def main():
ilbm = ILBM()
ilbm.ChunkBlackList.append('JUNK')
for path in sys.argv[1:]:
ilbm.load(path)
for chunk in ilbm:
pprint(chunk)
def main():
ilbm = ILBM()
ilbm.ChunkBlackList.append('JUNK')
for path in sys.argv[1:]:
ilbm.load(path)
for chunk in ilbm:
pprint((chunk.name, chunk.data))
def convert(input, output):
im = Image.open(input)
pix = array('B', im.getdata())
pal = im.getpalette()
width, height = im.size
colors = im.getextrema()[1] + 1
depth = int(math.ceil(math.log(colors, 2)))
bmhd = BitMapHeader(width, height, 0, 0, depth, 0, 0, 0, 1, 1, width,
height)
cmap = [Color(*pal[i * 3:(i + 1) * 3]) for i in range(colors)]
body = c2p(pix, width, height, depth)
ilbm = ILBM()
ilbm.append(IffChunk('BMHD', bmhd))
ilbm.append(IffChunk('CMAP', cmap))
ilbm.append(IffChunk('BODY', body))
ilbm.save(output)
def convert(input, output):
im = Image.open(input)
pix = array('B', im.getdata())
pal = im.getpalette()
width, height = im.size
colors = im.getextrema()[1] + 1
depth = int(math.ceil(math.log(colors, 2)))
bmhd = BitMapHeader(width, height, 0, 0, depth,
0, 0, 0,
1, 1, width, height)
cmap = [Color(*pal[i*3:(i+1)*3]) for i in range(colors)]
body = c2p(pix, width, height, depth)
ilbm = ILBM()
ilbm.append(IffChunk('BMHD', bmhd))
ilbm.append(IffChunk('CMAP', cmap))
ilbm.append(IffChunk('BODY', body))
ilbm.save(output)
def main():
parser = argparse.ArgumentParser(
description='Compresses ILBM IFF file with LZO or Deflate algorithm.')
parser.add_argument(
'-m', '--method', type=str, choices=['none', 'lzo', 'deflate'],
default='lzo', help='Compression method to use.')
parser.add_argument(
'-f', '--force', action='store_true',
help='If the output file exists, the tool will overwrite it.')
parser.add_argument(
'input', metavar='INPUT', type=str,
help='Input ILBM IFF file name.')
parser.add_argument(
'output', metavar='OUTPUT', type=str, nargs='?',
help='Output ILBM IFF file name.')
args = parser.parse_args()
if args.output is None:
args.output = args.input
if not os.path.isfile(args.input):
raise SystemExit('File "%s" does not exists!' % args.input)
if os.path.exists(args.output) and not args.force:
raise SystemExit(
'File "%s" already exists (use "-f" to override).' %
args.output)
ilbm = ILBM()
ilbm.ChunkBlackList.append('CRNG')
if ilbm.load(args.input):
bmhd = ilbm.get('BMHD')
body = ilbm.get('BODY')
size = ((bmhd.data.w + 15) & ~15) / 8 * bmhd.data.h * bmhd.data.nPlanes
logging.info(bmhd.data)
logging.info(
'BODY size before compression: %d/%d' % (len(body.data), size))
if bmhd.data.compression in [0, 1, 254, 255]:
body.data = body.data.read()
if bmhd.data.compression == 1:
body.data = UnRLE(body.data)
if bmhd.data.compression == 254:
body.data = zopfli.decompress(body.data, size)
if bmhd.data.compression == 255:
body.data = lzo.decompress(body.data, size)
if args.method == 'deflate':
opts = zopfli.Options()
body.data = zopfli.compress(opts, body.data, len(body.data))
bmhd.data = bmhd.data._replace(compression=254)
if args.method == 'lzo':
body.data = lzo.compress(body.data)
bmhd.data = bmhd.data._replace(compression=255)
if args.method == 'none':
bmhd.data = bmhd.data._replace(compression=0)
logging.info(
'BODY size after compression: %d/%d' % (len(body.data), size))
ilbm.save(args.output)
else:
logging.warning('Unknown compression: %d' % bmhd.data.compression)
def main():
parser = argparse.ArgumentParser(
description='Compresses ILBM IFF file with LZO or Deflate algorithm.')
parser.add_argument('-m',
'--method',
type=str,
choices=['none', 'lzo', 'deflate'],
default='lzo',
help='Compression method to use.')
parser.add_argument(
'-f',
'--force',
action='store_true',
help='If the output file exists, the tool will overwrite it.')
parser.add_argument('input',
metavar='INPUT',
type=str,
help='Input ILBM IFF file name.')
parser.add_argument('output',
metavar='OUTPUT',
type=str,
nargs='?',
help='Output ILBM IFF file name.')
args = parser.parse_args()
if args.output is None:
args.output = args.input
if not os.path.isfile(args.input):
raise SystemExit('File "%s" does not exists!' % args.input)
if os.path.exists(args.output) and not args.force:
raise SystemExit('File "%s" already exists (use "-f" to override).' %
args.output)
ilbm = ILBM()
ilbm.ChunkBlackList.append('CRNG')
if ilbm.load(args.input):
bmhd = ilbm.get('BMHD')
body = ilbm.get('BODY')
size = ((bmhd.data.w + 15) & ~15) / 8 * bmhd.data.h * bmhd.data.nPlanes
payload = body.data.read()
logging.info(bmhd.data)
logging.info('BODY size before compression: %d/%d' %
(len(payload), size))
if bmhd.data.compression in [0, 1, 254, 255]:
if bmhd.data.compression == 1:
payload = UnRLE(payload)
if bmhd.data.compression == 254:
payload = zopfli.decompress(payload, size)
if bmhd.data.compression == 255:
payload = lzo.decompress(payload, size)
compression = 0
if args.method == 'deflate':
opts = zopfli.Options()
payload = zopfli.compress(opts, payload, len(payload))
compression = 254
if args.method == 'lzo':
payload = lzo.compress(payload)
compression = 255
if args.method == 'none':
compression = 0
body.data = payload
bmhd.data = bmhd.data._replace(compression=compression)
logging.info('BODY size after compression: %d/%d' %
(len(body.data), size))
ilbm.save(args.output)
else:
logging.warning('Unknown compression: %d' % bmhd.data.compression)
