font_packer.py 文件源码

def pack_glyph(glyph, ili9341_t3_font):
    glyph_bits = BitString()
    header = glyph['header']
    glyph_bits.append(Bits(uint=header['encoding'], length=3))
    glyph_bits.append(Bits(uint=header['width'], length=ili9341_t3_font['bits_width']))
    glyph_bits.append(Bits(uint=header['height'], length=ili9341_t3_font['bits_height']))
    glyph_bits.append(Bits(int=header['xoffset'], length=ili9341_t3_font['bits_xoffset']))
    glyph_bits.append(Bits(int=header['yoffset'], length=ili9341_t3_font['bits_yoffset']))
    glyph_bits.append(Bits(uint=header['delta'], length=ili9341_t3_font['bits_delta']))
    for row in glyph['data']:
        if row['repeat'] == 0:
            glyph_bits.append(Bits(bool=False))
        else:
            glyph_bits.append(Bits(bool=True))
            glyph_bits.append(Bits(uint=row['repeat'] - 1, length=3))

        for bit in row['bits']:
            glyph_bits.append(Bits(bool=bit == 1))
    glyph_bytes = glyph_bits.tobytes()
    return glyph_bytes