274 lines
5.7 KiB
C
274 lines
5.7 KiB
C
/*
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* Copyright (c), Recep Aslantas.
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*
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* MIT License (MIT), http://opensource.org/licenses/MIT
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* Full license can be found in the LICENSE file
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*/
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/*
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FUNCTIONS:
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CGLM_INLINE void glm_ivec3(ivec4 v4, ivec3 dest)
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CGLM_INLINE void glm_ivec3_copy(ivec3 a, ivec3 dest)
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CGLM_INLINE void glm_ivec3_zero(ivec3 v)
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CGLM_INLINE void glm_ivec3_one(ivec3 v)
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CGLM_INLINE void glm_ivec3_add(ivec3 a, ivec3 b, ivec3 dest)
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CGLM_INLINE void glm_ivec3_adds(ivec3 v, int s, ivec3 dest)
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CGLM_INLINE void glm_ivec3_sub(ivec3 a, ivec3 b, ivec3 dest)
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CGLM_INLINE void glm_ivec3_subs(ivec3 v, int s, ivec3 dest)
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CGLM_INLINE void glm_ivec3_mul(ivec3 a, ivec3 b, ivec3 dest)
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CGLM_INLINE void glm_ivec3_scale(ivec3 v, int s, ivec3 dest)
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CGLM_INLINE int glm_ivec3_distance2(ivec3 a, ivec3 b)
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CGLM_INLINE float glm_ivec3_distance(ivec3 a, ivec3 b)
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CGLM_INLINE void glm_ivec3_maxv(ivec3 a, ivec3 b, ivec3 dest)
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CGLM_INLINE void glm_ivec3_minv(ivec3 a, ivec3 b, ivec3 dest)
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CGLM_INLINE void glm_ivec3_clamp(ivec3 v, int minVal, int maxVal)
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CGLM_INLINE void glm_ivec3_abs(ivec3 v, ivec3 dest)
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*/
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#ifndef cglm_ivec3_h
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#define cglm_ivec3_h
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#include "common.h"
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/*!
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* @brief init ivec3 using ivec4
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*
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* @param[in] v4 vector4
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* @param[out] dest destination
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*/
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CGLM_INLINE
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void
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glm_ivec3(ivec4 v4, ivec3 dest) {
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dest[0] = v4[0];
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dest[1] = v4[1];
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dest[2] = v4[2];
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}
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/*!
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* @brief copy all members of [a] to [dest]
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*
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* @param[in] a source vector
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* @param[out] dest destination
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*/
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CGLM_INLINE
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void
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glm_ivec3_copy(ivec3 a, ivec3 dest) {
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dest[0] = a[0];
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dest[1] = a[1];
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dest[2] = a[2];
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}
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/*!
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* @brief set all members of [v] to zero
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*
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* @param[out] v vector
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*/
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CGLM_INLINE
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void
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glm_ivec3_zero(ivec3 v) {
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v[0] = v[1] = v[2] = 0;
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}
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/*!
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* @brief set all members of [v] to one
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*
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* @param[out] v vector
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*/
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CGLM_INLINE
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void
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glm_ivec3_one(ivec3 v) {
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v[0] = v[1] = v[2] = 1;
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}
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/*!
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* @brief add vector [a] to vector [b] and store result in [dest]
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*
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* @param[in] a first vector
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* @param[in] b second vector
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* @param[out] dest destination
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*/
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CGLM_INLINE
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void
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glm_ivec3_add(ivec3 a, ivec3 b, ivec3 dest) {
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dest[0] = a[0] + b[0];
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dest[1] = a[1] + b[1];
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dest[2] = a[2] + b[2];
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}
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/*!
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* @brief add scalar s to vector [v] and store result in [dest]
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*
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* @param[in] v vector
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* @param[in] s scalar
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* @param[out] dest destination
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*/
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CGLM_INLINE
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void
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glm_ivec3_adds(ivec3 v, int s, ivec3 dest) {
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dest[0] = v[0] + s;
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dest[1] = v[1] + s;
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dest[2] = v[2] + s;
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}
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/*!
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* @brief subtract vector [b] from vector [a] and store result in [dest]
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*
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* @param[in] a first vector
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* @param[in] b second vector
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* @param[out] dest destination
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*/
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CGLM_INLINE
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void
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glm_ivec3_sub(ivec3 a, ivec3 b, ivec3 dest) {
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dest[0] = a[0] - b[0];
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dest[1] = a[1] - b[1];
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dest[2] = a[2] - b[2];
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}
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/*!
