mirror of
https://github.com/aaru-dps/Aaru.Compression.Native.git
synced 2026-04-23 06:22:15 +00:00
Natalia Portillo
12a4d684f5
- Implement Deflate64 decompression in zip/deflate64.h and zip/deflate64.c. - Add ZIP Implode decompression functionality in zip/implode.h and zip/implode.c. - Introduce ZIP Reduce decompression in zip/reduce.h and zip/reduce.c. - Implement ZIP Shrink decompression in zip/shrink.h and zip/shrink.c. - Create a unified ZIP interface in zip/zip.h and zip/zip.c to handle multiple compression methods including PPMd, WavPack, and WinZip JPEG. - Ensure all new functions adhere to the Aaru Data Preservation Suite licensing and documentation standards.
51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/*
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* RangeCoder.h
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*
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* Copyright (c) 2017-present, MacPaw Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#ifndef __PPMD_RANGE_CODER_H__
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#define __PPMD_RANGE_CODER_H__
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#include <stdbool.h>
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#include <stdint.h>
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typedef int PPMdReadFunction(void *context);
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typedef struct PPMdRangeCoder
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{
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PPMdReadFunction *readfunc;
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void *inputcontext;
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uint32_t low, code, range, bottom;
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bool uselow;
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} PPMdRangeCoder;
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void InitializePPMdRangeCoder(PPMdRangeCoder *self, PPMdReadFunction *readfunc, void *inputcontext, bool uselow,
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int bottom);
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uint32_t PPMdRangeCoderCurrentCount(PPMdRangeCoder *self, uint32_t scale);
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void RemovePPMdRangeCoderSubRange(PPMdRangeCoder *self, uint32_t lowcount, uint32_t highcount);
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int NextWeightedBitFromPPMdRangeCoder(PPMdRangeCoder *self, int weight, int size);
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int NextWeightedBitFromPPMdRangeCoder2(PPMdRangeCoder *self, int weight, int shift);
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void NormalizePPMdRangeCoder(PPMdRangeCoder *self);
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#endif
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