Mercurial > sdl-ios-xcode
annotate src/video/SDL_video.c @ 821:30168104389f
Date: Sat, 14 Feb 2004 14:52:40 +0200
From: "Mike Gorchak"
Subject: Batch of the QNX6 fixes for the SDL
1. Updated readme.QNX
2. Fixed crashes during intensive window updating under fast machines (got over 200 rectangles for update).
3. Fixed double-buffered fullscreen modes, now it works as needed.
4. Fixed Photon detection algorithm.
5. Fixed HWSURFACE update function.
6. Added SDL_PHOTON_FULLSCREEN_REFRESH environment variable support for control refresh rates under Photon.
7. Added 640x400 fullscreen mode emulation via 640x480 (if videodriver not supports original 640x400 mode of course) shifted by 40 vertical pixels from begin, to center it. It's needed for some old DOS games which ran in doubled 320x200 mode.
8. Added available video ram amount support.
8. Added hardware surface allocation/deallocation support if current videomode and videodriver supports it.
9. Added hardware filling support.
10. Added hardware blits support (simple and colorkeyed).
And I've added to testvidinfo test color-keyed blits benchmark (maybe need to add alpha blits benchmark too ?). Currently Photon not supporting any alpha hardware blittings (all drivers lack of alpha blitting code support, only software alpha blitting exist in photon, which is hundreds times slowest than the SDL's one). So I've not added the alpha support. I suppose new QNX 6.3 will have the hardware alpha support, so when it will be done, I'll add alpha support.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 14 Feb 2004 20:22:21 +0000 |
| parents | b8d311d90021 |
| children | dddfc37e1f65 |
| 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 | |
| 362 int SDL_VideoModeOK (int width, int height, int bpp, Uint32 flags) | |
| 363 { | |
| 364 int table, b, i; | |
| 365 int supported; | |
| 366 SDL_PixelFormat format; | |
| 367 SDL_Rect **sizes; | |
| 368 | |
| 369 /* Currently 1 and 4 bpp are not supported */ | |
| 370 if ( bpp < 8 || bpp > 32 ) { | |
| 371 return(0); | |
| 372 } | |
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373 if ( (width <= 0) || (height <= 0) ) { |
| 0 | 374 return(0); |
| 375 } | |
| 376 | |
| 377 /* Search through the list valid of modes */ | |
| 378 memset(&format, 0, sizeof(format)); | |
| 379 supported = 0; | |
| 380 table = ((bpp+7)/8)-1; | |
| 381 SDL_closest_depths[table][0] = bpp; | |
| 382 SDL_closest_depths[table][7] = 0; | |
| 383 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 384 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 385 sizes = SDL_ListModes(&format, flags); | |
| 386 if ( sizes == (SDL_Rect **)0 ) { | |
| 387 /* No sizes supported at this bit-depth */ | |
| 388 continue; | |
| 389 } else | |
| 390 #ifdef macintosh /* MPW optimization bug? */ | |
| 391 if ( (sizes == (SDL_Rect **)0xFFFFFFFF) || | |
| 392 #else | |
| 393 if ( (sizes == (SDL_Rect **)-1) || | |
| 394 #endif | |
| 395 current_video->handles_any_size ) { | |
| 396 /* Any size supported at this bit-depth */ | |
| 397 supported = 1; | |
| 398 continue; | |
| 399 } else | |
| 400 for ( i=0; sizes[i]; ++i ) { | |
| 401 if ((sizes[i]->w == width) && (sizes[i]->h == height)) { | |
| 402 supported = 1; | |
| 403 break; | |
| 404 } | |
| 405 } | |
| 406 } | |
| 407 if ( supported ) { | |
| 408 --b; | |
| 409 return(SDL_closest_depths[table][b]); | |
| 410 } else { | |
| 411 return(0); | |
| 412 } | |
| 413 } | |
| 414 | |
| 415 /* | |
| 416 * Get the closest non-emulated video mode to the one requested | |
| 417 */ | |
| 418 static int SDL_GetVideoMode (int *w, int *h, int *BitsPerPixel, Uint32 flags) | |
| 419 { | |
| 420 int table, b, i; | |
| 421 int supported; | |
| 422 int native_bpp; | |
| 423 SDL_PixelFormat format; | |
| 424 SDL_Rect **sizes; | |
| 425 | |
|
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426 /* Check parameters */ |
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427 if ( *BitsPerPixel < 8 || *BitsPerPixel > 32 ) { |
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428 SDL_SetError("Invalid bits per pixel (range is {8...32})"); |
|
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429 return(0); |
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430 } |
|
430
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431 if ((*w <= 0) || (*h <= 0)) { |
|
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432 SDL_SetError("Invalid width or height"); |
|
430
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433 return(0); |
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Make sure width and height passed to SDL_GetVideoMode() are sane.
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434 } |
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435 |
| 0 | 436 /* Try the original video mode, get the closest depth */ |
| 437 native_bpp = SDL_VideoModeOK(*w, *h, *BitsPerPixel, flags); | |
| 438 if ( native_bpp == *BitsPerPixel ) { | |
| 439 return(1); | |
| 440 } | |
| 441 if ( native_bpp > 0 ) { | |
| 442 *BitsPerPixel = native_bpp; | |
| 443 return(1); | |
| 444 } | |
| 445 | |
| 446 /* No exact size match at any depth, look for closest match */ | |
| 447 memset(&format, 0, sizeof(format)); | |
| 448 supported = 0; | |
| 449 table = ((*BitsPerPixel+7)/8)-1; | |
| 450 SDL_closest_depths[table][0] = *BitsPerPixel; | |
| 451 SDL_closest_depths[table][7] = SDL_VideoSurface->format->BitsPerPixel; | |
| 452 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 453 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 454 sizes = SDL_ListModes(&format, flags); | |
| 455 if ( sizes == (SDL_Rect **)0 ) { | |
| 456 /* No sizes supported at this bit-depth */ | |
| 457 continue; | |
| 458 } | |
| 459 for ( i=0; sizes[i]; ++i ) { | |
| 460 if ((sizes[i]->w < *w) || (sizes[i]->h < *h)) { | |
| 461 if ( i > 0 ) { | |
| 462 --i; | |
| 463 *w = sizes[i]->w; | |
| 464 *h = sizes[i]->h; | |
| 465 *BitsPerPixel = SDL_closest_depths[table][b]; | |
| 466 supported = 1; | |
| 467 } else { | |
| 468 /* Largest mode too small... */; | |
| 469 } | |
| 470 break; | |
| 471 } | |
| 472 } | |
| 473 if ( (i > 0) && ! sizes[i] ) { | |
| 474 /* The smallest mode was larger than requested, OK */ | |
| 475 --i; | |
| 476 *w = sizes[i]->w; | |
| 477 *h = sizes[i]->h; | |
| 478 *BitsPerPixel = SDL_closest_depths[table][b]; | |
| 479 supported = 1; | |
| 480 } | |
| 481 } | |
| 482 if ( ! supported ) { | |
| 483 SDL_SetError("No video mode large enough for %dx%d", *w, *h); | |
| 484 } | |
| 485 return(supported); | |
| 486 } | |
| 487 | |
| 488 /* This should probably go somewhere else -- like SDL_surface.c */ | |
| 489 static void SDL_ClearSurface(SDL_Surface *surface) | |
| 490 { | |
| 491 Uint32 black; | |
| 492 | |
| 493 black = SDL_MapRGB(surface->format, 0, 0, 0); | |
| 494 SDL_FillRect(surface, NULL, black); | |
| 495 if ((surface->flags&SDL_HWSURFACE) && (surface->flags&SDL_DOUBLEBUF)) { | |
| 496 SDL_Flip(surface); | |
| 497 SDL_FillRect(surface, NULL, black); | |
| 498 } | |
| 499 SDL_Flip(surface); | |
| 500 } | |
| 501 | |
| 502 /* | |
| 503 * Create a shadow surface suitable for fooling the app. :-) | |
| 504 */ | |
| 505 static void SDL_CreateShadowSurface(int depth) | |
| 506 { | |
| 507 Uint32 Rmask, Gmask, Bmask; | |
| 508 | |
| 509 /* Allocate the shadow surface */ | |
| 510 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 511 Rmask = (SDL_VideoSurface->format)->Rmask; | |
| 512 Gmask = (SDL_VideoSurface->format)->Gmask; | |
| 513 Bmask = (SDL_VideoSurface->format)->Bmask; | |
| 514 } else { | |
| 515 Rmask = Gmask = Bmask = 0; | |
| 516 } | |
| 517 SDL_ShadowSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
| 518 SDL_VideoSurface->w, SDL_VideoSurface->h, | |
| 519 depth, Rmask, Gmask, Bmask, 0); | |
| 520 if ( SDL_ShadowSurface == NULL ) { | |
| 521 return; | |
| 522 } | |
| 523 | |
| 524 /* 8-bit shadow surfaces report that they have exclusive palette */ | |
| 525 if ( SDL_ShadowSurface->format->palette ) { | |
| 526 SDL_ShadowSurface->flags |= SDL_HWPALETTE; | |
| 527 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 528 memcpy(SDL_ShadowSurface->format->palette->colors, | |
| 529 SDL_VideoSurface->format->palette->colors, | |
| 530 SDL_VideoSurface->format->palette->ncolors* | |
| 531 sizeof(SDL_Color)); | |
| 532 } else { | |
| 533 SDL_DitherColors( | |
| 534 SDL_ShadowSurface->format->palette->colors, depth); | |
| 535 } | |
| 536 } | |
