Add vector artihmetic
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dqnt.h
484
dqnt.h
@ -19,6 +19,7 @@
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//
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////////////////////////////////////////////////////////////////////////////////
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#include "stdint.h"
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#include "math.h"
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#define LOCAL_PERSIST static
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#define FILE_SCOPE static
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@ -39,67 +40,115 @@ typedef float f32;
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#define DQNT_ARRAY_COUNT(array) (sizeof(array) / sizeof(array[0]))
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#define DQNT_ASSERT(expr) if (!(expr)) { (*((i32 *)0)) = 0; }
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#define DQNT_MATH_PI 3.14159265359f
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#define DQNT_MATH_ABS(x) (((x) < 0) ? (-(x)) : (x))
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#define DQNT_MATH_DEGREES_TO_RADIANS(x) ((x * (MATH_PI / 180.0f)))
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#define DQNT_MATH_RADIANS_TO_DEGREES(x) ((x * (180.0f / MATH_PI)))
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#define DQNT_MATH_MAX(a, b) ((a) < (b) ? (b) : (a))
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#define DQNT_MATH_MIN(a, b) ((a) < (b) ? (a) : (b))
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#define DQNT_MATH_SQUARED(x) ((x) * (x))
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#define DQNT_MATH_SQRT(x) (sqrtf(x))
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#define DQNT_PI 3.14159265359f
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#define DQNT_ABS(x) (((x) < 0) ? (-(x)) : (x))
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#define DQNT_DEGREES_TO_RADIANS(x) ((x * (MATH_PI / 180.0f)))
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#define DQNT_RADIANS_TO_DEGREES(x) ((x * (180.0f / MATH_PI)))
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#define DQNT_MAX(a, b) ((a) < (b) ? (b) : (a))
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#define DQNT_MIN(a, b) ((a) < (b) ? (a) : (b))
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#define DQNT_SQUARED(x) ((x) * (x))
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#define DQNT_SQRT(x) (sqrtf(x))
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////////////////////////////////////////////////////////////////////////////////
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// Vec2
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////////////////////////////////////////////////////////////////////////////////
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typedef union dqnt_v2 {
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typedef union DqntV2 {
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struct { f32 x, y; };
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struct { f32 w, h; };
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struct { f32 min, max; };
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f32 e[2];
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} dqnt_v2;
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} DqntV2;
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DQNT_FILE_SCOPE dqnt_v2 V2(f32 x, f32 y);
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// Create a 2d-vector using ints and typecast to floats
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DQNT_FILE_SCOPE dqnt_v2 V2i(i32 x, i32 y);
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// Create a vector using ints and typecast to floats
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DQNT_FILE_SCOPE DqntV2 dqnt_v2i(i32 x, i32 y);
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DQNT_FILE_SCOPE DqntV2 dqnt_v2 (f32 x, f32 y);
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DQNT_FILE_SCOPE DqntV2 dqnt_v2_add (DqntV2 a, DqntV2 b);
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DQNT_FILE_SCOPE DqntV2 dqnt_v2_sub (DqntV2 a, DqntV2 b);
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DQNT_FILE_SCOPE DqntV2 dqnt_v2_scale (DqntV2 a, f32 b);
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DQNT_FILE_SCOPE DqntV2 dqnt_v2_hadamard(DqntV2 a, DqntV2 b);
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DQNT_FILE_SCOPE f32 dqnt_v2_dot (DqntV2 a, DqntV2 b);
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DQNT_FILE_SCOPE bool dqnt_v2_equals (DqntV2 a, DqntV2 b);
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// Resize the dimension to fit the aspect ratio provided. Downscale only.
