public InputLayout GetInputLayout(EffectInputSignature effectInputSignature, VertexArrayLayout vertexArrayLayout)
{
var inputKey = new InputKey(effectInputSignature, vertexArrayLayout);
InputLayout inputLayout;
// TODO: Check if it is really worth to use ConcurrentDictionary
lock (registeredSignatures)
{
if (!registeredSignatures.TryGetValue(inputKey, out inputLayout))
{
try
{
inputLayout = new InputLayout(graphicsDevice.NativeDevice, effectInputSignature.NativeSignature, vertexArrayLayout.InputElements);
}
catch (Exception)
{
throw new InvalidOperationException("The provided vertex array input elements are not matching the ones of the shader." +
" [Details: EffectInputSignature='{0}', VertexArrayLayout='{1}]".ToFormat(effectInputSignature.ToString(), vertexArrayLayout.ToString()));
}
registeredSignatures.Add(inputKey, inputLayout);
}
((IUnknown)inputLayout).AddReference();
}
return(inputLayout);
}