = surface20->format->Bloss;
icculus@15
   903
    format12->Aloss = surface20->format->Aloss;
icculus@15
   904
    format12->Rshift = surface20->format->Rshift;
icculus@15
   905
    format12->Gshift = surface20->format->Gshift;
icculus@15
   906
    format12->Bshift = surface20->format->Bshift;
icculus@15
   907
    format12->Ashift = surface20->format->Ashift;
icculus@15
   908
    format12->Rmask = surface20->format->Rmask;
icculus@15
   909
    format12->Gmask = surface20->format->Gmask;
icculus@15
   910
    format12->Bmask = surface20->format->Bmask;
icculus@15
   911
    format12->Amask = surface20->format->Amask;
icculus@15
   912
    /* !!! FIXME: format12->colorkey; */
icculus@15
   913
    /* !!! FIXME: format12->alpha; */
icculus@15
   914
icculus@15
   915
    SDL_zerop(surface12);
icculus@15
   916
    flags = surface20->flags;
icculus@15
   917
    #define MAPSURFACEFLAGS(fl) { if (surface20->flags & SDL_##fl) { surface12->flags |= SDL12_##fl; flags &= ~SDL_##fl; } }
icculus@15
   918
    MAPSURFACEFLAGS(PREALLOC);
icculus@15
   919
    MAPSURFACEFLAGS(RLEACCEL);
icculus@15
   920
    MAPSURFACEFLAGS(DONTFREE);
icculus@15
   921
    #undef MAPSURFACEFLAGS
icculus@17
   922
    assert(flags == 0);  /* non-zero if there's a flag we didn't map. */
icculus@15
   923
icculus@15
   924
    surface12->format = format12;
icculus@15
   925
    surface12->w = surface20->w;
icculus@15
   926
    surface12->h = surface20->h;
icculus@15
   927
    surface12->pitch = (Uint16) surface20->pitch;  /* !!! FIXME: make sure this fits in a Uint16 */
icculus@15
   928
    surface12->pixels = surface20->pixels;
icculus@15
   929
    surface12->offset = 0;
icculus@15
   930
    surface12->hwdata = surface20;
icculus@15
   931
    SDL20_memcpy(&surface12->clip_rect, &surface20->clip_rect, sizeof (SDL_Rect));
icculus@15
   932
    surface12->refcount = surface20->refcount;
icculus@15
   933
icculus@15
   934
    return surface12;
icculus@15
   935
icculus@15
   936
failed:
icculus@15
   937
    SDL20_free(surface12);
icculus@15
   938
    SDL20_free(palette12);
icculus@15
   939
    SDL20_free(format12);
icculus@15
   940
    return NULL;
icculus@15
   941
}
icculus@15
   942
icculus@15
   943
SDL12_Surface *
icculus@15
   944
SDL_CreateRGBSurface(Uint32 sdl12flags, int width, int height, int depth, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
icculus@15
   945
{
icculus@15
   946
    SDL_Surface *surface20 = SDL20_CreateRGBSurface(0, width, height, depth, Rmask, Gmask, Bmask, Amask);
icculus@15
   947
    SDL12_Surface *surface12 = Surface20to12(surface20);
icculus@15
   948
    if (!surface12) {
icculus@15
   949
        SDL20_FreeSurface(surface20);
icculus@15
   950
        return NULL;
icculus@15
   951
    }
icculus@15
   952
icculus@17
   953
    assert(surface12->flags == 0);  // shouldn't have prealloc, rleaccel, or dontfree.
icculus@15
   954
    return surface12;
icculus@15
   955
}
icculus@15
   956
icculus@15
   957
SDL12_Surface *
icculus@15
   958
SDL_CreateRGBSurfaceFrom(void *pixels, int width, int height, int depth, int pitch, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
icculus@15
   959
{
icculus@15
   960
    SDL_Surface *surface20 = SDL20_CreateRGBSurfaceFrom(pixels, width, height, depth, Rmask, Gmask, Bmask, Amask);
icculus@15
   961
    SDL12_Surface *surface12 = Surface20to12(surface20);
icculus@15
   962
    if (!surface12) {
icculus@15
   963
        SDL20_FreeSurface(surface20);
icculus@15
   964
        return NULL;
icculus@15
   965
    }
icculus@15
   966
icculus@17
   967
    assert(surface12->flags == SDL12_PREALLOC);  // should _only_ have prealloc.
icculus@15
   968
    return surface12;
icculus@15
   969
}
icculus@15
   970
icculus@15
   971
void SDL_FreeSurface(SDL12_Surface *surface12)
icculus@15
   972
{
icculus@15
   973
    if (surface12) {
icculus@15
   974
        SDL20_FreeSurface((SDL_Surface *) surface12->hwdata);
icculus@15
   975
        if (surface12->format) {
icculus@15
   976
            SDL20_free(surface12->format->palette);
icculus@15
   977
            SDL20_free(surface12->format);
icculus@15
   978
        }
icculus@15
   979
        SDL20_free(surface12);
icculus@15
   980
    }
icculus@15
   981
}
icculus@15
   982
icculus@17
   983
static SDL_PixelFormat *
icculus@17
   984
PixelFormat12to20(SDL_PixelFormat *format20, SDL_Palette *palette20, SDL12_PixelFormat *format12)
icculus@17
   985
{
icculus@17
   986
    palette20->ncolors = format12->palette->ncolors;
icculus@17
   987
    palette20->colors = format12->palette->colors;
icculus@17
   988
    palette20->version = 1;
icculus@17
   989
    palette20->refcount = 1;
icculus@17
   990
    format20->format = SDL_MasksToPixelFormatEnum(format12->BitsPerPixel, format12->Rmask, format12->Gmask, format12->Bmask, format12->Amask);
icculus@17
   991
    format20->palette = palette20;
icculus@17
   992
    format20->BitsPerPixel = format12->BitsPerPixel;
icculus@17
   993
    format20->BytesPerPixel = format12->BytesPerPixel;
icculus@17
   994
    format20->Rmask = format12->Rmask;
icculus@17
   995
    format20->Gmask = format12->Gmask;
icculus@17
   996
    format20->Bmask = format12->Bmask;
icculus@17
   997
    format20->Amask = format12->Amask;
icculus@17
   998
    format20->Rloss = format12->Rloss;
icculus@17
   999
    format20->Gloss = format12->Gloss;
icculus@17
  1000
    format20->Bloss = format12->Bloss;
icculus@17
  1001
    format20->Aloss = format12->Aloss;
icculus@17
  1002
    format20->Rshift = format12->Rshift;
icculus@17
  1003
    format20->Gshift = format12->Gshift;
icculus@17
  1004
    format20->Bshift = format12->Bshift;
icculus@17
  1005
    format20->Ashift = format12->Ashift;
icculus@17
  1006
    format20->refcount = 1;
icculus@17
  1007
    format20->next = NULL;
icculus@17
  1008
    return format20;
icculus@17
  1009
}
icculus@17
  1010
icculus@17
  1011
Uint32
icculus@17
  1012
SDL_MapRGB(const SDL12_PixelFormat *format12, Uint8 r, Uint8 g, Uint8 b)
icculus@17
  1013
{
icculus@17
  1014
    /* This is probably way slower than apps expect. */
icculus@17
  1015
    SDL_PixelFormat format20;
icculus@17
  1016
    SDL_Palette palette20;
icculus@17
  1017
    return SDL20_MapRGB(PixelFormat12to20(&format20, &palette20, format12), r, g, b);
icculus@17
  1018
}
icculus@17
  1019
icculus@17
  1020
Uint32
icculus@17
  1021
SDL_MapRGBA(const SDL12_PixelFormat *format12, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
icculus@17
  1022
{
icculus@17
  1023
    /* This is probably way slower than apps expect. */
icculus@17
  1024
    SDL_PixelFormat format20;
icculus@17
  1025
    SDL_Palette palette20;
icculus@17
  1026
    return SDL20_MapRGBA(PixelFormat12to20(&format20, &palette20, format12), r, g, b, a);
icculus@17
  1027
}
icculus@17
  1028
icculus@17
  1029
void
icculus@17
  1030
SDL_GetRGB(Uint32 pixel, const SDL12_PixelFormat *format12, Uint8 *r, Uint8 *g, Uint8 *b)
icculus@17
  1031
{
icculus@17
  1032
    /* This is probably way slower than apps expect. */
icculus@17
  1033
    SDL_PixelFormat format20;
icculus@17
  1034
    SDL_Palette palette20;
icculus@17
  1035
    return SDL20_GetRGB(pixel, PixelFormat12to20(&format20, &palette20, format12), r, g, b);
icculus@17
  1036
}
icculus@17
  1037
icculus@17
  1038
void
icculus@17
  1039
SDL_GetRGBA(Uint32 pixel, const SDL12_PixelFormat *format12, Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *a)
icculus@17
  1040
{
icculus@17
  1041
    /* This is probably way slower than apps expect. */
icculus@17
  1042
    SDL_PixelFormat format20;
icculus@17
  1043
    SDL_Palette palette20;
icculus@17
  1044
    return SDL20_GetRGB(pixel, PixelFormat12to20(&format20, &palette20, format12), r, g, b, a);
icculus@17
  1045
}
icculus@15
  1046
icculus@9
  1047
const SDL12_VideoInfo *
icculus@9
  1048
SDL_GetVideoInfo(void)
icculus@9
  1049
{
icculus@9
  1050
    SDL_DisplayMode mode;
icculus@9
  1051
icculus@17
  1052
    if (!VideoInfo.vfmt && SDL20_GetDesktopDisplayMode(VideoDisplayIndex, &mode) == 0) {
icculus@17
  1053
        VideoInfo.vfmt = SDL20_AllocFormat(mode.format);
icculus@17
  1054
        VideoInfo.current_w = mode.w;
icculus@17
  1055
        VideoInfo.current_h = mode.h;
icculus@9
  1056
        // !!! FIXME
icculus@17
  1057
        //VideoInfo.wm_available = 1;
icculus@17
  1058
        //VideoInfo.video_mem = 1024 * 256;
icculus@9
  1059
    }
icculus@17
  1060
    return &VideoInfo;
icculus@9
  1061
}
icculus@9
  1062
icculus@9
  1063
int
icculus@9
  1064
SDL_VideoModeOK(int width, int height, int bpp, Uint32 sdl12flags)
icculus@9
  1065
{
icculus@9
  1066
    int i, nummodes, actual_bpp = 0;
icculus@9
  1067
icculus@9
  1068
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@9
  1069
        return 0;
icculus@9
  1070
    }
icculus@9
  1071
icculus@9
  1072
    if (!(sdl12flags & SDL12_FULLSCREEN)) {
icculus@9
  1073
        SDL_DisplayMode mode;
icculus@16
  1074
        SDL20_GetDesktopDisplayMode(VideoDisplayIndex, &mode);
icculus@9
  1075
        return SDL_BITSPERPIXEL(mode.format);
icculus@9
  1076
    }
icculus@9
  1077
icculus@16
  1078
    nummodes = SDL20_GetNumDisplayModes(VideoDisplayIndex);
icculus@9
  1079
    for (i = 0; i < nummodes; ++i) {
icculus@9
  1080
        SDL_DisplayMode mode;
icculus@16
  1081
        SDL20_GetDisplayMode(VideoDisplayIndex, i, &mode);
icculus@9
  1082
        if (!mode.w || !mode.h || (width == mode.w && height == mode.h)) {
icculus@9
  1083
            if (!mode.format) {
icculus@9
  1084
                return bpp;
icculus@9
  1085
            }
icculus@9
  1086
            if (SDL_BITSPERPIXEL(mode.format) >= (Uint32) bpp) {
icculus@9
  1087
