Mercurial > sdl-ios-xcode
annotate src/video/SDL_video.c @ 1654:0a53c90a37f9 SDL-1.3
Updated to 1.3.0, SDL_OPENGLBLIT is no longer supported
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 27 Apr 2006 05:30:05 +0000 |
| parents | 8d9bb0cf2c2a |
| children | 59227394023d |
| 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 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 /* The high-level video driver subsystem */ | |
| 25 | |
| 26 #include "SDL.h" | |
| 27 #include "SDL_sysvideo.h" | |
| 28 #include "SDL_blit.h" | |
| 29 #include "SDL_pixels_c.h" | |
| 30 #include "SDL_cursor_c.h" | |
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31 #include "../events/SDL_sysevents.h" |
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32 #include "../events/SDL_events_c.h" |
| 0 | 33 |
| 34 /* Available video drivers */ | |
| 35 static VideoBootStrap *bootstrap[] = { | |
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36 #if SDL_VIDEO_DRIVER_QUARTZ |
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37 &QZ_bootstrap, |
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38 #endif |
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39 #if SDL_VIDEO_DRIVER_X11 |
| 0 | 40 &X11_bootstrap, |
| 41 #endif | |
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42 #if SDL_VIDEO_DRIVER_DGA |
| 0 | 43 &DGA_bootstrap, |
| 44 #endif | |
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45 #if SDL_VIDEO_DRIVER_NANOX |
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46 &NX_bootstrap, |
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47 #endif |
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48 #if SDL_VIDEO_DRIVER_IPOD |
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49 &iPod_bootstrap, |
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50 #endif |
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51 #if SDL_VIDEO_DRIVER_QTOPIA |
| 567 | 52 &Qtopia_bootstrap, |
| 53 #endif | |
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54 #if SDL_VIDEO_DRIVER_WSCONS |
| 1187 | 55 &WSCONS_bootstrap, |
| 56 #endif | |
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57 #if SDL_VIDEO_DRIVER_FBCON |
| 0 | 58 &FBCON_bootstrap, |
| 59 #endif | |
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60 #if SDL_VIDEO_DRIVER_DIRECTFB |
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61 &DirectFB_bootstrap, |
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62 #endif |
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63 #if SDL_VIDEO_DRIVER_PS2GS |
| 0 | 64 &PS2GS_bootstrap, |
| 65 #endif | |
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66 #if SDL_VIDEO_DRIVER_GGI |
| 0 | 67 &GGI_bootstrap, |
| 68 #endif | |
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69 #if SDL_VIDEO_DRIVER_VGL |
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70 &VGL_bootstrap, |
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71 #endif |
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72 #if SDL_VIDEO_DRIVER_SVGALIB |
| 0 | 73 &SVGALIB_bootstrap, |
| 74 #endif | |
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75 #if SDL_VIDEO_DRIVER_GAPI |
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76 &GAPI_bootstrap, |
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77 #endif |
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78 #if SDL_VIDEO_DRIVER_WINDIB |
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79 &WINDIB_bootstrap, |
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80 #endif |
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81 #if SDL_VIDEO_DRIVER_DDRAW |
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82 &DIRECTX_bootstrap, |
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83 #endif |
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84 #if SDL_VIDEO_DRIVER_BWINDOW |
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85 &BWINDOW_bootstrap, |
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86 #endif |
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87 #if SDL_VIDEO_DRIVER_TOOLBOX |
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88 &TOOLBOX_bootstrap, |
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89 #endif |
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90 #if SDL_VIDEO_DRIVER_DRAWSPROCKET |
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91 &DSp_bootstrap, |
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92 #endif |
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93 #if SDL_VIDEO_DRIVER_CYBERGRAPHICS |
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94 &CGX_bootstrap, |
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95 #endif |
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96 #if SDL_VIDEO_DRIVER_PHOTON |
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97 &ph_bootstrap, |
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98 #endif |
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99 #if SDL_VIDEO_DRIVER_EPOC |
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100 &EPOC_bootstrap, |
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101 #endif |
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102 #if SDL_VIDEO_DRIVER_XBIOS |
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103 &XBIOS_bootstrap, |
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104 #endif |
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105 #if SDL_VIDEO_DRIVER_GEM |
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106 &GEM_bootstrap, |
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107 #endif |
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108 #if SDL_VIDEO_DRIVER_PICOGUI |
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109 &PG_bootstrap, |
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110 #endif |
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111 #if SDL_VIDEO_DRIVER_DC |
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112 &DC_bootstrap, |
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113 #endif |
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114 #if SDL_VIDEO_DRIVER_RISCOS |
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115 &RISCOS_bootstrap, |
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116 #endif |
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117 #if SDL_VIDEO_DRIVER_OS2FS |
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118 &OS2FSLib_bootstrap, |
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119 #endif |
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120 #if SDL_VIDEO_DRIVER_AALIB |
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121 &AALIB_bootstrap, |
| 0 | 122 #endif |
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123 #if SDL_VIDEO_DRIVER_DUMMY |
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124 &DUMMY_bootstrap, |
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125 #endif |
| 0 | 126 NULL |
| 127 }; | |
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128 |
| 0 | 129 SDL_VideoDevice *current_video = NULL; |
| 130 | |
| 131 /* Various local functions */ | |
| 132 int SDL_VideoInit(const char *driver_name, Uint32 flags); | |
| 133 void SDL_VideoQuit(void); | |
| 134 | |
| 135 static SDL_GrabMode SDL_WM_GrabInputOff(void); | |
| 136 | |
| 137 | |
| 138 /* | |
| 139 * Initialize the video and event subsystems -- determine native pixel format | |
| 140 */ | |
| 141 int SDL_VideoInit (const char *driver_name, Uint32 flags) | |
| 142 { | |
| 143 SDL_VideoDevice *video; | |
| 144 int index; | |
| 145 int i; | |
| 146 SDL_PixelFormat vformat; | |
| 147 Uint32 video_flags; | |
| 148 | |
| 149 /* Toggle the event thread flags, based on OS requirements */ | |
| 150 #if defined(MUST_THREAD_EVENTS) | |
| 151 flags |= SDL_INIT_EVENTTHREAD; | |
| 152 #elif defined(CANT_THREAD_EVENTS) | |
| 153 if ( (flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD ) { | |
| 154 SDL_SetError("OS doesn't support threaded events"); | |
| 155 return(-1); | |
| 156 } | |
| 157 #endif | |
| 158 | |
| 159 /* Check to make sure we don't overwrite 'current_video' */ | |
| 160 if ( current_video != NULL ) { | |
| 161 SDL_VideoQuit(); | |
| 162 } | |
| 163 | |
| 164 /* Select the proper video driver */ | |
| 165 index = 0; | |
| 166 video = NULL; | |
| 167 if ( driver_name != NULL ) { | |
| 168 #if 0 /* This will be replaced with a better driver selection API */ | |
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169 if ( SDL_strrchr(driver_name, ':') != NULL ) { |
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170 index = atoi(SDL_strrchr(driver_name, ':')+1); |
| 0 | 171 } |
| 172 #endif | |
| 173 for ( i=0; bootstrap[i]; ++i ) { | |
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174 if ( SDL_strncmp(bootstrap[i]->name, driver_name, |
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175 SDL_strlen(bootstrap[i]->name)) == 0 ) { |
| 0 | 176 if ( bootstrap[i]->available() ) { |
| 177 video = bootstrap[i]->create(index); | |
| 178 break; | |
| 179 } | |
| 180 } | |
| 181 } | |
| 182 } else { | |
| 183 for ( i=0; bootstrap[i]; ++i ) { | |
| 184 if ( bootstrap[i]->available() ) { | |
| 185 video = bootstrap[i]->create(index); | |
| 186 if ( video != NULL ) { | |
| 187 break; | |
| 188 } | |
| 189 } | |
| 190 } | |
| 191 } | |
| 192 if ( video == NULL ) { | |
| 193 SDL_SetError("No available video device"); | |
| 194 return(-1); | |
| 195 } | |
| 196 current_video = video; | |
| 197 current_video->name = bootstrap[i]->name; | |
| 198 | |
| 199 /* Do some basic variable initialization */ | |
| 200 video->screen = NULL; | |
| 201 video->shadow = NULL; | |
| 202 video->visible = NULL; | |
| 203 video->physpal = NULL; | |
| 204 video->gammacols = NULL; | |
| 205 video->gamma = NULL; | |
| 206 video->wm_title = NULL; | |
| 207 video->wm_icon = NULL; | |
| 208 video->offset_x = 0; | |
| 209 video->offset_y = 0; | |
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210 SDL_memset(&video->info, 0, (sizeof video->info)); |
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211 |
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212 video->displayformatalphapixel = NULL; |
| 0 | 213 |
| 214 /* Set some very sane GL defaults */ | |
| 215 video->gl_config.driver_loaded = 0; | |
| 216 video->gl_config.dll_handle = NULL; | |
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217 video->gl_config.red_size = 3; |
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218 video->gl_config.green_size = 3; |
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219 video->gl_config.blue_size = 2; |
| 0 | 220 video->gl_config.alpha_size = 0; |
| 221 video->gl_config.buffer_size = 0; | |
| 222 video->gl_config.depth_size = 16; | |
