src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Sat, 19 Sep 2009 13:29:40 +0000
changeset 3280 00cace2d9080
parent 3276 720d176be107
child 3283 1ed5d432e468
permissions -rw-r--r--
Merged a cleaned up version of Jiang's code changes from Google Summer of Code 2009
slouken@0
     1
/*
slouken@0
     2
    SDL - Simple DirectMedia Layer
slouken@2859
     3
    Copyright (C) 1997-2009 Sam Lantinga
slouken@0
     4
slouken@0
     5
    This library is free software; you can redistribute it and/or
slouken@1312
     6
    modify it under the terms of the GNU Lesser General Public
slouken@0
     7
    License as published by the Free Software Foundation; either
slouken@1312
     8
    version 2.1 of the License, or (at your option) any later version.
slouken@0
     9
slouken@0
    10
    This library is distributed in the hope that it will be useful,
slouken@0
    11
    but WITHOUT ANY WARRANTY; without even the implied warranty of
slouken@0
    12
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
slouken@1312
    13
    Lesser General Public License for more details.
slouken@0
    14
slouken@1312
    15
    You should have received a copy of the GNU Lesser General Public
slouken@1312
    16
    License along with this library; if not, write to the Free Software
slouken@1312
    17
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
slouken@0
    18
slouken@0
    19
    Sam Lantinga
slouken@252
    20
    slouken@libsdl.org
slouken@0
    21
*/
slouken@1402
    22
#include "SDL_config.h"
slouken@0
    23
slouken@0
    24
/* The high-level video driver subsystem */
slouken@0
    25
slouken@2999
    26
#include "SDL.h"
slouken@2984
    27
#include "SDL_video.h"
slouken@0
    28
#include "SDL_sysvideo.h"
slouken@0
    29
#include "SDL_blit.h"
slouken@0
    30
#include "SDL_pixels_c.h"
slouken@1918
    31
#include "SDL_renderer_gl.h"
hfutrell@2745
    32
#include "SDL_renderer_gles.h"
slouken@1895
    33
#include "SDL_renderer_sw.h"
slouken@1361
    34
#include "../events/SDL_sysevents.h"
slouken@1361
    35
#include "../events/SDL_events_c.h"
slouken@0
    36
hfutrell@2745
    37
#if SDL_VIDEO_OPENGL_ES
hfutrell@2745
    38
#include "SDL_opengles.h"
slouken@2753
    39
#endif /* SDL_VIDEO_OPENGL_ES */
hfutrell@2745
    40
slouken@1926
    41
#if SDL_VIDEO_OPENGL
slouken@1926
    42
#include "SDL_opengl.h"
slouken@1926
    43
slouken@1926
    44
/* On Windows, windows.h defines CreateWindow */
slouken@1926
    45
#ifdef CreateWindow
slouken@1926
    46
#undef CreateWindow
slouken@1926
    47
#endif
slouken@2753
    48
#endif /* SDL_VIDEO_OPENGL */
slouken@1926
    49
slouken@0
    50
/* Available video drivers */
lestat@3166
    51
static VideoBootStrap *bootstrap[] = {
slouken@1931
    52
#if SDL_VIDEO_DRIVER_COCOA
slouken@2753
    53
    &COCOA_bootstrap,
icculus@1133
    54
#endif
slouken@1361
    55
#if SDL_VIDEO_DRIVER_X11
slouken@2753
    56
    &X11_bootstrap,
slouken@0
    57
#endif
slouken@1361
    58
#if SDL_VIDEO_DRIVER_FBCON
slouken@2753
    59
    &FBCON_bootstrap,
slouken@0
    60
#endif
slouken@1361
    61
#if SDL_VIDEO_DRIVER_DIRECTFB
slouken@2753
    62
    &DirectFB_bootstrap,
slouken@167
    63
#endif
slouken@1361
    64
#if SDL_VIDEO_DRIVER_PS2GS
slouken@2753
    65
    &PS2GS_bootstrap,
slouken@0
    66
#endif
slouken@3257
    67
#if SDL_VIDEO_DRIVER_PS3
slouken@3257
    68
    &PS3_bootstrap,
slouken@3257
    69
#endif
slouken@1361
    70
#if SDL_VIDEO_DRIVER_SVGALIB
slouken@2753
    71
    &SVGALIB_bootstrap,
slouken@0
    72
#endif
slouken@1361
    73
#if SDL_VIDEO_DRIVER_GAPI
slouken@2753
    74
    &GAPI_bootstrap,
slouken@1361
    75
#endif
slouken@1895
    76
#if SDL_VIDEO_DRIVER_WIN32
slouken@2753
    77
    &WIN32_bootstrap,
slouken@1361
    78
#endif
slouken@1361
    79
#if SDL_VIDEO_DRIVER_BWINDOW
slouken@2753
    80
    &BWINDOW_bootstrap,
slouken@1361
    81
#endif
slouken@1361
    82
#if SDL_VIDEO_DRIVER_PHOTON
slouken@3083
    83
    &photon_bootstrap,
slouken@3083
    84
#endif
slouken@3083
    85
#if SDL_VIDEO_DRIVER_QNXGF
slouken@3083
    86
    &qnxgf_bootstrap,
slouken@1361
    87
#endif
slouken@1361
    88
#if SDL_VIDEO_DRIVER_EPOC
slouken@2753
    89
    &EPOC_bootstrap,
slouken@1361
    90
#endif
slouken@1361
    91
#if SDL_VIDEO_DRIVER_XBIOS
slouken@2753
    92
    &XBIOS_bootstrap,
slouken@1361
    93
#endif
slouken@1361
    94
#if SDL_VIDEO_DRIVER_GEM
slouken@2753
    95
    &GEM_bootstrap,
slouken@1361
    96
#endif
slouken@1361
    97
#if SDL_VIDEO_DRIVER_RISCOS
slouken@2753
    98
    &RISCOS_bootstrap,
slouken@1361
    99
#endif
hfutrell@2743
   100
#if SDL_VIDEO_DRIVER_NDS
slouken@2753
   101
    &NDS_bootstrap,
slouken@2735
   102
#endif
hfutrell@2745
   103
#if SDL_VIDEO_DRIVER_UIKIT
slouken@2753
   104
    &UIKIT_bootstrap,
hfutrell@2745
   105
#endif
slouken@1361
   106
#if SDL_VIDEO_DRIVER_DUMMY
slouken@2753
   107
    &DUMMY_bootstrap,
slouken@610
   108
#endif
slouken@3161
   109
#if SDL_VIDEO_DRIVER_PANDORA
slouken@3161
   110
    &PND_bootstrap,
slouken@3161
   111
#endif
slouken@2753
   112
    NULL
slouken@0
   113
};
slouken@173
   114
slouken@1895
   115
static SDL_VideoDevice *_this = NULL;
slouken@0
   116
slouken@0
   117
/* Various local functions */
slouken@2876
   118
static void SDL_UpdateWindowGrab(SDL_Window * window);
slouken@0
   119
slouken@1895
   120
static int
slouken@1895
   121
cmpmodes(const void *A, const void *B)
slouken@1895
   122
{
slouken@2753
   123
    SDL_DisplayMode a = *(const SDL_DisplayMode *) A;
slouken@2753
   124
    SDL_DisplayMode b = *(const SDL_DisplayMode *) B;
slouken@0
   125
slouken@2753
   126
    if (a.w != b.w) {
slouken@2753
   127
        return b.w - a.w;
slouken@2753
   128
    }
slouken@2753
   129
    if (a.h != b.h) {
slouken@2753
   130
        return b.h - a.h;
slouken@2753
   131
    }
slouken@2753
   132
    if (SDL_BITSPERPIXEL(a.format) != SDL_BITSPERPIXEL(b.format)) {
slouken@2753
   133
        return SDL_BITSPERPIXEL(b.format) - SDL_BITSPERPIXEL(a.format);
slouken@2753
   134
    }
lestat@3178
   135
    if (SDL_PIXELLAYOUT(a.format) != SDL_PIXELLAYOUT(b.format)) {
lestat@3178
   136
        return SDL_PIXELLAYOUT(b.format) - SDL_PIXELLAYOUT(a.format);
lestat@3178
   137
    }
slouken@2753
   138
    if (a.refresh_rate != b.refresh_rate) {
slouken@2753
   139
        return b.refresh_rate - a.refresh_rate;
slouken@2753
   140
    }
slouken@2753
   141
    return 0;
slouken@1895
   142
}
slouken@1895
   143
slouken@1912
   144
static void
slouken@1912
   145
SDL_UninitializedVideo()
slouken@1912
   146
{
slouken@2753
   147
    SDL_SetError("Video subsystem has not been initialized");
slouken@1912
   148
}
slouken@1912
   149
slouken@1895
   150
int
slouken@1895
   151
SDL_GetNumVideoDrivers(void)
slouken@1895
   152
{
slouken@2753
   153
    return SDL_arraysize(bootstrap) - 1;
slouken@1895
   154
}
slouken@1895
   155
slouken@2753
   156
const char *
slouken@1895
   157
SDL_GetVideoDriver(int index)
slouken@1895
   158
{
slouken@2753
   159
    if (index >= 0 && index < SDL_GetNumVideoDrivers()) {
slouken@2753
   160
        return bootstrap[index]->name;
slouken@2753
   161
    }
slouken@2753
   162
    return NULL;
slouken@1895
   163
}
slouken@0
   164
slouken@0
   165
/*
slouken@0
   166
 * Initialize the video and event subsystems -- determine native pixel format
slouken@0
   167
 */
slouken@1895
   168
int
slouken@1895
   169
SDL_VideoInit(const char *driver_name, Uint32 flags)
slouken@0
   170
{
slouken@2753
   171
    SDL_VideoDevice *video;
slouken@2753
   172
    int index;
slouken@2753
   173
    int i;
slouken@0
   174
slouken@2753
   175
    /* Toggle the event thread flags, based on OS requirements */
slouken@0
   176
#if defined(MUST_THREAD_EVENTS)
slouken@2753
   177
    flags |= SDL_INIT_EVENTTHREAD;
slouken@0
   178
#elif defined(CANT_THREAD_EVENTS)
slouken@2753
   179
    if ((flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD) {
slouken@2753
   180
        SDL_SetError("OS doesn't support threaded events");
slouken@2753
   181
        return -1;
slouken@2753
   182
    }
slouken@0
   183
#endif
slouken@0
   184
slouken@2753
   185
    /* Start the event loop */
slouken@2753
   186
    if (SDL_StartEventLoop(flags) < 0) {
slouken@2753
   187
        return -1;
slouken@2753
   188
    }
slouken@2753
   189
    /* Check to make sure we don't overwrite '_this' */
slouken@2753
   190
    if (_this != NULL) {
slouken@2753
   191
        SDL_VideoQuit();
slouken@2753
   192
    }
slouken@2753
   193
    /* Select the proper video driver */
slouken@2753
   194
    index = 0;
slouken@2753
   195
    video = NULL;
slouken@2753
   196
    if (driver_name == NULL) {
slouken@2753
   197
        driver_name = SDL_getenv("SDL_VIDEODRIVER");
slouken@2753
   198
    }
slouken@2753
   199
    if (driver_name != NULL) {
slouken@2753
   200
        for (i = 0; bootstrap[i]; ++i) {
slouken@2753
   201
            if (SDL_strcasecmp(bootstrap[i]->name, driver_name) == 0) {
slouken@2753
   202
                if (bootstrap[i]->available()) {
slouken@2753
   203
                    video = bootstrap[i]->create(index);
slouken@2753
   204
                }
slouken@2753
   205
                break;
slouken@2753
   206
            }
slouken@2753
   207
        }
slouken@2753
   208
    } else {
slouken@2753
   209
        for (i = 0; bootstrap[i]; ++i) {
slouken@2753
   210
            if (bootstrap[i]->available()) {
slouken@2753
   211
                video = bootstrap[i]->create(index);
slouken@2753
   212
                if (video != NULL) {
slouken@2753
   213
                    break;
slouken@2753
   214
                }
slouken@2753
   215
            }
slouken@2753
   216
        }
slouken@2753
   217
    }
slouken@2753
   218
    if (video == NULL) {
slouken@2753
   219
        if (driver_name) {
slouken@2753
   220
            SDL_SetError("%s not available", driver_name);
slouken@2753
   221
        } else {
slouken@2753
   222
            SDL_SetError("No available video device");
slouken@2753
   223
        }
slouken@2753
   224
        return -1;
slouken@2753
   225
    }
slouken@2753
   226
    _this = video;
slouken@2753
   227
    _this->name = bootstrap[i]->name;
slouken@2753
   228
    _this->next_object_id = 1;
slouken@0
   229
slouken@0
   230
slouken@2753
   231
    /* Set some very sane GL defaults */
slouken@2753
   232
    _this->gl_config.driver_loaded = 0;
slouken@2753
   233
    _this->gl_config.dll_handle = NULL;
slouken@2753
   234
    _this->gl_config.red_size = 3;
slouken@2753
   235
    _this->gl_config.green_size = 3;
slouken@2753
   236
    _this->gl_config.blue_size = 2;
slouken@2753
   237
    _this->gl_config.alpha_size = 0;
slouken@2753
   238
    _this->gl_config.buffer_size = 0;
slouken@2753
   239
    _this->gl_config.depth_size = 16;
slouken@2753
   240
    _this->gl_config.stencil_size = 0;
slouken@2753
   241
    _this->gl_config.double_buffer = 1;
slouken@2753
   242
    _this->gl_config.accum_red_size = 0;
slouken@2753
   243
    _this->gl_config.accum_green_size = 0;
slouken@2753
   244
    _this->gl_config.accum_blue_size = 0;
slouken@2753
   245
    _this->gl_config.accum_alpha_size = 0;
slouken@2753
   246
    _this->gl_config.stereo = 0;
slouken@2753
   247
    _this->gl_config.multisamplebuffers = 0;
slouken@2753
   248
    _this->gl_config.multisamplesamples = 0;
slouken@2753
   249
    _this->gl_config.retained_backing = 1;
slouken@2753
   250
    _this->gl_config.accelerated = -1;  /* not known, don't set */
slouken@3100
   251
    _this->gl_config.major_version = 2;
slouken@3100
   252
    _this->gl_config.minor_version = 1;
slouken@0
   253
slouken@2753
   254
    /* Initialize the video subsystem */
slouken@2753
   255
    if (_this->VideoInit(_this) < 0) {
slouken@2753
   256
        SDL_VideoQuit();
slouken@2753
   257
        return -1;
slouken@2753
   258
    }
slouken@2753
   259
    /* Make sure some displays were added */
slouken@2753
   260
    if (_this->num_displays == 0) {
slouken@2753
   261
        SDL_SetError("The video driver did not add any displays");
slouken@2753
   262
        SDL_VideoQuit();
slouken@2753
   263
        return (-1);
slouken@2753
   264
    }
slouken@2753
   265
    /* The software renderer is always available */
slouken@2753
   266
    for (i = 0; i < _this->num_displays; ++i) {
hfutrell@2744
   267
#if SDL_VIDEO_RENDER_OGL
slouken@2753
   268
        SDL_AddRenderDriver(i, &GL_RenderDriver);
hfutrell@2744
   269
#endif
hfutrell@2745
   270
hfutrell@2745
   271
#if SDL_VIDEO_RENDER_OGL_ES
slouken@2753
   272
        SDL_AddRenderDriver(i, &GL_ES_RenderDriver);
hfutrell@2745
   273
#endif
slouken@2753
   274
        if (_this->displays[i].num_render_drivers > 0) {
slouken@2753
   275
            SDL_AddRenderDriver(i, &SW_RenderDriver);
slouken@2753
   276
        }
slouken@2753
   277
    }
slouken@0
   278
slouken@2753
   279
    /* We're ready to go! */
slouken@2753
   280
    return 0;
slouken@0
   281
}
slouken@0
   282
slouken@2753
   283
const char *
slouken@1895
   284
SDL_GetCurrentVideoDriver()
slouken@0
   285
{
slouken@2753
   286
    if (!_this) {
slouken@2753
   287
        SDL_UninitializedVideo();
slouken@2753
   288
        return NULL;
slouken@2753
   289
    }
slouken@2753
   290
    return _this->name;
slouken@0
   291
}
slouken@0
   292
slouken@1895
   293
SDL_VideoDevice *
slouken@1895
   294
SDL_GetVideoDevice()
slouken@0
   295
{
slouken@2753
   296
    return _this;
slouken@0
   297
}
slouken@0
   298
slouken@1895
   299
int
slouken@1895
   300
SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode)
slouken@0
   301
{
slouken@2753
   302
    SDL_VideoDisplay display;
slouken@0
   303
slouken@2753
   304
    SDL_zero(display);
slouken@2753
   305
    if (desktop_mode) {
slouken@2753
   306
        display.desktop_mode = *desktop_mode;
slouken@2753
   307
    }
slouken@2753
   308
    display.current_mode = display.desktop_mode;
slouken@1895
   309
slouken@2753
   310
    return SDL_AddVideoDisplay(&display);
slouken@0
   311
}
slouken@0
   312
slouken@1895
   313
int
slouken@1895
   314
SDL_AddVideoDisplay(const SDL_VideoDisplay * display)
slouken@0
   315
{
slouken@2753
   316
    SDL_VideoDisplay *displays;
slouken@2753
   317
    int index = -1;
slouken@0
   318
slouken@2753
   319
    displays =
slouken@2753
   320
        SDL_realloc(_this->displays,
slouken@2753
   321
                    (_this->num_displays + 1) * sizeof(*displays));
slouken@2753
   322
    if (displays) {
slouken@2753
   323
        index = _this->num_displays++;
slouken@2753
   324
        displays[index] = *display;
slouken@2753
   325
        displays[index].device = _this;
slouken@2753
   326
        _this->displays = displays;
slouken@2753
   327
    } else {
slouken@2753
   328
        SDL_OutOfMemory();
slouken@2753
   329
    }
slouken@2753
   330
    return index;
slouken@0
   331
}
slouken@0
   332
slouken@1895
   333
int
slouken@1895
   334
SDL_GetNumVideoDisplays(void)
slouken@0
   335
{
slouken@2753
   336
    if (!_this) {
slouken@2753
   337
        SDL_UninitializedVideo();
slouken@2753
   338
        return 0;
slouken@2753
   339
    }
slouken@2753
   340
    return _this->num_displays;
slouken@0
   341
}
slouken@0
   342
slouken@1895
   343
int
slouken@1895
   344
SDL_SelectVideoDisplay(int index)
slouken@0
   345
{
slouken@2753
   346
    if (!_this) {
slouken@2753
   347
        SDL_UninitializedVideo();
slouken@2753
   348
        return (-1);
slouken@2753
   349
    }
slouken@2753
   350
    if (index < 0 || index >= _this->num_displays) {
slouken@2753
   351
        SDL_SetError("index must be in the range 0 - %d",
slouken@2753
   352
                     _this->num_displays - 1);
slouken@2753
   353
        return -1;
slouken@2753
   354
    }
slouken@2753
   355
    _this->current_display = index;
slouken@2753
   356
    return 0;
slouken@1963
   357
}
slouken@1963
   358
slouken@1963
   359
int
slouken@1963
   360
SDL_GetCurrentVideoDisplay(void)
slouken@1963
   361
{
slouken@2753
   362
    if (!_this) {
slouken@2753
   363
        SDL_UninitializedVideo();
slouken@2753
   364
        return (-1);
slouken@2753
   365
    }
slouken@2753
   366
    return _this->current_display;
slouken@0
   367
}
slouken@0
   368
slouken@1895
   369
SDL_bool
slouken@1895
   370
SDL_AddDisplayMode(int displayIndex, const SDL_DisplayMode * mode)
slouken@0
   371
{
slouken@2753
   372
    SDL_VideoDisplay *display = &_this->displays[displayIndex];
slouken@2753
   373
    SDL_DisplayMode *modes;
slouken@2753
   374
    int i, nmodes;
slouken@0
   375
slouken@2753
   376
    /* Make sure we don't already have the mode in the list */
slouken@2753
   377
    modes = display->display_modes;
slouken@2753
   378
    nmodes = display->num_display_modes;
slouken@2753
   379
    for (i = nmodes; i--;) {
slouken@2753
   380
        if (SDL_memcmp(mode, &modes[i], sizeof(*mode)) == 0) {
slouken@2753
   381
