Mercurial > sdl-ios-xcode
annotate src/video/SDL_video.c @ 979:c9d1ade1fb0b
Grr, have to resort video modes one more time
author | Patrice Mandin <patmandin@gmail.com> |
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date | Wed, 17 Nov 2004 23:23:03 +0000 |
parents | cdea7cbc3e23 |
children | 475166d13b44 |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
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Updated copyright information for 2004 (Happy New Year!)
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3 Copyright (C) 1997-2004 Sam Lantinga |
0 | 4 |
5 This library is free software; you can redistribute it and/or | |
6 modify it under the terms of the GNU Library General Public | |
7 License as published by the Free Software Foundation; either | |
8 version 2 of the License, or (at your option) any later version. | |
9 | |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 Library General Public License for more details. | |
14 | |
15 You should have received a copy of the GNU Library General Public | |
16 License along with this library; if not, write to the Free | |
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | |
19 Sam Lantinga | |
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20 slouken@libsdl.org |
0 | 21 */ |
22 | |
23 #ifdef SAVE_RCSID | |
24 static char rcsid = | |
25 "@(#) $Id$"; | |
26 #endif | |
27 | |
28 /* The high-level video driver subsystem */ | |
29 | |
30 #include <stdio.h> | |
31 #include <stdlib.h> | |
32 #include <string.h> | |
33 | |
34 #include "SDL.h" | |
35 #include "SDL_error.h" | |
36 #include "SDL_video.h" | |
37 #include "SDL_events.h" | |
38 #include "SDL_mutex.h" | |
39 #include "SDL_sysvideo.h" | |
40 #include "SDL_sysevents.h" | |
41 #include "SDL_blit.h" | |
42 #include "SDL_pixels_c.h" | |
43 #include "SDL_events_c.h" | |
44 #include "SDL_cursor_c.h" | |
45 | |
46 /* Available video drivers */ | |
47 static VideoBootStrap *bootstrap[] = { | |
48 #ifdef ENABLE_X11 | |
49 &X11_bootstrap, | |
50 #endif | |
51 #ifdef ENABLE_DGA | |
52 &DGA_bootstrap, | |
53 #endif | |
30
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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 | |
75
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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 | |
173
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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 | |
456
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Fixed crash with invalid bpp in SDL_SetVideoMode()
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436 /* Check parameters */ |
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Fixed crash with invalid bpp in SDL_SetVideoMode()
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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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Fixed crash with invalid bpp in SDL_SetVideoMode()
Sam Lantinga <slouken@libsdl.org>
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439 return(0); |
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Fixed crash with invalid bpp in SDL_SetVideoMode()
Sam Lantinga <slouken@libsdl.org>
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440 } |
430
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Make sure width and height passed to SDL_GetVideoMode() are sane.
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441 if ((*w <= 0) || (*h <= 0)) { |
456
b4e14b15af3c
Fixed crash with invalid bpp in SDL_SetVideoMode()
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442 SDL_SetError("Invalid width or height"); |
430
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Make sure width and height passed to SDL_GetVideoMode() are sane.
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443 return(0); |
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Make sure width and height passed to SDL_GetVideoMode() are sane.
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444 } |
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Make sure width and height passed to SDL_GetVideoMode() are sane.
Ryan C. Gordon <icculus@icculus.org>
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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 */ |
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diff
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631 SDL_ResetKeyboard(); |
460
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632 SDL_ResetMouse(); |
14
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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) { | |
662
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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); | |
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Fix a crash if an OpenGL video mode can't be set.
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diff
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664 |
4d24d5a660a8
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 */ |
4d24d5a660a8
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216
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666 if ( is_opengl && !(mode->flags & SDL_OPENGL) ) { |
4d24d5a660a8
Fix a crash if an OpenGL video mode can't be set.
Sam Lantinga <slouken@libsdl.org>
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667 mode = NULL; |
883
50f5a29c6a17
Date: Sat, 10 Apr 2004 02:25:33 -0400
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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
Sam Lantinga <slouken@libsdl.org>
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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 ) { | |
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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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>
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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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745 |
916
46916168361d
Date: Sun, 25 Jul 2004 23:10:03 +0800
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746 #if (defined(macintosh) && !defined(__MWERKS__)) |
46916168361d
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Sam Lantinga <slouken@libsdl.org>
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747 #define __SDL_NOGETPROCADDR__ |
46916168361d
Date: Sun, 25 Jul 2004 23:10:03 +0800
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748 #elif defined(__QNXNTO__) && (_NTO_VERSION < 630) |
46916168361d
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749 #define __SDL_NOGETPROCADDR__ |
46916168361d
Date: Sun, 25 Jul 2004 23:10:03 +0800
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750 #endif |
910
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Date: Sat, 26 Jun 2004 14:58:42 +0300
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751 #ifdef __SDL_NOGETPROCADDR__ |
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Date: Sat, 26 Jun 2004 14:58:42 +0300
