alunizaje/android/tools/android-osx/build-tools/19.1.0/renderscript/include/rs_cl.rsh

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2016-11-03 00:05:36 +01:00
/*
* Copyright (C) 2011-2012 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.
*/
/** @file rs_cl.rsh
* \brief Basic math functions
*
*
*/
#ifndef __RS_CL_RSH__
#define __RS_CL_RSH__
// Conversions
#define CVT_FUNC_2(typeout, typein) \
_RS_RUNTIME typeout##2 __attribute__((const, overloadable)) \
convert_##typeout##2(typein##2 v); \
_RS_RUNTIME typeout##3 __attribute__((const, overloadable)) \
convert_##typeout##3(typein##3 v); \
_RS_RUNTIME typeout##4 __attribute__((const, overloadable)) \
convert_##typeout##4(typein##4 v);
#define CVT_FUNC(type) CVT_FUNC_2(type, uchar) \
CVT_FUNC_2(type, char) \
CVT_FUNC_2(type, ushort) \
CVT_FUNC_2(type, short) \
CVT_FUNC_2(type, uint) \
CVT_FUNC_2(type, int) \
CVT_FUNC_2(type, float)
/**
* Convert to char.
*
* Supports 2,3,4 components of uchar, char, ushort, short, uint, int, float.
*/
CVT_FUNC(char)
/**
* Convert to unsigned char.
*
* Supports 2,3,4 components of uchar, char, ushort, short, uint, int, float.
*/
CVT_FUNC(uchar)
/**
* Convert to short.
*
* Supports 2,3,4 components of uchar, char, ushort, short, uint, int, float.
*/
CVT_FUNC(short)
/**
* Convert to unsigned short.
*
* Supports 2,3,4 components of uchar, char, ushort, short, uint, int, float.
*/
CVT_FUNC(ushort)
/**
* Convert to int.
*
* Supports 2,3,4 components of uchar, char, ushort, short, uint, int, float.
*/
CVT_FUNC(int)
/**
* Convert to unsigned int.
*
* Supports 2,3,4 components of uchar, char, ushort, short, uint, int, float.
*/
CVT_FUNC(uint)
/**
* Convert to float.
*
* Supports 2,3,4 components of uchar, char, ushort, short, uint, int, float.
*/
CVT_FUNC(float)
// Float ops, 6.11.2
#ifdef DOXYGEN
#define FN_FUNC_FN(fnc)
#define F_FUNC_FN(fnc)
#define IN_FUNC_FN(fnc)
#define FN_FUNC_FN_FN(fnc)
#define F_FUNC_FN_FN(fnc)
#define FN_FUNC_FN_F(fnc)
#define FN_FUNC_FN_IN(fnc)
#define FN_FUNC_FN_I(fnc)
#define FN_FUNC_FN_PFN(fnc)
#define FN_FUNC_FN_PIN(fnc)
#define FN_FUNC_FN_FN_FN(fnc)
#define FN_FUNC_FN_FN_F(fnc)
#define FN_FUNC_FN_F_F(fnc)
#define FN_FUNC_FN_FN_PIN(fnc)
#else
#define FN_FUNC_FN(fnc) \
_RS_RUNTIME float2 __attribute__((const, overloadable)) fnc(float2 v); \
_RS_RUNTIME float3 __attribute__((const, overloadable)) fnc(float3 v); \
_RS_RUNTIME float4 __attribute__((const, overloadable)) fnc(float4 v);
#define F_FUNC_FN(fnc) \
_RS_RUNTIME float __attribute__((const, overloadable)) fnc(float2 v); \
_RS_RUNTIME float __attribute__((const, overloadable)) fnc(float3 v); \
_RS_RUNTIME float __attribute__((const, overloadable)) fnc(float4 v);
#define IN_FUNC_FN(fnc) \
_RS_RUNTIME int2 __attribute__((const, overloadable)) fnc(float2 v); \
_RS_RUNTIME int3 __attribute__((const, overloadable)) fnc(float3 v); \
_RS_RUNTIME int4 __attribute__((const, overloadable)) fnc(float4 v);
#define FN_FUNC_FN_FN(fnc) \
_RS_RUNTIME float2 __attribute__((const, overloadable)) fnc(float2 v1, float2 v2); \
_RS_RUNTIME float3 __attribute__((const, overloadable)) fnc(float3 v1, float3 v2); \
