113 lines
3.4 KiB
C++
Executable File
113 lines
3.4 KiB
C++
Executable File
/*
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* Copyright (C) 2015-2017 Intel Corporation.
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* Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
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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 "RKISP2ITaskEventSource"
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#include "RKISP2ITaskEventSource.h"
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#include "LogHelper.h"
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namespace android {
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namespace camera2 {
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namespace rkisp2 {
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/**
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* Attach a Listening client to a particular event
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*
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* @param observer interface pointer to attach
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* @param event concrete event to listen to
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*/
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status_t
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RKISP2ITaskEventSource::attachListener(RKISP2ITaskEventListener *observer,
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RKISP2ITaskEventListener::PUTaskEventType event)
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{
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LOGD("@%s: %p to event type %d", __FUNCTION__, observer, event);
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status_t status = NO_ERROR;
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if (observer == nullptr)
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return BAD_VALUE;
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std::lock_guard<std::mutex> l(mListenerLock);
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// Check event to be in the range of allowed events.
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if ((event < RKISP2ITaskEventListener::PU_TASK_EVENT_BUFFER_COMPLETE ) ||
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(event > RKISP2ITaskEventListener::PU_TASK_EVENT_MAX)) {
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LOGE("Event is outside the range of allowed events: %d", event);
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return BAD_VALUE;
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}
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// Check if we have any listener registered to this event
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std::map<RKISP2ITaskEventListener::PUTaskEventType, listener_list_t>::
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iterator itListener = mListeners.find(event);
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if (itListener == mListeners.end()) {
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// First time someone registers for this event
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listener_list_t theList;
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theList.push_back(observer);
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mListeners.insert(std::make_pair(event, theList));
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return NO_ERROR;
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}
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// Now we will have more than one listener to this event
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listener_list_t &theList = itListener->second;
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for (const auto &listener : theList)
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if (listener == observer) {
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LOGW("listener previously added, ignoring");
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return ALREADY_EXISTS;
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}
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theList.push_back(observer);
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itListener->second = theList;
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return status;
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}
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/**
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* Detach all bservers interface
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*/
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void
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RKISP2ITaskEventSource::cleanListener()
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{
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LOGD("@%s", __FUNCTION__);
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std::lock_guard<std::mutex> l(mListenerLock);
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for (auto &listener : mListeners)
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listener.second.clear();
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mListeners.clear();
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}
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status_t
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RKISP2ITaskEventSource::notifyListeners(RKISP2ITaskEventListener::PUTaskMessage *msg)
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{
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LOGD("@%s", __FUNCTION__);
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bool ret = false;
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std::lock_guard<std::mutex> l(mListenerLock);
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if (mListeners.size() > 0) {
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std::map<RKISP2ITaskEventListener::PUTaskEventType, listener_list_t>::
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iterator it = mListeners.find(msg->event.type);
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if (it != mListeners.end()) {
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listener_list_t &theList = it->second;
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for (const auto &listener : theList)
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ret |= listener->notifyPUTaskEvent((RKISP2ITaskEventListener::PUTaskMessage*)msg);
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}
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}
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return ret;
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}
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} // namespace rkisp2
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} // namespace camera2
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} // namespace android
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