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| author | Laszlo Agocs <laszlo.agocs@digia.com> | 2015-02-25 15:16:13 +0100 |
|---|---|---|
| committer | Laszlo Agocs <laszlo.agocs@theqtcompany.com> | 2015-02-25 14:35:28 +0000 |
| commit | 9021639f41f8f45ed4f8b495cee85310638862c5 (patch) | |
| tree | d36c396f638d1b30c1d722112f96689fc9a219e0 /src/gui/kernel/qsurfaceformat.cpp | |
| parent | 8b0b24064eb382bc77b3f63b849562fa878ab953 (diff) | |
Improve setDefaultFormat docs regarding AA_ShareOpenGLContexts
When using core profile contexts, sharing with the global share context
may not work if the global one is a non-core context. This can happen
when setDefaultFormat() is called only after Q(Gui)Application is
constructed. This is a typical issue on OS X, so document it.
Change-Id: I6a8dca442ffeb884faedb9c6346351bb6eef3cff
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Reviewed-by: Jørgen Lind <jorgen.lind@theqtcompany.com>
Diffstat (limited to 'src/gui/kernel/qsurfaceformat.cpp')
| -rw-r--r-- | src/gui/kernel/qsurfaceformat.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/gui/kernel/qsurfaceformat.cpp b/src/gui/kernel/qsurfaceformat.cpp index 2fdfa3baf1..6ec13e92a1 100644 --- a/src/gui/kernel/qsurfaceformat.cpp +++ b/src/gui/kernel/qsurfaceformat.cpp @@ -747,6 +747,12 @@ Q_GLOBAL_STATIC(QSurfaceFormat, qt_default_surface_format) and surfaces, even the ones created internally by Qt, will use the same format. + \note When setting Qt::AA_ShareOpenGLContexts, it is strongly recommended to + place the call to this function before the construction of the + QGuiApplication or QApplication. Otherwise \a format will not be applied to + the global share context and therefore issues may arise with context sharing + afterwards. + \since 5.4 \sa defaultFormat() */ |