Merge Latest Ryujinx (Unstable)

src/ARMeilleure/CodeGen/Arm64/CodeGenContext.cs

@@ -237,7 +237,7 @@ namespace ARMeilleure.CodeGen.Arm64
             long originalPosition = _stream.Position;
 
             _stream.Seek(0, SeekOrigin.Begin);
-            _stream.Read(code, 0, code.Length);
+            _stream.ReadExactly(code, 0, code.Length);
             _stream.Seek(originalPosition, SeekOrigin.Begin);
 
             RelocInfo relocInfo;

src/ARMeilleure/CodeGen/RegisterAllocators/LinearScanAllocator.cs

@@ -251,7 +251,20 @@ namespace ARMeilleure.CodeGen.RegisterAllocators
                 }
             }
 
-            int selectedReg = GetHighestValueIndex(freePositions);
+            // If this is a copy destination variable, we prefer the register used for the copy source.
+            // If the register is available, then the copy can be eliminated later as both source
+            // and destination will use the same register.
+            int selectedReg;
+
+            if (current.TryGetCopySourceRegister(out int preferredReg) && freePositions[preferredReg] >= current.GetEnd())
+            {
+                selectedReg = preferredReg;
+            }
+            else
+            {
+                selectedReg = GetHighestValueIndex(freePositions);
+            }
+
             int selectedNextUse = freePositions[selectedReg];
 
             // Intervals starts and ends at odd positions, unless they span an entire
@@ -431,7 +444,7 @@ namespace ARMeilleure.CodeGen.RegisterAllocators
             }
         }
 
-        private static int GetHighestValueIndex(Span<int> span)
+        private static int GetHighestValueIndex(ReadOnlySpan<int> span)
         {
             int highest = int.MinValue;
 
@@ -798,12 +811,12 @@ namespace ARMeilleure.CodeGen.RegisterAllocators
             // The "visited" state is stored in the MSB of the local's value.
             const ulong VisitedMask = 1ul << 63;
 
-            bool IsVisited(Operand local)
+            static bool IsVisited(Operand local)
             {
                 return (local.GetValueUnsafe() & VisitedMask) != 0;
             }
 
-            void SetVisited(Operand local)
+            static void SetVisited(Operand local)
             {
                 local.GetValueUnsafe() |= VisitedMask;
             }
@@ -826,9 +839,25 @@ namespace ARMeilleure.CodeGen.RegisterAllocators
                         {
                             dest.NumberLocal(_intervals.Count);
 
-                            _intervals.Add(new LiveInterval(dest));
+                            LiveInterval interval = new LiveInterval(dest);
+                            _intervals.Add(interval);
 
                             SetVisited(dest);
+
+                            // If this is a copy (or copy-like operation), set the copy source interval as well.
+                            // This is used for register preferencing later on, which allows the copy to be eliminated
+                            // in some cases.
+                            if (node.Instruction == Instruction.Copy || node.Instruction == Instruction.ZeroExtend32)
+                            {
+                                Operand source = node.GetSource(0);
+
+                                if (source.Kind == OperandKind.LocalVariable &&
+                                    source.GetLocalNumber() > 0 &&
+                                    (node.Instruction == Instruction.Copy || source.Type == OperandType.I32))
+                                {
+                                    interval.SetCopySource(_intervals[source.GetLocalNumber()]);
+                                }
+                            }
                         }
                     }
                 }

src/ARMeilleure/CodeGen/RegisterAllocators/LiveInterval.cs

@@ -19,6 +19,7 @@ namespace ARMeilleure.CodeGen.RegisterAllocators
             public LiveRange CurrRange;
 
             public LiveInterval Parent;
+            public LiveInterval CopySource;
 
             public UseList Uses;
             public LiveIntervalList Children;
@@ -37,6 +38,7 @@ namespace ARMeilleure.CodeGen.RegisterAllocators
         private ref LiveRange CurrRange => ref _data->CurrRange;
         private ref LiveRange PrevRange => ref _data->PrevRange;
         private ref LiveInterval Parent => ref _data->Parent;
+        private ref LiveInterval CopySource => ref _data->CopySource;
         private ref UseList Uses => ref _data->Uses;
         private ref LiveIntervalList Children => ref _data->Children;
 
@@ -78,6 +80,25 @@ namespace ARMeilleure.CodeGen.RegisterAllocators
             Register = register;
         }
 
+        public void SetCopySource(LiveInterval copySource)
+        {
+            CopySource = copySource;
+        }
+
+        public bool TryGetCopySourceRegister(out int copySourceRegIndex)
+        {
+            if (CopySource._data != null)
+            {
+                copySourceRegIndex = CopySource.Register.Index;
+
+                return true;
+            }
+
+            copySourceRegIndex = 0;
+
+            return false;
+        }
+
         public void Reset()
         {
             PrevRange = default;

src/ARMeilleure/CodeGen/X86/Assembler.cs

@@ -1444,7 +1444,7 @@ namespace ARMeilleure.CodeGen.X86
 
                 Span<byte> buffer = new byte[jump.JumpPosition - _stream.Position];
 
-                _stream.Read(buffer);
+                _stream.ReadExactly(buffer);
                 _stream.Seek(ReservedBytesForJump, SeekOrigin.Current);
 
                 codeStream.Write(buffer);

