Mercurial > sdl-ios-xcode
annotate src/video/SDL_video.c @ 1183:634d85aefc8c
Fixed bug reported here:
http://www.devolution.com/pipermail/sdl/2005-October/070998.html
--ryan.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Tue, 22 Nov 2005 09:59:42 +0000 |
| parents | fe1fa56dcbc6 |
| children | 19d8949b4584 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2004 (Happy New Year!)
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 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 | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* The high-level video driver subsystem */ | |
| 29 | |
| 30 #include <stdio.h> | |
| 31 #include <stdlib.h> | |
| 32 #include <string.h> | |
| 33 | |
| 34 #include "SDL.h" | |
| 35 #include "SDL_error.h" | |
| 36 #include "SDL_video.h" | |
| 37 #include "SDL_events.h" | |
| 38 #include "SDL_mutex.h" | |
| 39 #include "SDL_sysvideo.h" | |
| 40 #include "SDL_sysevents.h" | |
| 41 #include "SDL_blit.h" | |
| 42 #include "SDL_pixels_c.h" | |
| 43 #include "SDL_events_c.h" | |
| 44 #include "SDL_cursor_c.h" | |
| 45 | |
| 46 /* Available video drivers */ | |
| 47 static VideoBootStrap *bootstrap[] = { | |
|
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48 #ifdef ENABLE_QUARTZ |
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49 &QZ_bootstrap, |
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50 #endif |
| 0 | 51 #ifdef ENABLE_X11 |
| 52 &X11_bootstrap, | |
| 53 #endif | |
| 54 #ifdef ENABLE_DGA | |
| 55 &DGA_bootstrap, | |
| 56 #endif | |
|
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57 #ifdef ENABLE_NANOX |
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58 &NX_bootstrap, |
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59 #endif |
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60 #ifdef ENABLE_IPOD |
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61 &iPod_bootstrap, |
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62 #endif |
| 567 | 63 #ifdef ENABLE_QTOPIA |
| 64 &Qtopia_bootstrap, | |
| 65 #endif | |
| 0 | 66 #ifdef ENABLE_FBCON |
| 67 &FBCON_bootstrap, | |
| 68 #endif | |
|
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69 #ifdef ENABLE_DIRECTFB |
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70 &DirectFB_bootstrap, |
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71 #endif |
| 0 | 72 #ifdef ENABLE_PS2GS |
| 73 &PS2GS_bootstrap, | |
| 74 #endif | |
| 75 #ifdef ENABLE_GGI | |
| 76 &GGI_bootstrap, | |
| 77 #endif | |
|
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Added patches from FreeBSD ports
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78 #ifdef ENABLE_VGL |
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79 &VGL_bootstrap, |
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80 #endif |
| 0 | 81 #ifdef ENABLE_SVGALIB |
| 82 &SVGALIB_bootstrap, | |
| 83 #endif | |
| 84 #ifdef ENABLE_AALIB | |
|
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85 &AALIB_bootstrap, |
| 0 | 86 #endif |
| 87 #ifdef ENABLE_DIRECTX | |
| 88 &DIRECTX_bootstrap, | |
| 89 #endif | |
| 90 #ifdef ENABLE_WINDIB | |
| 91 &WINDIB_bootstrap, | |
| 92 #endif | |
| 93 #ifdef ENABLE_BWINDOW | |
| 94 &BWINDOW_bootstrap, | |
| 95 #endif | |
| 96 #ifdef ENABLE_TOOLBOX | |
| 97 &TOOLBOX_bootstrap, | |
| 98 #endif | |
| 99 #ifdef ENABLE_DRAWSPROCKET | |
| 100 &DSp_bootstrap, | |
| 101 #endif | |
| 102 #ifdef ENABLE_CYBERGRAPHICS | |
| 103 &CGX_bootstrap, | |
| 104 #endif | |
|
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105 #ifdef ENABLE_PHOTON |
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106 &ph_bootstrap, |
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107 #endif |
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108 #ifdef ENABLE_EPOC |
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109 &EPOC_bootstrap, |
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110 #endif |
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111 #ifdef ENABLE_XBIOS |
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112 &XBIOS_bootstrap, |
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113 #endif |
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114 #ifdef ENABLE_GEM |
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115 &GEM_bootstrap, |
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116 #endif |
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117 #ifdef ENABLE_PICOGUI |
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118 &PG_bootstrap, |
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119 #endif |
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120 #ifdef ENABLE_DC |
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121 &DC_bootstrap, |
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122 #endif |
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123 #ifdef ENABLE_RISCOS |
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124 &RISCOS_bootstrap, |
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125 #endif |
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126 #ifdef ENABLE_DUMMYVIDEO |
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127 &DUMMY_bootstrap, |
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128 #endif |
| 0 | 129 NULL |
| 130 }; | |
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131 |
| 0 | 132 SDL_VideoDevice *current_video = NULL; |
| 133 | |
| 134 /* Various local functions */ | |
| 135 int SDL_VideoInit(const char *driver_name, Uint32 flags); | |
| 136 void SDL_VideoQuit(void); | |
| 137 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect* rects); | |
| 138 | |
| 139 static SDL_GrabMode SDL_WM_GrabInputOff(void); | |
| 140 #ifdef HAVE_OPENGL | |
| 141 static int lock_count = 0; | |
| 142 #endif | |
| 143 | |
| 144 | |
| 145 /* | |
| 146 * Initialize the video and event subsystems -- determine native pixel format | |
| 147 */ | |
| 148 int SDL_VideoInit (const char *driver_name, Uint32 flags) | |
| 149 { | |
| 150 SDL_VideoDevice *video; | |
| 151 int index; | |
| 152 int i; | |
| 153 SDL_PixelFormat vformat; | |
| 154 Uint32 video_flags; | |
| 155 | |
| 156 /* Toggle the event thread flags, based on OS requirements */ | |
| 157 #if defined(MUST_THREAD_EVENTS) | |
| 158 flags |= SDL_INIT_EVENTTHREAD; | |
| 159 #elif defined(CANT_THREAD_EVENTS) | |
| 160 if ( (flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD ) { | |
| 161 SDL_SetError("OS doesn't support threaded events"); | |
| 162 return(-1); | |
| 163 } | |
| 164 #endif | |
| 165 | |
| 166 /* Check to make sure we don't overwrite 'current_video' */ | |
| 167 if ( current_video != NULL ) { | |
| 168 SDL_VideoQuit(); | |
| 169 } | |
| 170 | |
| 171 /* Select the proper video driver */ | |
| 172 index = 0; | |
| 173 video = NULL; | |
| 174 if ( driver_name != NULL ) { | |
| 175 #if 0 /* This will be replaced with a better driver selection API */ | |
| 176 if ( strrchr(driver_name, ':') != NULL ) { | |
| 177 index = atoi(strrchr(driver_name, ':')+1); | |
| 178 } | |
| 179 #endif | |
| 180 for ( i=0; bootstrap[i]; ++i ) { | |
| 181 if ( strncmp(bootstrap[i]->name, driver_name, | |
| 182 strlen(bootstrap[i]->name)) == 0 ) { | |
| 183 if ( bootstrap[i]->available() ) { | |
| 184 video = bootstrap[i]->create(index); | |
| 185 break; | |
| 186 } | |
| 187 } | |
| 188 } | |
| 189 } else { | |
| 190 for ( i=0; bootstrap[i]; ++i ) { | |
| 191 if ( bootstrap[i]->available() ) { | |
| 192 video = bootstrap[i]->create(index); | |
| 193 if ( video != NULL ) { | |
| 194 break; | |
| 195 } | |
| 196 } | |
| 197 } | |
| 198 } | |
| 199 if ( video == NULL ) { | |
| 200 SDL_SetError("No available video device"); | |
| 201 return(-1); | |
| 202 } | |
| 203 current_video = video; | |
| 204 current_video->name = bootstrap[i]->name; | |
| 205 | |
| 206 /* Do some basic variable initialization */ | |
| 207 video->screen = NULL; | |
| 208 video->shadow = NULL; | |
| 209 video->visible = NULL; | |
| 210 video->physpal = NULL; | |
| 211 video->gammacols = NULL; | |
| 212 video->gamma = NULL; | |
| 213 video->wm_title = NULL; | |
| 214 video->wm_icon = NULL; | |
| 215 video->offset_x = 0; | |
| 216 video->offset_y = 0; | |
| 217 memset(&video->info, 0, (sizeof video->info)); | |
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218 |
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219 video->displayformatalphapixel = NULL; |
| 0 | 220 |
| 221 /* Set some very sane GL defaults */ | |
| 222 video->gl_config.driver_loaded = 0; | |
| 223 video->gl_config.dll_handle = NULL; | |
| 224 video->gl_config.red_size = 5; | |
| 225 #if 1 /* This seems to work on more video cards, as a default */ | |
| 226 video->gl_config.green_size = 5; | |
| 227 #else | |
| 228 video->gl_config.green_size = 6; | |
| 229 #endif | |
| 230 video->gl_config.blue_size = 5; | |
| 231 video->gl_config.alpha_size = 0; | |
| 232 video->gl_config.buffer_size = 0; | |
| 233 video->gl_config.depth_size = 16; | |
| 234 video->gl_config.stencil_size = 0; | |
| 235 video->gl_config.double_buffer = 1; | |
| 236 video->gl_config.accum_red_size = 0; | |
| 237 video->gl_config.accum_green_size = 0; | |
| 238 video->gl_config.accum_blue_size = 0; | |
| 239 video->gl_config.accum_alpha_size = 0; | |
|
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240 video->gl_config.stereo = 0; |
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241 video->gl_config.multisamplebuffers = 0; |
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242 video->gl_config.multisamplesamples = 0; |
| 0 | 243 |
| 244 /* Initialize the video subsystem */ | |
| 245 memset(&vformat, 0, sizeof(vformat)); | |
| 246 if ( video->VideoInit(video, &vformat) < 0 ) { | |
| 247 SDL_VideoQuit(); | |
| 248 return(-1); | |
| 249 } | |
| 250 | |
| 251 /* Create a zero sized video surface of the appropriate format */ | |
| 252 video_flags = SDL_SWSURFACE; | |
| 253 SDL_VideoSurface = SDL_CreateRGBSurface(video_flags, 0, 0, | |
| 254 vformat.BitsPerPixel, | |
| 255 vformat.Rmask, vformat.Gmask, vformat.Bmask, 0); | |
| 256 if ( SDL_VideoSurface == NULL ) { | |
| 257 SDL_VideoQuit(); | |
| 258 return(-1); | |
| 259 } | |
| 260 SDL_PublicSurface = NULL; /* Until SDL_SetVideoMode() */ | |
| 261 | |
| 262 #if 0 /* Don't change the current palette - may be used by other programs. | |
| 263 * The application can't do anything with the display surface until | |
| 264 * a video mode has been set anyway. :) | |
| 265 */ | |
| 266 /* If we have a palettized surface, create a default palette */ | |
| 267 if ( SDL_VideoSurface->format->palette ) { | |
|
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268 SDL_PixelFormat *vf = SDL_VideoSurface->format; |
| 0 | 269 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 270 video->SetColors(video, | |
| 271 0, vf->palette->ncolors, vf->palette->colors); | |
| 272 } | |
| 273 #endif | |
| 274 video->info.vfmt = SDL_VideoSurface->format; | |
| 275 | |
| 276 /* Start the event loop */ | |
