Mercurial > sdl-ios-xcode
annotate src/video/SDL_video.c @ 4200:907624b7a72c SDL-1.2
Oops, need to compile first, before commit.
| author | Patrice Mandin <patmandin@gmail.com> |
|---|---|
| date | Sun, 20 Sep 2009 12:48:51 +0000 |
| parents | 3b8ac3d311a2 |
| children | 429c8dd3175d |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 4159 | 3 Copyright (C) 1997-2009 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 | |
| 4165 | 66 #if SDL_VIDEO_DRIVER_PS3 |
| 67 &PS3_bootstrap, | |
| 68 #endif | |
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69 #if SDL_VIDEO_DRIVER_GGI |
| 0 | 70 &GGI_bootstrap, |
| 71 #endif | |
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72 #if SDL_VIDEO_DRIVER_VGL |
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73 &VGL_bootstrap, |
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74 #endif |
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75 #if SDL_VIDEO_DRIVER_SVGALIB |
| 0 | 76 &SVGALIB_bootstrap, |
| 77 #endif | |
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78 #if SDL_VIDEO_DRIVER_GAPI |
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79 &GAPI_bootstrap, |
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80 #endif |
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81 #if SDL_VIDEO_DRIVER_WINDIB |
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82 &WINDIB_bootstrap, |
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83 #endif |
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84 #if SDL_VIDEO_DRIVER_DDRAW |
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85 &DIRECTX_bootstrap, |
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86 #endif |
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87 #if SDL_VIDEO_DRIVER_BWINDOW |
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88 &BWINDOW_bootstrap, |
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89 #endif |
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90 #if SDL_VIDEO_DRIVER_TOOLBOX |
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91 &TOOLBOX_bootstrap, |
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92 #endif |
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93 #if SDL_VIDEO_DRIVER_DRAWSPROCKET |
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94 &DSp_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_NDS |
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115 &NDS_bootstrap, |
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116 #endif |
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117 #if SDL_VIDEO_DRIVER_RISCOS |
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118 &RISCOS_bootstrap, |
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119 #endif |
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120 #if SDL_VIDEO_DRIVER_OS2FS |
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121 &OS2FSLib_bootstrap, |
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122 #endif |
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123 #if SDL_VIDEO_DRIVER_AALIB |
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124 &AALIB_bootstrap, |
| 0 | 125 #endif |
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126 #if SDL_VIDEO_DRIVER_DUMMY |
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127 &DUMMY_bootstrap, |
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128 #endif |
| 0 | 129 NULL |
| 130 }; | |
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131 |
| 0 | 132 SDL_VideoDevice *current_video = NULL; |
| 133 | |
| 134 /* Various local functions */ | |
| 135 int SDL_VideoInit(const char *driver_name, Uint32 flags); | |
| 136 void SDL_VideoQuit(void); | |
| 137 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect* rects); | |
| 138 | |
| 139 static SDL_GrabMode SDL_WM_GrabInputOff(void); | |
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140 #if SDL_VIDEO_OPENGL |
| 0 | 141 static int lock_count = 0; |
| 142 #endif | |
| 143 | |
| 144 | |
| 145 /* | |
| 146 * Initialize the video and event subsystems -- determine native pixel format | |
| 147 */ | |
| 148 int SDL_VideoInit (const char *driver_name, Uint32 flags) | |
| 149 { | |
| 150 SDL_VideoDevice *video; | |
| 151 int index; | |
| 152 int i; | |
| 153 SDL_PixelFormat vformat; | |
| 154 Uint32 video_flags; | |
| 155 | |
| 156 /* Toggle the event thread flags, based on OS requirements */ | |
| 157 #if defined(MUST_THREAD_EVENTS) | |
| 158 flags |= SDL_INIT_EVENTTHREAD; | |
| 159 #elif defined(CANT_THREAD_EVENTS) | |
| 160 if ( (flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD ) { | |
| 161 SDL_SetError("OS doesn't support threaded events"); | |
| 162 return(-1); | |
| 163 } | |
| 164 #endif | |
| 165 | |
| 166 /* Check to make sure we don't overwrite 'current_video' */ | |
| 167 if ( current_video != NULL ) { | |
| 168 SDL_VideoQuit(); | |
| 169 } | |
| 170 | |
| 171 /* Select the proper video driver */ | |
| 172 index = 0; | |
| 173 video = NULL; | |
| 174 if ( driver_name != NULL ) { | |
| 175 #if 0 /* This will be replaced with a better driver selection API */ | |
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176 if ( SDL_strrchr(driver_name, ':') != NULL ) { |
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177 index = atoi(SDL_strrchr(driver_name, ':')+1); |
| 0 | 178 } |
| 179 #endif | |
| 180 for ( i=0; bootstrap[i]; ++i ) { | |
| 3882 | 181 if ( SDL_strcasecmp(bootstrap[i]->name, driver_name) == 0) { |
| 0 | 182 if ( bootstrap[i]->available() ) { |
| 183 video = bootstrap[i]->create(index); | |
| 184 break; | |
| 185 } | |
| 186 } | |
| 187 } | |
| 188 } else { | |
| 189 for ( i=0; bootstrap[i]; ++i ) { | |
| 190 if ( bootstrap[i]->available() ) { | |
| 191 video = bootstrap[i]->create(index); | |
| 192 if ( video != NULL ) { | |
| 193 break; | |
| 194 } | |
| 195 } | |
| 196 } | |
| 197 } | |
| 198 if ( video == NULL ) { | |
| 199 SDL_SetError("No available video device"); | |
| 200 return(-1); | |
| 201 } | |
| 202 current_video = video; | |
| 203 current_video->name = bootstrap[i]->name; | |
| 204 | |
| 205 /* Do some basic variable initialization */ | |
| 206 video->screen = NULL; | |
| 207 video->shadow = NULL; | |
| 208 video->visible = NULL; | |
| 209 video->physpal = NULL; | |
| 210 video->gammacols = NULL; | |
| 211 video->gamma = NULL; | |
| 212 video->wm_title = NULL; | |
| 213 video->wm_icon = NULL; | |
| 214 video->offset_x = 0; | |
| 215 video->offset_y = 0; | |
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216 SDL_memset(&video->info, 0, (sizeof video->info)); |
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217 |
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218 video->displayformatalphapixel = NULL; |
| 0 | 219 |
| 220 /* Set some very sane GL defaults */ | |
| 221 video->gl_config.driver_loaded = 0; | |
| 222 video->gl_config.dll_handle = NULL; | |
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223 video->gl_config.red_size = 3; |
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224 video->gl_config.green_size = 3; |
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225 video->gl_config.blue_size = 2; |
| 0 | 226 video->gl_config.alpha_size = 0; |
| 227 video->gl_config.buffer_size = 0; | |
| 228 video->gl_config.depth_size = 16; | |
| 229 video->gl_config.stencil_size = 0; | |
| 230 video->gl_config.double_buffer = 1; | |
| 231 video->gl_config.accum_red_size = 0; | |
| 232 video->gl_config.accum_green_size = 0; | |
| 233 video->gl_config.accum_blue_size = 0; | |
| 234 video->gl_config.accum_alpha_size = 0; | |
|
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235 video->gl_config.stereo = 0; |
|
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236 video->gl_config.multisamplebuffers = 0; |
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237 video->gl_config.multisamplesamples = 0; |
| 1737 | 238 video->gl_config.accelerated = -1; /* not known, don't set */ |
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239 video->gl_config.swap_control = -1; /* not known, don't set */ |
| 0 | 240 |
| 241 /* Initialize the video subsystem */ | |
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242 SDL_memset(&vformat, 0, sizeof(vformat)); |
| 0 | 243 if ( video->VideoInit(video, &vformat) < 0 ) { |
| 244 SDL_VideoQuit(); | |
| 245 return(-1); | |
| 246 } | |
| 247 | |
| 248 /* Create a zero sized video surface of the appropriate format */ | |
| 249 video_flags = SDL_SWSURFACE; | |
| 250 SDL_VideoSurface = SDL_CreateRGBSurface(video_flags, 0, 0, | |
| 251 vformat.BitsPerPixel, | |
| 252 vformat.Rmask, vformat.Gmask, vformat.Bmask, 0); | |
| 253 if ( SDL_VideoSurface == NULL ) { | |
| 254 SDL_VideoQuit(); | |
| 255 return(-1); | |
| 256 } | |
| 257 SDL_PublicSurface = NULL; /* Until SDL_SetVideoMode() */ | |
| 258 | |
| 259 #if 0 /* Don't change the current palette - may be used by other programs. | |
| 260 * The application can't do anything with the display surface until | |
| 261 * a video mode has been set anyway. :) | |
| 262 */ | |
| 263 /* If we have a palettized surface, create a default palette */ | |
| 264 if ( SDL_VideoSurface->format->palette ) { | |
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265 SDL_PixelFormat *vf = SDL_VideoSurface->format; |
| 0 | 266 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 267 video->SetColors(video, | |
| 268 0, vf->palette->ncolors, vf->palette->colors); | |
| 269 } | |
| 270 #endif | |
| 271 video->info.vfmt = SDL_VideoSurface->format; | |
| 272 | |
| 273 /* Start the event loop */ | |
| 274 if ( SDL_StartEventLoop(flags) < 0 ) { | |
| 275 SDL_VideoQuit(); | |
| 276 return(-1); | |
| 277 } | |
| 278 SDL_CursorInit(flags & SDL_INIT_EVENTTHREAD); | |
| 279 | |
| 280 /* We're ready to go! */ | |
| 281 return(0); | |
| 282 } | |
| 283 | |
| 284 char *SDL_VideoDriverName(char *namebuf, int maxlen) | |
| 285 { | |
| 286 if ( current_video != NULL ) { | |
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287 SDL_strlcpy(namebuf, current_video->name, maxlen); |
| 0 | 288 return(namebuf); |
| 289 } | |
| 290 return(NULL); | |
| 291 } | |
| 292 | |
| 293 /* | |
| 294 * Get the current display surface | |
| 295 */ | |
| 296 SDL_Surface *SDL_GetVideoSurface(void) | |
| 297 { | |
| 298 SDL_Surface *visible; | |
| 299 | |
| 300 visible = NULL; | |
| 301 if ( current_video ) { | |
| 302 visible = current_video->visible; | |
| 303 } | |
| 304 return(visible); | |
| 305 } | |
| 306 | |
| 307 /* | |
| 308 * Get the current information about the video hardware | |
| 309 */ | |
| 310 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
| 311 { | |
| 312 const SDL_VideoInfo *info; | |
| 313 | |
