--- /dev/null
+#! /usr/bin/perl -w
+#
+# Convert BDF files to nano-X font files
+# modified by G Haerr from bdftobogl for 16 bit MWIMAGEBITS
+# modified on 2/10/00 by K Harris to accept any size input character
+# modified on 3/26/00 by G Haerr added ascent field, fixed $IMAGE_BITS
+# modified on 2/15/06 by <bernie@develer.com> for DevLib.
+# originally from BOGL - Ben's Own Graphics Library <pfaffben@debian.org>.
+#
+
+use POSIX;
+
+if ($#ARGV < 0) {
+ print "Usage: convbdf font.bdf > font.c\n";
+ exit -1;
+}
+
+$LAST_CHAR = 0xff;
+$IMAGE_BITS = 8;
+$IMAGE_NIBBLES = $IMAGE_BITS/4;
+$IMAGE_MASK = 0xff;
+$IMAGE_VERTICAL = 1;
+
+$file = $ARGV[0];
+
+$font = $file;
+$font =~ s#.*/##; # remove path name
+$font =~ s/\.bdf//;
+$font =~ tr/a-zA-Z0-9_/_/cs;
+
+print "/* Generated by convbdf on ", substr(`date`, 0, -1), ". */\n";
+print "#include <gfx/font.h>\n\n";
+
+open BDF, "<$file" || die;
+while (<BDF>) {
+ chop;
+ $pixel_size = $1 if /^PIXEL_SIZE (\d+)$/;
+ $font_ascent = $1 if /^FONT_ASCENT (\d+)$/;
+ $font_descent = $1 if /^FONT_DESCENT (\d+)$/;
+ $font_name = $1 if /^FONT (.*)$/;
+ $default_char = $1 if /^DEFAULT_CHAR (\d+)$/;
+
+ last if /^CHARS /;
+}
+
+print "/* Font information:\n\n";
+print " name: $font_name\n";
+print " pixel size: $pixel_size\n";
+print " ascent: $font_ascent\n";
+print " descent: $font_descent\n";
+print "*/\n\n";
+
+print "/* Font character bitmap data. */\n";
+print "static const PROGMEM uint8_t font_${font}_glyphs[] = {\n";
+
+$ch_height = $font_ascent + $font_descent;
+$ofs = 0;
+$maxwidth = 0;
+$proportional = 0;
+$firstchar = -1;
+while (<BDF>) {
+ chop;
+ undef $encoding, undef $width, undef $bbx, undef $bby, undef $bbw, undef $bbh if /^STARTCHAR /;
+ $encoding = $1 if /^ENCODING (\d+)/;
+ last if defined $encoding && $encoding > $LAST_CHAR;
+ $width = $1 if /^DWIDTH (-?\d+)/;
+ ($bbw, $bbh, $bbx, $bby) = ($1, $2, $3, $4) if /^BBX (-?\d+) (-?\d+) (-?\d+) (-?\d+)/;
+
+ if (/^BITMAP$/) {
+ next if !defined $encoding;
+ $firstchar = $encoding if $firstchar < 0;
+ $encoding_tab[$encoding] = $ofs;
+ $width -= $bbx, $bbx = 0 if $bbx < 0;
+ $width[$encoding] = $width;
+ $maxwidth != 0 and $width != $maxwidth and $proportional = 1;
+ $maxwidth = $width if $width > $maxwidth;
+ $ch_words = int (($width+$IMAGE_BITS-1)/$IMAGE_BITS);
+ $ch_bits = $ch_words*$IMAGE_BITS;
+ for (my $i = 0; $i < $ch_height; $i++) {
+ for (my $k = 0; $k < $ch_words; $k++) {
+ $bm[$i][$k] = 0;
+ }
+ }
+ for (my $i = 0; ; $i++) {
+ $_ = <BDF>;
+ chop;
+ last if /^ENDCHAR$/;
+
+ @hexnibbles = split //,$_;
+ for (my $k=0; $k<$ch_words; $k++) {
+ $ndx = $k*$IMAGE_NIBBLES;
+ $padnibbles = @hexnibbles - $ndx;
+ # if bbx pushes bits into next word
+ # and no more bits from bdf file
+ last if $padnibbles <= 0;
+ $padnibbles = 0 if $padnibbles >= $IMAGE_NIBBLES;
+ $value = hex join '',@hexnibbles[$ndx..($ndx+$IMAGE_NIBBLES-1-$padnibbles)];
+ $value = $value << ($padnibbles*$IMAGE_NIBBLES);
+ $bm[$ch_height - $font_descent - $bby - $bbh + $i][$k] |=
