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-rwxr-xr-xmonitor-parse-edid726
1 files changed, 47 insertions, 679 deletions
diff --git a/monitor-parse-edid b/monitor-parse-edid
index 389658a..c2c9d7a 100755
--- a/monitor-parse-edid
+++ b/monitor-parse-edid
@@ -16,605 +16,67 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
-my @CVT_ratios = qw(5/4 4/3 3/2 16/10 15/9 16/9);
-my @known_ratios = @CVT_ratios;
-
-my @edid_info = group_by2(
- a8 => '_header',
- a2 => 'manufacturer_name',
-
- v => 'product_code',
- V => 'serial_number',
- C => 'week',
- C => 'year',
- C => 'edid_version',
- C => 'edid_revision',
- a => 'video_input_definition',
-
- C => 'max_size_horizontal', # in cm, 0 on projectors
- C => 'max_size_vertical', # in cm, 0 on projectors
- C => 'gamma',
- a => 'feature_support',
- a10 => '_color_characteristics',
- a3 => 'established_timings',
- a16 => 'standard_timings',
- a72 => 'monitor_details',
-
- C => 'extension_flag',
- C => 'checksum',
-);
-
-my %subfields = (
- manufacturer_name => [ group_by2(
- 1 => '',
- 5 => '1',
- 5 => '2',
- 5 => '3',
- ) ],
-
- video_input_definition => [ group_by2(
- 1 => 'digital',
- 1 => 'separate_sync',
- 1 => 'composite_sync',
- 1 => 'sync_on_green',
- 2 => '',
- 2 => 'voltage_level',
- ) ],
-
- feature_support => [ group_by2(
- 1 => 'DPMS_standby',
- 1 => 'DPMS_suspend',
- 1 => 'DPMS_active_off',
- 1 => 'rgb',
-
- 1 => '',
- 1 => 'sRGB_compliance',
- 1 => 'has_preferred_timing',
- 1 => 'GTF_compliance',
- ) ],
-
- established_timings => [ group_by2(
- 1 => '720x400_70',
- 1 => '720x400_88',
- 1 => '640x480_60',
- 1 => '640x480_67',
- 1 => '640x480_72',
- 1 => '640x480_75',
- 1 => '800x600_56',
- 1 => '800x600_60',
- 1 => '800x600_72',
- 1 => '800x600_75',
- 1 => '832x624_75',
- 1 => '1024x768_87i',
- 1 => '1024x768_60',
- 1 => '1024x768_70',
- 1 => '1024x768_75',
- 1 => '1280x1024_75',
- ) ],
-
- detailed_timing => [ group_by2(
- 8 => 'horizontal_active',
- 8 => 'horizontal_blanking',
- 4 => 'horizontal_active_hi',
- 4 => 'horizontal_blanking_hi',
- 8 => 'vertical_active',
- 8 => 'vertical_blanking',
- 4 => 'vertical_active_hi',
- 4 => 'vertical_blanking_hi',
- 8 => 'horizontal_sync_offset',
- 8 => 'horizontal_sync_pulse_width',
- 4 => 'vertical_sync_offset',
- 4 => 'vertical_sync_pulse_width',
- 2 => 'horizontal_sync_offset_hi',
- 2 => 'horizontal_sync_pulse_width_hi',
- 2 => 'vertical_sync_offset_hi',
- 2 => 'vertical_sync_pulse_width_hi',
- 8 => 'horizontal_image_size', # in mm
- 8 => 'vertical_image_size', # in mm
- 4 => 'horizontal_image_size_hi',
- 4 => 'vertical_image_size_hi',
- 8 => 'horizontal_border',
- 8 => 'vertical_border',
-
- 1 => 'interlaced',
- 2 => 'stereo',
- 2 => 'digital_composite',
- 1 => 'horizontal_sync_positive',
- 1 => 'vertical_sync_positive',
- 1 => '',
- ) ],
-
- standard_timing => [ group_by2(
- 8 => 'X',
- 2 => 'aspect',
- 6 => 'vfreq',
- ) ],
- monitor_range => [ group_by2(
- 8 => 'vertical_min',
- 8 => 'vertical_max',
- 8 => 'horizontal_min',
- 8 => 'horizontal_max',
- 8 => 'pixel_clock_max',
- ) ],
-
- manufacturer_specified_range_timing => [ group_by2(
- # http://www.spwg.org/salisbury_march_19_2002.pdf
- # for the glossary: http://www.vesa.org/Public/PSWG/PSWG15v1.pdf
- 8 => 'horizontal_sync_pulse_width_min', # HSPW (Horizontal Sync Pulse Width)
- 8 => 'horizontal_sync_pulse_width_max',
- 8 => 'horizontal_back_porch_min', # t_hbp