| 223 video->gl_config.stencil_size = 0; | |
| 224 video->gl_config.double_buffer = 1; | |
| 225 video->gl_config.accum_red_size = 0; | |
| 226 video->gl_config.accum_green_size = 0; | |
| 227 video->gl_config.accum_blue_size = 0; | |
| 228 video->gl_config.accum_alpha_size = 0; | |
|
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229 video->gl_config.stereo = 0; |
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230 video->gl_config.multisamplebuffers = 0; |
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231 video->gl_config.multisamplesamples = 0; |
| 0 | 232 |
| 233 /* Initialize the video subsystem */ | |
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234 SDL_memset(&vformat, 0, sizeof(vformat)); |
| 0 | 235 if ( video->VideoInit(video, &vformat) < 0 ) { |
| 236 SDL_VideoQuit(); | |
| 237 return(-1); | |
| 238 } | |
| 239 | |
| 240 /* Create a zero sized video surface of the appropriate format */ | |
| 241 video_flags = SDL_SWSURFACE; | |
| 242 SDL_VideoSurface = SDL_CreateRGBSurface(video_flags, 0, 0, | |
| 243 vformat.BitsPerPixel, | |
| 244 vformat.Rmask, vformat.Gmask, vformat.Bmask, 0); | |
| 245 if ( SDL_VideoSurface == NULL ) { | |
| 246 SDL_VideoQuit(); | |
| 247 return(-1); | |
| 248 } | |
| 249 SDL_PublicSurface = NULL; /* Until SDL_SetVideoMode() */ | |
| 250 | |
| 251 #if 0 /* Don't change the current palette - may be used by other programs. | |
| 252 * The application can't do anything with the display surface until | |
| 253 * a video mode has been set anyway. :) | |
| 254 */ | |
| 255 /* If we have a palettized surface, create a default palette */ | |
| 256 if ( SDL_VideoSurface->format->palette ) { | |
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257 SDL_PixelFormat *vf = SDL_VideoSurface->format; |
| 0 | 258 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 259 video->SetColors(video, | |
| 260 0, vf->palette->ncolors, vf->palette->colors); | |
| 261 } | |
| 262 #endif | |
| 263 video->info.vfmt = SDL_VideoSurface->format; | |
| 264 | |
| 265 /* Start the event loop */ | |
| 266 if ( SDL_StartEventLoop(flags) < 0 ) { | |
| 267 SDL_VideoQuit(); | |
| 268 return(-1); | |
| 269 } | |
| 270 SDL_CursorInit(flags & SDL_INIT_EVENTTHREAD); | |
| 271 | |
| 272 /* We're ready to go! */ | |
| 273 return(0); | |
| 274 } | |
| 275 | |
| 276 char *SDL_VideoDriverName(char *namebuf, int maxlen) | |
| 277 { | |
| 278 if ( current_video != NULL ) { | |
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279 SDL_strlcpy(namebuf, current_video->name, maxlen); |
| 0 | 280 return(namebuf); |
| 281 } | |
| 282 return(NULL); | |
| 283 } | |
| 284 | |
| 285 /* | |
| 286 * Get the current display surface | |
| 287 */ | |
| 288 SDL_Surface *SDL_GetVideoSurface(void) | |
| 289 { | |
| 290 SDL_Surface *visible; | |
| 291 | |
| 292 visible = NULL; | |
| 293 if ( current_video ) { | |
| 294 visible = current_video->visible; | |
| 295 } | |
| 296 return(visible); | |
| 297 } | |
| 298 | |
| 299 /* | |
| 300 * Get the current information about the video hardware | |
| 301 */ | |
| 302 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
| 303 { | |
| 304 const SDL_VideoInfo *info; | |
| 305 | |
| 306 info = NULL; | |
| 307 if ( current_video ) { | |
| 308 info = ¤t_video->info; | |
| 309 } | |
| 310 return(info); | |
| 311 } | |
| 312 | |
| 313 /* | |
| 314 * Return a pointer to an array of available screen dimensions for the | |
| 315 * given format, sorted largest to smallest. Returns NULL if there are | |
| 316 * no dimensions available for a particular format, or (SDL_Rect **)-1 | |
| 317 * if any dimension is okay for the given format. If 'format' is NULL, | |
| 318 * the mode list will be for the format given by SDL_GetVideoInfo()->vfmt | |
| 319 */ | |
| 320 SDL_Rect ** SDL_ListModes (SDL_PixelFormat *format, Uint32 flags) | |
| 321 { | |
| 322 SDL_VideoDevice *video = current_video; | |
| 323 SDL_VideoDevice *this = current_video; | |
| 324 SDL_Rect **modes; | |
| 325 | |
| 326 modes = NULL; | |
| 327 if ( SDL_VideoSurface ) { | |
| 328 if ( format == NULL ) { | |
| 329 format = SDL_VideoSurface->format; | |
| 330 } | |
| 331 modes = video->ListModes(this, format, flags); | |
| 332 } | |
| 333 return(modes); | |
| 334 } | |
| 335 | |
| 336 /* | |
| 337 * Check to see if a particular video mode is supported. | |
| 338 * It returns 0 if the requested mode is not supported under any bit depth, | |
| 339 * or returns the bits-per-pixel of the closest available mode with the | |
| 340 * given width and height. If this bits-per-pixel is different from the | |
| 341 * one used when setting the video mode, SDL_SetVideoMode() will succeed, | |
| 342 * but will emulate the requested bits-per-pixel with a shadow surface. | |
| 343 */ | |
| 344 static Uint8 SDL_closest_depths[4][8] = { | |
| 345 /* 8 bit closest depth ordering */ | |
| 346 { 0, 8, 16, 15, 32, 24, 0, 0 }, | |
| 347 /* 15,16 bit closest depth ordering */ | |
| 348 { 0, 16, 15, 32, 24, 8, 0, 0 }, | |
| 349 /* 24 bit closest depth ordering */ | |
| 350 { 0, 24, 32, 16, 15, 8, 0, 0 }, | |
| 351 /* 32 bit closest depth ordering */ | |
| 352 { 0, 32, 16, 15, 24, 8, 0, 0 } | |
| 353 }; | |
| 354 | |
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355 |
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356 #ifdef __MACOS__ /* MPW optimization bug? */ |
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357 #define NEGATIVE_ONE 0xFFFFFFFF |
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358 #else |
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359 #define NEGATIVE_ONE -1 |
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360 #endif |
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361 |
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362 int SDL_VideoModeOK (int width, int height, int bpp, Uint32 flags) |
| 0 | 363 { |
| 364 int table, b, i; | |
| 365 int supported; | |
| 366 SDL_PixelFormat format; | |
| 367 SDL_Rect **sizes; | |
| 368 | |
| 369 /* Currently 1 and 4 bpp are not supported */ | |
| 370 if ( bpp < 8 || bpp > 32 ) { | |
| 371 return(0); | |
| 372 } | |
|
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373 if ( (width <= 0) || (height <= 0) ) { |
| 0 | 374 return(0); |
| 375 } | |
| 376 | |
| 377 /* Search through the list valid of modes */ | |
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378 SDL_memset(&format, 0, sizeof(format)); |
| 0 | 379 supported = 0; |
| 380 table = ((bpp+7)/8)-1; | |
| 381 SDL_closest_depths[table][0] = bpp; | |
| 382 SDL_closest_depths[table][7] = 0; | |
| 383 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 384 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 385 sizes = SDL_ListModes(&format, flags); | |
| 386 if ( sizes == (SDL_Rect **)0 ) { | |
| 387 /* No sizes supported at this bit-depth */ | |
| 388 continue; | |
| 389 } else | |
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390 if (sizes == (SDL_Rect **)NEGATIVE_ONE) { |
| 0 | 391 /* Any size supported at this bit-depth */ |
| 392 supported = 1; | |
| 393 continue; | |
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394 } else if (current_video->handles_any_size) { |
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395 /* Driver can center a smaller surface to simulate fullscreen */ |
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396 for ( i=0; sizes[i]; ++i ) { |
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397 if ((sizes[i]->w >= width) && (sizes[i]->h >= height)) { |
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398 supported = 1; /* this mode can fit the centered window. */ |
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399 break; |
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400 } |
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401 } |
| 0 | 402 } else |
| 403 for ( i=0; sizes[i]; ++i ) { | |
| 404 if ((sizes[i]->w == width) && (sizes[i]->h == height)) { | |
| 405 supported = 1; | |
| 406 break; | |
| 407 } | |
| 408 } | |
| 409 } | |
| 410 if ( supported ) { | |
| 411 --b; | |
| 412 return(SDL_closest_depths[table][b]); | |
| 413 } else { | |
| 414 return(0); | |
| 415 } | |
| 416 } | |
| 417 | |
| 418 /* | |
| 419 * Get the closest non-emulated video mode to the one requested | |
| 420 */ | |
| 421 static int SDL_GetVideoMode (int *w, int *h, int *BitsPerPixel, Uint32 flags) | |
| 422 { | |
| 423 int table, b, i; | |
| 424 int supported; | |
| 425 int native_bpp; | |
| 426 SDL_PixelFormat format; | |
| 427 SDL_Rect **sizes; | |
| 428 | |
|
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Fixed crash with invalid bpp in SDL_SetVideoMode()
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429 /* Check parameters */ |
|
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430 if ( *BitsPerPixel < 8 || *BitsPerPixel > 32 ) { |
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431 SDL_SetError("Invalid bits per pixel (range is {8...32})"); |
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432 return(0); |
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433 } |
|
430
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434 if ((*w <= 0) || (*h <= 0)) { |
|
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435 SDL_SetError("Invalid width or height"); |
|
430
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436 return(0); |
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437 } |
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438 |
| 0 | 439 /* Try the original video mode, get the closest depth */ |
| 440 native_bpp = SDL_VideoModeOK(*w, *h, *BitsPerPixel, flags); | |
| 441 if ( native_bpp == *BitsPerPixel ) { | |
| 442 return(1); | |
| 443 } | |
| 444 if ( native_bpp > 0 ) { | |
| 445 *BitsPerPixel = native_bpp; | |
| 446 return(1); | |
| 447 } | |
| 448 | |
| 449 /* No exact size match at any depth, look for closest match */ | |
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450 SDL_memset(&format, 0, sizeof(format)); |
| 0 | 451 supported = 0; |
| 452 table = ((*BitsPerPixel+7)/8)-1; | |
| 453 SDL_closest_depths[table][0] = *BitsPerPixel; | |
| 454 SDL_closest_depths[table][7] = SDL_VideoSurface->format->BitsPerPixel; | |
| 455 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
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456 int best; |
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457 |
| 0 | 458 format.BitsPerPixel = SDL_closest_depths[table][b]; |
| 459 sizes = SDL_ListModes(&format, flags); | |
| 460 if ( sizes == (SDL_Rect **)0 ) { | |
| 461 /* No sizes supported at this bit-depth */ | |
| 462 continue; | |
| 463 } | |
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464 best=0; |
