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Diffstat (limited to 'examples/quick/quickwidgets/qquickviewcomparison/fbitem.h')
-rw-r--r-- | examples/quick/quickwidgets/qquickviewcomparison/fbitem.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/examples/quick/quickwidgets/qquickviewcomparison/fbitem.h b/examples/quick/quickwidgets/qquickviewcomparison/fbitem.h new file mode 100644 index 0000000000..b29998c253 --- /dev/null +++ b/examples/quick/quickwidgets/qquickviewcomparison/fbitem.h @@ -0,0 +1,136 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 Digia Plc and its Subsidiary(-ies) 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) Q_DECL_OVERRIDE; + void render() Q_DECL_OVERRIDE; + QOpenGLFramebufferObject *createFramebufferObject(const QSize &size) Q_DECL_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 Q_DECL_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 |