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