public VertexDeclaration GetDeclaration <T>(GraphicsDevice device)
{
ValidateDevice(device);
int index = Ident.TypeIndex <T>();
while (index > this.declarations.Length)
{
Array.Resize(ref this.declarations, this.declarations.Length * 2);
}
if (this.declarations[index] != null)
{
return(this.declarations[index]);
}
VertexElement[] elements = GetDeclaration(typeof(T));
if (device == null)
{
return(null);
}
VertexDeclaration declaration;
lock (hashingDecl)
{
hashingDecl.SetFrom(typeof(T), typeHash, ref typeIndex);
if (declarationHash.TryGetValue(hashingDecl, out declaration))
{
this.declarations[index] = declaration;
return(declaration);
}
}
for (int i = 0; i < elements.Length; i++)
{
ValidateFormat(typeof(T), elements[i].VertexElementFormat);
}
ElementHash ehash = new ElementHash(elements);
elementHash.TryGetValue(ehash, out declaration);
if (declaration == null)
{
declaration = new VertexDeclaration(device, elements);
}
this.declarations[index] = declaration;
declarationHash.Add(new DeclarationHash(typeof(T), typeHash, ref typeIndex), declaration);
if (elementHash.ContainsKey(ehash) == false)
{
elementHash.Add(ehash, declaration);
}
return(declaration);
}
public VertexDeclaration GetDeclaration <T>()
{
int index = Ident.TypeIndex <T>();
while (index > _declarations.Length)
{
Array.Resize(ref _declarations, _declarations.Length * 2);
}
if (_declarations[index] != null)
{
return(_declarations[index]);
}
VertexElement[] elements = GetDeclaration(typeof(T));
if (_context == null)
{
return(null);
}
VertexDeclaration declaration;
lock (_hashingDecl)
{
_hashingDecl.SetFrom(typeof(T), _typeHash, ref _typeIndex);
if (_declarationHash.TryGetValue(_hashingDecl, out declaration))
{
_declarations[index] = declaration;
return(declaration);
}
}
for (int i = 0; i < elements.Length; i++)
{
ValidateFormat(typeof(T), elements[i].Type);
}
ElementHash ehash = new ElementHash(elements);
_elementHash.TryGetValue(ehash, out declaration);
if (declaration == null)
{
declaration = new VertexDeclaration(_context, elements);
}
_declarations[index] = declaration;
_declarationHash.Add(new DeclarationHash(typeof(T), _typeHash, ref _typeIndex), declaration);
if (_elementHash.ContainsKey(ehash) == false)
{
_elementHash.Add(ehash, declaration);
}
return(declaration);
}