} // 'YGP'
public override ImageMetaData ReadMetaData(Stream stream)
{
stream.Position = 4;
using (var reader = new ArcView.Reader(stream))
{
int mask_pos = reader.ReadUInt16(); // 04
byte type = reader.ReadByte(); // 06
if (type != 1 && type != 2)
{
return(null);
}
var info = new YgpMetaData {
Type = type, BPP = 32
};
info.Flags = reader.ReadByte(); // 07
int header_size = reader.ReadInt32(); // 08
stream.Position = header_size;
info.DataSize = reader.ReadInt32(); // XX+00
info.Width = reader.ReadUInt16(); // XX+04
info.Height = reader.ReadUInt16(); // XX+06
info.DataOffset = header_size + 8;
if (0 != (info.Flags & 4))
{
stream.Position = 0x14;
info.OffsetX = reader.ReadInt16();
info.OffsetY = reader.ReadInt16();
}
return(info);
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
stream.Seek(5, SeekOrigin.Current);
int bpp = stream.ReadByte();
if (24 != bpp && 32 != bpp)
{
throw new NotSupportedException("Not supported CPB image format");
}
using (var input = new ArcView.Reader(stream))
{
int version = input.ReadInt16();
if (1 != version)
{
throw new NotSupportedException("Not supported CPB image version");
}
var info = new CpbMetaData();
info.BPP = bpp;
input.ReadUInt32();
info.Width = input.ReadUInt16();
info.Height = input.ReadUInt16();
info.Channel[0] = input.ReadUInt32(); // Alpha
info.Channel[1] = input.ReadUInt32();
info.Channel[2] = input.ReadUInt32();
info.Channel[3] = input.ReadUInt32();
return(info);
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
stream.Seek(3, SeekOrigin.Current);
using (var input = new ArcView.Reader(stream))
{
int bpp = input.ReadByte();
int x = 0;
int y = 0;
int type = bpp;
int header_size = 8;
if (2 == type)
{
bpp = input.ReadByte();
header_size = 13;
}
else if (1 == type)
{
bpp = input.ReadByte();
x = input.ReadInt16();
y = input.ReadInt16();
header_size = 13;
}
else
{
type = 0;
}
if (8 != bpp && 24 != bpp && 32 != bpp)
{
return(null);
}
uint w = input.ReadUInt16();
uint h = input.ReadUInt16();
if (2 == type)
{
x = input.ReadInt16();
y = input.ReadInt16();
}
return(new ElgMetaData
{
Width = w,
Height = h,
OffsetX = x,
OffsetY = y,
BPP = bpp,
Type = type,
HeaderSize = header_size,
});
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
using (var input = new ArcView.Reader (stream))
{
input.ReadInt32();
var info = new DgcMetaData();
info.Flags = input.ReadUInt32();
info.Width = input.ReadUInt16();
info.Height = input.ReadUInt16();
if (info.Width > 0x7fff || info.Height > 0x7fff)
return null;
info.BPP = 0 == (info.Flags & Reader.FlagAlphaChannel) ? 24 : 32;
return info;
}
}
static WaveFormat ReadFormat(Stream file)
{
var format = new WaveFormat();
using (var input = new ArcView.Reader(file))
{
format.FormatTag = input.ReadUInt16();
format.Channels = input.ReadUInt16();
format.SamplesPerSecond = input.ReadUInt32();
format.AverageBytesPerSecond = input.ReadUInt32();
format.BlockAlign = input.ReadUInt16();
format.BitsPerSample = input.ReadUInt16();
}
return(format);
}
public override ImageMetaData ReadMetaData(Stream stream)
{
stream.Position = 4;
using (var reader = new ArcView.Reader (stream))
{
int mask_pos = reader.ReadUInt16(); // 04
byte type = reader.ReadByte(); // 06
if (type != 1 && type != 2)
return null;
var info = new YgpMetaData { Type = type, BPP = 32 };
info.Flags = reader.ReadByte(); // 07
int header_size = reader.ReadInt32(); // 08
stream.Position = header_size;
info.DataSize = reader.ReadInt32(); // XX+00
info.Width = reader.ReadUInt16(); // XX+04
info.Height = reader.ReadUInt16(); // XX+06
info.DataOffset = header_size+8;
if (0 != (info.Flags & 4))
{
stream.Position = 0x14;
