wgl/window.h

/* Copyright (c) 2005-2017, Stefan Eilemann <eile@equalizergraphics.com>
 *                          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/os.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 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(AxisEvent& event)
    {
        return GLWindow::processEvent(event);
    }

    virtual bool processEvent(ButtonEvent& event)
    {
        return GLWindow::processEvent(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 HWND getWGLWindowHandle() 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 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();
    void _resize(const PixelViewport& pvp) override;
};
}
}
#endif // EQ_WGL_WINDOW_H