Mercurial > sdl-ios-xcode
annotate src/video/SDL_video.c @ 1660:8b9d79e7eacf SDL-1.3
Added API requested in bug #43:
Added SDL_GetNumVideoDrivers() and SDL_GetVideoDriver().
Replaced SDL_VideoDriverName() with SDL_GetCurrentVideoDriver()
Added SDL_GetNumAudioDrivers() and SDL_GetAudioDriver().
Replaced SDL_AudioDriverName() with SDL_GetCurrentAudioDriver()
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 20 May 2006 04:35:58 +0000 |
| parents | e49147870aac |
| children | 782fd950bd46 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 /* The high-level video driver subsystem */ | |
| 25 | |
| 26 #include "SDL.h" | |
| 27 #include "SDL_sysvideo.h" | |
| 28 #include "SDL_blit.h" | |
| 29 #include "SDL_pixels_c.h" | |
| 30 #include "SDL_cursor_c.h" | |
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31 #include "../events/SDL_sysevents.h" |
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32 #include "../events/SDL_events_c.h" |
| 0 | 33 |
| 34 /* Available video drivers */ | |
| 35 static VideoBootStrap *bootstrap[] = { | |
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36 #if SDL_VIDEO_DRIVER_QUARTZ |
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37 &QZ_bootstrap, |
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38 #endif |
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39 #if SDL_VIDEO_DRIVER_X11 |
| 0 | 40 &X11_bootstrap, |
| 41 #endif | |
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42 #if SDL_VIDEO_DRIVER_DGA |
| 0 | 43 &DGA_bootstrap, |
| 44 #endif | |
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45 #if SDL_VIDEO_DRIVER_NANOX |
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46 &NX_bootstrap, |
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47 #endif |
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48 #if SDL_VIDEO_DRIVER_IPOD |
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49 &iPod_bootstrap, |
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50 #endif |
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51 #if SDL_VIDEO_DRIVER_QTOPIA |
| 567 | 52 &Qtopia_bootstrap, |
| 53 #endif | |
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54 #if SDL_VIDEO_DRIVER_WSCONS |
| 1187 | 55 &WSCONS_bootstrap, |
| 56 #endif | |
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57 #if SDL_VIDEO_DRIVER_FBCON |
| 0 | 58 &FBCON_bootstrap, |
| 59 #endif | |
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60 #if SDL_VIDEO_DRIVER_DIRECTFB |
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61 &DirectFB_bootstrap, |
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62 #endif |
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63 #if SDL_VIDEO_DRIVER_PS2GS |
| 0 | 64 &PS2GS_bootstrap, |
| 65 #endif | |
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66 #if SDL_VIDEO_DRIVER_GGI |
| 0 | 67 &GGI_bootstrap, |
| 68 #endif | |
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69 #if SDL_VIDEO_DRIVER_VGL |
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70 &VGL_bootstrap, |
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71 #endif |
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72 #if SDL_VIDEO_DRIVER_SVGALIB |
| 0 | 73 &SVGALIB_bootstrap, |
| 74 #endif | |
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75 #if SDL_VIDEO_DRIVER_GAPI |
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76 &GAPI_bootstrap, |
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77 #endif |
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78 #if SDL_VIDEO_DRIVER_WINDIB |
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79 &WINDIB_bootstrap, |
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80 #endif |
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81 #if SDL_VIDEO_DRIVER_DDRAW |
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82 &DIRECTX_bootstrap, |
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83 #endif |
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84 #if SDL_VIDEO_DRIVER_BWINDOW |
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85 &BWINDOW_bootstrap, |
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86 #endif |
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87 #if SDL_VIDEO_DRIVER_TOOLBOX |
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88 &TOOLBOX_bootstrap, |
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89 #endif |
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90 #if SDL_VIDEO_DRIVER_DRAWSPROCKET |
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91 &DSp_bootstrap, |
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92 #endif |
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93 #if SDL_VIDEO_DRIVER_CYBERGRAPHICS |
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94 &CGX_bootstrap, |
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95 #endif |
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96 #if SDL_VIDEO_DRIVER_PHOTON |
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97 &ph_bootstrap, |
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98 #endif |
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99 #if SDL_VIDEO_DRIVER_EPOC |
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100 &EPOC_bootstrap, |
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101 #endif |
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102 #if SDL_VIDEO_DRIVER_XBIOS |
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103 &XBIOS_bootstrap, |
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104 #endif |
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105 #if SDL_VIDEO_DRIVER_GEM |
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106 &GEM_bootstrap, |
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107 #endif |
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108 #if SDL_VIDEO_DRIVER_PICOGUI |
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109 &PG_bootstrap, |
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110 #endif |
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111 #if SDL_VIDEO_DRIVER_DC |
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112 &DC_bootstrap, |
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113 #endif |
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114 #if SDL_VIDEO_DRIVER_RISCOS |
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115 &RISCOS_bootstrap, |
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116 #endif |
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117 #if SDL_VIDEO_DRIVER_OS2FS |
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118 &OS2FSLib_bootstrap, |
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119 #endif |
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120 #if SDL_VIDEO_DRIVER_AALIB |
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121 &AALIB_bootstrap, |
| 0 | 122 #endif |
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123 #if SDL_VIDEO_DRIVER_DUMMY |
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124 &DUMMY_bootstrap, |
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125 #endif |
| 1658 | 126 #if SDL_VIDEO_DRIVER_GLSDL |
| 127 &glSDL_bootstrap, | |
| 128 #endif | |
| 0 | 129 NULL |
| 130 }; | |
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131 |
| 0 | 132 SDL_VideoDevice *current_video = NULL; |
| 133 | |
| 134 /* Various local functions */ | |
| 135 int SDL_VideoInit(const char *driver_name, Uint32 flags); | |
| 136 void SDL_VideoQuit(void); | |
| 137 | |
| 138 static SDL_GrabMode SDL_WM_GrabInputOff(void); | |
| 139 | |
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140 int SDL_GetNumVideoDrivers(void) |
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141 { |
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142 return(SDL_arraysize(bootstrap)-1); |
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143 } |
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144 |
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145 const char *SDL_GetVideoDriver(int index) |
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146 { |
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147 if ( index >= 0 && index < SDL_GetNumVideoDrivers() ) { |
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148 return(bootstrap[index]->name); |
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149 } |
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150 return(NULL); |
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151 } |
| 0 | 152 |
| 153 /* | |
| 154 * Initialize the video and event subsystems -- determine native pixel format | |
| 155 */ | |
| 156 int SDL_VideoInit (const char *driver_name, Uint32 flags) | |
| 157 { | |
| 158 SDL_VideoDevice *video; | |
| 159 int index; | |
| 160 int i; | |
| 161 SDL_PixelFormat vformat; | |
| 162 Uint32 video_flags; | |
| 163 | |
| 164 /* Toggle the event thread flags, based on OS requirements */ | |
| 165 #if defined(MUST_THREAD_EVENTS) | |
| 166 flags |= SDL_INIT_EVENTTHREAD; | |
| 167 #elif defined(CANT_THREAD_EVENTS) | |
| 168 if ( (flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD ) { | |
| 169 SDL_SetError("OS doesn't support threaded events"); | |
| 170 return(-1); | |
| 171 } | |
| 172 #endif | |
| 173 | |
| 174 /* Check to make sure we don't overwrite 'current_video' */ | |
| 175 if ( current_video != NULL ) { | |
| 176 SDL_VideoQuit(); | |
| 177 } | |
| 178 | |
| 179 /* Select the proper video driver */ | |
| 180 index = 0; | |
| 181 video = NULL; | |
| 182 if ( driver_name != NULL ) { | |
| 183 #if 0 /* This will be replaced with a better driver selection API */ | |
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184 if ( SDL_strrchr(driver_name, ':') != NULL ) { |
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185 index = atoi(SDL_strrchr(driver_name, ':')+1); |
| 0 | 186 } |
| 187 #endif | |
| 188 for ( i=0; bootstrap[i]; ++i ) { | |
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189 if ( SDL_strncmp(bootstrap[i]->name, driver_name, |
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190 SDL_strlen(bootstrap[i]->name)) == 0 ) { |
| 0 | 191 if ( bootstrap[i]->available() ) { |
| 192 video = bootstrap[i]->create(index); | |
| 193 break; | |
| 194 } | |
| 195 } | |
| 196 } | |
| 197 } else { | |
| 198 for ( i=0; bootstrap[i]; ++i ) { | |
| 199 if ( bootstrap[i]->available() ) { | |
| 200 video = bootstrap[i]->create(index); | |
| 201 if ( video != NULL ) { | |
| 202 break; | |
| 203 } | |
| 204 } | |
| 205 } | |
| 206 } | |
| 207 if ( video == NULL ) { | |
| 208 SDL_SetError("No available video device"); | |
| 209 return(-1); | |
| 210 } | |
| 211 current_video = video; | |
| 212 current_video->name = bootstrap[i]->name; | |
| 213 | |
| 214 /* Do some basic variable initialization */ | |
| 215 video->screen = NULL; | |
| 216 video->shadow = NULL; | |
| 217 video->visible = NULL; | |
| 218 video->physpal = NULL; | |
| 219 video->gammacols = NULL; | |
| 220 video->gamma = NULL; | |
| 221 video->wm_title = NULL; | |
| 222 video->wm_icon = NULL; | |
| 223 video->offset_x = 0; | |
| 224 video->offset_y = 0; | |
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225 SDL_memset(&video->info, 0, (sizeof video->info)); |
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226 |
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227 video->displayformatalphapixel = NULL; |
| 0 | 228 |
| 229 /* Set some very sane GL defaults */ | |
| 230 video->gl_config.driver_loaded = 0; | |