| 277 if ( SDL_StartEventLoop(flags) < 0 ) { | |
| 278 SDL_VideoQuit(); | |
| 279 return(-1); | |
| 280 } | |
| 281 SDL_CursorInit(flags & SDL_INIT_EVENTTHREAD); | |
| 282 | |
| 283 /* We're ready to go! */ | |
| 284 return(0); | |
| 285 } | |
| 286 | |
| 287 char *SDL_VideoDriverName(char *namebuf, int maxlen) | |
| 288 { | |
| 289 if ( current_video != NULL ) { | |
| 290 strncpy(namebuf, current_video->name, maxlen-1); | |
| 291 namebuf[maxlen-1] = '\0'; | |
| 292 return(namebuf); | |
| 293 } | |
| 294 return(NULL); | |
| 295 } | |
| 296 | |
| 297 /* | |
| 298 * Get the current display surface | |
| 299 */ | |
| 300 SDL_Surface *SDL_GetVideoSurface(void) | |
| 301 { | |
| 302 SDL_Surface *visible; | |
| 303 | |
| 304 visible = NULL; | |
| 305 if ( current_video ) { | |
| 306 visible = current_video->visible; | |
| 307 } | |
| 308 return(visible); | |
| 309 } | |
| 310 | |
| 311 /* | |
| 312 * Get the current information about the video hardware | |
| 313 */ | |
| 314 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
| 315 { | |
| 316 const SDL_VideoInfo *info; | |
| 317 | |
| 318 info = NULL; | |
| 319 if ( current_video ) { | |
| 320 info = ¤t_video->info; | |
| 321 } | |
| 322 return(info); | |
| 323 } | |
| 324 | |
| 325 /* | |
| 326 * Return a pointer to an array of available screen dimensions for the | |
| 327 * given format, sorted largest to smallest. Returns NULL if there are | |
| 328 * no dimensions available for a particular format, or (SDL_Rect **)-1 | |
| 329 * if any dimension is okay for the given format. If 'format' is NULL, | |
| 330 * the mode list will be for the format given by SDL_GetVideoInfo()->vfmt | |
| 331 */ | |
| 332 SDL_Rect ** SDL_ListModes (SDL_PixelFormat *format, Uint32 flags) | |
| 333 { | |
| 334 SDL_VideoDevice *video = current_video; | |
| 335 SDL_VideoDevice *this = current_video; | |
| 336 SDL_Rect **modes; | |
| 337 | |
| 338 modes = NULL; | |
| 339 if ( SDL_VideoSurface ) { | |
| 340 if ( format == NULL ) { | |
| 341 format = SDL_VideoSurface->format; | |
| 342 } | |
| 343 modes = video->ListModes(this, format, flags); | |
| 344 } | |
| 345 return(modes); | |
| 346 } | |
| 347 | |
| 348 /* | |
| 349 * Check to see if a particular video mode is supported. | |
| 350 * It returns 0 if the requested mode is not supported under any bit depth, | |
| 351 * or returns the bits-per-pixel of the closest available mode with the | |
| 352 * given width and height. If this bits-per-pixel is different from the | |
| 353 * one used when setting the video mode, SDL_SetVideoMode() will succeed, | |
| 354 * but will emulate the requested bits-per-pixel with a shadow surface. | |
| 355 */ | |
| 356 static Uint8 SDL_closest_depths[4][8] = { | |
| 357 /* 8 bit closest depth ordering */ | |
| 358 { 0, 8, 16, 15, 32, 24, 0, 0 }, | |
| 359 /* 15,16 bit closest depth ordering */ | |
| 360 { 0, 16, 15, 32, 24, 8, 0, 0 }, | |
| 361 /* 24 bit closest depth ordering */ | |
| 362 { 0, 24, 32, 16, 15, 8, 0, 0 }, | |
| 363 /* 32 bit closest depth ordering */ | |
| 364 { 0, 32, 16, 15, 24, 8, 0, 0 } | |
| 365 }; | |
| 366 | |
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367 |
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368 #ifdef macintosh /* MPW optimization bug? */ |
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369 #define NEGATIVE_ONE 0xFFFFFFFF |
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370 #else |
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371 #define NEGATIVE_ONE -1 |
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372 #endif |
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373 |
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374 int SDL_VideoModeOK (int width, int height, int bpp, Uint32 flags) |
| 0 | 375 { |
| 376 int table, b, i; | |
| 377 int supported; | |
| 378 SDL_PixelFormat format; | |
| 379 SDL_Rect **sizes; | |
| 380 | |
| 381 /* Currently 1 and 4 bpp are not supported */ | |
| 382 if ( bpp < 8 || bpp > 32 ) { | |
| 383 return(0); | |
| 384 } | |
|
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385 if ( (width <= 0) || (height <= 0) ) { |
| 0 | 386 return(0); |
| 387 } | |
| 388 | |
| 389 /* Search through the list valid of modes */ | |
| 390 memset(&format, 0, sizeof(format)); | |
| 391 supported = 0; | |
| 392 table = ((bpp+7)/8)-1; | |
| 393 SDL_closest_depths[table][0] = bpp; | |
| 394 SDL_closest_depths[table][7] = 0; | |
| 395 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 396 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 397 sizes = SDL_ListModes(&format, flags); | |
| 398 if ( sizes == (SDL_Rect **)0 ) { | |
| 399 /* No sizes supported at this bit-depth */ | |
| 400 continue; | |
| 401 } else | |
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402 if (sizes == (SDL_Rect **)NEGATIVE_ONE) { |
| 0 | 403 /* Any size supported at this bit-depth */ |
| 404 supported = 1; | |
| 405 continue; | |
|
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406 } else if (current_video->handles_any_size) { |
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407 /* Driver can center a smaller surface to simulate fullscreen */ |
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408 for ( i=0; sizes[i]; ++i ) { |
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409 if ((sizes[i]->w >= width) && (sizes[i]->h >= height)) { |
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410 supported = 1; /* this mode can fit the centered window. */ |
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411 break; |
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412 } |
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413 } |
| 0 | 414 } else |
| 415 for ( i=0; sizes[i]; ++i ) { | |
| 416 if ((sizes[i]->w == width) && (sizes[i]->h == height)) { | |
| 417 supported = 1; | |
| 418 break; | |
| 419 } | |
| 420 } | |
| 421 } | |
| 422 if ( supported ) { | |
| 423 --b; | |
| 424 return(SDL_closest_depths[table][b]); | |
| 425 } else { | |
| 426 return(0); | |
| 427 } | |
| 428 } | |
| 429 | |
| 430 /* | |
| 431 * Get the closest non-emulated video mode to the one requested | |
| 432 */ | |
| 433 static int SDL_GetVideoMode (int *w, int *h, int *BitsPerPixel, Uint32 flags) | |
| 434 { | |
| 435 int table, b, i; | |
| 436 int supported; | |
| 437 int native_bpp; | |
| 438 SDL_PixelFormat format; | |
| 439 SDL_Rect **sizes; | |
| 440 | |
|
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441 /* Check parameters */ |
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442 if ( *BitsPerPixel < 8 || *BitsPerPixel > 32 ) { |
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443 SDL_SetError("Invalid bits per pixel (range is {8...32})"); |
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444 return(0); |
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445 } |
|
430
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446 if ((*w <= 0) || (*h <= 0)) { |
|
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447 SDL_SetError("Invalid width or height"); |
|
430
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448 return(0); |
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449 } |
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450 |
| 0 | 451 /* Try the original video mode, get the closest depth */ |
| 452 native_bpp = SDL_VideoModeOK(*w, *h, *BitsPerPixel, flags); | |
| 453 if ( native_bpp == *BitsPerPixel ) { | |
| 454 return(1); | |
| 455 } | |
| 456 if ( native_bpp > 0 ) { | |
| 457 *BitsPerPixel = native_bpp; | |
| 458 return(1); | |
| 459 } | |
| 460 | |
| 461 /* No exact size match at any depth, look for closest match */ | |
| 462 memset(&format, 0, sizeof(format)); | |
| 463 supported = 0; | |
| 464 table = ((*BitsPerPixel+7)/8)-1; | |
| 465 SDL_closest_depths[table][0] = *BitsPerPixel; | |
| 466 SDL_closest_depths[table][7] = SDL_VideoSurface->format->BitsPerPixel; | |
| 467 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
|
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468 int best; |
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469 |
| 0 | 470 format.BitsPerPixel = SDL_closest_depths[table][b]; |
| 471 sizes = SDL_ListModes(&format, flags); | |
| 472 if ( sizes == (SDL_Rect **)0 ) { | |
| 473 /* No sizes supported at this bit-depth */ | |
| 474 continue; | |
| 475 } | |
|
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476 best=0; |
| 0 | 477 for ( i=0; sizes[i]; ++i ) { |
|
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478 /* Mode with both dimensions bigger or equal than asked ? */ |
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479 if ((sizes[i]->w >= *w) && (sizes[i]->h >= *h)) { |
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480 /* Mode with any dimension smaller or equal than current best ? */ |
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481 if ((sizes[i]->w <= sizes[best]->w) || (sizes[i]->h <= sizes[best]->h)) { |
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482 best=i; |
| 0 | 483 supported = 1; |
| 484 } | |
| 485 } | |
| 486 } | |
|
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487 if (supported) { |
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488 *w=sizes[best]->w; |
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489 *h=sizes[best]->h; |
| 0 | 490 *BitsPerPixel = SDL_closest_depths[table][b]; |
| 491 } | |
| 492 } | |
| 493 if ( ! supported ) { | |
| 494 SDL_SetError("No video mode large enough for %dx%d", *w, *h); | |
| 495 } | |
| 496 return(supported); | |
| 497 } | |
| 498 | |
| 499 /* This should probably go somewhere else -- like SDL_surface.c */ | |
| 500 static void SDL_ClearSurface(SDL_Surface *surface) | |
| 501 { | |
| 502 Uint32 black; | |
| 503 | |
| 504 black = SDL_MapRGB(surface->format, 0, 0, 0); | |
| 505 SDL_FillRect(surface, NULL, black); | |
| 506 if ((surface->flags&SDL_HWSURFACE) && (surface->flags&SDL_DOUBLEBUF)) { | |
| 507 SDL_Flip(surface); | |
| 508 SDL_FillRect(surface, NULL, black); | |
| 509 } | |
| 510 SDL_Flip(surface); | |
| 511 } | |
| 512 | |
| 513 /* | |
| 514 * Create a shadow surface suitable for fooling the app. :-) | |
| 515 */ | |
| 516 static void SDL_CreateShadowSurface(int depth) | |
| 517 { | |
| 518 Uint32 Rmask, Gmask, Bmask; | |
| 519 | |
| 520 /* Allocate the shadow surface */ | |
| 521 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 522 Rmask = (SDL_VideoSurface->format)->Rmask; | |
| 523 Gmask = (SDL_VideoSurface->format)->Gmask; | |
| 524 Bmask = (SDL_VideoSurface->format)->Bmask; | |
| 525 } else { | |
| 526 Rmask = Gmask = Bmask = 0; | |
| 527 } | |
| 528 SDL_ShadowSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
| 529 SDL_VideoSurface->w, SDL_VideoSurface->h, | |
| 530 depth, Rmask, Gmask, Bmask, 0); | |
| 531 if ( SDL_ShadowSurface == NULL ) { | |
| 532 return; | |
| 533 } | |
| 534 | |
| 535 /* 8-bit shadow surfaces report that they have exclusive palette */ | |
| 536 if ( SDL_ShadowSurface->format->palette ) { | |
