Update libjpeg-turbo.

jdhuff.c

 /*
  * jdhuff.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
  * 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 Huffman entropy decoding routines.
  *
@@ skipping 740 matching lines @@
   int usefast = 1;
 
   /* Process restart marker if needed; may have to suspend */
   if (cinfo->restart_interval) {
     if (entropy->restarts_to_go == 0)
       if (! process_restart(cinfo))
         return FALSE;
     usefast = 0;
   }
 
-  if (cinfo->src->bytes_in_buffer < BUFSIZE * cinfo->blocks_in_MCU
+  if (cinfo->src->bytes_in_buffer < BUFSIZE * (size_t)cinfo->blocks_in_MCU
     || cinfo->unread_marker != 0)
     usefast = 0;
 
   /* If we've run out of data, just leave the MCU set to zeroes.
    * This way, we return uniform gray for the remainder of the segment.
    */
   if (! entropy->pub.insufficient_data) {
 
     if (usefast) {
       if (!decode_mcu_fast(cinfo, MCU_data)) goto use_slow;
@@ skipping 27 matching lines @@
                                 SIZEOF(huff_entropy_decoder));
   cinfo->entropy = (struct jpeg_entropy_decoder *) entropy;
   entropy->pub.start_pass = start_pass_huff_decoder;
   entropy->pub.decode_mcu = decode_mcu;
 
   /* Mark tables unallocated */
   for (i = 0; i < NUM_HUFF_TBLS; i++) {
     entropy->dc_derived_tbls[i] = entropy->ac_derived_tbls[i] = NULL;
   }
 }