[gimp] gimp:cage-transform : prepare optimisation for when the Gegl bug #645810 is solved

[Michael Muré <mmure src gnome org>]

commit 24c117082f3f96a8143db4ddf9a81c0b188182e0
Author: Michael Muré <batolettre gmail com>
Date:   Sun Mar 27 11:34:17 2011 +0200

    gimp:cage-transform : prepare optimisation for when the Gegl bug #645810 is solved

 app/gegl/gimpoperationcagetransform.c |   18 ++++++++++++------
 1 files changed, 12 insertions(+), 6 deletions(-)
---
diff --git a/app/gegl/gimpoperationcagetransform.c b/app/gegl/gimpoperationcagetransform.c
index 0d48aa3..64f613c 100644
--- a/app/gegl/gimpoperationcagetransform.c
+++ b/app/gegl/gimpoperationcagetransform.c
@@ -537,17 +537,23 @@ gimp_cage_transform_compute_destination (GimpCageConfig *config,
                                          GimpVector2     coords)
 {
   gdouble        pos_x, pos_y;
-  GeglRectangle  rect;
   GimpVector2    result;
   gint           cvn = config->n_cage_vertices;
   gint           i;
 
-  rect.height = 1;
-  rect.width  = 1;
-  rect.x      = coords.x;
-  rect.y      = coords.y;
+  /* When Gegl bug #645810 will be solved, this should be a good optimisation */
+  #ifdef GEGL_BUG_645810_SOLVED
+    gegl_buffer_sample (coef_buf, coords.x, coords.y, 1.0, coef, format_coef, GEGL_INTERPOLATION_LANCZOS);
+  #else
+    GeglRectangle  rect;
 
-  gegl_buffer_get (coef_buf, 1, &rect, format_coef, coef, GEGL_AUTO_ROWSTRIDE);
+    rect.height = 1;
+    rect.width  = 1;
+    rect.x      = coords.x;
+    rect.y      = coords.y;
+
+    gegl_buffer_get (coef_buf, 1, &rect, format_coef, coef, GEGL_AUTO_ROWSTRIDE);
+  #endif
 
   pos_x = 0;
   pos_y = 0;