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)
except ValueError:
continue
mime_type = l[:last_tab].strip()
for extension in l[last_tab:].split():
if not extension in known_exts:
known_exts.add(extension)
types.append((mime_type, extension))
out = b''
entries = 0
for typ, ext in sorted(types, key=itemgetter(1)):
entries += 1
out += pack_string(ext)
out += pack_string(typ)
compressed_out = zlib.compress(out, 9)
print('#ifndef __MIME_TYPES_H__')
print('#define __MIME_TYPES_H__')
print('/* Auto generated from parse-mime-types.py, do not modify */')
print('#define MIME_UNCOMPRESSED_LEN %d' % len(out))
print('#define MIME_COMPRESSED_LEN %d' % len(compressed_out))
print('#define MIME_ENTRIES %d' % entries)
print('struct mime_entry {')
print(' const char *extension;')
print(' const char *type;')
print('};')
print('static const unsigned char mime_entries_compressed[] = {')
types.append((mime_type, extension))
types.sort(key = itemgetter(1))
max_ext_len = max(len(ext) for typ, ext in types)
max_typ_len = max(len(typ) for typ, ext in types)
total_len = len(types) * (max_ext_len + 1 + max_typ_len + 1)
out = b''
entries = 0
for typ, ext in types:
entries += 1
out += pack_string(ext)
out += pack_string(typ)
compressed_out = zlib.compress(out, 9)
print('#ifndef __MIME_TYPES_H__')
print('#define __MIME_TYPES_H__')
print('/* Auto generated from parse-mime-types.py, do not modify */')
print('#define MIME_UNCOMPRESSED_LEN %d' % len(out))
print('#define MIME_COMPRESSED_LEN %d' % len(compressed_out))
print('#define MIME_ENTRIES %d' % entries)
print('struct mime_entry {')
print(' const char *extension;')
print(' const char *type;')
print('};')
print('static const unsigned char mime_entries_compressed[] = {')
def main():
parser = argparse.ArgumentParser(
description='Compresses ILBM IFF file with Deflate algorithm.')
parser.add_argument('-m',
'--method',
type=str,
choices=['none', 'deflate'],
default='deflate',
help='Compression method to use.')
parser.add_argument('-q',
'--quiet',
action='store_true',
help='Silence out diagnostic messages.')
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()
logLevel = [logging.INFO, logging.WARNING][args.quiet]
logging.basicConfig(level=logLevel, format="%(levelname)s: %(message)s")
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)
compression = 0
if args.method == 'deflate':
opts = zopfli.Options()
payload = zopfli.compress(opts, payload, len(payload))
compression = 254
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)
def main():
parser = argparse.ArgumentParser(
description='Compresses ILBM IFF file with Deflate algorithm.')
parser.add_argument(
'-m', '--method', type=str, choices=['none', 'deflate'],
default='deflate', help='Compression method to use.')
parser.add_argument(
'-q', '--quiet', action='store_true',
help='Silence out diagnostic messages.')
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()
logLevel = [logging.INFO, logging.WARNING][args.quiet]
logging.basicConfig(level=logLevel, format="%(levelname)s: %(message)s")
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)
compression = 0
if args.method == 'deflate':
opts = zopfli.Options()
payload = zopfli.compress(opts, payload, len(payload))
compression = 254
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)