src/SDL_compat.c
author Sam Lantinga <slouken@libsdl.org>
Fri, 06 Jul 2007 13:45:10 +0000
changeset 2153 760c1bd2d625
parent 2152 003c1b5b07da
child 2202 98e76ba7d5a4
permissions -rw-r--r--
Reverted mousewheel support in 1.2, since it breaks binary compatibility.
slouken@1895
     1
/*
slouken@1895
     2
    SDL - Simple DirectMedia Layer
slouken@1895
     3
    Copyright (C) 1997-2006 Sam Lantinga
slouken@1895
     4
slouken@1895
     5
    This library is free software; you can redistribute it and/or
slouken@1895
     6
    modify it under the terms of the GNU Lesser General Public
slouken@1895
     7
    License as published by the Free Software Foundation; either
slouken@1895
     8
    version 2.1 of the License, or (at your option) any later version.
slouken@1895
     9
slouken@1895
    10
    This library is distributed in the hope that it will be useful,
slouken@1895
    11
    but WITHOUT ANY WARRANTY; without even the implied warranty of
slouken@1895
    12
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
slouken@1895
    13
    Lesser General Public License for more details.
slouken@1895
    14
slouken@1895
    15
    You should have received a copy of the GNU Lesser General Public
slouken@1895
    16
    License along with this library; if not, write to the Free Software
slouken@1895
    17
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
slouken@1895
    18
slouken@1895
    19
    Sam Lantinga
slouken@1895
    20
    slouken@libsdl.org
slouken@1895
    21
*/
slouken@1895
    22
#include "SDL_config.h"
slouken@1895
    23
slouken@1895
    24
/* This file contains functions for backwards compatibility with SDL 1.2 */
slouken@1895
    25
slouken@1895
    26
#include "SDL.h"
slouken@1895
    27
#include "SDL_syswm.h"
slouken@1895
    28
slouken@1895
    29
#include "video/SDL_sysvideo.h"
slouken@1895
    30
#include "video/SDL_pixels_c.h"
slouken@1895
    31
slouken@1895
    32
slouken@1895
    33
static SDL_WindowID SDL_VideoWindow;
slouken@1907
    34
static SDL_RendererInfo SDL_VideoRendererInfo;
slouken@1895
    35
static SDL_TextureID SDL_VideoTexture;
slouken@1895
    36
static SDL_Surface *SDL_VideoSurface;
slouken@1895
    37
static SDL_Surface *SDL_ShadowSurface;
slouken@1895
    38
static SDL_Surface *SDL_PublicSurface;
slouken@1912
    39
static SDL_GLContext *SDL_VideoContext;
slouken@1895
    40
static char *wm_title;
slouken@1895
    41
slouken@1895
    42
char *
slouken@1895
    43
SDL_AudioDriverName(char *namebuf, int maxlen)
slouken@1895
    44
{
slouken@1895
    45
    const char *name = SDL_GetCurrentAudioDriver();
slouken@1895
    46
    if (name) {
slouken@1895
    47
        SDL_strlcpy(namebuf, name, maxlen);
slouken@1895
    48
        return namebuf;
slouken@1895
    49
    }
slouken@1895
    50
    return NULL;
slouken@1895
    51
}
slouken@1895
    52
slouken@1895
    53
char *
slouken@1895
    54
SDL_VideoDriverName(char *namebuf, int maxlen)
slouken@1895
    55
{
slouken@1895
    56
    const char *name = SDL_GetCurrentVideoDriver();
slouken@1895
    57
    if (name) {
slouken@1895
    58
        SDL_strlcpy(namebuf, name, maxlen);
slouken@1895
    59
        return namebuf;
slouken@1895
    60
    }
slouken@1895
    61
    return NULL;
slouken@1895
    62
}
slouken@1895
    63
slouken@1895
    64
const SDL_VideoInfo *
slouken@1895
    65
SDL_GetVideoInfo(void)
slouken@1895
    66
{
slouken@1895
    67
    static SDL_VideoInfo info;
slouken@1967
    68
    SDL_DisplayMode mode;
slouken@1895
    69
slouken@1895
    70
    /* Memory leak, compatibility code, who cares? */
slouken@1967
    71
    if (!info.vfmt && SDL_GetDesktopDisplayMode(&mode) == 0) {
slouken@1895
    72
        int bpp;
slouken@1895
    73
        Uint32 Rmask, Gmask, Bmask, Amask;
slouken@1895
    74
slouken@1967
    75
        SDL_PixelFormatEnumToMasks(mode.format, &bpp, &Rmask, &Gmask, &Bmask,
slouken@1967
    76
                                   &Amask);
slouken@1895
    77
        info.vfmt = SDL_AllocFormat(bpp, Rmask, Gmask, Bmask, Amask);
slouken@1895
    78
    }
slouken@1895
    79
    return &info;
slouken@1895
    80
}
slouken@1895
    81
slouken@1895
    82
int
slouken@1895
    83
SDL_VideoModeOK(int width, int height, int bpp, Uint32 flags)
slouken@1895
    84
{
slouken@1895
    85
    int i, actual_bpp = 0;
slouken@1895
    86
slouken@1895
    87
    if (!SDL_GetVideoDevice()) {
slouken@1895
    88
        return 0;
slouken@1895
    89
    }
slouken@1895
    90
slouken@1895
    91
    if (!(flags & SDL_FULLSCREEN)) {
slouken@1967
    92
        SDL_DisplayMode mode;
slouken@1967
    93
        SDL_GetDesktopDisplayMode(&mode);
slouken@1967
    94
        return SDL_BITSPERPIXEL(mode.format);
slouken@1895
    95
    }
slouken@1895
    96
slouken@1895
    97
    for (i = 0; i < SDL_GetNumDisplayModes(); ++i) {
slouken@1967
    98
        SDL_DisplayMode mode;
slouken@1967
    99
        SDL_GetDisplayMode(i, &mode);
slouken@1967
   100
        if (!mode.w || !mode.h || (width == mode.w && height == mode.h)) {
slouken@1967
   101
            if (!mode.format) {
slouken@1895
   102
                return bpp;
slouken@1895
   103
            }
slouken@1967
   104
            if (SDL_BITSPERPIXEL(mode.format) >= (Uint32) bpp) {
slouken@1967
   105
                actual_bpp = SDL_BITSPERPIXEL(mode.format);
slouken@1895
   106
            }
slouken@1895
   107
        }
slouken@1895
   108
    }
slouken@1895
   109
    return actual_bpp;
slouken@1895
   110
}
slouken@1895
   111
slouken@1895
   112
SDL_Rect **
slouken@1895
   113
SDL_ListModes(SDL_PixelFormat * format, Uint32 flags)
slouken@1895
   114
{
slouken@1895
   115
    int i, nmodes;
slouken@1895
   116
    SDL_Rect **modes;
slouken@1895
   117
slouken@1895
   118
    if (!SDL_GetVideoDevice()) {
slouken@1895
   119
        return NULL;
slouken@1895
   120
    }
slouken@1895
   121
slouken@1895
   122
    if (!(flags & SDL_FULLSCREEN)) {
slouken@1895
   123
        return (SDL_Rect **) (-1);
slouken@1895
   124
    }
slouken@1895
   125
slouken@1895
   126
    /* Memory leak, but this is a compatibility function, who cares? */
slouken@1895
   127
    nmodes = 0;
slouken@1895
   128
    modes = NULL;
slouken@1895
   129
    for (i = 0; i < SDL_GetNumDisplayModes(); ++i) {
slouken@1967
   130
        SDL_DisplayMode mode;
slouken@1967
   131
        SDL_GetDisplayMode(i, &mode);
slouken@1967
   132
        if (!mode.w || !mode.h) {
slouken@1895
   133
            return (SDL_Rect **) (-1);
slouken@1895
   134
        }
slouken@1967
   135
        if (SDL_BITSPERPIXEL(mode.format) != format->BitsPerPixel) {
slouken@1895
   136
            continue;
slouken@1895
   137
        }
slouken@1967
   138
        if (nmodes > 0 && modes[nmodes - 1]->w == mode.w
slouken@1967
   139
            && modes[nmodes - 1]->h == mode.h) {
slouken@1895
   140
            continue;
slouken@1895
   141
        }
slouken@1895
   142
slouken@1895
   143
        modes = SDL_realloc(modes, (nmodes + 2) * sizeof(*modes));
slouken@1895
   144
        if (!modes) {
slouken@1895
   145
            return NULL;
slouken@1895
   146
        }
slouken@1895
   147
        modes[nmodes] = (SDL_Rect *) SDL_malloc(sizeof(SDL_Rect));
slouken@1895
   148
        if (!modes[nmodes]) {
slouken@1895
   149
            return NULL;
slouken@1895
   150
        }
slouken@1895
   151
        modes[nmodes]->x = 0;
slouken@1895
   152
        modes[nmodes]->y = 0;
slouken@1967
   153
        modes[nmodes]->w = mode.w;
slouken@1967
   154
        modes[nmodes]->h = mode.h;
slouken@1895
   155
        ++nmodes;
slouken@1895
   156
    }
slouken@1895
   157
    if (modes) {
slouken@1895
   158
        modes[nmodes] = NULL;
slouken@1895
   159
    }
slouken@1895
   160
    return modes;
slouken@1895
   161
}
slouken@1895
   162
slouken@1895
   163
static int
slouken@1895
   164
SDL_CompatEventFilter(void *userdata, SDL_Event * event)
slouken@1895
   165
{
slouken@1895
   166
    SDL_Event fake;
slouken@1895
   167
slouken@1895
   168
    switch (event->type) {
slouken@1895
   169
    case SDL_WINDOWEVENT:
slouken@1895
   170
        switch (event->window.event) {
slouken@1895
   171
        case SDL_WINDOWEVENT_EXPOSED:
slouken@1895
   172
            if (!SDL_HasEvent(SDL_VIDEOEXPOSEMASK)) {
slouken@1895
   173
                fake.type = SDL_VIDEOEXPOSE;
slouken@1895
   174
                SDL_PushEvent(&fake);
slouken@1895
   175
            }
slouken@1895
   176
            break;
slouken@1895
   177
        case SDL_WINDOWEVENT_RESIZED:
slouken@1895
   178
            fake.type = SDL_VIDEORESIZE;
slouken@1895
   179
            fake.resize.w = event->window.data1;
slouken@1895
   180
            fake.resize.h = event->window.data2;
slouken@1895
   181
            SDL_PushEvent(&fake);
slouken@1895
   182