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752 #define SDL_PROC(ret,func,params) video->func=func; |
663
8bedd6d61642
Date: Sat, 2 Aug 2003 16:22:51 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
662
diff
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|
753 #else |
910
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754 #define SDL_PROC(ret,func,params) \ |
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755 do { \ |
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Date: Sat, 26 Jun 2004 14:58:42 +0300
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756 video->func = SDL_GL_GetProcAddress(#func); \ |
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757 if ( ! video->func ) { \ |
4ab6d1fd028f
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diff
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|
758 SDL_SetError("Couldn't load GL function: %s\n", #func); \ |
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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759 return(NULL); \ |
4ab6d1fd028f
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760 } \ |
4ab6d1fd028f
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761 } while ( 0 ); |
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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changeset
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762 |
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763 #endif /* __SDL_NOGETPROCADDR__ */ |
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764 |
650
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765 #include "SDL_glfuncs.h" |
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766 #undef SDL_PROC |
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767 } |
910
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768 #endif /* HAVE_OPENGL */ |
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769 |
0 | 770 /* If we're running OpenGL, make the context current */ |
771 if ( (video->screen->flags & SDL_OPENGL) && | |
772 video->GL_MakeCurrent ) { | |
773 if ( video->GL_MakeCurrent(this) < 0 ) { | |
774 return(NULL); | |
775 } | |
776 } | |
777 | |
778 /* Set up a fake SDL surface for OpenGL "blitting" */ | |
779 if ( (flags & SDL_OPENGLBLIT) == SDL_OPENGLBLIT ) { | |
780 /* Load GL functions for performing the texture updates */ | |
781 #ifdef HAVE_OPENGL | |
782 | |
783 /* Create a software surface for blitting */ | |
784 #ifdef GL_VERSION_1_2 | |
785 /* If the implementation either supports the packed pixels | |
786 extension, or implements the core OpenGL 1.2 API, it will | |
787 support the GL_UNSIGNED_SHORT_5_6_5 texture format. | |
788 */ | |
789 if ( (bpp == 16) && | |
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790 (strstr((const char *)video->glGetString(GL_EXTENSIONS), "GL_EXT_packed_pixels") || |
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791 (atof((const char *)video->glGetString(GL_VERSION)) >= 1.2f)) |
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792 ) { |
0 | 793 video->is_32bit = 0; |
794 SDL_VideoSurface = SDL_CreateRGBSurface( | |
795 flags, | |
796 width, | |
797 height, | |
798 16, | |
799 31 << 11, | |
800 63 << 5, | |
801 31, | |
802 0 | |
803 ); | |
804 } | |
805 else | |
806 #endif /* OpenGL 1.2 */ | |
807 { | |
808 video->is_32bit = 1; | |
809 SDL_VideoSurface = SDL_CreateRGBSurface( | |
810 flags, | |
811 width, | |
812 height, | |
813 32, | |
814 #if SDL_BYTEORDER == SDL_LIL_ENDIAN | |
815 0x000000FF, | |
816 0x0000FF00, | |
817 0x00FF0000, | |
818 0xFF000000 | |
819 #else | |
820 0xFF000000, | |
821 0x00FF0000, | |
822 0x0000FF00, | |
823 0x000000FF | |
824 #endif | |
825 ); | |
826 } | |
827 if ( ! SDL_VideoSurface ) { | |
828 return(NULL); | |
829 } | |
830 SDL_VideoSurface->flags = mode->flags | SDL_OPENGLBLIT; | |
831 | |
832 /* Free the original video mode surface (is this safe?) */ | |
833 SDL_FreeSurface(mode); | |
834 | |
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835 /* Set the surface completely opaque & white by default */ |
0 | 836 memset( SDL_VideoSurface->pixels, 255, SDL_VideoSurface->h * SDL_VideoSurface->pitch ); |
837 video->glGenTextures( 1, &video->texture ); | |
838 video->glBindTexture( GL_TEXTURE_2D, video->texture ); | |
839 video->glTexImage2D( | |
840 GL_TEXTURE_2D, | |
841 0, | |
842 video->is_32bit ? GL_RGBA : GL_RGB, | |
843 256, | |
844 256, | |
845 0, | |
846 video->is_32bit ? GL_RGBA : GL_RGB, | |
847 #ifdef GL_VERSION_1_2 | |
848 video->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
849 #else | |
850 GL_UNSIGNED_BYTE, | |
851 #endif | |
852 NULL); | |
853 | |
854 video->UpdateRects = SDL_GL_UpdateRectsLock; | |
855 #else | |
856 SDL_SetError("Somebody forgot to #define HAVE_OPENGL"); | |
857 return(NULL); | |
858 #endif | |
859 } | |
860 | |
861 /* Create a shadow surface if necessary */ | |
862 /* There are three conditions under which we create a shadow surface: | |
863 1. We need a particular bits-per-pixel that we didn't get. | |
864 2. We need a hardware palette and didn't get one. | |
865 3. We need a software surface and got a hardware surface. | |
866 */ | |
867 if ( !(SDL_VideoSurface->flags & SDL_OPENGL) && | |
868 ( | |
869 ( !(flags&SDL_ANYFORMAT) && | |
870 (SDL_VideoSurface->format->BitsPerPixel != bpp)) || | |
871 ( (flags&SDL_HWPALETTE) && | |
872 !(SDL_VideoSurface->flags&SDL_HWPALETTE)) || | |
873 /* If the surface is in hardware, video writes are visible | |
874 as soon as they are performed, so we need to buffer them | |
875 */ | |
876 ( ((flags&SDL_HWSURFACE) == SDL_SWSURFACE) && | |
580
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877 (SDL_VideoSurface->flags&SDL_HWSURFACE)) || |
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878 ( (flags&SDL_DOUBLEBUF) && |
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879 (SDL_VideoSurface->flags&SDL_HWSURFACE) && |
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880 !(SDL_VideoSurface->flags&SDL_DOUBLEBUF)) |
0 | 881 ) ) { |
882 SDL_CreateShadowSurface(bpp); | |
883 if ( SDL_ShadowSurface == NULL ) { | |
884 SDL_SetError("Couldn't create shadow surface"); | |
885 return(NULL); | |
886 } | |
887 SDL_PublicSurface = SDL_ShadowSurface; | |
888 } else { | |
889 SDL_PublicSurface = SDL_VideoSurface; | |
890 } | |
891 video->info.vfmt = SDL_VideoSurface->format; | |
892 | |
893 /* We're done! */ | |
894 return(SDL_PublicSurface); | |
895 } | |
896 | |
897 /* | |
898 * Convert a surface into the video pixel format. | |
899 */ | |
900 SDL_Surface * SDL_DisplayFormat (SDL_Surface *surface) | |
901 { | |
902 Uint32 flags; | |
903 | |
904 if ( ! SDL_PublicSurface ) { | |
905 SDL_SetError("No video mode has been set"); | |
906 return(NULL); | |
907 } | |
908 /* Set the flags appropriate for copying to display surface */ | |
313
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909 if (((SDL_PublicSurface->flags&SDL_HWSURFACE) == SDL_HWSURFACE) && current_video->info.blit_hw) |
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910 flags = SDL_HWSURFACE; |
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911 else |
