blender/intern/cycles/util/util_math_int3.h
Sergey Sharybin 0a07cdbe80 Cycles: Split vectorized math utilities to a dedicated files
This file was even a bigger mess than vectorized types header,
cleaning it up to make it easier to maintain this files and
extend further.
2017-04-25 10:33:26 +02:00

84 lines
2.3 KiB
C

/*
* Copyright 2011-2017 Blender Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __UTIL_MATH_INT3_H__
#define __UTIL_MATH_INT3_H__
#ifndef __UTIL_MATH_H__
# error "Do not include this file directly, include util_types.h instead."
#endif
CCL_NAMESPACE_BEGIN
/*******************************************************************************
* Declaration.
*/
#ifndef __KERNEL_OPENCL__
ccl_device_inline int3 min(int3 a, int3 b);
ccl_device_inline int3 max(int3 a, int3 b);
ccl_device_inline int3 clamp(const int3& a, int mn, int mx);
ccl_device_inline int3 clamp(const int3& a, int3& mn, int mx);
#endif /* !__KERNEL_OPENCL__ */
/*******************************************************************************
* Definition.
*/
#ifndef __KERNEL_OPENCL__
ccl_device_inline int3 min(int3 a, int3 b)
{
#if defined(__KERNEL_SSE__) && defined(__KERNEL_SSE41__)
return int3(_mm_min_epi32(a.m128, b.m128));
#else
return make_int3(min(a.x, b.x), min(a.y, b.y), min(a.z, b.z));
#endif
}
ccl_device_inline int3 max(int3 a, int3 b)
{
#if defined(__KERNEL_SSE__) && defined(__KERNEL_SSE41__)
return int3(_mm_max_epi32(a.m128, b.m128));
#else
return make_int3(max(a.x, b.x), max(a.y, b.y), max(a.z, b.z));
#endif
}
ccl_device_inline int3 clamp(const int3& a, int mn, int mx)
{
#ifdef __KERNEL_SSE__
return min(max(a, make_int3(mn)), make_int3(mx));
#else
return make_int3(clamp(a.x, mn, mx), clamp(a.y, mn, mx), clamp(a.z, mn, mx));
#endif
}
ccl_device_inline int3 clamp(const int3& a, int3& mn, int mx)
{
#ifdef __KERNEL_SSE__
return min(max(a, mn), make_int3(mx));
#else
return make_int3(clamp(a.x, mn.x, mx),
clamp(a.y, mn.y, mx),
clamp(a.z, mn.z, mx));
#endif
}
#endif /* !__KERNEL_OPENCL__ */
CCL_NAMESPACE_END
#endif /* __UTIL_MATH_INT3_H__ */