Mercurial > sdl-ios-xcode
annotate src/video/SDL_video.c @ 1269:905d5b482f2a
Some explanation on why SDL_RWFromFP doesn't always work on Win32
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 26 Jan 2006 06:10:34 +0000 |
| parents | a7bea6db3c3e |
| children | f418917e0b7a |
| 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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Updated the source with the correct e-mail address
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* The high-level video driver subsystem */ | |
| 29 | |
| 30 #include <stdio.h> | |
| 31 #include <stdlib.h> | |
| 32 #include <string.h> | |
| 33 | |
| 34 #include "SDL.h" | |
| 35 #include "SDL_error.h" | |
| 36 #include "SDL_video.h" | |
| 37 #include "SDL_events.h" | |
| 38 #include "SDL_mutex.h" | |
| 39 #include "SDL_sysvideo.h" | |
| 40 #include "SDL_sysevents.h" | |
| 41 #include "SDL_blit.h" | |
| 42 #include "SDL_pixels_c.h" | |
| 43 #include "SDL_events_c.h" | |
| 44 #include "SDL_cursor_c.h" | |
| 45 | |
| 46 /* Available video drivers */ | |
| 47 static VideoBootStrap *bootstrap[] = { | |
|
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48 #ifdef ENABLE_QUARTZ |
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49 &QZ_bootstrap, |
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50 #endif |
| 0 | 51 #ifdef ENABLE_X11 |
| 52 &X11_bootstrap, | |
| 53 #endif | |
| 54 #ifdef ENABLE_DGA | |
| 55 &DGA_bootstrap, | |
| 56 #endif | |
|
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Added initial support for Nano-X (thanks Hsieh-Fu!)
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57 #ifdef ENABLE_NANOX |
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58 &NX_bootstrap, |
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59 #endif |
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60 #ifdef ENABLE_IPOD |
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61 &iPod_bootstrap, |
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62 #endif |
| 567 | 63 #ifdef ENABLE_QTOPIA |
| 64 &Qtopia_bootstrap, | |
| 65 #endif | |
| 1187 | 66 #ifdef ENABLE_WSCONS |
| 67 &WSCONS_bootstrap, | |
| 68 #endif | |
| 0 | 69 #ifdef ENABLE_FBCON |
| 70 &FBCON_bootstrap, | |
| 71 #endif | |
|
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72 #ifdef ENABLE_DIRECTFB |
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73 &DirectFB_bootstrap, |
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74 #endif |
| 0 | 75 #ifdef ENABLE_PS2GS |
| 76 &PS2GS_bootstrap, | |
| 77 #endif | |
| 78 #ifdef ENABLE_GGI | |
| 79 &GGI_bootstrap, | |
| 80 #endif | |
|
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81 #ifdef ENABLE_VGL |
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82 &VGL_bootstrap, |
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83 #endif |
| 0 | 84 #ifdef ENABLE_SVGALIB |
| 85 &SVGALIB_bootstrap, | |
| 86 #endif | |
| 87 #ifdef ENABLE_AALIB | |
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88 &AALIB_bootstrap, |
| 0 | 89 #endif |
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90 #ifdef ENABLE_GAPI |
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91 &GAPI_bootstrap, |
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92 #endif |
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Bumped windib's priority above DirectX, since both DirectDraw and DirectInput
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93 #ifdef ENABLE_WINDIB |
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94 &WINDIB_bootstrap, |
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95 #endif |
| 0 | 96 #ifdef ENABLE_DIRECTX |
| 97 &DIRECTX_bootstrap, | |
| 98 #endif | |
| 99 #ifdef ENABLE_BWINDOW | |
| 100 &BWINDOW_bootstrap, | |
| 101 #endif | |
| 102 #ifdef ENABLE_TOOLBOX | |
| 103 &TOOLBOX_bootstrap, | |
| 104 #endif | |
| 105 #ifdef ENABLE_DRAWSPROCKET | |
| 106 &DSp_bootstrap, | |
| 107 #endif | |
| 108 #ifdef ENABLE_CYBERGRAPHICS | |
| 109 &CGX_bootstrap, | |
| 110 #endif | |
|
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111 #ifdef ENABLE_PHOTON |
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112 &ph_bootstrap, |
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113 #endif |
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114 #ifdef ENABLE_EPOC |
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115 &EPOC_bootstrap, |
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116 #endif |
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117 #ifdef ENABLE_XBIOS |
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118 &XBIOS_bootstrap, |
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119 #endif |
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120 #ifdef ENABLE_GEM |
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121 &GEM_bootstrap, |
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122 #endif |
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123 #ifdef ENABLE_PICOGUI |
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124 &PG_bootstrap, |
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125 #endif |
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126 #ifdef ENABLE_DC |
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127 &DC_bootstrap, |
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128 #endif |
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129 #ifdef ENABLE_RISCOS |
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130 &RISCOS_bootstrap, |
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131 #endif |
| 1190 | 132 #ifdef __OS2__ |
| 133 &OS2FSLib_bootstrap, | |
| 134 #endif | |
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135 #ifdef ENABLE_DUMMYVIDEO |
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136 &DUMMY_bootstrap, |
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137 #endif |
| 0 | 138 NULL |
| 139 }; | |
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140 |
| 0 | 141 SDL_VideoDevice *current_video = NULL; |
| 142 | |
| 143 /* Various local functions */ | |
| 144 int SDL_VideoInit(const char *driver_name, Uint32 flags); | |
| 145 void SDL_VideoQuit(void); | |
| 146 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect* rects); | |
| 147 | |
| 148 static SDL_GrabMode SDL_WM_GrabInputOff(void); | |
| 149 #ifdef HAVE_OPENGL | |
| 150 static int lock_count = 0; | |
| 151 #endif | |
| 152 | |
| 153 | |
| 154 /* | |
| 155 * Initialize the video and event subsystems -- determine native pixel format | |
| 156 */ | |
| 157 int SDL_VideoInit (const char *driver_name, Uint32 flags) | |
| 158 { | |
| 159 SDL_VideoDevice *video; | |
| 160 int index; | |
| 161 int i; | |
| 162 SDL_PixelFormat vformat; | |
| 163 Uint32 video_flags; | |
| 164 | |
| 165 /* Toggle the event thread flags, based on OS requirements */ | |
| 166 #if defined(MUST_THREAD_EVENTS) | |
| 167 flags |= SDL_INIT_EVENTTHREAD; | |
| 168 #elif defined(CANT_THREAD_EVENTS) | |
| 169 if ( (flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD ) { | |
| 170 SDL_SetError("OS doesn't support threaded events"); | |
| 171 return(-1); | |
| 172 } | |
| 173 #endif | |
| 174 | |
| 175 /* Check to make sure we don't overwrite 'current_video' */ | |
| 176 if ( current_video != NULL ) { | |
| 177 SDL_VideoQuit(); | |
| 178 } | |
| 179 | |
| 180 /* Select the proper video driver */ | |
| 181 index = 0; | |
| 182 video = NULL; | |
| 183 if ( driver_name != NULL ) { | |
| 184 #if 0 /* This will be replaced with a better driver selection API */ | |
| 185 if ( strrchr(driver_name, ':') != NULL ) { | |
| 186 index = atoi(strrchr(driver_name, ':')+1); | |
| 187 } | |
| 188 #endif | |
| 189 for ( i=0; bootstrap[i]; ++i ) { | |
| 190 if ( strncmp(bootstrap[i]->name, driver_name, | |
| 191 strlen(bootstrap[i]->name)) == 0 ) { | |
| 192 if ( bootstrap[i]->available() ) { | |
| 193 video = bootstrap[i]->create(index); | |
| 194 break; | |
| 195 } | |
| 196 } | |
| 197 } | |
| 198 } else { | |
| 199 for ( i=0; bootstrap[i]; ++i ) { | |
| 200 if ( bootstrap[i]->available() ) { | |
| 201 video = bootstrap[i]->create(index); | |
| 202 if ( video != NULL ) { | |
| 203 break; | |
| 204 } | |
| 205 } | |
| 206 } | |
| 207 } | |
| 208 if ( video == NULL ) { | |
| 209 SDL_SetError("No available video device"); | |
| 210 return(-1); | |
| 211 } | |
| 212 current_video = video; | |
| 213 current_video->name = bootstrap[i]->name; | |
| 214 | |
| 215 /* Do some basic variable initialization */ | |
| 216 video->screen = NULL; | |
| 217 video->shadow = NULL; | |
| 218 video->visible = NULL; | |
| 219 video->physpal = NULL; | |
| 220 video->gammacols = NULL; | |
| 221 video->gamma = NULL; | |
| 222 video->wm_title = NULL; | |
| 223 video->wm_icon = NULL; | |
| 224 video->offset_x = 0; | |
| 225 video->offset_y = 0; | |
| 226 memset(&video->info, 0, (sizeof video->info)); | |
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227 |
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228 video->displayformatalphapixel = NULL; |
| 0 | 229 |
| 230 /* Set some very sane GL defaults */ | |
| 231 video->gl_config.driver_loaded = 0; | |
| 232 video->gl_config.dll_handle = NULL; | |
| 233 video->gl_config.red_size = 5; | |
| 234 #if 1 /* This seems to work on more video cards, as a default */ | |
| 235 video->gl_config.green_size = 5; | |
| 236 #else | |
| 237 video->gl_config.green_size = 6; | |
| 238 #endif | |
| 239 video->gl_config.blue_size = 5; | |
| 240 video->gl_config.alpha_size = 0; | |
| 241 video->gl_config.buffer_size = 0; | |
| 242 video->gl_config.depth_size = 16; | |
| 243 video->gl_config.stencil_size = 0; | |
| 244 video->gl_config.double_buffer = 1; | |
| 245 video->gl_config.accum_red_size = 0; | |
| 246 video->gl_config.accum_green_size = 0; | |
| 247 video->gl_config.accum_blue_size = 0; | |
| 248 video->gl_config.accum_alpha_size = 0; | |
|
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249 video->gl_config.stereo = 0; |
|
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Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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250 video->gl_config.multisamplebuffers = 0; |
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251 video->gl_config.multisamplesamples = 0; |
| 0 | 252 |
| 253 /* Initialize the video subsystem */ | |
| 254 memset(&vformat, 0, sizeof(vformat)); | |
| 255 if ( video->VideoInit(video, &vformat) < 0 ) { | |
| 256 SDL_VideoQuit(); | |
| 257 return(-1); | |
| 258 } | |
| 259 | |
| 260 /* Create a zero sized video surface of the appropriate format */ | |
| 261 video_flags = SDL_SWSURFACE; | |
| 262 SDL_VideoSurface = SDL_CreateRGBSurface(video_flags, 0, 0, | |
| 263 vformat.BitsPerPixel, | |
| 264 vformat.Rmask, vformat.Gmask, vformat.Bmask, 0); | |
| 265 if ( SDL_VideoSurface == NULL ) { | |
| 266 SDL_VideoQuit(); | |
| 267 return(-1); | |
| 268 } | |
| 269 SDL_PublicSurface = NULL; /* Until SDL_SetVideoMode() */ | |
| 270 | |
| 271 #if 0 /* Don't change the current palette - may be used by other programs. | |
| 272 * The application can't do anything with the display surface until | |
| 273 * a video mode has been set anyway. :) | |
| 274 */ | |
| 275 /* If we have a palettized surface, create a default palette */ | |
| 276 if ( SDL_VideoSurface->format->palette ) { | |
|
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277 SDL_PixelFormat *vf = SDL_VideoSurface->format; |
| 0 | 278 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 279 video->SetColors(video, | |
| 280 0, vf->palette->ncolors, vf->palette->colors); | |
