Mercurial > sdl-ios-xcode
annotate src/video/SDL_video.c @ 4066:58a5055da431 SDL-1.2
More improvements for bug #373
Show the SDL cursor in the window and the arrow cursor outside the window.
This is also supposed to show the SDL cursor when activated, but that code
isn't working yet...
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 14 Jul 2007 08:27:06 +0000 |
| parents | 604321d3575e |
| children | fc69b552ee32 |
| 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_PHOTON |
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94 &ph_bootstrap, |
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95 #endif |
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96 #if SDL_VIDEO_DRIVER_EPOC |
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97 &EPOC_bootstrap, |
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98 #endif |
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99 #if SDL_VIDEO_DRIVER_XBIOS |
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100 &XBIOS_bootstrap, |
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101 #endif |
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102 #if SDL_VIDEO_DRIVER_GEM |
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103 &GEM_bootstrap, |
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104 #endif |
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105 #if SDL_VIDEO_DRIVER_PICOGUI |
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106 &PG_bootstrap, |
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107 #endif |
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108 #if SDL_VIDEO_DRIVER_DC |
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109 &DC_bootstrap, |
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110 #endif |
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111 #if SDL_VIDEO_DRIVER_NDS |
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112 &NDS_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 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect* rects); | |
| 135 | |
| 136 static SDL_GrabMode SDL_WM_GrabInputOff(void); | |
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137 #if SDL_VIDEO_OPENGL |
| 0 | 138 static int lock_count = 0; |
| 139 #endif | |
| 140 | |
| 141 | |
| 142 /* | |
| 143 * Initialize the video and event subsystems -- determine native pixel format | |
| 144 */ | |
| 145 int SDL_VideoInit (const char *driver_name, Uint32 flags) | |
| 146 { | |
| 147 SDL_VideoDevice *video; | |
| 148 int index; | |
| 149 int i; | |
| 150 SDL_PixelFormat vformat; | |
| 151 Uint32 video_flags; | |
| 152 | |
| 153 /* Toggle the event thread flags, based on OS requirements */ | |
| 154 #if defined(MUST_THREAD_EVENTS) | |
| 155 flags |= SDL_INIT_EVENTTHREAD; | |
| 156 #elif defined(CANT_THREAD_EVENTS) | |
| 157 if ( (flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD ) { | |
| 158 SDL_SetError("OS doesn't support threaded events"); | |
| 159 return(-1); | |
| 160 } | |
| 161 #endif | |
| 162 | |
| 163 /* Check to make sure we don't overwrite 'current_video' */ | |
| 164 if ( current_video != NULL ) { | |
| 165 SDL_VideoQuit(); | |
| 166 } | |
| 167 | |
| 168 /* Select the proper video driver */ | |
| 169 index = 0; | |
| 170 video = NULL; | |
| 171 if ( driver_name != NULL ) { | |
| 172 #if 0 /* This will be replaced with a better driver selection API */ | |
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173 if ( SDL_strrchr(driver_name, ':') != NULL ) { |
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174 index = atoi(SDL_strrchr(driver_name, ':')+1); |
| 0 | 175 } |
| 176 #endif | |
| 177 for ( i=0; bootstrap[i]; ++i ) { | |
| 3882 | 178 if ( SDL_strcasecmp(bootstrap[i]->name, driver_name) == 0) { |
| 0 | 179 if ( bootstrap[i]->available() ) { |
| 180 video = bootstrap[i]->create(index); | |
| 181 break; | |
| 182 } | |
| 183 } | |
| 184 } | |
| 185 } else { | |
| 186 for ( i=0; bootstrap[i]; ++i ) { | |
| 187 if ( bootstrap[i]->available() ) { | |
| 188 video = bootstrap[i]->create(index); | |
| 189 if ( video != NULL ) { | |
| 190 break; | |
| 191 } | |
| 192 } | |
| 193 } | |
| 194 } | |
| 195 if ( video == NULL ) { | |
| 196 SDL_SetError("No available video device"); | |
| 197 return(-1); | |
| 198 } | |
| 199 current_video = video; | |
| 200 current_video->name = bootstrap[i]->name; | |
| 201 | |
| 202 /* Do some basic variable initialization */ | |
| 203 video->screen = NULL; | |
| 204 video->shadow = NULL; | |
| 205 video->visible = NULL; | |
| 206 video->physpal = NULL; | |
| 207 video->gammacols = NULL; | |
| 208 video->gamma = NULL; | |
| 209 video->wm_title = NULL; | |
| 210 video->wm_icon = NULL; | |
| 211 video->offset_x = 0; | |
| 212 video->offset_y = 0; | |
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213 SDL_memset(&video->info, 0, (sizeof video->info)); |
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214 |
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215 video->displayformatalphapixel = NULL; |
| 0 | 216 |
| 217 /* Set some very sane GL defaults */ | |
| 218 video->gl_config.driver_loaded = 0; | |
| 219 video->gl_config.dll_handle = NULL; | |
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220 video->gl_config.red_size = 3; |
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221 video->gl_config.green_size = 3; |
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222 video->gl_config.blue_size = 2; |
| 0 | 223 video->gl_config.alpha_size = 0; |
| 224 video->gl_config.buffer_size = 0; | |
| 225 video->gl_config.depth_size = 16; | |
| 226 video->gl_config.stencil_size = 0; | |
| 227 video->gl_config.double_buffer = 1; | |
| 228 video->gl_config.accum_red_size = 0; | |
| 229 video->gl_config.accum_green_size = 0; | |
| 230 video->gl_config.accum_blue_size = 0; | |
| 231 video->gl_config.accum_alpha_size = 0; | |
|
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232 video->gl_config.stereo = 0; |
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233 video->gl_config.multisamplebuffers = 0; |
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234 video->gl_config.multisamplesamples = 0; |
| 1737 | 235 video->gl_config.accelerated = -1; /* not known, don't set */ |
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236 video->gl_config.swap_control = -1; /* not known, don't set */ |
| 0 | 237 |
| 238 /* Initialize the video subsystem */ | |
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239 SDL_memset(&vformat, 0, sizeof(vformat)); |
| 0 | 240 if ( video->VideoInit(video, &vformat) < 0 ) { |
| 241 SDL_VideoQuit(); | |
| 242 return(-1); | |
| 243 } | |
| 244 | |
| 245 /* Create a zero sized video surface of the appropriate format */ | |
| 246 video_flags = SDL_SWSURFACE; | |
| 247 SDL_VideoSurface = SDL_CreateRGBSurface(video_flags, 0, 0, | |
| 248 vformat.BitsPerPixel, | |
| 249 vformat.Rmask, vformat.Gmask, vformat.Bmask, 0); | |
| 250 if ( SDL_VideoSurface == NULL ) { | |
| 251 SDL_VideoQuit(); | |
| 252 return(-1); | |
| 253 } | |
| 254 SDL_PublicSurface = NULL; /* Until SDL_SetVideoMode() */ | |
| 255 | |
| 256 #if 0 /* Don't change the current palette - may be used by other programs. | |
| 257 * The application can't do anything with the display surface until | |
| 258 * a video mode has been set anyway. :) | |
| 259 */ | |
| 260 /* If we have a palettized surface, create a default palette */ | |
| 261 if ( SDL_VideoSurface->format->palette ) { | |
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262 SDL_PixelFormat *vf = SDL_VideoSurface->format; |
| 0 | 263 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 264 video->SetColors(video, | |
| 265 0, vf->palette->ncolors, vf->palette->colors); | |
| 266 } | |
| 267 #endif | |
| 268 video->info.vfmt = SDL_VideoSurface->format; | |
| 269 | |
| 270 /* Start the event loop */ | |
| 271 if ( SDL_StartEventLoop(flags) < 0 ) { | |
| 272 SDL_VideoQuit(); | |
| 273 return(-1); | |
| 274 } | |
| 275 SDL_CursorInit(flags & SDL_INIT_EVENTTHREAD); | |
| 276 | |
| 277 /* We're ready to go! */ | |
| 278 return(0); | |
| 279 } | |
| 280 | |
| 281 char *SDL_VideoDriverName(char *namebuf, int maxlen) | |
| 282 { | |
| 283 if ( current_video != NULL ) { | |
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284 SDL_strlcpy(namebuf, current_video->name, maxlen); |
| 0 | 285 return(namebuf); |
| 286 } | |
| 287 return(NULL); | |
| 288 } | |
| 289 | |
| 290 /* | |
| 291 * Get the current display surface | |
| 292 */ | |
| 293 SDL_Surface *SDL_GetVideoSurface(void) | |
| 294 { | |
| 295 SDL_Surface *visible; | |
| 296 | |
| 297 visible = NULL; | |
| 298 if ( current_video ) { | |
| 299 visible = current_video->visible; | |
| 300 } | |
| 301 return(visible); | |
| 302 } | |
| 303 | |
| 304 /* | |
| 305 * Get the current information about the video hardware | |
| 306 */ | |
| 307 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
| 308 { | |
| 309 const SDL_VideoInfo *info; | |
| 310 | |
| 311 info = NULL; | |
| 312 if ( current_video ) { | |
| 313 info = ¤t_video->info; | |
| 314 } | |
| 315 return(info); | |
| 316 } | |
| 317 | |
| 318 /* | |
| 319 * Return a pointer to an array of available screen dimensions for the | |
| 320 * given format, sorted largest to smallest. Returns NULL if there are | |
| 321 * no dimensions available for a particular format, or (SDL_Rect **)-1 | |
| 322 * if any dimension is okay for the given format. If 'format' is NULL, | |
| 323 * the mode list will be for the format given by SDL_GetVideoInfo()->vfmt | |
| 324 */ | |
| 325 SDL_Rect ** SDL_ListModes (SDL_PixelFormat *format, Uint32 flags) | |
| 326 { | |
| 327 SDL_VideoDevice *video = current_video; | |
| 328 SDL_VideoDevice *this = current_video; | |
| 329 SDL_Rect **modes; | |
| 330 | |
| 331 modes = NULL; | |
| 332 if ( SDL_VideoSurface ) { | |
| 333 if ( format == NULL ) { | |
| 334 format = SDL_VideoSurface->format; | |
| 335 } | |
| 336 modes = video->ListModes(this, format, flags); | |
| 337 } | |
| 338 return(modes); | |
| 339 } | |
| 340 | |
| 341 /* | |
| 342 * Check to see if a particular video mode is supported. | |
| 343 * It returns 0 if the requested mode is not supported under any bit depth, | |
| 344 * or returns the bits-per-pixel of the closest available mode with the | |
| 345 * given width and height. If this bits-per-pixel is different from the | |
| 346 * one used when setting the video mode, SDL_SetVideoMode() will succeed, | |
