1/*
2 * Copyright (C) 2010 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#ifndef ANDROID_GUI_VIEW_SURFACE_H
18#define ANDROID_GUI_VIEW_SURFACE_H
19
20#include <utils/Errors.h>
21#include <utils/StrongPointer.h>
22#include <utils/String16.h>
23
24#include <binder/Parcelable.h>
25
26namespace android {
27
28class IGraphicBufferProducer;
29
30namespace view {
31
32/**
33 * A simple holder for an IGraphicBufferProducer, to match the managed-side
34 * android.view.Surface parcelable behavior.
35 *
36 * This implements android/view/Surface.aidl
37 *
38 * TODO: Convert IGraphicBufferProducer into AIDL so that it can be directly
39 * used in managed Binder calls.
40 */
41class Surface : public Parcelable {
42  public:
43
44    String16 name;
45    sp<IGraphicBufferProducer> graphicBufferProducer;
46
47    virtual status_t writeToParcel(Parcel* parcel) const override;
48    virtual status_t readFromParcel(const Parcel* parcel) override;
49
50    // nameAlreadyWritten set to true by Surface.java, because it splits
51    // Parceling itself between managed and native code, so it only wants a part
52    // of the full parceling to happen on its native side.
53    status_t writeToParcel(Parcel* parcel, bool nameAlreadyWritten) const;
54
55    // nameAlreadyRead set to true by Surface.java, because it splits
56    // Parceling itself between managed and native code, so it only wants a part
57    // of the full parceling to happen on its native side.
58    status_t readFromParcel(const Parcel* parcel, bool nameAlreadyRead);
59
60  private:
61
62    static String16 readMaybeEmptyString16(const Parcel* parcel);
63};
64
65} // namespace view
66} // namespace android
67
68#endif  // ANDROID_GUI_VIEW_SURFACE_H
69