diff options
Diffstat (limited to '3rdparty/SDL2/src/video/x11/edid-parse.c')
-rw-r--r-- | 3rdparty/SDL2/src/video/x11/edid-parse.c | 754 |
1 files changed, 0 insertions, 754 deletions
diff --git a/3rdparty/SDL2/src/video/x11/edid-parse.c b/3rdparty/SDL2/src/video/x11/edid-parse.c deleted file mode 100644 index 57f225b8522..00000000000 --- a/3rdparty/SDL2/src/video/x11/edid-parse.c +++ /dev/null @@ -1,754 +0,0 @@ -/* - * Copyright 2007 Red Hat, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * on the rights to use, copy, modify, merge, publish, distribute, sub - * license, and/or sell copies of the Software, and to permit persons to whom - * the Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER - * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* Author: Soren Sandmann <sandmann@redhat.com> */ -#include "../../SDL_internal.h" -#include "SDL_stdinc.h" - -#include "edid.h" -#include <stdlib.h> -#include <string.h> -#include <math.h> -#include <stdio.h> - -#define TRUE 1 -#define FALSE 0 - -static int -get_bit (int in, int bit) -{ - return (in & (1 << bit)) >> bit; -} - -static int -get_bits (int in, int begin, int end) -{ - int mask = (1 << (end - begin + 1)) - 1; - - return (in >> begin) & mask; -} - -static int -decode_header (const uchar *edid) -{ - if (memcmp (edid, "\x00\xff\xff\xff\xff\xff\xff\x00", 8) == 0) - return TRUE; - return FALSE; -} - -static int -decode_vendor_and_product_identification (const uchar *edid, MonitorInfo *info) -{ - int is_model_year; - - /* Manufacturer Code */ - info->manufacturer_code[0] = get_bits (edid[0x08], 2, 6); - info->manufacturer_code[1] = get_bits (edid[0x08], 0, 1) << 3; - info->manufacturer_code[1] |= get_bits (edid[0x09], 5, 7); - info->manufacturer_code[2] = get_bits (edid[0x09], 0, 4); - info->manufacturer_code[3] = '\0'; - - info->manufacturer_code[0] += 'A' - 1; - info->manufacturer_code[1] += 'A' - 1; - info->manufacturer_code[2] += 'A' - 1; - - /* Product Code */ - info->product_code = edid[0x0b] << 8 | edid[0x0a]; - - /* Serial Number */ - info->serial_number = - edid[0x0c] | edid[0x0d] << 8 | edid[0x0e] << 16 | edid[0x0f] << 24; - - /* Week and Year */ - is_model_year = FALSE; - switch (edid[0x10]) - { - case 0x00: - info->production_week = -1; - break; - - case 0xff: - info->production_week = -1; - is_model_year = TRUE; - break; - - default: - info->production_week = edid[0x10]; - break; - } - - if (is_model_year) - { - info->production_year = -1; - info->model_year = 1990 + edid[0x11]; - } - else - { - info->production_year = 1990 + edid[0x11]; - info->model_year = -1; - } - - return TRUE; -} - -static int -decode_edid_version (const uchar *edid, MonitorInfo *info) -{ - info->major_version = edid[0x12]; - info->minor_version = edid[0x13]; - - return TRUE; -} - -static int -decode_display_parameters (const uchar *edid, MonitorInfo *info) -{ - /* Digital vs Analog */ - info->is_digital = get_bit (edid[0x14], 7); - - if (info->is_digital) - { - int bits; - - static const int bit_depth[8] = - { - -1, 6, 8, 10, 12, 14, 16, -1 - }; - - static const Interface interfaces[6] = - { - UNDEFINED, DVI, HDMI_A, HDMI_B, MDDI, DISPLAY_PORT - }; - - bits = get_bits (edid[0x14], 4, 6); - info->digital.bits_per_primary = bit_depth[bits]; - - bits = get_bits (edid[0x14], 0, 3); - - if (bits <= 5) - info->digital.interface = interfaces[bits]; - else - info->digital.interface = UNDEFINED; - } - else - { - int bits = get_bits (edid[0x14], 5, 6); - - static const double levels[][3] = - { - { 0.7, 0.3, 1.0 }, - { 0.714, 0.286, 1.0 }, - { 1.0, 0.4, 1.4 }, - { 0.7, 0.0, 0.7 }, - }; - - info->analog.video_signal_level = levels[bits][0]; - info->analog.sync_signal_level = levels[bits][1]; - info->analog.total_signal_level = levels[bits][2]; - - info->analog.blank_to_black = get_bit (edid[0x14], 4); - - info->analog.separate_hv_sync = get_bit (edid[0x14], 3); - info->analog.composite_sync_on_h = get_bit (edid[0x14], 2); - info->analog.composite_sync_on_green = get_bit (edid[0x14], 1); - - info->analog.serration_on_vsync = get_bit (edid[0x14], 0); - } - - /* Screen Size / Aspect Ratio */ - if (edid[0x15] == 0 && edid[0x16] == 0) - { - info->width_mm = -1; - info->height_mm = -1; - info->aspect_ratio = -1.0; - } - else if (edid[0x16] == 0) - { - info->width_mm = -1; - info->height_mm = -1; - info->aspect_ratio = 100.0 / (edid[0x15] + 99); - } - else if (edid[0x15] == 0) - { - info->width_mm = -1; - info->height_mm = -1; - info->aspect_ratio = 100.0 / (edid[0x16] + 99); - info->aspect_ratio = 1/info->aspect_ratio; /* portrait */ - } - else - { - info->width_mm = 10 * edid[0x15]; - info->height_mm = 10 * edid[0x16]; - } - - /* Gamma */ - if (edid[0x17] == 0xFF) - info->gamma = -1.0; - else - info->gamma = (edid[0x17] + 100.0) / 100.0; - - /* Features */ - info->standby = get_bit (edid[0x18], 7); - info->suspend = get_bit (edid[0x18], 6); - info->active_off = get_bit (edid[0x18], 5); - - if (info->is_digital) - { - info->digital.rgb444 = TRUE; - if (get_bit (edid[0x18], 3)) - info->digital.ycrcb444 = 1; - if (get_bit (edid[0x18], 4)) - info->digital.ycrcb422 = 1; - } - else - { - int bits = get_bits (edid[0x18], 3, 4); - ColorType color_type[4] = - { - MONOCHROME, RGB, OTHER_COLOR, UNDEFINED_COLOR - }; - - info->analog.color_type = color_type[bits]; - } - - info->srgb_is_standard = get_bit (edid[0x18], 2); - - /* In 1.3 this is called "has preferred timing" */ - info->preferred_timing_includes_native = get_bit (edid[0x18], 1); - - /* FIXME: In 1.3 this indicates whether the monitor accepts GTF */ - info->continuous_frequency = get_bit (edid[0x18], 0); - return TRUE; -} - -static double -decode_fraction (int high, int low) -{ - double result = 0.0; - int i; - - high = (high << 2) | low; - - for (i = 0; i < 10; ++i) - result += get_bit (high, i) * SDL_pow (2, i - 10); - - return result; -} - -static int -decode_color_characteristics (const uchar *edid, MonitorInfo *info) -{ - info->red_x = decode_fraction (edid[0x1b], get_bits (edid[0x19], 6, 7)); - info->red_y = decode_fraction (edid[0x1c], get_bits (edid[0x19], 5, 4)); - info->green_x = decode_fraction (edid[0x1d], get_bits (edid[0x19], 2, 3)); - info->green_y = decode_fraction (edid[0x1e], get_bits (edid[0x19], 0, 1)); - info->blue_x = decode_fraction (edid[0x1f], get_bits (edid[0x1a], 6, 7)); - info->blue_y = decode_fraction (edid[0x20], get_bits (edid[0x1a], 4, 5)); - info->white_x = decode_fraction (edid[0x21], get_bits (edid[0x1a], 2, 3)); - info->white_y = decode_fraction (edid[0x22], get_bits (edid[0x1a], 0, 1)); - - return TRUE; -} - -static int -decode_established_timings (const uchar *edid, MonitorInfo *info) -{ - static const Timing established[][8] = - { - { - { 800, 600, 60 }, - { 800, 600, 56 }, - { 640, 480, 75 }, - { 640, 480, 72 }, - { 640, 480, 67 }, - { 640, 480, 60 }, - { 720, 400, 88 }, - { 720, 400, 70 } - }, - { - { 1280, 1024, 75 }, - { 1024, 768, 75 }, - { 1024, 768, 70 }, - { 1024, 768, 60 }, - { 1024, 768, 87 }, - { 832, 624, 75 }, - { 800, 600, 75 }, - { 800, 600, 72 } - }, - { - { 0, 0, 0 }, - { 0, 0, 0 }, - { 0, 0, 0 }, - { 0, 0, 0 }, - { 0, 0, 0 }, - { 0, 0, 0 }, - { 0, 0, 0 }, - { 1152, 870, 75 } - }, - }; - - int i, j, idx; - - idx = 0; - for (i = 0; i < 3; ++i) - { - for (j = 0; j < 8; ++j) - { - int byte = edid[0x23 + i]; - - if (get_bit (byte, j) && established[i][j].frequency != 0) - info->established[idx++] = established[i][j]; - } - } - return TRUE; -} - -static int -decode_standard_timings (const uchar *edid, MonitorInfo *info) -{ - int i; - - for (i = 