Integrate premultiply/unpremultiply operations into libjpeg-turbo....

third_party/libjpeg_turbo/simd/jsimd_i386.c

 /*
  * jsimd_i386.c
  *
  * Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
  * Copyright 2009 D. R. Commander
  * 
  * Based on the x86 SIMD extension for IJG JPEG library,
  * Copyright (C) 1999-2006, MIYASAKA Masaru.
  *
  * This file contains the interface between the "normal" portions
@@ skipping 120 matching lines @@
       mmxfct=jsimd_extbgrx_ycc_convert_mmx;
       break;
     case JCS_EXT_XBGR:
       sse2fct=jsimd_extxbgr_ycc_convert_sse2;
       mmxfct=jsimd_extxbgr_ycc_convert_mmx;
       break;
     case JCS_EXT_XRGB:
       sse2fct=jsimd_extxrgb_ycc_convert_sse2;
       mmxfct=jsimd_extxrgb_ycc_convert_mmx;
       break;
+    case JCS_EXT_BGRA:
+      sse2fct=jsimd_extbgra_ycc_convert_sse2;
+      mmxfct=jsimd_extbgrx_ycc_convert_mmx;
+      break;
     default:
       sse2fct=jsimd_rgb_ycc_convert_sse2;
       mmxfct=jsimd_rgb_ycc_convert_mmx;
       break;
   }
 
   if ((simd_support & JSIMD_SSE2) &&
       IS_ALIGNED_SSE(jconst_rgb_ycc_convert_sse2))
     sse2fct(cinfo->image_width, input_buf,
         output_buf, output_row, num_rows);
@@ skipping 795 matching lines @@
   if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_float_sse2))
     jsimd_idct_float_sse2(compptr->dct_table, coef_block,
         output_buf, output_col);
   else if ((simd_support & JSIMD_SSE) && IS_ALIGNED_SSE(jconst_idct_float_sse))
     jsimd_idct_float_sse(compptr->dct_table, coef_block,
         output_buf, output_col);
   else if (simd_support & JSIMD_3DNOW)
     jsimd_idct_float_3dnow(compptr->dct_table, coef_block,
         output_buf, output_col);
 }
-