func CopyTexSubImage2D(target uint32, level int32, xoffset int32, yoffset int32, x int32, y int32, width int32, height int32) {
	syscall.Syscall9(gpCopyTexSubImage2D, 8, uintptr(target), uintptr(level), uintptr(xoffset), uintptr(yoffset), uintptr(x), uintptr(y), uintptr(width), uintptr(height), 0)
}
func CopyTexSubImage2D(target uint32, level int32, xoffset int32, yoffset int32, x int32, y int32, width int32, height int32) {
	syscall.Syscall9(gpCopyTexSubImage2D, 8, uintptr(target), uintptr(level), uintptr(xoffset), uintptr(yoffset), uintptr(x), uintptr(y), uintptr(width), uintptr(height), 0)
}
func CopyTexSubImage2D ( target uint32 , level int32 , xoffset int32 , yoffset int32 , x int32 , y int32 , width int32 , height int32 ) { syscall . Syscall9 ( gpCopyTexSubImage2D , 8 , uintptr ( target ) , uintptr ( level ) , uintptr ( xoffset ) , uintptr ( yoffset ) , uintptr ( x ) , uintptr ( y ) , uintptr ( width ) , uintptr ( height ) , 0 ) }
// copy a two-dimensional texture subimage
copy a two - dimensional texture subimage