| 537 | |
| 538 /* If the video surface is resizable, the shadow should say so */ | |
| 539 if ( (SDL_VideoSurface->flags & SDL_RESIZABLE) == SDL_RESIZABLE ) { | |
| 540 SDL_ShadowSurface->flags |= SDL_RESIZABLE; | |
| 541 } | |
| 542 /* If the video surface has no frame, the shadow should say so */ | |
| 543 if ( (SDL_VideoSurface->flags & SDL_NOFRAME) == SDL_NOFRAME ) { | |
| 544 SDL_ShadowSurface->flags |= SDL_NOFRAME; | |
| 545 } | |
| 546 /* If the video surface is fullscreen, the shadow should say so */ | |
| 547 if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 548 SDL_ShadowSurface->flags |= SDL_FULLSCREEN; | |
| 549 } | |
| 550 /* If the video surface is flippable, the shadow should say so */ | |
| 551 if ( (SDL_VideoSurface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 552 SDL_ShadowSurface->flags |= SDL_DOUBLEBUF; | |
| 553 } | |
| 554 return; | |
| 555 } | |
| 556 | |
| 557 /* | |
| 558 * Set the requested video mode, allocating a shadow buffer if necessary. | |
| 559 */ | |
| 560 SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags) | |
| 561 { | |
| 562 SDL_VideoDevice *video, *this; | |
| 563 SDL_Surface *prev_mode, *mode; | |
| 564 int video_w; | |
| 565 int video_h; | |
| 566 int video_bpp; | |
| 567 int is_opengl; | |
| 568 SDL_GrabMode saved_grab; | |
| 569 | |
| 570 /* Start up the video driver, if necessary.. | |
| 571 WARNING: This is the only function protected this way! | |
| 572 */ | |
| 573 if ( ! current_video ) { | |
| 574 if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE) < 0 ) { | |
| 575 return(NULL); | |
| 576 } | |
| 577 } | |
| 578 this = video = current_video; | |
| 579 | |
| 580 /* Default to the current video bpp */ | |
| 581 if ( bpp == 0 ) { | |
| 582 flags |= SDL_ANYFORMAT; | |
| 583 bpp = SDL_VideoSurface->format->BitsPerPixel; | |
| 584 } | |
| 585 | |
| 586 /* Get a good video mode, the closest one possible */ | |
| 587 video_w = width; | |
| 588 video_h = height; | |
| 589 video_bpp = bpp; | |
| 590 if ( ! SDL_GetVideoMode(&video_w, &video_h, &video_bpp, flags) ) { | |
| 591 return(NULL); | |
| 592 } | |
| 593 | |
| 594 /* Check the requested flags */ | |
| 595 /* There's no palette in > 8 bits-per-pixel mode */ | |
| 596 if ( video_bpp > 8 ) { | |
| 597 flags &= ~SDL_HWPALETTE; | |
| 598 } | |
| 599 #if 0 | |
| 600 if ( (flags&SDL_FULLSCREEN) != SDL_FULLSCREEN ) { | |
| 601 /* There's no windowed double-buffering */ | |
| 602 flags &= ~SDL_DOUBLEBUF; | |
| 603 } | |
| 604 #endif | |
| 605 if ( (flags&SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 606 /* Use hardware surfaces when double-buffering */ | |
| 607 flags |= SDL_HWSURFACE; | |
| 608 } | |
| 609 | |
| 610 is_opengl = ( ( flags & SDL_OPENGL ) == SDL_OPENGL ); | |
| 611 if ( is_opengl ) { | |
| 612 /* These flags are for 2D video modes only */ | |
| 613 flags &= ~(SDL_HWSURFACE|SDL_DOUBLEBUF); | |
| 614 } | |
| 615 | |
|
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Fixed stuck keys when changing the video mode
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616 /* Reset the keyboard here so event callbacks can run */ |
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617 SDL_ResetKeyboard(); |
|
460
a888b3ae31ff
Reset mouse state when changing video modes
Sam Lantinga <slouken@libsdl.org>
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618 SDL_ResetMouse(); |
|
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Fixed stuck keys when changing the video mode
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619 |
| 0 | 620 /* Clean up any previous video mode */ |
| 621 if ( SDL_PublicSurface != NULL ) { | |
| 622 SDL_PublicSurface = NULL; | |
| 623 } | |
| 624 if ( SDL_ShadowSurface != NULL ) { | |
| 625 SDL_Surface *ready_to_go; | |
| 626 ready_to_go = SDL_ShadowSurface; | |
| 627 SDL_ShadowSurface = NULL; | |
| 628 SDL_FreeSurface(ready_to_go); | |
| 629 } | |
| 630 if ( video->physpal ) { | |
| 631 free(video->physpal->colors); | |
| 632 free(video->physpal); | |
| 633 video->physpal = NULL; | |
| 634 } | |
| 635 if( video->gammacols) { | |
|
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|
636 free(video->gammacols); |
| 0 | 637 video->gammacols = NULL; |
| 638 } | |
| 639 | |
| 640 /* Save the previous grab state and turn off grab for mode switch */ | |
| 641 saved_grab = SDL_WM_GrabInputOff(); | |
| 642 | |
| 643 /* Try to set the video mode, along with offset and clipping */ | |
| 644 prev_mode = SDL_VideoSurface; | |
| 645 SDL_LockCursor(); | |
| 646 SDL_VideoSurface = NULL; /* In case it's freed by driver */ | |
| 647 mode = video->SetVideoMode(this, prev_mode,video_w,video_h,video_bpp,flags); | |
| 648 if ( mode ) { /* Prevent resize events from mode change */ | |
| 649 SDL_PrivateResize(mode->w, mode->h); | |
|
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Fix a crash if an OpenGL video mode can't be set.
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650 |
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Fix a crash if an OpenGL video mode can't be set.
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651 /* Sam - If we asked for OpenGL mode, and didn't get it, fail */ |
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652 if ( is_opengl && !(mode->flags & SDL_OPENGL) ) { |
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653 mode = NULL; |
|
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654 } |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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655 } |
| 0 | 656 /* |
| 657 * rcg11292000 | |
| 658 * If you try to set an SDL_OPENGL surface, and fail to find a | |
| 659 * matching visual, then the next call to SDL_SetVideoMode() | |
| 660 * will segfault, since we no longer point to a dummy surface, | |
| 661 * but rather NULL. | |
| 662 * Sam 11/29/00 | |
| 663 * WARNING, we need to make sure that the previous mode hasn't | |
| 664 * already been freed by the video driver. What do we do in | |
| 665 * that case? Should we call SDL_VideoInit() again? | |
| 666 */ | |
| 667 SDL_VideoSurface = (mode != NULL) ? mode : prev_mode; | |
| 668 | |
| 669 if ( (mode != NULL) && (!is_opengl) ) { | |
| 670 /* Sanity check */ | |
| 671 if ( (mode->w < width) || (mode->h < height) ) { | |
| 672 SDL_SetError("Video mode smaller than requested"); | |
| 673 return(NULL); | |
| 674 } | |
| 675 | |
| 676 /* If we have a palettized surface, create a default palette */ | |
| 677 if ( mode->format->palette ) { | |
|
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678 SDL_PixelFormat *vf = mode->format; |
| 0 | 679 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 680 video->SetColors(this, 0, vf->palette->ncolors, | |
| 681 vf->palette->colors); | |
| 682 } | |
| 683 | |
| 684 /* Clear the surface to black */ | |
| 685 video->offset_x = 0; | |
| 686 video->offset_y = 0; | |
| 687 mode->offset = 0; | |
| 688 SDL_SetClipRect(mode, NULL); | |
| 689 SDL_ClearSurface(mode); | |
| 690 | |
| 691 /* Now adjust the offsets to match the desired mode */ | |
| 692 video->offset_x = (mode->w-width)/2; | |
| 693 video->offset_y = (mode->h-height)/2; | |
| 694 mode->offset = video->offset_y*mode->pitch + | |
| 695 video->offset_x*mode->format->BytesPerPixel; | |
| 696 #ifdef DEBUG_VIDEO | |
| 697 fprintf(stderr, | |
| 698 "Requested mode: %dx%dx%d, obtained mode %dx%dx%d (offset %d)\n", | |
| 699 width, height, bpp, | |
| 700 mode->w, mode->h, mode->format->BitsPerPixel, mode->offset); | |
| 701 #endif | |
| 702 mode->w = width; | |
| 703 mode->h = height; | |
| 704 SDL_SetClipRect(mode, NULL); | |
| 705 } | |
| 706 SDL_ResetCursor(); | |
| 707 SDL_UnlockCursor(); | |
| 708 | |
| 709 /* If we failed setting a video mode, return NULL... (Uh Oh!) */ | |
| 710 if ( mode == NULL ) { | |
| 711 return(NULL); | |
| 712 } | |
| 713 | |
| 714 /* If there is no window manager, set the SDL_NOFRAME flag */ | |
| 715 if ( ! video->info.wm_available ) { | |
| 716 mode->flags |= SDL_NOFRAME; | |
| 717 } | |
| 718 | |
| 719 /* Reset the mouse cursor and grab for new video mode */ | |
| 720 SDL_SetCursor(NULL); | |
| 721 if ( video->UpdateMouse ) { | |
| 722 video->UpdateMouse(this); | |
| 723 } | |
| 724 SDL_WM_GrabInput(saved_grab); | |
| 725 SDL_GetRelativeMouseState(NULL, NULL); /* Clear first large delta */ | |
| 726 | |
|
650
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We need to lookup the address of glGetString before calling GL_MakeCurrent(),
