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vec: add some new functions for vector

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* _mul: multiply two vector (replacement for _mulv)
* _div: div two vector
* _divs: div vector with scalar
* adds: add scalar to each components of vec
* subs: sub scalar from each components of vec
This commit is contained in:
Recep Aslantas
2018-04-13 15:12:56 +03:00
parent af5a2627b4
commit d841f8809d
12 changed files with 510 additions and 72 deletions
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114
include/cglm/vec3.h
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@@ -28,10 +28,15 @@
CGLM_INLINE void glm_vec_cross(vec3 a, vec3 b, vec3 d);
CGLM_INLINE float glm_vec_norm2(vec3 v);
CGLM_INLINE float glm_vec_norm(vec3 vec);
CGLM_INLINE void glm_vec_add(vec3 v1, vec3 v2, vec3 dest);
CGLM_INLINE void glm_vec_sub(vec3 v1, vec3 v2, vec3 dest);
CGLM_INLINE void glm_vec_add(vec3 a, vec3 b, vec3 dest);
CGLM_INLINE void glm_vec_adds(vec3 a, float s, vec3 dest);
CGLM_INLINE void glm_vec_sub(vec3 a, vec3 b, vec3 dest);
CGLM_INLINE void glm_vec_subs(vec3 a, float s, vec3 dest);
CGLM_INLINE void glm_vec_mul(vec3 a, vec3 b, vec3 dest);
CGLM_INLINE void glm_vec_scale(vec3 v, float s, vec3 dest);
CGLM_INLINE void glm_vec_scale_as(vec3 v, float s, vec3 dest);
CGLM_INLINE void glm_vec_div(vec3 a, vec3 b, vec3 dest);
CGLM_INLINE void glm_vec_divs(vec3 a, float s, vec3 dest);
CGLM_INLINE void glm_vec_flipsign(vec3 v);
CGLM_INLINE void glm_vec_inv(vec3 v);
CGLM_INLINE void glm_vec_inv_to(vec3 v, vec3 dest);
@@ -110,7 +115,7 @@ glm_vec_copy(vec3 a, vec3 dest) {
*/
CGLM_INLINE
void
glm_vec_zero(vec4 v) {
glm_vec_zero(vec3 v) {
v[0] = 0.0f;
v[1] = 0.0f;
v[2] = 0.0f;
@@ -123,7 +128,7 @@ glm_vec_zero(vec4 v) {
*/
CGLM_INLINE
void
glm_vec_one(vec4 v) {
glm_vec_one(vec3 v) {
v[0] = 1.0f;
v[1] = 1.0f;
v[2] = 1.0f;
@@ -190,33 +195,78 @@ glm_vec_norm(vec3 vec) {
}
/*!
* @brief add v2 vector to v1 vector store result in dest
* @brief add a vector to b vector store result in dest
*
* @param[in] v1 vector1
* @param[in] v2 vector2
* @param[in] a vector1
* @param[in] b vector2
* @param[out] dest destination vector
*/
CGLM_INLINE
void
glm_vec_add(vec3 v1, vec3 v2, vec3 dest) {
dest[0] = v1[0] + v2[0];
dest[1] = v1[1] + v2[1];
dest[2] = v1[2] + v2[2];
glm_vec_add(vec3 a, vec3 b, vec3 dest) {
dest[0] = a[0] + b[0];
dest[1] = a[1] + b[1];
dest[2] = a[2] + b[2];
}
/*!
* @brief add scalar to v vector store result in dest (d = v + s)
*
* @param[in] v vector
* @param[in] s scalar
* @param[out] dest destination vector
*/
CGLM_INLINE
void
glm_vec_adds(vec3 v, float s, vec3 dest) {
dest[0] = v[0] + s;
dest[1] = v[1] + s;
dest[2] = v[2] + s;
}
/*!
* @brief subtract v2 vector from v1 vector store result in dest
*
* @param[in] v1 vector1
* @param[in] v2 vector2
* @param[in] a vector1
* @param[in] b vector2
* @param[out] dest destination vector
*/
CGLM_INLINE
void
glm_vec_sub(vec3 v1, vec3 v2, vec3 dest) {
dest[0] = v1[0] - v2[0];
dest[1] = v1[1] - v2[1];
dest[2] = v1[2] - v2[2];
glm_vec_sub(vec3 a, vec3 b, vec3 dest) {
dest[0] = a[0] - b[0];
dest[1] = a[1] - b[1];
dest[2] = a[2] - b[2];
}
/*!
* @brief subtract scalar from v vector store result in dest (d = v - s)
*
* @param[in] v vector
* @param[in] s scalar
* @param[out] dest destination vector
*/
CGLM_INLINE
void
glm_vec_subs(vec3 v, float s, vec3 dest) {
dest[0] = v[0] - s;
dest[1] = v[1] - s;
dest[2] = v[2] - s;
}
/*!
* @brief multiply two vector (component-wise multiplication)
*
* @param a v1
* @param b v2
* @param d v3 = (a[0] * b[0], a[1] * b[1], a[2] * b[2])
*/
CGLM_INLINE
void
glm_vec_mul(vec3 a, vec3 b, vec3 d) {
d[0] = a[0] * b[0];
d[1] = a[1] * b[1];
d[2] = a[2] * b[2];
}
/*!
@@ -255,6 +305,36 @@ glm_vec_scale_as(vec3 v, float s, vec3 dest) {
glm_vec_scale(v, s / norm, dest);
}
/*!
* @brief div vector with another component-wise division: d = a / b
*
* @param[in] a vector 1
* @param[in] b vector 2
* @param[out] dest result = (a[0]/b[0], a[1]/b[1], a[2]/b[2])
*/
CGLM_INLINE
void
glm_vec_div(vec3 a, vec3 b, vec3 dest) {
dest[0] = a[0] / b[0];
dest[1] = a[1] / b[1];
dest[2] = a[2] / b[2];
}
/*!
* @brief div vector with scalar: d = v / s
*
* @param[in] v vector
* @param[in] s scalar
* @param[out] dest result = (a[0]/s, a[1]/s, a[2]/s)
*/
CGLM_INLINE
void
glm_vec_divs(vec3 v, float s, vec3 dest) {
dest[0] = v[0] / s;
dest[1] = v[1] / s;
dest[2] = v[2] / s;
}
/*!
* @brief flip sign of all vec3 members
*