Mercurial > sdl-ios-xcode
annotate src/video/SDL_video.c @ 1076:8d3b95ece376
[PATCH] SDL_GetVideoMode() do not find the best video mode
The current GetVideoMode() function stops at the first mode which has any
dimensions smaller than the one asked, and gives the previous in the list.
If I ask 336x224 with this list:
768x480 768x240 640x400 640x200 384x480 384x240 320x400 320x200
SDL will give me 640x400, because 640x200 as height smaller than what I
asked.
However the best mode is the smaller which has both dimensions bigger
than the one asked (384x240 in my example).
This patch fixes this, plus it does not rely on a sorted video mode list.
| author | Patrice Mandin <patmandin@gmail.com> |
|---|---|
| date | Sun, 12 Jun 2005 16:12:55 +0000 |
| parents | 68f607298ca9 |
| children | 609c060fd2a2 |
| 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[] = { | |
| 48 #ifdef ENABLE_X11 | |
| 49 &X11_bootstrap, | |
| 50 #endif | |
| 51 #ifdef ENABLE_DGA | |
| 52 &DGA_bootstrap, | |
| 53 #endif | |
|
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54 #ifdef ENABLE_NANOX |
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55 &NX_bootstrap, |
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56 #endif |
| 567 | 57 #ifdef ENABLE_QTOPIA |
| 58 &Qtopia_bootstrap, | |
| 59 #endif | |
| 0 | 60 #ifdef ENABLE_FBCON |
| 61 &FBCON_bootstrap, | |
| 62 #endif | |
|
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63 #ifdef ENABLE_DIRECTFB |
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64 &DirectFB_bootstrap, |
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65 #endif |
| 0 | 66 #ifdef ENABLE_PS2GS |
| 67 &PS2GS_bootstrap, | |
| 68 #endif | |
| 69 #ifdef ENABLE_GGI | |
| 70 &GGI_bootstrap, | |
| 71 #endif | |
|
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72 #ifdef ENABLE_VGL |
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73 &VGL_bootstrap, |
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74 #endif |
| 0 | 75 #ifdef ENABLE_SVGALIB |
| 76 &SVGALIB_bootstrap, | |
| 77 #endif | |
| 78 #ifdef ENABLE_AALIB | |
|
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79 &AALIB_bootstrap, |
| 0 | 80 #endif |
| 81 #ifdef ENABLE_DIRECTX | |
| 82 &DIRECTX_bootstrap, | |
| 83 #endif | |
| 84 #ifdef ENABLE_WINDIB | |
| 85 &WINDIB_bootstrap, | |
| 86 #endif | |
| 87 #ifdef ENABLE_BWINDOW | |
| 88 &BWINDOW_bootstrap, | |
| 89 #endif | |
| 90 #ifdef ENABLE_TOOLBOX | |
| 91 &TOOLBOX_bootstrap, | |
| 92 #endif | |
| 93 #ifdef ENABLE_DRAWSPROCKET | |
| 94 &DSp_bootstrap, | |
| 95 #endif | |
|
47
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96 #ifdef ENABLE_QUARTZ |
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97 &QZ_bootstrap, |
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98 #endif |
| 0 | 99 #ifdef ENABLE_CYBERGRAPHICS |
| 100 &CGX_bootstrap, | |
| 101 #endif | |
|
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102 #ifdef ENABLE_PHOTON |
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103 &ph_bootstrap, |
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104 #endif |
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105 #ifdef ENABLE_EPOC |
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106 &EPOC_bootstrap, |
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107 #endif |
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108 #ifdef ENABLE_XBIOS |
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109 &XBIOS_bootstrap, |
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110 #endif |
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111 #ifdef ENABLE_GEM |
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112 &GEM_bootstrap, |
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113 #endif |
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114 #ifdef ENABLE_PICOGUI |
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115 &PG_bootstrap, |
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116 #endif |
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117 #ifdef ENABLE_DC |
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118 &DC_bootstrap, |
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119 #endif |
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120 #ifdef ENABLE_RISCOS |
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121 &RISCOS_bootstrap, |
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122 #endif |
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123 #ifdef ENABLE_DUMMYVIDEO |
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124 &DUMMY_bootstrap, |
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125 #endif |
| 0 | 126 NULL |
| 127 }; | |
|
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128 |
| 0 | 129 SDL_VideoDevice *current_video = NULL; |
| 130 | |
| 131 /* Various local functions */ | |
| 132 int SDL_VideoInit(const char *driver_name, Uint32 flags); | |
| 133 void SDL_VideoQuit(void); | |
| 134 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect* rects); | |
| 135 | |
| 136 static SDL_GrabMode SDL_WM_GrabInputOff(void); | |
| 137 #ifdef HAVE_OPENGL | |
| 138 static int lock_count = 0; | |
| 139 #endif | |
| 140 | |
| 141 | |
| 142 /* | |
| 143 * Initialize the video and event subsystems -- determine native pixel format | |
| 144 */ | |
| 145 int SDL_VideoInit (const char *driver_name, Uint32 flags) | |
| 146 { | |
| 147 SDL_VideoDevice *video; | |
| 148 int index; | |
| 149 int i; | |
| 150 SDL_PixelFormat vformat; | |
| 151 Uint32 video_flags; | |
| 152 | |
| 153 /* Toggle the event thread flags, based on OS requirements */ | |
| 154 #if defined(MUST_THREAD_EVENTS) | |
| 155 flags |= SDL_INIT_EVENTTHREAD; | |
| 156 #elif defined(CANT_THREAD_EVENTS) | |
| 157 if ( (flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD ) { | |
| 158 SDL_SetError("OS doesn't support threaded events"); | |
| 159 return(-1); | |
| 160 } | |
| 161 #endif | |
| 162 | |
| 163 /* Check to make sure we don't overwrite 'current_video' */ | |
| 164 if ( current_video != NULL ) { | |
| 165 SDL_VideoQuit(); | |
| 166 } | |
| 167 | |
| 168 /* Select the proper video driver */ | |
| 169 index = 0; | |
| 170 video = NULL; | |
| 171 if ( driver_name != NULL ) { | |
| 172 #if 0 /* This will be replaced with a better driver selection API */ | |
| 173 if ( strrchr(driver_name, ':') != NULL ) { | |
| 174 index = atoi(strrchr(driver_name, ':')+1); | |
| 175 } | |
| 176 #endif | |
| 177 for ( i=0; bootstrap[i]; ++i ) { | |
| 178 if ( strncmp(bootstrap[i]->name, driver_name, | |
| 179 strlen(bootstrap[i]->name)) == 0 ) { | |
| 180 if ( bootstrap[i]->available() ) { | |
| 181 video = bootstrap[i]->create(index); | |
| 182 break; | |
| 183 } | |
| 184 } | |
| 185 } | |
| 186 } else { | |
| 187 for ( i=0; bootstrap[i]; ++i ) { | |
| 188 if ( bootstrap[i]->available() ) { | |
| 189 video = bootstrap[i]->create(index); | |
| 190 if ( video != NULL ) { | |
| 191 break; | |
| 192 } | |
| 193 } | |
| 194 } | |
| 195 } | |
| 196 if ( video == NULL ) { | |
| 197 SDL_SetError("No available video device"); | |
| 198 return(-1); | |
| 199 } | |
| 200 current_video = video; | |
| 201 current_video->name = bootstrap[i]->name; | |
| 202 | |
| 203 /* Do some basic variable initialization */ | |
| 204 video->screen = NULL; | |
| 205 video->shadow = NULL; | |
| 206 video->visible = NULL; | |
| 207 video->physpal = NULL; | |
| 208 video->gammacols = NULL; | |
| 209 video->gamma = NULL; | |
| 210 video->wm_title = NULL; | |
| 211 video->wm_icon = NULL; | |
| 212 video->offset_x = 0; | |
| 213 video->offset_y = 0; | |
| 214 memset(&video->info, 0, (sizeof video->info)); | |
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215 |
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216 video->displayformatalphapixel = NULL; |
| 0 | 217 |
| 218 /* Set some very sane GL defaults */ | |
| 219 video->gl_config.driver_loaded = 0; | |
| 220 video->gl_config.dll_handle = NULL; | |
| 221 video->gl_config.red_size = 5; | |
| 222 #if 1 /* This seems to work on more video cards, as a default */ | |
| 223 video->gl_config.green_size = 5; | |
| 224 #else | |
| 225 video->gl_config.green_size = 6; | |
| 226 #endif | |
| 227 video->gl_config.blue_size = 5; | |
| 228 video->gl_config.alpha_size = 0; | |
| 229 video->gl_config.buffer_size = 0; | |
| 230 video->gl_config.depth_size = 16; | |
| 231 video->gl_config.stencil_size = 0; | |
| 232 video->gl_config.double_buffer = 1; | |
| 233 video->gl_config.accum_red_size = 0; | |
| 234 video->gl_config.accum_green_size = 0; | |
| 235 video->gl_config.accum_blue_size = 0; | |
| 236 video->gl_config.accum_alpha_size = 0; | |
|
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237 video->gl_config.stereo = 0; |
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238 video->gl_config.multisamplebuffers = 0; |
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239 video->gl_config.multisamplesamples = 0; |
| 0 | 240 |
| 241 /* Initialize the video subsystem */ | |
| 242 memset(&vformat, 0, sizeof(vformat)); | |
| 243 if ( video->VideoInit(video, &vformat) < 0 ) { | |
| 244 SDL_VideoQuit(); | |
| 245 return(-1); | |
| 246 } | |
| 247 | |
| 248 /* Create a zero sized video surface of the appropriate format */ | |
| 249 video_flags = SDL_SWSURFACE; | |
| 250 SDL_VideoSurface = SDL_CreateRGBSurface(video_flags, 0, 0, | |
| 251 vformat.BitsPerPixel, | |
| 252 vformat.Rmask, vformat.Gmask, vformat.Bmask, 0); | |
| 253 if ( SDL_VideoSurface == NULL ) { | |
| 254 SDL_VideoQuit(); | |
| 255 return(-1); | |
| 256 } | |
| 257 SDL_PublicSurface = NULL; /* Until SDL_SetVideoMode() */ | |
| 258 | |
| 259 #if 0 /* Don't change the current palette - may be used by other programs. | |
| 260 * The application can't do anything with the display surface until | |
| 261 * a video mode has been set anyway. :) | |
| 262 */ | |
| 263 /* If we have a palettized surface, create a default palette */ | |
| 264 if ( SDL_VideoSurface->format->palette ) { | |
|
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265 SDL_PixelFormat *vf = SDL_VideoSurface->format; |
| 0 | 266 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 267 video->SetColors(video, | |
| 268 0, vf->palette->ncolors, vf->palette->colors); | |
| 269 } | |
| 270 #endif | |
| 271 video->info.vfmt = SDL_VideoSurface->format; | |
| 272 | |
| 273 /* Start the event loop */ | |
| 274 if ( SDL_StartEventLoop(flags) < 0 ) { | |
| 275 SDL_VideoQuit(); | |
| 276 return(-1); | |
| 277 } | |
| 278 SDL_CursorInit(flags & SDL_INIT_EVENTTHREAD); | |
| 279 | |
| 280 /* We're ready to go! */ | |
| 281 return(0); | |
| 282 } | |
| 283 | |
| 284 char *SDL_VideoDriverName(char *namebuf, int maxlen) | |
| 285 { | |
| 286 if ( current_video != NULL ) { | |
| 287 strncpy(namebuf, current_video->name, maxlen-1); | |
