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# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
# <pep8-80 compliant>
# Converts 32x32 XPM images written be the gimp to GL stipples
# takes xpm files as arguments, prints out C style definitions.
import sys
import os
def main():
xpm_ls = [f for f in sys.argv[1:] if f.lower().endswith(".xpm")]
print("Converting: " + " ".join(xpm_ls))
for xpm in xpm_ls:
f = open(xpm, "r")
data = f.read()
f.close()
# all after first {
data = data.split("{", 1)[1]
# all before first }
data = data.rsplit("}", 1)[0]
data = data.replace("\n", "")
data = data.split(",")
w, h, c, dummy = map(int, data[0].strip("\"").split())
if w != 32 or h != 32 or c != 2:
print("Skipping %r, expected 32x32, monochrome, got %s" %
(xpm, data[0]))
continue
# col_1 = data[1][1]
col_2 = data[2][1]
data = [d[1:-1] for d in data[3:]]
bits = []
for d in data:
for i, c in enumerate(d):
bits.append('01'[(c == col_2)])
if len(bits) != 1024:
print("Skipping %r, expected 1024 bits, got %d" %
(xpm, len(bits)))
continue
bits = "".join(bits)
chars = []
for i in range(0, len(bits), 8):
chars.append("0x%.2x" % int(bits[i:i + 8], 2))
fout = sys.stdout
var = os.path.basename(xpm)
var = os.path.splitext(var)[0]
fout.write("GLubyte stipple_%s[128] {\n\t" % var)
for i, c in enumerate(chars):
if i != 127:
fout.write("%s, " % c)
else:
fout.write("%s" % c)
if not ((i + 1) % 8):
fout.write("\n\t")
fout.write("};\n")
if __name__ == "__main__":
main()
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