629 lines
24 KiB
C++
629 lines
24 KiB
C++
/*
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* Copyright 2011-2013 Intel Corporation
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* Modifications Copyright 2014, Blender Foundation.
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*
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* Licensed under the Apache License, Version 2.0(the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __UTIL_SSEF_H__
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#define __UTIL_SSEF_H__
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CCL_NAMESPACE_BEGIN
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#ifdef __KERNEL_SSE2__
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/*! 4-wide SSE float type. */
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struct ssef
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{
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typedef sseb Mask; // mask type
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typedef ssei Int; // int type
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typedef ssef Float; // float type
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enum { size = 4 }; // number of SIMD elements
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union { __m128 m128; float f[4]; int i[4]; }; // data
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////////////////////////////////////////////////////////////////////////////////
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/// Constructors, Assignment & Cast Operators
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////////////////////////////////////////////////////////////////////////////////
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__forceinline ssef () {}
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__forceinline ssef (const ssef& other) { m128 = other.m128; }
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__forceinline ssef& operator=(const ssef& other) { m128 = other.m128; return *this; }
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__forceinline ssef(const __m128 a) : m128(a) {}
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__forceinline operator const __m128&(void) const { return m128; }
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__forceinline operator __m128&(void) { return m128; }
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__forceinline ssef (float a) : m128(_mm_set1_ps(a)) {}
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__forceinline ssef (float a, float b, float c, float d) : m128(_mm_setr_ps(a, b, c, d)) {}
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__forceinline explicit ssef(const __m128i a) : m128(_mm_cvtepi32_ps(a)) {}
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////////////////////////////////////////////////////////////////////////////////
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/// Loads and Stores
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////////////////////////////////////////////////////////////////////////////////
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#if defined(__KERNEL_AVX__)
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static __forceinline ssef broadcast(const void* const a) { return _mm_broadcast_ss((float*)a); }
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#else
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static __forceinline ssef broadcast(const void* const a) { return _mm_set1_ps(*(float*)a); }
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#endif
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////////////////////////////////////////////////////////////////////////////////
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/// Array Access
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////////////////////////////////////////////////////////////////////////////////
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__forceinline const float& operator [](const size_t i) const { assert(i < 4); return f[i]; }
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__forceinline float& operator [](const size_t i) { assert(i < 4); return f[i]; }
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};
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////////////////////////////////////////////////////////////////////////////////
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/// Unary Operators
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////////////////////////////////////////////////////////////////////////////////
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__forceinline const ssef cast (const __m128i& a) { return _mm_castsi128_ps(a); }
