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Diffstat (limited to 'renderscript/include/rs_cl.rsh')
| -rw-r--r-- | renderscript/include/rs_cl.rsh | 867 |
1 files changed, 867 insertions, 0 deletions
diff --git a/renderscript/include/rs_cl.rsh b/renderscript/include/rs_cl.rsh new file mode 100644 index 0000000..bbc8fc5 --- /dev/null +++ b/renderscript/include/rs_cl.rsh @@ -0,0 +1,867 @@ +/* + * Copyright (C) 2011 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__((overloadable)) \ + convert_##typeout##2(typein##2 v); \ +_RS_RUNTIME typeout##3 __attribute__((overloadable)) \ + convert_##typeout##3(typein##3 v); \ +_RS_RUNTIME typeout##4 __attribute__((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) + +CVT_FUNC(char) +CVT_FUNC(uchar) +CVT_FUNC(short) +CVT_FUNC(ushort) +CVT_FUNC(int) +CVT_FUNC(uint) +CVT_FUNC(float) + +// Float ops, 6.11.2 + +#define FN_FUNC_FN(fnc) \ +_RS_RUNTIME float2 __attribute__((overloadable)) fnc(float2 v); \ +_RS_RUNTIME float3 __attribute__((overloadable)) fnc(float3 v); \ +_RS_RUNTIME float4 __attribute__((overloadable)) fnc(float4 v); + +#define IN_FUNC_FN(fnc) \ +_RS_RUNTIME int2 __attribute__((overloadable)) fnc(float2 v); \ +_RS_RUNTIME int3 __attribute__((overloadable)) fnc(float3 v); \ +_RS_RUNTIME int4 __attribute__((overloadable)) fnc(float4 v); + +#define FN_FUNC_FN_FN(fnc) \ +_RS_RUNTIME float2 __attribute__((overloadable)) fnc(float2 v1, float2 v2); \ +_RS_RUNTIME float3 __attribute__((overloadable)) fnc(float3 v1, float3 v2); \ +_RS_RUNTIME float4 __attribute__((overloadable)) fnc(float4 v1, float4 v2); + +#define FN_FUNC_FN_F(fnc) \ +_RS_RUNTIME float2 __attribute__((overloadable)) fnc(float2 v1, float v2); \ +_RS_RUNTIME float3 __attribute__((overloadable)) fnc(float3 v1, float v2); \ +_RS_RUNTIME float4 __attribute__((overloadable)) fnc(float4 v1, float v2); + +#define FN_FUNC_FN_IN(fnc) \ +_RS_RUNTIME float2 __attribute__((overloadable)) fnc(float2 v1, int2 v2); \ +_RS_RUNTIME float3 __attribute__((overloadable)) fnc(float3 v1, int3 v2); \ +_RS_RUNTIME float4 __attribute__((overloadable)) fnc(float4 v1, int4 v2); \ + +#define FN_FUNC_FN_I(fnc) \ +_RS_RUNTIME float2 __attribute__((overloadable)) fnc(float2 v1, int v2); \ +_RS_RUNTIME float3 __attribute__((overloadable)) fnc(float3 v1, int v2); \ +_RS_RUNTIME float4 __attribute__((overloadable)) fnc(float4 v1, int v2); + +#define FN_FUNC_FN_PFN(fnc) \ +_RS_RUNTIME float2 __attribute__((overloadable)) \ + fnc(float2 v1, float2 *v2); \ +_RS_RUNTIME float3 __attribute__((overloadable)) \ + fnc(float3 v1, float3 *v2); \ +_RS_RUNTIME float4 __attribute__((overloadable)) \ + fnc(float4 v1, float4 *v2); + +#define FN_FUNC_FN_PIN(fnc) \ +_RS_RUNTIME float2 __attribute__((overloadable)) fnc(float2 v1, int2 *v2); \ +_RS_RUNTIME float3 __attribute__((overloadable)) fnc(float3 v1, int3 *v2); \ +_RS_RUNTIME float4 __attribute__((overloadable)) fnc(float4 v1, int4 *v2); + +#define FN_FUNC_FN_FN_FN(fnc) \ +_RS_RUNTIME float2 __attribute__((overloadable)) \ + fnc(float2 v1, float2 v2, float2 v3); \ +_RS_RUNTIME float3 __attribute__((overloadable)) \ + fnc(float3 v1, float3 v2, float3 v3); \ +_RS_RUNTIME float4 __attribute__((overloadable)) \ + fnc(float4 v1, float4 v2, float4 v3); + +#define FN_FUNC_FN_FN_PIN(fnc) \ +_RS_RUNTIME float2 __attribute__((overloadable)) \ + fnc(float2 v1, float2 v2, int2 *v3); \ +_RS_RUNTIME float3 __attribute__((overloadable)) \ + fnc(float3 v1, float3 v2, int3 *v3); \ +_RS_RUNTIME float4 __attribute__((overloadable)) \ + fnc(float4 v1, float4 v2, int4 *v3); + + +/** + * Return the inverse cosine. + * + * Supports float, float2, float3, float4 + */ +extern float __attribute__((overloadable)) acos(float); +FN_FUNC_FN(acos) + +/** + * Return the inverse hyperbolic cosine. + * + * Supports float, float2, float3, float4 + */ +extern float __attribute__((overloadable)) acosh(float); +FN_FUNC_FN(acosh) + +/** + * Return the inverse cosine divided by PI. + * + * Supports float, float2, float3, float4 + */ +_RS_RUNTIME float __attribute__((overloadable)) acospi(float v); +FN_FUNC_FN(acospi) + +/** + * Return the inverse sine. + * + * Supports float, float2, float3, float4 + */ +extern float __attribute__((overloadable)) asin(float); +FN_FUNC_FN(asin) + +/** + * Return the inverse hyperbolic sine. + * + * Supports float, float2, float3, float4 + */ +extern float __attribute__((overloadable)) asinh(float); +FN_FUNC_FN(asinh) + + +/** + * Return the inverse sine divided by PI. + * + * Supports float, float2, float3, float4 + */ +_RS_RUNTIME float __attribute__((overloadable)) asinpi(float v); +FN_FUNC_FN(asinpi) + +/** + * Return the inverse tangent. + * + * Supports float, float2, float3, float4 + */ +extern float __attribute__((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__((overloadable)) atan2(float y, float x); +FN_FUNC_FN_FN(atan2) + +/** + * Return the inverse hyperbolic tangent. + * + * Supports float, float2, float3, float4 + */ +extern float __attribute__((overloadable)) atanh(float); +FN_FUNC_FN(atanh) + +/** + * Return the inverse tangent divided by PI. + * + * Supports float, float2, float3, float4 + */ +_RS_RUNTIME float __attribute__((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__((overloadable)) atan2pi(float y, float x); +FN_FUNC_FN_FN(atan2pi) + + +/** + * Return the cube root. + * + * Supports float, float2, float3, float4. + */ +extern float __attribute__((overloadable)) cbrt(float); +FN_FUNC_FN(cbrt) + +/** + * Return the smallest integer not less than a value. + * + * Supports float, float2, float3, float4. + */ +extern float __attribute__((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__((overloadable)) copysign(float x, float y); +FN_FUNC_FN_FN(copysign) + +/** + * Return the cosine. + * + * Supports float, float2, float3, float4. + */ +extern float __attribute__((overloadable)) cos(float); +FN_FUNC_FN(cos) + +/** + * Return the hypebolic cosine. + * + * Supports float, float2, float3, float4. + */ +extern float __attribute__((overloadable)) cosh(float); +FN_FUNC_FN(cosh) + +/** + * Return the cosine of the value * PI. + * + * Supports float, float2, float3, float4. + */ +_RS_RUNTIME float __attribute__((overloadable)) cospi(float v); +FN_FUNC_FN(cospi) + +/** + * Return the complementary error function. + * + * Supports float, float2, float3, float4. + */ +extern float __attribute__((overloadable)) erfc(float); +FN_FUNC_FN(erfc) + +/** + * Return the error function. + * + * Supports float, float2, float3, float4. + */ +extern float __attribute__((overloadable)) erf(float); +FN_FUNC_FN(erf) + +/** + * Return e ^ value. + * + * Supports float, float2, float3, float4. + */ +extern float __attribute__((overloadable)) exp(float); +FN_FUNC_FN(exp) + +/** + * Return 2 ^ value. + * + * Supports float, float2, float3, float4. + */ +extern float __attribute__((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__((overloadable)) pow(float x, float y); +FN_FUNC_FN_FN(pow) + +/** + * Return 10 ^ value. + * + * Supports float, float2, float3, float4. + */ +_RS_RUNTIME float __attribute__((overloadable)) exp10(float v); +FN_FUNC_FN(exp10) + +/** + * Return (e ^ value) - 1. + * + * Supports float, float2, float3, float4. + */ +extern float __attribute__((overloadable)) expm1(float); +FN_FUNC_FN(expm1) + +/** + * Return the absolute value of a value. + * + * Supports float, float2, float3, float4. + */ +extern float __attribute__((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__((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__((overloadable)) floor(float); +FN_FUNC_FN(floor) + +/** + * Return a*b + c. + * + * Supports float, float2, float3, float4. + */ +extern float __attribute__((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__((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__((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__((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__((overloadable)) fract(float v, float *iptr); +FN_FUNC_FN_PFN(fract) + +/** + * 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__((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__((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__((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__((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__((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__((overloadable)) lgamma(float x, int* y); +FN_FUNC_FN_PIN(lgamma) + +/** + * Return the natural logarithm + * + * Supports 1,2,3,4 components + */ +extern float __attribute__((overloadable)) log(float); +FN_FUNC_FN(log) + +/** + * Return the base 10 logarithm + * + * Supports 1,2,3,4 components + */ +extern float __attribute__((overloadable)) log10(float); +FN_FUNC_FN(log10) + +/** + * Return the base 2 logarithm + * + * Supports 1,2,3,4 components + */ +_RS_RUNTIME float __attribute__((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__((overloadable)) log1p(float v); +FN_FUNC_FN(log1p) + +/** + * Compute the exponent of the value. + * + * Supports 1,2,3,4 components + */ +extern float __attribute__((overloadable)) logb(float); +FN_FUNC_FN(logb) + +/** + * Compute (a * b) + c + * + * Supports 1,2,3,4 components + */ +extern float __attribute__((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__((overloadable)) modf(float x, float *iret); +FN_FUNC_FN_PFN(modf); + +//extern float __attribute__((overloadable)) nan(uint); + +/** + * Return the next floating point number from x towards y. + * + * Supports 1,2,3,4 components + */ +extern float __attribute__((overloadable)) nextafter(float x, float y); +FN_FUNC_FN_FN(nextafter) + +/** + * Return (v ^ p). + * + * Supports 1,2,3,4 components + */ +_RS_RUNTIME float __attribute__((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__((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__((overloadable)) remainder(float x, float y); +FN_FUNC_FN_FN(remainder) + +// document once we know the precision of bionic +extern float __attribute__((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__((overloadable)) rint(float); +FN_FUNC_FN(rint) + +/** + * Compute the Nth root of a value. + * + * Supports 1,2,3,4 components + */ +_RS_RUNTIME float __attribute__((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__((overloadable)) round(float); +FN_FUNC_FN(round) + +/** + * Return the square root of a value. + * + * Supports 1,2,3,4 components + */ +extern float __attribute__((overloadable)) sqrt(float); +FN_FUNC_FN(sqrt) + +/** + * Return (1 / sqrt(value)). + * + * @param v The incoming value in radians + * Supports 1,2,3,4 components + */ +_RS_RUNTIME float __attribute__((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__((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__((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__((overloadable)) sinh(float); +FN_FUNC_FN(sinh) + +/** + * Return the sin(v * PI). + * + * Supports 1,2,3,4 components + */ +_RS_RUNTIME float __attribute__((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__((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__((overloadable)) tanh(float); +FN_FUNC_FN(tanh) + +/** + * Return tan(v * PI) + * + * Supports 1,2,3,4 components + */ +_RS_RUNTIME float __attribute__((overloadable)) tanpi(float v); +FN_FUNC_FN(tanpi) + +/** + * Compute the gamma function of a value. + * + * Supports 1,2,3,4 components + */ +extern float __attribute__((overloadable)) tgamma(float); +FN_FUNC_FN(tgamma) + +/** + * Round to integral using truncation. + * + * Supports 1,2,3,4 components + */ +extern float __attribute__((overloadable)) trunc(float); +FN_FUNC_FN(trunc) + + +#define XN_FUNC_YN(typeout, fnc, typein) \ +extern typeout __attribute__((overloadable)) fnc(typein); \ +_RS_RUNTIME typeout##2 __attribute__((overloadable)) fnc(typein##2 v); \ +_RS_RUNTIME typeout##3 __attribute__((overloadable)) fnc(typein##3 v); \ +_RS_RUNTIME typeout##4 __attribute__((overloadable)) fnc(typein##4 v); + +#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 XN_FUNC_XN_XN_BODY(type, fnc, body) \ +_RS_RUNTIME type __attribute__((overloadable)) \ + fnc(type v1, type v2); \ +_RS_RUNTIME type##2 __attribute__((overloadable)) \ + fnc(type##2 v1, type##2 v2); \ +_RS_RUNTIME type##3 __attribute__((overloadable)) \ + fnc(type##3 v1, type##3 v2); \ +_RS_RUNTIME type##4 __attribute__((overloadable)) \ + fnc(type##4 v1, type##4 v2); + +#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) + +UIN_FUNC_IN(abs) +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 + */ +_RS_RUNTIME float __attribute__((overloadable)) clamp(float amount, float low, float high); +_RS_RUNTIME float2 __attribute__((overloadable)) clamp(float2 amount, float2 low, float2 high); +_RS_RUNTIME float3 __attribute__((overloadable)) clamp(float3 amount, float3 low, float3 high); +_RS_RUNTIME float4 __attribute__((overloadable)) clamp(float4 amount, float4 low, float4 high); +_RS_RUNTIME float2 __attribute__((overloadable)) clamp(float2 amount, float low, float high); +_RS_RUNTIME float3 __attribute__((overloadable)) clamp(float3 amount, float low, float high); +_RS_RUNTIME float4 __attribute__((overloadable)) clamp(float4 amount, float low, float high); + +/** + * Convert from radians to degrees. + * + * Supports 1,2,3,4 components + */ +_RS_RUNTIME float __attribute__((overloadable)) degrees(float radians); +FN_FUNC_FN(degrees) + +/** + * return start + ((stop - start) * amount); + * + * Supports 1,2,3,4 components + */ +_RS_RUNTIME float __attribute__((overloadable)) mix(float start, float stop, float amount); +_RS_RUNTIME float2 __attribute__((overloadable)) mix(float2 start, float2 stop, float2 amount); +_RS_RUNTIME float3 __attribute__((overloadable)) mix(float3 start, float3 stop, float3 amount); +_RS_RUNTIME float4 __attribute__((overloadable)) mix(float4 start, float4 stop, float4 amount); +_RS_RUNTIME float2 __attribute__((overloadable)) mix(float2 start, float2 stop, float amount); +_RS_RUNTIME float3 __attribute__((overloadable)) mix(float3 