citra-mk7/src/common/zstd_compression.h
Tobias f6b543886c
Port yuzu-emu/yuzu#4528: "common: Make use of [[nodiscard]] where applicable" (#5535)
Co-authored-by: LC <712067+lioncash@users.noreply.github.com>
2020-08-31 21:06:16 +02:00

46 lines
1.5 KiB
C++

// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#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.
*/
[[nodiscard]] 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.
*/
[[nodiscard]] 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.
*/
[[nodiscard]] std::vector<u8> DecompressDataZSTD(const std::vector<u8>& compressed);
} // namespace Common::Compression