Mercurial > sdl-ios-xcode
annotate src/video/SDL_video.c @ 910:4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
From: "Mike Gorchak"
Subject: QNX 6.3 fixes for SDL
Sam, I've added new OpenGL framework for SDL, which appeared in the new QNX version - 6.3. I've leave compatibility with previous QNX versions. And I've moved all GL specific functions to the separate module, like it done for the other platforms.
SDL is now ready for the QNX 6.3 :)
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 18 Jul 2004 19:46:38 +0000 |
| parents | 50f5a29c6a17 |
| children | 46916168361d |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* The high-level video driver subsystem */ | |
| 29 | |
| 30 #include <stdio.h> | |
| 31 #include <stdlib.h> | |
| 32 #include <string.h> | |
| 33 | |
| 34 #include "SDL.h" | |
| 35 #include "SDL_error.h" | |
| 36 #include "SDL_video.h" | |
| 37 #include "SDL_events.h" | |
| 38 #include "SDL_mutex.h" | |
| 39 #include "SDL_sysvideo.h" | |
| 40 #include "SDL_sysevents.h" | |
| 41 #include "SDL_blit.h" | |
| 42 #include "SDL_pixels_c.h" | |
| 43 #include "SDL_events_c.h" | |
| 44 #include "SDL_cursor_c.h" | |
| 45 | |
| 46 /* Available video drivers */ | |
| 47 static VideoBootStrap *bootstrap[] = { | |
| 48 #ifdef ENABLE_X11 | |
| 49 &X11_bootstrap, | |
| 50 #endif | |
| 51 #ifdef ENABLE_DGA | |
| 52 &DGA_bootstrap, | |
| 53 #endif | |
|
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54 #ifdef ENABLE_NANOX |
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55 &NX_bootstrap, |
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56 #endif |
| 567 | 57 #ifdef ENABLE_QTOPIA |
| 58 &Qtopia_bootstrap, | |
| 59 #endif | |
| 0 | 60 #ifdef ENABLE_FBCON |
| 61 &FBCON_bootstrap, | |
| 62 #endif | |
|
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63 #ifdef ENABLE_DIRECTFB |
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64 &DirectFB_bootstrap, |
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65 #endif |
| 0 | 66 #ifdef ENABLE_PS2GS |
| 67 &PS2GS_bootstrap, | |
| 68 #endif | |
| 69 #ifdef ENABLE_GGI | |
| 70 &GGI_bootstrap, | |
| 71 #endif | |
|
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72 #ifdef ENABLE_VGL |
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73 &VGL_bootstrap, |
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74 #endif |
| 0 | 75 #ifdef ENABLE_SVGALIB |
| 76 &SVGALIB_bootstrap, | |
| 77 #endif | |
| 78 #ifdef ENABLE_AALIB | |
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79 &AALIB_bootstrap, |
| 0 | 80 #endif |
| 81 #ifdef ENABLE_DIRECTX | |
| 82 &DIRECTX_bootstrap, | |
| 83 #endif | |
| 84 #ifdef ENABLE_WINDIB | |
| 85 &WINDIB_bootstrap, | |
| 86 #endif | |
| 87 #ifdef ENABLE_BWINDOW | |
| 88 &BWINDOW_bootstrap, | |
| 89 #endif | |
| 90 #ifdef ENABLE_TOOLBOX | |
| 91 &TOOLBOX_bootstrap, | |
| 92 #endif | |
| 93 #ifdef ENABLE_DRAWSPROCKET | |
| 94 &DSp_bootstrap, | |
| 95 #endif | |
|
47
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96 #ifdef ENABLE_QUARTZ |
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97 &QZ_bootstrap, |
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98 #endif |
| 0 | 99 #ifdef ENABLE_CYBERGRAPHICS |
| 100 &CGX_bootstrap, | |
| 101 #endif | |
|
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102 #ifdef ENABLE_PHOTON |
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103 &ph_bootstrap, |
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104 #endif |
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105 #ifdef ENABLE_EPOC |
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106 &EPOC_bootstrap, |
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107 #endif |
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108 #ifdef ENABLE_XBIOS |
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109 &XBIOS_bootstrap, |
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110 #endif |
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111 #ifdef ENABLE_GEM |
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112 &GEM_bootstrap, |
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113 #endif |
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114 #ifdef ENABLE_PICOGUI |
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115 &PG_bootstrap, |
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116 #endif |
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117 #ifdef ENABLE_DC |
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118 &DC_bootstrap, |
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119 #endif |
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120 #ifdef ENABLE_RISCOS |
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121 &RISCOS_bootstrap, |
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122 #endif |
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123 #ifdef ENABLE_DUMMYVIDEO |
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124 &DUMMY_bootstrap, |
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125 #endif |
| 0 | 126 NULL |
| 127 }; | |
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128 |
| 0 | 129 SDL_VideoDevice *current_video = NULL; |
| 130 | |
| 131 /* Various local functions */ | |
| 132 int SDL_VideoInit(const char *driver_name, Uint32 flags); | |
| 133 void SDL_VideoQuit(void); | |
| 134 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect* rects); | |
| 135 | |
| 136 static SDL_GrabMode SDL_WM_GrabInputOff(void); | |
| 137 #ifdef HAVE_OPENGL | |
| 138 static int lock_count = 0; | |
| 139 #endif | |
| 140 | |
| 141 | |
| 142 /* | |
| 143 * Initialize the video and event subsystems -- determine native pixel format | |
| 144 */ | |
| 145 int SDL_VideoInit (const char *driver_name, Uint32 flags) | |
| 146 { | |
| 147 SDL_VideoDevice *video; | |
| 148 int index; | |
| 149 int i; | |
| 150 SDL_PixelFormat vformat; | |
| 151 Uint32 video_flags; | |
| 152 | |
| 153 /* Toggle the event thread flags, based on OS requirements */ | |
| 154 #if defined(MUST_THREAD_EVENTS) | |
| 155 flags |= SDL_INIT_EVENTTHREAD; | |
| 156 #elif defined(CANT_THREAD_EVENTS) | |
| 157 if ( (flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD ) { | |
| 158 SDL_SetError("OS doesn't support threaded events"); | |
| 159 return(-1); | |
| 160 } | |
| 161 #endif | |
| 162 | |
| 163 /* Check to make sure we don't overwrite 'current_video' */ | |
| 164 if ( current_video != NULL ) { | |
| 165 SDL_VideoQuit(); | |
| 166 } | |
| 167 | |
| 168 /* Select the proper video driver */ | |
| 169 index = 0; | |
| 170 video = NULL; | |
| 171 if ( driver_name != NULL ) { | |
| 172 #if 0 /* This will be replaced with a better driver selection API */ | |
| 173 if ( strrchr(driver_name, ':') != NULL ) { | |
| 174 index = atoi(strrchr(driver_name, ':')+1); | |
| 175 } | |
| 176 #endif | |
| 177 for ( i=0; bootstrap[i]; ++i ) { | |
| 178 if ( strncmp(bootstrap[i]->name, driver_name, | |
| 179 strlen(bootstrap[i]->name)) == 0 ) { | |
| 180 if ( bootstrap[i]->available() ) { | |
| 181 video = bootstrap[i]->create(index); | |
| 182 break; | |
| 183 } | |
| 184 } | |
| 185 } | |
| 186 } else { | |
| 187 for ( i=0; bootstrap[i]; ++i ) { | |
| 188 if ( bootstrap[i]->available() ) { | |
| 189 video = bootstrap[i]->create(index); | |
| 190 if ( video != NULL ) { | |
| 191 break; | |
| 192 } | |
| 193 } | |
| 194 } | |
| 195 } | |
| 196 if ( video == NULL ) { | |
| 197 SDL_SetError("No available video device"); | |
| 198 return(-1); | |
| 199 } | |
| 200 current_video = video; | |
| 201 current_video->name = bootstrap[i]->name; | |
| 202 | |
| 203 /* Do some basic variable initialization */ | |
| 204 video->screen = NULL; | |
| 205 video->shadow = NULL; | |
| 206 video->visible = NULL; | |
| 207 video->physpal = NULL; | |
| 208 video->gammacols = NULL; | |
| 209 video->gamma = NULL; | |
| 210 video->wm_title = NULL; | |
| 211 video->wm_icon = NULL; | |
| 212 video->offset_x = 0; | |
| 213 video->offset_y = 0; | |
| 214 memset(&video->info, 0, (sizeof video->info)); | |
| 215 | |
| 216 /* Set some very sane GL defaults */ | |
| 217 video->gl_config.driver_loaded = 0; | |
| 218 video->gl_config.dll_handle = NULL; | |
| 219 video->gl_config.red_size = 5; | |
| 220 #if 1 /* This seems to work on more video cards, as a default */ | |
| 221 video->gl_config.green_size = 5; | |
| 222 #else | |
| 223 video->gl_config.green_size = 6; | |
| 224 #endif | |
| 225 video->gl_config.blue_size = 5; | |
| 226 video->gl_config.alpha_size = 0; | |
| 227 video->gl_config.buffer_size = 0; | |
| 228 video->gl_config.depth_size = 16; | |
| 229 video->gl_config.stencil_size = 0; | |
| 230 video->gl_config.double_buffer = 1; | |
| 231 video->gl_config.accum_red_size = 0; | |
| 232 video->gl_config.accum_green_size = 0; | |
| 233 video->gl_config.accum_blue_size = 0; | |
| 234 video->gl_config.accum_alpha_size = 0; | |
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235 video->gl_config.stereo = 0; |
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236 video->gl_config.multisamplebuffers = 0; |
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237 video->gl_config.multisamplesamples = 0; |
| 0 | 238 |
| 239 /* Initialize the video subsystem */ | |
| 240 memset(&vformat, 0, sizeof(vformat)); | |
| 241 if ( video->VideoInit(video, &vformat) < 0 ) { | |
| 242 SDL_VideoQuit(); | |
| 243 return(-1); | |
| 244 } | |
| 245 | |
| 246 /* Create a zero sized video surface of the appropriate format */ | |
| 247 video_flags = SDL_SWSURFACE; | |
| 248 SDL_VideoSurface = SDL_CreateRGBSurface(video_flags, 0, 0, | |
| 249 vformat.BitsPerPixel, | |
| 250 vformat.Rmask, vformat.Gmask, vformat.Bmask, 0); | |
| 251 if ( SDL_VideoSurface == NULL ) { | |
| 252 SDL_VideoQuit(); | |
| 253 return(-1); | |
| 254 } | |
| 255 SDL_PublicSurface = NULL; /* Until SDL_SetVideoMode() */ | |
| 256 | |
| 257 #if 0 /* Don't change the current palette - may be used by other programs. | |
| 258 * The application can't do anything with the display surface until | |
| 259 * a video mode has been set anyway. :) | |
| 260 */ | |
| 261 /* If we have a palettized surface, create a default palette */ | |
| 262 if ( SDL_VideoSurface->format->palette ) { | |
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263 SDL_PixelFormat *vf = SDL_VideoSurface->format; |
| 0 | 264 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 265 video->SetColors(video, | |