| 231 video->gl_config.dll_handle = NULL; | |
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232 video->gl_config.red_size = 3; |
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233 video->gl_config.green_size = 3; |
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234 video->gl_config.blue_size = 2; |
| 0 | 235 video->gl_config.alpha_size = 0; |
| 236 video->gl_config.buffer_size = 0; | |
| 237 video->gl_config.depth_size = 16; | |
| 238 video->gl_config.stencil_size = 0; | |
| 239 video->gl_config.double_buffer = 1; | |
| 240 video->gl_config.accum_red_size = 0; | |
| 241 video->gl_config.accum_green_size = 0; | |
| 242 video->gl_config.accum_blue_size = 0; | |
| 243 video->gl_config.accum_alpha_size = 0; | |
|
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244 video->gl_config.stereo = 0; |
|
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245 video->gl_config.multisamplebuffers = 0; |
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246 video->gl_config.multisamplesamples = 0; |
| 1656 | 247 video->gl_config.accelerated = -1; /* not known, don't set */ |
| 248 video->gl_config.swap_control = -1; /* not known, don't set */ | |
| 0 | 249 |
| 250 /* Initialize the video subsystem */ | |
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251 SDL_memset(&vformat, 0, sizeof(vformat)); |
| 0 | 252 if ( video->VideoInit(video, &vformat) < 0 ) { |
| 253 SDL_VideoQuit(); | |
| 254 return(-1); | |
| 255 } | |
| 256 | |
| 257 /* Create a zero sized video surface of the appropriate format */ | |
| 258 video_flags = SDL_SWSURFACE; | |
| 259 SDL_VideoSurface = SDL_CreateRGBSurface(video_flags, 0, 0, | |
| 260 vformat.BitsPerPixel, | |
| 261 vformat.Rmask, vformat.Gmask, vformat.Bmask, 0); | |
| 262 if ( SDL_VideoSurface == NULL ) { | |
| 263 SDL_VideoQuit(); | |
| 264 return(-1); | |
| 265 } | |
| 266 SDL_PublicSurface = NULL; /* Until SDL_SetVideoMode() */ | |
| 267 | |
| 268 #if 0 /* Don't change the current palette - may be used by other programs. | |
| 269 * The application can't do anything with the display surface until | |
| 270 * a video mode has been set anyway. :) | |
| 271 */ | |
| 272 /* If we have a palettized surface, create a default palette */ | |
| 273 if ( SDL_VideoSurface->format->palette ) { | |
|
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274 SDL_PixelFormat *vf = SDL_VideoSurface->format; |
| 0 | 275 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 276 video->SetColors(video, | |
| 277 0, vf->palette->ncolors, vf->palette->colors); | |
| 278 } | |
| 279 #endif | |
| 280 video->info.vfmt = SDL_VideoSurface->format; | |
| 281 | |
| 282 /* Start the event loop */ | |
| 283 if ( SDL_StartEventLoop(flags) < 0 ) { | |
| 284 SDL_VideoQuit(); | |
| 285 return(-1); | |
| 286 } | |
| 287 SDL_CursorInit(flags & SDL_INIT_EVENTTHREAD); | |
| 288 | |
| 289 /* We're ready to go! */ | |
| 290 return(0); | |
| 291 } | |
| 292 | |
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293 const char *SDL_GetCurrentVideoDriver() |
| 0 | 294 { |
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295 if ( current_video ) { |
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296 return current_video->name; |
| 0 | 297 } |
| 298 return(NULL); | |
| 299 } | |
| 300 | |
| 301 /* | |
| 302 * Get the current display surface | |
| 303 */ | |
| 304 SDL_Surface *SDL_GetVideoSurface(void) | |
| 305 { | |
| 306 SDL_Surface *visible; | |
| 307 | |
| 308 visible = NULL; | |
| 309 if ( current_video ) { | |
| 310 visible = current_video->visible; | |
| 311 } | |
| 312 return(visible); | |
| 313 } | |
| 314 | |
| 315 /* | |
| 316 * Get the current information about the video hardware | |
| 317 */ | |
| 318 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
| 319 { | |
| 320 const SDL_VideoInfo *info; | |
| 321 | |
| 322 info = NULL; | |
| 323 if ( current_video ) { | |
| 324 info = ¤t_video->info; | |
| 325 } | |
| 326 return(info); | |
| 327 } | |
| 328 | |
| 329 /* | |
| 330 * Return a pointer to an array of available screen dimensions for the | |
| 331 * given format, sorted largest to smallest. Returns NULL if there are | |
| 332 * no dimensions available for a particular format, or (SDL_Rect **)-1 | |
| 333 * if any dimension is okay for the given format. If 'format' is NULL, | |
| 334 * the mode list will be for the format given by SDL_GetVideoInfo()->vfmt | |
| 335 */ | |
| 336 SDL_Rect ** SDL_ListModes (SDL_PixelFormat *format, Uint32 flags) | |
| 337 { | |
| 338 SDL_VideoDevice *video = current_video; | |
| 339 SDL_VideoDevice *this = current_video; | |
| 340 SDL_Rect **modes; | |
| 341 | |
| 342 modes = NULL; | |
| 343 if ( SDL_VideoSurface ) { | |
| 344 if ( format == NULL ) { | |
| 345 format = SDL_VideoSurface->format; | |
| 346 } | |
| 347 modes = video->ListModes(this, format, flags); | |
| 348 } | |
| 349 return(modes); | |
| 350 } | |
| 351 | |
| 352 /* | |
| 353 * Check to see if a particular video mode is supported. | |
| 354 * It returns 0 if the requested mode is not supported under any bit depth, | |
| 355 * or returns the bits-per-pixel of the closest available mode with the | |
| 356 * given width and height. If this bits-per-pixel is different from the | |
| 357 * one used when setting the video mode, SDL_SetVideoMode() will succeed, | |
| 358 * but will emulate the requested bits-per-pixel with a shadow surface. | |
| 359 */ | |
| 360 static Uint8 SDL_closest_depths[4][8] = { | |
| 361 /* 8 bit closest depth ordering */ | |
| 362 { 0, 8, 16, 15, 32, 24, 0, 0 }, | |
| 363 /* 15,16 bit closest depth ordering */ | |
| 364 { 0, 16, 15, 32, 24, 8, 0, 0 }, | |
| 365 /* 24 bit closest depth ordering */ | |
| 366 { 0, 24, 32, 16, 15, 8, 0, 0 }, | |
| 367 /* 32 bit closest depth ordering */ | |
| 368 { 0, 32, 16, 15, 24, 8, 0, 0 } | |
| 369 }; | |
| 370 | |
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371 |
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372 #ifdef __MACOS__ /* MPW optimization bug? */ |
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373 #define NEGATIVE_ONE 0xFFFFFFFF |
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374 #else |
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375 #define NEGATIVE_ONE -1 |
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376 #endif |
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377 |
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378 int SDL_VideoModeOK (int width, int height, int bpp, Uint32 flags) |
| 0 | 379 { |
| 380 int table, b, i; | |
| 381 int supported; | |
| 382 SDL_PixelFormat format; | |
| 383 SDL_Rect **sizes; | |
| 384 | |
| 385 /* Currently 1 and 4 bpp are not supported */ | |
| 386 if ( bpp < 8 || bpp > 32 ) { | |
| 387 return(0); | |
| 388 } | |
|
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389 if ( (width <= 0) || (height <= 0) ) { |
| 0 | 390 return(0); |
| 391 } | |
| 392 | |
| 393 /* Search through the list valid of modes */ | |
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394 SDL_memset(&format, 0, sizeof(format)); |
| 0 | 395 supported = 0; |
| 396 table = ((bpp+7)/8)-1; | |
| 397 SDL_closest_depths[table][0] = bpp; | |
| 398 SDL_closest_depths[table][7] = 0; | |
| 399 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
| 400 format.BitsPerPixel = SDL_closest_depths[table][b]; | |
| 401 sizes = SDL_ListModes(&format, flags); | |
| 402 if ( sizes == (SDL_Rect **)0 ) { | |
| 403 /* No sizes supported at this bit-depth */ | |
| 404 continue; | |
| 405 } else | |
|
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406 if (sizes == (SDL_Rect **)NEGATIVE_ONE) { |
| 0 | 407 /* Any size supported at this bit-depth */ |
| 408 supported = 1; | |
| 409 continue; | |
|
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410 } else if (current_video->handles_any_size) { |
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411 /* Driver can center a smaller surface to simulate fullscreen */ |
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412 for ( i=0; sizes[i]; ++i ) { |
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413 if ((sizes[i]->w >= width) && (sizes[i]->h >= height)) { |
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414 supported = 1; /* this mode can fit the centered window. */ |
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415 break; |
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416 } |
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417 } |
| 0 | 418 } else |
| 419 for ( i=0; sizes[i]; ++i ) { | |
| 420 if ((sizes[i]->w == width) && (sizes[i]->h == height)) { | |
| 421 supported = 1; | |
| 422 break; | |
| 423 } | |
| 424 } | |
| 425 } | |
| 426 if ( supported ) { | |
| 427 --b; | |
| 428 return(SDL_closest_depths[table][b]); | |
| 429 } else { | |
| 430 return(0); | |
| 431 } | |
| 432 } | |
| 433 | |
| 434 /* | |
| 435 * Get the closest non-emulated video mode to the one requested | |
| 436 */ | |
| 437 static int SDL_GetVideoMode (int *w, int *h, int *BitsPerPixel, Uint32 flags) | |
| 438 { | |
| 439 int table, b, i; | |
| 440 int supported; | |
| 441 int native_bpp; | |
| 442 SDL_PixelFormat format; | |
| 443 SDL_Rect **sizes; | |
| 444 | |
|
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445 /* Check parameters */ |
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446 if ( *BitsPerPixel < 8 || *BitsPerPixel > 32 ) { |
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447 SDL_SetError("Invalid bits per pixel (range is {8...32})"); |
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448 return(0); |
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449 } |
|
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450 if ((*w <= 0) || (*h <= 0)) { |
|
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451 SDL_SetError("Invalid width or height"); |
|
430
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452 return(0); |
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453 } |
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454 |
| 0 | 455 /* Try the original video mode, get the closest depth */ |
| 456 native_bpp = SDL_VideoModeOK(*w, *h, *BitsPerPixel, flags); | |
| 457 if ( native_bpp == *BitsPerPixel ) { | |
| 458 return(1); | |
| 459 } | |
| 460 if ( native_bpp > 0 ) { | |
| 461 *BitsPerPixel = native_bpp; | |
| 462 return(1); | |
| 463 } | |
| 464 | |
| 465 /* No exact size match at any depth, look for closest match */ | |
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466 SDL_memset(&format, 0, sizeof(format)); |
| 0 | 467 supported = 0; |
| 468 table = ((*BitsPerPixel+7)/8)-1; | |
| 469 SDL_closest_depths[table][0] = *BitsPerPixel; | |
| 470 SDL_closest_depths[table][7] = SDL_VideoSurface->format->BitsPerPixel; | |
| 471 for ( b = 0; !supported && SDL_closest_depths[table][b]; ++b ) { | |
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472 int best; |
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473 |
| 0 | 474 format.BitsPerPixel = SDL_closest_depths[table][b]; |
| 475 sizes = SDL_ListModes(&format, flags); | |
| 476 if ( sizes == (SDL_Rect **)0 ) { | |
| 477 /* No sizes supported at this bit-depth */ | |
| 478 continue; | |
| 479 } | |
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480 best=0; |
| 0 | 481 for ( i=0; sizes[i]; ++i ) { |
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482 /* Mode with both dimensions bigger or equal than asked ? */ |
