1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17
18package android.filterfw.core;
19
20import android.filterfw.core.Frame;
21import android.filterfw.core.FrameFormat;
22import android.filterfw.core.MutableFrameFormat;
23
24/**
25 * @hide
26 */
27public abstract class FrameManager {
28
29    private FilterContext mContext;
30
31    public abstract Frame newFrame(FrameFormat format);
32
33    public abstract Frame newBoundFrame(FrameFormat format, int bindingType, long bindingId);
34
35    public Frame duplicateFrame(Frame frame) {
36        Frame result = newFrame(frame.getFormat());
37        result.setDataFromFrame(frame);
38        return result;
39    }
40
41    public Frame duplicateFrameToTarget(Frame frame, int newTarget) {
42        MutableFrameFormat newFormat = frame.getFormat().mutableCopy();
43        newFormat.setTarget(newTarget);
44        Frame result = newFrame(newFormat);
45        result.setDataFromFrame(frame);
46        return result;
47    }
48
49    public abstract Frame retainFrame(Frame frame);
50
51    public abstract Frame releaseFrame(Frame frame);
52
53    public FilterContext getContext() {
54        return mContext;
55    }
56
57    public GLEnvironment getGLEnvironment() {
58        return mContext != null ? mContext.getGLEnvironment() : null;
59    }
60
61    public void tearDown() {
62    }
63
64    void setContext(FilterContext context) {
65        mContext = context;
66    }
67}
68