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__forceinline const ssef operator +(const ssef& a) { return a; }
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__forceinline const ssef operator -(const ssef& a) { return _mm_xor_ps(a.m128, _mm_castsi128_ps(_mm_set1_epi32(0x80000000))); }
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__forceinline const ssef abs (const ssef& a) { return _mm_and_ps(a.m128, _mm_castsi128_ps(_mm_set1_epi32(0x7fffffff))); }
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#if defined(__KERNEL_SSE41__)
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__forceinline const ssef sign (const ssef& a) { return _mm_blendv_ps(ssef(1.0f), -ssef(1.0f), _mm_cmplt_ps(a,ssef(0.0f))); }
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#endif
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__forceinline const ssef signmsk (const ssef& a) { return _mm_and_ps(a.m128,_mm_castsi128_ps(_mm_set1_epi32(0x80000000))); }
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__forceinline const ssef rcp (const ssef& a) {
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const ssef r = _mm_rcp_ps(a.m128);
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return _mm_sub_ps(_mm_add_ps(r, r), _mm_mul_ps(_mm_mul_ps(r, r), a));
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}
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__forceinline const ssef sqr (const ssef& a) { return _mm_mul_ps(a,a); }
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__forceinline const ssef mm_sqrt(const ssef& a) { return _mm_sqrt_ps(a.m128); }
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__forceinline const ssef rsqrt(const ssef& a) {
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const ssef r = _mm_rsqrt_ps(a.m128);
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return _mm_add_ps(_mm_mul_ps(_mm_set_ps(1.5f, 1.5f, 1.5f, 1.5f), r),
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_mm_mul_ps(_mm_mul_ps(_mm_mul_ps(a, _mm_set_ps(-0.5f, -0.5f, -0.5f, -0.5f)), r), _mm_mul_ps(r, r)));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// Binary Operators
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////////////////////////////////////////////////////////////////////////////////
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__forceinline const ssef operator +(const ssef& a, const ssef& b) { return _mm_add_ps(a.m128, b.m128); }
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__forceinline const ssef operator +(const ssef& a, const float& b) { return a + ssef(b); }
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__forceinline const ssef operator +(const float& a, const ssef& b) { return ssef(a) + b; }
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__forceinline const ssef operator -(const ssef& a, const ssef& b) { return _mm_sub_ps(a.m128, b.m128); }
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__forceinline const ssef operator -(const ssef& a, const float& b) { return a - ssef(b); }
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__forceinline const ssef operator -(const float& a, const ssef& b) { return ssef(a) - b; }
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__forceinline const ssef operator *(const ssef& a, const ssef& b) { return _mm_mul_ps(a.m128, b.m128); }
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__forceinline const ssef operator *(const ssef& a, const float& b) { return a * ssef(b); }
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__forceinline const ssef operator *(const float& a, const ssef& b) { return ssef(a) * b; }
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__forceinline const ssef operator /(const ssef& a, const ssef& b) { return _mm_div_ps(a.m128,b.m128); }
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__forceinline const ssef operator /(const ssef& a, const float& b) { return a/ssef(b); }
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__forceinline const ssef operator /(const float& a, const ssef& b) { return ssef(a)/b; }
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__forceinline const ssef operator^(const ssef& a, const ssef& b) { return _mm_xor_ps(a.m128,b.m128); }
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__forceinline const ssef operator^(const ssef& a, const ssei& b) { return _mm_xor_ps(a.m128,_mm_castsi128_ps(b.m128)); }
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__forceinline const ssef operator&(const ssef& a, const ssef& b) { return _mm_and_ps(a.m128,b.m128); }
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__forceinline const ssef operator&(const ssef& a, const ssei& b) { return _mm_and_ps(a.m128,_mm_castsi128_ps(b.m128)); }
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__forceinline const ssef operator|(const ssef& a, const ssef& b) { return _mm_or_ps(a.m128,b.m128); }
