1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97
|
/*
* Copyright (c) 2021, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @key headful
* @bug 8266159
* @summary Test to detect regression in pixel drawing.
* A small circle is drawn and boundary pixels are compared to expected pixels.
* Note : this test is specifically written for uiScale=1.0
* @run main/othervm -Dsun.java2d.uiScale=1.0 DrawOvalTest
*/
import javax.imageio.ImageIO;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsEnvironment;
import java.awt.Transparency;
import java.awt.image.BufferedImage;
import java.awt.image.VolatileImage;
import java.io.File;
import java.io.IOException;
public class DrawOvalTest {
public static void main(String[] args) throws IOException {
GraphicsConfiguration gc = GraphicsEnvironment.getLocalGraphicsEnvironment()
.getDefaultScreenDevice().getDefaultConfiguration();
VolatileImage vi = gc.createCompatibleVolatileImage(10, 10, Transparency.TRANSLUCENT);
// Draw test rendering sequence
BufferedImage snapshot = null;
Graphics2D g2 = vi.createGraphics();
do {
vi.validate(gc);
render(g2);
snapshot = vi.getSnapshot();
} while (vi.contentsLost());
// Pixel color sequence expected after test rendering is complete
// Blue color = -16776961
// Red color = -65536
int sequence[] = {
-16776961,
-16776961,
-16776961,
-65536,
-65536,
-65536,
-65536,
-16776961,
-16776961,
-16776961
};
// Test the color of pixels at the image boundary
for (int i = 0; i < snapshot.getWidth(); i++) {
// Test first row, last row, first column and last column
if ( snapshot.getRGB(i, 0) != sequence[i] ||
snapshot.getRGB(i, 9) != sequence[i] ||
snapshot.getRGB(0, i) != sequence[i] ||
snapshot.getRGB(9, i) != sequence[i] ) {
ImageIO.write(snapshot, "png", new File("DrawOvalTest_snapshot.png"));
throw new RuntimeException("Test failed.");
}
}
}
private static void render(Graphics2D g2) {
g2.setColor(Color.BLUE);
g2.fillRect(0, 0, 10, 10);
g2.setColor(Color.RED);
g2.drawOval(0, 0, 9, 9);
}
}
|