mirror of
https://github.com/obsproject/obs-studio.git
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92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
/******************************************************************************
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Copyright (C) 2025 by Taylor Giampaolo <warchamp7@obsproject.com>
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Lain Bailey <lain@obsproject.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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#pragma once
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#include <obs.hpp>
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#include <utility/ScreenshotObj.hpp>
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#include <QElapsedTimer>
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#include <QObject>
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#include <QPixmap>
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#include <QPointer>
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#include <QTimer>
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#include <deque>
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#include <functional>
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#include <unordered_map>
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class ThumbnailItem;
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class ThumbnailView;
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class ThumbnailManager : public QObject {
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Q_OBJECT
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std::vector<OBSSignal> signalHandlers;
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static void obsSourceRemoved(void *data, calldata_t *params);
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struct ThumbnailCache {
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size_t maxSize;
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using CacheEntry = std::pair<std::string, QPixmap>;
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std::list<CacheEntry> cacheList;
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std::unordered_map<std::string, std::list<CacheEntry>::iterator> cacheMap;
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explicit ThumbnailCache(size_t maxSize) : maxSize(maxSize) {}
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void put(const std::string &key, const QPixmap &value);
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std::optional<QPixmap> get(const std::string &key);
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};
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std::deque<std::string> priorityQueue;
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std::deque<std::string> updateQueue;
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std::unordered_map<std::string, ThumbnailItem *> thumbnailList;
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static constexpr int kMaxThumbnails = 64;
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ThumbnailCache thumbnailCache{kMaxThumbnails};
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QTimer updateTimer;
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QElapsedTimer elapsedTimer;
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public:
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explicit ThumbnailManager(QObject *parent = nullptr);
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~ThumbnailManager() = default;
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ThumbnailView *createView(QWidget *parent, obs_source_t *source);
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std::optional<QPixmap> getCachedPixmap(const std::string &uuid);
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private:
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Q_DISABLE_COPY_MOVE(ThumbnailManager);
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void updateNextItem(size_t cycleDepth = 0);
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void removeIdFromQueues(const std::string &uuid);
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void updateTickInterval(int newInterval);
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void createThumbnailItem(const std::string &uuid);
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ThumbnailItem *getThumbnailItem(const std::string &uuid);
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private slots:
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void updateTick();
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void addToPriorityQueue(const std::string &uuid, bool immediate = false);
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void addItemToCache(std::string &uuid, QPixmap &pixmap);
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void deleteItem(ThumbnailItem *item);
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void deleteItemById(const std::string &uuid);
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};
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