            return SDL_FALSE;
slouken@2753
   382
        }
slouken@2753
   383
    }
slouken@1895
   384
slouken@2753
   385
    /* Go ahead and add the new mode */
slouken@2753
   386
    if (nmodes == display->max_display_modes) {
slouken@2753
   387
        modes =
slouken@2753
   388
            SDL_realloc(modes,
slouken@2753
   389
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@2753
   390
        if (!modes) {
slouken@2753
   391
            return SDL_FALSE;
slouken@2753
   392
        }
slouken@2753
   393
        display->display_modes = modes;
slouken@2753
   394
        display->max_display_modes += 32;
slouken@2753
   395
    }
slouken@2753
   396
    modes[nmodes] = *mode;
slouken@2753
   397
    display->num_display_modes++;
slouken@1895
   398
lestat@3178
   399
    /* Re-sort video modes */
lestat@3178
   400
    SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3186
   401
              sizeof(SDL_DisplayMode), cmpmodes);
lestat@3178
   402
slouken@2753
   403
    return SDL_TRUE;
slouken@0
   404
}
slouken@0
   405
slouken@1895
   406
int
slouken@1895
   407
SDL_GetNumDisplayModes()
slouken@0
   408
{
slouken@2753
   409
    if (_this) {
slouken@2753
   410
        SDL_VideoDisplay *display = &SDL_CurrentDisplay;
slouken@2753
   411
        if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@2753
   412
            _this->GetDisplayModes(_this);
slouken@2753
   413
            SDL_qsort(display->display_modes, display->num_display_modes,
slouken@2753
   414
                      sizeof(SDL_DisplayMode), cmpmodes);
slouken@2753
   415
        }
slouken@2753
   416
        return display->num_display_modes;
slouken@2753
   417
    }
slouken@2753
   418
    return 0;
slouken@0
   419
}
slouken@0
   420
slouken@1967
   421
int
slouken@1967
   422
SDL_GetDisplayMode(int index, SDL_DisplayMode * mode)
slouken@0
   423
{
slouken@2753
   424
    if (index < 0 || index >= SDL_GetNumDisplayModes()) {
slouken@2753
   425
        SDL_SetError("index must be in the range of 0 - %d",
slouken@2753
   426
                     SDL_GetNumDisplayModes() - 1);
slouken@2753
   427
        return -1;
slouken@2753
   428
    }
slouken@2753
   429
    if (mode) {
slouken@2753
   430
        *mode = SDL_CurrentDisplay.display_modes[index];
slouken@2753
   431
    }
slouken@2753
   432
    return 0;
slouken@0
   433
}
slouken@0
   434
slouken@1967
   435
int
slouken@1967
   436
SDL_GetDesktopDisplayMode(SDL_DisplayMode * mode)
slouken@0
   437
{
slouken@2753
   438
    if (!_this) {
slouken@2753
   439
        SDL_UninitializedVideo();
slouken@2753
   440
        return -1;
slouken@2753
   441
    }
slouken@2753
   442
    if (mode) {
slouken@2753
   443
        *mode = SDL_CurrentDisplay.desktop_mode;
slouken@2753
   444
    }
slouken@2753
   445
    return 0;
slouken@0
   446
}
slouken@0
   447
slouken@1967
   448
int
slouken@1967
   449
SDL_GetCurrentDisplayMode(SDL_DisplayMode * mode)
slouken@0
   450
{
slouken@2753
   451
    if (!_this) {
slouken@2753
   452
        SDL_UninitializedVideo();
slouken@2753
   453
        return -1;
slouken@2753
   454
    }
slouken@2753
   455
    if (mode) {
slouken@2753
   456
        *mode = SDL_CurrentDisplay.current_mode;
slouken@2753
   457
    }
slouken@2753
   458
    return 0;
slouken@0
   459
}
slouken@0
   460
slouken@1895
   461
SDL_DisplayMode *
slouken@1895
   462
SDL_GetClosestDisplayMode(const SDL_DisplayMode * mode,
slouken@2753
   463
                          SDL_DisplayMode * closest)
slouken@0
   464
{
slouken@2753
   465
    Uint32 target_format;
slouken@2753
   466
    int target_refresh_rate;
slouken@2753
   467
    int i;
slouken@2753
   468
    SDL_DisplayMode *current, *match;
slouken@0
   469
slouken@2753
   470
    if (!_this || !mode || !closest) {
slouken@2753
   471
        return NULL;
slouken@2753
   472
    }
slouken@2753
   473
    /* Default to the desktop format */
slouken@2753
   474
    if (mode->format) {
slouken@2753
   475
        target_format = mode->format;
slouken@2753
   476
    } else {
slouken@2753
   477
        target_format = SDL_CurrentDisplay.desktop_mode.format;
slouken@2753
   478
    }
slouken@0
   479
slouken@2753
   480
    /* Default to the desktop refresh rate */
slouken@2753
   481
    if (mode->refresh_rate) {
slouken@2753
   482
        target_refresh_rate = mode->refresh_rate;
slouken@2753
   483
    } else {
slouken@2753
   484
        target_refresh_rate = SDL_CurrentDisplay.desktop_mode.refresh_rate;
slouken@2753
   485
    }
slouken@0
   486
slouken@2753
   487
    match = NULL;
slouken@2753
   488
    for (i = 0; i < SDL_GetNumDisplayModes(); ++i) {
slouken@2753
   489
        current = &SDL_CurrentDisplay.display_modes[i];
slouken@0
   490
slouken@2789
   491
        if (current->w && (current->w < mode->w)) {
slouken@2753
   492
            /* Out of sorted modes large enough here */
slouken@2753
   493
            break;
slouken@2753
   494
        }
slouken@2789
   495
        if (current->h && (current->h < mode->h)) {
slouken@2789
   496
            if (current->w && (current->w == mode->w)) {
slouken@2789
   497
                /* Out of sorted modes large enough here */
slouken@2789
   498
                break;
slouken@2789
   499
            }
slouken@2789
   500
            /* Wider, but not tall enough, due to a different
slouken@2789
   501
               aspect ratio. This mode must be skipped, but closer
slouken@2789
   502
               modes may still follow. */
slouken@2789
   503
            continue;
slouken@2789
   504
        }
slouken@2753
   505
        if (!match || current->w < match->w || current->h < match->h) {
slouken@2753
   506
            match = current;
slouken@2753
   507
            continue;
slouken@2753
   508
        }
slouken@2753
   509
        if (current->format != match->format) {
slouken@2753
   510
            /* Sorted highest depth to lowest */
slouken@2753
   511
            if (current->format == target_format ||
slouken@2753
   512
                (SDL_BITSPERPIXEL(current->format) >=
slouken@2753
   513
                 SDL_BITSPERPIXEL(target_format)
slouken@2753
   514
                 && SDL_PIXELTYPE(current->format) ==
slouken@2753
   515
                 SDL_PIXELTYPE(target_format))) {
slouken@2753
   516
                match = current;
slouken@2753
   517
            }
slouken@2753
   518
            continue;
slouken@2753
   519
        }
slouken@2753
   520
        if (current->refresh_rate != match->refresh_rate) {
slouken@2753
   521
            /* Sorted highest refresh to lowest */
slouken@2753
   522
            if (current->refresh_rate >= target_refresh_rate) {
slouken@2753
   523
                match = current;
slouken@2753
   524
            }
slouken@2753
   525
        }
slouken@2753
   526
    }
slouken@2753
   527
    if (match) {
slouken@2753
   528
        if (match->format) {
slouken@2753
   529
            closest->format = match->format;
slouken@2753
   530
        } else {
slouken@2753
   531
            closest->format = mode->format;
slouken@2753
   532
        }
slouken@2753
   533
        if (match->w && match->h) {
slouken@2753
   534
            closest->w = match->w;
slouken@2753
   535
            closest->h = match->h;
slouken@2753
   536
        } else {
slouken@2753
   537
            closest->w = mode->w;
slouken@2753
   538
            closest->h = mode->h;
slouken@2753
   539
        }
slouken@2753
   540
        if (match->refresh_rate) {
slouken@2753
   541
            closest->refresh_rate = match->refresh_rate;
slouken@2753
   542
        } else {
slouken@2753
   543
            closest->refresh_rate = mode->refresh_rate;
slouken@2753
   544
        }
slouken@2753
   545
        closest->driverdata = match->driverdata;
slouken@1895
   546
slouken@2753
   547
        /*
slouken@2753
   548
         * Pick some reasonable defaults if the app and driver don't
slouken@2753
   549
         * care
slouken@2753
   550
         */
slouken@2753
   551
        if (!closest->format) {
slouken@2753
   552
            closest->format = SDL_PIXELFORMAT_RGB888;
slouken@2753
   553
        }
slouken@2753
   554
        if (!closest->w) {
slouken@2753
   555
            closest->w = 640;
slouken@2753
   556
        }
slouken@2753
   557
        if (!closest->h) {
slouken@2753
   558
            closest->h = 480;
slouken@2753
   559
        }
slouken@2753
   560
        return closest;
slouken@2753
   561
    }
slouken@2753
   562
    return NULL;
slouken@0
   563
}
slouken@0
   564
slouken@1895
   565
int
slouken@1895
   566
SDL_SetDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   567
{
slouken@2753
   568
    SDL_VideoDisplay *display;
slouken@2753
   569
    SDL_DisplayMode display_mode;
slouken@2753
   570
    SDL_DisplayMode current_mode;
slouken@2753
   571
    int i, ncolors;
slouken@0
   572
slouken@2753
   573
    if (!_this) {
slouken@2753
   574
        SDL_UninitializedVideo();
slouken@2753
   575
        return -1;
slouken@2753
   576
    }
slouken@2753
   577
    display = &SDL_CurrentDisplay;
slouken@2753
   578
    if (!mode) {
slouken@2753
   579
        mode = &display->desktop_mode;
slouken@2753
   580
    }
slouken@2753
   581
    display_mode = *mode;
slouken@0
   582
slouken@2753
   583
    /* Default to the current mode */
slouken@2753
   584
    if (!display_mode.format) {
slouken@2753
   585
        display_mode.format = display->current_mode.format;
slouken@2753
   586
    }
slouken@2753
   587
    if (!display_mode.w) {
slouken@2753
   588
        display_mode.w = display->current_mode.w;
slouken@2753
   589
    }
slouken@2753
   590
    if (!display_mode.h) {
slouken@2753
   591
        display_mode.h = display->current_mode.h;
slouken@2753
   592
    }
slouken@2753
   593
    if (!display_mode.refresh_rate) {
slouken@2753
   594
        display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@2753
   595
    }
slouken@2753
   596
    /* Get a good video mode, the closest one possible */
slouken@2753
   597
    if (!SDL_GetClosestDisplayMode(&display_mode, &display_mode)) {
slouken@2753
   598
        SDL_SetError("No video mode large enough for %dx%d",
slouken@2753
   599
                     display_mode.w, display_mode.h);
slouken@2753
   600
        return -1;
slouken@2753
   601
    }
slouken@2753
   602
    /* See if there's anything left to do */
slouken@2753
   603
    SDL_GetCurrentDisplayMode(&current_mode);
slouken@2753
   604
    if (SDL_memcmp(&display_mode, &current_mode, sizeof(display_mode)) == 0) {
slouken@2753
   605
        return 0;
slouken@2753
   606
    }
slouken@2753
   607
    /* Actually change the display mode */
slouken@2753
   608
    if (_this->SetDisplayMode(_this, &display_mode) < 0) {
slouken@2753
   609
        return -1;
slouken@2753
   610
    }
slouken@2753
   611
    display->current_mode = display_mode;
slouken@1895
   612
slouken@2753
   613
    /* Set up a palette, if necessary */
slouken@2753
   614
    if (SDL_ISPIXELFORMAT_INDEXED(display_mode.format)) {
slouken@2753
   615
        ncolors = (1 << SDL_BITSPERPIXEL(display_mode.format));
slouken@2753
   616
    } else {
slouken@2753
   617
        ncolors = 0;
slouken@2753
   618
    }
slouken@2753
   619
    if ((!ncolors && display->palette) || (ncolors && !display->palette)
slouken@2753
   620
        || (ncolors && ncolors != display->palette->ncolors)) {
slouken@2753
   621
        if (display->palette) {
slouken@2753
   622
            SDL_FreePalette(display->palette);
slouken@2753
   623
            display->palette = NULL;
slouken@2753
   624
        }
slouken@2753
   625
        if (ncolors) {
slouken@2753
   626
            display->palette = SDL_AllocPalette(ncolors);
slouken@2753
   627
            if (!display->palette) {
slouken@2753
   628
                return -1;
slouken@2753
   629
            }
slouken@2753
   630
            SDL_DitherColors(display->palette->colors,
slouken@2753
   631
                             SDL_BITSPERPIXEL(display_mode.format));
slouken@2753
   632
        }
slouken@2753
   633
    }
slouken@2753
   634
    /* Move any fullscreen windows into position */
slouken@2753
   635
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
   636
        SDL_Window *window = &display->windows[i];
slouken@2753
   637
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2875
   638
            SDL_SetWindowPosition(window->id, window->x, window->y);
slouken@2753
   639
        }
slouken@2753
   640
    }
slouken@1895
   641
slouken@2753
   642
    return 0;
slouken@0
   643
}
slouken@0
   644
slouken@1895
   645
int
slouken@1895
   646
SDL_SetFullscreenDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   647
{
slouken@2753
   648
    SDL_VideoDisplay *display;
slouken@2753
   649
    SDL_DisplayMode fullscreen_mode;
slouken@2753
   650
    int i;
slouken@0
   651
slouken@2753
   652
    if (!_this) {
slouken@2753
   653
        SDL_UninitializedVideo();
slouken@2753
   654
        return -1;
slouken@2753
   655
    }
slouken@2753
   656
    display = &SDL_CurrentDisplay;
slouken@2753
   657
    if (!mode) {
slouken@2753
   658
        mode = &display->desktop_mode;
slouken@2753
   659
    }
slouken@2869
   660
    if (!SDL_GetClosestDisplayMode(mode, &fullscreen_mode)) {
slouken@2869
   661
        SDL_SetError("Couldn't find display mode match");
slouken@2869
   662
        return -1;
slouken@2869
   663
    }
slouken@3092
   664
slouken@2753
   665
    if (SDL_memcmp
slouken@2753
   666
        (&fullscreen_mode, &display->fullscreen_mode,
slouken@2753
   667
         sizeof(fullscreen_mode)) == 0) {
slouken@2753
   668
        /* Nothing to do... */
slouken@2753
   669
        return 0;
slouken@2753
   670
    }
slouken@2753
   671
    display->fullscreen_mode = fullscreen_mode;
slouken@0
   672
slouken@2753
   673
    /* Actually set the mode if we have a fullscreen window visible */
slouken@2753
   674
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
   675
        SDL_Window *window = &display->windows[i];
slouken@2753
   676
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
   677
            if (SDL_SetDisplayMode(&display->fullscreen_mode) < 0) {
slouken@2753
   678
                return -1;
slouken@2753
   679
            }
slouken@2753
   680
        }
slouken@2753
   681
        if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
   682
            SDL_OnWindowResized(window);
slouken@2753
   683
        }
slouken@2753
   684
    }
slouken@2753
   685
    return 0;
slouken@0
   686
}
slouken@0
   687
slouken@1967
   688
int
slouken@1967
   689
SDL_GetFullscreenDisplayMode(SDL_DisplayMode * mode)
slouken@0
   690
{
slouken@2753
   691
    if (!_this) {
slouken@2753
   692
        SDL_UninitializedVideo();
slouken@2753
   693
        return -1;
slouken@2753
   694
    }
slouken@2753
   695
    if (mode) {
slouken@2753
   696
        *mode = SDL_CurrentDisplay.fullscreen_mode;
slouken@2753
   697
    }
slouken@2753
   698
    return 0;
slouken@0
   699
}
slouken@0
   700
slouken@1895
   701
int
slouken@1895
   702
SDL_SetDisplayPalette(const SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   703
{
slouken@2753
   704
    SDL_Palette *palette;
slouken@2753
   705
    int status = 0;
slouken@0
   706
slouken@2753
   707
    if (!_this) {
slouken@2753
   708
        SDL_UninitializedVideo();
slouken@2753
   709
        return -1;
slouken@2753
   710
    }
slouken@2753
   711
    palette = SDL_CurrentDisplay.palette;
slouken@2753
   712
    if (!palette) {
slouken@2753
   713
        SDL_SetError("Display mode does not have a palette");
slouken@2753
   714
        return -1;
slouken@2753
   715
    }
slouken@2753
   716
    status = SDL_SetPaletteColors(palette, colors, firstcolor, ncolors);
slouken@0
   717
slouken@2753
   718
    if (_this->SetDisplayPalette) {
slouken@2753
   719
        if (_this->SetDisplayPalette(_this, palette) < 0) {
slouken@2753
   720
            status = -1;
slouken@2753
   721
        }
slouken@2753
   722
    }
slouken@2753
   723
    return status;
slouken@0
   724
}
slouken@0
   725
slouken@1895
   726
int
slouken@1895
   727
SDL_GetDisplayPalette(SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   728
{
slouken@2753
   729
    SDL_Palette *palette;
slouken@1895
   730
slouken@2753
   731
    if (!_this) {
slouken@2753
   732
        SDL_UninitializedVideo();
slouken@2753
   733
        return -1;
slouken@2753
   734
    }
slouken@2753
   735
    palette = SDL_CurrentDisplay.palette;
slouken@2753
   736
    if (!palette->ncolors) {
slouken@2753
   737
        SDL_SetError("Display mode does not have a palette");
slouken@2753
   738
        return -1;
slouken@2753
   739
    }
slouken@2753
   740
    if (firstcolor < 0 || (firstcolor + ncolors) > palette->ncolors) {
slouken@2753
   741
        SDL_SetError("Palette indices are out of range");
slouken@2753
   742
        return -1;
slouken@2753
   743
    }
