forked from Mirror/Ryujinx
4d02a2d2c0
* 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>
59 lines
1.8 KiB
C#
59 lines
1.8 KiB
C#
using System;
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using System.Diagnostics;
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using System.Numerics;
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using System.Runtime.CompilerServices;
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namespace Ryujinx.Graphics.Nvdec.Vp9.Common
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{
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internal static class BitUtils
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{
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// FIXME: Enable inlining here after AVX2 gather bug is fixed.
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// [MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static byte ClipPixel(int val)
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{
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return (byte)((val > 255) ? 255 : (val < 0) ? 0 : val);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static ushort ClipPixelHighbd(int val, int bd)
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{
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return bd switch
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{
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10 => (ushort)Math.Clamp(val, 0, 1023),
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12 => (ushort)Math.Clamp(val, 0, 4095),
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_ => (ushort)Math.Clamp(val, 0, 255)
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};
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static int RoundPowerOfTwo(int value, int n)
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{
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return (value + (1 << (n - 1))) >> n;
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static long RoundPowerOfTwo(long value, int n)
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{
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return (value + (1L << (n - 1))) >> n;
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static int AlignPowerOfTwo(int value, int n)
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{
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return (value + ((1 << n) - 1)) & ~((1 << n) - 1);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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private static int GetMsb(uint n)
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{
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Debug.Assert(n != 0);
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return 31 ^ BitOperations.LeadingZeroCount(n);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static int GetUnsignedBits(uint numValues)
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{
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return numValues > 0 ? GetMsb(numValues) + 1 : 0;
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}
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}
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}
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