                actual_bpp = SDL_BITSPERPIXEL(mode.format);
icculus@9
  1088
            }
icculus@9
  1089
        }
icculus@9
  1090
    }
icculus@9
  1091
    return actual_bpp;
icculus@9
  1092
}
icculus@9
  1093
icculus@9
  1094
SDL_Rect **
icculus@17
  1095
SDL_ListModes(const SDL12_PixelFormat *format, Uint32 flags)
icculus@9
  1096
{
icculus@9
  1097
    int i, nmodes;
icculus@9
  1098
    SDL_Rect **modes;
icculus@9
  1099
icculus@9
  1100
    if (!SDL20_WasInit(SDL_INIT_VIDEO)) {
icculus@9
  1101
        return NULL;
icculus@9
  1102
    }
icculus@9
  1103
icculus@9
  1104
    if (!(flags & SDL12_FULLSCREEN)) {
icculus@9
  1105
        return (SDL_Rect **) (-1);
icculus@9
  1106
    }
icculus@9
  1107
icculus@9
  1108
    if (!format) {
icculus@17
  1109
        format = VideoInfo.vfmt;
icculus@9
  1110
    }
icculus@9
  1111
icculus@17
  1112
    /* !!! FIXME: Memory leak */
icculus@9
  1113
    nmodes = 0;
icculus@9
  1114
    modes = NULL;
icculus@16
  1115
    for (i = 0; i < SDL20_GetNumDisplayModes(VideoDisplayIndex); ++i) {
icculus@9
  1116
        SDL_DisplayMode mode;
icculus@9
  1117
        int bpp;
icculus@9
  1118
icculus@16
  1119
        SDL20_GetDisplayMode(VideoDisplayIndex, i, &mode);
icculus@9
  1120
        if (!mode.w || !mode.h) {
icculus@9
  1121
            return (SDL_Rect **) (-1);
icculus@9
  1122
        }
icculus@9
  1123
        
icculus@9
  1124
        /* Copied from src/video/SDL_pixels.c:SDL_PixelFormatEnumToMasks */
icculus@9
  1125
        if (SDL_BYTESPERPIXEL(mode.format) <= 2) {
icculus@9
  1126
            bpp = SDL_BITSPERPIXEL(mode.format);
icculus@9
  1127
        } else {
icculus@9
  1128
            bpp = SDL_BYTESPERPIXEL(mode.format) * 8;
icculus@9
  1129
        }
icculus@9
  1130
icculus@9
  1131
        if (bpp != format->BitsPerPixel) {
icculus@9
  1132
            continue;
icculus@9
  1133
        }
icculus@9
  1134
        if (nmodes > 0 && modes[nmodes - 1]->w == mode.w
icculus@9
  1135
            && modes[nmodes - 1]->h == mode.h) {
icculus@9
  1136
            continue;
icculus@9
  1137
        }
icculus@9
  1138
icculus@17
  1139
        modes = SDL20_realloc(modes, (nmodes + 2) * sizeof(*modes));
icculus@9
  1140
        if (!modes) {
icculus@9
  1141
            return NULL;
icculus@9
  1142
        }
icculus@17
  1143
        modes[nmodes] = (SDL_Rect *) SDL20_malloc(sizeof(SDL_Rect));
icculus@9
  1144
        if (!modes[nmodes]) {
icculus@9
  1145
            return NULL;
icculus@9
  1146
        }
icculus@9
  1147
        modes[nmodes]->x = 0;
icculus@9
  1148
        modes[nmodes]->y = 0;
icculus@9
  1149
        modes[nmodes]->w = mode.w;
icculus@9
  1150
        modes[nmodes]->h = mode.h;
icculus@9
  1151
        ++nmodes;
icculus@9
  1152
    }
icculus@9
  1153
    if (modes) {
icculus@9
  1154
        modes[nmodes] = NULL;
icculus@9
  1155
    }
icculus@9
  1156
    return modes;
icculus@9
  1157
}
icculus@9
  1158
icculus@9
  1159
static void
icculus@9
  1160
GetEnvironmentWindowPosition(int w, int h, int *x, int *y)
icculus@9
  1161
{
icculus@16
  1162
    int display = VideoDisplayIndex;
icculus@9
  1163
    const char *window = SDL_getenv("SDL_VIDEO_WINDOW_POS");
icculus@9
  1164
    const char *center = SDL_getenv("SDL_VIDEO_CENTERED");
icculus@9
  1165
    if (window) {
icculus@9
  1166
        if (SDL_sscanf(window, "%d,%d", x, y) == 2) {
icculus@9
  1167
            return;
icculus@9
  1168
        }
icculus@9
  1169
        if (SDL_strcmp(window, "center") == 0) {
icculus@9
  1170
            center = window;
icculus@9
  1171
        }
icculus@9
  1172
    }
icculus@9
  1173
    if (center) {
icculus@9
  1174
        *x = SDL_WINDOWPOS_CENTERED_DISPLAY(display);
icculus@9
  1175
        *y = SDL_WINDOWPOS_CENTERED_DISPLAY(display);
icculus@9
  1176
    }
icculus@9
  1177
}
icculus@9
  1178
icculus@9
  1179
static void
icculus@9
  1180
ClearVideoSurface()
icculus@9
  1181
{
icculus@16
  1182
    if (ShadowSurface) {
icculus@17
  1183
        SDL20_FillRect(ShadowSurface, NULL,
icculus@17
  1184
            SDL20_MapRGB(ShadowSurface->format, 0, 0, 0));
icculus@9
  1185
    }
icculus@17
  1186
    SDL20_FillRect(WindowSurface, NULL, 0);
icculus@17
  1187
    SDL20_UpdateWindowSurface(VideoWindow);
icculus@9
  1188
}
icculus@9
  1189
icculus@9
  1190
static void
icculus@9
  1191
SetupScreenSaver(int flags)
icculus@9
  1192
{
icculus@9
  1193
    const char *env;
icculus@9
  1194
    SDL_bool allow_screensaver;
icculus@9
  1195
icculus@9
  1196
    /* Allow environment override of screensaver disable */
icculus@9
  1197
    env = SDL_getenv("SDL_VIDEO_ALLOW_SCREENSAVER");
icculus@9
  1198
    if (env) {
icculus@9
  1199
        allow_screensaver = SDL_atoi(env) ? SDL_TRUE : SDL_FALSE;
icculus@9
  1200
    } else if (flags & SDL_FULLSCREEN) {
icculus@9
  1201
        allow_screensaver = SDL_FALSE;
icculus@9
  1202
    } else {
icculus@9
  1203
        allow_screensaver = SDL_TRUE;
icculus@9
  1204
    }
icculus@9
  1205
    if (allow_screensaver) {
icculus@17
  1206
        SDL20_EnableScreenSaver();
icculus@9
  1207
    } else {
icculus@17
  1208
        SDL20_DisableScreenSaver();
icculus@9
  1209
    }
icculus@9
  1210
}
icculus@9
  1211
icculus@9
  1212
static int
icculus@17
  1213
ResizeVideoMode(int width, int height, int bpp, Uint32 flags)
icculus@9
  1214
{
icculus@9
  1215
    int w, h;
icculus@9
  1216
icculus@9
  1217
    /* We can't resize something we don't have... */
icculus@16
  1218
    if (!VideoSurface) {
icculus@9
  1219
        return -1;
icculus@9
  1220
    }
icculus@9
  1221
icculus@9
  1222
    /* We probably have to recreate the window in fullscreen mode */
icculus@9
  1223
    if (flags & SDL_FULLSCREEN) {
icculus@9
  1224
        return -1;
icculus@9
  1225
    }
icculus@9
  1226
icculus@9
  1227
    /* I don't think there's any change we can gracefully make in flags */
icculus@16
  1228
    if (flags != VideoFlags) {
icculus@9
  1229
        return -1;
icculus@9
  1230
    }
icculus@16
  1231
    if (bpp != VideoSurface->format->BitsPerPixel) {
icculus@9
  1232
        return -1;
icculus@9
  1233
    }
icculus@9
  1234
icculus@9
  1235
    /* Resize the window */
icculus@16
  1236
    SDL_GetWindowSize(VideoWindow, &w, &h);
icculus@9
  1237
    if (w != width || h != height) {
icculus@16
  1238
        SDL_SetWindowSize(VideoWindow, width, height);
icculus@9
  1239
    }
icculus@9
  1240
icculus@9
  1241
    /* If we're in OpenGL mode, just resize the stub surface and we're done! */
icculus@9
  1242
    if (flags & SDL_OPENGL) {
icculus@16
  1243
        VideoSurface->w = width;
icculus@16
  1244
        VideoSurface->h = height;
icculus@9
  1245
        return 0;
icculus@9
  1246
    }
icculus@9
  1247
icculus@16
  1248
    WindowSurface = SDL_GetWindowSurface(VideoWindow);
icculus@16
  1249
    if (!WindowSurface) {
icculus@9
  1250
        return -1;
icculus@9
  1251
    }
icculus@16
  1252
    if (VideoSurface->format != WindowSurface->format) {
icculus@9
  1253
        return -1;
icculus@9
  1254
    }
icculus@16
  1255
    VideoSurface->w = width;
icculus@16
  1256
    VideoSurface->h = height;
icculus@16
  1257
    VideoSurface->pixels = WindowSurface->pixels;
icculus@16
  1258
    VideoSurface->pitch = WindowSurface->pitch;
icculus@16
  1259
    SDL_SetClipRect(VideoSurface, NULL);
icculus@9
  1260
icculus@16
  1261
    if (ShadowSurface) {
icculus@16
  1262
        ShadowSurface->w = width;
icculus@16
  1263
        ShadowSurface->h = height;
icculus@16
  1264
        ShadowSurface->pitch = SDL_CalculatePitch(ShadowSurface);
icculus@16
  1265
        ShadowSurface->pixels =
icculus@16
  1266
            SDL_realloc(ShadowSurface->pixels,
icculus@16
  1267
                        ShadowSurface->h * ShadowSurface->pitch);
icculus@16
  1268
        SDL_SetClipRect(ShadowSurface, NULL);
icculus@16
  1269
        SDL_InvalidateMap(ShadowSurface->map);
icculus@9
  1270
    } else {
icculus@16
  1271
        PublicSurface = VideoSurface;
icculus@9
  1272
    }
icculus@9
  1273
icculus@9
  1274
    ClearVideoSurface();
icculus@9
  1275
icculus@9
  1276
    return 0;
icculus@9
  1277
}
icculus@9
  1278
icculus@9
  1279
SDL_Surface *
icculus@9
  1280
SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags)
icculus@9
  1281
{
icculus@9
  1282
    SDL_DisplayMode desktop_mode;
icculus@16
  1283
    int display = VideoDisplayIndex;
icculus@9
  1284
    int window_x = SDL_WINDOWPOS_UNDEFINED_DISPLAY(display);
icculus@9
  1285
    int window_y = SDL_WINDOWPOS_UNDEFINED_DISPLAY(display);
icculus@9
  1286
    int window_w;
icculus@9
  1287
    int window_h;
icculus@9
  1288
    Uint32 window_flags;
icculus@9
  1289
    Uint32 surface_flags;
icculus@9
  1290
icculus@9
  1291
    if (!SDL_GetVideoDevice()) {
icculus@9
  1292
        if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE) < 0) {
icculus@9
  1293
            return NULL;
icculus@9
  1294
        }
icculus@9
  1295
    }
icculus@9
  1296
icculus@9
  1297
    SDL_GetDesktopDisplayMode(display, &desktop_mode);
icculus@9
  1298
icculus@9
  1299
    if (width == 0) {
icculus@9
  1300
        width = desktop_mode.w;
icculus@9
  1301
    }
icculus@9
  1302
    if (height == 0) {
icculus@9
  1303
        height = desktop_mode.h;
icculus@9
  1304
    }
icculus@9
  1305
    if (bpp == 0) {
icculus@9
  1306
        bpp = SDL_BITSPERPIXEL(desktop_mode.format);
icculus@9
  1307
    }
icculus@9
  1308
icculus@9
  1309
    /* See if we can simply resize the existing window and surface */
icculus@17
  1310
    if (ResizeVideoMode(width, height, bpp, flags) == 0) {
icculus@16
  1311
        return PublicSurface;
icculus@9
  1312
    }
icculus@9
  1313
icculus@9
  1314
    /* Destroy existing window */