slouken@2753
   744
    SDL_memcpy(colors, &palette->colors[firstcolor],
slouken@2753
   745
               ncolors * sizeof(*colors));
slouken@2753
   746
    return 0;
slouken@0
   747
}
slouken@0
   748
slouken@1895
   749
SDL_WindowID
slouken@1895
   750
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
   751
{
slouken@2753
   752
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@2753
   753
                                  SDL_WINDOW_OPENGL |
slouken@2753
   754
                                  SDL_WINDOW_BORDERLESS |
slouken@2875
   755
                                  SDL_WINDOW_RESIZABLE |
slouken@2875
   756
                                  SDL_WINDOW_INPUT_GRABBED);
slouken@2753
   757
    SDL_VideoDisplay *display;
slouken@2753
   758
    SDL_Window window;
slouken@2753
   759
    int num_windows;
slouken@2753
   760
    SDL_Window *windows;
slouken@0
   761
slouken@2753
   762
    if (!_this) {
slouken@2753
   763
        SDL_UninitializedVideo();
slouken@2753
   764
        return 0;
slouken@2753
   765
    }
slouken@3057
   766
    if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   767
        if (!_this->GL_CreateContext) {
slouken@3057
   768
            SDL_SetError("No OpenGL support in video driver");
slouken@3057
   769
            return 0;
slouken@3057
   770
        }
slouken@3057
   771
        SDL_GL_LoadLibrary(NULL);
slouken@2753
   772
    }
slouken@2753
   773
    SDL_zero(window);
slouken@2753
   774
    window.id = _this->next_object_id++;
slouken@2753
   775
    window.x = x;
slouken@2753
   776
    window.y = y;
slouken@2753
   777
    window.w = w;
slouken@2753
   778
    window.h = h;
slouken@2753
   779
    window.flags = (flags & allowed_flags);
slouken@2753
   780
    window.display = _this->current_display;
slouken@1912
   781
slouken@2753
   782
    if (_this->CreateWindow && _this->CreateWindow(_this, &window) < 0) {
slouken@3057
   783
        if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   784
            SDL_GL_UnloadLibrary();
slouken@3057
   785
        }
slouken@2753
   786
        return 0;
slouken@2753
   787
    }
slouken@2753
   788
    display = &SDL_CurrentDisplay;
slouken@2753
   789
    num_windows = display->num_windows;
slouken@2753
   790
    windows =
slouken@2753
   791
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@2753
   792
    if (!windows) {
slouken@2753
   793
        if (_this->DestroyWindow) {
slouken@2753
   794
            _this->DestroyWindow(_this, &window);
slouken@2753
   795
        }
slouken@3057
   796
        if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   797
            SDL_GL_UnloadLibrary();
slouken@3057
   798
        }
slouken@2753
   799
        return 0;
slouken@2753
   800
    }
slouken@2753
   801
    windows[num_windows] = window;
slouken@2753
   802
    display->windows = windows;
slouken@2753
   803
    display->num_windows++;
slouken@0
   804
slouken@2753
   805
    if (title) {
slouken@2753
   806
        SDL_SetWindowTitle(window.id, title);
slouken@2753
   807
    }
slouken@2753
   808
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
   809
        SDL_MaximizeWindow(window.id);
slouken@2753
   810
    }
slouken@2753
   811
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
   812
        SDL_MinimizeWindow(window.id);
slouken@2753
   813
    }
slouken@2753
   814
    if (flags & SDL_WINDOW_SHOWN) {
slouken@2753
   815
        SDL_ShowWindow(window.id);
slouken@2753
   816
    }
slouken@2875
   817
    SDL_UpdateWindowGrab(&window);
slouken@2875
   818
slouken@2753
   819
    return window.id;
slouken@1895
   820
}
slouken@0
   821
slouken@1895
   822
SDL_WindowID
slouken@1895
   823
SDL_CreateWindowFrom(const void *data)
slouken@1895
   824
{
slouken@2753
   825
    SDL_VideoDisplay *display;
slouken@2753
   826
    SDL_Window window;
slouken@2753
   827
    int num_windows;
slouken@2753
   828
    SDL_Window *windows;
slouken@0
   829
slouken@2753
   830
    if (!_this) {
slouken@2753
   831
        SDL_UninitializedVideo();
slouken@2753
   832
        return (0);
slouken@2753
   833
    }
slouken@2753
   834
    SDL_zero(window);
slouken@2753
   835
    window.id = _this->next_object_id++;
slouken@2753
   836
    window.display = _this->current_display;
slouken@3057
   837
    window.flags = SDL_WINDOW_FOREIGN;
slouken@1895
   838
slouken@2753
   839
    if (!_this->CreateWindowFrom ||
slouken@2753
   840
        _this->CreateWindowFrom(_this, &window, data) < 0) {
slouken@2753
   841
        return 0;
slouken@2753
   842
    }
slouken@2753
   843
    display = &SDL_CurrentDisplay;
slouken@2753
   844
    num_windows = display->num_windows;
slouken@2753
   845
    windows =
slouken@2753
   846
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@2753
   847
    if (!windows) {
slouken@2753
   848
        if (_this->DestroyWindow) {
slouken@2753
   849
            _this->DestroyWindow(_this, &window);
slouken@2753
   850
        }
slouken@2753
   851
        if (window.title) {
slouken@2753
   852
            SDL_free(window.title);
slouken@2753
   853
        }
slouken@2753
   854
        return 0;
slouken@2753
   855
    }
slouken@2753
   856
    windows[num_windows] = window;
slouken@2753
   857
    display->windows = windows;
slouken@2753
   858
    display->num_windows++;
slouken@1895
   859
slouken@2753
   860
    return window.id;
slouken@1895
   861
}
slouken@1895
   862
slouken@1924
   863
int
slouken@1928
   864
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
   865
{
slouken@3057
   866
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@3057
   867
                                  SDL_WINDOW_OPENGL |
slouken@3057
   868
                                  SDL_WINDOW_BORDERLESS |
slouken@3057
   869
                                  SDL_WINDOW_RESIZABLE |
slouken@3057
   870
                                  SDL_WINDOW_INPUT_GRABBED);
slouken@2753
   871
    char *title = window->title;
slouken@1956
   872
slouken@2753
   873
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@2753
   874
        SDL_SetError("No OpenGL support in video driver");
slouken@2753
   875
        return -1;
slouken@2753
   876
    }
slouken@3057
   877
    if ((window->flags & SDL_WINDOW_OPENGL) != (flags & SDL_WINDOW_OPENGL)) {
slouken@3057
   878
        if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   879
            SDL_GL_LoadLibrary(NULL);
slouken@3057
   880
        } else {
slouken@3057
   881
            SDL_GL_UnloadLibrary();
slouken@3057
   882
        }
slouken@3057
   883
    }
slouken@3057
   884
slouken@3057
   885
    if (window->flags & SDL_WINDOW_FOREIGN) {
slouken@3057
   886
        /* Can't destroy and re-create foreign windows, hrm */
slouken@3057
   887
        flags |= SDL_WINDOW_FOREIGN;
slouken@3057
   888
    } else {
slouken@3057
   889
        flags &= ~SDL_WINDOW_FOREIGN;
slouken@3057
   890
    }
slouken@3057
   891
slouken@3057
   892
    if (_this->DestroyWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@2753
   893
        _this->DestroyWindow(_this, window);
slouken@2753
   894
    }
slouken@3057
   895
slouken@2753
   896
    window->title = NULL;
slouken@3057
   897
    window->flags = (flags & allowed_flags);
slouken@1956
   898
slouken@3057
   899
    if (_this->CreateWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@3057
   900
        if (_this->CreateWindow(_this, window) < 0) {
slouken@3057
   901
            if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   902
                SDL_GL_UnloadLibrary();
slouken@3057
   903
            }
slouken@3057
   904
            return -1;
slouken@3057
   905
        }
slouken@2753
   906
    }
slouken@3057
   907
slouken@2753
   908
    if (title) {
slouken@2753
   909
        SDL_SetWindowTitle(window->id, title);
slouken@2753
   910
        SDL_free(title);
slouken@2753
   911
    }
slouken@2753
   912
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
   913
        SDL_MaximizeWindow(window->id);
slouken@2753
   914
    }
slouken@2753
   915
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
   916
        SDL_MinimizeWindow(window->id);
slouken@2753
   917
    }
slouken@2753
   918
    if (flags & SDL_WINDOW_SHOWN) {
slouken@2753
   919
        SDL_ShowWindow(window->id);
slouken@2753
   920
    }
slouken@2875
   921
    SDL_UpdateWindowGrab(window);
slouken@2875
   922
slouken@2753
   923
    return 0;
slouken@1924
   924
}
slouken@1924
   925
slouken@2753
   926
SDL_Window *
slouken@1895
   927
SDL_GetWindowFromID(SDL_WindowID windowID)
slouken@1895
   928
{
slouken@2753
   929
    int i, j;
slouken@1895
   930
slouken@2753
   931
    if (!_this) {
slouken@2753
   932
        SDL_UninitializedVideo();
slouken@2753
   933
        return NULL;
slouken@2753
   934
    }
slouken@2753
   935
    for (i = 0; i < _this->num_displays; ++i) {
slouken@2753
   936
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
   937
        for (j = 0; j < display->num_windows; ++j) {
slouken@2753
   938
            SDL_Window *window = &display->windows[j];
slouken@2753
   939
            if (window->id == windowID) {
slouken@2753
   940
                return window;
slouken@2753
   941
            }
slouken@2753
   942
        }
slouken@2753
   943
    }
slouken@2753
   944
    return NULL;
slouken@1895
   945
}
slouken@1895
   946
slouken@1895
   947
SDL_VideoDisplay *
slouken@1895
   948
SDL_GetDisplayFromWindow(SDL_Window * window)
slouken@1895
   949
{
slouken@2753
   950
    if (!_this) {
slouken@2753
   951
        SDL_UninitializedVideo();
slouken@2753
   952
        return NULL;
slouken@2753
   953
    }
slouken@2753
   954
    if (!window) {
slouken@2753
   955
        return NULL;
slouken@2753
   956
    }
slouken@2753
   957
    return &_this->displays[window->display];
slouken@1895
   958
}
slouken@1895
   959
slouken@1895
   960
Uint32
slouken@1895
   961
SDL_GetWindowFlags(SDL_WindowID windowID)
slouken@1895
   962
{
slouken@2753
   963
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   964
slouken@2753
   965
    if (!window) {
slouken@2753
   966
        return 0;
slouken@2753
   967
    }
slouken@2753
   968
    return window->flags;
slouken@1895
   969
}
slouken@1895
   970
slouken@1895
   971
void
slouken@1895
   972
SDL_SetWindowTitle(SDL_WindowID windowID, const char *title)
slouken@1895
   973
{
slouken@2753
   974
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   975
slouken@2753
   976
    if (!window || title == window->title) {
slouken@2753
   977
        return;
slouken@2753
   978
    }
slouken@2753
   979
    if (window->title) {
slouken@2753
   980
        SDL_free(window->title);
slouken@2753
   981
    }
slouken@2753
   982
    if (title) {
slouken@2753
   983
        window->title = SDL_strdup(title);
slouken@2753
   984
    } else {
slouken@2753
   985
        window->title = NULL;
slouken@2753
   986
    }
slouken@1956
   987
slouken@2753
   988
    if (_this->SetWindowTitle) {
slouken@2753
   989
        _this->SetWindowTitle(_this, window);
slouken@2753
   990
    }
slouken@1895
   991
}
slouken@1895
   992
slouken@2753
   993
const char *
slouken@1895
   994
SDL_GetWindowTitle(SDL_WindowID windowID)
slouken@1895
   995
{
slouken@2753
   996
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   997
slouken@2753
   998
    if (!window) {
slouken@2753
   999
        return NULL;
slouken@2753
  1000
    }
slouken@2753
  1001
    return window->title;
slouken@1895
  1002
}
slouken@1895
  1003
slouken@1895
  1004
void
slouken@2967
  1005
SDL_SetWindowIcon(SDL_WindowID windowID, SDL_Surface * icon)
slouken@2967
  1006
{
slouken@2967
  1007
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2967
  1008
slouken@2967
  1009
    if (!window) {
slouken@2967
  1010
        return;
slouken@2967
  1011
    }
slouken@2967
  1012
    if (_this->SetWindowIcon) {
slouken@2967
  1013
        _this->SetWindowIcon(_this, window, icon);
slouken@2967
  1014
    }
slouken@2967
  1015
}
slouken@2967
  1016
slouken@2967
  1017
void
slouken@1895
  1018
SDL_SetWindowData(SDL_WindowID windowID, void *userdata)
slouken@1895
  1019
{
slouken@2753
  1020
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1021
slouken@2753
  1022
    if (!window) {
slouken@2753
  1023
        return;
slouken@2753
  1024
    }
slouken@2753
  1025
    window->userdata = userdata;
slouken@1895
  1026
}
slouken@1895
  1027
slouken@2753
  1028
void *
slouken@1895
  1029
SDL_GetWindowData(SDL_WindowID windowID)
slouken@1895
  1030
{
slouken@2753
  1031
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1032
slouken@2753
  1033
    if (!window) {
slouken@2753
  1034
        return NULL;
slouken@2753
  1035
    }
slouken@2753
  1036
    return window->userdata;
slouken@1895
  1037
}
slouken@1895
  1038
slouken@1895
  1039
void
slouken@1895
  1040
SDL_SetWindowPosition(SDL_WindowID windowID, int x, int y)
slouken@1895
  1041
{
slouken@2753
  1042
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  1043
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1044
slouken@2753
  1045
    if (!window) {
slouken@2753
  1046
        return;
slouken@2753
  1047
    }
slouken@2875
  1048
    if (x != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1049
        window->x = x;
slouken@2753
  1050
    }
slouken@2875
  1051
    if (y != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1052
        window->y = y;
slouken@2753
  1053
    }
slouken@2753
  1054
    if (_this->SetWindowPosition) {
slouken@2753
  1055
        _this->SetWindowPosition(_this, window);
slouken@2753
  1056
    }
slouken@2875
  1057
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MOVED, x, y);
slouken@1895
  1058
}
slouken@1895
  1059
slouken@1895
  1060
void
slouken@1895
  1061
SDL_GetWindowPosition(SDL_WindowID windowID, int *x, int *y)
slouken@1895
  1062
{
slouken@2753
  1063
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1064
slouken@2753
  1065
    if (!window) {
slouken@2753
  1066
        return;
slouken@2753
  1067
    }
slouken@2753
  1068
    if (x) {
slouken@2753
  1069
        *x = window->x;
slouken@2753
  1070
    }
slouken@2753
  1071
    if (y) {
slouken@2753
  1072
        *y = window->y;
slouken@2753
  1073
    }
slouken@1895
  1074
}
slouken@1895
  1075
slouken@1895
  1076
void
slouken@1895
  1077
SDL_SetWindowSize(SDL_WindowID windowID, int w, int h)
slouken@1895
  1078
{
slouken@2753
  1079
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1080
slouken@2753
  1081
    if (!window) {
slouken@2753
  1082
        return;
slouken@2753
  1083
    }
slouken@2753
  1084
    window->w = w;
slouken@2753
  1085
    window->h = h;
slouken@1895
  1086
slouken@2753
  1087
    if (_this->SetWindowSize) {
slouken@2753
  1088
        _this->SetWindowSize(_this, window);
slouken@2753
  1089
    }
slouken@2849
  1090
    SDL_OnWindowResized(window);
slouken@1895
  1091
}
slouken@1895
  1092
slouken@1895
  1093
void
slouken@1895
  1094
SDL_GetWindowSize(SDL_WindowID windowID, int *w, int *h)
slouken@1895
  1095
{
slouken@2753
  1096
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1097
slouken@2860
  1098
    if (window) {
slouken@2849
  1099
        if (w) {
slouken@2849
  1100
            *w = window->w;
slouken@2849
  1101
        }
slouken@2849
  1102
        if (h) {
slouken@2849
  1103
            *h = window->h;
slouken@2849
  1104
        }
slouken@2849
  1105
    } else {
slouken@2849
  1106
        if (w) {
slouken@2849
  1107
            *w = 0;
slouken@2849
  1108
        }
slouken@2849
  1109
        if (h) {
slouken@2849
  1110
            *h = 0;
slouken@2849
  1111
        }
slouken@2753
  1112
    }
slouken@1895
  1113
}
slouken@1895
  1114
slouken@1895
  1115
void
slouken@1895
  1116
SDL_ShowWindow(SDL_WindowID windowID)
slouken@1895
  1117
{
slouken@2753
  1118
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1119
slouken@2753
  1120
    if (!window || (window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1121
        return;
slouken@2753
  1122
    }
slouken@1895
  1123
slouken@2753
  1124
    if (_this->ShowWindow) {
slouken@2753
  1125
        _this->ShowWindow(_this, window);
slouken@2753
  1126
    }
slouken@2875
  1127
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1128
}
slouken@1895
  1129
slouken@1895
  1130
void
slouken@1895
  1131
SDL_HideWindow(SDL_WindowID windowID)
slouken@1895
  1132
{
slouken@2753
  1133
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1134
slouken@2753
  1135
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1136
        return;
slouken@2753
  1137
    }
slouken@1895
  1138
slouken@2753
  1139
    if (_this->HideWindow) {
slouken@2753
  1140
        _this->HideWindow(_this, window);
slouken@2753
  1141
    }
slouken@2875
  1142
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1143
}
slouken@1895
  1144
slouken@1895
  1145
void
slouken@1895
  1146
SDL_RaiseWindow(SDL_WindowID windowID)
slouken@1895
  1147
{
