scope grabbableIntPixels.

static Bool #succeeded;

sbool #enable = true;

static GrabbableIntPixels grabbableIntPixels(BufferedImage img) {

  if (img == null || !enable) null;

  try {

    var result = grabbableIntPixels_impl(img);

    succeeded = result != null;

    ret result;

  } on fail {

    succeeded = false;

  }

}

static GrabbableIntPixels grabbableIntPixels_impl(BufferedImage img) {

  Raster raster = img.getRaster();

  SampleModel _sampleModel = raster.getSampleModel();

  if (!_sampleModel instanceof SinglePixelPackedSampleModel) null;

  SinglePixelPackedSampleModel sampleModel = cast _sampleModel;

  DataBufferInt dataBuffer = cast raster.getDataBuffer();

  assertEquals(1, dataBuffer.getNumBanks());

  assertEquals(DataBuffer.TYPE_INT, dataBuffer.getDataType());

  // Let's at this point assume the raster data is what we

  // think it is... (TODO: test on unusual platforms)

  int w = img.getWidth(), h = img.getHeight();

  int scanlineStride = sampleModel.getScanlineStride();

  int[] pixels = dataBuffer.getData();

  int offset = dataBuffer.getOffset();

  int translateX = raster.getSampleModelTranslateX();

  int translateY = raster.getSampleModelTranslateY();

  offset += -translateX-translateY*scanlineStride;

  ret GrabbableIntPixels(pixels, w, h, offset, scanlineStride);

}