// SPDX-License-Identifier: MIT /* * Copyright 2006-2012 Red Hat, Inc. * Copyright 2018-2020 Cisco Systems, Inc. and/or its affiliates. All rights reserved. * * Author: Adam Jackson * Maintainer: Hans Verkuil */ #include #include #include "edid-decode.h" static const struct timings edid_cta_modes1[] = { /* VIC 1 */ { 640, 480, 4, 3, 25175, 0, false, 16, 96, 48, false, 10, 2, 33, false }, { 720, 480, 4, 3, 27000, 0, false, 16, 62, 60, false, 9, 6, 30, false }, { 720, 480, 16, 9, 27000, 0, false, 16, 62, 60, false, 9, 6, 30, false }, { 1280, 720, 16, 9, 74250, 0, false, 110, 40, 220, true, 5, 5, 20, true }, { 1920, 1080, 16, 9, 74250, 0, true, 88, 44, 148, true, 2, 5, 15, true }, { 1440, 480, 4, 3, 27000, 0, true, 38, 124, 114, false, 4, 3, 15, false }, { 1440, 480, 16, 9, 27000, 0, true, 38, 124, 114, false, 4, 3, 15, false }, { 1440, 240, 4, 3, 27000, 0, false, 38, 124, 114, false, 4, 3, 15, false }, { 1440, 240, 16, 9, 27000, 0, false, 38, 124, 114, false, 4, 3, 15, false }, { 2880, 480, 4, 3, 54000, 0, true, 76, 248, 228, false, 4, 3, 15, false }, /* VIC 11 */ { 2880, 480, 16, 9, 54000, 0, true, 76, 248, 228, false, 4, 3, 15, false }, { 2880, 240, 4, 3, 54000, 0, false, 76, 248, 228, false, 4, 3, 15, false }, { 2880, 240, 16, 9, 54000, 0, false, 76, 248, 228, false, 4, 3, 15, false }, { 1440, 480, 4, 3, 54000, 0, false, 32, 124, 120, false, 9, 6, 30, false }, { 1440, 480, 16, 9, 54000, 0, false, 32, 124, 120, false, 9, 6, 30, false }, { 1920, 1080, 16, 9, 148500, 0, false, 88, 44, 148, true, 4, 5, 36, true }, { 720, 576, 4, 3, 27000, 0, false, 12, 64, 68, false, 5, 5, 39, false }, { 720, 576, 16, 9, 27000, 0, false, 12, 64, 68, false, 5, 5, 39, false }, { 1280, 720, 16, 9, 74250, 0, false, 440, 40, 220, true, 5, 5, 20, true }, { 1920, 1080, 16, 9, 74250, 0, true, 528, 44, 148, true, 2, 5, 15, true }, /* VIC 21 */ { 1440, 576, 4, 3, 27000, 0, true, 24, 126, 138, false, 2, 3, 19, false }, { 1440, 576, 16, 9, 27000, 0, true, 24, 126, 138, false, 2, 3, 19, false }, { 1440, 288, 4, 3, 27000, 0, false, 24, 126, 138, false, 2, 3, 19, false }, { 1440, 288, 16, 9, 27000, 0, false, 24, 126, 138, false, 2, 3, 19, false }, { 2880, 576, 4, 3, 54000, 0, true, 48, 252, 276, false, 2, 3, 19, false }, { 2880, 576, 16, 9, 54000, 0, true, 48, 252, 276, false, 2, 3, 19, false }, { 2880, 288, 4, 3, 54000, 0, false, 48, 252, 276, false, 2, 3, 19, false }, { 2880, 288, 16, 9, 54000, 0, false, 48, 252, 276, false, 2, 3, 19, false }, { 1440, 576, 4, 3, 54000, 0, false, 24, 128, 136, false, 5, 5, 39, false }, { 1440, 576, 16, 9, 54000, 0, false, 24, 128, 136, false, 5, 5, 39, false }, /* VIC 31 */ { 1920, 1080, 16, 9, 148500, 0, false, 528, 44, 148, true, 4, 5, 36, true }, { 1920, 1080, 16, 9, 74250, 0, false, 638, 44, 148, true, 4, 5, 36, true }, { 1920, 1080, 16, 9, 74250, 0, false, 528, 44, 148, true, 4, 5, 36, true }, { 1920, 1080, 16, 9, 74250, 0, false, 88, 44, 148, true, 4, 5, 36, true }, { 2880, 480, 4, 3, 108000, 0, false, 64, 248, 240, false, 9, 6, 30, false }, { 2880, 480, 16, 9, 108000, 0, false, 64, 248, 240, false, 9, 6, 30, false }, { 2880, 576, 4, 3, 108000, 0, false, 48, 256, 272, false, 5, 5, 39, false }, { 2880, 576, 16, 9, 108000, 0, false, 48, 256, 272, false, 5, 5, 39, false }, { 1920, 1080, 16, 9, 72000, 0, true, 32, 168, 184, true, 23, 5, 57, false, 0, 0, true }, { 1920, 1080, 16, 9, 148500, 0, true, 528, 44, 148, true, 2, 5, 15, true }, /* VIC 41 */ { 1280, 720, 16, 9, 148500, 0, false, 440, 40, 220, true, 5, 5, 20, true }, { 720, 576, 4, 3, 54000, 0, false, 12, 64, 68, false, 5, 5, 39, false }, { 720, 576, 16, 9, 54000, 0, false, 12, 64, 68, false, 5, 5, 39, false }, { 1440, 576, 4, 3, 54000, 0, true, 24, 126, 138, false, 2, 3, 19, false }, { 1440, 576, 16, 9, 54000, 0, true, 24, 126, 138, false, 2, 3, 19, false }, { 1920, 1080, 16, 9, 148500, 0, true, 88, 44, 148, true, 2, 5, 15, true }, { 1280, 720, 16, 9, 148500, 0, false, 110, 40, 220, true, 5, 5, 20, true }, { 720, 480, 4, 3, 54000, 0, false, 16, 62, 60, false, 9, 6, 30, false }, { 720, 480, 16, 9, 54000, 0, false, 16, 62, 60, false, 9, 6, 30, false }, { 1440, 480, 4, 3, 54000, 0, true, 38, 124, 114, false, 4, 3, 15, false }, /* VIC 51 */ { 1440, 480, 16, 9, 54000, 0, true, 38, 124, 114, false, 4, 3, 15, false }, { 720, 576, 4, 3, 108000, 0, false, 12, 64, 68, false, 5, 5, 39, false }, { 720, 576, 16, 9, 108000, 0, false, 12, 64, 68, false, 5, 5, 39, false }, { 1440, 576, 4, 3, 108000, 0, true, 24, 126, 138, false, 2, 3, 19, false }, { 1440, 576, 16, 9, 108000, 0, true, 24, 126, 138, false, 2, 3, 19, false }, { 720, 480, 4, 3, 108000, 0, false, 16, 62, 60, false, 9, 6, 30, false }, { 720, 480, 16, 9, 108000, 0, false, 16, 62, 60, false, 9, 6, 30, false }, { 1440, 480, 4, 3, 108000, 0, true, 38, 124, 114, false, 4, 3, 15, false }, { 1440, 480, 16, 9, 108000, 0, true, 38, 124, 114, false, 4, 3, 15, false }, { 1280, 720, 16, 9, 59400, 0, false, 1760, 40, 220, true, 5, 5, 20, true }, /* VIC 61 */ { 1280, 720, 16, 9, 74250, 0, false, 2420, 40, 220, true, 5, 5, 20, true }, { 1280, 720, 16, 9, 74250, 0, false, 1760, 40, 220, true, 5, 5, 20, true }, { 1920, 1080, 16, 9, 297000, 0, false, 88, 44, 148, true, 4, 5, 36, true }, { 1920, 1080, 16, 9, 297000, 0, false, 528, 44, 148, true, 4, 5, 36, true }, { 1280, 720, 64, 27, 59400, 0, false, 1760, 40, 220, true, 5, 5, 20, true }, { 1280, 720, 64, 27, 74250, 0, false, 2420, 40, 220, true, 5, 5, 20, true }, { 1280, 720, 64, 27, 74250, 0, false, 1760, 40, 220, true, 5, 5, 20, true }, { 1280, 720, 64, 27, 74250, 0, false, 440, 40, 220, true, 5, 5, 20, true }, { 1280, 720, 64, 27, 74250, 0, false, 110, 40, 220, true, 5, 5, 20, true }, { 1280, 720, 64, 27, 148500, 0, false, 440, 40, 220, true, 5, 5, 20, true }, /* VIC 71 */ { 1280, 720, 64, 27, 148500, 0, false, 110, 40, 220, true, 5, 5, 20, true }, { 1920, 1080, 64, 27, 74250, 0, false, 638, 44, 148, true, 4, 5, 36, true }, { 1920, 1080, 64, 27, 74250, 0, false, 528, 44, 148, true, 4, 5, 36, true }, { 1920, 1080, 64, 27, 74250, 0, false, 88, 44, 148, true, 4, 5, 36, true }, { 1920, 1080, 64, 27, 148500, 0, false, 528, 44, 148, true, 4, 5, 36, true }, { 1920, 1080, 64, 27, 148500, 0, false, 88, 44, 148, true, 4, 5, 36, true }, { 1920, 1080, 64, 27, 297000, 0, false, 528, 44, 148, true, 4, 5, 36, true }, { 1920, 1080, 64, 27, 297000, 0, false, 88, 44, 148, true, 4, 5, 36, true }, { 1680, 720, 64, 27, 59400, 0, false, 1360, 40, 220, true, 5, 5, 20, true }, { 1680, 720, 64, 27, 59400, 0, false, 1228, 40, 220, true, 5, 5, 20, true }, /* VIC 81 */ { 1680, 720, 64, 27, 59400, 0, false, 700, 40, 220, true, 5, 5, 20, true }, { 1680, 720, 64, 27, 82500, 0, false, 260, 40, 220, true, 5, 5, 20, true }, { 1680, 720, 64, 27, 99000, 0, false, 260, 40, 220, true, 5, 5, 20, true }, { 1680, 720, 64, 27, 165000, 0, false, 60, 40, 220, true, 5, 5, 95, true }, { 1680, 720, 64, 27, 198000, 0, false, 60, 40, 220, true, 5, 5, 95, true }, { 2560, 1080, 64, 27, 99000, 0, false, 998, 44, 148, true, 4, 5, 11, true }, { 2560, 1080, 64, 27, 90000, 0, false, 448, 44, 148, true, 4, 5, 36, true }, { 2560, 1080, 64, 27, 118800, 0, false, 768, 44, 148, true, 4, 5, 36, true }, { 2560, 1080, 64, 27, 185625, 0, false, 548, 44, 148, true, 4, 5, 36, true }, { 2560, 1080, 64, 27, 198000, 0, false, 248, 44, 148, true, 4, 5, 11, true }, /* VIC 91 */ { 2560, 1080, 64, 27, 371250, 0, false, 218, 44, 148, true, 4, 5, 161, true }, { 2560, 1080, 64, 27, 495000, 0, false, 548, 44, 148, true, 4, 5, 161, true }, { 3840, 2160, 16, 9, 297000, 0, false, 1276, 88, 296, true, 8, 10, 72, true }, { 3840, 2160, 16, 9, 297000, 0, false, 1056, 88, 296, true, 8, 10, 72, true }, { 3840, 2160, 16, 9, 297000, 0, false, 176, 88, 296, true, 8, 10, 72, true }, { 3840, 2160, 16, 9, 594000, 0, false, 1056, 88, 296, true, 8, 10, 72, true }, { 3840, 2160, 16, 9, 594000, 0, false, 176, 88, 296, true, 8, 10, 72, true }, { 4096, 2160, 256, 135, 297000, 0, false, 1020, 88, 296, true, 8, 10, 72, true }, { 4096, 2160, 256, 135, 297000, 0, false, 968, 88, 128, true, 8, 10, 72, true }, { 4096, 2160, 256, 135, 297000, 0, false, 88, 88, 128, true, 8, 10, 72, true }, /* VIC 101 */ { 4096, 2160, 256, 135, 594000, 0, false, 968, 88, 128, true, 8, 10, 72, true }, { 4096, 2160, 256, 135, 594000, 0, false, 88, 88, 128, true, 8, 10, 72, true }, { 3840, 2160, 64, 27, 297000, 0, false, 1276, 88, 296, true, 8, 10, 72, true }, { 3840, 2160, 64, 27, 297000, 0, false, 1056, 88, 296, true, 8, 10, 72, true }, { 3840, 2160, 64, 27, 297000, 0, false, 176, 88, 296, true, 8, 10, 72, true }, { 3840, 2160, 64, 27, 594000, 0, false, 1056, 88, 296, true, 8, 10, 72, true }, { 3840, 2160, 64, 27, 594000, 0, false, 176, 88, 296, true, 8, 10, 72, true }, { 1280, 720, 16, 9, 90000, 0, false, 960, 40, 220, true, 5, 5, 20, true }, { 1280, 720, 64, 27, 90000, 0, false, 960, 40, 220, true, 5, 5, 20, true }, { 1680, 720, 64, 27, 99000, 0, false, 810, 40, 220, true, 5, 5, 20, true }, /* VIC 111 */ { 1920, 1080, 16, 9, 148500, 0, false, 638, 44, 148, true, 4, 5, 36, true }, { 1920, 1080, 64, 27, 148500, 0, false, 638, 44, 148, true, 4, 5, 36, true }, { 2560, 1080, 64, 27, 198000, 0, false, 998, 44, 148, true, 4, 5, 11, true }, { 3840, 2160, 16, 9, 594000, 0, false, 1276, 88, 296, true, 8, 10, 72, true }, { 4096, 2160, 256, 135, 594000, 0, false, 1020, 88, 296, true, 8, 10, 72, true }, { 3840, 2160, 64, 27, 594000, 0, false, 1276, 88, 296, true, 8, 10, 72, true }, { 3840, 2160, 16, 9, 1188000, 0, false, 1056, 88, 296, true, 8, 10, 72, true }, { 3840, 2160, 16, 9, 1188000, 0, false, 176, 88, 296, true, 8, 10, 72, true }, { 3840, 2160, 64, 27, 1188000, 0, false, 1056, 88, 296, true, 8, 10, 72, true }, { 3840, 2160, 64, 27, 1188000, 0, false, 176, 88, 296, true, 8, 10, 72, true }, /* VIC 121 */ { 5120, 2160, 64, 27, 396000, 0, false, 1996, 88, 296, true, 8, 10, 22, true }, { 5120, 2160, 64, 27, 396000, 0, false, 1696, 88, 296, true, 8, 10, 22, true }, { 5120, 2160, 64, 27, 396000, 0, false, 664, 88, 128, true, 8, 10, 22, true }, { 5120, 2160, 64, 27, 742500, 0, false, 746, 88, 296, true, 8, 10, 297, true }, { 5120, 2160, 64, 27, 742500, 0, false, 1096, 88, 296, true, 8, 10, 