1 /* 2 * Copyright 2007-2011, Axel Dörfler, axeld@pinc-software.de. 3 * Distributed under the terms of the MIT License. 4 */ 5 6 7 #include <create_display_modes.h> 8 9 #include <math.h> 10 #include <stdlib.h> 11 #include <string.h> 12 13 #include <compute_display_timing.h> 14 #include <video_overlay.h> 15 16 17 #define POSITIVE_SYNC \ 18 (B_POSITIVE_HSYNC | B_POSITIVE_VSYNC) 19 #define MODE_FLAGS \ 20 (B_8_BIT_DAC | B_HARDWARE_CURSOR | B_PARALLEL_ACCESS | B_DPMS \ 21 | B_SUPPORTS_OVERLAYS) 22 23 // TODO: move this list into the app_server 24 static const display_mode kBaseModeList[] = { 25 {{25175, 640, 656, 752, 800, 350, 387, 389, 449, B_POSITIVE_HSYNC}, B_CMAP8, 640, 350, 0, 0, MODE_FLAGS}, /* 640x350 - www.epanorama.net/documents/pc/vga_timing.html) */ 26 27 {{25175, 640, 656, 752, 800, 400, 412, 414, 449, B_POSITIVE_VSYNC}, B_CMAP8, 640, 400, 0, 0, MODE_FLAGS}, /* 640x400 - www.epanorama.net/documents/pc/vga_timing.html) */ 28 29 {{25175, 640, 656, 752, 800, 480, 490, 492, 525, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(640X480X8.Z1) */ 30 {{31500, 640, 664, 704, 832, 480, 489, 492, 520, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@70-72Hz_(640X480X8.Z1) */ 31 {{31500, 640, 656, 720, 840, 480, 481, 484, 500, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(640X480X8.Z1) */ 32 {{36000, 640, 696, 752, 832, 480, 481, 484, 509, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@85Hz_(640X480X8.Z1) */ 33 34 {{29580, 800, 816, 896, 992, 480, 481, 484, 497, B_POSITIVE_VSYNC}, B_CMAP8, 800, 480, 0, 0, MODE_FLAGS}, /* 800x480x60Hz */ 35 36 {{38100, 800, 832, 960, 1088, 600, 602, 606, 620, 0}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS}, /* SVGA_800X600X56HzNI */ 37 {{40000, 800, 840, 968, 1056, 600, 601, 605, 628, POSITIVE_SYNC}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(800X600X8.Z1) */ 38 {{49500, 800, 816, 896, 1056, 600, 601, 604, 625, POSITIVE_SYNC}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(800X600X8.Z1) */ 39 {{50000, 800, 856, 976, 1040, 600, 637, 643, 666, POSITIVE_SYNC}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@70-72Hz_(800X600X8.Z1) */ 40 {{56250, 800, 832, 896, 1048, 600, 601, 604, 631, POSITIVE_SYNC}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@85Hz_(800X600X8.Z1) */ 41 42 {{65000, 1024, 1048, 1184, 1344, 768, 771, 777, 806, 0}, B_CMAP8, 1024, 768, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1024X768X8.Z1) */ 43 {{75000, 1024, 1048, 1184, 1328, 768, 771, 777, 806, 0}, B_CMAP8, 1024, 768, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@70-72Hz_(1024X768X8.Z1) */ 44 {{78750, 1024, 1040, 1136, 1312, 768, 769, 772, 800, POSITIVE_SYNC}, B_CMAP8, 1024, 768, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(1024X768X8.Z1) */ 45 {{94500, 1024, 1072, 1168, 1376, 768, 769, 772, 808, POSITIVE_SYNC}, B_CMAP8, 1024, 768, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@85Hz_(1024X768X8.Z1) */ 46 47 {{81640, 1152, 1216, 1336, 1520, 864, 865, 868, 895, POSITIVE_SYNC}, B_CMAP8, 1152, 864, 0, 0, MODE_FLAGS}, /* 1152x864x60Hz */ 48 {{94200, 1152, 1184, 1280, 1472, 864, 865, 868, 914, POSITIVE_SYNC}, B_CMAP8, 