diff options
| author | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2022-01-24 16:38:02 +0100 |
|---|---|---|
| committer | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2022-01-25 15:54:05 +0100 |
| commit | f172b964f6d9fc8cadeb7b5efeb3f59c0f8f16f6 (patch) | |
| tree | 2824827877b7971fe8b4834acdbada107ca5b26b /examples/opengl/threadedqopenglwidget/renderer.h | |
| parent | 2d95b7534530fec1e1e52ef7e8be289abb48b822 (diff) | |
threadedqopenglwidget example: Split out class Renderer
This makes the code clearer and decouples it from the
GLWidget.
As a drive-by, add a global shortcut to close.
Pick-to: 6.3 6.2
Change-Id: I3469d29bc367acc17c5f8acf9d46219259b8315b
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Diffstat (limited to 'examples/opengl/threadedqopenglwidget/renderer.h')
| -rw-r--r-- | examples/opengl/threadedqopenglwidget/renderer.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/examples/opengl/threadedqopenglwidget/renderer.h b/examples/opengl/threadedqopenglwidget/renderer.h new file mode 100644 index 00000000000..ad972bea791 --- /dev/null +++ b/examples/opengl/threadedqopenglwidget/renderer.h @@ -0,0 +1,108 @@ +/**************************************************************************** +** +** Copyright (C) 2022 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 RENDERER_H +#define RENDERER_H + +#include <QOpenGLFunctions> +#include <QOpenGLBuffer> +#include <QOpenGLShaderProgram> +#include <QVector3D> +#include <QMatrix4x4> +#include <QThread> +#include <QMutex> +#include <QWaitCondition> +#include <QElapsedTimer> + +QT_FORWARD_DECLARE_CLASS(QOpenGLWidget) + +class Renderer : public QObject, protected QOpenGLFunctions +{ + Q_OBJECT + +public: + explicit Renderer(QOpenGLWidget *w); + void lockRenderer() { m_renderMutex.lock(); } + void unlockRenderer() { m_renderMutex.unlock(); } + QMutex *grabMutex() { return &m_grabMutex; } + QWaitCondition *grabCond() { return &m_grabCond; } + void prepareExit() { m_exiting = true; m_grabCond.wakeAll(); } + +signals: + void contextWanted(); + +public slots: + void render(); + +private: + void paintQtLogo(); + void createGeometry(); + void quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4); + void extrude(qreal x1, qreal y1, qreal x2, qreal y2); + + bool m_inited = false; + qreal m_fAngle = 0; + qreal m_fScale = 1; + QList<QVector3D> vertices; + QList<QVector3D> normals; + QOpenGLShaderProgram program; + QOpenGLBuffer vbo; + int vertexAttr = 0; + int normalAttr = 0; + int matrixUniform = 0; + QOpenGLWidget *m_glwidget = nullptr; + QMutex m_renderMutex; + QElapsedTimer m_elapsed; + QMutex m_grabMutex; + QWaitCondition m_grabCond; + bool m_exiting = false; +}; + +#endif // RENDERER_H |