mirror of
https://github.com/Unidata/netcdf-c.git
synced 2024-11-21 03:13:42 +08:00
1932 lines
62 KiB
C
1932 lines
62 KiB
C
/* Copyright 2003-2018, University Corporation for Atmospheric
|
|
* Research. See COPYRIGHT file for copying and redistribution
|
|
* conditions.*/
|
|
/**
|
|
* @file
|
|
* @internal This file is part of netcdf-4, a netCDF-like interface
|
|
* for HDF5, or a HDF5 backend for netCDF, depending on your point of
|
|
* view. This file handles the NetCDF-4 variable functions.
|
|
*
|
|
* @author Ed Hartnett, Dennis Heimbigner, Ward Fisher
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include "nc4internal.h"
|
|
#include "nc4dispatch.h"
|
|
#ifdef USE_HDF5
|
|
#include "hdf5internal.h"
|
|
#endif
|
|
#include <math.h>
|
|
|
|
/** @internal Default size for unlimited dim chunksize. */
|
|
#define DEFAULT_1D_UNLIM_SIZE (4096)
|
|
|
|
/* Define log_e for 10 and 2. Prefer constants defined in math.h,
|
|
* however, GCC environments can have hard time defining M_LN10/M_LN2
|
|
* despite finding math.h */
|
|
#ifndef M_LN10
|
|
# define M_LN10 2.30258509299404568402 /**< log_e 10 */
|
|
#endif /* M_LN10 */
|
|
#ifndef M_LN2
|
|
# define M_LN2 0.69314718055994530942 /**< log_e 2 */
|
|
#endif /* M_LN2 */
|
|
|
|
/** Used in quantize code. Number of explicit bits in significand for
|
|
* floats. Bits 0-22 of SP significands are explicit. Bit 23 is
|
|
* implicitly 1. Currently redundant with NC_QUANTIZE_MAX_FLOAT_NSB
|
|
* and with limits.h/climit (FLT_MANT_DIG-1) */
|
|
#define BIT_XPL_NBR_SGN_FLT (23)
|
|
|
|
/** Used in quantize code. Number of explicit bits in significand for
|
|
* doubles. Bits 0-51 of DP significands are explicit. Bit 52 is
|
|
* implicitly 1. Currently redundant with NC_QUANTIZE_MAX_DOUBLE_NSB
|
|
* and with limits.h/climit (DBL_MANT_DIG-1) */
|
|
#define BIT_XPL_NBR_SGN_DBL (52)
|
|
|
|
/** Pointer union for floating point and bitmask types. */
|
|
typedef union { /* ptr_unn */
|
|
float *fp;
|
|
double *dp;
|
|
unsigned int *ui32p;
|
|
unsigned long long *ui64p;
|
|
void *vp;
|
|
} ptr_unn;
|
|
|
|
/**
|
|
* @internal This is called by nc_get_var_chunk_cache(). Get chunk
|
|
* cache size for a variable.
|
|
*
|
|
* @param ncid File ID.
|
|
* @param varid Variable ID.
|
|
* @param sizep Gets size in bytes of cache.
|
|
* @param nelemsp Gets number of element slots in cache.
|
|
* @param preemptionp Gets cache swapping setting.
|
|
*
|
|
* @returns ::NC_NOERR No error.
|
|
* @returns ::NC_EBADID Bad ncid.
|
|
* @returns ::NC_ENOTVAR Invalid variable ID.
|
|
* @returns ::NC_ENOTNC4 Not a netCDF-4 file.
|
|
* @author Ed Hartnett
|
|
*/
|
|
int
|
|
NC4_get_var_chunk_cache(int ncid, int varid, size_t *sizep,
|
|
size_t *nelemsp, float *preemptionp)
|
|
{
|
|
NC *nc;
|
|
NC_GRP_INFO_T *grp;
|
|
NC_FILE_INFO_T *h5;
|
|
NC_VAR_INFO_T *var;
|
|
int retval;
|
|
|
|
/* Find info for this file and group, and set pointer to each. */
|
|
if ((retval = nc4_find_nc_grp_h5(ncid, &nc, &grp, &h5)))
|
|
return retval;
|
|
assert(nc && grp && h5);
|
|
|
|
/* Find the var. */
|
|
var = (NC_VAR_INFO_T*)ncindexith(grp->vars,(size_t)varid);
|
|
if(!var)
|
|
return NC_ENOTVAR;
|
|
assert(var && var->hdr.id == varid);
|
|
|
|
/* Give the user what they want. */
|
|
if (sizep)
|
|
*sizep = var->chunkcache.size;
|
|
if (nelemsp)
|
|
*nelemsp = var->chunkcache.nelems;
|
|
if (preemptionp)
|
|
*preemptionp = var->chunkcache.preemption;
|
|
|
|
return NC_NOERR;
|
|
}
|
|
|
|
/**
|
|
* @internal A wrapper for NC4_get_var_chunk_cache(), we need this
|
|
* version for fortran.
|
|
*
|
|
* @param ncid File ID.
|
|
* @param varid Variable ID.
|
|
* @param sizep Gets size in MB of cache.
|
|
* @param nelemsp Gets number of element slots in cache.
|
|
* @param preemptionp Gets cache swapping setting.
|
|
*
|
|
* @returns ::NC_NOERR No error.
|
|
* @returns ::NC_EBADID Bad ncid.
|
|
* @returns ::NC_ENOTVAR Invalid variable ID.
|
|
* @returns ::NC_ENOTNC4 Not a netCDF-4 file.
|
|
* @author Ed Hartnett
|
|
*/
|
|
int
|
|
nc_get_var_chunk_cache_ints(int ncid, int varid, int *sizep,
|
|
int *nelemsp, int *preemptionp)
|
|
{
|
|
size_t real_size, real_nelems;
|
|
float real_preemption;
|
|
int ret;
|
|
|
|
if ((ret = NC4_get_var_chunk_cache(ncid, varid, &real_size,
|
|
&real_nelems, &real_preemption)))
|
|
return ret;
|
|
|
|
if (sizep)
|
|
*sizep = (int)(real_size / MEGABYTE);
|
|
if (nelemsp)
|
|
*nelemsp = (int)real_nelems;
|
|
if(preemptionp)
|
|
*preemptionp = (int)(real_preemption * 100);
|
|
|
|
return NC_NOERR;
|
|
}
|
|
|
|
/**
|
|
* @internal Get all the information about a variable. Pass NULL for
|
|
* whatever you don't care about. This is the internal function called
|
|
* by nc_inq_var(), nc_inq_var_deflate(), nc_inq_var_fletcher32(),
|
|
* nc_inq_var_chunking(), nc_inq_var_chunking_ints(),
|
|
* nc_inq_var_fill(), nc_inq_var_endian(), nc_inq_var_filter(), and
|
|
* nc_inq_var_szip().
|
|
*
|
|
* @param ncid File ID.
|
|
* @param varid Variable ID.
|
|
* @param name Gets name.
|
|
* @param xtypep Gets type.
|
|
* @param ndimsp Gets number of dims.
|
|
* @param dimidsp Gets array of dim IDs.
|
|
* @param nattsp Gets number of attributes.
|
|
* @param shufflep Gets shuffle setting.
|
|
* @param deflatep Gets deflate setting.
|
|
* @param deflate_levelp Gets deflate level.
|
|
* @param fletcher32p Gets fletcher32 setting.
|
|
* @param storagep Gets storage setting.
|
|
* @param chunksizesp Gets chunksizes.
|
|
* @param no_fill Gets fill mode.
|
|
* @param fill_valuep Gets fill value.
|
|
* @param endiannessp Gets one of ::NC_ENDIAN_BIG ::NC_ENDIAN_LITTLE
|
|
* ::NC_ENDIAN_NATIVE
|
|
* @param idp Pointer to memory to store filter id.
|
|
* @param nparamsp Pointer to memory to store filter parameter count.
|
|
* @param params Pointer to vector of unsigned integers into which
|
|
* to store filter parameters.
|
|
*
|
|
* @returns ::NC_NOERR No error.
|
|
* @returns ::NC_EBADID Bad ncid.
|
|
* @returns ::NC_ENOTVAR Bad varid.
|
|
* @returns ::NC_ENOMEM Out of memory.
|
|
* @returns ::NC_EINVAL Invalid input.
