Mercurial > sdl-ios-xcode
annotate src/video/SDL_video.c @ 1525:23a347cfbed8
Fixed bug #38
I'm using SDL 1.2.9 with Visual C++ 7.0 on Windows 2000.
Here's the setup: my game starts in a window, with
SDL_WM_GrabInput(SDL_GRAB_ON) to constrain the cursor to the game window. The
mouse cursor is outside of the window when the game launches, and when the
window appears the cursor is grabbed and placed at the top left corner of the
inside of the game window. At this point, if I click the mouse without moving
it, the SDL_MOUSEBUTTONDOWN event's mouse coordinates are (65535,65535).
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 14 Mar 2006 06:00:30 +0000 |
| parents | cf23b92602aa |
| children | 8d9bb0cf2c2a |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 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 | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
|
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 /* The high-level video driver subsystem */ | |
| 25 | |
| 26 #include "SDL.h" | |
| 27 #include "SDL_sysvideo.h" | |
| 28 #include "SDL_blit.h" | |
| 29 #include "SDL_pixels_c.h" | |
| 30 #include "SDL_cursor_c.h" | |
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31 #include "../events/SDL_sysevents.h" |
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32 #include "../events/SDL_events_c.h" |
| 0 | 33 |
| 34 /* Available video drivers */ | |
| 35 static VideoBootStrap *bootstrap[] = { | |
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36 #if SDL_VIDEO_DRIVER_QUARTZ |
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37 &QZ_bootstrap, |
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38 #endif |
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39 #if SDL_VIDEO_DRIVER_X11 |
| 0 | 40 &X11_bootstrap, |
| 41 #endif | |
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42 #if SDL_VIDEO_DRIVER_DGA |
| 0 | 43 &DGA_bootstrap, |
| 44 #endif | |
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45 #if SDL_VIDEO_DRIVER_NANOX |
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46 &NX_bootstrap, |
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47 #endif |
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48 #if SDL_VIDEO_DRIVER_IPOD |
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49 &iPod_bootstrap, |
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50 #endif |
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51 #if SDL_VIDEO_DRIVER_QTOPIA |
| 567 | 52 &Qtopia_bootstrap, |
| 53 #endif | |
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54 #if SDL_VIDEO_DRIVER_WSCONS |
| 1187 | 55 &WSCONS_bootstrap, |
| 56 #endif | |
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57 #if SDL_VIDEO_DRIVER_FBCON |
| 0 | 58 &FBCON_bootstrap, |
| 59 #endif | |
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60 #if SDL_VIDEO_DRIVER_DIRECTFB |
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61 &DirectFB_bootstrap, |
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62 #endif |
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63 #if SDL_VIDEO_DRIVER_PS2GS |
| 0 | 64 &PS2GS_bootstrap, |
| 65 #endif | |
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66 #if SDL_VIDEO_DRIVER_GGI |
| 0 | 67 &GGI_bootstrap, |
| 68 #endif | |
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69 #if SDL_VIDEO_DRIVER_VGL |
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70 &VGL_bootstrap, |
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71 #endif |
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72 #if SDL_VIDEO_DRIVER_SVGALIB |
| 0 | 73 &SVGALIB_bootstrap, |
| 74 #endif | |
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75 #if SDL_VIDEO_DRIVER_GAPI |
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76 &GAPI_bootstrap, |
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77 #endif |
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78 #if SDL_VIDEO_DRIVER_WINDIB |
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79 &WINDIB_bootstrap, |
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80 #endif |
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81 #if SDL_VIDEO_DRIVER_DDRAW |
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82 &DIRECTX_bootstrap, |
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83 #endif |
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84 #if SDL_VIDEO_DRIVER_BWINDOW |
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85 &BWINDOW_bootstrap, |
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86 #endif |
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87 #if SDL_VIDEO_DRIVER_TOOLBOX |
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88 &TOOLBOX_bootstrap, |
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89 #endif |
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90 #if SDL_VIDEO_DRIVER_DRAWSPROCKET |
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91 &DSp_bootstrap, |
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92 #endif |
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93 #if SDL_VIDEO_DRIVER_CYBERGRAPHICS |
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94 &CGX_bootstrap, |
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95 #endif |
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96 #if SDL_VIDEO_DRIVER_PHOTON |
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97 &ph_bootstrap, |
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98 #endif |
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99 #if SDL_VIDEO_DRIVER_EPOC |
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100 &EPOC_bootstrap, |
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101 #endif |
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102 #if SDL_VIDEO_DRIVER_XBIOS |
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103 &XBIOS_bootstrap, |
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104 #endif |
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105 #if SDL_VIDEO_DRIVER_GEM |
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106 &GEM_bootstrap, |
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107 #endif |
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108 #if SDL_VIDEO_DRIVER_PICOGUI |
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109 &PG_bootstrap, |
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110 #endif |
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111 #if SDL_VIDEO_DRIVER_DC |
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112 &DC_bootstrap, |
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113 #endif |
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114 #if SDL_VIDEO_DRIVER_RISCOS |
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115 &RISCOS_bootstrap, |
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116 #endif |
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117 #if SDL_VIDEO_DRIVER_OS2FS |
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118 &OS2FSLib_bootstrap, |
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119 #endif |
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120 #if SDL_VIDEO_DRIVER_AALIB |
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121 &AALIB_bootstrap, |
| 0 | 122 #endif |
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123 #if SDL_VIDEO_DRIVER_DUMMY |
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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); | |
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137 #if SDL_VIDEO_OPENGL |
| 0 | 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 */ | |
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173 if ( SDL_strrchr(driver_name, ':') != NULL ) { |
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174 index = atoi(SDL_strrchr(driver_name, ':')+1); |
| 0 | 175 } |
| 176 #endif | |
| 177 for ( i=0; bootstrap[i]; ++i ) { | |
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178 if ( SDL_strncmp(bootstrap[i]->name, driver_name, |
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179 SDL_strlen(bootstrap[i]->name)) == 0 ) { |
| 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; | |
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214 SDL_memset(&video->info, 0, (sizeof video->info)); |
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215 |
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216 video->displayformatalphapixel = NULL; |
| 0 | 217 |
| 218 /* Set some very sane GL defaults */ | |
| 219 video->gl_config.driver_loaded = 0; | |
| 220 video->gl_config.dll_handle = NULL; | |
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221 video->gl_config.red_size = 3; |
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222 video->gl_config.green_size = 3; |
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223 video->gl_config.blue_size = 2; |
| 0 | 224 video->gl_config.alpha_size = 0; |
| 225 video->gl_config.buffer_size = 0; | |
| 226 video->gl_config.depth_size = 16; | |
| 227 video->gl_config.stencil_size = 0; | |
| 228 video->gl_config.double_buffer = 1; | |
| 229 video->gl_config.accum_red_size = 0; | |
| 230 video->gl_config.accum_green_size = 0; | |
| 231 video->gl_config.accum_blue_size = 0; | |
| 232 video->gl_config.accum_alpha_size = 0; | |
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233 video->gl_config.stereo = 0; |
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234 video->gl_config.multisamplebuffers = 0; |
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235 video->gl_config.multisamplesamples = 0; |
| 0 | 236 |
| 237 /* Initialize the video subsystem */ | |
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238 SDL_memset(&vformat, 0, sizeof(vformat)); |
| 0 | 239 if ( video->VideoInit(video, &vformat) < 0 ) { |
| 240 SDL_VideoQuit(); | |
| 241 return(-1); | |
| 242 } | |
| 243 | |
| 244 /* Create a zero sized video surface of the appropriate format */ | |