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diff
changeset
|
727 #ifdef HAVE_OPENGL |
|
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
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|
728 /* 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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diff
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|
729 if ( flags & (SDL_OPENGL | SDL_OPENGLBLIT) ) { |
|
663
8bedd6d61642
Date: Sat, 2 Aug 2003 16:22:51 +0300
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|
730 #ifndef __QNXNTO__ |
|
650
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
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|
731 #define SDL_PROC(ret,func,params) \ |
|
fe445b59d307
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732 do { \ |
|
fe445b59d307
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|
733 video->func = SDL_GL_GetProcAddress(#func); \ |
|
fe445b59d307
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734 if ( ! video->func ) { \ |
|
fe445b59d307
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735 SDL_SetError("Couldn't load GL function: %s\n", #func); \ |
|
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736 return(NULL); \ |
|
fe445b59d307
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737 } \ |
|
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|
738 } while ( 0 ); |
|
663
8bedd6d61642
Date: Sat, 2 Aug 2003 16:22:51 +0300
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|
739 #else |
|
8bedd6d61642
Date: Sat, 2 Aug 2003 16:22:51 +0300
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|
740 #define SDL_PROC(ret,func,params) video->func=func; |
|
8bedd6d61642
Date: Sat, 2 Aug 2003 16:22:51 +0300
Sam Lantinga <slouken@libsdl.org>
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|
741 #endif /* __QNXNTO__ */ |
|
650
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
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diff
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|
742 #include "SDL_glfuncs.h" |
|
fe445b59d307
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|
743 #undef SDL_PROC |
|
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
Ryan C. Gordon <icculus@icculus.org>
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|
744 } |
|
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
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|
745 #endif |
|
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
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diff
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|
746 |
| 0 | 747 /* If we're running OpenGL, make the context current */ |
| 748 if ( (video->screen->flags & SDL_OPENGL) && | |
| 749 video->GL_MakeCurrent ) { | |
| 750 if ( video->GL_MakeCurrent(this) < 0 ) { | |
| 751 return(NULL); | |
| 752 } | |
| 753 } | |
| 754 | |
| 755 /* Set up a fake SDL surface for OpenGL "blitting" */ | |
| 756 if ( (flags & SDL_OPENGLBLIT) == SDL_OPENGLBLIT ) { | |
| 757 /* Load GL functions for performing the texture updates */ | |
| 758 #ifdef HAVE_OPENGL | |
| 759 | |
| 760 /* Create a software surface for blitting */ | |
| 761 #ifdef GL_VERSION_1_2 | |
| 762 /* If the implementation either supports the packed pixels | |
| 763 extension, or implements the core OpenGL 1.2 API, it will | |
| 764 support the GL_UNSIGNED_SHORT_5_6_5 texture format. | |
| 765 */ | |
| 766 if ( (bpp == 16) && | |
|
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767 (strstr((const char *)video->glGetString(GL_EXTENSIONS), "GL_EXT_packed_pixels") || |
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768 (atof((const char *)video->glGetString(GL_VERSION)) >= 1.2f)) |
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769 ) { |
| 0 | 770 video->is_32bit = 0; |
| 771 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 772 flags, | |
| 773 width, | |
| 774 height, | |
| 775 16, | |
| 776 31 << 11, | |
| 777 63 << 5, | |
| 778 31, | |
| 779 0 | |
| 780 ); | |
| 781 } | |
| 782 else | |
| 783 #endif /* OpenGL 1.2 */ | |
| 784 { | |
| 785 video->is_32bit = 1; | |
| 786 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 787 flags, | |
| 788 width, | |
| 789 height, | |
| 790 32, | |
| 791 #if SDL_BYTEORDER == SDL_LIL_ENDIAN | |
| 792 0x000000FF, | |
| 793 0x0000FF00, | |
| 794 0x00FF0000, | |
| 795 0xFF000000 | |
| 796 #else | |
| 797 0xFF000000, | |
| 798 0x00FF0000, | |
| 799 0x0000FF00, | |
| 800 0x000000FF | |
| 801 #endif | |
| 802 ); | |
| 803 } | |
| 804 if ( ! SDL_VideoSurface ) { | |
| 805 return(NULL); | |
| 806 } | |
| 807 SDL_VideoSurface->flags = mode->flags | SDL_OPENGLBLIT; | |
| 808 | |
| 809 /* Free the original video mode surface (is this safe?) */ | |
| 810 SDL_FreeSurface(mode); | |
| 811 | |
|
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812 /* Set the surface completely opaque & white by default */ |
| 0 | 813 memset( SDL_VideoSurface->pixels, 255, SDL_VideoSurface->h * SDL_VideoSurface->pitch ); |
| 814 video->glGenTextures( 1, &video->texture ); | |
| 815 video->glBindTexture( GL_TEXTURE_2D, video->texture ); | |
| 816 video->glTexImage2D( | |
| 817 GL_TEXTURE_2D, | |
| 818 0, | |
| 819 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 820 256, | |
| 821 256, | |
| 822 0, | |
| 823 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 824 #ifdef GL_VERSION_1_2 | |
| 825 video->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 826 #else | |
| 827 GL_UNSIGNED_BYTE, | |
| 828 #endif | |
| 829 NULL); | |
| 830 | |
| 831 video->UpdateRects = SDL_GL_UpdateRectsLock; | |
| 832 #else | |
| 833 SDL_SetError("Somebody forgot to #define HAVE_OPENGL"); | |
| 834 return(NULL); | |
| 835 #endif | |
| 836 } | |
| 837 | |
| 838 /* Create a shadow surface if necessary */ | |
| 839 /* There are three conditions under which we create a shadow surface: | |
| 840 1. We need a particular bits-per-pixel that we didn't get. | |
| 841 2. We need a hardware palette and didn't get one. | |
| 842 3. We need a software surface and got a hardware surface. | |
| 843 */ | |
| 844 if ( !(SDL_VideoSurface->flags & SDL_OPENGL) && | |
| 845 ( | |
| 846 ( !(flags&SDL_ANYFORMAT) && | |
| 847 (SDL_VideoSurface->format->BitsPerPixel != bpp)) || | |
| 848 ( (flags&SDL_HWPALETTE) && | |
| 849 !(SDL_VideoSurface->flags&SDL_HWPALETTE)) || | |
| 850 /* If the surface is in hardware, video writes are visible | |
| 851 as soon as they are performed, so we need to buffer them | |
| 852 */ | |
| 853 ( ((flags&SDL_HWSURFACE) == SDL_SWSURFACE) && | |
|
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854 (SDL_VideoSurface->flags&SDL_HWSURFACE)) || |
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855 ( (flags&SDL_DOUBLEBUF) && |
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856 (SDL_VideoSurface->flags&SDL_HWSURFACE) && |
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857 !(SDL_VideoSurface->flags&SDL_DOUBLEBUF)) |
| 0 | 858 ) ) { |
| 859 SDL_CreateShadowSurface(bpp); | |
| 860 if ( SDL_ShadowSurface == NULL ) { | |
| 861 SDL_SetError("Couldn't create shadow surface"); | |
| 862 return(NULL); | |
| 863 } | |
| 864 SDL_PublicSurface = SDL_ShadowSurface; | |
| 865 } else { | |
| 866 SDL_PublicSurface = SDL_VideoSurface; | |
| 867 } | |
| 868 video->info.vfmt = SDL_VideoSurface->format; | |
| 869 | |
| 870 /* We're done! */ | |
| 871 return(SDL_PublicSurface); | |
| 872 } | |
| 873 | |
| 874 /* | |
| 875 * Convert a surface into the video pixel format. | |
| 876 */ | |
| 877 SDL_Surface * SDL_DisplayFormat (SDL_Surface *surface) | |
| 878 { | |
| 879 Uint32 flags; | |
| 880 | |
| 881 if ( ! SDL_PublicSurface ) { | |
| 882 SDL_SetError("No video mode has been set"); | |
| 883 return(NULL); | |
| 884 } | |
| 885 /* Set the flags appropriate for copying to display surface */ | |
|
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886 if (((SDL_PublicSurface->flags&SDL_HWSURFACE) == SDL_HWSURFACE) && current_video->info.blit_hw) |
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887 flags = SDL_HWSURFACE; |
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888 else |
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889 flags = SDL_SWSURFACE; |
| 0 | 890 #ifdef AUTORLE_DISPLAYFORMAT |
| 891 flags |= (surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA)); | |
| 892 flags |= SDL_RLEACCELOK; | |
| 893 #else | |
