/// <summary>
/// Performs a deep copy of this <see cref="IGraphicsState"/>.
/// </summary>
/// <returns>
/// It returns the equivalent of this <see cref="IGraphicsState"/>, but all objects referenced
/// are not referred by both instances.
/// </returns>
public override IGraphicsState Push()
{
ShaderUniformStateBase copiedState = (ShaderUniformStateBase)base.Push();
if (copiedState._UniformBuffer != null)
{
copiedState._UniformBuffer.IncRef();
}
#if ENABLE_REFS_ON_COPY
foreach (KeyValuePair <string, UniformStateMember> pair in copiedState.UniformState)
{
//if (pair.Value.GetUniformType().GetInterface("IGraphicsResource") == null)
// continue;
IGraphicsResource graphicsResource = pair.Value.GetUniformValue(this) as IGraphicsResource;
if (graphicsResource == null)
{
continue;
}
// Copied share references
graphicsResource.IncRef();
}
#endif
return(copiedState);
}
/// <summary>
/// Merge this state with another one.
/// </summary>
/// <param name="state">
/// A <see cref="IGraphicsState"/> having the same <see cref="StateIdentifier"/> of this state.
/// </param>
public override void Merge(IGraphicsState state)
{
if (state == null)
{
throw new ArgumentNullException("state");
}
ShaderUniformStateBase otherState = state as ShaderUniformStateBase;
if (otherState == null)
{
throw new ArgumentException("not a ShaderUniformState", "state");
}
}