public override ImageData Read(Stream stream, ImageMetaData info)
{
var meta = (EencMetaData)info;
meta.Info.FileName = info.FileName;
Stream input = new StreamRegion (stream, 8, true);
try
{
input = new EencStream (input, meta.Key);
if (meta.Compressed)
input = new ZLibStream (input, CompressionMode.Decompress);
return meta.Format.Read (input, meta.Info);
}
finally
{
input.Dispose();
}
}
public override ImageMetaData ReadMetaData(IBinaryStream stream)
{
var header = stream.ReadHeader(8);
bool compressed = 'Z' == header[3];
uint key = header.ToUInt32(4) ^ EencKey;
Stream input = new StreamRegion(stream.AsStream, 8, true);
try
{
input = new EencStream(input, key);
if (compressed)
{
input = new ZLibStream(input, CompressionMode.Decompress);
input = new SeekableStream(input);
}
using (var bin = new BinaryStream(input, stream.Name, true))
{
var format = FindFormat(bin);
if (null == format)
{
return(null);
}
return(new EencMetaData
{
Width = format.Item2.Width,
Height = format.Item2.Height,
BPP = format.Item2.BPP,
Key = key,
Info = format.Item2,
Format = format.Item1,
Compressed = compressed,
});
}
}
finally
{
input.Dispose();
}
}
public override ImageData Read(IBinaryStream stream, ImageMetaData info)
{
var meta = (EencMetaData)info;
meta.Info.FileName = info.FileName;
Stream input = new StreamRegion(stream.AsStream, 8, true);
try
{
input = new EencStream(input, meta.Key);
if (meta.Compressed)
{
input = new ZLibStream(input, CompressionMode.Decompress);
}
using (var bin = new BinaryStream(input, stream.Name, true))
return(meta.Format.Read(bin, meta.Info));
}
finally
{
input.Dispose();
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
var header = new byte[8];
if (8 != stream.Read (header, 0, 8))
return null;
bool compressed = 'Z' == header[3];
uint key = LittleEndian.ToUInt32 (header, 4) ^ EencKey;
Stream input = new StreamRegion (stream, 8, true);
try
{
input = new EencStream (input, key);
if (compressed)
{
input = new ZLibStream (input, CompressionMode.Decompress);
input = new SeekableStream (input);
}
var format = FindFormat (input);
if (null == format)
return null;
return new EencMetaData
{
Width = format.Item2.Width,
Height = format.Item2.Height,
BPP = format.Item2.BPP,
Key = key,
Info = format.Item2,
Format = format.Item1,
Compressed = compressed,
};
}
finally
{
input.Dispose();
}
}