| 266 0, vf->palette->ncolors, vf->palette->colors); | |
| 267 } | |
| 268 #endif | |
| 269 video->info.vfmt = SDL_VideoSurface->format; | |
| 270 | |
| 271 /* Start the event loop */ | |
| 272 if ( SDL_StartEventLoop(flags) < 0 ) { | |
| 273 SDL_VideoQuit(); | |
| 274 return(-1); | |
| 275 } | |
| 276 SDL_CursorInit(flags & SDL_INIT_EVENTTHREAD); | |
| 277 | |
| 278 /* We're ready to go! */ | |
| 279 return(0); | |
| 280 } | |
| 281 | |
| 282 char *SDL_VideoDriverName(char *namebuf, int maxlen) | |
| 283 { | |
| 284 if ( current_video != NULL ) { | |
| 285 strncpy(namebuf, current_video->name, maxlen-1); | |
| 286 namebuf[maxlen-1] = '\0'; | |
| 287 return(namebuf); | |
| 288 } | |
| 289 return(NULL); | |
| 290 } | |
| 291 | |
| 292 /* | |
| 293 * Get the current display surface | |
| 294 */ | |
| 295 SDL_Surface *SDL_GetVideoSurface(void) | |
| 296 { | |
| 297 SDL_Surface *visible; | |
| 298 | |
| 299 visible = NULL; | |
| 300 if ( current_video ) { | |
| 301 visible = current_video->visible; | |
| 302 } | |
| 303 return(visible); | |
| 304 } | |
| 305 | |
| 306 /* | |
| 307 * Get the current information about the video hardware | |
| 308 */ | |
| 309 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
| 310 { | |
| 311 const SDL_VideoInfo *info; | |
| 312 | |
| 313 info = NULL; | |
| 314 if ( current_video ) { | |
| 315 info = ¤t_video->info; | |
| 316 } | |
| 317 return(info); | |
| 318 } | |
| 319 | |
| 320 /* | |
| 321 * Return a pointer to an array of available screen dimensions for the | |
| 322 * given format, sorted largest to smallest. Returns NULL if there are | |
| 323 * no dimensions available for a particular format, or (SDL_Rect **)-1 | |
| 324 * if any dimension is okay for the given format. If 'format' is NULL, | |
| 325 * the mode list will be for the format given by SDL_GetVideoInfo()->vfmt | |
| 326 */ | |
| 327 SDL_Rect ** SDL_ListModes (SDL_PixelFormat *format, Uint32 flags) | |
| 328 { | |
| 329 SDL_VideoDevice *video = current_video; | |
| 330 SDL_VideoDevice *this = current_video; | |
| 331 SDL_Rect **modes; | |
| 332 | |
| 333 modes = NULL; | |
| 334 if ( SDL_VideoSurface ) { | |
| 335 if ( format == NULL ) { | |
| 336 format = SDL_VideoSurface->format; | |
| 337 } | |
| 338 modes = video->ListModes(this, format, flags); | |
| 339 } | |
| 340 return(modes); | |
| 341 } | |
| 342 | |
| 343 /* | |
| 344 * Check to see if a particular video mode is supported. | |
| 345 * It returns 0 if the requested mode is not supported under any bit depth, | |
| 346 * or returns the bits-per-pixel of the closest available mode with the | |
| 347 * given width and height. If this bits-per-pixel is different from the | |
| 348 * one used when setting the video mode, SDL_SetVideoMode() will succeed, | |
| 349 * but will emulate the requested bits-per-pixel with a shadow surface. | |
| 350 */ | |
| 351 static Uint8 SDL_closest_depths[4][8] = { | |
| 352 /* 8 bit closest depth ordering */ | |
| 353 { 0, 8, 16, 15, 32, 24, 0, 0 }, | |
| 354 /* 15,16 bit closest depth ordering */ | |
| 355 { 0, 16, 15, 32, 24, 8, 0, 0 }, | |
| 356 /* 24 bit closest depth ordering */ | |
| 357 { 0, 24, 32, 16, 15, 8, 0, 0 }, | |
| 358 /* 32 bit closest depth ordering */ | |
| 359 { 0, 32, 16, 15, 24, 8, 0, 0 } | |
| 360 }; | |
| 361 | |
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362 |
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363 #ifdef macintosh /* MPW optimization bug? */ |
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364 #define NEGATIVE_ONE 0xFFFFFFFF |
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365 #else |
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366 #define NEGATIVE_ONE -1 |
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367 #endif |
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368 |
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369 int SDL_VideoModeOK (int width, int height, int bpp, Uint32 flags) |
| 0 | 370 { |
| 371 int table, b, i; | |
| 372 int supported; | |
| 373 SDL_PixelFormat format; | |
| 374 SDL_Rect **sizes; | |
| 375 | |
| 376 /* Currently 1 and 4 bpp are not supported */ | |
| 377 if ( bpp < 8 || bpp > 32 ) { | |
| 378 return(0); | |
| 379 } | |
|
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380 if ( (width <= 0) || (height <= 0) ) { |
| 0 | 381 return(0); |
| 382 } | |
| 383 | |
| 384 /* Search through the list valid of modes */ | |
| 385 memset(&format, 0, sizeof(format)); | |
| 386 supported = 0; | |
| 387 table = ((bpp+7)/8)-1; | |
| 388 SDL_closest_depths[table][0] = bpp; | |
| 389 SDL_closest_depths[table][7] = 0; | |
| 390 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 391 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 392 sizes = SDL_ListModes(&format, flags); | |
| 393 if ( sizes == (SDL_Rect **)0 ) { | |
| 394 /* No sizes supported at this bit-depth */ | |
| 395 continue; | |
| 396 } else | |
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397 if (sizes == (SDL_Rect **)NEGATIVE_ONE) { |
| 0 | 398 /* Any size supported at this bit-depth */ |
| 399 supported = 1; | |
| 400 continue; | |
|
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401 } else if (current_video->handles_any_size) { |
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402 /* Driver can center a smaller surface to simulate fullscreen */ |
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403 for ( i=0; sizes[i]; ++i ) { |
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404 if ((sizes[i]->w >= width) && (sizes[i]->h >= height)) { |
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405 supported = 1; /* this mode can fit the centered window. */ |
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406 break; |
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407 } |
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408 } |
| 0 | 409 } else |
| 410 for ( i=0; sizes[i]; ++i ) { | |
| 411 if ((sizes[i]->w == width) && (sizes[i]->h == height)) { | |
| 412 supported = 1; | |
| 413 break; | |
| 414 } | |
| 415 } | |
| 416 } | |
| 417 if ( supported ) { | |
| 418 --b; | |
| 419 return(SDL_closest_depths[table][b]); | |
| 420 } else { | |
| 421 return(0); | |
| 422 } | |
| 423 } | |
| 424 | |
| 425 /* | |
| 426 * Get the closest non-emulated video mode to the one requested | |
| 427 */ | |
| 428 static int SDL_GetVideoMode (int *w, int *h, int *BitsPerPixel, Uint32 flags) | |
| 429 { | |
| 430 int table, b, i; | |
| 431 int supported; | |
| 432 int native_bpp; | |
| 433 SDL_PixelFormat format; | |
| 434 SDL_Rect **sizes; | |
| 435 | |
|
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436 /* Check parameters */ |
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437 if ( *BitsPerPixel < 8 || *BitsPerPixel > 32 ) { |
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438 SDL_SetError("Invalid bits per pixel (range is {8...32})"); |
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439 return(0); |
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440 } |
|
430
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441 if ((*w <= 0) || (*h <= 0)) { |
|
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442 SDL_SetError("Invalid width or height"); |
|
430
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443 return(0); |
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444 } |
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445 |
| 0 | 446 /* Try the original video mode, get the closest depth */ |
| 447 native_bpp = SDL_VideoModeOK(*w, *h, *BitsPerPixel, flags); | |
| 448 if ( native_bpp == *BitsPerPixel ) { | |
| 449 return(1); | |
| 450 } | |
| 451 if ( native_bpp > 0 ) { | |
| 452 *BitsPerPixel = native_bpp; | |
| 453 return(1); | |
| 454 } | |
| 455 | |
| 456 /* No exact size match at any depth, look for closest match */ | |
| 457 memset(&format, 0, sizeof(format)); | |
| 458 supported = 0; | |
| 459 table = ((*BitsPerPixel+7)/8)-1; | |
| 460 SDL_closest_depths[table][0] = *BitsPerPixel; | |
| 461 SDL_closest_depths[table][7] = SDL_VideoSurface->format->BitsPerPixel; | |
| 462 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 463 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 464 sizes = SDL_ListModes(&format, flags); | |
| 465 if ( sizes == (SDL_Rect **)0 ) { | |
| 466 /* No sizes supported at this bit-depth */ | |
| 467 continue; | |
| 468 } | |
| 469 for ( i=0; sizes[i]; ++i ) { | |
| 470 if ((sizes[i]->w < *w) || (sizes[i]->h < *h)) { | |
| 471 if ( i > 0 ) { | |
| 472 --i; | |
| 473 *w = sizes[i]->w; | |
| 474 *h = sizes[i]->h; | |
| 475 *BitsPerPixel = SDL_closest_depths[table][b]; | |
| 476 supported = 1; | |
| 477 } else { | |
| 478 /* Largest mode too small... */; | |
| 479 } | |
| 480 break; | |
| 481 } | |
| 482 } | |
| 483 if ( (i > 0) && ! sizes[i] ) { | |
| 484 /* The smallest mode was larger than requested, OK */ | |
| 485 --i; | |
| 486 *w = sizes[i]->w; | |
| 487 *h = sizes[i]->h; | |
| 488 *BitsPerPixel = SDL_closest_depths[table][b]; | |
| 489 supported = 1; | |
| 490 } | |
| 491 } | |
| 492 if ( ! supported ) { | |
| 493 SDL_SetError("No video mode large enough for %dx%d", *w, *h); | |
| 494 } | |
| 495 return(supported); | |
| 496 } | |
| 497 | |
| 498 /* This should probably go somewhere else -- like SDL_surface.c */ | |
| 499 static void SDL_ClearSurface(SDL_Surface *surface) | |
| 500 { | |
| 501 Uint32 black; | |
| 502 | |
| 503 black = SDL_MapRGB(surface->format, 0, 0, 0); | |
| 504 SDL_FillRect(surface, NULL, black); | |
| 505 if ((surface->flags&SDL_HWSURFACE) && (surface->flags&SDL_DOUBLEBUF)) { | |
| 506 SDL_Flip(surface); | |
| 507 SDL_FillRect(surface, NULL, black); | |
| 508 } | |
| 509 SDL_Flip(surface); | |
| 510 } | |
| 511 | |
| 512 /* | |
| 513 * Create a shadow surface suitable for fooling the app. :-) | |
| 514 */ | |
| 515 static void SDL_CreateShadowSurface(int depth) | |
| 516 { | |
| 517 Uint32 Rmask, Gmask, Bmask; | |
| 518 | |
| 519 /* Allocate the shadow surface */ | |
| 520 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 521 Rmask = (SDL_VideoSurface->format)->Rmask; | |
| 522 Gmask = (SDL_VideoSurface->format)->Gmask; | |
| 523 Bmask = (SDL_VideoSurface->format)->Bmask; | |
| 524 } else { | |
| 525 Rmask = Gmask = Bmask = 0; | |
| 526 } | |
| 527 SDL_ShadowSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
