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authorAaditya Dhruv <[email protected]>2026-01-25 15:10:37 -0600
committerAaditya Dhruv <[email protected]>2026-01-25 15:10:37 -0600
commit118980e02e59ff31871df59dce257075394f3533 (patch)
tree26fba4492bb4b561d21bf49b35d892a821d54fab /include/cglm/ivec2.h
parent0e6e1245b70df4dfcba135d50e1b53d1a8ef7eb8 (diff)
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-rw-r--r--include/cglm/ivec2.h659
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diff --git a/include/cglm/ivec2.h b/include/cglm/ivec2.h
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+++ b/include/cglm/ivec2.h
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+/*
+ * Copyright (c), Recep Aslantas.
+ *
+ * MIT License (MIT), http://opensource.org/licenses/MIT
+ * Full license can be found in the LICENSE file
+ */
+
+/*
+ Macros:
+ GLM_IVEC2_ONE_INIT
+ GLM_IVEC2_ZERO_INIT
+ GLM_IVEC2_ONE
+ GLM_IVEC2_ZERO
+
+ Functions:
+ CGLM_INLINE void glm_ivec2(int * __restrict v, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_copy(ivec2 a, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_zero(ivec2 v)
+ CGLM_INLINE void glm_ivec2_one(ivec2 v)
+ CGLM_INLINE int glm_ivec2_dot(ivec2 a, ivec2 b)
+ CGLM_INLINE int glm_ivec2_cross(ivec2 a, ivec2 b)
+ CGLM_INLINE void glm_ivec2_add(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_adds(ivec2 v, int s, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_sub(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_subs(ivec2 v, int s, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_mul(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_scale(ivec2 v, int s, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_div(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_divs(ivec2 v, int s, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_mod(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_addadd(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_addadds(ivec2 a, int s, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_subadd(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_subadds(ivec2 a, int s, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_muladd(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_muladds(ivec2 a, int s, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_maxadd(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_minadd(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_subsub(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_subsubs(ivec2 a, int s, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_addsub(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_addsubs(ivec2 a, int s, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_mulsub(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_mulsubs(ivec2 a, int s, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_maxsub(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_minsub(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE int glm_ivec2_distance2(ivec2 a, ivec2 b)
+ CGLM_INLINE float glm_ivec2_distance(ivec2 a, ivec2 b)
+ CGLM_INLINE void glm_ivec2_fill(ivec2 v, int val);
+ CGLM_INLINE bool glm_ivec2_eq(ivec2 v, int val);
+ CGLM_INLINE bool glm_ivec2_eqv(ivec2 a, ivec2 b);
+ CGLM_INLINE void glm_ivec2_maxv(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_minv(ivec2 a, ivec2 b, ivec2 dest)
+ CGLM_INLINE void glm_ivec2_clamp(ivec2 v, int minVal, int maxVal)
+ CGLM_INLINE void glm_ivec2_abs(ivec2 v, ivec2 dest)
+ */
+
+#ifndef cglm_ivec2_h
+#define cglm_ivec2_h
+
+#include "common.h"
+#include "util.h"
+
+#define GLM_IVEC2_ONE_INIT {1, 1}
+#define GLM_IVEC2_ZERO_INIT {0, 0}
+
+#define GLM_IVEC2_ONE ((ivec2)GLM_IVEC2_ONE_INIT)
+#define GLM_IVEC2_ZERO ((ivec2)GLM_IVEC2_ZERO_INIT)
+
+/*!
+ * @brief init ivec2 using vec3 or vec4
+ *
+ * @param[in] v vector
+ * @param[out] dest destination
+ */
+CGLM_INLINE
+void
+glm_ivec2(int * __restrict v, ivec2 dest) {
+ dest[0] = v[0];
+ dest[1] = v[1];
+}
+
+/*!
+ * @brief copy all members of [a] to [dest]
+ *
+ * @param[in] a source vector
+ * @param[out] dest destination
+ */
+CGLM_INLINE
+void
+glm_ivec2_copy(ivec2 a, ivec2 dest) {
+ dest[0] = a[0];
+ dest[1] = a[1];
+}
+
+/*!
