Lines Matching refs:ImageChunk

654 class ImageChunk(object):
674     """Initializes an ImageChunk object.
795     if chunk_hdr_sz != struct.calcsize(ImageChunk.FORMAT):
812       header_bin = self._image.read(struct.calcsize(ImageChunk.FORMAT))
813       (chunk_type, _, chunk_sz, total_sz) = struct.unpack(ImageChunk.FORMAT,
815       data_sz = total_sz - struct.calcsize(ImageChunk.FORMAT)
817       if chunk_type == ImageChunk.TYPE_RAW:
822         self._chunks.append(ImageChunk(ImageChunk.TYPE_RAW,
830       elif chunk_type == ImageChunk.TYPE_FILL:
835         self._chunks.append(ImageChunk(ImageChunk.TYPE_FILL,
841       elif chunk_type == ImageChunk.TYPE_DONT_CARE:
845         self._chunks.append(ImageChunk(ImageChunk.TYPE_DONT_CARE,
851       elif chunk_type == ImageChunk.TYPE_CRC32:
925     self._image.write(struct.pack(ImageChunk.FORMAT,
926                                   ImageChunk.TYPE_DONT_CARE,
929                                   struct.calcsize(ImageChunk.FORMAT)))
959     self._image.write(struct.pack(ImageChunk.FORMAT,
960                                   ImageChunk.TYPE_RAW,
964                                   struct.calcsize(ImageChunk.FORMAT)))
998     self._image.write(struct.pack(ImageChunk.FORMAT,
999                                   ImageChunk.TYPE_FILL,
1002                                   4 + struct.calcsize(ImageChunk.FORMAT)))
1050       if chunk.chunk_type == ImageChunk.TYPE_RAW:
1053       elif chunk.chunk_type == ImageChunk.TYPE_FILL:
1058         assert chunk.chunk_type == ImageChunk.TYPE_DONT_CARE
1113         if chunk.chunk_type == ImageChunk.TYPE_RAW:
1115                          struct.calcsize(ImageChunk.FORMAT) + num_to_keep)
1117         elif chunk.chunk_type == ImageChunk.TYPE_FILL:
1119                          struct.calcsize(ImageChunk.FORMAT) + 4)
1122           assert chunk.chunk_type == ImageChunk.TYPE_DONT_CARE
1123           truncate_at = chunk.chunk_offset + struct.calcsize(ImageChunk.FORMAT)
1126         total_sz = data_sz + struct.calcsize(ImageChunk.FORMAT)
1128         self._image.write(struct.pack(ImageChunk.FORMAT,