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LibCompress: Add LibCompress

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For now this only contains DEFLATE, and a very simple Zlib
Eventually GZip, etc. can go here as well.
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stelar7 2020-08-01 22:01:39 +02:00 • committed by Andreas Kling
parent 567845c480
commit 98e18d7339
9 changed files with 764 additions and 1 deletions
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52
Libraries/LibCompress/Zlib.h Normal file
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/*
* Copyright (c) 2020, the SerenityOS developers
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/Span.h>
#include <AK/Types.h>
#include <AK/Vector.h>
namespace Compress {
class Zlib {
public:
Zlib(ReadonlyBytes data);
Vector<u8> decompress();
u32 checksum();
private:
u8 m_compression_method;
u8 m_compression_info;
u8 m_check_bits;
u8 m_has_dictionary;
u8 m_compression_level;
u32 m_checksum;
ReadonlyBytes m_input_data;
ReadonlyBytes m_data_bytes;
};
}