| 528 SDL_VideoSurface->w, SDL_VideoSurface->h, | |
| 529 depth, Rmask, Gmask, Bmask, 0); | |
| 530 if ( SDL_ShadowSurface == NULL ) { | |
| 531 return; | |
| 532 } | |
| 533 | |
| 534 /* 8-bit shadow surfaces report that they have exclusive palette */ | |
| 535 if ( SDL_ShadowSurface->format->palette ) { | |
| 536 SDL_ShadowSurface->flags |= SDL_HWPALETTE; | |
| 537 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 538 memcpy(SDL_ShadowSurface->format->palette->colors, | |
| 539 SDL_VideoSurface->format->palette->colors, | |
| 540 SDL_VideoSurface->format->palette->ncolors* | |
| 541 sizeof(SDL_Color)); | |
| 542 } else { | |
| 543 SDL_DitherColors( | |
| 544 SDL_ShadowSurface->format->palette->colors, depth); | |
| 545 } | |
| 546 } | |
| 547 | |
| 548 /* If the video surface is resizable, the shadow should say so */ | |
| 549 if ( (SDL_VideoSurface->flags & SDL_RESIZABLE) == SDL_RESIZABLE ) { | |
| 550 SDL_ShadowSurface->flags |= SDL_RESIZABLE; | |
| 551 } | |
| 552 /* If the video surface has no frame, the shadow should say so */ | |
| 553 if ( (SDL_VideoSurface->flags & SDL_NOFRAME) == SDL_NOFRAME ) { | |
| 554 SDL_ShadowSurface->flags |= SDL_NOFRAME; | |
| 555 } | |
| 556 /* If the video surface is fullscreen, the shadow should say so */ | |
| 557 if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 558 SDL_ShadowSurface->flags |= SDL_FULLSCREEN; | |
| 559 } | |
| 560 /* If the video surface is flippable, the shadow should say so */ | |
| 561 if ( (SDL_VideoSurface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 562 SDL_ShadowSurface->flags |= SDL_DOUBLEBUF; | |
| 563 } | |
| 564 return; | |
| 565 } | |
| 566 | |
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567 #ifdef __QNXNTO__ |
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568 #include <sys/neutrino.h> |
|
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569 #endif /* __QNXNTO__ */ |
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570 |
| 0 | 571 /* |
| 572 * Set the requested video mode, allocating a shadow buffer if necessary. | |
| 573 */ | |
| 574 SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags) | |
| 575 { | |
| 576 SDL_VideoDevice *video, *this; | |
| 577 SDL_Surface *prev_mode, *mode; | |
| 578 int video_w; | |
| 579 int video_h; | |
| 580 int video_bpp; | |
| 581 int is_opengl; | |
| 582 SDL_GrabMode saved_grab; | |
| 583 | |
| 584 /* Start up the video driver, if necessary.. | |
| 585 WARNING: This is the only function protected this way! | |
| 586 */ | |
| 587 if ( ! current_video ) { | |
| 588 if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE) < 0 ) { | |
| 589 return(NULL); | |
| 590 } | |
| 591 } | |
| 592 this = video = current_video; | |
| 593 | |
| 594 /* Default to the current video bpp */ | |
| 595 if ( bpp == 0 ) { | |
| 596 flags |= SDL_ANYFORMAT; | |
| 597 bpp = SDL_VideoSurface->format->BitsPerPixel; | |
| 598 } | |
| 599 | |
| 600 /* Get a good video mode, the closest one possible */ | |
| 601 video_w = width; | |
| 602 video_h = height; | |
| 603 video_bpp = bpp; | |
| 604 if ( ! SDL_GetVideoMode(&video_w, &video_h, &video_bpp, flags) ) { | |
| 605 return(NULL); | |
| 606 } | |
| 607 | |
| 608 /* Check the requested flags */ | |
| 609 /* There's no palette in > 8 bits-per-pixel mode */ | |
| 610 if ( video_bpp > 8 ) { | |
| 611 flags &= ~SDL_HWPALETTE; | |
| 612 } | |
| 613 #if 0 | |
| 614 if ( (flags&SDL_FULLSCREEN) != SDL_FULLSCREEN ) { | |
| 615 /* There's no windowed double-buffering */ | |
| 616 flags &= ~SDL_DOUBLEBUF; | |
| 617 } | |
| 618 #endif | |
| 619 if ( (flags&SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 620 /* Use hardware surfaces when double-buffering */ | |
| 621 flags |= SDL_HWSURFACE; | |
| 622 } | |
| 623 | |
| 624 is_opengl = ( ( flags & SDL_OPENGL ) == SDL_OPENGL ); | |
| 625 if ( is_opengl ) { | |
| 626 /* These flags are for 2D video modes only */ | |
| 627 flags &= ~(SDL_HWSURFACE|SDL_DOUBLEBUF); | |
| 628 } | |
| 629 | |
|
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Fixed stuck keys when changing the video mode
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630 /* Reset the keyboard here so event callbacks can run */ |
|
c3e9d4a623c1
Fixed stuck keys when changing the video mode
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diff
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631 SDL_ResetKeyboard(); |
|
460
a888b3ae31ff
Reset mouse state when changing video modes
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632 SDL_ResetMouse(); |
|
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Fixed stuck keys when changing the video mode
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|
633 |
| 0 | 634 /* Clean up any previous video mode */ |
| 635 if ( SDL_PublicSurface != NULL ) { | |
| 636 SDL_PublicSurface = NULL; | |
| 637 } | |
| 638 if ( SDL_ShadowSurface != NULL ) { | |
| 639 SDL_Surface *ready_to_go; | |
| 640 ready_to_go = SDL_ShadowSurface; | |
| 641 SDL_ShadowSurface = NULL; | |
| 642 SDL_FreeSurface(ready_to_go); | |
| 643 } | |
| 644 if ( video->physpal ) { | |
| 645 free(video->physpal->colors); | |
| 646 free(video->physpal); | |
| 647 video->physpal = NULL; | |
| 648 } | |
| 649 if( video->gammacols) { | |
|
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|
650 free(video->gammacols); |
| 0 | 651 video->gammacols = NULL; |
| 652 } | |
| 653 | |
| 654 /* Save the previous grab state and turn off grab for mode switch */ | |
| 655 saved_grab = SDL_WM_GrabInputOff(); | |
| 656 | |
| 657 /* Try to set the video mode, along with offset and clipping */ | |
| 658 prev_mode = SDL_VideoSurface; | |
| 659 SDL_LockCursor(); | |
| 660 SDL_VideoSurface = NULL; /* In case it's freed by driver */ | |
| 661 mode = video->SetVideoMode(this, prev_mode,video_w,video_h,video_bpp,flags); | |
| 662 if ( mode ) { /* Prevent resize events from mode change */ | |
| 663 SDL_PrivateResize(mode->w, mode->h); | |
|
229
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Fix a crash if an OpenGL video mode can't be set.
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664 |
|
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Fix a crash if an OpenGL video mode can't be set.
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665 /* Sam - If we asked for OpenGL mode, and didn't get it, fail */ |
|
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diff
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|
666 if ( is_opengl && !(mode->flags & SDL_OPENGL) ) { |
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667 mode = NULL; |
|
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50f5a29c6a17
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|
668 SDL_SetError("OpenGL not available"); |
|
229
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|
669 } |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
670 } |
| 0 | 671 /* |
| 672 * rcg11292000 | |
| 673 * If you try to set an SDL_OPENGL surface, and fail to find a | |
| 674 * matching visual, then the next call to SDL_SetVideoMode() | |
| 675 * will segfault, since we no longer point to a dummy surface, | |
| 676 * but rather NULL. | |
| 677 * Sam 11/29/00 | |
| 678 * WARNING, we need to make sure that the previous mode hasn't | |
| 679 * already been freed by the video driver. What do we do in | |
| 680 * that case? Should we call SDL_VideoInit() again? | |
| 681 */ | |
| 682 SDL_VideoSurface = (mode != NULL) ? mode : prev_mode; | |
| 683 | |
| 684 if ( (mode != NULL) && (!is_opengl) ) { | |
| 685 /* Sanity check */ | |
| 686 if ( (mode->w < width) || (mode->h < height) ) { | |
| 687 SDL_SetError("Video mode smaller than requested"); | |
| 688 return(NULL); | |
| 689 } | |
| 690 | |
| 691 /* If we have a palettized surface, create a default palette */ | |
| 692 if ( mode->format->palette ) { | |
|
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66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
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|
693 SDL_PixelFormat *vf = mode->format; |
| 0 | 694 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 695 video->SetColors(this, 0, vf->palette->ncolors, | |
| 696 vf->palette->colors); | |
| 697 } | |
| 698 | |
| 699 /* Clear the surface to black */ | |
| 700 video->offset_x = 0; | |
| 701 video->offset_y = 0; | |
| 702 mode->offset = 0; | |
| 703 SDL_SetClipRect(mode, NULL); | |
| 704 SDL_ClearSurface(mode); | |
| 705 | |
| 706 /* Now adjust the offsets to match the desired mode */ | |
| 707 video->offset_x = (mode->w-width)/2; | |
| 708 video->offset_y = (mode->h-height)/2; | |
| 709 mode->offset = video->offset_y*mode->pitch + | |
| 710 video->offset_x*mode->format->BytesPerPixel; | |
| 711 #ifdef DEBUG_VIDEO | |
| 712 fprintf(stderr, | |
| 713 "Requested mode: %dx%dx%d, obtained mode %dx%dx%d (offset %d)\n", | |
| 714 width, height, bpp, | |
| 715 mode->w, mode->h, mode->format->BitsPerPixel, mode->offset); | |
| 716 #endif | |
| 717 mode->w = width; | |
| 718 mode->h = height; | |
| 719 SDL_SetClipRect(mode, NULL); | |
| 720 } | |
| 721 SDL_ResetCursor(); | |
| 722 SDL_UnlockCursor(); | |
| 723 | |
| 724 /* If we failed setting a video mode, return NULL... (Uh Oh!) */ | |
| 725 if ( mode == NULL ) { | |
| 726 return(NULL); | |
| 727 } | |
| 728 | |
| 729 /* If there is no window manager, set the SDL_NOFRAME flag */ | |
| 730 if ( ! video->info.wm_available ) { | |
| 731 mode->flags |= SDL_NOFRAME; | |
| 732 } | |
| 733 | |
| 734 /* Reset the mouse cursor and grab for new video mode */ | |
| 735 SDL_SetCursor(NULL); | |
| 736 if ( video->UpdateMouse ) { | |
| 737 video->UpdateMouse(this); | |
| 738 } | |
| 739 SDL_WM_GrabInput(saved_grab); | |
| 740 SDL_GetRelativeMouseState(NULL, NULL); /* Clear first large delta */ | |
| 741 | |
|
650
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
Ryan C. Gordon <icculus@icculus.org>
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630
diff
changeset
|
742 #ifdef HAVE_OPENGL |
|
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
Ryan C. Gordon <icculus@icculus.org>
parents:
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diff
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|
743 /* Load GL symbols (before MakeCurrent, where we need glGetString). */ |
|
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
