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package Image::Info::XPM; |
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$VERSION = '1.09'; |
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use strict; |
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use Image::Xpm 1.09; |
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sub process_file{ |
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my($info, $source, $opts) = @_; |
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local $SIG{__WARN__} = sub { |
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$info->push_info(0, "Warn", shift); |
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}; |
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my $i = Image::Xpm->new(-width => 0, -height => 0); |
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# loading the file as a separate step avoids a "-r" test, this would |
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# file with in-memory strings (aka fake files) |
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$i->load($source); |
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$info->push_info(0, "color_type" => "Indexed-RGB"); |
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$info->push_info(0, "file_ext" => "xpm"); |
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$info->push_info(0, "file_media_type" => "image/x-xpixmap"); |
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$info->push_info(0, "height", $i->get(-height)); |
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$info->push_info(0, "resolution", "1/1"); |
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$info->push_info(0, "width", $i->get(-width)); |
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$info->push_info(0, "BitsPerSample" => 8); |
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$info->push_info(0, "SamplesPerPixel", 1); |
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$info->push_info(0, "XPM_CharactersPerPixel" => $i->get(-cpp) ); |
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# XXX is this always? |
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$info->push_info(0, "ColorResolution", 8); |
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$info->push_info(0, "ColorTableSize" => $i->get(-ncolours) ); |
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if( $opts->{ColorPalette} ){ |
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$info->push_info(0, "ColorPalette" => [keys %{$i->get(-cindex)}] ); |
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} |
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if( $opts->{L1D_Histogram} ){ |
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#Do Histograms |
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my(%RGB, @l1dhist, $R, $G, $B, $color); |
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for(my $y=0; $y<$i->get(-height); $y++){ |
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for(my $x=0; $x<$i->get(-width); $x++){ |
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$color = $i->xy($x, $y); |
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if( $color =~ /^(none|opaque)$/i ) { |
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next; |
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} elsif( $color !~ /^#/ ){ |
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unless( exists($RGB{white}) ){ |
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local $_; |
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if( open(RGB, _get_rgb_txt()) ){ |
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while(){ |
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next if /^\s*!/; |
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/(\d+)\s+(\d+)\s+(\d+)\s+(.*)/; |
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$RGB{$4}=[$1,$2,$3]; |
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} |
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} |
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else{ |
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$RGB{white} = "0 but true"; |
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$info->push_info(0, "Warn", "Unable to open RGB database, you may need to set \$Image::Info::XPM::RGBLIB"); |
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} |
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} |
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$R = $RGB{$color}->[0]; |
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$G = $RGB{$color}->[1]; |
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$B = $RGB{$color}->[2]; |
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} |
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elsif (length $color == 7) { |
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$R = hex(substr($color,1,2)); |
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$G = hex(substr($color,3,2)); |
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$B = hex(substr($color,5,2)); |
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} |
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elsif (length $color == 13) { |
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$R = hex(substr($color,1,2)); |
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$G = hex(substr($color,5,2)); |
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$B = hex(substr($color,9,2)); |
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} |
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elsif (length $color == 4) { |
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$R = hex(substr($color,1,1))*16; |
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$G = hex(substr($color,2,1))*16; |
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$B = hex(substr($color,3,1))*16; |
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} |
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else { |
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warn "Unexpected length in color specification '$color'"; |
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} |
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if( $opts->{L1D_Histogram} ){ |
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$l1dhist[(.3*$R + .59*$G + .11*$B)]++; |
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} |
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} |
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} |
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if( $opts->{L1D_Histogram} ){ |
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$info->push_info(0, "L1D_Histogram", [@l1dhist]); |
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} |
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} |
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$info->push_info(0, "HotSpotX" => $i->get(-hotx) ); |
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$info->push_info(0, "HotSpotY" => $i->get(-hoty) ); |
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$info->push_info(0, 'XPM_Extension-'.ucfirst($i->get(-extname)) => $i->get(-extlines)) if |
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$i->get(-extname); |
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for (@{$i->get(-comments)}) { |
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$info->push_info(0, "Comment", $_); |
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} |
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} |
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sub _get_rgb_txt{ |
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return $Image::Info::XPM::RGBLIB if defined $Image::Info::XPM::RGBLIB; |
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# list taken from Tk::ColorEditor |
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for my $try( |
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'/usr/local/lib/X11/rgb.txt', |
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'/usr/lib/X11/rgb.txt', |
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'/usr/X11R6/lib/X11/rgb.txt', |
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'/usr/local/X11R5/lib/X11/rgb.txt', |
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'/X11/R5/lib/X11/rgb.txt', |
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'/X11/R4/lib/rgb/rgb.txt', |
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'/usr/openwin/lib/X11/rgb.txt', |
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'/usr/share/X11/rgb.txt', # This is the Debian and RH5 location |
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'/usr/X11/share/X11/rgb.txt', # seen on a Mac OS X 10.5.1 system |
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'/usr/X11R6/share/X11/rgb.txt', # seen on a OpenBSD 4.2 system |
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'/etc/X11R6/rgb.txt', |
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'/etc/X11/rgb.txt', # seen on HP-UX 11.31 |
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){ |
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if( -r $try ){ |
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$Image::Info::XPM::RGBLIB = $try; |
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return $try; |
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} |
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} |
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undef; |
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} |
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1; |
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__END__ |