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Support padding after assets

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Resolves #1932
This commit is contained in:
ds5678 2025-09-18 14:32:41 -07:00
parent 3fdd215f35
commit 1cceb28bc1
1 changed files with 20 additions and 3 deletions
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23
Source/AssetRipper.Import/AssetCreation/GameAssetFactory.cs
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@ -137,7 +137,7 @@ public sealed class GameAssetFactory : AssetFactoryBase
return unreadable;
}
private static IUnityObjectBase TryReadNormalObject(AssetInfo assetInfo, ReadOnlyArraySegment<byte> assetData, UnityVersion version, out string? error)
private static IUnityObjectBase TryReadNormalObject(AssetInfo assetInfo, ReadOnlySpan<byte> assetData, UnityVersion version, out string? error)
{
IUnityObjectBase? asset = CreateAsset(assetInfo, version);
if (asset is null)
@ -151,9 +151,14 @@ public sealed class GameAssetFactory : AssetFactoryBase
asset.Read(ref reader);
if (reader.Position != reader.Length)
{
//Some Chinese Unity versions have extra fields appended to the global type trees.
if (reader.Length - reader.Position == 24 && asset is ITexture2D texture)
if (IsAllZero(assetData[reader.Position..]))
{
//Assume padding.
error = null;
}
else if (reader.Length - reader.Position == 24 && asset is ITexture2D texture)
{
//Some Chinese Unity versions have extra fields appended to the global type trees.
ReadExtraTextureFields(texture, ref reader);
error = null;
}
@ -172,6 +177,18 @@ public sealed class GameAssetFactory : AssetFactoryBase
error = MakeError_ReadException(asset, ex);
}
return asset;
static bool IsAllZero(ReadOnlySpan<byte> span)
{
foreach (byte b in span)
{
if (b != 0)
{
return false;
}
}
return true;
}
}
private static IUnityObjectBase? CreateAsset(AssetInfo assetInfo, UnityVersion version)