|
|
* @author Ed Hartnett, Dennis Heimbigner
|
|
*/
|
|
int
|
|
NC4_inq_var_all(int ncid, int varid, char *name, nc_type *xtypep,
|
|
int *ndimsp, int *dimidsp, int *nattsp,
|
|
int *shufflep, int *deflatep, int *deflate_levelp,
|
|
int *fletcher32p, int *storagep, size_t *chunksizesp,
|
|
int *no_fill, void *fill_valuep, int *endiannessp,
|
|
unsigned int *idp, size_t *nparamsp, unsigned int *params)
|
|
{
|
|
NC_GRP_INFO_T *grp;
|
|
NC_FILE_INFO_T *h5;
|
|
NC_VAR_INFO_T *var;
|
|
int d;
|
|
int retval;
|
|
|
|
LOG((2, "%s: ncid 0x%x varid %d", __func__, ncid, varid));
|
|
|
|
/* Find info for this file and group, and set pointer to each. */
|
|
if ((retval = nc4_find_nc_grp_h5(ncid, NULL, &grp, &h5)))
|
|
return retval;
|
|
assert(grp && h5);
|
|
|
|
/* If the varid is -1, find the global atts and call it a day. */
|
|
if (varid == NC_GLOBAL && nattsp)
|
|
{
|
|
*nattsp = ncindexcount(grp->att);
|
|
return NC_NOERR;
|
|
}
|
|
|
|
/* Find the var. */
|
|
if (!(var = (NC_VAR_INFO_T *)ncindexith(grp->vars, (size_t)varid)))
|
|
return NC_ENOTVAR;
|
|
assert(var && var->hdr.id == varid);
|
|
|
|
/* Copy the data to the user's data buffers. */
|
|
if (name)
|
|
strcpy(name, var->hdr.name);
|
|
if (xtypep)
|
|
*xtypep = var->type_info->hdr.id;
|
|
if (ndimsp)
|
|
*ndimsp = (int)var->ndims;
|
|
if (dimidsp)
|
|
for (d = 0; d < var->ndims; d++)
|
|
dimidsp[d] = var->dimids[d];
|
|
if (nattsp)
|
|
*nattsp = ncindexcount(var->att);
|
|
|
|
/* Did the user want the chunksizes? */
|
|
if (var->storage == NC_CHUNKED && chunksizesp)
|
|
{
|
|
for (d = 0; d < var->ndims; d++)
|
|
{
|
|
chunksizesp[d] = var->chunksizes[d];
|
|
LOG((4, "chunksizesp[%d]=%d", d, chunksizesp[d]));
|
|
}
|
|
}
|
|
|
|
/* Did the user inquire about the storage? */
|
|
if (storagep)
|
|
*storagep = var->storage;
|
|
|
|
/* Filter stuff. */
|
|
if (shufflep) {
|
|
retval = nc_inq_var_filter_info(ncid,varid,H5Z_FILTER_SHUFFLE,0,NULL);
|
|
if(retval && retval != NC_ENOFILTER) return retval;
|
|
*shufflep = (retval == NC_NOERR?1:0);
|
|
}
|
|
if (fletcher32p) {
|
|
retval = nc_inq_var_filter_info(ncid,varid,H5Z_FILTER_FLETCHER32,0,NULL);
|
|
if(retval && retval != NC_ENOFILTER) return retval;
|
|
*fletcher32p = (retval == NC_NOERR?1:0);
|
|
}
|
|
if (deflatep)
|
|
return NC_EFILTER;
|
|
|
|
if (idp) {
|
|
return NC_EFILTER;
|
|
}
|
|
|
|
/* Fill value stuff. */
|
|
if (no_fill)
|
|
*no_fill = (int)var->no_fill;
|
|
|
|
/* Don't do a thing with fill_valuep if no_fill mode is set for
|
|
* this var, or if fill_valuep is NULL. */
|
|
if (!var->no_fill && fill_valuep)
|
|
{
|
|
/* Do we have a fill value for this var? */
|
|
if (var->fill_value)
|
|
{
|
|
int xtype = var->type_info->hdr.id;
|
|
if((retval = NC_copy_data(h5->controller,xtype,var->fill_value,1,fill_valuep))) return retval;
|
|
}
|
|
else
|
|
{
|
|
if ((retval = nc4_get_default_fill_value(var->type_info, fill_valuep)))
|
|
return retval;
|
|
}
|
|
}
|
|
|
|
/* Does the user want the endianness of this variable? */
|
|
if (endiannessp)
|
|
*endiannessp = var->endianness;
|
|
|
|
return NC_NOERR;
|
|
}
|
|
|
|
/**
|
|
* @internal Inquire about chunking settings for a var. This is used
|
|
* by the fortran API.
|
|
*
|
|
* @param ncid File ID.
|
|
* @param varid Variable ID.
|
|
* @param storagep Gets contiguous setting.
|
|
* @param chunksizesp Gets chunksizes.
|
|
*
|
|
* @returns ::NC_NOERR No error.
|
|
* @returns ::NC_EBADID Bad ncid.
|
|
* @returns ::NC_ENOTVAR Invalid variable ID.
|
|
* @returns ::NC_EINVAL Invalid input
|
|
* @returns ::NC_ENOMEM Out of memory.
|
|
* @author Ed Hartnett
|
|
*/
|
|
int
|
|
nc_inq_var_chunking_ints(int ncid, int varid, int *storagep, int *chunksizesp)
|
|
{
|
|
NC_VAR_INFO_T *var;
|
|
size_t *cs = NULL;
|
|
int i, retval;
|
|
|
|
/* Get pointer to the var. */
|
|
if ((retval = nc4_find_grp_h5_var(ncid, varid, NULL, NULL, &var)))
|
|
return retval;
|
|
assert(var);
|
|
|
|
/* Allocate space for the size_t copy of the chunksizes array. */
|
|
if (var->ndims)
|
|
if (!(cs = malloc(var->ndims * sizeof(size_t))))
|
|
return NC_ENOMEM;
|
|
|
|
/* Call the netcdf-4 version directly. */
|
|
retval = NC4_inq_var_all(ncid, varid, NULL, NULL, NULL, NULL, NULL,
|
|
NULL, NULL, NULL, NULL, storagep, cs, NULL,
|
|
NULL, NULL, NULL, NULL, NULL);
|
|
|
|
/* Copy from size_t array. */
|
|
if (!retval && chunksizesp && var->storage == NC_CHUNKED)
|
|
{
|
|
for (i = 0; i < var->ndims; i++)
|
|
{
|
|
chunksizesp[i] = (int)cs[i];
|
|
if (cs[i] > NC_MAX_INT)
|
|
retval = NC_ERANGE;
|
|
}
|
|
}
|
|
|
|
if (var->ndims)
|
|
free(cs);
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* @internal Find the ID of a variable, from the name. This function
|
|
* is called by nc_inq_varid().
|
|
*
|
|
* @param ncid File ID.
|
|
* @param name Name of the variable.
|
|
* @param varidp Gets variable ID.
|
|
|
|
* @returns ::NC_NOERR No error.
|
|
* @returns ::NC_EBADID Bad ncid.
|
|
* @returns ::NC_ENOTVAR Bad variable ID.
|
|
*/
|
|
int
|
|
NC4_inq_varid(int ncid, const char *name, int *varidp)
|
|
{
|
|
NC *nc;
|
|
NC_GRP_INFO_T *grp;
|
|
NC_VAR_INFO_T *var;
|
|
char norm_name[NC_MAX_NAME + 1];
|
|
int retval;
|
|
|
|
if (!name)
|
|
return NC_EINVAL;
|
|
if (!varidp)
|
|
return NC_NOERR;
|
|
|
|
LOG((2, "%s: ncid 0x%x name %s", __func__, ncid, name));
|
|
|
|
/* Find info for this file and group, and set pointer to each. */
|
|
if ((retval = nc4_find_nc_grp_h5(ncid, &nc, &grp, NULL)))
|
|
return retval;
|
|
|
|
/* Normalize name. */
|
|
if ((retval = nc4_normalize_name(name, norm_name)))
|
|
return retval;
|
|
|
|
/* Find var of this name. */
|
|
var = (NC_VAR_INFO_T*)ncindexlookup(grp->vars,norm_name);
|
|
if(var)
|
|
{
|
|
*varidp = var->hdr.id;
|
|
return NC_NOERR;
|
|
}
|
|
return NC_ENOTVAR;
|
|
}
|
|
|
|
/**
|
|
* @internal
|
|
*
|
|
* This function will change the parallel access of a variable from
|
|
* independent to collective.
|
|
*
|
|
* @param ncid File ID.
|
|
* @param varid Variable ID.
|
|
* @param par_access NC_COLLECTIVE or NC_INDEPENDENT.
|
|
*
|
|
* @returns ::NC_NOERR No error.
|
|
* @returns ::NC_EBADID Invalid ncid passed.
|
|
* @returns ::NC_ENOTVAR Invalid varid passed.
|
|
* @returns ::NC_ENOPAR LFile was not opened with nc_open_par/nc_create_par.
|
|
* @returns ::NC_EINVAL Invalid par_access specified.
|
|
* @returns ::NC_NOERR for success
|
|
* @author Ed Hartnett, Dennis Heimbigner
|
|
*/
|
|
int
|
|
NC4_var_par_access(int ncid, int varid, int par_access)
|
|
{
|
|
#ifndef USE_PARALLEL4
|
|
NC_UNUSED(ncid);
|
|
NC_UNUSED(varid);
|
|
NC_UNUSED(par_access);
|
|
return NC_ENOPAR;
|
|
#else
|
|
NC *nc;
|
|
NC_GRP_INFO_T *grp;
|
|
NC_FILE_INFO_T *h5;
|
|
NC_VAR_INFO_T *var;
|
|
int retval;
|
|
|
|
LOG((1, "%s: ncid 0x%x varid %d par_access %d", __func__, ncid,
|
|
varid, par_access));
|
|
|
|
if (par_access != NC_INDEPENDENT && par_access != NC_COLLECTIVE)
|
|
return NC_EINVAL;
|
|
|
|
/* Find info for this file and group, and set pointer to each. */
|
|
if ((retval = nc4_find_nc_grp_h5(ncid, &nc, &grp, &h5)))
|
|
return retval;
|
|
|
|
/* This function only for files opened with nc_open_par or nc_create_par. */
|
|
if (!h5->parallel)
|
|
return NC_ENOPAR;
|
|
|
|
/* Find the var, and set its preference. */
|
|
var = (NC_VAR_INFO_T*)ncindexith(grp->vars,varid);
|
|
if (!var) return NC_ENOTVAR;
|
|
assert(var->hdr.id == varid);
|
|
|
|
/* If zlib, shuffle, or fletcher32 filters are in use, then access
|
|
* must be collective. Fail an attempt to set such a variable to
|
|
* independent access. */
|
|
if (nclistlength((NClist*)var->filters) > 0 &&
|
|
par_access == NC_INDEPENDENT)
|
|
return NC_EINVAL;
|
|
|
|
if (par_access)
|
|
var->parallel_access = NC_COLLECTIVE;
|
|
else
|
|
var->parallel_access = NC_INDEPENDENT;
|
|
return NC_NOERR;
|
|
#endif /* USE_PARALLEL4 */
|
|
}
|
|
|
|
/**
|
|
* @internal Copy data from one buffer to another, performing
|
|
* appropriate data conversion.
|
|
*
|
|
* This function will copy data from one buffer to another, in
|
|
* accordance with the types. Range errors will be noted, and the fill
|
|
* value used (or the default fill value if none is supplied) for
|
|
* values that overflow the type.
|
|
*
|
|
* This function applies quantization to float and double data, if
|
|
* desired. The code to do this is derived from the corresponding
|
|
* filter in the CCR project (e.g.,
|
|
* https://github.com/ccr/ccr/blob/master/hdf5_plugins/BITGROOM/src/H5Zbitgroom.c).
|
|
*
|
|
* @param src Pointer to source of data.
|
|
* @param dest Pointer that gets data.
|
|
* @param src_type Type ID of source data.
|
|
* @param dest_type Type ID of destination data.
|
|
* @param len Number of elements of data to copy.
|
|
* @param range_error Pointer that gets 1 if there was a range error.
|
|
* @param fill_value The fill value.
|
|
* @param strict_nc3 Non-zero if strict model in effect.
|
|
* @param quantize_mode May be ::NC_NOQUANTIZE, ::NC_QUANTIZE_BITGROOM,
|
|
* ::NC_QUANTIZE_GRANULARBR, or ::NC_QUANTIZE_BITROUND.