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[PATCH] SDL_GetVideoMode() do not find the best video mode
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483 if ((sizes[i]->w >= *w) && (sizes[i]->h >= *h)) { |
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[PATCH] SDL_GetVideoMode() do not find the best video mode
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484 /* Mode with any dimension smaller or equal than current best ? */ |
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[PATCH] SDL_GetVideoMode() do not find the best video mode
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485 if ((sizes[i]->w <= sizes[best]->w) || (sizes[i]->h <= sizes[best]->h)) { |
|
1257
448a9a64537b
[PATCH] SDL_GetVideoMode() does not find best mode, part 2
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486 /* Now choose the mode that has less pixels */ |
|
1266
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487 if ((sizes[i]->w * sizes[i]->h) <= (sizes[best]->w * sizes[best]->h)) { |
|
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[PATCH] SDL_GetVideoMode() does not find best mode, part 2
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488 best=i; |
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[PATCH] SDL_GetVideoMode() does not find best mode, part 2
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489 supported = 1; |
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[PATCH] SDL_GetVideoMode() does not find best mode, part 2
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490 } |
| 0 | 491 } |
| 492 } | |
| 493 } | |
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[PATCH] SDL_GetVideoMode() do not find the best video mode
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494 if (supported) { |
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[PATCH] SDL_GetVideoMode() do not find the best video mode
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495 *w=sizes[best]->w; |
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[PATCH] SDL_GetVideoMode() do not find the best video mode
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496 *h=sizes[best]->h; |
| 0 | 497 *BitsPerPixel = SDL_closest_depths[table][b]; |
| 498 } | |
| 499 } | |
| 500 if ( ! supported ) { | |
| 501 SDL_SetError("No video mode large enough for %dx%d", *w, *h); | |
| 502 } | |
| 503 return(supported); | |
| 504 } | |
| 505 | |
| 506 /* This should probably go somewhere else -- like SDL_surface.c */ | |
| 507 static void SDL_ClearSurface(SDL_Surface *surface) | |
| 508 { | |
| 509 Uint32 black; | |
| 510 | |
| 511 black = SDL_MapRGB(surface->format, 0, 0, 0); | |
| 512 SDL_FillRect(surface, NULL, black); | |
| 513 if ((surface->flags&SDL_HWSURFACE) && (surface->flags&SDL_DOUBLEBUF)) { | |
| 514 SDL_Flip(surface); | |
| 515 SDL_FillRect(surface, NULL, black); | |
| 516 } | |
| 517 SDL_Flip(surface); | |
| 518 } | |
| 519 | |
| 520 /* | |
| 521 * Create a shadow surface suitable for fooling the app. :-) | |
| 522 */ | |
| 523 static void SDL_CreateShadowSurface(int depth) | |
| 524 { | |
| 525 Uint32 Rmask, Gmask, Bmask; | |
| 526 | |
| 527 /* Allocate the shadow surface */ | |
| 528 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
| 529 Rmask = (SDL_VideoSurface->format)->Rmask; | |
| 530 Gmask = (SDL_VideoSurface->format)->Gmask; | |
| 531 Bmask = (SDL_VideoSurface->format)->Bmask; | |
| 532 } else { | |
| 533 Rmask = Gmask = Bmask = 0; | |
| 534 } | |
| 535 SDL_ShadowSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
| 536 SDL_VideoSurface->w, SDL_VideoSurface->h, | |
| 537 depth, Rmask, Gmask, Bmask, 0); | |
| 538 if ( SDL_ShadowSurface == NULL ) { | |
| 539 return; | |
| 540 } | |
| 541 | |
| 542 /* 8-bit shadow surfaces report that they have exclusive palette */ | |
| 543 if ( SDL_ShadowSurface->format->palette ) { | |
| 544 SDL_ShadowSurface->flags |= SDL_HWPALETTE; | |
| 545 if ( depth == (SDL_VideoSurface->format)->BitsPerPixel ) { | |
|
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546 SDL_memcpy(SDL_ShadowSurface->format->palette->colors, |
| 0 | 547 SDL_VideoSurface->format->palette->colors, |
| 548 SDL_VideoSurface->format->palette->ncolors* | |
| 549 sizeof(SDL_Color)); | |
| 550 } else { | |
| 551 SDL_DitherColors( | |
| 552 SDL_ShadowSurface->format->palette->colors, depth); | |
| 553 } | |
| 554 } | |
| 555 | |
| 556 /* If the video surface is resizable, the shadow should say so */ | |
| 557 if ( (SDL_VideoSurface->flags & SDL_RESIZABLE) == SDL_RESIZABLE ) { | |
| 558 SDL_ShadowSurface->flags |= SDL_RESIZABLE; | |
| 559 } | |
| 560 /* If the video surface has no frame, the shadow should say so */ | |
| 561 if ( (SDL_VideoSurface->flags & SDL_NOFRAME) == SDL_NOFRAME ) { | |
| 562 SDL_ShadowSurface->flags |= SDL_NOFRAME; | |
| 563 } | |
| 564 /* If the video surface is fullscreen, the shadow should say so */ | |
| 565 if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 566 SDL_ShadowSurface->flags |= SDL_FULLSCREEN; | |
| 567 } | |
| 568 /* If the video surface is flippable, the shadow should say so */ | |
| 569 if ( (SDL_VideoSurface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 570 SDL_ShadowSurface->flags |= SDL_DOUBLEBUF; | |
| 571 } | |
| 572 return; | |
| 573 } | |
| 574 | |
|
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575 #ifdef __QNXNTO__ |
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576 #include <sys/neutrino.h> |
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4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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577 #endif /* __QNXNTO__ */ |
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4ab6d1fd028f
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578 |
| 0 | 579 /* |
| 580 * Set the requested video mode, allocating a shadow buffer if necessary. | |
| 581 */ | |
| 582 SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags) | |
| 583 { | |
| 584 SDL_VideoDevice *video, *this; | |
| 585 SDL_Surface *prev_mode, *mode; | |
| 586 int video_w; | |
| 587 int video_h; | |
| 588 int video_bpp; | |
| 589 int is_opengl; | |
| 590 SDL_GrabMode saved_grab; | |
| 591 | |
| 592 /* Start up the video driver, if necessary.. | |
| 593 WARNING: This is the only function protected this way! | |
| 594 */ | |
| 595 if ( ! current_video ) { | |
| 596 if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE) < 0 ) { | |
| 597 return(NULL); | |
| 598 } | |
| 599 } | |
| 600 this = video = current_video; | |
| 601 | |
|
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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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602 /* 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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603 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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604 width = video->info.current_w; |
|
8d9bb0cf2c2a
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 } |
|
8d9bb0cf2c2a
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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606 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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607 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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608 } |
| 0 | 609 /* Default to the current video bpp */ |
| 610 if ( bpp == 0 ) { | |
| 611 flags |= SDL_ANYFORMAT; | |
| 612 bpp = SDL_VideoSurface->format->BitsPerPixel; | |
| 613 } | |
| 614 | |
| 615 /* Get a good video mode, the closest one possible */ | |
| 616 video_w = width; | |
| 617 video_h = height; | |
| 618 video_bpp = bpp; | |
| 619 if ( ! SDL_GetVideoMode(&video_w, &video_h, &video_bpp, flags) ) { | |
| 620 return(NULL); | |
| 621 } | |
| 622 | |
| 623 /* Check the requested flags */ | |
| 1658 | 624 if ( flags & SDL_INTERNALOPENGL ) { |
| 625 SDL_SetError("SDL_INTERNALOPENGL is for internal use only"); | |
| 626 return(NULL); | |
| 627 } | |
| 0 | 628 if ( video_bpp > 8 ) { |
| 1658 | 629 /* There's no palette in > 8 bits-per-pixel mode */ |
| 0 | 630 flags &= ~SDL_HWPALETTE; |
| 631 } | |
| 632 #if 0 | |
| 633 if ( (flags&SDL_FULLSCREEN) != SDL_FULLSCREEN ) { | |
| 634 /* There's no windowed double-buffering */ | |
| 635 flags &= ~SDL_DOUBLEBUF; | |
| 636 } | |
| 637 #endif | |
| 638 if ( (flags&SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 639 /* Use hardware surfaces when double-buffering */ | |
| 640 flags |= SDL_HWSURFACE; | |
| 641 } | |
| 642 | |
| 643 is_opengl = ( ( flags & SDL_OPENGL ) == SDL_OPENGL ); | |
| 644 if ( is_opengl ) { | |
| 645 /* These flags are for 2D video modes only */ | |
| 646 flags &= ~(SDL_HWSURFACE|SDL_DOUBLEBUF); | |
| 1658 | 647 /* This flag tells the backends to treat the surface accordingly */ |
| 648 flags |= SDL_INTERNALOPENGL; | |
| 0 | 649 } |
| 650 | |
|
14
c3e9d4a623c1
Fixed stuck keys when changing the video mode
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
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651 /* Reset the keyboard here so event callbacks can run */ |
|
c3e9d4a623c1
Fixed stuck keys when changing the video mode
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diff
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652 SDL_ResetKeyboard(); |
|
460
a888b3ae31ff
Reset mouse state when changing video modes
Sam Lantinga <slouken@libsdl.org>
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653 SDL_ResetMouse(); |
| 1296 | 654 SDL_cursorstate &= ~CURSOR_USINGSW; |
|
14
c3e9d4a623c1
Fixed stuck keys when changing the video mode
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parents:
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diff
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655 |
| 0 | 656 /* Clean up any previous video mode */ |
| 657 if ( SDL_PublicSurface != NULL ) { | |
| 658 SDL_PublicSurface = NULL; | |
| 659 } | |
| 660 if ( SDL_ShadowSurface != NULL ) { | |
| 661 SDL_Surface *ready_to_go; | |
| 662 ready_to_go = SDL_ShadowSurface; | |
| 663 SDL_ShadowSurface = NULL; | |
| 664 SDL_FreeSurface(ready_to_go); | |
| 665 } | |
| 666 if ( video->physpal ) { | |
|
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667 SDL_free(video->physpal->colors); |
|
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668 SDL_free(video->physpal); |
| 0 | 669 video->physpal = NULL; |
| 670 } | |
| 671 if( video->gammacols) { | |
|
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672 SDL_free(video->gammacols); |
| 0 | 673 video->gammacols = NULL; |
| 674 } | |
| 675 | |
| 676 /* Save the previous grab state and turn off grab for mode switch */ | |
| 677 saved_grab = SDL_WM_GrabInputOff(); | |
| 678 | |
| 679 /* Try to set the video mode, along with offset and clipping */ | |
| 680 prev_mode = SDL_VideoSurface; | |
| 681 SDL_LockCursor(); | |
| 682 SDL_VideoSurface = NULL; /* In case it's freed by driver */ | |
| 683 mode = video->SetVideoMode(this, prev_mode,video_w,video_h,video_bpp,flags); | |
| 684 if ( mode ) { /* Prevent resize events from mode change */ | |
| 1190 | 685 /* But not on OS/2 */ |
| 686 #ifndef __OS2__ | |
| 0 | 687 SDL_PrivateResize(mode->w, mode->h); |
| 1190 | 688 #endif |
|
229
4d24d5a660a8
Fix a crash if an OpenGL video mode can't be set.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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689 |
|
4d24d5a660a8
Fix a crash if an OpenGL video mode can't be set.