icculus@16
  1315
    PublicSurface = NULL;
icculus@16
  1316
    if (ShadowSurface) {
icculus@16
  1317
        ShadowSurface->flags &= ~SDL_DONTFREE;
icculus@16
  1318
        SDL_FreeSurface(ShadowSurface);
icculus@16
  1319
        ShadowSurface = NULL;
icculus@9
  1320
    }
icculus@16
  1321
    if (VideoSurface) {
icculus@16
  1322
        VideoSurface->flags &= ~SDL_DONTFREE;
icculus@16
  1323
        SDL_FreeSurface(VideoSurface);
icculus@16
  1324
        VideoSurface = NULL;
icculus@9
  1325
    }
icculus@16
  1326
    if (VideoContext) {
icculus@9
  1327
        /* SDL_GL_MakeCurrent(0, NULL); *//* Doesn't do anything */
icculus@16
  1328
        SDL_GL_DeleteContext(VideoContext);
icculus@16
  1329
        VideoContext = NULL;
icculus@9
  1330
    }
icculus@16
  1331
    if (VideoWindow) {
icculus@16
  1332
        SDL_GetWindowPosition(VideoWindow, &window_x, &window_y);
icculus@16
  1333
        SDL_DestroyWindow(VideoWindow);
icculus@9
  1334
    }
icculus@9
  1335
icculus@9
  1336
    /* Set up the event filter */
icculus@9
  1337
    if (!SDL_GetEventFilter(NULL, NULL)) {
icculus@9
  1338
        SDL_SetEventFilter(SDL_CompatEventFilter, NULL);
icculus@9
  1339
    }
icculus@9
  1340
icculus@9
  1341
    /* Create a new window */
icculus@9
  1342
    window_flags = SDL_WINDOW_SHOWN;
icculus@9
  1343
    if (flags & SDL_FULLSCREEN) {
icculus@9
  1344
        window_flags |= SDL_WINDOW_FULLSCREEN;
icculus@9
  1345
    }
icculus@9
  1346
    if (flags & SDL_OPENGL) {
icculus@9
  1347
        window_flags |= SDL_WINDOW_OPENGL;
icculus@9
  1348
    }
icculus@9
  1349
    if (flags & SDL_RESIZABLE) {
icculus@9
  1350
        window_flags |= SDL_WINDOW_RESIZABLE;
icculus@9
  1351
    }
icculus@9
  1352
    if (flags & SDL_NOFRAME) {
icculus@9
  1353
        window_flags |= SDL_WINDOW_BORDERLESS;
icculus@9
  1354
    }
icculus@9
  1355
    GetEnvironmentWindowPosition(width, height, &window_x, &window_y);
icculus@16
  1356
    VideoWindow =
icculus@16
  1357
        SDL_CreateWindow(WindowTitle, window_x, window_y, width, height,
icculus@9
  1358
                         window_flags);
icculus@16
  1359
    if (!VideoWindow) {
icculus@9
  1360
        return NULL;
icculus@9
  1361
    }
icculus@16
  1362
    SDL_SetWindowIcon(VideoWindow, VideoIcon);
icculus@9
  1363
icculus@9
  1364
    SetupScreenSaver(flags);
icculus@9
  1365
icculus@16
  1366
    window_flags = SDL_GetWindowFlags(VideoWindow);
icculus@9
  1367
    surface_flags = 0;
icculus@9
  1368
    if (window_flags & SDL_WINDOW_FULLSCREEN) {
icculus@9
  1369
        surface_flags |= SDL_FULLSCREEN;
icculus@9
  1370
    }
icculus@9
  1371
    if ((window_flags & SDL_WINDOW_OPENGL) && (flags & SDL_OPENGL)) {
icculus@9
  1372
        surface_flags |= SDL_OPENGL;
icculus@9
  1373
    }
icculus@9
  1374
    if (window_flags & SDL_WINDOW_RESIZABLE) {
icculus@9
  1375
        surface_flags |= SDL_RESIZABLE;
icculus@9
  1376
    }
icculus@9
  1377
    if (window_flags & SDL_WINDOW_BORDERLESS) {
icculus@9
  1378
        surface_flags |= SDL_NOFRAME;
icculus@9
  1379
    }
icculus@9
  1380
icculus@16
  1381
    VideoFlags = flags;
icculus@9
  1382
icculus@9
  1383
    /* If we're in OpenGL mode, just create a stub surface and we're done! */
icculus@9
  1384
    if (flags & SDL_OPENGL) {
icculus@16
  1385
        VideoContext = SDL_GL_CreateContext(VideoWindow);
icculus@16
  1386
        if (!VideoContext) {
icculus@9
  1387
            return NULL;
icculus@9
  1388
        }
icculus@16
  1389
        if (SDL_GL_MakeCurrent(VideoWindow, VideoContext) < 0) {
icculus@9
  1390
            return NULL;
icculus@9
  1391
        }
icculus@16
  1392
        VideoSurface =
icculus@9
  1393
            SDL_CreateRGBSurfaceFrom(NULL, width, height, bpp, 0, 0, 0, 0, 0);
icculus@16
  1394
        if (!VideoSurface) {
icculus@9
  1395
            return NULL;
icculus@9
  1396
        }
icculus@16
  1397
        VideoSurface->flags |= surface_flags;
icculus@16
  1398
        PublicSurface = VideoSurface;
icculus@16
  1399
        return PublicSurface;
icculus@9
  1400
    }
icculus@9
  1401
icculus@9
  1402
    /* Create the screen surface */
icculus@16
  1403
    WindowSurface = SDL_GetWindowSurface(VideoWindow);
icculus@16
  1404
    if (!WindowSurface) {
icculus@9
  1405
        return NULL;
icculus@9
  1406
    }
icculus@9
  1407
icculus@9
  1408
    /* Center the public surface in the window surface */
icculus@16
  1409
    SDL_GetWindowSize(VideoWindow, &window_w, &window_h);
icculus@16
  1410
    VideoViewport.x = (window_w - width)/2;
icculus@16
  1411
    VideoViewport.y = (window_h - height)/2;
icculus@16
  1412
    VideoViewport.w = width;
icculus@16
  1413
    VideoViewport.h = height;
icculus@9
  1414
icculus@16
  1415
    VideoSurface = SDL_CreateRGBSurfaceFrom(NULL, 0, 0, 32, 0, 0, 0, 0, 0);
icculus@16
  1416
    VideoSurface->flags |= surface_flags;
icculus@16
  1417
    VideoSurface->flags |= SDL_DONTFREE;
icculus@16
  1418
    SDL_FreeFormat(VideoSurface->format);
icculus@16
  1419
    VideoSurface->format = WindowSurface->format;
icculus@16
  1420
    VideoSurface->format->refcount++;
icculus@16
  1421
    VideoSurface->w = width;
icculus@16
  1422
    VideoSurface->h = height;
icculus@16
  1423
    VideoSurface->pitch = WindowSurface->pitch;
icculus@16
  1424
    VideoSurface->pixels = (void *)((Uint8 *)WindowSurface->pixels +
icculus@16
  1425
        VideoViewport.y * VideoSurface->pitch +
icculus@16
  1426
        VideoViewport.x  * VideoSurface->format->BytesPerPixel);
icculus@16
  1427
    SDL_SetClipRect(VideoSurface, NULL);
icculus@9
  1428
icculus@9
  1429
    /* Create a shadow surface if necessary */
icculus@16
  1430
    if ((bpp != VideoSurface->format->BitsPerPixel)
icculus@9
  1431
        && !(flags & SDL_ANYFORMAT)) {
icculus@16
  1432
        ShadowSurface =
icculus@9
  1433
            SDL_CreateRGBSurface(0, width, height, bpp, 0, 0, 0, 0);
icculus@16
  1434
        if (!ShadowSurface) {
icculus@9
  1435
            return NULL;
icculus@9
  1436
        }
icculus@16
  1437
        ShadowSurface->flags |= surface_flags;
icculus@16
  1438
        ShadowSurface->flags |= SDL_DONTFREE;
icculus@9
  1439
icculus@16
  1440
        /* 8-bit ShadowSurface surfaces report that they have exclusive palette */
icculus@16
  1441
        if (ShadowSurface->format->palette) {
icculus@16
  1442
            ShadowSurface->flags |= SDL_HWPALETTE;
icculus@16
  1443
            SDL_DitherColors(ShadowSurface->format->palette->colors,
icculus@16
  1444
                             ShadowSurface->format->BitsPerPixel);
icculus@9
  1445
        }
icculus@16
  1446
        SDL_FillRect(ShadowSurface, NULL,
icculus@16
  1447
            SDL_MapRGB(ShadowSurface->format, 0, 0, 0));
icculus@9
  1448
    }
icculus@16
  1449
    PublicSurface =
icculus@16
  1450
        (ShadowSurface ? ShadowSurface : VideoSurface);
icculus@9
  1451
icculus@9
  1452
    ClearVideoSurface();
icculus@9
  1453
icculus@9
  1454
    /* We're finally done! */
icculus@16
  1455
    return PublicSurface;
icculus@9
  1456
}
icculus@9
  1457
icculus@9
  1458
SDL_Surface *
icculus@9
  1459
SDL_GetVideoSurface(void)
icculus@9
  1460
{
icculus@16
  1461
    return PublicSurface;
icculus@9
  1462
}
icculus@9
  1463
icculus@9
  1464
int
icculus@9
  1465
SDL_SetAlpha(SDL_Surface * surface, Uint32 flag, Uint8 value)
icculus@9
  1466
{
icculus@9
  1467
    if (flag & SDL_SRCALPHA) {
icculus@9
  1468
        /* According to the docs, value is ignored for alpha surfaces */
icculus@9
  1469
        if (surface->format->Amask) {
icculus@9
  1470
            value = 0xFF;
icculus@9
  1471
        }
icculus@9
  1472
        SDL_SetSurfaceAlphaMod(surface, value);
icculus@9
  1473
        SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_BLEND);
icculus@9
  1474
    } else {
icculus@9
  1475
        SDL_SetSurfaceAlphaMod(surface, 0xFF);
icculus@9
  1476
        SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_NONE);
icculus@9
  1477
    }
icculus@9
  1478
    SDL_SetSurfaceRLE(surface, (flag & SDL_RLEACCEL));
icculus@9
  1479
icculus@9
  1480
    return 0;
icculus@9
  1481
}
icculus@9
  1482
icculus@9
  1483
SDL_Surface *
icculus@9
  1484
SDL_DisplayFormat(SDL_Surface * surface)
icculus@9
  1485
{
icculus@9
  1486
    SDL_PixelFormat *format;
icculus@9
  1487
icculus@16
  1488
    if (!PublicSurface) {
icculus@9
  1489
        SDL_SetError("No video mode has been set");
icculus@9
  1490
        return NULL;
icculus@9
  1491
    }
icculus@16
  1492
    format = PublicSurface->format;
icculus@9
  1493
icculus@9
  1494
    /* Set the flags appropriate for copying to display surface */
icculus@9
  1495
    return SDL_ConvertSurface(surface, format, SDL_RLEACCEL);
icculus@9
  1496
}
icculus@9
  1497
icculus@9
  1498
SDL_Surface *
icculus@9
  1499
SDL_DisplayFormatAlpha(SDL_Surface * surface)
icculus@9
  1500
{
icculus@9
  1501
    SDL_PixelFormat *vf;
icculus@9
  1502
    SDL_PixelFormat *format;
icculus@9
  1503
    SDL_Surface *converted;
icculus@9
  1504
    /* default to ARGB8888 */
icculus@9
  1505
    Uint32 amask = 0xff000000;
icculus@9
  1506
    Uint32 rmask = 0x00ff0000;
icculus@9
  1507
    Uint32 gmask = 0x0000ff00;
icculus@9
  1508
    Uint32 bmask = 0x000000ff;
icculus@9
  1509
icculus@16
  1510
    if (!PublicSurface) {
icculus@9
  1511
        SDL_SetError("No video mode has been set");
icculus@9
  1512
        return NULL;
icculus@9
  1513
    }
icculus@16
  1514
    vf = PublicSurface->format;
icculus@9
  1515
icculus@9
  1516
    switch (vf->BytesPerPixel) {
icculus@9
  1517
    case 2:
icculus@9
  1518
        /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}.