| 894 flags |= surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA|SDL_RLEACCELOK); | |
| 895 #endif | |
| 896 return(SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags)); | |
| 897 } | |
| 898 | |
| 899 /* | |
| 900 * Convert a surface into a format that's suitable for blitting to | |
| 901 * the screen, but including an alpha channel. | |
| 902 */ | |
| 903 SDL_Surface *SDL_DisplayFormatAlpha(SDL_Surface *surface) | |
| 904 { | |
| 905 SDL_PixelFormat *vf; | |
| 906 SDL_PixelFormat *format; | |
| 907 SDL_Surface *converted; | |
| 908 Uint32 flags; | |
| 909 /* default to ARGB8888 */ | |
| 910 Uint32 amask = 0xff000000; | |
| 911 Uint32 rmask = 0x00ff0000; | |
| 912 Uint32 gmask = 0x0000ff00; | |
| 913 Uint32 bmask = 0x000000ff; | |
| 914 | |
| 915 if ( ! SDL_PublicSurface ) { | |
| 916 SDL_SetError("No video mode has been set"); | |
| 917 return(NULL); | |
| 918 } | |
| 919 vf = SDL_PublicSurface->format; | |
| 920 | |
| 921 switch(vf->BytesPerPixel) { | |
| 922 case 2: | |
| 923 /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}. | |
| 924 For anything else (like ARGB4444) it doesn't matter | |
| 925 since we have no special code for it anyway */ | |
| 926 if ( (vf->Rmask == 0x1f) && | |
| 927 (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) { | |
| 928 rmask = 0xff; | |
| 929 bmask = 0xff0000; | |
| 930 } | |
| 931 break; | |
| 932 | |
| 933 case 3: | |
| 934 case 4: | |
| 935 /* Keep the video format, as long as the high 8 bits are | |
| 936 unused or alpha */ | |
| 937 if ( (vf->Rmask == 0xff) && (vf->Bmask == 0xff0000) ) { | |
| 938 rmask = 0xff; | |
| 939 bmask = 0xff0000; | |
| 940 } | |
| 941 break; | |
| 942 | |
| 943 default: | |
| 944 /* We have no other optimised formats right now. When/if a new | |
| 945 optimised alpha format is written, add the converter here */ | |
| 946 break; | |
| 947 } | |
| 948 format = SDL_AllocFormat(32, rmask, gmask, bmask, amask); | |
| 949 flags = SDL_PublicSurface->flags & SDL_HWSURFACE; | |
| 950 flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); | |
| 951 converted = SDL_ConvertSurface(surface, format, flags); | |
| 952 SDL_FreeFormat(format); | |
| 953 return(converted); | |
| 954 } | |
| 955 | |
| 956 /* | |
| 957 * Update a specific portion of the physical screen | |
| 958 */ | |
| 959 void SDL_UpdateRect(SDL_Surface *screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h) | |
| 960 { | |
| 961 if ( screen ) { | |
| 962 SDL_Rect rect; | |
| 963 | |
| 964 /* Perform some checking */ | |
| 965 if ( w == 0 ) | |
| 966 w = screen->w; | |
| 967 if ( h == 0 ) | |
| 968 h = screen->h; | |
| 969 if ( (int)(x+w) > screen->w ) | |
| 970 return; | |
| 971 if ( (int)(y+h) > screen->h ) | |
| 972 return; | |
| 973 | |
| 974 /* Fill the rectangle */ | |
| 975 rect.x = x; | |
| 976 rect.y = y; | |
| 977 rect.w = w; | |
| 978 rect.h = h; | |
| 979 SDL_UpdateRects(screen, 1, &rect); | |
| 980 } | |
| 981 } | |
| 982 void SDL_UpdateRects (SDL_Surface *screen, int numrects, SDL_Rect *rects) | |
| 983 { | |
| 984 int i; | |
| 985 SDL_VideoDevice *video = current_video; | |
| 986 SDL_VideoDevice *this = current_video; | |
| 987 | |
| 988 if ( screen == SDL_ShadowSurface ) { | |
| 989 /* Blit the shadow surface using saved mapping */ | |
|
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990 SDL_Palette *pal = screen->format->palette; |
| 0 | 991 SDL_Color *saved_colors = NULL; |
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992 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 993 /* simulated 8bpp, use correct physical palette */ |
| 994 saved_colors = pal->colors; | |
| 995 if ( video->gammacols ) { | |
| 996 /* gamma-corrected palette */ | |
| 997 pal->colors = video->gammacols; | |
| 998 } else if ( video->physpal ) { | |
| 999 /* physical palette different from logical */ | |
| 1000 pal->colors = video->physpal->colors; | |
| 1001 } | |
| 1002 } | |
| 1003 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { | |
| 1004 SDL_LockCursor(); | |
| 1005 SDL_DrawCursor(SDL_ShadowSurface); | |
| 1006 for ( i=0; i<numrects; ++i ) { | |
| 1007 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1008 SDL_VideoSurface, &rects[i]); | |
| 1009 } | |
| 1010 SDL_EraseCursor(SDL_ShadowSurface); | |
| 1011 SDL_UnlockCursor(); | |
| 1012 } else { | |
| 1013 for ( i=0; i<numrects; ++i ) { | |
| 1014 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1015 SDL_VideoSurface, &rects[i]); | |
| 1016 } | |
| 1017 } | |
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1018 if ( saved_colors ) { |
| 0 | 1019 pal->colors = saved_colors; |
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1020 } |
| 0 | 1021 |
| 1022 /* Fall through to video surface update */ | |
| 1023 screen = SDL_VideoSurface; | |
| 1024 } | |
| 1025 if ( screen == SDL_VideoSurface ) { | |
| 1026 /* Update the video surface */ | |
| 1027 if ( screen->offset ) { | |
| 1028 for ( i=0; i<numrects; ++i ) { | |
| 1029 rects[i].x += video->offset_x; | |
| 1030 rects[i].y += video->offset_y; | |
| 1031 } | |
| 1032 video->UpdateRects(this, numrects, rects); | |
| 1033 for ( i=0; i<numrects; ++i ) { | |
| 1034 rects[i].x -= video->offset_x; | |
| 1035 rects[i].y -= video->offset_y; | |
| 1036 } | |
| 1037 } else { | |
| 1038 video->UpdateRects(this, numrects, rects); | |
| 1039 } | |
| 1040 } | |
| 1041 } | |
| 1042 | |
| 1043 /* | |
| 1044 * Performs hardware double buffering, if possible, or a full update if not. | |
| 1045 */ | |
| 1046 int SDL_Flip(SDL_Surface *screen) | |
| 1047 { | |
| 1048 SDL_VideoDevice *video = current_video; | |
| 1049 /* Copy the shadow surface to the video surface */ | |
| 1050 if ( screen == SDL_ShadowSurface ) { | |
| 1051 SDL_Rect rect; | |
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1052 SDL_Palette *pal = screen->format->palette; |
| 0 | 1053 SDL_Color *saved_colors = NULL; |
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1054 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1055 /* simulated 8bpp, use correct physical palette */ |
| 1056 saved_colors = pal->colors; | |
| 1057 if ( video->gammacols ) { | |
| 1058 /* gamma-corrected palette */ | |
| 1059 pal->colors = video->gammacols; | |
| 1060 } else if ( video->physpal ) { | |
| 1061 /* physical palette different from logical */ | |
| 1062 pal->colors = video->physpal->colors; | |
| 1063 } | |
| 1064 } | |
| 1065 | |
| 1066 rect.x = 0; | |
| 1067 rect.y = 0; | |
| 1068 rect.w = screen->w; | |
| 1069 rect.h = screen->h; | |
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1070 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { |
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1071 SDL_LockCursor(); |
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1072 SDL_DrawCursor(SDL_ShadowSurface); |
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1073 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1074 SDL_VideoSurface, &rect); |
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1075 SDL_EraseCursor(SDL_ShadowSurface); |
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1076 SDL_UnlockCursor(); |
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1077 } else { |
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1078 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1079 SDL_VideoSurface, &rect); |
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1080 } |
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1081 if ( saved_colors ) { |
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1082 pal->colors = saved_colors; |
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1083 } |
| 0 | 1084 |
|
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1085 /* Fall through to video surface update */ |
| 0 | 1086 screen = SDL_VideoSurface; |
| 1087 } | |
| 1088 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 1089 SDL_VideoDevice *this = current_video; | |
| 1090 return(video->FlipHWSurface(this, SDL_VideoSurface)); | |
| 1091 } else { | |
| 1092 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1093 } | |
| 1094 return(0); | |
| 1095 } | |
| 1096 | |
| 1097 static void SetPalette_logical(SDL_Surface *screen, SDL_Color *colors, | |
| 1098 int firstcolor, int ncolors) | |
| 1099 { | |
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1100 SDL_Palette *pal = screen->format->palette; |
| 0 | 1101 SDL_Palette *vidpal; |
| 1102 | |
| 1103 if ( colors != (pal->colors + firstcolor) ) { | |
