public MaskInfo(PsdBinaryReader reader, Layer layer)
{
Util.DebugMessage(reader.BaseStream, "Load, Begin, MaskInfo");
var maskLength = reader.ReadUInt32();
if (maskLength <= 0)
{
return;
}
var startPosition = reader.BaseStream.Position;
var endPosition = startPosition + maskLength;
// Read layer mask
var rectangle = reader.ReadRectangle();
var backgroundColor = reader.ReadByte();
var flagsByte = reader.ReadByte();
LayerMask = new Mask(layer, rectangle, backgroundColor, new BitVector32(flagsByte));
// User mask is supplied separately when there is also a vector mask.
if (maskLength == 36)
{
var userFlagsByte = reader.ReadByte();
var userBackgroundColor = reader.ReadByte();
var userRectangle = reader.ReadRectangle();
UserMask = new Mask(layer, userRectangle, userBackgroundColor,
new BitVector32(userFlagsByte));
}
// 20-byte mask data will end with padding.
reader.BaseStream.Position = endPosition;
Util.DebugMessage(reader.BaseStream, "Load, End, MaskInfo");
}
public Layer(PsdBinaryReader reader, PsdFile psdFile)
: this(psdFile)
{
Util.DebugMessage(reader.BaseStream, "Load, Begin, Layer");
Rect = reader.ReadRectangle();
//-----------------------------------------------------------------------
// Read channel headers. Image data comes later, after the layer header.
Int32 numberOfChannels = reader.ReadUInt16();
for (Int32 channel = 0; channel < numberOfChannels; channel++)
{
var ch = new Channel(reader, this);
Channels.Add(ch);
}
//-----------------------------------------------------------------------
//
var signature = reader.ReadAsciiChars(4);
if (signature != "8BIM")
{
throw (new PsdInvalidException("Invalid signature in layer header."));
}
BlendModeKey = reader.ReadAsciiChars(4);
Opacity = reader.ReadByte();
Clipping = reader.ReadBoolean();
var flagsByte = reader.ReadByte();
_flags = new BitVector32(flagsByte);
reader.ReadByte(); //padding
//-----------------------------------------------------------------------
// This is the total size of the MaskData, the BlendingRangesData, the
// Name and the AdjustmentLayerInfo.
var extraDataSize = reader.ReadUInt32();
var extraDataStartPosition = reader.BaseStream.Position;
Masks = new MaskInfo(reader, this);
BlendingRangesData = new BlendingRanges(reader, this);
Name = reader.ReadPascalString(4);
//-----------------------------------------------------------------------
// Process Additional Layer Information
Int64 adjustmentLayerEndPos = extraDataStartPosition + extraDataSize;
while (reader.BaseStream.Position < adjustmentLayerEndPos)
{
var layerInfo = LayerInfoFactory.Load(reader,
psdFile: PsdFile,
globalLayerInfo: false);
AdditionalInfo.Add(layerInfo);
}
foreach (var adjustmentInfo in AdditionalInfo)
{
switch (adjustmentInfo.Key)
{
case "luni":
Name = ((LayerUnicodeName)adjustmentInfo).Name;
break;
}
}
Util.DebugMessage(reader.BaseStream, "Load, End, Layer, {0}", Name);
PsdFile.LoadContext.OnLoadLayerHeader(this);
}