Changed the artists view to use artist images

2024-10-11 19:04:59 +02:00
parent e9f533bb6b
commit 8bdf3b42d0
33 changed files with 439 additions and 311 deletions
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2015 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <atomic>
+#include <shared_mutex>
+#include <unordered_map>
+#include <variant>
+
+#include "database/ArtistId.hpp"
+#include "database/ReleaseId.hpp"
+#include "database/TrackId.hpp"
+#include "image/IEncodedImage.hpp"
+
+namespace lms::cover
+{
+    class ImageCache
+    {
+    public:
+        ImageCache(std::size_t maxCacheSize);
+
+        struct EntryDesc
+        {
+            using VariantType = std::variant<db::ArtistId, db::ReleaseId, db::TrackId>;
+            VariantType id;
+            std::size_t size;
+
+            bool operator==(const EntryDesc& other) const = default;
+        };
+
+        std::size_t getMaxCacheSize() const { return _maxCacheSize; }
+
+        void addImage(const EntryDesc& entryDesc, std::shared_ptr<image::IEncodedImage> image);
+        std::shared_ptr<image::IEncodedImage> getImage(const EntryDesc& entryDesc) const;
+        void flush();
+
+    private:
+        const std::size_t _maxCacheSize;
+
+        mutable std::shared_mutex _mutex;
+
+        struct EntryHasher
+        {
+            std::size_t operator()(const EntryDesc& entry) const
+            {
+                return std::hash<EntryDesc::VariantType>{}(entry.id) ^ std::hash<std::size_t>{}(entry.size);
+            }
+        };
+
+        std::unordered_map<EntryDesc, std::shared_ptr<image::IEncodedImage>, EntryHasher> _cache;
+        std::size_t _cacheSize{};
+        mutable std::atomic<std::size_t> _cacheMisses{};
+        mutable std::atomic<std::size_t> _cacheHits{};
+    };
+} // namespace lms::cover