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1   /*
2    * Copyright (c) 1997, 2007, Oracle and/or its affiliates. All rights reserved.
3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4    *
5    * This code is free software; you can redistribute it and/or modify it
6    * under the terms of the GNU General Public License version 2 only, as
7    * published by the Free Software Foundation.  Oracle designates this
8    * particular file as subject to the "Classpath" exception as provided
9    * by Oracle in the LICENSE file that accompanied this code.
10   *
11   * This code is distributed in the hope that it will be useful, but WITHOUT
12   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14   * version 2 for more details (a copy is included in the LICENSE file that
15   * accompanied this code).
16   *
17   * You should have received a copy of the GNU General Public License version
18   * 2 along with this work; if not, write to the Free Software Foundation,
19   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20   *
21   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22   * or visit www.oracle.com if you need additional information or have any
23   * questions.
24   */
25  
26  package sun.java2d.pipe;
27  
28  import java.awt.Rectangle;
29  import java.awt.Shape;
30  import sun.java2d.SunGraphics2D;
31  
32  /**
33   * This interface defines the set of calls used by a rendering pipeline
34   * based on an AATileGenerator to communicate the alpha tile sequence
35   * to the output (compositing) stages of the pipeline.
36   */
37  public interface CompositePipe {
38      public Object startSequence(SunGraphics2D sg, Shape s, Rectangle dev,
39                                  int[] abox);
40  
41      public boolean needTile(Object context, int x, int y, int w, int h);
42  
43      public void renderPathTile(Object context,
44                                 byte[] atile, int offset, int tilesize,
45                                 int x, int y, int w, int h);
46  
47      public void skipTile(Object context, int x, int y);
48  
49      public void endSequence(Object context);
50  }