start, float3 stop, float amount); +_RS_RUNTIME float4 __attribute__((overloadable)) mix(float4 start, float4 stop, float amount); + +/** + * Convert from degrees to radians. + * + * Supports 1,2,3,4 components + */ +_RS_RUNTIME float __attribute__((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__((overloadable)) step(float edge, float v); +_RS_RUNTIME float2 __attribute__((overloadable)) step(float2 edge, float2 v); +_RS_RUNTIME float3 __attribute__((overloadable)) step(float3 edge, float3 v); +_RS_RUNTIME float4 __attribute__((overloadable)) step(float4 edge, float4 v); +_RS_RUNTIME float2 __attribute__((overloadable)) step(float2 edge, float v); +_RS_RUNTIME float3 __attribute__((overloadable)) step(float3 edge, float v); +_RS_RUNTIME float4 __attribute__((overloadable)) step(float4 edge, float v); + +// not implemented +extern float __attribute__((overloadable)) smoothstep(float, float, float); +extern float2 __attribute__((overloadable)) smoothstep(float2, float2, float2); +extern float3 __attribute__((overloadable)) smoothstep(float3, float3, float3); +extern float4 __attribute__((overloadable)) smoothstep(float4, float4, float4); +extern float2 __attribute__((overloadable)) smoothstep(float, float, float2); +extern float3 __attribute__((overloadable)) smoothstep(float, float, float3); +extern float4 __attribute__((overloadable)) smoothstep(float, float, float4); + +/** + * 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__((overloadable)) sign(float v); +FN_FUNC_FN(sign) + +/** + * Compute the cross product of two vectors. + * + * Supports 3,4 components + */ +_RS_RUNTIME float3 __attribute__((overloadable)) cross(float3 lhs, float3 rhs); +_RS_RUNTIME float4 __attribute__((overloadable)) cross(float4 lhs, float4 rhs); + +/** + * Compute the dot product of two vectors. + * + * Supports 1,2,3,4 components + */ +_RS_RUNTIME float __attribute__((overloadable)) dot(float lhs, float rhs); +_RS_RUNTIME float __attribute__((overloadable)) dot(float2 lhs, float2 rhs); +_RS_RUNTIME float __attribute__((overloadable)) dot(float3 lhs, float3 rhs); +_RS_RUNTIME float __attribute__((overloadable)) dot(float4 lhs, float4 rhs); + +/** + * Compute the length of a vector. + * + * Supports 1,2,3,4 components + */ +_RS_RUNTIME float __attribute__((overloadable)) length(float v); +_RS_RUNTIME float __attribute__((overloadable)) length(float2 v); +_RS_RUNTIME float __attribute__((overloadable)) length(float3 v); +_RS_RUNTIME float __attribute__((overloadable)) length(float4 v); + +/** + * Compute the distance between two points. + * + * Supports 1,2,3,4 components + */ +_RS_RUNTIME float __attribute__((overloadable)) distance(float lhs, float rhs); +_RS_RUNTIME float __attribute__((overloadable)) distance(float2 lhs, float2 rhs); +_RS_RUNTIME float __attribute__((overloadable)) distance(float3 lhs, float3 rhs); +_RS_RUNTIME float __attribute__((overloadable)) distance(float4 lhs, float4 rhs); + +/** + * Normalize a vector. + * + * Supports 1,2,3,4 components + */ +_RS_RUNTIME float __attribute__((overloadable)) normalize(float v); +_RS_RUNTIME float2 __attribute__((overloadable)) normalize(float2 v); +_RS_RUNTIME float3 __attribute__((overloadable)) normalize(float3 v); +_RS_RUNTIME float4 __attribute__((overloadable)) normalize(float4 v); + +#undef CVT_FUNC +#undef CVT_FUNC_2 +#undef FN_FUNC_FN +#undef IN_FUNC_FN +#undef FN_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_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 |