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feat: add vec4 functions

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This commit is contained in:
Loïc GUEZO
2025-06-11 17:26:41 +02:00
parent 8e26c51370
commit e853d6d456
5 changed files with 140 additions and 71 deletions
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54
src/math/vec4.h
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@@ -20,58 +20,22 @@ typedef union
float data[4];
} Vec4f_t;
static inline Vec4f_t vec4f_from_array(float *__restrict val)
{
Vec4f_t vec4;
memcpy(vec4.data, val, 4*sizeof(float));
return vec4;
}
static inline Vec4f_t vec4(float x, float y, float z, float w)
{
return (Vec4f_t){x, y, z, w};
}
Vec4f_t vec4f_from_array(float *__restrict val);
Vec4f_t vec4(float x, float y, float z, float w);
// (f, f, f, f)
static inline Vec4f_t vec4f_scalar(float f) {
Vec4f_t vec4;
// store f x 4 in register
// add all register into data
#if defined(SIMD_X86)
__m128 scalar = _mm_set1_ps(f);
_mm_storeu_ps(vec4.data, scalar);
#elif defined(SIMD_ARCH)
float32x4_t scalar = vdupq_n_f32(f);
vst1q_f32(vec4.data, scalar);
// add one by one each value to their specific address
#else
for (int i = 0; i < 4; i++) {
vec4.data[i] = f;
}
#endif
return vec4;
}
Vec4f_t vec4f_scalar(float f);
// (0, 0, 0, 0)
static inline Vec4f_t Vec4f_zero(void)
{
return vec4f_scalar(0.f);
}
Vec4f_t vec4f_zero(void);
Vec4f_t vec4f_clone(Vec4f_t *__restrict v);
Vec4f_t vec4f_add_r(Vec4f_t *__restrict out, Vec4f_t a);
Vec4f_t vec4f_add(Vec4f_t a, Vec4f_t b);
Vec4f_t vec4f_sub_r(Vec4f_t *__restrict out, Vec4f_t a);
Vec4f_t vec4f_sub(Vec4f_t a, Vec4f_t b);
// Vec4_t vec4(float x, float y, float z, float w);
// Vec4_t vec4_add(Vec4_t v1, Vec4_t v2);
// Vec4_t vec4_sub(Vec4_t v1, Vec4_t v2);
// Vec4_t vec4_scale(Vec4_t v, float scalar);
Vec4f_t vec4f_scale_r(Vec4f_t *__restrict out, float scale);
Vec4f_t vec4f_scale(Vec4f_t a, float scale);
// float vec4_dot(Vec4_t a, Vec4_t b);