engineering/java-topology
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

undefect. CWE-407 — 63 sites patched across 27 ecosystems

Browse source 
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
This commit is contained in:
russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

83
test/jdk/java/awt/image/DrawImage/ByteIndexedDitherTest.java Normal file
View file

@ -0,0 +1,83 @@
/*
* Copyright (c) 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 8280964
* @summary Tests that drawing to a ByteIndexed image dithers correctly.
*/
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
public class ByteIndexedDitherTest {
public static void main(String[] args) {
BufferedImage bgr = createBGRImage();
BufferedImage indexed = createIndexedImage(bgr);
checkImage(indexed);
}
static BufferedImage createBGRImage() {
int sz = 8;
BufferedImage img;
img = new BufferedImage(sz, sz, BufferedImage.TYPE_3BYTE_BGR);
Graphics2D g = img.createGraphics();
Color c = new Color(0, 0, 254);
g.setColor(c);
g.fillRect(0, 0, sz, sz);
g.dispose();
return img;
}
static BufferedImage createIndexedImage(BufferedImage srcImage) {
int w = srcImage.getWidth(null);
int h = srcImage.getHeight(null);
BufferedImage
indexedImg = new BufferedImage(w, h, BufferedImage.TYPE_BYTE_INDEXED);
Graphics2D g = indexedImg.createGraphics();
g.drawImage(srcImage, 0, 0, w, h, null);
g.dispose();
return indexedImg;
}
static void checkImage(BufferedImage image) {
int wid = image.getWidth();
int hgt = image.getHeight();
for (int y=0; y<hgt; y++) {
for (int x=0; x<wid; x++) {
int v = image.getRGB(x, y);
if ((v & 0x00ffff00) != 0) {
System.err.println("("+x+","+y+") = " +
Integer.toHexString(v));
throw new RuntimeException("Unexpected Red or Green");
}
}
}
}
}