| 0 | 465 for ( i=0; sizes[i]; ++i ) { |
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466 /* Mode with both dimensions bigger or equal than asked ? */ |
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467 if ((sizes[i]->w >= *w) && (sizes[i]->h >= *h)) { |
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468 /* Mode with any dimension smaller or equal than current best ? */ |
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469 if ((sizes[i]->w <= sizes[best]->w) || (sizes[i]->h <= sizes[best]->h)) { |
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470 /* Now choose the mode that has less pixels */ |
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471 if ((sizes[i]->w * sizes[i]->h) <= (sizes[best]->w * sizes[best]->h)) { |
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472 best=i; |
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473 supported = 1; |
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474 } |
| 0 | 475 } |
| 476 } | |
| 477 } | |
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478 if (supported) { |
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479 *w=sizes[best]->w; |
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480 *h=sizes[best]->h; |
| 0 | 481 *BitsPerPixel = SDL_closest_depths[table][b]; |
| 482 } | |
| 483 } | |
| 484 if ( ! supported ) { | |
| 485 SDL_SetError("No video mode large enough for %dx%d", *w, *h); | |
| 486 } | |
| 487 return(supported); | |
| 488 } | |
| 489 | |
| 490 /* This should probably go somewhere else -- like SDL_surface.c */ | |
| 491 static void SDL_ClearSurface(SDL_Surface *surface) | |
| 492 { | |
| 493 Uint32 black; | |
| 494 | |
| 495 black = SDL_MapRGB(surface->format, 0, 0, 0); | |
| 496 SDL_FillRect(surface, NULL, black); | |
| 497 if ((surface->flags&SDL_HWSURFACE) && (surface->flags&SDL_DOUBLEBUF)) { | |
| 498 SDL_Flip(surface); | |
| 499 SDL_FillRect(surface, NULL, black); | |
| 500 } | |
| 501 SDL_Flip(surface); | |
| 502 } | |
| 503 | |
| 504 /* | |
| 505 * Create a shadow surface suitable for fooling the app. :-) | |
| 506 */ | |
| 507 static void SDL_CreateShadowSurface(int depth) | |
| 508 { | |
| 509 Uint32 Rmask, Gmask, Bmask; | |
| 510 | |
| 511 /* Allocate the shadow surface */ | |
| 512 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 513 Rmask = (SDL_VideoSurface->format)->Rmask; | |
| 514 Gmask = (SDL_VideoSurface->format)->Gmask; | |
| 515 Bmask = (SDL_VideoSurface->format)->Bmask; | |
| 516 } else { | |
| 517 Rmask = Gmask = Bmask = 0; | |
| 518 } | |
| 519 SDL_ShadowSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
| 520 SDL_VideoSurface->w, SDL_VideoSurface->h, | |
| 521 depth, Rmask, Gmask, Bmask, 0); | |
| 522 if ( SDL_ShadowSurface == NULL ) { | |
| 523 return; | |
| 524 } | |
| 525 | |
| 526 /* 8-bit shadow surfaces report that they have exclusive palette */ | |
| 527 if ( SDL_ShadowSurface->format->palette ) { | |
| 528 SDL_ShadowSurface->flags |= SDL_HWPALETTE; | |
| 529 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
|
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530 SDL_memcpy(SDL_ShadowSurface->format->palette->colors, |
| 0 | 531 SDL_VideoSurface->format->palette->colors, |
| 532 SDL_VideoSurface->format->palette->ncolors* | |
| 533 sizeof(SDL_Color)); | |
| 534 } else { | |
| 535 SDL_DitherColors( | |
| 536 SDL_ShadowSurface->format->palette->colors, depth); | |
| 537 } | |
| 538 } | |
| 539 | |
| 540 /* If the video surface is resizable, the shadow should say so */ | |
| 541 if ( (SDL_VideoSurface->flags & SDL_RESIZABLE) == SDL_RESIZABLE ) { | |
| 542 SDL_ShadowSurface->flags |= SDL_RESIZABLE; | |
| 543 } | |
| 544 /* If the video surface has no frame, the shadow should say so */ | |
| 545 if ( (SDL_VideoSurface->flags & SDL_NOFRAME) == SDL_NOFRAME ) { | |
| 546 SDL_ShadowSurface->flags |= SDL_NOFRAME; | |
| 547 } | |
| 548 /* If the video surface is fullscreen, the shadow should say so */ | |
| 549 if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 550 SDL_ShadowSurface->flags |= SDL_FULLSCREEN; | |
| 551 } | |
| 552 /* If the video surface is flippable, the shadow should say so */ | |
| 553 if ( (SDL_VideoSurface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 554 SDL_ShadowSurface->flags |= SDL_DOUBLEBUF; | |
| 555 } | |
| 556 return; | |
| 557 } | |
| 558 | |
|
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559 #ifdef __QNXNTO__ |
|
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560 #include <sys/neutrino.h> |
|
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561 #endif /* __QNXNTO__ */ |
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562 |
| 0 | 563 /* |
| 564 * Set the requested video mode, allocating a shadow buffer if necessary. | |
| 565 */ | |
| 566 SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags) | |
| 567 { | |
| 568 SDL_VideoDevice *video, *this; | |
| 569 SDL_Surface *prev_mode, *mode; | |
| 570 int video_w; | |
| 571 int video_h; | |
| 572 int video_bpp; | |
| 573 int is_opengl; | |
| 574 SDL_GrabMode saved_grab; | |
| 575 | |
|
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576 /* Handle obsolete flags */ |
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577 if ( (flags & SDL_OPENGLBLIT_OBSOLETE) == SDL_OPENGLBLIT_OBSOLETE ) { |
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578 SDL_SetError("SDL_OPENGLBLIT is no longer supported"); |
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579 return(NULL); |
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580 } |
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581 |
| 0 | 582 /* Start up the video driver, if necessary.. |
| 583 WARNING: This is the only function protected this way! | |
| 584 */ | |
| 585 if ( ! current_video ) { | |
| 586 if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE) < 0 ) { | |
| 587 return(NULL); | |
| 588 } | |
| 589 } | |
| 590 this = video = current_video; | |
| 591 | |
|
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Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
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592 /* Default to the current width and height */ |
|
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Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
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593 if ( width == 0 ) { |
|
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Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
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594 width = video->info.current_w; |
|
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Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
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595 } |
|
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Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
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596 if ( height == 0 ) { |
|
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Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
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597 height = video->info.current_h; |
|
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Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
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598 } |
| 0 | 599 /* Default to the current video bpp */ |
| 600 if ( bpp == 0 ) { | |
| 601 flags |= SDL_ANYFORMAT; | |
| 602 bpp = SDL_VideoSurface->format->BitsPerPixel; | |
| 603 } | |
| 604 | |
| 605 /* Get a good video mode, the closest one possible */ | |
| 606 video_w = width; | |
| 607 video_h = height; | |
| 608 video_bpp = bpp; | |
| 609 if ( ! SDL_GetVideoMode(&video_w, &video_h, &video_bpp, flags) ) { | |
| 610 return(NULL); | |
| 611 } | |
| 612 | |
| 613 /* Check the requested flags */ | |
| 614 /* There's no palette in > 8 bits-per-pixel mode */ | |
| 615 if ( video_bpp > 8 ) { | |
| 616 flags &= ~SDL_HWPALETTE; | |
| 617 } | |
| 618 #if 0 | |
| 619 if ( (flags&SDL_FULLSCREEN) != SDL_FULLSCREEN ) { | |
| 620 /* There's no windowed double-buffering */ | |
| 621 flags &= ~SDL_DOUBLEBUF; | |
| 622 } | |
| 623 #endif | |
| 624 if ( (flags&SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 625 /* Use hardware surfaces when double-buffering */ | |
| 626 flags |= SDL_HWSURFACE; | |
| 627 } | |
| 628 | |
| 629 is_opengl = ( ( flags & SDL_OPENGL ) == SDL_OPENGL ); | |
| 630 if ( is_opengl ) { | |
| 631 /* These flags are for 2D video modes only */ | |
| 632 flags &= ~(SDL_HWSURFACE|SDL_DOUBLEBUF); | |
| 633 } | |
| 634 | |
|
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635 /* Reset the keyboard here so event callbacks can run */ |
|
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Fixed stuck keys when changing the video mode
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636 SDL_ResetKeyboard(); |
|
460
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Reset mouse state when changing video modes
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637 SDL_ResetMouse(); |
| 1296 | 638 SDL_cursorstate &= ~CURSOR_USINGSW; |
|
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639 |
| 0 | 640 /* Clean up any previous video mode */ |
| 641 if ( SDL_PublicSurface != NULL ) { | |
| 642 SDL_PublicSurface = NULL; | |
| 643 } | |
| 644 if ( SDL_ShadowSurface != NULL ) { | |
| 645 SDL_Surface *ready_to_go; | |
| 646 ready_to_go = SDL_ShadowSurface; | |
| 647 SDL_ShadowSurface = NULL; | |
| 648 SDL_FreeSurface(ready_to_go); | |
| 649 } | |
| 650 if ( video->physpal ) { | |
|
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651 SDL_free(video->physpal->colors); |
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652 SDL_free(video->physpal); |
| 0 | 653 video->physpal = NULL; |
| 654 } | |
| 655 if( video->gammacols) { | |
|
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656 SDL_free(video->gammacols); |
| 0 | 657 video->gammacols = NULL; |
| 658 } | |
| 659 | |
| 660 /* Save the previous grab state and turn off grab for mode switch */ | |
| 661 saved_grab = SDL_WM_GrabInputOff(); | |
| 662 | |
| 663 /* Try to set the video mode, along with offset and clipping */ | |
| 664 prev_mode = SDL_VideoSurface; | |
| 665 SDL_LockCursor(); | |
| 666 SDL_VideoSurface = NULL; /* In case it's freed by driver */ | |
| 667 mode = video->SetVideoMode(this, prev_mode,video_w,video_h,video_bpp,flags); | |
| 668 if ( mode ) { /* Prevent resize events from mode change */ | |
| 1190 | 669 /* But not on OS/2 */ |
| 670 #ifndef __OS2__ | |
| 0 | 671 SDL_PrivateResize(mode->w, mode->h); |
| 1190 | 672 #endif |
|
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673 |
|
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Fix a crash if an OpenGL video mode can't be set.
