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420 lines
13 KiB
420 lines
13 KiB
/*
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* Copyright (C) 2013 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_TAG "Camera2ClientBase"
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#define ATRACE_TAG ATRACE_TAG_CAMERA
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//#define LOG_NDEBUG 0
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#include <inttypes.h>
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#include <utils/Log.h>
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#include <utils/Trace.h>
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#include <cutils/properties.h>
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#include <gui/Surface.h>
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#include <gui/Surface.h>
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#include <camera/CameraSessionStats.h>
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#include "common/Camera2ClientBase.h"
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#include "api2/CameraDeviceClient.h"
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#include "device3/Camera3Device.h"
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#include "utils/CameraThreadState.h"
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#include "utils/CameraServiceProxyWrapper.h"
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namespace android {
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using namespace camera2;
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// Interface used by CameraService
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template <typename TClientBase>
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Camera2ClientBase<TClientBase>::Camera2ClientBase(
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const sp<CameraService>& cameraService,
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const sp<TCamCallbacks>& remoteCallback,
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const String16& clientPackageName,
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const std::optional<String16>& clientFeatureId,
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const String8& cameraId,
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int api1CameraId,
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int cameraFacing,
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int sensorOrientation,
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int clientPid,
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uid_t clientUid,
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int servicePid,
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bool overrideForPerfClass):
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TClientBase(cameraService, remoteCallback, clientPackageName, clientFeatureId,
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cameraId, api1CameraId, cameraFacing, sensorOrientation, clientPid, clientUid,
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servicePid),
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mSharedCameraCallbacks(remoteCallback),
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mDeviceVersion(cameraService->getDeviceVersion(TClientBase::mCameraIdStr)),
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mDevice(new Camera3Device(cameraId, overrideForPerfClass)),
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mDeviceActive(false), mApi1CameraId(api1CameraId)
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{
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ALOGI("Camera %s: Opened. Client: %s (PID %d, UID %d)", cameraId.string(),
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String8(clientPackageName).string(), clientPid, clientUid);
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mInitialClientPid = clientPid;
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LOG_ALWAYS_FATAL_IF(mDevice == 0, "Device should never be NULL here.");
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}
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template <typename TClientBase>
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status_t Camera2ClientBase<TClientBase>::checkPid(const char* checkLocation)
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const {
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int callingPid = CameraThreadState::getCallingPid();
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if (callingPid == TClientBase::mClientPid) return NO_ERROR;
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ALOGE("%s: attempt to use a locked camera from a different process"
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" (old pid %d, new pid %d)", checkLocation, TClientBase::mClientPid, callingPid);
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return PERMISSION_DENIED;
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}
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template <typename TClientBase>
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status_t Camera2ClientBase<TClientBase>::initialize(sp<CameraProviderManager> manager,
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const String8& monitorTags) {
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return initializeImpl(manager, monitorTags);
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}
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template <typename TClientBase>
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template <typename TProviderPtr>
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status_t Camera2ClientBase<TClientBase>::initializeImpl(TProviderPtr providerPtr,
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const String8& monitorTags) {
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ATRACE_CALL();
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ALOGV("%s: Initializing client for camera %s", __FUNCTION__,
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TClientBase::mCameraIdStr.string());
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status_t res;
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// Verify ops permissions
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res = TClientBase::startCameraOps();
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if (res != OK) {
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return res;
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}
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if (mDevice == NULL) {
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ALOGE("%s: Camera %s: No device connected",
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__FUNCTION__, TClientBase::mCameraIdStr.string());
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return NO_INIT;
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}
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res = mDevice->initialize(providerPtr, monitorTags);
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if (res != OK) {
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ALOGE("%s: Camera %s: unable to initialize device: %s (%d)",
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__FUNCTION__, TClientBase::mCameraIdStr.string(), strerror(-res), res);
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return res;
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}
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wp<NotificationListener> weakThis(this);
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res = mDevice->setNotifyCallback(weakThis);
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return OK;
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}
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template <typename TClientBase>
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Camera2ClientBase<TClientBase>::~Camera2ClientBase() {
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ATRACE_CALL();
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TClientBase::mDestructionStarted = true;
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disconnect();
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ALOGI("Closed Camera %s. Client was: %s (PID %d, UID %u)",
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TClientBase::mCameraIdStr.string(),
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String8(TClientBase::mClientPackageName).string(),
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mInitialClientPid, TClientBase::mClientUid);
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}
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template <typename TClientBase>
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status_t Camera2ClientBase<TClientBase>::dumpClient(int fd,
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const Vector<String16>& args) {
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String8 result;
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result.appendFormat("Camera2ClientBase[%s] (%p) PID: %d, dump:\n",
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TClientBase::mCameraIdStr.string(),
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(TClientBase::getRemoteCallback() != NULL ?
