1 /*
2 * Copyright (C) 2016 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_NDEBUG 0
18 #define LOG_TAG "ACameraCaptureSession"
19
20 #include "ACameraCaptureSession.h"
21
22 using namespace android;
23
~ACameraCaptureSession()24 ACameraCaptureSession::~ACameraCaptureSession() {
25 ALOGV("~ACameraCaptureSession: %p notify device end of life", this);
26 sp<acam::CameraDevice> dev = getDeviceSp();
27 if (dev != nullptr && !dev->isClosed()) {
28 dev->lockDeviceForSessionOps();
29 {
30 Mutex::Autolock _l(mSessionLock);
31 dev->notifySessionEndOfLifeLocked(this);
32 }
33 dev->unlockDevice();
34 }
35 // Fire onClosed callback
36 if (mUserSessionCallback.onClosed != nullptr) {
37 (*mUserSessionCallback.onClosed)(mUserSessionCallback.context, this);
38 }
39 ALOGV("~ACameraCaptureSession: %p is deleted", this);
40 }
41
42 void
closeByApp()43 ACameraCaptureSession::closeByApp() {
44 {
45 Mutex::Autolock _l(mSessionLock);
46 if (mClosedByApp) {
47 // Do not close twice
48 return;
49 }
50 mClosedByApp = true;
51 }
52
53 sp<acam::CameraDevice> dev = getDeviceSp();
54 if (dev != nullptr) {
55 dev->lockDeviceForSessionOps();
56 }
57
58 {
59 Mutex::Autolock _l(mSessionLock);
60
61 if (!mIsClosed && dev != nullptr) {
62 camera_status_t ret = dev->stopRepeatingLocked();
63 if (ret != ACAMERA_OK) {
64 ALOGE("Stop repeating request failed while closing session %p", this);
65 }
66 }
67 mIsClosed = true;
68 }
69
70 if (dev != nullptr) {
71 dev->unlockDevice();
72 }
73 this->decStrong((void*) ACameraDevice_createCaptureSession);
74 }
75
76 camera_status_t
stopRepeating()77 ACameraCaptureSession::stopRepeating() {
78 sp<acam::CameraDevice> dev = getDeviceSp();
79 if (dev == nullptr) {
80 ALOGE("Error: Device associated with session %p has been closed!", this);
81 return ACAMERA_ERROR_SESSION_CLOSED;
82 }
83
84 camera_status_t ret;
85 dev->lockDeviceForSessionOps();
86 {
87 Mutex::Autolock _l(mSessionLock);
88 ret = dev->stopRepeatingLocked();
89 }
90 dev->unlockDevice();
91 return ret;
92 }
93
94 camera_status_t
abortCaptures()95 ACameraCaptureSession::abortCaptures() {
96 sp<acam::CameraDevice> dev = getDeviceSp();
97 if (dev == nullptr) {
98 ALOGE("Error: Device associated with session %p has been closed!", this);
99 return ACAMERA_ERROR_SESSION_CLOSED;
100 }
101
102 camera_status_t ret;
103 dev->lockDeviceForSessionOps();
104 {
105 Mutex::Autolock _l(mSessionLock);
106 ret = dev->flushLocked(this);
107 }
108 dev->unlockDevice();
109 return ret;
110 }
111
updateOutputConfiguration(ACaptureSessionOutput * output)112 camera_status_t ACameraCaptureSession::updateOutputConfiguration(ACaptureSessionOutput *output) {
113 sp<acam::CameraDevice> dev = getDeviceSp();
114 if (dev == nullptr) {
115 ALOGE("Error: Device associated with session %p has been closed!", this);
116 return ACAMERA_ERROR_SESSION_CLOSED;
117 }
118
119 camera_status_t ret;
120 dev->lockDeviceForSessionOps();
121 {
122 Mutex::Autolock _l(mSessionLock);
123 ret = dev->updateOutputConfigurationLocked(output);
124 }
125 dev->unlockDevice();
126 return ret;
127 }
128
129 ACameraDevice*
getDevice()130 ACameraCaptureSession::getDevice() {
131 Mutex::Autolock _l(mSessionLock);
132 sp<acam::CameraDevice> dev = getDeviceSp();
133 if (dev == nullptr) {
134 ALOGE("Error: Device associated with session %p has been closed!", this);
135 return nullptr;
136 }
137 return dev->getWrapper();
138 }
139
140 void
closeByDevice()141 ACameraCaptureSession::closeByDevice() {
142 Mutex::Autolock _l(mSessionLock);
143 mIsClosed = true;
144 }
145
146 sp<acam::CameraDevice>
getDeviceSp()147 ACameraCaptureSession::getDeviceSp() {
148 sp<acam::CameraDevice> device = mDevice.promote();
149 if (device == nullptr || device->isClosed()) {
150 ALOGW("Device is closed but session %d is not notified", mId);
151 return nullptr;
152 }
153 return device;
154 }
155
156
157