Update libjpeg-turbo to 1.2.

jdmaster.c

Index: jdmaster.c
===================================================================
--- jdmaster.c	(revision 111873)
+++ jdmaster.c	(working copy)
@@ -2,7 +2,7 @@
  * jdmaster.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
- * Copyright (C) 2009-2010, D. R. Commander.
+ * Copyright (C) 2009-2011, D. R. Commander.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -57,7 +57,11 @@
       cinfo->out_color_space != JCS_EXT_BGR &&
       cinfo->out_color_space != JCS_EXT_BGRX &&
       cinfo->out_color_space != JCS_EXT_XBGR &&
-      cinfo->out_color_space != JCS_EXT_XRGB) ||
+      cinfo->out_color_space != JCS_EXT_XRGB &&
+      cinfo->out_color_space != JCS_EXT_RGBA &&
+      cinfo->out_color_space != JCS_EXT_BGRA &&
+      cinfo->out_color_space != JCS_EXT_ABGR &&
+      cinfo->out_color_space != JCS_EXT_ARGB) ||
       cinfo->out_color_components != rgb_pixelsize[cinfo->out_color_space])
     return FALSE;
   /* and it only handles 2h1v or 2h2v sampling ratios */
@@ -209,6 +213,10 @@
   case JCS_EXT_BGRX:
   case JCS_EXT_XBGR:
   case JCS_EXT_XRGB:
+  case JCS_EXT_RGBA:
+  case JCS_EXT_BGRA:
+  case JCS_EXT_ABGR:
+  case JCS_EXT_ARGB:
     cinfo->out_color_components = rgb_pixelsize[cinfo->out_color_space];
     break;
   case JCS_YCbCr: