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Diffstat (limited to 'intern/cycles/util/util_math_float4.h')
| -rw-r--r-- | intern/cycles/util/util_math_float4.h | 393 |
1 files changed, 393 insertions, 0 deletions
diff --git a/intern/cycles/util/util_math_float4.h b/intern/cycles/util/util_math_float4.h new file mode 100644 index 00000000000..d89121b3a1d --- /dev/null +++ b/intern/cycles/util/util_math_float4.h @@ -0,0 +1,393 @@ +/* + * 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_FLOAT4_H__ +#define __UTIL_MATH_FLOAT4_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 float4 operator-(const float4& a); +ccl_device_inline float4 operator*(const float4& a, const float4& b); +ccl_device_inline float4 operator*(const float4& a, float f); +ccl_device_inline float4 operator*(float f, const float4& a); +ccl_device_inline float4 operator/(const float4& a, float f); +ccl_device_inline float4 operator/(const float4& a, const float4& b); +ccl_device_inline float4 operator+(const float4& a, const float4& b); +ccl_device_inline float4 operator-(const float4& a, const float4& b); +ccl_device_inline float4 operator+=(float4& a, const float4& b); +ccl_device_inline float4 operator*=(float4& a, const float4& b); +ccl_device_inline float4 operator/=(float4& a, float f); + +ccl_device_inline int4 operator<(const float4& a, const float4& b); +ccl_device_inline int4 operator>=(const float4& a, const float4& b); +ccl_device_inline int4 operator<=(const float4& a, const float4& b); +ccl_device_inline bool operator==(const float4& a, const float4& b); + +ccl_device_inline float dot(const float4& a, const float4& b); +ccl_device_inline float len_squared(const float4& a); +ccl_device_inline float4 rcp(const float4& a); +ccl_device_inline float4 cross(const float4& a, const float4& b); +ccl_device_inline bool is_zero(const float4& a); +ccl_device_inline float reduce_add(const float4& a); +ccl_device_inline float average(const float4& a); +ccl_device_inline float len(const float4& a); +ccl_device_inline float4 normalize(const float4& a); +ccl_device_inline float4 safe_normalize(const float4& a); +ccl_device_inline float4 min(const float4& a, const float4& b); +ccl_device_inline float4 max(const float4& a, const float4& b); +#endif /* !__KERNEL_OPENCL__*/ + +#ifdef __KERNEL_SSE__ +template<size_t index_0, size_t index_1, size_t index_2, size_t index_3> +__forceinline const float4 shuffle(const float4& b); + +template<> __forceinline const float4 shuffle<0, 1, 0, 1>(const float4& b); + +# ifdef __KERNEL_SSE3__ +template<> __forceinline const float4 shuffle<0, 0, 2, 2>(const float4& b); +template<> __forceinline const float4 shuffle<1, 1, 3, 3>(const float4& b); +# endif +#endif /* __KERNEL_SSE__ */ + +#ifndef __KERNEL_GPU__ +ccl_device_inline float4 select(const int4& mask, + const float4& a, + const float4& b); +ccl_device_inline float4 reduce_min(const float4& a); +ccl_device_inline float4 reduce_max(const float4& a); +# if 0 +ccl_device_inline float4 reduce_add(const float4& a); +# endif +#endif /* !