| 245 video_flags = SDL_SWSURFACE; | |
| 246 SDL_VideoSurface = SDL_CreateRGBSurface(video_flags, 0, 0, | |
| 247 vformat.BitsPerPixel, | |
| 248 vformat.Rmask, vformat.Gmask, vformat.Bmask, 0); | |
| 249 if ( SDL_VideoSurface == NULL ) { | |
| 250 SDL_VideoQuit(); | |
| 251 return(-1); | |
| 252 } | |
| 253 SDL_PublicSurface = NULL; /* Until SDL_SetVideoMode() */ | |
| 254 | |
| 255 #if 0 /* Don't change the current palette - may be used by other programs. | |
| 256 * The application can't do anything with the display surface until | |
| 257 * a video mode has been set anyway. :) | |
| 258 */ | |
| 259 /* If we have a palettized surface, create a default palette */ | |
| 260 if ( SDL_VideoSurface->format->palette ) { | |
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261 SDL_PixelFormat *vf = SDL_VideoSurface->format; |
| 0 | 262 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 263 video->SetColors(video, | |
| 264 0, vf->palette->ncolors, vf->palette->colors); | |
| 265 } | |
| 266 #endif | |
| 267 video->info.vfmt = SDL_VideoSurface->format; | |
| 268 | |
| 269 /* Start the event loop */ | |
| 270 if ( SDL_StartEventLoop(flags) < 0 ) { | |
| 271 SDL_VideoQuit(); | |
| 272 return(-1); | |
| 273 } | |
| 274 SDL_CursorInit(flags & SDL_INIT_EVENTTHREAD); | |
| 275 | |
| 276 /* We're ready to go! */ | |
| 277 return(0); | |
| 278 } | |
| 279 | |
| 280 char *SDL_VideoDriverName(char *namebuf, int maxlen) | |
| 281 { | |
| 282 if ( current_video != NULL ) { | |
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283 SDL_strlcpy(namebuf, current_video->name, maxlen); |
| 0 | 284 return(namebuf); |
| 285 } | |
| 286 return(NULL); | |
| 287 } | |
| 288 | |
| 289 /* | |
| 290 * Get the current display surface | |
| 291 */ | |
| 292 SDL_Surface *SDL_GetVideoSurface(void) | |
| 293 { | |
| 294 SDL_Surface *visible; | |
| 295 | |
| 296 visible = NULL; | |
| 297 if ( current_video ) { | |
| 298 visible = current_video->visible; | |
| 299 } | |
| 300 return(visible); | |
| 301 } | |
| 302 | |
| 303 /* | |
| 304 * Get the current information about the video hardware | |
| 305 */ | |
| 306 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
| 307 { | |
| 308 const SDL_VideoInfo *info; | |
| 309 | |
| 310 info = NULL; | |
| 311 if ( current_video ) { | |
| 312 info = ¤t_video->info; | |
| 313 } | |
| 314 return(info); | |
| 315 } | |
| 316 | |
| 317 /* | |
| 318 * Return a pointer to an array of available screen dimensions for the | |
| 319 * given format, sorted largest to smallest. Returns NULL if there are | |
| 320 * no dimensions available for a particular format, or (SDL_Rect **)-1 | |
| 321 * if any dimension is okay for the given format. If 'format' is NULL, | |
| 322 * the mode list will be for the format given by SDL_GetVideoInfo()->vfmt | |
| 323 */ | |
| 324 SDL_Rect ** SDL_ListModes (SDL_PixelFormat *format, Uint32 flags) | |
| 325 { | |
| 326 SDL_VideoDevice *video = current_video; | |
| 327 SDL_VideoDevice *this = current_video; | |
| 328 SDL_Rect **modes; | |
| 329 | |
| 330 modes = NULL; | |
| 331 if ( SDL_VideoSurface ) { | |
| 332 if ( format == NULL ) { | |
| 333 format = SDL_VideoSurface->format; | |
| 334 } | |
| 335 modes = video->ListModes(this, format, flags); | |
| 336 } | |
| 337 return(modes); | |
| 338 } | |
| 339 | |
| 340 /* | |
| 341 * Check to see if a particular video mode is supported. | |
| 342 * It returns 0 if the requested mode is not supported under any bit depth, | |
| 343 * or returns the bits-per-pixel of the closest available mode with the | |
| 344 * given width and height. If this bits-per-pixel is different from the | |
| 345 * one used when setting the video mode, SDL_SetVideoMode() will succeed, | |
| 346 * but will emulate the requested bits-per-pixel with a shadow surface. | |
| 347 */ | |
| 348 static Uint8 SDL_closest_depths[4][8] = { | |
| 349 /* 8 bit closest depth ordering */ | |
| 350 { 0, 8, 16, 15, 32, 24, 0, 0 }, | |
| 351 /* 15,16 bit closest depth ordering */ | |
| 352 { 0, 16, 15, 32, 24, 8, 0, 0 }, | |
| 353 /* 24 bit closest depth ordering */ | |
| 354 { 0, 24, 32, 16, 15, 8, 0, 0 }, | |
| 355 /* 32 bit closest depth ordering */ | |
| 356 { 0, 32, 16, 15, 24, 8, 0, 0 } | |
| 357 }; | |
| 358 | |
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359 |
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360 #ifdef __MACOS__ /* MPW optimization bug? */ |
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361 #define NEGATIVE_ONE 0xFFFFFFFF |
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362 #else |
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363 #define NEGATIVE_ONE -1 |
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364 #endif |
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365 |
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366 int SDL_VideoModeOK (int width, int height, int bpp, Uint32 flags) |
| 0 | 367 { |
| 368 int table, b, i; | |
| 369 int supported; | |
| 370 SDL_PixelFormat format; | |
| 371 SDL_Rect **sizes; | |
| 372 | |
| 373 /* Currently 1 and 4 bpp are not supported */ | |
| 374 if ( bpp < 8 || bpp > 32 ) { | |
| 375 return(0); | |
| 376 } | |
|
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377 if ( (width <= 0) || (height <= 0) ) { |
| 0 | 378 return(0); |
| 379 } | |
| 380 | |
| 381 /* Search through the list valid of modes */ | |
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382 SDL_memset(&format, 0, sizeof(format)); |
| 0 | 383 supported = 0; |
| 384 table = ((bpp+7)/8)-1; | |
| 385 SDL_closest_depths[table][0] = bpp; | |
| 386 SDL_closest_depths[table][7] = 0; | |
| 387 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 388 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 389 sizes = SDL_ListModes(&format, flags); | |
| 390 if ( sizes == (SDL_Rect **)0 ) { | |
| 391 /* No sizes supported at this bit-depth */ | |
| 392 continue; | |
| 393 } else | |
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394 if (sizes == (SDL_Rect **)NEGATIVE_ONE) { |
| 0 | 395 /* Any size supported at this bit-depth */ |
| 396 supported = 1; | |
| 397 continue; | |
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398 } else if (current_video->handles_any_size) { |
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399 /* Driver can center a smaller surface to simulate fullscreen */ |
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400 for ( i=0; sizes[i]; ++i ) { |
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401 if ((sizes[i]->w >= width) && (sizes[i]->h >= height)) { |
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402 supported = 1; /* this mode can fit the centered window. */ |
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403 break; |
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404 } |
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405 } |
| 0 | 406 } else |
| 407 for ( i=0; sizes[i]; ++i ) { | |
| 408 if ((sizes[i]->w == width) && (sizes[i]->h == height)) { | |
| 409 supported = 1; | |
| 410 break; | |
| 411 } | |
| 412 } | |
| 413 } | |
| 414 if ( supported ) { | |
| 415 --b; | |
| 416 return(SDL_closest_depths[table][b]); | |
| 417 } else { | |
| 418 return(0); | |
| 419 } | |
| 420 } | |
| 421 | |
| 422 /* | |
| 423 * Get the closest non-emulated video mode to the one requested | |
| 424 */ | |
| 425 static int SDL_GetVideoMode (int *w, int *h, int *BitsPerPixel, Uint32 flags) | |
| 426 { | |
| 427 int table, b, i; | |
| 428 int supported; | |
| 429 int native_bpp; | |
| 430 SDL_PixelFormat format; | |
| 431 SDL_Rect **sizes; | |
| 432 | |
|
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433 /* Check parameters */ |
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434 if ( *BitsPerPixel < 8 || *BitsPerPixel > 32 ) { |
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435 SDL_SetError("Invalid bits per pixel (range is {8...32})"); |
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436 return(0); |
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437 } |
|
430
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438 if ((*w <= 0) || (*h <= 0)) { |
|
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439 SDL_SetError("Invalid width or height"); |
|
430
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440 return(0); |
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441 } |
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442 |
| 0 | 443 /* Try the original video mode, get the closest depth */ |
| 444 native_bpp = SDL_VideoModeOK(*w, *h, *BitsPerPixel, flags); | |
| 445 if ( native_bpp == *BitsPerPixel ) { | |
| 446 return(1); | |
| 447 } | |
| 448 if ( native_bpp > 0 ) { | |
| 449 *BitsPerPixel = native_bpp; | |
| 450 return(1); | |
| 451 } | |
| 452 | |
| 453 /* No exact size match at any depth, look for closest match */ | |
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454 SDL_memset(&format, 0, sizeof(format)); |
| 0 | 455 supported = 0; |
| 456 table = ((*BitsPerPixel+7)/8)-1; | |
| 457 SDL_closest_depths[table][0] = *BitsPerPixel; | |
| 458 SDL_closest_depths[table][7] = SDL_VideoSurface->format->BitsPerPixel; | |
| 459 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
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460 int best; |
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461 |
| 0 | 462 format.BitsPerPixel = SDL_closest_depths[table][b]; |
| 463 sizes = SDL_ListModes(&format, flags); | |
| 464 if ( sizes == (SDL_Rect **)0 ) { | |
| 465 /* No sizes supported at this bit-depth */ | |
| 466 continue; | |
| 467 } | |
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468 best=0; |
| 0 | 469 for ( i=0; sizes[i]; ++i ) { |
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470 /* Mode with both dimensions bigger or equal than asked ? */ |
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471 if ((sizes[i]->w >= *w) && (sizes[i]->h >= *h)) { |