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DQNT_FILE_SCOPE DqntV2 dqnt_v2_constrain_to_ratio(DqntV2 dim, DqntV2 ratio);
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////////////////////////////////////////////////////////////////////////////////
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// Vec3
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////////////////////////////////////////////////////////////////////////////////
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typedef union dqnt_v3
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typedef union DqntV3
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{
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struct { f32 x, y, z; };
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struct { f32 r, g, b; };
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f32 e[3];
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} dqnt_v3;
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} DqntV3;
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DQNT_FILE_SCOPE dqnt_v3 V3i(i32 x, i32 y, i32 z);
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DQNT_FILE_SCOPE dqnt_v3 V3(f32 x, f32 y, f32 z);
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// Create a vector using ints and typecast to floats
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DQNT_FILE_SCOPE DqntV3 dqnt_v3i(i32 x, i32 y, i32 z);
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DQNT_FILE_SCOPE DqntV3 dqnt_v3 (f32 x, f32 y, f32 z);
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DQNT_FILE_SCOPE DqntV3 dqnt_v3_add (DqntV3 a, DqntV3 b);
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DQNT_FILE_SCOPE DqntV3 dqnt_v3_sub (DqntV3 a, DqntV3 b);
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DQNT_FILE_SCOPE DqntV3 dqnt_v3_scale (DqntV3 a, f32 b);
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DQNT_FILE_SCOPE DqntV3 dqnt_v3_hadamard(DqntV3 a, DqntV3 b);
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DQNT_FILE_SCOPE f32 dqnt_v3_dot (DqntV3 a, DqntV3 b);
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DQNT_FILE_SCOPE bool dqnt_v3_equals (DqntV3 a, DqntV3 b);
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////////////////////////////////////////////////////////////////////////////////
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// Vec3
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// Vec4
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////////////////////////////////////////////////////////////////////////////////
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typedef union dqnt_v4
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typedef union DqntV4
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{
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struct { f32 x, y, z, w; };
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struct { f32 r, g, b, a; };
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f32 e[4];
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dqnt_v2 vec2[2];
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} dqnt_v4;
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DqntV2 v2[2];
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} DqntV4;
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DQNT_FILE_SCOPE dqnt_v3 V3i(i32 x, i32 y, i32 z);
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DQNT_FILE_SCOPE dqnt_v4 V4(f32 x, f32 y, f32 z, f32 w);
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// Create a vector using ints and typecast to floats
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DQNT_FILE_SCOPE DqntV4 dqnt_v4i(i32 x, i32 y, i32 z);
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DQNT_FILE_SCOPE DqntV4 dqnt_v4 (f32 x, f32 y, f32 z, f32 w);
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DQNT_FILE_SCOPE DqntV4 dqnt_v4_add (DqntV4 a, DqntV4 b);
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DQNT_FILE_SCOPE DqntV4 dqnt_v4_sub (DqntV4 a, DqntV4 b);
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DQNT_FILE_SCOPE DqntV4 dqnt_v4_scale (DqntV4 a, f32 b);
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DQNT_FILE_SCOPE DqntV4 dqnt_v4_hadamard(DqntV4 a, DqntV4 b);
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DQNT_FILE_SCOPE f32 dqnt_v4_dot (DqntV4 a, DqntV4 b);
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DQNT_FILE_SCOPE bool dqnt_v4_equals (DqntV4 a, DqntV4 b);
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////////////////////////////////////////////////////////////////////////////////
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// 4D Matrix Mat4
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////////////////////////////////////////////////////////////////////////////////
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typedef union DqntMat4
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{
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DqntV4 col[4];
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// Column/row
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f32 e[4][4];
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} DqntMat4;
