How to use

decodePass

method

in

org.apache.batik.ext.awt.image.codec.png.PNGImage

private void decodeImage(boolean useInterlacing) {
  if (!useInterlacing) {
    decodePass(theTile, 0, 0, 1, 1, width, height);
  } else {
    decodePass(theTile, 0, 0, 8, 8, (width + 7)/8, (height + 7)/8);
    decodePass(theTile, 4, 0, 8, 8, (width + 3)/8, (height + 7)/8);
    decodePass(theTile, 0, 4, 4, 8, (width + 3)/4, (height + 3)/8);
    decodePass(theTile, 2, 0, 4, 4, (width + 1)/4, (height + 3)/4);
    decodePass(theTile, 0, 2, 2, 4, (width + 1)/2, (height + 1)/4);
    decodePass(theTile, 1, 0, 2, 2, width/2, (height + 1)/2);
    decodePass(theTile, 0, 1, 1, 2, width, height/2);
  }
}

private void decodeImage(boolean useInterlacing) {
  if (!useInterlacing) {
    decodePass(theTile, 0, 0, 1, 1, width, height);
  } else {
    decodePass(theTile, 0, 0, 8, 8, (width + 7)/8, (height + 7)/8);
    decodePass(theTile, 4, 0, 8, 8, (width + 3)/8, (height + 7)/8);
    decodePass(theTile, 0, 4, 4, 8, (width + 3)/4, (height + 3)/8);
    decodePass(theTile, 2, 0, 4, 4, (width + 1)/4, (height + 3)/4);
    decodePass(theTile, 0, 2, 2, 4, (width + 1)/2, (height + 1)/4);
    decodePass(theTile, 1, 0, 2, 2, width/2, (height + 1)/2);
    decodePass(theTile, 0, 1, 1, 2, width, height/2);
  }
}

private void decodeImage(boolean useInterlacing) {
  if (!useInterlacing) {
    decodePass(theTile, 0, 0, 1, 1, width, height);
  } else {
    decodePass(theTile, 0, 0, 8, 8, (width + 7)/8, (height + 7)/8);
    decodePass(theTile, 4, 0, 8, 8, (width + 3)/8, (height + 7)/8);
    decodePass(theTile, 0, 4, 4, 8, (width + 3)/4, (height + 3)/8);
    decodePass(theTile, 2, 0, 4, 4, (width + 1)/4, (height + 3)/4);
    decodePass(theTile, 0, 2, 2, 4, (width + 1)/2, (height + 1)/4);
    decodePass(theTile, 1, 0, 2, 2, width/2, (height + 1)/2);
    decodePass(theTile, 0, 1, 1, 2, width, height/2);
  }
}

private void decodeImage(boolean useInterlacing) {
  if (!useInterlacing) {
    decodePass(theTile, 0, 0, 1, 1, width, height);
  } else {
    decodePass(theTile, 0, 0, 8, 8, (width + 7)/8, (height + 7)/8);
    decodePass(theTile, 4, 0, 8, 8, (width + 3)/8, (height + 7)/8);
    decodePass(theTile, 0, 4, 4, 8, (width + 3)/4, (height + 3)/8);
    decodePass(theTile, 2, 0, 4, 4, (width + 1)/4, (height + 3)/4);
    decodePass(theTile, 0, 2, 2, 4, (width + 1)/2, (height + 1)/4);
    decodePass(theTile, 1, 0, 2, 2, width/2, (height + 1)/2);
    decodePass(theTile, 0, 1, 1, 2, width, height/2);
  }
}