90 lines
3.5 KiB
Java
90 lines
3.5 KiB
Java
/*
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* Copyright Amazon.com Inc. 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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import java.awt.AlphaComposite;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import java.util.Arrays;
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import static java.awt.image.BufferedImage.TYPE_3BYTE_BGR;
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import static java.awt.image.BufferedImage.TYPE_4BYTE_ABGR;
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import static java.awt.image.BufferedImage.TYPE_4BYTE_ABGR_PRE;
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import static java.awt.image.BufferedImage.TYPE_INT_ARGB;
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import static java.awt.image.BufferedImage.TYPE_INT_ARGB_PRE;
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import static java.awt.image.BufferedImage.TYPE_INT_BGR;
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import static java.awt.image.BufferedImage.TYPE_INT_RGB;
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/**
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* @test
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* @bug 8297681
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* @summary The blit TYPE_4BYTE_ABGR_PRE to TYPE_INT_ARGB_PRE should be "direct"
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*/
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public final class SkipConversionIfPossible {
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private static final int SIZE = 256;
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public static void main(String[] args) {
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// Initial bug was in the TYPE_4BYTE_ABGR_PRE to TYPE_INT_ARGB_PRE blit.
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// But I checked other blits just in case.
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test(new int[]{TYPE_INT_ARGB_PRE, TYPE_4BYTE_ABGR_PRE});
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test(new int[]{TYPE_INT_RGB, TYPE_INT_BGR, TYPE_3BYTE_BGR});
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test(new int[]{TYPE_INT_ARGB, TYPE_4BYTE_ABGR});
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}
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private static void test(int[] types) {
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for (int src : types) {
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for (int dst : types) {
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render(src, dst);
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}
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}
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}
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private static void render(int src, int dst) {
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BufferedImage from = new BufferedImage(SIZE, SIZE, src);
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for (int a = 0; a < SIZE; ++a) {
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for (int c = 0; c < SIZE; ++c) {
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// The data is intentionally broken for the argb_pre format, but
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// it should be stored as is in dst if no conversion was done.
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from.getRaster().setPixel(c, a, new int[]{c, c << 24, -c, a});
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}
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}
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BufferedImage to = new BufferedImage(SIZE, SIZE, dst);
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Graphics2D g = to.createGraphics();
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g.setComposite(AlphaComposite.Src);
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g.drawImage(from, 0, 0, null);
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g.dispose();
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for (int a = 0; a < SIZE; ++a) {
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for (int c = 0; c < SIZE; ++c) {
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int[] pixel1 = from.getRaster().getPixel(c, a, (int[]) null);
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int[] pixel2 = to.getRaster().getPixel(c, a, (int[]) null);
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if (!Arrays.equals(pixel1, pixel2)) {
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System.err.println(Arrays.toString(pixel1));
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System.err.println(Arrays.toString(pixel2));
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throw new RuntimeException();
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}
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}
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}
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}
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}
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