//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
void MeshReadHelper::lockIndexBuffer()
{
IndexData* indexData = mCurSubMeshInfoF->indexData;
if(indexData == mIndexData)
return; // continue using the same IndexData
if(!indexData)
{
unlockIndexBuffer();
return; // error, exiting with mIndexPtr == nullptr
}
mIndexData = indexData;
mIndexStart = indexData->indexStart;
mIndexCount = indexData->indexCount;
HardwareIndexBufferSharedPtr indexBuffer = mIndexData->indexBuffer;
if(indexBuffer == mIndexBuffer)
return; // continue using the same hardware buffer
unlockIndexBuffer();
mIndexData = indexData;
mIndexBuffer = indexBuffer;
if(mIndexBuffer.isNull())
return; // error, exiting with mIndexPtr == nullptr
mIndexPtr = (uint8*) mIndexBuffer->lock( HardwareBuffer::HBL_READ_ONLY );
mIndexSize = mIndexBuffer->getIndexSize();
mIndexType = mIndexBuffer->getType();
}
//-----------------------------------------------------------------------
void MeshReadHelper::unlockAllBuffers()
{
unlockIndexBuffer();
unlockVertexBuffer();
unlockTexCoordBuffer();
resetCurPointers();
}
//
// Creates a copy of the mesh which has no image or material specifications
DirectX::Mesh* DirectX::Mesh::cloneOutline( Mesh* out )
{
if( !out ) out = new Mesh( ); out->release( );
unsigned int nVertices = m_mesh->GetNumVertices( );
unsigned int nFaces = m_mesh->GetNumFaces( );
unsigned long options = m_mesh->GetOptions( );
unsigned int fvf = m_mesh->GetFVF( );
void* vertices = lockVertexBuffer( D3DLOCK_READONLY );
void* indices = lockIndexBuffer( D3DLOCK_READONLY );
out->create( vertices, indices, fvf, nVertices, nFaces, options );
unlockVertexBuffer( ); unlockIndexBuffer( );
out->update( ); return out;
}