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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQUICKSHADEREFFECTSOURCE_P_H
#define QQUICKSHADEREFFECTSOURCE_P_H
#include "qquickitem.h"
#include <QtQuick/qsgtextureprovider.h>
#include <private/qsgadaptationlayer_p.h>
#include <QtQuick/private/qsgcontext_p.h>
#include <private/qsgdefaultimagenode_p.h>
#include <private/qquickitemchangelistener_p.h>
#include "qpointer.h"
#include "qsize.h"
#include "qrect.h"
QT_BEGIN_NAMESPACE
class QSGNode;
class UpdatePaintNodeData;
class QOpenGLFramebufferObject;
class QSGSimpleRectNode;
class QQuickShaderEffectSourceTextureProvider;
class Q_QUICK_PRIVATE_EXPORT QQuickShaderEffectSource : public QQuickItem, public QQuickItemChangeListener
{
Q_OBJECT
Q_PROPERTY(WrapMode wrapMode READ wrapMode WRITE setWrapMode NOTIFY wrapModeChanged)
Q_PROPERTY(QQuickItem *sourceItem READ sourceItem WRITE setSourceItem NOTIFY sourceItemChanged)
Q_PROPERTY(QRectF sourceRect READ sourceRect WRITE setSourceRect NOTIFY sourceRectChanged)
Q_PROPERTY(QSize textureSize READ textureSize WRITE setTextureSize NOTIFY textureSizeChanged)
Q_PROPERTY(Format format READ format WRITE setFormat NOTIFY formatChanged)
Q_PROPERTY(bool live READ live WRITE setLive NOTIFY liveChanged)
Q_PROPERTY(bool hideSource READ hideSource WRITE setHideSource NOTIFY hideSourceChanged)
Q_PROPERTY(bool mipmap READ mipmap WRITE setMipmap NOTIFY mipmapChanged)
Q_PROPERTY(bool recursive READ recursive WRITE setRecursive NOTIFY recursiveChanged)
Q_ENUMS(Format WrapMode)
public:
enum WrapMode {
ClampToEdge,
RepeatHorizontally,
RepeatVertically,
Repeat
};
enum Format {
Alpha = GL_ALPHA,
RGB = GL_RGB,
RGBA = GL_RGBA
};
QQuickShaderEffectSource(QQuickItem *parent = 0);
~QQuickShaderEffectSource();
WrapMode wrapMode() const;
void setWrapMode(WrapMode mode);
QQuickItem *sourceItem() const;
void setSourceItem(QQuickItem *item);
QRectF sourceRect() const;
void setSourceRect(const QRectF &rect);
QSize textureSize() const;
void setTextureSize(const QSize &size);
Format format() const;
void setFormat(Format format);
bool live() const;
void setLive(bool live);
bool hideSource() const;
void setHideSource(bool hide);
bool mipmap() const;
void setMipmap(bool enabled);
bool recursive() const;
void setRecursive(bool enabled);
bool isTextureProvider() const { return true; }
QSGTextureProvider *textureProvider() const;
Q_INVOKABLE void scheduleUpdate();
Q_SIGNALS:
void wrapModeChanged();
void sourceItemChanged();
void sourceRectChanged();
void textureSizeChanged();
void formatChanged();
void liveChanged();
void hideSourceChanged();
void mipmapChanged();
void recursiveChanged();
void scheduledUpdateCompleted();
private Q_SLOTS:
void sourceItemDestroyed(QObject *item);
void invalidateSG();
protected:
virtual void releaseResources();
virtual QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *);
virtual void itemGeometryChanged(QQuickItem *item, const QRectF &newRect, const QRectF &oldRect);
virtual void itemChange(ItemChange change, const ItemChangeData &value);
private:
void ensureTexture();
QQuickShaderEffectSourceTextureProvider *m_provider;
QSGLayer *m_texture;
WrapMode m_wrapMode;
QQuickItem *m_sourceItem;
QRectF m_sourceRect;
QSize m_textureSize;
Format m_format;
uint m_live : 1;
uint m_hideSource : 1;
uint m_mipmap : 1;
uint m_recursive : 1;
uint m_grab : 1;
};
QT_END_NAMESPACE
#endif // QQUICKSHADEREFFECTSOURCE_P_H
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