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912 flags = SDL_SWSURFACE; |
0 | 913 #ifdef AUTORLE_DISPLAYFORMAT |
914 flags |= (surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA)); | |
915 flags |= SDL_RLEACCELOK; | |
916 #else | |
917 flags |= surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA|SDL_RLEACCELOK); | |
918 #endif | |
919 return(SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags)); | |
920 } | |
921 | |
922 /* | |
923 * Convert a surface into a format that's suitable for blitting to | |
924 * the screen, but including an alpha channel. | |
925 */ | |
926 SDL_Surface *SDL_DisplayFormatAlpha(SDL_Surface *surface) | |
927 { | |
928 SDL_PixelFormat *vf; | |
929 SDL_PixelFormat *format; | |
930 SDL_Surface *converted; | |
931 Uint32 flags; | |
932 /* default to ARGB8888 */ | |
933 Uint32 amask = 0xff000000; | |
934 Uint32 rmask = 0x00ff0000; | |
935 Uint32 gmask = 0x0000ff00; | |
936 Uint32 bmask = 0x000000ff; | |
937 | |
938 if ( ! SDL_PublicSurface ) { | |
939 SDL_SetError("No video mode has been set"); | |
940 return(NULL); | |
941 } | |
942 vf = SDL_PublicSurface->format; | |
943 | |
944 switch(vf->BytesPerPixel) { | |
945 case 2: | |
946 /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}. | |
947 For anything else (like ARGB4444) it doesn't matter | |
948 since we have no special code for it anyway */ | |
949 if ( (vf->Rmask == 0x1f) && | |
950 (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) { | |
951 rmask = 0xff; | |
952 bmask = 0xff0000; | |
953 } | |
954 break; | |
955 | |
956 case 3: | |
957 case 4: | |
958 /* Keep the video format, as long as the high 8 bits are | |
959 unused or alpha */ | |
960 if ( (vf->Rmask == 0xff) && (vf->Bmask == 0xff0000) ) { | |
961 rmask = 0xff; | |
962 bmask = 0xff0000; | |
963 } | |
964 break; | |
965 | |
966 default: | |
967 /* We have no other optimised formats right now. When/if a new | |
968 optimised alpha format is written, add the converter here */ | |
969 break; | |
970 } | |
971 format = SDL_AllocFormat(32, rmask, gmask, bmask, amask); | |
972 flags = SDL_PublicSurface->flags & SDL_HWSURFACE; | |
973 flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); | |
974 converted = SDL_ConvertSurface(surface, format, flags); | |
975 SDL_FreeFormat(format); | |
976 return(converted); | |
977 } | |
978 | |
979 /* | |
980 * Update a specific portion of the physical screen | |
981 */ | |
982 void SDL_UpdateRect(SDL_Surface *screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h) | |
983 { | |
984 if ( screen ) { | |
985 SDL_Rect rect; | |
986 | |
987 /* Perform some checking */ | |
988 if ( w == 0 ) | |
989 w = screen->w; | |
990 if ( h == 0 ) | |
991 h = screen->h; | |
992 if ( (int)(x+w) > screen->w ) | |
993 return; | |
994 if ( (int)(y+h) > screen->h ) | |
995 return; | |
996 | |
997 /* Fill the rectangle */ | |
998 rect.x = x; | |
999 rect.y = y; | |
1000 rect.w = w; | |
1001 rect.h = h; | |
1002 SDL_UpdateRects(screen, 1, &rect); | |
1003 } | |
1004 } | |
1005 void SDL_UpdateRects (SDL_Surface *screen, int numrects, SDL_Rect *rects) | |
1006 { | |
1007 int i; | |
1008 SDL_VideoDevice *video = current_video; | |
1009 SDL_VideoDevice *this = current_video; | |
1010 | |
1011 if ( screen == SDL_ShadowSurface ) { | |
1012 /* Blit the shadow surface using saved mapping */ | |
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1013 SDL_Palette *pal = screen->format->palette; |
0 | 1014 SDL_Color *saved_colors = NULL; |
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1015 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
0 | 1016 /* simulated 8bpp, use correct physical palette */ |
1017 saved_colors = pal->colors; | |
1018 if ( video->gammacols ) { | |
1019 /* gamma-corrected palette */ | |
1020 pal->colors = video->gammacols; | |
1021 } else if ( video->physpal ) { | |
1022 /* physical palette different from logical */ | |
1023 pal->colors = video->physpal->colors; | |
1024 } | |
1025 } | |
1026 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { | |
1027 SDL_LockCursor(); | |
1028 SDL_DrawCursor(SDL_ShadowSurface); | |
1029 for ( i=0; i<numrects; ++i ) { | |
1030 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
1031 SDL_VideoSurface, &rects[i]); | |
1032 } | |
1033 SDL_EraseCursor(SDL_ShadowSurface); | |
1034 SDL_UnlockCursor(); | |
1035 } else { | |
1036 for ( i=0; i<numrects; ++i ) { | |
1037 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
1038 SDL_VideoSurface, &rects[i]); | |
1039 } | |
1040 } | |
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1041 if ( saved_colors ) { |
0 | 1042 pal->colors = saved_colors; |
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1043 } |
0 | 1044 |
1045 /* Fall through to video surface update */ | |
1046 screen = SDL_VideoSurface; | |
1047 } | |
1048 if ( screen == SDL_VideoSurface ) { | |
1049 /* Update the video surface */ | |
1050 if ( screen->offset ) { | |
1051 for ( i=0; i<numrects; ++i ) { | |
1052 rects[i].x += video->offset_x; | |
1053 rects[i].y += video->offset_y; | |
1054 } | |
1055 video->UpdateRects(this, numrects, rects); | |
1056 for ( i=0; i<numrects; ++i ) { | |
1057 rects[i].x -= video->offset_x; | |
1058 rects[i].y -= video->offset_y; | |
1059 } | |
1060 } else { | |
1061 video->UpdateRects(this, numrects, rects); | |
1062 } | |
1063 } | |
1064 } | |
1065 | |
1066 /* | |
1067 * Performs hardware double buffering, if possible, or a full update if not. | |
1068 */ | |
1069 int SDL_Flip(SDL_Surface *screen) | |
1070 { | |
1071 SDL_VideoDevice *video = current_video; | |
1072 /* Copy the shadow surface to the video surface */ | |
1073 if ( screen == SDL_ShadowSurface ) { | |
1074 SDL_Rect rect; | |
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1075 SDL_Palette *pal = screen->format->palette; |
0 | 1076 SDL_Color *saved_colors = NULL; |
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1077 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
0 | 1078 /* simulated 8bpp, use correct physical palette */ |
1079 saved_colors = pal->colors; | |
1080 if ( video->gammacols ) { | |
1081 /* gamma-corrected palette */ | |
1082 pal->colors = video->gammacols; | |
1083 } else if ( video->physpal ) { | |
1084 /* physical palette different from logical */ | |
1085 pal->colors = video->physpal->colors; | |
1086 } | |
1087 } | |
1088 | |
1089 rect.x = 0; | |
1090 rect.y = 0; | |
1091 rect.w = screen->w; | |
1092 rect.h = screen->h; | |
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1093 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { |
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1094 SDL_LockCursor(); |
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1095 SDL_DrawCursor(SDL_ShadowSurface); |
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1096 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1097 SDL_VideoSurface, &rect); |
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1098 SDL_EraseCursor(SDL_ShadowSurface); |
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1099 SDL_UnlockCursor(); |
