qwindowsd3d11videoprocessor_p.h

Enable keyboard shortcuts

// Copyright (C) 2026 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 QWINDOWSD3D11VIDEOPROCESSOR_P_H

#define QWINDOWSD3D11VIDEOPROCESSOR_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 <QtMultimedia/qtmultimediaexports.h>

#include <QtMultimedia/qvideoframeformat.h>

#include <QtCore/qsize.h>

#include <QtCore/private/qcomptr_p.h>

#include <d3d11.h>

#include <d3d11_1.h>

QT_BEGIN_NAMESPACE

namespace QtMultimediaPrivate {

/*! \internal

    Converts an NV12 or P010 D3D11 texture into a BGRA8 texture on the same D3D11 device, using

    the fixed-function ID3D11VideoProcessor. Single-plane output is required for import into

    non-D3D11 QRhi backends (see QWindowsD3D11RhiTextureImporter). HDR input is tone-mapped to

    SDR by the processor; the output is always 8-bit BGRA8.

*/

class Q_MULTIMEDIA_EXPORT QWindowsD3D11VideoProcessor

public:

    QWindowsD3D11VideoProcessor();

    ~QWindowsD3D11VideoProcessor();

    Q_DISABLE_COPY_MOVE(QWindowsD3D11VideoProcessor)

    static bool isPixelFormatSupported(QVideoFrameFormat::PixelFormat);

    // Converts slice 'subresourceIndex' of 'texture' to BGRA8 on the same device.

    ComPtr<ID3D11Texture2D> convertToBGRA(ID3D11Device *, ID3D11DeviceContext *context,

                                          const ComPtr<ID3D11Texture2D> &texture,

                                          const QSize &frameSize,

                                          QVideoFrameFormat::ColorSpace colorSpace,

                                          QVideoFrameFormat::ColorRange colorRange,

                                          QVideoFrameFormat::ColorTransfer colorTransfer,

                                          UINT subresourceIndex = 0);

private:

    bool ensureVideoProcessor(ID3D11Device *, const QSize &frameSize);

    bool ensureOutputTexture(ID3D11Device *, const QSize &frameSize);

    ComPtr<ID3D11VideoDevice> m_videoDevice;

    ComPtr<ID3D11VideoContext1> m_videoContext;

    ComPtr<ID3D11VideoProcessorEnumerator> m_enumerator;

    ComPtr<ID3D11VideoProcessor> m_videoProcessor;

    QSize m_processorSize;

    ComPtr<ID3D11Texture2D> m_outputTex;

    ComPtr<ID3D11VideoProcessorOutputView> m_outputView;

};

} // namespace QtMultimediaPrivate

QT_END_NAMESPACE

#endif // QWINDOWSD3D11VIDEOPROCESSOR_P_H