            break;
slouken@1895
   183
        case SDL_WINDOWEVENT_MINIMIZED:
slouken@1895
   184
            fake.type = SDL_ACTIVEEVENT;
slouken@1895
   185
            fake.active.gain = 0;
slouken@1895
   186
            fake.active.state = SDL_APPACTIVE;
slouken@1895
   187
            SDL_PushEvent(&fake);
slouken@1895
   188
            break;
slouken@1895
   189
        case SDL_WINDOWEVENT_RESTORED:
slouken@1895
   190
            fake.type = SDL_ACTIVEEVENT;
slouken@1895
   191
            fake.active.gain = 1;
slouken@1895
   192
            fake.active.state = SDL_APPACTIVE;
slouken@1895
   193
            SDL_PushEvent(&fake);
slouken@1895
   194
            break;
slouken@1895
   195
        case SDL_WINDOWEVENT_ENTER:
slouken@1895
   196
            fake.type = SDL_ACTIVEEVENT;
slouken@1895
   197
            fake.active.gain = 1;
slouken@1895
   198
            fake.active.state = SDL_APPMOUSEFOCUS;
slouken@1895
   199
            SDL_PushEvent(&fake);
slouken@1895
   200
            break;
slouken@1895
   201
        case SDL_WINDOWEVENT_LEAVE:
slouken@1895
   202
            fake.type = SDL_ACTIVEEVENT;
slouken@1895
   203
            fake.active.gain = 0;
slouken@1895
   204
            fake.active.state = SDL_APPMOUSEFOCUS;
slouken@1895
   205
            SDL_PushEvent(&fake);
slouken@1895
   206
            break;
slouken@1895
   207
        case SDL_WINDOWEVENT_FOCUS_GAINED:
slouken@1895
   208
            fake.type = SDL_ACTIVEEVENT;
slouken@1895
   209
            fake.active.gain = 1;
slouken@1895
   210
            fake.active.state = SDL_APPINPUTFOCUS;
slouken@1895
   211
            SDL_PushEvent(&fake);
slouken@1895
   212
            break;
slouken@1895
   213
        case SDL_WINDOWEVENT_FOCUS_LOST:
slouken@1895
   214
            fake.type = SDL_ACTIVEEVENT;
slouken@2058
   215
            fake.active.gain = 0;
slouken@1895
   216
            fake.active.state = SDL_APPINPUTFOCUS;
slouken@1895
   217
            SDL_PushEvent(&fake);
slouken@1895
   218
            break;
slouken@1895
   219
        case SDL_WINDOWEVENT_CLOSE:
slouken@1895
   220
            fake.type = SDL_QUIT;
slouken@1895
   221
            SDL_PushEvent(&fake);
slouken@1895
   222
            break;
slouken@1895
   223
        }
slouken@1895
   224
    case SDL_KEYDOWN:
slouken@1895
   225
    case SDL_KEYUP:
slouken@1895
   226
        {
slouken@1895
   227
            Uint32 unicode = 0;
slouken@1895
   228
            if (event->key.type == SDL_KEYDOWN && event->key.keysym.sym < 256) {
slouken@1895
   229
                unicode = event->key.keysym.sym;
slouken@1895
   230
                if (unicode >= 'a' && unicode <= 'z') {
slouken@1895
   231
                    int shifted = !!(event->key.keysym.mod & KMOD_SHIFT);
slouken@1895
   232
                    int capslock = !!(event->key.keysym.mod & KMOD_CAPS);
slouken@1895
   233
                    if ((shifted ^ capslock) != 0) {
slouken@1895
   234
                        unicode = SDL_toupper(unicode);
slouken@1895
   235
                    }
slouken@1895
   236
                }
slouken@1895
   237
            }
slouken@1895
   238
            if (unicode) {
slouken@1895
   239
                event->key.keysym.unicode = unicode;
slouken@1895
   240
            }
slouken@1895
   241
            break;
slouken@1895
   242
        }
slouken@2129
   243
    case SDL_TEXTINPUT:
slouken@2129
   244
        {
slouken@2129
   245
            /* FIXME: Generate an old style key repeat event if needed */
slouken@2130
   246
            //printf("TEXTINPUT: '%s'\n", event->text.text);
slouken@2129
   247
            break;
slouken@2129
   248
        }
slouken@1895
   249
    case SDL_MOUSEWHEEL:
slouken@1895
   250
        {
slouken@1895
   251
            Uint8 button;
slouken@1895
   252
            int selected;
slouken@1895
   253
            int x, y;
slouken@1895
   254
slouken@2153
   255
            if (event->wheel.y == 0) {
slouken@2153
   256
                break;
slouken@2153
   257
            }
slouken@2153
   258
slouken@1895
   259
            selected = SDL_SelectMouse(event->wheel.which);
slouken@1895
   260
            SDL_GetMouseState(&x, &y);
slouken@1895
   261
            SDL_SelectMouse(selected);
slouken@1895
   262
slouken@2153
   263
            if (event->wheel.y > 0) {
slouken@2153
   264
                button = SDL_BUTTON_WHEELUP;
slouken@2153
   265
            } else {
slouken@2153
   266
                button = SDL_BUTTON_WHEELDOWN;
slouken@2153
   267
            }
slouken@2153
   268
slouken@1895
   269
            fake.button.which = event->wheel.windowID;
slouken@2153
   270
            fake.button.button = button;
slouken@1895
   271
            fake.button.x = x;
slouken@1895
   272
            fake.button.y = y;
slouken@1895
   273
            fake.button.windowID = event->wheel.windowID;
slouken@1895
   274
slouken@2153
   275
            fake.type = SDL_MOUSEBUTTONDOWN;
slouken@2153
   276
            fake.button.state = SDL_PRESSED;
slouken@2153
   277
            SDL_PushEvent(&fake);
slouken@1895
   278
slouken@2153
   279
            fake.type = SDL_MOUSEBUTTONUP;
slouken@2153
   280
            fake.button.state = SDL_RELEASED;
slouken@2153
   281
            SDL_PushEvent(&fake);
slouken@1895
   282
            break;
slouken@1895
   283
        }
slouken@1895
   284
slouken@1895
   285
    }
slouken@1895
   286
    return 1;
slouken@1895
   287
}
slouken@1895
   288
slouken@1895
   289
static int
slouken@1895
   290
SDL_VideoPaletteChanged(void *userdata, SDL_Palette * palette)
slouken@1895
   291
{
slouken@1895
   292
    if (userdata == SDL_ShadowSurface) {
slouken@1895
   293
        /* If the shadow palette changed, make the changes visible */
slouken@1895
   294
        if (!SDL_VideoSurface->format->palette) {
slouken@1895
   295
            SDL_UpdateRect(SDL_ShadowSurface, 0, 0, 0, 0);
slouken@1895
   296
        }
slouken@1895
   297
    }
slouken@1895
   298
    if (userdata == SDL_VideoSurface) {
slouken@1974
   299
        if (SDL_SetDisplayPalette(palette->colors, 0, palette->ncolors) < 0) {
slouken@1974
   300
            return -1;
slouken@1974
   301
        }
slouken@1974
   302
        if (SDL_SetTexturePalette
slouken@1974
   303
            (SDL_VideoTexture, palette->colors, 0, palette->ncolors) < 0) {
slouken@1974
   304
            return -1;
slouken@1974
   305
        }
slouken@1895
   306
    }
slouken@1895
   307
    return 0;
slouken@1895
   308
}
slouken@1895
   309
slouken@1895
   310
static void
slouken@1895
   311
GetEnvironmentWindowPosition(int w, int h, int *x, int *y)
slouken@1895
   312
{
slouken@1895
   313
    const char *window = SDL_getenv("SDL_VIDEO_WINDOW_POS");
slouken@1895
   314
    const char *center = SDL_getenv("SDL_VIDEO_CENTERED");
slouken@1895
   315
    if (window) {
slouken@1895
   316
        if (SDL_sscanf(window, "%d,%d", x, y) == 2) {
slouken@1895
   317
            return;
slouken@1895
   318
        }
slouken@1895
   319
        if (SDL_strcmp(window, "center") == 0) {
slouken@1895
   320
            center = window;
slouken@1895
   321
        }
slouken@1895
   322
    }
slouken@1895
   323
    if (center) {
slouken@1967
   324
        SDL_DisplayMode mode;
slouken@1967
   325
        SDL_GetDesktopDisplayMode(&mode);
slouken@1967
   326
        *x = (mode.w - w) / 2;
slouken@1967
   327
        *y = (mode.h - h) / 2;
slouken@1895
   328
    }
slouken@1895
   329
}
slouken@1895
   330
slouken@1895
   331
SDL_Surface *
slouken@1895
   332
SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags)
slouken@1895
   333
{
slouken@1967
   334
    SDL_DisplayMode desktop_mode;
slouken@1895
   335
    SDL_DisplayMode mode;
slouken@1895
   336
    int window_x = SDL_WINDOWPOS_UNDEFINED;
slouken@1895
   337
    int window_y = SDL_WINDOWPOS_UNDEFINED;
slouken@1895
   338
    Uint32 window_flags;
slouken@1895
   339
    Uint32 desktop_format;
slouken@1895
   340
    Uint32 desired_format;
slouken@1895
   341
    Uint32 surface_flags;
slouken@1895
   342
slouken@1895
   343
    if (!SDL_GetVideoDevice()) {
slouken@1895
   344
        if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE) < 0) {
slouken@1895
   345
            return NULL;
slouken@1895
   346
        }
slouken@1895
   347
    }
slouken@1895
   348
slouken@1895
   349
    /* Destroy existing window */
slouken@1895
   350
    SDL_PublicSurface = NULL;
slouken@1895
   351
    if (SDL_ShadowSurface) {
slouken@1895
   352
        SDL_FreeSurface(SDL_ShadowSurface);
slouken@1895
   353
        SDL_ShadowSurface = NULL;
slouken@1895
   354
    }
slouken@1895
   355
    if (SDL_VideoSurface) {
slouken@1895
   356
        SDL_DelPaletteWatch(SDL_VideoSurface->format->palette,
slouken@1895
   357
                            SDL_VideoPaletteChanged, NULL);
