Subversion Repositories vg_z80_sbc

#!/usr/bin/ruby

# Translate PSF (PostScript Font) files to XilinX COE file format

# for embbed a console font into a ROM (Xilinx read-only BRAM)

#

# 2007 Javier Valcarce García, 

# $Id: psf2coe.rb,v 1.1 2008-12-01 02:00:10 hharte Exp $

# Read header and retrieve font information

# Read the data

# Write the COE file

$i_filename = ARGV[0]

$o_filename = "output.coe"

if ARGV.length == 0

  puts "Usage: psf2coe file.psf"

  exit

end

str = IO.read($i_filename)

# Header

magic = str[0..1].unpack('H4')[0]

fmode = str[2].to_i

heigh = str[3].to_i

width = 8

pdata = str[4..str.length]

# Check magic numbers hdr[0]

if magic == "3604"

  puts "Format : PSF1"

  puts "Mode   : " + fmode.to_s

  puts "Width  : 8 pixels"

  puts "Heigh  : " + heigh.to_s + " pixels"

else

  puts "I only understand PSF1 format file. Sorry"

  exit

end

# Write COE file

File.open($o_filename, "w") do |file|

  file.puts <

; DO NOT EDIT THIS FILE BY HAND

; This file has been generated automaticaly by psf2coe utility.

; Original file: #{$i_filename}

  memory_initialization_radix  = 16;

  memory_initialization_vector =

END_OF_STRING

  # there is exactly 256 caracters in the file

  (256 * heigh).times do |i|

    file.puts sprintf("%02X\n", pdata[i])

  end

  file.puts "; END"

end

puts "DONE."