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/* Copyright (C) 2007-2008 Constantin Kaplinsky. 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.
*/
//
// XPixelBuffer.h
//
#ifndef __XPIXELBUFFER_H__
#define __XPIXELBUFFER_H__
#include <rfb/PixelBuffer.h>
#include <rfb/VNCServer.h>
#include <x0vncserver/Image.h>
#include <x0vncserver/PollingManager.h>
//
// XPixelBuffer is an Image-based implementation of FullFramePixelBuffer.
//
class XPixelBuffer : public rfb::FullFramePixelBuffer
{
public:
XPixelBuffer(Display *dpy, ImageFactory &factory, const rfb::Rect &rect);
virtual ~XPixelBuffer();
// Provide access to the underlying Image object.
const Image *getImage() const { return m_image; }
// Detect changed pixels, notify the server.
inline void poll(rfb::VNCServer *server) { m_poller->poll(server); }
// Override PixelBuffer::grabRegion().
void grabRegion(const rfb::Region& region) override;
protected:
PollingManager *m_poller;
Display *m_dpy;
Image* m_image;
int m_offsetLeft;
int m_offsetTop;
// Copy pixels from the screen to the pixel buffer,
// for the specified rectangular area of the buffer.
inline void grabRect(const rfb::Rect &r) {
m_image->get(DefaultRootWindow(m_dpy),
m_offsetLeft + r.tl.x, m_offsetTop + r.tl.y,
r.width(), r.height(), r.tl.x, r.tl.y);
}
};
#endif // __XPIXELBUFFER_H__
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