public Mask(BinaryPSDReader reader, Layer layer)
: base(layer)
{
this._layer = layer;
int nLength = (int)reader.ReadUInt32();
if (nLength == 0)
return;
long nStart = reader.BaseStream.Position;
this.Rectangle = reader.ReadPSDRectangle(); //new Rectangle(reader).ToERectangle();
this._color = reader.ReadByte();
this._flags = reader.ReadByte();
if (nLength == 20)
reader.ReadUInt16(); //padding
else if (nLength == 36)
{
this._flags2 = reader.ReadByte();//same flags as above according to docs!?!?
this._maskBg = reader.ReadByte(); //Real user mask background. Only 0 or 255 - ie bool?!?
this._otherRectangle = reader.ReadPSDRectangle(); //new Rectangle(reader).ToERectangle(); //same as above rectangle according to docs?!?!
}
reader.BaseStream.Position = nStart + nLength;
}
public Mask(BinaryPSDReader reader, Layer layer)
: base(layer)
{
this._layer = layer;
int nLength = (int)reader.ReadUInt32();
if (nLength == 0)
{
return;
}
long nStart = reader.BaseStream.Position;
this.Rectangle = reader.ReadPSDRectangle(); //new Rectangle(reader).ToERectangle();
this._color = reader.ReadByte();
this._flags = reader.ReadByte();
if (nLength == 20)
{
reader.ReadUInt16(); //padding
}
else if (nLength == 36)
{
this._flags2 = reader.ReadByte(); //same flags as above according to docs!?!?
this._maskBg = reader.ReadByte(); //Real user mask background. Only 0 or 255 - ie bool?!?
this._otherRectangle = reader.ReadPSDRectangle(); //new Rectangle(reader).ToERectangle(); //same as above rectangle according to docs?!?!
}
reader.BaseStream.Position = nStart + nLength;
}
//public void AddChannel(Channel ch)
//{
// this._channels.Add(ch.Usage, ch);
//}
public Layer(BinaryPSDReader reader, Document document)
{
this._document = document;
this._rect = reader.ReadPSDRectangle();
ushort numChannels = reader.ReadUInt16();
this._channels = new Dictionary <int, Channel>();
for (int channelNum = 0; channelNum < numChannels; channelNum++)
{
Channel ch = new Channel(reader, this);
if (this._channels.ContainsKey(ch.Usage))
{
continue; //TODO: !!
}
this._channels.Add(ch.Usage, ch);
}
string sHeader = new string(reader.ReadPSDChars(4));
if (sHeader != "8BIM")
{
throw(new Exception("Layer Channelheader error!"));
}
//'levl'=Levels 'curv'=Curves 'brit'=Brightness/contrast 'blnc'=Color balance 'hue '=Old Hue/saturation, Photoshop 4.0 'hue2'=New Hue/saturation, Photoshop 5.0 'selc'=Selective color 'thrs'=Threshold 'nvrt'=Invert 'post'=Posterize
this.BlendKey = new string(reader.ReadPSDChars(4));
int nBlend = -1;
try
{
nBlend = (int)Enum.Parse(typeof(_blendKeysPsd), this.BlendKey);
}
catch
{
throw new Exception("Unknown blend key: " + this.BlendKey);
}
if (nBlend >= 0)
{
BlendKeys key = (BlendKeys)nBlend;
this.BlendKey = Enum.GetName(typeof(BlendKeys), key);
}
this.Opacity = reader.ReadByte();
this.Clipping = reader.ReadByte();
this.Flags = reader.ReadByte();
reader.ReadByte(); //padding
uint extraDataSize = reader.ReadUInt32();
long nChannelEndPos = reader.BaseStream.Position + (long)extraDataSize;
if (extraDataSize > 0)
{
uint nLength;
this._mask = new Mask(reader, this);
if (this._mask.Rectangle == null)
{
this._mask = null;
}
//blending ranges
this._blendRanges = new List <System.Drawing.Color>();
nLength = reader.ReadUInt32();
//First come Composite gray blend source / destination; Contains 2 black values followed by 2 white values. Present but irrelevant for Lab & Grayscale.
