public override ImageMetaData ReadMetaData(Stream stream)
{
using (var input = new ArcView.Reader(stream))
{
int width = input.ReadInt16();
int height = input.ReadInt16();
if (width <= 0 || height <= 0)
{
return(null);
}
int bpp = input.ReadInt32();
if (24 != bpp && 32 != bpp && 8 != bpp)
{
return(null);
}
if (0 != input.ReadInt64())
{
return(null);
}
return(new ImageMetaData
{
Width = (uint)width,
Height = (uint)height,
BPP = bpp,
});
}
}
} // '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(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)
{
stream.Position = 4;
using (var reader = new ArcView.Reader(stream))
{
int version = reader.ReadInt16();
if (version != 1)
{
return(null);
}
int unpacked_size = reader.ReadInt32();
int data_offset = reader.ReadInt32();
if (unpacked_size < 0x36 || data_offset < stream.Position)
{
return(null);
}
var header = new byte[0x20];
stream.Position = data_offset;
Unpack(stream, header);
if ('B' != header[0] || 'M' != header[1])
{
return(null);
}
return(new ZbmMetaData
{
Width = LittleEndian.ToUInt32(header, 0x12),
Height = LittleEndian.ToUInt32(header, 0x16),
BPP = LittleEndian.ToInt16(header, 0x1C),
UnpackedSize = unpacked_size,
DataOffset = data_offset,
});
}
}
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);
}
}
protected List <Entry> ReadIndex(Stream file)
{
long base_offset = file.Position;
using (var input = new ArcView.Reader(file))
{
int count = Binary.BigEndian(input.ReadInt16());
if (!IsSaneCount(count))
{
return(null);
}
base_offset += Binary.BigEndian(input.ReadUInt32());
if (base_offset >= file.Length || base_offset < 15 * count)
{
return(null);
}
var dir = new List <Entry>();
for (int i = 0; i < count; ++i)
{
if (base_offset - file.Position < 15)
{
return(null);
}
var name = file.ReadCString();
if (base_offset - file.Position < 13 || 0 == name.Length)
{
return(null);
}
var entry = FormatCatalog.Instance.Create <NsaEntry> (name);
byte compression_type = input.ReadByte();
entry.Offset = Binary.BigEndian(input.ReadUInt32()) + base_offset;
entry.Size = Binary.BigEndian(input.ReadUInt32());
if (!entry.CheckPlacement(file.Length))
{
return(null);
}
entry.UnpackedSize = Binary.BigEndian(input.ReadUInt32());
entry.IsPacked = compression_type != 0;
switch (compression_type)
{
case 0: entry.CompressionType = Compression.None; break;
case 1: entry.CompressionType = Compression.SPB; break;
case 2: entry.CompressionType = Compression.LZSS; break;
case 4: entry.CompressionType = Compression.NBZ; break;
default: entry.CompressionType = Compression.Unknown; break;
}
dir.Add(entry);
}
return(dir);
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
using (var reader = new ArcView.Reader(stream))
{
int name_count = reader.ReadInt16();
if (name_count <= 0 || name_count > 1000)
{
return(null);
}
for (int i = 0; i < name_count; ++i)
{
int name_length = reader.ReadInt32();
if (name_length <= 0 || name_length > 260)
{
return(null);
}
stream.Seek(name_length, SeekOrigin.Current);
}
int tile_count = reader.ReadInt16();
if (tile_count <= 0 || tile_count > 1000)
{
return(null);
}
var rect = new Rectangle(0, 0, 0, 0);
for (int i = 0; i < tile_count; ++i)
{
int name_length = reader.ReadInt32();
if (name_length <= 0 || name_length > 260)
{
return(null);
}
stream.Seek(name_length + 0xC, SeekOrigin.Current);
int x = reader.ReadInt32();
int y = reader.ReadInt32();
int w = reader.ReadInt32() - x;
int h = reader.ReadInt32() - y;
var part_rect = new Rectangle(x, y, w, h);
rect = Rectangle.Union(rect, part_rect);
stream.Seek(0x28, SeekOrigin.Current);
}
return(ReadCompressionMetaData(reader, rect));
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
using (var reader = new ArcView.Reader(stream))
{
int count = reader.ReadInt16();
if (count <= 0 || count >= 0x100)
