qmediaenginevideobuffer.cpp

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// 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

#include "qmediaenginevideobuffer_p.h"

#include <QtMultimedia/private/qvideotexturehelper_p.h>

#include <QtMultimedia/qvideoframeformat.h>

QT_BEGIN_NAMESPACE

QMediaEngineVideoBuffer::QMediaEngineVideoBuffer(

        ComPtr<ID3D11Texture2D> texture, ComPtr<ID3D11Device> engineDevice, QSize frameSize,

        std::shared_ptr<QtMultimediaPrivate::QWindowsD3D11RhiTextureImporter> importer)

    : m_texture(std::move(texture)),

      m_engineDevice(std::move(engineDevice)),

      m_frameSize(frameSize),

      m_importer(std::move(importer))

QMediaEngineVideoBuffer::~QMediaEngineVideoBuffer() = default;

QVideoFrameTexturesUPtr

QMediaEngineVideoBuffer::mapTextures(QRhi &rhi, QVideoFrameTexturesUPtr & /*oldTextures*/)

    if (!m_importer)

        return nullptr;

    ComPtr<ID3D11DeviceContext> engineCtx;

    m_engineDevice->GetImmediateContext(&engineCtx);

    QVideoFrameTexturesHandlesUPtr handles = m_importer->importTexture(

            rhi, m_engineDevice.Get(), engineCtx.Get(), m_texture, m_frameSize,

            QVideoFrameFormat::Format_BGRA8888);

    if (!handles)

        return nullptr;

    return QVideoTextureHelper::createTexturesFromHandles(

            std::move(handles), rhi, QVideoFrameFormat::Format_BGRA8888, m_frameSize);

QAbstractVideoBuffer::MapData QMediaEngineVideoBuffer::map(QVideoFrame::MapMode mode)

    if (mode != QVideoFrame::ReadOnly)

        return {};

    return m_readback.map(m_engineDevice, m_texture, m_frameSize);

void QMediaEngineVideoBuffer::unmap()

    m_readback.unmap();

QT_END_NAMESPACE