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Diffstat (limited to 'src/core/render/frontend/camera_p.h')
-rw-r--r-- | src/core/render/frontend/camera_p.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/src/core/render/frontend/camera_p.h b/src/core/render/frontend/camera_p.h new file mode 100644 index 000000000..7f7015735 --- /dev/null +++ b/src/core/render/frontend/camera_p.h @@ -0,0 +1,129 @@ +/**************************************************************************** +** +** 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. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef CAMERA_P_H +#define CAMERA_P_H + +#include <QMatrix4x4> +#include <QVector3D> + +namespace Qt3D { + +class CameraPrivate +{ +public: + CameraPrivate( Camera *qq ) + : q_ptr( qq ) + , m_position( 0.0f, 0.0f, 1.0f ) + , m_upVector( 0.0f, 1.0f, 0.0f ) + , m_viewCenter( 0.0f, 0.0f, 0.0f ) + , m_cameraToCenter( 0.0f, 0.0f, -1.0f ) + , m_projectionType( Camera::OrthogonalProjection ) + , m_nearPlane( 0.1f ) + , m_farPlane( 1024.0f ) + , m_fieldOfView( 25.0f ) + , m_aspectRatio( 1.0f ) + , m_left( -0.5 ) + , m_right( 0.5f ) + , m_bottom( -0.5f ) + , m_top( 0.5f ) + , m_viewMatrixDirty( true ) + , m_viewProjectionMatrixDirty( true ) + , m_syncNeeded( false ) + { + updateOrthogonalProjection(); + } + + ~CameraPrivate() + { + } + + inline void updatePerpectiveProjection() + { + m_projectionMatrix.setToIdentity(); + m_projectionMatrix.perspective( m_fieldOfView, m_aspectRatio, m_nearPlane, m_farPlane ); + m_viewProjectionMatrixDirty = true; + m_syncNeeded = true; + } + + inline void updateOrthogonalProjection() + { + m_projectionMatrix.setToIdentity(); + m_projectionMatrix.ortho( m_left, m_right, m_bottom, m_top, m_nearPlane, m_farPlane ); + m_viewProjectionMatrixDirty = true; + m_syncNeeded = true; + } + + Q_DECLARE_PUBLIC( Camera ) + + Camera *q_ptr; + + QVector3D m_position; + QVector3D m_upVector; + QVector3D m_viewCenter; + + QVector3D m_cameraToCenter; // The vector from the camera position to the view center + + Camera::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_viewMatrix; + mutable QMatrix4x4 m_projectionMatrix; + mutable QMatrix4x4 m_viewProjectionMatrix; + + mutable bool m_viewMatrixDirty; + mutable bool m_viewProjectionMatrixDirty; + mutable bool m_syncNeeded; +}; + +} + +#endif // CAMERA_P_H |