X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftrunk%2Fsrc%2Fsynfig%2Fcontext.cpp;h=9ac1020df4d203ac2b3936458a36a131f549e7fc;hb=2f015c519aa92f29144873527c109c21c171c6a7;hp=3bd36b7ead718ba24cb4b5cceea7f810b861a59e;hpb=2147b77cbf12e45a2f956240bffbda9b45fb354c;p=synfig.git

diff --git a/synfig-core/trunk/src/synfig/context.cpp b/synfig-core/trunk/src/synfig/context.cpp
index 3bd36b7..9ac1020 100644
--- a/synfig-core/trunk/src/synfig/context.cpp
+++ b/synfig-core/trunk/src/synfig/context.cpp
@@ -202,7 +202,7 @@ Context::accelerated_render(Surface *surface,int quality, const RendDesc &rendde
 		if(layer_bounds.area() <= 0.0000000000001 || !(layer_bounds && bbox))
 		{
 			if (composite &&
-				composite->get_blend_method() == Color::BLEND_STRAIGHT &&
+				Color::is_straight(composite->get_blend_method()) &&
 				composite->get_amount() != 0.0f)
 			{
 				straight_and_empty = true;
@@ -211,18 +211,18 @@ Context::accelerated_render(Surface *surface,int quality, const RendDesc &rendde
 			continue;
 		}
 
-// the following breaks the blur layer when used with the straight blend method
-// in that case we do want to render the context, to know what to blur
-//
-//		// If this layer has Straight as the blend method and amount is 1.0
-//		// then we don't want to render the context
-//		if (composite && composite->get_blend_method() == Color::BLEND_STRAIGHT &&
-//			composite->get_amount() == 1.0f)
-//		{
-//			Layer::Handle layer = *context;
-//			while (!context->empty()) context++; // skip the context
-//			return layer->accelerated_render(context,surface,quality,renddesc, cb);
-//		}
+		// If this layer has Straight as the blend method and amount
+		// is 1.0, and the layer doesn't depend on its context, then
+		// we don't want to render the context
+		if (composite &&
+			composite->get_blend_method() == Color::BLEND_STRAIGHT &&
+			composite->get_amount() == 1.0f &&
+			!composite->reads_context())
+		{
+			Layer::Handle layer = *context;
+			while (!context->empty()) context++; // skip the context
+			return layer->accelerated_render(context,surface,quality,renddesc, cb);
+		}
 
 		// Break out of the loop--we have found a good layer
 		break;
@@ -264,7 +264,7 @@ Context::accelerated_render(Surface *surface,int quality, const RendDesc &rendde
 	// using the appropriate 'amount'
 	if (straight_and_empty)
 	{
-		if (ret = Context((context+1)).accelerated_render(surface,quality,renddesc,cb))
+		if ((ret = Context((context+1)).accelerated_render(surface,quality,renddesc,cb)))
 		{
 			Surface clearsurface;
 			clearsurface.set_wh(renddesc.get_w(),renddesc.get_h());
@@ -272,7 +272,7 @@ Context::accelerated_render(Surface *surface,int quality, const RendDesc &rendde
 
 			Surface::alpha_pen apen(surface->begin());
 			apen.set_alpha(composite->get_amount());
-			apen.set_blend_method(Color::BLEND_STRAIGHT);
+			apen.set_blend_method(composite->get_blend_method());
 
 			clearsurface.blit_to(apen);
 		}