_RS_RUNTIME float4 __attribute__((const, overloadable)) fnc(float4 v1, float4 v2);
#define F_FUNC_FN_FN(fnc) \
_RS_RUNTIME float __attribute__((const, overloadable)) fnc(float2 v1, float2 v2); \
_RS_RUNTIME float __attribute__((const, overloadable)) fnc(float3 v1, float3 v2); \
_RS_RUNTIME float __attribute__((const, overloadable)) fnc(float4 v1, float4 v2);
#define FN_FUNC_FN_F(fnc) \
_RS_RUNTIME float2 __attribute__((const, overloadable)) fnc(float2 v1, float v2); \
_RS_RUNTIME float3 __attribute__((const, overloadable)) fnc(float3 v1, float v2); \
_RS_RUNTIME float4 __attribute__((const, overloadable)) fnc(float4 v1, float v2);
#define FN_FUNC_FN_IN(fnc) \
_RS_RUNTIME float2 __attribute__((const, overloadable)) fnc(float2 v1, int2 v2); \
_RS_RUNTIME float3 __attribute__((const, overloadable)) fnc(float3 v1, int3 v2); \
_RS_RUNTIME float4 __attribute__((const, overloadable)) fnc(float4 v1, int4 v2);
#define FN_FUNC_FN_I(fnc) \
_RS_RUNTIME float2 __attribute__((const, overloadable)) fnc(float2 v1, int v2); \
_RS_RUNTIME float3 __attribute__((const, overloadable)) fnc(float3 v1, int v2); \
_RS_RUNTIME float4 __attribute__((const, overloadable)) fnc(float4 v1, int v2);
#define FN_FUNC_FN_PFN(fnc) \
_RS_RUNTIME float2 __attribute__((pure, overloadable)) \
fnc(float2 v1, float2 *v2); \
_RS_RUNTIME float3 __attribute__((pure, overloadable)) \
fnc(float3 v1, float3 *v2); \
_RS_RUNTIME float4 __attribute__((pure, overloadable)) \
fnc(float4 v1, float4 *v2);
#define FN_FUNC_FN_PIN(fnc) \
_RS_RUNTIME float2 __attribute__((pure, overloadable)) fnc(float2 v1, int2 *v2); \
_RS_RUNTIME float3 __attribute__((pure, overloadable)) fnc(float3 v1, int3 *v2); \
_RS_RUNTIME float4 __attribute__((pure, overloadable)) fnc(float4 v1, int4 *v2);
#define FN_FUNC_FN_FN_FN(fnc) \
_RS_RUNTIME float2 __attribute__((const, overloadable)) \
fnc(float2 v1, float2 v2, float2 v3); \
_RS_RUNTIME float3 __attribute__((const, overloadable)) \
fnc(float3 v1, float3 v2, float3 v3); \
_RS_RUNTIME float4 __attribute__((const, overloadable)) \
fnc(float4 v1, float4 v2, float4 v3);
#define FN_FUNC_FN_FN_F(fnc) \
_RS_RUNTIME float2 __attribute__((const, overloadable)) \
fnc(float2 v1, float2 v2, float v3); \
_RS_RUNTIME float3 __attribute__((const, overloadable)) \
fnc(float3 v1, float3 v2, float v3); \
_RS_RUNTIME float4 __attribute__((const, overloadable)) \
fnc(float4 v1, float4 v2, float v3);
#define FN_FUNC_FN_F_F(fnc) \
_RS_RUNTIME float2 __attribute__((const, overloadable)) \
fnc(float2 v1, float v2, float v3); \
_RS_RUNTIME float3 __attribute__((const, overloadable)) \
fnc(float3 v1, float v2, float v3); \
_RS_RUNTIME float4 __attribute__((const, overloadable)) \
fnc(float4 v1, float v2, float v3);
#define FN_FUNC_FN_FN_PIN(fnc) \
_RS_RUNTIME float2 __attribute__((pure, overloadable)) \
fnc(float2 v1, float2 v2, int2 *v3); \
_RS_RUNTIME float3 __attribute__((pure, overloadable)) \
fnc(float3 v1, float3 v2, int3 *v3); \
_RS_RUNTIME float4 __attribute__((pure, overloadable)) \
fnc(float4 v1, float4 v2, int4 *v3);
#endif // DOXYGEN
/**
* Return the inverse cosine.