slouken@1895
   358
        SDL_FreeSurface(SDL_VideoSurface);
slouken@1895
   359
        SDL_VideoSurface = NULL;
slouken@1895
   360
    }
slouken@1912
   361
    if (SDL_VideoContext) {
slouken@1913
   362
        SDL_GL_MakeCurrent(0, NULL);
slouken@1912
   363
        SDL_GL_DeleteContext(SDL_VideoContext);
slouken@1912
   364
        SDL_VideoContext = NULL;
slouken@1912
   365
    }
slouken@1895
   366
    if (SDL_VideoWindow) {
slouken@1895
   367
        SDL_GetWindowPosition(SDL_VideoWindow, &window_x, &window_y);
slouken@1895
   368
    }
slouken@1895
   369
    SDL_DestroyWindow(SDL_VideoWindow);
slouken@1895
   370
slouken@1895
   371
    /* Set up the event filter */
slouken@1895
   372
    if (!SDL_GetEventFilter(NULL, NULL)) {
slouken@1895
   373
        SDL_SetEventFilter(SDL_CompatEventFilter, NULL);
slouken@1895
   374
    }
slouken@1895
   375
slouken@1895
   376
    /* Create a new window */
slouken@1895
   377
    window_flags = SDL_WINDOW_SHOWN;
slouken@1895
   378
    if (flags & SDL_FULLSCREEN) {
slouken@1895
   379
        window_flags |= SDL_WINDOW_FULLSCREEN;
slouken@1895
   380
    }
slouken@1895
   381
    if (flags & SDL_OPENGL) {
slouken@1895
   382
        window_flags |= SDL_WINDOW_OPENGL;
slouken@1895
   383
    }
slouken@1895
   384
    if (flags & SDL_RESIZABLE) {
slouken@1895
   385
        window_flags |= SDL_WINDOW_RESIZABLE;
slouken@1895
   386
    }
slouken@1895
   387
    if (flags & SDL_NOFRAME) {
slouken@1895
   388
        window_flags |= SDL_WINDOW_BORDERLESS;
slouken@1895
   389
    }
slouken@1895
   390
    GetEnvironmentWindowPosition(width, height, &window_x, &window_y);
slouken@1895
   391
    SDL_SetFullscreenDisplayMode(NULL);
slouken@1895
   392
    SDL_VideoWindow =
slouken@1895
   393
        SDL_CreateWindow(wm_title, window_x, window_y, width, height,
slouken@1895
   394
                         window_flags);
slouken@1895
   395
    if (!SDL_VideoWindow) {
slouken@1895
   396
        return NULL;
slouken@1895
   397
    }
slouken@1895
   398
slouken@1895
   399
    window_flags = SDL_GetWindowFlags(SDL_VideoWindow);
slouken@1895
   400
    surface_flags = 0;
slouken@1895
   401
    if (window_flags & SDL_WINDOW_FULLSCREEN) {
slouken@1895
   402
        surface_flags |= SDL_FULLSCREEN;
slouken@1895
   403
    }
slouken@1895
   404
    if (window_flags & SDL_WINDOW_OPENGL) {
slouken@1895
   405
        surface_flags |= SDL_OPENGL;
slouken@1895
   406
    }
slouken@1895
   407
    if (window_flags & SDL_WINDOW_RESIZABLE) {
slouken@1895
   408
        surface_flags |= SDL_RESIZABLE;
slouken@1895
   409
    }
slouken@1895
   410
    if (window_flags & SDL_WINDOW_BORDERLESS) {
slouken@1895
   411
        surface_flags |= SDL_NOFRAME;
slouken@1895
   412
    }
slouken@1895
   413
slouken@1895
   414
    /* Set up the desired display mode */
slouken@1967
   415
    SDL_GetDesktopDisplayMode(&desktop_mode);
slouken@1967
   416
    desktop_format = desktop_mode.format;
slouken@1895
   417
    if (desktop_format && ((flags & SDL_ANYFORMAT)
slouken@1895
   418
                           || (bpp == SDL_BITSPERPIXEL(desktop_format)))) {
slouken@1895
   419
        desired_format = desktop_format;
slouken@1895
   420
    } else {
slouken@1895
   421
        switch (bpp) {
slouken@1895
   422
        case 0:
slouken@1895
   423
            if (desktop_format) {
slouken@1895
   424
                desired_format = desktop_format;
slouken@1895
   425
            } else {
slouken@1965
   426
                desired_format = SDL_PIXELFORMAT_RGB888;
slouken@1895
   427
            }
slouken@1895
   428
            break;
slouken@1895
   429
        case 8:
slouken@1965
   430
            desired_format = SDL_PIXELFORMAT_INDEX8;
slouken@1895
   431
            break;
slouken@1895
   432
        case 15:
slouken@1965
   433
            desired_format = SDL_PIXELFORMAT_RGB555;
slouken@1895
   434
            break;
slouken@1895
   435
        case 16:
slouken@1965
   436
            desired_format = SDL_PIXELFORMAT_RGB565;
slouken@1895
   437
            break;
slouken@1895
   438
        case 24:
slouken@1965
   439
            desired_format = SDL_PIXELFORMAT_RGB24;
slouken@1895
   440
            break;
slouken@1895
   441
        case 32:
slouken@1965
   442
            desired_format = SDL_PIXELFORMAT_RGB888;
slouken@1895
   443
            break;
slouken@1895
   444
        default:
slouken@1895
   445
            SDL_SetError("Unsupported bpp in SDL_SetVideoMode()");
slouken@1895
   446
            return NULL;
slouken@1895
   447
        }
slouken@1895
   448
    }
slouken@1895
   449
    mode.format = desired_format;
slouken@1895
   450
    mode.w = width;
slouken@1895
   451
    mode.h = height;
slouken@1895
   452
    mode.refresh_rate = 0;
slouken@1895
   453
slouken@1895
   454
    /* Set the desired display mode */
slouken@1895
   455
    if (flags & SDL_FULLSCREEN) {
slouken@1895
   456
        if (SDL_SetFullscreenDisplayMode(&mode) < 0) {
slouken@1895
   457
            return NULL;
slouken@1895
   458
        }
slouken@1895
   459
    }
slouken@1895
   460
slouken@1895
   461
    /* If we're in OpenGL mode, just create a stub surface and we're done! */
slouken@1895
   462
    if (flags & SDL_OPENGL) {
slouken@1912
   463
        SDL_VideoContext = SDL_GL_CreateContext(SDL_VideoWindow);
slouken@1912
   464
        if (!SDL_VideoContext) {
slouken@1912
   465
            return NULL;
slouken@1912
   466
        }
slouken@1912
   467
        if (SDL_GL_MakeCurrent(SDL_VideoWindow, SDL_VideoContext) < 0) {
slouken@1912
   468
            return NULL;
slouken@1912
   469
        }
slouken@1895
   470
        SDL_VideoSurface =
slouken@1895
   471
            SDL_CreateRGBSurfaceFrom(NULL, width, height, bpp, 0, 0, 0, 0, 0);
slouken@1895
   472
        if (!SDL_VideoSurface) {
slouken@1895
   473
            return NULL;
slouken@1895
   474
        }
slouken@1895
   475
        SDL_VideoSurface->flags |= surface_flags;
slouken@1895
   476
        SDL_PublicSurface = SDL_VideoSurface;
slouken@1895
   477
        return SDL_PublicSurface;
slouken@1895
   478
    }
slouken@1895
   479
slouken@1895
   480
    /* Create a renderer for the window */
slouken@1907
   481
    if (SDL_CreateRenderer
slouken@1907
   482
        (SDL_VideoWindow, -1,
slouken@1965
   483
         SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTDISCARD) < 0) {
slouken@1895
   484
        return NULL;
slouken@1895
   485
    }
slouken@1969
   486
    SDL_GetRenderDriverInfo(-1, &SDL_VideoRendererInfo);
slouken@1895
   487
slouken@1895
   488
    /* Create a texture for the screen surface */
slouken@1895
   489
    SDL_VideoTexture =
slouken@1965
   490
        SDL_CreateTexture(desired_format, SDL_TEXTUREACCESS_LOCAL, width,
slouken@1895
   491
                          height);
slouken@1895
   492
    if (!SDL_VideoTexture) {
slouken@1895
   493
        SDL_VideoTexture =
slouken@1965
   494
            SDL_CreateTexture(SDL_PIXELFORMAT_RGB888, SDL_TEXTUREACCESS_LOCAL,
slouken@1924
   495
                              width, height);
slouken@1895
   496
    }
slouken@1895
   497
    if (!SDL_VideoTexture) {
slouken@1895
   498
        return NULL;
slouken@1895
   499
    }
slouken@1895
   500
slouken@1895
   501
    /* Create the screen surface */
slouken@1895
   502
    SDL_VideoSurface = SDL_CreateRGBSurfaceFromTexture(SDL_VideoTexture);
slouken@1895
   503
    if (!SDL_VideoSurface) {
slouken@1895
   504
        return NULL;
slouken@1895
   505
    }
slouken@1895
   506
    SDL_VideoSurface->flags |= surface_flags;
slouken@1895
   507
slouken@1895
   508
    /* Set a default screen palette */
slouken@1895
   509
    if (SDL_VideoSurface->format->palette) {
slouken@1895
   510
        SDL_VideoSurface->flags |= SDL_HWPALETTE;
slouken@1895
   511
        SDL_DitherColors(SDL_VideoSurface->format->palette->colors,
slouken@1895
   512
                         SDL_VideoSurface->format->BitsPerPixel);
slouken@1895
   513
        SDL_AddPaletteWatch(SDL_VideoSurface->format->palette,
slouken@1895
   514
                            SDL_VideoPaletteChanged, NULL);
slouken@1895
   515
        SDL_SetPaletteColors(SDL_VideoSurface->format->palette,
slouken@1895
   516
                             SDL_VideoSurface->format->palette->colors, 0,
slouken@1895
   517
                             SDL_VideoSurface->format->palette->ncolors);
slouken@1895
   518
    }
slouken@1895
   519
slouken@1895
   520
    /* Create a shadow surface if necessary */
slouken@1895
   521
    if (((bpp != SDL_VideoSurface->format->BitsPerPixel)
slouken@1895
   522
         && !(flags & SDL_ANYFORMAT))
slouken@1895
   523
        || ((SDL_VideoSurface->flags & SDL_HWSURFACE)
slouken@1895
   524
            && !(flags & SDL_HWSURFACE))) {
