| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 Sam Lantinga |
| 4 | |
| 5 | This library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | This library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with this library; if not, write to the Free Software |
| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | Sam Lantinga |
| 20 | slouken@libsdl.org |
| 21 | */ |
| 22 | #include "SDL_config.h" |
| 23 | |
| 24 | #include "SDL_ph_modes_c.h" |
| 25 | |
| 26 | static PgVideoModeInfo_t mode_info; |
| 27 | static PgVideoModes_t mode_list; |
| 28 | |
| 29 | /* The current list of available video modes */ |
| 30 | SDL_Rect SDL_modelist[PH_MAX_VIDEOMODES]; |
| 31 | SDL_Rect* SDL_modearray[PH_MAX_VIDEOMODES]; |
| 32 | |
| 33 | static int compare_modes_by_res(const void* mode1, const void* mode2) |
| 34 | { |
| 35 | PgVideoModeInfo_t mode1_info; |
| 36 | PgVideoModeInfo_t mode2_info; |
| 37 | |
| 38 | if (PgGetVideoModeInfo(*(unsigned short*)mode1, &mode1_info) < 0) |
| 39 | { |
| 40 | return 0; |
| 41 | } |
| 42 | |
| 43 | if (PgGetVideoModeInfo(*(unsigned short*)mode2, &mode2_info) < 0) |
| 44 | { |
| 45 | return 0; |
| 46 | } |
| 47 | |
| 48 | if (mode1_info.width == mode2_info.width) |
| 49 | { |
| 50 | return mode2_info.height - mode1_info.height; |
| 51 | } |
| 52 | else |
| 53 | { |
| 54 | return mode2_info.width - mode1_info.width; |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | SDL_Rect **ph_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) |
| 59 | { |
| 60 | int i = 0; |
| 61 | int j = 0; |
| 62 | SDL_Rect Amodelist[PH_MAX_VIDEOMODES]; |
| 63 | |
| 64 | for (i=0; i<PH_MAX_VIDEOMODES; i++) |
| 65 | { |
| 66 | SDL_modearray[i]=&SDL_modelist[i]; |
| 67 | } |
| 68 | |
| 69 | if (PgGetVideoModeList(&mode_list) < 0) |
| 70 | { |
| 71 | SDL_SetError("ph_ListModes(): PgGetVideoModeList() function failed !\n"); |
| 72 | return NULL; |
| 73 | } |
| 74 | |
| 75 | mode_info.bits_per_pixel = 0; |
| 76 | |
| 77 | for (i=0; i < mode_list.num_modes; i++) |
| 78 | { |
| 79 | if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0) |
| 80 | { |
| 81 | SDL_SetError("ph_ListModes(): PgGetVideoModeInfo() function failed on mode: 0x%X.\n", mode_list.modes[i]); |
| 82 | return NULL; |
| 83 | } |
| 84 | if(mode_info.bits_per_pixel == format->BitsPerPixel) |
| 85 | { |
| 86 | Amodelist[j].w = mode_info.width; |
| 87 | Amodelist[j].h = mode_info.height; |
| 88 | Amodelist[j].x = 0; |
| 89 | Amodelist[j].y = 0; |
| 90 | j++; |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | /* reorder biggest for smallest, assume width dominates */ |
| 95 | |
| 96 | for(i=0; i<j; i++) |
| 97 | { |
| 98 | SDL_modelist[i].w = Amodelist[j - i - 1].w; |
| 99 | SDL_modelist[i].h = Amodelist[j - i - 1].h; |
| 100 | SDL_modelist[i].x = Amodelist[j - i - 1].x; |
| 101 | SDL_modelist[i].y = Amodelist[j - i - 1].y; |
| 102 | } |
| 103 | SDL_modearray[j]=NULL; |
| 104 | |
| 105 | return SDL_modearray; |
| 106 | } |
| 107 | |
| 108 | void ph_FreeVideoModes(_THIS) |
| 109 | { |
| 110 | return; |
| 111 | } |
| 112 | |
| 113 | /* return the mode associated with width, height and bpp */ |
| 114 | /* if there is no mode then zero is returned */ |
| 115 | int ph_GetVideoMode(int width, int height, int bpp) |
| 116 | { |
| 117 | int i; |
| 118 | int modestage=0; |
| 119 | int closestmode=0; |
| 120 | |
| 121 | if (PgGetVideoModeList(&mode_list) < 0) |
| 122 | { |
| 123 | return -1; |
| 124 | } |
| 125 | |
| 126 | /* special case for the double-sized 320x200 mode */ |
| 127 | if ((width==640) && (height==400)) |
| 128 | { |
| 129 | modestage=1; |
| 130 | } |
| 131 | |
| 132 | /* search list for exact match */ |
