mirror of
https://github.com/bulletphysics/bullet3
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107 lines
3.1 KiB
C++
107 lines
3.1 KiB
C++
// Bullet Continuous Collision Detection and Physics Library
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// Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/
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//
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// Scalar.h
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//
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// Copyright (c) 2006 Simon Hobbs
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//
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// This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source distribution.
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#ifndef BULLET_SCALAR_H
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#define BULLET_SCALAR_H
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#include <xmmintrin.h>
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#include "Memory2.h"
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// resolved overload found with Koenig lookup
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#pragma warning (disable : 4675)
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__declspec(align(16)) class Scalar
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{
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public:
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BULLET_ALIGNED_NEW_AND_DELETE
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__m128 base;
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// constants
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struct Consts{
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static const Scalar
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MinusOne,
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Zero,
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Half,
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One,
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Three,
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MinValue,
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MaxValue,
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Epsilon,
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NegInfinity,
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PosInfinity,
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AbsMask;
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};
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// constructors
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Scalar();
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Scalar(float f);
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Scalar(int i, bool forceNoConvert);
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// explicit constructors
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explicit Scalar(__m128 s);
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explicit Scalar(int i);
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// assignment
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const Scalar& operator=(const Scalar& a);
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// conversion
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operator const float() const;
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operator const float();
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// in place operations
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void operator+=(const Scalar& b);
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void operator-=(const Scalar& b);
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void operator*=(const Scalar& b);
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void operator/=(const Scalar& b);
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// operations
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friend const Scalar operator-(const Scalar& a);
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friend const Scalar operator+(const Scalar& a, const Scalar& b);
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friend const Scalar operator-(const Scalar& a, const Scalar& b);
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friend const Scalar operator*(const Scalar& a, const Scalar& b);
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friend const Scalar operator/(const Scalar& a, const Scalar& b);
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friend const Scalar Abs(const Scalar& a);
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friend const Scalar Rcp(const Scalar& a);
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friend const Scalar Rsqrt(const Scalar& a);
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friend const Scalar Sqrt(const Scalar& a);
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friend const Scalar RcpNr(const Scalar& a);
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friend const Scalar RsqrtNr(const Scalar& a);
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friend const Scalar Min(const Scalar& a, const Scalar& b);
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friend const Scalar Max(const Scalar& a, const Scalar& b);
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friend const Scalar Clamp(const Scalar& a, const Scalar& min, const Scalar& max);
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friend const Scalar Lerp(const Scalar& a, const Scalar& b, const Scalar& t);
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// comparison
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friend const int IsNegative(const Scalar& a);
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friend const int IsNan(const Scalar& a);
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friend const int IsInfinity(const Scalar& a);
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friend const int IsPosInfinity(const Scalar& a);
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friend const int IsNegInfinity(const Scalar& a);
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};
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#include "Scalar.inl"
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#endif //BULLET_SCALAR_H
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