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1100 } else { |
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1101 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1102 SDL_VideoSurface, &rect); |
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1103 } |
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1104 if ( saved_colors ) { |
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1105 pal->colors = saved_colors; |
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1106 } |
0 | 1107 |
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1108 /* Fall through to video surface update */ |
0 | 1109 screen = SDL_VideoSurface; |
1110 } | |
1111 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
1112 SDL_VideoDevice *this = current_video; | |
1113 return(video->FlipHWSurface(this, SDL_VideoSurface)); | |
1114 } else { | |
1115 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
1116 } | |
1117 return(0); | |
1118 } | |
1119 | |
1120 static void SetPalette_logical(SDL_Surface *screen, SDL_Color *colors, | |
1121 int firstcolor, int ncolors) | |
1122 { | |
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1123 SDL_Palette *pal = screen->format->palette; |
0 | 1124 SDL_Palette *vidpal; |
1125 | |
1126 if ( colors != (pal->colors + firstcolor) ) { | |
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1127 memcpy(pal->colors + firstcolor, colors, |
0 | 1128 ncolors * sizeof(*colors)); |
1129 } | |
1130 | |
1131 vidpal = SDL_VideoSurface->format->palette; | |
1132 if ( (screen == SDL_ShadowSurface) && vidpal ) { | |
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1133 /* |
0 | 1134 * This is a shadow surface, and the physical |
1135 * framebuffer is also indexed. Propagate the | |
1136 * changes to its logical palette so that | |
1137 * updates are always identity blits | |
1138 */ | |
1139 memcpy(vidpal->colors + firstcolor, colors, | |
1140 ncolors * sizeof(*colors)); | |
1141 } | |
1142 SDL_FormatChanged(screen); | |
1143 } | |
1144 | |
1145 static int SetPalette_physical(SDL_Surface *screen, | |
1146 SDL_Color *colors, int firstcolor, int ncolors) | |
1147 { | |
1148 SDL_VideoDevice *video = current_video; | |
1149 int gotall = 1; | |
1150 | |
1151 if ( video->physpal ) { | |
1152 /* We need to copy the new colors, since we haven't | |
1153 * already done the copy in the logical set above. | |
1154 */ | |
1155 memcpy(video->physpal->colors + firstcolor, | |
1156 colors, ncolors * sizeof(*colors)); | |
1157 } | |
1158 if ( screen == SDL_ShadowSurface ) { | |
1159 if ( SDL_VideoSurface->flags & SDL_HWPALETTE ) { | |
1160 /* | |
1161 * The real screen is also indexed - set its physical | |
1162 * palette. The physical palette does not include the | |
1163 * gamma modification, we apply it directly instead, | |
1164 * but this only happens if we have hardware palette. | |
1165 */ | |
1166 screen = SDL_VideoSurface; | |
1167 } else { | |
1168 /* | |
1169 * The video surface is not indexed - invalidate any | |
1170 * active shadow-to-video blit mappings. | |
1171 */ | |
1172 if ( screen->map->dst == SDL_VideoSurface ) { | |
1173 SDL_InvalidateMap(screen->map); | |
1174 } | |
1175 if ( video->gamma ) { | |
1176 if( ! video->gammacols ) { | |
1177 SDL_Palette *pp = video->physpal; | |
1178 if(!pp) | |
1179 pp = screen->format->palette; | |
1180 video->gammacols = malloc(pp->ncolors | |
1181 * sizeof(SDL_Color)); | |
1182 SDL_ApplyGamma(video->gamma, | |
1183 pp->colors, | |
1184 video->gammacols, | |
1185 pp->ncolors); | |
1186 } else { | |
1187 SDL_ApplyGamma(video->gamma, colors, | |
1188 video->gammacols | |
1189 + firstcolor, | |
1190 ncolors); | |
1191 } | |
1192 } | |
1193 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
1194 } | |
1195 } | |
1196 | |
1197 if ( screen == SDL_VideoSurface ) { | |
1198 SDL_Color gcolors[256]; | |
1199 | |
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1200 if ( video->gamma ) { |
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1201 SDL_ApplyGamma(video->gamma, colors, gcolors, ncolors); |
0 | 1202 colors = gcolors; |
1203 } | |
1204 gotall = video->SetColors(video, firstcolor, ncolors, colors); | |
1205 if ( ! gotall ) { | |
1206 /* The video flags shouldn't have SDL_HWPALETTE, and | |
1207 the video driver is responsible for copying back the | |
1208 correct colors into the video surface palette. | |
1209 */ | |
1210 ; | |
1211 } | |
1212 SDL_CursorPaletteChanged(); | |
1213 } | |
1214 return gotall; | |
1215 } | |
1216 | |
1217 /* | |
1218 * Set the physical and/or logical colormap of a surface: | |
1219 * Only the screen has a physical colormap. It determines what is actually | |
1220 * sent to the display. | |
1221 * The logical colormap is used to map blits to/from the surface. | |
1222 * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL | |
1223 * | |
1224 * Return nonzero if all colours were set as requested, or 0 otherwise. | |
1225 */ | |
1226 int SDL_SetPalette(SDL_Surface *screen, int which, | |
1227 SDL_Color *colors, int firstcolor, int ncolors) | |
1228 { | |
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|
1229 SDL_Palette *pal; |
0 | 1230 int gotall; |
1231 int palsize; | |
1232 | |
34 | 1233 if ( ! current_video ) { |
1234 return 0; | |
1235 } | |
0 | 1236 if ( screen != SDL_PublicSurface ) { |
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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diff
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|
1237 /* only screens have physical palettes */ |
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
1238 which &= ~SDL_PHYSPAL; |
0 | 1239 } else if( (screen->flags & SDL_HWPALETTE) != SDL_HWPALETTE ) { |
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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656
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|
1240 /* hardware palettes required for split colormaps */ |
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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656
diff
changeset
|
1241 which |= SDL_PHYSPAL | SDL_LOGPAL; |
0 | 1242 } |
1243 | |
1244 /* Verify the parameters */ | |
1245 pal = screen->format->palette; | |
1246 if( !pal ) { | |
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
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|
1247 return 0; /* not a palettized surface */ |
0 | 1248 } |
1249 gotall = 1; | |
1250 palsize = 1 << screen->format->BitsPerPixel; | |
1251 if ( ncolors > (palsize - firstcolor) ) { | |
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1252 ncolors = (palsize - firstcolor); |
0 | 1253 gotall = 0; |
1254 } | |
1255 | |
1256 if ( which & SDL_LOGPAL ) { | |
1257 /* | |
1258 * Logical palette change: The actual screen isn't affected, | |
1259 * but the internal colormap is altered so that the | |
1260 * interpretation of the pixel values (for blits etc) is | |
1261 * changed. | |
1262 */ | |
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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656
