[gegl] gegl-sampler-access.c: 2^level = 1<<level

[Nicolas Robidoux <nrobidoux src gnome org>]

commit 4dd01cd214d5daaa9252346d44ed83201bcc4414
Author: Nicolas Robidoux <nicolas robidoux gmail com>
Date:   Tue Jun 28 16:34:20 2011 -0400

    gegl-sampler-access.c: 2^level = 1<<level

 gegl/buffer/gegl-buffer-access.c |    7 +------
 1 files changed, 1 insertions(+), 6 deletions(-)
---
diff --git a/gegl/buffer/gegl-buffer-access.c b/gegl/buffer/gegl-buffer-access.c
index 81c9483..d18b959 100644
--- a/gegl/buffer/gegl-buffer-access.c
+++ b/gegl/buffer/gegl-buffer-access.c
@@ -343,7 +343,7 @@ gegl_buffer_iterate (GeglBuffer          *buffer,
   gint  abyss_x_total  = buffer_abyss_x + buffer->abyss.width;
   gint  abyss_y_total  = buffer_abyss_y + buffer->abyss.height;
   gint  i;
-  gint  factor = 1;
+  gint  factor = 1<<level;
 
   /* roi specified, override buffers extent */
   if (roi)
@@ -354,11 +354,6 @@ gegl_buffer_iterate (GeglBuffer          *buffer,
       buffer_y = roi->y + buffer_shift_y;
     }
 
-  for (i = 0; i < level; i++)
-    {
-      factor *= 2;
-    }
-
   buffer_abyss_x /= factor;
   buffer_abyss_y /= factor;
   abyss_x_total  /= factor;