72, true }, { 5120, 2160, 64, 27, 742500, 0, false, 164, 88, 128, true, 8, 10, 72, true }, { 5120, 2160, 64, 27, 1485000, 0, false, 1096, 88, 296, true, 8, 10, 72, true }, }; static const struct timings edid_cta_modes2[] = { /* VIC 193 */ { 5120, 2160, 64, 27, 1485000, 0, false, 164, 88, 128, true, 8, 10, 72, true }, { 7680, 4320, 16, 9, 1188000, 0, false, 2552, 176, 592, true, 16, 20, 144, true }, { 7680, 4320, 16, 9, 1188000, 0, false, 2352, 176, 592, true, 16, 20, 44, true }, { 7680, 4320, 16, 9, 1188000, 0, false, 552, 176, 592, true, 16, 20, 44, true }, { 7680, 4320, 16, 9, 2376000, 0, false, 2552, 176, 592, true, 16, 20, 144, true }, { 7680, 4320, 16, 9, 2376000, 0, false, 2352, 176, 592, true, 16, 20, 44, true }, { 7680, 4320, 16, 9, 2376000, 0, false, 552, 176, 592, true, 16, 20, 44, true }, { 7680, 4320, 16, 9, 4752000, 0, false, 2112, 176, 592, true, 16, 20, 144, true }, /* VIC 201 */ { 7680, 4320, 16, 9, 4752000, 0, false, 352, 176, 592, true, 16, 20, 144, true }, { 7680, 4320, 64, 27, 1188000, 0, false, 2552, 176, 592, true, 16, 20, 144, true }, { 7680, 4320, 64, 27, 1188000, 0, false, 2352, 176, 592, true, 16, 20, 44, true }, { 7680, 4320, 64, 27, 1188000, 0, false, 552, 176, 592, true, 16, 20, 44, true }, { 7680, 4320, 64, 27, 2376000, 0, false, 2552, 176, 592, true, 16, 20, 144, true }, { 7680, 4320, 64, 27, 2376000, 0, false, 2352, 176, 592, true, 16, 20, 44, true }, { 7680, 4320, 64, 27, 2376000, 0, false, 552, 176, 592, true, 16, 20, 44, true }, { 7680, 4320, 64, 27, 4752000, 0, false, 2112, 176, 592, true, 16, 20, 144, true }, { 7680, 4320, 64, 27, 4752000, 0, false, 352, 176, 592, true, 16, 20, 144, true }, { 10240, 4320, 64, 27, 1485000, 0, false, 1492, 176, 592, true, 16, 20, 594, true }, /* VIC 211 */ { 10240, 4320, 64, 27, 1485000, 0, false, 2492, 176, 592, true, 16, 20, 44, true }, { 10240, 4320, 64, 27, 1485000, 0, false, 288, 176, 296, true, 16, 20, 144, true }, { 10240, 4320, 64, 27, 2970000, 0, false, 1492, 176, 592, true, 16, 20, 594, true }, { 10240, 4320, 64, 27, 2970000, 0, false, 2492, 176, 592, true, 16, 20, 44, true }, { 10240, 4320, 64, 27, 2970000, 0, false, 288, 176, 296, true, 16, 20, 144, true }, { 10240, 4320, 64, 27, 5940000, 0, false, 2192, 176, 592, true, 16, 20, 144, true }, { 10240, 4320, 64, 27, 5940000, 0, false, 288, 176, 296, true, 16, 20, 144, true }, { 4096, 2160, 256, 135, 1188000, 0, false, 800, 88, 296, true, 8, 10, 72, true }, { 4096, 2160, 256, 135, 1188000, 0, false, 88, 88, 128, true, 8, 10, 72, true }, }; static const unsigned char edid_hdmi_mode_map[] = { 95, 94, 93, 98 }; unsigned char hdmi_vic_to_vic(unsigned char hdmi_vic) { if (hdmi_vic > 0 && hdmi_vic <= ARRAY_SIZE(edid_hdmi_mode_map)) return edid_hdmi_mode_map[hdmi_vic - 1]; return 0; } const struct timings *find_vic_id(unsigned char vic) { if (vic > 0 && vic <= ARRAY_SIZE(edid_cta_modes1)) return edid_cta_modes1 + vic - 1; if (vic >= 193 && vic < ARRAY_SIZE(edid_cta_modes2) + 193) return edid_cta_modes2 + vic - 193; return NULL; } const struct timings *find_hdmi_vic_id(unsigned char hdmi_vic) { if (hdmi_vic > 0 && hdmi_vic <= ARRAY_SIZE(edid_hdmi_mode_map)) return find_vic_id(edid_hdmi_mode_map[hdmi_vic - 1]); return NULL; } const struct timings *cta_close_match_to_vic(const timings &t, unsigned &vic) { for (vic = 1; vic <= ARRAY_SIZE(edid_cta_modes1); vic++) { if (timings_close_match(t, edid_cta_modes1[vic - 1])) return &edid_cta_modes1[vic - 1]; } for (vic = 193; vic < ARRAY_SIZE(edid_cta_modes2) + 193; vic++) { if (timings_close_match(t, edid_cta_modes1[vic - 193])) return &edid_cta_modes1[vic - 193]; } vic = 0; return NULL; } void edid_state::cta_list_vics() { char type[16]; for (unsigned vic = 1; vic <= ARRAY_SIZE(edid_cta_modes1); vic++) { sprintf(type, "VIC %3u", vic); print_timings("", &edid_cta_modes1[vic - 1], type, "", false, false); } for (unsigned vic = 193; vic < ARRAY_SIZE(edid_cta_modes2) + 193; vic++) { sprintf(type, "VIC %3u", vic); print_timings("", &edid_cta_modes2[vic - 193], type, "", false, false); } } void edid_state::cta_list_hdmi_vics() { for (unsigned i = 0; i < ARRAY_SIZE(edid_hdmi_mode_map); i++) { unsigned vic = edid_hdmi_mode_map[i]; char type[16]; sprintf(type, "HDMI VIC %u", i + 1); print_timings("", find_vic_id(vic), type, "", false, false); } } static std::string audio_ext_format(unsigned char x) { if (x >= 1 && x <= 3) fail("Obsolete Audio Ext Format 0x%02x.\n", x); switch (x) { case 1: return "HE AAC (Obsolete)"; case 2: return "HE AAC v2 (Obsolete)"; case 3: return "MPEG Surround (Obsolete)"; case 4: return "MPEG-4 HE AAC"; case 5: return "MPEG-4 HE AAC v2"; case 6: return "MPEG-4 AAC LC"; case 7: return "DRA"; case 8: return "MPEG-4 HE AAC + MPEG Surround"; case 10: return "MPEG-4 AAC LC + MPEG Surround"; case 11: return "MPEG-H 3D Audio"; case 12: return "AC-4"; case 13: return "L-PCM 3D Audio"; default: break; } fail("Unknown Audio Ext Format 0x%02x.\n", x); return std::string("Unknown Audio Ext Format (") + utohex(x) + ")"; } static std::string audio_format(unsigned char x) { switch (x) { case 1: return "Linear PCM"; case 2: return "AC-3"; case 3: return "MPEG 1 (Layers 1 & 2)"; case 4: return "MPEG 1 Layer 3 (MP3)"; case 5: return "MPEG2 (multichannel)"; case 6: return "AAC LC"; case 7: return "DTS"; case 8: return "ATRAC"; case 9: return "One Bit Audio"; case 10: return "Enhanced AC-3 (DD+)"; case 11: return "DTS-HD"; case 12: return "MAT (MLP)"; case 13: return "DST"; case 14: return "WMA Pro"; default: break; } fail("Unknown Audio Format 0x%02x.\n", x); return std::string("Unknown Audio Format (") + utohex(x) + ")"; } static std::string mpeg_h_3d_audio_level(unsigned char x) { switch (x) { case 0: return "Unspecified"; case 1: return "Level 1"; case 2: return "Level 2"; case 3: return "Level 3"; case 4: return "Level 4"; case 5: return "Level 5"; default: break; } fail("Unknown MPEG-H 3D Audio Level 0x%02x.\n", x); return std::string("Unknown MPEG-H 3D Audio Level (") + utohex(x) + ")"; } static void cta_audio_block(const unsigned char *x, unsigned length) { unsigned i, format, ext_format; if (length % 3) { fail("Broken CTA-861 audio block length %d.\n", length); return; } for (i = 0; i < length; i += 3) { format = (x[i] & 0x78) >> 3; if (format == 0) { printf(" Reserved (0x00)\n"); fail("Audio Format Code 0x00 is reserved.\n"); continue; } if (format != 15) { ext_format = 0; printf(" %s:\n", audio_format(format).c_str()); } else { ext_format = (x[i + 2] & 0xf8) >> 3; printf(" %s:\n", audio_ext_format(ext_format).c_str()); } if (format != 15) printf(" Max channels: %u\n", (x[i] & 0x07)+1); else if (ext_format == 11) printf(" MPEG-H 3D Audio Level: %s\n", mpeg_h_3d_audio_level(x[i] & 0x07).c_str()); else if (ext_format == 13) printf(" Max channels: %u\n", (((x[i + 1] & 0x80) >> 3) | ((x[i] & 0x80) >> 4) | (x[i] & 0x07))+1); else printf(" Max channels: %u\n", (x[i] & 0x07)+1); printf(" Supported sample rates (kHz):%s%s%s%s%s%s%s\n", (x[i+1] & 0x40) ? " 192" : "", (x[i+1] & 0x20) ? " 176.4" : "", (x[i+1] & 0x10) ? " 96" : "", (x[i+1] & 0x08) ? " 88.2" : "", (x[i+1] & 0x04) ? " 48" : "", (x[i+1] & 0x02) ? " 44.1" : "", (x[i+1] & 0x01) ? " 32" : ""); if (format == 1 || ext_format == 13) { printf(" Supported sample sizes (bits):%s%s%s\n", (x[i+2] & 0x04) ? " 24" : "", (x[i+2] & 0x02) ? " 20" : "", (x[i+2] & 0x01) ? " 16" : ""); } else if (format <= 8) { printf(" Maximum bit rate: %u kb/s\n", x[i+2] * 8); } else if (format == 10) { // As specified by the "Dolby Audio and Dolby Atmos over HDMI" // specification (v1.0). if (x[i+2] & 1) printf(" Supports Joint Object Coding\n"); if (x[i+2] & 2) printf(" Supports Joint Object Coding with ACMOD28\n"); } else if (format == 12) { if (x[i+2] & 1) { printf(" Supports Dolby TrueHD, object audio PCM and channel-based PCM\n"); printf(" Hash calculation %srequired for object audio PCM or channel-based PCM\n", (x[i+2] & 2) ? "not " : ""); } else { printf(" Supports only Dolby TrueHD\n"); } } else if (format == 14) { printf(" Profile: %u\n", x[i+2] & 7); } else if (format >= 9 && format <= 13) { printf(" Audio Format Code dependent value: 0x%02x\n", x[i+2]); } else if (ext_format == 11 && (x[i+2] & 1)) { printf(" Supports MPEG-H 3D Audio Low Complexity Profile\n"); } else if ((ext_format >= 4 && ext_format <= 6) || ext_format == 8 || ext_format == 10) { printf(" AAC audio frame lengths:%s%s\n", (x[i+2] & 4) ? " 1024_TL" : "", (x[i+2] & 2) ? " 960_TL" : ""); if (ext_format >= 8 && (x[i+2] & 1)) printf(" Supports %s signaled MPEG Surround data\n", (x[i+2] & 1) ? "implicitly and explicitly" : "only implicitly"); if (ext_format == 6 && (x[i+2] & 1)) printf(" Supports 22.2ch System H\n"); } } } void edid_state::cta_svd(const unsigned char *x, unsigned n, bool for_ycbcr420) { unsigned i; for (i = 0; i < n; i++) { const struct timings *t = NULL; unsigned char svd = x[i]; unsigned char native; unsigned char vic; if ((svd & 0x7f) == 0) continue; if ((svd - 1) & 0x40) { vic = svd; native = 0; } else { vic = svd & 0x7f; native = svd & 0x80; } t = find_vic_id(vic); if (t) { switch (vic) { case 95: cta.supported_hdmi_vic_vsb_codes |= 1 << 0; break; case 94: cta.supported_hdmi_vic_vsb_codes |= 1 << 1; break; case 93: cta.supported_hdmi_vic_vsb_codes |= 1 << 2; break; case 98: cta.supported_hdmi_vic_vsb_codes |= 1 << 3; break; } bool first_svd = cta.first_svd && !for_ycbcr420; bool override_pref = first_svd && cta.first_svd_might_be_preferred; char type[16]; sprintf(type, "VIC %3u", vic); const char *flags = native ? "native" : ""; if (for_ycbcr420) { struct timings tmp = *t; tmp.ycbcr420 = true; print_timings(" ", &tmp, type, flags); } else { print_timings(" ", t, type, flags); } if (override_pref) { if (!cta.preferred_timings.empty()) { if (match_timings(cta.preferred_timings[0].t, *t)) warn("For improved preferred timing interoperability, set 'Native detailed modes' to 1.\n"); else warn("VIC %u is the preferred timing, overriding the first detailed timings. Is this intended?