src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Mon, 01 Dec 2008 00:07:45 +0000
changeset 2814 e841aa93e6be
parent 2810 27cb878a278e
child 2849 523b10db69f8
permissions -rw-r--r--
indent
slouken@0
     1
/*
slouken@0
     2
    SDL - Simple DirectMedia Layer
slouken@1312
     3
    Copyright (C) 1997-2006 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@0
    26
#include "SDL.h"
slouken@0
    27
#include "SDL_sysvideo.h"
slouken@0
    28
#include "SDL_blit.h"
slouken@0
    29
#include "SDL_pixels_c.h"
slouken@1918
    30
#include "SDL_renderer_gl.h"
hfutrell@2745
    31
#include "SDL_renderer_gles.h"
slouken@1895
    32
#include "SDL_renderer_sw.h"
slouken@1361
    33
#include "../events/SDL_sysevents.h"
slouken@1361
    34
#include "../events/SDL_events_c.h"
slouken@0
    35
hfutrell@2745
    36
#if SDL_VIDEO_OPENGL_ES
hfutrell@2745
    37
#include "SDL_opengles.h"
slouken@2753
    38
#endif /* SDL_VIDEO_OPENGL_ES */
hfutrell@2745
    39
slouken@1926
    40
#if SDL_VIDEO_OPENGL
slouken@1926
    41
#include "SDL_opengl.h"
slouken@1926
    42
slouken@1926
    43
/* On Windows, windows.h defines CreateWindow */
slouken@1926
    44
#ifdef CreateWindow
slouken@1926
    45
#undef CreateWindow
slouken@1926
    46
#endif
slouken@2753
    47
#endif /* SDL_VIDEO_OPENGL */
slouken@1926
    48
slouken@0
    49
/* Available video drivers */
slouken@0
    50
static VideoBootStrap *bootstrap[] = {
slouken@1931
    51
#if SDL_VIDEO_DRIVER_COCOA
slouken@2753
    52
    &COCOA_bootstrap,
icculus@1133
    53
#endif
slouken@1361
    54
#if SDL_VIDEO_DRIVER_X11
slouken@2753
    55
    &X11_bootstrap,
slouken@0
    56
#endif
slouken@1361
    57
#if SDL_VIDEO_DRIVER_NANOX
slouken@2753
    58
    &NX_bootstrap,
slouken@30
    59
#endif
slouken@1361
    60
#if SDL_VIDEO_DRIVER_IPOD
slouken@2753
    61
    &iPod_bootstrap,
icculus@1140
    62
#endif
slouken@1361
    63
#if SDL_VIDEO_DRIVER_WSCONS
slouken@2753
    64
    &WSCONS_bootstrap,
icculus@1187
    65
#endif
slouken@1361
    66
#if SDL_VIDEO_DRIVER_FBCON
slouken@2753
    67
    &FBCON_bootstrap,
slouken@0
    68
#endif
slouken@1361
    69
#if SDL_VIDEO_DRIVER_DIRECTFB
slouken@2753
    70
    &DirectFB_bootstrap,
slouken@167
    71
#endif
slouken@1361
    72
#if SDL_VIDEO_DRIVER_PS2GS
slouken@2753
    73
    &PS2GS_bootstrap,
slouken@0
    74
#endif
slouken@1361
    75
#if SDL_VIDEO_DRIVER_VGL
slouken@2753
    76
    &VGL_bootstrap,
slouken@75
    77
#endif
slouken@1361
    78
#if SDL_VIDEO_DRIVER_SVGALIB
slouken@2753
    79
    &SVGALIB_bootstrap,
slouken@0
    80
#endif
slouken@1361
    81
#if SDL_VIDEO_DRIVER_GAPI
slouken@2753
    82
    &GAPI_bootstrap,
slouken@1361
    83
#endif
slouken@1895
    84
#if SDL_VIDEO_DRIVER_WIN32
slouken@2753
    85
    &WIN32_bootstrap,
slouken@1361
    86
#endif
slouken@1361
    87
#if SDL_VIDEO_DRIVER_BWINDOW
slouken@2753
    88
    &BWINDOW_bootstrap,
slouken@1361
    89
#endif
slouken@1361
    90
#if SDL_VIDEO_DRIVER_PHOTON
slouken@2753
    91
    &ph_bootstrap,
slouken@1361
    92
#endif
slouken@1361
    93
#if SDL_VIDEO_DRIVER_EPOC
slouken@2753
    94
    &EPOC_bootstrap,
slouken@1361
    95
#endif
slouken@1361
    96
#if SDL_VIDEO_DRIVER_XBIOS
slouken@2753
    97
    &XBIOS_bootstrap,
slouken@1361
    98
#endif
slouken@1361
    99
#if SDL_VIDEO_DRIVER_GEM
slouken@2753
   100
    &GEM_bootstrap,
slouken@1361
   101
#endif
slouken@1361
   102
#if SDL_VIDEO_DRIVER_DC
slouken@2753
   103
    &DC_bootstrap,
slouken@1361
   104
#endif
slouken@1361
   105
#if SDL_VIDEO_DRIVER_RISCOS
slouken@2753
   106
    &RISCOS_bootstrap,
slouken@1361
   107
#endif
slouken@1361
   108
#if SDL_VIDEO_DRIVER_OS2FS
slouken@2753
   109
    &OS2FSLib_bootstrap,
slouken@1361
   110
#endif
hfutrell@2743
   111
#if SDL_VIDEO_DRIVER_NDS
slouken@2753
   112
    &NDS_bootstrap,
slouken@2735
   113
#endif
hfutrell@2745
   114
#if SDL_VIDEO_DRIVER_UIKIT
slouken@2753
   115
    &UIKIT_bootstrap,
hfutrell@2745
   116
#endif
slouken@1361
   117
#if SDL_VIDEO_DRIVER_DUMMY
slouken@2753
   118
    &DUMMY_bootstrap,
slouken@610
   119
#endif
slouken@2753
   120
    NULL
slouken@0
   121
};
slouken@173
   122
slouken@1895
   123
static SDL_VideoDevice *_this = NULL;
slouken@0
   124
slouken@0
   125
/* Various local functions */
slouken@2753
   126
int SDL_VideoInit(const char *driver_name, Uint32 flags);
slouken@2753
   127
void SDL_VideoQuit(void);
slouken@0
   128
slouken@1895
   129
static int
slouken@1895
   130
cmpmodes(const void *A, const void *B)
slouken@1895
   131
{
slouken@2753
   132
    SDL_DisplayMode a = *(const SDL_DisplayMode *) A;
slouken@2753
   133
    SDL_DisplayMode b = *(const SDL_DisplayMode *) B;
slouken@0
   134
slouken@2753
   135
    if (a.w != b.w) {
slouken@2753
   136
        return b.w - a.w;
slouken@2753
   137
    }
slouken@2753
   138
    if (a.h != b.h) {
slouken@2753
   139
        return b.h - a.h;
slouken@2753
   140
    }
slouken@2753
   141
    if (SDL_BITSPERPIXEL(a.format) != SDL_BITSPERPIXEL(b.format)) {
slouken@2753
   142
        return SDL_BITSPERPIXEL(b.format) - SDL_BITSPERPIXEL(a.format);
slouken@2753
   143
    }
slouken@2753
   144
    if (a.refresh_rate != b.refresh_rate) {
slouken@2753
   145
        return b.refresh_rate - a.refresh_rate;
slouken@2753
   146
    }
slouken@2753
   147
    return 0;
slouken@1895
   148
}
slouken@1895
   149
slouken@1912
   150
static void
slouken@1912
   151
SDL_UninitializedVideo()
slouken@1912
   152
{
slouken@2753
   153
    SDL_SetError("Video subsystem has not been initialized");
slouken@1912
   154
}
slouken@1912
   155
slouken@1895
   156
int
slouken@1895
   157
SDL_GetNumVideoDrivers(void)
slouken@1895
   158
{
slouken@2753
   159
    return SDL_arraysize(bootstrap) - 1;
slouken@1895
   160
}
slouken@1895
   161
slouken@2753
   162
const char *
slouken@1895
   163
SDL_GetVideoDriver(int index)
slouken@1895
   164
{
slouken@2753
   165
    if (index >= 0 && index < SDL_GetNumVideoDrivers()) {
slouken@2753
   166
        return bootstrap[index]->name;
slouken@2753
   167
    }
slouken@2753
   168
    return NULL;
slouken@1895
   169
}
slouken@0
   170
slouken@0
   171
/*
slouken@0
   172
 * Initialize the video and event subsystems -- determine native pixel format
slouken@0
   173
 */
slouken@1895
   174
int
slouken@1895
   175
SDL_VideoInit(const char *driver_name, Uint32 flags)
slouken@0
   176
{
slouken@2753
   177
    SDL_VideoDevice *video;
slouken@2753
   178
    int index;
slouken@2753
   179
    int i;
slouken@0
   180
slouken@2753
   181
    /* Toggle the event thread flags, based on OS requirements */
slouken@0
   182
#if defined(MUST_THREAD_EVENTS)
slouken@2753
   183
    flags |= SDL_INIT_EVENTTHREAD;
slouken@0
   184
#elif defined(CANT_THREAD_EVENTS)
slouken@2753
   185
    if ((flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD) {
slouken@2753
   186
        SDL_SetError("OS doesn't support threaded events");
slouken@2753
   187
        return -1;
slouken@2753
   188
    }
slouken@0
   189
#endif
slouken@0
   190
slouken@2753
   191
    /* Start the event loop */
slouken@2753
   192
    if (SDL_StartEventLoop(flags) < 0) {
slouken@2753
   193
        return -1;
slouken@2753
   194
    }
slouken@2753
   195
    /* Check to make sure we don't overwrite '_this' */
slouken@2753
   196
    if (_this != NULL) {
slouken@2753
   197
        SDL_VideoQuit();
slouken@2753
   198
    }
slouken@2753
   199
    /* Select the proper video driver */
slouken@2753
   200
    index = 0;
slouken@2753
   201
    video = NULL;
slouken@2753
   202
    if (driver_name == NULL) {
slouken@2753
   203
        driver_name = SDL_getenv("SDL_VIDEODRIVER");
slouken@2753
   204
    }
slouken@2753
   205
    if (driver_name != NULL) {
slouken@2753
   206
        for (i = 0; bootstrap[i]; ++i) {
slouken@2753
   207
            if (SDL_strcasecmp(bootstrap[i]->name, driver_name) == 0) {
slouken@2753
   208
                if (bootstrap[i]->available()) {
slouken@2753
   209
                    video = bootstrap[i]->create(index);
slouken@2753
   210
                }
slouken@2753
   211
                break;
slouken@2753
   212
            }
slouken@2753
   213
        }
slouken@2753
   214
    } else {
slouken@2753
   215
        for (i = 0; bootstrap[i]; ++i) {
slouken@2753
   216
            if (bootstrap[i]->available()) {
slouken@2753
   217
                video = bootstrap[i]->create(index);
slouken@2753
   218
                if (video != NULL) {
slouken@2753
   219
                    break;
slouken@2753
   220
                }
slouken@2753
   221
            }
slouken@2753
   222
        }
slouken@2753
   223
    }
slouken@2753
   224
    if (video == NULL) {
slouken@2753
   225
        if (driver_name) {
slouken@2753
   226
            SDL_SetError("%s not available", driver_name);
slouken@2753
   227
        } else {
slouken@2753
   228
            SDL_SetError("No available video device");
slouken@2753
   229
        }
slouken@2753
   230
        return -1;
slouken@2753
   231
    }
slouken@2753
   232
    _this = video;
slouken@2753
   233
    _this->name = bootstrap[i]->name;
slouken@2753
   234
    _this->next_object_id = 1;
slouken@0
   235
slouken@0
   236
slouken@2753
   237
    /* Set some very sane GL defaults */
slouken@2753
   238
    _this->gl_config.driver_loaded = 0;
slouken@2753
   239
    _this->gl_config.dll_handle = NULL;
slouken@2753
   240
    _this->gl_config.red_size = 3;
slouken@2753
   241
    _this->gl_config.green_size = 3;
slouken@2753
   242
    _this->gl_config.blue_size = 2;
slouken@2753
   243
    _this->gl_config.alpha_size = 0;
slouken@2753
   244
    _this->gl_config.buffer_size = 0;
slouken@2753
   245
    _this->gl_config.depth_size = 16;
slouken@2753
   246
    _this->gl_config.stencil_size = 0;
slouken@2753
   247
    _this->gl_config.double_buffer = 1;
slouken@2753
   248
    _this->gl_config.accum_red_size = 0;
slouken@2753
   249
    _this->gl_config.accum_green_size = 0;
slouken@2753
   250
    _this->gl_config.accum_blue_size = 0;
slouken@2753
   251
    _this->gl_config.accum_alpha_size = 0;
slouken@2753
   252
    _this->gl_config.stereo = 0;
slouken@2753
   253
    _this->gl_config.multisamplebuffers = 0;
slouken@2753
   254
    _this->gl_config.multisamplesamples = 0;
slouken@2753
   255
    _this->gl_config.retained_backing = 1;
slouken@2753
   256
    _this->gl_config.accelerated = -1;  /* not known, don't set */
slouken@0
   257
slouken@2753
   258
    /* Initialize the video subsystem */
slouken@2753
   259
    if (_this->VideoInit(_this) < 0) {
slouken@2753
   260
        SDL_VideoQuit();
slouken@2753
   261
        return -1;
slouken@2753
   262
    }
slouken@2753
   263
    /* Make sure some displays were added */
slouken@2753
   264
    if (_this->num_displays == 0) {
slouken@2753
   265
        SDL_SetError("The video driver did not add any displays");
slouken@2753
   266
        SDL_VideoQuit();
slouken@2753
   267
        return (-1);
slouken@2753
   268
    }
slouken@2753
   269
    /* The software renderer is always available */
slouken@2753
   270
    for (i = 0; i < _this->num_displays; ++i) {
hfutrell@2744
   271
#if SDL_VIDEO_RENDER_OGL
slouken@2753
   272
        SDL_AddRenderDriver(i, &GL_RenderDriver);
hfutrell@2744
   273
#endif
hfutrell@2745
   274
hfutrell@2745
   275
#if SDL_VIDEO_RENDER_OGL_ES
slouken@2753
   276
        SDL_AddRenderDriver(i, &GL_ES_RenderDriver);
hfutrell@2745
   277
#endif
slouken@2753
   278
        if (_this->displays[i].num_render_drivers > 0) {
slouken@2753
   279
            SDL_AddRenderDriver(i, &SW_RenderDriver);
slouken@2753
   280
        }
slouken@2753
   281
    }
slouken@0
   282
slouken@2753
   283
    /* We're ready to go! */
slouken@2753
   284
    return 0;
slouken@0
   285
}
slouken@0
   286
slouken@2753
   287
const char *
slouken@1895
   288
SDL_GetCurrentVideoDriver()
slouken@0
   289
{
slouken@2753
   290
    if (!_this) {
slouken@2753
   291
        SDL_UninitializedVideo();
slouken@2753
   292
        return NULL;
slouken@2753
   293
    }
slouken@2753
   294
    return _this->name;
slouken@0
   295
}
slouken@0
   296
slouken@1895
   297
SDL_VideoDevice *
slouken@1895
   298
SDL_GetVideoDevice()
slouken@0
   299
{
slouken@2753
   300
    return _this;
slouken@0
   301
}
slouken@0
   302
slouken@1895
   303
int
slouken@1895
   304
SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode)
slouken@0
   305
{
slouken@2753
   306
    SDL_VideoDisplay display;
slouken@0
   307
slouken@2753
   308
    SDL_zero(display);
slouken@2753
   309
    if (desktop_mode) {
slouken@2753
   310
        display.desktop_mode = *desktop_mode;
slouken@2753
   311
    }
slouken@2753
   312
    display.current_mode = display.desktop_mode;
slouken@1895
   313
slouken@2753
   314
    return SDL_AddVideoDisplay(&display);
slouken@0
   315
}
slouken@0
   316
slouken@1895
   317
int
slouken@1895
   318
SDL_AddVideoDisplay(const SDL_VideoDisplay * display)
slouken@0
   319
{
slouken@2753
   320
    SDL_VideoDisplay *displays;
slouken@2753
   321
    int index = -1;
slouken@0
   322
slouken@2753
   323
    displays =
slouken@2753
   324
        SDL_realloc(_this->displays,
slouken@2753
   325
                    (_this->num_displays + 1) * sizeof(*displays));
slouken@2753
   326
    if (displays) {
slouken@2753
   327
        index = _this->num_displays++;
slouken@2753
   328
        displays[index] = *display;
slouken@2753
   329
        displays[index].device = _this;
slouken@2753
   330
        _this->displays = displays;
slouken@2753
   331
    } else {
slouken@2753
   332
        SDL_OutOfMemory();
slouken@2753
   333
    }
slouken@2753
   334
    return index;
slouken@0
   335
}
slouken@0
   336
slouken@1895
   337
int
slouken@1895
   338
SDL_GetNumVideoDisplays(void)
slouken@0
   339
{
slouken@2753
   340
    if (!_this) {
slouken@2753
   341
        SDL_UninitializedVideo();
