[mutter] stage: Paint the untransformed swap region

[Marge Bot <marge-bot src gnome org>]

commit 73695995a77c823fd05f13300ed12fdee84cc8a1
Author: Sebastian Wick <sebastian wick redhat com>
Date:   Mon Aug 22 13:08:53 2022 +0200

    stage: Paint the untransformed swap region
    
    Painting the swap region with CLUTTER_DEBUG_PAINT_DAMAGE_REGION happens
    on the view framebuffer, so don't transform the region we paint to the
    onscreen.
    
    Fixes the swap region painting on rotated monitors.
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2590>

 src/backends/meta-stage-impl.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)
---
diff --git a/src/backends/meta-stage-impl.c b/src/backends/meta-stage-impl.c
index b3f60645ab..ca6f1f44f4 100644
--- a/src/backends/meta-stage-impl.c
+++ b/src/backends/meta-stage-impl.c
@@ -633,17 +633,6 @@ meta_stage_impl_redraw_view_primary (MetaStageImpl    *stage_impl,
   COGL_TRACE_BEGIN_SCOPED (MetaStageImplRedrawViewSwapFramebuffer,
                            "Paint (swap framebuffer)");
 
-  if (clutter_stage_view_get_onscreen (stage_view) !=
-      clutter_stage_view_get_framebuffer (stage_view))
-    {
-      cairo_region_t *transformed_swap_region;
-
-      transformed_swap_region =
-        transform_swap_region_to_onscreen (stage_view, swap_region);
-      cairo_region_destroy (swap_region);
-      swap_region = transformed_swap_region;
-    }
-
   if (queued_redraw_clip)
     {
       cairo_region_t *swap_region_in_stage_space;
@@ -663,6 +652,17 @@ meta_stage_impl_redraw_view_primary (MetaStageImpl    *stage_impl,
       cairo_region_destroy (swap_region_in_stage_space);
     }
 
+  if (clutter_stage_view_get_onscreen (stage_view) !=
+      clutter_stage_view_get_framebuffer (stage_view))
+    {
+      cairo_region_t *transformed_swap_region;
+
+      transformed_swap_region =
+        transform_swap_region_to_onscreen (stage_view, swap_region);
+      cairo_region_destroy (swap_region);
+      swap_region = transformed_swap_region;
+    }
+
   swap_framebuffer (stage_window,
                     stage_view,
                     swap_region,