| 288 namebuf[maxlen-1] = '\0'; | |
| 289 return(namebuf); | |
| 290 } | |
| 291 return(NULL); | |
| 292 } | |
| 293 | |
| 294 /* | |
| 295 * Get the current display surface | |
| 296 */ | |
| 297 SDL_Surface *SDL_GetVideoSurface(void) | |
| 298 { | |
| 299 SDL_Surface *visible; | |
| 300 | |
| 301 visible = NULL; | |
| 302 if ( current_video ) { | |
| 303 visible = current_video->visible; | |
| 304 } | |
| 305 return(visible); | |
| 306 } | |
| 307 | |
| 308 /* | |
| 309 * Get the current information about the video hardware | |
| 310 */ | |
| 311 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
| 312 { | |
| 313 const SDL_VideoInfo *info; | |
| 314 | |
| 315 info = NULL; | |
| 316 if ( current_video ) { | |
| 317 info = ¤t_video->info; | |
| 318 } | |
| 319 return(info); | |
| 320 } | |
| 321 | |
| 322 /* | |
| 323 * Return a pointer to an array of available screen dimensions for the | |
| 324 * given format, sorted largest to smallest. Returns NULL if there are | |
| 325 * no dimensions available for a particular format, or (SDL_Rect **)-1 | |
| 326 * if any dimension is okay for the given format. If 'format' is NULL, | |
| 327 * the mode list will be for the format given by SDL_GetVideoInfo()->vfmt | |
| 328 */ | |
| 329 SDL_Rect ** SDL_ListModes (SDL_PixelFormat *format, Uint32 flags) | |
| 330 { | |
| 331 SDL_VideoDevice *video = current_video; | |
| 332 SDL_VideoDevice *this = current_video; | |
| 333 SDL_Rect **modes; | |
| 334 | |
| 335 modes = NULL; | |
| 336 if ( SDL_VideoSurface ) { | |
| 337 if ( format == NULL ) { | |
| 338 format = SDL_VideoSurface->format; | |
| 339 } | |
| 340 modes = video->ListModes(this, format, flags); | |
| 341 } | |
| 342 return(modes); | |
| 343 } | |
| 344 | |
| 345 /* | |
| 346 * Check to see if a particular video mode is supported. | |
| 347 * It returns 0 if the requested mode is not supported under any bit depth, | |
| 348 * or returns the bits-per-pixel of the closest available mode with the | |
| 349 * given width and height. If this bits-per-pixel is different from the | |
| 350 * one used when setting the video mode, SDL_SetVideoMode() will succeed, | |
| 351 * but will emulate the requested bits-per-pixel with a shadow surface. | |
| 352 */ | |
| 353 static Uint8 SDL_closest_depths[4][8] = { | |
| 354 /* 8 bit closest depth ordering */ | |
| 355 { 0, 8, 16, 15, 32, 24, 0, 0 }, | |
| 356 /* 15,16 bit closest depth ordering */ | |
| 357 { 0, 16, 15, 32, 24, 8, 0, 0 }, | |
| 358 /* 24 bit closest depth ordering */ | |
| 359 { 0, 24, 32, 16, 15, 8, 0, 0 }, | |
| 360 /* 32 bit closest depth ordering */ | |
| 361 { 0, 32, 16, 15, 24, 8, 0, 0 } | |
| 362 }; | |
| 363 | |
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364 |
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365 #ifdef macintosh /* MPW optimization bug? */ |
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366 #define NEGATIVE_ONE 0xFFFFFFFF |
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367 #else |
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368 #define NEGATIVE_ONE -1 |
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369 #endif |
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370 |
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371 int SDL_VideoModeOK (int width, int height, int bpp, Uint32 flags) |
| 0 | 372 { |
| 373 int table, b, i; | |
| 374 int supported; | |
| 375 SDL_PixelFormat format; | |
| 376 SDL_Rect **sizes; | |
| 377 | |
| 378 /* Currently 1 and 4 bpp are not supported */ | |
| 379 if ( bpp < 8 || bpp > 32 ) { | |
| 380 return(0); | |
| 381 } | |
|
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|
382 if ( (width <= 0) || (height <= 0) ) { |
| 0 | 383 return(0); |
| 384 } | |
| 385 | |
| 386 /* Search through the list valid of modes */ | |
| 387 memset(&format, 0, sizeof(format)); | |
| 388 supported = 0; | |
| 389 table = ((bpp+7)/8)-1; | |
| 390 SDL_closest_depths[table][0] = bpp; | |
| 391 SDL_closest_depths[table][7] = 0; | |
| 392 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 393 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 394 sizes = SDL_ListModes(&format, flags); | |
| 395 if ( sizes == (SDL_Rect **)0 ) { | |
| 396 /* No sizes supported at this bit-depth */ | |
| 397 continue; | |
| 398 } else | |
|
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399 if (sizes == (SDL_Rect **)NEGATIVE_ONE) { |
| 0 | 400 /* Any size supported at this bit-depth */ |
| 401 supported = 1; | |
| 402 continue; | |
|
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403 } else if (current_video->handles_any_size) { |
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404 /* Driver can center a smaller surface to simulate fullscreen */ |
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405 for ( i=0; sizes[i]; ++i ) { |
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406 if ((sizes[i]->w >= width) && (sizes[i]->h >= height)) { |
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407 supported = 1; /* this mode can fit the centered window. */ |
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408 break; |
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409 } |
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410 } |
| 0 | 411 } else |
| 412 for ( i=0; sizes[i]; ++i ) { | |
| 413 if ((sizes[i]->w == width) && (sizes[i]->h == height)) { | |
| 414 supported = 1; | |
| 415 break; | |
| 416 } | |
| 417 } | |
| 418 } | |
| 419 if ( supported ) { | |
| 420 --b; | |
| 421 return(SDL_closest_depths[table][b]); | |
| 422 } else { | |
| 423 return(0); | |
| 424 } | |
| 425 } | |
| 426 | |
| 427 /* | |
| 428 * Get the closest non-emulated video mode to the one requested | |
| 429 */ | |
| 430 static int SDL_GetVideoMode (int *w, int *h, int *BitsPerPixel, Uint32 flags) | |
| 431 { | |
| 432 int table, b, i; | |
| 433 int supported; | |
| 434 int native_bpp; | |
| 435 SDL_PixelFormat format; | |
| 436 SDL_Rect **sizes; | |
| 437 | |
|
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Fixed crash with invalid bpp in SDL_SetVideoMode()
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438 /* Check parameters */ |
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439 if ( *BitsPerPixel < 8 || *BitsPerPixel > 32 ) { |
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440 SDL_SetError("Invalid bits per pixel (range is {8...32})"); |
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441 return(0); |
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442 } |
|
430
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443 if ((*w <= 0) || (*h <= 0)) { |
|
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444 SDL_SetError("Invalid width or height"); |
|
430
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445 return(0); |
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446 } |
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447 |
| 0 | 448 /* Try the original video mode, get the closest depth */ |
| 449 native_bpp = SDL_VideoModeOK(*w, *h, *BitsPerPixel, flags); | |
| 450 if ( native_bpp == *BitsPerPixel ) { | |
| 451 return(1); | |
| 452 } | |
| 453 if ( native_bpp > 0 ) { | |
| 454 *BitsPerPixel = native_bpp; | |
| 455 return(1); | |
| 456 } | |
| 457 | |
| 458 /* No exact size match at any depth, look for closest match */ | |
| 459 memset(&format, 0, sizeof(format)); | |
| 460 supported = 0; | |
| 461 table = ((*BitsPerPixel+7)/8)-1; | |
| 462 SDL_closest_depths[table][0] = *BitsPerPixel; | |
| 463 SDL_closest_depths[table][7] = SDL_VideoSurface->format->BitsPerPixel; | |
| 464 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
|
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465 int best; |
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466 |
| 0 | 467 format.BitsPerPixel = SDL_closest_depths[table][b]; |
| 468 sizes = SDL_ListModes(&format, flags); | |
| 469 if ( sizes == (SDL_Rect **)0 ) { | |
| 470 /* No sizes supported at this bit-depth */ | |
| 471 continue; | |
| 472 } | |
|
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473 best=0; |
| 0 | 474 for ( i=0; sizes[i]; ++i ) { |
|
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475 /* Mode with both dimensions bigger or equal than asked ? */ |
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476 if ((sizes[i]->w >= *w) && (sizes[i]->h >= *h)) { |
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477 /* Mode with any dimension smaller or equal than current best ? */ |
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478 if ((sizes[i]->w <= sizes[best]->w) || (sizes[i]->h <= sizes[best]->h)) { |
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479 best=i; |
| 0 | 480 supported = 1; |
| 481 } | |
| 482 } | |
| 483 } | |
|
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484 if (supported) { |
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485 *w=sizes[best]->w; |
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486 *h=sizes[best]->h; |
| 0 | 487 *BitsPerPixel = SDL_closest_depths[table][b]; |
| 488 } | |
| 489 } | |
| 490 if ( ! supported ) { | |
| 491 SDL_SetError("No video mode large enough for %dx%d", *w, *h); | |
| 492 } | |
| 493 return(supported); | |
| 494 } | |
| 495 | |
| 496 /* This should probably go somewhere else -- like SDL_surface.c */ | |
| 497 static void SDL_ClearSurface(SDL_Surface *surface) | |
| 498 { | |
| 499 Uint32 black; | |
| 500 | |
| 501 black = SDL_MapRGB(surface->format, 0, 0, 0); | |
| 502 SDL_FillRect(surface, NULL, black); | |
| 503 if ((surface->flags&SDL_HWSURFACE) && (surface->flags&SDL_DOUBLEBUF)) { | |
| 504 SDL_Flip(surface); | |
| 505 SDL_FillRect(surface, NULL, black); | |
| 506 } | |
| 507 SDL_Flip(surface); | |
| 508 } | |
| 509 | |
| 510 /* | |
| 511 * Create a shadow surface suitable for fooling the app. :-) | |
| 512 */ | |
| 513 static void SDL_CreateShadowSurface(int depth) | |
| 514 { | |
| 515 Uint32 Rmask, Gmask, Bmask; | |
| 516 | |
| 517 /* Allocate the shadow surface */ | |
| 518 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 519 Rmask = (SDL_VideoSurface->format)->Rmask; | |
| 520 Gmask = (SDL_VideoSurface->format)->Gmask; | |
| 521 Bmask = (SDL_VideoSurface->format)->Bmask; | |
| 522 } else { | |
| 523 Rmask = Gmask = Bmask = 0; | |
| 524 } | |
| 525 SDL_ShadowSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
| 526 SDL_VideoSurface->w, SDL_VideoSurface->h, | |
| 527 depth, Rmask, Gmask, Bmask, 0); | |
| 528 if ( SDL_ShadowSurface == NULL ) { | |
| 529 return; | |
| 530 } | |
| 531 | |
| 532 /* 8-bit shadow surfaces report that they have exclusive palette */ | |
| 533 if ( SDL_ShadowSurface->format->palette ) { | |
| 534 SDL_ShadowSurface->flags |= SDL_HWPALETTE; | |