__KERNEL_GPU__ */ + +/******************************************************************************* + * Definition. + */ + +#ifndef __KERNEL_OPENCL__ +ccl_device_inline float4 operator-(const float4& a) +{ +#ifdef __KERNEL_SSE__ + __m128 mask = _mm_castsi128_ps(_mm_set1_epi32(0x80000000)); + return float4(_mm_xor_ps(a.m128, mask)); +#else + return make_float4(-a.x, -a.y, -a.z, -a.w); +#endif +} + +ccl_device_inline float4 operator*(const float4& a, const float4& b) +{ +#ifdef __KERNEL_SSE__ + return float4(_mm_mul_ps(a.m128, b.m128)); +#else + return make_float4(a.x*b.x, a.y*b.y, a.z*b.z, a.w*b.w); +#endif +} + +ccl_device_inline float4 operator*(const float4& a, float f) +{ +#if defined(__KERNEL_SSE__) + return a * make_float4(f); +#else + return make_float4(a.x*f, a.y*f, a.z*f, a.w*f); +#endif +} + +ccl_device_inline float4 operator*(float f, const float4& a) +{ + return a * f; +} + +ccl_device_inline float4 operator/(const float4& a, float f) +{ + return a * (1.0f/f); +} + +ccl_device_inline float4 operator/(const float4& a, const float4& b) +{ +#ifdef __KERNEL_SSE__ + return a * rcp(b); +#else + return make_float4(a.x/b.x, a.y/b.y, a.z/b.z, a.w/b.w); +#endif + +} + +ccl_device_inline float4 operator+(const float4& a, const float4& b) +{ +#ifdef __KERNEL_SSE__ + return float4(_mm_add_ps(a.m128, b.m128)); +#else + return make_float4(a.x+b.x, a.y+b.y, a.z+b.z, a.w+b.w); +#endif +} + +ccl_device_inline float4 operator-(const float4& a, const float4& b) +{ +#ifdef __KERNEL_SSE__ + return float4(_mm_sub_ps(a.m128, b.m128)); +#else + return make_float4(a.x-b.x, a.y-b.y, a.z-b.z, a.w-b.w); +#endif +} + +ccl_device_inline float4 operator+=(float4& a, const float4& b) +{ + return a = a + b; +} + +ccl_device_inline float4 operator*=(float4& a, const float4& b) +{ + return a = a * b; +} + +ccl_device_inline float4 operator/=(float4& a, float f) +{ + return a = a / f; +} + +ccl_device_inline int4 operator<(const float4& a, const float4& b) +{ +#ifdef __KERNEL_SSE__ + /* TODO(sergey): avoid cvt. */ + return int4(_mm_cvtps_epi32(_mm_cmplt_ps(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>=(const float4& a, const float4& b) +{ +#ifdef __KERNEL_SSE__ + /* TODO(sergey): avoid cvt. */ + return int4(_mm_cvtps_epi32(_mm_cmpge_ps(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<=(const float4& a, const float4& b) +{ +#ifdef __KERNEL_SSE__ + /* TODO(sergey): avoid cvt. */ + return int4(_mm_cvtps_epi32(_mm_cmple_ps(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 bool operator==(const float4& a, const float4& b) +{ +#ifdef __KERNEL_SSE__ + return (_mm_movemask_ps(_mm_cmpeq_ps(a.m128, b.m128)) & 15) == 15; +#else + return (a.x == b.x && a.y == b.y && a.z == b.z && a.w == b.w); +#endif +} + +ccl_device_inline float dot(const float4& a, const float4& b) +{ +#if defined(__KERNEL_SSE41__) && defined(__KERNEL_SSE__) + return _mm_cvtss_f32(_mm_dp_ps(a, b, 0xFF)); +#else + return (a.x*b.x + a.y*b.y) + (a.z*b.z + a.w*b.w); +#endif +} + +ccl_device_inline float len_squared(const float4& a) +{ + return dot(a, a); +} + +ccl_device_inline float4 rcp(const float4& a) +{ +#ifdef __KERNEL_SSE__ + float4 r(_mm_rcp_ps(a.m128)); + return float4(_mm_sub_ps(_mm_add_ps(r, r), + _mm_mul_ps(_mm_mul_ps(r, r), a))); +#else + return make_float4(1.0f/a.x, 