info.OffsetX = reader.ReadInt16();
info.OffsetY = reader.ReadInt16();
}
return info;
}
}
} // 'NGP '
public override ImageMetaData ReadMetaData(Stream stream)
{
stream.Position = 0x12;
using (var reader = new ArcView.Reader(stream))
{
int packed_size = reader.ReadInt32();
uint width = reader.ReadUInt32();
uint height = reader.ReadUInt32();
int bpp = reader.ReadUInt16() * 8;
reader.BaseStream.Position = 0x100;
int unpacked_size = reader.ReadInt32();
if (packed_size <= 0 || unpacked_size <= 0)
{
return(null);
}
return(new NgpMetaData
{
Width = width,
Height = height,
BPP = bpp,
PackedSize = packed_size,
UnpackedSize = unpacked_size,
});
}
}
} // 'DGC'
public override ImageMetaData ReadMetaData(Stream stream)
{
using (var input = new ArcView.Reader(stream))
{
input.ReadInt32();
var info = new DgcMetaData();
info.Flags = input.ReadUInt32();
info.Width = input.ReadUInt16();
info.Height = input.ReadUInt16();
if (info.Width > 0x7fff || info.Height > 0x7fff)
{
return(null);
}
info.BPP = 0 == (info.Flags & Reader.FlagAlphaChannel) ? 24 : 32;
return(info);
}
}
} // 'GYU'
public override ImageMetaData ReadMetaData(Stream stream)
{
using (var reader = new ArcView.Reader(stream))
{
reader.ReadInt32();
return(new GyuMetaData
{
Flags = reader.ReadUInt16(),
CompressionMode = reader.ReadUInt16(),
Key = reader.ReadUInt32(),
BPP = reader.ReadInt32(),
Width = reader.ReadUInt32(),
Height = reader.ReadUInt32(),
DataSize = reader.ReadInt32(),
AlphaSize = reader.ReadInt32(),
PaletteSize = reader.ReadInt32(),
});
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
using (var reader = new ArcView.Reader (stream))
{
reader.ReadInt32();
var info = new AkbMetaData();
info.Width = reader.ReadUInt16();
info.Height = reader.ReadUInt16();
int flags = reader.ReadInt32() & 0xFFFF;
info.BPP = 0 == flags ? 32 : 24;
info.Background = reader.ReadBytes (4);
info.OffsetX = reader.ReadInt32();
info.OffsetY = reader.ReadInt32();
info.InnerWidth = reader.ReadInt32() - info.OffsetX;
info.InnerHeight = reader.ReadInt32() - info.OffsetY;
if (info.InnerWidth > info.Width || info.InnerHeight > info.Height)
return null;
return info;
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
stream.Position = 4;
int bpp = stream.ReadByte();
bool has_palette = stream.ReadByte() != 0;
using (var input = new ArcView.Reader(stream))
{
var info = new Typ1MetaData {
BPP = bpp, HasPalette = has_palette
};
info.Width = input.ReadUInt16();
info.Height = input.ReadUInt16();
input.ReadInt32();
info.Channel[0] = input.ReadUInt32();
info.Channel[1] = input.ReadUInt32();
info.Channel[2] = input.ReadUInt32();
info.Channel[3] = input.ReadUInt32();
return(info);
}
}
} // 'AKB '
public override ImageMetaData ReadMetaData(Stream stream)
{
using (var reader = new ArcView.Reader(stream))
{
reader.ReadInt32();
var info = new AkbMetaData();
info.Width = reader.ReadUInt16();
info.Height = reader.ReadUInt16();
int flags = reader.ReadInt32() & 0xFFFF;
info.BPP = 0 == flags ? 32 : 24;
info.Background = reader.ReadBytes(4);
info.OffsetX = reader.ReadInt32();
info.OffsetY = reader.ReadInt32();
info.InnerWidth = reader.ReadInt32() - info.OffsetX;
info.InnerHeight = reader.ReadInt32() - info.OffsetY;
if (info.InnerWidth > info.Width || info.InnerHeight > info.Height)
{
return(null);
}
return(info);
}
}
} // '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 PcmInput(Stream file) : base(null)
{
file.Position = 4;
using (var input = new ArcView.Reader(file))
{
int src_size = input.ReadInt32();
if (src_size <= 0)
{
throw new InvalidFormatException();
}
int mode = input.ReadInt32();
int extra = (mode >> 8) & 0xff;
mode &= 0xff;