diff
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|
1263 SetPalette_logical(screen, colors, firstcolor, ncolors); |
0 | 1264 } |
1265 if ( which & SDL_PHYSPAL ) { | |
1266 SDL_VideoDevice *video = current_video; | |
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1267 /* |
0 | 1268 * Physical palette change: This doesn't affect the |
1269 * program's idea of what the screen looks like, but changes | |
1270 * its actual appearance. | |
1271 */ | |
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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656
diff
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|
1272 if(!video) |
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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656
diff
changeset
|
1273 return gotall; /* video not yet initialized */ |
0 | 1274 if(!video->physpal && !(which & SDL_LOGPAL) ) { |
1275 /* Lazy physical palette allocation */ | |
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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changeset
|
1276 int size; |
0 | 1277 SDL_Palette *pp = malloc(sizeof(*pp)); |
944
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
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diff
changeset
|
1278 if ( !pp ) { |
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1279 return 0; |
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1280 } |
0 | 1281 current_video->physpal = pp; |
1282 pp->ncolors = pal->ncolors; | |
1283 size = pp->ncolors * sizeof(SDL_Color); | |
1284 pp->colors = malloc(size); | |
944
cdea7cbc3e23
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diff
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|
1285 if ( !pp->colors ) { |
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1286 return 0; |
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
1287 } |
0 | 1288 memcpy(pp->colors, pal->colors, size); |
1289 } | |
1290 if ( ! SetPalette_physical(screen, | |
1291 colors, firstcolor, ncolors) ) { | |
1292 gotall = 0; | |
1293 } | |
1294 } | |
1295 return gotall; | |
1296 } | |
1297 | |
1298 int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor, | |
1299 int ncolors) | |
1300 { | |
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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656
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changeset
|
1301 return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, |
0 | 1302 colors, firstcolor, ncolors); |
1303 } | |
1304 | |
1305 /* | |
1306 * Clean up the video subsystem | |
1307 */ | |
1308 void SDL_VideoQuit (void) | |
1309 { | |
1310 SDL_Surface *ready_to_go; | |
1311 | |
1312 if ( current_video ) { | |
1313 SDL_VideoDevice *video = current_video; | |
1314 SDL_VideoDevice *this = current_video; | |
1315 | |
1316 /* Halt event processing before doing anything else */ | |
1317 SDL_StopEventLoop(); | |
1318 | |
1319 /* Clean up allocated window manager items */ | |
1320 if ( SDL_PublicSurface ) { | |
1321 SDL_PublicSurface = NULL; | |
1322 } | |
1323 SDL_CursorQuit(); | |
1324 | |
1325 /* Just in case... */ | |
1326 SDL_WM_GrabInputOff(); | |
1327 | |
1328 /* Clean up the system video */ | |
1329 video->VideoQuit(this); | |
1330 | |
1331 /* Free any lingering surfaces */ | |
1332 ready_to_go = SDL_ShadowSurface; | |
1333 SDL_ShadowSurface = NULL; | |
1334 SDL_FreeSurface(ready_to_go); | |
1335 if ( SDL_VideoSurface != NULL ) { | |
1336 ready_to_go = SDL_VideoSurface; | |
1337 SDL_VideoSurface = NULL; | |
1338 SDL_FreeSurface(ready_to_go); | |
1339 } | |
1340 SDL_PublicSurface = NULL; | |
1341 | |
1342 /* Clean up miscellaneous memory */ | |
1343 if ( video->physpal ) { | |
1344 free(video->physpal->colors); | |
1345 free(video->physpal); | |
1346 video->physpal = NULL; | |
1347 } | |
1348 if ( video->gammacols ) { | |
1349 free(video->gammacols); | |
1350 video->gammacols = NULL; | |
1351 } | |
1352 if ( video->gamma ) { | |
1353 free(video->gamma); | |
1354 video->gamma = NULL; | |
1355 } | |
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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diff
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|
1356 if ( video->wm_title != NULL ) { |
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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diff
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|
1357 free(video->wm_title); |
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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diff
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|
1358 video->wm_title = NULL; |
0 | 1359 } |
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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diff
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|
1360 if ( video->wm_icon != NULL ) { |
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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47
diff
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|
1361 free(video->wm_icon); |
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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diff
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|
1362 video->wm_icon = NULL; |
0 | 1363 } |
1364 | |
1365 /* Finish cleaning up video subsystem */ | |
1366 video->free(this); | |
1367 current_video = NULL; | |
1368 } | |
1369 return; | |
1370 } | |
1371 | |
1372 /* Load the GL driver library */ | |
1373 int SDL_GL_LoadLibrary(const char *path) | |
1374 { | |
1375 SDL_VideoDevice *video = current_video; | |
1376 SDL_VideoDevice *this = current_video; | |
1377 int retval; | |
1378 | |
1379 retval = -1; | |
423
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More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1380 if ( video == NULL ) { |
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1381 SDL_SetError("Video subsystem has not been initialized"); |
0 | 1382 } else { |
423
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1383 if ( video->GL_LoadLibrary ) { |
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|
1384 retval = video->GL_LoadLibrary(this, path); |
d1565c52ded5
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|
1385 } else { |
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|
1386 SDL_SetError("No dynamic GL support in video driver"); |
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|
1387 } |
0 | 1388 } |
1389 return(retval); | |
1390 } | |
1391 | |
1392 void *SDL_GL_GetProcAddress(const char* proc) | |
1393 { | |
1394 SDL_VideoDevice *video = current_video; | |
1395 SDL_VideoDevice *this = current_video; | |
1396 void *func; | |
1397 | |
1398 func = NULL; | |
1399 if ( video->GL_GetProcAddress ) { | |
1400 if ( video->gl_config.driver_loaded ) { | |
1401 func = video->GL_GetProcAddress(this, proc); | |
1402 } else { | |
1403 SDL_SetError("No GL driver has been loaded"); | |
1404 } | |
1405 } else { | |
1406 SDL_SetError("No dynamic GL support in video driver"); | |
1407 } | |
1408 return func; | |
1409 } | |
1410 | |
