[gegl] gegl-parallel: add distribute_area() overload without split-strategy

[Ell <ell src gnome org>]

commit 15fa66d3237f2180ae31e830a8384223ddc98807
Author: Ell <ell_se yahoo com>
Date:   Wed Nov 14 10:33:19 2018 -0500

    gegl-parallel: add distribute_area() overload without split-strategy
    
    When using C++, provide a gegl_parallel_distribute_area() overload
    that doesn't take a GeglSplitStrategy argument, and uses the
    GEGL_SPLIT_STRATEGY_AUTO strategy, which is the most common case.

 gegl/gegl-parallel.h | 10 ++++++++++
 1 file changed, 10 insertions(+)
---
diff --git a/gegl/gegl-parallel.h b/gegl/gegl-parallel.h
index 23cf04d6c..493ccdc5e 100644
--- a/gegl/gegl-parallel.h
+++ b/gegl/gegl-parallel.h
@@ -181,6 +181,16 @@ gegl_parallel_distribute_area (const GeglRectangle        *area,
                                  &func);
 }
 
+template <class ParallelDistributeAreaFunc>
+inline void
+gegl_parallel_distribute_area (const GeglRectangle        *area,
+                               gdouble                     thread_cost,
+                               ParallelDistributeAreaFunc  func)
+{
+  gegl_parallel_distribute_area (area, thread_cost, GEGL_SPLIT_STRATEGY_AUTO,
+                                 func);
+}
+
 }
 
 #endif /* __cplusplus */