//Then 4+4 for each channel (source + destination colors)
for (uint i = 0; i < nLength / 8; i++)
{
this._blendRanges.Add(System.Drawing.Color.FromArgb((int)reader.ReadUInt32()));
this._blendRanges.Add(System.Drawing.Color.FromArgb((int)reader.ReadUInt32()));
}
//Name
//nLength = (uint)reader.ReadByte();
//reader.BaseStream.Position -= 1; //TODO: wtf did I do here?
this.Name = reader.ReadPascalString();
//TODO: sometimes there's a 2-byte padding here, but it's not 4-aligned... What is it?
long posBefore = reader.BaseStream.Position;
sHeader = new string(reader.ReadPSDChars(4));
if (sHeader != "8BIM")
{
reader.BaseStream.Position -= 2;
sHeader = new string(reader.ReadPSDChars(4));
}
if (sHeader != "8BIM")
{
reader.BaseStream.Position = posBefore;
}
else
{
reader.BaseStream.Position -= 4;
this._resources = LayerResource.ReadLayerResources(reader, null);
}
if (reader.BaseStream.Position != nChannelEndPos)
{
reader.BaseStream.Position = nChannelEndPos;
}
}
}
//public void AddChannel(Channel ch)
//{
// this._channels.Add(ch.Usage, ch);
//}
public Layer(BinaryPSDReader reader, Document document)
{
this._document = document;
this._rect = reader.ReadPSDRectangle();
ushort numChannels = reader.ReadUInt16();
this._channels = new Dictionary<int, Channel>();
for (int channelNum = 0; channelNum < numChannels; channelNum++)
{
Channel ch = new Channel(reader, this);
if (this._channels.ContainsKey(ch.Usage))
continue; //TODO: !!
this._channels.Add(ch.Usage, ch);
}
string sHeader = new string(reader.ReadPSDChars(4));
if (sHeader != "8BIM")
throw(new Exception("Layer Channelheader error!"));
//'levl'=Levels 'curv'=Curves 'brit'=Brightness/contrast 'blnc'=Color balance 'hue '=Old Hue/saturation, Photoshop 4.0 'hue2'=New Hue/saturation, Photoshop 5.0 'selc'=Selective color 'thrs'=Threshold 'nvrt'=Invert 'post'=Posterize
this.BlendKey = new string(reader.ReadPSDChars(4));
int nBlend = -1;
try
{
nBlend = (int)Enum.Parse(typeof(_blendKeysPsd), this.BlendKey);
}
catch
{
throw new Exception("Unknown blend key: " + this.BlendKey);
}
if (nBlend >= 0)
{
BlendKeys key = (BlendKeys)nBlend;
this.BlendKey = Enum.GetName(typeof(BlendKeys), key);
}
this.Opacity = reader.ReadByte();
this.Clipping = reader.ReadByte();
this.Flags = reader.ReadByte();
reader.ReadByte(); //padding
uint extraDataSize = reader.ReadUInt32();
long nChannelEndPos = reader.BaseStream.Position + (long)extraDataSize;
if (extraDataSize > 0)
{
uint nLength;
this._mask = new Mask(reader, this);
if (this._mask.Rectangle == null)
this._mask = null;
//blending ranges
this._blendRanges = new List<System.Drawing.Color>();
nLength = reader.ReadUInt32();
//First come Composite gray blend source / destination; Contains 2 black values followed by 2 white values. Present but irrelevant for Lab & Grayscale.
//Then 4+4 for each channel (source + destination colors)
for (uint i = 0; i < nLength/8; i++)
{
this._blendRanges.Add(System.Drawing.Color.FromArgb((int)reader.ReadUInt32()));
this._blendRanges.Add(System.Drawing.Color.FromArgb((int)reader.ReadUInt32()));
}
//Name
//nLength = (uint)reader.ReadByte();
//reader.BaseStream.Position -= 1; //TODO: wtf did I do here?
this.Name = reader.ReadPascalString();
//TODO: sometimes there's a 2-byte padding here, but it's not 4-aligned... What is it?
long posBefore = reader.BaseStream.Position;
sHeader = new string(reader.ReadPSDChars(4));
if (sHeader != "8BIM")
{
reader.BaseStream.Position-=2;
sHeader = new string(reader.ReadPSDChars(4));
}
if (sHeader != "8BIM")
reader.BaseStream.Position = posBefore;
else
{
reader.BaseStream.Position -= 4;
this._resources = LayerResource.ReadLayerResources(reader, null);
}
if (reader.BaseStream.Position != nChannelEndPos)
reader.BaseStream.Position = nChannelEndPos;
}
}