| 347 * but will emulate the requested bits-per-pixel with a shadow surface. | |
| 348 */ | |
| 349 static Uint8 SDL_closest_depths[4][8] = { | |
| 350 /* 8 bit closest depth ordering */ | |
| 351 { 0, 8, 16, 15, 32, 24, 0, 0 }, | |
| 352 /* 15,16 bit closest depth ordering */ | |
| 353 { 0, 16, 15, 32, 24, 8, 0, 0 }, | |
| 354 /* 24 bit closest depth ordering */ | |
| 355 { 0, 24, 32, 16, 15, 8, 0, 0 }, | |
| 356 /* 32 bit closest depth ordering */ | |
| 357 { 0, 32, 16, 15, 24, 8, 0, 0 } | |
| 358 }; | |
| 359 | |
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360 |
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361 #ifdef __MACOS__ /* MPW optimization bug? */ |
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362 #define NEGATIVE_ONE 0xFFFFFFFF |
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363 #else |
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364 #define NEGATIVE_ONE -1 |
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365 #endif |
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366 |
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367 int SDL_VideoModeOK (int width, int height, int bpp, Uint32 flags) |
| 0 | 368 { |
| 369 int table, b, i; | |
| 370 int supported; | |
| 371 SDL_PixelFormat format; | |
| 372 SDL_Rect **sizes; | |
| 373 | |
| 374 /* Currently 1 and 4 bpp are not supported */ | |
| 375 if ( bpp < 8 || bpp > 32 ) { | |
| 376 return(0); | |
| 377 } | |
|
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378 if ( (width <= 0) || (height <= 0) ) { |
| 0 | 379 return(0); |
| 380 } | |
| 381 | |
| 382 /* Search through the list valid of modes */ | |
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383 SDL_memset(&format, 0, sizeof(format)); |
| 0 | 384 supported = 0; |
| 385 table = ((bpp+7)/8)-1; | |
| 386 SDL_closest_depths[table][0] = bpp; | |
| 387 SDL_closest_depths[table][7] = 0; | |
| 388 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 389 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 390 sizes = SDL_ListModes(&format, flags); | |
| 391 if ( sizes == (SDL_Rect **)0 ) { | |
| 392 /* No sizes supported at this bit-depth */ | |
| 393 continue; | |
| 394 } else | |
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395 if (sizes == (SDL_Rect **)NEGATIVE_ONE) { |
| 0 | 396 /* Any size supported at this bit-depth */ |
| 397 supported = 1; | |
| 398 continue; | |
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399 } else if (current_video->handles_any_size) { |
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400 /* Driver can center a smaller surface to simulate fullscreen */ |
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401 for ( i=0; sizes[i]; ++i ) { |
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402 if ((sizes[i]->w >= width) && (sizes[i]->h >= height)) { |
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403 supported = 1; /* this mode can fit the centered window. */ |
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404 break; |
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405 } |
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406 } |
| 0 | 407 } else |
| 408 for ( i=0; sizes[i]; ++i ) { | |
| 409 if ((sizes[i]->w == width) && (sizes[i]->h == height)) { | |
| 410 supported = 1; | |
| 411 break; | |
| 412 } | |
| 413 } | |
| 414 } | |
| 415 if ( supported ) { | |
| 416 --b; | |
| 417 return(SDL_closest_depths[table][b]); | |
| 418 } else { | |
| 419 return(0); | |
| 420 } | |
| 421 } | |
| 422 | |
| 423 /* | |
| 424 * Get the closest non-emulated video mode to the one requested | |
| 425 */ | |
| 426 static int SDL_GetVideoMode (int *w, int *h, int *BitsPerPixel, Uint32 flags) | |
| 427 { | |
| 428 int table, b, i; | |
| 429 int supported; | |
| 430 int native_bpp; | |
| 431 SDL_PixelFormat format; | |
| 432 SDL_Rect **sizes; | |
| 433 | |
|
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434 /* Check parameters */ |
|
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435 if ( *BitsPerPixel < 8 || *BitsPerPixel > 32 ) { |
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436 SDL_SetError("Invalid bits per pixel (range is {8...32})"); |
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437 return(0); |
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438 } |
|
430
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439 if ((*w <= 0) || (*h <= 0)) { |
|
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440 SDL_SetError("Invalid width or height"); |
|
430
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441 return(0); |
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442 } |
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443 |
| 0 | 444 /* Try the original video mode, get the closest depth */ |
| 445 native_bpp = SDL_VideoModeOK(*w, *h, *BitsPerPixel, flags); | |
| 446 if ( native_bpp == *BitsPerPixel ) { | |
| 447 return(1); | |
| 448 } | |
| 449 if ( native_bpp > 0 ) { | |
| 450 *BitsPerPixel = native_bpp; | |
| 451 return(1); | |
| 452 } | |
| 453 | |
| 454 /* No exact size match at any depth, look for closest match */ | |
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455 SDL_memset(&format, 0, sizeof(format)); |
| 0 | 456 supported = 0; |
| 457 table = ((*BitsPerPixel+7)/8)-1; | |
| 458 SDL_closest_depths[table][0] = *BitsPerPixel; | |
| 459 SDL_closest_depths[table][7] = SDL_VideoSurface->format->BitsPerPixel; | |
| 460 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
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461 int best; |
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462 |
| 0 | 463 format.BitsPerPixel = SDL_closest_depths[table][b]; |
| 464 sizes = SDL_ListModes(&format, flags); | |
| 465 if ( sizes == (SDL_Rect **)0 ) { | |
| 466 /* No sizes supported at this bit-depth */ | |
| 467 continue; | |
| 468 } | |
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469 best=0; |
| 0 | 470 for ( i=0; sizes[i]; ++i ) { |
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471 /* Mode with both dimensions bigger or equal than asked ? */ |
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472 if ((sizes[i]->w >= *w) && (sizes[i]->h >= *h)) { |
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473 /* Mode with any dimension smaller or equal than current best ? */ |
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474 if ((sizes[i]->w <= sizes[best]->w) || (sizes[i]->h <= sizes[best]->h)) { |
|
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475 /* Now choose the mode that has less pixels */ |
|
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476 if ((sizes[i]->w * sizes[i]->h) <= (sizes[best]->w * sizes[best]->h)) { |
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477 best=i; |
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478 supported = 1; |
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479 } |
| 0 | 480 } |
| 481 } | |
| 482 } | |
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483 if (supported) { |
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484 *w=sizes[best]->w; |
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485 *h=sizes[best]->h; |
| 0 | 486 *BitsPerPixel = SDL_closest_depths[table][b]; |
| 487 } | |
| 488 } | |
| 489 if ( ! supported ) { | |
| 490 SDL_SetError("No video mode large enough for %dx%d", *w, *h); | |
| 491 } | |
| 492 return(supported); | |
| 493 } | |
| 494 | |
| 495 /* This should probably go somewhere else -- like SDL_surface.c */ | |
| 496 static void SDL_ClearSurface(SDL_Surface *surface) | |
| 497 { | |
| 498 Uint32 black; | |
| 499 | |
| 500 black = SDL_MapRGB(surface->format, 0, 0, 0); | |
| 501 SDL_FillRect(surface, NULL, black); | |
| 502 if ((surface->flags&SDL_HWSURFACE) && (surface->flags&SDL_DOUBLEBUF)) { | |
| 503 SDL_Flip(surface); | |
| 504 SDL_FillRect(surface, NULL, black); | |
| 505 } | |
| 506 SDL_Flip(surface); | |
| 507 } | |
| 508 | |
| 509 /* | |
| 510 * Create a shadow surface suitable for fooling the app. :-) | |
| 511 */ | |
| 512 static void SDL_CreateShadowSurface(int depth) | |
| 513 { | |
| 514 Uint32 Rmask, Gmask, Bmask; | |
| 515 | |
| 516 /* Allocate the shadow surface */ | |
| 517 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 518 Rmask = (SDL_VideoSurface->format)->Rmask; | |
| 519 Gmask = (SDL_VideoSurface->format)->Gmask; | |
| 520 Bmask = (SDL_VideoSurface->format)->Bmask; | |
| 521 } else { | |
| 522 Rmask = Gmask = Bmask = 0; | |
| 523 } | |
| 524 SDL_ShadowSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
| 525 SDL_VideoSurface->w, SDL_VideoSurface->h, | |
| 526 depth, Rmask, Gmask, Bmask, 0); | |
| 527 if ( SDL_ShadowSurface == NULL ) { | |
| 528 return; | |
| 529 } | |
| 530 | |
| 531 /* 8-bit shadow surfaces report that they have exclusive palette */ | |
| 532 if ( SDL_ShadowSurface->format->palette ) { | |
| 533 SDL_ShadowSurface->flags |= SDL_HWPALETTE; | |
| 534 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
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535 SDL_memcpy(SDL_ShadowSurface->format->palette->colors, |
| 0 | 536 SDL_VideoSurface->format->palette->colors, |
| 537 SDL_VideoSurface->format->palette->ncolors* | |
| 538 sizeof(SDL_Color)); | |
| 539 } else { | |
| 540 SDL_DitherColors( | |
| 541 SDL_ShadowSurface->format->palette->colors, depth); | |
| 542 } | |
| 543 } | |
| 544 | |
| 545 /* If the video surface is resizable, the shadow should say so */ | |
| 546 if ( (SDL_VideoSurface->flags & SDL_RESIZABLE) == SDL_RESIZABLE ) { | |
| 547 SDL_ShadowSurface->flags |= SDL_RESIZABLE; | |
| 548 } | |
| 549 /* If the video surface has no frame, the shadow should say so */ | |
| 550 if ( (SDL_VideoSurface->flags & SDL_NOFRAME) == SDL_NOFRAME ) { | |
| 551 SDL_ShadowSurface->flags |= SDL_NOFRAME; | |
| 552 } | |
| 553 /* If the video surface is fullscreen, the shadow should say so */ | |
| 554 if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 555 SDL_ShadowSurface->flags |= SDL_FULLSCREEN; | |
| 556 } | |
| 557 /* If the video surface is flippable, the shadow should say so */ | |
| 558 if ( (SDL_VideoSurface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 559 SDL_ShadowSurface->flags |= SDL_DOUBLEBUF; | |
| 560 } | |
| 561 return; | |
| 562 } | |
| 563 | |
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564 #ifdef __QNXNTO__ |
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565 #include <sys/neutrino.h> |