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__forceinline const ssef operator|(const ssef& a, const ssei& b) { return _mm_or_ps(a.m128,_mm_castsi128_ps(b.m128)); }
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__forceinline const ssef andnot(const ssef& a, const ssef& b) { return _mm_andnot_ps(a.m128,b.m128); }
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__forceinline const ssef min(const ssef& a, const ssef& b) { return _mm_min_ps(a.m128,b.m128); }
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__forceinline const ssef min(const ssef& a, const float& b) { return _mm_min_ps(a.m128,ssef(b)); }
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__forceinline const ssef min(const float& a, const ssef& b) { return _mm_min_ps(ssef(a),b.m128); }
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__forceinline const ssef max(const ssef& a, const ssef& b) { return _mm_max_ps(a.m128,b.m128); }
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__forceinline const ssef max(const ssef& a, const float& b) { return _mm_max_ps(a.m128,ssef(b)); }
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__forceinline const ssef max(const float& a, const ssef& b) { return _mm_max_ps(ssef(a),b.m128); }
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#if defined(__KERNEL_SSE41__)
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__forceinline ssef mini(const ssef& a, const ssef& b) {
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const ssei ai = _mm_castps_si128(a);
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const ssei bi = _mm_castps_si128(b);
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const ssei ci = _mm_min_epi32(ai,bi);
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return _mm_castsi128_ps(ci);
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}
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#endif
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#if defined(__KERNEL_SSE41__)
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__forceinline ssef maxi(const ssef& a, const ssef& b) {
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const ssei ai = _mm_castps_si128(a);
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const ssei bi = _mm_castps_si128(b);
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const ssei ci = _mm_max_epi32(ai,bi);
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return _mm_castsi128_ps(ci);
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}
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#endif
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////////////////////////////////////////////////////////////////////////////////
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/// Ternary Operators
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////////////////////////////////////////////////////////////////////////////////
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#if defined(__KERNEL_AVX2__)
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__forceinline const ssef madd (const ssef& a, const ssef& b, const ssef& c) { return _mm_fmadd_ps(a,b,c); }
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__forceinline const ssef msub (const ssef& a, const ssef& b, const ssef& c) { return _mm_fmsub_ps(a,b,c); }
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__forceinline const ssef nmadd(const ssef& a, const ssef& b, const ssef& c) { return _mm_fnmadd_ps(a,b,c); }
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__forceinline const ssef nmsub(const ssef& a, const ssef& b, const ssef& c) { return _mm_fnmsub_ps(a,b,c); }
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#else
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__forceinline const ssef madd (const ssef& a, const ssef& b, const ssef& c) { return a*b+c; }
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__forceinline const ssef msub (const ssef& a, const ssef& b, const ssef& c) { return a*b-c; }
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__forceinline const ssef nmadd(const ssef& a, const ssef& b, const ssef& c) { return c-a*b;}
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__forceinline const ssef nmsub(const ssef& a, const ssef& b, const ssef& c) { return -a*b-c; }
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#endif
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////////////////////////////////////////////////////////////////////////////////
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/// Assignment Operators
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////////////////////////////////////////////////////////////////////////////////
