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Add some more vectorization.

meow-7.2.2
Nicky 2015-06-19 00:48:25 +02:00
parent a6b0909a4e
commit a49cfaf32c
1 changed files with 35 additions and 13 deletions
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48
indra/newview/lldrawpoolavatar.cpp
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@ -1738,28 +1738,50 @@ void LLDrawPoolAvatar::updateRiggedFaceVertexBuffer(LLVOAvatar* avatar, LLFace*
LLMatrix4a bind_shape_matrix;
bind_shape_matrix.loadu(skin->mBindShapeMatrix);
__m128i _mMaxIdx = _mm_set_epi16( count-1, count-1, count-1, count-1, count-1, count-1, count-1, count-1 );
for (U32 j = 0; j < buffer->getNumVerts(); ++j)
{
LLMatrix4a final_mat;
final_mat.clear();
S32 idx[4];
// <FS:ND> Avoid the 8 floorf by using SSE2.
// S32 idx[4];
//
// LLVector4 wght;
//
// F32 scale = 0.f;
// for (U32 k = 0; k < 4; k++)
// {
// F32 w = weight[j][k];
//
// idx[k] = llclamp((S32) floorf(w), 0, JOINT_COUNT-1);
//
//
// wght[k] = w - floorf(w);
// scale += wght[k];
// }
//
// wght *= 1.f/scale;
LLVector4 wght;
LL_ALIGN_16( S32 idx[4] );
LL_ALIGN_16( F32 wght[4] );
F32 scale = 0.f;
for (U32 k = 0; k < 4; k++)
{
F32 w = weight[j][k];
__m128i _mIdx = _mm_cvttps_epi32( weight[j] );
__m128 _mWeight = _mm_sub_ps( weight[j], _mm_cvtepi32_ps( _mIdx ) );
idx[k] = llclamp((S32) floorf(w), 0, JOINT_COUNT-1);
_mIdx = _mm_min_epi16( _mIdx, _mMaxIdx );
_mm_store_si128( (__m128i*)idx, _mIdx );
__m128 _mScale = _mm_add_ps( _mWeight, _mm_movehl_ps( _mWeight, _mWeight ));
_mScale = _mm_add_ss( _mScale, _mm_shuffle_ps( _mScale, _mScale, 1) );
_mScale = _mm_shuffle_ps( _mScale, _mScale, 0 );
wght[k] = w - floorf(w);
scale += wght[k];
}
wght *= 1.f/scale;
_mWeight = _mm_div_ps( _mWeight, _mScale );
_mm_store_ps( wght, _mWeight );
// </FS:ND>
for (U32 k = 0; k < 4; k++)
{