801 lines
30 KiB
C++
801 lines
30 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//#define LOG_NDEBUG 0
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#define LOG_TAG "ACameraManager"
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#include <memory>
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#include "ACameraManager.h"
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#include "ACameraMetadata.h"
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#include "ACameraDevice.h"
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#include <utils/Vector.h>
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#include <cutils/properties.h>
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#include <stdlib.h>
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#include <camera/CameraUtils.h>
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#include <camera/VendorTagDescriptor.h>
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using namespace android::acam;
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namespace android {
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namespace acam {
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// Static member definitions
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const char* CameraManagerGlobal::kCameraIdKey = "CameraId";
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const char* CameraManagerGlobal::kPhysicalCameraIdKey = "PhysicalCameraId";
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const char* CameraManagerGlobal::kCallbackFpKey = "CallbackFp";
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const char* CameraManagerGlobal::kContextKey = "CallbackContext";
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const nsecs_t CameraManagerGlobal::kCallbackDrainTimeout = 5000000; // 5 ms
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Mutex CameraManagerGlobal::sLock;
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CameraManagerGlobal* CameraManagerGlobal::sInstance = nullptr;
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CameraManagerGlobal&
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CameraManagerGlobal::getInstance() {
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Mutex::Autolock _l(sLock);
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CameraManagerGlobal* instance = sInstance;
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if (instance == nullptr) {
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instance = new CameraManagerGlobal();
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sInstance = instance;
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}
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return *instance;
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}
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CameraManagerGlobal::~CameraManagerGlobal() {
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// clear sInstance so next getInstance call knows to create a new one
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Mutex::Autolock _sl(sLock);
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sInstance = nullptr;
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Mutex::Autolock _l(mLock);
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if (mCameraService != nullptr) {
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IInterface::asBinder(mCameraService)->unlinkToDeath(mDeathNotifier);
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mCameraService->removeListener(mCameraServiceListener);
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}
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mDeathNotifier.clear();
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if (mCbLooper != nullptr) {
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mCbLooper->unregisterHandler(mHandler->id());
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mCbLooper->stop();
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}
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mCbLooper.clear();
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mHandler.clear();
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mCameraServiceListener.clear();
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mCameraService.clear();
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}
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sp<hardware::ICameraService> CameraManagerGlobal::getCameraService() {
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Mutex::Autolock _l(mLock);
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return getCameraServiceLocked();
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}
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sp<hardware::ICameraService> CameraManagerGlobal::getCameraServiceLocked() {
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if (mCameraService.get() == nullptr) {
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if (CameraUtils::isCameraServiceDisabled()) {
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return mCameraService;
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}
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sp<IServiceManager> sm = defaultServiceManager();
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sp<IBinder> binder;
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do {
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binder = sm->getService(String16(kCameraServiceName));
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if (binder != nullptr) {
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break;
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}
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ALOGW("CameraService not published, waiting...");
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usleep(kCameraServicePollDelay);
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} while(true);
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if (mDeathNotifier == nullptr) {
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mDeathNotifier = new DeathNotifier(this);
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}
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binder->linkToDeath(mDeathNotifier);
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mCameraService = interface_cast<hardware::ICameraService>(binder);
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// Setup looper thread to perfrom availiability callbacks
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if (mCbLooper == nullptr) {
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mCbLooper = new ALooper;
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mCbLooper->setName("C2N-mgr-looper");
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status_t err = mCbLooper->start(
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/*runOnCallingThread*/false,
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/*canCallJava*/ true,
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PRIORITY_DEFAULT);
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if (err != OK) {
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ALOGE("%s: Unable to start camera service listener looper: %s (%d)",
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__FUNCTION__, strerror(-err), err);