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__forceinline ssef& operator +=(ssef& a, const ssef& b) { return a = a + b; }
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__forceinline ssef& operator +=(ssef& a, const float& b) { return a = a + b; }
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__forceinline ssef& operator -=(ssef& a, const ssef& b) { return a = a - b; }
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__forceinline ssef& operator -=(ssef& a, const float& b) { return a = a - b; }
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__forceinline ssef& operator *=(ssef& a, const ssef& b) { return a = a * b; }
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__forceinline ssef& operator *=(ssef& a, const float& b) { return a = a * b; }
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__forceinline ssef& operator /=(ssef& a, const ssef& b) { return a = a / b; }
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__forceinline ssef& operator /=(ssef& a, const float& b) { return a = a / b; }
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////////////////////////////////////////////////////////////////////////////////
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/// Comparison Operators + Select
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////////////////////////////////////////////////////////////////////////////////
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__forceinline const sseb operator ==(const ssef& a, const ssef& b) { return _mm_cmpeq_ps(a.m128, b.m128); }
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__forceinline const sseb operator ==(const ssef& a, const float& b) { return a == ssef(b); }
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__forceinline const sseb operator ==(const float& a, const ssef& b) { return ssef(a) == b; }
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__forceinline const sseb operator !=(const ssef& a, const ssef& b) { return _mm_cmpneq_ps(a.m128, b.m128); }
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__forceinline const sseb operator !=(const ssef& a, const float& b) { return a != ssef(b); }
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__forceinline const sseb operator !=(const float& a, const ssef& b) { return ssef(a) != b; }
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__forceinline const sseb operator <(const ssef& a, const ssef& b) { return _mm_cmplt_ps(a.m128, b.m128); }
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__forceinline const sseb operator <(const ssef& a, const float& b) { return a < ssef(b); }
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__forceinline const sseb operator <(const float& a, const ssef& b) { return ssef(a) < b; }
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__forceinline const sseb operator >=(const ssef& a, const ssef& b) { return _mm_cmpnlt_ps(a.m128, b.m128); }
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__forceinline const sseb operator >=(const ssef& a, const float& b) { return a >= ssef(b); }
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__forceinline const sseb operator >=(const float& a, const ssef& b) { return ssef(a) >= b; }
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__forceinline const sseb operator >(const ssef& a, const ssef& b) { return _mm_cmpnle_ps(a.m128, b.m128); }
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__forceinline const sseb operator >(const ssef& a, const float& b) { return a > ssef(b); }
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__forceinline const sseb operator >(const float& a, const ssef& b) { return ssef(a) > b; }
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__forceinline const sseb operator <=(const ssef& a, const ssef& b) { return _mm_cmple_ps(a.m128, b.m128); }
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__forceinline const sseb operator <=(const ssef& a, const float& b) { return a <= ssef(b); }
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__forceinline const sseb operator <=(const float& a, const ssef& b) { return ssef(a) <= b; }
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__forceinline const ssef select(const sseb& m, const ssef& t, const ssef& f) {
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#ifdef __KERNEL_SSE41__
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return _mm_blendv_ps(f, t, m);
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#else
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return _mm_or_ps(_mm_and_ps(m, t), _mm_andnot_ps(m, f));
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#endif
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}
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__forceinline const ssef select(const ssef& m, const ssef& t, const ssef& f) {
