def generate(height, codepoints, font_file_path, output_file_name, packed, code, smoke):
font = Font(font_file_path, height)
if smoke:
glyphs = [chr(x) for x in codepoints]
f = sys.stdout.buffer
if output_file_name is not None:
f = open(output_file_name, 'wt')
for cur_glyph in glyphs:
ch = font.render_character(cur_glyph)
f.write(cur_glyph + '\n')
f.write(repr(ch))
f.write('\n\n')
f.close()
return
ili9341_t3_font = OrderedDict()
ili9341_t3_font['index'] = 0
ili9341_t3_font['unicode'] = 0
ili9341_t3_font['data'] = 0
ili9341_t3_font['version'] = 1
ili9341_t3_font['reserved'] = 0
ili9341_t3_font['index1_first'] = (len(codepoints) & 0xff00) >> 8
ili9341_t3_font['index1_last'] = len(codepoints) & 0xff
ili9341_t3_font['index2_first'] = 0
ili9341_t3_font['index2_last'] = 0
ili9341_t3_font['bits_index'] = 0
ili9341_t3_font['bits_width'] = 0
ili9341_t3_font['bits_height'] = 0
ili9341_t3_font['bits_xoffset'] = 0
ili9341_t3_font['bits_yoffset'] = 0
ili9341_t3_font['bits_delta'] = 0
ili9341_t3_font['line_space'] = font.height
e_cap = font.glyph_for_character('E')
ili9341_t3_font['cap_height'] = e_cap.height - e_cap.descent
max_width = 1
max_height = 1
max_xoffset = 1
max_yoffset = 1
max_delta = 1
glyph_data = dict()
for codepoint in codepoints:
cur_glyph = chr(codepoint)
glyph_header = build_glyph(cur_glyph, font, glyph_data)
max_width = max(max_width, glyph_header['width'])
max_height = max(max_height, glyph_header['height'])
max_xoffset = max(abs(max_xoffset), abs(glyph_header['xoffset']))
max_yoffset = max(abs(max_yoffset), abs(glyph_header['yoffset']))
max_delta = max(max_delta, glyph_header['delta'])
ili9341_t3_font['bits_width'] = int(math.floor(math.log(max_width, 2))) + 1
ili9341_t3_font['bits_height'] = int(math.floor(math.log(max_height, 2))) + 1
ili9341_t3_font['bits_xoffset'] = int(math.floor(math.log(max_xoffset, 2))) + 2
ili9341_t3_font['bits_yoffset'] = int(math.floor(math.log(max_yoffset, 2))) + 2
ili9341_t3_font['bits_delta'] = int(math.floor(math.log(max_delta, 2))) + 1
output_data = bytearray()
index = list()
total_size = 0
for codepoint in codepoints:
ch = chr(codepoint)
index.append(total_size)
glyph = glyph_data[ch]
glyph_bytes = pack_glyph(glyph, ili9341_t3_font)
output_data.extend(glyph_bytes)
total_size += len(glyph_bytes)
ili9341_t3_font['bits_index'] = int(math.floor(math.log(total_size, 2))) + 1
index_bits = BitString()
for idx in index:
index_bits.append(Bits(uint=idx, length=ili9341_t3_font['bits_index']))
codepoint_table = BitString()
for codepoint in codepoints:
codepoint_table.append(Bits(uint=codepoint, length=21))
if packed:
f = sys.stdout.buffer
if output_file_name is not None:
f = open(output_file_name, 'wb')
f.write(struct.pack('<3I14Bxx', *tuple(ili9341_t3_font.values())))
index_bits.tofile(f)
codepoint_table.tofile(f)
f.write(output_data)
f.close()
if code:
f = sys.stdout.buffer
if output_file_name is not None:
f = open(output_file_name, 'wb')
variable_name = os.path.splitext(os.path.basename(font_file_path))[0] + '_' + str(height)
c = io.StringIO()
c.write('// extern const ILI9341_t3_font_t {};\n\n'.format(variable_name))
c.write('static const unsigned char {}_data[] = {{\n'.format(variable_name))
data_byte_array = ['0x' + binascii.hexlify(bytes([x])).decode() for x in output_data]
for i in range(0, len(data_byte_array), 10):
c.write(','.join(data_byte_array[i:i + 10]) + ',\n')
c.write('};\n')
c.write('/* font data size: {} bytes */\n\n'.format(len(data_byte_array)))
c.write('static const unsigned char {}_index[] = {{\n'.format(variable_name))
index_byte_array = ['0x' + binascii.hexlify(bytes([x])).decode() for x in index_bits.tobytes()]
for i in range(0, len(index_byte_array), 10):
c.write(','.join(index_byte_array[i:i + 10]) + ',\n')
c.write('};\n')
c.write('/* font index size: {} bytes */\n\n'.format(len(index_byte_array)))
c.write('static const unsigned char {}_codepoints[] = {{\n'.format(variable_name))
codepoint_byte_array = ['0x' + binascii.hexlify(bytes([x])).decode() for x in codepoint_table.tobytes()]
for i in range(0, len(codepoint_byte_array), 10):
c.write(','.join(codepoint_byte_array[i:i + 10]) + ',\n')
c.write('};\n')
c.write('/* Unicode codepoint table size: {} bytes */\n\n'.format(len(codepoint_byte_array)))
c.write('const ILI9341_t3_font_t {} = {{\n'.format(variable_name))
c.write(' {}_index,\n'.format(variable_name))
c.write(' {}_codepoints,\n'.format(variable_name))
c.write(' {}_data,\n'.format(variable_name))
c.write(' {},\n'.format(ili9341_t3_font['version']))
c.write(' {},\n'.format(ili9341_t3_font['reserved']))
c.write(' {},\n'.format(ili9341_t3_font['index1_first']))
c.write(' {},\n'.format(ili9341_t3_font['index1_last']))
c.write(' {},\n'.format(ili9341_t3_font['index2_first']))
c.write(' {},\n'.format(ili9341_t3_font['index2_last']))
c.write(' {},\n'.format(ili9341_t3_font['bits_index']))
c.write(' {},\n'.format(ili9341_t3_font['bits_width']))
c.write(' {},\n'.format(ili9341_t3_font['bits_height']))
c.write(' {},\n'.format(ili9341_t3_font['bits_xoffset']))
c.write(' {},\n'.format(ili9341_t3_font['bits_yoffset']))
c.write(' {},\n'.format(ili9341_t3_font['bits_delta']))
c.write(' {},\n'.format(ili9341_t3_font['line_space']))
c.write(' {}\n'.format(ili9341_t3_font['cap_height']))
c.write('};\n')
f.write(c.getvalue().encode('ascii'))