| 535 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 536 memcpy(SDL_ShadowSurface->format->palette->colors, | |
| 537 SDL_VideoSurface->format->palette->colors, | |
| 538 SDL_VideoSurface->format->palette->ncolors* | |
| 539 sizeof(SDL_Color)); | |
| 540 } else { | |
| 541 SDL_DitherColors( | |
| 542 SDL_ShadowSurface->format->palette->colors, depth); | |
| 543 } | |
| 544 } | |
| 545 | |
| 546 /* If the video surface is resizable, the shadow should say so */ | |
| 547 if ( (SDL_VideoSurface->flags & SDL_RESIZABLE) == SDL_RESIZABLE ) { | |
| 548 SDL_ShadowSurface->flags |= SDL_RESIZABLE; | |
| 549 } | |
| 550 /* If the video surface has no frame, the shadow should say so */ | |
| 551 if ( (SDL_VideoSurface->flags & SDL_NOFRAME) == SDL_NOFRAME ) { | |
| 552 SDL_ShadowSurface->flags |= SDL_NOFRAME; | |
| 553 } | |
| 554 /* If the video surface is fullscreen, the shadow should say so */ | |
| 555 if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 556 SDL_ShadowSurface->flags |= SDL_FULLSCREEN; | |
| 557 } | |
| 558 /* If the video surface is flippable, the shadow should say so */ | |
| 559 if ( (SDL_VideoSurface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 560 SDL_ShadowSurface->flags |= SDL_DOUBLEBUF; | |
| 561 } | |
| 562 return; | |
| 563 } | |
| 564 | |
|
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565 #ifdef __QNXNTO__ |
|
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566 #include <sys/neutrino.h> |
|
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567 #endif /* __QNXNTO__ */ |
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568 |
| 0 | 569 /* |
| 570 * Set the requested video mode, allocating a shadow buffer if necessary. | |
| 571 */ | |
| 572 SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags) | |
| 573 { | |
| 574 SDL_VideoDevice *video, *this; | |
| 575 SDL_Surface *prev_mode, *mode; | |
| 576 int video_w; | |
| 577 int video_h; | |
| 578 int video_bpp; | |
| 579 int is_opengl; | |
| 580 SDL_GrabMode saved_grab; | |
| 581 | |
| 582 /* Start up the video driver, if necessary.. | |
| 583 WARNING: This is the only function protected this way! | |
| 584 */ | |
| 585 if ( ! current_video ) { | |
| 586 if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE) < 0 ) { | |
| 587 return(NULL); | |
| 588 } | |
| 589 } | |
| 590 this = video = current_video; | |
| 591 | |
| 592 /* Default to the current video bpp */ | |
| 593 if ( bpp == 0 ) { | |
| 594 flags |= SDL_ANYFORMAT; | |
| 595 bpp = SDL_VideoSurface->format->BitsPerPixel; | |
| 596 } | |
| 597 | |
| 598 /* Get a good video mode, the closest one possible */ | |
| 599 video_w = width; | |
| 600 video_h = height; | |
| 601 video_bpp = bpp; | |
| 602 if ( ! SDL_GetVideoMode(&video_w, &video_h, &video_bpp, flags) ) { | |
| 603 return(NULL); | |
| 604 } | |
| 605 | |
| 606 /* Check the requested flags */ | |
| 607 /* There's no palette in > 8 bits-per-pixel mode */ | |
| 608 if ( video_bpp > 8 ) { | |
| 609 flags &= ~SDL_HWPALETTE; | |
| 610 } | |
| 611 #if 0 | |
| 612 if ( (flags&SDL_FULLSCREEN) != SDL_FULLSCREEN ) { | |
| 613 /* There's no windowed double-buffering */ | |
| 614 flags &= ~SDL_DOUBLEBUF; | |
| 615 } | |
| 616 #endif | |
| 617 if ( (flags&SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 618 /* Use hardware surfaces when double-buffering */ | |
| 619 flags |= SDL_HWSURFACE; | |
| 620 } | |
| 621 | |
| 622 is_opengl = ( ( flags & SDL_OPENGL ) == SDL_OPENGL ); | |
| 623 if ( is_opengl ) { | |
| 624 /* These flags are for 2D video modes only */ | |
| 625 flags &= ~(SDL_HWSURFACE|SDL_DOUBLEBUF); | |
| 626 } | |
| 627 | |
|
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Fixed stuck keys when changing the video mode
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diff
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628 /* 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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629 SDL_ResetKeyboard(); |
|
460
a888b3ae31ff
Reset mouse state when changing video modes
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diff
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630 SDL_ResetMouse(); |
|
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changeset
|
631 |
| 0 | 632 /* Clean up any previous video mode */ |
| 633 if ( SDL_PublicSurface != NULL ) { | |
| 634 SDL_PublicSurface = NULL; | |
| 635 } | |
| 636 if ( SDL_ShadowSurface != NULL ) { | |
| 637 SDL_Surface *ready_to_go; | |
| 638 ready_to_go = SDL_ShadowSurface; | |
| 639 SDL_ShadowSurface = NULL; | |
| 640 SDL_FreeSurface(ready_to_go); | |
| 641 } | |
| 642 if ( video->physpal ) { | |
| 643 free(video->physpal->colors); | |
| 644 free(video->physpal); | |
| 645 video->physpal = NULL; | |
| 646 } | |
| 647 if( video->gammacols) { | |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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parents:
656
diff
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648 free(video->gammacols); |
| 0 | 649 video->gammacols = NULL; |
| 650 } | |
| 651 | |
| 652 /* Save the previous grab state and turn off grab for mode switch */ | |
| 653 saved_grab = SDL_WM_GrabInputOff(); | |
| 654 | |
| 655 /* Try to set the video mode, along with offset and clipping */ | |
| 656 prev_mode = SDL_VideoSurface; | |
| 657 SDL_LockCursor(); | |
| 658 SDL_VideoSurface = NULL; /* In case it's freed by driver */ | |
| 659 mode = video->SetVideoMode(this, prev_mode,video_w,video_h,video_bpp,flags); | |
| 660 if ( mode ) { /* Prevent resize events from mode change */ | |
| 661 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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parents:
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diff
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662 |
|
4d24d5a660a8
Fix a crash if an OpenGL video mode can't be set.
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663 /* 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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664 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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665 mode = NULL; |
|
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50f5a29c6a17
Date: Sat, 10 Apr 2004 02:25:33 -0400
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parents:
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666 SDL_SetError("OpenGL not available"); |
|
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667 } |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
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|
668 } |
| 0 | 669 /* |
| 670 * rcg11292000 | |
| 671 * If you try to set an SDL_OPENGL surface, and fail to find a | |
| 672 * matching visual, then the next call to SDL_SetVideoMode() | |
| 673 * will segfault, since we no longer point to a dummy surface, | |
| 674 * but rather NULL. | |
| 675 * Sam 11/29/00 | |
| 676 * WARNING, we need to make sure that the previous mode hasn't | |
| 677 * already been freed by the video driver. What do we do in | |
| 678 * that case? Should we call SDL_VideoInit() again? | |
| 679 */ | |
| 680 SDL_VideoSurface = (mode != NULL) ? mode : prev_mode; | |
| 681 | |
| 682 if ( (mode != NULL) && (!is_opengl) ) { | |
| 683 /* Sanity check */ | |
| 684 if ( (mode->w < width) || (mode->h < height) ) { | |
| 685 SDL_SetError("Video mode smaller than requested"); | |
| 686 return(NULL); | |
| 687 } | |
| 688 | |
| 689 /* If we have a palettized surface, create a default palette */ | |
| 690 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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|
691 SDL_PixelFormat *vf = mode->format; |
| 0 | 692 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 693 video->SetColors(this, 0, vf->palette->ncolors, | |
| 694 vf->palette->colors); | |
| 695 } | |
| 696 | |
| 697 /* Clear the surface to black */ | |
| 698 video->offset_x = 0; | |
| 699 video->offset_y = 0; | |
| 700 mode->offset = 0; | |
| 701 SDL_SetClipRect(mode, NULL); | |
| 702 SDL_ClearSurface(mode); | |
| 703 | |
| 704 /* Now adjust the offsets to match the desired mode */ | |
| 705 video->offset_x = (mode->w-width)/2; | |
| 706 video->offset_y = (mode->h-height)/2; | |
| 707 mode->offset = video->offset_y*mode->pitch + | |
| 708 video->offset_x*mode->format->BytesPerPixel; | |
| 709 #ifdef DEBUG_VIDEO | |
| 710 fprintf(stderr, | |
| 711 "Requested mode: %dx%dx%d, obtained mode %dx%dx%d (offset %d)\n", | |
| 712 width, height, bpp, | |
| 713 mode->w, mode->h, mode->format->BitsPerPixel, mode->offset); | |
| 714 #endif | |
| 715 mode->w = width; | |
| 716 mode->h = height; | |
| 717 SDL_SetClipRect(mode, NULL); | |
| 718 } | |
| 719 SDL_ResetCursor(); | |
| 720 SDL_UnlockCursor(); | |
| 721 | |
| 722 /* If we failed setting a video mode, return NULL... (Uh Oh!) */ | |
| 723 if ( mode == NULL ) { | |
| 724 return(NULL); | |
| 725 } | |
| 726 | |
| 727 /* If there is no window manager, set the SDL_NOFRAME flag */ | |
| 728 if ( ! video->info.wm_available ) { | |
| 729 mode->flags |= SDL_NOFRAME; | |
| 730 } | |
| 731 | |
| 732 /* Reset the mouse cursor and grab for new video mode */ | |
| 733 SDL_SetCursor(NULL); | |
| 734 if ( video->UpdateMouse ) { | |
| 735 video->UpdateMouse(this); | |
| 736 } | |
| 737 SDL_WM_GrabInput(saved_grab); | |
| 738 SDL_GetRelativeMouseState(NULL, NULL); /* Clear first large delta */ | |
| 739 | |
|
650
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|
740 #ifdef HAVE_OPENGL |
|
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|
741 /* Load GL symbols (before MakeCurrent, where we need glGetString). */ |
|
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|
742 if ( flags & (SDL_OPENGL | SDL_OPENGLBLIT) ) { |
|
910
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|
743 |
|
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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|
744 #if defined(__QNXNTO__) && (_NTO_VERSION < 630) |
|
916
46916168361d
Date: Sun, 25 Jul 2004 23:10:03 +0800
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parents:
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diff
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|
745 #define __SDL_NOGETPROCADDR__ |
|
989
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parents:
944
diff
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|
746 #elif defined(__MINT__) |
|
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parents:
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|
747 #define __SDL_NOGETPROCADDR__ |
|
916
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parents:
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|
748 #endif |
|
910
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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diff
