Atlas - edid-parse.c
Home / ext / SDL / src / video / x11 Lines: 81 | Size: 19837 bytes [Download] [Show on GitHub] [Search similar files] [Raw] [Raw (proxy)][FILE BEGIN]1/* 2 * Copyright 2007 Red Hat, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * on the rights to use, copy, modify, merge, publish, distribute, sub 8 * license, and/or sell copies of the Software, and to permit persons to whom 9 * the Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 21 */ 22 23/* Author: Soren Sandmann <[email protected]> */ 24#include "SDL_internal.h" 25 26#include "edid.h" 27#include <stdlib.h> 28#include <string.h> 29#include <math.h> 30#include <stdio.h> 31 32#define TRUE 1 33#define FALSE 0 34 35static int 36get_bit (int in, int bit) 37{ 38 return (in & (1 << bit)) >> bit; 39} 40 41static int 42get_bits (int in, int begin, int end) 43{ 44 int mask = (1 << (end - begin + 1)) - 1; 45 46 return (in >> begin) & mask; 47} 48 49static int 50decode_header (const uchar *edid) 51{ 52 if (SDL_memcmp (edid, "\x00\xff\xff\xff\xff\xff\xff\x00", 8) == 0) 53 return TRUE; 54 return FALSE; 55} 56 57static int 58decode_vendor_and_product_identification (const uchar *edid, MonitorInfo *info) 59{ 60 int is_model_year; 61 62 /* Manufacturer Code */ 63 info->manufacturer_code[0] = get_bits (edid[0x08], 2, 6); 64 info->manufacturer_code[1] = get_bits (edid[0x08], 0, 1) << 3; 65 info->manufacturer_code[1] |= get_bits (edid[0x09], 5, 7); 66 info->manufacturer_code[2] = get_bits (edid[0x09], 0, 4); 67 info->manufacturer_code[3] = '\0'; 68 69 info->manufacturer_code[0] += 'A' - 1; 70 info->manufacturer_code[1] += 'A' - 1; 71 info->manufacturer_code[2] += 'A' - 1; 72 73 /* Product Code */ 74 info->product_code = edid[0x0b] << 8 | edid[0x0a]; 75 76 /* Serial Number */ 77 info->serial_number = 78 edid[0x0c] | edid[0x0d] << 8 | edid[0x0e] << 16 | (Uint32)edid[0x0f] << 24; 79 80 /* Week and Year */ 81 is_model_year = FALSE; 82 switch (edid[0x10]) 83 { 84 case 0x00: 85 info->production_week = -1; 86 break; 87 88 case 0xff: 89 info->production_week = -1; 90 is_model_year = TRUE; 91 break; 92 93 default: 94 info->production_week = edid[0x10]; 95 break; 96 } 97 98 if (is_model_year) 99 { 100 info->production_year = -1; 101 info->model_year = 1990 + edid[0x11]; 102 } 103 else 104 { 105 info->production_year = 1990 + edid[0x11]; 106 info->model_year = -1; 107 } 108 109 return TRUE; 110} 111 112static int 113decode_edid_version (const uchar *edid, MonitorInfo *info) 114{ 115 info->major_version = edid[0x12]; 116 info->minor_version = edid[0x13]; 117 118 return TRUE; 119} 120 121static int 122decode_display_parameters (const uchar *edid, MonitorInfo *info) 123{ 124 /* Digital vs Analog */ 125 info->is_digital = get_bit (edid[0x14], 7); 126 127 if (info->is_digital) 128 { 129 int bits; 130 131 static const int bit_depth[8] = 132 { 133 -1, 6, 8, 10, 12, 14, 16, -1 134 }; 135 136 static const Interface interfaces[6] = 137 { 138 UNDEFINED, DVI, HDMI_A, HDMI_B, MDDI, DISPLAY_PORT 139 }; 140 141 bits = get_bits (edid[0x14], 4, 6); 142 info->ad.digital.bits_per_primary = bit_depth[bits]; 143 144 bits = get_bits (edid[0x14], 0, 3); 145 146 if (bits <= 5) 147 info->ad.digital.interface = interfaces[bits]; 148 else 149 info->ad.digital.interface = UNDEFINED; 150 } 151 else 152 { 153 int bits = get_bits (edid[0x14], 5, 6); 154 155 static const double