| 314 info = NULL; | |
| 315 if ( current_video ) { | |
| 316 info = ¤t_video->info; | |
| 317 } | |
| 318 return(info); | |
| 319 } | |
| 320 | |
| 321 /* | |
| 322 * Return a pointer to an array of available screen dimensions for the | |
| 323 * given format, sorted largest to smallest. Returns NULL if there are | |
| 324 * no dimensions available for a particular format, or (SDL_Rect **)-1 | |
| 325 * if any dimension is okay for the given format. If 'format' is NULL, | |
| 326 * the mode list will be for the format given by SDL_GetVideoInfo()->vfmt | |
| 327 */ | |
| 328 SDL_Rect ** SDL_ListModes (SDL_PixelFormat *format, Uint32 flags) | |
| 329 { | |
| 330 SDL_VideoDevice *video = current_video; | |
| 331 SDL_VideoDevice *this = current_video; | |
| 332 SDL_Rect **modes; | |
| 333 | |
| 334 modes = NULL; | |
| 335 if ( SDL_VideoSurface ) { | |
| 336 if ( format == NULL ) { | |
| 337 format = SDL_VideoSurface->format; | |
| 338 } | |
| 339 modes = video->ListModes(this, format, flags); | |
| 340 } | |
| 341 return(modes); | |
| 342 } | |
| 343 | |
| 344 /* | |
| 345 * Check to see if a particular video mode is supported. | |
| 346 * It returns 0 if the requested mode is not supported under any bit depth, | |
| 347 * or returns the bits-per-pixel of the closest available mode with the | |
| 348 * given width and height. If this bits-per-pixel is different from the | |
| 349 * one used when setting the video mode, SDL_SetVideoMode() will succeed, | |
| 350 * but will emulate the requested bits-per-pixel with a shadow surface. | |
| 351 */ | |
| 352 static Uint8 SDL_closest_depths[4][8] = { | |
| 353 /* 8 bit closest depth ordering */ | |
| 354 { 0, 8, 16, 15, 32, 24, 0, 0 }, | |
| 355 /* 15,16 bit closest depth ordering */ | |
| 356 { 0, 16, 15, 32, 24, 8, 0, 0 }, | |
| 357 /* 24 bit closest depth ordering */ | |
| 358 { 0, 24, 32, 16, 15, 8, 0, 0 }, | |
| 359 /* 32 bit closest depth ordering */ | |
| 360 { 0, 32, 16, 15, 24, 8, 0, 0 } | |
| 361 }; | |
| 362 | |
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363 |
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364 #ifdef __MACOS__ /* MPW optimization bug? */ |
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365 #define NEGATIVE_ONE 0xFFFFFFFF |
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366 #else |
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367 #define NEGATIVE_ONE -1 |
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368 #endif |
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369 |
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370 int SDL_VideoModeOK (int width, int height, int bpp, Uint32 flags) |
| 0 | 371 { |
| 372 int table, b, i; | |
| 373 int supported; | |
| 374 SDL_PixelFormat format; | |
| 375 SDL_Rect **sizes; | |
| 376 | |
| 377 /* Currently 1 and 4 bpp are not supported */ | |
| 378 if ( bpp < 8 || bpp > 32 ) { | |
| 379 return(0); | |
| 380 } | |
|
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381 if ( (width <= 0) || (height <= 0) ) { |
| 0 | 382 return(0); |
| 383 } | |
| 384 | |
| 385 /* Search through the list valid of modes */ | |
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386 SDL_memset(&format, 0, sizeof(format)); |
| 0 | 387 supported = 0; |
| 388 table = ((bpp+7)/8)-1; | |
| 389 SDL_closest_depths[table][0] = bpp; | |
| 390 SDL_closest_depths[table][7] = 0; | |
| 391 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 392 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 393 sizes = SDL_ListModes(&format, flags); | |
| 394 if ( sizes == (SDL_Rect **)0 ) { | |
| 395 /* No sizes supported at this bit-depth */ | |
| 396 continue; | |
| 397 } else | |
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398 if (sizes == (SDL_Rect **)NEGATIVE_ONE) { |
| 0 | 399 /* Any size supported at this bit-depth */ |
| 400 supported = 1; | |
| 401 continue; | |
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402 } else if (current_video->handles_any_size) { |
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403 /* Driver can center a smaller surface to simulate fullscreen */ |
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404 for ( i=0; sizes[i]; ++i ) { |
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405 if ((sizes[i]->w >= width) && (sizes[i]->h >= height)) { |
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406 supported = 1; /* this mode can fit the centered window. */ |
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407 break; |
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408 } |
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409 } |
| 0 | 410 } else |
| 411 for ( i=0; sizes[i]; ++i ) { | |
| 412 if ((sizes[i]->w == width) && (sizes[i]->h == height)) { | |
| 413 supported = 1; | |
| 414 break; | |
| 415 } | |
| 416 } | |
| 417 } | |
| 418 if ( supported ) { | |
| 419 --b; | |
| 420 return(SDL_closest_depths[table][b]); | |
| 421 } else { | |
| 422 return(0); | |
| 423 } | |
| 424 } | |
| 425 | |
| 426 /* | |
| 427 * Get the closest non-emulated video mode to the one requested | |
| 428 */ | |
| 429 static int SDL_GetVideoMode (int *w, int *h, int *BitsPerPixel, Uint32 flags) | |
| 430 { | |
| 431 int table, b, i; | |
| 432 int supported; | |
| 433 int native_bpp; | |
| 434 SDL_PixelFormat format; | |
| 435 SDL_Rect **sizes; | |
| 436 | |
|
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437 /* Check parameters */ |
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438 if ( *BitsPerPixel < 8 || *BitsPerPixel > 32 ) { |
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439 SDL_SetError("Invalid bits per pixel (range is {8...32})"); |
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440 return(0); |
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441 } |
|
430
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442 if ((*w <= 0) || (*h <= 0)) { |
|
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443 SDL_SetError("Invalid width or height"); |
|
430
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444 return(0); |
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445 } |
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446 |
| 0 | 447 /* Try the original video mode, get the closest depth */ |
| 448 native_bpp = SDL_VideoModeOK(*w, *h, *BitsPerPixel, flags); | |
| 449 if ( native_bpp == *BitsPerPixel ) { | |
| 450 return(1); | |
| 451 } | |
| 452 if ( native_bpp > 0 ) { | |
| 453 *BitsPerPixel = native_bpp; | |
| 454 return(1); | |
| 455 } | |
| 456 | |
| 457 /* No exact size match at any depth, look for closest match */ | |
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458 SDL_memset(&format, 0, sizeof(format)); |
| 0 | 459 supported = 0; |
| 460 table = ((*BitsPerPixel+7)/8)-1; | |
| 461 SDL_closest_depths[table][0] = *BitsPerPixel; | |
| 462 SDL_closest_depths[table][7] = SDL_VideoSurface->format->BitsPerPixel; | |
| 463 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
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464 int best; |
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465 |
| 0 | 466 format.BitsPerPixel = SDL_closest_depths[table][b]; |
| 467 sizes = SDL_ListModes(&format, flags); | |
| 468 if ( sizes == (SDL_Rect **)0 ) { | |
| 469 /* No sizes supported at this bit-depth */ | |
| 470 continue; | |
| 471 } | |
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472 best=0; |
| 0 | 473 for ( i=0; sizes[i]; ++i ) { |
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474 /* Mode with both dimensions bigger or equal than asked ? */ |
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475 if ((sizes[i]->w >= *w) && (sizes[i]->h >= *h)) { |
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476 /* Mode with any dimension smaller or equal than current best ? */ |
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477 if ((sizes[i]->w <= sizes[best]->w) || (sizes[i]->h <= sizes[best]->h)) { |
|
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478 /* Now choose the mode that has less pixels */ |
|
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479 if ((sizes[i]->w * sizes[i]->h) <= (sizes[best]->w * sizes[best]->h)) { |
|
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480 best=i; |
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481 supported = 1; |
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482 } |
| 0 | 483 } |
| 484 } | |
| 485 } | |
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486 if (supported) { |
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487 *w=sizes[best]->w; |
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488 *h=sizes[best]->h; |
| 0 | 489 *BitsPerPixel = SDL_closest_depths[table][b]; |
| 490 } | |
| 491 } | |
| 492 if ( ! supported ) { | |
| 493 SDL_SetError("No video mode large enough for %dx%d", *w, *h); | |
| 494 } | |
| 495 return(supported); | |
| 496 } | |
| 497 | |
| 498 /* This should probably go somewhere else -- like SDL_surface.c */ | |
| 499 static void SDL_ClearSurface(SDL_Surface *surface) | |
| 500 { | |
| 501 Uint32 black; | |
| 502 | |
| 503 black = SDL_MapRGB(surface->format, 0, 0, 0); | |
| 504 SDL_FillRect(surface, NULL, black); | |
| 505 if ((surface->flags&SDL_HWSURFACE) && (surface->flags&SDL_DOUBLEBUF)) { | |
| 506 SDL_Flip(surface); | |
| 507 SDL_FillRect(surface, NULL, black); | |
| 508 } | |
|
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509 if (surface->flags&SDL_FULLSCREEN) { |
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510 SDL_Flip(surface); |
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511 } |
| 0 | 512 } |
| 513 | |
| 514 /* | |
| 515 * Create a shadow surface suitable for fooling the app. :-) | |
| 516 */ | |
| 517 static void SDL_CreateShadowSurface(int depth) | |
| 518 { | |
| 519 Uint32 Rmask, Gmask, Bmask; | |
| 520 | |
| 521 /* Allocate the shadow surface */ | |
| 522 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 523 Rmask = (SDL_VideoSurface->format)->Rmask; | |
| 524 Gmask = (SDL_VideoSurface->format)->Gmask; | |
| 525 Bmask = (SDL_VideoSurface->format)->Bmask; | |
| 526 } else { | |
| 527 Rmask = Gmask = Bmask = 0; | |
| 528 } | |
| 529 SDL_ShadowSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
| 530 SDL_VideoSurface->w, SDL_VideoSurface->h, | |
| 531 depth, Rmask, Gmask, Bmask, 0); | |
| 532 if ( SDL_ShadowSurface == NULL ) { | |
| 533 return; | |
| 534 } | |
| 535 | |
| 536 /* 8-bit shadow surfaces report that they have exclusive palette */ | |
| 537 if ( SDL_ShadowSurface->format->palette ) { | |
| 538 SDL_ShadowSurface->flags |= SDL_HWPALETTE; | |
| 539 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
