Mercurial > sdl-ios-xcode
annotate src/video/SDL_video.c @ 1379:c0a74f199ecf
Use only safe string functions
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 19 Feb 2006 23:46:34 +0000 |
| parents | 19418e4422cb |
| children | 85d8b5fdd9f6 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 /* The high-level video driver subsystem */ | |
| 24 | |
| 25 #include "SDL.h" | |
| 26 #include "SDL_sysvideo.h" | |
| 27 #include "SDL_blit.h" | |
| 28 #include "SDL_pixels_c.h" | |
| 29 #include "SDL_cursor_c.h" | |
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30 #include "../events/SDL_sysevents.h" |
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31 #include "../events/SDL_events_c.h" |
| 0 | 32 |
| 33 /* Available video drivers */ | |
| 34 static VideoBootStrap *bootstrap[] = { | |
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35 #if SDL_VIDEO_DRIVER_QUARTZ |
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36 &QZ_bootstrap, |
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37 #endif |
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38 #if SDL_VIDEO_DRIVER_X11 |
| 0 | 39 &X11_bootstrap, |
| 40 #endif | |
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41 #if SDL_VIDEO_DRIVER_DGA |
| 0 | 42 &DGA_bootstrap, |
| 43 #endif | |
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44 #if SDL_VIDEO_DRIVER_NANOX |
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45 &NX_bootstrap, |
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46 #endif |
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47 #if SDL_VIDEO_DRIVER_IPOD |
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48 &iPod_bootstrap, |
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49 #endif |
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50 #if SDL_VIDEO_DRIVER_QTOPIA |
| 567 | 51 &Qtopia_bootstrap, |
| 52 #endif | |
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53 #if SDL_VIDEO_DRIVER_WSCONS |
| 1187 | 54 &WSCONS_bootstrap, |
| 55 #endif | |
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56 #if SDL_VIDEO_DRIVER_FBCON |
| 0 | 57 &FBCON_bootstrap, |
| 58 #endif | |
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59 #if SDL_VIDEO_DRIVER_DIRECTFB |
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60 &DirectFB_bootstrap, |
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61 #endif |
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62 #if SDL_VIDEO_DRIVER_PS2GS |
| 0 | 63 &PS2GS_bootstrap, |
| 64 #endif | |
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65 #if SDL_VIDEO_DRIVER_GGI |
| 0 | 66 &GGI_bootstrap, |
| 67 #endif | |
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68 #if SDL_VIDEO_DRIVER_VGL |
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69 &VGL_bootstrap, |
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70 #endif |
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71 #if SDL_VIDEO_DRIVER_SVGALIB |
| 0 | 72 &SVGALIB_bootstrap, |
| 73 #endif | |
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74 #if SDL_VIDEO_DRIVER_GAPI |
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75 &GAPI_bootstrap, |
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76 #endif |
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77 #if SDL_VIDEO_DRIVER_WINDIB |
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78 &WINDIB_bootstrap, |
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79 #endif |
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80 #if SDL_VIDEO_DRIVER_DDRAW |
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81 &DIRECTX_bootstrap, |
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82 #endif |
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83 #if SDL_VIDEO_DRIVER_BWINDOW |
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84 &BWINDOW_bootstrap, |
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85 #endif |
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86 #if SDL_VIDEO_DRIVER_TOOLBOX |
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87 &TOOLBOX_bootstrap, |
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88 #endif |
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89 #if SDL_VIDEO_DRIVER_DRAWSPROCKET |
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90 &DSp_bootstrap, |
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91 #endif |
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92 #if SDL_VIDEO_DRIVER_CYBERGRAPHICS |
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93 &CGX_bootstrap, |
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94 #endif |
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95 #if SDL_VIDEO_DRIVER_PHOTON |
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96 &ph_bootstrap, |
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97 #endif |
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98 #if SDL_VIDEO_DRIVER_EPOC |
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99 &EPOC_bootstrap, |
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100 #endif |
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101 #if SDL_VIDEO_DRIVER_XBIOS |
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102 &XBIOS_bootstrap, |
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103 #endif |
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104 #if SDL_VIDEO_DRIVER_GEM |
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105 &GEM_bootstrap, |
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106 #endif |
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107 #if SDL_VIDEO_DRIVER_PICOGUI |
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108 &PG_bootstrap, |
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109 #endif |
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110 #if SDL_VIDEO_DRIVER_DC |
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111 &DC_bootstrap, |
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112 #endif |
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113 #if SDL_VIDEO_DRIVER_RISCOS |
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114 &RISCOS_bootstrap, |
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115 #endif |
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116 #if SDL_VIDEO_DRIVER_OS2FS |
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117 &OS2FSLib_bootstrap, |
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118 #endif |
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119 #if SDL_VIDEO_DRIVER_AALIB |
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120 &AALIB_bootstrap, |
| 0 | 121 #endif |
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122 #if SDL_VIDEO_DRIVER_DUMMY |
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123 &DUMMY_bootstrap, |
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124 #endif |
| 0 | 125 NULL |
| 126 }; | |
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127 |
| 0 | 128 SDL_VideoDevice *current_video = NULL; |
| 129 | |
| 130 /* Various local functions */ | |
| 131 int SDL_VideoInit(const char *driver_name, Uint32 flags); | |
| 132 void SDL_VideoQuit(void); | |
| 133 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect* rects); | |
| 134 | |
| 135 static SDL_GrabMode SDL_WM_GrabInputOff(void); | |
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136 #if SDL_VIDEO_OPENGL |
| 0 | 137 static int lock_count = 0; |
| 138 #endif | |
| 139 | |
| 140 | |
| 141 /* | |
| 142 * Initialize the video and event subsystems -- determine native pixel format | |
| 143 */ | |
| 144 int SDL_VideoInit (const char *driver_name, Uint32 flags) | |
| 145 { | |
| 146 SDL_VideoDevice *video; | |
| 147 int index; | |
| 148 int i; | |
| 149 SDL_PixelFormat vformat; | |
| 150 Uint32 video_flags; | |
| 151 | |
| 152 /* Toggle the event thread flags, based on OS requirements */ | |
| 153 #if defined(MUST_THREAD_EVENTS) | |
| 154 flags |= SDL_INIT_EVENTTHREAD; | |
| 155 #elif defined(CANT_THREAD_EVENTS) | |
| 156 if ( (flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD ) { | |
| 157 SDL_SetError("OS doesn't support threaded events"); | |
| 158 return(-1); | |
| 159 } | |
| 160 #endif | |
| 161 | |
| 162 /* Check to make sure we don't overwrite 'current_video' */ | |
| 163 if ( current_video != NULL ) { | |
| 164 SDL_VideoQuit(); | |
| 165 } | |
| 166 | |
| 167 /* Select the proper video driver */ | |
| 168 index = 0; | |
| 169 video = NULL; | |
| 170 if ( driver_name != NULL ) { | |
| 171 #if 0 /* This will be replaced with a better driver selection API */ | |
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172 if ( SDL_strrchr(driver_name, ':') != NULL ) { |
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173 index = atoi(SDL_strrchr(driver_name, ':')+1); |
| 0 | 174 } |
| 175 #endif | |
| 176 for ( i=0; bootstrap[i]; ++i ) { | |
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177 if ( SDL_strncmp(bootstrap[i]->name, driver_name, |
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178 SDL_strlen(bootstrap[i]->name)) == 0 ) { |
| 0 | 179 if ( bootstrap[i]->available() ) { |
| 180 video = bootstrap[i]->create(index); | |
| 181 break; | |
| 182 } | |
| 183 } | |
| 184 } | |
| 185 } else { | |
| 186 for ( i=0; bootstrap[i]; ++i ) { | |
| 187 if ( bootstrap[i]->available() ) { | |
| 188 video = bootstrap[i]->create(index); | |
| 189 if ( video != NULL ) { | |
| 190 break; | |
| 191 } | |
| 192 } | |
| 193 } | |
| 194 } | |
| 195 if ( video == NULL ) { | |
| 196 SDL_SetError("No available video device"); | |
| 197 return(-1); | |
| 198 } | |
| 199 current_video = video; | |
| 200 current_video->name = bootstrap[i]->name; | |
| 201 | |
| 202 /* Do some basic variable initialization */ | |
| 203 video->screen = NULL; | |
| 204 video->shadow = NULL; | |
| 205 video->visible = NULL; | |
| 206 video->physpal = NULL; | |
| 207 video->gammacols = NULL; | |
| 208 video->gamma = NULL; | |
| 209 video->wm_title = NULL; | |
| 210 video->wm_icon = NULL; | |
| 211 video->offset_x = 0; | |
| 212 video->offset_y = 0; | |
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213 SDL_memset(&video->info, 0, (sizeof video->info)); |
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214 |
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215 video->displayformatalphapixel = NULL; |
| 0 | 216 |
| 217 /* Set some very sane GL defaults */ | |
| 218 video->gl_config.driver_loaded = 0; | |
| 219 video->gl_config.dll_handle = NULL; | |
| 220 video->gl_config.red_size = 5; | |
| 221 #if 1 /* This seems to work on more video cards, as a default */ | |
| 222 video->gl_config.green_size = 5; | |
| 223 #else | |
| 224 video->gl_config.green_size = 6; | |
| 225 #endif | |
| 226 video->gl_config.blue_size = 5; | |
| 227 video->gl_config.alpha_size = 0; | |
| 228 video->gl_config.buffer_size = 0; | |
| 229 video->gl_config.depth_size = 16; | |
| 230 video->gl_config.stencil_size = 0; | |
| 231 video->gl_config.double_buffer = 1; | |
| 232 video->gl_config.accum_red_size = 0; | |
| 233 video->gl_config.accum_green_size = 0; | |
| 234 video->gl_config.accum_blue_size = 0; | |
| 235 video->gl_config.accum_alpha_size = 0; | |
|