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1104 memcpy(pal->colors + firstcolor, colors, |
| 0 | 1105 ncolors * sizeof(*colors)); |
| 1106 } | |
| 1107 | |
| 1108 vidpal = SDL_VideoSurface->format->palette; | |
| 1109 if ( (screen == SDL_ShadowSurface) && vidpal ) { | |
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1110 /* |
| 0 | 1111 * This is a shadow surface, and the physical |
| 1112 * framebuffer is also indexed. Propagate the | |
| 1113 * changes to its logical palette so that | |
| 1114 * updates are always identity blits | |
| 1115 */ | |
| 1116 memcpy(vidpal->colors + firstcolor, colors, | |
| 1117 ncolors * sizeof(*colors)); | |
| 1118 } | |
| 1119 SDL_FormatChanged(screen); | |
| 1120 } | |
| 1121 | |
| 1122 static int SetPalette_physical(SDL_Surface *screen, | |
| 1123 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1124 { | |
| 1125 SDL_VideoDevice *video = current_video; | |
| 1126 int gotall = 1; | |
| 1127 | |
| 1128 if ( video->physpal ) { | |
| 1129 /* We need to copy the new colors, since we haven't | |
| 1130 * already done the copy in the logical set above. | |
| 1131 */ | |
| 1132 memcpy(video->physpal->colors + firstcolor, | |
| 1133 colors, ncolors * sizeof(*colors)); | |
| 1134 } | |
| 1135 if ( screen == SDL_ShadowSurface ) { | |
| 1136 if ( SDL_VideoSurface->flags & SDL_HWPALETTE ) { | |
| 1137 /* | |
| 1138 * The real screen is also indexed - set its physical | |
| 1139 * palette. The physical palette does not include the | |
| 1140 * gamma modification, we apply it directly instead, | |
| 1141 * but this only happens if we have hardware palette. | |
| 1142 */ | |
| 1143 screen = SDL_VideoSurface; | |
| 1144 } else { | |
| 1145 /* | |
| 1146 * The video surface is not indexed - invalidate any | |
| 1147 * active shadow-to-video blit mappings. | |
| 1148 */ | |
| 1149 if ( screen->map->dst == SDL_VideoSurface ) { | |
| 1150 SDL_InvalidateMap(screen->map); | |
| 1151 } | |
| 1152 if ( video->gamma ) { | |
| 1153 if( ! video->gammacols ) { | |
| 1154 SDL_Palette *pp = video->physpal; | |
| 1155 if(!pp) | |
| 1156 pp = screen->format->palette; | |
| 1157 video->gammacols = malloc(pp->ncolors | |
| 1158 * sizeof(SDL_Color)); | |
| 1159 SDL_ApplyGamma(video->gamma, | |
| 1160 pp->colors, | |
| 1161 video->gammacols, | |
| 1162 pp->ncolors); | |
| 1163 } else { | |
| 1164 SDL_ApplyGamma(video->gamma, colors, | |
| 1165 video->gammacols | |
| 1166 + firstcolor, | |
| 1167 ncolors); | |
| 1168 } | |
| 1169 } | |
| 1170 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1171 } | |
| 1172 } | |
| 1173 | |
| 1174 if ( screen == SDL_VideoSurface ) { | |
| 1175 SDL_Color gcolors[256]; | |
| 1176 | |
|
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1177 if ( video->gamma ) { |
|
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1178 SDL_ApplyGamma(video->gamma, colors, gcolors, ncolors); |
| 0 | 1179 colors = gcolors; |
| 1180 } | |
| 1181 gotall = video->SetColors(video, firstcolor, ncolors, colors); | |
| 1182 if ( ! gotall ) { | |
| 1183 /* The video flags shouldn't have SDL_HWPALETTE, and | |
| 1184 the video driver is responsible for copying back the | |
| 1185 correct colors into the video surface palette. | |
| 1186 */ | |
| 1187 ; | |
| 1188 } | |
| 1189 SDL_CursorPaletteChanged(); | |
| 1190 } | |
| 1191 return gotall; | |
| 1192 } | |
| 1193 | |
| 1194 /* | |
| 1195 * Set the physical and/or logical colormap of a surface: | |
| 1196 * Only the screen has a physical colormap. It determines what is actually | |
| 1197 * sent to the display. | |
| 1198 * The logical colormap is used to map blits to/from the surface. | |
| 1199 * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL | |
| 1200 * | |
| 1201 * Return nonzero if all colours were set as requested, or 0 otherwise. | |
| 1202 */ | |
| 1203 int SDL_SetPalette(SDL_Surface *screen, int which, | |
| 1204 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1205 { | |
|
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|
1206 SDL_Palette *pal; |
| 0 | 1207 int gotall; |
| 1208 int palsize; | |
| 1209 | |
| 34 | 1210 if ( ! current_video ) { |
| 1211 return 0; | |
| 1212 } | |
| 0 | 1213 if ( screen != SDL_PublicSurface ) { |
|
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|
1214 /* only screens have physical palettes */ |
|
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|
1215 which &= ~SDL_PHYSPAL; |
| 0 | 1216 } else if( (screen->flags & SDL_HWPALETTE) != SDL_HWPALETTE ) { |
|
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|
1217 /* hardware palettes required for split colormaps */ |
|
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|
1218 which |= SDL_PHYSPAL | SDL_LOGPAL; |
| 0 | 1219 } |
| 1220 | |
| 1221 /* Verify the parameters */ | |
| 1222 pal = screen->format->palette; | |
| 1223 if( !pal ) { | |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1224 return 0; /* not a palettized surface */ |
| 0 | 1225 } |
| 1226 gotall = 1; | |
| 1227 palsize = 1 << screen->format->BitsPerPixel; | |
| 1228 if ( ncolors > (palsize - firstcolor) ) { | |
|
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|
1229 ncolors = (palsize - firstcolor); |
| 0 | 1230 gotall = 0; |
| 1231 } | |
| 1232 | |
| 1233 if ( which & SDL_LOGPAL ) { | |
| 1234 /* | |
| 1235 * Logical palette change: The actual screen isn't affected, | |
| 1236 * but the internal colormap is altered so that the | |
| 1237 * interpretation of the pixel values (for blits etc) is | |
| 1238 * changed. | |
| 1239 */ | |
|
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|
1240 SetPalette_logical(screen, colors, firstcolor, ncolors); |
| 0 | 1241 } |
| 1242 if ( which & SDL_PHYSPAL ) { | |
| 1243 SDL_VideoDevice *video = current_video; | |
|
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|
1244 /* |
| 0 | 1245 * Physical palette change: This doesn't affect the |
| 1246 * program's idea of what the screen looks like, but changes | |
| 1247 * its actual appearance. | |
| 1248 */ | |
|
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|
1249 if(!video) |
|
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|
1250 return gotall; /* video not yet initialized */ |
| 0 | 1251 if(!video->physpal && !(which & SDL_LOGPAL) ) { |
| 1252 /* Lazy physical palette allocation */ | |
|
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|
1253 int size; |
| 0 | 1254 SDL_Palette *pp = malloc(sizeof(*pp)); |
| 1255 current_video->physpal = pp; | |
| 1256 pp->ncolors = pal->ncolors; | |
| 1257 size = pp->ncolors * sizeof(SDL_Color); | |
| 1258 pp->colors = malloc(size); | |
| 1259 memcpy(pp->colors, pal->colors, size); | |
| 1260 } | |
| 1261 if ( ! SetPalette_physical(screen, | |
| 1262 colors, firstcolor, ncolors) ) { | |
| 1263 gotall = 0; | |
| 1264 } | |
| 1265 } | |
| 1266 return gotall; | |
| 1267 } | |
| 1268 | |
| 1269 int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor, | |
| 1270 int ncolors) | |
| 1271 { | |
|
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|
1272 return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, |
| 0 | 1273 colors, firstcolor, ncolors); |
| 1274 } | |
| 1275 | |
| 1276 /* | |
| 1277 * Clean up the video subsystem | |
| 1278 */ | |
| 1279 void SDL_VideoQuit (void) | |
| 1280 { | |
| 1281 SDL_Surface *ready_to_go; | |
| 1282 | |
| 1283 if ( current_video ) { | |
| 1284 SDL_VideoDevice *video = current_video; | |
| 1285 SDL_VideoDevice *this = current_video; | |
| 1286 | |
| 1287 /* Halt event processing before doing anything else */ | |
| 1288 SDL_StopEventLoop(); | |
| 1289 | |
| 1290 /* Clean up allocated window manager items */ | |
| 1291 if ( SDL_PublicSurface ) { | |
| 1292 SDL_PublicSurface = NULL; | |
| 1293 } | |
| 1294 SDL_CursorQuit(); | |
| 1295 | |
| 1296 /* Just in case... */ | |
| 1297 SDL_WM_GrabInputOff(); | |
| 1298 | |
| 1299 /* Clean up the system video */ | |
| 1300 video->VideoQuit(this); | |
| 1301 | |
| 1302 /* Free any lingering surfaces */ | |
| 1303 ready_to_go = SDL_ShadowSurface; | |
| 1304 SDL_ShadowSurface = NULL; | |
| 1305 SDL_FreeSurface(ready_to_go); | |
| 1306 if ( SDL_VideoSurface != NULL ) { | |
| 1307 ready_to_go = SDL_VideoSurface; | |
| 1308 SDL_VideoSurface = NULL; | |
| 1309 SDL_FreeSurface(ready_to_go); | |
| 1310 } | |
| 1311 SDL_PublicSurface = NULL; | |
| 1312 | |
| 1313 /* Clean up miscellaneous memory */ | |
| 1314 if ( video->physpal ) { | |
