88 lines
3.1 KiB
Java
88 lines
3.1 KiB
Java
/*
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* Copyright (c) 2010, 2022, 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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/**
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* @test
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* @bug 6996867 8223543
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* @requires (os.family == "windows")
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* @summary Render as LCD Text in SrcEa composite mode.
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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.RenderingHints;
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import java.awt.image.BufferedImage;
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public class LCDTextSrcEa {
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public static void main(String[] args) {
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String os = System.getProperty("os.name");
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if (os.toLowerCase().startsWith("mac")) {
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System.out.println("macOS doesn't support LCD any more. Skipping");
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return;
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}
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/* Sometimes freetype on Linux is built without LCD support, so
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* it can't be relied upon to test there.
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*/
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if (os.toLowerCase().startsWith("linux")) {
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System.out.println("Linux freetype may not do LCD. Skipping");
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return;
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}
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int SZ=200;
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BufferedImage target =
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new BufferedImage(SZ, SZ, BufferedImage.TYPE_INT_RGB);
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Graphics2D g2d = (Graphics2D) target.getGraphics();
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g2d.setColor(Color.white);
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g2d.fillRect(0, 0, SZ, SZ);
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g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC, 0.01f));
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g2d.setRenderingHint(
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RenderingHints.KEY_TEXT_ANTIALIASING,
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RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_VBGR);
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g2d.setRenderingHint(
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RenderingHints.KEY_ANTIALIASING,
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RenderingHints.VALUE_ANTIALIAS_ON);
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g2d.setColor(Color.black);
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g2d.drawString("Some sample text.", 10, 20);
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boolean nongrey = false;
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//Test BI: should be some non-greyscale color
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for (int px=0;px<SZ;px++) {
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for (int py=0;py<SZ;py++) {
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int rgb = target.getRGB(px, py);
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int r = (rgb & 0xff0000) >> 16;
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int g = (rgb & 0x00ff00) >> 8;
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int b = (rgb & 0x0000ff);
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if (r != g || r !=b || g != b) {
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nongrey=true;
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break;
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}
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}
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}
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if (!nongrey) {
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throw new RuntimeException("No LCD text found");
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}
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}
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}
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