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using Ryujinx.Common.Memory;
using System.Diagnostics;
using System.Runtime.InteropServices;
namespace Ryujinx.Graphics.Nvdec.Vp9.Types
{
internal struct Segmentation
{
private static readonly int[] _segFeatureDataSigned = { 1, 1, 0, 0 };
private static readonly int[] _segFeatureDataMax = { QuantCommon.MaxQ, Vp9.LoopFilter.MaxLoopFilter, 3, 0 };
public bool Enabled;
public bool UpdateMap;
public byte UpdateData;
public byte AbsDelta;
public bool TemporalUpdate;
public Array8<Array4<short>> FeatureData;
public Array8<uint> FeatureMask;
public int AqAvOffset;
public static byte GetPredProbSegId(ref Array3<byte> segPredProbs, ref MacroBlockD xd)
{
return segPredProbs[xd.GetPredContextSegId()];
}
public void ClearAllSegFeatures()
{
MemoryMarshal.CreateSpan(ref FeatureData[0][0], 8 * 4).Clear();
MemoryMarshal.CreateSpan(ref FeatureMask[0], 8).Clear();
AqAvOffset = 0;
}
internal void EnableSegFeature(int segmentId, SegLvlFeatures featureId)
{
FeatureMask[segmentId] |= 1u << (int)featureId;
}
internal static int FeatureDataMax(SegLvlFeatures featureId)
{
return _segFeatureDataMax[(int)featureId];
}
internal static int IsSegFeatureSigned(SegLvlFeatures featureId)
{
return _segFeatureDataSigned[(int)featureId];
}
internal void SetSegData(int segmentId, SegLvlFeatures featureId, int segData)
{
Debug.Assert(segData <= _segFeatureDataMax[(int)featureId]);
if (segData < 0)
{
Debug.Assert(_segFeatureDataSigned[(int)featureId] != 0);
Debug.Assert(-segData <= _segFeatureDataMax[(int)featureId]);
}
FeatureData[segmentId][(int)featureId] = (short)segData;
}
internal int IsSegFeatureActive(int segmentId, SegLvlFeatures featureId)
{
return Enabled && (FeatureMask[segmentId] & (1 << (int)featureId)) != 0 ? 1 : 0;
}
internal short GetSegData(int segmentId, SegLvlFeatures featureId)
{
return FeatureData[segmentId][(int)featureId];
}
}
}
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