wgl/window.h

/* Copyright (c) 2005-2012, Stefan Eilemann <eile@equalizergraphics.com>
 *                    2009, Maxim Makhinya
 *
 * 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_WGL_WINDOW_H
#define EQ_WGL_WINDOW_H

#include <eq/glWindow.h>       // base class
#include <eq/gl.h>             // for HPBUFFERARB from wglew.h
#include <eq/wgl/types.h>

namespace eq
{
namespace wgl
{
namespace detail { class Window; }

class WindowIF : public GLWindow
{
public:
    WindowIF( NotifierInterface& parent, const WindowSettings& settings )
        : GLWindow( parent, settings ) {}

    virtual ~WindowIF() {}

    EQ_API virtual HGLRC getWGLContext() const = 0;

    EQ_API virtual HWND getWGLWindowHandle() const = 0;

    EQ_API virtual HPBUFFERARB getWGLPBufferHandle() const = 0;

    EQ_API virtual HDC getWGLDC() const = 0;

    virtual HDC getWGLAffinityDC() { return 0; }

    virtual bool processEvent( EventType type, SizeEvent& event )
        { return GLWindow::processEvent( type, event ); }

    virtual bool processEvent( EventType type, PointerEvent& event )
        { return GLWindow::processEvent( type, event ); }

    virtual bool processEvent( EventType type, KeyEvent& event )
        { return GLWindow::processEvent( type, event ); }

    virtual bool processEvent( EventType type, AxisEvent& event )
        { return GLWindow::processEvent( type, event ); }

    virtual bool processEvent( EventType type, ButtonEvent& event )
        { return GLWindow::processEvent( type, event ); }

    virtual bool processEvent( EventType ) { return false; }
};

class Window : public WindowIF
{
public:
    EQ_API Window( NotifierInterface& parent, const WindowSettings& settings,
                   Pipe& pipe );

    EQ_API virtual ~Window( );

    EQ_API virtual void setWGLContext( HGLRC context );


    EQ_API virtual void setWGLWindowHandle( HWND handle );

    EQ_API virtual void setWGLPBufferHandle( HPBUFFERARB handle );

    EQ_API virtual HWND getWGLWindowHandle() const;

    EQ_API virtual HPBUFFERARB getWGLPBufferHandle() const;

    EQ_API virtual HDC getWGLDC() const;

    EQ_API virtual HGLRC getWGLContext() const;

    EQ_API const EventHandler* getWGLEventHandler() const;

    EQ_API virtual bool configInit();

    EQ_API virtual void configExit( );

    EQ_API virtual bool initWGLAffinityDC();

    EQ_API virtual void exitWGLAffinityDC();

    EQ_API virtual HDC getWGLAffinityDC();

    EQ_API virtual HDC createWGLDisplayDC();

    EQ_API virtual int chooseWGLPixelFormat();

    EQ_API virtual bool configInitWGLDrawable( int pixelFormat );

    EQ_API virtual bool configInitWGLWindow( int pixelFormat );

    EQ_API virtual bool configInitWGLPBuffer( int pixelFormat );

    EQ_API virtual bool configInitWGLFBO( int pixelFormat );

    EQ_API virtual HGLRC createWGLContext();

    EQ_API virtual void destroyWGLContext( HGLRC context );

    EQ_API virtual void initEventHandler();

    EQ_API virtual void exitEventHandler();

    EQ_API virtual void makeCurrent( const bool cache = true ) const;

    EQ_API virtual void doneCurrent() const;

    EQ_API virtual void swapBuffers();

    EQ_API virtual void joinNVSwapBarrier( const uint32_t group,
                                           const uint32_t barrier );


    void leaveNVSwapBarrier();

    EQ_API bool processEvent( EventType type, PointerEvent& event ) override;
    EQ_API bool processEvent( EventType type ) override;

protected:
    EQ_API WGLEWContext* wglewGetContext();

private:
    detail::Window* const _impl;

    HWND _createWGLWindow( const PixelViewport& pvp );

    int _chooseWGLPixelFormatARB( HDC pfDC );

    int _chooseWGLPixelFormat( HDC pfDC );

    void _initSwapSync();
};
}
}
#endif // EQ_WGL_WINDOW_H