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Imported Upstream version 0.13.2+dsfg1

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Sebastian Ramacher 2016-02-24 00:16:51 +01:00
commit fb3990e9e5
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libobs/graphics/vec2.c Normal file
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/******************************************************************************
Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
#include <math.h>
#include "math-extra.h"
#include "math-defs.h"
#include "vec2.h"
void vec2_abs(struct vec2 *dst, const struct vec2 *v)
{
vec2_set(dst, fabsf(v->x), fabsf(v->y));
}
void vec2_floor(struct vec2 *dst, const struct vec2 *v)
{
vec2_set(dst, floorf(v->x), floorf(v->y));
}
void vec2_ceil(struct vec2 *dst, const struct vec2 *v)
{
vec2_set(dst, ceilf(v->x), ceilf(v->y));
}
int vec2_close(const struct vec2 *v1, const struct vec2 *v2, float epsilon)
{
return close_float(v1->x, v2->x, epsilon) &&
close_float(v1->y, v2->y, epsilon);
}
void vec2_norm(struct vec2 *dst, const struct vec2 *v)
{
float len = vec2_len(v);
if (len > 0.0f) {
len = 1.0f / len;
vec2_mulf(dst, v, len);
}
}