diff -r b72c6db6890b -r 5dc02b23752f src/3rdparty/libjpeg/jdapimin.c
--- a/src/3rdparty/libjpeg/jdapimin.c	Wed Jun 23 19:07:03 2010 +0300
+++ b/src/3rdparty/libjpeg/jdapimin.c	Tue Jul 06 15:10:48 2010 +0300
@@ -2,6 +2,7 @@
  * jdapimin.c
  *
  * Copyright (C) 1994-1998, Thomas G. Lane.
+ * Modified 2009 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -185,8 +186,8 @@
   }
 
   /* Set defaults for other decompression parameters. */
-  cinfo->scale_num = 1;		/* 1:1 scaling */
-  cinfo->scale_denom = 1;
+  cinfo->scale_num = cinfo->block_size;		/* 1:1 scaling */
+  cinfo->scale_denom = cinfo->block_size;
   cinfo->output_gamma = 1.0;
   cinfo->buffered_image = FALSE;
   cinfo->raw_data_out = FALSE;