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236 video->gl_config.stereo = 0; |
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237 video->gl_config.multisamplebuffers = 0; |
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238 video->gl_config.multisamplesamples = 0; |
| 0 | 239 |
| 240 /* Initialize the video subsystem */ | |
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241 SDL_memset(&vformat, 0, sizeof(vformat)); |
| 0 | 242 if ( video->VideoInit(video, &vformat) < 0 ) { |
| 243 SDL_VideoQuit(); | |
| 244 return(-1); | |
| 245 } | |
| 246 | |
| 247 /* Create a zero sized video surface of the appropriate format */ | |
| 248 video_flags = SDL_SWSURFACE; | |
| 249 SDL_VideoSurface = SDL_CreateRGBSurface(video_flags, 0, 0, | |
| 250 vformat.BitsPerPixel, | |
| 251 vformat.Rmask, vformat.Gmask, vformat.Bmask, 0); | |
| 252 if ( SDL_VideoSurface == NULL ) { | |
| 253 SDL_VideoQuit(); | |
| 254 return(-1); | |
| 255 } | |
| 256 SDL_PublicSurface = NULL; /* Until SDL_SetVideoMode() */ | |
| 257 | |
| 258 #if 0 /* Don't change the current palette - may be used by other programs. | |
| 259 * The application can't do anything with the display surface until | |
| 260 * a video mode has been set anyway. :) | |
| 261 */ | |
| 262 /* If we have a palettized surface, create a default palette */ | |
| 263 if ( SDL_VideoSurface->format->palette ) { | |
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264 SDL_PixelFormat *vf = SDL_VideoSurface->format; |
| 0 | 265 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 266 video->SetColors(video, | |
| 267 0, vf->palette->ncolors, vf->palette->colors); | |
| 268 } | |
| 269 #endif | |
| 270 video->info.vfmt = SDL_VideoSurface->format; | |
| 271 | |
| 272 /* Start the event loop */ | |
| 273 if ( SDL_StartEventLoop(flags) < 0 ) { | |
| 274 SDL_VideoQuit(); | |
| 275 return(-1); | |
| 276 } | |
| 277 SDL_CursorInit(flags & SDL_INIT_EVENTTHREAD); | |
| 278 | |
| 279 /* We're ready to go! */ | |
| 280 return(0); | |
| 281 } | |
| 282 | |
| 283 char *SDL_VideoDriverName(char *namebuf, int maxlen) | |
| 284 { | |
| 285 if ( current_video != NULL ) { | |
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286 SDL_strlcpy(namebuf, current_video->name, maxlen); |
| 0 | 287 return(namebuf); |
| 288 } | |
| 289 return(NULL); | |
| 290 } | |
| 291 | |
| 292 /* | |
| 293 * Get the current display surface | |
| 294 */ | |
| 295 SDL_Surface *SDL_GetVideoSurface(void) | |
| 296 { | |
| 297 SDL_Surface *visible; | |
| 298 | |
| 299 visible = NULL; | |
| 300 if ( current_video ) { | |
| 301 visible = current_video->visible; | |
| 302 } | |
| 303 return(visible); | |
| 304 } | |
| 305 | |
| 306 /* | |
| 307 * Get the current information about the video hardware | |
| 308 */ | |
| 309 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
| 310 { | |
| 311 const SDL_VideoInfo *info; | |
| 312 | |
| 313 info = NULL; | |
| 314 if ( current_video ) { | |
| 315 info = ¤t_video->info; | |
| 316 } | |
| 317 return(info); | |
| 318 } | |
| 319 | |
| 320 /* | |
| 321 * Return a pointer to an array of available screen dimensions for the | |
| 322 * given format, sorted largest to smallest. Returns NULL if there are | |
| 323 * no dimensions available for a particular format, or (SDL_Rect **)-1 | |
| 324 * if any dimension is okay for the given format. If 'format' is NULL, | |
| 325 * the mode list will be for the format given by SDL_GetVideoInfo()->vfmt | |
| 326 */ | |
| 327 SDL_Rect ** SDL_ListModes (SDL_PixelFormat *format, Uint32 flags) | |
| 328 { | |
| 329 SDL_VideoDevice *video = current_video; | |
| 330 SDL_VideoDevice *this = current_video; | |
| 331 SDL_Rect **modes; | |
| 332 | |
| 333 modes = NULL; | |
| 334 if ( SDL_VideoSurface ) { | |
| 335 if ( format == NULL ) { | |
| 336 format = SDL_VideoSurface->format; | |
| 337 } | |
| 338 modes = video->ListModes(this, format, flags); | |
| 339 } | |
| 340 return(modes); | |
| 341 } | |
| 342 | |
| 343 /* | |
| 344 * Check to see if a particular video mode is supported. | |
| 345 * It returns 0 if the requested mode is not supported under any bit depth, | |
| 346 * or returns the bits-per-pixel of the closest available mode with the | |
| 347 * given width and height. If this bits-per-pixel is different from the | |
| 348 * one used when setting the video mode, SDL_SetVideoMode() will succeed, | |
| 349 * but will emulate the requested bits-per-pixel with a shadow surface. | |
| 350 */ | |
| 351 static Uint8 SDL_closest_depths[4][8] = { | |
| 352 /* 8 bit closest depth ordering */ | |
| 353 { 0, 8, 16, 15, 32, 24, 0, 0 }, | |
| 354 /* 15,16 bit closest depth ordering */ | |
| 355 { 0, 16, 15, 32, 24, 8, 0, 0 }, | |
| 356 /* 24 bit closest depth ordering */ | |
| 357 { 0, 24, 32, 16, 15, 8, 0, 0 }, | |
| 358 /* 32 bit closest depth ordering */ | |
| 359 { 0, 32, 16, 15, 24, 8, 0, 0 } | |
| 360 }; | |
| 361 | |
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362 |
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363 #ifdef macintosh /* MPW optimization bug? */ |
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364 #define NEGATIVE_ONE 0xFFFFFFFF |
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365 #else |
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366 #define NEGATIVE_ONE -1 |
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367 #endif |
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368 |
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369 int SDL_VideoModeOK (int width, int height, int bpp, Uint32 flags) |
| 0 | 370 { |
| 371 int table, b, i; | |
| 372 int supported; | |
| 373 SDL_PixelFormat format; | |
| 374 SDL_Rect **sizes; | |
| 375 | |
| 376 /* Currently 1 and 4 bpp are not supported */ | |
| 377 if ( bpp < 8 || bpp > 32 ) { | |
| 378 return(0); | |
| 379 } | |
|
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380 if ( (width <= 0) || (height <= 0) ) { |
| 0 | 381 return(0); |
| 382 } | |
| 383 | |
| 384 /* Search through the list valid of modes */ | |
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385 SDL_memset(&format, 0, sizeof(format)); |
| 0 | 386 supported = 0; |
| 387 table = ((bpp+7)/8)-1; | |
| 388 SDL_closest_depths[table][0] = bpp; | |
| 389 SDL_closest_depths[table][7] = 0; | |
| 390 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 391 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 392 sizes = SDL_ListModes(&format, flags); | |
| 393 if ( sizes == (SDL_Rect **)0 ) { | |
| 394 /* No sizes supported at this bit-depth */ | |
| 395 continue; | |
| 396 } else | |
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397 if (sizes == (SDL_Rect **)NEGATIVE_ONE) { |
| 0 | 398 /* Any size supported at this bit-depth */ |
| 399 supported = 1; | |
| 400 continue; | |
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401 } else if (current_video->handles_any_size) { |
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402 /* Driver can center a smaller surface to simulate fullscreen */ |
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403 for ( i=0; sizes[i]; ++i ) { |
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404 if ((sizes[i]->w >= width) && (sizes[i]->h >= height)) { |
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405 supported = 1; /* this mode can fit the centered window. */ |
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406 break; |
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407 } |
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408 } |
| 0 | 409 } else |
| 410 for ( i=0; sizes[i]; ++i ) { | |
| 411 if ((sizes[i]->w == width) && (sizes[i]->h == height)) { | |
| 412 supported = 1; | |
| 413 break; | |
| 414 } | |
| 415 } | |
| 416 } | |
| 417 if ( supported ) { | |
| 418 --b; | |
| 419 return(SDL_closest_depths[table][b]); | |
| 420 } else { | |
| 421 return(0); | |
| 422 } | |
| 423 } | |
| 424 | |
| 425 /* | |
| 426 * Get the closest non-emulated video mode to the one requested | |
| 427 */ | |
| 428 static int SDL_GetVideoMode (int *w, int *h, int *BitsPerPixel, Uint32 flags) | |
| 429 { | |
| 430 int table, b, i; | |
| 431 int supported; | |
| 432 int native_bpp; | |
| 433 SDL_PixelFormat format; | |
| 434 SDL_Rect **sizes; | |
| 435 | |
|
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436 /* Check parameters */ |
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437 if ( *BitsPerPixel < 8 || *BitsPerPixel > 32 ) { |
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438 SDL_SetError("Invalid bits per pixel (range is {8...32})"); |
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439 return(0); |
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440 } |
|
430
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441 if ((*w <= 0) || (*h <= 0)) { |
|
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442 SDL_SetError("Invalid width or height"); |
|
430
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443 return(0); |
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444 } |
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445 |
| 0 | 446 /* Try the original video mode, get the closest depth */ |
| 447 native_bpp = SDL_VideoModeOK(*w, *h, *BitsPerPixel, flags); | |
| 448 if ( native_bpp == *BitsPerPixel ) { | |
| 449 return(1); | |
| 450 } | |
| 451 if ( native_bpp > 0 ) { | |
| 452 *BitsPerPixel = native_bpp; | |
| 453 return(1); | |
| 454 } | |
| 455 | |
| 456 /* No exact size match at any depth, look for closest match */ | |
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457 SDL_memset(&format, 0, sizeof(format)); |
| 0 | 458 supported = 0; |
| 459 table = ((*BitsPerPixel+7)/8)-1; | |
| 460 SDL_closest_depths[table][0] = *BitsPerPixel; | |
| 461 SDL_closest_depths[table][7] = SDL_VideoSurface->format->BitsPerPixel; | |
| 462 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
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463 int best; |
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464 |
| 0 | 465 format.BitsPerPixel = SDL_closest_depths[table][b]; |
| 466 sizes = SDL_ListModes(&format, flags); | |
| 467 if ( sizes == (SDL_Rect **)0 ) { | |
| 468 /* No sizes supported at this bit-depth */ | |
| 469 continue; | |
| 470 } | |
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471 best=0; |
| 0 | 472 for ( i=0; sizes[i]; ++i ) { |
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473 /* Mode with both dimensions bigger or equal than asked ? */ |
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474 if ((sizes[i]->w >= *w) && (sizes[i]->h >= *h)) { |
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475 /* Mode with any dimension smaller or equal than current best ? */ |
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476 if ((sizes[i]->w <= sizes[best]->w) || (sizes[i]->h <= sizes[best]->h)) { |
|
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477 /* Now choose the mode that has less pixels */ |
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478 if ((sizes[i]->w * sizes[i]->h) <= (sizes[best]->w * sizes[best]->h)) { |
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479 best=i; |
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480 supported = 1; |