slouken@2753
  1148
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1149
slouken@2753
  1150
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1151
        return;
slouken@2753
  1152
    }
slouken@2753
  1153
    if (_this->RaiseWindow) {
slouken@2753
  1154
        _this->RaiseWindow(_this, window);
slouken@2753
  1155
    }
slouken@1895
  1156
}
slouken@1895
  1157
slouken@1895
  1158
void
slouken@1895
  1159
SDL_MaximizeWindow(SDL_WindowID windowID)
slouken@1895
  1160
{
slouken@2753
  1161
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1162
slouken@2753
  1163
    if (!window || (window->flags & SDL_WINDOW_MAXIMIZED)) {
slouken@2753
  1164
        return;
slouken@2753
  1165
    }
slouken@1895
  1166
slouken@2753
  1167
    if (_this->MaximizeWindow) {
slouken@2753
  1168
        _this->MaximizeWindow(_this, window);
slouken@2753
  1169
    }
slouken@2875
  1170
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@1895
  1171
}
slouken@1895
  1172
slouken@1895
  1173
void
slouken@1895
  1174
SDL_MinimizeWindow(SDL_WindowID windowID)
slouken@1895
  1175
{
slouken@2753
  1176
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1177
slouken@2753
  1178
    if (!window || (window->flags & SDL_WINDOW_MINIMIZED)) {
slouken@2753
  1179
        return;
slouken@2753
  1180
    }
slouken@1895
  1181
slouken@2753
  1182
    if (_this->MinimizeWindow) {
slouken@2753
  1183
        _this->MinimizeWindow(_this, window);
slouken@2753
  1184
    }
slouken@2875
  1185
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@1895
  1186
}
slouken@1895
  1187
slouken@1895
  1188
void
slouken@1895
  1189
SDL_RestoreWindow(SDL_WindowID windowID)
slouken@1895
  1190
{
slouken@2753
  1191
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1192
slouken@2753
  1193
    if (!window
slouken@2934
  1194
        || !(window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@2753
  1195
        return;
slouken@2753
  1196
    }
slouken@1895
  1197
slouken@2753
  1198
    if (_this->RestoreWindow) {
slouken@2753
  1199
        _this->RestoreWindow(_this, window);
slouken@2753
  1200
    }
slouken@2875
  1201
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@1895
  1202
}
slouken@1895
  1203
slouken@1895
  1204
int
slouken@1895
  1205
SDL_SetWindowFullscreen(SDL_WindowID windowID, int fullscreen)
slouken@1895
  1206
{
slouken@2753
  1207
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1208
slouken@2753
  1209
    if (!window) {
slouken@2753
  1210
        return -1;
slouken@2753
  1211
    }
slouken@2753
  1212
    if (fullscreen) {
slouken@2753
  1213
        fullscreen = SDL_WINDOW_FULLSCREEN;
slouken@2753
  1214
    }
slouken@2753
  1215
    if ((window->flags & SDL_WINDOW_FULLSCREEN) == fullscreen) {
slouken@2753
  1216
        return 0;
slouken@2753
  1217
    }
slouken@2753
  1218
    if (fullscreen) {
slouken@2753
  1219
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@1895
  1220
slouken@2753
  1221
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
  1222
            SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1223
slouken@2753
  1224
            /* Hide any other fullscreen windows */
slouken@2753
  1225
            int i;
slouken@2753
  1226
            for (i = 0; i < display->num_windows; ++i) {
slouken@2753
  1227
                SDL_Window *other = &display->windows[i];
slouken@2753
  1228
                if (other->id != windowID && FULLSCREEN_VISIBLE(other)) {
slouken@2753
  1229
                    SDL_MinimizeWindow(other->id);
slouken@2753
  1230
                }
slouken@2753
  1231
            }
slouken@1895
  1232
slouken@2753
  1233
            SDL_SetDisplayMode(&display->fullscreen_mode);
slouken@2753
  1234
        }
slouken@2753
  1235
    } else {
slouken@2753
  1236
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@1895
  1237
slouken@2753
  1238
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
  1239
            SDL_SetDisplayMode(NULL);
slouken@2753
  1240
        }
slouken@2753
  1241
    }
slouken@2753
  1242
    return 0;
slouken@1895
  1243
}
slouken@1895
  1244
slouken@1895
  1245
void
slouken@1895
  1246
SDL_SetWindowGrab(SDL_WindowID windowID, int mode)
slouken@1895
  1247
{
slouken@2753
  1248
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1249
slouken@2753
  1250
    if (!window || (!!mode == !!(window->flags & SDL_WINDOW_INPUT_GRABBED))) {
slouken@2753
  1251
        return;
slouken@2753
  1252
    }
slouken@2753
  1253
    if (mode) {
slouken@2753
  1254
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1255
    } else {
slouken@2753
  1256
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1257
    }
slouken@2875
  1258
    SDL_UpdateWindowGrab(window);
slouken@2875
  1259
}
slouken@1895
  1260
slouken@2875
  1261
static void
slouken@2876
  1262
SDL_UpdateWindowGrab(SDL_Window * window)
slouken@2875
  1263
{
slouken@2753
  1264
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@2753
  1265
        _this->SetWindowGrab(_this, window);
slouken@2753
  1266
    }
slouken@1895
  1267
}
slouken@1895
  1268
slouken@1895
  1269
int
slouken@1895
  1270
SDL_GetWindowGrab(SDL_WindowID windowID)
slouken@1895
  1271
{
slouken@2753
  1272
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1273
slouken@2753
  1274
    if (!window) {
slouken@2753
  1275
        return 0;
slouken@2753
  1276
    }
slouken@2753
  1277
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1278
}
slouken@1895
  1279
slouken@1895
  1280
void
slouken@1895
  1281
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1282
{
slouken@2875
  1283
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2875
  1284
        SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_FOCUS_GAINED, 0, 0);
slouken@2875
  1285
    }
slouken@1895
  1286
}
slouken@1895
  1287
slouken@1895
  1288
void
slouken@1895
  1289
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1290
{
slouken@2875
  1291
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2875
  1292
        SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@2875
  1293
    }
slouken@1895
  1294
}
slouken@1895
  1295
slouken@1895
  1296
void
slouken@1970
  1297
SDL_OnWindowResized(SDL_Window * window)
slouken@1970
  1298
{
slouken@2753
  1299
    SDL_Renderer *renderer = window->renderer;
slouken@1970
  1300
slouken@2753
  1301
    if (renderer && renderer->DisplayModeChanged) {
slouken@2753
  1302
        renderer->DisplayModeChanged(renderer);
slouken@2753
  1303
    }
slouken@1970
  1304
}
slouken@1970
  1305
slouken@1970
  1306
void
slouken@1895
  1307
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  1308
{
slouken@2753
  1309
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1310
slouken@2753
  1311
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
  1312
        SDL_SetDisplayMode(&display->fullscreen_mode);
slouken@2753
  1313
    }
slouken@2753
  1314
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@2753
  1315
        _this->SetDisplayGammaRamp(_this, display->gamma);
slouken@2753
  1316
    }
slouken@2876
  1317
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN))
slouken@2876
  1318
        && _this->SetWindowGrab) {
slouken@2753
  1319
        _this->SetWindowGrab(_this, window);
slouken@2753
  1320
    }
slouken@1895
  1321
}
slouken@1895
  1322
slouken@1895
  1323
void
slouken@1895
  1324
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1325
{
slouken@2753
  1326
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1327
slouken@2753
  1328
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
  1329
        SDL_MinimizeWindow(window->id);
slouken@2753
  1330
        SDL_SetDisplayMode(NULL);
slouken@2753
  1331
    }
slouken@2753
  1332
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@2753
  1333
        _this->SetDisplayGammaRamp(_this, display->saved_gamma);
slouken@2753
  1334
    }
slouken@2876
  1335
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN))
slouken@2876
  1336
        && _this->SetWindowGrab) {
slouken@2753
  1337
        _this->SetWindowGrab(_this, window);
slouken@2753
  1338
    }
slouken@1895
  1339
}
slouken@1895
  1340
slouken@1895
  1341
SDL_WindowID
slouken@1895
  1342
SDL_GetFocusWindow(void)
slouken@1895
  1343
{
slouken@2753
  1344
    SDL_VideoDisplay *display;
slouken@2753
  1345
    int i;
slouken@1895
  1346
slouken@2753
  1347
    if (!_this) {
slouken@2753
  1348
        return 0;
slouken@2753
  1349
    }
slouken@2753
  1350
    display = &SDL_CurrentDisplay;
slouken@2753
  1351
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
  1352
        SDL_Window *window = &display->windows[i];
slouken@1895
  1353
slouken@2753
  1354
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@2753
  1355
            return window->id;
slouken@2753
  1356
        }
slouken@2753
  1357
    }
slouken@2753
  1358
    return 0;
slouken@1895
  1359
}
slouken@1895
  1360
slouken@1895
  1361
void
slouken@1895
  1362
SDL_DestroyWindow(SDL_WindowID windowID)
slouken@1895
  1363
{
slouken@2753
  1364
    int i, j;
slouken@1895
  1365
slouken@2753
  1366
    if (!_this) {
slouken@2753
  1367
        return;
slouken@2753
  1368
    }
slouken@2753
  1369
    /* Restore video mode, etc. */
slouken@2753
  1370
    SDL_SendWindowEvent(windowID, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@1895
  1371
slouken@2753
  1372
    for (i = 0; i < _this->num_displays; ++i) {
slouken@2753
  1373
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  1374
        for (j = 0; j < display->num_windows; ++j) {
slouken@2753
  1375
            SDL_Window *window = &display->windows[j];
slouken@2753
  1376
            if (window->id != windowID) {
slouken@2753
  1377
                continue;
slouken@2753
  1378
            }
slouken@2753
  1379
            if (window->title) {
slouken@2753
  1380
                SDL_free(window->title);
slouken@2753
  1381
                window->title = NULL;
slouken@2753
  1382
            }
slouken@2753
  1383
            if (window->renderer) {
slouken@2753
  1384
                SDL_DestroyRenderer(window->id);
slouken@2753
  1385
                window->renderer = NULL;
slouken@2753
  1386
            }
slouken@2753
  1387
            if (_this->DestroyWindow) {
slouken@2753
  1388
                _this->DestroyWindow(_this, window);
slouken@2753
  1389
            }
slouken@3057
  1390
            if (window->flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1391
                SDL_GL_UnloadLibrary();
slouken@3057
  1392
            }
slouken@2753
  1393
            if (j != display->num_windows - 1) {
slouken@2753
  1394
                SDL_memcpy(&display->windows[i],
slouken@2753
  1395
                           &display->windows[i + 1],
slouken@2753
  1396
                           (display->num_windows - i - 1) * sizeof(*window));
slouken@2753
  1397
            }
slouken@2753
  1398
            --display->num_windows;
slouken@2753
  1399
            return;
slouken@2753
  1400
        }
slouken@2753
  1401
    }
slouken@1895
  1402
}
slouken@1895
  1403
slouken@1895
  1404
void
slouken@1895
  1405
SDL_AddRenderDriver(int displayIndex, const SDL_RenderDriver * driver)
slouken@1895
  1406
{
slouken@2753
  1407
    SDL_VideoDisplay *display;
slouken@2753
  1408
    SDL_RenderDriver *render_drivers;
slouken@1895
  1409
slouken@2753
  1410
    if (displayIndex >= _this->num_displays) {
slouken@2753
  1411
        return;
slouken@2753
  1412
    }
slouken@2753
  1413
    display = &_this->displays[displayIndex];
slouken@2119
  1414
slouken@2753
  1415
    render_drivers =
slouken@2753
  1416
        SDL_realloc(display->render_drivers,
slouken@2753
  1417
                    (display->num_render_drivers +
slouken@2753
  1418
                     1) * sizeof(*render_drivers));
slouken@2753
  1419
    if (render_drivers) {
slouken@2753
  1420
        render_drivers[display->num_render_drivers] = *driver;
slouken@2753
  1421
        display->render_drivers = render_drivers;
slouken@2753
  1422
        display->num_render_drivers++;
slouken@2753
  1423
    }
slouken@1895
  1424
}
slouken@1895
  1425
slouken@1895
  1426
int
slouken@1969
  1427
SDL_GetNumRenderDrivers(void)
slouken@1895
  1428
{
slouken@2753
  1429
    if (_this) {
slouken@2753
  1430
        return SDL_CurrentDisplay.num_render_drivers;
slouken@2753
  1431
    }
slouken@2753
  1432
    return 0;
slouken@1895
  1433
}
slouken@1895
  1434
slouken@1895
  1435
int
slouken@1969
  1436
SDL_GetRenderDriverInfo(int index, SDL_RendererInfo * info)
slouken@1895
  1437
{
slouken@2753
  1438
    if (!_this) {
slouken@2753
  1439
        SDL_UninitializedVideo();
slouken@2753
  1440
        return -1;
slouken@2753
  1441
    }
slouken@2753
  1442
    if (index < 0 || index >= SDL_GetNumRenderDrivers()) {
slouken@2753
  1443
        SDL_SetError("index must be in the range of 0 - %d",
slouken@2753
  1444
                     SDL_GetNumRenderDrivers() - 1);
slouken@2753
  1445
        return -1;
slouken@2753
  1446
    }
slouken@2753
  1447
    *info = SDL_CurrentDisplay.render_drivers[index].info;
slouken@2753
  1448
    return 0;
slouken@1895
  1449
}
slouken@1895
  1450
slouken@1895
  1451
int
slouken@1895
  1452
SDL_CreateRenderer(SDL_WindowID windowID, int index, Uint32 flags)
slouken@1895
  1453
{
slouken@2753
  1454
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1455
slouken@2753
  1456
    if (!window) {
slouken@3091
  1457
        SDL_SetError("Invalid window ID");
slouken@3091
  1458
        return -1;
slouken@2753
  1459
    }
slouken@2753
  1460
    if (index < 0) {
slouken@2753
  1461
        const char *override = SDL_getenv("SDL_VIDEO_RENDERER");
slouken@2753
  1462
        int n = SDL_GetNumRenderDrivers();
slouken@2753
  1463
        for (index = 0; index < n; ++index) {
slouken@2753
  1464
            SDL_RenderDriver *driver =
slouken@2753
  1465
                &SDL_CurrentDisplay.render_drivers[index];
slouken@1895
  1466
slouken@2753
  1467
            if (override) {
slouken@2753
  1468
                if (SDL_strcasecmp(override, driver->info.name) == 0) {
slouken@2753
  1469
                    break;
slouken@2753
  1470
                }
slouken@2753
  1471
            } else {
slouken@2753
  1472
                if ((driver->info.flags & flags) == flags) {
slouken@2753
  1473
                    break;
slouken@2753
  1474
                }
slouken@2753
  1475
            }
slouken@2753
  1476
        }
slouken@2753
  1477
        if (index == n) {
slouken@2753
  1478
            SDL_SetError("Couldn't find matching render driver");
slouken@2753
  1479
            return -1;
slouken@2753
  1480
        }
slouken@2753
  1481
    }
slouken@2753
  1482
    if (index >= SDL_GetNumRenderDrivers()) {
slouken@2753
  1483
        SDL_SetError("index must be -1 or in the range of 0 - %d",
slouken@2753
  1484
                     SDL_GetNumRenderDrivers() - 1);
slouken@2753
  1485
        return -1;
slouken@2753
  1486
    }
slouken@2753
  1487
    /* Free any existing renderer */
slouken@2753
  1488
    SDL_DestroyRenderer(windowID);
slouken@1895
  1489
slouken@2753
  1490
    /* Create a new renderer instance */
slouken@2753
  1491
    window->renderer = SDL_CurrentDisplay.render_drivers[index]
slouken@2753
  1492
        .CreateRenderer(window, flags);
slouken@3092
  1493
slouken@3139
  1494
    if (window->renderer == NULL) {
slouken@3139
  1495
        /* Assuming renderer set its error */
slouken@3139
  1496
        return -1;
slouken@3092
  1497
    }
slouken@3092
  1498
slouken@2753
  1499
    SDL_SelectRenderer(window->id);
slouken@1895
  1500
slouken@2753
  1501
    return 0;
slouken@1895
  1502
}
slouken@1895
  1503
slouken@1895
  1504
int
slouken@1895
  1505
SDL_SelectRenderer(SDL_WindowID windowID)
slouken@1895
  1506
{
slouken@2753
  1507
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  1508
    SDL_Renderer *renderer;
slouken@1895
  1509
slouken@2753
  1510
    if (!window || !window->renderer) {
slouken@2753
  1511
        return -1;
slouken@2753
  1512
    }
slouken@2753
  1513
    renderer = window->renderer;
slouken@2753
  1514
    if (renderer && renderer->ActivateRenderer) {
slouken@2753
  1515
        if (renderer->ActivateRenderer(renderer) < 0) {
slouken@2753
  1516
            return -1;
slouken@2753
  1517
        }
slouken@2753
  1518
    }
slouken@2753
  1519
    SDL_CurrentDisplay.current_renderer = renderer;
slouken@2753
  1520
    return 0;
slouken@1895
  1521
}
slouken@1895
  1522
slouken@1969
  1523
int
slouken@1969
  1524
SDL_GetRendererInfo(SDL_RendererInfo * info)
slouken@1969
  1525
{
slouken@2753
  1526
    if (!_this) {
slouken@2753
  1527
        SDL_UninitializedVideo();
slouken@2753
  1528
        return -1;
slouken@2753
  1529
    }
slouken@2753
  1530
    if (!SDL_CurrentDisplay.current_renderer) {
slouken@2753
  1531
        SDL_SetError("There is no current renderer");
slouken@2753
  1532
        return -1;
slouken@2753
  1533
