Add support for decoding to 565 to libjpeg_turbo

simd/jsimd_i386.c

Index: simd/jsimd_i386.c
diff --git a/simd/jsimd_i386.c b/simd/jsimd_i386.c
index ad0f7940c0cd3d766a8941bc2fa1f4cda06dc994..47829e9959c7677b776235c78a1384ca33f445d1 100644
--- a/simd/jsimd_i386.c
+++ b/simd/jsimd_i386.c
@@ -2,7 +2,7 @@
  * jsimd_i386.c
  *
  * Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
- * Copyright 2009-2011 D. R. Commander
+ * Copyright 2009-2011, 2013-2014 D. R. Commander
  * 
  * Based on the x86 SIMD extension for IJG JPEG library,
  * Copyright (C) 1999-2006, MIYASAKA Masaru.
@@ -129,6 +129,12 @@ jsimd_can_ycc_rgb (void)
   return 0;
 }
 
+GLOBAL(int)
+jsimd_can_ycc_rgb565 (void)
+{
+  return 0;
+}
+
 #ifndef JPEG_DECODE_ONLY
 GLOBAL(void)
 jsimd_rgb_ycc_convert (j_compress_ptr cinfo,
@@ -185,6 +191,13 @@ jsimd_rgb_ycc_convert (j_compress_ptr cinfo,
 #endif
 
 GLOBAL(void)
+jsimd_ycc_rgb565_convert (j_decompress_ptr cinfo,
+                          JSAMPIMAGE input_buf, JDIMENSION input_row,
+                          JSAMPARRAY output_buf, int num_rows)
+{
+}
+
+GLOBAL(void)
 jsimd_rgb_gray_convert (j_compress_ptr cinfo,
                         JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
                         JDIMENSION output_row, int num_rows)