From 2682bc5d1d864341aaeb42a449db73c3ecd16d70 Mon Sep 17 00:00:00 2001 From: "Juan J. Martinez" Date: Wed, 30 Dec 2020 19:07:31 +0000 Subject: Initial import --- tools/png2sprites.py | 138 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 138 insertions(+) create mode 100755 tools/png2sprites.py (limited to 'tools/png2sprites.py') diff --git a/tools/png2sprites.py b/tools/png2sprites.py new file mode 100755 index 0000000..a554433 --- /dev/null +++ b/tools/png2sprites.py @@ -0,0 +1,138 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2019 by Juan J. Martinez +# +# 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 ", + ) + + 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() -- cgit v1.2.3