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git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@238 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/program/src/VeraMono.ttf b/program/src/VeraMono.ttf
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Binary files /dev/null and b/program/src/VeraMono.ttf differ

diff --git a/program/src/compile_afm.pl b/program/src/compile_afm.pl
new file mode 100644 (file)
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+++ b/program/src/compile_afm.pl
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+#!/usr/local/bin/perl -w
+
+require 5.005;
+use strict;
+
+# The glyps list can be downloaded from
+# http://partners.adobe.com/asn/developer/type/glyphlist.txt
+# This URL is from this page:
+# http://partners.adobe.com/asn/developer/type/unicodegn.html
+# which is refered from
+# http://partners.adobe.com/asn/developer/technotes/fonts.html
+
+my $onlyHelvetica = 0;
+
+my %globalName2Unicode;
+my %font_code = ();
+
+my $indent0 = "";
+my $indent1 = "  ";
+my $indent2 = $indent1 x 3;
+
+my $q = 0;
+my $qU = 0;
+
+sub read_glyphlist
+{
+  my $fn ="glyphlist.txt";
+  open(FH, $fn)
+  || die "Can't read $fn\n";
+  my %seen = ();
+  while (<FH>) {
+    next if /^\s*#/;
+    next unless /^([0-9A-F]{4});(\w+);/;
+    my $unicode = 0 + hex($1);
+    my $name = $2;
+    next if ($globalName2Unicode{$name});
+    $globalName2Unicode{$name} = $unicode;
+  }
+  close(FH);
+}
+
+sub process_all_fonts
+{
+  my $dir = ".";
+  my $wc = "*.afm";
+  $wc = "Helvetica.afm" if $onlyHelvetica;
+  $wc = "ZapfDin.afm" if 0;
+  $wc = "Helve*.afm" if 0;
+  $wc = "Times-BoldItalic.afm" if 0;
+  foreach my $fn (glob("$dir/$wc")) {
+    process_font($fn);
+  }
+}
+
+sub process_font
+{
+  my ($fn) = @_;
+  print STDERR "Compiling afm file: $fn\n";
+  my %fi = (); # font info
+  my $c = "";
+  $fi{C} = \$c;
+  $fi{ligaturesR} = {};
+  $fi{FontSpecificUnicodeNameToChar} = {};
+  $fi{filename} = $fn;
+  $fi{filename} =~ s/.*\///;
+  open(FH, $fn) || die "Can't open $fn\n";
+  print STDERR "Reads global font info\n" if $q;
+  while (<FH>) {
+    chomp;
+    next if /^\s*$/ || /^\s*#/;
+    last if /^StartCharMetrics/;
+    next unless (/^(\S+)\s+(\S(.*\S)?)/);
+    my $id = $1;
+    my $value = $2;
+    $value =~ s/\s+/ /g;
+    $fi{"Afm$id"} = $value;
+  }
+  my $fontName = $fi{AfmFontName};
+  $c .= "\n\n/* ". ("-" x 66) . "*/\n";
+  $c .= "/* FontName: $fontName */\n";
+  $c .= "/* FullName: $fi{AfmFullName} */\n";
+  $c .= "/* FamilyName: $fi{AfmFamilyName} */\n";
+  $fi{cName} = $fontName;
+  $fi{cName} =~ s/\W/_/g;
+  my %charMetrics = ();
+  my %kerning = ();
+  read_charmetrics(\%fi, \%charMetrics);
+  while (<FH>) {
+    read_kerning(\%fi, \%kerning) if /^StartKernPairs/;
+  }
+  if (0) {
+    my @names = keys %charMetrics;
+    print STDERR "Did read ", ($#names + 1), " font metrics\n";
+  }
+  write_font(\%fi, \%charMetrics, \%kerning);
+}
+
+sub read_charmetrics
+{
+  my ($fiR, $charMetricsR) = @_;
+  print STDERR "Reads char metric info\n" if $q;
+  my $isZapfDingbats = $$fiR{AfmFontName} eq "ZapfDingbats";
+  my $ligaturesR = $$fiR{ligaturesR};
+  my %ligatures = ();
+  my %seenUnicodes = ();
+  while (<FH>) {
+    chomp;
+    next if /^\s*$/ || /^\s*#/;
+    last if /^EndCharMetrics/;
+#next unless /N S / || /N comma /;
+#next unless /N ([sfil]|fi) /;
+#print "$_\n";
+    my $line = $_;
+# C 102 ; WX 333 ; N f ; B -169 -205 446 698 ; L i fi ; L l fl ;
+    my ($width, $unicode, $name, @charLigatures);
+    foreach (split/\s*;\s*/, $line) {
+      if (/^C\s+(-?\d+)/) {
