GL_APPLE_texture_range
http://developer.apple.com/opengl/extensions/apple_texture_range.html
	GL_TEXTURE_STORAGE_HINT_APPLE 0x85BC
	GL_STORAGE_PRIVATE_APPLE 0x85BD
	GL_STORAGE_CACHED_APPLE 0x85BE
	GL_STORAGE_SHARED_APPLE 0x85BF
	GL_TEXTURE_RANGE_LENGTH_APPLE 0x85B7
	GL_TEXTURE_RANGE_POINTER_APPLE 0x85B8
	void glTextureRangeAPPLE (GLenum target, GLsizei length, GLvoid *pointer)
	void glGetTexParameterPointervAPPLE (GLenum target, GLenum pname, GLvoid **params)