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67 lines
2.1 KiB
C#
67 lines
2.1 KiB
C#
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using Ryujinx.Common.Memory;
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using System.Diagnostics;
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namespace Ryujinx.Graphics.Nvdec.Vp9.Types
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{
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internal struct ModeInfo
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{
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// Common for both Inter and Intra blocks
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public BlockSize SbType;
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public PredictionMode Mode;
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public TxSize TxSize;
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public sbyte Skip;
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public sbyte SegmentId;
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public sbyte SegIdPredicted; // Valid only when TemporalUpdate is enabled
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// Only for Intra blocks
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public PredictionMode UvMode;
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// Only for Inter blocks
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public byte InterpFilter;
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// if ref_frame[idx] is equal to AltRefFrame then
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// MacroBlockD.BlockRef[idx] is an altref
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public Array2<sbyte> RefFrame;
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public Array2<Mv> Mv;
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public Array4<BModeInfo> Bmi;
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public PredictionMode GetYMode(int block)
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{
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return SbType < BlockSize.Block8x8 ? Bmi[block].Mode : Mode;
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}
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public TxSize GetUvTxSize(ref MacroBlockDPlane pd)
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{
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Debug.Assert(SbType < BlockSize.Block8x8 ||
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Luts.SsSizeLookup[(int)SbType][pd.SubsamplingX][pd.SubsamplingY] != BlockSize.BlockInvalid);
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return Luts.UvTxsizeLookup[(int)SbType][(int)TxSize][pd.SubsamplingX][pd.SubsamplingY];
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}
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public bool IsInterBlock()
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{
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return RefFrame[0] > Constants.IntraFrame;
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}
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public bool HasSecondRef()
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{
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return RefFrame[1] > Constants.IntraFrame;
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}
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private static readonly int[][] IdxNColumnToSubblock = new int[][]
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{
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new int[] { 1, 2 }, new int[] { 1, 3 }, new int[] { 3, 2 }, new int[] { 3, 3 }
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};
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// This function returns either the appropriate sub block or block's mv
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// on whether the block_size < 8x8 and we have check_sub_blocks set.
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public Mv GetSubBlockMv(int whichMv, int searchCol, int blockIdx)
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{
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return blockIdx >= 0 && SbType < BlockSize.Block8x8
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? Bmi[IdxNColumnToSubblock[blockIdx][searchCol == 0 ? 1 : 0]].Mv[whichMv]
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: Mv[whichMv];
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}
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}
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}
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