PicoSystem Sprite Converter

ps-convert.py

#!/usr/bin/env python3

"""
ps-convert 1.0.0
================

PicoSystem Sprite Converter

@authors        Dan Malec, modified and named by Tony Smith
@copyright      2021
@licence        MIT

@requirements   PIL
"""

from PIL import Image
import sys

try:
    file_name = sys.argv[1]
except IndexError:
    print("Usage:")
    print(f"  {sys.argv[0]} <file_name>")
    sys.exit()

image = Image.open(file_name)
pixel_width  = image.size[0]
pixel_height = image.size[1]

digits = 0
for row in range(pixel_height):
    for col in range(pixel_width):
        r, g, b, a = image.getpixel((col, row))

        scaled_r = int(float(r) / 255.0 * 15.0)
        scaled_g = int(float(g) / 255.0 * 15.0)
        scaled_b = int(float(b) / 255.0 * 15.0)
        scaled_a = int(float(a) / 255.0 * 15.0)

        pixel = (scaled_g << 12) | (scaled_b << 8) | (scaled_a << 4) | scaled_r

        print(f"0x{pixel:04X},", end="")
        digits += 1
        if digits >= 32:
            print("")
            digits = 0
        else:
            print(" ", end="")
print()