slouken@1895
   525
        if ((bpp == SDL_VideoSurface->format->BitsPerPixel)
slouken@1895
   526
            || (flags & SDL_ANYFORMAT)) {
slouken@1895
   527
            SDL_ShadowSurface =
slouken@1895
   528
                SDL_CreateRGBSurface(0, width, height,
slouken@1895
   529
                                     SDL_VideoSurface->format->BitsPerPixel,
slouken@1895
   530
                                     SDL_VideoSurface->format->Rmask,
slouken@1895
   531
                                     SDL_VideoSurface->format->Gmask,
slouken@1895
   532
                                     SDL_VideoSurface->format->Bmask,
slouken@1895
   533
                                     SDL_VideoSurface->format->Amask);
slouken@1895
   534
        } else {
slouken@1895
   535
            SDL_ShadowSurface =
slouken@1895
   536
                SDL_CreateRGBSurface(0, width, height, bpp, 0, 0, 0, 0);
slouken@1895
   537
        }
slouken@1895
   538
        if (!SDL_ShadowSurface) {
slouken@1895
   539
            return NULL;
slouken@1895
   540
        }
slouken@1895
   541
        SDL_ShadowSurface->flags |= surface_flags;
slouken@1895
   542
slouken@1895
   543
        /* 8-bit SDL_ShadowSurface surfaces report that they have exclusive palette */
slouken@1895
   544
        if (SDL_ShadowSurface->format->palette) {
slouken@1895
   545
            SDL_ShadowSurface->flags |= SDL_HWPALETTE;
slouken@1895
   546
            if (SDL_VideoSurface->format->palette) {
slouken@1895
   547
                SDL_SetSurfacePalette(SDL_ShadowSurface,
slouken@1895
   548
                                      SDL_VideoSurface->format->palette);
slouken@1895
   549
            } else {
slouken@1895
   550
                SDL_DitherColors(SDL_ShadowSurface->format->palette->colors,
slouken@1895
   551
                                 SDL_ShadowSurface->format->BitsPerPixel);
slouken@1895
   552
            }
slouken@1895
   553
        }
slouken@1895
   554
    }
slouken@1895
   555
    SDL_PublicSurface =
slouken@1895
   556
        (SDL_ShadowSurface ? SDL_ShadowSurface : SDL_VideoSurface);
slouken@1895
   557
slouken@1895
   558
    /* Clear the surface for display */
slouken@1895
   559
    SDL_FillRect(SDL_PublicSurface, NULL, 0);
slouken@1897
   560
    SDL_UpdateRect(SDL_PublicSurface, 0, 0, 0, 0);
slouken@1895
   561
slouken@1895
   562
    /* We're finally done! */
slouken@1895
   563
    return SDL_PublicSurface;
slouken@1895
   564
}
slouken@1895
   565
slouken@1895
   566
SDL_Surface *
slouken@1895
   567
SDL_GetVideoSurface(void)
slouken@1895
   568
{
slouken@1895
   569
    return SDL_PublicSurface;
slouken@1895
   570
}
slouken@1895
   571
slouken@1895
   572
SDL_Surface *
slouken@1895
   573
SDL_DisplayFormat(SDL_Surface * surface)
slouken@1895
   574
{
slouken@1895
   575
    Uint32 flags;
slouken@1895
   576
slouken@1895
   577
    if (!SDL_PublicSurface) {
slouken@1895
   578
        SDL_SetError("No video mode has been set");
slouken@1895
   579
        return NULL;
slouken@1895
   580
    }
slouken@1895
   581
slouken@1895
   582
    /* Set the flags appropriate for copying to display surface */
slouken@1895
   583
    flags = SDL_SWSURFACE;
slouken@1895
   584
#ifdef AUTORLE_DISPLAYFORMAT
slouken@1895
   585
    flags |= (surface->flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA));
slouken@1895
   586
    flags |= SDL_RLEACCELOK;
slouken@1895
   587
#else
slouken@1895
   588
    flags |=
slouken@1895
   589
        surface->flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA | SDL_RLEACCELOK);
slouken@1895
   590
#endif
slouken@1895
   591
    return SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags);
slouken@1895
   592
}
slouken@1895
   593
slouken@1895
   594
SDL_Surface *
slouken@1895
   595
SDL_DisplayFormatAlpha(SDL_Surface * surface)
slouken@1895
   596
{
slouken@1895
   597
    SDL_PixelFormat *vf;
slouken@1895
   598
    SDL_PixelFormat *format;
slouken@1895
   599
    SDL_Surface *converted;
slouken@1895
   600
    Uint32 flags;
slouken@1895
   601
    /* default to ARGB8888 */
slouken@1895
   602
    Uint32 amask = 0xff000000;
slouken@1895
   603
    Uint32 rmask = 0x00ff0000;
slouken@1895
   604
    Uint32 gmask = 0x0000ff00;
slouken@1895
   605
    Uint32 bmask = 0x000000ff;
slouken@1895
   606
slouken@1895
   607
    if (!SDL_PublicSurface) {
slouken@1895
   608
        SDL_SetError("No video mode has been set");
slouken@1895
   609
        return NULL;
slouken@1895
   610
    }
slouken@1895
   611
    vf = SDL_PublicSurface->format;
slouken@1895
   612
slouken@1895
   613
    switch (vf->BytesPerPixel) {
slouken@1895
   614
    case 2:
slouken@1895
   615
        /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}.
slouken@1895
   616
           For anything else (like ARGB4444) it doesn't matter
slouken@1895
   617
           since we have no special code for it anyway */
slouken@1895
   618
        if ((vf->Rmask == 0x1f) &&
slouken@1895
   619
            (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) {
slouken@1895
   620
            rmask = 0xff;
slouken@1895
   621
            bmask = 0xff0000;
slouken@1895
   622
        }
slouken@1895
   623
        break;
slouken@1895
   624
slouken@1895
   625
    case 3:
slouken@1895
   626
    case 4:
slouken@1895
   627
        /* Keep the video format, as long as the high 8 bits are
slouken@1895
   628
           unused or alpha */
slouken@1895
   629
        if ((vf->Rmask == 0xff) && (vf->Bmask == 0xff0000)) {
slouken@1895
   630
            rmask = 0xff;
slouken@1895
   631
            bmask = 0xff0000;
slouken@1895
   632
        }
slouken@1895
   633
        break;
slouken@1895
   634
slouken@1895
   635
    default:
slouken@1895
   636
        /* We have no other optimised formats right now. When/if a new
slouken@1895
   637
           optimised alpha format is written, add the converter here */
slouken@1895
   638
        break;
slouken@1895
   639
    }
slouken@1895
   640
    format = SDL_AllocFormat(32, rmask, gmask, bmask, amask);
slouken@1895
   641
    flags = SDL_PublicSurface->flags & SDL_HWSURFACE;
slouken@1895
   642
    flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK);
slouken@1895
   643
    converted = SDL_ConvertSurface(surface, format, flags);
slouken@1895
   644
    SDL_FreeFormat(format);
slouken@1895
   645
    return converted;
slouken@1895
   646
}
slouken@1895
   647
slouken@1895
   648
int
slouken@1895
   649
SDL_Flip(SDL_Surface * screen)
slouken@1895
   650
{
slouken@1895
   651
    SDL_UpdateRect(screen, 0, 0, 0, 0);
slouken@1895
   652
    return 0;
slouken@1895
   653
}
slouken@1895
   654
slouken@1895
   655
void
slouken@1895
   656
SDL_UpdateRect(SDL_Surface * screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h)
slouken@1895
   657
{
slouken@1895
   658
    if (screen) {
slouken@1895
   659
        SDL_Rect rect;
slouken@1895
   660
slouken@1895
   661
        /* Fill the rectangle */
slouken@1897
   662
        rect.x = (int) x;
slouken@1897
   663
        rect.y = (int) y;
slouken@1897
   664
        rect.w = (int) (w ? w : screen->w);
slouken@1897
   665
        rect.h = (int) (h ? h : screen->h);
slouken@1895
   666
        SDL_UpdateRects(screen, 1, &rect);
slouken@1895
   667
    }
slouken@1895
   668
}
slouken@1895
   669
void
slouken@1895
   670
SDL_UpdateRects(SDL_Surface * screen, int numrects, SDL_Rect * rects)
slouken@1895
   671
{
slouken@1895
   672
    int i;
slouken@1895
   673
slouken@1895
   674
    if (screen == SDL_ShadowSurface) {
slouken@1895
   675
        for (i = 0; i < numrects; ++i) {
slouken@1895
   676
            SDL_LowerBlit(SDL_ShadowSurface, &rects[i], SDL_VideoSurface,
slouken@1895
   677
                          &rects[i]);
slouken@1895
   678
        }
slouken@1895
   679
slouken@1895
   680
        /* Fall through to video surface update */
slouken@1895
   681
        screen = SDL_VideoSurface;
slouken@1895
   682
    }
slouken@1895
   683
    if (screen == SDL_VideoSurface) {
slouken@1965
   684
        if (SDL_VideoRendererInfo.flags & SDL_RENDERER_PRESENTCOPY) {
slouken@1907
   685
            for (i = 0; i < numrects; ++i) {
slouken@1985
   686
                SDL_RenderCopy(SDL_VideoTexture, &rects[i], &rects[i]);
slouken@1907
   687
            }
slouken@1907
   688
        } else {
slouken@1907
   689
            SDL_Rect rect;
slouken@1907
   690
            rect.x = 0;
slouken@1907
   691
            rect.y = 0;
slouken@1907
   692
            rect.w = screen->w;
slouken@1907
   693
            rect.h = screen->h;
slouken@1985
   694
            SDL_RenderCopy(SDL_VideoTexture, &rect, &rect);
slouken@1895
   695
        }
slouken@1895
   696
        SDL_RenderPresent();
slouken@1895
   697
    }
slouken@1895
   698
}
slouken@1895
   699
slouken@1895
   700
void
