Updated GLM version w/ now standard radians as angles.

includes/glm/detail/intrinsic_geometric.inl

@@ -0,0 +1,147 @@
+///////////////////////////////////////////////////////////////////////////////////
+/// OpenGL Mathematics (glm.g-truc.net)
+///
+/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net)
+/// Permission is hereby granted, free of charge, to any person obtaining a copy
+/// of this software and associated documentation files (the "Software"), to deal
+/// in the Software without restriction, including without limitation the rights
+/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+/// copies of the Software, and to permit persons to whom the Software is
+/// furnished to do so, subject to the following conditions:
+/// 
+/// The above copyright notice and this permission notice shall be included in
+/// all copies or substantial portions of the Software.
+/// 
+/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+/// THE SOFTWARE.
+///
+/// @ref core
+/// @file glm/detail/intrinsic_geometric.inl
+/// @date 2009-05-08 / 2011-06-15
+/// @author Christophe Riccio
+///////////////////////////////////////////////////////////////////////////////////
+
+namespace glm{
+namespace detail{
+
+//length
+GLM_FUNC_QUALIFIER __m128 sse_len_ps(__m128 x)
+{
+	__m128 dot0 = sse_dot_ps(x, x);
+	__m128 sqt0 = _mm_sqrt_ps(dot0);
+	return sqt0;
+}
+
+//distance
+GLM_FUNC_QUALIFIER __m128 sse_dst_ps(__m128 p0, __m128 p1)
+{
+	__m128 sub0 = _mm_sub_ps(p0, p1);
+	__m128 len0 = sse_len_ps(sub0);
+	return len0;
+}
+
+//dot
+GLM_FUNC_QUALIFIER __m128 sse_dot_ps(__m128 v1, __m128 v2)
+{
+
+#	if(GLM_ARCH & GLM_ARCH_AVX)
+		return _mm_dp_ps(v1, v2, 0xff);
+#	else
+		__m128 mul0 = _mm_mul_ps(v1, v2);
+		__m128 swp0 = _mm_shuffle_ps(mul0, mul0, _MM_SHUFFLE(2, 3, 0, 1));
+		__m128 add0 = _mm_add_ps(mul0, swp0);
+		__m128 swp1 = _mm_shuffle_ps(add0, add0, _MM_SHUFFLE(0, 1, 2, 3));
+		__m128 add1 = _mm_add_ps(add0, swp1);
+		return add1;
+#	endif
+}
+
+// SSE1
+GLM_FUNC_QUALIFIER __m128 sse_dot_ss(__m128 v1, __m128 v2)
+{
+	__m128 mul0 = _mm_mul_ps(v1, v2);
+	__m128 mov0 = _mm_movehl_ps(mul0, mul0);
+	__m128 add0 = _mm_add_ps(mov0, mul0);
+	__m128 swp1 = _mm_shuffle_ps(add0, add0, 1);
+	__m128 add1 = _mm_add_ss(add0, swp1);
+	return add1;
+}
+
+//cross
+GLM_FUNC_QUALIFIER __m128 sse_xpd_ps(__m128 v1, __m128 v2)
+{
+	__m128 swp0 = _mm_shuffle_ps(v1, v1, _MM_SHUFFLE(3, 0, 2, 1));
+	__m128 swp1 = _mm_shuffle_ps(v1, v1, _MM_SHUFFLE(3, 1, 0, 2));
+	__m128 swp2 = _mm_shuffle_ps(v2, v2, _MM_SHUFFLE(3, 0, 2, 1));
+	__m128 swp3 = _mm_shuffle_ps(v2, v2, _MM_SHUFFLE(3, 1, 0, 2));
+	__m128 mul0 = _mm_mul_ps(swp0, swp3);
+	__m128 mul1 = _mm_mul_ps(swp1, swp2);
+	__m128 sub0 = _mm_sub_ps(mul0, mul1);
+	return sub0;
+}
+
+//normalize
+GLM_FUNC_QUALIFIER __m128 sse_nrm_ps(__m128 v)
+{
+	__m128 dot0 = sse_dot_ps(v, v);
+	__m128 isr0 = _mm_rsqrt_ps(dot0);
+	__m128 mul0 = _mm_mul_ps(v, isr0);
+	return mul0;
+}
+
+//faceforward
+GLM_FUNC_QUALIFIER __m128 sse_ffd_ps(__m128 N, __m128 I, __m128 Nref)
+{
+	//__m128 dot0 = _mm_dot_ps(v, v);
+	//__m128 neg0 = _mm_neg_ps(N);
+	//__m128 sgn0 = _mm_sgn_ps(dot0);
+	//__m128 mix0 = _mm_mix_ps(N, neg0, sgn0);
+	//return mix0;
+
+	__m128 dot0 = sse_dot_ps(Nref, I);
+	__m128 sgn0 = sse_sgn_ps(dot0);
+	__m128 mul0 = _mm_mul_ps(sgn0, glm::detail::minus_one);
+	__m128 mul1 = _mm_mul_ps(N, mul0);
+	return mul1;
+}
+
+//reflect
+GLM_FUNC_QUALIFIER __m128 sse_rfe_ps(__m128 I, __m128 N)
+{
+	__m128 dot0 = sse_dot_ps(N, I);
+	__m128 mul0 = _mm_mul_ps(N, dot0);
+	__m128 mul1 = _mm_mul_ps(mul0, glm::detail::two);
+	__m128 sub0 = _mm_sub_ps(I, mul1);
+	return sub0;
+}
+
+//refract
+GLM_FUNC_QUALIFIER __m128 sse_rfa_ps(__m128 I, __m128 N, __m128 eta)
+{
+	__m128 dot0 = sse_dot_ps(N, I);
+	__m128 mul0 = _mm_mul_ps(eta, eta);
+	__m128 mul1 = _mm_mul_ps(dot0, dot0);
+	__m128 sub0 = _mm_sub_ps(glm::detail::one, mul0);
+	__m128 sub1 = _mm_sub_ps(glm::detail::one, mul1);
+	__m128 mul2 = _mm_mul_ps(sub0, sub1);
+	
+	if(_mm_movemask_ps(_mm_cmplt_ss(mul2, glm::detail::zero)) == 0)
+		return glm::detail::zero;
+
+	__m128 sqt0 = _mm_sqrt_ps(mul2);
+	__m128 mul3 = _mm_mul_ps(eta, dot0);
+	__m128 add0 = _mm_add_ps(mul3, sqt0);
+	__m128 mul4 = _mm_mul_ps(add0, N);
+	__m128 mul5 = _mm_mul_ps(eta, I);
+	__m128 sub2 = _mm_sub_ps(mul5, mul4);
+
+	return sub2;
+}
+
+}//namespace detail
+}//namespace glm