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/**
* Copyright 2005-2007 ECMWF
*
* Licensed under the GNU Lesser General Public License which
* incorporates the terms and conditions of version 3 of the GNU
* General Public License.
* See LICENSE and gpl-3.0.txt for details.
*/
#include "grib_api_internal.h"
/*
This is used by make_class.pl
START_CLASS_DEF
CLASS = accessor
SUPER = grib_accessor_class_long
IMPLEMENTS = unpack_long
IMPLEMENTS = init;
IMPLEMENTS = value_count
MEMBERS = const char* bitmap
MEMBERS = const char* unusedBitsInBitmap
MEMBERS = const char* numberOfDataPoints
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 unpack_long(grib_accessor*, long* val,size_t *len);
static long value_count(grib_accessor*);
static void init(grib_accessor*,const long, grib_arguments* );
static void init_class(grib_accessor_class*);
typedef struct grib_accessor_count_missing {
grib_accessor att;
/* Members defined in gen */
/* Members defined in long */
/* Members defined in count_missing */
const char* bitmap;
const char* unusedBitsInBitmap;
const char* numberOfDataPoints;
} grib_accessor_count_missing;
extern grib_accessor_class* grib_accessor_class_long;
static grib_accessor_class _grib_accessor_class_count_missing = {
&grib_accessor_class_long, /* super */
"count_missing", /* name */
sizeof(grib_accessor_count_missing), /* size */
0, /* inited */
&init_class, /* init_class */
&init, /* init */
0, /* post_init */
0, /* free mem */
0, /* describes himself */
0, /* get length of section */
&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 */
&unpack_long, /* grib_unpack procedures long */
0, /* grib_pack procedures double */
0, /* 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, /* clear */
};
grib_accessor_class* grib_accessor_class_count_missing = &_grib_accessor_class_count_missing;
static void init_class(grib_accessor_class* c)
{
c->dump = (*(c->super))->dump;
c->next_offset = (*(c->super))->next_offset;
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->pack_double = (*(c->super))->pack_double;
c->unpack_double = (*(c->super))->unpack_double;
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->clear = (*(c->super))->clear;
}
/* END_CLASS_IMP */
static const unsigned char bitsoff[]={
8, 7, 7, 6, 7, 6, 6, 5, 7, 6, 6, 5, 6, 5, 5, 4, 7,
6, 6, 5, 6, 5, 5, 4, 6, 5, 5, 4, 5, 4, 4, 3, 7, 6,
6, 5, 6, 5, 5, 4, 6, 5, 5, 4, 5, 4, 4, 3, 6, 5, 5,
4, 5, 4, 4, 3, 5, 4, 4, 3, 4, 3, 3, 2, 7, 6, 6, 5,
6, 5, 5, 4, 6, 5, 5, 4, 5, 4, 4, 3, 6, 5, 5, 4, 5,
4, 4, 3, 5, 4, 4, 3, 4, 3, 3, 2, 6, 5, 5, 4, 5, 4,
4, 3, 5, 4, 4, 3, 4, 3, 3, 2, 5, 4, 4, 3, 4, 3, 3,
2, 4, 3, 3, 2, 3, 2, 2, 1, 7, 6, 6, 5, 6, 5, 5, 4,
6, 5, 5, 4, 5, 4, 4, 3, 6, 5, 5, 4, 5, 4, 4, 3, 5,
4, 4, 3, 4, 3, 3, 2, 6, 5, 5, 4, 5, 4, 4, 3, 5, 4,
4, 3, 4, 3, 3, 2, 5, 4, 4, 3, 4, 3, 3, 2, 4, 3, 3,
2, 3, 2, 2, 1, 6, 5, 5, 4, 5, 4, 4, 3, 5, 4, 4, 3,
4, 3, 3, 2, 5, 4, 4, 3, 4, 3, 3, 2, 4, 3, 3, 2, 3,
2, 2, 1, 5, 4, 4, 3, 4, 3, 3, 2, 4, 3, 3, 2, 3, 2,
2, 1, 4, 3, 3, 2, 3, 2, 2, 1, 3, 2, 2, 1, 2, 1, 1,
0 };
static const unsigned char bitson[]={
0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, 1,
2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 1, 2,
2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3,
4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 1, 2, 2, 3,
2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3,
4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 2, 3, 3, 4, 3, 4,
4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5,
6, 4, 5, 5, 6, 5, 6, 6, 7, 1, 2, 2, 3, 2, 3, 3, 4,
2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3,
4, 4, 5, 4, 5, 5, 6, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4,
4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5,
6, 5, 6, 6, 7, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5,
4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5,
6, 6, 7, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6,
6, 7, 4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7,
8 };
static void init(grib_accessor* a, const long len , grib_arguments* arg )
{
int n=0;
grib_accessor_count_missing* self = (grib_accessor_count_missing*)a;
a->length=0;
a->flags|=GRIB_ACCESSOR_FLAG_READ_ONLY;
self->bitmap = grib_arguments_get_name(a->parent->h,arg,n++);
self->unusedBitsInBitmap = grib_arguments_get_name(a->parent->h,arg,n++);
self->numberOfDataPoints = grib_arguments_get_name(a->parent->h,arg,n++);
}
static int used[] ={ 0,1,3,7,15,31,63,127,255};
static int unpack_long (grib_accessor* a, long* val, size_t *len)
{
grib_accessor_count_missing* self = (grib_accessor_count_missing*)a;
unsigned char* p;
int i;
long size=0;
long offset=0;
long unusedBitsInBitmap=0;
long numberOfDataPoints=0;
grib_handle* h=a->parent->h;
grib_accessor* bitmap=grib_find_accessor(a->parent->h,self->bitmap);
*val=0;
*len=1;
if (!bitmap) return GRIB_SUCCESS;
size=grib_byte_count(bitmap);
offset=grib_byte_offset(bitmap);
if (grib_get_long(h,self->unusedBitsInBitmap,&unusedBitsInBitmap) != GRIB_SUCCESS) {
if (grib_get_long(h,self->numberOfDataPoints,&numberOfDataPoints) != GRIB_SUCCESS) {
grib_context_log(a->parent->h->context,GRIB_LOG_ERROR,"unable to count missing values");
return GRIB_INTERNAL_ERROR;
}
unusedBitsInBitmap=size*8-numberOfDataPoints;
}
p=a->parent->h->buffer->data+offset;
size-=unusedBitsInBitmap/8;
unusedBitsInBitmap= unusedBitsInBitmap % 8;
for (i=0;i<size-1;i++) *val += bitsoff[*(p++)];
*val += bitsoff[(*p) | used[unusedBitsInBitmap]];
return GRIB_SUCCESS;
}
static long value_count(grib_accessor* a)
{
return 1;
}
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