slouken@2753
   342
        return 0;
slouken@2753
   343
    }
slouken@2753
   344
    return _this->num_displays;
slouken@0
   345
}
slouken@0
   346
slouken@1895
   347
int
slouken@1895
   348
SDL_SelectVideoDisplay(int index)
slouken@0
   349
{
slouken@2753
   350
    if (!_this) {
slouken@2753
   351
        SDL_UninitializedVideo();
slouken@2753
   352
        return (-1);
slouken@2753
   353
    }
slouken@2753
   354
    if (index < 0 || index >= _this->num_displays) {
slouken@2753
   355
        SDL_SetError("index must be in the range 0 - %d",
slouken@2753
   356
                     _this->num_displays - 1);
slouken@2753
   357
        return -1;
slouken@2753
   358
    }
slouken@2753
   359
    _this->current_display = index;
slouken@2753
   360
    return 0;
slouken@1963
   361
}
slouken@1963
   362
slouken@1963
   363
int
slouken@1963
   364
SDL_GetCurrentVideoDisplay(void)
slouken@1963
   365
{
slouken@2753
   366
    if (!_this) {
slouken@2753
   367
        SDL_UninitializedVideo();
slouken@2753
   368
        return (-1);
slouken@2753
   369
    }
slouken@2753
   370
    return _this->current_display;
slouken@0
   371
}
slouken@0
   372
slouken@1895
   373
SDL_bool
slouken@1895
   374
SDL_AddDisplayMode(int displayIndex, const SDL_DisplayMode * mode)
slouken@0
   375
{
slouken@2753
   376
    SDL_VideoDisplay *display = &_this->displays[displayIndex];
slouken@2753
   377
    SDL_DisplayMode *modes;
slouken@2753
   378
    int i, nmodes;
slouken@0
   379
slouken@2753
   380
    /* Make sure we don't already have the mode in the list */
slouken@2753
   381
    modes = display->display_modes;
slouken@2753
   382
    nmodes = display->num_display_modes;
slouken@2753
   383
    for (i = nmodes; i--;) {
slouken@2753
   384
        if (SDL_memcmp(mode, &modes[i], sizeof(*mode)) == 0) {
slouken@2753
   385
            return SDL_FALSE;
slouken@2753
   386
        }
slouken@2753
   387
    }
slouken@1895
   388
slouken@2753
   389
    /* Go ahead and add the new mode */
slouken@2753
   390
    if (nmodes == display->max_display_modes) {
slouken@2753
   391
        modes =
slouken@2753
   392
            SDL_realloc(modes,
slouken@2753
   393
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@2753
   394
        if (!modes) {
slouken@2753
   395
            return SDL_FALSE;
slouken@2753
   396
        }
slouken@2753
   397
        display->display_modes = modes;
slouken@2753
   398
        display->max_display_modes += 32;
slouken@2753
   399
    }
slouken@2753
   400
    modes[nmodes] = *mode;
slouken@2753
   401
    display->num_display_modes++;
slouken@1895
   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@2753
   638
            SDL_SetWindowPosition(window->id, SDL_WINDOWPOS_CENTERED,
slouken@2753
   639
                                  SDL_WINDOWPOS_CENTERED);
slouken@2753
   640
        }
slouken@2753
   641
    }
slouken@1895
   642
slouken@2753
   643
    return 0;
slouken@0
   644
}
slouken@0
   645
slouken@1895
   646
int
slouken@1895
   647
SDL_SetFullscreenDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   648
{
slouken@2753
   649
    SDL_VideoDisplay *display;
slouken@2753
   650
    SDL_DisplayMode fullscreen_mode;
slouken@2753
   651
    int i;
slouken@0
   652
slouken@2753
   653
    if (!_this) {
slouken@2753
   654
        SDL_UninitializedVideo();
slouken@2753
   655
        return -1;
slouken@2753
   656
    }
slouken@2753
   657
    display = &SDL_CurrentDisplay;
slouken@2753
   658
    if (!mode) {
slouken@2753
   659
        mode = &display->desktop_mode;
slouken@2753
   660
    }
slouken@2753
   661
    SDL_GetClosestDisplayMode(mode, &fullscreen_mode);
slouken@2753
   662
    if (SDL_memcmp
slouken@2753
   663
        (&fullscreen_mode, &display->fullscreen_mode,
slouken@2753
   664
         sizeof(fullscreen_mode)) == 0) {
slouken@2753
   665
        /* Nothing to do... */
slouken@2753
   666
        return 0;
slouken@2753
   667
    }
slouken@2753
   668
    display->fullscreen_mode = fullscreen_mode;
slouken@0
   669
slouken@2753
   670
    /* Actually set the mode if we have a fullscreen window visible */
slouken@2753
   671
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
   672
        SDL_Window *window = &display->windows[i];
slouken@2753
   673
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
   674
            if (SDL_SetDisplayMode(&display->fullscreen_mode) < 0) {
slouken@2753
   675
                return -1;
slouken@2753
   676
            }
slouken@2753
   677
        }
slouken@2753
   678
        if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
   679
            SDL_OnWindowResized(window);
slouken@2753
   680
        }
slouken@2753
   681
    }
slouken@2753
   682
    return 0;
slouken@0
   683
}
slouken@0
   684
slouken@1967
   685
int
slouken@1967
   686
SDL_GetFullscreenDisplayMode(SDL_DisplayMode * mode)
slouken@0
   687
{
slouken@2753
   688
    if (!_this) {
slouken@2753
   689
        SDL_UninitializedVideo();
slouken@2753
   690
        return -1;
slouken@2753
   691
    }
slouken@2753
   692
    if (mode) {
slouken@2753
   693
        *mode = SDL_CurrentDisplay.fullscreen_mode;
slouken@2753
   694
    }
slouken@2753
   695
    return 0;
slouken@0
   696
}
slouken@0
   697
slouken@1895
   698
int
slouken@1895
   699
SDL_SetDisplayPalette(const SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   700
{
slouken@2753
   701
    SDL_Palette *palette;
slouken@2753
   702
    int status = 0;
slouken@0
   703
slouken@2753
   704
    if (!_this) {
slouken@2753
   705
        SDL_UninitializedVideo();
slouken@2753
   706
        return -1;
slouken@2753
   707
    }
slouken@2753
   708
    palette = SDL_CurrentDisplay.palette;
slouken@2753
   709
    if (!palette) {
slouken@2753
   710
        SDL_SetError("Display mode does not have a palette");
slouken@2753
   711
        return -1;
slouken@2753
   712
    }
slouken@2753
   713
    status = SDL_SetPaletteColors(palette, colors, firstcolor, ncolors);
slouken@0
   714
slouken@2753
   715
    if (_this->SetDisplayPalette) {
slouken@2753
   716
        if (_this->SetDisplayPalette(_this, palette) < 0) {
slouken@2753
   717
            status = -1;
slouken@2753
   718
        }
slouken@2753
   719
    }
slouken@2753
   720
    return status;
slouken@0
   721
}
slouken@0
   722
slouken@1895
   723
int
slouken@1895
   724
SDL_GetDisplayPalette(SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   725
{
slouken@2753
   726
    SDL_Palette *palette;
slouken@1895
   727
slouken@2753
   728
    if (!_this) {
slouken@2753
   729
        SDL_UninitializedVideo();
slouken@2753
   730
        return -1;
slouken@2753
   731
    }
slouken@2753
   732
    palette = SDL_CurrentDisplay.palette;
slouken@2753
   733
    if (!palette->ncolors) {
slouken@2753
   734
        SDL_SetError("Display mode does not have a palette");
slouken@2753
   735
        return -1;
slouken@2753
   736
    }
slouken@2753
   737
    if (firstcolor < 0 || (firstcolor + ncolors) > palette->ncolors) {
slouken@2753
   738
        SDL_SetError("Palette indices are out of range");
slouken@2753
   739
        return -1;
slouken@2753
   740
    }
slouken@2753
   741
    SDL_memcpy(colors, &palette->colors[firstcolor],
slouken@2753
   742
               ncolors * sizeof(*colors));
slouken@2753
   743
    return 0;
slouken@0
   744
}
slouken@0
   745
slouken@1895
   746
SDL_WindowID
slouken@1895
   747
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
   748
{
slouken@2753
   749
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@2753
   750
                                  SDL_WINDOW_OPENGL |
slouken@2753
   751
                                  SDL_WINDOW_BORDERLESS |
slouken@2753
   752
                                  SDL_WINDOW_RESIZABLE);
slouken@2753
   753
    SDL_VideoDisplay *display;
slouken@2753
   754
    SDL_Window window;
slouken@2753
   755
    int num_windows;
slouken@2753
   756
    SDL_Window *windows;
slouken@0
   757
slouken@2753
   758
    if (!_this) {
slouken@2753
   759
        SDL_UninitializedVideo();
slouken@2753
   760
        return 0;
slouken@2753
   761
    }
slouken@2753
   762
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@2753
   763
        SDL_SetError("No OpenGL support in video driver");
slouken@2753
   764
        return 0;
slouken@2753
   765
    }
slouken@2753
   766
    /* Fullscreen windows don't have any window decorations */
slouken@2753
   767
    if (flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
   768
        flags |= SDL_WINDOW_BORDERLESS;
slouken@2753
   769
        flags &= ~SDL_WINDOW_RESIZABLE;
slouken@2753
   770
    }
slouken@2753
   771
    SDL_zero(window);
slouken@2753
   772
    window.id = _this->next_object_id++;
slouken@2753
   773
    window.x = x;
slouken@2753
   774
    window.y = y;
slouken@2753
   775
    window.w = w;
slouken@2753
   776
    window.h = h;
slouken@2753
   777
    window.flags = (flags & allowed_flags);
slouken@2753
   778
    window.display = _this->current_display;
slouken@1912
   779
slouken@2753
   780
    if (_this->CreateWindow && _this->CreateWindow(_this, &window) < 0) {
slouken@2753
   781
        return 0;
slouken@2753
   782
    }
slouken@2753
   783
    display = &SDL_CurrentDisplay;
slouken@2753
   784
    num_windows = display->num_windows;
slouken@2753
   785
    windows =
slouken@2753
   786
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@2753
   787
    if (!windows) {
slouken@2753
   788
        if (_this->DestroyWindow) {
slouken@2753
   789
            _this->DestroyWindow(_this, &window);
slouken@2753
   790
        }
slouken@2753
   791
        return 0;
slouken@2753
   792
    }
slouken@2753
   793
    windows[num_windows] = window;
slouken@2753
   794
    display->windows = windows;
slouken@2753
   795
    display->num_windows++;
slouken@0
   796
slouken@2753
   797
    if (title) {
slouken@2753
   798
        SDL_SetWindowTitle(window.id, title);
slouken@2753
   799
    }
slouken@2753
   800
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
   801
        SDL_MaximizeWindow(window.id);
slouken@2753
   802
    }
slouken@2753
   803
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
   804
        SDL_MinimizeWindow(window.id);
slouken@2753
   805
    }
slouken@2753
   806
    if (flags & SDL_WINDOW_SHOWN) {
slouken@2753
   807
        SDL_ShowWindow(window.id);
slouken@2753
   808
    }
slouken@2753
   809
    if (flags & SDL_WINDOW_INPUT_GRABBED) {
slouken@2753
   810
        SDL_SetWindowGrab(window.id, 1);
slouken@2753
   811
    }
slouken@2753
   812
    return window.id;
slouken@1895
   813
}
slouken@0
   814
slouken@1895
   815
SDL_WindowID
slouken@1895
   816
SDL_CreateWindowFrom(const void *data)
slouken@1895
   817
{
slouken@2753
   818
    SDL_VideoDisplay *display;
slouken@2753
   819
    SDL_Window window;
slouken@2753
   820
    int num_windows;
slouken@2753
   821
    SDL_Window *windows;
slouken@0
   822
slouken@2753
   823
    if (!_this) {
slouken@2753
   824
        SDL_UninitializedVideo();
slouken@2753
   825
        return (0);
slouken@2753
   826
    }
slouken@2753
   827
    SDL_zero(window);
slouken@2753
   828
    window.id = _this->next_object_id++;
slouken@2753
   829
    window.display = _this->current_display;
slouken@1895
   830
slouken@2753
   831
    if (!_this->CreateWindowFrom ||
slouken@2753
   832
        _this->CreateWindowFrom(_this, &window, data) < 0) {
slouken@2753
   833
        return 0;
slouken@2753
   834
    }
slouken@2753
   835
    display = &SDL_CurrentDisplay;
slouken@2753
   836
    num_windows = display->num_windows;
slouken@2753
   837
    windows =
slouken@2753
   838
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@2753
   839
    if (!windows) {
slouken@2753
   840
        if (_this->DestroyWindow) {
slouken@2753
   841
            _this->DestroyWindow(_this, &window);
slouken@2753
   842
        }
slouken@2753
   843
        if (window.title) {
slouken@2753
   844
            SDL_free(window.title);
slouken@2753
   845
        }
slouken@2753
   846
        return 0;
slouken@2753
   847
    }
slouken@2753
   848
    windows[num_windows] = window;
slouken@2753
   849
    display->windows = windows;
slouken@2753
   850
    display->num_windows++;
slouken@1895
   851
slouken@2753
   852
    return window.id;
slouken@1895
   853
}
slouken@1895
   854
slouken@1924
   855
int
slouken@1928
   856
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
   857
{
slouken@2753
   858
    char *title = window->title;
slouken@1956
   859
slouken@2753
   860
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@2753
   861
        SDL_SetError("No OpenGL support in video driver");
slouken@2753
   862
        return -1;
slouken@2753
   863
    }
slouken@2753
   864
    if (_this->DestroyWindow) {
slouken@2753
   865
        _this->DestroyWindow(_this, window);
slouken@2753
   866
    }
slouken@2753
   867
    window->title = NULL;
slouken@2753
   868
    window->flags =
slouken@2753
   869
        (flags &
slouken@2753
   870
         ~(SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED | SDL_WINDOW_SHOWN |
slouken@2753
   871
           SDL_WINDOW_INPUT_GRABBED));
slouken@1956
   872
slouken@2753
   873
    if (_this->CreateWindow && _this->CreateWindow(_this, window) < 0) {
slouken@2753
   874
        return -1;
slouken@2753
   875
    }
slouken@2753
   876
    if (title) {
slouken@2753
   877
        SDL_SetWindowTitle(window->id, title);
slouken@2753
   878
        SDL_free(title);
slouken@2753
   879
    }
slouken@2753
   880
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
   881
        SDL_MaximizeWindow(window->id);
slouken@2753
   882
    }
slouken@2753
   883
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
   884
        SDL_MinimizeWindow(window->id);
slouken@2753
   885
    }