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540 SDL_memcpy(SDL_ShadowSurface->format->palette->colors, |
| 0 | 541 SDL_VideoSurface->format->palette->colors, |
| 542 SDL_VideoSurface->format->palette->ncolors* | |
| 543 sizeof(SDL_Color)); | |
| 544 } else { | |
| 545 SDL_DitherColors( | |
| 546 SDL_ShadowSurface->format->palette->colors, depth); | |
| 547 } | |
| 548 } | |
| 549 | |
| 550 /* If the video surface is resizable, the shadow should say so */ | |
| 551 if ( (SDL_VideoSurface->flags & SDL_RESIZABLE) == SDL_RESIZABLE ) { | |
| 552 SDL_ShadowSurface->flags |= SDL_RESIZABLE; | |
| 553 } | |
| 554 /* If the video surface has no frame, the shadow should say so */ | |
| 555 if ( (SDL_VideoSurface->flags & SDL_NOFRAME) == SDL_NOFRAME ) { | |
| 556 SDL_ShadowSurface->flags |= SDL_NOFRAME; | |
| 557 } | |
| 558 /* If the video surface is fullscreen, the shadow should say so */ | |
| 559 if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 560 SDL_ShadowSurface->flags |= SDL_FULLSCREEN; | |
| 561 } | |
| 562 /* If the video surface is flippable, the shadow should say so */ | |
| 563 if ( (SDL_VideoSurface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 564 SDL_ShadowSurface->flags |= SDL_DOUBLEBUF; | |
| 565 } | |
| 566 return; | |
| 567 } | |
| 568 | |
|
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569 #ifdef __QNXNTO__ |
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570 #include <sys/neutrino.h> |
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571 #endif /* __QNXNTO__ */ |
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572 |
| 0 | 573 /* |
| 574 * Set the requested video mode, allocating a shadow buffer if necessary. | |
| 575 */ | |
| 576 SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags) | |
| 577 { | |
| 578 SDL_VideoDevice *video, *this; | |
| 579 SDL_Surface *prev_mode, *mode; | |
| 580 int video_w; | |
| 581 int video_h; | |
| 582 int video_bpp; | |
| 583 int is_opengl; | |
| 584 SDL_GrabMode saved_grab; | |
| 585 | |
| 586 /* Start up the video driver, if necessary.. | |
| 587 WARNING: This is the only function protected this way! | |
| 588 */ | |
| 589 if ( ! current_video ) { | |
| 590 if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE) < 0 ) { | |
| 591 return(NULL); | |
| 592 } | |
| 593 } | |
| 594 this = video = current_video; | |
| 595 | |
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596 /* Default to the current width and height */ |
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597 if ( width == 0 ) { |
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598 width = video->info.current_w; |
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599 } |
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600 if ( height == 0 ) { |
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601 height = video->info.current_h; |
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602 } |
| 0 | 603 /* Default to the current video bpp */ |
| 604 if ( bpp == 0 ) { | |
| 605 flags |= SDL_ANYFORMAT; | |
| 606 bpp = SDL_VideoSurface->format->BitsPerPixel; | |
| 607 } | |
| 608 | |
| 609 /* Get a good video mode, the closest one possible */ | |
| 610 video_w = width; | |
| 611 video_h = height; | |
| 612 video_bpp = bpp; | |
| 613 if ( ! SDL_GetVideoMode(&video_w, &video_h, &video_bpp, flags) ) { | |
| 614 return(NULL); | |
| 615 } | |
| 616 | |
| 617 /* Check the requested flags */ | |
| 618 /* There's no palette in > 8 bits-per-pixel mode */ | |
| 619 if ( video_bpp > 8 ) { | |
| 620 flags &= ~SDL_HWPALETTE; | |
| 621 } | |
| 622 #if 0 | |
| 623 if ( (flags&SDL_FULLSCREEN) != SDL_FULLSCREEN ) { | |
| 624 /* There's no windowed double-buffering */ | |
| 625 flags &= ~SDL_DOUBLEBUF; | |
| 626 } | |
| 627 #endif | |
| 628 if ( (flags&SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 629 /* Use hardware surfaces when double-buffering */ | |
| 630 flags |= SDL_HWSURFACE; | |
| 631 } | |
| 632 | |
| 633 is_opengl = ( ( flags & SDL_OPENGL ) == SDL_OPENGL ); | |
| 634 if ( is_opengl ) { | |
| 635 /* These flags are for 2D video modes only */ | |
| 636 flags &= ~(SDL_HWSURFACE|SDL_DOUBLEBUF); | |
| 637 } | |
| 638 | |
|
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639 /* Reset the keyboard here so event callbacks can run */ |
|
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640 SDL_ResetKeyboard(); |
|
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641 SDL_ResetMouse(); |
| 1296 | 642 SDL_cursorstate &= ~CURSOR_USINGSW; |
|
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643 |
| 0 | 644 /* Clean up any previous video mode */ |
| 645 if ( SDL_PublicSurface != NULL ) { | |
| 646 SDL_PublicSurface = NULL; | |
| 647 } | |
| 648 if ( SDL_ShadowSurface != NULL ) { | |
| 649 SDL_Surface *ready_to_go; | |
| 650 ready_to_go = SDL_ShadowSurface; | |
| 651 SDL_ShadowSurface = NULL; | |
| 652 SDL_FreeSurface(ready_to_go); | |
| 653 } | |
| 654 if ( video->physpal ) { | |
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655 SDL_free(video->physpal->colors); |
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656 SDL_free(video->physpal); |
| 0 | 657 video->physpal = NULL; |
| 658 } | |
| 659 if( video->gammacols) { | |
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660 SDL_free(video->gammacols); |
| 0 | 661 video->gammacols = NULL; |
| 662 } | |
| 663 | |
| 664 /* Save the previous grab state and turn off grab for mode switch */ | |
| 665 saved_grab = SDL_WM_GrabInputOff(); | |
| 666 | |
| 667 /* Try to set the video mode, along with offset and clipping */ | |
| 668 prev_mode = SDL_VideoSurface; | |
| 669 SDL_LockCursor(); | |
| 670 SDL_VideoSurface = NULL; /* In case it's freed by driver */ | |
| 671 mode = video->SetVideoMode(this, prev_mode,video_w,video_h,video_bpp,flags); | |
| 672 if ( mode ) { /* Prevent resize events from mode change */ | |
| 1190 | 673 /* But not on OS/2 */ |
| 674 #ifndef __OS2__ | |
| 0 | 675 SDL_PrivateResize(mode->w, mode->h); |
| 1190 | 676 #endif |
|
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677 |
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678 /* Sam - If we asked for OpenGL mode, and didn't get it, fail */ |
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679 if ( is_opengl && !(mode->flags & SDL_OPENGL) ) { |
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680 mode = NULL; |
|
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681 SDL_SetError("OpenGL not available"); |
|
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682 } |
|
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683 } |
| 0 | 684 /* |
| 685 * rcg11292000 | |
| 686 * If you try to set an SDL_OPENGL surface, and fail to find a | |
| 687 * matching visual, then the next call to SDL_SetVideoMode() | |
| 688 * will segfault, since we no longer point to a dummy surface, | |
| 689 * but rather NULL. | |
| 690 * Sam 11/29/00 | |
| 691 * WARNING, we need to make sure that the previous mode hasn't | |
| 692 * already been freed by the video driver. What do we do in | |
| 693 * that case? Should we call SDL_VideoInit() again? | |
| 694 */ | |
| 695 SDL_VideoSurface = (mode != NULL) ? mode : prev_mode; | |
| 696 | |
| 697 if ( (mode != NULL) && (!is_opengl) ) { | |
| 698 /* Sanity check */ | |
| 699 if ( (mode->w < width) || (mode->h < height) ) { | |
| 700 SDL_SetError("Video mode smaller than requested"); | |
| 701 return(NULL); | |
| 702 } | |
| 703 | |
| 704 /* If we have a palettized surface, create a default palette */ | |
| 705 if ( mode->format->palette ) { | |
|
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706 SDL_PixelFormat *vf = mode->format; |
| 0 | 707 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 708 video->SetColors(this, 0, vf->palette->ncolors, | |
| 709 vf->palette->colors); | |
| 710 } | |
| 711 | |
| 712 /* Clear the surface to black */ | |
| 713 video->offset_x = 0; | |
| 714 video->offset_y = 0; | |
| 715 mode->offset = 0; | |
| 716 SDL_SetClipRect(mode, NULL); | |
| 717 SDL_ClearSurface(mode); | |
| 718 | |
| 719 /* Now adjust the offsets to match the desired mode */ | |
| 720 video->offset_x = (mode->w-width)/2; | |
| 721 video->offset_y = (mode->h-height)/2; | |
| 722 mode->offset = video->offset_y*mode->pitch + | |
| 723 video->offset_x*mode->format->BytesPerPixel; | |
| 724 #ifdef DEBUG_VIDEO | |
| 725 fprintf(stderr, | |
| 726 "Requested mode: %dx%dx%d, obtained mode %dx%dx%d (offset %d)\n", | |
| 727 width, height, bpp, | |
| 728 mode->w, mode->h, mode->format->BitsPerPixel, mode->offset); | |
| 729 #endif | |
| 730 mode->w = width; | |
| 731 mode->h = height; | |
| 732 SDL_SetClipRect(mode, NULL); | |
| 733 } | |
| 734 SDL_ResetCursor(); | |
| 735 SDL_UnlockCursor(); | |
| 736 | |
| 737 /* If we failed setting a video mode, return NULL... (Uh Oh!) */ | |
| 738 if ( mode == NULL ) { | |
| 739 return(NULL); | |
| 740 } | |
| 741 | |
| 742 /* If there is no window manager, set the SDL_NOFRAME flag */ | |
| 743 if ( ! video->info.wm_available ) { | |
| 744 mode->flags |= SDL_NOFRAME; | |
| 745 } | |
| 746 | |
| 747 /* Reset the mouse cursor and grab for new video mode */ | |
| 748 SDL_SetCursor(NULL); | |
| 749 if ( video->UpdateMouse ) { | |
| 750 video->UpdateMouse(this); | |
| 751 } | |
| 752 SDL_WM_GrabInput(saved_grab); | |
| 753 SDL_GetRelativeMouseState(NULL, NULL); /* Clear first large delta */ | |
| 754 | |
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755 #if SDL_VIDEO_OPENGL |
|
650
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756 /* Load GL symbols (before MakeCurrent, where we need glGetString). */ |
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757 if ( flags & (SDL_OPENGL | SDL_OPENGLBLIT) ) { |
|
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758 |
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759 #if defined(__QNXNTO__) && (_NTO_VERSION < 630) |
|
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760 #define __SDL_NOGETPROCADDR__ |
|
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761 #elif defined(__MINT__) |
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762 #define __SDL_NOGETPROCADDR__ |
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763 #endif |
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764 #ifdef __SDL_NOGETPROCADDR__ |
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765 #define SDL_PROC(ret,func,params) video->func=func; |
|
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766 #else |
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767 #define SDL_PROC(ret,func,params) \ |
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768 do { \ |