0; i < 8; i++) - { - int first = edid[0x26 + 2 * i]; - int second = edid[0x27 + 2 * i]; - - if (first != 0x01 && second != 0x01) - { - int w = 8 * (first + 31); - int h = 0; - - switch (get_bits (second, 6, 7)) - { - case 0x00: h = (w / 16) * 10; break; - case 0x01: h = (w / 4) * 3; break; - case 0x02: h = (w / 5) * 4; break; - case 0x03: h = (w / 16) * 9; break; - } - - info->standard[i].width = w; - info->standard[i].height = h; - info->standard[i].frequency = get_bits (second, 0, 5) + 60; - } - } - - return TRUE; -} - -static void -decode_lf_string (const uchar *s, int n_chars, char *result) -{ - int i; - for (i = 0; i < n_chars; ++i) - { - if (s[i] == 0x0a) - { - *result++ = '\0'; - break; - } - else if (s[i] == 0x00) - { - /* Convert embedded 0's to spaces */ - *result++ = ' '; - } - else - { - *result++ = s[i]; - } - } -} - -static void -decode_display_descriptor (const uchar *desc, - MonitorInfo *info) -{ - switch (desc[0x03]) - { - case 0xFC: - decode_lf_string (desc + 5, 13, info->dsc_product_name); - break; - case 0xFF: - decode_lf_string (desc + 5, 13, info->dsc_serial_number); - break; - case 0xFE: - decode_lf_string (desc + 5, 13, info->dsc_string); - break; - case 0xFD: - /* Range Limits */ - break; - case 0xFB: - /* Color Point */ - break; - case 0xFA: - /* Timing Identifications */ - break; - case 0xF9: - /* Color Management */ - break; - case 0xF8: - /* Timing Codes */ - break; - case 0xF7: - /* Established Timings */ - break; - case 0x10: - break; - } -} - -static void -decode_detailed_timing (const uchar *timing, - DetailedTiming *detailed) -{ - int bits; - StereoType stereo[] = - { - NO_STEREO, NO_STEREO, FIELD_RIGHT, FIELD_LEFT, - TWO_WAY_RIGHT_ON_EVEN, TWO_WAY_LEFT_ON_EVEN, - FOUR_WAY_INTERLEAVED, SIDE_BY_SIDE - }; - - detailed->pixel_clock = (timing[0x00] | timing[0x01] << 8) * 10000; - detailed->h_addr = timing[0x02] | ((timing[0x04] & 0xf0) << 4); - detailed->h_blank = timing[0x03] | ((timing[0x04] & 0x0f) << 8); - detailed->v_addr = timing[0x05] | ((timing[0x07] & 0xf0) << 4); - detailed->v_blank = timing[0x06] | ((timing[0x07] & 0x0f) << 8); - detailed->h_front_porch = timing[0x08] | get_bits (timing[0x0b], 6, 7) << 8; - detailed->h_sync = timing[0x09] | get_bits (timing[0x0b], 4, 5) << 8; - detailed->v_front_porch = - get_bits (timing[0x0a], 4, 7) | get_bits (timing[0x0b], 2, 3) << 4; - detailed->v_sync = - get_bits (timing[0x0a], 0, 3) | get_bits (timing[0x0b], 0, 1) << 4; - detailed->width_mm = timing[0x0c] | get_bits (timing[0x0e], 4, 7) << 8; - detailed->height_mm = timing[0x0d] | get_bits (timing[0x0e], 0, 3) << 8; - detailed->right_border = timing[0x0f]; - detailed->top_border = timing[0x10]; - - detailed->interlaced = get_bit (timing[0x11], 7); - - /* Stereo */ - bits = get_bits (timing[0x11], 5, 6) << 1 | get_bit (timing[0x11], 0); - detailed->stereo = stereo[bits]; - - /* Sync */ - bits = timing[0x11]; - - detailed->digital_sync = get_bit (bits, 4); - if (detailed->digital_sync) - { - detailed->digital.composite = !get_bit (bits, 3); - - if (detailed->digital.composite) - { - detailed->digital.serrations = get_bit (bits, 2); - detailed->digital.negative_vsync = FALSE; - } - else - { - detailed->digital.serrations = FALSE; - detailed->digital.negative_vsync = !get_bit (bits, 2); - } - - detailed->digital.negative_hsync = !get_bit (bits, 0); - } - else - { - detailed->analog.bipolar = get_bit (bits, 3); - detailed->analog.serrations = get_bit (bits, 2); - detailed->analog.sync_on_green = !get_bit (bits, 1); - } -} - -static int -decode_descriptors (const uchar *edid, MonitorInfo *info) -{ - int i; - int timing_idx; - - timing_idx = 0; - - for (i = 0; i < 4; ++i) - { - int index = 0x36 + i * 18; - - if (edid[index + 0] == 0x00 && edid[index + 1] == 