slouken@2753
   886
    if (flags & SDL_WINDOW_SHOWN) {
slouken@2753
   887
        SDL_ShowWindow(window->id);
slouken@2753
   888
    }
slouken@2753
   889
    if (flags & SDL_WINDOW_INPUT_GRABBED) {
slouken@2753
   890
        SDL_SetWindowGrab(window->id, 1);
slouken@2753
   891
    }
slouken@2753
   892
    return 0;
slouken@1924
   893
}
slouken@1924
   894
slouken@2753
   895
SDL_Window *
slouken@1895
   896
SDL_GetWindowFromID(SDL_WindowID windowID)
slouken@1895
   897
{
slouken@2753
   898
    int i, j;
slouken@1895
   899
slouken@2753
   900
    if (!_this) {
slouken@2753
   901
        SDL_UninitializedVideo();
slouken@2753
   902
        return NULL;
slouken@2753
   903
    }
slouken@2753
   904
    for (i = 0; i < _this->num_displays; ++i) {
slouken@2753
   905
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
   906
        for (j = 0; j < display->num_windows; ++j) {
slouken@2753
   907
            SDL_Window *window = &display->windows[j];
slouken@2753
   908
            if (window->id == windowID) {
slouken@2753
   909
                return window;
slouken@2753
   910
            }
slouken@2753
   911
        }
slouken@2753
   912
    }
slouken@2753
   913
    return NULL;
slouken@1895
   914
}
slouken@1895
   915
slouken@1895
   916
SDL_VideoDisplay *
slouken@1895
   917
SDL_GetDisplayFromWindow(SDL_Window * window)
slouken@1895
   918
{
slouken@2753
   919
    if (!_this) {
slouken@2753
   920
        SDL_UninitializedVideo();
slouken@2753
   921
        return NULL;
slouken@2753
   922
    }
slouken@2753
   923
    if (!window) {
slouken@2753
   924
        return NULL;
slouken@2753
   925
    }
slouken@2753
   926
    return &_this->displays[window->display];
slouken@1895
   927
}
slouken@1895
   928
slouken@1895
   929
Uint32
slouken@1895
   930
SDL_GetWindowFlags(SDL_WindowID windowID)
slouken@1895
   931
{
slouken@2753
   932
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   933
slouken@2753
   934
    if (!window) {
slouken@2753
   935
        return 0;
slouken@2753
   936
    }
slouken@2753
   937
    return window->flags;
slouken@1895
   938
}
slouken@1895
   939
slouken@1895
   940
void
slouken@1895
   941
SDL_SetWindowTitle(SDL_WindowID windowID, const char *title)
slouken@1895
   942
{
slouken@2753
   943
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   944
slouken@2753
   945
    if (!window || title == window->title) {
slouken@2753
   946
        return;
slouken@2753
   947
    }
slouken@2753
   948
    if (window->title) {
slouken@2753
   949
        SDL_free(window->title);
slouken@2753
   950
    }
slouken@2753
   951
    if (title) {
slouken@2753
   952
        window->title = SDL_strdup(title);
slouken@2753
   953
    } else {
slouken@2753
   954
        window->title = NULL;
slouken@2753
   955
    }
slouken@1956
   956
slouken@2753
   957
    if (_this->SetWindowTitle) {
slouken@2753
   958
        _this->SetWindowTitle(_this, window);
slouken@2753
   959
    }
slouken@1895
   960
}
slouken@1895
   961
slouken@2753
   962
const char *
slouken@1895
   963
SDL_GetWindowTitle(SDL_WindowID windowID)
slouken@1895
   964
{
slouken@2753
   965
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   966
slouken@2753
   967
    if (!window) {
slouken@2753
   968
        return NULL;
slouken@2753
   969
    }
slouken@2753
   970
    return window->title;
slouken@1895
   971
}
slouken@1895
   972
slouken@1895
   973
void
slouken@1895
   974
SDL_SetWindowData(SDL_WindowID windowID, void *userdata)
slouken@1895
   975
{
slouken@2753
   976
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   977
slouken@2753
   978
    if (!window) {
slouken@2753
   979
        return;
slouken@2753
   980
    }
slouken@2753
   981
    window->userdata = userdata;
slouken@1895
   982
}
slouken@1895
   983
slouken@2753
   984
void *
slouken@1895
   985
SDL_GetWindowData(SDL_WindowID windowID)
slouken@1895
   986
{
slouken@2753
   987
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   988
slouken@2753
   989
    if (!window) {
slouken@2753
   990
        return NULL;
slouken@2753
   991
    }
slouken@2753
   992
    return window->userdata;
slouken@1895
   993
}
slouken@1895
   994
slouken@1895
   995
void
slouken@1895
   996
SDL_SetWindowPosition(SDL_WindowID windowID, int x, int y)
slouken@1895
   997
{
slouken@2753
   998
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
   999
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1000
slouken@2753
  1001
    if (!window) {
slouken@2753
  1002
        return;
slouken@2753
  1003
    }
slouken@2753
  1004
    if (x == SDL_WINDOWPOS_CENTERED) {
slouken@2753
  1005
        window->x = (display->current_mode.w - window->w) / 2;
slouken@2753
  1006
    } else if (x != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1007
        window->x = x;
slouken@2753
  1008
    }
slouken@2753
  1009
    if (y == SDL_WINDOWPOS_CENTERED) {
slouken@2753
  1010
        window->y = (display->current_mode.h - window->h) / 2;
slouken@2753
  1011
    } else if (y != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1012
        window->y = y;
slouken@2753
  1013
    }
slouken@2753
  1014
    if (_this->SetWindowPosition) {
slouken@2753
  1015
        _this->SetWindowPosition(_this, window);
slouken@2753
  1016
    }
slouken@1895
  1017
}
slouken@1895
  1018
slouken@1895
  1019
void
slouken@1895
  1020
SDL_GetWindowPosition(SDL_WindowID windowID, int *x, int *y)
slouken@1895
  1021
{
slouken@2753
  1022
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1023
slouken@2753
  1024
    if (!window) {
slouken@2753
  1025
        return;
slouken@2753
  1026
    }
slouken@2753
  1027
    if (x) {
slouken@2753
  1028
        *x = window->x;
slouken@2753
  1029
    }
slouken@2753
  1030
    if (y) {
slouken@2753
  1031
        *y = window->y;
slouken@2753
  1032
    }
slouken@1895
  1033
}
slouken@1895
  1034
slouken@1895
  1035
void
slouken@1895
  1036
SDL_SetWindowSize(SDL_WindowID windowID, int w, int h)
slouken@1895
  1037
{
slouken@2753
  1038
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1039
slouken@2753
  1040
    if (!window) {
slouken@2753
  1041
        return;
slouken@2753
  1042
    }
slouken@2753
  1043
    window->w = w;
slouken@2753
  1044
    window->h = h;
slouken@1895
  1045
slouken@2753
  1046
    if (_this->SetWindowSize) {
slouken@2753
  1047
        _this->SetWindowSize(_this, window);
slouken@2753
  1048
    }
slouken@1895
  1049
}
slouken@1895
  1050
slouken@1895
  1051
void
slouken@1895
  1052
SDL_GetWindowSize(SDL_WindowID windowID, int *w, int *h)
slouken@1895
  1053
{
slouken@2753
  1054
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1055
slouken@2753
  1056
    if (!window) {
slouken@2753
  1057
        return;
slouken@2753
  1058
    }
slouken@2753
  1059
    if (w) {
slouken@2753
  1060
        *w = window->w;
slouken@2753
  1061
    }
slouken@2753
  1062
    if (h) {
slouken@2753
  1063
        *h = window->h;
slouken@2753
  1064
    }
slouken@1895
  1065
}
slouken@1895
  1066
slouken@1895
  1067
void
slouken@1895
  1068
SDL_ShowWindow(SDL_WindowID windowID)
slouken@1895
  1069
{
slouken@2753
  1070
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1071
slouken@2753
  1072
    if (!window || (window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1073
        return;
slouken@2753
  1074
    }
slouken@2753
  1075
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1076
slouken@2753
  1077
    if (_this->ShowWindow) {
slouken@2753
  1078
        _this->ShowWindow(_this, window);
slouken@2753
  1079
    }
slouken@1895
  1080
}
slouken@1895
  1081
slouken@1895
  1082
void
slouken@1895
  1083
SDL_HideWindow(SDL_WindowID windowID)
slouken@1895
  1084
{
slouken@2753
  1085
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1086
slouken@2753
  1087
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1088
        return;
slouken@2753
  1089
    }
slouken@2753
  1090
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1091
slouken@2753
  1092
    if (_this->HideWindow) {
slouken@2753
  1093
        _this->HideWindow(_this, window);
slouken@2753
  1094
    }
slouken@1895
  1095
}
slouken@1895
  1096
slouken@1895
  1097
void
slouken@1895
  1098
SDL_RaiseWindow(SDL_WindowID windowID)
slouken@1895
  1099
{
slouken@2753
  1100
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1101
slouken@2753
  1102
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1103
        return;
slouken@2753
  1104
    }
slouken@2753
  1105
    if (_this->RaiseWindow) {
slouken@2753
  1106
        _this->RaiseWindow(_this, window);
slouken@2753
  1107
    }
slouken@1895
  1108
}
slouken@1895
  1109
slouken@1895
  1110
void
slouken@1895
  1111
SDL_MaximizeWindow(SDL_WindowID windowID)
slouken@1895
  1112
{
slouken@2753
  1113
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1114
slouken@2753
  1115
    if (!window || (window->flags & SDL_WINDOW_MAXIMIZED)) {
slouken@2753
  1116
        return;
slouken@2753
  1117
    }
slouken@2753
  1118
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@1895
  1119
slouken@2753
  1120
    if (_this->MaximizeWindow) {
slouken@2753
  1121
        _this->MaximizeWindow(_this, window);
slouken@2753
  1122
    }
slouken@1895
  1123
}
slouken@1895
  1124
slouken@1895
  1125
void
slouken@1895
  1126
SDL_MinimizeWindow(SDL_WindowID windowID)
slouken@1895
  1127
{
slouken@2753
  1128
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1129
slouken@2753
  1130
    if (!window || (window->flags & SDL_WINDOW_MINIMIZED)) {
slouken@2753
  1131
        return;
slouken@2753
  1132
    }
slouken@2753
  1133
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@1895
  1134
slouken@2753
  1135
    if (_this->MinimizeWindow) {
slouken@2753
  1136
        _this->MinimizeWindow(_this, window);
slouken@2753
  1137
    }
slouken@1895
  1138
}
slouken@1895
  1139
slouken@1895
  1140
void
slouken@1895
  1141
SDL_RestoreWindow(SDL_WindowID windowID)
slouken@1895
  1142
{
slouken@2753
  1143
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1144
slouken@2753
  1145
    if (!window
slouken@2753
  1146
        || (window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@2753
  1147
        return;
slouken@2753
  1148
    }
slouken@2753
  1149
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@1895
  1150
slouken@2753
  1151
    if (_this->RestoreWindow) {
slouken@2753
  1152
        _this->RestoreWindow(_this, window);
slouken@2753
  1153
    }
slouken@1895
  1154
}
slouken@1895
  1155
slouken@1895
  1156
int
slouken@1895
  1157
SDL_SetWindowFullscreen(SDL_WindowID windowID, int fullscreen)
slouken@1895
  1158
{
slouken@2753
  1159
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1160
slouken@2753
  1161
    if (!window) {
slouken@2753
  1162
        return -1;
slouken@2753
  1163
    }
slouken@2753
  1164
    if (fullscreen) {
slouken@2753
  1165
        fullscreen = SDL_WINDOW_FULLSCREEN;
slouken@2753
  1166
    }
slouken@2753
  1167
    if ((window->flags & SDL_WINDOW_FULLSCREEN) == fullscreen) {
slouken@2753
  1168
        return 0;
slouken@2753
  1169
    }
slouken@2753
  1170
    if (fullscreen) {
slouken@2753
  1171
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@1895
  1172
slouken@2753
  1173
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
  1174
            SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1175
slouken@2753
  1176
            /* Hide any other fullscreen windows */
slouken@2753
  1177
            int i;
slouken@2753
  1178
            for (i = 0; i < display->num_windows; ++i) {
slouken@2753
  1179
                SDL_Window *other = &display->windows[i];
slouken@2753
  1180
                if (other->id != windowID && FULLSCREEN_VISIBLE(other)) {
slouken@2753
  1181
                    SDL_MinimizeWindow(other->id);
slouken@2753
  1182
                }
slouken@2753
  1183
            }
slouken@1895
  1184
slouken@2753
  1185
            SDL_SetDisplayMode(&display->fullscreen_mode);
slouken@2753
  1186
        }
slouken@2753
  1187
    } else {
slouken@2753
  1188
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@1895
  1189
slouken@2753
  1190
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
  1191
            SDL_SetDisplayMode(NULL);
slouken@2753
  1192
        }
slouken@2753
  1193
    }
slouken@2753
  1194
    return 0;
slouken@1895
  1195
}
slouken@1895
  1196
slouken@1895
  1197
void
slouken@1895
  1198
SDL_SetWindowGrab(SDL_WindowID windowID, int mode)
slouken@1895
  1199
{
slouken@2753
  1200
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1201
slouken@2753
  1202
    if (!window || (!!mode == !!(window->flags & SDL_WINDOW_INPUT_GRABBED))) {
slouken@2753
  1203
        return;
slouken@2753
  1204
    }
slouken@2753
  1205
    if (mode) {
slouken@2753
  1206
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1207
    } else {
slouken@2753
  1208
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1209
    }
slouken@1895
  1210
slouken@2753
  1211
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@2753
  1212
        _this->SetWindowGrab(_this, window);
slouken@2753
  1213
    }
slouken@1895
  1214
}
slouken@1895
  1215
slouken@1895
  1216
int
slouken@1895
  1217
SDL_GetWindowGrab(SDL_WindowID windowID)
slouken@1895
  1218
{
slouken@2753
  1219
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1220
slouken@2753
  1221
    if (!window) {
slouken@2753
  1222
        return 0;
slouken@2753
  1223
    }
slouken@2753
  1224
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1225
}
slouken@1895
  1226
slouken@1895
  1227
void
slouken@1895
  1228
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1229
{
slouken@1895
  1230
}
slouken@1895
  1231
slouken@1895
  1232
void
slouken@1895
  1233
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1234
{
slouken@1895
  1235
}
slouken@1895
  1236
slouken@1895
  1237
void
