Lines Matching refs:ImageChunk

245 class ImageChunk(object):  class
338         if ImageChunk.CHUNK_HEADER_SIZE != chunk_hdr_sz:
368             chunk_header = self.img_handler.read(ImageChunk.CHUNK_HEADER_SIZE)
369 …  (chunk_type, _, chunk_sz, total_sz) = struct.unpack(ImageChunk.CHUNK_HEADER_FORMAT, chunk_header)
370             chunk_data_size = total_sz - ImageChunk.CHUNK_HEADER_SIZE
372             if chunk_type == ImageChunk.CHUNK_TYPE_RAW:
376                 self.chunks.append(ImageChunk(ImageChunk.CHUNK_TYPE_RAW, chunk_offset,
380             elif chunk_type == ImageChunk.CHUNK_TYPE_FILL:
385                 self.chunks.append(ImageChunk(ImageChunk.CHUNK_TYPE_FILL, chunk_offset,
388             elif chunk_type == ImageChunk.CHUNK_TYPE_DONT_CARE:
392                 self.chunks.append(ImageChunk(ImageChunk.CHUNK_TYPE_DONT_CARE, chunk_offset,
395             elif chunk_type == ImageChunk.CHUNK_TYPE_CRC32:
447         self.img_handler.write(struct.pack(ImageChunk.CHUNK_HEADER_FORMAT,
448                                       ImageChunk.CHUNK_TYPE_DONT_CARE,
451                                       struct.calcsize(ImageChunk.CHUNK_HEADER_FORMAT)))
478         self.img_handler.write(struct.pack(ImageChunk.CHUNK_HEADER_FORMAT,
479                                       ImageChunk.CHUNK_TYPE_RAW,
483                                       struct.calcsize(ImageChunk.CHUNK_HEADER_FORMAT)))
511         self.img_handler.write(struct.pack(ImageChunk.CHUNK_HEADER_FORMAT,
512                                       ImageChunk.CHUNK_TYPE_FILL,
515                                       4 + struct.calcsize(ImageChunk.CHUNK_HEADER_FORMAT)))
563             if chunk.chunk_type == ImageChunk.CHUNK_TYPE_RAW:
566             elif chunk.chunk_type == ImageChunk.CHUNK_TYPE_FILL:
571                 if chunk.chunk_type != ImageChunk.CHUNK_TYPE_DONT_CARE:
629                 if chunk.chunk_type == ImageChunk.CHUNK_TYPE_RAW:
631                                    struct.calcsize(ImageChunk.CHUNK_HEADER_FORMAT) + num_to_keep)
633                 elif chunk.chunk_type == ImageChunk.CHUNK_TYPE_FILL:
635                                    struct.calcsize(ImageChunk.CHUNK_HEADER_FORMAT) + 4)
637                 elif chunk.chunk_type == ImageChunk.CHUNK_TYPE_DONT_CARE:
638 …        truncate_at = chunk.nsparsed_chunk_offset + struct.calcsize(ImageChunk.CHUNK_HEADER_FORMAT)
643                 total_sz = data_sz + struct.calcsize(ImageChunk.CHUNK_HEADER_FORMAT)
645                 self.img_handler.write(struct.pack(ImageChunk.CHUNK_HEADER_FORMAT,