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674 /* Sam - If we asked for OpenGL mode, and didn't get it, fail */ |
|
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675 if ( is_opengl && !(mode->flags & SDL_OPENGL) ) { |
|
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676 mode = NULL; |
|
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677 SDL_SetError("OpenGL not available"); |
|
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678 } |
|
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679 } |
| 0 | 680 /* |
| 681 * rcg11292000 | |
| 682 * If you try to set an SDL_OPENGL surface, and fail to find a | |
| 683 * matching visual, then the next call to SDL_SetVideoMode() | |
| 684 * will segfault, since we no longer point to a dummy surface, | |
| 685 * but rather NULL. | |
| 686 * Sam 11/29/00 | |
| 687 * WARNING, we need to make sure that the previous mode hasn't | |
| 688 * already been freed by the video driver. What do we do in | |
| 689 * that case? Should we call SDL_VideoInit() again? | |
| 690 */ | |
| 691 SDL_VideoSurface = (mode != NULL) ? mode : prev_mode; | |
| 692 | |
| 693 if ( (mode != NULL) && (!is_opengl) ) { | |
| 694 /* Sanity check */ | |
| 695 if ( (mode->w < width) || (mode->h < height) ) { | |
| 696 SDL_SetError("Video mode smaller than requested"); | |
| 697 return(NULL); | |
| 698 } | |
| 699 | |
| 700 /* If we have a palettized surface, create a default palette */ | |
| 701 if ( mode->format->palette ) { | |
|
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702 SDL_PixelFormat *vf = mode->format; |
| 0 | 703 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 704 video->SetColors(this, 0, vf->palette->ncolors, | |
| 705 vf->palette->colors); | |
| 706 } | |
| 707 | |
| 708 /* Clear the surface to black */ | |
| 709 video->offset_x = 0; | |
| 710 video->offset_y = 0; | |
| 711 mode->offset = 0; | |
| 712 SDL_SetClipRect(mode, NULL); | |
| 713 SDL_ClearSurface(mode); | |
| 714 | |
| 715 /* Now adjust the offsets to match the desired mode */ | |
| 716 video->offset_x = (mode->w-width)/2; | |
| 717 video->offset_y = (mode->h-height)/2; | |
| 718 mode->offset = video->offset_y*mode->pitch + | |
| 719 video->offset_x*mode->format->BytesPerPixel; | |
| 720 #ifdef DEBUG_VIDEO | |
| 721 fprintf(stderr, | |
| 722 "Requested mode: %dx%dx%d, obtained mode %dx%dx%d (offset %d)\n", | |
| 723 width, height, bpp, | |
| 724 mode->w, mode->h, mode->format->BitsPerPixel, mode->offset); | |
| 725 #endif | |
| 726 mode->w = width; | |
| 727 mode->h = height; | |
| 728 SDL_SetClipRect(mode, NULL); | |
| 729 } | |
| 730 SDL_ResetCursor(); | |
| 731 SDL_UnlockCursor(); | |
| 732 | |
| 733 /* If we failed setting a video mode, return NULL... (Uh Oh!) */ | |
| 734 if ( mode == NULL ) { | |
| 735 return(NULL); | |
| 736 } | |
| 737 | |
| 738 /* If there is no window manager, set the SDL_NOFRAME flag */ | |
| 739 if ( ! video->info.wm_available ) { | |
| 740 mode->flags |= SDL_NOFRAME; | |
| 741 } | |
| 742 | |
| 743 /* Reset the mouse cursor and grab for new video mode */ | |
| 744 SDL_SetCursor(NULL); | |
| 745 if ( video->UpdateMouse ) { | |
| 746 video->UpdateMouse(this); | |
| 747 } | |
| 748 SDL_WM_GrabInput(saved_grab); | |
| 749 SDL_GetRelativeMouseState(NULL, NULL); /* Clear first large delta */ | |
| 750 | |
|
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751 #if SDL_VIDEO_OPENGL |
|
650
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752 /* Load GL symbols (before MakeCurrent, where we need glGetString). */ |
|
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|
753 if ( flags & SDL_OPENGL ) { |
|
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754 |
|
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755 #if defined(__QNXNTO__) && (_NTO_VERSION < 630) |
|
916
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756 #define __SDL_NOGETPROCADDR__ |
|
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Factorize OSMesa OpenGL code for Atari drivers
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757 #elif defined(__MINT__) |
|
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758 #define __SDL_NOGETPROCADDR__ |
|
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759 #endif |
|
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|
760 #ifdef __SDL_NOGETPROCADDR__ |
|
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761 #define SDL_PROC(ret,func,params) video->func=func; |
|
663
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762 #else |
|
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763 #define SDL_PROC(ret,func,params) \ |
|
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764 do { \ |
|
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765 video->func = SDL_GL_GetProcAddress(#func); \ |
|
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766 if ( ! video->func ) { \ |
|
1141
fe1fa56dcbc6
If couldn't load a needed GL symbol in SDL_SetVideoMode(), report it more
Ryan C. Gordon <icculus@icculus.org>
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767 SDL_SetError("Couldn't load GL function %s: %s\n", #func, SDL_GetError()); \ |
|
910
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768 return(NULL); \ |
|
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769 } \ |
|
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770 } while ( 0 ); |
|
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771 |
|
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772 #endif /* __SDL_NOGETPROCADDR__ */ |
|
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|
773 |
|
650
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
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774 #include "SDL_glfuncs.h" |
|
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775 #undef SDL_PROC |
|
fe445b59d307
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|
776 } |
|
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777 #endif /* SDL_VIDEO_OPENGL */ |
|
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Ryan C. Gordon <icculus@icculus.org>
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|
778 |
| 0 | 779 /* If we're running OpenGL, make the context current */ |
| 780 if ( (video->screen->flags & SDL_OPENGL) && | |
| 781 video->GL_MakeCurrent ) { | |
| 782 if ( video->GL_MakeCurrent(this) < 0 ) { | |
| 783 return(NULL); | |
| 784 } | |
| 785 } | |
| 786 | |
| 787 /* Create a shadow surface if necessary */ | |
| 788 /* There are three conditions under which we create a shadow surface: | |
| 789 1. We need a particular bits-per-pixel that we didn't get. | |
| 790 2. We need a hardware palette and didn't get one. | |
| 791 3. We need a software surface and got a hardware surface. | |
| 792 */ | |
| 793 if ( !(SDL_VideoSurface->flags & SDL_OPENGL) && | |
| 794 ( | |
| 795 ( !(flags&SDL_ANYFORMAT) && | |
| 796 (SDL_VideoSurface->format->BitsPerPixel != bpp)) || | |
| 797 ( (flags&SDL_HWPALETTE) && | |
| 798 !(SDL_VideoSurface->flags&SDL_HWPALETTE)) || | |
| 799 /* If the surface is in hardware, video writes are visible | |
| 800 as soon as they are performed, so we need to buffer them | |
| 801 */ | |
| 802 ( ((flags&SDL_HWSURFACE) == SDL_SWSURFACE) && | |
|
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803 (SDL_VideoSurface->flags&SDL_HWSURFACE)) || |
|
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804 ( (flags&SDL_DOUBLEBUF) && |
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805 (SDL_VideoSurface->flags&SDL_HWSURFACE) && |
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806 !(SDL_VideoSurface->flags&SDL_DOUBLEBUF)) |
| 0 | 807 ) ) { |
| 808 SDL_CreateShadowSurface(bpp); | |
| 809 if ( SDL_ShadowSurface == NULL ) { | |
| 810 SDL_SetError("Couldn't create shadow surface"); | |
| 811 return(NULL); | |
| 812 } | |
| 813 SDL_PublicSurface = SDL_ShadowSurface; | |
| 814 } else { | |
| 815 SDL_PublicSurface = SDL_VideoSurface; | |
| 816 } | |
| 817 video->info.vfmt = SDL_VideoSurface->format; | |
|
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818 video->info.current_w = SDL_VideoSurface->w; |
|
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819 video->info.current_h = SDL_VideoSurface->h; |
| 0 | 820 |
| 821 /* We're done! */ | |
| 822 return(SDL_PublicSurface); | |
| 823 } | |
| 824 | |
| 825 /* | |
| 826 * Convert a surface into the video pixel format. | |
| 827 */ | |
| 828 SDL_Surface * SDL_DisplayFormat (SDL_Surface *surface) | |
| 829 { | |
| 830 Uint32 flags; | |
| 831 | |
| 832 if ( ! SDL_PublicSurface ) { | |
| 833 SDL_SetError("No video mode has been set"); | |
| 834 return(NULL); | |
| 835 } | |
| 836 /* Set the flags appropriate for copying to display surface */ | |
|
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837 if (((SDL_PublicSurface->flags&SDL_HWSURFACE) == SDL_HWSURFACE) && current_video->info.blit_hw) |
|
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838 flags = SDL_HWSURFACE; |
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839 else |