levels[][3] = 156 { 157 { 0.7, 0.3, 1.0 }, 158 { 0.714, 0.286, 1.0 }, 159 { 1.0, 0.4, 1.4 }, 160 { 0.7, 0.0, 0.7 }, 161 }; 162 163 info->ad.analog.video_signal_level = levels[bits][0]; 164 info->ad.analog.sync_signal_level = levels[bits][1]; 165 info->ad.analog.total_signal_level = levels[bits][2]; 166 167 info->ad.analog.blank_to_black = get_bit (edid[0x14], 4); 168 169 info->ad.analog.separate_hv_sync = get_bit (edid[0x14], 3); 170 info->ad.analog.composite_sync_on_h = get_bit (edid[0x14], 2); 171 info->ad.analog.composite_sync_on_green = get_bit (edid[0x14], 1); 172 173 info->ad.analog.serration_on_vsync = get_bit (edid[0x14], 0); 174 } 175 176 /* Screen Size / Aspect Ratio */ 177 if (edid[0x15] == 0 && edid[0x16] == 0) 178 { 179 info->width_mm = -1; 180 info->height_mm = -1; 181 info->aspect_ratio = -1.0; 182 } 183 else if (edid[0x16] == 0) 184 { 185 info->width_mm = -1; 186 info->height_mm = -1; 187 info->aspect_ratio = 100.0 / (edid[0x15] + 99); 188 } 189 else if (edid[0x15] == 0) 190 { 191 info->width_mm = -1; 192 info->height_mm = -1; 193 info->aspect_ratio = 100.0 / (edid[0x16] + 99); 194 info->aspect_ratio = 1/info->aspect_ratio; /* portrait */ 195 } 196 else 197 { 198 info->width_mm = 10 * edid[0x15]; 199 info->height_mm = 10 * edid[0x16]; 200 } 201 202 /* Gamma */ 203 if (edid[0x17] == 0xFF) 204 info->gamma = -1.0; 205 else 206 info->gamma = (edid[0x17] + 100.0) / 100.0; 207 208 /* Features */ 209 info->standby = get_bit (edid[0x18], 7); 210 info->suspend = get_bit (edid[0x18], 6); 211 info->active_off = get_bit (edid[0x18], 5); 212 213 if (info->is_digital) 214 { 215 info->ad.digital.rgb444 = TRUE; 216 if (get_bit (edid[0x18], 3)) 217 info->ad.digital.ycrcb444 = 1; 218 if (get_bit (edid[0x18], 4)) 219 info->ad.digital.ycrcb422 = 1; 220 } 221 else 222 { 223 int bits = get_bits (edid[0x18], 3, 4); 224 ColorType color_type[4] = 225 { 226 MONOCHROME, RGB, OTHER_COLOR, UNDEFINED_COLOR 227 }; 228 229 info->ad.analog.color_type = color_type[bits]; 230 } 231 232 info->srgb_is_standard = get_bit (edid[0x18], 2); 233 234 /* In 1.3 this is called "has preferred timing" */ 235 info->preferred_timing_includes_native = get_bit (edid[0x18], 1); 236 237 /* FIXME: In 1.3 this indicates whether the monitor accepts GTF */ 238 info->continuous_frequency = get_bit (edid[0x18], 0); 239 return TRUE; 240} 241 242static double 243decode_fraction (int high, int low) 244{ 245 double result = 0.0; 246 int i; 247 248 high = (high << 2) | low; 249 250 for (i = 0; i < 10; ++i) 251 result += get_bit (high, i) * SDL_pow (2, i - 10); 252 253 return result; 254} 255 256static int 257decode_color_characteristics (const uchar *edid, MonitorInfo *info) 258{ 259 info->red_x = decode_fraction (edid[0x1b], get_bits (edid[0x19], 6, 7)); 260 info->red_y = decode_fraction (edid[0x1c], get_bits (edid[0x19], 5, 4)); 261 info->green_x = decode_fraction (edid[0x1d], get_bits (edid[0x19], 2, 3)); 262 info->green_y = decode_fraction (edid[0x1e], get_bits (edid[0x19], 0, 1)); 263 info->blue_x = decode_fraction (edid[0x1f], get_bits (edid[0x1a], 6, 7)); 264 info->blue_y = decode_fraction (edid[0x20], get_bits (edid[0x1a], 4, 5)); 265 info->white_x = decode_fraction (edid[0x21], get_bits (edid[0x1a], 2, 3)); 266 info->white_y = decode_fraction (edid[0x22], get_bits (edid[0x1a], 0, 1)); 267 268 return TRUE; 269} 270 271static int 272decode_established_timings (const uchar *edid, MonitorInfo *info) 273{ 274 static const Timing established[][8] = 275 { 276 { 277 { 800, 600, 60 }, 278 { 800, 600, 56 }, 279 { 640, 480, 75 }, 280 { 640, 480, 72 }, 281 { 640, 480, 67 }, 282 { 640, 480, 60 }, 283 { 720, 400, 88 }, 284 { 720, 400, 70 } 285 }, 286 { 287 { 1280, 1024, 75 }, 288 { 1024, 768, 75 }, 289 { 1024, 768, 70 }, 290 { 1024, 768, 60 }, 291 { 1024, 768, 87 }, 292 { 832, 624, 75 }, 293 { 800, 600, 75 }, 294 { 800, 600, 72 } 295 }, 296 { 297 { 0, 0, 0 }, 298 { 0, 0, 0 }, 299 { 0, 0, 0 }, 300 { 0, 0, 0 }, 301 { 0, 0, 0 }, 302 { 0, 0, 0 }, 303 { 0, 0, 0 }, 304 { 1152, 870, 75 } 305 }, 306 }; 307 308 int i, j, idx; 309 310 idx = 0; 311 for (i = 0; i < 3; ++i) 312 { 313 for (j = 0; j < 8; ++j) 314 { 315 int byte = edid[0x23 + i]; 316 317 if (get_bit (byte, j) && established[i][j].frequency != 0) 318 info->established[idx++] = established[i][j]; 319 } 320 } 321 return TRUE; 322} 323 324static int 325decode_standard_timings (const uchar *edid, MonitorInfo *info) 326{ 327 int i; 328 329 for (i = 0; i < 8; i++) 330 { 331 int first = edid[0x26 + 2 * i]; 332 int second = edid[0x27 + 2 * i]; 333 334 if (first != 0x01 && second != 0x01) 335 { 336 int w = 8 * (first + 31); 337 int h = 0; 338 339 switch (get_bits (second, 6, 7)) 340 { 341 case 0x00: h = (w / 16) * 10; break; 342 case 0x01: h = (w / 4) * 3; break; 343 case 0x02: h = (w / 5) * 4; break; 344 case 0x03: h = (w / 16) * 9; break; 345 } 346 347 info->standard[i].width = w; 348 info->standard[i].height = h; 349 info->standard[i].frequency = get_bits (second, 0, 5) + 60; 350 } 351 } 352 353 return TRUE; 354} 355 356static void 357decode_lf_string (const uchar *s, int n_chars, char *result) 358{ 359 int i; 360 for (i = 0; i < n_chars; ++i) 361 { 362 if (s[i] == 0x0a) 363 { 364 *result++ = '\0'; 365 break; 366 } 367 else if (s[i] == 0x00) 368 { 369 /* Convert embedded 0's to spaces */ 370 *result++ = ' '; 371 } 372 else 373 { 374 *result++ = s[i]; 375 } 376 } 377} 378 379static void 380decode_display_descriptor (const uchar *desc, 381 MonitorInfo *info) 382{ 383 switch (desc[0x03]) 384 { 385 case 0xFC: 386 decode_lf_string (desc + 5, 13, info->dsc_product_name); 387 break; 388 case 0xFF: 389 decode_lf_string (desc + 5, 13, info->dsc_serial_number); 390 break; 391 case 0xFE: 392 decode_lf_string (desc + 5, 13, info->dsc_string); 393 break; 394 case 0xFD: 395 /* Range Limits */ 396 break; 397 case 0xFB: 398 /* Color Point */ 399 break; 400 case 0xFA: 401 /* Timing Identifications */ 402 break; 403 case 0xF9: 404 /* Color Management */ 405 break; 406 case 0xF8: 407 /* Timing Codes */ 408 break; 409 case 0xF7: 410 /* Established Timings */ 411 break; 412 case 0x10: 413 break; 414 } 415} 416 417static void 418decode_detailed_timing (const uchar *timing, 419 DetailedTiming *detailed) 420{ 421 int bits; 422 StereoType stereo[] = 423 { 424 NO_STEREO, NO_STEREO, FIELD_RIGHT, FIELD_LEFT, 425 TWO_WAY_RIGHT_ON_EVEN, TWO_WAY_LEFT_ON_EVEN, 426 FOUR_WAY_INTERLEAVED, SIDE_BY_SIDE 427 }; 428 429 detailed->pixel_clock = (timing[0x00] | timing[0x01] << 8) * 10000; 430 detailed->h_addr = timing[0x02] | ((timing[0x04] & 0xf0) << 4); 431 detailed->h_blank = timing[0x03] | ((timing[0x04] & 0x0f) << 8); 432 detailed->v_addr = timing[0x05] | ((timing[0x07] & 0xf0) << 4); 433 detailed->v_blank = timing[0x06] | ((timing[0x07] & 0x0f) << 