[gegl] gcut: use new buffer iterator api

[Øyvind "pippin" Kolås <ok src gnome org>]

commit 37092fc81194d0216a8163e3b789b3961c3ba5eb
Author: Øyvind Kolås <pippin gimp org>
Date:   Mon Sep 10 17:22:05 2018 +0200

    gcut: use new buffer iterator api

 gcut/iconographer.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/gcut/iconographer.c b/gcut/iconographer.c
index 25d77cf99..c7e25f4cd 100644
--- a/gcut/iconographer.c
+++ b/gcut/iconographer.c
@@ -14,6 +14,7 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#define GEGL_ITERATOR2_API
 #define main iconographer_main
 
 #include <gegl.h>
@@ -434,7 +435,7 @@ static void record_pix_stats (GeglBuffer *buffer, GeglBuffer *previous_buffer,
   GeglBufferIterator *it = gegl_buffer_iterator_new (buffer, NULL, 0,
           babl_format ("R'G'B' u8"),
           GEGL_BUFFER_READ,
-          GEGL_ABYSS_NONE);
+          GEGL_ABYSS_NONE, 3);
   if (previous_video_frame)
     gegl_buffer_iterator_add (it, previous_buffer, NULL, 0,
           babl_format ("R'G'B' u8"),
@@ -446,7 +447,7 @@ static void record_pix_stats (GeglBuffer *buffer, GeglBuffer *previous_buffer,
 
   while (gegl_buffer_iterator_next (it))
   {
-    uint8_t *data = (void*)it->data[0];
+    uint8_t *data = (void*)it->items[0].data;
     int i;
     if (strstr (format, "histogram"))
     {
@@ -474,7 +475,7 @@ static void record_pix_stats (GeglBuffer *buffer, GeglBuffer *previous_buffer,
   
       if (previous_buffer)
       {
-        uint8_t *data_prev = (void*)it->data[1];
+        uint8_t *data_prev = (void*)it->items[1].data;
         int i;
         for (i = 0; i < it->length; i++)
         {