1 files changed, 10 insertions, 0 deletions
diff --git a/src/plugins/platforms/eglfs/qeglfscontext.cpp b/src/plugins/platforms/eglfs/qeglfscontext.cpp
index 1bb4918948..229ac6bbd9 100644
--- a/src/plugins/platforms/eglfs/qeglfscontext.cpp
+++ b/src/plugins/platforms/eglfs/qeglfscontext.cpp
@@ -91,6 +91,16 @@ void QEglFSContext::destroyTemporaryOffscreenSurface(EGLSurface surface)
     }
 }
 
+void QEglFSContext::runGLChecks()
+{
+    // Note that even though there is an EGL context current here,
+    // QOpenGLContext and QOpenGLFunctions are not yet usable at this stage.
+    const char *renderer = reinterpret_cast<const char *>(glGetString(GL_RENDERER));
+    // Be nice and warn about a common source of confusion.
+    if (renderer && strstr(renderer, "llvmpipe"))
+        qWarning("Running on a software rasterizer (LLVMpipe), expect limited performance.");
+}
+
 void QEglFSContext::swapBuffers(QPlatformSurface *surface)
 {
     // draw the cursor