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769 video->func = SDL_GL_GetProcAddress(#func); \ |
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770 if ( ! video->func ) { \ |
|
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771 SDL_SetError("Couldn't load GL function %s: %s\n", #func, SDL_GetError()); \ |
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772 return(NULL); \ |
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773 } \ |
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774 } while ( 0 ); |
|
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775 |
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776 #endif /* __SDL_NOGETPROCADDR__ */ |
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777 |
|
650
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778 #include "SDL_glfuncs.h" |
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779 #undef SDL_PROC |
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780 } |
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781 #endif /* SDL_VIDEO_OPENGL */ |
|
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782 |
| 0 | 783 /* If we're running OpenGL, make the context current */ |
| 784 if ( (video->screen->flags & SDL_OPENGL) && | |
| 785 video->GL_MakeCurrent ) { | |
| 786 if ( video->GL_MakeCurrent(this) < 0 ) { | |
| 787 return(NULL); | |
| 788 } | |
| 789 } | |
| 790 | |
| 791 /* Set up a fake SDL surface for OpenGL "blitting" */ | |
| 792 if ( (flags & SDL_OPENGLBLIT) == SDL_OPENGLBLIT ) { | |
| 793 /* Load GL functions for performing the texture updates */ | |
|
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794 #if SDL_VIDEO_OPENGL |
| 0 | 795 |
| 796 /* Create a software surface for blitting */ | |
| 797 #ifdef GL_VERSION_1_2 | |
| 798 /* If the implementation either supports the packed pixels | |
| 799 extension, or implements the core OpenGL 1.2 API, it will | |
| 800 support the GL_UNSIGNED_SHORT_5_6_5 texture format. | |
| 801 */ | |
| 802 if ( (bpp == 16) && | |
|
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803 (SDL_strstr((const char *)video->glGetString(GL_EXTENSIONS), "GL_EXT_packed_pixels") || |
|
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Configure dynamically generates SDL_config.h
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parents:
1338
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|
804 (SDL_atof((const char *)video->glGetString(GL_VERSION)) >= 1.2f)) |
|
282
b42d80e73896
Fixed SDL_OPENGLBLIT with OpenGL API newer than 1.2
Sam Lantinga <slouken@libsdl.org>
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|
805 ) { |
| 0 | 806 video->is_32bit = 0; |
| 807 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 808 flags, | |
| 809 width, | |
| 810 height, | |
| 811 16, | |
| 812 31 << 11, | |
| 813 63 << 5, | |
| 814 31, | |
| 815 0 | |
| 816 ); | |
| 817 } | |
| 818 else | |
| 819 #endif /* OpenGL 1.2 */ | |
| 820 { | |
| 821 video->is_32bit = 1; | |
| 822 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 823 flags, | |
| 824 width, | |
| 825 height, | |
| 826 32, | |
| 827 #if SDL_BYTEORDER == SDL_LIL_ENDIAN | |
| 828 0x000000FF, | |
| 829 0x0000FF00, | |
| 830 0x00FF0000, | |
| 831 0xFF000000 | |
| 832 #else | |
| 833 0xFF000000, | |
| 834 0x00FF0000, | |
| 835 0x0000FF00, | |
| 836 0x000000FF | |
| 837 #endif | |
| 838 ); | |
| 839 } | |
| 840 if ( ! SDL_VideoSurface ) { | |
| 841 return(NULL); | |
| 842 } | |
| 843 SDL_VideoSurface->flags = mode->flags | SDL_OPENGLBLIT; | |
| 844 | |
| 845 /* Free the original video mode surface (is this safe?) */ | |
| 846 SDL_FreeSurface(mode); | |
| 847 | |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
848 /* Set the surface completely opaque & white by default */ |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
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|
849 SDL_memset( SDL_VideoSurface->pixels, 255, SDL_VideoSurface->h * SDL_VideoSurface->pitch ); |
| 0 | 850 video->glGenTextures( 1, &video->texture ); |
| 851 video->glBindTexture( GL_TEXTURE_2D, video->texture ); | |
| 852 video->glTexImage2D( | |
| 853 GL_TEXTURE_2D, | |
| 854 0, | |
| 855 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 856 256, | |
| 857 256, | |
| 858 0, | |
| 859 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 860 #ifdef GL_VERSION_1_2 | |
| 861 video->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 862 #else | |
| 863 GL_UNSIGNED_BYTE, | |
| 864 #endif | |
| 865 NULL); | |
| 866 | |
| 867 video->UpdateRects = SDL_GL_UpdateRectsLock; | |
| 868 #else | |
|
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New configure-based build system. Still work in progress, but much improved
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869 SDL_SetError("Somebody forgot to #define SDL_VIDEO_OPENGL"); |
| 0 | 870 return(NULL); |
| 871 #endif | |
| 872 } | |
| 873 | |
| 874 /* Create a shadow surface if necessary */ | |
| 875 /* There are three conditions under which we create a shadow surface: | |
| 876 1. We need a particular bits-per-pixel that we didn't get. | |
| 877 2. We need a hardware palette and didn't get one. | |
| 878 3. We need a software surface and got a hardware surface. | |
| 879 */ | |
| 880 if ( !(SDL_VideoSurface->flags & SDL_OPENGL) && | |
| 881 ( | |
| 882 ( !(flags&SDL_ANYFORMAT) && | |
| 883 (SDL_VideoSurface->format->BitsPerPixel != bpp)) || | |
| 884 ( (flags&SDL_HWPALETTE) && | |
| 885 !(SDL_VideoSurface->flags&SDL_HWPALETTE)) || | |
| 886 /* If the surface is in hardware, video writes are visible | |
| 887 as soon as they are performed, so we need to buffer them | |
| 888 */ | |
| 889 ( ((flags&SDL_HWSURFACE) == SDL_SWSURFACE) && | |
|
580
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If a double-buffered surface was requested, and a plain hardware surface
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567
diff
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|
890 (SDL_VideoSurface->flags&SDL_HWSURFACE)) || |
|
be6495850a62
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891 ( (flags&SDL_DOUBLEBUF) && |
|
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If a double-buffered surface was requested, and a plain hardware surface
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|
892 (SDL_VideoSurface->flags&SDL_HWSURFACE) && |
|
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|
893 !(SDL_VideoSurface->flags&SDL_DOUBLEBUF)) |
| 0 | 894 ) ) { |
| 895 SDL_CreateShadowSurface(bpp); | |
| 896 if ( SDL_ShadowSurface == NULL ) { | |
| 897 SDL_SetError("Couldn't create shadow surface"); | |
| 898 return(NULL); | |
| 899 } | |
| 900 SDL_PublicSurface = SDL_ShadowSurface; | |
| 901 } else { | |
| 902 SDL_PublicSurface = SDL_VideoSurface; | |
| 903 } | |
| 904 video->info.vfmt = SDL_VideoSurface->format; | |
|
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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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905 video->info.current_w = SDL_VideoSurface->w; |
|
8d9bb0cf2c2a
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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906 video->info.current_h = SDL_VideoSurface->h; |
| 0 | 907 |
| 908 /* We're done! */ | |
| 909 return(SDL_PublicSurface); | |
| 910 } | |
| 911 | |
| 912 /* | |
| 913 * Convert a surface into the video pixel format. | |
| 914 */ | |
| 915 SDL_Surface * SDL_DisplayFormat (SDL_Surface *surface) | |
| 916 { | |
| 917 Uint32 flags; | |
| 918 | |
| 919 if ( ! SDL_PublicSurface ) { | |
| 920 SDL_SetError("No video mode has been set"); | |
| 921 return(NULL); | |
| 922 } | |
| 923 /* Set the flags appropriate for copying to display surface */ | |
|
313
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*** empty log message ***
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diff
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|
924 if (((SDL_PublicSurface->flags&SDL_HWSURFACE) == SDL_HWSURFACE) && current_video->info.blit_hw) |
|
306
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|
925 flags = SDL_HWSURFACE; |
|
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926 else |
|
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|
927 flags = SDL_SWSURFACE; |
| 0 | 928 #ifdef AUTORLE_DISPLAYFORMAT |
| 929 flags |= (surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA)); | |
| 930 flags |= SDL_RLEACCELOK; | |
| 931 #else | |
| 932 flags |= surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA|SDL_RLEACCELOK); | |
| 933 #endif | |
| 934 return(SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags)); | |
| 935 } | |
| 936 | |
| 937 /* | |
| 938 * Convert a surface into a format that's suitable for blitting to | |
| 939 * the screen, but including an alpha channel. | |
| 940 */ | |
| 941 SDL_Surface *SDL_DisplayFormatAlpha(SDL_Surface *surface) | |
| 942 { | |
| 943 SDL_PixelFormat *vf; | |
| 944 SDL_PixelFormat *format; | |
| 945 SDL_Surface *converted; | |
| 946 Uint32 flags; | |
| 947 /* default to ARGB8888 */ | |
| 948 Uint32 amask = 0xff000000; | |
| 949 Uint32 rmask = 0x00ff0000; | |
| 950 Uint32 gmask = 0x0000ff00; | |
| 951 Uint32 bmask = 0x000000ff; | |
| 952 | |
| 953 if ( ! SDL_PublicSurface ) { | |
| 954 SDL_SetError("No video mode has been set"); | |
| 955 return(NULL); | |
| 956 } | |
| 957 vf = SDL_PublicSurface->format; | |
| 958 | |
| 959 switch(vf->BytesPerPixel) { | |
| 960 case 2: | |
| 961 /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}. | |
| 962 For anything else (like ARGB4444) it doesn't matter | |
| 963 since we have no special code for it anyway */ | |
| 964 if ( (vf->Rmask == 0x1f) && | |
| 965 (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) { | |
| 966 rmask = 0xff; | |
| 967 bmask = 0xff0000; | |
| 968 } | |
| 969 break; | |
| 970 | |
| 971 case 3: | |
| 972 case 4: | |
| 973 /* Keep the video format, as long as the high 8 bits are | |
| 974 unused or alpha */ | |
| 975 if ( (vf->Rmask == 0xff) && (vf->Bmask == 0xff0000) ) { | |
| 976 rmask = 0xff; | |
| 977 bmask = 0xff0000; | |
| 978 } | |
| 979 break; | |
| 980 | |
| 981 default: | |
| 982 /* We have no other optimised formats right now. When/if a new | |
| 983 optimised alpha format is written, add the converter here */ | |
| 984 break; | |
| 985 } | |
| 986 format = SDL_AllocFormat(32, rmask, gmask, bmask, amask); | |
| 987 flags = SDL_PublicSurface->flags & SDL_HWSURFACE; | |
| 988 flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); | |
| 989 converted = SDL_ConvertSurface(surface, format, flags); | |
| 990 SDL_FreeFormat(format); | |
| 991 return(converted); | |
| 992 } | |
| 993 | |
| 994 /* | |
| 995 * Update a specific portion of the physical screen | |
