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/* Copyright (C) 2002-2005 RealVNC Ltd. 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.
*/
package com.tigervnc.rfb;
import com.tigervnc.rdr.*;
public class CMsgReaderV3 extends CMsgReader {
public CMsgReaderV3(CMsgHandler handler_, InStream is_)
{
super(handler_, is_);
nUpdateRectsLeft = 0;
}
public void readServerInit()
{
int width = is.readU16();
int height = is.readU16();
handler.setDesktopSize(width, height);
PixelFormat pf = new PixelFormat();
pf.read(is);
handler.setPixelFormat(pf);
String name = is.readString();
handler.setName(name);
handler.serverInit();
}
public void readMsg()
{
if (nUpdateRectsLeft == 0) {
int type = is.readU8();
switch (type) {
case MsgTypes.msgTypeFramebufferUpdate: readFramebufferUpdate(); break;
case MsgTypes.msgTypeSetColourMapEntries: readSetColourMapEntries(); break;
case MsgTypes.msgTypeBell: readBell(); break;
case MsgTypes.msgTypeServerCutText: readServerCutText(); break;
case MsgTypes.msgTypeServerFence: readFence(); break;
case MsgTypes.msgTypeEndOfContinuousUpdates: readEndOfContinuousUpdates(); break;
default:
vlog.error("unknown message type "+type);
throw new Exception("unknown message type");
}
} else {
int x = is.readU16();
int y = is.readU16();
int w = is.readU16();
int h = is.readU16();
int encoding = is.readS32();
switch (encoding) {
case Encodings.pseudoEncodingDesktopSize:
handler.setDesktopSize(w, h);
break;
case Encodings.pseudoEncodingExtendedDesktopSize:
readExtendedDesktopSize(x, y, w, h);
break;
case Encodings.pseudoEncodingDesktopName:
readSetDesktopName(x, y, w, h);
break;
case Encodings.pseudoEncodingCursor:
readSetCursor(w, h, new Point(x,y));
break;
case Encodings.pseudoEncodingLastRect:
nUpdateRectsLeft = 1; // this rectangle is the last one
break;
case Encodings.pseudoEncodingClientRedirect:
readClientRedirect(x, y, w, h);
break;
default:
readRect(new Rect(x, y, x+w, y+h), encoding);
break;
}
nUpdateRectsLeft--;
if (nUpdateRectsLeft == 0) handler.framebufferUpdateEnd();
}
}
void readFramebufferUpdate()
{
is.skip(1);
nUpdateRectsLeft = is.readU16();
handler.framebufferUpdateStart();
}
void readSetDesktopName(int x, int y, int w, int h)
{
String name = is.readString();
if (x != 0 || y != 0 || w != 0 || h != 0) {
vlog.error("Ignoring DesktopName rect with non-zero position/size");
} else {
handler.setName(name);
}
}
void readExtendedDesktopSize(int x, int y, int w, int h)
{
int screens, i;
int id, flags;
int sx, sy, sw, sh;
ScreenSet layout = new ScreenSet();
screens = is.readU8();
is.skip(3);
for (i = 0;i < screens;i++) {
id = is.readU32();
sx = is.readU16();
sy = is.readU16();
sw = is.readU16();
sh = is.readU16();
flags = is.readU32();
layout.add_screen(new Screen(id, sx, sy, sw, sh, flags));
}
handler.setExtendedDesktopSize(x, y, w, h, layout);
}
void readFence()
{
int flags;
int len;
byte[] data = new byte[64];
is.skip(3);
flags = is.readU32();
len = is.readU8();
if (len > data.length) {
System.out.println("Ignoring fence with too large payload\n");
is.skip(len);
return;
}
is.readBytes(data, 0, len);
handler.fence(flags, len, data);
}
void readEndOfContinuousUpdates()
{
handler.endOfContinuousUpdates();
}
void readClientRedirect(int x, int y, int w, int h)
{
int port = is.readU16();
String host = is.readString();
String x509subject = is.readString();
if (x != 0 || y != 0 || w != 0 || h != 0) {
vlog.error("Ignoring ClientRedirect rect with non-zero position/size");
} else {
handler.clientRedirect(port, host, x509subject);
}
}
int nUpdateRectsLeft;
static LogWriter vlog = new LogWriter("CMsgReaderV3");
}
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