diff options
Diffstat (limited to 'tools/pbf-gen.rb')
| -rw-r--r-- | tools/pbf-gen.rb | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/tools/pbf-gen.rb b/tools/pbf-gen.rb new file mode 100644 index 0000000..f4c59c8 --- /dev/null +++ b/tools/pbf-gen.rb @@ -0,0 +1,66 @@ +#args: .hex file, .pbf file, hex pitch, char width, char height, hz padding, vt padding +#converts the .hex output of gbdfed into a pbf file +#6x9x0x0 + +bitmaps = {} + +File.readlines(ARGV[0]).map do |l| + bitmaps[l[0..3].to_i 16] = (l[5..-2].to_i(16) + 2**80).to_s(2)[1..-1] +end + +data_area_entries = {} + +bitmaps.each do |cp, bm| + lines = bm.scan /.{#{ARGV[2].to_i}}/ + this_entry = [] + this_byte = 0 + byte_mask = 1 + for y in 0..(ARGV[4].to_i() - 1) do + for x in 0..(ARGV[3].to_i() - 1) do + if lines[y][x] == '1' + this_byte |= byte_mask + end + byte_mask *= 2 + if byte_mask == 256 + byte_mask = 1 + this_entry << this_byte + this_byte = 0 + end + end + end + if byte_mask != 1 + this_entry << this_byte + end + data_area_entries[cp] = this_entry +end + +data_area = [] + +def put_u32(f, n) + f.putc (n % 256) + f.putc ((n / 256) % 256) + f.putc ((n / 65536) % 256) + f.putc ((n / 16777216) % 256) +end + +File.open(ARGV[1], 'wb') do |f| + f.putc ARGV[3].to_i + f.putc ARGV[4].to_i + f.putc ARGV[5].to_i + f.putc ARGV[6].to_i + + for cp in 0..255 do + if data_area_entries.key? cp + put_u32(f, data_area.length) + for b in data_area_entries[cp] do + data_area << b + end + else + put_u32(f, 0) + end + end + + for b in data_area do + f.putc b + end +end
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