/*

 * Copyright (c) 2007, 2015, 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

 * questions.

 */

package sun.java2d.marlin;

import java.security.AccessController;

import static sun.java2d.marlin.MarlinUtils.logInfo;

import sun.security.action.GetPropertyAction;

public final class MarlinProperties {

    private MarlinProperties() {

        // no-op

    }

    // marlin system properties

    public static boolean isUseThreadLocal() {

        return getBoolean("sun.java2d.renderer.useThreadLocal", "true");

    }

    /**

     * Return the initial pixel size used to define initial arrays

     * (tile AA chunk, alpha line, buckets)

     *

     * @return 64 < initial pixel size < 32768 (2048 by default)

     */

    public static int getInitialImageSize() {

        return getInteger("sun.java2d.renderer.pixelsize", 2048, 64, 32 * 1024);

    }

    /**

     * Return the log(2) corresponding to subpixel on x-axis (

     *

     * @return 1 (2 subpixels) < initial pixel size < 4 (256 subpixels)

     * (3 by default ie 8 subpixels)

     */

    public static int getSubPixel_Log2_X() {

        return getInteger("sun.java2d.renderer.subPixel_log2_X", 3, 1, 8);

    }

    /**

     * Return the log(2) corresponding to subpixel on y-axis (

     *

     * @return 1 (2 subpixels) < initial pixel size < 8 (256 subpixels)

     * (3 by default ie 8 subpixels)

     */

    public static int getSubPixel_Log2_Y() {

        return getInteger("sun.java2d.renderer.subPixel_log2_Y", 3, 1, 8);

    }

    /**

     * Return the log(2) corresponding to the square tile size in pixels

     *

     * @return 3 (8x8 pixels) < tile size < 8 (256x256 pixels)

     * (5 by default ie 32x32 pixels)

     */

    public static int getTileSize_Log2() {

        return getInteger("sun.java2d.renderer.tileSize_log2", 5, 3, 8);

    }

    /**

     * Return the log(2) corresponding to the block size in pixels

     *

     * @return 3 (8 pixels) < block size < 8 (256 pixels)

     * (5 by default ie 32 pixels)

     */

    public static int getBlockSize_Log2() {

        return getInteger("sun.java2d.renderer.blockSize_log2", 5, 3, 8);

    }

    // RLE / blockFlags settings

    public static boolean isForceRLE() {

        return getBoolean("sun.java2d.renderer.forceRLE", "false");

    }

    public static boolean isForceNoRLE() {

        return getBoolean("sun.java2d.renderer.forceNoRLE", "false");

    }

    public static boolean isUseTileFlags() {

        return getBoolean("sun.java2d.renderer.useTileFlags", "true");

    }

    public static boolean isUseTileFlagsWithHeuristics() {

        return isUseTileFlags()

        && getBoolean("sun.java2d.renderer.useTileFlags.useHeuristics", "true");

    }

    public static int getRLEMinWidth() {

        return getInteger("sun.java2d.renderer.rleMinWidth", 64, 0, Integer.MAX_VALUE);

    }

    // optimisation parameters

    public static boolean isUseSimplifier() {

        return getBoolean("sun.java2d.renderer.useSimplifier", "false");

    }

    // debugging parameters

    public static boolean isDoStats() {

        return getBoolean("sun.java2d.renderer.doStats", "false");

    }

    public static boolean isDoMonitors() {

        return getBoolean("sun.java2d.renderer.doMonitors", "false");

    }

    public static boolean isDoChecks() {

        return getBoolean("sun.java2d.renderer.doChecks", "false");

    }

    // logging parameters

    public static boolean isUseLogger() {

        return getBoolean("sun.java2d.renderer.useLogger", "false");

    }

    public static boolean isLogCreateContext() {

        return getBoolean("sun.java2d.renderer.logCreateContext", "false");

    }

    public static boolean isLogUnsafeMalloc() {

        return getBoolean("sun.java2d.renderer.logUnsafeMalloc", "false");

    }

    // system property utilities

    static boolean getBoolean(final String key, final String def) {

        return Boolean.valueOf(AccessController.doPrivileged(

                  new GetPropertyAction(key, def)));

    }

    static int getInteger(final String key, final int def,

                                 final int min, final int max)

    {

        final String property = AccessController.doPrivileged(

                                    new GetPropertyAction(key));

        int value = def;

        if (property != null) {

            try {

                value = Integer.decode(property);

            } catch (NumberFormatException e) {

                logInfo("Invalid integer value for " + key + " = " + property);

            }

        }

        // check for invalid values

        if ((value < min) || (value > max)) {

            logInfo("Invalid value for " + key + " = " + value

                    + "; expected value in range[" + min + ", " + max + "] !");

            value = def;

        }

        return value;

    }

}