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