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#ifdef __KERNEL_SSE41__
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return _mm_blendv_ps(f, t, m);
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#else
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return _mm_or_ps(_mm_and_ps(m, t), _mm_andnot_ps(m, f));
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#endif
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}
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__forceinline const ssef select(const int mask, const ssef& t, const ssef& f) {
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#if defined(__KERNEL_SSE41__) && ((!defined(__clang__) && !defined(_MSC_VER)) || defined(__INTEL_COMPILER))
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return _mm_blend_ps(f, t, mask);
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#else
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return select(sseb(mask),t,f);
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#endif
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}
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////////////////////////////////////////////////////////////////////////////////
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/// Rounding Functions
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////////////////////////////////////////////////////////////////////////////////
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#if defined(__KERNEL_SSE41__)
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__forceinline const ssef round_even(const ssef& a) { return _mm_round_ps(a, _MM_FROUND_TO_NEAREST_INT); }
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__forceinline const ssef round_down(const ssef& a) { return _mm_round_ps(a, _MM_FROUND_TO_NEG_INF ); }
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__forceinline const ssef round_up (const ssef& a) { return _mm_round_ps(a, _MM_FROUND_TO_POS_INF ); }
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__forceinline const ssef round_zero(const ssef& a) { return _mm_round_ps(a, _MM_FROUND_TO_ZERO ); }
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__forceinline const ssef floor (const ssef& a) { return _mm_round_ps(a, _MM_FROUND_TO_NEG_INF ); }
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__forceinline const ssef ceil (const ssef& a) { return _mm_round_ps(a, _MM_FROUND_TO_POS_INF ); }
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#endif
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__forceinline ssei truncatei(const ssef& a) {
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return _mm_cvttps_epi32(a.m128);
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}
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__forceinline ssei floori(const ssef& a) {
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#if defined(__KERNEL_SSE41__)
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return ssei(floor(a));
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#else
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return ssei(a-ssef(0.5f));
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#endif
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}
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////////////////////////////////////////////////////////////////////////////////
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/// Movement/Shifting/Shuffling Functions
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////////////////////////////////////////////////////////////////////////////////
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__forceinline ssef unpacklo(const ssef& a, const ssef& b) { return _mm_unpacklo_ps(a.m128, b.m128); }
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__forceinline ssef unpackhi(const ssef& a, const ssef& b) { return _mm_unpackhi_ps(a.m128, b.m128); }
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template<size_t i0, size_t i1, size_t i2, size_t i3> __forceinline const ssef shuffle(const ssef& b) {
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return _mm_castsi128_ps(_mm_shuffle_epi32(_mm_castps_si128(b), _MM_SHUFFLE(i3, i2, i1, i0)));
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}
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template<> __forceinline const ssef shuffle<0, 1, 0, 1>(const ssef& a) {
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return _mm_movelh_ps(a, a);
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}
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template<> __forceinline const ssef shuffle<2, 3, 2, 3>(const ssef& a) {
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return _mm_movehl_ps(a, a);
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}
