diff options
Diffstat (limited to 'src/gui/kernel/qsurfaceformat.cpp')
| -rw-r--r-- | src/gui/kernel/qsurfaceformat.cpp | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/gui/kernel/qsurfaceformat.cpp b/src/gui/kernel/qsurfaceformat.cpp index 2b8e611dff..f077abc6a2 100644 --- a/src/gui/kernel/qsurfaceformat.cpp +++ b/src/gui/kernel/qsurfaceformat.cpp @@ -196,6 +196,9 @@ public: /*! Constructs a default initialized QSurfaceFormat. + + \note By default OpenGL 2.0 is requested since this provides the highest + grade of portability between platforms and OpenGL implementations. */ QSurfaceFormat::QSurfaceFormat() : d(new QSurfaceFormatPrivate) { @@ -730,6 +733,43 @@ int QSurfaceFormat::swapInterval() const return d->swapInterval; } +Q_GLOBAL_STATIC(QSurfaceFormat, qt_default_surface_format) + +/*! + Sets the global default surface \a format. + + This format is used by default in QOpenGLContext, QWindow, QOpenGLWidget and + similar classes. + + It can always be overridden on a per-instance basis by using the class in + question's own setFormat() function. However, it is often more convenient to + set the format for all windows once at the start of the application. It also + guarantees proper behavior in cases where shared contexts are required, + because settings the format via this function guarantees that all contexts + and surfaces, even the ones created internally by Qt, will use the same + format. + + \since 5.4 + \sa defaultFormat() + */ +void QSurfaceFormat::setDefaultFormat(const QSurfaceFormat &format) +{ + *qt_default_surface_format() = format; +} + +/*! + Returns the global default surface format. + + When setDefaultFormat() is not called, this is a default-constructed QSurfaceFormat. + + \since 5.4 + \sa setDefaultFormat() + */ +QSurfaceFormat QSurfaceFormat::defaultFormat() +{ + return *qt_default_surface_format(); +} + /*! Returns \c true if all the options of the two QSurfaceFormat objects \a a and \a b are equal. |