frillrun/include/cglm/ivec4.h
2024-08-24 00:47:58 -04:00

292 lines
6.2 KiB
C

/*
* Copyright (c), Recep Aslantas.
*
* MIT License (MIT), http://opensource.org/licenses/MIT
* Full license can be found in the LICENSE file
*/
/*
FUNCTIONS:
CGLM_INLINE void glm_ivec4(ivec3 v3, int last, ivec4 dest)
CGLM_INLINE void glm_ivec4_copy(ivec4 a, ivec4 dest)
CGLM_INLINE void glm_ivec4_zero(ivec4 v)
CGLM_INLINE void glm_ivec4_one(ivec4 v)
CGLM_INLINE void glm_ivec4_add(ivec4 a, ivec4 b, ivec4 dest)
CGLM_INLINE void glm_ivec4_adds(ivec4 v, int s, ivec4 dest)
CGLM_INLINE void glm_ivec4_sub(ivec4 a, ivec4 b, ivec4 dest)
CGLM_INLINE void glm_ivec4_subs(ivec4 v, int s, ivec4 dest)
CGLM_INLINE void glm_ivec4_mul(ivec4 a, ivec4 b, ivec4 dest)
CGLM_INLINE void glm_ivec4_scale(ivec4 v, int s, ivec4 dest)
CGLM_INLINE int glm_ivec4_distance2(ivec4 a, ivec4 b)
CGLM_INLINE float glm_ivec4_distance(ivec4 a, ivec4 b)
CGLM_INLINE void glm_ivec4_maxv(ivec4 a, ivec4 b, ivec4 dest)
CGLM_INLINE void glm_ivec4_minv(ivec4 a, ivec4 b, ivec4 dest)
CGLM_INLINE void glm_ivec4_clamp(ivec4 v, int minVal, int maxVal)
CGLM_INLINE void glm_ivec4_abs(ivec4 v, ivec4 dest)
*/
#ifndef cglm_ivec4_h
#define cglm_ivec4_h
#include "common.h"
/*!
* @brief init ivec4 using ivec3
*
* @param[in] v3 vector3
* @param[in] last last item
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec4(ivec3 v3, int last, ivec4 dest) {
dest[0] = v3[0];
dest[1] = v3[1];
dest[2] = v3[2];
dest[3] = last;
}
/*!
* @brief copy all members of [a] to [dest]
*
* @param[in] a source vector
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec4_copy(ivec4 a, ivec4 dest) {
dest[0] = a[0];
dest[1] = a[1];
dest[2] = a[2];
dest[3] = a[3];
}
/*!
* @brief set all members of [v] to zero
*
* @param[out] v vector
*/
CGLM_INLINE
void
glm_ivec4_zero(ivec4 v) {
v[0] = v[1] = v[2] = v[3] = 0;
}
/*!
* @brief set all members of [v] to one
*
* @param[out] v vector
*/
CGLM_INLINE
void
glm_ivec4_one(ivec4 v) {
v[0] = v[1] = v[2] = v[3] = 1;
}
/*!
* @brief add vector [a] to vector [b] and store result in [dest]
*
* @param[in] a first vector
* @param[in] b second vector
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec4_add(ivec4 a, ivec4 b, ivec4 dest) {
dest[0] = a[0] + b[0];
dest[1] = a[1] + b[1];
dest[2] = a[2] + b[2];
dest[3] = a[3] + b[3];
}
/*!
* @brief add scalar s to vector [v] and store result in [dest]
*
* @param[in] v vector
* @param[in] s scalar
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec4_adds(ivec4 v, int s, ivec4 dest) {
dest[0] = v[0] + s;
dest[1] = v[1] + s;
dest[2] = v[2] + s;
dest[3] = v[3] + s;
}
/*!
* @brief subtract vector [b] from vector [a] and store result in [dest]
*
* @param[in] a first vector
* @param[in] b second vector
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec4_sub(ivec4 a, ivec4 b, ivec4 dest) {
dest[0] = a[0] - b[0];
dest[1] = a[1] - b[1];
dest[2] = a[2] - b[2];
dest[3] = a[3] - b[3];
}
/*!
