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authorConstantin Kaplinsky <const@tightvnc.com>2006-05-25 05:01:55 +0000
committerConstantin Kaplinsky <const@tightvnc.com>2006-05-25 05:01:55 +0000
commita2adc8d4cfdf7336ce9192414c5e775224742a97 (patch)
tree0fc9f229bd40a2de342d91338798033da8ebd7bc /common/rfb/TightEncoder.h
parent4fc2026b9595e9425f50616d18781995aebe495b (diff)
downloadtigervnc-a2adc8d4cfdf7336ce9192414c5e775224742a97.tar.gz
tigervnc-a2adc8d4cfdf7336ce9192414c5e775224742a97.zip
Migrating to new directory structure adopted from the RealVNC's source tree. More changes will follow.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@589 3789f03b-4d11-0410-bbf8-ca57d06f2519
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+/* 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;
+ };
+
+ //
+ // 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