public TextureGLSub(RectangleI bounds, TextureGLSingle parent)
{
// If GLWrapper is not initialized at this point, it means we do not have OpenGL available
// and thus will never draw anything. In this case it is fine if the parent texture is null.
if (GLWrapper.IsInitialized && parent == null)
{
throw new InvalidOperationException("May not construct a subtexture without a parent texture to refer to.");
}
this.bounds = bounds;
this.parent = parent;
}
public TextureGLAtlasWhite(TextureGLSingle parent)
: base(new RectangleI(0, 0, 1, 1), parent)
{
}