Mercurial > sdl-ios-xcode
annotate src/video/SDL_video.c @ 47:45b1c4303f87
Added initial support for Quartz video (thanks Darrell!)
| author | Sam Lantinga <slouken@lokigames.com> |
|---|---|
| date | Thu, 07 Jun 2001 14:28:11 +0000 |
| parents | 27cb016592f9 |
| children | bd6b0a910a65 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga | |
| 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 | |
| 20 slouken@devolution.com | |
| 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[] = { | |
| 48 #ifdef ENABLE_X11 | |
| 49 &X11_bootstrap, | |
| 50 #endif | |
| 51 #ifdef ENABLE_DGA | |
| 52 &DGA_bootstrap, | |
| 53 #endif | |
|
30
57bf11a5efd7
Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
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54 #ifdef ENABLE_NANOX |
|
57bf11a5efd7
Added initial support for Nano-X (thanks Hsieh-Fu!)
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19
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changeset
|
55 &NX_bootstrap, |
|
57bf11a5efd7
Added initial support for Nano-X (thanks Hsieh-Fu!)
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parents:
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|
56 #endif |
| 0 | 57 #ifdef ENABLE_FBCON |
| 58 &FBCON_bootstrap, | |
| 59 #endif | |
| 60 #ifdef ENABLE_PS2GS | |
| 61 &PS2GS_bootstrap, | |
| 62 #endif | |
| 63 #ifdef ENABLE_GGI | |
| 64 &GGI_bootstrap, | |
| 65 #endif | |
| 66 #ifdef ENABLE_SVGALIB | |
| 67 &SVGALIB_bootstrap, | |
| 68 #endif | |
| 69 #ifdef ENABLE_AALIB | |
| 70 &AALIB_bootstrap, | |
| 71 #endif | |
| 72 #ifdef ENABLE_DIRECTX | |
| 73 &DIRECTX_bootstrap, | |
| 74 #endif | |
| 75 #ifdef ENABLE_WINDIB | |
| 76 &WINDIB_bootstrap, | |
| 77 #endif | |
| 78 #ifdef ENABLE_BWINDOW | |
| 79 &BWINDOW_bootstrap, | |
| 80 #endif | |
| 81 #ifdef ENABLE_TOOLBOX | |
| 82 &TOOLBOX_bootstrap, | |
| 83 #endif | |
| 84 #ifdef ENABLE_DRAWSPROCKET | |
| 85 &DSp_bootstrap, | |
| 86 #endif | |
|
47
45b1c4303f87
Added initial support for Quartz video (thanks Darrell!)
Sam Lantinga <slouken@lokigames.com>
parents:
34
diff
changeset
|
87 #ifdef ENABLE_QUARTZ |
|
45b1c4303f87
Added initial support for Quartz video (thanks Darrell!)
Sam Lantinga <slouken@lokigames.com>
parents:
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changeset
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88 &QZ_bootstrap, |
|
45b1c4303f87
Added initial support for Quartz video (thanks Darrell!)
Sam Lantinga <slouken@lokigames.com>
parents:
34
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changeset
|
89 #endif |
| 0 | 90 #ifdef ENABLE_CYBERGRAPHICS |
| 91 &CGX_bootstrap, | |
| 92 #endif | |
|
1
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
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changeset
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93 #ifdef ENABLE_DUMMYVIDEO |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
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parents:
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changeset
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94 &DUMMY_bootstrap, |
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cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
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changeset
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95 #endif |
|
19
8cc4dbfab9ab
Date: Thu, 19 Apr 2001 08:36:54 +0300
Sam Lantinga <slouken@lokigames.com>
parents:
14
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changeset
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96 #ifdef ENABLE_PHOTON |
|
8cc4dbfab9ab
Date: Thu, 19 Apr 2001 08:36:54 +0300
Sam Lantinga <slouken@lokigames.com>
parents:
14
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changeset
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97 &ph_bootstrap, |
|
8cc4dbfab9ab
Date: Thu, 19 Apr 2001 08:36:54 +0300
Sam Lantinga <slouken@lokigames.com>
parents:
14
diff
changeset
|
98 #endif |
| 0 | 99 NULL |
| 100 }; | |
| 101 SDL_VideoDevice *current_video = NULL; | |
| 102 | |
| 103 /* Places to store title and icon text for the app */ | |
| 104 static char *wm_title = NULL; | |
| 105 static char *wm_icon = NULL; | |
| 106 | |
| 107 /* Various local functions */ | |
| 108 int SDL_VideoInit(const char *driver_name, Uint32 flags); | |
| 109 void SDL_VideoQuit(void); | |
| 110 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect* rects); | |
| 111 | |
| 112 static SDL_GrabMode SDL_WM_GrabInputOff(void); | |
| 113 #ifdef HAVE_OPENGL | |
| 114 static int lock_count = 0; | |
| 115 #endif | |
| 116 | |
| 117 | |
| 118 /* | |
| 119 * Initialize the video and event subsystems -- determine native pixel format | |
| 120 */ | |
| 121 int SDL_VideoInit (const char *driver_name, Uint32 flags) | |
| 122 { | |
| 123 SDL_VideoDevice *video; | |
| 124 int index; | |
| 125 int i; | |
| 126 SDL_PixelFormat vformat; | |
| 127 Uint32 video_flags; | |
| 128 | |
| 129 /* Toggle the event thread flags, based on OS requirements */ | |
| 130 #if defined(MUST_THREAD_EVENTS) | |
| 131 flags |= SDL_INIT_EVENTTHREAD; | |
| 132 #elif defined(CANT_THREAD_EVENTS) | |
| 133 if ( (flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD ) { | |
| 134 SDL_SetError("OS doesn't support threaded events"); | |
| 135 return(-1); | |
| 136 } | |
| 137 #endif | |
| 138 | |
| 139 /* Check to make sure we don't overwrite 'current_video' */ | |
| 140 if ( current_video != NULL ) { | |
| 141 SDL_VideoQuit(); | |
| 142 } | |
| 143 | |
| 144 /* Select the proper video driver */ | |
| 145 index = 0; | |
| 146 video = NULL; | |
| 147 if ( driver_name != NULL ) { | |
| 148 #if 0 /* This will be replaced with a better driver selection API */ | |
| 149 if ( strrchr(driver_name, ':') != NULL ) { | |
| 150 index = atoi(strrchr(driver_name, ':')+1); | |
| 151 } | |
| 152 #endif | |
| 153 for ( i=0; bootstrap[i]; ++i ) { | |
| 154 if ( strncmp(bootstrap[i]->name, driver_name, | |
| 155 strlen(bootstrap[i]->name)) == 0 ) { | |
| 156 if ( bootstrap[i]->available() ) { | |
| 157 video = bootstrap[i]->create(index); | |
| 158 break; | |
| 159 } | |
| 160 } | |
| 161 } | |
| 162 } else { | |
| 163 for ( i=0; bootstrap[i]; ++i ) { | |
| 164 if ( bootstrap[i]->available() ) { | |
| 165 video = bootstrap[i]->create(index); | |
| 166 if ( video != NULL ) { | |
| 167 break; | |
| 168 } | |
| 169 } | |
| 170 } | |
| 171 } | |
| 172 if ( video == NULL ) { | |
| 173 SDL_SetError("No available video device"); | |
| 174 return(-1); | |
| 175 } | |
| 176 current_video = video; | |
| 177 current_video->name = bootstrap[i]->name; | |
| 178 | |
| 179 /* Do some basic variable initialization */ | |
| 180 video->screen = NULL; | |
| 181 video->shadow = NULL; | |
| 182 video->visible = NULL; | |
| 183 video->physpal = NULL; | |
| 184 video->gammacols = NULL; | |
| 185 video->gamma = NULL; | |
| 186 video->wm_title = NULL; | |
| 187 video->wm_icon = NULL; | |
| 188 video->offset_x = 0; | |
| 189 video->offset_y = 0; | |
| 190 memset(&video->info, 0, (sizeof video->info)); | |
| 191 | |
| 192 /* Set some very sane GL defaults */ | |
| 193 video->gl_config.driver_loaded = 0; | |
| 194 video->gl_config.dll_handle = NULL; | |
| 195 video->gl_config.red_size = 5; | |
| 196 #if 1 /* This seems to work on more video cards, as a default */ | |
| 197 video->gl_config.green_size = 5; | |
| 198 #else | |
| 199 video->gl_config.green_size = 6; | |
| 200 #endif | |
| 201 video->gl_config.blue_size = 5; | |
| 202 video->gl_config.alpha_size = 0; | |
| 203 video->gl_config.buffer_size = 0; | |
| 204 video->gl_config.depth_size = 16; | |
| 205 video->gl_config.stencil_size = 0; | |
| 206 video->gl_config.double_buffer = 1; | |
| 207 video->gl_config.accum_red_size = 0; | |
| 208 video->gl_config.accum_green_size = 0; | |
| 209 video->gl_config.accum_blue_size = 0; | |
| 210 video->gl_config.accum_alpha_size = 0; | |
| 211 | |
| 212 /* Initialize the video subsystem */ | |
| 213 memset(&vformat, 0, sizeof(vformat)); | |
| 214 if ( video->VideoInit(video, &vformat) < 0 ) { | |