| 133 | for (i=0; i<mode_list.num_modes; i++) |
| 134 | { |
| 135 | if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0) |
| 136 | { |
| 137 | return 0; |
| 138 | } |
| 139 | |
| 140 | if ((mode_info.width == width) && (mode_info.height == height) && |
| 141 | (mode_info.bits_per_pixel == bpp)) |
| 142 | { |
| 143 | return mode_list.modes[i]; |
| 144 | } |
| 145 | else |
| 146 | { |
| 147 | if ((modestage) && (mode_info.width == width) && (mode_info.height == height+80) && |
| 148 | (mode_info.bits_per_pixel == bpp)) |
| 149 | { |
| 150 | modestage=2; |
| 151 | closestmode=mode_list.modes[i]; |
| 152 | } |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | /* if we are here, then no 640x400xbpp mode found and we'll emulate it via 640x480xbpp mode */ |
| 157 | if (modestage==2) |
| 158 | { |
| 159 | return closestmode; |
| 160 | } |
| 161 | |
| 162 | return (i == mode_list.num_modes) ? 0 : mode_list.modes[i]; |
| 163 | } |
| 164 | |
| 165 | /* return the mode associated with width, height and bpp */ |
| 166 | /* if requested bpp is not found the mode with closest bpp is returned */ |
| 167 | int get_mode_any_format(int width, int height, int bpp) |
| 168 | { |
| 169 | int i, closest, delta, min_delta; |
| 170 | |
| 171 | if (PgGetVideoModeList(&mode_list) < 0) |
| 172 | { |
| 173 | return -1; |
| 174 | } |
| 175 | |
| 176 | SDL_qsort(mode_list.modes, mode_list.num_modes, sizeof(unsigned short), compare_modes_by_res); |
| 177 | |
| 178 | for(i=0;i<mode_list.num_modes;i++) |
| 179 | { |
| 180 | if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0) |
| 181 | { |
| 182 | return 0; |
| 183 | } |
| 184 | if ((mode_info.width == width) && (mode_info.height == height)) |
| 185 | { |
| 186 | break; |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | if (i<mode_list.num_modes) |
| 191 | { |
| 192 | /* get closest bpp */ |
| 193 | closest = i++; |
| 194 | if (mode_info.bits_per_pixel == bpp) |
| 195 | { |
| 196 | return mode_list.modes[closest]; |
| 197 | } |
| 198 | |
| 199 | min_delta = abs(mode_info.bits_per_pixel - bpp); |
| 200 | |
| 201 | while(1) |
| 202 | { |
| 203 | if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0) |
| 204 | { |
| 205 | return 0; |
| 206 | } |
| 207 | |
| 208 | if ((mode_info.width != width) || (mode_info.height != height)) |
| 209 | { |
| 210 | break; |
| 211 | } |
| 212 | else |
| 213 | { |
| 214 | if (mode_info.bits_per_pixel == bpp) |
| 215 | { |
| 216 | closest = i; |
| 217 | break; |
| 218 | } |
| 219 | else |
| 220 | { |
| 221 | delta = abs(mode_info.bits_per_pixel - bpp); |
| 222 | if (delta < min_delta) |
| 223 | { |
| 224 | closest = i; |
| 225 | min_delta = delta; |
| 226 | } |
| 227 | i++; |
| 228 | } |
| 229 | } |
| 230 | } |
| 231 | return mode_list.modes[closest]; |
| 232 | } |
| 233 | |
| 234 | return 0; |
| 235 | } |
| 236 | |
| 237 | int ph_ToggleFullScreen(_THIS, int on) |
| 238 | { |
| 239 | return -1; |
| 240 | } |
| 241 | |
| 242 | int ph_EnterFullScreen(_THIS, SDL_Surface* screen, int fmode) |
| 243 | { |
| 244 | PgDisplaySettings_t settings; |
| 245 | int mode; |
| 246 | char* refreshrate; |
| 247 | int refreshratenum; |
| 248 | |
| 249 | if (!currently_fullscreen) |
| 250 | { |
| 251 | /* Get the video mode and set it */ |
| 252 | if (screen->flags & SDL_ANYFORMAT) |
| 253 | { |
| 254 | if ((mode = get_mode_any_format(screen->w, screen->h, screen->format->BitsPerPixel)) == 0) |
| 255 | { |
| 256 | SDL_SetError("ph_EnterFullScreen(): can't find appropriate video mode !\n"); |
| 257 | return 0; |
| 258 | } |
| 259 | } |
| 260 | else |
| 261 | { |
| 262 | if ((mode = ph_GetVideoMode(screen->w, screen->h, screen->format->BitsPerPixel)) == 0) |