| 537 SDL_ShadowSurface->flags |= SDL_HWPALETTE; | |
| 538 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 539 memcpy(SDL_ShadowSurface->format->palette->colors, | |
| 540 SDL_VideoSurface->format->palette->colors, | |
| 541 SDL_VideoSurface->format->palette->ncolors* | |
| 542 sizeof(SDL_Color)); | |
| 543 } else { | |
| 544 SDL_DitherColors( | |
| 545 SDL_ShadowSurface->format->palette->colors, depth); | |
| 546 } | |
| 547 } | |
| 548 | |
| 549 /* If the video surface is resizable, the shadow should say so */ | |
| 550 if ( (SDL_VideoSurface->flags & SDL_RESIZABLE) == SDL_RESIZABLE ) { | |
| 551 SDL_ShadowSurface->flags |= SDL_RESIZABLE; | |
| 552 } | |
| 553 /* If the video surface has no frame, the shadow should say so */ | |
| 554 if ( (SDL_VideoSurface->flags & SDL_NOFRAME) == SDL_NOFRAME ) { | |
| 555 SDL_ShadowSurface->flags |= SDL_NOFRAME; | |
| 556 } | |
| 557 /* If the video surface is fullscreen, the shadow should say so */ | |
| 558 if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 559 SDL_ShadowSurface->flags |= SDL_FULLSCREEN; | |
| 560 } | |
| 561 /* If the video surface is flippable, the shadow should say so */ | |
| 562 if ( (SDL_VideoSurface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 563 SDL_ShadowSurface->flags |= SDL_DOUBLEBUF; | |
| 564 } | |
| 565 return; | |
| 566 } | |
| 567 | |
|
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568 #ifdef __QNXNTO__ |
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569 #include <sys/neutrino.h> |
|
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570 #endif /* __QNXNTO__ */ |
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571 |
| 0 | 572 /* |
| 573 * Set the requested video mode, allocating a shadow buffer if necessary. | |
| 574 */ | |
| 575 SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags) | |
| 576 { | |
| 577 SDL_VideoDevice *video, *this; | |
| 578 SDL_Surface *prev_mode, *mode; | |
| 579 int video_w; | |
| 580 int video_h; | |
| 581 int video_bpp; | |
| 582 int is_opengl; | |
| 583 SDL_GrabMode saved_grab; | |
| 584 | |
| 585 /* Start up the video driver, if necessary.. | |
| 586 WARNING: This is the only function protected this way! | |
| 587 */ | |
| 588 if ( ! current_video ) { | |
| 589 if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE) < 0 ) { | |
| 590 return(NULL); | |
| 591 } | |
| 592 } | |
| 593 this = video = current_video; | |
| 594 | |
| 595 /* Default to the current video bpp */ | |
| 596 if ( bpp == 0 ) { | |
| 597 flags |= SDL_ANYFORMAT; | |
| 598 bpp = SDL_VideoSurface->format->BitsPerPixel; | |
| 599 } | |
| 600 | |
| 601 /* Get a good video mode, the closest one possible */ | |
| 602 video_w = width; | |
| 603 video_h = height; | |
| 604 video_bpp = bpp; | |
| 605 if ( ! SDL_GetVideoMode(&video_w, &video_h, &video_bpp, flags) ) { | |
| 606 return(NULL); | |
| 607 } | |
| 608 | |
| 609 /* Check the requested flags */ | |
| 610 /* There's no palette in > 8 bits-per-pixel mode */ | |
| 611 if ( video_bpp > 8 ) { | |
| 612 flags &= ~SDL_HWPALETTE; | |
| 613 } | |
| 614 #if 0 | |
| 615 if ( (flags&SDL_FULLSCREEN) != SDL_FULLSCREEN ) { | |
| 616 /* There's no windowed double-buffering */ | |
| 617 flags &= ~SDL_DOUBLEBUF; | |
| 618 } | |
| 619 #endif | |
| 620 if ( (flags&SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 621 /* Use hardware surfaces when double-buffering */ | |
| 622 flags |= SDL_HWSURFACE; | |
| 623 } | |
| 624 | |
| 625 is_opengl = ( ( flags & SDL_OPENGL ) == SDL_OPENGL ); | |
| 626 if ( is_opengl ) { | |
| 627 /* These flags are for 2D video modes only */ | |
| 628 flags &= ~(SDL_HWSURFACE|SDL_DOUBLEBUF); | |
| 629 } | |
| 630 | |
|
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Fixed stuck keys when changing the video mode
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631 /* Reset the keyboard here so event callbacks can run */ |
|
c3e9d4a623c1
Fixed stuck keys when changing the video mode
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diff
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632 SDL_ResetKeyboard(); |
|
460
a888b3ae31ff
Reset mouse state when changing video modes
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456
diff
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633 SDL_ResetMouse(); |
|
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diff
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|
634 |
| 0 | 635 /* Clean up any previous video mode */ |
| 636 if ( SDL_PublicSurface != NULL ) { | |
| 637 SDL_PublicSurface = NULL; | |
| 638 } | |
| 639 if ( SDL_ShadowSurface != NULL ) { | |
| 640 SDL_Surface *ready_to_go; | |
| 641 ready_to_go = SDL_ShadowSurface; | |
| 642 SDL_ShadowSurface = NULL; | |
| 643 SDL_FreeSurface(ready_to_go); | |
| 644 } | |
| 645 if ( video->physpal ) { | |
| 646 free(video->physpal->colors); | |
| 647 free(video->physpal); | |
| 648 video->physpal = NULL; | |
| 649 } | |
| 650 if( video->gammacols) { | |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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parents:
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diff
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|
651 free(video->gammacols); |
| 0 | 652 video->gammacols = NULL; |
| 653 } | |
| 654 | |
| 655 /* Save the previous grab state and turn off grab for mode switch */ | |
| 656 saved_grab = SDL_WM_GrabInputOff(); | |
| 657 | |
| 658 /* Try to set the video mode, along with offset and clipping */ | |
| 659 prev_mode = SDL_VideoSurface; | |
| 660 SDL_LockCursor(); | |
| 661 SDL_VideoSurface = NULL; /* In case it's freed by driver */ | |
| 662 mode = video->SetVideoMode(this, prev_mode,video_w,video_h,video_bpp,flags); | |
| 663 if ( mode ) { /* Prevent resize events from mode change */ | |
| 664 SDL_PrivateResize(mode->w, mode->h); | |
|
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Fix a crash if an OpenGL video mode can't be set.
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diff
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665 |
|
4d24d5a660a8
Fix a crash if an OpenGL video mode can't be set.
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diff
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666 /* Sam - If we asked for OpenGL mode, and didn't get it, fail */ |
|
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Fix a crash if an OpenGL video mode can't be set.
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|
667 if ( is_opengl && !(mode->flags & SDL_OPENGL) ) { |
|
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Fix a crash if an OpenGL video mode can't be set.
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668 mode = NULL; |
|
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50f5a29c6a17
Date: Sat, 10 Apr 2004 02:25:33 -0400
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669 SDL_SetError("OpenGL not available"); |
|
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670 } |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
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|
671 } |
| 0 | 672 /* |
| 673 * rcg11292000 | |
| 674 * If you try to set an SDL_OPENGL surface, and fail to find a | |
| 675 * matching visual, then the next call to SDL_SetVideoMode() | |
| 676 * will segfault, since we no longer point to a dummy surface, | |
| 677 * but rather NULL. | |
| 678 * Sam 11/29/00 | |
| 679 * WARNING, we need to make sure that the previous mode hasn't | |
| 680 * already been freed by the video driver. What do we do in | |
| 681 * that case? Should we call SDL_VideoInit() again? | |
| 682 */ | |
| 683 SDL_VideoSurface = (mode != NULL) ? mode : prev_mode; | |
| 684 | |
| 685 if ( (mode != NULL) && (!is_opengl) ) { | |
| 686 /* Sanity check */ | |
| 687 if ( (mode->w < width) || (mode->h < height) ) { | |
| 688 SDL_SetError("Video mode smaller than requested"); | |
| 689 return(NULL); | |
| 690 } | |
| 691 | |
| 692 /* If we have a palettized surface, create a default palette */ | |
| 693 if ( mode->format->palette ) { | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
694 SDL_PixelFormat *vf = mode->format; |
| 0 | 695 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 696 video->SetColors(this, 0, vf->palette->ncolors, | |
| 697 vf->palette->colors); | |
| 698 } | |
| 699 | |
| 700 /* Clear the surface to black */ | |
| 701 video->offset_x = 0; | |
| 702 video->offset_y = 0; | |
| 703 mode->offset = 0; | |
| 704 SDL_SetClipRect(mode, NULL); | |
| 705 SDL_ClearSurface(mode); | |
| 706 | |
| 707 /* Now adjust the offsets to match the desired mode */ | |
| 708 video->offset_x = (mode->w-width)/2; | |
| 709 video->offset_y = (mode->h-height)/2; | |
| 710 mode->offset = video->offset_y*mode->pitch + | |
| 711 video->offset_x*mode->format->BytesPerPixel; | |
| 712 #ifdef DEBUG_VIDEO | |
| 713 fprintf(stderr, | |
| 714 "Requested mode: %dx%dx%d, obtained mode %dx%dx%d (offset %d)\n", | |
| 715 width, height, bpp, | |
| 716 mode->w, mode->h, mode->format->BitsPerPixel, mode->offset); | |
| 717 #endif | |
| 718 mode->w = width; | |
| 719 mode->h = height; | |
| 720 SDL_SetClipRect(mode, NULL); | |
| 721 } | |
| 722 SDL_ResetCursor(); | |
| 723 SDL_UnlockCursor(); | |
| 724 | |
| 725 /* If we failed setting a video mode, return NULL... (Uh Oh!) */ | |
| 726 if ( mode == NULL ) { | |
| 727 return(NULL); | |
| 728 } | |
| 729 | |
| 730 /* If there is no window manager, set the SDL_NOFRAME flag */ | |
| 731 if ( ! video->info.wm_available ) { | |
| 732 mode->flags |= SDL_NOFRAME; | |
| 733 } | |
| 734 | |
| 735 /* Reset the mouse cursor and grab for new video mode */ | |
| 736 SDL_SetCursor(NULL); | |
| 737 if ( video->UpdateMouse ) { | |
| 738 video->UpdateMouse(this); | |
| 739 } | |
| 740 SDL_WM_GrabInput(saved_grab); | |
| 741 SDL_GetRelativeMouseState(NULL, NULL); /* Clear first large delta */ | |
| 742 | |
|
650
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|
743 #ifdef HAVE_OPENGL |
|
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|
744 /* Load GL symbols (before MakeCurrent, where we need glGetString). */ |
|
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We need to lookup the address of glGetString before calling GL_MakeCurrent(),
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|
745 if ( flags & (SDL_OPENGL | SDL_OPENGLBLIT) ) { |
|
910
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|
746 |
|
1032
c1c2efca4548
Date: Mon, 24 Jan 2005 21:37:56 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
747 #if defined(__QNXNTO__) && (_NTO_VERSION < 630) |
|
916
46916168361d
Date: Sun, 25 Jul 2004 23:10:03 +0800
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diff
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|
748 #define __SDL_NOGETPROCADDR__ |
|
989
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Patrice Mandin <patmandin@gmail.com>
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|
749 #elif defined(__MINT__) |
|
