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// Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "expandboundingvolumejob_p.h"
#include <Qt3DRender/private/entity_p.h>
#include <Qt3DRender/private/renderlogging_p.h>
#include <Qt3DRender/private/sphere_p.h>
#include <Qt3DRender/private/job_common_p.h>
#include <Qt3DRender/private/managers_p.h>
#include <Qt3DRender/private/nodemanagers_p.h>
#include <QThread>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
namespace {
void expandWorldBoundingVolume(NodeManagers *manager, Entity *node)
{
// Go to the nodes that have the most depth
const auto &childrenHandles = node->childrenHandles();
for (const HEntity &handle : childrenHandles) {
Entity *c = manager->renderNodesManager()->data(handle);
if (c && c->isEnabled())
expandWorldBoundingVolume(manager, c);
}
// Then traverse back from leaf to root
// Initialize parent bounding volume to be equal to that of the first child
if (!childrenHandles.empty()) {
Qt3DRender::Render::Sphere *parentBoundingVolume = node->worldBoundingVolumeWithChildren();
for (const HEntity &handle : childrenHandles) {
Entity *c = manager->renderNodesManager()->data(handle);
if (c && c->isEnabled())
parentBoundingVolume->expandToContain(*c->worldBoundingVolumeWithChildren());
}
}
}
}
ExpandBoundingVolumeJob::ExpandBoundingVolumeJob()
: m_node(nullptr)
, m_manager(nullptr)
{
SET_JOB_RUN_STAT_TYPE(this, JobTypes::ExpandBoundingVolume, 0)
}
void ExpandBoundingVolumeJob::setRoot(Entity *root)
{
m_node = root;
}
void ExpandBoundingVolumeJob::setManagers(NodeManagers *manager)
{
m_manager = manager;
}
void ExpandBoundingVolumeJob::run()
{
// Expand worldBoundingVolumeWithChildren of each node that has children by the
// bounding volumes of the children.
// TODO: Implement this using a parallel_for
qCDebug(Jobs) << "Entering" << Q_FUNC_INFO << QThread::currentThread();
expandWorldBoundingVolume(m_manager, m_node);
qCDebug(Jobs) << "Exiting" << Q_FUNC_INFO << QThread::currentThread();
}
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
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