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Guess entry type by signature.

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Crsky 2022-09-11 04:54:01 +08:00
parent 0f827a9eba
commit a547f0282b
1 changed files with 20 additions and 0 deletions
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20
ArcFormats/KiriKiri/CryptAlgorithms.cs
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@ -103,6 +103,7 @@ namespace GameRes.Formats.KiriKiri
var header = new byte[5];
input.Read (header, 0, 5);
uint signature = header.ToUInt32 (0);
GuessEntryTypeBySignature (entry, signature);
if (0x184D2204 == signature) // LZ4 magic
{
// assume no scripts are compressed using LZ4, return decompressed stream right away
@ -197,6 +198,25 @@ namespace GameRes.Formats.KiriKiri
return output;
}
}
static readonly Dictionary<uint, string> FileTypesMap = new Dictionary<uint, string>
{
{ 0x5367674f, "audio" }, // OGG
{ 0x46464952, "audio" }, // WAV
{ 0x474e5089, "image" }, // PNG
{ 0xe0ffd8ff, "image" }, // JPG
{ 0x30474c54, "image" }, // TLG
{ 0x35474c54, "image" }, // TLG
{ 0x36474c54, "image" }, // TLG
{ 0x35474cab, "image" }, // TLG
{ 0x584d4b4a, "image" }, // TLG
};
internal void GuessEntryTypeBySignature(Entry entry, uint signature)
{
if (FileTypesMap.TryGetValue (signature, out var type))
entry.Type = type;
}
}
[Serializable]