| 281 } | |
| 282 #endif | |
| 283 video->info.vfmt = SDL_VideoSurface->format; | |
| 284 | |
| 285 /* Start the event loop */ | |
| 286 if ( SDL_StartEventLoop(flags) < 0 ) { | |
| 287 SDL_VideoQuit(); | |
| 288 return(-1); | |
| 289 } | |
| 290 SDL_CursorInit(flags & SDL_INIT_EVENTTHREAD); | |
| 291 | |
| 292 /* We're ready to go! */ | |
| 293 return(0); | |
| 294 } | |
| 295 | |
| 296 char *SDL_VideoDriverName(char *namebuf, int maxlen) | |
| 297 { | |
| 298 if ( current_video != NULL ) { | |
| 299 strncpy(namebuf, current_video->name, maxlen-1); | |
| 300 namebuf[maxlen-1] = '\0'; | |
| 301 return(namebuf); | |
| 302 } | |
| 303 return(NULL); | |
| 304 } | |
| 305 | |
| 306 /* | |
| 307 * Get the current display surface | |
| 308 */ | |
| 309 SDL_Surface *SDL_GetVideoSurface(void) | |
| 310 { | |
| 311 SDL_Surface *visible; | |
| 312 | |
| 313 visible = NULL; | |
| 314 if ( current_video ) { | |
| 315 visible = current_video->visible; | |
| 316 } | |
| 317 return(visible); | |
| 318 } | |
| 319 | |
| 320 /* | |
| 321 * Get the current information about the video hardware | |
| 322 */ | |
| 323 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
| 324 { | |
| 325 const SDL_VideoInfo *info; | |
| 326 | |
| 327 info = NULL; | |
| 328 if ( current_video ) { | |
| 329 info = ¤t_video->info; | |
| 330 } | |
| 331 return(info); | |
| 332 } | |
| 333 | |
| 334 /* | |
| 335 * Return a pointer to an array of available screen dimensions for the | |
| 336 * given format, sorted largest to smallest. Returns NULL if there are | |
| 337 * no dimensions available for a particular format, or (SDL_Rect **)-1 | |
| 338 * if any dimension is okay for the given format. If 'format' is NULL, | |
| 339 * the mode list will be for the format given by SDL_GetVideoInfo()->vfmt | |
| 340 */ | |
| 341 SDL_Rect ** SDL_ListModes (SDL_PixelFormat *format, Uint32 flags) | |
| 342 { | |
| 343 SDL_VideoDevice *video = current_video; | |
| 344 SDL_VideoDevice *this = current_video; | |
| 345 SDL_Rect **modes; | |
| 346 | |
| 347 modes = NULL; | |
| 348 if ( SDL_VideoSurface ) { | |
| 349 if ( format == NULL ) { | |
| 350 format = SDL_VideoSurface->format; | |
| 351 } | |
| 352 modes = video->ListModes(this, format, flags); | |
| 353 } | |
| 354 return(modes); | |
| 355 } | |
| 356 | |
| 357 /* | |
| 358 * Check to see if a particular video mode is supported. | |
| 359 * It returns 0 if the requested mode is not supported under any bit depth, | |
| 360 * or returns the bits-per-pixel of the closest available mode with the | |
| 361 * given width and height. If this bits-per-pixel is different from the | |
| 362 * one used when setting the video mode, SDL_SetVideoMode() will succeed, | |
| 363 * but will emulate the requested bits-per-pixel with a shadow surface. | |
| 364 */ | |
| 365 static Uint8 SDL_closest_depths[4][8] = { | |
| 366 /* 8 bit closest depth ordering */ | |
| 367 { 0, 8, 16, 15, 32, 24, 0, 0 }, | |
| 368 /* 15,16 bit closest depth ordering */ | |
| 369 { 0, 16, 15, 32, 24, 8, 0, 0 }, | |
| 370 /* 24 bit closest depth ordering */ | |
| 371 { 0, 24, 32, 16, 15, 8, 0, 0 }, | |
| 372 /* 32 bit closest depth ordering */ | |
| 373 { 0, 32, 16, 15, 24, 8, 0, 0 } | |
| 374 }; | |
| 375 | |
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376 |
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377 #ifdef macintosh /* MPW optimization bug? */ |
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378 #define NEGATIVE_ONE 0xFFFFFFFF |
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379 #else |
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380 #define NEGATIVE_ONE -1 |
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381 #endif |
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382 |
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383 int SDL_VideoModeOK (int width, int height, int bpp, Uint32 flags) |
| 0 | 384 { |
| 385 int table, b, i; | |
| 386 int supported; | |
| 387 SDL_PixelFormat format; | |
| 388 SDL_Rect **sizes; | |
| 389 | |
| 390 /* Currently 1 and 4 bpp are not supported */ | |
| 391 if ( bpp < 8 || bpp > 32 ) { | |
| 392 return(0); | |
| 393 } | |
|
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394 if ( (width <= 0) || (height <= 0) ) { |
| 0 | 395 return(0); |
| 396 } | |
| 397 | |
| 398 /* Search through the list valid of modes */ | |
| 399 memset(&format, 0, sizeof(format)); | |
| 400 supported = 0; | |
| 401 table = ((bpp+7)/8)-1; | |
| 402 SDL_closest_depths[table][0] = bpp; | |
| 403 SDL_closest_depths[table][7] = 0; | |
| 404 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 405 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 406 sizes = SDL_ListModes(&format, flags); | |
| 407 if ( sizes == (SDL_Rect **)0 ) { | |
| 408 /* No sizes supported at this bit-depth */ | |
| 409 continue; | |
| 410 } else | |
|
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411 if (sizes == (SDL_Rect **)NEGATIVE_ONE) { |
| 0 | 412 /* Any size supported at this bit-depth */ |
| 413 supported = 1; | |
| 414 continue; | |
|
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415 } else if (current_video->handles_any_size) { |
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416 /* Driver can center a smaller surface to simulate fullscreen */ |
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417 for ( i=0; sizes[i]; ++i ) { |
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418 if ((sizes[i]->w >= width) && (sizes[i]->h >= height)) { |
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419 supported = 1; /* this mode can fit the centered window. */ |
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420 break; |
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421 } |
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422 } |
| 0 | 423 } else |
| 424 for ( i=0; sizes[i]; ++i ) { | |
| 425 if ((sizes[i]->w == width) && (sizes[i]->h == height)) { | |
| 426 supported = 1; | |
| 427 break; | |
| 428 } | |
| 429 } | |
| 430 } | |
| 431 if ( supported ) { | |
| 432 --b; | |
| 433 return(SDL_closest_depths[table][b]); | |
| 434 } else { | |
| 435 return(0); | |
| 436 } | |
| 437 } | |
| 438 | |
| 439 /* | |
| 440 * Get the closest non-emulated video mode to the one requested | |
| 441 */ | |
| 442 static int SDL_GetVideoMode (int *w, int *h, int *BitsPerPixel, Uint32 flags) | |
| 443 { | |
| 444 int table, b, i; | |
| 445 int supported; | |
| 446 int native_bpp; | |
| 447 SDL_PixelFormat format; | |
| 448 SDL_Rect **sizes; | |
| 449 | |
|
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450 /* Check parameters */ |
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451 if ( *BitsPerPixel < 8 || *BitsPerPixel > 32 ) { |
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452 SDL_SetError("Invalid bits per pixel (range is {8...32})"); |
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453 return(0); |
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454 } |
|
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455 if ((*w <= 0) || (*h <= 0)) { |
|
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456 SDL_SetError("Invalid width or height"); |
|
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457 return(0); |
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458 } |
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459 |
| 0 | 460 /* Try the original video mode, get the closest depth */ |
| 461 native_bpp = SDL_VideoModeOK(*w, *h, *BitsPerPixel, flags); | |
| 462 if ( native_bpp == *BitsPerPixel ) { | |
| 463 return(1); | |
| 464 } | |
| 465 if ( native_bpp > 0 ) { | |
| 466 *BitsPerPixel = native_bpp; | |
| 467 return(1); | |
| 468 } | |
| 469 | |
| 470 /* No exact size match at any depth, look for closest match */ | |
| 471 memset(&format, 0, sizeof(format)); | |
| 472 supported = 0; | |
| 473 table = ((*BitsPerPixel+7)/8)-1; | |
| 474 SDL_closest_depths[table][0] = *BitsPerPixel; | |
| 475 SDL_closest_depths[table][7] = SDL_VideoSurface->format->BitsPerPixel; | |
| 476 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
|
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477 int best; |
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478 |
| 0 | 479 format.BitsPerPixel = SDL_closest_depths[table][b]; |
| 480 sizes = SDL_ListModes(&format, flags); | |
| 481 if ( sizes == (SDL_Rect **)0 ) { | |
| 482 /* No sizes supported at this bit-depth */ | |
| 483 continue; | |
| 484 } | |
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485 best=0; |
| 0 | 486 for ( i=0; sizes[i]; ++i ) { |
|
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487 /* Mode with both dimensions bigger or equal than asked ? */ |
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488 if ((sizes[i]->w >= *w) && (sizes[i]->h >= *h)) { |
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489 /* Mode with any dimension smaller or equal than current best ? */ |
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490 if ((sizes[i]->w <= sizes[best]->w) || (sizes[i]->h <= sizes[best]->h)) { |
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491 /* Now choose the mode that has less pixels */ |
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492 if ((sizes[i]->w * sizes[i]->h) <= (sizes[best]->w * sizes[best]->h)) { |
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493 best=i; |
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494 supported = 1; |
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495 } |
| 0 | 496 } |
| 497 } | |
| 498 } | |
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499 if (supported) { |
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500 *w=sizes[best]->w; |
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501 *h=sizes[best]->h; |
| 0 | 502 *BitsPerPixel = SDL_closest_depths[table][b]; |
| 503 } | |
| 504 } | |
| 505 if ( ! supported ) { | |
| 506 SDL_SetError("No video mode large enough for %dx%d", *w, *h); | |
| 507 } | |
| 508 return(supported); | |
| 509 } | |
| 510 | |
| 511 /* This should probably go somewhere else -- like SDL_surface.c */ | |
| 512 static void SDL_ClearSurface(SDL_Surface *surface) | |
| 513 { | |
| 514 Uint32 black; | |
| 515 | |
| 516 black = SDL_MapRGB(surface->format, 0, 0, 0); | |
| 517 SDL_FillRect(surface, NULL, black); | |
| 518 if ((surface->flags&SDL_HWSURFACE) && (surface->flags&SDL_DOUBLEBUF)) { | |
| 519 SDL_Flip(surface); | |
| 520 SDL_FillRect(surface, NULL, black); | |
| 521 } | |
| 522 SDL_Flip(surface); | |
| 523 } | |
| 524 | |
| 525 /* | |
| 526 * Create a shadow surface suitable for fooling the app. :-) | |
| 527 */ | |
| 528 static void SDL_CreateShadowSurface(int depth) | |
| 529 { | |
| 530 Uint32 Rmask, Gmask, Bmask; | |
| 531 | |
| 532 /* Allocate the shadow surface */ | |
| 533 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 534 Rmask = (SDL_VideoSurface->format)->Rmask; | |
| 535 Gmask = (SDL_VideoSurface->format)->Gmask; | |
| 536 Bmask = (SDL_VideoSurface->format)->Bmask; | |
| 537 } else { | |
| 538 Rmask = Gmask = Bmask = 0; | |
| 539 } | |
| 540 SDL_ShadowSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
| 541 SDL_VideoSurface->w, SDL_VideoSurface->h, | |
| 542 depth, Rmask, Gmask, Bmask, 0); | |
| 543 if ( SDL_ShadowSurface == NULL ) { | |
| 544 return; | |
| 545 } | |
| 546 | |
| 547 /* 8-bit shadow surfaces report that they have exclusive palette */ | |
| 548 if ( SDL_ShadowSurface->format->palette ) { | |
| 549 SDL_ShadowSurface->flags |= SDL_HWPALETTE; | |
