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add fp16 with fp32 fallback

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Yggdrasil75
2026-01-21 10:13:39 -05:00
parent ff3e4711db
commit dc514cfe31
2 changed files with 10 additions and 79 deletions
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83
util/vectorlogic/vec3.hpp
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@@ -6,6 +6,7 @@
#include <string>
#include <ostream>
#include <cstdint>
#include <stdfloat>
#include "vec2.hpp"
#ifdef __SSE__
@@ -41,6 +42,7 @@ public:
for (size_t i = 0; i < count; ++i) {
result[i] = a[i] + b[i];
}
return *this;
}
template<typename U>
@@ -517,83 +519,12 @@ public:
}
};
// #ifdef __SSE__
// template<>
// class Vec3<float> {
// union {
// __m128 simd;
// struct { float x, y, z, w; };
// }
// public:
// Vec3() noexcept : simd(_mm_setzero_ps()) {}
// Vec3(float x, float y, float z) noexcept {
// simd = _mm_set_ps(0.0f, z, y, x);
// }
// Vec3(float scalar) noexcept {
// simd = _mm_set_ps(0.0f, scalar, scalar, scalar);
// }
// Vec3(const Vec3<float>& other) noexcept : simd(other.simd) {}
// Vec3<float>& operator=(const Vec3<float>& other) noexcept {
// simd = other.simd;
// return *this;
// }
// Vec3<float> operator+(const Vec3<float>& other) const noexcept {
// Vec3<float> result;
// result.simd = _mm_add_ps(simd, other.simd);
// return result;
// }
// Vec3<float> operator-(const Vec3<float>& other) const noexcept {
// Vec3<float> result;
// result.simd = _mm_sub_ps(simd, other.simd);
// return result;
// }
// Vec3<float> operator*(const Vec3<float>& other) const noexcept {
// Vec3<float> result;
// result.simd = _mm_mul_ps(simd, other.simd);
// return result;
// }
// Vec3<float> operator*(float scalar) const noexcept {
// Vec3<float> result;
// __m128 scalar_vec = _mm_set1_ps(scalar);
// result.simd = _mm_mul_ps(simd, scalar_vec);
// return result;
// }
// float dot(const Vec3<float>& other) const noexcept {
// __m128 mul = _mm_mul_ps(simd, other.simd);
// __m128 shuf = _mm_movehdup_ps(mul);
// __m128 sums = _mm_add_ps(mul, shuf);
// shuf = _mm_movehl_ps(shuf, sums);
// sums = _mm_add_ss(sums, shuf);
// return _mm_cvtss_f32(sums);
// }
// // Add other necessary methods for the specialization
// float length() const {
// float len_sq = dot(*this);
// return std::sqrt(len_sq);
// }
// Vec3<float> normalized() const {
// float len = length();
// if (len > 0) {
// return *this * (1.0f / len);
// }
// return *this;
// }
// };
// #endif
//use a smaller format first instead of larger format.
#ifdef std::float16_t
using Vec3f = Vec3<std::float16_t>;
#else
using Vec3f = Vec3<float>;
#endif
using Vec3d = Vec3<double>;
using Vec3i = Vec3<int>;
using Vec3i32 = Vec3<uint32_t>;