path: root/src/ungrateful.h

#if !defined(UNGRATEFUL_H)
#   define UNGRATEFUL_H

/*
    Ungrateful - standard library for game development.

    LICENSE:

    Copyright (C) 2025 Bogdan Masyutin (bonmas14)

    This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any damages
    arising from the use of this software.

    Permission is granted to anyone to use this software for any purpose,
    including commercial applications, and to alter it and redistribute it
    freely, subject to the following restrictions:

      1. The origin of this software must not be misrepresented; you must not
         claim that you wrote the original software. If you use this software
         in a product, an acknowledgment in the product documentation would be
         appreciated but is not required.
      2. Altered source versions must be plainly marked as such, and must not be
         misrepresented as being the original software.
      3. This notice may not be removed or altered from any source distribution.

    Bogdan Masyutin - bonmas14@gmail.com
*/

#if defined(__clang__) || defined(__GNUC__)
#   define CLANG_COMPILER
#   define __TRAP() __builtin_trap()
#elif _MSC_VER >= 1939
#   define MSVC_COMPILER
#   include <intrin.h>
#   define __TRAP() __debugbreak()
#else
#   error "Unknown compiler"
#endif

#if defined(__cplusplus)
#   define CLITERAL(type)      type
#else
#   define CLITERAL(type)      (type)
#endif

#if defined(_WIN32)
#   define OS_WINDOWS
#elif defined(__linux__)
#   define OS_LINUX
#else
#   error "unknown platform!"
#endif

#define UN_TEMP_SIZE UN_MB(50)

#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdarg.h>
#include <limits.h>
#include <assert.h>
#include <math.h>
#include <wchar.h>

#define UNUSED(x) (void)(x)

#define UN_KB(s) ((u64)(s) * 1024LL)
#define UN_MB(s) (UN_KB(s) * 1024LL)
#define UN_GB(s) (UN_MB(s) * 1024LL)

#define UN_MAX(a, b) (a) > (b) ? (a) : (b)
#define UN_MIN(a, b) (a) < (b) ? (a) : (b)

#define UN_TODO(msg) assert((msg, false))
#define UN_CSTR (u8*)
#define UN_STR(cstr) un_string_from_cstring(UN_CSTR cstr)
#define CSTR    (char*)

#define UN_CLEAR(var) un_memory_set((void*)&var, 0, sizeof(var))

#if defined(__cplusplus)
extern "C" {
#endif

typedef uint64_t u64;
typedef uint32_t u32;
typedef uint16_t u16;
typedef uint8_t  u8;

typedef int64_t s64;
typedef int32_t s32;
typedef int16_t s16;
typedef int8_t  s8;

typedef int8_t b32;
typedef int8_t b8;

typedef float  f32;
typedef double f64;

typedef wchar_t wchar;

#if !defined(PI)
#   define PI 3.14159265358979323846f
#endif

#if !defined(EPSILON)
#   define EPSILON 0.000001f
#endif

#if !defined(DEG2RAD)
#   define DEG2RAD (PI/180.0f)
#endif

#if !defined(RAD2DEG)
#   define RAD2DEG (180.0f/PI)
#endif

#if defined(UN_DOUBLE_PRECISION)
    typedef double real;
#else
    typedef float real;
#endif // UN_DOUBLE_PRECISION

#if !defined(PI_D)
#   define PI_D 3.14159265358979323846
#endif

#if !defined(EPSILON_D)
#   define EPSILON_D 0.000000000000001
#endif

#if !defined(DEG2RAD_D)
#   define DEG2RAD_D (PI/180.0)
#endif
#if !defined(RAD2DEG_D)
#   define RAD2DEG_D (180.0/PI)
#endif


#define un_vec_unwrap2(vec) vec[0], vec[1]
#define un_vec_unwrap3(vec) vec[0], vec[1], vec[2]
#define un_vec_unwrap4(vec) vec[0], vec[1], vec[2], vec[3]

/* ---- Memory Allocators API ---- */

typedef enum {
    UN_ALLOC_MSG_ALLOCATE,
    UN_ALLOC_MSG_FREE,
    UN_ALLOC_MSG_SELF_DELETE,
} Allocator_Message;

#define ALLOCATOR_PROC_SIGNATURE(name)\
    void *name(void *p, u64 size, Allocator_Message message, void *data)

typedef ALLOCATOR_PROC_SIGNATURE(Allocator_Proc);

typedef struct {
    Allocator_Proc *proc;
    void           *data;
} Allocator;