| 550 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 551 memcpy(SDL_ShadowSurface->format->palette->colors, | |
| 552 SDL_VideoSurface->format->palette->colors, | |
| 553 SDL_VideoSurface->format->palette->ncolors* | |
| 554 sizeof(SDL_Color)); | |
| 555 } else { | |
| 556 SDL_DitherColors( | |
| 557 SDL_ShadowSurface->format->palette->colors, depth); | |
| 558 } | |
| 559 } | |
| 560 | |
| 561 /* If the video surface is resizable, the shadow should say so */ | |
| 562 if ( (SDL_VideoSurface->flags & SDL_RESIZABLE) == SDL_RESIZABLE ) { | |
| 563 SDL_ShadowSurface->flags |= SDL_RESIZABLE; | |
| 564 } | |
| 565 /* If the video surface has no frame, the shadow should say so */ | |
| 566 if ( (SDL_VideoSurface->flags & SDL_NOFRAME) == SDL_NOFRAME ) { | |
| 567 SDL_ShadowSurface->flags |= SDL_NOFRAME; | |
| 568 } | |
| 569 /* If the video surface is fullscreen, the shadow should say so */ | |
| 570 if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 571 SDL_ShadowSurface->flags |= SDL_FULLSCREEN; | |
| 572 } | |
| 573 /* If the video surface is flippable, the shadow should say so */ | |
| 574 if ( (SDL_VideoSurface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 575 SDL_ShadowSurface->flags |= SDL_DOUBLEBUF; | |
| 576 } | |
| 577 return; | |
| 578 } | |
| 579 | |
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580 #ifdef __QNXNTO__ |
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581 #include <sys/neutrino.h> |
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582 #endif /* __QNXNTO__ */ |
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583 |
| 0 | 584 /* |
| 585 * Set the requested video mode, allocating a shadow buffer if necessary. | |
| 586 */ | |
| 587 SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags) | |
| 588 { | |
| 589 SDL_VideoDevice *video, *this; | |
| 590 SDL_Surface *prev_mode, *mode; | |
| 591 int video_w; | |
| 592 int video_h; | |
| 593 int video_bpp; | |
| 594 int is_opengl; | |
| 595 SDL_GrabMode saved_grab; | |
| 596 | |
| 597 /* Start up the video driver, if necessary.. | |
| 598 WARNING: This is the only function protected this way! | |
| 599 */ | |
| 600 if ( ! current_video ) { | |
| 601 if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE) < 0 ) { | |
| 602 return(NULL); | |
| 603 } | |
| 604 } | |
| 605 this = video = current_video; | |
| 606 | |
| 607 /* Default to the current video bpp */ | |
| 608 if ( bpp == 0 ) { | |
| 609 flags |= SDL_ANYFORMAT; | |
| 610 bpp = SDL_VideoSurface->format->BitsPerPixel; | |
| 611 } | |
| 612 | |
| 613 /* Get a good video mode, the closest one possible */ | |
| 614 video_w = width; | |
| 615 video_h = height; | |
| 616 video_bpp = bpp; | |
| 617 if ( ! SDL_GetVideoMode(&video_w, &video_h, &video_bpp, flags) ) { | |
| 618 return(NULL); | |
| 619 } | |
| 620 | |
| 621 /* Check the requested flags */ | |
| 622 /* There's no palette in > 8 bits-per-pixel mode */ | |
| 623 if ( video_bpp > 8 ) { | |
| 624 flags &= ~SDL_HWPALETTE; | |
| 625 } | |
| 626 #if 0 | |
| 627 if ( (flags&SDL_FULLSCREEN) != SDL_FULLSCREEN ) { | |
| 628 /* There's no windowed double-buffering */ | |
| 629 flags &= ~SDL_DOUBLEBUF; | |
| 630 } | |
| 631 #endif | |
| 632 if ( (flags&SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 633 /* Use hardware surfaces when double-buffering */ | |
| 634 flags |= SDL_HWSURFACE; | |
| 635 } | |
| 636 | |
| 637 is_opengl = ( ( flags & SDL_OPENGL ) == SDL_OPENGL ); | |
| 638 if ( is_opengl ) { | |
| 639 /* These flags are for 2D video modes only */ | |
| 640 flags &= ~(SDL_HWSURFACE|SDL_DOUBLEBUF); | |
| 641 } | |
| 642 | |
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643 /* Reset the keyboard here so event callbacks can run */ |
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644 SDL_ResetKeyboard(); |
|
460
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645 SDL_ResetMouse(); |
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646 |
| 0 | 647 /* Clean up any previous video mode */ |
| 648 if ( SDL_PublicSurface != NULL ) { | |
| 649 SDL_PublicSurface = NULL; | |
| 650 } | |
| 651 if ( SDL_ShadowSurface != NULL ) { | |
| 652 SDL_Surface *ready_to_go; | |
| 653 ready_to_go = SDL_ShadowSurface; | |
| 654 SDL_ShadowSurface = NULL; | |
| 655 SDL_FreeSurface(ready_to_go); | |
| 656 } | |
| 657 if ( video->physpal ) { | |
| 658 free(video->physpal->colors); | |
| 659 free(video->physpal); | |
| 660 video->physpal = NULL; | |
| 661 } | |
| 662 if( video->gammacols) { | |
|
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663 free(video->gammacols); |
| 0 | 664 video->gammacols = NULL; |
| 665 } | |
| 666 | |
| 667 /* Save the previous grab state and turn off grab for mode switch */ | |
| 668 saved_grab = SDL_WM_GrabInputOff(); | |
| 669 | |
| 670 /* Try to set the video mode, along with offset and clipping */ | |
| 671 prev_mode = SDL_VideoSurface; | |
| 672 SDL_LockCursor(); | |
| 673 SDL_VideoSurface = NULL; /* In case it's freed by driver */ | |
| 674 mode = video->SetVideoMode(this, prev_mode,video_w,video_h,video_bpp,flags); | |
| 675 if ( mode ) { /* Prevent resize events from mode change */ | |
| 1190 | 676 /* But not on OS/2 */ |
| 677 #ifndef __OS2__ | |
| 0 | 678 SDL_PrivateResize(mode->w, mode->h); |
| 1190 | 679 #endif |
|
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680 |
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681 /* Sam - If we asked for OpenGL mode, and didn't get it, fail */ |
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682 if ( is_opengl && !(mode->flags & SDL_OPENGL) ) { |
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683 mode = NULL; |
|
883
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Date: Sat, 10 Apr 2004 02:25:33 -0400
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parents:
853
diff
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|
684 SDL_SetError("OpenGL not available"); |
|
229
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Fix a crash if an OpenGL video mode can't be set.
Sam Lantinga <slouken@libsdl.org>
parents:
216
diff
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685 } |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
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|
686 } |
| 0 | 687 /* |
| 688 * rcg11292000 | |
| 689 * If you try to set an SDL_OPENGL surface, and fail to find a | |
| 690 * matching visual, then the next call to SDL_SetVideoMode() | |
| 691 * will segfault, since we no longer point to a dummy surface, | |
| 692 * but rather NULL. | |
| 693 * Sam 11/29/00 | |
| 694 * WARNING, we need to make sure that the previous mode hasn't | |
| 695 * already been freed by the video driver. What do we do in | |
| 696 * that case? Should we call SDL_VideoInit() again? | |
| 697 */ | |
| 698 SDL_VideoSurface = (mode != NULL) ? mode : prev_mode; | |
| 699 | |
| 700 if ( (mode != NULL) && (!is_opengl) ) { | |
| 701 /* Sanity check */ | |
| 702 if ( (mode->w < width) || (mode->h < height) ) { | |
| 703 SDL_SetError("Video mode smaller than requested"); | |
| 704 return(NULL); | |
| 705 } | |
| 706 | |
| 707 /* If we have a palettized surface, create a default palette */ | |
| 708 if ( mode->format->palette ) { | |
|
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66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
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|
709 SDL_PixelFormat *vf = mode->format; |
| 0 | 710 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 711 video->SetColors(this, 0, vf->palette->ncolors, | |
| 712 vf->palette->colors); | |
| 713 } | |
| 714 | |
| 715 /* Clear the surface to black */ | |
| 716 video->offset_x = 0; | |
| 717 video->offset_y = 0; | |
| 718 mode->offset = 0; | |
| 719 SDL_SetClipRect(mode, NULL); | |
| 720 SDL_ClearSurface(mode); | |
| 721 | |
| 722 /* Now adjust the offsets to match the desired mode */ | |
| 723 video->offset_x = (mode->w-width)/2; | |
| 724 video->offset_y = (mode->h-height)/2; | |
| 725 mode->offset = video->offset_y*mode->pitch + | |
| 726 video->offset_x*mode->format->BytesPerPixel; | |
| 727 #ifdef DEBUG_VIDEO | |
| 728 fprintf(stderr, | |
| 729 "Requested mode: %dx%dx%d, obtained mode %dx%dx%d (offset %d)\n", | |
| 730 width, height, bpp, | |
| 731 mode->w, mode->h, mode->format->BitsPerPixel, mode->offset); | |
| 732 #endif | |
| 733 mode->w = width; | |
| 734 mode->h = height; | |
| 735 SDL_SetClipRect(mode, NULL); | |
| 736 } | |
| 737 SDL_ResetCursor(); | |
| 738 SDL_UnlockCursor(); | |
| 739 | |
| 740 /* If we failed setting a video mode, return NULL... (Uh Oh!) */ | |
| 741 if ( mode == NULL ) { | |
| 742 return(NULL); | |
| 743 } | |
| 744 | |
| 745 /* If there is no window manager, set the SDL_NOFRAME flag */ | |
| 746 if ( ! video->info.wm_available ) { | |
| 747 mode->flags |= SDL_NOFRAME; | |
| 748 } | |
| 749 | |
| 750 /* Reset the mouse cursor and grab for new video mode */ | |
| 751 SDL_SetCursor(NULL); | |
| 752 if ( video->UpdateMouse ) { | |
| 753 video->UpdateMouse(this); | |
| 754 } | |
| 755 SDL_WM_GrabInput(saved_grab); | |
| 756 SDL_GetRelativeMouseState(NULL, NULL); /* Clear first large delta */ | |
| 757 | |
|
650
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We need to lookup the address of glGetString before calling GL_MakeCurrent(),
Ryan C. Gordon <icculus@icculus.org>
parents:
630
diff
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|
758 #ifdef HAVE_OPENGL |
|
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
Ryan C. Gordon <icculus@icculus.org>
parents:
630
diff
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|
759 /* Load GL symbols (before MakeCurrent, where we need glGetString). */ |
|
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
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parents:
630
diff
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|
760 if ( flags & (SDL_OPENGL | SDL_OPENGLBLIT) ) { |
|
910
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
883
diff
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|
761 |
|
1032
c1c2efca4548
Date: Mon, 24 Jan 2005 21:37:56 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
989
diff
changeset
|
762 #if defined(__QNXNTO__) && (_NTO_VERSION < 630) |
|
916
46916168361d
Date: Sun, 25 Jul 2004 23:10:03 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
910
diff
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|
763 #define __SDL_NOGETPROCADDR__ |
|
989
475166d13b44
Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
944
diff
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|
764 #elif defined(__MINT__) |
|
475166d13b44
Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
944
diff
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|
765 #define __SDL_NOGETPROCADDR__ |
|
916
46916168361d
Date: Sun, 25 Jul 2004 23:10:03 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
910
diff
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|
766 #endif |
|
910
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
883
diff
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|
767 #ifdef __SDL_NOGETPROCADDR__ |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
883
diff
changeset
|
768 #define SDL_PROC(ret,func,params) video->func=func; |
|
663
8bedd6d61642
Date: Sat, 2 Aug 2003 16:22:51 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
662
diff
changeset
|
769 #else |
|
910
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
883
diff
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|
