[gegl] Raw load (libraw): bounding box correction for rotated images

[Øyvind Kolås <ok src gnome org>]

commit 14d71e541270d0248f4307d3701c26759673205b
Author: Jean-Baptiste Mayer <jean-baptiste mayer m4x org>
Date:   Mon Sep 5 18:47:10 2016 +0100

    Raw load (libraw): bounding box correction for rotated images
    
    Fixed bug: 770917

 operations/external/raw-load.c |   14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)
---
diff --git a/operations/external/raw-load.c b/operations/external/raw-load.c
index 30f9498..3b71376 100644
--- a/operations/external/raw-load.c
+++ b/operations/external/raw-load.c
@@ -147,8 +147,18 @@ get_bounding_box (GeglOperation *operation)
   if (p->LibRaw != NULL &&
       (p->LibRaw->progress_flags & LIBRAW_PROGRESS_IDENTIFY)) 
     {
-      result.width  = p->LibRaw->sizes.width;
-      result.height = p->LibRaw->sizes.height;
+      switch (p->LibRaw->sizes.flip)
+      {
+        case 5:
+        case 6:
+          result.width  = p->LibRaw->sizes.height;
+          result.height = p->LibRaw->sizes.width;
+          break;
+        default:
+          result.width  = p->LibRaw->sizes.width;
+          result.height = p->LibRaw->sizes.height;
+          break;
+      }
       gegl_operation_set_format (operation, "output", babl_format ("R'G'B' u16"));
     }