Mercurial > sdl-ios-xcode
annotate src/video/SDL_video.c @ 1330:450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
using Visual C++ 2005
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 06 Feb 2006 08:28:51 +0000 |
| parents | c9b51268668f |
| children | 3692456e7b0f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
|
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15 You should have received a copy of the GNU Lesser General Public |
|
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16 License along with this library; if not, write to the Free Software |
|
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 /* The high-level video driver subsystem */ | |
| 24 | |
| 25 #include "SDL.h" | |
| 26 #include "SDL_error.h" | |
| 27 #include "SDL_video.h" | |
| 28 #include "SDL_events.h" | |
| 29 #include "SDL_mutex.h" | |
|
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30 #include "SDL_stdlib.h" |
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31 #include "SDL_string.h" |
| 0 | 32 #include "SDL_sysvideo.h" |
| 33 #include "SDL_sysevents.h" | |
| 34 #include "SDL_blit.h" | |
| 35 #include "SDL_pixels_c.h" | |
| 36 #include "SDL_events_c.h" | |
| 37 #include "SDL_cursor_c.h" | |
| 38 | |
| 39 /* Available video drivers */ | |
| 40 static VideoBootStrap *bootstrap[] = { | |
|
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41 #ifdef ENABLE_QUARTZ |
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42 &QZ_bootstrap, |
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43 #endif |
| 0 | 44 #ifdef ENABLE_X11 |
| 45 &X11_bootstrap, | |
| 46 #endif | |
| 47 #ifdef ENABLE_DGA | |
| 48 &DGA_bootstrap, | |
| 49 #endif | |
|
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50 #ifdef ENABLE_NANOX |
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51 &NX_bootstrap, |
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52 #endif |
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53 #ifdef ENABLE_IPOD |
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54 &iPod_bootstrap, |
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55 #endif |
| 567 | 56 #ifdef ENABLE_QTOPIA |
| 57 &Qtopia_bootstrap, | |
| 58 #endif | |
| 1187 | 59 #ifdef ENABLE_WSCONS |
| 60 &WSCONS_bootstrap, | |
| 61 #endif | |
| 0 | 62 #ifdef ENABLE_FBCON |
| 63 &FBCON_bootstrap, | |
| 64 #endif | |
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65 #ifdef ENABLE_DIRECTFB |
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66 &DirectFB_bootstrap, |
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67 #endif |
| 0 | 68 #ifdef ENABLE_PS2GS |
| 69 &PS2GS_bootstrap, | |
| 70 #endif | |
| 71 #ifdef ENABLE_GGI | |
| 72 &GGI_bootstrap, | |
| 73 #endif | |
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74 #ifdef ENABLE_VGL |
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75 &VGL_bootstrap, |
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76 #endif |
| 0 | 77 #ifdef ENABLE_SVGALIB |
| 78 &SVGALIB_bootstrap, | |
| 79 #endif | |
| 80 #ifdef ENABLE_AALIB | |
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81 &AALIB_bootstrap, |
| 0 | 82 #endif |
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83 #ifdef ENABLE_GAPI |
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84 &GAPI_bootstrap, |
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85 #endif |
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86 #ifdef ENABLE_WINDIB |
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87 &WINDIB_bootstrap, |
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88 #endif |
| 0 | 89 #ifdef ENABLE_DIRECTX |
| 90 &DIRECTX_bootstrap, | |
| 91 #endif | |
| 92 #ifdef ENABLE_BWINDOW | |
| 93 &BWINDOW_bootstrap, | |
| 94 #endif | |
| 95 #ifdef ENABLE_TOOLBOX | |
| 96 &TOOLBOX_bootstrap, | |
| 97 #endif | |
| 98 #ifdef ENABLE_DRAWSPROCKET | |
| 99 &DSp_bootstrap, | |
| 100 #endif | |
| 101 #ifdef ENABLE_CYBERGRAPHICS | |
| 102 &CGX_bootstrap, | |
| 103 #endif | |
|
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104 #ifdef ENABLE_PHOTON |
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105 &ph_bootstrap, |
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106 #endif |
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107 #ifdef ENABLE_EPOC |
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108 &EPOC_bootstrap, |
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109 #endif |
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110 #ifdef ENABLE_XBIOS |
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111 &XBIOS_bootstrap, |
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112 #endif |
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113 #ifdef ENABLE_GEM |
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114 &GEM_bootstrap, |
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115 #endif |
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116 #ifdef ENABLE_PICOGUI |
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117 &PG_bootstrap, |
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118 #endif |
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119 #ifdef ENABLE_DC |
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120 &DC_bootstrap, |
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121 #endif |
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122 #ifdef ENABLE_RISCOS |
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123 &RISCOS_bootstrap, |
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124 #endif |
| 1190 | 125 #ifdef __OS2__ |
| 126 &OS2FSLib_bootstrap, | |
| 127 #endif | |
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128 #ifdef ENABLE_DUMMYVIDEO |
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129 &DUMMY_bootstrap, |
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130 #endif |
| 0 | 131 NULL |
| 132 }; | |
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133 |
| 0 | 134 SDL_VideoDevice *current_video = NULL; |
| 135 | |
| 136 /* Various local functions */ | |
| 137 int SDL_VideoInit(const char *driver_name, Uint32 flags); | |
| 138 void SDL_VideoQuit(void); | |
| 139 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect* rects); | |
| 140 | |
| 141 static SDL_GrabMode SDL_WM_GrabInputOff(void); | |
| 142 #ifdef HAVE_OPENGL | |
| 143 static int lock_count = 0; | |
| 144 #endif | |
| 145 | |
| 146 | |
| 147 /* | |
| 148 * Initialize the video and event subsystems -- determine native pixel format | |
| 149 */ | |
| 150 int SDL_VideoInit (const char *driver_name, Uint32 flags) | |
| 151 { | |
| 152 SDL_VideoDevice *video; | |
| 153 int index; | |
| 154 int i; | |
| 155 SDL_PixelFormat vformat; | |
| 156 Uint32 video_flags; | |
| 157 | |
| 158 /* Toggle the event thread flags, based on OS requirements */ | |
| 159 #if defined(MUST_THREAD_EVENTS) | |
| 160 flags |= SDL_INIT_EVENTTHREAD; | |
| 161 #elif defined(CANT_THREAD_EVENTS) | |
| 162 if ( (flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD ) { | |
| 163 SDL_SetError("OS doesn't support threaded events"); | |
| 164 return(-1); | |
| 165 } | |
| 166 #endif | |
| 167 | |
| 168 /* Check to make sure we don't overwrite 'current_video' */ | |
| 169 if ( current_video != NULL ) { | |
| 170 SDL_VideoQuit(); | |
| 171 } | |
| 172 | |
| 173 /* Select the proper video driver */ | |
| 174 index = 0; | |
| 175 video = NULL; | |
| 176 if ( driver_name != NULL ) { | |
| 177 #if 0 /* This will be replaced with a better driver selection API */ | |
| 178 if ( strrchr(driver_name, ':') != NULL ) { | |
| 179 index = atoi(strrchr(driver_name, ':')+1); | |
| 180 } | |
| 181 #endif | |
| 182 for ( i=0; bootstrap[i]; ++i ) { | |
| 183 if ( strncmp(bootstrap[i]->name, driver_name, | |
| 184 strlen(bootstrap[i]->name)) == 0 ) { | |
| 185 if ( bootstrap[i]->available() ) { | |
| 186 video = bootstrap[i]->create(index); | |
| 187 break; | |
| 188 } | |
| 189 } | |
| 190 } | |
| 191 } else { | |
| 192 for ( i=0; bootstrap[i]; ++i ) { | |
| 193 if ( bootstrap[i]->available() ) { | |
| 194 video = bootstrap[i]->create(index); | |
| 195 if ( video != NULL ) { | |
| 196 break; | |
| 197 } | |
| 198 } | |
| 199 } | |
| 200 } | |
| 201 if ( video == NULL ) { | |
| 202 SDL_SetError("No available video device"); | |
| 203 return(-1); | |
| 204 } | |
| 205 current_video = video; | |
| 206 current_video->name = bootstrap[i]->name; | |
| 207 | |
| 208 /* Do some basic variable initialization */ | |
| 209 video->screen = NULL; | |
| 210 video->shadow = NULL; | |
| 211 video->visible = NULL; | |
| 212 video->physpal = NULL; | |
| 213 video->gammacols = NULL; | |
| 214 video->gamma = NULL; | |
| 215 video->wm_title = NULL; | |
| 216 video->wm_icon = NULL; | |
| 217 video->offset_x = 0; | |
| 218 video->offset_y = 0; | |
| 219 memset(&video->info, 0, (sizeof video->info)); | |
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220 |
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221 video->displayformatalphapixel = NULL; |
| 0 | 222 |
| 223 /* Set some very sane GL defaults */ | |
| 224 video->gl_config.driver_loaded = 0; | |
| 225 video->gl_config.dll_handle = NULL; | |
| 226 video->gl_config.red_size = 5; | |
| 227 #if 1 /* This seems to work on more video cards, as a default */ | |
| 228 video->gl_config.green_size = 5; | |
| 229 #else | |
| 230 video->gl_config.green_size = 6; | |
| 231 #endif | |
| 232 video->gl_config.blue_size = 5; | |
| 233 video->gl_config.alpha_size = 0; | |
| 234 video->gl_config.buffer_size = 0; | |
| 235 video->gl_config.depth_size = 16; | |
| 236 video->gl_config.stencil_size = 0; | |
| 237 video->gl_config.double_buffer = 1; | |
| 238 video->gl_config.accum_red_size = 0; | |
| 239 video->gl_config.accum_green_size = 0; | |
| 240 video->gl_config.accum_blue_size = 0; | |
| 241 video->gl_config.accum_alpha_size = 0; | |
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242 video->gl_config.stereo = 0; |
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243 video->gl_config.multisamplebuffers = 0; |
