/****************************************************************************
**
** Copyright (C) 2016 Paul Lemire
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** General Public License version 3 as published by the Free Software
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** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
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****************************************************************************/

#include "renderviewbuilderjob_p.h"
#include <Qt3DRender/private/job_common_p.h>
#include <Qt3DRender/private/renderer_p.h>
#include <Qt3DRender/private/renderview_p.h>

QT_BEGIN_NAMESPACE

namespace Qt3DRender {

namespace Render {

#ifdef QT3D_JOBS_RUN_STATS
namespace {
int renderViewInstanceCounter = 0;
} // anonymous
#endif

RenderViewBuilderJob::RenderViewBuilderJob()
    : Qt3DCore::QAspectJob(),
      m_renderView(nullptr)
{
    SET_JOB_RUN_STAT_TYPE(this, JobTypes::RenderViewBuilder, renderViewInstanceCounter++);
}

void RenderViewBuilderJob::run()
{
    // Build RenderCommand should perform the culling as we have no way to determine
    // if a child has a mesh in the view frustum while its parent isn't contained in it.
    if (!m_renderView->noDraw()) {
#if defined(QT3D_RENDER_VIEW_JOB_TIMINGS)
        gatherLightsTime = timer.nsecsElapsed();
        timer.restart();
#endif
    if (!m_renderView->isCompute())
        m_commands = m_renderView->buildDrawRenderCommands(m_renderables);
    else
        m_commands = m_renderView->buildComputeRenderCommands(m_renderables);
#if defined(QT3D_RENDER_VIEW_JOB_TIMINGS)
        buildCommandsTime = timer.nsecsElapsed();
        timer.restart();
#endif
    }

#if defined(QT3D_RENDER_VIEW_JOB_TIMINGS)
    qint64 creationTime = timer.nsecsElapsed();
    timer.restart();
#endif

#if defined(QT3D_RENDER_VIEW_JOB_TIMINGS)
    qint64 sortTime = timer.nsecsElapsed();
#endif

#if defined(QT3D_RENDER_VIEW_JOB_TIMINGS)
    qDebug() << m_index
             << "state:" << gatherStateTime / 1.0e6
             << "lights:" << gatherLightsTime / 1.0e6
             << "build commands:" << buildCommandsTime / 1.0e6
             << "sort:" << sortTime / 1.0e6;
#endif


}

} // Render

} // Qt3DRender

QT_END_NAMESPACE
