internal Channel(PsdBinaryReader reader, Layer layer)
{
Util.DebugMessage(reader.BaseStream, "Load, Begin, Channel");
ID = reader.ReadInt16();
Length = (layer.PsdFile.IsLargeDocument)
? reader.ReadInt64()
: reader.ReadInt32();
Layer = layer;
Util.DebugMessage(reader.BaseStream, $"Load, End, Channel, {ID}");
}
///////////////////////////////////////////////////////////////////////////
public BlendingRanges(PsdBinaryReader reader, Layer layer)
{
Util.DebugMessage(reader.BaseStream, "Load, Begin, BlendingRanges");
Layer = layer;
var dataLength = reader.ReadInt32();
if (dataLength <= 0)
{
return;
}
Data = reader.ReadBytes(dataLength);
Util.DebugMessage(reader.BaseStream, "Load, End, BlendingRanges");
}
public static LayerInfo Load(PsdBinaryReader reader)
{
var signature = reader.ReadAsciiChars(4);
if (signature != "8BIM")
{
throw new PsdInvalidException("Could not read LayerInfo due to signature mismatch." + signature);
}
var key = reader.ReadAsciiChars(4);
var length = reader.ReadInt32();
// var startPosition = reader.BaseStream.Position;
// UnityEngine.Debug.Log("EffectLayerFactory key:" + key);
LayerInfo result;
switch (key)
{
case "iglw":
case "oglw":
result = new GlowEffect(reader, key);
break;
case "dsdw":
case "isdw":
result = new ShadowEffect(reader, key);
break;
case "bevl":
result = new BevelEffect(reader, key);
break;
default:
result = new RawLayerInfo(reader, key, (int)length);
break;
}
return(result);
}
public static ImageResource CreateImageResource(PsdBinaryReader reader)
{
Util.DebugMessage(reader.BaseStream, "Load, Begin, ImageResource");
var signature = reader.ReadAsciiChars(4);
var resourceIdInt = reader.ReadUInt16();
var name = reader.ReadPascalString(2);
var dataLength = (int)reader.ReadInt32();
var dataPaddedLength = Util.RoundUp(dataLength, 2);
var endPosition = reader.BaseStream.Position + dataPaddedLength;
ImageResource resource = null;
var resourceId = (ResourceID)resourceIdInt;
switch (resourceId)
{
case ResourceID.ResolutionInfo:
resource = new ResolutionInfo(reader, name);
break;
case ResourceID.ThumbnailRgb:
case ResourceID.ThumbnailBgr:
resource = new Thumbnail(reader, resourceId, name, dataLength);
break;
case ResourceID.AlphaChannelNames:
resource = new AlphaChannelNames(reader, name, dataLength);
break;
case ResourceID.UnicodeAlphaNames:
resource = new UnicodeAlphaNames(reader, name, dataLength);
break;
case ResourceID.VersionInfo:
resource = new VersionInfo(reader, name);
break;
default:
resource = new RawImageResource(reader, signature, resourceId, name, dataLength);
break;
}
Util.DebugMessage(reader.BaseStream,
$"Load, End, ImageResource, {resourceId}");
// Reposition the reader if we do not consume the full resource block.
// This takes care of the even-padding, and also preserves forward-
// compatibility in case a resource block is later extended with
// additional properties.
if (reader.BaseStream.Position < endPosition)
{
reader.BaseStream.Position = endPosition;
}
// However, overruns are definitely an error.
if (reader.BaseStream.Position > endPosition)
{
throw new PsdInvalidException("Corruption detected in resource.");
}
return(resource);
}
