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Diffstat (limited to 'intern/cycles/util/math_float4.h')
| -rw-r--r-- | intern/cycles/util/math_float4.h | 541 |
1 files changed, 541 insertions, 0 deletions
diff --git a/intern/cycles/util/math_float4.h b/intern/cycles/util/math_float4.h new file mode 100644 index 00000000000..1203a10cca4 --- /dev/null +++ b/intern/cycles/util/math_float4.h @@ -0,0 +1,541 @@ +/* + * 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. + */ + +#if !defined(__KERNEL_METAL__) +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 float f); +ccl_device_inline float4 operator+(const float4 &a, const float4 &b); +ccl_device_inline float4 operator-(const float4 &a, const float f); +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 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 distance(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 sqrt(const float4 &a); +ccl_device_inline float4 sqr(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 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); +ccl_device_inline float4 clamp(const float4 &a, const float4 &mn, const float4 &mx); +ccl_device_inline float4 fabs(const float4 &a); +ccl_device_inline float4 floor(const float4 &a); +ccl_device_inline float4 mix(const float4 &a, const float4 &b, float t); +#endif /* !__KERNEL_METAL__*/ + +ccl_device_inline float4 safe_divide_float4_float(const float4 a, const float b); + +#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<size_t index_0, size_t index_1, size_t index_2, size_t index_3> +__forceinline const float4 shuffle(const float4 &a, const float4 &b); + +template<> __forceinline const float4 shuffle<0, 1, 0, 1>(const float4 &b); + +template<> __forceinline const float4 shuffle<0, 1, 0, 1>(const float4 &a, const float4 &b); +template<> __forceinline const float4 shuffle<2, 3, 2, 3>(const float4 &a, 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); +ccl_device_inline float4 reduce_add(const float4 &a); +#endif /* !__KERNEL_GPU__ */ + +/******************************************************************************* + * Definition. + */ + +ccl_device_inline float4 zero_float4() +{ +#ifdef __KERNEL_SSE__ + return float4(_mm_setzero_ps()); +#else + return make_float4(0.0f, 0.0f, 0.0f, 0.0f); +#endif +} + +ccl_device_inline float4 one_float4() +{ + return make_float4(1.0f, 1.0f, 1.0f, 1.0f); +} + +#if !defined(__KERNEL_METAL__) +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 float4(_mm_div_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 float f) +{ + return a + make_float4(f, f, f, f); +} + +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 float f) +{ + return a - make_float4(f, f, f, f); +} + +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, const float4 &b) +{ + return a = a * b; +} + +ccl_device_inline float4 operator*=(float4 &a, float f) +{ + return a = a * f; +} + +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__ + return int4(_mm_castps_si128(_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__ + return int4(_mm_castps_si128(_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__ + return int4(_mm_castps_si128(_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 distance(const float4 &a, const float4 &b) +{ + return len(a - b); +} + +ccl_device_inline float dot(const float4 &a, const float4 &b) +{ +# if defined(__KERNEL_SSE41__) && defined(__KERNEL_SSE__) +# if defined(__KERNEL_NEON__) + __m128 t = vmulq_f32(a, b); + return vaddvq_f32(t); +# else + return _mm_cvtss_f32(_mm_dp_ps(a, b, 0xFF)); +# endif +# 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__ + /* Don't use _mm_rcp_ps due to poor precision. */ + return float4(_mm_div_ps(_mm_set_ps1(1.0f), a.m128)); +# 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 sqrt(const float4 &a) +{ +# ifdef __KERNEL_SSE__ + return float4(_mm_sqrt_ps(a.m128)); +# else + return make_float4(sqrtf(a.x), sqrtf(a.y), sqrtf(a.z), sqrtf(a.w)); +# endif +} + +ccl_device_inline float4 sqr(const float4 &a) +{ + return a * a; +} + +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 float4 reduce_add(const float4 &a) +{ +# if defined(__KERNEL_SSE__) +# if defined(__KERNEL_NEON__) + return