/* filterImage.java -- some checks for the filter(Image) method of the
ConvolveOp class.
Copyright (C) 2006 Francis Kung <fkung@redhat.com>
This file is part of Mauve.
Mauve 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.
Mauve 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 Mauve; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
*/
// Tags: JDK1.2
package gnu.testlet.java.awt.image.ConvolveOp;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
import java.awt.Graphics2D;
import java.awt.geom.Line2D;
import java.awt.image.BufferedImage;
import java.awt.image.ConvolveOp;
import java.awt.image.Kernel;
import java.awt.image.WritableRaster;
/**
* Checks the filter(BufferedImage) method in the {@link ConvolveOp} class.
*/
public class filterImage implements Testlet
{
/**
* Runs the test using the specified harness.
*
* @param harness the test harness (<code>null</code> not permitted).
*/
public void test(TestHarness harness)
{
testDefaults(harness);
testFilter(harness);
testPremultiplied(harness);
}
private void testDefaults(TestHarness harness)
{
harness.checkPoint("testDefaults");
// Create an image to work on
BufferedImage img = new BufferedImage(20, 20, BufferedImage.TYPE_USHORT_GRAY);
Graphics2D g = (Graphics2D)img.getGraphics();
g.draw(new Line2D.Double(0, 0, 20, 20));
Kernel k1 = new Kernel(3, 3, new float[] {0.1f,0.2f,0.3f,
0.4f,0.5f,0.6f,
0.7f,0.8f,0.9f});
ConvolveOp op = new ConvolveOp(k1, ConvolveOp.EDGE_ZERO_FILL, null);
// Src and dst images cannot be the same
try
{
op.filter(img, img);
harness.check(false);
}
catch (IllegalArgumentException e)
{
harness.check(true);
}
// Src and dst are different sizes (allowed)
BufferedImage dst = new BufferedImage(30, 40, BufferedImage.TYPE_USHORT_GRAY);
try
{
op.filter(img, dst);
harness.check(true);
}
catch (IllegalArgumentException e)
{
harness.check(false);
}
// Src and dst have different tpyes (allowed)
dst = new BufferedImage(20, 20, BufferedImage.TYPE_INT_ARGB);
try
{
//op.filter(img, dst);
harness.check(true);
}
catch (IllegalArgumentException e)
{
harness.check(false);
}
}
private void testFilter(TestHarness harness)
{
harness.checkPoint("testFilter");
// Create an image to work on
BufferedImage img = new BufferedImage(5, 5, BufferedImage.TYPE_INT_ARGB);
WritableRaster r = img.getRaster();
for (int i = 0; i < r.getHeight(); i++)
for (int j = 0; j < r.getWidth(); j++)
{
r.setSample(j, i, 0, i * 5 + j * 8);
r.setSample(j, i, 1, (r.getHeight() - i) * 5 + (r.getWidth() - j) * 8);
r.setSample(j, i, 2, 150);
if (i > (r.getHeight() / 2) && j > (r.getWidth() / 2))
r.setSample(j, i, 3, 200);
else
r.setSample(j, i, 3, 0);
}
Kernel k1 = new Kernel(3, 3, new float[] {0.2f,0.3f,0.5f,
0.4f,0.6f,0.7f,
0.6f,0.9f,0.8f});
ConvolveOp op = new ConvolveOp(k1, ConvolveOp.EDGE_ZERO_FILL, null);
BufferedImage dst = op.filter(img, null);
WritableRaster dest = dst.getRaster();
harness.check(img.isAlphaPremultiplied(), false);
harness.check(dst.isAlphaPremultiplied(), false);
harness.check(dest.getSample(0, 0, 0), 0);
harness.check(dest.getSample(1, 0, 0), 0);
harness.check(dest.getSample(2, 0, 0), 0);
harness.check(dest.getSample(3, 0, 0), 0);
harness.check(dest.getSample(4, 0, 0), 0);
harness.check(dest.getSample(0, 1, 0), 0);
harness.check(dest.getSample(1, 1, 0), 52);
harness.check(dest.getSample(2, 1, 0), 92);
