/// <summary>
/// Add DWT data into this tile
/// </summary>
/// <param name="diffDwt">the DWT tile</param>
public void AddDwt(DwtTile diffDwt)
{
DwtTile orgDwt = GetDwt();
diffDwt.Add(orgDwt);
UpdateDwt(diffDwt);
}
/// <summary>
/// Decode an encoded tile
/// </summary>
/// <param name="enTile">Represents an encoded tile.</param>
/// <param name="tState">The context state of the tile that going to be decoded.</param>
public static void DecodeTile(EncodedTile enTile, TileState tState)
{
RfxProgressiveCodecContext codecContext = new RfxProgressiveCodecContext(
enTile.CodecQuantVals,
enTile.QuantIdxY,
enTile.QuantIdxCb,
enTile.QuantIdxCr,
enTile.DataType == EncodedTileType.Simple ? false : true,
enTile.IsDifferenceTile,
enTile.UseReduceExtrapolate);
//RLGR/SRL Decode
if (enTile.DataType == EncodedTileType.FirstPass || enTile.DataType == EncodedTileType.Simple)
{ //first pass or simple
codecContext.YData = enTile.YEncodedData;
codecContext.CbData = enTile.CbEncodedData;
codecContext.CrData = enTile.CrEncodedData;
RemoteFXDecoder.RLGRDecode(codecContext);
ComputeOriginalLL3FromDeltas(codecContext);
}
else
{
SRLDecode(codecContext, enTile, tState);
}
//Progressive Dequantization
if (enTile.DataType != EncodedTileType.Simple)
{
ProgressiveDeQuantization(codecContext, enTile.ProgCodecQuant);
}
// Create a DwtTile instance for tri-state
DwtTile triStateDwt = new DwtTile(codecContext.YComponent, codecContext.CbComponent, codecContext.CrComponent,
enTile.CodecQuantVals, enTile.QuantIdxY, enTile.QuantIdxCb, enTile.QuantIdxCr, enTile.UseReduceExtrapolate, enTile.ProgCodecQuant);
//Set Tri-State for progressive codec
if (enTile.DataType == EncodedTileType.FirstPass)
{
//DwtTile tileTriStat = SetTriState(diffDwt, enTile.UseReduceExtrapolate);
tState.UpdateTriState(triStateDwt);
}
else if (enTile.DataType == EncodedTileType.UpgradePass)
{
DwtTile prvStat = tState.GetTriState();
prvStat.Add(triStateDwt);
// update ProCodecQuant
prvStat.ProgCodecQuant = triStateDwt.ProgCodecQuant;
tState.UpdateTriState(prvStat);
}
// Create another DwtTile instance for DWT Data.
// The data in diffDwt is the same as triStateDwt, this will makesure the DWT data and tri-state not share the same DWT tile instance
DwtTile diffDwt = new DwtTile(codecContext.YComponent, codecContext.CbComponent, codecContext.CrComponent,
enTile.CodecQuantVals, enTile.QuantIdxY, enTile.QuantIdxCb, enTile.QuantIdxCr, enTile.UseReduceExtrapolate, enTile.ProgCodecQuant);
//Sum difference
if (enTile.IsDifferenceTile || enTile.DataType == EncodedTileType.UpgradePass)
{
tState.AddDwt(diffDwt);
}
else
{
tState.UpdateDwt(diffDwt);
}
}
/// <summary>
/// Add DWT data into this tile
/// </summary>
/// <param name="diffDwt">the DWT tile</param>
public void AddDwt(DwtTile diffDwt)
{
DwtTile orgDwt = GetDwt();
diffDwt.Add(orgDwt);
UpdateDwt(diffDwt);
}