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authorDebi King (Dessie) <dessie@lindenlab.com>2011-06-09 14:06:04 -0400
committerDebi King (Dessie) <dessie@lindenlab.com>2011-06-09 14:06:04 -0400
commit3c539c498a328696c9aa3cd8f00519d9ad0a40e8 (patch)
tree49ec2d995791cf43842fbe0764f5e5fe124a95d8 /indra/llmath/llmatrix3a.cpp
parentffe8417a0410a554e22210c83feadeea76d0ab8a (diff)
parentd5041f5fb0850f71474f0b6a37e15ef322c509a7 (diff)
reconciled .hgtags
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+/**
+ * @file llvector4a.cpp
+ * @brief SIMD vector implementation
+ *
+ * $LicenseInfo:firstyear=2010&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
+ * $/LicenseInfo$
+ */
+
+#include "llmath.h"
+
+static LL_ALIGN_16(const F32 M_IDENT_3A[12]) =
+ { 1.f, 0.f, 0.f, 0.f, // Column 1
+ 0.f, 1.f, 0.f, 0.f, // Column 2
+ 0.f, 0.f, 1.f, 0.f }; // Column 3
+
+extern const LLMatrix3a LL_M3A_IDENTITY = *reinterpret_cast<const LLMatrix3a*> (M_IDENT_3A);
+
+void LLMatrix3a::setMul( const LLMatrix3a& lhs, const LLMatrix3a& rhs )
+{
+ const LLVector4a col0 = lhs.getColumn(0);
+ const LLVector4a col1 = lhs.getColumn(1);
+ const LLVector4a col2 = lhs.getColumn(2);
+
+ for ( int i = 0; i < 3; i++ )
+ {
+ LLVector4a xxxx = _mm_load_ss( rhs.mColumns[i].getF32ptr() );
+ xxxx.splat<0>( xxxx );
+ xxxx.mul( col0 );
+
+ {
+ LLVector4a yyyy = _mm_load_ss( rhs.mColumns[i].getF32ptr() + 1 );
+ yyyy.splat<0>( yyyy );
+ yyyy.mul( col1 );
+ xxxx.add( yyyy );
+ }
+
+ {
+ LLVector4a zzzz = _mm_load_ss( rhs.mColumns[i].getF32ptr() + 2 );
+ zzzz.splat<0>( zzzz );
+ zzzz.mul( col2 );
+ xxxx.add( zzzz );
+ }
+
+ xxxx.store4a( mColumns[i].getF32ptr() );
+ }
+
+}
+
+/*static */void LLMatrix3a::batchTransform( const LLMatrix3a& xform, const LLVector4a* src, int numVectors, LLVector4a* dst )
+{
+ const LLVector4a col0 = xform.getColumn(0);
+ const LLVector4a col1 = xform.getColumn(1);
+ const LLVector4a col2 = xform.getColumn(2);
+ const LLVector4a* maxAddr = src + numVectors;
+
+ if ( numVectors & 0x1 )
+ {
+ LLVector4a xxxx = _mm_load_ss( (const F32*)src );
+ LLVector4a yyyy = _mm_load_ss( (const F32*)src + 1 );
+ LLVector4a zzzz = _mm_load_ss( (const F32*)src + 2 );
+ xxxx.splat<0>( xxxx );
+ yyyy.splat<0>( yyyy );
+ zzzz.splat<0>( zzzz );
+ xxxx.mul( col0 );
+ yyyy.mul( col1 );
+ zzzz.mul( col2 );
+ xxxx.add( yyyy );
+ xxxx.add( zzzz );
+ xxxx.store4a( (F32*)dst );
+ src++;
+ dst++;
+ }
+
+
+ numVectors >>= 1;
+ while ( src < maxAddr )
+ {
+ _mm_prefetch( (const char*)(src + 32 ), _MM_HINT_NTA );
+ _mm_prefetch( (const char*)(dst + 32), _MM_HINT_NTA );
+ LLVector4a xxxx = _mm_load_ss( (const F32*)src );
+ LLVector4a xxxx1= _mm_load_ss( (const F32*)(src + 1) );
+
+ xxxx.splat<0>( xxxx );
+ xxxx1.splat<0>( xxxx1 );
+ xxxx.mul( col0 );
+ xxxx1.mul( col0 );
+
+ {
+ LLVector4a yyyy = _mm_load_ss( (const F32*)src + 1 );
+ LLVector4a yyyy1 = _mm_load_ss( (const F32*)(src + 1) + 1);
+ yyyy.splat<0>( yyyy );
+ yyyy1.splat<0>( yyyy1 );
+ yyyy.mul( col1 );
+ yyyy1.mul( col1 );
+ xxxx.add( yyyy );
+ xxxx1.add( yyyy1 );
+ }
+
+ {
+ LLVector4a zzzz = _mm_load_ss( (const F32*)(src) + 2 );
+ LLVector4a zzzz1 = _mm_load_ss( (const F32*)(++src) + 2 );
+ zzzz.splat<0>( zzzz );
+ zzzz1.splat<0>( zzzz1 );
+ zzzz.mul( col2 );
+ zzzz1.mul( col2 );
+ xxxx.add( zzzz );
+ xxxx1.add( zzzz1 );
+ }
+
+ xxxx.store4a(dst->getF32ptr());
+ src++;
+ dst++;
+
+ xxxx1.store4a((F32*)dst++);
+ }
+}