{
return(null);
}
int offset;
if (count > 1)
{
offset = reader.ReadInt32();
if (offset != 2 + count * 4)
{
return(null);
}
}
else
{
offset = 2;
}
stream.Position = offset;
int unpacked_size = reader.ReadInt32();
int packed_size = reader.ReadInt32();
offset += 8;
if (offset + packed_size > stream.Length)
{
return(null);
}
byte[] header = new byte[0x36];
if (0x36 != MgrOpener.Decompress(stream, header) ||
header[0] != 'B' || header[1] != 'M')
{
return(null);
}
using (var bmp = new MemoryStream(header))
{
var info = Bmp.ReadMetaData(bmp);
if (null == info)
{
return(null);
}
return(new MgrMetaData
{
Width = info.Width,
Height = info.Height,
BPP = info.BPP,
Offset = offset,
PackedSize = packed_size,
UnpackedSize = unpacked_size,
});
}
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
using (var input = new ArcView.Reader(stream))
{
int x = input.ReadInt16();
int y = input.ReadInt16();
int w = input.ReadInt16();
int h = input.ReadInt16();
if (w <= 0 || w > 0x1000 || h <= 0 || h > 0x1000 ||
x < 0 || x > 0x800 || y < 0 || y > 0x800)
{
return(null);
}
return(new ImageMetaData {
Width = (uint)w,
Height = (uint)h,
OffsetX = x,
OffsetY = y,
BPP = 8,
});
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
using (var reader = new ArcView.Reader(stream))
{
int count = reader.ReadInt16();
if (count <= 0)
{
return(null);
}
var tiles = new Tile[count];
for (int i = 0; i < count; ++i)
{
var tile = new Tile();
tile.Left = reader.ReadInt16();
tile.Top = reader.ReadInt16();
if (tile.Left < 0 || tile.Top < 0)
{
return(null);
}
tile.Right = reader.ReadInt16();
tile.Bottom = reader.ReadInt16();
if (tile.Right <= tile.Left || tile.Bottom <= tile.Top)
{
return(null);
}
tiles[i] = tile;
}
int width = reader.ReadInt16();
int height = reader.ReadInt16();
if (width <= 0 || height <= 0)
{
return(null);
}
foreach (var tile in tiles)
{
if (tile.Right > width || tile.Bottom > height)
{
return(null);
}
}
return(new SplMetaData
{
Width = (uint)width,
Height = (uint)height,
BPP = 24,
Tiles = tiles,
DataOffset = stream.Position,
});
}
}
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)
{
int A = stream.ReadByte();
int P = stream.ReadByte();
if ('A' != A || 'P' != P)
{
return(null);
}
using (var file = new ArcView.Reader(stream))
{
var info = new ImageMetaData();
info.Width = file.ReadUInt32();
info.Height = file.ReadUInt32();
info.BPP = file.ReadInt16();
if (info.Width > 0x8000 || info.Height > 0x8000 || !(32 == info.BPP || 24 == info.BPP))
{
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 override ImageMetaData ReadMetaData(Stream stream)
{
int sig = stream.ReadByte();
if (sig >= 0x20)
{
return(null);
}
using (var input = new ArcView.Reader(stream))
{
int width = input.ReadInt16();
int height = input.ReadInt16();
if (width <= 0 || height <= 0 || width > 4096 || height > 4096)
{
return(null);
}
var meta = new CgMetaData
{
Width = (uint)width,
Height = (uint)height,
BPP = 24,
Type = sig,
};
if (0 != (sig & 7))
{
meta.OffsetX = input.ReadInt16();
meta.OffsetY = input.ReadInt16();
meta.Right = input.ReadInt16();
meta.Bottom = input.ReadInt16();
if (meta.OffsetX > meta.Right || meta.OffsetY > meta.Bottom ||
meta.Right > width || meta.Bottom > height ||
meta.OffsetX < 0 || meta.OffsetY < 0)
{
return(null);
}
}
return(meta);
}
}
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 (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))
{
int width = input.ReadInt16();
int height = input.ReadInt16();
if (width <= 0 || height <= 0)
return null;
int bpp = input.ReadInt32();
if (24 != bpp && 32 != bpp && 8 != bpp)
return null;
if (0 != input.ReadInt64())
return null;
return new ImageMetaData
{
Width = (uint)width,
Height = (uint)height,
BPP = bpp,
};
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
int A = stream.ReadByte();