|
|
* @param nsd Number of significant digits for quantize. Ignored
|
|
* unless quantize_mode is ::NC_QUANTIZE_BITGROOM,
|
|
* ::NC_QUANTIZE_GRANULARBR, or ::NC_QUANTIZE_BITROUND
|
|
*
|
|
* @returns ::NC_NOERR No error.
|
|
* @returns ::NC_EBADTYPE Type not found.
|
|
* @author Ed Hartnett, Dennis Heimbigner
|
|
*/
|
|
int
|
|
nc4_convert_type(const void *src, void *dest, const nc_type src_type,
|
|
const nc_type dest_type, const size_t len, int *range_error,
|
|
const void *fill_value, int strict_nc3, int quantize_mode,
|
|
int nsd)
|
|
{
|
|
/* These vars are used with quantize feature. */
|
|
const double bit_per_dgt = M_LN10 / M_LN2; /* 3.32 [frc] Bits per decimal digit of precision = log2(10) */
|
|
const double dgt_per_bit= M_LN2 / M_LN10; /* 0.301 [frc] Decimal digits per bit of precision = log10(2) */
|
|
double mnt; /* [frc] Mantissa, 0.5 <= mnt < 1.0 */
|
|
double mnt_fabs; /* [frc] fabs(mantissa) */
|
|
double mnt_log10_fabs; /* [frc] log10(fabs(mantissa))) */
|
|
double val; /* [frc] Copy of input value to avoid indirection */
|
|
double mss_val_cmp_dbl; /* Missing value for comparison to double precision values */
|
|
float mss_val_cmp_flt; /* Missing value for comparison to single precision values */
|
|
int bit_xpl_nbr_zro; /* [nbr] Number of explicit bits to zero */
|
|
int dgt_nbr; /* [nbr] Number of digits before decimal point */
|
|
int qnt_pwr; /* [nbr] Power of two in quantization mask: qnt_msk = 2^qnt_pwr */
|
|
int xpn_bs2; /* [nbr] Binary exponent xpn_bs2 in val = sign(val) * 2^xpn_bs2 * mnt, 0.5 < mnt <= 1.0 */
|
|
size_t idx;
|
|
unsigned int *u32_ptr;
|
|
unsigned int msk_f32_u32_zro;
|
|
unsigned int msk_f32_u32_one;
|
|
unsigned int msk_f32_u32_hshv;
|
|
unsigned long long int *u64_ptr;
|
|
unsigned long long int msk_f64_u64_zro;
|
|
unsigned long long int msk_f64_u64_one;
|
|
unsigned long long int msk_f64_u64_hshv;
|
|
unsigned short prc_bnr_xpl_rqr; /* [nbr] Explicitly represented binary digits required to retain */
|
|
ptr_unn op1; /* I/O [frc] Values to quantize */
|
|
|
|
char *cp, *cp1;
|
|
float *fp, *fp1;
|
|
double *dp, *dp1;
|
|
int *ip, *ip1;
|
|
short *sp, *sp1;
|
|
signed char *bp, *bp1;
|
|
unsigned char *ubp, *ubp1;
|
|
unsigned short *usp, *usp1;
|
|
unsigned int *uip, *uip1;
|
|
long long *lip, *lip1;
|
|
unsigned long long *ulip, *ulip1;
|
|
size_t count = 0;
|
|
|
|
*range_error = 0;
|
|
LOG((3, "%s: len %d src_type %d dest_type %d", __func__, len, src_type,
|
|
dest_type));
|
|
|
|
/* If quantize is in use, set up some values. Quantize can only be
|
|
* used when the destination type is NC_FLOAT or NC_DOUBLE. */
|
|
if (quantize_mode != NC_NOQUANTIZE)
|
|
{
|
|
assert(dest_type == NC_FLOAT || dest_type == NC_DOUBLE);
|
|
|
|
/* Parameters shared by all quantization codecs */
|
|
if (dest_type == NC_FLOAT)
|
|
{
|
|
/* Determine the fill value. */
|
|
if (fill_value)
|
|
mss_val_cmp_flt = *(float *)fill_value;
|
|
else
|
|
mss_val_cmp_flt = NC_FILL_FLOAT;
|
|
|
|
}
|
|
else
|
|
{
|
|
|
|
/* Determine the fill value. */
|
|
if (fill_value)
|
|
mss_val_cmp_dbl = *(double *)fill_value;
|
|
else
|
|
mss_val_cmp_dbl = NC_FILL_DOUBLE;
|
|
|
|
}
|
|
|
|
/* Set parameters used by BitGroom and BitRound here, outside value loop.
|
|
Equivalent parameters used by GranularBR are set inside value loop,
|
|
since keep bits and thus masks can change for every value. */
|
|
if (quantize_mode == NC_QUANTIZE_BITGROOM ||
|
|
quantize_mode == NC_QUANTIZE_BITROUND )
|
|
{
|
|
|
|
if (quantize_mode == NC_QUANTIZE_BITGROOM){
|
|
|
|
/* BitGroom interprets nsd as number of significant decimal digits
|
|
* Must convert that to number of significant bits to preserve
|
|
* How many bits to preserve? Being conservative, we round up the
|
|
* exact binary digits of precision. Add one because the first bit
|
|
* is implicit not explicit but corner cases prevent our taking
|
|
* advantage of this. */
|
|
prc_bnr_xpl_rqr = (unsigned short)ceil(nsd * bit_per_dgt) + 1;
|
|
|
|
}else if (quantize_mode == NC_QUANTIZE_BITROUND){
|
|
|
|
/* BitRound interprets nsd as number of significant binary digits (bits) */
|
|
prc_bnr_xpl_rqr = (unsigned short)nsd;
|
|
|
|
}
|
|
|
|
if (dest_type == NC_FLOAT)
|
|
{
|
|
|
|
bit_xpl_nbr_zro = BIT_XPL_NBR_SGN_FLT - prc_bnr_xpl_rqr;
|
|
|
|
/* Create mask */
|
|
msk_f32_u32_zro = 0U; /* Zero all bits */
|
|
msk_f32_u32_zro = ~msk_f32_u32_zro; /* Turn all bits to ones */
|
|
|
|
/* BitShave mask for AND: Left shift zeros into bits to be
|
|
* rounded, leave ones in untouched bits. */
|
|
msk_f32_u32_zro <<= bit_xpl_nbr_zro;
|
|
|
|
/* BitSet mask for OR: Put ones into bits to be set, zeros in
|
|
* untouched bits. */
|
|
msk_f32_u32_one = ~msk_f32_u32_zro;
|
|
|
|
/* BitRound mask for ADD: Set one bit: the MSB of LSBs */
|
|
msk_f32_u32_hshv=msk_f32_u32_one & (msk_f32_u32_zro >> 1);
|
|
|
|
}
|
|
else
|
|
{
|
|
|
|
bit_xpl_nbr_zro = BIT_XPL_NBR_SGN_DBL - prc_bnr_xpl_rqr;
|
|
/* Create mask. */
|
|
msk_f64_u64_zro = 0UL; /* Zero all bits. */
|
|
msk_f64_u64_zro = ~msk_f64_u64_zro; /* Turn all bits to ones. */
|
|
|
|
/* BitShave mask for AND: Left shift zeros into bits to be
|
|
* rounded, leave ones in untouched bits. */
|
|
msk_f64_u64_zro <<= bit_xpl_nbr_zro;
|
|
|
|
/* BitSet mask for OR: Put ones into bits to be set, zeros in
|
|
* untouched bits. */
|
|
msk_f64_u64_one =~ msk_f64_u64_zro;
|
|
|
|
/* BitRound mask for ADD: Set one bit: the MSB of LSBs */
|
|
msk_f64_u64_hshv = msk_f64_u64_one & (msk_f64_u64_zro >> 1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} /* endif quantize */
|
|
|
|
/* OK, this is ugly. If you can think of anything better, I'm open
|
|
to suggestions!
|
|
|
|
Note that we don't use a default fill value for type
|
|
NC_BYTE. This is because Lord Voldemort cast a nofilleramous spell
|
|
at Harry Potter, but it bounced off his scar and hit the netcdf-4
|
|
code.
