Mercurial > sdl-ios-xcode
annotate src/video/SDL_video.c @ 4431:d660ca4f7b1f SDL-1.2
Fixed bug 944
Tatu Kilappa 2010-02-11 12:13:20 PST
When compiling with -Wconversion, gcc complains about a cast in SDL_endian.h
that might change the result as we are casting from an int into an Uint16. This
is of course not visible unless we are on a non-x86 platform where the
assembler is not available.
While it's not really an error, the warning is really annoying. To fix, change
SDL_endian.h line 87 to:
return(Uint16)((x<<8)|(x>>8));
Thank you.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 13 Apr 2010 21:46:10 -0700 |
| parents | ae9c094e9200 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 4159 | 3 Copyright (C) 1997-2009 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 | |
| 4165 | 66 #if SDL_VIDEO_DRIVER_PS3 |
| 67 &PS3_bootstrap, | |
| 68 #endif | |
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69 #if SDL_VIDEO_DRIVER_GGI |
| 0 | 70 &GGI_bootstrap, |
| 71 #endif | |
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72 #if SDL_VIDEO_DRIVER_VGL |
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73 &VGL_bootstrap, |
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74 #endif |
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75 #if SDL_VIDEO_DRIVER_SVGALIB |
| 0 | 76 &SVGALIB_bootstrap, |
| 77 #endif | |
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78 #if SDL_VIDEO_DRIVER_GAPI |
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79 &GAPI_bootstrap, |
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80 #endif |
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81 #if SDL_VIDEO_DRIVER_WINDIB |
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82 &WINDIB_bootstrap, |
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83 #endif |
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84 #if SDL_VIDEO_DRIVER_DDRAW |
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85 &DIRECTX_bootstrap, |
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86 #endif |
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87 #if SDL_VIDEO_DRIVER_BWINDOW |
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88 &BWINDOW_bootstrap, |
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89 #endif |
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90 #if SDL_VIDEO_DRIVER_TOOLBOX |
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91 &TOOLBOX_bootstrap, |
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92 #endif |
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93 #if SDL_VIDEO_DRIVER_DRAWSPROCKET |
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94 &DSp_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_NDS |
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115 &NDS_bootstrap, |
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116 #endif |
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117 #if SDL_VIDEO_DRIVER_RISCOS |
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118 &RISCOS_bootstrap, |
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119 #endif |
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120 #if SDL_VIDEO_DRIVER_OS2FS |
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121 &OS2FSLib_bootstrap, |
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122 #endif |
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123 #if SDL_VIDEO_DRIVER_AALIB |
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124 &AALIB_bootstrap, |
| 0 | 125 #endif |
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126 #if SDL_VIDEO_DRIVER_CACA |
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127 &CACA_bootstrap, |
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128 #endif |
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129 #if SDL_VIDEO_DRIVER_DUMMY |
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130 &DUMMY_bootstrap, |
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131 #endif |
| 0 | 132 NULL |
| 133 }; | |
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134 |
| 0 | 135 SDL_VideoDevice *current_video = NULL; |
| 136 | |
| 137 /* Various local functions */ | |
| 138 int SDL_VideoInit(const char *driver_name, Uint32 flags); | |
| 139 void SDL_VideoQuit(void); | |
| 140 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect* rects); | |
| 141 | |
| 142 static SDL_GrabMode SDL_WM_GrabInputOff(void); | |
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143 #if SDL_VIDEO_OPENGL |
| 0 | 144 static int lock_count = 0; |
| 145 #endif | |
| 146 | |
| 147 | |
| 148 /* | |
| 149 * Initialize the video and event subsystems -- determine native pixel format | |
| 150 */ | |
| 151 int SDL_VideoInit (const char *driver_name, Uint32 flags) | |
| 152 { | |
| 153 SDL_VideoDevice *video; | |
| 154 int index; | |
| 155 int i; | |
| 156 SDL_PixelFormat vformat; | |
| 157 Uint32 video_flags; | |
| 158 | |
| 159 /* Toggle the event thread flags, based on OS requirements */ | |
| 160 #if defined(MUST_THREAD_EVENTS) | |
| 161 flags |= SDL_INIT_EVENTTHREAD; | |
| 162 #elif defined(CANT_THREAD_EVENTS) | |
| 163 if ( (flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD ) { | |
| 164 SDL_SetError("OS doesn't support threaded events"); | |
| 165 return(-1); | |
| 166 } | |
| 167 #endif | |
| 168 | |
| 169 /* Check to make sure we don't overwrite 'current_video' */ | |
| 170 if ( current_video != NULL ) { | |
| 171 SDL_VideoQuit(); | |
| 172 } | |
| 173 | |
| 174 /* Select the proper video driver */ | |
| 175 index = 0; | |
| 176 video = NULL; | |
| 177 if ( driver_name != NULL ) { | |
| 178 #if 0 /* This will be replaced with a better driver selection API */ | |
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179 if ( SDL_strrchr(driver_name, ':') != NULL ) { |
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180 index = atoi(SDL_strrchr(driver_name, ':')+1); |
| 0 | 181 } |
| 182 #endif | |
| 183 for ( i=0; bootstrap[i]; ++i ) { | |
| 3882 | 184 if ( SDL_strcasecmp(bootstrap[i]->name, driver_name) == 0) { |
| 0 | 185 if ( bootstrap[i]->available() ) { |
| 186 video = bootstrap[i]->create(index); | |
| 187 break; | |
| 188 } | |
| 189 } | |
| 190 } | |
| 191 } else { | |
| 192 for ( i=0; bootstrap[i]; ++i ) { | |
| 193 if ( bootstrap[i]->available() ) { | |
| 194 video = bootstrap[i]->create(index); | |
| 195 if ( video != NULL ) { | |
| 196 break; | |
| 197 } | |
| 198 } | |
| 199 } | |
| 200 } | |
| 201 if ( video == NULL ) { | |
| 202 SDL_SetError("No available video device"); | |
| 203 return(-1); | |
| 204 } | |
| 205 current_video = video; | |
| 206 current_video->name = bootstrap[i]->name; | |
| 207 | |
| 208 /* Do some basic variable initialization */ | |
| 209 video->screen = NULL; | |
| 210 video->shadow = NULL; | |
| 211 video->visible = NULL; | |
| 212 video->physpal = NULL; | |
| 213 video->gammacols = NULL; | |
| 214 video->gamma = NULL; | |
| 215 video->wm_title = NULL; | |
| 216 video->wm_icon = NULL; | |
| 217 video->offset_x = 0; | |
| 218 video->offset_y = 0; | |
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219 SDL_memset(&video->info, 0, (sizeof video->info)); |
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220 |
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221 video->displayformatalphapixel = NULL; |
| 0 | 222 |
| 223 /* Set some very sane GL defaults */ | |
| 224 video->gl_config.driver_loaded = 0; | |
| 225 video->gl_config.dll_handle = NULL; | |
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226 video->gl_config.red_size = 3; |
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227 video->gl_config.green_size = 3; |
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228 video->gl_config.blue_size = 2; |
| 0 | 229 video->gl_config.alpha_size = 0; |
| 230 video->gl_config.buffer_size = 0; | |
| 231 video->gl_config.depth_size = 16; | |
| 232 video->gl_config.stencil_size = 0; | |
| 233 video->gl_config.double_buffer = 1; | |
| 234 video->gl_config.accum_red_size = 0; | |
| 235 video->gl_config.accum_green_size = 0; | |
| 236 video->gl_config.accum_blue_size = 0; | |
| 237 video->gl_config.accum_alpha_size = 0; | |
|
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238 video->gl_config.stereo = 0; |
|
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239 video->gl_config.multisamplebuffers = 0; |
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240 video->gl_config.multisamplesamples = 0; |
| 1737 | 241 video->gl_config.accelerated = -1; /* not known, don't set */ |
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242 video->gl_config.swap_control = -1; /* not known, don't set */ |
| 0 | 243 |
| 244 /* Initialize the video subsystem */ | |
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245 SDL_memset(&vformat, 0, sizeof(vformat)); |
| 0 | 246 if ( video->VideoInit(video, &vformat) < 0 ) { |
| 247 SDL_VideoQuit(); | |
| 248 return(-1); | |
| 249 } | |
| 250 | |
| 251 /* Create a zero sized video surface of the appropriate format */ | |
| 252 video_flags = SDL_SWSURFACE; | |
| 253 SDL_VideoSurface = SDL_CreateRGBSurface(video_flags, 0, 0, | |
| 254 vformat.BitsPerPixel, | |
| 255 vformat.Rmask, vformat.Gmask, vformat.Bmask, 0); | |
| 256 if ( SDL_VideoSurface == NULL ) { | |
| 257 SDL_VideoQuit(); | |
| 258 return(-1); | |
| 259 } | |
| 260 SDL_PublicSurface = NULL; /* Until SDL_SetVideoMode() */ | |
| 261 | |
| 262 #if 0 /* Don't change the current palette - may be used by other programs. | |
| 263 * The application can't do anything with the display surface until | |
| 264 * a video mode has been set anyway. :) | |
| 265 */ | |
| 266 /* If we have a palettized surface, create a default palette */ | |
| 267 if ( SDL_VideoSurface->format->palette ) { | |
|
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268 SDL_PixelFormat *vf = SDL_VideoSurface->format; |
| 0 | 269 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 270 video->SetColors(video, | |
| 271 0, vf->palette->ncolors, vf->palette->colors); | |
| 272 } | |
| 273 #endif | |
| 274 video->info.vfmt = SDL_VideoSurface->format; | |
| 275 | |
| 276 /* Start the event loop */ | |
| 277 if ( SDL_StartEventLoop(flags) < 0 ) { | |
| 278 SDL_VideoQuit(); | |
| 279 return(-1); | |
| 280 } | |
| 281 SDL_CursorInit(flags & SDL_INIT_EVENTTHREAD); | |
| 282 | |
| 283 /* We're ready to go! */ | |
| 284 return(0); | |
| 285 } | |
| 286 | |
| 287 char *SDL_VideoDriverName(char *namebuf, int maxlen) | |
| 288 { | |
| 289 if ( current_video != NULL ) { | |
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290 SDL_strlcpy(namebuf, current_video->name, maxlen); |
| 0 | 291 return(namebuf); |
| 292 } | |
| 293 return(NULL); | |
| 294 } | |
| 295 | |
| 296 /* | |
| 297 * Get the current display surface | |
| 298 */ | |
| 299 SDL_Surface *SDL_GetVideoSurface(void) | |
| 300 { | |
| 301 SDL_Surface *visible; | |
| 302 | |
| 303 visible = NULL; | |
