private ShaderResourceView Create1By1Tex(Device device, Color color) {
var desc2 = new Texture2DDescription {
SampleDescription = new SampleDescription(1, 0),
Width = 1,
Height = 1,
MipLevels = 1,
ArraySize = 1,
Format = Format.R8G8B8A8_UNorm,
Usage = ResourceUsage.Dynamic,
BindFlags = BindFlags.ShaderResource,
CpuAccessFlags = CpuAccessFlags.Write
};
var texture = new Texture2D(device, desc2);
DataStream dataStream;
var db = device.ImmediateContext.MapSubresource(texture, 0, 0, MapMode.WriteDiscard, MapFlags.None, out dataStream);
dataStream.Write(color);
Utilities.Dispose(ref dataStream);
device.ImmediateContext.UnmapSubresource(texture, 0);
return texture.AsShaderResourceView();
}