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566 #endif /* __QNXNTO__ */ |
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567 |
| 0 | 568 /* |
| 569 * Set the requested video mode, allocating a shadow buffer if necessary. | |
| 570 */ | |
| 571 SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags) | |
| 572 { | |
| 573 SDL_VideoDevice *video, *this; | |
| 574 SDL_Surface *prev_mode, *mode; | |
| 575 int video_w; | |
| 576 int video_h; | |
| 577 int video_bpp; | |
| 578 int is_opengl; | |
| 579 SDL_GrabMode saved_grab; | |
| 580 | |
| 581 /* Start up the video driver, if necessary.. | |
| 582 WARNING: This is the only function protected this way! | |
| 583 */ | |
| 584 if ( ! current_video ) { | |
| 585 if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE) < 0 ) { | |
| 586 return(NULL); | |
| 587 } | |
| 588 } | |
| 589 this = video = current_video; | |
| 590 | |
|
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591 /* 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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592 if ( width == 0 ) { |
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593 width = video->info.current_w; |
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594 } |
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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 if ( height == 0 ) { |
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596 height = video->info.current_h; |
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597 } |
| 0 | 598 /* Default to the current video bpp */ |
| 599 if ( bpp == 0 ) { | |
| 600 flags |= SDL_ANYFORMAT; | |
| 601 bpp = SDL_VideoSurface->format->BitsPerPixel; | |
| 602 } | |
| 603 | |
| 604 /* Get a good video mode, the closest one possible */ | |
| 605 video_w = width; | |
| 606 video_h = height; | |
| 607 video_bpp = bpp; | |
| 608 if ( ! SDL_GetVideoMode(&video_w, &video_h, &video_bpp, flags) ) { | |
| 609 return(NULL); | |
| 610 } | |
| 611 | |
| 612 /* Check the requested flags */ | |
| 613 /* There's no palette in > 8 bits-per-pixel mode */ | |
| 614 if ( video_bpp > 8 ) { | |
| 615 flags &= ~SDL_HWPALETTE; | |
| 616 } | |
| 617 #if 0 | |
| 618 if ( (flags&SDL_FULLSCREEN) != SDL_FULLSCREEN ) { | |
| 619 /* There's no windowed double-buffering */ | |
| 620 flags &= ~SDL_DOUBLEBUF; | |
| 621 } | |
| 622 #endif | |
| 623 if ( (flags&SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 624 /* Use hardware surfaces when double-buffering */ | |
| 625 flags |= SDL_HWSURFACE; | |
| 626 } | |
| 627 | |
| 628 is_opengl = ( ( flags & SDL_OPENGL ) == SDL_OPENGL ); | |
| 629 if ( is_opengl ) { | |
| 630 /* These flags are for 2D video modes only */ | |
| 631 flags &= ~(SDL_HWSURFACE|SDL_DOUBLEBUF); | |
| 632 } | |
| 633 | |
|
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634 /* Reset the keyboard here so event callbacks can run */ |
|
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635 SDL_ResetKeyboard(); |
|
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636 SDL_ResetMouse(); |
| 1296 | 637 SDL_cursorstate &= ~CURSOR_USINGSW; |
|
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638 |
| 0 | 639 /* Clean up any previous video mode */ |
| 640 if ( SDL_PublicSurface != NULL ) { | |
| 641 SDL_PublicSurface = NULL; | |
| 642 } | |
| 643 if ( SDL_ShadowSurface != NULL ) { | |
| 644 SDL_Surface *ready_to_go; | |
| 645 ready_to_go = SDL_ShadowSurface; | |
| 646 SDL_ShadowSurface = NULL; | |
| 647 SDL_FreeSurface(ready_to_go); | |
| 648 } | |
| 649 if ( video->physpal ) { | |
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650 SDL_free(video->physpal->colors); |
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651 SDL_free(video->physpal); |
| 0 | 652 video->physpal = NULL; |
| 653 } | |
| 654 if( video->gammacols) { | |
|
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655 SDL_free(video->gammacols); |
| 0 | 656 video->gammacols = NULL; |
| 657 } | |
| 658 | |
| 659 /* Save the previous grab state and turn off grab for mode switch */ | |
| 660 saved_grab = SDL_WM_GrabInputOff(); | |
| 661 | |
| 662 /* Try to set the video mode, along with offset and clipping */ | |
| 663 prev_mode = SDL_VideoSurface; | |
| 664 SDL_LockCursor(); | |
| 665 SDL_VideoSurface = NULL; /* In case it's freed by driver */ | |
| 666 mode = video->SetVideoMode(this, prev_mode,video_w,video_h,video_bpp,flags); | |
| 667 if ( mode ) { /* Prevent resize events from mode change */ | |
| 1190 | 668 /* But not on OS/2 */ |
| 669 #ifndef __OS2__ | |
| 0 | 670 SDL_PrivateResize(mode->w, mode->h); |
| 1190 | 671 #endif |
|
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Fix a crash if an OpenGL video mode can't be set.
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672 |
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673 /* Sam - If we asked for OpenGL mode, and didn't get it, fail */ |
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674 if ( is_opengl && !(mode->flags & SDL_OPENGL) ) { |
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675 mode = NULL; |
|
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676 SDL_SetError("OpenGL not available"); |
|
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677 } |
|
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678 } |
| 0 | 679 /* |
| 680 * rcg11292000 | |
| 681 * If you try to set an SDL_OPENGL surface, and fail to find a | |
| 682 * matching visual, then the next call to SDL_SetVideoMode() | |
| 683 * will segfault, since we no longer point to a dummy surface, | |
| 684 * but rather NULL. | |
| 685 * Sam 11/29/00 | |
| 686 * WARNING, we need to make sure that the previous mode hasn't | |
| 687 * already been freed by the video driver. What do we do in | |
| 688 * that case? Should we call SDL_VideoInit() again? | |
| 689 */ | |
| 690 SDL_VideoSurface = (mode != NULL) ? mode : prev_mode; | |
| 691 | |
| 692 if ( (mode != NULL) && (!is_opengl) ) { | |
| 693 /* Sanity check */ | |
| 694 if ( (mode->w < width) || (mode->h < height) ) { | |
| 695 SDL_SetError("Video mode smaller than requested"); | |
| 696 return(NULL); | |
| 697 } | |
| 698 | |
| 699 /* If we have a palettized surface, create a default palette */ | |
| 700 if ( mode->format->palette ) { | |
|
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701 SDL_PixelFormat *vf = mode->format; |
| 0 | 702 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 703 video->SetColors(this, 0, vf->palette->ncolors, | |
| 704 vf->palette->colors); | |
| 705 } | |
| 706 | |
| 707 /* Clear the surface to black */ | |
| 708 video->offset_x = 0; | |
| 709 video->offset_y = 0; | |
| 710 mode->offset = 0; | |
| 711 SDL_SetClipRect(mode, NULL); | |
| 712 SDL_ClearSurface(mode); | |
| 713 | |
| 714 /* Now adjust the offsets to match the desired mode */ | |
| 715 video->offset_x = (mode->w-width)/2; | |
| 716 video->offset_y = (mode->h-height)/2; | |
| 717 mode->offset = video->offset_y*mode->pitch + | |
| 718 video->offset_x*mode->format->BytesPerPixel; | |
| 719 #ifdef DEBUG_VIDEO | |
| 720 fprintf(stderr, | |
| 721 "Requested mode: %dx%dx%d, obtained mode %dx%dx%d (offset %d)\n", | |
| 722 width, height, bpp, | |
| 723 mode->w, mode->h, mode->format->BitsPerPixel, mode->offset); | |
| 724 #endif | |
| 725 mode->w = width; | |
| 726 mode->h = height; | |
| 727 SDL_SetClipRect(mode, NULL); | |
| 728 } | |
| 729 SDL_ResetCursor(); | |
| 730 SDL_UnlockCursor(); | |
| 731 | |
| 732 /* If we failed setting a video mode, return NULL... (Uh Oh!) */ | |
| 733 if ( mode == NULL ) { | |
| 734 return(NULL); | |
| 735 } | |
| 736 | |
| 737 /* If there is no window manager, set the SDL_NOFRAME flag */ | |
| 738 if ( ! video->info.wm_available ) { | |
| 739 mode->flags |= SDL_NOFRAME; | |
| 740 } | |
| 741 | |
| 742 /* Reset the mouse cursor and grab for new video mode */ | |
| 743 SDL_SetCursor(NULL); | |
| 744 if ( video->UpdateMouse ) { | |
| 745 video->UpdateMouse(this); | |
| 746 } | |
| 747 SDL_WM_GrabInput(saved_grab); | |
| 748 SDL_GetRelativeMouseState(NULL, NULL); /* Clear first large delta */ | |
| 749 | |
|
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750 #if SDL_VIDEO_OPENGL |
|
650
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751 /* Load GL symbols (before MakeCurrent, where we need glGetString). */ |
|
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752 if ( flags & (SDL_OPENGL | SDL_OPENGLBLIT) ) { |
|
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753 |
|
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754 #if defined(__QNXNTO__) && (_NTO_VERSION < 630) |
|
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755 #define __SDL_NOGETPROCADDR__ |
|
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756 #elif defined(__MINT__) |
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757 #define __SDL_NOGETPROCADDR__ |
|
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758 #endif |
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759 #ifdef __SDL_NOGETPROCADDR__ |
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760 #define SDL_PROC(ret,func,params) video->func=func; |
|
663
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761 #else |
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762 #define SDL_PROC(ret,func,params) \ |
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763 do { \ |
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764 video->func = SDL_GL_GetProcAddress(#func); \ |
|
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765 if ( ! video->func ) { \ |
|
1141
fe1fa56dcbc6
If couldn't load a needed GL symbol in SDL_SetVideoMode(), report it more
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766 SDL_SetError("Couldn't load GL function %s: %s\n", #func, SDL_GetError()); \ |
|
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4ab6d1fd028f
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767 return(NULL); \ |
|
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768 } \ |
|
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769 } while ( 0 ); |
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770 |
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771 #endif /* __SDL_NOGETPROCADDR__ */ |
|
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772 |
|
650
fe445b59d307
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diff