slouken@1895
   701
SDL_WM_SetCaption(const char *title, const char *icon)
slouken@1895
   702
{
slouken@1895
   703
    if (wm_title) {
slouken@1895
   704
        SDL_free(wm_title);
slouken@2037
   705
    }
slouken@2037
   706
    if (title) {
slouken@2037
   707
        wm_title = SDL_strdup(title);
slouken@1895
   708
    } else {
slouken@2037
   709
        wm_title = NULL;
slouken@1895
   710
    }
slouken@1895
   711
    SDL_SetWindowTitle(SDL_VideoWindow, wm_title);
slouken@1895
   712
}
slouken@1895
   713
slouken@1895
   714
void
slouken@2037
   715
SDL_WM_GetCaption(const char **title, const char **icon)
slouken@1895
   716
{
slouken@1895
   717
    if (title) {
slouken@1895
   718
        *title = wm_title;
slouken@1895
   719
    }
slouken@1895
   720
    if (icon) {
slouken@1895
   721
        *icon = "";
slouken@1895
   722
    }
slouken@1895
   723
}
slouken@1895
   724
slouken@1895
   725
void
slouken@1895
   726
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
slouken@1895
   727
{
slouken@1895
   728
    /* FIXME */
slouken@1895
   729
}
slouken@1895
   730
slouken@1895
   731
int
slouken@1895
   732
SDL_WM_IconifyWindow(void)
slouken@1895
   733
{
slouken@1895
   734
    SDL_MinimizeWindow(SDL_VideoWindow);
slouken@1895
   735
    return 0;
slouken@1895
   736
}
slouken@1895
   737
slouken@1895
   738
int
slouken@1895
   739
SDL_WM_ToggleFullScreen(SDL_Surface * surface)
slouken@1895
   740
{
slouken@1895
   741
    if (SDL_GetWindowFlags(SDL_VideoWindow) & SDL_WINDOW_FULLSCREEN) {
slouken@1895
   742
        if (SDL_SetWindowFullscreen(SDL_VideoWindow, 0) < 0) {
slouken@1895
   743
            return 0;
slouken@1895
   744
        }
slouken@1895
   745
        SDL_PublicSurface->flags &= ~SDL_FULLSCREEN;
slouken@1895
   746
    } else {
slouken@1895
   747
        if (SDL_SetWindowFullscreen(SDL_VideoWindow, 1) < 0) {
slouken@1895
   748
            return 0;
slouken@1895
   749
        }
slouken@1895
   750
        SDL_PublicSurface->flags |= SDL_FULLSCREEN;
slouken@1895
   751
    }
slouken@1895
   752
    return 1;
slouken@1895
   753
}
slouken@1895
   754
slouken@1895
   755
SDL_GrabMode
slouken@1895
   756
SDL_WM_GrabInput(SDL_GrabMode mode)
slouken@1895
   757
{
slouken@1895
   758
    if (mode != SDL_GRAB_QUERY) {
slouken@1895
   759
        SDL_SetWindowGrab(SDL_VideoWindow, mode);
slouken@1895
   760
    }
slouken@1895
   761
    return (SDL_GrabMode) SDL_GetWindowGrab(SDL_VideoWindow);
slouken@1895
   762
}
slouken@1895
   763
slouken@1895
   764
void
slouken@1895
   765
SDL_WarpMouse(Uint16 x, Uint16 y)
slouken@1895
   766
{
slouken@1895
   767
    SDL_WarpMouseInWindow(SDL_VideoWindow, x, y);
slouken@1895
   768
}
slouken@1895
   769
slouken@1895
   770
Uint8
slouken@1895
   771
SDL_GetAppState(void)
slouken@1895
   772
{
slouken@1895
   773
    Uint8 state = 0;
slouken@1895
   774
    Uint32 flags = 0;
slouken@1895
   775
slouken@1895
   776
    flags = SDL_GetWindowFlags(SDL_VideoWindow);
slouken@1895
   777
    if ((flags & SDL_WINDOW_SHOWN) && !(flags & SDL_WINDOW_MINIMIZED)) {
slouken@1895
   778
        state |= SDL_APPACTIVE;
slouken@1895
   779
    }
slouken@1895
   780
    if (flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@1895
   781
        state |= SDL_APPINPUTFOCUS;
slouken@1895
   782
    }
slouken@1895
   783
    if (flags & SDL_WINDOW_MOUSE_FOCUS) {
slouken@1895
   784
        state |= SDL_APPMOUSEFOCUS;
slouken@1895
   785
    }
slouken@1895
   786
    return state;
slouken@1895
   787
}
slouken@1895
   788
slouken@1895
   789
const SDL_version *
slouken@1895
   790
SDL_Linked_Version(void)
slouken@1895
   791
{
slouken@1895
   792
    static SDL_version version;
slouken@1895
   793
    SDL_VERSION(&version);
slouken@1895
   794
    return &version;
slouken@1895
   795
}
slouken@1895
   796
slouken@1895
   797
int
slouken@1895
   798
SDL_SetPalette(SDL_Surface * surface, int flags, const SDL_Color * colors,
slouken@1895
   799
               int firstcolor, int ncolors)
slouken@1895
   800
{
slouken@1895
   801
    return SDL_SetColors(surface, colors, firstcolor, ncolors);
slouken@1895
   802
}
slouken@1895
   803
slouken@1895
   804
int
slouken@1895
   805
SDL_SetColors(SDL_Surface * surface, const SDL_Color * colors, int firstcolor,
slouken@1895
   806
              int ncolors)
slouken@1895
   807
{
slouken@1895
   808
    if (SDL_SetPaletteColors
slouken@1895
   809
        (surface->format->palette, colors, firstcolor, ncolors) == 0) {
slouken@1895
   810
        return 1;
slouken@1895
   811
    } else {
slouken@1895
   812
        return 0;
slouken@1895
   813
    }
slouken@1895
   814
}
slouken@1895
   815
slouken@1895
   816
int
slouken@1895
   817
SDL_GetWMInfo(SDL_SysWMinfo * info)
slouken@1895
   818
{
slouken@1895
   819
    return SDL_GetWindowWMInfo(SDL_VideoWindow, info);
slouken@1895
   820
}
slouken@1895
   821
slouken@1895
   822
#if 0
slouken@1895
   823
void
slouken@1895
   824
SDL_MoveCursor(int x, int y)
slouken@1895
   825
{
slouken@1895
   826
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
   827
slouken@1895
   828
    /* Erase and update the current mouse position */
slouken@1895
   829
    if (SHOULD_DRAWCURSOR(SDL_cursorstate)) {
slouken@1895
   830
        /* Erase and redraw mouse cursor in new position */
slouken@1895
   831
        SDL_LockCursor();
slouken@1895
   832
        SDL_EraseCursor(SDL_VideoSurface);
slouken@1895
   833
        SDL_cursor->area.x = (x - SDL_cursor->hot_x);
slouken@1895
   834
        SDL_cursor->area.y = (y - SDL_cursor->hot_y);
slouken@1895
   835
        SDL_DrawCursor(SDL_VideoSurface);
slouken@1895
   836
        SDL_UnlockCursor();
slouken@1895
   837
    } else if (_this->MoveWMCursor) {
slouken@1895
   838
        _this->MoveWMCursor(_this, x, y);
slouken@1895
   839
    }
slouken@1895
   840
}
slouken@1895
   841
slouken@1895
   842
/* Keep track of the current cursor colors */
slouken@1895
   843
static int palette_changed = 1;
slouken@1895
   844
static Uint8 pixels8[2];
slouken@1895
   845
slouken@1895
   846
void
slouken@1895
   847
SDL_CursorPaletteChanged(void)
slouken@1895
   848
{
slouken@1895
   849
    palette_changed = 1;
slouken@1895
   850
}
slouken@1895
   851
slouken@1895
   852
void
slouken@1895
   853
SDL_MouseRect(SDL_Rect * area)
slouken@1895
   854
{
slouken@1895
   855
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
   856
    int clip_diff;
slouken@1895
   857
slouken@1895
   858
    *area = SDL_cursor->area;
slouken@1895
   859
    if (area->x < 0) {
slouken@1895
   860
        area->w += area->x;
slouken@1895
   861
        area->x = 0;
slouken@1895
   862
    }
slouken@1895
   863
    if (area->y < 0) {
slouken@1895
   864
        area->h += area->y;
slouken@1895
   865
        area->y = 0;
slouken@1895
   866
    }
slouken@1895
   867
    clip_diff = (area->x + area->w) - SDL_VideoSurface->w;
slouken@1895
   868
    if (clip_diff > 0) {
slouken@1895
   869
        area->w = area->w < clip_diff ? 0 : area->w - clip_diff;
slouken@1895
   870
    }
slouken@1895
   871
    clip_diff = (area->y + area->h) - SDL_VideoSurface->h;
slouken@1895
   872
    if (clip_diff > 0) {
slouken@1895
   873
        area->h = area->h < clip_diff ? 0 : area->h - clip_diff;
slouken@1895
   874
    }
slouken@1895
   875
}
slouken@1895
   876
slouken@1895
   877
static void
slouken@1895
   878
SDL_DrawCursorFast(SDL_Surface * screen, SDL_Rect * area)
slouken@1895
   879
{
slouken@1895
   880
    const Uint32 pixels[2] = { 0xFFFFFFFF, 0x00000000 };
slouken@1895
   881
    int i, w, h;
slouken@1895
   882
    Uint8 *data, datab;
slouken@1895
   883
    Uint8 *mask, maskb;
slouken@1895
   884
slouken@1895
   885
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
slouken@1895
   886
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
slouken@1895
   887
    switch (screen->format->BytesPerPixel) {
slouken@1895
   888
slouken@1895
   889
    case 1:
slouken@1895
   890
        {
slouken@1895
   891
            Uint8 *dst;
slouken@1895
   892
            int dstskip;
slouken@1895
   893
slouken@1895
   894
            if (palette_changed) {
slouken@1895
   895
                pixels8[0] =
slouken@1895
   896
                    (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
slouken@1895
   897
                pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
slouken@1895
   898
                palette_changed = 0;
slouken@1895
   899
            }
slouken@1895
   900
            dst = (Uint8 *) screen->pixels +
slouken@1895
   901
                (SDL_cursor->area.y + area->y) * screen->pitch +
slouken@1895
   902
                SDL_cursor->area.x;
slouken@1895
   903
            dstskip = screen->pitch - area->w;
slouken@1895
   904
slouken@1895
   905
            for (h = area->h; h; h--) {
