public override ImageMetaData ReadMetaData(Stream stream)
{
uint signature = ~FormatCatalog.ReadSignature(stream);
int bpp;
switch (signature)
{
case 0x4c4c5546: /* fall through */
case 0x45555254: bpp = 24; break;
case 0x48474948: bpp = 16; break;
default: return(null);
}
using (var input = new BinaryReader(stream, Encoding.ASCII, true))
{
uint width = input.ReadUInt16();
uint height = input.ReadUInt16();
return(new ImageMetaData {
Width = width,
Height = height,
BPP = bpp,
});
}
}
public override ArcFile TryOpen(ArcView file)
{
if (!file.Name.HasExtension(".ads"))
{
return(null);
}
var arc_name = Path.GetFileNameWithoutExtension(file.Name);
foreach (var key in KnownKeys.Values)
{
using (var arc = new EncryptedViewStream(file, key))
{
uint signature = FormatCatalog.ReadSignature(arc);
if (2 == signature || 4 == signature || 5 == signature)
{
var dir = ReadIndex(arc, key, arc_name);
if (dir != null)
{
return(new AdsArchive(file, this, dir, key));
}
}
}
}
return(null);
}
public override SoundInput TryOpen(Stream file)
{
uint signature = FormatCatalog.ReadSignature(file);
if (0x80 != (signature & 0xFFFF))
{
return(null);
}
uint header_size = Binary.BigEndian(signature & 0xFFFF0000);
if (header_size < 0x10 || header_size >= file.Length)
{
return(null);
}
var header = new byte[header_size];
if (header.Length != file.Read(header, 0, header.Length))
{
return(null);
}
if (!Binary.AsciiEqual(header, header.Length - 6, "(c)CRI"))
{
return(null);
}
return(new AdxInput(file, header));
}
uint WriteImageEntry(PackedEntry entry, Stream input, Stream output)
{
var grp = s_grp_format.Value;
if (null == grp) // probably never happens
{
throw new FileFormatException("GRP image encoder not available");
}
bool is_grp = grp.Signature == FormatCatalog.ReadSignature(input);
input.Position = 0;
var start = output.Position;
using (var zstream = new ZLibStream(output, CompressionMode.Compress, CompressionLevel.Level9, true))
{
if (is_grp)
{
input.CopyTo(zstream);
}
else
{
var image = ImageFormat.Read(input);
if (null == image)
{
throw new InvalidFormatException(string.Format(arcStrings.MsgInvalidImageFormat, entry.Name));
}
grp.Write(zstream, image);
entry.UnpackedSize = (uint)zstream.TotalIn;
}
}
return((uint)(output.Position - start));
}
public override SoundInput TryOpen(Stream file)
{
uint signature = FormatCatalog.ReadSignature(file) & 0xF0FFFFFF;
if (0x564157 != signature) // 'WAV'
{
return(null);
}
return(new PcmInput(file));
}
public override ImageMetaData ReadMetaData(Stream stream)
{
uint unpacked_size = FormatCatalog.ReadSignature(stream);
if (unpacked_size <= 0x20 || unpacked_size > 0x5000000) // ~83MB
{
return(null);
}
using (var lzss = new LzssStream(stream, LzssMode.Decompress, true))
using (var input = new SeekableStream(lzss))
return(base.ReadMetaData(input));
}
public override ImageMetaData ReadMetaData(Stream stream)
{
var header = new byte[0x10];
if (0x10 != stream.Read(header, 0, 0x10))
{
return(null);
}
int unpacked_size = LittleEndian.ToInt32(header, 8);
using (var alb = new AlbStream(stream, unpacked_size))
using (var file = new SeekableStream(alb))
{
uint signature = FormatCatalog.ReadSignature(file);
file.Position = 0;
ImageFormat format;
if (ImageFormat.Png.Signature == signature)
{
format = ImageFormat.Png;
}
else if (Dds.Value.Signature == signature)
{
format = Dds.Value;
}
else
{
format = ImageFormat.Jpeg;
