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extends Node
class_name GifDecoder
func decode_file(path):
var file = File.new()
file.open(path, File.READ)
var bytes = file.get_buffer(file.get_len())
file.close()
return decode_data(bytes)
func decode_block(block: PoolByteArray, start, end):
var string = block.subarray(start, end).get_string_from_utf8()
if string.begins_with('GIF_MAKER::'):
return str2var(string.substr('GIF_MAKER::'.length(), string.length()))
return string
func decode_data(bytes: PoolByteArray):
var index = 0
var start = -1
var end = -1
var data = []
for byte in bytes:
if start != -1 \
and byte == 0x21:
end = index - 1
data.append(decode_block(bytes, start, end))
start = -1
end = -1
if byte == 0x21 \
and index < bytes.size() \
and bytes[index + 1] == 0xFE:
start = index + 2
index += 1
if end == -1 and start != -1:
end = bytes.size() - 1
data.append(decode_block(bytes, start, end))
return data
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