harness.check(dest.getSample(3, 1, 0), 132);
harness.check(dest.getSample(4, 1, 0), 0);
harness.check(dest.getSample(0, 2, 0), 0);
harness.check(dest.getSample(1, 2, 0), 77);
harness.check(dest.getSample(2, 2, 0), 117);
harness.check(dest.getSample(3, 2, 0), 157);
harness.check(dest.getSample(4, 2, 0), 0);
harness.check(dest.getSample(0, 3, 0), 0);
harness.check(dest.getSample(1, 3, 0), 102);
harness.check(dest.getSample(2, 3, 0), 142);
harness.check(dest.getSample(3, 3, 0), 182);
harness.check(dest.getSample(4, 3, 0), 0);
harness.check(dest.getSample(0, 4, 0), 0);
harness.check(dest.getSample(1, 4, 0), 0);
harness.check(dest.getSample(2, 4, 0), 0);
harness.check(dest.getSample(3, 4, 0), 0);
harness.check(dest.getSample(4, 4, 0), 0);
harness.check(dest.getSample(0, 0, 1), 0);
harness.check(dest.getSample(1, 0, 1), 0);
harness.check(dest.getSample(2, 0, 1), 0);
harness.check(dest.getSample(3, 0, 1), 0);
harness.check(dest.getSample(4, 0, 1), 0);
harness.check(dest.getSample(0, 1, 1), 0);
harness.check(dest.getSample(1, 1, 1), 255);
harness.check(dest.getSample(2, 1, 1), 232);
harness.check(dest.getSample(3, 1, 1), 192);
harness.check(dest.getSample(4, 1, 1), 0);
harness.check(dest.getSample(0, 2, 1), 0);
harness.check(dest.getSample(1, 2, 1), 247);
harness.check(dest.getSample(2, 2, 1), 207);
harness.check(dest.getSample(3, 2, 1), 167);
harness.check(dest.getSample(4, 2, 1), 0);
harness.check(dest.getSample(0, 3, 1), 0);
harness.check(dest.getSample(1, 3, 1), 222);
harness.check(dest.getSample(2, 3, 1), 182);
harness.check(dest.getSample(3, 3, 1), 142);
harness.check(dest.getSample(4, 3, 1), 0);
harness.check(dest.getSample(0, 4, 1), 0);
harness.check(dest.getSample(1, 4, 1), 0);
harness.check(dest.getSample(2, 4, 1), 0);
harness.check(dest.getSample(3, 4, 1), 0);
harness.check(dest.getSample(4, 4, 1), 0);
harness.check(dest.getSample(0, 0, 2), 0);
harness.check(dest.getSample(1, 0, 2), 0);
harness.check(dest.getSample(2, 0, 2), 0);
harness.check(dest.getSample(3, 0, 2), 0);
harness.check(dest.getSample(4, 0, 2), 0);
harness.check(dest.getSample(0, 1, 2), 0);
harness.check(dest.getSample(1, 1, 2), 255);
harness.check(dest.getSample(2, 1, 2), 255);
harness.check(dest.getSample(3, 1, 2), 255);
harness.check(dest.getSample(4, 1, 2), 0);
harness.check(dest.getSample(0, 2, 2), 0);
harness.check(dest.getSample(1, 2, 2), 255);
harness.check(dest.getSample(2, 2, 2), 255);
harness.check(dest.getSample(3, 2, 2), 255);
harness.check(dest.getSample(4, 2, 2), 0);
harness.check(dest.getSample(0, 3, 2), 0);
harness.check(dest.getSample(1, 3, 2), 255);
harness.check(dest.getSample(2, 3, 2), 255);
harness.check(dest.getSample(3, 3, 2), 255);
harness.check(dest.getSample(4, 3, 2), 0);
harness.check(dest.getSample(0, 4, 2), 0);
harness.check(dest.getSample(1, 4, 2), 0);
harness.check(dest.getSample(2, 4, 2), 0);
harness.check(dest.getSample(3, 4, 2), 0);
harness.check(dest.getSample(4, 4, 2), 0);
harness.check(dest.getSample(0, 0, 3), 0);
harness.check(dest.getSample(1, 0, 3), 0);
harness.check(dest.getSample(2, 0, 3), 0);
harness.check(dest.getSample(3, 0, 3), 0);
harness.check(dest.getSample(4, 0, 3), 0);
harness.check(dest.getSample(0, 1, 3), 0);
harness.check(dest.getSample(1, 1, 3), 0);
harness.check(dest.getSample(2, 1, 3), 0);
harness.check(dest.getSample(3, 1, 3), 0);