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773 #include "SDL_glfuncs.h" |
|
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774 #undef SDL_PROC |
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775 } |
|
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776 #endif /* SDL_VIDEO_OPENGL */ |
|
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777 |
| 0 | 778 /* If we're running OpenGL, make the context current */ |
| 779 if ( (video->screen->flags & SDL_OPENGL) && | |
| 780 video->GL_MakeCurrent ) { | |
| 781 if ( video->GL_MakeCurrent(this) < 0 ) { | |
| 782 return(NULL); | |
| 783 } | |
| 784 } | |
| 785 | |
| 786 /* Set up a fake SDL surface for OpenGL "blitting" */ | |
| 787 if ( (flags & SDL_OPENGLBLIT) == SDL_OPENGLBLIT ) { | |
| 788 /* Load GL functions for performing the texture updates */ | |
|
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|
789 #if SDL_VIDEO_OPENGL |
| 0 | 790 |
| 791 /* Create a software surface for blitting */ | |
| 792 #ifdef GL_VERSION_1_2 | |
| 793 /* If the implementation either supports the packed pixels | |
| 794 extension, or implements the core OpenGL 1.2 API, it will | |
| 795 support the GL_UNSIGNED_SHORT_5_6_5 texture format. | |
| 796 */ | |
| 797 if ( (bpp == 16) && | |
|
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Sam Lantinga <slouken@libsdl.org>
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|
798 (SDL_strstr((const char *)video->glGetString(GL_EXTENSIONS), "GL_EXT_packed_pixels") || |
|
1341
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Configure dynamically generates SDL_config.h
Sam Lantinga <slouken@libsdl.org>
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799 (SDL_atof((const char *)video->glGetString(GL_VERSION)) >= 1.2f)) |
|
282
b42d80e73896
Fixed SDL_OPENGLBLIT with OpenGL API newer than 1.2
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|
800 ) { |
| 0 | 801 video->is_32bit = 0; |
| 802 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 803 flags, | |
| 804 width, | |
| 805 height, | |
| 806 16, | |
| 807 31 << 11, | |
| 808 63 << 5, | |
| 809 31, | |
| 810 0 | |
| 811 ); | |
| 812 } | |
| 813 else | |
| 814 #endif /* OpenGL 1.2 */ | |
| 815 { | |
| 816 video->is_32bit = 1; | |
| 817 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 818 flags, | |
| 819 width, | |
| 820 height, | |
| 821 32, | |
| 822 #if SDL_BYTEORDER == SDL_LIL_ENDIAN | |
| 823 0x000000FF, | |
| 824 0x0000FF00, | |
| 825 0x00FF0000, | |
| 826 0xFF000000 | |
| 827 #else | |
| 828 0xFF000000, | |
| 829 0x00FF0000, | |
| 830 0x0000FF00, | |
| 831 0x000000FF | |
| 832 #endif | |
| 833 ); | |
| 834 } | |
| 835 if ( ! SDL_VideoSurface ) { | |
| 836 return(NULL); | |
| 837 } | |
| 838 SDL_VideoSurface->flags = mode->flags | SDL_OPENGLBLIT; | |
| 839 | |
| 840 /* Free the original video mode surface (is this safe?) */ | |
| 841 SDL_FreeSurface(mode); | |
| 842 | |
|
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843 /* Set the surface completely opaque & white by default */ |
|
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844 SDL_memset( SDL_VideoSurface->pixels, 255, SDL_VideoSurface->h * SDL_VideoSurface->pitch ); |
| 0 | 845 video->glGenTextures( 1, &video->texture ); |
| 846 video->glBindTexture( GL_TEXTURE_2D, video->texture ); | |
| 847 video->glTexImage2D( | |
| 848 GL_TEXTURE_2D, | |
| 849 0, | |
| 850 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 851 256, | |
| 852 256, | |
| 853 0, | |
| 854 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 855 #ifdef GL_VERSION_1_2 | |
| 856 video->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 857 #else | |
| 858 GL_UNSIGNED_BYTE, | |
| 859 #endif | |
| 860 NULL); | |
| 861 | |
| 862 video->UpdateRects = SDL_GL_UpdateRectsLock; | |
| 863 #else | |
|
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|
864 SDL_SetError("Somebody forgot to #define SDL_VIDEO_OPENGL"); |
| 0 | 865 return(NULL); |
| 866 #endif | |
| 867 } | |
| 868 | |
| 869 /* Create a shadow surface if necessary */ | |
| 870 /* There are three conditions under which we create a shadow surface: | |
| 871 1. We need a particular bits-per-pixel that we didn't get. | |
| 872 2. We need a hardware palette and didn't get one. | |
| 873 3. We need a software surface and got a hardware surface. | |
| 874 */ | |
| 875 if ( !(SDL_VideoSurface->flags & SDL_OPENGL) && | |
| 876 ( | |
| 877 ( !(flags&SDL_ANYFORMAT) && | |
| 878 (SDL_VideoSurface->format->BitsPerPixel != bpp)) || | |
| 879 ( (flags&SDL_HWPALETTE) && | |
| 880 !(SDL_VideoSurface->flags&SDL_HWPALETTE)) || | |
| 881 /* If the surface is in hardware, video writes are visible | |
| 882 as soon as they are performed, so we need to buffer them | |
| 883 */ | |
| 884 ( ((flags&SDL_HWSURFACE) == SDL_SWSURFACE) && | |
|
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885 (SDL_VideoSurface->flags&SDL_HWSURFACE)) || |
|
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886 ( (flags&SDL_DOUBLEBUF) && |
|
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887 (SDL_VideoSurface->flags&SDL_HWSURFACE) && |
|
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888 !(SDL_VideoSurface->flags&SDL_DOUBLEBUF)) |
| 0 | 889 ) ) { |
| 890 SDL_CreateShadowSurface(bpp); | |
| 891 if ( SDL_ShadowSurface == NULL ) { | |
| 892 SDL_SetError("Couldn't create shadow surface"); | |
| 893 return(NULL); | |
| 894 } | |
| 895 SDL_PublicSurface = SDL_ShadowSurface; | |
| 896 } else { | |
| 897 SDL_PublicSurface = SDL_VideoSurface; | |
| 898 } | |
| 899 video->info.vfmt = SDL_VideoSurface->format; | |
|
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900 video->info.current_w = SDL_VideoSurface->w; |
|
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901 video->info.current_h = SDL_VideoSurface->h; |
| 0 | 902 |
| 903 /* We're done! */ | |
| 904 return(SDL_PublicSurface); | |
| 905 } | |
| 906 | |
| 907 /* | |
| 908 * Convert a surface into the video pixel format. | |
| 909 */ | |
| 910 SDL_Surface * SDL_DisplayFormat (SDL_Surface *surface) | |
| 911 { | |
| 912 Uint32 flags; | |
| 913 | |
| 914 if ( ! SDL_PublicSurface ) { | |
| 915 SDL_SetError("No video mode has been set"); | |
| 916 return(NULL); | |
| 917 } | |
| 918 /* Set the flags appropriate for copying to display surface */ | |
|
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919 if (((SDL_PublicSurface->flags&SDL_HWSURFACE) == SDL_HWSURFACE) && current_video->info.blit_hw) |
|
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920 flags = SDL_HWSURFACE; |
|
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921 else |
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|
922 flags = SDL_SWSURFACE; |
| 0 | 923 #ifdef AUTORLE_DISPLAYFORMAT |
| 924 flags |= (surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA)); | |
| 925 flags |= SDL_RLEACCELOK; | |
| 926 #else | |
| 927 flags |= surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA|SDL_RLEACCELOK); | |
| 928 #endif | |
| 929 return(SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags)); | |
| 930 } | |
| 931 | |
| 932 /* | |
| 933 * Convert a surface into a format that's suitable for blitting to | |
| 934 * the screen, but including an alpha channel. | |
| 935 */ | |
| 936 SDL_Surface *SDL_DisplayFormatAlpha(SDL_Surface *surface) | |
| 937 { | |
| 938 SDL_PixelFormat *vf; | |
| 939 SDL_PixelFormat *format; | |
| 940 SDL_Surface *converted; | |
| 941 Uint32 flags; | |
| 942 /* default to ARGB8888 */ | |
| 943 Uint32 amask = 0xff000000; | |
| 944 Uint32 rmask = 0x00ff0000; | |
| 945 Uint32 gmask = 0x0000ff00; | |
| 946 Uint32 bmask = 0x000000ff; | |
| 947 | |
| 948 if ( ! SDL_PublicSurface ) { | |
| 949 SDL_SetError("No video mode has been set"); | |
| 950 return(NULL); | |
| 951 } | |
| 952 vf = SDL_PublicSurface->format; | |
| 953 | |
| 954 switch(vf->BytesPerPixel) { | |
| 955 case 2: | |
| 956 /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}. | |
| 957 For anything else (like ARGB4444) it doesn't matter | |
| 958 since we have no special code for it anyway */ | |
| 959 if ( (vf->Rmask == 0x1f) && | |
| 960 (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) { | |
| 961 rmask = 0xff; | |
| 962 bmask = 0xff0000; | |
| 963 } | |
| 964 break; | |
| 965 | |
| 966 case 3: | |
| 967 case 4: | |
| 968 /* Keep the video format, as long as the high 8 bits are | |
| 969 unused or alpha */ | |
| 970 if ( (vf->Rmask == 0xff) && (vf->Bmask == 0xff0000) ) { | |
| 971 rmask = 0xff; | |
| 972 bmask = 0xff0000; | |
| 973 } | |
| 974 break; | |
| 975 | |
| 976 default: | |
| 977 /* We have no other optimised formats right now. When/if a new | |
| 978 optimised alpha format is written, add the converter here */ | |
| 979 break; | |
| 980 } | |
| 981 format = SDL_AllocFormat(32, rmask, gmask, bmask, amask); | |
| 982 flags = SDL_PublicSurface->flags & SDL_HWSURFACE; | |
| 983 flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); | |
| 984 converted = SDL_ConvertSurface(surface, format, flags); | |
| 985 SDL_FreeFormat(format); | |
| 986 return(converted); | |
| 987 } | |
| 988 | |
| 989 /* | |
| 990 * Update a specific portion of the physical screen | |
| 991 */ | |
| 992 void SDL_UpdateRect(SDL_Surface *screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h) | |
| 993 { | |
| 994 if ( screen ) { | |
| 995 SDL_Rect rect; | |
| 996 | |
| 997 /* Perform some checking */ | |
| 998 if ( w == 0 ) | |
| 999 w = screen->w; | |
| 1000 if ( h == 0 ) | |
| 1001 h = screen->h; | |
| 1002 if ( (int)(x+w) > screen->w ) | |
| 1003 return; | |
| 1004 if ( (int)(y+h) > screen->h ) | |
| 1005 return; | |
| 1006 | |
| 1007 /* Fill the rectangle */ | |
|
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1008 rect.x = (Sint16)x; |
|
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1009 rect.y = (Sint16)y; |
|
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1010 rect.w = (Uint16)w; |
|
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1011 rect.h = (Uint16)h; |
| 0 | 1012 SDL_UpdateRects(screen, 1, &rect); |
| 1013 } | |
| 1014 } | |
| 1015 void SDL_UpdateRects (SDL_Surface *screen, int numrects, SDL_Rect *rects) | |
| 1016 { | |
| 1017 int i; | |
| 1018 SDL_VideoDevice *video = current_video; | |
| 1019 SDL_VideoDevice *this = current_video; | |
| 1020 | |
|
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1021 if ( (screen->flags & (SDL_OPENGL | SDL_OPENGLBLIT)) == SDL_OPENGL ) { |
|
