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https://github.com/Ryujinx/Ryujinx.git
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66 lines
1.6 KiB
C#
66 lines
1.6 KiB
C#
using System;
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namespace Ryujinx.Graphics.Texture
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{
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public struct SizeInfo
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{
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private readonly int[] _mipOffsets;
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private readonly int[] _allOffsets;
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private readonly int _levels;
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public int LayerSize { get; }
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public int TotalSize { get; }
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public SizeInfo(int size)
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{
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_mipOffsets = new int[] { 0 };
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_allOffsets = new int[] { 0 };
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_levels = 1;
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LayerSize = size;
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TotalSize = size;
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}
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internal SizeInfo(
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int[] mipOffsets,
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int[] allOffsets,
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int levels,
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int layerSize,
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int totalSize)
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{
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_mipOffsets = mipOffsets;
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_allOffsets = allOffsets;
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_levels = levels;
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LayerSize = layerSize;
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TotalSize = totalSize;
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}
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public int GetMipOffset(int level)
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{
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if ((uint)level >= _mipOffsets.Length)
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{
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throw new ArgumentOutOfRangeException(nameof(level));
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}
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return _mipOffsets[level];
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}
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public bool FindView(int offset, int size, out int firstLayer, out int firstLevel)
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{
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int index = Array.BinarySearch(_allOffsets, offset);
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if (index < 0)
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{
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firstLayer = 0;
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firstLevel = 0;
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return false;
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}
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firstLayer = index / _levels;
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firstLevel = index - (firstLayer * _levels);
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return true;
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}
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}
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} |