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Allocation-safe asset reading

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Try to not pre-allocate memory during asset reading
This commit is contained in:
VaDiM
2025-07-24 04:06:33 +03:00
parent 925f5c12a3
commit 35b24990c6
40 changed files with 617 additions and 706 deletions
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AssetStudio/SerializedFile.cs
+15 -15
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@@ -112,8 +112,8 @@ namespace AssetStudio
// Read Types
int typeCount = reader.ReadInt32();
m_Types = new List<SerializedType>(typeCount);
for (int i = 0; i < typeCount; i++)
m_Types = new List<SerializedType>();
for (var i = 0; i < typeCount; i++)
{
m_Types.Add(ReadSerializedType(false));
}
@@ -125,10 +125,10 @@ namespace AssetStudio
// Read Objects
int objectCount = reader.ReadInt32();
m_Objects = new List<ObjectInfo>(objectCount);
Objects = new List<Object>(objectCount);
ObjectsDic = new Dictionary<long, Object>(objectCount);
for (int i = 0; i < objectCount; i++)
m_Objects = new List<ObjectInfo>();
Objects = new List<Object>();
ObjectsDic = new Dictionary<long, Object>();
for (var i = 0; i < objectCount; i++)
{
var objectInfo = new ObjectInfo();
if (bigIDEnabled != 0)
@@ -184,8 +184,8 @@ namespace AssetStudio
if (header.m_Version >= SerializedFileFormatVersion.HasScriptTypeIndex)
{
int scriptCount = reader.ReadInt32();
m_ScriptTypes = new List<LocalSerializedObjectIdentifier>(scriptCount);
for (int i = 0; i < scriptCount; i++)
m_ScriptTypes = new List<LocalSerializedObjectIdentifier>();
for (var i = 0; i < scriptCount; i++)
{
var m_ScriptType = new LocalSerializedObjectIdentifier();
m_ScriptType.localSerializedFileIndex = reader.ReadInt32();
@@ -203,8 +203,8 @@ namespace AssetStudio
}
int externalsCount = reader.ReadInt32();
m_Externals = new List<FileIdentifier>(externalsCount);
for (int i = 0; i < externalsCount; i++)
m_Externals = new List<FileIdentifier>();
for (var i = 0; i < externalsCount; i++)
{
var m_External = new FileIdentifier();
if (header.m_Version >= SerializedFileFormatVersion.Unknown_6)
@@ -224,8 +224,8 @@ namespace AssetStudio
if (header.m_Version >= SerializedFileFormatVersion.SupportsRefObject)
{
int refTypesCount = reader.ReadInt32();
m_RefTypes = new List<SerializedType>(refTypesCount);
for (int i = 0; i < refTypesCount; i++)
m_RefTypes = new List<SerializedType>();
for (var i = 0; i < refTypesCount; i++)
{
m_RefTypes.Add(ReadSerializedType(true));
}
@@ -322,7 +322,7 @@ namespace AssetStudio
}
int childrenCount = reader.ReadInt32();
for (int i = 0; i < childrenCount; i++)
for (var i = 0; i < childrenCount; i++)
{
ReadTypeTree(m_Type, level + 1);
}
@@ -332,7 +332,7 @@ namespace AssetStudio
{
int numberOfNodes = reader.ReadInt32();
int stringBufferSize = reader.ReadInt32();
for (int i = 0; i < numberOfNodes; i++)
for (var i = 0; i < numberOfNodes; i++)
{
var typeTreeNode = new TypeTreeNode();
m_Type.m_Nodes.Add(typeTreeNode);
@@ -353,7 +353,7 @@ namespace AssetStudio
using (var stringBufferReader = new BinaryReader(new MemoryStream(m_Type.m_StringBuffer)))
{
for (int i = 0; i < numberOfNodes; i++)
for (var i = 0; i < numberOfNodes; i++)
{
var m_Node = m_Type.m_Nodes[i];
m_Node.m_Type = ReadString(stringBufferReader, m_Node.m_TypeStrOffset);