void ISerializeExplicit.ReadData(IDataReader reader)
{
int version;
try { reader.ReadValue("version", out version); }
catch (Exception) { version = Serialize_Version_Unknown; }
string formatId;
if (version == Serialize_Version_FormatId)
{
reader.ReadValue("formatId", out formatId);
}
else if (version == Serialize_Version_LayerPng)
{
formatId = ImageCodec.FormatPng;
}
else
{
throw new NotSupportedException(string.Format(
"Unknown PixelData serialization version '{0}'. Can't load image data.",
version));
}
IImageCodec codec = ImageCodec.GetRead(formatId);
if (codec == null)
{
throw new NotSupportedException(string.Format(
"Unable to retrieve image codec for format '{0}'. Can't load image data.",
formatId));
}
byte[] dataBlock;
reader.ReadValue("pixelData", out dataBlock);
using (MemoryStream stream = new MemoryStream(dataBlock))
{
PixelData pixelData = codec.Read(stream);
this.data = pixelData.data;
this.width = pixelData.width;
this.height = pixelData.height;
pixelData = null;
}
}
void ISerializeExplicit.WriteData(IDataWriter writer)
{
string formatId = ImageCodec.FormatPng;
writer.WriteValue("version", Serialize_Version_FormatId);
writer.WriteValue("formatId", formatId);
IImageCodec codec = ImageCodec.GetWrite(formatId);
if (codec == null)
{
throw new NotSupportedException(string.Format(
"Unable to retrieve image codec for format '{0}'. Can't save image data.",
formatId));
}
using (MemoryStream str = new MemoryStream(1024 * 64))
{
codec.Write(str, this, formatId);
writer.WriteValue("pixelData", str.ToArray());
}
}