var format = new WaveFormat();
format.FormatTag = input.ReadUInt16();
format.Channels = input.ReadUInt16();
format.SamplesPerSecond = input.ReadUInt32();
format.AverageBytesPerSecond = input.ReadUInt32();
format.BlockAlign = input.ReadUInt16();
format.BitsPerSample = input.ReadUInt16();
this.Format = format;
this.PcmSize = src_size;
if (0 == mode)
{
this.Source = new StreamRegion(file, file.Position, src_size);
}
else if (1 == mode || 3 == mode)
{
var decoder = new PcmDecoder(input, src_size, extra, (XpcmCompression)mode);
this.Source = new MemoryStream(decoder.Unpack(), 0, src_size);
file.Dispose();
}
else
{
throw new NotSupportedException("Not supported Circus PCM audio compression");
}
}
}
} // 'PB3B'
public override ImageMetaData ReadMetaData(Stream stream)
{
stream.Position = 4;
using (var reader = new ArcView.Reader(stream))
{
int input_size = reader.ReadInt32();
stream.Position = 0x18;
int t2 = reader.ReadInt32();
int t1 = reader.ReadUInt16();
uint width = reader.ReadUInt16();
uint height = reader.ReadUInt16();
int bpp = reader.ReadUInt16();
return(new Pb3MetaData
{
Width = width,
Height = height,
BPP = bpp,
Type = t1,
SubType = t2,
InputSize = input_size,
});
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
stream.Position = 4;
using (var reader = new ArcView.Reader (stream))
{
int input_size = reader.ReadInt32();
stream.Position = 0x18;
int t2 = reader.ReadInt32();
int t1 = reader.ReadUInt16();
uint width = reader.ReadUInt16();
uint height = reader.ReadUInt16();
int bpp = reader.ReadUInt16();
return new Pb3MetaData
{
Width = width,
Height = height,
BPP = bpp,
Type = t1,
SubType = t2,
InputSize = input_size,
};
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
int alpha_channel = stream.ReadByte();
int method = stream.ReadByte();
int align1 = stream.ReadByte();
int align2 = stream.ReadByte();
int bpp = stream.ReadByte();
if (alpha_channel < 0 || alpha_channel > 1 || method < 0 || method > 2 ||
align1 < 0 || align1 > 4 || align2 < 0 || align2 > 4 ||
bpp <= 0 || !(bpp <= 16 || 24 == bpp || 32 == bpp))
{
return(null);
}
using (var reader = new ArcView.Reader(stream))
{
int palette_size = reader.ReadInt32();
uint width = reader.ReadUInt16();
uint height = reader.ReadUInt16();
if (0 == palette_size || 0 == width || 0 == height || palette_size >= stream.Length)
{
return(null);
}
return(new GpMetaData
{
Width = width,
Height = height,
BPP = bpp,
HasAlpha = alpha_channel != 0,
Method = method,
ElementSize = align1,
PixelsPerElement = align2,
PaletteSize = palette_size,
});
}
}
public override Stream OpenEntry(ArcFile arc, Entry entry)
{
var pent = entry as PackedEntry;
Stream input = arc.File.CreateStream(entry.Offset, entry.Size);
if (null != pent && pent.IsPacked)
{
Stream unpacked;
using (input)
{
var data = new byte[pent.UnpackedSize];
UnpackEntry(input, data);
unpacked = new MemoryStream(data);
}
input = unpacked;
}
if (input.Length > 4 && input.Length < 0x10000)
{
using (var reader = new ArcView.Reader(input))
{
int unpacked_size = reader.ReadUInt16();
int packed_size = reader.ReadUInt16();
if (packed_size == input.Length - 4)
{
using (input)
{
var data = new byte[unpacked_size];
UnpackLz77(input, data);
return(new MemoryStream(data));
}
}
input.Position = 0;
}
}
return(input);
}
public override ImageMetaData ReadMetaData(Stream stream)
{
using (var reader = new ArcView.Reader(stream))
{
reader.ReadInt32();
var info = new EmMetaData();
info.LzssFrameSize = reader.ReadUInt16();
info.LzssInitPos = reader.ReadUInt16();
info.BPP = reader.ReadUInt16() & 0xFF;
info.Width = reader.ReadUInt16();
info.Height = reader.ReadUInt16();