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|
749 #ifdef __SDL_NOGETPROCADDR__ |
|
4ab6d1fd028f
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|
750 #define SDL_PROC(ret,func,params) video->func=func; |
|
663
8bedd6d61642
Date: Sat, 2 Aug 2003 16:22:51 +0300
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|
751 #else |
|
910
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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752 #define SDL_PROC(ret,func,params) \ |
|
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753 do { \ |
|
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754 video->func = SDL_GL_GetProcAddress(#func); \ |
|
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Date: Sat, 26 Jun 2004 14:58:42 +0300
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755 if ( ! video->func ) { \ |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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|
756 SDL_SetError("Couldn't load GL function: %s\n", #func); \ |
|
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757 return(NULL); \ |
|
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Date: Sat, 26 Jun 2004 14:58:42 +0300
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|
758 } \ |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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759 } while ( 0 ); |
|
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|
760 |
|
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Date: Sat, 26 Jun 2004 14:58:42 +0300
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|
761 #endif /* __SDL_NOGETPROCADDR__ */ |
|
4ab6d1fd028f
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|
762 |
|
650
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|
763 #include "SDL_glfuncs.h" |
|
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|
764 #undef SDL_PROC |
|
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765 } |
|
910
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|
766 #endif /* HAVE_OPENGL */ |
|
650
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|
767 |
| 0 | 768 /* If we're running OpenGL, make the context current */ |
| 769 if ( (video->screen->flags & SDL_OPENGL) && | |
| 770 video->GL_MakeCurrent ) { | |
| 771 if ( video->GL_MakeCurrent(this) < 0 ) { | |
| 772 return(NULL); | |
| 773 } | |
| 774 } | |
| 775 | |
| 776 /* Set up a fake SDL surface for OpenGL "blitting" */ | |
| 777 if ( (flags & SDL_OPENGLBLIT) == SDL_OPENGLBLIT ) { | |
| 778 /* Load GL functions for performing the texture updates */ | |
| 779 #ifdef HAVE_OPENGL | |
| 780 | |
| 781 /* Create a software surface for blitting */ | |
| 782 #ifdef GL_VERSION_1_2 | |
| 783 /* If the implementation either supports the packed pixels | |
| 784 extension, or implements the core OpenGL 1.2 API, it will | |
| 785 support the GL_UNSIGNED_SHORT_5_6_5 texture format. | |
| 786 */ | |
| 787 if ( (bpp == 16) && | |
|
282
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788 (strstr((const char *)video->glGetString(GL_EXTENSIONS), "GL_EXT_packed_pixels") || |
|
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789 (atof((const char *)video->glGetString(GL_VERSION)) >= 1.2f)) |
|
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790 ) { |
| 0 | 791 video->is_32bit = 0; |
| 792 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 793 flags, | |
| 794 width, | |
| 795 height, | |
| 796 16, | |
| 797 31 << 11, | |
| 798 63 << 5, | |
| 799 31, | |
| 800 0 | |
| 801 ); | |
| 802 } | |
| 803 else | |
| 804 #endif /* OpenGL 1.2 */ | |
| 805 { | |
| 806 video->is_32bit = 1; | |
| 807 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 808 flags, | |
| 809 width, | |
| 810 height, | |
| 811 32, | |
| 812 #if SDL_BYTEORDER == SDL_LIL_ENDIAN | |
| 813 0x000000FF, | |
| 814 0x0000FF00, | |
| 815 0x00FF0000, | |
| 816 0xFF000000 | |
| 817 #else | |
| 818 0xFF000000, | |
| 819 0x00FF0000, | |
| 820 0x0000FF00, | |
| 821 0x000000FF | |
| 822 #endif | |
| 823 ); | |
| 824 } | |
| 825 if ( ! SDL_VideoSurface ) { | |
| 826 return(NULL); | |
| 827 } | |
| 828 SDL_VideoSurface->flags = mode->flags | SDL_OPENGLBLIT; | |
| 829 | |
| 830 /* Free the original video mode surface (is this safe?) */ | |
| 831 SDL_FreeSurface(mode); | |
| 832 | |
|
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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diff
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|
833 /* Set the surface completely opaque & white by default */ |
| 0 | 834 memset( SDL_VideoSurface->pixels, 255, SDL_VideoSurface->h * SDL_VideoSurface->pitch ); |
| 835 video->glGenTextures( 1, &video->texture ); | |
| 836 video->glBindTexture( GL_TEXTURE_2D, video->texture ); | |
| 837 video->glTexImage2D( | |
| 838 GL_TEXTURE_2D, | |
| 839 0, | |
| 840 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 841 256, | |
| 842 256, | |
| 843 0, | |
| 844 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 845 #ifdef GL_VERSION_1_2 | |
| 846 video->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 847 #else | |
| 848 GL_UNSIGNED_BYTE, | |
| 849 #endif | |
| 850 NULL); | |
| 851 | |
| 852 video->UpdateRects = SDL_GL_UpdateRectsLock; | |
| 853 #else | |
| 854 SDL_SetError("Somebody forgot to #define HAVE_OPENGL"); | |
| 855 return(NULL); | |
| 856 #endif | |
| 857 } | |
| 858 | |
| 859 /* Create a shadow surface if necessary */ | |
| 860 /* There are three conditions under which we create a shadow surface: | |
| 861 1. We need a particular bits-per-pixel that we didn't get. | |
| 862 2. We need a hardware palette and didn't get one. | |
| 863 3. We need a software surface and got a hardware surface. | |
| 864 */ | |
| 865 if ( !(SDL_VideoSurface->flags & SDL_OPENGL) && | |
| 866 ( | |
| 867 ( !(flags&SDL_ANYFORMAT) && | |
| 868 (SDL_VideoSurface->format->BitsPerPixel != bpp)) || | |
| 869 ( (flags&SDL_HWPALETTE) && | |
| 870 !(SDL_VideoSurface->flags&SDL_HWPALETTE)) || | |
| 871 /* If the surface is in hardware, video writes are visible | |
| 872 as soon as they are performed, so we need to buffer them | |
| 873 */ | |
| 874 ( ((flags&SDL_HWSURFACE) == SDL_SWSURFACE) && | |
|
580
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Sam Lantinga <slouken@libsdl.org>
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|
875 (SDL_VideoSurface->flags&SDL_HWSURFACE)) || |
|
be6495850a62
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diff
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|
876 ( (flags&SDL_DOUBLEBUF) && |
|
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Sam Lantinga <slouken@libsdl.org>
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diff
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|
877 (SDL_VideoSurface->flags&SDL_HWSURFACE) && |
|
be6495850a62
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|
878 !(SDL_VideoSurface->flags&SDL_DOUBLEBUF)) |
| 0 | 879 ) ) { |
| 880 SDL_CreateShadowSurface(bpp); | |
| 881 if ( SDL_ShadowSurface == NULL ) { | |
| 882 SDL_SetError("Couldn't create shadow surface"); | |
| 883 return(NULL); | |
| 884 } | |
| 885 SDL_PublicSurface = SDL_ShadowSurface; | |
| 886 } else { | |
| 887 SDL_PublicSurface = SDL_VideoSurface; | |
| 888 } | |
| 889 video->info.vfmt = SDL_VideoSurface->format; | |
| 890 | |
| 891 /* We're done! */ | |
| 892 return(SDL_PublicSurface); | |
| 893 } | |
| 894 | |
| 895 /* | |
| 896 * Convert a surface into the video pixel format. | |
| 897 */ | |
| 898 SDL_Surface * SDL_DisplayFormat (SDL_Surface *surface) | |
| 899 { | |
| 900 Uint32 flags; | |
| 901 | |
| 902 if ( ! SDL_PublicSurface ) { | |
| 903 SDL_SetError("No video mode has been set"); | |
| 904 return(NULL); | |
| 905 } | |
| 906 /* Set the flags appropriate for copying to display surface */ | |
|
313
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*** empty log message ***
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907 if (((SDL_PublicSurface->flags&SDL_HWSURFACE) == SDL_HWSURFACE) && current_video->info.blit_hw) |
|
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908 flags = SDL_HWSURFACE; |
|
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909 else |
|
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|
910 flags = SDL_SWSURFACE; |
| 0 | 911 #ifdef AUTORLE_DISPLAYFORMAT |
| 912 flags |= (surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA)); | |
| 913 flags |= SDL_RLEACCELOK; | |
| 914 #else | |
| 915 flags |= surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA|SDL_RLEACCELOK); | |
| 916 #endif | |
| 917 return(SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags)); | |
| 918 } | |
| 919 | |
| 920 /* | |
| 921 * Convert a surface into a format that's suitable for blitting to | |
| 922 * the screen, but including an alpha channel. | |
| 923 */ | |
| 924 SDL_Surface *SDL_DisplayFormatAlpha(SDL_Surface *surface) | |
| 925 { | |
| 926 SDL_PixelFormat *vf; | |
| 927 SDL_PixelFormat *format; | |
| 928 SDL_Surface *converted; | |
| 929 Uint32 flags; | |
| 930 /* default to ARGB8888 */ | |
| 931 Uint32 amask = 0xff000000; | |
| 932 Uint32 rmask = 0x00ff0000; | |
| 933 Uint32 gmask = 0x0000ff00; | |
| 934 Uint32 bmask = 0x000000ff; | |
| 935 | |
| 936 if ( ! SDL_PublicSurface ) { | |
| 937 SDL_SetError("No video mode has been set"); | |
| 938 return(NULL); | |
| 939 } | |
| 940 vf = SDL_PublicSurface->format; | |
| 941 | |
| 942 switch(vf->BytesPerPixel) { | |
| 943 case 2: | |
| 944 /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}. | |
| 945 For anything else (like ARGB4444) it doesn't matter | |
| 946 since we have no special code for it anyway */ | |
| 947 if ( (vf->Rmask == 0x1f) && | |
| 948 (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) { | |
| 949 rmask = 0xff; | |
| 950 bmask = 0xff0000; | |
| 951 } | |
| 952 break; | |
| 953 | |
| 954 case 3: | |
| 955 case 4: | |
| 956 /* Keep the video format, as long as the high 8 bits are | |
| 957 unused or alpha */ | |
| 958 if ( (vf->Rmask == 0xff) && (vf->Bmask == 0xff0000) ) { | |
| 959 rmask = 0xff; | |
| 960 bmask = 0xff0000; | |
| 961 } | |
| 962 break; | |
| 963 | |
| 964 default: | |
| 965 /* We have no other optimised formats right now. When/if a new | |
| 966 optimised alpha format is written, add the converter here */ | |
| 967 break; | |
| 968 } | |
| 969 format = SDL_AllocFormat(32, rmask, gmask, bmask, amask); | |
| 970 flags = SDL_PublicSurface->flags & SDL_HWSURFACE; | |
| 971 flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); | |
| 972 converted = SDL_ConvertSurface(surface, format, flags); | |
| 973 SDL_FreeFormat(format); | |
| 974 return(converted); | |
| 975 } | |
| 976 | |
| 977 /* | |
| 978 * Update a specific portion of the physical screen | |
| 979 */ | |