src/ARMeilleure/Decoders/OpCodeTable.cs

@@ -517,7 +517,10 @@ namespace ARMeilleure.Decoders
             SetA64("0x00111100>>>xxx100111xxxxxxxxxx", InstName.Sqrshrn_V,       InstEmit.Sqrshrn_V,       OpCodeSimdShImm.Create);
             SetA64("0111111100>>>xxx100011xxxxxxxxxx", InstName.Sqrshrun_S,      InstEmit.Sqrshrun_S,      OpCodeSimdShImm.Create);
             SetA64("0x10111100>>>xxx100011xxxxxxxxxx", InstName.Sqrshrun_V,      InstEmit.Sqrshrun_V,      OpCodeSimdShImm.Create);
+            SetA64("010111110>>>>xxx011101xxxxxxxxxx", InstName.Sqshl_Si,        InstEmit.Sqshl_Si,        OpCodeSimdShImm.Create);
             SetA64("0>001110<<1xxxxx010011xxxxxxxxxx", InstName.Sqshl_V,         InstEmit.Sqshl_V,         OpCodeSimdReg.Create);
+            SetA64("0000111100>>>xxx011101xxxxxxxxxx", InstName.Sqshl_Vi,        InstEmit.Sqshl_Vi,        OpCodeSimdShImm.Create);
+            SetA64("010011110>>>>xxx011101xxxxxxxxxx", InstName.Sqshl_Vi,        InstEmit.Sqshl_Vi,        OpCodeSimdShImm.Create);
             SetA64("0101111100>>>xxx100101xxxxxxxxxx", InstName.Sqshrn_S,        InstEmit.Sqshrn_S,        OpCodeSimdShImm.Create);
             SetA64("0x00111100>>>xxx100101xxxxxxxxxx", InstName.Sqshrn_V,        InstEmit.Sqshrn_V,        OpCodeSimdShImm.Create);
             SetA64("0111111100>>>xxx100001xxxxxxxxxx", InstName.Sqshrun_S,       InstEmit.Sqshrun_S,       OpCodeSimdShImm.Create);
@@ -743,6 +746,7 @@ namespace ARMeilleure.Decoders
             SetA32("<<<<01101000xxxxxxxxxxxxxx01xxxx", InstName.Pkh,     InstEmit32.Pkh,     OpCode32AluRsImm.Create);
             SetA32("11110101xx01xxxx1111xxxxxxxxxxxx", InstName.Pld,     InstEmit32.Nop,     OpCode32.Create);
             SetA32("11110111xx01xxxx1111xxxxxxx0xxxx", InstName.Pld,     InstEmit32.Nop,     OpCode32.Create);
+            SetA32("<<<<01100010xxxxxxxx11110001xxxx", InstName.Qadd16,  InstEmit32.Qadd16,  OpCode32AluReg.Create);
             SetA32("<<<<011011111111xxxx11110011xxxx", InstName.Rbit,    InstEmit32.Rbit,    OpCode32AluReg.Create);
             SetA32("<<<<011010111111xxxx11110011xxxx", InstName.Rev,     InstEmit32.Rev,     OpCode32AluReg.Create);
             SetA32("<<<<011010111111xxxx11111011xxxx", InstName.Rev16,   InstEmit32.Rev16,   OpCode32AluReg.Create);
@@ -819,6 +823,10 @@ namespace ARMeilleure.Decoders
             SetA32("<<<<00000100xxxxxxxxxxxx1001xxxx", InstName.Umaal,   InstEmit32.Umaal,   OpCode32AluUmull.Create);
             SetA32("<<<<0000101xxxxxxxxxxxxx1001xxxx", InstName.Umlal,   InstEmit32.Umlal,   OpCode32AluUmull.Create);
             SetA32("<<<<0000100xxxxxxxxxxxxx1001xxxx", InstName.Umull,   InstEmit32.Umull,   OpCode32AluUmull.Create);
+            SetA32("<<<<01100110xxxxxxxx11110001xxxx", InstName.Uqadd16, InstEmit32.Uqadd16, OpCode32AluReg.Create);
+            SetA32("<<<<01100110xxxxxxxx11111001xxxx", InstName.Uqadd8,  InstEmit32.Uqadd8,  OpCode32AluReg.Create);
+            SetA32("<<<<01100110xxxxxxxx11110111xxxx", InstName.Uqsub16, InstEmit32.Uqsub16, OpCode32AluReg.Create);
+            SetA32("<<<<01100110xxxxxxxx11111111xxxx", InstName.Uqsub8,  InstEmit32.Uqsub8,  OpCode32AluReg.Create);
             SetA32("<<<<0110111xxxxxxxxxxxxxxx01xxxx", InstName.Usat,    InstEmit32.Usat,    OpCode32Sat.Create);
             SetA32("<<<<01101110xxxxxxxx11110011xxxx", InstName.Usat16,  InstEmit32.Usat16,  OpCode32Sat16.Create);
             SetA32("<<<<01100101xxxxxxxx11111111xxxx", InstName.Usub8,   InstEmit32.Usub8,   OpCode32AluReg.Create);
@@ -872,6 +880,7 @@ namespace ARMeilleure.Decoders
             SetVfp("<<<<11100x10xxxxxxxx101xx1x0xxxx", InstName.Vnmul,  InstEmit32.Vnmul_S,  OpCode32SimdRegS.Create,        OpCode32SimdRegS.CreateT32);
             SetVfp("111111101x1110xxxxxx101x01x0xxxx", InstName.Vrint,  InstEmit32.Vrint_RM, OpCode32SimdS.Create,           OpCode32SimdS.CreateT32);
             SetVfp("<<<<11101x110110xxxx101x11x0xxxx", InstName.Vrint,  InstEmit32.Vrint_Z,  OpCode32SimdS.Create,           OpCode32SimdS.CreateT32);
+            SetVfp("<<<<11101x110110xxxx101x01x0xxxx", InstName.Vrintr, InstEmit32.Vrintr_S, OpCode32SimdS.Create,           OpCode32SimdS.CreateT32);
             SetVfp("<<<<11101x110111xxxx101x01x0xxxx", InstName.Vrintx, InstEmit32.Vrintx_S, OpCode32SimdS.Create,           OpCode32SimdS.CreateT32);
             SetVfp("<<<<11101x110001xxxx101x11x0xxxx", InstName.Vsqrt,  InstEmit32.Vsqrt_S,  OpCode32SimdS.Create,           OpCode32SimdS.CreateT32);
             SetVfp("111111100xxxxxxxxxxx101xx0x0xxxx", InstName.Vsel,   InstEmit32.Vsel,     OpCode32SimdSel.Create,         OpCode32SimdSel.CreateT32);
@@ -992,6 +1001,7 @@ namespace ARMeilleure.Decoders
             SetAsimd("1111001x1x000xxxxxxx<<x10x01xxxx", InstName.Vorr,        InstEmit32.Vorr_II,      OpCode32SimdImm.Create,         OpCode32SimdImm.CreateT32);
             SetAsimd("111100100x<<xxxxxxxx1011x0x1xxxx", InstName.Vpadd,       InstEmit32.Vpadd_I,      OpCode32SimdReg.Create,         OpCode32SimdReg.CreateT32);
             SetAsimd("111100110x00xxxxxxxx1101x0x0xxxx", InstName.Vpadd,       InstEmit32.Vpadd_V,      OpCode32SimdReg.Create,         OpCode32SimdReg.CreateT32);
+            SetAsimd("111100111x11<<00xxxx0110xxx0xxxx", InstName.Vpadal,      InstEmit32.Vpadal,       OpCode32SimdCmpZ.Create,        OpCode32SimdCmpZ.CreateT32);
             SetAsimd("111100111x11<<00xxxx0010xxx0xxxx", InstName.Vpaddl,      InstEmit32.Vpaddl,       OpCode32SimdCmpZ.Create,        OpCode32SimdCmpZ.CreateT32);
             SetAsimd("1111001x0x<<xxxxxxxx1010x0x0xxxx", InstName.Vpmax,       InstEmit32.Vpmax_I,      OpCode32SimdReg.Create,         OpCode32SimdReg.CreateT32);
             SetAsimd("111100110x00xxxxxxxx1111x0x0xxxx", InstName.Vpmax,       InstEmit32.Vpmax_V,      OpCode32SimdReg.Create,         OpCode32SimdReg.CreateT32);
@@ -1002,6 +1012,8 @@ namespace ARMeilleure.Decoders
             SetAsimd("111100100x10xxxxxxxx1011xxx0xxxx", InstName.Vqdmulh,     InstEmit32.Vqdmulh,      OpCode32SimdReg.Create,         OpCode32SimdReg.CreateT32);
             SetAsimd("111100111x11<<10xxxx00101xx0xxx0", InstName.Vqmovn,      InstEmit32.Vqmovn,       OpCode32SimdMovn.Create,        OpCode32SimdMovn.CreateT32);
             SetAsimd("111100111x11<<10xxxx001001x0xxx0", InstName.Vqmovun,     InstEmit32.Vqmovun,      OpCode32SimdMovn.Create,        OpCode32SimdMovn.CreateT32);
+            SetAsimd("111100110x01xxxxxxxx1011xxx0xxxx", InstName.Vqrdmulh,    InstEmit32.Vqrdmulh,     OpCode32SimdReg.Create,         OpCode32SimdReg.CreateT32);
+            SetAsimd("111100110x10xxxxxxxx1011xxx0xxxx", InstName.Vqrdmulh,    InstEmit32.Vqrdmulh,     OpCode32SimdReg.Create,         OpCode32SimdReg.CreateT32);
             SetAsimd("1111001x1x>>>xxxxxxx100101x1xxx0", InstName.Vqrshrn,     InstEmit32.Vqrshrn,      OpCode32SimdShImmNarrow.Create, OpCode32SimdShImmNarrow.CreateT32);
             SetAsimd("111100111x>>>xxxxxxx100001x1xxx0", InstName.Vqrshrun,    InstEmit32.Vqrshrun,     OpCode32SimdShImmNarrow.Create, OpCode32SimdShImmNarrow.CreateT32);
             SetAsimd("1111001x1x>>>xxxxxxx100100x1xxx0", InstName.Vqshrn,      InstEmit32.Vqshrn,       OpCode32SimdShImmNarrow.Create, OpCode32SimdShImmNarrow.CreateT32);
@@ -1023,8 +1035,10 @@ namespace ARMeilleure.Decoders
             SetAsimd("111100101x>>>xxxxxxx0101>xx1xxxx", InstName.Vshl,        InstEmit32.Vshl,         OpCode32SimdShImm.Create,       OpCode32SimdShImm.CreateT32);
             SetAsimd("1111001x0xxxxxxxxxxx0100xxx0xxxx", InstName.Vshl,        InstEmit32.Vshl_I,       OpCode32SimdReg.Create,         OpCode32SimdReg.CreateT32);
             SetAsimd("1111001x1x>>>xxxxxxx101000x1xxxx", InstName.Vshll,       InstEmit32.Vshll,        OpCode32SimdShImmLong.Create,   OpCode32SimdShImmLong.CreateT32); // A1 encoding.
+            SetAsimd("111100111x11<<10xxxx001100x0xxxx", InstName.Vshll,       InstEmit32.Vshll2,       OpCode32SimdMovn.Create,        OpCode32SimdMovn.CreateT32); // A2 encoding.
             SetAsimd("1111001x1x>>>xxxxxxx0000>xx1xxxx", InstName.Vshr,        InstEmit32.Vshr,         OpCode32SimdShImm.Create,       OpCode32SimdShImm.CreateT32);
             SetAsimd("111100101x>>>xxxxxxx100000x1xxx0", InstName.Vshrn,       InstEmit32.Vshrn,        OpCode32SimdShImmNarrow.Create, OpCode32SimdShImmNarrow.CreateT32);
+            SetAsimd("111100111x>>>xxxxxxx0101>xx1xxxx", InstName.Vsli,        InstEmit32.Vsli_I,       OpCode32SimdShImm.Create,       OpCode32SimdShImm.CreateT32);
             SetAsimd("1111001x1x>>>xxxxxxx0001>xx1xxxx", InstName.Vsra,        InstEmit32.Vsra,         OpCode32SimdShImm.Create,       OpCode32SimdShImm.CreateT32);
             SetAsimd("111101001x00xxxxxxxx0000xxx0xxxx", InstName.Vst1,        InstEmit32.Vst1,         OpCode32SimdMemSingle.Create,   OpCode32SimdMemSingle.CreateT32);
             SetAsimd("111101001x00xxxxxxxx0100xx0xxxxx", InstName.Vst1,        InstEmit32.Vst1,         OpCode32SimdMemSingle.Create,   OpCode32SimdMemSingle.CreateT32);
@@ -1049,6 +1063,7 @@ namespace ARMeilleure.Decoders
             SetAsimd("111100100x10xxxxxxxx1101xxx0xxxx", InstName.Vsub,        InstEmit32.Vsub_V,       OpCode32SimdReg.Create,         OpCode32SimdReg.CreateT32);
             SetAsimd("1111001x1x<<xxxxxxx00010x0x0xxxx", InstName.Vsubl,       InstEmit32.Vsubl_I,      OpCode32SimdRegLong.Create,     OpCode32SimdRegLong.CreateT32);
             SetAsimd("1111001x1x<<xxxxxxx00011x0x0xxxx", InstName.Vsubw,       InstEmit32.Vsubw_I,      OpCode32SimdRegWide.Create,     OpCode32SimdRegWide.CreateT32);
+            SetAsimd("111100111x110010xxxx00000xx0xxxx", InstName.Vswp,        InstEmit32.Vswp,         OpCode32Simd.Create,            OpCode32Simd.CreateT32);
             SetAsimd("111100111x11xxxxxxxx10xxxxx0xxxx", InstName.Vtbl,        InstEmit32.Vtbl,         OpCode32SimdTbl.Create,         OpCode32SimdTbl.CreateT32);
             SetAsimd("111100111x11<<10xxxx00001xx0xxxx", InstName.Vtrn,        InstEmit32.Vtrn,         OpCode32SimdCmpZ.Create,        OpCode32SimdCmpZ.CreateT32);
             SetAsimd("111100100x<<xxxxxxxx1000xxx1xxxx", InstName.Vtst,        InstEmit32.Vtst,         OpCode32SimdReg.Create,         OpCode32SimdReg.CreateT32);

src/ARMeilleure/Instructions/InstEmitAlu32.cs

@@ -2,6 +2,8 @@ using ARMeilleure.Decoders;
 using ARMeilleure.IntermediateRepresentation;
 using ARMeilleure.State;
 using ARMeilleure.Translation;
+using System;
+using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
 using static ARMeilleure.Instructions.InstEmitAluHelper;
 using static ARMeilleure.Instructions.InstEmitHelper;
@@ -19,6 +21,12 @@ namespace ARMeilleure.Instructions
             Operand n = GetAluN(context);
             Operand m = GetAluM(context, setCarry: false);
 
+            if (op.Rn == RegisterAlias.Aarch32Pc && op is OpCodeT32AluImm12)
+            {
+                // For ADR, PC is always 4 bytes aligned, even in Thumb mode.
+                n = context.BitwiseAnd(n, Const(~3u));
+            }
+
             Operand res = context.Add(n, m);
 
             if (ShouldSetFlags(context))
@@ -284,6 +292,16 @@ namespace ARMeilleure.Instructions
             EmitAluStore(context, res);
         }
 
+        public static void Qadd16(ArmEmitterContext context)
+        {
+            OpCode32AluReg op = (OpCode32AluReg)context.CurrOp;
+
+            SetIntA32(context, op.Rd, EmitSigned16BitPair(context, GetIntA32(context, op.Rn), GetIntA32(context, op.Rm), (d, n, m) =>
+            {
+                EmitSaturateRange(context, d, context.Add(n, m), 16, unsigned: false, setQ: false);
+            }));
+        }
+
         public static void Rbit(ArmEmitterContext context)
         {
             Operand m = GetAluM(context);
@@ -467,6 +485,12 @@ namespace ARMeilleure.Instructions
             Operand n = GetAluN(context);
             Operand m = GetAluM(context, setCarry: false);
 
+            if (op.Rn == RegisterAlias.Aarch32Pc && op is OpCodeT32AluImm12)
+            {
+                // For ADR, PC is always 4 bytes aligned, even in Thumb mode.
+                n = context.BitwiseAnd(n, Const(~3u));
+            }
+
             Operand res = context.Subtract(n, m);
 
             if (ShouldSetFlags(context))
@@ -546,6 +570,46 @@ namespace ARMeilleure.Instructions
             EmitHsub8(context, unsigned: true);
         }
 
+        public static void Uqadd16(ArmEmitterContext context)
+        {
+            OpCode32AluReg op = (OpCode32AluReg)context.CurrOp;
+
+            SetIntA32(context, op.Rd, EmitUnsigned16BitPair(context, GetIntA32(context, op.Rn), GetIntA32(context, op.Rm), (d, n, m) =>
+            {
+                EmitSaturateUqadd(context, d, context.Add(n, m), 16);
+            }));
+        }
+
+        public static void Uqadd8(ArmEmitterContext context)
+        {
+            OpCode32AluReg op = (OpCode32AluReg)context.CurrOp;
+
+            SetIntA32(context, op.Rd, EmitUnsigned8BitPair(context, GetIntA32(context, op.Rn), GetIntA32(context, op.Rm), (d, n, m) =>
+            {
+                EmitSaturateUqadd(context, d, context.Add(n, m), 8);
+            }));
+        }
+
+        public static void Uqsub16(ArmEmitterContext context)
+        {
+            OpCode32AluReg op = (OpCode32AluReg)context.CurrOp;
+
+            SetIntA32(context, op.Rd, EmitUnsigned16BitPair(context, GetIntA32(context, op.Rn), GetIntA32(context, op.Rm), (d, n, m) =>
+            {
+                EmitSaturateUqsub(context, d, context.Subtract(n, m), 16);
+            }));
+        }
+
+        public static void Uqsub8(ArmEmitterContext context)
+        {
+            OpCode32AluReg op = (OpCode32AluReg)context.CurrOp;
+
+            SetIntA32(context, op.Rd, EmitUnsigned8BitPair(context, GetIntA32(context, op.Rn), GetIntA32(context, op.Rm), (d, n, m) =>
+            {
+                EmitSaturateUqsub(context, d, context.Subtract(n, m), 8);
+            }));
+        }
+
         public static void Usat(ArmEmitterContext context)
         {
             OpCode32Sat op = (OpCode32Sat)context.CurrOp;
@@ -922,6 +986,251 @@ namespace ARMeilleure.Instructions
             }
         }
 
+        private static void EmitSaturateRange(ArmEmitterContext context, Operand result, Operand value, uint saturateTo, bool unsigned, bool setQ = true)
+        {
+            Debug.Assert(saturateTo <= 32);
+            Debug.Assert(!unsigned || saturateTo < 32);
+
+            if (!unsigned && saturateTo == 32)
+            {
+                // No saturation possible for this case.
+
+                context.Copy(result, value);
+
+                return;
+            }
+            else if (saturateTo == 0)
+            {
+                // Result is always zero if we saturate 0 bits.
+
+                context.Copy(result, Const(0));
+
+                return;
+            }
+
+            Operand satValue;
+
+            if (unsigned)
+            {
+                // Negative values always saturate (to zero).
+                // So we must always ignore the sign bit when masking, so that the truncated value will differ from the original one.
+
+                satValue = context.BitwiseAnd(value, Const((int)(uint.MaxValue >> (32 - (int)saturateTo))));
+            }
+            else
+            {
+                satValue = context.ShiftLeft(value, Const(32 - (int)saturateTo));
+                satValue = context.ShiftRightSI(satValue, Const(32 - (int)saturateTo));
+            }
+
+            // If the result is 0, the values are equal and we don't need saturation.
+            Operand lblNoSat = Label();
+            context.BranchIfFalse(lblNoSat, context.Subtract(value, satValue));
+
+            // Saturate and set Q flag.
+            if (unsigned)
+            {
+                if (saturateTo == 31)
+                {
+                    // Only saturation case possible when going from 32 bits signed to 32 or 31 bits unsigned
+                    // is when the signed input is negative, as all positive values are representable on a 31 bits range.
+
+                    satValue = Const(0);
+                }
+                else
+                {
+                    satValue = context.ShiftRightSI(value, Const(31));
+                    satValue = context.BitwiseNot(satValue);
+                    satValue = context.ShiftRightUI(satValue, Const(32 - (int)saturateTo));
+                }
+            }
+            else
+            {
+                if (saturateTo == 1)
+                {
+                    satValue = context.ShiftRightSI(value, Const(31));
+                }
+                else
+                {
+                    satValue = Const(uint.MaxValue >> (33 - (int)saturateTo));
+                    satValue = context.BitwiseExclusiveOr(satValue, context.ShiftRightSI(value, Const(31)));
+                }
+            }
+
+            if (setQ)
+            {
+                SetFlag(context, PState.QFlag, Const(1));
+            }
+
+            context.Copy(result, satValue);
+
+            Operand lblExit = Label();
+            context.Branch(lblExit);
+
+            context.MarkLabel(lblNoSat);
+
+            context.Copy(result, value);
+
+            context.MarkLabel(lblExit);
+        }
+
+        private static void EmitSaturateUqadd(ArmEmitterContext context, Operand result, Operand value, uint saturateTo)
+        {
+            Debug.Assert(saturateTo <= 32);
+
+            if (saturateTo == 32)
+            {
+                // No saturation possible for this case.
+
+                context.Copy(result, value);
+
+                return;
+            }
+            else if (saturateTo == 0)
+            {
+                // Result is always zero if we saturate 0 bits.
+
+                context.Copy(result, Const(0));
+
+                return;
+            }
+
+            // If the result is 0, the values are equal and we don't need saturation.
+            Operand lblNoSat = Label();
+            context.BranchIfFalse(lblNoSat, context.ShiftRightUI(value, Const((int)saturateTo)));
+
+            // Saturate.
+            context.Copy(result, Const(uint.MaxValue >> (32 - (int)saturateTo)));
+
+            Operand lblExit = Label();
+            context.Branch(lblExit);
+
+            context.MarkLabel(lblNoSat);
+
+            context.Copy(result, value);
+
+            context.MarkLabel(lblExit);
+        }
+
+        private static void EmitSaturateUqsub(ArmEmitterContext context, Operand result, Operand value, uint saturateTo)
+        {
+            Debug.Assert(saturateTo <= 32);
+
+            if (saturateTo == 32)
+            {
+                // No saturation possible for this case.
+
+                context.Copy(result, value);
+
+                return;
+            }
+            else if (saturateTo == 0)
+            {
+                // Result is always zero if we saturate 0 bits.
+
+                context.Copy(result, Const(0));
+
+                return;
+            }
+
+            // If the result is 0, the values are equal and we don't need saturation.
+            Operand lblNoSat = Label();
+            context.BranchIf(lblNoSat, value, Const(0), Comparison.GreaterOrEqual);
+
+            // Saturate.
+            // Assumes that the value can only underflow, since this is only used for unsigned subtraction.
+            context.Copy(result, Const(0));
+
+            Operand lblExit = Label();
+            context.Branch(lblExit);
+
+            context.MarkLabel(lblNoSat);
+
+            context.Copy(result, value);
+
+            context.MarkLabel(lblExit);
+        }
+
+        private static Operand EmitSigned16BitPair(ArmEmitterContext context, Operand rn, Operand rm, Action<Operand, Operand, Operand> elementAction)
+        {
+            Operand tempD = context.AllocateLocal(OperandType.I32);
+
+            Operand tempN = context.SignExtend16(OperandType.I32, rn);
+            Operand tempM = context.SignExtend16(OperandType.I32, rm);
+            elementAction(tempD, tempN, tempM);
+            Operand tempD2 = context.ZeroExtend16(OperandType.I32, tempD);
+
+            tempN = context.ShiftRightSI(rn, Const(16));
+            tempM = context.ShiftRightSI(rm, Const(16));
+            elementAction(tempD, tempN, tempM);
+            return context.BitwiseOr(tempD2, context.ShiftLeft(tempD, Const(16)));
+        }
+
+        private static Operand EmitUnsigned16BitPair(ArmEmitterContext context, Operand rn, Operand rm, Action<Operand, Operand, Operand> elementAction)
+        {
+            Operand tempD = context.AllocateLocal(OperandType.I32);
+
+            Operand tempN = context.ZeroExtend16(OperandType.I32, rn);
+            Operand tempM = context.ZeroExtend16(OperandType.I32, rm);
+            elementAction(tempD, tempN, tempM);
+            Operand tempD2 = context.ZeroExtend16(OperandType.I32, tempD);
+
+            tempN = context.ShiftRightUI(rn, Const(16));
+            tempM = context.ShiftRightUI(rm, Const(16));
+            elementAction(tempD, tempN, tempM);
+            return context.BitwiseOr(tempD2, context.ShiftLeft(tempD, Const(16)));
+        }
+
+        private static Operand EmitSigned8BitPair(ArmEmitterContext context, Operand rn, Operand rm, Action<Operand, Operand, Operand> elementAction)
+        {
+            return Emit8BitPair(context, rn, rm, elementAction, unsigned: false);
+        }
+
+        private static Operand EmitUnsigned8BitPair(ArmEmitterContext context, Operand rn, Operand rm, Action<Operand, Operand, Operand> elementAction)
+        {
+            return Emit8BitPair(context, rn, rm, elementAction, unsigned: true);
+        }
+
+        private static Operand Emit8BitPair(ArmEmitterContext context, Operand rn, Operand rm, Action<Operand, Operand, Operand> elementAction, bool unsigned)
+        {
+            Operand tempD = context.AllocateLocal(OperandType.I32);
+            Operand result = default;
+
+            for (int b = 0; b < 4; b++)
+            {
+                Operand nByte = b != 0 ? context.ShiftRightUI(rn, Const(b * 8)) : rn;
+                Operand mByte = b != 0 ? context.ShiftRightUI(rm, Const(b * 8)) : rm;
+
+                if (unsigned)
+                {
+                    nByte = context.ZeroExtend8(OperandType.I32, nByte);
+                    mByte = context.ZeroExtend8(OperandType.I32, mByte);
+                }
+                else
+                {
+                    nByte = context.SignExtend8(OperandType.I32, nByte);
+                    mByte = context.SignExtend8(OperandType.I32, mByte);
+                }
+
+                elementAction(tempD, nByte, mByte);
+
+                if (b == 0)
+                {
+                    result = context.ZeroExtend8(OperandType.I32, tempD);
+                }
+                else if (b < 3)
+                {
+                    result = context.BitwiseOr(result, context.ShiftLeft(context.ZeroExtend8(OperandType.I32, tempD), Const(b * 8)));
+                }
+                else
+                {
+                    result = context.BitwiseOr(result, context.ShiftLeft(tempD, Const(24)));
+                }
+            }
+
+            return result;
+        }
+
         private static void EmitAluStore(ArmEmitterContext context, Operand value)
         {
             IOpCode32Alu op = (IOpCode32Alu)context.CurrOp;

src/ARMeilleure/Instructions/InstEmitMemoryHelper.cs

@@ -403,19 +403,25 @@ namespace ARMeilleure.Instructions
             {
                 return EmitHostMappedPointer(context, address);
             }
-            else if (context.Memory.Type == MemoryManagerType.HostTracked)
+            else if (context.Memory.Type.IsHostTracked())
             {
+                if (address.Type == OperandType.I32)
+                {
+                    address = context.ZeroExtend32(OperandType.I64, address);
+                }
+
+                if (context.Memory.Type == MemoryManagerType.HostTracked)
+                {
+                    Operand mask = Const(ulong.MaxValue >> (64 - context.Memory.AddressSpaceBits));
+                    address = context.BitwiseAnd(address, mask);
+                }
+
                 Operand ptBase = !context.HasPtc
                     ? Const(context.Memory.PageTablePointer.ToInt64())
                     : Const(context.Memory.PageTablePointer.ToInt64(), Ptc.PageTableSymbol);
 
                 Operand ptOffset = context.ShiftRightUI(address, Const(PageBits));
 
-                if (ptOffset.Type == OperandType.I32)
-                {
-                    ptOffset = context.ZeroExtend32(OperandType.I64, ptOffset);
-                }
-
                 return context.Add(address, context.Load(OperandType.I64, context.Add(ptBase, context.ShiftLeft(ptOffset, Const(3)))));
             }
 

src/ARMeilleure/Instructions/InstEmitSimdArithmetic.cs

@@ -2426,7 +2426,11 @@ namespace ARMeilleure.Instructions
             }
             else if (Optimizations.FastFP && Optimizations.UseSse41 && sizeF == 0)
             {
-                Operand res = EmitSse41Round32Exp8OpF(context, context.AddIntrinsic(Intrinsic.X86Rsqrtss, GetVec(op.Rn)), scalar: true);
+                // RSQRTSS handles subnormals as zero, which differs from Arm, so we can't use it here.
+
+                Operand res = context.AddIntrinsic(Intrinsic.X86Sqrtss, GetVec(op.Rn));
+                res = context.AddIntrinsic(Intrinsic.X86Rcpss, res);
+                res = EmitSse41Round32Exp8OpF(context, res, scalar: true);
 
                 context.Copy(GetVec(op.Rd), context.VectorZeroUpper96(res));
             }
@@ -2451,7 +2455,11 @@ namespace ARMeilleure.Instructions
             }
             else if (Optimizations.FastFP && Optimizations.UseSse41 && sizeF == 0)
             {
-                Operand res = EmitSse41Round32Exp8OpF(context, context.AddIntrinsic(Intrinsic.X86Rsqrtps, GetVec(op.Rn)), scalar: false);
+                // RSQRTPS handles subnormals as zero, which differs from Arm, so we can't use it here.
+
+                Operand res = context.AddIntrinsic(Intrinsic.X86Sqrtps, GetVec(op.Rn));
+                res = context.AddIntrinsic(Intrinsic.X86Rcpps, res);
+                res = EmitSse41Round32Exp8OpF(context, res, scalar: false);
 
                 if (op.RegisterSize == RegisterSize.Simd64)
                 {

src/ARMeilleure/Instructions/InstEmitSimdArithmetic32.cs

@@ -1115,6 +1115,13 @@ namespace ARMeilleure.Instructions
             }
         }
 
+        public static void Vpadal(ArmEmitterContext context)
+        {
+            OpCode32Simd op = (OpCode32Simd)context.CurrOp;
+
+            EmitVectorPairwiseTernaryLongOpI32(context, (op1, op2, op3) => context.Add(context.Add(op1, op2), op3), op.Opc != 1);
+        }
+
         public static void Vpaddl(ArmEmitterContext context)
         {
             OpCode32Simd op = (OpCode32Simd)context.CurrOp;
@@ -1239,6 +1246,33 @@ namespace ARMeilleure.Instructions
             EmitVectorUnaryNarrowOp32(context, (op1) => EmitSatQ(context, op1, 8 << op.Size, signedSrc: true, signedDst: false), signed: true);
         }
 
