misc: Move BitTricks methods into BitUtils

Cleanup DirtyHackCollection

src/Ryujinx.Common/BitTricks.cs

@@ -1,35 +0,0 @@
-namespace Ryujinx.Common
-{
-    public class BitTricks
-    {
-        // Never actually written bit packing logic before, so I looked it up.
-        // This code is from https://gist.github.com/Alan-FGR/04938e93e2bffdf5802ceb218a37c195
-        
-        public static ulong PackBitFields(uint[] values, byte[] bitFields)
-        {
-            ulong retVal = values[0]; //we set the first value right away
-            for (int f = 1; f < values.Length; f++)
-            {
-                retVal <<= bitFields[f]; // we shift the previous value
-                retVal += values[f];// and add our current value
-            }
-            return retVal;
-        }
-
-        public static uint[] UnpackBitFields(ulong packed, byte[] bitFields)
-        {
-            int fields = bitFields.Length - 1; // number of fields to unpack
-            uint[] retArr = new uint[fields + 1]; // init return array
-            int curPos = 0; // current field bit position (start)
-            int lastEnd; // position where last field ended
-            for (int f = fields; f >= 0; f--) // loop from last
-            {
-                lastEnd = curPos; // we store where the last value ended
-                curPos += bitFields[f]; // we get where the current value starts
-                int leftShift = 64 - curPos; // we figure how much left shift we gotta apply for the other numbers to overflow into oblivion
-                retArr[f] = (uint)((packed << leftShift) >> leftShift + lastEnd); // we do magic
-            }
-            return retArr;
-        }
-    }
-}

src/Ryujinx.Common/Configuration/DirtyHacks.cs

@@ -1,4 +1,5 @@
-using System;
+using Gommon;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 
@@ -14,12 +15,14 @@ namespace Ryujinx.Common.Configuration
     public record EnabledDirtyHack(DirtyHacks Hack, int Value)
     {
         public static readonly byte[] PackedFormat = [8, 32];
-        
-        public ulong Pack() => BitTricks.PackBitFields([(uint)Hack, (uint)Value], PackedFormat);
+
+        private uint[] Raw => [(uint)Hack, (uint)Value.CoerceAtLeast(0)];
+
+        public ulong Pack() => Raw.PackBitFields(PackedFormat);
 
         public static EnabledDirtyHack Unpack(ulong packedHack)
         {
-            var unpackedFields = BitTricks.UnpackBitFields(packedHack, PackedFormat);
+            var unpackedFields = packedHack.UnpackBitFields(PackedFormat);
             if (unpackedFields is not [var hack, var value])
                 throw new ArgumentException(nameof(packedHack));
             
@@ -29,26 +32,17 @@ namespace Ryujinx.Common.Configuration
 
     public class DirtyHackCollection : Dictionary<DirtyHacks, int>
     {
-        public DirtyHackCollection(EnabledDirtyHack[] hacks)
-        {
-            foreach ((DirtyHacks dirtyHacks, int value) in hacks)
-            {
-                Add(dirtyHacks, value);
-            }
-        }
-        
-        public DirtyHackCollection(ulong[] packedHacks)
-        {
-            foreach ((DirtyHacks dirtyHacks, int value) in packedHacks.Select(EnabledDirtyHack.Unpack))
-            {
-                Add(dirtyHacks, value);
-            }
-        }
+        public DirtyHackCollection(IEnumerable<EnabledDirtyHack> hacks) 
+            => hacks.ForEach(edh => Add(edh.Hack, edh.Value));
 
-        public ulong[] PackEntries() =>
-            this
-                .Select(it => 
-                    BitTricks.PackBitFields([(uint)it.Key, (uint)it.Value], EnabledDirtyHack.PackedFormat))
+        public DirtyHackCollection(ulong[] packedHacks) : this(packedHacks.Select(EnabledDirtyHack.Unpack)) {}
+
+        public ulong[] PackEntries() 
+            => Entries.Select(it => it.Pack()).ToArray();
+        
+        public EnabledDirtyHack[] Entries 
+            => this
+                .Select(it => new EnabledDirtyHack(it.Key, it.Value))
                 .ToArray();
 
         public static implicit operator DirtyHackCollection(EnabledDirtyHack[] hacks) => new(hacks);

src/Ryujinx.Common/Utilities/BitUtils.cs

@@ -40,5 +40,35 @@ namespace Ryujinx.Common
 
             return (value >> 32) | (value << 32);
         }
+        
+        // Never actually written bit packing logic before, so I looked it up.
+        // This code is from https://gist.github.com/Alan-FGR/04938e93e2bffdf5802ceb218a37c195
+        
+        public static ulong PackBitFields(this uint[] values, byte[] bitFields)
+        {
+            ulong retVal = values[0]; //we set the first value right away
+            for (int f = 1; f < values.Length; f++)
+            {
+                retVal <<= bitFields[f]; // we shift the previous value
+                retVal += values[f];// and add our current value
+            }
+            return retVal;
+        }
+
+        public static uint[] UnpackBitFields(this ulong packed, byte[] bitFields)
+        {
+            int fields = bitFields.Length - 1; // number of fields to unpack
+            uint[] retArr = new uint[fields + 1]; // init return array
+            int curPos = 0; // current field bit position (start)
+            int lastEnd; // position where last field ended
+            for (int f = fields; f >= 0; f--) // loop from last
+            {
+                lastEnd = curPos; // we store where the last value ended
+                curPos += bitFields[f]; // we get where the current value starts
+                int leftShift = 64 - curPos; // we figure how much left shift we gotta apply for the other numbers to overflow into oblivion
+                retArr[f] = (uint)((packed << leftShift) >> leftShift + lastEnd); // we do magic
+            }
+            return retArr;
+        }
     }
 }