[gtk+/gtk-2-18] Set scale_num only once

[Matthias Clasen <matthiasc src gnome org>]

commit c412fc78d03ca67ab0b75eb98a45179beccab968
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Nov 25 23:39:31 2009 -0500

    Set scale_num only once
    
    This modifies the previous commit to be according the upstream libjpeg
    maintainers recommendations. See bug 588740.

 gdk-pixbuf/io-jpeg.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gdk-pixbuf/io-jpeg.c b/gdk-pixbuf/io-jpeg.c
index 5d63af3..10b298d 100644
--- a/gdk-pixbuf/io-jpeg.c
+++ b/gdk-pixbuf/io-jpeg.c
@@ -921,8 +921,8 @@ gdk_pixbuf__jpeg_image_load_increment (gpointer data,
 				}
 			}
 			
+			cinfo->scale_num = 1;
 			for (cinfo->scale_denom = 2; cinfo->scale_denom <= 8; cinfo->scale_denom *= 2) {
-				cinfo->scale_num = 1;
 				jpeg_calc_output_dimensions (cinfo);
 				if (cinfo->output_width < width || cinfo->output_height < height) {
 					cinfo->scale_denom /= 2;