forked from bartvdbraak/blender
Brecht Van Lommel
db7f9a70b0
Float2 are now a new type for attributes in Cycles. Before, the choices for attribute storage were float and float3, the latter padded to float4. This meant that UV maps were inflated to twice the size necessary. Reviewers: brecht, sergey Reviewed By: brecht Subscribers: #cycles Tags: #cycles Differential Revision: https://developer.blender.org/D4409
234 lines
6.0 KiB
C
234 lines
6.0 KiB
C
/*
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* Copyright 2011-2017 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __UTIL_MATH_FLOAT2_H__
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#define __UTIL_MATH_FLOAT2_H__
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#ifndef __UTIL_MATH_H__
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# error "Do not include this file directly, include util_types.h instead."
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#endif
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CCL_NAMESPACE_BEGIN
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/*******************************************************************************
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* Declaration.
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*/
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#ifndef __KERNEL_OPENCL__
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ccl_device_inline float2 operator-(const float2& a);
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ccl_device_inline float2 operator*(const float2& a, const float2& b);
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ccl_device_inline float2 operator*(const float2& a, float f);
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ccl_device_inline float2 operator*(float f, const float2& a);
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ccl_device_inline float2 operator/(float f, const float2& a);
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ccl_device_inline float2 operator/(const float2& a, float f);
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ccl_device_inline float2 operator/(const float2& a, const float2& b);
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ccl_device_inline float2 operator+(const float2& a, const float2& b);
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ccl_device_inline float2 operator-(const float2& a, const float2& b);
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ccl_device_inline float2 operator+=(float2& a, const float2& b);
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ccl_device_inline float2 operator*=(float2& a, const float2& b);
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ccl_device_inline float2 operator*=(float2& a, float f);
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ccl_device_inline float2 operator/=(float2& a, const float2& b);
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ccl_device_inline float2 operator/=(float2& a, float f);
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ccl_device_inline bool operator==(const float2& a, const float2& b);
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ccl_device_inline bool operator!=(const float2& a, const float2& b);
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ccl_device_inline bool is_zero(const float2& a);
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ccl_device_inline float average(const float2& a);
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ccl_device_inline float dot(const float2& a, const float2& b);
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ccl_device_inline float cross(const float2& a, const float2& b);
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ccl_device_inline float len(const float2& a);
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ccl_device_inline float2 normalize(const float2& a);
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ccl_device_inline float2 normalize_len(const float2& a, float *t);
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ccl_device_inline float2 safe_normalize(const float2& a);
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ccl_device_inline float2 min(const float2& a, const float2& b);
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ccl_device_inline float2 max(const float2& a, const float2& b);
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ccl_device_inline float2 clamp(const float2& a, const float2& mn, const float2& mx);
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ccl_device_inline float2 fabs(const float2& a);
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ccl_device_inline float2 as_float2(const float4& a);
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ccl_device_inline float2 interp(const float2& a, const float2& b, float t);
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#endif /* !__KERNEL_OPENCL__ */
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/*******************************************************************************
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* Definition.
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*/
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#ifndef __KERNEL_OPENCL__
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ccl_device_inline float2 operator-(const float2& a)
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{
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return make_float2(-a.x, -a.y);
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}
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ccl_device_inline float2 operator*(const float2& a, const float2& b)
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{
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return make_float2(a.x*b.x, a.y*b.y);
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}
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ccl_device_inline float2 operator*(const float2& a, float f)
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{
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return make_float2(a.x*f, a.y*f);
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}
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ccl_device_inline float2 operator*(float f, const float2& a)
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{
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return make_float2(a.x*f, a.y*f);
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}
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ccl_device_inline float2 operator/(float f, const float2& a)
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{
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return make_float2(f/a.x, f/a.y);
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}
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ccl_device_inline float2 operator/(const float2& a, float f)
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{
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float invf = 1.0f/f;
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return make_float2(a.x*invf, a.y*invf);
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}
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ccl_device_inline float2 operator/(const float2& a, const float2& b)
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{
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return make_float2(a.x/b.x, a.y/b.y);
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}
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ccl_device_inline float2 operator+(const float2& a, const float2& b)
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{
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return make_float2(a.x+b.x, a.y+b.y);
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}
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ccl_device_inline float2 operator-(const float2& a, const float2& b)
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{
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return make_float2(a.x-b.x, a.y-b.y);
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}
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ccl_device_inline float2 operator+=(float2& a, const float2& b)
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{
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return a = a + b;
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}
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ccl_device_inline float2 operator*=(float2& a, const float2& b)
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{
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return a = a * b;
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}
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ccl_device_inline float2 operator*=(float2& a, float f)
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{
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return a = a * f;
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}
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ccl_device_inline float2 operator/=(float2& a, const float2& b)
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{
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return a = a / b;
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}
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ccl_device_inline float2 operator/=(float2& a, float f)
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{
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float invf = 1.0f/f;
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return a = a * invf;
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}
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ccl_device_inline bool operator==(const float2& a, const float2& b)
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{
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return (a.x == b.x && a.y == b.y);
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}
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ccl_device_inline bool operator!=(const float2& a, const float2& b)
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{
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return !(a == b);
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}
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ccl_device_inline bool is_zero(const float2& a)
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{
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return (a.x == 0.0f && a.y == 0.0f);
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}
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ccl_device_inline float average(const float2& a)
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{
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return (a.x + a.y)*(1.0f/2.0f);
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}
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ccl_device_inline float dot(const float2& a, const float2& b)
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{
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return a.x*b.x + a.y*b.y;
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}
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ccl_device_inline float cross(const float2& a, const float2& b)
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{
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return (a.x*b.y - a.y*b.x);
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}
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ccl_device_inline float len(const float2& a)
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{
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return sqrtf(dot(a, a));
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}
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ccl_device_inline float2 normalize(const float2& a)
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{
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return a/len(a);
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}
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ccl_device_inline float2 normalize_len(const float2& a, float *t)
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{
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*t = len(a);
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return a/(*t);
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}
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ccl_device_inline float2 safe_normalize(const float2& a)
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{
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float t = len(a);
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return (t != 0.0f)? a/t: a;
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}
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ccl_device_inline float2 min(const float2& a, const float2& b)
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{
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return make_float2(min(a.x, b.x), min(a.y, b.y));
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}
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ccl_device_inline float2 max(const float2& a, const float2& b)
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{
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return make_float2(max(a.x, b.x), max(a.y, b.y));
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}
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ccl_device_inline float2 clamp(const float2& a, const float2& mn, const float2& mx)
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{
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return min(max(a, mn), mx);
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}
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ccl_device_inline float2 fabs(const float2& a)
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{
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return make_float2(fabsf(a.x), fabsf(a.y));
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}
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ccl_device_inline float2 as_float2(const float4& a)
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{
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return make_float2(a.x, a.y);
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}
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ccl_device_inline float2 interp(const float2& a, const float2& b, float t)
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{
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return a + t*(b - a);
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}
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ccl_device_inline float2 mix(const float2& a, const float2& b, float t)
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{
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return a + t*(b - a);
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}
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#endif /* !__KERNEL_OPENCL__ */
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CCL_NAMESPACE_END
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#endif /* __UTIL_MATH_FLOAT2_H__ */
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