forked from bartvdbraak/blender
542 lines
15 KiB
C++
542 lines
15 KiB
C++
/*
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* Copyright 2011-2017 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_MATH_FLOAT4_H__
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#define __UTIL_MATH_FLOAT4_H__
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#ifndef __UTIL_MATH_H__
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# error "Do not include this file directly, include util_types.h instead."
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#endif
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CCL_NAMESPACE_BEGIN
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/*******************************************************************************
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* Declaration.
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*/
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#ifndef __KERNEL_OPENCL__
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ccl_device_inline float4 operator-(const float4 &a);
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ccl_device_inline float4 operator*(const float4 &a, const float4 &b);
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ccl_device_inline float4 operator*(const float4 &a, float f);
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ccl_device_inline float4 operator*(float f, const float4 &a);
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ccl_device_inline float4 operator/(const float4 &a, float f);
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ccl_device_inline float4 operator/(const float4 &a, const float4 &b);
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ccl_device_inline float4 operator+(const float4 &a, const float f);
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ccl_device_inline float4 operator+(const float4 &a, const float4 &b);
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ccl_device_inline float4 operator-(const float4 &a, const float f);
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ccl_device_inline float4 operator-(const float4 &a, const float4 &b);
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ccl_device_inline float4 operator+=(float4 &a, const float4 &b);
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ccl_device_inline float4 operator*=(float4 &a, const float4 &b);
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ccl_device_inline float4 operator*=(float4 &a, float f);
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ccl_device_inline float4 operator/=(float4 &a, float f);
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ccl_device_inline int4 operator<(const float4 &a, const float4 &b);
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ccl_device_inline int4 operator>=(const float4 &a, const float4 &b);
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ccl_device_inline int4 operator<=(const float4 &a, const float4 &b);
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ccl_device_inline bool operator==(const float4 &a, const float4 &b);
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ccl_device_inline float distance(const float4 &a, const float4 &b);
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ccl_device_inline float dot(const float4 &a, const float4 &b);
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ccl_device_inline float len_squared(const float4 &a);
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ccl_device_inline float4 rcp(const float4 &a);
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ccl_device_inline float4 sqrt(const float4 &a);
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ccl_device_inline float4 sqr(const float4 &a);
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ccl_device_inline float4 cross(const float4 &a, const float4 &b);
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ccl_device_inline bool is_zero(const float4 &a);
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ccl_device_inline float average(const float4 &a);
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ccl_device_inline float len(const float4 &a);
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ccl_device_inline float4 normalize(const float4 &a);
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ccl_device_inline float4 safe_normalize(const float4 &a);
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ccl_device_inline float4 min(const float4 &a, const float4 &b);
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ccl_device_inline float4 max(const float4 &a, const float4 &b);
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ccl_device_inline float4 clamp(const float4 &a, const float4 &mn, const float4 &mx);
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ccl_device_inline float4 fabs(const float4 &a);
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ccl_device_inline float4 floor(const float4 &a);
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ccl_device_inline float4 mix(const float4 &a, const float4 &b, float t);
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#endif /* !__KERNEL_OPENCL__*/
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ccl_device_inline float4 safe_divide_float4_float(const float4 a, const float b);
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#ifdef __KERNEL_SSE__
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template<size_t index_0, size_t index_1, size_t index_2, size_t index_3>
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__forceinline const float4 shuffle(const float4 &b);
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template<size_t index_0, size_t index_1, size_t index_2, size_t index_3>
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__forceinline const float4 shuffle(const float4 &a, const float4 &b);
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template<> __forceinline const float4 shuffle<0, 1, 0, 1>(const float4 &b);
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template<> __forceinline const float4 shuffle<0, 1, 0, 1>(const float4 &a, const float4 &b);
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template<> __forceinline const float4 shuffle<2, 3, 2, 3>(const float4 &a, const float4 &b);
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# ifdef __KERNEL_SSE3__
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template<> __forceinline const float4 shuffle<0, 0, 2, 2>(const float4 &b);
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template<> __forceinline const float4 shuffle<1, 1, 3, 3>(const float4 &b);
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# endif
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#endif /* __KERNEL_SSE__ */
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#ifndef __KERNEL_GPU__
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ccl_device_inline float4 select(const int4 &mask, const float4 &a, const float4 &b);
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ccl_device_inline float4 reduce_min(const float4 &a);
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ccl_device_inline float4 reduce_max(const float4 &a);
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ccl_device_inline float4 reduce_add(const float4 &a);
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#endif /* !__KERNEL_GPU__ */
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/*******************************************************************************
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* Definition.