0x00) - { - decode_display_descriptor (edid + index, info); - } - else - { - decode_detailed_timing ( - edid + index, &(info->detailed_timings[timing_idx++])); - } - } - - info->n_detailed_timings = timing_idx; - - return TRUE; -} - -static void -decode_check_sum (const uchar *edid, - MonitorInfo *info) -{ - int i; - uchar check = 0; - - for (i = 0; i < 128; ++i) - check += edid[i]; - - info->checksum = check; -} - -MonitorInfo * -decode_edid (const uchar *edid) -{ - MonitorInfo *info = calloc (1, sizeof (MonitorInfo)); - - decode_check_sum (edid, info); - - if (!decode_header (edid) || - !decode_vendor_and_product_identification (edid, info) || - !decode_edid_version (edid, info) || - !decode_display_parameters (edid, info) || - !decode_color_characteristics (edid, info) || - !decode_established_timings (edid, info) || - !decode_standard_timings (edid, info) || - !decode_descriptors (edid, info)) { - free(info); - return NULL; - } - - return info; -} - -static const char * -yesno (int v) -{ - return v? "yes" : "no"; -} - -void -dump_monitor_info (MonitorInfo *info) -{ - int i; - - printf ("Checksum: %d (%s)\n", - info->checksum, info->checksum? "incorrect" : "correct"); - printf ("Manufacturer Code: %s\n", info->manufacturer_code); - printf ("Product Code: 0x%x\n", info->product_code); - printf ("Serial Number: %u\n", info->serial_number); - - if (info->production_week != -1) - printf ("Production Week: %d\n", info->production_week); - else - printf ("Production Week: unspecified\n"); - - if (info->production_year != -1) - printf ("Production Year: %d\n", info->production_year); - else - printf ("Production Year: unspecified\n"); - - if (info->model_year != -1) - printf ("Model Year: %d\n", info->model_year); - else - printf ("Model Year: unspecified\n"); - - printf ("EDID revision: %d.%d\n", info->major_version, info->minor_version); - - printf ("Display is %s\n", info->is_digital? "digital" : "analog"); - if (info->is_digital) - { - const char *interface; - if (info->digital.bits_per_primary != -1) - printf ("Bits Per Primary: %d\n", info->digital.bits_per_primary); - else - printf ("Bits Per Primary: undefined\n"); - - switch (info->digital.interface) - { - case DVI: interface = "DVI"; break; - case HDMI_A: interface = "HDMI-a"; break; - case HDMI_B: interface = "HDMI-b"; break; - case MDDI: interface = "MDDI"; break; - case DISPLAY_PORT: interface = "DisplayPort"; break; - case UNDEFINED: interface = "undefined"; break; - default: interface = "unknown"; break; - } - printf ("Interface: %s\n", interface); - - printf ("RGB 4:4:4: %s\n", yesno (info->digital.rgb444)); - printf ("YCrCb 4:4:4: %s\n", yesno (info->digital.ycrcb444)); - printf ("YCrCb 4:2:2: %s\n", yesno (info->digital.ycrcb422)); - } - else - { - const char *s; - printf ("Video Signal Level: %f\n", info->analog.video_signal_level); - printf ("Sync Signal Level: %f\n", info->analog.sync_signal_level); - printf ("Total Signal Level: %f\n", info->analog.total_signal_level); - - printf ("Blank to Black: %s\n", - yesno (info->analog.blank_to_black)); - printf ("Separate HV Sync: %s\n", - yesno (info->analog.separate_hv_sync)); - printf ("Composite Sync on H: %s\n", - yesno (info->analog.composite_sync_on_h)); - printf ("Serration on VSync: %s\n", - yesno (info->analog.serration_on_vsync)); - - switch (info->analog.color_type) - { - case UNDEFINED_COLOR: s = "undefined"; break; - case MONOCHROME: s = "monochrome"; break; - case RGB: s = "rgb"; break; - case OTHER_COLOR: s = "other color"; break; - default: s = "unknown"; break; - }; - - printf ("Color: %s\n", s); - } - - if (info->width_mm == -1) - printf ("Width: undefined\n"); - else - printf ("Width: %d mm\n", info->width_mm); - - if (info->height_mm == -1) - printf ("Height: undefined\n"); - else - printf ("Height: %d mm\n", info->height_mm); - - if (info->aspect_ratio > 0) - printf ("Aspect Ratio: %f\n", info->aspect_ratio); - else - printf ("Aspect Ratio: undefined\n"); - - if (info->gamma >= 0) - printf ("Gamma: %f\n", info->gamma); - else - printf ("Gamma: undefined\n"); - - printf ("Standby: %s\n", yesno (info->standby)); - printf ("Suspend: %s\n", yesno (info->suspend)); - printf ("Active Off: %s\n", yesno (info->active_off)); - - printf ("SRGB is Standard: %s\n", yesno (info->srgb_is_standard)); - printf ("Preferred Timing Includes Native: %s\n", - yesno (info->preferred_timing_includes_native)); - printf ("Continuous Frequency: %s\n", yesno (info->continuous_frequency)); - - printf ("Red X: %f\n", info->red_x); - printf ("Red Y: %f\n", info->red_y); - printf ("Green X: %f\n", info->green_x); - printf ("Green Y: %f\n", info->green_y); - printf ("Blue X: %f\n", info->blue_x); - printf ("Blue Y: %f\n", info->blue_y); - printf ("White X: %f\n", info->white_x); - printf ("White Y: %f\n", info->white_y); - - printf ("Established Timings:\n"); - - for (i = 0; i < 24; ++i) - { - Timing *timing = &(info->established[i]); - - if (timing->frequency == 0) - break; - - printf (" %d x %d @ %d Hz\n", - timing->width, timing->height, timing->frequency); - - } - - printf ("Standard Timings:\n"); - for (i = 0; i < 8; ++i) - { - Timing *timing = &(info->standard[i]); - - if (timing->frequency == 0) - break; - - printf (" %d x %d @ %d Hz\n", - timing->width, timing->height, timing->frequency); - } - - for (i = 0; i < info->n_detailed_timings; ++i) - { - DetailedTiming *timing = &(info->detailed_timings[i]); - const char *s; - - printf ("Timing%s: \n", - (i == 0 && info->preferred_timing_includes_native)? - " (Preferred)" : ""); - printf (" Pixel Clock: %d\n", timing->pixel_clock); - printf (" H Addressable: %d\n", timing->h_addr); - printf (" H Blank: %d\n", timing->h_blank); - printf (" H Front Porch: %d\n", timing->h_front_porch); - printf (" H Sync: %d\n", timing->h_sync); - printf (" V Addressable: %d\n", timing->v_addr); - printf (" V Blank: %d\n", timing->v_blank); - printf (" V Front Porch: %d\n", timing->v_front_porch); - printf (" V Sync: %d\n", timing->v_sync); - printf (" Width: %d mm\n", timing->width_mm); - printf (" Height: %d mm\n", timing->height_mm); - printf (" Right Border: %d\n", timing->right_border); - printf (" Top Border: %d\n", timing->top_border); - switch (timing->stereo) - { - default: - case NO_STEREO: s = "No Stereo"; break; - case FIELD_RIGHT: s = "Field Sequential, Right on Sync"; break; - case FIELD_LEFT: s = "Field Sequential, Left on Sync"; break; - case TWO_WAY_RIGHT_ON_EVEN: s = "Two-way, Right on Even"; break; - case TWO_WAY_LEFT_ON_EVEN: s = "Two-way, Left on Even"; break; - case FOUR_WAY_INTERLEAVED: s = "Four-way Interleaved"; break; - case SIDE_BY_SIDE: s = "Side-by-Side"; break; - } - printf (" Stereo: %s\n", s); - - if (timing->digital_sync) - { - printf (" Digital Sync:\n"); - printf (" composite: %s\n", yesno (timing->digital.composite)); - printf (" serrations: %s\n", yesno (timing->digital.serrations)); - printf (" negative vsync: %s\n", - yesno (timing->digital.negative_vsync)); - printf (" negative hsync: %s\n", - yesno (timing->digital.negative_hsync)); - } - else - { - printf (" Analog Sync:\n"); - printf (" bipolar: %s\n", yesno (timing->analog.bipolar)); - printf (" serrations: %s\n", yesno (timing->analog.serrations)); - printf (" sync on green: %s\n", yesno ( - timing->analog.sync_on_green)); - } - } - - printf ("Detailed Product information:\n"); - printf (" Product Name: %s\n", info->dsc_product_name); - printf (" Serial Number: %s\n", info->dsc_serial_number); - printf (" Unspecified String: %s\n", info->dsc_string); -} - |