info.Colors = reader.ReadUInt16();
info.Stride = reader.ReadInt32();
info.OffsetX = reader.ReadInt32();
info.OffsetY = reader.ReadInt32();
info.DataOffset = 40;
return(info);
}
}
byte[] Unpack(Stream stream)
{
using (var input = new ArcView.Reader(stream))
{
uint unpacked_size = input.ReadUInt32();
int remaining = input.ReadInt32() - 9;
var output = new byte[unpacked_size];
byte control_code = input.ReadByte();
int dst = 0;
while (remaining > 0)
{
byte b = input.ReadByte();
--remaining;
if (b != control_code)
{
output[dst++] = b;
continue;
}
b = input.ReadByte();
--remaining;
if (b == control_code)
{
output[dst++] = b;
continue;
}
if (b > control_code)
{
--b;
}
int count = b >> 3;
if (0 != (b & 4))
{
count |= input.ReadByte() << 5;
--remaining;
}
count += 4;
int offset;
switch (b & 3)
{
case 0:
offset = input.ReadByte();
--remaining;
break;
case 1:
offset = input.ReadUInt16();
remaining -= 2;
break;
case 2:
offset = input.ReadUInt16();
offset |= input.ReadByte() << 16;
remaining -= 3;
break;
default:
throw new InvalidFormatException("DX decompression failed");
}
++offset;
Binary.CopyOverlapped(output, dst - offset, dst, count);
dst += count;
}
return(output);
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
stream.Seek (4, SeekOrigin.Current);
int type = stream.ReadByte();
int bpp = stream.ReadByte();
if (24 != bpp && 32 != bpp)
throw new NotSupportedException ("Not supported CPB image format");
using (var input = new ArcView.Reader (stream))
{
int version = input.ReadInt16 ();
if (1 != version && 0 != version)
throw new NotSupportedException ("Not supported CPB image version");
var info = new CpbMetaData {
Type = type,
Version = version,
BPP = bpp,
};
if (1 == version)
{
input.ReadUInt32();
info.Width = input.ReadUInt16();
info.Height = input.ReadUInt16();
info.Channel[0] = input.ReadUInt32();
info.Channel[1] = input.ReadUInt32();
info.Channel[2] = input.ReadUInt32();
info.Channel[3] = input.ReadUInt32();
}
else
{
info.Width = input.ReadUInt16();
info.Height = input.ReadUInt16();
input.ReadUInt32();
info.Channel[0] = input.ReadUInt32();
info.Channel[1] = input.ReadUInt32();
info.Channel[2] = input.ReadUInt32();
info.Channel[3] = input.ReadUInt32();
}
info.DataOffset = (uint)stream.Position;
return info;
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
stream.Seek (3, SeekOrigin.Current);
using (var input = new ArcView.Reader (stream))
{
int bpp = input.ReadByte();
int x = 0;
int y = 0;
int type = bpp;
int header_size = 8;
if (2 == type)
{
bpp = input.ReadByte();
header_size = 13;
}
else if (1 == type)
{
bpp = input.ReadByte();
x = input.ReadInt16();
y = input.ReadInt16();
header_size = 13;
}
else
type = 0;
if (8 != bpp && 24 != bpp && 32 != bpp)
return null;
uint w = input.ReadUInt16();
uint h = input.ReadUInt16();
if (2 == type)
{
x = input.ReadInt16();
y = input.ReadInt16();
}
return new ElgMetaData
{
Width = w,
Height = h,
OffsetX = x,
OffsetY = y,
BPP = bpp,
Type = type,
HeaderSize = header_size,
};
}
}
private void UnpackV1()
{
using (var src = new ArcView.Reader(m_input))
{
byte[] window = new byte[0x10000];
int flag = 0;
int win_pos = 0;
int dst = 0;
while (dst < m_output.Length)
{
flag >>= 1;
if (0 == (flag & 0x100))
{
flag = src.ReadByte() | 0xff00;
}
if (0 != (flag & 1))
{
byte dat = src.ReadByte();
window[win_pos++] = dat;
win_pos &= 0xffff;
m_output[dst++] = dat;
}
else
{
byte control = src.ReadByte();
int count, offset;
if (control >= 0xc0)
{
offset = ((control & 3) << 8) | src.ReadByte();
count = 4 + ((control >> 2) & 0xf);
}
else if (0 != (control & 0x80))
{
offset = control & 0x1f;
count = 2 + ((control >> 5) & 3);
