macOS: Respect Qt::AA_UseSoftwareOpenGL

Change-Id: Ia83e8e9e571e4f46d2a8d810c376015552755457 Reviewed-by: Morten Johan Sørvig <[email protected]>
dougcooper · Oct 24, 2019 · 312793f · 312793f
1 parent f39230f
commit 312793f
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/plugins/platforms/cocoa/qcocoaglcontext.mm b/src/plugins/platforms/cocoa/qcocoaglcontext.mm
@@ -223,6 +223,12 @@ static inline QByteArray getGlString(GLenum param)
         attrs << NSOpenGLPFAAllowOfflineRenderers;
     }
 
+    if (qGuiApp->testAttribute(Qt::AA_UseSoftwareOpenGL)) {
+        // kCGLRendererGenericFloatID is the modern software renderer on macOS,
+        // as opposed to kCGLRendererGenericID, which is deprecated.
+        attrs << NSOpenGLPFARendererID << kCGLRendererGenericFloatID;
+    }
+
     // FIXME: Pull this information out of the NSView
     QByteArray useLayer = qgetenv("QT_MAC_WANTS_LAYER");
     if (!useLayer.isEmpty() && useLayer.toInt() > 0) {