+        $unicode = 0 + $1;
+      } elsif (/^N\s+(\w+)/) {
+        $name = $1;
+      } elsif (/^WX?\s+(-?\d+)/) {
+        $width = normalize_width($1, 0);
+      } elsif (/^L\s+(\w+)\s+(\w+)/) {
+        push(@charLigatures, $1, $2);
+      }
+    }
+    if ($unicode < 0) {
+      unless (defined $name) {
+        print STDERR "Glyph missing name and code: $_\n";
+        next;
+      }
+      $unicode = name2uni($fiR, $name);
+      print STDERR "name2uni: $name -> $unicode\n" if $qU && 0;
+    } elsif (defined $name) {
+      my $std = $globalName2Unicode{$name};
+      if (!defined $std) {
+        print STDERR "Adds unicode mapping: ",
+          "$name -> $unicode\n" if $qU;
+        ${$$fiR{FontSpecificUnicodeNameToChar}}{$name} = $unicode;
+      } else {
+        $unicode = $std;
+      }
+    }
+    if (!defined($unicode) || $unicode <= 0) {
+      next if $isZapfDingbats && $name =~ /^a(\d+)$/;
+      next if $$fiR{AfmFontName} eq "Symbol" && $name eq "apple";
+      print STDERR "Glyph '$name' has unknown unicode: $_\n";
+      next;
+    }
+    unless (defined $width) {
+      print STDERR "Glyph '$name' missing width: $_\n";
+      next;
+    }
+    if ($seenUnicodes{$unicode}) {
+      print STDERR "Duplicate character: unicode = $unicode, ",
+        "$name and ", $seenUnicodes{$unicode},
+        " (might be due to Adobe charset remapping)\n";
+      next;
+    }
+    $seenUnicodes{$unicode} = $name;
+    my %c = ();
+    $c{name} = $name;
+    $c{unicode} = $unicode;
+    $c{width} = $width;
+    $$charMetricsR{$unicode} = \%c;
+    $ligatures{$unicode} = \@charLigatures if $#charLigatures >= 0;
+  }
+  foreach my $unicode (keys %ligatures) {
+    my $aR = $ligatures{$unicode};
+    my $unicode2 = name2uni($fiR, $$aR[0]);
+    my $unicode3 = name2uni($fiR, $$aR[1]);
+    unless ($unicode2) {
+      print STDERR "Missing ligature char 1: $$aR[0]\n";
+      next;
+    }
+    unless ($unicode3) {
+      print STDERR "Missing ligature char 2: $$aR[1]\n";
+      next;
+    }
+    my $key = sprintf("%04d;%04d", $unicode, $unicode2);
+    $$ligaturesR{$key} = $unicode3;
+  }
+}
+
+sub name2uni
+{
+  my ($fiR, $name) = @_;
+  my $fontMapR = $$fiR{FontSpecificUnicodeNameToChar};
+  return $globalName2Unicode{$name} || $$fontMapR{$name};
+}
+
+sub read_kerning
+{
+  my ($fiR, $kerningR) = @_;
+  print STDERR "Reads kerning info\n" if $q;
+  while (<FH>) {
+    chomp;
+    next if /^\s*$/ || /^\s*#/;
+    last if /^EndKernPairs/;
+    unless (/^KPX\s+(\w+)\s+(\w+)\s+(-?\d+)\s*$/) {
+      print STDERR "Can't parse kern spec: $_\n";
+      next;
+    }
+    my $name1 = $1;
+    my $name2 = $2;
+    my $delta = normalize_width($3, 1);
+    next unless $delta;
+    my $unicode1 = name2uni($fiR, $name1);
+    my $unicode2 = name2uni($fiR, $name2);
+    unless ($unicode1 && $unicode2) {
+      print "Unknown kern pair: $name1 and $name2\n";
+      next;
+    }
+    my $charR = $$kerningR{$unicode1};
+    unless (defined $charR) {
+      my %c = ();
+      $charR = \%c;
+      $$kerningR{$unicode1} = $charR;
+    }
+    $$charR{$unicode2} = $delta;
+  }
+}
+
+sub write_font
+{
+  my ($fiR, $charMetricsR, $kerningR) = @_;
+  print STDERR "Writes font\n" if $q;
+  my $cR = $$fiR{C};
+  $$fiR{widthsA} = make_array();
+  $$fiR{kerning_indexA} = make_array();
+  $$fiR{kerning_dataA} = make_array();
+  $$fiR{highchars_indexA} = make_array();
+  $$fiR{ligaturesA} = make_array();
+  write_font_metrics($fiR, $charMetricsR, $kerningR);
+  write_ligatures($fiR);
+  my $widths_count = array_size($$fiR{widthsA});