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244 video->gl_config.multisamplesamples = 0; |
| 0 | 245 |
| 246 /* Initialize the video subsystem */ | |
| 247 memset(&vformat, 0, sizeof(vformat)); | |
| 248 if ( video->VideoInit(video, &vformat) < 0 ) { | |
| 249 SDL_VideoQuit(); | |
| 250 return(-1); | |
| 251 } | |
| 252 | |
| 253 /* Create a zero sized video surface of the appropriate format */ | |
| 254 video_flags = SDL_SWSURFACE; | |
| 255 SDL_VideoSurface = SDL_CreateRGBSurface(video_flags, 0, 0, | |
| 256 vformat.BitsPerPixel, | |
| 257 vformat.Rmask, vformat.Gmask, vformat.Bmask, 0); | |
| 258 if ( SDL_VideoSurface == NULL ) { | |
| 259 SDL_VideoQuit(); | |
| 260 return(-1); | |
| 261 } | |
| 262 SDL_PublicSurface = NULL; /* Until SDL_SetVideoMode() */ | |
| 263 | |
| 264 #if 0 /* Don't change the current palette - may be used by other programs. | |
| 265 * The application can't do anything with the display surface until | |
| 266 * a video mode has been set anyway. :) | |
| 267 */ | |
| 268 /* If we have a palettized surface, create a default palette */ | |
| 269 if ( SDL_VideoSurface->format->palette ) { | |
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270 SDL_PixelFormat *vf = SDL_VideoSurface->format; |
| 0 | 271 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 272 video->SetColors(video, | |
| 273 0, vf->palette->ncolors, vf->palette->colors); | |
| 274 } | |
| 275 #endif | |
| 276 video->info.vfmt = SDL_VideoSurface->format; | |
| 277 | |
| 278 /* Start the event loop */ | |
| 279 if ( SDL_StartEventLoop(flags) < 0 ) { | |
| 280 SDL_VideoQuit(); | |
| 281 return(-1); | |
| 282 } | |
| 283 SDL_CursorInit(flags & SDL_INIT_EVENTTHREAD); | |
| 284 | |
| 285 /* We're ready to go! */ | |
| 286 return(0); | |
| 287 } | |
| 288 | |
| 289 char *SDL_VideoDriverName(char *namebuf, int maxlen) | |
| 290 { | |
| 291 if ( current_video != NULL ) { | |
| 292 strncpy(namebuf, current_video->name, maxlen-1); | |
| 293 namebuf[maxlen-1] = '\0'; | |
| 294 return(namebuf); | |
| 295 } | |
| 296 return(NULL); | |
| 297 } | |
| 298 | |
| 299 /* | |
| 300 * Get the current display surface | |
| 301 */ | |
| 302 SDL_Surface *SDL_GetVideoSurface(void) | |
| 303 { | |
| 304 SDL_Surface *visible; | |
| 305 | |
| 306 visible = NULL; | |
| 307 if ( current_video ) { | |
| 308 visible = current_video->visible; | |
| 309 } | |
| 310 return(visible); | |
| 311 } | |
| 312 | |
| 313 /* | |
| 314 * Get the current information about the video hardware | |
| 315 */ | |
| 316 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
| 317 { | |
| 318 const SDL_VideoInfo *info; | |
| 319 | |
| 320 info = NULL; | |
| 321 if ( current_video ) { | |
| 322 info = ¤t_video->info; | |
| 323 } | |
| 324 return(info); | |
| 325 } | |
| 326 | |
| 327 /* | |
| 328 * Return a pointer to an array of available screen dimensions for the | |
| 329 * given format, sorted largest to smallest. Returns NULL if there are | |
| 330 * no dimensions available for a particular format, or (SDL_Rect **)-1 | |
| 331 * if any dimension is okay for the given format. If 'format' is NULL, | |
| 332 * the mode list will be for the format given by SDL_GetVideoInfo()->vfmt | |
| 333 */ | |
| 334 SDL_Rect ** SDL_ListModes (SDL_PixelFormat *format, Uint32 flags) | |
| 335 { | |
| 336 SDL_VideoDevice *video = current_video; | |
| 337 SDL_VideoDevice *this = current_video; | |
| 338 SDL_Rect **modes; | |
| 339 | |
| 340 modes = NULL; | |
| 341 if ( SDL_VideoSurface ) { | |
| 342 if ( format == NULL ) { | |
| 343 format = SDL_VideoSurface->format; | |
| 344 } | |
| 345 modes = video->ListModes(this, format, flags); | |
| 346 } | |
| 347 return(modes); | |
| 348 } | |
| 349 | |
| 350 /* | |
| 351 * Check to see if a particular video mode is supported. | |
| 352 * It returns 0 if the requested mode is not supported under any bit depth, | |
| 353 * or returns the bits-per-pixel of the closest available mode with the | |
| 354 * given width and height. If this bits-per-pixel is different from the | |
| 355 * one used when setting the video mode, SDL_SetVideoMode() will succeed, | |
| 356 * but will emulate the requested bits-per-pixel with a shadow surface. | |
| 357 */ | |
| 358 static Uint8 SDL_closest_depths[4][8] = { | |
| 359 /* 8 bit closest depth ordering */ | |
| 360 { 0, 8, 16, 15, 32, 24, 0, 0 }, | |
| 361 /* 15,16 bit closest depth ordering */ | |
| 362 { 0, 16, 15, 32, 24, 8, 0, 0 }, | |
| 363 /* 24 bit closest depth ordering */ | |
| 364 { 0, 24, 32, 16, 15, 8, 0, 0 }, | |
| 365 /* 32 bit closest depth ordering */ | |
| 366 { 0, 32, 16, 15, 24, 8, 0, 0 } | |
| 367 }; | |
| 368 | |
|
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369 |
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370 #ifdef macintosh /* MPW optimization bug? */ |
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371 #define NEGATIVE_ONE 0xFFFFFFFF |
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372 #else |
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373 #define NEGATIVE_ONE -1 |
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374 #endif |
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375 |
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376 int SDL_VideoModeOK (int width, int height, int bpp, Uint32 flags) |
| 0 | 377 { |
| 378 int table, b, i; | |
| 379 int supported; | |
| 380 SDL_PixelFormat format; | |
| 381 SDL_Rect **sizes; | |
| 382 | |
| 383 /* Currently 1 and 4 bpp are not supported */ | |
| 384 if ( bpp < 8 || bpp > 32 ) { | |
| 385 return(0); | |
| 386 } | |
|
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387 if ( (width <= 0) || (height <= 0) ) { |
| 0 | 388 return(0); |
| 389 } | |
| 390 | |
| 391 /* Search through the list valid of modes */ | |
| 392 memset(&format, 0, sizeof(format)); | |
| 393 supported = 0; | |
| 394 table = ((bpp+7)/8)-1; | |
| 395 SDL_closest_depths[table][0] = bpp; | |
| 396 SDL_closest_depths[table][7] = 0; | |
| 397 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 398 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 399 sizes = SDL_ListModes(&format, flags); | |
| 400 if ( sizes == (SDL_Rect **)0 ) { | |
| 401 /* No sizes supported at this bit-depth */ | |
| 402 continue; | |
| 403 } else | |
|
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404 if (sizes == (SDL_Rect **)NEGATIVE_ONE) { |
| 0 | 405 /* Any size supported at this bit-depth */ |
| 406 supported = 1; | |
| 407 continue; | |
|
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408 } else if (current_video->handles_any_size) { |
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409 /* Driver can center a smaller surface to simulate fullscreen */ |
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410 for ( i=0; sizes[i]; ++i ) { |
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411 if ((sizes[i]->w >= width) && (sizes[i]->h >= height)) { |
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412 supported = 1; /* this mode can fit the centered window. */ |
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413 break; |
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414 } |
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415 } |
| 0 | 416 } else |
| 417 for ( i=0; sizes[i]; ++i ) { | |
| 418 if ((sizes[i]->w == width) && (sizes[i]->h == height)) { | |
| 419 supported = 1; | |
| 420 break; | |
| 421 } | |
| 422 } | |
| 423 } | |
| 424 if ( supported ) { | |
| 425 --b; | |
| 426 return(SDL_closest_depths[table][b]); | |
| 427 } else { | |
| 428 return(0); | |
| 429 } | |
| 430 } | |
| 431 | |
| 432 /* | |
| 433 * Get the closest non-emulated video mode to the one requested | |
| 434 */ | |
| 435 static int SDL_GetVideoMode (int *w, int *h, int *BitsPerPixel, Uint32 flags) | |
| 436 { | |
| 437 int table, b, i; | |
| 438 int supported; | |
| 439 int native_bpp; | |
| 440 SDL_PixelFormat format; | |
| 441 SDL_Rect **sizes; | |
| 442 | |
|
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443 /* Check parameters */ |
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444 if ( *BitsPerPixel < 8 || *BitsPerPixel > 32 ) { |
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445 SDL_SetError("Invalid bits per pixel (range is {8...32})"); |
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446 return(0); |
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447 } |
|
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448 if ((*w <= 0) || (*h <= 0)) { |
|
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449 SDL_SetError("Invalid width or height"); |
|
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450 return(0); |
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451 } |
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452 |
| 0 | 453 /* Try the original video mode, get the closest depth */ |
| 454 native_bpp = SDL_VideoModeOK(*w, *h, *BitsPerPixel, flags); | |
| 455 if ( native_bpp == *BitsPerPixel ) { | |
| 456 return(1); | |
| 457 } | |
| 458 if ( native_bpp > 0 ) { | |
| 459 *BitsPerPixel = native_bpp; | |
| 460 return(1); | |
| 461 } | |
| 462 | |
| 463 /* No exact size match at any depth, look for closest match */ | |
| 464 memset(&format, 0, sizeof(format)); | |
| 465 supported = 0; | |
| 466 table = ((*BitsPerPixel+7)/8)-1; | |
| 467 SDL_closest_depths[table][0] = *BitsPerPixel; | |
| 468 SDL_closest_depths[table][7] = SDL_VideoSurface->format->BitsPerPixel; | |
| 469 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
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470 int best; |
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471 |
| 0 | 472 format.BitsPerPixel = SDL_closest_depths[table][b]; |
| 473 sizes = SDL_ListModes(&format, flags); | |
| 474 if ( sizes == (SDL_Rect **)0 ) { | |
| 475 /* No sizes supported at this bit-depth */ | |
| 476 continue; | |
| 477 } | |
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478 best=0; |
| 0 | 479 for ( i=0; sizes[i]; ++i ) { |
|
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480 /* Mode with both dimensions bigger or equal than asked ? */ |