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472 /* Mode with any dimension smaller or equal than current best ? */ |
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473 if ((sizes[i]->w <= sizes[best]->w) || (sizes[i]->h <= sizes[best]->h)) { |
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[PATCH] SDL_GetVideoMode() does not find best mode, part 2
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474 /* Now choose the mode that has less pixels */ |
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475 if ((sizes[i]->w * sizes[i]->h) <= (sizes[best]->w * sizes[best]->h)) { |
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476 best=i; |
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477 supported = 1; |
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478 } |
| 0 | 479 } |
| 480 } | |
| 481 } | |
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482 if (supported) { |
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483 *w=sizes[best]->w; |
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484 *h=sizes[best]->h; |
| 0 | 485 *BitsPerPixel = SDL_closest_depths[table][b]; |
| 486 } | |
| 487 } | |
| 488 if ( ! supported ) { | |
| 489 SDL_SetError("No video mode large enough for %dx%d", *w, *h); | |
| 490 } | |
| 491 return(supported); | |
| 492 } | |
| 493 | |
| 494 /* This should probably go somewhere else -- like SDL_surface.c */ | |
| 495 static void SDL_ClearSurface(SDL_Surface *surface) | |
| 496 { | |
| 497 Uint32 black; | |
| 498 | |
| 499 black = SDL_MapRGB(surface->format, 0, 0, 0); | |
| 500 SDL_FillRect(surface, NULL, black); | |
| 501 if ((surface->flags&SDL_HWSURFACE) && (surface->flags&SDL_DOUBLEBUF)) { | |
| 502 SDL_Flip(surface); | |
| 503 SDL_FillRect(surface, NULL, black); | |
| 504 } | |
| 505 SDL_Flip(surface); | |
| 506 } | |
| 507 | |
| 508 /* | |
| 509 * Create a shadow surface suitable for fooling the app. :-) | |
| 510 */ | |
| 511 static void SDL_CreateShadowSurface(int depth) | |
| 512 { | |
| 513 Uint32 Rmask, Gmask, Bmask; | |
| 514 | |
| 515 /* Allocate the shadow surface */ | |
| 516 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 517 Rmask = (SDL_VideoSurface->format)->Rmask; | |
| 518 Gmask = (SDL_VideoSurface->format)->Gmask; | |
| 519 Bmask = (SDL_VideoSurface->format)->Bmask; | |
| 520 } else { | |
| 521 Rmask = Gmask = Bmask = 0; | |
| 522 } | |
| 523 SDL_ShadowSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
| 524 SDL_VideoSurface->w, SDL_VideoSurface->h, | |
| 525 depth, Rmask, Gmask, Bmask, 0); | |
| 526 if ( SDL_ShadowSurface == NULL ) { | |
| 527 return; | |
| 528 } | |
| 529 | |
| 530 /* 8-bit shadow surfaces report that they have exclusive palette */ | |
| 531 if ( SDL_ShadowSurface->format->palette ) { | |
| 532 SDL_ShadowSurface->flags |= SDL_HWPALETTE; | |
| 533 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
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534 SDL_memcpy(SDL_ShadowSurface->format->palette->colors, |
| 0 | 535 SDL_VideoSurface->format->palette->colors, |
| 536 SDL_VideoSurface->format->palette->ncolors* | |
| 537 sizeof(SDL_Color)); | |
| 538 } else { | |
| 539 SDL_DitherColors( | |
| 540 SDL_ShadowSurface->format->palette->colors, depth); | |
| 541 } | |
| 542 } | |
| 543 | |
| 544 /* If the video surface is resizable, the shadow should say so */ | |
| 545 if ( (SDL_VideoSurface->flags & SDL_RESIZABLE) == SDL_RESIZABLE ) { | |
| 546 SDL_ShadowSurface->flags |= SDL_RESIZABLE; | |
| 547 } | |
| 548 /* If the video surface has no frame, the shadow should say so */ | |
| 549 if ( (SDL_VideoSurface->flags & SDL_NOFRAME) == SDL_NOFRAME ) { | |
| 550 SDL_ShadowSurface->flags |= SDL_NOFRAME; | |
| 551 } | |
| 552 /* If the video surface is fullscreen, the shadow should say so */ | |
| 553 if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 554 SDL_ShadowSurface->flags |= SDL_FULLSCREEN; | |
| 555 } | |
| 556 /* If the video surface is flippable, the shadow should say so */ | |
| 557 if ( (SDL_VideoSurface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 558 SDL_ShadowSurface->flags |= SDL_DOUBLEBUF; | |
| 559 } | |
| 560 return; | |
| 561 } | |
| 562 | |
|
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563 #ifdef __QNXNTO__ |
|
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564 #include <sys/neutrino.h> |
|
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565 #endif /* __QNXNTO__ */ |
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566 |
| 0 | 567 /* |
| 568 * Set the requested video mode, allocating a shadow buffer if necessary. | |
| 569 */ | |
| 570 SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags) | |
| 571 { | |
| 572 SDL_VideoDevice *video, *this; | |
| 573 SDL_Surface *prev_mode, *mode; | |
| 574 int video_w; | |
| 575 int video_h; | |
| 576 int video_bpp; | |
| 577 int is_opengl; | |
| 578 SDL_GrabMode saved_grab; | |
| 579 | |
| 580 /* Start up the video driver, if necessary.. | |
| 581 WARNING: This is the only function protected this way! | |
| 582 */ | |
| 583 if ( ! current_video ) { | |
| 584 if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE) < 0 ) { | |
| 585 return(NULL); | |
| 586 } | |
| 587 } | |
| 588 this = video = current_video; | |
| 589 | |
| 590 /* Default to the current video bpp */ | |
| 591 if ( bpp == 0 ) { | |
| 592 flags |= SDL_ANYFORMAT; | |
| 593 bpp = SDL_VideoSurface->format->BitsPerPixel; | |
| 594 } | |
| 595 | |
| 596 /* Get a good video mode, the closest one possible */ | |
| 597 video_w = width; | |
| 598 video_h = height; | |
| 599 video_bpp = bpp; | |
| 600 if ( ! SDL_GetVideoMode(&video_w, &video_h, &video_bpp, flags) ) { | |
| 601 return(NULL); | |
| 602 } | |
| 603 | |
| 604 /* Check the requested flags */ | |
| 605 /* There's no palette in > 8 bits-per-pixel mode */ | |
| 606 if ( video_bpp > 8 ) { | |
| 607 flags &= ~SDL_HWPALETTE; | |
| 608 } | |
| 609 #if 0 | |
| 610 if ( (flags&SDL_FULLSCREEN) != SDL_FULLSCREEN ) { | |
| 611 /* There's no windowed double-buffering */ | |
| 612 flags &= ~SDL_DOUBLEBUF; | |
| 613 } | |
| 614 #endif | |
| 615 if ( (flags&SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 616 /* Use hardware surfaces when double-buffering */ | |
| 617 flags |= SDL_HWSURFACE; | |
| 618 } | |
| 619 | |
| 620 is_opengl = ( ( flags & SDL_OPENGL ) == SDL_OPENGL ); | |
| 621 if ( is_opengl ) { | |
| 622 /* These flags are for 2D video modes only */ | |
| 623 flags &= ~(SDL_HWSURFACE|SDL_DOUBLEBUF); | |
| 624 } | |
| 625 | |
|
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626 /* Reset the keyboard here so event callbacks can run */ |
|
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627 SDL_ResetKeyboard(); |
|
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628 SDL_ResetMouse(); |
| 1296 | 629 SDL_cursorstate &= ~CURSOR_USINGSW; |
|
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630 |
| 0 | 631 /* Clean up any previous video mode */ |
| 632 if ( SDL_PublicSurface != NULL ) { | |
| 633 SDL_PublicSurface = NULL; | |
| 634 } | |
| 635 if ( SDL_ShadowSurface != NULL ) { | |
| 636 SDL_Surface *ready_to_go; | |
| 637 ready_to_go = SDL_ShadowSurface; | |
| 638 SDL_ShadowSurface = NULL; | |
| 639 SDL_FreeSurface(ready_to_go); | |
| 640 } | |
| 641 if ( video->physpal ) { | |
|
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642 SDL_free(video->physpal->colors); |
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643 SDL_free(video->physpal); |
| 0 | 644 video->physpal = NULL; |
| 645 } | |
| 646 if( video->gammacols) { | |
|
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647 SDL_free(video->gammacols); |
| 0 | 648 video->gammacols = NULL; |
| 649 } | |
| 650 | |
| 651 /* Save the previous grab state and turn off grab for mode switch */ | |
| 652 saved_grab = SDL_WM_GrabInputOff(); | |
| 653 | |
| 654 /* Try to set the video mode, along with offset and clipping */ | |
| 655 prev_mode = SDL_VideoSurface; | |
| 656 SDL_LockCursor(); | |
| 657 SDL_VideoSurface = NULL; /* In case it's freed by driver */ | |
| 658 mode = video->SetVideoMode(this, prev_mode,video_w,video_h,video_bpp,flags); | |
| 659 if ( mode ) { /* Prevent resize events from mode change */ | |
| 1190 | 660 /* But not on OS/2 */ |
| 661 #ifndef __OS2__ | |
| 0 | 662 SDL_PrivateResize(mode->w, mode->h); |
| 1190 | 663 #endif |
|
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664 |
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665 /* Sam - If we asked for OpenGL mode, and didn't get it, fail */ |
|
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666 if ( is_opengl && !(mode->flags & SDL_OPENGL) ) { |
|
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667 mode = NULL; |
|
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50f5a29c6a17
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668 SDL_SetError("OpenGL not available"); |
|
229
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669 } |
|
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66c02f83f5bf
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|
670 } |
| 0 | 671 /* |
| 672 * rcg11292000 | |
| 673 * If you try to set an SDL_OPENGL surface, and fail to find a | |
| 674 * matching visual, then the next call to SDL_SetVideoMode() | |
| 675 * will segfault, since we no longer point to a dummy surface, | |
| 676 * but rather NULL. | |
| 677 * Sam 11/29/00 | |
| 678 * WARNING, we need to make sure that the previous mode hasn't | |
| 679 * already been freed by the video driver. What do we do in | |
| 680 * that case? Should we call SDL_VideoInit() again? | |
| 681 */ | |
| 682 SDL_VideoSurface = (mode != NULL) ? mode : prev_mode; | |
| 683 | |
| 684 if ( (mode != NULL) && (!is_opengl) ) { | |
| 685 /* Sanity check */ | |
| 686 if ( (mode->w < width) || (mode->h < height) ) { | |
| 687 SDL_SetError("Video mode smaller than requested"); | |