| 996 */ | |
| 997 void SDL_UpdateRect(SDL_Surface *screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h) | |
| 998 { | |
| 999 if ( screen ) { | |
| 1000 SDL_Rect rect; | |
| 1001 | |
| 1002 /* Perform some checking */ | |
| 1003 if ( w == 0 ) | |
| 1004 w = screen->w; | |
| 1005 if ( h == 0 ) | |
| 1006 h = screen->h; | |
| 1007 if ( (int)(x+w) > screen->w ) | |
| 1008 return; | |
| 1009 if ( (int)(y+h) > screen->h ) | |
| 1010 return; | |
| 1011 | |
| 1012 /* Fill the rectangle */ | |
|
1428
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Update for Visual C++ 6.0
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1013 rect.x = (Sint16)x; |
|
5f52867ba65c
Update for Visual C++ 6.0
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|
1014 rect.y = (Sint16)y; |
|
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Update for Visual C++ 6.0
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|
1015 rect.w = (Uint16)w; |
|
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Update for Visual C++ 6.0
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1016 rect.h = (Uint16)h; |
| 0 | 1017 SDL_UpdateRects(screen, 1, &rect); |
| 1018 } | |
| 1019 } | |
| 1020 void SDL_UpdateRects (SDL_Surface *screen, int numrects, SDL_Rect *rects) | |
| 1021 { | |
| 1022 int i; | |
| 1023 SDL_VideoDevice *video = current_video; | |
| 1024 SDL_VideoDevice *this = current_video; | |
| 1025 | |
|
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Don't crash if SDL_Flip() is called with an OpenGL mode set
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1026 if ( (screen->flags & (SDL_OPENGL | SDL_OPENGLBLIT)) == SDL_OPENGL ) { |
|
cf23b92602aa
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|
1027 SDL_SetError("OpenGL active, use SDL_GL_SwapBuffers()"); |
|
cf23b92602aa
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|
1028 return; |
|
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Don't crash if SDL_Flip() is called with an OpenGL mode set
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|
1029 } |
| 0 | 1030 if ( screen == SDL_ShadowSurface ) { |
| 1031 /* Blit the shadow surface using saved mapping */ | |
|
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|
1032 SDL_Palette *pal = screen->format->palette; |
| 0 | 1033 SDL_Color *saved_colors = NULL; |
|
488
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|
1034 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1035 /* simulated 8bpp, use correct physical palette */ |
| 1036 saved_colors = pal->colors; | |
| 1037 if ( video->gammacols ) { | |
| 1038 /* gamma-corrected palette */ | |
| 1039 pal->colors = video->gammacols; | |
| 1040 } else if ( video->physpal ) { | |
| 1041 /* physical palette different from logical */ | |
| 1042 pal->colors = video->physpal->colors; | |
| 1043 } | |
| 1044 } | |
| 1045 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { | |
| 1046 SDL_LockCursor(); | |
| 1047 SDL_DrawCursor(SDL_ShadowSurface); | |
| 1048 for ( i=0; i<numrects; ++i ) { | |
| 1049 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1050 SDL_VideoSurface, &rects[i]); | |
| 1051 } | |
| 1052 SDL_EraseCursor(SDL_ShadowSurface); | |
| 1053 SDL_UnlockCursor(); | |
| 1054 } else { | |
| 1055 for ( i=0; i<numrects; ++i ) { | |
| 1056 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1057 SDL_VideoSurface, &rects[i]); | |
| 1058 } | |
| 1059 } | |
|
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|
1060 if ( saved_colors ) { |
| 0 | 1061 pal->colors = saved_colors; |
|
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|
1062 } |
| 0 | 1063 |
| 1064 /* Fall through to video surface update */ | |
| 1065 screen = SDL_VideoSurface; | |
| 1066 } | |
| 1067 if ( screen == SDL_VideoSurface ) { | |
| 1068 /* Update the video surface */ | |
| 1069 if ( screen->offset ) { | |
| 1070 for ( i=0; i<numrects; ++i ) { | |
| 1071 rects[i].x += video->offset_x; | |
| 1072 rects[i].y += video->offset_y; | |
| 1073 } | |
| 1074 video->UpdateRects(this, numrects, rects); | |
| 1075 for ( i=0; i<numrects; ++i ) { | |
| 1076 rects[i].x -= video->offset_x; | |
| 1077 rects[i].y -= video->offset_y; | |
| 1078 } | |
| 1079 } else { | |
| 1080 video->UpdateRects(this, numrects, rects); | |
| 1081 } | |
| 1082 } | |
| 1083 } | |
| 1084 | |
| 1085 /* | |
| 1086 * Performs hardware double buffering, if possible, or a full update if not. | |
| 1087 */ | |
| 1088 int SDL_Flip(SDL_Surface *screen) | |
| 1089 { | |
| 1090 SDL_VideoDevice *video = current_video; | |
| 1091 /* Copy the shadow surface to the video surface */ | |
| 1092 if ( screen == SDL_ShadowSurface ) { | |
| 1093 SDL_Rect rect; | |
|
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|
1094 SDL_Palette *pal = screen->format->palette; |
| 0 | 1095 SDL_Color *saved_colors = NULL; |
|
488
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diff
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|
1096 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1097 /* simulated 8bpp, use correct physical palette */ |
| 1098 saved_colors = pal->colors; | |
| 1099 if ( video->gammacols ) { | |
| 1100 /* gamma-corrected palette */ | |
| 1101 pal->colors = video->gammacols; | |
| 1102 } else if ( video->physpal ) { | |
| 1103 /* physical palette different from logical */ | |
| 1104 pal->colors = video->physpal->colors; | |
| 1105 } | |
| 1106 } | |
| 1107 | |
| 1108 rect.x = 0; | |
| 1109 rect.y = 0; | |
| 1110 rect.w = screen->w; | |
| 1111 rect.h = screen->h; | |
|
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1112 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { |
|
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1113 SDL_LockCursor(); |
|
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1114 SDL_DrawCursor(SDL_ShadowSurface); |
|
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1115 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
|
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1116 SDL_VideoSurface, &rect); |
|
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1117 SDL_EraseCursor(SDL_ShadowSurface); |
|
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1118 SDL_UnlockCursor(); |
|
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1119 } else { |
|
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1120 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
|
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1121 SDL_VideoSurface, &rect); |
|
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1122 } |
|
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1123 if ( saved_colors ) { |
|
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1124 pal->colors = saved_colors; |
|
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1125 } |
| 0 | 1126 |
|
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1127 /* Fall through to video surface update */ |
| 0 | 1128 screen = SDL_VideoSurface; |
| 1129 } | |
| 1130 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 1131 SDL_VideoDevice *this = current_video; | |
| 1132 return(video->FlipHWSurface(this, SDL_VideoSurface)); | |
| 1133 } else { | |
| 1134 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1135 } | |
| 1136 return(0); | |
| 1137 } | |
| 1138 | |
| 1139 static void SetPalette_logical(SDL_Surface *screen, SDL_Color *colors, | |
| 1140 int firstcolor, int ncolors) | |
| 1141 { | |
|
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1142 SDL_Palette *pal = screen->format->palette; |
| 0 | 1143 SDL_Palette *vidpal; |
| 1144 | |
| 1145 if ( colors != (pal->colors + firstcolor) ) { | |
|
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1146 SDL_memcpy(pal->colors + firstcolor, colors, |
| 0 | 1147 ncolors * sizeof(*colors)); |
| 1148 } | |
| 1149 | |
| 3995 | 1150 if ( current_video && SDL_VideoSurface ) { |
| 1151 vidpal = SDL_VideoSurface->format->palette; | |
| 1152 if ( (screen == SDL_ShadowSurface) && vidpal ) { | |
| 1153 /* | |
| 1154 * This is a shadow surface, and the physical | |
| 1155 * framebuffer is also indexed. Propagate the | |
| 1156 * changes to its logical palette so that | |
| 1157 * updates are always identity blits | |
| 1158 */ | |
| 1159 SDL_memcpy(vidpal->colors + firstcolor, colors, | |
| 1160 ncolors * sizeof(*colors)); | |
| 1161 } | |
| 0 | 1162 } |
| 1163 SDL_FormatChanged(screen); | |
| 1164 } | |
| 1165 | |
| 1166 static int SetPalette_physical(SDL_Surface *screen, | |
| 1167 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1168 { | |
| 1169 SDL_VideoDevice *video = current_video; | |
| 1170 int gotall = 1; | |
| 1171 | |
| 1172 if ( video->physpal ) { | |
| 1173 /* We need to copy the new colors, since we haven't | |
| 1174 * already done the copy in the logical set above. | |
| 1175 */ | |
|
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|
1176 SDL_memcpy(video->physpal->colors + firstcolor, |
| 0 | 1177 colors, ncolors * sizeof(*colors)); |
| 1178 } | |
| 1179 if ( screen == SDL_ShadowSurface ) { | |
| 1180 if ( SDL_VideoSurface->flags & SDL_HWPALETTE ) { | |
| 1181 /* | |
| 1182 * The real screen is also indexed - set its physical | |
| 1183 * palette. The physical palette does not include the | |
| 1184 * gamma modification, we apply it directly instead, | |
| 1185 * but this only happens if we have hardware palette. | |
| 1186 */ | |
| 1187 screen = SDL_VideoSurface; | |
| 1188 } else { | |
| 1189 /* | |
| 1190 * The video surface is not indexed - invalidate any | |
| 1191 * active shadow-to-video blit mappings. | |
| 1192 */ | |
| 1193 if ( screen->map->dst == SDL_VideoSurface ) { | |
| 1194 SDL_InvalidateMap(screen->map); | |
| 1195 } | |
| 1196 if ( video->gamma ) { | |
| 1197 if( ! video->gammacols ) { | |
| 1198 SDL_Palette *pp = video->physpal; | |
| 1199 if(!pp) | |
| 1200 pp = screen->format->palette; | |
|
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|
1201 video->gammacols = SDL_malloc(pp->ncolors |
| 0 | 1202 * sizeof(SDL_Color)); |
| 1203 SDL_ApplyGamma(video->gamma, | |
| 1204 pp->colors, | |
| 1205 video->gammacols, | |
| 1206 pp->ncolors); | |
| 1207 } else { | |
| 1208 SDL_ApplyGamma(video->gamma, colors, | |
| 1209 video->gammacols | |
| 1210 + firstcolor, | |
| 1211 ncolors); | |
| 1212 } | |
| 1213 } | |
| 1214 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1215 } | |
| 1216 } | |
| 1217 | |
| 1218 if ( screen == SDL_VideoSurface ) { | |
| 1219 SDL_Color gcolors[256]; | |
| 1220 | |
|
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|
1221 if ( video->gamma ) { |
|
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|
1222 SDL_ApplyGamma(video->gamma, colors, gcolors, ncolors); |