|
|
*/
|
|
switch (src_type)
|
|
{
|
|
case NC_CHAR:
|
|
switch (dest_type)
|
|
{
|
|
case NC_CHAR:
|
|
for (cp = (char *)src, cp1 = dest; count < len; count++)
|
|
*cp1++ = *cp++;
|
|
break;
|
|
default:
|
|
LOG((0, "%s: Unknown destination type.", __func__));
|
|
}
|
|
break;
|
|
|
|
case NC_BYTE:
|
|
switch (dest_type)
|
|
{
|
|
case NC_BYTE:
|
|
for (bp = (signed char *)src, bp1 = dest; count < len; count++)
|
|
*bp1++ = *bp++;
|
|
break;
|
|
case NC_UBYTE:
|
|
for (bp = (signed char *)src, ubp = dest; count < len; count++)
|
|
{
|
|
if (*bp < 0)
|
|
(*range_error)++;
|
|
*ubp++ = (unsigned char)*bp++;
|
|
}
|
|
break;
|
|
case NC_SHORT:
|
|
for (bp = (signed char *)src, sp = dest; count < len; count++)
|
|
*sp++ = *bp++;
|
|
break;
|
|
case NC_USHORT:
|
|
for (bp = (signed char *)src, usp = dest; count < len; count++)
|
|
{
|
|
if (*bp < 0)
|
|
(*range_error)++;
|
|
*usp++ = (unsigned short)*bp++;
|
|
}
|
|
break;
|
|
case NC_INT:
|
|
for (bp = (signed char *)src, ip = dest; count < len; count++)
|
|
*ip++ = *bp++;
|
|
break;
|
|
case NC_UINT:
|
|
for (bp = (signed char *)src, uip = dest; count < len; count++)
|
|
{
|
|
if (*bp < 0)
|
|
(*range_error)++;
|
|
*uip++ = (unsigned int)*bp++;
|
|
}
|
|
break;
|
|
case NC_INT64:
|
|
for (bp = (signed char *)src, lip = dest; count < len; count++)
|
|
*lip++ = *bp++;
|
|
break;
|
|
case NC_UINT64:
|
|
for (bp = (signed char *)src, ulip = dest; count < len; count++)
|
|
{
|
|
if (*bp < 0)
|
|
(*range_error)++;
|
|
*ulip++ = (unsigned long long)*bp++;
|
|
}
|
|
break;
|
|
case NC_FLOAT:
|
|
for (bp = (signed char *)src, fp = dest; count < len; count++)
|
|
*fp++ = *bp++;
|
|
break;
|
|
case NC_DOUBLE:
|
|
for (bp = (signed char *)src, dp = dest; count < len; count++)
|
|
*dp++ = *bp++;
|
|
break;
|
|
default:
|
|
LOG((0, "%s: unexpected dest type. src_type %d, dest_type %d",
|
|
__func__, src_type, dest_type));
|
|
return NC_EBADTYPE;
|
|
}
|
|
break;
|
|
|
|
case NC_UBYTE:
|
|
switch (dest_type)
|
|
{
|
|
case NC_BYTE:
|
|
for (ubp = (unsigned char *)src, bp = dest; count < len; count++)
|
|
{
|
|
if (!strict_nc3 && *ubp > X_SCHAR_MAX)
|
|
(*range_error)++;
|
|
*bp++ = (signed char)*ubp++;
|
|
}
|
|
break;
|
|
case NC_SHORT:
|
|
for (ubp = (unsigned char *)src, sp = dest; count < len; count++)
|
|
*sp++ = *ubp++;
|
|
break;
|
|
case NC_UBYTE:
|
|
for (ubp = (unsigned char *)src, ubp1 = dest; count < len; count++)
|
|
*ubp1++ = *ubp++;
|
|
break;
|
|
case NC_USHORT:
|
|
for (ubp = (unsigned char *)src, usp = dest; count < len; count++)
|
|
*usp++ = *ubp++;
|
|
break;
|
|
case NC_INT:
|
|
for (ubp = (unsigned char *)src, ip = dest; count < len; count++)
|
|
*ip++ = *ubp++;
|
|
break;
|
|
case NC_UINT:
|
|
for (ubp = (unsigned char *)src, uip = dest; count < len; count++)
|
|
*uip++ = *ubp++;
|
|
break;
|
|
case NC_INT64:
|
|
for (ubp = (unsigned char *)src, lip = dest; count < len; count++)
|
|
*lip++ = *ubp++;
|
|
break;
|
|
case NC_UINT64:
|
|
for (ubp = (unsigned char *)src, ulip = dest; count < len; count++)
|
|
*ulip++ = *ubp++;
|
|
break;
|
|
case NC_FLOAT:
|
|
for (ubp = (unsigned char *)src, fp = dest; count < len; count++)
|
|
*fp++ = *ubp++;
|
|
break;
|
|
case NC_DOUBLE:
|
|
for (ubp = (unsigned char *)src, dp = dest; count < len; count++)
|
|
*dp++ = *ubp++;
|
|
break;
|
|
default:
|
|
LOG((0, "%s: unexpected dest type. src_type %d, dest_type %d",
|
|
__func__, src_type, dest_type));
|
|
return NC_EBADTYPE;
|
|
}
|
|
break;
|
|
|
|
case NC_SHORT:
|
|
switch (dest_type)
|
|
{
|
|
case NC_UBYTE:
|
|
for (sp = (short *)src, ubp = dest; count < len; count++)
|
|
{
|
|
if (*sp > X_UCHAR_MAX || *sp < 0)
|
|
(*range_error)++;
|
|
*ubp++ = (unsigned char)*sp++;
|
|
}
|
|
break;
|
|
case NC_BYTE:
|
|
for (sp = (short *)src, bp = dest; count < len; count++)
|
|
{
|
|
if (*sp > X_SCHAR_MAX || *sp < X_SCHAR_MIN)
|
|
(*range_error)++;
|
|
*bp++ = (signed char)*sp++;
|
|
}
|
|
break;
|
|
case NC_SHORT:
|
|
for (sp = (short *)src, sp1 = dest; count < len; count++)
|
|
*sp1++ = *sp++;
|
|
break;
|
|
case NC_USHORT:
|
|
for (sp = (short *)src, usp = dest; count < len; count++)
|
|
{
|
|
if (*sp < 0)
|
|
(*range_error)++;
|
|
*usp++ = (unsigned short)*sp++;
|
|
}
|
|
break;
|
|
case NC_INT:
|
|
for (sp = (short *)src, ip = dest; count < len; count++)
|
|
*ip++ = *sp++;
|
|
break;
|
|
case NC_UINT:
|
|
for (sp = (short *)src, uip = dest; count < len; count++)
|
|
{
|
|
if (*sp < 0)
|
|
(*range_error)++;
|
|
*uip++ = (unsigned int)*sp++;
|
|
}
|
|
break;
|
|
case NC_INT64:
|
|
for (sp = (short *)src, lip = dest; count < len; count++)
|
|
*lip++ = *sp++;
|
|
break;
|
|
case NC_UINT64:
|
|
for (sp = (short *)src, ulip = dest; count < len; count++)
|
|
{
|
|
if (*sp < 0)
|
|
(*range_error)++;
|
|
*ulip++ = (unsigned long long)*sp++;
|
|
}
|
|
break;
|
|
case NC_FLOAT:
|
|
for (sp = (short *)src, fp = dest; count < len; count++)
|
|
*fp++ = *sp++;
|
|
break;
|
|
case NC_DOUBLE:
|
|
for (sp = (short *)src, dp = dest; count < len; count++)
|
|
*dp++ = *sp++;
|
|
break;
|
|
default:
|
|
LOG((0, "%s: unexpected dest type. src_type %d, dest_type %d",
|
|
__func__, src_type, dest_type));
|
|
return NC_EBADTYPE;
|
|
}
|
|
break;
|
|
|
|
case NC_USHORT:
|
|
switch (dest_type)
|
|
{
|
|
case NC_UBYTE:
|
|
for (usp = (unsigned short *)src, ubp = dest; count < len; count++)
|
|
{
|
|
if (*usp > X_UCHAR_MAX)
|
|
(*range_error)++;
|
|
*ubp++ = (unsigned char)*usp++;
|
|
}
|
|
break;
|
|
case NC_BYTE:
|
|
for (usp = (unsigned short *)src, bp = dest; count < len; count++)
|
|
{
|
|
if (*usp > X_SCHAR_MAX)
|
|
(*range_error)++;
|
|
*bp++ = (signed char)*usp++;
|
|
}
|
|
break;
|
|
case NC_SHORT:
|
|
for (usp = (unsigned short *)src, sp = dest; count < len; count++)
|
|
{
|
|
if (*usp > X_SHORT_MAX)
|
|
(*range_error)++;
|
|
*sp++ = (signed short)*usp++;
|
|
}
|
|
break;
|
|
case NC_USHORT:
|
|
for (usp = (unsigned short *)src, usp1 = dest; count < len; count++)
|
|
*usp1++ = *usp++;
|
|
break;
|
|
case NC_INT:
|
|
for (usp = (unsigned short *)src, ip = dest; count < len; count++)
|
|
*ip++ = *usp++;
|
|
break;
|
|
case NC_UINT:
|
|
for (usp = (unsigned short *)src, uip = dest; count < len; count++)
|
|
*uip++ = *usp++;
|
|
break;
|
|
case NC_INT64:
|
|
for (usp = (unsigned short *)src, lip = dest; count < len; count++)
|
|
*lip++ = *usp++;
|
|
break;
|
|
case NC_UINT64:
|
|
for (usp = (unsigned short *)src, ulip = dest; count < len; count++)
|
|
*ulip++ = *usp++;
|
|
break;
|
|
case NC_FLOAT:
|
|
for (usp = (unsigned short *)src, fp = dest; count < len; count++)
|
|
*fp++ = *usp++;
|
|
break;
|
|
case NC_DOUBLE:
|
|
for (usp = (unsigned short *)src, dp = dest; count < len; count++)
|
|
*dp++ = *usp++;
|
|
break;
|
|
default:
|
|
LOG((0, "%s: unexpected dest type. src_type %d, dest_type %d",
|
|
__func__, src_type, dest_type));
|
|
return NC_EBADTYPE;
|
|
}
|
|
break;
|
|
|
|
case NC_INT:
|
|
switch (dest_type)
|
|
{
|
|
case NC_UBYTE:
|
|
for (ip = (int *)src, ubp = dest; count < len; count++)
|
|
{
|
|
if (*ip > X_UCHAR_MAX || *ip < 0)
|
|
(*range_error)++;
|
|
*ubp++ = (unsigned char)*ip++;
|
|
}
|
|
break;
|
|
case NC_BYTE:
|
|
for (ip = (int *)src, bp = dest; count < len; count++)
|
|
{
|
|
if (*ip > X_SCHAR_MAX || *ip < X_SCHAR_MIN)
|
|
(*range_error)++;
|
|
*bp++ = (signed char)*ip++;
|
|
}
|
|
break;
|
|
case NC_SHORT:
|
|
