157 lines
4.5 KiB
C#
157 lines
4.5 KiB
C#
using System.Collections.Generic;
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using UnityEngine;
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using FairyGUI;
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namespace RedHotRoast
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{
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public class GLoaderPool
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{
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private static GLoaderPool _instance;
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public static GLoaderPool Instance => _instance ??= new GLoaderPool();
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private readonly Queue<GLoader> pool = new Queue<GLoader>();
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private readonly LinkedList<GLoader> inUseLoaders = new LinkedList<GLoader>(); // 维护活跃顺序（LRU）
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private int maxCount = 10; // 最大池子数量
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private int _width = 0;
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private int _height = 0;
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private bool _autoDisposeTexture = true; // 是否自动释放贴图
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private GLoaderPool() { }
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/// <summary>
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/// 初始化 Loader 池
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/// </summary>
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public void Init(GComponent parentObj, int maxPoolCount, int width, int height, bool autoDisposeTexture = true)
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{
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maxCount = maxPoolCount;
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_width = width;
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_height = height;
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_autoDisposeTexture = autoDisposeTexture;
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DisposeAll();
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// 预创建 loader
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for (int i = 0; i < maxCount; i++)
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{
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var loader = CreateLoader();
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pool.Enqueue(loader);
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}
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}
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private GLoader CreateLoader()
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{
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var loader = new GLoader
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{
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fill = FillType.ScaleMatchWidth,
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align = AlignType.Center,
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verticalAlign = VertAlignType.Top,
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visible = false
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};
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loader.SetSize(_width, _height);
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return loader;
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}
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/// <summary>
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/// 从池中获取 Loader
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/// </summary>
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public GLoader GetLoader()
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{
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GLoader loader = null;
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// 如果池子里有，直接取
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if (pool.Count > 0)
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{
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loader = pool.Dequeue();
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}
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else if (inUseLoaders.Count >= maxCount)
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{
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// 如果池满了，回收最久未使用的一个（LRU）
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loader = inUseLoaders.First.Value;
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inUseLoaders.RemoveFirst();
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RecycleLoader(loader);
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Debug.Log($"[LRU回收] 回收并复用一个 Loader");
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}
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else
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{
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// 未达到上限，新建
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loader = CreateLoader();
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}
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// 标记为使用中，放到链表末尾（最近使用）
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inUseLoaders.AddLast(loader);
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loader.visible = true;
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return loader;
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}
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/// <summary>
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/// 归还 Loader
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/// </summary>
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public void ReturnLoader(GLoader loader)
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{
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if (loader == null) return;
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if (inUseLoaders.Contains(loader))
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{
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inUseLoaders.Remove(loader);
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RecycleLoader(loader);
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pool.Enqueue(loader);
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}
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else
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{
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Debug.LogWarning("尝试归还未分配的 GLoader");
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}
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}
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/// <summary>
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/// 回收 loader 的资源
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/// </summary>
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private void RecycleLoader(GLoader loader)
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{
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if (_autoDisposeTexture && loader.texture != null)
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{
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loader.texture.Dispose();
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}
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loader.url = null;
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loader.texture = null;
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loader.visible = false;
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}
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/// <summary>
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/// 更新 Loader 的使用顺序（需要主动调用，避免 LRU 误判）
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/// </summary>
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public void TouchLoader(GLoader loader)
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{
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if (loader == null || !inUseLoaders.Contains(loader)) return;
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inUseLoaders.Remove(loader);
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inUseLoaders.AddLast(loader); // 移到链表末尾，标记为最新使用
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}
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public bool IsFromPool(GLoader loader)
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{
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return inUseLoaders.Contains(loader) || pool.Contains(loader);
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}
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public int GetPoolCount() => pool.Count;
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public int GetInUseCount() => inUseLoaders.Count;
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/// <summary>
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/// 清理全部
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/// </summary>
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public void DisposeAll()
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{
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foreach (var loader in pool)
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{
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loader?.Dispose();
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}
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foreach (var loader in inUseLoaders)
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{
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loader?.Dispose();
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}
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pool.Clear();
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inUseLoaders.Clear();
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}
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}
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}
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