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*/
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ccl_device_inline float4 zero_float4()
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{
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#ifdef __KERNEL_SSE__
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return float4(_mm_setzero_ps());
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#else
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return make_float4(0.0f, 0.0f, 0.0f, 0.0f);
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#endif
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}
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ccl_device_inline float4 one_float4()
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{
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return make_float4(1.0f, 1.0f, 1.0f, 1.0f);
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}
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#ifndef __KERNEL_OPENCL__
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ccl_device_inline float4 operator-(const float4 &a)
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{
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# ifdef __KERNEL_SSE__
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__m128 mask = _mm_castsi128_ps(_mm_set1_epi32(0x80000000));
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return float4(_mm_xor_ps(a.m128, mask));
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# else
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return make_float4(-a.x, -a.y, -a.z, -a.w);
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# endif
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}
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ccl_device_inline float4 operator*(const float4 &a, const float4 &b)
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{
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# ifdef __KERNEL_SSE__
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return float4(_mm_mul_ps(a.m128, b.m128));
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# else
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return make_float4(a.x * b.x, a.y * b.y, a.z * b.z, a.w * b.w);
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# endif
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}
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ccl_device_inline float4 operator*(const float4 &a, float f)
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{
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# if defined(__KERNEL_SSE__)
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return a * make_float4(f);
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# else
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return make_float4(a.x * f, a.y * f, a.z * f, a.w * f);
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# endif
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}
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ccl_device_inline float4 operator*(float f, const float4 &a)
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{
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return a * f;
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}
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ccl_device_inline float4 operator/(const float4 &a, float f)
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{
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return a * (1.0f / f);
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}
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ccl_device_inline float4 operator/(const float4 &a, const float4 &b)
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{
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# ifdef __KERNEL_SSE__
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return float4(_mm_div_ps(a.m128, b.m128));
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# else
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return make_float4(a.x / b.x, a.y / b.y, a.z / b.z, a.w / b.w);
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# endif
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}
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ccl_device_inline float4 operator+(const float4 &a, const float f)
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{
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return a + make_float4(f, f, f, f);
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}
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ccl_device_inline float4 operator+(const float4 &a, const float4 &b)
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{
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# ifdef __KERNEL_SSE__
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return float4(_mm_add_ps(a.m128, b.m128));
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# else
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return make_float4(a.x + b.x, a.y + b.y, a.z + b.z, a.w + b.w);
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# endif
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}
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ccl_device_inline float4 operator-(const float4 &a, const float f)
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{
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return a - make_float4(f, f, f, f);
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}
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ccl_device_inline float4 operator-(const float4 &a, const float4 &b)
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{
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# ifdef __KERNEL_SSE__
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return float4(_mm_sub_ps(a.m128, b.m128));
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# else
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return make_float4(a.x - b.x, a.y - b.y, a.z - b.z, a.w - b.w);
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# endif
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}
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ccl_device_inline float4 operator+=(float4 &a, const float4 &b)
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{
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return a = a + b;
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}
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ccl_device_inline float4 operator-=(float4 &a, const float4 &b)
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{
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return a = a - b;
