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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQUICKSHADEREFFECTSOURCE_P_H
#define QQUICKSHADEREFFECTSOURCE_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtQuick/private/qtquickglobal_p.h>
QT_REQUIRE_CONFIG(quick_shadereffect);
#include "qquickitem.h"
#include <QtQuick/qsgtextureprovider.h>
#include <private/qsgadaptationlayer_p.h>
#include <QtQuick/private/qsgcontext_p.h>
#include <private/qsgdefaultinternalimagenode_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_PROPERTY(TextureMirroring textureMirroring READ textureMirroring WRITE setTextureMirroring NOTIFY textureMirroringChanged REVISION(2, 6))
Q_PROPERTY(int samples READ samples WRITE setSamples NOTIFY samplesChanged REVISION(2, 9))
QML_NAMED_ELEMENT(ShaderEffectSource)
QML_ADDED_IN_VERSION(2, 0)
public:
enum WrapMode {
ClampToEdge,
RepeatHorizontally,
RepeatVertically,
Repeat
};
Q_ENUM(WrapMode)
// Equivalents to GL_ALPHA and similar type constants.
enum Format {
Alpha = 0x1906,
RGB = 0x1907,
RGBA = 0x1908
};
Q_ENUM(Format)
enum TextureMirroring {
NoMirroring = 0x00,
MirrorHorizontally = 0x01,
MirrorVertically = 0x02
};
Q_ENUM(TextureMirroring)
QQuickShaderEffectSource(QQuickItem *parent = nullptr);
~QQuickShaderEffectSource() override;
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);
TextureMirroring textureMirroring() const;
void setTextureMirroring(TextureMirroring mirroring);
bool isTextureProvider() const override { return true; }
QSGTextureProvider *textureProvider() const override;
Q_INVOKABLE void scheduleUpdate();
int samples() const;
void setSamples(int count);
Q_SIGNALS:
void wrapModeChanged();
void sourceItemChanged();
void sourceRectChanged();
void textureSizeChanged();
void formatChanged();
void liveChanged();
void hideSourceChanged();
void mipmapChanged();
void recursiveChanged();
void textureMirroringChanged();
void samplesChanged();
void scheduledUpdateCompleted();
private Q_SLOTS:
void sourceItemDestroyed(QObject *item);
void invalidateSceneGraph();
void sourceItemParentChanged(QQuickItem *parent);
protected:
void releaseResources() override;
QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *) override;
void itemGeometryChanged(QQuickItem *item, QQuickGeometryChange change, const QRectF &) override;
void itemChange(ItemChange change, const ItemChangeData &value) override;
private:
void ensureTexture();
QQuickShaderEffectSourceTextureProvider *m_provider;
QSGLayer *m_texture;
WrapMode m_wrapMode;
QQuickItem *m_sourceItem;
QRectF m_sourceRect;
QSize m_textureSize;
Format m_format;
int m_samples;
uint m_live : 1;
uint m_hideSource : 1;
uint m_mipmap : 1;
uint m_recursive : 1;
uint m_grab : 1;
uint m_textureMirroring : 2; // Stores TextureMirroring enum
};
QT_END_NAMESPACE
#endif // QQUICKSHADEREFFECTSOURCE_P_H
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