| 215 SDL_VideoQuit(); | |
| 216 return(-1); | |
| 217 } | |
| 218 | |
| 219 /* Create a zero sized video surface of the appropriate format */ | |
| 220 video_flags = SDL_SWSURFACE; | |
| 221 SDL_VideoSurface = SDL_CreateRGBSurface(video_flags, 0, 0, | |
| 222 vformat.BitsPerPixel, | |
| 223 vformat.Rmask, vformat.Gmask, vformat.Bmask, 0); | |
| 224 if ( SDL_VideoSurface == NULL ) { | |
| 225 SDL_VideoQuit(); | |
| 226 return(-1); | |
| 227 } | |
| 228 SDL_PublicSurface = NULL; /* Until SDL_SetVideoMode() */ | |
| 229 | |
| 230 #if 0 /* Don't change the current palette - may be used by other programs. | |
| 231 * The application can't do anything with the display surface until | |
| 232 * a video mode has been set anyway. :) | |
| 233 */ | |
| 234 /* If we have a palettized surface, create a default palette */ | |
| 235 if ( SDL_VideoSurface->format->palette ) { | |
| 236 SDL_PixelFormat *vf = SDL_VideoSurface->format; | |
| 237 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); | |
| 238 video->SetColors(video, | |
| 239 0, vf->palette->ncolors, vf->palette->colors); | |
| 240 } | |
| 241 #endif | |
| 242 video->info.vfmt = SDL_VideoSurface->format; | |
| 243 | |
| 244 /* Start the event loop */ | |
| 245 if ( SDL_StartEventLoop(flags) < 0 ) { | |
| 246 SDL_VideoQuit(); | |
| 247 return(-1); | |
| 248 } | |
| 249 SDL_CursorInit(flags & SDL_INIT_EVENTTHREAD); | |
| 250 | |
| 251 /* We're ready to go! */ | |
| 252 return(0); | |
| 253 } | |
| 254 | |
| 255 char *SDL_VideoDriverName(char *namebuf, int maxlen) | |
| 256 { | |
| 257 if ( current_video != NULL ) { | |
| 258 strncpy(namebuf, current_video->name, maxlen-1); | |
| 259 namebuf[maxlen-1] = '\0'; | |
| 260 return(namebuf); | |
| 261 } | |
| 262 return(NULL); | |
| 263 } | |
| 264 | |
| 265 /* | |
| 266 * Get the current display surface | |
| 267 */ | |
| 268 SDL_Surface *SDL_GetVideoSurface(void) | |
| 269 { | |
| 270 SDL_Surface *visible; | |
| 271 | |
| 272 visible = NULL; | |
| 273 if ( current_video ) { | |
| 274 visible = current_video->visible; | |
| 275 } | |
| 276 return(visible); | |
| 277 } | |
| 278 | |
| 279 /* | |
| 280 * Get the current information about the video hardware | |
| 281 */ | |
| 282 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
| 283 { | |
| 284 const SDL_VideoInfo *info; | |
| 285 | |
| 286 info = NULL; | |
| 287 if ( current_video ) { | |
| 288 info = ¤t_video->info; | |
| 289 } | |
| 290 return(info); | |
| 291 } | |
| 292 | |
| 293 /* | |
| 294 * Return a pointer to an array of available screen dimensions for the | |
| 295 * given format, sorted largest to smallest. Returns NULL if there are | |
| 296 * no dimensions available for a particular format, or (SDL_Rect **)-1 | |
| 297 * if any dimension is okay for the given format. If 'format' is NULL, | |
| 298 * the mode list will be for the format given by SDL_GetVideoInfo()->vfmt | |
| 299 */ | |
| 300 SDL_Rect ** SDL_ListModes (SDL_PixelFormat *format, Uint32 flags) | |
| 301 { | |
| 302 SDL_VideoDevice *video = current_video; | |
| 303 SDL_VideoDevice *this = current_video; | |
| 304 SDL_Rect **modes; | |
| 305 | |
| 306 modes = NULL; | |
| 307 if ( SDL_VideoSurface ) { | |
| 308 if ( format == NULL ) { | |
| 309 format = SDL_VideoSurface->format; | |
| 310 } | |
| 311 modes = video->ListModes(this, format, flags); | |
| 312 } | |
| 313 return(modes); | |
| 314 } | |
| 315 | |
| 316 /* | |
| 317 * Check to see if a particular video mode is supported. | |
| 318 * It returns 0 if the requested mode is not supported under any bit depth, | |
| 319 * or returns the bits-per-pixel of the closest available mode with the | |
| 320 * given width and height. If this bits-per-pixel is different from the | |
| 321 * one used when setting the video mode, SDL_SetVideoMode() will succeed, | |
| 322 * but will emulate the requested bits-per-pixel with a shadow surface. | |
| 323 */ | |
| 324 static Uint8 SDL_closest_depths[4][8] = { | |
| 325 /* 8 bit closest depth ordering */ | |
| 326 { 0, 8, 16, 15, 32, 24, 0, 0 }, | |
| 327 /* 15,16 bit closest depth ordering */ | |
| 328 { 0, 16, 15, 32, 24, 8, 0, 0 }, | |
| 329 /* 24 bit closest depth ordering */ | |
| 330 { 0, 24, 32, 16, 15, 8, 0, 0 }, | |
| 331 /* 32 bit closest depth ordering */ | |
| 332 { 0, 32, 16, 15, 24, 8, 0, 0 } | |
| 333 }; | |
| 334 | |
| 335 int SDL_VideoModeOK (int width, int height, int bpp, Uint32 flags) | |
| 336 { | |
| 337 int table, b, i; | |
| 338 int supported; | |
| 339 SDL_PixelFormat format; | |
| 340 SDL_Rect **sizes; | |
| 341 | |
| 342 /* Currently 1 and 4 bpp are not supported */ | |
| 343 if ( bpp < 8 || bpp > 32 ) { | |
| 344 return(0); | |
| 345 } | |
| 346 if ( (width == 0) || (height == 0) ) { | |
| 347 return(0); | |
| 348 } | |
| 349 | |
| 350 /* Search through the list valid of modes */ | |
| 351 memset(&format, 0, sizeof(format)); | |
| 352 supported = 0; | |
| 353 table = ((bpp+7)/8)-1; | |
| 354 SDL_closest_depths[table][0] = bpp; | |
| 355 SDL_closest_depths[table][7] = 0; | |
| 356 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 357 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 358 sizes = SDL_ListModes(&format, flags); | |
| 359 if ( sizes == (SDL_Rect **)0 ) { | |
| 360 /* No sizes supported at this bit-depth */ | |
| 361 continue; | |
| 362 } else | |
| 363 #ifdef macintosh /* MPW optimization bug? */ | |
| 364 if ( (sizes == (SDL_Rect **)0xFFFFFFFF) || | |
| 365 #else | |
| 366 if ( (sizes == (SDL_Rect **)-1) || | |
| 367 #endif | |
| 368 current_video->handles_any_size ) { | |
| 369 /* Any size supported at this bit-depth */ | |
| 370 supported = 1; | |
| 371 continue; | |
| 372 } else | |
| 373 for ( i=0; sizes[i]; ++i ) { | |
| 374 if ((sizes[i]->w == width) && (sizes[i]->h == height)) { | |
| 375 supported = 1; | |
| 376 break; | |
| 377 } | |
| 378 } | |
| 379 } | |
| 380 if ( supported ) { | |
| 381 --b; | |
| 382 return(SDL_closest_depths[table][b]); | |
| 383 } else { | |
| 384 return(0); | |
| 385 } | |
| 386 } | |
| 387 | |
| 388 /* | |
| 389 * Get the closest non-emulated video mode to the one requested | |
| 390 */ | |
| 391 static int SDL_GetVideoMode (int *w, int *h, int *BitsPerPixel, Uint32 flags) | |
| 392 { | |
| 393 int table, b, i; | |
| 394 int supported; | |
| 395 int native_bpp; | |
| 396 SDL_PixelFormat format; | |
| 397 SDL_Rect **sizes; | |
| 398 | |
| 399 /* Try the original video mode, get the closest depth */ | |
| 400 native_bpp = SDL_VideoModeOK(*w, *h, *BitsPerPixel, flags); | |
| 401 if ( native_bpp == *BitsPerPixel ) { | |
| 402 return(1); | |
| 403 } | |
| 404 if ( native_bpp > 0 ) { | |
| 405 *BitsPerPixel = native_bpp; | |
| 406 return(1); | |
| 407 } | |
| 408 | |
| 409 /* No exact size match at any depth, look for closest match */ | |
| 410 memset(&format, 0, sizeof(format)); | |
| 411 supported = 0; | |
| 412 table = ((*BitsPerPixel+7)/8)-1; | |
| 413 SDL_closest_depths[table][0] = *BitsPerPixel; | |
| 414 SDL_closest_depths[table][7] = SDL_VideoSurface->format->BitsPerPixel; | |
| 415 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 416 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 417 sizes = SDL_ListModes(&format, flags); | |
| 418 if ( sizes == (SDL_Rect **)0 ) { | |
| 419 /* No sizes supported at this bit-depth */ | |
| 420 continue; | |
| 421 } | |
| 422 for ( i=0; sizes[i]; ++i ) { | |
| 423 if ((sizes[i]->w < *w) || (sizes[i]->h < *h)) { | |
| 424 if ( i > 0 ) { | |
| 425 --i; | |
| 426 *w = sizes[i]->w; | |
| 427 *h = sizes[i]->h; | |
| 428 *BitsPerPixel = SDL_closest_depths[table][b]; | |
| 429 supported = 1; | |
| 430 } else { | |
| 431 /* Largest mode too small... */; | |
| 432 } | |
| 433 break; | |
| 434 } | |
| 435 } | |
| 436 if ( (i > 0) && ! sizes[i] ) { | |
| 437 /* The smallest mode was larger than requested, OK */ | |
| 438 --i; | |
| 439 *w = sizes[i]->w; | |
| 440 *h = sizes[i]->h; | |
| 441 *BitsPerPixel = SDL_closest_depths[table][b]; | |
| 442 supported = 1; | |
| 443 } | |
| 444 } | |
| 445 if ( ! supported ) { | |
| 446 SDL_SetError("No video mode large enough for %dx%d", *w, *h); | |