slouken@1895
   906
                for (w = area->w / 8; w; w--) {
slouken@1895
   907
                    maskb = *mask++;
slouken@1895
   908
                    datab = *data++;
slouken@1895
   909
                    for (i = 0; i < 8; ++i) {
slouken@1895
   910
                        if (maskb & 0x80) {
slouken@1895
   911
                            *dst = pixels8[datab >> 7];
slouken@1895
   912
                        }
slouken@1895
   913
                        maskb <<= 1;
slouken@1895
   914
                        datab <<= 1;
slouken@1895
   915
                        dst++;
slouken@1895
   916
                    }
slouken@1895
   917
                }
slouken@1895
   918
                dst += dstskip;
slouken@1895
   919
            }
slouken@1895
   920
        }
slouken@1895
   921
        break;
slouken@1895
   922
slouken@1895
   923
    case 2:
slouken@1895
   924
        {
slouken@1895
   925
            Uint16 *dst;
slouken@1895
   926
            int dstskip;
slouken@1895
   927
slouken@1895
   928
            dst = (Uint16 *) screen->pixels +
slouken@1895
   929
                (SDL_cursor->area.y + area->y) * screen->pitch / 2 +
slouken@1895
   930
                SDL_cursor->area.x;
slouken@1895
   931
            dstskip = (screen->pitch / 2) - area->w;
slouken@1895
   932
slouken@1895
   933
            for (h = area->h; h; h--) {
slouken@1895
   934
                for (w = area->w / 8; w; w--) {
slouken@1895
   935
                    maskb = *mask++;
slouken@1895
   936
                    datab = *data++;
slouken@1895
   937
                    for (i = 0; i < 8; ++i) {
slouken@1895
   938
                        if (maskb & 0x80) {
slouken@1895
   939
                            *dst = (Uint16) pixels[datab >> 7];
slouken@1895
   940
                        }
slouken@1895
   941
                        maskb <<= 1;
slouken@1895
   942
                        datab <<= 1;
slouken@1895
   943
                        dst++;
slouken@1895
   944
                    }
slouken@1895
   945
                }
slouken@1895
   946
                dst += dstskip;
slouken@1895
   947
            }
slouken@1895
   948
        }
slouken@1895
   949
        break;
slouken@1895
   950
slouken@1895
   951
    case 3:
slouken@1895
   952
        {
slouken@1895
   953
            Uint8 *dst;
slouken@1895
   954
            int dstskip;
slouken@1895
   955
slouken@1895
   956
            dst = (Uint8 *) screen->pixels +
slouken@1895
   957
                (SDL_cursor->area.y + area->y) * screen->pitch +
slouken@1895
   958
                SDL_cursor->area.x * 3;
slouken@1895
   959
            dstskip = screen->pitch - area->w * 3;
slouken@1895
   960
slouken@1895
   961
            for (h = area->h; h; h--) {
slouken@1895
   962
                for (w = area->w / 8; w; w--) {
slouken@1895
   963
                    maskb = *mask++;
slouken@1895
   964
                    datab = *data++;
slouken@1895
   965
                    for (i = 0; i < 8; ++i) {
slouken@1895
   966
                        if (maskb & 0x80) {
slouken@1895
   967
                            SDL_memset(dst, pixels[datab >> 7], 3);
slouken@1895
   968
                        }
slouken@1895
   969
                        maskb <<= 1;
slouken@1895
   970
                        datab <<= 1;
slouken@1895
   971
                        dst += 3;
slouken@1895
   972
                    }
slouken@1895
   973
                }
slouken@1895
   974
                dst += dstskip;
slouken@1895
   975
            }
slouken@1895
   976
        }
slouken@1895
   977
        break;
slouken@1895
   978
slouken@1895
   979
    case 4:
slouken@1895
   980
        {
slouken@1895
   981
            Uint32 *dst;
slouken@1895
   982
            int dstskip;
slouken@1895
   983
slouken@1895
   984
            dst = (Uint32 *) screen->pixels +
slouken@1895
   985
                (SDL_cursor->area.y + area->y) * screen->pitch / 4 +
slouken@1895
   986
                SDL_cursor->area.x;
slouken@1895
   987
            dstskip = (screen->pitch / 4) - area->w;
slouken@1895
   988
slouken@1895
   989
            for (h = area->h; h; h--) {
slouken@1895
   990
                for (w = area->w / 8; w; w--) {
slouken@1895
   991
                    maskb = *mask++;
slouken@1895
   992
                    datab = *data++;
slouken@1895
   993
                    for (i = 0; i < 8; ++i) {
slouken@1895
   994
                        if (maskb & 0x80) {
slouken@1895
   995
                            *dst = pixels[datab >> 7];
slouken@1895
   996
                        }
slouken@1895
   997
                        maskb <<= 1;
slouken@1895
   998
                        datab <<= 1;
slouken@1895
   999
                        dst++;
slouken@1895
  1000
                    }
slouken@1895
  1001
                }
slouken@1895
  1002
                dst += dstskip;
slouken@1895
  1003
            }
slouken@1895
  1004
        }
slouken@1895
  1005
        break;
slouken@1895
  1006
    }
slouken@1895
  1007
}
slouken@1895
  1008
slouken@1895
  1009
static void
slouken@1895
  1010
SDL_DrawCursorSlow(SDL_Surface * screen, SDL_Rect * area)
slouken@1895
  1011
{
slouken@1895
  1012
    const Uint32 pixels[2] = { 0xFFFFFF, 0x000000 };
slouken@1895
  1013
    int h;
slouken@1895
  1014
    int x, minx, maxx;
slouken@1895
  1015
    Uint8 *data, datab = 0;
slouken@1895
  1016
    Uint8 *mask, maskb = 0;
slouken@1895
  1017
    Uint8 *dst;
slouken@1895
  1018
    int dstbpp, dstskip;
slouken@1895
  1019
slouken@1895
  1020
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
slouken@1895
  1021
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
slouken@1895
  1022
    dstbpp = screen->format->BytesPerPixel;
slouken@1895
  1023
    dst = (Uint8 *) screen->pixels +
slouken@1895
  1024
        (SDL_cursor->area.y + area->y) * screen->pitch +
slouken@1895
  1025
        SDL_cursor->area.x * dstbpp;
slouken@1895
  1026
    dstskip = screen->pitch - SDL_cursor->area.w * dstbpp;
slouken@1895
  1027
slouken@1895
  1028
    minx = area->x;
slouken@1895
  1029
    maxx = area->x + area->w;
slouken@1895
  1030
    if (screen->format->BytesPerPixel == 1) {
slouken@1895
  1031
        if (palette_changed) {
slouken@1895
  1032
            pixels8[0] = (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
slouken@1895
  1033
            pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
slouken@1895
  1034
            palette_changed = 0;
slouken@1895
  1035
        }
slouken@1895
  1036
        for (h = area->h; h; h--) {
slouken@1895
  1037
            for (x = 0; x < SDL_cursor->area.w; ++x) {
slouken@1895
  1038
                if ((x % 8) == 0) {
slouken@1895
  1039
                    maskb = *mask++;
slouken@1895
  1040
                    datab = *data++;
slouken@1895
  1041
                }
slouken@1895
  1042
                if ((x >= minx) && (x < maxx)) {
slouken@1895
  1043
                    if (maskb & 0x80) {
slouken@1895
  1044
                        SDL_memset(dst, pixels8[datab >> 7], dstbpp);
slouken@1895
  1045
                    }
slouken@1895
  1046
                }
slouken@1895
  1047
                maskb <<= 1;
slouken@1895
  1048
                datab <<= 1;
slouken@1895
  1049
                dst += dstbpp;
slouken@1895
  1050
            }
slouken@1895
  1051
            dst += dstskip;
slouken@1895
  1052
        }
slouken@1895
  1053
    } else {
slouken@1895
  1054
        for (h = area->h; h; h--) {
slouken@1895
  1055
            for (x = 0; x < SDL_cursor->area.w; ++x) {
slouken@1895
  1056
                if ((x % 8) == 0) {
slouken@1895
  1057
                    maskb = *mask++;
slouken@1895
  1058
                    datab = *data++;
slouken@1895
  1059
                }
slouken@1895
  1060
                if ((x >= minx) && (x < maxx)) {
slouken@1895
  1061
                    if (maskb & 0x80) {
slouken@1895
  1062
                        SDL_memset(dst, pixels[datab >> 7], dstbpp);
slouken@1895
  1063
                    }
slouken@1895
  1064
                }
slouken@1895
  1065
                maskb <<= 1;
slouken@1895
  1066
                datab <<= 1;
slouken@1895
  1067
                dst += dstbpp;
slouken@1895
  1068
            }
slouken@1895
  1069
            dst += dstskip;
slouken@1895
  1070
        }
slouken@1895
  1071
    }
slouken@1895
  1072
}
slouken@1895
  1073
slouken@1895
  1074
/* This handles the ugly work of converting the saved cursor background from
slouken@1895
  1075
   the pixel format of the shadow surface to that of the video surface.
slouken@1895
  1076
   This is only necessary when blitting from a shadow surface of a different
slouken@1895
  1077
   pixel format than the video surface, and using a software rendered cursor.
