pebble/tools/cat_resource_table.py
2025-01-27 11:38:16 -08:00

58 lines
2 KiB
Python

# Copyright 2024 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import argparse
import sys
import json
import struct
def main(pack_path, manifest_path):
with open(manifest_path, 'r') as f:
manifest = json.load(f)
resource_names = []
for r in manifest['media']:
if r['type'] == 'png-trans':
resource_names.append(r['defName'] + '_WHITE')
resource_names.append(r['defName'] + '_BLACK')
else:
resource_names.append(r['defName'])
with open(pack_path, 'rb') as f:
header = f.read(4116)
def resource_generator(tbl, num):
for i in xrange(0, num * 16, 16):
yield struct.unpack('<IIII', tbl[i:i + 16])
(num_resources, res_version) = struct.unpack('<I16s', header[:20])
print 'number of resources: {}'.format(num_resources)
print 'resource pack version: {}'.format(res_version)
print 'resource entries:'
print ''
print '{:<32s}\t{:>8s}\t{:>8s}\t{:>8s}'.format('name', 'offset', 'size', 'crc')
print '{:<32s}\t{:>8s}\t{:>8s}\t{:>8s}'.format('----', '------', '----', '---')
for x in resource_generator(header[20:], num_resources):
(index, offset, size, crc) = x
print '{:<32s}\t{:>8d}\t{:>8d}\t{:>08x}'.format(resource_names[index], offset, size, crc)
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('resource_pack')
parser.add_argument('resource_map')
args = parser.parse_args()
main(args.resource_pack, args.resource_map)