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DQNT_FILE_SCOPE DqntMat4 dqnt_mat4_identity ();
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DQNT_FILE_SCOPE DqntMat4 dqnt_mat4_ortho (f32 left, f32 right, f32 bottom, f32 top, f32 zNear, f32 zFar);
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DQNT_FILE_SCOPE DqntMat4 dqnt_mat4_translate(f32 x, f32 y, f32 z);
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DQNT_FILE_SCOPE DqntMat4 dqnt_mat4_rotate (f32 radians, f32 x, f32 y, f32 z);
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DQNT_FILE_SCOPE DqntMat4 dqnt_mat4_scale (f32 x, f32 y, f32 z);
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DQNT_FILE_SCOPE DqntMat4 dqnt_mat4_mul (DqntMat4 a, DqntMat4 b);
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DQNT_FILE_SCOPE DqntV4 dqnt_mat4_mul_vec4 (DqntMat4 a, DqntV4 b);
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////////////////////////////////////////////////////////////////////////////////
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// Other Math
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////////////////////////////////////////////////////////////////////////////////
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typedef struct Rect
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typedef struct DqntRect
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{
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dqnt_v2 min;
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dqnt_v2 max;
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} dqnt_rect;
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DqntV2 min;
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DqntV2 max;
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} DqntRect;
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DQNT_FILE_SCOPE DqntRect dqnt_rect (DqntV2 origin, DqntV2 size);
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DQNT_FILE_SCOPE void dqnt_rect_get_size_2f(DqntRect rect, f32 *width, f32 *height);
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DQNT_FILE_SCOPE DqntV2 dqnt_rect_get_size_v2(DqntRect rect);
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DQNT_FILE_SCOPE DqntV2 dqnt_rect_get_centre (DqntRect rect);
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DQNT_FILE_SCOPE DqntRect dqnt_rect_move (DqntRect rect, DqntV2 shift);
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DQNT_FILE_SCOPE bool dqnt_rect_contains_p (DqntRect rect, DqntV2 p);
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////////////////////////////////////////////////////////////////////////////////
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// String Ops
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////////////////////////////////////////////////////////////////////////////////
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@ -117,9 +166,9 @@ DQNT_FILE_SCOPE bool dqnt_str_reverse(char *buf, const i32 bufSize);
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DQNT_FILE_SCOPE i32 dqnt_str_to_i32 (char *const buf, const i32 bufSize);
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DQNT_FILE_SCOPE void dqnt_i32_to_str (i32 value, char *buf, i32 bufSize);
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DQNT_FILE_SCOPE i32 dqnt_wstrcmp(const wchar_t *a, const wchar_t *b);
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DQNT_FILE_SCOPE void dqnt_wstrcat(const wchar_t *a, i32 lenA, const wchar_t *b, i32 lenB, wchar_t *out, i32 outLen);
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DQNT_FILE_SCOPE i32 dqnt_wstrlen(const wchar_t *a);
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DQNT_FILE_SCOPE i32 dqnt_wstrcmp(const wchar_t *a, const wchar_t *b);
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DQNT_FILE_SCOPE void dqnt_wstrcat(const wchar_t *a, i32 lenA, const wchar_t *b, i32 lenB, wchar_t *out, i32 outLen);
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DQNT_FILE_SCOPE i32 dqnt_wstrlen(const wchar_t *a);
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////////////////////////////////////////////////////////////////////////////////
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// Timer
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@ -165,33 +214,94 @@ DQNT_FILE_SCOPE i32 dqnt_rnd_pcg_range(DqntRandPCGState *pcg, i32 min, i32 max)
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#define WIN32_LEAN_AND_MEAN
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#endif
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////////////////////////////////////////////////////////////////////////////////
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// Vec2
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////////////////////////////////////////////////////////////////////////////////
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DQNT_FILE_SCOPE inline dqnt_v2 dqnt_vec2(f32 x, f32 y)
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DQNT_FILE_SCOPE inline DqntV2 dqnt_v2(f32 x, f32 y)
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{
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dqnt_v2 result = {};
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DqntV2 result = {};