+        public static void Vqrdmulh(ArmEmitterContext context)
+        {
+            OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
+            int eSize = 8 << op.Size;
+
+            EmitVectorBinaryOpI32(context, (op1, op2) =>
+            {
+                if (op.Size == 2)
+                {
+                    op1 = context.SignExtend32(OperandType.I64, op1);
+                    op2 = context.SignExtend32(OperandType.I64, op2);
+                }
+
+                Operand res = context.Multiply(op1, op2);
+                res = context.Add(res, Const(res.Type, 1L << (eSize - 2)));
+                res = context.ShiftRightSI(res, Const(eSize - 1));
+                res = EmitSatQ(context, res, eSize, signedSrc: true, signedDst: true);
+
+                if (op.Size == 2)
+                {
+                    res = context.ConvertI64ToI32(res);
+                }
+
+                return res;
+            }, signed: true);
+        }
+
         public static void Vqsub(ArmEmitterContext context)
         {
             OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;

src/ARMeilleure/Instructions/InstEmitSimdCvt32.cs

@@ -578,6 +578,22 @@ namespace ARMeilleure.Instructions
             }
         }
 
+        // VRINTR (floating-point).
+        public static void Vrintr_S(ArmEmitterContext context)
+        {
+            if (Optimizations.UseAdvSimd)
+            {
+                InstEmitSimdHelper32Arm64.EmitScalarUnaryOpF32(context, Intrinsic.Arm64FrintiS);
+            }
+            else
+            {
+                EmitScalarUnaryOpF32(context, (op1) =>
+                {
+                    return EmitRoundByRMode(context, op1);
+                });
+            }
+        }
+
         // VRINTZ (floating-point).
         public static void Vrint_Z(ArmEmitterContext context)
         {

src/ARMeilleure/Instructions/InstEmitSimdHelper32.cs

@@ -673,6 +673,35 @@ namespace ARMeilleure.Instructions
             context.Copy(GetVecA32(op.Qd), res);
         }
 
+        public static void EmitVectorPairwiseTernaryLongOpI32(ArmEmitterContext context, Func3I emit, bool signed)
+        {
+            OpCode32Simd op = (OpCode32Simd)context.CurrOp;
+
+            int elems = op.GetBytesCount() >> op.Size;
+            int pairs = elems >> 1;
+
+            Operand res = GetVecA32(op.Qd);
+
+            for (int index = 0; index < pairs; index++)
+            {
+                int pairIndex = index * 2;
+                Operand m1 = EmitVectorExtract32(context, op.Qm, op.Im + pairIndex, op.Size, signed);
+                Operand m2 = EmitVectorExtract32(context, op.Qm, op.Im + pairIndex + 1, op.Size, signed);
+
+                if (op.Size == 2)
+                {
+                    m1 = signed ? context.SignExtend32(OperandType.I64, m1) : context.ZeroExtend32(OperandType.I64, m1);
+                    m2 = signed ? context.SignExtend32(OperandType.I64, m2) : context.ZeroExtend32(OperandType.I64, m2);
+                }
+
+                Operand d1 = EmitVectorExtract32(context, op.Qd, op.Id + index, op.Size + 1, signed);
+
+                res = EmitVectorInsert(context, res, emit(m1, m2, d1), op.Id + index, op.Size + 1);
+            }
+
+            context.Copy(GetVecA32(op.Qd), res);
+        }
+
         // Narrow
 
         public static void EmitVectorUnaryNarrowOp32(ArmEmitterContext context, Func1I emit, bool signed = false)

src/ARMeilleure/Instructions/InstEmitSimdMove32.cs

@@ -191,6 +191,26 @@ namespace ARMeilleure.Instructions
             context.Copy(GetVecA32(op.Qd), res);
         }
 
+        public static void Vswp(ArmEmitterContext context)
+        {
+            OpCode32Simd op = (OpCode32Simd)context.CurrOp;
+
+            if (op.Q)
+            {
+                Operand temp = context.Copy(GetVecA32(op.Qd));
+
+                context.Copy(GetVecA32(op.Qd), GetVecA32(op.Qm));
+                context.Copy(GetVecA32(op.Qm), temp);
+            }
+            else
+            {
+                Operand temp = ExtractScalar(context, OperandType.I64, op.Vd);
+
+                InsertScalar(context, op.Vd, ExtractScalar(context, OperandType.I64, op.Vm));
+                InsertScalar(context, op.Vm, temp);
+            }
+        }
+
         public static void Vtbl(ArmEmitterContext context)
         {
             OpCode32SimdTbl op = (OpCode32SimdTbl)context.CurrOp;

src/ARMeilleure/Instructions/InstEmitSimdShift.cs

@@ -116,7 +116,7 @@ namespace ARMeilleure.Instructions
             }
             else if (shift >= eSize)
             {
-                if ((op.RegisterSize == RegisterSize.Simd64))
+                if (op.RegisterSize == RegisterSize.Simd64)
                 {
                     Operand res = context.VectorZeroUpper64(GetVec(op.Rd));
 
@@ -359,6 +359,16 @@ namespace ARMeilleure.Instructions
             }
         }
 
+        public static void Sqshl_Si(ArmEmitterContext context)
+        {
+            EmitShlImmOp(context, signedDst: true, ShlRegFlags.Signed | ShlRegFlags.Scalar | ShlRegFlags.Saturating);
+        }
+
+        public static void Sqshl_Vi(ArmEmitterContext context)
+        {
+            EmitShlImmOp(context, signedDst: true, ShlRegFlags.Signed | ShlRegFlags.Saturating);
+        }
+
         public static void Sqshrn_S(ArmEmitterContext context)
         {
             if (Optimizations.UseAdvSimd)
@@ -1593,6 +1603,99 @@ namespace ARMeilleure.Instructions
             Saturating = 1 << 3,
         }
 
+        private static void EmitShlImmOp(ArmEmitterContext context, bool signedDst, ShlRegFlags flags = ShlRegFlags.None)
+        {
+            bool scalar = flags.HasFlag(ShlRegFlags.Scalar);
+            bool signed = flags.HasFlag(ShlRegFlags.Signed);
+            bool saturating = flags.HasFlag(ShlRegFlags.Saturating);
+
+            OpCodeSimdShImm op = (OpCodeSimdShImm)context.CurrOp;
+
+            Operand res = context.VectorZero();
+
+            int elems = !scalar ? op.GetBytesCount() >> op.Size : 1;
+
+            for (int index = 0; index < elems; index++)
+            {
+                Operand ne = EmitVectorExtract(context, op.Rn, index, op.Size, signed);
+
+                Operand e = !saturating
+                    ? EmitShlImm(context, ne, GetImmShl(op), op.Size)
+                    : EmitShlImmSatQ(context, ne, GetImmShl(op), op.Size, signed, signedDst);
+
+                res = EmitVectorInsert(context, res, e, index, op.Size);
+            }
+
+            context.Copy(GetVec(op.Rd), res);
+        }
+
+        private static Operand EmitShlImm(ArmEmitterContext context, Operand op, int shiftLsB, int size)
+        {
+            int eSize = 8 << size;
+
+            Debug.Assert(op.Type == OperandType.I64);
+            Debug.Assert(eSize == 8 || eSize == 16 || eSize == 32 || eSize == 64);
+
+            Operand res = context.AllocateLocal(OperandType.I64);
+
+            if (shiftLsB >= eSize)
+            {
+                Operand shl = context.ShiftLeft(op, Const(shiftLsB));
+                context.Copy(res, shl);
+            }
+            else
+            {
+                Operand zeroL = Const(0L);
+                context.Copy(res, zeroL);
+            }
+
+            return res;
+        }
+
+        private static Operand EmitShlImmSatQ(ArmEmitterContext context, Operand op, int shiftLsB, int size, bool signedSrc, bool signedDst)
+        {
+            int eSize = 8 << size;
+
+            Debug.Assert(op.Type == OperandType.I64);
+            Debug.Assert(eSize == 8 || eSize == 16 || eSize == 32 || eSize == 64);
+
+            Operand lblEnd = Label();
+
+            Operand res = context.Copy(context.AllocateLocal(OperandType.I64), op);
+
+            if (shiftLsB >= eSize)
+            {
+                context.Copy(res, signedSrc
+                    ? EmitSignedSignSatQ(context, op, size)
+                    : EmitUnsignedSignSatQ(context, op, size));
+            }
+            else
+            {
+                Operand shl = context.ShiftLeft(op, Const(shiftLsB));
+                if (eSize == 64)
+                {
+                    Operand sarOrShr = signedSrc
+                        ? context.ShiftRightSI(shl, Const(shiftLsB))
+                        : context.ShiftRightUI(shl, Const(shiftLsB));
+                    context.Copy(res, shl);
+                    context.BranchIf(lblEnd, sarOrShr, op, Comparison.Equal);
+                    context.Copy(res, signedSrc
+                        ? EmitSignedSignSatQ(context, op, size)
+                        : EmitUnsignedSignSatQ(context, op, size));
+                }
+                else
+                {
+                    context.Copy(res, signedSrc
+                        ? EmitSignedSrcSatQ(context, shl, size, signedDst)
+                        : EmitUnsignedSrcSatQ(context, shl, size, signedDst));
+                }
+            }
+
+            context.MarkLabel(lblEnd);
+
+            return res;
+        }
+
         private static void EmitShlRegOp(ArmEmitterContext context, ShlRegFlags flags = ShlRegFlags.None)
         {
             bool scalar = flags.HasFlag(ShlRegFlags.Scalar);

src/ARMeilleure/Instructions/InstEmitSimdShift32.cs

@@ -106,6 +106,38 @@ namespace ARMeilleure.Instructions
             context.Copy(GetVecA32(op.Qd), res);
         }
 
+        public static void Vshll2(ArmEmitterContext context)
+        {
+            OpCode32Simd op = (OpCode32Simd)context.CurrOp;
+
+            Operand res = context.VectorZero();
+
+            int elems = op.GetBytesCount() >> op.Size;
+
+            for (int index = 0; index < elems; index++)
+            {
+                Operand me = EmitVectorExtract32(context, op.Qm, op.Im + index, op.Size, !op.U);
+
+                if (op.Size == 2)
+                {
+                    if (op.U)
+                    {
+                        me = context.ZeroExtend32(OperandType.I64, me);
+                    }
+                    else
+                    {
+                        me = context.SignExtend32(OperandType.I64, me);
+                    }
+                }
+
+                me = context.ShiftLeft(me, Const(8 << op.Size));
+
+                res = EmitVectorInsert(context, res, me, index, op.Size + 1);
+            }
+
+            context.Copy(GetVecA32(op.Qd), res);
+        }
+
         public static void Vshr(ArmEmitterContext context)
         {
             OpCode32SimdShImm op = (OpCode32SimdShImm)context.CurrOp;
@@ -130,6 +162,36 @@ namespace ARMeilleure.Instructions
             EmitVectorUnaryNarrowOp32(context, (op1) => context.ShiftRightUI(op1, Const(shift)));
         }
 