    }
slouken@2753
  1534
    *info = SDL_CurrentDisplay.current_renderer->info;
slouken@2753
  1535
    return 0;
slouken@1969
  1536
}
slouken@1969
  1537
slouken@1895
  1538
SDL_TextureID
slouken@1895
  1539
SDL_CreateTexture(Uint32 format, int access, int w, int h)
slouken@1895
  1540
{
slouken@2753
  1541
    int hash;
slouken@2753
  1542
    SDL_Renderer *renderer;
slouken@2753
  1543
    SDL_Texture *texture;
slouken@1895
  1544
slouken@2753
  1545
    if (!_this) {
slouken@2753
  1546
        SDL_UninitializedVideo();
slouken@2753
  1547
        return 0;
slouken@2753
  1548
    }
slouken@2753
  1549
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  1550
    if (!renderer) {
slouken@2810
  1551
        return 0;
slouken@2810
  1552
    }
slouken@2810
  1553
    if (!renderer->CreateTexture) {
slouken@2810
  1554
        SDL_Unsupported();
slouken@2753
  1555
        return 0;
slouken@2753
  1556
    }
slouken@2753
  1557
    texture = (SDL_Texture *) SDL_calloc(1, sizeof(*texture));
slouken@2753
  1558
    if (!texture) {
slouken@2753
  1559
        SDL_OutOfMemory();
slouken@2753
  1560
        return 0;
slouken@2753
  1561
    }
slouken@2753
  1562
    texture->id = _this->next_object_id++;
slouken@2753
  1563
    texture->format = format;
slouken@2753
  1564
    texture->access = access;
slouken@2753
  1565
    texture->w = w;
slouken@2753
  1566
    texture->h = h;
slouken@2753
  1567
    texture->r = 255;
slouken@2753
  1568
    texture->g = 255;
slouken@2753
  1569
    texture->b = 255;
slouken@2753
  1570
    texture->a = 255;
slouken@2753
  1571
    texture->renderer = renderer;
slouken@1895
  1572
slouken@2753
  1573
    if (renderer->CreateTexture(renderer, texture) < 0) {
slouken@2753
  1574
        if (renderer->DestroyTexture) {
slouken@2753
  1575
            renderer->DestroyTexture(renderer, texture);
slouken@2753
  1576
        }
slouken@2753
  1577
        SDL_free(texture);
slouken@2753
  1578
        return 0;
slouken@2753
  1579
    }
slouken@2753
  1580
    hash = (texture->id % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  1581
    texture->next = SDL_CurrentDisplay.textures[hash];
slouken@2753
  1582
    SDL_CurrentDisplay.textures[hash] = texture;
slouken@1895
  1583
slouken@2753
  1584
    return texture->id;
slouken@1895
  1585
}
slouken@1895
  1586
slouken@1895
  1587
SDL_TextureID
slouken@2222
  1588
SDL_CreateTextureFromSurface(Uint32 format, SDL_Surface * surface)
slouken@1895
  1589
{
slouken@2753
  1590
    SDL_TextureID textureID;
slouken@3057
  1591
    Uint32 requested_format = format;
slouken@2753
  1592
    SDL_PixelFormat *fmt;
lestat@3166
  1593
    SDL_Renderer *renderer;
slouken@2753
  1594
    int bpp;
slouken@2753
  1595
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@1895
  1596
slouken@2753
  1597
    if (!surface) {
slouken@2753
  1598
        SDL_SetError("SDL_CreateTextureFromSurface() passed NULL surface");
slouken@2753
  1599
        return 0;
slouken@2753
  1600
    }
slouken@2753
  1601
    fmt = surface->format;
slouken@1895
  1602
lestat@3166
  1603
    renderer = SDL_CurrentDisplay.current_renderer;
lestat@3166
  1604
    if (!renderer) {
lestat@3166
  1605
        return 0;
lestat@3166
  1606
    }
lestat@3166
  1607
slouken@2753
  1608
    if (format) {
slouken@2753
  1609
        if (!SDL_PixelFormatEnumToMasks
slouken@2753
  1610
            (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@2753
  1611
            SDL_SetError("Unknown pixel format");
slouken@2753
  1612
            return 0;
slouken@2753
  1613
        }
slouken@2753
  1614
    } else {
slouken@2753
  1615
        if (surface->format->Amask
slouken@2753
  1616
            || !(surface->map->info.flags &
slouken@2753
  1617
                 (SDL_COPY_COLORKEY | SDL_COPY_MASK | SDL_COPY_BLEND))) {
slouken@3196
  1618
            Uint32 it;
lestat@3178
  1619
            int pfmt;
lestat@3178
  1620
lestat@3178
  1621
            /* Pixel formats, sorted by best first */
slouken@3186
  1622
            static const Uint32 sdl_pformats[] = {
slouken@3186
  1623
                SDL_PIXELFORMAT_ARGB8888,
slouken@3186
  1624
                SDL_PIXELFORMAT_RGBA8888,
slouken@3186
  1625
                SDL_PIXELFORMAT_ABGR8888,
slouken@3186
  1626
                SDL_PIXELFORMAT_BGRA8888,
slouken@3186
  1627
                SDL_PIXELFORMAT_RGB888,
slouken@3186
  1628
                SDL_PIXELFORMAT_BGR888,
slouken@3186
  1629
                SDL_PIXELFORMAT_RGB24,
slouken@3186
  1630
                SDL_PIXELFORMAT_BGR24,
slouken@3186
  1631
                SDL_PIXELFORMAT_RGB565,
slouken@3186
  1632
                SDL_PIXELFORMAT_BGR565,
slouken@3186
  1633
                SDL_PIXELFORMAT_ARGB1555,
slouken@3186
  1634
                SDL_PIXELFORMAT_ABGR1555,
slouken@3186
  1635
                SDL_PIXELFORMAT_RGB555,
slouken@3186
  1636
                SDL_PIXELFORMAT_BGR555,
slouken@3186
  1637
                SDL_PIXELFORMAT_ARGB4444,
slouken@3186
  1638
                SDL_PIXELFORMAT_ABGR4444,
slouken@3186
  1639
                SDL_PIXELFORMAT_RGB444,
slouken@3186
  1640
                SDL_PIXELFORMAT_ARGB2101010,
slouken@3186
  1641
                SDL_PIXELFORMAT_INDEX8,
slouken@3186
  1642
                SDL_PIXELFORMAT_INDEX4LSB,
slouken@3186
  1643
                SDL_PIXELFORMAT_INDEX4MSB,
slouken@3186
  1644
                SDL_PIXELFORMAT_RGB332,
slouken@3186
  1645
                SDL_PIXELFORMAT_INDEX1LSB,
slouken@3186
  1646
                SDL_PIXELFORMAT_INDEX1MSB,
slouken@3186
  1647
                SDL_PIXELFORMAT_UNKNOWN
slouken@3186
  1648
            };
lestat@3178
  1649
slouken@2753
  1650
            bpp = fmt->BitsPerPixel;
slouken@2753
  1651
            Rmask = fmt->Rmask;
slouken@2753
  1652
            Gmask = fmt->Gmask;
slouken@2753
  1653
            Bmask = fmt->Bmask;
slouken@2753
  1654
            Amask = fmt->Amask;
lestat@3178
  1655
slouken@3186
  1656
            format =
slouken@3186
  1657
                SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
lestat@3178
  1658
            if (!format) {
lestat@3178
  1659
                SDL_SetError("Unknown pixel format");
lestat@3178
  1660
                return 0;
lestat@3178
  1661
            }
lestat@3178
  1662
lestat@3178
  1663
            /* Search requested format in the supported texture */
lestat@3178
  1664
            /* formats by current renderer                      */
slouken@3186
  1665
            for (it = 0; it < renderer->info.num_texture_formats; it++) {
slouken@3186
  1666
                if (renderer->info.texture_formats[it] == format) {
slouken@3186
  1667
                    break;
lestat@3178
  1668
                }
lestat@3178
  1669
            }
lestat@3178
  1670
lestat@3178
  1671
            /* If requested format can't be found, search any best */
lestat@3178
  1672
            /* format which renderer provides                      */
slouken@3186
  1673
            if (it == renderer->info.num_texture_formats) {
slouken@3186
  1674
                pfmt = 0;
slouken@3186
  1675
                for (;;) {
slouken@3186
  1676
                    if (sdl_pformats[pfmt] == SDL_PIXELFORMAT_UNKNOWN) {
lestat@3178
  1677
                        break;
lestat@3178
  1678
                    }
lestat@3178
  1679
slouken@3186
  1680
                    for (it = 0; it < renderer->info.num_texture_formats;
slouken@3186
  1681
                         it++) {
slouken@3186
  1682
                        if (renderer->info.texture_formats[it] ==
slouken@3186
  1683
                            sdl_pformats[pfmt]) {
slouken@3186
  1684
                            break;
slouken@3186
  1685
                        }
lestat@3178
  1686
                    }
lestat@3178
  1687
slouken@3186
  1688
                    if (it != renderer->info.num_texture_formats) {
slouken@3186
  1689
                        /* The best format has been found */
slouken@3186
  1690
                        break;
lestat@3178
  1691
                    }
lestat@3178
  1692
                    pfmt++;
lestat@3178
  1693
                }
lestat@3178
  1694
lestat@3178
  1695
                /* If any format can't be found, then return an error */
slouken@3186
  1696
                if (it == renderer->info.num_texture_formats) {
slouken@3186
  1697
                    SDL_SetError
slouken@3186
  1698
                        ("Any of the supported pixel formats can't be found");
lestat@3178
  1699
                    return 0;
lestat@3178
  1700
                }
lestat@3178
  1701
lestat@3178
  1702
                /* Convert found pixel format back to color masks */
slouken@3186
  1703
                if (SDL_PixelFormatEnumToMasks
slouken@3186
  1704
                    (renderer->info.texture_formats[it], &bpp, &Rmask, &Gmask,
slouken@3186
  1705
                     &Bmask, &Amask) != SDL_TRUE) {
lestat@3178
  1706
                    SDL_SetError("Unknown pixel format");
lestat@3178
  1707
                    return 0;
lestat@3178
  1708
                }
lestat@3178
  1709
            }
slouken@2753
  1710
        } else {
slouken@2753
  1711
            /* Need a format with alpha */
slouken@3196
  1712
            Uint32 it;
lestat@3166
  1713
            int apfmt;
lestat@3166
  1714
lestat@3166
  1715
            /* Pixel formats with alpha, sorted by best first */
slouken@3169
  1716
            static const Uint32 sdl_alpha_pformats[] = {
slouken@3169
  1717
                SDL_PIXELFORMAT_ARGB8888,
slouken@3169
  1718
                SDL_PIXELFORMAT_RGBA8888,
slouken@3169
  1719
                SDL_PIXELFORMAT_ABGR8888,
slouken@3169
  1720
                SDL_PIXELFORMAT_BGRA8888,
slouken@3169
  1721
                SDL_PIXELFORMAT_ARGB1555,
slouken@3169
  1722
                SDL_PIXELFORMAT_ABGR1555,
slouken@3169
  1723
                SDL_PIXELFORMAT_ARGB4444,
slouken@3169
  1724
                SDL_PIXELFORMAT_ABGR4444,
slouken@3169
  1725
                SDL_PIXELFORMAT_ARGB2101010,
slouken@3169
  1726
                SDL_PIXELFORMAT_UNKNOWN
slouken@3169
  1727
            };
lestat@3166
  1728
lestat@3178
  1729
            if (surface->format->Amask) {
lestat@3178
  1730
                /* If surface already has alpha, then try an original */
lestat@3178
  1731
                /* surface format first                               */
lestat@3178
  1732
                bpp = fmt->BitsPerPixel;
lestat@3178
  1733
                Rmask = fmt->Rmask;
lestat@3178
  1734
                Gmask = fmt->Gmask;
lestat@3178
  1735
                Bmask = fmt->Bmask;
lestat@3178
  1736
                Amask = fmt->Amask;
lestat@3178
  1737
            } else {
lestat@3178
  1738
                bpp = 32;
lestat@3178
  1739
                Rmask = 0x00FF0000;
lestat@3178
  1740
                Gmask = 0x0000FF00;
lestat@3178
  1741
                Bmask = 0x000000FF;
lestat@3178
  1742
                Amask = 0xFF000000;
lestat@3178
  1743
            }
lestat@3166
  1744
slouken@3169
  1745
            format =
slouken@3169
  1746
                SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
lestat@3166
  1747
            if (!format) {
lestat@3166
  1748
                SDL_SetError("Unknown pixel format");
lestat@3166
  1749
                return 0;
lestat@3166
  1750
            }
lestat@3166
  1751
lestat@3166
  1752
            /* Search this format in the supported texture formats */
lestat@3166
  1753
            /* by current renderer                                 */
slouken@3169
  1754
            for (it = 0; it < renderer->info.num_texture_formats; it++) {
slouken@3169
  1755
                if (renderer->info.texture_formats[it] == format) {
slouken@3169
  1756
                    break;
lestat@3166
  1757
                }
lestat@3166
  1758
            }
lestat@3166
  1759
lestat@3166
  1760
            /* If this format can't be found, search any best       */
lestat@3166
  1761
            /* compatible format with alpha which renderer provides */
slouken@3169
  1762
            if (it == renderer->info.num_texture_formats) {
slouken@3169
  1763
                apfmt = 0;
slouken@3169
  1764
                for (;;) {
slouken@3169
  1765
                    if (sdl_alpha_pformats[apfmt] == SDL_PIXELFORMAT_UNKNOWN) {
lestat@3166
  1766
                        break;
lestat@3166
  1767
                    }
lestat@3166
  1768
slouken@3169
  1769
                    for (it = 0; it < renderer->info.num_texture_formats;
slouken@3169
  1770
                         it++) {
slouken@3169
  1771
                        if (renderer->info.texture_formats[it] ==
slouken@3169
  1772
                            sdl_alpha_pformats[apfmt]) {
slouken@3169
  1773
                            break;
slouken@3169
  1774
                        }
lestat@3166
  1775
                    }
lestat@3166
  1776
slouken@3169
  1777
                    if (it != renderer->info.num_texture_formats) {
slouken@3169
  1778
                        /* Compatible format has been found */
slouken@3169
  1779
                        break;
lestat@3166
  1780
                    }
lestat@3166
  1781
                    apfmt++;
lestat@3166
  1782
                }
lestat@3166
  1783
lestat@3166
  1784
                /* If compatible format can't be found, then return an error */
slouken@3169
  1785
                if (it == renderer->info.num_texture_formats) {
lestat@3166
  1786
                    SDL_SetError("Compatible pixel format can't be found");
lestat@3166
  1787
                    return 0;
lestat@3166
  1788
                }
lestat@3166
  1789
lestat@3166
  1790
                /* Convert found pixel format back to color masks */
slouken@3169
  1791
                if (SDL_PixelFormatEnumToMasks
slouken@3169
  1792
                    (renderer->info.texture_formats[it], &bpp, &Rmask, &Gmask,
slouken@3169
  1793
                     &Bmask, &Amask) != SDL_TRUE) {
lestat@3166
  1794
                    SDL_SetError("Unknown pixel format");
lestat@3166
  1795
                    return 0;
lestat@3166
  1796
                }
lestat@3166
  1797
            }
slouken@2753
  1798
        }
lestat@3166
  1799
slouken@2753
  1800
        format = SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
slouken@2753
  1801
        if (!format) {
slouken@2753
  1802
            SDL_SetError("Unknown pixel format");
slouken@2753
  1803
            return 0;
slouken@2753
  1804
        }
slouken@2753
  1805
    }
slouken@1895
  1806
slouken@2753
  1807
    textureID =
slouken@2753
  1808
        SDL_CreateTexture(format, SDL_TEXTUREACCESS_STATIC, surface->w,
slouken@2753
  1809
                          surface->h);
slouken@3057
  1810
    if (!textureID && !requested_format) {
slouken@3057
  1811
        SDL_DisplayMode desktop_mode;
slouken@3057
  1812
        SDL_GetDesktopDisplayMode(&desktop_mode);
slouken@3057
  1813
        format = desktop_mode.format;
slouken@3057
  1814
        textureID =
slouken@3057
  1815
            SDL_CreateTexture(format, SDL_TEXTUREACCESS_STATIC, surface->w,
slouken@3057
  1816
                              surface->h);
slouken@3057
  1817
    }
slouken@2753
  1818
    if (!textureID) {
slouken@2753
  1819
        return 0;
slouken@2753
  1820
    }
slouken@2753
  1821
    if (bpp == fmt->BitsPerPixel && Rmask == fmt->Rmask && Gmask == fmt->Gmask
slouken@2753
  1822
        && Bmask == fmt->Bmask && Amask == fmt->Amask) {
slouken@2753
  1823
        if (SDL_MUSTLOCK(surface)) {
slouken@2753
  1824
            if (SDL_LockSurface(surface) < 0) {
slouken@2753
  1825
                SDL_DestroyTexture(textureID);
slouken@2753
  1826
                return 0;
slouken@2753
  1827
            }
slouken@2753
  1828
            SDL_UpdateTexture(textureID, NULL, surface->pixels,
slouken@2753
  1829
                              surface->pitch);
slouken@2753
  1830
            SDL_UnlockSurface(surface);
slouken@2753
  1831
        } else {
slouken@2753
  1832
            SDL_UpdateTexture(textureID, NULL, surface->pixels,
slouken@2753
  1833
                              surface->pitch);
slouken@2753
  1834
        }
slouken@2753
  1835
    } else {
slouken@2967
  1836
        SDL_PixelFormat dst_fmt;
slouken@2753
  1837
        SDL_Surface *dst = NULL;
slouken@1895
  1838
slouken@2753
  1839
        /* Set up a destination surface for the texture update */
slouken@2967
  1840
        SDL_InitFormat(&dst_fmt, bpp, Rmask, Gmask, Bmask, Amask);
slouken@2967
  1841
        if (SDL_ISPIXELFORMAT_INDEXED(format)) {
slouken@2967
  1842
            dst_fmt.palette =
slouken@2967
  1843
                SDL_AllocPalette((1 << SDL_BITSPERPIXEL(format)));
slouken@2967
  1844
            if (dst_fmt.palette) {
slouken@2967
  1845
                /*
slouken@2967
  1846
                 * FIXME: Should we try to copy
slouken@2967
  1847
                 * fmt->palette?
