public override void LoadData(BinaryReader reader, StructInstance instance)
{
int offset = (int)reader.BaseStream.Position;
int len;
try
{
len = GetExpressionAttribute("len").EvaluateInt(instance);
}
catch (OverflowException)
{
throw new LoadDataException("Blob size is larger than Int32");
}
if (offset + len > reader.BaseStream.Length)
throw new LoadDataException("Blob size " + len + " exceeds stream length");
if (len < 0)
throw new LoadDataException("Blob size " + len + " is negative");
var decodedSizeExpr = GetExpressionAttribute("decodedsize");
int decodedSize = decodedSizeExpr != null ? decodedSizeExpr.EvaluateInt(instance) : -1;
string encoding = GetStringAttribute("encoding");
BlobDecoder blobDecoder = FindBlobEncoding(instance, encoding);
BlobCell cell = new BlobCell(this, reader.BaseStream, offset, len, blobDecoder, decodedSize);
instance.AddCell(cell, _hidden);
instance.RegisterCellSize(cell, len);
reader.BaseStream.Position += len;
StructDef structDef = GetStructAttribute("struct");
if (structDef != null)
instance.AddChildSeed(new BlobChildSeed(structDef, cell));
}
public override void LoadData(BinaryReader reader, StructInstance instance)
{
int offset = (int)reader.BaseStream.Position;
int len;
try
{
len = GetExpressionAttribute("len").EvaluateInt(instance);
}
catch (OverflowException)
{
throw new LoadDataException("Blob size is larger than Int32");
}
if (offset + len > reader.BaseStream.Length)
{
throw new LoadDataException("Blob size " + len + " exceeds stream length");
}
if (len < 0)
{
throw new LoadDataException("Blob size " + len + " is negative");
}
var decodedSizeExpr = GetExpressionAttribute("decodedsize");
int decodedSize = decodedSizeExpr != null?decodedSizeExpr.EvaluateInt(instance) : -1;
string encoding = GetStringAttribute("encoding");
BlobDecoder blobDecoder = FindBlobEncoding(instance, encoding);
BlobCell cell = new BlobCell(this, reader.BaseStream, offset, len, blobDecoder, decodedSize);
instance.AddCell(cell, _hidden);
instance.RegisterCellSize(cell, len);
reader.BaseStream.Position += len;
StructDef structDef = GetStructAttribute("struct");
if (structDef != null)
{
instance.AddChildSeed(new BlobChildSeed(structDef, cell));
}
}
public override void LoadData(BinaryReader reader, StructInstance instance)
{
Expression valueExpr = GetExpressionAttribute("value");
if (valueExpr != null)
{
AddCell(instance, valueExpr);
return;
}
int offset = (int)reader.BaseStream.Position;
string value;
int cellSize;
int charSize = 1;
if (_wide)
charSize = 2;
Expression lengthExpr = GetExpressionAttribute("len");
if (lengthExpr != null)
{
int length = lengthExpr.EvaluateInt(instance);
if (length < 0)
{
throw new LoadDataException("Length expression " + lengthExpr +
" has the result of " + length + " which is negative");
}
cellSize = length * charSize;
if (reader.BaseStream.Length - reader.BaseStream.Position < cellSize)
{
throw new LoadDataException("Length expression " + lengthExpr +
" has the result of " + length + " and points outside the file");
}
byte[] bytes = reader.ReadBytes(length * charSize);
char[] chars = _wide ? Encoding.Unicode.GetChars(bytes) : Encoding.Default.GetChars(bytes);
for (int i = 0; i < length; i++)
{
if (chars[i] == '\0')
{
length = i;
break;
}
}
value = new string(chars, 0, length);
}
else
{
StringBuilder valueBuilder = new StringBuilder();
BinaryReader charReader =
_wide ? new BinaryReader(reader.BaseStream, Encoding.Unicode)
: reader;
while (true)
{
char c = charReader.ReadChar();
if (c == '\0') break;
valueBuilder.Append(c);
}
value = valueBuilder.ToString();
cellSize = value.Length * charSize;
}
StructCell cell = AddCell(instance, value, offset);
instance.RegisterCellSize(cell, cellSize);
}
public override void LoadData(BinaryReader reader, StructInstance instance)
{
Expression valueExpr = GetExpressionAttribute("value");
if (valueExpr != null)
{
AddCell(instance, valueExpr);
return;
}
int offset = (int)reader.BaseStream.Position;
string value;
int cellSize;
int charSize = 1;
if (_wide)
{
charSize = 2;
}
Expression lengthExpr = GetExpressionAttribute("len");
if (lengthExpr != null)
{
int length = lengthExpr.EvaluateInt(instance);
if (length < 0)
{
throw new LoadDataException("Length expression " + lengthExpr +
" has the result of " + length + " which is negative");
}
cellSize = length * charSize;
if (reader.BaseStream.Length - reader.BaseStream.Position < cellSize)
{
throw new LoadDataException("Length expression " + lengthExpr +
" has the result of " + length + " and points outside the file");
}
byte[] bytes = reader.ReadBytes(length * charSize);
char[] chars = _wide ? Encoding.Unicode.GetChars(bytes) : Encoding.Default.GetChars(bytes);
for (int i = 0; i < length; i++)
{
if (chars[i] == '\0')
{
length = i;
break;
}
}
value = new string(chars, 0, length);
}
else
{
StringBuilder valueBuilder = new StringBuilder();
BinaryReader charReader =
_wide ? new BinaryReader(reader.BaseStream, Encoding.Unicode)
: reader;
while (true)
{
char c = charReader.ReadChar();
if (c == '\0')
{
break;
}
valueBuilder.Append(c);
}
value = valueBuilder.ToString();
cellSize = value.Length * charSize;
}
StructCell cell = AddCell(instance, value, offset);
instance.RegisterCellSize(cell, cellSize);
}