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mrserbmrserb
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8255722: Create a new test for rotated blit
Reviewed-by: prr
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‎test/jdk/ProblemList.txt

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@@ -254,6 +254,7 @@ java/awt/image/DrawImage/IncorrectAlphaSurface2SW.java 8056077 generic-all
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java/awt/image/DrawImage/IncorrectClipXorModeSW2Surface.java 8196025 windows-all
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java/awt/image/DrawImage/IncorrectClipXorModeSurface2Surface.java 8196025 windows-all
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java/awt/image/DrawImage/IncorrectSourceOffset.java 8196086 windows-all
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java/awt/image/DrawImage/BlitRotateClippedArea.java 8255724 linux-all
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java/awt/image/MultiResolutionImage/MultiResolutionDrawImageWithTransformTest.java 8198390 generic-all
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java/awt/image/multiresolution/MultiresolutionIconTest.java 8169187 macosx-all,windows-all
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java/awt/print/Headless/HeadlessPrinterJob.java 8196088 windows-all

‎test/jdk/java/awt/image/DrawImage/BlitRotateClippedArea.java

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/*
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* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.awt.AlphaComposite;
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import java.awt.Color;
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import java.awt.Graphics2D;
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import java.awt.GraphicsEnvironment;
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import java.awt.Image;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.IOException;
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import javax.imageio.ImageIO;
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import static java.awt.Transparency.TRANSLUCENT;
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/**
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* @test
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* @bug 8255722
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* @key headful
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*/
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public class BlitRotateClippedArea {
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/**
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* The test use case:
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* 1. The destination image is created of size 1000x1000
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* 2. The source image is created of size 2000x2000
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* 3. The source image is painted by the pattern outsize of 1000x1000
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* 4. If the source image is painted as-is to the destination then the
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* pattern in the source will be ignored, but the test sets some
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* specific rotation that the pattern will hit the source.
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* Note that rotation is used not a scale/translate.
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*/
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public static void main(String[] args) throws Exception {
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// the test check the exact pixels location
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System.setProperty("sun.java2d.uiScale", "1");
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var ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
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var gc = ge.getDefaultScreenDevice().getDefaultConfiguration();
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var gold = gc.createCompatibleImage(1000, 1000, TRANSLUCENT);
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var dstVI2BI = gc.createCompatibleImage(1000, 1000, TRANSLUCENT);
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var dstVI2VI = gc.createCompatibleVolatileImage(1000, 1000, TRANSLUCENT);
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var dstBI2VI = gc.createCompatibleVolatileImage(1000, 1000, TRANSLUCENT);
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var srcBI = gc.createCompatibleImage(2000, 2000, TRANSLUCENT);
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var srcVI = gc.createCompatibleVolatileImage(2000, 2000, TRANSLUCENT);
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int attempt = 0;
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BufferedImage snapshotVI2VI;
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BufferedImage snapshotBI2VI;
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do {
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if (++attempt > 10) {
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throw new RuntimeException("Too many attempts: " + attempt);
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}
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dstVI2VI.validate(gc);
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dstBI2VI.validate(gc);
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srcVI.validate(gc);
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fill(srcBI);
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fill(srcVI);
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init(gold);
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init(dstVI2BI);
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init(dstVI2VI);
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init(dstBI2VI);
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draw(gold, srcBI);
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draw(dstVI2BI, srcVI);
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draw(dstVI2VI, srcVI);
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draw(dstBI2VI, srcBI);
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snapshotVI2VI = dstVI2VI.getSnapshot();
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snapshotBI2VI = dstBI2VI.getSnapshot();
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} while (dstVI2VI.contentsLost() || dstBI2VI.contentsLost()
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|| srcVI.contentsLost());
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validate(gold, snapshotVI2VI);
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validate(gold, snapshotBI2VI);
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validate(gold, dstVI2BI);
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}
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private static void validate(BufferedImage gold, BufferedImage img)
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throws IOException {
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for (int x = 0; x < gold.getWidth(); ++x) {
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for (int y = 0; y < gold.getHeight(); ++y) {
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if (gold.getRGB(x, y) != img.getRGB(x, y)) {
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ImageIO.write(gold, "png", new File("gold.png"));
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ImageIO.write(img, "png", new File("snapshot.png"));
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throw new RuntimeException("Test failed.");
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}
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}
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}
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}
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private static void draw(Image dstBI, Image src) {
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Graphics2D g = (Graphics2D) dstBI.getGraphics();
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g.rotate(Math.toRadians(180), 1250, 1150);
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g.drawImage(src, 0, 0, null);
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g.dispose();
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}
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private static void init(Image image) {
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Graphics2D graphics = (Graphics2D) image.getGraphics();
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graphics.setComposite(AlphaComposite.Src);
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graphics.setColor(Color.YELLOW);
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graphics.fillRect(0, 0, image.getWidth(null), image.getHeight(null));
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graphics.dispose();
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}
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private static void fill(Image image) {
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Graphics2D graphics = (Graphics2D) image.getGraphics();
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graphics.setComposite(AlphaComposite.Src);
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for (int x = 1000; x < image.getWidth(null); ++x) {
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for (int y = 1000; y < image.getHeight(null); ++y) {
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graphics.setColor(new Color(x % 256, 0, y % 256, 125));
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graphics.fillRect(x, y, 1, 1);
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}
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}
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graphics.dispose();
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}
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}
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