Ryan C. Gordon <icculus@icculus.org>
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|
744 if ( flags & (SDL_OPENGL | SDL_OPENGLBLIT) ) { |
|
910
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Date: Sat, 26 Jun 2004 14:58:42 +0300
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parents:
883
diff
changeset
|
745 |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
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|
746 #ifdef __QNXNTO__ |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
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747 #if (_NTO_VERSION < 630) |
|
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748 #define __SDL_NOGETPROCADDR__ |
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749 #endif /* 6.3.0 */ |
|
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750 #endif /* __QNXNTO__ */ |
|
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751 |
|
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752 #ifdef __SDL_NOGETPROCADDR__ |
|
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753 #define SDL_PROC(ret,func,params) video->func=func; |
|
663
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754 #else |
|
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755 #define SDL_PROC(ret,func,params) \ |
|
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756 do { \ |
|
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757 video->func = SDL_GL_GetProcAddress(#func); \ |
|
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758 if ( ! video->func ) { \ |
|
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759 SDL_SetError("Couldn't load GL function: %s\n", #func); \ |
|
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760 return(NULL); \ |
|
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761 } \ |
|
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762 } while ( 0 ); |
|
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763 |
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764 #endif /* __SDL_NOGETPROCADDR__ */ |
|
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765 |
|
650
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Ryan C. Gordon <icculus@icculus.org>
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766 #include "SDL_glfuncs.h" |
|
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767 #undef SDL_PROC |
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768 } |
|
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769 #endif /* HAVE_OPENGL */ |
|
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|
770 |
| 0 | 771 /* If we're running OpenGL, make the context current */ |
| 772 if ( (video->screen->flags & SDL_OPENGL) && | |
| 773 video->GL_MakeCurrent ) { | |
| 774 if ( video->GL_MakeCurrent(this) < 0 ) { | |
| 775 return(NULL); | |
| 776 } | |
| 777 } | |
| 778 | |
| 779 /* Set up a fake SDL surface for OpenGL "blitting" */ | |
| 780 if ( (flags & SDL_OPENGLBLIT) == SDL_OPENGLBLIT ) { | |
| 781 /* Load GL functions for performing the texture updates */ | |
| 782 #ifdef HAVE_OPENGL | |
| 783 | |
| 784 /* Create a software surface for blitting */ | |
| 785 #ifdef GL_VERSION_1_2 | |
| 786 /* If the implementation either supports the packed pixels | |
| 787 extension, or implements the core OpenGL 1.2 API, it will | |
| 788 support the GL_UNSIGNED_SHORT_5_6_5 texture format. | |
| 789 */ | |
| 790 if ( (bpp == 16) && | |
|
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791 (strstr((const char *)video->glGetString(GL_EXTENSIONS), "GL_EXT_packed_pixels") || |
|
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792 (atof((const char *)video->glGetString(GL_VERSION)) >= 1.2f)) |
|
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793 ) { |
| 0 | 794 video->is_32bit = 0; |
| 795 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 796 flags, | |
| 797 width, | |
| 798 height, | |
| 799 16, | |
| 800 31 << 11, | |
| 801 63 << 5, | |
| 802 31, | |
| 803 0 | |
| 804 ); | |
| 805 } | |
| 806 else | |
| 807 #endif /* OpenGL 1.2 */ | |
| 808 { | |
| 809 video->is_32bit = 1; | |
| 810 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 811 flags, | |
| 812 width, | |
| 813 height, | |
| 814 32, | |
| 815 #if SDL_BYTEORDER == SDL_LIL_ENDIAN | |
| 816 0x000000FF, | |
| 817 0x0000FF00, | |
| 818 0x00FF0000, | |
| 819 0xFF000000 | |
| 820 #else | |
| 821 0xFF000000, | |
| 822 0x00FF0000, | |
| 823 0x0000FF00, | |
| 824 0x000000FF | |
| 825 #endif | |
| 826 ); | |
| 827 } | |
| 828 if ( ! SDL_VideoSurface ) { | |
| 829 return(NULL); | |
| 830 } | |
| 831 SDL_VideoSurface->flags = mode->flags | SDL_OPENGLBLIT; | |
| 832 | |
| 833 /* Free the original video mode surface (is this safe?) */ | |
| 834 SDL_FreeSurface(mode); | |
| 835 | |
|
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836 /* Set the surface completely opaque & white by default */ |
| 0 | 837 memset( SDL_VideoSurface->pixels, 255, SDL_VideoSurface->h * SDL_VideoSurface->pitch ); |
| 838 video->glGenTextures( 1, &video->texture ); | |
| 839 video->glBindTexture( GL_TEXTURE_2D, video->texture ); | |
| 840 video->glTexImage2D( | |
| 841 GL_TEXTURE_2D, | |
| 842 0, | |
| 843 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 844 256, | |
| 845 256, | |
| 846 0, | |
| 847 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 848 #ifdef GL_VERSION_1_2 | |
| 849 video->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 850 #else | |
| 851 GL_UNSIGNED_BYTE, | |
| 852 #endif | |
| 853 NULL); | |
| 854 | |
| 855 video->UpdateRects = SDL_GL_UpdateRectsLock; | |
| 856 #else | |
| 857 SDL_SetError("Somebody forgot to #define HAVE_OPENGL"); | |
| 858 return(NULL); | |
| 859 #endif | |
| 860 } | |
| 861 | |
| 862 /* Create a shadow surface if necessary */ | |
| 863 /* There are three conditions under which we create a shadow surface: | |
| 864 1. We need a particular bits-per-pixel that we didn't get. | |
| 865 2. We need a hardware palette and didn't get one. | |
| 866 3. We need a software surface and got a hardware surface. | |
| 867 */ | |
| 868 if ( !(SDL_VideoSurface->flags & SDL_OPENGL) && | |
| 869 ( | |
| 870 ( !(flags&SDL_ANYFORMAT) && | |
| 871 (SDL_VideoSurface->format->BitsPerPixel != bpp)) || | |
| 872 ( (flags&SDL_HWPALETTE) && | |
| 873 !(SDL_VideoSurface->flags&SDL_HWPALETTE)) || | |
| 874 /* If the surface is in hardware, video writes are visible | |
| 875 as soon as they are performed, so we need to buffer them | |
| 876 */ | |
| 877 ( ((flags&SDL_HWSURFACE) == SDL_SWSURFACE) && | |
|
580
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878 (SDL_VideoSurface->flags&SDL_HWSURFACE)) || |
|
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879 ( (flags&SDL_DOUBLEBUF) && |
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880 (SDL_VideoSurface->flags&SDL_HWSURFACE) && |
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881 !(SDL_VideoSurface->flags&SDL_DOUBLEBUF)) |
| 0 | 882 ) ) { |
| 883 SDL_CreateShadowSurface(bpp); | |
| 884 if ( SDL_ShadowSurface == NULL ) { | |
| 885 SDL_SetError("Couldn't create shadow surface"); | |
| 886 return(NULL); | |
| 887 } | |
| 888 SDL_PublicSurface = SDL_ShadowSurface; | |
| 889 } else { | |
| 890 SDL_PublicSurface = SDL_VideoSurface; | |
| 891 } | |
| 892 video->info.vfmt = SDL_VideoSurface->format; | |
| 893 | |
| 894 /* We're done! */ | |
| 895 return(SDL_PublicSurface); | |
| 896 } | |
| 897 | |
| 898 /* | |
| 899 * Convert a surface into the video pixel format. | |
| 900 */ | |
| 901 SDL_Surface * SDL_DisplayFormat (SDL_Surface *surface) | |
| 902 { | |
| 903 Uint32 flags; | |
| 904 | |
| 905 if ( ! SDL_PublicSurface ) { | |
| 906 SDL_SetError("No video mode has been set"); | |
| 907 return(NULL); | |
| 908 } | |
| 909 /* Set the flags appropriate for copying to display surface */ | |
|
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910 if (((SDL_PublicSurface->flags&SDL_HWSURFACE) == SDL_HWSURFACE) && current_video->info.blit_hw) |
|
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911 flags = SDL_HWSURFACE; |
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912 else |
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913 flags = SDL_SWSURFACE; |
| 0 | 914 #ifdef AUTORLE_DISPLAYFORMAT |
| 915 flags |= (surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA)); | |
| 916 flags |= SDL_RLEACCELOK; | |
| 917 #else | |
| 918 flags |= surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA|SDL_RLEACCELOK); | |
| 919 #endif | |
| 920 return(SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags)); | |
| 921 } | |
| 922 | |
| 923 /* | |
| 924 * Convert a surface into a format that's suitable for blitting to | |
| 925 * the screen, but including an alpha channel. | |
| 926 */ | |
| 927 SDL_Surface *SDL_DisplayFormatAlpha(SDL_Surface *surface) | |
| 928 { | |
| 929 SDL_PixelFormat *vf; | |
| 930 SDL_PixelFormat *format; | |
| 931 SDL_Surface *converted; | |
| 932 Uint32 flags; | |
| 933 /* default to ARGB8888 */ | |
| 934 Uint32 amask = 0xff000000; | |
| 935 Uint32 rmask = 0x00ff0000; | |
| 936 Uint32 gmask = 0x0000ff00; | |
| 937 Uint32 bmask = 0x000000ff; | |
| 938 | |
| 939 if ( ! SDL_PublicSurface ) { | |
| 940 SDL_SetError("No video mode has been set"); | |
| 941 return(NULL); | |
| 942 } | |
| 943 vf = SDL_PublicSurface->format; | |
| 944 | |
| 945 switch(vf->BytesPerPixel) { | |
| 946 case 2: | |
| 947 /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}. | |
| 948 For anything else (like ARGB4444) it doesn't matter | |
| 949 since we have no special code for it anyway */ | |
| 950 if ( (vf->Rmask == 0x1f) && | |
| 951 (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) { | |
| 952 rmask = 0xff; | |
| 953 bmask = 0xff0000; | |
| 954 } | |
| 955 break; | |
| 956 | |
| 957 case 3: | |
| 958 case 4: | |
| 959 /* Keep the video format, as long as the high 8 bits are | |
| 960 unused or alpha */ | |
| 961 if ( (vf->Rmask == 0xff) && (vf->Bmask == 0xff0000) ) { | |
| 962 rmask = 0xff; | |
| 963 bmask = 0xff0000; | |
| 964 } | |
| 965 break; | |
| 966 | |
| 967 default: | |
| 968 /* We have no other optimised formats right now. When/if a new | |
| 969 optimised alpha format is written, add the converter here */ | |
| 970 break; | |
| 971 } | |
| 972 format = SDL_AllocFormat(32, rmask, gmask, bmask, amask); | |
| 973 flags = SDL_PublicSurface->flags & SDL_HWSURFACE; | |
