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-rw-r--r--indra/llmath/llvector4a.cpp260
1 files changed, 130 insertions, 130 deletions
diff --git a/indra/llmath/llvector4a.cpp b/indra/llmath/llvector4a.cpp
index 570fa41a43..0ac91366b6 100644
--- a/indra/llmath/llvector4a.cpp
+++ b/indra/llmath/llvector4a.cpp
@@ -1,25 +1,25 @@
-/**
+/**
* @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
* $/LicenseInfo$
*/
@@ -28,12 +28,12 @@
#include "llmath.h"
#include "llquantize.h"
-extern const LLQuad F_ZERO_4A = { 0, 0, 0, 0 };
-extern const LLQuad F_APPROXIMATELY_ZERO_4A = {
- F_APPROXIMATELY_ZERO,
- F_APPROXIMATELY_ZERO,
- F_APPROXIMATELY_ZERO,
- F_APPROXIMATELY_ZERO
+extern const LLQuad F_ZERO_4A = { 0, 0, 0, 0 };
+extern const LLQuad F_APPROXIMATELY_ZERO_4A = {
+ F_APPROXIMATELY_ZERO,
+ F_APPROXIMATELY_ZERO,
+ F_APPROXIMATELY_ZERO,
+ F_APPROXIMATELY_ZERO
};
extern const LLVector4a LL_V4A_ZERO = reinterpret_cast<const LLVector4a&> ( F_ZERO_4A );
@@ -46,135 +46,135 @@ extern const LLVector4a LL_V4A_EPSILON = reinterpret_cast<const LLVector4a&> ( F
void LLVector4a::setRotated( const LLRotation& rot, const LLVector4a& vec )
{
- const LLVector4a col0 = rot.getColumn(0);
- const LLVector4a col1 = rot.getColumn(1);
- const LLVector4a col2 = rot.getColumn(2);
-
- LLVector4a result = _mm_load_ss( vec.getF32ptr() );
- result.splat<0>( result );
- result.mul( col0 );
-
- {
- LLVector4a yyyy = _mm_load_ss( vec.getF32ptr() + 1 );
- yyyy.splat<0>( yyyy );
- yyyy.mul( col1 );
- result.add( yyyy );
- }
-
- {
- LLVector4a zzzz = _mm_load_ss( vec.getF32ptr() + 2 );
- zzzz.splat<0>( zzzz );
- zzzz.mul( col2 );
- result.add( zzzz );
- }
-
- *this = result;
+ const LLVector4a col0 = rot.getColumn(0);
+ const LLVector4a col1 = rot.getColumn(1);
+ const LLVector4a col2 = rot.getColumn(2);
+
+ LLVector4a result = _mm_load_ss( vec.getF32ptr() );
+ result.splat<0>( result );
+ result.mul( col0 );
+
+ {
+ LLVector4a yyyy = _mm_load_ss( vec.getF32ptr() + 1 );
+ yyyy.splat<0>( yyyy );
+ yyyy.mul( col1 );
+ result.add( yyyy );
+ }
+
+ {
+ LLVector4a zzzz = _mm_load_ss( vec.getF32ptr() + 2 );
+ zzzz.splat<0>( zzzz );
+ zzzz.mul( col2 );
+ result.add( zzzz );
+ }
+
+ *this = result;
}
void LLVector4a::setRotated( const LLQuaternion2& quat, const LLVector4a& vec )
{
- const LLVector4a& quatVec = quat.getVector4a();
- LLVector4a temp; temp.setCross3(quatVec, vec);
- temp.add( temp );
-
- const LLVector4a realPart( quatVec.getScalarAt<3>() );
- LLVector4a tempTimesReal; tempTimesReal.setMul( temp, realPart );
-
- mQ = vec;
- add( tempTimesReal );
-
- LLVector4a imagCrossTemp; imagCrossTemp.setCross3( quatVec, temp );
- add(imagCrossTemp);
+ const LLVector4a& quatVec = quat.getVector4a();
+ LLVector4a temp; temp.setCross3(quatVec, vec);
+ temp.add( temp );
+
+ const LLVector4a realPart( quatVec.getScalarAt<3>() );
+ LLVector4a tempTimesReal; tempTimesReal.setMul( temp, realPart );