| 263 | { |
| 264 | SDL_SetError("ph_EnterFullScreen(): can't find appropriate video mode !\n"); |
| 265 | return 0; |
| 266 | } |
| 267 | if (PgGetVideoModeInfo(mode, &mode_info) < 0) |
| 268 | { |
| 269 | SDL_SetError("ph_EnterFullScreen(): can't get video mode capabilities !\n"); |
| 270 | return 0; |
| 271 | } |
| 272 | if (mode_info.height != screen->h) |
| 273 | { |
| 274 | if ((mode_info.height==480) && (screen->h==400)) |
| 275 | { |
| 276 | videomode_emulatemode=1; |
| 277 | } |
| 278 | } |
| 279 | else |
| 280 | { |
| 281 | videomode_emulatemode=0; |
| 282 | } |
| 283 | } |
| 284 | |
| 285 | /* save old video mode caps */ |
| 286 | PgGetVideoMode(&settings); |
| 287 | old_video_mode=settings.mode; |
| 288 | old_refresh_rate=settings.refresh; |
| 289 | |
| 290 | /* setup new video mode */ |
| 291 | settings.mode = mode; |
| 292 | settings.refresh = 0; |
| 293 | settings.flags = 0; |
| 294 | |
| 295 | refreshrate=SDL_getenv("SDL_PHOTON_FULLSCREEN_REFRESH"); |
| 296 | if (refreshrate!=NULL) |
| 297 | { |
| 298 | if (SDL_sscanf(refreshrate, "%d", &refreshratenum)==1) |
| 299 | { |
| 300 | settings.refresh = refreshratenum; |
| 301 | } |
| 302 | } |
| 303 | |
| 304 | if (PgSetVideoMode(&settings) < 0) |
| 305 | { |
| 306 | SDL_SetError("ph_EnterFullScreen(): PgSetVideoMode() call failed !\n"); |
| 307 | return 0; |
| 308 | } |
| 309 | |
| 310 | if (this->screen) |
| 311 | { |
| 312 | if ((this->screen->flags & SDL_OPENGL)==SDL_OPENGL) |
| 313 | { |
| 314 | #if !SDL_VIDEO_OPENGL || (_NTO_VERSION < 630) |
| 315 | return 0; /* 6.3.0 */ |
| 316 | #endif |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | if (fmode==0) |
| 321 | { |
| 322 | if (OCImage.direct_context==NULL) |
| 323 | { |
| 324 | OCImage.direct_context=(PdDirectContext_t*)PdCreateDirectContext(); |
| 325 | if (!OCImage.direct_context) |
| 326 | { |
| 327 | SDL_SetError("ph_EnterFullScreen(): Can't create direct context !\n"); |
| 328 | ph_LeaveFullScreen(this); |
| 329 | return 0; |
| 330 | } |
| 331 | } |
| 332 | OCImage.oldDC=PdDirectStart(OCImage.direct_context); |
| 333 | } |
| 334 | |
| 335 | currently_fullscreen = 1; |
| 336 | } |
| 337 | PgFlush(); |
| 338 | |
| 339 | return 1; |
| 340 | } |
| 341 | |
| 342 | int ph_LeaveFullScreen(_THIS) |
| 343 | { |
| 344 | PgDisplaySettings_t oldmode_settings; |
| 345 | |
| 346 | if (currently_fullscreen) |
| 347 | { |
| 348 | if ((this->screen) && ((this->screen->flags & SDL_OPENGL)==SDL_OPENGL)) |
| 349 | { |
| 350 | #if !SDL_VIDEO_OPENGL || (_NTO_VERSION < 630) |
| 351 | return 0; |
| 352 | #endif |
| 353 | } |
| 354 | |
| 355 | /* release routines starts here */ |
| 356 | { |
| 357 | if (OCImage.direct_context) |
| 358 | { |
| 359 | PdDirectStop(OCImage.direct_context); |
| 360 | PdReleaseDirectContext(OCImage.direct_context); |
| 361 | OCImage.direct_context=NULL; |
| 362 | } |
| 363 | if (OCImage.oldDC) |
| 364 | { |
| 365 | PhDCSetCurrent(OCImage.oldDC); |
| 366 | OCImage.oldDC=NULL; |
| 367 | } |
| 368 | |
| 369 | currently_fullscreen=0; |
| 370 | |
| 371 | /* Restore old video mode */ |
| 372 | if (old_video_mode != -1) |
| 373 | { |
| 374 | oldmode_settings.mode = (unsigned short) old_video_mode; |
| 375 | oldmode_settings.refresh = (unsigned short) old_refresh_rate; |
| 376 | oldmode_settings.flags = 0; |
| 377 | |
| 378 | if (PgSetVideoMode(&oldmode_settings) < 0) |
| 379 | { |
| 380 | SDL_SetError("Ph_LeaveFullScreen(): PgSetVideoMode() function failed !\n"); |
| 381 | return 0; |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | old_video_mode=-1; |
| 386 | old_refresh_rate=-1; |
| 387 | } |
| 388 | } |
| 389 | return 1; |
| 390 | } |