+        public static void Vsli_I(ArmEmitterContext context)
+        {
+            OpCode32SimdShImm op = (OpCode32SimdShImm)context.CurrOp;
+            int shift = op.Shift;
+            int eSize = 8 << op.Size;
+
+            ulong mask = shift != 0 ? ulong.MaxValue >> (64 - shift) : 0UL;
+
+            Operand res = GetVec(op.Qd);
+
+            int elems = op.GetBytesCount() >> op.Size;
+
+            for (int index = 0; index < elems; index++)
+            {
+                Operand me = EmitVectorExtractZx(context, op.Qm, op.Im + index, op.Size);
+
+                Operand neShifted = context.ShiftLeft(me, Const(shift));
+
+                Operand de = EmitVectorExtractZx(context, op.Qd, op.Id + index, op.Size);
+
+                Operand deMasked = context.BitwiseAnd(de, Const(mask));
+
+                Operand e = context.BitwiseOr(neShifted, deMasked);
+
+                res = EmitVectorInsert(context, res, e, op.Id + index, op.Size);
+            }
+
+            context.Copy(GetVec(op.Qd), res);
+        }
+
         public static void Vsra(ArmEmitterContext context)
         {
             OpCode32SimdShImm op = (OpCode32SimdShImm)context.CurrOp;

src/ARMeilleure/Instructions/InstName.cs

@@ -384,7 +384,9 @@ namespace ARMeilleure.Instructions
         Sqrshrn_V,
         Sqrshrun_S,
         Sqrshrun_V,
+        Sqshl_Si,
         Sqshl_V,
+        Sqshl_Vi,
         Sqshrn_S,
         Sqshrn_V,
         Sqshrun_S,
@@ -525,6 +527,7 @@ namespace ARMeilleure.Instructions
         Pld,
         Pop,
         Push,
+        Qadd16,
         Rev,
         Revsh,
         Rsb,
@@ -569,6 +572,10 @@ namespace ARMeilleure.Instructions
         Umaal,
         Umlal,
         Umull,
+        Uqadd16,
+        Uqadd8,
+        Uqsub16,
+        Uqsub8,
         Usat,
         Usat16,
         Usub8,
@@ -635,6 +642,7 @@ namespace ARMeilleure.Instructions
         Vorn,
         Vorr,
         Vpadd,
+        Vpadal,
         Vpaddl,
         Vpmax,
         Vpmin,
@@ -642,6 +650,7 @@ namespace ARMeilleure.Instructions
         Vqdmulh,
         Vqmovn,
         Vqmovun,
+        Vqrdmulh,
         Vqrshrn,
         Vqrshrun,
         Vqshrn,
@@ -654,6 +663,7 @@ namespace ARMeilleure.Instructions
         Vrintm,
         Vrintn,
         Vrintp,
+        Vrintr,
         Vrintx,
         Vrshr,
         Vrshrn,
@@ -662,6 +672,7 @@ namespace ARMeilleure.Instructions
         Vshll,
         Vshr,
         Vshrn,
+        Vsli,
         Vst1,
         Vst2,
         Vst3,
@@ -678,6 +689,7 @@ namespace ARMeilleure.Instructions
         Vsub,
         Vsubl,
         Vsubw,
+        Vswp,
         Vtbl,
         Vtrn,
         Vtst,

src/ARMeilleure/Instructions/NativeInterface.cs

@@ -91,54 +91,54 @@ namespace ARMeilleure.Instructions
         #region "Read"
         public static byte ReadByte(ulong address)
         {
-            return GetMemoryManager().ReadTracked<byte>(address);
+            return GetMemoryManager().ReadGuest<byte>(address);
         }
 
         public static ushort ReadUInt16(ulong address)
         {
-            return GetMemoryManager().ReadTracked<ushort>(address);
+            return GetMemoryManager().ReadGuest<ushort>(address);
         }
 
         public static uint ReadUInt32(ulong address)
         {
-            return GetMemoryManager().ReadTracked<uint>(address);
+            return GetMemoryManager().ReadGuest<uint>(address);
         }
 
         public static ulong ReadUInt64(ulong address)
         {
-            return GetMemoryManager().ReadTracked<ulong>(address);
+            return GetMemoryManager().ReadGuest<ulong>(address);
         }
 
         public static V128 ReadVector128(ulong address)
         {
-            return GetMemoryManager().ReadTracked<V128>(address);
+            return GetMemoryManager().ReadGuest<V128>(address);
         }
         #endregion
 
         #region "Write"
         public static void WriteByte(ulong address, byte value)
         {
-            GetMemoryManager().Write(address, value);
+            GetMemoryManager().WriteGuest(address, value);
         }
 
         public static void WriteUInt16(ulong address, ushort value)
         {
-            GetMemoryManager().Write(address, value);
+            GetMemoryManager().WriteGuest(address, value);
         }
 
         public static void WriteUInt32(ulong address, uint value)
         {
-            GetMemoryManager().Write(address, value);
+            GetMemoryManager().WriteGuest(address, value);
         }
 
         public static void WriteUInt64(ulong address, ulong value)
         {
-            GetMemoryManager().Write(address, value);
+            GetMemoryManager().WriteGuest(address, value);
         }
 
         public static void WriteVector128(ulong address, V128 value)
         {
-            GetMemoryManager().Write(address, value);
+            GetMemoryManager().WriteGuest(address, value);
         }
         #endregion
 

src/ARMeilleure/Memory/IJitMemoryAllocator.cs

@@ -4,7 +4,5 @@ namespace ARMeilleure.Memory
     {
         IJitMemoryBlock Allocate(ulong size);
         IJitMemoryBlock Reserve(ulong size);
-
-        ulong GetPageSize();
     }
 }

src/ARMeilleure/Memory/IMemoryManager.cs

@@ -28,6 +28,17 @@ namespace ARMeilleure.Memory
         /// <returns>The data</returns>
         T ReadTracked<T>(ulong va) where T : unmanaged;
 
+        /// <summary>
+        /// Reads data from CPU mapped memory, from guest code. (with read tracking)
+        /// </summary>
+        /// <typeparam name="T">Type of the data being read</typeparam>
+        /// <param name="va">Virtual address of the data in memory</param>
+        /// <returns>The data</returns>
+        T ReadGuest<T>(ulong va) where T : unmanaged
+        {
+            return ReadTracked<T>(va);
+        }
+
         /// <summary>
         /// Writes data to CPU mapped memory.
         /// </summary>
@@ -36,6 +47,17 @@ namespace ARMeilleure.Memory
         /// <param name="value">Data to be written</param>
         void Write<T>(ulong va, T value) where T : unmanaged;
 
+        /// <summary>
+        /// Writes data to CPU mapped memory, from guest code.
+        /// </summary>
+        /// <typeparam name="T">Type of the data being written</typeparam>
+        /// <param name="va">Virtual address to write the data into</param>
+        /// <param name="value">Data to be written</param>
+        void WriteGuest<T>(ulong va, T value) where T : unmanaged
+        {
+            Write(va, value);
+        }
+
         /// <summary>
         /// Gets a read-only span of data from CPU mapped memory.
         /// </summary>

src/ARMeilleure/Memory/MemoryManagerType.cs

@@ -35,18 +35,29 @@ namespace ARMeilleure.Memory
         /// Allows invalid access from JIT code to the rest of the program, but is faster.
         /// </summary>
         HostMappedUnsafe,
+
+        /// <summary>
+        /// High level implementation using a software flat page table for address translation
+        /// without masking the address and no support for handling invalid or non-contiguous memory access.
+        /// </summary>
+        HostTrackedUnsafe,
     }
 
-    static class MemoryManagerTypeExtensions
+    public static class MemoryManagerTypeExtensions
     {
         public static bool IsHostMapped(this MemoryManagerType type)
         {
             return type == MemoryManagerType.HostMapped || type == MemoryManagerType.HostMappedUnsafe;
         }
 
+        public static bool IsHostTracked(this MemoryManagerType type)
+        {
+            return type == MemoryManagerType.HostTracked || type == MemoryManagerType.HostTrackedUnsafe;
+        }
+
         public static bool IsHostMappedOrTracked(this MemoryManagerType type)
         {
-            return type == MemoryManagerType.HostTracked || type == MemoryManagerType.HostMapped || type == MemoryManagerType.HostMappedUnsafe;
+            return type.IsHostMapped() || type.IsHostTracked();
         }
     }
 }

src/ARMeilleure/Signal/NativeSignalHandlerGenerator.cs

@@ -1,63 +1,14 @@
-using ARMeilleure.IntermediateRepresentation;
-using ARMeilleure.Memory;
+using ARMeilleure.IntermediateRepresentation;
 using ARMeilleure.Translation;
-using ARMeilleure.Translation.Cache;
 using System;
-using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using static ARMeilleure.IntermediateRepresentation.Operand.Factory;
 
 namespace ARMeilleure.Signal
 {
-    [StructLayout(LayoutKind.Sequential, Pack = 1)]
-    struct SignalHandlerRange
+    public static class NativeSignalHandlerGenerator
     {
-        public int IsActive;
-        public nuint RangeAddress;
-        public nuint RangeEndAddress;
-        public IntPtr ActionPointer;
-    }
-
-    [StructLayout(LayoutKind.Sequential, Pack = 1)]
-    struct SignalHandlerConfig
-    {
-        /// <summary>
-        /// The byte offset of the faulting address in the SigInfo or ExceptionRecord struct.
-        /// </summary>
-        public int StructAddressOffset;
-
-        /// <summary>
-        /// The byte offset of the write flag in the SigInfo or ExceptionRecord struct.
-        /// </summary>
-        public int StructWriteOffset;
-
-        /// <summary>
-        /// The sigaction handler that was registered before this one. (unix only)
-        /// </summary>
-        public nuint UnixOldSigaction;
-
-        /// <summary>
-        /// The type of the previous sigaction. True for the 3 argument variant. (unix only)
-        /// </summary>
-        public int UnixOldSigaction3Arg;
-
-        public SignalHandlerRange Range0;
-        public SignalHandlerRange Range1;
-        public SignalHandlerRange Range2;
-        public SignalHandlerRange Range3;
-        public SignalHandlerRange Range4;
-        public SignalHandlerRange Range5;
-        public SignalHandlerRange Range6;
-        public SignalHandlerRange Range7;
-    }
-
-    public static class NativeSignalHandler
-    {
-        private delegate void UnixExceptionHandler(int sig, IntPtr info, IntPtr ucontext);
-        [UnmanagedFunctionPointer(CallingConvention.Winapi)]
-        private delegate int VectoredExceptionHandler(IntPtr exceptionInfo);
-
-        private const int MaxTrackedRanges = 8;
+        public const int MaxTrackedRanges = 8;
 
         private const int StructAddressOffset = 0;
         private const int StructWriteOffset = 4;
@@ -70,124 +21,7 @@ namespace ARMeilleure.Signal
 
         private const uint EXCEPTION_ACCESS_VIOLATION = 0xc0000005;
 
-        private static ulong _pageSize;
-        private static ulong _pageMask;
-
-        private static readonly IntPtr _handlerConfig;
-        private static IntPtr _signalHandlerPtr;
-        private static IntPtr _signalHandlerHandle;
-
-        private static readonly object _lock = new();
-        private static bool _initialized;
-
-        static NativeSignalHandler()
-        {
-            _handlerConfig = Marshal.AllocHGlobal(Unsafe.SizeOf<SignalHandlerConfig>());
-            ref SignalHandlerConfig config = ref GetConfigRef();
-
-            config = new SignalHandlerConfig();
-        }
-
-        public static void Initialize(IJitMemoryAllocator allocator)
-        {
-            JitCache.Initialize(allocator);
-        }
-
-        public static void InitializeSignalHandler(ulong pageSize, Func<IntPtr, IntPtr, IntPtr> customSignalHandlerFactory = null)
-        {
-            if (_initialized)
-            {
-                return;
-            }
-
-            lock (_lock)
-            {
-                if (_initialized)
-                {
-                    return;
-                }
-
-                _pageSize = pageSize;
-                _pageMask = pageSize - 1;
-
-                ref SignalHandlerConfig config = ref GetConfigRef();
-
-                if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS() || OperatingSystem.IsIOS())
-                {
-                    _signalHandlerPtr = Marshal.GetFunctionPointerForDelegate(GenerateUnixSignalHandler(_handlerConfig));
-
-                    if (customSignalHandlerFactory != null)
-                    {
-                        _signalHandlerPtr = customSignalHandlerFactory(UnixSignalHandlerRegistration.GetSegfaultExceptionHandler().sa_handler, _signalHandlerPtr);
-                    }
-
-                    var old = UnixSignalHandlerRegistration.RegisterExceptionHandler(_signalHandlerPtr);
-
-                    config.UnixOldSigaction = (nuint)(ulong)old.sa_handler;
-                    config.UnixOldSigaction3Arg = old.sa_flags & 4;
-                }
-                else
-                {
-                    config.StructAddressOffset = 40; // ExceptionInformation1
-                    config.StructWriteOffset = 32; // ExceptionInformation0
-
-                    _signalHandlerPtr = Marshal.GetFunctionPointerForDelegate(GenerateWindowsSignalHandler(_handlerConfig));
-
-                    if (customSignalHandlerFactory != null)
-                    {
-                        _signalHandlerPtr = customSignalHandlerFactory(IntPtr.Zero, _signalHandlerPtr);
-                    }
-
-                    _signalHandlerHandle = WindowsSignalHandlerRegistration.RegisterExceptionHandler(_signalHandlerPtr);
-                }
-
-                _initialized = true;
-            }
-        }
-
-        private static unsafe ref SignalHandlerConfig GetConfigRef()
-        {
-            return ref Unsafe.AsRef<SignalHandlerConfig>((void*)_handlerConfig);
-        }
-
-        public static unsafe bool AddTrackedRegion(nuint address, nuint endAddress, IntPtr action)
-        {
-            var ranges = &((SignalHandlerConfig*)_handlerConfig)->Range0;
-
-            for (int i = 0; i < MaxTrackedRanges; i++)
-            {
-                if (ranges[i].IsActive == 0)
-                {
-                    ranges[i].RangeAddress = address;
-                    ranges[i].RangeEndAddress = endAddress;
-                    ranges[i].ActionPointer = action;
-                    ranges[i].IsActive = 1;
-
-                    return true;
-                }
-            }
-
-            return false;
-        }
-
-        public static unsafe bool RemoveTrackedRegion(nuint address)
-        {
-            var ranges = &((SignalHandlerConfig*)_handlerConfig)->Range0;
-
-            for (int i = 0; i < MaxTrackedRanges; i++)
-            {
-                if (ranges[i].IsActive == 1 && ranges[i].RangeAddress == address)
-                {
-                    ranges[i].IsActive = 0;
-
-                    return true;
-                }
-            }
-
-            return false;
-        }
-
-        private static Operand EmitGenericRegionCheck(EmitterContext context, IntPtr signalStructPtr, Operand faultAddress, Operand isWrite)
+        private static Operand EmitGenericRegionCheck(EmitterContext context, IntPtr signalStructPtr, Operand faultAddress, Operand isWrite, int rangeStructSize)
         {
             Operand inRegionLocal = context.AllocateLocal(OperandType.I32);
             context.Copy(inRegionLocal, Const(0));
@@ -196,7 +30,7 @@ namespace ARMeilleure.Signal
 
             for (int i = 0; i < MaxTrackedRanges; i++)
             {
-                ulong rangeBaseOffset = (ulong)(RangeOffset + i * Unsafe.SizeOf<SignalHandlerRange>());
+                ulong rangeBaseOffset = (ulong)(RangeOffset + i * rangeStructSize);
 