Sam Lantinga <slouken@libsdl.org>
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690 /* Sam - If we asked for OpenGL mode, and didn't get it, fail */ |
| 1658 | 691 if ( is_opengl && !(mode->flags & SDL_INTERNALOPENGL) ) { |
|
229
4d24d5a660a8
Fix a crash if an OpenGL video mode can't be set.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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692 mode = NULL; |
|
883
50f5a29c6a17
Date: Sat, 10 Apr 2004 02:25:33 -0400
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
693 SDL_SetError("OpenGL not available"); |
|
229
4d24d5a660a8
Fix a crash if an OpenGL video mode can't be set.
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694 } |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
695 } |
| 0 | 696 /* |
| 697 * rcg11292000 | |
| 698 * If you try to set an SDL_OPENGL surface, and fail to find a | |
| 699 * matching visual, then the next call to SDL_SetVideoMode() | |
| 700 * will segfault, since we no longer point to a dummy surface, | |
| 701 * but rather NULL. | |
| 702 * Sam 11/29/00 | |
| 703 * WARNING, we need to make sure that the previous mode hasn't | |
| 704 * already been freed by the video driver. What do we do in | |
| 705 * that case? Should we call SDL_VideoInit() again? | |
| 706 */ | |
| 707 SDL_VideoSurface = (mode != NULL) ? mode : prev_mode; | |
| 708 | |
| 709 if ( (mode != NULL) && (!is_opengl) ) { | |
| 710 /* Sanity check */ | |
| 711 if ( (mode->w < width) || (mode->h < height) ) { | |
| 712 SDL_SetError("Video mode smaller than requested"); | |
| 713 return(NULL); | |
| 714 } | |
| 715 | |
| 716 /* If we have a palettized surface, create a default palette */ | |
| 717 if ( mode->format->palette ) { | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
718 SDL_PixelFormat *vf = mode->format; |
| 0 | 719 SDL_DitherColors(vf->palette->colors, vf->BitsPerPixel); |
| 720 video->SetColors(this, 0, vf->palette->ncolors, | |
| 721 vf->palette->colors); | |
| 722 } | |
| 723 | |
| 724 /* Clear the surface to black */ | |
| 725 video->offset_x = 0; | |
| 726 video->offset_y = 0; | |
| 727 mode->offset = 0; | |
| 728 SDL_SetClipRect(mode, NULL); | |
| 729 SDL_ClearSurface(mode); | |
| 730 | |
| 731 /* Now adjust the offsets to match the desired mode */ | |
| 732 video->offset_x = (mode->w-width)/2; | |
| 733 video->offset_y = (mode->h-height)/2; | |
| 734 mode->offset = video->offset_y*mode->pitch + | |
| 735 video->offset_x*mode->format->BytesPerPixel; | |
| 736 #ifdef DEBUG_VIDEO | |
| 737 fprintf(stderr, | |
| 738 "Requested mode: %dx%dx%d, obtained mode %dx%dx%d (offset %d)\n", | |
| 739 width, height, bpp, | |
| 740 mode->w, mode->h, mode->format->BitsPerPixel, mode->offset); | |
| 741 #endif | |
| 742 mode->w = width; | |
| 743 mode->h = height; | |
| 744 SDL_SetClipRect(mode, NULL); | |
| 745 } | |
| 746 SDL_ResetCursor(); | |
| 747 SDL_UnlockCursor(); | |
| 748 | |
| 749 /* If we failed setting a video mode, return NULL... (Uh Oh!) */ | |
| 750 if ( mode == NULL ) { | |
| 751 return(NULL); | |
| 752 } | |
| 753 | |
| 754 /* If there is no window manager, set the SDL_NOFRAME flag */ | |
| 755 if ( ! video->info.wm_available ) { | |
| 756 mode->flags |= SDL_NOFRAME; | |
| 757 } | |
| 758 | |
| 759 /* Reset the mouse cursor and grab for new video mode */ | |
| 760 SDL_SetCursor(NULL); | |
| 761 if ( video->UpdateMouse ) { | |
| 762 video->UpdateMouse(this); | |
| 763 } | |
| 764 SDL_WM_GrabInput(saved_grab); | |
| 765 SDL_GetRelativeMouseState(NULL, NULL); /* Clear first large delta */ | |
| 766 | |
|
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Sam Lantinga <slouken@libsdl.org>
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767 #if SDL_VIDEO_OPENGL |
|
650
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
Ryan C. Gordon <icculus@icculus.org>
parents:
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768 /* Load GL symbols (before MakeCurrent, where we need glGetString). */ |
| 1658 | 769 if ( flags & SDL_INTERNALOPENGL ) { |
|
910
4ab6d1fd028f
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parents:
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|
770 |
|
1032
c1c2efca4548
Date: Mon, 24 Jan 2005 21:37:56 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
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|
771 #if defined(__QNXNTO__) && (_NTO_VERSION < 630) |
|
916
46916168361d
Date: Sun, 25 Jul 2004 23:10:03 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
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772 #define __SDL_NOGETPROCADDR__ |
|
989
475166d13b44
Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
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773 #elif defined(__MINT__) |
|
475166d13b44
Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
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|
774 #define __SDL_NOGETPROCADDR__ |
|
916
46916168361d
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Sam Lantinga <slouken@libsdl.org>
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775 #endif |
|
910
4ab6d1fd028f
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776 #ifdef __SDL_NOGETPROCADDR__ |
|
4ab6d1fd028f
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777 #define SDL_PROC(ret,func,params) video->func=func; |
|
663
8bedd6d61642
Date: Sat, 2 Aug 2003 16:22:51 +0300
Sam Lantinga <slouken@libsdl.org>
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778 #else |
|
910
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779 #define SDL_PROC(ret,func,params) \ |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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780 do { \ |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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781 video->func = SDL_GL_GetProcAddress(#func); \ |
|
4ab6d1fd028f
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diff
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|
782 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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diff
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|
783 SDL_SetError("Couldn't load GL function %s: %s\n", #func, SDL_GetError()); \ |
|
910
4ab6d1fd028f
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784 return(NULL); \ |
|
4ab6d1fd028f
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diff
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785 } \ |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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|
786 } while ( 0 ); |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
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787 |
|
4ab6d1fd028f
Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
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|
788 #endif /* __SDL_NOGETPROCADDR__ */ |
|
4ab6d1fd028f
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parents:
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diff
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|
789 |
|
650
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
Ryan C. Gordon <icculus@icculus.org>
parents:
630
diff
changeset
|
790 #include "SDL_glfuncs.h" |
|
fe445b59d307
We need to lookup the address of glGetString before calling GL_MakeCurrent(),
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791 #undef SDL_PROC |
|
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792 } |
|
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793 #endif /* SDL_VIDEO_OPENGL */ |
|
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794 |
| 0 | 795 /* If we're running OpenGL, make the context current */ |
| 1658 | 796 if ( (video->screen->flags & SDL_INTERNALOPENGL) && |
| 0 | 797 video->GL_MakeCurrent ) { |
| 798 if ( video->GL_MakeCurrent(this) < 0 ) { | |
| 799 return(NULL); | |
| 800 } | |
| 801 } | |
| 802 | |
| 803 /* Create a shadow surface if necessary */ | |
| 804 /* There are three conditions under which we create a shadow surface: | |
| 805 1. We need a particular bits-per-pixel that we didn't get. | |
| 806 2. We need a hardware palette and didn't get one. | |
| 807 3. We need a software surface and got a hardware surface. | |
| 808 */ | |
| 809 if ( !(SDL_VideoSurface->flags & SDL_OPENGL) && | |
| 810 ( | |
| 811 ( !(flags&SDL_ANYFORMAT) && | |
| 812 (SDL_VideoSurface->format->BitsPerPixel != bpp)) || | |
| 813 ( (flags&SDL_HWPALETTE) && | |
| 814 !(SDL_VideoSurface->flags&SDL_HWPALETTE)) || | |
| 815 /* If the surface is in hardware, video writes are visible | |
| 816 as soon as they are performed, so we need to buffer them | |
| 817 */ | |
| 818 ( ((flags&SDL_HWSURFACE) == SDL_SWSURFACE) && | |
|
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819 (SDL_VideoSurface->flags&SDL_HWSURFACE)) || |
|
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820 ( (flags&SDL_DOUBLEBUF) && |
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821 (SDL_VideoSurface->flags&SDL_HWSURFACE) && |
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822 !(SDL_VideoSurface->flags&SDL_DOUBLEBUF)) |
| 0 | 823 ) ) { |
| 824 SDL_CreateShadowSurface(bpp); | |
| 825 if ( SDL_ShadowSurface == NULL ) { | |
| 826 SDL_SetError("Couldn't create shadow surface"); | |
| 827 return(NULL); | |
| 828 } | |
| 829 SDL_PublicSurface = SDL_ShadowSurface; | |
| 830 } else { | |
| 831 SDL_PublicSurface = SDL_VideoSurface; | |
| 832 } | |
| 833 video->info.vfmt = SDL_VideoSurface->format; | |
|
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834 video->info.current_w = SDL_VideoSurface->w; |
|
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835 video->info.current_h = SDL_VideoSurface->h; |
| 0 | 836 |
| 837 /* We're done! */ | |
| 838 return(SDL_PublicSurface); | |
| 839 } | |
| 840 | |
| 841 /* | |
| 842 * Convert a surface into the video pixel format. | |
| 843 */ | |
| 844 SDL_Surface * SDL_DisplayFormat (SDL_Surface *surface) | |
| 845 { | |
| 846 Uint32 flags; | |
| 847 | |
| 848 if ( ! SDL_PublicSurface ) { | |
| 849 SDL_SetError("No video mode has been set"); | |
| 850 return(NULL); | |
| 851 } | |
| 852 /* Set the flags appropriate for copying to display surface */ | |
|
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853 if (((SDL_PublicSurface->flags&SDL_HWSURFACE) == SDL_HWSURFACE) && current_video->info.blit_hw) |