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result.x = x;
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result.y = y;
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return result;
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}
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DQNT_FILE_SCOPE inline dqnt_v2 dqnt_vec2i(i32 x, i32 y)
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DQNT_FILE_SCOPE inline DqntV2 dqnt_v2i(i32 x, i32 y)
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{
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dqnt_v2 result = dqnt_vec2((f32)x, (f32)y);
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DqntV2 result = dqnt_v2((f32)x, (f32)y);
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return result;
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}
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DQNT_FILE_SCOPE dqnt_v2 dqnt_vec2_constrain_to_ratio(dqnt_v2 dim,
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dqnt_v2 ratio)
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DQNT_FILE_SCOPE inline DqntV2 dqnt_v2_add(DqntV2 a, DqntV2 b)
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{
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dqnt_v2 result = {};
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DqntV2 result;
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for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
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result.e[i] = a.e[i] + b.e[i];
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return result;
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}
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DQNT_FILE_SCOPE inline DqntV2 dqnt_v2_sub(DqntV2 a, DqntV2 b)
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{
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DqntV2 result;
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for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
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result.e[i] = a.e[i] - b.e[i];
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return result;
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}
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DQNT_FILE_SCOPE inline DqntV2 dqnt_v2_scale(DqntV2 a, f32 b)
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{
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DqntV2 result;
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for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
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result.e[i] = a.e[i] * b;
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return result;
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}
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DQNT_FILE_SCOPE inline DqntV2 dqnt_v2_hadamard(DqntV2 a, DqntV2 b)
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{
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DqntV2 result;
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for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
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result.e[i] = a.e[i] * b.e[i];
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return result;
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}
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DQNT_FILE_SCOPE inline f32 dqnt_v2_dot(DqntV2 a, DqntV2 b)
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{
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/*
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DOT PRODUCT
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Two vectors with dot product equals |a||b|cos(theta)
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|a| |d|
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|b| . |e| = (ad + be + cf)
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|c| |f|
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*/
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f32 result = 0;
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for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
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result += (a.e[i] * b.e[i]);
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return result;
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}
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DQNT_FILE_SCOPE inline bool dqnt_v2_equals(DqntV2 a, DqntV2 b)
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{
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bool result = TRUE;
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for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
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if (a.e[i] != b.e[i]) result = FALSE;
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return result;
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}
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DQNT_FILE_SCOPE DqntV2 dqnt_v2_constrain_to_ratio(DqntV2 dim, DqntV2 ratio)
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{
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DqntV2 result = {};