| 447 } | |
| 448 return(supported); | |
| 449 } | |
| 450 | |
| 451 /* This should probably go somewhere else -- like SDL_surface.c */ | |
| 452 static void SDL_ClearSurface(SDL_Surface *surface) | |
| 453 { | |
| 454 Uint32 black; | |
| 455 | |
| 456 black = SDL_MapRGB(surface->format, 0, 0, 0); | |
| 457 SDL_FillRect(surface, NULL, black); | |
| 458 if ((surface->flags&SDL_HWSURFACE) && (surface->flags&SDL_DOUBLEBUF)) { | |
| 459 SDL_Flip(surface); | |
| 460 SDL_FillRect(surface, NULL, black); | |
| 461 } | |
| 462 SDL_Flip(surface); | |
| 463 } | |
| 464 | |
| 465 /* | |
| 466 * Create a shadow surface suitable for fooling the app. :-) | |
| 467 */ | |
| 468 static void SDL_CreateShadowSurface(int depth) | |
| 469 { | |
| 470 Uint32 Rmask, Gmask, Bmask; | |
| 471 | |
| 472 /* Allocate the shadow surface */ | |
| 473 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 474 Rmask = (SDL_VideoSurface->format)->Rmask; | |
| 475 Gmask = (SDL_VideoSurface->format)->Gmask; | |
| 476 Bmask = (SDL_VideoSurface->format)->Bmask; | |
| 477 } else { | |
| 478 Rmask = Gmask = Bmask = 0; | |
| 479 } | |
| 480 SDL_ShadowSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
| 481 SDL_VideoSurface->w, SDL_VideoSurface->h, | |
| 482 depth, Rmask, Gmask, Bmask, 0); | |
| 483 if ( SDL_ShadowSurface == NULL ) { | |
| 484 return; | |
| 485 } | |
| 486 | |
| 487 /* 8-bit shadow surfaces report that they have exclusive palette */ | |
| 488 if ( SDL_ShadowSurface->format->palette ) { | |
| 489 SDL_ShadowSurface->flags |= SDL_HWPALETTE; | |
| 490 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 491 memcpy(SDL_ShadowSurface->format->palette->colors, | |
| 492 SDL_VideoSurface->format->palette->colors, | |
| 493 SDL_VideoSurface->format->palette->ncolors* | |
| 494 sizeof(SDL_Color)); | |
| 495 } else { | |
| 496 SDL_DitherColors( | |
| 497 SDL_ShadowSurface->format->palette->colors, depth); | |
| 498 } | |
| 499 } | |
| 500 | |
| 501 /* If the video surface is resizable, the shadow should say so */ | |
| 502 if ( (SDL_VideoSurface->flags & SDL_RESIZABLE) == SDL_RESIZABLE ) { | |
| 503 SDL_ShadowSurface->flags |= SDL_RESIZABLE; | |
| 504 } | |
| 505 /* If the video surface has no frame, the shadow should say so */ | |
| 506 if ( (SDL_VideoSurface->flags & SDL_NOFRAME) == SDL_NOFRAME ) { | |
| 507 SDL_ShadowSurface->flags |= SDL_NOFRAME; | |
| 508 } | |
| 509 /* If the video surface is fullscreen, the shadow should say so */ | |
| 510 if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 511 SDL_ShadowSurface->flags |= SDL_FULLSCREEN; | |
| 512 } | |
| 513 /* If the video surface is flippable, the shadow should say so */ | |
| 514 if ( (SDL_VideoSurface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 515 SDL_ShadowSurface->flags |= SDL_DOUBLEBUF; | |
| 516 } | |
| 517 return; | |
| 518 } | |
| 519 | |
| 520 /* | |
| 521 * Set the requested video mode, allocating a shadow buffer if necessary. | |
| 522 */ | |
| 523 SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags) | |
| 524 { | |
| 525 SDL_VideoDevice *video, *this; | |
| 526 SDL_Surface *prev_mode, *mode; | |
| 527 int video_w; | |
| 528 int video_h; | |
| 529 int video_bpp; | |
| 530 int is_opengl; | |
| 531 SDL_GrabMode saved_grab; | |
| 532 | |
| 533 /* Start up the video driver, if necessary.. | |
| 534 WARNING: This is the only function protected this way! | |
| 535 */ | |
| 536 if ( ! current_video ) { | |
| 537 if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE) < 0 ) { | |
| 538 return(NULL); | |
| 539 } | |
| 540 } | |
| 541 this = video = current_video; | |
| 542 | |
| 543 /* Default to the current video bpp */ | |
| 544 if ( bpp == 0 ) { | |
| 545 flags |= SDL_ANYFORMAT; | |
| 546 bpp = SDL_VideoSurface->format->BitsPerPixel; | |
| 547 } | |
| 548 | |
| 549 /* Get a good video mode, the closest one possible */ | |
| 550 video_w = width; | |
| 551 video_h = height; | |
| 552 video_bpp = bpp; | |
| 553 if ( ! SDL_GetVideoMode(&video_w, &video_h, &video_bpp, flags) ) { | |
| 554 return(NULL); | |
| 555 } | |
| 556 | |
| 557 /* Check the requested flags */ | |
| 558 /* There's no palette in > 8 bits-per-pixel mode */ | |
| 559 if ( video_bpp > 8 ) { | |
| 560 flags &= ~SDL_HWPALETTE; | |
| 561 } | |
| 562 #if 0 | |
| 563 if ( (flags&SDL_FULLSCREEN) != SDL_FULLSCREEN ) { | |
| 564 /* There's no windowed double-buffering */ | |
| 565 flags &= ~SDL_DOUBLEBUF; | |
| 566 } | |
| 567 #endif | |
| 568 if ( (flags&SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 569 /* Use hardware surfaces when double-buffering */ | |
| 570 flags |= SDL_HWSURFACE; | |
| 571 } | |
| 572 | |
| 573 is_opengl = ( ( flags & SDL_OPENGL ) == SDL_OPENGL ); | |
| 574 if ( is_opengl ) { | |
| 575 /* These flags are for 2D video modes only */ | |
| 576 flags &= ~(SDL_HWSURFACE|SDL_DOUBLEBUF); | |
| 577 } | |
| 578 | |
|
14
c3e9d4a623c1
Fixed stuck keys when changing the video mode
Sam Lantinga <slouken@lokigames.com>
parents:
11
diff
changeset
|
579 /* Reset the keyboard here so event callbacks can run */ |
|
c3e9d4a623c1
Fixed stuck keys when changing the video mode
Sam Lantinga <slouken@lokigames.com>
parents:
11
diff
changeset
|
580 SDL_ResetKeyboard(); |
|
c3e9d4a623c1
Fixed stuck keys when changing the video mode
Sam Lantinga <slouken@lokigames.com>
parents:
11
diff
changeset
|
581 |
| 0 | 582 /* Clean up any previous video mode */ |
| 583 if ( SDL_PublicSurface != NULL ) { | |
| 584 SDL_PublicSurface = NULL; | |
| 585 } | |
| 586 if ( SDL_ShadowSurface != NULL ) { | |
| 587 SDL_Surface *ready_to_go; | |
| 588 ready_to_go = SDL_ShadowSurface; | |
| 589 SDL_ShadowSurface = NULL; | |
| 590 SDL_FreeSurface(ready_to_go); | |
| 591 } | |
| 592 if ( video->physpal ) { | |
| 593 free(video->physpal->colors); | |
| 594 free(video->physpal); | |
| 595 video->physpal = NULL; | |
| 596 } | |
| 597 if( video->gammacols) { | |
| 598 free(video->gammacols); | |
| 599 video->gammacols = NULL; | |
| 600 } | |
| 601 | |
| 602 /* Save the previous grab state and turn off grab for mode switch */ | |
| 603 saved_grab = SDL_WM_GrabInputOff(); | |
| 604 | |
| 605 /* Try to set the video mode, along with offset and clipping */ | |
| 606 prev_mode = SDL_VideoSurface; | |
| 607 SDL_LockCursor(); | |
| 608 SDL_VideoSurface = NULL; /* In case it's freed by driver */ | |
| 609 mode = video->SetVideoMode(this, prev_mode,video_w,video_h,video_bpp,flags); | |
| 610 if ( mode ) { /* Prevent resize events from mode change */ | |
| 611 SDL_PrivateResize(mode->w, mode->h); | |
| 612 } | |
| 613 /* | |
| 614 * rcg11292000 | |
| 615 * If you try to set an SDL_OPENGL surface, and fail to find a | |
| 616 * matching visual, then the next call to SDL_SetVideoMode() | |
| 617 * will segfault, since we no longer point to a dummy surface, | |
| 618 * but rather NULL. | |
| 619 * Sam 11/29/00 | |
| 620 * WARNING, we need to make sure that the previous mode hasn't | |
| 621 * already been freed by the video driver. What do we do in | |
| 622 * that case? Should we call SDL_VideoInit() again? | |
| 623 */ | |
| 624 SDL_VideoSurface = (mode != NULL) ? mode : prev_mode; | |
| 625 | |
| 626 if ( (mode != NULL) && (!is_opengl) ) { | |
| 627 /* Sanity check */ | |
| 628 if ( (mode->w < width) || (mode->h < height) ) { | |
| 629 SDL_SetError("Video mode smaller than requested"); | |
| 630 return(NULL); | |
| 631 } | |
| 632 | |
| 633 /* If we have a palettized surface, create a default palette */ | |
| 634 if ( mode->format->palette ) { | |
| 635 SDL_PixelFormat *vf = mode->format; | |
| 636 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); | |
| 637 video->SetColors(this, 0, vf->palette->ncolors, | |
| 638 vf->palette->colors); | |
| 639 } | |
| 640 | |
| 641 /* Clear the surface to black */ | |
| 642 video->offset_x = 0; | |
| 643 video->offset_y = 0; | |
| 644 mode->offset = 0; | |
| 645 SDL_SetClipRect(mode, NULL); | |
| 646 SDL_ClearSurface(mode); | |
| 647 | |
| 648 /* Now adjust the offsets to match the desired mode */ | |