*
* Supports float, float2, float3, float4
*/
extern float __attribute__((const, overloadable)) acos(float);
FN_FUNC_FN(acos)
/**
* Return the inverse hyperbolic cosine.
*
* Supports float, float2, float3, float4
*/
extern float __attribute__((const, overloadable)) acosh(float);
FN_FUNC_FN(acosh)
/**
* Return the inverse cosine divided by PI.
*
* Supports float, float2, float3, float4
*/
_RS_RUNTIME float __attribute__((const, overloadable)) acospi(float v);
FN_FUNC_FN(acospi)
/**
* Return the inverse sine.
*
* Supports float, float2, float3, float4
*/
extern float __attribute__((const, overloadable)) asin(float);
FN_FUNC_FN(asin)
/**
* Return the inverse hyperbolic sine.
*
* Supports float, float2, float3, float4
*/
extern float __attribute__((const, overloadable)) asinh(float);
FN_FUNC_FN(asinh)
/**
* Return the inverse sine divided by PI.
*
* Supports float, float2, float3, float4
*/
_RS_RUNTIME float __attribute__((const, overloadable)) asinpi(float v);
FN_FUNC_FN(asinpi)
/**
* Return the inverse tangent.
*
* Supports float, float2, float3, float4
*/
extern float __attribute__((const, overloadable)) atan(float);
FN_FUNC_FN(atan)
/**
* Return the inverse tangent of y / x.
*
* Supports float, float2, float3, float4. Both arguments must be of the same
* type.
*
* @param y
* @param x
*/
extern float __attribute__((const, overloadable)) atan2(float y, float x);
FN_FUNC_FN_FN(atan2)
/**
* Return the inverse hyperbolic tangent.
*
* Supports float, float2, float3, float4
*/
extern float __attribute__((const, overloadable)) atanh(float);
FN_FUNC_FN(atanh)
/**
* Return the inverse tangent divided by PI.
*
* Supports float, float2, float3, float4
*/
_RS_RUNTIME float __attribute__((const, overloadable)) atanpi(float v);
FN_FUNC_FN(atanpi)
/**
* Return the inverse tangent of y / x, divided by PI.
*
* Supports float, float2, float3, float4. Both arguments must be of the same
* type.
*
* @param y
* @param x
*/
_RS_RUNTIME float __attribute__((const, overloadable)) atan2pi(float y, float x);
FN_FUNC_FN_FN(atan2pi)
/**
* Return the cube root.
*
* Supports float, float2, float3, float4.
*/
extern float __attribute__((const, overloadable)) cbrt(float);
FN_FUNC_FN(cbrt)
/**
* Return the smallest integer not less than a value.
*
* Supports float, float2, float3, float4.
*/
extern float __attribute__((const, overloadable)) ceil(float);
FN_FUNC_FN(ceil)
/**
* Copy the sign bit from y to x.
*
* Supports float, float2, float3, float4. Both arguments must be of the same
* type.
*
* @param x
* @param y
*/
extern float __attribute__((const, overloadable)) copysign(float x, float y);
FN_FUNC_FN_FN(copysign)
/**
* Return the cosine.
*
* Supports float, float2, float3, float4.
*/
extern float __attribute__((const, overloadable)) cos(float);
FN_FUNC_FN(cos)
/**
* Return the hypebolic cosine.
*
* Supports float, float2, float3, float4.
*/
extern float __attribute__((const, overloadable)) cosh(float);
FN_FUNC_FN(cosh)
/**
* Return the cosine of the value * PI.
*
* Supports float, float2, float3, float4.
*/
_RS_RUNTIME float __attribute__((const, overloadable)) cospi(float v);
FN_FUNC_FN(cospi)
/**
* Return the complementary error function.