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481 } |
| 0 | 482 } |
| 483 } | |
| 484 } | |
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485 if (supported) { |
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486 *w=sizes[best]->w; |
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487 *h=sizes[best]->h; |
| 0 | 488 *BitsPerPixel = SDL_closest_depths[table][b]; |
| 489 } | |
| 490 } | |
| 491 if ( ! supported ) { | |
| 492 SDL_SetError("No video mode large enough for %dx%d", *w, *h); | |
| 493 } | |
| 494 return(supported); | |
| 495 } | |
| 496 | |
| 497 /* This should probably go somewhere else -- like SDL_surface.c */ | |
| 498 static void SDL_ClearSurface(SDL_Surface *surface) | |
| 499 { | |
| 500 Uint32 black; | |
| 501 | |
| 502 black = SDL_MapRGB(surface->format, 0, 0, 0); | |
| 503 SDL_FillRect(surface, NULL, black); | |
| 504 if ((surface->flags&SDL_HWSURFACE) && (surface->flags&SDL_DOUBLEBUF)) { | |
| 505 SDL_Flip(surface); | |
| 506 SDL_FillRect(surface, NULL, black); | |
| 507 } | |
| 508 SDL_Flip(surface); | |
| 509 } | |
| 510 | |
| 511 /* | |
| 512 * Create a shadow surface suitable for fooling the app. :-) | |
| 513 */ | |
| 514 static void SDL_CreateShadowSurface(int depth) | |
| 515 { | |
| 516 Uint32 Rmask, Gmask, Bmask; | |
| 517 | |
| 518 /* Allocate the shadow surface */ | |
| 519 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 520 Rmask = (SDL_VideoSurface->format)->Rmask; | |
| 521 Gmask = (SDL_VideoSurface->format)->Gmask; | |
| 522 Bmask = (SDL_VideoSurface->format)->Bmask; | |
| 523 } else { | |
| 524 Rmask = Gmask = Bmask = 0; | |
| 525 } | |
| 526 SDL_ShadowSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
| 527 SDL_VideoSurface->w, SDL_VideoSurface->h, | |
| 528 depth, Rmask, Gmask, Bmask, 0); | |
| 529 if ( SDL_ShadowSurface == NULL ) { | |
| 530 return; | |
| 531 } | |
| 532 | |
| 533 /* 8-bit shadow surfaces report that they have exclusive palette */ | |
| 534 if ( SDL_ShadowSurface->format->palette ) { | |
| 535 SDL_ShadowSurface->flags |= SDL_HWPALETTE; | |
| 536 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
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537 SDL_memcpy(SDL_ShadowSurface->format->palette->colors, |
| 0 | 538 SDL_VideoSurface->format->palette->colors, |
| 539 SDL_VideoSurface->format->palette->ncolors* | |
| 540 sizeof(SDL_Color)); | |
| 541 } else { | |
| 542 SDL_DitherColors( | |
| 543 SDL_ShadowSurface->format->palette->colors, depth); | |
| 544 } | |
| 545 } | |
| 546 | |
| 547 /* If the video surface is resizable, the shadow should say so */ | |
| 548 if ( (SDL_VideoSurface->flags & SDL_RESIZABLE) == SDL_RESIZABLE ) { | |
| 549 SDL_ShadowSurface->flags |= SDL_RESIZABLE; | |
| 550 } | |
| 551 /* If the video surface has no frame, the shadow should say so */ | |
| 552 if ( (SDL_VideoSurface->flags & SDL_NOFRAME) == SDL_NOFRAME ) { | |
| 553 SDL_ShadowSurface->flags |= SDL_NOFRAME; | |
| 554 } | |
| 555 /* If the video surface is fullscreen, the shadow should say so */ | |
| 556 if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 557 SDL_ShadowSurface->flags |= SDL_FULLSCREEN; | |
| 558 } | |
| 559 /* If the video surface is flippable, the shadow should say so */ | |
| 560 if ( (SDL_VideoSurface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 561 SDL_ShadowSurface->flags |= SDL_DOUBLEBUF; | |
| 562 } | |
| 563 return; | |
| 564 } | |
| 565 | |
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566 #ifdef __QNXNTO__ |
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567 #include <sys/neutrino.h> |
|
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568 #endif /* __QNXNTO__ */ |
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569 |
| 0 | 570 /* |
| 571 * Set the requested video mode, allocating a shadow buffer if necessary. | |
| 572 */ | |
| 573 SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags) | |
| 574 { | |
| 575 SDL_VideoDevice *video, *this; | |
| 576 SDL_Surface *prev_mode, *mode; | |
| 577 int video_w; | |
| 578 int video_h; | |
| 579 int video_bpp; | |
| 580 int is_opengl; | |
| 581 SDL_GrabMode saved_grab; | |
| 582 | |
| 583 /* Start up the video driver, if necessary.. | |
| 584 WARNING: This is the only function protected this way! | |
| 585 */ | |
| 586 if ( ! current_video ) { | |
| 587 if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE) < 0 ) { | |
| 588 return(NULL); | |
| 589 } | |
| 590 } | |
| 591 this = video = current_video; | |
| 592 | |
| 593 /* Default to the current video bpp */ | |
| 594 if ( bpp == 0 ) { | |
| 595 flags |= SDL_ANYFORMAT; | |
| 596 bpp = SDL_VideoSurface->format->BitsPerPixel; | |
| 597 } | |
| 598 | |
| 599 /* Get a good video mode, the closest one possible */ | |
| 600 video_w = width; | |
| 601 video_h = height; | |
| 602 video_bpp = bpp; | |
| 603 if ( ! SDL_GetVideoMode(&video_w, &video_h, &video_bpp, flags) ) { | |
| 604 return(NULL); | |
| 605 } | |
| 606 | |
| 607 /* Check the requested flags */ | |
| 608 /* There's no palette in > 8 bits-per-pixel mode */ | |
| 609 if ( video_bpp > 8 ) { | |
| 610 flags &= ~SDL_HWPALETTE; | |
| 611 } | |
| 612 #if 0 | |
| 613 if ( (flags&SDL_FULLSCREEN) != SDL_FULLSCREEN ) { | |
| 614 /* There's no windowed double-buffering */ | |
| 615 flags &= ~SDL_DOUBLEBUF; | |
| 616 } | |
| 617 #endif | |
| 618 if ( (flags&SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 619 /* Use hardware surfaces when double-buffering */ | |
| 620 flags |= SDL_HWSURFACE; | |
| 621 } | |
| 622 | |
| 623 is_opengl = ( ( flags & SDL_OPENGL ) == SDL_OPENGL ); | |
| 624 if ( is_opengl ) { | |
| 625 /* These flags are for 2D video modes only */ | |
| 626 flags &= ~(SDL_HWSURFACE|SDL_DOUBLEBUF); | |
| 627 } | |
| 628 | |
|
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629 /* Reset the keyboard here so event callbacks can run */ |
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630 SDL_ResetKeyboard(); |
|
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631 SDL_ResetMouse(); |
| 1296 | 632 SDL_cursorstate &= ~CURSOR_USINGSW; |
|
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633 |
| 0 | 634 /* Clean up any previous video mode */ |
| 635 if ( SDL_PublicSurface != NULL ) { | |
| 636 SDL_PublicSurface = NULL; | |
| 637 } | |
| 638 if ( SDL_ShadowSurface != NULL ) { | |
| 639 SDL_Surface *ready_to_go; | |
| 640 ready_to_go = SDL_ShadowSurface; | |
| 641 SDL_ShadowSurface = NULL; | |
| 642 SDL_FreeSurface(ready_to_go); | |
| 643 } | |
| 644 if ( video->physpal ) { | |
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645 SDL_free(video->physpal->colors); |
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646 SDL_free(video->physpal); |
| 0 | 647 video->physpal = NULL; |
| 648 } | |
| 649 if( video->gammacols) { | |
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650 SDL_free(video->gammacols); |
| 0 | 651 video->gammacols = NULL; |
| 652 } | |
| 653 | |
| 654 /* Save the previous grab state and turn off grab for mode switch */ | |
| 655 saved_grab = SDL_WM_GrabInputOff(); | |
| 656 | |
| 657 /* Try to set the video mode, along with offset and clipping */ | |
| 658 prev_mode = SDL_VideoSurface; | |
| 659 SDL_LockCursor(); | |
| 660 SDL_VideoSurface = NULL; /* In case it's freed by driver */ | |
| 661 mode = video->SetVideoMode(this, prev_mode,video_w,video_h,video_bpp,flags); | |
| 662 if ( mode ) { /* Prevent resize events from mode change */ | |
| 1190 | 663 /* But not on OS/2 */ |
| 664 #ifndef __OS2__ | |
| 0 | 665 SDL_PrivateResize(mode->w, mode->h); |
| 1190 | 666 #endif |
|
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667 |
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668 /* Sam - If we asked for OpenGL mode, and didn't get it, fail */ |
|
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669 if ( is_opengl && !(mode->flags & SDL_OPENGL) ) { |
|
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670 mode = NULL; |
|
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671 SDL_SetError("OpenGL not available"); |
|
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672 } |
|
662
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673 } |
| 0 | 674 /* |
| 675 * rcg11292000 | |
| 676 * If you try to set an SDL_OPENGL surface, and fail to find a | |
| 677 * matching visual, then the next call to SDL_SetVideoMode() | |
| 678 * will segfault, since we no longer point to a dummy surface, | |
| 679 * but rather NULL. | |
| 680 * Sam 11/29/00 | |
| 681 * WARNING, we need to make sure that the previous mode hasn't | |
| 682 * already been freed by the video driver. What do we do in | |
| 683 * that case? Should we call SDL_VideoInit() again? | |
| 684 */ | |
| 685 SDL_VideoSurface = (mode != NULL) ? mode : prev_mode; | |
| 686 | |
| 687 if ( (mode != NULL) && (!is_opengl) ) { | |
| 688 /* Sanity check */ | |
| 689 if ( (mode->w < width) || (mode->h < height) ) { | |
| 690 SDL_SetError("Video mode smaller than requested"); | |
| 691 return(NULL); | |
| 692 } | |
| 693 | |
| 694 /* If we have a palettized surface, create a default palette */ | |
| 695 if ( mode->format->palette ) { | |
|
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696 SDL_PixelFormat *vf = mode->format; |
| 0 | 697 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 698 video->SetColors(this, 0, vf->palette->ncolors, | |
| 699 vf->palette->colors); | |
| 700 } | |
| 701 | |
| 702 /* Clear the surface to black */ | |
| 703 video->offset_x = 0; | |
| 704 video->offset_y = 0; | |
| 705 mode->offset = 0; | |
| 706 SDL_SetClipRect(mode, NULL); | |
| 707 SDL_ClearSurface(mode); | |
| 708 | |
| 709 /* Now adjust the offsets to match the desired mode */ | |
| 710 video->offset_x = (mode->w-width)/2; | |
| 711 video->offset_y = (mode->h-height)/2; | |
| 712 mode->offset = video->offset_y*mode->pitch + | |
| 713 video->offset_x*mode->format->BytesPerPixel; | |
| 714 #ifdef DEBUG_VIDEO | |
| 715 fprintf(stderr, | |
| 716 "Requested mode: %dx%dx%d, obtained mode %dx%dx%d (offset %d)\n", | |
| 717 width, height, bpp, | |
| 718 mode->w, mode->h, mode->format->BitsPerPixel, mode->offset); | |
| 719 #endif | |
| 720 mode->w = width; | |
| 721 mode->h = height; | |
| 722 SDL_SetClipRect(mode, NULL); | |
| 723 } | |
| 724 SDL_ResetCursor(); | |
| 725 SDL_UnlockCursor(); | |
| 726 | |
| 727 /* If we failed setting a video mode, return NULL... (Uh Oh!) */ | |
| 728 if ( mode == NULL ) { | |
| 729 return(NULL); | |
| 730 } | |
| 731 | |
| 732 /* If there is no window manager, set the SDL_NOFRAME flag */ | |
| 733 if ( ! video->info.wm_available ) { | |
| 734 mode->flags |= SDL_NOFRAME; | |
| 735 } | |
| 736 | |
| 737 /* Reset the mouse cursor and grab for new video mode */ | |
| 738 SDL_SetCursor(NULL); | |
| 739 if ( video->UpdateMouse ) { | |
| 740 video->UpdateMouse(this); | |
| 741 } | |
| 742 SDL_WM_GrabInput(saved_grab); | |
| 743 SDL_GetRelativeMouseState(NULL, NULL); /* Clear first large delta */ | |
| 744 | |
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745 #if SDL_VIDEO_OPENGL |
|
650
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746 /* Load GL symbols (before MakeCurrent, where we need glGetString). */ |
|
