Method updateByteBuffer

core/src/processing/opengl/PGL.java:2321–2343

(ByteBuffer buf, byte[] arr,
                                               boolean wrap)

  protected static ByteBuffer updateByteBuffer(ByteBuffer buf, byte[] arr,
                                               boolean wrap) {
    if (USE_DIRECT_BUFFERS) {
      if (buf == null || buf.capacity() < arr.length) {
        buf = allocateDirectByteBuffer(arr.length);
      }
      buf.position(0);
      buf.put(arr);
      buf.rewind();
    } else {
      if (wrap) {
        buf = ByteBuffer.wrap(arr);
      } else {
        if (buf == null || buf.capacity() < arr.length) {
          buf = ByteBuffer.allocate(arr.length);
        }
        buf.position(0);
        buf.put(arr);
        buf.rewind();
      }
    }
    return buf;
  }


  protected static void updateByteBuffer(ByteBuffer buf, byte[] arr,