Cool_Tools/ifstools
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cmdline args, texture compression caching

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This commit is contained in:
Will Toohey 2017-12-19 11:33:32 +10:00
parent 2f6c286003
commit b84e329d9d
5 changed files with 90 additions and 37 deletions
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2
handlers/GenericFile.py
View File

@ -53,7 +53,7 @@ class GenericFile(object):
self.size = len(ret)
return ret
def repack(self, manifest, data_blob, progress):
def repack(self, manifest, data_blob, progress, recache):
if progress:
print(self.name)
elem = etree.SubElement(manifest, self.packed_name)

4
handlers/GenericFolder.py
View File

@ -53,7 +53,7 @@ class GenericFolder():
return cls(ifs, name, time, files, folders)
def repack(self, manifest, data_blob, progress):
def repack(self, manifest, data_blob, progress, recache):
if self.name:
manifest = etree.SubElement(manifest, self.packed_name)
manifest.attrib['__type'] = 's32'
@ -62,7 +62,7 @@ class GenericFolder():
print(self.name)
for name, entry in chain(self.folders.items(), self.files.items()):
entry.repack(manifest, data_blob, progress)
entry.repack(manifest, data_blob, progress, recache)
def tostring(self, indent = 0):
ret = ''

62
handlers/ImageFile.py
View File

@ -1,5 +1,7 @@
from io import BytesIO
from struct import unpack, pack
from os.path import getmtime, isfile, join, dirname
from os import utime, mkdir
from PIL import Image
import lxml.etree as etree
@ -83,24 +85,14 @@ class ImageFile(GenericFile):
im.save(b, format = 'PNG')
return b.getvalue()
def repack(self, manifest, data_blob, progress):
def repack(self, manifest, data_blob, progress, recache):
if progress:
print(self.name)
data = self.load()
im = Image.open(BytesIO(data))
if self.format == 'argb8888rev':
data = im.tobytes('raw', 'BGRA')
else:
raise NotImplementedError('Unknown format {}'.format(self.format))
if self.compress == 'avslz':
o = data
uncompressed_size = len(data)
data = lz77.compress(data)
compressed_size = len(data)
data = pack('>I', uncompressed_size) + pack('>I', compressed_size) + data
data = self.read_cache(recache)
else:
data = self._load_im()
# offset, size, timestamp
elem = etree.SubElement(manifest, self.packed_name)
@ -108,3 +100,45 @@ class ImageFile(GenericFile):
elem.text = '{} {} {}'.format(len(data_blob.getvalue()), len(data), self.time)
data_blob.write(data)
def _load_im(self):
data = self.load()
im = Image.open(BytesIO(data))
if im.mode != 'RGBA':
im = im.convert('RGBA')
if self.format == 'argb8888rev':
data = im.tobytes('raw', 'BGRA')
else:
raise NotImplementedError('Unknown format {}'.format(self.format))
return data
def write_cache(self, data):
cache = join(dirname(self.path), '_cache', self.name)
self._mkdir(dirname(cache))
with open(cache, 'wb') as f:
f.write(data)
utime(cache, (self.time, self.time))
def read_cache(self, recache):
cache = join(dirname(self.path), '_cache', self.name)
if isfile(cache) and not recache:
mtime = int(getmtime(cache))
if self.time <= mtime:
with open(cache, 'rb') as f:
return f.read()
print('Not cached/out of date, compressing')
data = self._load_im()
uncompressed_size = len(data)
data = lz77.compress(data)
compressed_size = len(data)
data = pack('>I', uncompressed_size) + pack('>I', compressed_size) + data
self.write_cache(data)
return data
def _mkdir(self, dir):
try:
mkdir(dir)
except FileExistsError:
pass

9
handlers/lz77.py
View File

@ -3,6 +3,8 @@ from builtins import bytes
from struct import unpack, pack
from io import BytesIO
from tqdm import tqdm
WINDOW_SIZE = 0x1000
WINDOW_MASK = WINDOW_SIZE - 1
THRESHOLD = 3
@ -57,7 +59,9 @@ def match_window(in_data, offset):
return None
def compress(input):
def compress(input, progress = True):
pbar = tqdm(total = len(input), leave = False, unit = 'b', unit_scale = True,
desc = 'Compressing', disable = not progress)
compressed = bytearray()
input = bytes([0]*WINDOW_SIZE) + bytes(input)
input_size = len(input)
@ -77,9 +81,11 @@ def compress(input):
buf.extend(pack('>H', info))
bit = 0
current_pos += length
pbar.update(length)
else:
buf.append(input[current_pos])
current_pos += 1
pbar.update(1)
bit = 1
flag_byte = (flag_byte >> 1) | ((bit & 1) << 7)
compressed.append(flag_byte)
@ -88,6 +94,7 @@ def compress(input):
compressed.append(0)
compressed.append(0)
pbar.close()
return bytes(compressed)
def compress_dummy(input):