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|
750 #define __SDL_NOGETPROCADDR__ |
|
916
46916168361d
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|
751 #endif |
|
910
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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|
752 #ifdef __SDL_NOGETPROCADDR__ |
|
4ab6d1fd028f
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|
753 #define SDL_PROC(ret,func,params) video->func=func; |
|
663
8bedd6d61642
Date: Sat, 2 Aug 2003 16:22:51 +0300
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diff
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|
754 #else |
|
910
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|
755 #define SDL_PROC(ret,func,params) \ |
|
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756 do { \ |
|
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757 video->func = SDL_GL_GetProcAddress(#func); \ |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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|
758 if ( ! video->func ) { \ |
|
1141
fe1fa56dcbc6
If couldn't load a needed GL symbol in SDL_SetVideoMode(), report it more
Ryan C. Gordon <icculus@icculus.org>
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|
759 SDL_SetError("Couldn't load GL function %s: %s\n", #func, SDL_GetError()); \ |
|
910
4ab6d1fd028f
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760 return(NULL); \ |
|
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761 } \ |
|
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762 } while ( 0 ); |
|
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|
763 |
|
4ab6d1fd028f
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|
764 #endif /* __SDL_NOGETPROCADDR__ */ |
|
4ab6d1fd028f
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|
765 |
|
650
fe445b59d307
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|
766 #include "SDL_glfuncs.h" |
|
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767 #undef SDL_PROC |
|
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768 } |
|
910
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|
769 #endif /* HAVE_OPENGL */ |
|
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|
770 |
| 0 | 771 /* If we're running OpenGL, make the context current */ |
| 772 if ( (video->screen->flags & SDL_OPENGL) && | |
| 773 video->GL_MakeCurrent ) { | |
| 774 if ( video->GL_MakeCurrent(this) < 0 ) { | |
| 775 return(NULL); | |
| 776 } | |
| 777 } | |
| 778 | |
| 779 /* Set up a fake SDL surface for OpenGL "blitting" */ | |
| 780 if ( (flags & SDL_OPENGLBLIT) == SDL_OPENGLBLIT ) { | |
| 781 /* Load GL functions for performing the texture updates */ | |
| 782 #ifdef HAVE_OPENGL | |
| 783 | |
| 784 /* Create a software surface for blitting */ | |
| 785 #ifdef GL_VERSION_1_2 | |
| 786 /* If the implementation either supports the packed pixels | |
| 787 extension, or implements the core OpenGL 1.2 API, it will | |
| 788 support the GL_UNSIGNED_SHORT_5_6_5 texture format. | |
| 789 */ | |
| 790 if ( (bpp == 16) && | |
|
282
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Fixed SDL_OPENGLBLIT with OpenGL API newer than 1.2
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791 (strstr((const char *)video->glGetString(GL_EXTENSIONS), "GL_EXT_packed_pixels") || |
|
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|
792 (atof((const char *)video->glGetString(GL_VERSION)) >= 1.2f)) |
|
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793 ) { |
| 0 | 794 video->is_32bit = 0; |
| 795 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 796 flags, | |
| 797 width, | |
| 798 height, | |
| 799 16, | |
| 800 31 << 11, | |
| 801 63 << 5, | |
| 802 31, | |
| 803 0 | |
| 804 ); | |
| 805 } | |
| 806 else | |
| 807 #endif /* OpenGL 1.2 */ | |
| 808 { | |
| 809 video->is_32bit = 1; | |
| 810 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 811 flags, | |
| 812 width, | |
| 813 height, | |
| 814 32, | |
| 815 #if SDL_BYTEORDER == SDL_LIL_ENDIAN | |
| 816 0x000000FF, | |
| 817 0x0000FF00, | |
| 818 0x00FF0000, | |
| 819 0xFF000000 | |
| 820 #else | |
| 821 0xFF000000, | |
| 822 0x00FF0000, | |
| 823 0x0000FF00, | |
| 824 0x000000FF | |
| 825 #endif | |
| 826 ); | |
| 827 } | |
| 828 if ( ! SDL_VideoSurface ) { | |
| 829 return(NULL); | |
| 830 } | |
| 831 SDL_VideoSurface->flags = mode->flags | SDL_OPENGLBLIT; | |
| 832 | |
| 833 /* Free the original video mode surface (is this safe?) */ | |
| 834 SDL_FreeSurface(mode); | |
| 835 | |
|
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Sam Lantinga <slouken@libsdl.org>
parents:
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|
836 /* Set the surface completely opaque & white by default */ |
| 0 | 837 memset( SDL_VideoSurface->pixels, 255, SDL_VideoSurface->h * SDL_VideoSurface->pitch ); |
| 838 video->glGenTextures( 1, &video->texture ); | |
| 839 video->glBindTexture( GL_TEXTURE_2D, video->texture ); | |
| 840 video->glTexImage2D( | |
| 841 GL_TEXTURE_2D, | |
| 842 0, | |
| 843 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 844 256, | |
| 845 256, | |
| 846 0, | |
| 847 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 848 #ifdef GL_VERSION_1_2 | |
| 849 video->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 850 #else | |
| 851 GL_UNSIGNED_BYTE, | |
| 852 #endif | |
| 853 NULL); | |
| 854 | |
| 855 video->UpdateRects = SDL_GL_UpdateRectsLock; | |
| 856 #else | |
| 857 SDL_SetError("Somebody forgot to #define HAVE_OPENGL"); | |
| 858 return(NULL); | |
| 859 #endif | |
| 860 } | |
| 861 | |
| 862 /* Create a shadow surface if necessary */ | |
| 863 /* There are three conditions under which we create a shadow surface: | |
| 864 1. We need a particular bits-per-pixel that we didn't get. | |
| 865 2. We need a hardware palette and didn't get one. | |
| 866 3. We need a software surface and got a hardware surface. | |
| 867 */ | |
| 868 if ( !(SDL_VideoSurface->flags & SDL_OPENGL) && | |
| 869 ( | |
| 870 ( !(flags&SDL_ANYFORMAT) && | |
| 871 (SDL_VideoSurface->format->BitsPerPixel != bpp)) || | |
| 872 ( (flags&SDL_HWPALETTE) && | |
| 873 !(SDL_VideoSurface->flags&SDL_HWPALETTE)) || | |
| 874 /* If the surface is in hardware, video writes are visible | |
| 875 as soon as they are performed, so we need to buffer them | |
| 876 */ | |
| 877 ( ((flags&SDL_HWSURFACE) == SDL_SWSURFACE) && | |
|
580
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|
878 (SDL_VideoSurface->flags&SDL_HWSURFACE)) || |
|
be6495850a62
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|
879 ( (flags&SDL_DOUBLEBUF) && |
|
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If a double-buffered surface was requested, and a plain hardware surface
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diff
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|
880 (SDL_VideoSurface->flags&SDL_HWSURFACE) && |
|
be6495850a62
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diff
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|
881 !(SDL_VideoSurface->flags&SDL_DOUBLEBUF)) |
| 0 | 882 ) ) { |
| 883 SDL_CreateShadowSurface(bpp); | |
| 884 if ( SDL_ShadowSurface == NULL ) { | |
| 885 SDL_SetError("Couldn't create shadow surface"); | |
| 886 return(NULL); | |
| 887 } | |
| 888 SDL_PublicSurface = SDL_ShadowSurface; | |
| 889 } else { | |
| 890 SDL_PublicSurface = SDL_VideoSurface; | |
| 891 } | |
| 892 video->info.vfmt = SDL_VideoSurface->format; | |
| 893 | |
| 894 /* We're done! */ | |
| 895 return(SDL_PublicSurface); | |
| 896 } | |
| 897 | |
| 898 /* | |
| 899 * Convert a surface into the video pixel format. | |
| 900 */ | |
| 901 SDL_Surface * SDL_DisplayFormat (SDL_Surface *surface) | |
| 902 { | |
| 903 Uint32 flags; | |
| 904 | |
| 905 if ( ! SDL_PublicSurface ) { | |
| 906 SDL_SetError("No video mode has been set"); | |
| 907 return(NULL); | |
| 908 } | |
| 909 /* Set the flags appropriate for copying to display surface */ | |
|
313
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*** empty log message ***
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diff
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910 if (((SDL_PublicSurface->flags&SDL_HWSURFACE) == SDL_HWSURFACE) && current_video->info.blit_hw) |
|
306
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|
911 flags = SDL_HWSURFACE; |
|
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912 else |
|
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|
913 flags = SDL_SWSURFACE; |
| 0 | 914 #ifdef AUTORLE_DISPLAYFORMAT |
| 915 flags |= (surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA)); | |
| 916 flags |= SDL_RLEACCELOK; | |
| 917 #else | |
| 918 flags |= surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA|SDL_RLEACCELOK); | |
| 919 #endif | |
| 920 return(SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags)); | |
| 921 } | |
| 922 | |
| 923 /* | |
| 924 * Convert a surface into a format that's suitable for blitting to | |
| 925 * the screen, but including an alpha channel. | |
| 926 */ | |
| 927 SDL_Surface *SDL_DisplayFormatAlpha(SDL_Surface *surface) | |
| 928 { | |
| 929 SDL_PixelFormat *vf; | |
| 930 SDL_PixelFormat *format; | |
| 931 SDL_Surface *converted; | |
| 932 Uint32 flags; | |
| 933 /* default to ARGB8888 */ | |
| 934 Uint32 amask = 0xff000000; | |
| 935 Uint32 rmask = 0x00ff0000; | |
| 936 Uint32 gmask = 0x0000ff00; | |
| 937 Uint32 bmask = 0x000000ff; | |
| 938 | |
| 939 if ( ! SDL_PublicSurface ) { | |
| 940 SDL_SetError("No video mode has been set"); | |
| 941 return(NULL); | |
| 942 } | |
| 943 vf = SDL_PublicSurface->format; | |
| 944 | |
| 945 switch(vf->BytesPerPixel) { | |
| 946 case 2: | |
| 947 /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}. | |
| 948 For anything else (like ARGB4444) it doesn't matter | |
| 949 since we have no special code for it anyway */ | |
| 950 if ( (vf->Rmask == 0x1f) && | |
| 951 (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) { | |
| 952 rmask = 0xff; | |
| 953 bmask = 0xff0000; | |
| 954 } | |
| 955 break; | |
| 956 | |
| 957 case 3: | |
| 958 case 4: | |
| 959 /* Keep the video format, as long as the high 8 bits are | |
| 960 unused or alpha */ | |
| 961 if ( (vf->Rmask == 0xff) && (vf->Bmask == 0xff0000) ) { | |
| 962 rmask = 0xff; | |
| 963 bmask = 0xff0000; | |
| 964 } | |
| 965 break; | |
| 966 | |
| 967 default: | |
| 968 /* We have no other optimised formats right now. When/if a new | |
| 969 optimised alpha format is written, add the converter here */ | |
| 970 break; | |
| 971 } | |
| 972 format = SDL_AllocFormat(32, rmask, gmask, bmask, amask); | |
| 973 flags = SDL_PublicSurface->flags & SDL_HWSURFACE; | |
| 974 flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); | |
| 975 converted = SDL_ConvertSurface(surface, format, flags); | |
| 976 SDL_FreeFormat(format); | |
| 977 return(converted); | |
| 978 } | |
| 979 | |
| 980 /* | |
| 981 * Update a specific portion of the physical screen | |
| 982 */ | |