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mCbLooper.clear();
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return nullptr;
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}
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if (mHandler == nullptr) {
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mHandler = new CallbackHandler(this);
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}
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mCbLooper->registerHandler(mHandler);
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}
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// register ICameraServiceListener
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if (mCameraServiceListener == nullptr) {
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mCameraServiceListener = new CameraServiceListener(this);
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}
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std::vector<hardware::CameraStatus> cameraStatuses{};
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mCameraService->addListener(mCameraServiceListener, &cameraStatuses);
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for (auto& c : cameraStatuses) {
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onStatusChangedLocked(c.status, c.cameraId);
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for (auto& unavailablePhysicalId : c.unavailablePhysicalIds) {
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onStatusChangedLocked(hardware::ICameraServiceListener::STATUS_NOT_PRESENT,
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c.cameraId, unavailablePhysicalId);
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}
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}
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// setup vendor tags
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sp<VendorTagDescriptor> desc = new VendorTagDescriptor();
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binder::Status ret = mCameraService->getCameraVendorTagDescriptor(/*out*/desc.get());
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if (ret.isOk()) {
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if (0 < desc->getTagCount()) {
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status_t err = VendorTagDescriptor::setAsGlobalVendorTagDescriptor(desc);
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if (err != OK) {
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ALOGE("%s: Failed to set vendor tag descriptors, received error %s (%d)",
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__FUNCTION__, strerror(-err), err);
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}
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} else {
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sp<VendorTagDescriptorCache> cache =
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new VendorTagDescriptorCache();
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binder::Status res =
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mCameraService->getCameraVendorTagCache(
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/*out*/cache.get());
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if (res.serviceSpecificErrorCode() ==
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hardware::ICameraService::ERROR_DISCONNECTED) {
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// No camera module available, not an error on devices with no cameras
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VendorTagDescriptorCache::clearGlobalVendorTagCache();
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} else if (res.isOk()) {
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status_t err =
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VendorTagDescriptorCache::setAsGlobalVendorTagCache(
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cache);
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if (err != OK) {
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ALOGE("%s: Failed to set vendor tag cache,"
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"received error %s (%d)", __FUNCTION__,
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strerror(-err), err);
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}
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} else {
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VendorTagDescriptorCache::clearGlobalVendorTagCache();
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ALOGE("%s: Failed to setup vendor tag cache: %s",
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__FUNCTION__, res.toString8().string());
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}
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}
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} else if (ret.serviceSpecificErrorCode() ==
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hardware::ICameraService::ERROR_DEPRECATED_HAL) {
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ALOGW("%s: Camera HAL too old; does not support vendor tags",
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__FUNCTION__);
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VendorTagDescriptor::clearGlobalVendorTagDescriptor();
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} else {
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ALOGE("%s: Failed to get vendor tag descriptors: %s",
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__FUNCTION__, ret.toString8().string());
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}
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}
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ALOGE_IF(mCameraService == nullptr, "no CameraService!?");
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return mCameraService;
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}
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void CameraManagerGlobal::DeathNotifier::binderDied(const wp<IBinder>&)
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{
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ALOGE("Camera service binderDied!");
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sp<CameraManagerGlobal> cm = mCameraManager.promote();
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if (cm != nullptr) {
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AutoMutex lock(cm->mLock);
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std::vector<String8> cameraIdList;
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for (auto& pair : cm->mDeviceStatusMap) {
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cameraIdList.push_back(pair.first);
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}
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for (String8 cameraId : cameraIdList) {
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cm->onStatusChangedLocked(
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CameraServiceListener::STATUS_NOT_PRESENT, cameraId);
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}
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cm->mCameraService.clear();
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// TODO: consider adding re-connect call here?
