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products/sources/formale Sprachen/Java/Openjdk/test/jdk/java/awt/color/ (Sun/Oracle ^©) Datei vom 13.11.2022 mit Größe 6 kB

Quelle ICC_ProfileRGBTest.java Sprache: JAVA

/*
* Copyright (c) 2020, 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.
*/

import java.awt.color.ColorSpace;
import java.awt.color.ICC_Profile;
import java.awt.color.ICC_ProfileRGB;
import java.awt.color.ProfileDataException;
import java.util.Arrays;

/**
* @test
* @bug 8254370
* @summary Tests basic ICC_ProfileRGB functionality
*/
public final class ICC_ProfileRGBTest {

    public static void main(String[] args) throws Exception {
        ICC_Profile csProfile = ICC_Profile.getInstance(ColorSpace.CS_sRGB);
        ICC_Profile dataProfile = ICC_Profile.getInstance(csProfile.getData());
        ICC_Profile string2Profile = ICC_Profile.getInstance("sRGB.pf");
        ICC_Profile string1Profile = ICC_Profile.getInstance("LINEAR_RGB.pf");
        test(csProfile);
        test(dataProfile);
        test(string1Profile);
        test(string2Profile);
    }

    private static void test(ICC_Profile profile) {
        // RGB profile should be implemented as ICC_ProfileRGB and includes the
        // redColorantTag, greenColorantTag, blueColorantTag, redTRCTag,
        // greenTRCTag, blueTRCTag, mediaWhitePointTag tags
        if (!(profile instanceof ICC_ProfileRGB)
                || profile.getData(ICC_Profile.icSigRedColorantTag) == null
                || profile.getData(ICC_Profile.icSigGreenColorantTag) == null
                || profile.getData(ICC_Profile.icSigBlueColorantTag) == null
                || profile.getData(ICC_Profile.icSigRedTRCTag) == null
                || profile.getData(ICC_Profile.icSigGreenTRCTag) == null
                || profile.getData(ICC_Profile.icSigBlueTRCTag) == null
                || profile.getData(ICC_Profile.icSigMediaWhitePointTag) == null)
        {
            throw new RuntimeException("Wrong profile: " + profile);
        }

        ICC_ProfileRGB rgb = (ICC_ProfileRGB) profile;

        int length = rgb.getMediaWhitePoint().length;
        if (length != 3) {
            throw new RuntimeException("Wrong data length: " + length);
        }

        // if getTRC() throws an exception then getGamma() should work
        boolean trc = false;
        try {
            rgb.getTRC(ICC_ProfileRGB.REDCOMPONENT);
            rgb.getTRC(ICC_ProfileRGB.GREENCOMPONENT);
            rgb.getTRC(ICC_ProfileRGB.BLUECOMPONENT);
            trc = true;
            System.out.println("getTRC() works fine");
        } catch (ProfileDataException ignore) {
            rgb.getGamma(ICC_ProfileRGB.REDCOMPONENT);
            rgb.getGamma(ICC_ProfileRGB.GREENCOMPONENT);
            rgb.getGamma(ICC_ProfileRGB.BLUECOMPONENT);
        }
        // if getGamma() throws an exception then getTRC() should work
        boolean gamma = false;
        try {
            rgb.getGamma(ICC_ProfileRGB.REDCOMPONENT);
            rgb.getGamma(ICC_ProfileRGB.GREENCOMPONENT);
            rgb.getGamma(ICC_ProfileRGB.BLUECOMPONENT);
            gamma = true;
            System.out.println("getGamma() works fine");
        } catch (ProfileDataException ignore) {
            rgb.getTRC(ICC_ProfileRGB.REDCOMPONENT);
            rgb.getTRC(ICC_ProfileRGB.GREENCOMPONENT);
            rgb.getTRC(ICC_ProfileRGB.BLUECOMPONENT);
        }

        if (gamma == trc) {
            // only one should work fine
            throw new RuntimeException("Only one operation should work");
        }

        // IllegalArgumentException if the component is invalid
        try {
            rgb.getGamma(10);
            throw new RuntimeException("IllegalArgumentException was expected");
        } catch (IllegalArgumentException ignored) {}
        try {
            rgb.getGamma(-1);
            throw new RuntimeException("IllegalArgumentException was expected");
        } catch (IllegalArgumentException ignored) {}
        try {
            rgb.getTRC(10);
            throw new RuntimeException("IllegalArgumentException was expected");
        } catch (IllegalArgumentException ignored) {}
        try {
            rgb.getTRC(-1);
            throw new RuntimeException("IllegalArgumentException was expected");
        } catch (IllegalArgumentException ignored) {}

        // Validates content of ICC_ProfileRGB.getMatrix()
        float[][] matrix = rgb.getMatrix(); // current implementation
        float[][] old = getMatrix(rgb); // old implementation
        if (!Arrays.deepEquals(matrix, old)) {
            System.err.println("Expected: " + Arrays.deepToString(old));
            System.err.println("Actual: " + Arrays.deepToString(matrix));
            throw new RuntimeException("Wrong matrix");
        }
    }

    /**
     * Old implementation of ICC_ProfileRGB.getMatrix().
     */
    private static float[][] getMatrix(ICC_ProfileRGB profile) {
        float[] tmpMatrix = getXYZTag(profile, ICC_Profile.icSigRedColorantTag);
        float[][] theMatrix = new float[3][3];
        theMatrix[0][0] = tmpMatrix[0];
        theMatrix[1][0] = tmpMatrix[1];
        theMatrix[2][0] = tmpMatrix[2];
        tmpMatrix = getXYZTag(profile, ICC_Profile.icSigGreenColorantTag);
        theMatrix[0][1] = tmpMatrix[0];
        theMatrix[1][1] = tmpMatrix[1];
        theMatrix[2][1] = tmpMatrix[2];
        tmpMatrix = getXYZTag(profile, ICC_Profile.icSigBlueColorantTag);
        theMatrix[0][2] = tmpMatrix[0];
        theMatrix[1][2] = tmpMatrix[1];
        theMatrix[2][2] = tmpMatrix[2];
        return theMatrix;
    }

    private static float[] getXYZTag(ICC_ProfileRGB profile, int theTagSignature) {
        byte[] theData = profile.getData(theTagSignature);
        float[] theXYZNumber = new float[3];
        for (int i1 = 0, i2 = profile.icXYZNumberX; i1 < 3; i1++, i2 += 4) {
            int theS15Fixed16 = intFromBigEndian(theData, i2);
            theXYZNumber [i1] = theS15Fixed16 / 65536.0f;
        }
        return theXYZNumber;
    }

    static int intFromBigEndian(byte[] array, int index) {
        return (((array[index]   & 0xff) << 24) |
                ((array[index+1] & 0xff) << 16) |
                ((array[index+2] & 0xff) <<  8) |
                (array[index+3] & 0xff));
    }
}

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