                 Operand nextLabel = Label();
 
@@ -210,13 +44,12 @@ namespace ARMeilleure.Signal
                 // Is the fault address within this tracked region?
                 Operand inRange = context.BitwiseAnd(
                     context.ICompare(faultAddress, rangeAddress, Comparison.GreaterOrEqualUI),
-                    context.ICompare(faultAddress, rangeEndAddress, Comparison.LessUI)
-                    );
+                    context.ICompare(faultAddress, rangeEndAddress, Comparison.LessUI));
 
                 // Only call tracking if in range.
                 context.BranchIfFalse(nextLabel, inRange, BasicBlockFrequency.Cold);
 
-                Operand offset = context.BitwiseAnd(context.Subtract(faultAddress, rangeAddress), Const(~_pageMask));
+                Operand offset = context.Subtract(faultAddress, rangeAddress);
 
                 // Call the tracking action, with the pointer's relative offset to the base address.
                 Operand trackingActionPtr = context.Load(OperandType.I64, Const((ulong)signalStructPtr + rangeBaseOffset + 20));
@@ -227,8 +60,10 @@ namespace ARMeilleure.Signal
 
                 // Tracking action should be non-null to call it, otherwise assume false return.
                 context.BranchIfFalse(skipActionLabel, trackingActionPtr);
-                Operand result = context.Call(trackingActionPtr, OperandType.I32, offset, Const(_pageSize), isWrite);
-                context.Copy(inRegionLocal, result);
+                Operand result = context.Call(trackingActionPtr, OperandType.I64, offset, Const(1UL), isWrite);
+                context.Copy(inRegionLocal, context.ICompareNotEqual(result, Const(0UL)));
+
+                GenerateFaultAddressPatchCode(context, faultAddress, result);
 
                 context.MarkLabel(skipActionLabel);
 
@@ -269,8 +104,7 @@ namespace ARMeilleure.Signal
                     Operand esr = context.Load(OperandType.I64, context.Add(ctxPtr, Const(EsrOffset)));
                     return context.BitwiseAnd(esr, Const(0x40ul));
                 }
-
-                if (RuntimeInformation.ProcessArchitecture == Architecture.X64)
+                else if (RuntimeInformation.ProcessArchitecture == Architecture.X64)
                 {
                     const ulong ErrOffset = 4; // __es.__err
                     Operand err = context.Load(OperandType.I64, context.Add(ctxPtr, Const(ErrOffset)));
@@ -310,8 +144,7 @@ namespace ARMeilleure.Signal
                     Operand esr = context.Load(OperandType.I64, context.Add(auxPtr, Const(8ul)));
                     return context.BitwiseAnd(esr, Const(0x40ul));
                 }
-
-                if (RuntimeInformation.ProcessArchitecture == Architecture.X64)
+                else if (RuntimeInformation.ProcessArchitecture == Architecture.X64)
                 {
                     const int ErrOffset = 192; // uc_mcontext.gregs[REG_ERR]
                     Operand err = context.Load(OperandType.I64, context.Add(ucontextPtr, Const(ErrOffset)));
@@ -322,7 +155,7 @@ namespace ARMeilleure.Signal
             throw new PlatformNotSupportedException();
         }
 
-        private static UnixExceptionHandler GenerateUnixSignalHandler(IntPtr signalStructPtr)
+        public static byte[] GenerateUnixSignalHandler(IntPtr signalStructPtr, int rangeStructSize)
         {
             EmitterContext context = new();
 
@@ -335,7 +168,7 @@ namespace ARMeilleure.Signal
 
             Operand isWrite = context.ICompareNotEqual(writeFlag, Const(0L)); // Normalize to 0/1.
 
-            Operand isInRegion = EmitGenericRegionCheck(context, signalStructPtr, faultAddress, isWrite);
+            Operand isInRegion = EmitGenericRegionCheck(context, signalStructPtr, faultAddress, isWrite, rangeStructSize);
 
             Operand endLabel = Label();
 
@@ -367,10 +200,10 @@ namespace ARMeilleure.Signal
 
             OperandType[] argTypes = new OperandType[] { OperandType.I32, OperandType.I64, OperandType.I64 };
 
-            return Compiler.Compile(cfg, argTypes, OperandType.None, CompilerOptions.HighCq, RuntimeInformation.ProcessArchitecture).Map<UnixExceptionHandler>();
+            return Compiler.Compile(cfg, argTypes, OperandType.None, CompilerOptions.HighCq, RuntimeInformation.ProcessArchitecture).Code;
         }
 
-        private static VectoredExceptionHandler GenerateWindowsSignalHandler(IntPtr signalStructPtr)
+        public static byte[] GenerateWindowsSignalHandler(IntPtr signalStructPtr, int rangeStructSize)
         {
             EmitterContext context = new();
 
@@ -399,7 +232,7 @@ namespace ARMeilleure.Signal
 
             Operand isWrite = context.ICompareNotEqual(writeFlag, Const(0L)); // Normalize to 0/1.
 
-            Operand isInRegion = EmitGenericRegionCheck(context, signalStructPtr, faultAddress, isWrite);
+            Operand isInRegion = EmitGenericRegionCheck(context, signalStructPtr, faultAddress, isWrite, rangeStructSize);
 
             Operand endLabel = Label();
 
@@ -421,7 +254,88 @@ namespace ARMeilleure.Signal
 
             OperandType[] argTypes = new OperandType[] { OperandType.I64 };
 
-            return Compiler.Compile(cfg, argTypes, OperandType.I32, CompilerOptions.HighCq, RuntimeInformation.ProcessArchitecture).Map<VectoredExceptionHandler>();
+            return Compiler.Compile(cfg, argTypes, OperandType.I32, CompilerOptions.HighCq, RuntimeInformation.ProcessArchitecture).Code;
+        }
+
+        private static void GenerateFaultAddressPatchCode(EmitterContext context, Operand faultAddress, Operand newAddress)
+        {
+            if (RuntimeInformation.ProcessArchitecture == Architecture.Arm64)
+            {
+                if (SupportsFaultAddressPatchingForHostOs())
+                {
+                    Operand lblSkip = Label();
+
+                    context.BranchIf(lblSkip, faultAddress, newAddress, Comparison.Equal);
+
+                    Operand ucontextPtr = context.LoadArgument(OperandType.I64, 2);
+                    Operand pcCtxAddress = default;
+                    ulong baseRegsOffset = 0;
+
+                    if (OperatingSystem.IsLinux())
+                    {
+                        pcCtxAddress = context.Add(ucontextPtr, Const(440UL));
+                        baseRegsOffset = 184UL;
+                    }
+                    else if (OperatingSystem.IsMacOS() || OperatingSystem.IsIOS())
+                    {
+                        ucontextPtr = context.Load(OperandType.I64, context.Add(ucontextPtr, Const(48UL)));
+
+                        pcCtxAddress = context.Add(ucontextPtr, Const(272UL));
+                        baseRegsOffset = 16UL;
+                    }
+
+                    Operand pc = context.Load(OperandType.I64, pcCtxAddress);
+
+                    Operand reg = GetAddressRegisterFromArm64Instruction(context, pc);
+                    Operand reg64 = context.ZeroExtend32(OperandType.I64, reg);
+                    Operand regCtxAddress = context.Add(ucontextPtr, context.Add(context.ShiftLeft(reg64, Const(3)), Const(baseRegsOffset)));
+                    Operand regAddress = context.Load(OperandType.I64, regCtxAddress);
+
+                    Operand addressDelta = context.Subtract(regAddress, faultAddress);
+
+                    context.Store(regCtxAddress, context.Add(newAddress, addressDelta));
+
+                    context.MarkLabel(lblSkip);
+                }
+            }
+        }
+
+        private static Operand GetAddressRegisterFromArm64Instruction(EmitterContext context, Operand pc)
+        {
+            Operand inst = context.Load(OperandType.I32, pc);
+            Operand reg = context.AllocateLocal(OperandType.I32);
+
+            Operand isSysInst = context.ICompareEqual(context.BitwiseAnd(inst, Const(0xFFF80000)), Const(0xD5080000));
+
+            Operand lblSys = Label();
+            Operand lblEnd = Label();
+
+            context.BranchIfTrue(lblSys, isSysInst, BasicBlockFrequency.Cold);
+
+            context.Copy(reg, context.BitwiseAnd(context.ShiftRightUI(inst, Const(5)), Const(0x1F)));
+            context.Branch(lblEnd);
+
+            context.MarkLabel(lblSys);
+            context.Copy(reg, context.BitwiseAnd(inst, Const(0x1F)));
+
+            context.MarkLabel(lblEnd);
+
+            return reg;
+        }
+
+        public static bool SupportsFaultAddressPatchingForHost()
+        {
+            return SupportsFaultAddressPatchingForHostArch() && SupportsFaultAddressPatchingForHostOs();
+        }
+
+        private static bool SupportsFaultAddressPatchingForHostArch()
+        {
+            return RuntimeInformation.ProcessArchitecture == Architecture.Arm64;
+        }
+
+        private static bool SupportsFaultAddressPatchingForHostOs()
+        {
+            return OperatingSystem.IsLinux() || OperatingSystem.IsMacOS() || OperatingSystem.IsIOS();
         }
     }
 }

src/ARMeilleure/Signal/WindowsPartialUnmapHandler.cs

@@ -2,7 +2,7 @@ using ARMeilleure.IntermediateRepresentation;
 using ARMeilleure.Translation;
 using Ryujinx.Common.Memory.PartialUnmaps;
 using System;
-
+using System.Runtime.InteropServices;
 using static ARMeilleure.IntermediateRepresentation.Operand.Factory;
 
 namespace ARMeilleure.Signal
@@ -10,8 +10,28 @@ namespace ARMeilleure.Signal
     /// <summary>
     /// Methods to handle signals caused by partial unmaps. See the structs for C# implementations of the methods.
     /// </summary>
-    internal static class WindowsPartialUnmapHandler
+    internal static partial class WindowsPartialUnmapHandler
     {
+        [LibraryImport("kernel32.dll", SetLastError = true, EntryPoint = "LoadLibraryA")]
+        private static partial IntPtr LoadLibrary([MarshalAs(UnmanagedType.LPStr)] string lpFileName);
+
+        [LibraryImport("kernel32.dll", SetLastError = true)]
+        private static partial IntPtr GetProcAddress(IntPtr hModule, [MarshalAs(UnmanagedType.LPStr)] string procName);
+
+        private static IntPtr _getCurrentThreadIdPtr;
+
+        public static IntPtr GetCurrentThreadIdFunc()
+        {
+            if (_getCurrentThreadIdPtr == IntPtr.Zero)
+            {
+                IntPtr handle = LoadLibrary("kernel32.dll");
+
+                _getCurrentThreadIdPtr = GetProcAddress(handle, "GetCurrentThreadId");
+            }
+
+            return _getCurrentThreadIdPtr;
+        }
+
         public static Operand EmitRetryFromAccessViolation(EmitterContext context)
         {
             IntPtr partialRemapStatePtr = PartialUnmapState.GlobalState;
@@ -20,7 +40,7 @@ namespace ARMeilleure.Signal
             // Get the lock first.
             EmitNativeReaderLockAcquire(context, IntPtr.Add(partialRemapStatePtr, PartialUnmapState.PartialUnmapLockOffset));
 
