Lines Matching refs:ImageChunk

559 class ImageChunk(object):  class
691     if chunk_hdr_sz != struct.calcsize(ImageChunk.FORMAT):
708       header_bin = self._image.read(struct.calcsize(ImageChunk.FORMAT))
709       (chunk_type, _, chunk_sz, total_sz) = struct.unpack(ImageChunk.FORMAT,
711       data_sz = total_sz - struct.calcsize(ImageChunk.FORMAT)
713       if chunk_type == ImageChunk.TYPE_RAW:
718         self._chunks.append(ImageChunk(ImageChunk.TYPE_RAW,
726       elif chunk_type == ImageChunk.TYPE_FILL:
731         self._chunks.append(ImageChunk(ImageChunk.TYPE_FILL,
737       elif chunk_type == ImageChunk.TYPE_DONT_CARE:
741         self._chunks.append(ImageChunk(ImageChunk.TYPE_DONT_CARE,
747       elif chunk_type == ImageChunk.TYPE_CRC32:
815     self._image.write(struct.pack(ImageChunk.FORMAT,
816                                   ImageChunk.TYPE_DONT_CARE,
819                                   struct.calcsize(ImageChunk.FORMAT)))
843     self._image.write(struct.pack(ImageChunk.FORMAT,
844                                   ImageChunk.TYPE_RAW,
848                                   struct.calcsize(ImageChunk.FORMAT)))
876     self._image.write(struct.pack(ImageChunk.FORMAT,
877                                   ImageChunk.TYPE_FILL,
880                                   4 + struct.calcsize(ImageChunk.FORMAT)))
926       if chunk.chunk_type == ImageChunk.TYPE_RAW:
929       elif chunk.chunk_type == ImageChunk.TYPE_FILL:
934         assert chunk.chunk_type == ImageChunk.TYPE_DONT_CARE
984         if chunk.chunk_type == ImageChunk.TYPE_RAW:
986                          struct.calcsize(ImageChunk.FORMAT) + num_to_keep)
988         elif chunk.chunk_type == ImageChunk.TYPE_FILL:
990                          struct.calcsize(ImageChunk.FORMAT) + 4)
993           assert chunk.chunk_type == ImageChunk.TYPE_DONT_CARE
994           truncate_at = chunk.chunk_offset + struct.calcsize(ImageChunk.FORMAT)
997         total_sz = data_sz + struct.calcsize(ImageChunk.FORMAT)
999         self._image.write(struct.pack(ImageChunk.FORMAT,