\n", vic); } cta.preferred_timings.insert(cta.preferred_timings.begin(), timings_ext(*t, type, flags)); } else if (first_svd) { cta.preferred_timings.push_back(timings_ext(*t, type, flags)); } if (first_svd) { cta.first_svd = false; cta.first_svd_might_be_preferred = false; } if (native) cta.native_timings.push_back(timings_ext(*t, type, flags)); } else { printf(" Unknown (VIC %3u)\n", vic); fail("Unknown VIC %u.\n", vic); } if (vic == 1 && !for_ycbcr420) cta.has_vic_1 = 1; if (++cta.vics[vic][for_ycbcr420] == 2) fail("Duplicate %sVIC %u.\n", for_ycbcr420 ? "YCbCr 4:2:0 " : "", vic); if (for_ycbcr420 && cta.preparsed_has_vic[0][vic]) fail("YCbCr 4:2:0-only VIC %u is also a regular VIC.\n", vic); } } void edid_state::print_vic_index(const char *prefix, unsigned idx, const char *suffix, bool ycbcr420) { if (!suffix) suffix = ""; if (idx < cta.preparsed_svds[0].size()) { unsigned char vic = cta.preparsed_svds[0][idx]; const struct timings *t = find_vic_id(vic); char buf[16]; sprintf(buf, "VIC %3u", vic); if (t) { struct timings tmp = *t; tmp.ycbcr420 = ycbcr420; print_timings(prefix, &tmp, buf, suffix); } else { printf("%sUnknown (%s%s%s)\n", prefix, buf, *suffix ? ", " : "", suffix); } } else { // Should not happen! printf("%sSVD Index %u is out of range", prefix, idx + 1); if (*suffix) printf(" (%s)", suffix); printf("\n"); } } void edid_state::cta_y420cmdb(const unsigned char *x, unsigned length) { unsigned max_idx = 0; unsigned i; if (!length) { printf(" All VDB SVDs\n"); return; } if (memchk(x, length)) { printf(" Empty Capability Map\n"); fail("Empty Capability Map.\n"); return; } for (i = 0; i < length; i++) { unsigned char v = x[i]; unsigned j; for (j = 0; j < 8; j++) { if (!(v & (1 << j))) continue; print_vic_index(" ", i * 8 + j, "", true); max_idx = i * 8 + j; if (max_idx < cta.preparsed_svds[0].size()) { unsigned vic = cta.preparsed_svds[0][max_idx]; if (cta.preparsed_has_vic[1][vic]) fail("VIC %u is also a YCbCr 4:2:0-only VIC.\n", vic); } } } if (max_idx >= cta.preparsed_svds[0].size()) fail("Max index %u > %u (#SVDs).\n", max_idx + 1, cta.preparsed_svds[0].size()); } void edid_state::cta_vfpdb(const unsigned char *x, unsigned length) { unsigned i; if (length == 0) { fail("Empty Data Block with length %u.\n", length); return; } cta.preferred_timings.clear(); for (i = 0; i < length; i++) { unsigned char svr = x[i]; char suffix[16]; if ((svr > 0 && svr < 128) || (svr > 192 && svr < 254)) { const struct timings *t; unsigned char vic = svr; sprintf(suffix, "VIC %3u", vic); t = find_vic_id(vic); if (t) { print_timings(" ", t, suffix); cta.preferred_timings.push_back(timings_ext(*t, suffix, "")); } else { printf(" %s: Unknown\n", suffix); fail("Unknown VIC %u.\n", vic); } } else if (svr >= 129 && svr <= 144) { sprintf(suffix, "DTD %3u", svr - 128); if (svr >= cta.preparsed_total_dtds + 129) { printf(" %s: Invalid\n", suffix); fail("Invalid DTD %u.\n", svr - 128); } else { printf(" %s\n", suffix); cta.preferred_timings.push_back(timings_ext(svr, suffix)); } } else if (svr >= 145 && svr <= 160) { sprintf(suffix, "VTDB %3u", svr - 144); if (svr >= cta.preparsed_total_vtdbs + 145) { printf(" %s: Invalid\n", suffix); fail("Invalid VTDB %u.\n", svr - 144); } else { printf(" %s\n", suffix); cta.preferred_timings.push_back(timings_ext(svr, suffix)); } } else if (svr == 254) { sprintf(suffix, "T8VTDB"); if (!cta.preparsed_has_t8vtdb) { printf(" %s: Invalid\n", suffix); fail("Invalid T8VTDB.\n"); } else { printf(" %s\n", suffix); cta.preferred_timings.push_back(timings_ext(svr, suffix)); } } } } static std::string hdmi_latency2s(unsigned char l, bool is_video) { if (!l) return "Unknown"; if (l == 0xff) return is_video ? "Video not supported" : "Audio not supported"; return std::to_string(1 + 2 * l) + " ms"; } void edid_state::hdmi_latency(unsigned char vid_lat, unsigned char aud_lat, bool is_ilaced) { const char *vid = is_ilaced ? "Interlaced video" : "Video"; const char *aud = is_ilaced ? "Interlaced audio" : "Audio"; printf(" %s latency: %s\n", vid, hdmi_latency2s(vid_lat, true).c_str()); printf(" %s latency: %s\n", aud, hdmi_latency2s(aud_lat, false).c_str()); if (vid_lat > 251 && vid_lat != 0xff) fail("Invalid %s latency value %u.\n", vid, vid_lat); if (aud_lat > 251 && aud_lat != 0xff) fail("Invalid %s latency value %u.\n", aud, aud_lat); if (!vid_lat || vid_lat > 251) return; if (!aud_lat || aud_lat > 251) return; unsigned vid_ms = 1 + 2 * vid_lat; unsigned aud_ms = 1 + 2 * aud_lat; // HDMI 2.0 latency checks for devices without HDMI output if (aud_ms < vid_ms) warn("%s latency < %s latency (%u ms < %u ms). This is discouraged for devices without HDMI output.\n", aud, vid, aud_ms, vid_ms); else if (vid_ms + 20 < aud_ms) warn("%s latency + 20 < %s latency (%u + 20 ms < %u ms). This is forbidden for devices without HDMI output.\n", vid, aud, vid_ms, aud_ms); else if (vid_ms < aud_ms) warn("%s latency < %s latency (%u ms < %u ms). This is discouraged for devices without HDMI output.\n", vid, aud, vid_ms, aud_ms); } void edid_state::cta_hdmi_block(const unsigned char *x, unsigned length) { unsigned len_vic, len_3d; if (length < 4) { fail("Empty Data Block with length %u.\n", length); return; } printf(" Source physical address: %x.%x.%x.%x\n", x[3] >> 4, x[3] & 0x0f, x[4] >> 4, x[4] & 0x0f); if (length < 6) return; if (x[5] & 0x80) printf(" Supports_AI\n"); if (x[5] & 0x40) printf(" DC_48bit\n"); if (x[5] & 0x20) printf(" DC_36bit\n"); if (x[5] & 0x10) printf(" DC_30bit\n"); if (x[5] & 0x08) printf(" DC_Y444\n"); /* two reserved bits */ if (x[5] & 0x01) printf(" DVI_Dual\n"); if (length < 7) return; printf(" Maximum TMDS clock: %u MHz\n", x[6] * 5); if (x[6] * 5 > 340) fail("HDMI VSDB Max TMDS rate is > 340.\n"); if (length < 8) return; if (x[7] & 0x0f) { printf(" Supported Content Types:\n"); if (x[7] & 0x01) printf(" Graphics\n"); if (x[7] & 0x02) printf(" Photo\n"); if (x[7] & 0x04) printf(" Cinema\n"); if (x[7] & 0x08) printf(" Game\n"); } unsigned b = 8; if (x[7] & 0x80) { hdmi_latency(x[b], x[b + 1], false); if (x[7] & 0x40) { if (x[b] == x[b + 2] && x[b + 1] == x[b + 3]) warn("Progressive and Interlaced latency values are identical, no need for both.\n"); b += 2; hdmi_latency(x[b], x[b + 1], true); } b += 2; } if (!(x[7] & 0x20)) return; bool mask = false; bool formats = false; printf(" Extended HDMI video details:\n"); if (x[b] & 0x80) printf(" 3D present\n"); if ((x[b] & 0x60) == 0x20) { printf(" All advertised VICs are 3D-capable\n"); formats = true; } if ((x[b] & 0x60) == 0x40) { printf(" 3D-capable-VIC mask present\n"); formats = true; mask = true; } switch (x[b] & 0x18) { case 0x00: break; case 0x08: printf(" Base EDID image size is aspect ratio\n"); break; case 0x10: printf(" Base EDID image size is in units of 1 cm\n"); break; case 0x18: printf(" Base EDID image size is in units of 5 cm\n"); base.max_display_width_mm *= 5; base.max_display_height_mm *= 5; printf(" Recalculated image size: %u cm x %u cm\n", base.max_display_width_mm / 10, base.max_display_height_mm / 10); break; } b++; len_vic = (x[b] & 0xe0) >> 5; len_3d = (x[b] & 0x1f) >> 0; b++; if (len_vic) { unsigned i; printf(" HDMI VICs:\n"); for (i = 0; i < len_vic; i++) { unsigned char vic = x[b + i]; const struct timings *t; if (vic && vic <= ARRAY_SIZE(edid_hdmi_mode_map)) { std::string suffix = "HDMI VIC " + std::to_string(vic); cta.supported_hdmi_vic_codes |= 1 << (vic - 1); t = find_vic_id(edid_hdmi_mode_map[vic - 1]); print_timings(" ", t, suffix.c_str()); } else { printf(" Unknown (HDMI VIC %u)\n", vic); fail("Unknown HDMI VIC %u.\n", vic); } } b += len_vic; } if (!len_3d) return; if (formats) { /* 3D_Structure_ALL_15..8 */ if (x[b] & 0x80) printf(" 3D: Side-by-side (half, quincunx)\n"); if (x[b] & 0x01) printf(" 3D: Side-by-side (half, horizontal)\n"); /* 3D_Structure_ALL_7..0 */ b++; if (x[b] & 0x40) printf(" 3D: Top-and-bottom\n"); if (x[b] & 0x20) printf(" 3D: L + depth + gfx + gfx-depth\n"); if (x[b] & 0x10) printf(" 3D: L + depth\n"); if (x[b] & 0x08) printf(" 3D: Side-by-side (full)\n"); if (x[b] & 0x04) printf(" 3D: Line-alternative\n"); if (x[b] & 0x02) printf(" 3D: Field-alternative\n"); if (x[b] & 0x01) printf(" 3D: Frame-packing\n"); b++; len_3d -= 2; } if (mask) { int max_idx = -1; unsigned i; printf(" 3D VIC indices that support these capabilities:\n"); /* worst bit ordering ever */ for (i = 0; i < 8; i++) if (x[b + 1] & (1 << i)) { print_vic_index(" ", i, ""); max_idx = i; } for (i = 0; i < 8; i++) if (x[b] & (1 << i)) { print_vic_index(" ", i + 8, ""); max_idx = i + 8; } b += 2; len_3d -= 2; if (max_idx >= (int)cta.preparsed_svds[0].size()) fail("HDMI 3D VIC indices max index %d > %u (#SVDs).\n", max_idx + 1, cta.preparsed_svds[0].size()); } /* * list of nibbles: * 2D_VIC_Order_X * 3D_Structure_X * (optionally: 3D_Detail_X and reserved) */ if (!len_3d) return; unsigned end = b + len_3d; int max_idx = -1; printf(" 3D VIC indices with specific capabilities:\n"); while (b < end) { unsigned char idx = x[b] >> 4; std::string s; if (idx > max_idx) max_idx = idx; switch (x[b] & 0x0f) { case 0: s = "frame packing"; break; case 1: s = "field alternative"; break; case 2: s = "line alternative"; break; case 3: s = "side-by-side (full)"; break; case 4: s = "L + depth"; break; case 5: s = "L + depth + gfx + gfx-depth"; break; case 6: s = "top-and-bottom"; break; case 8: s = "side-by-side"; switch (x[b + 1] >> 4) { case 0x00: s += ", any subsampling"; break; case 0x01: s += ", horizontal"; break; case 0x02: case 0x03: case 0x04: case 0x05: s += ", not in use"; fail("not-in-use 3D_Detail_X value 0x%02x.\n", x[b + 1] >> 4); break; case 0x06: s += ", all quincunx combinations"; break; case 0x07: s += ", quincunx odd/left, odd/right"; break; case 0x08: s += ", quincunx odd/left, even/right"; break; case 0x09: s += ", quincunx even/left, odd/right"; break; case 0x0a: s += ", quincunx even/left, even/right"; break; default: s += ", reserved"; fail("reserved 3D_Detail_X value 0x%02x.\n", x[b + 1] >> 4); break; } break; default: s = "unknown ("; s += utohex(x[b] & 0x0f) + ")"; fail("Unknown 3D_Structure_X value 0x%02x.\n", x[b] & 0x0f); break; } print_vic_index(" ", idx, s.c_str()); if ((x[b] & 0x0f) >= 8) b++; b++; } if (max_idx >= (int)cta.preparsed_svds[0].size()) fail("HDMI 2D VIC indices max index %d > %u (#SVDs).