cfb972f944
- Overriding methods are clearly indicated with `override` keywords - Remove redundant `virtual` keywords from destructors of subclasses - Introduce `SPUnsupported()`, replacing most uses of `SPNotImplemented()`, which now serves as a dynamic "TODO" marker
76 lines
1.8 KiB
C++
76 lines
1.8 KiB
C++
/*
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Copyright (c) 2013 yvt
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This file is part of OpenSpades.
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OpenSpades is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenSpades is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OpenSpades. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <vector>
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#include <zlib.h>
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#include "IStream.h"
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namespace spades {
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class DeflateStream : public IStream {
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IStream *baseStream;
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CompressMode mode;
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z_stream zstream;
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bool autoClose;
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bool valid;
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uint64_t position;
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// when compressing:
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// input buffer
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// when decompressing:
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// output buffer
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std::vector<char> buffer;
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// input buffer that wasn't used in FillBuffer
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// is stored here
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std::vector<char> nextbuffer;
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// decompression only
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bool reachedEOF;
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size_t bufferPos;
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void CompressBuffer();
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void FillBuffer();
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public:
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DeflateStream(IStream *stream, CompressMode mode, bool autoClose = false);
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~DeflateStream();
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int ReadByte() override;
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size_t Read(void *, size_t bytes) override;
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void WriteByte(int) override;
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void Write(const void *, size_t bytes) override;
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uint64_t GetPosition() override;
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void SetPosition(uint64_t) override;
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uint64_t GetLength() override;
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void SetLength(uint64_t) override;
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/** Must be called when all data was written, in case of compressing, or output will be
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* corrupted */
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void DeflateEnd();
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};
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}
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