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}
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ccl_device_inline float4 operator*=(float4 &a, const float4 &b)
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{
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return a = a * b;
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}
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ccl_device_inline float4 operator*=(float4 &a, float f)
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{
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return a = a * f;
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}
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ccl_device_inline float4 operator/=(float4 &a, float f)
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{
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return a = a / f;
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}
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ccl_device_inline int4 operator<(const float4 &a, const float4 &b)
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{
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# ifdef __KERNEL_SSE__
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return int4(_mm_castps_si128(_mm_cmplt_ps(a.m128, b.m128)));
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# else
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return make_int4(a.x < b.x, a.y < b.y, a.z < b.z, a.w < b.w);
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# endif
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}
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ccl_device_inline int4 operator>=(const float4 &a, const float4 &b)
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{
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# ifdef __KERNEL_SSE__
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return int4(_mm_castps_si128(_mm_cmpge_ps(a.m128, b.m128)));
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# else
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return make_int4(a.x >= b.x, a.y >= b.y, a.z >= b.z, a.w >= b.w);
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# endif
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}
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ccl_device_inline int4 operator<=(const float4 &a, const float4 &b)
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{
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# ifdef __KERNEL_SSE__
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return int4(_mm_castps_si128(_mm_cmple_ps(a.m128, b.m128)));
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# else
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return make_int4(a.x <= b.x, a.y <= b.y, a.z <= b.z, a.w <= b.w);
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# endif
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}
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ccl_device_inline bool operator==(const float4 &a, const float4 &b)
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{
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# ifdef __KERNEL_SSE__
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return (_mm_movemask_ps(_mm_cmpeq_ps(a.m128, b.m128)) & 15) == 15;
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# else
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return (a.x == b.x && a.y == b.y && a.z == b.z && a.w == b.w);
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# endif
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}
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ccl_device_inline float distance(const float4 &a, const float4 &b)
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{
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return len(a - b);
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}
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ccl_device_inline float dot(const float4 &a, const float4 &b)
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{
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# if defined(__KERNEL_SSE41__) && defined(__KERNEL_SSE__)
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# if defined(__KERNEL_NEON__)
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__m128 t = vmulq_f32(a, b);
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return vaddvq_f32(t);
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# else
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return _mm_cvtss_f32(_mm_dp_ps(a, b, 0xFF));
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# endif
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# else
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return (a.x * b.x + a.y * b.y) + (a.z * b.z + a.w * b.w);
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# endif
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}
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ccl_device_inline float len_squared(const float4 &a)
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{
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return dot(a, a);
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}
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ccl_device_inline float4 rcp(const float4 &a)
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{
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# ifdef __KERNEL_SSE__
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/* Don't use _mm_rcp_ps due to poor precision. */
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return float4(_mm_div_ps(_mm_set_ps1(1.0f), a.m128));
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# else
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return make_float4(1.0f / a.x, 1.0f / a.y, 1.0f / a.z, 1.0f / a.w);
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# endif
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}
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ccl_device_inline float4 sqrt(const float4 &a)
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{
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# ifdef __KERNEL_SSE__
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return float4(_mm_sqrt_ps(a.m128));
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# else
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return make_float4(sqrtf(a.x), sqrtf(a.y), sqrtf(a.z), sqrtf(a.w));
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# endif
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}
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ccl_device_inline float4 sqr(const float4 &a)
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{