| 974 flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); | |
| 975 converted = SDL_ConvertSurface(surface, format, flags); | |
| 976 SDL_FreeFormat(format); | |
| 977 return(converted); | |
| 978 } | |
| 979 | |
| 980 /* | |
| 981 * Update a specific portion of the physical screen | |
| 982 */ | |
| 983 void SDL_UpdateRect(SDL_Surface *screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h) | |
| 984 { | |
| 985 if ( screen ) { | |
| 986 SDL_Rect rect; | |
| 987 | |
| 988 /* Perform some checking */ | |
| 989 if ( w == 0 ) | |
| 990 w = screen->w; | |
| 991 if ( h == 0 ) | |
| 992 h = screen->h; | |
| 993 if ( (int)(x+w) > screen->w ) | |
| 994 return; | |
| 995 if ( (int)(y+h) > screen->h ) | |
| 996 return; | |
| 997 | |
| 998 /* Fill the rectangle */ | |
| 999 rect.x = x; | |
| 1000 rect.y = y; | |
| 1001 rect.w = w; | |
| 1002 rect.h = h; | |
| 1003 SDL_UpdateRects(screen, 1, &rect); | |
| 1004 } | |
| 1005 } | |
| 1006 void SDL_UpdateRects (SDL_Surface *screen, int numrects, SDL_Rect *rects) | |
| 1007 { | |
| 1008 int i; | |
| 1009 SDL_VideoDevice *video = current_video; | |
| 1010 SDL_VideoDevice *this = current_video; | |
| 1011 | |
| 1012 if ( screen == SDL_ShadowSurface ) { | |
| 1013 /* Blit the shadow surface using saved mapping */ | |
|
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1014 SDL_Palette *pal = screen->format->palette; |
| 0 | 1015 SDL_Color *saved_colors = NULL; |
|
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1016 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1017 /* simulated 8bpp, use correct physical palette */ |
| 1018 saved_colors = pal->colors; | |
| 1019 if ( video->gammacols ) { | |
| 1020 /* gamma-corrected palette */ | |
| 1021 pal->colors = video->gammacols; | |
| 1022 } else if ( video->physpal ) { | |
| 1023 /* physical palette different from logical */ | |
| 1024 pal->colors = video->physpal->colors; | |
| 1025 } | |
| 1026 } | |
| 1027 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { | |
| 1028 SDL_LockCursor(); | |
| 1029 SDL_DrawCursor(SDL_ShadowSurface); | |
| 1030 for ( i=0; i<numrects; ++i ) { | |
| 1031 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1032 SDL_VideoSurface, &rects[i]); | |
| 1033 } | |
| 1034 SDL_EraseCursor(SDL_ShadowSurface); | |
| 1035 SDL_UnlockCursor(); | |
| 1036 } else { | |
| 1037 for ( i=0; i<numrects; ++i ) { | |
| 1038 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1039 SDL_VideoSurface, &rects[i]); | |
| 1040 } | |
| 1041 } | |
|
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1042 if ( saved_colors ) { |
| 0 | 1043 pal->colors = saved_colors; |
|
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1044 } |
| 0 | 1045 |
| 1046 /* Fall through to video surface update */ | |
| 1047 screen = SDL_VideoSurface; | |
| 1048 } | |
| 1049 if ( screen == SDL_VideoSurface ) { | |
| 1050 /* Update the video surface */ | |
| 1051 if ( screen->offset ) { | |
| 1052 for ( i=0; i<numrects; ++i ) { | |
| 1053 rects[i].x += video->offset_x; | |
| 1054 rects[i].y += video->offset_y; | |
| 1055 } | |
| 1056 video->UpdateRects(this, numrects, rects); | |
| 1057 for ( i=0; i<numrects; ++i ) { | |
| 1058 rects[i].x -= video->offset_x; | |
| 1059 rects[i].y -= video->offset_y; | |
| 1060 } | |
| 1061 } else { | |
| 1062 video->UpdateRects(this, numrects, rects); | |
| 1063 } | |
| 1064 } | |
| 1065 } | |
| 1066 | |
| 1067 /* | |
| 1068 * Performs hardware double buffering, if possible, or a full update if not. | |
| 1069 */ | |
| 1070 int SDL_Flip(SDL_Surface *screen) | |
| 1071 { | |
| 1072 SDL_VideoDevice *video = current_video; | |
| 1073 /* Copy the shadow surface to the video surface */ | |
| 1074 if ( screen == SDL_ShadowSurface ) { | |
| 1075 SDL_Rect rect; | |
|
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1076 SDL_Palette *pal = screen->format->palette; |
| 0 | 1077 SDL_Color *saved_colors = NULL; |
|
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1078 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1079 /* simulated 8bpp, use correct physical palette */ |
| 1080 saved_colors = pal->colors; | |
| 1081 if ( video->gammacols ) { | |
| 1082 /* gamma-corrected palette */ | |
| 1083 pal->colors = video->gammacols; | |
| 1084 } else if ( video->physpal ) { | |
| 1085 /* physical palette different from logical */ | |
| 1086 pal->colors = video->physpal->colors; | |
| 1087 } | |
| 1088 } | |
| 1089 | |
| 1090 rect.x = 0; | |
| 1091 rect.y = 0; | |
| 1092 rect.w = screen->w; | |
| 1093 rect.h = screen->h; | |
|
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1094 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { |
|
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1095 SDL_LockCursor(); |
|
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1096 SDL_DrawCursor(SDL_ShadowSurface); |
|
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1097 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1098 SDL_VideoSurface, &rect); |
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1099 SDL_EraseCursor(SDL_ShadowSurface); |
|
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1100 SDL_UnlockCursor(); |
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|
1101 } else { |
|
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Fixed missing cursor after shadow buffer flip (thanks Jan!)
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1102 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
|
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1103 SDL_VideoSurface, &rect); |
|
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Fixed missing cursor after shadow buffer flip (thanks Jan!)
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1104 } |
|
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Fixed missing cursor after shadow buffer flip (thanks Jan!)
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1105 if ( saved_colors ) { |
|
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Fixed missing cursor after shadow buffer flip (thanks Jan!)
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1106 pal->colors = saved_colors; |
|
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1107 } |
| 0 | 1108 |
|
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1109 /* Fall through to video surface update */ |
| 0 | 1110 screen = SDL_VideoSurface; |
| 1111 } | |
| 1112 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 1113 SDL_VideoDevice *this = current_video; | |
| 1114 return(video->FlipHWSurface(this, SDL_VideoSurface)); | |
| 1115 } else { | |
| 1116 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1117 } | |
| 1118 return(0); | |
| 1119 } | |
| 1120 | |
| 1121 static void SetPalette_logical(SDL_Surface *screen, SDL_Color *colors, | |
| 1122 int firstcolor, int ncolors) | |
| 1123 { | |
|
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|
1124 SDL_Palette *pal = screen->format->palette; |
| 0 | 1125 SDL_Palette *vidpal; |
| 1126 | |
| 1127 if ( colors != (pal->colors + firstcolor) ) { | |
|
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|
1128 memcpy(pal->colors + firstcolor, colors, |
| 0 | 1129 ncolors * sizeof(*colors)); |
| 1130 } | |
| 1131 | |
| 1132 vidpal = SDL_VideoSurface->format->palette; | |
| 1133 if ( (screen == SDL_ShadowSurface) && vidpal ) { | |
|
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|
1134 /* |
| 0 | 1135 * This is a shadow surface, and the physical |
| 1136 * framebuffer is also indexed. Propagate the | |
| 1137 * changes to its logical palette so that | |
| 1138 * updates are always identity blits | |
| 1139 */ | |
| 1140 memcpy(vidpal->colors + firstcolor, colors, | |
| 1141 ncolors * sizeof(*colors)); | |
| 1142 } | |
| 1143 SDL_FormatChanged(screen); | |
| 1144 } | |
| 1145 | |
| 1146 static int SetPalette_physical(SDL_Surface *screen, | |
| 1147 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1148 { | |
| 1149 SDL_VideoDevice *video = current_video; | |
| 1150 int gotall = 1; | |
| 1151 | |
| 1152 if ( video->physpal ) { | |
| 1153 /* We need to copy the new colors, since we haven't | |
| 1154 * already done the copy in the logical set above. | |
| 1155 */ | |
| 1156 memcpy(video->physpal->colors + firstcolor, | |
| 1157 colors, ncolors * sizeof(*colors)); | |
| 1158 } | |
| 1159 if ( screen == SDL_ShadowSurface ) { | |
| 1160 if ( SDL_VideoSurface->flags & SDL_HWPALETTE ) { | |
| 1161 /* | |
| 1162 * The real screen is also indexed - set its physical | |
| 1163 * palette. The physical palette does not include the | |
| 1164 * gamma modification, we apply it directly instead, | |
| 1165 * but this only happens if we have hardware palette. | |
| 1166 */ | |
| 1167 screen = SDL_VideoSurface; | |
| 1168 } else { | |
| 1169 /* | |
| 1170 * The video surface is not indexed - invalidate any | |
| 1171 * active shadow-to-video blit mappings. | |
| 1172 */ | |
| 1173 if ( screen->map->dst == SDL_VideoSurface ) { | |
| 1174 SDL_InvalidateMap(screen->map); | |
| 1175 } | |
| 1176 if ( video->gamma ) { | |
| 1177 if( ! video->gammacols ) { | |
| 1178 SDL_Palette *pp = video->physpal; | |
| 1179 if(!pp) | |
| 1180 pp = screen->format->palette; | |
| 1181 video->gammacols = malloc(pp->ncolors | |
| 1182 * sizeof(SDL_Color)); | |
| 1183 SDL_ApplyGamma(video->gamma, | |
| 1184 pp->colors, | |
| 1185 video->gammacols, | |
| 1186 pp->ncolors); | |
| 1187 } else { | |
| 1188 SDL_ApplyGamma(video->gamma, colors, | |
| 1189 video->gammacols | |
| 1190 + firstcolor, | |
| 1191 ncolors); | |
| 1192 } | |
| 1193 } | |
| 1194 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1195 } | |
| 1196 } | |
| 1197 | |
| 1198 if ( screen == SDL_VideoSurface ) { | |
| 1199 SDL_Color gcolors[256]; | |
| 1200 | |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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1201 if ( video->gamma ) { |
|
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|
1202 SDL_ApplyGamma(video->gamma, colors, gcolors, ncolors); |
| 0 | 1203 colors = gcolors; |
| 1204 } | |
| 1205 gotall = video->SetColors(video, firstcolor, ncolors, colors); | |
| 1206 if ( ! gotall ) { | |
| 1207 /* The video flags shouldn't have SDL_HWPALETTE, and | |
| 1208 the video driver is responsible for copying back the | |
| 1209 correct colors into the video surface palette. | |
| 1210 */ | |