slouken@1970
  1238
SDL_OnWindowResized(SDL_Window * window)
slouken@1970
  1239
{
slouken@2753
  1240
    SDL_Renderer *renderer = window->renderer;
slouken@1970
  1241
slouken@2753
  1242
    if (renderer && renderer->DisplayModeChanged) {
slouken@2753
  1243
        renderer->DisplayModeChanged(renderer);
slouken@2753
  1244
    }
slouken@1970
  1245
}
slouken@1970
  1246
slouken@1970
  1247
void
slouken@1895
  1248
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  1249
{
slouken@2753
  1250
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1251
slouken@2753
  1252
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
  1253
        SDL_SetDisplayMode(&display->fullscreen_mode);
slouken@2753
  1254
    }
slouken@2753
  1255
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@2753
  1256
        _this->SetDisplayGammaRamp(_this, display->gamma);
slouken@2753
  1257
    }
slouken@2753
  1258
    if ((window->flags & SDL_WINDOW_INPUT_GRABBED) && _this->SetWindowGrab) {
slouken@2753
  1259
        _this->SetWindowGrab(_this, window);
slouken@2753
  1260
    }
slouken@1895
  1261
}
slouken@1895
  1262
slouken@1895
  1263
void
slouken@1895
  1264
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1265
{
slouken@2753
  1266
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1267
slouken@2753
  1268
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
  1269
        SDL_MinimizeWindow(window->id);
slouken@2753
  1270
        SDL_SetDisplayMode(NULL);
slouken@2753
  1271
    }
slouken@2753
  1272
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@2753
  1273
        _this->SetDisplayGammaRamp(_this, display->saved_gamma);
slouken@2753
  1274
    }
slouken@2753
  1275
    if ((window->flags & SDL_WINDOW_INPUT_GRABBED) && _this->SetWindowGrab) {
slouken@2753
  1276
        _this->SetWindowGrab(_this, window);
slouken@2753
  1277
    }
slouken@1895
  1278
}
slouken@1895
  1279
slouken@1895
  1280
SDL_WindowID
slouken@1895
  1281
SDL_GetFocusWindow(void)
slouken@1895
  1282
{
slouken@2753
  1283
    SDL_VideoDisplay *display;
slouken@2753
  1284
    int i;
slouken@1895
  1285
slouken@2753
  1286
    if (!_this) {
slouken@2753
  1287
        return 0;
slouken@2753
  1288
    }
slouken@2753
  1289
    display = &SDL_CurrentDisplay;
slouken@2753
  1290
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
  1291
        SDL_Window *window = &display->windows[i];
slouken@1895
  1292
slouken@2753
  1293
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@2753
  1294
            return window->id;
slouken@2753
  1295
        }
slouken@2753
  1296
    }
slouken@2753
  1297
    return 0;
slouken@1895
  1298
}
slouken@1895
  1299
slouken@1895
  1300
void
slouken@1895
  1301
SDL_DestroyWindow(SDL_WindowID windowID)
slouken@1895
  1302
{
slouken@2753
  1303
    int i, j;
slouken@1895
  1304
slouken@2753
  1305
    if (!_this) {
slouken@2753
  1306
        return;
slouken@2753
  1307
    }
slouken@2753
  1308
    /* Restore video mode, etc. */
slouken@2753
  1309
    SDL_SendWindowEvent(windowID, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@1895
  1310
slouken@2753
  1311
    for (i = 0; i < _this->num_displays; ++i) {
slouken@2753
  1312
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  1313
        for (j = 0; j < display->num_windows; ++j) {
slouken@2753
  1314
            SDL_Window *window = &display->windows[j];
slouken@2753
  1315
            if (window->id != windowID) {
slouken@2753
  1316
                continue;
slouken@2753
  1317
            }
slouken@2753
  1318
            if (window->title) {
slouken@2753
  1319
                SDL_free(window->title);
slouken@2753
  1320
                window->title = NULL;
slouken@2753
  1321
            }
slouken@2753
  1322
            if (window->renderer) {
slouken@2753
  1323
                SDL_DestroyRenderer(window->id);
slouken@2753
  1324
                window->renderer = NULL;
slouken@2753
  1325
            }
slouken@2753
  1326
            if (_this->DestroyWindow) {
slouken@2753
  1327
                _this->DestroyWindow(_this, window);
slouken@2753
  1328
            }
slouken@2753
  1329
            if (j != display->num_windows - 1) {
slouken@2753
  1330
                SDL_memcpy(&display->windows[i],
slouken@2753
  1331
                           &display->windows[i + 1],
slouken@2753
  1332
                           (display->num_windows - i - 1) * sizeof(*window));
slouken@2753
  1333
            }
slouken@2753
  1334
            --display->num_windows;
slouken@2753
  1335
            return;
slouken@2753
  1336
        }
slouken@2753
  1337
    }
slouken@1895
  1338
}
slouken@1895
  1339
slouken@1895
  1340
void
slouken@1895
  1341
SDL_AddRenderDriver(int displayIndex, const SDL_RenderDriver * driver)
slouken@1895
  1342
{
slouken@2753
  1343
    SDL_VideoDisplay *display;
slouken@2753
  1344
    SDL_RenderDriver *render_drivers;
slouken@1895
  1345
slouken@2753
  1346
    if (displayIndex >= _this->num_displays) {
slouken@2753
  1347
        return;
slouken@2753
  1348
    }
slouken@2753
  1349
    display = &_this->displays[displayIndex];
slouken@2119
  1350
slouken@2753
  1351
    render_drivers =
slouken@2753
  1352
        SDL_realloc(display->render_drivers,
slouken@2753
  1353
                    (display->num_render_drivers +
slouken@2753
  1354
                     1) * sizeof(*render_drivers));
slouken@2753
  1355
    if (render_drivers) {
slouken@2753
  1356
        render_drivers[display->num_render_drivers] = *driver;
slouken@2753
  1357
        display->render_drivers = render_drivers;
slouken@2753
  1358
        display->num_render_drivers++;
slouken@2753
  1359
    }
slouken@1895
  1360
}
slouken@1895
  1361
slouken@1895
  1362
int
slouken@1969
  1363
SDL_GetNumRenderDrivers(void)
slouken@1895
  1364
{
slouken@2753
  1365
    if (_this) {
slouken@2753
  1366
        return SDL_CurrentDisplay.num_render_drivers;
slouken@2753
  1367
    }
slouken@2753
  1368
    return 0;
slouken@1895
  1369
}
slouken@1895
  1370
slouken@1895
  1371
int
slouken@1969
  1372
SDL_GetRenderDriverInfo(int index, SDL_RendererInfo * info)
slouken@1895
  1373
{
slouken@2753
  1374
    if (!_this) {
slouken@2753
  1375
        SDL_UninitializedVideo();
slouken@2753
  1376
        return -1;
slouken@2753
  1377
    }
slouken@2753
  1378
    if (index < 0 || index >= SDL_GetNumRenderDrivers()) {
slouken@2753
  1379
        SDL_SetError("index must be in the range of 0 - %d",
slouken@2753
  1380
                     SDL_GetNumRenderDrivers() - 1);
slouken@2753
  1381
        return -1;
slouken@2753
  1382
    }
slouken@2753
  1383
    *info = SDL_CurrentDisplay.render_drivers[index].info;
slouken@2753
  1384
    return 0;
slouken@1895
  1385
}
slouken@1895
  1386
slouken@1895
  1387
int
slouken@1895
  1388
SDL_CreateRenderer(SDL_WindowID windowID, int index, Uint32 flags)
slouken@1895
  1389
{
slouken@2753
  1390
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1391
slouken@2753
  1392
    if (!window) {
slouken@2753
  1393
        return 0;
slouken@2753
  1394
    }
slouken@2753
  1395
    if (index < 0) {
slouken@2753
  1396
        const char *override = SDL_getenv("SDL_VIDEO_RENDERER");
slouken@2753
  1397
        int n = SDL_GetNumRenderDrivers();
slouken@2753
  1398
        for (index = 0; index < n; ++index) {
slouken@2753
  1399
            SDL_RenderDriver *driver =
slouken@2753
  1400
                &SDL_CurrentDisplay.render_drivers[index];
slouken@1895
  1401
slouken@2753
  1402
            if (override) {
slouken@2753
  1403
                if (SDL_strcasecmp(override, driver->info.name) == 0) {
slouken@2753
  1404
                    break;
slouken@2753
  1405
                }
slouken@2753
  1406
            } else {
slouken@2753
  1407
                if ((driver->info.flags & flags) == flags) {
slouken@2753
  1408
                    break;
slouken@2753
  1409
                }
slouken@2753
  1410
            }
slouken@2753
  1411
        }
slouken@2753
  1412
        if (index == n) {
slouken@2753
  1413
            SDL_SetError("Couldn't find matching render driver");
slouken@2753
  1414
            return -1;
slouken@2753
  1415
        }
slouken@2753
  1416
    }
slouken@2753
  1417
    if (index >= SDL_GetNumRenderDrivers()) {
slouken@2753
  1418
        SDL_SetError("index must be -1 or in the range of 0 - %d",
slouken@2753
  1419
                     SDL_GetNumRenderDrivers() - 1);
slouken@2753
  1420
        return -1;
slouken@2753
  1421
    }
slouken@2753
  1422
    /* Free any existing renderer */
slouken@2753
  1423
    SDL_DestroyRenderer(windowID);
slouken@1895
  1424
slouken@2753
  1425
    /* Create a new renderer instance */
slouken@2753
  1426
    window->renderer = SDL_CurrentDisplay.render_drivers[index]
slouken@2753
  1427
        .CreateRenderer(window, flags);
slouken@2753
  1428
    SDL_SelectRenderer(window->id);
slouken@1895
  1429
slouken@2753
  1430
    return 0;
slouken@1895
  1431
}
slouken@1895
  1432
slouken@1895
  1433
int
slouken@1895
  1434
SDL_SelectRenderer(SDL_WindowID windowID)
slouken@1895
  1435
{
slouken@2753
  1436
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  1437
    SDL_Renderer *renderer;
slouken@1895
  1438
slouken@2753
  1439
    if (!window || !window->renderer) {
slouken@2753
  1440
        return -1;
slouken@2753
  1441
    }
slouken@2753
  1442
    renderer = window->renderer;
slouken@2753
  1443
    if (renderer && renderer->ActivateRenderer) {
slouken@2753
  1444
        if (renderer->ActivateRenderer(renderer) < 0) {
slouken@2753
  1445
            return -1;
slouken@2753
  1446
        }
slouken@2753
  1447
    }
slouken@2753
  1448
    SDL_CurrentDisplay.current_renderer = renderer;
slouken@2753
  1449
    return 0;
slouken@1895
  1450
}
slouken@1895
  1451
slouken@1969
  1452
int
slouken@1969
  1453
SDL_GetRendererInfo(SDL_RendererInfo * info)
slouken@1969
  1454
{
slouken@2753
  1455
    if (!_this) {
slouken@2753
  1456
        SDL_UninitializedVideo();
slouken@2753
  1457
        return -1;
slouken@2753
  1458
    }
slouken@2753
  1459
    if (!SDL_CurrentDisplay.current_renderer) {
slouken@2753
  1460
        SDL_SetError("There is no current renderer");
slouken@2753
  1461
        return -1;
slouken@2753
  1462
    }
slouken@2753
  1463
    *info = SDL_CurrentDisplay.current_renderer->info;
slouken@2753
  1464
    return 0;
slouken@1969
  1465
}
slouken@1969
  1466
slouken@1895
  1467
SDL_TextureID
slouken@1895
  1468
SDL_CreateTexture(Uint32 format, int access, int w, int h)
slouken@1895
  1469
{
slouken@2753
  1470
    int hash;
slouken@2753
  1471
    SDL_Renderer *renderer;
slouken@2753
  1472
    SDL_Texture *texture;
slouken@1895
  1473
slouken@2753
  1474
    if (!_this) {
slouken@2753
  1475
        SDL_UninitializedVideo();
slouken@2753
  1476
        return 0;
slouken@2753
  1477
    }
slouken@2753
  1478
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  1479
    if (!renderer) {
slouken@2810
  1480
        return 0;
slouken@2810
  1481
    }
slouken@2810
  1482
    if (!renderer->CreateTexture) {
slouken@2810
  1483
        SDL_Unsupported();
slouken@2753
  1484
        return 0;
slouken@2753
  1485
    }
slouken@2753
  1486
    texture = (SDL_Texture *) SDL_calloc(1, sizeof(*texture));
slouken@2753
  1487
    if (!texture) {
slouken@2753
  1488
        SDL_OutOfMemory();
slouken@2753
  1489
        return 0;
slouken@2753
  1490
    }
slouken@2753
  1491
    texture->id = _this->next_object_id++;
slouken@2753
  1492
    texture->format = format;
slouken@2753
  1493
    texture->access = access;
slouken@2753
  1494
    texture->w = w;
slouken@2753
  1495
    texture->h = h;
slouken@2753
  1496
    texture->r = 255;
slouken@2753
  1497
    texture->g = 255;
slouken@2753
  1498
    texture->b = 255;
slouken@2753
  1499
    texture->a = 255;
slouken@2753
  1500
    texture->renderer = renderer;
slouken@1895
  1501
slouken@2753
  1502
    if (renderer->CreateTexture(renderer, texture) < 0) {
slouken@2753
  1503
        if (renderer->DestroyTexture) {
slouken@2753
  1504
            renderer->DestroyTexture(renderer, texture);
slouken@2753
  1505
        }
slouken@2753
  1506
        SDL_free(texture);
slouken@2753
  1507
        return 0;
slouken@2753
  1508
    }
slouken@2753
  1509
    hash = (texture->id % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  1510
    texture->next = SDL_CurrentDisplay.textures[hash];
slouken@2753
  1511
    SDL_CurrentDisplay.textures[hash] = texture;
slouken@1895
  1512
slouken@2753
  1513
    return texture->id;
slouken@1895
  1514
}
slouken@1895
  1515
slouken@1895
  1516
SDL_TextureID
slouken@2222
  1517
SDL_CreateTextureFromSurface(Uint32 format, SDL_Surface * surface)
slouken@1895
  1518
{
slouken@2753
  1519
    SDL_TextureID textureID;
slouken@2753
  1520
    SDL_PixelFormat *fmt;
slouken@2753
  1521
    int bpp;
slouken@2753
  1522
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@1895
  1523
slouken@2753
  1524
    if (!surface) {
slouken@2753
  1525
        SDL_SetError("SDL_CreateTextureFromSurface() passed NULL surface");
slouken@2753
  1526
        return 0;
slouken@2753
  1527
    }
slouken@2753
  1528
    fmt = surface->format;
slouken@1895
  1529
slouken@2753
  1530
    if (format) {
slouken@2753
  1531
        if (!SDL_PixelFormatEnumToMasks
slouken@2753
  1532
            (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@2753
  1533
            SDL_SetError("Unknown pixel format");
slouken@2753
  1534
            return 0;
slouken@2753
  1535
        }
slouken@2753
  1536
    } else {
slouken@2753
  1537
        if (surface->format->Amask
slouken@2753
  1538
            || !(surface->map->info.flags &
slouken@2753
  1539
                 (SDL_COPY_COLORKEY | SDL_COPY_MASK | SDL_COPY_BLEND))) {
slouken@2753
  1540
            bpp = fmt->BitsPerPixel;