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747 if ( flags & (SDL_OPENGL | SDL_OPENGLBLIT) ) { |
|
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748 |
|
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749 #if defined(__QNXNTO__) && (_NTO_VERSION < 630) |
|
916
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750 #define __SDL_NOGETPROCADDR__ |
|
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751 #elif defined(__MINT__) |
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752 #define __SDL_NOGETPROCADDR__ |
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753 #endif |
|
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754 #ifdef __SDL_NOGETPROCADDR__ |
|
4ab6d1fd028f
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755 #define SDL_PROC(ret,func,params) video->func=func; |
|
663
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756 #else |
|
910
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757 #define SDL_PROC(ret,func,params) \ |
|
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758 do { \ |
|
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759 video->func = SDL_GL_GetProcAddress(#func); \ |
|
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760 if ( ! video->func ) { \ |
|
1141
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If couldn't load a needed GL symbol in SDL_SetVideoMode(), report it more
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1140
diff
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|
761 SDL_SetError("Couldn't load GL function %s: %s\n", #func, SDL_GetError()); \ |
|
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762 return(NULL); \ |
|
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763 } \ |
|
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|
764 } while ( 0 ); |
|
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765 |
|
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766 #endif /* __SDL_NOGETPROCADDR__ */ |
|
4ab6d1fd028f
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767 |
|
650
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|
768 #include "SDL_glfuncs.h" |
|
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769 #undef SDL_PROC |
|
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770 } |
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771 #endif /* SDL_VIDEO_OPENGL */ |
|
650
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772 |
| 0 | 773 /* If we're running OpenGL, make the context current */ |
| 774 if ( (video->screen->flags & SDL_OPENGL) && | |
| 775 video->GL_MakeCurrent ) { | |
| 776 if ( video->GL_MakeCurrent(this) < 0 ) { | |
| 777 return(NULL); | |
| 778 } | |
| 779 } | |
| 780 | |
| 781 /* Set up a fake SDL surface for OpenGL "blitting" */ | |
| 782 if ( (flags & SDL_OPENGLBLIT) == SDL_OPENGLBLIT ) { | |
| 783 /* Load GL functions for performing the texture updates */ | |
|
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784 #if SDL_VIDEO_OPENGL |
| 0 | 785 |
| 786 /* Create a software surface for blitting */ | |
| 787 #ifdef GL_VERSION_1_2 | |
| 788 /* If the implementation either supports the packed pixels | |
| 789 extension, or implements the core OpenGL 1.2 API, it will | |
| 790 support the GL_UNSIGNED_SHORT_5_6_5 texture format. | |
| 791 */ | |
| 792 if ( (bpp == 16) && | |
|
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793 (SDL_strstr((const char *)video->glGetString(GL_EXTENSIONS), "GL_EXT_packed_pixels") || |
|
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794 (SDL_atof((const char *)video->glGetString(GL_VERSION)) >= 1.2f)) |
|
282
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795 ) { |
| 0 | 796 video->is_32bit = 0; |
| 797 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 798 flags, | |
| 799 width, | |
| 800 height, | |
| 801 16, | |
| 802 31 << 11, | |
| 803 63 << 5, | |
| 804 31, | |
| 805 0 | |
| 806 ); | |
| 807 } | |
| 808 else | |
| 809 #endif /* OpenGL 1.2 */ | |
| 810 { | |
| 811 video->is_32bit = 1; | |
| 812 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 813 flags, | |
| 814 width, | |
| 815 height, | |
| 816 32, | |
| 817 #if SDL_BYTEORDER == SDL_LIL_ENDIAN | |
| 818 0x000000FF, | |
| 819 0x0000FF00, | |
| 820 0x00FF0000, | |
| 821 0xFF000000 | |
| 822 #else | |
| 823 0xFF000000, | |
| 824 0x00FF0000, | |
| 825 0x0000FF00, | |
| 826 0x000000FF | |
| 827 #endif | |
| 828 ); | |
| 829 } | |
| 830 if ( ! SDL_VideoSurface ) { | |
| 831 return(NULL); | |
| 832 } | |
| 833 SDL_VideoSurface->flags = mode->flags | SDL_OPENGLBLIT; | |
| 834 | |
| 835 /* Free the original video mode surface (is this safe?) */ | |
| 836 SDL_FreeSurface(mode); | |
| 837 | |
|
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838 /* Set the surface completely opaque & white by default */ |
|
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|
839 SDL_memset( SDL_VideoSurface->pixels, 255, SDL_VideoSurface->h * SDL_VideoSurface->pitch ); |
| 0 | 840 video->glGenTextures( 1, &video->texture ); |
| 841 video->glBindTexture( GL_TEXTURE_2D, video->texture ); | |
| 842 video->glTexImage2D( | |
| 843 GL_TEXTURE_2D, | |
| 844 0, | |
| 845 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 846 256, | |
| 847 256, | |
| 848 0, | |
| 849 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 850 #ifdef GL_VERSION_1_2 | |
| 851 video->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 852 #else | |
| 853 GL_UNSIGNED_BYTE, | |
| 854 #endif | |
| 855 NULL); | |
| 856 | |
| 857 video->UpdateRects = SDL_GL_UpdateRectsLock; | |
| 858 #else | |
|
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859 SDL_SetError("Somebody forgot to #define SDL_VIDEO_OPENGL"); |
| 0 | 860 return(NULL); |
| 861 #endif | |
| 862 } | |
| 863 | |
| 864 /* Create a shadow surface if necessary */ | |
| 865 /* There are three conditions under which we create a shadow surface: | |
| 866 1. We need a particular bits-per-pixel that we didn't get. | |
| 867 2. We need a hardware palette and didn't get one. | |
| 868 3. We need a software surface and got a hardware surface. | |
| 869 */ | |
| 870 if ( !(SDL_VideoSurface->flags & SDL_OPENGL) && | |
| 871 ( | |
| 872 ( !(flags&SDL_ANYFORMAT) && | |
| 873 (SDL_VideoSurface->format->BitsPerPixel != bpp)) || | |
| 874 ( (flags&SDL_HWPALETTE) && | |
| 875 !(SDL_VideoSurface->flags&SDL_HWPALETTE)) || | |
| 876 /* If the surface is in hardware, video writes are visible | |
| 877 as soon as they are performed, so we need to buffer them | |
| 878 */ | |
| 879 ( ((flags&SDL_HWSURFACE) == SDL_SWSURFACE) && | |
|
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880 (SDL_VideoSurface->flags&SDL_HWSURFACE)) || |
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881 ( (flags&SDL_DOUBLEBUF) && |
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882 (SDL_VideoSurface->flags&SDL_HWSURFACE) && |
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883 !(SDL_VideoSurface->flags&SDL_DOUBLEBUF)) |
| 0 | 884 ) ) { |
| 885 SDL_CreateShadowSurface(bpp); | |
| 886 if ( SDL_ShadowSurface == NULL ) { | |
| 887 SDL_SetError("Couldn't create shadow surface"); | |
| 888 return(NULL); | |
| 889 } | |
| 890 SDL_PublicSurface = SDL_ShadowSurface; | |
| 891 } else { | |
| 892 SDL_PublicSurface = SDL_VideoSurface; | |
| 893 } | |
| 894 video->info.vfmt = SDL_VideoSurface->format; | |
| 895 | |
| 896 /* We're done! */ | |
| 897 return(SDL_PublicSurface); | |
| 898 } | |
| 899 | |
| 900 /* | |
| 901 * Convert a surface into the video pixel format. | |
| 902 */ | |
| 903 SDL_Surface * SDL_DisplayFormat (SDL_Surface *surface) | |
| 904 { | |
| 905 Uint32 flags; | |
| 906 | |
| 907 if ( ! SDL_PublicSurface ) { | |
| 908 SDL_SetError("No video mode has been set"); | |
| 909 return(NULL); | |
| 910 } | |
| 911 /* Set the flags appropriate for copying to display surface */ | |
|
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912 if (((SDL_PublicSurface->flags&SDL_HWSURFACE) == SDL_HWSURFACE) && current_video->info.blit_hw) |
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913 flags = SDL_HWSURFACE; |
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914 else |
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915 flags = SDL_SWSURFACE; |
| 0 | 916 #ifdef AUTORLE_DISPLAYFORMAT |
| 917 flags |= (surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA)); | |
| 918 flags |= SDL_RLEACCELOK; | |
| 919 #else | |
| 920 flags |= surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA|SDL_RLEACCELOK); | |
| 921 #endif | |
| 922 return(SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags)); | |
| 923 } | |
| 924 | |
| 925 /* | |
| 926 * Convert a surface into a format that's suitable for blitting to | |
| 927 * the screen, but including an alpha channel. | |
| 928 */ | |
| 929 SDL_Surface *SDL_DisplayFormatAlpha(SDL_Surface *surface) | |
| 930 { | |
| 931 SDL_PixelFormat *vf; | |
| 932 SDL_PixelFormat *format; | |
| 933 SDL_Surface *converted; | |
| 934 Uint32 flags; | |
| 935 /* default to ARGB8888 */ | |
| 936 Uint32 amask = 0xff000000; | |
| 937 Uint32 rmask = 0x00ff0000; | |
| 938 Uint32 gmask = 0x0000ff00; | |
| 939 Uint32 bmask = 0x000000ff; | |
| 940 | |
| 941 if ( ! SDL_PublicSurface ) { | |
| 942 SDL_SetError("No video mode has been set"); | |
| 943 return(NULL); | |
| 944 } | |
| 945 vf = SDL_PublicSurface->format; | |
| 946 | |
| 947 switch(vf->BytesPerPixel) { | |
| 948 case 2: | |
| 949 /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}. | |
| 950 For anything else (like ARGB4444) it doesn't matter | |
| 951 since we have no special code for it anyway */ | |
| 952 if ( (vf->Rmask == 0x1f) && | |
| 953 (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) { | |
| 954 rmask = 0xff; | |
| 955 bmask = 0xff0000; | |
| 956 } | |
| 957 break; | |
| 958 | |
| 959 case 3: | |
| 960 case 4: | |
| 961 /* Keep the video format, as long as the high 8 bits are | |
| 962 unused or alpha */ | |
| 963 if ( (vf->Rmask == 0xff) && (vf->Bmask == 0xff0000) ) { | |
| 964 rmask = 0xff; | |
| 965 bmask = 0xff0000; | |
| 966 } | |
| 967 break; | |
| 968 | |
| 969 default: | |
| 970 /* We have no other optimised formats right now. When/if a new | |
| 971 optimised alpha format is written, add the converter here */ | |
| 972 break; | |
| 973 } | |
| 974 format = SDL_AllocFormat(32, rmask, gmask, bmask, amask); | |
| 975 flags = SDL_PublicSurface->flags & SDL_HWSURFACE; | |
| 976 flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); | |
| 977 converted = SDL_ConvertSurface(surface, format, flags); | |
| 978 SDL_FreeFormat(format); | |
| 979 return(converted); | |
| 980 } | |
| 981 | |
| 982 /* | |
| 983 * Update a specific portion of the physical screen | |
| 984 */ | |
| 985 void SDL_UpdateRect(SDL_Surface *screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h) | |
| 986 { | |
| 987 if ( screen ) { | |
| 988 SDL_Rect rect; | |
| 989 | |
| 990 /* Perform some checking */ | |
| 991 if ( w == 0 ) | |
| 992 w = screen->w; | |
| 993 if ( h == 0 ) | |
| 994 h = screen->h; | |
| 995 if ( (int)(x+w) > screen->w ) | |
| 996 return; | |
| 997 if ( (int)(y+h) > screen->h ) | |
| 998 return; | |
| 999 | |
| 1000 /* Fill the rectangle */ | |
| 1001 rect.x = x; | |
