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vec: minnadd and maxadd helpers

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Recep Aslantas
2018-11-29 10:50:24 +03:00
parent 4e08b7e335
commit 6d6954b208
9 changed files with 184 additions and 18 deletions
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38
include/cglm/vec3.h
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@@ -37,6 +37,8 @@
CGLM_INLINE void glm_vec3_subadd(vec3 a, vec3 b, vec3 dest);
CGLM_INLINE void glm_vec3_muladd(vec3 a, vec3 b, vec3 dest);
CGLM_INLINE void glm_vec3_muladds(vec3 a, float s, vec3 dest);
CGLM_INLINE void glm_vec3_maxadd(vec3 a, vec3 b, vec3 dest);
CGLM_INLINE void glm_vec3_minadd(vec3 a, vec3 b, vec3 dest);
CGLM_INLINE void glm_vec3_flipsign(vec3 v);
CGLM_INLINE void glm_vec3_flipsign_to(vec3 v, vec3 dest);
CGLM_INLINE void glm_vec3_negate_to(vec3 v, vec3 dest);
@@ -419,6 +421,40 @@ glm_vec3_muladds(vec3 a, float s, vec3 dest) {
dest[2] += a[2] * s;
}
/*!
* @brief add max of two vector to result/dest
*
* it applies += operator so dest must be initialized
*
* @param[in] a vector 1
* @param[in] b vector 2
* @param[out] dest dest += max(a, b)
*/
CGLM_INLINE
void
glm_vec3_maxadd(vec3 a, vec3 b, vec3 dest) {
dest[0] += glm_max(a[0], b[0]);
dest[1] += glm_max(a[1], b[1]);
dest[2] += glm_max(a[2], b[2]);
}
/*!
* @brief add min of two vector to result/dest
*
* it applies += operator so dest must be initialized
*
* @param[in] a vector
* @param[in] s scalar
* @param[out] dest dest += min(a, b)
*/
CGLM_INLINE
void
glm_vec3_minadd(vec3 a, vec3 b, vec3 dest) {
dest[0] += glm_min(a[0], b[0]);
dest[1] += glm_min(a[1], b[1]);
dest[2] += glm_min(a[2], b[2]);
}
/*!
* @brief negate vector components and store result in dest
*
@@ -732,7 +768,7 @@ glm_vec3_lerp(vec3 from, vec3 to, float t, vec3 dest) {
/* from + s * (to - from) */
glm_vec3_broadcast(glm_clamp_zo(t), s);
glm_vec3_sub(to, from, v);
glm_vec3_mulv(s, v, v);
glm_vec3_mul(s, v, v);
glm_vec3_add(from, v, dest);
}