8); 434 detailed->h_front_porch = timing[0x08] | get_bits (timing[0x0b], 6, 7) << 8; 435 detailed->h_sync = timing[0x09] | get_bits (timing[0x0b], 4, 5) << 8; 436 detailed->v_front_porch = 437 get_bits (timing[0x0a], 4, 7) | get_bits (timing[0x0b], 2, 3) << 4; 438 detailed->v_sync = 439 get_bits (timing[0x0a], 0, 3) | get_bits (timing[0x0b], 0, 1) << 4; 440 detailed->width_mm = timing[0x0c] | get_bits (timing[0x0e], 4, 7) << 8; 441 detailed->height_mm = timing[0x0d] | get_bits (timing[0x0e], 0, 3) << 8; 442 detailed->right_border = timing[0x0f]; 443 detailed->top_border = timing[0x10]; 444 445 detailed->interlaced = get_bit (timing[0x11], 7); 446 447 /* Stereo */ 448 bits = get_bits (timing[0x11], 5, 6) << 1 | get_bit (timing[0x11], 0); 449 detailed->stereo = stereo[bits]; 450 451 /* Sync */ 452 bits = timing[0x11]; 453 454 detailed->digital_sync = get_bit (bits, 4); 455 if (detailed->digital_sync) 456 { 457 detailed->ad.digital.composite = !get_bit (bits, 3); 458 459 if (detailed->ad.digital.composite) 460 { 461 detailed->ad.digital.serrations = get_bit (bits, 2); 462 detailed->ad.digital.negative_vsync = FALSE; 463 } 464 else 465 { 466 detailed->ad.digital.serrations = FALSE; 467 detailed->ad.digital.negative_vsync = !get_bit (bits, 2); 468 } 469 470 detailed->ad.digital.negative_hsync = !get_bit (bits, 0); 471 } 472 else 473 { 474 detailed->ad.analog.bipolar = get_bit (bits, 3); 475 detailed->ad.analog.serrations = get_bit (bits, 2); 476 detailed->ad.analog.sync_on_green = !get_bit (bits, 1); 477 } 478} 479 480static int 481decode_descriptors (const uchar *edid, MonitorInfo *info) 482{ 483 int i; 484 int timing_idx; 485 486 timing_idx = 0; 487 488 for (i = 0; i < 4; ++i) 489 { 490 int index = 0x36 + i * 18; 491 492 if (edid[index + 0] == 0x00 && edid[index + 1] == 0x00) 493 { 494 decode_display_descriptor (edid + index, info); 495 } 496 else 497 { 498 decode_detailed_timing ( 499 edid + index, &(info->detailed_timings[timing_idx++])); 500 } 501 } 502 503 info->n_detailed_timings = timing_idx; 504 505 return TRUE; 506} 507 508static void 509decode_check_sum (const uchar *edid, 510 MonitorInfo *info) 511{ 512 int i; 513 uchar check = 0; 514 515 for (i = 0; i < 128; ++i) 516 check += edid[i]; 517 518 info->checksum = check; 519} 520 521MonitorInfo * 522decode_edid (const uchar *edid) 523{ 524 MonitorInfo *info = SDL_calloc (1, sizeof (MonitorInfo)); 525 526 decode_check_sum (edid, info); 527 528 if (!decode_header (edid) || 529 !decode_vendor_and_product_identification (edid, info) || 530 !decode_edid_version (edid, info) || 531 !decode_display_parameters (edid, info) || 532 !decode_color_characteristics (edid, info) || 533 !decode_established_timings (edid, info) || 534 !decode_standard_timings (edid, info) || 535 !decode_descriptors (edid, info)) { 536 SDL_free(info); 537 return NULL; 538 } 539 540 return info; 541} 542 543static const char * 544yesno (int v) 545{ 546 return v? "yes" : "no"; 547} 548 549void 550dump_monitor_info (MonitorInfo *info) 551{ 552 int i; 553 554 printf ("Checksum: %d (%s)\n", 555 info->checksum, info->checksum? "incorrect" : "correct"); 556 printf ("Manufacturer Code: %s\n", info->manufacturer_code); 557 printf ("Product Code: 0x%x\n", info->product_code); 558 printf ("Serial Number: %u\n", info->serial_number); 559 560 if (info->production_week != -1) 561 printf ("Production Week: %d\n", info->production_week); 562 else 563 printf ("Production Week: unspecified\n"); 564 565 if (info->production_year != -1) 566 printf ("Production Year: %d\n", info->production_year); 567 else 568 printf ("Production Year: unspecified\n"); 569 570 if (info->model_year != -1) 571 printf ("Model Year: %d\n", info->model_year); 572 else 573 printf ("Model Year: unspecified\n"); 574 575 printf ("EDID revision: %d.