- 8 => 'horizontal_back_porch_max',
- 8 => 'vertical_sync_pulse_width_min', # VSPW (Vertical Sync Pulse Width)
- 8 => 'vertical_sync_pulse_width_max',
- 8 => 'vertical_back_porch_min', # t_vbp (Vertical Back Porch)
- 8 => 'vertical_back_porch_max',
- 8 => 'horizontal_blanking_min', # t_hp (Horizontal Period)
- 8 => 'horizontal_blanking_max',
- 8 => 'vertical_blanking_min', # t_vp
- 8 => 'vertical_blanking_max',
- 8 => 'module_revision',
- ) ],
-
- cea_data_block_collection => [ group_by2(
- 3 => 'type',
- 5 => 'size',
- ) ],
-
- cea_video_data_block => [ group_by2(
- 1 => 'native',
- 7 => 'mode',
- ) ],
-);
-
-my @cea_video_mode_to_detailed_timing = ('pixel_clock', 'horizontal_active', 'vertical_active', 'aspect',
- 'horizontal_blanking', 'horizontal_sync_offset', 'horizontal_sync_pulse_width',
- 'vertical_blanking', 'vertical_sync_offset', 'vertical_sync_pulse_width',
- 'horizontal_sync_positive', 'vertical_sync_positive', 'interlaced');
-
-my @cea_video_modes = (
-# [0] pixel clock, [1] X, [2] Y, [3] aspect, [4] Hblank, [5] Hsync_offset, [6] Hsync_pulse_width,
-# [7] Vblank, [8] Vsync_offset, [9] Vsync_pulse_width, [10] Hsync+, [11] Vsync+, [12] interlaced
-# 59.94/29.97 and similar modes also have a 60.00/30.00 counterpart by raising the pixel clock
- [ 25.175, 640, 480, "4/3", 160, 16, 96, 45, 10, 2, 0, 0, 0 ], # 1: 640x 480@59.94
- [ 27.000, 720, 480, "4/3", 138, 16, 62, 45, 9, 6, 0, 0, 0 ], # 2: 720x 480@59.94
- [ 27.000, 720, 480, "16/9", 138, 16, 62, 45, 9, 6, 0, 0, 0 ], # 3: 720x 480@59.94
- [ 74.250, 1280, 720, "16/9", 370, 110, 40, 30, 5, 5, 1, 1, 0 ], # 4: 1280x 720@60.00
- [ 74.250, 1920, 1080, "16/9", 280, 88, 44, 45, 4, 10, 1, 1, 1 ], # 5: 1920x1080@30.00
- [ 27.000, 1440, 480, "4/3", 276, 38, 124, 45, 8, 6, 0, 0, 1 ], # 6: 1440x 480@29.97
- [ 27.000, 1440, 480, "16/9", 276, 38, 124, 45, 8, 6, 0, 0, 1 ], # 7: 1440x 480@29.97
- [ 27.000, 1440, 240, "4/3", 276, 38, 124, 22, 4, 3, 0, 0, 0 ], # 8: 1440x 240@60.05
- [ 27.000, 1440, 240, "16/9", 276, 38, 124, 22, 4, 3, 0, 0, 0 ], # 9: 1440x 240@60.05
- [ 54.000, 2880, 480, "4/3", 552, 76, 248, 45, 8, 6, 0, 0, 1 ], # 10: 2880x 480@29.97
- [ 54.000, 2880, 480, "16/9", 552, 76, 248, 45, 8, 6, 0, 0, 1 ], # 11: 2880x 480@29.97
- [ 54.000, 2880, 240, "4/3", 552, 76, 248, 22, 4, 3, 0, 0, 0 ], # 12: 2880x 240@60.05
- [ 54.000, 2880, 240, "16/9", 552, 76, 248, 22, 4, 3, 0, 0, 0 ], # 13: 2880x 240@60.05
- [ 54.000, 1440, 480, "4/3", 276, 32, 124, 45, 9, 6, 0, 0, 0 ], # 14: 1440x 480@59.94
- [ 54.000, 1440, 480, "16/9", 276, 32, 124, 45, 9, 6, 0, 0, 0 ], # 15: 1440x 480@59.94
- [ 148.500, 1920, 1080, "16/9", 280, 88, 44, 45, 4, 5, 1, 1, 0 ], # 16: 1920x1080@60.00
- [ 27.000, 720, 576, "4/3", 144, 12, 64, 49, 5, 5, 0, 0, 0 ], # 17: 720x 576@50.00
- [ 27.000, 720, 576, "16/9", 144, 12, 64, 49, 5, 5, 0, 0, 0 ], # 18: 720x 576@50.00
- [ 74.250, 1280, 720, "16/9", 700, 440, 40, 30, 5, 5, 1, 1, 0 ], # 19: 1280x 720@50.00
- [ 74.250, 1920, 1080, "16/9", 720, 528, 44, 45, 4, 10, 1, 1, 1 ], # 20: 1920x1080@25.00
- [ 27.000, 1440, 576, "4/3", 288, 24, 126, 49, 4, 6, 0, 0, 1 ], # 21: 1440x 576@25.00
- [ 27.000, 1440, 576, "16/9", 288, 24, 126, 49, 4, 6, 0, 0, 1 ], # 22: 1440x 576@25.00
- [ 27.000, 1440, 288, "4/3", 288, 24, 126, 24, 2, 3, 0, 0, 0 ], # 23: 1440x 288@50.08
- [ 27.000, 1440, 288, "16/9", 288, 24, 126, 24, 2, 3, 0, 0, 0 ], # 24: 1440x 288@50.08