+  my $kerning_index_count = array_size($$fiR{kerning_indexA});
+  my $kerning_data_count = array_size($$fiR{kerning_dataA});
+  my $highchars_count = array_size($$fiR{highchars_indexA});
+  my $ligatures_count = array_size($$fiR{ligaturesA}) / 3;
+  my $info_code = "";
+  my $i2 = $indent2;
+  my $packedSize = $widths_count + 2 * $kerning_index_count +
+     $kerning_data_count + 2 * $highchars_count +
+     3 * 2 * $ligatures_count;
+  $info_code .= $indent1 . "{ /* $$fiR{filename}   $packedSize bytes */\n";
+    $info_code .= $i2 . "\"$$fiR{AfmFontName}\",";
+    $info_code .= " \"$$fiR{AfmFullName}\",\n";
+    $info_code .= $i2 . $$fiR{widthsACName} . ",\n";
+    $info_code .= $i2 . $$fiR{kerning_indexACName} . ",\n";
+    $info_code .= $i2 . $$fiR{kerning_dataACName} . ",\n";
+    $info_code .= $i2 . $$fiR{highchars_indexACName} . ", ";
+    $info_code .= $highchars_count . ",\n";
+    $info_code .= $i2 . $$fiR{ligaturesACName} . ", ";
+    $info_code .= $ligatures_count;
+    $info_code .= "},\n";
+  $font_code{$$fiR{AfmFullName}} = { TABLES => $$cR, INFO => $info_code};
+}
+
+sub write_font_metrics
+{
+  my ($fiR, $charMetricsR, $kerningR) = @_;
+  print STDERR "Writes font metrics\n" if $q;
+  my $lastUnicode = 31;
+  my $cR = $$fiR{C};
+  my $widthsA = $$fiR{widthsA};
+  my $kerning_indexA = $$fiR{kerning_indexA};
+  my $kerning_dataA = $$fiR{kerning_dataA};
+  my $highchars_indexA = $$fiR{highchars_indexA};
+  my @uniArray = sort { $a <=> $b } keys %$charMetricsR;
+  my $highchars_count = 0;
+  my $had_kerning = 0;
+  while (1) {
+    my $fill = 0;
+    if ($#uniArray < 0) {
+      last if $lastUnicode > 126;
+      $fill = 1;
+    } elsif ($lastUnicode < 126 && $uniArray[0] > $lastUnicode + 1) {
+      $fill = 1;
+    }
+    if ($fill) {
+      $lastUnicode++;
+#print STDERR "fill for $lastUnicode, $#uniArray, $uniArray[0]\n";
+      append_to_array($widthsA, 0);
+      append_to_array($kerning_indexA, 0);
+      next;
+    }
+    my $unicode = shift @uniArray;
+    next if $unicode < 32;
+    $lastUnicode = $unicode;
+    my $metricsR = $$charMetricsR{$unicode};
+    if ($unicode > 126) {
+      append_to_array($highchars_indexA, $unicode);
+      $highchars_count++;
+    }
+    my $m = $$metricsR{width};
+    $m = "/* ".array_size($widthsA)."=$unicode */". $m if 0;
+    append_to_array($widthsA, $m);
+    my $kerningInfoR = $$kerningR{$unicode};
+    my $kerning_index = 0;
+    if (defined $kerningInfoR) {
+      my @kerns = ();
+      foreach my $unicode2 (sort { $a <=> $b } keys %$kerningInfoR) {
+        my $delta = $$kerningInfoR{$unicode2};
+        append_escaped_16bit_int(\@kerns, $unicode2);
+        push(@kerns, $delta);
+        $had_kerning = 1;
+      }
+      $kerning_index = append_8bit_subarray($kerning_dataA, 2, @kerns);
+    }
+    append_to_array($kerning_indexA, $kerning_index);
+  }
+  $$fiR{kerning_indexA} = make_array() if !$had_kerning;
+  write_array($fiR, "widths", "afm_cuint8");
+  write_array($fiR, "kerning_index", "afm_sint16");
+  write_array($fiR, "kerning_data", "afm_cuint8");
+  write_array($fiR, "highchars_index", "afm_cuint16");
+}
+
+sub write_ligatures
+{
+  my ($fiR) = @_;
+  print STDERR "Writes font ligatures\n" if $q;
+  my $ligaturesA = $$fiR{ligaturesA};
+  my $ligaturesR = $$fiR{ligaturesR};
+  foreach (sort keys %$ligaturesR) {
+    unless (/^(\w{4});(\w{4})$/) {
+      die "Invalid ligature key: $_";
+    }
+    append_to_array($ligaturesA, $1 + 0, $2 + 0, $$ligaturesR{$_});
+  }
+  write_array($fiR, "ligatures", "afm_cunicode");
+}
+
+sub indent
+{
