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Merge pull request #2093 from FreddyFunk/disk-cache-better-compression

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Better LZ4 compression utilization for the disk based shader cache and the yuzu build system
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bunnei 2019-04-03 21:50:29 -04:00 • committed by GitHub
commit d6374b2522
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7 changed files with 152 additions and 49 deletions
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15
src/core/loader/nso.cpp
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@ -4,11 +4,12 @@
#include <cinttypes>
#include <vector>
#include <lz4.h>
#include "common/common_funcs.h"
#include "common/file_util.h"
#include "common/hex_util.h"
#include "common/logging/log.h"
#include "common/lz4_compression.h"
#include "common/swap.h"
#include "core/core.h"
#include "core/file_sys/patch_manager.h"
@ -35,15 +36,11 @@ static_assert(sizeof(MODHeader) == 0x1c, "MODHeader has incorrect size.");
std::vector<u8> DecompressSegment(const std::vector<u8>& compressed_data,
const NSOSegmentHeader& header) {
std::vector<u8> uncompressed_data(header.size);
const int bytes_uncompressed =
LZ4_decompress_safe(reinterpret_cast<const char*>(compressed_data.data()),
reinterpret_cast<char*>(uncompressed_data.data()),
static_cast<int>(compressed_data.size()), header.size);
const std::vector<u8> uncompressed_data =
Common::Compression::DecompressDataLZ4(compressed_data, header.size);
ASSERT_MSG(bytes_uncompressed == static_cast<int>(header.size) &&
bytes_uncompressed == static_cast<int>(uncompressed_data.size()),
"{} != {} != {}", bytes_uncompressed, header.size, uncompressed_data.size());
ASSERT_MSG(uncompressed_data.size() == static_cast<int>(header.size), "{} != {}", header.size,
uncompressed_data.size());
return uncompressed_data;
}