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 #define LOG_TAG "Surface"
18
19 #include <gui/view/Surface.h>
20
21 #include <binder/Parcel.h>
22
23 #include <utils/Log.h>
24
25 #include <gui/IGraphicBufferProducer.h>
26
27 namespace android {
28 namespace view {
29
writeToParcel(Parcel * parcel) const30 status_t Surface::writeToParcel(Parcel* parcel) const {
31 return writeToParcel(parcel, false);
32 }
33
writeToParcel(Parcel * parcel,bool nameAlreadyWritten) const34 status_t Surface::writeToParcel(Parcel* parcel, bool nameAlreadyWritten) const {
35 if (parcel == nullptr) return BAD_VALUE;
36
37 status_t res = OK;
38
39 if (!nameAlreadyWritten) {
40 res = parcel->writeString16(name);
41 if (res != OK) return res;
42
43 /* isSingleBuffered defaults to no */
44 res = parcel->writeInt32(0);
45 if (res != OK) return res;
46 }
47
48 return IGraphicBufferProducer::exportToParcel(graphicBufferProducer, parcel);
49 }
50
readFromParcel(const Parcel * parcel)51 status_t Surface::readFromParcel(const Parcel* parcel) {
52 return readFromParcel(parcel, false);
53 }
54
readFromParcel(const Parcel * parcel,bool nameAlreadyRead)55 status_t Surface::readFromParcel(const Parcel* parcel, bool nameAlreadyRead) {
56 if (parcel == nullptr) return BAD_VALUE;
57
58 status_t res = OK;
59 if (!nameAlreadyRead) {
60 name = readMaybeEmptyString16(parcel);
61 // Discard this for now
62 int isSingleBuffered;
63 res = parcel->readInt32(&isSingleBuffered);
64 if (res != OK) {
65 ALOGE("Can't read isSingleBuffered");
66 return res;
67 }
68 }
69
70 graphicBufferProducer = IGraphicBufferProducer::createFromParcel(parcel);
71 return OK;
72 }
73
readMaybeEmptyString16(const Parcel * parcel)74 String16 Surface::readMaybeEmptyString16(const Parcel* parcel) {
75 size_t len;
76 const char16_t* str = parcel->readString16Inplace(&len);
77 if (str != nullptr) {
78 return String16(str, len);
79 } else {
80 return String16();
81 }
82 }
83
84 } // namespace view
85 } // namespace android
86