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1022 SDL_SetError("OpenGL active, use SDL_GL_SwapBuffers()"); |
|
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1023 return; |
|
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1024 } |
| 0 | 1025 if ( screen == SDL_ShadowSurface ) { |
| 1026 /* Blit the shadow surface using saved mapping */ | |
|
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1027 SDL_Palette *pal = screen->format->palette; |
| 0 | 1028 SDL_Color *saved_colors = NULL; |
|
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1029 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1030 /* simulated 8bpp, use correct physical palette */ |
| 1031 saved_colors = pal->colors; | |
| 1032 if ( video->gammacols ) { | |
| 1033 /* gamma-corrected palette */ | |
| 1034 pal->colors = video->gammacols; | |
| 1035 } else if ( video->physpal ) { | |
| 1036 /* physical palette different from logical */ | |
| 1037 pal->colors = video->physpal->colors; | |
| 1038 } | |
| 1039 } | |
| 1040 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { | |
| 1041 SDL_LockCursor(); | |
| 1042 SDL_DrawCursor(SDL_ShadowSurface); | |
| 1043 for ( i=0; i<numrects; ++i ) { | |
| 1044 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1045 SDL_VideoSurface, &rects[i]); | |
| 1046 } | |
| 1047 SDL_EraseCursor(SDL_ShadowSurface); | |
| 1048 SDL_UnlockCursor(); | |
| 1049 } else { | |
| 1050 for ( i=0; i<numrects; ++i ) { | |
| 1051 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1052 SDL_VideoSurface, &rects[i]); | |
| 1053 } | |
| 1054 } | |
|
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1055 if ( saved_colors ) { |
| 0 | 1056 pal->colors = saved_colors; |
|
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|
1057 } |
| 0 | 1058 |
| 1059 /* Fall through to video surface update */ | |
| 1060 screen = SDL_VideoSurface; | |
| 1061 } | |
| 1062 if ( screen == SDL_VideoSurface ) { | |
| 1063 /* Update the video surface */ | |
| 1064 if ( screen->offset ) { | |
| 1065 for ( i=0; i<numrects; ++i ) { | |
| 1066 rects[i].x += video->offset_x; | |
| 1067 rects[i].y += video->offset_y; | |
| 1068 } | |
| 1069 video->UpdateRects(this, numrects, rects); | |
| 1070 for ( i=0; i<numrects; ++i ) { | |
| 1071 rects[i].x -= video->offset_x; | |
| 1072 rects[i].y -= video->offset_y; | |
| 1073 } | |
| 1074 } else { | |
| 1075 video->UpdateRects(this, numrects, rects); | |
| 1076 } | |
| 1077 } | |
| 1078 } | |
| 1079 | |
| 1080 /* | |
| 1081 * Performs hardware double buffering, if possible, or a full update if not. | |
| 1082 */ | |
| 1083 int SDL_Flip(SDL_Surface *screen) | |
| 1084 { | |
| 1085 SDL_VideoDevice *video = current_video; | |
| 1086 /* Copy the shadow surface to the video surface */ | |
| 1087 if ( screen == SDL_ShadowSurface ) { | |
| 1088 SDL_Rect rect; | |
|
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|
1089 SDL_Palette *pal = screen->format->palette; |
| 0 | 1090 SDL_Color *saved_colors = NULL; |
|
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|
1091 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1092 /* simulated 8bpp, use correct physical palette */ |
| 1093 saved_colors = pal->colors; | |
| 1094 if ( video->gammacols ) { | |
| 1095 /* gamma-corrected palette */ | |
| 1096 pal->colors = video->gammacols; | |
| 1097 } else if ( video->physpal ) { | |
| 1098 /* physical palette different from logical */ | |
| 1099 pal->colors = video->physpal->colors; | |
| 1100 } | |
| 1101 } | |
| 1102 | |
| 1103 rect.x = 0; | |
| 1104 rect.y = 0; | |
| 1105 rect.w = screen->w; | |
| 1106 rect.h = screen->h; | |
|
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1107 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { |
|
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1108 SDL_LockCursor(); |
|
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1109 SDL_DrawCursor(SDL_ShadowSurface); |
|
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1110 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1111 SDL_VideoSurface, &rect); |
|
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1112 SDL_EraseCursor(SDL_ShadowSurface); |
|
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1113 SDL_UnlockCursor(); |
|
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1114 } else { |
|
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1115 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1116 SDL_VideoSurface, &rect); |
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1117 } |
|
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1118 if ( saved_colors ) { |
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1119 pal->colors = saved_colors; |
|
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1120 } |
| 0 | 1121 |
|
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1122 /* Fall through to video surface update */ |
| 0 | 1123 screen = SDL_VideoSurface; |
| 1124 } | |
| 1125 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 1126 SDL_VideoDevice *this = current_video; | |
| 1127 return(video->FlipHWSurface(this, SDL_VideoSurface)); | |
| 1128 } else { | |
| 1129 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1130 } | |
| 1131 return(0); | |
| 1132 } | |
| 1133 | |
| 1134 static void SetPalette_logical(SDL_Surface *screen, SDL_Color *colors, | |
| 1135 int firstcolor, int ncolors) | |
| 1136 { | |
|
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1137 SDL_Palette *pal = screen->format->palette; |
| 0 | 1138 SDL_Palette *vidpal; |
| 1139 | |
| 1140 if ( colors != (pal->colors + firstcolor) ) { | |
|
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1141 SDL_memcpy(pal->colors + firstcolor, colors, |
| 0 | 1142 ncolors * sizeof(*colors)); |
| 1143 } | |
| 1144 | |
| 3995 | 1145 if ( current_video && SDL_VideoSurface ) { |
| 1146 vidpal = SDL_VideoSurface->format->palette; | |
| 1147 if ( (screen == SDL_ShadowSurface) && vidpal ) { | |
| 1148 /* | |
| 1149 * This is a shadow surface, and the physical | |
| 1150 * framebuffer is also indexed. Propagate the | |
| 1151 * changes to its logical palette so that | |
| 1152 * updates are always identity blits | |
| 1153 */ | |
| 1154 SDL_memcpy(vidpal->colors + firstcolor, colors, | |
| 1155 ncolors * sizeof(*colors)); | |
| 1156 } | |
| 0 | 1157 } |
| 1158 SDL_FormatChanged(screen); | |
| 1159 } | |
| 1160 | |
| 1161 static int SetPalette_physical(SDL_Surface *screen, | |
| 1162 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1163 { | |
| 1164 SDL_VideoDevice *video = current_video; | |
| 1165 int gotall = 1; | |
| 1166 | |
| 1167 if ( video->physpal ) { | |
| 1168 /* We need to copy the new colors, since we haven't | |
| 1169 * already done the copy in the logical set above. | |
| 1170 */ | |
|
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parents:
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|
1171 SDL_memcpy(video->physpal->colors + firstcolor, |
| 0 | 1172 colors, ncolors * sizeof(*colors)); |
| 1173 } | |
| 1174 if ( screen == SDL_ShadowSurface ) { | |
| 1175 if ( SDL_VideoSurface->flags & SDL_HWPALETTE ) { | |
| 1176 /* | |
| 1177 * The real screen is also indexed - set its physical | |
| 1178 * palette. The physical palette does not include the | |
| 1179 * gamma modification, we apply it directly instead, | |
| 1180 * but this only happens if we have hardware palette. | |
| 1181 */ | |
| 1182 screen = SDL_VideoSurface; | |
| 1183 } else { | |
| 1184 /* | |
| 1185 * The video surface is not indexed - invalidate any | |
| 1186 * active shadow-to-video blit mappings. | |
| 1187 */ | |
| 1188 if ( screen->map->dst == SDL_VideoSurface ) { | |
| 1189 SDL_InvalidateMap(screen->map); | |
| 1190 } | |
| 1191 if ( video->gamma ) { | |
| 1192 if( ! video->gammacols ) { | |
| 1193 SDL_Palette *pp = video->physpal; | |
| 1194 if(!pp) | |
| 1195 pp = screen->format->palette; | |
|
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|
1196 video->gammacols = SDL_malloc(pp->ncolors |
| 0 | 1197 * sizeof(SDL_Color)); |
| 1198 SDL_ApplyGamma(video->gamma, | |
| 1199 pp->colors, | |
| 1200 video->gammacols, | |
| 1201 pp->ncolors); | |
| 1202 } else { | |
| 1203 SDL_ApplyGamma(video->gamma, colors, | |
| 1204 video->gammacols | |
| 1205 + firstcolor, | |
| 1206 ncolors); | |
| 1207 } | |
| 1208 } | |
| 1209 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1210 } | |
| 1211 } | |
| 1212 | |
| 1213 if ( screen == SDL_VideoSurface ) { | |
| 1214 SDL_Color gcolors[256]; | |
| 1215 | |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1216 if ( video->gamma ) { |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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diff
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|
1217 SDL_ApplyGamma(video->gamma, colors, gcolors, ncolors); |
| 0 | 1218 colors = gcolors; |
| 1219 } | |
| 1220 gotall = video->SetColors(video, firstcolor, ncolors, colors); | |
| 1221 if ( ! gotall ) { | |
| 1222 /* The video flags shouldn't have SDL_HWPALETTE, and | |
| 1223 the video driver is responsible for copying back the | |
| 1224 correct colors into the video surface palette. | |
| 1225 */ | |
| 1226 ; | |
| 1227 } | |
| 1228 SDL_CursorPaletteChanged(); | |
| 1229 } | |
| 1230 return gotall; | |
| 1231 } | |
| 1232 | |
| 1233 /* | |
| 1234 * Set the physical and/or logical colormap of a surface: | |
| 1235 * Only the screen has a physical colormap. It determines what is actually | |
| 1236 * sent to the display. | |
| 1237 * The logical colormap is used to map blits to/from the surface. | |
| 1238 * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL | |
| 1239 * | |
| 1240 * Return nonzero if all colours were set as requested, or 0 otherwise. | |
| 1241 */ | |
| 1242 int SDL_SetPalette(SDL_Surface *screen, int which, | |
| 1243 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1244 { | |
|
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|
1245 SDL_Palette *pal; |
| 0 | 1246 int gotall; |
| 1247 int palsize; | |
| 1248 | |
| 3995 | 1249 if ( !screen ) { |
| 34 | 1250 return 0; |
| 1251 } | |
| 3995 | 1252 if ( !current_video || screen != SDL_PublicSurface ) { |
|
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|
1253 /* only screens have physical palettes */ |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1254 which &= ~SDL_PHYSPAL; |
| 3995 | 1255 } else if ( (screen->flags & SDL_HWPALETTE) != SDL_HWPALETTE ) { |
|
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|
