/// <summary>
        /// Initializes a new instance of the <see cref="ImageResource"/> class using a reader.
        /// </summary>
        /// <param name="reader">The reader to use to create the instance.</param>
        public ImageResource(BinaryReverseReader reader)
        {
            // read the OS type
            string osType = new string(reader.ReadChars(4));
            if (osType != "8BIM" && osType != "MeSa")
            {
                throw new InvalidOperationException("Could not read an image resource");
            }

            // read the ID
            ID = reader.ReadInt16();

            // read the name
            Name = string.Empty;
            Name = reader.ReadPascalString();

            // read the length of the data in bytes
            uint length = reader.ReadUInt32();

            // read the actual data
            Data = reader.ReadBytes((int)length);
            if (reader.BaseStream.Position % 2L != 1L)
            {
                return;
            }

            reader.ReadByte();
        }
Esempio n. 2
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        ///////////////////////////////////////////////////////////////////////////

        private void LoadHeader(BinaryReverseReader reader)
        {
            Debug.WriteLine("LoadHeader started at " + reader.BaseStream.Position.ToString());

            string signature = new string(reader.ReadChars(4));

            if (signature != "8BPS")
            {
                throw new IOException("The given stream is not a valid PSD file");
            }

            m_version = reader.ReadInt16();
            if (m_version != 1)
            {
                throw new IOException("The PSD file has an unknown version");
            }

            //6 bytes reserved
            reader.BaseStream.Position += 6;

            m_channels  = reader.ReadInt16();
            m_rows      = reader.ReadInt32();
            m_columns   = reader.ReadInt32();
            m_depth     = reader.ReadInt16();
            m_colorMode = (ColorModes)reader.ReadInt16();
        }
        /// <summary>
        /// Initializes a new instance of the <see cref="ImageResource"/> class using a reader.
        /// </summary>
        /// <param name="reader">The reader to use to create the instance.</param>
        public ImageResource(BinaryReverseReader reader)
        {
            // read the OS type
            string osType = new string(reader.ReadChars(4));

            if (osType != "8BIM" && osType != "MeSa")
            {
                throw new InvalidOperationException("Could not read an image resource");
            }

            // read the ID
            ID = reader.ReadInt16();

            // read the name
            Name = string.Empty;
            Name = reader.ReadPascalString();

            // read the length of the data in bytes
            uint length = reader.ReadUInt32();

            // read the actual data
            Data = reader.ReadBytes((int)length);
            if (reader.BaseStream.Position % 2L != 1L)
            {
                return;
            }

            reader.ReadByte();
        }
        /// <summary>
        /// Initializes a new instance of the <see cref="AdjustmentLayerInfo"/> class.
        /// </summary>
        /// <param name="reader">The reader containing the PSD file data</param>
        /// <param name="layer">The layer that this adjustment info belongs to</param>
        public AdjustmentLayerInfo(BinaryReverseReader reader, Layer layer)
        {
            if (new string(reader.ReadChars(4)) != "8BIM")
            {
                throw new IOException("Could not read an image resource");
            }

            Key = new string(reader.ReadChars(4));
            if (Key == "lfx2" || Key == "lrFX")
            {
                layer.HasEffects = true;
            }

            uint length = reader.ReadUInt32();
            Data = reader.ReadBytes((int)length);
        }
Esempio n. 5
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        /// <summary>
        /// Initializes a new instance of the <see cref="AdjustmentLayerInfo"/> class.
        /// </summary>
        /// <param name="reader">The reader containing the PSD file data</param>
        /// <param name="layer">The layer that this adjustment info belongs to</param>
        public AdjustmentLayerInfo(BinaryReverseReader reader, Layer layer)
        {
            if (new string(reader.ReadChars(4)) != "8BIM")
            {
                throw new IOException("Could not read an image resource");
            }

            Key = new string(reader.ReadChars(4));
            if (Key == "lfx2" || Key == "lrFX")
            {
                layer.HasEffects = true;
            }

            uint length = reader.ReadUInt32();

