/// <summary>
/// Function to determine if an element already exists with the same context, index and slot.
/// </summary>
/// <param name="elements">The list of elements to compare against.</param>
/// <param name="element">The element to search for.</param>
/// <param name="index">The index of the current element.</param>
/// <param name="parameterName">The name of the parameter being validated.</param>
private static void FindDuplicateElements(IList <GorgonStreamOutElement> elements, GorgonStreamOutElement element, int index, string parameterName)
{
for (int i = 0; i < elements.Count; ++i)
{
// Skip the element that we're testing against.
if (index == i)
{
continue;
}
GorgonStreamOutElement currentElement = elements[i];
if (GorgonStreamOutElement.Equals(in currentElement, in element))
{
throw new ArgumentException(string.Format(Resources.GORGFX_ERR_LAYOUT_ELEMENT_IN_USE, i, element.Context), parameterName);
}
}
}
/// <summary>
/// Function to convert this input layout into a <see cref="GorgonStreamOutLayout"/>
/// </summary>
/// <param name="stream">[Optional] The output stream to use.</param>
/// <param name="slot">[Optional] The associated stream output buffer that is bound to the pipeline.</param>
/// <returns>A new <see cref="GorgonStreamOutLayout"/> derived from this input layout.</returns>
/// <remarks>
/// <para>
/// When streaming data out from the GPU, the layout of that data must be defined as a <see cref="GorgonStreamOutLayout"/>, which is quite similar to an input layout. For convenience, this method
/// will create a new <see cref="GorgonStreamOutLayout"/> that uses the same semantics as the input layout.
/// </para>
/// </remarks>
/// <seealso cref="GorgonStreamOutLayout"/>
public GorgonStreamOutLayout ToStreamOutLayout(int stream = 0, byte slot = 0)
{
var elements = new GorgonStreamOutElement[_elements.Length];
for (int i = 0; i < _elements.Length; ++i)
{
// Only allow 64 elements.
if (i > 64)
{
break;
}
GorgonInputElement inputElement = _elements[i];
var info = new GorgonFormatInfo(inputElement.Format);
elements[i] = new GorgonStreamOutElement(inputElement.Context, 0, (byte)info.ComponentCount, slot, inputElement.Index, stream);
}
return(new GorgonStreamOutLayout(Name + " (SO)", elements));
}