// extern Allocator un_allocator_create_heap(s64 chunk_size); /* ... for large things. */
extern Allocator un_allocator_create_arena(u64 initial_size); /* Grouping allocator, that will recursively grow. */
extern Allocator un_allocator_create_wrapper(Allocator target); /* Allocator for debug purposes. */

extern Allocator un_allocator_get_standard(void);
extern Allocator un_allocator_get_temporary(void);

extern void *un_memory_alloc(u64 size, Allocator alloc);
extern void  un_memory_free(void *ptr, Allocator alloc);
extern void  un_memory_destroy(Allocator *alloc);

extern void un_memory_set(u8 *dest, u8 value, u64 size);
extern void un_memory_copy(u8 *dest, u8 *src, u64 size);
extern void un_memory_move(u8 *dest, u8 *src, u64 size);
extern s32  un_memory_compare(u8 *left, u8 *right, u64 size); /* checks for every byte in arrays for condition: if left is bigger that right. */

/* ---- Generic list structure ---- */

#define UN_LIST_STANDARD_CAPACITY UN_KB(1)

typedef struct {
    u64 count;
    u64 capacity;
    u64 element_size;
    Allocator alloc;
    void *data;
} List;

extern List un_list_create(u64 start_capacity, u64 element_size, Allocator alloc);
extern void un_list_destroy(List *list, b32 delete_allocator);

extern List  un_list_clone(List *list, Allocator alloc);
extern b32   un_list_append(List *list, void *data); /* Returns true if succeed. */
extern void *un_list_get(List *list, u64 index);
extern void  un_list_remove(List *list, u64 index);

/* ---- no-wide string API ---- */

typedef struct {
    u64 size;
    u8 *data;
} String;

extern u64    un_string_get_length(u8 *cstring);

extern String un_string_from_cstring(u8* cstring);
extern u8*    un_string_to_cstring(String string, Allocator alloc);

extern String un_string_copy(String source, Allocator alloc);
extern s32    un_string_compare(String left, String right);
extern String un_string_concat(String left, String right, Allocator alloc);

extern String un_string_swap(String input, u8 from, u8 to, Allocator alloc);
extern List   un_string_split(String input, String pattern, Allocator alloc);
extern String un_string_join(List string_list, String separator, Allocator alloc);

extern String un_string_substring(String input, u64 start, u64 max_size);

extern s64    un_string_index_of(String input, u8 value, u64 skip_count);
extern s64    un_string_index_of_last(String input, u8 value);

/* Simplest formatter, supports:
 *
 * %% - %
 * %c - char (internally u32)
 * %u - u64
 * %d - s64
 * %s - String
 * */
extern String un_string_format(Allocator alloc, String buffer, ...);
extern String un_string_vformat(Allocator alloc, String buffer, va_list args);

/* ---- wide strings API ---- */

extern wchar* un_wstring_from_string(String utf8_string, Allocator alloc);
extern wchar* un_wstring_from_cstring(u8 *utf8_string, Allocator alloc);

/* ---- math, and vecmath ---- */

#if defined(UN_DOUBLE_PRECISION)
#define un_m_lerpr un_m_lerpd
#else
#define un_m_lerpr un_m_lerpf
#endif

f32  un_m_lerpf(f32 a, f32 b, f32 t);
f64  un_m_lerpd(f64 a, f64 b, f64 t);

/* 2d f32 */
extern void un_m_add2f(f32 *v, f32 *a, f32 *b);
extern void un_m_sub2f(f32 *v, f32 *a, f32 *b);
extern void un_m_add_scalar2f(f32 *v, f32 *a, f32 scalar);
extern void un_m_sub_scalar2f(f32 *v, f32 *a, f32 scalar);
extern void un_m_mul_scalar2f(f32 *v, f32 *a, f32 scalar);
extern void un_m_div_scalar2f(f32 *v, f32 *a, f32 scalar);

extern void un_m_dot2f(f32 *v, f32 *a, f32 *b);
extern void un_m_hadamard2f(f32 *v, f32 *a, f32 *b);
extern void un_m_project2f(f32 *v, f32 *a, f32 *onto);
extern void un_m_reflect2f(f32 *v, f32 *a, f32 *normal);
extern void un_m_cross2f(f32 *v, f32 *a);

extern void un_m_normalize2f(f32 *v, f32 *a);
extern void un_m_magnitude2f(f32 *v, f32 *a);
extern void un_m_magnitude_sqr2f(f32 *v, f32 *a);
extern void un_m_distance2f(f32 *v, f32 *a, f32 *b);
extern void un_m_distance_sqr2f(f32 *v, f32 *a, f32 *b);

