def writeToFile(self, fileobj):
# Truncate file
fileobj.seek(0)
fileobj.truncate()
# Scene index table will be rebuilt
self.sceneIndexTable = []
sceneIndex = 0
numScenes = len(self.sceneData)
# Process all scenes
block = ""
pointers = []
firstIndexInBlock = 0
while True:
writeBlock = False
if sceneIndex >= numScenes:
# All scenes done, write the last block
cmpData = None
writeBlock = True
else:
# Compress next scene
cmpData = ff7.compressGzip(self.sceneData[sceneIndex])
if len(cmpData) % 4 != 0:
cmpData += '\xff' * (4 - len(cmpData) % 4
) # pad scene to 4-byte boundary
if self.pointerTableSize + len(block) + len(
cmpData) > self.blockSize:
# Scene doesn't fit in current block, write it first
writeBlock = True
if writeBlock:
# Write current block to file
for p in pointers:
fileobj.write(struct.pack("<L", p >> 2))
for i in xrange(16 - len(pointers)):
fileobj.write(struct.pack("<L", 0xffffffff))
if len(block) < self.blockSize - self.pointerTableSize:
block += '\xff' * (self.blockSize - self.pointerTableSize -
len(block)) # pad with 0xff bytes
fileobj.write(block)
self.sceneIndexTable.append(firstIndexInBlock)
block = ""
pointers = []
firstIndexInBlock = sceneIndex
if sceneIndex >= numScenes:
# All done
break
else:
# Add compressed scene to block
pointers.append(len(block) + self.pointerTableSize)
block += cmpData
sceneIndex += 1
def writeToFile(self, fileobj):
# Truncate file
fileobj.seek(0)
fileobj.truncate()
# Scene index table will be rebuilt
self.sceneIndexTable = []
sceneIndex = 0
numScenes = len(self.sceneData)
# Process all scenes
block = ""
pointers = []
firstIndexInBlock = 0
while True:
writeBlock = False
if sceneIndex >= numScenes:
# All scenes done, write the last block
cmpData = None
writeBlock = True
else:
# Compress next scene
cmpData = ff7.compressGzip(self.sceneData[sceneIndex])
if len(cmpData) % 4 != 0:
cmpData += '\xff' * (4 - len(cmpData) % 4) # pad scene to 4-byte boundary
if self.pointerTableSize + len(block) + len(cmpData) > self.blockSize:
# Scene doesn't fit in current block, write it first
writeBlock = True
if writeBlock:
# Write current block to file
for p in pointers:
fileobj.write(struct.pack("<L", p >> 2))
for i in xrange(16 - len(pointers)):
fileobj.write(struct.pack("<L", 0xffffffff))
if len(block) < self.blockSize - self.pointerTableSize:
block += '\xff' * (self.blockSize - self.pointerTableSize - len(block)) # pad with 0xff bytes
fileobj.write(block)
self.sceneIndexTable.append(firstIndexInBlock)
block = ""
pointers = []
firstIndexInBlock = sceneIndex
if sceneIndex >= numScenes:
# All done
break
else:
# Add compressed scene to block
pointers.append(len(block) + self.pointerTableSize)
block += cmpData
sceneIndex += 1
def setData(self, data):
self.rawDataSize = len(data)
self.cmpData = ff7.compressGzip(data)