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}
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}
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void CameraManagerGlobal::registerExtendedAvailabilityCallback(
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const ACameraManager_ExtendedAvailabilityCallbacks *callback) {
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return registerAvailCallback<ACameraManager_ExtendedAvailabilityCallbacks>(callback);
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}
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void CameraManagerGlobal::unregisterExtendedAvailabilityCallback(
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const ACameraManager_ExtendedAvailabilityCallbacks *callback) {
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Mutex::Autolock _l(mLock);
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drainPendingCallbacksLocked();
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Callback cb(callback);
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mCallbacks.erase(cb);
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}
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void CameraManagerGlobal::registerAvailabilityCallback(
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const ACameraManager_AvailabilityCallbacks *callback) {
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return registerAvailCallback<ACameraManager_AvailabilityCallbacks>(callback);
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}
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void CameraManagerGlobal::unregisterAvailabilityCallback(
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const ACameraManager_AvailabilityCallbacks *callback) {
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Mutex::Autolock _l(mLock);
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drainPendingCallbacksLocked();
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Callback cb(callback);
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mCallbacks.erase(cb);
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}
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void CameraManagerGlobal::onCallbackCalled() {
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Mutex::Autolock _l(mLock);
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if (mPendingCallbackCnt > 0) {
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mPendingCallbackCnt--;
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}
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mCallbacksCond.signal();
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}
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void CameraManagerGlobal::drainPendingCallbacksLocked() {
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while (mPendingCallbackCnt > 0) {
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auto res = mCallbacksCond.waitRelative(mLock, kCallbackDrainTimeout);
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if (res != NO_ERROR) {
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ALOGE("%s: Error waiting to drain callbacks: %s(%d)",
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__FUNCTION__, strerror(-res), res);
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break;
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}
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}
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}
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template<class T>
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void CameraManagerGlobal::registerAvailCallback(const T *callback) {
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Mutex::Autolock _l(mLock);
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Callback cb(callback);
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auto pair = mCallbacks.insert(cb);
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// Send initial callbacks if callback is newly registered
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if (pair.second) {
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for (auto& pair : mDeviceStatusMap) {
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const String8& cameraId = pair.first;
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int32_t status = pair.second.getStatus();
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// Don't send initial callbacks for camera ids which don't support
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// camera2
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if (!pair.second.supportsHAL3) {
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continue;
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}
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// Camera available/unavailable callback
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sp<AMessage> msg = new AMessage(kWhatSendSingleCallback, mHandler);
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ACameraManager_AvailabilityCallback cbFunc = isStatusAvailable(status) ?
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cb.mAvailable : cb.mUnavailable;
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msg->setPointer(kCallbackFpKey, (void *) cbFunc);
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msg->setPointer(kContextKey, cb.mContext);
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msg->setString(kCameraIdKey, AString(cameraId));
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mPendingCallbackCnt++;
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msg->post();
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// Physical camera unavailable callback
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std::set<String8> unavailablePhysicalCameras =
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pair.second.getUnavailablePhysicalIds();
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for (const auto& physicalCameraId : unavailablePhysicalCameras) {
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sp<AMessage> msg = new AMessage(kWhatSendSinglePhysicalCameraCallback, mHandler);
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ACameraManager_PhysicalCameraAvailabilityCallback cbFunc =
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cb.mPhysicalCamUnavailable;
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msg->setPointer(kCallbackFpKey, (void *) cbFunc);
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msg->setPointer(kContextKey, cb.mContext);
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msg->setString(kCameraIdKey, AString(cameraId));
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msg->setString(kPhysicalCameraIdKey, AString(physicalCameraId));
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mPendingCallbackCnt++;
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msg->post();
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}
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}
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}
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}
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bool CameraManagerGlobal::supportsCamera2ApiLocked(const String8 &cameraId) {
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bool camera2Support = false;
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auto cs = getCameraServiceLocked();
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binder::Status serviceRet =
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cs->supportsCameraApi(String16(cameraId),
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hardware::ICameraService::API_VERSION_2, &camera2Support);
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if (!serviceRet.isOk()) {
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ALOGE("%s: supportsCameraApi2Locked() call failed for cameraId %s",
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__FUNCTION__, cameraId.c_str());
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return false;
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}
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return camera2Support;
