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/***************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (directui@nokia.com)
**
** This file is part of mcompositor.
**
** If you have questions regarding the use of this file, please contact
** Nokia at directui@nokia.com.
**
** 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
** and appearing in the file LICENSE.LGPL included in the packaging
** of this file.
**
****************************************************************************/
#ifndef DUITEXTUREPIXMAPITEM_H
#define DUITEXTUREPIXMAPITEM_H
#include "mcompositewindow.h"
#include "mtexturepixmapitem_p.h"
#include <QtOpenGL>
#include <QPixmap>
#include <X11/Xutil.h>
class MTexturePixmapPrivate;
/*!
* MTexturePixmapItem represents an offscreen pixmap that is rendered
* directly as a texture. The texture is drawn as an item in a
* QGraphicsView directly using standard OpenGL / OpenGL ES2 calls without
* the use of QPainter.
*
* If an GLX or EGL pixmap surface that supports render to texture is not found, the
* renderer defaults to its own custom texture to pixmap routines
*
*/
class MTexturePixmapItem: public MCompositeWindow
{
public:
/*!
* Constructs a MTexturePixmapItem
*
* \param window the redirected window where the texture is derived.
* \param mpc window property cache
* \param parent QGraphicsItem, defaults to 0
*/
MTexturePixmapItem(Window window, MWindowPropertyCache *mpc,
QGraphicsItem *parent = 0);
/*!
* Destroys the MTexturePixmapItem and frees the allocated
* surface and texture
*/
virtual ~MTexturePixmapItem();
/*!
* Ensures that the corresponding texture reflects the contents of the
* associated pixmap and schedules a redraw of this item.
*/
void updateWindowPixmap(XRectangle *rects = 0, int num = 0);
/*!
* Recreates the pixmap id and saves the offscreen buffer that represents
* this window. This will update the offscreen backing store.
*/
void saveBackingStore();
/*!
Clears the texture that is associated with the offscreen pixmap
*/
void clearTexture();
/*!
Returns true if the window corresponding to the offscreen pixmap
is rendering directly to the framebuffer, otherwise return false.
*/
bool isDirectRendered() const;
/*!
* Sets the width and height if the item
*/
void resize(int w, int h);
void enableDirectFbRendering();
void enableRedirectedRendering();
Pixmap windowPixmap() const { return d->windowp; }
protected:
void paint(QPainter *painter,
const QStyleOptionGraphicsItem *option,
QWidget *widget);
QSizeF sizeHint(Qt::SizeHint, const QSizeF &) const;
QRectF boundingRect() const;
virtual void windowRaised();
private:
void init();
void initCustomTfp();
void cleanup();
void rebindPixmap();
void doTFP();
MTexturePixmapPrivate *const d;
friend class MTexturePixmapPrivate;
friend class MCompositeManagerPrivate;
friend class MCompositeWindowShaderEffect;
};
#endif // DUIGLXTEXTUREPIXMAPITEM_H
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