| 688 return(NULL); | |
| 689 } | |
| 690 | |
| 691 /* If we have a palettized surface, create a default palette */ | |
| 692 if ( mode->format->palette ) { | |
|
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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 | |
|
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742 #if SDL_VIDEO_OPENGL |
|
650
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743 /* Load GL symbols (before MakeCurrent, where we need glGetString). */ |
|
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744 if ( flags & (SDL_OPENGL | SDL_OPENGLBLIT) ) { |
|
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745 |
|
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746 #if defined(__QNXNTO__) && (_NTO_VERSION < 630) |
|
916
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747 #define __SDL_NOGETPROCADDR__ |
|
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diff
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748 #elif defined(__MINT__) |
|
475166d13b44
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749 #define __SDL_NOGETPROCADDR__ |
|
916
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750 #endif |
|
910
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|
751 #ifdef __SDL_NOGETPROCADDR__ |
|
4ab6d1fd028f
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752 #define SDL_PROC(ret,func,params) video->func=func; |
|
663
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Date: Sat, 2 Aug 2003 16:22:51 +0300
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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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756 video->func = SDL_GL_GetProcAddress(#func); \ |
|
4ab6d1fd028f
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|
757 if ( ! video->func ) { \ |
|
1141
fe1fa56dcbc6
If couldn't load a needed GL symbol in SDL_SetVideoMode(), report it more
Ryan C. Gordon <icculus@icculus.org>
parents:
1140
diff
changeset
|
758 SDL_SetError("Couldn't load GL function %s: %s\n", #func, SDL_GetError()); \ |
|
910
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759 return(NULL); \ |
|
4ab6d1fd028f
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|
760 } \ |
|
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|
761 } while ( 0 ); |
|
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762 |
|
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763 #endif /* __SDL_NOGETPROCADDR__ */ |
|
4ab6d1fd028f
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|
764 |
|
650
fe445b59d307
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Ryan C. Gordon <icculus@icculus.org>
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630
diff
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|
765 #include "SDL_glfuncs.h" |
|
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diff
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|
766 #undef SDL_PROC |
|
fe445b59d307
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Ryan C. Gordon <icculus@icculus.org>
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767 } |
|
1361
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Sam Lantinga <slouken@libsdl.org>
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768 #endif /* SDL_VIDEO_OPENGL */ |
|
650
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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 */ | |
|
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781 #if SDL_VIDEO_OPENGL |
| 0 | 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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Sam Lantinga <slouken@libsdl.org>
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|
790 (SDL_strstr((const char *)video->glGetString(GL_EXTENSIONS), "GL_EXT_packed_pixels") || |
|
1341
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Configure dynamically generates SDL_config.h
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791 (SDL_atof((const char *)video->glGetString(GL_VERSION)) >= 1.2f)) |
|
282
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Fixed SDL_OPENGLBLIT with OpenGL API newer than 1.2
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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 */ |
|
1336
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|
836 SDL_memset( SDL_VideoSurface->pixels, 255, SDL_VideoSurface->h * SDL_VideoSurface->pitch ); |
| 0 | 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 | |
|
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856 SDL_SetError("Somebody forgot to #define SDL_VIDEO_OPENGL"); |
| 0 | 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) && | |
|
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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 */ | |
|
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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 */ | |
|
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998 rect.x = (Sint16)x; |
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999 rect.y = (Sint16)y; |
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1000 rect.w = (Uint16)w; |
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1001 rect.h = (Uint16)h; |
| 0 | 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 | |
|
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1011 if ( (screen->flags & (SDL_OPENGL | SDL_OPENGLBLIT)) == SDL_OPENGL ) { |
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1012 SDL_SetError("OpenGL active, use SDL_GL_SwapBuffers()"); |
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1013 return; |
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1014 } |
| 0 | 1015 if ( screen == SDL_ShadowSurface ) { |
| 1016 /* Blit the shadow surface using saved mapping */ | |
|
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1017 SDL_Palette *pal = screen->format->palette; |
| 0 | 1018 SDL_Color *saved_colors = NULL; |
|
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1019 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1020 /* simulated 8bpp, use correct physical palette */ |
| 1021 saved_colors = pal->colors; | |
| 1022 if ( video->gammacols ) { | |
| 1023 /* gamma-corrected palette */ | |
| 1024 pal->colors = video->gammacols; | |
| 1025 } else if ( video->physpal ) { | |
| 1026 /* physical palette different from logical */ | |
| 1027 pal->colors = video->physpal->colors; | |
| 1028 } | |
| 1029 } | |
| 1030 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { | |
| 1031 SDL_LockCursor(); | |
| 1032 SDL_DrawCursor(SDL_ShadowSurface); | |
| 1033 for ( i=0; i<numrects; ++i ) { | |
| 1034 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1035 SDL_VideoSurface, &rects[i]); | |
| 1036 } | |
| 1037 SDL_EraseCursor(SDL_ShadowSurface); | |
| 1038 SDL_UnlockCursor(); | |
| 1039 } else { | |
| 1040 for ( i=0; i<numrects; ++i ) { | |
| 1041 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1042 SDL_VideoSurface, &rects[i]); | |
| 1043 } | |
| 1044 } | |
|
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1045 if ( saved_colors ) { |
| 0 | 1046 pal->colors = saved_colors; |
|
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1047 } |
| 0 | 1048 |
| 1049 /* Fall through to video surface update */ | |
| 1050 screen = SDL_VideoSurface; | |
| 1051 } | |
| 1052 if ( screen == SDL_VideoSurface ) { | |
| 1053 /* Update the video surface */ | |
| 1054 if ( screen->offset ) { | |
| 1055 for ( i=0; i<numrects; ++i ) { | |
| 1056 rects[i].x += video->offset_x; | |
| 1057 rects[i].y += video->offset_y; | |
| 1058 } | |
| 1059 video->UpdateRects(this, numrects, rects); | |
| 1060 for ( i=0; i<numrects; ++i ) { | |
| 1061 rects[i].x -= video->offset_x; | |
| 1062 rects[i].y -= video->offset_y; | |
| 1063 } | |
| 1064 } else { | |
| 1065 video->UpdateRects(this, numrects, rects); | |
| 1066 } | |
| 1067 } | |
| 1068 } | |
| 1069 | |
| 1070 /* | |
| 1071 * Performs hardware double buffering, if possible, or a full update if not. | |
| 1072 */ | |
| 1073 int SDL_Flip(SDL_Surface *screen) | |
| 1074 { | |
| 1075 SDL_VideoDevice *video = current_video; | |
| 1076 /* Copy the shadow surface to the video surface */ | |
| 1077 if ( screen == SDL_ShadowSurface ) { | |
| 1078 SDL_Rect rect; | |
|
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1079 SDL_Palette *pal = screen->format->palette; |
| 0 | 1080 SDL_Color *saved_colors = NULL; |
|
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1081 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1082 /* simulated 8bpp, use correct physical palette */ |
| 1083 saved_colors = pal->colors; | |
| 1084 if ( video->gammacols ) { | |
| 1085 /* gamma-corrected palette */ | |
| 1086 pal->colors = video->gammacols; | |
| 1087 } else if ( video->physpal ) { | |
| 1088 /* physical palette different from logical */ | |
| 1089 pal->colors = video->physpal->colors; | |
| 1090 } | |
| 1091 } | |
| 1092 | |
| 1093 rect.x = 0; | |
| 1094 rect.y = 0; | |
| 1095 rect.w = screen->w; | |
| 1096 rect.h = screen->h; | |
|
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1097 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { |
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1098 SDL_LockCursor(); |
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1099 SDL_DrawCursor(SDL_ShadowSurface); |
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1100 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1101 SDL_VideoSurface, &rect); |
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1102 SDL_EraseCursor(SDL_ShadowSurface); |
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1103 SDL_UnlockCursor(); |
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1104 } else { |
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1105 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1106 SDL_VideoSurface, &rect); |
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1107 } |
