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lz4_compression: Make use of std::span

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Allows making the incoming data stream non-allocating.
This commit is contained in:
Lioncash 2021-05-24 05:28:45 -04:00
parent 5068279f23
commit 00213377b1
2 changed files with 4 additions and 4 deletions
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3
src/common/lz4_compression.cpp
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@ -59,8 +59,7 @@ std::vector<u8> CompressDataLZ4HCMax(const u8* source, std::size_t source_size)
return CompressDataLZ4HC(source, source_size, LZ4HC_CLEVEL_MAX); return CompressDataLZ4HC(source, source_size, LZ4HC_CLEVEL_MAX);
} }
std::vector<u8> DecompressDataLZ4(const std::vector<u8>& compressed, std::vector<u8> DecompressDataLZ4(std::span<const u8> compressed, std::size_t uncompressed_size) {
std::size_t uncompressed_size) {
std::vector<u8> uncompressed(uncompressed_size); std::vector<u8> uncompressed(uncompressed_size);
const int size_check = LZ4_decompress_safe(reinterpret_cast<const char*>(compressed.data()), const int size_check = LZ4_decompress_safe(reinterpret_cast<const char*>(compressed.data()),
reinterpret_cast<char*>(uncompressed.data()), reinterpret_cast<char*>(uncompressed.data()),

3
src/common/lz4_compression.h
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@ -4,6 +4,7 @@
#pragma once #pragma once
#include <span>
#include <vector> #include <vector>
#include "common/common_types.h" #include "common/common_types.h"
@ -53,7 +54,7 @@ namespace Common::Compression {
* *
* @return the decompressed data. * @return the decompressed data.
*/ */
[[nodiscard]] std::vector<u8> DecompressDataLZ4(const std::vector<u8>& compressed, [[nodiscard]] std::vector<u8> DecompressDataLZ4(std::span<const u8> compressed,
std::size_t uncompressed_size); std::size_t uncompressed_size);
} // namespace Common::Compression } // namespace Common::Compression