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}
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void CameraManagerGlobal::getCameraIdList(std::vector<String8>* cameraIds) {
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// Ensure that we have initialized/refreshed the list of available devices
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Mutex::Autolock _l(mLock);
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// Needed to make sure we're connected to cameraservice
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getCameraServiceLocked();
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for(auto& deviceStatus : mDeviceStatusMap) {
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int32_t status = deviceStatus.second.getStatus();
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if (status == hardware::ICameraServiceListener::STATUS_NOT_PRESENT ||
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status == hardware::ICameraServiceListener::STATUS_ENUMERATING) {
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continue;
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}
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if (!deviceStatus.second.supportsHAL3) {
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continue;
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}
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cameraIds->push_back(deviceStatus.first);
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}
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}
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bool CameraManagerGlobal::validStatus(int32_t status) {
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switch (status) {
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case hardware::ICameraServiceListener::STATUS_NOT_PRESENT:
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case hardware::ICameraServiceListener::STATUS_PRESENT:
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case hardware::ICameraServiceListener::STATUS_ENUMERATING:
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case hardware::ICameraServiceListener::STATUS_NOT_AVAILABLE:
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return true;
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default:
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return false;
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}
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}
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bool CameraManagerGlobal::isStatusAvailable(int32_t status) {
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switch (status) {
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case hardware::ICameraServiceListener::STATUS_PRESENT:
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return true;
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default:
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return false;
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}
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}
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void CameraManagerGlobal::CallbackHandler::onMessageReceived(
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const sp<AMessage> &msg) {
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onMessageReceivedInternal(msg);
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if (msg->what() == kWhatSendSingleCallback ||
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msg->what() == kWhatSendSingleAccessCallback ||
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msg->what() == kWhatSendSinglePhysicalCameraCallback) {
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notifyParent();
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}
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}
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void CameraManagerGlobal::CallbackHandler::onMessageReceivedInternal(
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const sp<AMessage> &msg) {
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switch (msg->what()) {
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case kWhatSendSingleCallback:
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{
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ACameraManager_AvailabilityCallback cb;
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void* context;
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AString cameraId;
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bool found = msg->findPointer(kCallbackFpKey, (void**) &cb);
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if (!found) {
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ALOGE("%s: Cannot find camera callback fp!", __FUNCTION__);
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return;
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}
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found = msg->findPointer(kContextKey, &context);
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if (!found) {
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ALOGE("%s: Cannot find callback context!", __FUNCTION__);
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return;
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}
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found = msg->findString(kCameraIdKey, &cameraId);
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if (!found) {
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ALOGE("%s: Cannot find camera ID!", __FUNCTION__);
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return;
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}
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(*cb)(context, cameraId.c_str());
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break;
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}
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case kWhatSendSingleAccessCallback:
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{
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ACameraManager_AccessPrioritiesChangedCallback cb;
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void* context;
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AString cameraId;
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bool found = msg->findPointer(kCallbackFpKey, (void**) &cb);
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if (!found) {
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ALOGE("%s: Cannot find camera callback fp!", __FUNCTION__);
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return;
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}
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found = msg->findPointer(kContextKey, &context);
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if (!found) {
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ALOGE("%s: Cannot find callback context!", __FUNCTION__);
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return;
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}
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(*cb)(context);
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break;
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}
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case kWhatSendSinglePhysicalCameraCallback:
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{
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ACameraManager_PhysicalCameraAvailabilityCallback cb;
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void* context;
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AString cameraId;
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AString physicalCameraId;
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bool found = msg->findPointer(kCallbackFpKey, (void**) &cb);
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if (!found) {
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ALOGE("%s: Cannot find camera callback fp!", __FUNCTION__);
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return;
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}
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if (cb == nullptr) {