| 304 if ( current_video ) { | |
| 305 visible = current_video->visible; | |
| 306 } | |
| 307 return(visible); | |
| 308 } | |
| 309 | |
| 310 /* | |
| 311 * Get the current information about the video hardware | |
| 312 */ | |
| 313 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
| 314 { | |
| 315 const SDL_VideoInfo *info; | |
| 316 | |
| 317 info = NULL; | |
| 318 if ( current_video ) { | |
| 319 info = ¤t_video->info; | |
| 320 } | |
| 321 return(info); | |
| 322 } | |
| 323 | |
| 324 /* | |
| 325 * Return a pointer to an array of available screen dimensions for the | |
| 326 * given format, sorted largest to smallest. Returns NULL if there are | |
| 327 * no dimensions available for a particular format, or (SDL_Rect **)-1 | |
| 328 * if any dimension is okay for the given format. If 'format' is NULL, | |
| 329 * the mode list will be for the format given by SDL_GetVideoInfo()->vfmt | |
| 330 */ | |
| 331 SDL_Rect ** SDL_ListModes (SDL_PixelFormat *format, Uint32 flags) | |
| 332 { | |
| 333 SDL_VideoDevice *video = current_video; | |
| 334 SDL_VideoDevice *this = current_video; | |
| 335 SDL_Rect **modes; | |
| 336 | |
| 337 modes = NULL; | |
| 338 if ( SDL_VideoSurface ) { | |
| 339 if ( format == NULL ) { | |
| 340 format = SDL_VideoSurface->format; | |
| 341 } | |
| 342 modes = video->ListModes(this, format, flags); | |
| 343 } | |
| 344 return(modes); | |
| 345 } | |
| 346 | |
| 347 /* | |
| 348 * Check to see if a particular video mode is supported. | |
| 349 * It returns 0 if the requested mode is not supported under any bit depth, | |
| 350 * or returns the bits-per-pixel of the closest available mode with the | |
| 351 * given width and height. If this bits-per-pixel is different from the | |
| 352 * one used when setting the video mode, SDL_SetVideoMode() will succeed, | |
| 353 * but will emulate the requested bits-per-pixel with a shadow surface. | |
| 354 */ | |
| 355 static Uint8 SDL_closest_depths[4][8] = { | |
| 356 /* 8 bit closest depth ordering */ | |
| 357 { 0, 8, 16, 15, 32, 24, 0, 0 }, | |
| 358 /* 15,16 bit closest depth ordering */ | |
| 359 { 0, 16, 15, 32, 24, 8, 0, 0 }, | |
| 360 /* 24 bit closest depth ordering */ | |
| 361 { 0, 24, 32, 16, 15, 8, 0, 0 }, | |
| 362 /* 32 bit closest depth ordering */ | |
| 363 { 0, 32, 16, 15, 24, 8, 0, 0 } | |
| 364 }; | |
| 365 | |
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366 |
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367 #ifdef __MACOS__ /* MPW optimization bug? */ |
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368 #define NEGATIVE_ONE 0xFFFFFFFF |
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369 #else |
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370 #define NEGATIVE_ONE -1 |
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371 #endif |
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372 |
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373 int SDL_VideoModeOK (int width, int height, int bpp, Uint32 flags) |
| 0 | 374 { |
| 375 int table, b, i; | |
| 376 int supported; | |
| 377 SDL_PixelFormat format; | |
| 378 SDL_Rect **sizes; | |
| 379 | |
| 380 /* Currently 1 and 4 bpp are not supported */ | |
| 381 if ( bpp < 8 || bpp > 32 ) { | |
| 382 return(0); | |
| 383 } | |
|
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384 if ( (width <= 0) || (height <= 0) ) { |
| 0 | 385 return(0); |
| 386 } | |
| 387 | |
| 388 /* Search through the list valid of modes */ | |
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389 SDL_memset(&format, 0, sizeof(format)); |
| 0 | 390 supported = 0; |
| 391 table = ((bpp+7)/8)-1; | |
| 392 SDL_closest_depths[table][0] = bpp; | |
| 393 SDL_closest_depths[table][7] = 0; | |
| 394 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 395 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 396 sizes = SDL_ListModes(&format, flags); | |
| 397 if ( sizes == (SDL_Rect **)0 ) { | |
| 398 /* No sizes supported at this bit-depth */ | |
| 399 continue; | |
| 400 } else | |
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401 if (sizes == (SDL_Rect **)NEGATIVE_ONE) { |
| 0 | 402 /* Any size supported at this bit-depth */ |
| 403 supported = 1; | |
| 404 continue; | |
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405 } else if (current_video->handles_any_size) { |
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406 /* Driver can center a smaller surface to simulate fullscreen */ |
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407 for ( i=0; sizes[i]; ++i ) { |
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408 if ((sizes[i]->w >= width) && (sizes[i]->h >= height)) { |
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409 supported = 1; /* this mode can fit the centered window. */ |
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410 break; |
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411 } |
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412 } |
| 0 | 413 } else |
| 414 for ( i=0; sizes[i]; ++i ) { | |
| 415 if ((sizes[i]->w == width) && (sizes[i]->h == height)) { | |
| 416 supported = 1; | |
| 417 break; | |
| 418 } | |
| 419 } | |
| 420 } | |
| 421 if ( supported ) { | |
| 422 --b; | |
| 423 return(SDL_closest_depths[table][b]); | |
| 424 } else { | |
| 425 return(0); | |
| 426 } | |
| 427 } | |
| 428 | |
| 429 /* | |
| 430 * Get the closest non-emulated video mode to the one requested | |
| 431 */ | |
| 432 static int SDL_GetVideoMode (int *w, int *h, int *BitsPerPixel, Uint32 flags) | |
| 433 { | |
| 434 int table, b, i; | |
| 435 int supported; | |
| 436 int native_bpp; | |
| 437 SDL_PixelFormat format; | |
| 438 SDL_Rect **sizes; | |
| 439 | |
|
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440 /* Check parameters */ |
|
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441 if ( *BitsPerPixel < 8 || *BitsPerPixel > 32 ) { |
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442 SDL_SetError("Invalid bits per pixel (range is {8...32})"); |
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443 return(0); |
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444 } |
|
430
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445 if ((*w <= 0) || (*h <= 0)) { |
|
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446 SDL_SetError("Invalid width or height"); |
|
430
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447 return(0); |
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448 } |
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449 |
| 0 | 450 /* Try the original video mode, get the closest depth */ |
| 451 native_bpp = SDL_VideoModeOK(*w, *h, *BitsPerPixel, flags); | |
| 452 if ( native_bpp == *BitsPerPixel ) { | |
| 453 return(1); | |
| 454 } | |
| 455 if ( native_bpp > 0 ) { | |
| 456 *BitsPerPixel = native_bpp; | |
| 457 return(1); | |
| 458 } | |
| 459 | |
| 460 /* No exact size match at any depth, look for closest match */ | |
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461 SDL_memset(&format, 0, sizeof(format)); |
| 0 | 462 supported = 0; |
| 463 table = ((*BitsPerPixel+7)/8)-1; | |
| 464 SDL_closest_depths[table][0] = *BitsPerPixel; | |
| 465 SDL_closest_depths[table][7] = SDL_VideoSurface->format->BitsPerPixel; | |
| 466 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
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467 int best; |
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468 |
| 0 | 469 format.BitsPerPixel = SDL_closest_depths[table][b]; |
| 470 sizes = SDL_ListModes(&format, flags); | |
| 471 if ( sizes == (SDL_Rect **)0 ) { | |
| 472 /* No sizes supported at this bit-depth */ | |
| 473 continue; | |
| 474 } | |
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475 best=0; |
| 0 | 476 for ( i=0; sizes[i]; ++i ) { |
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477 /* Mode with both dimensions bigger or equal than asked ? */ |
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478 if ((sizes[i]->w >= *w) && (sizes[i]->h >= *h)) { |
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479 /* Mode with any dimension smaller or equal than current best ? */ |
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480 if ((sizes[i]->w <= sizes[best]->w) || (sizes[i]->h <= sizes[best]->h)) { |
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481 /* Now choose the mode that has less pixels */ |
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482 if ((sizes[i]->w * sizes[i]->h) <= (sizes[best]->w * sizes[best]->h)) { |
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483 best=i; |
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484 supported = 1; |
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485 } |
| 0 | 486 } |
| 487 } | |
| 488 } | |
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489 if (supported) { |
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490 *w=sizes[best]->w; |
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491 *h=sizes[best]->h; |
| 0 | 492 *BitsPerPixel = SDL_closest_depths[table][b]; |
| 493 } | |
| 494 } | |
| 495 if ( ! supported ) { | |
| 496 SDL_SetError("No video mode large enough for %dx%d", *w, *h); | |
| 497 } | |
| 498 return(supported); | |
| 499 } | |
| 500 | |
| 501 /* This should probably go somewhere else -- like SDL_surface.c */ | |
| 502 static void SDL_ClearSurface(SDL_Surface *surface) | |
| 503 { | |
| 504 Uint32 black; | |
| 505 | |
| 506 black = SDL_MapRGB(surface->format, 0, 0, 0); | |
| 507 SDL_FillRect(surface, NULL, black); | |
| 508 if ((surface->flags&SDL_HWSURFACE) && (surface->flags&SDL_DOUBLEBUF)) { | |
| 509 SDL_Flip(surface); | |
| 510 SDL_FillRect(surface, NULL, black); | |
| 511 } | |
|
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512 if (surface->flags&SDL_FULLSCREEN) { |
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513 SDL_Flip(surface); |
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514 } |
| 0 | 515 } |
| 516 | |
| 517 /* | |
| 518 * Create a shadow surface suitable for fooling the app. :-) | |
| 519 */ | |
| 520 static void SDL_CreateShadowSurface(int depth) | |
| 521 { | |
| 522 Uint32 Rmask, Gmask, Bmask; | |
| 523 | |
| 524 /* Allocate the shadow surface */ | |
| 525 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 526 Rmask = (SDL_VideoSurface->format)->Rmask; | |
| 527 Gmask = (SDL_VideoSurface->format)->Gmask; | |
| 528 Bmask = (SDL_VideoSurface->format)->Bmask; | |
| 529 } else { | |
| 530 Rmask = Gmask = Bmask = 0; | |
| 531 } | |
| 532 SDL_ShadowSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
| 533 SDL_VideoSurface->w, SDL_VideoSurface->h, | |
| 534 depth, Rmask, Gmask, Bmask, 0); | |
| 535 if ( SDL_ShadowSurface == NULL ) { | |
| 536 return; | |
| 537 } | |
| 538 | |
| 539 /* 8-bit shadow surfaces report that they have exclusive palette */ | |
| 540 if ( SDL_ShadowSurface->format->palette ) { | |