|
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854 flags = SDL_HWSURFACE; |
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855 else |
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856 flags = SDL_SWSURFACE; |
| 0 | 857 #ifdef AUTORLE_DISPLAYFORMAT |
| 858 flags |= (surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA)); | |
| 859 flags |= SDL_RLEACCELOK; | |
| 860 #else | |
| 861 flags |= surface->flags & (SDL_SRCCOLORKEY|SDL_SRCALPHA|SDL_RLEACCELOK); | |
| 862 #endif | |
| 863 return(SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags)); | |
| 864 } | |
| 865 | |
| 866 /* | |
| 867 * Convert a surface into a format that's suitable for blitting to | |
| 868 * the screen, but including an alpha channel. | |
| 869 */ | |
| 870 SDL_Surface *SDL_DisplayFormatAlpha(SDL_Surface *surface) | |
| 871 { | |
| 872 SDL_PixelFormat *vf; | |
| 873 SDL_PixelFormat *format; | |
| 874 SDL_Surface *converted; | |
| 875 Uint32 flags; | |
| 876 /* default to ARGB8888 */ | |
| 877 Uint32 amask = 0xff000000; | |
| 878 Uint32 rmask = 0x00ff0000; | |
| 879 Uint32 gmask = 0x0000ff00; | |
| 880 Uint32 bmask = 0x000000ff; | |
| 881 | |
| 882 if ( ! SDL_PublicSurface ) { | |
| 883 SDL_SetError("No video mode has been set"); | |
| 884 return(NULL); | |
| 885 } | |
| 886 vf = SDL_PublicSurface->format; | |
| 887 | |
| 888 switch(vf->BytesPerPixel) { | |
| 889 case 2: | |
| 890 /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}. | |
| 891 For anything else (like ARGB4444) it doesn't matter | |
| 892 since we have no special code for it anyway */ | |
| 893 if ( (vf->Rmask == 0x1f) && | |
| 894 (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) { | |
| 895 rmask = 0xff; | |
| 896 bmask = 0xff0000; | |
| 897 } | |
| 898 break; | |
| 899 | |
| 900 case 3: | |
| 901 case 4: | |
| 902 /* Keep the video format, as long as the high 8 bits are | |
| 903 unused or alpha */ | |
| 904 if ( (vf->Rmask == 0xff) && (vf->Bmask == 0xff0000) ) { | |
| 905 rmask = 0xff; | |
| 906 bmask = 0xff0000; | |
| 907 } | |
| 908 break; | |
| 909 | |
| 910 default: | |
| 911 /* We have no other optimised formats right now. When/if a new | |
| 912 optimised alpha format is written, add the converter here */ | |
| 913 break; | |
| 914 } | |
| 915 format = SDL_AllocFormat(32, rmask, gmask, bmask, amask); | |
| 916 flags = SDL_PublicSurface->flags & SDL_HWSURFACE; | |
| 917 flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); | |
| 918 converted = SDL_ConvertSurface(surface, format, flags); | |
| 919 SDL_FreeFormat(format); | |
| 920 return(converted); | |
| 921 } | |
| 922 | |
| 923 /* | |
| 924 * Update a specific portion of the physical screen | |
| 925 */ | |
| 926 void SDL_UpdateRect(SDL_Surface *screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h) | |
| 927 { | |
| 928 if ( screen ) { | |
| 929 SDL_Rect rect; | |
| 930 | |
| 931 /* Perform some checking */ | |
| 932 if ( w == 0 ) | |
| 933 w = screen->w; | |
| 934 if ( h == 0 ) | |
| 935 h = screen->h; | |
| 936 if ( (int)(x+w) > screen->w ) | |
| 937 return; | |
| 938 if ( (int)(y+h) > screen->h ) | |
| 939 return; | |
| 940 | |
| 941 /* Fill the rectangle */ | |
|
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942 rect.x = (Sint16)x; |
|
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943 rect.y = (Sint16)y; |
|
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944 rect.w = (Uint16)w; |
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945 rect.h = (Uint16)h; |
| 0 | 946 SDL_UpdateRects(screen, 1, &rect); |
| 947 } | |
| 948 } | |
| 949 void SDL_UpdateRects (SDL_Surface *screen, int numrects, SDL_Rect *rects) | |
| 950 { | |
| 951 int i; | |
| 952 SDL_VideoDevice *video = current_video; | |
| 953 SDL_VideoDevice *this = current_video; | |
| 954 | |
|
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955 if ( screen->flags & SDL_OPENGL ) { |
|
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956 SDL_SetError("OpenGL active, use SDL_GL_SwapBuffers()"); |
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957 return; |
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958 } |
| 0 | 959 if ( screen == SDL_ShadowSurface ) { |
| 960 /* Blit the shadow surface using saved mapping */ | |
|
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961 SDL_Palette *pal = screen->format->palette; |
| 0 | 962 SDL_Color *saved_colors = NULL; |
|
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963 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 964 /* simulated 8bpp, use correct physical palette */ |
| 965 saved_colors = pal->colors; | |
| 966 if ( video->gammacols ) { | |
| 967 /* gamma-corrected palette */ | |
| 968 pal->colors = video->gammacols; | |
| 969 } else if ( video->physpal ) { | |
| 970 /* physical palette different from logical */ | |
| 971 pal->colors = video->physpal->colors; | |
| 972 } | |
| 973 } | |
| 974 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { | |
| 975 SDL_LockCursor(); | |
| 976 SDL_DrawCursor(SDL_ShadowSurface); | |
| 977 for ( i=0; i<numrects; ++i ) { | |
| 978 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 979 SDL_VideoSurface, &rects[i]); | |
| 980 } | |
| 981 SDL_EraseCursor(SDL_ShadowSurface); | |
| 982 SDL_UnlockCursor(); | |
| 983 } else { | |
| 984 for ( i=0; i<numrects; ++i ) { | |
| 985 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], | |
| 986 SDL_VideoSurface, &rects[i]); | |
| 987 } | |
| 988 } | |
|
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989 if ( saved_colors ) { |
| 0 | 990 pal->colors = saved_colors; |
|
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991 } |
| 0 | 992 |
| 993 /* Fall through to video surface update */ | |
| 994 screen = SDL_VideoSurface; | |
| 995 } | |
| 996 if ( screen == SDL_VideoSurface ) { | |
| 997 /* Update the video surface */ | |
| 998 if ( screen->offset ) { | |
| 999 for ( i=0; i<numrects; ++i ) { | |
| 1000 rects[i].x += video->offset_x; | |
| 1001 rects[i].y += video->offset_y; | |
| 1002 } | |
| 1003 video->UpdateRects(this, numrects, rects); | |
| 1004 for ( i=0; i<numrects; ++i ) { | |
| 1005 rects[i].x -= video->offset_x; | |
| 1006 rects[i].y -= video->offset_y; | |
| 1007 } | |
| 1008 } else { | |
| 1009 video->UpdateRects(this, numrects, rects); | |
| 1010 } | |
| 1011 } | |
| 1012 } | |
| 1013 | |
| 1014 /* | |
| 1015 * Performs hardware double buffering, if possible, or a full update if not. | |
| 1016 */ | |
| 1017 int SDL_Flip(SDL_Surface *screen) | |
| 1018 { | |
| 1019 SDL_VideoDevice *video = current_video; | |
| 1020 /* Copy the shadow surface to the video surface */ | |
| 1021 if ( screen == SDL_ShadowSurface ) { | |
| 1022 SDL_Rect rect; | |
|
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1023 SDL_Palette *pal = screen->format->palette; |
| 0 | 1024 SDL_Color *saved_colors = NULL; |
|
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1025 if ( pal && !(SDL_VideoSurface->flags & SDL_HWPALETTE) ) { |
| 0 | 1026 /* simulated 8bpp, use correct physical palette */ |
| 1027 saved_colors = pal->colors; | |
| 1028 if ( video->gammacols ) { | |
| 1029 /* gamma-corrected palette */ | |
| 1030 pal->colors = video->gammacols; | |
| 1031 } else if ( video->physpal ) { | |
| 1032 /* physical palette different from logical */ | |
| 1033 pal->colors = video->physpal->colors; | |
| 1034 } | |
| 1035 } | |
| 1036 | |
| 1037 rect.x = 0; | |
| 1038 rect.y = 0; | |
| 1039 rect.w = screen->w; | |
| 1040 rect.h = screen->h; | |
|
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1041 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) { |
|
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1042 SDL_LockCursor(); |
|
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1043 SDL_DrawCursor(SDL_ShadowSurface); |
|
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1044 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1045 SDL_VideoSurface, &rect); |
|
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1046 SDL_EraseCursor(SDL_ShadowSurface); |
|
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1047 SDL_UnlockCursor(); |
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1048 } else { |
|
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1049 SDL_LowerBlit(SDL_ShadowSurface, &rect, |
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1050 SDL_VideoSurface, &rect); |
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1051 } |
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1052 if ( saved_colors ) { |
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1053 pal->colors = saved_colors; |
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1054 } |
| 0 | 1055 |
|
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1056 /* Fall through to video surface update */ |
| 0 | 1057 screen = SDL_VideoSurface; |
| 1058 } | |
| 1059 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 1060 SDL_VideoDevice *this = current_video; | |
| 1061 return(video->FlipHWSurface(this, SDL_VideoSurface)); | |
| 1062 } else { | |
| 1063 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1064 } | |
| 1065 return(0); | |
| 1066 } | |
| 1067 | |
| 1068 static void SetPalette_logical(SDL_Surface *screen, SDL_Color *colors, | |
| 1069 int firstcolor, int ncolors) | |
| 1070 { | |
|
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1071 SDL_Palette *pal = screen->format->palette; |
| 0 | 1072 SDL_Palette *vidpal; |
| 1073 | |
| 1074 if ( colors != (pal->colors + firstcolor) ) { | |
|
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1075 SDL_memcpy(pal->colors + firstcolor, colors, |
| 0 | 1076 ncolors * sizeof(*colors)); |
| 1077 } | |
| 1078 | |
| 1079 vidpal = SDL_VideoSurface->format->palette; | |
| 1080 if ( (screen == SDL_ShadowSurface) && vidpal ) { | |
|
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1081 /* |
| 0 | 1082 * This is a shadow surface, and the physical |
| 1083 * framebuffer is also indexed. Propagate the | |
| 1084 * changes to its logical palette so that | |
| 1085 * updates are always identity blits | |
| 1086 */ | |
|
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1087 SDL_memcpy(vidpal->colors + firstcolor, colors, |
| 0 | 1088 ncolors * sizeof(*colors)); |
| 1089 } | |
| 1090 SDL_FormatChanged(screen); | |
| 1091 } | |
