50 lines
1.1 KiB
C++
50 lines
1.1 KiB
C++
/***
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Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.
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File: CompressionInfo.hpp
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Date: 2021-7-14
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Author: Reece
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***/
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#pragma once
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namespace Aurora::Compression
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{
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struct CompressionInfo
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{
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ECompresionType type;
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/// ZSTD: -5 <= level <= 22
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/// recommended: ZSTD_CLEVEL_DEFAULT
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/// LZMA: 0 <= level <= 9
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/// LZ4 : N/A
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/// ZLIB: 0 <= x >= 9
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/// recommended: 6
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/// BZIP: 0 <= x >= 9
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AuInt8 compressionLevel{};
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/// LZMA: 5 <= fb <= 273, default = 32
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AuUInt32 fbWordSize{};
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/// LZMA only
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/// (1 << 12) <= dictSize <= (1 << 27) for 32-bit version
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/// (1 << 12) <= dictSize <= (3 << 29) for 64-bit version
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/// default = (1 << 24)
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AuUInt32 dictSize{};
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// 64KiB is a recommended "small" block size
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AuUInt16 lz4BlockSize {};
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};
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struct DecompressInfo
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{
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ECompresionType alg {ECompresionType::eDeflate};
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DecompressInfo(ECompresionType alg) : alg(alg)
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{
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}
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AuUInt32 internalStreamSize {};
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bool permitResize {};
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};
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} |