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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/matrix4.h 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/>.
******************************************************************************/
#pragma once
#include "vec3.h"
#include "vec4.h"
#include "axisang.h"
/* 4x4 Matrix */
#ifdef __cplusplus
extern "C" {
#endif
struct matrix3;
struct matrix4 {
struct vec4 x, y, z, t;
};
static inline void matrix4_copy(struct matrix4 *dst, const struct matrix4 *m)
{
dst->x.m = m->x.m;
dst->y.m = m->y.m;
dst->z.m = m->z.m;
dst->t.m = m->t.m;
}
static inline void matrix4_identity(struct matrix4 *dst)
{
vec4_zero(&dst->x);
vec4_zero(&dst->y);
vec4_zero(&dst->z);
vec4_zero(&dst->t);
dst->x.x = 1.0f;
dst->y.y = 1.0f;
dst->z.z = 1.0f;
dst->t.w = 1.0f;
}
EXPORT void matrix4_from_matrix3(struct matrix4 *dst, const struct matrix3 *m);
EXPORT void matrix4_from_quat(struct matrix4 *dst, const struct quat *q);
EXPORT void matrix4_from_axisang(struct matrix4 *dst,
const struct axisang *aa);
EXPORT void matrix4_mul(struct matrix4 *dst, const struct matrix4 *m1,
const struct matrix4 *m2);
EXPORT float matrix4_determinant(const struct matrix4 *m);
EXPORT void matrix4_translate3v(struct matrix4 *dst, const struct matrix4 *m,
const struct vec3 *v);
EXPORT void matrix4_translate4v(struct matrix4 *dst, const struct matrix4 *m,
const struct vec4 *v);
EXPORT void matrix4_rotate(struct matrix4 *dst, const struct matrix4 *m,
const struct quat *q);
EXPORT void matrix4_rotate_aa(struct matrix4 *dst, const struct matrix4 *m,
const struct axisang *aa);
EXPORT void matrix4_scale(struct matrix4 *dst, const struct matrix4 *m,
const struct vec3 *v);
EXPORT bool matrix4_inv(struct matrix4 *dst, const struct matrix4 *m);
EXPORT void matrix4_transpose(struct matrix4 *dst, const struct matrix4 *m);
EXPORT void matrix4_translate3v_i(struct matrix4 *dst, const struct vec3 *v,
const struct matrix4 *m);
EXPORT void matrix4_translate4v_i(struct matrix4 *dst, const struct vec4 *v,
const struct matrix4 *m);
EXPORT void matrix4_rotate_i(struct matrix4 *dst, const struct quat *q,
const struct matrix4 *m);
EXPORT void matrix4_rotate_aa_i(struct matrix4 *dst, const struct axisang *aa,
const struct matrix4 *m);
EXPORT void matrix4_scale_i(struct matrix4 *dst, const struct vec3 *v,
const struct matrix4 *m);
static inline void matrix4_translate3f(struct matrix4 *dst,
const struct matrix4 *m, float x, float y, float z)
{
struct vec3 v;
vec3_set(&v, x, y, z);
matrix4_translate3v(dst, m, &v);
}
static inline void matrix4_rotate_aa4f(struct matrix4 *dst,
const struct matrix4 *m, float x, float y, float z, float rot)
{
struct axisang aa;
axisang_set(&aa, x, y, z, rot);
matrix4_rotate_aa(dst, m, &aa);
}
static inline void matrix4_scale3f(struct matrix4 *dst,
const struct matrix4 *m, float x, float y, float z)
{
struct vec3 v;
vec3_set(&v, x, y, z);
matrix4_scale(dst, m, &v);
}
#ifdef __cplusplus
}
#endif