slouken@2967
  1848
                 */
slouken@2967
  1849
                SDL_DitherColors(dst_fmt.palette->colors,
slouken@2967
  1850
                                 SDL_BITSPERPIXEL(format));
slouken@2753
  1851
            }
slouken@2967
  1852
        }
slouken@2967
  1853
        dst = SDL_ConvertSurface(surface, &dst_fmt, 0);
slouken@2967
  1854
        if (dst) {
slouken@2967
  1855
            SDL_UpdateTexture(textureID, NULL, dst->pixels, dst->pitch);
slouken@2967
  1856
            SDL_FreeSurface(dst);
slouken@2967
  1857
        }
slouken@2967
  1858
        if (dst_fmt.palette) {
slouken@2967
  1859
            SDL_FreePalette(dst_fmt.palette);
slouken@2753
  1860
        }
slouken@2753
  1861
        if (!dst) {
slouken@2753
  1862
            SDL_DestroyTexture(textureID);
slouken@2753
  1863
            return 0;
slouken@2753
  1864
        }
slouken@2753
  1865
    }
slouken@2222
  1866
slouken@3053
  1867
    {
slouken@3053
  1868
        Uint8 r, g, b, a;
slouken@3053
  1869
        int blendMode;
slouken@3053
  1870
        int scaleMode;
slouken@3053
  1871
slouken@3053
  1872
        SDL_GetSurfaceColorMod(surface, &r, &g, &b);
slouken@3053
  1873
        SDL_SetTextureColorMod(textureID, r, g, b);
slouken@3053
  1874
slouken@3053
  1875
        SDL_GetSurfaceAlphaMod(surface, &a);
slouken@3053
  1876
        SDL_SetTextureAlphaMod(textureID, a);
slouken@3053
  1877
slouken@3053
  1878
        SDL_GetSurfaceBlendMode(surface, &blendMode);
slouken@3053
  1879
        SDL_SetTextureBlendMode(textureID, blendMode);
slouken@3053
  1880
slouken@3053
  1881
        SDL_GetSurfaceScaleMode(surface, &scaleMode);
slouken@3053
  1882
        SDL_SetTextureScaleMode(textureID, scaleMode);
slouken@3053
  1883
    }
slouken@3053
  1884
slouken@2753
  1885
    if (SDL_ISPIXELFORMAT_INDEXED(format) && fmt->palette) {
slouken@2753
  1886
        SDL_SetTexturePalette(textureID, fmt->palette->colors, 0,
slouken@2753
  1887
                              fmt->palette->ncolors);
slouken@2753
  1888
    }
slouken@2753
  1889
    return textureID;
slouken@1895
  1890
}
slouken@1895
  1891
slouken@1895
  1892
static __inline__ SDL_Texture *
slouken@1895
  1893
SDL_GetTextureFromID(SDL_TextureID textureID)
slouken@1895
  1894
{
slouken@2753
  1895
    int hash;
slouken@2753
  1896
    SDL_Texture *texture;
slouken@1895
  1897
slouken@2753
  1898
    if (!_this) {
slouken@2753
  1899
        return NULL;
slouken@2753
  1900
    }
slouken@2753
  1901
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  1902
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@2753
  1903
         texture = texture->next) {
slouken@2753
  1904
        if (texture->id == textureID) {
slouken@2753
  1905
            return texture;
slouken@2753
  1906
        }
slouken@2753
  1907
    }
slouken@2753
  1908
    return NULL;
slouken@1895
  1909
}
slouken@1895
  1910
slouken@1895
  1911
int
slouken@1895
  1912
SDL_QueryTexture(SDL_TextureID textureID, Uint32 * format, int *access,
slouken@2753
  1913
                 int *w, int *h)
slouken@1895
  1914
{
slouken@2753
  1915
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1916
slouken@2753
  1917
    if (!texture) {
slouken@2753
  1918
        return -1;
slouken@2753
  1919
    }
slouken@2753
  1920
    if (format) {
slouken@2753
  1921
        *format = texture->format;
slouken@2753
  1922
    }
slouken@2753
  1923
    if (access) {
slouken@2753
  1924
        *access = texture->access;
slouken@2753
  1925
    }
slouken@2753
  1926
    if (w) {
slouken@2753
  1927
        *w = texture->w;
slouken@2753
  1928
    }
slouken@2753
  1929
    if (h) {
slouken@2753
  1930
        *h = texture->h;
slouken@2753
  1931
    }
slouken@2753
  1932
    return 0;
slouken@1895
  1933
}
slouken@1895
  1934
slouken@1895
  1935
int
slouken@1895
  1936
SDL_QueryTexturePixels(SDL_TextureID textureID, void **pixels, int *pitch)
slouken@1895
  1937
{
slouken@2753
  1938
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1939
    SDL_Renderer *renderer;
slouken@1895
  1940
slouken@2753
  1941
    if (!texture) {
slouken@2753
  1942
        return -1;
slouken@2753
  1943
    }
slouken@2753
  1944
    renderer = texture->renderer;
slouken@2753
  1945
    if (!renderer->QueryTexturePixels) {
slouken@2810
  1946
        SDL_Unsupported();
slouken@2753
  1947
        return -1;
slouken@2753
  1948
    }
slouken@2753
  1949
    return renderer->QueryTexturePixels(renderer, texture, pixels, pitch);
slouken@1895
  1950
}
slouken@1895
  1951
slouken@1895
  1952
int
slouken@1895
  1953
SDL_SetTexturePalette(SDL_TextureID textureID, const SDL_Color * colors,
slouken@2753
  1954
                      int firstcolor, int ncolors)
slouken@1895
  1955
{
slouken@2753
  1956
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1957
    SDL_Renderer *renderer;
slouken@1895
  1958
slouken@2753
  1959
    if (!texture) {
slouken@2753
  1960
        return -1;
slouken@2753
  1961
    }
slouken@2753
  1962
    renderer = texture->renderer;
slouken@2753
  1963
    if (!renderer->SetTexturePalette) {
slouken@2810
  1964
        SDL_Unsupported();
slouken@2753
  1965
        return -1;
slouken@2753
  1966
    }
slouken@2753
  1967
    return renderer->SetTexturePalette(renderer, texture, colors, firstcolor,
slouken@2753
  1968
                                       ncolors);
slouken@1895
  1969
}
slouken@1895
  1970
slouken@1895
  1971
int
slouken@1895
  1972
SDL_GetTexturePalette(SDL_TextureID textureID, SDL_Color * colors,
slouken@2753
  1973
                      int firstcolor, int ncolors)
slouken@1895
  1974
{
slouken@2753
  1975
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1976
    SDL_Renderer *renderer;
slouken@1895
  1977
slouken@2753
  1978
    if (!texture) {
slouken@2753
  1979
        return -1;
slouken@2753
  1980
    }
slouken@2753
  1981
    renderer = texture->renderer;
slouken@2753
  1982
    if (!renderer->GetTexturePalette) {
slouken@2810
  1983
        SDL_Unsupported();
slouken@2753
  1984
        return -1;
slouken@2753
  1985
    }
slouken@2753
  1986
    return renderer->GetTexturePalette(renderer, texture, colors, firstcolor,
slouken@2753
  1987
                                       ncolors);
slouken@1895
  1988
}
slouken@1895
  1989
slouken@1895
  1990
int
slouken@1985
  1991
SDL_SetTextureColorMod(SDL_TextureID textureID, Uint8 r, Uint8 g, Uint8 b)
slouken@1985
  1992
{
slouken@2753
  1993
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1994
    SDL_Renderer *renderer;
slouken@1985
  1995
slouken@2753
  1996
    if (!texture) {
slouken@2753
  1997
        return -1;
slouken@2753
  1998
    }
slouken@2753
  1999
    renderer = texture->renderer;
slouken@2753
  2000
    if (!renderer->SetTextureColorMod) {
slouken@2810
  2001
        SDL_Unsupported();
slouken@2753
  2002
        return -1;
slouken@2753
  2003
    }
slouken@2753
  2004
    if (r < 255 || g < 255 || b < 255) {
slouken@2753
  2005
        texture->modMode |= SDL_TEXTUREMODULATE_COLOR;
slouken@2753
  2006
    } else {
slouken@2753
  2007
        texture->modMode &= ~SDL_TEXTUREMODULATE_COLOR;
slouken@2753
  2008
    }
slouken@2753
  2009
    texture->r = r;
slouken@2753
  2010
    texture->g = g;
slouken@2753
  2011
    texture->b = b;
slouken@2753
  2012
    return renderer->SetTextureColorMod(renderer, texture);
slouken@1985
  2013
}
slouken@1985
  2014
slouken@1985
  2015
int
slouken@1985
  2016
SDL_GetTextureColorMod(SDL_TextureID textureID, Uint8 * r, Uint8 * g,
slouken@2753
  2017
                       Uint8 * b)
slouken@1985
  2018
{
slouken@2753
  2019
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2020
    SDL_Renderer *renderer;
slouken@1985
  2021
slouken@2753
  2022
    if (!texture) {
slouken@2753
  2023
        return -1;
slouken@2753
  2024
    }
slouken@2753
  2025
    renderer = texture->renderer;
slouken@2753
  2026
    if (r) {
slouken@2753
  2027
        *r = texture->r;
slouken@2753
  2028
    }
slouken@2753
  2029
    if (g) {
slouken@2753
  2030
        *g = texture->g;
slouken@2753
  2031
    }
slouken@2753
  2032
    if (b) {
slouken@2753
  2033
        *b = texture->b;
slouken@2753
  2034
    }
slouken@2753
  2035
    return 0;
slouken@1985
  2036
}
slouken@1985
  2037
slouken@1985
  2038
int
slouken@1985
  2039
SDL_SetTextureAlphaMod(SDL_TextureID textureID, Uint8 alpha)
slouken@1985
  2040
{
slouken@2753
  2041
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2042
    SDL_Renderer *renderer;
slouken@1985
  2043
slouken@2753
  2044
    if (!texture) {
slouken@2753
  2045
        return -1;
slouken@2753
  2046
    }
slouken@2753
  2047
    renderer = texture->renderer;
slouken@2753
  2048
    if (!renderer->SetTextureAlphaMod) {
slouken@2810
  2049
        SDL_Unsupported();
slouken@2753
  2050
        return -1;
slouken@2753
  2051
    }
slouken@2753
  2052
    if (alpha < 255) {
slouken@2753
  2053
        texture->modMode |= SDL_TEXTUREMODULATE_ALPHA;
slouken@2753
  2054
    } else {
slouken@2753
  2055
        texture->modMode &= ~SDL_TEXTUREMODULATE_ALPHA;
slouken@2753
  2056
    }
slouken@2753
  2057
    texture->a = alpha;
slouken@2753
  2058
    return renderer->SetTextureAlphaMod(renderer, texture);
slouken@1985
  2059
}
slouken@1985
  2060
slouken@1985
  2061
int
slouken@1985
  2062
SDL_GetTextureAlphaMod(SDL_TextureID textureID, Uint8 * alpha)
slouken@1985
  2063
{
slouken@2753
  2064
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  2065
slouken@2753
  2066
    if (!texture) {
slouken@2753
  2067
        return -1;
slouken@2753
  2068
    }
slouken@2753
  2069
    if (alpha) {
slouken@2753
  2070
        *alpha = texture->a;
slouken@2753
  2071
    }
slouken@2753
  2072
    return 0;
slouken@1985
  2073
}
slouken@1985
  2074
slouken@1985
  2075
int
slouken@1985
  2076
SDL_SetTextureBlendMode(SDL_TextureID textureID, int blendMode)
slouken@1985
  2077
{
slouken@2753
  2078
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2079
    SDL_Renderer *renderer;
slouken@1985
  2080
slouken@2753
  2081
    if (!texture) {
slouken@2753
  2082
        return -1;
slouken@2753
  2083
    }
slouken@2753
  2084
    renderer = texture->renderer;
slouken@2753
  2085
    if (!renderer->SetTextureBlendMode) {
slouken@2810
  2086
        SDL_Unsupported();
slouken@2753
  2087
        return -1;
slouken@2753
  2088
    }
slouken@2753
  2089
    texture->blendMode = blendMode;
slouken@2753
  2090
    return renderer->SetTextureBlendMode(renderer, texture);
slouken@1985
  2091
}
slouken@1985
  2092
slouken@1985
  2093
int
slouken@1985
  2094
SDL_GetTextureBlendMode(SDL_TextureID textureID, int *blendMode)
slouken@1985
  2095
{
slouken@2753
  2096
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  2097
slouken@2753
  2098
    if (!texture) {
slouken@2753
  2099
        return -1;
slouken@2753
  2100
    }
slouken@2753
  2101
    if (blendMode) {
slouken@2753
  2102
        *blendMode = texture->blendMode;
slouken@2753
  2103
    }
slouken@2753
  2104
    return 0;
slouken@1985
  2105
}
slouken@1985
  2106
slouken@1985
  2107
int
slouken@1985
  2108
SDL_SetTextureScaleMode(SDL_TextureID textureID, int scaleMode)
slouken@1985
  2109
{
slouken@2753
  2110
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2111
    SDL_Renderer *renderer;
slouken@1985
  2112
slouken@2753
  2113
    if (!texture) {
slouken@2753
  2114
        return -1;
slouken@2753
  2115
    }
slouken@2753
  2116
    renderer = texture->renderer;
slouken@2753
  2117
    if (!renderer->SetTextureScaleMode) {
slouken@2810
  2118
        SDL_Unsupported();
slouken@2753
  2119
        return -1;
slouken@2753
  2120
    }
slouken@2753
  2121
    texture->scaleMode = scaleMode;
slouken@2753
  2122
    return renderer->SetTextureScaleMode(renderer, texture);
slouken@1985
  2123
}
slouken@1985
  2124
slouken@1985
  2125
int
slouken@1985
  2126
SDL_GetTextureScaleMode(SDL_TextureID textureID, int *scaleMode)
slouken@1985
  2127
{
slouken@2753
  2128
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  2129
slouken@2753
  2130
    if (!texture) {
slouken@2753
  2131
        return -1;
slouken@2753
  2132
    }
slouken@2753
  2133
    if (scaleMode) {
slouken@2753
  2134
        *scaleMode = texture->scaleMode;
slouken@2753
  2135
    }
slouken@2753
  2136
    return 0;
slouken@1985
  2137
}
slouken@1985
  2138
slouken@1985
  2139
int
slouken@1895
  2140
SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect * rect,
slouken@2753
  2141
                  const void *pixels, int pitch)
slouken@1895
  2142
{
slouken@2753
  2143
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2144
    SDL_Renderer *renderer;
slouken@2753
  2145
    SDL_Rect full_rect;
slouken@1895
  2146
slouken@2753
  2147
    if (!texture) {
slouken@2753
  2148
        return -1;
slouken@2753
  2149
    }
slouken@2753
  2150
    renderer = texture->renderer;
slouken@2753
  2151
    if (!renderer->UpdateTexture) {
slouken@2810
  2152
        SDL_Unsupported();
slouken@2753
  2153
        return -1;
slouken@2753
  2154
    }
slouken@2753
  2155
    if (!rect) {
slouken@2753
  2156
        full_rect.x = 0;
slouken@2753
  2157
        full_rect.y = 0;
slouken@2753
  2158
        full_rect.w = texture->w;
slouken@2753
  2159
        full_rect.h = texture->h;
slouken@2753
  2160
        rect = &full_rect;
slouken@2753
  2161
    }
slouken@2753
  2162
    return renderer->UpdateTexture(renderer, texture, rect, pixels, pitch);
slouken@1895
  2163
}
slouken@1895
  2164
slouken@1895
  2165
int
slouken@1895
  2166
SDL_LockTexture(SDL_TextureID textureID, const SDL_Rect * rect, int markDirty,
slouken@2753
  2167
                void **pixels, int *pitch)
slouken@1895
  2168
{
slouken@2753
  2169
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2170
    SDL_Renderer *renderer;
slouken@2753
  2171
    SDL_Rect full_rect;
slouken@1895
  2172
slouken@2753
  2173
    if (!texture) {
slouken@2753
  2174
        return -1;
slouken@2753
  2175
    }
slouken@2753
  2176
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  2177
        SDL_SetError("SDL_LockTexture(): texture must be streaming");
slouken@2753
  2178
        return -1;
slouken@2753
  2179
    }
slouken@2753
  2180
    renderer = texture->renderer;
slouken@2753
  2181
    if (!renderer->LockTexture) {
slouken@2810
  2182
        SDL_Unsupported();
slouken@2753
  2183
        return -1;
slouken@2753
  2184
    }
slouken@2753
  2185
    if (!rect) {
slouken@2753
  2186
        full_rect.x = 0;
slouken@2753
  2187
        full_rect.y = 0;
slouken@2753
  2188
        full_rect.w = texture->w;
slouken@2753
  2189
        full_rect.h = texture->h;
slouken@2753
  2190
        rect = &full_rect;
slouken@2753
  2191
    }
slouken@2753
  2192
    return renderer->LockTexture(renderer, texture, rect, markDirty, pixels,
slouken@2753
  2193
                                 pitch);
slouken@1895
  2194
}
slouken@1895
  2195
