#!/usr/bin/env python3

import optparse, sys



def main(argv):

    p = optparse.OptionParser()

    p.description = ("When run from the toplevel A5 folder, this will "

        "re-create the src/pixel_tables.inc.""")

    p.parse_args()



    with open("src/pixel_tables.inc", "w") as f:

        f.write("""// Warning: This file was created by make_pixel_tables.py - do not edit.



""");



        f.write("float _al_u8_to_float[] = {\n")

        for i in range(256):

            f.write(f"   {i / 255.0},\n")

        f.write("};\n\n")



        f.write("int _al_rgb_scale_1[] = {\n")

        for i in range(2):

            f.write(f"   {i * 255 // 1},\n")

        f.write("};\n\n")



        f.write("int _al_rgb_scale_4[] = {\n")

        for i in range(16):

            f.write(f"   {i * 255 // 15},\n")

        f.write("};\n\n")



        f.write("int _al_rgb_scale_5[] = {\n")

        for i in range(32):

            f.write(f"   {i * 255 // 31},\n")

        f.write("};\n\n")



        f.write("int _al_rgb_scale_6[] = {\n")

        for i in range(64):

            f.write(f"   {i * 255 // 63},\n")

        f.write("};\n\n")



        f.write("""// Warning: This file was created by make_pixel_tables.py - do not edit.

""");



if __name__ == "__main__":

    main(sys.argv)