81 lines
1.8 KiB
Python
81 lines
1.8 KiB
Python
# SPDX-FileCopyrightText: 2023 Blender Authors
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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# Converts 32x32 XPM images written be the gimp to GL stipples
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# takes XPM files as arguments, prints out C style definitions.
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import sys
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import os
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def main():
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xpm_ls = [f for f in sys.argv[1:] if f.lower().endswith(".xpm")]
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print("Converting: " + " ".join(xpm_ls))
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for xpm in xpm_ls:
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f = open(xpm, "r")
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data = f.read()
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f.close()
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# all after first {
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data = data.split("{", 1)[1]
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# all before first }
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data = data.rsplit("}", 1)[0]
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data = data.replace("\n", "")
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data = data.split(",")
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w, h, c, dummy = map(int, data[0].strip("\"").split())
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if w != 32 or h != 32 or c != 2:
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print("Skipping %r, expected 32x32, monochrome, got %s" %
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(xpm, data[0]))
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continue
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# col_1 = data[1][1]
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col_2 = data[2][1]
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data = [d[1:-1] for d in data[3:]]
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bits = []
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for d in data:
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for i, c in enumerate(d):
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bits.append('01'[(c == col_2)])
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if len(bits) != 1024:
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print("Skipping %r, expected 1024 bits, got %d" %
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(xpm, len(bits)))
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continue
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bits = "".join(bits)
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chars = []
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for i in range(0, len(bits), 8):
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chars.append("0x%.2x" % int(bits[i:i + 8], 2))
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fout = sys.stdout
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var = os.path.basename(xpm)
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var = os.path.splitext(var)[0]
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fout.write("GLubyte stipple_%s[128] {\n\t" % var)
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for i, c in enumerate(chars):
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if i != 127:
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fout.write("%s, " % c)
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else:
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fout.write("%s" % c)
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if not ((i + 1) % 8):
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fout.write("\n\t")
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fout.write("};\n")
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if __name__ == "__main__":
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main()
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