- [ 54.000, 2880, 576, "4/3", 576, 48, 252, 49, 4, 6, 0, 0, 1 ], # 25: 2880x 576@25.00
- [ 54.000, 2880, 576, "16/9", 576, 48, 252, 49, 4, 6, 0, 0, 1 ], # 26: 2880x 576@25.00
- [ 54.000, 2880, 288, "4/3", 576, 48, 252, 24, 2, 3, 0, 0, 0 ], # 27: 2880x 288@50.08
- [ 54.000, 2880, 288, "16/9", 576, 48, 252, 24, 2, 3, 0, 0, 0 ], # 28: 2880x 288@50.08
- [ 54.000, 1440, 576, "4/3", 288, 24, 128, 49, 5, 5, 0, 0, 0 ], # 29: 1440x 576@50.00
- [ 54.000, 1440, 576, "16/9", 288, 24, 128, 49, 5, 5, 0, 0, 0 ], # 30: 1440x 576@50.00
- [ 148.500, 1920, 1080, "16/9", 720, 528, 44, 45, 4, 5, 1, 1, 0 ], # 31: 1920x1080@50.00
- [ 74.250, 1920, 1080, "16/9", 830, 638, 44, 45, 4, 5, 1, 1, 0 ], # 32: 1920x1080@24.00
- [ 74.250, 1920, 1080, "16/9", 720, 528, 44, 45, 4, 5, 1, 1, 0 ], # 33: 1920x1080@25.00
- [ 74.250, 1920, 1080, "16/9", 280, 88, 44, 45, 4, 5, 1, 1, 0 ], # 34: 1920x1080@30.00
- [ 108.000, 2880, 480, "4/3", 552, 64, 248, 45, 9, 6, 0, 0, 0 ], # 35: 2880x 480@59.94
- [ 108.000, 2880, 480, "16/9", 552, 64, 248, 45, 9, 6, 0, 0, 0 ], # 36: 2880x 480@59.94
- [ 108.000, 2880, 576, "4/3", 576, 48, 256, 49, 5, 5, 0, 0, 0 ], # 37: 2880x 576@50.00
- [ 108.000, 2880, 576, "16/9", 576, 48, 256, 49, 5, 5, 0, 0, 0 ], # 38: 2880x 576@50.00
- [ 72.000, 1920, 1080, "16/9", 384, 32, 168, 170, 46, 10, 1, 0, 1 ], # 39: 1920x1080@25.00
- [ 148.500, 1920, 1080, "16/9", 720, 528, 44, 45, 4, 10, 1, 1, 1 ], # 40: 1920x1080@50.00
- [ 148.500, 1280, 720, "16/9", 700, 440, 40, 30, 5, 5, 1, 1, 0 ], # 41: 1280x 720@100.00
- [ 54.000, 720, 576, "4/3", 144, 12, 64, 49, 5, 5, 0, 0, 0 ], # 42: 720x 576@100.00
- [ 54.000, 720, 576, "16/9", 144, 12, 64, 49, 5, 5, 0, 0, 0 ], # 43: 720x 576@100.00
- [ 54.000, 1440, 576, "4/3", 288, 24, 126, 49, 4, 6, 0, 0, 0 ], # 44: 1440x 576@50.00
- [ 54.000, 1440, 576, "16/9", 288, 24, 126, 49, 4, 6, 0, 0, 0 ], # 45: 1440x 576@50.00
- [ 148.500, 1920, 1080, "16/9", 280, 88, 44, 45, 4, 10, 1, 1, 1 ], # 46: 1920x1080@60.00
- [ 148.500, 1280, 720, "16/9", 370, 110, 40, 30, 5, 5, 1, 1, 0 ], # 47: 1280x 720@120.00
- [ 54.000, 720, 480, "4/3", 138, 16, 62, 45, 9, 6, 0, 0, 0 ], # 48: 720x 480@119.88
- [ 54.000, 720, 480, "16/9", 138, 16, 62, 45, 9, 6, 0, 0, 0 ], # 49: 720x 480@119.88
- [ 54.000, 1440, 480, "4/3", 276, 38, 124, 45, 8, 6, 0, 0, 1 ], # 50: 1440x 480@59.94
- [ 54.000, 1440, 480, "16/9", 276, 38, 124, 45, 8, 6, 0, 0, 1 ], # 51: 1440x 480@59.94
- [ 108.000, 720, 576, "4/3", 144, 12, 64, 49, 5, 5, 0, 0, 0 ], # 52: 720x 576@200.00
- [ 108.000, 720, 576, "16/9", 144, 12, 64, 49, 5, 5, 0, 0, 0 ], # 53: 720x 576@200.00
- [ 108.000, 1440, 576, "4/3", 288, 24, 126, 49, 4, 6, 0, 0, 1 ], # 54: 1440x 576@100.00
- [ 108.000, 1440, 576, "16/9", 288, 24, 126, 49, 4, 6, 0, 0, 1 ], # 55: 1440x 576@100.00
- [ 108.000, 720, 480, "4/3", 138, 16, 62, 45, 9, 6, 0, 0, 0 ], # 56: 720x 480@239.76
- [ 108.000, 720, 480, "16/9", 138, 16, 62, 45, 9, 6, 0, 0, 0 ], # 57: 720x 480@239.76
- [ 108.000, 1440, 480, "4/3", 276, 38, 124, 45, 8, 6, 0, 0, 1 ], # 58: 1440x 480@119.88
- [ 108.000, 1440, 480, "16/9", 276, 38, 124, 45, 8, 6, 0, 0, 1 ], # 59: 1440x 480@119.88
- [ 59.400, 1280, 720, "16/9", 2020, 1760, 40, 30, 5, 5, 1, 1, 0 ], # 60: 1280x 720@24.00
- [ 74.250, 1280, 720, "16/9", 2680, 2420, 40, 30, 5, 5, 1, 1, 0 ], # 61: 1280x 720@25.00
- [ 74.250, 1280, 720, "16/9", 2020, 1760, 40, 30, 5, 5, 1, 1, 0 ], # 62: 1280x 720@30.00