slouken@2753
  1541
            Rmask = fmt->Rmask;
slouken@2753
  1542
            Gmask = fmt->Gmask;
slouken@2753
  1543
            Bmask = fmt->Bmask;
slouken@2753
  1544
            Amask = fmt->Amask;
slouken@2753
  1545
        } else {
slouken@2753
  1546
            /* Need a format with alpha */
slouken@2753
  1547
            bpp = 32;
slouken@2753
  1548
            Rmask = 0x00FF0000;
slouken@2753
  1549
            Gmask = 0x0000FF00;
slouken@2753
  1550
            Bmask = 0x000000FF;
slouken@2753
  1551
            Amask = 0xFF000000;
slouken@2753
  1552
        }
slouken@2753
  1553
        format = SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
slouken@2753
  1554
        if (!format) {
slouken@2753
  1555
            SDL_SetError("Unknown pixel format");
slouken@2753
  1556
            return 0;
slouken@2753
  1557
        }
slouken@2753
  1558
    }
slouken@1895
  1559
slouken@2753
  1560
    textureID =
slouken@2753
  1561
        SDL_CreateTexture(format, SDL_TEXTUREACCESS_STATIC, surface->w,
slouken@2753
  1562
                          surface->h);
slouken@2753
  1563
    if (!textureID) {
slouken@2753
  1564
        return 0;
slouken@2753
  1565
    }
slouken@2753
  1566
    if (bpp == fmt->BitsPerPixel && Rmask == fmt->Rmask && Gmask == fmt->Gmask
slouken@2753
  1567
        && Bmask == fmt->Bmask && Amask == fmt->Amask) {
slouken@2753
  1568
        if (SDL_MUSTLOCK(surface)) {
slouken@2753
  1569
            if (SDL_LockSurface(surface) < 0) {
slouken@2753
  1570
                SDL_DestroyTexture(textureID);
slouken@2753
  1571
                return 0;
slouken@2753
  1572
            }
slouken@2753
  1573
            SDL_UpdateTexture(textureID, NULL, surface->pixels,
slouken@2753
  1574
                              surface->pitch);
slouken@2753
  1575
            SDL_UnlockSurface(surface);
slouken@2753
  1576
        } else {
slouken@2753
  1577
            SDL_UpdateTexture(textureID, NULL, surface->pixels,
slouken@2753
  1578
                              surface->pitch);
slouken@2753
  1579
        }
slouken@2753
  1580
    } else {
slouken@2753
  1581
        SDL_PixelFormat *dst_fmt;
slouken@2753
  1582
        SDL_Surface *dst = NULL;
slouken@1895
  1583
slouken@2753
  1584
        /* Set up a destination surface for the texture update */
slouken@2753
  1585
        dst_fmt = SDL_AllocFormat(bpp, Rmask, Gmask, Bmask, Amask);
slouken@2753
  1586
        if (dst_fmt) {
slouken@2753
  1587
            if (SDL_ISPIXELFORMAT_INDEXED(format)) {
slouken@2753
  1588
                dst_fmt->palette =
slouken@2753
  1589
                    SDL_AllocPalette((1 << SDL_BITSPERPIXEL(format)));
slouken@2753
  1590
                if (dst_fmt->palette) {
slouken@2753
  1591
                    /*
slouken@2753
  1592
                     * FIXME: Should we try to copy
slouken@2753
  1593
                     * fmt->palette?
slouken@2753
  1594
                     */
slouken@2753
  1595
                    SDL_DitherColors(dst_fmt->palette->colors,
slouken@2753
  1596
                                     SDL_BITSPERPIXEL(format));
slouken@2753
  1597
                }
slouken@2753
  1598
            }
slouken@2753
  1599
            dst = SDL_ConvertSurface(surface, dst_fmt, 0);
slouken@2753
  1600
            if (dst) {
slouken@2753
  1601
                SDL_UpdateTexture(textureID, NULL, dst->pixels, dst->pitch);
slouken@2753
  1602
                SDL_FreeSurface(dst);
slouken@2753
  1603
            }
slouken@2753
  1604
            if (dst_fmt->palette) {
slouken@2753
  1605
                SDL_FreePalette(dst_fmt->palette);
slouken@2753
  1606
            }
slouken@2753
  1607
            SDL_FreeFormat(dst_fmt);
slouken@2753
  1608
        }
slouken@2753
  1609
        if (!dst) {
slouken@2753
  1610
            SDL_DestroyTexture(textureID);
slouken@2753
  1611
            return 0;
slouken@2753
  1612
        }
slouken@2753
  1613
    }
slouken@2222
  1614
slouken@2753
  1615
    if (SDL_ISPIXELFORMAT_INDEXED(format) && fmt->palette) {
slouken@2753
  1616
        SDL_SetTexturePalette(textureID, fmt->palette->colors, 0,
slouken@2753
  1617
                              fmt->palette->ncolors);
slouken@2753
  1618
    }
slouken@2753
  1619
    return textureID;
slouken@1895
  1620
}
slouken@1895
  1621
slouken@1895
  1622
static __inline__ SDL_Texture *
slouken@1895
  1623
SDL_GetTextureFromID(SDL_TextureID textureID)
slouken@1895
  1624
{
slouken@2753
  1625
    int hash;
slouken@2753
  1626
    SDL_Texture *texture;
slouken@1895
  1627
slouken@2753
  1628
    if (!_this) {
slouken@2753
  1629
        return NULL;
slouken@2753
  1630
    }
slouken@2753
  1631
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  1632
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@2753
  1633
         texture = texture->next) {
slouken@2753
  1634
        if (texture->id == textureID) {
slouken@2753
  1635
            return texture;
slouken@2753
  1636
        }
slouken@2753
  1637
    }
slouken@2753
  1638
    return NULL;
slouken@1895
  1639
}
slouken@1895
  1640
slouken@1895
  1641
int
slouken@1895
  1642
SDL_QueryTexture(SDL_TextureID textureID, Uint32 * format, int *access,
slouken@2753
  1643
                 int *w, int *h)
slouken@1895
  1644
{
slouken@2753
  1645
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1646
slouken@2753
  1647
    if (!texture) {
slouken@2753
  1648
        return -1;
slouken@2753
  1649
    }
slouken@2753
  1650
    if (format) {
slouken@2753
  1651
        *format = texture->format;
slouken@2753
  1652
    }
slouken@2753
  1653
    if (access) {
slouken@2753
  1654
        *access = texture->access;
slouken@2753
  1655
    }
slouken@2753
  1656
    if (w) {
slouken@2753
  1657
        *w = texture->w;
slouken@2753
  1658
    }
slouken@2753
  1659
    if (h) {
slouken@2753
  1660
        *h = texture->h;
slouken@2753
  1661
    }
slouken@2753
  1662
    return 0;
slouken@1895
  1663
}
slouken@1895
  1664
slouken@1895
  1665
int
slouken@1895
  1666
SDL_QueryTexturePixels(SDL_TextureID textureID, void **pixels, int *pitch)
slouken@1895
  1667
{
slouken@2753
  1668
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1669
    SDL_Renderer *renderer;
slouken@1895
  1670
slouken@2753
  1671
    if (!texture) {
slouken@2753
  1672
        return -1;
slouken@2753
  1673
    }
slouken@2753
  1674
    renderer = texture->renderer;
slouken@2753
  1675
    if (!renderer->QueryTexturePixels) {
slouken@2810
  1676
        SDL_Unsupported();
slouken@2753
  1677
        return -1;
slouken@2753
  1678
    }
slouken@2753
  1679
    return renderer->QueryTexturePixels(renderer, texture, pixels, pitch);
slouken@1895
  1680
}
slouken@1895
  1681
slouken@1895
  1682
int
slouken@1895
  1683
SDL_SetTexturePalette(SDL_TextureID textureID, const SDL_Color * colors,
slouken@2753
  1684
                      int firstcolor, int ncolors)
slouken@1895
  1685
{
slouken@2753
  1686
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1687
    SDL_Renderer *renderer;
slouken@1895
  1688
slouken@2753
  1689
    if (!texture) {
slouken@2753
  1690
        return -1;
slouken@2753
  1691
    }
slouken@2753
  1692
    renderer = texture->renderer;
slouken@2753
  1693
    if (!renderer->SetTexturePalette) {
slouken@2810
  1694
        SDL_Unsupported();
slouken@2753
  1695
        return -1;
slouken@2753
  1696
    }
slouken@2753
  1697
    return renderer->SetTexturePalette(renderer, texture, colors, firstcolor,
slouken@2753
  1698
                                       ncolors);
slouken@1895
  1699
}
slouken@1895
  1700
slouken@1895
  1701
int
slouken@1895
  1702
SDL_GetTexturePalette(SDL_TextureID textureID, SDL_Color * colors,
slouken@2753
  1703
                      int firstcolor, int ncolors)
slouken@1895
  1704
{
slouken@2753
  1705
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1706
    SDL_Renderer *renderer;
slouken@1895
  1707
slouken@2753
  1708
    if (!texture) {
slouken@2753
  1709
        return -1;
slouken@2753
  1710
    }
slouken@2753
  1711
    renderer = texture->renderer;
slouken@2753
  1712
    if (!renderer->GetTexturePalette) {
slouken@2810
  1713
        SDL_Unsupported();
slouken@2753
  1714
        return -1;
slouken@2753
  1715
    }
slouken@2753
  1716
    return renderer->GetTexturePalette(renderer, texture, colors, firstcolor,
slouken@2753
  1717
                                       ncolors);
slouken@1895
  1718
}
slouken@1895
  1719
slouken@1895
  1720
int
slouken@1985
  1721
SDL_SetTextureColorMod(SDL_TextureID textureID, Uint8 r, Uint8 g, Uint8 b)
slouken@1985
  1722
{
slouken@2753
  1723
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1724
    SDL_Renderer *renderer;
slouken@1985
  1725
slouken@2753
  1726
    if (!texture) {
slouken@2753
  1727
        return -1;
slouken@2753
  1728
    }
slouken@2753
  1729
    renderer = texture->renderer;
slouken@2753
  1730
    if (!renderer->SetTextureColorMod) {
slouken@2810
  1731
        SDL_Unsupported();
slouken@2753
  1732
        return -1;
slouken@2753
  1733
    }
slouken@2753
  1734
    if (r < 255 || g < 255 || b < 255) {
slouken@2753
  1735
        texture->modMode |= SDL_TEXTUREMODULATE_COLOR;
slouken@2753
  1736
    } else {
slouken@2753
  1737
        texture->modMode &= ~SDL_TEXTUREMODULATE_COLOR;
slouken@2753
  1738
    }
slouken@2753
  1739
    texture->r = r;
slouken@2753
  1740
    texture->g = g;
slouken@2753
  1741
    texture->b = b;
slouken@2753
  1742
    return renderer->SetTextureColorMod(renderer, texture);
slouken@1985
  1743
}
slouken@1985
  1744
slouken@1985
  1745
int
slouken@1985
  1746
SDL_GetTextureColorMod(SDL_TextureID textureID, Uint8 * r, Uint8 * g,
slouken@2753
  1747
                       Uint8 * b)
slouken@1985
  1748
{
slouken@2753
  1749
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1750
    SDL_Renderer *renderer;
slouken@1985
  1751
slouken@2753
  1752
    if (!texture) {
slouken@2753
  1753
        return -1;
slouken@2753
  1754
    }
slouken@2753
  1755
    renderer = texture->renderer;
slouken@2753
  1756
    if (r) {
slouken@2753
  1757
        *r = texture->r;
slouken@2753
  1758
    }
slouken@2753
  1759
    if (g) {
slouken@2753
  1760
        *g = texture->g;
slouken@2753
  1761
    }
slouken@2753
  1762
    if (b) {
slouken@2753
  1763
        *b = texture->b;
slouken@2753
  1764
    }
slouken@2753
  1765
    return 0;
slouken@1985
  1766
}
slouken@1985
  1767
slouken@1985
  1768
int
slouken@1985
  1769
SDL_SetTextureAlphaMod(SDL_TextureID textureID, Uint8 alpha)
slouken@1985
  1770
{
slouken@2753
  1771
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1772
    SDL_Renderer *renderer;
slouken@1985
  1773
slouken@2753
  1774
    if (!texture) {
slouken@2753
  1775
        return -1;
slouken@2753
  1776
    }
slouken@2753
  1777
    renderer = texture->renderer;
slouken@2753
  1778
    if (!renderer->SetTextureAlphaMod) {
slouken@2810
  1779
        SDL_Unsupported();
slouken@2753
  1780
        return -1;
slouken@2753
  1781
    }
slouken@2753
  1782
    if (alpha < 255) {
slouken@2753
  1783
        texture->modMode |= SDL_TEXTUREMODULATE_ALPHA;
slouken@2753
  1784
    } else {
slouken@2753
  1785
        texture->modMode &= ~SDL_TEXTUREMODULATE_ALPHA;
slouken@2753
  1786
    }
slouken@2753
  1787
    texture->a = alpha;
slouken@2753
  1788
    return renderer->SetTextureAlphaMod(renderer, texture);
slouken@1985
  1789
}
slouken@1985
  1790
slouken@1985
  1791
int
slouken@1985
  1792
SDL_GetTextureAlphaMod(SDL_TextureID textureID, Uint8 * alpha)
slouken@1985
  1793
{
slouken@2753
  1794
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  1795
slouken@2753
  1796
    if (!texture) {
slouken@2753
  1797
        return -1;
slouken@2753
  1798
    }
slouken@2753
  1799
    if (alpha) {
slouken@2753
  1800
        *alpha = texture->a;
slouken@2753
  1801
    }
slouken@2753
  1802
    return 0;
slouken@1985
  1803
}
slouken@1985
  1804
slouken@1985
  1805
int
slouken@1985
  1806
SDL_SetTextureBlendMode(SDL_TextureID textureID, int blendMode)
slouken@1985
  1807
{
slouken@2753
  1808
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1809
    SDL_Renderer *renderer;
slouken@1985
  1810
slouken@2753
  1811
    if (!texture) {
slouken@2753
  1812
        return -1;
slouken@2753
  1813
    }
slouken@2753
  1814
    renderer = texture->renderer;
slouken@2753
  1815
    if (!renderer->SetTextureBlendMode) {
slouken@2810
  1816
        SDL_Unsupported();
slouken@2753
  1817
        return -1;
slouken@2753
  1818
    }
slouken@2753
  1819
    texture->blendMode = blendMode;
slouken@2753
  1820
    return renderer->SetTextureBlendMode(renderer, texture);
slouken@1985
  1821
}
slouken@1985
  1822
slouken@1985
  1823
int
slouken@1985
  1824
SDL_GetTextureBlendMode(SDL_TextureID textureID, int *blendMode)
slouken@1985
  1825
{
slouken@2753
  1826
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  1827
slouken@2753
  1828
    if (!texture) {
slouken@2753
  1829
        return -1;
slouken@2753
  1830
    }
slouken@2753
  1831
    if (blendMode) {
slouken@2753
  1832
        *blendMode = texture->blendMode;
slouken@2753
  1833
    }
slouken@2753
  1834
    return 0;
slouken@1985
  1835
}
slouken@1985
  1836
slouken@1985
  1837
int
slouken@1985
  1838
SDL_SetTextureScaleMode(SDL_TextureID textureID, int scaleMode)
slouken@1985
  1839
{
slouken@2753
  1840
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1841
    SDL_Renderer *renderer;
slouken@1985
  1842
slouken@2753
  1843
    if (!texture) {
slouken@2753
  1844
        return -1;
slouken@2753
  1845
    }
slouken@2753
  1846
    renderer = texture->renderer;
slouken@2753
  1847
    if (!renderer->SetTextureScaleMode) {
slouken@2810
  1848
        SDL_Unsupported();
slouken@2753
  1849
        return -1;
slouken@2753
  1850
    }
slouken@2753
  1851
