forked from bartvdbraak/blender
242 lines
8.7 KiB
C++
242 lines
8.7 KiB
C++
/*
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* Copyright 2016 Intel Corporation
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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_AVXF_H__
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#define __UTIL_AVXF_H__
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CCL_NAMESPACE_BEGIN
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struct avxb;
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struct avxf
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{
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typedef avxf Float;
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enum { size = 8 }; /* Number of SIMD elements. */
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union {
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__m256 m256;
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float f[8];
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int i[8];
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};
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__forceinline avxf () {}
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__forceinline avxf (const avxf& other) { m256 = other.m256; }
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__forceinline avxf& operator=(const avxf& other) { m256 = other.m256; return *this; }
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__forceinline avxf(const __m256 a) : m256(a) {}
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__forceinline avxf(const __m256i a) : m256(_mm256_castsi256_ps (a)) {}
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__forceinline operator const __m256&() const { return m256; }
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__forceinline operator __m256&() { return m256; }
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__forceinline avxf (float a) : m256(_mm256_set1_ps(a)) {}
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__forceinline avxf(float high32x4, float low32x4) :
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m256(_mm256_set_ps(high32x4, high32x4, high32x4, high32x4, low32x4, low32x4, low32x4, low32x4)) {}
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__forceinline avxf(float a3, float a2, float a1, float a0) :
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m256(_mm256_set_ps(a3, a2, a1, a0, a3, a2, a1, a0)) {}
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__forceinline avxf(float a7, float a6, float a5, float a4, float a3, float a2, float a1, float a0) :
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m256(_mm256_set_ps(a7, a6, a5, a4, a3, a2, a1, a0)) {}
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__forceinline avxf(float3 a) :
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m256(_mm256_set_ps(a.w, a.z, a.y, a.x, a.w, a.z, a.y, a.x)) {}
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__forceinline avxf(int a3, int a2, int a1, int a0)
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{
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const __m256i foo = _mm256_set_epi32(a3, a2, a1, a0, a3, a2, a1, a0);
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m256 = _mm256_castsi256_ps(foo);
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}
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__forceinline avxf(int a7, int a6, int a5, int a4, int a3, int a2, int a1, int a0)
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{
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const __m256i foo = _mm256_set_epi32(a7, a6, a5, a4, a3, a2, a1, a0);
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m256 = _mm256_castsi256_ps(foo);
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}
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__forceinline avxf(__m128 a, __m128 b)
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{
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const __m256 foo = _mm256_castps128_ps256(a);
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m256 = _mm256_insertf128_ps(foo, b, 1);
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}
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__forceinline const float& operator [](const size_t i) const { assert(i < 8); return f[i]; }
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__forceinline float& operator [](const size_t i) { assert(i < 8); return f[i]; }
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};
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__forceinline avxf cross(const avxf& a, const avxf& b)
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{
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avxf r(0.0, a[4]*b[5] - a[5]*b[4], a[6]*b[4] - a[4]*b[6], a[5]*b[6] - a[6]*b[5],
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0.0, a[0]*b[1] - a[1]*b[0], a[2]*b[0] - a[0]*b[2], a[1]*b[2] - a[2]*b[1]);
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return r;
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}
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__forceinline void dot3(const avxf& a, const avxf& b, float &den, float &den2)
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{
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const avxf t = _mm256_mul_ps(a.m256, b.m256);
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den = ((float*)&t)[0] + ((float*)&t)[1] + ((float*)&t)[2];
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den2 = ((float*)&t)[4] + ((float*)&t)[5] + ((float*)&t)[6];
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}
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////////////////////////////////////////////////////////////////////////////////
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/// Unary Operators
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////////////////////////////////////////////////////////////////////////////////
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__forceinline const avxf mm256_sqrt(const avxf& a) { return _mm256_sqrt_ps(a.m256); }
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////////////////////////////////////////////////////////////////////////////////
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/// Binary Operators
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////////////////////////////////////////////////////////////////////////////////
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__forceinline const avxf operator +(const avxf& a, const avxf& b) { return _mm256_add_ps(a.m256, b.m256); }
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__forceinline const avxf operator +(const avxf& a, const float& b) { return a + avxf(b); }
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__forceinline const avxf operator +(const float& a, const avxf& b) { return avxf(a) + b; }
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__forceinline const avxf operator -(const avxf& a, const avxf& b) { return _mm256_sub_ps(a.m256, b.m256); }
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__forceinline const avxf operator -(const avxf& a, const float& b) { return a - avxf(b); }
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__forceinline const avxf operator -(const float& a, const avxf& b) { return avxf(a) - b; }
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__forceinline const avxf operator *(const avxf& a, const avxf& b) { return _mm256_mul_ps(a.m256, b.m256); }
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__forceinline const avxf operator *(const avxf& a, const float& b) { return a * avxf(b); }
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__forceinline const avxf operator *(const float& a, const avxf& b) { return avxf(a) * b; }
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__forceinline const avxf operator /(const avxf& a, const avxf& b) { return _mm256_div_ps(a.m256,b.m256); }
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__forceinline const avxf operator /(const avxf& a, const float& b) { return a/avxf(b); }
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__forceinline const avxf operator /(const float& a, const avxf& b) { return avxf(a)/b; }
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__forceinline const avxf operator|(const avxf& a, const avxf& b) { return _mm256_or_ps(a.m256,b.m256); }
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__forceinline const avxf operator^(const avxf& a, const avxf& b) { return _mm256_xor_ps(a.m256,b.m256); }