- [ 297.000, 1920, 1080, "16/9", 280, 88, 44, 45, 4, 5, 1, 1, 0 ], # 63: 1920x1080@120.00
- [ 297.000, 1920, 1080, "16/9", 720, 528, 44, 45, 4, 10, 1, 1, 0 ], # 64: 1920x1080@100.00
-);
-
-sub within_limit {
- my ($value, $type, $limit) = @_;
- $type eq 'min' ? $value >= $limit : $value <= $limit;
-}
-
-sub get_many_bits {
- my ($s, $field_name) = @_;
- my @bits = split('', unpack('B*', $s));
- my %h;
- foreach (@{$subfields{$field_name}}) {
- my ($size, $field) = @$_;
- my @l = ('0' x (8 - $size), splice(@bits, 0, $size));
- $h{$field} = unpack("C", pack('B*', join('', @l))) if $field && $field !~ /^_/;
- }
- \%h;
-}
-
-sub check_parsed_edid {
- my ($edid) = @_;
-
- $edid->{edid_version} >= 1 && $edid->{edid_version} <= 2 or return 'bad edid_version';
- $edid->{edid_revision} != 0xff or return 'bad edid_revision';
-
- if ($edid->{monitor_range}) {
- $edid->{monitor_range}{horizontal_min} &&
- $edid->{monitor_range}{horizontal_min} <= $edid->{monitor_range}{horizontal_max}
- or return 'bad HorizSync';
- $edid->{monitor_range}{vertical_min} &&
- $edid->{monitor_range}{vertical_min} <= $edid->{monitor_range}{vertical_max}
- or return 'bad VertRefresh';
- }
-
- '';
-}
+use Getopt::Long;
+use Parse::EDID;
-sub build_detailed_timing {
- my ($pixel_clock, $vv) = @_;
+GetOptions(
+ 'v' => \ (my $verbose),
+ 'perl' => \ (my $raw_perl),
+ 'MonitorsDB' => \ (my $MonitorsDB),
+) or usage();
- my $h = get_many_bits($vv, 'detailed_timing');
- $h->{pixel_clock} = $pixel_clock / 100; # to have it in MHz
- my %detailed_timing_field_size = map { $_->[1], $_->[0] } @{$subfields{detailed_timing}};
- foreach my $field (keys %detailed_timing_field_size) {
- $field =~ s/_hi$// or next;
- my $hi = delete($h->{$field . '_hi'});
- $h->{$field} += $hi << $detailed_timing_field_size{$field};
- }
- $h;
+my ($file, $F);
+if (@ARGV == 0) {
+ $F = *STDIN;
+} elsif (@ARGV == 1) {
+ open($F, $file = $ARGV[0]) or usage();
+} else {
+ usage();
}
-sub add_standard_timing_modes {
- my ($edid, $v) = @_;
+my $input = join('', <$F>);
- my @aspect2ratio = (
- $edid->{edid_version} > 1 || $edid->{edid_revision} > 2 ? '16/10' : '1/1',
- '4/3', '5/4', '16/9',
- );
- $v = [ map {
- my $h = get_many_bits($_, 'standard_timing');
- $h->{X} = ($h->{X} + 31) * 8;
- if ($_ ne "\x20\x20" && $h->{X} > 256) { # cf VALID_TIMING in Xorg edid.h
- $h->{vfreq} += 60;
- if ($h->{ratio} = $aspect2ratio[$h->{aspect}]) {
- delete $h->{aspect};
- $h->{Y} = $h->{X} / eval($h->{ratio});
- }
- $h;
- } else { () }
- } unpack('a2' x (length($v) / 2), $v) ];
- $v;
+my @raw_edids;
+my $length = length($input);
+if ($length % 128 == 0 && $length >= 128 && $length <= 128 * 254) {
+ @raw_edids = $input;
+} else {
+ @raw_edids = find_edid_in_string($input) or error("bad edid");
}
-sub parse_edid {
- my ($raw_edid, $verbose) = @_;
-
- my %edid;
- my ($main_edid, @eedid_blocks) = unpack("a128" x (length($raw_edid) / 128), $raw_edid);
- my @vals = unpack(join('', map { $_->[0] } @edid_info), $main_edid);
- my $i;
- foreach (@edid_info) {
- my ($field, $v) = ($_->[1], $vals[$i++]);
-
- if ($field eq 'year') {
- $v += 1990;
- } elsif ($field eq 'manufacturer_name') {
- my $h = get_many_bits($v, 'manufacturer_name');
- $v = join('', map { chr(ord('A') + $h->{$_} - 1) } 1 .. 3);
- $v = "" if $v eq "@@@";
- } elsif ($field eq 'video_input_definition') {
- $v = get_many_bits($v, 'video_input_definition');