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// Physical camera callback is null
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return;
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}
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found = msg->findPointer(kContextKey, &context);
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if (!found) {
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ALOGE("%s: Cannot find callback context!", __FUNCTION__);
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return;
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}
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found = msg->findString(kCameraIdKey, &cameraId);
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if (!found) {
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ALOGE("%s: Cannot find camera ID!", __FUNCTION__);
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return;
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}
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found = msg->findString(kPhysicalCameraIdKey, &physicalCameraId);
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if (!found) {
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ALOGE("%s: Cannot find physical camera ID!", __FUNCTION__);
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return;
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}
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(*cb)(context, cameraId.c_str(), physicalCameraId.c_str());
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break;
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}
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default:
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ALOGE("%s: unknown message type %d", __FUNCTION__, msg->what());
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break;
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}
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}
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void CameraManagerGlobal::CallbackHandler::notifyParent() {
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sp<CameraManagerGlobal> parent = mParent.promote();
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if (parent != nullptr) {
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parent->onCallbackCalled();
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}
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}
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binder::Status CameraManagerGlobal::CameraServiceListener::onCameraAccessPrioritiesChanged() {
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sp<CameraManagerGlobal> cm = mCameraManager.promote();
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if (cm != nullptr) {
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cm->onCameraAccessPrioritiesChanged();
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} else {
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ALOGE("Cannot deliver camera access priority callback. Global camera manager died");
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}
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return binder::Status::ok();
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}
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binder::Status CameraManagerGlobal::CameraServiceListener::onStatusChanged(
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int32_t status, const String16& cameraId) {
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sp<CameraManagerGlobal> cm = mCameraManager.promote();
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if (cm != nullptr) {
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cm->onStatusChanged(status, String8(cameraId));
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} else {
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ALOGE("Cannot deliver status change. Global camera manager died");
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}
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return binder::Status::ok();
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}
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binder::Status CameraManagerGlobal::CameraServiceListener::onPhysicalCameraStatusChanged(
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int32_t status, const String16& cameraId, const String16& physicalCameraId) {
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sp<CameraManagerGlobal> cm = mCameraManager.promote();
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if (cm != nullptr) {
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cm->onStatusChanged(status, String8(cameraId), String8(physicalCameraId));
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} else {
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ALOGE("Cannot deliver physical camera status change. Global camera manager died");
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}
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return binder::Status::ok();
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}
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void CameraManagerGlobal::onCameraAccessPrioritiesChanged() {
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Mutex::Autolock _l(mLock);
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for (auto cb : mCallbacks) {
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sp<AMessage> msg = new AMessage(kWhatSendSingleAccessCallback, mHandler);
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ACameraManager_AccessPrioritiesChangedCallback cbFp = cb.mAccessPriorityChanged;
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if (cbFp != nullptr) {
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msg->setPointer(kCallbackFpKey, (void *) cbFp);
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msg->setPointer(kContextKey, cb.mContext);
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mPendingCallbackCnt++;
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msg->post();
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}
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}
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}
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void CameraManagerGlobal::onStatusChanged(
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int32_t status, const String8& cameraId) {
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Mutex::Autolock _l(mLock);
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onStatusChangedLocked(status, cameraId);
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}
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void CameraManagerGlobal::onStatusChangedLocked(
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int32_t status, const String8& cameraId) {
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if (!validStatus(status)) {
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ALOGE("%s: Invalid status %d", __FUNCTION__, status);
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return;
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}
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bool firstStatus = (mDeviceStatusMap.count(cameraId) == 0);
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int32_t oldStatus = firstStatus ?
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status : // first status
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mDeviceStatusMap[cameraId].getStatus();
|
|
|
|
if (!firstStatus &&
|
|
isStatusAvailable(status) == isStatusAvailable(oldStatus)) {
|
|
// No status update. No need to send callback
|
|
return;
|
|
}
|
|
|
|
bool supportsHAL3 = supportsCamera2ApiLocked(cameraId);
|
|
if (firstStatus) {
|
|
mDeviceStatusMap.emplace(std::piecewise_construct,
|
|
std::forward_as_tuple(cameraId),
|
|
std::forward_as_tuple(status, supportsHAL3));
|
|
} else {
|
|
mDeviceStatusMap[cameraId].updateStatus(status);
|
|
}
|
|
// Iterate through all registered callbacks
|
|
if (supportsHAL3) {
|
|
for (auto cb : mCallbacks) {
|
|
sp<AMessage> msg = new AMessage(kWhatSendSingleCallback, mHandler);
|
|
ACameraManager_AvailabilityCallback cbFp = isStatusAvailable(status) ?