/* 3d f32 */
extern void un_m_add3f(f32 *v, f32 *a, f32 *b);
extern void un_m_sub3f(f32 *v, f32 *a, f32 *b);
extern void un_m_add_scalar3f(f32 *v, f32 *a, f32 scalar);
extern void un_m_sub_scalar3f(f32 *v, f32 *a, f32 scalar);
extern void un_m_mul_scalar3f(f32 *v, f32 *a, f32 scalar);
extern void un_m_div_scalar3f(f32 *v, f32 *a, f32 scalar);

extern void un_m_dot3f(f32 *v, f32 *a, f32 *b);
extern void un_m_hadamard3f(f32 *v, f32 *a, f32 *b);
extern void un_m_project3f(f32 *v, f32 *a, f32 *onto);
extern void un_m_reflect3f(f32 *v, f32 *a, f32 *normal);
extern void un_m_cross3f(f32 *v, f32 *a, f32 *b);

extern void un_m_normalize3f(f32 *v, f32 *a);
extern void un_m_magnitude3f(f32 *v, f32 *a);
extern void un_m_magnitude_sqr3f(f32 *v, f32 *a);
extern void un_m_distance3f(f32 *v, f32 *a, f32 *b);
extern void un_m_distance_sqr3f(f32 *v, f32 *a, f32 *b);

/* 4d f32 */
extern void un_m_add4f(f32 *v, f32 *a, f32 *b);
extern void un_m_sub4f(f32 *v, f32 *a, f32 *b);
extern void un_m_add_scalar4f(f32 *v, f32 *a, f32 scalar);
extern void un_m_sub_scalar4f(f32 *v, f32 *a, f32 scalar);
extern void un_m_mul_scalar4f(f32 *v, f32 *a, f32 scalar);
extern void un_m_div_scalar4f(f32 *v, f32 *a, f32 scalar);

extern void un_m_dot4f(f32 *v, f32 *a, f32 *b);
extern void un_m_hadamard4f(f32 *v, f32 *a, f32 *b);
extern void un_m_project4f(f32 *v, f32 *a, f32 *onto);
extern void un_m_reflect4f(f32 *v, f32 *a, f32 *normal);

extern void un_m_normalize4f(f32 *v, f32 *a);
extern void un_m_magnitude4f(f32 *v, f32 *a);
extern void un_m_magnitude_sqr4f(f32 *v, f32 *a);
extern void un_m_distance4f(f32 *v, f32 *a, f32 *b);
extern void un_m_distance_sqr4f(f32 *v, f32 *a, f32 *b);


/* 2d f64 */
extern void un_m_add2d(f64 *v, f64 *a, f64 *b);
extern void un_m_sub2d(f64 *v, f64 *a, f64 *b);

extern void un_m_add_scalar2d(f64 *v, f64 *a, f64 scalar);
extern void un_m_sub_scalar2d(f64 *v, f64 *a, f64 scalar);
extern void un_m_mul_scalar2d(f64 *v, f64 *a, f64 scalar);
extern void un_m_div_scalar2d(f64 *v, f64 *a, f64 scalar);

extern void un_m_dot2d(f64 *v, f64 *a, f64 *b);
extern void un_m_hadamard2d(f64 *v, f64 *a, f64 *b);
extern void un_m_project2d(f64 *v, f64 *a, f64 *onto);
extern void un_m_reflect2d(f64 *v, f64 *a, f64 *normal);
extern void un_m_cross2d(f64 *v, f64 *a);

extern void un_m_normalize2d(f64 *v, f64 *a);
extern void un_m_magnitude2d(f64 *v, f64 *a);
extern void un_m_magnitude_sqr2d(f64 *v, f64 *a);
extern void un_m_distance2d(f64 *v, f64 *a, f64 *b);
extern void un_m_distance_sqr2d(f64 *v, f64 *a, f64 *b);

