Direct3D: TextureLoad.FromStream的问题.

Bitmap bmp = new Bitmap();

.. Draw sth on bmp

MemoryStream ms = new MemoryStream();

bmp.Save(ms, bmp.Length);

ms.Position = 0;       // 这步是不可缺的,否则异常

Texture texture = TextureLoad.FromStream(ms, ms.Length);