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// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include "../sys/platform.h"
#include <limits>
#define _USE_MATH_DEFINES
#include <math.h> // using cmath causes issues under Windows
#include <cfloat>
#include <climits>
namespace embree
{
static MAYBE_UNUSED const float one_over_255 = 1.0f/255.0f;
static MAYBE_UNUSED const float min_rcp_input = 1E-18f; // for abs(x) >= min_rcp_input the newton raphson rcp calculation does not fail
/* we consider floating point numbers in that range as valid input numbers */
static MAYBE_UNUSED float FLT_LARGE = 1.844E18f;
struct TrueTy {
__forceinline operator bool( ) const { return true; }
};
const constexpr TrueTy True = TrueTy();
struct FalseTy {
__forceinline operator bool( ) const { return false; }
};
const constexpr FalseTy False = FalseTy();
struct ZeroTy
{
__forceinline operator double ( ) const { return 0; }
__forceinline operator float ( ) const { return 0; }
__forceinline operator long long( ) const { return 0; }
__forceinline operator unsigned long long( ) const { return 0; }
__forceinline operator long ( ) const { return 0; }
__forceinline operator unsigned long ( ) const { return 0; }
__forceinline operator int ( ) const { return 0; }
__forceinline operator unsigned int ( ) const { return 0; }
__forceinline operator short ( ) const { return 0; }
__forceinline operator unsigned short ( ) const { return 0; }
__forceinline operator char ( ) const { return 0; }
__forceinline operator unsigned char ( ) const { return 0; }
};
const constexpr ZeroTy zero = ZeroTy();
struct OneTy
{
__forceinline operator double ( ) const { return 1; }
__forceinline operator float ( ) const { return 1; }
__forceinline operator long long( ) const { return 1; }
__forceinline operator unsigned long long( ) const { return 1; }
__forceinline operator long ( ) const { return 1; }
__forceinline operator unsigned long ( ) const { return 1; }
__forceinline operator int ( ) const { return 1; }
__forceinline operator unsigned int ( ) const { return 1; }
__forceinline operator short ( ) const { return 1; }
__forceinline operator unsigned short ( ) const { return 1; }
__forceinline operator char ( ) const { return 1; }
__forceinline operator unsigned char ( ) const { return 1; }
};
const constexpr OneTy one = OneTy();
struct NegInfTy
{
__forceinline operator double ( ) const { return -std::numeric_limits<double>::infinity(); }
__forceinline operator float ( ) const { return -std::numeric_limits<float>::infinity(); }
__forceinline operator long long( ) const { return std::numeric_limits<long long>::min(); }
__forceinline operator unsigned long long( ) const { return std::numeric_limits<unsigned long long>::min(); }
__forceinline operator long ( ) const { return std::numeric_limits<long>::min(); }
__forceinline operator unsigned long ( ) const { return std::numeric_limits<unsigned long>::min(); }
__forceinline operator int ( ) const { return std::numeric_limits<int>::min(); }
__forceinline operator unsigned int ( ) const { return std::numeric_limits<unsigned int>::min(); }
__forceinline operator short ( ) const { return std::numeric_limits<short>::min(); }
__forceinline operator unsigned short ( ) const { return std::numeric_limits<unsigned short>::min(); }
__forceinline operator char ( ) const { return std::numeric_limits<char>::min(); }
__forceinline operator unsigned char ( ) const { return std::numeric_limits<unsigned char>::min(); }
};
const constexpr NegInfTy neg_inf = NegInfTy();
struct PosInfTy
{
