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(vav): recognize archives version 100.

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This commit is contained in:
morkt 2018-12-19 03:19:18 +04:00
parent 19b0b95dce
commit 479fd34ca3
1 changed files with 36 additions and 17 deletions
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53
ArcFormats/FrontWing/ArcVAV.cs
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@ -35,6 +35,17 @@ namespace GameRes.Formats.FrontWing
public int Compression; public int Compression;
} }
internal class VavArchive : ArcFile
{
public int Version;
public VavArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, int version)
: base (arc, impl, dir)
{
Version = version;
}
}
[Export(typeof(ArchiveFormat))] [Export(typeof(ArchiveFormat))]
public class PakOpener : ArchiveFormat public class PakOpener : ArchiveFormat
{ {
@ -47,28 +58,33 @@ namespace GameRes.Formats.FrontWing
public override ArcFile TryOpen (ArcView file) public override ArcFile TryOpen (ArcView file)
{ {
int version = file.View.ReadInt32 (4); int version = file.View.ReadInt32 (4);
if (version != 200 && version != 201) if (version != 100 && version != 200 && version != 201)
return null; return null;
int count = file.View.ReadInt32 (8); int count = file.View.ReadInt32 (8);
if (!IsSaneCount (count)) if (!IsSaneCount (count))
return null; return null;
bool is_voice = Path.GetFileNameWithoutExtension (file.Name).Equals ("voice", StringComparison.OrdinalIgnoreCase);
uint index_offset = file.View.ReadUInt32 (0xC); uint index_offset = file.View.ReadUInt32 (0xC);
uint name_size = version < 200 ? 0x10u : 0x20u;
var dir = new List<Entry> (count); var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i) for (int i = 0; i < count; ++i)
{ {
var name = file.View.ReadString (index_offset, 0x20); var name = file.View.ReadString (index_offset, name_size);
var entry = FormatCatalog.Instance.Create<VavEntry> (name); var entry = Create<VavEntry> (name);
entry.Size = file.View.ReadUInt32 (index_offset+0x20); index_offset += name_size;
entry.UnpackedSize = file.View.ReadUInt32 (index_offset+0x24); entry.Size = file.View.ReadUInt32 (index_offset);
entry.Offset = file.View.ReadUInt32 (index_offset+0x28); entry.UnpackedSize = file.View.ReadUInt32 (index_offset+4);
entry.Offset = file.View.ReadUInt32 (index_offset+8);
if (!entry.CheckPlacement (file.MaxOffset)) if (!entry.CheckPlacement (file.MaxOffset))
return null; return null;
entry.Compression = file.View.ReadInt32 (index_offset+0x2C); entry.Compression = file.View.ReadInt32 (index_offset+0xC);
entry.IsPacked = (entry.Compression & 0x90) != 0; entry.IsPacked = (entry.Compression & 0x90) != 0;
if (is_voice)
entry.Type = "audio";
dir.Add (entry); dir.Add (entry);
index_offset += 0x38; index_offset += 0x18;
} }
return new ArcFile (file, this, dir); return new VavArchive (file, this, dir, version);
} }
public override Stream OpenEntry (ArcFile arc, Entry entry) public override Stream OpenEntry (ArcFile arc, Entry entry)
@ -76,6 +92,8 @@ namespace GameRes.Formats.FrontWing
var vent = entry as VavEntry; var vent = entry as VavEntry;
if (null == vent) if (null == vent)
return base.OpenEntry (arc, entry); return base.OpenEntry (arc, entry);
var varc = arc as VavArchive;
bool old_version = varc != null && varc.Version < 200;
var data = arc.File.View.ReadBytes (entry.Offset, entry.Size); var data = arc.File.View.ReadBytes (entry.Offset, entry.Size);
int data_length = data.Length; int data_length = data.Length;
if ((vent.Compression & 0x80) != 0) if ((vent.Compression & 0x80) != 0)
@ -90,22 +108,23 @@ namespace GameRes.Formats.FrontWing
UnpackRle (data, data_length, output); UnpackRle (data, data_length, output);
data = output; data = output;
} }
DecryptEntry (data, vent.Compression & 0xF); DecryptEntry (data, vent.Compression & 0xF, old_version);
return new BinMemoryStream (data); return new BinMemoryStream (data);
} }
void DecryptEntry (byte[] data, int start) void DecryptEntry (byte[] data, int start, bool old_version = false)
{ {
if (0 == start) if (start > 0)
{
for (int i = 0; i < data.Length; ++i)
data[i] ^= 0x55;
}
else
{ {
for (int i = start; i < data.Length; ++i) for (int i = start; i < data.Length; ++i)
data[i] ^= data[i-start]; data[i] ^= data[i-start];
} }
else
{
int data_length = old_version ? 1 : data.Length;
for (int i = 0; i < data_length; ++i)
data[i] ^= 0x55;
}
} }
int UnpackRle (byte[] input, int input_length, byte[] output) int UnpackRle (byte[] input, int input_length, byte[] output)