slouken@1895
  1078
*/
slouken@1895
  1079
static void
slouken@1895
  1080
SDL_ConvertCursorSave(SDL_Surface * screen, int w, int h)
slouken@1895
  1081
{
slouken@1895
  1082
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
  1083
    SDL_BlitInfo info;
slouken@1895
  1084
    SDL_loblit RunBlit;
slouken@1895
  1085
slouken@1895
  1086
    /* Make sure we can steal the blit mapping */
slouken@1895
  1087
    if (screen->map->dst != SDL_VideoSurface) {
slouken@1895
  1088
        return;
slouken@1895
  1089
    }
slouken@1895
  1090
slouken@1895
  1091
    /* Set up the blit information */
slouken@1895
  1092
    info.s_pixels = SDL_cursor->save[1];
slouken@1895
  1093
    info.s_width = w;
slouken@1895
  1094
    info.s_height = h;
slouken@1895
  1095
    info.s_skip = 0;
slouken@1895
  1096
    info.d_pixels = SDL_cursor->save[0];
slouken@1895
  1097
    info.d_width = w;
slouken@1895
  1098
    info.d_height = h;
slouken@1895
  1099
    info.d_skip = 0;
slouken@1895
  1100
    info.aux_data = screen->map->sw_data->aux_data;
slouken@1895
  1101
    info.src = screen->format;
slouken@1895
  1102
    info.table = screen->map->table;
slouken@1895
  1103
    info.dst = SDL_VideoSurface->format;
slouken@1895
  1104
    RunBlit = screen->map->sw_data->blit;
slouken@1895
  1105
slouken@1895
  1106
    /* Run the actual software blit */
slouken@1895
  1107
    RunBlit(&info);
slouken@1895
  1108
}
slouken@1895
  1109
slouken@1895
  1110
void
slouken@1895
  1111
SDL_DrawCursorNoLock(SDL_Surface * screen)
slouken@1895
  1112
{
slouken@1895
  1113
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
  1114
    SDL_Rect area;
slouken@1895
  1115
slouken@1895
  1116
    /* Get the mouse rectangle, clipped to the screen */
slouken@1895
  1117
    SDL_MouseRect(&area);
slouken@1895
  1118
    if ((area.w == 0) || (area.h == 0)) {
slouken@1895
  1119
        return;
slouken@1895
  1120
    }
slouken@1895
  1121
slouken@1895
  1122
    /* Copy mouse background */
slouken@1895
  1123
    {
slouken@1895
  1124
        int w, h, screenbpp;
slouken@1895
  1125
        Uint8 *src, *dst;
slouken@1895
  1126
slouken@1895
  1127
        /* Set up the copy pointers */
slouken@1895
  1128
        screenbpp = screen->format->BytesPerPixel;
slouken@1895
  1129
        if ((screen == SDL_VideoSurface) ||
slouken@1895
  1130
            FORMAT_EQUAL(screen->format, SDL_VideoSurface->format)) {
slouken@1895
  1131
            dst = SDL_cursor->save[0];
slouken@1895
  1132
        } else {
slouken@1895
  1133
            dst = SDL_cursor->save[1];
slouken@1895
  1134
        }
slouken@1895
  1135
        src = (Uint8 *) screen->pixels + area.y * screen->pitch +
slouken@1895
  1136
            area.x * screenbpp;
slouken@1895
  1137
slouken@1895
  1138
        /* Perform the copy */
slouken@1895
  1139
        w = area.w * screenbpp;
slouken@1895
  1140
        h = area.h;
slouken@1895
  1141
        while (h--) {
slouken@1895
  1142
            SDL_memcpy(dst, src, w);
slouken@1895
  1143
            dst += w;
slouken@1895
  1144
            src += screen->pitch;
slouken@1895
  1145
        }
slouken@1895
  1146
    }
slouken@1895
  1147
slouken@1895
  1148
    /* Draw the mouse cursor */
slouken@1895
  1149
    area.x -= SDL_cursor->area.x;
slouken@1895
  1150
    area.y -= SDL_cursor->area.y;
slouken@1895
  1151
    if ((area.x == 0) && (area.w == SDL_cursor->area.w)) {
slouken@1895
  1152
        SDL_DrawCursorFast(screen, &area);
slouken@1895
  1153
    } else {
slouken@1895
  1154
        SDL_DrawCursorSlow(screen, &area);
slouken@1895
  1155
    }
slouken@1895
  1156
}
slouken@1895
  1157
slouken@1895
  1158
void
slouken@1895
  1159
SDL_DrawCursor(SDL_Surface * screen)
slouken@1895
  1160
{
slouken@1895
  1161
    /* Lock the screen if necessary */
slouken@1895
  1162
    if (screen == NULL) {
slouken@1895
  1163
        return;
slouken@1895
  1164
    }
slouken@1895
  1165
    if (SDL_MUSTLOCK(screen)) {
slouken@1895
  1166
        if (SDL_LockSurface(screen) < 0) {
slouken@1895
  1167
            return;
slouken@1895
  1168
        }
slouken@1895
  1169
    }
slouken@1895
  1170
slouken@1895
  1171
    SDL_DrawCursorNoLock(screen);
slouken@1895
  1172
slouken@1895
  1173
    /* Unlock the screen and update if necessary */
slouken@1895
  1174
    if (SDL_MUSTLOCK(screen)) {
slouken@1895
  1175
        SDL_UnlockSurface(screen);
slouken@1895
  1176
    }
slouken@1895
  1177
    if ((screen->flags & SDL_SCREEN_SURFACE) &&
slouken@1895
  1178
        !(screen->flags & SDL_HWSURFACE)) {
slouken@1895
  1179
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
  1180
        SDL_Window *window;
slouken@1895
  1181
        SDL_Rect area;
slouken@1895
  1182
slouken@1895
  1183
        window = SDL_GetWindowFromSurface(screen);
slouken@1895
  1184
        if (!window) {
slouken@1895
  1185
            return;
slouken@1895
  1186
        }
slouken@1895
  1187
slouken@1895
  1188
        SDL_MouseRect(&area);
slouken@1895
  1189
slouken@1895
  1190
        if (_this->UpdateWindowSurface) {
slouken@1895
  1191
            _this->UpdateWindowSurface(_this, window, 1, &area);
slouken@1895
  1192
        }
slouken@1895
  1193
    }
slouken@1895
  1194
}
slouken@1895
  1195
slouken@1895
  1196
void
slouken@1895
  1197
SDL_EraseCursorNoLock(SDL_Surface * screen)
slouken@1895
  1198
{
slouken@1895
  1199
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
  1200
    SDL_Window *window;
slouken@1895
  1201
    SDL_Rect area;
slouken@1895
  1202
slouken@1895
  1203
    /* Get the window associated with the surface */
slouken@1895
  1204
    window = SDL_GetWindowFromSurface(screen);
slouken@1895
  1205
    if (!window || !window->surface) {
slouken@1895
  1206
        return;
slouken@1895
  1207
    }
slouken@1895
  1208
slouken@1895
  1209
    /* Get the mouse rectangle, clipped to the screen */
slouken@1895
  1210
    SDL_MouseRect(&area);
slouken@1895
  1211
    if ((area.w == 0) || (area.h == 0)) {
slouken@1895
  1212
        return;
slouken@1895
  1213
    }
slouken@1895
  1214
slouken@1895
  1215
    /* Copy mouse background */
slouken@1895
  1216
    {
slouken@1895
  1217
        int w, h, screenbpp;
slouken@1895
  1218
        Uint8 *src, *dst;
slouken@1895
  1219
slouken@1895
  1220
        /* Set up the copy pointers */
slouken@1895
  1221
        screenbpp = screen->format->BytesPerPixel;
slouken@1895
  1222
        if ((screen->flags & SDL_SCREEN_SURFACE) ||
slouken@1895
  1223
            FORMAT_EQUAL(screen->format, window->surface->format)) {
slouken@1895
  1224
            src = SDL_cursor->save[0];
slouken@1895
  1225
        } else {
slouken@1895
  1226
            src = SDL_cursor->save[1];
slouken@1895
  1227
        }
slouken@1895
  1228
        dst = (Uint8 *) screen->pixels + area.y * screen->pitch +
slouken@1895
  1229
            area.x * screenbpp;
slouken@1895
  1230
slouken@1895
  1231
        /* Perform the copy */
slouken@1895
  1232
        w = area.w * screenbpp;
slouken@1895
  1233
        h = area.h;
slouken@1895
  1234
        while (h--) {
slouken@1895
  1235
            SDL_memcpy(dst, src, w);
slouken@1895
  1236
            src += w;
slouken@1895
  1237
            dst += screen->pitch;
slouken@1895
  1238
        }
slouken@1895
  1239
slouken@1895
  1240
        /* Perform pixel conversion on cursor background */
slouken@1895
  1241
        if (src > SDL_cursor->save[1]) {
slouken@1895
  1242
            SDL_ConvertCursorSave(screen, area.w, area.h);
slouken@1895
  1243
        }
slouken@1895
  1244
    }
slouken@1895
  1245
}
slouken@1895
  1246
slouken@1895
  1247
void
slouken@1895
  1248
SDL_EraseCursor(SDL_Surface * screen)
slouken@1895
  1249
{
slouken@1895
  1250
    /* Lock the screen if necessary */
slouken@1895
  1251
    if (screen == NULL) {
slouken@1895
  1252
        return;
slouken@1895
  1253
    }
slouken@1895
  1254
    if (SDL_MUSTLOCK(screen)) {
slouken@1895
  1255
        if (SDL_LockSurface(screen) < 0) {
slouken@1895
  1256
            return;
slouken@1895
  1257
        }
slouken@1895
  1258
    }
slouken@1895
  1259
slouken@1895
  1260
    SDL_EraseCursorNoLock(screen);
slouken@1895
  1261
slouken@1895
  1262
    /* Unlock the screen and update if necessary */
slouken@1895
  1263
    if (SDL_MUSTLOCK(screen)) {
slouken@1895
  1264
        SDL_UnlockSurface(screen);
slouken@1895
  1265
    }
slouken@1895
  1266
    if ((screen->flags & SDL_SCREEN_SURFACE) &&
slouken@1895
  1267
        !(screen->flags & SDL_HWSURFACE)) {
slouken@1895
  1268
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
  1269
        SDL_Window *window;
slouken@1895
  1270
        SDL_Rect area;
slouken@1895
  1271
slouken@1895
  1272
        window = SDL_GetWindowFromSurface(screen);
slouken@1895
  1273
        if (!window) {
slouken@1895
  1274
            return;
slouken@1895
  1275
        }
slouken@1895
  1276
slouken@1895
  1277
        SDL_MouseRect(&area);
slouken@1895
  1278
slouken@1895
  1279
        if (_this->UpdateWindowSurface) {
slouken@1895
  1280
            _this->UpdateWindowSurface(_this, window, 1, &area);
slouken@1895
  1281
        }
slouken@1895
  1282
    }
slouken@1895
  1283
}
slouken@1895
  1284
slouken@1895
  1285
/* Reset the cursor on video mode change
slouken@1895
  1286
   FIXME:  Keep track of all cursors, and reset them all.
