Add support for decoding to 565 to libjpeg_turbo

simd/jsimd_x86_64.c

Index: simd/jsimd_x86_64.c
diff --git a/simd/jsimd_x86_64.c b/simd/jsimd_x86_64.c
index 98e36b19ff3e9916464f1be81c9d7077181a0427..d6008617c543672069aec4ef14398e4dd4b5b192 100644
--- a/simd/jsimd_x86_64.c
+++ b/simd/jsimd_x86_64.c
@@ -2,7 +2,7 @@
  * jsimd_x86_64.c
  *
  * Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
- * Copyright 2009-2011 D. R. Commander
+ * Copyright 2009-2011, 2014 D. R. Commander
  * 
  * Based on the x86 SIMD extension for IJG JPEG library,
  * Copyright (C) 1999-2006, MIYASAKA Masaru.
@@ -82,6 +82,12 @@ jsimd_can_ycc_rgb (void)
   return 1;
 }
 
+GLOBAL(int)
+jsimd_can_ycc_rgb565 (void)
+{
+  return 0;
+}
+
 #ifndef JPEG_DECODE_ONLY
 GLOBAL(void)
 jsimd_rgb_ycc_convert (j_compress_ptr cinfo,
@@ -201,6 +207,13 @@ jsimd_ycc_rgb_convert (j_decompress_ptr cinfo,
   sse2fct(cinfo->output_width, input_buf, input_row, output_buf, num_rows);
 }
 
+GLOBAL(void)
+jsimd_ycc_rgb565_convert (j_decompress_ptr cinfo,
+                          JSAMPIMAGE input_buf, JDIMENSION input_row,
+                          JSAMPARRAY output_buf, int num_rows)
+{
+}
+
 #ifndef JPEG_DECODE_ONLY
 GLOBAL(int)
 jsimd_can_h2v2_downsample (void)