108 lines
4.0 KiB
Python
108 lines
4.0 KiB
Python
#
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# FontGen
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# Author: Jared Sanson (jared@jared.geek.nz)
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#
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# Requires Python Imaging Library (PIL)
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#
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# To add a new font, create a new FONT dictionary and tweak the parameters
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# until the output .png looks correct.
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# Monospaced fonts work best, but some variable-width ones work well too.
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#
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# Once the png file looks good, you can simply include the .h file in your
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# project and use it. (how you use it is up to you)
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#
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from PIL import Image, ImageFont, ImageDraw
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import os.path
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# MONOSPACE:
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#FONT = {'fname': r'pzim3x5.ttf', 'size': 9, 'yoff':1, 'w': 3, 'h': 8}
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#FONT = {'fname': r'5x5.ttf', 'size': 10, 'yoff':-2, 'w': 6, 'h': 8}
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#FONT = {'fname': r'BMSPA.ttf', 'size': 9, 'yoff':0, 'w': 8, 'h': 8} #NOTE: add .upper() because lower characters are broken
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#FONT = {'fname': r'BMplain.ttf', 'size': 7, 'yoff':0, 'w': 6, 'h': 8}
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#FONT = {'fname': r'bubblesstandard.ttf', 'size': 15, 'yoff':-1, 'w': 7, 'h': 8}
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#FONT = {'fname': r'7linedigital.ttf', 'size': 8, 'yoff':0, 'w': 4, 'h': 8} # 7-seg. NOTE: can't display certain letters like 'M'
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#FONT = {'fname': r'HUNTER.ttf', 'size': 9, 'yoff':-1, 'w': 8, 'h': 8}
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#FONT = {'fname': r'm38.ttf', 'size': 8, 'yoff':-0, 'w': 8, 'h': 8}
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#FONT = {'fname': r'formplex12.ttf', 'size': 11, 'yoff':0, 'w': 8, 'h': 8}
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#FONT = {'fname': r'sloth.ttf', 'size': 15, 'yoff':-2, 'w': 6, 'h': 8}
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# VARIABLE-WIDTH:
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#FONT = {'fname': r'SUPERDIG.ttf', 'size': 9, 'yoff':-1, 'w': 6, 'h': 8} # Missing some symbols
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#FONT = {'fname': r'tama_mini02.TTF', 'size': 11, 'yoff': -2, 'w': 5, 'h': 8}
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#FONT = {'fname': r'homespun.ttf', 'size': 9, 'yoff':-1, 'w': 7, 'h': 8} # Non-monospaced
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#FONT = {'fname': r'zxpix.ttf', 'size': 10, 'yoff':-2, 'w': 6, 'h': 8}
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#FONT = {'fname': r'Minimum.ttf', 'size': 16, 'yoff':-8, 'w': 6, 'h': 8}
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FONT = {'fname': r'Minimum+1.ttf', 'size': 16, 'yoff':-8, 'w': 7, 'h': 8}
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#FONT = {'fname': r'HISKYF21.ttf', 'size': 9, 'yoff':0, 'w': 6, 'h': 8}
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#FONT = {'fname': r'renew.ttf', 'size': 8, 'yoff':-2, 'w': 7, 'h': 8}
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#FONT = {'fname': r'acme_5_outlines.ttf', 'size': 8, 'yoff':-5, 'w': 6, 'h': 8}
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#FONT = {'fname': r'haiku.ttf', 'size': 11, 'yoff':-2, 'w': 6, 'h': 8}
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#FONT = {'fname': r'aztech.ttf', 'size': 16, 'yoff':-1, 'w': 6, 'h': 8}
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#FONT = {'fname': r'Commo-Monospaced.otf', 'size': 8, 'yoff':-6, 'w': 8, 'h': 8}
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#FONT = {'fname': r'crackers.ttf', 'size': 21, 'yoff':-4, 'w': 6, 'h': 8}
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#FONT = {'fname': r'Blokus.otf', 'size': 9, 'yoff':-2, 'w': 6, 'h': 8}
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#TODO: Support variable-width character fonts
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FONT_FILE = FONT['fname']
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FONT_SIZE = FONT['size']
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FONT_Y_OFFSET = FONT.get('yoff', 0)
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CHAR_WIDTH = FONT.get('w', 5)
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CHAR_HEIGHT = FONT.get('h', 8)
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FONT_BEGIN = ' '
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FONT_END = '~'
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#FONTSTR = ''.join(chr(x).upper() for x in range(ord(FONT_BEGIN), ord(FONT_END)+1))
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FONTSTR = ''.join(chr(x) for x in range(ord(FONT_BEGIN), ord(FONT_END)+1))
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OUTPUT_NAME = os.path.splitext(FONT_FILE)[0] + '_font'
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OUTPUT_PNG = OUTPUT_NAME + '.png'
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OUTPUT_H = OUTPUT_NAME + '.h'
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GLYPH_WIDTH = CHAR_WIDTH + 1
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WIDTH = GLYPH_WIDTH * len(FONTSTR)
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HEIGHT = CHAR_HEIGHT
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img = Image.new("RGBA", (WIDTH, HEIGHT), (255,255,255))
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#fnt = ImageFont.load_default()
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fnt = ImageFont.truetype(FONT_FILE, FONT_SIZE)
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drw = ImageDraw.Draw(img)
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#drw.fontmode = 1
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for i in range(len(FONTSTR)):
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drw.text((i*GLYPH_WIDTH,FONT_Y_OFFSET), FONTSTR[i], (0,0,0), font=fnt)
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img.save(OUTPUT_PNG)
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#### Convert to C-header format
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f = open(OUTPUT_H, 'w')
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num_chars = len(FONTSTR)
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f.write('const unsigned char font[%d][%d] = {\n' % (num_chars+1, CHAR_WIDTH))
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chars = []
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for i in range(num_chars):
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ints = []
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for j in range(CHAR_WIDTH):
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x = i*GLYPH_WIDTH + j
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val = 0
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for y in range(CHAR_HEIGHT):
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rgb = img.getpixel((x,y))
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val = (val >> 1) | (0x80 if rgb[0] == 0 else 0)
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ints.append('0x%.2x' % (val))
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c = FONTSTR[i]
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if c == '\\': c = '"\\"' # bugfix
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f.write('\t{%s}, // %s\n' % (','.join(ints), c))
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f.write('\t{%s}\n' % (','.join(['0x00']*CHAR_WIDTH)))
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f.write('};\n\n')
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f.write('#define FONT_NAME "%s"\n' % OUTPUT_NAME)
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f.close()
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