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/**
* @file llsimdtypes.h
* @brief Declaration of basic SIMD math related types
*
* $LicenseInfo:firstyear=2010&license=viewergpl$
*
* Copyright (c) 2007-2010, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#ifndef LL_SIMD_TYPES_H
#define LL_SIMD_TYPES_H
#ifndef LL_SIMD_MATH_H
#error "Please include llmath.h before this file."
#endif
typedef __m128 LLQuad;
#if LL_WINDOWS
#pragma warning(push)
#pragma warning( disable : 4800 3 ) // Disable warning about casting int to bool for this class.
#if defined(_MSC_VER) && (_MSC_VER < 1500)
// VC++ 2005 is missing these intrinsics
// __forceinline is MSVC specific and attempts to override compiler inlining judgment. This is so
// even in debug builds this call is a NOP.
__forceinline const __m128 _mm_castsi128_ps( const __m128i a ) { return reinterpret_cast<const __m128&>(a); }
__forceinline const __m128i _mm_castps_si128( const __m128 a ) { return reinterpret_cast<const __m128i&>(a); }
#endif // _MSC_VER
#endif // LL_WINDOWS
class LLBool32
{
public:
inline LLBool32() {}
inline LLBool32(int rhs) : m_bool(rhs) {}
inline LLBool32(unsigned int rhs) : m_bool(rhs) {}
inline LLBool32(bool rhs) { m_bool = static_cast<const int>(rhs); }
inline LLBool32& operator= (bool rhs) { m_bool = (int)rhs; return *this; }
inline bool operator== (bool rhs) const { return static_cast<const bool&>(m_bool) == rhs; }
inline bool operator!= (bool rhs) const { return !operator==(rhs); }
inline operator bool() const { return static_cast<const bool&>(m_bool); }
private:
int m_bool;
};
#if LL_WINDOWS
#pragma warning(pop)
#endif
class LLSimdScalar
{
public:
inline LLSimdScalar() {}
inline LLSimdScalar(LLQuad q)
{
mQ = q;
}
inline LLSimdScalar(F32 f)
{
mQ = _mm_set_ss(f);
}
static inline const LLSimdScalar& getZero()
{
extern const LLQuad F_ZERO_4A;
return reinterpret_cast<const LLSimdScalar&>(F_ZERO_4A);
}
inline F32 getF32() const;
inline LLBool32 isApproximatelyEqual(const LLSimdScalar& rhs, F32 tolerance = F_APPROXIMATELY_ZERO) const;
inline LLSimdScalar getAbs() const;
inline void setMax( const LLSimdScalar& a, const LLSimdScalar& b );
inline void setMin( const LLSimdScalar& a, const LLSimdScalar& b );
inline LLSimdScalar& operator=(F32 rhs);
inline LLSimdScalar& operator+=(const LLSimdScalar& rhs);
inline LLSimdScalar& operator-=(const LLSimdScalar& rhs);
inline LLSimdScalar& operator*=(const LLSimdScalar& rhs);
inline LLSimdScalar& operator/=(const LLSimdScalar& rhs);
inline operator LLQuad() const
{
return mQ;
}
inline const LLQuad& getQuad() const
{
return mQ;
}
private:
LLQuad mQ;
};
#endif //LL_SIMD_TYPES_H
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