- } elsif ($field eq 'feature_support') {
- $v = get_many_bits($v, 'feature_support');
- } elsif ($field eq 'established_timings') {
- my $h = get_many_bits($v, 'established_timings');
- $v = [
- sort { $a->{X} <=> $b->{X} || $a->{vfreq} <=> $b->{vfreq} }
- map { /(\d+)x(\d+)_(\d+)(i?)/ ? { X => $1, Y => $2, vfreq => $3, $4 ? (interlace => 1) : () } : () }
- grep { $h->{$_} } keys %$h ];
- } elsif ($field eq 'standard_timings') {
- $v = add_standard_timing_modes(\%edid, $v);
- } elsif ($field eq 'monitor_details') {
- while ($v) {
- (my $pixel_clock, my $vv, $v) = unpack("v a16 a*", $v);
-
- if ($pixel_clock) {
- # detailed timing
- my $h = build_detailed_timing($pixel_clock, $vv);
- push @{$edid{detailed_timings}}, $h
- if $h->{horizontal_active} > 1 && $h->{vertical_active} > 1;
- } else {
- (my $flag, $vv) = unpack("n x a*", $vv);
-
- if ($flag == 0xfd) {
- # range
- $edid{monitor_range} = get_many_bits($vv, 'monitor_range');
- if ($edid{monitor_range}{pixel_clock_max} == 0xff) {
- delete $edid{monitor_range}{pixel_clock_max};
- } else {
- $edid{monitor_range}{pixel_clock_max} *= 10; #- to have it in MHz
- }
- } elsif ($flag == 0xf) {
- my $range = get_many_bits($vv, 'manufacturer_specified_range_timing');
-
- my $e = $edid{detailed_timings}[0];
- my $valid = 1;
- foreach my $m ('min', 'max') {
- my %total;
- foreach my $dir ('horizontal', 'vertical') {
- $range->{$dir . '_sync_pulse_width_' . $m} *= 2;
- $range->{$dir . '_back_porch_' . $m} *= 2;
- $range->{$dir . '_blanking_' . $m} *= 2;
- if ($e && $e->{$dir . '_active'}
- && within_limit($e->{$dir . '_blanking'}, $m, $range->{$dir . '_blanking_' . $m})
- && within_limit($e->{$dir . '_sync_pulse_width'}, $m, $range->{$dir . '_sync_pulse_width_' . $m})
- && within_limit($e->{$dir . '_blanking'} - $e->{$dir . '_sync_offset'} - $e->{$dir . '_sync_pulse_width'},
- $m, $range->{$dir . '_back_porch_' . $m})) {
- $total{$dir} = $e->{$dir . '_active'} + $range->{$dir . '_blanking_' . $m};
- }
- }
- if ($total{horizontal} && $total{vertical}) {
- my $hfreq = $e->{pixel_clock} * 1000 / $total{horizontal};
- my $vfreq = $hfreq * 1000 / $total{vertical};
- $range->{'horizontal_' . ($m eq 'min' ? 'max' : 'min')} = round($hfreq);
- $range->{'vertical_' . ($m eq 'min' ? 'max' : 'min')} = round($vfreq);
- } else {
- $valid = 0;
- }
- }
- $edid{$valid ? 'monitor_range' : 'manufacturer_specified_range_timing'} = $range;
-
- } elsif ($flag == 0xfa) {
- push @{$edid{standard_timings}}, add_standard_timing_modes(\%edid, unpack('a12', $vv));
- } elsif ($flag == 0xfc) {
- my $prev = $edid{monitor_name};
- $edid{monitor_name} = ($prev ? "$prev " : '') . unpack('A13', $vv);
- } elsif ($flag == 0xfe) {
- push @{$edid{monitor_text}}, unpack('A13', $vv);
- } elsif ($flag == 0xff) {
- push @{$edid{serial_number2}}, unpack('A13', $vv);
- } else {
- $verbose && $vv ne "\0" x 13 && $vv ne " " x 13 and
- warn "parse_edid: unknown flag $flag\n";
- }
- }
- }
- }
-
- $edid{$field} = $v if $field && $field !~ /^_/;
- }
-
- foreach (@eedid_blocks) {
- my ($tag, $v) = unpack("C a*", $_);
-
- if ($tag == 0x02) { # CEA EDID
- my $dtd_offset;
- ($dtd_offset, $v) = unpack("x C x a*", $v);
-
- next if $dtd_offset < 4;
- $dtd_offset -= 4;
-
- while ($dtd_offset > 0) {
- my $h = get_many_bits($v, 'cea_data_block_collection');
- $dtd_offset -= $h->{size} + 1;
-
- my $vv;
- ($vv, $v) = unpack("x a$h->{size} a*", $v);
