sig = fobj.read(4)
if sig != '\x00\x00\x00\x00':
raise SyntaxError, 'Unknown signature, expecting 0x00000000'
return read_32(fobj, (start + 4, length - 4), (width, height))
def read_32(fobj, (start, length), size):
"""
Read a 32bit RGB icon resource. Seems to be either uncompressed or
an RLE packbits-like scheme.
"""
fobj.seek(start)
sizesq = size[0] * size[1]
if length == sizesq * 3:
# uncompressed ("RGBRGBGB")
indata = fobj.read(length)
im = Image.frombuffer("RGB", size, indata, "raw", "RGB", 0, 1)
else:
# decode image
im = Image.new("RGB", size, None)
for band_ix in range(3):
data = []
bytesleft = sizesq
while bytesleft > 0:
byte = fobj.read(1)
if not byte:
break
byte = ord(byte)
if byte & 0x80:
blocksize = byte - 125
byte = fobj.read(1)
for i in range(blocksize):
if sig != '\x00\x00\x00\x00':
raise SyntaxError, 'Unknown signature, expecting 0x00000000'
return read_32(fobj, (start + 4, length - 4), (width, height))
def read_32(fobj, (start, length), size):
"""
Read a 32bit RGB icon resource. Seems to be either uncompressed or
an RLE packbits-like scheme.
"""
fobj.seek(start)
sizesq = size[0] * size[1]
if length == sizesq * 3:
# uncompressed ("RGBRGBGB")
indata = fobj.read(length)
im = Image.frombuffer("RGB", size, indata, "raw", "RGB", 0, 1)
else:
# decode image
im = Image.new("RGB", size, None)
for band_ix in range(3):
data = []
bytesleft = sizesq
while bytesleft > 0:
byte = fobj.read(1)
if not byte:
break
byte = ord(byte)
if byte & 0x80:
blocksize = byte - 125
byte = fobj.read(1)
for i in range(blocksize):
