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6829659: Circle is rendered in C shape

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Reviewed-by: campbell, flar
This commit is contained in:
Hiroshi Yamauchi 2009-05-21 09:56:03 -07:00 committed by Jennifer Godinez
parent 47aba10d4e
commit f3d01961f8
2 changed files with 59 additions and 1 deletions
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2
jdk/src/share/classes/sun/java2d/pisces/PiscesCache.java
View File

@ -96,7 +96,7 @@ public final class PiscesCache {
bboxX1 = x1+1;
} else {
if (bboxX0 > x0) bboxX0 = x0;
if (bboxX1 < x1) bboxX1 = x1;
if (bboxX1 < x1 + 1) bboxX1 = x1 + 1;
while (bboxY1++ < y) {
reallocRowInfo(alphaRows+1);
minTouched[alphaRows] = 0;

58
jdk/test/sun/pisces/ScaleTest.java Normal file
View File

@ -0,0 +1,58 @@
/*
* Copyright 2009 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
import java.awt.*;
import java.awt.geom.Ellipse2D;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
public class ScaleTest {
public static void main(String[] args) throws Exception {
BufferedImage image = new BufferedImage(200, 200, BufferedImage.TYPE_INT_RGB);
Graphics2D g = image.createGraphics();
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g.setPaint(Color.WHITE);
g.fill(new Rectangle(image.getWidth(), image.getHeight()));
g.scale(.9, .9);
g.setPaint(Color.BLACK);
g.setStroke(new BasicStroke(0.5f));
g.draw(new Ellipse2D.Double(25, 25, 150, 150));
// To visually check it
//ImageIO.write(image, "PNG", new File(args[0]));
boolean nonWhitePixelFound = false;
for (int x = 100; x < 200; ++x) {
if (image.getRGB(x, 90) != Color.WHITE.getRGB()) {
nonWhitePixelFound = true;
break;
}
}
if (!nonWhitePixelFound) {
throw new RuntimeException("A circle is rendered like a 'C' shape.");
}
}
}