float4(vdupq_n_f32(vaddvq_f32(a))); +# elif defined(__KERNEL_SSE3__) + float4 h(_mm_hadd_ps(a.m128, a.m128)); + return float4(_mm_hadd_ps(h.m128, h.m128)); +# else + float4 h(shuffle<1, 0, 3, 2>(a) + a); + return shuffle<2, 3, 0, 1>(h) + h; +# endif +# else + float sum = (a.x + a.y) + (a.z + a.w); + return make_float4(sum, sum, sum, sum); +# endif +} + +ccl_device_inline float average(const float4 &a) +{ + return reduce_add(a).x * 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 +} + +ccl_device_inline float4 clamp(const float4 &a, const float4 &mn, const float4 &mx) +{ + return min(max(a, mn), mx); +} + +ccl_device_inline float4 fabs(const float4 &a) +{ +# if defined(__KERNEL_SSE__) +# if defined(__KERNEL_NEON__) + return float4(vabsq_f32(a)); +# else + return float4(_mm_and_ps(a.m128, _mm_castsi128_ps(_mm_set1_epi32(0x7fffffff)))); +# endif +# else + return make_float4(fabsf(a.x), fabsf(a.y), fabsf(a.z), fabsf(a.w)); +# endif +} + +ccl_device_inline float4 floor(const float4 &a) +{ +# ifdef __KERNEL_SSE__ + return float4(_mm_floor_ps(a)); +# else + return make_float4(floorf(a.x), floorf(a.y), floorf(a.z), floorf(a.w)); +# endif +} + +ccl_device_inline float4 mix(const float4 &a, const float4 &b, float t) +{ + return a + t * (b - a); +} + +#endif /* !__KERNEL_METAL__*/ + +#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) +{ +# if defined(__KERNEL_NEON__) + return float4(shuffle_neon<__m128, index_0, index_1, index_2, index_3>(b.m128)); +# else + return float4(_mm_castsi128_ps( + _mm_shuffle_epi32(_mm_castps_si128(b), _MM_SHUFFLE(index_3, index_2, index_1, index_0)))); +# endif +} + +template<size_t index_0, size_t index_1, size_t index_2, size_t index_3> +__forceinline const float4 shuffle(const float4 &a, const float4 &b) +{ +# if defined(__KERNEL_NEON__) + return float4(shuffle_neon<__m128, index_0, index_1, index_2, index_3>(a.m128, b.m128)); +# else + return float4(_mm_shuffle_ps(a.m128, b.m128, _MM_SHUFFLE(index_3, index_2, index_1, index_0))); +# endif +} + +template<> __forceinline const float4 shuffle<0, 1, 0, 1>(const float4 &b) +{ + return float4(_mm_castpd_ps(_mm_movedup_pd(_mm_castps_pd(b)))); +} + +template<> __forceinline const float4 shuffle<0, 1, 0, 1>(const float4 &a, const float4 &b) +{ + return float4(_mm_movelh_ps(a.m128, b.m128)); +} + +template<> __forceinline const float4 shuffle<2, 3, 2, 3>(const float4 &a, const float4 &b) +{ + return float4(_mm_movehl_ps(b.m128, a.m128)); +} + +# 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__ + return float4(_mm_blendv_ps(b.m128, a.m128, _mm_castsi128_ps(mask.m128))); +# 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 mask(const int4 &mask, const float4 &a) +{ + /* Replace elements of x with zero where mask isn't set. */ + return select(mask, a, make_float4(0.0f)); +} + +ccl_device_inline float4 reduce_min(const float4 &a) +{ +# if defined(__KERNEL_SSE__) +# if defined(__KERNEL_NEON__) + return float4(vdupq_n_f32(vminvq_f32(a))); +# else + float4 h = min(shuffle<1, 0, 3, 2>(a), a); + return min(shuffle<2, 3, 0, 1>(h), h); +# endif +# 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) +{ +# if defined(__KERNEL_SSE__) +# if defined(__KERNEL_NEON__) + return float4(vdupq_n_f32(vmaxvq_f32(a))); +# else + float4 h = max(shuffle<1, 0, 3, 2>(a), a); + return max(shuffle<2, 3, 0, 1>(h), h); +# endif +# else + return make_float4(max(max(a.x, a.y), max(a.z, a.w))); +# endif +} + +ccl_device_inline float4 load_float4(ccl_private const float *v) +{ +# ifdef __KERNEL_SSE__ + return float4(_mm_loadu_ps(v)); +# else + return make_float4(v[0], v[1], v[2], v[3]); +# endif +} + +#endif /* !__KERNEL_GPU__ */ + +ccl_device_inline float4 safe_divide_float4_float(const float4 a, const float b) +{ + return (b != 0.0f) ? a / b : zero_float4(); +} + +ccl_device_inline bool isfinite4_safe(float4 v) +{ + return isfinite_safe(v.x) && isfinite_safe(v.y) && isfinite_safe(v.z) && isfinite_safe(v.w); +} + +ccl_device_inline float4 ensure_finite4(float4 v) +{ + if (!isfinite_safe(v.x)) + v.x = 0.0f; + if (!isfinite_safe(v.y)) + v.y = 0.0f; + if (!isfinite_safe(v.z)) + v.z = 0.0f; + if (!isfinite_safe(v.w)) + v.w = 0.0f; + return v; +} + +CCL_NAMESPACE_END + +#endif /* __UTIL_MATH_FLOAT4_H__ */ |