| 541 SDL_ShadowSurface->flags |= SDL_HWPALETTE; | |
| 542 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
|
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543 SDL_memcpy(SDL_ShadowSurface->format->palette->colors, |
| 0 | 544 SDL_VideoSurface->format->palette->colors, |
| 545 SDL_VideoSurface->format->palette->ncolors* | |
| 546 sizeof(SDL_Color)); | |
| 547 } else { | |
| 548 SDL_DitherColors( | |
| 549 SDL_ShadowSurface->format->palette->colors, depth); | |
| 550 } | |
| 551 } | |
| 552 | |
| 553 /* If the video surface is resizable, the shadow should say so */ | |
| 554 if ( (SDL_VideoSurface->flags & SDL_RESIZABLE) == SDL_RESIZABLE ) { | |
| 555 SDL_ShadowSurface->flags |= SDL_RESIZABLE; | |
| 556 } | |
| 557 /* If the video surface has no frame, the shadow should say so */ | |
| 558 if ( (SDL_VideoSurface->flags & SDL_NOFRAME) == SDL_NOFRAME ) { | |
| 559 SDL_ShadowSurface->flags |= SDL_NOFRAME; | |
| 560 } | |
| 561 /* If the video surface is fullscreen, the shadow should say so */ | |
| 562 if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 563 SDL_ShadowSurface->flags |= SDL_FULLSCREEN; | |
| 564 } | |
| 565 /* If the video surface is flippable, the shadow should say so */ | |
| 566 if ( (SDL_VideoSurface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 567 SDL_ShadowSurface->flags |= SDL_DOUBLEBUF; | |
| 568 } | |
| 569 return; | |
| 570 } | |
| 571 | |
|
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572 #ifdef __QNXNTO__ |
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573 #include <sys/neutrino.h> |
|
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574 #endif /* __QNXNTO__ */ |
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575 |
| 0 | 576 /* |
| 577 * Set the requested video mode, allocating a shadow buffer if necessary. | |
| 578 */ | |
| 579 SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags) | |
| 580 { | |
| 581 SDL_VideoDevice *video, *this; | |
| 582 SDL_Surface *prev_mode, *mode; | |
| 583 int video_w; | |
| 584 int video_h; | |
| 585 int video_bpp; | |
| 586 int is_opengl; | |
| 587 SDL_GrabMode saved_grab; | |
| 588 | |
| 589 /* Start up the video driver, if necessary.. | |
| 590 WARNING: This is the only function protected this way! | |
| 591 */ | |
| 592 if ( ! current_video ) { | |
| 593 if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE) < 0 ) { | |
| 594 return(NULL); | |
| 595 } | |
| 596 } | |
| 597 this = video = current_video; | |
| 598 | |
|
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Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
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599 /* Default to the current width and height */ |
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Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
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600 if ( width == 0 ) { |
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Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
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601 width = video->info.current_w; |
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602 } |
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Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
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603 if ( height == 0 ) { |
|
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Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
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604 height = video->info.current_h; |
|
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Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
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605 } |
| 0 | 606 /* Default to the current video bpp */ |
| 607 if ( bpp == 0 ) { | |
| 608 flags |= SDL_ANYFORMAT; | |
| 609 bpp = SDL_VideoSurface->format->BitsPerPixel; | |
| 610 } | |
| 611 | |
| 612 /* Get a good video mode, the closest one possible */ | |
| 613 video_w = width; | |
| 614 video_h = height; | |
| 615 video_bpp = bpp; | |
| 616 if ( ! SDL_GetVideoMode(&video_w, &video_h, &video_bpp, flags) ) { | |
| 617 return(NULL); | |
| 618 } | |
| 619 | |
| 620 /* Check the requested flags */ | |
| 621 /* There's no palette in > 8 bits-per-pixel mode */ | |
| 622 if ( video_bpp > 8 ) { | |
| 623 flags &= ~SDL_HWPALETTE; | |
| 624 } | |
| 625 #if 0 | |
| 626 if ( (flags&SDL_FULLSCREEN) != SDL_FULLSCREEN ) { | |
| 627 /* There's no windowed double-buffering */ | |
| 628 flags &= ~SDL_DOUBLEBUF; | |
| 629 } | |
| 630 #endif | |
| 631 if ( (flags&SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 632 /* Use hardware surfaces when double-buffering */ | |
| 633 flags |= SDL_HWSURFACE; | |
| 634 } | |
| 635 | |
| 636 is_opengl = ( ( flags & SDL_OPENGL ) == SDL_OPENGL ); | |
| 637 if ( is_opengl ) { | |
| 638 /* These flags are for 2D video modes only */ | |
| 639 flags &= ~(SDL_HWSURFACE|SDL_DOUBLEBUF); | |
| 640 } | |
| 641 | |
|
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642 /* Reset the keyboard here so event callbacks can run */ |
|
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643 SDL_ResetKeyboard(); |
|
460
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644 SDL_ResetMouse(); |
| 4249 | 645 SDL_SetMouseRange(width, height); |
| 1296 | 646 SDL_cursorstate &= ~CURSOR_USINGSW; |
|
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647 |
| 0 | 648 /* Clean up any previous video mode */ |
| 649 if ( SDL_PublicSurface != NULL ) { | |
| 650 SDL_PublicSurface = NULL; | |
| 651 } | |
| 652 if ( SDL_ShadowSurface != NULL ) { | |
| 653 SDL_Surface *ready_to_go; | |
| 654 ready_to_go = SDL_ShadowSurface; | |
| 655 SDL_ShadowSurface = NULL; | |
| 656 SDL_FreeSurface(ready_to_go); | |
| 657 } | |
| 658 if ( video->physpal ) { | |
|
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659 SDL_free(video->physpal->colors); |
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660 SDL_free(video->physpal); |
| 0 | 661 video->physpal = NULL; |
| 662 } | |
| 663 if( video->gammacols) { | |
|
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664 SDL_free(video->gammacols); |
| 0 | 665 video->gammacols = NULL; |
| 666 } | |
| 667 | |
| 668 /* Save the previous grab state and turn off grab for mode switch */ | |
| 669 saved_grab = SDL_WM_GrabInputOff(); | |
| 670 | |
| 671 /* Try to set the video mode, along with offset and clipping */ | |
| 672 prev_mode = SDL_VideoSurface; | |
| 673 SDL_LockCursor(); | |
| 674 SDL_VideoSurface = NULL; /* In case it's freed by driver */ | |
| 675 mode = video->SetVideoMode(this, prev_mode,video_w,video_h,video_bpp,flags); | |
| 676 if ( mode ) { /* Prevent resize events from mode change */ | |
| 1190 | 677 /* But not on OS/2 */ |
| 678 #ifndef __OS2__ | |
| 0 | 679 SDL_PrivateResize(mode->w, mode->h); |
| 1190 | 680 #endif |
|
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Fix a crash if an OpenGL video mode can't be set.
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681 |
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Fix a crash if an OpenGL video mode can't be set.
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682 /* Sam - If we asked for OpenGL mode, and didn't get it, fail */ |
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683 if ( is_opengl && !(mode->flags & SDL_OPENGL) ) { |
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684 mode = NULL; |
|
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685 SDL_SetError("OpenGL not available"); |
|
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686 } |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
687 } |
| 0 | 688 /* |
| 689 * rcg11292000 | |
| 690 * If you try to set an SDL_OPENGL surface, and fail to find a | |
| 691 * matching visual, then the next call to SDL_SetVideoMode() | |
| 692 * will segfault, since we no longer point to a dummy surface, | |
| 693 * but rather NULL. | |
| 694 * Sam 11/29/00 | |
| 695 * WARNING, we need to make sure that the previous mode hasn't | |
| 696 * already been freed by the video driver. What do we do in | |
| 697 * that case? Should we call SDL_VideoInit() again? | |
| 698 */ | |
| 699 SDL_VideoSurface = (mode != NULL) ? mode : prev_mode; | |
| 700 | |
| 701 if ( (mode != NULL) && (!is_opengl) ) { | |
| 702 /* Sanity check */ | |
| 703 if ( (mode->w < width) || (mode->h < height) ) { | |
| 704 SDL_SetError("Video mode smaller than requested"); | |
| 705 return(NULL); | |
| 706 } | |
| 707 | |
| 708 /* If we have a palettized surface, create a default palette */ | |
| 709 if ( mode->format->palette ) { | |
|
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710 SDL_PixelFormat *vf = mode->format; |
| 0 | 711 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 712 video->SetColors(this, 0, vf->palette->ncolors, | |
| 713 vf->palette->colors); | |
| 714 } | |
| 715 | |
| 716 /* Clear the surface to black */ | |
| 717 video->offset_x = 0; | |
| 718 video->offset_y = 0; | |
| 719 mode->offset = 0; | |
| 720 SDL_SetClipRect(mode, NULL); | |
| 721 SDL_ClearSurface(mode); | |
| 722 | |
| 723 /* Now adjust the offsets to match the desired mode */ | |
| 724 video->offset_x = (mode->w-width)/2; | |
| 725 video->offset_y = (mode->h-height)/2; | |
| 726 mode->offset = video->offset_y*mode->pitch + | |
| 727 video->offset_x*mode->format->BytesPerPixel; | |
| 728 #ifdef DEBUG_VIDEO | |
| 729 fprintf(stderr, | |
| 730 "Requested mode: %dx%dx%d, obtained mode %dx%dx%d (offset %d)\n", | |
| 731 width, height, bpp, | |
| 732 mode->w, mode->h, mode->format->BitsPerPixel, mode->offset); | |
| 733 #endif | |
| 734 mode->w = width; | |
| 735 mode->h = height; | |
| 736 SDL_SetClipRect(mode, NULL); | |
| 737 } | |
| 738 SDL_ResetCursor(); | |
| 739 SDL_UnlockCursor(); | |
| 740 | |
| 741 /* If we failed setting a video mode, return NULL... (Uh Oh!) */ | |
| 742 if ( mode == NULL ) { | |
| 743 return(NULL); | |
| 744 } | |
| 745 | |
| 746 /* If there is no window manager, set the SDL_NOFRAME flag */ | |
| 747 if ( ! video->info.wm_available ) { | |
| 748 mode->flags |= SDL_NOFRAME; | |
| 749 } | |
| 750 | |
| 751 /* Reset the mouse cursor and grab for new video mode */ | |
| 752 SDL_SetCursor(NULL); | |
| 753 if ( video->UpdateMouse ) { | |
| 754 video->UpdateMouse(this); | |
| 755 } | |
| 756 SDL_WM_GrabInput(saved_grab); | |
| 757 SDL_GetRelativeMouseState(NULL, NULL); /* Clear first large delta */ | |
| 758 | |
|
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759 #if SDL_VIDEO_OPENGL |
|
650
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760 /* Load GL symbols (before MakeCurrent, where we need glGetString). */ |
|
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761 if ( flags & (SDL_OPENGL | SDL_OPENGLBLIT) ) { |
|
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762 |
|
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Date: Mon, 24 Jan 2005 21:37:56 +0800
