/// <summary>
/// Reads bytes until a unescaped closing parenthesis in found. Unescapes escaped parenthesis.
/// Leaves reader on the char following the closing parenthesis.
/// </summary>
/// <param name="r"></param>
/// <returns></returns>
public static byte[] parseBinary(PsdBinaryReader r)
{
MemoryStream ms = new MemoryStream(128); //For writing the decoded binary
byte b = 0;
//Read bytes, keeping a two-byte shifting buffer so we can decode escaped chars.
while (r.CanReadByte())
{
b = r.ReadByte();
//Escaped parenthesis, skip slash
if ((char)b == '\\')
{
b = r.ReadByte();
ms.WriteByte(b);
}
else
{
//We hit the end, an unescaped closng parenthesis.
if ((char)b == ')')
{
return(ms.ToArray());
}
ms.WriteByte(b);
}
}
throw new TdTaParseException("Hit end of stream without finding closing parenthesis!");
}
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");
}
/// <summary>
/// Reads bytes until a unescaped closing parenthesis in found. Unescapes escaped parenthesis.
/// Leaves reader on the char following the closing parenthesis.
/// </summary>
/// <param name="r"></param>
/// <returns></returns>
public static byte[] parseBinary(PsdBinaryReader r)
{
MemoryStream ms = new MemoryStream(128); //For writing the decoded binary
byte b = 0;
byte lastb = 0;
bool hasLastByte = false;
//Read bytes, keeping a two-byte shifting buffer so we can decode escaped chars.
while (r.CanReadByte())
{
b = r.ReadByte();
//Look for closing parenthesis
if ((char)b == ')')
{
if (hasLastByte && (char)lastb == '\\')
{
//Escaped parenthesis, skip slash
lastb = 0;
hasLastByte = false;
}
else
{
//Unescaped closing parenthesis! We hit the end!
if (hasLastByte)
{
ms.WriteByte(lastb); //If we still have a byte in the buffer.
}
return(ms.ToArray()); //We hit the end, an unescaped closng parenthesis.
}
}
//Far as I know, nothing else is escaped.
//Write lastb if present.
if (hasLastByte)
{
ms.WriteByte(lastb);
}
//Shift buffer
lastb = b;
hasLastByte = true;
}
throw new TdTaParseException("Hit end of stream without finding closing parenthesis!");
}