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Diffstat (limited to 'external/include/glm/simd/geometric.h')
| -rw-r--r-- | external/include/glm/simd/geometric.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/external/include/glm/simd/geometric.h b/external/include/glm/simd/geometric.h new file mode 100644 index 0000000..ca53387 --- /dev/null +++ b/external/include/glm/simd/geometric.h @@ -0,0 +1,124 @@ +/// @ref simd +/// @file glm/simd/geometric.h + +#pragma once + +#include "common.h" + +#if GLM_ARCH & GLM_ARCH_SSE2_BIT + +GLM_FUNC_DECL glm_vec4 glm_vec4_dot(glm_vec4 v1, glm_vec4 v2); +GLM_FUNC_DECL glm_vec4 glm_vec1_dot(glm_vec4 v1, glm_vec4 v2); + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_length(glm_vec4 x) +{ + glm_vec4 const dot0 = glm_vec4_dot(x, x); + glm_vec4 const sqt0 = _mm_sqrt_ps(dot0); + return sqt0; +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_distance(glm_vec4 p0, glm_vec4 p1) +{ + glm_vec4 const sub0 = _mm_sub_ps(p0, p1); + glm_vec4 const len0 = glm_vec4_length(sub0); + return len0; +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_dot(glm_vec4 v1, glm_vec4 v2) +{ +# if GLM_ARCH & GLM_ARCH_AVX_BIT + return _mm_dp_ps(v1, v2, 0xff); +# elif GLM_ARCH & GLM_ARCH_SSE3_BIT + glm_vec4 const mul0 = _mm_mul_ps(v1, v2); + glm_vec4 const hadd0 = _mm_hadd_ps(mul0, mul0); + glm_vec4 const hadd1 = _mm_hadd_ps(hadd0, hadd0); + return hadd1; +# else + glm_vec4 const mul0 = _mm_mul_ps(v1, v2); + glm_vec4 const swp0 = _mm_shuffle_ps(mul0, mul0, _MM_SHUFFLE(2, 3, 0, 1)); + glm_vec4 const add0 = _mm_add_ps(mul0, swp0); + glm_vec4 const swp1 = _mm_shuffle_ps(add0, add0, _MM_SHUFFLE(0, 1, 2, 3)); + glm_vec4 const add1 = _mm_add_ps(add0, swp1); + return add1; +# endif +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec1_dot(glm_vec4 v1, glm_vec4 v2) +{ +# if GLM_ARCH & GLM_ARCH_AVX_BIT + return _mm_dp_ps(v1, v2, 0xff); +# elif GLM_ARCH & GLM_ARCH_SSE3_BIT + glm_vec4 const mul0 = _mm_mul_ps(v1, v2); + glm_vec4 const had0 = _mm_hadd_ps(mul0, mul0); + glm_vec4 const had1 = _mm_hadd_ps(had0, had0); + return had1; +# else + glm_vec4 const mul0 = _mm_mul_ps(v1, v2); + glm_vec4 const mov0 = _mm_movehl_ps(mul0, mul0); + glm_vec4 const add0 = _mm_add_ps(mov0, mul0); + glm_vec4 const swp1 = _mm_shuffle_ps(add0, add0, 1); + glm_vec4 const add1 = _mm_add_ss(add0, swp1); + return add1; +# endif +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_cross(glm_vec4 v1, glm_vec4 v2) +{ + glm_vec4 const swp0 = _mm_shuffle_ps(v1, v1, _MM_SHUFFLE(3, 0, 2, 1)); + glm_vec4 const swp1 = _mm_shuffle_ps(v1, v1, _MM_SHUFFLE(3, 1, 0, 2)); + glm_vec4 const swp2 = _mm_shuffle_ps(v2, v2, _MM_SHUFFLE(3, 0, 2, 1)); + glm_vec4 const swp3 = _mm_shuffle_ps(v2, v2, _MM_SHUFFLE(3, 1, 0, 2)); + glm_vec4 const mul0 = _mm_mul_ps(swp0, swp3); + glm_vec4 const mul1 = _mm_mul_ps(swp1, swp2); + glm_vec4 const sub0 = _mm_sub_ps(mul0, mul1); + return sub0; +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_normalize(glm_vec4 v) +{ + glm_vec4 const dot0 = glm_vec4_dot(v, v); + glm_vec4 const isr0 = _mm_rsqrt_ps(dot0); + glm_vec4 const mul0 = _mm_mul_ps(v, isr0); + return mul0; +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_faceforward(glm_vec4 N, glm_vec4 I, glm_vec4 Nref) +{ + glm_vec4 const dot0 = glm_vec4_dot(Nref, I); + glm_vec4 const sgn0 = glm_vec4_sign(dot0); + glm_vec4 const mul0 = _mm_mul_ps(sgn0, _mm_set1_ps(-1.0f)); + glm_vec4 const mul1 = _mm_mul_ps(N, mul0); + return mul1; +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_reflect(glm_vec4 I, glm_vec4 N) +{ + glm_vec4 const dot0 = glm_vec4_dot(N, I); + glm_vec4 const mul0 = _mm_mul_ps(N, dot0); + glm_vec4 const mul1 = _mm_mul_ps(mul0, _mm_set1_ps(2.0f)); + glm_vec4 const sub0 = _mm_sub_ps(I, mul1); + return sub0; +} + +GLM_FUNC_QUALIFIER __m128 glm_vec4_refract(glm_vec4 I, glm_vec4 N, glm_vec4 eta) +{ + glm_vec4 const dot0 = glm_vec4_dot(N, I); + glm_vec4 const mul0 = _mm_mul_ps(eta, eta); + glm_vec4 const mul1 = _mm_mul_ps(dot0, dot0); + glm_vec4 const sub0 = _mm_sub_ps(_mm_set1_ps(1.0f), mul0); + glm_vec4 const sub1 = _mm_sub_ps(_mm_set1_ps(1.0f), mul1); + glm_vec4 const mul2 = _mm_mul_ps(sub0, sub1); + + if(_mm_movemask_ps(_mm_cmplt_ss(mul2, _mm_set1_ps(0.0f))) == 0) + return _mm_set1_ps(0.0f); + + glm_vec4 const sqt0 = _mm_sqrt_ps(mul2); + glm_vec4 const mad0 = glm_vec4_fma(eta, dot0, sqt0); + glm_vec4 const mul4 = _mm_mul_ps(mad0, N); + glm_vec4 const mul5 = _mm_mul_ps(eta, I); + glm_vec4 const sub2 = _mm_sub_ps(mul5, mul4); + + return sub2; +} + +#endif//GLM_ARCH & GLM_ARCH_SSE2_BIT |