*
* Supports float, float2, float3, float4.
*/
extern float __attribute__((const, overloadable)) erfc(float);
FN_FUNC_FN(erfc)
/**
* Return the error function.
*
* Supports float, float2, float3, float4.
*/
extern float __attribute__((const, overloadable)) erf(float);
FN_FUNC_FN(erf)
/**
* Return e ^ value.
*
* Supports float, float2, float3, float4.
*/
extern float __attribute__((const, overloadable)) exp(float);
FN_FUNC_FN(exp)
/**
* Return 2 ^ value.
*
* Supports float, float2, float3, float4.
*/
extern float __attribute__((const, overloadable)) exp2(float);
FN_FUNC_FN(exp2)
/**
* Return x ^ y.
*
* Supports float, float2, float3, float4. Both arguments must be of the same
* type.
*/
extern float __attribute__((const, overloadable)) pow(float x, float y);
FN_FUNC_FN_FN(pow)
/**
* Return 10 ^ value.
*
* Supports float, float2, float3, float4.
*/
_RS_RUNTIME float __attribute__((const, overloadable)) exp10(float v);
FN_FUNC_FN(exp10)
/**
* Return (e ^ value) - 1.
*
* Supports float, float2, float3, float4.
*/
extern float __attribute__((const, overloadable)) expm1(float);
FN_FUNC_FN(expm1)
/**
* Return the absolute value of a value.
*
* Supports float, float2, float3, float4.
*/
extern float __attribute__((const, overloadable)) fabs(float);
FN_FUNC_FN(fabs)
/**
* Return the positive difference between two values.
*
* Supports float, float2, float3, float4. Both arguments must be of the same
* type.
*/
extern float __attribute__((const, overloadable)) fdim(float, float);
FN_FUNC_FN_FN(fdim)
/**
* Return the smallest integer not greater than a value.
*
* Supports float, float2, float3, float4.
*/
extern float __attribute__((const, overloadable)) floor(float);
FN_FUNC_FN(floor)
/**
* Return a*b + c.
*
* Supports float, float2, float3, float4.
*/
extern float __attribute__((const, overloadable)) fma(float a, float b, float c);
FN_FUNC_FN_FN_FN(fma)
/**
* Return (x < y ? y : x)
*
* Supports float, float2, float3, float4.
* @param x: may be float, float2, float3, float4
* @param y: may be float or vector. If vector must match type of x.
*/
extern float __attribute__((const, overloadable)) fmax(float x, float y);
FN_FUNC_FN_FN(fmax);
FN_FUNC_FN_F(fmax);
/**
* Return (x > y ? y : x)
*
* @param x: may be float, float2, float3, float4
* @param y: may be float or vector. If vector must match type of x.
*/
extern float __attribute__((const, overloadable)) fmin(float x, float y);
FN_FUNC_FN_FN(fmin);
FN_FUNC_FN_F(fmin);
/**
* Return the remainder from x / y
*
* Supports float, float2, float3, float4.
*/
extern float __attribute__((const, overloadable)) fmod(float x, float y);
FN_FUNC_FN_FN(fmod)
/**
* Return fractional part of v
*
* @param iptr iptr[0] will be set to the floor of the input value.
* Supports float, float2, float3, float4.
*/
_RS_RUNTIME float __attribute__((pure, overloadable)) fract(float v, float *iptr);
FN_FUNC_FN_PFN(fract)
/**
* Return fractional part of v
*
* Supports float, float2, float3, float4.
*/
static inline float __attribute__((const, overloadable)) fract(float v) {
float unused;
return fract(v, &unused);
}
static inline float2 __attribute__((const, overloadable)) fract(float2 v) {
float2 unused;
return fract(v, &unused);
}
static inline float3 __attribute__((const, overloadable)) fract(float3 v) {
float3 unused;
return fract(v, &unused);
}
static inline float4 __attribute__((const, overloadable)) fract(float4 v) {
float4 unused;
return fract(v, &unused);
}
/**
* Return the mantissa and place the exponent into iptr[0]
*
* @param v Supports float, float2, float3, float4.
* @param iptr Must have the same vector size as v.