+ $value >> ($bbx);
+ if ($bbx) { # handle overflow into next image_word
+ $bm[$ch_height - $font_descent - $bby - $bbh + $i][$k+1] =
+ ($value << ($IMAGE_BITS - $bbx)) & $IMAGE_MASK;
+ }
+ }
+ }
+
+ # GLYPH PREVIEW
+### printf "\n/* Character %c (0x%02x): ", $encoding, $encoding;
+ printf "\n/* Character (0x%02x): ", $encoding;
+ print "bbw=$bbw, bbh=$bbh, bbx=$bbx, bby=$bby, width=$width */\n";
+
+ # GLYPH DATA
+ if ($IMAGE_VERTICAL) {
+ my $bitstring = "";
+ for (my $k = 0; $k < int(($ch_height + $IMAGE_BITS - 1) / $IMAGE_BITS); $k++) {
+ for (my $x = 0; $x < $width; $x++) {
+ my $v = 0;
+ for (my $y = 0; $y < $IMAGE_BITS && ($y + $k * $IMAGE_BITS < $ch_height); ++$y) {
+ my $bit = ($bm[$k * $IMAGE_BITS + $y][int($x / $IMAGE_BITS)] & (1 << ($IMAGE_BITS - ($x % $IMAGE_BITS) - 1))) ? 1 : 0;
+ $bitstring .= $bit ? '*' : ' ';
+ $v |= $bit << $y;
+ }
+ $ofs++;
+ printf "0x%02x, ", $v;
+ }
+ # Preview
+ printf "/* $bitstring */\n";
+ }
+
+ }
+ else { # IMAGE_HORIZONTAL
+
+ # Preview
+ print " +", ("-" x $ch_bits), "+\n";
+ for (my $i = 0; $i < $ch_height; $i++) {
+ print " |";
+ for (my $k = 0; $k < $ch_words; $k++) {
+ for (my $j = $IMAGE_BITS - 1; $j >= 0; $j--) {
+ print $bm[$i][$k] & (1 << $j) ? "*" : " ";
+ }
+ }
+ print "|\n";
+ }
+ print " +", ("-" x $ch_bits), "+ */\n";
+
+ for (my $i = 0; $i < $ch_height; $i++) {
+ for (my $k=0; $k<$ch_words; $k++) {
+ $ofs++;
+ printf "0x%02x, ", $bm[$i][$k];
+ }
+ printf "\n";
+ }
+ }
+ }
+}
+
+print "};\n\n";
+
+#print STDERR "Maximum character width=$maxwidth\n";
+
+if ($proportional) {
+ print "/* Character->glyph data. */\n";
+ print "static const PROGMEM uint16_t ${font}_offset[] = {\n";
+ for (my $i = $firstchar; $i <= $LAST_CHAR; $i++) {
+ my $char = $i;
+ my $ofs = $encoding_tab[$i];
+ $ofs = $encoding_tab[$default_char], $char = $default_char if !defined $ofs;
+ ### printf " $ofs,\t/* %c (0x%02x) */\n", $char, $i;
+ printf " $ofs,\t/* (0x%02x) */\n", $i;
+ }
+ print "};\n\n";
+
+ print "/* Character width data. */\n";
+ print "static const PROGMEM uint8_t ${font}_width[] = {\n";
+ for (my $i = $firstchar; $i <= $LAST_CHAR; $i++) {
+ my $char = $i;
+ my $width = $width[$i];
+ $width = $width[$default_char], $char = $default_char if !defined $encoding_tab[$i];
+ ### printf " $width,\t/* %c (0x%02x) */\n", $char, $i;
+ printf " $width,\t/* (0x%02x) */\n", $i;
+ }
+ print "};\n\n";
+
+ $font_offset = "${font}_offset";
+ $font_width = "${font}_width";
+} else {
+ $font_offset = "NULL";
+ $font_width = "NULL";
+}
+
+$lastchar = $LAST_CHAR;
+#$size = $lastchar - $firstchar + 1;
+
+print <<EOF
+/* Font structure definition. */
+EXTERN_CONST Font font_${font} =
+{
+ /* .glyph = */ font_${font}_glyphs,
+ /* .name = "$font", */
+ /* .width = */ $maxwidth,
+ /* .height = */ $ch_height,
+ /* .ascent = $font_ascent, */
+ /* .first = */ $firstchar,
+ /* .last = */ $lastchar,
+ /* .offset = */ $font_offset,
+ /* .width = */ $font_width,
+};
+EOF
projects / bertos.git / blobdiff