[gegl] operations/common-gpl3+: s/_context_get_source/_context_dup_object/

[Øyvind Kolås <ok src gnome org>]

commit cbd54f0c0cc02c2a153532c800ad7fc86627ce38
Author: Øyvind Kolås <pippin gimp org>
Date:   Tue Nov 21 19:58:00 2017 +0100

    operations/common-gpl3+: s/_context_get_source/_context_dup_object/

 operations/common-gpl3+/displace.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/operations/common-gpl3+/displace.c b/operations/common-gpl3+/displace.c
index 758853b..c740d33 100644
--- a/operations/common-gpl3+/displace.c
+++ b/operations/common-gpl3+/displace.c
@@ -431,8 +431,8 @@ operation_process (GeglOperation        *operation,
   GeglBuffer     *output;
   gboolean        success;
 
-  aux   = gegl_operation_context_get_source (context, "aux");
-  aux2  = gegl_operation_context_get_source (context, "aux2");
+  aux   = (GeglBuffer*) gegl_operation_context_dup_object (context, "aux");
+  aux2  = (GeglBuffer*) gegl_operation_context_dup_object (context, "aux2");
 
   if ((!aux && !aux2) ||
       (GEGL_FLOAT_IS_ZERO (o->amount_x) && GEGL_FLOAT_IS_ZERO (o->amount_y)))
@@ -444,7 +444,7 @@ operation_process (GeglOperation        *operation,
     }
   else
     {
-      input = gegl_operation_context_get_source (context, "input");
+      input  = (GeglBuffer*) gegl_operation_context_dup_object (context, "input");
       output = gegl_operation_context_get_target (context, "output");
 
       success = process (operation, input, aux, aux2, output, result, level);