+  my ($num) = @_;
+  return "  " x $num;
+}
+
+sub make_array
+{
+  my @a = ();
+  return \@a;
+}
+
+sub append_to_array
+{
+  my ($aR, @newElements) = @_;
+  my $z1 = array_size($aR);
+  push(@$aR, @newElements);
+  my $z2 = array_size($aR);
+  my $zz = $#newElements +1;
+}
+
+sub append_8bit_subarray
+{
+  my ($aR, $elementsPerItem, @newElements) = @_;
+  push(@$aR, 42) if !array_size($aR); # initial dummy value
+  my $idx = $#{$aR} + 1;
+#print "append_8bit_subarray ", ($#newElements+1), " = (", join(", ", @newElements), ") -> $idx\n";
+  append_escaped_16bit_int($aR, ($#newElements + 1) / $elementsPerItem);
+  push(@$aR, @newElements);
+  die "Can't handle that big sub array, sorry...\n" if $idx > 50000;
+  return $idx;
+}
+
+sub append_escaped_16bit_int
+{
+  my ($aR, $count) = @_;
+  die "Invalid count = 0\n" unless $count;
+  if ($count >= 510) {
+    push(@$aR, 1, int($count / 256), int($count % 256));
+    print STDERR "full: $count\n" if 0;
+  } elsif ($count >= 254) {
+    push(@$aR, 0, $count - 254);
+    print STDERR "semi: $count\n" if 0;
+  } else {
+    push(@$aR, $count + 1);
+  }
+}
+
+sub array_size
+{
+  my ($aR) = @_;
+  return $#{$aR} + 1;
+}
+
+sub write_array
+{
+  my ($fiR, $name, $type) = @_;
+  my $aR = $$fiR{$name."A"};
+  my $cName = $$fiR{cName};
+  my $num = $#{$aR} + 1;
+  my $array_name_key = $name."ACName";
+  if ($num == 0) {
+    $$fiR{$array_name_key} = "NULL";
+    return;
+  }
+  my $cR = $$fiR{C};
+  my $array_name = "afm_" . $cName . "_" . $name;
+  $$fiR{$array_name_key} = $array_name;
+  $$cR .= "static $type $array_name" . "[] = { /* $num */\n";
+  my $line = $indent1;
+  for (my $i = 0; $i < $num; $i++) {
+    $line .= "," if $i > 0;
+    if (length($line) > 65) {
+      $line .= "\n";
+      $$cR .= $line;
+      $line = $indent1;
+    }
+    $line .= $$aR[$i];
+  }
+  $line .= "\n";
+  $$cR .= $line;
+  $$cR .= "};\n";
+}
+
+sub normalize_width
+{
+  my ($w, $signed) = @_;
+  my $n = int(($w + 3) / 6);
+  if ($signed) {
+    $n = -128 if $n < -128;
+    $n =  127 if $n >  127;
+    $n =  256 + $n if $n < 0; # make unsigned.
+  } else {
+    $n =    0 if $n <    0;
+    $n =  255 if $n >  255;
+  }
+  return $n;
+}
+
+sub main
+{
+  my $cfn = "../../src/rrd_afm_data.c";
+  read_glyphlist();
+  process_all_fonts();
+  my @fonts = sort keys %font_code;
+  unless ($#fonts >= 0) {
+    die "You must have at least 1 font.\n";
+  }
+  open(CFILE, ">$cfn") || die "Can't create $cfn\n";
+  print CFILE header($cfn);
+  print CFILE ${$font_code{$_}}{TABLES} foreach @fonts;
+  print CFILE "const afm_fontinfo afm_fontinfolist[] = {\n";
+  print CFILE ${$font_code{$_}}{INFO} foreach @fonts;
+  print CFILE $indent1 . "{ 0, 0, 0 }\n";
+  print CFILE $indent0 . "};\n";
+  print CFILE $indent0 . "const int afm_fontinfo_count = ",
+    ($#fonts + 1), ";\n";
+  close(CFILE);
+  print STDERR "Compiled ", ($#fonts+1), " fonts.\n";
+}
+
+sub header
+{
+  my ($fn) = @_;
+  $fn =~ s/.*\///;
+  my $h = $fn;
+  $h =~ s/\.c$/.h/;
+  return <<"END";
+/****************************************************************************
+ * RRDtool 1.1.x  Copyright Tobias Oetiker, 1997 - 2002
+ ****************************************************************************
+ * $fn  Encoded afm (Adobe Font Metrics) for selected fonts.
+ ****************************************************************************
+ *
+ * THIS FILE IS AUTOGENERATED BY PERL. DO NOT EDIT.
+ *
+ ****************************************************************************/
+
+#include "$h"
+#include <stdlib.h>
+
+END
+}
+
+main();