770 #define SDL_PROC(ret,func,params) \ |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
771 do { \ |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
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|
772 video->func = SDL_GL_GetProcAddress(#func); \ |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
773 if ( ! video->func ) { \ |
|
1141
fe1fa56dcbc6
If couldn't load a needed GL symbol in SDL_SetVideoMode(), report it more
Ryan C. Gordon <icculus@icculus.org>
parents:
1140
diff
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|
774 SDL_SetError("Couldn't load GL function %s: %s\n", #func, SDL_GetError()); \ |
|
910
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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parents:
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diff
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|
775 return(NULL); \ |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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parents:
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diff
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|
776 } \ |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
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|
777 } while ( 0 ); |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
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|
778 |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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parents:
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diff
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|
779 #endif /* __SDL_NOGETPROCADDR__ */ |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
780 |
|
650
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
Ryan C. Gordon <icculus@icculus.org>
parents:
630
diff
changeset
|
781 #include "SDL_glfuncs.h" |
|
fe445b59d307
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|
782 #undef SDL_PROC |
|
fe445b59d307
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Ryan C. Gordon <icculus@icculus.org>
parents:
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diff
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|
783 } |
|
910
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
784 #endif /* HAVE_OPENGL */ |
|
650
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Ryan C. Gordon <icculus@icculus.org>
parents:
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diff
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|
785 |
| 0 | 786 /* If we're running OpenGL, make the context current */ |
| 787 if ( (video->screen->flags & SDL_OPENGL) && | |
| 788 video->GL_MakeCurrent ) { | |
| 789 if ( video->GL_MakeCurrent(this) < 0 ) { | |
| 790 return(NULL); | |
| 791 } | |
| 792 } | |
| 793 | |
| 794 /* Set up a fake SDL surface for OpenGL "blitting" */ | |
| 795 if ( (flags & SDL_OPENGLBLIT) == SDL_OPENGLBLIT ) { | |
| 796 /* Load GL functions for performing the texture updates */ | |
| 797 #ifdef HAVE_OPENGL | |
| 798 | |
| 799 /* Create a software surface for blitting */ | |
| 800 #ifdef GL_VERSION_1_2 | |
| 801 /* If the implementation either supports the packed pixels | |
| 802 extension, or implements the core OpenGL 1.2 API, it will | |
| 803 support the GL_UNSIGNED_SHORT_5_6_5 texture format. | |
| 804 */ | |
| 805 if ( (bpp == 16) && | |
|
282
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Fixed SDL_OPENGLBLIT with OpenGL API newer than 1.2
Sam Lantinga <slouken@libsdl.org>
parents:
281
diff
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|
806 (strstr((const char *)video->glGetString(GL_EXTENSIONS), "GL_EXT_packed_pixels") || |
|
b42d80e73896
Fixed SDL_OPENGLBLIT with OpenGL API newer than 1.2
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|
807 (atof((const char *)video->glGetString(GL_VERSION)) >= 1.2f)) |
|
b42d80e73896
Fixed SDL_OPENGLBLIT with OpenGL API newer than 1.2
Sam Lantinga <slouken@libsdl.org>
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|
808 ) { |
| 0 | 809 video->is_32bit = 0; |
| 810 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 811 flags, | |
| 812 width, | |
| 813 height, | |
| 814 16, | |
| 815 31 << 11, | |
| 816 63 << 5, | |
| 817 31, | |
| 818 0 | |
| 819 ); | |
| 820 } | |
| 821 else | |
| 822 #endif /* OpenGL 1.2 */ | |
| 823 { | |
| 824 video->is_32bit = 1; | |
| 825 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 826 flags, | |
| 827 width, | |
| 828 height, | |
| 829 32, | |
| 830 #if SDL_BYTEORDER == SDL_LIL_ENDIAN | |
| 831 0x000000FF, | |
| 832 0x0000FF00, | |
| 833 0x00FF0000, | |
| 834 0xFF000000 | |
| 835 #else | |
| 836 0xFF000000, | |
| 837 0x00FF0000, | |
| 838 0x0000FF00, | |
| 839 0x000000FF | |
| 840 #endif | |
| 841 ); | |
| 842 } | |
| 843 if ( ! SDL_VideoSurface ) { | |
| 844 return(NULL); | |
| 845 } | |
| 846 SDL_VideoSurface->flags = mode->flags | SDL_OPENGLBLIT; | |
| 847 | |
| 848 /* Free the original video mode surface (is this safe?) */ | |
| 849 SDL_FreeSurface(mode); | |
| 850 | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
851 /* Set the surface completely opaque & white by default */ |
| 0 | 852 memset( SDL_VideoSurface->pixels, 255, SDL_VideoSurface->h * SDL_VideoSurface->pitch ); |
| 853 video->glGenTextures( 1, &video->texture ); | |
| 854 video->glBindTexture( GL_TEXTURE_2D, video->texture ); | |
| 855 video->glTexImage2D( | |
| 856 GL_TEXTURE_2D, | |
| 857 0, | |
| 858 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 859 256, | |
| 860 256, | |
| 861 0, | |
| 862 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 863 #ifdef GL_VERSION_1_2 | |
| 864 video->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 865 #else | |
| 866 GL_UNSIGNED_BYTE, | |
| 867 #endif | |
| 868 NULL); | |
| 869 | |
| 870 video->UpdateRects = SDL_GL_UpdateRectsLock; | |
| 871 #else | |
| 872 SDL_SetError("Somebody forgot to #define HAVE_OPENGL"); | |
| 873 return(NULL); | |
| 874 #endif | |
| 875 } | |
| 876 | |
| 877 /* Create a shadow surface if necessary */ | |
| 878 /* There are three conditions under which we create a shadow surface: | |
| 879 1. We need a particular bits-per-pixel that we didn't get. | |
| 880 2. We need a hardware palette and didn't get one. | |
| 881 3. We need a software surface and got a hardware surface. | |
| 882 */ | |
| 883 if ( !(SDL_VideoSurface->flags & SDL_OPENGL) && | |
| 884 ( | |
| 885 ( !(flags&SDL_ANYFORMAT) && | |
| 886 (SDL_VideoSurface->format->BitsPerPixel != bpp)) || | |
| 887 ( (flags&SDL_HWPALETTE) && | |
| 888 !(SDL_VideoSurface->flags&SDL_HWPALETTE)) || | |
| 889 /* If the surface is in hardware, video writes are visible | |
| 890 as soon as they are performed, so we need to buffer them | |
| 891 */ | |
| 892 ( ((flags&SDL_HWSURFACE) == SDL_SWSURFACE) && | |
|
580
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If a double-buffered surface was requested, and a plain hardware surface
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
893 (SDL_VideoSurface->flags&SDL_HWSURFACE)) || |
|
be6495850a62
If a double-buffered surface was requested, and a plain hardware surface
Sam Lantinga <slouken@libsdl.org>
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diff
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|
894 ( (flags&SDL_DOUBLEBUF) && |
|
be6495850a62
If a double-buffered surface was requested, and a plain hardware surface
Sam Lantinga <slouken@libsdl.org>
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567
diff
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|
895 (SDL_VideoSurface->flags&SDL_HWSURFACE) && |
|
be6495850a62
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Sam Lantinga <slouken@libsdl.org>
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diff
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|
896 !(SDL_VideoSurface->flags&SDL_DOUBLEBUF)) |
| 0 | 897 ) ) { |
| 898 SDL_CreateShadowSurface(bpp); | |
| 899 if ( SDL_ShadowSurface == NULL ) { | |
| 900 SDL_SetError("Couldn't create shadow surface"); | |
| 901 return(NULL); | |
| 902 } | |
| 903 SDL_PublicSurface = SDL_ShadowSurface; | |
| 904 } else { | |
| 905 SDL_PublicSurface = SDL_VideoSurface; | |
| 906 } | |
| 907 video->info.vfmt = SDL_VideoSurface->format; | |
| 908 | |
| 909 /* We're done! */ | |
| 910 return(SDL_PublicSurface); | |
| 911 } | |
| 912 | |
| 913 /* | |
| 914 * Convert a surface into the video pixel format. | |
| 915 */ | |
| 916 SDL_Surface * SDL_DisplayFormat (SDL_Surface *surface) | |
| 917 { | |
| 918 Uint32 flags; | |
| 919 | |
| 920 if ( ! SDL_PublicSurface ) { | |
| 921 SDL_SetError("No video mode has been set"); | |
| 922 return(NULL); | |
| 923 } | |
| 924 /* Set the flags appropriate for copying to display surface */ | |
|
313
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*** empty log message ***
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|
925 if (((SDL_PublicSurface->flags&SDL_HWSURFACE) == SDL_HWSURFACE) && current_video->info.blit_hw) |
|
306
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926 flags = SDL_HWSURFACE; |
|
3879bed3395c
Only put surfaces in video memory if there are accelerated blits
Sam Lantinga <slouken@libsdl.org>
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927 else |
|
3879bed3395c
Only put surfaces in video memory if there are accelerated blits
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|
928 flags = SDL_SWSURFACE; |
| 0 | 929 #ifdef AUTORLE_DISPLAYFORMAT |
| 930 flags |= (surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA)); | |
| 931 flags |= SDL_RLEACCELOK; | |
| 932 #else | |
| 933 flags |= surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA|SDL_RLEACCELOK); | |
| 934 #endif | |
| 935 return(SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags)); | |
| 936 } | |
| 937 | |
| 938 /* | |
| 939 * Convert a surface into a format that's suitable for blitting to | |
| 940 * the screen, but including an alpha channel. | |
| 941 */ | |
| 942 SDL_Surface *SDL_DisplayFormatAlpha(SDL_Surface *surface) | |
| 943 { | |
| 944 SDL_PixelFormat *vf; | |
| 945 SDL_PixelFormat *format; | |
| 946 SDL_Surface *converted; | |
| 947 Uint32 flags; | |
| 948 /* default to ARGB8888 */ | |
| 949 Uint32 amask = 0xff000000; | |
| 950 Uint32 rmask = 0x00ff0000; | |
| 951 Uint32 gmask = 0x0000ff00; | |
| 952 Uint32 bmask = 0x000000ff; | |
| 953 | |
| 954 if ( ! SDL_PublicSurface ) { | |
| 955 SDL_SetError("No video mode has been set"); | |
| 956 return(NULL); | |
| 957 } | |
| 958 vf = SDL_PublicSurface->format; | |
| 959 | |
| 960 switch(vf->BytesPerPixel) { | |
| 961 case 2: | |
| 962 /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}. | |
| 963 For anything else (like ARGB4444) it doesn't matter | |
| 964 since we have no special code for it anyway */ | |
| 965 if ( (vf->Rmask == 0x1f) && | |
| 966 (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) { | |
| 967 rmask = 0xff; | |
| 968 bmask = 0xff0000; | |
| 969 } | |
| 970 break; | |
| 971 | |
| 972 case 3: | |
| 973 case 4: | |
| 974 /* Keep the video format, as long as the high 8 bits are | |
| 975 unused or alpha */ | |
| 976 if ( (vf->Rmask == 0xff) && (vf->Bmask == 0xff0000) ) { | |
| 977 rmask = 0xff; | |
| 978 bmask = 0xff0000; | |
| 979 } | |
| 980 break; | |
| 981 | |
| 982 default: | |
| 983 /* We have no other optimised formats right now. When/if a new | |
| 984 optimised alpha format is written, add the converter here */ | |
| 985 break; | |
| 986 } | |
| 987 format = SDL_AllocFormat(32, rmask, gmask, bmask, amask); | |
| 988 flags = SDL_PublicSurface->flags & SDL_HWSURFACE; | |