| 1211 ; | |
| 1212 } | |
| 1213 SDL_CursorPaletteChanged(); | |
| 1214 } | |
| 1215 return gotall; | |
| 1216 } | |
| 1217 | |
| 1218 /* | |
| 1219 * Set the physical and/or logical colormap of a surface: | |
| 1220 * Only the screen has a physical colormap. It determines what is actually | |
| 1221 * sent to the display. | |
| 1222 * The logical colormap is used to map blits to/from the surface. | |
| 1223 * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL | |
| 1224 * | |
| 1225 * Return nonzero if all colours were set as requested, or 0 otherwise. | |
| 1226 */ | |
| 1227 int SDL_SetPalette(SDL_Surface *screen, int which, | |
| 1228 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1229 { | |
|
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|
1230 SDL_Palette *pal; |
| 0 | 1231 int gotall; |
| 1232 int palsize; | |
| 1233 | |
| 34 | 1234 if ( ! current_video ) { |
| 1235 return 0; | |
| 1236 } | |
| 0 | 1237 if ( screen != SDL_PublicSurface ) { |
|
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|
1238 /* only screens have physical palettes */ |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1239 which &= ~SDL_PHYSPAL; |
| 0 | 1240 } else if( (screen->flags & SDL_HWPALETTE) != SDL_HWPALETTE ) { |
|
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|
1241 /* hardware palettes required for split colormaps */ |
|
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|
1242 which |= SDL_PHYSPAL | SDL_LOGPAL; |
| 0 | 1243 } |
| 1244 | |
| 1245 /* Verify the parameters */ | |
| 1246 pal = screen->format->palette; | |
| 1247 if( !pal ) { | |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1248 return 0; /* not a palettized surface */ |
| 0 | 1249 } |
| 1250 gotall = 1; | |
| 1251 palsize = 1 << screen->format->BitsPerPixel; | |
| 1252 if ( ncolors > (palsize - firstcolor) ) { | |
|
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|
1253 ncolors = (palsize - firstcolor); |
| 0 | 1254 gotall = 0; |
| 1255 } | |
| 1256 | |
| 1257 if ( which & SDL_LOGPAL ) { | |
| 1258 /* | |
| 1259 * Logical palette change: The actual screen isn't affected, | |
| 1260 * but the internal colormap is altered so that the | |
| 1261 * interpretation of the pixel values (for blits etc) is | |
| 1262 * changed. | |
| 1263 */ | |
|
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|
1264 SetPalette_logical(screen, colors, firstcolor, ncolors); |
| 0 | 1265 } |
| 1266 if ( which & SDL_PHYSPAL ) { | |
| 1267 SDL_VideoDevice *video = current_video; | |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1268 /* |
| 0 | 1269 * Physical palette change: This doesn't affect the |
| 1270 * program's idea of what the screen looks like, but changes | |
| 1271 * its actual appearance. | |
| 1272 */ | |
|
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|
1273 if(!video) |
|
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1274 return gotall; /* video not yet initialized */ |
| 0 | 1275 if(!video->physpal && !(which & SDL_LOGPAL) ) { |
| 1276 /* Lazy physical palette allocation */ | |
|
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|
1277 int size; |
| 0 | 1278 SDL_Palette *pp = malloc(sizeof(*pp)); |
| 1279 current_video->physpal = pp; | |
| 1280 pp->ncolors = pal->ncolors; | |
| 1281 size = pp->ncolors * sizeof(SDL_Color); | |
| 1282 pp->colors = malloc(size); | |
| 1283 memcpy(pp->colors, pal->colors, size); | |
| 1284 } | |
| 1285 if ( ! SetPalette_physical(screen, | |
| 1286 colors, firstcolor, ncolors) ) { | |
| 1287 gotall = 0; | |
| 1288 } | |
| 1289 } | |
| 1290 return gotall; | |
| 1291 } | |
| 1292 | |
| 1293 int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor, | |
| 1294 int ncolors) | |
| 1295 { | |
|
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1296 return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, |
| 0 | 1297 colors, firstcolor, ncolors); |
| 1298 } | |
| 1299 | |
| 1300 /* | |
| 1301 * Clean up the video subsystem | |
| 1302 */ | |
| 1303 void SDL_VideoQuit (void) | |
| 1304 { | |
| 1305 SDL_Surface *ready_to_go; | |
| 1306 | |
| 1307 if ( current_video ) { | |
| 1308 SDL_VideoDevice *video = current_video; | |
| 1309 SDL_VideoDevice *this = current_video; | |
| 1310 | |
| 1311 /* Halt event processing before doing anything else */ | |
| 1312 SDL_StopEventLoop(); | |
| 1313 | |
| 1314 /* Clean up allocated window manager items */ | |
| 1315 if ( SDL_PublicSurface ) { | |
| 1316 SDL_PublicSurface = NULL; | |
| 1317 } | |
| 1318 SDL_CursorQuit(); | |
| 1319 | |
| 1320 /* Just in case... */ | |
| 1321 SDL_WM_GrabInputOff(); | |
| 1322 | |
| 1323 /* Clean up the system video */ | |
| 1324 video->VideoQuit(this); | |
| 1325 | |
| 1326 /* Free any lingering surfaces */ | |
| 1327 ready_to_go = SDL_ShadowSurface; | |
| 1328 SDL_ShadowSurface = NULL; | |
| 1329 SDL_FreeSurface(ready_to_go); | |
| 1330 if ( SDL_VideoSurface != NULL ) { | |
| 1331 ready_to_go = SDL_VideoSurface; | |
| 1332 SDL_VideoSurface = NULL; | |
| 1333 SDL_FreeSurface(ready_to_go); | |
| 1334 } | |
| 1335 SDL_PublicSurface = NULL; | |
| 1336 | |
| 1337 /* Clean up miscellaneous memory */ | |
| 1338 if ( video->physpal ) { | |
| 1339 free(video->physpal->colors); | |
| 1340 free(video->physpal); | |
| 1341 video->physpal = NULL; | |
| 1342 } | |
| 1343 if ( video->gammacols ) { | |
| 1344 free(video->gammacols); | |
| 1345 video->gammacols = NULL; | |
| 1346 } | |
| 1347 if ( video->gamma ) { | |
| 1348 free(video->gamma); | |
| 1349 video->gamma = NULL; | |
| 1350 } | |
|
58
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* Removed fullscreen menu option from the "Window" menu
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|
1351 if ( video->wm_title != NULL ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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diff
changeset
|
1352 free(video->wm_title); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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|
1353 video->wm_title = NULL; |
| 0 | 1354 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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diff
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|
1355 if ( video->wm_icon != NULL ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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|
1356 free(video->wm_icon); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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|
1357 video->wm_icon = NULL; |
| 0 | 1358 } |
| 1359 | |
| 1360 /* Finish cleaning up video subsystem */ | |
| 1361 video->free(this); | |
| 1362 current_video = NULL; | |
| 1363 } | |
| 1364 return; | |
| 1365 } | |
| 1366 | |
| 1367 /* Load the GL driver library */ | |
| 1368 int SDL_GL_LoadLibrary(const char *path) | |
| 1369 { | |
| 1370 SDL_VideoDevice *video = current_video; | |
| 1371 SDL_VideoDevice *this = current_video; | |
| 1372 int retval; | |
| 1373 | |
| 1374 retval = -1; | |
|
423
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1375 if ( video == NULL ) { |
|
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More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1376 SDL_SetError("Video subsystem has not been initialized"); |
| 0 | 1377 } else { |
|
423
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More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1378 if ( video->GL_LoadLibrary ) { |
|
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1379 retval = video->GL_LoadLibrary(this, path); |
|
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|
1380 } else { |
|
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1381 SDL_SetError("No dynamic GL support in video driver"); |
|
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|
1382 } |
| 0 | 1383 } |
| 1384 return(retval); | |
| 1385 } | |
| 1386 | |
| 1387 void *SDL_GL_GetProcAddress(const char* proc) | |
| 1388 { | |
| 1389 SDL_VideoDevice *video = current_video; | |
| 1390 SDL_VideoDevice *this = current_video; | |
| 1391 void *func; | |
| 1392 | |
| 1393 func = NULL; | |
| 1394 if ( video->GL_GetProcAddress ) { | |
| 1395 if ( video->gl_config.driver_loaded ) { | |
| 1396 func = video->GL_GetProcAddress(this, proc); | |
| 1397 } else { | |
| 1398 SDL_SetError("No GL driver has been loaded"); | |
| 1399 } | |
| 1400 } else { | |
| 1401 SDL_SetError("No dynamic GL support in video driver"); | |
| 1402 } | |
| 1403 return func; | |
| 1404 } | |
| 1405 | |
| 1406 /* Set the specified GL attribute for setting up a GL video mode */ | |
| 1407 int SDL_GL_SetAttribute( SDL_GLattr attr, int value ) | |
| 1408 { | |
| 1409 int retval; | |
| 1410 SDL_VideoDevice *video = current_video; | |
| 1411 | |
| 1412 retval = 0; | |
| 1413 switch (attr) { | |
| 1414 case SDL_GL_RED_SIZE: | |
| 1415 video->gl_config.red_size = value; | |
| 1416 break; | |
| 1417 case SDL_GL_GREEN_SIZE: | |
| 1418 video->gl_config.green_size = value; | |
| 1419 break; | |
| 1420 case SDL_GL_BLUE_SIZE: | |
| 1421 video->gl_config.blue_size = value; | |
| 1422 break; | |
| 1423 case SDL_GL_ALPHA_SIZE: | |
| 1424 video->gl_config.alpha_size = value; | |
| 1425 break; | |
| 1426 case SDL_GL_DOUBLEBUFFER: | |
| 1427 video->gl_config.double_buffer = value; | |
| 1428 break; | |
|
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|
1429 case SDL_GL_BUFFER_SIZE: |
|
66c02f83f5bf
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|
1430 video->gl_config.buffer_size = value; |
| 0 | 1431 break; |
| 1432 case SDL_GL_DEPTH_SIZE: | |
| 1433 video->gl_config.depth_size = value; | |
| 1434 break; | |
| 1435 case SDL_GL_STENCIL_SIZE: | |
| 1436 video->gl_config.stencil_size = value; | |
| 1437 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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diff
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|
1438 case SDL_GL_ACCUM_RED_SIZE: |
| 0 | 1439 video->gl_config.accum_red_size = value; |
| 1440 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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diff
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|
1441 case SDL_GL_ACCUM_GREEN_SIZE: |
| 0 | 1442 video->gl_config.accum_green_size = value; |
| 1443 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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433
diff
changeset
|
1444 case SDL_GL_ACCUM_BLUE_SIZE: |