- if ($h->{type} == 0x02) { # Video Data Block
- my @vmodes = unpack("a" x $h->{size}, $vv);
- foreach my $vmode (@vmodes) {
- $h = get_many_bits($vmode, 'cea_video_data_block');
- my $cea_mode = $cea_video_modes[$h->{mode} - 1];
- if (!$cea_mode) {
- warn "parse_edid: unhandled CEA mode $h->{mode}\n" if $verbose;
- next;
- }
- my %det_mode = (source => 'cea_vdb');
- @det_mode{@cea_video_mode_to_detailed_timing} = @$cea_mode;
- push @{$edid{detailed_timings}}, \%det_mode;
- }
- }
- }
-
- while (length($v) >= 18) {
- (my $pixel_clock, my $vv, $v) = unpack("v a16 a*", $v);
- last if !$pixel_clock;
- my $h = build_detailed_timing($pixel_clock, $vv);
- push @{$edid{detailed_timings}}, $h
- if $h->{horizontal_active} > 1 && $h->{vertical_active} > 1;
- }
- } else {
- $verbose && warn "parse_edid: unknown tag $tag\n";
- }
- }
-
- $edid{max_size_precision} = 'cm';
- $edid{EISA_ID} = $edid{manufacturer_name} . sprintf('%04x', $edid{product_code}) if $edid{product_code} && $edid{manufacturer_name};
-
- if ($edid{monitor_range}) {
- $edid{HorizSync} = $edid{monitor_range}{horizontal_min} . '-' . $edid{monitor_range}{horizontal_max};
- $edid{VertRefresh} = $edid{monitor_range}{vertical_min} . '-' . $edid{monitor_range}{vertical_max};
- }
-
- if ($edid{max_size_vertical}) {
- $edid{ratio} = $edid{max_size_horizontal} / $edid{max_size_vertical};
- $edid{ratio_name} = ratio_name($edid{max_size_horizontal}, $edid{max_size_vertical}, 'cm');
- $edid{ratio_precision} = 'cm';
- }
-
- if ($edid{feature_support}{has_preferred_timing} && $edid{detailed_timings}[0]) {
- $edid{detailed_timings}[0]{preferred} = 1;
- }
-
- foreach my $h (@{$edid{detailed_timings}}) {
-
- # EDID standard is ambiguous on how interlaced modes should be
- # specified; workaround clearly broken modes:
- if ($h->{interlaced}) {
- foreach ("720x480", "1440x480", "2880x480", "720x576", "1440x576", "2880x576", "1920x1080") {
- if ($_ eq $h->{horizontal_active} . 'x' . $h->{vertical_active} * 2) {
- $h->{vertical_active} *= 2;
- $h->{vertical_blanking} *= 2;
- $h->{vertical_sync_offset} *= 2;
- $h->{vertical_sync_pulse_width} *= 2;
- $h->{vertical_blanking} |= 1;
- }
- }
- }
-
- # if the mm size given in the detailed_timing is not far from the cm size
- # put it as a more precise cm size
- my %in_cm = map { $_ => $h->{$_ . '_image_size'} / 10 } ('horizontal', 'vertical');
- my ($error) = sort { $b <=> $a } map { abs($edid{'max_size_' . $_} - $in_cm{$_}) } keys %in_cm;
- if ($error <= 0.5) {
- $edid{'max_size_' . $_} = $in_cm{$_} foreach keys %in_cm;
- $edid{max_size_precision} = 'mm';
- }
- if ($error < 1 && $in_cm{vertical}) {
- # using it for the ratio
- $edid{ratio} = $in_cm{horizontal} / $in_cm{vertical};
- $edid{ratio_name} = ratio_name($in_cm{horizontal}, $in_cm{vertical}, 'mm');
- $edid{ratio_precision} = 'mm';
- }
-
- $h->{bad_ratio} = 1 if abs($edid{ratio} - $h->{horizontal_active} / $h->{vertical_active}) > ($edid{ratio_precision} eq 'mm' ? 0.02 : 0.2);
-
- if ($edid{max_size_vertical}) {
- $h->{vertical_dpi} = $h->{vertical_active} / $edid{max_size_vertical} * 2.54;
- }
- if ($edid{max_size_horizontal}) {
- $h->{horizontal_dpi} = $h->{horizontal_active} / $edid{max_size_horizontal} * 2.54;
- }
- my $dpi_string = '';
- if ($h->{vertical_dpi} && $h->{horizontal_dpi}) {
- $dpi_string =
- abs($h->{vertical_dpi} / $h->{horizontal_dpi} - 1) < 0.05 ?