1152, 864, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@70Hz_(1152X864X8.Z1) */ 49 {{108000, 1152, 1216, 1344, 1600, 864, 865, 868, 900, POSITIVE_SYNC}, B_CMAP8, 1152, 864, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(1152X864X8.Z1) */ 50 {{121500, 1152, 1216, 1344, 1568, 864, 865, 868, 911, POSITIVE_SYNC}, B_CMAP8, 1152, 864, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@85Hz_(1152X864X8.Z1) */ 51 52 {{74520, 1280, 1368, 1424, 1656, 720, 724, 730, 750, POSITIVE_SYNC}, B_CMAP8, 1280, 720, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1280X720) */ 53 54 {{83460, 1280, 1344, 1480, 1680, 800, 801, 804, 828, B_POSITIVE_VSYNC}, B_CMAP8, 1280, 800, 0, 0, MODE_FLAGS}, /* WXGA (1280x800x60) */ 55 56 {{108000, 1280, 1328, 1440, 1688, 1024, 1025, 1028, 1066, POSITIVE_SYNC}, B_CMAP8, 1280, 1024, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1280X1024X8.Z1) */ 57 {{135000, 1280, 1296, 1440, 1688, 1024, 1025, 1028, 1066, POSITIVE_SYNC}, B_CMAP8, 1280, 1024, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(1280X1024X8.Z1) */ 58 {{157500, 1280, 1344, 1504, 1728, 1024, 1025, 1028, 1072, POSITIVE_SYNC}, B_CMAP8, 1280, 1024, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@85Hz_(1280X1024X8.Z1) */ 59 60 {{122600, 1400, 1488, 1640, 1880, 1050, 1051, 1054, 1087, POSITIVE_SYNC}, B_CMAP8, 1400, 1050, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1400X1050) */ 61 {{155800, 1400, 1464, 1784, 1912, 1050, 1052, 1064, 1090, POSITIVE_SYNC}, B_CMAP8, 1400, 1050, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(1400X1050) */ 62 63 {{106500, 1440, 1520, 1672, 1904, 900, 901, 904, 932, POSITIVE_SYNC}, B_CMAP8, 1440, 900, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1440X900) */ 64 65 {{162000, 1600, 1664, 1856, 2160, 1200, 1201, 1204, 1250, POSITIVE_SYNC}, B_CMAP8, 1600, 1200, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1600X1200X8.Z1) */ 66 {{175500, 1600, 1664, 1856, 2160, 1200, 1201, 1204, 1250, POSITIVE_SYNC}, B_CMAP8, 1600, 1200, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@65Hz_(1600X1200X8.Z1) */ 67 {{189000, 1600, 1664, 1856, 2160, 1200, 1201, 1204, 1250, POSITIVE_SYNC}, B_CMAP8, 1600, 1200, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@70Hz_(1600X1200X8.Z1) */ 68 {{202500, 1600, 1664, 1856, 2160, 1200, 1201, 1204, 1250, POSITIVE_SYNC}, B_CMAP8, 1600, 1200, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(1600X1200X8.Z1) */ 69 {{216000, 1600, 1664, 1856, 2160, 1200, 1201, 1204, 1250, POSITIVE_SYNC}, B_CMAP8, 1600, 1200, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@80Hz_(1600X1200X8.Z1) */ 70 {{229500, 1600, 1664, 1856, 2160, 1200, 1201, 1204, 1250, POSITIVE_SYNC}, B_CMAP8, 1600, 1200, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@85Hz_(1600X1200X8.Z1) */ 71 72 {{147100, 1680, 1784, 1968, 2256, 1050, 1051, 1054, 1087, POSITIVE_SYNC}, B_CMAP8, 1680, 1050, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1680X1050) */ 73 74 {{172000, 1920, 2040, 2248, 2576, 1080, 1081, 1084, 1118, POSITIVE_SYNC}, B_CMAP8, 1920, 1080, 0, 0, MODE_FLAGS}, /* 1920x1080 60Hz */ 75 //{{160000, 1920, 2010, 2060, 2110, 1200, 1202, 