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481 if ((sizes[i]->w >= *w) && (sizes[i]->h >= *h)) { |
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482 /* Mode with any dimension smaller or equal than current best ? */ |
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483 if ((sizes[i]->w <= sizes[best]->w) || (sizes[i]->h <= sizes[best]->h)) { |
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484 /* Now choose the mode that has less pixels */ |
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485 if ((sizes[i]->w * sizes[i]->h) <= (sizes[best]->w * sizes[best]->h)) { |
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486 best=i; |
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487 supported = 1; |
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488 } |
| 0 | 489 } |
| 490 } | |
| 491 } | |
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492 if (supported) { |
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493 *w=sizes[best]->w; |
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494 *h=sizes[best]->h; |
| 0 | 495 *BitsPerPixel = SDL_closest_depths[table][b]; |
| 496 } | |
| 497 } | |
| 498 if ( ! supported ) { | |
| 499 SDL_SetError("No video mode large enough for %dx%d", *w, *h); | |
| 500 } | |
| 501 return(supported); | |
| 502 } | |
| 503 | |
| 504 /* This should probably go somewhere else -- like SDL_surface.c */ | |
| 505 static void SDL_ClearSurface(SDL_Surface *surface) | |
| 506 { | |
| 507 Uint32 black; | |
| 508 | |
| 509 black = SDL_MapRGB(surface->format, 0, 0, 0); | |
| 510 SDL_FillRect(surface, NULL, black); | |
| 511 if ((surface->flags&SDL_HWSURFACE) && (surface->flags&SDL_DOUBLEBUF)) { | |
| 512 SDL_Flip(surface); | |
| 513 SDL_FillRect(surface, NULL, black); | |
| 514 } | |
| 515 SDL_Flip(surface); | |
| 516 } | |
| 517 | |
| 518 /* | |
| 519 * Create a shadow surface suitable for fooling the app. :-) | |
| 520 */ | |
| 521 static void SDL_CreateShadowSurface(int depth) | |
| 522 { | |
| 523 Uint32 Rmask, Gmask, Bmask; | |
| 524 | |
| 525 /* Allocate the shadow surface */ | |
| 526 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 527 Rmask = (SDL_VideoSurface->format)->Rmask; | |
| 528 Gmask = (SDL_VideoSurface->format)->Gmask; | |
| 529 Bmask = (SDL_VideoSurface->format)->Bmask; | |
| 530 } else { | |
| 531 Rmask = Gmask = Bmask = 0; | |
| 532 } | |
| 533 SDL_ShadowSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
| 534 SDL_VideoSurface->w, SDL_VideoSurface->h, | |
| 535 depth, Rmask, Gmask, Bmask, 0); | |
| 536 if ( SDL_ShadowSurface == NULL ) { | |
| 537 return; | |
| 538 } | |
| 539 | |
| 540 /* 8-bit shadow surfaces report that they have exclusive palette */ | |
| 541 if ( SDL_ShadowSurface->format->palette ) { | |
| 542 SDL_ShadowSurface->flags |= SDL_HWPALETTE; | |
| 543 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 544 memcpy(SDL_ShadowSurface->format->palette->colors, | |
| 545 SDL_VideoSurface->format->palette->colors, | |
| 546 SDL_VideoSurface->format->palette->ncolors* | |
| 547 sizeof(SDL_Color)); | |
| 548 } else { | |
| 549 SDL_DitherColors( | |
| 550 SDL_ShadowSurface->format->palette->colors, depth); | |
| 551 } | |
| 552 } | |
| 553 | |
| 554 /* If the video surface is resizable, the shadow should say so */ | |
| 555 if ( (SDL_VideoSurface->flags & SDL_RESIZABLE) == SDL_RESIZABLE ) { | |
| 556 SDL_ShadowSurface->flags |= SDL_RESIZABLE; | |
| 557 } | |
| 558 /* If the video surface has no frame, the shadow should say so */ | |
| 559 if ( (SDL_VideoSurface->flags & SDL_NOFRAME) == SDL_NOFRAME ) { | |
| 560 SDL_ShadowSurface->flags |= SDL_NOFRAME; | |
| 561 } | |
| 562 /* If the video surface is fullscreen, the shadow should say so */ | |
| 563 if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 564 SDL_ShadowSurface->flags |= SDL_FULLSCREEN; | |
| 565 } | |
| 566 /* If the video surface is flippable, the shadow should say so */ | |
| 567 if ( (SDL_VideoSurface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 568 SDL_ShadowSurface->flags |= SDL_DOUBLEBUF; | |
| 569 } | |
| 570 return; | |
| 571 } | |
| 572 | |
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573 #ifdef __QNXNTO__ |
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574 #include <sys/neutrino.h> |
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575 #endif /* __QNXNTO__ */ |
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576 |
| 0 | 577 /* |
| 578 * Set the requested video mode, allocating a shadow buffer if necessary. | |
| 579 */ | |
| 580 SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags) | |
| 581 { | |
| 582 SDL_VideoDevice *video, *this; | |
| 583 SDL_Surface *prev_mode, *mode; | |
| 584 int video_w; | |
| 585 int video_h; | |
| 586 int video_bpp; | |
| 587 int is_opengl; | |
| 588 SDL_GrabMode saved_grab; | |
| 589 | |
| 590 /* Start up the video driver, if necessary.. | |
| 591 WARNING: This is the only function protected this way! | |
| 592 */ | |
| 593 if ( ! current_video ) { | |
| 594 if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE) < 0 ) { | |
| 595 return(NULL); | |
| 596 } | |
| 597 } | |
| 598 this = video = current_video; | |
| 599 | |
| 600 /* Default to the current video bpp */ | |
| 601 if ( bpp == 0 ) { | |
| 602 flags |= SDL_ANYFORMAT; | |
| 603 bpp = SDL_VideoSurface->format->BitsPerPixel; | |
| 604 } | |
| 605 | |
| 606 /* Get a good video mode, the closest one possible */ | |
| 607 video_w = width; | |
| 608 video_h = height; | |
| 609 video_bpp = bpp; | |
| 610 if ( ! SDL_GetVideoMode(&video_w, &video_h, &video_bpp, flags) ) { | |
| 611 return(NULL); | |
| 612 } | |
| 613 | |
| 614 /* Check the requested flags */ | |
| 615 /* There's no palette in > 8 bits-per-pixel mode */ | |
| 616 if ( video_bpp > 8 ) { | |
| 617 flags &= ~SDL_HWPALETTE; | |
| 618 } | |
| 619 #if 0 | |
| 620 if ( (flags&SDL_FULLSCREEN) != SDL_FULLSCREEN ) { | |
| 621 /* There's no windowed double-buffering */ | |
| 622 flags &= ~SDL_DOUBLEBUF; | |
| 623 } | |
| 624 #endif | |
| 625 if ( (flags&SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 626 /* Use hardware surfaces when double-buffering */ | |
| 627 flags |= SDL_HWSURFACE; | |
| 628 } | |
| 629 | |
| 630 is_opengl = ( ( flags & SDL_OPENGL ) == SDL_OPENGL ); | |
| 631 if ( is_opengl ) { | |
| 632 /* These flags are for 2D video modes only */ | |
| 633 flags &= ~(SDL_HWSURFACE|SDL_DOUBLEBUF); | |
| 634 } | |
| 635 | |
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636 /* Reset the keyboard here so event callbacks can run */ |
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637 SDL_ResetKeyboard(); |
|
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638 SDL_ResetMouse(); |
| 1296 | 639 SDL_cursorstate &= ~CURSOR_USINGSW; |
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640 |
| 0 | 641 /* Clean up any previous video mode */ |
| 642 if ( SDL_PublicSurface != NULL ) { | |
| 643 SDL_PublicSurface = NULL; | |
| 644 } | |
| 645 if ( SDL_ShadowSurface != NULL ) { | |
| 646 SDL_Surface *ready_to_go; | |
| 647 ready_to_go = SDL_ShadowSurface; | |
| 648 SDL_ShadowSurface = NULL; | |
| 649 SDL_FreeSurface(ready_to_go); | |
| 650 } | |
| 651 if ( video->physpal ) { | |
| 652 free(video->physpal->colors); | |
| 653 free(video->physpal); | |
| 654 video->physpal = NULL; | |
| 655 } | |
| 656 if( video->gammacols) { | |
|
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657 free(video->gammacols); |
| 0 | 658 video->gammacols = NULL; |
| 659 } | |
| 660 | |
| 661 /* Save the previous grab state and turn off grab for mode switch */ | |
| 662 saved_grab = SDL_WM_GrabInputOff(); | |
| 663 | |
| 664 /* Try to set the video mode, along with offset and clipping */ | |
| 665 prev_mode = SDL_VideoSurface; | |
| 666 SDL_LockCursor(); | |
| 667 SDL_VideoSurface = NULL; /* In case it's freed by driver */ | |
| 668 mode = video->SetVideoMode(this, prev_mode,video_w,video_h,video_bpp,flags); | |
| 669 if ( mode ) { /* Prevent resize events from mode change */ | |
| 1190 | 670 /* But not on OS/2 */ |
| 671 #ifndef __OS2__ | |
| 0 | 672 SDL_PrivateResize(mode->w, mode->h); |
| 1190 | 673 #endif |
|
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674 |
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675 /* Sam - If we asked for OpenGL mode, and didn't get it, fail */ |
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676 if ( is_opengl && !(mode->flags & SDL_OPENGL) ) { |
|
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677 mode = NULL; |
|
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|
678 SDL_SetError("OpenGL not available"); |
|
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679 } |
|
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680 } |
| 0 | 681 /* |
| 682 * rcg11292000 | |
| 683 * If you try to set an SDL_OPENGL surface, and fail to find a | |
| 684 * matching visual, then the next call to SDL_SetVideoMode() | |
| 685 * will segfault, since we no longer point to a dummy surface, | |
| 686 * but rather NULL. | |
| 687 * Sam 11/29/00 | |
| 688 * WARNING, we need to make sure that the previous mode hasn't | |
| 689 * already been freed by the video driver. What do we do in | |
| 690 * that case? Should we call SDL_VideoInit() again? | |
| 691 */ | |
| 692 SDL_VideoSurface = (mode != NULL) ? mode : prev_mode; | |
| 693 | |
| 694 if ( (mode != NULL) && (!is_opengl) ) { | |
| 695 /* Sanity check */ | |
| 696 if ( (mode->w < width) || (mode->h < height) ) { | |
| 697 SDL_SetError("Video mode smaller than requested"); | |
| 698 return(NULL); | |
| 699 } | |
| 700 | |
| 701 /* If we have a palettized surface, create a default palette */ | |
| 702 if ( mode->format->palette ) { | |
|
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703 SDL_PixelFormat *vf = mode->format; |
| 0 | 704 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 705 video->SetColors(this, 0, vf->palette->ncolors, | |
| 706 vf->palette->colors); | |
| 707 } | |
| 708 | |
