/*
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* x3a_analyzer_manager.cpp - analyzer manager
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*
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* Copyright (c) 2014-2015 Intel Corporation
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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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* Author: Wind Yuan <feng.yuan@intel.com>
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*/
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#include "x3a_analyzer_manager.h"
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#include "x3a_analyzer_simple.h"
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#include <sys/types.h>
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#include <dirent.h>
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namespace XCam {
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#define XCAM_DEFAULT_3A_LIB_DIR "/usr/lib/xcam/plugins/3a"
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SmartPtr<X3aAnalyzerManager> X3aAnalyzerManager::_instance(NULL);
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Mutex X3aAnalyzerManager::_mutex;
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SmartPtr<X3aAnalyzerManager>
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X3aAnalyzerManager::instance()
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{
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SmartLock lock(_mutex);
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if (_instance.ptr())
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return _instance;
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_instance = new X3aAnalyzerManager;
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return _instance;
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}
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X3aAnalyzerManager::X3aAnalyzerManager ()
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{
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XCAM_LOG_DEBUG ("X3aAnalyzerManager construction");
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}
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X3aAnalyzerManager::~X3aAnalyzerManager ()
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{
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XCAM_LOG_DEBUG ("X3aAnalyzerManager destruction");
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}
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SmartPtr<X3aAnalyzer>
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X3aAnalyzerManager::create_analyzer()
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{
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SmartPtr<X3aAnalyzer> analyzer = find_analyzer();
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if (!analyzer.ptr())
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analyzer = new X3aAnalyzerSimple;
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return analyzer;
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}
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SmartPtr<X3aAnalyzer>
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X3aAnalyzerManager::find_analyzer ()
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{
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char lib_path[512];
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const char *dir_path = NULL;
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DIR *dir_3a = NULL;
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struct dirent *dirent_3a = NULL;
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SmartPtr<X3aAnalyzer> analyzer;
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dir_path = getenv ("XCAM_3A_LIB");
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if (!dir_path) {
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dir_path = XCAM_DEFAULT_3A_LIB_DIR;
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XCAM_LOG_INFO ("doesn't find environment=>XCAM_3A_LIB, change to default dir:%s", dir_path);
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}
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dir_3a = opendir (dir_path);
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if (dir_3a) {
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while ((dirent_3a = readdir (dir_3a)) != NULL) {
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if (dirent_3a->d_type != DT_LNK &&
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dirent_3a->d_type != DT_REG)
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continue;
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snprintf (lib_path, sizeof(lib_path), "%s/%s", dir_path, dirent_3a->d_name);
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analyzer = load_analyzer_from_binary (lib_path);
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if (analyzer.ptr())
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break;
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}
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}
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if (dir_3a)
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closedir (dir_3a);
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return analyzer;
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}
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SmartPtr<X3aAnalyzer>
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X3aAnalyzerManager::load_analyzer_from_binary (const char *path)
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{
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SmartPtr<X3aAnalyzer> analyzer;
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XCAM_ASSERT (path);
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_loader.release ();
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_loader = new DynamicAnalyzerLoader (path);
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SmartPtr<AnalyzerLoader> loader = _loader.dynamic_cast_ptr<AnalyzerLoader> ();
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analyzer = _loader->load_analyzer (loader);
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if (analyzer.ptr ())
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return analyzer;
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XCAM_LOG_WARNING ("load 3A analyzer failed from: %s", path);
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return NULL;
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}
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};
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