| 649 video->offset_x = (mode->w-width)/2; | |
| 650 video->offset_y = (mode->h-height)/2; | |
| 651 mode->offset = video->offset_y*mode->pitch + | |
| 652 video->offset_x*mode->format->BytesPerPixel; | |
| 653 #ifdef DEBUG_VIDEO | |
| 654 fprintf(stderr, | |
| 655 "Requested mode: %dx%dx%d, obtained mode %dx%dx%d (offset %d)\n", | |
| 656 width, height, bpp, | |
| 657 mode->w, mode->h, mode->format->BitsPerPixel, mode->offset); | |
| 658 #endif | |
| 659 mode->w = width; | |
| 660 mode->h = height; | |
| 661 SDL_SetClipRect(mode, NULL); | |
| 662 } | |
| 663 SDL_ResetCursor(); | |
| 664 SDL_UnlockCursor(); | |
| 665 | |
| 666 /* If we failed setting a video mode, return NULL... (Uh Oh!) */ | |
| 667 if ( mode == NULL ) { | |
| 668 return(NULL); | |
| 669 } | |
| 670 | |
| 671 /* If there is no window manager, set the SDL_NOFRAME flag */ | |
| 672 if ( ! video->info.wm_available ) { | |
| 673 mode->flags |= SDL_NOFRAME; | |
| 674 } | |
| 675 | |
| 676 /* Reset the mouse cursor and grab for new video mode */ | |
| 677 SDL_SetCursor(NULL); | |
| 678 if ( video->UpdateMouse ) { | |
| 679 video->UpdateMouse(this); | |
| 680 } | |
| 681 SDL_WM_GrabInput(saved_grab); | |
| 682 SDL_GetRelativeMouseState(NULL, NULL); /* Clear first large delta */ | |
| 683 | |
| 684 /* If we're running OpenGL, make the context current */ | |
| 685 if ( (video->screen->flags & SDL_OPENGL) && | |
| 686 video->GL_MakeCurrent ) { | |
| 687 if ( video->GL_MakeCurrent(this) < 0 ) { | |
| 688 return(NULL); | |
| 689 } | |
| 690 } | |
| 691 | |
| 692 /* Set up a fake SDL surface for OpenGL "blitting" */ | |
| 693 if ( (flags & SDL_OPENGLBLIT) == SDL_OPENGLBLIT ) { | |
| 694 /* Load GL functions for performing the texture updates */ | |
| 695 #ifdef HAVE_OPENGL | |
| 696 #define SDL_PROC(ret,func,params) \ | |
| 697 do { \ | |
| 698 video->func = SDL_GL_GetProcAddress(#func); \ | |
| 699 if ( ! video->func ) { \ | |
| 700 SDL_SetError("Couldn't load GL function: %s\n", #func); \ | |
| 701 return(NULL); \ | |
| 702 } \ | |
| 703 } while ( 0 ); | |
| 704 #include "SDL_glfuncs.h" | |
| 705 #undef SDL_PROC | |
| 706 | |
| 707 /* Create a software surface for blitting */ | |
| 708 #ifdef GL_VERSION_1_2 | |
| 709 /* If the implementation either supports the packed pixels | |
| 710 extension, or implements the core OpenGL 1.2 API, it will | |
| 711 support the GL_UNSIGNED_SHORT_5_6_5 texture format. | |
| 712 */ | |
| 713 if ( (bpp == 16) && | |
| 714 (strstr((const char *)video->glGetString(GL_EXTENSIONS), | |
| 715 "GL_EXT_packed_pixels") || | |
| 716 (strncmp((const char *)video->glGetString(GL_VERSION), | |
| 717 "1.2", 3) == 0)) ) | |
| 718 { | |
| 719 video->is_32bit = 0; | |
| 720 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 721 flags, | |
| 722 width, | |
| 723 height, | |
| 724 16, | |
| 725 31 << 11, | |
| 726 63 << 5, | |
| 727 31, | |
| 728 0 | |
| 729 ); | |
| 730 } | |
| 731 else | |
| 732 #endif /* OpenGL 1.2 */ | |
| 733 { | |
| 734 video->is_32bit = 1; | |
| 735 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 736 flags, | |
| 737 width, | |
| 738 height, | |
| 739 32, | |
| 740 #if SDL_BYTEORDER == SDL_LIL_ENDIAN | |
| 741 0x000000FF, | |
| 742 0x0000FF00, | |
| 743 0x00FF0000, | |
| 744 0xFF000000 | |
| 745 #else | |
| 746 0xFF000000, | |
| 747 0x00FF0000, | |
| 748 0x0000FF00, | |
| 749 0x000000FF | |
| 750 #endif | |
| 751 ); | |
| 752 } | |
| 753 if ( ! SDL_VideoSurface ) { | |
| 754 return(NULL); | |
| 755 } | |
| 756 SDL_VideoSurface->flags = mode->flags | SDL_OPENGLBLIT; | |
| 757 | |
| 758 /* Free the original video mode surface (is this safe?) */ | |
| 759 SDL_FreeSurface(mode); | |
| 760 | |
| 761 /* Set the surface completely opaque & white by default */ | |
| 762 memset( SDL_VideoSurface->pixels, 255, SDL_VideoSurface->h * SDL_VideoSurface->pitch ); | |
| 763 video->glGenTextures( 1, &video->texture ); | |
| 764 video->glBindTexture( GL_TEXTURE_2D, video->texture ); | |
| 765 video->glTexImage2D( | |
| 766 GL_TEXTURE_2D, | |
| 767 0, | |
| 768 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 769 256, | |
| 770 256, | |
| 771 0, | |
| 772 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 773 #ifdef GL_VERSION_1_2 | |
| 774 video->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 775 #else | |
| 776 GL_UNSIGNED_BYTE, | |
| 777 #endif | |
| 778 NULL); | |
| 779 | |
| 780 video->UpdateRects = SDL_GL_UpdateRectsLock; | |
| 781 #else | |
| 782 SDL_SetError("Somebody forgot to #define HAVE_OPENGL"); | |
| 783 return(NULL); | |
| 784 #endif | |
| 785 } | |
| 786 | |
| 787 /* Create a shadow surface if necessary */ | |
| 788 /* There are three conditions under which we create a shadow surface: | |
| 789 1. We need a particular bits-per-pixel that we didn't get. | |
| 790 2. We need a hardware palette and didn't get one. | |
| 791 3. We need a software surface and got a hardware surface. | |
| 792 */ | |
| 793 if ( !(SDL_VideoSurface->flags & SDL_OPENGL) && | |
| 794 ( | |
| 795 ( !(flags&SDL_ANYFORMAT) && | |
| 796 (SDL_VideoSurface->format->BitsPerPixel != bpp)) || | |
| 797 ( (flags&SDL_HWPALETTE) && | |
| 798 !(SDL_VideoSurface->flags&SDL_HWPALETTE)) || | |
| 799 /* If the surface is in hardware, video writes are visible | |
| 800 as soon as they are performed, so we need to buffer them | |
| 801 */ | |
| 802 ( ((flags&SDL_HWSURFACE) == SDL_SWSURFACE) && | |
| 803 (SDL_VideoSurface->flags&SDL_HWSURFACE)) | |
| 804 ) ) { | |
| 805 SDL_CreateShadowSurface(bpp); | |
| 806 if ( SDL_ShadowSurface == NULL ) { | |
| 807 SDL_SetError("Couldn't create shadow surface"); | |
| 808 return(NULL); | |
| 809 } | |
| 810 SDL_PublicSurface = SDL_ShadowSurface; | |
| 811 } else { | |
| 812 SDL_PublicSurface = SDL_VideoSurface; | |
| 813 } | |
| 814 video->info.vfmt = SDL_VideoSurface->format; | |
| 815 | |
| 816 /* We're done! */ | |
| 817 return(SDL_PublicSurface); | |
| 818 } | |
| 819 | |
| 820 /* | |
| 821 * Convert a surface into the video pixel format. | |
| 822 */ | |
| 823 SDL_Surface * SDL_DisplayFormat (SDL_Surface *surface) | |
| 824 { | |
| 825 Uint32 flags; | |
| 826 | |
| 827 if ( ! SDL_PublicSurface ) { | |
| 828 SDL_SetError("No video mode has been set"); | |
| 829 return(NULL); | |
| 830 } | |
| 831 /* Set the flags appropriate for copying to display surface */ | |
| 832 flags = (SDL_PublicSurface->flags&SDL_HWSURFACE); | |
| 833 #ifdef AUTORLE_DISPLAYFORMAT | |
| 834 flags |= (surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA)); | |
| 835 flags |= SDL_RLEACCELOK; | |
| 836 #else | |
| 837 flags |= surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA|SDL_RLEACCELOK); | |
| 838 #endif | |
| 839 return(SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags)); | |
| 840 } | |
| 841 | |
| 842 /* | |
| 843 * Convert a surface into a format that's suitable for blitting to | |
| 844 * the screen, but including an alpha channel. | |
| 845 */ | |
| 846 SDL_Surface *SDL_DisplayFormatAlpha(SDL_Surface *surface) | |
| 847 { | |
| 848 SDL_PixelFormat *vf; | |
| 849 SDL_PixelFormat *format; | |
| 850 SDL_Surface *converted; | |
| 851 Uint32 flags; | |
| 852 /* default to ARGB8888 */ | |
| 853 Uint32 amask = 0xff000000; | |
| 854 Uint32 rmask = 0x00ff0000; | |
| 855 Uint32 gmask = 0x0000ff00; | |
| 856 Uint32 bmask = 0x000000ff; | |
| 857 | |
| 858 if ( ! SDL_PublicSurface ) { | |
| 859 SDL_SetError("No video mode has been set"); | |
| 860 return(NULL); | |
| 861 } | |
| 862 vf = SDL_PublicSurface->format; | |
| 863 | |
| 864 switch(vf->BytesPerPixel) { | |
| 865 case 2: | |
| 866 /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}. | |
| 867 For anything else (like ARGB4444) it doesn't matter | |
| 868 since we have no special code for it anyway */ | |
| 869 if ( (vf->Rmask == 0x1f) && | |
| 870 (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) { | |
| 871 rmask = 0xff; | |
| 872 bmask = 0xff0000; | |
| 873 } | |
| 874 break; | |
| 875 | |
| 876 case 3: | |
| 877 case 4: | |
| 878 /* Keep the video format, as long as the high 8 bits are | |
| 879 unused or alpha */ | |