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1108 if ( saved_colors ) { |
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1109 pal->colors = saved_colors; |
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1110 } |
| 0 | 1111 |
|
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1112 /* Fall through to video surface update */ |
| 0 | 1113 screen = SDL_VideoSurface; |
| 1114 } | |
| 1115 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 1116 SDL_VideoDevice *this = current_video; | |
| 1117 return(video->FlipHWSurface(this, SDL_VideoSurface)); | |
| 1118 } else { | |
| 1119 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1120 } | |
| 1121 return(0); | |
| 1122 } | |
| 1123 | |
| 1124 static void SetPalette_logical(SDL_Surface *screen, SDL_Color *colors, | |
| 1125 int firstcolor, int ncolors) | |
| 1126 { | |
|
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1127 SDL_Palette *pal = screen->format->palette; |
| 0 | 1128 SDL_Palette *vidpal; |
| 1129 | |
| 1130 if ( colors != (pal->colors + firstcolor) ) { | |
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1131 SDL_memcpy(pal->colors + firstcolor, colors, |
| 0 | 1132 ncolors * sizeof(*colors)); |
| 1133 } | |
| 1134 | |
| 1135 vidpal = SDL_VideoSurface->format->palette; | |
| 1136 if ( (screen == SDL_ShadowSurface) && vidpal ) { | |
|
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1137 /* |
| 0 | 1138 * This is a shadow surface, and the physical |
| 1139 * framebuffer is also indexed. Propagate the | |
| 1140 * changes to its logical palette so that | |
| 1141 * updates are always identity blits | |
| 1142 */ | |
|
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1143 SDL_memcpy(vidpal->colors + firstcolor, colors, |
| 0 | 1144 ncolors * sizeof(*colors)); |
| 1145 } | |
| 1146 SDL_FormatChanged(screen); | |
| 1147 } | |
| 1148 | |
| 1149 static int SetPalette_physical(SDL_Surface *screen, | |
| 1150 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1151 { | |
| 1152 SDL_VideoDevice *video = current_video; | |
| 1153 int gotall = 1; | |
| 1154 | |
| 1155 if ( video->physpal ) { | |
| 1156 /* We need to copy the new colors, since we haven't | |
| 1157 * already done the copy in the logical set above. | |
| 1158 */ | |
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1159 SDL_memcpy(video->physpal->colors + firstcolor, |
| 0 | 1160 colors, ncolors * sizeof(*colors)); |
| 1161 } | |
| 1162 if ( screen == SDL_ShadowSurface ) { | |
| 1163 if ( SDL_VideoSurface->flags & SDL_HWPALETTE ) { | |
| 1164 /* | |
| 1165 * The real screen is also indexed - set its physical | |
| 1166 * palette. The physical palette does not include the | |
| 1167 * gamma modification, we apply it directly instead, | |
| 1168 * but this only happens if we have hardware palette. | |
| 1169 */ | |
| 1170 screen = SDL_VideoSurface; | |
| 1171 } else { | |
| 1172 /* | |
| 1173 * The video surface is not indexed - invalidate any | |
| 1174 * active shadow-to-video blit mappings. | |
| 1175 */ | |
| 1176 if ( screen->map->dst == SDL_VideoSurface ) { | |
| 1177 SDL_InvalidateMap(screen->map); | |
| 1178 } | |
| 1179 if ( video->gamma ) { | |
| 1180 if( ! video->gammacols ) { | |
| 1181 SDL_Palette *pp = video->physpal; | |
| 1182 if(!pp) | |
| 1183 pp = screen->format->palette; | |
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1184 video->gammacols = SDL_malloc(pp->ncolors |
| 0 | 1185 * sizeof(SDL_Color)); |
| 1186 SDL_ApplyGamma(video->gamma, | |
| 1187 pp->colors, | |
| 1188 video->gammacols, | |
| 1189 pp->ncolors); | |
| 1190 } else { | |
| 1191 SDL_ApplyGamma(video->gamma, colors, | |
| 1192 video->gammacols | |
| 1193 + firstcolor, | |
| 1194 ncolors); | |
| 1195 } | |
| 1196 } | |
| 1197 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1198 } | |
| 1199 } | |
| 1200 | |
| 1201 if ( screen == SDL_VideoSurface ) { | |
| 1202 SDL_Color gcolors[256]; | |
| 1203 | |
|
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|
1204 if ( video->gamma ) { |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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parents:
656
diff
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|
1205 SDL_ApplyGamma(video->gamma, colors, gcolors, ncolors); |
| 0 | 1206 colors = gcolors; |
| 1207 } | |
| 1208 gotall = video->SetColors(video, firstcolor, ncolors, colors); | |
| 1209 if ( ! gotall ) { | |
| 1210 /* The video flags shouldn't have SDL_HWPALETTE, and | |
| 1211 the video driver is responsible for copying back the | |
| 1212 correct colors into the video surface palette. | |
| 1213 */ | |
| 1214 ; | |
| 1215 } | |
| 1216 SDL_CursorPaletteChanged(); | |
| 1217 } | |
| 1218 return gotall; | |
| 1219 } | |
| 1220 | |
| 1221 /* | |
| 1222 * Set the physical and/or logical colormap of a surface: | |
| 1223 * Only the screen has a physical colormap. It determines what is actually | |
| 1224 * sent to the display. | |
| 1225 * The logical colormap is used to map blits to/from the surface. | |
| 1226 * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL | |
| 1227 * | |
| 1228 * Return nonzero if all colours were set as requested, or 0 otherwise. | |
| 1229 */ | |
| 1230 int SDL_SetPalette(SDL_Surface *screen, int which, | |
| 1231 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1232 { | |
|
662
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diff
changeset
|
1233 SDL_Palette *pal; |
| 0 | 1234 int gotall; |
| 1235 int palsize; | |
| 1236 | |
| 34 | 1237 if ( ! current_video ) { |
| 1238 return 0; | |
| 1239 } | |
| 0 | 1240 if ( screen != SDL_PublicSurface ) { |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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diff
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|
1241 /* only screens have physical palettes */ |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1242 which &= ~SDL_PHYSPAL; |
| 0 | 1243 } else if( (screen->flags & SDL_HWPALETTE) != SDL_HWPALETTE ) { |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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parents:
656
diff
changeset
|
1244 /* hardware palettes required for split colormaps */ |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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parents:
656
diff
changeset
|
1245 which |= SDL_PHYSPAL | SDL_LOGPAL; |
| 0 | 1246 } |
| 1247 | |
| 1248 /* Verify the parameters */ | |
| 1249 pal = screen->format->palette; | |
| 1250 if( !pal ) { | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
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|
1251 return 0; /* not a palettized surface */ |
| 0 | 1252 } |
| 1253 gotall = 1; | |
| 1254 palsize = 1 << screen->format->BitsPerPixel; | |
| 1255 if ( ncolors > (palsize - firstcolor) ) { | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1256 ncolors = (palsize - firstcolor); |
| 0 | 1257 gotall = 0; |
| 1258 } | |
| 1259 | |
| 1260 if ( which & SDL_LOGPAL ) { | |
| 1261 /* | |
| 1262 * Logical palette change: The actual screen isn't affected, | |
| 1263 * but the internal colormap is altered so that the | |
| 1264 * interpretation of the pixel values (for blits etc) is | |
| 1265 * changed. | |
| 1266 */ | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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656
diff
changeset
|
1267 SetPalette_logical(screen, colors, firstcolor, ncolors); |
| 0 | 1268 } |
| 1269 if ( which & SDL_PHYSPAL ) { | |
| 1270 SDL_VideoDevice *video = current_video; | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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656
diff
changeset
|
1271 /* |
| 0 | 1272 * Physical palette change: This doesn't affect the |
| 1273 * program's idea of what the screen looks like, but changes | |
| 1274 * its actual appearance. | |
| 1275 */ | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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parents:
656
diff
changeset
|
1276 if(!video) |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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656
diff
changeset
|
1277 return gotall; /* video not yet initialized */ |
| 0 | 1278 if(!video->physpal && !(which & SDL_LOGPAL) ) { |
| 1279 /* Lazy physical palette allocation */ | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1280 int size; |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
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1330
diff
changeset
|
1281 SDL_Palette *pp = SDL_malloc(sizeof(*pp)); |
|
944
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1282 if ( !pp ) { |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1283 return 0; |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1284 } |
| 0 | 1285 current_video->physpal = pp; |
| 1286 pp->ncolors = pal->ncolors; | |
| 1287 size = pp->ncolors * sizeof(SDL_Color); | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1288 pp->colors = SDL_malloc(size); |
|
944
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1289 if ( !pp->colors ) { |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1290 return 0; |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1291 } |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1292 SDL_memcpy(pp->colors, pal->colors, size); |
| 0 | 1293 } |
| 1294 if ( ! SetPalette_physical(screen, | |
| 1295 colors, firstcolor, ncolors) ) { | |
| 1296 gotall = 0; | |
| 1297 } | |
| 1298 } | |
| 1299 return gotall; | |
| 1300 } | |
| 1301 | |
| 1302 int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor, | |
| 1303 int ncolors) | |
| 1304 { | |
|
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1305 return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, |
| 0 | 1306 colors, firstcolor, ncolors); |
| 1307 } | |
| 1308 | |
| 1309 /* | |
| 1310 * Clean up the video subsystem | |
| 1311 */ | |
