Method updateIntBuffer

core/src/processing/opengl/PGL.java:2563–2585

(IntBuffer buf, int[] arr,
                                             boolean wrap)

  protected static IntBuffer updateIntBuffer(IntBuffer buf, int[] arr,
                                             boolean wrap) {
    if (USE_DIRECT_BUFFERS || (buf != null && buf.isDirect())) {
      if (buf == null || buf.capacity() < arr.length) {
        buf = allocateDirectIntBuffer(arr.length);
      }
      buf.position(0);
      buf.put(arr);
      buf.rewind();
    } else {
      if (wrap) {
        buf = IntBuffer.wrap(arr);
      } else {
        if (buf == null || buf.capacity() < arr.length) {
          buf = IntBuffer.allocate(arr.length);
        }
        buf.position(0);
        buf.put(arr);
        buf.rewind();
      }
    }
    return buf;
  }


  protected static void updateIntBuffer(IntBuffer buf, int[] arr,