| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * erofs-utils/include/erofs/decompress.h |
| * |
| * Copyright (C), 2008-2020, OPPO Mobile Comm Corp., Ltd. |
| * Created by Huang Jianan <huangjianan@oppo.com> |
| */ |
| #ifndef __EROFS_DECOMPRESS_H |
| #define __EROFS_DECOMPRESS_H |
| |
| #include "internal.h" |
| |
| enum { |
| Z_EROFS_COMPRESSION_SHIFTED = Z_EROFS_COMPRESSION_MAX, |
| Z_EROFS_COMPRESSION_RUNTIME_MAX |
| }; |
| |
| struct z_erofs_decompress_req { |
| char *in, *out; |
| |
| /* |
| * initial decompressed bytes that need to be skipped |
| * when finally copying to output buffer |
| */ |
| unsigned int decodedskip; |
| unsigned int inputsize, decodedlength; |
| |
| /* indicate the algorithm will be used for decompression */ |
| unsigned int alg; |
| bool partial_decoding; |
| }; |
| |
| int z_erofs_decompress(struct z_erofs_decompress_req *rq); |
| |
| #endif |