| 880 if ( (vf->Rmask == 0xff) && (vf->Bmask == 0xff0000) ) { | |
| 881 rmask = 0xff; | |
| 882 bmask = 0xff0000; | |
| 883 } | |
| 884 break; | |
| 885 | |
| 886 default: | |
| 887 /* We have no other optimised formats right now. When/if a new | |
| 888 optimised alpha format is written, add the converter here */ | |
| 889 break; | |
| 890 } | |
| 891 format = SDL_AllocFormat(32, rmask, gmask, bmask, amask); | |
| 892 flags = SDL_PublicSurface->flags & SDL_HWSURFACE; | |
| 893 flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); | |
| 894 converted = SDL_ConvertSurface(surface, format, flags); | |
| 895 SDL_FreeFormat(format); | |
| 896 return(converted); | |
| 897 } | |
| 898 | |
| 899 /* | |
| 900 * Update a specific portion of the physical screen | |
| 901 */ | |
| 902 void SDL_UpdateRect(SDL_Surface *screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h) | |
| 903 { | |
| 904 if ( screen ) { | |
| 905 SDL_Rect rect; | |
| 906 | |
| 907 /* Perform some checking */ | |
| 908 if ( w == 0 ) | |
| 909 w = screen->w; | |
| 910 if ( h == 0 ) | |
| 911 h = screen->h; | |
| 912 if ( (int)(x+w) > screen->w ) | |
| 913 return; | |
| 914 if ( (int)(y+h) > screen->h ) | |
| 915 return; | |
| 916 | |
| 917 /* Fill the rectangle */ | |
| 918 rect.x = x; | |
| 919 rect.y = y; | |
| 920 rect.w = w; | |
| 921 rect.h = h; | |
| 922 SDL_UpdateRects(screen, 1, &rect); | |
| 923 } | |
| 924 } | |
| 925 void SDL_UpdateRects (SDL_Surface *screen, int numrects, SDL_Rect *rects) | |
| 926 { | |
| 927 int i; | |
| 928 SDL_VideoDevice *video = current_video; | |
| 929 SDL_VideoDevice *this = current_video; | |
| 930 | |
| 931 if ( screen == SDL_ShadowSurface ) { | |
| 932 /* Blit the shadow surface using saved mapping */ | |
| 933 SDL_Palette *pal = screen->format->palette; | |
| 934 SDL_Color *saved_colors = NULL; | |
| 935 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { | |
| 936 /* simulated 8bpp, use correct physical palette */ | |
| 937 saved_colors = pal->colors; | |
| 938 if ( video->gammacols ) { | |
| 939 /* gamma-corrected palette */ | |
| 940 pal->colors = video->gammacols; | |
| 941 } else if ( video->physpal ) { | |
| 942 /* physical palette different from logical */ | |
| 943 pal->colors = video->physpal->colors; | |
| 944 } | |
| 945 } | |
| 946 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { | |
| 947 SDL_LockCursor(); | |
| 948 SDL_DrawCursor(SDL_ShadowSurface); | |
| 949 for ( i=0; i<numrects; ++i ) { | |
| 950 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 951 SDL_VideoSurface, &rects[i]); | |
| 952 } | |
| 953 SDL_EraseCursor(SDL_ShadowSurface); | |
| 954 SDL_UnlockCursor(); | |
| 955 } else { | |
| 956 for ( i=0; i<numrects; ++i ) { | |
| 957 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 958 SDL_VideoSurface, &rects[i]); | |
| 959 } | |
| 960 } | |
| 961 if ( saved_colors ) | |
| 962 pal->colors = saved_colors; | |
| 963 | |
| 964 /* Fall through to video surface update */ | |
| 965 screen = SDL_VideoSurface; | |
| 966 } | |
| 967 if ( screen == SDL_VideoSurface ) { | |
| 968 /* Update the video surface */ | |
| 969 if ( screen->offset ) { | |
| 970 for ( i=0; i<numrects; ++i ) { | |
| 971 rects[i].x += video->offset_x; | |
| 972 rects[i].y += video->offset_y; | |
| 973 } | |
| 974 video->UpdateRects(this, numrects, rects); | |
| 975 for ( i=0; i<numrects; ++i ) { | |
| 976 rects[i].x -= video->offset_x; | |
| 977 rects[i].y -= video->offset_y; | |
| 978 } | |
| 979 } else { | |
| 980 video->UpdateRects(this, numrects, rects); | |
| 981 } | |
| 982 } | |
| 983 } | |
| 984 | |
| 985 /* | |
| 986 * Performs hardware double buffering, if possible, or a full update if not. | |
| 987 */ | |
| 988 int SDL_Flip(SDL_Surface *screen) | |
| 989 { | |
| 990 SDL_VideoDevice *video = current_video; | |
| 991 /* Copy the shadow surface to the video surface */ | |
| 992 if ( screen == SDL_ShadowSurface ) { | |
| 993 SDL_Rect rect; | |
| 994 SDL_Palette *pal = screen->format->palette; | |
| 995 SDL_Color *saved_colors = NULL; | |
| 996 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { | |
| 997 /* simulated 8bpp, use correct physical palette */ | |
| 998 saved_colors = pal->colors; | |
| 999 if ( video->gammacols ) { | |
| 1000 /* gamma-corrected palette */ | |
| 1001 pal->colors = video->gammacols; | |
| 1002 } else if ( video->physpal ) { | |
| 1003 /* physical palette different from logical */ | |
| 1004 pal->colors = video->physpal->colors; | |
| 1005 } | |
| 1006 } | |
| 1007 | |
| 1008 rect.x = 0; | |
| 1009 rect.y = 0; | |
| 1010 rect.w = screen->w; | |
| 1011 rect.h = screen->h; | |
| 1012 SDL_LowerBlit(SDL_ShadowSurface,&rect, SDL_VideoSurface,&rect); | |
| 1013 | |
| 1014 if ( saved_colors ) | |
| 1015 pal->colors = saved_colors; | |
| 1016 screen = SDL_VideoSurface; | |
| 1017 } | |
| 1018 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 1019 SDL_VideoDevice *this = current_video; | |
| 1020 return(video->FlipHWSurface(this, SDL_VideoSurface)); | |
| 1021 } else { | |
| 1022 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1023 } | |
| 1024 return(0); | |
| 1025 } | |
| 1026 | |
| 1027 static void SetPalette_logical(SDL_Surface *screen, SDL_Color *colors, | |
| 1028 int firstcolor, int ncolors) | |
| 1029 { | |
| 1030 SDL_Palette *pal = screen->format->palette; | |
| 1031 SDL_Palette *vidpal; | |
| 1032 | |
| 1033 if ( colors != (pal->colors + firstcolor) ) { | |
| 1034 memcpy(pal->colors + firstcolor, colors, | |
| 1035 ncolors * sizeof(*colors)); | |
| 1036 } | |
| 1037 | |
| 1038 vidpal = SDL_VideoSurface->format->palette; | |
| 1039 if ( (screen == SDL_ShadowSurface) && vidpal ) { | |
| 1040 /* | |
| 1041 * This is a shadow surface, and the physical | |
| 1042 * framebuffer is also indexed. Propagate the | |
| 1043 * changes to its logical palette so that | |
| 1044 * updates are always identity blits | |
| 1045 */ | |
| 1046 memcpy(vidpal->colors + firstcolor, colors, | |
| 1047 ncolors * sizeof(*colors)); | |
| 1048 } | |
| 1049 SDL_FormatChanged(screen); | |
| 1050 } | |
| 1051 | |
| 1052 static int SetPalette_physical(SDL_Surface *screen, | |
| 1053 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1054 { | |
| 1055 SDL_VideoDevice *video = current_video; | |
| 1056 int gotall = 1; | |
| 1057 | |
| 1058 if ( video->physpal ) { | |
| 1059 /* We need to copy the new colors, since we haven't | |
| 1060 * already done the copy in the logical set above. | |
| 1061 */ | |
| 1062 memcpy(video->physpal->colors + firstcolor, | |
| 1063 colors, ncolors * sizeof(*colors)); | |
| 1064 } | |
| 1065 if ( screen == SDL_ShadowSurface ) { | |
| 1066 if ( SDL_VideoSurface->flags & SDL_HWPALETTE ) { | |
| 1067 /* | |
| 1068 * The real screen is also indexed - set its physical | |
| 1069 * palette. The physical palette does not include the | |
| 1070 * gamma modification, we apply it directly instead, | |
| 1071 * but this only happens if we have hardware palette. | |
| 1072 */ | |
| 1073 screen = SDL_VideoSurface; | |
| 1074 } else { | |
| 1075 /* | |
| 1076 * The video surface is not indexed - invalidate any | |
| 1077 * active shadow-to-video blit mappings. | |
| 1078 */ | |
| 1079 if ( screen->map->dst == SDL_VideoSurface ) { | |
| 1080 SDL_InvalidateMap(screen->map); | |
| 1081 } | |
| 1082 if ( video->gamma ) { | |
| 1083 if( ! video->gammacols ) { | |
| 1084 SDL_Palette *pp = video->physpal; | |
| 1085 if(!pp) | |
| 1086 pp = screen->format->palette; | |
| 1087 video->gammacols = malloc(pp->ncolors | |
| 1088 * sizeof(SDL_Color)); | |
| 1089 SDL_ApplyGamma(video->gamma, | |
| 1090 pp->colors, | |
| 1091 video->gammacols, | |
| 1092 pp->ncolors); | |
| 1093 } else { | |
| 1094 SDL_ApplyGamma(video->gamma, colors, | |
| 1095 video->gammacols | |
| 1096 + firstcolor, | |
| 1097 ncolors); | |
| 1098 } | |
| 1099 } | |
| 1100 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1101 } | |
| 1102 } | |
| 1103 | |
| 1104 if ( screen == SDL_VideoSurface ) { | |
| 1105 SDL_Color gcolors[256]; | |
| 1106 | |
| 1107 if ( video->gamma ) { | |