            Data = reader.ReadBytes((int)length);
        }
Esempio n. 6
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            public AdjustmentLayerInfo(BinaryReverseReader reader, Layer layer)
            {
                Debug.WriteLine("AdjustmentLayerInfo started at " + reader.BaseStream.Position.ToString());

                m_layer = layer;

                string signature = new string(reader.ReadChars(4));

                if (signature != "8BIM")
                {
                    throw new IOException("Could not read an image resource");
                }

                m_key = new string(reader.ReadChars(4));

                uint dataLength = reader.ReadUInt32();

                m_data = reader.ReadBytes((int)dataLength);
            }
Esempio n. 7
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        public AlphaChannels(ImageResource imgRes)
            : base(imgRes)
        {
            BinaryReverseReader reader = imgRes.DataReader;

            // the names are pascal strings without padding!!!
            while ((reader.BaseStream.Length - reader.BaseStream.Position) > 0)
            {
                byte   stringLength = reader.ReadByte();
                string s            = new string(reader.ReadChars(stringLength));
                if (s.Length > 0)
                {
                    m_channelNames.Add(s);
                }
            }
            reader.Close();
        }
Esempio n. 8
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        //////////////////////////////////////////////////////////////////

        public ImageResource(BinaryReverseReader reader)
        {
            m_osType = new string(reader.ReadChars(4));
            if (m_osType != "8BIM" && m_osType != "MeSa")
            {
                throw new InvalidOperationException("Could not read an image resource");
            }

            m_id   = reader.ReadInt16();
            m_name = reader.ReadPascalString();

            uint settingLength = reader.ReadUInt32();

            m_data = reader.ReadBytes((int)settingLength);

            if (reader.BaseStream.Position % 2 == 1)
            {
                reader.ReadByte();
            }
        }
Esempio n. 9
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        /// <summary>
        /// Loads the header data from a PSD file
        /// </summary>
        /// <param name="reader">The reader containing the PSD file data</param>
        private void LoadHeader(BinaryReverseReader reader)
        {
            if (new string(reader.ReadChars(4)) != "8BPS")
            {
                UnityEngine.Debug.LogError("The given stream is not a valid PSD file");
                throw new IOException("The given stream is not a valid PSD file");
            }

            Version = reader.ReadInt16();
            if (Version != 1)
            {
                UnityEngine.Debug.LogError("The PSD file has an invalid version");
                throw new IOException("The PSD file has an invalid version");
            }

            reader.BaseStream.Position += 6L;
            channels  = reader.ReadInt16();
            height    = reader.ReadInt32();
            width     = reader.ReadInt32();
            depth     = reader.ReadInt16();
            ColorMode = (ColorModes)reader.ReadInt16();
        }
Esempio n. 10
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        public Layer(BinaryReverseReader reader, PsdFile psdFile)
        {
            Debug.WriteLine("Layer started at " + reader.BaseStream.Position);

            m_psdFile = psdFile;
            m_rect = new Rectangle
            {
                Y = reader.ReadInt32(),
                X = reader.ReadInt32()
            };
            m_rect.Height = reader.ReadInt32() - m_rect.Y;
            m_rect.Width = reader.ReadInt32() - m_rect.X;


            //-----------------------------------------------------------------------

            int numberOfChannels = reader.ReadUInt16();
            m_channels.Clear();
            for (int channel = 0; channel < numberOfChannels; channel++)
            {
                var ch = new Channel(reader, this);
                m_channels.Add(ch);
                m_sortedChannels.Add(ch.ID, ch);
            }

            //-----------------------------------------------------------------------

            var signature = new string(reader.ReadChars(4));
            if (signature != LayerConstants.EightBimSignature)
                throw (new IOException("Layer Channelheader error!"));

            m_blendModeKey = new string(reader.ReadChars(4));
            m_opacity = reader.ReadByte();

            m_clipping = reader.ReadByte() > 0;

            //-----------------------------------------------------------------------

            byte flags = reader.ReadByte();
            m_flags = new BitVector32(flags);

            //-----------------------------------------------------------------------

            reader.ReadByte(); //padding

            //-----------------------------------------------------------------------

            Debug.WriteLine("Layer extraDataSize started at " + reader.BaseStream.Position);

