/* * Copyright (c) 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 6557713 * @summary Test verifies that PNG image writer correctly handles indexed images with * various types of transparency. * * Test for 4bpp OPAQUE image * @run main GrayPngTest 4 1 3 * * Test for 4bpp BITMASK image with transparent pixel 3 * @run main GrayPngTest 4 2 3 * * Test for 4bpp TRANSLUCENT image * @run main GrayPngTest 4 3 3 * * Test for 8bpp OPAQUE image * @run main GrayPngTest 8 1 127 * * Test for 8bpp BITMASK image with transparent pixel 127 * @run main GrayPngTest 8 2 127 * * Test for 8bpp TRANSLUCENT image * @run main GrayPngTest 8 3 127 *
*/
privatevoid checkImages() { for (int i = 0; i < numColors; i++) { int src_rgb = src.getRGB(i * dx, 5); int dst_rgb = dst.getRGB(i * dx, 5);
// here we check transparency only due to possible colors space // differences (sRGB in indexed source and Gray in gray+alpha destination) if ((0xff000000 & src_rgb) != (0xff000000 & dst_rgb)) { thrownew RuntimeException("Test FAILED. Color difference detected: " +
Integer.toHexString(dst_rgb) + " instead of " +
Integer.toHexString(src_rgb) + " for index " + i);
}
}
}
}
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