| /**************************************************************************** |
| ** |
| ** Copyright (C) 2017 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the examples of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:BSD$ |
| ** 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 The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** BSD License Usage |
| ** Alternatively, you may use this file under the terms of the BSD license |
| ** as follows: |
| ** |
| ** "Redistribution and use in source and binary forms, with or without |
| ** modification, are permitted provided that the following conditions are |
| ** met: |
| ** * Redistributions of source code must retain the above copyright |
| ** notice, this list of conditions and the following disclaimer. |
| ** * Redistributions in binary form must reproduce the above copyright |
| ** notice, this list of conditions and the following disclaimer in |
| ** the documentation and/or other materials provided with the |
| ** distribution. |
| ** * Neither the name of The Qt Company Ltd nor the names of its |
| ** contributors may be used to endorse or promote products derived |
| ** from this software without specific prior written permission. |
| ** |
| ** |
| ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef FBITEM_H |
| #define FBITEM_H |
| |
| #include <QQuickFramebufferObject> |
| #include <QOpenGLVertexArrayObject> |
| #include <QOpenGLBuffer> |
| #include <QOpenGLShaderProgram> |
| #include <QVector3D> |
| #include "logo.h" |
| |
| struct StateBinder; |
| |
| class FbItemRenderer : public QQuickFramebufferObject::Renderer |
| { |
| public: |
| FbItemRenderer(bool multisample); |
| void synchronize(QQuickFramebufferObject *item) override; |
| void render() override; |
| QOpenGLFramebufferObject *createFramebufferObject(const QSize &size) override; |
| |
| private: |
| void ensureInit(); |
| void initBuf(); |
| void setupVertexAttribs(); |
| void initProgram(); |
| void updateDirtyUniforms(); |
| |
| bool m_inited; |
| bool m_multisample; |
| QMatrix4x4 m_proj; |
| QMatrix4x4 m_camera; |
| QMatrix4x4 m_baseWorld; |
| QMatrix4x4 m_world; |
| QOpenGLVertexArrayObject m_vao; |
| QOpenGLBuffer m_logoVbo; |
| Logo m_logo; |
| QScopedPointer<QOpenGLShaderProgram> m_program; |
| int m_projMatrixLoc; |
| int m_camMatrixLoc; |
| int m_worldMatrixLoc; |
| int m_normalMatrixLoc; |
| int m_lightPosLoc; |
| QVector3D m_rotation; |
| |
| enum Dirty { |
| DirtyProjection = 0x01, |
| DirtyCamera = 0x02, |
| DirtyWorld = 0x04, |
| DirtyLight = 0x08, |
| DirtyAll = 0xFF |
| }; |
| int m_dirty; |
| |
| friend struct StateBinder; |
| }; |
| |
| class FbItem : public QQuickFramebufferObject |
| { |
| Q_OBJECT |
| Q_PROPERTY(QVector3D eye READ eye WRITE setEye) |
| Q_PROPERTY(QVector3D target READ target WRITE setTarget) |
| Q_PROPERTY(QVector3D rotation READ rotation WRITE setRotation) |
| Q_PROPERTY(bool multisample READ multisample WRITE setMultisample) |
| |
| public: |
| explicit FbItem(QQuickItem *parent = 0); |
| |
| QQuickFramebufferObject::Renderer *createRenderer() const override; |
| |
| QVector3D eye() const { return m_eye; } |
| void setEye(const QVector3D &v); |
| QVector3D target() const { return m_target; } |
| void setTarget(const QVector3D &v); |
| |
| QVector3D rotation() const { return m_rotation; } |
| void setRotation(const QVector3D &v); |
| |
| enum SyncState { |
| CameraNeedsSync = 0x01, |
| RotationNeedsSync = 0x02, |
| AllNeedsSync = 0xFF |
| }; |
| int swapSyncState(); |
| |
| bool multisample() const { return m_multisample; } |
| void setMultisample(bool m) { m_multisample = m; } |
| |
| private: |
| QVector3D m_eye; |
| QVector3D m_target; |
| QVector3D m_rotation; |
| int m_syncState; |
| bool m_multisample; |
| }; |
| |
| #endif // FBITEM_H |