1411 /* Set the specified GL attribute for setting up a GL video mode */ | |
1412 int SDL_GL_SetAttribute( SDL_GLattr attr, int value ) | |
1413 { | |
1414 int retval; | |
1415 SDL_VideoDevice *video = current_video; | |
1416 | |
1417 retval = 0; | |
1418 switch (attr) { | |
1419 case SDL_GL_RED_SIZE: | |
1420 video->gl_config.red_size = value; | |
1421 break; | |
1422 case SDL_GL_GREEN_SIZE: | |
1423 video->gl_config.green_size = value; | |
1424 break; | |
1425 case SDL_GL_BLUE_SIZE: | |
1426 video->gl_config.blue_size = value; | |
1427 break; | |
1428 case SDL_GL_ALPHA_SIZE: | |
1429 video->gl_config.alpha_size = value; | |
1430 break; | |
1431 case SDL_GL_DOUBLEBUFFER: | |
1432 video->gl_config.double_buffer = value; | |
1433 break; | |
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|
1434 case SDL_GL_BUFFER_SIZE: |
66c02f83f5bf
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|
1435 video->gl_config.buffer_size = value; |
0 | 1436 break; |
1437 case SDL_GL_DEPTH_SIZE: | |
1438 video->gl_config.depth_size = value; | |
1439 break; | |
1440 case SDL_GL_STENCIL_SIZE: | |
1441 video->gl_config.stencil_size = value; | |
1442 break; | |
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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433
diff
changeset
|
1443 case SDL_GL_ACCUM_RED_SIZE: |
0 | 1444 video->gl_config.accum_red_size = value; |
1445 break; | |
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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433
diff
changeset
|
1446 case SDL_GL_ACCUM_GREEN_SIZE: |
0 | 1447 video->gl_config.accum_green_size = value; |
1448 break; | |
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
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|
1449 case SDL_GL_ACCUM_BLUE_SIZE: |
0 | 1450 video->gl_config.accum_blue_size = value; |
1451 break; | |
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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433
diff
changeset
|
1452 case SDL_GL_ACCUM_ALPHA_SIZE: |
0 | 1453 video->gl_config.accum_alpha_size = value; |
1454 break; | |
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1455 case SDL_GL_STEREO: |
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
1456 video->gl_config.stereo = value; |
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
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|
1457 break; |
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
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|
1458 case SDL_GL_MULTISAMPLEBUFFERS: |
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
1459 video->gl_config.multisamplebuffers = value; |
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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diff
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|
1460 break; |
656
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Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
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|
1461 case SDL_GL_MULTISAMPLESAMPLES: |
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
1462 video->gl_config.multisamplesamples = value; |
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1463 break; |
0 | 1464 default: |
1465 SDL_SetError("Unknown OpenGL attribute"); | |
1466 retval = -1; | |
1467 break; | |
1468 } | |
1469 return(retval); | |
1470 } | |
1471 | |
1472 /* Retrieve an attribute value from the windowing system. */ | |
1473 int SDL_GL_GetAttribute(SDL_GLattr attr, int* value) | |
1474 { | |
1475 int retval = -1; | |
1476 SDL_VideoDevice* video = current_video; | |
1477 SDL_VideoDevice* this = current_video; | |
1478 | |
1479 if ( video->GL_GetAttribute ) { | |
1480 retval = this->GL_GetAttribute(this, attr, value); | |
11
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1481 } else { |
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1482 *value = 0; |
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1483 SDL_SetError("GL_GetAttribute not supported"); |
0 | 1484 } |
1485 return retval; | |
1486 } | |
1487 | |
1488 /* Perform a GL buffer swap on the current GL context */ | |
1489 void SDL_GL_SwapBuffers(void) | |
1490 { | |
1491 SDL_VideoDevice *video = current_video; | |
1492 SDL_VideoDevice *this = current_video; | |
1493 | |
1494 if ( video->screen->flags & SDL_OPENGL ) { | |
266
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|
1495 video->GL_SwapBuffers(this); |
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1496 } else { |
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1497 SDL_SetError("OpenGL video mode has not been set"); |
0 | 1498 } |
1499 } | |
1500 | |
1501 /* Update rects with locking */ | |
1502 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect *rects) | |
1503 { | |
1504 SDL_GL_Lock(); | |
1505 SDL_GL_UpdateRects(numrects, rects); | |
1506 SDL_GL_Unlock(); | |
1507 } | |
1508 | |
1509 /* Update rects without state setting and changing (the caller is responsible for it) */ | |
1510 void SDL_GL_UpdateRects(int numrects, SDL_Rect *rects) | |
1511 { | |
1512 #ifdef HAVE_OPENGL | |
1513 SDL_VideoDevice *this = current_video; | |
1514 SDL_Rect update, tmp; | |
1515 int x, y, i; | |
1516 | |
1517 for ( i = 0; i < numrects; i++ ) | |
1518 { | |
1519 tmp.y = rects[i].y; | |
1520 tmp.h = rects[i].h; | |
1521 for ( y = 0; y <= rects[i].h / 256; y++ ) | |
1522 { | |
1523 tmp.x = rects[i].x; | |
1524 tmp.w = rects[i].w; | |
1525 for ( x = 0; x <= rects[i].w / 256; x++ ) | |
1526 { | |
1527 update.x = tmp.x; | |
1528 update.y = tmp.y; | |
1529 update.w = tmp.w; | |
1530 update.h = tmp.h; | |
1531 | |
1532 if ( update.w > 256 ) | |
1533 update.w = 256; | |
1534 | |
1535 if ( update.h > 256 ) | |
1536 update.h = 256; | |
1537 | |
1538 this->glFlush(); | |
1539 this->glTexSubImage2D( | |
1540 GL_TEXTURE_2D, | |
1541 0, | |
1542 0, | |
1543 0, | |
1544 update.w, | |
1545 update.h, | |
1546 this->is_32bit? GL_RGBA : GL_RGB, | |
1547 #ifdef GL_VERSION_1_2 | |
1548 this->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
1549 #else | |
1550 GL_UNSIGNED_BYTE, | |
1551 #endif | |
1552 (Uint8 *)this->screen->pixels + | |
1553 this->screen->format->BytesPerPixel * update.x + | |
1554 update.y * this->screen->pitch ); | |
1555 | |
1556 this->glFlush(); | |
1557 /* | |
1558 * Note the parens around the function name: | |
1559 * This is because some OpenGL implementations define glTexCoord etc | |
1560 * as macros, and we don't want them expanded here. | |
1561 */ | |
1562 this->glBegin(GL_TRIANGLE_STRIP); | |
1563 (this->glTexCoord2f)( 0.0, 0.0 ); | |
1564 (this->glVertex2i)( update.x, update.y ); | |
1565 (this->glTexCoord2f)( (float)(update.w / 256.0), 0.0 ); | |
1566 (this->glVertex2i)( update.x + update.w, update.y ); | |
1567 (this->glTexCoord2f)( 0.0, (float)(update.h / 256.0) ); | |
1568 (this->glVertex2i)( update.x, update.y + update.h ); | |
1569 (this->glTexCoord2f)( (float)(update.w / 256.0), (float)(update.h / 256.0) ); | |
1570 (this->glVertex2i)( update.x + update.w , update.y + update.h ); | |
1571 this->glEnd(); | |