|
|
cb.mAvailable : cb.mUnavailable;
|
|
msg->setPointer(kCallbackFpKey, (void *) cbFp);
|
|
msg->setPointer(kContextKey, cb.mContext);
|
|
msg->setString(kCameraIdKey, AString(cameraId));
|
|
mPendingCallbackCnt++;
|
|
msg->post();
|
|
}
|
|
}
|
|
if (status == hardware::ICameraServiceListener::STATUS_NOT_PRESENT) {
|
|
mDeviceStatusMap.erase(cameraId);
|
|
}
|
|
}
|
|
|
|
void CameraManagerGlobal::onStatusChanged(
|
|
int32_t status, const String8& cameraId, const String8& physicalCameraId) {
|
|
Mutex::Autolock _l(mLock);
|
|
onStatusChangedLocked(status, cameraId, physicalCameraId);
|
|
}
|
|
|
|
void CameraManagerGlobal::onStatusChangedLocked(
|
|
int32_t status, const String8& cameraId, const String8& physicalCameraId) {
|
|
if (!validStatus(status)) {
|
|
ALOGE("%s: Invalid status %d", __FUNCTION__, status);
|
|
return;
|
|
}
|
|
|
|
auto logicalStatus = mDeviceStatusMap.find(cameraId);
|
|
if (logicalStatus == mDeviceStatusMap.end()) {
|
|
ALOGE("%s: Physical camera id %s status change on a non-present id %s",
|
|
__FUNCTION__, physicalCameraId.c_str(), cameraId.c_str());
|
|
return;
|
|
}
|
|
int32_t logicalCamStatus = mDeviceStatusMap[cameraId].getStatus();
|
|
if (logicalCamStatus != hardware::ICameraServiceListener::STATUS_PRESENT &&
|
|
logicalCamStatus != hardware::ICameraServiceListener::STATUS_NOT_AVAILABLE) {
|
|
ALOGE("%s: Physical camera id %s status %d change for an invalid logical camera state %d",
|
|
__FUNCTION__, physicalCameraId.string(), status, logicalCamStatus);
|
|
return;
|
|
}
|
|
|
|
bool supportsHAL3 = supportsCamera2ApiLocked(cameraId);
|
|
|
|
bool updated = false;
|
|
if (status == hardware::ICameraServiceListener::STATUS_PRESENT) {
|
|
updated = mDeviceStatusMap[cameraId].removeUnavailablePhysicalId(physicalCameraId);
|
|
} else {
|
|
updated = mDeviceStatusMap[cameraId].addUnavailablePhysicalId(physicalCameraId);
|
|
}
|
|
|
|
// Iterate through all registered callbacks
|
|
if (supportsHAL3 && updated) {
|
|
for (auto cb : mCallbacks) {
|
|
sp<AMessage> msg = new AMessage(kWhatSendSinglePhysicalCameraCallback, mHandler);
|
|
ACameraManager_PhysicalCameraAvailabilityCallback cbFp = isStatusAvailable(status) ?
|
|
cb.mPhysicalCamAvailable : cb.mPhysicalCamUnavailable;
|
|
msg->setPointer(kCallbackFpKey, (void *) cbFp);
|
|
msg->setPointer(kContextKey, cb.mContext);
|
|
msg->setString(kCameraIdKey, AString(cameraId));
|
|
msg->setString(kPhysicalCameraIdKey, AString(physicalCameraId));
|
|
mPendingCallbackCnt++;
|
|
msg->post();
|
|
}
|
|
}
|
|
}
|
|
|
|
int32_t CameraManagerGlobal::StatusAndHAL3Support::getStatus() {
|
|
std::lock_guard<std::mutex> lock(mLock);
|
|
return status;
|
|
}
|
|
|
|
void CameraManagerGlobal::StatusAndHAL3Support::updateStatus(int32_t newStatus) {
|
|
std::lock_guard<std::mutex> lock(mLock);
|
|
status = newStatus;
|
|
}
|
|
|
|
bool CameraManagerGlobal::StatusAndHAL3Support::addUnavailablePhysicalId(
|
|
const String8& physicalCameraId) {
|
|
std::lock_guard<std::mutex> lock(mLock);
|
|
auto result = unavailablePhysicalIds.insert(physicalCameraId);
|
|
return result.second;
|
|
}
|
|
|
|
bool CameraManagerGlobal::StatusAndHAL3Support::removeUnavailablePhysicalId(
|
|
const String8& physicalCameraId) {
