portapack-mayhem/firmware/tools/make_bitmap.py
2016-12-24 16:55:06 +01:00

72 lines
1.7 KiB
Python

#!/usr/bin/env python
# Copyright (C) 2016 Furrtek
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
import sys
import struct
from PIL import Image
usage_message = """
1BPP PortaPack bitmap generator
Usage: <command> <name> <filename>
"""
if len(sys.argv) < 3:
print(usage_message)
sys.exit(-1)
c = 0
data = 0
im = Image.open(sys.argv[2])
rgb_im = im.convert('RGBA')
if rgb_im.size[0] % 8 or rgb_im.size[1] % 8:
print('Bitmap size isn\'t a multiple of 8')
sys.exit(-1)
name = sys.argv[1]
print "static constexpr uint8_t bitmap_" + name + "_data[] = {"
print ' ', # Tab
for i in range(rgb_im.size[0]):
for j in range(rgb_im.size[1]):
r, g, b, a = rgb_im.getpixel((j, i))
data >>= 1
if r > 127 and g > 127 and b > 127 and a > 127:
data += 128
if j % 8 == 7:
print "0x%0.2X," % data,
data = 0
print ''
if i < rgb_im.size[0] - 1:
print ' ', # Tab
print "};"
print ''
print "static constexpr Bitmap bitmap_" + name + " {"
print " { " + str(rgb_im.size[0]) + ", " + str(rgb_im.size[1]) + " }, bitmap_" + name+ "_data"
print "};"