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763 #if defined(__QNXNTO__) && (_NTO_VERSION < 630) |
|
916
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Date: Sun, 25 Jul 2004 23:10:03 +0800
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764 #define __SDL_NOGETPROCADDR__ |
|
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765 #elif defined(__MINT__) |
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766 #define __SDL_NOGETPROCADDR__ |
|
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767 #endif |
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768 #ifdef __SDL_NOGETPROCADDR__ |
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769 #define SDL_PROC(ret,func,params) video->func=func; |
|
663
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770 #else |
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771 #define SDL_PROC(ret,func,params) \ |
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772 do { \ |
|
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773 video->func = SDL_GL_GetProcAddress(#func); \ |
|
4ab6d1fd028f
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774 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>
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|
775 SDL_SetError("Couldn't load GL function %s: %s\n", #func, SDL_GetError()); \ |
|
910
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776 return(NULL); \ |
|
4ab6d1fd028f
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777 } \ |
|
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778 } while ( 0 ); |
|
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779 |
|
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780 #endif /* __SDL_NOGETPROCADDR__ */ |
|
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|
781 |
|
650
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
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782 #include "SDL_glfuncs.h" |
|
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diff
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|
783 #undef SDL_PROC |
|
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784 } |
|
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Sam Lantinga <slouken@libsdl.org>
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785 #endif /* SDL_VIDEO_OPENGL */ |
|
650
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|
786 |
| 0 | 787 /* If we're running OpenGL, make the context current */ |
| 788 if ( (video->screen->flags & SDL_OPENGL) && | |
| 789 video->GL_MakeCurrent ) { | |
| 790 if ( video->GL_MakeCurrent(this) < 0 ) { | |
| 791 return(NULL); | |
| 792 } | |
| 793 } | |
| 794 | |
| 795 /* Set up a fake SDL surface for OpenGL "blitting" */ | |
| 796 if ( (flags & SDL_OPENGLBLIT) == SDL_OPENGLBLIT ) { | |
| 797 /* Load GL functions for performing the texture updates */ | |
|
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798 #if SDL_VIDEO_OPENGL |
| 0 | 799 |
| 800 /* Create a software surface for blitting */ | |
| 801 #ifdef GL_VERSION_1_2 | |
| 802 /* If the implementation either supports the packed pixels | |
| 803 extension, or implements the core OpenGL 1.2 API, it will | |
| 804 support the GL_UNSIGNED_SHORT_5_6_5 texture format. | |
| 805 */ | |
| 806 if ( (bpp == 16) && | |
|
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807 (SDL_strstr((const char *)video->glGetString(GL_EXTENSIONS), "GL_EXT_packed_pixels") || |
|
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808 (SDL_atof((const char *)video->glGetString(GL_VERSION)) >= 1.2f)) |
|
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|
809 ) { |
| 0 | 810 video->is_32bit = 0; |
| 811 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 812 flags, | |
| 813 width, | |
| 814 height, | |
| 815 16, | |
| 816 31 << 11, | |
| 817 63 << 5, | |
| 818 31, | |
| 819 0 | |
| 820 ); | |
| 821 } | |
| 822 else | |
| 823 #endif /* OpenGL 1.2 */ | |
| 824 { | |
| 825 video->is_32bit = 1; | |
| 826 SDL_VideoSurface = SDL_CreateRGBSurface( | |
| 827 flags, | |
| 828 width, | |
| 829 height, | |
| 830 32, | |
| 831 #if SDL_BYTEORDER == SDL_LIL_ENDIAN | |
| 832 0x000000FF, | |
| 833 0x0000FF00, | |
| 834 0x00FF0000, | |
| 835 0xFF000000 | |
| 836 #else | |
| 837 0xFF000000, | |
| 838 0x00FF0000, | |
| 839 0x0000FF00, | |
| 840 0x000000FF | |
| 841 #endif | |
| 842 ); | |
| 843 } | |
| 844 if ( ! SDL_VideoSurface ) { | |
| 845 return(NULL); | |
| 846 } | |
| 847 SDL_VideoSurface->flags = mode->flags | SDL_OPENGLBLIT; | |
| 848 | |
| 849 /* Free the original video mode surface (is this safe?) */ | |
| 850 SDL_FreeSurface(mode); | |
| 851 | |
|
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852 /* Set the surface completely opaque & white by default */ |
|
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853 SDL_memset( SDL_VideoSurface->pixels, 255, SDL_VideoSurface->h * SDL_VideoSurface->pitch ); |
| 0 | 854 video->glGenTextures( 1, &video->texture ); |
| 855 video->glBindTexture( GL_TEXTURE_2D, video->texture ); | |
| 856 video->glTexImage2D( | |
| 857 GL_TEXTURE_2D, | |
| 858 0, | |
| 859 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 860 256, | |
| 861 256, | |
| 862 0, | |
| 863 video->is_32bit ? GL_RGBA : GL_RGB, | |
| 864 #ifdef GL_VERSION_1_2 | |
| 865 video->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 866 #else | |
| 867 GL_UNSIGNED_BYTE, | |
| 868 #endif | |
| 869 NULL); | |
| 870 | |
| 871 video->UpdateRects = SDL_GL_UpdateRectsLock; | |
| 872 #else | |
|
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873 SDL_SetError("Somebody forgot to #define SDL_VIDEO_OPENGL"); |
| 0 | 874 return(NULL); |
| 875 #endif | |
| 876 } | |
| 877 | |
| 878 /* Create a shadow surface if necessary */ | |
| 879 /* There are three conditions under which we create a shadow surface: | |
| 880 1. We need a particular bits-per-pixel that we didn't get. | |
| 881 2. We need a hardware palette and didn't get one. | |
| 882 3. We need a software surface and got a hardware surface. | |
| 883 */ | |
| 884 if ( !(SDL_VideoSurface->flags & SDL_OPENGL) && | |
| 885 ( | |
| 886 ( !(flags&SDL_ANYFORMAT) && | |
| 887 (SDL_VideoSurface->format->BitsPerPixel != bpp)) || | |
| 888 ( (flags&SDL_HWPALETTE) && | |
| 889 !(SDL_VideoSurface->flags&SDL_HWPALETTE)) || | |
| 890 /* If the surface is in hardware, video writes are visible | |
| 891 as soon as they are performed, so we need to buffer them | |
| 892 */ | |
| 893 ( ((flags&SDL_HWSURFACE) == SDL_SWSURFACE) && | |
|
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894 (SDL_VideoSurface->flags&SDL_HWSURFACE)) || |
|
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895 ( (flags&SDL_DOUBLEBUF) && |
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896 (SDL_VideoSurface->flags&SDL_HWSURFACE) && |
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897 !(SDL_VideoSurface->flags&SDL_DOUBLEBUF)) |
| 0 | 898 ) ) { |
| 899 SDL_CreateShadowSurface(bpp); | |
| 900 if ( SDL_ShadowSurface == NULL ) { | |
| 901 SDL_SetError("Couldn't create shadow surface"); | |
| 902 return(NULL); | |
| 903 } | |
| 904 SDL_PublicSurface = SDL_ShadowSurface; | |
| 905 } else { | |
| 906 SDL_PublicSurface = SDL_VideoSurface; | |
| 907 } | |
| 908 video->info.vfmt = SDL_VideoSurface->format; | |
|
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909 video->info.current_w = SDL_VideoSurface->w; |
|
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910 video->info.current_h = SDL_VideoSurface->h; |
| 0 | 911 |
| 912 /* We're done! */ | |
| 913 return(SDL_PublicSurface); | |
| 914 } | |
| 915 | |
| 916 /* | |
| 917 * Convert a surface into the video pixel format. | |
| 918 */ | |
| 919 SDL_Surface * SDL_DisplayFormat (SDL_Surface *surface) | |
| 920 { | |
| 921 Uint32 flags; | |
| 922 | |
| 923 if ( ! SDL_PublicSurface ) { | |
| 924 SDL_SetError("No video mode has been set"); | |
| 925 return(NULL); | |
| 926 } | |
| 927 /* Set the flags appropriate for copying to display surface */ | |
|
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928 if (((SDL_PublicSurface->flags&SDL_HWSURFACE) == SDL_HWSURFACE) && current_video->info.blit_hw) |
|
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929 flags = SDL_HWSURFACE; |
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930 else |
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931 flags = SDL_SWSURFACE; |
| 0 | 932 #ifdef AUTORLE_DISPLAYFORMAT |
| 933 flags |= (surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA)); | |
| 934 flags |= SDL_RLEACCELOK; | |
| 935 #else | |
| 936 flags |= surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA|SDL_RLEACCELOK); | |
| 937 #endif | |
| 938 return(SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags)); | |
| 939 } | |
| 940 | |
| 941 /* | |
| 942 * Convert a surface into a format that's suitable for blitting to | |
| 943 * the screen, but including an alpha channel. | |
| 944 */ | |
| 945 SDL_Surface *SDL_DisplayFormatAlpha(SDL_Surface *surface) | |
| 946 { | |
| 947 SDL_PixelFormat *vf; | |
| 948 SDL_PixelFormat *format; | |
| 949 SDL_Surface *converted; | |
| 950 Uint32 flags; | |
| 951 /* default to ARGB8888 */ | |
| 952 Uint32 amask = 0xff000000; | |
| 953 Uint32 rmask = 0x00ff0000; | |
| 954 Uint32 gmask = 0x0000ff00; | |
| 955 Uint32 bmask = 0x000000ff; | |
| 956 | |
| 957 if ( ! SDL_PublicSurface ) { | |
| 958 SDL_SetError("No video mode has been set"); | |
| 959 return(NULL); | |
| 960 } | |
| 961 vf = SDL_PublicSurface->format; | |
| 962 | |
| 963 switch(vf->BytesPerPixel) { | |
| 964 case 2: | |
| 965 /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}. | |
| 966 For anything else (like ARGB4444) it doesn't matter | |
| 967 since we have no special code for it anyway */ | |
| 968 if ( (vf->Rmask == 0x1f) && | |
| 969 (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) { | |
| 970 rmask = 0xff; | |
| 971 bmask = 0xff0000; | |
| 972 } | |
| 973 break; | |
| 974 | |
| 975 case 3: | |
| 976 case 4: | |
| 977 /* Keep the video format, as long as the high 8 bits are | |
| 978 unused or alpha */ | |
| 979 if ( (vf->Rmask == 0xff) && (vf->Bmask == 0xff0000) ) { | |
| 980 rmask = 0xff; | |
| 981 bmask = 0xff0000; | |
| 982 } | |
| 983 break; | |
| 984 | |
| 985 default: | |
| 986 /* We have no other optimised formats right now. When/if a new | |
| 987 optimised alpha format is written, add the converter here */ | |
| 988 break; | |
| 989 } | |
| 990 format = SDL_AllocFormat(32, rmask, gmask, bmask, amask); | |
| 991 flags = SDL_PublicSurface->flags & SDL_HWSURFACE; | |
| 992 flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); | |
| 993 converted = SDL_ConvertSurface(surface, format, flags); | |
| 994 SDL_FreeFormat(format); | |
| 995 return(converted); | |
| 996 } | |
| 997 | |
| 998 /* | |
| 999 * Update a specific portion of the physical screen | |
| 1000 */ | |
| 1001 void SDL_UpdateRect(SDL_Surface *screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h) | |