1256 /* hardware palettes required for split colormaps */ |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1257 which |= SDL_PHYSPAL | SDL_LOGPAL; |
| 0 | 1258 } |
| 1259 | |
| 1260 /* Verify the parameters */ | |
| 1261 pal = screen->format->palette; | |
| 1262 if( !pal ) { | |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1263 return 0; /* not a palettized surface */ |
| 0 | 1264 } |
| 1265 gotall = 1; | |
| 1266 palsize = 1 << screen->format->BitsPerPixel; | |
| 1267 if ( ncolors > (palsize - firstcolor) ) { | |
|
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|
1268 ncolors = (palsize - firstcolor); |
| 0 | 1269 gotall = 0; |
| 1270 } | |
| 1271 | |
| 1272 if ( which & SDL_LOGPAL ) { | |
| 1273 /* | |
| 1274 * Logical palette change: The actual screen isn't affected, | |
| 1275 * but the internal colormap is altered so that the | |
| 1276 * interpretation of the pixel values (for blits etc) is | |
| 1277 * changed. | |
| 1278 */ | |
|
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|
1279 SetPalette_logical(screen, colors, firstcolor, ncolors); |
| 0 | 1280 } |
| 1281 if ( which & SDL_PHYSPAL ) { | |
| 1282 SDL_VideoDevice *video = current_video; | |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1283 /* |
| 0 | 1284 * Physical palette change: This doesn't affect the |
| 1285 * program's idea of what the screen looks like, but changes | |
| 1286 * its actual appearance. | |
| 1287 */ | |
| 3995 | 1288 if ( !video->physpal && !(which & SDL_LOGPAL) ) { |
| 0 | 1289 /* Lazy physical palette allocation */ |
|
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1290 int size; |
|
1336
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|
1291 SDL_Palette *pp = SDL_malloc(sizeof(*pp)); |
|
944
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
1292 if ( !pp ) { |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
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parents:
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|
1293 return 0; |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
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|
1294 } |
| 3995 | 1295 video->physpal = pp; |
| 0 | 1296 pp->ncolors = pal->ncolors; |
| 1297 size = pp->ncolors * sizeof(SDL_Color); | |
|
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Sam Lantinga <slouken@libsdl.org>
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|
1298 pp->colors = SDL_malloc(size); |
|
944
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
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parents:
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diff
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|
1299 if ( !pp->colors ) { |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
1300 return 0; |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1301 } |
|
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|
1302 SDL_memcpy(pp->colors, pal->colors, size); |
| 0 | 1303 } |
| 1304 if ( ! SetPalette_physical(screen, | |
| 1305 colors, firstcolor, ncolors) ) { | |
| 1306 gotall = 0; | |
| 1307 } | |
| 1308 } | |
| 1309 return gotall; | |
| 1310 } | |
| 1311 | |
| 1312 int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor, | |
| 1313 int ncolors) | |
| 1314 { | |
|
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|
1315 return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, |
| 0 | 1316 colors, firstcolor, ncolors); |
| 1317 } | |
| 1318 | |
| 1319 /* | |
| 1320 * Clean up the video subsystem | |
| 1321 */ | |
| 1322 void SDL_VideoQuit (void) | |
| 1323 { | |
| 1324 SDL_Surface *ready_to_go; | |
| 1325 | |
| 1326 if ( current_video ) { | |
| 1327 SDL_VideoDevice *video = current_video; | |
| 1328 SDL_VideoDevice *this = current_video; | |
| 1329 | |
| 1330 /* Halt event processing before doing anything else */ | |
| 1331 SDL_StopEventLoop(); | |
| 1332 | |
| 1333 /* Clean up allocated window manager items */ | |
| 1334 if ( SDL_PublicSurface ) { | |
| 1335 SDL_PublicSurface = NULL; | |
| 1336 } | |
| 1337 SDL_CursorQuit(); | |
| 1338 | |
| 1339 /* Just in case... */ | |
| 1340 SDL_WM_GrabInputOff(); | |
| 1341 | |
| 1342 /* Clean up the system video */ | |
| 1343 video->VideoQuit(this); | |
| 1344 | |
| 1345 /* Free any lingering surfaces */ | |
| 1346 ready_to_go = SDL_ShadowSurface; | |
| 1347 SDL_ShadowSurface = NULL; | |
| 1348 SDL_FreeSurface(ready_to_go); | |
| 1349 if ( SDL_VideoSurface != NULL ) { | |
| 1350 ready_to_go = SDL_VideoSurface; | |
| 1351 SDL_VideoSurface = NULL; | |
| 1352 SDL_FreeSurface(ready_to_go); | |
| 1353 } | |
| 1354 SDL_PublicSurface = NULL; | |
| 1355 | |
| 1356 /* Clean up miscellaneous memory */ | |
| 1357 if ( video->physpal ) { | |
|
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Sam Lantinga <slouken@libsdl.org>
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|
1358 SDL_free(video->physpal->colors); |
|
3692456e7b0f
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Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1359 SDL_free(video->physpal); |
| 0 | 1360 video->physpal = NULL; |
| 1361 } | |
| 1362 if ( video->gammacols ) { | |
|
1336
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|
1363 SDL_free(video->gammacols); |
| 0 | 1364 video->gammacols = NULL; |
| 1365 } | |
| 1366 if ( video->gamma ) { | |
|
1336
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Sam Lantinga <slouken@libsdl.org>
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|
1367 SDL_free(video->gamma); |
| 0 | 1368 video->gamma = NULL; |
| 1369 } | |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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diff
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|
1370 if ( video->wm_title != NULL ) { |
|
1336
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|
1371 SDL_free(video->wm_title); |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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diff
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|
1372 video->wm_title = NULL; |
| 0 | 1373 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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diff
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|
1374 if ( video->wm_icon != NULL ) { |
|
1336
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|
1375 SDL_free(video->wm_icon); |
|
58
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* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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diff
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|
1376 video->wm_icon = NULL; |
| 0 | 1377 } |
| 1378 | |
| 1379 /* Finish cleaning up video subsystem */ | |
| 1380 video->free(this); | |
| 1381 current_video = NULL; | |
| 1382 } | |
| 1383 return; | |
| 1384 } | |
| 1385 | |
| 1386 /* Load the GL driver library */ | |
| 1387 int SDL_GL_LoadLibrary(const char *path) | |
| 1388 { | |
| 1389 SDL_VideoDevice *video = current_video; | |
| 1390 SDL_VideoDevice *this = current_video; | |
| 1391 int retval; | |
| 1392 | |
| 1393 retval = -1; | |
|
423
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More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1394 if ( video == NULL ) { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1395 SDL_SetError("Video subsystem has not been initialized"); |
| 0 | 1396 } else { |
|
423
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1397 if ( video->GL_LoadLibrary ) { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1398 retval = video->GL_LoadLibrary(this, path); |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1399 } else { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1400 SDL_SetError("No dynamic GL support in video driver"); |
|
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|
1401 } |
| 0 | 1402 } |
| 1403 return(retval); | |
| 1404 } | |
| 1405 | |
| 1406 void *SDL_GL_GetProcAddress(const char* proc) | |
| 1407 { | |
| 1408 SDL_VideoDevice *video = current_video; | |
| 1409 SDL_VideoDevice *this = current_video; | |
| 1410 void *func; | |
| 1411 | |
| 1412 func = NULL; | |
| 1413 if ( video->GL_GetProcAddress ) { | |
| 1414 if ( video->gl_config.driver_loaded ) { | |
| 1415 func = video->GL_GetProcAddress(this, proc); | |
| 1416 } else { | |
| 1417 SDL_SetError("No GL driver has been loaded"); | |
| 1418 } | |
| 1419 } else { | |
| 1420 SDL_SetError("No dynamic GL support in video driver"); | |
| 1421 } | |
| 1422 return func; | |
| 1423 } | |
| 1424 | |
| 1425 /* Set the specified GL attribute for setting up a GL video mode */ | |
| 1426 int SDL_GL_SetAttribute( SDL_GLattr attr, int value ) | |
| 1427 { | |
| 1428 int retval; | |
| 1429 SDL_VideoDevice *video = current_video; | |
| 1430 | |
| 1431 retval = 0; | |
| 1432 switch (attr) { | |
| 1433 case SDL_GL_RED_SIZE: | |
| 1434 video->gl_config.red_size = value; | |
| 1435 break; | |
| 1436 case SDL_GL_GREEN_SIZE: | |
| 1437 video->gl_config.green_size = value; | |
| 1438 break; | |
| 1439 case SDL_GL_BLUE_SIZE: | |
| 1440 video->gl_config.blue_size = value; | |
| 1441 break; | |
| 1442 case SDL_GL_ALPHA_SIZE: | |
| 1443 video->gl_config.alpha_size = value; | |
| 1444 break; | |
| 1445 case SDL_GL_DOUBLEBUFFER: | |
| 1446 video->gl_config.double_buffer = value; | |
| 1447 break; | |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1448 case SDL_GL_BUFFER_SIZE: |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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diff
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|
1449 video->gl_config.buffer_size = value; |
| 0 | 1450 break; |
| 1451 case SDL_GL_DEPTH_SIZE: | |
| 1452 video->gl_config.depth_size = value; | |
| 1453 break; | |
| 1454 case SDL_GL_STENCIL_SIZE: | |
| 1455 video->gl_config.stencil_size = value; | |
| 1456 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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diff
changeset
|
1457 case SDL_GL_ACCUM_RED_SIZE: |
| 0 | 1458 video->gl_config.accum_red_size = value; |
| 1459 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1460 case SDL_GL_ACCUM_GREEN_SIZE: |
| 0 | 1461 video->gl_config.accum_green_size = value; |
| 1462 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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433
diff
changeset
|
1463 case SDL_GL_ACCUM_BLUE_SIZE: |
| 0 | 1464 video->gl_config.accum_blue_size = value; |