| 1092 | |
| 1093 static int SetPalette_physical(SDL_Surface *screen, | |
| 1094 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1095 { | |
| 1096 SDL_VideoDevice *video = current_video; | |
| 1097 int gotall = 1; | |
| 1098 | |
| 1099 if ( video->physpal ) { | |
| 1100 /* We need to copy the new colors, since we haven't | |
| 1101 * already done the copy in the logical set above. | |
| 1102 */ | |
|
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1103 SDL_memcpy(video->physpal->colors + firstcolor, |
| 0 | 1104 colors, ncolors * sizeof(*colors)); |
| 1105 } | |
| 1106 if ( screen == SDL_ShadowSurface ) { | |
| 1107 if ( SDL_VideoSurface->flags & SDL_HWPALETTE ) { | |
| 1108 /* | |
| 1109 * The real screen is also indexed - set its physical | |
| 1110 * palette. The physical palette does not include the | |
| 1111 * gamma modification, we apply it directly instead, | |
| 1112 * but this only happens if we have hardware palette. | |
| 1113 */ | |
| 1114 screen = SDL_VideoSurface; | |
| 1115 } else { | |
| 1116 /* | |
| 1117 * The video surface is not indexed - invalidate any | |
| 1118 * active shadow-to-video blit mappings. | |
| 1119 */ | |
| 1120 if ( screen->map->dst == SDL_VideoSurface ) { | |
| 1121 SDL_InvalidateMap(screen->map); | |
| 1122 } | |
| 1123 if ( video->gamma ) { | |
| 1124 if( ! video->gammacols ) { | |
| 1125 SDL_Palette *pp = video->physpal; | |
| 1126 if(!pp) | |
| 1127 pp = screen->format->palette; | |
|
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1128 video->gammacols = SDL_malloc(pp->ncolors |
| 0 | 1129 * sizeof(SDL_Color)); |
| 1130 SDL_ApplyGamma(video->gamma, | |
| 1131 pp->colors, | |
| 1132 video->gammacols, | |
| 1133 pp->ncolors); | |
| 1134 } else { | |
| 1135 SDL_ApplyGamma(video->gamma, colors, | |
| 1136 video->gammacols | |
| 1137 + firstcolor, | |
| 1138 ncolors); | |
| 1139 } | |
| 1140 } | |
| 1141 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 1142 } | |
| 1143 } | |
| 1144 | |
| 1145 if ( screen == SDL_VideoSurface ) { | |
| 1146 SDL_Color gcolors[256]; | |
| 1147 | |
|
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1148 if ( video->gamma ) { |
|
66c02f83f5bf
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parents:
656
diff
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|
1149 SDL_ApplyGamma(video->gamma, colors, gcolors, ncolors); |
| 0 | 1150 colors = gcolors; |
| 1151 } | |
| 1152 gotall = video->SetColors(video, firstcolor, ncolors, colors); | |
| 1153 if ( ! gotall ) { | |
| 1154 /* The video flags shouldn't have SDL_HWPALETTE, and | |
| 1155 the video driver is responsible for copying back the | |
| 1156 correct colors into the video surface palette. | |
| 1157 */ | |
| 1158 ; | |
| 1159 } | |
| 1160 SDL_CursorPaletteChanged(); | |
| 1161 } | |
| 1162 return gotall; | |
| 1163 } | |
| 1164 | |
| 1165 /* | |
| 1166 * Set the physical and/or logical colormap of a surface: | |
| 1167 * Only the screen has a physical colormap. It determines what is actually | |
| 1168 * sent to the display. | |
| 1169 * The logical colormap is used to map blits to/from the surface. | |
| 1170 * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL | |
| 1171 * | |
| 1172 * Return nonzero if all colours were set as requested, or 0 otherwise. | |
| 1173 */ | |
| 1174 int SDL_SetPalette(SDL_Surface *screen, int which, | |
| 1175 SDL_Color *colors, int firstcolor, int ncolors) | |
| 1176 { | |
|
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656
diff
changeset
|
1177 SDL_Palette *pal; |
| 0 | 1178 int gotall; |
| 1179 int palsize; | |
| 1180 | |
| 34 | 1181 if ( ! current_video ) { |
| 1182 return 0; | |
| 1183 } | |
| 0 | 1184 if ( screen != SDL_PublicSurface ) { |
|
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diff
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|
1185 /* only screens have physical palettes */ |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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diff
changeset
|
1186 which &= ~SDL_PHYSPAL; |
| 0 | 1187 } else if( (screen->flags & SDL_HWPALETTE) != SDL_HWPALETTE ) { |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1188 /* hardware palettes required for split colormaps */ |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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parents:
656
diff
changeset
|
1189 which |= SDL_PHYSPAL | SDL_LOGPAL; |
| 0 | 1190 } |
| 1191 | |
| 1192 /* Verify the parameters */ | |
| 1193 pal = screen->format->palette; | |
| 1194 if( !pal ) { | |
|
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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diff
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|
1195 return 0; /* not a palettized surface */ |
| 0 | 1196 } |
| 1197 gotall = 1; | |
| 1198 palsize = 1 << screen->format->BitsPerPixel; | |
| 1199 if ( ncolors > (palsize - firstcolor) ) { | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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parents:
656
diff
changeset
|
1200 ncolors = (palsize - firstcolor); |
| 0 | 1201 gotall = 0; |
| 1202 } | |
| 1203 | |
| 1204 if ( which & SDL_LOGPAL ) { | |
| 1205 /* | |
| 1206 * Logical palette change: The actual screen isn't affected, | |
| 1207 * but the internal colormap is altered so that the | |
| 1208 * interpretation of the pixel values (for blits etc) is | |
| 1209 * changed. | |
| 1210 */ | |
|
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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diff
changeset
|
1211 SetPalette_logical(screen, colors, firstcolor, ncolors); |
| 0 | 1212 } |
| 1213 if ( which & SDL_PHYSPAL ) { | |
| 1214 SDL_VideoDevice *video = current_video; | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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656
diff
changeset
|
1215 /* |
| 0 | 1216 * Physical palette change: This doesn't affect the |
| 1217 * program's idea of what the screen looks like, but changes | |
| 1218 * its actual appearance. | |
| 1219 */ | |
|
662
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1220 if(!video) |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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656
diff
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|
1221 return gotall; /* video not yet initialized */ |
| 0 | 1222 if(!video->physpal && !(which & SDL_LOGPAL) ) { |
| 1223 /* Lazy physical palette allocation */ | |
|
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
1224 int size; |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
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1330
diff
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|
1225 SDL_Palette *pp = SDL_malloc(sizeof(*pp)); |
|
944
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1226 if ( !pp ) { |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
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|
1227 return 0; |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1228 } |
| 0 | 1229 current_video->physpal = pp; |
| 1230 pp->ncolors = pal->ncolors; | |
| 1231 size = pp->ncolors * sizeof(SDL_Color); | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1232 pp->colors = SDL_malloc(size); |
|
944
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1233 if ( !pp->colors ) { |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
changeset
|
1234 return 0; |
|
cdea7cbc3e23
Date: Wed, 28 Jul 2004 14:56:57 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
916
diff
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|
1235 } |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1236 SDL_memcpy(pp->colors, pal->colors, size); |
| 0 | 1237 } |
| 1238 if ( ! SetPalette_physical(screen, | |
| 1239 colors, firstcolor, ncolors) ) { | |
| 1240 gotall = 0; | |
| 1241 } | |
| 1242 } | |
| 1243 return gotall; | |
| 1244 } | |
| 1245 | |
| 1246 int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor, | |
| 1247 int ncolors) | |
| 1248 { | |
|
662
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Date: Sun, 27 Jul 2003 22:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
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656
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changeset
|
1249 return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, |
| 0 | 1250 colors, firstcolor, ncolors); |
| 1251 } | |
| 1252 | |
| 1253 /* | |
| 1254 * Clean up the video subsystem | |
| 1255 */ | |
| 1256 void SDL_VideoQuit (void) | |
| 1257 { | |
| 1258 SDL_Surface *ready_to_go; | |
| 1259 | |
| 1260 if ( current_video ) { | |
| 1261 SDL_VideoDevice *video = current_video; | |
| 1262 SDL_VideoDevice *this = current_video; | |
| 1263 | |
| 1264 /* Halt event processing before doing anything else */ | |
| 1265 SDL_StopEventLoop(); | |
| 1266 | |
| 1267 /* Clean up allocated window manager items */ | |
| 1268 if ( SDL_PublicSurface ) { | |
| 1269 SDL_PublicSurface = NULL; | |
| 1270 } | |
| 1271 SDL_CursorQuit(); | |
| 1272 | |
| 1273 /* Just in case... */ | |
| 1274 SDL_WM_GrabInputOff(); | |
| 1275 | |
| 1276 /* Clean up the system video */ | |
| 1277 video->VideoQuit(this); | |
| 1278 | |
| 1279 /* Free any lingering surfaces */ | |
| 1280 ready_to_go = SDL_ShadowSurface; | |
| 1281 SDL_ShadowSurface = NULL; | |
| 1282 SDL_FreeSurface(ready_to_go); | |
| 1283 if ( SDL_VideoSurface != NULL ) { | |
| 1284 ready_to_go = SDL_VideoSurface; | |
| 1285 SDL_VideoSurface = NULL; | |
| 1286 SDL_FreeSurface(ready_to_go); | |
| 1287 } | |
| 1288 SDL_PublicSurface = NULL; | |
| 1289 | |
| 1290 /* Clean up miscellaneous memory */ | |
| 1291 if ( video->physpal ) { | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
1292 SDL_free(video->physpal->colors); |
|
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1293 SDL_free(video->physpal); |
| 0 | 1294 video->physpal = NULL; |
| 1295 } | |
| 1296 if ( video->gammacols ) { | |
|
1336
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Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
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|
1297 SDL_free(video->gammacols); |
| 0 | 1298 video->gammacols = NULL; |
| 1299 } | |
| 1300 if ( video->gamma ) { | |
|
1336
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Use SDL_ prefixed versions of C library functions.