icculus@9
  1519
           For anything else (like ARGB4444) it doesn't matter
icculus@9
  1520
           since we have no special code for it anyway */
icculus@9
  1521
        if ((vf->Rmask == 0x1f) &&
icculus@9
  1522
            (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) {
icculus@9
  1523
            rmask = 0xff;
icculus@9
  1524
            bmask = 0xff0000;
icculus@9
  1525
        }
icculus@9
  1526
        break;
icculus@9
  1527
icculus@9
  1528
    case 3:
icculus@9
  1529
    case 4:
icculus@9
  1530
        /* Keep the video format, as long as the high 8 bits are
icculus@9
  1531
           unused or alpha */
icculus@9
  1532
        if ((vf->Rmask == 0xff) && (vf->Bmask == 0xff0000)) {
icculus@9
  1533
            rmask = 0xff;
icculus@9
  1534
            bmask = 0xff0000;
icculus@9
  1535
        }
icculus@9
  1536
        break;
icculus@9
  1537
icculus@9
  1538
    default:
icculus@9
  1539
        /* We have no other optimised formats right now. When/if a new
icculus@9
  1540
           optimised alpha format is written, add the converter here */
icculus@9
  1541
        break;
icculus@9
  1542
    }
icculus@9
  1543
    format = SDL_AllocFormat(SDL_MasksToPixelFormatEnum(32, rmask,
icculus@9
  1544
                                                            gmask,
icculus@9
  1545
                                                            bmask,
icculus@9
  1546
                                                            amask));
icculus@9
  1547
    if (!format) {
icculus@9
  1548
        return NULL;
icculus@9
  1549
    }
icculus@9
  1550
    converted = SDL_ConvertSurface(surface, format, SDL_RLEACCEL);
icculus@9
  1551
    SDL_FreeFormat(format);
icculus@9
  1552
    return converted;
icculus@9
  1553
}
icculus@9
  1554
icculus@9
  1555
int
icculus@9
  1556
SDL_Flip(SDL_Surface * screen)
icculus@9
  1557
{
icculus@9
  1558
    SDL_UpdateRect(screen, 0, 0, 0, 0);
icculus@9
  1559
    return 0;
icculus@9
  1560
}
icculus@9
  1561
icculus@9
  1562
void
icculus@9
  1563
SDL_UpdateRect(SDL_Surface * screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h)
icculus@9
  1564
{
icculus@9
  1565
    if (screen) {
icculus@9
  1566
        SDL_Rect rect;
icculus@9
  1567
icculus@9
  1568
        /* Fill the rectangle */
icculus@9
  1569
        rect.x = (int) x;
icculus@9
  1570
        rect.y = (int) y;
icculus@9
  1571
        rect.w = (int) (w ? w : screen->w);
icculus@9
  1572
        rect.h = (int) (h ? h : screen->h);
icculus@9
  1573
        SDL_UpdateRects(screen, 1, &rect);
icculus@9
  1574
    }
icculus@9
  1575
}
icculus@9
  1576
icculus@9
  1577
void
icculus@9
  1578
SDL_UpdateRects(SDL_Surface * screen, int numrects, SDL_Rect * rects)
icculus@9
  1579
{
icculus@9
  1580
    int i;
icculus@9
  1581
icculus@16
  1582
    if (screen == ShadowSurface) {
icculus@9
  1583
        for (i = 0; i < numrects; ++i) {
icculus@16
  1584
            SDL_BlitSurface(ShadowSurface, &rects[i], VideoSurface,
icculus@9
  1585
                            &rects[i]);
icculus@9
  1586
        }
icculus@9
  1587
icculus@9
  1588
        /* Fall through to video surface update */
icculus@16
  1589
        screen = VideoSurface;
icculus@9
  1590
    }
icculus@16
  1591
    if (screen == VideoSurface) {
icculus@16
  1592
        if (VideoViewport.x || VideoViewport.y) {
icculus@9
  1593
            SDL_Rect *stackrects = SDL_stack_alloc(SDL_Rect, numrects);
icculus@9
  1594
            SDL_Rect *stackrect;
icculus@9
  1595
            const SDL_Rect *rect;
icculus@9
  1596
            
icculus@9
  1597
            /* Offset all the rectangles before updating */
icculus@9
  1598
            for (i = 0; i < numrects; ++i) {
icculus@9
  1599
                rect = &rects[i];
icculus@9
  1600
                stackrect = &stackrects[i];
icculus@16
  1601
                stackrect->x = VideoViewport.x + rect->x;
icculus@16
  1602
                stackrect->y = VideoViewport.y + rect->y;
icculus@9
  1603
                stackrect->w = rect->w;
icculus@9
  1604
                stackrect->h = rect->h;
icculus@9
  1605
            }
icculus@16
  1606
            SDL_UpdateWindowSurfaceRects(VideoWindow, stackrects, numrects);
icculus@9
  1607
            SDL_stack_free(stackrects);
icculus@9
  1608
        } else {
icculus@16
  1609
            SDL_UpdateWindowSurfaceRects(VideoWindow, rects, numrects);
icculus@9
  1610
        }
icculus@9
  1611
    }
icculus@9
  1612
}
icculus@9
  1613
icculus@9
  1614
void
icculus@9
  1615
SDL_WM_SetCaption(const char *title, const char *icon)
icculus@9
  1616
{
icculus@16
  1617
    if (WindowTitle) {
icculus@16
  1618
        SDL_free(WindowTitle);
icculus@9
  1619
    }
icculus@16
  1620
    if (WindowIconTitle) {
icculus@16
  1621
        SDL_free(WindowIconTitle);
icculus@9
  1622
    }
icculus@16
  1623
    WindowTitle = title ? SDL_strdup(title) : NULL;
icculus@16
  1624
    WindowIconTitle = icon ? SDL_strdup(icon) : NULL;
icculus@16
  1625
    SDL_SetWindowTitle(VideoWindow, WindowTitle);
icculus@9
  1626
}
icculus@9
  1627
icculus@9
  1628
void
icculus@9
  1629
SDL_WM_GetCaption(const char **title, const char **icon)
icculus@9
  1630
{
icculus@9
  1631
    if (title) {
icculus@16
  1632
        *title = WindowTitle;
icculus@9
  1633
    }
icculus@9
  1634
    if (icon) {
icculus@16
  1635
        *icon = WindowIconTitle;
icculus@9
  1636
    }
icculus@9
  1637
}
icculus@9
  1638
icculus@9
  1639
void
icculus@9
  1640
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
icculus@9
  1641
{
icculus@9
  1642
    // !!! FIXME: free previous icon?
icculus@16
  1643
    VideoIcon = icon;
icculus@16
  1644
    ++VideoIcon->refcount;
icculus@9
  1645
}
icculus@9
  1646
icculus@9
  1647
int
icculus@9
  1648
SDL_WM_IconifyWindow(void)
icculus@9
  1649
{
icculus@16
  1650
    SDL_MinimizeWindow(VideoWindow);
icculus@9
  1651
    return 0;
icculus@9
  1652
}
icculus@9
  1653
icculus@9
  1654
int
icculus@9
  1655
SDL_WM_ToggleFullScreen(SDL_Surface * surface)
icculus@9
  1656
{
icculus@9
  1657
    int length;
icculus@9
  1658
    void *pixels;
icculus@9
  1659
    Uint8 *src, *dst;
icculus@9
  1660
    int row;
icculus@9
  1661
    int window_w;
icculus@9
  1662
    int window_h;
icculus@9
  1663
icculus@16
  1664
    if (!PublicSurface) {
icculus@9
  1665
        SDL_SetError("SDL_SetVideoMode() hasn't been called");
icculus@9
  1666
        return 0;
icculus@9
  1667
    }
icculus@9
  1668
icculus@9
  1669
    /* Copy the old bits out */
icculus@16
  1670
    length = PublicSurface->w * PublicSurface->format->BytesPerPixel;
icculus@16
  1671
    pixels = SDL_malloc(PublicSurface->h * length);
icculus@16
  1672
    if (pixels && PublicSurface->pixels) {
icculus@16
  1673
        src = (Uint8*)PublicSurface->pixels;
icculus@9
  1674
        dst = (Uint8*)pixels;
icculus@16
  1675
        for (row = 0; row < PublicSurface->h; ++row) {
icculus@9
  1676
            SDL_memcpy(dst, src, length);
icculus@16
  1677
            src += PublicSurface->pitch;
icculus@9
  1678
            dst += length;
icculus@9
  1679
        }
icculus@9
  1680
    }
icculus@9
  1681
icculus@9
  1682
    /* Do the physical mode switch */
icculus@16
  1683
    if (SDL_GetWindowFlags(VideoWindow) & SDL_WINDOW_FULLSCREEN) {
icculus@16
  1684
        if (SDL_SetWindowFullscreen(VideoWindow, 0) < 0) {
icculus@9
  1685
            return 0;
icculus@9
  1686
        }
icculus@16
  1687
        PublicSurface->flags &= ~SDL_FULLSCREEN;
icculus@9
  1688
    } else {
icculus@16
  1689
        if (SDL_SetWindowFullscreen(VideoWindow, 1) < 0) {
icculus@9
  1690
            return 0;
icculus@9
  1691
        }
icculus@16
  1692
        PublicSurface->flags |= SDL_FULLSCREEN;
icculus@9
  1693
    }
icculus@9
  1694
icculus@9
  1695
    /* Recreate the screen surface */
icculus@16
  1696
    WindowSurface = SDL_GetWindowSurface(VideoWindow);
icculus@16
  1697
    if (!WindowSurface) {
icculus@9
  1698
        /* We're totally hosed... */
icculus@9
  1699
        return 0;
icculus@9
  1700
    }
icculus@9
  1701
icculus@9
  1702
    /* Center the public surface in the window surface */
icculus@16
  1703
    SDL_GetWindowSize(VideoWindow, &window_w, &window_h);
icculus@16
  1704
    VideoViewport.x = (window_w - VideoSurface->w)/2;
icculus@16
  1705
    VideoViewport.y = (window_h - VideoSurface->h)/2;
icculus@16
  1706
    VideoViewport.w = VideoSurface->w;
icculus@16
  1707
    VideoViewport.h = VideoSurface->h;
icculus@9
  1708
icculus@9
  1709
    /* Do some shuffling behind the application's back if format changes */
icculus@16
  1710
    if (VideoSurface->format->format != WindowSurface->format->format) {
icculus@16
  1711
        if (ShadowSurface) {
icculus@16
  1712
            if (ShadowSurface->format->format == WindowSurface->format->format) {
icculus@9
  1713
                /* Whee!  We don't need a shadow surface anymore! */
icculus@16
  1714
                VideoSurface->flags &= ~SDL_DONTFREE;
icculus@16
  1715
                SDL_FreeSurface(VideoSurface);
icculus@16
  1716
                SDL_free(ShadowSurface->pixels);
icculus@16
  1717
                VideoSurface = ShadowSurface;
icculus@16
  1718
                VideoSurface->flags |= SDL_PREALLOC;
icculus@16
  1719
                ShadowSurface = NULL;
icculus@9
  1720
            } else {
icculus@9
  1721
                /* No problem, just change the video surface format */
icculus@16
  1722
                SDL_FreeFormat(VideoSurface->format);
icculus@16
  1723
                VideoSurface->format = WindowSurface->format;
icculus@16
  1724
                VideoSurface->format->refcount++;
icculus@16
  1725
                SDL_InvalidateMap(ShadowSurface->map);
icculus@9
  1726
            }
icculus@9
  1727
        } else {
icculus@9
  1728
            /* We can make the video surface the shadow surface */
icculus@16
  1729
            ShadowSurface = VideoSurface;
icculus@16
  1730
            ShadowSurface->pitch = SDL_CalculatePitch(ShadowSurface);
icculus@16
  1731
            ShadowSurface->pixels = SDL_malloc(ShadowSurface->h * ShadowSurface->pitch);
icculus@16
  1732
            if (!ShadowSurface->pixels) {
icculus@9
  1733
                /* Uh oh, we're hosed */
icculus@16
  1734
                ShadowSurface = NULL;
icculus@9
  1735
                return 0;
icculus@9
  1736
            }
icculus@16
  1737
            ShadowSurface->flags &= ~SDL_PREALLOC;
icculus@9
  1738
icculus@16
  1739
            VideoSurface = SDL_CreateRGBSurfaceFrom(NULL, 0, 0, 32, 0, 0, 0, 0, 0);
icculus@16
  1740
            VideoSurface->flags = ShadowSurface->flags;
icculus@16
  1741
            VideoSurface->flags |= SDL_PREALLOC;
icculus@16
  1742
            SDL_FreeFormat(VideoSurface->format);
icculus@16
  1743
            VideoSurface->format = WindowSurface->format;
icculus@16
  1744
            VideoSurface->format->refcount++;
icculus@16
  1745
            VideoSurface->w = ShadowSurface->w;
icculus@16
  1746
            VideoSurface->h = ShadowSurface->h;
icculus@9
  1747
        }
icculus@9
  1748
    }
icculus@9
  1749
icculus@9
  1750
    /* Update the video surface */
icculus@16
  1751
    VideoSurface->pitch = WindowSurface->pitch;
icculus@16
  1752
    VideoSurface->pixels = (void *)((Uint8 *)WindowSurface->pixels +
icculus@16
  1753
        VideoViewport.y * VideoSurface->pitch +
icculus@16
  1754
        VideoViewport.x  * VideoSurface->format->BytesPerPixel);
icculus@16
  1755
    SDL_SetClipRect(VideoSurface, NULL);
icculus@9
  1756
icculus@9
  1757
    /* Copy the old bits back */
icculus@9
  1758
    if (pixels) {
icculus@9
  1759
        src = (Uint8*)pixels;
icculus@16
  1760
        dst = (Uint8*)PublicSurface->pixels;
icculus@16
  1761
        for (row = 0; row < PublicSurface->h; ++row) {
icculus@9
  1762
            SDL_memcpy(dst, src, length);
icculus@9
  1763
            src += length;
icculus@16
  1764
            dst += PublicSurface->pitch;
icculus@9
  1765
        }
icculus@16
  1766
        SDL_Flip(PublicSurface);
icculus@9
  1767
        SDL_free(pixels);
icculus@9
  1768
    }
icculus@9
  1769
icculus@9
  1770
    /* We're done! */
icculus@9
  1771
    return 1;
icculus@9
  1772
}
icculus@9
  1773
icculus@9
  1774
SDL_GrabMode
icculus@9
  1775
SDL_WM_GrabInput(SDL_GrabMode mode)
icculus@9
  1776
{
icculus@9
  1777
    if (mode != SDL_GRAB_QUERY) {
icculus@16
  1778
        SDL_SetWindowGrab(VideoWindow, mode);
icculus@9
  1779
    }
icculus@16
  1780
    return (SDL_GrabMode) SDL_GetWindowGrab(VideoWindow);
icculus@9
  1781
}
icculus@9
  1782
icculus@9
  1783
void
icculus@9
  1784
SDL_WarpMouse(Uint16 x, Uint16 y)
icculus@9
  1785
{
icculus@16
  1786
    SDL_WarpMouseInWindow(VideoWindow, x, y);
icculus@9
  1787
}
icculus@9
  1788
icculus@9
  1789
Uint8
icculus@9
  1790
SDL_GetAppState(void)
icculus@9
  1791
{
icculus@9
  1792
    Uint8 state = 0;
icculus@9
  1793
    Uint32 flags = 0;
icculus@9
  1794
icculus@16
  1795
    flags = SDL_GetWindowFlags(VideoWindow);
icculus@9
  1796
    if ((flags & SDL_WINDOW_SHOWN) && !(flags & SDL_WINDOW_MINIMIZED)) {
icculus@9
  1797
        state |= SDL_APPACTIVE;
icculus@9
  1798
    }
icculus@9
  1799
    if (flags & SDL_WINDOW_INPUT_FOCUS) {
icculus@9
  1800
