public RawTexture()
 {
     Width = 0;
     Height = 0;
     Data = new byte[0];
     Format = DataFormat.Invalid;
 }

        public ActionResult OEmbed(string url, int maxwidth = 570, int maxheight = 400, DataFormat format = DataFormat.Json)
        {
            if (string.IsNullOrEmpty(url))
                return HttpStatusCodeResult(HttpStatusCode.BadRequest, "URL not specified");

            var route = new RouteInfo(new Uri(url), AppConfig.HostAddress).RouteData;
            var controller = route.Values["controller"].ToString().ToLowerInvariant();

            if (controller != "song" && controller != "s") {
                return HttpStatusCodeResult(HttpStatusCode.BadRequest, "Only song embeds are supported");
            }

            int id;

            if (controller == "s") {
                var match = Regex.Match(route.Values["action"].ToString(), @"(\d+)");
                id = int.Parse(match.Groups[1].Value);
            }
            else {
                id = int.Parse(route.Values["id"].ToString());
            }

            var song = Services.Songs.GetSong(id);
            var html = string.Format("<iframe src=\"{0}\" width=\"{1}\" height=\"{2}\"></iframe>",
                VocaUriBuilder.CreateAbsolute(Url.Action("EmbedSong", new {songId = id})), maxwidth, maxheight);

            return Object(new SongOEmbedResponse(song, maxwidth, maxheight, html), format);
        }

        Serialization(DataFormat dataFormat, string streamName)
        {
            Dbg.Assert(!string.IsNullOrEmpty(streamName), "stream needs a name");

            format = dataFormat;
            this.streamName = streamName;
        }

        private WireType GetWireType(TypeCode code, DataFormat format, ref Type type, out int modelKey)
        {
            modelKey = -1;
            if (type.IsEnum) return WireType.None;
            switch (code)
            {
                case TypeCode.Int16:
                case TypeCode.Int32:
                case TypeCode.Int64:
                case TypeCode.UInt16:
                case TypeCode.UInt32:
                case TypeCode.UInt64:
                case TypeCode.Boolean:
                case TypeCode.SByte:
                case TypeCode.Byte:
                case TypeCode.Char:
                    return WireType.Variant;
                case TypeCode.Double:
                    return WireType.Fixed64;
                case TypeCode.Single:
                    return WireType.Fixed32;
                case TypeCode.String:
                case TypeCode.DateTime:
                case TypeCode.Decimal:
                    return WireType.String;
            }
            if (type == typeof(byte[]) || type == typeof(TimeSpan)
                || type == typeof(Guid) || type == typeof(Uri)) return WireType.String;

            if ((modelKey = GetKey(ref type)) >= 0)
            {
                return WireType.String;
            }
            return WireType.None;
        }

        public ActionResult ByPV(PVService service, string pvId, ContentLanguagePreference? lang, string callback, 
            DataFormat format = DataFormat.Auto)
        {
            var song = Service.GetSongWithPV(s => new SongForApiContract(s, lang ?? ContentLanguagePreference.Default), service, pvId);

            return Object(song, format, callback);
        }

        public ActionResult ByPVBase(PVService service, string pvId, string callback,
            DataFormat format = DataFormat.Auto)
        {
            var song = Service.GetSongWithPV(s => new EntryBaseContract(s), service, pvId);

            return Object(song, format, callback);
        }

        public static string Run(string data, DataFormat inputFormat, DataFormat outputFormat, Operation operation)
        {
            if (string.IsNullOrEmpty(data)) return string.Empty;

            var bytes = GetBytes(data, inputFormat);
            var result = Process(bytes, operation);
            return GetString(result, outputFormat);
        }

 /// <summary>
 /// 实例化RESTfulInvocationHandler
 /// </summary>
 /// <param name="attribute"></param>
 /// <param name="token"></param>
 /// <param name="foramt"></param>
 public RESTfulInvocationHandler(string url, PublishKindAttribute attribute, Token token, DataFormat foramt, int timeout)
 {
     this.format = foramt;
     this.attribute = attribute;
     this.token = token;
     this.url = url;
     this.timeout = timeout;
 }

