Ejemplo n.º 1
0
        public override ImageData Read(IBinaryStream stream, ImageMetaData info)
        {
            var meta = (GyuMetaData)info;

            if (0 == meta.Key)
            {
                bool got_key = false;
                var  name    = Path.GetFileNameWithoutExtension(meta.FileName);
                int  num;
                if (int.TryParse(name, out num))
                {
                    if (null == CurrentMap)
                    {
                        CurrentMap = QueryScheme();
                    }
                    got_key = CurrentMap != null && CurrentMap.TryGetValue(num, out meta.Key);
                }
                if (!got_key)
                {
                    CurrentMap = null;
                    throw new UnknownEncryptionScheme("Unknown image encryption key");
                }
            }
            var reader = new GyuReader(stream.AsStream, meta);

            reader.Unpack();
            return(ImageData.CreateFlipped(meta, reader.Format, reader.Palette, reader.Data, reader.Stride));
        }
Ejemplo n.º 2
0
        public override ImageData Read(Stream stream, ImageMetaData info)
        {
            var meta = (GyuMetaData)info;

            if (0 == meta.Key)
            {
                throw new UnknownEncryptionScheme("Unknown image encryption key");
            }

            var reader = new GyuReader(stream, meta);

            reader.Unpack();
            return(ImageData.CreateFlipped(meta, reader.Format, reader.Palette, reader.Data, reader.Stride));
        }
Ejemplo n.º 3
0
        public override ImageData Read(IBinaryStream stream, ImageMetaData info)
        {
            var meta = (GyuMetaData)info;

            if (0 == meta.Key)
            {
                object token = null;
                if (null == CurrentMap)
                {
                    CurrentMap = QueryScheme();
                }
                if (CurrentMap != null)
                {
                    var name = Path.GetFileNameWithoutExtension(meta.FileName);
                    int num;
                    if (int.TryParse(name, out num) && CurrentMap.Contains(num))
                    {
                        token = num;
                    }
                    else if (CurrentMap.Contains(name))
                    {
                        token = name;
                    }
                }
                if (null == token)
                {
                    CurrentMap = null;
                    throw new UnknownEncryptionScheme("Unknown image encryption key");
                }
                meta.Key = (uint)CurrentMap[token];
            }
            var reader = new GyuReader(stream.AsStream, meta);

            reader.Unpack();
            return(ImageData.CreateFlipped(meta, reader.Format, reader.Palette, reader.Data, reader.Stride));
        }