summaryrefslogtreecommitdiff
path: root/include/cglm/vec2-ext.h
diff options
context:
space:
mode:
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/vec2-ext.h
parent0e6e1245b70df4dfcba135d50e1b53d1a8ef7eb8 (diff)
wip
Diffstat (limited to 'include/cglm/vec2-ext.h')
-rw-r--r--include/cglm/vec2-ext.h337
1 files changed, 337 insertions, 0 deletions
diff --git a/include/cglm/vec2-ext.h b/include/cglm/vec2-ext.h
new file mode 100644
index 0000000..6186f07
--- /dev/null
+++ b/include/cglm/vec2-ext.h
@@ -0,0 +1,337 @@
+/*
+ * 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_vec2_fill(vec2 v, float val)
+ CGLM_INLINE bool glm_vec2_eq(vec2 v, float val);
+ CGLM_INLINE bool glm_vec2_eq_eps(vec2 v, float val);
+ CGLM_INLINE bool glm_vec2_eq_all(vec2 v);
+ CGLM_INLINE bool glm_vec2_eqv(vec2 a, vec2 b);
+ CGLM_INLINE bool glm_vec2_eqv_eps(vec2 a, vec2 b);
+ CGLM_INLINE float glm_vec2_max(vec2 v);
+ CGLM_INLINE float glm_vec2_min(vec2 v);
+ CGLM_INLINE bool glm_vec2_isnan(vec2 v);
+ CGLM_INLINE bool glm_vec2_isinf(vec2 v);
+ CGLM_INLINE bool glm_vec2_isvalid(vec2 v);
+ CGLM_INLINE void glm_vec2_sign(vec2 v, vec2 dest);
+ CGLM_INLINE void glm_vec2_abs(vec2 v, vec2 dest);
+ CGLM_INLINE void glm_vec2_fract(vec2 v, vec2 dest);
+ CGLM_INLINE void glm_vec2_floor(vec2 v, vec2 dest);
+ CGLM_INLINE float glm_vec2_mods(vec2 v, float s, vec2 dest);
+ CGLM_INLINE float glm_vec2_steps(float edge, vec2 v, vec2 dest);
+ CGLM_INLINE void glm_vec2_stepr(vec2 edge, float v, vec2 dest);
+ CGLM_INLINE void glm_vec2_sqrt(vec2 v, vec2 dest);
+ CGLM_INLINE void glm_vec2_complex_mul(vec2 a, vec2 b, vec2 dest)
+ CGLM_INLINE void glm_vec2_complex_div(vec2 a, vec2 b, vec2 dest)
+ CGLM_INLINE void glm_vec2_complex_conjugate(vec2 a, vec2 dest)
+ */
+
+#ifndef cglm_vec2_ext_h
+#define cglm_vec2_ext_h
+
+#include "common.h"
+#include "util.h"
+
+/*!
+ * @brief fill a vector with specified value
+ *
+ * @param[out] v dest
+ * @param[in] val value
+ */
+CGLM_INLINE
+void
+glm_vec2_fill(vec2 v, float val) {
+ v[0] = v[1] = val;
+}
+
+/*!
+ * @brief check if vector is equal to value (without epsilon)
+ *
+ * @param[in] v vector
+ * @param[in] val value
+ */
+CGLM_INLINE
+bool
+glm_vec2_eq(vec2 v, float val) {
+ return v[0] == val && v[0] == v[1];
+}
+
+/*!
+ * @brief check if vector is equal to value (with epsilon)
+ *
+ * @param[in] v vector
+ * @param[in] val value
+ */
+CGLM_INLINE
+bool
+glm_vec2_eq_eps(vec2 v, float val) {
+ return fabsf(v[0] - val) <= GLM_FLT_EPSILON
+ && fabsf(v[1] - val) <= GLM_FLT_EPSILON;
+}
+
+/*!
+ * @brief check if vector members are equal (without epsilon)
+ *
+ * @param[in] v vector
+ */
+CGLM_INLINE
+bool
+glm_vec2_eq_all(vec2 v) {
+ return glm_vec2_eq_eps(v, v[0]);
+}
+
+/*!
+ * @brief check if vector is equal to another (without epsilon)
+ *
+ * @param[in] a vector
+ * @param[in] b vector
+ */
+CGLM_INLINE
+bool
+glm_vec2_eqv(vec2 a, vec2 b) {
+ return a[0] == b[0] && a[1] == b[1];
+}
+
+/*!
+ * @brief check if vector is equal to another (with epsilon)
+ *
+ * @param[in] a vector
+ * @param[in] b vector
+ */
+CGLM_INLINE
+bool
+glm_vec2_eqv_eps(vec2 a, vec2 b) {
+ return fabsf(a[0] - b[0]) <= GLM_FLT_EPSILON
+ && fabsf(a[1] - b[1]) <= GLM_FLT_EPSILON;
+}
+
+/*!
+ * @brief max value of vector
+ *
+ * @param[in] v vector
+ */
+CGLM_INLINE
+float
+glm_vec2_max(vec2 v) {
+ return glm_max(v[0], v[1]);
+}
+
+/*!
+ * @brief min value of vector
+ *
+ * @param[in] v vector
+ */
+CGLM_INLINE
+float
+glm_vec2_min(vec2 v) {
+ return glm_min(v[0], v[1]);
+}
+
+/*!
+ * @brief check if one of items is NaN (not a number)
+ * you should only use this in DEBUG mode or very critical asserts
+ *
+ * @param[in] v vector
+ */
+CGLM_INLINE
+bool
+glm_vec2_isnan(vec2 v) {
+#ifndef CGLM_FAST_MATH
+ return isnan(v[0]) || isnan(v[1]);
+#else
+ return false;
+#endif
+}
+
+/*!
