c2379b9c31
* font/manager.c (grub_font_get_glyph): Removed font fixup from
here...
* util/unifont2pff.rb: ... and moved it to here. Improved argument
parsing to support both hex and dec ranges. If filename was missing
show usage information.
98 lines
2.1 KiB
Ruby
98 lines
2.1 KiB
Ruby
#! /usr/bin/ruby -w
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#
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# Copyright (C) 2003 Free Software Foundation, Inc.
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#
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# This unifont2pff.rb is free software; the author
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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# PARTICULAR PURPOSE.
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# The magic number of the font file.
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MAGIC = "PPF\x7f"
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def usage(status = 0)
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puts "Usage: ruby unifont2pff.rb [RANGE ...] FILE"
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exit(status)
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end
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if ARGV.length == 0
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usage(1)
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end
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file = ARGV.pop
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ranges = []
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ARGV.each do |range|
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if /\A0x([0-9a-fA-F]+)[:-]0x([0-9a-fA-F]+)\z/ =~ range
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ranges << [$1.hex, $2.hex]
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elsif /\A0x([0-9a-fA-F]+)\z/ =~ range
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ranges << [$1.hex, $1.hex]
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elsif /\A([0-9]+)[:-]([0-9]+)\z/ =~ range
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ranges << [$1.to_i, $2.to_i]
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elsif /\A([0-9]+)\z/ =~ range
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ranges << [$1.to_i, $1.to_i]
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else
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usage(1)
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end
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end
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def ranges.contain?(code)
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if self.empty?
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true
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else
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self.each do |r|
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return true if r[0] <= code and r[1] >= code
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end
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false
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end
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end
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fonts = []
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IO.foreach(file) do |line|
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if /^([0-9A-F]+):([0-9A-F]+)$/ =~ line
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code = $1.hex
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next unless ranges.contain?(code)
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bitmap = $2
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if bitmap.size != 32 and bitmap.size != 64
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raise "invalid bitmap size: #{bitmap}"
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end
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# Fix byte ordering
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w = (bitmap.size / 32)
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temp = Array.new
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for y in 0...16
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for x in 0...w
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temp[(y * w + x) * 2 + 0] = bitmap[(x * 16 + y) * 2 + 0].chr
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temp[(y * w + x) * 2 + 1] = bitmap[(x * 16 + y) * 2 + 1].chr
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end
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end
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bitmap = temp.to_s
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fonts << [code, bitmap]
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else
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raise "invalid line format: #{line}"
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end
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end
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fonts.sort! {|a,b| a[0] <=> b[0]}
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# Output the result.
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print MAGIC
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print [fonts.size].pack('V')
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offset = 8 + fonts.size * 8
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fonts.each do |f|
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print [f[0]].pack('V')
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print [offset].pack('V')
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offset += 4 + 16 * f[1].size / 32
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end
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fonts.each do |f|
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print [f[1].size / 32].pack('V')
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print f[1].scan(/../).collect {|a| a.hex}.pack('C*')
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end
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