| 980 void SDL_UpdateRect(SDL_Surface *screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h) | |
| 981 { | |
| 982 if ( screen ) { | |
| 983 SDL_Rect rect; | |
| 984 | |
| 985 /* Perform some checking */ | |
| 986 if ( w == 0 ) | |
| 987 w = screen->w; | |
| 988 if ( h == 0 ) | |
| 989 h = screen->h; | |
| 990 if ( (int)(x+w) > screen->w ) | |
| 991 return; | |
| 992 if ( (int)(y+h) > screen->h ) | |
| 993 return; | |
| 994 | |
| 995 /* Fill the rectangle */ | |
| 996 rect.x = x; | |
| 997 rect.y = y; | |
| 998 rect.w = w; | |
| 999 rect.h = h; | |
| 1000 SDL_UpdateRects(screen, 1, &rect); | |
| 1001 } | |
| 1002 } | |
| 1003 void SDL_UpdateRects (SDL_Surface *screen, int numrects, SDL_Rect *rects) | |
| 1004 { | |
| 1005 int i; | |
| 1006 SDL_VideoDevice *video = current_video; | |
| 1007 SDL_VideoDevice *this = current_video; | |
| 1008 | |
| 1009 if ( screen == SDL_ShadowSurface ) { | |
| 1010 /* Blit the shadow surface using saved mapping */ | |
|
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|
1011 SDL_Palette *pal = screen->format->palette; |
| 0 | 1012 SDL_Color *saved_colors = NULL; |
|
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diff
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|
1013 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1014 /* simulated 8bpp, use correct physical palette */ |
| 1015 saved_colors = pal->colors; | |
| 1016 if ( video->gammacols ) { | |
| 1017 /* gamma-corrected palette */ | |
| 1018 pal->colors = video->gammacols; | |
| 1019 } else if ( video->physpal ) { | |
| 1020 /* physical palette different from logical */ | |
| 1021 pal->colors = video->physpal->colors; | |
| 1022 } | |
| 1023 } | |
| 1024 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { | |
| 1025 SDL_LockCursor(); | |
| 1026 SDL_DrawCursor(SDL_ShadowSurface); | |
| 1027 for ( i=0; i<numrects; ++i ) { | |
| 1028 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1029 SDL_VideoSurface, &rects[i]); | |
| 1030 } | |
| 1031 SDL_EraseCursor(SDL_ShadowSurface); | |
| 1032 SDL_UnlockCursor(); | |
| 1033 } else { | |
| 1034 for ( i=0; i<numrects; ++i ) { | |
| 1035 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1036 SDL_VideoSurface, &rects[i]); | |
| 1037 } | |
| 1038 } | |
|
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|
1039 if ( saved_colors ) { |
| 0 | 1040 pal->colors = saved_colors; |
|
488
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Fixed missing cursor after shadow buffer flip (thanks Jan!)
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|
1041 } |
| 0 | 1042 |
| 1043 /* Fall through to video surface update */ | |
| 1044 screen = SDL_VideoSurface; | |
| 1045 } | |
| 1046 if ( screen == SDL_VideoSurface ) { | |
| 1047 /* Update the video surface */ | |
| 1048 if ( screen->offset ) { | |
| 1049 for ( i=0; i<numrects; ++i ) { | |
| 1050 rects[i].x += video->offset_x; | |
| 1051 rects[i].y += video->offset_y; | |
| 1052 } | |
| 1053 video->UpdateRects(this, numrects, rects); | |
| 1054 for ( i=0; i<numrects; ++i ) { | |
| 1055 rects[i].x -= video->offset_x; | |
| 1056 rects[i].y -= video->offset_y; | |
| 1057 } | |
| 1058 } else { | |
| 1059 video->UpdateRects(this, numrects, rects); | |
| 1060 } | |
| 1061 } | |
| 1062 } | |
| 1063 | |
| 1064 /* | |
| 1065 * Performs hardware double buffering, if possible, or a full update if not. | |
| 1066 */ | |
| 1067 int SDL_Flip(SDL_Surface *screen) | |
| 1068 { | |
| 1069 SDL_VideoDevice *video = current_video; | |
| 1070 /* Copy the shadow surface to the video surface */ | |
| 1071 if ( screen == SDL_ShadowSurface ) { | |
| 1072 SDL_Rect rect; | |
|
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1073 SDL_Palette *pal = screen->format->palette; |
| 0 | 1074 SDL_Color *saved_colors = NULL; |
|
488
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Fixed missing cursor after shadow buffer flip (thanks Jan!)
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1075 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1076 /* simulated 8bpp, use correct physical palette */ |
| 1077 saved_colors = pal->colors; | |
| 1078 if ( video->gammacols ) { | |
| 1079 /* gamma-corrected palette */ | |
| 1080 pal->colors = video->gammacols; | |
| 1081 } else if ( video->physpal ) { | |
| 1082 /* physical palette different from logical */ | |
| 1083 pal->colors = video->physpal->colors; | |
| 1084 } | |
| 1085 } | |
| 1086 | |
| 1087 rect.x = 0; | |
| 1088 rect.y = 0; | |
| 1089 rect.w = screen->w; | |
| 1090 rect.h = screen->h; | |
|
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1091 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { |
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1092 SDL_LockCursor(); |
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1093 SDL_DrawCursor(SDL_ShadowSurface); |
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1094 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1095 SDL_VideoSurface, &rect); |
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1096 SDL_EraseCursor(SDL_ShadowSurface); |
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1097 SDL_UnlockCursor(); |
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1098 } else { |
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1099 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1100 SDL_VideoSurface, &rect); |
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1101 } |
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1102 if ( saved_colors ) { |
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1103 pal->colors = saved_colors; |
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1104 } |
| 0 | 1105 |
|
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1106 /* Fall through to video surface update */ |
| 0 | 1107 screen = SDL_VideoSurface; |
| 1108 } | |
| 1109 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 1110 SDL_VideoDevice *this = current_video; | |
| 1111 return(video->FlipHWSurface(this, SDL_VideoSurface)); | |
| 1112 } else { | |
| 1113 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1114 } | |
| 1115 return(0); | |
| 1116 } | |
| 1117 | |
| 1118 static void SetPalette_logical(SDL_Surface *screen, SDL_Color *colors, | |
| 1119 int firstcolor, int ncolors) | |
| 1120 { | |
|
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1121 SDL_Palette *pal = screen->format->palette; |
| 0 | 1122 SDL_Palette *vidpal; |
| 1123 | |
| 1124 if ( colors != (pal->colors + firstcolor) ) { | |
|
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1125 memcpy(pal->colors + firstcolor, colors, |
| 0 | 1126 ncolors * sizeof(*colors)); |
| 1127 } | |
| 1128 | |
| 1129 vidpal = SDL_VideoSurface->format->palette; | |
| 1130 if ( (screen == SDL_ShadowSurface) && vidpal ) { | |
|
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1131 /* |
| 0 | 1132 * This is a shadow surface, and the physical |
| 1133 * framebuffer is also indexed. Propagate the | |
| 1134 * changes to its logical palette so that | |
| 1135 * updates are always identity blits | |
| 1136 */ | |
| 1137 memcpy(vidpal->colors + firstcolor, colors, | |
| 1138 ncolors * sizeof(*colors)); | |
| 1139 } | |
| 1140 SDL_FormatChanged(screen); | |
| 1141 } | |
| 1142 | |
| 1143 static int SetPalette_physical(SDL_Surface *screen, | |
| 1144 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1145 { | |
| 1146 SDL_VideoDevice *video = current_video; | |
| 1147 int gotall = 1; | |
| 1148 | |
| 1149 if ( video->physpal ) { | |
| 1150 /* We need to copy the new colors, since we haven't | |
| 1151 * already done the copy in the logical set above. | |
| 1152 */ | |
| 1153 memcpy(video->physpal->colors + firstcolor, | |
| 1154 colors, ncolors * sizeof(*colors)); | |
| 1155 } | |
| 1156 if ( screen == SDL_ShadowSurface ) { | |
| 1157 if ( SDL_VideoSurface->flags & SDL_HWPALETTE ) { | |
| 1158 /* | |
| 1159 * The real screen is also indexed - set its physical | |
| 1160 * palette. The physical palette does not include the | |
| 1161 * gamma modification, we apply it directly instead, | |
| 1162 * but this only happens if we have hardware palette. | |
| 1163 */ | |
| 1164 screen = SDL_VideoSurface; | |
| 1165 } else { | |
| 1166 /* | |
| 1167 * The video surface is not indexed - invalidate any | |
| 1168 * active shadow-to-video blit mappings. | |
| 1169 */ | |
| 1170 if ( screen->map->dst == SDL_VideoSurface ) { | |
| 1171 SDL_InvalidateMap(screen->map); | |
| 1172 } | |
| 1173 if ( video->gamma ) { | |
| 1174 if( ! video->gammacols ) { | |
| 1175 SDL_Palette *pp = video->physpal; | |
| 1176 if(!pp) | |
| 1177 pp = screen->format->palette; | |
| 1178 video->gammacols = malloc(pp->ncolors | |
| 1179 * sizeof(SDL_Color)); | |
| 1180 SDL_ApplyGamma(video->gamma, | |
| 1181 pp->colors, | |
| 1182 video->gammacols, | |
| 1183 pp->ncolors); | |
| 1184 } else { | |
| 1185 SDL_ApplyGamma(video->gamma, colors, | |
| 1186 video->gammacols | |
| 1187 + firstcolor, | |
| 1188 ncolors); | |
| 1189 } | |
| 1190 } | |
| 1191 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1192 } | |
| 1193 } | |
| 1194 | |
| 1195 if ( screen == SDL_VideoSurface ) { | |
| 1196 SDL_Color gcolors[256]; | |
| 1197 | |
|
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1198 if ( video->gamma ) { |
|
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1199 SDL_ApplyGamma(video->gamma, colors, gcolors, ncolors); |
| 0 | 1200 colors = gcolors; |
| 1201 } | |
| 1202 gotall = video->SetColors(video, firstcolor, ncolors, colors); | |
| 1203 if ( ! gotall ) { | |
| 1204 /* The video flags shouldn't have SDL_HWPALETTE, and | |
| 1205 the video driver is responsible for copying back the | |
| 1206 correct colors into the video surface palette. | |
| 1207 */ | |
| 1208 ; | |
| 1209 } | |
| 1210 SDL_CursorPaletteChanged(); | |
| 1211 } | |
| 1212 return gotall; | |
| 1213 } | |
| 1214 | |
| 1215 /* | |
| 1216 * Set the physical and/or logical colormap of a surface: | |
| 1217 * Only the screen has a physical colormap. It determines what is actually | |
| 1218 * sent to the display. | |
| 1219 * The logical colormap is used to map blits to/from the surface. | |
| 1220 * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL | |
| 1221 * | |
| 1222 * Return nonzero if all colours were set as requested, or 0 otherwise. | |
| 1223 */ | |
| 1224 int SDL_SetPalette(SDL_Surface *screen, int which, | |
| 1225 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1226 { | |
|
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1227 SDL_Palette *pal; |
| 0 | 1228 int gotall; |
| 1229 int palsize; | |
| 1230 | |
| 34 | 1231 if ( ! current_video ) { |
| 1232 return 0; | |
| 1233 } | |
| 0 | 1234 if ( screen != SDL_PublicSurface ) { |
|
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1235 /* only screens have physical palettes */ |
|
