mirror of
https://github.com/Ryujinx/Ryujinx.git
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* Initial NVDEC and VIC implementation * Update FFmpeg.AutoGen to 4.3.0 * Add nvdec dependencies for Windows * Unify some VP9 structures * Rename VP9 structure fields * Improvements to Video API * XML docs for Common.Memory * Remove now unused or redundant overloads from MemoryAccessor * NVDEC UV surface read/write scalar paths * Add FIXME comments about hacky things/stuff that will need to be fixed in the future * Cleaned up VP9 memory allocation * Remove some debug logs * Rename some VP9 structs * Remove unused struct * No need to compile Ryujinx.Graphics.Host1x with unsafe anymore * Name AsyncWorkQueue threads to make debugging easier * Make Vp9PictureInfo a ref struct * LayoutConverter no longer needs the depth argument (broken by rebase) * Pooling of VP9 buffers, plus fix a memory leak on VP9 * Really wish VS could rename projects properly... * Address feedback * Remove using * Catch OperationCanceledException * Add licensing informations * Add THIRDPARTY.md to release too Co-authored-by: Thog <me@thog.eu>
86 lines
2.6 KiB
C#
86 lines
2.6 KiB
C#
using Ryujinx.Graphics.Nvdec.Vp9.Common;
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using System;
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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 TileInfo
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{
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private const int MinTileWidthB64 = 4;
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private const int MaxTileWidthB64 = 64;
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public int MiRowStart, MiRowEnd;
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public int MiColStart, MiColEnd;
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public static int MiColsAlignedToSb(int nMis)
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{
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return BitUtils.AlignPowerOfTwo(nMis, Constants.MiBlockSizeLog2);
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}
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private static int GetTileOffset(int idx, int mis, int log2)
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{
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int sbCols = MiColsAlignedToSb(mis) >> Constants.MiBlockSizeLog2;
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int offset = ((idx * sbCols) >> log2) << Constants.MiBlockSizeLog2;
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return Math.Min(offset, mis);
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}
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public void SetRow(ref Vp9Common cm, int row)
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{
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MiRowStart = GetTileOffset(row, cm.MiRows, cm.Log2TileRows);
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MiRowEnd = GetTileOffset(row + 1, cm.MiRows, cm.Log2TileRows);
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}
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public void SetCol(ref Vp9Common cm, int col)
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{
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MiColStart = GetTileOffset(col, cm.MiCols, cm.Log2TileCols);
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MiColEnd = GetTileOffset(col + 1, cm.MiCols, cm.Log2TileCols);
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}
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public void Init(ref Vp9Common cm, int row, int col)
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{
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SetRow(ref cm, row);
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SetCol(ref cm, col);
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}
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// Checks that the given miRow, miCol and search point
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// are inside the borders of the tile.
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public bool IsInside(int miCol, int miRow, int miRows, ref Position miPos)
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{
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return !(miRow + miPos.Row < 0 ||
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miCol + miPos.Col < MiColStart ||
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miRow + miPos.Row >= miRows ||
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miCol + miPos.Col >= MiColEnd);
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}
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private static int GetMinLog2TileCols(int sb64Cols)
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{
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int minLog2 = 0;
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while ((MaxTileWidthB64 << minLog2) < sb64Cols)
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{
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++minLog2;
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}
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return minLog2;
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}
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private static int GetMaxLog2TileCols(int sb64Cols)
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{
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int maxLog2 = 1;
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while ((sb64Cols >> maxLog2) >= MinTileWidthB64)
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{
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++maxLog2;
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}
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return maxLog2 - 1;
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}
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public static void GetTileNBits(int miCols, ref int minLog2TileCols, ref int maxLog2TileCols)
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{
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int sb64Cols = MiColsAlignedToSb(miCols) >> Constants.MiBlockSizeLog2;
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minLog2TileCols = GetMinLog2TileCols(sb64Cols);
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maxLog2TileCols = GetMaxLog2TileCols(sb64Cols);
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Debug.Assert(minLog2TileCols <= maxLog2TileCols);
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}
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}
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}
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