更新HybirdCLR Procedure

更新HybirdCLR Procedure

Assets/GameMain/Scripts/GameProcedure/ProcedureCodeInit.cs

@@ -0,0 +1,115 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using HybridCLR;
+using UnityEngine;
+
+namespace TEngine.Runtime
+{
+    /// <summary>
+    /// 流程加载器 - 代码初始化
+    /// </summary>
+    public class ProcedureCodeInit : ProcedureBase
+    {
+        
+        public static List<string> AOTMetaAssemblyNames { get; } = new List<string>()
+        {
+            "mscorlib.dll",
+            "System.dll",
+            "System.Core.dll",
+        };
+        
+        /// <summary>
+        /// 为aot assembly加载原始metadata， 这个代码放aot或者热更新都行。
+        /// 一旦加载后，如果AOT泛型函数对应native实现不存在，则自动替换为解释模式执行
+        /// </summary>
+        private static void LoadMetadataForAOTAssemblies()
+        {
+            // 可以加载任意aot assembly的对应的dll。但要求dll必须与unity build过程中生成的裁剪后的dll一致，而不能直接使用原始dll。
+            // 我们在BuildProcessors里添加了处理代码，这些裁剪后的dll在打包时自动被复制到 {项目目录}/HybridCLRData/AssembliesPostIl2CppStrip/{Target} 目录。
+
+            // 注意，补充元数据是给AOT dll补充元数据，而不是给热更新dll补充元数据。
+            // 热更新dll不缺元数据，不需要补充，如果调用LoadMetadataForAOTAssembly会返回错误
+            foreach (var aotDllName in AOTMetaAssemblyNames)
+            {
+                byte[] dllBytes = TResources.Load<TextAsset>(aotDllName).bytes;
+                if (dllBytes == null)
+                {
+                    Log.Fatal($"{aotDllName} is null");
+                    continue;
+                }
+                // 加载assembly对应的dll，会自动为它hook。一旦aot泛型函数的native函数不存在，用解释器版本代码
+                LoadImageErrorCode err = RuntimeApi.LoadMetadataForAOTAssembly(dllBytes);
+                Log.Info($"LoadMetadataForAOTAssembly:{aotDllName}. ret:{err}");
+            }
+        }
+        
+        /// <summary>
+        /// 是否需要加载热更新DLL
+        /// </summary>
+        public bool NeedLoadDll => ResourceComponent.Instance.ResourceMode == ResourceMode.Updatable || ResourceComponent.Instance.ResourceMode == ResourceMode.UpdatableWhilePlaying;
+
+        private IFsm<IProcedureManager> m_procedureOwner;
+
+        protected override void OnEnter(IFsm<IProcedureManager> procedureOwner)
+        {
+            base.OnEnter(procedureOwner);
+
+            m_procedureOwner = procedureOwner;
+
+            if (!NeedLoadDll)
+            {
+                ChangeState<ProcedureStartGame>(procedureOwner);
+                return;
+            }
+
+            LoadMetadataForAOTAssemblies();
+
+#if UNITY_EDITOR
+            Assembly hotfixAssembly = System.AppDomain.CurrentDomain.GetAssemblies().First(assembly => assembly.GetName().Name == "Assembly-CSharp");
+            StartHotfix(hotfixAssembly);
+#else
+            TResources.LoadAsync<TextAsset>("Dll/HotFix.dll.bytes", (data =>
+            {
+                if (data == null)
+                {
+                    OnLoadAssetFail();
+                    return;
+                }
+                var obj = data as TextAsset;
+
+                if (obj == null)
+                {
+                    OnLoadAssetFail();
+                    return;
+                }
+                else
+                {
+                    OnLoadAssetSuccess(obj);
+                }
+            }));
+#endif
+        }
+
+        private void OnLoadAssetSuccess(TextAsset asset)
+        {
+            TextAsset dll = (TextAsset)asset;
+            Assembly hotfixAssembly =  System.Reflection.Assembly.Load(dll.bytes);
+            Log.Info("Load hotfix dll OK.");
+            StartHotfix(hotfixAssembly);
+        }
+
+        private void OnLoadAssetFail()
+        {
+            Log.Error("Load hotfix dll failed. ");
+        }
+
+        private void StartHotfix(Assembly hotfixAssembly)
+        {
+            var hotfixEntry = hotfixAssembly.GetType("HotFix.GameHotfixEntry");
+            var start = hotfixEntry.GetMethod("Start");
+            start?.Invoke(null, null);
+            ChangeState<ProcedureStartGame>(m_procedureOwner);
+        }
+    }
+}