-            IntPtr getCurrentThreadId = WindowsSignalHandlerRegistration.GetCurrentThreadIdFunc();
+            IntPtr getCurrentThreadId = GetCurrentThreadIdFunc();
             Operand threadId = context.Call(Const((ulong)getCurrentThreadId), OperandType.I32);
             Operand threadIndex = EmitThreadLocalMapIntGetOrReserve(context, localCountsPtr, threadId, Const(0));
 
@@ -137,17 +157,6 @@ namespace ARMeilleure.Signal
             return context.Add(structsPtr, context.SignExtend32(OperandType.I64, offset));
         }
 
-#pragma warning disable IDE0051 // Remove unused private member
-        private static void EmitThreadLocalMapIntRelease(EmitterContext context, IntPtr threadLocalMapPtr, Operand threadId, Operand index)
-        {
-            Operand offset = context.Multiply(index, Const(sizeof(int)));
-            Operand idsPtr = Const((ulong)IntPtr.Add(threadLocalMapPtr, ThreadLocalMap<int>.ThreadIdsOffset));
-            Operand idPtr = context.Add(idsPtr, context.SignExtend32(OperandType.I64, offset));
-
-            context.CompareAndSwap(idPtr, threadId, Const(0));
-        }
-#pragma warning restore IDE0051
-
         private static void EmitAtomicAddI32(EmitterContext context, Operand ptr, Operand additive)
         {
             Operand loop = Label();

src/ARMeilleure/Signal/WindowsSignalHandlerRegistration.cs

@@ -1,44 +0,0 @@
-using System;
-using System.Runtime.InteropServices;
-
-namespace ARMeilleure.Signal
-{
-    unsafe partial class WindowsSignalHandlerRegistration
-    {
-        [LibraryImport("kernel32.dll")]
-        private static partial IntPtr AddVectoredExceptionHandler(uint first, IntPtr handler);
-
-        [LibraryImport("kernel32.dll")]
-        private static partial ulong RemoveVectoredExceptionHandler(IntPtr handle);
-
-        [LibraryImport("kernel32.dll", SetLastError = true, EntryPoint = "LoadLibraryA")]
-        private static partial IntPtr LoadLibrary([MarshalAs(UnmanagedType.LPStr)] string lpFileName);
-
-        [LibraryImport("kernel32.dll", SetLastError = true)]
-        private static partial IntPtr GetProcAddress(IntPtr hModule, [MarshalAs(UnmanagedType.LPStr)] string procName);
-
-        private static IntPtr _getCurrentThreadIdPtr;
-
-        public static IntPtr RegisterExceptionHandler(IntPtr action)
-        {
-            return AddVectoredExceptionHandler(1, action);
-        }
-
-        public static bool RemoveExceptionHandler(IntPtr handle)
-        {
-            return RemoveVectoredExceptionHandler(handle) != 0;
-        }
-
-        public static IntPtr GetCurrentThreadIdFunc()
-        {
-            if (_getCurrentThreadIdPtr == IntPtr.Zero)
-            {
-                IntPtr handle = LoadLibrary("kernel32.dll");
-
-                _getCurrentThreadIdPtr = GetProcAddress(handle, "GetCurrentThreadId");
-            }
-
-            return _getCurrentThreadIdPtr;
-        }
-    }
-}

src/ARMeilleure/Translation/Cache/JitCache.cs

@@ -117,8 +117,15 @@ namespace ARMeilleure.Translation.Cache
                 if (OperatingSystem.IsIOS())
                 {
                     Marshal.Copy(code, 0, funcPtr, code.Length);
-                    ReprotectAsExecutable(targetRegion, funcOffset, code.Length);
-                    JitSupportDarwinAot.Invalidate(funcPtr, (ulong)code.Length);
+                    if (deferProtect)
+                    {
+                        _deferredRxProtect.Enqueue((funcOffset, code.Length));
+                    }
+                    else
+                    {
+                        ReprotectAsExecutable(targetRegion, funcOffset, code.Length);
+                        JitSupportDarwinAot.Invalidate(funcPtr, (ulong)code.Length);
+                    }
                 }
                 else if (OperatingSystem.IsMacOS()&& RuntimeInformation.ProcessArchitecture == Architecture.Arm64)
                 {

src/ARMeilleure/Translation/ControlFlowGraph.cs

@@ -11,7 +11,7 @@ namespace ARMeilleure.Translation
         private int[] _postOrderMap;
 
         public int LocalsCount { get; private set; }
-        public BasicBlock Entry { get; }
+        public BasicBlock Entry { get; private set; }
         public IntrusiveList<BasicBlock> Blocks { get; }
         public BasicBlock[] PostOrderBlocks => _postOrderBlocks;
         public int[] PostOrderMap => _postOrderMap;
@@ -34,6 +34,15 @@ namespace ARMeilleure.Translation
             return result;
         }
 
+        public void UpdateEntry(BasicBlock newEntry)
+        {
+            newEntry.AddSuccessor(Entry);
+
+            Entry = newEntry;
+            Blocks.AddFirst(newEntry);
+            Update();
+        }
+
         public void Update()
         {
             RemoveUnreachableBlocks(Blocks);

src/ARMeilleure/Translation/PTC/Ptc.cs

@@ -30,7 +30,7 @@ namespace ARMeilleure.Translation.PTC
         private const string OuterHeaderMagicString = "PTCohd\0\0";
         private const string InnerHeaderMagicString = "PTCihd\0\0";
 
-        private const uint InternalVersion = 5518; //! To be incremented manually for each change to the ARMeilleure project.
+        private const uint InternalVersion = 6950; //! To be incremented manually for each change to the ARMeilleure project.
 
         private const string ActualDir = "0";
         private const string BackupDir = "1";
@@ -858,8 +858,14 @@ namespace ARMeilleure.Translation.PTC
 
             Stopwatch sw = Stopwatch.StartNew();
 
-            threads.ForEach((thread) => thread.Start());
-            threads.ForEach((thread) => thread.Join());
+            foreach (var thread in threads)
+            {
+                thread.Start();
+            }
+            foreach (var thread in threads)
+            {
+                thread.Join();
+            }
 
             threads.Clear();
 

src/ARMeilleure/Translation/RegisterUsage.cs

@@ -89,6 +89,17 @@ namespace ARMeilleure.Translation
 
         public static void RunPass(ControlFlowGraph cfg, ExecutionMode mode)
         {
+            if (cfg.Entry.Predecessors.Count != 0)
+            {
+                // We expect the entry block to have no predecessors.
+                // This is required because we have a implicit context load at the start of the function,
+                // but if there is a jump to the start of the function, the context load would trash the modified values.
+                // Here we insert a new entry block that will jump to the existing entry block.
+                BasicBlock newEntry = new BasicBlock(cfg.Blocks.Count);
+
+                cfg.UpdateEntry(newEntry);
+            }
+
             // Compute local register inputs and outputs used inside blocks.
             RegisterMask[] localInputs = new RegisterMask[cfg.Blocks.Count];
             RegisterMask[] localOutputs = new RegisterMask[cfg.Blocks.Count];
@@ -201,7 +212,7 @@ namespace ARMeilleure.Translation
 
                 // The only block without any predecessor should be the entry block.
                 // It always needs a context load as it is the first block to run.
-                if (block.Predecessors.Count == 0 || hasContextLoad)
+                if (block == cfg.Entry || hasContextLoad)
                 {
                     long vecMask = globalInputs[block.Index].VecMask;
                     long intMask = globalInputs[block.Index].IntMask;

src/ARMeilleure/Translation/Translator.cs

@@ -57,9 +57,6 @@ namespace ARMeilleure.Translation
         private Thread[] _backgroundTranslationThreads;
         private volatile int _threadCount;
 
-        // FIXME: Remove this once the init logic of the emulator will be redone.
-        public static readonly ManualResetEvent IsReadyForTranslation = new(false);
-
         public Translator(IJitMemoryAllocator allocator, IMemoryManager memory, bool for64Bits)
         {
             _allocator = allocator;
@@ -79,11 +76,6 @@ namespace ARMeilleure.Translation
             Stubs = new TranslatorStubs(FunctionTable);
 
             FunctionTable.Fill = (ulong)Stubs.SlowDispatchStub;
-
-            if (memory.Type.IsHostMappedOrTracked())
-            {
-                NativeSignalHandler.InitializeSignalHandler(allocator.GetPageSize());
-            }
         }
 
         public IPtcLoadState LoadDiskCache(string titleIdText, string displayVersion, bool enabled)
@@ -105,8 +97,6 @@ namespace ARMeilleure.Translation
         {
             if (Interlocked.Increment(ref _threadCount) == 1)
             {
-                IsReadyForTranslation.WaitOne();
-
                 if (_ptc.State == PtcState.Enabled)
                 {
                     Debug.Assert(Functions.Count == 0);

src/ARMeilleure/Translation/TranslatorQueue.cs

@@ -80,7 +80,10 @@ namespace ARMeilleure.Translation
                         return true;
                     }
 
-                    Monitor.Wait(Sync);
+                    if (!_disposed)
+                    {
+                        Monitor.Wait(Sync);
+                    }
                 }
             }
 

src/Ryujinx.Audio.Backends.OpenAL/OpenALHardwareDeviceDriver.cs

@@ -20,6 +20,25 @@ namespace Ryujinx.Audio.Backends.OpenAL
         private bool _stillRunning;
         private readonly Thread _updaterThread;
 
+        private float _volume;
+
+        public float Volume
+        {
+            get
+            {
+                return _volume;
+            }
+            set
+            {
+                _volume = value;
+
+                foreach (OpenALHardwareDeviceSession session in _sessions.Keys)
+                {
+                    session.UpdateMasterVolume(value);
+                }
+            }
+        }
+
         public OpenALHardwareDeviceDriver()
         {
             _device = ALC.OpenDevice("");
@@ -34,6 +53,8 @@ namespace Ryujinx.Audio.Backends.OpenAL
                 Name = "HardwareDeviceDriver.OpenAL",
             };
 
+            _volume = 1f;
+
             _updaterThread.Start();
         }
 
@@ -52,7 +73,7 @@ namespace Ryujinx.Audio.Backends.OpenAL
             }
         }
 
-        public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount, float volume)
+        public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount)
         {
             if (channelCount == 0)
             {
@@ -73,7 +94,7 @@ namespace Ryujinx.Audio.Backends.OpenAL
                 throw new ArgumentException($"{channelCount}");
             }
 
-            OpenALHardwareDeviceSession session = new(this, memoryManager, sampleFormat, sampleRate, channelCount, volume);
+            OpenALHardwareDeviceSession session = new(this, memoryManager, sampleFormat, sampleRate, channelCount);
 
             _sessions.TryAdd(session, 0);
 

src/Ryujinx.Audio.Backends.OpenAL/OpenALHardwareDeviceSession.cs

@@ -16,10 +16,11 @@ namespace Ryujinx.Audio.Backends.OpenAL
         private bool _isActive;
         private readonly Queue<OpenALAudioBuffer> _queuedBuffers;
         private ulong _playedSampleCount;
+        private float _volume;
 
         private readonly object _lock = new();
 
