257 lines
5.3 KiB
C
257 lines
5.3 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_ivec2(int * __restrict v, ivec2 dest)
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CGLM_INLINE void glm_ivec2_copy(ivec2 a, ivec2 dest)
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CGLM_INLINE void glm_ivec2_zero(ivec2 v)
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CGLM_INLINE void glm_ivec2_one(ivec2 v)
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CGLM_INLINE void glm_ivec2_add(ivec2 a, ivec2 b, ivec2 dest)
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CGLM_INLINE void glm_ivec2_adds(ivec2 v, int s, ivec2 dest)
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CGLM_INLINE void glm_ivec2_sub(ivec2 a, ivec2 b, ivec2 dest)
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CGLM_INLINE void glm_ivec2_subs(ivec2 v, int s, ivec2 dest)
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CGLM_INLINE void glm_ivec2_mul(ivec2 a, ivec2 b, ivec2 dest)
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CGLM_INLINE void glm_ivec2_scale(ivec2 v, int s, ivec2 dest)
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CGLM_INLINE int glm_ivec2_distance2(ivec2 a, ivec2 b)
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CGLM_INLINE float glm_ivec2_distance(ivec2 a, ivec2 b)
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CGLM_INLINE void glm_ivec2_maxv(ivec2 a, ivec2 b, ivec2 dest)
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CGLM_INLINE void glm_ivec2_minv(ivec2 a, ivec2 b, ivec2 dest)
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CGLM_INLINE void glm_ivec2_clamp(ivec2 v, int minVal, int maxVal)
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CGLM_INLINE void glm_ivec2_abs(ivec2 v, ivec2 dest)
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*/
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#ifndef cglm_ivec2_h
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#define cglm_ivec2_h
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#include "common.h"
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/*!
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* @brief init ivec2 using vec3 or vec4
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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_ivec2(int * __restrict v, ivec2 dest) {
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dest[0] = v[0];
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dest[1] = v[1];
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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_ivec2_copy(ivec2 a, ivec2 dest) {
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dest[0] = a[0];
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dest[1] = a[1];
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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_ivec2_zero(ivec2 v) {
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v[0] = v[1] = 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_ivec2_one(ivec2 v) {
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v[0] = v[1] = 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_ivec2_add(ivec2 a, ivec2 b, ivec2 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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}
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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_ivec2_adds(ivec2 v, int s, ivec2 dest) {
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dest[0] = v[0] + s;
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dest[1] = v[1] + 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_ivec2_sub(ivec2 a, ivec2 b, ivec2 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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}
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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_ivec2_subs(ivec2 v, int s, ivec2 dest) {
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dest[0] = v[0] - s;
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dest[1] = v[1] - 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_ivec2_mul(ivec2 a, ivec2 b, ivec2 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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}
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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_ivec2_scale(ivec2 v, int s, ivec2 dest) {
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dest[0] = v[0] * s;
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dest[1] = v[1] * 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_ivec2_distance2(ivec2 a, ivec2 b) {
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int xd, yd;
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xd = a[0] - b[0];
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yd = a[1] - b[1];
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return xd * xd + yd * yd;
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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_ivec2_distance(ivec2 a, ivec2 b) {
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return sqrtf((float)glm_ivec2_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_ivec2_maxv(ivec2 a, ivec2 b, ivec2 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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}
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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_ivec2_minv(ivec2 a, ivec2 b, ivec2 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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}
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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_ivec2_clamp(ivec2 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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}
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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_ivec2_abs(ivec2 v, ivec2 dest) {
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dest[0] = abs(v[0]);
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dest[1] = abs(v[1]);
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}
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#endif /* cglm_ivec2_h */
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