\n", max_idx + 1, cta.preparsed_svds[0].size()); } static const char *max_frl_rates[] = { "Not Supported", "3 Gbps per lane on 3 lanes", "3 and 6 Gbps per lane on 3 lanes", "3 and 6 Gbps per lane on 3 lanes, 6 Gbps on 4 lanes", "3 and 6 Gbps per lane on 3 lanes, 6 and 8 Gbps on 4 lanes", "3 and 6 Gbps per lane on 3 lanes, 6, 8 and 10 Gbps on 4 lanes", "3 and 6 Gbps per lane on 3 lanes, 6, 8, 10 and 12 Gbps on 4 lanes", }; static const char *dsc_max_slices[] = { "Not Supported", "up to 1 slice and up to (340 MHz/Ksliceadjust) pixel clock per slice", "up to 2 slices and up to (340 MHz/Ksliceadjust) pixel clock per slice", "up to 4 slices and up to (340 MHz/Ksliceadjust) pixel clock per slice", "up to 8 slices and up to (340 MHz/Ksliceadjust) pixel clock per slice", "up to 8 slices and up to (400 MHz/Ksliceadjust) pixel clock per slice", "up to 12 slices and up to (400 MHz/Ksliceadjust) pixel clock per slice", "up to 16 slices and up to (400 MHz/Ksliceadjust) pixel clock per slice", }; static void cta_hf_eeodb(const unsigned char *x, unsigned length) { printf(" EDID Extension Block Count: %u\n", x[0]); if (length != 1 || x[0] == 0) fail("Block is too long or reports a 0 block count.\n"); } static void cta_hf_scdb(const unsigned char *x, unsigned length) { unsigned rate = x[1] * 5; printf(" Version: %u\n", x[0]); if (rate) { printf(" Maximum TMDS Character Rate: %u MHz\n", rate); if (rate <= 340 || rate > 600) fail("Max TMDS rate is > 0 and <= 340 or > 600.\n"); } if (x[2] & 0x80) printf(" SCDC Present\n"); if (x[2] & 0x40) printf(" SCDC Read Request Capable\n"); if (x[2] & 0x10) printf(" Supports Color Content Bits Per Component Indication\n"); if (x[2] & 0x08) printf(" Supports scrambling for <= 340 Mcsc\n"); if (x[2] & 0x04) printf(" Supports 3D Independent View signaling\n"); if (x[2] & 0x02) printf(" Supports 3D Dual View signaling\n"); if (x[2] & 0x01) printf(" Supports 3D OSD Disparity signaling\n"); if (x[3] & 0xf0) { unsigned max_frl_rate = x[3] >> 4; printf(" Max Fixed Rate Link: "); if (max_frl_rate < ARRAY_SIZE(max_frl_rates)) { printf("%s\n", max_frl_rates[max_frl_rate]); } else { printf("Unknown (0x%02x)\n", max_frl_rate); fail("Unknown Max Fixed Rate Link (0x%02x).\n", max_frl_rate); } if (max_frl_rate == 1 && rate < 300) fail("Max Fixed Rate Link is 1, but Max TMDS rate < 300.\n"); else if (max_frl_rate >= 2 && rate < 600) fail("Max Fixed Rate Link is >= 2, but Max TMDS rate < 600.\n"); } if (x[3] & 0x08) printf(" Supports UHD VIC\n"); if (x[3] & 0x04) printf(" Supports 16-bits/component Deep Color 4:2:0 Pixel Encoding\n"); if (x[3] & 0x02) printf(" Supports 12-bits/component Deep Color 4:2:0 Pixel Encoding\n"); if (x[3] & 0x01) printf(" Supports 10-bits/component Deep Color 4:2:0 Pixel Encoding\n"); if (length <= 4) return; if (x[4] & 0x20) printf(" Supports Mdelta\n"); if (x[4] & 0x10) printf(" Supports media rates below VRRmin (CinemaVRR)\n"); if (x[4] & 0x08) printf(" Supports negative Mvrr values\n"); if (x[4] & 0x04) printf(" Supports Fast Vactive\n"); if (x[4] & 0x02) printf(" Supports Auto Low-Latency Mode\n"); if (x[4] & 0x01) printf(" Supports a FAPA in blanking after first active video line\n"); if (length <= 5) return; printf(" VRRmin: %d Hz\n", x[5] & 0x3f); printf(" VRRmax: %d Hz\n", (x[5] & 0xc0) << 2 | x[6]); if (length <= 7) return; if (x[7] & 0x80) printf(" Supports VESA DSC 1.2a compression\n"); if (x[7] & 0x40) printf(" Supports Compressed Video Transport for 4:2:0 Pixel Encoding\n"); if (x[7] & 0x08) printf(" Supports Compressed Video Transport at any valid 1/16th bit bpp\n"); if (x[7] & 0x04) printf(" Supports 16 bpc Compressed Video Transport\n"); if (x[7] & 0x02) printf(" Supports 12 bpc Compressed Video Transport\n"); if (x[7] & 0x01) printf(" Supports 10 bpc Compressed Video Transport\n"); if (x[8] & 0xf) { unsigned max_slices = x[8] & 0xf; printf(" DSC Max Slices: "); if (max_slices < ARRAY_SIZE(dsc_max_slices)) { printf("%s\n", dsc_max_slices[max_slices]); } else { printf("Unknown (0x%02x)\n", max_slices); fail("Unknown DSC Max Slices (0x%02x).\n", max_slices); } } if (x[8] & 0xf0) { unsigned max_frl_rate = x[8] >> 4; printf(" DSC Max Fixed Rate Link: "); if (max_frl_rate < ARRAY_SIZE(max_frl_rates)) { printf("%s\n", max_frl_rates[max_frl_rate]); } else { printf("Unknown (0x%02x)\n", max_frl_rate); fail("Unknown DSC Max Fixed Rate Link (0x%02x).\n", max_frl_rate); } } if (x[9] & 0x3f) printf(" Maximum number of bytes in a line of chunks: %u\n", 1024 * (1 + (x[9] & 0x3f))); } static void cta_amd(const unsigned char *x, unsigned length) { // These Freesync values are reversed engineered by looking // at existing EDIDs. printf(" Version: %u.%u\n", x[0], x[1]); printf(" Minimum Refresh Rate: %u Hz\n", x[2]); printf(" Maximum Refresh Rate: %u Hz\n", x[3]); // Freesync 1.x flags // One or more of the 0xe6 bits signal that the VESA MCCS // protocol is used to switch the Freesync range printf(" Flags 1.x: 0x%02x%s\n", x[4], (x[4] & 0xe6) ? " (MCCS)" : ""); if (length >= 10) { // Freesync 2.x flags // Bit 2 no doubt indicates if the monitor supports Local Dimming // There are probably also bits to signal support of the // FreeSync2_scRGB and FreeSync2_Gamma22 HDR display modes. // I suspect bits 0 and 1. printf(" Flags 2.x: 0x%02x\n", x[5]); // The AMD tone mapping tutorial referred to in the URL below // mentions that the Freesync HDR info reports max/min // luminance of the monitor with and without local dimming. // // https://gpuopen.com/learn/using-amd-freesync-premium-pro-hdr-code-samples/ // // So I assume that the first two luminance values are // the max/min luminance of the display and the next two // luminance values are the max/min luminance values when // local dimming is disabled. The values I get seem to // support that. printf(" Maximum luminance: %u (%.3f cd/m^2)\n", x[6], 50.0 * pow(2, x[6] / 32.0)); printf(" Minimum luminance: %u (%.3f cd/m^2)\n", x[7], (50.0 * pow(2, x[6] / 32.0)) * pow(x[7] / 255.0, 2) / 100.0); if (x[5] & 4) { // One or both bytes can be 0. The meaning of that // is unknown. printf(" Maximum luminance (without local dimming): %u (%.3f cd/m^2)\n", x[8], 50.0 * pow(2, x[8] / 32.0)); printf(" Minimum luminance (without local dimming): %u (%.3f cd/m^2)\n", x[9], (50.0 * pow(2, x[8] / 32.0)) * pow(x[9] / 255.0, 2) / 100.0); } else { // These bytes are always 0x08 0x2f. If these values // represent max/min luminance as well, then these // would map to 59.460 and 0.020 cd/m^2 respectively. // I wonder if this somehow relates to SDR. printf(" Unknown: 0x%02x 0x%02x\n", x[8], x[9]); } } } static std::string display_use_case(unsigned char x) { switch (x) { case 1: return "Test equipment"; case 2: return "Generic display"; case 3: return "Television display"; case 4: return "Desktop productivity display"; case 5: return "Desktop gaming display"; case 6: return "Presentation display"; case 7: return "Virtual reality headset"; case 8: return "Augmented reality"; case 16: return "Video wall display"; case 17: return "Medical imaging display"; case 18: return "Dedicated gaming display"; case 19: return "Dedicated video monitor display"; case 20: return "Accessory display"; default: break; } fail("Unknown Display product primary use case 0x%02x.\n", x); return std::string("Unknown display use case (") + utohex(x) + ")"; } static void cta_microsoft(const unsigned char *x, unsigned length) { // This VSDB is documented at: // https://docs.microsoft.com/en-us/windows-hardware/drivers/display/specialized-monitors-edid-extension printf(" Version: %u\n", x[0]); if (x[0] > 2) { // In version 1 and 2 these bits should always be set to 0. printf(" Desktop Usage: %u\n", (x[1] >> 6) & 1); printf(" Third-Party Usage: %u\n", (x[1] >> 5) & 1); } printf(" Display Product Primary Use Case: %u (%s)\n", x[1] & 0x1f, display_use_case(x[1] & 0x1f).c_str()); printf(" Container ID: %s\n", containerid2s(x + 2).c_str()); } static void cta_hdr10plus(const unsigned char *x, unsigned length) { printf(" Application Version: %u", x[0]); if (length > 1) hex_block(" ", x + 1, length - 1); else printf("\n"); } static void cta_dolby_video(const unsigned char *x, unsigned length) { unsigned char version = (x[0] >> 5) & 0x07; printf(" Version: %u (%u bytes)\n", version, length + 5); if (x[0] & 0x01) printf(" Supports YUV422 12 bit\n"); if (version == 0) { if (x[0] & 0x02) printf(" Supports 2160p60\n"); if (x[0] & 0x04) printf(" Supports global dimming\n"); unsigned char dm_version = x[16]; printf(" DM Version: %u.%u\n", dm_version >> 4, dm_version & 0xf); printf(" Target Min PQ: %u\n", (x[14] << 4) | (x[13] >> 4)); printf(" Target Max PQ: %u\n", (x[15] << 4) | (x[13] & 0xf)); printf(" Rx, Ry: %.8f, %.8f\n", ((x[1] >> 4) | (x[2] << 4)) / 4096.0, ((x[1] & 0xf) | (x[3] << 4)) / 4096.0); printf(" Gx, Gy: %.8f, %.8f\n", ((x[4] >> 4) | (x[5] << 4)) / 4096.0, ((x[4] & 0xf) | (x[6] << 4)) / 4096.0); printf(" Bx, By: %.8f, %.8f\n", ((x[7] >> 4) | (x[8] << 4)) / 4096.0, ((x[7] & 0xf) | (x[9] << 4)) / 4096.0); printf(" Wx, Wy: %.8f, %.8f\n", ((x[10] >> 4) | (x[11] << 4)) / 4096.0, ((x[10] & 0xf) | (x[12] << 4)) / 4096.0); return; } if (version == 1) { if (x[0] & 0x02) printf(" Supports 2160p60\n"); if (x[1] & 0x01) printf(" Supports global dimming\n"); unsigned char dm_version = (x[0] >> 2) & 0x07; printf(" DM Version: %u.x\n", dm_version + 2); printf(" Colorimetry: %s\n", (x[2] & 0x01) ? "P3-D65" : "ITU-R BT.709"); printf(" Low Latency: %s\n", (x[3] & 0x01) ? "Standard + Low Latency" : "Only Standard"); printf(" Target Max Luminance: %u cd/m^2\n", 100 + (x[1] >> 1) * 50); double lm = (x[2] >> 1) / 127.0; printf(" Target Min Luminance: %.8f cd/m^2\n", lm * lm); if (length == 10) { printf(" Rx, Ry: %.8f, %.8f\n", x[4] / 256.0, x[5] / 256.0); printf(" Gx, Gy: %.8f, %.8f\n", x[6] / 256.0, x[7] / 256.0); printf(" Bx, By: %.8f, %.8f\n", x[8] / 256.0, x[9] / 256.0); } else { double xmin = 0.625; double xstep = (0.74609375 - xmin) / 31.0; double ymin = 0.25; double ystep = (0.37109375 - ymin) / 31.0; printf(" Unique Rx, Ry: %.8f, %.8f\n", xmin + xstep * (x[6] >> 3), ymin + ystep * (((x[6] & 0x7) << 2) | (x[4] & 0x01) | ((x[5] & 0x01) << 1))); xstep = 0.49609375 / 127.0; ymin = 0.5; ystep = (0.99609375 - ymin) / 127.0; printf(" Unique Gx, Gy: %.8f, %.8f\n", xstep * (x[4] >> 1), ymin + ystep * (x[5] >> 1)); xmin = 0.125; xstep = (0.15234375 - xmin) / 7.0; ymin = 0.03125; ystep = (0.05859375 - ymin) / 7.0; printf(" Unique Bx, By: %.8f, %.8f\n", xmin + xstep * (x[3] >> 5), ymin + ystep * ((x[3] >> 2) & 0x07)); } return; } if (version == 2) { if (x[0] & 0x02) printf(" Supports Backlight Control\n"); if (x[1] & 0x04) printf(" Supports global dimming\n"); unsigned char dm_version = (x[0] >> 2) & 0x07; printf(" DM Version: %u.x\n", dm_version + 2); printf(" Backlt Min Luma: %u cd/m^2\n", 25 + (x[1] & 0x03) * 25); printf(" Interface: "); switch (x[2] & 0x03) { case 0: printf("Low-Latency\n"); break; case 1: printf("Low-Latency + Low-Latency-HDMI\n"); break; case 2: printf("Standard + Low-Latency\n"); break; case 3: printf("Standard + Low-Latency + Low-Latency-HDMI\n"); break; } printf(" Supports 10b 12b 444: "); switch ((x[3] & 0x01) << 1 | (x[4] & 0x01)) { case 0: printf("Not supported\n"); break; case 1: printf("10 bit\n"); break; case 2: printf("12 bit\n"); break; case 3: printf("Reserved\n"); break; } printf(" Target Min PQ v2: %u\n", 20 * (x[1] >> 3)); printf(" Target Max PQ v2: %u\n", 2055 + 65 * (x[2] >> 3)); double xmin = 0.625; double xstep = (0.74609375 - xmin) / 31.0; double ymin = 0.25; double ystep = (0.37109375 - ymin) / 31.0; printf(" Unique Rx, Ry: %.8f, %.8f\n", xmin + xstep * (x[5] >> 3), ymin + ystep * (x[6] >> 3)); xstep = 0.49609375 / 127.0; ymin = 0.5; ystep = (0.99609375 - ymin) / 127.0; printf(" Unique Gx, Gy: %.8f, %.8f\n", xstep * (x[3] >> 1), ymin + ystep * (x[4] >> 1)); xmin = 0.125; xstep = (0.15234375 - xmin) / 7.0; ymin = 0.03125; ystep = (0.05859375 - ymin) / 7.0; printf(" Unique Bx, By: %.8f, %.8f\n", xmin + xstep * (x[5] & 0x07), ymin + ystep * (x[6] & 0x07)); } } static void cta_dolby_audio(const unsigned char *x, unsigned length) { unsigned char version = 1 + (x[0] & 0x07); printf(" Version: %u (%u bytes)\n", version, length + 5); if (x[0] & 0x80) printf(" Headphone playback only\n"); if (x[0] & 0x40) printf(" Height speaker zone present\n"); if (x[0] & 0x20) printf(" Surround speaker zone present\n"); if (x[0] & 0x10) printf(" Center speaker zone present\n"); if (x[1] & 0x01) printf(" Supports Dolby MAT PCM decoding at 48 kHz only, does not support TrueHD\n"); } static const char *speaker_map[] = { "FL/FR - Front Left/Right", "LFE1 - Low Frequency Effects 1", "FC - Front Center", "BL/BR - Back Left/Right", "BC - Back Center", "FLc/FRc - Front Left/Right of Center", "RLC/RRC - Rear Left/Right of Center (Deprecated)", "FLw/FRw - Front Left/Right Wide", "TpFL/TpFR - Top Front Left/Right", "TpC - Top Center", "TpFC - Top Front Center", "LS/RS - Left/Right Surround", "LFE2 - Low Frequency Effects 2", "TpBC - Top Back Center", "SiL/SiR - Side Left/Right", "TpSiL/TpSiR - Top Side Left/Right", "TpBL/TpBR - Top Back Left/Right", "BtFC - Bottom Front Center", "BtFL/BtFR - Bottom Front Left/Right", "TpLS/TpRS - Top Left/Right Surround (Deprecated for CTA-861)", "LSd/RSd - Left/Right Surround Direct (HDMI only)", }; static void cta_sadb(const unsigned char *x, unsigned length) { unsigned sad; unsigned i; if (length < 3) { fail("Empty Data Block with length %u.\n", length); return; } sad = ((x[2] << 16) | (x[1] << 8) | x[0]); for (i = 0; i < ARRAY_SIZE(speaker_map); i++) { if ((sad >> i) & 1) printf(" %s\n", speaker_map[i]); } } static void cta_vesa_dtcdb(const unsigned char *x, unsigned length) { if (length != 7 && length != 15 && length != 31) { fail("Invalid length %u.\n", length); return; } switch (x[0] >> 6) { case 0: printf(" White"); break; case 1: printf(" Red"); break; case 2: printf(" Green"); break; case 3: printf(" Blue"); break; } unsigned v = x[0] & 0x3f; printf(" transfer characteristics: %u", v); for (unsigned i = 1; i < length; i++) printf(" %u", v += x[i]); printf(" 1023\n"); } static void cta_vesa_vdddb(const unsigned char *x, unsigned length) { if (length != 30) { fail("Invalid length %u.\n", length); return; } printf(" Interface Type: "); unsigned char v = x[0]; switch (v >> 4) { case 0: printf("Analog ("); switch (v & 0xf) { case 0: printf("15HD/VGA"); break; case 1: printf("VESA NAVI-V (15HD)"); break; case 2: printf("VESA NAVI-D"); break; default: printf("Reserved"); break; } printf(")\n"); break; case 1: printf("LVDS %u lanes", v & 0xf); break; case 2: printf("RSDS %u lanes", v & 0xf); break; case 3: printf("DVI-D %u channels", v & 0xf); break; case 4: printf("DVI-I analog"); break; case 5: printf("DVI-I digital %u channels", v & 0xf); break; case 6: printf("HDMI-A"); break; case 7: printf("HDMI-B"); break; case 8: printf("MDDI %u channels", v & 0xf); break; case 9: printf("DisplayPort %u channels", v & 0xf); break; case 10: printf("IEEE-1394"); break; case 11: printf("M1 analog"); break; case 12: printf("M1 digital %u channels", v & 0xf); break; default: printf("Reserved"); break; } printf("\n"); printf(" Interface Standard Version: %u.%u\n", x[1] >> 4, x[1] & 0xf); printf(" Content Protection Support: "); switch (x[2]) { case 0: printf("None\n"); break; case 1: printf("HDCP\n"); break; case 2: printf("DTCP\n"); break; case 3: printf("DPCP\n"); break; default: printf("Reserved\n"); break; } printf(" Minimum Clock Frequency: %u MHz\n", x[3] >> 2); printf(" Maximum Clock Frequency: %u MHz\n", ((x[3] & 0x03) << 8) | x[4]); printf(" Device Native Pixel Format: %ux%u\n", x[5] | (x[6] << 8), x[7] | (x[8] << 8)); printf(" Aspect Ratio: %.2f\n", (100 + x[9]) / 100.0); v = x[0x0a]; printf(" Default Orientation: "); switch ((v & 0xc0) >> 6) { case 0x00: printf("Landscape\n"); break; case 0x01: printf("Portrait\n"); break; case 0x02: printf("Not Fixed\n"); break; case 0x03: printf("Undefined\n"); break; } printf(" Rotation Capability: "); switch ((v & 0x30) >> 4) { case 0x00: printf("None\n"); break; case 0x01: printf("Can rotate 90 degrees clockwise\n"); break; case 0x02: printf("Can rotate 90 degrees counterclockwise\n"); break; case 0x03: printf("Can rotate 90 degrees in either direction)\n"); break; } printf(" Zero Pixel Location: "); switch ((v & 0x0c) >> 2) { case 0x00: printf("Upper Left\n"); break; case 0x01: printf("Upper Right\n"); break; case 0x02: printf("Lower Left\n"); break; case 0x03: printf("Lower Right\n"); break; } printf(" Scan Direction: "); switch (v & 0x03) { case 0x00: printf("Not defined\n"); break; case 0x01: printf("Fast Scan is on the Major (Long) Axis and Slow Scan is on the Minor Axis\n"); break; case 0x02: printf("Fast Scan is on the Minor (Short) Axis and Slow Scan is on the Major Axis\n"); break; case 0x03: printf("Reserved\n"); fail("Scan Direction used the reserved value 0x03.\n"); break; } printf(" Subpixel Information: "); switch (x[0x0b]) { case 0x00: printf("Not defined\n"); break; case 0x01: printf("RGB vertical stripes\n"); break; case 0x02: printf("RGB horizontal stripes\n"); break; case 0x03: printf("Vertical stripes using primary order\n"); break; case 0x04: printf("Horizontal stripes using primary order\n"); break; case 0x05: printf("Quad sub-pixels, red at top left\n"); break; case 0x06: printf("Quad sub-pixels, red at bottom left\n"); break; case 0x07: printf("Delta (triad) RGB sub-pixels\n"); break; case 0x08: printf("Mosaic\n"); break; case 0x09: printf("Quad sub-pixels, RGB + 1 additional color\n"); break; case 0x0a: printf("Five sub-pixels, RGB + 2 additional colors\n"); break; case 0x0b: printf("Six sub-pixels, RGB + 3 additional colors\n"); break; case 0x0c: printf("Clairvoyante, Inc. PenTile Matrix (tm) layout\n"); break; default: printf("Reserved\n"); break; } printf(" Horizontal and vertical dot/pixel pitch: %.2f x %.2f mm\n", (double)(x[0x0c]) / 100.0, (double)(x[0x0d]) / 100.0); v = x[0x0e]; printf(" Dithering: "); switch (v >> 6) { case 0: printf("None\n"); break; case 1: printf("Spatial\n"); break; case 2: printf("Temporal\n"); break; case 3: printf("Spatial and Temporal\n"); break; } printf(" Direct Drive: %s\n", (v & 0x20) ? "Yes" : "No"); printf(" Overdrive %srecommended\n", (v & 0x10) ? "not " : ""); printf(" Deinterlacing: %s\n", (v & 0x08) ? "Yes" : "No"); v = x[0x0f]; printf(" Audio Support: %s\n", (v & 0x80) ? "Yes" : "No"); printf(" Separate Audio Inputs Provided: %s\n", (v & 0x40) ? "Yes" : "No"); printf(" Audio Input Override: %s\n", (v & 0x20) ? "Yes" : "No"); v = x[0x10]; if (v) printf(" Audio Delay: %s%u ms\n", (v & 0x80) ? "" : "-", (v & 0x7f) * 2); else printf(" Audio Delay: no information provided\n"); v = x[0x11]; printf(" Frame Rate/Mode Conversion: "); switch (v >> 6) { case 0: printf("None\n"); break; case 1: printf("Single Buffering\n"); break; case 2: printf("Double Buffering\n"); break; case 3: printf("Advanced Frame Rate Conversion\n"); break; } if (v & 0x3f) printf(" Frame Rate Range: %u fps +/- %u fps\n", x[0x12], v & 0x3f); else printf(" Nominal Frame Rate: %u fps\n", x[0x12]); printf(" Color Bit Depth: %u @ interface, %u @ display\n", (x[0x13] >> 4) + 1, (x[0x13] & 0xf) + 1); v = x[0x15] & 3; if (v) { printf(" Additional Primary Chromaticities:\n"); unsigned col_x = (x[0x16] << 2) | (x[0x14] >> 6); unsigned col_y = (x[0x17] << 2) | ((x[0x14] >> 4) & 3); printf(" Primary 4: 0.%04u, 0.%04u\n", (col_x * 10000) / 1024, (col_y * 10000) / 1024); if (v > 1) { col_x = (x[0x18] << 2) | ((x[0x14] >> 2) & 3); col_y = (x[0x19] << 2) | (x[0x14] & 3); printf(" Primary 5: 0.%04u, 0.%04u\n", (col_x * 10000) / 1024, (col_y * 10000) / 1024); if (v > 2) { col_x = (x[0x1a] << 2) | (x[0x15] >> 6); col_y = (x[0x1b] << 2) | ((x[0x15] >> 4) & 3); printf(" Primary 6: 0.%04u, 0.%04u\n", (col_x * 10000) / 1024, (col_y * 10000) / 1024); } } } v = x[0x1c]; printf(" Response Time %s: %u ms\n", (v & 0x80) ? "White -> Black" : "Black -> White", v & 0x7f); v = x[0x1d]; printf(" Overscan: %u%% x %u%%\n", v >> 4, v & 0xf); } static double decode_uchar_as_double(unsigned char x) { signed char s = (signed char)x; return s / 64.0; } void edid_state::cta_rcdb(const unsigned char *x, unsigned length) { unsigned spm = ((x[3] << 16) | (x[2] << 8) | x[1]); unsigned i; if (length < 4) { fail("Empty Data Block with length %u.