| 1312 void SDL_VideoQuit (void) | |
| 1313 { | |
| 1314 SDL_Surface *ready_to_go; | |
| 1315 | |
| 1316 if ( current_video ) { | |
| 1317 SDL_VideoDevice *video = current_video; | |
| 1318 SDL_VideoDevice *this = current_video; | |
| 1319 | |
| 1320 /* Halt event processing before doing anything else */ | |
| 1321 SDL_StopEventLoop(); | |
| 1322 | |
| 1323 /* Clean up allocated window manager items */ | |
| 1324 if ( SDL_PublicSurface ) { | |
| 1325 SDL_PublicSurface = NULL; | |
| 1326 } | |
| 1327 SDL_CursorQuit(); | |
| 1328 | |
| 1329 /* Just in case... */ | |
| 1330 SDL_WM_GrabInputOff(); | |
| 1331 | |
| 1332 /* Clean up the system video */ | |
| 1333 video->VideoQuit(this); | |
| 1334 | |
| 1335 /* Free any lingering surfaces */ | |
| 1336 ready_to_go = SDL_ShadowSurface; | |
| 1337 SDL_ShadowSurface = NULL; | |
| 1338 SDL_FreeSurface(ready_to_go); | |
| 1339 if ( SDL_VideoSurface != NULL ) { | |
| 1340 ready_to_go = SDL_VideoSurface; | |
| 1341 SDL_VideoSurface = NULL; | |
| 1342 SDL_FreeSurface(ready_to_go); | |
| 1343 } | |
| 1344 SDL_PublicSurface = NULL; | |
| 1345 | |
| 1346 /* Clean up miscellaneous memory */ | |
| 1347 if ( video->physpal ) { | |
|
1336
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Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
1348 SDL_free(video->physpal->colors); |
|
3692456e7b0f
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Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
1349 SDL_free(video->physpal); |
| 0 | 1350 video->physpal = NULL; |
| 1351 } | |
| 1352 if ( video->gammacols ) { | |
|
1336
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Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1353 SDL_free(video->gammacols); |
| 0 | 1354 video->gammacols = NULL; |
| 1355 } | |
| 1356 if ( video->gamma ) { | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1357 SDL_free(video->gamma); |
| 0 | 1358 video->gamma = NULL; |
| 1359 } | |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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diff
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|
1360 if ( video->wm_title != NULL ) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1361 SDL_free(video->wm_title); |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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diff
changeset
|
1362 video->wm_title = NULL; |
| 0 | 1363 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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diff
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|
1364 if ( video->wm_icon != NULL ) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
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|
1365 SDL_free(video->wm_icon); |
|
58
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* Removed fullscreen menu option from the "Window" menu
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47
diff
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|
1366 video->wm_icon = NULL; |
| 0 | 1367 } |
| 1368 | |
| 1369 /* Finish cleaning up video subsystem */ | |
| 1370 video->free(this); | |
| 1371 current_video = NULL; | |
| 1372 } | |
| 1373 return; | |
| 1374 } | |
| 1375 | |
| 1376 /* Load the GL driver library */ | |
| 1377 int SDL_GL_LoadLibrary(const char *path) | |
| 1378 { | |
| 1379 SDL_VideoDevice *video = current_video; | |
| 1380 SDL_VideoDevice *this = current_video; | |
| 1381 int retval; | |
| 1382 | |
| 1383 retval = -1; | |
|
423
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More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1384 if ( video == NULL ) { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
Ryan C. Gordon <icculus@icculus.org>
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|
1385 SDL_SetError("Video subsystem has not been initialized"); |
| 0 | 1386 } else { |
|
423
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More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1387 if ( video->GL_LoadLibrary ) { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1388 retval = video->GL_LoadLibrary(this, path); |
|
d1565c52ded5
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|
1389 } else { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1390 SDL_SetError("No dynamic GL support in video driver"); |
|
d1565c52ded5
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|
1391 } |
| 0 | 1392 } |
| 1393 return(retval); | |
| 1394 } | |
| 1395 | |
| 1396 void *SDL_GL_GetProcAddress(const char* proc) | |
| 1397 { | |
| 1398 SDL_VideoDevice *video = current_video; | |
| 1399 SDL_VideoDevice *this = current_video; | |
| 1400 void *func; | |
| 1401 | |
| 1402 func = NULL; | |
| 1403 if ( video->GL_GetProcAddress ) { | |
| 1404 if ( video->gl_config.driver_loaded ) { | |
| 1405 func = video->GL_GetProcAddress(this, proc); | |
| 1406 } else { | |
| 1407 SDL_SetError("No GL driver has been loaded"); | |
| 1408 } | |
| 1409 } else { | |
| 1410 SDL_SetError("No dynamic GL support in video driver"); | |
| 1411 } | |
| 1412 return func; | |
| 1413 } | |
| 1414 | |
| 1415 /* Set the specified GL attribute for setting up a GL video mode */ | |
| 1416 int SDL_GL_SetAttribute( SDL_GLattr attr, int value ) | |
| 1417 { | |
| 1418 int retval; | |
| 1419 SDL_VideoDevice *video = current_video; | |
| 1420 | |
| 1421 retval = 0; | |
| 1422 switch (attr) { | |
| 1423 case SDL_GL_RED_SIZE: | |
| 1424 video->gl_config.red_size = value; | |
| 1425 break; | |
| 1426 case SDL_GL_GREEN_SIZE: | |
| 1427 video->gl_config.green_size = value; | |
| 1428 break; | |
| 1429 case SDL_GL_BLUE_SIZE: | |
| 1430 video->gl_config.blue_size = value; | |
| 1431 break; | |
| 1432 case SDL_GL_ALPHA_SIZE: | |
| 1433 video->gl_config.alpha_size = value; | |
| 1434 break; | |
| 1435 case SDL_GL_DOUBLEBUFFER: | |
| 1436 video->gl_config.double_buffer = value; | |
| 1437 break; | |
|
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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656
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changeset
|
1438 case SDL_GL_BUFFER_SIZE: |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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656
diff
changeset
|
1439 video->gl_config.buffer_size = value; |
| 0 | 1440 break; |
| 1441 case SDL_GL_DEPTH_SIZE: | |
| 1442 video->gl_config.depth_size = value; | |
| 1443 break; | |
| 1444 case SDL_GL_STENCIL_SIZE: | |
| 1445 video->gl_config.stencil_size = value; | |
| 1446 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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433
diff
changeset
|
1447 case SDL_GL_ACCUM_RED_SIZE: |
| 0 | 1448 video->gl_config.accum_red_size = value; |
| 1449 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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433
diff
changeset
|
1450 case SDL_GL_ACCUM_GREEN_SIZE: |
| 0 | 1451 video->gl_config.accum_green_size = value; |
| 1452 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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433
diff
changeset
|
1453 case SDL_GL_ACCUM_BLUE_SIZE: |
| 0 | 1454 video->gl_config.accum_blue_size = value; |
| 1455 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1456 case SDL_GL_ACCUM_ALPHA_SIZE: |
| 0 | 1457 video->gl_config.accum_alpha_size = value; |
| 1458 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1459 case SDL_GL_STEREO: |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1460 video->gl_config.stereo = value; |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
1461 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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changeset
|
1462 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
|
1463 video->gl_config.multisamplebuffers = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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diff
changeset
|
1464 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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diff
changeset
|
1465 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
|
1466 video->gl_config.multisamplesamples = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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diff
changeset
|
1467 break; |
| 0 | 1468 default: |
| 1469 SDL_SetError("Unknown OpenGL attribute"); | |
| 1470 retval = -1; | |
| 1471 break; | |
| 1472 } | |
| 1473 return(retval); | |
| 1474 } | |
| 1475 | |
| 1476 /* Retrieve an attribute value from the windowing system. */ | |
| 1477 int SDL_GL_GetAttribute(SDL_GLattr attr, int* value) | |
| 1478 { | |
| 1479 int retval = -1; | |
| 1480 SDL_VideoDevice* video = current_video; | |
| 1481 SDL_VideoDevice* this = current_video; | |
| 1482 | |
| 1483 if ( video->GL_GetAttribute ) { | |
| 1484 retval = this->GL_GetAttribute(this, attr, value); | |
|
11
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1485 } else { |
|
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1486 *value = 0; |
|
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
1487 SDL_SetError("GL_GetAttribute not supported"); |
| 0 | 1488 } |
| 1489 return retval; | |
| 1490 } | |
| 1491 | |
| 1492 /* Perform a GL buffer swap on the current GL context */ | |
| 1493 void SDL_GL_SwapBuffers(void) | |
| 1494 { | |
| 1495 SDL_VideoDevice *video = current_video; | |
| 1496 SDL_VideoDevice *this = current_video; | |
| 1497 | |
| 1498 if ( video->screen->flags & SDL_OPENGL ) { | |
|
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Added QNX cleanups by Mike Gorchak (thanks!)
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changeset
|
1499 video->GL_SwapBuffers(this); |
|
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Added QNX cleanups by Mike Gorchak (thanks!)
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|
1500 } else { |
|
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Added QNX cleanups by Mike Gorchak (thanks!)
