| /* |
| * Copyright (c) 2001, 2007, 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 4405224 |
| * @summary Test color conversion for images with alpha |
| */ |
| |
| import java.awt.Color; |
| import java.awt.Transparency; |
| import java.awt.Point; |
| import java.awt.image.BufferedImage; |
| import java.awt.image.ColorConvertOp; |
| import java.awt.image.ColorModel; |
| import java.awt.image.ComponentColorModel; |
| import java.awt.image.SampleModel; |
| import java.awt.image.Raster; |
| import java.awt.image.WritableRaster; |
| import java.awt.image.PixelInterleavedSampleModel; |
| import java.awt.image.DataBuffer; |
| import java.awt.color.ColorSpace; |
| |
| |
| public class ColCvtAlpha { |
| |
| public static void main(String args[]) { |
| BufferedImage src |
| = new BufferedImage(1, 10, BufferedImage.TYPE_INT_ARGB); |
| |
| // Set src pixel values |
| Color pelColor = new Color(100, 100, 100, 128); |
| for (int i = 0; i < 10; i++) { |
| src.setRGB(0, i, pelColor.getRGB()); |
| } |
| |
| ColorModel cm = new ComponentColorModel |
| (ColorSpace.getInstance(ColorSpace.CS_GRAY), |
| new int [] {8,8}, true, |
| src.getColorModel().isAlphaPremultiplied(), |
| Transparency.TRANSLUCENT, |
| DataBuffer.TYPE_BYTE); |
| |
| SampleModel sm = new PixelInterleavedSampleModel |
| (DataBuffer.TYPE_BYTE, 100, 100, 2, 200, |
| new int [] { 0, 1 }); |
| |
| WritableRaster wr = Raster.createWritableRaster(sm, new Point(0,0)); |
| |
| BufferedImage dst = |
| new BufferedImage(cm, wr, cm.isAlphaPremultiplied(), null); |
| dst = dst.getSubimage(0, 0, 1, 10); |
| |
| ColorConvertOp op = new ColorConvertOp(null); |
| |
| op.filter(src, dst); |
| |
| for (int i = 0; i < 10; i++) { |
| if (((dst.getRGB(0, i) >> 24) & 0xff) != 128) { |
| throw new RuntimeException( |
| "Incorrect destination alpha value."); |
| } |
| } |
| |
| } |
| } |