Make it possible to disable partial update at runtime

This makes it possible to disable the partial updates and the swap buffers with damage at runtime.
5 years ago · 870679e46f
parent 70393eec6f
commit 870679e46f
1 changed files with 6 additions and 1 deletions
--- a/platformsupport/scenes/opengl/abstract_egl_backend.cpp
+++ b/platformsupport/scenes/opengl/abstract_egl_backend.cpp
@ -185,7 +185,12 @@ void AbstractEglBackend::initBufferAge()
            setSupportsBufferAge(true);
    }

-    setSupportsPartialUpdate(hasExtension(QByteArrayLiteral("EGL_KHR_partial_update")));
+    if (hasExtension(QByteArrayLiteral("EGL_KHR_partial_update"))) {
+        const QByteArray usePartialUpdate = qgetenv("KWIN_USE_PARTIAL_UPDATE");
+        if (usePartialUpdate != "0") {
+            setSupportsPartialUpdate(true);
+        }
+    }
    setSupportsSwapBuffersWithDamage(hasExtension(QByteArrayLiteral("EGL_EXT_swap_buffers_with_damage")));
 }