| 0 | 1223 colors = gcolors; |
| 1224 } | |
| 1225 gotall = video->SetColors(video, firstcolor, ncolors, colors); | |
| 1226 if ( ! gotall ) { | |
| 1227 /* The video flags shouldn't have SDL_HWPALETTE, and | |
| 1228 the video driver is responsible for copying back the | |
| 1229 correct colors into the video surface palette. | |
| 1230 */ | |
| 1231 ; | |
| 1232 } | |
| 1233 SDL_CursorPaletteChanged(); | |
| 1234 } | |
| 1235 return gotall; | |
| 1236 } | |
| 1237 | |
| 1238 /* | |
| 1239 * Set the physical and/or logical colormap of a surface: | |
| 1240 * Only the screen has a physical colormap. It determines what is actually | |
| 1241 * sent to the display. | |
| 1242 * The logical colormap is used to map blits to/from the surface. | |
| 1243 * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL | |
| 1244 * | |
| 1245 * Return nonzero if all colours were set as requested, or 0 otherwise. | |
| 1246 */ | |
| 1247 int SDL_SetPalette(SDL_Surface *screen, int which, | |
| 1248 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1249 { | |
|
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|
1250 SDL_Palette *pal; |
| 0 | 1251 int gotall; |
| 1252 int palsize; | |
| 1253 | |
| 3995 | 1254 if ( !screen ) { |
| 34 | 1255 return 0; |
| 1256 } | |
| 3995 | 1257 if ( !current_video || screen != SDL_PublicSurface ) { |
|
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|
1258 /* only screens have physical palettes */ |
|
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|
1259 which &= ~SDL_PHYSPAL; |
| 3995 | 1260 } else if ( (screen->flags & SDL_HWPALETTE) != SDL_HWPALETTE ) { |
|
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|
1261 /* hardware palettes required for split colormaps */ |
|
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|
1262 which |= SDL_PHYSPAL | SDL_LOGPAL; |
| 0 | 1263 } |
| 1264 | |
| 1265 /* Verify the parameters */ | |
| 1266 pal = screen->format->palette; | |
| 1267 if( !pal ) { | |
|
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|
1268 return 0; /* not a palettized surface */ |
| 0 | 1269 } |
| 1270 gotall = 1; | |
| 1271 palsize = 1 << screen->format->BitsPerPixel; | |
| 1272 if ( ncolors > (palsize - firstcolor) ) { | |
|
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|
1273 ncolors = (palsize - firstcolor); |
| 0 | 1274 gotall = 0; |
| 1275 } | |
| 1276 | |
| 1277 if ( which & SDL_LOGPAL ) { | |
| 1278 /* | |
| 1279 * Logical palette change: The actual screen isn't affected, | |
| 1280 * but the internal colormap is altered so that the | |
| 1281 * interpretation of the pixel values (for blits etc) is | |
| 1282 * changed. | |
| 1283 */ | |
|
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|
1284 SetPalette_logical(screen, colors, firstcolor, ncolors); |
| 0 | 1285 } |
| 1286 if ( which & SDL_PHYSPAL ) { | |
| 1287 SDL_VideoDevice *video = current_video; | |
|
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|
1288 /* |
| 0 | 1289 * Physical palette change: This doesn't affect the |
| 1290 * program's idea of what the screen looks like, but changes | |
| 1291 * its actual appearance. | |
| 1292 */ | |
| 3995 | 1293 if ( !video->physpal && !(which & SDL_LOGPAL) ) { |
| 0 | 1294 /* Lazy physical palette allocation */ |
|
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|
1295 int size; |
|
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|
1296 SDL_Palette *pp = SDL_malloc(sizeof(*pp)); |
|
944
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Date: Wed, 28 Jul 2004 14:56:57 +0800
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|
1297 if ( !pp ) { |
|
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|
1298 return 0; |
|
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|
1299 } |
| 3995 | 1300 video->physpal = pp; |
| 0 | 1301 pp->ncolors = pal->ncolors; |
| 1302 size = pp->ncolors * sizeof(SDL_Color); | |
|
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|
1303 pp->colors = SDL_malloc(size); |
|
944
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Date: Wed, 28 Jul 2004 14:56:57 +0800
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|
1304 if ( !pp->colors ) { |
|
cdea7cbc3e23
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|
1305 return 0; |
|
cdea7cbc3e23
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|
1306 } |
|
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|
1307 SDL_memcpy(pp->colors, pal->colors, size); |
| 0 | 1308 } |
| 1309 if ( ! SetPalette_physical(screen, | |
| 1310 colors, firstcolor, ncolors) ) { | |
| 1311 gotall = 0; | |
| 1312 } | |
| 1313 } | |
| 1314 return gotall; | |
| 1315 } | |
| 1316 | |
| 1317 int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor, | |
| 1318 int ncolors) | |
| 1319 { | |
|
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|
1320 return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, |
| 0 | 1321 colors, firstcolor, ncolors); |
| 1322 } | |
| 1323 | |
| 1324 /* | |
| 1325 * Clean up the video subsystem | |
| 1326 */ | |
| 1327 void SDL_VideoQuit (void) | |
| 1328 { | |
| 1329 SDL_Surface *ready_to_go; | |
| 1330 | |
| 1331 if ( current_video ) { | |
| 1332 SDL_VideoDevice *video = current_video; | |
| 1333 SDL_VideoDevice *this = current_video; | |
| 1334 | |
| 1335 /* Halt event processing before doing anything else */ | |
| 1336 SDL_StopEventLoop(); | |
| 1337 | |
| 1338 /* Clean up allocated window manager items */ | |
| 1339 if ( SDL_PublicSurface ) { | |
| 1340 SDL_PublicSurface = NULL; | |
| 1341 } | |
| 1342 SDL_CursorQuit(); | |
| 1343 | |
| 1344 /* Just in case... */ | |
| 1345 SDL_WM_GrabInputOff(); | |
| 1346 | |
| 1347 /* Clean up the system video */ | |
| 1348 video->VideoQuit(this); | |
| 1349 | |
| 1350 /* Free any lingering surfaces */ | |
| 1351 ready_to_go = SDL_ShadowSurface; | |
| 1352 SDL_ShadowSurface = NULL; | |
| 1353 SDL_FreeSurface(ready_to_go); | |
| 1354 if ( SDL_VideoSurface != NULL ) { | |
| 1355 ready_to_go = SDL_VideoSurface; | |
| 1356 SDL_VideoSurface = NULL; | |
| 1357 SDL_FreeSurface(ready_to_go); | |
| 1358 } | |
| 1359 SDL_PublicSurface = NULL; | |
| 1360 | |
| 1361 /* Clean up miscellaneous memory */ | |
| 1362 if ( video->physpal ) { | |
|
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|
1363 SDL_free(video->physpal->colors); |
|
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|
1364 SDL_free(video->physpal); |
| 0 | 1365 video->physpal = NULL; |
| 1366 } | |
| 1367 if ( video->gammacols ) { | |
|
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|
1368 SDL_free(video->gammacols); |
| 0 | 1369 video->gammacols = NULL; |
| 1370 } | |
| 1371 if ( video->gamma ) { | |
|
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|
1372 SDL_free(video->gamma); |
| 0 | 1373 video->gamma = NULL; |
| 1374 } | |
|
58
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* Removed fullscreen menu option from the "Window" menu
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|
1375 if ( video->wm_title != NULL ) { |
|
1336
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|
1376 SDL_free(video->wm_title); |
|
58
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* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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|
1377 video->wm_title = NULL; |
| 0 | 1378 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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|
1379 if ( video->wm_icon != NULL ) { |
|
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|
1380 SDL_free(video->wm_icon); |
|
58
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* Removed fullscreen menu option from the "Window" menu
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|
1381 video->wm_icon = NULL; |
| 0 | 1382 } |
| 1383 | |
| 1384 /* Finish cleaning up video subsystem */ | |
| 1385 video->free(this); | |
| 1386 current_video = NULL; | |
| 1387 } | |
| 1388 return; | |
| 1389 } | |
| 1390 | |
| 1391 /* Load the GL driver library */ | |
| 1392 int SDL_GL_LoadLibrary(const char *path) | |
| 1393 { | |
| 1394 SDL_VideoDevice *video = current_video; | |
| 1395 SDL_VideoDevice *this = current_video; | |
| 1396 int retval; | |
| 1397 | |
| 1398 retval = -1; | |
|
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More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1399 if ( video == NULL ) { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1400 SDL_SetError("Video subsystem has not been initialized"); |
| 0 | 1401 } else { |
|
423
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More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1402 if ( video->GL_LoadLibrary ) { |
|
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|
1403 retval = video->GL_LoadLibrary(this, path); |
|
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|
1404 } else { |
|
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|
1405 SDL_SetError("No dynamic GL support in video driver"); |
|
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|
1406 } |
| 0 | 1407 } |
| 1408 return(retval); | |
| 1409 } | |
| 1410 | |
| 1411 void *SDL_GL_GetProcAddress(const char* proc) | |
| 1412 { | |
| 1413 SDL_VideoDevice *video = current_video; | |
| 1414 SDL_VideoDevice *this = current_video; | |
| 1415 void *func; | |
| 1416 | |
| 1417 func = NULL; | |
| 1418 if ( video->GL_GetProcAddress ) { | |
| 1419 if ( video->gl_config.driver_loaded ) { | |
| 1420 func = video->GL_GetProcAddress(this, proc); | |
| 1421 } else { | |
| 1422 SDL_SetError("No GL driver has been loaded"); | |
| 1423 } | |
| 1424 } else { | |
| 1425 SDL_SetError("No dynamic GL support in video driver"); | |
| 1426 } | |
| 1427 return func; | |
| 1428 } | |
| 1429 | |
| 1430 /* Set the specified GL attribute for setting up a GL video mode */ | |
| 1431 int SDL_GL_SetAttribute( SDL_GLattr attr, int value ) | |
| 1432 { | |
| 1433 int retval; | |
| 1434 SDL_VideoDevice *video = current_video; | |
| 1435 | |
| 1436 retval = 0; | |
| 1437 switch (attr) { | |
| 1438 case SDL_GL_RED_SIZE: | |
| 1439 video->gl_config.red_size = value; | |
| 1440 break; | |
| 1441 case SDL_GL_GREEN_SIZE: | |
| 1442 video->gl_config.green_size = value; | |
| 1443 break; | |
| 1444 case SDL_GL_BLUE_SIZE: | |
| 1445 video->gl_config.blue_size = value; | |
| 1446 break; | |
| 1447 case SDL_GL_ALPHA_SIZE: | |
| 1448 video->gl_config.alpha_size = value; | |
| 1449 break; | |
| 1450 case SDL_GL_DOUBLEBUFFER: | |
| 1451 video->gl_config.double_buffer = value; | |
| 1452 break; | |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1453 case SDL_GL_BUFFER_SIZE: |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1454 video->gl_config.buffer_size = value; |