| 1002 { | |
| 1003 if ( screen ) { | |
| 1004 SDL_Rect rect; | |
| 1005 | |
| 1006 /* Perform some checking */ | |
| 1007 if ( w == 0 ) | |
| 1008 w = screen->w; | |
| 1009 if ( h == 0 ) | |
| 1010 h = screen->h; | |
| 1011 if ( (int)(x+w) > screen->w ) | |
| 1012 return; | |
| 1013 if ( (int)(y+h) > screen->h ) | |
| 1014 return; | |
| 1015 | |
| 1016 /* Fill the rectangle */ | |
|
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1017 rect.x = (Sint16)x; |
|
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1018 rect.y = (Sint16)y; |
|
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1019 rect.w = (Uint16)w; |
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1020 rect.h = (Uint16)h; |
| 0 | 1021 SDL_UpdateRects(screen, 1, &rect); |
| 1022 } | |
| 1023 } | |
| 1024 void SDL_UpdateRects (SDL_Surface *screen, int numrects, SDL_Rect *rects) | |
| 1025 { | |
| 1026 int i; | |
| 1027 SDL_VideoDevice *video = current_video; | |
| 1028 SDL_VideoDevice *this = current_video; | |
| 1029 | |
|
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1030 if ( (screen->flags & (SDL_OPENGL | SDL_OPENGLBLIT)) == SDL_OPENGL ) { |
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1031 SDL_SetError("OpenGL active, use SDL_GL_SwapBuffers()"); |
|
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1032 return; |
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1033 } |
| 0 | 1034 if ( screen == SDL_ShadowSurface ) { |
| 1035 /* Blit the shadow surface using saved mapping */ | |
|
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1036 SDL_Palette *pal = screen->format->palette; |
| 0 | 1037 SDL_Color *saved_colors = NULL; |
|
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1038 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1039 /* simulated 8bpp, use correct physical palette */ |
| 1040 saved_colors = pal->colors; | |
| 1041 if ( video->gammacols ) { | |
| 1042 /* gamma-corrected palette */ | |
| 1043 pal->colors = video->gammacols; | |
| 1044 } else if ( video->physpal ) { | |
| 1045 /* physical palette different from logical */ | |
| 1046 pal->colors = video->physpal->colors; | |
| 1047 } | |
| 1048 } | |
| 1049 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { | |
| 1050 SDL_LockCursor(); | |
| 1051 SDL_DrawCursor(SDL_ShadowSurface); | |
| 1052 for ( i=0; i<numrects; ++i ) { | |
| 1053 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1054 SDL_VideoSurface, &rects[i]); | |
| 1055 } | |
| 1056 SDL_EraseCursor(SDL_ShadowSurface); | |
| 1057 SDL_UnlockCursor(); | |
| 1058 } else { | |
| 1059 for ( i=0; i<numrects; ++i ) { | |
| 1060 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 1061 SDL_VideoSurface, &rects[i]); | |
| 1062 } | |
| 1063 } | |
|
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1064 if ( saved_colors ) { |
| 0 | 1065 pal->colors = saved_colors; |
|
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1066 } |
| 0 | 1067 |
| 1068 /* Fall through to video surface update */ | |
| 1069 screen = SDL_VideoSurface; | |
| 1070 } | |
| 1071 if ( screen == SDL_VideoSurface ) { | |
| 1072 /* Update the video surface */ | |
| 1073 if ( screen->offset ) { | |
| 1074 for ( i=0; i<numrects; ++i ) { | |
| 1075 rects[i].x += video->offset_x; | |
| 1076 rects[i].y += video->offset_y; | |
| 1077 } | |
| 1078 video->UpdateRects(this, numrects, rects); | |
| 1079 for ( i=0; i<numrects; ++i ) { | |
| 1080 rects[i].x -= video->offset_x; | |
| 1081 rects[i].y -= video->offset_y; | |
| 1082 } | |
| 1083 } else { | |
| 1084 video->UpdateRects(this, numrects, rects); | |
| 1085 } | |
| 1086 } | |
| 1087 } | |
| 1088 | |
| 1089 /* | |
| 1090 * Performs hardware double buffering, if possible, or a full update if not. | |
| 1091 */ | |
| 1092 int SDL_Flip(SDL_Surface *screen) | |
| 1093 { | |
| 1094 SDL_VideoDevice *video = current_video; | |
| 1095 /* Copy the shadow surface to the video surface */ | |
| 1096 if ( screen == SDL_ShadowSurface ) { | |
| 1097 SDL_Rect rect; | |
|
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1098 SDL_Palette *pal = screen->format->palette; |
| 0 | 1099 SDL_Color *saved_colors = NULL; |
|
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1100 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1101 /* simulated 8bpp, use correct physical palette */ |
| 1102 saved_colors = pal->colors; | |
| 1103 if ( video->gammacols ) { | |
| 1104 /* gamma-corrected palette */ | |
| 1105 pal->colors = video->gammacols; | |
| 1106 } else if ( video->physpal ) { | |
| 1107 /* physical palette different from logical */ | |
| 1108 pal->colors = video->physpal->colors; | |
| 1109 } | |
| 1110 } | |
| 1111 | |
| 1112 rect.x = 0; | |
| 1113 rect.y = 0; | |
| 1114 rect.w = screen->w; | |
| 1115 rect.h = screen->h; | |
|
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1116 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { |
|
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1117 SDL_LockCursor(); |
|
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1118 SDL_DrawCursor(SDL_ShadowSurface); |
|
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1119 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1120 SDL_VideoSurface, &rect); |
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1121 SDL_EraseCursor(SDL_ShadowSurface); |
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1122 SDL_UnlockCursor(); |
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1123 } else { |
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1124 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1125 SDL_VideoSurface, &rect); |
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1126 } |
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1127 if ( saved_colors ) { |
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1128 pal->colors = saved_colors; |
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1129 } |
| 0 | 1130 |
|
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1131 /* Fall through to video surface update */ |
| 0 | 1132 screen = SDL_VideoSurface; |
| 1133 } | |
| 1134 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 1135 SDL_VideoDevice *this = current_video; | |
| 1136 return(video->FlipHWSurface(this, SDL_VideoSurface)); | |
| 1137 } else { | |
| 1138 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1139 } | |
| 1140 return(0); | |
| 1141 } | |
| 1142 | |
| 1143 static void SetPalette_logical(SDL_Surface *screen, SDL_Color *colors, | |
| 1144 int firstcolor, int ncolors) | |
| 1145 { | |
|
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1146 SDL_Palette *pal = screen->format->palette; |
| 0 | 1147 SDL_Palette *vidpal; |
| 1148 | |
| 1149 if ( colors != (pal->colors + firstcolor) ) { | |
|
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|
1150 SDL_memcpy(pal->colors + firstcolor, colors, |
| 0 | 1151 ncolors * sizeof(*colors)); |
| 1152 } | |
| 1153 | |
| 3995 | 1154 if ( current_video && SDL_VideoSurface ) { |
| 1155 vidpal = SDL_VideoSurface->format->palette; | |
| 1156 if ( (screen == SDL_ShadowSurface) && vidpal ) { | |
| 1157 /* | |
| 1158 * This is a shadow surface, and the physical | |
| 1159 * framebuffer is also indexed. Propagate the | |
| 1160 * changes to its logical palette so that | |
| 1161 * updates are always identity blits | |
| 1162 */ | |
| 1163 SDL_memcpy(vidpal->colors + firstcolor, colors, | |
| 1164 ncolors * sizeof(*colors)); | |
| 1165 } | |
| 0 | 1166 } |
| 1167 SDL_FormatChanged(screen); | |
| 1168 } | |
| 1169 | |
| 1170 static int SetPalette_physical(SDL_Surface *screen, | |
| 1171 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1172 { | |
| 1173 SDL_VideoDevice *video = current_video; | |
| 1174 int gotall = 1; | |
| 1175 | |
| 1176 if ( video->physpal ) { | |
| 1177 /* We need to copy the new colors, since we haven't | |
| 1178 * already done the copy in the logical set above. | |
| 1179 */ | |
|
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|
1180 SDL_memcpy(video->physpal->colors + firstcolor, |
| 0 | 1181 colors, ncolors * sizeof(*colors)); |
| 1182 } | |
| 1183 if ( screen == SDL_ShadowSurface ) { | |
| 1184 if ( SDL_VideoSurface->flags & SDL_HWPALETTE ) { | |
| 1185 /* | |
| 1186 * The real screen is also indexed - set its physical | |
| 1187 * palette. The physical palette does not include the | |
| 1188 * gamma modification, we apply it directly instead, | |
| 1189 * but this only happens if we have hardware palette. | |
| 1190 */ | |
| 1191 screen = SDL_VideoSurface; | |
| 1192 } else { | |
| 1193 /* | |
| 1194 * The video surface is not indexed - invalidate any | |
| 1195 * active shadow-to-video blit mappings. | |
| 1196 */ | |
| 1197 if ( screen->map->dst == SDL_VideoSurface ) { | |
| 1198 SDL_InvalidateMap(screen->map); | |
| 1199 } | |
| 1200 if ( video->gamma ) { | |
| 1201 if( ! video->gammacols ) { | |
| 1202 SDL_Palette *pp = video->physpal; | |
| 1203 if(!pp) | |
| 1204 pp = screen->format->palette; | |
|
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1205 video->gammacols = SDL_malloc(pp->ncolors |
| 0 | 1206 * sizeof(SDL_Color)); |
| 1207 SDL_ApplyGamma(video->gamma, | |
| 1208 pp->colors, | |
| 1209 video->gammacols, | |
| 1210 pp->ncolors); | |
| 1211 } else { | |
| 1212 SDL_ApplyGamma(video->gamma, colors, | |
| 1213 video->gammacols | |
| 1214 + firstcolor, | |
| 1215 ncolors); | |
| 1216 } | |
| 1217 } | |
| 1218 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1219 } | |
| 1220 } | |
| 1221 | |
| 1222 if ( screen == SDL_VideoSurface ) { | |
| 1223 SDL_Color gcolors[256]; | |
| 1224 | |
|
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1225 if ( video->gamma ) { |
|
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|
1226 SDL_ApplyGamma(video->gamma, colors, gcolors, ncolors); |
| 0 | 1227 colors = gcolors; |
| 1228 } | |
| 1229 gotall = video->SetColors(video, firstcolor, ncolors, colors); | |
| 1230 if ( ! gotall ) { | |
| 1231 /* The video flags shouldn't have SDL_HWPALETTE, and | |
| 1232 the video driver is responsible for copying back the | |
| 1233 correct colors into the video surface palette. | |
| 1234 */ | |
| 1235 ; | |
| 1236 } | |
| 1237 SDL_CursorPaletteChanged(); | |
| 1238 } | |
| 1239 return gotall; | |
| 1240 } | |
| 1241 | |
| 1242 /* | |
| 1243 * Set the physical and/or logical colormap of a surface: | |
| 1244 * Only the screen has a physical colormap. It determines what is actually | |
| 1245 * sent to the display. | |
| 1246 * The logical colormap is used to map blits to/from the surface. | |
| 1247 * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL | |
| 1248 * | |
| 1249 * Return nonzero if all colours were set as requested, or 0 otherwise. | |
| 1250 */ | |
| 1251 int SDL_SetPalette(SDL_Surface *screen, int which, | |
| 1252 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1253 { | |
|
