qvideoframetexturefromsource_p.h

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// Copyright (C) 2024 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

#ifndef QVIDEOFRAMETEXTUREFROMSOURCE_P_H

#define QVIDEOFRAMETEXTUREFROMSOURCE_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 "private/qhwvideobuffer_p.h"

#include "qvideotexturehelper_p.h"

#include <rhi/qrhi.h>

QT_BEGIN_NAMESPACE

namespace QVideoTextureHelper {

using RhiTextureArray = std::array<std::unique_ptr<QRhiTexture>, TextureDescription::maxPlanes>;

class QVideoFrameTexturesFromRhiTextureArray : public QVideoFrameTextures

public:

    explicit QVideoFrameTexturesFromRhiTextureArray(RhiTextureArray &&rhiTextures,

                                                    QVideoFrame sourceFrame = {});

    Q_DISABLE_COPY(QVideoFrameTexturesFromRhiTextureArray)

    ~QVideoFrameTexturesFromRhiTextureArray() override;

    QRhiTexture *texture(uint plane) const override;

    const RhiTextureArray &textureArray() const { return m_rhiTextures; }

    [[nodiscard]] RhiTextureArray takeTextureArray() &&;

private:

    RhiTextureArray m_rhiTextures;

};

class QVideoFrameTexturesFromMemory final : public QVideoFrameTexturesFromRhiTextureArray

public:

    explicit QVideoFrameTexturesFromMemory(RhiTextureArray &&rhiTextures,

                                           QVideoFrame mappedFrame = {});

    Q_DISABLE_COPY(QVideoFrameTexturesFromMemory)

    ~QVideoFrameTexturesFromMemory() override;

    void onFrameEndInvoked() override;

private:

    QVideoFrame m_mappedFrame;

};

class QVideoFrameTexturesFromHandlesSet final : public QVideoFrameTexturesFromRhiTextureArray

public:

    explicit QVideoFrameTexturesFromHandlesSet(RhiTextureArray &&rhiTextures,

                                               QVideoFrameTexturesHandlesUPtr handles,

                                               QVideoFrame sourceFrame = {});

    Q_DISABLE_COPY(QVideoFrameTexturesFromHandlesSet)

    ~QVideoFrameTexturesFromHandlesSet() override;

    [[nodiscard]] QVideoFrameTexturesHandlesUPtr takeHandles() override;

private:

    QVideoFrameTexturesHandlesUPtr m_textureHandles;

};

} // namespace QVideoTextureHelper

QT_END_NAMESPACE

#endif // QVIDEOFRAMETEXTUREFROMSOURCE_P_H