longan-movie-player/movies/png2rgb565.py

32 lines
699 B
Python
Executable File

#! /usr/bin/env python
# -*- coding: utf-8 -*-
# Based on https://gist.github.com/hidsh/7065820
from PIL import Image
import struct, os, sys
def write_bin(f, pixel_list):
for pix in pixel_list:
# RGB565: RRRR RGGG GGGB BBBB
r = (pix[0] >> 3) & 0x1F
g = (pix[1] >> 2) & 0x3F
b = (pix[2] >> 3) & 0x1F
# big endian u16
f.write(struct.pack('>H', (r << 11) + (g << 5) + b))
args = sys.argv
if len(args) != 2:
print('./png2rgb565.py HOGE.png')
exit(1)
in_path = args[1]
body, _ = os.path.splitext(in_path)
out_path = body + '.rgb'
img = Image.open(in_path).convert('RGB')
with open(out_path, 'wb') as f:
write_bin(f, img.getdata())