diff options
Diffstat (limited to 'lib/Parse/EDID.pm')
| -rwxr-xr-x | lib/Parse/EDID.pm | 678 |
1 files changed, 339 insertions, 339 deletions
diff --git a/lib/Parse/EDID.pm b/lib/Parse/EDID.pm index 6b416b1..055b633 100755 --- a/lib/Parse/EDID.pm +++ b/lib/Parse/EDID.pm @@ -59,123 +59,123 @@ my @edid_info = group_by2( my %subfields = ( manufacturer_name => [ group_by2( - 1 => '', - 5 => '1', - 5 => '2', - 5 => '3', + 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', + 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 => 'DPMS_standby', + 1 => 'DPMS_suspend', + 1 => 'DPMS_active_off', + 1 => 'rgb', - 1 => '', + 1 => '', 1 => 'sRGB_compliance', - 1 => 'has_preferred_timing', + 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', + 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 => '', + 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', + 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', + 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', + # 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', + 3 => 'type', + 5 => 'size', ) ], cea_video_data_block => [ group_by2( - 1 => 'native', - 7 => 'mode', + 1 => 'native', + 7 => 'mode', ) ], ); @@ -275,9 +275,9 @@ sub get_many_bits { 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 && $field !~ /^_/; + my ($size, $field) = @$_; + my @l = ('0' x (8 - $size), splice(@bits, 0, $size)); + $h{$field} = unpack("C", pack('B*', join('', @l))) if $field && $field !~ /^_/; } \%h; } @@ -289,12 +289,12 @@ sub check_parsed_edid { $edid->{edid_revision} != 0xff or return 'bad edid_revision'; if ($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'; + $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'; } ''; @@ -307,9 +307,9 @@ sub build_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}; + $field =~ s/_hi$// or next; + my $hi = delete($h->{$field . '_hi'}); + $h->{$field} += $hi << $detailed_timing_field_size{$field}; } $h; } @@ -318,20 +318,20 @@ sub add_standard_timing_modes { my ($edid, $v) = @_; my @aspect2ratio = ( - $edid->{edid_version} > 1 || $edid->{edid_revision} > 2 ? '16/10' : '1/1', - '4/3', '5/4', '16/9', + $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 { () } + 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; } @@ -344,238 +344,238 @@ sub parse_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 && $field !~ /^_/; + my ($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 $tag\n"; - } + my ($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}; + $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'; + $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; + $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} + $h->{vertical_blanking}; + # EDID standard is ambiguous on how interlaced modes should be + # specified; workaround clearly broken modes: + if ($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}; no warnings 'uninitialized'; - $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' : ''; + $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' : ''; } $edid{diagonal_size} = sqrt(sqr($edid{max_size_horizontal}) + - sqr($edid{max_size_vertical})) / 2.54; + sqr($edid{max_size_vertical})) / 2.54; \%edid; } @@ -584,10 +584,10 @@ 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; + map { + my $error = abs($ratio - eval($_)); + $error > $max_error ? () : [ $_, $error ]; + } @known_ratios; $sorted[0][0]; } @@ -595,18 +595,18 @@ sub ratio_name { my ($horizontal, $vertical, $precision) = @_; if ($precision eq 'mm') { - nearest_ratio($horizontal / $vertical, 0.1); + nearest_ratio($horizontal / $vertical, 0.1); } 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); - } + 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); + } } } @@ -614,7 +614,7 @@ 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($edid_str) == 0) { - return (); + return (); } pack("C*", map { hex($_) } $edid_str =~ /(..)/g); } @@ -624,10 +624,10 @@ sub find_edid_in_string { my @edids; while ($input =~ /(?:EDID_DATA|: EDID \(in hex\)):\n((.*\n){8})/g) { - push @edids, edid_from_lines(split '\n', $1); + push @edids, edid_from_lines(split '\n', $1); } if (!@edids) { - @edids = edid_from_lines(split '\n', $input); + @edids = edid_from_lines(split '\n', $input); } @edids; } @@ -637,7 +637,7 @@ sub round { int($_[0] + 0.5) } sub group_by2 { my @l; for (my $i = 0; $i < @_; $i += 2) { - push @l, [ $_[$i], $_[$i+1] ]; + push @l, [ $_[$i], $_[$i+1] ]; } @l; } |