/** Optimizes the given set of vertices */
XRESULT D3D11VertexBuffer::OptimizeFaces(VERTEX_INDEX* indices, byte* vertices, unsigned int numIndices, unsigned int numVertices, unsigned int stride)
{
return XR_SUCCESS;
unsigned int numFaces = numIndices / 3;
DWORD* remap = new DWORD[numFaces];
if(FAILED(D3DXOptimizeFaces(indices, numFaces, numVertices, FALSE, (DWORD *)remap)))
{
delete[] remap;
return XR_FAILED;
}
// Remap vertices
VERTEX_INDEX* ibCopy = new VERTEX_INDEX[numFaces * 3];
memcpy(ibCopy, indices, numFaces * 3 * sizeof(VERTEX_INDEX));
for(unsigned int i=0;i<numFaces;i++)
{
// Copy the remapped face
memcpy( &indices[i * 3], &ibCopy[ remap[i] * 3], 3 * sizeof(VERTEX_INDEX));
}
delete[] ibCopy;
delete[] remap;
return XR_SUCCESS;
}
ETOOLS_API HRESULT WINAPI
D3DX_OptimizeFaces(
LPCVOID pIndices,
UINT NumFaces,
UINT NumVertices,
BOOL Indices32Bit,
DWORD * pFaceRemap)
{
return D3DXOptimizeFaces(pIndices, NumFaces, NumVertices, Indices32Bit, pFaceRemap);
}
//--------------------------------------------------------------------------------------
// Optimize grid indices for post-vertex cache
//--------------------------------------------------------------------------------------
void GridOptimizeIndices( WORD* pIndexBuffer, int nNumIndex, int nNumVertex )
{
// Optimize faces for post-transform cache
DWORD* pRemappedFaces = new DWORD [nNumIndex/3];
D3DXOptimizeFaces( pIndexBuffer, nNumIndex/3, nNumVertex, FALSE, pRemappedFaces );
// Allocate temporary index buffer and copy current indices into it
WORD* pTmpIndexBuffer = new WORD [nNumIndex];
memcpy( pTmpIndexBuffer, pIndexBuffer, nNumIndex * sizeof( WORD ) );
// Remap triangles
for ( int i=0; i < (int)nNumIndex/3; ++i )
{
int newFace = (int)pRemappedFaces[i];
for ( int j=0; j < 3; ++j )
{
pIndexBuffer[newFace*3+j] = pTmpIndexBuffer[i*3+j];
}
}
delete[] pTmpIndexBuffer;
delete[] pRemappedFaces;
}
void OGF::Stripify ()
{
if (progressive_test()) return; // Mesh already progressive - don't stripify it
// fast verts
if (fast_path_data.vertices.size() && fast_path_data.faces.size())
/*
try {
xr_vector<u16> indices,permute;
// Stripify
u16* F = (u16*)&*x_faces.begin();
indices.assign (F,F+(x_faces.size()*3) );
permute.resize (x_vertices.size() );
xrStripify (indices,permute,c_vCacheSize,0);
// Copy faces
CopyMemory (&*x_faces.begin(),&*indices.begin(),(u32)indices.size()*sizeof(u16));
// Permute vertices
vec_XV temp_list = x_vertices;
for(u32 i=0; i<temp_list.size(); i++)
x_vertices[i]=temp_list[permute[i]];
} catch (...) {
clMsg ("ERROR: [fast-vert] Stripifying failed. Dump below.");
DumpFaces ();
*/
{
// alternative stripification - faces
{
DWORD* remap = xr_alloc<DWORD> (fast_path_data.faces.size());
HRESULT rhr = D3DXOptimizeFaces (&fast_path_data.faces.front(),fast_path_data.faces.size(),fast_path_data.vertices.size(),FALSE,remap);
R_CHK (rhr);
vecOGF_F _source = fast_path_data.faces;
for (u32 it=0; it<_source.size(); it++) fast_path_data.faces[it] = _source[remap[it]];
xr_free (remap);
}
// alternative stripification - vertices
{
DWORD* remap = xr_alloc<DWORD> (fast_path_data.vertices.size());
HRESULT rhr = D3DXOptimizeVertices (&fast_path_data.faces.front(),fast_path_data.faces.size(),fast_path_data.vertices.size(),FALSE,remap);
R_CHK (rhr);
vec_XV _source = fast_path_data.vertices;
for(u32 it=0; it<_source.size(); it++) fast_path_data.vertices[remap[it]] = _source[it];
for(u32 it=0; it<fast_path_data.faces.size(); it++) for (u32 j=0; j<3; j++) fast_path_data.faces[it].v[j]= (u16)remap[fast_path_data.faces[it].v[j]];
xr_free (remap);
}
}
// normal verts
try {
xr_vector<u16> indices,permute;
// Stripify
u16* F = (u16*)&*data.faces.begin();
indices.assign (F,F+(data.faces.size()*3));
permute.resize (data.vertices.size());
xrStripify (indices,permute,c_vCacheSize,0);
// Copy faces
CopyMemory (&*data.faces.begin(),&*indices.begin(),(u32)indices.size()*sizeof(u16));
// Permute vertices
vecOGF_V temp_list = data.vertices;
for(u32 i=0; i<temp_list.size(); i++)
data.vertices[i]=temp_list[permute[i]];
} catch (...) {
clMsg ("ERROR: [slow-vert] Stripifying failed. Dump below.");
DumpFaces ();
}
}