            // this is the total size of the MaskData, the BlendingRangesData, the 
            // Name and the AdjustmenLayerInfo
            uint extraDataSize = reader.ReadUInt32();


            // remember the start position for calculation of the 
            // AdjustmenLayerInfo size
            long extraDataStartPosition = reader.BaseStream.Position;

            m_maskData = new Mask(reader, this);
            m_blendingRangesData = new BlendingRanges(reader, this);

            //-----------------------------------------------------------------------

            var namePosition = reader.BaseStream.Position;

            m_name = reader.ReadPascalString();

            var paddingBytes = (int)((reader.BaseStream.Position - namePosition) % 4);

            Debug.Print("Layer {0} padding bytes after name", paddingBytes);
            reader.ReadBytes(paddingBytes);

            //-----------------------------------------------------------------------

            m_adjustmentInfo.Clear();

            long adjustmenLayerEndPos = extraDataStartPosition + extraDataSize;
            while (reader.BaseStream.Position < adjustmenLayerEndPos)
            {
                try
                {
                    m_adjustmentInfo.Add(new AdjusmentLayerInfo(reader, this));
                }
                catch
                {
                    reader.BaseStream.Position = adjustmenLayerEndPos;
                }
            }


            //-----------------------------------------------------------------------
            // make shure we are not on a wrong offset, so set the stream position 
            // manually
            reader.BaseStream.Position = adjustmenLayerEndPos;
        }
Esempio n. 11
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        //public BitVector32 Flags
        //{
        //    get { return flags; }
        //}
        /// <summary>
        /// Initializes a new instance of the <see cref="Layer"/> class using the provided reader containing the PSD file data.
        /// </summary>
        /// <param name="reader">The reader containing the PSD file data.</param>
        /// <param name="psdFile">The PSD file to set as the parent.</param>
        public Layer(BinaryReverseReader reader, PsdFile psdFile)
        {
            Children = new List<Layer>();
            PsdFile = psdFile;

            // read the rect
            Rect rect = new Rect();
            rect.y = reader.ReadInt32();
            rect.x = reader.ReadInt32();
            rect.height = reader.ReadInt32() - rect.y;
            rect.width = reader.ReadInt32() - rect.x;
            Rect = rect;

            // read the channels
            int channelCount = reader.ReadUInt16();
            Channels = new List<Channel>();
            SortedChannels = new SortedList<short, Channel>();
            for (int index = 0; index < channelCount; ++index)
            {
                Channel channel = new Channel(reader, this);
                Channels.Add(channel);
                SortedChannels.Add(channel.ID, channel);
            }

            // read the header and verify it
            if (new string(reader.ReadChars(4)) != "8BIM")
            {
                throw new IOException("Layer Channelheader error!");
            }

            // read the blend mode key (unused) (defaults to "norm")
            reader.ReadChars(4);

            // read the opacity
            Opacity = reader.ReadByte();

            // read the clipping (unused) (< 0 = base, > 0 = non base)
            reader.ReadByte();

            // read all of the flags (protectTrans, visible, obsolete, ver5orLater, pixelDataIrrelevant)
            flags = new BitVector32(reader.ReadByte());

            // skip a padding byte
            reader.ReadByte();

            uint num3 = reader.ReadUInt32();
            long position1 = reader.BaseStream.Position;
            MaskData = new Mask(reader, this);
            BlendingRangesData = new BlendingRanges(reader);
            long position2 = reader.BaseStream.Position;

            // read the name
            Name = reader.ReadPascalString();

