mirror of
https://github.com/42wim/matterbridge.git
synced 2024-12-20 16:02:01 -08:00
170 lines
4.8 KiB
C++
170 lines
4.8 KiB
C++
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/*
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* Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved.
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <cstring>
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#include <fstream>
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#include <sstream>
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#include "lottie_lottiemodel.h"
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using namespace rlottie::internal;
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#ifdef LOTTIE_CACHE_SUPPORT
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#include <mutex>
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#include <unordered_map>
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class ModelCache {
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public:
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static ModelCache &instance()
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{
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static ModelCache singleton;
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return singleton;
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}
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std::shared_ptr<model::Composition> find(const std::string &key)
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{
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std::lock_guard<std::mutex> guard(mMutex);
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if (!mcacheSize) return nullptr;
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auto search = mHash.find(key);
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return (search != mHash.end()) ? search->second : nullptr;
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}
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void add(const std::string &key, std::shared_ptr<model::Composition> value)
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{
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std::lock_guard<std::mutex> guard(mMutex);
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if (!mcacheSize) return;
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//@TODO just remove the 1st element
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// not the best of LRU logic
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if (mcacheSize == mHash.size()) mHash.erase(mHash.cbegin());
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mHash[key] = std::move(value);
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}
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void configureCacheSize(size_t cacheSize)
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{
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std::lock_guard<std::mutex> guard(mMutex);
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mcacheSize = cacheSize;
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if (!mcacheSize) mHash.clear();
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}
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private:
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ModelCache() = default;
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std::unordered_map<std::string, std::shared_ptr<model::Composition>> mHash;
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std::mutex mMutex;
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size_t mcacheSize{10};
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};
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#else
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class ModelCache {
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public:
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static ModelCache &instance()
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{
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static ModelCache singleton;
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return singleton;
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}
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std::shared_ptr<model::Composition> find(const std::string &)
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{
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return nullptr;
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}
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void add(const std::string &, std::shared_ptr<model::Composition>) {}
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void configureCacheSize(size_t) {}
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};
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#endif
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static std::string dirname(const std::string &path)
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{
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const char *ptr = strrchr(path.c_str(), '/');
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#ifdef _WIN32
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if (ptr) ptr = strrchr(ptr + 1, '\\');
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#endif
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int len = int(ptr + 1 - path.c_str()); // +1 to include '/'
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return std::string(path, 0, len);
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}
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void model::configureModelCacheSize(size_t cacheSize)
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{
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ModelCache::instance().configureCacheSize(cacheSize);
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}
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std::shared_ptr<model::Composition> model::loadFromFile(const std::string &path,
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bool cachePolicy)
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{
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if (cachePolicy) {
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auto obj = ModelCache::instance().find(path);
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if (obj) return obj;
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}
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std::ifstream f;
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f.open(path);
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if (!f.is_open()) {
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vCritical << "failed to open file = " << path.c_str();
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return {};
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} else {
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std::string content;
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std::getline(f, content, '\0');
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f.close();
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if (content.empty()) return {};
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auto obj = internal::model::parse(const_cast<char *>(content.c_str()),
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dirname(path));
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if (obj && cachePolicy) ModelCache::instance().add(path, obj);
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return obj;
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}
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}
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std::shared_ptr<model::Composition> model::loadFromData(
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std::string jsonData, const std::string &key, std::string resourcePath,
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bool cachePolicy)
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{
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if (cachePolicy) {
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auto obj = ModelCache::instance().find(key);
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if (obj) return obj;
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}
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auto obj = internal::model::parse(const_cast<char *>(jsonData.c_str()),
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std::move(resourcePath));
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if (obj && cachePolicy) ModelCache::instance().add(key, obj);
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return obj;
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}
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std::shared_ptr<model::Composition> model::loadFromData(
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std::string jsonData, std::string resourcePath, model::ColorFilter filter)
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{
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return internal::model::parse(const_cast<char *>(jsonData.c_str()),
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std::move(resourcePath), std::move(filter));
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}
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