| 709 /* Clear the surface to black */ | |
| 710 video->offset_x = 0; | |
| 711 video->offset_y = 0; | |
| 712 mode->offset = 0; | |
| 713 SDL_SetClipRect(mode, NULL); | |
| 714 SDL_ClearSurface(mode); | |
| 715 | |
| 716 /* Now adjust the offsets to match the desired mode */ | |
| 717 video->offset_x = (mode->w-width)/2; | |
| 718 video->offset_y = (mode->h-height)/2; | |
| 719 mode->offset = video->offset_y*mode->pitch + | |
| 720 video->offset_x*mode->format->BytesPerPixel; | |
| 721 #ifdef DEBUG_VIDEO | |
| 722 fprintf(stderr, | |
| 723 "Requested mode: %dx%dx%d, obtained mode %dx%dx%d (offset %d)\n", | |
| 724 width, height, bpp, | |
| 725 mode->w, mode->h, mode->format->BitsPerPixel, mode->offset); | |
| 726 #endif | |
| 727 mode->w = width; | |
| 728 mode->h = height; | |
| 729 SDL_SetClipRect(mode, NULL); | |
| 730 } | |
| 731 SDL_ResetCursor(); | |
| 732 SDL_UnlockCursor(); | |
| 733 | |
| 734 /* If we failed setting a video mode, return NULL... (Uh Oh!) */ | |
| 735 if ( mode == NULL ) { | |
| 736 return(NULL); | |
| 737 } | |
| 738 | |
| 739 /* If there is no window manager, set the SDL_NOFRAME flag */ | |
| 740 if ( ! video->info.wm_available ) { | |
| 741 mode->flags |= SDL_NOFRAME; | |
| 742 } | |
| 743 | |
| 744 /* Reset the mouse cursor and grab for new video mode */ | |
| 745 SDL_SetCursor(NULL); | |
| 746 if ( video->UpdateMouse ) { | |
| 747 video->UpdateMouse(this); | |
| 748 } | |
| 749 SDL_WM_GrabInput(saved_grab); | |
| 750 SDL_GetRelativeMouseState(NULL, NULL); /* Clear first large delta */ | |
| 751 | |
|
650
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|
752 #ifdef HAVE_OPENGL |
|
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|
753 /* Load GL symbols (before MakeCurrent, where we need glGetString). */ |
|
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Ryan C. Gordon <icculus@icculus.org>
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|
754 if ( flags & (SDL_OPENGL | SDL_OPENGLBLIT) ) { |
|
910
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|
755 |
|
1032
c1c2efca4548
Date: Mon, 24 Jan 2005 21:37:56 +0800
Sam Lantinga <slouken@libsdl.org>
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|
756 #if defined(__QNXNTO__) && (_NTO_VERSION < 630) |
|
916
46916168361d
Date: Sun, 25 Jul 2004 23:10:03 +0800
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757 #define __SDL_NOGETPROCADDR__ |
|
989
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Patrice Mandin <patmandin@gmail.com>
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758 #elif defined(__MINT__) |
|
475166d13b44
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Patrice Mandin <patmandin@gmail.com>
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759 #define __SDL_NOGETPROCADDR__ |
|
916
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|
760 #endif |
|
910
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|
761 #ifdef __SDL_NOGETPROCADDR__ |
|
4ab6d1fd028f
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762 #define SDL_PROC(ret,func,params) video->func=func; |
|
663
8bedd6d61642
Date: Sat, 2 Aug 2003 16:22:51 +0300
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763 #else |
|
910
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764 #define SDL_PROC(ret,func,params) \ |
|
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765 do { \ |
|
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766 video->func = SDL_GL_GetProcAddress(#func); \ |
|
4ab6d1fd028f
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|
767 if ( ! video->func ) { \ |
|
1141
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Ryan C. Gordon <icculus@icculus.org>
parents:
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diff
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|
768 SDL_SetError("Couldn't load GL function %s: %s\n", #func, SDL_GetError()); \ |
|
910
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769 return(NULL); \ |
|
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770 } \ |
|
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771 } while ( 0 ); |
|
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772 |
|
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|
773 #endif /* __SDL_NOGETPROCADDR__ */ |
|
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diff
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|
774 |
|
650
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Ryan C. Gordon <icculus@icculus.org>
parents:
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diff
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|
775 #include "SDL_glfuncs.h" |
|
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776 #undef SDL_PROC |
|
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|
777 } |
|
910
4ab6d1fd028f
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|
778 #endif /* HAVE_OPENGL */ |
|
650
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|
779 |
| 0 | 780 /* If we're running OpenGL, make the context current */ |
| 781 if ( (video->screen->flags & SDL_OPENGL) && | |
| 782 video->GL_MakeCurrent ) { | |
| 783 if ( video->GL_MakeCurrent(this) < 0 ) { | |
| 784 return(NULL); | |
| 785 } | |
| 786 } | |
| 787 | |
| 788 /* Set up a fake SDL surface for OpenGL "blitting" */ | |
| 789 if ( (flags & SDL_OPENGLBLIT) == SDL_OPENGLBLIT ) { | |
| 790 /* Load GL functions for performing the texture updates */ | |
| 791 #ifdef HAVE_OPENGL | |
| 792 | |
| 793 /* Create a software surface for blitting */ | |
| 794 #ifdef GL_VERSION_1_2 | |
| 795 /* If the implementation either supports the packed pixels | |
| 796 extension, or implements the core OpenGL 1.2 API, it will | |
| 797 support the GL_UNSIGNED_SHORT_5_6_5 texture format. | |
| 798 */ | |
| 799 if ( (bpp == 16) && | |
|
282
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Fixed SDL_OPENGLBLIT with OpenGL API newer than 1.2
Sam Lantinga <slouken@libsdl.org>
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800 (strstr((const char *)video->glGetString(GL_EXTENSIONS), "GL_EXT_packed_pixels") || |
|
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Fixed SDL_OPENGLBLIT with OpenGL API newer than 1.2
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801 (atof((const char *)video->glGetString(GL_VERSION)) >= 1.2f)) |
|
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802 ) { |
| 0 | 803 video->is_32bit = 0; |
| 804 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 805 flags, | |
| 806 width, | |
| 807 height, | |
| 808 16, | |
| 809 31 << 11, | |
| 810 63 << 5, | |
| 811 31, | |
| 812 0 | |
| 813 ); | |
| 814 } | |
| 815 else | |
| 816 #endif /* OpenGL 1.2 */ | |
| 817 { | |
| 818 video->is_32bit = 1; | |
| 819 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 820 flags, | |
| 821 width, | |
| 822 height, | |
| 823 32, | |
| 824 #if SDL_BYTEORDER == SDL_LIL_ENDIAN | |
| 825 0x000000FF, | |
| 826 0x0000FF00, | |
| 827 0x00FF0000, | |
| 828 0xFF000000 | |
| 829 #else | |
| 830 0xFF000000, | |
| 831 0x00FF0000, | |
| 832 0x0000FF00, | |
| 833 0x000000FF | |
| 834 #endif | |
| 835 ); | |
| 836 } | |
| 837 if ( ! SDL_VideoSurface ) { | |
| 838 return(NULL); | |
| 839 } | |
| 840 SDL_VideoSurface->flags = mode->flags | SDL_OPENGLBLIT; | |
| 841 | |
| 842 /* Free the original video mode surface (is this safe?) */ | |
| 843 SDL_FreeSurface(mode); | |
| 844 | |
|
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|
845 /* Set the surface completely opaque & white by default */ |
| 0 | 846 memset( SDL_VideoSurface->pixels, 255, SDL_VideoSurface->h * SDL_VideoSurface->pitch ); |
| 847 video->glGenTextures( 1, &video->texture ); | |
| 848 video->glBindTexture( GL_TEXTURE_2D, video->texture ); | |
| 849 video->glTexImage2D( | |
| 850 GL_TEXTURE_2D, | |
| 851 0, | |
| 852 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 853 256, | |
| 854 256, | |
| 855 0, | |
| 856 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 857 #ifdef GL_VERSION_1_2 | |
| 858 video->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 859 #else | |
| 860 GL_UNSIGNED_BYTE, | |
| 861 #endif | |
| 862 NULL); | |
| 863 | |
| 864 video->UpdateRects = SDL_GL_UpdateRectsLock; | |
| 865 #else | |
| 866 SDL_SetError("Somebody forgot to #define HAVE_OPENGL"); | |
| 867 return(NULL); | |
| 868 #endif | |
| 869 } | |
| 870 | |
| 871 /* Create a shadow surface if necessary */ | |
| 872 /* There are three conditions under which we create a shadow surface: | |
| 873 1. We need a particular bits-per-pixel that we didn't get. | |
| 874 2. We need a hardware palette and didn't get one. | |
| 875 3. We need a software surface and got a hardware surface. | |
| 876 */ | |
| 877 if ( !(SDL_VideoSurface->flags & SDL_OPENGL) && | |
| 878 ( | |
| 879 ( !(flags&SDL_ANYFORMAT) && | |
| 880 (SDL_VideoSurface->format->BitsPerPixel != bpp)) || | |
| 881 ( (flags&SDL_HWPALETTE) && | |
| 882 !(SDL_VideoSurface->flags&SDL_HWPALETTE)) || | |
| 883 /* If the surface is in hardware, video writes are visible | |
| 884 as soon as they are performed, so we need to buffer them | |
| 885 */ | |
| 886 ( ((flags&SDL_HWSURFACE) == SDL_SWSURFACE) && | |
|
580
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|
887 (SDL_VideoSurface->flags&SDL_HWSURFACE)) || |
|
be6495850a62
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|
888 ( (flags&SDL_DOUBLEBUF) && |
|
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diff
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|
889 (SDL_VideoSurface->flags&SDL_HWSURFACE) && |
|
be6495850a62
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diff
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|
890 !(SDL_VideoSurface->flags&SDL_DOUBLEBUF)) |
| 0 | 891 ) ) { |
| 892 SDL_CreateShadowSurface(bpp); | |
| 893 if ( SDL_ShadowSurface == NULL ) { | |
| 894 SDL_SetError("Couldn't create shadow surface"); | |
| 895 return(NULL); | |
| 896 } | |
| 897 SDL_PublicSurface = SDL_ShadowSurface; | |
| 898 } else { | |
| 899 SDL_PublicSurface = SDL_VideoSurface; | |
| 900 } | |
