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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
#ifndef QT3DRENDER_RENDER_CAMERALENS_H
#define QT3DRENDER_RENDER_CAMERALENS_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <Qt3DRender/private/backendnode_p.h>
#include <Qt3DCore/private/matrix4x4_p.h>
#include <Qt3DRender/private/qcameralens_p.h>
#include <QRectF>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
class EntityManager;
class CameraManager;
class Sphere;
class CameraLensFunctor : public Qt3DCore::QBackendNodeMapper
{
public:
explicit CameraLensFunctor(AbstractRenderer *renderer, QRenderAspect *renderAspect);
Qt3DCore::QBackendNode *create(Qt3DCore::QNodeId id) const override;
Qt3DCore::QBackendNode *get(Qt3DCore::QNodeId id) const override;
void destroy(Qt3DCore::QNodeId id) const override;
private:
CameraManager *m_manager;
AbstractRenderer *m_renderer;
QRenderAspect *m_renderAspect;
};
class Q_3DRENDERSHARED_PRIVATE_EXPORT CameraLens : public BackendNode
{
public:
CameraLens();
~CameraLens();
void cleanup();
void setRenderAspect(QRenderAspect* renderAspect);
Matrix4x4 viewMatrix(const Matrix4x4 &worldTransform);
void setProjection(const Matrix4x4 &projection);
inline Matrix4x4 projection() const { return m_projection; }
void setExposure(float exposure);
inline float exposure() const { return m_exposure; }
void syncFromFrontEnd(const Qt3DCore::QNode *frontEnd, bool firstTime) override;
void processViewAllResult(Qt3DCore::QAspectManager *aspectManager, const Sphere &sphere, Qt3DCore::QNodeId commandId);
static bool viewMatrixForCamera(EntityManager *manager, Qt3DCore::QNodeId cameraId,
Matrix4x4 &viewMatrix, Matrix4x4 &projectionMatrix);
private:
void computeSceneBoundingVolume(Qt3DCore::QNodeId entityId,
Qt3DCore::QNodeId cameraId,
Qt3DCore::QNodeId requestId);
QRenderAspect *m_renderAspect;
CameraLensRequest m_pendingViewAllRequest;
Matrix4x4 m_projection;
float m_exposure;
};
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
#endif // QT3DRENDER_RENDER_CAMERALENS_H
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