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Diffstat (limited to 'rfb/TightEncoder.h')
-rw-r--r-- | rfb/TightEncoder.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/rfb/TightEncoder.h b/rfb/TightEncoder.h new file mode 100644 index 00000000..181db72a --- /dev/null +++ b/rfb/TightEncoder.h @@ -0,0 +1,79 @@ +/* Copyright (C) 2000-2003 Constantin Kaplinsky. 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_TIGHTENCODER_H__ +#define __RFB_TIGHTENCODER_H__ + +#include <rdr/MemOutStream.h> +#include <rdr/ZlibOutStream.h> +#include <rfb/Encoder.h> + +// FIXME: Check if specifying extern "C" is really necessary. +#include <stdio.h> +extern "C" { +#include "jpeg/jpeglib.h" +} + +namespace rfb { + + struct TIGHT_CONF { + unsigned int maxRectSize, maxRectWidth; + unsigned int monoMinRectSize; + int idxZlibLevel, monoZlibLevel, rawZlibLevel; + int idxMaxColorsDivisor; + int jpegQuality; + unsigned long jpegThreshold, jpegThreshold24; + }; + + // + // Compression level stuff. The following array contains various + // encoder parameters for each of 10 compression levels (0..9). + // Last three parameters correspond to JPEG quality levels (0..9). + // + // NOTE: s_conf[9].maxRectSize should be >= s_conf[i].maxRectSize, + // where i in [0..8]. RequiredBuffSize() method depends on this. + // FIXME: Is this comment obsolete? + // + + + class TightEncoder : public Encoder { + public: + static Encoder* create(SMsgWriter* writer); + virtual void setCompressLevel(int level); + virtual void setQualityLevel(int level); + // virtual int getNumRects(const Rect &r); + virtual bool writeRect(const Rect& r, ImageGetter* ig, Rect* actual); + virtual ~TightEncoder(); + + private: + TightEncoder(SMsgWriter* writer); + void writeSubrect(const Rect& r, ImageGetter* ig); + + SMsgWriter* writer; + rdr::MemOutStream mos; + rdr::ZlibOutStream zos[4]; + + static const int defaultCompressLevel; + static const TIGHT_CONF conf[]; + + const TIGHT_CONF* pconf; + const TIGHT_CONF* pjconf; + }; + +} + +#endif |