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/* Copyright (C) 2002-2005 RealVNC Ltd. 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_ENCODER_H__
#define __RFB_ENCODER_H__
#include <rfb/Rect.h>
#include <rfb/encodings.h>
#include <rfb/TransImageGetter.h>
#include <rfb/JpegCompressor.h>
namespace rfb {
class SMsgWriter;
class Encoder;
class ImageGetter;
typedef Encoder* (*EncoderCreateFnType)(SMsgWriter*);
class Encoder {
public:
virtual ~Encoder();
virtual void setCompressLevel(int level) {};
virtual void setQualityLevel(int level) {};
virtual void setFineQualityLevel(int quality, JPEG_SUBSAMP subsampling) {};
virtual int getNumRects(const Rect &r) { return 1; }
// writeRect() tries to write the given rectangle. If it is unable to
// write the whole rectangle it returns false and sets actual to the actual
// rectangle which was updated.
virtual bool writeRect(const Rect& r, TransImageGetter* ig,
Rect* actual)=0;
static bool supported(int encoding);
static Encoder* createEncoder(int encoding, SMsgWriter* writer);
static void registerEncoder(int encoding,
EncoderCreateFnType createFn);
static void unregisterEncoder(int encoding);
private:
static EncoderCreateFnType createFns[encodingMax+1];
};
class EncoderInit {
static int count;
public:
EncoderInit();
};
static EncoderInit encoderInitObj;
}
#endif
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