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|
1254 SDL_Palette *pal; |
| 0 | 1255 int gotall; |
| 1256 int palsize; | |
| 1257 | |
| 3995 | 1258 if ( !screen ) { |
| 34 | 1259 return 0; |
| 1260 } | |
| 3995 | 1261 if ( !current_video || screen != SDL_PublicSurface ) { |
|
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|
1262 /* only screens have physical palettes */ |
|
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|
1263 which &= ~SDL_PHYSPAL; |
| 3995 | 1264 } else if ( (screen->flags & SDL_HWPALETTE) != SDL_HWPALETTE ) { |
|
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|
1265 /* hardware palettes required for split colormaps */ |
|
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|
1266 which |= SDL_PHYSPAL | SDL_LOGPAL; |
| 0 | 1267 } |
| 1268 | |
| 1269 /* Verify the parameters */ | |
| 1270 pal = screen->format->palette; | |
| 1271 if( !pal ) { | |
|
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|
1272 return 0; /* not a palettized surface */ |
| 0 | 1273 } |
| 1274 gotall = 1; | |
| 1275 palsize = 1 << screen->format->BitsPerPixel; | |
| 1276 if ( ncolors > (palsize - firstcolor) ) { | |
|
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|
1277 ncolors = (palsize - firstcolor); |
| 0 | 1278 gotall = 0; |
| 1279 } | |
| 1280 | |
| 1281 if ( which & SDL_LOGPAL ) { | |
| 1282 /* | |
| 1283 * Logical palette change: The actual screen isn't affected, | |
| 1284 * but the internal colormap is altered so that the | |
| 1285 * interpretation of the pixel values (for blits etc) is | |
| 1286 * changed. | |
| 1287 */ | |
|
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diff
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|
1288 SetPalette_logical(screen, colors, firstcolor, ncolors); |
| 0 | 1289 } |
| 1290 if ( which & SDL_PHYSPAL ) { | |
| 1291 SDL_VideoDevice *video = current_video; | |
|
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|
1292 /* |
| 0 | 1293 * Physical palette change: This doesn't affect the |
| 1294 * program's idea of what the screen looks like, but changes | |
| 1295 * its actual appearance. | |
| 1296 */ | |
| 3995 | 1297 if ( !video->physpal && !(which & SDL_LOGPAL) ) { |
| 0 | 1298 /* Lazy physical palette allocation */ |
|
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|
1299 int size; |
|
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|
1300 SDL_Palette *pp = SDL_malloc(sizeof(*pp)); |
|
944
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|
1301 if ( !pp ) { |
|
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|
1302 return 0; |
|
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diff
changeset
|
1303 } |
| 3995 | 1304 video->physpal = pp; |
| 0 | 1305 pp->ncolors = pal->ncolors; |
| 1306 size = pp->ncolors * sizeof(SDL_Color); | |
|
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|
1307 pp->colors = SDL_malloc(size); |
|
944
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Date: Wed, 28 Jul 2004 14:56:57 +0800
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|
1308 if ( !pp->colors ) { |
|
cdea7cbc3e23
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1309 return 0; |
|
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|
1310 } |
|
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|
1311 SDL_memcpy(pp->colors, pal->colors, size); |
| 0 | 1312 } |
| 1313 if ( ! SetPalette_physical(screen, | |
| 1314 colors, firstcolor, ncolors) ) { | |
| 1315 gotall = 0; | |
| 1316 } | |
| 1317 } | |
| 1318 return gotall; | |
| 1319 } | |
| 1320 | |
| 1321 int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor, | |
| 1322 int ncolors) | |
| 1323 { | |
|
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|
1324 return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, |
| 0 | 1325 colors, firstcolor, ncolors); |
| 1326 } | |
| 1327 | |
| 1328 /* | |
| 1329 * Clean up the video subsystem | |
| 1330 */ | |
| 1331 void SDL_VideoQuit (void) | |
| 1332 { | |
| 1333 SDL_Surface *ready_to_go; | |
| 1334 | |
| 1335 if ( current_video ) { | |
| 1336 SDL_VideoDevice *video = current_video; | |
| 1337 SDL_VideoDevice *this = current_video; | |
| 1338 | |
| 1339 /* Halt event processing before doing anything else */ | |
| 1340 SDL_StopEventLoop(); | |
| 1341 | |
| 1342 /* Clean up allocated window manager items */ | |
| 1343 if ( SDL_PublicSurface ) { | |
| 1344 SDL_PublicSurface = NULL; | |
| 1345 } | |
| 1346 SDL_CursorQuit(); | |
| 1347 | |
| 1348 /* Just in case... */ | |
| 1349 SDL_WM_GrabInputOff(); | |
| 1350 | |
| 1351 /* Clean up the system video */ | |
| 1352 video->VideoQuit(this); | |
| 1353 | |
| 1354 /* Free any lingering surfaces */ | |
| 1355 ready_to_go = SDL_ShadowSurface; | |
| 1356 SDL_ShadowSurface = NULL; | |
| 1357 SDL_FreeSurface(ready_to_go); | |
| 1358 if ( SDL_VideoSurface != NULL ) { | |
| 1359 ready_to_go = SDL_VideoSurface; | |
| 1360 SDL_VideoSurface = NULL; | |
| 1361 SDL_FreeSurface(ready_to_go); | |
| 1362 } | |
| 1363 SDL_PublicSurface = NULL; | |
| 1364 | |
| 1365 /* Clean up miscellaneous memory */ | |
| 1366 if ( video->physpal ) { | |
|
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|
1367 SDL_free(video->physpal->colors); |
|
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|
1368 SDL_free(video->physpal); |
| 0 | 1369 video->physpal = NULL; |
| 1370 } | |
| 1371 if ( video->gammacols ) { | |
|
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|
1372 SDL_free(video->gammacols); |
| 0 | 1373 video->gammacols = NULL; |
| 1374 } | |
| 1375 if ( video->gamma ) { | |
|
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|
1376 SDL_free(video->gamma); |
| 0 | 1377 video->gamma = NULL; |
| 1378 } | |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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|
1379 if ( video->wm_title != NULL ) { |
|
1336
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|
1380 SDL_free(video->wm_title); |
|
58
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* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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|
1381 video->wm_title = NULL; |
| 0 | 1382 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
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|
1383 if ( video->wm_icon != NULL ) { |
|
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|
1384 SDL_free(video->wm_icon); |
|
58
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* Removed fullscreen menu option from the "Window" menu
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|
1385 video->wm_icon = NULL; |
| 0 | 1386 } |
| 1387 | |
| 1388 /* Finish cleaning up video subsystem */ | |
| 1389 video->free(this); | |
| 1390 current_video = NULL; | |
| 1391 } | |
| 1392 return; | |
| 1393 } | |
| 1394 | |
| 1395 /* Load the GL driver library */ | |
| 1396 int SDL_GL_LoadLibrary(const char *path) | |
| 1397 { | |
| 1398 SDL_VideoDevice *video = current_video; | |
| 1399 SDL_VideoDevice *this = current_video; | |
| 1400 int retval; | |
| 1401 | |
| 1402 retval = -1; | |
|
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1403 if ( video == NULL ) { |
|
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|
1404 SDL_SetError("Video subsystem has not been initialized"); |
| 0 | 1405 } else { |
|
423
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More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1406 if ( video->GL_LoadLibrary ) { |
|
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|
1407 retval = video->GL_LoadLibrary(this, path); |
|
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|
1408 } else { |
|
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|
1409 SDL_SetError("No dynamic GL support in video driver"); |
|
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|
1410 } |
| 0 | 1411 } |
| 1412 return(retval); | |
| 1413 } | |
| 1414 | |
| 1415 void *SDL_GL_GetProcAddress(const char* proc) | |
| 1416 { | |
| 1417 SDL_VideoDevice *video = current_video; | |
| 1418 SDL_VideoDevice *this = current_video; | |
| 1419 void *func; | |
| 1420 | |
| 1421 func = NULL; | |
| 1422 if ( video->GL_GetProcAddress ) { | |
| 1423 if ( video->gl_config.driver_loaded ) { | |
| 1424 func = video->GL_GetProcAddress(this, proc); | |
| 1425 } else { | |
| 1426 SDL_SetError("No GL driver has been loaded"); | |
| 1427 } | |
| 1428 } else { | |
| 1429 SDL_SetError("No dynamic GL support in video driver"); | |
| 1430 } | |
| 1431 return func; | |
| 1432 } | |
| 1433 | |
| 1434 /* Set the specified GL attribute for setting up a GL video mode */ | |
| 1435 int SDL_GL_SetAttribute( SDL_GLattr attr, int value ) | |
| 1436 { | |
| 1437 int retval; | |
| 1438 SDL_VideoDevice *video = current_video; | |
| 1439 | |
| 1440 retval = 0; | |
| 1441 switch (attr) { | |
| 1442 case SDL_GL_RED_SIZE: | |
| 1443 video->gl_config.red_size = value; | |
| 1444 break; | |
| 1445 case SDL_GL_GREEN_SIZE: | |
| 1446 video->gl_config.green_size = value; | |
| 1447 break; | |
| 1448 case SDL_GL_BLUE_SIZE: | |
| 1449 video->gl_config.blue_size = value; | |
| 1450 break; | |
| 1451 case SDL_GL_ALPHA_SIZE: | |
| 1452 video->gl_config.alpha_size = value; | |
| 1453 break; | |
| 1454 case SDL_GL_DOUBLEBUFFER: | |
| 1455 video->gl_config.double_buffer = value; | |
| 1456 break; | |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1457 case SDL_GL_BUFFER_SIZE: |
|
66c02f83f5bf
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|
1458 video->gl_config.buffer_size = value; |
| 0 | 1459 break; |
| 1460 case SDL_GL_DEPTH_SIZE: | |
| 1461 video->gl_config.depth_size = value; | |
| 1462 break; | |
| 1463 case SDL_GL_STENCIL_SIZE: | |
| 1464 video->gl_config.stencil_size = value; | |
| 1465 break; | |
|
450
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|
1466 case SDL_GL_ACCUM_RED_SIZE: |
| 0 | 1467 video->gl_config.accum_red_size = value; |
| 1468 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1469 case SDL_GL_ACCUM_GREEN_SIZE: |
| 0 | 1470 video->gl_config.accum_green_size = value; |
| 1471 break; | |
|
450
8a43e0cbf02f
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|
1472 case SDL_GL_ACCUM_BLUE_SIZE: |
| 0 | 1473 video->gl_config.accum_blue_size = value; |
| 1474 break; | |
|
450
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Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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|
1475 case SDL_GL_ACCUM_ALPHA_SIZE: |
| 0 | 1476 video->gl_config.accum_alpha_size = value; |
| 1477 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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changeset
|
1478 case SDL_GL_STEREO: |
|
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|
1479 video->gl_config.stereo = value; |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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|
1480 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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changeset
