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/* Copyright (C) 2000-2003 Constantin Kaplinsky. All Rights Reserved.
* Copyright (C) 2011 D. R. Commander. All Rights Reserved.
*
* 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(CMsgReader* reader);
virtual ~TightDecoder();
virtual void readRect(const Rect& r, CMsgHandler* handler);
private:
void tightDecode8(const Rect& r);
void tightDecode16(const Rect& r);
void tightDecode32(const Rect& r);
void DecompressJpegRect8(const Rect& r);
void DecompressJpegRect16(const Rect& r);
void DecompressJpegRect32(const Rect& r);
void FilterGradient8(rdr::U8 *netbuf, rdr::U8* buf, int stride,
const Rect& r);
void FilterGradient16(rdr::U8 *netbuf, rdr::U16* buf, int stride,
const Rect& r);
void FilterGradient24(rdr::U8 *netbuf, rdr::U32* buf, int stride,
const Rect& r);
void FilterGradient32(rdr::U8 *netbuf, rdr::U32* buf, int stride,
const Rect& r);
void directFillRect8(const Rect& r, Pixel pix);
void directFillRect16(const Rect& r, Pixel pix);
void directFillRect32(const Rect& r, Pixel pix);
CMsgHandler* handler;
rdr::InStream* is;
rdr::ZlibInStream zis[4];
JpegDecompressor jd;
PixelFormat clientpf;
PixelFormat serverpf;
bool directDecode;
};
// Compression control
const unsigned int rfbTightExplicitFilter = 0x04;
const unsigned int rfbTightFill = 0x08;
const unsigned int rfbTightJpeg = 0x09;
const unsigned int rfbTightMaxSubencoding = 0x09;
// Filters to improve compression efficiency
const unsigned int rfbTightFilterCopy = 0x00;
const unsigned int rfbTightFilterPalette = 0x01;
const unsigned int rfbTightFilterGradient = 0x02;
}
#endif
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