From a9ca1aef2291abea36bba9b934f154ea9866337d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Tor=20Arne=20Vestb=C3=B8?= Date: Tue, 8 Jul 2025 16:17:00 +0200 Subject: Disable QPlatformIntegration::Capability::OpenGL on macOS 26 in VMs Or rather, when detecting that the software GL renderer is in use, which is the case in VMs, or when requesting Qt::AA_UseSoftwareOpenGL explictly. In this situation macOS 26 crashes in [NSOpenGLContext flushBuffer] and [NSOpenGLContext setView:], making it unusable. Hopefully this issue is resolved in the platform, but for now we report lack of OpenGL so we can get our tests passing/skipping in CI. Change-Id: I68412aed5174194c80d2b079ffba141f9f2a3be1 Reviewed-by: Volker Hilsheimer --- src/plugins/platforms/cocoa/qcocoaglcontext.h | 3 +++ src/plugins/platforms/cocoa/qcocoaglcontext.mm | 8 ++++++++ src/plugins/platforms/cocoa/qcocoaintegration.mm | 18 ++++++++++++++++++ 3 files changed, 29 insertions(+) diff --git a/src/plugins/platforms/cocoa/qcocoaglcontext.h b/src/plugins/platforms/cocoa/qcocoaglcontext.h index 36546879ae4..13139dd399d 100644 --- a/src/plugins/platforms/cocoa/qcocoaglcontext.h +++ b/src/plugins/platforms/cocoa/qcocoaglcontext.h @@ -43,6 +43,8 @@ public: QFunctionPointer getProcAddress(const char *procName) override; + bool isSoftwareContext() const; + private: static NSOpenGLPixelFormat *pixelFormatForSurfaceFormat(const QSurfaceFormat &format); @@ -54,6 +56,7 @@ private: QSurfaceFormat m_format; QVarLengthArray m_updateObservers; QAtomicInt m_needsUpdate = false; + bool m_isSoftwareContext = false; #ifndef QT_NO_DEBUG_STREAM friend QDebug operator<<(QDebug debug, const QCocoaGLContext *screen); diff --git a/src/plugins/platforms/cocoa/qcocoaglcontext.mm b/src/plugins/platforms/cocoa/qcocoaglcontext.mm index bfac716b633..2f0f513dfc1 100644 --- a/src/plugins/platforms/cocoa/qcocoaglcontext.mm +++ b/src/plugins/platforms/cocoa/qcocoaglcontext.mm @@ -289,6 +289,9 @@ void QCocoaGLContext::updateSurfaceFormat() else m_format.setSwapBehavior(QSurfaceFormat::SingleBuffer); + m_isSoftwareContext = (pixelFormatAttribute(NSOpenGLPFARendererID) + & kCGLRendererIDMatchingMask) == kCGLRendererGenericFloatID; + // ------------------- Query the context ------------------- auto glContextParameter = [&](NSOpenGLContextParameter parameter) { @@ -512,6 +515,11 @@ bool QCocoaGLContext::isSharing() const return m_shareContext != nil; } +bool QCocoaGLContext::isSoftwareContext() const +{ + return m_isSoftwareContext; +} + NSOpenGLContext *QCocoaGLContext::nativeContext() const { return m_context; diff --git a/src/plugins/platforms/cocoa/qcocoaintegration.mm b/src/plugins/platforms/cocoa/qcocoaintegration.mm index 8c6dcfd4f60..4c5975af34a 100644 --- a/src/plugins/platforms/cocoa/qcocoaintegration.mm +++ b/src/plugins/platforms/cocoa/qcocoaintegration.mm @@ -232,6 +232,24 @@ bool QCocoaIntegration::hasCapability(QPlatformIntegration::Capability cap) cons // layer-backed. return false; case OpenGL: + if (QOperatingSystemVersion::current() > QOperatingSystemVersion::MacOSSonoma) { + // Tahoe has issues with software-backed GL, crashing in common operations + static bool isSoftwareContext = []{ + QOpenGLContext context; + context.create(); + auto *cocoaContext = static_cast(context.handle()); + if (cocoaContext->isSoftwareContext()) { + qWarning() << "Detected software OpenGL backend," + << "which is known to be broken on" + << qUtf8Printable(QSysInfo::prettyProductName()); + return true; + } else { + return false; + } + }(); + return !isSoftwareContext; + } + Q_FALLTHROUGH(); case BufferQueueingOpenGL: #endif case ThreadedPixmaps: -- cgit v1.2.3