*/
extern float __attribute__((pure, overloadable)) frexp(float v, int *iptr);
FN_FUNC_FN_PIN(frexp)
/**
* Return sqrt(x*x + y*y)
*
* Supports float, float2, float3, float4.
*/
extern float __attribute__((const, overloadable)) hypot(float x, float y);
FN_FUNC_FN_FN(hypot)
/**
* Return the integer exponent of a value
*
* Supports 1,2,3,4 components
*/
extern int __attribute__((const, overloadable)) ilogb(float);
IN_FUNC_FN(ilogb)
/**
* Return (x * 2^y)
*
* @param x Supports 1,2,3,4 components
* @param y Supports single component or matching vector.
*/
extern float __attribute__((const, overloadable)) ldexp(float x, int y);
FN_FUNC_FN_IN(ldexp)
FN_FUNC_FN_I(ldexp)
/**
* Return the log gamma
*
* Supports 1,2,3,4 components
*/
extern float __attribute__((const, overloadable)) lgamma(float);
FN_FUNC_FN(lgamma)
/**
* Return the log gamma and sign
*
* @param x Supports 1,2,3,4 components
* @param y Supports matching vector.
*/
extern float __attribute__((pure, overloadable)) lgamma(float x, int* y);
FN_FUNC_FN_PIN(lgamma)
/**
* Return the natural logarithm
*
* Supports 1,2,3,4 components
*/
extern float __attribute__((const, overloadable)) log(float);
FN_FUNC_FN(log)
/**
* Return the base 10 logarithm
*
* Supports 1,2,3,4 components
*/
extern float __attribute__((const, overloadable)) log10(float);
FN_FUNC_FN(log10)
/**
* Return the base 2 logarithm
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) log2(float v);
FN_FUNC_FN(log2)
/**
* Return the natural logarithm of (v + 1.0f)
*
* Supports 1,2,3,4 components
*/
extern float __attribute__((const, overloadable)) log1p(float v);
FN_FUNC_FN(log1p)
/**
* Compute the exponent of the value.
*
* Supports 1,2,3,4 components
*/
extern float __attribute__((const, overloadable)) logb(float);
FN_FUNC_FN(logb)
/**
* Compute (a * b) + c
*
* Supports 1,2,3,4 components
*/
extern float __attribute__((const, overloadable)) mad(float a, float b, float c);
FN_FUNC_FN_FN_FN(mad)
/**
* Return the integral and fractional components of a number.
* Supports 1,2,3,4 components
*
* @param x Source value
* @param iret iret[0] will be set to the integral portion of the number.
* @return The floating point portion of the value.
*/
extern float __attribute__((pure, overloadable)) modf(float x, float *iret);
FN_FUNC_FN_PFN(modf);
extern float __attribute__((const, overloadable)) nan(uint);
/**
* Return the next floating point number from x towards y.
*
* Supports 1,2,3,4 components
*/
extern float __attribute__((const, overloadable)) nextafter(float x, float y);
FN_FUNC_FN_FN(nextafter)
/**
* Return (v ^ p).
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) pown(float v, int p);
FN_FUNC_FN_IN(pown)
/**
* Return (v ^ p).
* @param v must be greater than 0.
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) powr(float v, float p);
FN_FUNC_FN_FN(powr)
/**
* Return round x/y to the nearest integer then compute the remander.
*
* Supports 1,2,3,4 components
*/
extern float __attribute__((const, overloadable)) remainder(float x, float y);
FN_FUNC_FN_FN(remainder)
// document once we know the precision of bionic
extern float __attribute__((pure, overloadable)) remquo(float, float, int *);
FN_FUNC_FN_FN_PIN(remquo)
/**
* Round to the nearest integral value.
*
* Supports 1,2,3,4 components
*/
extern float __attribute__((const, overloadable)) rint(float);
FN_FUNC_FN(rint)
/**
* Compute the Nth root of a value.
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) rootn(float v, int n);
FN_FUNC_FN_IN(rootn)
/**
* Round to the nearest integral value. Half values are rounded away from zero.
*
* Supports 1,2,3,4 components
*/
extern float __attribute__((const, overloadable)) round(float);
FN_FUNC_FN(round)
/**
* Return the square root of a value.
