Mercurial > hg > openjdk > jdk8 > jdk
changeset 8078:1bcd48cfb7be
8024895: xrender MaskImage cache isn't accounting for change in alpha
Reviewed-by: prr, jchen
author | ceisserer |
---|---|
date | Thu, 26 Sep 2013 16:30:38 -0700 |
parents | 529cd4de1823 |
children | dae020405903 8a041011b6e6 |
files | src/solaris/classes/sun/java2d/xr/XRMaskImage.java test/java/awt/image/DrawImage/EABlitTest.java |
diffstat | 2 files changed, 98 insertions(+), 1 deletions(-) [+] |
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--- a/src/solaris/classes/sun/java2d/xr/XRMaskImage.java Thu Sep 26 15:06:39 2013 -0700 +++ b/src/solaris/classes/sun/java2d/xr/XRMaskImage.java Thu Sep 26 16:30:38 2013 -0700 @@ -45,6 +45,7 @@ int blitMaskPicture; int lastMaskWidth = 0; int lastMaskHeight = 0; + int lastEA = -1; AffineTransform lastMaskTransform; XRCompositeManager xrMgr; @@ -82,13 +83,15 @@ lastMaskTransform = maskTX; } - if (lastMaskWidth != maskWidth || lastMaskHeight != maskHeight) { + int currentEA = xrMgr.getAlphaColor().getAlpha(); + if (lastMaskWidth != maskWidth || lastMaskHeight != maskHeight || lastEA != currentEA) { //Only clear mask, if previous mask area is larger than new one, otherwise simple overpaint it if (lastMaskWidth > maskWidth || lastMaskHeight > maskHeight) { con.renderRectangle(blitMaskPicture, XRUtils.PictOpClear, XRColor.NO_ALPHA, 0, 0, lastMaskWidth, lastMaskHeight); } con.renderRectangle(blitMaskPicture, XRUtils.PictOpSrc, xrMgr.getAlphaColor(), 0, 0, maskWidth, maskHeight); + lastEA = currentEA; } lastMaskWidth = maskWidth;
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/java/awt/image/DrawImage/EABlitTest.java Thu Sep 26 16:30:38 2013 -0700 @@ -0,0 +1,94 @@ +/* + * Copyright (c) 2013, 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. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * 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. + */ + +import java.awt.*; +import java.awt.image.*; +import java.util.*; +import javax.swing.*; + +/** + * @test + * @bug 8024895 + * @summary tests if changing extra alpha values are honored for transformed blits + * @author ceisserer + */ +public class EABlitTest extends Frame { + protected void test() { + BufferedImage srcImg = createSrcImage(); + Image dstImg = getGraphicsConfiguration().createCompatibleVolatileImage(20, 50); + + //be over-cautious and render twice to avoid BI caching issues + renderToVI(srcImg, dstImg); + renderToVI(srcImg, dstImg); + + BufferedImage validationImg = new BufferedImage(20, 50, BufferedImage.TYPE_INT_RGB); + Graphics2D valG = (Graphics2D) validationImg.getGraphics(); + valG.drawImage(dstImg, 0, 0, null); + + //Loop over all pixel, and count the different pixel values encountered. + TreeSet<Integer> colorCntSet = new TreeSet<>(); + for (int x=0; x < validationImg.getWidth(); x++) { + for (int y=0; y < validationImg.getHeight(); y++) { + int rgb = validationImg.getRGB(x, y); + colorCntSet.add(rgb); + } + } + + //Check if we encountered 3 different color values in total + if (colorCntSet.size() == 3) { + System.out.println("Passed!"); + } else { + throw new RuntimeException("Test FAILED!"); + } + } + + protected void renderToVI(BufferedImage src, Image dst) { + Graphics2D g = (Graphics2D) dst.getGraphics(); + + g.setColor(Color.WHITE); + g.fillRect(0, 0, 50, 50); + g.rotate(0.5f); + g.setRenderingHint(RenderingHints.KEY_RENDERING, + RenderingHints.VALUE_RENDER_QUALITY); + + g.setComposite(AlphaComposite.SrcOver.derive(1f)); + g.drawImage(src, 10, 10, null); + + g.setComposite(AlphaComposite.SrcOver.derive(0.5f)); + g.drawImage(src, 20, 20, null); + } + + protected BufferedImage createSrcImage() { + BufferedImage bi = new BufferedImage(10, 10, BufferedImage.TYPE_INT_RGB); + Graphics2D g = (Graphics2D) bi.getGraphics(); + g.setColor(Color.YELLOW); + g.fillRect(0, 0, 10, 10); + return bi; + } + + public static void main(String[] args) { + new EABlitTest().test(); + } +}