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