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f32 numRatioIncrementsToWidth = (f32)(dim.w / ratio.w);
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f32 numRatioIncrementsToHeight = (f32)(dim.h / ratio.h);
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f32 leastIncrementsToSide =
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DQNT_MATH_MIN(numRatioIncrementsToHeight, numRatioIncrementsToWidth);
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DQNT_MIN(numRatioIncrementsToHeight, numRatioIncrementsToWidth);
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result.w = (f32)(ratio.w * leastIncrementsToSide);
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result.h = (f32)(ratio.h * leastIncrementsToSide);
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@ -201,35 +311,315 @@ DQNT_FILE_SCOPE dqnt_v2 dqnt_vec2_constrain_to_ratio(dqnt_v2 dim,
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////////////////////////////////////////////////////////////////////////////////
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// Vec3
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////////////////////////////////////////////////////////////////////////////////
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DQNT_FILE_SCOPE inline dqnt_v3 dqnt_vec3(f32 x, f32 y, f32 z)
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DQNT_FILE_SCOPE inline DqntV3 dqnt_v3(f32 x, f32 y, f32 z)
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{
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dqnt_v3 result = {};
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DqntV3 result = {};
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result.x = x;
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result.y = y;
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result.z = z;
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return result;
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}
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DQNT_FILE_SCOPE inline dqnt_v3 dqnt_vec3i(i32 x, i32 y, i32 z)
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DQNT_FILE_SCOPE inline DqntV3 dqnt_v3i(i32 x, i32 y, i32 z)
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{
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dqnt_v3 result = dqnt_vec3((f32)x, (f32)y, (f32)z);
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DqntV3 result = dqnt_v3((f32)x, (f32)y, (f32)z);
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return result;
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}
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DQNT_FILE_SCOPE inline DqntV3 dqnt_v3_add(DqntV3 a, DqntV3 b)
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{
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DqntV3 result;
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for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
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result.e[i] = a.e[i] + b.e[i];
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return result;
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}
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DQNT_FILE_SCOPE inline DqntV3 dqnt_v3_sub(DqntV3 a, DqntV3 b)
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{
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DqntV3 result;
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for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
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result.e[i] = a.e[i] - b.e[i];
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return result;
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}
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DQNT_FILE_SCOPE inline DqntV3 dqnt_v3_scale(DqntV3 a, f32 b)
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{
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DqntV3 result;
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for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
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result.e[i] = a.e[i] * b;
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return result;
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}
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DQNT_FILE_SCOPE inline DqntV3 dqnt_v3_hadamard(DqntV3 a, DqntV3 b)
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{
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DqntV3 result;
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for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
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result.e[i] = a.e[i] * b.e[i];
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return result;
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}
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DQNT_FILE_SCOPE inline f32 dqnt_v3_dot(DqntV3 a, DqntV3 b)
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{
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/*
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DOT PRODUCT
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Two vectors with dot product equals |a||b|cos(theta)
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|a| |d|