| 989 flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); | |
| 990 converted = SDL_ConvertSurface(surface, format, flags); | |
| 991 SDL_FreeFormat(format); | |
| 992 return(converted); | |
| 993 } | |
| 994 | |
| 995 /* | |
| 996 * Update a specific portion of the physical screen | |
| 997 */ | |
| 998 void SDL_UpdateRect(SDL_Surface *screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h) | |
| 999 { | |
| 1000 if ( screen ) { | |
| 1001 SDL_Rect rect; | |
| 1002 | |
| 1003 /* Perform some checking */ | |
| 1004 if ( w == 0 ) | |
| 1005 w = screen->w; | |
| 1006 if ( h == 0 ) | |
| 1007 h = screen->h; | |
| 1008 if ( (int)(x+w) > screen->w ) | |
| 1009 return; | |
| 1010 if ( (int)(y+h) > screen->h ) | |
| 1011 return; | |
| 1012 | |
| 1013 /* Fill the rectangle */ | |
| 1014 rect.x = x; | |
| 1015 rect.y = y; | |
| 1016 rect.w = w; | |
| 1017 rect.h = h; | |
| 1018 SDL_UpdateRects(screen, 1, &rect); | |
| 1019 } | |
| 1020 } | |
| 1021 void SDL_UpdateRects (SDL_Surface *screen, int numrects, SDL_Rect *rects) | |
| 1022 { | |
| 1023 int i; | |
| 1024 SDL_VideoDevice *video = current_video; | |
| 1025 SDL_VideoDevice *this = current_video; | |
| 1026 | |
| 1027 if ( screen == SDL_ShadowSurface ) { | |
| 1028 /* Blit the shadow surface using saved mapping */ | |
|
488
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Sam Lantinga <slouken@libsdl.org>
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diff
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|
1029 SDL_Palette *pal = screen->format->palette; |
| 0 | 1030 SDL_Color *saved_colors = NULL; |
|
488
0a111805b53a
Fixed missing cursor after shadow buffer flip (thanks Jan!)
Sam Lantinga <slouken@libsdl.org>
parents:
460
diff
changeset
|
1031 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1032 /* simulated 8bpp, use correct physical palette */ |
| 1033 saved_colors = pal->colors; | |
| 1034 if ( video->gammacols ) { | |
| 1035 /* gamma-corrected palette */ | |
| 1036 pal->colors = video->gammacols; | |
| 1037 } else if ( video->physpal ) { | |
| 1038 /* physical palette different from logical */ | |
| 1039 pal->colors = video->physpal->colors; | |
| 1040 } | |
| 1041 } | |
| 1042 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { | |
| 1043 SDL_LockCursor(); | |
| 1044 SDL_DrawCursor(SDL_ShadowSurface); | |
| 1045 for ( i=0; i<numrects; ++i ) { | |
| 1046 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1047 SDL_VideoSurface, &rects[i]); | |
| 1048 } | |
| 1049 SDL_EraseCursor(SDL_ShadowSurface); | |
| 1050 SDL_UnlockCursor(); | |
| 1051 } else { | |
| 1052 for ( i=0; i<numrects; ++i ) { | |
| 1053 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1054 SDL_VideoSurface, &rects[i]); | |
| 1055 } | |
| 1056 } | |
|
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1057 if ( saved_colors ) { |
| 0 | 1058 pal->colors = saved_colors; |
|
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1059 } |
| 0 | 1060 |
| 1061 /* Fall through to video surface update */ | |
| 1062 screen = SDL_VideoSurface; | |
| 1063 } | |
| 1064 if ( screen == SDL_VideoSurface ) { | |
| 1065 /* Update the video surface */ | |
| 1066 if ( screen->offset ) { | |
| 1067 for ( i=0; i<numrects; ++i ) { | |
| 1068 rects[i].x += video->offset_x; | |
| 1069 rects[i].y += video->offset_y; | |
| 1070 } | |
| 1071 video->UpdateRects(this, numrects, rects); | |
| 1072 for ( i=0; i<numrects; ++i ) { | |
| 1073 rects[i].x -= video->offset_x; | |
| 1074 rects[i].y -= video->offset_y; | |
| 1075 } | |
| 1076 } else { | |
| 1077 video->UpdateRects(this, numrects, rects); | |
| 1078 } | |
| 1079 } | |
| 1080 } | |
| 1081 | |
| 1082 /* | |
| 1083 * Performs hardware double buffering, if possible, or a full update if not. | |
| 1084 */ | |
| 1085 int SDL_Flip(SDL_Surface *screen) | |
| 1086 { | |
| 1087 SDL_VideoDevice *video = current_video; | |
| 1088 /* Copy the shadow surface to the video surface */ | |
| 1089 if ( screen == SDL_ShadowSurface ) { | |
| 1090 SDL_Rect rect; | |
|
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1091 SDL_Palette *pal = screen->format->palette; |
| 0 | 1092 SDL_Color *saved_colors = NULL; |
|
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1093 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1094 /* simulated 8bpp, use correct physical palette */ |
| 1095 saved_colors = pal->colors; | |
| 1096 if ( video->gammacols ) { | |
| 1097 /* gamma-corrected palette */ | |
| 1098 pal->colors = video->gammacols; | |
| 1099 } else if ( video->physpal ) { | |
| 1100 /* physical palette different from logical */ | |
| 1101 pal->colors = video->physpal->colors; | |
| 1102 } | |
| 1103 } | |
| 1104 | |
| 1105 rect.x = 0; | |
| 1106 rect.y = 0; | |
| 1107 rect.w = screen->w; | |
| 1108 rect.h = screen->h; | |
|
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1109 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { |
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1110 SDL_LockCursor(); |
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1111 SDL_DrawCursor(SDL_ShadowSurface); |
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1112 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1113 SDL_VideoSurface, &rect); |
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1114 SDL_EraseCursor(SDL_ShadowSurface); |
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1115 SDL_UnlockCursor(); |
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1116 } else { |
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1117 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1118 SDL_VideoSurface, &rect); |
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1119 } |
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1120 if ( saved_colors ) { |
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1121 pal->colors = saved_colors; |
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1122 } |
| 0 | 1123 |
|
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1124 /* Fall through to video surface update */ |
| 0 | 1125 screen = SDL_VideoSurface; |
| 1126 } | |
| 1127 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 1128 SDL_VideoDevice *this = current_video; | |
| 1129 return(video->FlipHWSurface(this, SDL_VideoSurface)); | |
| 1130 } else { | |
| 1131 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1132 } | |
| 1133 return(0); | |
| 1134 } | |
| 1135 | |
| 1136 static void SetPalette_logical(SDL_Surface *screen, SDL_Color *colors, | |
| 1137 int firstcolor, int ncolors) | |
| 1138 { | |
|
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1139 SDL_Palette *pal = screen->format->palette; |
| 0 | 1140 SDL_Palette *vidpal; |
| 1141 | |
| 1142 if ( colors != (pal->colors + firstcolor) ) { | |
|
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1143 memcpy(pal->colors + firstcolor, colors, |
| 0 | 1144 ncolors * sizeof(*colors)); |
| 1145 } | |
| 1146 | |
| 1147 vidpal = SDL_VideoSurface->format->palette; | |
| 1148 if ( (screen == SDL_ShadowSurface) && vidpal ) { | |
|
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1149 /* |
| 0 | 1150 * This is a shadow surface, and the physical |
| 1151 * framebuffer is also indexed. Propagate the | |
| 1152 * changes to its logical palette so that | |
| 1153 * updates are always identity blits | |
| 1154 */ | |
| 1155 memcpy(vidpal->colors + firstcolor, colors, | |
| 1156 ncolors * sizeof(*colors)); | |
| 1157 } | |
| 1158 SDL_FormatChanged(screen); | |
| 1159 } | |
| 1160 | |
| 1161 static int SetPalette_physical(SDL_Surface *screen, | |
| 1162 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1163 { | |
| 1164 SDL_VideoDevice *video = current_video; | |
| 1165 int gotall = 1; | |
| 1166 | |
| 1167 if ( video->physpal ) { | |
| 1168 /* We need to copy the new colors, since we haven't | |
| 1169 * already done the copy in the logical set above. | |
| 1170 */ | |
| 1171 memcpy(video->physpal->colors + firstcolor, | |
| 1172 colors, ncolors * sizeof(*colors)); | |
| 1173 } | |
| 1174 if ( screen == SDL_ShadowSurface ) { | |
| 1175 if ( SDL_VideoSurface->flags & SDL_HWPALETTE ) { | |
| 1176 /* | |
| 1177 * The real screen is also indexed - set its physical | |
| 1178 * palette. The physical palette does not include the | |
| 1179 * gamma modification, we apply it directly instead, | |
| 1180 * but this only happens if we have hardware palette. | |
| 1181 */ | |
| 1182 screen = SDL_VideoSurface; | |
| 1183 } else { | |
| 1184 /* | |
| 1185 * The video surface is not indexed - invalidate any | |
| 1186 * active shadow-to-video blit mappings. | |
| 1187 */ | |
| 1188 if ( screen->map->dst == SDL_VideoSurface ) { | |
| 1189 SDL_InvalidateMap(screen->map); | |
| 1190 } | |
| 1191 if ( video->gamma ) { | |
| 1192 if( ! video->gammacols ) { | |
| 1193 SDL_Palette *pp = video->physpal; | |
| 1194 if(!pp) | |
| 1195 pp = screen->format->palette; | |
| 1196 video->gammacols = malloc(pp->ncolors | |
| 1197 * sizeof(SDL_Color)); | |
| 1198 SDL_ApplyGamma(video->gamma, | |
| 1199 pp->colors, | |
| 1200 video->gammacols, | |
| 1201 pp->ncolors); | |
| 1202 } else { | |
| 1203 SDL_ApplyGamma(video->gamma, colors, | |
| 1204 video->gammacols | |
| 1205 + firstcolor, | |
| 1206 ncolors); | |
| 1207 } | |
| 1208 } | |
| 1209 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1210 } | |
| 1211 } | |
| 1212 | |
| 1213 if ( screen == SDL_VideoSurface ) { | |
| 1214 SDL_Color gcolors[256]; | |
| 1215 | |
|
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1216 if ( video->gamma ) { |
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1217 SDL_ApplyGamma(video->gamma, colors, gcolors, ncolors); |
| 0 | 1218 colors = gcolors; |
| 1219 } | |
| 1220 gotall = video->SetColors(video, firstcolor, ncolors, colors); | |
| 1221 if ( ! gotall ) { | |
| 1222 /* The video flags shouldn't have SDL_HWPALETTE, and | |
| 1223 the video driver is responsible for copying back the | |
| 1224 correct colors into the video surface palette. | |
| 1225 */ | |
| 1226 ; | |
| 1227 } | |
| 1228 SDL_CursorPaletteChanged(); | |
| 1229 } | |
| 1230 return gotall; | |
| 1231 } | |
| 1232 | |
| 1233 /* | |
| 1234 * Set the physical and/or logical colormap of a surface: | |
| 1235 * Only the screen has a physical colormap. It determines what is actually | |
| 1236 * sent to the display. | |
| 1237 * The logical colormap is used to map blits to/from the surface. | |
| 1238 * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL | |
| 1239 * | |
| 1240 * Return nonzero if all colours were set as requested, or 0 otherwise. | |
| 1241 */ | |
| 1242 int SDL_SetPalette(SDL_Surface *screen, int which, | |
| 1243 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1244 { | |
|
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1245 SDL_Palette *pal; |
| 0 | 1246 int gotall; |
| 1247 int palsize; | |
| 1248 | |
| 34 | 1249 if ( ! current_video ) { |
| 1250 return 0; | |
| 1251 } | |
| 0 | 1252 if ( screen != SDL_PublicSurface ) { |
|
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1253 /* only screens have physical palettes */ |
|
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1254 which &= ~SDL_PHYSPAL; |
| 0 | 1255 } else if( (screen->flags & SDL_HWPALETTE) != SDL_HWPALETTE ) { |
|
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1256 /* hardware palettes required for split colormaps */ |
|
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1257 which |= SDL_PHYSPAL | SDL_LOGPAL; |
| 0 | 1258 } |
| 1259 | |
| 1260 /* Verify the parameters */ | |