slouken@1895
  2196
void
slouken@1895
  2197
SDL_UnlockTexture(SDL_TextureID textureID)
slouken@1895
  2198
{
slouken@2753
  2199
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2200
    SDL_Renderer *renderer;
slouken@1895
  2201
slouken@2753
  2202
    if (!texture) {
slouken@2753
  2203
        return;
slouken@2753
  2204
    }
slouken@2753
  2205
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  2206
        return;
slouken@2753
  2207
    }
slouken@2753
  2208
    renderer = texture->renderer;
slouken@2753
  2209
    if (!renderer->UnlockTexture) {
slouken@2753
  2210
        return;
slouken@2753
  2211
    }
slouken@2753
  2212
    renderer->UnlockTexture(renderer, texture);
slouken@1895
  2213
}
slouken@1895
  2214
slouken@1895
  2215
void
slouken@1895
  2216
SDL_DirtyTexture(SDL_TextureID textureID, int numrects,
slouken@2753
  2217
                 const SDL_Rect * rects)
slouken@1895
  2218
{
slouken@2753
  2219
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2220
    SDL_Renderer *renderer;
slouken@1895
  2221
slouken@2753
  2222
    if (!texture) {
slouken@2753
  2223
        return;
slouken@2753
  2224
    }
slouken@2753
  2225
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  2226
        return;
slouken@2753
  2227
    }
slouken@2753
  2228
    renderer = texture->renderer;
slouken@2753
  2229
    if (!renderer->DirtyTexture) {
slouken@2753
  2230
        return;
slouken@2753
  2231
    }
slouken@2753
  2232
    renderer->DirtyTexture(renderer, texture, numrects, rects);
slouken@1895
  2233
}
slouken@1895
  2234
slouken@1895
  2235
int
slouken@2884
  2236
SDL_SetRenderDrawColor(Uint8 r, Uint8 g, Uint8 b, Uint8 a)
slouken@2884
  2237
{
slouken@2884
  2238
    SDL_Renderer *renderer;
slouken@2884
  2239
slouken@2884
  2240
    if (!_this) {
slouken@2884
  2241
        SDL_UninitializedVideo();
slouken@2884
  2242
        return -1;
slouken@2884
  2243
    }
slouken@2884
  2244
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  2245
    if (!renderer) {
slouken@2884
  2246
        return -1;
slouken@2884
  2247
    }
slouken@2884
  2248
    renderer->r = r;
slouken@2884
  2249
    renderer->g = g;
slouken@2884
  2250
    renderer->b = b;
slouken@2884
  2251
    renderer->a = a;
slouken@2927
  2252
    if (renderer->SetDrawColor) {
slouken@2927
  2253
        return renderer->SetDrawColor(renderer);
slouken@2927
  2254
    } else {
slouken@2927
  2255
        return 0;
slouken@2927
  2256
    }
slouken@2884
  2257
}
slouken@2884
  2258
slouken@2884
  2259
int
slouken@2885
  2260
SDL_GetRenderDrawColor(Uint8 * r, Uint8 * g, Uint8 * b, Uint8 * a)
slouken@2884
  2261
{
slouken@2884
  2262
    SDL_Renderer *renderer;
slouken@2884
  2263
slouken@2884
  2264
    if (!_this) {
slouken@2884
  2265
        SDL_UninitializedVideo();
slouken@2884
  2266
        return -1;
slouken@2884
  2267
    }
slouken@2884
  2268
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  2269
    if (!renderer) {
slouken@2884
  2270
        return -1;
slouken@2884
  2271
    }
slouken@2884
  2272
    if (r) {
slouken@2884
  2273
        *r = renderer->r;
slouken@2884
  2274
    }
slouken@2884
  2275
    if (g) {
slouken@2884
  2276
        *g = renderer->g;
slouken@2884
  2277
    }
slouken@2884
  2278
    if (b) {
slouken@2884
  2279
        *b = renderer->b;
slouken@2884
  2280
    }
slouken@2884
  2281
    if (a) {
slouken@2884
  2282
        *a = renderer->a;
slouken@2884
  2283
    }
slouken@2928
  2284
    return 0;
slouken@2884
  2285
}
slouken@2884
  2286
slouken@2884
  2287
int
slouken@2884
  2288
SDL_SetRenderDrawBlendMode(int blendMode)
slouken@2884
  2289
{
slouken@2884
  2290
    SDL_Renderer *renderer;
slouken@2884
  2291
slouken@2884
  2292
    if (!_this) {
slouken@2884
  2293
        SDL_UninitializedVideo();
slouken@2884
  2294
        return -1;
slouken@2884
  2295
    }
slouken@2884
  2296
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  2297
    if (!renderer) {
slouken@2884
  2298
        return -1;
slouken@2884
  2299
    }
slouken@2927
  2300
    renderer->blendMode = blendMode;
slouken@2927
  2301
    if (renderer->SetDrawBlendMode) {
slouken@2927
  2302
        return renderer->SetDrawBlendMode(renderer);
slouken@2927
  2303
    } else {
slouken@2927
  2304
        return 0;
slouken@2884
  2305
    }
slouken@2884
  2306
}
slouken@2884
  2307
slouken@2884
  2308
int
slouken@2884
  2309
SDL_GetRenderDrawBlendMode(int *blendMode)
slouken@2884
  2310
{
slouken@2884
  2311
    SDL_Renderer *renderer;
slouken@2884
  2312
slouken@2884
  2313
    if (!_this) {
slouken@2884
  2314
        SDL_UninitializedVideo();
slouken@2884
  2315
        return -1;
slouken@2884
  2316
    }
slouken@2884
  2317
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  2318
    if (!renderer) {
slouken@2884
  2319
        return -1;
slouken@2884
  2320
    }
slouken@2884
  2321
    *blendMode = renderer->blendMode;
slouken@2884
  2322
    return 0;
slouken@2884
  2323
}
slouken@2884
  2324
slouken@2901
  2325
int
slouken@2901
  2326
SDL_RenderPoint(int x, int y)
slouken@2901
  2327
{
slouken@2901
  2328
    SDL_Renderer *renderer;
slouken@2901
  2329
    SDL_Window *window;
slouken@2901
  2330
slouken@2901
  2331
    if (!_this) {
slouken@2901
  2332
        SDL_UninitializedVideo();
slouken@2901
  2333
        return -1;
slouken@2901
  2334
    }
slouken@2901
  2335
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2901
  2336
    if (!renderer) {
slouken@2901
  2337
        return -1;
slouken@2901
  2338
    }
slouken@2901
  2339
    if (!renderer->RenderPoint) {
slouken@2901
  2340
        SDL_Unsupported();
slouken@2901
  2341
        return -1;
slouken@2901
  2342
    }
slouken@2901
  2343
    window = SDL_GetWindowFromID(renderer->window);
slouken@2901
  2344
    if (x < 0 || y < 0 || x >= window->w || y >= window->h) {
slouken@2901
  2345
        return 0;
slouken@2901
  2346
    }
slouken@2901
  2347
    return renderer->RenderPoint(renderer, x, y);
slouken@2901
  2348
}
slouken@2901
  2349
slouken@2901
  2350
int
slouken@2901
  2351
SDL_RenderLine(int x1, int y1, int x2, int y2)
slouken@2901
  2352
{
slouken@2901
  2353
    SDL_Renderer *renderer;
slouken@2901
  2354
    SDL_Window *window;
slouken@2901
  2355
    SDL_Rect real_rect;
slouken@2901
  2356
slouken@2901
  2357
    if (x1 == x2 && y1 == y2) {
slouken@2901
  2358
        return SDL_RenderPoint(x1, y1);
slouken@2901
  2359
    }
slouken@2901
  2360
slouken@2901
  2361
    if (!_this) {
slouken@2901
  2362
        SDL_UninitializedVideo();
slouken@2901
  2363
        return -1;
slouken@2901
  2364
    }
slouken@2901
  2365
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2901
  2366
    if (!renderer) {
slouken@2901
  2367
        return -1;
slouken@2901
  2368
    }
slouken@2901
  2369
    if (!renderer->RenderLine) {
slouken@2901
  2370
        SDL_Unsupported();
slouken@2901
  2371
        return -1;
slouken@2901
  2372
    }
slouken@2901
  2373
    window = SDL_GetWindowFromID(renderer->window);
slouken@2909
  2374
slouken@2901
  2375
    real_rect.x = 0;
slouken@2901
  2376
    real_rect.y = 0;
slouken@2901
  2377
    real_rect.w = window->w;
slouken@2901
  2378
    real_rect.h = window->h;
slouken@2910
  2379
    if (!SDL_IntersectRectAndLine(&real_rect, &x1, &y1, &x2, &y2)) {
slouken@2909
  2380
        return (0);
slouken@2901
  2381
    }
slouken@2901
  2382
    return renderer->RenderLine(renderer, x1, y1, x2, y2);
slouken@2901
  2383
}
slouken@2884
  2384
slouken@2884
  2385
int
slouken@2884
  2386
SDL_RenderFill(const SDL_Rect * rect)
slouken@1895
  2387
{
slouken@2753
  2388
    SDL_Renderer *renderer;
slouken@2753
  2389
    SDL_Window *window;
slouken@2753
  2390
    SDL_Rect real_rect;
slouken@1895
  2391
slouken@2753
  2392
    if (!_this) {
slouken@2753
  2393
        SDL_UninitializedVideo();
slouken@2753
  2394
        return -1;
slouken@2753
  2395
    }
slouken@2753
  2396
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  2397
    if (!renderer) {
slouken@2810
  2398
        return -1;
slouken@2810
  2399
    }
slouken@2814
  2400
    if (!renderer->RenderFill) {
slouken@2810
  2401
        SDL_Unsupported();
slouken@2753
  2402
        return -1;
slouken@2753
  2403
    }
slouken@2753
  2404
    window = SDL_GetWindowFromID(renderer->window);
slouken@2908
  2405
slouken@2753
  2406
    real_rect.x = 0;
slouken@2753
  2407
    real_rect.y = 0;
slouken@2753
  2408
    real_rect.w = window->w;
slouken@2753
  2409
    real_rect.h = window->h;
slouken@2753
  2410
    if (rect) {
slouken@2753
  2411
        if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
slouken@2753
  2412
            return 0;
slouken@2753
  2413
        }
slouken@2753
  2414
    }
slouken@2884
  2415
    return renderer->RenderFill(renderer, &real_rect);
slouken@2884
  2416
}
slouken@2884
  2417
slouken@2884
  2418
int
slouken@1895
  2419
SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect * srcrect,
slouken@2753
  2420
               const SDL_Rect * dstrect)
slouken@1895
  2421
{
slouken@2753
  2422
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2423
    SDL_Renderer *renderer;
slouken@2753
  2424
    SDL_Window *window;
slouken@2753
  2425
    SDL_Rect real_srcrect;
slouken@2753
  2426
    SDL_Rect real_dstrect;
slouken@1895
  2427
slouken@2753
  2428
    if (!texture || texture->renderer != SDL_CurrentDisplay.current_renderer) {
slouken@2753
  2429
        return -1;
slouken@2753
  2430
    }
slouken@2753
  2431
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  2432
    if (!renderer) {
slouken@2810
  2433
        return -1;
slouken@2810
  2434
    }
slouken@2810
  2435
    if (!renderer->RenderCopy) {
slouken@2810
  2436
        SDL_Unsupported();
slouken@2753
  2437
        return -1;
slouken@2753
  2438
    }
slouken@2753
  2439
    window = SDL_GetWindowFromID(renderer->window);
slouken@2908
  2440
slouken@2908
  2441
    real_srcrect.x = 0;
slouken@2908
  2442
    real_srcrect.y = 0;
slouken@2908
  2443
    real_srcrect.w = texture->w;
slouken@2908
  2444
    real_srcrect.h = texture->h;
slouken@2753
  2445
    if (srcrect) {
slouken@2908
  2446
        if (!SDL_IntersectRect(srcrect, &real_srcrect, &real_srcrect)) {
slouken@2908
  2447
            return 0;
slouken@2908
  2448
        }
slouken@2753
  2449
    }
slouken@2908
  2450
slouken@2908
  2451
    real_dstrect.x = 0;
slouken@2908
  2452
    real_dstrect.y = 0;
slouken@2908
  2453
    real_dstrect.w = window->w;
slouken@2908
  2454
    real_dstrect.h = window->h;
slouken@2753
  2455
    if (dstrect) {
slouken@2908
  2456
        if (!SDL_IntersectRect(dstrect, &real_dstrect, &real_dstrect)) {
slouken@2908
  2457
            return 0;
slouken@2908
  2458
        }
slouken@2912
  2459
        /* Clip srcrect by the same amount as dstrect was clipped */
slouken@2912
  2460
        if (dstrect->w != real_dstrect.w) {
slouken@2912
  2461
            int deltax = (real_dstrect.x - dstrect->x);
slouken@2912
  2462
            int deltaw = (real_dstrect.w - dstrect->w);
slouken@2912
  2463
            real_srcrect.x += (deltax * dstrect->w) / real_srcrect.w;
slouken@2912
  2464
            real_srcrect.w += (deltaw * dstrect->w) / real_srcrect.w;
slouken@2912
  2465
        }
slouken@2912
  2466
        if (dstrect->h != real_dstrect.h) {
slouken@2912
  2467
            int deltay = (real_dstrect.y - dstrect->y);
slouken@2912
  2468
            int deltah = (real_dstrect.h - dstrect->h);
slouken@2912
  2469
            real_srcrect.y += (deltay * dstrect->h) / real_srcrect.h;
slouken@2912
  2470
            real_srcrect.h += (deltah * dstrect->h) / real_srcrect.h;
slouken@2912
  2471
        }
slouken@2753
  2472
    }
slouken@1895
  2473
slouken@2753
  2474
    return renderer->RenderCopy(renderer, texture, &real_srcrect,
slouken@2753
  2475
                                &real_dstrect);
slouken@1895
  2476
}
slouken@1895
  2477
slouken@1895
  2478
void
slouken@1895
  2479
SDL_RenderPresent(void)
slouken@1895
  2480
{
slouken@2753
  2481
    SDL_Renderer *renderer;
slouken@1895
  2482
slouken@2753
  2483
    if (!_this) {
slouken@2753
  2484
        SDL_UninitializedVideo();
slouken@2753
  2485
        return;
slouken@2753
  2486
    }
slouken@2753
  2487
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2753
  2488
    if (!renderer || !renderer->RenderPresent) {
slouken@2753
  2489
        return;
slouken@2753
  2490
    }
slouken@2753
  2491
    renderer->RenderPresent(renderer);
slouken@1895
  2492
}
slouken@1895
  2493
slouken@1895
  2494
void
slouken@1895
  2495
SDL_DestroyTexture(SDL_TextureID textureID)
slouken@1895
  2496
{
slouken@2753
  2497
    int hash;
slouken@2753
  2498
    SDL_Texture *prev, *texture;
slouken@2753
  2499
    SDL_Renderer *renderer;
slouken@1895
  2500
slouken@2753
  2501
    if (!_this) {
slouken@2753
  2502
        SDL_UninitializedVideo();
slouken@2753
  2503
        return;
slouken@2753
  2504
    }
slouken@2753
  2505
    /* Look up the texture in the hash table */
slouken@2753
  2506
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  2507
    prev = NULL;
slouken@2753
  2508
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@2753
  2509
         prev = texture, texture = texture->next) {
slouken@2753
  2510
        if (texture->id == textureID) {
slouken@2753
  2511
            break;
slouken@2753
  2512
        }
slouken@2753
  2513
    }
slouken@2753
  2514
    if (!texture) {
slouken@2753
  2515
        return;
slouken@2753
  2516
    }
slouken@2753
  2517
    /* Unlink the texture from the list */
slouken@2753
  2518
    if (prev) {
slouken@2753
  2519
        prev->next = texture->next;
slouken@2753
  2520
    } else {
slouken@2753
  2521
        SDL_CurrentDisplay.textures[hash] = texture->next;
slouken@2753
  2522
    }
slouken@1895
  2523
slouken@2753
  2524
    /* Free the texture */
slouken@2753
  2525
    renderer = texture->renderer;
slouken@2753
  2526
    renderer->DestroyTexture(renderer, texture);
slouken@2753
  2527
    SDL_free(texture);
slouken@1895
  2528
}
slouken@1895
  2529
slouken@1895
  2530
void
slouken@1895
  2531
SDL_DestroyRenderer(SDL_WindowID windowID)
slouken@1895
  2532
{
slouken@2753
  2533
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  2534
    SDL_Renderer *renderer;
slouken@2753
  2535
    int i;
slouken@1895
  2536
slouken@2753
  2537
    if (!window) {
slouken@2753
  2538
        return;
slouken@2753
  2539
    }
slouken@2753
  2540
    renderer = window->renderer;
slouken@2753
  2541
    if (!renderer) {
slouken@2753
  2542
        return;
slouken@2753
  2543
    }
slouken@2753
  2544
    /* Free existing textures for this renderer */
slouken@2753
  2545
    for (i = 0; i < SDL_arraysize(SDL_CurrentDisplay.textures); ++i) {
slouken@2753
  2546
        SDL_Texture *texture;
slouken@2753
  2547
        SDL_Texture *prev = NULL;
slouken@2753
  2548