| 1108 SDL_ApplyGamma(video->gamma, colors, gcolors, ncolors); | |
| 1109 colors = gcolors; | |
| 1110 } | |
| 1111 gotall = video->SetColors(video, firstcolor, ncolors, colors); | |
| 1112 if ( ! gotall ) { | |
| 1113 /* The video flags shouldn't have SDL_HWPALETTE, and | |
| 1114 the video driver is responsible for copying back the | |
| 1115 correct colors into the video surface palette. | |
| 1116 */ | |
| 1117 ; | |
| 1118 } | |
| 1119 SDL_CursorPaletteChanged(); | |
| 1120 } | |
| 1121 return gotall; | |
| 1122 } | |
| 1123 | |
| 1124 /* | |
| 1125 * Set the physical and/or logical colormap of a surface: | |
| 1126 * Only the screen has a physical colormap. It determines what is actually | |
| 1127 * sent to the display. | |
| 1128 * The logical colormap is used to map blits to/from the surface. | |
| 1129 * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL | |
| 1130 * | |
| 1131 * Return nonzero if all colours were set as requested, or 0 otherwise. | |
| 1132 */ | |
| 1133 int SDL_SetPalette(SDL_Surface *screen, int which, | |
| 1134 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1135 { | |
| 1136 SDL_Palette *pal; | |
| 1137 int gotall; | |
| 1138 int palsize; | |
| 1139 | |
| 34 | 1140 if ( ! current_video ) { |
| 1141 return 0; | |
| 1142 } | |
| 0 | 1143 if ( screen != SDL_PublicSurface ) { |
| 1144 /* only screens have physical palettes */ | |
| 1145 which &= ~SDL_PHYSPAL; | |
| 1146 } else if( (screen->flags & SDL_HWPALETTE) != SDL_HWPALETTE ) { | |
| 1147 /* hardware palettes required for split colormaps */ | |
| 1148 which |= SDL_PHYSPAL | SDL_LOGPAL; | |
| 1149 } | |
| 1150 | |
| 1151 /* Verify the parameters */ | |
| 1152 pal = screen->format->palette; | |
| 1153 if( !pal ) { | |
| 1154 return 0; /* not a palettized surface */ | |
| 1155 } | |
| 1156 gotall = 1; | |
| 1157 palsize = 1 << screen->format->BitsPerPixel; | |
| 1158 if ( ncolors > (palsize - firstcolor) ) { | |
| 1159 ncolors = (palsize - firstcolor); | |
| 1160 gotall = 0; | |
| 1161 } | |
| 1162 | |
| 1163 if ( which & SDL_LOGPAL ) { | |
| 1164 /* | |
| 1165 * Logical palette change: The actual screen isn't affected, | |
| 1166 * but the internal colormap is altered so that the | |
| 1167 * interpretation of the pixel values (for blits etc) is | |
| 1168 * changed. | |
| 1169 */ | |
| 1170 SetPalette_logical(screen, colors, firstcolor, ncolors); | |
| 1171 } | |
| 1172 if ( which & SDL_PHYSPAL ) { | |
| 1173 SDL_VideoDevice *video = current_video; | |
| 1174 /* | |
| 1175 * Physical palette change: This doesn't affect the | |
| 1176 * program's idea of what the screen looks like, but changes | |
| 1177 * its actual appearance. | |
| 1178 */ | |
| 1179 if(!video) | |
| 1180 return gotall; /* video not yet initialized */ | |
| 1181 if(!video->physpal && !(which & SDL_LOGPAL) ) { | |
| 1182 /* Lazy physical palette allocation */ | |
| 1183 int size; | |
| 1184 SDL_Palette *pp = malloc(sizeof(*pp)); | |
| 1185 current_video->physpal = pp; | |
| 1186 pp->ncolors = pal->ncolors; | |
| 1187 size = pp->ncolors * sizeof(SDL_Color); | |
| 1188 pp->colors = malloc(size); | |
| 1189 memcpy(pp->colors, pal->colors, size); | |
| 1190 } | |
| 1191 if ( ! SetPalette_physical(screen, | |
| 1192 colors, firstcolor, ncolors) ) { | |
| 1193 gotall = 0; | |
| 1194 } | |
| 1195 } | |
| 1196 return gotall; | |
| 1197 } | |
| 1198 | |
| 1199 int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor, | |
| 1200 int ncolors) | |
| 1201 { | |
| 1202 return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, | |
| 1203 colors, firstcolor, ncolors); | |
| 1204 } | |
| 1205 | |
| 1206 /* | |
| 1207 * Clean up the video subsystem | |
| 1208 */ | |
| 1209 void SDL_VideoQuit (void) | |
| 1210 { | |
| 1211 SDL_Surface *ready_to_go; | |
| 1212 | |
| 1213 if ( current_video ) { | |
| 1214 SDL_VideoDevice *video = current_video; | |
| 1215 SDL_VideoDevice *this = current_video; | |
| 1216 | |
| 1217 /* Halt event processing before doing anything else */ | |
| 1218 SDL_StopEventLoop(); | |
| 1219 | |
| 1220 /* Clean up allocated window manager items */ | |
| 1221 if ( SDL_PublicSurface ) { | |
| 1222 SDL_PublicSurface = NULL; | |
| 1223 } | |
| 1224 SDL_CursorQuit(); | |
| 1225 | |
| 1226 /* Just in case... */ | |
| 1227 SDL_WM_GrabInputOff(); | |
| 1228 | |
| 1229 /* Clean up the system video */ | |
| 1230 video->VideoQuit(this); | |
| 1231 | |
| 1232 /* Free any lingering surfaces */ | |
| 1233 ready_to_go = SDL_ShadowSurface; | |
| 1234 SDL_ShadowSurface = NULL; | |
| 1235 SDL_FreeSurface(ready_to_go); | |
| 1236 if ( SDL_VideoSurface != NULL ) { | |
| 1237 ready_to_go = SDL_VideoSurface; | |
| 1238 SDL_VideoSurface = NULL; | |
| 1239 SDL_FreeSurface(ready_to_go); | |
| 1240 } | |
| 1241 SDL_PublicSurface = NULL; | |
| 1242 | |
| 1243 /* Clean up miscellaneous memory */ | |
| 1244 if ( video->physpal ) { | |
| 1245 free(video->physpal->colors); | |
| 1246 free(video->physpal); | |
| 1247 video->physpal = NULL; | |
| 1248 } | |
| 1249 if ( video->gammacols ) { | |
| 1250 free(video->gammacols); | |
| 1251 video->gammacols = NULL; | |
| 1252 } | |
| 1253 if ( video->gamma ) { | |
| 1254 free(video->gamma); | |
| 1255 video->gamma = NULL; | |
| 1256 } | |
| 1257 if ( wm_title != NULL ) { | |
| 1258 free(wm_title); | |
| 1259 wm_title = NULL; | |
| 1260 } | |
| 1261 if ( wm_icon != NULL ) { | |
| 1262 free(wm_icon); | |
| 1263 wm_icon = NULL; | |
| 1264 } | |
| 1265 | |
| 1266 /* Finish cleaning up video subsystem */ | |
| 1267 video->free(this); | |
| 1268 current_video = NULL; | |
| 1269 } | |
| 1270 return; | |
| 1271 } | |
| 1272 | |
| 1273 /* Load the GL driver library */ | |
| 1274 int SDL_GL_LoadLibrary(const char *path) | |
| 1275 { | |
| 1276 SDL_VideoDevice *video = current_video; | |
| 1277 SDL_VideoDevice *this = current_video; | |
| 1278 int retval; | |
| 1279 | |
| 1280 retval = -1; | |
|
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1281 if ( video && video->GL_LoadLibrary ) { |
| 0 | 1282 retval = video->GL_LoadLibrary(this, path); |
| 1283 } else { | |
| 1284 SDL_SetError("No dynamic GL support in video driver"); | |
| 1285 } | |
| 1286 return(retval); | |
| 1287 } | |
| 1288 | |
| 1289 void *SDL_GL_GetProcAddress(const char* proc) | |
| 1290 { | |
| 1291 SDL_VideoDevice *video = current_video; | |
| 1292 SDL_VideoDevice *this = current_video; | |
| 1293 void *func; | |
| 1294 | |
| 1295 func = NULL; | |
| 1296 if ( video->GL_GetProcAddress ) { | |
| 1297 if ( video->gl_config.driver_loaded ) { | |
| 1298 func = video->GL_GetProcAddress(this, proc); | |
| 1299 } else { | |
| 1300 SDL_SetError("No GL driver has been loaded"); | |
| 1301 } | |
| 1302 } else { | |
| 1303 SDL_SetError("No dynamic GL support in video driver"); | |
| 1304 } | |
| 1305 return func; | |
| 1306 } | |
| 1307 | |
| 1308 /* Set the specified GL attribute for setting up a GL video mode */ | |
| 1309 int SDL_GL_SetAttribute( SDL_GLattr attr, int value ) | |
| 1310 { | |
| 1311 int retval; | |
| 1312 SDL_VideoDevice *video = current_video; | |
| 1313 | |
| 1314 retval = 0; | |
| 1315 switch (attr) { | |
| 1316 case SDL_GL_RED_SIZE: | |
| 1317 video->gl_config.red_size = value; | |
| 1318 break; | |
| 1319 case SDL_GL_GREEN_SIZE: | |
| 1320 video->gl_config.green_size = value; | |
| 1321 break; | |
| 1322 case SDL_GL_BLUE_SIZE: | |
| 1323 video->gl_config.blue_size = value; | |
| 1324 break; | |
| 1325 case SDL_GL_ALPHA_SIZE: | |
| 1326 video->gl_config.alpha_size = value; | |
| 1327 break; | |
| 1328 case SDL_GL_DOUBLEBUFFER: | |
| 1329 video->gl_config.double_buffer = value; | |
| 1330 break; | |
| 1331 case SDL_GL_BUFFER_SIZE: | |
| 1332 video->gl_config.buffer_size = value; | |
| 1333 break; | |
| 1334 case SDL_GL_DEPTH_SIZE: | |
| 1335 video->gl_config.depth_size = value; | |
| 1336 break; | |
| 1337 case SDL_GL_STENCIL_SIZE: | |
| 1338 video->gl_config.stencil_size = value; | |
| 1339 break; | |
| 1340 case SDL_GL_ACCUM_RED_SIZE: | |
| 1341 video->gl_config.accum_red_size = value; | |
| 1342 break; | |
| 1343 case SDL_GL_ACCUM_GREEN_SIZE: | |