            // read the adjustment info
            int count = (int)((reader.BaseStream.Position - position2) % 4L);
            reader.ReadBytes(count);
            AdjustmentInfo = new List<AdjustmentLayerInfo>();
            long num4 = position1 + num3;
            while (reader.BaseStream.Position < num4)
            {
                try
                {
                    AdjustmentInfo.Add(new AdjustmentLayerInfo(reader, this));
                }
                catch
                {
                    reader.BaseStream.Position = num4;
                }
            }

            foreach (AdjustmentLayerInfo adjustmentLayerInfo in AdjustmentInfo)
            {
                if (adjustmentLayerInfo.Key == "TySh")
                {
                    ReadTextLayer(adjustmentLayerInfo.DataReader);
                }
                else if (adjustmentLayerInfo.Key == "luni")
                {
                    // read the unicode name
                    BinaryReverseReader dataReader = adjustmentLayerInfo.DataReader;
                    dataReader.ReadBytes(3);
                    dataReader.ReadByte();
                    Name = dataReader.ReadString().TrimEnd(new char[1]);
                }
            }

            reader.BaseStream.Position = num4;
        }
Esempio n. 12
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        public Layer(BinaryReverseReader reader, PsdFile psdFile)
        {
            Debug.WriteLine("Layer started at " + reader.BaseStream.Position.ToString());

            m_psdFile     = psdFile;
            m_rect        = new Rectangle();
            m_rect.Y      = reader.ReadInt32();
            m_rect.X      = reader.ReadInt32();
            m_rect.Height = reader.ReadInt32() - m_rect.Y;
            m_rect.Width  = reader.ReadInt32() - m_rect.X;

            //-----------------------------------------------------------------------

            int numberOfChannels = reader.ReadUInt16();

            this.m_channels.Clear();
            for (int channel = 0; channel < numberOfChannels; channel++)
            {
                Channel ch = new Channel(reader, this);
                m_channels.Add(ch);
                m_sortedChannels.Add(ch.ID, ch);
            }

            //-----------------------------------------------------------------------

            string signature = new string(reader.ReadChars(4));

            if (signature != "8BIM")
            {
                throw (new IOException("Layer Channelheader error!"));
            }

            m_blendModeKey = new string(reader.ReadChars(4));
            m_opacity      = reader.ReadByte();

            m_clipping = reader.ReadByte() > 0;

            //-----------------------------------------------------------------------

            byte flags = reader.ReadByte();

            m_flags = new BitVector32(flags);

            //-----------------------------------------------------------------------

            reader.ReadByte(); //padding

            //-----------------------------------------------------------------------

            Debug.WriteLine("Layer extraDataSize started at " + reader.BaseStream.Position.ToString());

            // this is the total size of the MaskData, the BlendingRangesData, the
            // Name and the AdjustmentLayerInfo
            uint extraDataSize = reader.ReadUInt32();

            // remember the start position for calculation of the
            // AdjustmentLayerInfo size
            long extraDataStartPosition = reader.BaseStream.Position;

            m_maskData           = new Mask(reader, this);
            m_blendingRangesData = new BlendingRanges(reader, this);

            //-----------------------------------------------------------------------

            long namePosition = reader.BaseStream.Position;

            m_name = reader.ReadPascalString();

            int paddingBytes = (int)((reader.BaseStream.Position - namePosition) % 4);

            Debug.Print("Layer {0} padding bytes after name", paddingBytes);
            reader.ReadBytes(paddingBytes);

            //-----------------------------------------------------------------------

            m_adjustmentInfo.Clear();

            long adjustmentLayerEndPos = extraDataStartPosition + extraDataSize;

            while (reader.BaseStream.Position < adjustmentLayerEndPos)
            {
                try
                {
                    AdjustmentLayerInfo ali = new AdjustmentLayerInfo(reader, this);
                    if (ali.Key.Equals("lrFX"))
                    {
                        //A sub-key - we want to merge its sub-layer info items with this dict.
                        m_adjustmentInfo.AddRange(new Effects(ali)._resources.Values);
                    }
                    else
                    {
                        m_adjustmentInfo.Add(ali); // Just add the items
                    }
                }
                catch
                {
                    reader.BaseStream.Position = adjustmentLayerEndPos;
                }
            }


