e48737ae77
[ChangeLog] Added QOpenGLWindow. This serves as a convenience class for creating windows showing OpenGL content via an API similar to QGLWidget and without any widget dependencies. Done-with: Jorgen Lind <jorgen.lind@digia.com> Task-number: QTBUG-36899 Change-Id: I52e9bc61acb129dbfd3841b3adeffab2dbcf7f05 Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
79 lines
2.9 KiB
C++
79 lines
2.9 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
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** of its contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef FRAGMENT_TOY_H
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#define FRAGMENT_TOY_H
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#include <QtCore/QObject>
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#include <QtCore/QFile>
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#include <QtCore/QDateTime>
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#include <QtCore/QFileSystemWatcher>
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#include <QtGui/QOpenGLVertexArrayObject>
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#include <QtGui/QOpenGLBuffer>
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#include <QtGui/QOpenGLShaderProgram>
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#include <QtGui/QOpenGLFunctions>
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class FragmentToy : public QObject, protected QOpenGLFunctions
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{
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Q_OBJECT
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public:
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FragmentToy(const QString &fragmentSource, QObject *parent = 0);
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void draw(const QSize &windowSize);
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private:
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void fileChanged(const QString &path);
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bool m_recompile_shaders;
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#ifndef QT_NO_FILESYSTEMWATCHER
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QFileSystemWatcher m_watcher;
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#endif
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QString m_fragment_file;
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QDateTime m_fragment_file_last_modified;
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QScopedPointer<QOpenGLShaderProgram> m_program;
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QScopedPointer<QOpenGLShader> m_vertex_shader;
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QScopedPointer<QOpenGLShader> m_fragment_shader;
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QOpenGLVertexArrayObject m_vao;
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QOpenGLBuffer m_vertex_buffer;
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GLuint m_vertex_coord_pos;
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};
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#endif //FRAGMENT_TOY_H
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