|
1481 case SDL_GL_MULTISAMPLEBUFFERS: |
|
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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|
1482 video->gl_config.multisamplebuffers = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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diff
changeset
|
1483 break; |
|
656
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Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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|
1484 case SDL_GL_MULTISAMPLESAMPLES: |
|
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|
1485 video->gl_config.multisamplesamples = value; |
|
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1486 break; |
| 1737 | 1487 case SDL_GL_ACCELERATED_VISUAL: |
| 1488 video->gl_config.accelerated = value; | |
| 1489 break; | |
|
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1490 case SDL_GL_SWAP_CONTROL: |
|
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|
1491 video->gl_config.swap_control = value; |
|
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|
1492 break; |
| 0 | 1493 default: |
| 1494 SDL_SetError("Unknown OpenGL attribute"); | |
| 1495 retval = -1; | |
| 1496 break; | |
| 1497 } | |
| 1498 return(retval); | |
| 1499 } | |
| 1500 | |
| 1501 /* Retrieve an attribute value from the windowing system. */ | |
| 1502 int SDL_GL_GetAttribute(SDL_GLattr attr, int* value) | |
| 1503 { | |
| 1504 int retval = -1; | |
| 1505 SDL_VideoDevice* video = current_video; | |
| 1506 SDL_VideoDevice* this = current_video; | |
| 1507 | |
| 1508 if ( video->GL_GetAttribute ) { | |
| 1509 retval = this->GL_GetAttribute(this, attr, value); | |
|
11
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*** empty log message ***
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1510 } else { |
|
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|
1511 *value = 0; |
|
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|
1512 SDL_SetError("GL_GetAttribute not supported"); |
| 0 | 1513 } |
| 1514 return retval; | |
| 1515 } | |
| 1516 | |
| 1517 /* Perform a GL buffer swap on the current GL context */ | |
| 1518 void SDL_GL_SwapBuffers(void) | |
| 1519 { | |
| 1520 SDL_VideoDevice *video = current_video; | |
| 1521 SDL_VideoDevice *this = current_video; | |
| 1522 | |
| 1523 if ( video->screen->flags & SDL_OPENGL ) { | |
|
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|
1524 video->GL_SwapBuffers(this); |
|
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1525 } else { |
|
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1526 SDL_SetError("OpenGL video mode has not been set"); |
| 0 | 1527 } |
| 1528 } | |
| 1529 | |
| 1530 /* Update rects with locking */ | |
| 1531 void SDL_GL_UpdateRectsLock(SDL_VideoDevice* this, int numrects, SDL_Rect *rects) | |
| 1532 { | |
| 1533 SDL_GL_Lock(); | |
| 1534 SDL_GL_UpdateRects(numrects, rects); | |
| 1535 SDL_GL_Unlock(); | |
| 1536 } | |
| 1537 | |
| 1538 /* Update rects without state setting and changing (the caller is responsible for it) */ | |
| 1539 void SDL_GL_UpdateRects(int numrects, SDL_Rect *rects) | |
| 1540 { | |
|
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|
1541 #if SDL_VIDEO_OPENGL |
| 0 | 1542 SDL_VideoDevice *this = current_video; |
| 1543 SDL_Rect update, tmp; | |
| 1544 int x, y, i; | |
| 1545 | |
| 1546 for ( i = 0; i < numrects; i++ ) | |
| 1547 { | |
| 1548 tmp.y = rects[i].y; | |
| 1549 tmp.h = rects[i].h; | |
| 1550 for ( y = 0; y <= rects[i].h / 256; y++ ) | |
| 1551 { | |
| 1552 tmp.x = rects[i].x; | |
| 1553 tmp.w = rects[i].w; | |
| 1554 for ( x = 0; x <= rects[i].w / 256; x++ ) | |
| 1555 { | |
| 1556 update.x = tmp.x; | |
| 1557 update.y = tmp.y; | |
| 1558 update.w = tmp.w; | |
| 1559 update.h = tmp.h; | |
| 1560 | |
| 1561 if ( update.w > 256 ) | |
| 1562 update.w = 256; | |
| 1563 | |
| 1564 if ( update.h > 256 ) | |
| 1565 update.h = 256; | |
| 1566 | |
| 1567 this->glFlush(); | |
| 1568 this->glTexSubImage2D( | |
| 1569 GL_TEXTURE_2D, | |
| 1570 0, | |
| 1571 0, | |
| 1572 0, | |
| 1573 update.w, | |
| 1574 update.h, | |
| 1575 this->is_32bit? GL_RGBA : GL_RGB, | |
| 1576 #ifdef GL_VERSION_1_2 | |
| 1577 this->is_32bit ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT_5_6_5, | |
| 1578 #else | |
| 1579 GL_UNSIGNED_BYTE, | |
| 1580 #endif | |
| 1581 (Uint8 *)this->screen->pixels + | |
| 1582 this->screen->format->BytesPerPixel * update.x + | |
| 1583 update.y * this->screen->pitch ); | |
| 1584 | |
| 1585 this->glFlush(); | |
| 1586 /* | |
| 1587 * Note the parens around the function name: | |
| 1588 * This is because some OpenGL implementations define glTexCoord etc | |
| 1589 * as macros, and we don't want them expanded here. | |
| 1590 */ | |
| 1591 this->glBegin(GL_TRIANGLE_STRIP); | |
| 1592 (this->glTexCoord2f)( 0.0, 0.0 ); | |
| 1593 (this->glVertex2i)( update.x, update.y ); | |
| 1594 (this->glTexCoord2f)( (float)(update.w / 256.0), 0.0 ); | |
| 1595 (this->glVertex2i)( update.x + update.w, update.y ); | |
| 1596 (this->glTexCoord2f)( 0.0, (float)(update.h / 256.0) ); | |
| 1597 (this->glVertex2i)( update.x, update.y + update.h ); | |
| 1598 (this->glTexCoord2f)( (float)(update.w / 256.0), (float)(update.h / 256.0) ); | |
| 1599 (this->glVertex2i)( update.x + update.w , update.y + update.h ); | |
| 1600 this->glEnd(); | |
| 1601 | |
| 1602 tmp.x += 256; | |
| 1603 tmp.w -= 256; | |
| 1604 } | |
| 1605 tmp.y += 256; | |
| 1606 tmp.h -= 256; | |
| 1607 } | |
| 1608 } | |
| 1609 #endif | |
| 1610 } | |
| 1611 | |
| 1612 /* Lock == save current state */ | |
| 1613 void SDL_GL_Lock() | |
| 1614 { | |
|
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|
1615 #if SDL_VIDEO_OPENGL |
| 0 | 1616 lock_count--; |
| 1617 if (lock_count==-1) | |
| 1618 { | |
| 1619 SDL_VideoDevice *this = current_video; | |
| 1620 | |
| 1621 this->glPushAttrib( GL_ALL_ATTRIB_BITS ); /* TODO: narrow range of what is saved */ | |
|
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Fix build when GL_CLIENT_PIXEL_STORE_BIT is not defined
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|
1622 #ifdef GL_CLIENT_PIXEL_STORE_BIT |
| 0 | 1623 this->glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT ); |
|
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|
1624 #endif |
| 0 | 1625 |
| 1626 this->glEnable(GL_TEXTURE_2D); | |
| 1627 this->glEnable(GL_BLEND); | |
| 1628 this->glDisable(GL_FOG); | |
| 1629 this->glDisable(GL_ALPHA_TEST); | |
| 1630 this->glDisable(GL_DEPTH_TEST); | |
| 1631 this->glDisable(GL_SCISSOR_TEST); | |
| 1632 this->glDisable(GL_STENCIL_TEST); | |
| 1633 this->glDisable(GL_CULL_FACE); | |
| 1634 | |
| 1635 this->glBindTexture( GL_TEXTURE_2D, this->texture ); | |
| 1636 this->glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); | |
| 1637 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); | |
| 1638 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); | |
| 1639 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); | |
| 1640 this->glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT ); | |
| 1641 | |
| 1642 this->glPixelStorei( GL_UNPACK_ROW_LENGTH, this->screen->pitch / this->screen->format->BytesPerPixel ); | |
| 1643 this->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
| 1644 (this->glColor4f)(1.0, 1.0, 1.0, 1.0); /* Solaris workaround */ | |
| 1645 | |
| 1646 this->glViewport(0, 0, this->screen->w, this->screen->h); | |
| 1647 this->glMatrixMode(GL_PROJECTION); | |
| 1648 this->glPushMatrix(); | |
| 1649 this->glLoadIdentity(); | |
| 1650 | |
| 1651 this->glOrtho(0.0, (GLdouble) this->screen->w, (GLdouble) this->screen->h, 0.0, 0.0, 1.0); | |
| 1652 | |
| 1653 this->glMatrixMode(GL_MODELVIEW); | |
| 1654 this->glPushMatrix(); | |
| 1655 this->glLoadIdentity(); | |
| 1656 } | |
| 1657 #endif | |
| 1658 } | |
| 1659 | |
| 1660 /* Unlock == restore saved state */ | |
| 1661 void SDL_GL_Unlock() | |
| 1662 { | |
|
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|
1663 #if SDL_VIDEO_OPENGL |
| 0 | 1664 lock_count++; |
| 1665 if (lock_count==0) | |
| 1666 { | |
| 1667 SDL_VideoDevice *this = current_video; | |
| 1668 | |
| 1669 this->glPopMatrix(); | |
| 1670 this->glMatrixMode(GL_PROJECTION); | |
| 1671 this->glPopMatrix(); | |
| 1672 | |
| 1673 this->glPopClientAttrib(); | |
| 1674 this->glPopAttrib(); | |
| 1675 } | |
| 1676 #endif | |
| 1677 } | |
| 1678 | |
|
4399
ae9c094e9200
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|
1679 |
|
ae9c094e9200
Patched to compile on Visual C++.
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|
1680 void SDL_Audio_SetCaption(const char *caption); |
|
ae9c094e9200
Patched to compile on Visual C++.
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diff
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|
1681 |
| 0 | 1682 /* |
| 1683 * Sets/Gets the title and icon text of the display window, if any. | |
| 1684 */ | |
| 1685 void SDL_WM_SetCaption (const char *title, const char *icon) | |
| 1686 { | |
| 1687 SDL_VideoDevice *video = current_video; | |
| 1688 SDL_VideoDevice *this = current_video; | |
| 1689 | |
|
58
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|
1690 if ( video ) { |
|
bd6b0a910a65
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|
1691 if ( title ) { |
|
bd6b0a910a65
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diff
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|
1692 if ( video->wm_title ) { |
|
1336
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|
1693 SDL_free(video->wm_title); |
|
58
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Sam Lantinga <slouken@lokigames.com>
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diff
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|
1694 } |
|
1379
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Use only safe string functions
Sam Lantinga <slouken@libsdl.org>
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|
1695 video->wm_title = SDL_strdup(title); |
| 0 | 1696 } |
|
58
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|
1697 if ( icon ) { |
|
bd6b0a910a65
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|
1698 if ( video->wm_icon ) { |
|
1336
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diff
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|
1699 SDL_free(video->wm_icon); |
|
58
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|
1700 } |
|
1379
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|
1701 video->wm_icon = SDL_strdup(icon); |
| 0 | 1702 } |
|
58
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|
1703 if ( (title || icon) && (video->SetCaption != NULL) ) { |
|
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|
1704 video->SetCaption(this, video->wm_title,video->wm_icon); |
| 0 | 1705 } |
| 1706 } | |
|
4398
fe15c4e8efe6
1.2: let PulseAudio hook into SDL_WM_SetCaption().