            //-----------------------------------------------------------------------
            // make sure we are not on a wrong offset, so set the stream position
            // manually
            reader.BaseStream.Position = adjustmentLayerEndPos;
        }
Esempio n. 13
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        public Layer(BinaryReverseReader reader, PsdFile psdFile)
        {
            Debug.WriteLine("Layer started at " + reader.BaseStream.Position.ToString());

              m_psdFile = psdFile;
              m_rect = new Rectangle();
              m_rect.Y = reader.ReadInt32();
              m_rect.X = reader.ReadInt32();
              m_rect.Height = reader.ReadInt32() - m_rect.Y;
              m_rect.Width = reader.ReadInt32() - m_rect.X;

              //-----------------------------------------------------------------------

              int numberOfChannels = reader.ReadUInt16();
              this.m_channels.Clear();
              for (int channel = 0; channel < numberOfChannels; channel++)
              {
            Channel ch = new Channel(reader, this);
            m_channels.Add(ch);
            m_sortedChannels.Add(ch.ID, ch);
              }

              //-----------------------------------------------------------------------

              string signature = new string(reader.ReadChars(4));
              if (signature != "8BIM")
            throw (new IOException("Layer Channelheader error!"));

              m_blendModeKey = new string(reader.ReadChars(4));
              m_opacity = reader.ReadByte();

              m_clipping = reader.ReadByte() > 0;

              //-----------------------------------------------------------------------

              byte flags = reader.ReadByte();
              m_flags = new BitVector32(flags);

              //-----------------------------------------------------------------------

              reader.ReadByte(); //padding

              //-----------------------------------------------------------------------

              Debug.WriteLine("Layer extraDataSize started at " + reader.BaseStream.Position.ToString());

              // this is the total size of the MaskData, the BlendingRangesData, the
              // Name and the AdjustmentLayerInfo
              uint extraDataSize = reader.ReadUInt32();

              // remember the start position for calculation of the
              // AdjustmentLayerInfo size
              long extraDataStartPosition = reader.BaseStream.Position;

              m_maskData = new Mask(reader, this);
              m_blendingRangesData = new BlendingRanges(reader, this);

              //-----------------------------------------------------------------------

              long namePosition = reader.BaseStream.Position;

              m_name = reader.ReadPascalString();

              int paddingBytes =(int)((reader.BaseStream.Position - namePosition) % 4);

              Debug.Print("Layer {0} padding bytes after name", paddingBytes);
              reader.ReadBytes(paddingBytes);

              //-----------------------------------------------------------------------

              m_adjustmentInfo.Clear();

              long adjustmentLayerEndPos = extraDataStartPosition + extraDataSize;
              while (reader.BaseStream.Position < adjustmentLayerEndPos)
              {
            try
            {
            AdjustmentLayerInfo ali = new AdjustmentLayerInfo(reader, this);
            if (ali.Key.Equals("lrFX"))
            {
                //A sub-key - we want to merge its sub-layer info items with this dict.
                m_adjustmentInfo.AddRange(new Effects(ali)._resources.Values);
            } else
                m_adjustmentInfo.Add(ali); // Just add the items
            }
            catch
            {
              reader.BaseStream.Position = adjustmentLayerEndPos;
            }
              }

              //-----------------------------------------------------------------------
              // make sure we are not on a wrong offset, so set the stream position
              // manually
              reader.BaseStream.Position = adjustmentLayerEndPos;
        }
Esempio n. 14
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        /// <summary>
        /// Loads the header data from a PSD file
        /// </summary>
        /// <param name="reader">The reader containing the PSD file data</param>
        private void LoadHeader(BinaryReverseReader reader)
        {
            if (new string(reader.ReadChars(4)) != "8BPS")
            {
                UnityEngine.Debug.LogError("The given stream is not a valid PSD file");
                throw new IOException("The given stream is not a valid PSD file");
            }