}
var info = format.ReadMetaData(file);
if (null == info)
{
return(null);
}
return(new AlbMetaData
{
Width = info.Width,
Height = info.Height,
OffsetX = info.OffsetX,
OffsetY = info.OffsetY,
BPP = info.BPP,
Format = format,
Info = info,
UnpackedSize = unpacked_size,
});
}
}
public override ScriptData Read(string name, Stream stream)
{
if (Signature != FormatCatalog.ReadSignature(stream))
{
return(null);
}
uint script_id = Convert.ToUInt32(name, 16);
uint max_offset = (uint)Math.Min(stream.Length, 0xffffffff);
using (var file = new BinaryReader(stream, Encodings.cp932, true))
{
uint script_type = file.ReadUInt32();
var script = new AmiScriptData {
Id = script_id,
Type = script_type
};
uint count = file.ReadUInt32();
for (uint i = 0; i < count; ++i)
{
uint offset = file.ReadUInt32();
if (offset >= max_offset)
{
throw new InvalidFormatException("Invalid offset in script data file");
}
int size = file.ReadInt32();
uint id = file.ReadUInt32();
var header_pos = file.BaseStream.Position;
file.BaseStream.Position = offset;
byte[] line = file.ReadBytes(size);
if (line.Length != size)
{
throw new InvalidFormatException("Premature end of file");
}
string text = Encodings.cp932.GetString(line);
script.TextLines.Add(new ScriptLine {
Id = id, Text = text
});
file.BaseStream.Position = header_pos;
}
return(script);
}
}
public override Stream OpenEntry(ArcFile arc, Entry entry)
{
var input = arc.File.CreateStream(entry.Offset, entry.Size);
if (entry.Size <= 8)
{
return(input);
}
var sign = FormatCatalog.ReadSignature(input);
if (0x32434c5a != sign) // 'ZLC2'
{
input.Position = 0;
return(input);
}
using (input)
using (var reader = new Zlc2Reader(input, (int)entry.Size))
{
reader.Unpack();
return(new MemoryStream(reader.Data));
}
}
} // 'RIFF'
public override ImageMetaData ReadMetaData(Stream stream)
{
// 'RIFF' isn't included into signature to avoid auto-detection of the WAV files as IPH images.
if (0x46464952 != FormatCatalog.ReadSignature(stream)) // 'RIFF'
{
return(null);
}
using (var reader = new ArcView.Reader(stream))
{
if (0x38 != reader.ReadInt32())
{
return(null);
}
var signature = reader.ReadInt32();
if (signature != 0x20485049 && signature != 0x00485049) // 'IPH'
{
return(null);
}
if (0x20746D66 != reader.ReadInt32()) // 'fmt '
{
return(null);
}
reader.BaseStream.Position = 0x38;
if (0x20706D62 != reader.ReadInt32()) // 'bmp '
{
return(null);
}
var info = new IphMetaData();
info.PackedSize = reader.ReadInt32();
info.Width = reader.ReadUInt16();
info.Height = reader.ReadUInt16();
reader.BaseStream.Position = 0x50;
info.BPP = reader.ReadUInt16();
info.IsCompressed = 0 != reader.ReadInt16();
// XXX int16@[0x54] is a transparency color or 0xFFFF if image is not transparent
return(info);
}
}
public override ArcFile TryOpen(ArcView file)
{
if (!file.Name.EndsWith(".ads", StringComparison.InvariantCultureIgnoreCase))
{
return(null);
}
foreach (var key in KnownKeys.Values)
{
using (var arc = new EncryptedViewStream(file, key))
{
uint signature = FormatCatalog.ReadSignature(arc);
if (2 == signature || 4 == signature || 5 == signature)
{
var dir = ReadIndex(arc, key);
if (dir != null)
{
return(new AdsArchive(file, this, dir, key));
}
}
}
}
return(null);
}
public override SoundInput TryOpen(Stream file)
{
uint offset = 4 + Binary.BigEndian(FormatCatalog.ReadSignature(file));
return(base.TryOpen(new StreamRegion(file, offset)));
}