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| ** This file is part of the examples of the Qt Toolkit. |
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| |
| #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(); |
| } |