            Version = reader.ReadInt16();
            if (Version != 1)
            {
                UnityEngine.Debug.LogError("The PSD file has an invalid version");
                throw new IOException("The PSD file has an invalid version");
            }

            reader.BaseStream.Position += 6L;
            channels = reader.ReadInt16();
            height = reader.ReadInt32();
            width = reader.ReadInt32();
            depth = reader.ReadInt16();
            ColorMode = (ColorModes)reader.ReadInt16();
        }
Esempio n. 15
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            public AdjusmentLayerInfo(BinaryReverseReader reader, Layer layer)
            {
                Debug.WriteLine("AdjusmentLayerInfo started at " + reader.BaseStream.Position);

                m_layer = layer;

                var signature = new string(reader.ReadChars(4));
                if (signature != LayerConstants.EightBimSignature)
                {
                    throw new IOException("Could not read an image resource");
                }

                m_key = new string(reader.ReadChars(4));

                uint dataLength = reader.ReadUInt32();
                m_data = reader.ReadBytes((int) dataLength);
            }
Esempio n. 16
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        //////////////////////////////////////////////////////////////////

        public ImageResource(BinaryReverseReader reader)
        {
            m_osType = new string(reader.ReadChars(4));
            if (m_osType != "8BIM" && m_osType != "MeSa")
            {
                throw new InvalidOperationException("Could not read an image resource");
            }

            m_id = reader.ReadInt16();
            m_name = reader.ReadPascalString();

            uint settingLength = reader.ReadUInt32();
            m_data = reader.ReadBytes((int) settingLength);

            if (reader.BaseStream.Position%2 == 1)
                reader.ReadByte();
        }
Esempio n. 17
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        ///////////////////////////////////////////////////////////////////////////

        private void LoadHeader(BinaryReverseReader reader)
        {
            Debug.WriteLine("LoadHeader started at " + reader.BaseStream.Position);

            var signature = new string(reader.ReadChars(4));
            if (signature != "8BPS")
                throw new IOException("The given stream is not a valid PSD file");

            m_version = reader.ReadInt16();
            if (m_version != 1)
                throw new IOException("The PSD file has an unkown version");

            //6 bytes reserved
            reader.BaseStream.Position += 6;

            m_channels = reader.ReadInt16();
            m_rows = reader.ReadInt32();
            m_columns = reader.ReadInt32();
            m_depth = reader.ReadInt16();
            m_colorMode = (ColorModes) reader.ReadInt16();
        }
Esempio n. 18
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        /// <summary>
        /// Initializes a new instance of the <see cref="Layer"/> class using the provided reader containing the PSD file data.
        /// </summary>
        /// <param name="reader">The reader containing the PSD file data.</param>
        /// <param name="psdFile">The PSD file to set as the parent.</param>
        public Layer(BinaryReverseReader reader, PsdFile psdFile)
        {
            Children = new List <Layer>();
            PsdFile  = psdFile;

            // read the rect
            Rect rect = new Rect();

            rect.y      = reader.ReadInt32();
            rect.x      = reader.ReadInt32();
            rect.height = reader.ReadInt32() - rect.y;
            rect.width  = reader.ReadInt32() - rect.x;
            Rect        = rect;

            // read the channels
            int channelCount = reader.ReadUInt16();

            Channels       = new List <Channel>();
            SortedChannels = new SortedList <short, Channel>();
            for (int index = 0; index < channelCount; ++index)
            {
                Channel channel = new Channel(reader, this);
                Channels.Add(channel);
                SortedChannels.Add(channel.ID, channel);
            }

            // read the header and verify it
            if (new string(reader.ReadChars(4)) != "8BIM")
            {
                throw new IOException("Layer Channelheader error!");
            }

            // read the blend mode key (unused) (defaults to "norm")
            reader.ReadChars(4);

            // read the opacity
            Opacity = reader.ReadByte();

            // read the clipping (unused) (< 0 = base, > 0 = non base)
            reader.ReadByte();

            // read all of the flags (protectTrans, visible, obsolete, ver5orLater, pixelDataIrrelevant)
            flags = new BitVector32(reader.ReadByte());

            // skip a padding byte
            reader.ReadByte();

            uint num3      = reader.ReadUInt32();
            long position1 = reader.BaseStream.Position;

            MaskData           = new Mask(reader, this);
            BlendingRangesData = new BlendingRanges(reader);
            long position2 = reader.BaseStream.Position;

            // read the name
            Name = reader.ReadPascalString();