        state |= SDL_APPINPUTFOCUS;
icculus@9
  1801
    }
icculus@9
  1802
    if (flags & SDL_WINDOW_MOUSE_FOCUS) {
icculus@9
  1803
        state |= SDL_APPMOUSEFOCUS;
icculus@9
  1804
    }
icculus@9
  1805
    return state;
icculus@9
  1806
}
icculus@9
  1807
icculus@9
  1808
const SDL_version *
icculus@9
  1809
SDL_Linked_Version(void)
icculus@9
  1810
{
icculus@9
  1811
    static SDL_version version;
icculus@9
  1812
    SDL_VERSION(&version);
icculus@9
  1813
    return &version;
icculus@9
  1814
}
icculus@9
  1815
icculus@9
  1816
int
icculus@9
  1817
SDL_SetPalette(SDL_Surface * surface, int flags, const SDL_Color * colors,
icculus@9
  1818
               int firstcolor, int ncolors)
icculus@9
  1819
{
icculus@9
  1820
    return SDL_SetColors(surface, colors, firstcolor, ncolors);
icculus@9
  1821
}
icculus@9
  1822
icculus@9
  1823
int
icculus@9
  1824
SDL_SetColors(SDL_Surface * surface, const SDL_Color * colors, int firstcolor,
icculus@9
  1825
              int ncolors)
icculus@9
  1826
{
icculus@9
  1827
    if (SDL_SetPaletteColors
icculus@9
  1828
        (surface->format->palette, colors, firstcolor, ncolors) == 0) {
icculus@9
  1829
        return 1;
icculus@9
  1830
    } else {
icculus@9
  1831
        return 0;
icculus@9
  1832
    }
icculus@9
  1833
}
icculus@9
  1834
icculus@9
  1835
int
icculus@9
  1836
SDL_GetWMInfo(SDL_SysWMinfo * info)
icculus@9
  1837
{
icculus@16
  1838
    return SDL_GetWindowWMInfo(VideoWindow, info);
icculus@9
  1839
}
icculus@9
  1840
icculus@9
  1841
#if 0
icculus@9
  1842
void
icculus@9
  1843
SDL_MoveCursor(int x, int y)
icculus@9
  1844
{
icculus@9
  1845
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  1846
icculus@9
  1847
    /* Erase and update the current mouse position */
icculus@9
  1848
    if (SHOULD_DRAWCURSOR(SDL_cursorstate)) {
icculus@9
  1849
        /* Erase and redraw mouse cursor in new position */
icculus@9
  1850
        SDL_LockCursor();
icculus@16
  1851
        SDL_EraseCursor(VideoSurface);
icculus@9
  1852
        SDL_cursor->area.x = (x - SDL_cursor->hot_x);
icculus@9
  1853
        SDL_cursor->area.y = (y - SDL_cursor->hot_y);
icculus@16
  1854
        SDL_DrawCursor(VideoSurface);
icculus@9
  1855
        SDL_UnlockCursor();
icculus@9
  1856
    } else if (_this->MoveWMCursor) {
icculus@9
  1857
        _this->MoveWMCursor(_this, x, y);
icculus@9
  1858
    }
icculus@9
  1859
}
icculus@9
  1860
icculus@9
  1861
/* Keep track of the current cursor colors */
icculus@9
  1862
static int palette_changed = 1;
icculus@9
  1863
static Uint8 pixels8[2];
icculus@9
  1864
icculus@9
  1865
void
icculus@9
  1866
SDL_CursorPaletteChanged(void)
icculus@9
  1867
{
icculus@9
  1868
    palette_changed = 1;
icculus@9
  1869
}
icculus@9
  1870
icculus@9
  1871
void
icculus@9
  1872
SDL_MouseRect(SDL_Rect * area)
icculus@9
  1873
{
icculus@9
  1874
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  1875
    int clip_diff;
icculus@9
  1876
icculus@9
  1877
    *area = SDL_cursor->area;
icculus@9
  1878
    if (area->x < 0) {
icculus@9
  1879
        area->w += area->x;
icculus@9
  1880
        area->x = 0;
icculus@9
  1881
    }
icculus@9
  1882
    if (area->y < 0) {
icculus@9
  1883
        area->h += area->y;
icculus@9
  1884
        area->y = 0;
icculus@9
  1885
    }
icculus@16
  1886
    clip_diff = (area->x + area->w) - VideoSurface->w;
icculus@9
  1887
    if (clip_diff > 0) {
icculus@9
  1888
        area->w = area->w < clip_diff ? 0 : area->w - clip_diff;
icculus@9
  1889
    }
icculus@16
  1890
    clip_diff = (area->y + area->h) - VideoSurface->h;
icculus@9
  1891
    if (clip_diff > 0) {
icculus@9
  1892
        area->h = area->h < clip_diff ? 0 : area->h - clip_diff;
icculus@9
  1893
    }
icculus@9
  1894
}
icculus@9
  1895
icculus@9
  1896
static void
icculus@9
  1897
SDL_DrawCursorFast(SDL_Surface * screen, SDL_Rect * area)
icculus@9
  1898
{
icculus@9
  1899
    const Uint32 pixels[2] = { 0xFFFFFFFF, 0x00000000 };
icculus@9
  1900
    int i, w, h;
icculus@9
  1901
    Uint8 *data, datab;
icculus@9
  1902
    Uint8 *mask, maskb;
icculus@9
  1903
icculus@9
  1904
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
icculus@9
  1905
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
icculus@9
  1906
    switch (screen->format->BytesPerPixel) {
icculus@9
  1907
icculus@9
  1908
    case 1:
icculus@9
  1909
        {
icculus@9
  1910
            Uint8 *dst;
icculus@9
  1911
            int dstskip;
icculus@9
  1912
icculus@9
  1913
            if (palette_changed) {
icculus@9
  1914
                pixels8[0] =
icculus@9
  1915
                    (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
icculus@9
  1916
                pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
icculus@9
  1917
                palette_changed = 0;
icculus@9
  1918
            }
icculus@9
  1919
            dst = (Uint8 *) screen->pixels +
icculus@9
  1920
                (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  1921
                SDL_cursor->area.x;
icculus@9
  1922
            dstskip = screen->pitch - area->w;
icculus@9
  1923
icculus@9
  1924
            for (h = area->h; h; h--) {
icculus@9
  1925
                for (w = area->w / 8; w; w--) {
icculus@9
  1926
                    maskb = *mask++;
icculus@9
  1927
                    datab = *data++;
icculus@9
  1928
                    for (i = 0; i < 8; ++i) {
icculus@9
  1929
                        if (maskb & 0x80) {
icculus@9
  1930
                            *dst = pixels8[datab >> 7];
icculus@9
  1931
                        }
icculus@9
  1932
                        maskb <<= 1;
icculus@9
  1933
                        datab <<= 1;
icculus@9
  1934
                        dst++;
icculus@9
  1935
                    }
icculus@9
  1936
                }
icculus@9
  1937
                dst += dstskip;
icculus@9
  1938
            }
icculus@9
  1939
        }
icculus@9
  1940
        break;
icculus@9
  1941
icculus@9
  1942
    case 2:
icculus@9
  1943
        {
icculus@9
  1944
            Uint16 *dst;
icculus@9
  1945
            int dstskip;
icculus@9
  1946
icculus@9
  1947
            dst = (Uint16 *) screen->pixels +
icculus@9
  1948
                (SDL_cursor->area.y + area->y) * screen->pitch / 2 +
icculus@9
  1949
                SDL_cursor->area.x;
icculus@9
  1950
            dstskip = (screen->pitch / 2) - area->w;
icculus@9
  1951
icculus@9
  1952
            for (h = area->h; h; h--) {
icculus@9
  1953
                for (w = area->w / 8; w; w--) {
icculus@9
  1954
                    maskb = *mask++;
icculus@9
  1955
                    datab = *data++;
icculus@9
  1956
                    for (i = 0; i < 8; ++i) {
icculus@9
  1957
                        if (maskb & 0x80) {
icculus@9
  1958
                            *dst = (Uint16) pixels[datab >> 7];
icculus@9
  1959
                        }
icculus@9
  1960
                        maskb <<= 1;
icculus@9
  1961
                        datab <<= 1;
icculus@9
  1962
                        dst++;
icculus@9
  1963
                    }
icculus@9
  1964
                }
icculus@9
  1965
                dst += dstskip;
icculus@9
  1966
            }
icculus@9
  1967
        }
icculus@9
  1968
        break;
icculus@9
  1969
icculus@9
  1970
    case 3:
icculus@9
  1971
        {
icculus@9
  1972
            Uint8 *dst;
icculus@9
  1973
            int dstskip;
icculus@9
  1974
icculus@9
  1975
            dst = (Uint8 *) screen->pixels +
icculus@9
  1976
                (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  1977
                SDL_cursor->area.x * 3;
icculus@9
  1978
            dstskip = screen->pitch - area->w * 3;
icculus@9
  1979
icculus@9
  1980
            for (h = area->h; h; h--) {
icculus@9
  1981
                for (w = area->w / 8; w; w--) {
icculus@9
  1982
                    maskb = *mask++;
icculus@9
  1983
                    datab = *data++;
icculus@9
  1984
                    for (i = 0; i < 8; ++i) {
icculus@9
  1985
                        if (maskb & 0x80) {
icculus@9
  1986
                            SDL_memset(dst, pixels[datab >> 7], 3);
icculus@9
  1987
                        }
icculus@9
  1988
                        maskb <<= 1;
icculus@9
  1989
                        datab <<= 1;
icculus@9
  1990
                        dst += 3;
icculus@9
  1991
                    }
icculus@9
  1992
                }
icculus@9
  1993
                dst += dstskip;
icculus@9
  1994
            }
icculus@9
  1995
        }
icculus@9
  1996
        break;
icculus@9
  1997
icculus@9
  1998
    case 4:
icculus@9
  1999
        {
icculus@9
  2000
            Uint32 *dst;
icculus@9
  2001
            int dstskip;
icculus@9
  2002
icculus@9
  2003
            dst = (Uint32 *) screen->pixels +
icculus@9
  2004
                (SDL_cursor->area.y + area->y) * screen->pitch / 4 +
icculus@9
  2005
                SDL_cursor->area.x;
icculus@9
  2006
            dstskip = (screen->pitch / 4) - area->w;
icculus@9
  2007
icculus@9
  2008
            for (h = area->h; h; h--) {
icculus@9
  2009
                for (w = area->w / 8; w; w--) {
icculus@9
  2010
                    maskb = *mask++;
icculus@9
  2011
                    datab = *data++;
icculus@9
  2012
                    for (i = 0; i < 8; ++i) {
icculus@9
  2013
                        if (maskb & 0x80) {
icculus@9
  2014
                            *dst = pixels[datab >> 7];
icculus@9
  2015
                        }
icculus@9
  2016
                        maskb <<= 1;
icculus@9
  2017
                        datab <<= 1;
icculus@9
  2018
                        dst++;
icculus@9
  2019
                    }
icculus@9
  2020
                }
icculus@9
  2021
                dst += dstskip;
icculus@9
  2022
            }
icculus@9
  2023
        }
icculus@9
  2024
        break;
icculus@9
  2025
    }
icculus@9
  2026
}
icculus@9
  2027
icculus@9
  2028
static void
icculus@9
  2029
SDL_DrawCursorSlow(SDL_Surface * screen, SDL_Rect * area)
icculus@9
  2030
{
icculus@9
  2031
    const Uint32 pixels[2] = { 0xFFFFFF, 0x000000 };
icculus@9
  2032
    int h;
icculus@9
  2033
    int x, minx, maxx;
icculus@9
  2034
    Uint8 *data, datab = 0;
icculus@9
  2035
    Uint8 *mask, maskb = 0;
icculus@9
  2036
    Uint8 *dst;
icculus@9
  2037
    int dstbpp, dstskip;
icculus@9
  2038
icculus@9
  2039
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
icculus@9
  2040
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
icculus@9
  2041
    dstbpp = screen->format->BytesPerPixel;
icculus@9
  2042
    dst = (Uint8 *) screen->pixels +
icculus@9
  2043
        (SDL_cursor->area.y + area->y) * screen->pitch +
icculus@9
  2044
        SDL_cursor->area.x * dstbpp;
icculus@9
  2045
    dstskip = screen->pitch - SDL_cursor->area.w * dstbpp;
icculus@9
  2046
icculus@9
  2047
    minx = area->x;
icculus@9
  2048
    maxx = area->x + area->w;
icculus@9
  2049
    if (screen->format->BytesPerPixel == 1) {
icculus@9
  2050
        if (palette_changed) {
icculus@9
  2051
            pixels8[0] = (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
icculus@9
  2052
            pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
icculus@9
  2053
            palette_changed = 0;
icculus@9
  2054
        }
icculus@9
  2055
        for (h = area->h; h; h--) {
icculus@9
  2056
            for (x = 0; x < SDL_cursor->area.w; ++x) {
icculus@9
  2057
                if ((x % 8) == 0) {
icculus@9
  2058
                    maskb = *mask++;
icculus@9
  2059
                    datab = *data++;
icculus@9
  2060
                }
icculus@9
  2061
                if ((x >= minx) && (x < maxx)) {
icculus@9
  2062
                    if (maskb & 0x80) {
icculus@9
  2063
                        SDL_memset(dst, pixels8[datab >> 7], dstbpp);
icculus@9
  2064
                    }
icculus@9
  2065
                }
icculus@9
  2066
                maskb <<= 1;
icculus@9
  2067
                datab <<= 1;
icculus@9
  2068
                dst += dstbpp;
icculus@9
  2069
            }
icculus@9
  2070
            dst += dstskip;
icculus@9
  2071
        }
icculus@9
  2072
    } else {
icculus@9
  2073
        for (h = area->h; h; h--) {
icculus@9
  2074
            for (x = 0; x < SDL_cursor->area.w; ++x) {
icculus@9
  2075
                if ((x % 8) == 0) {
icculus@9
  2076
                    maskb = *mask++;
icculus@9
  2077
                    datab = *data++;
icculus@9
  2078
                }
icculus@9
  2079
                if ((x >= minx) && (x < maxx)) {
icculus@9
  2080
                    if (maskb & 0x80) {
icculus@9
  2081
                        SDL_memset(dst, pixels[datab >> 7], dstbpp);
icculus@9
  2082
                    }
icculus@9
  2083
                }
icculus@9
  2084
                maskb <<= 1;
icculus@9
  2085
                datab <<= 1;
icculus@9
  2086
                dst += dstbpp;
icculus@9
  2087
            }
icculus@9
  2088
            dst += dstskip;
icculus@9
  2089
        }
icculus@9
  2090
    }
icculus@9
  2091
}
icculus@9
  2092
icculus@9
  2093
/* This handles the ugly work of converting the saved cursor background from
icculus@9
  2094
   the pixel format of the shadow surface to that of the video surface.