| 1002 rect.y = y; | |
| 1003 rect.w = w; | |
| 1004 rect.h = h; | |
| 1005 SDL_UpdateRects(screen, 1, &rect); | |
| 1006 } | |
| 1007 } | |
| 1008 void SDL_UpdateRects (SDL_Surface *screen, int numrects, SDL_Rect *rects) | |
| 1009 { | |
| 1010 int i; | |
| 1011 SDL_VideoDevice *video = current_video; | |
| 1012 SDL_VideoDevice *this = current_video; | |
| 1013 | |
| 1014 if ( screen == SDL_ShadowSurface ) { | |
| 1015 /* Blit the shadow surface using saved mapping */ | |
|
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1016 SDL_Palette *pal = screen->format->palette; |
| 0 | 1017 SDL_Color *saved_colors = NULL; |
|
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1018 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1019 /* simulated 8bpp, use correct physical palette */ |
| 1020 saved_colors = pal->colors; | |
| 1021 if ( video->gammacols ) { | |
| 1022 /* gamma-corrected palette */ | |
| 1023 pal->colors = video->gammacols; | |
| 1024 } else if ( video->physpal ) { | |
| 1025 /* physical palette different from logical */ | |
| 1026 pal->colors = video->physpal->colors; | |
| 1027 } | |
| 1028 } | |
| 1029 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { | |
| 1030 SDL_LockCursor(); | |
| 1031 SDL_DrawCursor(SDL_ShadowSurface); | |
| 1032 for ( i=0; i<numrects; ++i ) { | |
| 1033 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1034 SDL_VideoSurface, &rects[i]); | |
| 1035 } | |
| 1036 SDL_EraseCursor(SDL_ShadowSurface); | |
| 1037 SDL_UnlockCursor(); | |
| 1038 } else { | |
| 1039 for ( i=0; i<numrects; ++i ) { | |
| 1040 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1041 SDL_VideoSurface, &rects[i]); | |
| 1042 } | |
| 1043 } | |
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1044 if ( saved_colors ) { |
| 0 | 1045 pal->colors = saved_colors; |
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1046 } |
| 0 | 1047 |
| 1048 /* Fall through to video surface update */ | |
| 1049 screen = SDL_VideoSurface; | |
| 1050 } | |
| 1051 if ( screen == SDL_VideoSurface ) { | |
| 1052 /* Update the video surface */ | |
| 1053 if ( screen->offset ) { | |
| 1054 for ( i=0; i<numrects; ++i ) { | |
| 1055 rects[i].x += video->offset_x; | |
| 1056 rects[i].y += video->offset_y; | |
| 1057 } | |
| 1058 video->UpdateRects(this, numrects, rects); | |
| 1059 for ( i=0; i<numrects; ++i ) { | |
| 1060 rects[i].x -= video->offset_x; | |
| 1061 rects[i].y -= video->offset_y; | |
| 1062 } | |
| 1063 } else { | |
| 1064 video->UpdateRects(this, numrects, rects); | |
| 1065 } | |
| 1066 } | |
| 1067 } | |
| 1068 | |
| 1069 /* | |
| 1070 * Performs hardware double buffering, if possible, or a full update if not. | |
| 1071 */ | |
| 1072 int SDL_Flip(SDL_Surface *screen) | |
| 1073 { | |
| 1074 SDL_VideoDevice *video = current_video; | |
| 1075 /* Copy the shadow surface to the video surface */ | |
| 1076 if ( screen == SDL_ShadowSurface ) { | |
| 1077 SDL_Rect rect; | |
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1078 SDL_Palette *pal = screen->format->palette; |
| 0 | 1079 SDL_Color *saved_colors = NULL; |
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1080 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1081 /* simulated 8bpp, use correct physical palette */ |
| 1082 saved_colors = pal->colors; | |
| 1083 if ( video->gammacols ) { | |
| 1084 /* gamma-corrected palette */ | |
| 1085 pal->colors = video->gammacols; | |
| 1086 } else if ( video->physpal ) { | |
| 1087 /* physical palette different from logical */ | |
| 1088 pal->colors = video->physpal->colors; | |
| 1089 } | |
| 1090 } | |
| 1091 | |
| 1092 rect.x = 0; | |
| 1093 rect.y = 0; | |
| 1094 rect.w = screen->w; | |
| 1095 rect.h = screen->h; | |
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1096 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { |
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1097 SDL_LockCursor(); |
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1098 SDL_DrawCursor(SDL_ShadowSurface); |
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1099 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1100 SDL_VideoSurface, &rect); |
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1101 SDL_EraseCursor(SDL_ShadowSurface); |
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1102 SDL_UnlockCursor(); |
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1103 } else { |
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1104 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1105 SDL_VideoSurface, &rect); |
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1106 } |
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1107 if ( saved_colors ) { |
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1108 pal->colors = saved_colors; |
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1109 } |
| 0 | 1110 |
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1111 /* Fall through to video surface update */ |
| 0 | 1112 screen = SDL_VideoSurface; |
| 1113 } | |
| 1114 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 1115 SDL_VideoDevice *this = current_video; | |
| 1116 return(video->FlipHWSurface(this, SDL_VideoSurface)); | |
| 1117 } else { | |
| 1118 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1119 } | |
| 1120 return(0); | |
| 1121 } | |
| 1122 | |
| 1123 static void SetPalette_logical(SDL_Surface *screen, SDL_Color *colors, | |
| 1124 int firstcolor, int ncolors) | |
| 1125 { | |
|
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1126 SDL_Palette *pal = screen->format->palette; |
| 0 | 1127 SDL_Palette *vidpal; |
| 1128 | |
| 1129 if ( colors != (pal->colors + firstcolor) ) { | |
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1130 SDL_memcpy(pal->colors + firstcolor, colors, |
| 0 | 1131 ncolors * sizeof(*colors)); |
| 1132 } | |
| 1133 | |
| 1134 vidpal = SDL_VideoSurface->format->palette; | |
| 1135 if ( (screen == SDL_ShadowSurface) && vidpal ) { | |
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1136 /* |
| 0 | 1137 * This is a shadow surface, and the physical |
| 1138 * framebuffer is also indexed. Propagate the | |
| 1139 * changes to its logical palette so that | |
| 1140 * updates are always identity blits | |
| 1141 */ | |
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1142 SDL_memcpy(vidpal->colors + firstcolor, colors, |
| 0 | 1143 ncolors * sizeof(*colors)); |
| 1144 } | |
| 1145 SDL_FormatChanged(screen); | |
| 1146 } | |
| 1147 | |
| 1148 static int SetPalette_physical(SDL_Surface *screen, | |
| 1149 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1150 { | |
| 1151 SDL_VideoDevice *video = current_video; | |
| 1152 int gotall = 1; | |
| 1153 | |
| 1154 if ( video->physpal ) { | |
| 1155 /* We need to copy the new colors, since we haven't | |
| 1156 * already done the copy in the logical set above. | |
| 1157 */ | |
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1158 SDL_memcpy(video->physpal->colors + firstcolor, |
| 0 | 1159 colors, ncolors * sizeof(*colors)); |
| 1160 } | |
| 1161 if ( screen == SDL_ShadowSurface ) { | |
| 1162 if ( SDL_VideoSurface->flags & SDL_HWPALETTE ) { | |
| 1163 /* | |
| 1164 * The real screen is also indexed - set its physical | |
| 1165 * palette. The physical palette does not include the | |
| 1166 * gamma modification, we apply it directly instead, | |
| 1167 * but this only happens if we have hardware palette. | |
| 1168 */ | |
| 1169 screen = SDL_VideoSurface; | |
| 1170 } else { | |
| 1171 /* | |
| 1172 * The video surface is not indexed - invalidate any | |
| 1173 * active shadow-to-video blit mappings. | |
| 1174 */ | |
| 1175 if ( screen->map->dst == SDL_VideoSurface ) { | |
| 1176 SDL_InvalidateMap(screen->map); | |
| 1177 } | |
| 1178 if ( video->gamma ) { | |
| 1179 if( ! video->gammacols ) { | |
| 1180 SDL_Palette *pp = video->physpal; | |
| 1181 if(!pp) | |
| 1182 pp = screen->format->palette; | |
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1183 video->gammacols = SDL_malloc(pp->ncolors |
| 0 | 1184 * sizeof(SDL_Color)); |
| 1185 SDL_ApplyGamma(video->gamma, | |
| 1186 pp->colors, | |
| 1187 video->gammacols, | |
| 1188 pp->ncolors); | |
| 1189 } else { | |
| 1190 SDL_ApplyGamma(video->gamma, colors, | |
| 1191 video->gammacols | |
| 1192 + firstcolor, | |
| 1193 ncolors); | |
| 1194 } | |
| 1195 } | |
| 1196 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1197 } | |
| 1198 } | |
| 1199 | |
| 1200 if ( screen == SDL_VideoSurface ) { | |
| 1201 SDL_Color gcolors[256]; | |
| 1202 | |
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1203 if ( video->gamma ) { |
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1204 SDL_ApplyGamma(video->gamma, colors, gcolors, ncolors); |
| 0 | 1205 colors = gcolors; |
| 1206 } | |
| 1207 gotall = video->SetColors(video, firstcolor, ncolors, colors); | |
| 1208 if ( ! gotall ) { | |
| 1209 /* The video flags shouldn't have SDL_HWPALETTE, and | |
| 1210 the video driver is responsible for copying back the | |
| 1211 correct colors into the video surface palette. | |
| 1212 */ | |
| 1213 ; | |
| 1214 } | |
| 1215 SDL_CursorPaletteChanged(); | |
| 1216 } | |
| 1217 return gotall; | |
| 1218 } | |
| 1219 | |
| 1220 /* | |
| 1221 * Set the physical and/or logical colormap of a surface: | |
| 1222 * Only the screen has a physical colormap. It determines what is actually | |
| 1223 * sent to the display. | |
| 1224 * The logical colormap is used to map blits to/from the surface. | |
| 1225 * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL | |
| 1226 * | |
| 1227 * Return nonzero if all colours were set as requested, or 0 otherwise. | |
| 1228 */ | |
| 1229 int SDL_SetPalette(SDL_Surface *screen, int which, | |
| 1230 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1231 { | |
|
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1232 SDL_Palette *pal; |
| 0 | 1233 int gotall; |
| 1234 int palsize; | |
| 1235 | |
| 34 | 1236 if ( ! current_video ) { |
| 1237 return 0; | |
| 1238 } | |
| 0 | 1239 if ( screen != SDL_PublicSurface ) { |
|
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1240 /* only screens have physical palettes */ |
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1241 which &= ~SDL_PHYSPAL; |
| 0 | 1242 } else if( (screen->flags & SDL_HWPALETTE) != SDL_HWPALETTE ) { |
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1243 /* hardware palettes required for split colormaps */ |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1244 which |= SDL_PHYSPAL | SDL_LOGPAL; |
| 0 | 1245 } |
| 1246 | |
| 1247 /* Verify the parameters */ | |
| 1248 pal = screen->format->palette; | |
| 1249 if( !pal ) { | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1250 return 0; /* not a palettized surface */ |
| 0 | 1251 } |
| 1252 gotall = 1; | |
| 1253 palsize = 1 << screen->format->BitsPerPixel; | |
| 1254 if ( ncolors > (palsize - firstcolor) ) { | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1255 ncolors = (palsize - firstcolor); |
| 0 | 1256 gotall = 0; |
| 1257 } | |
| 1258 | |
| 1259 if ( which & SDL_LOGPAL ) { | |
| 1260 /* | |
| 1261 * Logical palette change: The actual screen isn't affected, | |