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IInterface::asBinder(TClientBase::getRemoteCallback()).get() : NULL),
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TClientBase::mClientPid);
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result.append(" State: ");
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write(fd, result.string(), result.size());
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// TODO: print dynamic/request section from most recent requests
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return dumpDevice(fd, args);
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}
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template <typename TClientBase>
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status_t Camera2ClientBase<TClientBase>::dumpDevice(
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int fd,
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const Vector<String16>& args) {
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String8 result;
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result = " Device dump:\n";
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write(fd, result.string(), result.size());
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sp<CameraDeviceBase> device = mDevice;
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if (!device.get()) {
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result = " *** Device is detached\n";
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write(fd, result.string(), result.size());
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return NO_ERROR;
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}
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status_t res = device->dump(fd, args);
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if (res != OK) {
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result = String8::format(" Error dumping device: %s (%d)",
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strerror(-res), res);
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write(fd, result.string(), result.size());
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}
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return NO_ERROR;
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}
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// ICameraClient2BaseUser interface
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template <typename TClientBase>
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binder::Status Camera2ClientBase<TClientBase>::disconnect() {
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ATRACE_CALL();
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Mutex::Autolock icl(mBinderSerializationLock);
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binder::Status res = binder::Status::ok();
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// Allow both client and the media server to disconnect at all times
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int callingPid = CameraThreadState::getCallingPid();
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if (callingPid != TClientBase::mClientPid &&
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callingPid != TClientBase::mServicePid) return res;
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ALOGV("Camera %s: Shutting down", TClientBase::mCameraIdStr.string());
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// Before detaching the device, cache the info from current open session.
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// The disconnected check avoids duplication of info and also prevents
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// deadlock while acquiring service lock in cacheDump.
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if (!TClientBase::mDisconnected) {
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Camera2ClientBase::getCameraService()->cacheDump();
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}
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detachDevice();
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CameraService::BasicClient::disconnect();
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ALOGV("Camera %s: Shut down complete", TClientBase::mCameraIdStr.string());
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return res;
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}
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template <typename TClientBase>
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void Camera2ClientBase<TClientBase>::detachDevice() {
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if (mDevice == 0) return;
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mDevice->disconnect();
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ALOGV("Camera %s: Detach complete", TClientBase::mCameraIdStr.string());
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}
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template <typename TClientBase>
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status_t Camera2ClientBase<TClientBase>::connect(
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const sp<TCamCallbacks>& client) {
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ATRACE_CALL();
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ALOGV("%s: E", __FUNCTION__);
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Mutex::Autolock icl(mBinderSerializationLock);
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if (TClientBase::mClientPid != 0 &&
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CameraThreadState::getCallingPid() != TClientBase::mClientPid) {
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ALOGE("%s: Camera %s: Connection attempt from pid %d; "
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"current locked to pid %d",
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__FUNCTION__,
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TClientBase::mCameraIdStr.string(),
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CameraThreadState::getCallingPid(),
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TClientBase::mClientPid);
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return BAD_VALUE;
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}
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TClientBase::mClientPid = CameraThreadState::getCallingPid();
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TClientBase::mRemoteCallback = client;
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mSharedCameraCallbacks = client;
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return OK;
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}
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/** Device-related methods */
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template <typename TClientBase>
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void Camera2ClientBase<TClientBase>::notifyError(
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int32_t errorCode,
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const CaptureResultExtras& resultExtras) {
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ALOGE("Error condition %d reported by HAL, requestId %" PRId32, errorCode,
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resultExtras.requestId);
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}
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template <typename TClientBase>
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status_t Camera2ClientBase<TClientBase>::notifyActive() {
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if (!mDeviceActive) {
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status_t res = TClientBase::startCameraStreamingOps();
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if (res != OK) {
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ALOGE("%s: Camera %s: Error starting camera streaming ops: %d", __FUNCTION__,
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TClientBase::mCameraIdStr.string(), res);
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return res;
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}
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CameraServiceProxyWrapper::logActive(TClientBase::mCameraIdStr);
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}
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mDeviceActive = true;
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ALOGV("Camera device is now active");
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return OK;
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}
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template <typename TClientBase>
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void Camera2ClientBase<TClientBase>::notifyIdle(
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int64_t requestCount, int64_t resultErrorCount, bool deviceError,
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const std::vector<hardware::CameraStreamStats>& streamStats) {
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if (mDeviceActive) {
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status_t res = TClientBase::finishCameraStreamingOps();
