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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