| 0 | 1455 break; |
| 1456 case SDL_GL_DEPTH_SIZE: | |
| 1457 video->gl_config.depth_size = value; | |
| 1458 break; | |
| 1459 case SDL_GL_STENCIL_SIZE: | |
| 1460 video->gl_config.stencil_size = value; | |
| 1461 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1462 case SDL_GL_ACCUM_RED_SIZE: |
| 0 | 1463 video->gl_config.accum_red_size = value; |
| 1464 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1465 case SDL_GL_ACCUM_GREEN_SIZE: |
| 0 | 1466 video->gl_config.accum_green_size = value; |
| 1467 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1468 case SDL_GL_ACCUM_BLUE_SIZE: |
| 0 | 1469 video->gl_config.accum_blue_size = value; |
| 1470 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1471 case SDL_GL_ACCUM_ALPHA_SIZE: |
| 0 | 1472 video->gl_config.accum_alpha_size = value; |
| 1473 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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diff
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|
1474 case SDL_GL_STEREO: |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1475 video->gl_config.stereo = value; |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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|
1476 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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changeset
|
1477 case SDL_GL_MULTISAMPLEBUFFERS: |
|
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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|
1478 video->gl_config.multisamplebuffers = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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changeset
|
1479 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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changeset
|
1480 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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changeset
|
1481 video->gl_config.multisamplesamples = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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diff
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|
1482 break; |
| 1737 | 1483 case SDL_GL_ACCELERATED_VISUAL: |
| 1484 video->gl_config.accelerated = value; | |
| 1485 break; | |
|
1736
3b2a92126f4d
Implemented bug #2, 117:
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diff
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|
1486 case SDL_GL_SWAP_CONTROL: |
|
3b2a92126f4d
Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents:
1545
diff
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|
1487 video->gl_config.swap_control = value; |
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1488 break; |
| 0 | 1489 default: |
| 1490 SDL_SetError("Unknown OpenGL attribute"); | |
| 1491 retval = -1; | |
| 1492 break; | |
| 1493 } | |
| 1494 return(retval); | |
| 1495 } | |
| 1496 | |
| 1497 /* Retrieve an attribute value from the windowing system. */ | |
| 1498 int SDL_GL_GetAttribute(SDL_GLattr attr, int* value) | |
| 1499 { | |
| 1500 int retval = -1; | |
| 1501 SDL_VideoDevice* video = current_video; | |
| 1502 SDL_VideoDevice* this = current_video; | |
| 1503 | |
| 1504 if ( video->GL_GetAttribute ) { | |
| 1505 retval = this->GL_GetAttribute(this, attr, value); | |
|
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1506 } else { |
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1507 *value = 0; |
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1508 SDL_SetError("GL_GetAttribute not supported"); |
| 0 | 1509 } |
| 1510 return retval; | |
| 1511 } | |
| 1512 | |
| 1513 /* Perform a GL buffer swap on the current GL context */ | |
| 1514 void SDL_GL_SwapBuffers(void) | |
| 1515 { | |
| 1516 SDL_VideoDevice *video = current_video; | |
| 1517 SDL_VideoDevice *this = current_video; | |
| 1518 | |
| 1519 if ( video->screen->flags & SDL_OPENGL ) { | |
|
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1520 video->GL_SwapBuffers(this); |
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1521 } else { |
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1522 SDL_SetError("OpenGL video mode has not been set"); |
| 0 | 1523 } |
| 1524 } | |
| 1525 | |
| 1526 /* Update rects with locking */ | |
| 1527 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect *rects) | |
| 1528 { | |
| 1529 SDL_GL_Lock(); | |
| 1530 SDL_GL_UpdateRects(numrects, rects); | |
| 1531 SDL_GL_Unlock(); | |
| 1532 } | |
| 1533 | |
| 1534 /* Update rects without state setting and changing (the caller is responsible for it) */ | |
| 1535 void SDL_GL_UpdateRects(int numrects, SDL_Rect *rects) | |
| 1536 { | |
|
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1537 #if SDL_VIDEO_OPENGL |
| 0 | 1538 SDL_VideoDevice *this = current_video; |
| 1539 SDL_Rect update, tmp; | |
| 1540 int x, y, i; | |
| 1541 | |
| 1542 for ( i = 0; i < numrects; i++ ) | |
| 1543 { | |
| 1544 tmp.y = rects[i].y; | |
| 1545 tmp.h = rects[i].h; | |
| 1546 for ( y = 0; y <= rects[i].h / 256; y++ ) | |
| 1547 { | |
| 1548 tmp.x = rects[i].x; | |
| 1549 tmp.w = rects[i].w; | |
| 1550 for ( x = 0; x <= rects[i].w / 256; x++ ) | |
| 1551 { | |
| 1552 update.x = tmp.x; | |
| 1553 update.y = tmp.y; | |
| 1554 update.w = tmp.w; | |
| 1555 update.h = tmp.h; | |
| 1556 | |
| 1557 if ( update.w > 256 ) | |
| 1558 update.w = 256; | |
| 1559 | |
| 1560 if ( update.h > 256 ) | |
| 1561 update.h = 256; | |
| 1562 | |
| 1563 this->glFlush(); | |
| 1564 this->glTexSubImage2D( | |
| 1565 GL_TEXTURE_2D, | |
| 1566 0, | |
| 1567 0, | |
| 1568 0, | |
| 1569 update.w, | |
| 1570 update.h, | |
| 1571 this->is_32bit? GL_RGBA : GL_RGB, | |
| 1572 #ifdef GL_VERSION_1_2 | |
| 1573 this->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 1574 #else | |
| 1575 GL_UNSIGNED_BYTE, | |
| 1576 #endif | |
| 1577 (Uint8 *)this->screen->pixels + | |
| 1578 this->screen->format->BytesPerPixel * update.x + | |
| 1579 update.y * this->screen->pitch ); | |
| 1580 | |
| 1581 this->glFlush(); | |
| 1582 /* | |
| 1583 * Note the parens around the function name: | |
| 1584 * This is because some OpenGL implementations define glTexCoord etc | |
| 1585 * as macros, and we don't want them expanded here. | |
| 1586 */ | |
| 1587 this->glBegin(GL_TRIANGLE_STRIP); | |
| 1588 (this->glTexCoord2f)( 0.0, 0.0 ); | |
| 1589 (this->glVertex2i)( update.x, update.y ); | |
| 1590 (this->glTexCoord2f)( (float)(update.w / 256.0), 0.0 ); | |
| 1591 (this->glVertex2i)( update.x + update.w, update.y ); | |
| 1592 (this->glTexCoord2f)( 0.0, (float)(update.h / 256.0) ); | |
| 1593 (this->glVertex2i)( update.x, update.y + update.h ); | |
| 1594 (this->glTexCoord2f)( (float)(update.w / 256.0), (float)(update.h / 256.0) ); | |
| 1595 (this->glVertex2i)( update.x + update.w , update.y + update.h ); | |
| 1596 this->glEnd(); | |
| 1597 | |
| 1598 tmp.x += 256; | |
| 1599 tmp.w -= 256; | |
| 1600 } | |
| 1601 tmp.y += 256; | |
| 1602 tmp.h -= 256; | |
| 1603 } | |
| 1604 } | |
| 1605 #endif | |
| 1606 } | |
| 1607 | |
| 1608 /* Lock == save current state */ | |
| 1609 void SDL_GL_Lock() | |
| 1610 { | |
|
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1611 #if SDL_VIDEO_OPENGL |
| 0 | 1612 lock_count--; |
| 1613 if (lock_count==-1) | |
| 1614 { | |
| 1615 SDL_VideoDevice *this = current_video; | |
| 1616 | |
| 1617 this->glPushAttrib( GL_ALL_ATTRIB_BITS ); /* TODO: narrow range of what is saved */ | |
|
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1618 #ifdef GL_CLIENT_PIXEL_STORE_BIT |
| 0 | 1619 this->glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT ); |
|
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1620 #endif |
| 0 | 1621 |
| 1622 this->glEnable(GL_TEXTURE_2D); | |
| 1623 this->glEnable(GL_BLEND); | |
| 1624 this->glDisable(GL_FOG); | |
| 1625 this->glDisable(GL_ALPHA_TEST); | |
| 1626 this->glDisable(GL_DEPTH_TEST); | |
| 1627 this->glDisable(GL_SCISSOR_TEST); | |
| 1628 this->glDisable(GL_STENCIL_TEST); | |
| 1629 this->glDisable(GL_CULL_FACE); | |
| 1630 | |
| 1631 this->glBindTexture( GL_TEXTURE_2D, this->texture ); | |
| 1632 this->glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); | |
| 1633 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); | |
| 1634 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); | |
| 1635 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); | |
| 1636 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT ); | |
| 1637 | |
| 1638 this->glPixelStorei( GL_UNPACK_ROW_LENGTH, this->screen->pitch / this->screen->format->BytesPerPixel ); | |
| 1639 this->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
| 1640 (this->glColor4f)(1.0, 1.0, 1.0, 1.0); /* Solaris workaround */ | |
| 1641 | |
| 1642 this->glViewport(0, 0, this->screen->w, this->screen->h); | |
| 1643 this->glMatrixMode(GL_PROJECTION); | |
| 1644 this->glPushMatrix(); | |
| 1645 this->glLoadIdentity(); | |
| 1646 | |
| 1647 this->glOrtho(0.0, (GLdouble) this->screen->w, (GLdouble) this->screen->h, 0.0, 0.0, 1.0); | |
| 1648 | |
| 1649 this->glMatrixMode(GL_MODELVIEW); | |
| 1650 this->glPushMatrix(); | |
| 1651 this->glLoadIdentity(); | |
| 1652 } | |
| 1653 #endif | |
| 1654 } | |
| 1655 | |
| 1656 /* Unlock == restore saved state */ | |
| 1657 void SDL_GL_Unlock() | |
| 1658 { | |
|
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1659 #if SDL_VIDEO_OPENGL |
| 0 | 1660 lock_count++; |
| 1661 if (lock_count==0) | |
| 1662 { | |
| 1663 SDL_VideoDevice *this = current_video; | |
| 1664 | |
| 1665 this->glPopMatrix(); | |
| 1666 this->glMatrixMode(GL_PROJECTION); | |
| 1667 this->glPopMatrix(); | |
| 1668 | |
| 1669 this->glPopClientAttrib(); | |
| 1670 this->glPopAttrib(); | |
| 1671 } | |
| 1672 #endif | |
| 1673 } | |
| 1674 | |
| 1675 /* | |
| 1676 * Sets/Gets the title and icon text of the display window, if any. | |
| 1677 */ | |
| 1678 void SDL_WM_SetCaption (const char *title, const char *icon) | |
| 1679 { | |
| 1680 SDL_VideoDevice *video = current_video; | |
| 1681 SDL_VideoDevice *this = current_video; | |
| 1682 | |
|
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1683 if ( video ) { |
|
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1684 if ( title ) { |
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1685 if ( video->wm_title ) { |
|
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1686 SDL_free(video->wm_title); |
|
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1687 } |
|
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1688 video->wm_title = SDL_strdup(title); |
| 0 | 1689 } |
|
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1690 if ( icon ) { |
|
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1691 if ( video->wm_icon ) { |
