/indra/newview/llviewerjointmesh_vec.cpp
C++ | 97 lines | 51 code | 11 blank | 35 comment | 6 complexity | 520cffc2c118aacc4eb21409b795c30f MD5 | raw file
Possible License(s): LGPL-2.1
- /**
- * @file llviewerjointmesh_vec.cpp
- * @brief Compiler-generated vectorized joint skinning code, works well on
- * Altivec processors (PowerPC Mac)
- *
- * *NOTE: See llv4math.h for notes on SSE/Altivec vector code.
- *
- * $LicenseInfo:firstyear=2007&license=viewerlgpl$
- * 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
- * $/LicenseInfo$
- */
- //-----------------------------------------------------------------------------
- // Header Files
- //-----------------------------------------------------------------------------
- #include "llviewerprecompiledheaders.h"
- #include "llviewerjointmesh.h"
- #include "llface.h"
- #include "llpolymesh.h"
- #include "llv4math.h"
- #include "llv4matrix3.h"
- #include "llv4matrix4.h"
- // Generic vectorized code, uses compiler defaults, works well for Altivec
- // on PowerPC.
- // static
- void LLViewerJointMesh::updateGeometryVectorized(LLFace *face, LLPolyMesh *mesh)
- {
- #if 0
- static LLV4Matrix4 sJointMat[32];
- LLDynamicArray<LLJointRenderData*>& joint_data = mesh->getReferenceMesh()->mJointRenderData;
- S32 j, joint_num, joint_end = joint_data.count();
- LLV4Vector3 pivot;
- //upload joint pivots/matrices
- for(j = joint_num = 0; joint_num < joint_end ; ++joint_num )
- {
- LLSkinJoint *sj;
- const LLMatrix4 * wm = joint_data[joint_num]->mWorldMatrix;
- if (NULL == (sj = joint_data[joint_num]->mSkinJoint))
- {
- sj = joint_data[++joint_num]->mSkinJoint;
- ((LLV4Matrix3)(sJointMat[j] = *wm)).multiply(sj->mRootToParentJointSkinOffset, pivot);
- sJointMat[j++].translate(pivot);
- wm = joint_data[joint_num]->mWorldMatrix;
- }
- ((LLV4Matrix3)(sJointMat[j] = *wm)).multiply(sj->mRootToJointSkinOffset, pivot);
- sJointMat[j++].translate(pivot);
- }
- F32 weight = F32_MAX;
- LLV4Matrix4 blend_mat;
- LLStrider<LLVector3> o_vertices;
- LLStrider<LLVector3> o_normals;
- LLVertexBuffer *buffer = face->mVertexBuffer;
- buffer->getVertexStrider(o_vertices, mesh->mFaceVertexOffset);
- buffer->getNormalStrider(o_normals, mesh->mFaceVertexOffset);
- const F32* weights = mesh->getWeights();
- const LLVector3* coords = mesh->getCoords();
- const LLVector3* normals = mesh->getNormals();
- for (U32 index = 0, index_end = mesh->getNumVertices(); index < index_end; ++index)
- {
- if( weight != weights[index])
- {
- S32 joint = llfloor(weight = weights[index]);
- blend_mat.lerp(sJointMat[joint], sJointMat[joint+1], weight - joint);
- }
- blend_mat.multiply(coords[index], o_vertices[index]);
- ((LLV4Matrix3)blend_mat).multiply(normals[index], o_normals[index]);
- }
- buffer->setBuffer(0);
- #endif
- }