        SDL_Texture *next;
slouken@2753
  2549
        for (texture = SDL_CurrentDisplay.textures[i]; texture;
slouken@2753
  2550
             texture = next) {
slouken@2753
  2551
            next = texture->next;
slouken@2753
  2552
            if (texture->renderer == renderer) {
slouken@2753
  2553
                if (prev) {
slouken@2753
  2554
                    prev->next = next;
slouken@2753
  2555
                } else {
slouken@2753
  2556
                    SDL_CurrentDisplay.textures[i] = next;
slouken@2753
  2557
                }
slouken@2753
  2558
                renderer->DestroyTexture(renderer, texture);
slouken@2753
  2559
                SDL_free(texture);
slouken@2753
  2560
            } else {
slouken@2753
  2561
                prev = texture;
slouken@2753
  2562
            }
slouken@2753
  2563
        }
slouken@2753
  2564
    }
slouken@1895
  2565
slouken@2753
  2566
    /* Free the renderer instance */
slouken@2753
  2567
    renderer->DestroyRenderer(renderer);
slouken@1895
  2568
slouken@2753
  2569
    /* Clear references */
slouken@2753
  2570
    window->renderer = NULL;
slouken@2753
  2571
    if (SDL_CurrentDisplay.current_renderer == renderer) {
slouken@2753
  2572
        SDL_CurrentDisplay.current_renderer = NULL;
slouken@2753
  2573
    }
slouken@1895
  2574
}
slouken@1895
  2575
slouken@3025
  2576
SDL_bool
slouken@3025
  2577
SDL_IsScreenSaverEnabled()
slouken@3025
  2578
{
slouken@3025
  2579
    if (!_this) {
slouken@3025
  2580
        return SDL_TRUE;
slouken@3025
  2581
    }
slouken@3025
  2582
    return _this->suspend_screensaver ? SDL_FALSE : SDL_TRUE;
slouken@3025
  2583
}
slouken@3025
  2584
slouken@3025
  2585
void
slouken@3025
  2586
SDL_EnableScreenSaver()
slouken@3025
  2587
{
slouken@3025
  2588
    if (!_this) {
slouken@3025
  2589
        return;
slouken@3025
  2590
    }
slouken@3025
  2591
    if (!_this->suspend_screensaver) {
slouken@3025
  2592
        return;
slouken@3025
  2593
    }
slouken@3025
  2594
    _this->suspend_screensaver = SDL_FALSE;
slouken@3025
  2595
    if (_this->SuspendScreenSaver) {
slouken@3025
  2596
        _this->SuspendScreenSaver(_this);
slouken@3025
  2597
    }
slouken@3025
  2598
}
slouken@3025
  2599
slouken@3025
  2600
void
slouken@3025
  2601
SDL_DisableScreenSaver()
slouken@3025
  2602
{
slouken@3025
  2603
    if (!_this) {
slouken@3025
  2604
        return;
slouken@3025
  2605
    }
slouken@3025
  2606
    if (_this->suspend_screensaver) {
slouken@3025
  2607
        return;
slouken@3025
  2608
    }
slouken@3025
  2609
    _this->suspend_screensaver = SDL_TRUE;
slouken@3025
  2610
    if (_this->SuspendScreenSaver) {
slouken@3025
  2611
        _this->SuspendScreenSaver(_this);
slouken@3025
  2612
    }
slouken@3025
  2613
}
slouken@3025
  2614
slouken@1895
  2615
void
slouken@1895
  2616
SDL_VideoQuit(void)
slouken@1895
  2617
{
slouken@2753
  2618
    int i, j;
slouken@1895
  2619
slouken@2753
  2620
    if (!_this) {
slouken@2753
  2621
        return;
slouken@2753
  2622
    }
slouken@2753
  2623
    /* Halt event processing before doing anything else */
slouken@2753
  2624
    SDL_StopEventLoop();
slouken@3029
  2625
    SDL_EnableScreenSaver();
slouken@1895
  2626
slouken@2753
  2627
    /* Clean up the system video */
slouken@2753
  2628
    for (i = _this->num_displays; i--;) {
slouken@2753
  2629
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2630
        for (j = display->num_windows; j--;) {
slouken@2753
  2631
            SDL_DestroyWindow(display->windows[i].id);
slouken@2753
  2632
        }
slouken@2753
  2633
        if (display->windows) {
slouken@2753
  2634
            SDL_free(display->windows);
slouken@2753
  2635
            display->windows = NULL;
slouken@2753
  2636
        }
slouken@2753
  2637
        display->num_windows = 0;
slouken@2753
  2638
        if (display->render_drivers) {
slouken@2753
  2639
            SDL_free(display->render_drivers);
slouken@2753
  2640
            display->render_drivers = NULL;
slouken@2753
  2641
        }
slouken@2753
  2642
        display->num_render_drivers = 0;
slouken@2753
  2643
    }
slouken@2753
  2644
    _this->VideoQuit(_this);
slouken@1895
  2645
slouken@2753
  2646
    for (i = _this->num_displays; i--;) {
slouken@2753
  2647
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2648
        for (j = display->num_display_modes; j--;) {
slouken@2753
  2649
            if (display->display_modes[j].driverdata) {
slouken@2753
  2650
                SDL_free(display->display_modes[j].driverdata);
slouken@2753
  2651
                display->display_modes[j].driverdata = NULL;
slouken@2753
  2652
            }
slouken@2753
  2653
        }
slouken@2753
  2654
        if (display->display_modes) {
slouken@2753
  2655
            SDL_free(display->display_modes);
slouken@2753
  2656
            display->display_modes = NULL;
slouken@2753
  2657
        }
slouken@2753
  2658
        if (display->desktop_mode.driverdata) {
slouken@2753
  2659
            SDL_free(display->desktop_mode.driverdata);
slouken@2753
  2660
            display->desktop_mode.driverdata = NULL;
slouken@2753
  2661
        }
slouken@2753
  2662
        if (display->palette) {
slouken@2753
  2663
            SDL_FreePalette(display->palette);
slouken@2753
  2664
            display->palette = NULL;
slouken@2753
  2665
        }
slouken@2753
  2666
        if (display->gamma) {
slouken@2753
  2667
            SDL_free(display->gamma);
slouken@2753
  2668
            display->gamma = NULL;
slouken@2753
  2669
        }
slouken@2753
  2670
        if (display->driverdata) {
slouken@2753
  2671
            SDL_free(display->driverdata);
slouken@2753
  2672
            display->driverdata = NULL;
slouken@2753
  2673
        }
slouken@2753
  2674
    }
slouken@2753
  2675
    if (_this->displays) {
slouken@2753
  2676
        SDL_free(_this->displays);
slouken@2753
  2677
        _this->displays = NULL;
slouken@2753
  2678
    }
slouken@2753
  2679
    _this->free(_this);
slouken@2753
  2680
    _this = NULL;
slouken@0
  2681
}
slouken@0
  2682
slouken@1895
  2683
int
slouken@1895
  2684
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2685
{
slouken@2753
  2686
    int retval;
slouken@0
  2687
slouken@2753
  2688
    if (!_this) {
slouken@2753
  2689
        SDL_UninitializedVideo();
slouken@2753
  2690
        return -1;
slouken@2753
  2691
    }
slouken@3057
  2692
    if (_this->gl_config.driver_loaded) {
slouken@3057
  2693
        if (path && SDL_strcmp(path, _this->gl_config.driver_path) != 0) {
slouken@3057
  2694
            SDL_SetError("OpenGL library already loaded");
slouken@3057
  2695
            return -1;
slouken@3057
  2696
        }
slouken@3057
  2697
        retval = 0;
slouken@3057
  2698
    } else {
slouken@3057
  2699
        if (!_this->GL_LoadLibrary) {
slouken@3057
  2700
            SDL_SetError("No dynamic GL support in video driver");
slouken@3057
  2701
            return -1;
slouken@3057
  2702
        }
slouken@2753
  2703
        retval = _this->GL_LoadLibrary(_this, path);
slouken@3057
  2704
    }
slouken@3057
  2705
    if (retval == 0) {
slouken@3057
  2706
        ++_this->gl_config.driver_loaded;
slouken@2753
  2707
    }
slouken@2753
  2708
    return (retval);
slouken@0
  2709
}
slouken@0
  2710
slouken@2753
  2711
void *
slouken@1895
  2712
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2713
{
slouken@2753
  2714
    void *func;
slouken@0
  2715
slouken@2753
  2716
    if (!_this) {
slouken@2753
  2717
        SDL_UninitializedVideo();
slouken@2753
  2718
        return NULL;
slouken@2753
  2719
    }
slouken@2753
  2720
    func = NULL;
slouken@2753
  2721
    if (_this->GL_GetProcAddress) {
slouken@2753
  2722
        if (_this->gl_config.driver_loaded) {
slouken@2753
  2723
            func = _this->GL_GetProcAddress(_this, proc);
slouken@2753
  2724
        } else {
slouken@2753
  2725
            SDL_SetError("No GL driver has been loaded");
slouken@2753
  2726
        }
slouken@2753
  2727
    } else {
slouken@2753
  2728
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2729
    }
slouken@2753
  2730
    return func;
slouken@0
  2731
}
slouken@0
  2732
slouken@3057
  2733
void
slouken@3057
  2734
SDL_GL_UnloadLibrary(void)
slouken@3057
  2735
{
slouken@3057
  2736
    if (!_this) {
slouken@3057
  2737
        SDL_UninitializedVideo();
slouken@3057
  2738
        return;
slouken@3057
  2739
    }
slouken@3057
  2740
    if (_this->gl_config.driver_loaded > 0) {
slouken@3057
  2741
        if (--_this->gl_config.driver_loaded > 0) {
slouken@3057
  2742
            return;
slouken@3057
  2743
        }
slouken@3057
  2744
        if (_this->GL_UnloadLibrary) {
slouken@3057
  2745
            _this->GL_UnloadLibrary(_this);
slouken@3057
  2746
        }
slouken@3057
  2747
    }
slouken@3057
  2748
}
slouken@3057
  2749
slouken@1926
  2750
SDL_bool
slouken@1926
  2751
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2752
{
hfutrell@2745
  2753
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2754
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@2753
  2755
    const char *extensions;
slouken@2753
  2756
    const char *start;
slouken@2753
  2757
    const char *where, *terminator;
slouken@1926
  2758
slouken@2753
  2759
    /* Extension names should not have spaces. */
slouken@2753
  2760
    where = SDL_strchr(extension, ' ');
slouken@2753
  2761
    if (where || *extension == '\0') {
slouken@2753
  2762
        return SDL_FALSE;
slouken@2753
  2763
    }
slouken@2753
  2764
    /* See if there's an environment variable override */
slouken@2753
  2765
    start = SDL_getenv(extension);
slouken@2753
  2766
    if (start && *start == '0') {
slouken@2753
  2767
        return SDL_FALSE;
slouken@2753
  2768
    }
slouken@2753
  2769
    /* Lookup the available extensions */
slouken@2753
  2770
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@2753
  2771
    if (glGetStringFunc) {
slouken@2753
  2772
        extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@2753
  2773
    } else {
slouken@2753
  2774
        extensions = NULL;
slouken@2753
  2775
    }
slouken@2753
  2776
    if (!extensions) {
slouken@2753
  2777
        return SDL_FALSE;
slouken@2753
  2778
    }
slouken@2753
  2779
    /*
slouken@2753
  2780
     * It takes a bit of care to be fool-proof about parsing the OpenGL
slouken@2753
  2781
     * extensions string. Don't be fooled by sub-strings, etc.
slouken@2753
  2782
     */
slouken@1926
  2783
slouken@2753
  2784
    start = extensions;
slouken@1926
  2785
slouken@2753
  2786
    for (;;) {
slouken@2753
  2787
        where = SDL_strstr(start, extension);
slouken@2753
  2788
        if (!where)
slouken@2753
  2789
            break;
slouken@1926
  2790
slouken@2753
  2791
        terminator = where + SDL_strlen(extension);
slouken@2753
  2792
        if (where == start || *(where - 1) == ' ')
slouken@2753
  2793
            if (*terminator == ' ' || *terminator == '\0')
slouken@2753
  2794
                return SDL_TRUE;
slouken@1926
  2795
slouken@2753
  2796
        start = terminator;
slouken@2753
  2797
    }
slouken@2753
  2798
    return SDL_FALSE;
slouken@1926
  2799
#else
slouken@2753
  2800
    return SDL_FALSE;
slouken@1926
  2801
#endif
slouken@1926
  2802
}
slouken@1926
  2803
slouken@1895
  2804
int
slouken@1895
  2805
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2806
{
hfutrell@2745
  2807
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2808
    int retval;
slouken@0
  2809
slouken@2753
  2810
    if (!_this) {
slouken@2753
  2811
        SDL_UninitializedVideo();
slouken@2753
  2812
        return -1;
slouken@2753
  2813
    }
slouken@2753
  2814
    retval = 0;
slouken@2753
  2815
    switch (attr) {
slouken@2753
  2816
    case SDL_GL_RED_SIZE:
slouken@2753
  2817
        _this->gl_config.red_size = value;
slouken@2753
  2818
        break;
slouken@2753
  2819
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2820
        _this->gl_config.green_size = value;
slouken@2753
  2821
        break;
slouken@2753
  2822
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2823
        _this->gl_config.blue_size = value;
slouken@2753
  2824
        break;
slouken@2753
  2825
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2826
        _this->gl_config.alpha_size = value;
slouken@2753
  2827
        break;
slouken@2753
  2828
    case SDL_GL_DOUBLEBUFFER:
slouken@2753
  2829
        _this->gl_config.double_buffer = value;
slouken@2753
  2830
        break;
slouken@2753
  2831
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2832
        _this->gl_config.buffer_size = value;
slouken@2753
  2833
        break;
slouken@2753
  2834
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2835
        _this->gl_config.depth_size = value;
slouken@2753
  2836
        break;
slouken@2753
  2837
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2838
        _this->gl_config.stencil_size = value;
slouken@2753
  2839
        break;
slouken@2753
  2840
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2841
        _this->gl_config.accum_red_size = value;
slouken@2753
  2842
        break;
slouken@2753
  2843
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2844
        _this->gl_config.accum_green_size = value;
slouken@2753
  2845
        break;
slouken@2753
  2846
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2847
        _this->gl_config.accum_blue_size = value;
slouken@2753
  2848
        break;
slouken@2753
  2849
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2850
        _this->gl_config.accum_alpha_size = value;
slouken@2753
  2851
        break;
slouken@2753
  2852
    case SDL_GL_STEREO:
slouken@2753
  2853
        _this->gl_config.stereo = value;
slouken@2753
  2854
        break;
slouken@2753
  2855
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@2753
  2856
        _this->gl_config.multisamplebuffers = value;
slouken@2753
  2857
        break;
slouken@2753
  2858
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@2753
  2859
        _this->gl_config.multisamplesamples = value;
slouken@2753
  2860
        break;
slouken@2753
  2861
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2862
        _this->gl_config.accelerated = value;
slouken@2753
  2863
        break;
slouken@2753
  2864
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2865
        _this->gl_config.retained_backing = value;
slouken@2753
  2866
        break;
slouken@3100
  2867
    case SDL_GL_CONTEXT_MAJOR_VERSION:
slouken@3100
  2868
        _this->gl_config.major_version = value;
slouken@3100
  2869
        break;
slouken@3100
  2870
    case SDL_GL_CONTEXT_MINOR_VERSION:
slouken@3100
  2871
        _this->gl_config.minor_version = value;
slouken@3100
  2872
        break;
slouken@2753
  2873
    default:
slouken@2753
  2874
        SDL_SetError("Unk