| 901 video->info.vfmt = SDL_VideoSurface->format; | |
| 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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*** empty log message ***
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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; |
|
3879bed3395c
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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 */ | |
| 1008 rect.x = x; | |
| 1009 rect.y = y; | |
| 1010 rect.w = w; | |
| 1011 rect.h = h; | |
| 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 | |
| 1021 if ( screen == SDL_ShadowSurface ) { | |
| 1022 /* Blit the shadow surface using saved mapping */ | |
|
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1023 SDL_Palette *pal = screen->format->palette; |
| 0 | 1024 SDL_Color *saved_colors = NULL; |
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1025 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1026 /* simulated 8bpp, use correct physical palette */ |
| 1027 saved_colors = pal->colors; | |
| 1028 if ( video->gammacols ) { | |
| 1029 /* gamma-corrected palette */ | |
| 1030 pal->colors = video->gammacols; | |
| 1031 } else if ( video->physpal ) { | |
| 1032 /* physical palette different from logical */ | |
| 1033 pal->colors = video->physpal->colors; | |
| 1034 } | |
| 1035 } | |
| 1036 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { | |
| 1037 SDL_LockCursor(); | |
| 1038 SDL_DrawCursor(SDL_ShadowSurface); | |
| 1039 for ( i=0; i<numrects; ++i ) { | |
| 1040 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1041 SDL_VideoSurface, &rects[i]); | |
| 1042 } | |
| 1043 SDL_EraseCursor(SDL_ShadowSurface); | |
| 1044 SDL_UnlockCursor(); | |
| 1045 } else { | |
| 1046 for ( i=0; i<numrects; ++i ) { | |
| 1047 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1048 SDL_VideoSurface, &rects[i]); | |
| 1049 } | |
| 1050 } | |
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1051 if ( saved_colors ) { |
| 0 | 1052 pal->colors = saved_colors; |
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1053 } |
| 0 | 1054 |
| 1055 /* Fall through to video surface update */ | |
| 1056 screen = SDL_VideoSurface; | |
| 1057 } | |
| 1058 if ( screen == SDL_VideoSurface ) { | |
| 1059 /* Update the video surface */ | |
| 1060 if ( screen->offset ) { | |
| 1061 for ( i=0; i<numrects; ++i ) { | |
| 1062 rects[i].x += video->offset_x; | |
| 1063 rects[i].y += video->offset_y; | |
| 1064 } | |
| 1065 video->UpdateRects(this, numrects, rects); | |
| 1066 for ( i=0; i<numrects; ++i ) { | |
| 1067 rects[i].x -= video->offset_x; | |
| 1068 rects[i].y -= video->offset_y; | |
| 1069 } | |
| 1070 } else { | |
| 1071 video->UpdateRects(this, numrects, rects); | |
| 1072 } | |
| 1073 } | |
| 1074 } | |
| 1075 | |
| 1076 /* | |
| 1077 * Performs hardware double buffering, if possible, or a full update if not. | |
| 1078 */ | |
| 1079 int SDL_Flip(SDL_Surface *screen) | |
| 1080 { | |
| 1081 SDL_VideoDevice *video = current_video; | |
| 1082 /* Copy the shadow surface to the video surface */ | |
| 1083 if ( screen == SDL_ShadowSurface ) { | |
| 1084 SDL_Rect rect; | |
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1085 SDL_Palette *pal = screen->format->palette; |
| 0 | 1086 SDL_Color *saved_colors = NULL; |
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1087 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1088 /* simulated 8bpp, use correct physical palette */ |
| 1089 saved_colors = pal->colors; | |
| 1090 if ( video->gammacols ) { | |
| 1091 /* gamma-corrected palette */ | |
| 1092 pal->colors = video->gammacols; | |
| 1093 } else if ( video->physpal ) { | |
| 1094 /* physical palette different from logical */ | |
| 1095 pal->colors = video->physpal->colors; | |
| 1096 } | |
| 1097 } | |
| 1098 | |
| 1099 rect.x = 0; | |
| 1100 rect.y = 0; | |
| 1101 rect.w = screen->w; | |
| 1102 rect.h = screen->h; | |
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1103 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { |
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1104 SDL_LockCursor(); |
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1105 SDL_DrawCursor(SDL_ShadowSurface); |
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1106 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1107 SDL_VideoSurface, &rect); |
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1108 SDL_EraseCursor(SDL_ShadowSurface); |
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1109 SDL_UnlockCursor(); |
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1110 } else { |
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1111 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1112 SDL_VideoSurface, &rect); |
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1113 } |
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1114 if ( saved_colors ) { |
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1115 pal->colors = saved_colors; |
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1116 } |
| 0 | 1117 |
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1118 /* Fall through to video surface update */ |
| 0 | 1119 screen = SDL_VideoSurface; |
| 1120 } | |
| 1121 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 1122 SDL_VideoDevice *this = current_video; | |
| 1123 return(video->FlipHWSurface(this, SDL_VideoSurface)); | |
| 1124 } else { | |
| 1125 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1126 } | |
| 1127 return(0); | |
| 1128 } | |
| 1129 | |
| 1130 static void SetPalette_logical(SDL_Surface *screen, SDL_Color *colors, | |
| 1131 int firstcolor, int ncolors) | |
| 1132 { | |
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1133 SDL_Palette *pal = screen->format->palette; |
| 0 | 1134 SDL_Palette *vidpal; |
| 1135 | |
| 1136 if ( colors != (pal->colors + firstcolor) ) { | |
|
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1137 memcpy(pal->colors + firstcolor, colors, |
| 0 | 1138 ncolors * sizeof(*colors)); |
| 1139 } | |
| 1140 | |
| 1141 vidpal = SDL_VideoSurface->format->palette; | |
| 1142 if ( (screen == SDL_ShadowSurface) && vidpal ) { | |
|
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1143 /* |
| 0 | 1144 * This is a shadow surface, and the physical |
| 1145 * framebuffer is also indexed. Propagate the | |
| 1146 * changes to its logical palette so that | |
| 1147 * updates are always identity blits | |
| 1148 */ | |
| 1149 memcpy(vidpal->colors + firstcolor, colors, | |
| 1150 ncolors * sizeof(*colors)); | |
| 1151 } | |
| 1152 SDL_FormatChanged(screen); | |
| 1153 } | |
| 1154 | |
| 1155 static int SetPalette_physical(SDL_Surface *screen, | |
| 1156 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1157 { | |
| 1158 SDL_VideoDevice *video = current_video; | |
| 1159 int gotall = 1; | |
| 1160 | |
| 1161 if ( video->physpal ) { | |
| 1162 /* We need to copy the new colors, since we haven't | |
| 1163 * already done the copy in the logical set above. | |
| 1164 */ | |
| 1165 memcpy(video->physpal->colors + firstcolor, | |
| 1166 colors, ncolors * sizeof(*colors)); | |
| 1167 } | |
| 1168 if ( screen == SDL_ShadowSurface ) { | |
| 1169 if ( SDL_VideoSurface->flags & SDL_HWPALETTE ) { | |
| 1170 /* | |
| 1171 * The real screen is also indexed - set its physical | |
| 1172 * palette. The physical palette does not include the | |
| 1173 * gamma modification, we apply it directly instead, | |
| 1174 * but this only happens if we have hardware palette. | |
| 1175 */ | |
| 1176 screen = SDL_VideoSurface; | |
| 1177 } else { | |
| 1178 /* | |
| 1179 * The video surface is not indexed - invalidate any | |
| 1180 * active shadow-to-video blit mappings. | |
| 1181 */ | |
| 1182 if ( screen->map->dst == SDL_VideoSurface ) { | |
| 1183 SDL_InvalidateMap(screen->map); | |
| 1184 } | |
| 1185 if ( video->gamma ) { | |
| 1186 if( ! video->gammacols ) { | |
| 1187 SDL_Palette *pp = video->physpal; | |
| 1188 if(!pp) | |
| 1189 pp = screen->format->palette; | |
| 1190 video->gammacols = malloc(pp->ncolors | |
| 1191 * sizeof(SDL_Color)); | |
| 1192 SDL_ApplyGamma(video->gamma, | |
| 1193 pp->colors, | |
| 1194 video->gammacols, | |
| 1195 pp->ncolors); | |
| 1196 } else { | |
| 1197 SDL_ApplyGamma(video->gamma, colors, | |
| 1198 video->gammacols | |
| 1199 + firstcolor, | |
| 1200 ncolors); | |
| 1201 } | |
| 1202 } | |
| 1203 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1204 } | |
| 1205 } | |
| 1206 | |
| 1207 if ( screen == SDL_VideoSurface ) { | |
| 1208 SDL_Color gcolors[256]; | |
| 1209 | |
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1210 if ( video->gamma ) { |
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1211 SDL_ApplyGamma(video->gamma, colors, gcolors, ncolors); |
| 0 | 1212 colors = gcolors; |
| 1213 } | |
| 1214 gotall = video->SetColors(video, firstcolor, ncolors, colors); | |
| 1215 if ( ! gotall ) { | |
| 1216 /* The video flags shouldn't have SDL_HWPALETTE, and | |
| 1217 the video driver is responsible for copying back the | |
| 1218 correct colors into the video surface palette. | |
| 1219 */ | |
| 1220 ; | |
| 1221 } | |
| 1222 SDL_CursorPaletteChanged(); | |
| 1223 } | |
| 1224 return gotall; | |
| 1225 } | |
| 1226 | |
| 1227 /* | |
| 1228 * Set the physical and/or logical colormap of a surface: | |
| 1229 * Only the screen has a physical colormap. It determines what is actually | |
| 1230 * sent to the display. | |
| 1231 * The logical colormap is used to map blits to/from the surface. | |
| 1232 * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL | |
| 1233 * | |
| 1234 * Return nonzero if all colours were set as requested, or 0 otherwise. | |
| 1235 */ | |
| 1236 int SDL_SetPalette(SDL_Surface *screen, int which, | |
| 1237 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1238 { | |
|
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1239 SDL_Palette *pal; |
| 0 | 1240 int gotall; |
| 1241 int palsize; | |
| 1242 | |
| 34 | 1243 if ( ! current_video ) { |
| 1244 return 0; | |
| 1245 } | |
