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      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 
     25 namespace android {
     26 
     27 namespace camera3 {
     28 
     29 Camera3DummyStream::Camera3DummyStream(int id) :
     30         Camera3IOStreamBase(id, CAMERA3_STREAM_OUTPUT, DUMMY_WIDTH, DUMMY_HEIGHT,
     31                 /*maxSize*/0, DUMMY_FORMAT) {
     32 
     33 }
     34 
     35 Camera3DummyStream::~Camera3DummyStream() {
     36 
     37 }
     38 
     39 status_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 
     45 status_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 
     53 status_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 
     64 void 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 
     73 status_t Camera3DummyStream::setTransform(int transform) {
     74     ATRACE_CALL();
     75     // Do nothing
     76     return OK;
     77 }
     78 
     79 status_t Camera3DummyStream::configureQueueLocked() {
     80     // Do nothing
     81     return OK;
     82 }
     83 
     84 status_t Camera3DummyStream::disconnectLocked() {
     85     mState = (mState == STATE_IN_RECONFIG) ? STATE_IN_CONFIG
     86                                            : STATE_CONSTRUCTED;
     87     return OK;
     88 }
     89 
     90 status_t Camera3DummyStream::getEndpointUsage(uint32_t *usage) {
     91     *usage = DUMMY_USAGE;
     92     return OK;
     93 }
     94 
     95 }; // namespace camera3
     96 
     97 }; // namespace android
     98