%d\n", info->major_version, info->minor_version); 576 577 printf ("Display is %s\n", info->is_digital? "digital" : "analog"); 578 if (info->is_digital) 579 { 580 const char *interface; 581 if (info->ad.digital.bits_per_primary != -1) 582 printf ("Bits Per Primary: %d\n", info->ad.digital.bits_per_primary); 583 else 584 printf ("Bits Per Primary: undefined\n"); 585 586 switch (info->ad.digital.interface) 587 { 588 case DVI: interface = "DVI"; break; 589 case HDMI_A: interface = "HDMI-a"; break; 590 case HDMI_B: interface = "HDMI-b"; break; 591 case MDDI: interface = "MDDI"; break; 592 case DISPLAY_PORT: interface = "DisplayPort"; break; 593 case UNDEFINED: interface = "undefined"; break; 594 default: interface = "unknown"; break; 595 } 596 printf ("Interface: %s\n", interface); 597 598 printf ("RGB 4:4:4: %s\n", yesno (info->ad.digital.rgb444)); 599 printf ("YCrCb 4:4:4: %s\n", yesno (info->ad.digital.ycrcb444)); 600 printf ("YCrCb 4:2:2: %s\n", yesno (info->ad.digital.ycrcb422)); 601 } 602 else 603 { 604 const char *s; 605 printf ("Video Signal Level: %f\n", info->ad.analog.video_signal_level); 606 printf ("Sync Signal Level: %f\n", info->ad.analog.sync_signal_level); 607 printf ("Total Signal Level: %f\n", info->ad.analog.total_signal_level); 608 609 printf ("Blank to Black: %s\n", 610 yesno (info->ad.analog.blank_to_black)); 611 printf ("Separate HV Sync: %s\n", 612 yesno (info->ad.analog.separate_hv_sync)); 613 printf ("Composite Sync on H: %s\n", 614 yesno (info->ad.analog.composite_sync_on_h)); 615 printf ("Serration on VSync: %s\n", 616 yesno (info->ad.analog.serration_on_vsync)); 617 618 switch (info->ad.analog.color_type) 619 { 620 case UNDEFINED_COLOR: s = "undefined"; break; 621 case MONOCHROME: s = "monochrome"; break; 622 case RGB: s = "rgb"; break; 623 case OTHER_COLOR: s = "other color"; break; 624 default: s = "unknown"; break; 625 } 626 627 printf ("Color: %s\n", s); 628 } 629 630 if (info->width_mm == -1) 631 printf ("Width: undefined\n"); 632 else 633 printf ("Width: %d mm\n", info->width_mm); 634 635 if (info->height_mm == -1) 636 printf ("Height: undefined\n"); 637 else 638 printf ("Height: %d mm\n", info->height_mm); 639 640 if (info->aspect_ratio > 0) 641 printf ("Aspect Ratio: %f\n", info->aspect_ratio); 642 else 643 printf ("Aspect Ratio: undefined\n"); 644 645 if (info->gamma >= 0) 646 printf ("Gamma: %f\n", info->gamma); 647 else 648 printf ("Gamma: undefined\n"); 649 650 printf ("Standby: %s\n", yesno (info->standby)); 651 printf ("Suspend: %s\n", yesno (info->suspend)); 652 printf ("Active Off: %s\n", yesno (info->active_off)); 653 654 printf ("SRGB is Standard: %s\n", yesno (info->srgb_is_standard)); 655 printf ("Preferred Timing Includes Native: %s\n", 656 yesno (info->preferred_timing_includes_native)); 657 printf ("Continuous Frequency: %s\n", yesno (info->continuous_frequency)); 658 659 printf ("Red X: %f\n", info->red_x); 660 printf ("Red Y: %f\n", info->red_y); 