*
* Supports 1,2,3,4 components
*/
extern float __attribute__((const, overloadable)) sqrt(float);
FN_FUNC_FN(sqrt)
/**
* Return (1 / sqrt(value)).
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) rsqrt(float v);
FN_FUNC_FN(rsqrt)
/**
* Return the sine of a value specified in radians.
*
* @param v The incoming value in radians
* Supports 1,2,3,4 components
*/
extern float __attribute__((const, overloadable)) sin(float v);
FN_FUNC_FN(sin)
/**
* Return the sine and cosine of a value.
*
* @return sine
* @param v The incoming value in radians
* @param *cosptr cosptr[0] will be set to the cosine value.
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((pure, overloadable)) sincos(float v, float *cosptr);
FN_FUNC_FN_PFN(sincos);
/**
* Return the hyperbolic sine of a value specified in radians.
*
* Supports 1,2,3,4 components
*/
extern float __attribute__((const, overloadable)) sinh(float);
FN_FUNC_FN(sinh)
/**
* Return the sin(v * PI).
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) sinpi(float v);
FN_FUNC_FN(sinpi)
/**
* Return the tangent of a value.
*
* Supports 1,2,3,4 components
* @param v The incoming value in radians
*/
extern float __attribute__((const, overloadable)) tan(float v);
FN_FUNC_FN(tan)
/**
* Return the hyperbolic tangent of a value.
*
* Supports 1,2,3,4 components
* @param v The incoming value in radians
*/
extern float __attribute__((const, overloadable)) tanh(float);
FN_FUNC_FN(tanh)
/**
* Return tan(v * PI)
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) tanpi(float v);
FN_FUNC_FN(tanpi)
/**
* Compute the gamma function of a value.
*
* Supports 1,2,3,4 components
*/
extern float __attribute__((const, overloadable)) tgamma(float);
FN_FUNC_FN(tgamma)
/**
* Round to integral using truncation.
*
* Supports 1,2,3,4 components
*/
extern float __attribute__((const, overloadable)) trunc(float);
FN_FUNC_FN(trunc)
#ifdef DOXYGEN
#define XN_FUNC_YN(typeout, fnc, typein) \
extern typeout __attribute__((overloadable)) fnc(typein v);
#define XN_FUNC_XN_XN_BODY(type, fnc, body) \
_RS_RUNTIME type __attribute__((overloadable)) \
fnc(type v1, type v2);
#else
#define XN_FUNC_YN(typeout, fnc, typein) \
extern typeout __attribute__((const, overloadable)) fnc(typein v); \
_RS_RUNTIME typeout##2 __attribute__((const, overloadable)) fnc(typein##2 v); \
_RS_RUNTIME typeout##3 __attribute__((const, overloadable)) fnc(typein##3 v); \
_RS_RUNTIME typeout##4 __attribute__((const, overloadable)) fnc(typein##4 v);
#define XN_FUNC_XN_XN_BODY(type, fnc, body) \
_RS_RUNTIME type __attribute__((const, overloadable)) \
fnc(type v1, type v2); \
_RS_RUNTIME type##2 __attribute__((const, overloadable)) \
fnc(type##2 v1, type##2 v2); \
_RS_RUNTIME type##3 __attribute__((const, overloadable)) \
fnc(type##3 v1, type##3 v2); \
_RS_RUNTIME type##4 __attribute__((const, overloadable)) \
fnc(type##4 v1, type##4 v2);
#endif // DOXYGEN
#define UIN_FUNC_IN(fnc) \
XN_FUNC_YN(uchar, fnc, char) \
XN_FUNC_YN(ushort, fnc, short) \
XN_FUNC_YN(uint, fnc, int)
#define IN_FUNC_IN(fnc) \
XN_FUNC_YN(uchar, fnc, uchar) \
XN_FUNC_YN(char, fnc, char) \
XN_FUNC_YN(ushort, fnc, ushort) \
XN_FUNC_YN(short, fnc, short) \
XN_FUNC_YN(uint, fnc, uint) \
XN_FUNC_YN(int, fnc, int)
#define IN_FUNC_IN_IN_BODY(fnc, body) \
XN_FUNC_XN_XN_BODY(uchar, fnc, body) \
XN_FUNC_XN_XN_BODY(char, fnc, body) \
XN_FUNC_XN_XN_BODY(ushort, fnc, body) \
XN_FUNC_XN_XN_BODY(short, fnc, body) \
XN_FUNC_XN_XN_BODY(uint, fnc, body) \
XN_FUNC_XN_XN_BODY(int, fnc, body) \
XN_FUNC_XN_XN_BODY(float, fnc, body)
/**
* \fn uchar abs(char)
* Return the absolute value of a value.