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1236 which &= ~SDL_PHYSPAL; |
| 0 | 1237 } else if( (screen->flags & SDL_HWPALETTE) != SDL_HWPALETTE ) { |
|
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1238 /* hardware palettes required for split colormaps */ |
|
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|
1239 which |= SDL_PHYSPAL | SDL_LOGPAL; |
| 0 | 1240 } |
| 1241 | |
| 1242 /* Verify the parameters */ | |
| 1243 pal = screen->format->palette; | |
| 1244 if( !pal ) { | |
|
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1245 return 0; /* not a palettized surface */ |
| 0 | 1246 } |
| 1247 gotall = 1; | |
| 1248 palsize = 1 << screen->format->BitsPerPixel; | |
| 1249 if ( ncolors > (palsize - firstcolor) ) { | |
|
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|
1250 ncolors = (palsize - firstcolor); |
| 0 | 1251 gotall = 0; |
| 1252 } | |
| 1253 | |
| 1254 if ( which & SDL_LOGPAL ) { | |
| 1255 /* | |
| 1256 * Logical palette change: The actual screen isn't affected, | |
| 1257 * but the internal colormap is altered so that the | |
| 1258 * interpretation of the pixel values (for blits etc) is | |
| 1259 * changed. | |
| 1260 */ | |
|
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1261 SetPalette_logical(screen, colors, firstcolor, ncolors); |
| 0 | 1262 } |
| 1263 if ( which & SDL_PHYSPAL ) { | |
| 1264 SDL_VideoDevice *video = current_video; | |
|
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1265 /* |
| 0 | 1266 * Physical palette change: This doesn't affect the |
| 1267 * program's idea of what the screen looks like, but changes | |
| 1268 * its actual appearance. | |
| 1269 */ | |
|
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1270 if(!video) |
|
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1271 return gotall; /* video not yet initialized */ |
| 0 | 1272 if(!video->physpal && !(which & SDL_LOGPAL) ) { |
| 1273 /* Lazy physical palette allocation */ | |
|
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|
1274 int size; |
| 0 | 1275 SDL_Palette *pp = malloc(sizeof(*pp)); |
|
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1276 if ( !pp ) { |
|
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1277 return 0; |
|
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|
1278 } |
| 0 | 1279 current_video->physpal = pp; |
| 1280 pp->ncolors = pal->ncolors; | |
| 1281 size = pp->ncolors * sizeof(SDL_Color); | |
| 1282 pp->colors = malloc(size); | |
|
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1283 if ( !pp->colors ) { |
|
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1284 return 0; |
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1285 } |
| 0 | 1286 memcpy(pp->colors, pal->colors, size); |
| 1287 } | |
| 1288 if ( ! SetPalette_physical(screen, | |
| 1289 colors, firstcolor, ncolors) ) { | |
| 1290 gotall = 0; | |
| 1291 } | |
| 1292 } | |
| 1293 return gotall; | |
| 1294 } | |
| 1295 | |
| 1296 int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor, | |
| 1297 int ncolors) | |
| 1298 { | |
|
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1299 return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, |
| 0 | 1300 colors, firstcolor, ncolors); |
| 1301 } | |
| 1302 | |
| 1303 /* | |
| 1304 * Clean up the video subsystem | |
| 1305 */ | |
| 1306 void SDL_VideoQuit (void) | |
| 1307 { | |
| 1308 SDL_Surface *ready_to_go; | |
| 1309 | |
| 1310 if ( current_video ) { | |
| 1311 SDL_VideoDevice *video = current_video; | |
| 1312 SDL_VideoDevice *this = current_video; | |
| 1313 | |
| 1314 /* Halt event processing before doing anything else */ | |
| 1315 SDL_StopEventLoop(); | |
| 1316 | |
| 1317 /* Clean up allocated window manager items */ | |
| 1318 if ( SDL_PublicSurface ) { | |
| 1319 SDL_PublicSurface = NULL; | |
| 1320 } | |
| 1321 SDL_CursorQuit(); | |
| 1322 | |
| 1323 /* Just in case... */ | |
| 1324 SDL_WM_GrabInputOff(); | |
| 1325 | |
| 1326 /* Clean up the system video */ | |
| 1327 video->VideoQuit(this); | |
| 1328 | |
| 1329 /* Free any lingering surfaces */ | |
| 1330 ready_to_go = SDL_ShadowSurface; | |
| 1331 SDL_ShadowSurface = NULL; | |
| 1332 SDL_FreeSurface(ready_to_go); | |
| 1333 if ( SDL_VideoSurface != NULL ) { | |
| 1334 ready_to_go = SDL_VideoSurface; | |
| 1335 SDL_VideoSurface = NULL; | |
| 1336 SDL_FreeSurface(ready_to_go); | |
| 1337 } | |
| 1338 SDL_PublicSurface = NULL; | |
| 1339 | |
| 1340 /* Clean up miscellaneous memory */ | |
| 1341 if ( video->physpal ) { | |
| 1342 free(video->physpal->colors); | |
| 1343 free(video->physpal); | |
| 1344 video->physpal = NULL; | |
| 1345 } | |
| 1346 if ( video->gammacols ) { | |
| 1347 free(video->gammacols); | |
| 1348 video->gammacols = NULL; | |
| 1349 } | |
| 1350 if ( video->gamma ) { | |
| 1351 free(video->gamma); | |
| 1352 video->gamma = NULL; | |
| 1353 } | |
|
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1354 if ( video->wm_title != NULL ) { |
|
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|
1355 free(video->wm_title); |
|
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|
1356 video->wm_title = NULL; |
| 0 | 1357 } |
|
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|
1358 if ( video->wm_icon != NULL ) { |
|
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|
1359 free(video->wm_icon); |
|
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1360 video->wm_icon = NULL; |
| 0 | 1361 } |
| 1362 | |
| 1363 /* Finish cleaning up video subsystem */ | |
| 1364 video->free(this); | |
| 1365 current_video = NULL; | |
| 1366 } | |
| 1367 return; | |
| 1368 } | |
| 1369 | |
| 1370 /* Load the GL driver library */ | |
| 1371 int SDL_GL_LoadLibrary(const char *path) | |
| 1372 { | |
| 1373 SDL_VideoDevice *video = current_video; | |
| 1374 SDL_VideoDevice *this = current_video; | |
| 1375 int retval; | |
| 1376 | |
| 1377 retval = -1; | |
|
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1378 if ( video == NULL ) { |
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1379 SDL_SetError("Video subsystem has not been initialized"); |
| 0 | 1380 } else { |
|
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1381 if ( video->GL_LoadLibrary ) { |
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1382 retval = video->GL_LoadLibrary(this, path); |
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1383 } else { |
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1384 SDL_SetError("No dynamic GL support in video driver"); |
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1385 } |
| 0 | 1386 } |
| 1387 return(retval); | |
| 1388 } | |
| 1389 | |
| 1390 void *SDL_GL_GetProcAddress(const char* proc) | |
| 1391 { | |
| 1392 SDL_VideoDevice *video = current_video; | |
| 1393 SDL_VideoDevice *this = current_video; | |
| 1394 void *func; | |
| 1395 | |
| 1396 func = NULL; | |
| 1397 if ( video->GL_GetProcAddress ) { | |
| 1398 if ( video->gl_config.driver_loaded ) { | |
| 1399 func = video->GL_GetProcAddress(this, proc); | |
| 1400 } else { | |
| 1401 SDL_SetError("No GL driver has been loaded"); | |
| 1402 } | |
| 1403 } else { | |
| 1404 SDL_SetError("No dynamic GL support in video driver"); | |
| 1405 } | |
| 1406 return func; | |
| 1407 } | |
| 1408 | |
| 1409 /* Set the specified GL attribute for setting up a GL video mode */ | |
| 1410 int SDL_GL_SetAttribute( SDL_GLattr attr, int value ) | |
| 1411 { | |
| 1412 int retval; | |
| 1413 SDL_VideoDevice *video = current_video; | |
| 1414 | |
| 1415 retval = 0; | |
| 1416 switch (attr) { | |
| 1417 case SDL_GL_RED_SIZE: | |
| 1418 video->gl_config.red_size = value; | |
| 1419 break; | |
| 1420 case SDL_GL_GREEN_SIZE: | |
| 1421 video->gl_config.green_size = value; | |
| 1422 break; | |
| 1423 case SDL_GL_BLUE_SIZE: | |
| 1424 video->gl_config.blue_size = value; | |
| 1425 break; | |
| 1426 case SDL_GL_ALPHA_SIZE: | |
| 1427 video->gl_config.alpha_size = value; | |
| 1428 break; | |
| 1429 case SDL_GL_DOUBLEBUFFER: | |
| 1430 video->gl_config.double_buffer = value; | |
| 1431 break; | |
|
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656
diff
changeset
|
1432 case SDL_GL_BUFFER_SIZE: |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1433 video->gl_config.buffer_size = value; |
| 0 | 1434 break; |
| 1435 case SDL_GL_DEPTH_SIZE: | |
| 1436 video->gl_config.depth_size = value; | |
| 1437 break; | |
| 1438 case SDL_GL_STENCIL_SIZE: | |
| 1439 video->gl_config.stencil_size = value; | |
| 1440 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1441 case SDL_GL_ACCUM_RED_SIZE: |
| 0 | 1442 video->gl_config.accum_red_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_GREEN_SIZE: |
| 0 | 1445 video->gl_config.accum_green_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_BLUE_SIZE: |
| 0 | 1448 video->gl_config.accum_blue_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_ALPHA_SIZE: |
| 0 | 1451 video->gl_config.accum_alpha_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_STEREO: |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1454 video->gl_config.stereo = value; |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
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|
1455 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
|
1456 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
|
1457 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
|
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_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
|
1460 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
|
1461 break; |
| 0 | 1462 default: |
| 1463 SDL_SetError("Unknown OpenGL attribute"); | |
| 1464 retval = -1; | |
| 1465 break; | |
| 1466 } | |
| 1467 return(retval); | |
| 1468 } | |
| 1469 | |
| 1470 /* Retrieve an attribute value from the windowing system. */ | |
| 1471 int SDL_GL_GetAttribute(SDL_GLattr attr, int* value) | |
| 1472 { | |
| 1473 int retval = -1; | |
| 1474 SDL_VideoDevice* video = current_video; | |
| 1475 SDL_VideoDevice* this = current_video; | |
| 1476 | |
| 1477 if ( video->GL_GetAttribute ) { | |
| 1478 retval = this->GL_GetAttribute(this, attr, value); | |
|
11
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1479 } else { |
|
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1480 *value = 0; |
|
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1481 SDL_SetError("GL_GetAttribute not supported"); |
| 0 | 1482 } |
| 1483 return retval; | |
| 1484 } | |
| 1485 | |
| 1486 /* Perform a GL buffer swap on the current GL context */ | |
| 1487 void SDL_GL_SwapBuffers(void) | |
| 1488 { | |
| 1489 SDL_VideoDevice *video = current_video; | |
| 1490 SDL_VideoDevice *this = current_video; | |
| 1491 | |
| 1492 if ( video->screen->flags & SDL_OPENGL ) { | |
|
266
c6abdda2f666
Added QNX cleanups by Mike Gorchak (thanks!)
