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#include "renderviewjob_p.h"

#include <Qt3DRender/private/renderview_p.h>
#include <Qt3DRender/private/renderer_p.h>
#include <Qt3DRender/private/renderviewjobutils_p.h>
#include <Qt3DRender/private/renderlogging_p.h>

QT_BEGIN_NAMESPACE

namespace Qt3DRender {
namespace Render {

void RenderViewJob::run()
{
    qCDebug(Jobs) << Q_FUNC_INFO << m_index;

    // Create a RenderView object
    // The RenderView are created from a QFrameAllocator stored in the current Thread local storage

    Qt3DCore::QFrameAllocator *currentFrameAllocator = m_renderer->currentFrameAllocator();
    RenderView *renderView = currentFrameAllocator->allocate<RenderView>();

    // RenderView should allocate heap resources using only the currentFrameAllocator
    renderView->setAllocator(currentFrameAllocator);
    renderView->setRenderer(m_renderer);
    renderView->setSurfaceSize(m_surfaceSize);
    renderView->setDevicePixelRatio(m_devicePixelRatio);

    // Populate the renderview's configuration from the framegraph
    setRenderViewConfigFromFrameGraphLeafNode(renderView, m_fgLeaf);

    // 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 (!renderView->noDraw()) {
        const QMatrix4x4 viewProjectionMatrix = renderView->viewProjectionMatrix();

        const Plane planes[6] = {
            Plane(viewProjectionMatrix.row(3) + viewProjectionMatrix.row(0)), // Left
            Plane(viewProjectionMatrix.row(3) - viewProjectionMatrix.row(0)), // Right
            Plane(viewProjectionMatrix.row(3) + viewProjectionMatrix.row(1)), // Top
            Plane(viewProjectionMatrix.row(3) - viewProjectionMatrix.row(1)), // Bottom
            Plane(viewProjectionMatrix.row(3) + viewProjectionMatrix.row(2)), // Front
            Plane(viewProjectionMatrix.row(3) - viewProjectionMatrix.row(2)), // Back
        };

        renderView->gatherLights(m_renderer->sceneRoot());
        renderView->buildRenderCommands(m_renderer->sceneRoot(), planes);
    }

    // Sorts RenderCommand
    renderView->sort();

    // Enqueue our fully populated RenderView with the RenderThread
    m_renderer->enqueueRenderView(renderView, m_index);
}

} // namespace Render
} // namespace Qt3DRender

QT_END_NAMESPACE