| 0 | 1445 video->gl_config.accum_blue_size = value; |
| 1446 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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433
diff
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|
1447 case SDL_GL_ACCUM_ALPHA_SIZE: |
| 0 | 1448 video->gl_config.accum_alpha_size = value; |
| 1449 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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diff
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|
1450 case SDL_GL_STEREO: |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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433
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changeset
|
1451 video->gl_config.stereo = value; |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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|
1452 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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|
1453 case SDL_GL_MULTISAMPLEBUFFERS: |
|
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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|
1454 video->gl_config.multisamplebuffers = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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|
1455 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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|
1456 case SDL_GL_MULTISAMPLESAMPLES: |
|
864e2d2a9a55
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|
1457 video->gl_config.multisamplesamples = value; |
|
655
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Date: Thu, 24 Apr 2003 15:13:47 -0400
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|
1458 break; |
| 0 | 1459 default: |
| 1460 SDL_SetError("Unknown OpenGL attribute"); | |
| 1461 retval = -1; | |
| 1462 break; | |
| 1463 } | |
| 1464 return(retval); | |
| 1465 } | |
| 1466 | |
| 1467 /* Retrieve an attribute value from the windowing system. */ | |
| 1468 int SDL_GL_GetAttribute(SDL_GLattr attr, int* value) | |
| 1469 { | |
| 1470 int retval = -1; | |
| 1471 SDL_VideoDevice* video = current_video; | |
| 1472 SDL_VideoDevice* this = current_video; | |
| 1473 | |
| 1474 if ( video->GL_GetAttribute ) { | |
| 1475 retval = this->GL_GetAttribute(this, attr, value); | |
|
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|
1476 } else { |
|
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|
1477 *value = 0; |
|
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|
1478 SDL_SetError("GL_GetAttribute not supported"); |
| 0 | 1479 } |
| 1480 return retval; | |
| 1481 } | |
| 1482 | |
| 1483 /* Perform a GL buffer swap on the current GL context */ | |
| 1484 void SDL_GL_SwapBuffers(void) | |
| 1485 { | |
| 1486 SDL_VideoDevice *video = current_video; | |
| 1487 SDL_VideoDevice *this = current_video; | |
| 1488 | |
| 1489 if ( video->screen->flags & SDL_OPENGL ) { | |
|
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|
1490 video->GL_SwapBuffers(this); |
|
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1491 } else { |
|
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1492 SDL_SetError("OpenGL video mode has not been set"); |
| 0 | 1493 } |
| 1494 } | |
| 1495 | |
| 1496 /* Update rects with locking */ | |
| 1497 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect *rects) | |
| 1498 { | |
| 1499 SDL_GL_Lock(); | |
| 1500 SDL_GL_UpdateRects(numrects, rects); | |
| 1501 SDL_GL_Unlock(); | |
| 1502 } | |
| 1503 | |
| 1504 /* Update rects without state setting and changing (the caller is responsible for it) */ | |
| 1505 void SDL_GL_UpdateRects(int numrects, SDL_Rect *rects) | |
| 1506 { | |
| 1507 #ifdef HAVE_OPENGL | |
| 1508 SDL_VideoDevice *this = current_video; | |
| 1509 SDL_Rect update, tmp; | |
| 1510 int x, y, i; | |
| 1511 | |
| 1512 for ( i = 0; i < numrects; i++ ) | |
| 1513 { | |
| 1514 tmp.y = rects[i].y; | |
| 1515 tmp.h = rects[i].h; | |
| 1516 for ( y = 0; y <= rects[i].h / 256; y++ ) | |
| 1517 { | |
| 1518 tmp.x = rects[i].x; | |
| 1519 tmp.w = rects[i].w; | |
| 1520 for ( x = 0; x <= rects[i].w / 256; x++ ) | |
| 1521 { | |
| 1522 update.x = tmp.x; | |
| 1523 update.y = tmp.y; | |
| 1524 update.w = tmp.w; | |
| 1525 update.h = tmp.h; | |
| 1526 | |
| 1527 if ( update.w > 256 ) | |
| 1528 update.w = 256; | |
| 1529 | |
| 1530 if ( update.h > 256 ) | |
| 1531 update.h = 256; | |
| 1532 | |
| 1533 this->glFlush(); | |
| 1534 this->glTexSubImage2D( | |
| 1535 GL_TEXTURE_2D, | |
| 1536 0, | |
| 1537 0, | |
| 1538 0, | |
| 1539 update.w, | |
| 1540 update.h, | |
| 1541 this->is_32bit? GL_RGBA : GL_RGB, | |
| 1542 #ifdef GL_VERSION_1_2 | |
| 1543 this->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 1544 #else | |
| 1545 GL_UNSIGNED_BYTE, | |
| 1546 #endif | |
| 1547 (Uint8 *)this->screen->pixels + | |
| 1548 this->screen->format->BytesPerPixel * update.x + | |
| 1549 update.y * this->screen->pitch ); | |
| 1550 | |
| 1551 this->glFlush(); | |
| 1552 /* | |
| 1553 * Note the parens around the function name: | |
| 1554 * This is because some OpenGL implementations define glTexCoord etc | |
| 1555 * as macros, and we don't want them expanded here. | |
| 1556 */ | |
| 1557 this->glBegin(GL_TRIANGLE_STRIP); | |
| 1558 (this->glTexCoord2f)( 0.0, 0.0 ); | |
| 1559 (this->glVertex2i)( update.x, update.y ); | |
| 1560 (this->glTexCoord2f)( (float)(update.w / 256.0), 0.0 ); | |
| 1561 (this->glVertex2i)( update.x + update.w, update.y ); | |
| 1562 (this->glTexCoord2f)( 0.0, (float)(update.h / 256.0) ); | |
| 1563 (this->glVertex2i)( update.x, update.y + update.h ); | |
| 1564 (this->glTexCoord2f)( (float)(update.w / 256.0), (float)(update.h / 256.0) ); | |
| 1565 (this->glVertex2i)( update.x + update.w , update.y + update.h ); | |
| 1566 this->glEnd(); | |
| 1567 | |
| 1568 tmp.x += 256; | |
| 1569 tmp.w -= 256; | |
| 1570 } | |
| 1571 tmp.y += 256; | |
| 1572 tmp.h -= 256; | |
| 1573 } | |
| 1574 } | |
| 1575 #endif | |
| 1576 } | |
| 1577 | |
| 1578 /* Lock == save current state */ | |
| 1579 void SDL_GL_Lock() | |
| 1580 { | |
| 1581 #ifdef HAVE_OPENGL | |
| 1582 lock_count--; | |
| 1583 if (lock_count==-1) | |
| 1584 { | |
| 1585 SDL_VideoDevice *this = current_video; | |
| 1586 | |
| 1587 this->glPushAttrib( GL_ALL_ATTRIB_BITS ); /* TODO: narrow range of what is saved */ | |
|
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1588 #ifdef GL_CLIENT_PIXEL_STORE_BIT |
| 0 | 1589 this->glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT ); |
|
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1590 #endif |
| 0 | 1591 |
| 1592 this->glEnable(GL_TEXTURE_2D); | |
| 1593 this->glEnable(GL_BLEND); | |
| 1594 this->glDisable(GL_FOG); | |
| 1595 this->glDisable(GL_ALPHA_TEST); | |
| 1596 this->glDisable(GL_DEPTH_TEST); | |
| 1597 this->glDisable(GL_SCISSOR_TEST); | |
| 1598 this->glDisable(GL_STENCIL_TEST); | |
| 1599 this->glDisable(GL_CULL_FACE); | |
| 1600 | |
| 1601 this->glBindTexture( GL_TEXTURE_2D, this->texture ); | |
| 1602 this->glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); | |
| 1603 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); | |
| 1604 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); | |
| 1605 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); | |
| 1606 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT ); | |
| 1607 | |
| 1608 this->glPixelStorei( GL_UNPACK_ROW_LENGTH, this->screen->pitch / this->screen->format->BytesPerPixel ); | |
| 1609 this->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
| 1610 (this->glColor4f)(1.0, 1.0, 1.0, 1.0); /* Solaris workaround */ | |
| 1611 | |
| 1612 this->glViewport(0, 0, this->screen->w, this->screen->h); | |
| 1613 this->glMatrixMode(GL_PROJECTION); | |
| 1614 this->glPushMatrix(); | |
| 1615 this->glLoadIdentity(); | |
| 1616 | |
| 1617 this->glOrtho(0.0, (GLdouble) this->screen->w, (GLdouble) this->screen->h, 0.0, 0.0, 1.0); | |
| 1618 | |
| 1619 this->glMatrixMode(GL_MODELVIEW); | |
| 1620 this->glPushMatrix(); | |
| 1621 this->glLoadIdentity(); | |
| 1622 } | |
| 1623 #endif | |
| 1624 } | |
| 1625 | |
| 1626 /* Unlock == restore saved state */ | |
| 1627 void SDL_GL_Unlock() | |
| 1628 { | |
| 1629 #ifdef HAVE_OPENGL | |
| 1630 lock_count++; | |
| 1631 if (lock_count==0) | |
| 1632 { | |
| 1633 SDL_VideoDevice *this = current_video; | |
| 1634 | |
| 1635 this->glPopMatrix(); | |
| 1636 this->glMatrixMode(GL_PROJECTION); | |
| 1637 this->glPopMatrix(); | |
| 1638 | |
| 1639 this->glPopClientAttrib(); | |
| 1640 this->glPopAttrib(); | |
| 1641 } | |
| 1642 #endif | |
| 1643 } | |
| 1644 | |
| 1645 /* | |
| 1646 * Sets/Gets the title and icon text of the display window, if any. | |
| 1647 */ | |
| 1648 void SDL_WM_SetCaption (const char *title, const char *icon) | |
| 1649 { | |
| 1650 SDL_VideoDevice *video = current_video; | |
| 1651 SDL_VideoDevice *this = current_video; | |
| 1652 | |
|
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|
1653 if ( video ) { |
|
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1654 if ( title ) { |
|
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|
1655 if ( video->wm_title ) { |
|
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|
1656 free(video->wm_title); |
|
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1657 } |
|
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|
1658 video->wm_title = (char *)malloc(strlen(title)+1); |
|
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|
1659 if ( video->wm_title != NULL ) { |
|
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|
1660 strcpy(video->wm_title, title); |
|
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|
1661 } |
| 0 | 1662 } |
|
58
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1663 if ( icon ) { |
|
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|
1664 if ( video->wm_icon ) { |
|
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|
1665 free(video->wm_icon); |
|
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|
1666 } |
|
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|
1667 video->wm_icon = (char *)malloc(strlen(icon)+1); |
|
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|
1668 if ( video->wm_icon != NULL ) { |
|
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|
1669 strcpy(video->wm_icon, icon); |
|
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|
