code: func CompressedTextureSubImage2D(texture uint32, level int32, xoffset int32, yoffset int32, width int32, height int32, format uint32, imageSize int32, data unsafe.Pointer) {
  	syscall.Syscall9(gpCompressedTextureSubImage2D, 9, uintptr(texture), uintptr(level), uintptr(xoffset), uintptr(yoffset), uintptr(width), uintptr(height), uintptr(format), uintptr(imageSize), uintptr(data))
  }
docs: // specify a two-dimensional texture subimage in a compressed format