/// <summary>
/// Unlink a resource used by this UserGraphicsResource.
/// </summary>
/// <param name="graphicsResource">
/// The <see cref="IGraphicsResource"/> that will be unlinked from this UserGraphicsResource. It will be unreferenced.
/// </param>
/// <exception cref="ArgumentNullException">
/// Exception thrown if <paramref name="graphicsResource"/> is null.
/// </exception>
protected void UnlinkResource(IGraphicsResource graphicsResource)
{
if (graphicsResource == null)
throw new ArgumentNullException("graphicsResource");
if (ObjectNamespace != Guid.Empty && graphicsResource.ObjectNamespace != Guid.Empty && ObjectNamespace != graphicsResource.ObjectNamespace)
throw new ArgumentException("namespace mismatch", "graphicsResource");
// Unreference at disposition
bool res = _GpuResources.Remove(graphicsResource);
Debug.Assert(res);
// No more referenced
graphicsResource.DecRef();
}
/// <summary>
/// Set uniform variable state.
/// </summary>
/// <param name="uniformName">
///
/// </param>
/// <param name="value">
///
/// </param>
public void SetUniformState(string uniformName, object value)
{
if (uniformName == null)
{
throw new ArgumentNullException("uniformName");
}
UniformStateMember uniformStateMember;
if (_UniformProperties.TryGetValue(uniformName, out uniformStateMember))
{
UniformStateVariable uniformStateVariable = (UniformStateVariable)uniformStateMember;
IGraphicsResource prevResource = uniformStateVariable.UniformValue as IGraphicsResource;
if (prevResource != null)
{
prevResource.DecRef();
}
IGraphicsResource currResource = value as IGraphicsResource;
if (currResource != null)
{
currResource.IncRef();
}
uniformStateVariable.UniformValue = value;
}
else
{
IGraphicsResource currResource = value as IGraphicsResource;
if (currResource != null)
{
currResource.IncRef();
}
_UniformProperties.Add(uniformName, new UniformStateVariable(uniformName, value));
}
}
/// <summary>
/// Dispose resources hold by this GraphicsState.
/// </summary>
public override void Dispose()
{
if (_UniformBuffer != null)
{
_UniformBuffer.DecRef();
}
#if ENABLE_REFS_ON_COPY
foreach (KeyValuePair <string, UniformStateMember> pair in UniformState)
{
if (pair.Value.GetUniformType().GetInterface("IGraphicsResource") == null)
{
continue;
}
IGraphicsResource graphicsResource = pair.Value.GetUniformValue(this) as IGraphicsResource;
if (graphicsResource == null)
{
continue;
}
graphicsResource.DecRef();
}
#endif
}