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|b| . |e| = (ad + be + cf)
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|c| |f|
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*/
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f32 result = 0;
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for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
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result += (a.e[i] * b.e[i]);
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return result;
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}
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DQNT_FILE_SCOPE inline bool dqnt_v3_equals(DqntV3 a, DqntV3 b)
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{
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bool result = TRUE;
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for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
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if (a.e[i] != b.e[i]) result = FALSE;
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return result;
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}
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////////////////////////////////////////////////////////////////////////////////
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// Vec4
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////////////////////////////////////////////////////////////////////////////////
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DQNT_FILE_SCOPE inline dqnt_v4 dqnt_vec4(f32 x, f32 y, f32 z, f32 w)
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DQNT_FILE_SCOPE inline DqntV4 dqnt_v4(f32 x, f32 y, f32 z, f32 w)
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{
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dqnt_v4 result = {x, y, z, w};
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DqntV4 result = {x, y, z, w};
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return result;
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}
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DQNT_FILE_SCOPE inline dqnt_v4 dqnt_vec4i(i32 x, i32 y, i32 z, i32 w) {
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dqnt_v4 result = dqnt_vec4((f32)x, (f32)y, (f32)z, (f32)w);
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DQNT_FILE_SCOPE inline DqntV4 dqnt_v4i(i32 x, i32 y, i32 z, i32 w) {
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DqntV4 result = dqnt_v4((f32)x, (f32)y, (f32)z, (f32)w);
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return result;
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}
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DQNT_FILE_SCOPE inline DqntV4 dqnt_v4_add(DqntV4 a, DqntV4 b)
|
||||
{
|
||||
DqntV4 result;
|
||||
for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
|
||||
result.e[i] = a.e[i] + b.e[i];
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
DQNT_FILE_SCOPE inline DqntV4 dqnt_v4_sub(DqntV4 a, DqntV4 b)
|
||||
{
|
||||
DqntV4 result;
|
||||
for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
|
||||
result.e[i] = a.e[i] - b.e[i];
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
DQNT_FILE_SCOPE inline DqntV4 dqnt_v4_scale(DqntV4 a, f32 b)
|
||||
{
|
||||
DqntV4 result;
|
||||
for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
|
||||
result.e[i] = a.e[i] * b;
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
DQNT_FILE_SCOPE inline DqntV4 dqnt_v4_hadamard(DqntV4 a, DqntV4 b)
|
||||
{
|
||||
DqntV4 result;
|
||||
for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
|
||||
result.e[i] = a.e[i] * b.e[i];
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
DQNT_FILE_SCOPE inline f32 dqnt_v4_dot(DqntV4 a, DqntV4 b)
|
||||
{
|
||||
/*
|
||||
DOT PRODUCT
|
||||
Two vectors with dot product equals |a||b|cos(theta)
|
||||
|a| |d|
|
||||
|b| . |e| = (ad + be + cf)
|
||||
|c| |f|
|
||||
*/
|
||||
f32 result = 0;
|
||||
for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
|
||||
result += (a.e[i] * b.e[i]);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
DQNT_FILE_SCOPE inline bool dqnt_v4_equals(DqntV4 a, DqntV4 b)
|
||||
{
|
||||
bool result = TRUE;
|
||||
for (i32 i = 0; i < DQNT_ARRAY_COUNT(a.e); i++)
|
||||
if (a.e[i] != b.e[i]) result = FALSE;
|
||||
return result;
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// 4D Matrix Mat4
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
DQNT_FILE_SCOPE inline DqntMat4 dqnt_mat4_identity()
|
||||
{
|
||||
DqntMat4 result = {0};
|
||||
result.e[0][0] = 1;
|
||||
result.e[1][1] = 1;
|
||||
result.e[2][2] = 1;
|
||||
result.e[3][3] = 1;
|
||||
return result;
|
||||
}
|
||||
|
||||
DQNT_FILE_SCOPE inline DqntMat4
|
||||
dqnt_mat4_ortho(f32 left, f32 right, f32 bottom, f32 top, f32 zNear, f32 zFar)
|
||||
{
|
||||
DqntMat4 result = dqnt_mat4_identity();
|
||||
result.e[0][0] = +2.0f / (right - left);
|
||||
result.e[1][1] = +2.0f / (top - bottom);
|
||||
result.e[2][2] = -2.0f / (zFar - zNear);
|
||||
|
||||
result.e[3][0] = -(right + left) / (right - left);
|
||||
result.e[3][1] = -(top + bottom) / (top - bottom);
|
||||
result.e[3][2] = -(zFar + zNear) / (zFar - zNear);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
