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47 lines
1.9 KiB
C++
47 lines
1.9 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#pragma once
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#include <AzCore/Memory/SystemAllocator.h>
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#include <AzNetworking/Framework/ICompressor.h>
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namespace MultiplayerCompression
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{
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static const char* CompressorName = "LZ4";
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static const AzNetworking::CompressorType CompressorType = aznumeric_cast<AzNetworking::CompressorType>(static_cast<AZ::u32>(AZ::Crc32(CompressorName)));
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/**
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* Implements an LZ4 Compressor against GridMate's Compressor interface for use with the Multiplayer Gem.
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* Handles edge and error cases specific to LZ4 that are otherwise not covered in GridMate Carrier
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* (where a Compressor is applied).
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*/
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class LZ4Compressor
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: public AzNetworking::ICompressor
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{
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public:
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AZ_CLASS_ALLOCATOR(LZ4Compressor, AZ::SystemAllocator, 0);
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LZ4Compressor() = default;
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const char* GetName() const { return CompressorName; }
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AzNetworking::CompressorType GetType() const { return CompressorType; };
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bool Init() { return true; }
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size_t GetMaxChunkSize(size_t maxCompSize) const;
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size_t GetMaxCompressedBufferSize(size_t uncompSize) const;
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AzNetworking::CompressorError Compress(const void* uncompData, size_t uncompSize, void* compData, size_t compDataSize, size_t& compSize);
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AzNetworking::CompressorError Decompress(const void* compData, size_t compDataSize, void* uncompData, size_t uncompDataSize, size_t& consumedSize, size_t& uncompSize);
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};
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}
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