FFNetDev-Plugin

git-svn-id: svn://svn.berlios.de/ffnetdev/trunk@1 1f4bef6d-8e0a-0410-8695-e467da8aaccf

1 files changed, 141 insertions, 0 deletions

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+//  Copyright (C) 2001 Constantin Kaplinsky. All Rights Reserved.
+//  Copyright (C) 2000 Tridia Corporation. All Rights Reserved.
+//  Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
+//
+//  This file is part of the VNC system.
+//
+//  The VNC system 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 program 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 program; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+//  USA.
+//
+// TightVNC distribution homepage on the Web: http://www.tightvnc.com/
+//
+// If the source code for the VNC system is not available from the place 
+// whence you received this file, check http://www.uk.research.att.com/vnc or contact
+// the authors on vnc@uk.research.att.com for information on obtaining it.
+
+
+// vncEncoder object
+
+// The vncEncoder object encodes regions of a display buffer for sending
+// to a client
+
+class vncEncoder;
+
+#if !defined(RFBENCODER_DEFINED)
+#define RFBENCODER_DEFINED
+#pragma once
+
+
+typedef unsigned char  BYTE;
+typedef unsigned int   UINT;
+typedef unsigned long  DWORD;
+
+//static
+
+#include "translate.h"
+
+typedef struct {
+    int left;
+    int top;
+    int right;
+    int bottom;
+} RECT;
+
+// Class definition
+
+class vncEncoder
+{
+// Fields
+public:
+
+// Methods
+public:
+	// Create/Destroy methods
+	vncEncoder();
+	virtual ~vncEncoder();
+
+	// Initialisation
+	virtual void Init();
+
+	// A method to return the encoding name, used by the LogStats() method
+	virtual const char* GetEncodingName() { return "Raw"; }
+
+	// Central method for outputing encoding statistics
+	virtual void LogStats();
+
+	// Encoder stats used by the buffer object
+	virtual UINT RequiredBuffSize(UINT width, UINT height);
+	virtual UINT NumCodedRects(RECT &rect);
+
+	// Translation & encoding routines
+	//  - Source is the base address of the ENTIRE SCREEN buffer.
+	//    The Translate routine compensates automatically for the desired rectangle.
+	//  - Dest is the base address to encode the rect to.  The rect will be encoded
+	//    into a contiguous region of the buffer.
+	virtual void Translate(BYTE *source, BYTE *dest, const RECT &rect);
+	virtual UINT EncodeRect(BYTE *source, BYTE *dest, const RECT &rect);
+//	virtual UINT EncodeRect(BYTE *source, VSocket *outConn, BYTE *dest, const RECT &rect);
+
+	// Additional translation function for cursor shape data (overloaded!)
+	void Translate(BYTE *source, BYTE *dest, int w, int h, int bytesPerRow);
+
+	// Translation handling
+	bool SetLocalFormat(rfbPixelFormat &pixformat, int width, int height);
+	bool SetRemoteFormat(rfbPixelFormat &pixformat);
+
+	// Configuring encoder
+	void SetCompressLevel(int level);
+	void SetQualityLevel(int level);
+	void EnableXCursor(bool enable) { m_use_xcursor = enable; }
+	void EnableRichCursor(bool enable) { m_use_richcursor = enable; }
+	void EnableLastRect(bool enable) { m_use_lastrect = enable; }
+
+	// Colour map handling
+//	BOOL GetRemotePalette(RGBQUAD *quadlist, UINT ncolours);
+
+	// Supporting cursor shape updates
+//	BOOL SendEmptyCursorShape(VSocket *outConn);
+//	BOOL SendCursorShape(VSocket *outConn, vncDesktop *desktop);
+
+protected:
+	bool SetTranslateFunction();
+
+	// Supporting cursor shape updates
+//	BOOL SendXCursorShape(VSocket *outConn, BYTE *mask, int xhot,int yhot,int width,int height);
+//	BOOL SendRichCursorShape(VSocket *outConn, BYTE *mbits, BYTE *cbits, int xhot,int yhot,int width,int height);
+	void FixCursorMask(BYTE *mbits, BYTE *cbits, int width, int height, int width_bytes);
+
+// Implementation
+protected:
+	rfbTranslateFnType	m_transfunc;			// Translator function
+	char*				m_transtable;			// Colour translation LUT
+	char*				m_localpalette;			// Palette info if client is palette-based
+	rfbPixelFormat		m_localformat;			// Pixel Format info
+	rfbPixelFormat		m_remoteformat;			// Client pixel format info
+	rfbPixelFormat		m_transformat;			// Internal format used for translation (usually == client format)
+	int					m_bytesPerRow;			// Number of bytes per row locally
+	int					dataSize;				// Total size of raw data encoded
+	int					rectangleOverhead;		// Total size of rectangle header data
+	int					encodedSize;			// Total size of encoded data
+	int					transmittedSize;		// Total amount of data sent
+
+	int					m_compresslevel;		// Encoding-specific compression level (if needed).
+	int					m_qualitylevel;			// Image quality level for lossy JPEG compression.
+	bool				m_use_xcursor;			// XCursor cursor shape updates allowed.
+	bool				m_use_richcursor;		// RichCursor cursor shape updates allowed.
+	bool				m_use_lastrect;			// LastRect pseudo-encoding allowed.
+};
+
+#endif // vncENCODER_DEFINED