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template<size_t i0, size_t i1, size_t i2, size_t i3> __forceinline const ssef shuffle(const ssef& a, const ssef& b) {
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return _mm_shuffle_ps(a, b, _MM_SHUFFLE(i3, i2, i1, i0));
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}
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template<size_t i0> __forceinline const ssef shuffle(const ssef& a, const ssef& b) {
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return _mm_shuffle_ps(a, b, _MM_SHUFFLE(i0, i0, i0, i0));
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}
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template<> __forceinline const ssef shuffle<0, 1, 0, 1>(const ssef& a, const ssef& b) {
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return _mm_movelh_ps(a, b);
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}
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template<> __forceinline const ssef shuffle<2, 3, 2, 3>(const ssef& a, const ssef& b) {
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return _mm_movehl_ps(b, a);
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}
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#if defined(__KERNEL_SSSE3__)
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__forceinline const ssef shuffle8(const ssef& a, const ssei& shuf) {
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return _mm_castsi128_ps(_mm_shuffle_epi8(_mm_castps_si128(a), shuf));
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}
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#endif
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#if defined(__KERNEL_SSE3__)
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template<> __forceinline const ssef shuffle<0, 0, 2, 2>(const ssef& b) { return _mm_moveldup_ps(b); }
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template<> __forceinline const ssef shuffle<1, 1, 3, 3>(const ssef& b) { return _mm_movehdup_ps(b); }
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#endif
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template<size_t i0> __forceinline const ssef shuffle(const ssef& b) {
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return shuffle<i0,i0,i0,i0>(b);
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}
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#if defined(__KERNEL_AVX__)
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__forceinline const ssef shuffle(const ssef& a, const ssei& shuf) {
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return _mm_permutevar_ps(a, shuf);
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}
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#endif
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template<size_t i> __forceinline float extract (const ssef& a) { return _mm_cvtss_f32(shuffle<i,i,i,i>(a)); }
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template<> __forceinline float extract<0>(const ssef& a) { return _mm_cvtss_f32(a); }
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#if defined(__KERNEL_SSE41__)
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template<size_t dst, size_t src, size_t clr> __forceinline const ssef insert(const ssef& a, const ssef& b) { return _mm_insert_ps(a, b,(dst << 4) |(src << 6) | clr); }
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template<size_t dst, size_t src> __forceinline const ssef insert(const ssef& a, const ssef& b) { return insert<dst, src, 0>(a, b); }
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template<size_t dst> __forceinline const ssef insert(const ssef& a, const float b) { return insert<dst, 0>(a, _mm_set_ss(b)); }
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#else
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template<size_t dst> __forceinline const ssef insert(const ssef& a, const float b) { ssef c = a; c[dst] = b; return c; }
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#endif
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////////////////////////////////////////////////////////////////////////////////
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/// Transpose
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////////////////////////////////////////////////////////////////////////////////
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__forceinline void transpose(const ssef& r0, const ssef& r1, const ssef& r2, const ssef& r3, ssef& c0, ssef& c1, ssef& c2, ssef& c3)
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{
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ssef l02 = unpacklo(r0,r2);
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ssef h02 = unpackhi(r0,r2);