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|
1707 |
|
fe15c4e8efe6
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|
1708 /* PulseAudio can make use of this information. */ |
|
fe15c4e8efe6
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|
1709 SDL_Audio_SetCaption(title); |
| 0 | 1710 } |
|
4398
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|
1711 |
| 0 | 1712 void SDL_WM_GetCaption (char **title, char **icon) |
| 1713 { | |
|
58
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|
1714 SDL_VideoDevice *video = current_video; |
|
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|
1715 |
|
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|
1716 if ( video ) { |
|
bd6b0a910a65
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|
1717 if ( title ) { |
|
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|
1718 *title = video->wm_title; |
|
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|
1719 } |
|
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|
1720 if ( icon ) { |
|
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|
1721 *icon = video->wm_icon; |
|
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|
1722 } |
| 0 | 1723 } |
| 1724 } | |
| 1725 | |
|
541
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|
1726 /* Utility function used by SDL_WM_SetIcon(); |
|
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|
1727 * flags & 1 for color key, flags & 2 for alpha channel. */ |
|
796f2fe699be
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|
1728 static void CreateMaskFromColorKeyOrAlpha(SDL_Surface *icon, Uint8 *mask, int flags) |
| 0 | 1729 { |
| 1730 int x, y; | |
| 1731 Uint32 colorkey; | |
| 1732 #define SET_MASKBIT(icon, x, y, mask) \ | |
| 1733 mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8))) | |
| 1734 | |
| 1735 colorkey = icon->format->colorkey; | |
| 1736 switch (icon->format->BytesPerPixel) { | |
| 1737 case 1: { Uint8 *pixels; | |
| 1738 for ( y=0; y<icon->h; ++y ) { | |
| 1739 pixels = (Uint8 *)icon->pixels + y*icon->pitch; | |
| 1740 for ( x=0; x<icon->w; ++x ) { | |
| 1741 if ( *pixels++ == colorkey ) { | |
| 1742 SET_MASKBIT(icon, x, y, mask); | |
| 1743 } | |
| 1744 } | |
| 1745 } | |
| 1746 } | |
| 1747 break; | |
| 1748 | |
| 1749 case 2: { Uint16 *pixels; | |
| 1750 for ( y=0; y<icon->h; ++y ) { | |
| 1751 pixels = (Uint16 *)icon->pixels + | |
| 1752 y*icon->pitch/2; | |
| 1753 for ( x=0; x<icon->w; ++x ) { | |
|
541
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|
1754 if ( (flags & 1) && *pixels == colorkey ) { |
|
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|
1755 SET_MASKBIT(icon, x, y, mask); |
|
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|
1756 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1757 SET_MASKBIT(icon, x, y, mask); |
| 1758 } | |
|
541
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|
1759 pixels++; |
| 0 | 1760 } |
| 1761 } | |
| 1762 } | |
| 1763 break; | |
| 1764 | |
| 1765 case 4: { Uint32 *pixels; | |
| 1766 for ( y=0; y<icon->h; ++y ) { | |
| 1767 pixels = (Uint32 *)icon->pixels + | |
| 1768 y*icon->pitch/4; | |
| 1769 for ( x=0; x<icon->w; ++x ) { | |
|
541
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|
1770 if ( (flags & 1) && *pixels == colorkey ) { |
|
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|
1771 SET_MASKBIT(icon, x, y, mask); |
|
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|
1772 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1773 SET_MASKBIT(icon, x, y, mask); |
| 1774 } | |
|
541
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|
1775 pixels++; |
| 0 | 1776 } |
| 1777 } | |
| 1778 } | |
| 1779 break; | |
| 1780 } | |
| 1781 } | |
| 1782 | |
| 1783 /* | |
| 1784 * Sets the window manager icon for the display window. | |
| 1785 */ | |
| 1786 void SDL_WM_SetIcon (SDL_Surface *icon, Uint8 *mask) | |
| 1787 { | |
| 1788 SDL_VideoDevice *video = current_video; | |
| 1789 SDL_VideoDevice *this = current_video; | |
| 1790 | |
| 1791 if ( icon && video->SetIcon ) { | |
| 1792 /* Generate a mask if necessary, and create the icon! */ | |
| 1793 if ( mask == NULL ) { | |
| 1794 int mask_len = icon->h*(icon->w+7)/8; | |
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1795 int flags = 0; |
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1796 mask = (Uint8 *)SDL_malloc(mask_len); |
| 0 | 1797 if ( mask == NULL ) { |
| 1798 return; | |
| 1799 } | |
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1800 SDL_memset(mask, ~0, mask_len); |
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1801 if ( icon->flags & SDL_SRCCOLORKEY ) flags |= 1; |
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1802 if ( icon->flags & SDL_SRCALPHA ) flags |= 2; |
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1803 if( flags ) { |
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1804 CreateMaskFromColorKeyOrAlpha(icon, mask, flags); |
| 0 | 1805 } |
| 1806 video->SetIcon(video, icon, mask); | |
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1807 SDL_free(mask); |
| 0 | 1808 } else { |
| 1809 video->SetIcon(this, icon, mask); | |
| 1810 } | |
| 1811 } | |
| 1812 } | |
| 1813 | |
| 1814 /* | |
| 1815 * Grab or ungrab the keyboard and mouse input. | |
| 1816 * This function returns the final grab mode after calling the | |
| 1817 * driver dependent function. | |
| 1818 */ | |
| 1819 static SDL_GrabMode SDL_WM_GrabInputRaw(SDL_GrabMode mode) | |
| 1820 { | |
| 1821 SDL_VideoDevice *video = current_video; | |
| 1822 SDL_VideoDevice *this = current_video; | |
| 1823 | |
| 1824 /* Only do something if we have support for grabs */ | |
| 1825 if ( video->GrabInput == NULL ) { | |
| 1826 return(video->input_grab); | |
| 1827 } | |
| 1828 | |
| 1829 /* If the final grab mode if off, only then do we actually grab */ | |
| 1830 #ifdef DEBUG_GRAB | |
| 1831 printf("SDL_WM_GrabInputRaw(%d) ... ", mode); | |
| 1832 #endif | |
| 1833 if ( mode == SDL_GRAB_OFF ) { | |
| 1834 if ( video->input_grab != SDL_GRAB_OFF ) { | |
| 1835 mode = video->GrabInput(this, mode); | |
| 1836 } | |
| 1837 } else { | |
| 1838 if ( video->input_grab == SDL_GRAB_OFF ) { | |
| 1839 mode = video->GrabInput(this, mode); | |
| 1840 } | |
| 1841 } | |
| 1842 if ( mode != video->input_grab ) { | |
| 1843 video->input_grab = mode; | |
| 1844 if ( video->CheckMouseMode ) { | |
| 1845 video->CheckMouseMode(this); | |
| 1846 } | |
| 1847 } | |
| 1848 #ifdef DEBUG_GRAB | |
| 1849 printf("Final mode %d\n", video->input_grab); | |
| 1850 #endif | |
| 1851 | |
| 1852 /* Return the final grab state */ | |
| 1853 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1854 mode -= SDL_GRAB_FULLSCREEN; | |
| 1855 } | |
| 1856 return(mode); | |
| 1857 } | |
| 1858 SDL_GrabMode SDL_WM_GrabInput(SDL_GrabMode mode) | |
| 1859 { | |
| 1860 SDL_VideoDevice *video = current_video; | |
| 1861 | |
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1862 /* If the video isn't initialized yet, we can't do anything */ |
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1863 if ( ! video ) { |
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1864 return SDL_GRAB_OFF; |
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1865 } |
| 0 | 1866 |
| 1867 /* Return the current mode on query */ | |
| 1868 if ( mode == SDL_GRAB_QUERY ) { | |
| 1869 mode = video->input_grab; | |
| 1870 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1871 mode -= SDL_GRAB_FULLSCREEN; | |
| 1872 } | |
| 1873 return(mode); | |
| 1874 } | |
| 1875 | |
| 1876 #ifdef DEBUG_GRAB | |
| 1877 printf("SDL_WM_GrabInput(%d) ... ", mode); | |
| 1878 #endif | |
| 1879 /* If the video surface is fullscreen, we always grab */ | |
| 1880 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1881 mode -= SDL_GRAB_FULLSCREEN; | |
| 1882 } | |
| 1883 if ( SDL_VideoSurface && (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { | |
| 1884 mode += SDL_GRAB_FULLSCREEN; | |
| 1885 } | |
| 1886 return(SDL_WM_GrabInputRaw(mode)); | |
| 1887 } | |
| 1888 static SDL_GrabMode SDL_WM_GrabInputOff(void) | |
| 1889 { | |
| 1890 SDL_GrabMode mode; | |
| 1891 | |
| 1892 /* First query the current grab state */ | |
| 1893 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 1894 | |
| 1895 /* Now explicitly turn off input grab */ | |
| 1896 SDL_WM_GrabInputRaw(SDL_GRAB_OFF); | |
| 1897 | |
| 1898 /* Return the old state */ | |
| 1899 return(mode); | |
| 1900 } | |
| 1901 | |
| 1902 /* | |
| 1903 * Iconify the window in window managed environments. | |
| 1904 * A successful iconification will result in an SDL_APPACTIVE loss event. | |
| 1905 */ | |
| 1906 int SDL_WM_IconifyWindow(void) | |
| 1907 { | |
| 1908 SDL_VideoDevice *video = current_video; | |
| 1909 SDL_VideoDevice *this = current_video; | |
| 1910 int retval; | |
| 1911 | |
| 1912 retval = 0; | |
| 1913 if ( video->IconifyWindow ) { | |
| 1914 retval = video->IconifyWindow(this); | |
| 1915 } | |
| 1916 return(retval); | |
| 1917 } | |
| 1918 | |
| 1919 /* | |
| 1920 * Toggle fullscreen mode | |
| 1921 */ | |
| 1922 int SDL_WM_ToggleFullScreen(SDL_Surface *surface) | |
| 1923 { | |
| 1924 SDL_VideoDevice *video = current_video; | |
| 1925 SDL_VideoDevice *this = current_video; | |
| 1926 int toggled; | |
| 1927 | |
| 1928 toggled = 0; | |
| 1929 if ( SDL_PublicSurface && (surface == SDL_PublicSurface) && | |
| 1930 video->ToggleFullScreen ) { | |
| 1931 if ( surface->flags & SDL_FULLSCREEN ) { | |
| 1932 toggled = video->ToggleFullScreen(this, 0); | |
| 1933 if ( toggled ) { | |
| 1934 SDL_VideoSurface->flags &= ~SDL_FULLSCREEN; | |
| 1935 SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; | |
| 1936 } | |
| 1937 } else { | |
| 1938 toggled = video->ToggleFullScreen(this, 1); | |
| 1939 if ( toggled ) { | |
| 1940 SDL_VideoSurface->flags |= SDL_FULLSCREEN; | |
| 1941 SDL_PublicSurface->flags |= SDL_FULLSCREEN; | |
| 1942 } | |
| 1943 } | |
| 1944 /* Double-check the grab state inside SDL_WM_GrabInput() */ | |
| 1945 if ( toggled ) { | |
| 1946 SDL_WM_GrabInput(video->input_grab); | |
| 1947 } | |
| 1948 } | |
| 1949 return(toggled); | |
| 1950 } | |
| 1951 | |
| 1952 /* | |
| 1953 * Get some platform dependent window manager information | |
| 1954 */ | |
| 1955 int SDL_GetWMInfo (SDL_SysWMinfo *info) | |
| 1956 { | |
| 1957 SDL_VideoDevice *video = current_video; | |
| 1958 SDL_VideoDevice *this = current_video; | |
| 1959 | |
| 1960 if ( video && video->GetWMInfo ) { | |
| 1961 return(video->GetWMInfo(this, info)); | |
| 1962 } else { | |
| 1963 return(0); | |
| 1964 } | |
| 1965 } |