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vector: optimize vec* normalize_to

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This commit is contained in:
Recep Aslantas
2016-11-29 17:45:15 +02:00
parent 6e08757605
commit 3713ac2599
1 changed files with 42 additions and 47 deletions
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89
include/cglm-vec.h
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@@ -135,53 +135,6 @@ glm_vec4_norm(vec4 vec) {
+ vec[2] * vec[2] + vec[3] * vec[3]);
}
/*!
* @brief normalize vec3 to dest
*
* @param[in] vec source
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_vec_normalize_to(vec3 vec, vec3 dest) {
float norm;
norm = glm_vec_norm(vec);
if (norm == 0.0f) {
dest[0] = dest[1] = dest[2] = 0.0f;
return;
}
dest[0] = vec[0] / norm;
dest[1] = vec[1] / norm;
dest[2] = vec[2] / norm;
}
/*!
* @brief normalize vec4 to dest
*
* @param[in] vec source
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_vec4_normalize_to(vec4 vec, vec4 dest) {
float norm;
norm = glm_vec4_norm(vec);
if (norm == 0.0f) {
dest[0] = dest[1] = dest[2] = dest[3] == 0.0f;
return;
}
dest[0] = vec[0] / norm;
dest[1] = vec[1] / norm;
dest[2] = vec[2] / norm;
dest[3] = vec[3] / norm;
}
/*!
* @brief add v2 vector to v1 vector store result in dest
*
@@ -369,6 +322,48 @@ glm_vec4_normalize(vec4 v) {
glm_vec4_scale(v, 1.0f / norm, v);
}
/*!
* @brief normalize vec3 to dest
*
* @param[in] vec source
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_vec_normalize_to(vec3 vec, vec3 dest) {
float norm;
norm = glm_vec_norm(vec);
if (norm == 0.0f) {
dest[0] = dest[1] = dest[2] = 0.0f;
return;
}
glm_vec_scale(vec, 1.0f / norm, dest);
}
/*!
* @brief normalize vec4 to dest
*
* @param[in] vec source
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_vec4_normalize_to(vec4 vec, vec4 dest) {
float norm;
norm = glm_vec4_norm(vec);
if (norm == 0.0f) {
dest[0] = dest[1] = dest[2] = dest[3] == 0.0f;
return;
}
glm_vec4_scale(vec, 1.0f / norm, dest);
}
/*!
* @brief angle betwen two vector
*