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/* $Id: bucket.c,v 1.9 2015/07/06 08:05:44 kristaps Exp $ */
/*
* Copyright (c) 2014, 2015 Kristaps Dzonsons <kristaps@bsd.lv>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "compat.h"
#include <assert.h>
#include <cairo.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include "kplot.h"
#include "extern.h"
struct kdata *
kdata_bucket_alloc(size_t rmin, size_t rmax)
{
struct kdata *d;
size_t i;
if (NULL == (d = calloc(1, sizeof(struct kdata))))
return(NULL);
d->refs = 1;
d->pairsz = rmax - rmin;
d->pairs = calloc(d->pairsz, sizeof(struct kpair));
if (NULL == d->pairs) {
free(d);
return(NULL);
}
for (i = 0; i < d->pairsz; i++)
d->pairs[i].x = rmin + i;
d->type = KDATA_BUCKET;
d->d.bucket.rmin = rmin;
d->d.bucket.rmax = rmax;
return(d);
}
static int
kdata_bucket_checkrange(const struct kdata *d, size_t v)
{
return(KDATA_BUCKET == d->type &&
v >= d->d.bucket.rmin && v < d->d.bucket.rmax);
}
int
kdata_bucket_set(struct kdata *d, size_t v, double x, double y)
{
if ( ! kdata_bucket_checkrange(d, v))
return(0);
return(kdata_set(d, v - d->d.bucket.rmin, x, y));
}
int
kdata_bucket_add(struct kdata *d, size_t v, double val)
{
double x, y;
if ( ! kdata_bucket_checkrange(d, v))
return(0);
x = d->pairs[v - d->d.bucket.rmin].x;
y = d->pairs[v - d->d.bucket.rmin].y + val;
return(kdata_set(d, v - d->d.bucket.rmin, x, y));
}
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