qvideoframetexturepool.cpp

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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

++

++ #include "qvideoframetexturepool_p.h"

++

++ #include <QtMultimedia/private/qvideotexturehelper_p.h>

++ #include <QtGui/rhi/qrhi.h>

++

++ QT_BEGIN_NAMESPACE

++

++ void QVideoFrameTexturePool::setCurrentFrame(QVideoFrame frame)

++ {

++     m_texturesDirty = true;

++     m_currentFrame = std::move(frame);

++ }

++

++ QVideoFrameTextures *QVideoFrameTexturePool::updateTextures(QRhi &rhi, QRhiResourceUpdateBatch &rub)

++ {

++     const int currentSlot = rhi.currentFrameSlot();

++     Q_ASSERT(size_t(currentSlot) < MaxSlotsCount);

++

++     m_texturesDirty = false;

++     QVideoFrameTexturesUPtr &textures = m_textureSlots[currentSlot];

++     Q_ASSERT(!m_oldTextures);

++     m_oldTextures = std::move(textures);

++     textures = QVideoTextureHelper::createTextures(m_currentFrame, rhi, rub, m_oldTextures);

++

++     m_currentSlot = textures ? currentSlot : std::optional<int>{};

++

++     return textures.get();

++ }

++

++ void QVideoFrameTexturePool::onFrameEndInvoked()

++ {

++     m_oldTextures.reset();

++     if (m_currentSlot && m_textureSlots[*m_currentSlot])

++         m_textureSlots[*m_currentSlot]->onFrameEndInvoked();

++ }

++

++ void QVideoFrameTexturePool::clearTextures()

++ {

++     std::fill(std::begin(m_textureSlots), std::end(m_textureSlots), nullptr);

++     m_currentSlot.reset();

++     m_texturesDirty = m_currentFrame.isValid();

++ }

++

++ QT_END_NAMESPACE