qquickrhiitem.h - mozsearch

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// Copyright (C) 2023 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

// Qt-Security score:significant reason:default

#ifndef QQUICKRHIITEM_H

#define QQUICKRHIITEM_H

#include <QtQuick/QQuickItem>

QT_BEGIN_NAMESPACE

class QQuickRhiItem;

class QQuickRhiItemPrivate;

class QQuickRhiItemNode;

class QRhi;

class QRhiCommandBuffer;

class QRhiTexture;

class QRhiRenderBuffer;

class QRhiRenderTarget;

class Q_QUICK_EXPORT QQuickRhiItemRenderer

public:

    QQuickRhiItemRenderer();

    virtual ~QQuickRhiItemRenderer();

protected:

    virtual void initialize(QRhiCommandBuffer *cb) = 0;

    virtual void synchronize(QQuickRhiItem *item) = 0;

    virtual void render(QRhiCommandBuffer *cb) = 0;

    void update();

    QRhi *rhi() const;

    QRhiTexture *colorTexture() const;

    QRhiRenderBuffer *msaaColorBuffer() const;

    QRhiTexture *resolveTexture() const;

    QRhiRenderBuffer *depthStencilBuffer() const;

    QRhiRenderTarget *renderTarget() const;

private:

    QQuickRhiItemNode *node;

    friend class QQuickRhiItem;

    friend class QQuickRhiItemNode;

    Q_DISABLE_COPY_MOVE(QQuickRhiItemRenderer)

};

class Q_QUICK_EXPORT QQuickRhiItem : public QQuickItem

    Q_OBJECT

    Q_DECLARE_PRIVATE(QQuickRhiItem)

    Q_PROPERTY(int sampleCount READ sampleCount WRITE setSampleCount NOTIFY sampleCountChanged FINAL)

    Q_PROPERTY(TextureFormat colorBufferFormat READ colorBufferFormat WRITE setColorBufferFormat NOTIFY colorBufferFormatChanged FINAL)

    Q_PROPERTY(bool mirrorVertically READ isMirrorVerticallyEnabled WRITE setMirrorVertically NOTIFY mirrorVerticallyChanged FINAL)

    Q_PROPERTY(bool alphaBlending READ alphaBlending WRITE setAlphaBlending NOTIFY alphaBlendingChanged FINAL)

    Q_PROPERTY(int fixedColorBufferWidth READ fixedColorBufferWidth WRITE setFixedColorBufferWidth NOTIFY fixedColorBufferWidthChanged FINAL)

    Q_PROPERTY(int fixedColorBufferHeight READ fixedColorBufferHeight WRITE setFixedColorBufferHeight NOTIFY fixedColorBufferHeightChanged FINAL)

    Q_PROPERTY(QSize effectiveColorBufferSize READ effectiveColorBufferSize NOTIFY effectiveColorBufferSizeChanged FINAL)

public:

    enum class TextureFormat {

        RGBA8,

        RGBA16F,

        RGBA32F,

        RGB10A2

};

    Q_ENUM(TextureFormat)

    explicit QQuickRhiItem(QQuickItem *parent = nullptr);

    ~QQuickRhiItem() override;

    int sampleCount() const;

    void setSampleCount(int samples);

    TextureFormat colorBufferFormat() const;

    void setColorBufferFormat(TextureFormat format);

    bool isMirrorVerticallyEnabled() const;

    void setMirrorVertically(bool enable);

    bool alphaBlending() const;

    void setAlphaBlending(bool enable);

    int fixedColorBufferWidth() const;

    void setFixedColorBufferWidth(int width);

    int fixedColorBufferHeight() const;

    void setFixedColorBufferHeight(int height);

    QSize effectiveColorBufferSize() const;

    bool isTextureProvider() const override;

    QSGTextureProvider *textureProvider() const override;

Q_SIGNALS:

    void sampleCountChanged();

    void colorBufferFormatChanged();

    void autoRenderTargetChanged();

    void mirrorVerticallyChanged();

    void alphaBlendingChanged();

    void fixedColorBufferWidthChanged();

    void fixedColorBufferHeightChanged();

    void effectiveColorBufferSizeChanged();

protected:

    explicit QQuickRhiItem(QQuickRhiItemPrivate &dd, QQuickItem *parent = nullptr);

    virtual QQuickRhiItemRenderer *createRenderer() = 0;

    bool isAutoRenderTargetEnabled() const;

    void setAutoRenderTarget(bool enabled);

    QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *) override;

    bool event(QEvent *) override;

    void geometryChange(const QRectF &newGeometry, const QRectF &oldGeometry) override;

    void releaseResources() override;

private Q_SLOTS:

    void invalidateSceneGraph();

    friend class QQuickRhiItemNode;

};

QT_END_NAMESPACE

#endif // QQUICKRHIITEM_H