| 1262 * but the internal colormap is altered so that the | |
| 1263 * interpretation of the pixel values (for blits etc) is | |
| 1264 * changed. | |
| 1265 */ | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1266 SetPalette_logical(screen, colors, firstcolor, ncolors); |
| 0 | 1267 } |
| 1268 if ( which & SDL_PHYSPAL ) { | |
| 1269 SDL_VideoDevice *video = current_video; | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1270 /* |
| 0 | 1271 * Physical palette change: This doesn't affect the |
| 1272 * program's idea of what the screen looks like, but changes | |
| 1273 * its actual appearance. | |
| 1274 */ | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1275 if(!video) |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1276 return gotall; /* video not yet initialized */ |
| 0 | 1277 if(!video->physpal && !(which & SDL_LOGPAL) ) { |
| 1278 /* Lazy physical palette allocation */ | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1279 int size; |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1280 SDL_Palette *pp = SDL_malloc(sizeof(*pp)); |
|
944
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1281 if ( !pp ) { |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1282 return 0; |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1283 } |
| 0 | 1284 current_video->physpal = pp; |
| 1285 pp->ncolors = pal->ncolors; | |
| 1286 size = pp->ncolors * sizeof(SDL_Color); | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1287 pp->colors = SDL_malloc(size); |
|
944
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1288 if ( !pp->colors ) { |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1289 return 0; |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1290 } |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1291 SDL_memcpy(pp->colors, pal->colors, size); |
| 0 | 1292 } |
| 1293 if ( ! SetPalette_physical(screen, | |
| 1294 colors, firstcolor, ncolors) ) { | |
| 1295 gotall = 0; | |
| 1296 } | |
| 1297 } | |
| 1298 return gotall; | |
| 1299 } | |
| 1300 | |
| 1301 int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor, | |
| 1302 int ncolors) | |
| 1303 { | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1304 return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, |
| 0 | 1305 colors, firstcolor, ncolors); |
| 1306 } | |
| 1307 | |
| 1308 /* | |
| 1309 * Clean up the video subsystem | |
| 1310 */ | |
| 1311 void SDL_VideoQuit (void) | |
| 1312 { | |
| 1313 SDL_Surface *ready_to_go; | |
| 1314 | |
| 1315 if ( current_video ) { | |
| 1316 SDL_VideoDevice *video = current_video; | |
| 1317 SDL_VideoDevice *this = current_video; | |
| 1318 | |
| 1319 /* Halt event processing before doing anything else */ | |
| 1320 SDL_StopEventLoop(); | |
| 1321 | |
| 1322 /* Clean up allocated window manager items */ | |
| 1323 if ( SDL_PublicSurface ) { | |
| 1324 SDL_PublicSurface = NULL; | |
| 1325 } | |
| 1326 SDL_CursorQuit(); | |
| 1327 | |
| 1328 /* Just in case... */ | |
| 1329 SDL_WM_GrabInputOff(); | |
| 1330 | |
| 1331 /* Clean up the system video */ | |
| 1332 video->VideoQuit(this); | |
| 1333 | |
| 1334 /* Free any lingering surfaces */ | |
| 1335 ready_to_go = SDL_ShadowSurface; | |
| 1336 SDL_ShadowSurface = NULL; | |
| 1337 SDL_FreeSurface(ready_to_go); | |
| 1338 if ( SDL_VideoSurface != NULL ) { | |
| 1339 ready_to_go = SDL_VideoSurface; | |
| 1340 SDL_VideoSurface = NULL; | |
| 1341 SDL_FreeSurface(ready_to_go); | |
| 1342 } | |
| 1343 SDL_PublicSurface = NULL; | |
| 1344 | |
| 1345 /* Clean up miscellaneous memory */ | |
| 1346 if ( video->physpal ) { | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1347 SDL_free(video->physpal->colors); |
|
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1348 SDL_free(video->physpal); |
| 0 | 1349 video->physpal = NULL; |
| 1350 } | |
| 1351 if ( video->gammacols ) { | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1352 SDL_free(video->gammacols); |
| 0 | 1353 video->gammacols = NULL; |
| 1354 } | |
| 1355 if ( video->gamma ) { | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1356 SDL_free(video->gamma); |
| 0 | 1357 video->gamma = NULL; |
| 1358 } | |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1359 if ( video->wm_title != NULL ) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1360 SDL_free(video->wm_title); |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1361 video->wm_title = NULL; |
| 0 | 1362 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1363 if ( video->wm_icon != NULL ) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1364 SDL_free(video->wm_icon); |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1365 video->wm_icon = NULL; |
| 0 | 1366 } |
| 1367 | |
| 1368 /* Finish cleaning up video subsystem */ | |
| 1369 video->free(this); | |
| 1370 current_video = NULL; | |
| 1371 } | |
| 1372 return; | |
| 1373 } | |
| 1374 | |
| 1375 /* Load the GL driver library */ | |
| 1376 int SDL_GL_LoadLibrary(const char *path) | |
| 1377 { | |
| 1378 SDL_VideoDevice *video = current_video; | |
| 1379 SDL_VideoDevice *this = current_video; | |
| 1380 int retval; | |
| 1381 | |
| 1382 retval = -1; | |
|
423
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
Ryan C. Gordon <icculus@icculus.org>
parents:
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diff
changeset
|
1383 if ( video == NULL ) { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
Ryan C. Gordon <icculus@icculus.org>
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diff
changeset
|
1384 SDL_SetError("Video subsystem has not been initialized"); |
| 0 | 1385 } else { |
|
423
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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parents:
371
diff
changeset
|
1386 if ( video->GL_LoadLibrary ) { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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parents:
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|
1387 retval = video->GL_LoadLibrary(this, path); |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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parents:
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diff
changeset
|
1388 } else { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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diff
changeset
|
1389 SDL_SetError("No dynamic GL support in video driver"); |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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parents:
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diff
changeset
|
1390 } |
| 0 | 1391 } |
| 1392 return(retval); | |
| 1393 } | |
| 1394 | |
| 1395 void *SDL_GL_GetProcAddress(const char* proc) | |
| 1396 { | |
| 1397 SDL_VideoDevice *video = current_video; | |
| 1398 SDL_VideoDevice *this = current_video; | |
| 1399 void *func; | |
| 1400 | |
| 1401 func = NULL; | |
| 1402 if ( video->GL_GetProcAddress ) { | |
| 1403 if ( video->gl_config.driver_loaded ) { | |
| 1404 func = video->GL_GetProcAddress(this, proc); | |
| 1405 } else { | |
| 1406 SDL_SetError("No GL driver has been loaded"); | |
| 1407 } | |
| 1408 } else { | |
| 1409 SDL_SetError("No dynamic GL support in video driver"); | |
| 1410 } | |
| 1411 return func; | |
| 1412 } | |
| 1413 | |
| 1414 /* Set the specified GL attribute for setting up a GL video mode */ | |
| 1415 int SDL_GL_SetAttribute( SDL_GLattr attr, int value ) | |
| 1416 { | |
| 1417 int retval; | |
| 1418 SDL_VideoDevice *video = current_video; | |
| 1419 | |
| 1420 retval = 0; | |
| 1421 switch (attr) { | |
| 1422 case SDL_GL_RED_SIZE: | |
| 1423 video->gl_config.red_size = value; | |
| 1424 break; | |
| 1425 case SDL_GL_GREEN_SIZE: | |
| 1426 video->gl_config.green_size = value; | |
| 1427 break; | |
| 1428 case SDL_GL_BLUE_SIZE: | |
| 1429 video->gl_config.blue_size = value; | |
| 1430 break; | |
| 1431 case SDL_GL_ALPHA_SIZE: | |
| 1432 video->gl_config.alpha_size = value; | |
| 1433 break; | |
| 1434 case SDL_GL_DOUBLEBUFFER: | |
| 1435 video->gl_config.double_buffer = value; | |
| 1436 break; | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1437 case SDL_GL_BUFFER_SIZE: |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1438 video->gl_config.buffer_size = value; |
| 0 | 1439 break; |
| 1440 case SDL_GL_DEPTH_SIZE: | |
| 1441 video->gl_config.depth_size = value; | |
| 1442 break; | |
| 1443 case SDL_GL_STENCIL_SIZE: | |
| 1444 video->gl_config.stencil_size = value; | |
| 1445 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1446 case SDL_GL_ACCUM_RED_SIZE: |
| 0 | 1447 video->gl_config.accum_red_size = value; |
| 1448 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1449 case SDL_GL_ACCUM_GREEN_SIZE: |
| 0 | 1450 video->gl_config.accum_green_size = value; |
| 1451 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1452 case SDL_GL_ACCUM_BLUE_SIZE: |
| 0 | 1453 video->gl_config.accum_blue_size = value; |
| 1454 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1455 case SDL_GL_ACCUM_ALPHA_SIZE: |
| 0 | 1456 video->gl_config.accum_alpha_size = value; |
| 1457 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1458 case SDL_GL_STEREO: |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1459 video->gl_config.stereo = value; |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1460 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
655
diff
changeset
|
1461 case SDL_GL_MULTISAMPLEBUFFERS: |
|
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
655
diff
changeset
|
1462 video->gl_config.multisamplebuffers = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents:
650
diff
changeset
|
1463 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
655
diff
changeset
|
1464 case SDL_GL_MULTISAMPLESAMPLES: |
|
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
655
diff
changeset
|
1465 video->gl_config.multisamplesamples = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents:
650
diff
changeset
|
1466 break; |
| 0 | 1467 default: |
| 1468 SDL_SetError("Unknown OpenGL attribute"); | |
| 1469 retval = -1; | |
| 1470 break; | |
| 1471 } | |
| 1472 return(retval); | |
| 1473 } | |
| 1474 | |
| 1475 /* Retrieve an attribute value from the windowing system. */ | |
| 1476 int SDL_GL_GetAttribute(SDL_GLattr attr, int* value) | |
| 1477 { | |
| 1478 int retval = -1; | |
| 1479 SDL_VideoDevice* video = current_video; | |
| 1480 SDL_VideoDevice* this = current_video; | |
| 1481 | |
| 1482 if ( video->GL_GetAttribute ) { | |
| 1483 retval = this->GL_GetAttribute(this, attr, value); | |
|
11
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1484 } else { |
|
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1485 *value = 0; |
|
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1486 SDL_SetError("GL_GetAttribute not supported"); |
| 0 | 1487 } |
| 1488 return retval; | |
| 1489 } | |
| 1490 | |
| 1491 /* Perform a GL buffer swap on the current GL context */ | |
| 1492 void SDL_GL_SwapBuffers(void) | |
| 1493 { | |
| 1494 SDL_VideoDevice *video = current_video; | |
| 1495 SDL_VideoDevice *this = current_video; | |
| 1496 | |
| 1497 if ( video->screen->flags & SDL_OPENGL ) { | |
|
266
c6abdda2f666
Added QNX cleanups by Mike Gorchak (thanks!)
