convert the ugly mix of tab and spaces into spaces only

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;
 }