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/*
* Copyright (c) 1999, 2021, 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_ColorSpace;
import java.awt.color.ICC_Profile;
import java.awt.color.ICC_ProfileRGB;
/**
* @test
* @bug 4267139
* @summary This test verifies that an sRGB color can be accurately converted to
* an CIE colorimetric XYZ value.
*/
public final class XYZTest {
public static void main(String[] args) {
float[] rgb = new float[3];
rgb[0] = 1.0F;
rgb[1] = 1.0F;
rgb[2] = 1.0F;
ICC_ProfileRGB pf =
(ICC_ProfileRGB) ICC_Profile.getInstance(ColorSpace.CS_sRGB);
ICC_ColorSpace srgb = new ICC_ColorSpace(pf);
float[] xyz = srgb.toCIEXYZ(rgb);
float mxyz[] = new float[3];
// adjust D50 relative values by a factor which is the ratio
// of the device white point (in this case sRGB) divided by
// the D50 (PCS) white point
mxyz[0] = xyz[0] * (0.9505f / 0.9642f);
mxyz[1] = xyz[1] * (1.0000f / 1.0000f);
mxyz[2] = xyz[2] * (1.0891f / 0.8249f);
if ((Math.abs(mxyz[0] - 0.9505f) > 0.01f) ||
(Math.abs(mxyz[1] - 1.0000f) > 0.01f) ||
(Math.abs(mxyz[2] - 1.0891f) > 0.01f)) {
throw new Error("sRGB (1.0, 1.0, 1.0) doesn't convert " +
"correctly to CIEXYZ");
}
}
}
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