Update libjpeg-turbo to 1.2.

jdcolor.c

 /*
  * jdcolor.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
  * Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
  * 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.
  *
  * This file contains output colorspace conversion routines.
@@ skipping 206 matching lines @@
 ycc_rgb_convert (j_decompress_ptr cinfo,
                  JSAMPIMAGE input_buf, JDIMENSION input_row,
                  JSAMPARRAY output_buf, int num_rows)
 {
   switch (cinfo->out_color_space) {
     case JCS_EXT_RGB:
       ycc_extrgb_convert_internal(cinfo, input_buf, input_row, output_buf,
                                   num_rows);
       break;
     case JCS_EXT_RGBX:
+    case JCS_EXT_RGBA:
       ycc_extrgbx_convert_internal(cinfo, input_buf, input_row, output_buf,
                                    num_rows);
       break;
     case JCS_EXT_BGR:
       ycc_extbgr_convert_internal(cinfo, input_buf, input_row, output_buf,
                                   num_rows);
       break;
     case JCS_EXT_BGRX:
+    case JCS_EXT_BGRA:
       ycc_extbgrx_convert_internal(cinfo, input_buf, input_row, output_buf,
                                    num_rows);
       break;
     case JCS_EXT_XBGR:
+    case JCS_EXT_ABGR:
       ycc_extxbgr_convert_internal(cinfo, input_buf, input_row, output_buf,
                                    num_rows);
       break;
     case JCS_EXT_XRGB:
+    case JCS_EXT_ARGB:
       ycc_extxrgb_convert_internal(cinfo, input_buf, input_row, output_buf,
                                    num_rows);
       break;
     default:
       ycc_rgb_convert_internal(cinfo, input_buf, input_row, output_buf,
                                num_rows);
       break;
   }
 }
 
@@ skipping 56 matching lines @@
 gray_rgb_convert (j_decompress_ptr cinfo,
                   JSAMPIMAGE input_buf, JDIMENSION input_row,
                   JSAMPARRAY output_buf, int num_rows)
 {
   switch (cinfo->out_color_space) {
     case JCS_EXT_RGB:
       gray_extrgb_convert_internal(cinfo, input_buf, input_row, output_buf,
                                    num_rows);
       break;
     case JCS_EXT_RGBX:
+    case JCS_EXT_RGBA:
       gray_extrgbx_convert_internal(cinfo, input_buf, input_row, output_buf,
                                     num_rows);
       break;
     case JCS_EXT_BGR:
       gray_extbgr_convert_internal(cinfo, input_buf, input_row, output_buf,
                                    num_rows);
       break;
     case JCS_EXT_BGRX:
+    case JCS_EXT_BGRA:
       gray_extbgrx_convert_internal(cinfo, input_buf, input_row, output_buf,
                                     num_rows);
       break;
     case JCS_EXT_XBGR:
+    case JCS_EXT_ABGR:
       gray_extxbgr_convert_internal(cinfo, input_buf, input_row, output_buf,
                                     num_rows);
       break;
     case JCS_EXT_XRGB:
+    case JCS_EXT_ARGB:
       gray_extxrgb_convert_internal(cinfo, input_buf, input_row, output_buf,
                                     num_rows);
       break;
     default:
       gray_rgb_convert_internal(cinfo, input_buf, input_row, output_buf,
                                 num_rows);
       break;
   }
 }
 
@@ skipping 119 matching lines @@
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
     break;
 
   case JCS_RGB:
   case JCS_EXT_RGB:
   case JCS_EXT_RGBX:
   case JCS_EXT_BGR:
   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];
     if (cinfo->jpeg_color_space == JCS_YCbCr) {
       if (jsimd_can_ycc_rgb())
         cconvert->pub.color_convert = jsimd_ycc_rgb_convert;
       else {
         cconvert->pub.color_convert = ycc_rgb_convert;
         build_ycc_rgb_table(cinfo);
       }
     } else if (cinfo->jpeg_color_space == JCS_GRAYSCALE) {
       cconvert->pub.color_convert = gray_rgb_convert;
@@ skipping 23 matching lines @@
     } else                      /* unsupported non-null conversion */
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
     break;
   }
 
   if (cinfo->quantize_colors)
     cinfo->output_components = 1; /* single colormapped output component */
   else
     cinfo->output_components = cinfo->out_color_components;
 }