for (ip = (int *)src, sp = dest; count < len; count++)
|
|
{
|
|
if (*ip > X_SHORT_MAX || *ip < X_SHORT_MIN)
|
|
(*range_error)++;
|
|
*sp++ = (short)*ip++;
|
|
}
|
|
break;
|
|
case NC_USHORT:
|
|
for (ip = (int *)src, usp = dest; count < len; count++)
|
|
{
|
|
if (*ip > X_USHORT_MAX || *ip < 0)
|
|
(*range_error)++;
|
|
*usp++ = (unsigned short)*ip++;
|
|
}
|
|
break;
|
|
case NC_INT: /* src is int */
|
|
for (ip = (int *)src, ip1 = dest; count < len; count++)
|
|
{
|
|
if (*ip > X_INT_MAX || *ip < X_INT_MIN)
|
|
(*range_error)++;
|
|
*ip1++ = *ip++;
|
|
}
|
|
break;
|
|
case NC_UINT:
|
|
for (ip = (int *)src, uip = dest; count < len; count++)
|
|
{
|
|
if (*ip > X_UINT_MAX || *ip < 0)
|
|
(*range_error)++;
|
|
*uip++ = (unsigned int)*ip++;
|
|
}
|
|
break;
|
|
case NC_INT64:
|
|
for (ip = (int *)src, lip = dest; count < len; count++)
|
|
*lip++ = *ip++;
|
|
break;
|
|
case NC_UINT64:
|
|
for (ip = (int *)src, ulip = dest; count < len; count++)
|
|
{
|
|
if (*ip < 0)
|
|
(*range_error)++;
|
|
*ulip++ = (unsigned long long)*ip++;
|
|
}
|
|
break;
|
|
case NC_FLOAT:
|
|
for (ip = (int *)src, fp = dest; count < len; count++)
|
|
*fp++ = (float)*ip++;
|
|
break;
|
|
case NC_DOUBLE:
|
|
for (ip = (int *)src, dp = dest; count < len; count++)
|
|
*dp++ = (double)*ip++;
|
|
break;
|
|
default:
|
|
LOG((0, "%s: unexpected dest type. src_type %d, dest_type %d",
|
|
__func__, src_type, dest_type));
|
|
return NC_EBADTYPE;
|
|
}
|
|
break;
|
|
|
|
case NC_UINT:
|
|
switch (dest_type)
|
|
{
|
|
case NC_UBYTE:
|
|
for (uip = (unsigned int *)src, ubp = dest; count < len; count++)
|
|
{
|
|
if (*uip > X_UCHAR_MAX)
|
|
(*range_error)++;
|
|
*ubp++ = (unsigned char)*uip++;
|
|
}
|
|
break;
|
|
case NC_BYTE:
|
|
for (uip = (unsigned int *)src, bp = dest; count < len; count++)
|
|
{
|
|
if (*uip > X_SCHAR_MAX)
|
|
(*range_error)++;
|
|
*bp++ = (signed char)*uip++;
|
|
}
|
|
break;
|
|
case NC_SHORT:
|
|
for (uip = (unsigned int *)src, sp = dest; count < len; count++)
|
|
{
|
|
if (*uip > X_SHORT_MAX)
|
|
(*range_error)++;
|
|
*sp++ = (signed short)*uip++;
|
|
}
|
|
break;
|
|
case NC_USHORT:
|
|
for (uip = (unsigned int *)src, usp = dest; count < len; count++)
|
|
{
|
|
if (*uip > X_USHORT_MAX)
|
|
(*range_error)++;
|
|
*usp++ = (unsigned short)*uip++;
|
|
}
|
|
break;
|
|
case NC_INT:
|
|
for (uip = (unsigned int *)src, ip = dest; count < len; count++)
|
|
{
|
|
if (*uip > X_INT_MAX)
|
|
(*range_error)++;
|
|
*ip++ = (int)*uip++;
|
|
}
|
|
break;
|
|
case NC_UINT:
|
|
for (uip = (unsigned int *)src, uip1 = dest; count < len; count++)
|
|
{
|
|
if (*uip > X_UINT_MAX)
|
|
(*range_error)++;
|
|
*uip1++ = *uip++;
|
|
}
|
|
break;
|
|
case NC_INT64:
|
|
for (uip = (unsigned int *)src, lip = dest; count < len; count++)
|
|
*lip++ = *uip++;
|
|
break;
|
|
case NC_UINT64:
|
|
for (uip = (unsigned int *)src, ulip = dest; count < len; count++)
|
|
*ulip++ = *uip++;
|
|
break;
|
|
case NC_FLOAT:
|
|
for (uip = (unsigned int *)src, fp = dest; count < len; count++)
|
|
*fp++ = (float)*uip++;
|
|
break;
|
|
case NC_DOUBLE:
|
|
for (uip = (unsigned int *)src, dp = dest; count < len; count++)
|
|
*dp++ = *uip++;
|
|
break;
|
|
default:
|
|
LOG((0, "%s: unexpected dest type. src_type %d, dest_type %d",
|
|
__func__, src_type, dest_type));
|
|
return NC_EBADTYPE;
|
|
}
|
|
break;
|
|
|
|
case NC_INT64:
|
|
switch (dest_type)
|
|
{
|
|
case NC_UBYTE:
|
|
for (lip = (long long *)src, ubp = dest; count < len; count++)
|
|
{
|
|
if (*lip > X_UCHAR_MAX || *lip < 0)
|
|
(*range_error)++;
|
|
*ubp++ = (unsigned char)*lip++;
|
|
}
|
|
break;
|
|
case NC_BYTE:
|
|
for (lip = (long long *)src, bp = dest; count < len; count++)
|
|
{
|
|
if (*lip > X_SCHAR_MAX || *lip < X_SCHAR_MIN)
|
|
(*range_error)++;
|
|
*bp++ = (signed char)*lip++;
|
|
}
|
|
break;
|
|
case NC_SHORT:
|
|
for (lip = (long long *)src, sp = dest; count < len; count++)
|
|
{
|
|
if (*lip > X_SHORT_MAX || *lip < X_SHORT_MIN)
|
|
(*range_error)++;
|
|
*sp++ = (short)*lip++;
|
|
}
|
|
break;
|
|
case NC_USHORT:
|
|
for (lip = (long long *)src, usp = dest; count < len; count++)
|
|
{
|
|
if (*lip > X_USHORT_MAX || *lip < 0)
|
|
(*range_error)++;
|
|
*usp++ = (unsigned short)*lip++;
|
|
}
|
|
break;
|
|
case NC_UINT:
|
|
for (lip = (long long *)src, uip = dest; count < len; count++)
|
|
{
|
|
if (*lip > X_UINT_MAX || *lip < 0)
|
|
(*range_error)++;
|
|
*uip++ = (unsigned int)*lip++;
|
|
}
|
|
break;
|
|
case NC_INT:
|
|
for (lip = (long long *)src, ip = dest; count < len; count++)
|
|
{
|
|
if (*lip > X_INT_MAX || *lip < X_INT_MIN)
|
|
(*range_error)++;
|
|
*ip++ = (int)*lip++;
|
|
}
|
|
break;
|
|
case NC_INT64:
|
|
for (lip = (long long *)src, lip1 = dest; count < len; count++)
|
|
*lip1++ = *lip++;
|
|
break;
|
|
case NC_UINT64:
|
|
for (lip = (long long *)src, ulip = dest; count < len; count++)
|
|
{
|
|
if (*lip < 0)
|
|
(*range_error)++;
|
|
*ulip++ = (unsigned long long)*lip++;
|
|
}
|
|
break;
|
|
case NC_FLOAT:
|
|
for (lip = (long long *)src, fp = dest; count < len; count++)
|
|
*fp++ = (float)*lip++;
|
|
break;
|
|
case NC_DOUBLE:
|
|
for (lip = (long long *)src, dp = dest; count < len; count++)
|
|
*dp++ = (double)*lip++;
|
|
break;
|
|
default:
|
|
LOG((0, "%s: unexpected dest type. src_type %d, dest_type %d",
|
|
__func__, src_type, dest_type));
|
|
return NC_EBADTYPE;
|
|
}
|
|
break;
|
|
|
|
case NC_UINT64:
|
|
switch (dest_type)
|
|
{
|
|
case NC_UBYTE:
|
|
for (ulip = (unsigned long long *)src, ubp = dest; count < len; count++)
|
|
{
|
|
if (*ulip > X_UCHAR_MAX)
|
|
(*range_error)++;
|
|
*ubp++ = (unsigned char)*ulip++;
|
|
}
|
|
break;
|
|
case NC_BYTE:
|
|
for (ulip = (unsigned long long *)src, bp = dest; count < len; count++)
|
|
{
|
|
if (*ulip > X_SCHAR_MAX)
|
|
(*range_error)++;
|
|
*bp++ = (signed char)*ulip++;
|
|
}
|
|
break;
|
|
case NC_SHORT:
|
|
for (ulip = (unsigned long long *)src, sp = dest; count < len; count++)
|
|
{
|
|
if (*ulip > X_SHORT_MAX)
|
|
(*range_error)++;
|
|
*sp++ = (short)*ulip++;
|
|
}
|
|
break;
|
|
case NC_USHORT:
|
|
for (ulip = (unsigned long long *)src, usp = dest; count < len; count++)
|
|
{
|
|
if (*ulip > X_USHORT_MAX)
|
|
(*range_error)++;
|
|
*usp++ = (unsigned short)*ulip++;
|
|
}
|
|
break;
|
|
case NC_UINT:
|
|
for (ulip = (unsigned long long *)src, uip = dest; count < len; count++)
|
|
{
|
|
if (*ulip > X_UINT_MAX)
|
|
(*range_error)++;
|
|
*uip++ = (unsigned int)*ulip++;
|
|
}
|
|
break;
|
|
case NC_INT:
|
|
for (ulip = (unsigned long long *)src, ip = dest; count < len; count++)
|
|
{
|
|
if (*ulip > X_INT_MAX)
|
|
(*range_error)++;
|
|
*ip++ = (int)*ulip++;
|
|
}
|
|
break;
|
|
case NC_INT64:
|
|
for (ulip = (unsigned long long *)src, lip = dest; count < len; count++)
|
|
{
|
|
if (*ulip > X_INT64_MAX)
|
|
(*range_error)++;
|
|
*lip++ = (long long)*ulip++;
|
|
}
|
|
break;
|
|
case NC_UINT64:
|
|
for (ulip = (unsigned long long *)src, ulip1 = dest; count < len; count++)
|
|
*ulip1++ = *ulip++;
|
|
break;
|
|
case NC_FLOAT:
|
|
for (ulip = (unsigned long long *)src, fp = dest; count < len; count++)
|
|
*fp++ = (float)*ulip++;
|
|
break;
|
|
case NC_DOUBLE:
|
|
for (ulip = (unsigned long long *)src, dp = dest; count < len; count++)
|
|
*dp++ = (double)*ulip++;
|
|
break;
|
|
default:
|
|
LOG((0, "%s: unexpected dest type. src_type %d, dest_type %d",
|
|
__func__, src_type, dest_type));
|
|
return NC_EBADTYPE;
|