| 1315 free(video->physpal->colors); | |
| 1316 free(video->physpal); | |
| 1317 video->physpal = NULL; | |
| 1318 } | |
| 1319 if ( video->gammacols ) { | |
| 1320 free(video->gammacols); | |
| 1321 video->gammacols = NULL; | |
| 1322 } | |
| 1323 if ( video->gamma ) { | |
| 1324 free(video->gamma); | |
| 1325 video->gamma = NULL; | |
| 1326 } | |
|
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|
1327 if ( video->wm_title != NULL ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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diff
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|
1328 free(video->wm_title); |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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|
1329 video->wm_title = NULL; |
| 0 | 1330 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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|
1331 if ( video->wm_icon != NULL ) { |
|
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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|
1332 free(video->wm_icon); |
|
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* Removed fullscreen menu option from the "Window" menu
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|
1333 video->wm_icon = NULL; |
| 0 | 1334 } |
| 1335 | |
| 1336 /* Finish cleaning up video subsystem */ | |
| 1337 video->free(this); | |
| 1338 current_video = NULL; | |
| 1339 } | |
| 1340 return; | |
| 1341 } | |
| 1342 | |
| 1343 /* Load the GL driver library */ | |
| 1344 int SDL_GL_LoadLibrary(const char *path) | |
| 1345 { | |
| 1346 SDL_VideoDevice *video = current_video; | |
| 1347 SDL_VideoDevice *this = current_video; | |
| 1348 int retval; | |
| 1349 | |
| 1350 retval = -1; | |
|
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1351 if ( video == NULL ) { |
|
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|
1352 SDL_SetError("Video subsystem has not been initialized"); |
| 0 | 1353 } else { |
|
423
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|
1354 if ( video->GL_LoadLibrary ) { |
|
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|
1355 retval = video->GL_LoadLibrary(this, path); |
|
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|
1356 } else { |
|
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|
1357 SDL_SetError("No dynamic GL support in video driver"); |
|
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|
1358 } |
| 0 | 1359 } |
| 1360 return(retval); | |
| 1361 } | |
| 1362 | |
| 1363 void *SDL_GL_GetProcAddress(const char* proc) | |
| 1364 { | |
| 1365 SDL_VideoDevice *video = current_video; | |
| 1366 SDL_VideoDevice *this = current_video; | |
| 1367 void *func; | |
| 1368 | |
| 1369 func = NULL; | |
| 1370 if ( video->GL_GetProcAddress ) { | |
| 1371 if ( video->gl_config.driver_loaded ) { | |
| 1372 func = video->GL_GetProcAddress(this, proc); | |
| 1373 } else { | |
| 1374 SDL_SetError("No GL driver has been loaded"); | |
| 1375 } | |
| 1376 } else { | |
| 1377 SDL_SetError("No dynamic GL support in video driver"); | |
| 1378 } | |
| 1379 return func; | |
| 1380 } | |
| 1381 | |
| 1382 /* Set the specified GL attribute for setting up a GL video mode */ | |
| 1383 int SDL_GL_SetAttribute( SDL_GLattr attr, int value ) | |
| 1384 { | |
| 1385 int retval; | |
| 1386 SDL_VideoDevice *video = current_video; | |
| 1387 | |
| 1388 retval = 0; | |
| 1389 switch (attr) { | |
| 1390 case SDL_GL_RED_SIZE: | |
| 1391 video->gl_config.red_size = value; | |
| 1392 break; | |
| 1393 case SDL_GL_GREEN_SIZE: | |
| 1394 video->gl_config.green_size = value; | |
| 1395 break; | |
| 1396 case SDL_GL_BLUE_SIZE: | |
| 1397 video->gl_config.blue_size = value; | |
| 1398 break; | |
| 1399 case SDL_GL_ALPHA_SIZE: | |
| 1400 video->gl_config.alpha_size = value; | |
| 1401 break; | |
| 1402 case SDL_GL_DOUBLEBUFFER: | |
| 1403 video->gl_config.double_buffer = value; | |
| 1404 break; | |
|
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|
1405 case SDL_GL_BUFFER_SIZE: |
|
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|
1406 video->gl_config.buffer_size = value; |
| 0 | 1407 break; |
| 1408 case SDL_GL_DEPTH_SIZE: | |
| 1409 video->gl_config.depth_size = value; | |
| 1410 break; | |
| 1411 case SDL_GL_STENCIL_SIZE: | |
| 1412 video->gl_config.stencil_size = value; | |
| 1413 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1414 case SDL_GL_ACCUM_RED_SIZE: |
| 0 | 1415 video->gl_config.accum_red_size = value; |
| 1416 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1417 case SDL_GL_ACCUM_GREEN_SIZE: |
| 0 | 1418 video->gl_config.accum_green_size = value; |
| 1419 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1420 case SDL_GL_ACCUM_BLUE_SIZE: |
| 0 | 1421 video->gl_config.accum_blue_size = value; |
| 1422 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1423 case SDL_GL_ACCUM_ALPHA_SIZE: |
| 0 | 1424 video->gl_config.accum_alpha_size = value; |
| 1425 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1426 case SDL_GL_STEREO: |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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diff
changeset
|
1427 video->gl_config.stereo = value; |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1428 break; |
|
656
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Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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|
1429 case SDL_GL_MULTISAMPLEBUFFERS: |
|
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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1430 video->gl_config.multisamplebuffers = value; |
|
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Date: Thu, 24 Apr 2003 15:13:47 -0400
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|
1431 break; |
|
656
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Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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|
1432 case SDL_GL_MULTISAMPLESAMPLES: |
|
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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1433 video->gl_config.multisamplesamples = value; |
|
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|
1434 break; |
| 0 | 1435 default: |
| 1436 SDL_SetError("Unknown OpenGL attribute"); | |
| 1437 retval = -1; | |
| 1438 break; | |
| 1439 } | |
| 1440 return(retval); | |
| 1441 } | |
| 1442 | |
| 1443 /* Retrieve an attribute value from the windowing system. */ | |
| 1444 int SDL_GL_GetAttribute(SDL_GLattr attr, int* value) | |
| 1445 { | |
| 1446 int retval = -1; | |
| 1447 SDL_VideoDevice* video = current_video; | |
| 1448 SDL_VideoDevice* this = current_video; | |
| 1449 | |
| 1450 if ( video->GL_GetAttribute ) { | |
| 1451 retval = this->GL_GetAttribute(this, attr, value); | |
|
11
7b94b6379341
*** empty log message ***
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diff
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|
1452 } else { |
|
7b94b6379341
*** empty log message ***
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diff
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|
1453 *value = 0; |
|
7b94b6379341
*** empty log message ***
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|
1454 SDL_SetError("GL_GetAttribute not supported"); |
| 0 | 1455 } |
| 1456 return retval; | |
| 1457 } | |
| 1458 | |
| 1459 /* Perform a GL buffer swap on the current GL context */ | |
| 1460 void SDL_GL_SwapBuffers(void) | |
| 1461 { | |
| 1462 SDL_VideoDevice *video = current_video; | |
| 1463 SDL_VideoDevice *this = current_video; | |
| 1464 | |
| 1465 if ( video->screen->flags & SDL_OPENGL ) { | |
|
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|
1466 video->GL_SwapBuffers(this); |
|
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1467 } else { |
|
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1468 SDL_SetError("OpenGL video mode has not been set"); |
| 0 | 1469 } |
| 1470 } | |
| 1471 | |
| 1472 /* Update rects with locking */ | |
| 1473 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect *rects) | |
| 1474 { | |
| 1475 SDL_GL_Lock(); | |
| 1476 SDL_GL_UpdateRects(numrects, rects); | |
| 1477 SDL_GL_Unlock(); | |
| 1478 } | |
| 1479 | |
| 1480 /* Update rects without state setting and changing (the caller is responsible for it) */ | |
| 1481 void SDL_GL_UpdateRects(int numrects, SDL_Rect *rects) | |
| 1482 { | |
| 1483 #ifdef HAVE_OPENGL | |