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840 flags = SDL_SWSURFACE; |
| 0 | 841 #ifdef AUTORLE_DISPLAYFORMAT |
| 842 flags |= (surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA)); | |
| 843 flags |= SDL_RLEACCELOK; | |
| 844 #else | |
| 845 flags |= surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA|SDL_RLEACCELOK); | |
| 846 #endif | |
| 847 return(SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags)); | |
| 848 } | |
| 849 | |
| 850 /* | |
| 851 * Convert a surface into a format that's suitable for blitting to | |
| 852 * the screen, but including an alpha channel. | |
| 853 */ | |
| 854 SDL_Surface *SDL_DisplayFormatAlpha(SDL_Surface *surface) | |
| 855 { | |
| 856 SDL_PixelFormat *vf; | |
| 857 SDL_PixelFormat *format; | |
| 858 SDL_Surface *converted; | |
| 859 Uint32 flags; | |
| 860 /* default to ARGB8888 */ | |
| 861 Uint32 amask = 0xff000000; | |
| 862 Uint32 rmask = 0x00ff0000; | |
| 863 Uint32 gmask = 0x0000ff00; | |
| 864 Uint32 bmask = 0x000000ff; | |
| 865 | |
| 866 if ( ! SDL_PublicSurface ) { | |
| 867 SDL_SetError("No video mode has been set"); | |
| 868 return(NULL); | |
| 869 } | |
| 870 vf = SDL_PublicSurface->format; | |
| 871 | |
| 872 switch(vf->BytesPerPixel) { | |
| 873 case 2: | |
| 874 /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}. | |
| 875 For anything else (like ARGB4444) it doesn't matter | |
| 876 since we have no special code for it anyway */ | |
| 877 if ( (vf->Rmask == 0x1f) && | |
| 878 (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) { | |
| 879 rmask = 0xff; | |
| 880 bmask = 0xff0000; | |
| 881 } | |
| 882 break; | |
| 883 | |
| 884 case 3: | |
| 885 case 4: | |
| 886 /* Keep the video format, as long as the high 8 bits are | |
| 887 unused or alpha */ | |
| 888 if ( (vf->Rmask == 0xff) && (vf->Bmask == 0xff0000) ) { | |
| 889 rmask = 0xff; | |
| 890 bmask = 0xff0000; | |
| 891 } | |
| 892 break; | |
| 893 | |
| 894 default: | |
| 895 /* We have no other optimised formats right now. When/if a new | |
| 896 optimised alpha format is written, add the converter here */ | |
| 897 break; | |
| 898 } | |
| 899 format = SDL_AllocFormat(32, rmask, gmask, bmask, amask); | |
| 900 flags = SDL_PublicSurface->flags & SDL_HWSURFACE; | |
| 901 flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); | |
| 902 converted = SDL_ConvertSurface(surface, format, flags); | |
| 903 SDL_FreeFormat(format); | |
| 904 return(converted); | |
| 905 } | |
| 906 | |
| 907 /* | |
| 908 * Update a specific portion of the physical screen | |
| 909 */ | |
| 910 void SDL_UpdateRect(SDL_Surface *screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h) | |
| 911 { | |
| 912 if ( screen ) { | |
| 913 SDL_Rect rect; | |
| 914 | |
| 915 /* Perform some checking */ | |
| 916 if ( w == 0 ) | |
| 917 w = screen->w; | |
| 918 if ( h == 0 ) | |
| 919 h = screen->h; | |
| 920 if ( (int)(x+w) > screen->w ) | |
| 921 return; | |
| 922 if ( (int)(y+h) > screen->h ) | |
| 923 return; | |
| 924 | |
| 925 /* Fill the rectangle */ | |
|
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926 rect.x = (Sint16)x; |
|
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927 rect.y = (Sint16)y; |
|
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928 rect.w = (Uint16)w; |
|
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929 rect.h = (Uint16)h; |
| 0 | 930 SDL_UpdateRects(screen, 1, &rect); |
| 931 } | |
| 932 } | |
| 933 void SDL_UpdateRects (SDL_Surface *screen, int numrects, SDL_Rect *rects) | |
| 934 { | |
| 935 int i; | |
| 936 SDL_VideoDevice *video = current_video; | |
| 937 SDL_VideoDevice *this = current_video; | |
| 938 | |
|
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939 if ( (screen->flags & (SDL_OPENGL | SDL_OPENGLBLIT)) == SDL_OPENGL ) { |
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940 SDL_SetError("OpenGL active, use SDL_GL_SwapBuffers()"); |
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941 return; |
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942 } |
| 0 | 943 if ( screen == SDL_ShadowSurface ) { |
| 944 /* Blit the shadow surface using saved mapping */ | |
|
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945 SDL_Palette *pal = screen->format->palette; |
| 0 | 946 SDL_Color *saved_colors = NULL; |
|
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947 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 948 /* simulated 8bpp, use correct physical palette */ |
| 949 saved_colors = pal->colors; | |
| 950 if ( video->gammacols ) { | |
| 951 /* gamma-corrected palette */ | |
| 952 pal->colors = video->gammacols; | |
| 953 } else if ( video->physpal ) { | |
| 954 /* physical palette different from logical */ | |
| 955 pal->colors = video->physpal->colors; | |
| 956 } | |
| 957 } | |
| 958 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { | |
| 959 SDL_LockCursor(); | |
| 960 SDL_DrawCursor(SDL_ShadowSurface); | |
| 961 for ( i=0; i<numrects; ++i ) { | |
| 962 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 963 SDL_VideoSurface, &rects[i]); | |
| 964 } | |
| 965 SDL_EraseCursor(SDL_ShadowSurface); | |
| 966 SDL_UnlockCursor(); | |
| 967 } else { | |
| 968 for ( i=0; i<numrects; ++i ) { | |
| 969 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 970 SDL_VideoSurface, &rects[i]); | |
| 971 } | |
| 972 } | |
|
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973 if ( saved_colors ) { |
| 0 | 974 pal->colors = saved_colors; |
|
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975 } |
| 0 | 976 |
| 977 /* Fall through to video surface update */ | |
| 978 screen = SDL_VideoSurface; | |
| 979 } | |
| 980 if ( screen == SDL_VideoSurface ) { | |
| 981 /* Update the video surface */ | |
| 982 if ( screen->offset ) { | |
| 983 for ( i=0; i<numrects; ++i ) { | |
| 984 rects[i].x += video->offset_x; | |
| 985 rects[i].y += video->offset_y; | |
| 986 } | |
| 987 video->UpdateRects(this, numrects, rects); | |
| 988 for ( i=0; i<numrects; ++i ) { | |
| 989 rects[i].x -= video->offset_x; | |
| 990 rects[i].y -= video->offset_y; | |
| 991 } | |
| 992 } else { | |
| 993 video->UpdateRects(this, numrects, rects); | |
| 994 } | |
| 995 } | |
| 996 } | |
| 997 | |
| 998 /* | |
| 999 * Performs hardware double buffering, if possible, or a full update if not. | |
| 1000 */ | |
| 1001 int SDL_Flip(SDL_Surface *screen) | |
| 1002 { | |
| 1003 SDL_VideoDevice *video = current_video; | |
| 1004 /* Copy the shadow surface to the video surface */ | |
| 1005 if ( screen == SDL_ShadowSurface ) { | |
| 1006 SDL_Rect rect; | |
|
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1007 SDL_Palette *pal = screen->format->palette; |
| 0 | 1008 SDL_Color *saved_colors = NULL; |
|
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1009 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1010 /* simulated 8bpp, use correct physical palette */ |
| 1011 saved_colors = pal->colors; | |
| 1012 if ( video->gammacols ) { | |
| 1013 /* gamma-corrected palette */ | |
| 1014 pal->colors = video->gammacols; | |
| 1015 } else if ( video->physpal ) { | |
| 1016 /* physical palette different from logical */ | |
| 1017 pal->colors = video->physpal->colors; | |
| 1018 } | |
| 1019 } | |
| 1020 | |
| 1021 rect.x = 0; | |
| 1022 rect.y = 0; | |
| 1023 rect.w = screen->w; | |
| 1024 rect.h = screen->h; | |
|
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1025 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { |
|
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1026 SDL_LockCursor(); |
|
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1027 SDL_DrawCursor(SDL_ShadowSurface); |
|
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1028 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1029 SDL_VideoSurface, &rect); |
|
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1030 SDL_EraseCursor(SDL_ShadowSurface); |
|
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1031 SDL_UnlockCursor(); |
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1032 } else { |
|
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1033 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1034 SDL_VideoSurface, &rect); |
|
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1035 } |
|
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1036 if ( saved_colors ) { |
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1037 pal->colors = saved_colors; |
|
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1038 } |
| 0 | 1039 |
|
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1040 /* Fall through to video surface update */ |
| 0 | 1041 screen = SDL_VideoSurface; |
| 1042 } | |
| 1043 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 1044 SDL_VideoDevice *this = current_video; | |
| 1045 return(video->FlipHWSurface(this, SDL_VideoSurface)); | |
| 1046 } else { | |
| 1047 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1048 } | |
| 1049 return(0); | |
| 1050 } | |
| 1051 | |
| 1052 static void SetPalette_logical(SDL_Surface *screen, SDL_Color *colors, | |