| 983 void SDL_UpdateRect(SDL_Surface *screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h) | |
| 984 { | |
| 985 if ( screen ) { | |
| 986 SDL_Rect rect; | |
| 987 | |
| 988 /* Perform some checking */ | |
| 989 if ( w == 0 ) | |
| 990 w = screen->w; | |
| 991 if ( h == 0 ) | |
| 992 h = screen->h; | |
| 993 if ( (int)(x+w) > screen->w ) | |
| 994 return; | |
| 995 if ( (int)(y+h) > screen->h ) | |
| 996 return; | |
| 997 | |
| 998 /* Fill the rectangle */ | |
| 999 rect.x = x; | |
| 1000 rect.y = y; | |
| 1001 rect.w = w; | |
| 1002 rect.h = h; | |
| 1003 SDL_UpdateRects(screen, 1, &rect); | |
| 1004 } | |
| 1005 } | |
| 1006 void SDL_UpdateRects (SDL_Surface *screen, int numrects, SDL_Rect *rects) | |
| 1007 { | |
| 1008 int i; | |
| 1009 SDL_VideoDevice *video = current_video; | |
| 1010 SDL_VideoDevice *this = current_video; | |
| 1011 | |
| 1012 if ( screen == SDL_ShadowSurface ) { | |
| 1013 /* Blit the shadow surface using saved mapping */ | |
|
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1014 SDL_Palette *pal = screen->format->palette; |
| 0 | 1015 SDL_Color *saved_colors = NULL; |
|
488
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|
1016 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1017 /* simulated 8bpp, use correct physical palette */ |
| 1018 saved_colors = pal->colors; | |
| 1019 if ( video->gammacols ) { | |
| 1020 /* gamma-corrected palette */ | |
| 1021 pal->colors = video->gammacols; | |
| 1022 } else if ( video->physpal ) { | |
| 1023 /* physical palette different from logical */ | |
| 1024 pal->colors = video->physpal->colors; | |
| 1025 } | |
| 1026 } | |
| 1027 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { | |
| 1028 SDL_LockCursor(); | |
| 1029 SDL_DrawCursor(SDL_ShadowSurface); | |
| 1030 for ( i=0; i<numrects; ++i ) { | |
| 1031 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1032 SDL_VideoSurface, &rects[i]); | |
| 1033 } | |
| 1034 SDL_EraseCursor(SDL_ShadowSurface); | |
| 1035 SDL_UnlockCursor(); | |
| 1036 } else { | |
| 1037 for ( i=0; i<numrects; ++i ) { | |
| 1038 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1039 SDL_VideoSurface, &rects[i]); | |
| 1040 } | |
| 1041 } | |
|
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|
1042 if ( saved_colors ) { |
| 0 | 1043 pal->colors = saved_colors; |
|
488
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Fixed missing cursor after shadow buffer flip (thanks Jan!)
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1044 } |
| 0 | 1045 |
| 1046 /* Fall through to video surface update */ | |
| 1047 screen = SDL_VideoSurface; | |
| 1048 } | |
| 1049 if ( screen == SDL_VideoSurface ) { | |
| 1050 /* Update the video surface */ | |
| 1051 if ( screen->offset ) { | |
| 1052 for ( i=0; i<numrects; ++i ) { | |
| 1053 rects[i].x += video->offset_x; | |
| 1054 rects[i].y += video->offset_y; | |
| 1055 } | |
| 1056 video->UpdateRects(this, numrects, rects); | |
| 1057 for ( i=0; i<numrects; ++i ) { | |
| 1058 rects[i].x -= video->offset_x; | |
| 1059 rects[i].y -= video->offset_y; | |
| 1060 } | |
| 1061 } else { | |
| 1062 video->UpdateRects(this, numrects, rects); | |
| 1063 } | |
| 1064 } | |
| 1065 } | |
| 1066 | |
| 1067 /* | |
| 1068 * Performs hardware double buffering, if possible, or a full update if not. | |
| 1069 */ | |
| 1070 int SDL_Flip(SDL_Surface *screen) | |
| 1071 { | |
| 1072 SDL_VideoDevice *video = current_video; | |
| 1073 /* Copy the shadow surface to the video surface */ | |
| 1074 if ( screen == SDL_ShadowSurface ) { | |
| 1075 SDL_Rect rect; | |
|
488
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Fixed missing cursor after shadow buffer flip (thanks Jan!)
Sam Lantinga <slouken@libsdl.org>
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1076 SDL_Palette *pal = screen->format->palette; |
| 0 | 1077 SDL_Color *saved_colors = NULL; |
|
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1078 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1079 /* simulated 8bpp, use correct physical palette */ |
| 1080 saved_colors = pal->colors; | |
| 1081 if ( video->gammacols ) { | |
| 1082 /* gamma-corrected palette */ | |
| 1083 pal->colors = video->gammacols; | |
| 1084 } else if ( video->physpal ) { | |
| 1085 /* physical palette different from logical */ | |
| 1086 pal->colors = video->physpal->colors; | |
| 1087 } | |
| 1088 } | |
| 1089 | |
| 1090 rect.x = 0; | |
| 1091 rect.y = 0; | |
| 1092 rect.w = screen->w; | |
| 1093 rect.h = screen->h; | |
|
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1094 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { |
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1095 SDL_LockCursor(); |
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1096 SDL_DrawCursor(SDL_ShadowSurface); |
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1097 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1098 SDL_VideoSurface, &rect); |
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1099 SDL_EraseCursor(SDL_ShadowSurface); |
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1100 SDL_UnlockCursor(); |
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1101 } else { |
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1102 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1103 SDL_VideoSurface, &rect); |
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1104 } |
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1105 if ( saved_colors ) { |
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1106 pal->colors = saved_colors; |
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1107 } |
| 0 | 1108 |
|
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1109 /* Fall through to video surface update */ |
| 0 | 1110 screen = SDL_VideoSurface; |
| 1111 } | |
| 1112 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 1113 SDL_VideoDevice *this = current_video; | |
| 1114 return(video->FlipHWSurface(this, SDL_VideoSurface)); | |
| 1115 } else { | |
| 1116 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1117 } | |
| 1118 return(0); | |
| 1119 } | |
| 1120 | |
| 1121 static void SetPalette_logical(SDL_Surface *screen, SDL_Color *colors, | |
| 1122 int firstcolor, int ncolors) | |
| 1123 { | |
|
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1124 SDL_Palette *pal = screen->format->palette; |
| 0 | 1125 SDL_Palette *vidpal; |
| 1126 | |
| 1127 if ( colors != (pal->colors + firstcolor) ) { | |
|
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1128 memcpy(pal->colors + firstcolor, colors, |
| 0 | 1129 ncolors * sizeof(*colors)); |
| 1130 } | |
| 1131 | |
| 1132 vidpal = SDL_VideoSurface->format->palette; | |
| 1133 if ( (screen == SDL_ShadowSurface) && vidpal ) { | |
|
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1134 /* |
| 0 | 1135 * This is a shadow surface, and the physical |
| 1136 * framebuffer is also indexed. Propagate the | |
| 1137 * changes to its logical palette so that | |
| 1138 * updates are always identity blits | |
| 1139 */ | |
| 1140 memcpy(vidpal->colors + firstcolor, colors, | |
| 1141 ncolors * sizeof(*colors)); | |
| 1142 } | |
| 1143 SDL_FormatChanged(screen); | |
| 1144 } | |
| 1145 | |
| 1146 static int SetPalette_physical(SDL_Surface *screen, | |
| 1147 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1148 { | |
| 1149 SDL_VideoDevice *video = current_video; | |
| 1150 int gotall = 1; | |
| 1151 | |
| 1152 if ( video->physpal ) { | |
| 1153 /* We need to copy the new colors, since we haven't | |
| 1154 * already done the copy in the logical set above. | |
| 1155 */ | |
| 1156 memcpy(video->physpal->colors + firstcolor, | |
| 1157 colors, ncolors * sizeof(*colors)); | |
| 1158 } | |
| 1159 if ( screen == SDL_ShadowSurface ) { | |
| 1160 if ( SDL_VideoSurface->flags & SDL_HWPALETTE ) { | |
| 1161 /* | |
| 1162 * The real screen is also indexed - set its physical | |
| 1163 * palette. The physical palette does not include the | |
| 1164 * gamma modification, we apply it directly instead, | |
| 1165 * but this only happens if we have hardware palette. | |
| 1166 */ | |
| 1167 screen = SDL_VideoSurface; | |
| 1168 } else { | |
| 1169 /* | |
| 1170 * The video surface is not indexed - invalidate any | |
| 1171 * active shadow-to-video blit mappings. | |
| 1172 */ | |
| 1173 if ( screen->map->dst == SDL_VideoSurface ) { | |
| 1174 SDL_InvalidateMap(screen->map); | |
| 1175 } | |
| 1176 if ( video->gamma ) { | |
| 1177 if( ! video->gammacols ) { | |
| 1178 SDL_Palette *pp = video->physpal; | |
| 1179 if(!pp) | |
| 1180 pp = screen->format->palette; | |
| 1181 video->gammacols = malloc(pp->ncolors | |
| 1182 * sizeof(SDL_Color)); | |
| 1183 SDL_ApplyGamma(video->gamma, | |
| 1184 pp->colors, | |
| 1185 video->gammacols, | |
| 1186 pp->ncolors); | |
| 1187 } else { | |
| 1188 SDL_ApplyGamma(video->gamma, colors, | |
| 1189 video->gammacols | |
| 1190 + firstcolor, | |
| 1191 ncolors); | |
| 1192 } | |
| 1193 } | |
| 1194 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1195 } | |
| 1196 } | |
| 1197 | |
| 1198 if ( screen == SDL_VideoSurface ) { | |
| 1199 SDL_Color gcolors[256]; | |
| 1200 | |
|
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1201 if ( video->gamma ) { |
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1202 SDL_ApplyGamma(video->gamma, colors, gcolors, ncolors); |
| 0 | 1203 colors = gcolors; |
| 1204 } | |
| 1205 gotall = video->SetColors(video, firstcolor, ncolors, colors); | |
| 1206 if ( ! gotall ) { | |
| 1207 /* The video flags shouldn't have SDL_HWPALETTE, and | |
| 1208 the video driver is responsible for copying back the | |
| 1209 correct colors into the video surface palette. | |
| 1210 */ | |
| 1211 ; | |
| 1212 } | |
| 1213 SDL_CursorPaletteChanged(); | |
| 1214 } | |
| 1215 return gotall; | |
| 1216 } | |
| 1217 | |
| 1218 /* | |
| 1219 * Set the physical and/or logical colormap of a surface: | |
| 1220 * Only the screen has a physical colormap. It determines what is actually | |
| 1221 * sent to the display. | |
| 1222 * The logical colormap is used to map blits to/from the surface. | |
| 1223 * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL | |
| 1224 * | |
| 1225 * Return nonzero if all colours were set as requested, or 0 otherwise. | |
| 1226 */ | |
| 1227 int SDL_SetPalette(SDL_Surface *screen, int which, | |
| 1228 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1229 { | |
|
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1230 SDL_Palette *pal; |
| 0 | 1231 int gotall; |
| 1232 int palsize; | |
| 1233 | |
| 34 | 1234 if ( ! current_video ) { |
| 1235 return 0; | |
| 1236 } | |
| 0 | 1237 if ( screen != SDL_PublicSurface ) { |
|
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1238 /* only screens have physical palettes */ |
|
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1239 which &= ~SDL_PHYSPAL; |
| 0 | 1240 } else if( (screen->flags & SDL_HWPALETTE) != SDL_HWPALETTE ) { |
|