| 1484 SDL_VideoDevice *this = current_video; | |
| 1485 SDL_Rect update, tmp; | |
| 1486 int x, y, i; | |
| 1487 | |
| 1488 for ( i = 0; i < numrects; i++ ) | |
| 1489 { | |
| 1490 tmp.y = rects[i].y; | |
| 1491 tmp.h = rects[i].h; | |
| 1492 for ( y = 0; y <= rects[i].h / 256; y++ ) | |
| 1493 { | |
| 1494 tmp.x = rects[i].x; | |
| 1495 tmp.w = rects[i].w; | |
| 1496 for ( x = 0; x <= rects[i].w / 256; x++ ) | |
| 1497 { | |
| 1498 update.x = tmp.x; | |
| 1499 update.y = tmp.y; | |
| 1500 update.w = tmp.w; | |
| 1501 update.h = tmp.h; | |
| 1502 | |
| 1503 if ( update.w > 256 ) | |
| 1504 update.w = 256; | |
| 1505 | |
| 1506 if ( update.h > 256 ) | |
| 1507 update.h = 256; | |
| 1508 | |
| 1509 this->glFlush(); | |
| 1510 this->glTexSubImage2D( | |
| 1511 GL_TEXTURE_2D, | |
| 1512 0, | |
| 1513 0, | |
| 1514 0, | |
| 1515 update.w, | |
| 1516 update.h, | |
| 1517 this->is_32bit? GL_RGBA : GL_RGB, | |
| 1518 #ifdef GL_VERSION_1_2 | |
| 1519 this->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 1520 #else | |
| 1521 GL_UNSIGNED_BYTE, | |
| 1522 #endif | |
| 1523 (Uint8 *)this->screen->pixels + | |
| 1524 this->screen->format->BytesPerPixel * update.x + | |
| 1525 update.y * this->screen->pitch ); | |
| 1526 | |
| 1527 this->glFlush(); | |
| 1528 /* | |
| 1529 * Note the parens around the function name: | |
| 1530 * This is because some OpenGL implementations define glTexCoord etc | |
| 1531 * as macros, and we don't want them expanded here. | |
| 1532 */ | |
| 1533 this->glBegin(GL_TRIANGLE_STRIP); | |
| 1534 (this->glTexCoord2f)( 0.0, 0.0 ); | |
| 1535 (this->glVertex2i)( update.x, update.y ); | |
| 1536 (this->glTexCoord2f)( (float)(update.w / 256.0), 0.0 ); | |
| 1537 (this->glVertex2i)( update.x + update.w, update.y ); | |
| 1538 (this->glTexCoord2f)( 0.0, (float)(update.h / 256.0) ); | |
| 1539 (this->glVertex2i)( update.x, update.y + update.h ); | |
| 1540 (this->glTexCoord2f)( (float)(update.w / 256.0), (float)(update.h / 256.0) ); | |
| 1541 (this->glVertex2i)( update.x + update.w , update.y + update.h ); | |
| 1542 this->glEnd(); | |
| 1543 | |
| 1544 tmp.x += 256; | |
| 1545 tmp.w -= 256; | |
| 1546 } | |
| 1547 tmp.y += 256; | |
| 1548 tmp.h -= 256; | |
| 1549 } | |
| 1550 } | |
| 1551 #endif | |
| 1552 } | |
| 1553 | |
| 1554 /* Lock == save current state */ | |
| 1555 void SDL_GL_Lock() | |
| 1556 { | |
| 1557 #ifdef HAVE_OPENGL | |
| 1558 lock_count--; | |
| 1559 if (lock_count==-1) | |
| 1560 { | |
| 1561 SDL_VideoDevice *this = current_video; | |
| 1562 | |
| 1563 this->glPushAttrib( GL_ALL_ATTRIB_BITS ); /* TODO: narrow range of what is saved */ | |
|
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1564 #ifdef GL_CLIENT_PIXEL_STORE_BIT |
| 0 | 1565 this->glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT ); |
|
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1566 #endif |
| 0 | 1567 |
| 1568 this->glEnable(GL_TEXTURE_2D); | |
| 1569 this->glEnable(GL_BLEND); | |
| 1570 this->glDisable(GL_FOG); | |
| 1571 this->glDisable(GL_ALPHA_TEST); | |
| 1572 this->glDisable(GL_DEPTH_TEST); | |
| 1573 this->glDisable(GL_SCISSOR_TEST); | |
| 1574 this->glDisable(GL_STENCIL_TEST); | |
| 1575 this->glDisable(GL_CULL_FACE); | |
| 1576 | |
| 1577 this->glBindTexture( GL_TEXTURE_2D, this->texture ); | |
| 1578 this->glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); | |
| 1579 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); | |
| 1580 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); | |
| 1581 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); | |
| 1582 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT ); | |
| 1583 | |
| 1584 this->glPixelStorei( GL_UNPACK_ROW_LENGTH, this->screen->pitch / this->screen->format->BytesPerPixel ); | |
| 1585 this->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
| 1586 (this->glColor4f)(1.0, 1.0, 1.0, 1.0); /* Solaris workaround */ | |
| 1587 | |
| 1588 this->glViewport(0, 0, this->screen->w, this->screen->h); | |
| 1589 this->glMatrixMode(GL_PROJECTION); | |
| 1590 this->glPushMatrix(); | |
| 1591 this->glLoadIdentity(); | |
| 1592 | |
| 1593 this->glOrtho(0.0, (GLdouble) this->screen->w, (GLdouble) this->screen->h, 0.0, 0.0, 1.0); | |
| 1594 | |
| 1595 this->glMatrixMode(GL_MODELVIEW); | |
| 1596 this->glPushMatrix(); | |
| 1597 this->glLoadIdentity(); | |
| 1598 } | |
| 1599 #endif | |
| 1600 } | |
| 1601 | |
| 1602 /* Unlock == restore saved state */ | |
| 1603 void SDL_GL_Unlock() | |
| 1604 { | |
| 1605 #ifdef HAVE_OPENGL | |
| 1606 lock_count++; | |
| 1607 if (lock_count==0) | |
| 1608 { | |
| 1609 SDL_VideoDevice *this = current_video; | |
| 1610 | |
| 1611 this->glPopMatrix(); | |
| 1612 this->glMatrixMode(GL_PROJECTION); | |
| 1613 this->glPopMatrix(); | |
| 1614 | |
| 1615 this->glPopClientAttrib(); | |
| 1616 this->glPopAttrib(); | |
| 1617 } | |
| 1618 #endif | |
| 1619 } | |
| 1620 | |
| 1621 /* | |
| 1622 * Sets/Gets the title and icon text of the display window, if any. | |
| 1623 */ | |
| 1624 void SDL_WM_SetCaption (const char *title, const char *icon) | |
| 1625 { | |
| 1626 SDL_VideoDevice *video = current_video; | |
| 1627 SDL_VideoDevice *this = current_video; | |
| 1628 | |
|
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1629 if ( video ) { |
|
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1630 if ( title ) { |
|
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1631 if ( video->wm_title ) { |
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1632 free(video->wm_title); |
|
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1633 } |
|
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1634 video->wm_title = (char *)malloc(strlen(title)+1); |
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1635 if ( video->wm_title != NULL ) { |
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1636 strcpy(video->wm_title, title); |
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1637 } |
| 0 | 1638 } |
|
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1639 if ( icon ) { |
|
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1640 if ( video->wm_icon ) { |
|
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1641 free(video->wm_icon); |
|
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1642 } |
|
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1643 video->wm_icon = (char *)malloc(strlen(icon)+1); |
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1644 if ( video->wm_icon != NULL ) { |
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1645 strcpy(video->wm_icon, icon); |
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1646 } |
| 0 | 1647 } |
|
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1648 if ( (title || icon) && (video->SetCaption != NULL) ) { |
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1649 video->SetCaption(this, video->wm_title,video->wm_icon); |
| 0 | 1650 } |
| 1651 } | |
| 1652 } | |
| 1653 void SDL_WM_GetCaption (char **title, char **icon) | |
| 1654 { | |
|
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1655 SDL_VideoDevice *video = current_video; |
|
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1656 |
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1657 if ( video ) { |
|
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1658 if ( title ) { |
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1659 *title = video->wm_title; |
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1660 } |
|
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1661 if ( icon ) { |
|
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1662 *icon = video->wm_icon; |
|
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1663 } |
| 0 | 1664 } |
| 1665 } | |
| 1666 | |
|
541
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1667 /* Utility function used by SDL_WM_SetIcon(); |
|
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1668 * flags & 1 for color key, flags & 2 for alpha channel. */ |
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1669 static void CreateMaskFromColorKeyOrAlpha(SDL_Surface *icon, Uint8 *mask, int flags) |
| 0 | 1670 { |
| 1671 int x, y; | |
| 1672 Uint32 colorkey; | |
| 1673 #define SET_MASKBIT(icon, x, y, mask) \ | |
| 1674 mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8))) | |
| 1675 | |
| 1676 colorkey = icon->format->colorkey; | |
| 1677 switch (icon->format->BytesPerPixel) { | |
| 1678 case 1: { Uint8 *pixels; | |
