105 lines
3.0 KiB
C#
105 lines
3.0 KiB
C#
using Hi.Disp;
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using Hi.Geom;
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using Hi.Native;
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using System.Collections.Concurrent;
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namespace Hi.Webapi.Services
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{
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/// <summary>
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/// Singleton Service for managing <see cref="DispEngine"/>.
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/// </summary>
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public class RenderingService : IDisposable
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{
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/// <summary>
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/// Engine Dictionary.
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/// Key is sessionID.
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/// </summary>
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public ConcurrentDictionary<string, DispEngine> EngineDictionary { get; } = new();
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ILogger<RenderingService> Logger { get; }
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private bool disposedValue;
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public RenderingService(ILogger<RenderingService> logger)
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{
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Logger = logger;
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}
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/// <summary>
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/// 創建或獲取一個 DispEngine 實例
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/// </summary>
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public DispEngine GetOrCreateEngine(string sessionId)
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{
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return EngineDictionary.GetOrAdd(sessionId, id =>
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{
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Logger.LogInformation($"創建新的 DispEngine，SessionId: {id}");
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var engine = new DispEngine();
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engine.BackgroundColor = new Vec3d(0.1, 0.1, 0.5);
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engine.BackgroundOpacity = 0.1;
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return engine;
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});
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}
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/// <summary>
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/// 移除指定的 DispEngine
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/// </summary>
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public bool RemoveEngine(string sessionId)
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{
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if (EngineDictionary.TryRemove(sessionId, out var engine))
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{
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Logger.LogInformation($"移除 DispEngine，SessionId: {sessionId}");
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try
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{
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// 停止渲染
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engine.IsVisible = false;
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// 釋放資源
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engine.Dispose();
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}
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catch (Exception ex)
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{
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Logger.LogError(ex, $"清理 DispEngine 時發生錯誤，SessionId: {sessionId}");
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}
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return true;
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}
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return false;
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}
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/// <summary>
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/// 獲取當前活動的引擎數量
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/// </summary>
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public int GetActiveEngineCount() => EngineDictionary.Count;
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/// <inheritdoc/>
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protected virtual void Dispose(bool disposing)
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{
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if (!disposedValue)
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{
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if (disposing)
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{
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foreach (var kvp in EngineDictionary)
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{
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try
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{
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kvp.Value.IsVisible = false;
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kvp.Value.Dispose();
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}
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catch (Exception ex)
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{
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Logger.LogError(ex, $"Dispose 時清理引擎錯誤，SessionId: {kvp.Key}");
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}
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}
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EngineDictionary.Clear();
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}
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disposedValue = true;
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}
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}
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/// <inheritdoc/>
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public void Dispose()
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{
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Dispose(disposing: true);
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GC.SuppressFinalize(this);
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}
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}
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} |