- sprintf("%d dpi", $h->{horizontal_dpi}) :
- sprintf("%dx%d dpi", $h->{horizontal_dpi}, $h->{vertical_dpi});
- }
-
- my $horizontal_total = $h->{horizontal_active} + $h->{horizontal_blanking};
- my $vertical_total = $h->{vertical_active} + $h->{vertical_blanking};
-
- $h->{ModeLine_comment} = sprintf qq(# Monitor %s%s modeline (%.1f Hz vsync, %.1f kHz hsync, %sratio %s%s)),
- $h->{preferred} ? "preferred" : "supported",
- $h->{source} eq 'cea_vdb' ? " CEA" : '',
- $h->{pixel_clock} / $horizontal_total / $vertical_total * 1000 * 1000 * ($h->{interlaced} ? 2 : 1),
- $h->{pixel_clock} / $horizontal_total * 1000,
- $h->{interlaced} ? "interlaced, " : '',
- nearest_ratio($h->{horizontal_active} / $h->{vertical_active}, 0.01) || sprintf("%.2f", $h->{horizontal_active} / $h->{vertical_active}),
- $dpi_string ? ", $dpi_string" : '';
-
- $h->{ModeLine} = sprintf qq("%dx%d" $h->{pixel_clock} %d %d %d %d %d %d %d %d %shsync %svsync%s),
- $h->{horizontal_active}, $h->{vertical_active},
-
- $h->{horizontal_active},
- $h->{horizontal_active} + $h->{horizontal_sync_offset},
- $h->{horizontal_active} + $h->{horizontal_sync_offset} + $h->{horizontal_sync_pulse_width},
- $horizontal_total,
-
- $h->{vertical_active},
- $h->{vertical_active} + $h->{vertical_sync_offset},
- $h->{vertical_active} + $h->{vertical_sync_offset} + $h->{vertical_sync_pulse_width},
- $vertical_total,
-
- $h->{horizontal_sync_positive} ? '+' : '-',
- $h->{vertical_sync_positive} ? '+' : '-',
- $h->{interlaced} ? ' Interlace' : '';
+foreach my $raw_edid (@raw_edids) {
+ my $edid = parse_edid($raw_edid, $verbose);
+ if (my $err = check_parsed_edid($edid)) {
+ die "$err\n";
}
+ $edid->{file} = $file if $file;
- $edid{diagonal_size} = sqrt(sqr($edid{max_size_horizontal}) +
- sqr($edid{max_size_vertical})) / 2.54;
-
- \%edid;
-}
-
-sub nearest_ratio {
- my ($ratio, $max_error) = @_;
- my @sorted =
- sort { $a->[1] <=> $b->[1] }
- map {
- my $error = abs($ratio - eval($_));
- $error > $max_error ? () : [ $_, $error ];
- } @known_ratios;
- $sorted[0][0];
-}
-
-sub ratio_name {
- my ($horizontal, $vertical, $precision) = @_;
-
- if ($precision eq 'mm') {
- nearest_ratio($horizontal / $vertical, 0.1);
+ if ($raw_perl) {
+ use Data::Dumper;
+ $Data::Dumper::Sortkeys = 1;
+ my $s = Dumper($edid);
+ $s =~ s/.*? = {/+{/; # remove variable name we don't want
+ $s =~ s/};$/}/m;
+ print $s;
+ } elsif ($MonitorsDB) {
+ my $s = to_MonitorsDB($edid);
+ print "$s\n" if $s;
} else {
- my $error = 0.5;
- my $ratio1 = nearest_ratio(($horizontal + $error) / ($vertical - $error), 0.2);
- my $ratio2 = nearest_ratio(($horizontal - $error) / ($vertical + $error), 0.2);
- $ratio1 && $ratio2 or return;
- if ($ratio1 eq $ratio2) {
- $ratio1;
- } else {
- my $ratio = nearest_ratio($horizontal / $vertical, 0.2);
- join(' or ', $ratio, $ratio eq $ratio1 ? $ratio2 : $ratio1);
- }
+ print_edid($edid, $verbose);
}
}
-sub to_MonitorsDB {
- my ($edid) = @_;
-
- if (!$edid->{monitor_range}) {
- print STDERR "No monitor range data in EDID.\n";
- return;
- }
- if (!$edid->{EISA_ID}) {
- print STDERR "No monitor EISA_ID in EDID.\n";
- return;
- }
-
- my $detailed_timings = $edid->{detailed_timings} || [];
- my @preferred_resolutions = map {
- join('x', $_->{horizontal_active}, $_->{vertical_active});
- } grep { !$_->{bad_ratio} } @$detailed_timings;
-
- (my $monitor_name = $edid->{monitor_name}) =~ s/;/,/g;
- my ($raw_vendor, $raw_model) = $edid->{EISA_ID} =~ /(...)(.*)/;
- my ($VendorName, $only_Model) =
- $monitor_name =~ /(\S+)\s(.*)/ ?
