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Constantin Kaplinsky2c019832008-05-30 11:02:04 +00001/* Copyright (C) 2007-2008 Constantin Kaplinsky. All Rights Reserved.
Constantin Kaplinsky614c7b52007-12-26 18:17:09 +00002 *
3 * This is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation; either version 2 of the License, or
6 * (at your option) any later version.
7 *
8 * This software is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this software; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
16 * USA.
17 */
18
19//
20// XPixelBuffer.h
21//
22
23#ifndef __XPIXELBUFFER_H__
24#define __XPIXELBUFFER_H__
25
26#include <rfb/PixelBuffer.h>
Constantin Kaplinsky936c3692007-12-27 08:42:53 +000027#include <x0vncserver/Image.h>
Constantin Kaplinsky614c7b52007-12-26 18:17:09 +000028
29using namespace rfb;
30
31//
Constantin Kaplinsky936c3692007-12-27 08:42:53 +000032// XPixelBuffer is an Image-based implementation of FullFramePixelBuffer.
Constantin Kaplinsky614c7b52007-12-26 18:17:09 +000033//
34
35class XPixelBuffer : public FullFramePixelBuffer
36{
37public:
Constantin Kaplinskye0c80c52008-06-04 03:10:05 +000038 XPixelBuffer(Display *dpy, ImageFactory &factory,
Constantin Kaplinskyf773a8e2008-06-04 04:30:10 +000039 const Rect &rect, ColourMap* cm);
Constantin Kaplinsky936c3692007-12-27 08:42:53 +000040 virtual ~XPixelBuffer();
Constantin Kaplinsky614c7b52007-12-26 18:17:09 +000041
Constantin Kaplinsky2c019832008-05-30 11:02:04 +000042 // We allow public access to the underlying Image object.
43 // The image is heavily used by the PollingManager.
44 // TODO: Allow read-only (const Image *) access only.
45 // Or better do not allow public access at all.
46 virtual Image *getImage() const { return m_image; }
47
Constantin Kaplinskye0c80c52008-06-04 03:10:05 +000048 // Override PixelBuffer::getStride().
Constantin Kaplinsky936c3692007-12-27 08:42:53 +000049 virtual int getStride() const { return m_stride; }
Constantin Kaplinsky614c7b52007-12-26 18:17:09 +000050
Constantin Kaplinskye0c80c52008-06-04 03:10:05 +000051 // Override PixelBuffer::grabRegion().
Constantin Kaplinskyb3530d42007-12-26 19:17:02 +000052 virtual void grabRegion(const rfb::Region& region);
53
Constantin Kaplinsky614c7b52007-12-26 18:17:09 +000054protected:
Constantin Kaplinsky936c3692007-12-27 08:42:53 +000055 Display *m_dpy;
56 Image* m_image;
57 int m_offsetLeft;
58 int m_offsetTop;
59
60 // The number of pixels in a row, with padding included.
61 int m_stride;
Constantin Kaplinsky429ea962008-06-02 11:56:57 +000062
63 // Copy pixels from the screen to the pixel buffer,
64 // for the specified rectangular area of the buffer.
65 inline void grabRect(const Rect &r) {
66 m_image->get(DefaultRootWindow(m_dpy),
67 m_offsetLeft + r.tl.x, m_offsetTop + r.tl.y,
68 r.width(), r.height(), r.tl.x, r.tl.y);
69 }
Constantin Kaplinsky614c7b52007-12-26 18:17:09 +000070};
71
72#endif // __XPIXELBUFFER_H__
73