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/*
* Copyright (C) 2016 The Android Open Source Project
*
* 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.
*/
// Don't edit this file! It is auto-generated by frameworks/rs/api/generate.sh.
/*
* rs_vector_math.rsh: Vector Math Functions
*
* These functions interpret the input arguments as representation of vectors in
* n-dimensional space.
*
* The precision of the mathematical operations on 32 bit floats is affected by the pragmas
* rs_fp_relaxed and rs_fp_full. See Mathematical Constants and Functions for details.
*
* Different precision/speed tradeoffs can be achieved by using variants of the common math
* functions. Functions with a name starting with
* - native_: May have custom hardware implementations with weaker precision. Additionally,
* subnormal values may be flushed to zero, rounding towards zero may be used, and NaN and
* infinity input may not be handled correctly.
* - fast_: May perform internal computations using 16 bit floats. Additionally, subnormal
* values may be flushed to zero, and rounding towards zero may be used.
*
*/
#ifndef RENDERSCRIPT_RS_VECTOR_MATH_RSH
#define RENDERSCRIPT_RS_VECTOR_MATH_RSH
/*
* cross: Cross product of two vectors
*
* Computes the cross product of two vectors.
*/
extern float3 __attribute__((const, overloadable))
cross(float3 left_vector, float3 right_vector);
extern float4 __attribute__((const, overloadable))
cross(float4 left_vector, float4 right_vector);
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half3 __attribute__((const, overloadable))
cross(half3 left_vector, half3 right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half4 __attribute__((const, overloadable))
cross(half4 left_vector, half4 right_vector);
#endif
/*
* distance: Distance between two points
*
* Compute the distance between two points.
*
* See also fast_distance(), native_distance().
*/
extern float __attribute__((const, overloadable))
distance(float left_vector, float right_vector);
extern float __attribute__((const, overloadable))
distance(float2 left_vector, float2 right_vector);
extern float __attribute__((const, overloadable))
distance(float3 left_vector, float3 right_vector);
extern float __attribute__((const, overloadable))
distance(float4 left_vector, float4 right_vector);
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
distance(half left_vector, half right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
distance(half2 left_vector, half2 right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
distance(half3 left_vector, half3 right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
distance(half4 left_vector, half4 right_vector);
#endif
/*
* dot: Dot product of two vectors
*
* Computes the dot product of two vectors.
*/
extern float __attribute__((const, overloadable))
dot(float left_vector, float right_vector);
extern float __attribute__((const, overloadable))
dot(float2 left_vector, float2 right_vector);
extern float __attribute__((const, overloadable))
dot(float3 left_vector, float3 right_vector);
extern float __attribute__((const, overloadable))
dot(float4 left_vector, float4 right_vector);
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
dot(half left_vector, half right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
dot(half2 left_vector, half2 right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
dot(half3 left_vector, half3 right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
dot(half4 left_vector, half4 right_vector);
#endif
/*
* fast_distance: Approximate distance between two points
*
* Computes the approximate distance between two points.
*
* The precision is what would be expected from doing the computation using 16 bit floating
* point values.
*
* See also distance(), native_distance().
*/
#if (defined(RS_VERSION) && (RS_VERSION >= 17))
extern float __attribute__((const, overloadable))
fast_distance(float left_vector, float right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 17))
extern float __attribute__((const, overloadable))
fast_distance(float2 left_vector, float2 right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 17))
extern float __attribute__((const, overloadable))
fast_distance(float3 left_vector, float3 right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 17))
extern float __attribute__((const, overloadable))
fast_distance(float4 left_vector, float4 right_vector);
#endif
/*
* fast_length: Approximate length of a vector
*
* Computes the approximate length of a vector.
*
* The precision is what would be expected from doing the computation using 16 bit floating
* point values.
*
* See also length(), native_length().
*/
#if (defined(RS_VERSION) && (RS_VERSION >= 17))
extern float __attribute__((const, overloadable))
fast_length(float v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 17))
extern float __attribute__((const, overloadable))
fast_length(float2 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 17))
extern float __attribute__((const, overloadable))
fast_length(float3 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 17))
extern float __attribute__((const, overloadable))
fast_length(float4 v);
#endif
/*
* fast_normalize: Approximate normalized vector
*
* Approximately normalizes a vector.
