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Diffstat (limited to 'src/gui/painting/qbackingstorerhisupport.cpp')
-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); |