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/**
* @file llmatrix4a.h
* @brief LLMatrix4a class header file - memory aligned and vectorized 4x4 matrix
*
* $LicenseInfo:firstyear=2007&license=viewergpl$
*
* 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_LLMATRIX4A_H
#define LL_LLMATRIX4A_H
#include "llvector4a.h"
#include "m4math.h"
#include "m3math.h"
class LLMatrix4a
{
public:
LLVector4a mMatrix[4];
inline void clear()
{
mMatrix[0].clear();
mMatrix[1].clear();
mMatrix[2].clear();
mMatrix[3].clear();
}
inline void loadu(const LLMatrix4& src)
{
mMatrix[0] = _mm_loadu_ps(src.mMatrix[0]);
mMatrix[1] = _mm_loadu_ps(src.mMatrix[1]);
mMatrix[2] = _mm_loadu_ps(src.mMatrix[2]);
mMatrix[3] = _mm_loadu_ps(src.mMatrix[3]);
}
inline void loadu(const LLMatrix3& src)
{
mMatrix[0].load3(src.mMatrix[0]);
mMatrix[1].load3(src.mMatrix[1]);
mMatrix[2].load3(src.mMatrix[2]);
mMatrix[3].set(0,0,0,1.f);
}
inline void add(const LLMatrix4a& rhs)
{
mMatrix[0].add(rhs.mMatrix[0]);
mMatrix[1].add(rhs.mMatrix[1]);
mMatrix[2].add(rhs.mMatrix[2]);
mMatrix[3].add(rhs.mMatrix[3]);
}
inline void setRows(const LLVector4a& r0, const LLVector4a& r1, const LLVector4a& r2)
{
mMatrix[0] = r0;
mMatrix[1] = r1;
mMatrix[2] = r2;
}
inline void setMul(const LLMatrix4a& m, const F32 s)
{
mMatrix[0].setMul(m.mMatrix[0], s);
mMatrix[1].setMul(m.mMatrix[1], s);
mMatrix[2].setMul(m.mMatrix[2], s);
mMatrix[3].setMul(m.mMatrix[3], s);
}
inline void setLerp(const LLMatrix4a& a, const LLMatrix4a& b, F32 w)
{
LLVector4a d0,d1,d2,d3;
d0.setSub(b.mMatrix[0], a.mMatrix[0]);
d1.setSub(b.mMatrix[1], a.mMatrix[1]);
d2.setSub(b.mMatrix[2], a.mMatrix[2]);
d3.setSub(b.mMatrix[3], a.mMatrix[3]);
// this = a + d*w
d0.mul(w);
d1.mul(w);
d2.mul(w);
d3.mul(w);
mMatrix[0].setAdd(a.mMatrix[0],d0);
mMatrix[1].setAdd(a.mMatrix[1],d1);
mMatrix[2].setAdd(a.mMatrix[2],d2);
mMatrix[3].setAdd(a.mMatrix[3],d3);
}
inline void rotate(const LLVector4a& v, LLVector4a& res)
{
res = _mm_shuffle_ps(v, v, _MM_SHUFFLE(0, 0, 0, 0));
res.mul(mMatrix[0]);
LLVector4a y;
y = _mm_shuffle_ps(v, v, _MM_SHUFFLE(1, 1, 1, 1));
y.mul(mMatrix[1]);
LLVector4a z;
z = _mm_shuffle_ps(v, v, _MM_SHUFFLE(2, 2, 2, 2));
z.mul(mMatrix[2]);
res.add(y);
res.add(z);
}
inline void affineTransform(const LLVector4a& v, LLVector4a& res)
{
LLVector4a x,y,z;
x = _mm_shuffle_ps(v, v, _MM_SHUFFLE(0, 0, 0, 0));
y = _mm_shuffle_ps(v, v, _MM_SHUFFLE(1, 1, 1, 1));
z = _mm_shuffle_ps(v, v, _MM_SHUFFLE(2, 2, 2, 2));
x.mul(mMatrix[0]);
y.mul(mMatrix[1]);
z.mul(mMatrix[2]);
x.add(y);
z.add(mMatrix[3]);
res.setAdd(x,z);
}
};
#endif
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