1GL_ARB_texture_storage
2https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_texture_storage.txt
3GL_ARB_texture_storage
4
5	GL_TEXTURE_IMMUTABLE_FORMAT 0x912F
6	void glTexStorage1D (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width)
7	void glTexStorage2D (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height)
8	void glTexStorage3D (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth)
9