diff options
Diffstat (limited to 'tools')
| -rwxr-xr-x | tools/compile-unifont.py | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/tools/compile-unifont.py b/tools/compile-unifont.py new file mode 100755 index 0000000000..7004b946d2 --- /dev/null +++ b/tools/compile-unifont.py @@ -0,0 +1,116 @@ +# -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */ +# +# This file is part of systemd. +# +# Copyright 2013-2014 David Herrmann <dh.herrmann@gmail.com> +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. + +# +# Parse a unifont.hex file and produce a compressed binary-format. +# + +from __future__ import print_function +import re +import sys +import fileinput +import struct + +# +# Write "bits" array as binary output. +# + +def write_bin_entry(entry): + l = len(entry) + if l != 32 and l != 64: + entry = "0" * 64 + l = 0 + elif l < 64: + entry += "0" * (64 - l) + + sys.stdout.buffer.write(struct.pack('B', int(l / 32))) # width + sys.stdout.buffer.write(struct.pack('B', 0)) # padding + sys.stdout.buffer.write(struct.pack('H', 0)) # padding + sys.stdout.buffer.write(struct.pack('I', 0)) # padding + + i = 0 + for j in range(0, 16): + for k in range(0, 2): + if l <= k * 16 * 2: + c = 0 + else: + c = int(entry[i:i+2], 16) + i += 2 + + sys.stdout.buffer.write(struct.pack('B', c)) + +def write_bin(bits): + sys.stdout.buffer.write(struct.pack('B', 0x44)) # ASCII: 'D' + sys.stdout.buffer.write(struct.pack('B', 0x56)) # ASCII: 'V' + sys.stdout.buffer.write(struct.pack('B', 0x44)) # ASCII: 'D' + sys.stdout.buffer.write(struct.pack('B', 0x48)) # ASCII: 'H' + sys.stdout.buffer.write(struct.pack('B', 0x52)) # ASCII: 'R' + sys.stdout.buffer.write(struct.pack('B', 0x4d)) # ASCII: 'M' + sys.stdout.buffer.write(struct.pack('B', 0x55)) # ASCII: 'U' + sys.stdout.buffer.write(struct.pack('B', 0x46)) # ASCII: 'F' + sys.stdout.buffer.write(struct.pack('<I', 0)) # compatible-flags + sys.stdout.buffer.write(struct.pack('<I', 0)) # incompatible-flags + sys.stdout.buffer.write(struct.pack('<I', 32)) # header-size + sys.stdout.buffer.write(struct.pack('<H', 8)) # glyph-header-size + sys.stdout.buffer.write(struct.pack('<H', 2)) # glyph-stride + sys.stdout.buffer.write(struct.pack('<Q', 32)) # glyph-body-size + + # write glyphs + for idx in range(len(bits)): + write_bin_entry(bits[idx]) + +# +# Parse hex file into "bits" array +# + +def parse_hex_line(bits, line): + m = re.match(r"^([0-9A-Fa-f]+):([0-9A-Fa-f]+)$", line) + if m == None: + return + + idx = int(m.group(1), 16) + val = m.group(2) + + # insert skipped lines + for i in range(len(bits), idx): + bits.append("") + + bits.insert(idx, val) + +def parse_hex(): + bits = [] + + for line in sys.stdin: + if not line: + continue + if line.startswith("#"): + continue + + parse_hex_line(bits, line) + + return bits + +# +# In normal mode we simply read line by line from standard-input and write the +# binary-file to standard-output. +# + +if __name__ == "__main__": + bits = parse_hex() + write_bin(bits) |