* @brief subtract scalar s from vector [v] and store result in [dest]
*
* @param[in] v vector
* @param[in] s scalar
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec4_subs(ivec4 v, int s, ivec4 dest) {
dest[0] = v[0] - s;
dest[1] = v[1] - s;
dest[2] = v[2] - s;
dest[3] = v[3] - s;
}
/*!
* @brief multiply vector [a] with vector [b] and store result in [dest]
*
* @param[in] a frist vector
* @param[in] b second vector
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec4_mul(ivec4 a, ivec4 b, ivec4 dest) {
dest[0] = a[0] * b[0];
dest[1] = a[1] * b[1];
dest[2] = a[2] * b[2];
dest[3] = a[3] * b[3];
}
/*!
* @brief multiply vector [a] with scalar s and store result in [dest]
*
* @param[in] v vector
* @param[in] s scalar
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec4_scale(ivec4 v, int s, ivec4 dest) {
dest[0] = v[0] * s;
dest[1] = v[1] * s;
dest[2] = v[2] * s;
dest[3] = v[3] * s;
}
/*!
* @brief squared distance between two vectors
*
* @param[in] a first vector
* @param[in] b second vector
* @return returns squared distance (distance * distance)
*/
CGLM_INLINE
int
glm_ivec4_distance2(ivec4 a, ivec4 b) {
int xd, yd, zd, wd;
xd = a[0] - b[0];
yd = a[1] - b[1];
zd = a[2] - b[2];
wd = a[3] - b[3];
return xd * xd + yd * yd + zd * zd + wd * wd;
}
/*!
* @brief distance between two vectors
*
* @param[in] a first vector
* @param[in] b second vector
* @return returns distance
*/
CGLM_INLINE
float
glm_ivec4_distance(ivec4 a, ivec4 b) {
return sqrtf((float)glm_ivec4_distance2(a, b));
}
/*!
* @brief set each member of dest to greater of vector a and b
*
* @param[in] a first vector
* @param[in] b second vector
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec4_maxv(ivec4 a, ivec4 b, ivec4 dest) {
dest[0] = a[0] > b[0] ? a[0] : b[0];
dest[1] = a[1] > b[1] ? a[1] : b[1];
dest[2] = a[2] > b[2] ? a[2] : b[2];
dest[3] = a[3] > b[3] ? a[3] : b[3];
}
/*!
* @brief set each member of dest to lesser of vector a and b
*
* @param[in] a first vector
* @param[in] b second vector
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec4_minv(ivec4 a, ivec4 b, ivec4 dest) {
dest[0] = a[0] < b[0] ? a[0] : b[0];
dest[1] = a[1] < b[1] ? a[1] : b[1];
dest[2] = a[2] < b[2] ? a[2] : b[2];
dest[3] = a[3] < b[3] ? a[3] : b[3];
}
/*!
* @brief clamp each member of [v] between minVal and maxVal (inclusive)
*
* @param[in, out] v vector
* @param[in] minVal minimum value
* @param[in] maxVal maximum value
*/
CGLM_INLINE
void
glm_ivec4_clamp(ivec4 v, int minVal, int maxVal) {
if (v[0] < minVal)
v[0] = minVal;
else if(v[0] > maxVal)
v[0] = maxVal;
if (v[1] < minVal)
v[1] = minVal;
else if(v[1] > maxVal)
v[1] = maxVal;
if (v[2] < minVal)
v[2] = minVal;
else if(v[2] > maxVal)
v[2] = maxVal;
if (v[3] < minVal)
v[3] = minVal;
else if(v[3] > maxVal)
v[3] = maxVal;
}
/*!
* @brief absolute value of v
*
* @param[in] v vector
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec4_abs(ivec4 v, ivec4 dest) {
dest[0] = abs(v[0]);
dest[1] = abs(v[1]);
dest[2] = abs(v[2]);
dest[3] = abs(v[3]);
}
#endif /* cglm_ivec4_h */