harness.check(dest.getSample(4, 1, 3), 0);
harness.check(dest.getSample(0, 2, 3), 0);
harness.check(dest.getSample(1, 2, 3), 0);
harness.check(dest.getSample(2, 2, 3) - 39 >= 0 // allow rounding error
&& dest.getSample(2, 2, 3) - 39 <= 1);
harness.check(dest.getSample(3, 2, 3), 100);
harness.check(dest.getSample(4, 2, 3), 0);
harness.check(dest.getSample(0, 3, 3), 0);
harness.check(dest.getSample(1, 3, 3), 0);
harness.check(dest.getSample(2, 3, 3) - 119 >= 0 // allow rounding error
&& dest.getSample(2, 3, 3) - 119 <= 1);
harness.check(dest.getSample(3, 3, 3), 255);
harness.check(dest.getSample(4, 3, 3), 0);
harness.check(dest.getSample(0, 4, 3), 0);
harness.check(dest.getSample(1, 4, 3), 0);
harness.check(dest.getSample(2, 4, 3), 0);
harness.check(dest.getSample(3, 4, 3), 0);
harness.check(dest.getSample(4, 4, 3), 0);
}
// Test the pre-multiplied alpha stuff
private void testPremultiplied(TestHarness harness)
{
harness.checkPoint("testPremultiplied");
// Create an image to work on
BufferedImage img = new BufferedImage(5, 5, BufferedImage.TYPE_INT_ARGB_PRE);
WritableRaster r = img.getRaster();
for (int i = 0; i < r.getHeight(); i++)
for (int j = 0; j < r.getWidth(); j++)
{
r.setSample(j, i, 0, i * 5 + j * 8);
r.setSample(j, i, 1, (r.getHeight() - i) * 5 + (r.getWidth() - j) * 8);
r.setSample(j, i, 2, 150);
if (i > (r.getHeight() / 2) && j > (r.getWidth() / 2))
r.setSample(j, i, 3, 200);
else
r.setSample(j, i, 3, 0);
}
Kernel k1 = new Kernel(3, 3, new float[] {0.2f,0.3f,0.5f,
0.4f,0.6f,0.7f,
0.6f,0.9f,0.8f});
ConvolveOp op = new ConvolveOp(k1, ConvolveOp.EDGE_ZERO_FILL, null);
BufferedImage dst = new BufferedImage(5, 5, BufferedImage.TYPE_INT_ARGB);
dst = op.filter(img, dst);
WritableRaster dest = dst.getRaster();
harness.check(img.isAlphaPremultiplied(), true);
harness.check(dst.isAlphaPremultiplied(), false);
// The following test values are COMPLETELY IDENTICAL to those in
// testFilter, even though this does a premultiplied conversion and
// testFilter does not. It seems that the reference implementation
// IGNORES the pre-multiplied status of images, contrary to the spec.
harness.check(dest.getSample(0, 0, 0), 0);
harness.check(dest.getSample(1, 0, 0), 0);
harness.check(dest.getSample(2, 0, 0), 0);
harness.check(dest.getSample(3, 0, 0), 0);
harness.check(dest.getSample(4, 0, 0), 0);
harness.check(dest.getSample(0, 1, 0), 0);
harness.check(dest.getSample(1, 1, 0), 52);
harness.check(dest.getSample(2, 1, 0), 92);
harness.check(dest.getSample(3, 1, 0), 132);
harness.check(dest.getSample(4, 1, 0), 0);
harness.check(dest.getSample(0, 2, 0), 0);
harness.check(dest.getSample(1, 2, 0), 77);
harness.check(dest.getSample(2, 2, 0), 117);
harness.check(dest.getSample(3, 2, 0), 157);
harness.check(dest.getSample(4, 2, 0), 0);
harness.check(dest.getSample(0, 3, 0), 0);
harness.check(dest.getSample(1, 3, 0), 102);
harness.check(dest.getSample(2, 3, 0), 142);
harness.check(dest.getSample(3, 3, 0), 182);
harness.check(dest.getSample(4, 3, 0), 0);
harness.check(dest.getSample(0, 4, 0), 0);
harness.check(dest.getSample(1, 4, 0), 0);
harness.check(dest.getSample(2, 4, 0), 0);
harness.check(dest.getSample(3, 4, 0), 0);
harness.check(dest.getSample(4, 4, 0), 0);
harness.check(dest.getSample(0, 0, 1), 0);
harness.check(dest.getSample(1, 0, 1), 0);