1208, 1235, POSITIVE_SYNC}, B_CMAP8, 1920, 1200, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1920X1200) */ 76 {{193160, 1920, 2048, 2256, 2592, 1200, 1201, 1204, 1242, POSITIVE_SYNC}, B_CMAP8, 1920, 1200, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1920X1200) */ 77 }; 78 static const uint32 kNumBaseModes = sizeof(kBaseModeList) / sizeof(display_mode); 79 80 81 namespace BPrivate { 82 83 class ModeList { 84 public: 85 ModeList(); 86 ~ModeList(); 87 88 bool AddModes(edid1_info* info); 89 bool AddModes(const display_mode* modes, 90 uint32 count); 91 92 bool CreateColorSpaces(const color_space* spaces, 93 uint32 count); 94 void Filter(check_display_mode_hook hook); 95 void Clean(); 96 97 const display_mode* Modes() const { return fModes; } 98 uint32 Count() const { return fCount; } 99 100 private: 101 bool _MakeSpace(uint32 count); 102 bool _AddMode(const display_mode& mode); 103 void _RemoveModeAt(uint32 index); 104 void _AddBaseMode(uint16 width, uint16 height, 105 uint32 refresh); 106 display_mode* _FindMode(uint16 width, uint16 height) const; 107 108 private: 109 display_mode* fModes; 110 uint32 fCount; 111 uint32 fCapacity; 112 }; 113 114 } // namespace BPrivate 115 116 using namespace BPrivate; 117 118 119 static float 120 get_refresh_rate(const display_mode& mode) 121 { 122 return float(mode.timing.pixel_clock * 1000) 123 / float(mode.timing.h_total * mode.timing.v_total); 124 } 125 126 127 static int 128 compare_mode(const void* _mode1, const void* _mode2) 129 { 130 display_mode *mode1 = (display_mode *)_mode1; 131 display_mode *mode2 = (display_mode *)_mode2; 132 uint16 width1, width2, height1, height2; 133 134 width1 = mode1->virtual_width; 135 height1 = mode1->virtual_height; 136 width2 = mode2->virtual_width; 137 height2 = mode2->virtual_height; 138 139 if (width1 != width2) 140 return width1 - width2; 141 142 if (height1 != height2) 143 return height1 - height2; 144 145 if (mode1->space != mode2->space) 146 return mode1->space - mode2->space; 147 148 return (int)(100 * (get_refresh_rate(*mode1) - get_refresh_rate(*mode2))); 149 } 150 151 152 // #pragma mark - 153 154 155 ModeList::ModeList() 156 : 157 fModes(NULL), 158 fCount(0), 159 fCapacity(0) 160 { 161 } 162 163 164 ModeList::~ModeList() 165 { 166 free(fModes); 167 } 168 169 170 bool 171 ModeList::AddModes(edid1_info* info) 172 { 173 if (info->established_timing.res_720x400x70) 174 _AddBaseMode(720, 400, 70); 175 if (info->established_timing.res_720x400x88) 176 _AddBaseMode(720, 400, 88); 177 178 if (info->established_timing.res_640x480x60) 179 _AddBaseMode(640, 480, 60); 180 if (info->established_timing.res_640x480x67) 181 _AddBaseMode(640, 480, 67); 182 if (info->established_timing.res_640x480x72) 183 _AddBaseMode(640, 480, 72); 184 if (info->established_timing.res_640x480x75) 185 _AddBaseMode(640, 480, 75); 186 187 if (info->established_timing.res_800x600x56) 188 _AddBaseMode(800, 600, 56); 189 if (info->established_timing.res_800x600x60) 190 _AddBaseMode(800, 600, 60); 191 if (info->established_timing.res_800x600x72) 192 _AddBaseMode(800, 600, 72); 193 if (info->established_timing.res_800x600x75) 194 _AddBaseMode(800, 600, 75); 195 196 #if 0 197 if (info->established_timing.res_832x624x75) 198 _AddBaseMode(832, 624, 75); 199 200 if (info->established_timing.res_1024x768x87i) 201 _AddBaseMode(1024, 768, 87); 202 #endif 203 if (info->established_timing.res_1024x768x60) 204 _AddBaseMode(1024, 768, 60); 205 if (info->established_timing.res_1024x768x70) 206 _AddBaseMode(1024, 768, 70); 207 if (info->established_timing.res_1024x768x75) 208 _AddBaseMode(1024, 768, 75); 209 210 if (info->established_timing.res_1152x870x75) 211 _AddBaseMode(1152, 870, 75); 212 if (info->established_timing.res_1280x1024x75) 213 _AddBaseMode(1280, 1024, 75); 214 215 for (uint32 i = 0; i < EDID1_NUM_STD_TIMING; ++i) { 216 if (info->std_timing[i].h_size <= 256) 217 continue; 218 219 _AddBaseMode(info->std_timing[i].h_size, info->std_timing[i].v_size, 220 info->std_timing[i].refresh); 221 } 222 223 bool hasRanges = false; 224 uint32 minHorizontalFrequency = 0; 225 uint32 maxHorizontalFrequency = 0; 226 uint32 minVerticalFrequency = 0; 227 uint32 maxVerticalFrequency = 0; 228 uint32 maxPixelClock = 0; 229 230 for (uint32 i = 0; i < EDID1_NUM_DETAILED_MONITOR_DESC; ++i) { 231 if (info->detailed_monitor[i].monitor_desc_type 232 == EDID1_MONITOR_RANGES) { 233 edid1_monitor_range& range 234 = info->detailed_monitor[i].data.monitor_range; 235 236 hasRanges = true; 237 minHorizontalFrequency = range.min_h; 238 maxHorizontalFrequency = range.max_h; 239 minVerticalFrequency = range.min_v; 240 maxVerticalFrequency = range.max_v; 241 maxPixelClock = range.max_clock * 10000; 242 continue; 243 } else if (info->detailed_monitor[i].monitor_desc_type 244 != EDID1_IS_DETAILED_TIMING) 245 continue; 246 247 // TODO: handle flags correctly! 248 const edid1_detailed_timing& timing 249 = info->detailed_monitor[i].data.detailed_timing; 250 display_mode mode; 251 252 if (timing.pixel_clock <= 0/* || timing.sync != 3*/) 253 continue; 254 255 mode.timing.pixel_clock = timing.pixel_clock * 10; 256 mode.timing.h_display = timing.h_active; 257 mode.timing.h_sync_start = timing.h_active + timing.h_sync_off; 258 mode.timing.h_sync_end = mode.timing.h_sync_start + timing.h_sync_width; 259 mode.timing.h_total = timing.h_active + timing.h_blank; 260 mode.timing.v_display = timing.v_active; 261 mode.timing.v_sync_start = timing.v_active + timing.v_sync_off; 262 mode.timing.v_sync_end = mode.timing.v_sync_start + timing.v_sync_width; 263 mode.timing.v_total = timing.v_active + timing.v_blank; 264 mode.timing.flags = 0; 265 if (timing.sync == 3) { 266 if (timing.misc & 1) 267 mode.timing.flags |= B_POSITIVE_HSYNC; 268 if (timing.misc & 2) 269 mode.timing.flags |= B_POSITIVE_VSYNC; 270 } 271 if (timing.interlaced) 272 mode.timing.flags |= B_TIMING_INTERLACED; 273 mode.space = B_RGB32; 274 mode.virtual_width = timing.h_active; 275 mode.virtual_height = timing.v_active; 276 mode.h_display_start = 0; 277 mode.v_display_start = 0; 278 mode.flags = MODE_FLAGS; 279 280 _AddMode(mode); 281 } 282 283 // Add other modes from the base list that satisfy the display's 284 // requirements 285 286 for (uint32 i = 0; i < kNumBaseModes; i++) { 287 const display_mode& mode = kBaseModeList[i]; 288 289 // Check if a mode with this resolution already exists 290 291 if (_FindMode(mode.timing.h_display, mode.timing.v_display) != NULL) 292 continue; 293 294 // Check monitor limits 295 296 if (hasRanges) { 297 uint32 verticalFrequency = 1000 * mode.timing.pixel_clock 298 / (mode.timing.h_total * mode.timing.v_total); 299 uint32 horizontalFrequency = mode.timing.h_total * verticalFrequency 300 / 1000; 301 302 if (minHorizontalFrequency > horizontalFrequency 303 || maxHorizontalFrequency < horizontalFrequency 304 || minVerticalFrequency > verticalFrequency 305 || maxVerticalFrequency < verticalFrequency 306 || maxPixelClock < mode.timing.pixel_clock) 307 continue; 308 } 309 310 _AddMode(mode); 311 } 312 313 return true; 314 } 315 316 317 bool 318 ModeList::AddModes(const display_mode* modes, uint32 count) 319 { 320 if (!_MakeSpace(count)) 321 return false; 322 323 for (uint32 i = 0; i < count; i++) { 324 fModes[fCount++] = modes[i]; 325 } 326 327 return true; 328 } 329 330 331 bool 332 ModeList::CreateColorSpaces(const color_space* spaces, uint32 count) 333 { 334 uint32 baseModeCount = fCount; 335 size_t baseModesSize = baseModeCount * sizeof(display_mode); 336 display_mode* baseModes = (display_mode*)malloc(baseModesSize); 337 if (baseModes == NULL) 338 return false; 339 340 memcpy(baseModes, fModes, baseModesSize); 341 342 for (uint32 i = 0; i < count; i++) { 343 if (i > 0 && !AddModes(baseModes, baseModeCount)) { 344 free(baseModes); 345 return false; 346 } 347 348 for (uint32 j = 0; j < baseModeCount; j++) { 349 fModes[j + fCount - baseModeCount].space = spaces[i]; 350 } 351 } 352 353 free(baseModes); 354 return true; 355 } 356 357 358 void 359 ModeList::Filter(check_display_mode_hook hook) 360 { 361 if (hook == NULL) 362 return; 363 364 for (uint32 i = fCount; i-- > 0;) { 365 if (!hook(&fModes[i])) 366 _RemoveModeAt(i); 367 } 368 } 369 370 371 void 372 ModeList::Clean() 373 { 374 // sort mode list 375 qsort(fModes, fCount, sizeof(display_mode), compare_mode); 376 377 // remove duplicates 378 for (uint32 i = fCount; i-- > 1;) { 379 if (compare_mode(&fModes[i], &fModes[i - 1]) == 0) 380 _RemoveModeAt(i); 381 } 382 } 383 384 385 void 386 ModeList::_AddBaseMode(uint16 width, uint16 height, uint32 refresh) 387 { 388 // Check the manually tweaked list first 389 390 for (uint32 i = 0; i < kNumBaseModes; i++) { 391 const display_mode& mode = kBaseModeList[i]; 392 393 // Add mode if width and height match, and the computed refresh rate of 394 // the mode is within 1.2 percent of the refresh rate specified by the 395 // caller. Note that refresh rates computed from mode parameters is 396 // not exact; thus, the tolerance of 1.2% was obtained by testing the 397 // various established modes that can be selected by the EDID info. 398 399 if (mode.timing.h_display == width && mode.timing.v_display == height 400 && fabs(get_refresh_rate(mode) - refresh) < refresh * 0.012) { 401 _AddMode(mode); 402 return; 403 } 404 } 405 406 // If that didn't have any entries, compute the entry 407 display_mode mode; 408 if (compute_display_timing(width, height, refresh, false, &mode.timing) 409 != B_OK) 410 return; 411 412 fill_display_mode(width, height, &mode); 413 414 _AddMode(mode); 415 } 416 417 418 display_mode* 419 ModeList::_FindMode(uint16 width, uint16 height) const 420 { 421 for (uint32 i = 0; i < fCount; i++) { 422 const display_mode& mode = fModes[i]; 423 424 if (mode.timing.h_display == width && mode.timing.v_display == height) 425 return &fModes[i]; 426 } 427 428 return NULL; 429 } 430 431 432 bool 433 ModeList::_MakeSpace(uint32 count) 434 { 435 if (fCount + count <= fCapacity) 436 return true; 437 438 uint32 capacity = (fCapacity + count + 0xf) & ~0xf; 439 display_mode* modes = (display_mode*)realloc(fModes, 440 capacity * sizeof(display_mode)); 441 if (modes == NULL) 442 return false; 443 444 fModes = modes; 445 fCapacity = capacity; 446 return true; 447 } 448 449 450 bool 451 ModeList::_AddMode(const display_mode& mode) 452 { 453 // TODO: filter by monitor timing constraints! 454 // TODO: remove double entries 455 if (!_MakeSpace(1)) 456 return false; 457 458 fModes[fCount++] = mode; 459 return true; 460 } 461 462 463 void 464 ModeList::_RemoveModeAt(uint32 index) 465 { 466 if (index < fCount - 1) { 467 memmove(&fModes[index], &fModes[index + 1], 468 (fCount - 1 - index) * sizeof(display_mode)); 469 } 470 471 fCount--; 472 } 473 474 475 // #pragma mark - 476 477 478 extern "C" area_id 479 create_display_modes(const char* name, edid1_info* edid, 480 const display_mode* initialModes, uint32 initialModeCount, 481 const color_space *spaces, uint32 spacesCount, 482 check_display_mode_hook hook, display_mode** _modes, uint32* _count) 483 { 484 if (_modes == NULL || _count == NULL) 485 return B_BAD_VALUE; 486 487 // compile initial mode list from the different sources 488 489 ModeList modes; 490 if (initialModes != NULL) 491 modes.AddModes(initialModes, initialModeCount); 492 493 if (edid != NULL) 494 modes.AddModes(edid); 495 else 496 modes.AddModes(kBaseModeList, kNumBaseModes); 497 498 // filter out modes the caller doesn't like, and multiply modes for 499 // every color space 500 501 if (spaces == NULL) { 502 const color_space kDefaultSpaces[] = {B_RGB32_LITTLE, B_RGB16_LITTLE, 503 B_RGB15_LITTLE, B_CMAP8}; 504 modes.CreateColorSpaces(kDefaultSpaces, 505 sizeof(kDefaultSpaces) / sizeof(kDefaultSpaces[0])); 506 } else 507 modes.CreateColorSpaces(spaces, spacesCount); 508 509 modes.Filter(hook); 510 modes.Clean(); 511 512 // create area for output modes 513 514 size_t size = (sizeof(display_mode) * modes.Count() + B_PAGE_SIZE - 1) 515 & ~(B_PAGE_SIZE - 1); 516 display_mode *list; 517 area_id area = create_area(name, (void **)&list, B_ANY_ADDRESS, 518 size, B_NO_LOCK, B_READ_AREA | B_WRITE_AREA); 519 if (area < B_OK) 520 return area; 521 522 memcpy(list, modes.Modes(), sizeof(display_mode) * modes.Count()); 523 *_modes = list; 524 *_count = modes.Count(); 525 526 return area; 527 } 528 529 530 void 531 fill_display_mode(uint32 width, uint32 height, display_mode* mode) 532 { 533 mode->space = B_CMAP8; 534 mode->virtual_width = width; 535 mode->virtual_height = height; 536 mode->h_display_start = 0; 537 mode->v_display_start = 0; 538 mode->flags = MODE_FLAGS; 539 } 540