/* 3d f64 */
extern void un_m_add3d(f64 *v, f64 *a, f64 *b);
extern void un_m_sub3d(f64 *v, f64 *a, f64 *b);

extern void un_m_add_scalar3d(f64 *v, f64 *a, f64 scalar);
extern void un_m_sub_scalar3d(f64 *v, f64 *a, f64 scalar);
extern void un_m_mul_scalar3d(f64 *v, f64 *a, f64 scalar);
extern void un_m_div_scalar3d(f64 *v, f64 *a, f64 scalar);

extern void un_m_dot3d(f64 *v, f64 *a, f64 *b);
extern void un_m_hadamard3d(f64 *v, f64 *a, f64 *b);
extern void un_m_project3d(f64 *v, f64 *a, f64 *onto);
extern void un_m_reflect3d(f64 *v, f64 *a, f64 *normal);
extern void un_m_cross3d(f64 *v, f64 *a, f64 *b);

extern void un_m_normalize3d(f64 *v, f64 *a);
extern void un_m_magnitude3d(f64 *v, f64 *a);
extern void un_m_magnitude_sqr3d(f64 *v, f64 *a);
extern void un_m_distance3d(f64 *v, f64 *a, f64 *b);
extern void un_m_distance_sqr3d(f64 *v, f64 *a, f64 *b);

/* 4d f64 */
extern void un_m_add4d(f64 *v, f64 *a, f64 *b);
extern void un_m_sub4d(f64 *v, f64 *a, f64 *b);

extern void un_m_add_scalar4d(f64 *v, f64 *a, f64 scalar);
extern void un_m_sub_scalar4d(f64 *v, f64 *a, f64 scalar);
extern void un_m_mul_scalar4d(f64 *v, f64 *a, f64 scalar);
extern void un_m_div_scalar4d(f64 *v, f64 *a, f64 scalar);

extern void un_m_dot4d(f64 *v, f64 *a, f64 *b);
extern void un_m_hadamard4d(f64 *v, f64 *a, f64 *b);
extern void un_m_project4d(f64 *v, f64 *a, f64 *onto);
extern void un_m_reflect4d(f64 *v, f64 *a, f64 *normal);

extern void un_m_normalize4d(f64 *v, f64 *a);
extern void un_m_magnitude4d(f64 *v, f64 *a);
extern void un_m_magnitude_sqr4d(f64 *v, f64 *a);
extern void un_m_distance4d(f64 *v, f64 *a, f64 *b);
extern void un_m_distance_sqr4d(f64 *v, f64 *a, f64 *b);

#if defined(UN_DOUBLE_PRECISION) 

/* 2d real */
#define un_m_add2r un_m_add2d
#define un_m_sub2r un_m_sub2d

#define un_m_add_scalar2r un_m_add_scalar2d
#define un_m_sub_scalar2r un_m_sub_scalar2d
#define un_m_mul_scalar2r un_m_mul_scalar2d
#define un_m_div_scalar2r un_m_div_scalar2d

#define un_m_dot2r un_m_dot2d
#define un_m_hadamard2r un_m_hadamard2d
#define un_m_project2r un_m_project2d
#define un_m_reflect2r un_m_reflect2d
#define un_m_cross2r un_m_cross2d

#define un_m_normalize2r un_m_normalize2d
#define un_m_magnitude2r un_m_magnitude2d
#define un_m_magnitude_sqr2r un_m_magnitude_sqr2d
#define un_m_distance2r un_m_distance2d
#define un_m_distance_sqr2r un_m_distance_sqr2d

/* 3d real */
#define un_m_add3r un_m_add3d
#define un_m_sub3r un_m_sub3d

#define un_m_add_scalar3r un_m_add_scalar3d
#define un_m_sub_scalar3r un_m_sub_scalar3d
#define un_m_mul_scalar3r un_m_mul_scalar3d
#define un_m_div_scalar3r un_m_div_scalar3d

#define un_m_dot3r un_m_dot3d
#define un_m_hadamard3r un_m_hadamard3d
#define un_m_project3r un_m_project3d
#define un_m_reflect3r un_m_reflect3d
#define un_m_cross3r un_m_cross3d

#define un_m_normalize3r un_m_normalize3d
#define un_m_magnitude3r un_m_magnitude3d
#define un_m_magnitude_sqr3r un_m_magnitude_sqr3d
#define un_m_distance3r un_m_distance3d
#define un_m_distance_sqr3r un_m_distance_sqr3d