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__forceinline const avxf operator&(const avxf& a, const avxf& b) { return _mm256_and_ps(a.m256,b.m256); }
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__forceinline const avxf max(const avxf& a, const avxf& b) { return _mm256_max_ps(a.m256, b.m256); }
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__forceinline const avxf min(const avxf& a, const avxf& b) { return _mm256_min_ps(a.m256, b.m256); }
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////////////////////////////////////////////////////////////////////////////////
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/// Movement/Shifting/Shuffling Functions
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////////////////////////////////////////////////////////////////////////////////
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__forceinline const avxf shuffle(const avxf& a, const __m256i &shuf) {
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return _mm256_permutevar_ps(a, shuf);
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}
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template<int i0, int i1, int i2, int i3, int i4, int i5, int i6, int i7> __forceinline const avxf shuffle(const avxf& a) {
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return _mm256_permutevar_ps(a, _mm256_set_epi32( i7,i6,i5,i4 ,i3,i2,i1,i0));
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}
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template<size_t i0, size_t i1, size_t i2, size_t i3> __forceinline const avxf shuffle(const avxf& a, const avxf& b) {
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return _mm256_shuffle_ps(a, b, _MM_SHUFFLE(i3, i2, i1, i0));
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}
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template<size_t i0, size_t i1, size_t i2, size_t i3> __forceinline const avxf shuffle(const avxf& a) {
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return shuffle<i0,i1,i2,i3>(a,a);
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}
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template<size_t i0> __forceinline const avxf shuffle(const avxf& a, const avxf& b) {
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return shuffle<i0,i0,i0,i0>(a, b);
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}
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template<size_t i0> __forceinline const avxf shuffle(const avxf& a) {
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return shuffle<i0>(a,a);
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}
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template<int i0, int i1, int i2, int i3, int i4, int i5, int i6, int i7> __forceinline const avxf permute(const avxf& a) {
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#ifdef __KERNEL_AVX2__
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return _mm256_permutevar8x32_ps(a,_mm256_set_epi32( i7,i6,i5,i4 ,i3,i2,i1,i0));
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#else
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float temp[8];
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_mm256_storeu_ps((float*)&temp, a);
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return avxf(temp[i7], temp[i6], temp[i5], temp[i4], temp[i3], temp[i2], temp[i1], temp[i0]);
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#endif
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}
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template<int S0, int S1, int S2, int S3,int S4,int S5,int S6, int S7>
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ccl_device_inline const avxf set_sign_bit(const avxf &a)
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{
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return a ^ avxf(S7 << 31, S6 << 31, S5 << 31, S4 << 31, S3 << 31,S2 << 31,S1 << 31,S0 << 31);
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}
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template<size_t S0, size_t S1, size_t S2, size_t S3,size_t S4,size_t S5,size_t S6, size_t S7>
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ccl_device_inline const avxf blend(const avxf &a, const avxf &b)
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{
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return _mm256_blend_ps(a,b,S7 << 0 | S6 << 1 | S5 << 2 | S4 << 3 | S3 << 4 | S2 << 5 | S1 << 6 | S0 << 7);
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}
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template<size_t S0, size_t S1, size_t S2, size_t S3 >
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ccl_device_inline const avxf blend(const avxf &a, const avxf &b)
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{
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return blend<S0,S1,S2,S3,S0,S1,S2,S3>(a,b);
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}
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//#if defined(__KERNEL_SSE41__)
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__forceinline avxf maxi(const avxf& a, const avxf& b) {
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const avxf ci = _mm256_max_ps(a, b);
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return ci;
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}
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__forceinline avxf mini(const avxf& a, const avxf& b) {
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const avxf ci = _mm256_min_ps(a, b);
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return 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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__forceinline const avxf madd (const avxf& a, const avxf& b, const avxf& c) {
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#ifdef __KERNEL_AVX2__
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return _mm256_fmadd_ps(a,b,c);
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#else
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return c+(a*b);
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#endif
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}
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__forceinline const avxf nmadd(const avxf& a, const avxf& b, const avxf& c) {
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#ifdef __KERNEL_AVX2__
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return _mm256_fnmadd_ps(a, b, c);
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#else
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return c-(a*b);
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#endif
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}
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__forceinline const avxf msub(const avxf& a, const avxf& b, const avxf& c) {
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#ifdef __KERNEL_AVX2__
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return _mm256_fmsub_ps(a, b, c);
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#else
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return (a*b) - c;
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#endif
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}
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////////////////////////////////////////////////////////////////////////////////
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/// Comparison Operators
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////////////////////////////////////////////////////////////////////////////////
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__forceinline const avxb operator <=(const avxf& a, const avxf& b) {
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return _mm256_cmp_ps(a.m256, b.m256, _CMP_LE_OS);
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}
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#endif
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#ifndef _mm256_set_m128
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# define _mm256_set_m128(/* __m128 */ hi, /* __m128 */ lo) \
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_mm256_insertf128_ps(_mm256_castps128_ps256(lo), (hi), 0x1)
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#endif
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#define _mm256_loadu2_m128(/* float const* */ hiaddr, /* float const* */ loaddr) \
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_mm256_set_m128(_mm_loadu_ps(hiaddr), _mm_loadu_ps(loaddr))
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CCL_NAMESPACE_END
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