+ * @brief set all members of [v] to zero
+ *
+ * @param[out] v vector
+ */
+CGLM_INLINE
+void
+glm_ivec2_zero(ivec2 v) {
+ v[0] = v[1] = 0;
+}
+
+/*!
+ * @brief set all members of [v] to one
+ *
+ * @param[out] v vector
+ */
+CGLM_INLINE
+void
+glm_ivec2_one(ivec2 v) {
+ v[0] = v[1] = 1;
+}
+
+/*!
+ * @brief ivec2 dot product
+ *
+ * @param[in] a vector1
+ * @param[in] b vector2
+ *
+ * @return dot product
+ */
+CGLM_INLINE
+int
+glm_ivec2_dot(ivec2 a, ivec2 b) {
+ return a[0] * b[0] + a[1] * b[1];
+}
+
+/*!
+ * @brief ivec2 cross product
+ *
+ * REF: http://allenchou.net/2013/07/cross-product-of-2d-vectors/
+ *
+ * @param[in] a vector1
+ * @param[in] b vector2
+ *
+ * @return Z component of cross product
+ */
+CGLM_INLINE
+int
+glm_ivec2_cross(ivec2 a, ivec2 b) {
+ return a[0] * b[1] - a[1] * b[0];
+}
+
+/*!
+ * @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_ivec2_add(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] = a[0] + b[0];
+ dest[1] = a[1] + b[1];
+}
+
+/*!
+ * @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_ivec2_adds(ivec2 v, int s, ivec2 dest) {
+ dest[0] = v[0] + s;
+ dest[1] = v[1] + 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_ivec2_sub(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] = a[0] - b[0];
+ dest[1] = a[1] - b[1];
+}
+
+/*!
+ * @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_ivec2_subs(ivec2 v, int s, ivec2 dest) {
+ dest[0] = v[0] - s;
+ dest[1] = v[1] - s;
+}
+
+/*!
+ * @brief multiply vector [a] with 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_ivec2_mul(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] = a[0] * b[0];
+ dest[1] = a[1] * b[1];
+}
+
+/*!
+ * @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_ivec2_scale(ivec2 v, int s, ivec2 dest) {
+ dest[0] = v[0] * s;
+ dest[1] = v[1] * s;
+}
+
+/*!
+ * @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])
+ */
+CGLM_INLINE
+void
+glm_ivec2_div(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] = a[0] / b[0];
+ dest[1] = a[1] / b[1];
+}
+
+/*!
+ * @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)
+ */
+CGLM_INLINE
+void
+glm_ivec2_divs(ivec2 v, int s, ivec2 dest) {
+ dest[0] = v[0] / s;
+ dest[1] = v[1] / s;
+}
+
+/*!
+ * @brief mod vector with another component-wise modulo: 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])
+ */
+CGLM_INLINE
+void
+glm_ivec2_mod(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] = a[0] % b[0];
+ dest[1] = a[1] % b[1];
+}
+
+/*!
+ * @brief add vector [a] with vector [b] and add result to vector [dest]
+ *
+ * applies += operator so dest must be initialized
+ *
+ * @param[in] a first vector
+ * @param[in] b second vector
+ * @param[out] dest dest += (a + b)
+ */
+CGLM_INLINE
+void
+glm_ivec2_addadd(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] += a[0] + b[0];
+ dest[1] += a[1] + b[1];
+}
+
+/*!
+ * @brief add scalar [s] onto vector [a] and add result to vector [dest]
+ *
+ * applies += operator so dest must be initialized
+ *
+ * @param[in] a vector
+ * @param[in] s scalar
+ * @param[out] dest dest += (a + s)
+ */
+CGLM_INLINE
+void
+glm_ivec2_addadds(ivec2 a, int s, ivec2 dest) {
+ dest[0] += a[0] + s;
+ dest[1] += a[1] + s;
+}
+
+/*!
+ * @brief subtract vector [a] from vector [b] and add result to [dest]
+ *
+ * applies += operator so dest must be initialized
+ *
+ * @param[in] a first vector
+ * @param[in] b second vector
+ * @param[out] dest dest += (a - b)
+ */
+CGLM_INLINE
+void
+glm_ivec2_subadd(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] += a[0] - b[0];
+ dest[1] += a[1] - b[1];
+}
+
+/*!