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252
diff
changeset
|
1498 video->GL_SwapBuffers(this); |
|
c6abdda2f666
Added QNX cleanups by Mike Gorchak (thanks!)
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|
1499 } else { |
|
c6abdda2f666
Added QNX cleanups by Mike Gorchak (thanks!)
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|
1500 SDL_SetError("OpenGL video mode has not been set"); |
| 0 | 1501 } |
| 1502 } | |
| 1503 | |
| 1504 /* Update rects with locking */ | |
| 1505 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect *rects) | |
| 1506 { | |
| 1507 SDL_GL_Lock(); | |
| 1508 SDL_GL_UpdateRects(numrects, rects); | |
| 1509 SDL_GL_Unlock(); | |
| 1510 } | |
| 1511 | |
| 1512 /* Update rects without state setting and changing (the caller is responsible for it) */ | |
| 1513 void SDL_GL_UpdateRects(int numrects, SDL_Rect *rects) | |
| 1514 { | |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
1515 #if SDL_VIDEO_OPENGL |
| 0 | 1516 SDL_VideoDevice *this = current_video; |
| 1517 SDL_Rect update, tmp; | |
| 1518 int x, y, i; | |
| 1519 | |
| 1520 for ( i = 0; i < numrects; i++ ) | |
| 1521 { | |
| 1522 tmp.y = rects[i].y; | |
| 1523 tmp.h = rects[i].h; | |
| 1524 for ( y = 0; y <= rects[i].h / 256; y++ ) | |
| 1525 { | |
| 1526 tmp.x = rects[i].x; | |
| 1527 tmp.w = rects[i].w; | |
| 1528 for ( x = 0; x <= rects[i].w / 256; x++ ) | |
| 1529 { | |
| 1530 update.x = tmp.x; | |
| 1531 update.y = tmp.y; | |
| 1532 update.w = tmp.w; | |
| 1533 update.h = tmp.h; | |
| 1534 | |
| 1535 if ( update.w > 256 ) | |
| 1536 update.w = 256; | |
| 1537 | |
| 1538 if ( update.h > 256 ) | |
| 1539 update.h = 256; | |
| 1540 | |
| 1541 this->glFlush(); | |
| 1542 this->glTexSubImage2D( | |
| 1543 GL_TEXTURE_2D, | |
| 1544 0, | |
| 1545 0, | |
| 1546 0, | |
| 1547 update.w, | |
| 1548 update.h, | |
| 1549 this->is_32bit? GL_RGBA : GL_RGB, | |
| 1550 #ifdef GL_VERSION_1_2 | |
| 1551 this->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 1552 #else | |
| 1553 GL_UNSIGNED_BYTE, | |
| 1554 #endif | |
| 1555 (Uint8 *)this->screen->pixels + | |
| 1556 this->screen->format->BytesPerPixel * update.x + | |
| 1557 update.y * this->screen->pitch ); | |
| 1558 | |
| 1559 this->glFlush(); | |
| 1560 /* | |
| 1561 * Note the parens around the function name: | |
| 1562 * This is because some OpenGL implementations define glTexCoord etc | |
| 1563 * as macros, and we don't want them expanded here. | |
| 1564 */ | |
| 1565 this->glBegin(GL_TRIANGLE_STRIP); | |
| 1566 (this->glTexCoord2f)( 0.0, 0.0 ); | |
| 1567 (this->glVertex2i)( update.x, update.y ); | |
| 1568 (this->glTexCoord2f)( (float)(update.w / 256.0), 0.0 ); | |
| 1569 (this->glVertex2i)( update.x + update.w, update.y ); | |
| 1570 (this->glTexCoord2f)( 0.0, (float)(update.h / 256.0) ); | |
| 1571 (this->glVertex2i)( update.x, update.y + update.h ); | |
| 1572 (this->glTexCoord2f)( (float)(update.w / 256.0), (float)(update.h / 256.0) ); | |
| 1573 (this->glVertex2i)( update.x + update.w , update.y + update.h ); | |
| 1574 this->glEnd(); | |
| 1575 | |
| 1576 tmp.x += 256; | |
| 1577 tmp.w -= 256; | |
| 1578 } | |
| 1579 tmp.y += 256; | |
| 1580 tmp.h -= 256; | |
| 1581 } | |
| 1582 } | |
| 1583 #endif | |
| 1584 } | |
| 1585 | |
| 1586 /* Lock == save current state */ | |
| 1587 void SDL_GL_Lock() | |
| 1588 { | |
|
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1589 #if SDL_VIDEO_OPENGL |
| 0 | 1590 lock_count--; |
| 1591 if (lock_count==-1) | |
| 1592 { | |
| 1593 SDL_VideoDevice *this = current_video; | |
| 1594 | |
| 1595 this->glPushAttrib( GL_ALL_ATTRIB_BITS ); /* TODO: narrow range of what is saved */ | |
|
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1596 #ifdef GL_CLIENT_PIXEL_STORE_BIT |
| 0 | 1597 this->glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT ); |
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1598 #endif |
| 0 | 1599 |
| 1600 this->glEnable(GL_TEXTURE_2D); | |
| 1601 this->glEnable(GL_BLEND); | |
| 1602 this->glDisable(GL_FOG); | |
| 1603 this->glDisable(GL_ALPHA_TEST); | |
| 1604 this->glDisable(GL_DEPTH_TEST); | |
| 1605 this->glDisable(GL_SCISSOR_TEST); | |
| 1606 this->glDisable(GL_STENCIL_TEST); | |
| 1607 this->glDisable(GL_CULL_FACE); | |
| 1608 | |
| 1609 this->glBindTexture( GL_TEXTURE_2D, this->texture ); | |
| 1610 this->glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); | |
| 1611 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); | |
| 1612 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); | |
| 1613 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); | |
| 1614 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT ); | |
| 1615 | |
| 1616 this->glPixelStorei( GL_UNPACK_ROW_LENGTH, this->screen->pitch / this->screen->format->BytesPerPixel ); | |
| 1617 this->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
| 1618 (this->glColor4f)(1.0, 1.0, 1.0, 1.0); /* Solaris workaround */ | |
| 1619 | |
| 1620 this->glViewport(0, 0, this->screen->w, this->screen->h); | |
| 1621 this->glMatrixMode(GL_PROJECTION); | |
| 1622 this->glPushMatrix(); | |
| 1623 this->glLoadIdentity(); | |
| 1624 | |
| 1625 this->glOrtho(0.0, (GLdouble) this->screen->w, (GLdouble) this->screen->h, 0.0, 0.0, 1.0); | |
| 1626 | |
| 1627 this->glMatrixMode(GL_MODELVIEW); | |
| 1628 this->glPushMatrix(); | |
| 1629 this->glLoadIdentity(); | |
| 1630 } | |
| 1631 #endif | |
| 1632 } | |
| 1633 | |
| 1634 /* Unlock == restore saved state */ | |
| 1635 void SDL_GL_Unlock() | |
| 1636 { | |
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1637 #if SDL_VIDEO_OPENGL |
| 0 | 1638 lock_count++; |
| 1639 if (lock_count==0) | |
| 1640 { | |
| 1641 SDL_VideoDevice *this = current_video; | |
| 1642 | |
| 1643 this->glPopMatrix(); | |
| 1644 this->glMatrixMode(GL_PROJECTION); | |
| 1645 this->glPopMatrix(); | |
| 1646 | |
| 1647 this->glPopClientAttrib(); | |
| 1648 this->glPopAttrib(); | |
| 1649 } | |
| 1650 #endif | |
| 1651 } | |
| 1652 | |
| 1653 /* | |
| 1654 * Sets/Gets the title and icon text of the display window, if any. | |
| 1655 */ | |
| 1656 void SDL_WM_SetCaption (const char *title, const char *icon) | |
| 1657 { | |
| 1658 SDL_VideoDevice *video = current_video; | |
| 1659 SDL_VideoDevice *this = current_video; | |
| 1660 | |
|
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1661 if ( video ) { |
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1662 if ( title ) { |
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1663 if ( video->wm_title ) { |
|
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1664 SDL_free(video->wm_title); |
|
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1665 } |
|
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1666 video->wm_title = SDL_strdup(title); |
| 0 | 1667 } |
|
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1668 if ( icon ) { |
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1669 if ( video->wm_icon ) { |
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1670 SDL_free(video->wm_icon); |
|
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1671 } |
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1672 video->wm_icon = SDL_strdup(icon); |
| 0 | 1673 } |
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1674 if ( (title || icon) && (video->SetCaption != NULL) ) { |
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1675 video->SetCaption(this, video->wm_title,video->wm_icon); |
| 0 | 1676 } |
| 1677 } | |
| 1678 } | |
| 1679 void SDL_WM_GetCaption (char **title, char **icon) | |
| 1680 { | |
|
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1681 SDL_VideoDevice *video = current_video; |
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1682 |
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1683 if ( video ) { |
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1684 if ( title ) { |
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1685 *title = video->wm_title; |
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1686 } |
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1687 if ( icon ) { |
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1688 *icon = video->wm_icon; |
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1689 } |
| 0 | 1690 } |
| 1691 } | |
| 1692 | |
|
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1693 /* Utility function used by SDL_WM_SetIcon(); |
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1694 * flags & 1 for color key, flags & 2 for alpha channel. */ |
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1695 static void CreateMaskFromColorKeyOrAlpha(SDL_Surface *icon, Uint8 *mask, int flags) |
| 0 | 1696 { |
| 1697 int x, y; | |
| 1698 Uint32 colorkey; | |
| 1699 #define SET_MASKBIT(icon, x, y, mask) \ | |
