SkipParsingExports serialization flag

atenfyr · Dec 10, 2024 · fa03826 · fa03826
1 parent ff22022
commit fa03826
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Showing 3 changed files with 20 additions and 8 deletions.
diff --git a/UAssetAPI/IO/ZenAsset.cs b/UAssetAPI/IO/ZenAsset.cs
@@ -396,7 +396,7 @@ public override void Read(AssetBinaryReader reader, int[] manualSkips = null, in
                     switch (entry.CommandType)
                     {
                         case EExportCommandType.ExportCommandType_Serialize:
-                            ConvertExportToChildExportAndRead(reader, (int)entry.LocalExportIndex);
+                            ParseExport(reader, (int)entry.LocalExportIndex);
                             break;
                     }
                 }

diff --git a/UAssetAPI/UAsset.cs b/UAssetAPI/UAsset.cs
@@ -39,7 +39,12 @@ public enum CustomSerializationFlags : int
         /// <summary>
         /// Skip loading other assets referenced in preload dependencies. You may wish to set this flag when possible in multi-threading applications, since preload dependency loading could lead to file handle race conditions.
         /// </summary>
-        SkipPreloadDependencyLoading = 4
+        SkipPreloadDependencyLoading = 4,
+
+        /// <summary>
+        /// Skip parsing exports at read time. Entries in the export map will still be converted to their respective sub-types. You can manually parse exports with the <see cref="UnrealPackage.ParseExport(AssetBinaryReader, int)"/> method.
+        /// </summary>
+        SkipParsingExports = 8
     }
 
 
@@ -1052,7 +1057,7 @@ public override void Read(AssetBinaryReader reader, int[] manualSkips = null, in
                 }
             }
 
-            if (reader.LoadUexp)
+            if (reader.LoadUexp && !CustomSerializationFlags.HasFlag(CustomSerializationFlags.SkipParsingExports))
             {
                 // load dependencies, if needed and available
                 Dictionary<int, IList<int>> depsMap = new Dictionary<int, IList<int>>();
@@ -1101,7 +1106,7 @@ public override void Read(AssetBinaryReader reader, int[] manualSkips = null, in
                             continue;
                         }
 
-                        ConvertExportToChildExportAndRead(reader, i);
+                        ParseExport(reader, i);
                     }
 
                     // catch any stragglers
@@ -1117,13 +1122,13 @@ public override void Read(AssetBinaryReader reader, int[] manualSkips = null, in
                             continue;
                         }
 
-                        ConvertExportToChildExportAndRead(reader, i);
+                        ParseExport(reader, i);
                     }
                 }
             }
             else
             {
-                // skip loading dependencies & parsing export data if we don't load uexp
+                // skip loading dependencies & parsing export data if we don't load uexp/exports
                 // convert all exports as appropriate, but do no further reading
                 for (int i = 0; i < Exports.Count; i++)
                 {
@@ -1133,7 +1138,7 @@ public override void Read(AssetBinaryReader reader, int[] manualSkips = null, in
                         continue;
                     }
 
-                    ConvertExportToChildExportAndRead(reader, i, false);
+                    ParseExport(reader, i, false);
                 }
             }
 

diff --git a/UAssetAPI/UnrealPackage.cs b/UAssetAPI/UnrealPackage.cs
@@ -722,7 +722,14 @@ internal string InternalAssetPath
                 _internalAssetPath = value;
             }
         }
-        protected void ConvertExportToChildExportAndRead(AssetBinaryReader reader, int i, bool read = true)
+
+        /// <summary>
+        /// Read an export from disk.
+        /// </summary>
+        /// <param name="reader">The binary reader.</param>
+        /// <param name="i">The index of the export in the export map to read.</param>
+        /// <param name="read">Whether or not to serialize the body of the export. If false, simply convert to the respective sub-type.</param>
+        public void ParseExport(AssetBinaryReader reader, int i, bool read = true)
         {
 #pragma warning disable CS0168 // Variable is declared but never used
             try