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if (res != OK) {
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ALOGE("%s: Camera %s: Error finishing streaming ops: %d", __FUNCTION__,
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TClientBase::mCameraIdStr.string(), res);
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}
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CameraServiceProxyWrapper::logIdle(TClientBase::mCameraIdStr,
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requestCount, resultErrorCount, deviceError, streamStats);
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}
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mDeviceActive = false;
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ALOGV("Camera device is now idle");
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}
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template <typename TClientBase>
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void Camera2ClientBase<TClientBase>::notifyShutter(const CaptureResultExtras& resultExtras,
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nsecs_t timestamp) {
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(void)resultExtras;
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(void)timestamp;
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ALOGV("%s: Shutter notification for request id %" PRId32 " at time %" PRId64,
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__FUNCTION__, resultExtras.requestId, timestamp);
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}
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template <typename TClientBase>
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void Camera2ClientBase<TClientBase>::notifyAutoFocus(uint8_t newState,
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int triggerId) {
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(void)newState;
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(void)triggerId;
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ALOGV("%s: Autofocus state now %d, last trigger %d",
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__FUNCTION__, newState, triggerId);
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}
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template <typename TClientBase>
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void Camera2ClientBase<TClientBase>::notifyAutoExposure(uint8_t newState,
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int triggerId) {
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(void)newState;
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(void)triggerId;
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ALOGV("%s: Autoexposure state now %d, last trigger %d",
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__FUNCTION__, newState, triggerId);
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}
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template <typename TClientBase>
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void Camera2ClientBase<TClientBase>::notifyAutoWhitebalance(uint8_t newState,
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int triggerId) {
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(void)newState;
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(void)triggerId;
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ALOGV("%s: Auto-whitebalance state now %d, last trigger %d",
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__FUNCTION__, newState, triggerId);
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}
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template <typename TClientBase>
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void Camera2ClientBase<TClientBase>::notifyPrepared(int streamId) {
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(void)streamId;
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ALOGV("%s: Stream %d now prepared",
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__FUNCTION__, streamId);
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}
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template <typename TClientBase>
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void Camera2ClientBase<TClientBase>::notifyRequestQueueEmpty() {
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ALOGV("%s: Request queue now empty", __FUNCTION__);
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}
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template <typename TClientBase>
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void Camera2ClientBase<TClientBase>::notifyRepeatingRequestError(long lastFrameNumber) {
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(void)lastFrameNumber;
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ALOGV("%s: Repeating request was stopped. Last frame number is %ld",
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__FUNCTION__, lastFrameNumber);
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}
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template <typename TClientBase>
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int Camera2ClientBase<TClientBase>::getCameraId() const {
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return mApi1CameraId;
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}
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template <typename TClientBase>
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int Camera2ClientBase<TClientBase>::getCameraDeviceVersion() const {
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return mDeviceVersion;
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}
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template <typename TClientBase>
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const sp<CameraDeviceBase>& Camera2ClientBase<TClientBase>::getCameraDevice() {
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return mDevice;
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}
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template <typename TClientBase>
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const sp<CameraService>& Camera2ClientBase<TClientBase>::getCameraService() {
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return TClientBase::sCameraService;
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}
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template <typename TClientBase>
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Camera2ClientBase<TClientBase>::SharedCameraCallbacks::Lock::Lock(
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SharedCameraCallbacks &client) :
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mRemoteCallback(client.mRemoteCallback),
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mSharedClient(client) {
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mSharedClient.mRemoteCallbackLock.lock();
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}
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template <typename TClientBase>
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Camera2ClientBase<TClientBase>::SharedCameraCallbacks::Lock::~Lock() {
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mSharedClient.mRemoteCallbackLock.unlock();
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}
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template <typename TClientBase>
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Camera2ClientBase<TClientBase>::SharedCameraCallbacks::SharedCameraCallbacks(
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const sp<TCamCallbacks>&client) :
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mRemoteCallback(client) {
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}
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template <typename TClientBase>
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typename Camera2ClientBase<TClientBase>::SharedCameraCallbacks&
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Camera2ClientBase<TClientBase>::SharedCameraCallbacks::operator=(
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const sp<TCamCallbacks>&client) {
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Mutex::Autolock l(mRemoteCallbackLock);
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mRemoteCallback = client;
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return *this;
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}
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template <typename TClientBase>
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void Camera2ClientBase<TClientBase>::SharedCameraCallbacks::clear() {
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Mutex::Autolock l(mRemoteCallbackLock);
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mRemoteCallback.clear();
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}
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template class Camera2ClientBase<CameraService::Client>;
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template class Camera2ClientBase<CameraDeviceClientBase>;
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} // namespace android
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