DQNT_FILE_SCOPE inline DqntMat4 dqnt_mat4_translate(f32 x, f32 y, f32 z)
|
||||
{
|
||||
DqntMat4 result = dqnt_mat4_identity();
|
||||
result.e[3][0] = x;
|
||||
result.e[3][1] = y;
|
||||
result.e[3][2] = z;
|
||||
return result;
|
||||
}
|
||||
|
||||
DQNT_FILE_SCOPE inline DqntMat4 dqnt_mat4_rotate(f32 radians, f32 x, f32 y, f32 z)
|
||||
{
|
||||
DqntMat4 result = dqnt_mat4_identity();
|
||||
f32 sinVal = sinf(radians);
|
||||
f32 cosVal = cosf(radians);
|
||||
|
||||
result.e[0][0] = (cosVal + (DQNT_SQUARED(x) * (1.0f - cosVal)));
|
||||
result.e[0][1] = ((y * z * (1.0f - cosVal)) + (z * sinVal));
|
||||
result.e[0][2] = ((z * x * (1.0f - cosVal)) - (y * sinVal));
|
||||
|
||||
result.e[1][0] = ((x * y * (1.0f - cosVal)) - (z * sinVal));
|
||||
result.e[1][1] = (cosVal + (DQNT_SQUARED(y) * (1.0f - cosVal)));
|
||||
result.e[1][2] = ((z * y * (1.0f - cosVal)) + (x * sinVal));
|
||||
|
||||
result.e[2][0] = ((x * z * (1.0f - cosVal)) + (y * sinVal));
|
||||
result.e[2][1] = ((y * z * (1.0f - cosVal)) - (x * sinVal));
|
||||
result.e[2][2] = (cosVal + (DQNT_SQUARED(z) * (1.0f - cosVal)));
|
||||
|
||||
result.e[3][3] = 1;
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
DQNT_FILE_SCOPE inline DqntMat4 dqnt_mat4_scale(f32 x, f32 y, f32 z)
|
||||
{
|
||||
DqntMat4 result = {0};
|
||||
result.e[0][0] = x;
|
||||
result.e[1][1] = y;
|
||||
result.e[2][2] = z;
|
||||
result.e[3][3] = 1;
|
||||
return result;
|
||||
}
|
||||
|
||||
DQNT_FILE_SCOPE inline DqntMat4 dqnt_mat4_mul(DqntMat4 a, DqntMat4 b)
|
||||
{
|
||||
DqntMat4 result = {0};
|
||||
for (i32 j = 0; j < 4; j++) {
|
||||
for (i32 i = 0; i < 4; i++) {
|
||||
result.e[j][i] = a.e[0][i] * b.e[j][0]
|
||||
+ a.e[1][i] * b.e[j][1]
|
||||
+ a.e[2][i] * b.e[j][2]
|
||||
+ a.e[3][i] * b.e[j][3];
|
||||
}
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
DQNT_FILE_SCOPE inline DqntV4 dqnt_mat4_mul_vec4(DqntMat4 a, DqntV4 b)
|
||||
{
|
||||
DqntV4 result = {0};
|
||||
|
||||
result.x = (a.e[0][0] * b.x) + (a.e[1][0] * b.y) + (a.e[2][0] * b.z) +
|
||||
(a.e[3][0] * b.w);
|
||||
result.y = (a.e[0][1] * b.x) + (a.e[1][1] * b.y) + (a.e[2][1] * b.z) +
|
||||
(a.e[3][1] * b.w);
|
||||
result.z = (a.e[0][2] * b.x) + (a.e[1][2] * b.y) + (a.e[2][2] * b.z) +
|
||||
(a.e[3][2] * b.w);
|
||||
result.w = (a.e[0][3] * b.x) + (a.e[1][3] * b.y) + (a.e[2][3] * b.z) +
|
||||
(a.e[3][3] * b.w);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Rect
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
DQNT_FILE_SCOPE inline DqntRect dqnt_rect(DqntV2 origin, DqntV2 size)
|
||||
{
|
||||
DqntRect result = {};
|
||||
result.min = origin;
|
||||
result.max = dqnt_v2_add(origin, size);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
DQNT_FILE_SCOPE inline void dqnt_rect_get_size_2f(DqntRect rect, f32 *width, f32 *height)
|
||||
{
|
||||
*width = DQNT_ABS(rect.max.x - rect.min.x);
|
||||
*height = DQNT_ABS(rect.max.y - rect.min.y);
|
||||
}
|
||||
|
||||
DQNT_FILE_SCOPE inline DqntV2 dqnt_rect_get_size_v2(DqntRect rect)
|
||||
{
|
||||
f32 width = DQNT_ABS(rect.max.x - rect.min.x);
|
||||
f32 height = DQNT_ABS(rect.max.y - rect.min.y);
|
||||
DqntV2 result = dqnt_v2(width, height);
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
DQNT_FILE_SCOPE inline DqntV2 dqnt_rect_get_centre(DqntRect rect)
|
||||
{
|
||||
f32 sumX = rect.min.x + rect.max.x;
|
||||
f32 sumY = rect.min.y + rect.max.y;
|
||||
DqntV2 result = dqnt_v2_scale(dqnt_v2(sumX, sumY), 0.5f);
|
||||
return result;
|
||||
}
|
||||
|
||||
DQNT_FILE_SCOPE inline DqntRect dqnt_rect_move(DqntRect rect, DqntV2 shift)
|
||||
{
|
||||
DqntRect result = {0};
|
||||
result.min = dqnt_v2_add(rect.min, shift);
|
||||
result.max = dqnt_v2_add(rect.max, shift);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
DQNT_FILE_SCOPE inline bool dqnt_rect_contains_p(DqntRect rect, DqntV2 p)
|
||||
{
|
||||
bool outsideOfRectX = false;
|
||||
if (p.x < rect.min.x || p.x > rect.max.w)
|
||||
outsideOfRectX = true;
|
||||
|
||||
bool outsideOfRectY = false;
|
||||
if (p.y < rect.min.y || p.y > rect.max.h)
|
||||
outsideOfRectY = true;
|
||||
|
||||
if (outsideOfRectX || outsideOfRectY) return false;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// String Ops
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
@ -353,7 +743,7 @@ DQNT_FILE_SCOPE void dqnt_i32_to_str(i32 value, char *buf, i32 bufSize)
|
||||
|
||||
if (negative) buf[charIndex++] = '-';
|
||||
|
||||
i32 val = DQNT_MATH_ABS(value);
|
||||
i32 val = DQNT_ABS(value);
|
||||
while (val != 0 && charIndex < bufSize)
|
||||
{
|
||||
i32 rem = val % 10;
|
||||
|
||||
@ -262,8 +262,8 @@ void dqnt_strings_test()
|
||||
void dqnt_other_test()
|
||||
{
|
||||
{ // Test Win32 Sleep
|
||||
// NOTE: Win32 Sleep is not granular to a certain point so sleep excessively to meet
|
||||
u32 sleepInMs = 100;
|
||||
// NOTE: Win32 Sleep is not granular to a certain point so sleep excessively
|
||||
u32 sleepInMs = 1000;
|
||||
f64 startInMs = dqnt_time_now_in_ms();
|
||||
Sleep(sleepInMs);
|
||||
f64 endInMs = dqnt_time_now_in_ms();
|
||||
@ -296,22 +296,49 @@ void dqnt_random_test() {
|
||||
void dqnt_vec_test()
|
||||
{
|
||||
{ // V2
|
||||
|
||||
// V2 Creating
|
||||
{
|
||||
dqnt_v2 vec = dqnt_vec2(5.5f, 5.0f);
