forked from bartvdbraak/blender
111 lines
3.1 KiB
C
111 lines
3.1 KiB
C
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/*
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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_INT4_H__
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#define __UTIL_MATH_INT4_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_GPU__
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ccl_device_inline int4 operator+(const int4& a, const int4& b);
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ccl_device_inline int4 operator+=(int4& a, const int4& b);
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ccl_device_inline int4 operator>>(const int4& a, int i);
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ccl_device_inline int4 min(int4 a, int4 b);
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ccl_device_inline int4 max(int4 a, int4 b);
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ccl_device_inline int4 clamp(const int4& a, const int4& mn, const int4& mx);
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ccl_device_inline int4 select(const int4& mask, const int4& a, const int4& b);
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#endif /* __KERNEL_GPU__ */
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/*******************************************************************************
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* Definition.
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*/
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#ifndef __KERNEL_GPU__
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ccl_device_inline int4 operator+(const int4& a, const int4& b)
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{
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#ifdef __KERNEL_SSE__
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return int4(_mm_add_epi32(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+=(int4& a, const int4& b)
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{
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return a = a + b;
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}
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ccl_device_inline int4 operator>>(const int4& a, int i)
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{
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#ifdef __KERNEL_SSE__
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return int4(_mm_srai_epi32(a.m128, i));
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#else
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return make_int4(a.x >> i, a.y >> i, a.z >> i, a.w >> i);
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#endif
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}
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ccl_device_inline int4 min(int4 a, int4 b)
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{
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#if defined(__KERNEL_SSE__) && defined(__KERNEL_SSE41__)
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return int4(_mm_min_epi32(a.m128, b.m128));
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#else
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return make_int4(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 int4 max(int4 a, int4 b)
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{
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#if defined(__KERNEL_SSE__) && defined(__KERNEL_SSE41__)
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return int4(_mm_max_epi32(a.m128, b.m128));
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#else
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return make_int4(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 int4 clamp(const int4& a, const int4& mn, const int4& 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 int4 select(const int4& mask, const int4& a, const int4& b)
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{
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#ifdef __KERNEL_SSE__
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const __m128 m = _mm_cvtepi32_ps(mask);
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/* TODO(sergey): avoid cvt. */
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return int4(_mm_castps_si128(
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_mm_or_ps(_mm_and_ps(m, _mm_castsi128_ps(a)),
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_mm_andnot_ps(m, _mm_castsi128_ps(b)))));
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#else
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return make_int4((mask.x)? a.x: b.x,
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(mask.y)? a.y: b.y,
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(mask.z)? a.z: b.z,
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(mask.w)? a.w: b.w);
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#endif
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}
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#endif /* __KERNEL_GPU__ */
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CCL_NAMESPACE_END
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#endif /* __UTIL_MATH_INT4_H__ */
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