mirror of
git://projects.qi-hardware.com/setfont2.git
synced 2024-12-12 19:36:15 +02:00
88 lines
2.1 KiB
Python
88 lines
2.1 KiB
Python
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#!/usr/bin/env python2
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# Converts PNG to Linux font character array.
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import sys
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# Python Imaging Library
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# http://www.pythonware.com/products/pil/
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import Image
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def getCellSize(image):
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x, y = image.size
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width = (x / 32) - 1
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height = (y / 8) - 1
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assert 32 * (width + 1) + 1 == x, x
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assert 8 * (height + 1) + 1 == y, y
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return width, height
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def createData(width, height, image):
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data = []
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# Scan characters.
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for c in xrange(256):
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row, col = divmod(c, 32)
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y = 1 + row * (height + 1)
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for i in xrange(height):
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x = 1 + col * (width + 1)
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pat = 0
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mask = 128
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for bit in xrange(width):
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if image.getpixel((x, y)):
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pat |= mask
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mask >>= 1
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x += 1
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y += 1
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data.append(pat)
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return data
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if len(sys.argv) != 2:
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print >>sys.stderr, 'Usage: python png2font.py <image_file>'
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sys.exit(2)
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else:
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fileName = sys.argv[1]
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assert fileName.endswith('.png')
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outFileName = fileName[ : -4] + '.c'
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image = Image.open(fileName)
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width, height = getCellSize(image)
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data = createData(width, height, image)
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arrayName = 'fontdata_%dx%d' % (width, height)
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out = open(outFileName, 'w')
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try:
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print >>out, '#include <linux/font.h>'
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print >>out
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# print >>out, '#define FONTDATAMAX (%d*256)' % height
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# print >>out
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print >>out, 'static const unsigned char %s[] = {' % arrayName
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print >>out
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for c in xrange(256):
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if c < 32:
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cs = '^%s' % chr(c + 64)
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elif c >= 128:
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cs = '\\%o' % c
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else:
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cs = chr(c)
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print >>out, "\t/* %d 0x%02X '%s' */" % (c, c, cs)
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for i in xrange(c * height, (c + 1) * height):
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d = data[i]
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ds = ''.join(
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str((d >> bit) & 1)
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for bit in reversed(xrange(8))
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)
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print >>out, '\t0x%02X, /* %s */' % (d, ds)
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print >>out
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print >>out, '};'
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print >>out
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print >>out, 'const struct font_desc font_%dx%d = {' \
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% (width, height)
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print >>out, '\t.idx\t= FONT%dx%d_IDX,' % (width, height)
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print >>out, '\t.name\t= "%dx%d",' % (width, height)
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print >>out, '\t.width\t= %d,' % width
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print >>out, '\t.height\t= %d,' % height
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print >>out, '\t.data\t= %s,' % arrayName
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print >>out, '\t.pref\t= 0,'
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print >>out, '};'
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finally:
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out.close()
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