| 0 | 1246 if ( screen != SDL_PublicSurface ) { |
|
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1247 /* only screens have physical palettes */ |
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1248 which &= ~SDL_PHYSPAL; |
| 0 | 1249 } else if( (screen->flags & SDL_HWPALETTE) != SDL_HWPALETTE ) { |
|
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1250 /* hardware palettes required for split colormaps */ |
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1251 which |= SDL_PHYSPAL | SDL_LOGPAL; |
| 0 | 1252 } |
| 1253 | |
| 1254 /* Verify the parameters */ | |
| 1255 pal = screen->format->palette; | |
| 1256 if( !pal ) { | |
|
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1257 return 0; /* not a palettized surface */ |
| 0 | 1258 } |
| 1259 gotall = 1; | |
| 1260 palsize = 1 << screen->format->BitsPerPixel; | |
| 1261 if ( ncolors > (palsize - firstcolor) ) { | |
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1262 ncolors = (palsize - firstcolor); |
| 0 | 1263 gotall = 0; |
| 1264 } | |
| 1265 | |
| 1266 if ( which & SDL_LOGPAL ) { | |
| 1267 /* | |
| 1268 * Logical palette change: The actual screen isn't affected, | |
| 1269 * but the internal colormap is altered so that the | |
| 1270 * interpretation of the pixel values (for blits etc) is | |
| 1271 * changed. | |
| 1272 */ | |
|
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1273 SetPalette_logical(screen, colors, firstcolor, ncolors); |
| 0 | 1274 } |
| 1275 if ( which & SDL_PHYSPAL ) { | |
| 1276 SDL_VideoDevice *video = current_video; | |
|
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1277 /* |
| 0 | 1278 * Physical palette change: This doesn't affect the |
| 1279 * program's idea of what the screen looks like, but changes | |
| 1280 * its actual appearance. | |
| 1281 */ | |
|
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1282 if(!video) |
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1283 return gotall; /* video not yet initialized */ |
| 0 | 1284 if(!video->physpal && !(which & SDL_LOGPAL) ) { |
| 1285 /* Lazy physical palette allocation */ | |
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1286 int size; |
| 0 | 1287 SDL_Palette *pp = malloc(sizeof(*pp)); |
|
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1288 if ( !pp ) { |
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1289 return 0; |
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1290 } |
| 0 | 1291 current_video->physpal = pp; |
| 1292 pp->ncolors = pal->ncolors; | |
| 1293 size = pp->ncolors * sizeof(SDL_Color); | |
| 1294 pp->colors = malloc(size); | |
|
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1295 if ( !pp->colors ) { |
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1296 return 0; |
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1297 } |
| 0 | 1298 memcpy(pp->colors, pal->colors, size); |
| 1299 } | |
| 1300 if ( ! SetPalette_physical(screen, | |
| 1301 colors, firstcolor, ncolors) ) { | |
| 1302 gotall = 0; | |
| 1303 } | |
| 1304 } | |
| 1305 return gotall; | |
| 1306 } | |
| 1307 | |
| 1308 int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor, | |
| 1309 int ncolors) | |
| 1310 { | |
|
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1311 return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, |
| 0 | 1312 colors, firstcolor, ncolors); |
| 1313 } | |
| 1314 | |
| 1315 /* | |
| 1316 * Clean up the video subsystem | |
| 1317 */ | |
| 1318 void SDL_VideoQuit (void) | |
| 1319 { | |
| 1320 SDL_Surface *ready_to_go; | |
| 1321 | |
| 1322 if ( current_video ) { | |
| 1323 SDL_VideoDevice *video = current_video; | |
| 1324 SDL_VideoDevice *this = current_video; | |
| 1325 | |
| 1326 /* Halt event processing before doing anything else */ | |
| 1327 SDL_StopEventLoop(); | |
| 1328 | |
| 1329 /* Clean up allocated window manager items */ | |
| 1330 if ( SDL_PublicSurface ) { | |
| 1331 SDL_PublicSurface = NULL; | |
| 1332 } | |
| 1333 SDL_CursorQuit(); | |
| 1334 | |
| 1335 /* Just in case... */ | |
| 1336 SDL_WM_GrabInputOff(); | |
| 1337 | |
| 1338 /* Clean up the system video */ | |
| 1339 video->VideoQuit(this); | |
| 1340 | |
| 1341 /* Free any lingering surfaces */ | |
| 1342 ready_to_go = SDL_ShadowSurface; | |
| 1343 SDL_ShadowSurface = NULL; | |
| 1344 SDL_FreeSurface(ready_to_go); | |
| 1345 if ( SDL_VideoSurface != NULL ) { | |
| 1346 ready_to_go = SDL_VideoSurface; | |
| 1347 SDL_VideoSurface = NULL; | |
| 1348 SDL_FreeSurface(ready_to_go); | |
| 1349 } | |
| 1350 SDL_PublicSurface = NULL; | |
| 1351 | |
| 1352 /* Clean up miscellaneous memory */ | |
| 1353 if ( video->physpal ) { | |
| 1354 free(video->physpal->colors); | |
| 1355 free(video->physpal); | |
| 1356 video->physpal = NULL; | |
| 1357 } | |
| 1358 if ( video->gammacols ) { | |
| 1359 free(video->gammacols); | |
| 1360 video->gammacols = NULL; | |
| 1361 } | |
| 1362 if ( video->gamma ) { | |
| 1363 free(video->gamma); | |
| 1364 video->gamma = NULL; | |
| 1365 } | |
|
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1366 if ( video->wm_title != NULL ) { |
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1367 free(video->wm_title); |
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1368 video->wm_title = NULL; |
| 0 | 1369 } |
|
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1370 if ( video->wm_icon != NULL ) { |
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|
1371 free(video->wm_icon); |
|
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|
1372 video->wm_icon = NULL; |
| 0 | 1373 } |
| 1374 | |
| 1375 /* Finish cleaning up video subsystem */ | |
| 1376 video->free(this); | |
| 1377 current_video = NULL; | |
| 1378 } | |
| 1379 return; | |
| 1380 } | |
| 1381 | |
| 1382 /* Load the GL driver library */ | |
| 1383 int SDL_GL_LoadLibrary(const char *path) | |
| 1384 { | |
| 1385 SDL_VideoDevice *video = current_video; | |
| 1386 SDL_VideoDevice *this = current_video; | |
| 1387 int retval; | |
| 1388 | |
| 1389 retval = -1; | |
|
423
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|
1390 if ( video == NULL ) { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1391 SDL_SetError("Video subsystem has not been initialized"); |
| 0 | 1392 } else { |
|
423
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More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1393 if ( video->GL_LoadLibrary ) { |
|
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|
1394 retval = video->GL_LoadLibrary(this, path); |
|
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|
1395 } else { |
|
d1565c52ded5
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|
1396 SDL_SetError("No dynamic GL support in video driver"); |
|
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|
1397 } |
| 0 | 1398 } |
| 1399 return(retval); | |
| 1400 } | |
| 1401 | |
| 1402 void *SDL_GL_GetProcAddress(const char* proc) | |
| 1403 { | |
| 1404 SDL_VideoDevice *video = current_video; | |
| 1405 SDL_VideoDevice *this = current_video; | |
| 1406 void *func; | |
| 1407 | |
| 1408 func = NULL; | |
| 1409 if ( video->GL_GetProcAddress ) { | |
| 1410 if ( video->gl_config.driver_loaded ) { | |
| 1411 func = video->GL_GetProcAddress(this, proc); | |
| 1412 } else { | |
| 1413 SDL_SetError("No GL driver has been loaded"); | |
| 1414 } | |
| 1415 } else { | |
| 1416 SDL_SetError("No dynamic GL support in video driver"); | |
| 1417 } | |
| 1418 return func; | |
| 1419 } | |
| 1420 | |
| 1421 /* Set the specified GL attribute for setting up a GL video mode */ | |
| 1422 int SDL_GL_SetAttribute( SDL_GLattr attr, int value ) | |
| 1423 { | |
| 1424 int retval; | |
| 1425 SDL_VideoDevice *video = current_video; | |
| 1426 | |
| 1427 retval = 0; | |
| 1428 switch (attr) { | |
| 1429 case SDL_GL_RED_SIZE: | |
| 1430 video->gl_config.red_size = value; | |
| 1431 break; | |
| 1432 case SDL_GL_GREEN_SIZE: | |
| 1433 video->gl_config.green_size = value; | |
| 1434 break; | |
| 1435 case SDL_GL_BLUE_SIZE: | |
| 1436 video->gl_config.blue_size = value; | |
| 1437 break; | |
| 1438 case SDL_GL_ALPHA_SIZE: | |
| 1439 video->gl_config.alpha_size = value; | |
| 1440 break; | |
| 1441 case SDL_GL_DOUBLEBUFFER: | |
| 1442 video->gl_config.double_buffer = value; | |
| 1443 break; | |
|
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1444 case SDL_GL_BUFFER_SIZE: |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1445 video->gl_config.buffer_size = value; |
| 0 | 1446 break; |
| 1447 case SDL_GL_DEPTH_SIZE: | |
| 1448 video->gl_config.depth_size = value; | |
| 1449 break; | |
| 1450 case SDL_GL_STENCIL_SIZE: | |
| 1451 video->gl_config.stencil_size = value; | |
| 1452 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1453 case SDL_GL_ACCUM_RED_SIZE: |
| 0 | 1454 video->gl_config.accum_red_size = value; |
| 1455 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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diff
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|
1456 case SDL_GL_ACCUM_GREEN_SIZE: |
| 0 | 1457 video->gl_config.accum_green_size = value; |
| 1458 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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changeset
|
1459 case SDL_GL_ACCUM_BLUE_SIZE: |
| 0 | 1460 video->gl_config.accum_blue_size = value; |
| 1461 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1462 case SDL_GL_ACCUM_ALPHA_SIZE: |
| 0 | 1463 video->gl_config.accum_alpha_size = value; |
| 1464 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1465 case SDL_GL_STEREO: |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1466 video->gl_config.stereo = value; |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1467 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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|
1468 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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diff
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|