__forceinline operator double ( ) const { return std::numeric_limits<double>::infinity(); }
__forceinline operator float ( ) const { return std::numeric_limits<float>::infinity(); }
__forceinline operator long long( ) const { return std::numeric_limits<long long>::max(); }
__forceinline operator unsigned long long( ) const { return std::numeric_limits<unsigned long long>::max(); }
__forceinline operator long ( ) const { return std::numeric_limits<long>::max(); }
__forceinline operator unsigned long ( ) const { return std::numeric_limits<unsigned long>::max(); }
__forceinline operator int ( ) const { return std::numeric_limits<int>::max(); }
__forceinline operator unsigned int ( ) const { return std::numeric_limits<unsigned int>::max(); }
__forceinline operator short ( ) const { return std::numeric_limits<short>::max(); }
__forceinline operator unsigned short ( ) const { return std::numeric_limits<unsigned short>::max(); }
__forceinline operator char ( ) const { return std::numeric_limits<char>::max(); }
__forceinline operator unsigned char ( ) const { return std::numeric_limits<unsigned char>::max(); }
};
const constexpr PosInfTy inf = PosInfTy();
const constexpr PosInfTy pos_inf = PosInfTy();
struct NaNTy
{
__forceinline operator double( ) const { return std::numeric_limits<double>::quiet_NaN(); }
__forceinline operator float ( ) const { return std::numeric_limits<float>::quiet_NaN(); }
};
const constexpr NaNTy nan = NaNTy();
struct UlpTy
{
__forceinline operator double( ) const { return std::numeric_limits<double>::epsilon(); }
__forceinline operator float ( ) const { return std::numeric_limits<float>::epsilon(); }
};
const constexpr UlpTy ulp = UlpTy();
struct PiTy
{
__forceinline operator double( ) const { return double(M_PI); }
__forceinline operator float ( ) const { return float(M_PI); }
};
const constexpr PiTy pi = PiTy();
struct OneOverPiTy
{
__forceinline operator double( ) const { return double(M_1_PI); }
__forceinline operator float ( ) const { return float(M_1_PI); }
};
const constexpr OneOverPiTy one_over_pi = OneOverPiTy();
struct TwoPiTy
{
__forceinline operator double( ) const { return double(2.0*M_PI); }
__forceinline operator float ( ) const { return float(2.0*M_PI); }
};
const constexpr TwoPiTy two_pi = TwoPiTy();
struct OneOverTwoPiTy
{
__forceinline operator double( ) const { return double(0.5*M_1_PI); }
__forceinline operator float ( ) const { return float(0.5*M_1_PI); }
};
const constexpr OneOverTwoPiTy one_over_two_pi = OneOverTwoPiTy();
struct FourPiTy
{
__forceinline operator double( ) const { return double(4.0*M_PI); }
__forceinline operator float ( ) const { return float(4.0*M_PI); }
};
const constexpr FourPiTy four_pi = FourPiTy();
struct OneOverFourPiTy
{
__forceinline operator double( ) const { return double(0.25*M_1_PI); }
__forceinline operator float ( ) const { return float(0.25*M_1_PI); }
};
const constexpr OneOverFourPiTy one_over_four_pi = OneOverFourPiTy();
struct StepTy {
__forceinline operator double ( ) const { return 0; }
__forceinline operator float ( ) const { return 0; }
__forceinline operator long long( ) const { return 0; }
__forceinline operator unsigned long long( ) const { return 0; }
__forceinline operator long ( ) const { return 0; }
__forceinline operator unsigned long ( ) const { return 0; }
__forceinline operator int ( ) const { return 0; }
__forceinline operator unsigned int ( ) const { return 0; }
__forceinline operator short ( ) const { return 0; }
__forceinline operator unsigned short ( ) const { return 0; }
__forceinline operator char ( ) const { return 0; }
__forceinline operator unsigned char ( ) const { return 0; }
};
const constexpr StepTy step = StepTy();
struct ReverseStepTy {
};
const constexpr ReverseStepTy reverse_step = ReverseStepTy();
struct EmptyTy {
};
const constexpr EmptyTy empty = EmptyTy();
struct FullTy {
};
const constexpr FullTy full = FullTy();
struct UndefinedTy {
};
const constexpr UndefinedTy undefined = UndefinedTy();
}
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