*
* Supports 1,2,3,4 components of char, short, int.
*/
UIN_FUNC_IN(abs)
/**
* Return the number of leading 0-bits in a value.
*
* Supports 1,2,3,4 components of uchar, char, ushort, short, uint, int.
*/
IN_FUNC_IN(clz)
/**
* Return the minimum of two values.
*
* Supports 1,2,3,4 components of uchar, char, ushort, short, uint, int, float.
*/
IN_FUNC_IN_IN_BODY(min, (v1 < v2 ? v1 : v2))
FN_FUNC_FN_F(min)
/**
* Return the maximum of two values.
*
* Supports 1,2,3,4 components of uchar, char, ushort, short, uint, int, float.
*/
IN_FUNC_IN_IN_BODY(max, (v1 > v2 ? v1 : v2))
FN_FUNC_FN_F(max)
/**
* Clamp a value to a specified high and low bound.
*
* @param amount value to be clamped. Supports 1,2,3,4 components
* @param low Lower bound, must be scalar or matching vector.
* @param high High bound, must match type of low
*/
#if !defined(RS_VERSION) || (RS_VERSION < 19)
_RS_RUNTIME float __attribute__((const, overloadable)) clamp(float amount, float low, float high);
FN_FUNC_FN_FN_FN(clamp)
FN_FUNC_FN_F_F(clamp)
#else
#define _CLAMP(T) \
extern T __attribute__((overloadable)) clamp(T amount, T low, T high); \
extern T##2 __attribute__((overloadable)) clamp(T##2 amount, T##2 low, T##2 high); \
extern T##3 __attribute__((overloadable)) clamp(T##3 amount, T##3 low, T##3 high); \
extern T##4 __attribute__((overloadable)) clamp(T##4 amount, T##4 low, T##4 high); \
extern T##2 __attribute__((overloadable)) clamp(T##2 amount, T low, T high); \
extern T##3 __attribute__((overloadable)) clamp(T##3 amount, T low, T high); \
extern T##4 __attribute__((overloadable)) clamp(T##4 amount, T low, T high)
_CLAMP(float);
_CLAMP(double);
_CLAMP(char);
_CLAMP(uchar);
_CLAMP(short);
_CLAMP(ushort);
_CLAMP(int);
_CLAMP(uint);
_CLAMP(long);
_CLAMP(ulong);
#undef _CLAMP
#endif
/**
* Convert from radians to degrees.
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) degrees(float radians);
FN_FUNC_FN(degrees)
/**
* return start + ((stop - start) * amount);
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) mix(float start, float stop, float amount);
FN_FUNC_FN_FN_FN(mix)
FN_FUNC_FN_FN_F(mix)
/**
* Convert from degrees to radians.
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) radians(float degrees);
FN_FUNC_FN(radians)
/**
* if (v < edge)
* return 0.f;
* else
* return 1.f;
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) step(float edge, float v);
FN_FUNC_FN_FN(step)
FN_FUNC_FN_F(step)
// not implemented
extern float __attribute__((const, overloadable)) smoothstep(float, float, float);
extern float2 __attribute__((const, overloadable)) smoothstep(float2, float2, float2);
extern float3 __attribute__((const, overloadable)) smoothstep(float3, float3, float3);
extern float4 __attribute__((const, overloadable)) smoothstep(float4, float4, float4);
extern float2 __attribute__((const, overloadable)) smoothstep(float, float, float2);
extern float3 __attribute__((const, overloadable)) smoothstep(float, float, float3);
extern float4 __attribute__((const, overloadable)) smoothstep(float, float, float4);
/**
* Return the sign of a value.
