/* SPDX-License-Identifier: BSD-3-Clause */ /* Copyright(c) 2007-2022 Intel Corporation */ /** ***************************************************************************** * @file dc_header_footer.h * * @ingroup Dc_DataCompression * * @description * Definition of the Data Compression header and footer parameters. * *****************************************************************************/ #ifndef DC_HEADER_FOOTER_H_ #define DC_HEADER_FOOTER_H_ /* Header and footer sizes for Zlib and Gzip */ #define DC_ZLIB_HEADER_SIZE (2) #define DC_GZIP_HEADER_SIZE (10) #define DC_ZLIB_FOOTER_SIZE (4) #define DC_GZIP_FOOTER_SIZE (8) /* Values used to build the headers for Zlib and Gzip */ #define DC_GZIP_ID1 (0x1f) #define DC_GZIP_ID2 (0x8b) #define DC_GZIP_FILESYSTYPE (0x03) #define DC_ZLIB_WINDOWSIZE_OFFSET (4) #define DC_ZLIB_FLEVEL_OFFSET (6) #define DC_ZLIB_HEADER_OFFSET (31) /* Compression level for Zlib */ #define DC_ZLIB_LEVEL_0 (0) #define DC_ZLIB_LEVEL_1 (1) #define DC_ZLIB_LEVEL_2 (2) #define DC_ZLIB_LEVEL_3 (3) /* CM parameter for Zlib */ #define DC_ZLIB_CM_DEFLATE (8) /* Type of Gzip compression */ #define DC_GZIP_FAST_COMP (4) #define DC_GZIP_MAX_COMP (2) #endif /* DC_HEADER_FOOTER_H_ */