            // read the adjustment info
            int count = (int)((reader.BaseStream.Position - position2) % 4L);

            reader.ReadBytes(count);
            AdjustmentInfo = new List <AdjustmentLayerInfo>();
            long num4 = position1 + num3;

            while (reader.BaseStream.Position < num4)
            {
                try
                {
                    AdjustmentInfo.Add(new AdjustmentLayerInfo(reader, this));
                }
                catch
                {
                    reader.BaseStream.Position = num4;
                }
            }

            foreach (AdjustmentLayerInfo adjustmentLayerInfo in AdjustmentInfo)
            {
                if (adjustmentLayerInfo.Key == "TySh")
                {
                    ReadTextLayer(adjustmentLayerInfo.DataReader);
                }
                else if (adjustmentLayerInfo.Key == "luni")
                {
                    // read the unicode name
                    BinaryReverseReader dataReader = adjustmentLayerInfo.DataReader;
                    dataReader.ReadBytes(3);
                    dataReader.ReadByte();
                    Name = dataReader.ReadString().TrimEnd(new char[1]);
                }
            }

            reader.BaseStream.Position = num4;
        }
Esempio n. 19
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        public Layer(BinaryReverseReader reader, PsdFile psdFile)
        {
            Debug.WriteLine("Layer started at " + reader.BaseStream.Position);

            m_psdFile = psdFile;
            m_rect    = new Rectangle
            {
                Y = reader.ReadInt32(),
                X = reader.ReadInt32()
            };
            m_rect.Height = reader.ReadInt32() - m_rect.Y;
            m_rect.Width  = reader.ReadInt32() - m_rect.X;


            //-----------------------------------------------------------------------

            int numberOfChannels = reader.ReadUInt16();

            m_channels.Clear();
            for (int channel = 0; channel < numberOfChannels; channel++)
            {
                var ch = new Channel(reader, this);
                m_channels.Add(ch);
                m_sortedChannels.Add(ch.ID, ch);
            }

            //-----------------------------------------------------------------------

            var signature = new string(reader.ReadChars(4));

            if (signature != LayerConstants.EightBimSignature)
            {
                throw (new IOException("Layer Channelheader error!"));
            }

            m_blendModeKey = new string(reader.ReadChars(4));
            m_opacity      = reader.ReadByte();

            m_clipping = reader.ReadByte() > 0;

            //-----------------------------------------------------------------------

            byte flags = reader.ReadByte();

            m_flags = new BitVector32(flags);

            //-----------------------------------------------------------------------

            reader.ReadByte(); //padding

            //-----------------------------------------------------------------------

            Debug.WriteLine("Layer extraDataSize started at " + reader.BaseStream.Position);

            // this is the total size of the MaskData, the BlendingRangesData, the
            // Name and the AdjustmenLayerInfo
            uint extraDataSize = reader.ReadUInt32();


            // remember the start position for calculation of the
            // AdjustmenLayerInfo size
            long extraDataStartPosition = reader.BaseStream.Position;

            m_maskData           = new Mask(reader, this);
            m_blendingRangesData = new BlendingRanges(reader, this);

            //-----------------------------------------------------------------------

            var namePosition = reader.BaseStream.Position;

            m_name = reader.ReadPascalString();

            var paddingBytes = (int)((reader.BaseStream.Position - namePosition) % 4);

            Debug.Print("Layer {0} padding bytes after name", paddingBytes);
            reader.ReadBytes(paddingBytes);

            //-----------------------------------------------------------------------

            m_adjustmentInfo.Clear();

            long adjustmenLayerEndPos = extraDataStartPosition + extraDataSize;

            while (reader.BaseStream.Position < adjustmenLayerEndPos)
            {
                try
                {
                    m_adjustmentInfo.Add(new AdjusmentLayerInfo(reader, this));
                }
                catch
                {
                    reader.BaseStream.Position = adjustmenLayerEndPos;
                }
            }


            //-----------------------------------------------------------------------
            // make shure we are not on a wrong offset, so set the stream position
            // manually
            reader.BaseStream.Position = adjustmenLayerEndPos;
        }