        /// <summary>
        /// Uploads an activity.
        /// </summary>
        /// <param name="file">The path to the activity file on your local hard disk.</param>
        /// <param name="dataFormat">The format of the file.</param>
        /// <param name="activityType">The type of the activity.</param>
        /// <returns>The status of the upload.</returns>
        public async Task<UploadStatus> UploadActivityAsync(StorageFile file, DataFormat dataFormat, ActivityType activityType = ActivityType.Ride)
        {
            String format = String.Empty;

            switch (dataFormat)
            {
                case DataFormat.Fit:
                    format = "fit";
                    break;
                case DataFormat.FitGZipped:
                    format = "fit.gz";
                    break;
                case DataFormat.Gpx:
                    format = "gpx";
                    break;
                case DataFormat.GpxGZipped:
                    format = "gpx.gz";
                    break;
                case DataFormat.Tcx:
                    format = "tcx";
                    break;
                case DataFormat.TcxGZipped:
                    format = "tcx.gz";
                    break;
            }
           
            HttpClient client = new HttpClient();
            client.DefaultRequestHeaders.Add("Authorization", String.Format("Bearer {0}", Authentication.AccessToken));

            MultipartFormDataContent content = new MultipartFormDataContent();

            byte[] fileBytes = null;
            using (IRandomAccessStreamWithContentType stream = await file.OpenReadAsync())
            {
                fileBytes = new byte[stream.Size];
                using (DataReader reader = new DataReader(stream))
                {
                    await reader.LoadAsync((uint)stream.Size);
                    reader.ReadBytes(fileBytes);
                }
            }

            var byteArrayContent = new ByteArrayContent(fileBytes);

            content.Add(byteArrayContent, "file", file.Name);

            HttpResponseMessage result = await client.PostAsync(
                String.Format("https://www.strava.com/api/v3/uploads?data_type={0}&activity_type={1}",
                format,
                activityType.ToString().ToLower()),
                content);

            String json = await result.Content.ReadAsStringAsync();

            return Unmarshaller<UploadStatus>.Unmarshal(json);
        }

        public ActionResult Index(string query, DiscType discType = DiscType.Unknown,
            int start = 0, bool getTotalCount = false, AlbumSortRule sort = AlbumSortRule.Name,
            NameMatchMode nameMatchMode = NameMatchMode.Exact, DataFormat format = DataFormat.Auto)
        {
            var queryParams = new AlbumQueryParams(query, discType, start, maxResults, false, getTotalCount, nameMatchMode, sort);

            var entries = Service.Find(a => new AlbumForApiContract(a, LoginManager.LanguagePreference), queryParams);

            return Object(entries, format);
        }

        public ActionResult ByPVBase(PVService? service, string pvId, string callback,
            DataFormat format = DataFormat.Auto)
        {
            if (service == null)
                return HttpStatusCodeResult(HttpStatusCode.BadRequest, "Service not specified or invalid");

            var song = Service.GetSongWithPV(s => new EntryBaseContract(s), service.Value, pvId);

            return Object(song, format, callback);
        }

        public ActionResult Tracks(int id = invalidId, DataFormat format = DataFormat.Auto, 
            ContentLanguagePreference lang = ContentLanguagePreference.Default)
        {
            if (id == invalidId)
                return NoId();

            var tracks = Service.GetAlbum(id, a => a.Songs.Select(s => new SongInAlbumContract(s, lang)).ToArray());

            return Object(tracks, format);
        }

        /// <summary>
        /// Creates a new <see cref="ConfigurationCell"/> from specified parameters.
        /// </summary>
        /// <param name="parent">The reference to parent <see cref="ConfigurationFrame"/> of this <see cref="ConfigurationCell"/>.</param>
        /// <param name="idCode">The numeric ID code for this <see cref="ConfigurationCell"/>.</param>
        /// <param name="isVirtual">Assigns flag that determines if this <see cref="ConfigurationCell"/> is virtual.</param>
        public ConfigurationCell(ConfigurationFrame parent, ushort idCode, bool isVirtual)
            : base(parent, idCode, int.MaxValue, int.MaxValue, int.MaxValue)
		{			
			m_signalReferences = new Dictionary<SignalType, string[]>();
			m_analogDataFormat = DataFormat.FloatingPoint;
			m_frequencyDataFormat = DataFormat.FloatingPoint;
			m_phasorDataFormat = DataFormat.FloatingPoint;
			m_phasorCoordinateFormat = CoordinateFormat.Polar;
            m_isVirtual = isVirtual;
		}

    // constructor for reading an IDX file
    public IDX(Stream in_stream, bool in_writing=false)
    {
        _idx_stream = in_stream;
        // verify we can actually use this stream
        Debug.Assert(_idx_stream.CanRead && _idx_stream.CanSeek);

        _writing = in_writing;
        if (_writing)
        {
            // just verify stream is writeable
            Debug.Assert(_idx_stream.CanWrite == true);
        }