| 1700 mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8))) | |
| 1701 | |
| 1702 colorkey = icon->format->colorkey; | |
| 1703 switch (icon->format->BytesPerPixel) { | |
| 1704 case 1: { Uint8 *pixels; | |
| 1705 for ( y=0; y<icon->h; ++y ) { | |
| 1706 pixels = (Uint8 *)icon->pixels + y*icon->pitch; | |
| 1707 for ( x=0; x<icon->w; ++x ) { | |
| 1708 if ( *pixels++ == colorkey ) { | |
| 1709 SET_MASKBIT(icon, x, y, mask); | |
| 1710 } | |
| 1711 } | |
| 1712 } | |
| 1713 } | |
| 1714 break; | |
| 1715 | |
| 1716 case 2: { Uint16 *pixels; | |
| 1717 for ( y=0; y<icon->h; ++y ) { | |
| 1718 pixels = (Uint16 *)icon->pixels + | |
| 1719 y*icon->pitch/2; | |
| 1720 for ( x=0; x<icon->w; ++x ) { | |
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1721 if ( (flags & 1) && *pixels == colorkey ) { |
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1722 SET_MASKBIT(icon, x, y, mask); |
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1723 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1724 SET_MASKBIT(icon, x, y, mask); |
| 1725 } | |
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1726 pixels++; |
| 0 | 1727 } |
| 1728 } | |
| 1729 } | |
| 1730 break; | |
| 1731 | |
| 1732 case 4: { Uint32 *pixels; | |
| 1733 for ( y=0; y<icon->h; ++y ) { | |
| 1734 pixels = (Uint32 *)icon->pixels + | |
| 1735 y*icon->pitch/4; | |
| 1736 for ( x=0; x<icon->w; ++x ) { | |
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1737 if ( (flags & 1) && *pixels == colorkey ) { |
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1738 SET_MASKBIT(icon, x, y, mask); |
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1739 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1740 SET_MASKBIT(icon, x, y, mask); |
| 1741 } | |
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1742 pixels++; |
| 0 | 1743 } |
| 1744 } | |
| 1745 } | |
| 1746 break; | |
| 1747 } | |
| 1748 } | |
| 1749 | |
| 1750 /* | |
| 1751 * Sets the window manager icon for the display window. | |
| 1752 */ | |
| 1753 void SDL_WM_SetIcon (SDL_Surface *icon, Uint8 *mask) | |
| 1754 { | |
| 1755 SDL_VideoDevice *video = current_video; | |
| 1756 SDL_VideoDevice *this = current_video; | |
| 1757 | |
| 1758 if ( icon && video->SetIcon ) { | |
| 1759 /* Generate a mask if necessary, and create the icon! */ | |
| 1760 if ( mask == NULL ) { | |
| 1761 int mask_len = icon->h*(icon->w+7)/8; | |
|
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1762 int flags = 0; |
|
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1763 mask = (Uint8 *)SDL_malloc(mask_len); |
| 0 | 1764 if ( mask == NULL ) { |
| 1765 return; | |
| 1766 } | |
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1767 SDL_memset(mask, ~0, mask_len); |
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1768 if ( icon->flags & SDL_SRCCOLORKEY ) flags |= 1; |
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1769 if ( icon->flags & SDL_SRCALPHA ) flags |= 2; |
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1770 if( flags ) { |
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1771 CreateMaskFromColorKeyOrAlpha(icon, mask, flags); |
| 0 | 1772 } |
| 1773 video->SetIcon(video, icon, mask); | |
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1774 SDL_free(mask); |
| 0 | 1775 } else { |
| 1776 video->SetIcon(this, icon, mask); | |
| 1777 } | |
| 1778 } | |
| 1779 } | |
| 1780 | |
| 1781 /* | |
| 1782 * Grab or ungrab the keyboard and mouse input. | |
| 1783 * This function returns the final grab mode after calling the | |
| 1784 * driver dependent function. | |
| 1785 */ | |
| 1786 static SDL_GrabMode SDL_WM_GrabInputRaw(SDL_GrabMode mode) | |
| 1787 { | |
| 1788 SDL_VideoDevice *video = current_video; | |
| 1789 SDL_VideoDevice *this = current_video; | |
| 1790 | |
| 1791 /* Only do something if we have support for grabs */ | |
| 1792 if ( video->GrabInput == NULL ) { | |
| 1793 return(video->input_grab); | |
| 1794 } | |
| 1795 | |
| 1796 /* If the final grab mode if off, only then do we actually grab */ | |
| 1797 #ifdef DEBUG_GRAB | |
| 1798 printf("SDL_WM_GrabInputRaw(%d) ... ", mode); | |
| 1799 #endif | |
| 1800 if ( mode == SDL_GRAB_OFF ) { | |
| 1801 if ( video->input_grab != SDL_GRAB_OFF ) { | |
| 1802 mode = video->GrabInput(this, mode); | |
| 1803 } | |
| 1804 } else { | |
| 1805 if ( video->input_grab == SDL_GRAB_OFF ) { | |
| 1806 mode = video->GrabInput(this, mode); | |
| 1807 } | |
| 1808 } | |
| 1809 if ( mode != video->input_grab ) { | |
| 1810 video->input_grab = mode; | |
| 1811 if ( video->CheckMouseMode ) { | |
| 1812 video->CheckMouseMode(this); | |
| 1813 } | |
| 1814 } | |
| 1815 #ifdef DEBUG_GRAB | |
| 1816 printf("Final mode %d\n", video->input_grab); | |
| 1817 #endif | |
| 1818 | |
| 1819 /* Return the final grab state */ | |
| 1820 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1821 mode -= SDL_GRAB_FULLSCREEN; | |
| 1822 } | |
| 1823 return(mode); | |
| 1824 } | |
| 1825 SDL_GrabMode SDL_WM_GrabInput(SDL_GrabMode mode) | |
| 1826 { | |
| 1827 SDL_VideoDevice *video = current_video; | |
| 1828 | |
|
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1829 /* If the video isn't initialized yet, we can't do anything */ |
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1830 if ( ! video ) { |
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1831 return SDL_GRAB_OFF; |
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1832 } |
| 0 | 1833 |
| 1834 /* Return the current mode on query */ | |
| 1835 if ( mode == SDL_GRAB_QUERY ) { | |
| 1836 mode = video->input_grab; | |
| 1837 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1838 mode -= SDL_GRAB_FULLSCREEN; | |
| 1839 } | |
| 1840 return(mode); | |
| 1841 } | |
| 1842 | |
| 1843 #ifdef DEBUG_GRAB | |
| 1844 printf("SDL_WM_GrabInput(%d) ... ", mode); | |
| 1845 #endif | |
| 1846 /* If the video surface is fullscreen, we always grab */ | |
| 1847 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1848 mode -= SDL_GRAB_FULLSCREEN; | |
| 1849 } | |
| 1850 if ( SDL_VideoSurface && (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { | |
| 1851 mode += SDL_GRAB_FULLSCREEN; | |
| 1852 } | |
| 1853 return(SDL_WM_GrabInputRaw(mode)); | |
| 1854 } | |
| 1855 static SDL_GrabMode SDL_WM_GrabInputOff(void) | |
| 1856 { | |
| 1857 SDL_GrabMode mode; | |
| 1858 | |
| 1859 /* First query the current grab state */ | |
| 1860 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 1861 | |
| 1862 /* Now explicitly turn off input grab */ | |
| 1863 SDL_WM_GrabInputRaw(SDL_GRAB_OFF); | |
| 1864 | |
| 1865 /* Return the old state */ | |
| 1866 return(mode); | |
| 1867 } | |
| 1868 | |
| 1869 /* | |
| 1870 * Iconify the window in window managed environments. | |
| 1871 * A successful iconification will result in an SDL_APPACTIVE loss event. | |
| 1872 */ | |
| 1873 int SDL_WM_IconifyWindow(void) | |
| 1874 { | |
| 1875 SDL_VideoDevice *video = current_video; | |
| 1876 SDL_VideoDevice *this = current_video; | |
| 1877 int retval; | |
| 1878 | |
| 1879 retval = 0; | |
| 1880 if ( video->IconifyWindow ) { | |
| 1881 retval = video->IconifyWindow(this); | |
| 1882 } | |
| 1883 return(retval); | |
| 1884 } | |
| 1885 | |
| 1886 /* | |
| 1887 * Toggle fullscreen mode | |
| 1888 */ | |
| 1889 int SDL_WM_ToggleFullScreen(SDL_Surface *surface) | |
| 1890 { | |
| 1891 SDL_VideoDevice *video = current_video; | |
| 1892 SDL_VideoDevice *this = current_video; | |
| 1893 int toggled; | |
| 1894 | |
| 1895 toggled = 0; | |
| 1896 if ( SDL_PublicSurface && (surface == SDL_PublicSurface) && | |
| 1897 video->ToggleFullScreen ) { | |
| 1898 if ( surface->flags & SDL_FULLSCREEN ) { | |
| 1899 toggled = video->ToggleFullScreen(this, 0); | |
| 1900 if ( toggled ) { | |
| 1901 SDL_VideoSurface->flags &= ~SDL_FULLSCREEN; | |
| 1902 SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; | |
| 1903 } | |
| 1904 } else { | |
| 1905 toggled = video->ToggleFullScreen(this, 1); | |
| 1906 if ( toggled ) { | |
| 1907 SDL_VideoSurface->flags |= SDL_FULLSCREEN; | |
| 1908 SDL_PublicSurface->flags |= SDL_FULLSCREEN; | |
| 1909 } | |
| 1910 } | |
| 1911 /* Double-check the grab state inside SDL_WM_GrabInput() */ | |
| 1912 if ( toggled ) { | |
| 1913 SDL_WM_GrabInput(video->input_grab); | |
| 1914 } | |
| 1915 } | |
| 1916 return(toggled); | |
| 1917 } | |
| 1918 | |
| 1919 /* | |
| 1920 * Get some platform dependent window manager information | |
| 1921 */ | |
| 1922 int SDL_GetWMInfo (SDL_SysWMinfo *info) | |
| 1923 { | |
| 1924 SDL_VideoDevice *video = current_video; | |
| 1925 SDL_VideoDevice *this = current_video; | |
| 1926 | |
| 1927 if ( video && video->GetWMInfo ) { | |
| 1928 return(video->GetWMInfo(this, info)); | |
| 1929 } else { | |
| 1930 return(0); | |
| 1931 } | |
| 1932 } |