|
|
std::lock_guard<std::mutex> lock(mLock);
|
|
auto count = unavailablePhysicalIds.erase(physicalCameraId);
|
|
return count > 0;
|
|
}
|
|
|
|
std::set<String8> CameraManagerGlobal::StatusAndHAL3Support::getUnavailablePhysicalIds() {
|
|
std::lock_guard<std::mutex> lock(mLock);
|
|
return unavailablePhysicalIds;
|
|
}
|
|
|
|
} // namespace acam
|
|
} // namespace android
|
|
|
|
/**
|
|
* ACameraManger Implementation
|
|
*/
|
|
camera_status_t
|
|
ACameraManager::getCameraIdList(ACameraIdList** cameraIdList) {
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
std::vector<String8> idList;
|
|
CameraManagerGlobal::getInstance().getCameraIdList(&idList);
|
|
|
|
int numCameras = idList.size();
|
|
ACameraIdList *out = new ACameraIdList;
|
|
if (!out) {
|
|
ALOGE("Allocate memory for ACameraIdList failed!");
|
|
return ACAMERA_ERROR_NOT_ENOUGH_MEMORY;
|
|
}
|
|
out->numCameras = numCameras;
|
|
out->cameraIds = new const char*[numCameras];
|
|
if (!out->cameraIds) {
|
|
ALOGE("Allocate memory for ACameraIdList failed!");
|
|
deleteCameraIdList(out);
|
|
return ACAMERA_ERROR_NOT_ENOUGH_MEMORY;
|
|
}
|
|
for (int i = 0; i < numCameras; i++) {
|
|
const char* src = idList[i].string();
|
|
size_t dstSize = strlen(src) + 1;
|
|
char* dst = new char[dstSize];
|
|
if (!dst) {
|
|
ALOGE("Allocate memory for ACameraIdList failed!");
|
|
deleteCameraIdList(out);
|
|
return ACAMERA_ERROR_NOT_ENOUGH_MEMORY;
|
|
}
|
|
strlcpy(dst, src, dstSize);
|
|
out->cameraIds[i] = dst;
|
|
}
|
|
*cameraIdList = out;
|
|
return ACAMERA_OK;
|
|
}
|
|
|
|
void
|
|
ACameraManager::deleteCameraIdList(ACameraIdList* cameraIdList) {
|
|
if (cameraIdList != nullptr) {
|
|
if (cameraIdList->cameraIds != nullptr) {
|
|
for (int i = 0; i < cameraIdList->numCameras; i ++) {
|
|
if (cameraIdList->cameraIds[i] != nullptr) {
|
|
delete[] cameraIdList->cameraIds[i];
|
|
}
|
|
}
|
|
delete[] cameraIdList->cameraIds;
|
|
}
|
|
delete cameraIdList;
|
|
}
|
|
}
|
|
|
|
camera_status_t ACameraManager::getCameraCharacteristics(
|
|
const char* cameraIdStr, sp<ACameraMetadata>* characteristics) {
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
sp<hardware::ICameraService> cs = CameraManagerGlobal::getInstance().getCameraService();
|
|
if (cs == nullptr) {
|
|
ALOGE("%s: Cannot reach camera service!", __FUNCTION__);
|
|
return ACAMERA_ERROR_CAMERA_DISCONNECTED;
|
|
}
|
|
|
|
CameraMetadata rawMetadata;
|
|
int targetSdkVersion = android_get_application_target_sdk_version();
|
|
binder::Status serviceRet = cs->getCameraCharacteristics(String16(cameraIdStr),
|
|
targetSdkVersion, /*overrideToPortrait*/false, &rawMetadata);
|
|
if (!serviceRet.isOk()) {
|
|
switch(serviceRet.serviceSpecificErrorCode()) {
|
|
case hardware::ICameraService::ERROR_DISCONNECTED:
|
|
ALOGE("%s: Camera %s has been disconnected", __FUNCTION__, cameraIdStr);
|
|
return ACAMERA_ERROR_CAMERA_DISCONNECTED;
|
|
case hardware::ICameraService::ERROR_ILLEGAL_ARGUMENT:
|
|
ALOGE("%s: Camera ID %s does not exist!", __FUNCTION__, cameraIdStr);
|
|
return ACAMERA_ERROR_INVALID_PARAMETER;
|
|
default:
|
|
ALOGE("Get camera characteristics from camera service failed: %s",
|
|
serviceRet.toString8().string());
|
|