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1241 /* hardware palettes required for split colormaps */ |
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1242 which |= SDL_PHYSPAL | SDL_LOGPAL; |
| 0 | 1243 } |
| 1244 | |
| 1245 /* Verify the parameters */ | |
| 1246 pal = screen->format->palette; | |
| 1247 if( !pal ) { | |
|
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1248 return 0; /* not a palettized surface */ |
| 0 | 1249 } |
| 1250 gotall = 1; | |
| 1251 palsize = 1 << screen->format->BitsPerPixel; | |
| 1252 if ( ncolors > (palsize - firstcolor) ) { | |
|
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1253 ncolors = (palsize - firstcolor); |
| 0 | 1254 gotall = 0; |
| 1255 } | |
| 1256 | |
| 1257 if ( which & SDL_LOGPAL ) { | |
| 1258 /* | |
| 1259 * Logical palette change: The actual screen isn't affected, | |
| 1260 * but the internal colormap is altered so that the | |
| 1261 * interpretation of the pixel values (for blits etc) is | |
| 1262 * changed. | |
| 1263 */ | |
|
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1264 SetPalette_logical(screen, colors, firstcolor, ncolors); |
| 0 | 1265 } |
| 1266 if ( which & SDL_PHYSPAL ) { | |
| 1267 SDL_VideoDevice *video = current_video; | |
|
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1268 /* |
| 0 | 1269 * Physical palette change: This doesn't affect the |
| 1270 * program's idea of what the screen looks like, but changes | |
| 1271 * its actual appearance. | |
| 1272 */ | |
|
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1273 if(!video) |
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1274 return gotall; /* video not yet initialized */ |
| 0 | 1275 if(!video->physpal && !(which & SDL_LOGPAL) ) { |
| 1276 /* Lazy physical palette allocation */ | |
|
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1277 int size; |
| 0 | 1278 SDL_Palette *pp = malloc(sizeof(*pp)); |
|
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1279 if ( !pp ) { |
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1280 return 0; |
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1281 } |
| 0 | 1282 current_video->physpal = pp; |
| 1283 pp->ncolors = pal->ncolors; | |
| 1284 size = pp->ncolors * sizeof(SDL_Color); | |
| 1285 pp->colors = malloc(size); | |
|
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1286 if ( !pp->colors ) { |
|
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1287 return 0; |
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1288 } |
| 0 | 1289 memcpy(pp->colors, pal->colors, size); |
| 1290 } | |
| 1291 if ( ! SetPalette_physical(screen, | |
| 1292 colors, firstcolor, ncolors) ) { | |
| 1293 gotall = 0; | |
| 1294 } | |
| 1295 } | |
| 1296 return gotall; | |
| 1297 } | |
| 1298 | |
| 1299 int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor, | |
| 1300 int ncolors) | |
| 1301 { | |
|
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1302 return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, |
| 0 | 1303 colors, firstcolor, ncolors); |
| 1304 } | |
| 1305 | |
| 1306 /* | |
| 1307 * Clean up the video subsystem | |
| 1308 */ | |
| 1309 void SDL_VideoQuit (void) | |
| 1310 { | |
| 1311 SDL_Surface *ready_to_go; | |
| 1312 | |
| 1313 if ( current_video ) { | |
| 1314 SDL_VideoDevice *video = current_video; | |
| 1315 SDL_VideoDevice *this = current_video; | |
| 1316 | |
| 1317 /* Halt event processing before doing anything else */ | |
| 1318 SDL_StopEventLoop(); | |
| 1319 | |
| 1320 /* Clean up allocated window manager items */ | |
| 1321 if ( SDL_PublicSurface ) { | |
| 1322 SDL_PublicSurface = NULL; | |
| 1323 } | |
| 1324 SDL_CursorQuit(); | |
| 1325 | |
| 1326 /* Just in case... */ | |
| 1327 SDL_WM_GrabInputOff(); | |
| 1328 | |
| 1329 /* Clean up the system video */ | |
| 1330 video->VideoQuit(this); | |
| 1331 | |
| 1332 /* Free any lingering surfaces */ | |
| 1333 ready_to_go = SDL_ShadowSurface; | |
| 1334 SDL_ShadowSurface = NULL; | |
| 1335 SDL_FreeSurface(ready_to_go); | |
| 1336 if ( SDL_VideoSurface != NULL ) { | |
| 1337 ready_to_go = SDL_VideoSurface; | |
| 1338 SDL_VideoSurface = NULL; | |
| 1339 SDL_FreeSurface(ready_to_go); | |
| 1340 } | |
| 1341 SDL_PublicSurface = NULL; | |
| 1342 | |
| 1343 /* Clean up miscellaneous memory */ | |
| 1344 if ( video->physpal ) { | |
| 1345 free(video->physpal->colors); | |
| 1346 free(video->physpal); | |
| 1347 video->physpal = NULL; | |
| 1348 } | |
| 1349 if ( video->gammacols ) { | |
| 1350 free(video->gammacols); | |
| 1351 video->gammacols = NULL; | |
| 1352 } | |
| 1353 if ( video->gamma ) { | |
| 1354 free(video->gamma); | |
| 1355 video->gamma = NULL; | |
| 1356 } | |
|
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1357 if ( video->wm_title != NULL ) { |
|
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1358 free(video->wm_title); |
|
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1359 video->wm_title = NULL; |
| 0 | 1360 } |
|
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1361 if ( video->wm_icon != NULL ) { |
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1362 free(video->wm_icon); |
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1363 video->wm_icon = NULL; |
| 0 | 1364 } |
| 1365 | |
| 1366 /* Finish cleaning up video subsystem */ | |
| 1367 video->free(this); | |
| 1368 current_video = NULL; | |
| 1369 } | |
| 1370 return; | |
| 1371 } | |
| 1372 | |
| 1373 /* Load the GL driver library */ | |
| 1374 int SDL_GL_LoadLibrary(const char *path) | |
| 1375 { | |
| 1376 SDL_VideoDevice *video = current_video; | |
| 1377 SDL_VideoDevice *this = current_video; | |
| 1378 int retval; | |
| 1379 | |
| 1380 retval = -1; | |
|
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1381 if ( video == NULL ) { |
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1382 SDL_SetError("Video subsystem has not been initialized"); |
| 0 | 1383 } else { |
|
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1384 if ( video->GL_LoadLibrary ) { |
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1385 retval = video->GL_LoadLibrary(this, path); |
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1386 } else { |
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1387 SDL_SetError("No dynamic GL support in video driver"); |
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1388 } |
| 0 | 1389 } |
| 1390 return(retval); | |
| 1391 } | |
| 1392 | |
| 1393 void *SDL_GL_GetProcAddress(const char* proc) | |
| 1394 { | |
| 1395 SDL_VideoDevice *video = current_video; | |
| 1396 SDL_VideoDevice *this = current_video; | |
| 1397 void *func; | |
| 1398 | |
| 1399 func = NULL; | |
| 1400 if ( video->GL_GetProcAddress ) { | |
| 1401 if ( video->gl_config.driver_loaded ) { | |
| 1402 func = video->GL_GetProcAddress(this, proc); | |
| 1403 } else { | |
| 1404 SDL_SetError("No GL driver has been loaded"); | |
| 1405 } | |
| 1406 } else { | |
| 1407 SDL_SetError("No dynamic GL support in video driver"); | |
| 1408 } | |
| 1409 return func; | |
| 1410 } | |
| 1411 | |
| 1412 /* Set the specified GL attribute for setting up a GL video mode */ | |
| 1413 int SDL_GL_SetAttribute( SDL_GLattr attr, int value ) | |
| 1414 { | |
| 1415 int retval; | |
| 1416 SDL_VideoDevice *video = current_video; | |
| 1417 | |
| 1418 retval = 0; | |
| 1419 switch (attr) { | |
| 1420 case SDL_GL_RED_SIZE: | |
| 1421 video->gl_config.red_size = value; | |
| 1422 break; | |
| 1423 case SDL_GL_GREEN_SIZE: | |
| 1424 video->gl_config.green_size = value; | |
| 1425 break; | |
| 1426 case SDL_GL_BLUE_SIZE: | |
| 1427 video->gl_config.blue_size = value; | |
| 1428 break; | |
| 1429 case SDL_GL_ALPHA_SIZE: | |
| 1430 video->gl_config.alpha_size = value; | |
| 1431 break; | |
| 1432 case SDL_GL_DOUBLEBUFFER: | |
| 1433 video->gl_config.double_buffer = value; | |
| 1434 break; | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1435 case SDL_GL_BUFFER_SIZE: |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1436 video->gl_config.buffer_size = value; |
| 0 | 1437 break; |
| 1438 case SDL_GL_DEPTH_SIZE: | |
| 1439 video->gl_config.depth_size = value; | |
| 1440 break; | |
| 1441 case SDL_GL_STENCIL_SIZE: | |
| 1442 video->gl_config.stencil_size = value; | |
| 1443 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1444 case SDL_GL_ACCUM_RED_SIZE: |
| 0 | 1445 video->gl_config.accum_red_size = value; |
| 1446 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1447 case SDL_GL_ACCUM_GREEN_SIZE: |
| 0 | 1448 video->gl_config.accum_green_size = value; |
| 1449 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1450 case SDL_GL_ACCUM_BLUE_SIZE: |
| 0 | 1451 video->gl_config.accum_blue_size = value; |
| 1452 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1453 case SDL_GL_ACCUM_ALPHA_SIZE: |
| 0 | 1454 video->gl_config.accum_alpha_size = value; |
| 1455 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1456 case SDL_GL_STEREO: |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1457 video->gl_config.stereo = value; |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1458 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
655
diff
changeset
|
1459 case SDL_GL_MULTISAMPLEBUFFERS: |
|
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
655
diff
changeset
|
1460 video->gl_config.multisamplebuffers = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents:
650
diff
changeset
|
1461 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
655
diff
changeset
|
1462 case SDL_GL_MULTISAMPLESAMPLES: |
|
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
655
diff
changeset
|
1463 video->gl_config.multisamplesamples = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents:
650
diff
changeset
|
1464 break; |
| 0 | 1465 default: |
| 1466 SDL_SetError("Unknown OpenGL attribute"); | |
| 1467 retval = -1; | |
| 1468 break; | |
| 1469 } | |
| 1470 return(retval); | |
| 1471 } | |
| 1472 | |
| 1473 /* Retrieve an attribute value from the windowing system. */ | |
| 1474 int SDL_GL_GetAttribute(SDL_GLattr attr, int* value) | |
| 1475 { | |
| 1476 int retval = -1; | |
| 1477 SDL_VideoDevice* video = current_video; | |
| 1478 SDL_VideoDevice* this = current_video; | |
| 1479 | |
| 1480 if ( video->GL_GetAttribute ) { | |
| 1481 retval = this->GL_GetAttribute(this, attr, value); | |
|
11
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1482 } else { |
|
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1483 *value = 0; |
|
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1484 SDL_SetError("GL_GetAttribute not supported"); |
| 0 | 1485 } |
| 1486 return retval; | |
| 1487 } | |
| 1488 | |
| 1489 /* Perform a GL buffer swap on the current GL context */ | |
| 1490 void SDL_GL_SwapBuffers(void) | |
| 1491 { | |
| 1492 SDL_VideoDevice *video = current_video; | |
| 1493 SDL_VideoDevice *this = current_video; | |
| 1494 | |
| 1495 if ( video->screen->flags & SDL_OPENGL ) { | |
|
266
c6abdda2f666
Added QNX cleanups by Mike Gorchak (thanks!)
