Function gl::GetCompressedTextureSubImage

pub unsafe fn GetCompressedTextureSubImage(
    texture: GLuint,
    level: GLint,
    xoffset: GLint,
    yoffset: GLint,
    zoffset: GLint,
    width: GLsizei,
    height: GLsizei,
    depth: GLsizei,
    bufSize: GLsizei,
    pixels: *mut c_void
)