icculus@9
  2095
   This is only necessary when blitting from a shadow surface of a different
icculus@9
  2096
   pixel format than the video surface, and using a software rendered cursor.
icculus@9
  2097
*/
icculus@9
  2098
static void
icculus@9
  2099
SDL_ConvertCursorSave(SDL_Surface * screen, int w, int h)
icculus@9
  2100
{
icculus@9
  2101
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2102
    SDL_BlitInfo info;
icculus@9
  2103
    SDL_loblit RunBlit;
icculus@9
  2104
icculus@9
  2105
    /* Make sure we can steal the blit mapping */
icculus@16
  2106
    if (screen->map->dst != VideoSurface) {
icculus@9
  2107
        return;
icculus@9
  2108
    }
icculus@9
  2109
icculus@9
  2110
    /* Set up the blit information */
icculus@9
  2111
    info.s_pixels = SDL_cursor->save[1];
icculus@9
  2112
    info.s_width = w;
icculus@9
  2113
    info.s_height = h;
icculus@9
  2114
    info.s_skip = 0;
icculus@9
  2115
    info.d_pixels = SDL_cursor->save[0];
icculus@9
  2116
    info.d_width = w;
icculus@9
  2117
    info.d_height = h;
icculus@9
  2118
    info.d_skip = 0;
icculus@9
  2119
    info.aux_data = screen->map->sw_data->aux_data;
icculus@9
  2120
    info.src = screen->format;
icculus@9
  2121
    info.table = screen->map->table;
icculus@16
  2122
    info.dst = VideoSurface->format;
icculus@9
  2123
    RunBlit = screen->map->sw_data->blit;
icculus@9
  2124
icculus@9
  2125
    /* Run the actual software blit */
icculus@9
  2126
    RunBlit(&info);
icculus@9
  2127
}
icculus@9
  2128
icculus@9
  2129
void
icculus@9
  2130
SDL_DrawCursorNoLock(SDL_Surface * screen)
icculus@9
  2131
{
icculus@9
  2132
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2133
    SDL_Rect area;
icculus@9
  2134
icculus@9
  2135
    /* Get the mouse rectangle, clipped to the screen */
icculus@9
  2136
    SDL_MouseRect(&area);
icculus@9
  2137
    if ((area.w == 0) || (area.h == 0)) {
icculus@9
  2138
        return;
icculus@9
  2139
    }
icculus@9
  2140
icculus@9
  2141
    /* Copy mouse background */
icculus@9
  2142
    {
icculus@9
  2143
        int w, h, screenbpp;
icculus@9
  2144
        Uint8 *src, *dst;
icculus@9
  2145
icculus@9
  2146
        /* Set up the copy pointers */
icculus@9
  2147
        screenbpp = screen->format->BytesPerPixel;
icculus@16
  2148
        if ((screen == VideoSurface) ||
icculus@16
  2149
            FORMAT_EQUAL(screen->format, VideoSurface->format)) {
icculus@9
  2150
            dst = SDL_cursor->save[0];
icculus@9
  2151
        } else {
icculus@9
  2152
            dst = SDL_cursor->save[1];
icculus@9
  2153
        }
icculus@9
  2154
        src = (Uint8 *) screen->pixels + area.y * screen->pitch +
icculus@9
  2155
            area.x * screenbpp;
icculus@9
  2156
icculus@9
  2157
        /* Perform the copy */
icculus@9
  2158
        w = area.w * screenbpp;
icculus@9
  2159
        h = area.h;
icculus@9
  2160
        while (h--) {
icculus@9
  2161
            SDL_memcpy(dst, src, w);
icculus@9
  2162
            dst += w;
icculus@9
  2163
            src += screen->pitch;
icculus@9
  2164
        }
icculus@9
  2165
    }
icculus@9
  2166
icculus@9
  2167
    /* Draw the mouse cursor */
icculus@9
  2168
    area.x -= SDL_cursor->area.x;
icculus@9
  2169
    area.y -= SDL_cursor->area.y;
icculus@9
  2170
    if ((area.x == 0) && (area.w == SDL_cursor->area.w)) {
icculus@9
  2171
        SDL_DrawCursorFast(screen, &area);
icculus@9
  2172
    } else {
icculus@9
  2173
        SDL_DrawCursorSlow(screen, &area);
icculus@9
  2174
    }
icculus@9
  2175
}
icculus@9
  2176
icculus@9
  2177
void
icculus@9
  2178
SDL_DrawCursor(SDL_Surface * screen)
icculus@9
  2179
{
icculus@9
  2180
    /* Lock the screen if necessary */
icculus@9
  2181
    if (screen == NULL) {
icculus@9
  2182
        return;
icculus@9
  2183
    }
icculus@9
  2184
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2185
        if (SDL_LockSurface(screen) < 0) {
icculus@9
  2186
            return;
icculus@9
  2187
        }
icculus@9
  2188
    }
icculus@9
  2189
icculus@9
  2190
    SDL_DrawCursorNoLock(screen);
icculus@9
  2191
icculus@9
  2192
    /* Unlock the screen and update if necessary */
icculus@9
  2193
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2194
        SDL_UnlockSurface(screen);
icculus@9
  2195
    }
icculus@9
  2196
    if (screen->flags & SDL_SCREEN_SURFACE) {
icculus@9
  2197
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2198
        SDL_Window *window;
icculus@9
  2199
        SDL_Rect area;
icculus@9
  2200
icculus@9
  2201
        window = SDL_GetWindowFromSurface(screen);
icculus@9
  2202
        if (!window) {
icculus@9
  2203
            return;
icculus@9
  2204
        }
icculus@9
  2205
icculus@9
  2206
        SDL_MouseRect(&area);
icculus@9
  2207
icculus@9
  2208
        if (_this->UpdateWindowSurface) {
icculus@9
  2209
            _this->UpdateWindowSurface(_this, window, 1, &area);
icculus@9
  2210
        }
icculus@9
  2211
    }
icculus@9
  2212
}
icculus@9
  2213
icculus@9
  2214
void
icculus@9
  2215
SDL_EraseCursorNoLock(SDL_Surface * screen)
icculus@9
  2216
{
icculus@9
  2217
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2218
    SDL_Window *window;
icculus@9
  2219
    SDL_Rect area;
icculus@9
  2220
icculus@9
  2221
    /* Get the window associated with the surface */
icculus@9
  2222
    window = SDL_GetWindowFromSurface(screen);
icculus@9
  2223
    if (!window || !window->surface) {
icculus@9
  2224
        return;
icculus@9
  2225
    }
icculus@9
  2226
icculus@9
  2227
    /* Get the mouse rectangle, clipped to the screen */
icculus@9
  2228
    SDL_MouseRect(&area);
icculus@9
  2229
    if ((area.w == 0) || (area.h == 0)) {
icculus@9
  2230
        return;
icculus@9
  2231
    }
icculus@9
  2232
icculus@9
  2233
    /* Copy mouse background */
icculus@9
  2234
    {
icculus@9
  2235
        int w, h, screenbpp;
icculus@9
  2236
        Uint8 *src, *dst;
icculus@9
  2237
icculus@9
  2238
        /* Set up the copy pointers */
icculus@9
  2239
        screenbpp = screen->format->BytesPerPixel;
icculus@9
  2240
        if ((screen->flags & SDL_SCREEN_SURFACE) ||
icculus@9
  2241
            FORMAT_EQUAL(screen->format, window->surface->format)) {
icculus@9
  2242
            src = SDL_cursor->save[0];
icculus@9
  2243
        } else {
icculus@9
  2244
            src = SDL_cursor->save[1];
icculus@9
  2245
        }
icculus@9
  2246
        dst = (Uint8 *) screen->pixels + area.y * screen->pitch +
icculus@9
  2247
            area.x * screenbpp;
icculus@9
  2248
icculus@9
  2249
        /* Perform the copy */
icculus@9
  2250
        w = area.w * screenbpp;
icculus@9
  2251
        h = area.h;
icculus@9
  2252
        while (h--) {
icculus@9
  2253
            SDL_memcpy(dst, src, w);
icculus@9
  2254
            src += w;
icculus@9
  2255
            dst += screen->pitch;
icculus@9
  2256
        }
icculus@9
  2257
icculus@9
  2258
        /* Perform pixel conversion on cursor background */
icculus@9
  2259
        if (src > SDL_cursor->save[1]) {
icculus@9
  2260
            SDL_ConvertCursorSave(screen, area.w, area.h);
icculus@9
  2261
        }
icculus@9
  2262
    }
icculus@9
  2263
}
icculus@9
  2264
icculus@9
  2265
void
icculus@9
  2266
SDL_EraseCursor(SDL_Surface * screen)
icculus@9
  2267
{
icculus@9
  2268
    /* Lock the screen if necessary */
icculus@9
  2269
    if (screen == NULL) {
icculus@9
  2270
        return;
icculus@9
  2271
    }
icculus@9
  2272
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2273
        if (SDL_LockSurface(screen) < 0) {
icculus@9
  2274
            return;
icculus@9
  2275
        }
icculus@9
  2276
    }
icculus@9
  2277
icculus@9
  2278
    SDL_EraseCursorNoLock(screen);
icculus@9
  2279
icculus@9
  2280
    /* Unlock the screen and update if necessary */
icculus@9
  2281
    if (SDL_MUSTLOCK(screen)) {
icculus@9
  2282
        SDL_UnlockSurface(screen);
icculus@9
  2283
    }
icculus@9
  2284
    if (screen->flags & SDL_SCREEN_SURFACE) {
icculus@9
  2285
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
icculus@9
  2286
        SDL_Window *window;
icculus@9
  2287
        SDL_Rect area;
icculus@9
  2288
icculus@9
  2289
        window = SDL_GetWindowFromSurface(screen);
icculus@9
  2290
        if (!window) {
icculus@9
  2291
            return;
icculus@9
  2292
        }
icculus@9
  2293
icculus@9
  2294
        SDL_MouseRect(&area);
icculus@9
  2295
icculus@9
  2296
        if (_this->UpdateWindowSurface) {
icculus@9
  2297
            _this->UpdateWindowSurface(_this, window, 1, &area);
icculus@9
  2298
        }
icculus@9
  2299
    }
icculus@9
  2300
}
icculus@9
  2301
icculus@9
  2302
/* Reset the cursor on video mode change
icculus@9
  2303
   FIXME:  Keep track of all cursors, and reset them all.
