ClientConnectionCopyRect.cpp
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// 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.
//
// 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.
//
// CopyRect Encoding
//
// The bits of the ClientConnection object to do with CopyRect.
#include "stdhdrs.h"
#include "vncviewer.h"
#include "ClientConnection.h"
void ClientConnection::ReadCopyRect(rfbFramebufferUpdateRectHeader *pfburh) {
rfbCopyRect cr;
ReadExact((char *) &cr, sz_rfbCopyRect);
cr.srcX = Swap16IfLE(cr.srcX);
cr.srcY = Swap16IfLE(cr.srcY);
// By sure the rect is insite the border memcopy does not like it
if (!Check_Rectangle_borders(pfburh->r.x, pfburh->r.y, pfburh->r.w, pfburh->r.h)) return;
if (!Check_Rectangle_borders(cr.srcX, cr.srcY, pfburh->r.w, pfburh->r.h)) return;
// tight If *Cursor encoding is used, we should extend our "cursor lock area"
// (previously set to destination rectangle) to the source rect as well.
SoftCursorLockArea(cr.srcX, cr.srcY, pfburh->r.w, pfburh->r.h);
if (UltraFast && m_DIBbits)
{
omni_mutex_lock l(m_bitmapdcMutex);
int bytesPerInputRow = m_si.framebufferWidth * m_myFormat.bitsPerPixel/8;
int bytesPerOutputRow = pfburh->r.w * m_myFormat.bitsPerPixel/8;
int OutputHeight=pfburh->r.h;
BYTE *sourcepos,*iptr,*destpos,*optr;
if (cr.srcY<=pfburh->r.y)
{
{
destpos = (BYTE*)m_DIBbits + (bytesPerInputRow * (pfburh->r.y+pfburh->r.h-1))+(pfburh->r.x * m_myFormat.bitsPerPixel/8);
sourcepos = (BYTE*)m_DIBbits + (bytesPerInputRow * (cr.srcY+pfburh->r.h-1))+((cr.srcX) * m_myFormat.bitsPerPixel/8);
iptr=sourcepos;
optr=destpos;
while (OutputHeight > 0) {
memcpy(optr, iptr, bytesPerOutputRow);
iptr -= bytesPerInputRow;
optr -= bytesPerInputRow;
OutputHeight--;
}
}
}
else if (cr.srcY>pfburh->r.y)
{
{
destpos = (BYTE*)m_DIBbits + (bytesPerInputRow * pfburh->r.y)+(pfburh->r.x * m_myFormat.bitsPerPixel/8);
sourcepos = (BYTE*)m_DIBbits + (bytesPerInputRow * (cr.srcY))+((cr.srcX) * m_myFormat.bitsPerPixel/8);
iptr=sourcepos;
optr=destpos;
while (OutputHeight > 0) {
memcpy(optr, iptr, bytesPerOutputRow);
iptr += bytesPerInputRow;
optr += bytesPerInputRow;
OutputHeight--;
}
}
}
}
else
{
omni_mutex_lock l(m_bitmapdcMutex);
ObjectSelector b(m_hBitmapDC, m_hBitmap);
PaletteSelector p(m_hBitmapDC, m_hPalette);
if (!BitBlt(
m_hBitmapDC,pfburh->r.x, pfburh->r.y, pfburh->r.w, pfburh->r.h,
m_hBitmapDC, cr.srcX, cr.srcY, SRCCOPY)) {
vnclog.Print(0, _T("Error in blit in ClientConnection::CopyRect\n"));
}
}
}