/*

 * Copyright (c) 2007, 2008, 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.pipe.hw;

import java.awt.Rectangle;

import sun.java2d.Surface;

/**

 * Abstraction for a hardware accelerated surface.

 */

public interface AccelSurface extends BufferedContextProvider, Surface {

    /**

     * Undefined

     */

    public static final int UNDEFINED       = 0;

    /**

     * Window (or window substitute) surface

     */

    public static final int WINDOW          = 1;

    /**

     * Render-To Plain surface (pbuffer for OpenGL, Render Target surface

     * for Direct3D)

     */

    public static final int RT_PLAIN        = 2;

    /**

     * Texture surface

     */

    public static final int TEXTURE         = 3;

    /**

     * A back-buffer surface (SwapChain surface for Direct3D, backbuffer for

     * OpenGL)

     */

    public static final int FLIP_BACKBUFFER = 4;

    /**

     * Render-To Texture surface (fbobject for OpenGL, texture with render-to

     * attribute for Direct3D)

     */

    public static final int RT_TEXTURE      = 5;

    /**

     * Returns {@code int} representing surface's type as defined by constants

     * in this interface.

     *

     * @return an integer representing this surface's type

     * @see AccelSurface#UNDEFINED

     * @see AccelSurface#WINDOW

     * @see AccelSurface#RT_PLAIN

     * @see AccelSurface#TEXTURE

     * @see AccelSurface#FLIP_BACKBUFFER

     * @see AccelSurface#RT_TEXTURE

     */

    public int getType();

    /**

     * Returns a pointer to the native surface data associated with this

     * surface.

     * Note: this pointer is only valid on the rendering thread.

     *

     * @return pointer to the native surface's data

     */

    public long getNativeOps();

    /**

     * Returns a pointer to the real native resource

     * of the specified type associated with this AccelSurface.

     * Note: this pointer is only valid on the rendering thread.

     *

     * @param resType the type of the requested resource

     * @return a long containing a pointer to the native resource of the

     * specified type or 0L if such resource doesn't exist for this surface

     */

    public long getNativeResource(int resType);

    /**

     * Marks this surface dirty.

     */

    public void markDirty();

    /**

     * Returns whether the pipeline considers this surface valid. A surface

     * may become invalid if it is disposed of, or resized.

     *

     * @return true if valid, false otherwise

     */

    public boolean isValid();

    /**

     * Returns whether this surface is lost. The return value is only valid

     * on the render thread, meaning that even if this method returns

     * {@code true} it could be lost in the next moment unless it is called

     * on the rendering thread.

     *

     * @return true if the surface is known to be lost, false otherwise

     */

    public boolean isSurfaceLost();

    /**

     * Returns the requested bounds of the destination surface. The real bounds

     * of the native accelerated surface may differ. Use

     * {@link #getNativeBounds} to get the bounds of the native surface.

     *

     * @return Rectangle representing java surface's bounds

     */

    public Rectangle getBounds();

    /**

     * Returns real bounds of the native surface, which may differ from those

     * returned by {@link #getBounds}.

     *

     * @return Rectangle representing native surface's bounds

     */

    public Rectangle getNativeBounds();

}