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Diffstat (limited to 'intern/cycles/util/util_math_int4.h')
| -rw-r--r-- | intern/cycles/util/util_math_int4.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/intern/cycles/util/util_math_int4.h b/intern/cycles/util/util_math_int4.h new file mode 100644 index 00000000000..79a8c0841e7 --- /dev/null +++ b/intern/cycles/util/util_math_int4.h @@ -0,0 +1,119 @@ +/* + * 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_INT4_H__ +#define __UTIL_MATH_INT4_H__ + +#ifndef __UTIL_MATH_H__ +# error "Do not include this file directly, include util_types.h instead." +#endif + +CCL_NAMESPACE_BEGIN + +/******************************************************************************* + * Declaration. + */ + +#ifndef __KERNEL_GPU__ +ccl_device_inline int4 operator+(const int4& a, const int4& b); +ccl_device_inline int4 operator+=(int4& a, const int4& b); +ccl_device_inline int4 operator>>(const int4& a, int i); +ccl_device_inline int4 min(int4 a, int4 b); +ccl_device_inline int4 max(int4 a, int4 b); +ccl_device_inline int4 clamp(const int4& a, const int4& mn, const int4& mx); +ccl_device_inline int4 select(const int4& mask, const int4& a, const int4& b); +#endif /* __KERNEL_GPU__ */ + +/******************************************************************************* + * Definition. + */ + +#ifndef __KERNEL_GPU__ +ccl_device_inline int4 operator+(const int4& a, const int4& b) +{ +#ifdef __KERNEL_SSE__ + return int4(_mm_add_epi32(a.m128, b.m128)); +#else + return make_int4(a.x+b.x, a.y+b.y, a.z+b.z, a.w+b.w); +#endif +} + +ccl_device_inline int4 operator+=(int4& a, const int4& b) +{ + return a = a + b; +} + +ccl_device_inline int4 operator>>(const int4& a, int i) +{ +#ifdef __KERNEL_SSE__ + return int4(_mm_srai_epi32(a.m128, i)); +#else + return make_int4(a.x >> i, a.y >> i, a.z >> i, a.w >> i); +#endif +} + +ccl_device_inline int4 min(int4 a, int4 b) +{ +#if defined(__KERNEL_SSE__) && defined(__KERNEL_SSE41__) + return int4(_mm_min_epi32(a.m128, b.m128)); +#else + return make_int4(min(a.x, b.x), min(a.y, b.y), min(a.z, b.z), min(a.w, b.w)); +#endif +} + +ccl_device_inline int4 max(int4 a, int4 b) +{ +#if defined(__KERNEL_SSE__) && defined(__KERNEL_SSE41__) + return int4(_mm_max_epi32(a.m128, b.m128)); +#else + return make_int4(max(a.x, b.x), max(a.y, b.y), max(a.z, b.z), max(a.w, b.w)); +#endif +} + +ccl_device_inline int4 clamp(const int4& a, const int4& mn, const int4& mx) +{ + return min(max(a, mn), mx); +} + +ccl_device_inline int4 select(const int4& mask, const int4& a, const int4& b) +{ +#ifdef __KERNEL_SSE__ + const __m128 m = _mm_cvtepi32_ps(mask); + /* TODO(sergey): avoid cvt. */ + return int4(_mm_castps_si128( + _mm_or_ps(_mm_and_ps(m, _mm_castsi128_ps(a)), + _mm_andnot_ps(m, _mm_castsi128_ps(b))))); +#else + return make_int4((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 int4 load_int4(const int *v) +{ +#ifdef __KERNEL_SSE__ + return int4(_mm_loadu_si128((__m128i*)v)); +#else + return make_int4(v[0], v[1], v[2], v[3]); +#endif +} +#endif /* __KERNEL_GPU__ */ + +CCL_NAMESPACE_END + +#endif /* __UTIL_MATH_INT4_H__ */ |