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Headless graphics driver for JavaFX

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/*
 * Copyright (c) 2013, 2014, 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 com.sun.glass.ui.monocle;

import java.nio.Buffer;
import java.nio.ByteBuffer;

public interface NativeScreen {

    public int getDepth();
    public int getNativeFormat();
    public int getWidth();
    public int getHeight();
    public int getDPI();
    public long getNativeHandle();
    public void shutdown();
    public void uploadPixels(Buffer b,
                             int x, int y, int width, int height, float alpha);

    public void swapBuffers();

    /**
     * Returns a read-only ByteBuffer in the native pixel format containing the screen contents.
     * @return ByteBuffer a read-only ByteBuffer containing the screen contents
     */
    public ByteBuffer getScreenCapture();

    /**
     * An Object to lock against when rendering
     */
    public static final Object framebufferSwapLock = new Object();

}