[gegl] gegl/buffer: do float adapted compare with 1.0

[Øyvind Kolås <ok src gnome org>]

commit 0b601e5b22614f9bfe81464327d7f68325699a7f
Author: Øyvind Kolås <pippin gimp org>
Date:   Tue Dec 26 22:31:38 2017 +0100

    gegl/buffer: do float adapted compare with 1.0

 gegl/buffer/gegl-buffer-access.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gegl/buffer/gegl-buffer-access.c b/gegl/buffer/gegl-buffer-access.c
index 0f01c97..931142e 100644
--- a/gegl/buffer/gegl-buffer-access.c
+++ b/gegl/buffer/gegl-buffer-access.c
@@ -1414,7 +1414,7 @@ _gegl_buffer_get_unlocked (GeglBuffer          *buffer,
   if (format == NULL)
     format = buffer->soft_format;
 
-  if (scale == 1.0 &&
+  if (GEGL_FLOAT_EQUAL (scale, 1.0) &&
       rect &&
       rect->width == 1 &&
       rect->height == 1)