| 1261 pal = screen->format->palette; | |
| 1262 if( !pal ) { | |
|
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1263 return 0; /* not a palettized surface */ |
| 0 | 1264 } |
| 1265 gotall = 1; | |
| 1266 palsize = 1 << screen->format->BitsPerPixel; | |
| 1267 if ( ncolors > (palsize - firstcolor) ) { | |
|
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|
1268 ncolors = (palsize - firstcolor); |
| 0 | 1269 gotall = 0; |
| 1270 } | |
| 1271 | |
| 1272 if ( which & SDL_LOGPAL ) { | |
| 1273 /* | |
| 1274 * Logical palette change: The actual screen isn't affected, | |
| 1275 * but the internal colormap is altered so that the | |
| 1276 * interpretation of the pixel values (for blits etc) is | |
| 1277 * changed. | |
| 1278 */ | |
|
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1279 SetPalette_logical(screen, colors, firstcolor, ncolors); |
| 0 | 1280 } |
| 1281 if ( which & SDL_PHYSPAL ) { | |
| 1282 SDL_VideoDevice *video = current_video; | |
|
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1283 /* |
| 0 | 1284 * Physical palette change: This doesn't affect the |
| 1285 * program's idea of what the screen looks like, but changes | |
| 1286 * its actual appearance. | |
| 1287 */ | |
|
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1288 if(!video) |
|
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1289 return gotall; /* video not yet initialized */ |
| 0 | 1290 if(!video->physpal && !(which & SDL_LOGPAL) ) { |
| 1291 /* Lazy physical palette allocation */ | |
|
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1292 int size; |
| 0 | 1293 SDL_Palette *pp = malloc(sizeof(*pp)); |
|
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1294 if ( !pp ) { |
|
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1295 return 0; |
|
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1296 } |
| 0 | 1297 current_video->physpal = pp; |
| 1298 pp->ncolors = pal->ncolors; | |
| 1299 size = pp->ncolors * sizeof(SDL_Color); | |
| 1300 pp->colors = malloc(size); | |
|
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1301 if ( !pp->colors ) { |
|
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1302 return 0; |
|
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1303 } |
| 0 | 1304 memcpy(pp->colors, pal->colors, size); |
| 1305 } | |
| 1306 if ( ! SetPalette_physical(screen, | |
| 1307 colors, firstcolor, ncolors) ) { | |
| 1308 gotall = 0; | |
| 1309 } | |
| 1310 } | |
| 1311 return gotall; | |
| 1312 } | |
| 1313 | |
| 1314 int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor, | |
| 1315 int ncolors) | |
| 1316 { | |
|
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1317 return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, |
| 0 | 1318 colors, firstcolor, ncolors); |
| 1319 } | |
| 1320 | |
| 1321 /* | |
| 1322 * Clean up the video subsystem | |
| 1323 */ | |
| 1324 void SDL_VideoQuit (void) | |
| 1325 { | |
| 1326 SDL_Surface *ready_to_go; | |
| 1327 | |
| 1328 if ( current_video ) { | |
| 1329 SDL_VideoDevice *video = current_video; | |
| 1330 SDL_VideoDevice *this = current_video; | |
| 1331 | |
| 1332 /* Halt event processing before doing anything else */ | |
| 1333 SDL_StopEventLoop(); | |
| 1334 | |
| 1335 /* Clean up allocated window manager items */ | |
| 1336 if ( SDL_PublicSurface ) { | |
| 1337 SDL_PublicSurface = NULL; | |
| 1338 } | |
| 1339 SDL_CursorQuit(); | |
| 1340 | |
| 1341 /* Just in case... */ | |
| 1342 SDL_WM_GrabInputOff(); | |
| 1343 | |
| 1344 /* Clean up the system video */ | |
| 1345 video->VideoQuit(this); | |
| 1346 | |
| 1347 /* Free any lingering surfaces */ | |
| 1348 ready_to_go = SDL_ShadowSurface; | |
| 1349 SDL_ShadowSurface = NULL; | |
| 1350 SDL_FreeSurface(ready_to_go); | |
| 1351 if ( SDL_VideoSurface != NULL ) { | |
| 1352 ready_to_go = SDL_VideoSurface; | |
| 1353 SDL_VideoSurface = NULL; | |
| 1354 SDL_FreeSurface(ready_to_go); | |
| 1355 } | |
| 1356 SDL_PublicSurface = NULL; | |
| 1357 | |
| 1358 /* Clean up miscellaneous memory */ | |
| 1359 if ( video->physpal ) { | |
| 1360 free(video->physpal->colors); | |
| 1361 free(video->physpal); | |
| 1362 video->physpal = NULL; | |
| 1363 } | |
| 1364 if ( video->gammacols ) { | |
| 1365 free(video->gammacols); | |
| 1366 video->gammacols = NULL; | |
| 1367 } | |
| 1368 if ( video->gamma ) { | |
| 1369 free(video->gamma); | |
| 1370 video->gamma = NULL; | |
| 1371 } | |
|
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1372 if ( video->wm_title != NULL ) { |
|
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1373 free(video->wm_title); |
|
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1374 video->wm_title = NULL; |
| 0 | 1375 } |
|
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1376 if ( video->wm_icon != NULL ) { |
|
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1377 free(video->wm_icon); |
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1378 video->wm_icon = NULL; |
| 0 | 1379 } |
| 1380 | |
| 1381 /* Finish cleaning up video subsystem */ | |
| 1382 video->free(this); | |
| 1383 current_video = NULL; | |
| 1384 } | |
| 1385 return; | |
| 1386 } | |
| 1387 | |
| 1388 /* Load the GL driver library */ | |
| 1389 int SDL_GL_LoadLibrary(const char *path) | |
| 1390 { | |
| 1391 SDL_VideoDevice *video = current_video; | |
| 1392 SDL_VideoDevice *this = current_video; | |
| 1393 int retval; | |
| 1394 | |
| 1395 retval = -1; | |
|
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1396 if ( video == NULL ) { |
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1397 SDL_SetError("Video subsystem has not been initialized"); |
| 0 | 1398 } else { |
|
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parents:
371
diff
changeset
|
1399 if ( video->GL_LoadLibrary ) { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
Ryan C. Gordon <icculus@icculus.org>
parents:
371
diff
changeset
|
1400 retval = video->GL_LoadLibrary(this, path); |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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parents:
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diff
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|
1401 } else { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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diff
changeset
|
1402 SDL_SetError("No dynamic GL support in video driver"); |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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parents:
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|
1403 } |
| 0 | 1404 } |
| 1405 return(retval); | |
| 1406 } | |
| 1407 | |
| 1408 void *SDL_GL_GetProcAddress(const char* proc) | |
| 1409 { | |
| 1410 SDL_VideoDevice *video = current_video; | |
| 1411 SDL_VideoDevice *this = current_video; | |
| 1412 void *func; | |
| 1413 | |
| 1414 func = NULL; | |
| 1415 if ( video->GL_GetProcAddress ) { | |
| 1416 if ( video->gl_config.driver_loaded ) { | |
| 1417 func = video->GL_GetProcAddress(this, proc); | |
| 1418 } else { | |
| 1419 SDL_SetError("No GL driver has been loaded"); | |
| 1420 } | |
| 1421 } else { | |
| 1422 SDL_SetError("No dynamic GL support in video driver"); | |
| 1423 } | |
| 1424 return func; | |
| 1425 } | |
| 1426 | |
| 1427 /* Set the specified GL attribute for setting up a GL video mode */ | |
| 1428 int SDL_GL_SetAttribute( SDL_GLattr attr, int value ) | |
| 1429 { | |
| 1430 int retval; | |
| 1431 SDL_VideoDevice *video = current_video; | |
| 1432 | |
| 1433 retval = 0; | |
| 1434 switch (attr) { | |
| 1435 case SDL_GL_RED_SIZE: | |
| 1436 video->gl_config.red_size = value; | |
| 1437 break; | |
| 1438 case SDL_GL_GREEN_SIZE: | |
| 1439 video->gl_config.green_size = value; | |
| 1440 break; | |
| 1441 case SDL_GL_BLUE_SIZE: | |
| 1442 video->gl_config.blue_size = value; | |
| 1443 break; | |
| 1444 case SDL_GL_ALPHA_SIZE: | |
| 1445 video->gl_config.alpha_size = value; | |
| 1446 break; | |
| 1447 case SDL_GL_DOUBLEBUFFER: | |
| 1448 video->gl_config.double_buffer = value; | |
| 1449 break; | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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656
diff
changeset
|
1450 case SDL_GL_BUFFER_SIZE: |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1451 video->gl_config.buffer_size = value; |
| 0 | 1452 break; |
| 1453 case SDL_GL_DEPTH_SIZE: | |
| 1454 video->gl_config.depth_size = value; | |
| 1455 break; | |
| 1456 case SDL_GL_STENCIL_SIZE: | |
| 1457 video->gl_config.stencil_size = value; | |
| 1458 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1459 case SDL_GL_ACCUM_RED_SIZE: |
| 0 | 1460 video->gl_config.accum_red_size = value; |
| 1461 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1462 case SDL_GL_ACCUM_GREEN_SIZE: |
| 0 | 1463 video->gl_config.accum_green_size = value; |
| 1464 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1465 case SDL_GL_ACCUM_BLUE_SIZE: |
| 0 | 1466 video->gl_config.accum_blue_size = value; |
| 1467 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1468 case SDL_GL_ACCUM_ALPHA_SIZE: |
| 0 | 1469 video->gl_config.accum_alpha_size = value; |
| 1470 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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433
diff
changeset
|
1471 case SDL_GL_STEREO: |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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parents:
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diff
changeset
|
1472 video->gl_config.stereo = value; |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1473 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
|
1474 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:
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diff
changeset
|
1475 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
|
1476 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
|
1477 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:
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diff
changeset
|
1478 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
|
1479 break; |
| 0 | 1480 default: |
| 1481 SDL_SetError("Unknown OpenGL attribute"); | |
| 1482 retval = -1; | |
| 1483 break; | |
| 1484 } | |
| 1485 return(retval); | |
| 1486 } | |
| 1487 | |
| 1488 /* Retrieve an attribute value from the windowing system. */ | |
| 1489 int SDL_GL_GetAttribute(SDL_GLattr attr, int* value) | |
| 1490 { | |
| 1491 int retval = -1; | |
| 1492 SDL_VideoDevice* video = current_video; | |
| 1493 SDL_VideoDevice* this = current_video; | |
| 1494 | |
| 1495 if ( video->GL_GetAttribute ) { | |
| 1496 retval = this->GL_GetAttribute(this, attr, value); | |
|
11
7b94b6379341
*** empty log message ***
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parents:
7
diff
changeset
|
1497 } else { |
|
7b94b6379341
*** empty log message ***
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parents:
7
diff
changeset
|
1498 *value = 0; |
|
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
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diff
changeset
|
1499 SDL_SetError("GL_GetAttribute not supported"); |
| 0 | 1500 } |
| 1501 return retval; | |
| 1502 } | |
| 1503 | |
| 1504 /* Perform a GL buffer swap on the current GL context */ | |
| 1505 void SDL_GL_SwapBuffers(void) | |
| 1506 { | |
| 1507 SDL_VideoDevice *video = current_video; | |
| 1508 SDL_VideoDevice *this = current_video; | |
| 1509 | |
| 1510 if ( video->screen->flags & SDL_OPENGL ) { | |
|
266
c6abdda2f666
Added QNX cleanups by Mike Gorchak (thanks!)
