def read(fp, encoding, depth):
"""
Reads layers and masks information.
"""
logger.debug('reading layers and masks information...')
length = read_fmt("I", fp)[0]
start_pos = fp.tell()
logger.debug('length=%d, start_pos=%d', length, start_pos)
layers = _read_layers(fp, encoding, depth)
global_mask_info = None
tagged_blocks = []
remaining_length = length - (fp.tell() - start_pos)
if remaining_length > 0:
logger.debug('reading global mask info...')
global_mask_info = _read_global_mask_info(fp)
synchronize(fp) # hack hack hack
remaining_length = length - (fp.tell() - start_pos)
if remaining_length > 0:
tagged_blocks = _read_layer_tagged_blocks(fp, remaining_length, 4)
# remaining_length = length - (fp.tell() - start_pos)
# if remaining_length > 0:
# fp.seek(remaining_length, 1)
# logger.debug('skipping %s bytes', remaining_length)
return LayerAndMaskData(layers, global_mask_info, tagged_blocks)
def read(fp, encoding, depth):
"""
Reads layers and masks information.
"""
logger.debug('reading layers and masks information...')
length = read_fmt("I", fp)[0]
start_pos = fp.tell()
logger.debug('length=%d, start_pos=%d', length, start_pos)
layers = _read_layers(fp, encoding, depth)
global_mask_info = None
tagged_blocks = []
remaining_length = length - (fp.tell() - start_pos)
if remaining_length > 0:
logger.debug('reading global mask info...')
global_mask_info = _read_global_mask_info(fp)
synchronize(fp) # hack hack hack
remaining_length = length - (fp.tell() - start_pos)
tagged_blocks = _read_layer_tagged_blocks(fp, remaining_length, 4)
remaining_length = length - (fp.tell() - start_pos)
if remaining_length > 0:
fp.seek(remaining_length, 1)
logger.debug('skipping %s bytes', remaining_length)
return LayerAndMaskData(layers, global_mask_info, tagged_blocks)
def read(fp, encoding, depth, version):
"""
Reads layers and masks information.
"""
if version == 1:
length = read_fmt("I", fp)[0]
elif version == 2:
length = read_fmt("Q", fp)[0]
start_pos = fp.tell()
logger.debug('reading layers and masks information...')
logger.debug(' length=%d, start_pos=%d', length, start_pos)
global_mask_info = None
tagged_blocks = []
if length > 0:
layers = _read_layers(fp, encoding, depth, version)
remaining_length = length - (fp.tell() - start_pos)
if remaining_length > 0:
global_mask_info = _read_global_mask_info(fp)
synchronize(fp) # hack hack hack
remaining_length = length - (fp.tell() - start_pos)
logger.debug('reading tagged blocks...')
logger.debug(' length=%d, start_pos=%d', remaining_length,
fp.tell())
tagged_blocks = _read_layer_tagged_blocks(fp, remaining_length,
version, 4)
remaining_length = length - (fp.tell() - start_pos)
if remaining_length > 0:
fp.seek(remaining_length, 1)
logger.debug('skipping %s bytes', remaining_length)
else:
layers = _read_layers(fp, encoding, depth, version, 0)
return LayerAndMaskData(layers, global_mask_info, tagged_blocks)
def read(fp, encoding, depth):
"""
Reads layers and masks information.
"""
length = read_fmt("I", fp)[0]
start_position = fp.tell()
layers = _read_layers(fp, encoding, depth)
# XXX: are tagged blocks really after the layers?
# XXX: does global mask reading really work?
global_mask_info = _read_global_mask_info(fp)
consumed_bytes = fp.tell() - start_position
synchronize(fp) # hack hack hack
tagged_blocks = _read_layer_tagged_blocks(fp, length - consumed_bytes)
consumed_bytes = fp.tell() - start_position
fp.seek(length-consumed_bytes, 1)
return LayerAndMaskData(layers, global_mask_info, tagged_blocks)