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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "framegraphvisitor_p.h"
#include "framegraphnode_p.h"
#include <Qt3DRenderer/private/renderer_p.h>
QT_BEGIN_NAMESPACE
namespace Qt3D {
namespace Render {
FrameGraphVisitor::FrameGraphVisitor()
: m_renderer(Q_NULLPTR)
, m_jobs(Q_NULLPTR)
, m_renderviewIndex(0)
{
}
void FrameGraphVisitor::traverse(FrameGraphNode *root,
Renderer *renderer,
QVector<QAspectJobPtr> *jobs)
{
m_renderer = renderer;
m_jobs = jobs;
m_renderviewIndex = 0;
Q_ASSERT(m_renderer);
Q_ASSERT(m_jobs);
Q_ASSERT_X(root, Q_FUNC_INFO, "The FrameGraphRoot is null");
// Kick off the traversal
Render::FrameGraphNode *node = root;
if (node == Q_NULLPTR)
qCritical() << Q_FUNC_INFO << "FrameGraph is null";
visit(node);
}
void FrameGraphVisitor::visit(Render::FrameGraphNode *node)
{
// Recurse to children (if we have any), otherwise if this is a leaf node,
// initiate a rendering from the current camera
Q_FOREACH (Render::FrameGraphNode *n, node->children())
visit(n);
// Leaf node - create a RenderView ready to be populated
// TODO: Pass in only framegraph config that has changed from previous
// index RenderViewJob.
if (node->childrenHandles().empty()) {
QAspectJobPtr job = m_renderer->createRenderViewJob(node, m_renderviewIndex++);
m_jobs->append(job);
}
}
} // namespace Render
} // namespace Qt3D
QT_END_NAMESPACE
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