| 1053 int firstcolor, int ncolors) | |
| 1054 { | |
|
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1055 SDL_Palette *pal = screen->format->palette; |
| 0 | 1056 SDL_Palette *vidpal; |
| 1057 | |
| 1058 if ( colors != (pal->colors + firstcolor) ) { | |
|
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1059 SDL_memcpy(pal->colors + firstcolor, colors, |
| 0 | 1060 ncolors * sizeof(*colors)); |
| 1061 } | |
| 1062 | |
| 1063 vidpal = SDL_VideoSurface->format->palette; | |
| 1064 if ( (screen == SDL_ShadowSurface) && vidpal ) { | |
|
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1065 /* |
| 0 | 1066 * This is a shadow surface, and the physical |
| 1067 * framebuffer is also indexed. Propagate the | |
| 1068 * changes to its logical palette so that | |
| 1069 * updates are always identity blits | |
| 1070 */ | |
|
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1071 SDL_memcpy(vidpal->colors + firstcolor, colors, |
| 0 | 1072 ncolors * sizeof(*colors)); |
| 1073 } | |
| 1074 SDL_FormatChanged(screen); | |
| 1075 } | |
| 1076 | |
| 1077 static int SetPalette_physical(SDL_Surface *screen, | |
| 1078 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1079 { | |
| 1080 SDL_VideoDevice *video = current_video; | |
| 1081 int gotall = 1; | |
| 1082 | |
| 1083 if ( video->physpal ) { | |
| 1084 /* We need to copy the new colors, since we haven't | |
| 1085 * already done the copy in the logical set above. | |
| 1086 */ | |
|
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1087 SDL_memcpy(video->physpal->colors + firstcolor, |
| 0 | 1088 colors, ncolors * sizeof(*colors)); |
| 1089 } | |
| 1090 if ( screen == SDL_ShadowSurface ) { | |
| 1091 if ( SDL_VideoSurface->flags & SDL_HWPALETTE ) { | |
| 1092 /* | |
| 1093 * The real screen is also indexed - set its physical | |
| 1094 * palette. The physical palette does not include the | |
| 1095 * gamma modification, we apply it directly instead, | |
| 1096 * but this only happens if we have hardware palette. | |
| 1097 */ | |
| 1098 screen = SDL_VideoSurface; | |
| 1099 } else { | |
| 1100 /* | |
| 1101 * The video surface is not indexed - invalidate any | |
| 1102 * active shadow-to-video blit mappings. | |
| 1103 */ | |
| 1104 if ( screen->map->dst == SDL_VideoSurface ) { | |
| 1105 SDL_InvalidateMap(screen->map); | |
| 1106 } | |
| 1107 if ( video->gamma ) { | |
| 1108 if( ! video->gammacols ) { | |
| 1109 SDL_Palette *pp = video->physpal; | |
| 1110 if(!pp) | |
| 1111 pp = screen->format->palette; | |
|
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1112 video->gammacols = SDL_malloc(pp->ncolors |
| 0 | 1113 * sizeof(SDL_Color)); |
| 1114 SDL_ApplyGamma(video->gamma, | |
| 1115 pp->colors, | |
| 1116 video->gammacols, | |
| 1117 pp->ncolors); | |
| 1118 } else { | |
| 1119 SDL_ApplyGamma(video->gamma, colors, | |
| 1120 video->gammacols | |
| 1121 + firstcolor, | |
| 1122 ncolors); | |
| 1123 } | |
| 1124 } | |
| 1125 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1126 } | |
| 1127 } | |
| 1128 | |
| 1129 if ( screen == SDL_VideoSurface ) { | |
| 1130 SDL_Color gcolors[256]; | |
| 1131 | |
|
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1132 if ( video->gamma ) { |
|
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1133 SDL_ApplyGamma(video->gamma, colors, gcolors, ncolors); |
| 0 | 1134 colors = gcolors; |
| 1135 } | |
| 1136 gotall = video->SetColors(video, firstcolor, ncolors, colors); | |
| 1137 if ( ! gotall ) { | |
| 1138 /* The video flags shouldn't have SDL_HWPALETTE, and | |
| 1139 the video driver is responsible for copying back the | |
| 1140 correct colors into the video surface palette. | |
| 1141 */ | |
| 1142 ; | |
| 1143 } | |
| 1144 SDL_CursorPaletteChanged(); | |
| 1145 } | |
| 1146 return gotall; | |
| 1147 } | |
| 1148 | |
| 1149 /* | |
| 1150 * Set the physical and/or logical colormap of a surface: | |
| 1151 * Only the screen has a physical colormap. It determines what is actually | |
| 1152 * sent to the display. | |
| 1153 * The logical colormap is used to map blits to/from the surface. | |
| 1154 * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL | |
| 1155 * | |
| 1156 * Return nonzero if all colours were set as requested, or 0 otherwise. | |
| 1157 */ | |
| 1158 int SDL_SetPalette(SDL_Surface *screen, int which, | |
| 1159 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1160 { | |
|
662
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diff
changeset
|
1161 SDL_Palette *pal; |
| 0 | 1162 int gotall; |
| 1163 int palsize; | |
| 1164 | |
| 34 | 1165 if ( ! current_video ) { |
| 1166 return 0; | |
| 1167 } | |
| 0 | 1168 if ( screen != SDL_PublicSurface ) { |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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parents:
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diff
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|
1169 /* only screens have physical palettes */ |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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diff
changeset
|
1170 which &= ~SDL_PHYSPAL; |
| 0 | 1171 } else if( (screen->flags & SDL_HWPALETTE) != SDL_HWPALETTE ) { |
|
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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parents:
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diff
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|
1172 /* hardware palettes required for split colormaps */ |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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656
diff
changeset
|
1173 which |= SDL_PHYSPAL | SDL_LOGPAL; |
| 0 | 1174 } |
| 1175 | |
| 1176 /* Verify the parameters */ | |
| 1177 pal = screen->format->palette; | |
| 1178 if( !pal ) { | |
|
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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|
1179 return 0; /* not a palettized surface */ |
| 0 | 1180 } |
| 1181 gotall = 1; | |
| 1182 palsize = 1 << screen->format->BitsPerPixel; | |
| 1183 if ( ncolors > (palsize - firstcolor) ) { | |
|
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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parents:
656
diff
changeset
|
1184 ncolors = (palsize - firstcolor); |
| 0 | 1185 gotall = 0; |
| 1186 } | |
| 1187 | |
| 1188 if ( which & SDL_LOGPAL ) { | |
| 1189 /* | |
| 1190 * Logical palette change: The actual screen isn't affected, | |
| 1191 * but the internal colormap is altered so that the | |
| 1192 * interpretation of the pixel values (for blits etc) is | |
| 1193 * changed. | |
| 1194 */ | |
|
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1195 SetPalette_logical(screen, colors, firstcolor, ncolors); |
| 0 | 1196 } |
| 1197 if ( which & SDL_PHYSPAL ) { | |
| 1198 SDL_VideoDevice *video = current_video; | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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656
diff
changeset
|
1199 /* |
| 0 | 1200 * Physical palette change: This doesn't affect the |
| 1201 * program's idea of what the screen looks like, but changes | |
| 1202 * its actual appearance. | |
| 1203 */ | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1204 if(!video) |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1205 return gotall; /* video not yet initialized */ |
| 0 | 1206 if(!video->physpal && !(which & SDL_LOGPAL) ) { |
| 1207 /* Lazy physical palette allocation */ | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1208 int size; |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1209 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
|
1210 if ( !pp ) { |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1211 return 0; |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1212 } |
| 0 | 1213 current_video->physpal = pp; |
| 1214 pp->ncolors = pal->ncolors; | |
| 1215 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
|
1216 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
|
1217 if ( !pp->colors ) { |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1218 return 0; |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1219 } |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1220 SDL_memcpy(pp->colors, pal->colors, size); |
| 0 | 1221 } |
| 1222 if ( ! SetPalette_physical(screen, | |
| 1223 colors, firstcolor, ncolors) ) { | |
| 1224 gotall = 0; | |
| 1225 } | |
| 1226 } | |
| 1227 return gotall; | |
| 1228 } | |
| 1229 | |
| 1230 int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor, | |
| 1231 int ncolors) | |
| 1232 { | |
|
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1233 return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, |
| 0 | 1234 colors, firstcolor, ncolors); |
| 1235 } | |
| 1236 | |
| 1237 /* | |
| 1238 * Clean up the video subsystem | |
| 1239 */ | |
| 1240 void SDL_VideoQuit (void) | |
| 1241 { | |
| 1242 SDL_Surface *ready_to_go; | |
| 1243 | |
| 1244 if ( current_video ) { | |
| 1245 SDL_VideoDevice *video = current_video; | |
