diff options
| author | Laszlo Agocs <laszlo.agocs@qt.io> | 2023-09-14 15:56:08 +0200 |
|---|---|---|
| committer | Laszlo Agocs <laszlo.agocs@qt.io> | 2023-09-18 20:26:22 +0000 |
| commit | ffb857e9d0745fdd31bca091333f1120c5857d7b (patch) | |
| tree | 4742342bcf338a30e759e45189906d8cd959f75a /src/gui/painting | |
| parent | 12d6fc5229196038af8d42cb0edec91766c1a1d4 (diff) | |
Sync rhi backingstore prefer-software env.var with Quick
Behaving differently in QQuickWindow vs. a QRhi-based widget
window is not great for WebEngine. The env.var naming is not
the best (QSG prefix) but we already have some precedent for
this (recognizing QSG_INFO in QRhi), and there is no other
choice anyway.
Pick-to: 6.6 6.5 6.6.0 6.5.3
Task-number: QTBUG-116445
Change-Id: Ibfd495cbd1d42502441d6629325bdeb033e813f3
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Diffstat (limited to 'src/gui/painting')
| -rw-r--r-- | src/gui/painting/qbackingstorerhisupport.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/gui/painting/qbackingstorerhisupport.cpp b/src/gui/painting/qbackingstorerhisupport.cpp index d811abf648..3927367af6 100644 --- a/src/gui/painting/qbackingstorerhisupport.cpp +++ b/src/gui/painting/qbackingstorerhisupport.cpp @@ -56,6 +56,11 @@ bool QBackingStoreRhiSupport::create() QOffscreenSurface *surface = nullptr; QRhi::Flags flags; + // This must be the same env.var. Qt Quick uses, to ensure symmetry in the + // behavior between a QQuickWindow and a (QRhi-based) widget top-level window. + if (qEnvironmentVariableIntValue("QSG_RHI_PREFER_SOFTWARE_RENDERER")) + flags |= QRhi::PreferSoftwareRenderer; + if (m_config.api() == QPlatformBackingStoreRhiConfig::Null) { QRhiNullInitParams params; rhi = QRhi::create(QRhi::Null, ¶ms, flags); |