| /* AreaAveragingScaleFilter.java -- Java class for filtering images |
| Copyright (C) 1999 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package java.awt.image; |
| |
| /** |
| * This filter should produce images which do not have image artifacts |
| * like broken lines which were originally unbroken. The cost is of |
| * course speed. Using bi-linear interpolation here against 4 pixel |
| * points should give the desired results although Sun does not |
| * specify what the exact algorithm should be. |
| * <br> |
| * Currently this filter does nothing and needs to be implemented. |
| * |
| * @author C. Brian Jones (cbj@gnu.org) |
| */ |
| public class AreaAveragingScaleFilter extends ReplicateScaleFilter |
| { |
| /** |
| * Construct an instance of <code>AreaAveragingScaleFilter</code> which |
| * should be used in conjunction with a <code>FilteredImageSource</code> |
| * object. |
| * |
| * @param width the width of the destination image |
| * @param height the height of the destination image |
| */ |
| public AreaAveragingScaleFilter(int width, int height) { |
| super(width, height); |
| } |
| |
| /** |
| * The <code>ImageProducer</code> should call this method with a |
| * bit mask of hints from any of <code>RANDOMPIXELORDER</code>, |
| * <code>TOPDOWNLEFTRIGHT</code>, <code>COMPLETESCANLINES</code>, |
| * <code>SINGLEPASS</code>, <code>SINGLEFRAME</code> from the |
| * <code>ImageConsumer</code> interface. |
| * <br> |
| * FIXME - more than likely Sun's implementation desires |
| * <code>TOPDOWNLEFTRIGHT</code> order and this method is overloaded here |
| * in order to assure that mask is part of the hints added to |
| * the consumer. |
| * |
| * @param flags a bit mask of hints |
| * @see ImageConsumer |
| */ |
| public void setHints(int flags) |
| { |
| consumer.setHints(flags); |
| } |
| |
| /** |
| * This function delivers a rectangle of pixels where any |
| * pixel(m,n) is stored in the array as a <code>byte</code> at |
| * index (n * scansize + m + offset). |
| * |
| * @param x the x coordinate of the rectangle |
| * @param y the y coordinate of the rectangle |
| * @param w the width of the rectangle |
| * @param h the height of the rectangle |
| * @param model the <code>ColorModel</code> used to translate the pixels |
| * @param pixels the array of pixel values |
| * @param offset the index of the first pixels in the <code>pixels</code> array |
| * @param scansize the width to use in extracting pixels from the <code>pixels</code> array |
| */ |
| public void setPixels(int x, int y, int w, int h, |
| ColorModel model, byte[] pixels, int offset, int scansize) |
| { |
| consumer.setPixels(x, y, w, h, model, pixels, offset, scansize); |
| } |
| |
| /** |
| * This function delivers a rectangle of pixels where any |
| * pixel(m,n) is stored in the array as an <code>int</code> at |
| * index (n * scansize + m + offset). |
| * |
| * @param x the x coordinate of the rectangle |
| * @param y the y coordinate of the rectangle |
| * @param w the width of the rectangle |
| * @param h the height of the rectangle |
| * @param model the <code>ColorModel</code> used to translate the pixels |
| * @param pixels the array of pixel values |
| * @param offset the index of the first pixels in the <code>pixels</code> array |
| * @param scansize the width to use in extracting pixels from the <code>pixels</code> array |
| */ |
| public void setPixels(int x, int y, int w, int h, |
| ColorModel model, int[] pixels, int offset, int scansize) |
| { |
| consumer.setPixels(x, y, w, h, model, pixels, offset, scansize); |
| } |
| |
| } |
| |