1469 video->gl_config.multisamplebuffers = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1470 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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diff
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|
1471 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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diff
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|
1472 video->gl_config.multisamplesamples = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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diff
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|
1473 break; |
| 0 | 1474 default: |
| 1475 SDL_SetError("Unknown OpenGL attribute"); | |
| 1476 retval = -1; | |
| 1477 break; | |
| 1478 } | |
| 1479 return(retval); | |
| 1480 } | |
| 1481 | |
| 1482 /* Retrieve an attribute value from the windowing system. */ | |
| 1483 int SDL_GL_GetAttribute(SDL_GLattr attr, int* value) | |
| 1484 { | |
| 1485 int retval = -1; | |
| 1486 SDL_VideoDevice* video = current_video; | |
| 1487 SDL_VideoDevice* this = current_video; | |
| 1488 | |
| 1489 if ( video->GL_GetAttribute ) { | |
| 1490 retval = this->GL_GetAttribute(this, attr, value); | |
|
11
7b94b6379341
*** empty log message ***
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diff
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|
1491 } else { |
|
7b94b6379341
*** empty log message ***
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diff
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|
1492 *value = 0; |
|
7b94b6379341
*** empty log message ***
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diff
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|
1493 SDL_SetError("GL_GetAttribute not supported"); |
| 0 | 1494 } |
| 1495 return retval; | |
| 1496 } | |
| 1497 | |
| 1498 /* Perform a GL buffer swap on the current GL context */ | |
| 1499 void SDL_GL_SwapBuffers(void) | |
| 1500 { | |
| 1501 SDL_VideoDevice *video = current_video; | |
| 1502 SDL_VideoDevice *this = current_video; | |
| 1503 | |
| 1504 if ( video->screen->flags & SDL_OPENGL ) { | |
|
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|
1505 video->GL_SwapBuffers(this); |
|
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|
1506 } else { |
|
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|
1507 SDL_SetError("OpenGL video mode has not been set"); |
| 0 | 1508 } |
| 1509 } | |
| 1510 | |
| 1511 /* Update rects with locking */ | |
| 1512 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect *rects) | |
| 1513 { | |
| 1514 SDL_GL_Lock(); | |
| 1515 SDL_GL_UpdateRects(numrects, rects); | |
| 1516 SDL_GL_Unlock(); | |
| 1517 } | |
| 1518 | |
| 1519 /* Update rects without state setting and changing (the caller is responsible for it) */ | |
| 1520 void SDL_GL_UpdateRects(int numrects, SDL_Rect *rects) | |
| 1521 { | |
| 1522 #ifdef HAVE_OPENGL | |
| 1523 SDL_VideoDevice *this = current_video; | |
| 1524 SDL_Rect update, tmp; | |
| 1525 int x, y, i; | |
| 1526 | |
| 1527 for ( i = 0; i < numrects; i++ ) | |
| 1528 { | |
| 1529 tmp.y = rects[i].y; | |
| 1530 tmp.h = rects[i].h; | |
| 1531 for ( y = 0; y <= rects[i].h / 256; y++ ) | |
| 1532 { | |
| 1533 tmp.x = rects[i].x; | |
| 1534 tmp.w = rects[i].w; | |
| 1535 for ( x = 0; x <= rects[i].w / 256; x++ ) | |
| 1536 { | |
| 1537 update.x = tmp.x; | |
| 1538 update.y = tmp.y; | |
| 1539 update.w = tmp.w; | |
| 1540 update.h = tmp.h; | |
| 1541 | |
| 1542 if ( update.w > 256 ) | |
| 1543 update.w = 256; | |
| 1544 | |
| 1545 if ( update.h > 256 ) | |
| 1546 update.h = 256; | |
| 1547 | |
| 1548 this->glFlush(); | |
| 1549 this->glTexSubImage2D( | |
| 1550 GL_TEXTURE_2D, | |
| 1551 0, | |
| 1552 0, | |
| 1553 0, | |
| 1554 update.w, | |
| 1555 update.h, | |
| 1556 this->is_32bit? GL_RGBA : GL_RGB, | |
| 1557 #ifdef GL_VERSION_1_2 | |
| 1558 this->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 1559 #else | |
| 1560 GL_UNSIGNED_BYTE, | |
| 1561 #endif | |
| 1562 (Uint8 *)this->screen->pixels + | |
| 1563 this->screen->format->BytesPerPixel * update.x + | |
| 1564 update.y * this->screen->pitch ); | |
| 1565 | |
| 1566 this->glFlush(); | |
| 1567 /* | |
| 1568 * Note the parens around the function name: | |
| 1569 * This is because some OpenGL implementations define glTexCoord etc | |
| 1570 * as macros, and we don't want them expanded here. | |
| 1571 */ | |
| 1572 this->glBegin(GL_TRIANGLE_STRIP); | |
| 1573 (this->glTexCoord2f)( 0.0, 0.0 ); | |
| 1574 (this->glVertex2i)( update.x, update.y ); | |
| 1575 (this->glTexCoord2f)( (float)(update.w / 256.0), 0.0 ); | |
| 1576 (this->glVertex2i)( update.x + update.w, update.y ); | |
| 1577 (this->glTexCoord2f)( 0.0, (float)(update.h / 256.0) ); | |
| 1578 (this->glVertex2i)( update.x, update.y + update.h ); | |
| 1579 (this->glTexCoord2f)( (float)(update.w / 256.0), (float)(update.h / 256.0) ); | |
| 1580 (this->glVertex2i)( update.x + update.w , update.y + update.h ); | |
| 1581 this->glEnd(); | |
| 1582 | |
| 1583 tmp.x += 256; | |
| 1584 tmp.w -= 256; | |
| 1585 } | |
| 1586 tmp.y += 256; | |
| 1587 tmp.h -= 256; | |
| 1588 } | |
| 1589 } | |
| 1590 #endif | |
| 1591 } | |
| 1592 | |
| 1593 /* Lock == save current state */ | |
| 1594 void SDL_GL_Lock() | |
| 1595 { | |
| 1596 #ifdef HAVE_OPENGL | |
| 1597 lock_count--; | |
| 1598 if (lock_count==-1) | |
| 1599 { | |
| 1600 SDL_VideoDevice *this = current_video; | |
| 1601 | |
| 1602 this->glPushAttrib( GL_ALL_ATTRIB_BITS ); /* TODO: narrow range of what is saved */ | |
|
125
0ae324925dd7
Fix build when GL_CLIENT_PIXEL_STORE_BIT is not defined
Sam Lantinga <slouken@libsdl.org>
parents:
75
diff
changeset
|
1603 #ifdef GL_CLIENT_PIXEL_STORE_BIT |
| 0 | 1604 this->glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT ); |
|
125
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Fix build when GL_CLIENT_PIXEL_STORE_BIT is not defined
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
1605 #endif |
| 0 | 1606 |
| 1607 this->glEnable(GL_TEXTURE_2D); | |
| 1608 this->glEnable(GL_BLEND); | |
| 1609 this->glDisable(GL_FOG); | |
| 1610 this->glDisable(GL_ALPHA_TEST); | |
| 1611 this->glDisable(GL_DEPTH_TEST); | |
| 1612 this->glDisable(GL_SCISSOR_TEST); | |
| 1613 this->glDisable(GL_STENCIL_TEST); | |
| 1614 this->glDisable(GL_CULL_FACE); | |
| 1615 | |
| 1616 this->glBindTexture( GL_TEXTURE_2D, this->texture ); | |
| 1617 this->glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); | |
| 1618 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); | |
| 1619 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); | |
| 1620 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); | |
| 1621 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT ); | |
| 1622 | |
| 1623 this->glPixelStorei( GL_UNPACK_ROW_LENGTH, this->screen->pitch / this->screen->format->BytesPerPixel ); | |
| 1624 this->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
| 1625 (this->glColor4f)(1.0, 1.0, 1.0, 1.0); /* Solaris workaround */ | |
| 1626 | |
| 1627 this->glViewport(0, 0, this->screen->w, this->screen->h); | |
| 1628 this->glMatrixMode(GL_PROJECTION); | |
| 1629 this->glPushMatrix(); | |
| 1630 this->glLoadIdentity(); | |
| 1631 | |
| 1632 this->glOrtho(0.0, (GLdouble) this->screen->w, (GLdouble) this->screen->h, 0.0, 0.0, 1.0); | |
| 1633 | |
| 1634 this->glMatrixMode(GL_MODELVIEW); | |
| 1635 this->glPushMatrix(); | |
| 1636 this->glLoadIdentity(); | |
| 1637 } | |
| 1638 #endif | |
| 1639 } | |
| 1640 | |
| 1641 /* Unlock == restore saved state */ | |
| 1642 void SDL_GL_Unlock() | |
| 1643 { | |
| 1644 #ifdef HAVE_OPENGL | |
| 1645 lock_count++; | |
| 1646 if (lock_count==0) | |
| 1647 { | |
| 1648 SDL_VideoDevice *this = current_video; | |
| 1649 | |
| 1650 this->glPopMatrix(); | |
| 1651 this->glMatrixMode(GL_PROJECTION); | |
| 1652 this->glPopMatrix(); | |
| 1653 | |
| 1654 this->glPopClientAttrib(); | |
| 1655 this->glPopAttrib(); | |
| 1656 } | |
| 1657 #endif | |
| 1658 } | |
| 1659 | |
| 1660 /* | |
| 1661 * Sets/Gets the title and icon text of the display window, if any. | |
| 1662 */ | |
| 1663 void SDL_WM_SetCaption (const char *title, const char *icon) | |
| 1664 { | |
| 1665 SDL_VideoDevice *video = current_video; | |
| 1666 SDL_VideoDevice *this = current_video; | |
| 1667 | |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1668 if ( video ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1669 if ( title ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1670 if ( video->wm_title ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
1671 free(video->wm_title); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1672 } |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1673 video->wm_title = (char *)malloc(strlen(title)+1); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
1674 if ( video->wm_title != NULL ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
1675 strcpy(video->wm_title, title); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
1676 } |
| 0 | 1677 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
1678 if ( icon ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1679 if ( video->wm_icon ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1680 free(video->wm_icon); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1681 } |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1682 video->wm_icon = (char *)malloc(strlen(icon)+1); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1683 if ( video->wm_icon != NULL ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1684 strcpy(video->wm_icon, icon); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
1685 } |
| 0 | 1686 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
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|
1687 if ( (title || icon) && (video->SetCaption != NULL) ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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parents:
47
diff
changeset
|
1688 video->SetCaption(this, video->wm_title,video->wm_icon); |
| 0 | 1689 } |
| 1690 } | |
| 1691 } | |