- ($1, $2) :
- ($raw_vendor, $monitor_name || $raw_model);
+sub usage() {
+ die <<'EOF';
+usage: monitor-parse-edid [-v] [--perl] [<edid file>]
+You can also do "xrandr --prop | monitor-parse-edid"
+EOF
+}
- join('; ',
- $VendorName, "$VendorName $only_Model", $edid->{EISA_ID},
- sprintf("%u-%u", $edid->{monitor_range}{horizontal_min}, $edid->{monitor_range}{horizontal_max}),
- sprintf("%u-%u", $edid->{monitor_range}{vertical_min}, $edid->{monitor_range}{vertical_max}),
- @$detailed_timings == 1 ? @preferred_resolutions : (),
- );
+sub error {
+ my ($msg) = @_;
+ print STDERR ($file ? "$file: " : ''), $msg, "\n";
+ exit 1;
}
sub print_edid {
@@ -659,97 +121,3 @@ sub print_edid {
print "\tModeLine ", $h->{ModeLine}, "\n";
}
}
-
-sub edid_from_lines {
- my (@l) = @_;
- my $edid_str = join('', map { /\s+([0-9a-f]{32})$/ && $1 } @l);
- if (length($edid_str) % (2 * 128) != 0 || length($edid_str) == 0) {
- return ();
- }
- pack("C*", map { hex($_) } $edid_str =~ /(..)/g);
-}
-
-sub find_edid_in_string {
- my ($input) = @_;
-
- my @edids;
- while ($input =~ /(?:EDID_DATA|: EDID \(in hex\)):\n((.*\n){8})/g) {
- push @edids, edid_from_lines(split '\n', $1);
- }
- if (!@edids) {
- @edids = edid_from_lines(split '\n', $input);
- }
- @edids;
-}
-
-sub usage() {
- die <<'EOF';
-usage: monitor-parse-edid [-v] [--perl] [<edid file>]
-You can also do "xrandr --prop | monitor-parse-edid"
-EOF
-}
-
-use Getopt::Long;
-GetOptions(
- 'v' => \ (my $verbose),
- 'perl' => \ (my $raw_perl),
- 'MonitorsDB' => \ (my $MonitorsDB),
-) or usage();
-
-my ($file, $F);
-if (@ARGV == 0) {
- $F = *STDIN;
-} elsif (@ARGV == 1) {
- open($F, $file = $ARGV[0]) or usage();
-} else {
- usage();
-}
-
-my $input = join('', <$F>);
-
-sub error {
- my ($msg) = @_;
- print STDERR ($file ? "$file: " : ''), $msg, "\n";
- exit 1;
-}
-
-my @raw_edids;
-my $length = length($input);
-if ($length % 128 == 0 && $length >= 128 && $length <= 128 * 254) {
- @raw_edids = $input;
-} else {
- @raw_edids = find_edid_in_string($input) or error("bad edid");
-}
-
-foreach my $raw_edid (@raw_edids) {
- my $edid = parse_edid($raw_edid, $verbose);
- if (my $err = check_parsed_edid($edid)) {
- die "$err\n";
- }
- $edid->{file} = $file if $file;
-
- if ($raw_perl) {
- use Data::Dumper;
- $Data::Dumper::Sortkeys = 1;
- my $s = Dumper($edid);
- $s =~ s/.*? = {/+{/; # remove variable name we don't want
- $s =~ s/};$/}/m;
- print $s;
- } elsif ($MonitorsDB) {
- my $s = to_MonitorsDB($edid);
- print "$s\n" if $s;
- } else {
- print_edid($edid, $verbose);
- }
-}
-
-
-sub sqr { $_[0] * $_[0] }
-sub round { int($_[0] + 0.5) }
-sub group_by2 {
- my @l;
- for (my $i = 0; $i < @_; $i += 2) {
- push @l, [ $_[$i], $_[$i+1] ];
- }
- @l;
-}