public override ArcFile TryOpen(ArcView file)
{
uint signature = file.View.ReadUInt32(0);
if (0x53474d != (signature & 0xffffff)) // 'MGS'
{
return(null);
}
int count = file.View.ReadInt16(0x20);
if (count <= 0)
{
return(null);
}
int flag = file.View.ReadUInt16(3);
var dir = new List <Entry> (count);
int index_offset = 0x22;
byte[] name_buf = new byte[16];
for (uint i = 0; i < count; ++i)
{
ushort channels = file.View.ReadUInt16(index_offset + 1);
uint rate = file.View.ReadUInt32(index_offset + 3);
ushort bits = file.View.ReadUInt16(index_offset + 7);
int name_size = file.View.ReadByte(index_offset + 9);
if (0 == name_size)
{
return(null);
}
if (name_size > name_buf.Length)
{
Array.Resize(ref name_buf, name_size);
}
file.View.Read(index_offset + 10, name_buf, 0, (uint)name_size);
if (100 == flag)
{
MgdOpener.Decrypt(name_buf, 0, name_size);
}
index_offset += 10 + name_size;
var entry = new MgsEntry
{
Name = Encodings.cp932.GetString(name_buf, 0, name_size) + ".wav",
Type = "audio",
Size = file.View.ReadUInt32(index_offset),
Offset = file.View.ReadUInt32(index_offset + 4),
Channels = channels,
SamplesPerSecond = rate,
BitsPerSample = bits,
};
if (!entry.CheckPlacement(file.MaxOffset))
{
return(null);
}
dir.Add(entry);
index_offset += 8;
}
return(new ArcFile(file, this, dir));
}
public override ArcFile TryOpen(ArcView file)
{
if (!file.View.AsciiEqual(0, "MGS"))
{
return(null);
}
int count = file.View.ReadInt16(0x20);
if (!IsSaneCount(count))
{
return(null);
}
int flag = file.View.ReadUInt16(3);
var dir = new List <Entry> (count);
int index_offset = 0x22;
byte[] name_buf = new byte[16];
for (int i = 0; i < count; ++i)
{
byte format = file.View.ReadByte(index_offset);
int name_size = file.View.ReadByte(index_offset + 9);
if (0 == name_size)
{
return(null);
}
if (name_size > name_buf.Length)
{
Array.Resize(ref name_buf, name_size);
}
file.View.Read(index_offset + 10, name_buf, 0, (uint)name_size);
if (100 == flag)
{
MgdOpener.Decrypt(name_buf, 0, name_size);
}
var name = Encodings.cp932.GetString(name_buf, 0, name_size);
name = Path.ChangeExtension(name, GetExtFromFormatId(format));
var entry = FormatCatalog.Instance.Create <MgsEntry> (name);
entry.Format = format;
if (0 == format)
{
entry.Channels = file.View.ReadUInt16(index_offset + 1);
entry.SamplesPerSecond = file.View.ReadUInt32(index_offset + 3);
entry.BitsPerSample = file.View.ReadUInt16(index_offset + 7);
}
index_offset += 10 + name_size;
entry.Size = file.View.ReadUInt32(index_offset);
entry.Offset = file.View.ReadUInt32(index_offset + 4);
if (!entry.CheckPlacement(file.MaxOffset))
{
return(null);
}
dir.Add(entry);
index_offset += 8;
}
return(new ArcFile(file, this, dir));
}