    texture->scaleMode = scaleMode;
slouken@2753
  1852
    return renderer->SetTextureScaleMode(renderer, texture);
slouken@1985
  1853
}
slouken@1985
  1854
slouken@1985
  1855
int
slouken@1985
  1856
SDL_GetTextureScaleMode(SDL_TextureID textureID, int *scaleMode)
slouken@1985
  1857
{
slouken@2753
  1858
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  1859
slouken@2753
  1860
    if (!texture) {
slouken@2753
  1861
        return -1;
slouken@2753
  1862
    }
slouken@2753
  1863
    if (scaleMode) {
slouken@2753
  1864
        *scaleMode = texture->scaleMode;
slouken@2753
  1865
    }
slouken@2753
  1866
    return 0;
slouken@1985
  1867
}
slouken@1985
  1868
slouken@1985
  1869
int
slouken@1895
  1870
SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect * rect,
slouken@2753
  1871
                  const void *pixels, int pitch)
slouken@1895
  1872
{
slouken@2753
  1873
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1874
    SDL_Renderer *renderer;
slouken@2753
  1875
    SDL_Rect full_rect;
slouken@1895
  1876
slouken@2753
  1877
    if (!texture) {
slouken@2753
  1878
        return -1;
slouken@2753
  1879
    }
slouken@2753
  1880
    renderer = texture->renderer;
slouken@2753
  1881
    if (!renderer->UpdateTexture) {
slouken@2810
  1882
        SDL_Unsupported();
slouken@2753
  1883
        return -1;
slouken@2753
  1884
    }
slouken@2753
  1885
    if (!rect) {
slouken@2753
  1886
        full_rect.x = 0;
slouken@2753
  1887
        full_rect.y = 0;
slouken@2753
  1888
        full_rect.w = texture->w;
slouken@2753
  1889
        full_rect.h = texture->h;
slouken@2753
  1890
        rect = &full_rect;
slouken@2753
  1891
    }
slouken@2753
  1892
    return renderer->UpdateTexture(renderer, texture, rect, pixels, pitch);
slouken@1895
  1893
}
slouken@1895
  1894
slouken@1895
  1895
int
slouken@1895
  1896
SDL_LockTexture(SDL_TextureID textureID, const SDL_Rect * rect, int markDirty,
slouken@2753
  1897
                void **pixels, int *pitch)
slouken@1895
  1898
{
slouken@2753
  1899
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1900
    SDL_Renderer *renderer;
slouken@2753
  1901
    SDL_Rect full_rect;
slouken@1895
  1902
slouken@2753
  1903
    if (!texture) {
slouken@2753
  1904
        return -1;
slouken@2753
  1905
    }
slouken@2753
  1906
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  1907
        SDL_SetError("SDL_LockTexture(): texture must be streaming");
slouken@2753
  1908
        return -1;
slouken@2753
  1909
    }
slouken@2753
  1910
    renderer = texture->renderer;
slouken@2753
  1911
    if (!renderer->LockTexture) {
slouken@2810
  1912
        SDL_Unsupported();
slouken@2753
  1913
        return -1;
slouken@2753
  1914
    }
slouken@2753
  1915
    if (!rect) {
slouken@2753
  1916
        full_rect.x = 0;
slouken@2753
  1917
        full_rect.y = 0;
slouken@2753
  1918
        full_rect.w = texture->w;
slouken@2753
  1919
        full_rect.h = texture->h;
slouken@2753
  1920
        rect = &full_rect;
slouken@2753
  1921
    }
slouken@2753
  1922
    return renderer->LockTexture(renderer, texture, rect, markDirty, pixels,
slouken@2753
  1923
                                 pitch);
slouken@1895
  1924
}
slouken@1895
  1925
slouken@1895
  1926
void
slouken@1895
  1927
SDL_UnlockTexture(SDL_TextureID textureID)
slouken@1895
  1928
{
slouken@2753
  1929
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1930
    SDL_Renderer *renderer;
slouken@1895
  1931
slouken@2753
  1932
    if (!texture) {
slouken@2753
  1933
        return;
slouken@2753
  1934
    }
slouken@2753
  1935
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  1936
        return;
slouken@2753
  1937
    }
slouken@2753
  1938
    renderer = texture->renderer;
slouken@2753
  1939
    if (!renderer->UnlockTexture) {
slouken@2753
  1940
        return;
slouken@2753
  1941
    }
slouken@2753
  1942
    renderer->UnlockTexture(renderer, texture);
slouken@1895
  1943
}
slouken@1895
  1944
slouken@1895
  1945
void
slouken@1895
  1946
SDL_DirtyTexture(SDL_TextureID textureID, int numrects,
slouken@2753
  1947
                 const SDL_Rect * rects)
slouken@1895
  1948
{
slouken@2753
  1949
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1950
    SDL_Renderer *renderer;
slouken@1895
  1951
slouken@2753
  1952
    if (!texture) {
slouken@2753
  1953
        return;
slouken@2753
  1954
    }
slouken@2753
  1955
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  1956
        return;
slouken@2753
  1957
    }
slouken@2753
  1958
    renderer = texture->renderer;
slouken@2753
  1959
    if (!renderer->DirtyTexture) {
slouken@2753
  1960
        return;
slouken@2753
  1961
    }
slouken@2753
  1962
    renderer->DirtyTexture(renderer, texture, numrects, rects);
slouken@1895
  1963
}
slouken@1895
  1964
slouken@1895
  1965
int
slouken@1985
  1966
SDL_RenderFill(Uint8 r, Uint8 g, Uint8 b, Uint8 a, const SDL_Rect * rect)
slouken@1895
  1967
{
slouken@2753
  1968
    SDL_Renderer *renderer;
slouken@2753
  1969
    SDL_Window *window;
slouken@2753
  1970
    SDL_Rect real_rect;
slouken@1895
  1971
slouken@2753
  1972
    if (!_this) {
slouken@2753
  1973
        SDL_UninitializedVideo();
slouken@2753
  1974
        return -1;
slouken@2753
  1975
    }
slouken@2753
  1976
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  1977
    if (!renderer) {
slouken@2810
  1978
        return -1;
slouken@2810
  1979
    }
slouken@2814
  1980
    if (!renderer->RenderFill) {
slouken@2810
  1981
        SDL_Unsupported();
slouken@2753
  1982
        return -1;
slouken@2753
  1983
    }
slouken@2753
  1984
    window = SDL_GetWindowFromID(renderer->window);
slouken@2753
  1985
    real_rect.x = 0;
slouken@2753
  1986
    real_rect.y = 0;
slouken@2753
  1987
    real_rect.w = window->w;
slouken@2753
  1988
    real_rect.h = window->h;
slouken@2753
  1989
    if (rect) {
slouken@2753
  1990
        if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
slouken@2753
  1991
            return 0;
slouken@2753
  1992
        }
slouken@2753
  1993
    }
slouken@2753
  1994
    return renderer->RenderFill(renderer, r, g, b, a, &real_rect);
slouken@1895
  1995
}
slouken@1895
  1996
slouken@1895
  1997
int
slouken@1895
  1998
SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect * srcrect,
slouken@2753
  1999
               const SDL_Rect * dstrect)
slouken@1895
  2000
{
slouken@2753
  2001
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2002
    SDL_Renderer *renderer;
slouken@2753
  2003
    SDL_Window *window;
slouken@2753
  2004
    SDL_Rect real_srcrect;
slouken@2753
  2005
    SDL_Rect real_dstrect;
slouken@1895
  2006
slouken@2753
  2007
    if (!texture || texture->renderer != SDL_CurrentDisplay.current_renderer) {
slouken@2753
  2008
        return -1;
slouken@2753
  2009
    }
slouken@2753
  2010
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  2011
    if (!renderer) {
slouken@2810
  2012
        return -1;
slouken@2810
  2013
    }
slouken@2810
  2014
    if (!renderer->RenderCopy) {
slouken@2810
  2015
        SDL_Unsupported();
slouken@2753
  2016
        return -1;
slouken@2753
  2017
    }
slouken@2753
  2018
    window = SDL_GetWindowFromID(renderer->window);
slouken@2753
  2019
    if (srcrect) {
slouken@2753
  2020
        real_srcrect = *srcrect;
slouken@2753
  2021
    } else {
slouken@2753
  2022
        real_srcrect.x = 0;
slouken@2753
  2023
        real_srcrect.y = 0;
slouken@2753
  2024
        real_srcrect.w = texture->w;
slouken@2753
  2025
        real_srcrect.h = texture->h;
slouken@2753
  2026
    }
slouken@2753
  2027
    if (dstrect) {
slouken@2753
  2028
        real_dstrect = *dstrect;
slouken@2753
  2029
    } else {
slouken@2753
  2030
        real_dstrect.x = 0;
slouken@2753
  2031
        real_dstrect.y = 0;
slouken@2753
  2032
        real_dstrect.w = window->w;
slouken@2753
  2033
        real_dstrect.h = window->h;
slouken@2753
  2034
    }
slouken@1895
  2035
slouken@2753
  2036
    return renderer->RenderCopy(renderer, texture, &real_srcrect,
slouken@2753
  2037
                                &real_dstrect);
slouken@1895
  2038
}
slouken@1895
  2039
slouken@1895
  2040
void
slouken@1895
  2041
SDL_RenderPresent(void)
slouken@1895
  2042
{
slouken@2753
  2043
    SDL_Renderer *renderer;
slouken@1895
  2044
slouken@2753
  2045
    if (!_this) {
slouken@2753
  2046
        SDL_UninitializedVideo();
slouken@2753
  2047
        return;
slouken@2753
  2048
    }
slouken@2753
  2049
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2753
  2050
    if (!renderer || !renderer->RenderPresent) {
slouken@2753
  2051
        return;
slouken@2753
  2052
    }
slouken@2753
  2053
    renderer->RenderPresent(renderer);
slouken@1895
  2054
}
slouken@1895
  2055
slouken@1895
  2056
void
slouken@1895
  2057
SDL_DestroyTexture(SDL_TextureID textureID)
slouken@1895
  2058
{
slouken@2753
  2059
    int hash;
slouken@2753
  2060
    SDL_Texture *prev, *texture;
slouken@2753
  2061
    SDL_Renderer *renderer;
slouken@1895
  2062
slouken@2753
  2063
    if (!_this) {
slouken@2753
  2064
        SDL_UninitializedVideo();
slouken@2753
  2065
        return;
slouken@2753
  2066
    }
slouken@2753
  2067
    /* Look up the texture in the hash table */
slouken@2753
  2068
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  2069
    prev = NULL;
slouken@2753
  2070
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@2753
  2071
         prev = texture, texture = texture->next) {
slouken@2753
  2072
        if (texture->id == textureID) {
slouken@2753
  2073
            break;
slouken@2753
  2074
        }
slouken@2753
  2075
    }
slouken@2753
  2076
    if (!texture) {
slouken@2753
  2077
        return;
slouken@2753
  2078
    }
slouken@2753
  2079
    /* Unlink the texture from the list */
slouken@2753
  2080
    if (prev) {
slouken@2753
  2081
        prev->next = texture->next;
slouken@2753
  2082
    } else {
slouken@2753
  2083
        SDL_CurrentDisplay.textures[hash] = texture->next;
slouken@2753
  2084
    }
slouken@1895
  2085
slouken@2753
  2086
    /* Free the texture */
slouken@2753
  2087
    renderer = texture->renderer;
slouken@2753
  2088
    renderer->DestroyTexture(renderer, texture);
slouken@2753
  2089
    SDL_free(texture);
slouken@1895
  2090
}
slouken@1895
  2091
slouken@1895
  2092
void
slouken@1895
  2093
SDL_DestroyRenderer(SDL_WindowID windowID)
slouken@1895
  2094
{
slouken@2753
  2095
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  2096
    SDL_Renderer *renderer;
slouken@2753
  2097
    int i;
slouken@1895
  2098
slouken@2753
  2099
    if (!window) {
slouken@2753
  2100
        return;
slouken@2753
  2101
    }
slouken@2753
  2102
    renderer = window->renderer;
slouken@2753
  2103
    if (!renderer) {
slouken@2753
  2104
        return;
slouken@2753
  2105
    }
slouken@2753
  2106
    /* Free existing textures for this renderer */
slouken@2753
  2107
    for (i = 0; i < SDL_arraysize(SDL_CurrentDisplay.textures); ++i) {
slouken@2753
  2108
        SDL_Texture *texture;
slouken@2753
  2109
        SDL_Texture *prev = NULL;
slouken@2753
  2110
        SDL_Texture *next;
slouken@2753
  2111
        for (texture = SDL_CurrentDisplay.textures[i]; texture;
slouken@2753
  2112
             texture = next) {
slouken@2753
  2113
            next = texture->next;
slouken@2753
  2114
            if (texture->renderer == renderer) {
slouken@2753
  2115
                if (prev) {
slouken@2753
  2116
                    prev->next = next;
slouken@2753
  2117
                } else {
slouken@2753
  2118
                    SDL_CurrentDisplay.textures[i] = next;
slouken@2753
  2119
                }
slouken@2753
  2120
                renderer->DestroyTexture(renderer, texture);
slouken@2753
  2121
                SDL_free(texture);
slouken@2753
  2122
            } else {
slouken@2753
  2123
                prev = texture;
slouken@2753
  2124
            }
slouken@2753
  2125
        }
slouken@2753
  2126
    }
slouken@1895
  2127
slouken@2753
  2128
    /* Free the renderer instance */
slouken@2753
  2129
    renderer->DestroyRenderer(renderer);
slouken@1895
  2130
slouken@2753
  2131
    /* Clear references */
slouken@2753
  2132
    window->renderer = NULL;
slouken@2753
  2133
    if (SDL_CurrentDisplay.current_renderer == renderer) {
slouken@2753
  2134
        SDL_CurrentDisplay.current_renderer = NULL;
slouken@2753
  2135
    }
slouken@1895
  2136
}
slouken@1895
  2137
slouken@1895
  2138
void
slouken@1895
  2139
SDL_VideoQuit(void)
slouken@1895
  2140
{
slouken@2753
  2141
    int i, j;
slouken@1895
  2142
slouken@2753
  2143
    if (!_this) {
slouken@2753
  2144
        return;
slouken@2753
  2145
    }
slouken@2753
  2146
    /* Halt event processing before doing anything else */
slouken@2753
  2147
    SDL_StopEventLoop();
slouken@1895
  2148
slouken@2753
  2149
    /* Clean up the system video */
slouken@2753
  2150
    for (i = _this->num_displays; i--;) {
slouken@2753
  2151
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2152
        for (j = display->num_windows; j--;) {
slouken@2753
  2153
            SDL_DestroyWindow(display->windows[i].id);
slouken@2753
  2154
        }
slouken@2753
  2155
        if (display->windows) {
slouken@2753
  2156
            SDL_free(display->windows);
slouken@2753
  2157
            display->windows = NULL;
slouken@2753
  2158
        }
slouken@2753
  2159
        display->num_windows = 0;
slouken@2753
  2160
        if (display->render_drivers) {
slouken@2753
  2161
            SDL_free(display->render_drivers);
slouken@2753
  2162
            display->render_drivers = NULL;
slouken@2753
  2163
        }
slouken@2753
  2164
        display->num_render_drivers = 0;
slouken@2753
  2165
    }
slouken@2753
  2166
    _this->VideoQuit(_this);
slouken@1895
  2167
slouken@2753
  2168