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
1496 video->GL_SwapBuffers(this); |
|
c6abdda2f666
Added QNX cleanups by Mike Gorchak (thanks!)
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
1497 } else { |
|
c6abdda2f666
Added QNX cleanups by Mike Gorchak (thanks!)
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
1498 SDL_SetError("OpenGL video mode has not been set"); |
| 0 | 1499 } |
| 1500 } | |
| 1501 | |
| 1502 /* Update rects with locking */ | |
| 1503 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect *rects) | |
| 1504 { | |
| 1505 SDL_GL_Lock(); | |
| 1506 SDL_GL_UpdateRects(numrects, rects); | |
| 1507 SDL_GL_Unlock(); | |
| 1508 } | |
| 1509 | |
| 1510 /* Update rects without state setting and changing (the caller is responsible for it) */ | |
| 1511 void SDL_GL_UpdateRects(int numrects, SDL_Rect *rects) | |
| 1512 { | |
| 1513 #ifdef HAVE_OPENGL | |
| 1514 SDL_VideoDevice *this = current_video; | |
| 1515 SDL_Rect update, tmp; | |
| 1516 int x, y, i; | |
| 1517 | |
| 1518 for ( i = 0; i < numrects; i++ ) | |
| 1519 { | |
| 1520 tmp.y = rects[i].y; | |
| 1521 tmp.h = rects[i].h; | |
| 1522 for ( y = 0; y <= rects[i].h / 256; y++ ) | |
| 1523 { | |
| 1524 tmp.x = rects[i].x; | |
| 1525 tmp.w = rects[i].w; | |
| 1526 for ( x = 0; x <= rects[i].w / 256; x++ ) | |
| 1527 { | |
| 1528 update.x = tmp.x; | |
| 1529 update.y = tmp.y; | |
| 1530 update.w = tmp.w; | |
| 1531 update.h = tmp.h; | |
| 1532 | |
| 1533 if ( update.w > 256 ) | |
| 1534 update.w = 256; | |
| 1535 | |
| 1536 if ( update.h > 256 ) | |
| 1537 update.h = 256; | |
| 1538 | |
| 1539 this->glFlush(); | |
| 1540 this->glTexSubImage2D( | |
| 1541 GL_TEXTURE_2D, | |
| 1542 0, | |
| 1543 0, | |
| 1544 0, | |
| 1545 update.w, | |
| 1546 update.h, | |
| 1547 this->is_32bit? GL_RGBA : GL_RGB, | |
| 1548 #ifdef GL_VERSION_1_2 | |
| 1549 this->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 1550 #else | |
| 1551 GL_UNSIGNED_BYTE, | |
| 1552 #endif | |
| 1553 (Uint8 *)this->screen->pixels + | |
| 1554 this->screen->format->BytesPerPixel * update.x + | |
| 1555 update.y * this->screen->pitch ); | |
| 1556 | |
| 1557 this->glFlush(); | |
| 1558 /* | |
| 1559 * Note the parens around the function name: | |
| 1560 * This is because some OpenGL implementations define glTexCoord etc | |
| 1561 * as macros, and we don't want them expanded here. | |
| 1562 */ | |
| 1563 this->glBegin(GL_TRIANGLE_STRIP); | |
| 1564 (this->glTexCoord2f)( 0.0, 0.0 ); | |
| 1565 (this->glVertex2i)( update.x, update.y ); | |
| 1566 (this->glTexCoord2f)( (float)(update.w / 256.0), 0.0 ); | |
| 1567 (this->glVertex2i)( update.x + update.w, update.y ); | |
| 1568 (this->glTexCoord2f)( 0.0, (float)(update.h / 256.0) ); | |
| 1569 (this->glVertex2i)( update.x, update.y + update.h ); | |
| 1570 (this->glTexCoord2f)( (float)(update.w / 256.0), (float)(update.h / 256.0) ); | |
| 1571 (this->glVertex2i)( update.x + update.w , update.y + update.h ); | |
| 1572 this->glEnd(); | |
| 1573 | |
| 1574 tmp.x += 256; | |
| 1575 tmp.w -= 256; | |
| 1576 } | |
| 1577 tmp.y += 256; | |
| 1578 tmp.h -= 256; | |
| 1579 } | |
| 1580 } | |
| 1581 #endif | |
| 1582 } | |
| 1583 | |
| 1584 /* Lock == save current state */ | |
| 1585 void SDL_GL_Lock() | |
| 1586 { | |
| 1587 #ifdef HAVE_OPENGL | |
| 1588 lock_count--; | |
| 1589 if (lock_count==-1) | |
| 1590 { | |
| 1591 SDL_VideoDevice *this = current_video; | |
| 1592 | |
| 1593 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
|
1594 #ifdef GL_CLIENT_PIXEL_STORE_BIT |
| 0 | 1595 this->glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT ); |
|
125
0ae324925dd7
Fix build when GL_CLIENT_PIXEL_STORE_BIT is not defined
Sam Lantinga <slouken@libsdl.org>
parents:
75
diff
changeset
|
1596 #endif |
| 0 | 1597 |
| 1598 this->glEnable(GL_TEXTURE_2D); | |
| 1599 this->glEnable(GL_BLEND); | |
| 1600 this->glDisable(GL_FOG); | |
| 1601 this->glDisable(GL_ALPHA_TEST); | |
| 1602 this->glDisable(GL_DEPTH_TEST); | |
| 1603 this->glDisable(GL_SCISSOR_TEST); | |
| 1604 this->glDisable(GL_STENCIL_TEST); | |
| 1605 this->glDisable(GL_CULL_FACE); | |
| 1606 | |
| 1607 this->glBindTexture( GL_TEXTURE_2D, this->texture ); | |
| 1608 this->glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); | |
| 1609 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); | |
| 1610 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); | |
| 1611 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); | |
| 1612 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT ); | |
| 1613 | |
| 1614 this->glPixelStorei( GL_UNPACK_ROW_LENGTH, this->screen->pitch / this->screen->format->BytesPerPixel ); | |
| 1615 this->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
| 1616 (this->glColor4f)(1.0, 1.0, 1.0, 1.0); /* Solaris workaround */ | |
| 1617 | |
| 1618 this->glViewport(0, 0, this->screen->w, this->screen->h); | |
| 1619 this->glMatrixMode(GL_PROJECTION); | |
| 1620 this->glPushMatrix(); | |
| 1621 this->glLoadIdentity(); | |
| 1622 | |
| 1623 this->glOrtho(0.0, (GLdouble) this->screen->w, (GLdouble) this->screen->h, 0.0, 0.0, 1.0); | |
| 1624 | |
| 1625 this->glMatrixMode(GL_MODELVIEW); | |
| 1626 this->glPushMatrix(); | |
| 1627 this->glLoadIdentity(); | |
| 1628 } | |
| 1629 #endif | |
| 1630 } | |
| 1631 | |
| 1632 /* Unlock == restore saved state */ | |
| 1633 void SDL_GL_Unlock() | |
| 1634 { | |
| 1635 #ifdef HAVE_OPENGL | |
| 1636 lock_count++; | |
| 1637 if (lock_count==0) | |
| 1638 { | |
| 1639 SDL_VideoDevice *this = current_video; | |
| 1640 | |
| 1641 this->glPopMatrix(); | |
| 1642 this->glMatrixMode(GL_PROJECTION); | |
| 1643 this->glPopMatrix(); | |
| 1644 | |
| 1645 this->glPopClientAttrib(); | |
| 1646 this->glPopAttrib(); | |
| 1647 } | |
| 1648 #endif | |
| 1649 } | |
| 1650 | |
| 1651 /* | |
| 1652 * Sets/Gets the title and icon text of the display window, if any. | |
| 1653 */ | |
| 1654 void SDL_WM_SetCaption (const char *title, const char *icon) | |
| 1655 { | |
| 1656 SDL_VideoDevice *video = current_video; | |
| 1657 SDL_VideoDevice *this = current_video; | |
| 1658 | |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1659 if ( video ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1660 if ( title ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1661 if ( video->wm_title ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1662 free(video->wm_title); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1663 } |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1664 video->wm_title = (char *)malloc(strlen(title)+1); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1665 if ( video->wm_title != NULL ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1666 strcpy(video->wm_title, title); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1667 } |
| 0 | 1668 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1669 if ( icon ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1670 if ( video->wm_icon ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1671 free(video->wm_icon); |
|
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_icon = (char *)malloc(strlen(icon)+1); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1674 if ( video->wm_icon != NULL ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1675 strcpy(video->wm_icon, icon); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1676 } |
| 0 | 1677 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1678 if ( (title || icon) && (video->SetCaption != NULL) ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1679 video->SetCaption(this, video->wm_title,video->wm_icon); |
| 0 | 1680 } |
| 1681 } | |
| 1682 } | |
| 1683 void SDL_WM_GetCaption (char **title, char **icon) | |
| 1684 { | |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1685 SDL_VideoDevice *video = current_video; |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1686 |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1687 if ( video ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1688 if ( title ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1689 *title = video->wm_title; |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1690 } |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1691 if ( icon ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1692 *icon = video->wm_icon; |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1693 } |
| 0 | 1694 } |
| 1695 } | |
| 1696 | |
|
541
796f2fe699be
Support 1-bit alpha on surfaces passed to SDL_WM_SetIcon() (thanks Glenn!)
Sam Lantinga <slouken@libsdl.org>
parents:
509
diff
changeset
|
1697 /* Utility function used by SDL_WM_SetIcon(); |
|
796f2fe699be
Support 1-bit alpha on surfaces passed to SDL_WM_SetIcon() (thanks Glenn!)
Sam Lantinga <slouken@libsdl.org>
parents:
509
diff
changeset
|
1698 * flags & 1 for color key, flags & 2 for alpha channel. */ |
|
796f2fe699be
Support 1-bit alpha on surfaces passed to SDL_WM_SetIcon() (thanks Glenn!)
