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Diffstat (limited to 'src/common/data_compression.cpp')
-rw-r--r-- | src/common/data_compression.cpp | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/src/common/data_compression.cpp b/src/common/data_compression.cpp deleted file mode 100644 index fdf4907d1..000000000 --- a/src/common/data_compression.cpp +++ /dev/null @@ -1,56 +0,0 @@ -// Copyright 2019 yuzu Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include <lz4hc.h> - -#include "data_compression.h" - -namespace Compression { - -std::vector<u8> CompressDataLZ4(const u8* source, std::size_t source_size, - bool use_LZ4_high_compression) { - if (source_size > LZ4_MAX_INPUT_SIZE) { - // Source size exceeds LZ4 maximum input size - return {}; - } - const auto source_size_int = static_cast<int>(source_size); - const int max_compressed_size = LZ4_compressBound(source_size_int); - std::vector<u8> compressed(max_compressed_size); - int compressed_size = 0; - - if (use_LZ4_high_compression) { - compressed_size = LZ4_compress_HC(reinterpret_cast<const char*>(source), - reinterpret_cast<char*>(compressed.data()), - source_size_int, max_compressed_size, LZ4HC_CLEVEL_MAX); - } else { - compressed_size = LZ4_compress_default(reinterpret_cast<const char*>(source), - reinterpret_cast<char*>(compressed.data()), - source_size_int, max_compressed_size); - } - - if (compressed_size <= 0) { - // Compression failed - return {}; - } - compressed.resize(compressed_size); - return compressed; -} - -std::vector<u8> DecompressDataLZ4(const std::vector<u8>& compressed, - std::size_t uncompressed_size) { - std::vector<u8> uncompressed(uncompressed_size); - const int size_check = LZ4_decompress_safe(reinterpret_cast<const char*>(compressed.data()), - reinterpret_cast<char*>(uncompressed.data()), - static_cast<int>(compressed.size()), - static_cast<int>(uncompressed.size())); - if (static_cast<int>(uncompressed_size) != size_check) { - // Decompression failed - return {}; - } - return uncompressed; -} - -} // namespace Compression |