static protected void DetectFileTypes(ArcView file, List <Entry> dir)
{
byte[] signature_buffer = new byte[4];
foreach (PackedEntry entry in dir)
{
uint packed_size = file.View.ReadUInt32(entry.Offset);
uint unpacked_size = file.View.ReadUInt32(entry.Offset + 4);
if (0 == packed_size)
{
packed_size = unpacked_size;
}
entry.IsPacked = packed_size != unpacked_size;
entry.Size = packed_size;
entry.UnpackedSize = unpacked_size;
entry.Offset += 8;
uint signature;
if (entry.IsPacked)
{
using (var input = file.CreateStream(entry.Offset, Math.Min(packed_size, 0x20u)))
using (var reader = new ShsCompression(input))
{
reader.Unpack(signature_buffer);
signature = LittleEndian.ToUInt32(signature_buffer, 0);
}
}
else
{
signature = file.View.ReadUInt32(entry.Offset);
}
if (0 != signature)
{
IResource res;
if (0x4D42 == (signature & 0xFFFF))
{
res = ImageFormat.Bmp;
}
else if (0x020000 == signature || 0x0A0000 == signature)
{
res = ImageFormat.Tga;
}
else
{
res = FormatCatalog.Instance.LookupSignature(signature).FirstOrDefault();
}
if (res != null)
{
entry.Type = res.Type;
var ext = res.Extensions.FirstOrDefault();
if (!string.IsNullOrEmpty(ext))
{
entry.Name = Path.ChangeExtension(entry.Name, ext);
}
}
}
}
}
static protected void DetectFileTypes(ArcView file, List <Entry> dir)
{
byte[] signature_buffer = new byte[4];
foreach (PackedEntry entry in dir)
{
uint packed_size = file.View.ReadUInt32(entry.Offset);
uint unpacked_size = file.View.ReadUInt32(entry.Offset + 4);
entry.IsPacked = 0 != packed_size;
if (!entry.IsPacked)
{
packed_size = unpacked_size;
}
entry.Size = packed_size;
entry.UnpackedSize = unpacked_size;
entry.Offset += 8;
uint signature;
if (entry.IsPacked)
{
using (var input = file.CreateStream(entry.Offset, Math.Min(packed_size, 0x20u)))
using (var reader = new ShsCompression(input))
{
reader.Unpack(signature_buffer);
signature = LittleEndian.ToUInt32(signature_buffer, 0);
}
}
else
{
signature = file.View.ReadUInt32(entry.Offset);
}
if (0 != signature)
{
IResource res;
if (0x020000 == signature || 0x0A0000 == signature)
{
res = ImageFormat.Tga;
}
else
{
res = AutoEntry.DetectFileType(signature);
}
if (res != null)
{
entry.ChangeType(res);
}
}
}
}
public override Stream OpenEntry(ArcFile arc, Entry entry)
{
var input = arc.File.CreateStream(entry.Offset, entry.Size, entry.Name);
var pent = entry as PackedEntry;
if (null == pent || !pent.IsPacked)
{
return(input);
}
var data = new byte[pent.UnpackedSize];
using (var reader = new ShsCompression(input))
{
reader.Unpack(data);
return(new BinMemoryStream(data, entry.Name));
}
}
public override Stream OpenEntry(ArcFile arc, Entry entry)
{
var input = base.OpenEntry(arc, entry);
var pent = entry as PackedEntry;
if (null == pent || !pent.IsPacked)
{
return(input);
}
var data = new byte[pent.UnpackedSize];
using (var reader = new ShsCompression(input))
{
reader.Unpack(data);
return(new MemoryStream(data));
}
}
public override Stream OpenEntry(ArcFile arc, Entry entry)
{
var input = base.OpenEntry (arc, entry);
var pent = entry as PackedEntry;
if (null == pent || !pent.IsPacked)
return input;
var data = new byte[pent.UnpackedSize];
using (var reader = new ShsCompression (input))
{
reader.Unpack (data);
return new MemoryStream (data);
}
}
protected static void DetectFileTypes(ArcView file, List<Entry> dir)
{
byte[] signature_buffer = new byte[4];
foreach (PackedEntry entry in dir)
{
uint packed_size = file.View.ReadUInt32 (entry.Offset);
uint unpacked_size = file.View.ReadUInt32 (entry.Offset+4);
if (0 == packed_size)
packed_size = unpacked_size;
entry.IsPacked = packed_size != unpacked_size;
entry.Size = packed_size;
entry.UnpackedSize = unpacked_size;
entry.Offset += 8;
uint signature;
if (entry.IsPacked)
{
using (var input = file.CreateStream (entry.Offset, Math.Min (packed_size, 0x20u)))
using (var reader = new ShsCompression (input))
{
reader.Unpack (signature_buffer);
signature = LittleEndian.ToUInt32 (signature_buffer, 0);
}
}
else
{
signature = file.View.ReadUInt32 (entry.Offset);
}
if (0 != signature)
{
IResource res;
if (0x4D42 == (signature & 0xFFFF))
res = ImageFormat.Bmp;
else if (0x020000 == signature || 0x0A0000 == signature)
res = ImageFormat.Tga;
else
res = FormatCatalog.Instance.LookupSignature (signature).FirstOrDefault();
if (res != null)
{
entry.Type = res.Type;
var ext = res.Extensions.FirstOrDefault();
if (!string.IsNullOrEmpty (ext))
entry.Name = Path.ChangeExtension (entry.Name, ext);
}
}
}
}
