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 ImageData Read(Stream stream, ImageMetaData info)
{
var meta = (AlbMetaData)info;
stream.Position = 0x10;
using (var alb = new AlbStream (stream, meta.UnpackedSize))
using (var file = new SeekableStream (alb))
return meta.Format.Read (file, meta.Info);
}
public override ImageData Read(Stream stream, ImageMetaData info)
{
var meta = (AlbMetaData)info;
stream.Position = 0x10;
using (var alb = new AlbStream(stream, meta.UnpackedSize))
using (var file = new SeekableStream(alb))
return(meta.Format.Read(file, meta.Info));
}
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 ImageMetaData ReadMetaData(IBinaryStream stream)
{
var header = stream.ReadHeader(0x10);
int unpacked_size = header.ToInt32(8);
using (var alb = new AlbStream(stream, unpacked_size))
using (var s = new SeekableStream(alb))
using (var file = new BinaryStream(s, stream.Name))
{
uint signature = file.Signature;
ImageFormat format;
if (Png.Signature == signature)
{
format = ImageFormat.Png;
}
else if (Dds.Value.Signature == signature)
{
format = Dds.Value;
}
else
{
format = ImageFormat.Jpeg;
}
file.Position = 0;
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,
});
}
}