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|
1501 SDL_SetError("OpenGL video mode has not been set"); |
| 0 | 1502 } |
| 1503 } | |
| 1504 | |
| 1505 /* Update rects with locking */ | |
| 1506 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect *rects) | |
| 1507 { | |
| 1508 SDL_GL_Lock(); | |
| 1509 SDL_GL_UpdateRects(numrects, rects); | |
| 1510 SDL_GL_Unlock(); | |
| 1511 } | |
| 1512 | |
| 1513 /* Update rects without state setting and changing (the caller is responsible for it) */ | |
| 1514 void SDL_GL_UpdateRects(int numrects, SDL_Rect *rects) | |
| 1515 { | |
|
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1516 #if SDL_VIDEO_OPENGL |
| 0 | 1517 SDL_VideoDevice *this = current_video; |
| 1518 SDL_Rect update, tmp; | |
| 1519 int x, y, i; | |
| 1520 | |
| 1521 for ( i = 0; i < numrects; i++ ) | |
| 1522 { | |
| 1523 tmp.y = rects[i].y; | |
| 1524 tmp.h = rects[i].h; | |
| 1525 for ( y = 0; y <= rects[i].h / 256; y++ ) | |
| 1526 { | |
| 1527 tmp.x = rects[i].x; | |
| 1528 tmp.w = rects[i].w; | |
| 1529 for ( x = 0; x <= rects[i].w / 256; x++ ) | |
| 1530 { | |
| 1531 update.x = tmp.x; | |
| 1532 update.y = tmp.y; | |
| 1533 update.w = tmp.w; | |
| 1534 update.h = tmp.h; | |
| 1535 | |
| 1536 if ( update.w > 256 ) | |
| 1537 update.w = 256; | |
| 1538 | |
| 1539 if ( update.h > 256 ) | |
| 1540 update.h = 256; | |
| 1541 | |
| 1542 this->glFlush(); | |
| 1543 this->glTexSubImage2D( | |
| 1544 GL_TEXTURE_2D, | |
| 1545 0, | |
| 1546 0, | |
| 1547 0, | |
| 1548 update.w, | |
| 1549 update.h, | |
| 1550 this->is_32bit? GL_RGBA : GL_RGB, | |
| 1551 #ifdef GL_VERSION_1_2 | |
| 1552 this->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 1553 #else | |
| 1554 GL_UNSIGNED_BYTE, | |
| 1555 #endif | |
| 1556 (Uint8 *)this->screen->pixels + | |
| 1557 this->screen->format->BytesPerPixel * update.x + | |
| 1558 update.y * this->screen->pitch ); | |
| 1559 | |
| 1560 this->glFlush(); | |
| 1561 /* | |
| 1562 * Note the parens around the function name: | |
| 1563 * This is because some OpenGL implementations define glTexCoord etc | |
| 1564 * as macros, and we don't want them expanded here. | |
| 1565 */ | |
| 1566 this->glBegin(GL_TRIANGLE_STRIP); | |
| 1567 (this->glTexCoord2f)( 0.0, 0.0 ); | |
| 1568 (this->glVertex2i)( update.x, update.y ); | |
| 1569 (this->glTexCoord2f)( (float)(update.w / 256.0), 0.0 ); | |
| 1570 (this->glVertex2i)( update.x + update.w, update.y ); | |
| 1571 (this->glTexCoord2f)( 0.0, (float)(update.h / 256.0) ); | |
| 1572 (this->glVertex2i)( update.x, update.y + update.h ); | |
| 1573 (this->glTexCoord2f)( (float)(update.w / 256.0), (float)(update.h / 256.0) ); | |
| 1574 (this->glVertex2i)( update.x + update.w , update.y + update.h ); | |
| 1575 this->glEnd(); | |
| 1576 | |
| 1577 tmp.x += 256; | |
| 1578 tmp.w -= 256; | |
| 1579 } | |
| 1580 tmp.y += 256; | |
| 1581 tmp.h -= 256; | |
| 1582 } | |
| 1583 } | |
| 1584 #endif | |
| 1585 } | |
| 1586 | |
| 1587 /* Lock == save current state */ | |
| 1588 void SDL_GL_Lock() | |
| 1589 { | |
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1590 #if SDL_VIDEO_OPENGL |
| 0 | 1591 lock_count--; |
| 1592 if (lock_count==-1) | |
| 1593 { | |
| 1594 SDL_VideoDevice *this = current_video; | |
| 1595 | |
| 1596 this->glPushAttrib( GL_ALL_ATTRIB_BITS ); /* TODO: narrow range of what is saved */ | |
|
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1597 #ifdef GL_CLIENT_PIXEL_STORE_BIT |
| 0 | 1598 this->glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT ); |
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1599 #endif |
| 0 | 1600 |
| 1601 this->glEnable(GL_TEXTURE_2D); | |
| 1602 this->glEnable(GL_BLEND); | |
| 1603 this->glDisable(GL_FOG); | |
| 1604 this->glDisable(GL_ALPHA_TEST); | |
| 1605 this->glDisable(GL_DEPTH_TEST); | |
| 1606 this->glDisable(GL_SCISSOR_TEST); | |
| 1607 this->glDisable(GL_STENCIL_TEST); | |
| 1608 this->glDisable(GL_CULL_FACE); | |
| 1609 | |
| 1610 this->glBindTexture( GL_TEXTURE_2D, this->texture ); | |
| 1611 this->glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); | |
| 1612 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); | |
| 1613 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); | |
| 1614 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); | |
| 1615 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT ); | |
| 1616 | |
| 1617 this->glPixelStorei( GL_UNPACK_ROW_LENGTH, this->screen->pitch / this->screen->format->BytesPerPixel ); | |
| 1618 this->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
| 1619 (this->glColor4f)(1.0, 1.0, 1.0, 1.0); /* Solaris workaround */ | |
| 1620 | |
| 1621 this->glViewport(0, 0, this->screen->w, this->screen->h); | |
| 1622 this->glMatrixMode(GL_PROJECTION); | |
| 1623 this->glPushMatrix(); | |
| 1624 this->glLoadIdentity(); | |
| 1625 | |
| 1626 this->glOrtho(0.0, (GLdouble) this->screen->w, (GLdouble) this->screen->h, 0.0, 0.0, 1.0); | |
| 1627 | |
| 1628 this->glMatrixMode(GL_MODELVIEW); | |
| 1629 this->glPushMatrix(); | |
| 1630 this->glLoadIdentity(); | |
| 1631 } | |
| 1632 #endif | |
| 1633 } | |
| 1634 | |
| 1635 /* Unlock == restore saved state */ | |
| 1636 void SDL_GL_Unlock() | |
| 1637 { | |
|
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1638 #if SDL_VIDEO_OPENGL |
| 0 | 1639 lock_count++; |
| 1640 if (lock_count==0) | |
| 1641 { | |
| 1642 SDL_VideoDevice *this = current_video; | |
| 1643 | |
| 1644 this->glPopMatrix(); | |
| 1645 this->glMatrixMode(GL_PROJECTION); | |
| 1646 this->glPopMatrix(); | |
| 1647 | |
| 1648 this->glPopClientAttrib(); | |
| 1649 this->glPopAttrib(); | |
| 1650 } | |
| 1651 #endif | |
| 1652 } | |
| 1653 | |
| 1654 /* | |
| 1655 * Sets/Gets the title and icon text of the display window, if any. | |
| 1656 */ | |
| 1657 void SDL_WM_SetCaption (const char *title, const char *icon) | |
| 1658 { | |
| 1659 SDL_VideoDevice *video = current_video; | |
| 1660 SDL_VideoDevice *this = current_video; | |
| 1661 | |
|
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1662 if ( video ) { |
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1663 if ( title ) { |
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1664 if ( video->wm_title ) { |
|
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1665 SDL_free(video->wm_title); |
|
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1666 } |
|
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1667 video->wm_title = SDL_strdup(title); |
| 0 | 1668 } |
|
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1669 if ( icon ) { |
|
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1670 if ( video->wm_icon ) { |
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1671 SDL_free(video->wm_icon); |
|
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1672 } |
|
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1673 video->wm_icon = SDL_strdup(icon); |
| 0 | 1674 } |
|
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1675 if ( (title || icon) && (video->SetCaption != NULL) ) { |
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1676 video->SetCaption(this, video->wm_title,video->wm_icon); |
| 0 | 1677 } |
| 1678 } | |
| 1679 } | |
| 1680 void SDL_WM_GetCaption (char **title, char **icon) | |
| 1681 { | |
|
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1682 SDL_VideoDevice *video = current_video; |
|
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1683 |
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1684 if ( video ) { |
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1685 if ( title ) { |
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1686 *title = video->wm_title; |
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1687 } |
|
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1688 if ( icon ) { |
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1689 *icon = video->wm_icon; |
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1690 } |
| 0 | 1691 } |
| 1692 } | |
| 1693 | |
|
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1694 /* Utility function used by SDL_WM_SetIcon(); |
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1695 * flags & 1 for color key, flags & 2 for alpha channel. */ |
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1696 static void CreateMaskFromColorKeyOrAlpha(SDL_Surface *icon, Uint8 *mask, int flags) |
| 0 | 1697 { |
| 1698 int x, y; | |
| 1699 Uint32 colorkey; | |
| 1700 #define SET_MASKBIT(icon, x, y, mask) \ | |
| 1701 mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8))) | |
| 1702 | |
| 1703 colorkey = icon->format->colorkey; | |
| 1704 switch (icon->format->BytesPerPixel) { | |
