SurfaceUtils.java revision a7677722304670dc07feef242156b97e6bb51bcd 
1/*
2 * Copyright 2015 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
17package android.hardware.camera2.utils;
18
19import android.hardware.camera2.legacy.LegacyCameraDevice;
20import android.hardware.camera2.legacy.LegacyExceptionUtils.BufferQueueAbandonedException;
21import android.util.Size;
22import android.view.Surface;
23
24/**
25 * Various Surface utilities.
26 */
27public class SurfaceUtils {
28
29    /**
30     * Check if a surface is for preview consumer.
31     *
32     * @param surface The surface to be checked.
33     * @return true if the surface is for preview consumer, false otherwise.
34     */
35    public static boolean isSurfaceForPreview(Surface surface) {
36        return LegacyCameraDevice.isPreviewConsumer(surface);
37    }
38
39    /**
40     * Check if the surface is for hardware video encoder consumer.
41     *
42     * @param surface The surface to be checked.
43     * @return true if the surface is for hardware video encoder consumer, false otherwise.
44     */
45    public static boolean isSurfaceForHwVideoEncoder(Surface surface) {
46        return LegacyCameraDevice.isVideoEncoderConsumer(surface);
47    }
48
49    /**
50     * Get the Surface size.
51     *
52     * @param surface The surface to be queried for size.
53     * @return Size of the surface.
54     *
55     * @throw IllegalArgumentException if the surface is already abandoned.
56     */
57    public static Size getSurfaceSize(Surface surface) {
58        try {
59            return LegacyCameraDevice.getSurfaceSize(surface);
60        } catch (BufferQueueAbandonedException e) {
61            throw new IllegalArgumentException("Surface was abandoned", e);
62        }
63    }
64
65    /**
66     * Get the Surface format.
67     *
68     * @param surface The surface to be queried for format.
69     * @return format of the surface.
70     *
71     * @throw IllegalArgumentException if the surface is already abandoned.
72     */
73    public static int getSurfaceFormat(Surface surface) {
74        try {
75            return LegacyCameraDevice.detectSurfaceType(surface);
76        } catch (BufferQueueAbandonedException e) {
77            throw new IllegalArgumentException("Surface was abandoned", e);
78        }
79    }
80}
81