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Diffstat (limited to 'intern/cycles/util/util_math_float3.h')
-rw-r--r-- | intern/cycles/util/util_math_float3.h | 365 |
1 files changed, 365 insertions, 0 deletions
diff --git a/intern/cycles/util/util_math_float3.h b/intern/cycles/util/util_math_float3.h new file mode 100644 index 00000000000..e0c6b551040 --- /dev/null +++ b/intern/cycles/util/util_math_float3.h @@ -0,0 +1,365 @@ +/* + * 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_FLOAT3_H__ +#define __UTIL_MATH_FLOAT3_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 float3 operator-(const float3& a); +ccl_device_inline float3 operator*(const float3& a, const float3& b); +ccl_device_inline float3 operator*(const float3& a, const float f); +ccl_device_inline float3 operator*(const float f, const float3& a); +ccl_device_inline float3 operator/(const float f, const float3& a); +ccl_device_inline float3 operator/(const float3& a, const float f); +ccl_device_inline float3 operator/(const float3& a, const float3& b); +ccl_device_inline float3 operator+(const float3& a, const float3& b); +ccl_device_inline float3 operator-(const float3& a, const float3& b); +ccl_device_inline float3 operator+=(float3& a, const float3& b); +ccl_device_inline float3 operator*=(float3& a, const float3& b); +ccl_device_inline float3 operator*=(float3& a, float f); +ccl_device_inline float3 operator/=(float3& a, const float3& b); +ccl_device_inline float3 operator/=(float3& a, float f); + +ccl_device_inline bool operator==(const float3& a, const float3& b); +ccl_device_inline bool operator!=(const float3& a, const float3& b); + +ccl_device_inline float dot(const float3& a, const float3& b); +ccl_device_inline float dot_xy(const float3& a, const float3& b); +ccl_device_inline float3 cross(const float3& a, const float3& b); +ccl_device_inline float3 normalize(const float3& a); +ccl_device_inline float3 min(const float3& a, const float3& b); +ccl_device_inline float3 max(const float3& a, const float3& b); +ccl_device_inline float3 clamp(const float3& a, const float3& mn, const float3& mx); +ccl_device_inline float3 fabs(const float3& a); +ccl_device_inline float3 mix(const float3& a, const float3& b, float t); +ccl_device_inline float3 rcp(const float3& a); +#endif /* !__KERNEL_OPENCL__ */ + +ccl_device_inline float max3(float3 a); +ccl_device_inline float len(const float3 a); +ccl_device_inline float len_squared(const float3 a); + +ccl_device_inline float3 saturate3(float3 a); +ccl_device_inline float3 safe_normalize(const float3 a); +ccl_device_inline float3 normalize_len(const float3 a, float *t);; +ccl_device_inline float3 safe_normalize_len(const float3 a, float *t); +ccl_device_inline float3 interp(float3 a, float3 b, float t); + +ccl_device_inline bool is_zero(const float3 a); +ccl_device_inline float reduce_add(const float3 a); +ccl_device_inline float average(const float3 a); +ccl_device_inline bool isequal_float3(const float3 a, const float3 b); + +/******************************************************************************* + * Definition. + */ + +#ifndef __KERNEL_OPENCL__ +ccl_device_inline float3 operator-(const float3& a) +{ +#ifdef __KERNEL_SSE__ + return float3(_mm_xor_ps(a.m128, _mm_castsi128_ps(_mm_set1_epi32(0x80000000)))); +#else + return make_float3(-a.x, -a.y, -a.z); +#endif +} + +ccl_device_inline float3 operator*(const float3& a, const float3& b) +{ +#ifdef __KERNEL_SSE__ + return float3(_mm_mul_ps(a.m128,b.m128)); +#else + return make_float3(a.x*b.x, a.y*b.y, a.z*b.z); +#endif +} + +ccl_device_inline float3 operator*(const float3& a, const float f) +{ +#ifdef __KERNEL_SSE__ + return float3(_mm_mul_ps(a.m128,_mm_set1_ps(f))); +#else + return make_float3(a.x*f, a.y*f, a.z*f); +#endif +} + +ccl_device_inline float3 operator*(const float f, const float3& a) +{ + /* TODO(sergey): Currently disabled, gives speedup but causes precision issues. */ +#if defined(__KERNEL_SSE__) && 0 + return float3(_mm_mul_ps(_mm_set1_ps(f), a.m128)); +#else + return make_float3(a.x*f, a.y*f, a.z*f); +#endif +} + +ccl_device_inline float3 operator/(const float f, const float3& a) +{ + /* TODO(sergey): Currently disabled, gives speedup but causes precision issues. */ +#if defined(__KERNEL_SSE__) && 0 + __m128 rc = _mm_rcp_ps(a.m128); + return float3(_mm_mul_ps(_mm_set1_ps(f),rc)); +#else + return make_float3(f / a.x, f / a.y, f / a.z); +#endif +} + +ccl_device_inline float3 operator/(const float3& a, const float f) +{ + float invf = 1.0f/f; + return a * invf; +} + +ccl_device_inline float3 operator/(const float3& a, const float3& b) +{ + /* TODO(sergey): Currently disabled, gives speedup but causes precision issues. */ +#if defined(__KERNEL_SSE__) && 0 + __m128 rc = _mm_rcp_ps(b.m128); + return float3(_mm_mul_ps(a, rc)); +#else + return make_float3(a.x / b.x, a.y / b.y, a.z / b.z); +#endif +} + +ccl_device_inline float3 operator+(const float3& a, const float3& b) +{ +#ifdef __KERNEL_SSE__ + return float3(_mm_add_ps(a.m128, b.m128)); +#else + return make_float3(a.x + b.x, a.y + b.y, a.z + b.z); +#endif +} + +ccl_device_inline float3 operator-(const float3& a, const float3& b) +{ +#ifdef __KERNEL_SSE__ + return float3(_mm_sub_ps(a.m128, b.m128)); +#else + return make_float3(a.x - b.x, a.y - b.y, a.z - b.z); +#endif +} + +ccl_device_inline float3 operator+=(float3& a, const float3& b) +{ + return a = a + b; +} + +ccl_device_inline float3 operator*=(float3& a, const float3& b) +{ + return a = a * b; +} + +ccl_device_inline float3 operator*=(float3& a, float f) +{ + return a = a * f; +} + +ccl_device_inline float3 operator/=(float3& a, const float3& b) +{ + return a = a / b; +} + +ccl_device_inline float3 operator/=(float3& a, float f) +{ + float invf = 1.0f/f; + return a = a * invf; +} + +ccl_device_inline bool operator==(const float3& a, const float3& b) +{ +#ifdef __KERNEL_SSE__ + return (_mm_movemask_ps(_mm_cmpeq_ps(a.m128, b.m128)) & 7) == 7; +#else + return (a.x == b.x && a.y == b.y && a.z == b.z); +#endif +} + +ccl_device_inline bool operator!=(const float3& a, const float3& b) +{ + return !