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- /******************************************************************************
- Copyright (C) 2023 by Lain Bailey <lain@obsproject.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
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