* doc/subtitles/*, share/font-eutopiabold21.rle: new (smaller) font + scripts

[vlc] / doc / subtitles / vlc-font.pl

diff --git a/doc/subtitles/vlc-font.pl b/doc/subtitles/vlc-font.pl
new file mode 100755 (executable)
index 0000000..3dbe741
--- /dev/null
+++ b/doc/subtitles/vlc-font.pl
@@ -0,0 +1,205 @@
+#! /usr/bin/perl
+
+$file_input="font.pnm";
+$file_output="eutopiabold36.rle";
+$border=-1;
+$spaceborder=4;
+
+$|=1;
+
+open(INPUT,$file_input) || die "Couldn't open font: $!\n";
+
+$tag=<INPUT>; chop($tag);
+if($tag ne "P6")
+  { die "Couldn't process image: not a pnm file ($tag)"; }
+
+$comment=<INPUT>;
+
+$dimensions=<INPUT>; chop($dimensions);
+
+if($dimensions =~ /(\d+) (\d+)/)
+  { $width=$1; $height=$2; }
+else
+  { die "Couldn't process image: couldn't get dimensions"; }
+
+$bits=<INPUT>;
+
+print "width $width height $height\n";
+
+for($j=0; $j<$height; $j++)
+  { for($i=0; $i<$width; $i++)
+      {
+        $red[$i][$j]=ord(getc(INPUT));
+        $green[$i][$j]=ord(getc(INPUT));
+        $blue[$i][$j]=ord(getc(INPUT));
+      }
+    print ".";
+  }
+
+print "\n";
+
+close(INPUT);
+
+open(OUTPUT,">".$file_output) || die "Couldn't open output: $!\n";
+
+# Put header
+print OUTPUT pack("C2",0x36,0x05);
+
+# Put font height
+print OUTPUT pack("C",$height);
+
+$xstart=0;
+
+# Search for space
+
+$xstart=2;
+$x=$xstart; $blank=0;
+while($x<$width && !$blank)
+  { $blank=1;
+    for($y=0; $y<$height; $y++)
+      { if($blue[$x][$y]!=255)
+          { $blank=0; }
+      }
+    if(!$blank)
+      { $x++; }
+  }
+
+$xstart=$x;
+
+$x=$xstart; $blank=1;
+while($x<$width && $blank)
+  { $blank=1;
+    for($y=0; $y<$height; $y++)
+      { if($blue[$x][$y]!=255)
+          { $blank=0; }
+      }
+    if($blank)
+      { $x++; }
+  }
+$xend=$x;
+
+$spacewidth=$xend-$xstart+$spaceborder;
+$spacewidth=$spacewidth/2;
+if($spacewidth==0)
+  { $spacewidth=1; }
+
+print "space start=$xstart end=$xend -> width=$spacewidth\n\n";
+
+# Put space character code
+print OUTPUT pack("C",32);
+
+# Put space width
+print OUTPUT pack("C",$spacewidth);
+
+# Put space RLE data
+for($y=0;$y<$height;$y++)
+  { print OUTPUT pack("C",1);
+    print OUTPUT pack("C",0);
+    print OUTPUT pack("C",$spacewidth);
+  }
+
+$char=33;
+
+while($xstart<$width)
+  {
+    print "looking for character $char \"".chr($char)."\"\n";
+
+    $x=$xstart; $blank=1;
+    while($x<$width && $blank)
+      { $blank=1;
+        for($y=0; $y<$height; $y++)
+          { if($blue[$x][$y]!=255)
+              { $blank=0; }
+          }
+        if($blank)
+          { $x++; }
+      }
+    $xstart=$x;
+
+    $x=$xstart; $blank=0;
+    while($x<$width && !$blank)
+      { $blank=1;
+        for($y=0; $y<$height; $y++)
+          { if($blue[$x][$y]!=255)
+              { $blank=0; }
+          }
+        if(!$blank)
+          { $x++; }
+      }
+    $xend=$x;
+    print "start=$xstart end=$xend\n";
+
+    $dstart=$xstart-$border;
+    if($dstart < 0)
+      { $dstart = 0; }
+    $dend=$xend+$border;
+    if($dend > $width)
+      { $dend = $width; }
+
+    # Put character
+    print OUTPUT pack("C",$char);
+
+    # Put character width
+    print OUTPUT pack("C",$dend-$dstart);
+    
+    for($y=0; $y<$height; $y++)
+      { $linecode=""; $bytecode=""; $lastcolour=-1; $count=0;
+        for($x=$dstart; $x<$dend; $x++)
+          {
+            # Transparent background
+            $c=":"; $colour=0;
+
+            # Anti-aliased foreground 
+            if($blue[$x][$y]<255 && $red[$x][$y]>0)
+              { $c="+"; $colour=1; }
+
+            # Solid foreground
+            if($blue[$x][$y]==255 && $red[$x][$y]==255 )
+              { $c="#"; $colour=2; }
+
+            # Anti-aliased shadow (same as shadow)
+            if($blue[$x][$y]<255 && $red[$x][$y]==0)
+              { $c="."; $colour=3; }
+
+            # Solid shadow
+            if($blue[$x][$y]==0 && $red[$x][$y]==0)
+              { $c=" "; $colour=3; }
+
+            print $c;
+
+            if($colour != $lastcolour)
+              {
+                if($lastcolour!=-1)
+                  { $linecode.=" $lastcolour,$count";
+                    $bytecode.=pack("C2",$lastcolour,$count);
+                  }
+                $lastcolour=$colour; $count=1;
+              }
+            else
+              { $count++; }
+          }
+        if($lastcolour!=-1)
+          { $linecode.=" $lastcolour,$count";
+            $bytecode.=pack("C2",$lastcolour,$count);
+          }
+         print " [$linecode]\n";
+
+        # Put length of RLE line
+        print OUTPUT pack("C*",length($bytecode)/2);
+
+        # Put RLE line
+        print OUTPUT $bytecode;
+
+      }
+
+    print "\n";
+
+    $xstart=$xend+1;
+    $char++;
+  }
+
+print OUTPUT pack("C",255);
+
+print "Done!\n";
+
+close(OUTPUT);