/* 4d real */
#define un_m_add4r un_m_add4d
#define un_m_sub4r un_m_sub4d

#define un_m_add_scalar4r un_m_add_scalar4d
#define un_m_sub_scalar4r un_m_sub_scalar4d
#define un_m_mul_scalar4r un_m_mul_scalar4d
#define un_m_div_scalar4r un_m_div_scalar4d

#define un_m_dot4r un_m_dot4d
#define un_m_hadamard4r un_m_hadamard4d
#define un_m_project4r un_m_project4d
#define un_m_reflect4r un_m_reflect4d

#define un_m_normalize4r un_m_normalize4d
#define un_m_magnitude4r un_m_magnitude4d
#define un_m_magnitude_sqr4r un_m_magnitude_sqr4d
#define un_m_distance4r un_m_distance4d
#define un_m_distance_sqr4r un_m_distance_sqr4d

#else

/* 2d real */
#define un_m_add2r un_m_add2f
#define un_m_sub2r un_m_sub2f

#define un_m_add_scalar2r un_m_add_scalar2f
#define un_m_sub_scalar2r un_m_sub_scalar2f
#define un_m_mul_scalar2r un_m_mul_scalar2f
#define un_m_div_scalar2r un_m_div_scalar2f

#define un_m_dot2r un_m_dot2f
#define un_m_hadamard2r un_m_hadamard2f
#define un_m_project2r un_m_project2f
#define un_m_reflect2r un_m_reflect2f
#define un_m_cross2r un_m_cross2f

#define un_m_normalize2r un_m_normalize2f
#define un_m_magnitude2r un_m_magnitude2f
#define un_m_magnitude_sqr2r un_m_magnitude_sqr2f
#define un_m_distance2r un_m_distance2f
#define un_m_distance_sqr2r un_m_distance_sqr2f

/* 3d real */
#define un_m_add3r un_m_add3f
#define un_m_sub3r un_m_sub3f

#define un_m_add_scalar3r un_m_add_scalar3f
#define un_m_sub_scalar3r un_m_sub_scalar3f
#define un_m_mul_scalar3r un_m_mul_scalar3f
#define un_m_div_scalar3r un_m_div_scalar3f

#define un_m_dot3r un_m_dot3f
#define un_m_hadamard3r un_m_hadamard3f
#define un_m_project3r un_m_project3f
#define un_m_reflect3r un_m_reflect3f
#define un_m_cross3r un_m_cross3f

#define un_m_normalize3r un_m_normalize3f
#define un_m_magnitude3r un_m_magnitude3f
#define un_m_magnitude_sqr3r un_m_magnitude_sqr3f
#define un_m_distance3r un_m_distance3f
#define un_m_distance_sqr3r un_m_distance_sqr3f

/* 4d real */
#define un_m_add4r un_m_add4f
#define un_m_sub4r un_m_sub4f

#define un_m_add_scalar4r un_m_add_scalar4f
#define un_m_sub_scalar4r un_m_sub_scalar4f
#define un_m_mul_scalar4r un_m_mul_scalar4f
#define un_m_div_scalar4r un_m_div_scalar4f

#define un_m_dot4r un_m_dot4f
#define un_m_hadamard4r un_m_hadamard4f
#define un_m_project4r un_m_project4f
#define un_m_reflect4r un_m_reflect4f

#define un_m_normalize4r un_m_normalize4f
#define un_m_magnitude4r un_m_magnitude4f
#define un_m_magnitude_sqr4r un_m_magnitude_sqr4f
#define un_m_distance4r un_m_distance4f
#define un_m_distance_sqr4r un_m_distance_sqr4f

#endif // UN_DOUBLE_PRECISION

/* ---- complex ---- */

#define un_m_complex_addf un_m_add2f
#define un_m_complex_subf un_m_sub2f
extern void un_m_complex_divf(f32 *v, f32 *a, f32 *b);
extern void un_m_complex_mulf(f32 *v, f32 *a, f32 *b);

#define un_m_complex_addd un_m_add2d
#define un_m_complex_subd un_m_sub2d
extern void un_m_complex_divd(f64 *v, f64 *a, f64 *b);
extern void un_m_complex_muld(f64 *v, f64 *a, f64 *b);

