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47ed8d321c
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@2 3789f03b-4d11-0410-bbf8-ca57d06f2519
54 lines
1.9 KiB
C++
54 lines
1.9 KiB
C++
/* Copyright (C) 2002-2004 RealVNC Ltd. All Rights Reserved.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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#ifndef __RFB_ZRLEENCODER_H__
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#define __RFB_ZRLEENCODER_H__
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#include <rdr/MemOutStream.h>
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#include <rdr/ZlibOutStream.h>
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#include <rfb/Encoder.h>
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namespace rfb {
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class ZRLEEncoder : public Encoder {
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public:
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static Encoder* create(SMsgWriter* writer);
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virtual bool writeRect(const Rect& r, ImageGetter* ig, Rect* actual);
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virtual ~ZRLEEncoder();
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// setMaxLen() sets the maximum size in bytes of any ZRLE rectangle. This
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// can be used to stop the MemOutStream from growing too large. The value
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// must be large enough to allow for at least one row of ZRLE tiles. So
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// for example for a screen width of 2048 32-bit pixels this is 2K*4*64 =
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// 512Kbytes plus a bit of overhead.
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static void setMaxLen(int m) { maxLen = m; }
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// setSharedMos() sets a MemOutStream to be shared amongst all
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// ZRLEEncoders. Should be called before any ZRLEEncoders are created.
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static void setSharedMos(rdr::MemOutStream* mos_) { sharedMos = mos_; }
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private:
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ZRLEEncoder(SMsgWriter* writer);
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SMsgWriter* writer;
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rdr::ZlibOutStream zos;
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rdr::MemOutStream* mos;
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static rdr::MemOutStream* sharedMos;
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static int maxLen;
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};
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}
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#endif
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