\n", length); return; } if ((x[0] & 0x20) && !cta.has_sldb) fail("'SLD' flag is 1, but no Speaker Location Data Block is found.\n"); else if (!(x[0] & 0x20) && cta.has_sldb) fail("'SLD' flag is 0, but a Speaker Location Data Block is present.\n"); if (x[0] & 0x40) { printf(" Speaker count: %u\n", (x[0] & 0x1f) + 1); } else { if (x[0] & 0x1f) fail("'Speaker' flag is 0, but 'Speaker Count' is != 0.\n"); if (x[0] & 0x20) fail("'SLD' flag is 1, but 'Speaker' is 0.\n"); } printf(" Speaker Presence Mask:\n"); for (i = 0; i < ARRAY_SIZE(speaker_map); i++) { if ((spm >> i) & 1) printf(" %s\n", speaker_map[i]); } if ((x[0] & 0xa0) == 0x80) fail("'Display' flag set, but not the 'SLD' flag.\n"); bool valid_max = cta.preparsed_sld_has_coord || (x[0] & 0x80); if (valid_max && length >= 7) { printf(" Xmax: %u dm\n", x[4]); printf(" Ymax: %u dm\n", x[5]); printf(" Zmax: %u dm\n", x[6]); } else if (!valid_max && length >= 7) { // The RCDB should have been truncated. warn("'Display' flag is 0 and 'Coord' is 0 for all SLDs, but the Max coordinates are still present.\n"); } if ((x[0] & 0x80) && length >= 10) { printf(" DisplayX: %.3f * Xmax\n", decode_uchar_as_double(x[7])); printf(" DisplayY: %.3f * Ymax\n", decode_uchar_as_double(x[8])); printf(" DisplayZ: %.3f * Zmax\n", decode_uchar_as_double(x[9])); } else if (!(x[0] & 0x80) && length >= 10) { // The RCDB should have been truncated. warn("'Display' flag is 0, but the Display coordinates are still present.\n"); } } static const char *speaker_location[] = { "FL - Front Left", "FR - Front Right", "FC - Front Center", "LFE1 - Low Frequency Effects 1", "BL - Back Left", "BR - Back Right", "FLC - Front Left of Center", "FRC - Front Right of Center", "BC - Back Center", "LFE2 - Low Frequency Effects 2", "SiL - Side Left", "SiR - Side Right", "TpFL - Top Front Left", "TpFR - Top Front Right", "TpFC - Top Front Center", "TpC - Top Center", "TpBL - Top Back Left", "TpBR - Top Back Right", "TpSiL - Top Side Left", "TpSiR - Top Side Right", "TpBC - Top Back Center", "BtFC - Bottom Front Center", "BtFL - Bottom Front Left", "BtFR - Bottom Front Right", "FLW - Front Left Wide", "FRW - Front Right Wide", "LS - Left Surround", "RS - Right Surround", }; void edid_state::cta_sldb(const unsigned char *x, unsigned length) { if (length < 2) { fail("Empty Data Block with length %u.\n", length); return; } unsigned active_cnt = 0; unsigned channel_is_active = 0; while (length >= 2) { printf(" Channel: %u (%sactive)\n", x[0] & 0x1f, (x[0] & 0x20) ? "" : "not "); if (x[0] & 0x20) { if (channel_is_active & (1U << (x[0] & 0x1f))) fail("Channel Index %u was already marked 'Active'.\n", x[0] & 0x1f); channel_is_active |= 1U << (x[0] & 0x1f); active_cnt++; } if ((x[1] & 0x1f) < ARRAY_SIZE(speaker_location)) printf(" Speaker: %s\n", speaker_location[x[1] & 0x1f]); if (length >= 5 && (x[0] & 0x40)) { printf(" X: %.3f * Xmax\n", decode_uchar_as_double(x[2])); printf(" Y: %.3f * Ymax\n", decode_uchar_as_double(x[3])); printf(" Z: %.3f * Zmax\n", decode_uchar_as_double(x[4])); length -= 3; x += 3; } length -= 2; x += 2; } if (active_cnt != cta.preparsed_speaker_count) fail("There are %u active speakers, but 'Speaker Count' is %u.\n", active_cnt, cta.preparsed_speaker_count); } void edid_state::cta_preparse_sldb(const unsigned char *x, unsigned length) { cta.has_sldb = true; while (length >= 2) { if (length >= 5 && (x[0] & 0x40)) { cta.preparsed_sld_has_coord = true; return; } length -= 2; x += 2; } } void edid_state::cta_vcdb(const unsigned char *x, unsigned length) { unsigned char d = x[0]; cta.has_vcdb = true; if (length < 1) { fail("Empty Data Block with length %u.\n", length); return; } printf(" YCbCr quantization: %s\n", (d & 0x80) ? "Selectable (via AVI YQ)" : "No Data"); printf(" RGB quantization: %s\n", (d & 0x40) ? "Selectable (via AVI Q)" : "No Data"); /* * If this bit is not set then that will result in interoperability * problems (specifically with PCs/laptops) that quite often do not * follow the default rules with respect to RGB Quantization Range * handling. * * Starting with the CTA-861-H spec this bit is now required to be * 1 for new designs. */ if (!(d & 0x40)) fail("Set Selectable RGB Quantization to avoid interop issues.\n"); /* * Since most YCbCr formats use limited range, the interop issues are * less noticable than for RGB formats. * * Starting with the CTA-861-H spec this bit is now required to be * 1 for new designs, but just warn about it (for now). */ if ((cta.byte3 & 0x30) && !(d & 0x80)) warn("Set Selectable YCbCr Quantization to avoid interop issues.\n"); unsigned char s_pt = (d >> 4) & 0x03; unsigned char s_it = (d >> 2) & 0x03; unsigned char s_ce = d & 0x03; printf(" PT scan behavior: "); switch (s_pt) { case 0: printf("No Data\n"); break; case 1: printf("Always Overscanned\n"); break; case 2: printf("Always Underscanned\n"); break; case 3: printf("Supports both over- and underscan\n"); break; } printf(" IT scan behavior: "); switch (s_it) { case 0: printf("IT video formats not supported\n"); break; case 1: printf("Always Overscanned\n"); // See Table 52 of CTA-861-G for a description of Byte 3 if (cta.byte3 & 0x80) fail("IT video formats are always overscanned, but bit 7 of Byte 3 of the CTA-861 Extension header is set to underscanned.\n"); break; case 2: printf("Always Underscanned\n"); // See Table 52 of CTA-861-G for a description of Byte 3 if (!(cta.byte3 & 0x80)) fail("IT video formats are always underscanned, but bit 7 of Byte 3 of the CTA-861 Extension header is set to overscanned.\n"); break; case 3: printf("Supports both over- and underscan\n"); break; } if (s_it < 2) warn("IT scan behavior is expected to support underscanned.\n"); printf(" CE scan behavior: "); switch (s_ce) { case 0: printf("CE video formats not supported\n"); break; case 1: printf("Always Overscanned\n"); break; case 2: printf("Always Underscanned\n"); break; case 3: printf("Supports both over- and underscan\n"); break; } if (s_ce == 0) warn("'CE video formats not supported' makes no sense.\n"); else if (s_pt == s_it && s_pt == s_ce) warn("S_PT is equal to S_IT and S_CE, so should be set to 0 instead.\n"); } static const char *colorimetry_map[] = { "xvYCC601", "xvYCC709", "sYCC601", "opYCC601", "opRGB", "BT2020cYCC", "BT2020YCC", "BT2020RGB", }; static void cta_colorimetry_block(const unsigned char *x, unsigned length) { unsigned i; if (length < 2) { fail("Empty Data Block with length %u.\n", length); return; } for (i = 0; i < ARRAY_SIZE(colorimetry_map); i++) { if (x[0] & (1 << i)) printf(" %s\n", colorimetry_map[i]); } if (x[1] & 0x80) printf(" DCI-P3\n"); if (x[1] & 0x40) printf(" ICtCp\n"); } static const char *eotf_map[] = { "Traditional gamma - SDR luminance range", "Traditional gamma - HDR luminance range", "SMPTE ST2084", "Hybrid Log-Gamma", }; static void cta_hdr_static_metadata_block(const unsigned char *x, unsigned length) { unsigned i; if (length < 2) { fail("Empty Data Block with length %u.\n", length); return; } printf(" Electro optical transfer functions:\n"); for (i = 0; i < 6; i++) { if (x[0] & (1 << i)) { if (i < ARRAY_SIZE(eotf_map)) { printf(" %s\n", eotf_map[i]); } else { printf(" Unknown (%u)\n", i); fail("Unknown EOTF (%u).\n", i); } } } printf(" Supported static metadata descriptors:\n"); for (i = 0; i < 8; i++) { if (x[1] & (1 << i)) printf(" Static metadata type %u\n", i + 1); } if (length >= 3) printf(" Desired content max luminance: %u (%.3f cd/m^2)\n", x[2], 50.0 * pow(2, x[2] / 32.0)); if (length >= 4) printf(" Desired content max frame-average luminance: %u (%.3f cd/m^2)\n", x[3], 50.0 * pow(2, x[3] / 32.0)); if (length >= 5) printf(" Desired content min luminance: %u (%.3f cd/m^2)\n", x[4], (50.0 * pow(2, x[2] / 32.0)) * pow(x[4] / 255.0, 2) / 100.0); } static void cta_hdr_dyn_metadata_block(const unsigned char *x, unsigned length) { if (length < 3) { fail("Empty Data Block with length %u.\n", length); return; } while (length >= 3) { unsigned type_len = x[0]; unsigned type = x[1] | (x[2] << 8); if (length < type_len + 1) return; printf(" HDR Dynamic Metadata Type %u\n", type); switch (type) { case 1: case 4: if (type_len > 2) printf(" Version: %u\n", x[3] & 0xf); break; case 2: if (type_len > 2) { unsigned version = x[3] & 0xf; printf(" Version: %u\n", version); if (version >= 1) { if (x[3] & 0x10) printf(" Supports SL-HDR1 (ETSI TS 103 433-1)\n"); if (x[3] & 0x20) printf(" Supports SL-HDR2 (ETSI TS 103 433-2)\n"); if (x[3] & 0x40) printf(" Supports SL-HDR3 (ETSI TS 103 433-3)\n"); } } break; default: break; } length -= type_len + 1; x += type_len + 1; } } static void cta_ifdb(const unsigned char *x, unsigned length) { unsigned len_hdr = x[0] >> 5; if (length < 2) { fail("Empty Data Block with length %u.\n", length); return; } printf(" VSIFs: %u\n", x[1]); if (length < len_hdr + 2) return; length -= len_hdr + 2; x += len_hdr + 2; while (length > 0) { int payload_len = x[0] >> 5; if ((x[0] & 0x1f) == 1 && length >= 4) { unsigned oui = (x[3] << 16) | (x[2] << 8) | x[1]; printf(" InfoFrame Type Code %u, OUI %s\n", x[0] & 0x1f, ouitohex(oui).c_str()); x += 4; length -= 4; } else { printf(" InfoFrame Type Code %u\n", x[0] & 0x1f); x++; length--; } x += payload_len; length -= payload_len; } } void edid_state::cta_displayid_type_7(const unsigned char *x, unsigned length) { check_displayid_datablock_revision(x[0], 0x00, 2); if (length < 21U + ((x[0] & 0x70) >> 4)) { fail("Empty Data Block with length %u.\n", length); return; } parse_displayid_type_1_7_timing(x + 1, true, 2, true); } void edid_state::cta_displayid_type_8(const unsigned char *x, unsigned length) { check_displayid_datablock_revision(x[0], 0xe8, 1); if (length < ((x[0] & 0x08) ? 3 : 2)) { fail("Empty Data Block with length %u.\n", length); return; } unsigned sz = (x[0] & 0x08) ? 2 : 1; unsigned type = x[0] >> 6; if (type) { fail("Only code type 0 is supported.