Camera3DummyStream.cpp revision 16a2ada049447c156648812b94d25be07869f284 
1/*
2 * Copyright (C) 2014 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 "Camera3-DummyStream"
18#define ATRACE_TAG ATRACE_TAG_CAMERA
19//#define LOG_NDEBUG 0
20
21#include <utils/Log.h>
22#include <utils/Trace.h>
23#include "Camera3DummyStream.h"
24
25namespace android {
26
27namespace camera3 {
28
29Camera3DummyStream::Camera3DummyStream(int id) :
30        Camera3IOStreamBase(id, CAMERA3_STREAM_OUTPUT, DUMMY_WIDTH, DUMMY_HEIGHT,
31                /*maxSize*/0, DUMMY_FORMAT) {
32
33}
34
35Camera3DummyStream::~Camera3DummyStream() {
36
37}
38
39status_t Camera3DummyStream::getBufferLocked(camera3_stream_buffer *buffer) {
40    ATRACE_CALL();
41    ALOGE("%s: Stream %d: Dummy stream cannot produce buffers!", mId);
42    return INVALID_OPERATION;
43}
44
45status_t Camera3DummyStream::returnBufferLocked(
46        const camera3_stream_buffer &buffer,
47        nsecs_t timestamp) {
48    ATRACE_CALL();
49    ALOGE("%s: Stream %d: Dummy stream cannot return buffers!", mId);
50    return INVALID_OPERATION;
51}
52
53status_t Camera3DummyStream::returnBufferCheckedLocked(
54            const camera3_stream_buffer &buffer,
55            nsecs_t timestamp,
56            bool output,
57            /*out*/
58            sp<Fence> *releaseFenceOut) {
59    ATRACE_CALL();
60    ALOGE("%s: Stream %d: Dummy stream cannot return buffers!", mId);
61    return INVALID_OPERATION;
62}
63
64void Camera3DummyStream::dump(int fd, const Vector<String16> &args) const {
65    (void) args;
66    String8 lines;
67    lines.appendFormat("    Stream[%d]: Dummy\n", mId);
68    write(fd, lines.string(), lines.size());
69
70    Camera3IOStreamBase::dump(fd, args);
71}
72
73status_t Camera3DummyStream::setTransform(int transform) {
74    ATRACE_CALL();
75    // Do nothing
76    return OK;
77}
78
79status_t Camera3DummyStream::configureQueueLocked() {
80    // Do nothing
81    return OK;
82}
83
84status_t Camera3DummyStream::disconnectLocked() {
85    mState = (mState == STATE_IN_RECONFIG) ? STATE_IN_CONFIG
86                                           : STATE_CONSTRUCTED;
87    return OK;
88}
89
90status_t Camera3DummyStream::getEndpointUsage(uint32_t *usage) {
91    *usage = DUMMY_USAGE;
92    return OK;
93}
94
95}; // namespace camera3
96
97}; // namespace android
98