Revision control
++ // Copyright (C) 2017 Juan José Casafranca
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++
++ #include "sendbuffercapturejob_p.h"
++
++ #include <Qt3DRender/private/nodemanagers_p.h>
++ #include <Qt3DRender/private/job_common_p.h>
++ #include <Qt3DRender/private/buffer_p.h>
++ #include <Qt3DRender/private/buffermanager_p.h>
++ #include <Qt3DCore/private/qaspectmanager_p.h>
++ #include <Qt3DCore/private/qbuffer_p.h>
++ #include <Qt3DCore/private/vector_helper_p.h>
++
++ QT_BEGIN_NAMESPACE
++
++ namespace Qt3DRender {
++
++ namespace Render {
++
++ class SendBufferCaptureJobPrivate : public Qt3DCore::QAspectJobPrivate
++ {
++ public:
++ SendBufferCaptureJobPrivate() {}
++ ~SendBufferCaptureJobPrivate() {}
++
++ void postFrame(Qt3DCore::QAspectManager *aspectManager) override;
++
++ mutable QMutex m_mutex;
++ QList<QPair<Qt3DCore::QNodeId, QByteArray>> m_buffersToCapture;
++ QList<QPair<Qt3DCore::QNodeId, QByteArray>> m_buffersToNotify;
++ };
++
++ SendBufferCaptureJob::SendBufferCaptureJob()
++ : Qt3DCore::QAspectJob(*new SendBufferCaptureJobPrivate)
++ , m_nodeManagers(nullptr)
++ {
++ SET_JOB_RUN_STAT_TYPE(this, JobTypes::SendBufferCapture, 0)
++ }
++
++ SendBufferCaptureJob::~SendBufferCaptureJob()
++ {
++ }
++
++ // Called from SubmitRenderView while rendering
++ void SendBufferCaptureJob::addRequest(QPair<Qt3DCore::QNodeId, QByteArray> request)
++ {
++ Q_D(SendBufferCaptureJob);
++ QMutexLocker locker(&d->m_mutex);
++ d->m_buffersToCapture.push_back(request);
++ }
++
++ // Called by aspect thread jobs to execute (we may still be rendering at this point)
++ bool SendBufferCaptureJob::hasRequests() const
++ {
++ Q_D(const SendBufferCaptureJob);
++ QMutexLocker locker(&d->m_mutex);
++ return d->m_buffersToCapture.size() > 0;
++ }
++
++ void SendBufferCaptureJob::run()
++ {
++ Q_ASSERT(m_nodeManagers);
++ Q_D(SendBufferCaptureJob);
++ QMutexLocker locker(&d->m_mutex);
++ for (const QPair<Qt3DCore::QNodeId, QByteArray> &pendingCapture : std::as_const(d->m_buffersToCapture)) {
++ Buffer *buffer = m_nodeManagers->bufferManager()->lookupResource(pendingCapture.first);
++ // Buffer might have been destroyed between the time addRequest is made and this job gets run
++ // If it exists however, it cannot be destroyed before this job is done running
++ if (buffer != nullptr)
++ buffer->updateDataFromGPUToCPU(pendingCapture.second);
++ }
++ d->m_buffersToNotify = Qt3DCore::moveAndClear(d->m_buffersToCapture);
++ }
++
++ void SendBufferCaptureJobPrivate::postFrame(Qt3DCore::QAspectManager *aspectManager)
++ {
++ QMutexLocker locker(&m_mutex);
++ const QList<QPair<Qt3DCore::QNodeId, QByteArray>> pendingSendBufferCaptures = Qt3DCore::moveAndClear(m_buffersToNotify);
++ for (const auto &bufferDataPair : pendingSendBufferCaptures) {
++ Qt3DCore::QBuffer *frontendBuffer = static_cast<decltype(frontendBuffer)>(aspectManager->lookupNode(bufferDataPair.first));
++ if (!frontendBuffer)
++ continue;
++ Qt3DCore::QBufferPrivate *dFrontend = static_cast<decltype(dFrontend)>(Qt3DCore::QNodePrivate::get(frontendBuffer));
++ // Calling frontendBuffer->setData would result in forcing a sync against the backend
++ // which isn't necessary
++ dFrontend->setData(bufferDataPair.second);
++ Q_EMIT frontendBuffer->dataAvailable();
++ }
++ }
++
++ } // Render
++
++ } // Qt3DRender
++
++ QT_END_NAMESPACE