return ACAMERA_ERROR_UNKNOWN; // should not reach here
|
|
}
|
|
}
|
|
|
|
*characteristics = new ACameraMetadata(
|
|
rawMetadata.release(), ACameraMetadata::ACM_CHARACTERISTICS);
|
|
return ACAMERA_OK;
|
|
}
|
|
|
|
camera_status_t
|
|
ACameraManager::openCamera(
|
|
const char* cameraId,
|
|
ACameraDevice_StateCallbacks* callback,
|
|
/*out*/ACameraDevice** outDevice) {
|
|
sp<ACameraMetadata> chars;
|
|
camera_status_t ret = getCameraCharacteristics(cameraId, &chars);
|
|
Mutex::Autolock _l(mLock);
|
|
if (ret != ACAMERA_OK) {
|
|
ALOGE("%s: cannot get camera characteristics for camera %s. err %d",
|
|
__FUNCTION__, cameraId, ret);
|
|
return ACAMERA_ERROR_INVALID_PARAMETER;
|
|
}
|
|
|
|
ACameraDevice* device = new ACameraDevice(cameraId, callback, chars);
|
|
|
|
sp<hardware::ICameraService> cs = CameraManagerGlobal::getInstance().getCameraService();
|
|
if (cs == nullptr) {
|
|
ALOGE("%s: Cannot reach camera service!", __FUNCTION__);
|
|
delete device;
|
|
return ACAMERA_ERROR_CAMERA_DISCONNECTED;
|
|
}
|
|
|
|
sp<hardware::camera2::ICameraDeviceCallbacks> callbacks = device->getServiceCallback();
|
|
sp<hardware::camera2::ICameraDeviceUser> deviceRemote;
|
|
int targetSdkVersion = android_get_application_target_sdk_version();
|
|
// No way to get package name from native.
|
|
// Send a zero length package name and let camera service figure it out from UID
|
|
binder::Status serviceRet = cs->connectDevice(
|
|
callbacks, String16(cameraId), String16(""), {},
|
|
hardware::ICameraService::USE_CALLING_UID, /*oomScoreOffset*/0,
|
|
targetSdkVersion, /*overrideToPortrait*/false, /*out*/&deviceRemote);
|
|
|
|
if (!serviceRet.isOk()) {
|
|
ALOGE("%s: connect camera device failed: %s", __FUNCTION__, serviceRet.toString8().string());
|
|
// Convert serviceRet to camera_status_t
|
|
switch(serviceRet.serviceSpecificErrorCode()) {
|
|
case hardware::ICameraService::ERROR_DISCONNECTED:
|
|
ret = ACAMERA_ERROR_CAMERA_DISCONNECTED;
|
|
break;
|
|
case hardware::ICameraService::ERROR_CAMERA_IN_USE:
|
|
ret = ACAMERA_ERROR_CAMERA_IN_USE;
|
|
break;
|
|
case hardware::ICameraService::ERROR_MAX_CAMERAS_IN_USE:
|
|
ret = ACAMERA_ERROR_MAX_CAMERA_IN_USE;
|
|
break;
|
|
case hardware::ICameraService::ERROR_ILLEGAL_ARGUMENT:
|
|
ret = ACAMERA_ERROR_INVALID_PARAMETER;
|
|
break;
|
|
case hardware::ICameraService::ERROR_DEPRECATED_HAL:
|
|
// Should not reach here since we filtered legacy HALs earlier
|
|
ret = ACAMERA_ERROR_INVALID_PARAMETER;
|
|
break;
|
|
case hardware::ICameraService::ERROR_DISABLED:
|
|
ret = ACAMERA_ERROR_CAMERA_DISABLED;
|
|
break;
|
|
case hardware::ICameraService::ERROR_PERMISSION_DENIED:
|
|
ret = ACAMERA_ERROR_PERMISSION_DENIED;
|
|
break;
|
|
case hardware::ICameraService::ERROR_INVALID_OPERATION:
|
|
default:
|
|
ret = ACAMERA_ERROR_UNKNOWN;
|
|
break;
|
|
}
|
|
|
|
delete device;
|
|
return ret;
|
|
}
|
|
if (deviceRemote == nullptr) {
|
|
ALOGE("%s: connect camera device failed! remote device is null", __FUNCTION__);
|
|
delete device;
|
|
return ACAMERA_ERROR_CAMERA_DISCONNECTED;
|
|
}
|
|
device->setRemoteDevice(deviceRemote);
|
|
*outDevice = device;
|
|
return ACAMERA_OK;
|
|
}
|
|
|
|
ACameraManager::~ACameraManager() {
|
|
|
|
}
|