|
}
|
|
break;
|
|
|
|
case NC_FLOAT:
|
|
switch (dest_type)
|
|
{
|
|
case NC_UBYTE:
|
|
for (fp = (float *)src, ubp = dest; count < len; count++)
|
|
{
|
|
if (*fp > X_UCHAR_MAX || *fp < 0)
|
|
(*range_error)++;
|
|
*ubp++ = (unsigned char)*fp++;
|
|
}
|
|
break;
|
|
case NC_BYTE:
|
|
for (fp = (float *)src, bp = dest; count < len; count++)
|
|
{
|
|
if (*fp > (double)X_SCHAR_MAX || *fp < (double)X_SCHAR_MIN)
|
|
(*range_error)++;
|
|
*bp++ = (signed char)*fp++;
|
|
}
|
|
break;
|
|
case NC_SHORT:
|
|
for (fp = (float *)src, sp = dest; count < len; count++)
|
|
{
|
|
if (*fp > (double)X_SHORT_MAX || *fp < (double)X_SHORT_MIN)
|
|
(*range_error)++;
|
|
*sp++ = (short)*fp++;
|
|
}
|
|
break;
|
|
case NC_USHORT:
|
|
for (fp = (float *)src, usp = dest; count < len; count++)
|
|
{
|
|
if (*fp > X_USHORT_MAX || *fp < 0)
|
|
(*range_error)++;
|
|
*usp++ = (unsigned short)*fp++;
|
|
}
|
|
break;
|
|
case NC_UINT:
|
|
for (fp = (float *)src, uip = dest; count < len; count++)
|
|
{
|
|
if (*fp > (float)X_UINT_MAX || *fp < 0)
|
|
(*range_error)++;
|
|
*uip++ = (unsigned int)*fp++;
|
|
}
|
|
break;
|
|
case NC_INT:
|
|
for (fp = (float *)src, ip = dest; count < len; count++)
|
|
{
|
|
if (*fp > (double)X_INT_MAX || *fp < (double)X_INT_MIN)
|
|
(*range_error)++;
|
|
*ip++ = (int)*fp++;
|
|
}
|
|
break;
|
|
case NC_INT64:
|
|
for (fp = (float *)src, lip = dest; count < len; count++)
|
|
{
|
|
if (*fp > (float)X_INT64_MAX || *fp <X_INT64_MIN)
|
|
(*range_error)++;
|
|
*lip++ = (long long)*fp++;
|
|
}
|
|
break;
|
|
case NC_UINT64:
|
|
for (fp = (float *)src, ulip = dest; count < len; count++)
|
|
{
|
|
if (*fp > (float)X_UINT64_MAX || *fp < 0)
|
|
(*range_error)++;
|
|
*ulip++ = (unsigned long long)*fp++;
|
|
}
|
|
break;
|
|
case NC_FLOAT:
|
|
for (fp = (float *)src, fp1 = dest; count < len; count++)
|
|
*fp1++ = *fp++;
|
|
break;
|
|
case NC_DOUBLE:
|
|
for (fp = (float *)src, dp = dest; count < len; count++)
|
|
*dp++ = *fp++;
|
|
break;
|
|
default:
|
|
LOG((0, "%s: unexpected dest type. src_type %d, dest_type %d",
|
|
__func__, src_type, dest_type));
|
|
return NC_EBADTYPE;
|
|
}
|
|
break;
|
|
|
|
case NC_DOUBLE:
|
|
switch (dest_type)
|
|
{
|
|
case NC_UBYTE:
|
|
for (dp = (double *)src, ubp = dest; count < len; count++)
|
|
{
|
|
if (*dp > X_UCHAR_MAX || *dp < 0)
|
|
(*range_error)++;
|
|
*ubp++ = (unsigned char)*dp++;
|
|
}
|
|
break;
|
|
case NC_BYTE:
|
|
for (dp = (double *)src, bp = dest; count < len; count++)
|
|
{
|
|
if (*dp > X_SCHAR_MAX || *dp < X_SCHAR_MIN)
|
|
(*range_error)++;
|
|
*bp++ = (signed char)*dp++;
|
|
}
|
|
break;
|
|
case NC_SHORT:
|
|
for (dp = (double *)src, sp = dest; count < len; count++)
|
|
{
|
|
if (*dp > X_SHORT_MAX || *dp < X_SHORT_MIN)
|
|
(*range_error)++;
|
|
*sp++ = (short)*dp++;
|
|
}
|
|
break;
|
|
case NC_USHORT:
|
|
for (dp = (double *)src, usp = dest; count < len; count++)
|
|
{
|
|
if (*dp > X_USHORT_MAX || *dp < 0)
|
|
(*range_error)++;
|
|
*usp++ = (unsigned short)*dp++;
|
|
}
|
|
break;
|
|
case NC_UINT:
|
|
for (dp = (double *)src, uip = dest; count < len; count++)
|
|
{
|
|
if (*dp > X_UINT_MAX || *dp < 0)
|
|
(*range_error)++;
|
|
*uip++ = (unsigned int)*dp++;
|
|
}
|
|
break;
|
|
case NC_INT:
|
|
for (dp = (double *)src, ip = dest; count < len; count++)
|
|
{
|
|
if (*dp > X_INT_MAX || *dp < X_INT_MIN)
|
|
(*range_error)++;
|
|
*ip++ = (int)*dp++;
|
|
}
|
|
break;
|
|
case NC_INT64:
|
|
for (dp = (double *)src, lip = dest; count < len; count++)
|
|
{
|
|
if (*dp > (double)X_INT64_MAX || *dp < X_INT64_MIN)
|
|
(*range_error)++;
|
|
*lip++ = (long long)*dp++;
|
|
}
|
|
break;
|
|
case NC_UINT64:
|
|
for (dp = (double *)src, ulip = dest; count < len; count++)
|
|
{
|
|
if (*dp > (double)X_UINT64_MAX || *dp < 0)
|
|
(*range_error)++;
|
|
*ulip++ = (unsigned long long)*dp++;
|
|
}
|
|
break;
|
|
case NC_FLOAT:
|
|
for (dp = (double *)src, fp = dest; count < len; count++)
|
|
{
|
|
if (isgreater(*dp, X_FLOAT_MAX) || isless(*dp, X_FLOAT_MIN))
|
|
(*range_error)++;
|
|
*fp++ = (float)*dp++;
|
|
}
|
|
break;
|
|
case NC_DOUBLE:
|
|
for (dp = (double *)src, dp1 = dest; count < len; count++)
|
|
*dp1++ = *dp++;
|
|
break;
|
|
default:
|
|
LOG((0, "%s: unexpected dest type. src_type %d, dest_type %d",
|
|
__func__, src_type, dest_type));
|
|
return NC_EBADTYPE;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
LOG((0, "%s: unexpected src type. src_type %d, dest_type %d",
|
|
__func__, src_type, dest_type));
|
|
return NC_EBADTYPE;
|
|
}
|
|
|
|
/* If quantize is in use, determine masks, copy the data, do the
|
|
* quantization. */
|
|
if (quantize_mode == NC_QUANTIZE_BITGROOM)
|
|
{
|
|
if (dest_type == NC_FLOAT)
|
|
{
|
|
/* BitGroom: alternately shave and set LSBs */
|
|
op1.fp = (float *)dest;
|
|
u32_ptr = op1.ui32p;
|
|
for (idx = 0L; idx < len; idx += 2L)
|
|
if (op1.fp[idx] != mss_val_cmp_flt)
|
|
u32_ptr[idx] &= msk_f32_u32_zro;
|
|
for (idx = 1L; idx < len; idx += 2L)
|
|
if (op1.fp[idx] != mss_val_cmp_flt && u32_ptr[idx] != 0U) /* Never quantize upwards floating point values of zero */
|
|
u32_ptr[idx] |= msk_f32_u32_one;
|
|
}
|
|
else
|
|
{
|
|
/* BitGroom: alternately shave and set LSBs. */
|
|
op1.dp = (double *)dest;
|
|
u64_ptr = op1.ui64p;
|
|
for (idx = 0L; idx < len; idx += 2L)
|
|
if (op1.dp[idx] != mss_val_cmp_dbl)
|
|
u64_ptr[idx] &= msk_f64_u64_zro;
|
|
for (idx = 1L; idx < len; idx += 2L)
|
|
if (op1.dp[idx] != mss_val_cmp_dbl && u64_ptr[idx] != 0ULL) /* Never quantize upwards floating point values of zero */
|
|
u64_ptr[idx] |= msk_f64_u64_one;
|
|
}
|
|
} /* endif BitGroom */
|
|
|
|
if (quantize_mode == NC_QUANTIZE_BITROUND)
|
|
{
|
|
if (dest_type == NC_FLOAT)
|
|
{
|
|
/* BitRound: Quantize to user-specified NSB with IEEE-rounding */
|
|
op1.fp = (float *)dest;
|
|
u32_ptr = op1.ui32p;
|
|
for (idx = 0L; idx < len; idx++){
|
|
if (op1.fp[idx] != mss_val_cmp_flt){
|
|
u32_ptr[idx] += msk_f32_u32_hshv; /* Add 1 to the MSB of LSBs, carry 1 to mantissa or even exponent */
|
|
u32_ptr[idx] &= msk_f32_u32_zro; /* Shave it */
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* BitRound: Quantize to user-specified NSB with IEEE-rounding */
|
|
op1.dp = (double *)dest;
|
|
u64_ptr = op1.ui64p;
|
|
for (idx = 0L; idx < len; idx++){
|
|
if (op1.dp[idx] != mss_val_cmp_dbl){
|
|
u64_ptr[idx] += msk_f64_u64_hshv; /* Add 1 to the MSB of LSBs, carry 1 to mantissa or even exponent */
|
|
u64_ptr[idx] &= msk_f64_u64_zro; /* Shave it */
|
|
}
|
|
}
|
|
}
|
|
} /* endif BitRound */
|
|
|
|
if (quantize_mode == NC_QUANTIZE_GRANULARBR)
|
|
{
|
|
if (dest_type == NC_FLOAT)
|
|
{
|
|
/* Granular BitRound */
|
|
op1.fp = (float *)dest;
|
|
u32_ptr = op1.ui32p;
|
|
for (idx = 0L; idx < len; idx++)
|
|
{
|
|
|
|
if((val = op1.fp[idx]) != mss_val_cmp_flt && u32_ptr[idx] != 0U)
|
|
{
|
|
mnt = frexp(val, &xpn_bs2); /* DGG19 p. 4102 (8) */
|
|
mnt_fabs = fabs(mnt);
|
|
mnt_log10_fabs = log10(mnt_fabs);
|
|
/* 20211003 Continuous determination of dgt_nbr improves CR by ~10% */
|
|
dgt_nbr = (int)floor(xpn_bs2 * dgt_per_bit + mnt_log10_fabs) + 1; /* DGG19 p. 4102 (8.67) */
|
|
qnt_pwr = (int)floor(bit_per_dgt * (dgt_nbr - nsd)); /* DGG19 p. 4101 (7) */
|
|
prc_bnr_xpl_rqr = mnt_fabs == 0.0 ? 0 : (unsigned short)abs((int)floor(xpn_bs2 - bit_per_dgt*mnt_log10_fabs) - qnt_pwr); /* Protect against mnt = -0.0 */
|
|
