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/*
* Copyright 2005-2016 ECMWF.
*
* This software is licensed under the terms of the Apache Licence Version 2.0
* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
*
* In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
* virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
*/
#include "grib_api_internal.h"
/*
This is used by make_class.pl
START_CLASS_DEF
CLASS = accessor
SUPER = grib_accessor_class_values
IMPLEMENTS = init
IMPLEMENTS = unpack_double
IMPLEMENTS = value_count
IMPLEMENTS = pack_double
MEMBERS=const char* ni
MEMBERS=const char* nj
MEMBERS=const char* reference_value
END_CLASS_DEF
*/
/* START_CLASS_IMP */
/*
Don't edit anything between START_CLASS_IMP and END_CLASS_IMP
Instead edit values between START_CLASS_DEF and END_CLASS_DEF
or edit "accessor.class" and rerun ./make_class.pl
*/
static int pack_double(grib_accessor*, const double* val,size_t *len);
static int unpack_double(grib_accessor*, double* val,size_t *len);
static int value_count(grib_accessor*,long*);
static void init(grib_accessor*,const long, grib_arguments* );
static void init_class(grib_accessor_class*);
typedef struct grib_accessor_data_constant_field {
grib_accessor att;
/* Members defined in gen */
/* Members defined in values */
int carg;
const char* seclen;
const char* offsetdata;
const char* offsetsection;
int dirty;
/* Members defined in data_constant_field */
const char* ni;
const char* nj;
const char* reference_value;
} grib_accessor_data_constant_field;
extern grib_accessor_class* grib_accessor_class_values;
static grib_accessor_class _grib_accessor_class_data_constant_field = {
&grib_accessor_class_values, /* super */
"data_constant_field", /* name */
sizeof(grib_accessor_data_constant_field), /* size */
0, /* inited */
&init_class, /* init_class */
&init, /* init */
0, /* post_init */
0, /* free mem */
0, /* describes himself */
0, /* get length of section */
0, /* get length of string */
&value_count, /* get number of values */
0, /* get number of bytes */
0, /* get offset to bytes */
0, /* get native type */
0, /* get sub_section */
0, /* grib_pack procedures long */
0, /* grib_pack procedures long */
0, /* grib_pack procedures long */
0, /* grib_unpack procedures long */
&pack_double, /* grib_pack procedures double */
&unpack_double, /* grib_unpack procedures double */
0, /* grib_pack procedures string */
0, /* grib_unpack procedures string */
0, /* grib_pack procedures bytes */
0, /* grib_unpack procedures bytes */
0, /* pack_expression */
0, /* notify_change */
0, /* update_size */
0, /* preferred_size */
0, /* resize */
0, /* nearest_smaller_value */
0, /* next accessor */
0, /* compare vs. another accessor */
0, /* unpack only ith value */
0, /* unpack a subarray */
0, /* clear */
};
grib_accessor_class* grib_accessor_class_data_constant_field = &_grib_accessor_class_data_constant_field;
static void init_class(grib_accessor_class* c)
{
c->dump = (*(c->super))->dump;
c->next_offset = (*(c->super))->next_offset;
c->string_length = (*(c->super))->string_length;
c->byte_count = (*(c->super))->byte_count;
c->byte_offset = (*(c->super))->byte_offset;
c->get_native_type = (*(c->super))->get_native_type;
c->sub_section = (*(c->super))->sub_section;
c->pack_missing = (*(c->super))->pack_missing;
c->is_missing = (*(c->super))->is_missing;
c->pack_long = (*(c->super))->pack_long;
c->unpack_long = (*(c->super))->unpack_long;
c->pack_string = (*(c->super))->pack_string;
c->unpack_string = (*(c->super))->unpack_string;
c->pack_bytes = (*(c->super))->pack_bytes;
c->unpack_bytes = (*(c->super))->unpack_bytes;
c->pack_expression = (*(c->super))->pack_expression;
c->notify_change = (*(c->super))->notify_change;
c->update_size = (*(c->super))->update_size;
c->preferred_size = (*(c->super))->preferred_size;
c->resize = (*(c->super))->resize;
c->nearest_smaller_value = (*(c->super))->nearest_smaller_value;
c->next = (*(c->super))->next;
c->compare = (*(c->super))->compare;
c->unpack_double_element = (*(c->super))->unpack_double_element;
c->unpack_double_subarray = (*(c->super))->unpack_double_subarray;
c->clear = (*(c->super))->clear;
}
/* END_CLASS_IMP */
static void init(grib_accessor* a,const long v, grib_arguments* args)
{
grib_accessor_data_constant_field* self = (grib_accessor_data_constant_field*)a;
self->ni = grib_arguments_get_name(a->parent->h,args,self->carg++);
self->nj = grib_arguments_get_name(a->parent->h,args,self->carg++);
self->reference_value = grib_arguments_get_name(a->parent->h,args,self->carg++);
}
static int value_count(grib_accessor* a,long* count){
grib_accessor_data_constant_field* self = (grib_accessor_data_constant_field*)a;
long ni;
long nj;
int err = 0;
if((err = grib_get_long_internal(a->parent->h,self->ni,&ni)) != GRIB_SUCCESS)
return err;
if((err = grib_get_long_internal(a->parent->h,self->nj, &nj)) != GRIB_SUCCESS)
return err;
*count=ni*nj;
return err;
}
static int unpack_double(grib_accessor* a, double* val, size_t *len)
{
grib_accessor_data_constant_field* self = (grib_accessor_data_constant_field*)a;
size_t i = 0;
long n_vals = 0;
int err=0;
double reference_value = 0;
err=grib_value_count(a,&n_vals);
if (err) return err;
if(*len < n_vals){
*len = n_vals;
return GRIB_ARRAY_TOO_SMALL;
}
if((err = grib_get_double_internal(a->parent->h,self->reference_value, &reference_value)) != GRIB_SUCCESS)
return err;
for(i=0;i < n_vals;i++)
val[i] = reference_value;
*len = (long) n_vals;
return err;
}
static int pack_double(grib_accessor* a, const double* val, size_t *len)
{
/* This should keep GRIBEX happy */
unsigned char zero =0;
if(a->offset%2)
grib_buffer_replace(a, &zero, 1,1,1);
else
grib_buffer_replace(a, NULL, 0,1,1);
return GRIB_SUCCESS;
}
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