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ssef l13 = unpacklo(r1,r3);
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ssef h13 = unpackhi(r1,r3);
|
|
c0 = unpacklo(l02,l13);
|
|
c1 = unpackhi(l02,l13);
|
|
c2 = unpacklo(h02,h13);
|
|
c3 = unpackhi(h02,h13);
|
|
}
|
|
|
|
__forceinline void transpose(const ssef& r0, const ssef& r1, const ssef& r2, const ssef& r3, ssef& c0, ssef& c1, ssef& c2)
|
|
{
|
|
ssef l02 = unpacklo(r0,r2);
|
|
ssef h02 = unpackhi(r0,r2);
|
|
ssef l13 = unpacklo(r1,r3);
|
|
ssef h13 = unpackhi(r1,r3);
|
|
c0 = unpacklo(l02,l13);
|
|
c1 = unpackhi(l02,l13);
|
|
c2 = unpacklo(h02,h13);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// Reductions
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
__forceinline const ssef vreduce_min(const ssef& v) { ssef h = min(shuffle<1,0,3,2>(v),v); return min(shuffle<2,3,0,1>(h),h); }
|
|
__forceinline const ssef vreduce_max(const ssef& v) { ssef h = max(shuffle<1,0,3,2>(v),v); return max(shuffle<2,3,0,1>(h),h); }
|
|
__forceinline const ssef vreduce_add(const ssef& v) { ssef h = shuffle<1,0,3,2>(v) + v ; return shuffle<2,3,0,1>(h) + h ; }
|
|
|
|
__forceinline float reduce_min(const ssef& v) { return _mm_cvtss_f32(vreduce_min(v)); }
|
|
__forceinline float reduce_max(const ssef& v) { return _mm_cvtss_f32(vreduce_max(v)); }
|
|
__forceinline float reduce_add(const ssef& v) { return _mm_cvtss_f32(vreduce_add(v)); }
|
|
|
|
__forceinline size_t select_min(const ssef& v) { return __bsf(movemask(v == vreduce_min(v))); }
|
|
__forceinline size_t select_max(const ssef& v) { return __bsf(movemask(v == vreduce_max(v))); }
|
|
|
|
__forceinline size_t select_min(const sseb& valid, const ssef& v) { const ssef a = select(valid,v,ssef(pos_inf)); return __bsf(movemask(valid &(a == vreduce_min(a)))); }
|
|
__forceinline size_t select_max(const sseb& valid, const ssef& v) { const ssef a = select(valid,v,ssef(neg_inf)); return __bsf(movemask(valid &(a == vreduce_max(a)))); }
|
|
|
|
__forceinline size_t movemask( const ssef& a ) { return _mm_movemask_ps(a); }
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// Memory load and store operations
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
__forceinline ssef load4f(const float4& a) {
|
|
#ifdef __KERNEL_WITH_SSE_ALIGN__
|
|
return _mm_load_ps(&a.x);
|
|
#else
|
|
return _mm_loadu_ps(&a.x);
|
|
#endif
|
|
}
|
|
|
|
__forceinline ssef load4f(const float3& a) {
|
|
#ifdef __KERNEL_WITH_SSE_ALIGN__
|
|
return _mm_load_ps(&a.x);
|
|
#else
|
|
return _mm_loadu_ps(&a.x);
|
|
#endif
|
|
}
|
|
|
|
__forceinline ssef load4f(const void* const a) {
|
|
return _mm_load_ps((float*)a);
|
|
}
|
|
|
|
__forceinline ssef load1f_first(const float a) {
|
|
return _mm_set_ss(a);
|
|
}
|
|
|
|
__forceinline void store4f(void* ptr, const ssef& v) {
|
|
_mm_store_ps((float*)ptr,v);
|
|
}
|
|
|
|
__forceinline ssef loadu4f(const void* const a) {
|
|
return _mm_loadu_ps((float*)a);
|
|
}
|
|
|
|
__forceinline void storeu4f(void* ptr, const ssef& v) {
|
|
_mm_storeu_ps((float*)ptr,v);
|
|
}
|
|
|
|
__forceinline void store4f(const sseb& mask, void* ptr, const ssef& f) {
|
|
#if defined(__KERNEL_AVX__)
|
|
_mm_maskstore_ps((float*)ptr,(__m128i)mask,f);
|
|
#else
|
|
*(ssef*)ptr = select(mask,f,*(ssef*)ptr);
|
|
#endif
|
|
}
|
|
|
|
__forceinline ssef load4f_nt(void* ptr) {
|
|
#if defined(__KERNEL_SSE41__)
|
|
return _mm_castsi128_ps(_mm_stream_load_si128((__m128i*)ptr));
|
|
#else
|
|
return _mm_load_ps((float*)ptr);
|
|
#endif
|
|
}
|
|
|
|
__forceinline void store4f_nt(void* ptr, const ssef& v) {
|
|
#if defined(__KERNEL_SSE41__)
|
|
_mm_stream_ps((float*)ptr,v);
|
|
#else
|
|
_mm_store_ps((float*)ptr,v);
|
|
#endif
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// Euclidian Space Operators
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
__forceinline float dot(const ssef& a, const ssef& b) {
|
|
return reduce_add(a*b);
|
|
}
|
|
|
|
/* calculate shuffled cross product, useful when order of components does not matter */
|
|
__forceinline ssef cross_zxy(const ssef& a, const ssef& b)
|
|
{
|
|
const ssef a0 = a;
|
|
const ssef b0 = shuffle<1,2,0,3>(b);
|
|
const ssef a1 = shuffle<1,2,0,3>(a);
|
|
const ssef b1 = b;
|
|
return msub(a0,b0,a1*b1);
|
|
}
|
|
|
|
__forceinline ssef cross(const ssef& a, const ssef& b)
|
|
{
|
|
return shuffle<1,2,0,3>(cross_zxy(a, b));
|
|
}
|
|
|
|
ccl_device_inline const ssef dot3_splat(const ssef& a, const ssef& b)
|
|
{
|
|
#ifdef __KERNEL_SSE41__
|
|
return _mm_dp_ps(a.m128, b.m128, 0x7f);
|
|
#else
|
|
ssef t = a * b;
|
|
return ssef(((float*)&t)[0] + ((float*)&t)[1] + ((float*)&t)[2]);
|
|
#endif
|
|
}
|
|
|
|
/* squared length taking only specified axes into account */
|
|
template<size_t X, size_t Y, size_t Z, size_t W>
|
|
ccl_device_inline float len_squared(const ssef& a)
|
|
{
|
|
