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 <sandmann@redhat.com> */
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