icculus@9
  2304
 */
icculus@9
  2305
void
icculus@9
  2306
SDL_ResetCursor(void)
icculus@9
  2307
{
icculus@9
  2308
    int savelen;
icculus@9
  2309
icculus@9
  2310
    if (SDL_cursor) {
icculus@9
  2311
        savelen = SDL_cursor->area.w * 4 * SDL_cursor->area.h;
icculus@9
  2312
        SDL_cursor->area.x = 0;
icculus@9
  2313
        SDL_cursor->area.y = 0;
icculus@9
  2314
        SDL_memset(SDL_cursor->save[0], 0, savelen);
icculus@9
  2315
    }
icculus@9
  2316
}
icculus@9
  2317
#endif
icculus@9
  2318
icculus@9
  2319
struct private_yuvhwdata
icculus@9
  2320
{
icculus@9
  2321
    SDL_SW_YUVTexture *texture;
icculus@9
  2322
    SDL_Surface *display;
icculus@9
  2323
    Uint32 display_format;
icculus@9
  2324
};
icculus@9
  2325
icculus@9
  2326
SDL_Overlay *
icculus@9
  2327
SDL_CreateYUVOverlay(int w, int h, Uint32 format, SDL_Surface * display)
icculus@9
  2328
{
icculus@9
  2329
    SDL_Overlay *overlay;
icculus@9
  2330
    Uint32 texture_format;
icculus@9
  2331
    SDL_SW_YUVTexture *texture;
icculus@9
  2332
icculus@9
  2333
    if ((display->flags & SDL_OPENGL) == SDL_OPENGL) {
icculus@9
  2334
        SDL_SetError("YUV overlays are not supported in OpenGL mode");
icculus@9
  2335
        return NULL;
icculus@9
  2336
    }
icculus@9
  2337
icculus@16
  2338
    if (display != PublicSurface) {
icculus@9
  2339
        SDL_SetError("YUV display is only supported on the screen surface");
icculus@9
  2340
        return NULL;
icculus@9
  2341
    }
icculus@9
  2342
icculus@9
  2343
    switch (format) {
icculus@9
  2344
    case SDL_YV12_OVERLAY:
icculus@9
  2345
        texture_format = SDL_PIXELFORMAT_YV12;
icculus@9
  2346
        break;
icculus@9
  2347
    case SDL_IYUV_OVERLAY:
icculus@9
  2348
        texture_format = SDL_PIXELFORMAT_IYUV;
icculus@9
  2349
        break;
icculus@9
  2350
    case SDL_YUY2_OVERLAY:
icculus@9
  2351
        texture_format = SDL_PIXELFORMAT_YUY2;
icculus@9
  2352
        break;
icculus@9
  2353
    case SDL_UYVY_OVERLAY:
icculus@9
  2354
        texture_format = SDL_PIXELFORMAT_UYVY;
icculus@9
  2355
        break;
icculus@9
  2356
    case SDL_YVYU_OVERLAY:
icculus@9
  2357
        texture_format = SDL_PIXELFORMAT_YVYU;
icculus@9
  2358
        break;
icculus@9
  2359
    default:
icculus@9
  2360
        SDL_SetError("Unknown YUV format");
icculus@9
  2361
        return NULL;
icculus@9
  2362
    }
icculus@9
  2363
icculus@9
  2364
    overlay = (SDL_Overlay *) SDL_malloc(sizeof(*overlay));
icculus@9
  2365
    if (!overlay) {
icculus@9
  2366
        SDL_OutOfMemory();
icculus@9
  2367
        return NULL;
icculus@9
  2368
    }
icculus@9
  2369
    SDL_zerop(overlay);
icculus@9
  2370
icculus@9
  2371
    overlay->hwdata =
icculus@9
  2372
        (struct private_yuvhwdata *) SDL_malloc(sizeof(*overlay->hwdata));
icculus@9
  2373
    if (!overlay->hwdata) {
icculus@9
  2374
        SDL_free(overlay);
icculus@9
  2375
        SDL_OutOfMemory();
icculus@9
  2376
        return NULL;
icculus@9
  2377
    }
icculus@9
  2378
icculus@9
  2379
    texture = SDL_SW_CreateYUVTexture(texture_format, w, h);
icculus@9
  2380
    if (!texture) {
icculus@9
  2381
        SDL_free(overlay->hwdata);
icculus@9
  2382
        SDL_free(overlay);
icculus@9
  2383
        return NULL;
icculus@9
  2384
    }
icculus@9
  2385
    overlay->hwdata->texture = texture;
icculus@9
  2386
    overlay->hwdata->display = NULL;
icculus@9
  2387
    overlay->hwdata->display_format = SDL_PIXELFORMAT_UNKNOWN;
icculus@9
  2388
icculus@9
  2389
    overlay->format = format;
icculus@9
  2390
    overlay->w = w;
icculus@9
  2391
    overlay->h = h;
icculus@9
  2392
    if (format == SDL_YV12_OVERLAY || format == SDL_IYUV_OVERLAY) {
icculus@9
  2393
        overlay->planes = 3;
icculus@9
  2394
    } else {
icculus@9
  2395
        overlay->planes = 1;
icculus@9
  2396
    }
icculus@9
  2397
    overlay->pitches = texture->pitches;
icculus@9
  2398
    overlay->pixels = texture->planes;
icculus@9
  2399
icculus@9
  2400
    return overlay;
icculus@9
  2401
}
icculus@9
  2402
icculus@9
  2403
int
icculus@9
  2404
SDL_LockYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2405
{
icculus@9
  2406
    SDL_Rect rect;
icculus@9
  2407
    void *pixels;
icculus@9
  2408
    int pitch;
icculus@9
  2409
icculus@9
  2410
    if (!overlay) {
icculus@9
  2411
        SDL_SetError("Passed a NULL overlay");
icculus@9
  2412
        return -1;
icculus@9
  2413
    }
icculus@9
  2414
icculus@9
  2415
    rect.x = 0;
icculus@9
  2416
    rect.y = 0;
icculus@9
  2417
    rect.w = overlay->w;
icculus@9
  2418
    rect.h = overlay->h;
icculus@9
  2419
icculus@9
  2420
    if (SDL_SW_LockYUVTexture(overlay->hwdata->texture, &rect, &pixels, &pitch) < 0) {
icculus@9
  2421
        return -1;
icculus@9
  2422
    }
icculus@9
  2423
icculus@9
  2424
    overlay->pixels[0] = (Uint8 *) pixels;
icculus@9
  2425
    overlay->pitches[0] = pitch;
icculus@9
  2426
    switch (overlay->format) {
icculus@9
  2427
    case SDL_YV12_OVERLAY:
icculus@9
  2428
    case SDL_IYUV_OVERLAY:
icculus@9
  2429
        overlay->pitches[1] = pitch / 2;
icculus@9
  2430
        overlay->pitches[2] = pitch / 2;
icculus@9
  2431
        overlay->pixels[1] =
icculus@9
  2432
            overlay->pixels[0] + overlay->pitches[0] * overlay->h;
icculus@9
  2433
        overlay->pixels[2] =
icculus@9
  2434
            overlay->pixels[1] + overlay->pitches[1] * overlay->h / 2;
icculus@9
  2435
        break;
icculus@9
  2436
    case SDL_YUY2_OVERLAY:
icculus@9
  2437
    case SDL_UYVY_OVERLAY:
icculus@9
  2438
    case SDL_YVYU_OVERLAY:
icculus@9
  2439
        break;
icculus@9
  2440
    }
icculus@9
  2441
    return 0;
icculus@9
  2442
}
icculus@9
  2443
icculus@9
  2444
void
icculus@9
  2445
SDL_UnlockYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2446
{
icculus@9
  2447
    if (!overlay) {
icculus@9
  2448
        return;
icculus@9
  2449
    }
icculus@9
  2450
icculus@9
  2451
    SDL_SW_UnlockYUVTexture(overlay->hwdata->texture);
icculus@9
  2452
}
icculus@9
  2453
icculus@9
  2454
int
icculus@9
  2455
SDL_DisplayYUVOverlay(SDL_Overlay * overlay, SDL_Rect * dstrect)
icculus@9
  2456
{
icculus@9
  2457
    SDL_Surface *display;
icculus@9
  2458
    SDL_Rect src_rect;
icculus@9
  2459
    SDL_Rect dst_rect;
icculus@9
  2460
    void *pixels;
icculus@9
  2461
icculus@9
  2462
    if (!overlay || !dstrect) {
icculus@9
  2463
        SDL_SetError("Passed a NULL overlay or dstrect");
icculus@9
  2464
        return -1;
icculus@9
  2465
    }
icculus@9
  2466
icculus@9
  2467
    display = overlay->hwdata->display;
icculus@16
  2468
    if (display != VideoSurface) {
icculus@16
  2469
        overlay->hwdata->display = display = VideoSurface;
icculus@9
  2470
        overlay->hwdata->display_format = SDL_MasksToPixelFormatEnum(
icculus@9
  2471
                                                display->format->BitsPerPixel,
icculus@9
  2472
                                                display->format->Rmask,
icculus@9
  2473
                                                display->format->Gmask,
icculus@9
  2474
                                                display->format->Bmask,
icculus@9
  2475
                                                display->format->Amask);
icculus@9
  2476
    }
icculus@9
  2477
icculus@9
  2478
    src_rect.x = 0;
icculus@9
  2479
    src_rect.y = 0;
icculus@9
  2480
    src_rect.w = overlay->w;
icculus@9
  2481
    src_rect.h = overlay->h;
icculus@9
  2482
icculus@9
  2483
    if (!SDL_IntersectRect(&display->clip_rect, dstrect, &dst_rect)) {
icculus@9
  2484
        return 0;
icculus@9
  2485
    }
icculus@9
  2486
     
icculus@9
  2487
    pixels = (void *)((Uint8 *)display->pixels +
icculus@9
  2488
                        dst_rect.y * display->pitch +
icculus@9
  2489
                        dst_rect.x * display->format->BytesPerPixel);
icculus@9
  2490
icculus@9
  2491
    if (SDL_SW_CopyYUVToRGB(overlay->hwdata->texture, &src_rect,
icculus@9
  2492
                            overlay->hwdata->display_format,
icculus@9
  2493
                            dst_rect.w, dst_rect.h,
icculus@9
  2494
                            pixels, display->pitch) < 0) {
icculus@9
  2495
        return -1;
icculus@9
  2496
    }
icculus@16
  2497
    SDL_UpdateWindowSurface(VideoWindow);
icculus@9
  2498
    return 0;
icculus@9
  2499
}
icculus@9
  2500
icculus@9
  2501
void
icculus@9
  2502
SDL_FreeYUVOverlay(SDL_Overlay * overlay)
icculus@9
  2503
{
icculus@9
  2504
    if (!overlay) {
icculus@9
  2505
        return;
icculus@9
  2506
    }
icculus@9
  2507
    if (overlay->hwdata) {
icculus@9
  2508
        if (overlay->hwdata->texture) {
icculus@9
  2509
            SDL_SW_DestroyYUVTexture(overlay->hwdata->texture);
icculus@9
  2510
        }
icculus@9
  2511
        SDL_free(overlay->hwdata);
icculus@9
  2512
    }
icculus@9
  2513
    SDL_free(overlay);
icculus@9
  2514
}
icculus@9
  2515
icculus@9
  2516
void
icculus@9
  2517
SDL_GL_SwapBuffers(void)
icculus@9
  2518
{
icculus@16
  2519
    SDL_GL_SwapWindow(VideoWindow);
icculus@9
  2520
}
icculus@9
  2521
icculus@9
  2522
int
icculus@9
  2523
