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Code Issues Projects Releases Wiki Activity

(utage): recognize jpeg images (#150)

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This commit is contained in:
morkt 2018-02-26 01:27:25 +04:00
parent 7405e0056e
commit e48026967b
1 changed files with 24 additions and 2 deletions
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26
ArcFormats/Unity/Utage/ImageUTAGE.cs
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@ -29,6 +29,11 @@ using System.Text;
namespace GameRes.Formats.Unity.Utage
{
internal class UtageMetaData : ImageMetaData
{
public ImageFormat UFormat;
}
[Export(typeof(ImageFormat))]
public class UtageFormat : ImageFormat
{
@ -36,18 +41,35 @@ namespace GameRes.Formats.Unity.Utage
public override string Description { get { return "Utage engine encrypted image"; } }
public override uint Signature { get { return 0x323E3EC0; } }
public UtageFormat ()
{
Signatures = new uint[] { 0x323E3EC0, 0 };
}
public static readonly byte[] KnownKey = Encoding.UTF8.GetBytes ("InputOriginalKey");
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
using (var input = OpenEncryptedStream (file, KnownKey))
return Png.ReadMetaData (input);
{
ImageFormat format = file.Signature == 0x323E3EC0 ? Png : Jpeg;
var info = format.ReadMetaData (input);
if (null == info)
return null;
return new UtageMetaData {
Width = info.Width, Height = info.Height,
OffsetX = info.OffsetX, OffsetY = info.OffsetY,
BPP = info.BPP,
UFormat = format,
};
}
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var meta = (UtageMetaData)info;
using (var input = OpenEncryptedStream (file, KnownKey))
return Png.Read (input, info);
return meta.UFormat.Read (input, info);
}
internal IBinaryStream OpenEncryptedStream (IBinaryStream file, byte[] key)