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* @brief subtract scalar s from vector [v] and store result in [dest]
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*
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* @param[in] v vector
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* @param[in] s scalar
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* @param[out] dest destination
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*/
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CGLM_INLINE
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void
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glm_ivec3_subs(ivec3 v, int s, ivec3 dest) {
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dest[0] = v[0] - s;
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dest[1] = v[1] - s;
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dest[2] = v[2] - s;
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}
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/*!
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* @brief multiply vector [a] with vector [b] and store result in [dest]
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*
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* @param[in] a frist vector
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* @param[in] b second vector
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* @param[out] dest destination
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*/
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CGLM_INLINE
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void
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glm_ivec3_mul(ivec3 a, ivec3 b, ivec3 dest) {
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dest[0] = a[0] * b[0];
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dest[1] = a[1] * b[1];
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dest[2] = a[2] * b[2];
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}
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/*!
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* @brief multiply vector [a] with scalar s and store result in [dest]
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*
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* @param[in] v vector
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* @param[in] s scalar
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* @param[out] dest destination
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*/
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CGLM_INLINE
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void
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glm_ivec3_scale(ivec3 v, int s, ivec3 dest) {
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dest[0] = v[0] * s;
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dest[1] = v[1] * s;
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dest[2] = v[2] * s;
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}
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/*!
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* @brief squared distance between two vectors
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*
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* @param[in] a first vector
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* @param[in] b second vector
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* @return returns squared distance (distance * distance)
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*/
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CGLM_INLINE
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int
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glm_ivec3_distance2(ivec3 a, ivec3 b) {
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int xd, yd, zd;
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xd = a[0] - b[0];
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yd = a[1] - b[1];
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zd = a[2] - b[2];
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return xd * xd + yd * yd + zd * zd;
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}
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/*!
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* @brief distance between two vectors
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*
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* @param[in] a first vector
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* @param[in] b second vector
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* @return returns distance
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*/
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CGLM_INLINE
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float
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glm_ivec3_distance(ivec3 a, ivec3 b) {
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return sqrtf((float)glm_ivec3_distance2(a, b));
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}
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/*!
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* @brief set each member of dest to greater of vector a and b
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*
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* @param[in] a first vector
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* @param[in] b second vector
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* @param[out] dest destination
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*/
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CGLM_INLINE
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void
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glm_ivec3_maxv(ivec3 a, ivec3 b, ivec3 dest) {
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dest[0] = a[0] > b[0] ? a[0] : b[0];
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dest[1] = a[1] > b[1] ? a[1] : b[1];
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dest[2] = a[2] > b[2] ? a[2] : b[2];
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}
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/*!
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* @brief set each member of dest to lesser of vector a and b
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*
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* @param[in] a first vector
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* @param[in] b second vector
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* @param[out] dest destination
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*/
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CGLM_INLINE
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void
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glm_ivec3_minv(ivec3 a, ivec3 b, ivec3 dest) {
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dest[0] = a[0] < b[0] ? a[0] : b[0];
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dest[1] = a[1] < b[1] ? a[1] : b[1];
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dest[2] = a[2] < b[2] ? a[2] : b[2];
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}
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/*!
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* @brief clamp each member of [v] between minVal and maxVal (inclusive)
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*
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* @param[in, out] v vector
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* @param[in] minVal minimum value
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* @param[in] maxVal maximum value
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*/
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CGLM_INLINE
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void
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glm_ivec3_clamp(ivec3 v, int minVal, int maxVal) {
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if (v[0] < minVal)
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v[0] = minVal;
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else if(v[0] > maxVal)
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v[0] = maxVal;
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if (v[1] < minVal)
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v[1] = minVal;
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else if(v[1] > maxVal)
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v[1] = maxVal;
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if (v[2] < minVal)
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v[2] = minVal;
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else if(v[2] > maxVal)
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v[2] = maxVal;
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}
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/*!
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* @brief absolute value of v
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*
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* @param[in] v vector
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* @param[out] dest destination
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*/
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CGLM_INLINE
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void
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glm_ivec3_abs(ivec3 v, ivec3 dest) {
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dest[0] = abs(v[0]);
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dest[1] = abs(v[1]);
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dest[2] = abs(v[2]);
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}
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#endif /* cglm_ivec3_h */
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