prc_bnr_xpl_rqr--; /* 20211003 Reduce formula result by 1 bit: Passes all tests, improves CR by ~10% */
|
|
|
|
bit_xpl_nbr_zro = BIT_XPL_NBR_SGN_FLT - prc_bnr_xpl_rqr;
|
|
msk_f32_u32_zro = 0U; /* Zero all bits */
|
|
msk_f32_u32_zro = ~msk_f32_u32_zro; /* Turn all bits to ones */
|
|
/* Bit Shave mask for AND: Left shift zeros into bits to be rounded, leave ones in untouched bits */
|
|
msk_f32_u32_zro <<= bit_xpl_nbr_zro;
|
|
/* Bit Set mask for OR: Put ones into bits to be set, zeros in untouched bits */
|
|
msk_f32_u32_one = ~msk_f32_u32_zro;
|
|
msk_f32_u32_hshv = msk_f32_u32_one & (msk_f32_u32_zro >> 1); /* Set one bit: the MSB of LSBs */
|
|
u32_ptr[idx] += msk_f32_u32_hshv; /* Add 1 to the MSB of LSBs, carry 1 to mantissa or even exponent */
|
|
u32_ptr[idx] &= msk_f32_u32_zro; /* Shave it */
|
|
|
|
} /* !mss_val_cmp_flt */
|
|
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Granular BitRound */
|
|
op1.dp = (double *)dest;
|
|
u64_ptr = op1.ui64p;
|
|
for (idx = 0L; idx < len; idx++)
|
|
{
|
|
|
|
if((val = op1.dp[idx]) != mss_val_cmp_dbl && u64_ptr[idx] != 0ULL)
|
|
{
|
|
mnt = frexp(val, &xpn_bs2); /* DGG19 p. 4102 (8) */
|
|
mnt_fabs = fabs(mnt);
|
|
mnt_log10_fabs = log10(mnt_fabs);
|
|
/* 20211003 Continuous determination of dgt_nbr improves CR by ~10% */
|
|
dgt_nbr = (int)floor(xpn_bs2 * dgt_per_bit + mnt_log10_fabs) + 1; /* DGG19 p. 4102 (8.67) */
|
|
qnt_pwr = (int)floor(bit_per_dgt * (dgt_nbr - nsd)); /* DGG19 p. 4101 (7) */
|
|
prc_bnr_xpl_rqr = mnt_fabs == 0.0 ? 0 : (unsigned short)abs((int)floor(xpn_bs2 - bit_per_dgt*mnt_log10_fabs) - qnt_pwr); /* Protect against mnt = -0.0 */
|
|
prc_bnr_xpl_rqr--; /* 20211003 Reduce formula result by 1 bit: Passes all tests, improves CR by ~10% */
|
|
|
|
bit_xpl_nbr_zro = BIT_XPL_NBR_SGN_DBL - prc_bnr_xpl_rqr;
|
|
msk_f64_u64_zro = 0ULL; /* Zero all bits */
|
|
msk_f64_u64_zro = ~msk_f64_u64_zro; /* Turn all bits to ones */
|
|
/* Bit Shave mask for AND: Left shift zeros into bits to be rounded, leave ones in untouched bits */
|
|
msk_f64_u64_zro <<= bit_xpl_nbr_zro;
|
|
/* Bit Set mask for OR: Put ones into bits to be set, zeros in untouched bits */
|
|
msk_f64_u64_one = ~msk_f64_u64_zro;
|
|
msk_f64_u64_hshv = msk_f64_u64_one & (msk_f64_u64_zro >> 1); /* Set one bit: the MSB of LSBs */
|
|
u64_ptr[idx] += msk_f64_u64_hshv; /* Add 1 to the MSB of LSBs, carry 1 to mantissa or even exponent */
|
|
u64_ptr[idx] &= msk_f64_u64_zro; /* Shave it */
|
|
|
|
} /* !mss_val_cmp_dbl */
|
|
|
|
}
|
|
}
|
|
} /* endif GranularBR */
|
|
|
|
return NC_NOERR;
|
|
}
|
|
|
|
/**
|
|
* @internal What fill value should be used for a variable?
|
|
*
|
|
* @param h5 Pointer to HDF5 file info struct.
|
|
* @param var Pointer to variable info struct.
|
|
* @param fillp Pointer that gets pointer to fill value.
|
|
*
|
|
* @returns NC_NOERR No error.
|
|
* @returns NC_ENOMEM Out of memory.
|
|
* @author Ed Hartnett
|
|
*/
|
|
int
|
|
nc4_get_fill_value(NC_FILE_INFO_T *h5, NC_VAR_INFO_T *var, void **fillp)
|
|
{
|
|
size_t size;
|
|
int retval;
|
|
|
|
/* Find out how much space we need for this type's fill value. */
|
|
if (var->type_info->nc_type_class == NC_VLEN)
|
|
size = sizeof(nc_vlen_t);
|
|
else if (var->type_info->nc_type_class == NC_STRING)
|
|
size = sizeof(char *);
|
|
else
|
|
{
|
|
if ((retval = nc4_get_typelen_mem(h5, var->type_info->hdr.id, &size)))
|
|
return retval;
|
|
}
|
|
assert(size);
|
|
|
|
/* Allocate the space. */
|
|
if (!((*fillp) = calloc(1, size)))
|
|
return NC_ENOMEM;
|
|
|
|
/* If the user has set a fill_value for this var, use, otherwise
|
|
* find the default fill value. */
|
|
if (var->fill_value)
|
|
{
|
|
LOG((4, "Found a fill value for var %s", var->hdr.name));
|
|
if (var->type_info->nc_type_class == NC_VLEN)
|
|
{
|
|
nc_vlen_t *in_vlen = (nc_vlen_t *)(var->fill_value), *fv_vlen = (nc_vlen_t *)(*fillp);
|
|
size_t basetypesize = 0;
|
|
|
|
if((retval=nc4_get_typelen_mem(h5, var->type_info->u.v.base_nc_typeid, &basetypesize)))
|
|
return retval;
|
|
|
|
fv_vlen->len = in_vlen->len;
|
|
if (!(fv_vlen->p = malloc(basetypesize * in_vlen->len)))
|
|
{
|
|
free(*fillp);
|
|
*fillp = NULL;
|
|
return NC_ENOMEM;
|
|
}
|
|
memcpy(fv_vlen->p, in_vlen->p, in_vlen->len * basetypesize);
|
|
}
|
|
else if (var->type_info->nc_type_class == NC_STRING)
|
|
{
|
|
if (*(char **)var->fill_value)
|
|
if (!(**(char ***)fillp = strdup(*(char **)var->fill_value)))
|
|
{
|
|
free(*fillp);
|
|
*fillp = NULL;
|
|
return NC_ENOMEM;
|
|
}
|
|
}
|
|
else
|
|
memcpy((*fillp), var->fill_value, size);
|
|
}
|
|
else
|
|
{
|
|
if (nc4_get_default_fill_value(var->type_info, *fillp))
|
|
{
|
|
/* Note: release memory, but don't return error on failure */
|
|
free(*fillp);
|
|
*fillp = NULL;
|
|
}
|
|
}
|
|
|
|
return NC_NOERR;
|
|
}
|
|
|
|
/**
|
|
* @internal Get the length, in bytes, of one element of a type in
|
|
* memory.
|
|
*
|
|
* @param h5 Pointer to HDF5 file info struct.
|
|
* @param xtype NetCDF type ID.
|
|
* @param len Pointer that gets length in bytes.
|
|
*
|
|
* @returns NC_NOERR No error.
|
|
* @returns NC_EBADTYPE Type not found.
|
|
* @author Ed Hartnett
|
|
*/
|
|
int
|
|
nc4_get_typelen_mem(NC_FILE_INFO_T *h5, nc_type xtype, size_t *len)
|
|
{
|
|
NC_TYPE_INFO_T *type;
|
|
int retval;
|
|
|
|
LOG((4, "%s xtype: %d", __func__, xtype));
|
|
assert(len);
|
|
|
|
/* If this is an atomic type, the answer is easy. */
|
|
switch (xtype)
|
|
{
|
|
case NC_BYTE:
|
|
case NC_CHAR:
|
|
case NC_UBYTE:
|
|
*len = sizeof(char);
|
|
return NC_NOERR;
|
|
case NC_SHORT:
|
|
case NC_USHORT:
|
|
*len = sizeof(short);
|
|
return NC_NOERR;
|
|
case NC_INT:
|
|
case NC_UINT:
|
|
*len = sizeof(int);
|
|
return NC_NOERR;
|
|
case NC_FLOAT:
|
|
*len = sizeof(float);
|
|
return NC_NOERR;
|
|
case NC_DOUBLE:
|
|
*len = sizeof(double);
|
|
return NC_NOERR;
|
|
case NC_INT64:
|
|
case NC_UINT64:
|
|
*len = sizeof(long long);
|
|
return NC_NOERR;
|
|
case NC_STRING:
|
|
*len = sizeof(char *);
|
|
return NC_NOERR;
|
|
}
|
|
|
|
/* See if var is compound type. */
|
|
if ((retval = nc4_find_type(h5, xtype, &type)))
|
|
return retval;
|
|
|
|
if (!type)
|
|
return NC_EBADTYPE;
|
|
|
|
*len = type->size;
|
|
|
|
LOG((5, "type->size: %d", type->size));
|
|
|
|
return NC_NOERR;
|
|
}
|
|
|
|
|
|
/**
|
|
* @internal Check a set of chunksizes to see if they specify a chunk
|
|
* that is too big.
|
|
*
|
|
* @param grp Pointer to the group info.
|
|
* @param var Pointer to the var info.
|
|
* @param chunksizes Array of chunksizes to check.
|
|
*
|
|
* @returns ::NC_NOERR No error.
|
|
* @returns ::NC_EBADID Bad ncid.
|
|
* @returns ::NC_ENOTVAR Invalid variable ID.
|
|
* @returns ::NC_EBADCHUNK Bad chunksize.
|
|
*/
|
|
int
|
|
nc4_check_chunksizes(NC_GRP_INFO_T *grp, NC_VAR_INFO_T *var, const size_t *chunksizes)
|
|
{
|
|
double dprod;
|
|
size_t type_len;
|
|
int d;
|
|
int retval;
|
|
|
|
if ((retval = nc4_get_typelen_mem(grp->nc4_info, var->type_info->hdr.id, &type_len)))
|
|
return retval;
|
|
if (var->type_info->nc_type_class == NC_VLEN)
|
|
dprod = (double)sizeof(nc_vlen_t);
|
|
else
|
|
dprod = (double)type_len;
|
|
for (d = 0; d < var->ndims; d++)
|
|
dprod *= (double)chunksizes[d];
|
|
|
|
if (dprod > (double) NC_MAX_UINT)
|
|
return NC_EBADCHUNK;
|
|
|
|
return NC_NOERR;
|
|
}
|
|
|
|
/**
|
|
* @internal Determine some default chunksizes for a variable.