|
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1692 SDL_free(video->wm_icon); |
|
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1693 } |
|
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1694 video->wm_icon = SDL_strdup(icon); |
| 0 | 1695 } |
|
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1696 if ( (title || icon) && (video->SetCaption != NULL) ) { |
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|
1697 video->SetCaption(this, video->wm_title,video->wm_icon); |
| 0 | 1698 } |
| 1699 } | |
| 1700 } | |
| 1701 void SDL_WM_GetCaption (char **title, char **icon) | |
| 1702 { | |
|
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1703 SDL_VideoDevice *video = current_video; |
|
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1704 |
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1705 if ( video ) { |
|
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1706 if ( title ) { |
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1707 *title = video->wm_title; |
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1708 } |
|
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1709 if ( icon ) { |
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|
1710 *icon = video->wm_icon; |
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1711 } |
| 0 | 1712 } |
| 1713 } | |
| 1714 | |
|
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|
1715 /* Utility function used by SDL_WM_SetIcon(); |
|
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1716 * flags & 1 for color key, flags & 2 for alpha channel. */ |
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1717 static void CreateMaskFromColorKeyOrAlpha(SDL_Surface *icon, Uint8 *mask, int flags) |
| 0 | 1718 { |
| 1719 int x, y; | |
| 1720 Uint32 colorkey; | |
| 1721 #define SET_MASKBIT(icon, x, y, mask) \ | |
| 1722 mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8))) | |
| 1723 | |
| 1724 colorkey = icon->format->colorkey; | |
| 1725 switch (icon->format->BytesPerPixel) { | |
| 1726 case 1: { Uint8 *pixels; | |
| 1727 for ( y=0; y<icon->h; ++y ) { | |
| 1728 pixels = (Uint8 *)icon->pixels + y*icon->pitch; | |
| 1729 for ( x=0; x<icon->w; ++x ) { | |
| 1730 if ( *pixels++ == colorkey ) { | |
| 1731 SET_MASKBIT(icon, x, y, mask); | |
| 1732 } | |
| 1733 } | |
| 1734 } | |
| 1735 } | |
| 1736 break; | |
| 1737 | |
| 1738 case 2: { Uint16 *pixels; | |
| 1739 for ( y=0; y<icon->h; ++y ) { | |
| 1740 pixels = (Uint16 *)icon->pixels + | |
| 1741 y*icon->pitch/2; | |
| 1742 for ( x=0; x<icon->w; ++x ) { | |
|
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1743 if ( (flags & 1) && *pixels == colorkey ) { |
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1744 SET_MASKBIT(icon, x, y, mask); |
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1745 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1746 SET_MASKBIT(icon, x, y, mask); |
| 1747 } | |
|
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1748 pixels++; |
| 0 | 1749 } |
| 1750 } | |
| 1751 } | |
| 1752 break; | |
| 1753 | |
| 1754 case 4: { Uint32 *pixels; | |
| 1755 for ( y=0; y<icon->h; ++y ) { | |
| 1756 pixels = (Uint32 *)icon->pixels + | |
| 1757 y*icon->pitch/4; | |
| 1758 for ( x=0; x<icon->w; ++x ) { | |
|
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1759 if ( (flags & 1) && *pixels == colorkey ) { |
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1760 SET_MASKBIT(icon, x, y, mask); |
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1761 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1762 SET_MASKBIT(icon, x, y, mask); |
| 1763 } | |
|
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1764 pixels++; |
| 0 | 1765 } |
| 1766 } | |
| 1767 } | |
| 1768 break; | |
| 1769 } | |
| 1770 } | |
| 1771 | |
| 1772 /* | |
| 1773 * Sets the window manager icon for the display window. | |
| 1774 */ | |
| 1775 void SDL_WM_SetIcon (SDL_Surface *icon, Uint8 *mask) | |
| 1776 { | |
| 1777 SDL_VideoDevice *video = current_video; | |
| 1778 SDL_VideoDevice *this = current_video; | |
| 1779 | |
| 1780 if ( icon && video->SetIcon ) { | |
| 1781 /* Generate a mask if necessary, and create the icon! */ | |
| 1782 if ( mask == NULL ) { | |
| 1783 int mask_len = icon->h*(icon->w+7)/8; | |
|
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1784 int flags = 0; |
|
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1785 mask = (Uint8 *)SDL_malloc(mask_len); |
| 0 | 1786 if ( mask == NULL ) { |
| 1787 return; | |
| 1788 } | |
|
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1789 SDL_memset(mask, ~0, mask_len); |
|
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1790 if ( icon->flags & SDL_SRCCOLORKEY ) flags |= 1; |
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|
1791 if ( icon->flags & SDL_SRCALPHA ) flags |= 2; |
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1792 if( flags ) { |
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1793 CreateMaskFromColorKeyOrAlpha(icon, mask, flags); |
| 0 | 1794 } |
| 1795 video->SetIcon(video, icon, mask); | |
|
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1796 SDL_free(mask); |
| 0 | 1797 } else { |
| 1798 video->SetIcon(this, icon, mask); | |
| 1799 } | |
| 1800 } | |
| 1801 } | |
| 1802 | |
| 1803 /* | |
| 1804 * Grab or ungrab the keyboard and mouse input. | |
| 1805 * This function returns the final grab mode after calling the | |
| 1806 * driver dependent function. | |
| 1807 */ | |
| 1808 static SDL_GrabMode SDL_WM_GrabInputRaw(SDL_GrabMode mode) | |
| 1809 { | |
| 1810 SDL_VideoDevice *video = current_video; | |
| 1811 SDL_VideoDevice *this = current_video; | |
| 1812 | |
| 1813 /* Only do something if we have support for grabs */ | |
| 1814 if ( video->GrabInput == NULL ) { | |
| 1815 return(video->input_grab); | |
| 1816 } | |
| 1817 | |
| 1818 /* If the final grab mode if off, only then do we actually grab */ | |
| 1819 #ifdef DEBUG_GRAB | |
| 1820 printf("SDL_WM_GrabInputRaw(%d) ... ", mode); | |
| 1821 #endif | |
| 1822 if ( mode == SDL_GRAB_OFF ) { | |
| 1823 if ( video->input_grab != SDL_GRAB_OFF ) { | |
| 1824 mode = video->GrabInput(this, mode); | |
| 1825 } | |
| 1826 } else { | |
| 1827 if ( video->input_grab == SDL_GRAB_OFF ) { | |
| 1828 mode = video->GrabInput(this, mode); | |
| 1829 } | |
| 1830 } | |
| 1831 if ( mode != video->input_grab ) { | |
| 1832 video->input_grab = mode; | |
| 1833 if ( video->CheckMouseMode ) { | |
| 1834 video->CheckMouseMode(this); | |
| 1835 } | |
| 1836 } | |
| 1837 #ifdef DEBUG_GRAB | |
| 1838 printf("Final mode %d\n", video->input_grab); | |
| 1839 #endif | |
| 1840 | |
| 1841 /* Return the final grab state */ | |
| 1842 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1843 mode -= SDL_GRAB_FULLSCREEN; | |
| 1844 } | |
| 1845 return(mode); | |
| 1846 } | |
| 1847 SDL_GrabMode SDL_WM_GrabInput(SDL_GrabMode mode) | |
| 1848 { | |
| 1849 SDL_VideoDevice *video = current_video; | |
| 1850 | |
|
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1851 /* If the video isn't initialized yet, we can't do anything */ |
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1852 if ( ! video ) { |
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1853 return SDL_GRAB_OFF; |
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1854 } |
| 0 | 1855 |
| 1856 /* Return the current mode on query */ | |
| 1857 if ( mode == SDL_GRAB_QUERY ) { | |
| 1858 mode = video->input_grab; | |
| 1859 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1860 mode -= SDL_GRAB_FULLSCREEN; | |
| 1861 } | |
| 1862 return(mode); | |
| 1863 } | |
| 1864 | |
| 1865 #ifdef DEBUG_GRAB | |
| 1866 printf("SDL_WM_GrabInput(%d) ... ", mode); | |
| 1867 #endif | |
| 1868 /* If the video surface is fullscreen, we always grab */ | |
| 1869 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1870 mode -= SDL_GRAB_FULLSCREEN; | |
| 1871 } | |
| 1872 if ( SDL_VideoSurface && (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { | |
| 1873 mode += SDL_GRAB_FULLSCREEN; | |
| 1874 } | |
| 1875 return(SDL_WM_GrabInputRaw(mode)); | |
| 1876 } | |
| 1877 static SDL_GrabMode SDL_WM_GrabInputOff(void) | |
| 1878 { | |
| 1879 SDL_GrabMode mode; | |
| 1880 | |
| 1881 /* First query the current grab state */ | |
| 1882 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 1883 | |
| 1884 /* Now explicitly turn off input grab */ | |
| 1885 SDL_WM_GrabInputRaw(SDL_GRAB_OFF); | |
| 1886 | |
| 1887 /* Return the old state */ | |
| 1888 return(mode); | |
| 1889 } | |
| 1890 | |
| 1891 /* | |
| 1892 * Iconify the window in window managed environments. | |
| 1893 * A successful iconification will result in an SDL_APPACTIVE loss event. | |
| 1894 */ | |
| 1895 int SDL_WM_IconifyWindow(void) | |
| 1896 { | |
| 1897 SDL_VideoDevice *video = current_video; | |
| 1898 SDL_VideoDevice *this = current_video; | |
| 1899 int retval; | |
| 1900 | |
| 1901 retval = 0; | |
| 1902 if ( video->IconifyWindow ) { | |
| 1903 retval = video->IconifyWindow(this); | |
| 1904 } | |
| 1905 return(retval); | |
| 1906 } | |
| 1907 | |
| 1908 /* | |
| 1909 * Toggle fullscreen mode | |
| 1910 */ | |
| 1911 int SDL_WM_ToggleFullScreen(SDL_Surface *surface) | |
| 1912 { | |
| 1913 SDL_VideoDevice *video = current_video; | |
| 1914 SDL_VideoDevice *this = current_video; | |
| 1915 int toggled; | |
| 1916 | |
| 1917 toggled = 0; | |
| 1918 if ( SDL_PublicSurface && (surface == SDL_PublicSurface) && | |
| 1919 video->ToggleFullScreen ) { | |
| 1920 if ( surface->flags & SDL_FULLSCREEN ) { | |
| 1921 toggled = video->ToggleFullScreen(this, 0); | |
| 1922 if ( toggled ) { | |
| 1923 SDL_VideoSurface->flags &= ~SDL_FULLSCREEN; | |
| 1924 SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; | |
| 1925 } | |
| 1926 } else { | |
| 1927 toggled = video->ToggleFullScreen(this, 1); | |
| 1928 if ( toggled ) { | |
| 1929 SDL_VideoSurface->flags |= SDL_FULLSCREEN; | |
| 1930 SDL_PublicSurface->flags |= SDL_FULLSCREEN; | |
| 1931 } | |
| 1932 } | |
| 1933 /* Double-check the grab state inside SDL_WM_GrabInput() */ | |
| 1934 if ( toggled ) { | |
| 1935 SDL_WM_GrabInput(video->input_grab); | |
| 1936 } | |
| 1937 } | |
| 1938 return(toggled); | |
| 1939 } | |
| 1940 | |
| 1941 /* | |
| 1942 * Get some platform dependent window manager information | |
| 1943 */ | |
| 1944 int SDL_GetWMInfo (SDL_SysWMinfo *info) | |
| 1945 { | |
| 1946 SDL_VideoDevice *video = current_video; | |
| 1947 SDL_VideoDevice *this = current_video; | |
| 1948 | |
| 1949 if ( video && video->GetWMInfo ) { | |
| 1950 return(video->GetWMInfo(this, info)); | |
| 1951 } else { | |
| 1952 return(0); | |
| 1953 } | |
| 1954 } |