+ * @brief subtract scalar [s] from vector [a] and add result to [dest]
+ *
+ * applies += operator so dest must be initialized
+ *
+ * @param[in] a first
+ * @param[in] s scalar
+ * @param[out] dest dest += (a - s)
+ */
+CGLM_INLINE
+void
+glm_ivec2_subadds(ivec2 a, int s, ivec2 dest) {
+ dest[0] += a[0] - s;
+ dest[1] += a[1] - s;
+}
+
+/*!
+ * @brief multiply vector [a] with vector [b] and add result to [dest]
+ *
+ * applies += operator so dest must be initialized
+ *
+ * @param[in] a first vector
+ * @param[in] b second vector
+ * @param[out] dest dest += (a * b)
+ */
+CGLM_INLINE
+void
+glm_ivec2_muladd(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] += a[0] * b[0];
+ dest[1] += a[1] * b[1];
+}
+
+/*!
+ * @brief multiply vector [a] with scalar [s] and add result to [dest]
+ *
+ * applies += operator so dest must be initialized
+ *
+ * @param[in] a vector
+ * @param[in] s scalar
+ * @param[out] dest dest += (a * s)
+ */
+CGLM_INLINE
+void
+glm_ivec2_muladds(ivec2 a, int s, ivec2 dest) {
+ dest[0] += a[0] * s;
+ dest[1] += a[1] * s;
+}
+
+/*!
+ * @brief add maximum of vector [a] and vector [b] to vector [dest]
+ *
+ * applies += operator so dest must be initialized
+ *
+ * @param[in] a first vector
+ * @param[in] b second vector
+ * @param[out] dest dest += max(a, b)
+ */
+CGLM_INLINE
+void
+glm_ivec2_maxadd(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] += glm_imax(a[0], b[0]);
+ dest[1] += glm_imax(a[1], b[1]);
+}
+
+/*!
+ * @brief add minimum of vector [a] and vector [b] to vector [dest]
+ *
+ * applies += operator so dest must be initialized
+ *
+ * @param[in] a first vector
+ * @param[in] b second vector
+ * @param[out] dest dest += min(a, b)
+ */
+CGLM_INLINE
+void
+glm_ivec2_minadd(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] += glm_imin(a[0], b[0]);
+ dest[1] += glm_imin(a[1], b[1]);
+}
+
+/*!
+ * @brief subtract vector [a] from vector [b] and subtract result from [dest]
+ *
+ * applies -= operator so dest must be initialized
+ *
+ * @param[in] a first vector
+ * @param[in] b second vector
+ * @param[out] dest dest -= (a - b)
+ */
+CGLM_INLINE
+void
+glm_ivec2_subsub(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] -= a[0] - b[0];
+ dest[1] -= a[1] - b[1];
+}
+
+/*!
+ * @brief subtract scalar [s] from vector [a] and subtract result from [dest]
+ *
+ * applies -= operator so dest must be initialized
+ *
+ * @param[in] a vector
+ * @param[in] s scalar
+ * @param[out] dest dest -= (a - s)
+ */
+CGLM_INLINE
+void
+glm_ivec2_subsubs(ivec2 a, int s, ivec2 dest) {
+ dest[0] -= a[0] - s;
+ dest[1] -= a[1] - s;
+}
+
+/*!
+ * @brief add vector [a] to vector [b] and subtract the result from [dest]
+ *
+ * applies -= operator so dest must be initialized
+ *
+ * @param[in] a vector
+ * @param[in] b scalar
+ * @param[out] dest dest -= (a + b)
+ */
+CGLM_INLINE
+void
+glm_ivec2_addsub(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] -= a[0] + b[0];
+ dest[1] -= a[1] + b[1];
+}
+
+/*!
+ * @brief add scalar [s] to vector [a] and subtract the result from [dest]
+ *
+ * applies -= operator so dest must be initialized
+ *
+ * @param[in] a vector
+ * @param[in] s scalar
+ * @param[out] dest dest -= (a + b)
+ */
+CGLM_INLINE
+void
+glm_ivec2_addsubs(ivec2 a, int s, ivec2 dest) {
+ dest[0] -= a[0] + s;
+ dest[1] -= a[1] + s;
+}
+
+/*!