1572 | |
1573 tmp.x += 256; | |
1574 tmp.w -= 256; | |
1575 } | |
1576 tmp.y += 256; | |
1577 tmp.h -= 256; | |
1578 } | |
1579 } | |
1580 #endif | |
1581 } | |
1582 | |
1583 /* Lock == save current state */ | |
1584 void SDL_GL_Lock() | |
1585 { | |
1586 #ifdef HAVE_OPENGL | |
1587 lock_count--; | |
1588 if (lock_count==-1) | |
1589 { | |
1590 SDL_VideoDevice *this = current_video; | |
1591 | |
1592 this->glPushAttrib( GL_ALL_ATTRIB_BITS ); /* TODO: narrow range of what is saved */ | |
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1593 #ifdef GL_CLIENT_PIXEL_STORE_BIT |
0 | 1594 this->glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT ); |
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1595 #endif |
0 | 1596 |
1597 this->glEnable(GL_TEXTURE_2D); | |
1598 this->glEnable(GL_BLEND); | |
1599 this->glDisable(GL_FOG); | |
1600 this->glDisable(GL_ALPHA_TEST); | |
1601 this->glDisable(GL_DEPTH_TEST); | |
1602 this->glDisable(GL_SCISSOR_TEST); | |
1603 this->glDisable(GL_STENCIL_TEST); | |
1604 this->glDisable(GL_CULL_FACE); | |
1605 | |
1606 this->glBindTexture( GL_TEXTURE_2D, this->texture ); | |
1607 this->glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); | |
1608 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); | |
1609 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); | |
1610 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); | |
1611 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT ); | |
1612 | |
1613 this->glPixelStorei( GL_UNPACK_ROW_LENGTH, this->screen->pitch / this->screen->format->BytesPerPixel ); | |
1614 this->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
1615 (this->glColor4f)(1.0, 1.0, 1.0, 1.0); /* Solaris workaround */ | |
1616 | |
1617 this->glViewport(0, 0, this->screen->w, this->screen->h); | |
1618 this->glMatrixMode(GL_PROJECTION); | |
1619 this->glPushMatrix(); | |
1620 this->glLoadIdentity(); | |
1621 | |
1622 this->glOrtho(0.0, (GLdouble) this->screen->w, (GLdouble) this->screen->h, 0.0, 0.0, 1.0); | |
1623 | |
1624 this->glMatrixMode(GL_MODELVIEW); | |
1625 this->glPushMatrix(); | |
1626 this->glLoadIdentity(); | |
1627 } | |
1628 #endif | |
1629 } | |
1630 | |
1631 /* Unlock == restore saved state */ | |
1632 void SDL_GL_Unlock() | |
1633 { | |
1634 #ifdef HAVE_OPENGL | |
1635 lock_count++; | |
1636 if (lock_count==0) | |
1637 { | |
1638 SDL_VideoDevice *this = current_video; | |
1639 | |
1640 this->glPopMatrix(); | |
1641 this->glMatrixMode(GL_PROJECTION); | |
1642 this->glPopMatrix(); | |
1643 | |
1644 this->glPopClientAttrib(); | |
1645 this->glPopAttrib(); | |
1646 } | |
1647 #endif | |
1648 } | |
1649 | |
1650 /* | |
1651 * Sets/Gets the title and icon text of the display window, if any. | |
1652 */ | |
1653 void SDL_WM_SetCaption (const char *title, const char *icon) | |
1654 { | |
1655 SDL_VideoDevice *video = current_video; | |
1656 SDL_VideoDevice *this = current_video; | |
1657 | |
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1658 if ( video ) { |
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1659 if ( title ) { |
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1660 if ( video->wm_title ) { |
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1661 free(video->wm_title); |
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1662 } |
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1663 video->wm_title = (char *)malloc(strlen(title)+1); |
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1664 if ( video->wm_title != NULL ) { |
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1665 strcpy(video->wm_title, title); |
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1666 } |
0 | 1667 } |
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1668 if ( icon ) { |
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1669 if ( video->wm_icon ) { |
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1670 free(video->wm_icon); |
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1671 } |
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1672 video->wm_icon = (char *)malloc(strlen(icon)+1); |
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1673 if ( video->wm_icon != NULL ) { |
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1674 strcpy(video->wm_icon, icon); |
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1675 } |
0 | 1676 } |
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1677 if ( (title || icon) && (video->SetCaption != NULL) ) { |
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1678 video->SetCaption(this, video->wm_title,video->wm_icon); |
0 | 1679 } |
1680 } | |
1681 } | |
1682 void SDL_WM_GetCaption (char **title, char **icon) | |
1683 { | |
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1684 SDL_VideoDevice *video = current_video; |
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1685 |
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1686 if ( video ) { |
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1687 if ( title ) { |
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1688 *title = video->wm_title; |
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1689 } |
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1690 if ( icon ) { |
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1691 *icon = video->wm_icon; |
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1692 } |
0 | 1693 } |
1694 } | |
1695 | |
541
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1696 /* Utility function used by SDL_WM_SetIcon(); |
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1697 * flags & 1 for color key, flags & 2 for alpha channel. */ |
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1698 static void CreateMaskFromColorKeyOrAlpha(SDL_Surface *icon, Uint8 *mask, int flags) |
0 | 1699 { |
1700 int x, y; | |
1701 Uint32 colorkey; | |
1702 #define SET_MASKBIT(icon, x, y, mask) \ | |
1703 mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8))) | |
1704 | |
1705 colorkey = icon->format->colorkey; | |
1706 switch (icon->format->BytesPerPixel) { | |
1707 case 1: { Uint8 *pixels; | |
1708 for ( y=0; y<icon->h; ++y ) { | |
1709 pixels = (Uint8 *)icon->pixels + y*icon->pitch; | |
1710 for ( x=0; x<icon->w; ++x ) { | |
1711 if ( *pixels++ == colorkey ) { | |
1712 SET_MASKBIT(icon, x, y, mask); | |
1713 } | |
1714 } | |
1715 } | |
1716 } | |
1717 break; | |
1718 | |
1719 case 2: { Uint16 *pixels; | |
1720 for ( y=0; y<icon->h; ++y ) { | |
1721 pixels = (Uint16 *)icon->pixels + | |
1722 y*icon->pitch/2; | |
1723 for ( x=0; x<icon->w; ++x ) { | |
541
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1724 if ( (flags & 1) && *pixels == colorkey ) { |
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1725 SET_MASKBIT(icon, x, y, mask); |
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1726 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
0 | 1727 SET_MASKBIT(icon, x, y, mask); |
1728 } | |
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1729 pixels++; |
0 | 1730 } |
1731 } | |
1732 } | |
1733 break; | |
1734 | |
