86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
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// Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
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//
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// This file is part of the VNC system.
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//
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// The VNC system 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 program 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 program; 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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// TightVNC distribution homepage on the Web: http://www.tightvnc.com/
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//
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// If the source code for the VNC system is not available from the place
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// whence you received this file, check http://www.uk.research.att.com/vnc or contact
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// the authors on vnc@uk.research.att.com for information on obtaining it.
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// vncEncodeCoRRE object
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// The vncEncodeCoRRE object uses a compression encoding to send rectangles
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// to a client
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class vncEncodeCoRRE;
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#if !defined(_WINVNC_ENCODECORRRE)
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#define _WINVNC_ENCODECORRE
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#pragma once
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#include "vncEncoder.h"
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// Class definition
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class vncEncodeCoRRE : public vncEncoder
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{
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// Fields
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public:
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// Methods
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public:
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// Create/Destroy methods
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vncEncodeCoRRE();
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~vncEncodeCoRRE();
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virtual void Init();
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virtual const char* GetEncodingName() { return "CoRRE"; }
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virtual UINT RequiredBuffSize(UINT width, UINT height);
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virtual UINT NumCodedRects(RECT &rect);
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virtual UINT EncodeRect(BYTE *source, BYTE *dest, const RECT &rect, int offx, int offy);
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virtual void SetCoRREMax(BYTE width, BYTE height);
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protected:
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virtual UINT InternalEncodeRect(BYTE *source, BYTE *dest, const RECT &rect);
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virtual UINT EncodeSmallRect(BYTE *source, BYTE *dest, const RECT &rect);
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// Implementation
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protected:
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BYTE *m_buffer;
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size_t m_bufflen;
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// Maximum height & width for CoRRE
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int m_maxwidth;
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int m_maxheight;
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// Last-update stats for CoRRE
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UINT m_encodedbytes, m_rectbytes;
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UINT m_lastencodedbytes, m_lastrectbytes;
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int m_maxadjust;
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int m_threshold;
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BOOL m_statsready;
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int offsetx;
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int offsety;
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};
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#endif // _WINVNC_ENCODECORRE
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