if (0 == offset)
{
offset = src.ReadByte();
}
}
else if (0x7f == control)
{
count = 2 + src.ReadUInt16();
offset = src.ReadUInt16();
}
else
{
offset = src.ReadUInt16();
count = control + 4;
}
offset = win_pos - offset;
for (int k = 0; k < count && dst < m_output.Length; k++)
{
offset &= 0xffff;
byte dat = window[offset++];
window[win_pos++] = dat;
win_pos &= 0xffff;
m_output[dst++] = dat;
}
}
}
}
}
byte[] Unpack(Stream stream)
{
using (var input = new ArcView.Reader (stream))
{
uint unpacked_size = input.ReadUInt32();
int remaining = input.ReadInt32() - 9;
var output = new byte[unpacked_size];
byte control_code = input.ReadByte();
int dst = 0;
while (remaining > 0)
{
byte b = input.ReadByte();
--remaining;
if (b != control_code)
{
output[dst++] = b;
continue;
}
b = input.ReadByte();
--remaining;
if (b == control_code)
{
output[dst++] = b;
continue;
}
if (b > control_code)
--b;
int count = b >> 3;
if (0 != (b & 4))
{
count |= input.ReadByte() << 5;
--remaining;
}
count += 4;
int offset;
switch (b & 3)
{
case 0:
offset = input.ReadByte();
--remaining;
break;
case 1:
offset = input.ReadUInt16();
remaining -= 2;
break;
case 2:
offset = input.ReadUInt16();
offset |= input.ReadByte() << 16;
remaining -= 3;
break;
default:
throw new InvalidFormatException ("DX decompression failed");
}
++offset;
Binary.CopyOverlapped (output, dst - offset, dst, count);
dst += count;
}
return output;
}
}
protected override IEnumerator <int> Unpack()
{
int unpacked_size, frame_size;
using (var reader = new ArcView.Reader(BaseStream))
{
unpacked_size = reader.ReadInt32();
frame_size = 2 << reader.ReadUInt16();
}
var frame = new byte[frame_size];
int frame_pos = 0;
int dst = 0;
int bits = 2;
while (dst < unpacked_size)
{
bits >>= 1;
if (1 == bits)
{
bits = BaseStream.ReadByte();
if (-1 == bits)
{
yield break;
}
bits |= 0x100;
}
int c = BaseStream.ReadByte();
if (-1 == c)
{
yield break;
}
if (0 != (bits & 1))
{
if (YieldByte((byte)c))
{
yield return(YieldOffset);
}
frame[frame_pos++ % frame_size] = (byte)c;
++dst;
}
else
{
int p = c | BaseStream.ReadByte() << 8;
int count = BaseStream.ReadByte();
if (-1 == count)
{
yield break;
}
count += 4;
p = frame_pos - p;
if (p < 0)
{
p += frame_size;
}
while (count-- > 0)
{
byte b = frame[p++ % frame_size];
if (YieldByte(b))
{
yield return(YieldOffset);
}
frame[frame_pos++ % frame_size] = b;
++dst;
}
}
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
stream.Position = 0x12;
using (var reader = new ArcView.Reader (stream))
{
int packed_size = reader.ReadInt32();
uint width = reader.ReadUInt32();
uint height = reader.ReadUInt32();
int bpp = reader.ReadUInt16() * 8;
reader.BaseStream.Position = 0x100;
int unpacked_size = reader.ReadInt32();
if (packed_size <= 0 || unpacked_size <= 0)
return null;
return new NgpMetaData
{
Width = width,
Height = height,
BPP = bpp,
PackedSize = packed_size,
UnpackedSize = unpacked_size,
};
}
}
public override Stream OpenEntry(ArcFile arc, Entry entry)
{
var pent = entry as PackedEntry;
Stream input = arc.File.CreateStream (entry.Offset, entry.Size);
if (null != pent && pent.IsPacked)
{
Stream unpacked;
using (input)
{
var data = new byte[pent.UnpackedSize];
UnpackEntry (input, data);
unpacked = new MemoryStream (data);
}
input = unpacked;
}
if (input.Length > 4 && input.Length < 0x10000)
{
using (var reader = new ArcView.Reader (input))
{
int unpacked_size = reader.ReadUInt16();
int packed_size = reader.ReadUInt16();
if (packed_size == input.Length-4)
{
using (input)
{
var data = new byte[unpacked_size];
UnpackLz77 (input, data);
return new MemoryStream (data);
}
}
input.Position = 0;
}
}
return input;
}
