diff options
Diffstat (limited to 'examples/opengl/computegles31/main.cpp')
| -rw-r--r-- | examples/opengl/computegles31/main.cpp | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/examples/opengl/computegles31/main.cpp b/examples/opengl/computegles31/main.cpp new file mode 100644 index 0000000000..88f0f36115 --- /dev/null +++ b/examples/opengl/computegles31/main.cpp @@ -0,0 +1,148 @@ +/**************************************************************************** +** +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: http://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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QGuiApplication> +#include <QSurfaceFormat> +#include <QOffscreenSurface> +#include <QOpenGLContext> +#include <QDebug> +#include <QPair> +#include "glwindow.h" + +bool OGLSupports(int major, int minor, bool gles = false, QSurfaceFormat::OpenGLContextProfile profile = QSurfaceFormat::NoProfile) +{ + QOpenGLContext ctx; + QSurfaceFormat fmt; + fmt.setVersion(major, minor); + if (gles) { + fmt.setRenderableType(QSurfaceFormat::OpenGLES); + } else { + fmt.setRenderableType(QSurfaceFormat::OpenGL); + fmt.setProfile(profile); + } + + ctx.setFormat(fmt); + ctx.create(); + if (!ctx.isValid()) + return false; + int ctxMajor = ctx.format().majorVersion(); + int ctxMinor = ctx.format().minorVersion(); + bool isGles = (ctx.format().renderableType() == QSurfaceFormat::OpenGLES); + + if (isGles != gles) return false; + if (ctxMajor < major) return false; + if (ctxMajor == major && ctxMinor < minor) + return false; + if (!gles && ctx.format().profile() != profile) + return false; + return true; +} + +int main(int argc, char *argv[]) +{ + QGuiApplication app(argc, argv); + + qDebug() << "Support for GL 2.0 noprof "<<( OGLSupports(2,0,false) ? "yes" : "no"); + qDebug() << "Support for GL 2.0 core "<<( OGLSupports(2,0,false, QSurfaceFormat::CoreProfile) ? "yes" : "no"); + qDebug() << "Support for GL 2.0 compat "<<( OGLSupports(2,0,false, QSurfaceFormat::CompatibilityProfile) ? "yes" : "no"); + qDebug() << "Support for GL 2.1 noprof "<<( OGLSupports(2,1,false) ? "yes" : "no"); + qDebug() << "Support for GL 2.1 core "<<( OGLSupports(2,1,false, QSurfaceFormat::CoreProfile) ? "yes" : "no"); + qDebug() << "Support for GL 2.1 compat "<<( OGLSupports(2,1,false, QSurfaceFormat::CompatibilityProfile) ? "yes" : "no"); + qDebug() << "Support for GL 3.0 noprof "<<( OGLSupports(3,0,false) ? "yes" : "no"); + qDebug() << "Support for GL 3.0 core "<<( OGLSupports(3,0,false, QSurfaceFormat::CoreProfile) ? "yes" : "no"); + qDebug() << "Support for GL 3.0 compat "<<( OGLSupports(3,0,false, QSurfaceFormat::CompatibilityProfile) ? "yes" : "no"); + qDebug() << "Support for GL 3.1 noprof "<<( OGLSupports(3,1,false) ? "yes" : "no"); + qDebug() << "Support for GL 3.1 core "<<( OGLSupports(3,1,false, QSurfaceFormat::CoreProfile) ? "yes" : "no"); + qDebug() << "Support for GL 3.1 compat "<<( OGLSupports(3,1,false, QSurfaceFormat::CompatibilityProfile) ? "yes" : "no"); + qDebug() << "Support for GL 3.2 core "<<( OGLSupports(3,2,false,QSurfaceFormat::CoreProfile) ? "yes" : "no"); + qDebug() << "Support for GL 3.2 compat "<<( OGLSupports(3,2,false,QSurfaceFormat::CompatibilityProfile) ? "yes" : "no"); + qDebug() << "Support for GL 3.3 core "<<( OGLSupports(3,3,false,QSurfaceFormat::CoreProfile) ? "yes" : "no"); + qDebug() << "Support for GL 3.3 compat "<<( OGLSupports(3,3,false,QSurfaceFormat::CompatibilityProfile) ? "yes" : "no"); + qDebug() << "Support for GL 4.0 core "<<( OGLSupports(4,0,false,QSurfaceFormat::CoreProfile) ? "yes" : "no"); + qDebug() << "Support for GL 4.0 compat "<<( OGLSupports(4,0,false,QSurfaceFormat::CompatibilityProfile) ? "yes" : "no"); + qDebug() << "Support for GL 4.1 core "<<( OGLSupports(4,1,false,QSurfaceFormat::CoreProfile) ? "yes" : "no"); + qDebug() << "Support for GL 4.1 compat "<<( OGLSupports(4,1,false,QSurfaceFormat::CompatibilityProfile) ? "yes" : "no"); + qDebug() << "Support for GL 4.2 core "<<( OGLSupports(4,2,false,QSurfaceFormat::CoreProfile) ? "yes" : "no"); + qDebug() << "Support for GL 4.2 compat "<<( OGLSupports(4,2,false,QSurfaceFormat::CompatibilityProfile) ? "yes" : "no"); + qDebug() << "Support for GL 4.3 core "<<( OGLSupports(4,3,false,QSurfaceFormat::CoreProfile) ? "yes" : "no"); + qDebug() << "Support for GL 4.3 compat "<<( OGLSupports(4,3,false,QSurfaceFormat::CompatibilityProfile) ? "yes" : "no"); + qDebug() << "Support for GL 4.4 core "<<( OGLSupports(4,4,false,QSurfaceFormat::CoreProfile) ? "yes" : "no"); + qDebug() << "Support for GL 4.4 compat "<<( OGLSupports(4,4,false,QSurfaceFormat::CompatibilityProfile) ? "yes" : "no"); + qDebug() << "Support for GL 4.5 core "<<( OGLSupports(4,5,false,QSurfaceFormat::CoreProfile) ? "yes" : "no"); + qDebug() << "Support for GL 4.5 compat "<<( OGLSupports(4,5,false,QSurfaceFormat::CompatibilityProfile) ? "yes" : "no"); + qDebug() << "Support for GLES 2.0 "<<( OGLSupports(2,0,true) ? "yes" : "no"); + qDebug() << "Support for GLES 3.0 "<<( OGLSupports(3,0,true) ? "yes" : "no"); + qDebug() << "Support for GLES 3.1 "<<( OGLSupports(3,1,true) ? "yes" : "no"); + qDebug() << "Support for GLES 3.2 "<<( OGLSupports(3,2,true) ? "yes" : "no"); + + QSurfaceFormat fmt; + fmt.setDepthBufferSize(24); + + // Request OpenGL ES 3.1 context, as this is a GLES example. If not available, go for OpenGL 4.3 core. + if (OGLSupports(3,1,true)) { + qDebug("Requesting 3.1 GLES context"); + fmt.setVersion(3, 1); + fmt.setRenderableType(QSurfaceFormat::OpenGLES); + } else if (OGLSupports(4,3,false,QSurfaceFormat::CoreProfile)) { + qDebug("Requesting 4.3 core context"); + fmt.setVersion(4, 3); + fmt.setRenderableType(QSurfaceFormat::OpenGL); + fmt.setProfile(QSurfaceFormat::CoreProfile); + } else { + qWarning("Error: This system does not support OpenGL Compute Shaders! Exiting."); + return -1; + } + QSurfaceFormat::setDefaultFormat(fmt); + + GLWindow glWindow; + glWindow.showMaximized(); + + return app.exec(); +} |