int O = stream.ReadByte();
if ('A' != A || 'O' != O)
return null;
using (var file = new ArcView.Reader (stream))
{
var info = new ImageMetaData();
info.Width = file.ReadUInt32();
info.Height = file.ReadUInt32();
info.BPP = file.ReadInt16();
info.OffsetX = file.ReadInt32();
info.OffsetY = file.ReadInt32();
if (info.Width > 0x8000 || info.Height > 0x8000 || !(32 == info.BPP || 24 == info.BPP))
return null;
return info;
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
using (var reader = new ArcView.Reader (stream))
{
int count = reader.ReadInt16();
if (count <= 0 || count >= 0x100)
return null;
int offset;
if (count > 1)
{
offset = reader.ReadInt32();
if (offset != 2 + count * 4)
return null;
}
else
offset = 2;
stream.Position = offset;
int unpacked_size = reader.ReadInt32();
int packed_size = reader.ReadInt32();
offset += 8;
if (offset + packed_size > stream.Length)
return null;
byte[] header = new byte[0x36];
if (0x36 != MgrOpener.Decompress (stream, header)
|| header[0] != 'B' || header[1] != 'M')
return null;
using (var bmp = new MemoryStream (header))
{
var info = Bmp.ReadMetaData (bmp);
if (null == info)
return null;
return new MgrMetaData
{
Width = info.Width,
Height = info.Height,
BPP = info.BPP,
Offset = offset,
PackedSize = packed_size,
UnpackedSize = unpacked_size,
};
}
}
}
protected List<Entry> ReadIndex(Stream file)
{
long base_offset = file.Position;
using (var input = new ArcView.Reader (file))
{
int count = Binary.BigEndian (input.ReadInt16());
if (!IsSaneCount (count))
return null;
base_offset += Binary.BigEndian (input.ReadUInt32());
if (base_offset >= file.Length || base_offset < 15 * count)
return null;
var dir = new List<Entry>();
for (int i = 0; i < count; ++i)
{
if (base_offset - file.Position < 15)
return null;
var name = file.ReadCString();
if (base_offset - file.Position < 13 || 0 == name.Length)
return null;
var entry = FormatCatalog.Instance.Create<NsaEntry> (name);
byte compression_type = input.ReadByte();
entry.Offset = Binary.BigEndian (input.ReadUInt32()) + base_offset;
entry.Size = Binary.BigEndian (input.ReadUInt32());
if (!entry.CheckPlacement (file.Length))
return null;
entry.UnpackedSize = Binary.BigEndian (input.ReadUInt32());
entry.IsPacked = compression_type != 0;
switch (compression_type)
{
case 0: entry.CompressionType = Compression.None; break;
case 1: entry.CompressionType = Compression.SPB; break;
case 2: entry.CompressionType = Compression.LZSS; break;
case 4: entry.CompressionType = Compression.NBZ; break;
default: entry.CompressionType = Compression.Unknown; break;
}
dir.Add (entry);
}
return dir;
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
int sig = stream.ReadByte();
if (sig >= 0x20)
return null;
using (var input = new ArcView.Reader (stream))
{
int width = input.ReadInt16();
int height = input.ReadInt16();
if (width <= 0 || height <= 0 || width > 4096 || height > 4096)
return null;
var meta = new CgMetaData
{
Width = (uint)width,
Height = (uint)height,
BPP = 24,
Type = sig,
};
if (0 != (sig & 7))
{
meta.OffsetX = input.ReadInt16();
meta.OffsetY = input.ReadInt16();
meta.Right = input.ReadInt16();
meta.Bottom = input.ReadInt16();
if (meta.OffsetX > meta.Right || meta.OffsetY > meta.Bottom ||
meta.Right > width || meta.Bottom > height ||
meta.OffsetX < 0 || meta.OffsetY < 0)
return null;
}
return meta;
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
using (var input = new ArcView.Reader (stream))
{
int x = input.ReadInt16();
int y = input.ReadInt16();
int w = input.ReadInt16();
int h = input.ReadInt16();
if (w <= 0 || w > 0x1000 || h <= 0 || h > 0x1000
|| x < 0 || x > 0x800 || y < 0 || y > 0x800)
return null;
return new ImageMetaData {
Width = (uint)w,
Height = (uint)h,
OffsetX = x,
OffsetY = y,
BPP = 8,
};
}
}