+
+ mQ = vec;
+ add( tempTimesReal );
+
+ LLVector4a imagCrossTemp; imagCrossTemp.setCross3( quatVec, temp );
+ add(imagCrossTemp);
}
void LLVector4a::quantize8( const LLVector4a& low, const LLVector4a& high )
{
- LLVector4a val(mQ);
- LLVector4a delta; delta.setSub( high, low );
-
- {
- val.clamp(low, high);
- val.sub(low);
-
- // 8-bit quantization means we can do with just 12 bits of reciprocal accuracy
- const LLVector4a oneOverDelta = _mm_rcp_ps(delta.mQ);
-// {
-// static LL_ALIGN_16( const F32 F_TWO_4A[4] ) = { 2.f, 2.f, 2.f, 2.f };
-// LLVector4a two; two.load4a( F_TWO_4A );
-//
-// // Here we use _mm_rcp_ps plus one round of newton-raphson
-// // We wish to find 'x' such that x = 1/delta
-// // As a first approximation, we take x0 = _mm_rcp_ps(delta)
-// // Then x1 = 2 * x0 - a * x0^2 or x1 = x0 * ( 2 - a * x0 )
-// // See Intel AP-803 http://ompf.org/!/Intel_application_note_AP-803.pdf
-// const LLVector4a recipApprox = _mm_rcp_ps(delta.mQ);
-// oneOverDelta.setMul( delta, recipApprox );
-// oneOverDelta.setSub( two, oneOverDelta );
-// oneOverDelta.mul( recipApprox );
-// }
-
- val.mul(oneOverDelta);
- val.mul(*reinterpret_cast<const LLVector4a*>(F_U8MAX_4A));
- }
-
- val = _mm_cvtepi32_ps(_mm_cvtps_epi32( val.mQ ));
-
- {
- val.mul(*reinterpret_cast<const LLVector4a*>(F_OOU8MAX_4A));
- val.mul(delta);
- val.add(low);
- }
-
- {
- LLVector4a maxError; maxError.setMul(delta, *reinterpret_cast<const LLVector4a*>(F_OOU8MAX_4A));
- LLVector4a absVal; absVal.setAbs( val );
- setSelectWithMask( absVal.lessThan( maxError ), F_ZERO_4A, val );
- }
+ LLVector4a val(mQ);
+ LLVector4a delta; delta.setSub( high, low );
+
+ {
+ val.clamp(low, high);
+ val.sub(low);
+
+ // 8-bit quantization means we can do with just 12 bits of reciprocal accuracy
+ const LLVector4a oneOverDelta = _mm_rcp_ps(delta.mQ);
+// {
+// static LL_ALIGN_16( const F32 F_TWO_4A[4] ) = { 2.f, 2.f, 2.f, 2.f };
+// LLVector4a two; two.load4a( F_TWO_4A );
+//
+// // Here we use _mm_rcp_ps plus one round of newton-raphson
+// // We wish to find 'x' such that x = 1/delta
+// // As a first approximation, we take x0 = _mm_rcp_ps(delta)
+// // Then x1 = 2 * x0 - a * x0^2 or x1 = x0 * ( 2 - a * x0 )
+// // See Intel AP-803 http://ompf.org/!/Intel_application_note_AP-803.pdf
+// const LLVector4a recipApprox = _mm_rcp_ps(delta.mQ);
+// oneOverDelta.setMul( delta, recipApprox );
+// oneOverDelta.setSub( two, oneOverDelta );
+// oneOverDelta.mul( recipApprox );
+// }
+
+ val.mul(oneOverDelta);
+ val.mul(*reinterpret_cast<const LLVector4a*>(F_U8MAX_4A));
+ }
+
+ val = _mm_cvtepi32_ps(_mm_cvtps_epi32( val.mQ ));
+
+ {
+ val.mul(*reinterpret_cast<const LLVector4a*>(F_OOU8MAX_4A));
+ val.mul(delta);
+ val.add(low);
+ }
+
+ {
+ LLVector4a maxError; maxError.setMul(delta, *reinterpret_cast<const LLVector4a*>(F_OOU8MAX_4A));
+ LLVector4a absVal; absVal.setAbs( val );