    for (i = _this->num_displays; i--;) {
slouken@2753
  2169
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2170
        for (j = display->num_display_modes; j--;) {
slouken@2753
  2171
            if (display->display_modes[j].driverdata) {
slouken@2753
  2172
                SDL_free(display->display_modes[j].driverdata);
slouken@2753
  2173
                display->display_modes[j].driverdata = NULL;
slouken@2753
  2174
            }
slouken@2753
  2175
        }
slouken@2753
  2176
        if (display->display_modes) {
slouken@2753
  2177
            SDL_free(display->display_modes);
slouken@2753
  2178
            display->display_modes = NULL;
slouken@2753
  2179
        }
slouken@2753
  2180
        if (display->desktop_mode.driverdata) {
slouken@2753
  2181
            SDL_free(display->desktop_mode.driverdata);
slouken@2753
  2182
            display->desktop_mode.driverdata = NULL;
slouken@2753
  2183
        }
slouken@2753
  2184
        if (display->palette) {
slouken@2753
  2185
            SDL_FreePalette(display->palette);
slouken@2753
  2186
            display->palette = NULL;
slouken@2753
  2187
        }
slouken@2753
  2188
        if (display->gamma) {
slouken@2753
  2189
            SDL_free(display->gamma);
slouken@2753
  2190
            display->gamma = NULL;
slouken@2753
  2191
        }
slouken@2753
  2192
        if (display->driverdata) {
slouken@2753
  2193
            SDL_free(display->driverdata);
slouken@2753
  2194
            display->driverdata = NULL;
slouken@2753
  2195
        }
slouken@2753
  2196
    }
slouken@2753
  2197
    if (_this->displays) {
slouken@2753
  2198
        SDL_free(_this->displays);
slouken@2753
  2199
        _this->displays = NULL;
slouken@2753
  2200
    }
slouken@2753
  2201
    _this->free(_this);
slouken@2753
  2202
    _this = NULL;
slouken@0
  2203
}
slouken@0
  2204
slouken@1895
  2205
int
slouken@1895
  2206
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2207
{
slouken@2753
  2208
    int retval;
slouken@0
  2209
slouken@2753
  2210
    if (!_this) {
slouken@2753
  2211
        SDL_UninitializedVideo();
slouken@2753
  2212
        return -1;
slouken@2753
  2213
    }
slouken@2753
  2214
    if (_this->GL_LoadLibrary) {
slouken@2753
  2215
        retval = _this->GL_LoadLibrary(_this, path);
slouken@2753
  2216
    } else {
slouken@2753
  2217
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2218
        retval = -1;
slouken@2753
  2219
    }
slouken@2753
  2220
    return (retval);
slouken@0
  2221
}
slouken@0
  2222
slouken@2753
  2223
void *
slouken@1895
  2224
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2225
{
slouken@2753
  2226
    void *func;
slouken@0
  2227
slouken@2753
  2228
    if (!_this) {
slouken@2753
  2229
        SDL_UninitializedVideo();
slouken@2753
  2230
        return NULL;
slouken@2753
  2231
    }
slouken@2753
  2232
    func = NULL;
slouken@2753
  2233
    if (_this->GL_GetProcAddress) {
slouken@2753
  2234
        if (_this->gl_config.driver_loaded) {
slouken@2753
  2235
            func = _this->GL_GetProcAddress(_this, proc);
slouken@2753
  2236
        } else {
slouken@2753
  2237
            SDL_SetError("No GL driver has been loaded");
slouken@2753
  2238
        }
slouken@2753
  2239
    } else {
slouken@2753
  2240
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2241
    }
slouken@2753
  2242
    return func;
slouken@0
  2243
}
slouken@0
  2244
slouken@1926
  2245
SDL_bool
slouken@1926
  2246
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2247
{
hfutrell@2745
  2248
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2249
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@2753
  2250
    const char *extensions;
slouken@2753
  2251
    const char *start;
slouken@2753
  2252
    const char *where, *terminator;
slouken@1926
  2253
slouken@2753
  2254
    /* Extension names should not have spaces. */
slouken@2753
  2255
    where = SDL_strchr(extension, ' ');
slouken@2753
  2256
    if (where || *extension == '\0') {
slouken@2753
  2257
        return SDL_FALSE;
slouken@2753
  2258
    }
slouken@2753
  2259
    /* See if there's an environment variable override */
slouken@2753
  2260
    start = SDL_getenv(extension);
slouken@2753
  2261
    if (start && *start == '0') {
slouken@2753
  2262
        return SDL_FALSE;
slouken@2753
  2263
    }
slouken@2753
  2264
    /* Lookup the available extensions */
slouken@2753
  2265
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@2753
  2266
    if (glGetStringFunc) {
slouken@2753
  2267
        extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@2753
  2268
    } else {
slouken@2753
  2269
        extensions = NULL;
slouken@2753
  2270
    }
slouken@2753
  2271
    if (!extensions) {
slouken@2753
  2272
        return SDL_FALSE;
slouken@2753
  2273
    }
slouken@2753
  2274
    /*
slouken@2753
  2275
     * It takes a bit of care to be fool-proof about parsing the OpenGL
slouken@2753
  2276
     * extensions string. Don't be fooled by sub-strings, etc.
slouken@2753
  2277
     */
slouken@1926
  2278
slouken@2753
  2279
    start = extensions;
slouken@1926
  2280
slouken@2753
  2281
    for (;;) {
slouken@2753
  2282
        where = SDL_strstr(start, extension);
slouken@2753
  2283
        if (!where)
slouken@2753
  2284
            break;
slouken@1926
  2285
slouken@2753
  2286
        terminator = where + SDL_strlen(extension);
slouken@2753
  2287
        if (where == start || *(where - 1) == ' ')
slouken@2753
  2288
            if (*terminator == ' ' || *terminator == '\0')
slouken@2753
  2289
                return SDL_TRUE;
slouken@1926
  2290
slouken@2753
  2291
        start = terminator;
slouken@2753
  2292
    }
slouken@2753
  2293
    return SDL_FALSE;
slouken@1926
  2294
#else
slouken@2753
  2295
    return SDL_FALSE;
slouken@1926
  2296
#endif
slouken@1926
  2297
}
slouken@1926
  2298
slouken@1895
  2299
int
slouken@1895
  2300
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2301
{
hfutrell@2745
  2302
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2303
    int retval;
slouken@0
  2304
slouken@2753
  2305
    if (!_this) {
slouken@2753
  2306
        SDL_UninitializedVideo();
slouken@2753
  2307
        return -1;
slouken@2753
  2308
    }
slouken@2753
  2309
    retval = 0;
slouken@2753
  2310
    switch (attr) {
slouken@2753
  2311
    case SDL_GL_RED_SIZE:
slouken@2753
  2312
        _this->gl_config.red_size = value;
slouken@2753
  2313
        break;
slouken@2753
  2314
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2315
        _this->gl_config.green_size = value;
slouken@2753
  2316
        break;
slouken@2753
  2317
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2318
        _this->gl_config.blue_size = value;
slouken@2753
  2319
        break;
slouken@2753
  2320
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2321
        _this->gl_config.alpha_size = value;
slouken@2753
  2322
        break;
slouken@2753
  2323
    case SDL_GL_DOUBLEBUFFER:
slouken@2753
  2324
        _this->gl_config.double_buffer = value;
slouken@2753
  2325
        break;
slouken@2753
  2326
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2327
        _this->gl_config.buffer_size = value;
slouken@2753
  2328
        break;
slouken@2753
  2329
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2330
        _this->gl_config.depth_size = value;
slouken@2753
  2331
        break;
slouken@2753
  2332
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2333
        _this->gl_config.stencil_size = value;
slouken@2753
  2334
        break;
slouken@2753
  2335
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2336
        _this->gl_config.accum_red_size = value;
slouken@2753
  2337
        break;
slouken@2753
  2338
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2339
        _this->gl_config.accum_green_size = value;
slouken@2753
  2340
        break;
slouken@2753
  2341
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2342
        _this->gl_config.accum_blue_size = value;
slouken@2753
  2343
        break;
slouken@2753
  2344
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2345
        _this->gl_config.accum_alpha_size = value;
slouken@2753
  2346
        break;
slouken@2753
  2347
    case SDL_GL_STEREO:
slouken@2753
  2348
        _this->gl_config.stereo = value;
slouken@2753
  2349
        break;
slouken@2753
  2350
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@2753
  2351
        _this->gl_config.multisamplebuffers = value;
slouken@2753
  2352
        break;
slouken@2753
  2353
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@2753
  2354
        _this->gl_config.multisamplesamples = value;
slouken@2753
  2355
        break;
slouken@2753
  2356
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2357
        _this->gl_config.accelerated = value;
slouken@2753
  2358
        break;
slouken@2753
  2359
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2360
        _this->gl_config.retained_backing = value;
slouken@2753
  2361
        break;
slouken@2753
  2362
    default:
slouken@2753
  2363
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2364
        retval = -1;
slouken@2753
  2365
        break;
slouken@2753
  2366
    }
slouken@2753
  2367
    return retval;
slouken@1936
  2368
#else
slouken@2753
  2369
    SDL_Unsupported();
slouken@2753
  2370
    return -1;
slouken@2753
  2371
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2372
}
slouken@0
  2373
slouken@1895
  2374
int
slouken@1936
  2375
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2376
{
hfutrell@2745
  2377
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2378
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@2753
  2379
    GLenum attrib = 0;
slouken@1912
  2380
slouken@2753
  2381
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@2753
  2382
    if (!glGetIntegervFunc) {
slouken@2753
  2383
        return -1;
slouken@2753
  2384
    }
slouken@2753
  2385
    switch (attr) {
slouken@2753
  2386
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2387
        *value = _this->gl_config.retained_backing;
slouken@2753
  2388
        return 0;
slouken@2753
  2389
    case SDL_GL_RED_SIZE:
slouken@2753
  2390
        attrib = GL_RED_BITS;
slouken@2753
  2391
        break;
slouken@2753
  2392
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2393
        attrib = GL_BLUE_BITS;
slouken@2753
  2394
        break;
slouken@2753
  2395
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2396
        attrib = GL_GREEN_BITS;
slouken@2753
  2397
        break;
slouken@2753
  2398
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2399
        attrib = GL_ALPHA_BITS;
slouken@2753
  2400
        break;
slouken@2753
  2401
    case SDL_GL_DOUBLEBUFFER:
hfutrell@2745
  2402
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2403
        attrib = GL_DOUBLEBUFFER;
slouken@2753
  2404
        break;
hfutrell@2745
  2405
#else
slouken@2753
  2406
        /*
slouken@2753
  2407
         * I believe double buffering is the only option in OpenGL ES
slouken@2753
  2408
         * -- in any case, GL_DOUBLEBUFFER doesn't exist
slouken@2753
  2409
         */
slouken@2753
  2410
        *value = 1;
slouken@2753
  2411
        return 0;
hfutrell@2745
  2412
#endif
slouken@2753
  2413
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2414
        attrib = GL_DEPTH_BITS;
slouken@2753
  2415
        break;
slouken@2753
  2416
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2417
        attrib = GL_STENCIL_BITS;
slouken@2753
  2418
        break;
hfutrell@2745
  2419
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2420
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2421
        attrib = GL_ACCUM_RED_BITS;
slouken@2753
  2422
        break;
slouken@2753
  2423
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2424
        attrib = GL_ACCUM_GREEN_BITS;
slouken@2753
  2425
        break;
slouken@2753
  2426
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2427
        attrib = GL_ACCUM_BLUE_BITS;
slouken@2753
  2428
        break;
slouken@2753
  2429
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2430
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@2753
  2431
        break;
slouken@2753
  2432
    case SDL_GL_STEREO:
slouken@2753
  2433
        attrib = GL_STEREO;
slouken@2753
  2434
        break;
hfutrell@2745
  2435
#else
slouken@2753
  2436
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2437
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2438
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2439
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2440
    case SDL_GL_STEREO:
slouken@2753
  2441
        /* none of these are supported in OpenGL ES */
slouken@2753
  2442
        *value = 0;
slouken@2753
  2443
        return 0;
hfutrell@2745
  2444
#endif
slouken@2753
  2445
    case SDL_GL_MULTISAMPLEBUFFERS:
hfutrell@2745
  2446
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2447
        attrib = GL_SAMPLE_BUFFERS_ARB;
hfutrell@2745
  2448
#else
slouken@2753
  2449
        attrib = GL_SAMPLE_BUFFERS;
hfutrell@2745
  2450
#endif
slouken@2753
  2451
        break;
slouken@2753
  2452
    case SDL_GL_MULTISAMPLESAMPLES:
hfutrell@2745
  2453
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2454
        attrib = GL_SAMPLES_ARB;
hfutrell@2745
  2455
#else
slouken@2753
  2456
        attrib = GL_SAMPLES;
hfutrell@2745
  2457
#endif
slouken@2753
  2458
        break;
slouken@2753
  2459
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2460
        {
slouken@2753
  2461
            GLint bits = 0;
slouken@2753
  2462
            GLint component;
slouken@1936
  2463
slouken@2753
  2464
            /*
slouken@2753
  2465
             * there doesn't seem to be a single flag in OpenGL
slouken@2753
  2466
             * for this!
