/*

 * Copyright (c) 2013, 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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

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 */

package sun.java2d.cmm.lcms;

import java.awt.color.CMMException;

import java.util.Arrays;

import java.util.HashMap;

import sun.java2d.cmm.Profile;

final class LCMSProfile extends Profile {

    private final TagCache tagCache;

    private final Object disposerReferent;

    LCMSProfile(long ptr, Object ref) {

        super(ptr);

        disposerReferent = ref;

        tagCache = new TagCache(this);

    }

    final long getLcmsPtr() {

        return this.getNativePtr();

    }

    TagData getTag(int sig) {

        return tagCache.getTag(sig);

    }

    void clearTagCache() {

        tagCache.clear();

    }

    static class TagCache  {

        final LCMSProfile profile;

        private HashMap<Integer, TagData> tags;

        TagCache(LCMSProfile p) {

            profile = p;

            tags = new HashMap<>();

        }

        TagData getTag(int sig) {

            TagData t = tags.get(sig);

            if (t == null) {

                byte[] tagData = LCMS.getTagNative(profile.getNativePtr(), sig);

                if (tagData != null) {

                    t = new TagData(sig, tagData);

                    tags.put(sig, t);

                }

            }

            return t;

        }

        void clear() {

            tags.clear();

        }

    }

    static class TagData {

        private int signature;

        private byte[] data;

        TagData(int sig, byte[] data) {

            this.signature = sig;

            this.data = data;

        }

        int getSize() {

            return data.length;

        }

        byte[] getData() {

            return Arrays.copyOf(data, data.length);

        }

        void copyDataTo(byte[] dst) {

            System.arraycopy(data, 0, dst, 0, data.length);

        }

        int getSignature() {

            return signature;

        }

    }

}