Type Definition glu_sys::glu::PFNGLCOMPRESSEDTEXTURESUBIMAGE3DPROC

type PFNGLCOMPRESSEDTEXTURESUBIMAGE3DPROC = Option<unsafe extern "C" fn(texture: GLuint, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, imageSize: GLsizei, data: *const c_void)>;