(a == b); +} + +ccl_device_inline float dot(const float3& a, const float3& b) +{ +#if defined(__KERNEL_SSE41__) && defined(__KERNEL_SSE__) + return _mm_cvtss_f32(_mm_dp_ps(a, b, 0x7F)); +#else + return a.x*b.x + a.y*b.y + a.z*b.z; +#endif +} + +ccl_device_inline float dot_xy(const float3& a, const float3& b) +{ +#if defined(__KERNEL_SSE41__) && defined(__KERNEL_SSE__) + return _mm_cvtss_f32(_mm_hadd_ps(_mm_mul_ps(a,b),b)); +#else + return a.x*b.x + a.y*b.y; +#endif +} + +ccl_device_inline float3 cross(const float3& a, const float3& b) +{ + float3 r = make_float3(a.y*b.z - a.z*b.y, a.z*b.x - a.x*b.z, a.x*b.y - a.y*b.x); + return r; +} + +ccl_device_inline float3 normalize(const float3& a) +{ +#if defined(__KERNEL_SSE41__) && defined(__KERNEL_SSE__) + __m128 norm = _mm_sqrt_ps(_mm_dp_ps(a.m128, a.m128, 0x7F)); + return float3(_mm_div_ps(a.m128, norm)); +#else + return a/len(a); +#endif +} + +ccl_device_inline float3 min(const float3& a, const float3& b) +{ +#ifdef __KERNEL_SSE__ + return float3(_mm_min_ps(a.m128, b.m128)); +#else + return make_float3(min(a.x, b.x), min(a.y, b.y), min(a.z, b.z)); +#endif +} + +ccl_device_inline float3 max(const float3& a, const float3& b) +{ +#ifdef __KERNEL_SSE__ + return float3(_mm_max_ps(a.m128, b.m128)); +#else + return make_float3(max(a.x, b.x), max(a.y, b.y), max(a.z, b.z)); +#endif +} + +ccl_device_inline float3 clamp(const float3& a, const float3& mn, const float3& mx) +{ + return min(max(a, mn), mx); +} + +ccl_device_inline float3 fabs(const float3& a) +{ +#ifdef __KERNEL_SSE__ + __m128 mask = _mm_castsi128_ps(_mm_set1_epi32(0x7fffffff)); + return float3(_mm_and_ps(a.m128, mask)); +#else + return make_float3(fabsf(a.x), fabsf(a.y), fabsf(a.z)); +#endif +} + +ccl_device_inline float3 mix(const float3& a, const float3& b, float t) +{ + return a + t*(b - a); +} + +ccl_device_inline float3 rcp(const float3& a) +{ +#ifdef __KERNEL_SSE__ + const float4 r(_mm_rcp_ps(a.m128)); + return float3(_mm_sub_ps(_mm_add_ps(r, r), + _mm_mul_ps(_mm_mul_ps(r, r), a))); +#else + return make_float3(1.0f/a.x, 1.0f/a.y, 1.0f/a.z); +#endif +} +#endif /* !__KERNEL_OPENCL__ */ + +ccl_device_inline float max3(float3 a) +{ + return max(max(a.x, a.y), a.z); +} + +ccl_device_inline float len(const float3 a) +{ +#if defined(__KERNEL_SSE41__) && defined(__KERNEL_SSE__) + return _mm_cvtss_f32(_mm_sqrt_ss(_mm_dp_ps(a.m128, a.m128, 0x7F))); +#else + return sqrtf(dot(a, a)); +#endif +} + +ccl_device_inline float len_squared(const float3 a) +{ + return dot(a, a); +} + +ccl_device_inline float3 saturate3(float3 a) +{ + return make_float3(saturate(a.x), saturate(a.y), saturate(a.z)); +} + +ccl_device_inline float3 normalize_len(const float3 a, float *t) +{ + *t = len(a); + float x = 1.0f / *t; + return a*x; +} + +ccl_device_inline float3 safe_normalize(const float3 a) +{ + float t = len(a); + return (t != 0.0f)? a * (1.0f/t) : a; +} + +ccl_device_inline float3 safe_normalize_len(const float3 a, float *t) +{ + *t = len(a); + return (*t != 0.0f)? a/(*t): a; +} + +ccl_device_inline float3 interp(float3 a, float3 b, float t) +{ + return a + t*(b - a); +} + +ccl_device_inline bool is_zero(const float3 a) +{ +#ifdef __KERNEL_SSE__ + return a == make_float3(0.0f); +#else + return (a.x == 0.0f && a.y == 0.0f && a.z == 0.0f); +#endif +} + +ccl_device_inline float reduce_add(const float3 a) +{ + return (a.x + a.y + a.z); +} + +ccl_device_inline float average(const float3 a) +{ + return reduce_add(a)*(1.0f/3.0f); +} + +ccl_device_inline bool isequal_float3(const float3 a, const float3 b) +{ +#ifdef __KERNEL_OPENCL__ + return all(a == b); +#else + return a == b; +#endif +} +CCL_NAMESPACE_END + +#endif /* __UTIL_MATH_FLOAT3_H__ */ |