#define un_m_complex_magnitudef un_m_magnitude2f
#define un_m_complex_magnituded un_m_magnitude2d

#if defined(UN_DOUBLE_PRECISION)
#define un_m_complex_addr       un_m_complex_addd
#define un_m_complex_subr       un_m_complex_subd
#define un_m_complex_divr       un_m_complex_divd
#define un_m_complex_mulr       un_m_complex_muld
#define un_m_complex_magnituder un_m_complex_magnituded
#else
#define un_m_complex_addr       un_m_complex_addf
#define un_m_complex_subr       un_m_complex_subf
#define un_m_complex_divr       un_m_complex_divf
#define un_m_complex_mulr       un_m_complex_mulf
#define un_m_complex_magnituder un_m_complex_magnitudef
#endif // UN_DOUBLE_PRECISION

/* ---- splines ---- */

void un_m_bezierf(f32 *v, f32 a, f32 q0, f32 q1, f32 b, f32 t);
void un_m_bezier2f(f32 *v, f32 *a, f32 *q0, f32 *q1, f32 *b, f32 t);
void un_m_bezier3f(f32 *v, f32 *a, f32 *q0, f32 *q1, f32 *b, f32 t);
void un_m_bezier4f(f32 *v, f32 *a, f32 *q0, f32 *q1, f32 *b, f32 t);

void un_m_bezierd(f64 *v, f64 a, f64 q0, f64 q1, f64 b, f64 t);
void un_m_bezier2d(f64 *v, f64 *a, f64 *q0, f64 *q1, f64 *b, f64 t);
void un_m_bezier3d(f64 *v, f64 *a, f64 *q0, f64 *q1, f64 *b, f64 t);
void un_m_bezier4d(f64 *v, f64 *a, f64 *q0, f64 *q1, f64 *b, f64 t);

#if defined(UN_DOUBLE_PRECISION)
#define un_m_bezierr  un_m_bezierd
#define un_m_bezier2r un_m_bezier2d
#define un_m_bezier3r un_m_bezier3d
#define un_m_bezier4r un_m_bezier4d
#else
#define un_m_bezierr  un_m_bezierf
#define un_m_bezier2r un_m_bezier2f
#define un_m_bezier3r un_m_bezier3f
#define un_m_bezier4r un_m_bezier4f
#endif // UN_DOUBLE_PRECISION

/* ---- easing ---- */

extern f32  un_m_ease_isinef(f32 t);
extern f32  un_m_ease_iosinef(f32 t);
extern f32  un_m_ease_osinef(f32 t);
extern f32  un_m_ease_iquadf(f32 t);
extern f32  un_m_ease_ioquadf(f32 t);
extern f32  un_m_ease_oquadf(f32 t);

extern f64  un_m_ease_isined(f64 t);
extern f64  un_m_ease_iosined(f64 t);
extern f64  un_m_ease_osined(f64 t);
extern f64  un_m_ease_iquadd(f64 t);
extern f64  un_m_ease_ioquadd(f64 t);
extern f64  un_m_ease_oquadd(f64 t);

#if defined(UN_DOUBLE_PRECISION)
#define un_m_ease_isiner  un_m_ease_isined
#define un_m_ease_iosiner un_m_ease_iosined
#define un_m_ease_osiner  un_m_ease_osined
#define un_m_ease_iquadr  un_m_ease_iquadd
#define un_m_ease_ioquadr un_m_ease_ioquadd
#define un_m_ease_oquadr  un_m_ease_oquadd
#else
#define un_m_ease_isiner  un_m_ease_isinef
#define un_m_ease_iosiner un_m_ease_iosinef
#define un_m_ease_osiner  un_m_ease_osinef
#define un_m_ease_iquadr  un_m_ease_iquadf
#define un_m_ease_ioquadr un_m_ease_ioquadf
#define un_m_ease_oquadr  un_m_ease_oquadf
#endif // UN_DOUBLE_PRECISION

/* --- matrix ---- 
 * Convention of matrices!
 * column-major matrices and all matrices are 4x4.
 */

#define UN_MATRIX_SIZE (16)
#define UN_MATRIX_STRIPE (4)

extern void un_m_mat_mulf(f32 *v, f32 *left, f32 *right);
extern void un_m_mat_identityf(f32 *v);

#if defined(__cplusplus)
}
#endif

#endif // UNGRATEFUL_H