| 1344 video->gl_config.accum_green_size = value; | |
| 1345 break; | |
| 1346 case SDL_GL_ACCUM_BLUE_SIZE: | |
| 1347 video->gl_config.accum_blue_size = value; | |
| 1348 break; | |
| 1349 case SDL_GL_ACCUM_ALPHA_SIZE: | |
| 1350 video->gl_config.accum_alpha_size = value; | |
| 1351 break; | |
| 1352 default: | |
| 1353 SDL_SetError("Unknown OpenGL attribute"); | |
| 1354 retval = -1; | |
| 1355 break; | |
| 1356 } | |
| 1357 return(retval); | |
| 1358 } | |
| 1359 | |
| 1360 /* Retrieve an attribute value from the windowing system. */ | |
| 1361 int SDL_GL_GetAttribute(SDL_GLattr attr, int* value) | |
| 1362 { | |
| 1363 int retval = -1; | |
| 1364 SDL_VideoDevice* video = current_video; | |
| 1365 SDL_VideoDevice* this = current_video; | |
| 1366 | |
| 1367 if ( video->GL_GetAttribute ) { | |
| 1368 retval = this->GL_GetAttribute(this, attr, value); | |
|
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1369 } else { |
|
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1370 *value = 0; |
|
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parents:
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|
1371 SDL_SetError("GL_GetAttribute not supported"); |
| 0 | 1372 } |
| 1373 return retval; | |
| 1374 } | |
| 1375 | |
| 1376 /* Perform a GL buffer swap on the current GL context */ | |
| 1377 void SDL_GL_SwapBuffers(void) | |
| 1378 { | |
| 1379 SDL_VideoDevice *video = current_video; | |
| 1380 SDL_VideoDevice *this = current_video; | |
| 1381 | |
| 1382 if ( video->screen->flags & SDL_OPENGL ) { | |
| 1383 video->GL_SwapBuffers( this ); | |
| 1384 } | |
| 1385 } | |
| 1386 | |
| 1387 /* Update rects with locking */ | |
| 1388 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect *rects) | |
| 1389 { | |
| 1390 SDL_GL_Lock(); | |
| 1391 SDL_GL_UpdateRects(numrects, rects); | |
| 1392 SDL_GL_Unlock(); | |
| 1393 } | |
| 1394 | |
| 1395 /* Update rects without state setting and changing (the caller is responsible for it) */ | |
| 1396 void SDL_GL_UpdateRects(int numrects, SDL_Rect *rects) | |
| 1397 { | |
| 1398 #ifdef HAVE_OPENGL | |
| 1399 SDL_VideoDevice *this = current_video; | |
| 1400 SDL_Rect update, tmp; | |
| 1401 int x, y, i; | |
| 1402 | |
| 1403 for ( i = 0; i < numrects; i++ ) | |
| 1404 { | |
| 1405 tmp.y = rects[i].y; | |
| 1406 tmp.h = rects[i].h; | |
| 1407 for ( y = 0; y <= rects[i].h / 256; y++ ) | |
| 1408 { | |
| 1409 tmp.x = rects[i].x; | |
| 1410 tmp.w = rects[i].w; | |
| 1411 for ( x = 0; x <= rects[i].w / 256; x++ ) | |
| 1412 { | |
| 1413 update.x = tmp.x; | |
| 1414 update.y = tmp.y; | |
| 1415 update.w = tmp.w; | |
| 1416 update.h = tmp.h; | |
| 1417 | |
| 1418 if ( update.w > 256 ) | |
| 1419 update.w = 256; | |
| 1420 | |
| 1421 if ( update.h > 256 ) | |
| 1422 update.h = 256; | |
| 1423 | |
| 1424 this->glFlush(); | |
| 1425 this->glTexSubImage2D( | |
| 1426 GL_TEXTURE_2D, | |
| 1427 0, | |
| 1428 0, | |
| 1429 0, | |
| 1430 update.w, | |
| 1431 update.h, | |
| 1432 this->is_32bit? GL_RGBA : GL_RGB, | |
| 1433 #ifdef GL_VERSION_1_2 | |
| 1434 this->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 1435 #else | |
| 1436 GL_UNSIGNED_BYTE, | |
| 1437 #endif | |
| 1438 (Uint8 *)this->screen->pixels + | |
| 1439 this->screen->format->BytesPerPixel * update.x + | |
| 1440 update.y * this->screen->pitch ); | |
| 1441 | |
| 1442 this->glFlush(); | |
| 1443 /* | |
| 1444 * Note the parens around the function name: | |
| 1445 * This is because some OpenGL implementations define glTexCoord etc | |
| 1446 * as macros, and we don't want them expanded here. | |
| 1447 */ | |
| 1448 this->glBegin(GL_TRIANGLE_STRIP); | |
| 1449 (this->glTexCoord2f)( 0.0, 0.0 ); | |
| 1450 (this->glVertex2i)( update.x, update.y ); | |
| 1451 (this->glTexCoord2f)( (float)(update.w / 256.0), 0.0 ); | |
| 1452 (this->glVertex2i)( update.x + update.w, update.y ); | |
| 1453 (this->glTexCoord2f)( 0.0, (float)(update.h / 256.0) ); | |
| 1454 (this->glVertex2i)( update.x, update.y + update.h ); | |
| 1455 (this->glTexCoord2f)( (float)(update.w / 256.0), (float)(update.h / 256.0) ); | |
| 1456 (this->glVertex2i)( update.x + update.w , update.y + update.h ); | |
| 1457 this->glEnd(); | |
| 1458 | |
| 1459 tmp.x += 256; | |
| 1460 tmp.w -= 256; | |
| 1461 } | |
| 1462 tmp.y += 256; | |
| 1463 tmp.h -= 256; | |
| 1464 } | |
| 1465 } | |
| 1466 #endif | |
| 1467 } | |
| 1468 | |
| 1469 /* Lock == save current state */ | |
| 1470 void SDL_GL_Lock() | |
| 1471 { | |
| 1472 #ifdef HAVE_OPENGL | |
| 1473 lock_count--; | |
| 1474 if (lock_count==-1) | |
| 1475 { | |
| 1476 SDL_VideoDevice *this = current_video; | |
| 1477 | |
| 1478 this->glPushAttrib( GL_ALL_ATTRIB_BITS ); /* TODO: narrow range of what is saved */ | |
| 1479 this->glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT ); | |
| 1480 | |
| 1481 this->glEnable(GL_TEXTURE_2D); | |
| 1482 this->glEnable(GL_BLEND); | |
| 1483 this->glDisable(GL_FOG); | |
| 1484 this->glDisable(GL_ALPHA_TEST); | |
| 1485 this->glDisable(GL_DEPTH_TEST); | |
| 1486 this->glDisable(GL_SCISSOR_TEST); | |
| 1487 this->glDisable(GL_STENCIL_TEST); | |
| 1488 this->glDisable(GL_CULL_FACE); | |
| 1489 | |
| 1490 this->glBindTexture( GL_TEXTURE_2D, this->texture ); | |
| 1491 this->glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); | |
| 1492 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); | |
| 1493 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); | |
| 1494 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); | |
| 1495 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT ); | |
| 1496 | |
| 1497 this->glPixelStorei( GL_UNPACK_ROW_LENGTH, this->screen->pitch / this->screen->format->BytesPerPixel ); | |
| 1498 this->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
| 1499 (this->glColor4f)(1.0, 1.0, 1.0, 1.0); /* Solaris workaround */ | |
| 1500 | |
| 1501 this->glViewport(0, 0, this->screen->w, this->screen->h); | |
| 1502 this->glMatrixMode(GL_PROJECTION); | |
| 1503 this->glPushMatrix(); | |
| 1504 this->glLoadIdentity(); | |
| 1505 | |
| 1506 this->glOrtho(0.0, (GLdouble) this->screen->w, (GLdouble) this->screen->h, 0.0, 0.0, 1.0); | |
| 1507 | |
| 1508 this->glMatrixMode(GL_MODELVIEW); | |
| 1509 this->glPushMatrix(); | |
| 1510 this->glLoadIdentity(); | |
| 1511 } | |
| 1512 #endif | |
| 1513 } | |
| 1514 | |
| 1515 /* Unlock == restore saved state */ | |
| 1516 void SDL_GL_Unlock() | |
| 1517 { | |
| 1518 #ifdef HAVE_OPENGL | |
| 1519 lock_count++; | |
| 1520 if (lock_count==0) | |
| 1521 { | |
| 1522 SDL_VideoDevice *this = current_video; | |
| 1523 | |
| 1524 this->glPopMatrix(); | |
| 1525 this->glMatrixMode(GL_PROJECTION); | |
| 1526 this->glPopMatrix(); | |
| 1527 | |
| 1528 this->glPopClientAttrib(); | |
| 1529 this->glPopAttrib(); | |
| 1530 } | |
| 1531 #endif | |
| 1532 } | |
| 1533 | |
| 1534 /* | |
| 1535 * Sets/Gets the title and icon text of the display window, if any. | |
| 1536 */ | |
| 1537 void SDL_WM_SetCaption (const char *title, const char *icon) | |
| 1538 { | |
| 1539 SDL_VideoDevice *video = current_video; | |
| 1540 SDL_VideoDevice *this = current_video; | |
| 1541 | |
| 1542 if ( title ) { | |
| 1543 if ( wm_title ) { | |
| 1544 free(wm_title); | |
| 1545 } | |
| 1546 wm_title = (char *)malloc(strlen(title)+1); | |
| 1547 if ( wm_title != NULL ) { | |
| 1548 strcpy(wm_title, title); | |
| 1549 } | |
| 1550 } | |
| 1551 if ( icon ) { | |
| 1552 if ( wm_icon ) { | |
| 1553 free(wm_icon); | |
| 1554 } | |
| 1555 wm_icon = (char *)malloc(strlen(icon)+1); | |
| 1556 if ( wm_icon != NULL ) { | |
| 1557 strcpy(wm_icon, icon); | |
| 1558 } | |
| 1559 } | |
| 1560 if ( (title || icon) && video && (video->SetCaption != NULL) ) { | |
| 1561 video->SetCaption(this, wm_title, wm_icon); | |
| 1562 } | |
| 1563 } | |
| 1564 void SDL_WM_GetCaption (char **title, char **icon) | |
| 1565 { | |
| 1566 if ( title ) { | |
| 1567 *title = wm_title; | |
| 1568 } | |
| 1569 if ( icon ) { | |
| 1570 *icon = wm_icon; | |
| 1571 } | |
| 1572 } | |
| 1573 | |
| 1574 /* Utility function used by SDL_WM_SetIcon() */ | |