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return a * a;
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}
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ccl_device_inline float4 cross(const float4 &a, const float4 &b)
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{
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# ifdef __KERNEL_SSE__
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return (shuffle<1, 2, 0, 0>(a) * shuffle<2, 0, 1, 0>(b)) -
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(shuffle<2, 0, 1, 0>(a) * shuffle<1, 2, 0, 0>(b));
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# else
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return make_float4(a.y * b.z - a.z * b.y, a.z * b.x - a.x * b.z, a.x * b.y - a.y * b.x, 0.0f);
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# endif
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}
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ccl_device_inline bool is_zero(const float4 &a)
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{
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# ifdef __KERNEL_SSE__
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return a == make_float4(0.0f);
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# else
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return (a.x == 0.0f && a.y == 0.0f && a.z == 0.0f && a.w == 0.0f);
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# endif
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}
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ccl_device_inline float4 reduce_add(const float4 &a)
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{
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# if defined(__KERNEL_SSE__)
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# if defined(__KERNEL_NEON__)
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return float4(vdupq_n_f32(vaddvq_f32(a)));
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# elif defined(__KERNEL_SSE3__)
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float4 h(_mm_hadd_ps(a.m128, a.m128));
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return float4(_mm_hadd_ps(h.m128, h.m128));
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# else
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float4 h(shuffle<1, 0, 3, 2>(a) + a);
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return shuffle<2, 3, 0, 1>(h) + h;
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# endif
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# else
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float sum = (a.x + a.y) + (a.z + a.w);
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return make_float4(sum, sum, sum, sum);
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# endif
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}
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ccl_device_inline float average(const float4 &a)
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{
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return reduce_add(a).x * 0.25f;
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}
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ccl_device_inline float len(const float4 &a)
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{
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return sqrtf(dot(a, a));
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}
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ccl_device_inline float4 normalize(const float4 &a)
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{
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return a / len(a);
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}
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ccl_device_inline float4 safe_normalize(const float4 &a)
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{
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float t = len(a);
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return (t != 0.0f) ? a / t : a;
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}
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ccl_device_inline float4 min(const float4 &a, const float4 &b)
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{
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# ifdef __KERNEL_SSE__
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return float4(_mm_min_ps(a.m128, b.m128));
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# else
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return make_float4(min(a.x, b.x), min(a.y, b.y), min(a.z, b.z), min(a.w, b.w));
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# endif
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}
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ccl_device_inline float4 max(const float4 &a, const float4 &b)
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{
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# ifdef __KERNEL_SSE__
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return float4(_mm_max_ps(a.m128, b.m128));
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# else
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return make_float4(max(a.x, b.x), max(a.y, b.y), max(a.z, b.z), max(a.w, b.w));
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# endif
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}
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ccl_device_inline float4 clamp(const float4 &a, const float4 &mn, const float4 &mx)
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{
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return min(max(a, mn), mx);
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}
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ccl_device_inline float4 fabs(const float4 &a)
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{
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# if defined(__KERNEL_SSE__)
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# if defined(__KERNEL_NEON__)
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return float4(vabsq_f32(a));
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# else
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return float4(_mm_and_ps(a.m128, _mm_castsi128_ps(_mm_set1_epi32(0x7fffffff))));
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# endif
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# else
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return make_float4(fabsf(a.x), fabsf(a.y), fabsf(a.z), fabsf(a.w));
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# endif
