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authorDave Parks <davep@lindenlab.com>2010-08-26 14:23:12 -0500
committerDave Parks <davep@lindenlab.com>2010-08-26 14:23:12 -0500
commit71de5f622a7917f78823a7e7840194e1b0f8f070 (patch)
tree1bfa580e5262ae6a8271ade6aee08f21a019c688 /indra/llmath/llsimdtypes.h
parentfc7a3f6daab94331aab52983caee5c68db8cd772 (diff)
Add missing files from viewer-experimental
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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