+ * @brief multiply vector [a] and vector [b] and subtract the result from [dest]
+ *
+ * applies -= operator so dest must be initialized
+ *
+ * @param[in] a vector
+ * @param[in] b scalar
+ * @param[out] dest dest -= (a * b)
+ */
+CGLM_INLINE
+void
+glm_ivec2_mulsub(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] -= a[0] * b[0];
+ dest[1] -= a[1] * b[1];
+}
+
+/*!
+ * @brief multiply vector [a] with scalar [s] and subtract the result from [dest]
+ *
+ * applies -= operator so dest must be initialized
+ *
+ * @param[in] a vector
+ * @param[in] s scalar
+ * @param[out] dest dest -= (a * s)
+ */
+CGLM_INLINE
+void
+glm_ivec2_mulsubs(ivec2 a, int s, ivec2 dest) {
+ dest[0] -= a[0] * s;
+ dest[1] -= a[1] * s;
+}
+
+/*!
+ * @brief subtract maximum of vector [a] and vector [b] from vector [dest]
+ *
+ * applies += operator so dest must be initialized
+ *
+ * @param[in] a first vector
+ * @param[in] b second vector
+ * @param[out] dest dest -= max(a, b)
+ */
+CGLM_INLINE
+void
+glm_ivec2_maxsub(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] -= glm_imax(a[0], b[0]);
+ dest[1] -= glm_imax(a[1], b[1]);
+}
+
+/*!
+ * @brief subtract minimum of vector [a] and vector [b] from vector [dest]
+ *
+ * applies -= operator so dest must be initialized
+ *
+ * @param[in] a first vector
+ * @param[in] b second vector
+ * @param[out] dest dest -= min(a, b)
+ */
+CGLM_INLINE
+void
+glm_ivec2_minsub(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] -= glm_imin(a[0], b[0]);
+ dest[1] -= glm_imin(a[1], b[1]);
+}
+
+/*!
+ * @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_ivec2_distance2(ivec2 a, ivec2 b) {
+ int xd, yd;
+ xd = a[0] - b[0];
+ yd = a[1] - b[1];
+ return xd * xd + yd * yd;
+}
+
+/*!
+ * @brief distance between two vectors
+ *
+ * @param[in] a first vector
+ * @param[in] b second vector
+ * @return returns distance
+ */
+CGLM_INLINE
+float
+glm_ivec2_distance(ivec2 a, ivec2 b) {
+ return sqrtf((float)glm_ivec2_distance2(a, b));
+}
+
+
+/*!
+ * @brief fill a vector with specified value
+ *
+ * @param[out] v dest
+ * @param[in] val value
+ */
+CGLM_INLINE
+void
+glm_ivec2_fill(ivec2 v, int val) {
+ v[0] = v[1] = val;
+}
+
+/*!
+ * @brief check if vector is equal to value
+ *
+ * @param[in] v vector
+ * @param[in] val value
+ */
+CGLM_INLINE
+bool
+glm_ivec2_eq(ivec2 v, int val) {
+ return v[0] == val && v[0] == v[1];
+}
+
+/*!
+ * @brief check if vector is equal to another
+ *
+ * @param[in] a vector
+ * @param[in] b vector
+ */
+CGLM_INLINE
+bool
+glm_ivec2_eqv(ivec2 a, ivec2 b) {
+ return a[0] == b[0]
+ && a[1] == b[1];
+}
+
+/*!
+ * @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_ivec2_maxv(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] = a[0] > b[0] ? a[0] : b[0];
+ dest[1] = a[1] > b[1] ? a[1] : b[1];
+}
+
+/*!
+ * @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_ivec2_minv(ivec2 a, ivec2 b, ivec2 dest) {
+ dest[0] = a[0] < b[0] ? a[0] : b[0];
+ dest[1] = a[1] < b[1] ? a[1] : b[1];
+}
+
+/*!
+ * @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_ivec2_clamp(ivec2 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;
+}
+
+/*!
+ * @brief absolute value of v
+ *
+ * @param[in] v vector
+ * @param[out] dest destination
+ */
+CGLM_INLINE
+void
+glm_ivec2_abs(ivec2 v, ivec2 dest) {
+ dest[0] = abs(v[0]);
+ dest[1] = abs(v[1]);
+}
+
+#endif /* cglm_ivec2_h */