| 1246 SDL_VideoDevice *this = current_video; | |
| 1247 | |
| 1248 /* Halt event processing before doing anything else */ | |
| 1249 SDL_StopEventLoop(); | |
| 1250 | |
| 1251 /* Clean up allocated window manager items */ | |
| 1252 if ( SDL_PublicSurface ) { | |
| 1253 SDL_PublicSurface = NULL; | |
| 1254 } | |
| 1255 SDL_CursorQuit(); | |
| 1256 | |
| 1257 /* Just in case... */ | |
| 1258 SDL_WM_GrabInputOff(); | |
| 1259 | |
| 1260 /* Clean up the system video */ | |
| 1261 video->VideoQuit(this); | |
| 1262 | |
| 1263 /* Free any lingering surfaces */ | |
| 1264 ready_to_go = SDL_ShadowSurface; | |
| 1265 SDL_ShadowSurface = NULL; | |
| 1266 SDL_FreeSurface(ready_to_go); | |
| 1267 if ( SDL_VideoSurface != NULL ) { | |
| 1268 ready_to_go = SDL_VideoSurface; | |
| 1269 SDL_VideoSurface = NULL; | |
| 1270 SDL_FreeSurface(ready_to_go); | |
| 1271 } | |
| 1272 SDL_PublicSurface = NULL; | |
| 1273 | |
| 1274 /* Clean up miscellaneous memory */ | |
| 1275 if ( video->physpal ) { | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1276 SDL_free(video->physpal->colors); |
|
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1277 SDL_free(video->physpal); |
| 0 | 1278 video->physpal = NULL; |
| 1279 } | |
| 1280 if ( video->gammacols ) { | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1281 SDL_free(video->gammacols); |
| 0 | 1282 video->gammacols = NULL; |
| 1283 } | |
| 1284 if ( video->gamma ) { | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1285 SDL_free(video->gamma); |
| 0 | 1286 video->gamma = NULL; |
| 1287 } | |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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47
diff
changeset
|
1288 if ( video->wm_title != NULL ) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1289 SDL_free(video->wm_title); |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1290 video->wm_title = NULL; |
| 0 | 1291 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1292 if ( video->wm_icon != NULL ) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
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|
1293 SDL_free(video->wm_icon); |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1294 video->wm_icon = NULL; |
| 0 | 1295 } |
| 1296 | |
| 1297 /* Finish cleaning up video subsystem */ | |
| 1298 video->free(this); | |
| 1299 current_video = NULL; | |
| 1300 } | |
| 1301 return; | |
| 1302 } | |
| 1303 | |
| 1304 /* Load the GL driver library */ | |
| 1305 int SDL_GL_LoadLibrary(const char *path) | |
| 1306 { | |
| 1307 SDL_VideoDevice *video = current_video; | |
| 1308 SDL_VideoDevice *this = current_video; | |
| 1309 int retval; | |
| 1310 | |
| 1311 retval = -1; | |
|
423
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
Ryan C. Gordon <icculus@icculus.org>
parents:
371
diff
changeset
|
1312 if ( video == NULL ) { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
Ryan C. Gordon <icculus@icculus.org>
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371
diff
changeset
|
1313 SDL_SetError("Video subsystem has not been initialized"); |
| 0 | 1314 } else { |
|
423
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
Ryan C. Gordon <icculus@icculus.org>
parents:
371
diff
changeset
|
1315 if ( video->GL_LoadLibrary ) { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
Ryan C. Gordon <icculus@icculus.org>
parents:
371
diff
changeset
|
1316 retval = video->GL_LoadLibrary(this, path); |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
Ryan C. Gordon <icculus@icculus.org>
parents:
371
diff
changeset
|
1317 } else { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
Ryan C. Gordon <icculus@icculus.org>
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diff
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|
1318 SDL_SetError("No dynamic GL support in video driver"); |
|
d1565c52ded5
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parents:
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diff
changeset
|
1319 } |
| 0 | 1320 } |
| 1321 return(retval); | |
| 1322 } | |
| 1323 | |
| 1324 void *SDL_GL_GetProcAddress(const char* proc) | |
| 1325 { | |
| 1326 SDL_VideoDevice *video = current_video; | |
| 1327 SDL_VideoDevice *this = current_video; | |
| 1328 void *func; | |
| 1329 | |
| 1330 func = NULL; | |
| 1331 if ( video->GL_GetProcAddress ) { | |
| 1332 if ( video->gl_config.driver_loaded ) { | |
| 1333 func = video->GL_GetProcAddress(this, proc); | |
| 1334 } else { | |
| 1335 SDL_SetError("No GL driver has been loaded"); | |
| 1336 } | |
| 1337 } else { | |
| 1338 SDL_SetError("No dynamic GL support in video driver"); | |
| 1339 } | |
| 1340 return func; | |
| 1341 } | |
| 1342 | |
| 1343 /* Set the specified GL attribute for setting up a GL video mode */ | |
| 1344 int SDL_GL_SetAttribute( SDL_GLattr attr, int value ) | |
| 1345 { | |
| 1346 int retval; | |
| 1347 SDL_VideoDevice *video = current_video; | |
| 1348 | |
| 1349 retval = 0; | |
| 1350 switch (attr) { | |
| 1351 case SDL_GL_RED_SIZE: | |
| 1352 video->gl_config.red_size = value; | |
| 1353 break; | |
| 1354 case SDL_GL_GREEN_SIZE: | |
| 1355 video->gl_config.green_size = value; | |
| 1356 break; | |
| 1357 case SDL_GL_BLUE_SIZE: | |
| 1358 video->gl_config.blue_size = value; | |
| 1359 break; | |
| 1360 case SDL_GL_ALPHA_SIZE: | |
| 1361 video->gl_config.alpha_size = value; | |
| 1362 break; | |
| 1363 case SDL_GL_DOUBLEBUFFER: | |
| 1364 video->gl_config.double_buffer = value; | |
| 1365 break; | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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656
diff
changeset
|
1366 case SDL_GL_BUFFER_SIZE: |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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656
diff
changeset
|
1367 video->gl_config.buffer_size = value; |
| 0 | 1368 break; |
| 1369 case SDL_GL_DEPTH_SIZE: | |
| 1370 video->gl_config.depth_size = value; | |
| 1371 break; | |
| 1372 case SDL_GL_STENCIL_SIZE: | |
| 1373 video->gl_config.stencil_size = value; | |
| 1374 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1375 case SDL_GL_ACCUM_RED_SIZE: |
| 0 | 1376 video->gl_config.accum_red_size = value; |
| 1377 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1378 case SDL_GL_ACCUM_GREEN_SIZE: |
| 0 | 1379 video->gl_config.accum_green_size = value; |
| 1380 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1381 case SDL_GL_ACCUM_BLUE_SIZE: |
| 0 | 1382 video->gl_config.accum_blue_size = value; |
| 1383 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1384 case SDL_GL_ACCUM_ALPHA_SIZE: |
| 0 | 1385 video->gl_config.accum_alpha_size = value; |
| 1386 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1387 case SDL_GL_STEREO: |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1388 video->gl_config.stereo = value; |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1389 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
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655
diff
changeset
|
1390 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
|
1391 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
|
1392 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
|
1393 case SDL_GL_MULTISAMPLESAMPLES: |
|
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
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655
diff
changeset
|
1394 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
|
1395 break; |
| 0 | 1396 default: |
| 1397 SDL_SetError("Unknown OpenGL attribute"); | |
| 1398 retval = -1; | |
| 1399 break; | |
| 1400 } | |
| 1401 return(retval); | |
| 1402 } | |
| 1403 | |
| 1404 /* Retrieve an attribute value from the windowing system. */ | |
| 1405 int SDL_GL_GetAttribute(SDL_GLattr attr, int* value) | |
| 1406 { | |
| 1407 int retval = -1; | |
| 1408 SDL_VideoDevice* video = current_video; | |
| 1409 SDL_VideoDevice* this = current_video; | |
| 1410 | |
| 1411 if ( video->GL_GetAttribute ) { | |
| 1412 retval = this->GL_GetAttribute(this, attr, value); | |
|
11
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1413 } else { |
|
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1414 *value = 0; |
|
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1415 SDL_SetError("GL_GetAttribute not supported"); |
| 0 | 1416 } |
| 1417 return retval; | |
| 1418 } | |
| 1419 | |
| 1420 /* Perform a GL buffer swap on the current GL context */ | |
| 1421 void SDL_GL_SwapBuffers(void) | |
| 1422 { | |
| 1423 SDL_VideoDevice *video = current_video; | |
| 1424 SDL_VideoDevice *this = current_video; | |
| 1425 | |
| 1426 if ( video->screen->flags & SDL_OPENGL ) { | |
|
266
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Added QNX cleanups by Mike Gorchak (thanks!)
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changeset
|
1427 video->GL_SwapBuffers(this); |
|
c6abdda2f666
Added QNX cleanups by Mike Gorchak (thanks!)
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|
1428 } else { |
|
c6abdda2f666
Added QNX cleanups by Mike Gorchak (thanks!)