harness.check(dest.getSample(2, 0, 1), 0);
harness.check(dest.getSample(3, 0, 1), 0);
harness.check(dest.getSample(4, 0, 1), 0);
harness.check(dest.getSample(0, 1, 1), 0);
harness.check(dest.getSample(1, 1, 1), 255);
harness.check(dest.getSample(2, 1, 1), 232);
harness.check(dest.getSample(3, 1, 1), 192);
harness.check(dest.getSample(4, 1, 1), 0);
harness.check(dest.getSample(0, 2, 1), 0);
harness.check(dest.getSample(1, 2, 1), 247);
harness.check(dest.getSample(2, 2, 1), 207);
harness.check(dest.getSample(3, 2, 1), 167);
harness.check(dest.getSample(4, 2, 1), 0);
harness.check(dest.getSample(0, 3, 1), 0);
harness.check(dest.getSample(1, 3, 1), 222);
harness.check(dest.getSample(2, 3, 1), 182);
harness.check(dest.getSample(3, 3, 1), 142);
harness.check(dest.getSample(4, 3, 1), 0);
harness.check(dest.getSample(0, 4, 1), 0);
harness.check(dest.getSample(1, 4, 1), 0);
harness.check(dest.getSample(2, 4, 1), 0);
harness.check(dest.getSample(3, 4, 1), 0);
harness.check(dest.getSample(4, 4, 1), 0);
harness.check(dest.getSample(0, 0, 2), 0);
harness.check(dest.getSample(1, 0, 2), 0);
harness.check(dest.getSample(2, 0, 2), 0);
harness.check(dest.getSample(3, 0, 2), 0);
harness.check(dest.getSample(4, 0, 2), 0);
harness.check(dest.getSample(0, 1, 2), 0);
harness.check(dest.getSample(1, 1, 2), 255);
harness.check(dest.getSample(2, 1, 2), 255);
harness.check(dest.getSample(3, 1, 2), 255);
harness.check(dest.getSample(4, 1, 2), 0);
harness.check(dest.getSample(0, 2, 2), 0);
harness.check(dest.getSample(1, 2, 2), 255);
harness.check(dest.getSample(2, 2, 2), 255);
harness.check(dest.getSample(3, 2, 2), 255);
harness.check(dest.getSample(4, 2, 2), 0);
harness.check(dest.getSample(0, 3, 2), 0);
harness.check(dest.getSample(1, 3, 2), 255);
harness.check(dest.getSample(2, 3, 2), 255);
harness.check(dest.getSample(3, 3, 2), 255);
harness.check(dest.getSample(4, 3, 2), 0);
harness.check(dest.getSample(0, 4, 2), 0);
harness.check(dest.getSample(1, 4, 2), 0);
harness.check(dest.getSample(2, 4, 2), 0);
harness.check(dest.getSample(3, 4, 2), 0);
harness.check(dest.getSample(4, 4, 2), 0);
harness.check(dest.getSample(0, 0, 3), 0);
harness.check(dest.getSample(1, 0, 3), 0);
harness.check(dest.getSample(2, 0, 3), 0);
harness.check(dest.getSample(3, 0, 3), 0);
harness.check(dest.getSample(4, 0, 3), 0);
harness.check(dest.getSample(0, 1, 3), 0);
harness.check(dest.getSample(1, 1, 3), 0);
harness.check(dest.getSample(2, 1, 3), 0);
harness.check(dest.getSample(3, 1, 3), 0);
harness.check(dest.getSample(4, 1, 3), 0);
harness.check(dest.getSample(0, 2, 3), 0);
harness.check(dest.getSample(1, 2, 3), 0);
harness.check(dest.getSample(2, 2, 3) - 39 >= 0 // allow rounding error
&& dest.getSample(2, 2, 3) - 39 <= 1);
harness.check(dest.getSample(3, 2, 3), 100);
harness.check(dest.getSample(4, 2, 3), 0);
harness.check(dest.getSample(0, 3, 3), 0);
harness.check(dest.getSample(1, 3, 3), 0);
harness.check(dest.getSample(2, 3, 3) - 119 >= 0 // allow rounding error
&& dest.getSample(2, 3, 3) - 119 <= 1);
harness.check(dest.getSample(3, 3, 3), 255);
harness.check(dest.getSample(4, 3, 3), 0);
harness.check(dest.getSample(0, 4, 3), 0);
harness.check(dest.getSample(1, 4, 3), 0);
harness.check(dest.getSample(2, 4, 3), 0);
harness.check(dest.getSample(3, 4, 3), 0);
harness.check(dest.getSample(4, 4, 3), 0);
}
}