Sam Lantinga <slouken@libsdl.org>
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252
diff
changeset
|
1493 video->GL_SwapBuffers(this); |
|
c6abdda2f666
Added QNX cleanups by Mike Gorchak (thanks!)
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1494 } else { |
|
c6abdda2f666
Added QNX cleanups by Mike Gorchak (thanks!)
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|
1495 SDL_SetError("OpenGL video mode has not been set"); |
| 0 | 1496 } |
| 1497 } | |
| 1498 | |
| 1499 /* Update rects with locking */ | |
| 1500 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect *rects) | |
| 1501 { | |
| 1502 SDL_GL_Lock(); | |
| 1503 SDL_GL_UpdateRects(numrects, rects); | |
| 1504 SDL_GL_Unlock(); | |
| 1505 } | |
| 1506 | |
| 1507 /* Update rects without state setting and changing (the caller is responsible for it) */ | |
| 1508 void SDL_GL_UpdateRects(int numrects, SDL_Rect *rects) | |
| 1509 { | |
| 1510 #ifdef HAVE_OPENGL | |
| 1511 SDL_VideoDevice *this = current_video; | |
| 1512 SDL_Rect update, tmp; | |
| 1513 int x, y, i; | |
| 1514 | |
| 1515 for ( i = 0; i < numrects; i++ ) | |
| 1516 { | |
| 1517 tmp.y = rects[i].y; | |
| 1518 tmp.h = rects[i].h; | |
| 1519 for ( y = 0; y <= rects[i].h / 256; y++ ) | |
| 1520 { | |
| 1521 tmp.x = rects[i].x; | |
| 1522 tmp.w = rects[i].w; | |
| 1523 for ( x = 0; x <= rects[i].w / 256; x++ ) | |
| 1524 { | |
| 1525 update.x = tmp.x; | |
| 1526 update.y = tmp.y; | |
| 1527 update.w = tmp.w; | |
| 1528 update.h = tmp.h; | |
| 1529 | |
| 1530 if ( update.w > 256 ) | |
| 1531 update.w = 256; | |
| 1532 | |
| 1533 if ( update.h > 256 ) | |
| 1534 update.h = 256; | |
| 1535 | |
| 1536 this->glFlush(); | |
| 1537 this->glTexSubImage2D( | |
| 1538 GL_TEXTURE_2D, | |
| 1539 0, | |
| 1540 0, | |
| 1541 0, | |
| 1542 update.w, | |
| 1543 update.h, | |
| 1544 this->is_32bit? GL_RGBA : GL_RGB, | |
| 1545 #ifdef GL_VERSION_1_2 | |
| 1546 this->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 1547 #else | |
| 1548 GL_UNSIGNED_BYTE, | |
| 1549 #endif | |
| 1550 (Uint8 *)this->screen->pixels + | |
| 1551 this->screen->format->BytesPerPixel * update.x + | |
| 1552 update.y * this->screen->pitch ); | |
| 1553 | |
| 1554 this->glFlush(); | |
| 1555 /* | |
| 1556 * Note the parens around the function name: | |
| 1557 * This is because some OpenGL implementations define glTexCoord etc | |
| 1558 * as macros, and we don't want them expanded here. | |
| 1559 */ | |
| 1560 this->glBegin(GL_TRIANGLE_STRIP); | |
| 1561 (this->glTexCoord2f)( 0.0, 0.0 ); | |
| 1562 (this->glVertex2i)( update.x, update.y ); | |
| 1563 (this->glTexCoord2f)( (float)(update.w / 256.0), 0.0 ); | |
| 1564 (this->glVertex2i)( update.x + update.w, update.y ); | |
| 1565 (this->glTexCoord2f)( 0.0, (float)(update.h / 256.0) ); | |
| 1566 (this->glVertex2i)( update.x, update.y + update.h ); | |
| 1567 (this->glTexCoord2f)( (float)(update.w / 256.0), (float)(update.h / 256.0) ); | |
| 1568 (this->glVertex2i)( update.x + update.w , update.y + update.h ); | |
| 1569 this->glEnd(); | |
| 1570 | |
| 1571 tmp.x += 256; | |
| 1572 tmp.w -= 256; | |
| 1573 } | |
| 1574 tmp.y += 256; | |
| 1575 tmp.h -= 256; | |
| 1576 } | |
| 1577 } | |
| 1578 #endif | |
| 1579 } | |
| 1580 | |
| 1581 /* Lock == save current state */ | |
| 1582 void SDL_GL_Lock() | |
| 1583 { | |
| 1584 #ifdef HAVE_OPENGL | |
| 1585 lock_count--; | |
| 1586 if (lock_count==-1) | |
| 1587 { | |
| 1588 SDL_VideoDevice *this = current_video; | |
| 1589 | |
| 1590 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
|
1591 #ifdef GL_CLIENT_PIXEL_STORE_BIT |
| 0 | 1592 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
|
1593 #endif |
| 0 | 1594 |
| 1595 this->glEnable(GL_TEXTURE_2D); | |
| 1596 this->glEnable(GL_BLEND); | |
| 1597 this->glDisable(GL_FOG); | |
| 1598 this->glDisable(GL_ALPHA_TEST); | |
| 1599 this->glDisable(GL_DEPTH_TEST); | |
| 1600 this->glDisable(GL_SCISSOR_TEST); | |
| 1601 this->glDisable(GL_STENCIL_TEST); | |
| 1602 this->glDisable(GL_CULL_FACE); | |
| 1603 | |
| 1604 this->glBindTexture( GL_TEXTURE_2D, this->texture ); | |
| 1605 this->glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); | |
| 1606 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); | |
| 1607 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); | |
| 1608 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); | |
| 1609 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT ); | |
| 1610 | |
| 1611 this->glPixelStorei( GL_UNPACK_ROW_LENGTH, this->screen->pitch / this->screen->format->BytesPerPixel ); | |
| 1612 this->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
| 1613 (this->glColor4f)(1.0, 1.0, 1.0, 1.0); /* Solaris workaround */ | |
| 1614 | |
| 1615 this->glViewport(0, 0, this->screen->w, this->screen->h); | |
| 1616 this->glMatrixMode(GL_PROJECTION); | |
| 1617 this->glPushMatrix(); | |
| 1618 this->glLoadIdentity(); | |
| 1619 | |
| 1620 this->glOrtho(0.0, (GLdouble) this->screen->w, (GLdouble) this->screen->h, 0.0, 0.0, 1.0); | |
| 1621 | |
| 1622 this->glMatrixMode(GL_MODELVIEW); | |
| 1623 this->glPushMatrix(); | |
| 1624 this->glLoadIdentity(); | |
| 1625 } | |
| 1626 #endif | |
| 1627 } | |
| 1628 | |
| 1629 /* Unlock == restore saved state */ | |
| 1630 void SDL_GL_Unlock() | |
| 1631 { | |
| 1632 #ifdef HAVE_OPENGL | |
| 1633 lock_count++; | |
| 1634 if (lock_count==0) | |
| 1635 { | |
| 1636 SDL_VideoDevice *this = current_video; | |
| 1637 | |
| 1638 this->glPopMatrix(); | |
| 1639 this->glMatrixMode(GL_PROJECTION); | |
| 1640 this->glPopMatrix(); | |
| 1641 | |
| 1642 this->glPopClientAttrib(); | |
| 1643 this->glPopAttrib(); | |
| 1644 } | |
| 1645 #endif | |
| 1646 } | |
| 1647 | |
| 1648 /* | |
| 1649 * Sets/Gets the title and icon text of the display window, if any. | |
| 1650 */ | |
| 1651 void SDL_WM_SetCaption (const char *title, const char *icon) | |
| 1652 { | |
| 1653 SDL_VideoDevice *video = current_video; | |
| 1654 SDL_VideoDevice *this = current_video; | |
| 1655 | |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1656 if ( video ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1657 if ( title ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1658 if ( video->wm_title ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1659 free(video->wm_title); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1660 } |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1661 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
|
1662 if ( video->wm_title != NULL ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1663 strcpy(video->wm_title, title); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1664 } |
| 0 | 1665 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1666 if ( icon ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1667 if ( video->wm_icon ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1668 free(video->wm_icon); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1669 } |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1670 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
|
1671 if ( video->wm_icon != NULL ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1672 strcpy(video->wm_icon, icon); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1673 } |
| 0 | 1674 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
1675 if ( (title || icon) && (video->SetCaption != NULL) ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1676 video->SetCaption(this, video->wm_title,video->wm_icon); |
| 0 | 1677 } |
| 1678 } | |
| 1679 } | |
| 1680 void SDL_WM_GetCaption (char **title, char **icon) | |
| 1681 { | |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1682 SDL_VideoDevice *video = current_video; |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
1683 |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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diff
changeset
|
1684 if ( video ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
1685 if ( title ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1686 *title = video->wm_title; |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
1687 } |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1688 if ( icon ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1689 *icon = video->wm_icon; |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
1690 } |
| 0 | 1691 } |
| 1692 } | |
| 1693 | |
|
541
796f2fe699be
Support 1-bit alpha on surfaces passed to SDL_WM_SetIcon() (thanks Glenn!)