| 1575 static void CreateMaskFromColorKey(SDL_Surface *icon, Uint8 *mask) | |
| 1576 { | |
| 1577 int x, y; | |
| 1578 Uint32 colorkey; | |
| 1579 #define SET_MASKBIT(icon, x, y, mask) \ | |
| 1580 mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8))) | |
| 1581 | |
| 1582 colorkey = icon->format->colorkey; | |
| 1583 switch (icon->format->BytesPerPixel) { | |
| 1584 case 1: { Uint8 *pixels; | |
| 1585 for ( y=0; y<icon->h; ++y ) { | |
| 1586 pixels = (Uint8 *)icon->pixels + y*icon->pitch; | |
| 1587 for ( x=0; x<icon->w; ++x ) { | |
| 1588 if ( *pixels++ == colorkey ) { | |
| 1589 SET_MASKBIT(icon, x, y, mask); | |
| 1590 } | |
| 1591 } | |
| 1592 } | |
| 1593 } | |
| 1594 break; | |
| 1595 | |
| 1596 case 2: { Uint16 *pixels; | |
| 1597 for ( y=0; y<icon->h; ++y ) { | |
| 1598 pixels = (Uint16 *)icon->pixels + | |
| 1599 y*icon->pitch/2; | |
| 1600 for ( x=0; x<icon->w; ++x ) { | |
| 1601 if ( *pixels++ == colorkey ) { | |
| 1602 SET_MASKBIT(icon, x, y, mask); | |
| 1603 } | |
| 1604 } | |
| 1605 } | |
| 1606 } | |
| 1607 break; | |
| 1608 | |
| 1609 case 4: { Uint32 *pixels; | |
| 1610 for ( y=0; y<icon->h; ++y ) { | |
| 1611 pixels = (Uint32 *)icon->pixels + | |
| 1612 y*icon->pitch/4; | |
| 1613 for ( x=0; x<icon->w; ++x ) { | |
| 1614 if ( *pixels++ == colorkey ) { | |
| 1615 SET_MASKBIT(icon, x, y, mask); | |
| 1616 } | |
| 1617 } | |
| 1618 } | |
| 1619 } | |
| 1620 break; | |
| 1621 } | |
| 1622 } | |
| 1623 | |
| 1624 /* | |
| 1625 * Sets the window manager icon for the display window. | |
| 1626 */ | |
| 1627 void SDL_WM_SetIcon (SDL_Surface *icon, Uint8 *mask) | |
| 1628 { | |
| 1629 SDL_VideoDevice *video = current_video; | |
| 1630 SDL_VideoDevice *this = current_video; | |
| 1631 | |
| 1632 if ( icon && video->SetIcon ) { | |
| 1633 /* Generate a mask if necessary, and create the icon! */ | |
| 1634 if ( mask == NULL ) { | |
| 1635 int mask_len = icon->h*(icon->w+7)/8; | |
| 1636 mask = (Uint8 *)malloc(mask_len); | |
| 1637 if ( mask == NULL ) { | |
| 1638 return; | |
| 1639 } | |
| 1640 memset(mask, ~0, mask_len); | |
| 1641 if ( icon->flags & SDL_SRCCOLORKEY ) { | |
| 1642 CreateMaskFromColorKey(icon, mask); | |
| 1643 } | |
| 1644 video->SetIcon(video, icon, mask); | |
| 1645 free(mask); | |
| 1646 } else { | |
| 1647 video->SetIcon(this, icon, mask); | |
| 1648 } | |
| 1649 } | |
| 1650 } | |
| 1651 | |
| 1652 /* | |
| 1653 * Grab or ungrab the keyboard and mouse input. | |
| 1654 * This function returns the final grab mode after calling the | |
| 1655 * driver dependent function. | |
| 1656 */ | |
| 1657 static SDL_GrabMode SDL_WM_GrabInputRaw(SDL_GrabMode mode) | |
| 1658 { | |
| 1659 SDL_VideoDevice *video = current_video; | |
| 1660 SDL_VideoDevice *this = current_video; | |
| 1661 | |
| 1662 /* Only do something if we have support for grabs */ | |
| 1663 if ( video->GrabInput == NULL ) { | |
| 1664 return(video->input_grab); | |
| 1665 } | |
| 1666 | |
| 1667 /* If the final grab mode if off, only then do we actually grab */ | |
| 1668 #ifdef DEBUG_GRAB | |
| 1669 printf("SDL_WM_GrabInputRaw(%d) ... ", mode); | |
| 1670 #endif | |
| 1671 if ( mode == SDL_GRAB_OFF ) { | |
| 1672 if ( video->input_grab != SDL_GRAB_OFF ) { | |
| 1673 mode = video->GrabInput(this, mode); | |
| 1674 } | |
| 1675 } else { | |
| 1676 if ( video->input_grab == SDL_GRAB_OFF ) { | |
| 1677 mode = video->GrabInput(this, mode); | |
| 1678 } | |
| 1679 } | |
| 1680 if ( mode != video->input_grab ) { | |
| 1681 video->input_grab = mode; | |
| 1682 if ( video->CheckMouseMode ) { | |
| 1683 video->CheckMouseMode(this); | |
| 1684 } | |
| 1685 } | |
| 1686 #ifdef DEBUG_GRAB | |
| 1687 printf("Final mode %d\n", video->input_grab); | |
| 1688 #endif | |
| 1689 | |
| 1690 /* Return the final grab state */ | |
| 1691 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1692 mode -= SDL_GRAB_FULLSCREEN; | |
| 1693 } | |
| 1694 return(mode); | |
| 1695 } | |
| 1696 SDL_GrabMode SDL_WM_GrabInput(SDL_GrabMode mode) | |
| 1697 { | |
| 1698 SDL_VideoDevice *video = current_video; | |
| 1699 | |
|
11
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parents:
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diff
changeset
|
1700 /* If the video isn't initialized yet, we can't do anything */ |
|
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parents:
7
diff
changeset
|
1701 if ( ! video ) { |
|
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Sam Lantinga <slouken@lokigames.com>
parents:
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|
1702 return SDL_GRAB_OFF; |
|
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Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
1703 } |
| 0 | 1704 |
| 1705 /* Return the current mode on query */ | |
| 1706 if ( mode == SDL_GRAB_QUERY ) { | |
| 1707 mode = video->input_grab; | |
| 1708 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1709 mode -= SDL_GRAB_FULLSCREEN; | |
| 1710 } | |
| 1711 return(mode); | |
| 1712 } | |
| 1713 | |
| 1714 #ifdef DEBUG_GRAB | |
| 1715 printf("SDL_WM_GrabInput(%d) ... ", mode); | |
| 1716 #endif | |
| 1717 /* If the video surface is fullscreen, we always grab */ | |
| 1718 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1719 mode -= SDL_GRAB_FULLSCREEN; | |
| 1720 } | |
| 1721 if ( SDL_VideoSurface && (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { | |
| 1722 mode += SDL_GRAB_FULLSCREEN; | |
| 1723 } | |
| 1724 return(SDL_WM_GrabInputRaw(mode)); | |
| 1725 } | |
| 1726 static SDL_GrabMode SDL_WM_GrabInputOff(void) | |
| 1727 { | |
| 1728 SDL_GrabMode mode; | |
| 1729 | |
| 1730 /* First query the current grab state */ | |
| 1731 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 1732 | |
| 1733 /* Now explicitly turn off input grab */ | |
| 1734 SDL_WM_GrabInputRaw(SDL_GRAB_OFF); | |
| 1735 | |
| 1736 /* Return the old state */ | |
| 1737 return(mode); | |
| 1738 } | |
| 1739 | |
| 1740 /* | |
| 1741 * Iconify the window in window managed environments. | |
| 1742 * A successful iconification will result in an SDL_APPACTIVE loss event. | |
| 1743 */ | |
| 1744 int SDL_WM_IconifyWindow(void) | |
| 1745 { | |
| 1746 SDL_VideoDevice *video = current_video; | |
| 1747 SDL_VideoDevice *this = current_video; | |
| 1748 int retval; | |
| 1749 | |
| 1750 retval = 0; | |
| 1751 if ( video->IconifyWindow ) { | |
| 1752 retval = video->IconifyWindow(this); | |
| 1753 } | |
| 1754 return(retval); | |
| 1755 } | |
| 1756 | |
| 1757 /* | |
| 1758 * Toggle fullscreen mode | |
| 1759 */ | |
| 1760 int SDL_WM_ToggleFullScreen(SDL_Surface *surface) | |
| 1761 { | |
| 1762 SDL_VideoDevice *video = current_video; | |
| 1763 SDL_VideoDevice *this = current_video; | |
| 1764 int toggled; | |
| 1765 | |
| 1766 toggled = 0; | |
| 1767 if ( SDL_PublicSurface && (surface == SDL_PublicSurface) && | |
| 1768 video->ToggleFullScreen ) { | |
| 1769 if ( surface->flags & SDL_FULLSCREEN ) { | |
| 1770 toggled = video->ToggleFullScreen(this, 0); | |
| 1771 if ( toggled ) { | |
| 1772 SDL_VideoSurface->flags &= ~SDL_FULLSCREEN; | |
| 1773 SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; | |
| 1774 } | |
| 1775 } else { | |
| 1776 toggled = video->ToggleFullScreen(this, 1); | |
| 1777 if ( toggled ) { | |
| 1778 SDL_VideoSurface->flags |= SDL_FULLSCREEN; | |
| 1779 SDL_PublicSurface->flags |= SDL_FULLSCREEN; | |
| 1780 } | |
| 1781 } | |
| 1782 /* Double-check the grab state inside SDL_WM_GrabInput() */ | |
| 1783 if ( toggled ) { | |
| 1784 SDL_WM_GrabInput(video->input_grab); | |
| 1785 } | |
| 1786 } | |
| 1787 return(toggled); | |
| 1788 } | |
| 1789 | |
| 1790 /* | |
| 1791 * Get some platform dependent window manager information | |
| 1792 */ | |
| 1793 int SDL_GetWMInfo (SDL_SysWMinfo *info) | |
| 1794 { | |
| 1795 SDL_VideoDevice *video = current_video; | |
| 1796 SDL_VideoDevice *this = current_video; | |
| 1797 | |
| 1798 if ( video && video->GetWMInfo ) { | |
| 1799 return(video->GetWMInfo(this, info)); | |
| 1800 } else { | |
| 1801 return(0); | |
| 1802 } | |
| 1803 } |