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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_CAMERALENS_P_H
#define QT3DRENDER_CAMERALENS_P_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/qt3drender_global_p.h>
#include <Qt3DCore/private/qcomponent_p.h>
#include "qcameralens.h"
#include <QtGui/qmatrix4x4.h>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
struct CameraLensRequest
{
Qt3DCore::QNodeId requestId;
Qt3DCore::QNodeId cameraId;
Qt3DCore::QNodeId entityId;
inline operator bool() const { return !requestId.isNull(); }
};
inline bool operator ==(const CameraLensRequest &a, const CameraLensRequest &b) noexcept
{
return a.cameraId == b.cameraId && a.entityId == b.entityId && a.requestId == b.requestId;
}
inline bool operator !=(const CameraLensRequest &a, const CameraLensRequest &b) noexcept
{
return !(a == b);
}
class Q_3DRENDERSHARED_PRIVATE_EXPORT QCameraLensPrivate : public Qt3DCore::QComponentPrivate
{
public:
QCameraLensPrivate();
inline void updateProjectionMatrix()
{
switch (m_projectionType) {
case QCameraLens::OrthographicProjection:
updateOrthographicProjection();
break;
case QCameraLens::PerspectiveProjection:
updatePerpectiveProjection();
break;
case QCameraLens::FrustumProjection:
updateFrustumProjection();
break;
case QCameraLens::CustomProjection:
break;
}
}
Q_DECLARE_PUBLIC(QCameraLens)
QCameraLens::ProjectionType m_projectionType;
float m_nearPlane;
float m_farPlane;
float m_fieldOfView;
float m_aspectRatio;
float m_left;
float m_right;
float m_bottom;
float m_top;
mutable QMatrix4x4 m_projectionMatrix;
float m_exposure;
CameraLensRequest m_pendingViewAllRequest;
void processViewAllResult(Qt3DCore::QNodeId requestId, const QVector3D ¢er, float radius);
private:
inline void updatePerpectiveProjection()
{
Q_Q(QCameraLens);
m_projectionMatrix.setToIdentity();
m_projectionMatrix.perspective(m_fieldOfView, m_aspectRatio, m_nearPlane, m_farPlane);
Q_EMIT q->projectionMatrixChanged(m_projectionMatrix);
}
inline void updateOrthographicProjection()
{
Q_Q(QCameraLens);
m_projectionMatrix.setToIdentity();
m_projectionMatrix.ortho(m_left, m_right, m_bottom, m_top, m_nearPlane, m_farPlane);
Q_EMIT q->projectionMatrixChanged(m_projectionMatrix);
}
inline void updateFrustumProjection()
{
Q_Q(QCameraLens);
m_projectionMatrix.setToIdentity();
m_projectionMatrix.frustum(m_left, m_right, m_bottom, m_top, m_nearPlane, m_farPlane);
Q_EMIT q->projectionMatrixChanged(m_projectionMatrix);
}
};
struct QCameraLensData
{
QMatrix4x4 projectionMatrix;
float exposure;
};
} // namespace Qt3DRender
QT_END_NAMESPACE
#endif // QT3DRENDER_CAMERALENS_P_H