osWindow.h

/* Copyright (c) 2005-2009, Stefan Eilemann <eile@equalizergraphics.com>
 *                        , Makhinya Maxim
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License version 2.1 as published
 * by the Free Software Foundation.
 *  
 * This library 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 Lesser General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef EQ_OS_WINDOW_H
#define EQ_OS_WINDOW_H

#include <eq/client/types.h>
#include <eq/client/window.h>         // Window::IAttribute enum
#include <eq/client/windowSystem.h>   // GLEWContext

namespace eq
{
    class FrameBufferObject;

    class EQ_EXPORT OSWindow
    {
    public:
        OSWindow( Window* parent );
        virtual ~OSWindow( );
        
        virtual bool configInit( ) = 0;

        virtual void configExit( ) = 0;

        virtual void makeCurrent() const;

        virtual void bindFrameBuffer() const;

        virtual void swapBuffers() = 0;

        virtual void joinNVSwapBarrier( const uint32_t group,
                                        const uint32_t barrier ) = 0;

        bool configInitFBO();

        void configExitFBO();

        const FrameBufferObject* getFBO() const { return _fbo; }

        Window* getWindow() { return _window; }
        const Window* getWindow() const { return _window; }

        Pipe* getPipe(); 
        const Pipe* getPipe() const;

        Node* getNode(); 
        const Node* getNode() const;

        Config* getConfig();
        const Config* getConfig() const;

        int32_t getIAttribute( const Window::IAttribute attr ) const;

        WGLEWContext* wglewGetContext();
     
        void initGLEW(); 
        
        void exitGLEW() { _glewInitialized = false; }

        GLEWContext* glewGetContext() { return _glewContext; }
        const GLEWContext* glewGetContext() const { return _glewContext; }

    protected:
        Window* const _window;
        
    private:
        GLEWContext*   _glewContext; 
        
        bool _glewInitialized ;
        
        FrameBufferObject* _fbo; 

        union // placeholder for binary-compatible changes
        {
            char dummy[64];
        };
    };
}


#endif // EQ_OS_WINDOW_H