| 1679 for ( y=0; y<icon->h; ++y ) { | |
| 1680 pixels = (Uint8 *)icon->pixels + y*icon->pitch; | |
| 1681 for ( x=0; x<icon->w; ++x ) { | |
| 1682 if ( *pixels++ == colorkey ) { | |
| 1683 SET_MASKBIT(icon, x, y, mask); | |
| 1684 } | |
| 1685 } | |
| 1686 } | |
| 1687 } | |
| 1688 break; | |
| 1689 | |
| 1690 case 2: { Uint16 *pixels; | |
| 1691 for ( y=0; y<icon->h; ++y ) { | |
| 1692 pixels = (Uint16 *)icon->pixels + | |
| 1693 y*icon->pitch/2; | |
| 1694 for ( x=0; x<icon->w; ++x ) { | |
|
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1695 if ( (flags & 1) && *pixels == colorkey ) { |
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1696 SET_MASKBIT(icon, x, y, mask); |
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1697 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1698 SET_MASKBIT(icon, x, y, mask); |
| 1699 } | |
|
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1700 pixels++; |
| 0 | 1701 } |
| 1702 } | |
| 1703 } | |
| 1704 break; | |
| 1705 | |
| 1706 case 4: { Uint32 *pixels; | |
| 1707 for ( y=0; y<icon->h; ++y ) { | |
| 1708 pixels = (Uint32 *)icon->pixels + | |
| 1709 y*icon->pitch/4; | |
| 1710 for ( x=0; x<icon->w; ++x ) { | |
|
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1711 if ( (flags & 1) && *pixels == colorkey ) { |
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1712 SET_MASKBIT(icon, x, y, mask); |
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1713 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1714 SET_MASKBIT(icon, x, y, mask); |
| 1715 } | |
|
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1716 pixels++; |
| 0 | 1717 } |
| 1718 } | |
| 1719 } | |
| 1720 break; | |
| 1721 } | |
| 1722 } | |
| 1723 | |
| 1724 /* | |
| 1725 * Sets the window manager icon for the display window. | |
| 1726 */ | |
| 1727 void SDL_WM_SetIcon (SDL_Surface *icon, Uint8 *mask) | |
| 1728 { | |
| 1729 SDL_VideoDevice *video = current_video; | |
| 1730 SDL_VideoDevice *this = current_video; | |
| 1731 | |
| 1732 if ( icon && video->SetIcon ) { | |
| 1733 /* Generate a mask if necessary, and create the icon! */ | |
| 1734 if ( mask == NULL ) { | |
| 1735 int mask_len = icon->h*(icon->w+7)/8; | |
|
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1736 int flags = 0; |
| 0 | 1737 mask = (Uint8 *)malloc(mask_len); |
| 1738 if ( mask == NULL ) { | |
| 1739 return; | |
| 1740 } | |
| 1741 memset(mask, ~0, mask_len); | |
|
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1742 if ( icon->flags & SDL_SRCCOLORKEY ) flags |= 1; |
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1743 if ( icon->flags & SDL_SRCALPHA ) flags |= 2; |
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1744 if( flags ) { |
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1745 CreateMaskFromColorKeyOrAlpha(icon, mask, flags); |
| 0 | 1746 } |
| 1747 video->SetIcon(video, icon, mask); | |
| 1748 free(mask); | |
| 1749 } else { | |
| 1750 video->SetIcon(this, icon, mask); | |
| 1751 } | |
| 1752 } | |
| 1753 } | |
| 1754 | |
| 1755 /* | |
| 1756 * Grab or ungrab the keyboard and mouse input. | |
| 1757 * This function returns the final grab mode after calling the | |
| 1758 * driver dependent function. | |
| 1759 */ | |
| 1760 static SDL_GrabMode SDL_WM_GrabInputRaw(SDL_GrabMode mode) | |
| 1761 { | |
| 1762 SDL_VideoDevice *video = current_video; | |
| 1763 SDL_VideoDevice *this = current_video; | |
| 1764 | |
| 1765 /* Only do something if we have support for grabs */ | |
| 1766 if ( video->GrabInput == NULL ) { | |
| 1767 return(video->input_grab); | |
| 1768 } | |
| 1769 | |
| 1770 /* If the final grab mode if off, only then do we actually grab */ | |
| 1771 #ifdef DEBUG_GRAB | |
| 1772 printf("SDL_WM_GrabInputRaw(%d) ... ", mode); | |
| 1773 #endif | |
| 1774 if ( mode == SDL_GRAB_OFF ) { | |
| 1775 if ( video->input_grab != SDL_GRAB_OFF ) { | |
| 1776 mode = video->GrabInput(this, mode); | |
| 1777 } | |
| 1778 } else { | |
| 1779 if ( video->input_grab == SDL_GRAB_OFF ) { | |
| 1780 mode = video->GrabInput(this, mode); | |
| 1781 } | |
| 1782 } | |
| 1783 if ( mode != video->input_grab ) { | |
| 1784 video->input_grab = mode; | |
| 1785 if ( video->CheckMouseMode ) { | |
| 1786 video->CheckMouseMode(this); | |
| 1787 } | |
| 1788 } | |
| 1789 #ifdef DEBUG_GRAB | |
| 1790 printf("Final mode %d\n", video->input_grab); | |
| 1791 #endif | |
| 1792 | |
| 1793 /* Return the final grab state */ | |
| 1794 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1795 mode -= SDL_GRAB_FULLSCREEN; | |
| 1796 } | |
| 1797 return(mode); | |
| 1798 } | |
| 1799 SDL_GrabMode SDL_WM_GrabInput(SDL_GrabMode mode) | |
| 1800 { | |
| 1801 SDL_VideoDevice *video = current_video; | |
| 1802 | |
|
11
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1803 /* If the video isn't initialized yet, we can't do anything */ |
|
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1804 if ( ! video ) { |
|
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1805 return SDL_GRAB_OFF; |
|
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|
1806 } |
| 0 | 1807 |
| 1808 /* Return the current mode on query */ | |
| 1809 if ( mode == SDL_GRAB_QUERY ) { | |
| 1810 mode = video->input_grab; | |
| 1811 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1812 mode -= SDL_GRAB_FULLSCREEN; | |
| 1813 } | |
| 1814 return(mode); | |
| 1815 } | |
| 1816 | |
| 1817 #ifdef DEBUG_GRAB | |
| 1818 printf("SDL_WM_GrabInput(%d) ... ", mode); | |
| 1819 #endif | |
| 1820 /* If the video surface is fullscreen, we always grab */ | |
| 1821 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1822 mode -= SDL_GRAB_FULLSCREEN; | |
| 1823 } | |
| 1824 if ( SDL_VideoSurface && (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { | |
| 1825 mode += SDL_GRAB_FULLSCREEN; | |
| 1826 } | |
| 1827 return(SDL_WM_GrabInputRaw(mode)); | |
| 1828 } | |
| 1829 static SDL_GrabMode SDL_WM_GrabInputOff(void) | |
| 1830 { | |
| 1831 SDL_GrabMode mode; | |
| 1832 | |
| 1833 /* First query the current grab state */ | |
| 1834 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 1835 | |
| 1836 /* Now explicitly turn off input grab */ | |
| 1837 SDL_WM_GrabInputRaw(SDL_GRAB_OFF); | |
| 1838 | |
| 1839 /* Return the old state */ | |
| 1840 return(mode); | |
| 1841 } | |
| 1842 | |
| 1843 /* | |
| 1844 * Iconify the window in window managed environments. | |
| 1845 * A successful iconification will result in an SDL_APPACTIVE loss event. | |
| 1846 */ | |
| 1847 int SDL_WM_IconifyWindow(void) | |
| 1848 { | |
| 1849 SDL_VideoDevice *video = current_video; | |
| 1850 SDL_VideoDevice *this = current_video; | |
| 1851 int retval; | |
| 1852 | |
| 1853 retval = 0; | |
| 1854 if ( video->IconifyWindow ) { | |
| 1855 retval = video->IconifyWindow(this); | |
| 1856 } | |
| 1857 return(retval); | |
| 1858 } | |
| 1859 | |
| 1860 /* | |
| 1861 * Toggle fullscreen mode | |
| 1862 */ | |
| 1863 int SDL_WM_ToggleFullScreen(SDL_Surface *surface) | |
| 1864 { | |
| 1865 SDL_VideoDevice *video = current_video; | |
| 1866 SDL_VideoDevice *this = current_video; | |
| 1867 int toggled; | |
| 1868 | |
| 1869 toggled = 0; | |
| 1870 if ( SDL_PublicSurface && (surface == SDL_PublicSurface) && | |
| 1871 video->ToggleFullScreen ) { | |
| 1872 if ( surface->flags & SDL_FULLSCREEN ) { | |
| 1873 toggled = video->ToggleFullScreen(this, 0); | |
| 1874 if ( toggled ) { | |
| 1875 SDL_VideoSurface->flags &= ~SDL_FULLSCREEN; | |
| 1876 SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; | |
| 1877 } | |
| 1878 } else { | |
| 1879 toggled = video->ToggleFullScreen(this, 1); | |
| 1880 if ( toggled ) { | |
| 1881 SDL_VideoSurface->flags |= SDL_FULLSCREEN; | |
| 1882 SDL_PublicSurface->flags |= SDL_FULLSCREEN; | |
| 1883 } | |
| 1884 } | |
| 1885 /* Double-check the grab state inside SDL_WM_GrabInput() */ | |
| 1886 if ( toggled ) { | |
| 1887 SDL_WM_GrabInput(video->input_grab); | |
| 1888 } | |
| 1889 } | |
| 1890 return(toggled); | |
| 1891 } | |
| 1892 | |
| 1893 /* | |
| 1894 * Get some platform dependent window manager information | |
| 1895 */ | |
| 1896 int SDL_GetWMInfo (SDL_SysWMinfo *info) | |
| 1897 { | |
| 1898 SDL_VideoDevice *video = current_video; | |
| 1899 SDL_VideoDevice *this = current_video; | |
| 1900 | |
| 1901 if ( video && video->GetWMInfo ) { | |
| 1902 return(video->GetWMInfo(this, info)); | |
| 1903 } else { | |
| 1904 return(0); | |
| 1905 } | |
| 1906 } |