Sam Lantinga <slouken@libsdl.org>
parents:
509
diff
changeset
|
1694 /* 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:
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diff
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|
1695 * 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>
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509
diff
changeset
|
1696 static void CreateMaskFromColorKeyOrAlpha(SDL_Surface *icon, Uint8 *mask, int flags) |
| 0 | 1697 { |
| 1698 int x, y; | |
| 1699 Uint32 colorkey; | |
| 1700 #define SET_MASKBIT(icon, x, y, mask) \ | |
| 1701 mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8))) | |
| 1702 | |
| 1703 colorkey = icon->format->colorkey; | |
| 1704 switch (icon->format->BytesPerPixel) { | |
| 1705 case 1: { Uint8 *pixels; | |
| 1706 for ( y=0; y<icon->h; ++y ) { | |
| 1707 pixels = (Uint8 *)icon->pixels + y*icon->pitch; | |
| 1708 for ( x=0; x<icon->w; ++x ) { | |
| 1709 if ( *pixels++ == colorkey ) { | |
| 1710 SET_MASKBIT(icon, x, y, mask); | |
| 1711 } | |
| 1712 } | |
| 1713 } | |
| 1714 } | |
| 1715 break; | |
| 1716 | |
| 1717 case 2: { Uint16 *pixels; | |
| 1718 for ( y=0; y<icon->h; ++y ) { | |
| 1719 pixels = (Uint16 *)icon->pixels + | |
| 1720 y*icon->pitch/2; | |
| 1721 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:
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diff
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|
1722 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
|
1723 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>
parents:
509
diff
changeset
|
1724 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1725 SET_MASKBIT(icon, x, y, mask); |
| 1726 } | |
|
541
796f2fe699be
Support 1-bit alpha on surfaces passed to SDL_WM_SetIcon() (thanks Glenn!)
Sam Lantinga <slouken@libsdl.org>
parents:
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1727 pixels++; |
| 0 | 1728 } |
| 1729 } | |
| 1730 } | |
| 1731 break; | |
| 1732 | |
| 1733 case 4: { Uint32 *pixels; | |
| 1734 for ( y=0; y<icon->h; ++y ) { | |
| 1735 pixels = (Uint32 *)icon->pixels + | |
| 1736 y*icon->pitch/4; | |
| 1737 for ( x=0; x<icon->w; ++x ) { | |
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1738 if ( (flags & 1) && *pixels == colorkey ) { |
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1739 SET_MASKBIT(icon, x, y, mask); |
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1740 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1741 SET_MASKBIT(icon, x, y, mask); |
| 1742 } | |
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1743 pixels++; |
| 0 | 1744 } |
| 1745 } | |
| 1746 } | |
| 1747 break; | |
| 1748 } | |
| 1749 } | |
| 1750 | |
| 1751 /* | |
| 1752 * Sets the window manager icon for the display window. | |
| 1753 */ | |
| 1754 void SDL_WM_SetIcon (SDL_Surface *icon, Uint8 *mask) | |
| 1755 { | |
| 1756 SDL_VideoDevice *video = current_video; | |
| 1757 SDL_VideoDevice *this = current_video; | |
| 1758 | |
| 1759 if ( icon && video->SetIcon ) { | |
| 1760 /* Generate a mask if necessary, and create the icon! */ | |
| 1761 if ( mask == NULL ) { | |
| 1762 int mask_len = icon->h*(icon->w+7)/8; | |
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1763 int flags = 0; |
| 0 | 1764 mask = (Uint8 *)malloc(mask_len); |
| 1765 if ( mask == NULL ) { | |
| 1766 return; | |
| 1767 } | |
| 1768 memset(mask, ~0, mask_len); | |
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1769 if ( icon->flags & SDL_SRCCOLORKEY ) flags |= 1; |
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1770 if ( icon->flags & SDL_SRCALPHA ) flags |= 2; |
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1771 if( flags ) { |
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1772 CreateMaskFromColorKeyOrAlpha(icon, mask, flags); |
| 0 | 1773 } |
| 1774 video->SetIcon(video, icon, mask); | |
| 1775 free(mask); | |
| 1776 } else { | |
| 1777 video->SetIcon(this, icon, mask); | |
| 1778 } | |
| 1779 } | |
| 1780 } | |
| 1781 | |
| 1782 /* | |
| 1783 * Grab or ungrab the keyboard and mouse input. | |
| 1784 * This function returns the final grab mode after calling the | |
| 1785 * driver dependent function. | |
| 1786 */ | |
| 1787 static SDL_GrabMode SDL_WM_GrabInputRaw(SDL_GrabMode mode) | |
| 1788 { | |
| 1789 SDL_VideoDevice *video = current_video; | |
| 1790 SDL_VideoDevice *this = current_video; | |
| 1791 | |
| 1792 /* Only do something if we have support for grabs */ | |
| 1793 if ( video->GrabInput == NULL ) { | |
| 1794 return(video->input_grab); | |
| 1795 } | |
| 1796 | |
| 1797 /* If the final grab mode if off, only then do we actually grab */ | |
| 1798 #ifdef DEBUG_GRAB | |
| 1799 printf("SDL_WM_GrabInputRaw(%d) ... ", mode); | |
| 1800 #endif | |
| 1801 if ( mode == SDL_GRAB_OFF ) { | |
| 1802 if ( video->input_grab != SDL_GRAB_OFF ) { | |
| 1803 mode = video->GrabInput(this, mode); | |
| 1804 } | |
| 1805 } else { | |
| 1806 if ( video->input_grab == SDL_GRAB_OFF ) { | |
| 1807 mode = video->GrabInput(this, mode); | |
| 1808 } | |
| 1809 } | |
| 1810 if ( mode != video->input_grab ) { | |
| 1811 video->input_grab = mode; | |
| 1812 if ( video->CheckMouseMode ) { | |
| 1813 video->CheckMouseMode(this); | |
| 1814 } | |
| 1815 } | |
| 1816 #ifdef DEBUG_GRAB | |
| 1817 printf("Final mode %d\n", video->input_grab); | |
| 1818 #endif | |
| 1819 | |
| 1820 /* Return the final grab state */ | |
| 1821 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1822 mode -= SDL_GRAB_FULLSCREEN; | |
| 1823 } | |
| 1824 return(mode); | |
| 1825 } | |
| 1826 SDL_GrabMode SDL_WM_GrabInput(SDL_GrabMode mode) | |
| 1827 { | |
| 1828 SDL_VideoDevice *video = current_video; | |
| 1829 | |
|
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1830 /* If the video isn't initialized yet, we can't do anything */ |
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1831 if ( ! video ) { |
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1832 return SDL_GRAB_OFF; |
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1833 } |
| 0 | 1834 |
| 1835 /* Return the current mode on query */ | |
| 1836 if ( mode == SDL_GRAB_QUERY ) { | |
| 1837 mode = video->input_grab; | |
| 1838 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1839 mode -= SDL_GRAB_FULLSCREEN; | |
| 1840 } | |
| 1841 return(mode); | |
| 1842 } | |
| 1843 | |
| 1844 #ifdef DEBUG_GRAB | |
| 1845 printf("SDL_WM_GrabInput(%d) ... ", mode); | |
| 1846 #endif | |
| 1847 /* If the video surface is fullscreen, we always grab */ | |
| 1848 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1849 mode -= SDL_GRAB_FULLSCREEN; | |
| 1850 } | |
| 1851 if ( SDL_VideoSurface && (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { | |
| 1852 mode += SDL_GRAB_FULLSCREEN; | |
| 1853 } | |
| 1854 return(SDL_WM_GrabInputRaw(mode)); | |
| 1855 } | |
| 1856 static SDL_GrabMode SDL_WM_GrabInputOff(void) | |
| 1857 { | |
| 1858 SDL_GrabMode mode; | |
| 1859 | |
| 1860 /* First query the current grab state */ | |
| 1861 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 1862 | |
| 1863 /* Now explicitly turn off input grab */ | |
| 1864 SDL_WM_GrabInputRaw(SDL_GRAB_OFF); | |
| 1865 | |
| 1866 /* Return the old state */ | |
| 1867 return(mode); | |
| 1868 } | |
| 1869 | |
| 1870 /* | |
| 1871 * Iconify the window in window managed environments. | |
| 1872 * A successful iconification will result in an SDL_APPACTIVE loss event. | |
| 1873 */ | |
| 1874 int SDL_WM_IconifyWindow(void) | |
| 1875 { | |
| 1876 SDL_VideoDevice *video = current_video; | |
| 1877 SDL_VideoDevice *this = current_video; | |
| 1878 int retval; | |
| 1879 | |
| 1880 retval = 0; | |
| 1881 if ( video->IconifyWindow ) { | |
| 1882 retval = video->IconifyWindow(this); | |
| 1883 } | |
| 1884 return(retval); | |
| 1885 } | |
| 1886 | |
| 1887 /* | |
| 1888 * Toggle fullscreen mode | |
| 1889 */ | |
| 1890 int SDL_WM_ToggleFullScreen(SDL_Surface *surface) | |
| 1891 { | |
| 1892 SDL_VideoDevice *video = current_video; | |
| 1893 SDL_VideoDevice *this = current_video; | |
| 1894 int toggled; | |
| 1895 | |
| 1896 toggled = 0; | |
| 1897 if ( SDL_PublicSurface && (surface == SDL_PublicSurface) && | |
| 1898 video->ToggleFullScreen ) { | |
| 1899 if ( surface->flags & SDL_FULLSCREEN ) { | |
| 1900 toggled = video->ToggleFullScreen(this, 0); | |
| 1901 if ( toggled ) { | |
| 1902 SDL_VideoSurface->flags &= ~SDL_FULLSCREEN; | |
| 1903 SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; | |
| 1904 } | |
| 1905 } else { | |
| 1906 toggled = video->ToggleFullScreen(this, 1); | |
| 1907 if ( toggled ) { | |
| 1908 SDL_VideoSurface->flags |= SDL_FULLSCREEN; | |
| 1909 SDL_PublicSurface->flags |= SDL_FULLSCREEN; | |
| 1910 } | |
| 1911 } | |
| 1912 /* Double-check the grab state inside SDL_WM_GrabInput() */ | |
| 1913 if ( toggled ) { | |
| 1914 SDL_WM_GrabInput(video->input_grab); | |
| 1915 } | |
| 1916 } | |
| 1917 return(toggled); | |
| 1918 } | |
| 1919 | |
| 1920 /* | |
| 1921 * Get some platform dependent window manager information | |
| 1922 */ | |
| 1923 int SDL_GetWMInfo (SDL_SysWMinfo *info) | |
| 1924 { | |
| 1925 SDL_VideoDevice *video = current_video; | |
| 1926 SDL_VideoDevice *this = current_video; | |
| 1927 | |
| 1928 if ( video && video->GetWMInfo ) { | |
| 1929 return(video->GetWMInfo(this, info)); | |
| 1930 } else { | |
| 1931 return(0); | |
| 1932 } | |
| 1933 } |