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
1511 video->GL_SwapBuffers(this); |
|
c6abdda2f666
Added QNX cleanups by Mike Gorchak (thanks!)
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parents:
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diff
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|
1512 } else { |
|
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Added QNX cleanups by Mike Gorchak (thanks!)
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|
1513 SDL_SetError("OpenGL video mode has not been set"); |
| 0 | 1514 } |
| 1515 } | |
| 1516 | |
| 1517 /* Update rects with locking */ | |
| 1518 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect *rects) | |
| 1519 { | |
| 1520 SDL_GL_Lock(); | |
| 1521 SDL_GL_UpdateRects(numrects, rects); | |
| 1522 SDL_GL_Unlock(); | |
| 1523 } | |
| 1524 | |
| 1525 /* Update rects without state setting and changing (the caller is responsible for it) */ | |
| 1526 void SDL_GL_UpdateRects(int numrects, SDL_Rect *rects) | |
| 1527 { | |
| 1528 #ifdef HAVE_OPENGL | |
| 1529 SDL_VideoDevice *this = current_video; | |
| 1530 SDL_Rect update, tmp; | |
| 1531 int x, y, i; | |
| 1532 | |
| 1533 for ( i = 0; i < numrects; i++ ) | |
| 1534 { | |
| 1535 tmp.y = rects[i].y; | |
| 1536 tmp.h = rects[i].h; | |
| 1537 for ( y = 0; y <= rects[i].h / 256; y++ ) | |
| 1538 { | |
| 1539 tmp.x = rects[i].x; | |
| 1540 tmp.w = rects[i].w; | |
| 1541 for ( x = 0; x <= rects[i].w / 256; x++ ) | |
| 1542 { | |
| 1543 update.x = tmp.x; | |
| 1544 update.y = tmp.y; | |
| 1545 update.w = tmp.w; | |
| 1546 update.h = tmp.h; | |
| 1547 | |
| 1548 if ( update.w > 256 ) | |
| 1549 update.w = 256; | |
| 1550 | |
| 1551 if ( update.h > 256 ) | |
| 1552 update.h = 256; | |
| 1553 | |
| 1554 this->glFlush(); | |
| 1555 this->glTexSubImage2D( | |
| 1556 GL_TEXTURE_2D, | |
| 1557 0, | |
| 1558 0, | |
| 1559 0, | |
| 1560 update.w, | |
| 1561 update.h, | |
| 1562 this->is_32bit? GL_RGBA : GL_RGB, | |
| 1563 #ifdef GL_VERSION_1_2 | |
| 1564 this->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 1565 #else | |
| 1566 GL_UNSIGNED_BYTE, | |
| 1567 #endif | |
| 1568 (Uint8 *)this->screen->pixels + | |
| 1569 this->screen->format->BytesPerPixel * update.x + | |
| 1570 update.y * this->screen->pitch ); | |
| 1571 | |
| 1572 this->glFlush(); | |
| 1573 /* | |
| 1574 * Note the parens around the function name: | |
| 1575 * This is because some OpenGL implementations define glTexCoord etc | |
| 1576 * as macros, and we don't want them expanded here. | |
| 1577 */ | |
| 1578 this->glBegin(GL_TRIANGLE_STRIP); | |
| 1579 (this->glTexCoord2f)( 0.0, 0.0 ); | |
| 1580 (this->glVertex2i)( update.x, update.y ); | |
| 1581 (this->glTexCoord2f)( (float)(update.w / 256.0), 0.0 ); | |
| 1582 (this->glVertex2i)( update.x + update.w, update.y ); | |
| 1583 (this->glTexCoord2f)( 0.0, (float)(update.h / 256.0) ); | |
| 1584 (this->glVertex2i)( update.x, update.y + update.h ); | |
| 1585 (this->glTexCoord2f)( (float)(update.w / 256.0), (float)(update.h / 256.0) ); | |
| 1586 (this->glVertex2i)( update.x + update.w , update.y + update.h ); | |
| 1587 this->glEnd(); | |
| 1588 | |
| 1589 tmp.x += 256; | |
| 1590 tmp.w -= 256; | |
| 1591 } | |
| 1592 tmp.y += 256; | |
| 1593 tmp.h -= 256; | |
| 1594 } | |
| 1595 } | |
| 1596 #endif | |
| 1597 } | |
| 1598 | |
| 1599 /* Lock == save current state */ | |
| 1600 void SDL_GL_Lock() | |
| 1601 { | |
| 1602 #ifdef HAVE_OPENGL | |
| 1603 lock_count--; | |
| 1604 if (lock_count==-1) | |
| 1605 { | |
| 1606 SDL_VideoDevice *this = current_video; | |
| 1607 | |
| 1608 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
|
1609 #ifdef GL_CLIENT_PIXEL_STORE_BIT |
| 0 | 1610 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
|
1611 #endif |
| 0 | 1612 |
| 1613 this->glEnable(GL_TEXTURE_2D); | |
| 1614 this->glEnable(GL_BLEND); | |
| 1615 this->glDisable(GL_FOG); | |
| 1616 this->glDisable(GL_ALPHA_TEST); | |
| 1617 this->glDisable(GL_DEPTH_TEST); | |
| 1618 this->glDisable(GL_SCISSOR_TEST); | |
| 1619 this->glDisable(GL_STENCIL_TEST); | |
| 1620 this->glDisable(GL_CULL_FACE); | |
| 1621 | |
| 1622 this->glBindTexture( GL_TEXTURE_2D, this->texture ); | |
| 1623 this->glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); | |
| 1624 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); | |
| 1625 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); | |
| 1626 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); | |
| 1627 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT ); | |
| 1628 | |
| 1629 this->glPixelStorei( GL_UNPACK_ROW_LENGTH, this->screen->pitch / this->screen->format->BytesPerPixel ); | |
| 1630 this->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
| 1631 (this->glColor4f)(1.0, 1.0, 1.0, 1.0); /* Solaris workaround */ | |
| 1632 | |
| 1633 this->glViewport(0, 0, this->screen->w, this->screen->h); | |
| 1634 this->glMatrixMode(GL_PROJECTION); | |
| 1635 this->glPushMatrix(); | |
| 1636 this->glLoadIdentity(); | |
| 1637 | |
| 1638 this->glOrtho(0.0, (GLdouble) this->screen->w, (GLdouble) this->screen->h, 0.0, 0.0, 1.0); | |
| 1639 | |
| 1640 this->glMatrixMode(GL_MODELVIEW); | |
| 1641 this->glPushMatrix(); | |
| 1642 this->glLoadIdentity(); | |
| 1643 } | |
| 1644 #endif | |
| 1645 } | |
| 1646 | |
| 1647 /* Unlock == restore saved state */ | |
| 1648 void SDL_GL_Unlock() | |
| 1649 { | |
| 1650 #ifdef HAVE_OPENGL | |
| 1651 lock_count++; | |
| 1652 if (lock_count==0) | |
| 1653 { | |
| 1654 SDL_VideoDevice *this = current_video; | |
| 1655 | |
| 1656 this->glPopMatrix(); | |
| 1657 this->glMatrixMode(GL_PROJECTION); | |
| 1658 this->glPopMatrix(); | |
| 1659 | |
| 1660 this->glPopClientAttrib(); | |
| 1661 this->glPopAttrib(); | |
| 1662 } | |
| 1663 #endif | |
| 1664 } | |
| 1665 | |
| 1666 /* | |
| 1667 * Sets/Gets the title and icon text of the display window, if any. | |
| 1668 */ | |
| 1669 void SDL_WM_SetCaption (const char *title, const char *icon) | |
| 1670 { | |
| 1671 SDL_VideoDevice *video = current_video; | |
| 1672 SDL_VideoDevice *this = current_video; | |
| 1673 | |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1674 if ( video ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1675 if ( title ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1676 if ( video->wm_title ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1677 free(video->wm_title); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1678 } |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1679 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
|
1680 if ( video->wm_title != NULL ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1681 strcpy(video->wm_title, title); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1682 } |
| 0 | 1683 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1684 if ( icon ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1685 if ( video->wm_icon ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1686 free(video->wm_icon); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1687 } |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1688 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
|
1689 if ( video->wm_icon != NULL ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1690 strcpy(video->wm_icon, icon); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1691 } |
| 0 | 1692 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1693 if ( (title || icon) && (video->SetCaption != NULL) ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1694 video->SetCaption(this, video->wm_title,video->wm_icon); |
| 0 | 1695 } |
| 1696 } | |
| 1697 } | |
| 1698 void SDL_WM_GetCaption (char **title, char **icon) | |
| 1699 { | |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1700 SDL_VideoDevice *video = current_video; |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1701 |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1702 if ( video ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1703 if ( title ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1704 *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
|
1705 } |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1706 if ( icon ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
changeset
|
1707 *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
|
1708 } |
| 0 | 1709 } |
| 1710 } | |
| 1711 | |
|
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1712 /* Utility function used by SDL_WM_SetIcon(); |
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1713 * flags & 1 for color key, flags & 2 for alpha channel. */ |
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1714 static void CreateMaskFromColorKeyOrAlpha(SDL_Surface *icon, Uint8 *mask, int flags) |
