def decode_animation(self, file, filename):
# If file is not an animated GIF, it will be loaded as a single-frame animation.
file_bytes = file.read()
data = c_void_p(cf.CFDataCreate(None, file_bytes, len(file_bytes)))
sourceRef = c_void_p(quartz.CGImageSourceCreateWithData(data, None))
# Get number of frames in the animation.
count = quartz.CGImageSourceGetCount(sourceRef)
frames = []
for index in range(count):
# Try to determine frame duration from GIF properties dictionary.
duration = 0.1 # default duration if none found
props = c_void_p(quartz.CGImageSourceCopyPropertiesAtIndex(sourceRef, index, None))
if cf.CFDictionaryContainsKey(props, kCGImagePropertyGIFDictionary):
gif_props = c_void_p(cf.CFDictionaryGetValue(props, kCGImagePropertyGIFDictionary))
if cf.CFDictionaryContainsKey(gif_props, kCGImagePropertyGIFDelayTime):
duration = cfnumber_to_number(c_void_p(cf.CFDictionaryGetValue(gif_props, kCGImagePropertyGIFDelayTime)))
cf.CFRelease(props)
image = self._get_pyglet_ImageData_from_source_at_index(sourceRef, index)
frames.append( AnimationFrame(image, duration) )
cf.CFRelease(data)
cf.CFRelease(sourceRef)
return Animation(frames)
def decode(self, file, filename):
file_bytes = file.read()
data = c_void_p(cf.CFDataCreate(None, file_bytes, len(file_bytes)))
# Second argument is an options dictionary. It might be a good idea to provide
# a value for kCGImageSourceTypeIdentifierHint here using filename extension.
sourceRef = c_void_p(quartz.CGImageSourceCreateWithData(data, None))
image = self._get_pyglet_ImageData_from_source_at_index(sourceRef, 0)
cf.CFRelease(data)
cf.CFRelease(sourceRef)
return image
