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/* Copyright (C) 2000-2003 Constantin Kaplinsky. All Rights Reserved.
* Copyright (C) 2011 D. R. Commander
* Copyright 2014-2022 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_TIGHTENCODER_H__
#define __RFB_TIGHTENCODER_H__
#include <rdr/MemOutStream.h>
#include <rdr/ZlibOutStream.h>
#include <rfb/Encoder.h>
namespace rfb {
class TightEncoder : public Encoder {
public:
TightEncoder(SConnection* conn);
virtual ~TightEncoder();
bool isSupported() override;
void setCompressLevel(int level) override;
void writeRect(const PixelBuffer* pb,
const Palette& palette) override;
void writeSolidRect(int width, int height, const PixelFormat& pf,
const uint8_t* colour) override;
protected:
void writeMonoRect(const PixelBuffer* pb, const Palette& palette);
void writeIndexedRect(const PixelBuffer* pb, const Palette& palette);
void writeFullColourRect(const PixelBuffer* pb);
void writePixels(const uint8_t* buffer, const PixelFormat& pf,
unsigned int count, rdr::OutStream* os);
void writeCompact(rdr::OutStream* os, uint32_t value);
rdr::OutStream* getZlibOutStream(int streamId, int level, size_t length);
void flushZlibOutStream(rdr::OutStream* os);
protected:
// Templated, optimised methods
template<class T>
void writeMonoRect(int width, int height,
const T* buffer, int stride,
const PixelFormat& pf, const Palette& palette);
template<class T>
void writeIndexedRect(int width, int height,
const T* buffer, int stride,
const PixelFormat& pf, const Palette& palette);
rdr::ZlibOutStream zlibStreams[4];
rdr::MemOutStream memStream;
int idxZlibLevel, monoZlibLevel, rawZlibLevel;
};
}
#endif
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