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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 @@ | |||
| 1 | // Copyright 2019 yuzu Emulator Project | ||
| 2 | // Licensed under GPLv2 or any later version | ||
| 3 | // Refer to the license.txt file included. | ||
| 4 | |||
| 5 | #pragma once | ||
| 6 | |||
| 7 | #include <lz4hc.h> | ||
| 8 | |||
| 9 | #include "data_compression.h" | ||
| 10 | |||
| 11 | namespace Compression { | ||
| 12 | |||
| 13 | std::vector<u8> CompressDataLZ4(const u8* source, std::size_t source_size, | ||
| 14 | bool use_LZ4_high_compression) { | ||
| 15 | if (source_size > LZ4_MAX_INPUT_SIZE) { | ||
| 16 | // Source size exceeds LZ4 maximum input size | ||
| 17 | return {}; | ||
| 18 | } | ||
| 19 | const auto source_size_int = static_cast<int>(source_size); | ||
| 20 | const int max_compressed_size = LZ4_compressBound(source_size_int); | ||
| 21 | std::vector<u8> compressed(max_compressed_size); | ||
| 22 | int compressed_size = 0; | ||
| 23 | |||
| 24 | if (use_LZ4_high_compression) { | ||
| 25 | compressed_size = LZ4_compress_HC(reinterpret_cast<const char*>(source), | ||
| 26 | reinterpret_cast<char*>(compressed.data()), | ||
| 27 | source_size_int, max_compressed_size, LZ4HC_CLEVEL_MAX); | ||
| 28 | } else { | ||
| 29 | compressed_size = LZ4_compress_default(reinterpret_cast<const char*>(source), | ||
| 30 | reinterpret_cast<char*>(compressed.data()), | ||
| 31 | source_size_int, max_compressed_size); | ||
| 32 | } | ||
| 33 | |||
| 34 | if (compressed_size <= 0) { | ||
| 35 | // Compression failed | ||
| 36 | return {}; | ||
| 37 | } | ||
| 38 | compressed.resize(compressed_size); | ||
| 39 | return compressed; | ||
| 40 | } | ||
| 41 | |||
| 42 | std::vector<u8> DecompressDataLZ4(const std::vector<u8>& compressed, | ||
| 43 | std::size_t uncompressed_size) { | ||
| 44 | std::vector<u8> uncompressed(uncompressed_size); | ||
| 45 | const int size_check = LZ4_decompress_safe(reinterpret_cast<const char*>(compressed.data()), | ||
| 46 | reinterpret_cast<char*>(uncompressed.data()), | ||
| 47 | static_cast<int>(compressed.size()), | ||
| 48 | static_cast<int>(uncompressed.size())); | ||
| 49 | if (static_cast<int>(uncompressed_size) != size_check) { | ||
| 50 | // Decompression failed | ||
| 51 | return {}; | ||
| 52 | } | ||
| 53 | return uncompressed; | ||
| 54 | } | ||
| 55 | |||
| 56 | } // namespace Compression | ||