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 COPYING file, which can be found at the root of the source code       *

 * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *

 * If you do not have access to either file, you may request a copy from     *

 * help@hdfgroup.org.                                                        *

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

​

#include "H5Zmodule.h"          /* This source code file is part of the H5Z module */

​

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

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

#include "H5Iprivate.h"     /* IDs                  */

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

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

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

#include "H5Sprivate.h"     /* Dataspaces                   */

#include "H5Tprivate.h"     /* Datatypes                    */

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

​

/* Struct of parameters needed for compressing/decompressing

 * one nbit atomic datatype: integer or floating-point

 */

typedef struct {

   unsigned size;         /* size of datatype */

   unsigned order;      /* datatype endianness order */

   unsigned precision;  /* datatype precision */

   unsigned offset;     /* datatype offset */

} parms_atomic;

​

/* Local function prototypes */

static htri_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(size_t *cd_values_actual_nparms);

static void H5Z_calc_parms_atomic(size_t *cd_values_actual_nparms);

static herr_t H5Z_calc_parms_array(const H5T_t *type, size_t *cd_values_actual_nparms);

static herr_t H5Z_calc_parms_compound(const H5T_t *type, size_t *cd_values_actual_nparms);

​

static herr_t H5Z_set_parms_nooptype(const H5T_t *type, unsigned *cd_values_index,

    unsigned cd_values[]);

static herr_t H5Z_set_parms_atomic(const H5T_t *type, unsigned *cd_values_index,

    unsigned cd_values[], hbool_t *need_not_compress);

static herr_t H5Z_set_parms_array(const H5T_t *type, unsigned *cd_values_index,