1.0f/a.y, 1.0f/a.z, 1.0f/a.w); +#endif +} + +ccl_device_inline float4 cross(const float4& a, const float4& b) +{ +#ifdef __KERNEL_SSE__ + return (shuffle<1,2,0,0>(a)*shuffle<2,0,1,0>(b)) - + (shuffle<2,0,1,0>(a)*shuffle<1,2,0,0>(b)); +#else + 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); +#endif +} + +ccl_device_inline bool is_zero(const float4& a) +{ +#ifdef __KERNEL_SSE__ + return a == make_float4(0.0f); +#else + return (a.x == 0.0f && a.y == 0.0f && a.z == 0.0f && a.w == 0.0f); +#endif +} + +ccl_device_inline float reduce_add(const float4& a) +{ +#ifdef __KERNEL_SSE__ + float4 h(shuffle<1,0,3,2>(a) + a); + /* TODO(sergey): Investigate efficiency. */ + return _mm_cvtss_f32(shuffle<2,3,0,1>(h) + h); +#else + return ((a.x + a.y) + (a.z + a.w)); +#endif +} + +ccl_device_inline float average(const float4& a) +{ + return reduce_add(a) * 0.25f; +} + +ccl_device_inline float len(const float4& a) +{ + return sqrtf(dot(a, a)); +} + +ccl_device_inline float4 normalize(const float4& a) +{ + return a/len(a); +} + +ccl_device_inline float4 safe_normalize(const float4& a) +{ + float t = len(a); + return (t != 0.0f)? a/t: a; +} + +ccl_device_inline float4 min(const float4& a, const float4& b) +{ +#ifdef __KERNEL_SSE__ + return float4(_mm_min_ps(a.m128, b.m128)); +#else + return make_float4(min(a.x, b.x), + min(a.y, b.y), + min(a.z, b.z), + min(a.w, b.w)); +#endif +} + +ccl_device_inline float4 max(const float4& a, const float4& b) +{ +#ifdef __KERNEL_SSE__ + return float4(_mm_max_ps(a.m128, b.m128)); +#else + return make_float4(max(a.x, b.x), + max(a.y, b.y), + max(a.z, b.z), + max(a.w, b.w)); +#endif +} +#endif /* !__KERNEL_OPENCL__*/ + +#ifdef __KERNEL_SSE__ +template<size_t index_0, size_t index_1, size_t index_2, size_t index_3> +__forceinline const float4 shuffle(const float4& b) +{ + return float4(_mm_castsi128_ps( + _mm_shuffle_epi32(_mm_castps_si128(b), + _MM_SHUFFLE(index_3, index_2, index_1, index_0)))); +} + +template<> __forceinline const float4 shuffle<0, 1, 0, 1>(const float4& b) +{ + return float4(_mm_castpd_ps(_mm_movedup_pd(_mm_castps_pd(b)))); +} + +# ifdef __KERNEL_SSE3__ +template<> __forceinline const float4 shuffle<0, 0, 2, 2>(const float4& b) +{ + 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__ + /* TODO(sergey): avoid cvt. */ + return float4(_mm_or_ps(_mm_and_ps(_mm_cvtepi32_ps(mask), a), + _mm_andnot_ps(_mm_cvtepi32_ps(mask), b))); +#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 reduce_min(const float4& a) +{ +#ifdef __KERNEL_SSE__ + float4 h = min(shuffle<1,0,3,2>(a), a); + return min(shuffle<2,3,0,1>(h), h); +#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) +{ +#ifdef __KERNEL_SSE__ + float4 h = max(shuffle<1,0,3,2>(a), a); + return max(shuffle<2,3,0,1>(h), h); +#else + return make_float4(max(max(a.x, a.y), max(a.z, a.w))); +#endif +} + +#if 0 +ccl_device_inline float4 reduce_add(const float4& a) +{ +#ifdef __KERNEL_SSE__ + float4 h = shuffle<1,0,3,2>(a) + a; + return shuffle<2,3,0,1>(h) + h; +#else + return make_float4((a.x + a.y) + (a.z + a.w)); +#endif +} +#endif +#endif /* !__KERNEL_GPU__ */ + +CCL_NAMESPACE_END + +#endif /* __UTIL_MATH_FLOAT4_H__ */ |