+ setSelectWithMask( absVal.lessThan( maxError ), F_ZERO_4A, val );
+ }
}
void LLVector4a::quantize16( const LLVector4a& low, const LLVector4a& high )
{
- LLVector4a val(mQ);
- LLVector4a delta; delta.setSub( high, low );
-
- {
- val.clamp(low, high);
- val.sub(low);
-
- // 16-bit quantization means we need a round of Newton-Raphson
- LLVector4a oneOverDelta;
- {
- static LL_ALIGN_16( const F32 F_TWO_4A[4] ) = { 2.f, 2.f, 2.f, 2.f };
- ll_assert_aligned(F_TWO_4A,16);
-
- LLVector4a two; two.load4a( F_TWO_4A );
-
- // Here we use _mm_rcp_ps plus one round of newton-raphson
- // We wish to find 'x' such that x = 1/delta
- // As a first approximation, we take x0 = _mm_rcp_ps(delta)
- // Then x1 = 2 * x0 - a * x0^2 or x1 = x0 * ( 2 - a * x0 )
- // See Intel AP-803 http://ompf.org/!/Intel_application_note_AP-803.pdf
- const LLVector4a recipApprox = _mm_rcp_ps(delta.mQ);
- oneOverDelta.setMul( delta, recipApprox );
- oneOverDelta.setSub( two, oneOverDelta );
- oneOverDelta.mul( recipApprox );
- }
-
- val.mul(oneOverDelta);
- val.mul(*reinterpret_cast<const LLVector4a*>(F_U16MAX_4A));
- }
-
- val = _mm_cvtepi32_ps(_mm_cvtps_epi32( val.mQ ));
-
- {
- val.mul(*reinterpret_cast<const LLVector4a*>(F_OOU16MAX_4A));
- val.mul(delta);
- val.add(low);
- }
-
- {
- LLVector4a maxError; maxError.setMul(delta, *reinterpret_cast<const LLVector4a*>(F_OOU16MAX_4A));
- LLVector4a absVal; absVal.setAbs( val );
- setSelectWithMask( absVal.lessThan( maxError ), F_ZERO_4A, val );
- }
+ LLVector4a val(mQ);
+ LLVector4a delta; delta.setSub( high, low );
+
+ {
+ val.clamp(low, high);
+ val.sub(low);
+
+ // 16-bit quantization means we need a round of Newton-Raphson
+ LLVector4a oneOverDelta;
+ {
+ static LL_ALIGN_16( const F32 F_TWO_4A[4] ) = { 2.f, 2.f, 2.f, 2.f };
+ ll_assert_aligned(F_TWO_4A,16);
+
+ LLVector4a two; two.load4a( F_TWO_4A );
+
+ // Here we use _mm_rcp_ps plus one round of newton-raphson
+ // We wish to find 'x' such that x = 1/delta
+ // As a first approximation, we take x0 = _mm_rcp_ps(delta)
+ // Then x1 = 2 * x0 - a * x0^2 or x1 = x0 * ( 2 - a * x0 )
+ // See Intel AP-803 http://ompf.org/!/Intel_application_note_AP-803.pdf
+ const LLVector4a recipApprox = _mm_rcp_ps(delta.mQ);
+ oneOverDelta.setMul( delta, recipApprox );
+ oneOverDelta.setSub( two, oneOverDelta );
+ oneOverDelta.mul( recipApprox );
+ }
+
+ val.mul(oneOverDelta);
+ val.mul(*reinterpret_cast<const LLVector4a*>(F_U16MAX_4A));
+ }
+
+ val = _mm_cvtepi32_ps(_mm_cvtps_epi32( val.mQ ));
+
+ {
+ val.mul(*reinterpret_cast<const LLVector4a*>(F_OOU16MAX_4A));
+ val.mul(delta);
+ val.add(low);
+ }
+
+ {
+ LLVector4a maxError; maxError.setMul(delta, *reinterpret_cast<const LLVector4a*>(F_OOU16MAX_4A));
+ LLVector4a absVal; absVal.setAbs( val );
+ setSelectWithMask( absVal.lessThan( maxError ), F_ZERO_4A, val );
+ }
}
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