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diff
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|
1301 SDL_free(video->gamma); |
| 0 | 1302 video->gamma = NULL; |
| 1303 } | |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
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|
1304 if ( video->wm_title != NULL ) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
1305 SDL_free(video->wm_title); |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
1306 video->wm_title = NULL; |
| 0 | 1307 } |
|
58
bd6b0a910a65
* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
parents:
47
diff
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|
1308 if ( video->wm_icon != NULL ) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
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|
1309 SDL_free(video->wm_icon); |
|
58
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* Removed fullscreen menu option from the "Window" menu
Sam Lantinga <slouken@lokigames.com>
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diff
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|
1310 video->wm_icon = NULL; |
| 0 | 1311 } |
| 1312 | |
| 1313 /* Finish cleaning up video subsystem */ | |
| 1314 video->free(this); | |
| 1315 current_video = NULL; | |
| 1316 } | |
| 1317 return; | |
| 1318 } | |
| 1319 | |
| 1320 /* Load the GL driver library */ | |
| 1321 int SDL_GL_LoadLibrary(const char *path) | |
| 1322 { | |
| 1323 SDL_VideoDevice *video = current_video; | |
| 1324 SDL_VideoDevice *this = current_video; | |
| 1325 int retval; | |
| 1326 | |
| 1327 retval = -1; | |
|
423
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More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1328 if ( video == NULL ) { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1329 SDL_SetError("Video subsystem has not been initialized"); |
| 0 | 1330 } else { |
|
423
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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changeset
|
1331 if ( video->GL_LoadLibrary ) { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1332 retval = video->GL_LoadLibrary(this, path); |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1333 } else { |
|
d1565c52ded5
More correct error reported when calling SDL_GL_LoadLibrary() without
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|
1334 SDL_SetError("No dynamic GL support in video driver"); |
|
d1565c52ded5
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|
1335 } |
| 0 | 1336 } |
| 1337 return(retval); | |
| 1338 } | |
| 1339 | |
| 1340 void *SDL_GL_GetProcAddress(const char* proc) | |
| 1341 { | |
| 1342 SDL_VideoDevice *video = current_video; | |
| 1343 SDL_VideoDevice *this = current_video; | |
| 1344 void *func; | |
| 1345 | |
| 1346 func = NULL; | |
| 1347 if ( video->GL_GetProcAddress ) { | |
| 1348 if ( video->gl_config.driver_loaded ) { | |
| 1349 func = video->GL_GetProcAddress(this, proc); | |
| 1350 } else { | |
| 1351 SDL_SetError("No GL driver has been loaded"); | |
| 1352 } | |
| 1353 } else { | |
| 1354 SDL_SetError("No dynamic GL support in video driver"); | |
| 1355 } | |
| 1356 return func; | |
| 1357 } | |
| 1358 | |
| 1359 /* Set the specified GL attribute for setting up a GL video mode */ | |
| 1360 int SDL_GL_SetAttribute( SDL_GLattr attr, int value ) | |
| 1361 { | |
| 1362 int retval; | |
| 1363 SDL_VideoDevice *video = current_video; | |
| 1364 | |
| 1365 retval = 0; | |
| 1366 switch (attr) { | |
| 1367 case SDL_GL_RED_SIZE: | |
| 1368 video->gl_config.red_size = value; | |
| 1369 break; | |
| 1370 case SDL_GL_GREEN_SIZE: | |
| 1371 video->gl_config.green_size = value; | |
| 1372 break; | |
| 1373 case SDL_GL_BLUE_SIZE: | |
| 1374 video->gl_config.blue_size = value; | |
| 1375 break; | |
| 1376 case SDL_GL_ALPHA_SIZE: | |
| 1377 video->gl_config.alpha_size = value; | |
| 1378 break; | |
| 1379 case SDL_GL_DOUBLEBUFFER: | |
| 1380 video->gl_config.double_buffer = value; | |
| 1381 break; | |
|
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Date: Sun, 27 Jul 2003 22:37:59 +0200
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|
1382 case SDL_GL_BUFFER_SIZE: |
|
66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
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diff
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|
1383 video->gl_config.buffer_size = value; |
| 0 | 1384 break; |
| 1385 case SDL_GL_DEPTH_SIZE: | |
| 1386 video->gl_config.depth_size = value; | |
| 1387 break; | |
| 1388 case SDL_GL_STENCIL_SIZE: | |
| 1389 video->gl_config.stencil_size = value; | |
| 1390 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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parents:
433
diff
changeset
|
1391 case SDL_GL_ACCUM_RED_SIZE: |
| 0 | 1392 video->gl_config.accum_red_size = value; |
| 1393 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
1394 case SDL_GL_ACCUM_GREEN_SIZE: |
| 0 | 1395 video->gl_config.accum_green_size = value; |
| 1396 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1397 case SDL_GL_ACCUM_BLUE_SIZE: |
| 0 | 1398 video->gl_config.accum_blue_size = value; |
| 1399 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1400 case SDL_GL_ACCUM_ALPHA_SIZE: |
| 0 | 1401 video->gl_config.accum_alpha_size = value; |
| 1402 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
433
diff
changeset
|
1403 case SDL_GL_STEREO: |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
1404 video->gl_config.stereo = value; |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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parents:
433
diff
changeset
|
1405 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
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changeset
|
1406 case SDL_GL_MULTISAMPLEBUFFERS: |
|
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
1407 video->gl_config.multisamplebuffers = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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parents:
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diff
changeset
|
1408 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
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changeset
|
1409 case SDL_GL_MULTISAMPLESAMPLES: |
|
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
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655
diff
changeset
|
1410 video->gl_config.multisamplesamples = value; |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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parents:
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diff
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|
1411 break; |
| 1656 | 1412 case SDL_GL_ACCELERATED_VISUAL: |
| 1413 video->gl_config.accelerated = value; | |
| 1414 break; | |
| 1415 case SDL_GL_SWAP_CONTROL: | |
| 1416 video->gl_config.swap_control = value; | |
| 1417 break; | |
| 0 | 1418 default: |
| 1419 SDL_SetError("Unknown OpenGL attribute"); | |
| 1420 retval = -1; | |
| 1421 break; | |
| 1422 } | |
| 1423 return(retval); | |
| 1424 } | |
| 1425 | |
| 1426 /* Retrieve an attribute value from the windowing system. */ | |
| 1427 int SDL_GL_GetAttribute(SDL_GLattr attr, int* value) | |
| 1428 { | |
| 1429 int retval = -1; | |
| 1430 SDL_VideoDevice* video = current_video; | |
| 1431 SDL_VideoDevice* this = current_video; | |
| 1432 | |
| 1433 if ( video->GL_GetAttribute ) { | |
| 1434 retval = this->GL_GetAttribute(this, attr, value); | |
|
11
7b94b6379341
*** empty log message ***
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parents:
7
diff
changeset
|
1435 } else { |
|
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1436 *value = 0; |
|
7b94b6379341
*** empty log message ***
Sam Lantinga <slouken@lokigames.com>
parents:
7
diff
changeset
|
1437 SDL_SetError("GL_GetAttribute not supported"); |
| 0 | 1438 } |
| 1439 return retval; | |
| 1440 } | |
| 1441 | |
| 1442 /* Perform a GL buffer swap on the current GL context */ | |
| 1443 void SDL_GL_SwapBuffers(void) | |
| 1444 { | |
| 1445 SDL_VideoDevice *video = current_video; | |
| 1446 SDL_VideoDevice *this = current_video; | |
| 1447 | |
| 1658 | 1448 if ( video->screen->flags & SDL_INTERNALOPENGL ) { |
|
266
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Added QNX cleanups by Mike Gorchak (thanks!)
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|
1449 video->GL_SwapBuffers(this); |
|
c6abdda2f666
Added QNX cleanups by Mike Gorchak (thanks!)
