mirror of
https://github.com/coop-deluxe/sm64coopdx.git
synced 2025-10-30 08:01:01 +00:00
95 lines
3.2 KiB
Python
95 lines
3.2 KiB
Python
#!/usr/bin/env python3
|
|
|
|
# requires Pillow and zstandard for Python
|
|
# on msys, install Pillow with
|
|
# pacman -S mingw-w64-x86_64-python-pillow
|
|
# zstd needs to be compiled, because the one in pip3 fails to do so:
|
|
# pacman -S mingw-w64-x86_64-python-setuptools mingw-w64-x86_64-zstd
|
|
# git clone https://github.com/indygreg/python-zstandard.git --recursive && cd python-zstandard
|
|
# python setup.py build_ext --external clean
|
|
# run like this:
|
|
# ./unpak.py pakfile.pak outdir tools/default_crcmap.txt
|
|
# any files not found in crcmap will go to the "nonmatching" folder
|
|
|
|
import os
|
|
import sys
|
|
import zstd
|
|
import struct
|
|
from PIL import Image
|
|
|
|
PAK_MAGIC = b'\x11\xde\x37\x10\x68\x75\xb6\xe8'
|
|
|
|
if len(sys.argv) < 3:
|
|
print('usage: unpak <input.pak> <outdir> [<crcmap>]')
|
|
sys.exit(1)
|
|
|
|
pakfname = sys.argv[1]
|
|
outpath = sys.argv[2]
|
|
mapfname = "crcmap.txt"
|
|
if len(sys.argv) > 3:
|
|
mapfname = sys.argv[3]
|
|
|
|
# load the CRC map
|
|
crcmap = dict()
|
|
try:
|
|
with open(mapfname, 'r') as f:
|
|
for line in f:
|
|
line = line.strip()
|
|
if line == '' or line[0] == '#':
|
|
continue
|
|
tok = line.split(',')
|
|
crcstr = tok[0].strip()
|
|
if crcstr.startswith('0x'):
|
|
crc = int(crcstr[2:], 16)
|
|
else:
|
|
crc = int(crcstr)
|
|
path = os.path.join(outpath, tok[1].strip())
|
|
if crc in crcmap:
|
|
crcmap[crc].append(path)
|
|
else:
|
|
crcmap[crc] = [path]
|
|
except OSError as e:
|
|
print('could not open {0}: {1}'.format(mapfname, e))
|
|
sys.exit(2)
|
|
except ValueError as e:
|
|
print('invalid integer in {0}: {1}'.format(mapfname, e))
|
|
sys.exit(2)
|
|
|
|
unmatchdir = os.path.join(outpath, "nonmatching")
|
|
if not os.path.exists(unmatchdir):
|
|
os.makedirs(unmatchdir)
|
|
|
|
# read the PAK
|
|
try:
|
|
texlist = []
|
|
with open(pakfname, "rb") as f:
|
|
magic = f.read(len(PAK_MAGIC))
|
|
if magic != PAK_MAGIC:
|
|
print('invalid magic in PAK ' + pakfname)
|
|
sys.exit(3)
|
|
texcount = int.from_bytes(f.read(8), byteorder='little')
|
|
print('reading {0} textures from {1}'.format(texcount, pakfname))
|
|
for i in range(texcount):
|
|
crc = int.from_bytes(f.read(4), byteorder='little')
|
|
size = int.from_bytes(f.read(4), byteorder='little')
|
|
offset = int.from_bytes(f.read(8), byteorder='little')
|
|
width = int.from_bytes(f.read(8), byteorder='little')
|
|
height = int.from_bytes(f.read(8), byteorder='little')
|
|
texlist.append((crc, size, offset, width, height))
|
|
for (crc, size, ofs, w, h) in texlist:
|
|
f.seek(ofs)
|
|
data = f.read(size)
|
|
img = Image.frombytes('RGBA', (w, h), zstd.decompress(data))
|
|
if crc in crcmap:
|
|
for path in crcmap[crc]:
|
|
[fpath, fname] = os.path.split(path)
|
|
if not os.path.exists(fpath):
|
|
os.makedirs(fpath)
|
|
img.save(path)
|
|
else:
|
|
print('unknown crc: {0:08x}'.format(crc))
|
|
path = os.path.join(unmatchdir, "{0:08x}.png".format(crc))
|
|
img.save(path)
|
|
except OSError as e:
|
|
print('could not open {0}: {1}'.format(pakfname, e))
|
|
sys.exit(3)
|