| 1705 case 1: { Uint8 *pixels; | |
| 1706 for ( y=0; y<icon->h; ++y ) { | |
| 1707 pixels = (Uint8 *)icon->pixels + y*icon->pitch; | |
| 1708 for ( x=0; x<icon->w; ++x ) { | |
| 1709 if ( *pixels++ == colorkey ) { | |
| 1710 SET_MASKBIT(icon, x, y, mask); | |
| 1711 } | |
| 1712 } | |
| 1713 } | |
| 1714 } | |
| 1715 break; | |
| 1716 | |
| 1717 case 2: { Uint16 *pixels; | |
| 1718 for ( y=0; y<icon->h; ++y ) { | |
| 1719 pixels = (Uint16 *)icon->pixels + | |
| 1720 y*icon->pitch/2; | |
| 1721 for ( x=0; x<icon->w; ++x ) { | |
|
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1722 if ( (flags & 1) && *pixels == colorkey ) { |
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1723 SET_MASKBIT(icon, x, y, mask); |
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1724 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1725 SET_MASKBIT(icon, x, y, mask); |
| 1726 } | |
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1727 pixels++; |
| 0 | 1728 } |
| 1729 } | |
| 1730 } | |
| 1731 break; | |
| 1732 | |
| 1733 case 4: { Uint32 *pixels; | |
| 1734 for ( y=0; y<icon->h; ++y ) { | |
| 1735 pixels = (Uint32 *)icon->pixels + | |
| 1736 y*icon->pitch/4; | |
| 1737 for ( x=0; x<icon->w; ++x ) { | |
|
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1738 if ( (flags & 1) && *pixels == colorkey ) { |
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1739 SET_MASKBIT(icon, x, y, mask); |
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1740 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1741 SET_MASKBIT(icon, x, y, mask); |
| 1742 } | |
|
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1743 pixels++; |
| 0 | 1744 } |
| 1745 } | |
| 1746 } | |
| 1747 break; | |
| 1748 } | |
| 1749 } | |
| 1750 | |
| 1751 /* | |
| 1752 * Sets the window manager icon for the display window. | |
| 1753 */ | |
| 1754 void SDL_WM_SetIcon (SDL_Surface *icon, Uint8 *mask) | |
| 1755 { | |
| 1756 SDL_VideoDevice *video = current_video; | |
| 1757 SDL_VideoDevice *this = current_video; | |
| 1758 | |
| 1759 if ( icon && video->SetIcon ) { | |
| 1760 /* Generate a mask if necessary, and create the icon! */ | |
| 1761 if ( mask == NULL ) { | |
| 1762 int mask_len = icon->h*(icon->w+7)/8; | |
|
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1763 int flags = 0; |
|
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1764 mask = (Uint8 *)SDL_malloc(mask_len); |
| 0 | 1765 if ( mask == NULL ) { |
| 1766 return; | |
| 1767 } | |
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1768 SDL_memset(mask, ~0, mask_len); |
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1769 if ( icon->flags & SDL_SRCCOLORKEY ) flags |= 1; |
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1770 if ( icon->flags & SDL_SRCALPHA ) flags |= 2; |
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1771 if( flags ) { |
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1772 CreateMaskFromColorKeyOrAlpha(icon, mask, flags); |
| 0 | 1773 } |
| 1774 video->SetIcon(video, icon, mask); | |
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1775 SDL_free(mask); |
| 0 | 1776 } else { |
| 1777 video->SetIcon(this, icon, mask); | |
| 1778 } | |
| 1779 } | |
| 1780 } | |
| 1781 | |
| 1782 /* | |
| 1783 * Grab or ungrab the keyboard and mouse input. | |
| 1784 * This function returns the final grab mode after calling the | |
| 1785 * driver dependent function. | |
| 1786 */ | |
| 1787 static SDL_GrabMode SDL_WM_GrabInputRaw(SDL_GrabMode mode) | |
| 1788 { | |
| 1789 SDL_VideoDevice *video = current_video; | |
| 1790 SDL_VideoDevice *this = current_video; | |
| 1791 | |
| 1792 /* Only do something if we have support for grabs */ | |
| 1793 if ( video->GrabInput == NULL ) { | |
| 1794 return(video->input_grab); | |
| 1795 } | |
| 1796 | |
| 1797 /* If the final grab mode if off, only then do we actually grab */ | |
| 1798 #ifdef DEBUG_GRAB | |
| 1799 printf("SDL_WM_GrabInputRaw(%d) ... ", mode); | |
| 1800 #endif | |
| 1801 if ( mode == SDL_GRAB_OFF ) { | |
| 1802 if ( video->input_grab != SDL_GRAB_OFF ) { | |
| 1803 mode = video->GrabInput(this, mode); | |
| 1804 } | |
| 1805 } else { | |
| 1806 if ( video->input_grab == SDL_GRAB_OFF ) { | |
| 1807 mode = video->GrabInput(this, mode); | |
| 1808 } | |
| 1809 } | |
| 1810 if ( mode != video->input_grab ) { | |
| 1811 video->input_grab = mode; | |
| 1812 if ( video->CheckMouseMode ) { | |
| 1813 video->CheckMouseMode(this); | |
| 1814 } | |
| 1815 } | |
| 1816 #ifdef DEBUG_GRAB | |
| 1817 printf("Final mode %d\n", video->input_grab); | |
| 1818 #endif | |
| 1819 | |
| 1820 /* Return the final grab state */ | |
| 1821 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1822 mode -= SDL_GRAB_FULLSCREEN; | |
| 1823 } | |
| 1824 return(mode); | |
| 1825 } | |
| 1826 SDL_GrabMode SDL_WM_GrabInput(SDL_GrabMode mode) | |
| 1827 { | |
| 1828 SDL_VideoDevice *video = current_video; | |
| 1829 | |
|
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1830 /* If the video isn't initialized yet, we can't do anything */ |
|
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1831 if ( ! video ) { |
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1832 return SDL_GRAB_OFF; |
|
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1833 } |
| 0 | 1834 |
| 1835 /* Return the current mode on query */ | |
| 1836 if ( mode == SDL_GRAB_QUERY ) { | |
| 1837 mode = video->input_grab; | |
| 1838 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1839 mode -= SDL_GRAB_FULLSCREEN; | |
| 1840 } | |
| 1841 return(mode); | |
| 1842 } | |
| 1843 | |
| 1844 #ifdef DEBUG_GRAB | |
| 1845 printf("SDL_WM_GrabInput(%d) ... ", mode); | |
| 1846 #endif | |
| 1847 /* If the video surface is fullscreen, we always grab */ | |
| 1848 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1849 mode -= SDL_GRAB_FULLSCREEN; | |
| 1850 } | |
| 1851 if ( SDL_VideoSurface && (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { | |
| 1852 mode += SDL_GRAB_FULLSCREEN; | |
| 1853 } | |
| 1854 return(SDL_WM_GrabInputRaw(mode)); | |
| 1855 } | |
| 1856 static SDL_GrabMode SDL_WM_GrabInputOff(void) | |
| 1857 { | |
| 1858 SDL_GrabMode mode; | |
| 1859 | |
| 1860 /* First query the current grab state */ | |
| 1861 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 1862 | |
| 1863 /* Now explicitly turn off input grab */ | |
| 1864 SDL_WM_GrabInputRaw(SDL_GRAB_OFF); | |
| 1865 | |
| 1866 /* Return the old state */ | |
| 1867 return(mode); | |
| 1868 } | |
| 1869 | |
| 1870 /* | |
| 1871 * Iconify the window in window managed environments. | |
| 1872 * A successful iconification will result in an SDL_APPACTIVE loss event. | |
| 1873 */ | |
| 1874 int SDL_WM_IconifyWindow(void) | |
| 1875 { | |
| 1876 SDL_VideoDevice *video = current_video; | |
| 1877 SDL_VideoDevice *this = current_video; | |
| 1878 int retval; | |
| 1879 | |
| 1880 retval = 0; | |
| 1881 if ( video->IconifyWindow ) { | |
| 1882 retval = video->IconifyWindow(this); | |
| 1883 } | |
| 1884 return(retval); | |
| 1885 } | |
| 1886 | |
| 1887 /* | |
| 1888 * Toggle fullscreen mode | |
| 1889 */ | |
| 1890 int SDL_WM_ToggleFullScreen(SDL_Surface *surface) | |
| 1891 { | |
| 1892 SDL_VideoDevice *video = current_video; | |
| 1893 SDL_VideoDevice *this = current_video; | |
| 1894 int toggled; | |
| 1895 | |
| 1896 toggled = 0; | |
| 1897 if ( SDL_PublicSurface && (surface == SDL_PublicSurface) && | |
| 1898 video->ToggleFullScreen ) { | |
| 1899 if ( surface->flags & SDL_FULLSCREEN ) { | |
| 1900 toggled = video->ToggleFullScreen(this, 0); | |
| 1901 if ( toggled ) { | |
| 1902 SDL_VideoSurface->flags &= ~SDL_FULLSCREEN; | |
| 1903 SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; | |
| 1904 } | |
| 1905 } else { | |
| 1906 toggled = video->ToggleFullScreen(this, 1); | |
| 1907 if ( toggled ) { | |
| 1908 SDL_VideoSurface->flags |= SDL_FULLSCREEN; | |
| 1909 SDL_PublicSurface->flags |= SDL_FULLSCREEN; | |
| 1910 } | |
| 1911 } | |
| 1912 /* Double-check the grab state inside SDL_WM_GrabInput() */ | |
| 1913 if ( toggled ) { | |
| 1914 SDL_WM_GrabInput(video->input_grab); | |
| 1915 } | |
| 1916 } | |
| 1917 return(toggled); | |
| 1918 } | |
| 1919 | |
| 1920 /* | |
| 1921 * Get some platform dependent window manager information | |
| 1922 */ | |
| 1923 int SDL_GetWMInfo (SDL_SysWMinfo *info) | |
| 1924 { | |
| 1925 SDL_VideoDevice *video = current_video; | |
| 1926 SDL_VideoDevice *this = current_video; | |
| 1927 | |
| 1928 if ( video && video->GetWMInfo ) { | |
| 1929 return(video->GetWMInfo(this, info)); | |
| 1930 } else { | |
| 1931 return(0); | |
| 1932 } | |
| 1933 } |