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|
1450 } else { |
|
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1451 SDL_SetError("OpenGL video mode has not been set"); |
| 0 | 1452 } |
| 1453 } | |
| 1454 | |
| 1455 /* | |
| 1456 * Sets/Gets the title and icon text of the display window, if any. | |
| 1457 */ | |
| 1458 void SDL_WM_SetCaption (const char *title, const char *icon) | |
| 1459 { | |
| 1460 SDL_VideoDevice *video = current_video; | |
| 1461 SDL_VideoDevice *this = current_video; | |
| 1462 | |
|
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1463 if ( video ) { |
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1464 if ( title ) { |
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1465 if ( video->wm_title ) { |
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1466 SDL_free(video->wm_title); |
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1467 } |
|
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1468 video->wm_title = SDL_strdup(title); |
| 0 | 1469 } |
|
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1470 if ( icon ) { |
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1471 if ( video->wm_icon ) { |
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1472 SDL_free(video->wm_icon); |
|
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1473 } |
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1474 video->wm_icon = SDL_strdup(icon); |
| 0 | 1475 } |
|
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1476 if ( (title || icon) && (video->SetCaption != NULL) ) { |
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1477 video->SetCaption(this, video->wm_title,video->wm_icon); |
| 0 | 1478 } |
| 1479 } | |
| 1480 } | |
| 1481 void SDL_WM_GetCaption (char **title, char **icon) | |
| 1482 { | |
|
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1483 SDL_VideoDevice *video = current_video; |
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1484 |
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1485 if ( video ) { |
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1486 if ( title ) { |
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1487 *title = video->wm_title; |
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1488 } |
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1489 if ( icon ) { |
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1490 *icon = video->wm_icon; |
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1491 } |
| 0 | 1492 } |
| 1493 } | |
| 1494 | |
|
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1495 /* Utility function used by SDL_WM_SetIcon(); |
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1496 * flags & 1 for color key, flags & 2 for alpha channel. */ |
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1497 static void CreateMaskFromColorKeyOrAlpha(SDL_Surface *icon, Uint8 *mask, int flags) |
| 0 | 1498 { |
| 1499 int x, y; | |
| 1500 Uint32 colorkey; | |
| 1501 #define SET_MASKBIT(icon, x, y, mask) \ | |
| 1502 mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8))) | |
| 1503 | |
| 1504 colorkey = icon->format->colorkey; | |
| 1505 switch (icon->format->BytesPerPixel) { | |
| 1506 case 1: { Uint8 *pixels; | |
| 1507 for ( y=0; y<icon->h; ++y ) { | |
| 1508 pixels = (Uint8 *)icon->pixels + y*icon->pitch; | |
| 1509 for ( x=0; x<icon->w; ++x ) { | |
| 1510 if ( *pixels++ == colorkey ) { | |
| 1511 SET_MASKBIT(icon, x, y, mask); | |
| 1512 } | |
| 1513 } | |
| 1514 } | |
| 1515 } | |
| 1516 break; | |
| 1517 | |
| 1518 case 2: { Uint16 *pixels; | |
| 1519 for ( y=0; y<icon->h; ++y ) { | |
| 1520 pixels = (Uint16 *)icon->pixels + | |
| 1521 y*icon->pitch/2; | |
| 1522 for ( x=0; x<icon->w; ++x ) { | |
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1523 if ( (flags & 1) && *pixels == colorkey ) { |
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1524 SET_MASKBIT(icon, x, y, mask); |
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1525 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1526 SET_MASKBIT(icon, x, y, mask); |
| 1527 } | |
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1528 pixels++; |
| 0 | 1529 } |
| 1530 } | |
| 1531 } | |
| 1532 break; | |
| 1533 | |
| 1534 case 4: { Uint32 *pixels; | |
| 1535 for ( y=0; y<icon->h; ++y ) { | |
| 1536 pixels = (Uint32 *)icon->pixels + | |
| 1537 y*icon->pitch/4; | |
| 1538 for ( x=0; x<icon->w; ++x ) { | |
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1539 if ( (flags & 1) && *pixels == colorkey ) { |
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1540 SET_MASKBIT(icon, x, y, mask); |
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1541 } else if((flags & 2) && (*pixels & icon->format->Amask) == 0) { |
| 0 | 1542 SET_MASKBIT(icon, x, y, mask); |
| 1543 } | |
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1544 pixels++; |
| 0 | 1545 } |
| 1546 } | |
| 1547 } | |
| 1548 break; | |
| 1549 } | |
| 1550 } | |
| 1551 | |
| 1552 /* | |
| 1553 * Sets the window manager icon for the display window. | |
| 1554 */ | |
| 1555 void SDL_WM_SetIcon (SDL_Surface *icon, Uint8 *mask) | |
| 1556 { | |
| 1557 SDL_VideoDevice *video = current_video; | |
| 1558 SDL_VideoDevice *this = current_video; | |
| 1559 | |
| 1560 if ( icon && video->SetIcon ) { | |
| 1561 /* Generate a mask if necessary, and create the icon! */ | |
| 1562 if ( mask == NULL ) { | |
| 1563 int mask_len = icon->h*(icon->w+7)/8; | |
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1564 int flags = 0; |
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1565 mask = (Uint8 *)SDL_malloc(mask_len); |
| 0 | 1566 if ( mask == NULL ) { |
| 1567 return; | |
| 1568 } | |
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1569 SDL_memset(mask, ~0, mask_len); |
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1570 if ( icon->flags & SDL_SRCCOLORKEY ) flags |= 1; |
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1571 if ( icon->flags & SDL_SRCALPHA ) flags |= 2; |
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1572 if( flags ) { |
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1573 CreateMaskFromColorKeyOrAlpha(icon, mask, flags); |
| 0 | 1574 } |
| 1575 video->SetIcon(video, icon, mask); | |
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1576 SDL_free(mask); |
| 0 | 1577 } else { |
| 1578 video->SetIcon(this, icon, mask); | |
| 1579 } | |
| 1580 } | |
| 1581 } | |
| 1582 | |
| 1583 /* | |
| 1584 * Grab or ungrab the keyboard and mouse input. | |
| 1585 * This function returns the final grab mode after calling the | |
| 1586 * driver dependent function. | |
| 1587 */ | |
| 1588 static SDL_GrabMode SDL_WM_GrabInputRaw(SDL_GrabMode mode) | |
| 1589 { | |
| 1590 SDL_VideoDevice *video = current_video; | |
| 1591 SDL_VideoDevice *this = current_video; | |
| 1592 | |
| 1593 /* Only do something if we have support for grabs */ | |
| 1594 if ( video->GrabInput == NULL ) { | |
| 1595 return(video->input_grab); | |
| 1596 } | |
| 1597 | |
| 1598 /* If the final grab mode if off, only then do we actually grab */ | |
| 1599 #ifdef DEBUG_GRAB | |
| 1600 printf("SDL_WM_GrabInputRaw(%d) ... ", mode); | |
| 1601 #endif | |
| 1602 if ( mode == SDL_GRAB_OFF ) { | |
| 1603 if ( video->input_grab != SDL_GRAB_OFF ) { | |
| 1604 mode = video->GrabInput(this, mode); | |
| 1605 } | |
| 1606 } else { | |
| 1607 if ( video->input_grab == SDL_GRAB_OFF ) { | |
| 1608 mode = video->GrabInput(this, mode); | |
| 1609 } | |
| 1610 } | |
| 1611 if ( mode != video->input_grab ) { | |
| 1612 video->input_grab = mode; | |
| 1613 if ( video->CheckMouseMode ) { | |
| 1614 video->CheckMouseMode(this); | |
| 1615 } | |
| 1616 } | |
| 1617 #ifdef DEBUG_GRAB | |
| 1618 printf("Final mode %d\n", video->input_grab); | |
| 1619 #endif | |
| 1620 | |
| 1621 /* Return the final grab state */ | |
| 1622 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1623 mode -= SDL_GRAB_FULLSCREEN; | |
| 1624 } | |
| 1625 return(mode); | |
| 1626 } | |
| 1627 SDL_GrabMode SDL_WM_GrabInput(SDL_GrabMode mode) | |
| 1628 { | |
| 1629 SDL_VideoDevice *video = current_video; | |
| 1630 | |
|
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1631 /* If the video isn't initialized yet, we can't do anything */ |
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1632 if ( ! video ) { |
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1633 return SDL_GRAB_OFF; |
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1634 } |
| 0 | 1635 |
| 1636 /* Return the current mode on query */ | |
| 1637 if ( mode == SDL_GRAB_QUERY ) { | |
| 1638 mode = video->input_grab; | |
| 1639 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1640 mode -= SDL_GRAB_FULLSCREEN; | |
| 1641 } | |
| 1642 return(mode); | |
| 1643 } | |
| 1644 | |
| 1645 #ifdef DEBUG_GRAB | |
| 1646 printf("SDL_WM_GrabInput(%d) ... ", mode); | |
| 1647 #endif | |
| 1648 /* If the video surface is fullscreen, we always grab */ | |
| 1649 if ( mode >= SDL_GRAB_FULLSCREEN ) { | |
| 1650 mode -= SDL_GRAB_FULLSCREEN; | |
| 1651 } | |
| 1652 if ( SDL_VideoSurface && (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { | |
| 1653 mode += SDL_GRAB_FULLSCREEN; | |
| 1654 } | |
| 1655 return(SDL_WM_GrabInputRaw(mode)); | |
| 1656 } | |
| 1657 static SDL_GrabMode SDL_WM_GrabInputOff(void) | |
| 1658 { | |
| 1659 SDL_GrabMode mode; | |
| 1660 | |
| 1661 /* First query the current grab state */ | |
| 1662 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 1663 | |
| 1664 /* Now explicitly turn off input grab */ | |
| 1665 SDL_WM_GrabInputRaw(SDL_GRAB_OFF); | |
| 1666 | |
| 1667 /* Return the old state */ | |
| 1668 return(mode); | |
| 1669 } | |
| 1670 | |
| 1671 /* | |
| 1672 * Iconify the window in window managed environments. | |
| 1673 * A successful iconification will result in an SDL_APPACTIVE loss event. | |
| 1674 */ | |
| 1675 int SDL_WM_IconifyWindow(void) | |
| 1676 { | |
| 1677 SDL_VideoDevice *video = current_video; | |
| 1678 SDL_VideoDevice *this = current_video; | |
| 1679 int retval; | |
| 1680 | |
| 1681 retval = 0; | |
| 1682 if ( video->IconifyWindow ) { | |
| 1683 retval = video->IconifyWindow(this); | |
| 1684 } | |
| 1685 return(retval); | |
| 1686 } | |
| 1687 | |
| 1688 /* | |
| 1689 * Toggle fullscreen mode | |
| 1690 */ | |
| 1691 int SDL_WM_ToggleFullScreen(SDL_Surface *surface) | |
| 1692 { | |
| 1693 SDL_VideoDevice *video = current_video; | |
| 1694 SDL_VideoDevice *this = current_video; | |
| 1695 int toggled; | |
| 1696 | |
| 1697 toggled = 0; | |
| 1698 if ( SDL_PublicSurface && (surface == SDL_PublicSurface) && | |
| 1699 video->ToggleFullScreen ) { | |
| 1700 if ( surface->flags & SDL_FULLSCREEN ) { | |
| 1701 toggled = video->ToggleFullScreen(this, 0); | |
| 1702 if ( toggled ) { | |
| 1703 SDL_VideoSurface->flags &= ~SDL_FULLSCREEN; | |
| 1704 SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; | |
| 1705 } | |
| 1706 } else { | |
| 1707 toggled = video->ToggleFullScreen(this, 1); | |
| 1708 if ( toggled ) { | |
| 1709 SDL_VideoSurface->flags |= SDL_FULLSCREEN; | |
| 1710 SDL_PublicSurface->flags |= SDL_FULLSCREEN; | |
| 1711 } | |
| 1712 } | |
| 1713 /* Double-check the grab state inside SDL_WM_GrabInput() */ | |
| 1714 if ( toggled ) { | |
| 1715 SDL_WM_GrabInput(video->input_grab); | |
| 1716 } | |
| 1717 } | |
| 1718 return(toggled); | |
| 1719 } | |
| 1720 | |
| 1721 /* | |
| 1722 * Get some platform dependent window manager information | |
| 1723 */ | |
| 1724 int SDL_GetWMInfo (SDL_SysWMinfo *info) | |
| 1725 { | |
| 1726 SDL_VideoDevice *video = current_video; | |
| 1727 SDL_VideoDevice *this = current_video; | |
| 1728 | |
| 1729 if ( video && video->GetWMInfo ) { | |
| 1730 return(video->GetWMInfo(this, info)); | |
| 1731 } else { | |
| 1732 return(0); | |
| 1733 } | |
| 1734 } |