slouken@2753
  2467
             */
slouken@2753
  2468
            glGetIntegervFunc(GL_RED_BITS, &component);
slouken@2753
  2469
            bits += component;
slouken@2753
  2470
            glGetIntegervFunc(GL_GREEN_BITS, &component);
slouken@2753
  2471
            bits += component;
slouken@2753
  2472
            glGetIntegervFunc(GL_BLUE_BITS, &component);
slouken@2753
  2473
            bits += component;
slouken@2753
  2474
            glGetIntegervFunc(GL_ALPHA_BITS, &component);
slouken@2753
  2475
            bits += component;
slouken@1936
  2476
slouken@2753
  2477
            *value = bits;
slouken@2753
  2478
            return 0;
slouken@2753
  2479
        }
slouken@2753
  2480
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2481
        {
slouken@2753
  2482
            /* FIXME: How do we get this information? */
slouken@2753
  2483
            *value = (_this->gl_config.accelerated != 0);
slouken@2753
  2484
            return 0;
slouken@2753
  2485
        }
slouken@2753
  2486
    default:
slouken@2753
  2487
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2488
        return -1;
slouken@2753
  2489
    }
slouken@0
  2490
slouken@2753
  2491
    glGetIntegervFunc(attrib, (GLint *) value);
slouken@2753
  2492
    return 0;
slouken@1936
  2493
#else
slouken@2753
  2494
    SDL_Unsupported();
slouken@2753
  2495
    return -1;
slouken@2753
  2496
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2497
}
slouken@0
  2498
slouken@1912
  2499
SDL_GLContext
slouken@1912
  2500
SDL_GL_CreateContext(SDL_WindowID windowID)
slouken@1912
  2501
{
slouken@2753
  2502
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2503
slouken@2753
  2504
    if (!window) {
slouken@2753
  2505
        return NULL;
slouken@2753
  2506
    }
slouken@2753
  2507
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2508
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2509
        return NULL;
slouken@2753
  2510
    }
slouken@2753
  2511
    return _this->GL_CreateContext(_this, window);
slouken@1912
  2512
}
slouken@1912
  2513
slouken@1912
  2514
int
slouken@1912
  2515
SDL_GL_MakeCurrent(SDL_WindowID windowID, SDL_GLContext context)
slouken@1912
  2516
{
slouken@2753
  2517
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2518
slouken@2753
  2519
    if (window && !(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2520
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2521
        return -1;
slouken@2753
  2522
    }
slouken@2753
  2523
    if (!context) {
slouken@2753
  2524
        window = NULL;
slouken@2753
  2525
    }
slouken@2753
  2526
    return _this->GL_MakeCurrent(_this, window, context);
slouken@1912
  2527
}
slouken@1912
  2528
slouken@1912
  2529
int
slouken@1912
  2530
SDL_GL_SetSwapInterval(int interval)
slouken@1912
  2531
{
slouken@2753
  2532
    if (!_this) {
slouken@2753
  2533
        SDL_UninitializedVideo();
slouken@2753
  2534
        return -1;
slouken@2753
  2535
    }
slouken@2753
  2536
    if (_this->GL_SetSwapInterval) {
slouken@2753
  2537
        return _this->GL_SetSwapInterval(_this, interval);
slouken@2753
  2538
    } else {
slouken@2753
  2539
        SDL_SetError("Setting the swap interval is not supported");
slouken@2753
  2540
        return -1;
slouken@2753
  2541
    }
slouken@1912
  2542
}
slouken@1912
  2543
slouken@1912
  2544
int
slouken@1912
  2545
SDL_GL_GetSwapInterval(void)
slouken@1912
  2546
{
slouken@2753
  2547
    if (!_this) {
slouken@2753
  2548
        SDL_UninitializedVideo();
slouken@2753
  2549
        return -1;
slouken@2753
  2550
    }
slouken@2753
  2551
    if (_this->GL_GetSwapInterval) {
slouken@2753
  2552
        return _this->GL_GetSwapInterval(_this);
slouken@2753
  2553
    } else {
slouken@2753
  2554
        SDL_SetError("Getting the swap interval is not supported");
slouken@2753
  2555
        return -1;
slouken@2753
  2556
    }
slouken@1912
  2557
}
slouken@1912
  2558
slouken@1895
  2559
void
slouken@1912
  2560
SDL_GL_SwapWindow(SDL_WindowID windowID)
slouken@0
  2561
{
slouken@2753
  2562
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2563
slouken@2753
  2564
    if (!window) {
slouken@2753
  2565
        return;
slouken@2753
  2566
    }
slouken@2753
  2567
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2568
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2569
        return;
slouken@2753
  2570
    }
slouken@2753
  2571
    _this->GL_SwapWindow(_this, window);
slouken@1912
  2572
}
slouken@1912
  2573
slouken@1912
  2574
void
slouken@1912
  2575
SDL_GL_DeleteContext(SDL_GLContext context)
slouken@1912
  2576
{
slouken@2753
  2577
    if (!_this || !context) {
slouken@2753
  2578
        return;
slouken@2753
  2579
    }
slouken@2753
  2580
    _this->GL_MakeCurrent(_this, NULL, NULL);
slouken@2753
  2581
    _this->GL_DeleteContext(_this, context);
slouken@0
  2582
}
slouken@0
  2583
slouken@1895
  2584
#if 0                           // FIXME
hfutrell@2744
  2585
/*
hfutrell@2744
  2586
 * Utility function used by SDL_WM_SetIcon(); flags & 1 for color key, flags
hfutrell@2744
  2587
 * & 2 for alpha channel.
hfutrell@2744
  2588
 */
slouken@1895
  2589
static void
slouken@1895
  2590
CreateMaskFromColorKeyOrAlpha(SDL_Surface * icon, Uint8 * mask, int flags)
slouken@0
  2591
{
slouken@2753
  2592
    int x, y;
slouken@2753
  2593
    Uint32 colorkey;
slouken@0
  2594
#define SET_MASKBIT(icon, x, y, mask) \
slouken@0
  2595
	mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8)))
slouken@0
  2596
slouken@2753
  2597
    colorkey = icon->format->colorkey;
slouken@2753
  2598
    switch (icon->format->BytesPerPixel) {
slouken@2753
  2599
    case 1:
slouken@2753
  2600
        {
slouken@2753
  2601
            Uint8 *pixels;
slouken@2753
  2602
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2603
                pixels = (Uint8 *) icon->pixels + y * icon->pitch;
slouken@2753
  2604
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2605
                    if (*pixels++ == colorkey) {
slouken@2753
  2606
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2607
                    }
slouken@2753
  2608
                }
slouken@2753
  2609
            }
slouken@2753
  2610
        }
slouken@2753
  2611
        break;
slouken@0
  2612
slouken@2753
  2613
    case 2:
slouken@2753
  2614
        {
slouken@2753
  2615
            Uint16 *pixels;
slouken@2753
  2616
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2617
                pixels = (Uint16 *) icon->pixels + y * icon->pitch / 2;
slouken@2753
  2618
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2619
                    if ((flags & 1) && *pixels == colorkey) {
slouken@2753
  2620
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2621
                    } else if ((flags & 2)
slouken@2753
  2622
                               && (*pixels & icon->format->Amask) == 0) {
slouken@2753
  2623
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2624
                    }
slouken@2753
  2625
                    pixels++;
slouken@2753
  2626
                }
slouken@2753
  2627
            }
slouken@2753
  2628
        }
slouken@2753
  2629
        break;
slouken@0
  2630
slouken@2753
  2631
    case 4:
slouken@2753
  2632
        {
slouken@2753
  2633
            Uint32 *pixels;
slouken@2753
  2634
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2635
                pixels = (Uint32 *) icon->pixels + y * icon->pitch / 4;
slouken@2753
  2636
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2637
                    if ((flags & 1) && *pixels == colorkey) {
slouken@2753
  2638
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2639
                    } else if ((flags & 2)
slouken@2753
  2640
                               && (*pixels & icon->format->Amask) == 0) {
slouken@2753
  2641
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2642
                    }
slouken@2753
  2643
                    pixels++;
slouken@2753
  2644
                }
slouken@2753
  2645
            }
slouken@2753
  2646
        }
slouken@2753
  2647
        break;
slouken@2753
  2648
    }
slouken@0
  2649
}
slouken@0
  2650
slouken@0
  2651
/*
slouken@0
  2652
 * Sets the window manager icon for the display window.
slouken@0
  2653
 */
slouken@1895
  2654
void
slouken@1895
  2655
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
slouken@0
  2656
{
slouken@2753
  2657
    if (icon && _this->SetIcon) {
slouken@2753
  2658
        /* Generate a mask if necessary, and create the icon! */
slouken@2753
  2659
        if (mask == NULL) {
slouken@2753
  2660
            int mask_len = icon->h * (icon->w + 7) / 8;
slouken@2753
  2661
            int flags = 0;
slouken@2753
  2662
            mask = (Uint8 *) SDL_malloc(mask_len);
slouken@2753
  2663
            if (mask == NULL) {
slouken@2753
  2664
                return;
slouken@2753
  2665
            }
slouken@2753
  2666
            SDL_memset(mask, ~0, mask_len);
slouken@2753
  2667
            if (icon->flags & SDL_SRCCOLORKEY)
slouken@2753
  2668
                flags |= 1;
slouken@2753
  2669
            if (icon->flags & SDL_SRCALPHA)
slouken@2753
  2670
                flags |= 2;
slouken@2753
  2671
            if (flags) {
slouken@2753
  2672
                CreateMaskFromColorKeyOrAlpha(icon, mask, flags);
slouken@2753
  2673
            }
slouken@2753
  2674
            _this->SetIcon(_this, icon, mask);
slouken@2753
  2675
            SDL_free(mask);
slouken@2753
  2676
        } else {
slouken@2753
  2677
            _this->SetIcon(_this, icon, mask);
slouken@2753
  2678
        }
slouken@2753
  2679
    }
slouken@1895
  2680
}
slouken@1895
  2681
#endif
slouken@0
  2682
slouken@1895
  2683
SDL_bool
slouken@2753
  2684
SDL_GetWindowWMInfo(SDL_WindowID windowID, struct SDL_SysWMinfo *info)
slouken@1895
  2685
{
slouken@2753
  2686
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  2687
slouken@2753
  2688
    if (!window || !_this->GetWindowWMInfo) {
slouken@2753
  2689
        return SDL_FALSE;
slouken@2753
  2690
    }
slouken@2753
  2691
    return (_this->GetWindowWMInfo(_this, window, info));
slouken@0
  2692
}
slouken@0
  2693
slouken@1895
  2694
/* vi: set ts=4 sw=4 expandtab: */