/// <summary>
/// Reads a GIF file from the specified stream.
/// </summary>
/// <param name="inputStream">
/// A stream to read the GIF data from.
/// </param>
/// <param name="xmlDebugging">
/// A boolean value indicating whether or not an XML document should be
/// created showing how the GIF stream was decoded.
/// </param>
public GifDecoder(Stream inputStream, bool xmlDebugging)
: base(xmlDebugging)
{
if (inputStream == null)
{
throw new ArgumentNullException("inputStream");
}
if (inputStream.CanRead == false)
{
string message
= "The supplied stream cannot be read";
throw new ArgumentException(message, "inputStream");
}
_stream = inputStream;
_state = GifDecoderState.NotStarted;
}
/// <summary>
/// Decodes the supplied GIF stream.
/// </summary>
public void Decode()
{
_state = GifDecoderState.Decoding;
ReadStream(_stream);
_state = GifDecoderState.Done;
}
/// <summary>
/// Decodes the supplied GIF stream.
/// </summary>
public void Decode()
{
_state = GifDecoderState.Decoding;
ReadStream( _stream );
_state = GifDecoderState.Done;
}
/// <summary>
/// Reads a GIF file from the specified stream.
/// </summary>
/// <param name="inputStream">
/// A stream to read the GIF data from.
/// </param>
/// <param name="xmlDebugging">
/// A boolean value indicating whether or not an XML document should be
/// created showing how the GIF stream was decoded.
/// </param>
public GifDecoder( Stream inputStream, bool xmlDebugging )
: base(xmlDebugging)
{
if( inputStream == null )
{
throw new ArgumentNullException( "inputStream" );
}
if( inputStream.CanRead == false )
{
string message
= "The supplied stream cannot be read";
throw new ArgumentException( message, "inputStream" );
}
_stream = inputStream;
_state = GifDecoderState.NotStarted;
}
