[mutter] clutter/stage-cogl: Cleanup setting of the damage history

[Jonas Ådahl <jadahl src gnome org>]

commit 43c7a824612ef4285d893599467cb8d7bd71cfe4
Author: Jonas Dreßler <verdre v0yd nl>
Date:   Fri Mar 6 12:59:41 2020 +0100

    clutter/stage-cogl: Cleanup setting of the damage history
    
    Since we now check for the buffer age before setting up the
    fb_clip_region, that region will be set to the full extents of the view
    in case the buffer age is invalid. This in turn means we don't have to
    do this again later and can simply fill the damage history with the
    fb_clip_region that's already set for us.
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1113

 clutter/clutter/cogl/clutter-stage-cogl.c | 27 ++-------------------------
 1 file changed, 2 insertions(+), 25 deletions(-)
---
diff --git a/clutter/clutter/cogl/clutter-stage-cogl.c b/clutter/clutter/cogl/clutter-stage-cogl.c
index 75e5dfa0c..f3745303c 100644
--- a/clutter/clutter/cogl/clutter-stage-cogl.c
+++ b/clutter/clutter/cogl/clutter-stage-cogl.c
@@ -496,17 +496,6 @@ fill_current_damage_history (ClutterStageView *view,
   view_priv->damage_index++;
 }
 
-static void
-fill_current_damage_history_rectangle (ClutterStageView            *view,
-                                       const cairo_rectangle_int_t *rect)
-{
-  cairo_region_t *damage;
-
-  damage = cairo_region_create_rectangle (rect);
-  fill_current_damage_history (view, damage);
-  cairo_region_destroy (damage);
-}
-
 static cairo_region_t *
 transform_swap_region_to_onscreen (ClutterStageView *view,
                                    cairo_region_t   *swap_region)
@@ -657,14 +646,14 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
   swap_with_damage = FALSE;
   if (has_buffer_age)
     {
+      fill_current_damage_history (view, fb_clip_region);
+
       if (use_clipped_redraw)
         {
           cairo_region_t *fb_damage;
           cairo_region_t *view_damage;
           int i;
 
-          fill_current_damage_history (view, fb_clip_region);
-
           fb_damage = cairo_region_create ();
 
           for (i = 1; i <= buffer_age; i++)
@@ -697,18 +686,6 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
 
           swap_with_damage = TRUE;
         }
-      else if (!use_clipped_redraw)
-        {
-          cairo_rectangle_int_t fb_damage;
-
-          fb_damage = (cairo_rectangle_int_t) {
-            .x = 0,
-            .y = 0,
-            .width = ceilf (view_rect.width * fb_scale),
-            .height = ceilf (view_rect.height * fb_scale)
-          };
-          fill_current_damage_history_rectangle (view, &fb_damage);
-        }
     }
 
   if (use_clipped_redraw)