diff options
| author | unknown <FreddyFunk@users.noreply.github.com> | 2019-02-08 23:11:00 +0100 |
|---|---|---|
| committer | FreddyFunk <FreddyFunk@users.noreply.github.com> | 2019-03-29 18:22:08 +0100 |
| commit | 72477731ed20c56a4d6f18a22f43224fab667cef (patch) | |
| tree | b42e73051351850148cbffe65c528c0adfff62af /src/common/zstd_compression.h | |
| parent | ca82589350970effc06d5aa494e6fee865c36c8a (diff) | |
common/zstd_compression: Add Zstandard wrapper
Diffstat (limited to 'src/common/zstd_compression.h')
| -rw-r--r-- | src/common/zstd_compression.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/common/zstd_compression.h b/src/common/zstd_compression.h new file mode 100644 index 0000000000..c011ac34bf --- /dev/null +++ b/src/common/zstd_compression.h @@ -0,0 +1,44 @@ +// Copyright 2019 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <vector> + +#include "common/common_types.h" + +namespace Common::Compression { + +/** + * Compresses a source memory region with Zstandard and returns the compressed data in a vector. + * + * @param source the uncompressed source memory region. + * @param source_size the size in bytes of the uncompressed source memory region. + * @param compression_level the used compression level. Should be between 1 and 22. + * + * @return the compressed data. + */ +std::vector<u8> CompressDataZSTD(const u8* source, std::size_t source_size, s32 compression_level); + +/** + * Compresses a source memory region with Zstandard with the default compression level and returns + * the compressed data in a vector. + * + * @param source the uncompressed source memory region. + * @param source_size the size in bytes of the uncompressed source memory region. + * + * @return the compressed data. + */ +std::vector<u8> CompressDataZSTDDefault(const u8* source, std::size_t source_size); + +/** + * Decompresses a source memory region with Zstandard and returns the uncompressed data in a vector. + * + * @param compressed the compressed source memory region. + * @param uncompressed_size the size in bytes of the uncompressed data. + * + * @return the decompressed data. + */ +std::vector<u8> DecompressDataZSTD(const std::vector<u8>& compressed, + std::size_t uncompressed_size); + +} // namespace Common::Compression
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