+ * @brief check if one of items is INFINITY
+ * you should only use this in DEBUG mode or very critical asserts
+ *
+ * @param[in] v vector
+ */
+CGLM_INLINE
+bool
+glm_vec2_isinf(vec2 v) {
+#ifndef CGLM_FAST_MATH
+ return isinf(v[0]) || isinf(v[1]);
+#else
+ return false;
+#endif
+}
+
+/*!
+ * @brief check if all items are valid number
+ * you should only use this in DEBUG mode or very critical asserts
+ *
+ * @param[in] v vector
+ */
+CGLM_INLINE
+bool
+glm_vec2_isvalid(vec2 v) {
+ return !glm_vec2_isnan(v) && !glm_vec2_isinf(v);
+}
+
+/*!
+ * @brief get sign of 32 bit float as +1, -1, 0
+ *
+ * Important: It returns 0 for zero/NaN input
+ *
+ * @param v vector
+ */
+CGLM_INLINE
+void
+glm_vec2_sign(vec2 v, vec2 dest) {
+ dest[0] = glm_signf(v[0]);
+ dest[1] = glm_signf(v[1]);
+}
+
+/*!
+ * @brief absolute value of v
+ *
+ * @param[in] v vector
+ * @param[out] dest destination
+ */
+CGLM_INLINE
+void
+glm_vec2_abs(vec2 v, vec2 dest) {
+ dest[0] = fabsf(v[0]);
+ dest[1] = fabsf(v[1]);
+}
+
+/*!
+ * @brief fractional part of each vector item
+ *
+ * @param[in] v vector
+ * @param[out] dest destination vector
+ */
+CGLM_INLINE
+void
+glm_vec2_fract(vec2 v, vec2 dest) {
+ dest[0] = fminf(v[0] - floorf(v[0]), 0.999999940395355224609375f);
+ dest[1] = fminf(v[1] - floorf(v[1]), 0.999999940395355224609375f);
+}
+
+/*!
+ * @brief floor of each vector item
+ *
+ * @param[in] v vector
+ * @param[out] dest destination vector
+ */
+CGLM_INLINE
+void
+glm_vec2_floor(vec2 v, vec2 dest) {
+ dest[0] = floorf(v[0]);
+ dest[1] = floorf(v[1]);
+}
+
+/*!
+ * @brief mod of each vector item, result is written to dest (dest = v % s)
+ *
+ * @param[in] v vector
+ * @param[in] s scalar
+ * @param[out] dest destination vector
+ */
+CGLM_INLINE
+void
+glm_vec2_mods(vec2 v, float s, vec2 dest) {
+ dest[0] = fmodf(v[0], s);
+ dest[1] = fmodf(v[1], s);
+}
+
+/*!
+ * @brief square root of each vector item
+ *
+ * @param[in] v vector
+ * @param[out] dest destination vector
+ */
+CGLM_INLINE
+void
+glm_vec2_sqrt(vec2 v, vec2 dest) {
+ dest[0] = sqrtf(v[0]);
+ dest[1] = sqrtf(v[1]);
+}
+
+/*!
+ * @brief treat vectors as complex numbers and multiply them as such.
+ *
+ * @param[in] a left number
+ * @param[in] b right number
+ * @param[out] dest destination number
+ */
+CGLM_INLINE
+void
+glm_vec2_complex_mul(vec2 a, vec2 b, vec2 dest) {
+ float tr, ti;
+ tr = a[0] * b[0] - a[1] * b[1];
+ ti = a[0] * b[1] + a[1] * b[0];
+ dest[0] = tr;
+ dest[1] = ti;
+}
+
+/*!
+ * @brief threshold each vector item with scalar
+ * condition is: (x[i] < edge) ? 0.0 : 1.0
+ *
+ * @param[in] edge threshold
+ * @param[in] x vector to test against threshold
+ * @param[out] dest destination
+ */
+CGLM_INLINE
+void
+glm_vec2_steps(float edge, vec2 x, vec2 dest) {
+ dest[0] = glm_step(edge, x[0]);
+ dest[1] = glm_step(edge, x[1]);
+}
+
+/*!
+ * @brief threshold a value with *vector* as the threshold
+ * condition is: (x < edge[i]) ? 0.0 : 1.0
+ *
+ * @param[in] edge threshold vector
+ * @param[in] x value to test against threshold
+ * @param[out] dest destination
+ */
+CGLM_INLINE
+void
+glm_vec2_stepr(vec2 edge, float x, vec2 dest) {
+ dest[0] = glm_step(edge[0], x);
+ dest[1] = glm_step(edge[1], x);
+}
+
+/*!
+ * @brief treat vectors as complex numbers and divide them as such.
+ *
+ * @param[in] a left number (numerator)
+ * @param[in] b right number (denominator)
+ * @param[out] dest destination number
+ */
+CGLM_INLINE
+void
+glm_vec2_complex_div(vec2 a, vec2 b, vec2 dest) {
+ float tr, ti;
+ float const ibnorm2 = 1.0f / (b[0] * b[0] + b[1] * b[1]);
+ tr = ibnorm2 * (a[0] * b[0] + a[1] * b[1]);
+ ti = ibnorm2 * (a[1] * b[0] - a[0] * b[1]);
+ dest[0] = tr;
+ dest[1] = ti;
+}
+
+/*!
+ * @brief treat the vector as a complex number and conjugate it as such.
+ *
+ * @param[in] a the number
+ * @param[out] dest destination number
+ */
+CGLM_INLINE
+void
+glm_vec2_complex_conjugate(vec2 a, vec2 dest) {
+ dest[0] = a[0];
+ dest[1] = -a[1];
+}
+
+#endif /* cglm_vec2_ext_h */