1735 case 4: { Uint32 *pixels; | |
1736 for ( y=0; y<icon->h; ++y ) { | |
1737 pixels = (Uint32 *)icon->pixels + | |
1738 y*icon->pitch/4; | |
1739 for ( x=0; x<icon->w; ++x ) { | |
541
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1740 if ( (flags & 1) && *pixels == colorkey ) { |
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1741 SET_MASKBIT(icon, x, y, mask); |
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1742 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
0 | 1743 SET_MASKBIT(icon, x, y, mask); |
1744 } | |
541
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1745 pixels++; |
0 | 1746 } |
1747 } | |
1748 } | |
1749 break; | |
1750 } | |
1751 } | |
1752 | |
1753 /* | |
1754 * Sets the window manager icon for the display window. | |
1755 */ | |
1756 void SDL_WM_SetIcon (SDL_Surface *icon, Uint8 *mask) | |
1757 { | |
1758 SDL_VideoDevice *video = current_video; | |
1759 SDL_VideoDevice *this = current_video; | |
1760 | |
1761 if ( icon && video->SetIcon ) { | |
1762 /* Generate a mask if necessary, and create the icon! */ | |
1763 if ( mask == NULL ) { | |
1764 int mask_len = icon->h*(icon->w+7)/8; | |
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1765 int flags = 0; |
0 | 1766 mask = (Uint8 *)malloc(mask_len); |
1767 if ( mask == NULL ) { | |
1768 return; | |
1769 } | |
1770 memset(mask, ~0, mask_len); | |
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1771 if ( icon->flags & SDL_SRCCOLORKEY ) flags |= 1; |
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1772 if ( icon->flags & SDL_SRCALPHA ) flags |= 2; |
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1773 if( flags ) { |
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1774 CreateMaskFromColorKeyOrAlpha(icon, mask, flags); |
0 | 1775 } |
1776 video->SetIcon(video, icon, mask); | |
1777 free(mask); | |
1778 } else { | |
1779 video->SetIcon(this, icon, mask); | |
1780 } | |
1781 } | |
1782 } | |
1783 | |
1784 /* | |
1785 * Grab or ungrab the keyboard and mouse input. | |
1786 * This function returns the final grab mode after calling the | |
1787 * driver dependent function. | |
1788 */ | |
1789 static SDL_GrabMode SDL_WM_GrabInputRaw(SDL_GrabMode mode) | |
1790 { | |
1791 SDL_VideoDevice *video = current_video; | |
1792 SDL_VideoDevice *this = current_video; | |
1793 | |
1794 /* Only do something if we have support for grabs */ | |
1795 if ( video->GrabInput == NULL ) { | |
1796 return(video->input_grab); | |
1797 } | |
1798 | |
1799 /* If the final grab mode if off, only then do we actually grab */ | |
1800 #ifdef DEBUG_GRAB | |
1801 printf("SDL_WM_GrabInputRaw(%d) ... ", mode); | |
1802 #endif | |
1803 if ( mode == SDL_GRAB_OFF ) { | |
1804 if ( video->input_grab != SDL_GRAB_OFF ) { | |
1805 mode = video->GrabInput(this, mode); | |
1806 } | |
1807 } else { | |
1808 if ( video->input_grab == SDL_GRAB_OFF ) { | |
1809 mode = video->GrabInput(this, mode); | |
1810 } | |
1811 } | |
1812 if ( mode != video->input_grab ) { | |
1813 video->input_grab = mode; | |
1814 if ( video->CheckMouseMode ) { | |
1815 video->CheckMouseMode(this); | |
1816 } | |
1817 } | |
1818 #ifdef DEBUG_GRAB | |
1819 printf("Final mode %d\n", video->input_grab); | |
1820 #endif | |
1821 | |
1822 /* Return the final grab state */ | |
1823 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
1824 mode -= SDL_GRAB_FULLSCREEN; | |
1825 } | |
1826 return(mode); | |
1827 } | |
1828 SDL_GrabMode SDL_WM_GrabInput(SDL_GrabMode mode) | |
1829 { | |
1830 SDL_VideoDevice *video = current_video; | |
1831 | |
11
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1832 /* If the video isn't initialized yet, we can't do anything */ |
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1833 if ( ! video ) { |
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1834 return SDL_GRAB_OFF; |
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1835 } |
0 | 1836 |
1837 /* Return the current mode on query */ | |
1838 if ( mode == SDL_GRAB_QUERY ) { | |
1839 mode = video->input_grab; | |
1840 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
1841 mode -= SDL_GRAB_FULLSCREEN; | |
1842 } | |
1843 return(mode); | |
1844 } | |
1845 | |
1846 #ifdef DEBUG_GRAB | |
1847 printf("SDL_WM_GrabInput(%d) ... ", mode); | |
1848 #endif | |
1849 /* If the video surface is fullscreen, we always grab */ | |
1850 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
1851 mode -= SDL_GRAB_FULLSCREEN; | |
1852 } | |
1853 if ( SDL_VideoSurface && (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { | |
1854 mode += SDL_GRAB_FULLSCREEN; | |
1855 } | |
1856 return(SDL_WM_GrabInputRaw(mode)); | |
1857 } | |
1858 static SDL_GrabMode SDL_WM_GrabInputOff(void) | |
1859 { | |
1860 SDL_GrabMode mode; | |
1861 | |
1862 /* First query the current grab state */ | |
1863 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
1864 | |
1865 /* Now explicitly turn off input grab */ | |
1866 SDL_WM_GrabInputRaw(SDL_GRAB_OFF); | |
1867 | |
1868 /* Return the old state */ | |
1869 return(mode); | |
1870 } | |
1871 | |
1872 /* | |
1873 * Iconify the window in window managed environments. | |
1874 * A successful iconification will result in an SDL_APPACTIVE loss event. | |
1875 */ | |
1876 int SDL_WM_IconifyWindow(void) | |
1877 { | |
1878 SDL_VideoDevice *video = current_video; | |
1879 SDL_VideoDevice *this = current_video; | |
1880 int retval; | |
1881 | |
1882 retval = 0; | |
1883 if ( video->IconifyWindow ) { | |
1884 retval = video->IconifyWindow(this); | |
1885 } | |
1886 return(retval); | |
1887 } | |
1888 | |
1889 /* | |
1890 * Toggle fullscreen mode | |
1891 */ | |
1892 int SDL_WM_ToggleFullScreen(SDL_Surface *surface) | |
1893 { | |
1894 SDL_VideoDevice *video = current_video; | |
1895 SDL_VideoDevice *this = current_video; | |
1896 int toggled; | |
1897 | |
1898 toggled = 0; | |
1899 if ( SDL_PublicSurface && (surface == SDL_PublicSurface) && | |
1900 video->ToggleFullScreen ) { | |
1901 if ( surface->flags & SDL_FULLSCREEN ) { | |
1902 toggled = video->ToggleFullScreen(this, 0); | |
1903 if ( toggled ) { | |
1904 SDL_VideoSurface->flags &= ~SDL_FULLSCREEN; | |
1905 SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; | |
1906 } | |
1907 } else { | |
1908 toggled = video->ToggleFullScreen(this, 1); | |
1909 if ( toggled ) { | |
1910 SDL_VideoSurface->flags |= SDL_FULLSCREEN; | |
1911 SDL_PublicSurface->flags |= SDL_FULLSCREEN; | |
1912 } | |
1913 } | |
1914 /* Double-check the grab state inside SDL_WM_GrabInput() */ | |
1915 if ( toggled ) { | |
1916 SDL_WM_GrabInput(video->input_grab); | |
1917 } | |
1918 } | |
1919 return(toggled); | |
1920 } | |
1921 | |
1922 /* | |
1923 * Get some platform dependent window manager information | |
1924 */ | |
1925 int SDL_GetWMInfo (SDL_SysWMinfo *info) | |
1926 { | |
1927 SDL_VideoDevice *video = current_video; | |
1928 SDL_VideoDevice *this = current_video; | |
1929 | |
1930 if ( video && video->GetWMInfo ) { | |
1931 return(video->GetWMInfo(this, info)); | |
1932 } else { | |
1933 return(0); | |
1934 } | |
1935 } |