Lines Matching refs:_image

711     self._image = open(self.filename, 'r+b')
712     self._image.seek(0, os.SEEK_END)
713     self.image_size = self._image.tell()
715     self._image.seek(0, os.SEEK_SET)
716     header_bin = self._image.read(struct.calcsize(self.HEADER_FORMAT))
745       chunk_offset = self._image.tell()
747       header_bin = self._image.read(struct.calcsize(ImageChunk.FORMAT))
761                                        self._image.tell(),
763         self._image.seek(data_sz, os.SEEK_CUR)
769         fill_data = self._image.read(4)
790         self._image.read(4)
798     self._sparse_end = self._image.tell()
804     junk_len = len(self._image.read())
825     self._image.seek(self.NUM_CHUNKS_AND_BLOCKS_OFFSET, os.SEEK_SET)
826     self._image.write(struct.pack(self.NUM_CHUNKS_AND_BLOCKS_FORMAT,
841       self._image.seek(0, os.SEEK_END)
845       self._image.truncate(self._image.tell() + num_bytes)
853     self._image.seek(self._sparse_end, os.SEEK_SET)
854     self._image.write(struct.pack(ImageChunk.FORMAT,
872       self._image.seek(0, os.SEEK_END)
873       self._image.write(data)
881     self._image.seek(self._sparse_end, os.SEEK_SET)
882     self._image.write(struct.pack(ImageChunk.FORMAT,
888     self._image.write(data)
905       self._image.seek(0, os.SEEK_END)
906       self._image.write(fill_data * (size/4))
914     self._image.seek(self._sparse_end, os.SEEK_SET)
915     self._image.write(struct.pack(ImageChunk.FORMAT,
920     self._image.write(fill_data)
950       self._image.seek(self._file_pos)
951       data = self._image.read(size)
966         self._image.seek(chunk.input_offset + chunk_pos_offset)
967         data.extend(self._image.read(chunk_pos_to_go))
1003       self._image.truncate(size)
1037         self._image.seek(chunk.chunk_offset)
1038         self._image.write(struct.pack(ImageChunk.FORMAT,
1054       self._image.truncate(truncate_at)