vchoi_fork

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

 * Copyright by The HDF Group.                                               *

 * Copyright by the Board of Trustees of the University of Illinois.         *

 * All rights reserved.                                                      *

 *                                                                           *

 * This file is part of HDF5.  The full HDF5 copyright notice, including     *

 * terms governing use, modification, and redistribution, is contained in    *

 * the files COPYING and Copyright.html.  COPYING can be found at the root   *

 * of the source code distribution tree; Copyright.html can be found at the  *

 * root level of an installed copy of the electronic HDF5 document set and   *

 * is linked from the top-level documents page.  It can also be found at     *

 * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *

 * access to either file, you may request a copy from help@hdfgroup.org.     *

 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

​

#define H5Z_PACKAGE     /*suppress error about including H5Zpkg   */

​

#include "H5private.h"      /* Generic Functions            */

#include "H5Eprivate.h"     /* Error handling           */

#include "H5MMprivate.h"    /* Memory management            */

#include "H5Ppublic.h"      /* Property lists           */

#include "H5Oprivate.h"         /* Object headers                       */

#include "H5Tpublic.h"      /* Datatype functions           */

#include "H5Zpkg.h"     /* Data filters             */

​

#ifdef H5_HAVE_FILTER_NBIT

​

/* Struct of parameters needed for compressing/decompressing

 * one nbit atomic datatype: integer or floating-point

 */

typedef struct {

   size_t size;   /* size of datatype */

   int order;     /* datatype endianness order */

   int precision; /* datatype precision */

   int offset;    /* datatype offset */

} parms_atomic;

​

/* Local function prototypes */

static herr_t H5Z_can_apply_nbit(hid_t dcpl_id, hid_t type_id, hid_t space_id);

static herr_t H5Z_set_local_nbit(hid_t dcpl_id, hid_t type_id, hid_t space_id);

static size_t H5Z_filter_nbit(unsigned flags, size_t cd_nelmts, const unsigned cd_values[],

                              size_t nbytes, size_t *buf_size, void **buf);

​

static void H5Z_calc_parms_nooptype(void);

static void H5Z_calc_parms_atomic(void);

static herr_t H5Z_calc_parms_array(hid_t type_id);

static herr_t H5Z_calc_parms_compound(hid_t type_id);

​

static herr_t H5Z_set_parms_nooptype(hid_t type_id, unsigned cd_values[]);

static herr_t H5Z_set_parms_atomic(hid_t type_id, unsigned cd_values[]);

static herr_t H5Z_set_parms_array(hid_t type_id, unsigned cd_values[]);