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changeset
|
1429 SDL_SetError("OpenGL video mode has not been set"); |
| 0 | 1430 } |
| 1431 } | |
| 1432 | |
| 1433 /* | |
| 1434 * Sets/Gets the title and icon text of the display window, if any. | |
| 1435 */ | |
| 1436 void SDL_WM_SetCaption (const char *title, const char *icon) | |
| 1437 { | |
| 1438 SDL_VideoDevice *video = current_video; | |
| 1439 SDL_VideoDevice *this = current_video; | |
| 1440 | |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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47
diff
changeset
|
1441 if ( video ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1442 if ( title ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1443 if ( video->wm_title ) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1444 SDL_free(video->wm_title); |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1445 } |
|
1379
c0a74f199ecf
Use only safe string functions
Sam Lantinga <slouken@libsdl.org>
parents:
1361
diff
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1446 video->wm_title = SDL_strdup(title); |
| 0 | 1447 } |
|
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1448 if ( icon ) { |
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1449 if ( video->wm_icon ) { |
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1450 SDL_free(video->wm_icon); |
|
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1451 } |
|
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1452 video->wm_icon = SDL_strdup(icon); |
| 0 | 1453 } |
|
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1454 if ( (title || icon) && (video->SetCaption != NULL) ) { |
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1455 video->SetCaption(this, video->wm_title,video->wm_icon); |
| 0 | 1456 } |
| 1457 } | |
| 1458 } | |
| 1459 void SDL_WM_GetCaption (char **title, char **icon) | |
| 1460 { | |
|
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1461 SDL_VideoDevice *video = current_video; |
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1462 |
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1463 if ( video ) { |
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1464 if ( title ) { |
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1465 *title = video->wm_title; |
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1466 } |
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1467 if ( icon ) { |
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1468 *icon = video->wm_icon; |
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1469 } |
| 0 | 1470 } |
| 1471 } | |
| 1472 | |
|
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1473 /* Utility function used by SDL_WM_SetIcon(); |
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1474 * flags & 1 for color key, flags & 2 for alpha channel. */ |
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1475 static void CreateMaskFromColorKeyOrAlpha(SDL_Surface *icon, Uint8 *mask, int flags) |
| 0 | 1476 { |
| 1477 int x, y; | |
| 1478 Uint32 colorkey; | |
| 1479 #define SET_MASKBIT(icon, x, y, mask) \ | |
| 1480 mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8))) | |
| 1481 | |
| 1482 colorkey = icon->format->colorkey; | |
| 1483 switch (icon->format->BytesPerPixel) { | |
| 1484 case 1: { Uint8 *pixels; | |
| 1485 for ( y=0; y<icon->h; ++y ) { | |
| 1486 pixels = (Uint8 *)icon->pixels + y*icon->pitch; | |
| 1487 for ( x=0; x<icon->w; ++x ) { | |
| 1488 if ( *pixels++ == colorkey ) { | |
| 1489 SET_MASKBIT(icon, x, y, mask); | |
| 1490 } | |
| 1491 } | |
| 1492 } | |
| 1493 } | |
| 1494 break; | |
| 1495 | |
| 1496 case 2: { Uint16 *pixels; | |
| 1497 for ( y=0; y<icon->h; ++y ) { | |
| 1498 pixels = (Uint16 *)icon->pixels + | |
| 1499 y*icon->pitch/2; | |
| 1500 for ( x=0; x<icon->w; ++x ) { | |
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1501 if ( (flags & 1) && *pixels == colorkey ) { |
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1502 SET_MASKBIT(icon, x, y, mask); |
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1503 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1504 SET_MASKBIT(icon, x, y, mask); |
| 1505 } | |
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1506 pixels++; |
| 0 | 1507 } |
| 1508 } | |
| 1509 } | |
| 1510 break; | |
| 1511 | |
| 1512 case 4: { Uint32 *pixels; | |
| 1513 for ( y=0; y<icon->h; ++y ) { | |
| 1514 pixels = (Uint32 *)icon->pixels + | |
| 1515 y*icon->pitch/4; | |
| 1516 for ( x=0; x<icon->w; ++x ) { | |
|
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1517 if ( (flags & 1) && *pixels == colorkey ) { |
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1518 SET_MASKBIT(icon, x, y, mask); |
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1519 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1520 SET_MASKBIT(icon, x, y, mask); |
| 1521 } | |
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1522 pixels++; |
| 0 | 1523 } |
| 1524 } | |
| 1525 } | |
| 1526 break; | |
| 1527 } | |
| 1528 } | |
| 1529 | |
| 1530 /* | |
| 1531 * Sets the window manager icon for the display window. | |
| 1532 */ | |
| 1533 void SDL_WM_SetIcon (SDL_Surface *icon, Uint8 *mask) | |
| 1534 { | |
| 1535 SDL_VideoDevice *video = current_video; | |
| 1536 SDL_VideoDevice *this = current_video; | |
| 1537 | |
| 1538 if ( icon && video->SetIcon ) { | |
| 1539 /* Generate a mask if necessary, and create the icon! */ | |
| 1540 if ( mask == NULL ) { | |
| 1541 int mask_len = icon->h*(icon->w+7)/8; | |
|
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1542 int flags = 0; |
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1543 mask = (Uint8 *)SDL_malloc(mask_len); |
| 0 | 1544 if ( mask == NULL ) { |
| 1545 return; | |
| 1546 } | |
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1547 SDL_memset(mask, ~0, mask_len); |
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1548 if ( icon->flags & SDL_SRCCOLORKEY ) flags |= 1; |
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1549 if ( icon->flags & SDL_SRCALPHA ) flags |= 2; |
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1550 if( flags ) { |
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1551 CreateMaskFromColorKeyOrAlpha(icon, mask, flags); |
| 0 | 1552 } |
| 1553 video->SetIcon(video, icon, mask); | |
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1554 SDL_free(mask); |
| 0 | 1555 } else { |
| 1556 video->SetIcon(this, icon, mask); | |
| 1557 } | |
| 1558 } | |
| 1559 } | |
| 1560 | |
| 1561 /* | |
| 1562 * Grab or ungrab the keyboard and mouse input. | |
| 1563 * This function returns the final grab mode after calling the | |
| 1564 * driver dependent function. | |
| 1565 */ | |
| 1566 static SDL_GrabMode SDL_WM_GrabInputRaw(SDL_GrabMode mode) | |
| 1567 { | |
| 1568 SDL_VideoDevice *video = current_video; | |
| 1569 SDL_VideoDevice *this = current_video; | |
| 1570 | |
| 1571 /* Only do something if we have support for grabs */ | |
| 1572 if ( video->GrabInput == NULL ) { | |
| 1573 return(video->input_grab); | |
| 1574 } | |
| 1575 | |
| 1576 /* If the final grab mode if off, only then do we actually grab */ | |
| 1577 #ifdef DEBUG_GRAB | |
| 1578 printf("SDL_WM_GrabInputRaw(%d) ... ", mode); | |
| 1579 #endif | |
| 1580 if ( mode == SDL_GRAB_OFF ) { | |
| 1581 if ( video->input_grab != SDL_GRAB_OFF ) { | |
| 1582 mode = video->GrabInput(this, mode); | |
| 1583 } | |
| 1584 } else { | |
| 1585 if ( video->input_grab == SDL_GRAB_OFF ) { | |
| 1586 mode = video->GrabInput(this, mode); | |
| 1587 } | |
| 1588 } | |
| 1589 if ( mode != video->input_grab ) { | |
| 1590 video->input_grab = mode; | |
| 1591 if ( video->CheckMouseMode ) { | |
| 1592 video->CheckMouseMode(this); | |
| 1593 } | |
| 1594 } | |
| 1595 #ifdef DEBUG_GRAB | |
| 1596 printf("Final mode %d\n", video->input_grab); | |
| 1597 #endif | |
| 1598 | |
| 1599 /* Return the final grab state */ | |
| 1600 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1601 mode -= SDL_GRAB_FULLSCREEN; | |
| 1602 } | |
| 1603 return(mode); | |
| 1604 } | |
| 1605 SDL_GrabMode SDL_WM_GrabInput(SDL_GrabMode mode) | |
| 1606 { | |
| 1607 SDL_VideoDevice *video = current_video; | |
| 1608 | |
|
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1609 /* If the video isn't initialized yet, we can't do anything */ |
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1610 if ( ! video ) { |
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1611 return SDL_GRAB_OFF; |
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1612 } |
| 0 | 1613 |
| 1614 /* Return the current mode on query */ | |
| 1615 if ( mode == SDL_GRAB_QUERY ) { | |
| 1616 mode = video->input_grab; | |
| 1617 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1618 mode -= SDL_GRAB_FULLSCREEN; | |
| 1619 } | |
| 1620 return(mode); | |
| 1621 } | |
| 1622 | |
| 1623 #ifdef DEBUG_GRAB | |
| 1624 printf("SDL_WM_GrabInput(%d) ... ", mode); | |
| 1625 #endif | |
| 1626 /* If the video surface is fullscreen, we always grab */ | |
| 1627 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1628 mode -= SDL_GRAB_FULLSCREEN; | |
| 1629 } | |
| 1630 if ( SDL_VideoSurface && (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { | |
| 1631 mode += SDL_GRAB_FULLSCREEN; | |
| 1632 } | |
| 1633 return(SDL_WM_GrabInputRaw(mode)); | |
| 1634 } | |
| 1635 static SDL_GrabMode SDL_WM_GrabInputOff(void) | |
| 1636 { | |
| 1637 SDL_GrabMode mode; | |
| 1638 | |
| 1639 /* First query the current grab state */ | |
| 1640 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 1641 | |
| 1642 /* Now explicitly turn off input grab */ | |
| 1643 SDL_WM_GrabInputRaw(SDL_GRAB_OFF); | |
| 1644 | |
| 1645 /* Return the old state */ | |
| 1646 return(mode); | |
| 1647 } | |
| 1648 | |
| 1649 /* | |
| 1650 * Iconify the window in window managed environments. | |
| 1651 * A successful iconification will result in an SDL_APPACTIVE loss event. | |
| 1652 */ | |
| 1653 int SDL_WM_IconifyWindow(void) | |
| 1654 { | |
| 1655 SDL_VideoDevice *video = current_video; | |
| 1656 SDL_VideoDevice *this = current_video; | |
| 1657 int retval; | |
| 1658 | |
| 1659 retval = 0; | |
| 1660 if ( video->IconifyWindow ) { | |
| 1661 retval = video->IconifyWindow(this); | |
| 1662 } | |
| 1663 return(retval); | |
| 1664 } | |
| 1665 | |
| 1666 /* | |
| 1667 * Toggle fullscreen mode | |
| 1668 */ | |
| 1669 int SDL_WM_ToggleFullScreen(SDL_Surface *surface) | |
| 1670 { | |
| 1671 SDL_VideoDevice *video = current_video; | |
| 1672 SDL_VideoDevice *this = current_video; | |
| 1673 int toggled; | |
| 1674 | |
| 1675 toggled = 0; | |
| 1676 if ( SDL_PublicSurface && (surface == SDL_PublicSurface) && | |
| 1677 video->ToggleFullScreen ) { | |
| 1678 if ( surface->flags & SDL_FULLSCREEN ) { | |
| 1679 toggled = video->ToggleFullScreen(this, 0); | |
| 1680 if ( toggled ) { | |
| 1681 SDL_VideoSurface->flags &= ~SDL_FULLSCREEN; | |
| 1682 SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; | |
| 1683 } | |
| 1684 } else { | |
| 1685 toggled = video->ToggleFullScreen(this, 1); | |
| 1686 if ( toggled ) { | |
| 1687 SDL_VideoSurface->flags |= SDL_FULLSCREEN; | |
| 1688 SDL_PublicSurface->flags |= SDL_FULLSCREEN; | |
| 1689 } | |
| 1690 } | |
| 1691 /* Double-check the grab state inside SDL_WM_GrabInput() */ | |
| 1692 if ( toggled ) { | |
| 1693 SDL_WM_GrabInput(video->input_grab); | |
| 1694 } | |
| 1695 } | |
| 1696 return(toggled); | |
| 1697 } | |
| 1698 | |
| 1699 /* | |
| 1700 * Get some platform dependent window manager information | |
| 1701 */ | |
| 1702 int SDL_GetWMInfo (SDL_SysWMinfo *info) | |
| 1703 { | |
| 1704 SDL_VideoDevice *video = current_video; | |
| 1705 SDL_VideoDevice *this = current_video; | |
| 1706 | |
| 1707 if ( video && video->GetWMInfo ) { | |
| 1708 return(video->GetWMInfo(this, info)); | |
| 1709 } else { | |
| 1710 return(0); | |
| 1711 } | |
| 1712 } |