public static LayerResource Create(Type type)
{
System.Reflection.ConstructorInfo ci = type.GetConstructor(new Type[] { });
LayerResource res = (LayerResource)ci.Invoke(new object[] { });
return(res);
}
public LayerResource GetOrCreateLayerResource(Type type)
{
LayerResource res = this.GetResource(type);
if (res == null)
{
res = LayerResource.Create(type);
this._resources.Add(res.Tag, res);
}
return(res);
}
public static Dictionary <string, LayerResource> ReadLayerResources(BinaryPSDReader reader, Type inheritsType)
{
Prepare();
Dictionary <string, LayerResource> result = new Dictionary <string, LayerResource>();
while (true)
{
LayerResource res = ReadLayerResource(reader, inheritsType);
if (res == null)
{
break;
}
result.Add(res.Tag, res);
}
return(result);
}
public static LayerResource ReadLayerResource(BinaryPSDReader reader, Type inheritsType)
{
long posBefore = reader.BaseStream.Position;
string sHeader = new string(reader.ReadPSDChars(4));
if (sHeader != "8BIM")
{
reader.BaseStream.Position = posBefore; //back it up
return(null);
}
string tag = new string(reader.ReadPSDChars(4));
Type type = null;
bool usingDefault = false;
if (!ResourceTypes.ContainsKey(tag))
{
if (inheritsType == null)
{
inheritsType = typeof(LayerResource);
}
//throw new Exception("LayerResource tag unknown: " + tag);
type = inheritsType;
usingDefault = true;
//LayerResource temp = new LayerResource(reader);
//temp.Tag = tag;
//return temp;
}
else
{
type = ResourceTypes[tag];
}
System.Reflection.ConstructorInfo ci = type.GetConstructor(new Type[] { typeof(BinaryPSDReader) });
LayerResource res = (LayerResource)ci.Invoke(new object[] { reader });
res.Tag = tag;
return(res);
}
//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 Document(string a_sFilename)
{
this.Init();
FileStream stream = new FileStream(a_sFilename,
FileMode.Open, FileAccess.Read);
//stream.
BinaryPSDReader reader = new BinaryPSDReader(stream);
string signature = new string(reader.ReadPSDChars(4));
if (signature != "8BPS")
{
return;
}
this._header = new Header(reader);
//this.Version = reader.ReadUInt16();
//if (Version != 1)
// throw new Exception("Can not read .psd version " + Version);
//byte[] buf = new byte[256];
//reader.Read(buf, (int)reader.BaseStream.Position, 6); //6 bytes reserved
//this.Channels = reader.ReadInt16();
//this.Rows = reader.ReadUInt32();
//this.Columns = reader.ReadUInt32();
//this.BitsPerPixel = (int)reader.ReadUInt16();
//this.ColorMode = (ColorModes)reader.ReadInt16();
#region Palette
uint nPaletteLength = reader.ReadUInt32();
if (nPaletteLength > 0)
{
this.ColorTable = new List <Color>();
for (int i = 0; i < nPaletteLength; i += 3)
{
this.ColorTable.Add(Color.FromArgb((int)reader.ReadByte(), (int)reader.ReadByte(), (int)reader.ReadByte()));
}
//this.ColorTable.Add(Color.FromArgb(255, 10, 20));
if (this.ColorMode == ColorModes.Duotone)
{
}
else
{
}
}
#endregion
uint nResLength = reader.ReadUInt32(); //? Number of bytes, or number of entries??
if (nResLength > 0)
{
//read settings
this._imageResources = ImageResource.ReadImageResources(reader);
}
//reader.JumpToEvenNthByte(4);
uint nTotalLayersBytes = reader.ReadUInt32();
long nAfterLayersDefinitions = reader.BaseStream.Position + nTotalLayersBytes;
if (nTotalLayersBytes == 8)
{
stream.Position += nTotalLayersBytes;
//this.Unknown = Endogine.Serialization.ReadableBinary.CreateHexEditorString(reader.ReadBytes((int)reader.BytesToEnd));
}
else
{
uint nSize = reader.ReadUInt32(); //What's the difference between nTotalLayersBytes and nSize really?
long nLayersEndPos = reader.BaseStream.Position + nSize;
short nNumLayers = reader.ReadInt16();
bool bSkipFirstAlpha = false;
if (nNumLayers < 0)
{
bSkipFirstAlpha = true;
nNumLayers = (short)-nNumLayers;
}
List <Layer> loadOrderLayers = new List <Layer>();
this._layers = new List <Layer>(); // new Dictionary<int, Layer>();
for (int nLayerNum = 0; nLayerNum < nNumLayers; nLayerNum++)
{
Layer layerInfo = new Layer(reader, this);
layerInfo.DebugLayerLoadOrdinal = nLayerNum;
//if (layerInfo.LayerID < 0)
// layerInfo.LayerID = nLayerNum;
//if (this._layers.ContainsKey(layerInfo.LayerID))
// throw(new Exception("Duplicate layer IDs! " + layerInfo.LayerID.ToString()));
//else
// this._layers.Add(layerInfo.LayerID, layerInfo);
this._layers.Add(layerInfo);
loadOrderLayers.Add(layerInfo);
}
for (int layerNum = 0; layerNum < nNumLayers; layerNum++)
{
Layer layer = (Layer)loadOrderLayers[layerNum];
layer.ReadPixels(reader);
}
reader.JumpToEvenNthByte(4);
if (reader.BaseStream.Position != nLayersEndPos)
{
reader.BaseStream.Position = nLayersEndPos; // nAfterLayersDefinitions;
}
//Global layer mask
uint maskLength = reader.ReadUInt32();
this._tempGlobalLayerMask = null;
if (maskLength > 0)
{
this._tempGlobalLayerMask = reader.ReadBytes((int)maskLength);
//TODO: the docs are obviously wrong here...
//ushort overlayColorSpace = reader.ReadUInt16(); //undefined in docs
//for (int i = 0; i < 4; i++)
// reader.ReadUInt16(); //TODO: UInt16 if 16-bit color? Color components - says *both* 4*2 bytes, and 8 bytes in the docs?
//reader.ReadUInt16(); //opacity (0-100)
//reader.ReadByte(); //Kind: 0=Color selectedi.e. inverted; 1=Color protected;128=use value stored per layer.
//reader.ReadByte(); //padding
}
//hmm... another section of "global" layer resources..?
while (true)
{
long cpPos = reader.BaseStream.Position;
string sHeader = new string(reader.ReadPSDChars(4));
reader.BaseStream.Position = cpPos; //TODO: -= 4 should work, but sometimes ReadPSDChars advances 5?!?!
if (sHeader != "8BIM")
{
break;
}
LayerResource res = LayerResource.ReadLayerResource(reader, null);
this._globalLayerResources.Add(res);
}
}
bool readGlobalImage = true;
if (readGlobalImage)
{
this._globalImage = new GlobalImage(this);
this._globalImage.Load(reader);
//the big merged bitmap (which is how the photoshop document looked when it was saved)
//Bitmap bmp = this._globalImage.Bitmap;
}
reader.Close();
stream.Close();
}
