From cab21271fa53b9a87f5d36ebba192894dc18d7f4 Mon Sep 17 00:00:00 2001
From: Michael Natterer <mitch@gimp.org>
Date: Wed, 21 Mar 2012 18:58:17 +0100
Subject: [PATCH] app: add gimp_gegl_buffer_dup() which creates a TileManager
 backed dup

---
 app/gegl/gimp-gegl-utils.c | 19 +++++++++++++++++++
 app/gegl/gimp-gegl-utils.h |  2 ++
 2 files changed, 21 insertions(+)

diff --git a/app/gegl/gimp-gegl-utils.c b/app/gegl/gimp-gegl-utils.c
index 6c993b7993..9889524f4b 100644
--- a/app/gegl/gimp-gegl-utils.c
+++ b/app/gegl/gimp-gegl-utils.c
@@ -218,6 +218,25 @@ gimp_gegl_buffer_new (const GeglRectangle *rect,
   return buffer;
 }
 
+GeglBuffer *
+gimp_gegl_buffer_dup (GeglBuffer *buffer)
+{
+  const Babl  *format = gegl_buffer_get_format (buffer);
+  TileManager *tiles;
+  GeglBuffer  *dup;
+
+  tiles = tile_manager_new (gegl_buffer_get_width (buffer),
+                            gegl_buffer_get_height (buffer),
+                            babl_format_get_bytes_per_pixel (format));
+
+  dup = gimp_tile_manager_create_buffer (tiles, format);
+  tile_manager_unref (tiles);
+
+  gegl_buffer_copy (buffer, NULL, dup, NULL);
+
+  return dup;
+}
+
 GeglBuffer *
 gimp_tile_manager_create_buffer (TileManager *tm,
                                  const Babl  *format)
diff --git a/app/gegl/gimp-gegl-utils.h b/app/gegl/gimp-gegl-utils.h
index 70034fa2fb..a61235c834 100644
--- a/app/gegl/gimp-gegl-utils.h
+++ b/app/gegl/gimp-gegl-utils.h
@@ -35,6 +35,8 @@ const gchar * gimp_interpolation_to_gegl_filter  (GimpInterpolationType  interpo
 
 GeglBuffer  * gimp_gegl_buffer_new               (const GeglRectangle   *rect,
                                                   const Babl            *format);
+GeglBuffer  * gimp_gegl_buffer_dup               (GeglBuffer            *buffer);
+
 GeglBuffer  * gimp_tile_manager_create_buffer    (TileManager           *tm,
                                                   const Babl            *format);
 TileManager * gimp_gegl_buffer_get_tiles         (GeglBuffer            *buffer);