#!/usr/bin/env python3 # # Copyright (C) 2019 by Juan J. Martinez <jjm@usebox.net> # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN # THE SOFTWARE. # from argparse import ArgumentParser from PIL import Image __version__ = "1.0" DEF_W = 16 DEF_H = 16 TRANS = (28, 28, 28) def to_hex_list_str(src): out = "" for i in range(0, len(src), 8): out += ', '.join(["0x%02x" % b for b in src[i:i + 8]]) + ',\n' return out def to_hex_list_str_asm(src): out = "" for i in range(0, len(src), 8): out += '\tdb ' + ', '.join(["#%02x" % b for b in src[i:i + 8]]) out += '\n' return out def main(): parser = ArgumentParser(description="PNG to MSX spites", epilog="Copyright (C) 2019 Juan J Martinez <jjm@usebox.net>", ) parser.add_argument( "--version", action="version", version="%(prog)s " + __version__) parser.add_argument("-i", "--id", dest="id", default="sprites", type=str, help="variable name (default: sprites)") parser.add_argument("-a", "--asm", dest="asm", action="store_true", help="ASM output (default: C header)") parser.add_argument("image", help="image to convert") args = parser.parse_args() try: image = Image.open(args.image) except IOError: parser.error("failed to open the image") if image.mode != "RGB": parser.error("not a RGB image") (w, h) = image.size if w % DEF_W or h % DEF_H: parser.error("%s size is not multiple of sprite size (%s, %s)" % (args.image, DEF_W, DEF_H)) data = image.getdata() out = [] for y in range(0, h, DEF_H): for x in range(0, w, DEF_W): tile = [data[x + i + ((y + j) * w)] for j in range(DEF_H) for i in range(DEF_W)] cols = set([c for c in tile if c != TRANS]) if not cols: continue for c in cols: frame = [] for i, j in ((0, 0), (0, 8), (8, 0), (8, 8)): for m in range(8): byte = 0 p = 7 for k in range(8): b = 1 if tile[i + (j + m) * 16 + k] == c else 0 byte |= b << p p -= 1 frame.append(byte) out.append(frame) if args.asm: print("%s_LEN = %d" % (args.id.upper(), len(out) * 32)) print("%s_FRAMES = %d\n" % (args.id.upper(), len(out))) print("%s:\n" % args.id) for i, frame in enumerate(out): print("%s_frame%d:" % (args.id, i)) print(to_hex_list_str_asm(frame)) else: print("#ifndef _%s_H" % args.id.upper()) print("#define _%s_H\n" % args.id.upper()) print("#define %s_LEN %d\n" % (args.id.upper(), len(out) * 32)) print("#define %s_FRAMES %d\n" % (args.id.upper(), len(out))) data_out = "" for i, frame in enumerate(out): data_out += '{\n' + to_hex_list_str(frame) + '}' if i + 1 < len(out): data_out += ',\n' print("#ifdef LOCAL") print("const unsigned char %s[%d][%d] = {\n%s\n};\n" % ( args.id, len(out), len(out[0]), data_out)) print("#else\n") print("extern const unsigned char %s[%d][%d];" % (args.id, len(out), len(out[0]))) print("#endif // LOCAL\n") print("#endif // _%s_H\n" % args.id.upper()) if __name__ == "__main__": main()