\n"); return; } if (x[0] & 0x20) printf(" Also supports YCbCr 4:2:0\n"); x++; length--; for (unsigned i = 0; i < length / sz; i++) { unsigned id = x[i * sz]; if (sz == 2) id |= x[i * sz + 1] << 8; parse_displayid_type_4_8_timing(type, id, true); } } void edid_state::cta_displayid_type_10(const unsigned char *x, unsigned length) { check_displayid_datablock_revision(x[0], 0x70); if (length < 7U + ((x[0] & 0x70) >> 4)) { fail("Empty Data Block with length %u.\n", length); return; } unsigned sz = 6U + ((x[0] & 0x70) >> 4); x++; length--; for (unsigned i = 0; i < length / sz; i++) parse_displayid_type_10_timing(x + i * sz, true); } static void cta_hdmi_audio_block(const unsigned char *x, unsigned length) { unsigned num_descs; if (length < 2) { fail("Empty Data Block with length %u.\n", length); return; } if (x[0] & 3) printf(" Max Stream Count: %u\n", (x[0] & 3) + 1); if (x[0] & 4) printf(" Supports MS NonMixed\n"); num_descs = x[1] & 7; if (num_descs == 0) return; length -= 2; x += 2; while (length >= 4) { if (length > 4) { unsigned format = x[0] & 0xf; printf(" %s, max channels %u\n", audio_format(format).c_str(), (x[1] & 0x1f)+1); printf(" Supported sample rates (kHz):%s%s%s%s%s%s%s\n", (x[2] & 0x40) ? " 192" : "", (x[2] & 0x20) ? " 176.4" : "", (x[2] & 0x10) ? " 96" : "", (x[2] & 0x08) ? " 88.2" : "", (x[2] & 0x04) ? " 48" : "", (x[2] & 0x02) ? " 44.1" : "", (x[2] & 0x01) ? " 32" : ""); if (format == 1) printf(" Supported sample sizes (bits):%s%s%s\n", (x[3] & 0x04) ? " 24" : "", (x[3] & 0x02) ? " 20" : "", (x[3] & 0x01) ? " 16" : ""); } else { unsigned sad = ((x[2] << 16) | (x[1] << 8) | x[0]); unsigned i; switch (x[3] >> 4) { case 1: printf(" Speaker Allocation for 10.2 channels:\n"); break; case 2: printf(" Speaker Allocation for 22.2 channels:\n"); break; case 3: printf(" Speaker Allocation for 30.2 channels:\n"); break; default: printf(" Unknown Speaker Allocation (0x%02x)\n", x[3] >> 4); return; } for (i = 0; i < ARRAY_SIZE(speaker_map); i++) { if ((sad >> i) & 1) printf(" %s\n", speaker_map[i]); } } length -= 4; x += 4; } } void edid_state::cta_ext_block(const unsigned char *x, unsigned length, bool duplicate) { const char *name; unsigned oui; bool reverse = false; bool audio_block = false; switch (x[0]) { case 0x00: data_block = "Video Capability Data Block"; break; case 0x01: data_block.clear(); break; case 0x02: data_block = "VESA Video Display Device Data Block"; break; case 0x03: data_block = "VESA Video Timing Block Extension"; break; case 0x04: data_block = "Reserved for HDMI Video Data Block"; break; case 0x05: data_block = "Colorimetry Data Block"; break; case 0x06: data_block = "HDR Static Metadata Data Block"; break; case 0x07: data_block = "HDR Dynamic Metadata Data Block"; break; case 0x0d: data_block = "Video Format Preference Data Block"; break; case 0x0e: data_block = "YCbCr 4:2:0 Video Data Block"; break; case 0x0f: data_block = "YCbCr 4:2:0 Capability Map Data Block"; break; case 0x10: data_block = "Reserved for CTA-861 Miscellaneous Audio Fields"; break; case 0x11: data_block.clear(); audio_block = true; break; case 0x12: data_block = "HDMI Audio Data Block"; audio_block = true; break; case 0x13: data_block = "Room Configuration Data Block"; audio_block = true; break; case 0x14: data_block = "Speaker Location Data Block"; audio_block = true; break; case 0x20: data_block = "InfoFrame Data Block"; break; case 0x34: data_block = "DisplayID Type VII Video Timing Data Block"; break; case 0x35: data_block = "DisplayID Type VIII Video Timing Data Block"; break; case 0x42: data_block = "DisplayID Type X Video Timing Data Block"; break; case 0x78: data_block = "HDMI Forum EDID Extension Override Data Block"; break; case 0x79: data_block = "HDMI Forum Sink Capability Data Block"; break; default: if (x[0] <= 12) printf(" Unknown CTA-861 Video-Related"); else if (x[0] <= 31) printf(" Unknown CTA-861 Audio-Related"); else if (x[0] >= 120 && x[0] <= 127) printf(" Unknown CTA-861 HDMI-Related"); else printf(" Unknown CTA-861"); printf(" Data Block (extended tag 0x%02x, length %u)\n", x[0], length); hex_block(" ", x + 1, length); data_block.clear(); warn("Unknown Extended CTA-861 Data Block 0x%02x.\n", x[0]); return; } switch (x[0]) { case 0x00: case 0x02: case 0x05: case 0x06: case 0x0d: case 0x0f: case 0x12: case 0x13: case 0x78: case 0x79: if (duplicate) fail("Only one instance of this Data Block is allowed.\n"); break; } // See Table 52 of CTA-861-G for a description of Byte 3 if (audio_block && !(cta.byte3 & 0x40)) fail("audio information is present, but bit 6 of Byte 3 of the CTA-861 Extension header indicates no Basic Audio support.\n"); if (data_block.length()) printf(" %s:\n", data_block.c_str()); switch (x[0]) { case 0x00: cta_vcdb(x + 1, length); return; case 0x01: if (length < 3) { data_block = std::string("Vendor-Specific Video Data Block"); fail("Invalid length %u < 3.\n", length); return; } oui = (x[3] << 16) + (x[2] << 8) + x[1]; name = oui_name(oui); if (!name) { name = oui_name(oui, true); if (name) reverse = true; } if (!name) { printf(" Vendor-Specific Video Data Block, OUI %s:\n", ouitohex(oui).c_str()); hex_block(" ", x + 4, length - 3); data_block.clear(); warn("Unknown Extended Vendor-Specific Video Data Block, OUI %s.\n", ouitohex(oui).c_str()); return; } data_block = std::string("Vendor-Specific Video Data Block (") + name + ")"; if (reverse) fail((std::string("OUI ") + ouitohex(oui) + " is in the wrong byte order\n").c_str()); printf(" %s, OUI %s:\n", data_block.c_str(), ouitohex(oui).c_str()); if (oui == 0x90848b) cta_hdr10plus(x + 4, length - 3); else if (oui == 0x00d046) cta_dolby_video(x + 4, length - 3); else hex_block(" ", x + 4, length - 3); return; case 0x02: cta_vesa_vdddb(x + 1, length); return; case 0x05: cta_colorimetry_block(x + 1, length); return; case 0x06: cta_hdr_static_metadata_block(x + 1, length); return; case 0x07: cta_hdr_dyn_metadata_block(x + 1, length); return; case 0x0d: cta_vfpdb(x + 1, length); return; case 0x0e: cta_svd(x + 1, length, true); return; case 0x0f: cta_y420cmdb(x + 1, length); return; case 0x11: if (length < 3) { data_block = std::string("Vendor-Specific Audio Data Block"); fail("Invalid length %u < 3.\n", length); return; } oui = (x[3] << 16) + (x[2] << 8) + x[1]; name = oui_name(oui); if (!name) { name = oui_name(oui, true); if (name) reverse = true; } if (!name) { printf(" Vendor-Specific Audio Data Block, OUI %s:\n", ouitohex(oui).c_str()); hex_block(" ", x + 4, length - 3); data_block.clear(); warn("Unknown Extended Vendor-Specific Audio Data Block, OUI %s.\n", ouitohex(oui).c_str()); return; } data_block = std::string("Vendor-Specific Audio Data Block (") + name + ")"; if (reverse) fail((std::string("OUI ") + ouitohex(oui) + " is in the wrong byte order\n").c_str()); printf(" %s, OUI %s:\n", data_block.c_str(), ouitohex(oui).c_str()); if (oui == 0x00d046) cta_dolby_audio(x + 4, length - 3); else hex_block(" ", x + 4, length - 3); return; case 0x12: cta_hdmi_audio_block(x + 1, length); return; case 0x13: cta_rcdb(x + 1, length); return; case 0x14: cta_sldb(x + 1, length); return; case 0x20: cta_ifdb(x + 1, length); return; case 0x34: cta_displayid_type_7(x + 1, length); return; case 0x35: cta_displayid_type_8(x + 1, length); return; case 0x42: cta_displayid_type_10(x + 1, length); return; case 0x78: cta_hf_eeodb(x + 1, length); // This must be the first CTA-861 block if (!cta.first_block) fail("Block starts at a wrong offset.\n"); return; case 0x79: if (!cta.last_block_was_hdmi_vsdb) fail("HDMI Forum SCDB did not immediately follow the HDMI VSDB.\n"); if (cta.have_hf_scdb || cta.have_hf_vsdb) fail("Duplicate HDMI Forum VSDB/SCDB.\n"); if (length < 2) { data_block = std::string("HDMI Forum SCDB"); fail("Invalid length %u < 2.\n", length); return; } if (x[1] || x[2]) printf(" Non-zero SCDB reserved fields!\n"); cta_hf_scdb(x + 3, length - 2); cta.have_hf_scdb = 1; return; } hex_block(" ", x + 1, length); } void edid_state::cta_block(const unsigned char *x, bool duplicate) { unsigned length = x[0] & 0x1f; const char *name; unsigned oui; bool reverse = false; bool audio_block = false; switch ((x[0] & 0xe0) >> 5) { case 0x01: data_block = "Audio Data Block"; printf(" %s:\n", data_block.c_str()); cta_audio_block(x + 1, length); audio_block = true; break; case 0x02: data_block = "Video Data Block"; printf(" %s:\n", data_block.c_str()); cta_svd(x + 1, length, false); break; case 0x03: oui = (x[3] << 16) + (x[2] << 8) + x[1]; name = oui_name(oui); if (!name) { name = oui_name(oui, true); if (name) reverse = true; } if (!name) { printf(" Vendor-Specific Data Block, OUI %s:\n", ouitohex(oui).c_str()); hex_block(" ", x + 4, length - 3); data_block.clear(); warn("Unknown Vendor-Specific Data Block, OUI %s.\n", ouitohex(oui).c_str()); return; } data_block = std::string("Vendor-Specific Data Block (") + name + ")"; if (reverse) fail((std::string("OUI ") + ouitohex(oui) + " is in the wrong byte order\n").c_str()); printf(" %s, OUI %s:\n", data_block.c_str(), ouitohex(oui).c_str()); if (oui == 0x000c03) { cta_hdmi_block(x + 1, length); cta.last_block_was_hdmi_vsdb = 1; cta.first_block = 0; // The HDMI OUI is present, so this EDID represents an HDMI // interface. And HDMI interfaces must use EDID version 1.3 // according to the HDMI Specification, so check for this. if (base.edid_minor != 3) fail("The HDMI Specification requires EDID 1.3 instead of 1.%u.\n", base.edid_minor); return; } if (oui == 0xc45dd8) { if (!cta.last_block_was_hdmi_vsdb) fail("HDMI Forum VSDB did not immediately follow the HDMI VSDB.\n"); if (cta.have_hf_scdb || cta.have_hf_vsdb) fail("Duplicate HDMI Forum VSDB/SCDB.\n"); cta_hf_scdb(x + 4, length - 3); cta.have_hf_vsdb = 1; break; } if (oui == 0x00001a) { cta_amd(x + 4, length - 3); break; } if (oui == 0xca125c && length == 0x15) { cta_microsoft(x + 4, length - 3); break; } hex_block(" ", x + 4, length - 3); break; case 0x04: data_block = "Speaker Allocation Data Block"; printf(" %s:\n", data_block.c_str()); cta_sadb(x + 1, length); audio_block = true; if (duplicate) fail("Only one instance of this Data Block is allowed.