*
* if (v < 0) return -1.f;
* else if (v > 0) return 1.f;
* else return 0.f;
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) sign(float v);
FN_FUNC_FN(sign)
/**
* Compute the cross product of two vectors.
*
* Supports 3,4 components
*/
_RS_RUNTIME float3 __attribute__((const, overloadable)) cross(float3 lhs, float3 rhs);
_RS_RUNTIME float4 __attribute__((const, overloadable)) cross(float4 lhs, float4 rhs);
/**
* Compute the dot product of two vectors.
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) dot(float lhs, float rhs);
F_FUNC_FN_FN(dot)
/**
* Compute the length of a vector.
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) length(float v);
F_FUNC_FN(length)
/**
* Compute the distance between two points.
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) distance(float lhs, float rhs);
F_FUNC_FN_FN(distance)
/**
* Normalize a vector.
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) normalize(float v);
FN_FUNC_FN(normalize)
// New approx API functions
#if (defined(RS_VERSION) && (RS_VERSION >= 17))
/**
* Return the approximate reciprocal of a value.
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) half_recip(float);
FN_FUNC_FN(half_recip)
/**
* Return the approximate square root of a value.
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) half_sqrt(float);
FN_FUNC_FN(half_sqrt)
/**
* Return the approximate value of (1 / sqrt(value)).
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) half_rsqrt(float v);
FN_FUNC_FN(half_rsqrt)
/**
* Compute the approximate length of a vector.
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) fast_length(float v);
F_FUNC_FN(fast_length)
/**
* Compute the approximate distance between two points.
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) fast_distance(float lhs, float rhs);
F_FUNC_FN_FN(fast_distance)
/**
* Approximately normalize a vector.
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) fast_normalize(float v);
F_FUNC_FN(fast_normalize)
#endif // (defined(RS_VERSION) && (RS_VERSION >= 17))
#if (defined(RS_VERSION) && (RS_VERSION >= 18))
// Fast native math functions.
/**
* Fast approximate exp2
* valid for inputs -125.f to 125.f
* Max 8192 ulps of error
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) native_exp2(float v);
FN_FUNC_FN(native_exp2)
/**
* Fast approximate exp
* valid for inputs -86.f to 86.f
* Max 8192 ulps of error
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) native_exp(float v);
FN_FUNC_FN(native_exp)
/**
* Fast approximate exp10
* valid for inputs -37.f to 37.f
* Max 8192 ulps of error
*
* Supports 1,2,3,4 components
*/
_RS_RUNTIME float __attribute__((const, overloadable)) native_exp10(float v);
FN_FUNC_FN(native_exp10)
_RS_RUNTIME float __attribute__((const, overloadable)) native_log2(float v);
FN_FUNC_FN(native_log2)
_RS_RUNTIME float __attribute__((const, overloadable)) native_log(float v);
FN_FUNC_FN(native_log)
_RS_RUNTIME float __attribute__((const, overloadable)) native_log10(float v);
FN_FUNC_FN(native_log10)
_RS_RUNTIME float __attribute__((const, overloadable)) native_powr(float v, float y);
FN_FUNC_FN_FN(native_powr)
#endif // (defined(RS_VERSION) && (RS_VERSION >= 18))
#undef CVT_FUNC
#undef CVT_FUNC_2
#undef FN_FUNC_FN
#undef F_FUNC_FN
#undef IN_FUNC_FN
#undef FN_FUNC_FN_FN
#undef F_FUNC_FN_FN
#undef FN_FUNC_FN_F
#undef FN_FUNC_FN_IN
#undef FN_FUNC_FN_I
#undef FN_FUNC_FN_PFN
#undef FN_FUNC_FN_PIN
#undef FN_FUNC_FN_FN_FN
#undef FN_FUNC_FN_FN_F
#undef FN_FUNC_FN_F_F
#undef FN_FUNC_FN_FN_PIN
#undef XN_FUNC_YN
#undef UIN_FUNC_IN
#undef IN_FUNC_IN
#undef XN_FUNC_XN_XN_BODY
#undef IN_FUNC_IN_IN_BODY
#endif