1670 } |
| 0 | 1671 } |
|
58
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|
1672 if ( (title || icon) && (video->SetCaption != NULL) ) { |
|
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|
1673 video->SetCaption(this, video->wm_title,video->wm_icon); |
| 0 | 1674 } |
| 1675 } | |
| 1676 } | |
| 1677 void SDL_WM_GetCaption (char **title, char **icon) | |
| 1678 { | |
|
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|
1679 SDL_VideoDevice *video = current_video; |
|
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|
1680 |
|
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|
1681 if ( video ) { |
|
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1682 if ( title ) { |
|
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|
1683 *title = video->wm_title; |
|
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1684 } |
|
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1685 if ( icon ) { |
|
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|
1686 *icon = video->wm_icon; |
|
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|
1687 } |
| 0 | 1688 } |
| 1689 } | |
| 1690 | |
|
541
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|
1691 /* Utility function used by SDL_WM_SetIcon(); |
|
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1692 * flags & 1 for color key, flags & 2 for alpha channel. */ |
|
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1693 static void CreateMaskFromColorKeyOrAlpha(SDL_Surface *icon, Uint8 *mask, int flags) |
| 0 | 1694 { |
| 1695 int x, y; | |
| 1696 Uint32 colorkey; | |
| 1697 #define SET_MASKBIT(icon, x, y, mask) \ | |
| 1698 mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8))) | |
| 1699 | |
| 1700 colorkey = icon->format->colorkey; | |
| 1701 switch (icon->format->BytesPerPixel) { | |
| 1702 case 1: { Uint8 *pixels; | |
| 1703 for ( y=0; y<icon->h; ++y ) { | |
| 1704 pixels = (Uint8 *)icon->pixels + y*icon->pitch; | |
| 1705 for ( x=0; x<icon->w; ++x ) { | |
| 1706 if ( *pixels++ == colorkey ) { | |
| 1707 SET_MASKBIT(icon, x, y, mask); | |
| 1708 } | |
| 1709 } | |
| 1710 } | |
| 1711 } | |
| 1712 break; | |
| 1713 | |
| 1714 case 2: { Uint16 *pixels; | |
| 1715 for ( y=0; y<icon->h; ++y ) { | |
| 1716 pixels = (Uint16 *)icon->pixels + | |
| 1717 y*icon->pitch/2; | |
| 1718 for ( x=0; x<icon->w; ++x ) { | |
|
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1719 if ( (flags & 1) && *pixels == colorkey ) { |
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1720 SET_MASKBIT(icon, x, y, mask); |
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1721 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1722 SET_MASKBIT(icon, x, y, mask); |
| 1723 } | |
|
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1724 pixels++; |
| 0 | 1725 } |
| 1726 } | |
| 1727 } | |
| 1728 break; | |
| 1729 | |
| 1730 case 4: { Uint32 *pixels; | |
| 1731 for ( y=0; y<icon->h; ++y ) { | |
| 1732 pixels = (Uint32 *)icon->pixels + | |
| 1733 y*icon->pitch/4; | |
| 1734 for ( x=0; x<icon->w; ++x ) { | |
|
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1735 if ( (flags & 1) && *pixels == colorkey ) { |
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1736 SET_MASKBIT(icon, x, y, mask); |
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1737 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1738 SET_MASKBIT(icon, x, y, mask); |
| 1739 } | |
|
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|
1740 pixels++; |
| 0 | 1741 } |
| 1742 } | |
| 1743 } | |
| 1744 break; | |
| 1745 } | |
| 1746 } | |
| 1747 | |
| 1748 /* | |
| 1749 * Sets the window manager icon for the display window. | |
| 1750 */ | |
| 1751 void SDL_WM_SetIcon (SDL_Surface *icon, Uint8 *mask) | |
| 1752 { | |
| 1753 SDL_VideoDevice *video = current_video; | |
| 1754 SDL_VideoDevice *this = current_video; | |
| 1755 | |
| 1756 if ( icon && video->SetIcon ) { | |
| 1757 /* Generate a mask if necessary, and create the icon! */ | |
| 1758 if ( mask == NULL ) { | |
| 1759 int mask_len = icon->h*(icon->w+7)/8; | |
|
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1760 int flags = 0; |
| 0 | 1761 mask = (Uint8 *)malloc(mask_len); |
| 1762 if ( mask == NULL ) { | |
| 1763 return; | |
| 1764 } | |
| 1765 memset(mask, ~0, mask_len); | |
|
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1766 if ( icon->flags & SDL_SRCCOLORKEY ) flags |= 1; |
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1767 if ( icon->flags & SDL_SRCALPHA ) flags |= 2; |
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1768 if( flags ) { |
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|
1769 CreateMaskFromColorKeyOrAlpha(icon, mask, flags); |
| 0 | 1770 } |
| 1771 video->SetIcon(video, icon, mask); | |
| 1772 free(mask); | |
| 1773 } else { | |
| 1774 video->SetIcon(this, icon, mask); | |
| 1775 } | |
| 1776 } | |
| 1777 } | |
| 1778 | |
| 1779 /* | |
| 1780 * Grab or ungrab the keyboard and mouse input. | |
| 1781 * This function returns the final grab mode after calling the | |
| 1782 * driver dependent function. | |
| 1783 */ | |
| 1784 static SDL_GrabMode SDL_WM_GrabInputRaw(SDL_GrabMode mode) | |
| 1785 { | |
| 1786 SDL_VideoDevice *video = current_video; | |
| 1787 SDL_VideoDevice *this = current_video; | |
| 1788 | |
| 1789 /* Only do something if we have support for grabs */ | |
| 1790 if ( video->GrabInput == NULL ) { | |
| 1791 return(video->input_grab); | |
| 1792 } | |
| 1793 | |
| 1794 /* If the final grab mode if off, only then do we actually grab */ | |
| 1795 #ifdef DEBUG_GRAB | |
| 1796 printf("SDL_WM_GrabInputRaw(%d) ... ", mode); | |
| 1797 #endif | |
| 1798 if ( mode == SDL_GRAB_OFF ) { | |
| 1799 if ( video->input_grab != SDL_GRAB_OFF ) { | |
| 1800 mode = video->GrabInput(this, mode); | |
| 1801 } | |
| 1802 } else { | |
| 1803 if ( video->input_grab == SDL_GRAB_OFF ) { | |
| 1804 mode = video->GrabInput(this, mode); | |
| 1805 } | |
| 1806 } | |
| 1807 if ( mode != video->input_grab ) { | |
| 1808 video->input_grab = mode; | |
| 1809 if ( video->CheckMouseMode ) { | |
| 1810 video->CheckMouseMode(this); | |
| 1811 } | |
| 1812 } | |
| 1813 #ifdef DEBUG_GRAB | |
| 1814 printf("Final mode %d\n", video->input_grab); | |
| 1815 #endif | |
| 1816 | |
| 1817 /* Return the final grab state */ | |
| 1818 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1819 mode -= SDL_GRAB_FULLSCREEN; | |
| 1820 } | |
| 1821 return(mode); | |
| 1822 } | |
| 1823 SDL_GrabMode SDL_WM_GrabInput(SDL_GrabMode mode) | |
| 1824 { | |
| 1825 SDL_VideoDevice *video = current_video; | |
| 1826 | |
|
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1827 /* If the video isn't initialized yet, we can't do anything */ |
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1828 if ( ! video ) { |
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1829 return SDL_GRAB_OFF; |
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parents:
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1830 } |
| 0 | 1831 |
| 1832 /* Return the current mode on query */ | |
| 1833 if ( mode == SDL_GRAB_QUERY ) { | |
| 1834 mode = video->input_grab; | |
| 1835 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1836 mode -= SDL_GRAB_FULLSCREEN; | |
| 1837 } | |
| 1838 return(mode); | |
| 1839 } | |
| 1840 | |
| 1841 #ifdef DEBUG_GRAB | |
| 1842 printf("SDL_WM_GrabInput(%d) ... ", mode); | |
| 1843 #endif | |
| 1844 /* If the video surface is fullscreen, we always grab */ | |
| 1845 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1846 mode -= SDL_GRAB_FULLSCREEN; | |
| 1847 } | |
| 1848 if ( SDL_VideoSurface && (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { | |
| 1849 mode += SDL_GRAB_FULLSCREEN; | |
| 1850 } | |
| 1851 return(SDL_WM_GrabInputRaw(mode)); | |
| 1852 } | |
| 1853 static SDL_GrabMode SDL_WM_GrabInputOff(void) | |
| 1854 { | |
| 1855 SDL_GrabMode mode; | |
| 1856 | |
| 1857 /* First query the current grab state */ | |
| 1858 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 1859 | |
| 1860 /* Now explicitly turn off input grab */ | |
| 1861 SDL_WM_GrabInputRaw(SDL_GRAB_OFF); | |
| 1862 | |
| 1863 /* Return the old state */ | |
| 1864 return(mode); | |
| 1865 } | |
| 1866 | |
| 1867 /* | |
| 1868 * Iconify the window in window managed environments. | |
| 1869 * A successful iconification will result in an SDL_APPACTIVE loss event. | |
| 1870 */ | |
| 1871 int SDL_WM_IconifyWindow(void) | |
| 1872 { | |
| 1873 SDL_VideoDevice *video = current_video; | |
| 1874 SDL_VideoDevice *this = current_video; | |
| 1875 int retval; | |
| 1876 | |
| 1877 retval = 0; | |
| 1878 if ( video->IconifyWindow ) { | |
| 1879 retval = video->IconifyWindow(this); | |
| 1880 } | |
| 1881 return(retval); | |
| 1882 } | |
| 1883 | |
| 1884 /* | |
| 1885 * Toggle fullscreen mode | |
| 1886 */ | |
| 1887 int SDL_WM_ToggleFullScreen(SDL_Surface *surface) | |
| 1888 { | |
| 1889 SDL_VideoDevice *video = current_video; | |
| 1890 SDL_VideoDevice *this = current_video; | |
| 1891 int toggled; | |
| 1892 | |
| 1893 toggled = 0; | |
| 1894 if ( SDL_PublicSurface && (surface == SDL_PublicSurface) && | |
| 1895 video->ToggleFullScreen ) { | |
| 1896 if ( surface->flags & SDL_FULLSCREEN ) { | |
| 1897 toggled = video->ToggleFullScreen(this, 0); | |
| 1898 if ( toggled ) { | |
| 1899 SDL_VideoSurface->flags &= ~SDL_FULLSCREEN; | |
| 1900 SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; | |
| 1901 } | |
| 1902 } else { | |
| 1903 toggled = video->ToggleFullScreen(this, 1); | |
| 1904 if ( toggled ) { | |
| 1905 SDL_VideoSurface->flags |= SDL_FULLSCREEN; | |
| 1906 SDL_PublicSurface->flags |= SDL_FULLSCREEN; | |
| 1907 } | |
| 1908 } | |
| 1909 /* Double-check the grab state inside SDL_WM_GrabInput() */ | |
| 1910 if ( toggled ) { | |
| 1911 SDL_WM_GrabInput(video->input_grab); | |
| 1912 } | |
| 1913 } | |
| 1914 return(toggled); | |
| 1915 } | |
| 1916 | |
| 1917 /* | |
| 1918 * Get some platform dependent window manager information | |
| 1919 */ | |
| 1920 int SDL_GetWMInfo (SDL_SysWMinfo *info) | |
| 1921 { | |
| 1922 SDL_VideoDevice *video = current_video; | |
| 1923 SDL_VideoDevice *this = current_video; | |
| 1924 | |
| 1925 if ( video && video->GetWMInfo ) { | |
| 1926 return(video->GetWMInfo(this, info)); | |
| 1927 } else { | |
| 1928 return(0); | |
| 1929 } | |
| 1930 } |