*
* For vectors of size 1, returns -1.f for negative values, 0.f for null values, and 1.f for
* positive values.
*
* The precision is what would be expected from doing the computation using 16 bit floating
* point values.
*
* See also normalize(), native_normalize().
*/
#if (defined(RS_VERSION) && (RS_VERSION >= 17))
extern float __attribute__((const, overloadable))
fast_normalize(float v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 17))
extern float2 __attribute__((const, overloadable))
fast_normalize(float2 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 17))
extern float3 __attribute__((const, overloadable))
fast_normalize(float3 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 17))
extern float4 __attribute__((const, overloadable))
fast_normalize(float4 v);
#endif
/*
* length: Length of a vector
*
* Computes the length of a vector.
*
* See also fast_length(), native_length().
*/
extern float __attribute__((const, overloadable))
length(float v);
extern float __attribute__((const, overloadable))
length(float2 v);
extern float __attribute__((const, overloadable))
length(float3 v);
extern float __attribute__((const, overloadable))
length(float4 v);
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
length(half v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
length(half2 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
length(half3 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
length(half4 v);
#endif
/*
* native_distance: Approximate distance between two points
*
* Computes the approximate distance between two points.
*
* See also distance(), fast_distance().
*/
#if (defined(RS_VERSION) && (RS_VERSION >= 21))
extern float __attribute__((const, overloadable))
native_distance(float left_vector, float right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 21))
extern float __attribute__((const, overloadable))
native_distance(float2 left_vector, float2 right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 21))
extern float __attribute__((const, overloadable))
native_distance(float3 left_vector, float3 right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 21))
extern float __attribute__((const, overloadable))
native_distance(float4 left_vector, float4 right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
native_distance(half left_vector, half right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
native_distance(half2 left_vector, half2 right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
native_distance(half3 left_vector, half3 right_vector);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
native_distance(half4 left_vector, half4 right_vector);
#endif
/*
* native_length: Approximate length of a vector
*
* Compute the approximate length of a vector.
*
* See also length(), fast_length().
*/
#if (defined(RS_VERSION) && (RS_VERSION >= 21))
extern float __attribute__((const, overloadable))
native_length(float v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 21))
extern float __attribute__((const, overloadable))
native_length(float2 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 21))
extern float __attribute__((const, overloadable))
native_length(float3 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 21))
extern float __attribute__((const, overloadable))
native_length(float4 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
native_length(half v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
native_length(half2 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
native_length(half3 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
native_length(half4 v);
#endif
/*
* native_normalize: Approximately normalize a vector
*
* Approximately normalizes a vector.
*
* See also normalize(), fast_normalize().
*/
#if (defined(RS_VERSION) && (RS_VERSION >= 21))
extern float __attribute__((const, overloadable))
native_normalize(float v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 21))
extern float2 __attribute__((const, overloadable))
native_normalize(float2 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 21))
extern float3 __attribute__((const, overloadable))
native_normalize(float3 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 21))
extern float4 __attribute__((const, overloadable))
native_normalize(float4 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
native_normalize(half v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half2 __attribute__((const, overloadable))
native_normalize(half2 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half3 __attribute__((const, overloadable))
native_normalize(half3 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half4 __attribute__((const, overloadable))
native_normalize(half4 v);
#endif
/*
* normalize: Normalize a vector
*
* Normalize a vector.
*
* For vectors of size 1, returns -1.f for negative values, 0.f for null values, and 1.f for
* positive values.
*
* See also fast_normalize(), native_normalize().
*/
extern float __attribute__((const, overloadable))
normalize(float v);
extern float2 __attribute__((const, overloadable))
normalize(float2 v);
extern float3 __attribute__((const, overloadable))
normalize(float3 v);
extern float4 __attribute__((const, overloadable))
normalize(float4 v);
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half __attribute__((const, overloadable))
normalize(half v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half2 __attribute__((const, overloadable))
normalize(half2 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half3 __attribute__((const, overloadable))
normalize(half3 v);
#endif
#if (defined(RS_VERSION) && (RS_VERSION >= 24))
extern half4 __attribute__((const, overloadable))
normalize(half4 v);
#endif
#endif // RENDERSCRIPT_RS_VECTOR_MATH_RSH
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