[clip] Avoid copying region within _cairo_clip_intersect_region()

Within _cairo_clip_intersect_region() we can simply assign the freshly
extracted traps-region if we previously had no region set.

1 files changed, 3 insertions, 9 deletions

diff --git a/src/cairo-clip.c b/src/cairo-clip.c
index bb04a9e2..5edc1243 100644
--- a/src/cairo-clip.c
+++ b/src/cairo-clip.c
@@ -336,17 +336,11 @@ _cairo_clip_intersect_region (cairo_clip_t    *clip,
 
     if (clip->region) {
 	status = cairo_region_intersect (clip->region, region);
-    } else {
-	clip->region = cairo_region_copy (region);
-
-	assert (clip->region != NULL);
-	
-        if ((status = cairo_region_status (clip->region)))
-	    clip->region = NULL;
-    }
+	cairo_region_destroy (region);
+    } else
+	clip->region = region;
 
     clip->serial = _cairo_surface_allocate_clip_serial (target);
-    cairo_region_destroy (region);
 
     if (!clip->region || cairo_region_is_empty (clip->region))
 	_cairo_clip_set_all_clipped (clip, target);