upgrade openjpeg to commit# cf352af

third_party/libopenjpeg20/pi.h

 /*
  * The copyright in this software is being made available under the 2-clauses 
  * BSD License, included below. This software may be subject to other third 
  * party and contributor rights, including patent rights, and no such rights
  * are granted under this license.
  *
  * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
  * Copyright (c) 2002-2014, Professor Benoit Macq
  * Copyright (c) 2001-2003, David Janssens
  * Copyright (c) 2002-2003, Yannick Verschueren
@@ skipping 55 matching lines @@
   OPJ_UINT32 numresolutions;
   opj_pi_resolution_t *resolutions;
 } opj_pi_comp_t;
 
 /**
 Packet iterator
 */
 typedef struct opj_pi_iterator {
   /** Enabling Tile part generation*/
   OPJ_BYTE tp_on;
-  /** precise if the packet has been already used (usefull for progression order change) */
+  /** precise if the packet has been already used (useful for progression order change) */
   OPJ_INT16 *include;
   /** layer step used to localize the packet in the include vector */
   OPJ_UINT32 step_l;
   /** resolution step used to localize the packet in the include vector */
   OPJ_UINT32 step_r;
   /** component step used to localize the packet in the include vector */
   OPJ_UINT32 step_c;
   /** precinct step used to localize the packet in the include vector */
   OPJ_UINT32 step_p;
   /** component that identify the packet */
@@ skipping 92 matching lines @@
 @param pi Packet iterator to modify
 @return Returns false if pi pointed to the last packet or else returns true
 */
 OPJ_BOOL opj_pi_next(opj_pi_iterator_t * pi);
 /* ----------------------------------------------------------------------- */
 /*@}*/
 
 /*@}*/
 
 #endif /* __PI_H */