| 0 | 1715 { |
| 1716 int x, y; | |
| 1717 Uint32 colorkey; | |
| 1718 #define SET_MASKBIT(icon, x, y, mask) \ | |
| 1719 mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8))) | |
| 1720 | |
| 1721 colorkey = icon->format->colorkey; | |
| 1722 switch (icon->format->BytesPerPixel) { | |
| 1723 case 1: { Uint8 *pixels; | |
| 1724 for ( y=0; y<icon->h; ++y ) { | |
| 1725 pixels = (Uint8 *)icon->pixels + y*icon->pitch; | |
| 1726 for ( x=0; x<icon->w; ++x ) { | |
| 1727 if ( *pixels++ == colorkey ) { | |
| 1728 SET_MASKBIT(icon, x, y, mask); | |
| 1729 } | |
| 1730 } | |
| 1731 } | |
| 1732 } | |
| 1733 break; | |
| 1734 | |
| 1735 case 2: { Uint16 *pixels; | |
| 1736 for ( y=0; y<icon->h; ++y ) { | |
| 1737 pixels = (Uint16 *)icon->pixels + | |
| 1738 y*icon->pitch/2; | |
| 1739 for ( x=0; x<icon->w; ++x ) { | |
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1740 if ( (flags & 1) && *pixels == colorkey ) { |
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1741 SET_MASKBIT(icon, x, y, mask); |
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1742 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1743 SET_MASKBIT(icon, x, y, mask); |
| 1744 } | |
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1745 pixels++; |
| 0 | 1746 } |
| 1747 } | |
| 1748 } | |
| 1749 break; | |
| 1750 | |
| 1751 case 4: { Uint32 *pixels; | |
| 1752 for ( y=0; y<icon->h; ++y ) { | |
| 1753 pixels = (Uint32 *)icon->pixels + | |
| 1754 y*icon->pitch/4; | |
| 1755 for ( x=0; x<icon->w; ++x ) { | |
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1756 if ( (flags & 1) && *pixels == colorkey ) { |
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1757 SET_MASKBIT(icon, x, y, mask); |
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1758 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1759 SET_MASKBIT(icon, x, y, mask); |
| 1760 } | |
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1761 pixels++; |
| 0 | 1762 } |
| 1763 } | |
| 1764 } | |
| 1765 break; | |
| 1766 } | |
| 1767 } | |
| 1768 | |
| 1769 /* | |
| 1770 * Sets the window manager icon for the display window. | |
| 1771 */ | |
| 1772 void SDL_WM_SetIcon (SDL_Surface *icon, Uint8 *mask) | |
| 1773 { | |
| 1774 SDL_VideoDevice *video = current_video; | |
| 1775 SDL_VideoDevice *this = current_video; | |
| 1776 | |
| 1777 if ( icon && video->SetIcon ) { | |
| 1778 /* Generate a mask if necessary, and create the icon! */ | |
| 1779 if ( mask == NULL ) { | |
| 1780 int mask_len = icon->h*(icon->w+7)/8; | |
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1781 int flags = 0; |
| 0 | 1782 mask = (Uint8 *)malloc(mask_len); |
| 1783 if ( mask == NULL ) { | |
| 1784 return; | |
| 1785 } | |
| 1786 memset(mask, ~0, mask_len); | |
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1787 if ( icon->flags & SDL_SRCCOLORKEY ) flags |= 1; |
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1788 if ( icon->flags & SDL_SRCALPHA ) flags |= 2; |
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1789 if( flags ) { |
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1790 CreateMaskFromColorKeyOrAlpha(icon, mask, flags); |
| 0 | 1791 } |
| 1792 video->SetIcon(video, icon, mask); | |
| 1793 free(mask); | |
| 1794 } else { | |
| 1795 video->SetIcon(this, icon, mask); | |
| 1796 } | |
| 1797 } | |
| 1798 } | |
| 1799 | |
| 1800 /* | |
| 1801 * Grab or ungrab the keyboard and mouse input. | |
| 1802 * This function returns the final grab mode after calling the | |
| 1803 * driver dependent function. | |
| 1804 */ | |
| 1805 static SDL_GrabMode SDL_WM_GrabInputRaw(SDL_GrabMode mode) | |
| 1806 { | |
| 1807 SDL_VideoDevice *video = current_video; | |
| 1808 SDL_VideoDevice *this = current_video; | |
| 1809 | |
| 1810 /* Only do something if we have support for grabs */ | |
| 1811 if ( video->GrabInput == NULL ) { | |
| 1812 return(video->input_grab); | |
| 1813 } | |
| 1814 | |
| 1815 /* If the final grab mode if off, only then do we actually grab */ | |
| 1816 #ifdef DEBUG_GRAB | |
| 1817 printf("SDL_WM_GrabInputRaw(%d) ... ", mode); | |
| 1818 #endif | |
| 1819 if ( mode == SDL_GRAB_OFF ) { | |
| 1820 if ( video->input_grab != SDL_GRAB_OFF ) { | |
| 1821 mode = video->GrabInput(this, mode); | |
| 1822 } | |
| 1823 } else { | |
| 1824 if ( video->input_grab == SDL_GRAB_OFF ) { | |
| 1825 mode = video->GrabInput(this, mode); | |
| 1826 } | |
| 1827 } | |
| 1828 if ( mode != video->input_grab ) { | |
| 1829 video->input_grab = mode; | |
| 1830 if ( video->CheckMouseMode ) { | |
| 1831 video->CheckMouseMode(this); | |
| 1832 } | |
| 1833 } | |
| 1834 #ifdef DEBUG_GRAB | |
| 1835 printf("Final mode %d\n", video->input_grab); | |
| 1836 #endif | |
| 1837 | |
| 1838 /* Return the final grab state */ | |
| 1839 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1840 mode -= SDL_GRAB_FULLSCREEN; | |
| 1841 } | |
| 1842 return(mode); | |
| 1843 } | |
| 1844 SDL_GrabMode SDL_WM_GrabInput(SDL_GrabMode mode) | |
| 1845 { | |
| 1846 SDL_VideoDevice *video = current_video; | |
| 1847 | |
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1848 /* If the video isn't initialized yet, we can't do anything */ |
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1849 if ( ! video ) { |
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1850 return SDL_GRAB_OFF; |
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1851 } |
| 0 | 1852 |
| 1853 /* Return the current mode on query */ | |
| 1854 if ( mode == SDL_GRAB_QUERY ) { | |
| 1855 mode = video->input_grab; | |
| 1856 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1857 mode -= SDL_GRAB_FULLSCREEN; | |
| 1858 } | |
| 1859 return(mode); | |
| 1860 } | |
| 1861 | |
| 1862 #ifdef DEBUG_GRAB | |
| 1863 printf("SDL_WM_GrabInput(%d) ... ", mode); | |
| 1864 #endif | |
| 1865 /* If the video surface is fullscreen, we always grab */ | |
| 1866 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1867 mode -= SDL_GRAB_FULLSCREEN; | |
| 1868 } | |
| 1869 if ( SDL_VideoSurface && (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { | |
| 1870 mode += SDL_GRAB_FULLSCREEN; | |
| 1871 } | |
| 1872 return(SDL_WM_GrabInputRaw(mode)); | |
| 1873 } | |
| 1874 static SDL_GrabMode SDL_WM_GrabInputOff(void) | |
| 1875 { | |
| 1876 SDL_GrabMode mode; | |
| 1877 | |
| 1878 /* First query the current grab state */ | |
| 1879 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 1880 | |
| 1881 /* Now explicitly turn off input grab */ | |
| 1882 SDL_WM_GrabInputRaw(SDL_GRAB_OFF); | |
| 1883 | |
| 1884 /* Return the old state */ | |
| 1885 return(mode); | |
| 1886 } | |
| 1887 | |
| 1888 /* | |
| 1889 * Iconify the window in window managed environments. | |
| 1890 * A successful iconification will result in an SDL_APPACTIVE loss event. | |
| 1891 */ | |
| 1892 int SDL_WM_IconifyWindow(void) | |
| 1893 { | |
| 1894 SDL_VideoDevice *video = current_video; | |
| 1895 SDL_VideoDevice *this = current_video; | |
| 1896 int retval; | |
| 1897 | |
| 1898 retval = 0; | |
| 1899 if ( video->IconifyWindow ) { | |
| 1900 retval = video->IconifyWindow(this); | |
| 1901 } | |
| 1902 return(retval); | |
| 1903 } | |
| 1904 | |
| 1905 /* | |
| 1906 * Toggle fullscreen mode | |
| 1907 */ | |
| 1908 int SDL_WM_ToggleFullScreen(SDL_Surface *surface) | |
| 1909 { | |
| 1910 SDL_VideoDevice *video = current_video; | |
| 1911 SDL_VideoDevice *this = current_video; | |
| 1912 int toggled; | |
| 1913 | |
| 1914 toggled = 0; | |
| 1915 if ( SDL_PublicSurface && (surface == SDL_PublicSurface) && | |
| 1916 video->ToggleFullScreen ) { | |
| 1917 if ( surface->flags & SDL_FULLSCREEN ) { | |
| 1918 toggled = video->ToggleFullScreen(this, 0); | |
| 1919 if ( toggled ) { | |
| 1920 SDL_VideoSurface->flags &= ~SDL_FULLSCREEN; | |
| 1921 SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; | |
| 1922 } | |
| 1923 } else { | |
| 1924 toggled = video->ToggleFullScreen(this, 1); | |
| 1925 if ( toggled ) { | |
| 1926 SDL_VideoSurface->flags |= SDL_FULLSCREEN; | |
| 1927 SDL_PublicSurface->flags |= SDL_FULLSCREEN; | |
| 1928 } | |
| 1929 } | |
| 1930 /* Double-check the grab state inside SDL_WM_GrabInput() */ | |
| 1931 if ( toggled ) { | |
| 1932 SDL_WM_GrabInput(video->input_grab); | |
| 1933 } | |
| 1934 } | |
| 1935 return(toggled); | |
| 1936 } | |
| 1937 | |
| 1938 /* | |
| 1939 * Get some platform dependent window manager information | |
| 1940 */ | |
| 1941 int SDL_GetWMInfo (SDL_SysWMinfo *info) | |
| 1942 { | |
| 1943 SDL_VideoDevice *video = current_video; | |
| 1944 SDL_VideoDevice *this = current_video; | |
| 1945 | |
| 1946 if ( video && video->GetWMInfo ) { | |
| 1947 return(video->GetWMInfo(this, info)); | |
| 1948 } else { | |
| 1949 return(0); | |
| 1950 } | |
| 1951 } |