661 printf ("Green X: %f\n", info->green_x); 662 printf ("Green Y: %f\n", info->green_y); 663 printf ("Blue X: %f\n", info->blue_x); 664 printf ("Blue Y: %f\n", info->blue_y); 665 printf ("White X: %f\n", info->white_x); 666 printf ("White Y: %f\n", info->white_y); 667 668 printf ("Established Timings:\n"); 669 670 for (i = 0; i < 24; ++i) 671 { 672 Timing *timing = &(info->established[i]); 673 674 if (timing->frequency == 0) 675 break; 676 677 printf (" %d x %d @ %d Hz\n", 678 timing->width, timing->height, timing->frequency); 679 680 } 681 682 printf ("Standard Timings:\n"); 683 for (i = 0; i < 8; ++i) 684 { 685 Timing *timing = &(info->standard[i]); 686 687 if (timing->frequency == 0) 688 break; 689 690 printf (" %d x %d @ %d Hz\n", 691 timing->width, timing->height, timing->frequency); 692 } 693 694 for (i = 0; i < info->n_detailed_timings; ++i) 695 { 696 DetailedTiming *timing = &(info->detailed_timings[i]); 697 const char *s; 698 699 printf ("Timing%s: \n", 700 (i == 0 && info->preferred_timing_includes_native)? 701 " (Preferred)" : ""); 702 printf (" Pixel Clock: %d\n", timing->pixel_clock); 703 printf (" H Addressable: %d\n", timing->h_addr); 704 printf (" H Blank: %d\n", timing->h_blank); 705 printf (" H Front Porch: %d\n", timing->h_front_porch); 706 printf (" H Sync: %d\n", timing->h_sync); 707 printf (" V Addressable: %d\n", timing->v_addr); 708 printf (" V Blank: %d\n", timing->v_blank); 709 printf (" V Front Porch: %d\n", timing->v_front_porch); 710 printf (" V Sync: %d\n", timing->v_sync); 711 printf (" Width: %d mm\n", timing->width_mm); 712 printf (" Height: %d mm\n", timing->height_mm); 713 printf (" Right Border: %d\n", timing->right_border); 714 printf (" Top Border: %d\n", timing->top_border); 715 switch (timing->stereo) 716 { 717 default: 718 case NO_STEREO: s = "No Stereo"; break; 719 case FIELD_RIGHT: s = "Field Sequential, Right on Sync"; break; 720 case FIELD_LEFT: s = "Field Sequential, Left on Sync"; break; 721 case TWO_WAY_RIGHT_ON_EVEN: s = "Two-way, Right on Even"; break; 722 case TWO_WAY_LEFT_ON_EVEN: s = "Two-way, Left on Even"; break; 723 case FOUR_WAY_INTERLEAVED: s = "Four-way Interleaved"; break; 724 case SIDE_BY_SIDE: s = "Side-by-Side"; break; 725 } 726 printf (" Stereo: %s\n", s); 727 728 if (timing->digital_sync) 729 { 730 printf (" Digital Sync:\n"); 731 printf (" composite: %s\n", yesno (timing->ad.digital.composite)); 732 printf (" serrations: %s\n", yesno (timing->ad.digital.serrations)); 733 printf (" negative vsync: %s\n", 734 yesno (timing->ad.digital.negative_vsync)); 735 printf (" negative hsync: %s\n", 736 yesno (timing->ad.digital.negative_hsync)); 737 } 738 else 739 { 740 printf (" Analog Sync:\n"); 741 printf (" bipolar: %s\n", yesno (timing->ad.analog.bipolar)); 742 printf (" serrations: %s\n", yesno (timing->ad.analog.serrations)); 743 printf (" sync on green: %s\n", yesno ( 744 timing->ad.analog.sync_on_green)); 745 } 746 } 747 748 printf ("Detailed Product information:\n"); 749 printf (" Product Name: %s\n", info->dsc_product_name); 750 printf (" Serial Number: %s\n", info->dsc_serial_number); 751 printf (" Unspecified String: %s\n", info->dsc_string); 752} 753 754[FILE END](C) 2025 0x4248 (C) 2025 4248 Media and 4248 Systems, All part of 0x4248 See LICENCE files for more information. 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