| 1465 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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433
diff
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|
1466 case SDL_GL_ACCUM_ALPHA_SIZE: |
| 0 | 1467 video->gl_config.accum_alpha_size = value; |
| 1468 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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433
diff
changeset
|
1469 case SDL_GL_STEREO: |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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diff
changeset
|
1470 video->gl_config.stereo = value; |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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|
1471 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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|
1472 case SDL_GL_MULTISAMPLEBUFFERS: |
|
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
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|
1473 video->gl_config.multisamplebuffers = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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diff
changeset
|
1474 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
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changeset
|
1475 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
|
1476 video->gl_config.multisamplesamples = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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parents:
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diff
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|
1477 break; |
| 1737 | 1478 case SDL_GL_ACCELERATED_VISUAL: |
| 1479 video->gl_config.accelerated = value; | |
| 1480 break; | |
|
1736
3b2a92126f4d
Implemented bug #2, 117:
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parents:
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diff
changeset
|
1481 case SDL_GL_SWAP_CONTROL: |
|
3b2a92126f4d
Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents:
1545
diff
changeset
|
1482 video->gl_config.swap_control = value; |
|
3b2a92126f4d
Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
1483 break; |
| 0 | 1484 default: |
| 1485 SDL_SetError("Unknown OpenGL attribute"); | |
| 1486 retval = -1; | |
| 1487 break; | |
| 1488 } | |
| 1489 return(retval); | |
| 1490 } | |
| 1491 | |
| 1492 /* Retrieve an attribute value from the windowing system. */ | |
| 1493 int SDL_GL_GetAttribute(SDL_GLattr attr, int* value) | |
| 1494 { | |
| 1495 int retval = -1; | |
| 1496 SDL_VideoDevice* video = current_video; | |
| 1497 SDL_VideoDevice* this = current_video; | |
| 1498 | |
| 1499 if ( video->GL_GetAttribute ) { | |
| 1500 retval = this->GL_GetAttribute(this, attr, value); | |
|
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1501 } else { |
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1502 *value = 0; |
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1503 SDL_SetError("GL_GetAttribute not supported"); |
| 0 | 1504 } |
| 1505 return retval; | |
| 1506 } | |
| 1507 | |
| 1508 /* Perform a GL buffer swap on the current GL context */ | |
| 1509 void SDL_GL_SwapBuffers(void) | |
| 1510 { | |
| 1511 SDL_VideoDevice *video = current_video; | |
| 1512 SDL_VideoDevice *this = current_video; | |
| 1513 | |
| 1514 if ( video->screen->flags & SDL_OPENGL ) { | |
|
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1515 video->GL_SwapBuffers(this); |
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1516 } else { |
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1517 SDL_SetError("OpenGL video mode has not been set"); |
| 0 | 1518 } |
| 1519 } | |
| 1520 | |
| 1521 /* Update rects with locking */ | |
| 1522 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect *rects) | |
| 1523 { | |
| 1524 SDL_GL_Lock(); | |
| 1525 SDL_GL_UpdateRects(numrects, rects); | |
| 1526 SDL_GL_Unlock(); | |
| 1527 } | |
| 1528 | |
| 1529 /* Update rects without state setting and changing (the caller is responsible for it) */ | |
| 1530 void SDL_GL_UpdateRects(int numrects, SDL_Rect *rects) | |
| 1531 { | |
|
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1532 #if SDL_VIDEO_OPENGL |
| 0 | 1533 SDL_VideoDevice *this = current_video; |
| 1534 SDL_Rect update, tmp; | |
| 1535 int x, y, i; | |
| 1536 | |
| 1537 for ( i = 0; i < numrects; i++ ) | |
| 1538 { | |
| 1539 tmp.y = rects[i].y; | |
| 1540 tmp.h = rects[i].h; | |
| 1541 for ( y = 0; y <= rects[i].h / 256; y++ ) | |
| 1542 { | |
| 1543 tmp.x = rects[i].x; | |
| 1544 tmp.w = rects[i].w; | |
| 1545 for ( x = 0; x <= rects[i].w / 256; x++ ) | |
| 1546 { | |
| 1547 update.x = tmp.x; | |
| 1548 update.y = tmp.y; | |
| 1549 update.w = tmp.w; | |
| 1550 update.h = tmp.h; | |
| 1551 | |
| 1552 if ( update.w > 256 ) | |
| 1553 update.w = 256; | |
| 1554 | |
| 1555 if ( update.h > 256 ) | |
| 1556 update.h = 256; | |
| 1557 | |
| 1558 this->glFlush(); | |
| 1559 this->glTexSubImage2D( | |
| 1560 GL_TEXTURE_2D, | |
| 1561 0, | |
| 1562 0, | |
| 1563 0, | |
| 1564 update.w, | |
| 1565 update.h, | |
| 1566 this->is_32bit? GL_RGBA : GL_RGB, | |
| 1567 #ifdef GL_VERSION_1_2 | |
| 1568 this->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 1569 #else | |
| 1570 GL_UNSIGNED_BYTE, | |
| 1571 #endif | |
| 1572 (Uint8 *)this->screen->pixels + | |
| 1573 this->screen->format->BytesPerPixel * update.x + | |
| 1574 update.y * this->screen->pitch ); | |
| 1575 | |
| 1576 this->glFlush(); | |
| 1577 /* | |
| 1578 * Note the parens around the function name: | |
| 1579 * This is because some OpenGL implementations define glTexCoord etc | |
| 1580 * as macros, and we don't want them expanded here. | |
| 1581 */ | |
| 1582 this->glBegin(GL_TRIANGLE_STRIP); | |
| 1583 (this->glTexCoord2f)( 0.0, 0.0 ); | |
| 1584 (this->glVertex2i)( update.x, update.y ); | |
| 1585 (this->glTexCoord2f)( (float)(update.w / 256.0), 0.0 ); | |
| 1586 (this->glVertex2i)( update.x + update.w, update.y ); | |
| 1587 (this->glTexCoord2f)( 0.0, (float)(update.h / 256.0) ); | |
| 1588 (this->glVertex2i)( update.x, update.y + update.h ); | |
| 1589 (this->glTexCoord2f)( (float)(update.w / 256.0), (float)(update.h / 256.0) ); | |
| 1590 (this->glVertex2i)( update.x + update.w , update.y + update.h ); | |
| 1591 this->glEnd(); | |
| 1592 | |
| 1593 tmp.x += 256; | |
| 1594 tmp.w -= 256; | |
| 1595 } | |
| 1596 tmp.y += 256; | |
| 1597 tmp.h -= 256; | |
| 1598 } | |
| 1599 } | |
| 1600 #endif | |
| 1601 } | |
| 1602 | |
| 1603 /* Lock == save current state */ | |
| 1604 void SDL_GL_Lock() | |
| 1605 { | |
|
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1606 #if SDL_VIDEO_OPENGL |
| 0 | 1607 lock_count--; |
| 1608 if (lock_count==-1) | |
| 1609 { | |
| 1610 SDL_VideoDevice *this = current_video; | |
| 1611 | |
| 1612 this->glPushAttrib( GL_ALL_ATTRIB_BITS ); /* TODO: narrow range of what is saved */ | |
|
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1613 #ifdef GL_CLIENT_PIXEL_STORE_BIT |
| 0 | 1614 this->glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT ); |
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1615 #endif |
| 0 | 1616 |
| 1617 this->glEnable(GL_TEXTURE_2D); | |
| 1618 this->glEnable(GL_BLEND); | |
| 1619 this->glDisable(GL_FOG); | |
| 1620 this->glDisable(GL_ALPHA_TEST); | |
| 1621 this->glDisable(GL_DEPTH_TEST); | |
| 1622 this->glDisable(GL_SCISSOR_TEST); | |
| 1623 this->glDisable(GL_STENCIL_TEST); | |
| 1624 this->glDisable(GL_CULL_FACE); | |
| 1625 | |
| 1626 this->glBindTexture( GL_TEXTURE_2D, this->texture ); | |
| 1627 this->glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); | |
| 1628 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); | |
| 1629 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); | |
| 1630 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); | |
| 1631 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT ); | |
| 1632 | |
| 1633 this->glPixelStorei( GL_UNPACK_ROW_LENGTH, this->screen->pitch / this->screen->format->BytesPerPixel ); | |
| 1634 this->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
| 1635 (this->glColor4f)(1.0, 1.0, 1.0, 1.0); /* Solaris workaround */ | |
| 1636 | |
| 1637 this->glViewport(0, 0, this->screen->w, this->screen->h); | |
| 1638 this->glMatrixMode(GL_PROJECTION); | |
| 1639 this->glPushMatrix(); | |
| 1640 this->glLoadIdentity(); | |
| 1641 | |
| 1642 this->glOrtho(0.0, (GLdouble) this->screen->w, (GLdouble) this->screen->h, 0.0, 0.0, 1.0); | |
| 1643 | |
| 1644 this->glMatrixMode(GL_MODELVIEW); | |
| 1645 this->glPushMatrix(); | |
| 1646 this->glLoadIdentity(); | |
| 1647 } | |
| 1648 #endif | |
| 1649 } | |
| 1650 | |
| 1651 /* Unlock == restore saved state */ | |
| 1652 void SDL_GL_Unlock() | |
| 1653 { | |
|
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1654 #if SDL_VIDEO_OPENGL |
| 0 | 1655 lock_count++; |
| 1656 if (lock_count==0) | |
| 1657 { | |
| 1658 SDL_VideoDevice *this = current_video; | |
| 1659 | |
| 1660 this->glPopMatrix(); | |
| 1661 this->glMatrixMode(GL_PROJECTION); | |
| 1662 this->glPopMatrix(); | |
| 1663 | |
| 1664 this->glPopClientAttrib(); | |
| 1665 this->glPopAttrib(); | |
| 1666 } | |
| 1667 #endif | |
| 1668 } | |
| 1669 | |
| 1670 /* | |
| 1671 * Sets/Gets the title and icon text of the display window, if any. | |
| 1672 */ | |
| 1673 void SDL_WM_SetCaption (const char *title, const char *icon) | |
| 1674 { | |
| 1675 SDL_VideoDevice *video = current_video; | |
| 1676 SDL_VideoDevice *this = current_video; | |
| 1677 | |
|
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1678 if ( video ) { |
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1679 if ( title ) { |
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1680 if ( video->wm_title ) { |
|
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1681 SDL_free(video->wm_title); |
|
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1682 } |
|
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1683 video->wm_title = SDL_strdup(title); |
| 0 | 1684 } |
|
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1685 if ( icon ) { |
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1686 if ( video->wm_icon ) { |
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1687 SDL_free(video->wm_icon); |
|
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1688 } |
|
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1689 video->wm_icon = SDL_strdup(icon); |
| 0 | 1690 } |