SDL_SetGamma(float red, float green, float blue)
icculus@9
  2524
{
icculus@9
  2525
    Uint16 red_ramp[256];
icculus@9
  2526
    Uint16 green_ramp[256];
icculus@9
  2527
    Uint16 blue_ramp[256];
icculus@9
  2528
icculus@9
  2529
    SDL_CalculateGammaRamp(red, red_ramp);
icculus@9
  2530
    if (green == red) {
icculus@9
  2531
        SDL_memcpy(green_ramp, red_ramp, sizeof(red_ramp));
icculus@9
  2532
    } else {
icculus@9
  2533
        SDL_CalculateGammaRamp(green, green_ramp);
icculus@9
  2534
    }
icculus@9
  2535
    if (blue == red) {
icculus@9
  2536
        SDL_memcpy(blue_ramp, red_ramp, sizeof(red_ramp));
icculus@9
  2537
    } else {
icculus@9
  2538
        SDL_CalculateGammaRamp(blue, blue_ramp);
icculus@9
  2539
    }
icculus@16
  2540
    return SDL_SetWindowGammaRamp(VideoWindow, red_ramp, green_ramp, blue_ramp);
icculus@9
  2541
}
icculus@9
  2542
icculus@9
  2543
int
icculus@9
  2544
SDL_SetGammaRamp(const Uint16 * red, const Uint16 * green, const Uint16 * blue)
icculus@9
  2545
{
icculus@16
  2546
    return SDL_SetWindowGammaRamp(VideoWindow, red, green, blue);
icculus@9
  2547
}
icculus@9
  2548
icculus@9
  2549
int
icculus@9
  2550
SDL_GetGammaRamp(Uint16 * red, Uint16 * green, Uint16 * blue)
icculus@9
  2551
{
icculus@16
  2552
    return SDL_GetWindowGammaRamp(VideoWindow, red, green, blue);
icculus@9
  2553
}
icculus@9
  2554
icculus@9
  2555
int
icculus@9
  2556
SDL_EnableKeyRepeat(int delay, int interval)
icculus@9
  2557
{
icculus@9
  2558
    return 0;
icculus@9
  2559
}
icculus@9
  2560
icculus@9
  2561
void
icculus@9
  2562
SDL_GetKeyRepeat(int *delay, int *interval)
icculus@9
  2563
{
icculus@9
  2564
    if (delay) {
icculus@9
  2565
        *delay = SDL_DEFAULT_REPEAT_DELAY;
icculus@9
  2566
    }
icculus@9
  2567
    if (interval) {
icculus@9
  2568
        *interval = SDL_DEFAULT_REPEAT_INTERVAL;
icculus@9
  2569
    }
icculus@9
  2570
}
icculus@9
  2571
icculus@9
  2572
int
icculus@9
  2573
SDL_EnableUNICODE(int enable)
icculus@9
  2574
{
icculus@16
  2575
    int previous = EnabledUnicode;
icculus@9
  2576
icculus@9
  2577
    switch (enable) {
icculus@9
  2578
    case 1:
icculus@16
  2579
        EnabledUnicode = 1;
icculus@9
  2580
        SDL_StartTextInput();
icculus@9
  2581
        break;
icculus@9
  2582
    case 0:
icculus@16
  2583
        EnabledUnicode = 0;
icculus@9
  2584
        SDL_StopTextInput();
icculus@9
  2585
        break;
icculus@9
  2586
    }
icculus@9
  2587
    return previous;
icculus@9
  2588
}
icculus@9
  2589
icculus@9
  2590
static Uint32
icculus@9
  2591
SDL_SetTimerCallback(Uint32 interval, void* param)
icculus@9
  2592
{
icculus@9
  2593
    return ((SDL_OldTimerCallback)param)(interval);
icculus@9
  2594
}
icculus@9
  2595
icculus@9
  2596
int
icculus@9
  2597
SDL_SetTimer(Uint32 interval, SDL_OldTimerCallback callback)
icculus@9
  2598
{
icculus@9
  2599
    static SDL_TimerID compat_timer;
icculus@9
  2600
icculus@9
  2601
    if (compat_timer) {
icculus@10
  2602
        SDL20_RemoveTimer(compat_timer);
icculus@9
  2603
        compat_timer = 0;
icculus@9
  2604
    }
icculus@9
  2605
icculus@9
  2606
    if (interval && callback) {
icculus@10
  2607
        compat_timer = SDL20_AddTimer(interval, SDL_SetTimerCallback, callback);
icculus@9
  2608
        if (!compat_timer) {
icculus@9
  2609
            return -1;
icculus@9
  2610
        }
icculus@9
  2611
    }
icculus@9
  2612
    return 0;
icculus@9
  2613
}
icculus@9
  2614
icculus@9
  2615
int
icculus@9
  2616
SDL_putenv(const char *_var)
icculus@9
  2617
{
icculus@9
  2618
    char *ptr = NULL;
icculus@9
  2619
    char *var = SDL_strdup(_var);
icculus@9
  2620
    if (var == NULL) {
icculus@9
  2621
        return -1;  /* we don't set errno. */
icculus@9
  2622
    }
icculus@9
  2623
icculus@9
  2624
    ptr = SDL_strchr(var, '=');
icculus@9
  2625
    if (ptr == NULL) {
icculus@9
  2626
        SDL_free(var);
icculus@9
  2627
        return -1;
icculus@9
  2628
    }
icculus@9
  2629
icculus@9
  2630
    *ptr = '\0';  /* split the string into name and value. */
icculus@9
  2631
    SDL_setenv(var, ptr + 1, 1);
icculus@9
  2632
    SDL_free(var);
icculus@9
  2633
    return 0;
icculus@9
  2634
}
icculus@9
  2635
icculus@9
  2636
icculus@9
  2637
icculus@9
  2638
/* CD-ROM support is gone from SDL 2.0, so just have stubs that fail. */
icculus@9
  2639
icculus@9
  2640
typedef void *SDL12_CD;  /* close enough.  :) */
icculus@9
  2641
typedef int SDL12_CDstatus;  /* close enough.  :) */
icculus@9
  2642
icculus@9
  2643
static int
icculus@9
  2644
CDUnsupported(void)
icculus@9
  2645
{
icculus@9
  2646
    SDL_SetError("CD interface is unsupported");
icculus@9
  2647
    return -1;
icculus@9
  2648
}
icculus@9
  2649
icculus@9
  2650
int
icculus@9
  2651
SDL_CDNumDrives(void)
icculus@9
  2652
{
icculus@9
  2653
    return 0;  /* !!! FIXME: should return -1 without SDL_INIT_CDROM */
icculus@9
  2654
}
icculus@9
  2655
icculus@9
  2656
const char *SDL_CDName(int drive) { CDUnsupported(); return NULL; }
icculus@9
  2657
SDL12_CD * SDL_CDOpen(int drive) { CDUnsupported(); return NULL; }
icculus@9
  2658
SDL12_CDstatus SDL_CDStatus(SDL_CD *cdrom) { return CDUnsupported(); }
icculus@9
  2659
int SDL_CDPlayTracks(SDL12_CD *cdrom, int start_track, int start_frame, int ntracks, int nframes) { return CDUnsupported(); }
icculus@9
  2660
int SDL_CDPlay(SDL12_CD *cdrom, int start, int length) { return CDUnsupported(); }
icculus@9
  2661
int SDL_CDPause(SDL12_CD *cdrom) { return CDUnsupported(); }
icculus@9
  2662
int SDL_CDResume(SDL12_CD *cdrom) { return CDUnsupported(); }
icculus@9
  2663
int SDL_CDStop(SDL12_CD *cdrom) { return CDUnsupported(); }
icculus@9
  2664
int SDL_CDEject(SDL12_CD *cdrom) { return CDUnsupported(); }
icculus@9
  2665
void SDL_CDClose(SDL12_CD *cdrom) {}
icculus@9
  2666
icculus@9
  2667
/* !!! FIXME: Removed from 2.0; do nothing. We can't even report failure. */
icculus@9
  2668
void SDL_KillThread(SDL_Thread *thread) {}
icculus@9
  2669
icculus@10
  2670
/* This changed from an opaque pointer to an int in 2.0. */
icculus@10
  2671
typedef struct _SDL12_TimerID *SDL12_TimerID;
icculus@10
  2672
SDL_COMPILE_TIME_ASSERT(timer, sizeof(SDL12_TimerID) >= sizeof(SDL_TimerID));
icculus@10
  2673
icculus@10
  2674
SDL12_TimerID
icculus@10
  2675
SDL_AddTimer(Uint32 interval, SDL_NewTimerCallback callback, void *param)
icculus@10
  2676
{
icculus@10
  2677
    return (SDL12_TimerID) ((size_t) SDL20_AddTimer(interval, callback, param));
icculus@10
  2678
}
icculus@10
  2679
icculus@10
  2680
SDL_bool
icculus@10
  2681
SDL_RemoveTimer(SDL12_TimerID id)
icculus@10
  2682
{
icculus@10
  2683
    return SDL20_RemoveTimer((SDL_TimerID) ((size_t)id));
icculus@10
  2684
}
icculus@10
  2685
icculus@10
  2686
icculus@10
  2687
typedef struct SDL12_RWops {
icculus@10
  2688
    int (SDLCALL *seek)(struct SDL_RWops *context, int offset, int whence);
icculus@10
  2689
    int (SDLCALL *read)(struct SDL_RWops *context, void *ptr, int size, int maxnum);
icculus@10
  2690
    int (SDLCALL *write)(struct SDL_RWops *context, const void *ptr, int size, int num);
icculus@10
  2691
    int (SDLCALL *close)(struct SDL_RWops *context);
icculus@10
  2692
    Uint32 type;
icculus@10
  2693
    void *padding[8];
icculus@10
  2694
    SDL_RWops *rwops20;
icculus@10
  2695
} SDL12_RWops;
icculus@10
  2696
icculus@10
  2697
icculus@10
  2698
SDL12_RWops *
icculus@10
  2699
SDL_AllocRW(void)
icculus@10
  2700
{
icculus@10
  2701
    SDL12_RWops *rwops = (SDL12_RWops *) SDL_malloc(sizeof (SDL12_RWops));
icculus@10
  2702
    if (!rwops)
icculus@10
  2703
        SDL20_OutOfMemory();
icculus@10
  2704
    return rwops;
icculus@10
  2705
}
icculus@10
  2706
icculus@10
  2707
void
icculus@10
  2708
SDL_FreeRW(SDL12_RWops *rwops12)
icculus@10
  2709
{
icculus@10
  2710
    SDL_free(rwops12);
icculus@10
  2711
}
icculus@10
  2712
icculus@10
  2713
static int SDLCALL
icculus@12
  2714
RWops12to20_seek(struct SDL12_RWops *rwops12, int offset, int whence)
icculus@10
  2715
{
icculus@10
  2716
    return rwops12->rwops20->seek(rwops12->rwops20, offset, whence);
icculus@10
  2717
}
icculus@10
  2718
icculus@10
  2719
static int SDLCALL
icculus@12
  2720
RWops12to20_read(struct SDL12_RWops *rwops12, void *ptr, int size, int maxnum)
icculus@10
  2721
{
icculus@10
  2722
    return rwops12->rwops20->read(rwops12->rwops20, ptr, size, maxnum);
icculus@10
  2723
}
icculus@10
  2724
icculus@10
  2725
static int SDLCALL
icculus@12
  2726
RWops12to20_write(struct SDL12_RWops *rwops12, const void *ptr, int size, int num)
icculus@10
  2727
{
icculus@10
  2728
    return rwops12->rwops20->write(rwops12->rwops20, ptr, size, num);
icculus@10
  2729
}
icculus@10
  2730
icculus@10
  2731
static int SDLCALL
icculus@12
  2732
RWops12to20_close(struct SDL12_RWops *rwops12)
icculus@10
  2733
{
icculus@10
  2734
    int rc = 0;
icculus@10
  2735
    if (rwops12)
icculus@10
  2736
    {
icculus@10
  2737
        rc = rwops12->rwops20->close(rwops12->rwops20);
icculus@10
  2738
        if (rc == 0)
icculus@10
  2739
            SDL_FreeRW(rwops12);
icculus@10
  2740
    }
icculus@10
  2741
    return rc;
icculus@10
  2742
}
</