xvdisplayer.hpp

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/*
  XVDISPLAYER.hpp  -  XVideo display

  Copyright (C)         Lumiera.org
    2000,               Arne Schirmacher <arne@schirmacher.de>
    2001-2007,          Dan Dennedy <dan@dennedy.org>
    2008,               Joel Holdsworth <joel@airwebreathe.org.uk>

  This program 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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/


#ifndef STAGE_OUTPUT_XVDISPLAYER_H
#define STAGE_OUTPUT_XVDISPLAYER_H


#include "stage/output/displayer.hpp"
#include "stage/gtk-base.hpp"

#include <X11/Xlib.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <X11/extensions/XShm.h>
#include <X11/extensions/Xvlib.h>


namespace Gtk {
  class Widget;
}

namespace stage {
namespace output {
  
  class XvDisplayer 
    : public Displayer
    {
    public:
      XvDisplayer (Gtk::Widget *drawing_area, int width, int height);
      
     ~XvDisplayer();
      
      
      void put (void* const image);
      
      bool usable();
      
    private:
      
      bool gotPort;
      
      unsigned int grabbedPort;
      
      Gtk::Widget *drawingArea;
      
      Display *display;
      
      Window window;
      
      GC gc;
      
      XvImage *xvImage;
      
      XShmSegmentInfo shmInfo;
    };
  
  
}}   // namespace stage::output
#endif // XVDISPLAYER_HPP