static GrabbableRGBBytePixels grabbableRGBBytePixels_fastOrSlow(BufferedImage image) ctex {
  pcall {
    GrabbableRGBBytePixels gp = grabbableRGBBytePixels(image);
    if (gp != null) ret gp;
  }
    
  int w = image.getWidth(), h = image.getHeight();
  byte[] data = new[w*h*3];
  PixelGrabber pixelGrabber = new(image, 0, 0, w, h, data, 0, w);
  if (!pixelGrabber.grabPixels())
    fail("Could not grab pixels");
      
  ret GrabbableRGBBytePixels(data, w, h, 0, w);
}

Began life as a copy of #1033307