From: dooglus <dooglus@1f10aa63-cdf2-0310-b900-c93c546f37ac>
Date: Fri, 19 Sep 2008 16:13:02 +0000 (+0000)
Subject: Fix 1960543: "Straight Onto fails in a file".  When an layer was composed 'straight... 
X-Git-Url: https://git.pterodactylus.net/?a=commitdiff_plain;ds=sidebyside;h=f4ed8dcedceaba2eca469b4d4ab8bc216116ad98;p=synfig.git

Fix 1960543: "Straight Onto fails in a file".  When an layer was composed 'straight onto' a context with which its bounding box had no overlap, the context was being displayed as if the 'straight onto' layer wasn't there.


git-svn-id: https://synfig.svn.sourceforge.net/svnroot/synfig@2060 1f10aa63-cdf2-0310-b900-c93c546f37ac
---

diff --git a/synfig-core/trunk/src/synfig/layer_pastecanvas.cpp b/synfig-core/trunk/src/synfig/layer_pastecanvas.cpp
index 572aee2..e456a03 100644
--- a/synfig-core/trunk/src/synfig/layer_pastecanvas.cpp
+++ b/synfig-core/trunk/src/synfig/layer_pastecanvas.cpp
@@ -395,8 +395,10 @@ Layer_PasteCanvas::accelerated_render(Context context,Surface *surface,int quali
 
 	if (!etl::intersect(context.get_full_bounding_rect(),full_bounding_rect+origin))
 	{
-		// if there's no intersection between the context and our surface, and we're rendering 'onto', then we're done
-		if (Color::is_onto(blend_method)) return true;
+		// if there's no intersection between the context and our
+		// surface, and we're rendering 'onto', then we're done
+		if (Color::is_onto(blend_method) && !Color::is_straight(blend_method))
+			return true;
 
 		/* 'straight' is faster than 'composite' and has the same
 		 * effect if the affected area of the lower layer is