|
|
*
|
|
* @param grp Pointer to the group info.
|
|
* @param var Pointer to the var info.
|
|
*
|
|
* @returns ::NC_NOERR for success
|
|
* @returns ::NC_EBADID Bad ncid.
|
|
* @returns ::NC_ENOTVAR Invalid variable ID.
|
|
* @author Ed Hartnett, Dennis Heimbigner
|
|
*/
|
|
int
|
|
nc4_find_default_chunksizes2(NC_GRP_INFO_T *grp, NC_VAR_INFO_T *var)
|
|
{
|
|
int d;
|
|
size_t type_size;
|
|
float num_values = 1, num_unlim = 0;
|
|
int retval;
|
|
size_t suggested_size;
|
|
#ifdef LOGGING
|
|
double total_chunk_size;
|
|
#endif
|
|
|
|
if (var->type_info->nc_type_class == NC_STRING)
|
|
type_size = sizeof(char *);
|
|
else
|
|
type_size = var->type_info->size;
|
|
|
|
#ifdef LOGGING
|
|
/* Later this will become the total number of bytes in the default
|
|
* chunk. */
|
|
total_chunk_size = (double) type_size;
|
|
#endif
|
|
|
|
if(var->chunksizes == NULL) {
|
|
if((var->chunksizes = calloc(1,sizeof(size_t)*var->ndims)) == NULL)
|
|
return NC_ENOMEM;
|
|
}
|
|
|
|
/* How many values in the variable (or one record, if there are
|
|
* unlimited dimensions). */
|
|
for (d = 0; d < var->ndims; d++)
|
|
{
|
|
assert(var->dim[d]);
|
|
if (! var->dim[d]->unlimited)
|
|
num_values *= (float)var->dim[d]->len;
|
|
else {
|
|
num_unlim++;
|
|
var->chunksizes[d] = 1; /* overwritten below, if all dims are unlimited */
|
|
}
|
|
}
|
|
/* Special case to avoid 1D vars with unlim dim taking huge amount
|
|
of space (DEFAULT_CHUNK_SIZE bytes). Instead we limit to about
|
|
4KB */
|
|
if (var->ndims == 1 && num_unlim == 1) {
|
|
if (DEFAULT_CHUNK_SIZE / type_size <= 0)
|
|
suggested_size = 1;
|
|
else if (DEFAULT_CHUNK_SIZE / type_size > DEFAULT_1D_UNLIM_SIZE)
|
|
suggested_size = DEFAULT_1D_UNLIM_SIZE;
|
|
else
|
|
suggested_size = DEFAULT_CHUNK_SIZE / type_size;
|
|
var->chunksizes[0] = suggested_size / type_size;
|
|
LOG((4, "%s: name %s dim %d DEFAULT_CHUNK_SIZE %d num_values %f type_size %d "
|
|
"chunksize %ld", __func__, var->hdr.name, d, DEFAULT_CHUNK_SIZE, num_values, type_size, var->chunksizes[0]));
|
|
}
|
|
if (var->ndims > 1 && (float)var->ndims == num_unlim) { /* all dims unlimited */
|
|
suggested_size = (size_t)pow((double)DEFAULT_CHUNK_SIZE/(double)type_size, 1.0/(double)(var->ndims));
|
|
for (d = 0; d < var->ndims; d++)
|
|
{
|
|
var->chunksizes[d] = suggested_size ? suggested_size : 1;
|
|
LOG((4, "%s: name %s dim %d DEFAULT_CHUNK_SIZE %d num_values %f type_size %d "
|
|
"chunksize %ld", __func__, var->hdr.name, d, DEFAULT_CHUNK_SIZE, num_values, type_size, var->chunksizes[d]));
|
|
}
|
|
}
|
|
|
|
/* Pick a chunk length for each dimension, if one has not already
|
|
* been picked above. */
|
|
for (d = 0; d < var->ndims; d++)
|
|
if (!var->chunksizes[d])
|
|
{
|
|
suggested_size = (size_t)(pow((double)DEFAULT_CHUNK_SIZE/(num_values * (double)type_size),
|
|
1.0/(double)((double)var->ndims - num_unlim)) * (double)var->dim[d]->len - .5);
|
|
if (suggested_size > var->dim[d]->len)
|
|
suggested_size = var->dim[d]->len;
|
|
var->chunksizes[d] = suggested_size ? suggested_size : 1;
|
|
LOG((4, "%s: name %s dim %d DEFAULT_CHUNK_SIZE %d num_values %f type_size %d "
|
|
"chunksize %ld", __func__, var->hdr.name, d, DEFAULT_CHUNK_SIZE, num_values, type_size, var->chunksizes[d]));
|
|
}
|
|
|
|
#ifdef LOGGING
|
|
/* Find total chunk size. */
|
|
for (d = 0; d < var->ndims; d++)
|
|
total_chunk_size *= (double) var->chunksizes[d];
|
|
LOG((4, "total_chunk_size %f", total_chunk_size));
|
|
#endif
|
|
|
|
/* But did this result in a chunk that is too big? */
|
|
retval = nc4_check_chunksizes(grp, var, var->chunksizes);
|
|
if (retval)
|
|
{
|
|
/* Other error? */
|
|
if (retval != NC_EBADCHUNK)
|
|
return retval;
|
|
|
|
/* Chunk is too big! Reduce each dimension by half and try again. */
|
|
for ( ; retval == NC_EBADCHUNK; retval = nc4_check_chunksizes(grp, var, var->chunksizes))
|
|
for (d = 0; d < var->ndims; d++)
|
|
var->chunksizes[d] = var->chunksizes[d]/2 ? var->chunksizes[d]/2 : 1;
|
|
}
|
|
|
|
/* Do we have any big data overhangs? They can be dangerous to
|
|
* babies, the elderly, or confused campers who have had too much
|
|
* beer. */
|
|
for (d = 0; d < var->ndims; d++)
|
|
{
|
|
size_t num_chunks;
|
|
size_t overhang;
|
|
assert(var->chunksizes[d] > 0);
|
|
num_chunks = (var->dim[d]->len + var->chunksizes[d] - 1) / var->chunksizes[d];
|
|
if(num_chunks > 0) {
|
|
overhang = (num_chunks * var->chunksizes[d]) - var->dim[d]->len;
|
|
var->chunksizes[d] -= overhang / num_chunks;
|
|
}
|
|
}
|
|
|
|
|
|
return NC_NOERR;
|
|
}
|
|
|
|
/**
|
|
* @internal Get the default fill value for an atomic type. Memory for
|
|
* fill_value must already be allocated, or you are DOOMED!
|
|
*
|
|
* @param tinfo type object
|
|
* @param fill_value Pointer that gets the default fill value.
|
|
*
|
|
* @returns NC_NOERR No error.
|
|
* @returns NC_EINVAL Can't find atomic type.
|
|
* @author Ed Hartnett
|
|
*/
|
|
int
|
|
nc4_get_default_fill_value(NC_TYPE_INFO_T* tinfo, void *fill_value)
|
|
{
|
|
if(tinfo->hdr.id > NC_NAT && tinfo->hdr.id <= NC_MAX_ATOMIC_TYPE)
|
|
return nc4_get_default_atomic_fill_value(tinfo->hdr.id,fill_value);
|
|
#ifdef USE_NETCDF4
|
|
switch(tinfo->nc_type_class) {
|
|
case NC_ENUM:
|
|
return nc4_get_default_atomic_fill_value(tinfo->u.e.base_nc_typeid,fill_value);
|
|
case NC_OPAQUE:
|
|
case NC_VLEN:
|
|
case NC_COMPOUND:
|
|
if(fill_value)
|
|
memset(fill_value,0,tinfo->size);
|
|
break;
|
|
default: return NC_EBADTYPE;
|
|
}
|
|
#endif
|
|
return NC_NOERR;
|
|
}
|
|
|
|
/**
|
|
* @internal Get the default fill value for an atomic type. Memory for
|
|
* fill_value must already be allocated, or you are DOOMED!
|
|
*
|
|
* @param xtype type id
|
|
* @param fill_value Pointer that gets the default fill value.
|
|
*
|
|
* @returns NC_NOERR No error.
|
|
* @returns NC_EINVAL Can't find atomic type.
|
|
* @author Ed Hartnett
|
|
*/
|
|
int
|
|
nc4_get_default_atomic_fill_value(nc_type xtype, void *fill_value)
|
|
{
|
|
switch (xtype)
|
|
{
|
|
case NC_CHAR:
|
|
*(char *)fill_value = NC_FILL_CHAR;
|
|
break;
|
|
|
|
case NC_STRING:
|
|
*(char **)fill_value = strdup(NC_FILL_STRING);
|
|
break;
|
|
|
|
case NC_BYTE:
|
|
*(signed char *)fill_value = NC_FILL_BYTE;
|
|
break;
|
|
|
|
case NC_SHORT:
|
|
*(short *)fill_value = NC_FILL_SHORT;
|
|
break;
|
|
|
|
case NC_INT:
|
|
*(int *)fill_value = NC_FILL_INT;
|
|
break;
|
|
|
|
case NC_UBYTE:
|
|
*(unsigned char *)fill_value = NC_FILL_UBYTE;
|
|
break;
|
|
|
|
case NC_USHORT:
|
|
*(unsigned short *)fill_value = NC_FILL_USHORT;
|
|
break;
|
|
|
|
case NC_UINT:
|
|
*(unsigned int *)fill_value = NC_FILL_UINT;
|
|
break;
|
|
|
|
case NC_INT64:
|
|
*(long long *)fill_value = NC_FILL_INT64;
|
|
break;
|
|
|
|
case NC_UINT64:
|
|
*(unsigned long long *)fill_value = NC_FILL_UINT64;
|
|
break;
|
|
|
|
case NC_FLOAT:
|
|
*(float *)fill_value = NC_FILL_FLOAT;
|
|
break;
|
|
|
|
case NC_DOUBLE:
|
|
*(double *)fill_value = NC_FILL_DOUBLE;
|
|
break;
|
|
|
|
default:
|
|
return NC_EINVAL;
|
|
}
|
|
return NC_NOERR;
|
|
}
|
|
|