public Sprite AddRGBA(byte[] src, Size size)
{
// Don't bother allocating empty sprites
if (size.Width == 0 || size.Height == 0)
{
return(new Sprite(currentSheet, Rectangle.Empty, 0, float3.Zero, channel, BlendMode.Alpha));
}
var rect = Allocate(size, 0, float3.Zero);
Util.FastCopyIntoRGBA(rect, src);
currentSheet.CommitBufferedData();
return(rect);
}