|
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1691 if ( (title || icon) && (video->SetCaption != NULL) ) { |
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1692 video->SetCaption(this, video->wm_title,video->wm_icon); |
| 0 | 1693 } |
| 1694 } | |
| 1695 } | |
| 1696 void SDL_WM_GetCaption (char **title, char **icon) | |
| 1697 { | |
|
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1698 SDL_VideoDevice *video = current_video; |
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1699 |
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1700 if ( video ) { |
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1701 if ( title ) { |
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1702 *title = video->wm_title; |
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1703 } |
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1704 if ( icon ) { |
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1705 *icon = video->wm_icon; |
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1706 } |
| 0 | 1707 } |
| 1708 } | |
| 1709 | |
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1710 /* Utility function used by SDL_WM_SetIcon(); |
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1711 * flags & 1 for color key, flags & 2 for alpha channel. */ |
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1712 static void CreateMaskFromColorKeyOrAlpha(SDL_Surface *icon, Uint8 *mask, int flags) |
| 0 | 1713 { |
| 1714 int x, y; | |
| 1715 Uint32 colorkey; | |
| 1716 #define SET_MASKBIT(icon, x, y, mask) \ | |
| 1717 mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8))) | |
| 1718 | |
| 1719 colorkey = icon->format->colorkey; | |
| 1720 switch (icon->format->BytesPerPixel) { | |
| 1721 case 1: { Uint8 *pixels; | |
| 1722 for ( y=0; y<icon->h; ++y ) { | |
| 1723 pixels = (Uint8 *)icon->pixels + y*icon->pitch; | |
| 1724 for ( x=0; x<icon->w; ++x ) { | |
| 1725 if ( *pixels++ == colorkey ) { | |
| 1726 SET_MASKBIT(icon, x, y, mask); | |
| 1727 } | |
| 1728 } | |
| 1729 } | |
| 1730 } | |
| 1731 break; | |
| 1732 | |
| 1733 case 2: { Uint16 *pixels; | |
| 1734 for ( y=0; y<icon->h; ++y ) { | |
| 1735 pixels = (Uint16 *)icon->pixels + | |
| 1736 y*icon->pitch/2; | |
| 1737 for ( x=0; x<icon->w; ++x ) { | |
|
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1738 if ( (flags & 1) && *pixels == colorkey ) { |
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1739 SET_MASKBIT(icon, x, y, mask); |
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1740 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1741 SET_MASKBIT(icon, x, y, mask); |
| 1742 } | |
|
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1743 pixels++; |
| 0 | 1744 } |
| 1745 } | |
| 1746 } | |
| 1747 break; | |
| 1748 | |
| 1749 case 4: { Uint32 *pixels; | |
| 1750 for ( y=0; y<icon->h; ++y ) { | |
| 1751 pixels = (Uint32 *)icon->pixels + | |
| 1752 y*icon->pitch/4; | |
| 1753 for ( x=0; x<icon->w; ++x ) { | |
|
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1754 if ( (flags & 1) && *pixels == colorkey ) { |
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1755 SET_MASKBIT(icon, x, y, mask); |
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1756 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1757 SET_MASKBIT(icon, x, y, mask); |
| 1758 } | |
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1759 pixels++; |
| 0 | 1760 } |
| 1761 } | |
| 1762 } | |
| 1763 break; | |
| 1764 } | |
| 1765 } | |
| 1766 | |
| 1767 /* | |
| 1768 * Sets the window manager icon for the display window. | |
| 1769 */ | |
| 1770 void SDL_WM_SetIcon (SDL_Surface *icon, Uint8 *mask) | |
| 1771 { | |
| 1772 SDL_VideoDevice *video = current_video; | |
| 1773 SDL_VideoDevice *this = current_video; | |
| 1774 | |
| 1775 if ( icon && video->SetIcon ) { | |
| 1776 /* Generate a mask if necessary, and create the icon! */ | |
| 1777 if ( mask == NULL ) { | |
| 1778 int mask_len = icon->h*(icon->w+7)/8; | |
|
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1779 int flags = 0; |
|
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1780 mask = (Uint8 *)SDL_malloc(mask_len); |
| 0 | 1781 if ( mask == NULL ) { |
| 1782 return; | |
| 1783 } | |
|
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1784 SDL_memset(mask, ~0, mask_len); |
|
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1785 if ( icon->flags & SDL_SRCCOLORKEY ) flags |= 1; |
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1786 if ( icon->flags & SDL_SRCALPHA ) flags |= 2; |
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1787 if( flags ) { |
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1788 CreateMaskFromColorKeyOrAlpha(icon, mask, flags); |
| 0 | 1789 } |
| 1790 video->SetIcon(video, icon, mask); | |
|
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1791 SDL_free(mask); |
| 0 | 1792 } else { |
| 1793 video->SetIcon(this, icon, mask); | |
| 1794 } | |
| 1795 } | |
| 1796 } | |
| 1797 | |
| 1798 /* | |
| 1799 * Grab or ungrab the keyboard and mouse input. | |
| 1800 * This function returns the final grab mode after calling the | |
| 1801 * driver dependent function. | |
| 1802 */ | |
| 1803 static SDL_GrabMode SDL_WM_GrabInputRaw(SDL_GrabMode mode) | |
| 1804 { | |
| 1805 SDL_VideoDevice *video = current_video; | |
| 1806 SDL_VideoDevice *this = current_video; | |
| 1807 | |
| 1808 /* Only do something if we have support for grabs */ | |
| 1809 if ( video->GrabInput == NULL ) { | |
| 1810 return(video->input_grab); | |
| 1811 } | |
| 1812 | |
| 1813 /* If the final grab mode if off, only then do we actually grab */ | |
| 1814 #ifdef DEBUG_GRAB | |
| 1815 printf("SDL_WM_GrabInputRaw(%d) ... ", mode); | |
| 1816 #endif | |
| 1817 if ( mode == SDL_GRAB_OFF ) { | |
| 1818 if ( video->input_grab != SDL_GRAB_OFF ) { | |
| 1819 mode = video->GrabInput(this, mode); | |
| 1820 } | |
| 1821 } else { | |
| 1822 if ( video->input_grab == SDL_GRAB_OFF ) { | |
| 1823 mode = video->GrabInput(this, mode); | |
| 1824 } | |
| 1825 } | |
| 1826 if ( mode != video->input_grab ) { | |
| 1827 video->input_grab = mode; | |
| 1828 if ( video->CheckMouseMode ) { | |
| 1829 video->CheckMouseMode(this); | |
| 1830 } | |
| 1831 } | |
| 1832 #ifdef DEBUG_GRAB | |
| 1833 printf("Final mode %d\n", video->input_grab); | |
| 1834 #endif | |
| 1835 | |
| 1836 /* Return the final grab state */ | |
| 1837 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1838 mode -= SDL_GRAB_FULLSCREEN; | |
| 1839 } | |
| 1840 return(mode); | |
| 1841 } | |
| 1842 SDL_GrabMode SDL_WM_GrabInput(SDL_GrabMode mode) | |
| 1843 { | |
| 1844 SDL_VideoDevice *video = current_video; | |
| 1845 | |
|
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1846 /* If the video isn't initialized yet, we can't do anything */ |
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1847 if ( ! video ) { |
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1848 return SDL_GRAB_OFF; |
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parents:
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1849 } |
| 0 | 1850 |
| 1851 /* Return the current mode on query */ | |
| 1852 if ( mode == SDL_GRAB_QUERY ) { | |
| 1853 mode = video->input_grab; | |
| 1854 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1855 mode -= SDL_GRAB_FULLSCREEN; | |
| 1856 } | |
| 1857 return(mode); | |
| 1858 } | |
| 1859 | |
| 1860 #ifdef DEBUG_GRAB | |
| 1861 printf("SDL_WM_GrabInput(%d) ... ", mode); | |
| 1862 #endif | |
| 1863 /* If the video surface is fullscreen, we always grab */ | |
| 1864 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1865 mode -= SDL_GRAB_FULLSCREEN; | |
| 1866 } | |
| 1867 if ( SDL_VideoSurface && (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { | |
| 1868 mode += SDL_GRAB_FULLSCREEN; | |
| 1869 } | |
| 1870 return(SDL_WM_GrabInputRaw(mode)); | |
| 1871 } | |
| 1872 static SDL_GrabMode SDL_WM_GrabInputOff(void) | |
| 1873 { | |
| 1874 SDL_GrabMode mode; | |
| 1875 | |
| 1876 /* First query the current grab state */ | |
| 1877 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 1878 | |
| 1879 /* Now explicitly turn off input grab */ | |
| 1880 SDL_WM_GrabInputRaw(SDL_GRAB_OFF); | |
| 1881 | |
| 1882 /* Return the old state */ | |
| 1883 return(mode); | |
| 1884 } | |
| 1885 | |
| 1886 /* | |
| 1887 * Iconify the window in window managed environments. | |
| 1888 * A successful iconification will result in an SDL_APPACTIVE loss event. | |
| 1889 */ | |
| 1890 int SDL_WM_IconifyWindow(void) | |
| 1891 { | |
| 1892 SDL_VideoDevice *video = current_video; | |
| 1893 SDL_VideoDevice *this = current_video; | |
| 1894 int retval; | |
| 1895 | |
| 1896 retval = 0; | |
| 1897 if ( video->IconifyWindow ) { | |
| 1898 retval = video->IconifyWindow(this); | |
| 1899 } | |
| 1900 return(retval); | |
| 1901 } | |
| 1902 | |
| 1903 /* | |
| 1904 * Toggle fullscreen mode | |
| 1905 */ | |
| 1906 int SDL_WM_ToggleFullScreen(SDL_Surface *surface) | |
| 1907 { | |
| 1908 SDL_VideoDevice *video = current_video; | |
| 1909 SDL_VideoDevice *this = current_video; | |
| 1910 int toggled; | |
| 1911 | |
| 1912 toggled = 0; | |
| 1913 if ( SDL_PublicSurface && (surface == SDL_PublicSurface) && | |
| 1914 video->ToggleFullScreen ) { | |
| 1915 if ( surface->flags & SDL_FULLSCREEN ) { | |
| 1916 toggled = video->ToggleFullScreen(this, 0); | |
| 1917 if ( toggled ) { | |
| 1918 SDL_VideoSurface->flags &= ~SDL_FULLSCREEN; | |
| 1919 SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; | |
| 1920 } | |
| 1921 } else { | |
| 1922 toggled = video->ToggleFullScreen(this, 1); | |
| 1923 if ( toggled ) { | |
| 1924 SDL_VideoSurface->flags |= SDL_FULLSCREEN; | |
| 1925 SDL_PublicSurface->flags |= SDL_FULLSCREEN; | |
| 1926 } | |
| 1927 } | |
| 1928 /* Double-check the grab state inside SDL_WM_GrabInput() */ | |
| 1929 if ( toggled ) { | |
| 1930 SDL_WM_GrabInput(video->input_grab); | |
| 1931 } | |
| 1932 } | |
| 1933 return(toggled); | |
| 1934 } | |
| 1935 | |
| 1936 /* | |
| 1937 * Get some platform dependent window manager information | |
| 1938 */ | |
| 1939 int SDL_GetWMInfo (SDL_SysWMinfo *info) | |
| 1940 { | |
| 1941 SDL_VideoDevice *video = current_video; | |
| 1942 SDL_VideoDevice *this = current_video; | |
| 1943 | |
| 1944 if ( video && video->GetWMInfo ) { | |
| 1945 return(video->GetWMInfo(this, info)); | |
| 1946 } else { | |
| 1947 return(0); | |
| 1948 } | |
| 1949 } |