luboslenco
169 lines
4.6 KiB
C
169 lines
4.6 KiB
C
#pragma once
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#include "iron_array.h"
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#include "iron_global.h"
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#include <stdint.h>
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#define IRON_PI 3.14159265358979323846
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#define IRON_TAU 6.283185307
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typedef struct vec2 {
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float x;
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float y;
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} vec2_t;
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typedef struct vec3 {
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float x;
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float y;
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float z;
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} vec3_t;
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typedef struct vec4 {
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float x;
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float y;
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float z;
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float w;
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} vec4_t;
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typedef struct quat {
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float x;
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float y;
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float z;
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float w;
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} quat_t;
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typedef union mat3 {
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float m[3 * 3];
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struct {
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float m00;
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float m01;
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float m02;
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float m10;
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float m11;
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float m12;
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float m20;
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float m21;
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float m22;
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};
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} mat3_t;
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typedef union mat4 {
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float m[4 * 4];
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struct {
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float m00;
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float m01;
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float m02;
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float m03;
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float m10;
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float m11;
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float m12;
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float m13;
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float m20;
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float m21;
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float m22;
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float m23;
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float m30;
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float m31;
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float m32;
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float m33;
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};
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} mat4_t;
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void iron_color_components(uint32_t color, float *red, float *green, float *blue, float *alpha);
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void iron_random_init(int64_t seed);
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int64_t iron_random_get(void);
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int64_t iron_random_get_max(int64_t max);
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int64_t iron_random_get_in(int64_t min, int64_t max);
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float vec2_len(vec2_t v);
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vec2_t vec2_set_len(vec2_t v, float length);
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vec2_t vec2_mult(vec2_t a, float f);
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vec2_t vec2_add(vec2_t a, vec2_t b);
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vec2_t vec2_sub(vec2_t a, vec2_t b);
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float vec2_cross(vec2_t a, vec2_t b);
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vec2_t vec2_norm(vec2_t v);
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float vec2_dot(vec2_t a, vec2_t b);
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vec2_t vec2_nan();
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bool vec2_isnan(vec2_t v);
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vec4_t vec4_cross(vec4_t a, vec4_t b);
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vec4_t vec4_add(vec4_t a, vec4_t b);
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vec4_t vec4_fadd(vec4_t a, float x, float y, float z, float w);
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vec4_t vec4_norm(vec4_t a);
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vec4_t vec4_mult(vec4_t v, float f);
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float vec4_dot(vec4_t a, vec4_t b);
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vec4_t vec4_apply_proj(vec4_t a, mat4_t m);
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vec4_t vec4_apply_mat4(vec4_t a, mat4_t m);
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vec4_t vec4_apply_axis_angle(vec4_t a, vec4_t axis, float angle);
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vec4_t vec4_apply_quat(vec4_t a, quat_t q);
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bool vec4_equals(vec4_t a, vec4_t b);
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bool vec4_almost_equals(vec4_t a, vec4_t b, float prec);
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float vec4_len(vec4_t a);
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vec4_t vec4_sub(vec4_t a, vec4_t b);
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float vec4_dist(vec4_t v1, vec4_t v2);
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float vec4_fdist(float v1x, float v1y, float v1z, float v2x, float v2y, float v2z);
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vec4_t vec4_reflect(vec4_t a, vec4_t n);
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vec4_t vec4_clamp(vec4_t a, float min, float max);
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vec4_t vec4_x_axis();
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vec4_t vec4_y_axis();
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vec4_t vec4_z_axis();
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vec4_t vec4_nan();
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bool vec4_isnan(vec4_t v);
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quat_t quat_from_axis_angle(vec4_t axis, float angle);
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quat_t quat_from_mat(mat4_t m);
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quat_t quat_from_rot_mat(mat4_t m);
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quat_t quat_mult(quat_t a, quat_t b);
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quat_t quat_norm(quat_t q);
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vec4_t quat_get_euler(quat_t q);
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quat_t quat_from_euler(float x, float y, float z);
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float quat_dot(quat_t a, quat_t b);
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quat_t quat_from_to(vec4_t v0, vec4_t v1);
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quat_t quat_inv(quat_t q);
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quat_t quat_slerp(quat_t a, quat_t b, float t);
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mat3_t mat3_identity();
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mat3_t mat3_translation(float x, float y);
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mat3_t mat3_rotation(float alpha);
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mat3_t mat3_scale(mat3_t m, vec4_t v);
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mat3_t mat3_set_from4(mat4_t m4);
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mat3_t mat3_multmat(mat3_t a, mat3_t b);
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mat3_t mat3_transpose(mat3_t m);
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mat3_t mat3_nan();
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bool mat3_isnan(mat3_t m);
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typedef struct mat4_decomposed {
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vec4_t loc;
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quat_t rot;
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vec4_t scl;
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} mat4_decomposed_t;
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mat4_t mat4_identity();
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mat4_t mat4_from_f32_array(f32_array_t *a, int offset);
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mat4_t mat4_persp(float fov_y, float aspect, float zn, float zf);
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mat4_t mat4_ortho(float left, float right, float bottom, float top, float znear, float zfar);
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mat4_t mat4_rot_z(float alpha);
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mat4_t mat4_compose(vec4_t loc, quat_t rot, vec4_t scl);
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mat4_decomposed_t *mat4_decompose(mat4_t m);
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mat4_t mat4_set_loc(mat4_t m, vec4_t v);
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mat4_t mat4_from_quat(quat_t q);
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mat4_t mat4_translate(mat4_t m, float x, float y, float z);
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mat4_t mat4_scale(mat4_t m, vec4_t v);
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mat4_t mat4_mult_mat3x4(mat4_t a, mat4_t b);
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mat4_t mat4_mult_mat(mat4_t a, mat4_t b);
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mat4_t mat4_inv(mat4_t a);
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mat4_t mat4_transpose(mat4_t m);
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mat4_t mat4_transpose3(mat4_t m);
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vec4_t mat4_get_loc(mat4_t m);
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vec4_t mat4_get_scale(mat4_t m);
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mat4_t mat4_mult(mat4_t m, float s);
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mat4_t mat4_to_rot(mat4_t m);
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vec4_t mat4_right(mat4_t m);
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vec4_t mat4_look(mat4_t m);
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vec4_t mat4_up(mat4_t m);
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f32_array_t *mat4_to_f32_array(mat4_t m);
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float mat4_cofactor(float m0, float m1, float m2, float m3, float m4, float m5, float m6, float m7, float m8);
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float mat4_determinant(mat4_t m);
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mat4_t mat4_nan();
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bool mat4_isnan(mat4_t m);
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