//-----------------------------------------------------------------------------
// LLPolyMesh()
//-----------------------------------------------------------------------------
LLPolyMesh::LLPolyMesh(LLPolyMeshSharedData *shared_data, LLPolyMesh *reference_mesh)
{
LLMemType mt(LLMemType::MTYPE_AVATAR_MESH);
llassert(shared_data);
mSharedData = shared_data;
mReferenceMesh = reference_mesh;
mAvatarp = NULL;
mVertexData = NULL;
mCurVertexCount = 0;
mFaceIndexCount = 0;
mFaceIndexOffset = 0;
mFaceVertexCount = 0;
mFaceVertexOffset = 0;
if (shared_data->isLOD() && reference_mesh)
{
mCoords = reference_mesh->mCoords;
mNormals = reference_mesh->mNormals;
mScaledNormals = reference_mesh->mScaledNormals;
mBinormals = reference_mesh->mBinormals;
mScaledBinormals = reference_mesh->mScaledBinormals;
mTexCoords = reference_mesh->mTexCoords;
mClothingWeights = reference_mesh->mClothingWeights;
}
else
{
// Allocate memory without initializing every vector
// NOTE: This makes asusmptions about the size of LLVector[234]
int nverts = mSharedData->mNumVertices;
int nfloats = nverts * (2*4 + 3*3 + 2 + 4);
//use 16 byte aligned vertex data to make LLPolyMesh SSE friendly
mVertexData = (F32*) ll_aligned_malloc_16(nfloats*4);
int offset = 0;
mCoords = (LLVector4*)(mVertexData + offset);
offset += 4*nverts;
mNormals = (LLVector4*)(mVertexData + offset);
offset += 4*nverts;
mClothingWeights = (LLVector4*)(mVertexData + offset);
offset += 4*nverts;
mTexCoords = (LLVector2*)(mVertexData + offset);
offset += 2*nverts;
// these members don't need to be 16-byte aligned, but the first one might be
// read during an aligned memcpy of mTexCoords
mScaledNormals = (LLVector3*)(mVertexData + offset);
offset += 3*nverts;
mBinormals = (LLVector3*)(mVertexData + offset);
offset += 3*nverts;
mScaledBinormals = (LLVector3*)(mVertexData + offset);
offset += 3*nverts;
initializeForMorph();
}
}
//-----------------------------------------------------------------------------
// LLPolyMesh()
//-----------------------------------------------------------------------------
LLPolyMesh::LLPolyMesh(LLPolyMeshSharedData *shared_data, LLPolyMesh *reference_mesh)
{
llassert(shared_data);
mSharedData = shared_data;
mReferenceMesh = reference_mesh;
mAvatarp = NULL;
mVertexData = NULL;
mCurVertexCount = 0;
mFaceIndexCount = 0;
mFaceIndexOffset = 0;
mFaceVertexCount = 0;
mFaceVertexOffset = 0;
if (shared_data->isLOD() && reference_mesh)
{
mCoords = reference_mesh->mCoords;
mNormals = reference_mesh->mNormals;
mScaledNormals = reference_mesh->mScaledNormals;
mBinormals = reference_mesh->mBinormals;
mScaledBinormals = reference_mesh->mScaledBinormals;
mTexCoords = reference_mesh->mTexCoords;
mClothingWeights = reference_mesh->mClothingWeights;
}
else
{
// Allocate memory without initializing every vector
// NOTE: This makes asusmptions about the size of LLVector[234]
S32 nverts = mSharedData->mNumVertices;
//make sure it's an even number of verts for alignment
nverts += nverts%2;
S32 nfloats = nverts * (
4 + //coords
4 + //normals
4 + //weights
2 + //coords
4 + //scaled normals
4 + //binormals
4); //scaled binormals
//use 16 byte aligned vertex data to make LLPolyMesh SSE friendly
mVertexData = (F32*) ll_aligned_malloc_16(nfloats*4);
S32 offset = 0;
mCoords = (LLVector4a*)(mVertexData + offset); offset += 4*nverts;
mNormals = (LLVector4a*)(mVertexData + offset); offset += 4*nverts;
mClothingWeights = (LLVector4a*)(mVertexData + offset); offset += 4*nverts;
mTexCoords = (LLVector2*)(mVertexData + offset); offset += 2*nverts;
mScaledNormals = (LLVector4a*)(mVertexData + offset); offset += 4*nverts;
mBinormals = (LLVector4a*)(mVertexData + offset); offset += 4*nverts;
mScaledBinormals = (LLVector4a*)(mVertexData + offset); offset += 4*nverts;
initializeForMorph();
}
}