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}
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ccl_device_inline float4 floor(const float4 &a)
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{
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# ifdef __KERNEL_SSE__
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return float4(_mm_floor_ps(a));
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# else
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return make_float4(floorf(a.x), floorf(a.y), floorf(a.z), floorf(a.w));
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# endif
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}
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ccl_device_inline float4 mix(const float4 &a, const float4 &b, float t)
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{
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return a + t * (b - a);
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}
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#endif /* !__KERNEL_OPENCL__*/
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#ifdef __KERNEL_SSE__
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template<size_t index_0, size_t index_1, size_t index_2, size_t index_3>
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__forceinline const float4 shuffle(const float4 &b)
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{
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# if defined(__KERNEL_NEON__)
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return float4(shuffle_neon<__m128, index_0, index_1, index_2, index_3>(b.m128));
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# else
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return float4(_mm_castsi128_ps(
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_mm_shuffle_epi32(_mm_castps_si128(b), _MM_SHUFFLE(index_3, index_2, index_1, index_0))));
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# endif
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}
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template<size_t index_0, size_t index_1, size_t index_2, size_t index_3>
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__forceinline const float4 shuffle(const float4 &a, const float4 &b)
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{
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# if defined(__KERNEL_NEON__)
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return float4(shuffle_neon<__m128, index_0, index_1, index_2, index_3>(a.m128, b.m128));
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# else
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return float4(_mm_shuffle_ps(a.m128, b.m128, _MM_SHUFFLE(index_3, index_2, index_1, index_0)));
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# endif
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}
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template<> __forceinline const float4 shuffle<0, 1, 0, 1>(const float4 &b)
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{
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return float4(_mm_castpd_ps(_mm_movedup_pd(_mm_castps_pd(b))));
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}
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template<> __forceinline const float4 shuffle<0, 1, 0, 1>(const float4 &a, const float4 &b)
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{
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return float4(_mm_movelh_ps(a.m128, b.m128));
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}
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template<> __forceinline const float4 shuffle<2, 3, 2, 3>(const float4 &a, const float4 &b)
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{
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return float4(_mm_movehl_ps(b.m128, a.m128));
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}
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# ifdef __KERNEL_SSE3__
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template<> __forceinline const float4 shuffle<0, 0, 2, 2>(const float4 &b)
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{
|
|
return float4(_mm_moveldup_ps(b));
|
|
}
|
|
|
|
template<> __forceinline const float4 shuffle<1, 1, 3, 3>(const float4 &b)
|
|
{
|
|
return float4(_mm_movehdup_ps(b));
|
|
}
|
|
# endif /* __KERNEL_SSE3__ */
|
|
#endif /* __KERNEL_SSE__ */
|
|
|
|
#ifndef __KERNEL_GPU__
|
|
ccl_device_inline float4 select(const int4 &mask, const float4 &a, const float4 &b)
|
|
{
|
|
# ifdef __KERNEL_SSE__
|
|
return float4(_mm_blendv_ps(b.m128, a.m128, _mm_castsi128_ps(mask.m128)));
|
|
# else
|
|
return make_float4(
|
|
(mask.x) ? a.x : b.x, (mask.y) ? a.y : b.y, (mask.z) ? a.z : b.z, (mask.w) ? a.w : b.w);
|
|
# endif
|
|
}
|
|
|
|
ccl_device_inline float4 mask(const int4 &mask, const float4 &a)
|
|
{
|
|
/* Replace elements of x with zero where mask isn't set. */
|
|
return select(mask, a, make_float4(0.0f));
|
|
}
|
|
|
|
ccl_device_inline float4 reduce_min(const float4 &a)
|
|
{
|
|
# if defined(__KERNEL_SSE__)
|
|
# if defined(__KERNEL_NEON__)
|
|
return float4(vdupq_n_f32(vminvq_f32(a)));
|
|
# else
|
|
float4 h = min(shuffle<1, 0, 3, 2>(a), a);
|
|
return min(shuffle<2, 3, 0, 1>(h), h);
|
|
# endif
|
|
# else
|
|
return make_float4(min(min(a.x, a.y), min(a.z, a.w)));
|
|
# endif
|
|
}
|
|
|
|
ccl_device_inline float4 reduce_max(const float4 &a)
|
|
{
|
|
# if defined(__KERNEL_SSE__)
|
|
# if defined(__KERNEL_NEON__)
|
|
return float4(vdupq_n_f32(vmaxvq_f32(a)));
|
|
# else
|
|
float4 h = max(shuffle<1, 0, 3, 2>(a), a);
|
|
return max(shuffle<2, 3, 0, 1>(h), h);
|
|
# endif
|
|
# else
|
|
return make_float4(max(max(a.x, a.y), max(a.z, a.w)));
|
|
# endif
|
|
}
|
|
|
|
ccl_device_inline float4 load_float4(const float *v)
|
|
{
|
|
# ifdef __KERNEL_SSE__
|
|
return float4(_mm_loadu_ps(v));
|
|
# else
|
|
return make_float4(v[0], v[1], v[2], v[3]);
|
|
# endif
|
|
}
|
|
|
|
#endif /* !__KERNEL_GPU__ */
|
|
|
|
ccl_device_inline float4 safe_divide_float4_float(const float4 a, const float b)
|
|
{
|
|
return (b != 0.0f) ? a / b : zero_float4();
|
|
}
|
|
|
|
ccl_device_inline bool isfinite4_safe(float4 v)
|
|
{
|
|
return isfinite_safe(v.x) && isfinite_safe(v.y) && isfinite_safe(v.z) && isfinite_safe(v.w);
|
|
}
|
|
|
|
ccl_device_inline float4 ensure_finite4(float4 v)
|
|
{
|
|
if (!isfinite_safe(v.x))
|
|
v.x = 0.0f;
|
|
if (!isfinite_safe(v.y))
|
|
v.y = 0.0f;
|
|
if (!isfinite_safe(v.z))
|
|
v.z = 0.0f;
|
|
if (!isfinite_safe(v.w))
|
|
v.w = 0.0f;
|
|
return v;
|
|
}
|
|
|
|
CCL_NAMESPACE_END
|
|
|
|
#endif /* __UTIL_MATH_FLOAT4_H__ */
|