Sam Lantinga <slouken@libsdl.org>
parents:
509
diff
changeset
|
1699 static void CreateMaskFromColorKeyOrAlpha(SDL_Surface *icon, Uint8 *mask, int flags) |
| 0 | 1700 { |
| 1701 int x, y; | |
| 1702 Uint32 colorkey; | |
| 1703 #define SET_MASKBIT(icon, x, y, mask) \ | |
| 1704 mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8))) | |
| 1705 | |
| 1706 colorkey = icon->format->colorkey; | |
| 1707 switch (icon->format->BytesPerPixel) { | |
| 1708 case 1: { Uint8 *pixels; | |
| 1709 for ( y=0; y<icon->h; ++y ) { | |
| 1710 pixels = (Uint8 *)icon->pixels + y*icon->pitch; | |
| 1711 for ( x=0; x<icon->w; ++x ) { | |
| 1712 if ( *pixels++ == colorkey ) { | |
| 1713 SET_MASKBIT(icon, x, y, mask); | |
| 1714 } | |
| 1715 } | |
| 1716 } | |
| 1717 } | |
| 1718 break; | |
| 1719 | |
| 1720 case 2: { Uint16 *pixels; | |
| 1721 for ( y=0; y<icon->h; ++y ) { | |
| 1722 pixels = (Uint16 *)icon->pixels + | |
| 1723 y*icon->pitch/2; | |
| 1724 for ( x=0; x<icon->w; ++x ) { | |
|
541
796f2fe699be
Support 1-bit alpha on surfaces passed to SDL_WM_SetIcon() (thanks Glenn!)
Sam Lantinga <slouken@libsdl.org>
parents:
509
diff
changeset
|
1725 if ( (flags & 1) && *pixels == colorkey ) { |
|
796f2fe699be
Support 1-bit alpha on surfaces passed to SDL_WM_SetIcon() (thanks Glenn!)
Sam Lantinga <slouken@libsdl.org>
parents:
509
diff
changeset
|
1726 SET_MASKBIT(icon, x, y, mask); |
|
796f2fe699be
Support 1-bit alpha on surfaces passed to SDL_WM_SetIcon() (thanks Glenn!)
Sam Lantinga <slouken@libsdl.org>
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1727 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1728 SET_MASKBIT(icon, x, y, mask); |
| 1729 } | |
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1730 pixels++; |
| 0 | 1731 } |
| 1732 } | |
| 1733 } | |
| 1734 break; | |
| 1735 | |
| 1736 case 4: { Uint32 *pixels; | |
| 1737 for ( y=0; y<icon->h; ++y ) { | |
| 1738 pixels = (Uint32 *)icon->pixels + | |
| 1739 y*icon->pitch/4; | |
| 1740 for ( x=0; x<icon->w; ++x ) { | |
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1741 if ( (flags & 1) && *pixels == colorkey ) { |
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1742 SET_MASKBIT(icon, x, y, mask); |
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1743 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1744 SET_MASKBIT(icon, x, y, mask); |
| 1745 } | |
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1746 pixels++; |
| 0 | 1747 } |
| 1748 } | |
| 1749 } | |
| 1750 break; | |
| 1751 } | |
| 1752 } | |
| 1753 | |
| 1754 /* | |
| 1755 * Sets the window manager icon for the display window. | |
| 1756 */ | |
| 1757 void SDL_WM_SetIcon (SDL_Surface *icon, Uint8 *mask) | |
| 1758 { | |
| 1759 SDL_VideoDevice *video = current_video; | |
| 1760 SDL_VideoDevice *this = current_video; | |
| 1761 | |
| 1762 if ( icon && video->SetIcon ) { | |
| 1763 /* Generate a mask if necessary, and create the icon! */ | |
| 1764 if ( mask == NULL ) { | |
| 1765 int mask_len = icon->h*(icon->w+7)/8; | |
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1766 int flags = 0; |
| 0 | 1767 mask = (Uint8 *)malloc(mask_len); |
| 1768 if ( mask == NULL ) { | |
| 1769 return; | |
| 1770 } | |
| 1771 memset(mask, ~0, mask_len); | |
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1772 if ( icon->flags & SDL_SRCCOLORKEY ) flags |= 1; |
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1773 if ( icon->flags & SDL_SRCALPHA ) flags |= 2; |
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1774 if( flags ) { |
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1775 CreateMaskFromColorKeyOrAlpha(icon, mask, flags); |
| 0 | 1776 } |
| 1777 video->SetIcon(video, icon, mask); | |
| 1778 free(mask); | |
| 1779 } else { | |
| 1780 video->SetIcon(this, icon, mask); | |
| 1781 } | |
| 1782 } | |
| 1783 } | |
| 1784 | |
| 1785 /* | |
| 1786 * Grab or ungrab the keyboard and mouse input. | |
| 1787 * This function returns the final grab mode after calling the | |
| 1788 * driver dependent function. | |
| 1789 */ | |
| 1790 static SDL_GrabMode SDL_WM_GrabInputRaw(SDL_GrabMode mode) | |
| 1791 { | |
| 1792 SDL_VideoDevice *video = current_video; | |
| 1793 SDL_VideoDevice *this = current_video; | |
| 1794 | |
| 1795 /* Only do something if we have support for grabs */ | |
| 1796 if ( video->GrabInput == NULL ) { | |
| 1797 return(video->input_grab); | |
| 1798 } | |
| 1799 | |
| 1800 /* If the final grab mode if off, only then do we actually grab */ | |
| 1801 #ifdef DEBUG_GRAB | |
| 1802 printf("SDL_WM_GrabInputRaw(%d) ... ", mode); | |
| 1803 #endif | |
| 1804 if ( mode == SDL_GRAB_OFF ) { | |
| 1805 if ( video->input_grab != SDL_GRAB_OFF ) { | |
| 1806 mode = video->GrabInput(this, mode); | |
| 1807 } | |
| 1808 } else { | |
| 1809 if ( video->input_grab == SDL_GRAB_OFF ) { | |
| 1810 mode = video->GrabInput(this, mode); | |
| 1811 } | |
| 1812 } | |
| 1813 if ( mode != video->input_grab ) { | |
| 1814 video->input_grab = mode; | |
| 1815 if ( video->CheckMouseMode ) { | |
| 1816 video->CheckMouseMode(this); | |
| 1817 } | |
| 1818 } | |
| 1819 #ifdef DEBUG_GRAB | |
| 1820 printf("Final mode %d\n", video->input_grab); | |
| 1821 #endif | |
| 1822 | |
| 1823 /* Return the final grab state */ | |
| 1824 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1825 mode -= SDL_GRAB_FULLSCREEN; | |
| 1826 } | |
| 1827 return(mode); | |
| 1828 } | |
| 1829 SDL_GrabMode SDL_WM_GrabInput(SDL_GrabMode mode) | |
| 1830 { | |
| 1831 SDL_VideoDevice *video = current_video; | |
| 1832 | |
|
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1833 /* If the video isn't initialized yet, we can't do anything */ |
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1834 if ( ! video ) { |
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1835 return SDL_GRAB_OFF; |
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1836 } |
| 0 | 1837 |
| 1838 /* Return the current mode on query */ | |
| 1839 if ( mode == SDL_GRAB_QUERY ) { | |
| 1840 mode = video->input_grab; | |
| 1841 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1842 mode -= SDL_GRAB_FULLSCREEN; | |
| 1843 } | |
| 1844 return(mode); | |
| 1845 } | |
| 1846 | |
| 1847 #ifdef DEBUG_GRAB | |
| 1848 printf("SDL_WM_GrabInput(%d) ... ", mode); | |
| 1849 #endif | |
| 1850 /* If the video surface is fullscreen, we always grab */ | |
| 1851 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1852 mode -= SDL_GRAB_FULLSCREEN; | |
| 1853 } | |
| 1854 if ( SDL_VideoSurface && (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { | |
| 1855 mode += SDL_GRAB_FULLSCREEN; | |
| 1856 } | |
| 1857 return(SDL_WM_GrabInputRaw(mode)); | |
| 1858 } | |
| 1859 static SDL_GrabMode SDL_WM_GrabInputOff(void) | |
| 1860 { | |
| 1861 SDL_GrabMode mode; | |
| 1862 | |
| 1863 /* First query the current grab state */ | |
| 1864 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 1865 | |
| 1866 /* Now explicitly turn off input grab */ | |
| 1867 SDL_WM_GrabInputRaw(SDL_GRAB_OFF); | |
| 1868 | |
| 1869 /* Return the old state */ | |
| 1870 return(mode); | |
| 1871 } | |
| 1872 | |
| 1873 /* | |
| 1874 * Iconify the window in window managed environments. | |
| 1875 * A successful iconification will result in an SDL_APPACTIVE loss event. | |
| 1876 */ | |
| 1877 int SDL_WM_IconifyWindow(void) | |
| 1878 { | |
| 1879 SDL_VideoDevice *video = current_video; | |
| 1880 SDL_VideoDevice *this = current_video; | |
| 1881 int retval; | |
| 1882 | |
| 1883 retval = 0; | |
| 1884 if ( video->IconifyWindow ) { | |
| 1885 retval = video->IconifyWindow(this); | |
| 1886 } | |
| 1887 return(retval); | |
| 1888 } | |
| 1889 | |
| 1890 /* | |
| 1891 * Toggle fullscreen mode | |
| 1892 */ | |
| 1893 int SDL_WM_ToggleFullScreen(SDL_Surface *surface) | |
| 1894 { | |
| 1895 SDL_VideoDevice *video = current_video; | |
| 1896 SDL_VideoDevice *this = current_video; | |
| 1897 int toggled; | |
| 1898 | |
| 1899 toggled = 0; | |
| 1900 if ( SDL_PublicSurface && (surface == SDL_PublicSurface) && | |
| 1901 video->ToggleFullScreen ) { | |
| 1902 if ( surface->flags & SDL_FULLSCREEN ) { | |
| 1903 toggled = video->ToggleFullScreen(this, 0); | |
| 1904 if ( toggled ) { | |
| 1905 SDL_VideoSurface->flags &= ~SDL_FULLSCREEN; | |
| 1906 SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; | |
| 1907 } | |
| 1908 } else { | |
| 1909 toggled = video->ToggleFullScreen(this, 1); | |
| 1910 if ( toggled ) { | |
| 1911 SDL_VideoSurface->flags |= SDL_FULLSCREEN; | |
| 1912 SDL_PublicSurface->flags |= SDL_FULLSCREEN; | |
| 1913 } | |
| 1914 } | |
| 1915 /* Double-check the grab state inside SDL_WM_GrabInput() */ | |
| 1916 if ( toggled ) { | |
| 1917 SDL_WM_GrabInput(video->input_grab); | |
| 1918 } | |
| 1919 } | |
| 1920 return(toggled); | |
| 1921 } | |
| 1922 | |
| 1923 /* | |
| 1924 * Get some platform dependent window manager information | |
| 1925 */ | |
| 1926 int SDL_GetWMInfo (SDL_SysWMinfo *info) | |
| 1927 { | |
| 1928 SDL_VideoDevice *video = current_video; | |
| 1929 SDL_VideoDevice *this = current_video; | |
| 1930 | |
| 1931 if ( video && video->GetWMInfo ) { | |
| 1932 return(video->GetWMInfo(this, info)); | |
| 1933 } else { | |
| 1934 return(0); | |
| 1935 } | |
| 1936 } |