using System.Runtime.InteropServices;

namespace XCEngine.Rendering
{
    [StructLayout(LayoutKind.Sequential)]
    public struct RenderStateBlock
    {
        public RenderStateMask mask;
        public DepthState depthState;
        public StencilState stencilState;
        public byte stencilReference;

        public bool hasOverrides =>
            mask != RenderStateMask.None;

        public static RenderStateBlock CreateDefault()
        {
            return new RenderStateBlock
            {
                mask = RenderStateMask.None,
                depthState = DepthState.CreateDefault(),
                stencilState = StencilState.CreateDefault(),
                stencilReference = 0
            };
        }
    }
}