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/* Copyright (C) 2000-2003 Constantin Kaplinsky. All Rights Reserved.
* Copyright (C) 2011 D. R. Commander. All Rights Reserved.
* Copyright 2009-2022 Pierre Ossman for Cendio AB
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#ifndef __RFB_TIGHTDECODER_H__
#define __RFB_TIGHTDECODER_H__
#include <rdr/ZlibInStream.h>
#include <rfb/Decoder.h>
#include <rfb/JpegDecompressor.h>
namespace rfb {
class TightDecoder : public Decoder {
public:
TightDecoder();
virtual ~TightDecoder();
virtual bool readRect(const Rect& r, rdr::InStream* is,
const ServerParams& server, rdr::OutStream* os);
virtual bool doRectsConflict(const Rect& rectA,
const void* bufferA,
size_t buflenA,
const Rect& rectB,
const void* bufferB,
size_t buflenB,
const ServerParams& server);
virtual void decodeRect(const Rect& r, const void* buffer,
size_t buflen, const ServerParams& server,
ModifiablePixelBuffer* pb);
private:
uint32_t readCompact(rdr::InStream* is);
void FilterGradient24(const uint8_t* inbuf, const PixelFormat& pf,
uint32_t* outbuf, int stride, const Rect& r);
template<class T>
void FilterGradient(const uint8_t* inbuf, const PixelFormat& pf,
T* outbuf, int stride, const Rect& r);
template<class T>
void FilterPalette(const T* palette, int palSize,
const uint8_t* inbuf, T* outbuf,
int stride, const Rect& r);
private:
rdr::ZlibInStream zis[4];
};
}
#endif
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