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macOS: use software backend by default with Qt6

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Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2022-04-10 13:47:38 -10:00
parent 7bd17a1784
commit baf23fd681
1 changed files with 7 additions and 0 deletions
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7
subsurface-desktop-main.cpp
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@ -128,6 +128,13 @@ int main(int argc, char **argv)
void validateGL()
{
QString quickBackend = qgetenv("QT_QUICK_BACKEND");
/* on macOS with Qt6 (maybe others), things only work with the software backend */
#if defined(Q_OS_MACOS) && QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
if (quickBackend.isEmpty()) {
quickBackend = QStringLiteral("software");
qputenv("QT_QUICK_BACKEND", "software");
}
#endif
/* an empty QT_QUICK_BACKEND env. variable means OpenGL (default).
* only validate OpenGL; for everything else print out and return.
* https://doc.qt.io/qt-5/qtquick-visualcanvas-adaptations.html