\n"); break; case 0x05: data_block = "VESA Display Transfer Characteristics Data Block"; printf(" %s:\n", data_block.c_str()); cta_vesa_dtcdb(x + 1, length); if (duplicate) fail("Only one instance of this Data Block is allowed.\n"); break; case 0x07: cta_ext_block(x + 1, length - 1, duplicate); break; default: { unsigned tag = (*x & 0xe0) >> 5; unsigned length = *x & 0x1f; printf(" Unknown CTA-861 tag 0x%02x, length %u\n", tag, length); hex_block(" ", x + 1, length); data_block.clear(); warn("Unknown CTA-861 Data Block %u.\n", tag); break; } } // See Table 52 of CTA-861-G for a description of Byte 3 if (audio_block && !(cta.byte3 & 0x40)) fail("audio information is present, but bit 6 of Byte 3 of the CTA-861 Extension header indicates no Basic Audio support.\n"); cta.first_block = 0; cta.last_block_was_hdmi_vsdb = 0; } void edid_state::preparse_cta_block(const unsigned char *x) { unsigned version = x[1]; unsigned offset = x[2]; if (offset >= 4) { const unsigned char *detailed; for (detailed = x + offset; detailed + 17 < x + 127; detailed += 18) { if (memchk(detailed, 18)) break; if (detailed[0] || detailed[1]) cta.preparsed_total_dtds++; } } if (version < 3) return; for (unsigned i = 4; i < offset; i += (x[i] & 0x1f) + 1) { bool for_ycbcr420 = false; unsigned oui; switch ((x[i] & 0xe0) >> 5) { case 0x03: oui = (x[i + 3] << 16) + (x[i + 2] << 8) + x[i + 1]; if (oui == 0x000c03) { cta.has_hdmi = true; cta.preparsed_phys_addr = (x[i + 4] << 8) | x[i + 5]; } break; case 0x07: if (x[i + 1] == 0x0d) cta.has_vfpdb = true; if (x[i + 1] == 0x13 && (x[i + 2] & 0x40)) { cta.preparsed_speaker_count = 1 + (x[i + 2] & 0x1f); cta.preparsed_sld = x[i + 2] & 0x20; } if (x[i + 1] == 0x14) cta_preparse_sldb(x + i + 2, (x[i] & 0x1f) - 1); if (x[i + 1] == 0x22) cta.preparsed_total_vtdbs++; if (x[i + 1] == 0x23) cta.preparsed_has_t8vtdb = true; if (x[i + 1] == 0x32) cta.preparsed_total_vtdbs += ((x[i] & 0x1f) - 2) / (6 + ((x[i + 2] & 0x70) >> 4)); if (x[i + 1] != 0x0e) continue; for_ycbcr420 = true; /* fall-through */ case 0x02: for (unsigned j = 1 + for_ycbcr420; j <= (x[i] & 0x1f); j++) { unsigned char vic = x[i + j]; if ((vic & 0x7f) <= 64) vic &= 0x7f; cta.preparsed_svds[for_ycbcr420].push_back(vic); cta.preparsed_has_vic[for_ycbcr420][vic] = true; } break; } } } void edid_state::parse_cta_block(const unsigned char *x) { unsigned version = x[1]; unsigned offset = x[2]; const unsigned char *detailed; // See Table 52 of CTA-861-G for a description of Byte 3 printf(" Revision: %u\n", version); if (version == 0) fail("Invalid CTA-861 Extension revision 0.\n"); if (version == 2) fail("Deprecated CTA-861 Extension revision 2.\n"); if (cta.has_hdmi && version != 3) fail("The HDMI Specification requires CTA Extension revision 3.\n"); if (version > 3) warn("Unknown CTA-861 Extension revision %u.\n", version); if (version >= 1) do { if (version == 1 && x[3] != 0) fail("Non-zero byte 3.\n"); if (offset < 4) break; if (version < 3 && ((offset - 4) / 8)) { printf(" 8-byte timing descriptors: %u\n", (offset - 4) / 8); fail("8-byte descriptors were never used.\n"); } if (version >= 2) { if (x[3] & 0x80) printf(" Underscans IT Video Formats by default\n"); else warn("IT Video Formats are overscanned by default, but normally this should be underscanned.\n"); if (x[3] & 0x40) printf(" Basic audio support\n"); if (x[3] & 0x20) printf(" Supports YCbCr 4:4:4\n"); if (x[3] & 0x10) printf(" Supports YCbCr 4:2:2\n"); // Disable this test: this fails a lot of EDIDs, and there are // also some corner cases where you only want to receive 4:4:4 // and refuse a fallback to 4:2:2. // if ((x[3] & 0x30) && (x[3] & 0x30) != 0x30) // msg(!cta.has_hdmi, "If YCbCr support is indicated, then both 4:2:2 and 4:4:4 %s be supported.\n", // cta.has_hdmi ? "shall" : "should"); printf(" Native detailed modes: %u\n", x[3] & 0x0f); if (cta.first_block) cta.byte3 = x[3]; else if (x[3] != cta.byte3) fail("Byte 3 must be the same for all CTA-861 Extension Blocks.\n"); if (cta.first_block) { unsigned native_dtds = x[3] & 0x0f; cta.native_timings.clear(); if (!native_dtds && !cta.has_vfpdb) { cta.first_svd_might_be_preferred = true; } else if (native_dtds > cta.preparsed_total_dtds) { fail("There are more Native DTDs (%u) than DTDs (%u).\n", native_dtds, cta.preparsed_total_dtds); } if (native_dtds > cta.preparsed_total_dtds) native_dtds = cta.preparsed_total_dtds; for (unsigned i = 0; i < native_dtds; i++) { char type[16]; sprintf(type, "DTD %3u", i + 1); cta.native_timings.push_back(timings_ext(i + 129, type)); } if (cta.has_hdmi && block_nr != (block_map.saw_block_1 ? 2 : 1)) fail("The HDMI Specification requires that the first Extension Block (that is not a Block Map) is an CTA-861 Extension Block.\n"); } } if (version >= 3) { unsigned i; for (i = 4; i < offset; i += (x[i] & 0x1f) + 1) { unsigned tag = (x[i] & 0xe0) << 3; if (tag == 0x700) tag |= x[i + 1]; bool duplicate = cta.found_tags.find(tag) != cta.found_tags.end(); cta_block(x + i, duplicate); if (!duplicate) cta.found_tags.insert(tag); } data_block.clear(); if (i != offset) fail("Offset is %u, but should be %u.\n", offset, i); } data_block = "Detailed Timing Descriptors"; base.seen_non_detailed_descriptor = false; bool first = true; for (detailed = x + offset; detailed + 17 < x + 127; detailed += 18) { if (memchk(detailed, 18)) break; if (first) { first = false; printf(" %s:\n", data_block.c_str()); } detailed_block(detailed); } if (!memchk(detailed, x + 127 - detailed)) { data_block = "Padding"; fail("CTA-861 padding contains non-zero bytes.\n"); } } while (0); data_block.clear(); if (base.has_serial_number && base.has_serial_string) warn("Display Product Serial Number is set, so the Serial Number in the Base EDID should be 0.\n"); if (!cta.has_vic_1 && !base.has_640x480p60_est_timing) fail("Required 640x480p60 timings are missing in the established timings" " and the SVD list (VIC 1).\n"); if ((cta.supported_hdmi_vic_vsb_codes & cta.supported_hdmi_vic_codes) != cta.supported_hdmi_vic_codes) fail("HDMI VIC Codes must have their CTA-861 VIC equivalents in the VSB.\n"); if (!cta.has_vcdb) fail("Missing VCDB, needed for Set Selectable RGB Quantization to avoid interop issues.\n"); } void edid_state::cta_resolve_svr(vec_timings_ext::iterator iter) { if (iter->svr() == 254) { iter->flags = cta.t8vtdb.flags; iter->t = cta.t8vtdb.t; } else if (iter->svr() <= 144) { iter->flags = cta.vec_dtds[iter->svr() - 129].flags; iter->t = cta.vec_dtds[iter->svr() - 129].t; } else { iter->flags = cta.vec_vtdbs[iter->svr() - 145].flags; iter->t = cta.vec_vtdbs[iter->svr() - 145].t; } } void edid_state::cta_resolve_svrs() { for (vec_timings_ext::iterator iter = cta.preferred_timings.begin(); iter != cta.preferred_timings.end(); ++iter) { if (iter->has_svr()) cta_resolve_svr(iter); } for (vec_timings_ext::iterator iter = cta.native_timings.begin(); iter != cta.native_timings.end(); ++iter) { if (iter->has_svr()) cta_resolve_svr(iter); } } void edid_state::check_cta_blocks() { unsigned max_pref_prog_hact = 0; unsigned max_pref_prog_vact = 0; unsigned max_pref_ilace_hact = 0; unsigned max_pref_ilace_vact = 0; data_block = "CTA-861"; for (vec_timings_ext::iterator iter = cta.preferred_timings.begin(); iter != cta.preferred_timings.end(); ++iter) { if (iter->t.interlaced && (iter->t.vact > max_pref_ilace_vact || (iter->t.vact == max_pref_ilace_vact && iter->t.hact >= max_pref_ilace_hact))) { max_pref_ilace_hact = iter->t.hact; max_pref_ilace_vact = iter->t.vact; } if (!iter->t.interlaced && (iter->t.vact > max_pref_prog_vact || (iter->t.vact == max_pref_prog_vact && iter->t.hact >= max_pref_prog_hact))) { max_pref_prog_hact = iter->t.hact; max_pref_prog_vact = iter->t.vact; } } unsigned native_prog = 0; unsigned native_prog_hact = 0; unsigned native_prog_vact = 0; bool native_prog_mixed_resolutions = false; unsigned native_ilace = 0; unsigned native_ilace_hact = 0; unsigned native_ilace_vact = 0; bool native_ilace_mixed_resolutions = false; for (vec_timings_ext::iterator iter = cta.native_timings.begin(); iter != cta.native_timings.end(); ++iter) { if (iter->t.interlaced) { native_ilace++; if (!native_ilace_hact) { native_ilace_hact = iter->t.hact; native_ilace_vact = iter->t.vact; } else if (native_ilace_hact != iter->t.hact || native_ilace_vact != iter->t.vact) { native_ilace_mixed_resolutions = true; } } else { native_prog++; if (!native_prog_hact) { native_prog_hact = iter->t.hact; native_prog_vact = iter->t.vact; } else if (native_prog_hact != iter->t.hact || native_prog_vact != iter->t.vact) { native_prog_mixed_resolutions = true; } } } if (native_prog_mixed_resolutions) fail("Native progressive timings are a mix of several resolutions.\n"); if (native_ilace_mixed_resolutions) fail("Native interlaced timings are a mix of several resolutions.\n"); if (native_ilace && !native_prog) fail("A native interlaced timing is present, but not a native progressive timing.\n"); if (!native_prog_mixed_resolutions && native_prog > 1) warn("Multiple native progressive timings are defined.\n"); if (!native_ilace_mixed_resolutions && native_ilace > 1) warn("Multiple native interlaced timings are defined.\n"); if (!native_prog_mixed_resolutions && native_prog_vact && (max_pref_prog_vact > native_prog_vact || (max_pref_prog_vact == native_prog_vact && max_pref_prog_hact > native_prog_hact))) warn("Native progressive resolution of %ux%u is smaller than the max preferred progressive resolution %ux%u.\n", native_prog_hact, native_prog_vact, max_pref_prog_hact, max_pref_prog_vact); if (!native_ilace_mixed_resolutions && native_ilace_vact && (max_pref_ilace_vact > native_ilace_vact || (max_pref_ilace_vact == native_ilace_vact && max_pref_ilace_hact > native_ilace_hact))) warn("Native interlaced resolution of %ux%u is smaller than the max preferred interlaced resolution %ux%u.\n", native_ilace_hact, native_ilace_vact, max_pref_ilace_hact, max_pref_ilace_vact); if (dispid.native_width && native_prog_hact && !native_prog_mixed_resolutions) { if (dispid.native_width != native_prog_hact || dispid.native_height != native_prog_vact) fail("Mismatch between CTA-861 and DisplayID native progressive resolution.\n"); } }