slouken@1895
  1287
 */
slouken@1895
  1288
void
slouken@1895
  1289
SDL_ResetCursor(void)
slouken@1895
  1290
{
slouken@1895
  1291
    int savelen;
slouken@1895
  1292
slouken@1895
  1293
    if (SDL_cursor) {
slouken@1895
  1294
        savelen = SDL_cursor->area.w * 4 * SDL_cursor->area.h;
slouken@1895
  1295
        SDL_cursor->area.x = 0;
slouken@1895
  1296
        SDL_cursor->area.y = 0;
slouken@1895
  1297
        SDL_memset(SDL_cursor->save[0], 0, savelen);
slouken@1895
  1298
    }
slouken@1895
  1299
}
slouken@1895
  1300
#endif
slouken@1895
  1301
slouken@1895
  1302
struct private_yuvhwdata
slouken@1895
  1303
{
slouken@1895
  1304
    Uint16 pitches[3];
slouken@1895
  1305
    Uint8 *planes[3];
slouken@1895
  1306
slouken@1895
  1307
    SDL_TextureID textureID;
slouken@1895
  1308
};
slouken@1895
  1309
slouken@1895
  1310
SDL_Overlay *
slouken@1895
  1311
SDL_CreateYUVOverlay(int w, int h, Uint32 format, SDL_Surface * display)
slouken@1895
  1312
{
slouken@1895
  1313
    SDL_Overlay *overlay;
slouken@1895
  1314
    Uint32 texture_format;
slouken@1895
  1315
slouken@1895
  1316
    if ((display->flags & SDL_OPENGL) == SDL_OPENGL) {
slouken@1895
  1317
        SDL_SetError("YUV overlays are not supported in OpenGL mode");
slouken@1895
  1318
        return NULL;
slouken@1895
  1319
    }
slouken@1895
  1320
slouken@1895
  1321
    if (display != SDL_PublicSurface) {
slouken@1895
  1322
        SDL_SetError("YUV display is only supported on the screen surface");
slouken@1895
  1323
        return NULL;
slouken@1895
  1324
    }
slouken@1895
  1325
slouken@1895
  1326
    switch (format) {
slouken@1895
  1327
    case SDL_YV12_OVERLAY:
slouken@1965
  1328
        texture_format = SDL_PIXELFORMAT_YV12;
slouken@1895
  1329
        break;
slouken@1895
  1330
    case SDL_IYUV_OVERLAY:
slouken@1965
  1331
        texture_format = SDL_PIXELFORMAT_IYUV;
slouken@1895
  1332
        break;
slouken@1895
  1333
    case SDL_YUY2_OVERLAY:
slouken@1965
  1334
        texture_format = SDL_PIXELFORMAT_YUY2;
slouken@1895
  1335
        break;
slouken@1895
  1336
    case SDL_UYVY_OVERLAY:
slouken@1965
  1337
        texture_format = SDL_PIXELFORMAT_UYVY;
slouken@1895
  1338
        break;
slouken@1895
  1339
    case SDL_YVYU_OVERLAY:
slouken@1965
  1340
        texture_format = SDL_PIXELFORMAT_YVYU;
slouken@1895
  1341
        break;
slouken@1895
  1342
    default:
slouken@1895
  1343
        SDL_SetError("Unknown YUV format");
slouken@1895
  1344
        return NULL;
slouken@1895
  1345
    }
slouken@1895
  1346
slouken@1895
  1347
    overlay = (SDL_Overlay *) SDL_malloc(sizeof(*overlay));
slouken@1895
  1348
    if (!overlay) {
slouken@1895
  1349
        SDL_OutOfMemory();
slouken@1895
  1350
        return NULL;
slouken@1895
  1351
    }
slouken@1895
  1352
    SDL_zerop(overlay);
slouken@1895
  1353
slouken@1895
  1354
    overlay->hwdata =
slouken@1895
  1355
        (struct private_yuvhwdata *) SDL_malloc(sizeof(*overlay->hwdata));
slouken@1895
  1356
    if (!overlay->hwdata) {
slouken@1895
  1357
        SDL_free(overlay);
slouken@1895
  1358
        SDL_OutOfMemory();
slouken@1895
  1359
        return NULL;
slouken@1895
  1360
    }
slouken@1895
  1361
slouken@1895
  1362
    overlay->format = format;
slouken@1895
  1363
    overlay->w = w;
slouken@1895
  1364
    overlay->h = h;
slouken@1895
  1365
    if (format == SDL_YV12_OVERLAY || format == SDL_IYUV_OVERLAY) {
slouken@1895
  1366
        overlay->planes = 3;
slouken@1895
  1367
    } else {
slouken@1895
  1368
        overlay->planes = 1;
slouken@1895
  1369
    }
slouken@1895
  1370
    overlay->pitches = overlay->hwdata->pitches;
slouken@1895
  1371
    overlay->pixels = overlay->hwdata->planes;
slouken@1895
  1372
slouken@1895
  1373
    switch (format) {
slouken@1895
  1374
    case SDL_YV12_OVERLAY:
slouken@1895
  1375
    case SDL_IYUV_OVERLAY:
slouken@1895
  1376
        overlay->pitches[0] = overlay->w;
slouken@1895
  1377
        overlay->pitches[1] = overlay->w / 2;
slouken@1895
  1378
        overlay->pitches[2] = overlay->w / 2;
slouken@1895
  1379
        break;
slouken@1895
  1380
    case SDL_YUY2_OVERLAY:
slouken@1895
  1381
    case SDL_UYVY_OVERLAY:
slouken@1895
  1382
    case SDL_YVYU_OVERLAY:
slouken@1895
  1383
        overlay->pitches[0] = overlay->w * 2;
slouken@1895
  1384
        break;
slouken@1895
  1385
    }
slouken@1895
  1386
slouken@1895
  1387
    overlay->hwdata->textureID =
slouken@1965
  1388
        SDL_CreateTexture(texture_format, SDL_TEXTUREACCESS_LOCAL, w, h);
slouken@1895
  1389
    if (!overlay->hwdata->textureID) {
slouken@1895
  1390
        SDL_FreeYUVOverlay(overlay);
slouken@1895
  1391
        return NULL;
slouken@1895
  1392
    }
slouken@1895
  1393
slouken@1895
  1394
    return overlay;
slouken@1895
  1395
}
slouken@1895
  1396
slouken@1895
  1397
int
slouken@1895
  1398
SDL_LockYUVOverlay(SDL_Overlay * overlay)
slouken@1895
  1399
{
slouken@1895
  1400
    void *pixels;
slouken@1895
  1401
    int pitch;
slouken@1895
  1402
    if (SDL_LockTexture(overlay->hwdata->textureID, NULL, 1, &pixels, &pitch)
slouken@1895
  1403
        < 0) {
slouken@1895
  1404
        return -1;
slouken@1895
  1405
    }
slouken@1895
  1406
    switch (overlay->format) {
slouken@1895
  1407
    case SDL_YV12_OVERLAY:
slouken@1895
  1408
    case SDL_IYUV_OVERLAY:
slouken@1895
  1409
        overlay->pixels[0] = (Uint8 *) pixels;
slouken@1895
  1410
        overlay->pixels[1] =
slouken@1895
  1411
            overlay->pixels[0] + overlay->pitches[0] * overlay->h;
slouken@1895
  1412
        overlay->pixels[2] =
slouken@1895
  1413
            overlay->pixels[1] + overlay->pitches[1] * overlay->h;
slouken@1895
  1414
        break;
slouken@1895
  1415
    case SDL_YUY2_OVERLAY:
slouken@1895
  1416
    case SDL_UYVY_OVERLAY:
slouken@1895
  1417
    case SDL_YVYU_OVERLAY:
slouken@1895
  1418
        overlay->pixels[0] = (Uint8 *) pixels;
slouken@1895
  1419
        break;
slouken@1895
  1420
    }
slouken@1895
  1421
    return 0;
slouken@1895
  1422
}
slouken@1895
  1423
slouken@1895
  1424
void
slouken@1895
  1425
SDL_UnlockYUVOverlay(SDL_Overlay * overlay)
slouken@1895
  1426
{
slouken@1895
  1427
    SDL_UnlockTexture(overlay->hwdata->textureID);
slouken@1895
  1428
}
slouken@1895
  1429
slouken@1895
  1430
int
slouken@1895
  1431
SDL_DisplayYUVOverlay(SDL_Overlay * overlay, SDL_Rect * dstrect)
slouken@1895
  1432
{
slouken@1985
  1433
    if (SDL_RenderCopy(overlay->hwdata->textureID, NULL, dstrect) < 0) {
slouken@1895
  1434
        return -1;
slouken@1895
  1435
    }
slouken@1895
  1436
    SDL_RenderPresent();
slouken@1895
  1437
    return 0;
slouken@1895
  1438
}
slouken@1895
  1439
slouken@1895
  1440
void
slouken@1895
  1441
SDL_FreeYUVOverlay(SDL_Overlay * overlay)
slouken@1895
  1442
{
slouken@1895
  1443
    if (overlay) {
slouken@1895
  1444
        if (overlay->hwdata) {
slouken@1895
  1445
            if (overlay->hwdata->textureID) {
slouken@1895
  1446
                SDL_DestroyTexture(overlay->hwdata->textureID);
slouken@1895
  1447
            }
slouken@1895
  1448
            SDL_free(overlay->hwdata);
slouken@1895
  1449
        }
slouken@1895
  1450
        SDL_free(overlay);
slouken@1895
  1451
    }
slouken@1895
  1452
}
slouken@1895
  1453
slouken@1912
  1454
void
slouken@1912
  1455
SDL_GL_SwapBuffers(void)
slouken@1912
  1456
{
slouken@1912
  1457
    SDL_GL_SwapWindow(SDL_VideoWindow);
slouken@1912
  1458
}
slouken@1912
  1459
slouken@2129
  1460
slouken@2129
  1461
int
slouken@2129
  1462
SDL_EnableKeyRepeat(int delay, int interval)
slouken@2129
  1463
{
slouken@2129
  1464
    return 0;
slouken@2129
  1465
}
slouken@2129
  1466
slouken@2129
  1467
void
slouken@2129
  1468
SDL_GetKeyRepeat(int *delay, int *interval)
slouken@2129
  1469
{
slouken@2129
  1470
    if (delay) {
slouken@2129
  1471
        *delay = SDL_DEFAULT_REPEAT_DELAY;
slouken@2129
  1472
    }
slouken@2129
  1473
    if (interval) {
slouken@2129
  1474
        *interval = SDL_DEFAULT_REPEAT_INTERVAL;
slouken@2129
  1475
    }
slouken@2129
  1476
}
slouken@2129
  1477
slouken@1895
  1478
/* vi: set ts=4 sw=4 expandtab: */