        // get our endianness
        _idx_endianness = (Endianness)(255 * ReadUInt8() + ReadUInt8());
        Debug.Assert(_idx_endianness == Endianness.BigEndian || _idx_endianness == Endianness.LittleEndian);

        // get data format
        _data_format = (DataFormat)ReadUInt8();

        // number of dimensions
        byte dimensions = ReadUInt8();
        Debug.Assert(dimensions > 0);
        // get number of rows
        _rows = ReadUInt32();

        // calculate length of each row
        _row_length = 1;
        for (int k = 1; k < dimensions; k++)
        {
            _row_length *= ReadUInt32();
        }

        _row_length_bytes = _row_length;
        switch (_data_format)
        {
            case DataFormat.UInt8:
            case DataFormat.SInt8:
                _row_length_bytes *= 1;
                break;
            case DataFormat.SInt16:
                _row_length_bytes *= 2;
                break;
            case DataFormat.SInt32:
            case DataFormat.Single:
                _row_length_bytes *= 4;
                break;
            case DataFormat.Double:
                _row_length_bytes *= 8;
                break;
        }

        // get size of the header
        _header_size = (uint)_idx_stream.Position;
    }

        /// <summary>
        /// Creates a new <see cref="ConfigurationCell"/> from specified parameters.
        /// </summary>
        /// <param name="parent">The reference to parent <see cref="ConfigurationFrame"/> of this <see cref="ConfigurationCell"/>.</param>
        /// <param name="idCode">The numeric ID code for this <see cref="ConfigurationCell"/>.</param>
        public ConfigurationCell(ConfigurationFrame parent, ushort idCode)
            : base(parent, idCode, int.MaxValue, int.MaxValue, int.MaxValue)
        {
            // Create a cached signal reference dictionary for generated signal references
            m_generatedSignalReferenceCache = new string[Enum.GetValues(typeof(SignalKind)).Length][];

            m_analogDataFormat = DataFormat.FloatingPoint;
            m_frequencyDataFormat = DataFormat.FloatingPoint;
            m_phasorDataFormat = DataFormat.FloatingPoint;
            m_phasorCoordinateFormat = CoordinateFormat.Polar;
        }

        public ActionResult ParsePVUrl(string pvUrl, string callback, DataFormat format = DataFormat.Auto)
        {
            var result = VideoServiceHelper.ParseByUrl(pvUrl, true);

            if (!result.IsOk) {
                return Json(new GenericResponse<string>(false, result.Exception.Message));
            }

            var contract = new PVContract(result, PVType.Original);

            return Object(contract, format, callback);
        }

        public ActionResult Versions(DataFormat format = DataFormat.Auto)
        {
            var versions = queries
                .HandleQuery(ctx => ctx.Query()
                    .Where(a => !a.Deleted)
                    .Select(a => new { a.Id, a.Version })
                    .ToArray()
                    .Select(v => new EntryIdAndVersionContract(v.Id, v.Version))
                    .ToArray());

            return ObjectLowercase(versions, format);
        }

        /// <summary>
        /// Raises the <see cref="E:System.Windows.Forms.UserControl.Load"/> event.
        /// </summary>
        /// <param name="e">An <see cref="T:System.EventArgs"/> that contains the event data.</param>
        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            foreach (var key in controlMapping.Keys)
            {
                var format = key;
                var rb = controlMapping[format];
                rb.Checked = format == DataFormat;
                rb.CheckedChanged += (s, _) => DataFormat = format;
            }
        }

        /// <summary>
        /// Creates a new ValueMember instance
        /// </summary>
        internal ValueMember(RuntimeTypeModel model, int fieldNumber, Type memberType, Type itemType, Type defaultType, DataFormat dataFormat)
        {
            if (memberType == null) throw new ArgumentNullException("memberType");
            if (model == null) throw new ArgumentNullException("model");
            this.fieldNumber = fieldNumber;
            this.memberType = memberType;
            this.itemType = itemType;
            this.defaultType = defaultType;

            this.model = model;
            this.dataFormat = dataFormat;
        }

        public ActionResult Details(int id = invalidId,
            bool includeAlbums = true, bool includeArtists = true, bool includeNames = true, bool includePVs = false, bool includeTags = true, bool includeWebLinks = false,
            string callback = null, DataFormat format = DataFormat.Auto,
            ContentLanguagePreference lang = ContentLanguagePreference.Default)
        {
            if (id == invalidId)
                return NoId();

            var song = Service.GetSongWithMergeRecord(id, (s, m) => new SongForApiContract(s, m, lang, includeAlbums, includeArtists, includeNames, includePVs, includeTags, true, includeWebLinks));

            return Object(song, format, callback);
        }