| 1692 void SDL_WM_GetCaption (char **title, char **icon) | |
| 1693 { | |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
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|
1694 SDL_VideoDevice *video = current_video; |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
1695 |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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diff
changeset
|
1696 if ( video ) { |
|
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1697 if ( title ) { |
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1698 *title = video->wm_title; |
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1699 } |
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1700 if ( icon ) { |
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1701 *icon = video->wm_icon; |
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1702 } |
| 0 | 1703 } |
| 1704 } | |
| 1705 | |
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1706 /* Utility function used by SDL_WM_SetIcon(); |
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1707 * flags & 1 for color key, flags & 2 for alpha channel. */ |
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1708 static void CreateMaskFromColorKeyOrAlpha(SDL_Surface *icon, Uint8 *mask, int flags) |
| 0 | 1709 { |
| 1710 int x, y; | |
| 1711 Uint32 colorkey; | |
| 1712 #define SET_MASKBIT(icon, x, y, mask) \ | |
| 1713 mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8))) | |
| 1714 | |
| 1715 colorkey = icon->format->colorkey; | |
| 1716 switch (icon->format->BytesPerPixel) { | |
| 1717 case 1: { Uint8 *pixels; | |
| 1718 for ( y=0; y<icon->h; ++y ) { | |
| 1719 pixels = (Uint8 *)icon->pixels + y*icon->pitch; | |
| 1720 for ( x=0; x<icon->w; ++x ) { | |
| 1721 if ( *pixels++ == colorkey ) { | |
| 1722 SET_MASKBIT(icon, x, y, mask); | |
| 1723 } | |
| 1724 } | |
| 1725 } | |
| 1726 } | |
| 1727 break; | |
| 1728 | |
| 1729 case 2: { Uint16 *pixels; | |
| 1730 for ( y=0; y<icon->h; ++y ) { | |
| 1731 pixels = (Uint16 *)icon->pixels + | |
| 1732 y*icon->pitch/2; | |
| 1733 for ( x=0; x<icon->w; ++x ) { | |
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1734 if ( (flags & 1) && *pixels == colorkey ) { |
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1735 SET_MASKBIT(icon, x, y, mask); |
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1736 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1737 SET_MASKBIT(icon, x, y, mask); |
| 1738 } | |
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1739 pixels++; |
| 0 | 1740 } |
| 1741 } | |
| 1742 } | |
| 1743 break; | |
| 1744 | |
| 1745 case 4: { Uint32 *pixels; | |
| 1746 for ( y=0; y<icon->h; ++y ) { | |
| 1747 pixels = (Uint32 *)icon->pixels + | |
| 1748 y*icon->pitch/4; | |
| 1749 for ( x=0; x<icon->w; ++x ) { | |
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1750 if ( (flags & 1) && *pixels == colorkey ) { |
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1751 SET_MASKBIT(icon, x, y, mask); |
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1752 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1753 SET_MASKBIT(icon, x, y, mask); |
| 1754 } | |
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1755 pixels++; |
| 0 | 1756 } |
| 1757 } | |
| 1758 } | |
| 1759 break; | |
| 1760 } | |
| 1761 } | |
| 1762 | |
| 1763 /* | |
| 1764 * Sets the window manager icon for the display window. | |
| 1765 */ | |
| 1766 void SDL_WM_SetIcon (SDL_Surface *icon, Uint8 *mask) | |
| 1767 { | |
| 1768 SDL_VideoDevice *video = current_video; | |
| 1769 SDL_VideoDevice *this = current_video; | |
| 1770 | |
| 1771 if ( icon && video->SetIcon ) { | |
| 1772 /* Generate a mask if necessary, and create the icon! */ | |
| 1773 if ( mask == NULL ) { | |
| 1774 int mask_len = icon->h*(icon->w+7)/8; | |
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1775 int flags = 0; |
| 0 | 1776 mask = (Uint8 *)malloc(mask_len); |
| 1777 if ( mask == NULL ) { | |
| 1778 return; | |
| 1779 } | |
| 1780 memset(mask, ~0, mask_len); | |
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1781 if ( icon->flags & SDL_SRCCOLORKEY ) flags |= 1; |
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1782 if ( icon->flags & SDL_SRCALPHA ) flags |= 2; |
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1783 if( flags ) { |
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1784 CreateMaskFromColorKeyOrAlpha(icon, mask, flags); |
| 0 | 1785 } |
| 1786 video->SetIcon(video, icon, mask); | |
| 1787 free(mask); | |
| 1788 } else { | |
| 1789 video->SetIcon(this, icon, mask); | |
| 1790 } | |
| 1791 } | |
| 1792 } | |
| 1793 | |
| 1794 /* | |
| 1795 * Grab or ungrab the keyboard and mouse input. | |
| 1796 * This function returns the final grab mode after calling the | |
| 1797 * driver dependent function. | |
| 1798 */ | |
| 1799 static SDL_GrabMode SDL_WM_GrabInputRaw(SDL_GrabMode mode) | |
| 1800 { | |
| 1801 SDL_VideoDevice *video = current_video; | |
| 1802 SDL_VideoDevice *this = current_video; | |
| 1803 | |
| 1804 /* Only do something if we have support for grabs */ | |
| 1805 if ( video->GrabInput == NULL ) { | |
| 1806 return(video->input_grab); | |
| 1807 } | |
| 1808 | |
| 1809 /* If the final grab mode if off, only then do we actually grab */ | |
| 1810 #ifdef DEBUG_GRAB | |
| 1811 printf("SDL_WM_GrabInputRaw(%d) ... ", mode); | |
| 1812 #endif | |
| 1813 if ( mode == SDL_GRAB_OFF ) { | |
| 1814 if ( video->input_grab != SDL_GRAB_OFF ) { | |
| 1815 mode = video->GrabInput(this, mode); | |
| 1816 } | |
| 1817 } else { | |
| 1818 if ( video->input_grab == SDL_GRAB_OFF ) { | |
| 1819 mode = video->GrabInput(this, mode); | |
| 1820 } | |
| 1821 } | |
| 1822 if ( mode != video->input_grab ) { | |
| 1823 video->input_grab = mode; | |
| 1824 if ( video->CheckMouseMode ) { | |
| 1825 video->CheckMouseMode(this); | |
| 1826 } | |
| 1827 } | |
| 1828 #ifdef DEBUG_GRAB | |
| 1829 printf("Final mode %d\n", video->input_grab); | |
| 1830 #endif | |
| 1831 | |
| 1832 /* Return the final grab state */ | |
| 1833 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1834 mode -= SDL_GRAB_FULLSCREEN; | |
| 1835 } | |
| 1836 return(mode); | |
| 1837 } | |
| 1838 SDL_GrabMode SDL_WM_GrabInput(SDL_GrabMode mode) | |
| 1839 { | |
| 1840 SDL_VideoDevice *video = current_video; | |
| 1841 | |
|
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1842 /* If the video isn't initialized yet, we can't do anything */ |
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1843 if ( ! video ) { |
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1844 return SDL_GRAB_OFF; |
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1845 } |
| 0 | 1846 |
| 1847 /* Return the current mode on query */ | |
| 1848 if ( mode == SDL_GRAB_QUERY ) { | |
| 1849 mode = video->input_grab; | |
| 1850 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1851 mode -= SDL_GRAB_FULLSCREEN; | |
| 1852 } | |
| 1853 return(mode); | |
| 1854 } | |
| 1855 | |
| 1856 #ifdef DEBUG_GRAB | |
| 1857 printf("SDL_WM_GrabInput(%d) ... ", mode); | |
| 1858 #endif | |
| 1859 /* If the video surface is fullscreen, we always grab */ | |
| 1860 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1861 mode -= SDL_GRAB_FULLSCREEN; | |
| 1862 } | |
| 1863 if ( SDL_VideoSurface && (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { | |
| 1864 mode += SDL_GRAB_FULLSCREEN; | |
| 1865 } | |
| 1866 return(SDL_WM_GrabInputRaw(mode)); | |
| 1867 } | |
| 1868 static SDL_GrabMode SDL_WM_GrabInputOff(void) | |
| 1869 { | |
| 1870 SDL_GrabMode mode; | |
| 1871 | |
| 1872 /* First query the current grab state */ | |
| 1873 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 1874 | |
| 1875 /* Now explicitly turn off input grab */ | |
| 1876 SDL_WM_GrabInputRaw(SDL_GRAB_OFF); | |
| 1877 | |
| 1878 /* Return the old state */ | |
| 1879 return(mode); | |
| 1880 } | |
| 1881 | |
| 1882 /* | |
| 1883 * Iconify the window in window managed environments. | |
| 1884 * A successful iconification will result in an SDL_APPACTIVE loss event. | |
| 1885 */ | |
| 1886 int SDL_WM_IconifyWindow(void) | |
| 1887 { | |
| 1888 SDL_VideoDevice *video = current_video; | |
| 1889 SDL_VideoDevice *this = current_video; | |
| 1890 int retval; | |
| 1891 | |
| 1892 retval = 0; | |
| 1893 if ( video->IconifyWindow ) { | |
| 1894 retval = video->IconifyWindow(this); | |
| 1895 } | |
| 1896 return(retval); | |
| 1897 } | |
| 1898 | |
| 1899 /* | |
| 1900 * Toggle fullscreen mode | |
| 1901 */ | |
| 1902 int SDL_WM_ToggleFullScreen(SDL_Surface *surface) | |
| 1903 { | |
| 1904 SDL_VideoDevice *video = current_video; | |
| 1905 SDL_VideoDevice *this = current_video; | |
| 1906 int toggled; | |
| 1907 | |
| 1908 toggled = 0; | |
| 1909 if ( SDL_PublicSurface && (surface == SDL_PublicSurface) && | |
| 1910 video->ToggleFullScreen ) { | |
| 1911 if ( surface->flags & SDL_FULLSCREEN ) { | |
| 1912 toggled = video->ToggleFullScreen(this, 0); | |
| 1913 if ( toggled ) { | |
| 1914 SDL_VideoSurface->flags &= ~SDL_FULLSCREEN; | |
| 1915 SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; | |
| 1916 } | |
| 1917 } else { | |
| 1918 toggled = video->ToggleFullScreen(this, 1); | |
| 1919 if ( toggled ) { | |
| 1920 SDL_VideoSurface->flags |= SDL_FULLSCREEN; | |
| 1921 SDL_PublicSurface->flags |= SDL_FULLSCREEN; | |
| 1922 } | |
| 1923 } | |
| 1924 /* Double-check the grab state inside SDL_WM_GrabInput() */ | |
| 1925 if ( toggled ) { | |
| 1926 SDL_WM_GrabInput(video->input_grab); | |
| 1927 } | |
| 1928 } | |
| 1929 return(toggled); | |
| 1930 } | |
| 1931 | |
| 1932 /* | |
| 1933 * Get some platform dependent window manager information | |
| 1934 */ | |
| 1935 int SDL_GetWMInfo (SDL_SysWMinfo *info) | |
| 1936 { | |
| 1937 SDL_VideoDevice *video = current_video; | |
| 1938 SDL_VideoDevice *this = current_video; | |
| 1939 | |
| 1940 if ( video && video->GetWMInfo ) { | |
| 1941 return(video->GetWMInfo(this, info)); | |
| 1942 } else { | |
| 1943 return(0); | |
| 1944 } | |
| 1945 } |