SSE2: Add a few useful functions

--HG--
branch : sse2

code/nel/include/nel/misc/matrix.h

@@ -334,12 +334,11 @@ public:
 	CVector		mulVector(const CVector &v) const;
 	/// Multiply a point. ie v.w=1 so the Translation component do affect result. Projection doesn't affect result.
 	CVector		mulPoint(const CVector &v) const;
+	CVector3F	mulPoint(const CVector3F &v) const;
 	/** Multiply a point. \sa mulPoint
 	  */
-	CVector		operator*(const CVector &v) const
-	{
-		return mulPoint(v);
-	}
+	NL_FORCE_INLINE CVector operator*(const CVector &v) const { return mulPoint(v); }
+	NL_FORCE_INLINE CVector3F operator*(const CVector3F &v) const { return mulPoint(v); }
 
 	/// Multiply with an homogeneous vector
 	CVectorH	operator*(const CVectorH& v) const;
@@ -363,11 +362,11 @@ public:
 	friend CPlane		operator*(const CPlane &p, const CMatrix &m);
 
 #ifdef NL_HAS_SSE2
-	inline CMatrix44F &getMatrix() { testExpandRot(); testExpandProj(); return MF; }
-	inline const CMatrix44F &getMatrix() const  { testExpandRot(); testExpandProj(); return MF; }
+	inline CMatrix44F &getMatrix44F() { testExpandRot(); testExpandProj(); return MF; }
+	inline const CMatrix44F &getMatrix44F() const  { testExpandRot(); testExpandProj(); return MF; }
 #else
-	inline CMatrix44F &getMatrix() { return reinterpret_cast<CMatrix44F &>(*this); }
-	inline const CMatrix44F &getMatrix() const  { return reinterpret_cast<const CMatrix44F &>(*this); }
+	inline CMatrix44F &getMatrix44F() { return reinterpret_cast<CMatrix44F &>(*this); }
+	inline const CMatrix44F &getMatrix44F() const  { return reinterpret_cast<const CMatrix44F &>(*this); }
 #endif
 
 private:

code/nel/include/nel/misc/vectorf_math.h

@@ -687,6 +687,7 @@ NL_FORCE_INLINE CVector4F accumulateSplat(const CVector4F &v)
 }
 */
 
+NL_ASSIMILATE_BI_FUNCTION(CVector3F, add, const CVector3F &)
 
 NL_ASSIMILATE_BI_FUNCTION(CVector2F, minF, const CVector2F &)
 NL_ASSIMILATE_BI_FUNCTION(CVector2F, maxF, const CVector2F &)

code/nel/src/misc/matrix.cpp

@@ -1325,6 +1325,34 @@ CVector		CMatrix::mulPoint(const CVector &v) const
 	return ret;
 }
 
+// ======================================================================================================
+CVector3F	CMatrix::mulPoint(const CVector3F &v) const
+{
+#ifdef NL_HAS_SSE2
+	CVector3F ret;
+	if (hasRot())
+	{
+		ret = add(
+			mul(xyz(MF.a), xxx(v)),
+			mul(xyz(MF.b), yyy(v)),
+			mul(xyz(MF.c), zzz(v)));
+	}
+	else
+	{
+		ret = v;
+	}
+	if (hasTrans())
+	{
+		ret = add(
+			ret,
+			xyz(MF.d));
+	}
+	return ret;
+#else
+	return set3F(mulPoint(toVector(v)));
+#endif
+}
+
 
 /*
  * Multiply