|
||||
DqntV2 vec = dqnt_v2(5.5f, 5.0f);
|
||||
DQNT_ASSERT(vec.x == 5.5f && vec.y == 5.0f);
|
||||
DQNT_ASSERT(vec.w == 5.5f && vec.h == 5.0f);
|
||||
}
|
||||
|
||||
// V2i Creating
|
||||
{
|
||||
dqnt_v2 vec = dqnt_vec2i(3, 5);
|
||||
DqntV2 vec = dqnt_v2i(3, 5);
|
||||
DQNT_ASSERT(vec.x == 3 && vec.y == 5.0f);
|
||||
DQNT_ASSERT(vec.w == 3 && vec.h == 5.0f);
|
||||
}
|
||||
|
||||
// V2 Arithmetic
|
||||
{
|
||||
DqntV2 vecA = dqnt_v2(5, 10);
|
||||
DqntV2 vecB = dqnt_v2i(2, 3);
|
||||
DQNT_ASSERT(dqnt_v2_equals(vecA, vecB) == false);
|
||||
DQNT_ASSERT(dqnt_v2_equals(vecA, dqnt_v2(5, 10)) == true);
|
||||
DQNT_ASSERT(dqnt_v2_equals(vecB, dqnt_v2(2, 3)) == true);
|
||||
|
||||
DqntV2 result = dqnt_v2_add(vecA, dqnt_v2(5, 10));
|
||||
DQNT_ASSERT(dqnt_v2_equals(result, dqnt_v2(10, 20)) == true);
|
||||
|
||||
result = dqnt_v2_sub(result, dqnt_v2(5, 10));
|
||||
DQNT_ASSERT(dqnt_v2_equals(result, dqnt_v2(5, 10)) == true);
|
||||
|
||||
result = dqnt_v2_scale(result, 5);
|
||||
DQNT_ASSERT(dqnt_v2_equals(result, dqnt_v2(25, 50)) == true);
|
||||
|
||||
result = dqnt_v2_hadamard(result, dqnt_v2(10, 0.5f));
|
||||
DQNT_ASSERT(dqnt_v2_equals(result, dqnt_v2(250, 25)) == true);
|
||||
|
||||
f32 dotResult = dqnt_v2_dot(dqnt_v2(5, 10), dqnt_v2(3, 4));
|
||||
DQNT_ASSERT(dotResult == 55);
|
||||
}
|
||||
|
||||
{ // constrain_to_ratio
|
||||
dqnt_v2 ratio = dqnt_vec2(16, 9);
|
||||
dqnt_v2 dim = dqnt_vec2(2000, 1080);
|
||||
dqnt_v2 result = dqnt_vec2_constrain_to_ratio(dim, ratio);
|
||||
DqntV2 ratio = dqnt_v2(16, 9);
|
||||
DqntV2 dim = dqnt_v2(2000, 1080);
|
||||
DqntV2 result = dqnt_v2_constrain_to_ratio(dim, ratio);
|
||||
DQNT_ASSERT(result.w == 1920 && result.h == 1080);
|
||||
}
|
||||
|
||||
@ -319,34 +346,88 @@ void dqnt_vec_test()
|
||||
}
|
||||
|
||||
{ // V3
|
||||
|
||||
// V3i Creating
|
||||
{
|
||||
dqnt_v3 vec = dqnt_vec3(5.5f, 5.0f, 5.875f);
|
||||
DqntV3 vec = dqnt_v3(5.5f, 5.0f, 5.875f);
|
||||
DQNT_ASSERT(vec.x == 5.5f && vec.y == 5.0f && vec.z == 5.875f);
|
||||
DQNT_ASSERT(vec.r == 5.5f && vec.g == 5.0f && vec.b == 5.875f);
|
||||
}
|
||||
|
||||
// V3i Creating
|
||||
{
|
||||
dqnt_v3 vec = dqnt_vec3(3, 4, 5);
|
||||
DqntV3 vec = dqnt_v3i(3, 4, 5);
|
||||
DQNT_ASSERT(vec.x == 3 && vec.y == 4 && vec.z == 5);
|
||||
DQNT_ASSERT(vec.r == 3 && vec.g == 4 && vec.b == 5);
|
||||
}
|
||||
|
||||
// V3 Arithmetic
|
||||
{
|
||||
DqntV3 vecA = dqnt_v3(5, 10, 15);
|
||||
DqntV3 vecB = dqnt_v3(2, 3, 6);
|
||||
DQNT_ASSERT(dqnt_v3_equals(vecA, vecB) == false);
|
||||
DQNT_ASSERT(dqnt_v3_equals(vecA, dqnt_v3(5, 10, 15)) == true);
|
||||
DQNT_ASSERT(dqnt_v3_equals(vecB, dqnt_v3(2, 3, 6)) == true);
|
||||
|
||||
DqntV3 result = dqnt_v3_add(vecA, dqnt_v3(5, 10, 15));
|
||||
DQNT_ASSERT(dqnt_v3_equals(result, dqnt_v3(10, 20, 30)) == true);
|
||||
|
||||
result = dqnt_v3_sub(result, dqnt_v3(5, 10, 15));
|
||||
DQNT_ASSERT(dqnt_v3_equals(result, dqnt_v3(5, 10, 15)) == true);
|
||||
|
||||
result = dqnt_v3_scale(result, 5);
|
||||
DQNT_ASSERT(dqnt_v3_equals(result, dqnt_v3(25, 50, 75)) == true);
|
||||
|
||||
result = dqnt_v3_hadamard(result, dqnt_v3(10.0f, 0.5f, 10.0f));
|
||||
DQNT_ASSERT(dqnt_v3_equals(result, dqnt_v3(250, 25, 750)) == true);
|
||||
|
||||
f32 dotResult = dqnt_v3_dot(dqnt_v3(5, 10, 2), dqnt_v3(3, 4, 6));
|
||||
DQNT_ASSERT(dotResult == 67);
|
||||
}
|
||||
|
||||
printf("dqnt_vec_test(): vec3: Completed successfully\n");
|
||||
}
|
||||
|
||||
{ // V4
|
||||
|
||||
// V4 Creating
|
||||
{
|
||||
dqnt_v4 vec = dqnt_vec4(5.5f, 5.0f, 5.875f, 5.928f);
|
||||
DqntV4 vec = dqnt_v4(5.5f, 5.0f, 5.875f, 5.928f);
|
||||
DQNT_ASSERT(vec.x == 5.5f && vec.y == 5.0f && vec.z == 5.875f && vec.w == 5.928f);
|
||||
DQNT_ASSERT(vec.r == 5.5f && vec.g == 5.0f && vec.b == 5.875f && vec.a == 5.928f);
|
||||
}
|
||||
|
||||
// V4i Creating
|
||||
{
|
||||
dqnt_v4 vec = dqnt_vec4i(3, 4, 5, 6);
|
||||
DqntV4 vec = dqnt_v4i(3, 4, 5, 6);
|
||||
DQNT_ASSERT(vec.x == 3 && vec.y == 4 && vec.z == 5 && vec.w == 6);
|
||||
DQNT_ASSERT(vec.r == 3 && vec.g == 4 && vec.b == 5 && vec.a == 6);
|
||||
}
|
||||
|
||||
// V4 Arithmetic
|
||||
{
|
||||
DqntV4 vecA = dqnt_v4(5, 10, 15, 20);
|
||||
DqntV4 vecB = dqnt_v4i(2, 3, 6, 8);
|
||||
DQNT_ASSERT(dqnt_v4_equals(vecA, vecB) == false);
|
||||
DQNT_ASSERT(dqnt_v4_equals(vecA, dqnt_v4(5, 10, 15, 20)) == true);
|
||||
DQNT_ASSERT(dqnt_v4_equals(vecB, dqnt_v4(2, 3, 6, 8)) == true);
|
||||
|
||||
DqntV4 result = dqnt_v4_add(vecA, dqnt_v4(5, 10, 15, 20));
|
||||
DQNT_ASSERT(dqnt_v4_equals(result, dqnt_v4(10, 20, 30, 40)) == true);
|
||||
|
||||
result = dqnt_v4_sub(result, dqnt_v4(5, 10, 15, 20));
|
||||
DQNT_ASSERT(dqnt_v4_equals(result, dqnt_v4(5, 10, 15, 20)) == true);
|
||||
|
||||
result = dqnt_v4_scale(result, 5);
|
||||
DQNT_ASSERT(dqnt_v4_equals(result, dqnt_v4(25, 50, 75, 100)) == true);
|
||||
|
||||
result = dqnt_v4_hadamard(result, dqnt_v4(10, 0.5f, 10, 0.25f));
|
||||
DQNT_ASSERT(dqnt_v4_equals(result, dqnt_v4(250, 25, 750, 25)) == true);
|
||||
|
||||
f32 dotResult = dqnt_v4_dot(dqnt_v4(5, 10, 2, 8), dqnt_v4(3, 4, 6, 5));
|
||||
DQNT_ASSERT(dotResult == 107);
|
||||
}
|
||||
|
||||
printf("dqnt_vec_test(): vec4: Completed successfully\n");
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user