50
ifstools.py
View File

@ -4,6 +4,7 @@ from io import BytesIO
import hashlib
import lxml.etree as etree
from time import time as unixtime
import argparse
from kbinxml.kbinxml import KBinXML
from kbinxml.bytebuffer import ByteBuffer
@ -27,9 +28,8 @@ class IFS:
raise IOError('Input path does not exist')
def _load_ifs(self, path):
out = splitext(basename(path))[0] + '_ifs'
self.default_out = join(dirname(path), out)
self.ifs_out = path
self.ifs_out = basename(path)
self.default_out = splitext(self.ifs_out)[0] + '_ifs'
with open(path, 'rb') as f:
self.file = f.read()
@ -52,8 +52,9 @@ class IFS:
assert self.tree_size == self._tree_size()
def _load_dir(self, path):
self.default_out = path
self.ifs_out = path.replace('_ifs', '.ifs')
path = path.rstrip('/\\') + '/'
self.default_out = dirname(path)
self.ifs_out = self.default_out.replace('_ifs', '.ifs')
self.file_version = FILE_VERSION
self.time = int(getmtime(path))
@ -79,7 +80,10 @@ class IFS:
tree['files'] = files
tree['folders'] = []
for dir in dirs:
tree['folders'].append(self._create_dir_tree_recurse(walker))
subdir = self._create_dir_tree_recurse(walker)
# this should probably be moved to TexFolder.py
if basename(subdir['path']) != '_cache':
tree['folders'].append(subdir)
return tree
@ -97,7 +101,7 @@ class IFS:
f.write(self.manifest.to_text().encode('utf8'))
self._extract_tree(self.tree, progress, recurse)
def repack(self, progress = True, path = None):
def repack(self, progress = True, recache = False, path = None):
if path is None:
path = self.ifs_out
data_blob = BytesIO()
@ -106,7 +110,7 @@ class IFS:
manifest_info = etree.SubElement(self.manifest.xml_doc, '_info_')
# the important bit
self.tree.repack(self.manifest.xml_doc, data_blob, progress)
self.tree.repack(self.manifest.xml_doc, data_blob, progress, recache)
data = data_blob.getvalue()
data_md5 = etree.SubElement(manifest_info, 'md5')
@ -167,7 +171,7 @@ class IFS:
self._save_with_time(out, data, f.time)
if recurse and f.name.endswith('.ifs'):
i = IFS(out)
i.extract_all()
i.extract_all(progress, recurse)
for name, f in tree.folders.items():
self._extract_tree(f, progress, recurse, join(dir, f.name))
@ -176,7 +180,6 @@ class IFS:
timestamp = tree.time if tree.time else self.time
utime(outdir, (timestamp, timestamp))
def _mkdir(self, dir):
try:
mkdir(dir)
@ -196,12 +199,21 @@ class IFS:
utime(filename, (time,time))
if __name__ == '__main__':
import sys
if len(sys.argv) < 2:
print('ifstools filename.ifs OR folder_ifs')
exit()
i = IFS(sys.argv[1])
if i.is_file:
i.extract_all()
else:
i.repack()
parser = argparse.ArgumentParser(description='Unpack/pack IFS files and textures')
parser.add_argument('files', metavar='file.ifs|folder_ifs', type=str, nargs='+',
help='files/folders to process. Files will be unpacked, folders will be repacked')
parser.add_argument('--recache', action='store_true', help='ignore texture cache, recompress all')
parser.add_argument('-s', '--silent', action='store_false', dest='progress',
help='don\'t display files as they are processed')
parser.add_argument('-r', '--norecurse', action='store_false', dest='recurse',
help='if file contains another IFS, don\'t extract its contents')
args = parser.parse_args()
for f in args.files:
i = IFS(f)
path = None
if i.is_file:
i.extract_all(args.progress, args.recurse)
else:
i.repack(args.progress, args.recache)