#ifndef __KERNEL_SSE41__
|
|
float4& t = (float4 &)a;
|
|
return (X ? t.x * t.x : 0.0f) + (Y ? t.y * t.y : 0.0f) + (Z ? t.z * t.z : 0.0f) + (W ? t.w * t.w : 0.0f);
|
|
#else
|
|
return extract<0>(ssef(_mm_dp_ps(a.m128, a.m128, (X << 4) | (Y << 5) | (Z << 6) | (W << 7) | 0xf)));
|
|
#endif
|
|
}
|
|
|
|
ccl_device_inline float dot3(const ssef& a, const ssef& b)
|
|
{
|
|
#ifdef __KERNEL_SSE41__
|
|
return extract<0>(ssef(_mm_dp_ps(a.m128, b.m128, 0x7f)));
|
|
#else
|
|
ssef t = a * b;
|
|
return ((float*)&t)[0] + ((float*)&t)[1] + ((float*)&t)[2];
|
|
#endif
|
|
}
|
|
|
|
ccl_device_inline const ssef len3_squared_splat(const ssef& a)
|
|
{
|
|
return dot3_splat(a, a);
|
|
}
|
|
|
|
ccl_device_inline float len3_squared(const ssef& a)
|
|
{
|
|
return dot3(a, a);
|
|
}
|
|
|
|
ccl_device_inline float len3(const ssef& a)
|
|
{
|
|
return extract<0>(mm_sqrt(dot3_splat(a, a)));
|
|
}
|
|
|
|
/* SSE shuffle utility functions */
|
|
|
|
#ifdef __KERNEL_SSSE3__
|
|
|
|
/* faster version for SSSE3 */
|
|
typedef ssei shuffle_swap_t;
|
|
|
|
ccl_device_inline const shuffle_swap_t shuffle_swap_identity(void)
|
|
{
|
|
return _mm_set_epi8(15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0);
|
|
}
|
|
|
|
ccl_device_inline const shuffle_swap_t shuffle_swap_swap(void)
|
|
{
|
|
return _mm_set_epi8(7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8);
|
|
}
|
|
|
|
ccl_device_inline const ssef shuffle_swap(const ssef& a, const shuffle_swap_t& shuf)
|
|
{
|
|
return cast(_mm_shuffle_epi8(cast(a), shuf));
|
|
}
|
|
|
|
#else
|
|
|
|
/* somewhat slower version for SSE2 */
|
|
typedef int shuffle_swap_t;
|
|
|
|
ccl_device_inline const shuffle_swap_t shuffle_swap_identity(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
ccl_device_inline const shuffle_swap_t shuffle_swap_swap(void)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
ccl_device_inline const ssef shuffle_swap(const ssef& a, shuffle_swap_t shuf)
|
|
{
|
|
/* shuffle value must be a constant, so we need to branch */
|
|
if(shuf)
|
|
return ssef(_mm_shuffle_ps(a.m128, a.m128, _MM_SHUFFLE(1, 0, 3, 2)));
|
|
else
|
|
return ssef(_mm_shuffle_ps(a.m128, a.m128, _MM_SHUFFLE(3, 2, 1, 0)));
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifdef __KERNEL_SSE41__
|
|
|
|
ccl_device_inline void gen_idirsplat_swap(const ssef &pn, const shuffle_swap_t &shuf_identity, const shuffle_swap_t &shuf_swap,
|
|
const float3& idir, ssef idirsplat[3], shuffle_swap_t shufflexyz[3])
|
|
{
|
|
const __m128 idirsplat_raw[] = { _mm_set_ps1(idir.x), _mm_set_ps1(idir.y), _mm_set_ps1(idir.z) };
|
|
idirsplat[0] = _mm_xor_ps(idirsplat_raw[0], pn);
|
|
idirsplat[1] = _mm_xor_ps(idirsplat_raw[1], pn);
|
|
idirsplat[2] = _mm_xor_ps(idirsplat_raw[2], pn);
|
|
|
|
const ssef signmask = cast(ssei(0x80000000));
|
|
const ssef shuf_identity_f = cast(shuf_identity);
|
|
const ssef shuf_swap_f = cast(shuf_swap);
|
|
|
|
shufflexyz[0] = _mm_castps_si128(_mm_blendv_ps(shuf_identity_f, shuf_swap_f, _mm_and_ps(idirsplat_raw[0], signmask)));
|
|
shufflexyz[1] = _mm_castps_si128(_mm_blendv_ps(shuf_identity_f, shuf_swap_f, _mm_and_ps(idirsplat_raw[1], signmask)));
|
|
shufflexyz[2] = _mm_castps_si128(_mm_blendv_ps(shuf_identity_f, shuf_swap_f, _mm_and_ps(idirsplat_raw[2], signmask)));
|
|
}
|
|
|
|
#else
|
|
|
|
ccl_device_inline void gen_idirsplat_swap(const ssef &pn, const shuffle_swap_t &shuf_identity, const shuffle_swap_t &shuf_swap,
|
|
const float3& idir, ssef idirsplat[3], shuffle_swap_t shufflexyz[3])
|
|
{
|
|
idirsplat[0] = ssef(idir.x) ^ pn;
|
|
idirsplat[1] = ssef(idir.y) ^ pn;
|
|
idirsplat[2] = ssef(idir.z) ^ pn;
|
|
|
|
shufflexyz[0] = (idir.x >= 0)? shuf_identity: shuf_swap;
|
|
shufflexyz[1] = (idir.y >= 0)? shuf_identity: shuf_swap;
|
|
shufflexyz[2] = (idir.z >= 0)? shuf_identity: shuf_swap;
|
|
}
|
|
|
|
#endif
|
|
|
|
ccl_device_inline const ssef uint32_to_float(const ssei &in)
|
|
{
|
|
ssei a = _mm_srli_epi32(in, 16);
|
|
ssei b = _mm_and_si128(in, _mm_set1_epi32(0x0000ffff));
|
|
ssei c = _mm_or_si128(a, _mm_set1_epi32(0x53000000));
|
|
ssef d = _mm_cvtepi32_ps(b);
|
|
ssef e = _mm_sub_ps(_mm_castsi128_ps(c), _mm_castsi128_ps(_mm_set1_epi32(0x53000000)));
|
|
return _mm_add_ps(e, d);
|
|
}
|
|
|
|
template<size_t S1, size_t S2, size_t S3, size_t S4>
|
|
ccl_device_inline const ssef set_sign_bit(const ssef &a)
|
|
{
|
|
return a ^ cast(ssei(S1 << 31, S2 << 31, S3 << 31, S4 << 31));
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// Debug Functions
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
ccl_device_inline void print_ssef(const char *label, const ssef &a)
|
|
{
|
|
printf("%s: %.8f %.8f %.8f %.8f\n",
|
|
label,
|
|
(double)a[0],
|
|
(double)a[1],
|
|
(double)a[2],
|
|
(double)a[3]);
|
|
}
|
|
|
|
#endif
|
|
|
|
CCL_NAMESPACE_END
|
|
|
|
#endif
|
|
|