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author | bunnei <bunneidev@gmail.com> | 2019-04-07 23:48:33 +0200 |
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committer | GitHub <noreply@github.com> | 2019-04-07 23:48:33 +0200 |
commit | 21a4e7deea9638e4841e57d815cf1ecb7543fb34 (patch) | |
tree | 97dd726abe476c0a4c03c5da1c39239e93c6ed2a /src/common/zstd_compression.h | |
parent | Merge pull request #2356 from lioncash/pair (diff) | |
parent | gitmodules: Replace taps with spaces (diff) | |
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Diffstat (limited to 'src/common/zstd_compression.h')
-rw-r--r-- | src/common/zstd_compression.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/common/zstd_compression.h b/src/common/zstd_compression.h new file mode 100644 index 000000000..e0a64b035 --- /dev/null +++ b/src/common/zstd_compression.h @@ -0,0 +1,42 @@ +// 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. + * + * @return the decompressed data. + */ +std::vector<u8> DecompressDataZSTD(const std::vector<u8>& compressed); + +} // namespace Common::Compression
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