-        public OpenALHardwareDeviceSession(OpenALHardwareDeviceDriver driver, IVirtualMemoryManager memoryManager, SampleFormat requestedSampleFormat, uint requestedSampleRate, uint requestedChannelCount, float requestedVolume) : base(memoryManager, requestedSampleFormat, requestedSampleRate, requestedChannelCount)
+        public OpenALHardwareDeviceSession(OpenALHardwareDeviceDriver driver, IVirtualMemoryManager memoryManager, SampleFormat requestedSampleFormat, uint requestedSampleRate, uint requestedChannelCount) : base(memoryManager, requestedSampleFormat, requestedSampleRate, requestedChannelCount)
         {
             _driver = driver;
             _queuedBuffers = new Queue<OpenALAudioBuffer>();
@@ -27,7 +28,7 @@ namespace Ryujinx.Audio.Backends.OpenAL
             _targetFormat = GetALFormat();
             _isActive = false;
             _playedSampleCount = 0;
-            SetVolume(requestedVolume);
+            SetVolume(1f);
         }
 
         private ALFormat GetALFormat()
@@ -85,17 +86,22 @@ namespace Ryujinx.Audio.Backends.OpenAL
 
         public override void SetVolume(float volume)
         {
-            lock (_lock)
-            {
-                AL.Source(_sourceId, ALSourcef.Gain, volume);
-            }
+            _volume = volume;
+
+            UpdateMasterVolume(_driver.Volume);
         }
 
         public override float GetVolume()
         {
-            AL.GetSource(_sourceId, ALSourcef.Gain, out float volume);
+            return _volume;
+        }
 
-            return volume;
+        public void UpdateMasterVolume(float newVolume)
+        {
+            lock (_lock)
+            {
+                AL.Source(_sourceId, ALSourcef.Gain, newVolume * _volume);
+            }
         }
 
         public override void Start()

src/Ryujinx.Audio.Backends.SDL2/SDL2HardwareDeviceDriver.cs

@@ -20,6 +20,8 @@ namespace Ryujinx.Audio.Backends.SDL2
 
         private readonly bool _supportSurroundConfiguration;
 
+        public float Volume { get; set; }
+
         // TODO: Add this to SDL2-CS
         // NOTE: We use a DllImport here because of marshaling issue for spec.
 #pragma warning disable SYSLIB1054
@@ -48,6 +50,8 @@ namespace Ryujinx.Audio.Backends.SDL2
             {
                 _supportSurroundConfiguration = spec.channels >= 6;
             }
+
+            Volume = 1f;
         }
 
         public static bool IsSupported => IsSupportedInternal();
@@ -74,7 +78,7 @@ namespace Ryujinx.Audio.Backends.SDL2
             return _pauseEvent;
         }
 
-        public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount, float volume)
+        public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount)
         {
             if (channelCount == 0)
             {
@@ -91,7 +95,7 @@ namespace Ryujinx.Audio.Backends.SDL2
                 throw new NotImplementedException("Input direction is currently not implemented on SDL2 backend!");
             }
 
-            SDL2HardwareDeviceSession session = new(this, memoryManager, sampleFormat, sampleRate, channelCount, volume);
+            SDL2HardwareDeviceSession session = new(this, memoryManager, sampleFormat, sampleRate, channelCount);
 
             _sessions.TryAdd(session, 0);
 

src/Ryujinx.Audio.Backends.SDL2/SDL2HardwareDeviceSession.cs

@@ -1,8 +1,10 @@
 using Ryujinx.Audio.Backends.Common;
 using Ryujinx.Audio.Common;
 using Ryujinx.Common.Logging;
+using Ryujinx.Common.Memory;
 using Ryujinx.Memory;
 using System;
+using System.Buffers;
 using System.Collections.Concurrent;
 using System.Threading;
 
@@ -26,7 +28,7 @@ namespace Ryujinx.Audio.Backends.SDL2
         private float _volume;
         private readonly ushort _nativeSampleFormat;
 
-        public SDL2HardwareDeviceSession(SDL2HardwareDeviceDriver driver, IVirtualMemoryManager memoryManager, SampleFormat requestedSampleFormat, uint requestedSampleRate, uint requestedChannelCount, float requestedVolume) : base(memoryManager, requestedSampleFormat, requestedSampleRate, requestedChannelCount)
+        public SDL2HardwareDeviceSession(SDL2HardwareDeviceDriver driver, IVirtualMemoryManager memoryManager, SampleFormat requestedSampleFormat, uint requestedSampleRate, uint requestedChannelCount) : base(memoryManager, requestedSampleFormat, requestedSampleRate, requestedChannelCount)
         {
             _driver = driver;
             _updateRequiredEvent = _driver.GetUpdateRequiredEvent();
@@ -37,7 +39,7 @@ namespace Ryujinx.Audio.Backends.SDL2
             _nativeSampleFormat = SDL2HardwareDeviceDriver.GetSDL2Format(RequestedSampleFormat);
             _sampleCount = uint.MaxValue;
             _started = false;
-            _volume = requestedVolume;
+            _volume = 1f;
         }
 
         private void EnsureAudioStreamSetup(AudioBuffer buffer)
@@ -87,7 +89,9 @@ namespace Ryujinx.Audio.Backends.SDL2
                 return;
             }
 
-            byte[] samples = new byte[frameCount * _bytesPerFrame];
+            using SpanOwner<byte> samplesOwner = SpanOwner<byte>.Rent(frameCount * _bytesPerFrame);
+
+            Span<byte> samples = samplesOwner.Span;
 
             _ringBuffer.Read(samples, 0, samples.Length);
 
@@ -99,7 +103,7 @@ namespace Ryujinx.Audio.Backends.SDL2
                 streamSpan.Clear();
 
                 // Apply volume to written data
-                SDL_MixAudioFormat(stream, pStreamSrc, _nativeSampleFormat, (uint)samples.Length, (int)(_volume * SDL_MIX_MAXVOLUME));
+                SDL_MixAudioFormat(stream, pStreamSrc, _nativeSampleFormat, (uint)samples.Length, (int)(_driver.Volume * _volume * SDL_MIX_MAXVOLUME));
             }
 
             ulong sampleCount = GetSampleCount(samples.Length);

src/Ryujinx.Audio.Backends.SoundIo/Ryujinx.Audio.Backends.SoundIo.csproj

@@ -11,15 +11,15 @@
   </ItemGroup>
 
   <ItemGroup>
-    <ContentWithTargetPath Include="Native\libsoundio\libs\libsoundio.dll" Condition="'$(RuntimeIdentifier)' != 'linux-x64' AND '$(RuntimeIdentifier)' != 'osx-x64'">
+    <ContentWithTargetPath Include="Native\libsoundio\libs\libsoundio.dll" Condition="'$(RuntimeIdentifier)' != 'linux-x64' AND '$(RuntimeIdentifier)' != 'linux-arm64' AND '$(RuntimeIdentifier)' != 'osx-x64'">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
       <TargetPath>libsoundio.dll</TargetPath>
     </ContentWithTargetPath>
-    <ContentWithTargetPath Include="Native\libsoundio\libs\libsoundio.dylib" Condition="'$(RuntimeIdentifier)' != 'linux-x64' AND '$(RuntimeIdentifier)' != 'win-x64'">
+    <ContentWithTargetPath Include="Native\libsoundio\libs\libsoundio.dylib" Condition="'$(RuntimeIdentifier)' != 'linux-x64' AND '$(RuntimeIdentifier)' != 'linux-arm64' AND '$(RuntimeIdentifier)' != 'win-x64'">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
       <TargetPath>libsoundio.dylib</TargetPath>
     </ContentWithTargetPath>
-    <ContentWithTargetPath Include="Native\libsoundio\libs\libsoundio.so" Condition="'$(RuntimeIdentifier)' != 'win-x64' AND '$(RuntimeIdentifier)' != 'osx-x64'">
+    <ContentWithTargetPath Include="Native\libsoundio\libs\libsoundio.so" Condition="'$(RuntimeIdentifier)' != 'win-x64' AND '$(RuntimeIdentifier)' != 'osx-x64' AND '$(RuntimeIdentifier)' != 'linux-arm64'">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
       <TargetPath>libsoundio.so</TargetPath>
     </ContentWithTargetPath>

src/Ryujinx.Audio.Backends.SoundIo/SoundIoHardwareDeviceDriver.cs

@@ -19,6 +19,25 @@ namespace Ryujinx.Audio.Backends.SoundIo
         private readonly ConcurrentDictionary<SoundIoHardwareDeviceSession, byte> _sessions;
         private int _disposeState;
 
+        private float _volume = 1f;
+
+        public float Volume
+        {
+            get
+            {
+                return _volume;
+            }
+            set
+            {
+                _volume = value;
+
+                foreach (SoundIoHardwareDeviceSession session in _sessions.Keys)
+                {
+                    session.UpdateMasterVolume(value);
+                }
+            }
+        }
+
         public SoundIoHardwareDeviceDriver()
         {
             _audioContext = SoundIoContext.Create();
@@ -122,7 +141,7 @@ namespace Ryujinx.Audio.Backends.SoundIo
             return _pauseEvent;
         }
 
-        public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount, float volume)
+        public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount)
         {
             if (channelCount == 0)
             {
@@ -134,14 +153,12 @@ namespace Ryujinx.Audio.Backends.SoundIo
                 sampleRate = Constants.TargetSampleRate;
             }
 
-            volume = Math.Clamp(volume, 0, 1);
-
             if (direction != Direction.Output)
             {
                 throw new NotImplementedException("Input direction is currently not implemented on SoundIO backend!");
             }
 
-            SoundIoHardwareDeviceSession session = new(this, memoryManager, sampleFormat, sampleRate, channelCount, volume);
+            SoundIoHardwareDeviceSession session = new(this, memoryManager, sampleFormat, sampleRate, channelCount);
 
             _sessions.TryAdd(session, 0);
 

src/Ryujinx.Audio.Backends.SoundIo/SoundIoHardwareDeviceSession.cs

@@ -1,8 +1,10 @@
 using Ryujinx.Audio.Backends.Common;
 using Ryujinx.Audio.Backends.SoundIo.Native;
 using Ryujinx.Audio.Common;
+using Ryujinx.Common.Memory;
 using Ryujinx.Memory;
 using System;
+using System.Buffers;
 using System.Collections.Concurrent;
 using System.Runtime.CompilerServices;
 using System.Threading;
@@ -18,16 +20,18 @@ namespace Ryujinx.Audio.Backends.SoundIo
         private readonly DynamicRingBuffer _ringBuffer;
         private ulong _playedSampleCount;
         private readonly ManualResetEvent _updateRequiredEvent;
+        private float _volume;
         private int _disposeState;
 
-        public SoundIoHardwareDeviceSession(SoundIoHardwareDeviceDriver driver, IVirtualMemoryManager memoryManager, SampleFormat requestedSampleFormat, uint requestedSampleRate, uint requestedChannelCount, float requestedVolume) : base(memoryManager, requestedSampleFormat, requestedSampleRate, requestedChannelCount)
+        public SoundIoHardwareDeviceSession(SoundIoHardwareDeviceDriver driver, IVirtualMemoryManager memoryManager, SampleFormat requestedSampleFormat, uint requestedSampleRate, uint requestedChannelCount) : base(memoryManager, requestedSampleFormat, requestedSampleRate, requestedChannelCount)
         {
             _driver = driver;
             _updateRequiredEvent = _driver.GetUpdateRequiredEvent();
             _queuedBuffers = new ConcurrentQueue<SoundIoAudioBuffer>();
             _ringBuffer = new DynamicRingBuffer();
+            _volume = 1f;
 
-            SetupOutputStream(requestedVolume);
+            SetupOutputStream(driver.Volume);
         }
 
         private void SetupOutputStream(float requestedVolume)
@@ -35,7 +39,7 @@ namespace Ryujinx.Audio.Backends.SoundIo
             _outputStream = _driver.OpenStream(RequestedSampleFormat, RequestedSampleRate, RequestedChannelCount);
             _outputStream.WriteCallback += Update;
             _outputStream.Volume = requestedVolume;
-            // TODO: Setup other callbacks (errors, ect).
+            // TODO: Setup other callbacks (errors, etc.)
 
             _outputStream.Open();
         }
@@ -47,7 +51,7 @@ namespace Ryujinx.Audio.Backends.SoundIo
 
         public override float GetVolume()
         {
-            return _outputStream.Volume;
+            return _volume;
         }
 
         public override void PrepareToClose() { }
@@ -63,7 +67,14 @@ namespace Ryujinx.Audio.Backends.SoundIo
 
         public override void SetVolume(float volume)
         {
-            _outputStream.SetVolume(volume);
+            _volume = volume;
+
+            _outputStream.SetVolume(_driver.Volume * volume);
+        }
+
+        public void UpdateMasterVolume(float newVolume)
+        {
+            _outputStream.SetVolume(newVolume * _volume);
         }
 
         public override void Start()
@@ -111,7 +122,9 @@ namespace Ryujinx.Audio.Backends.SoundIo
 
             int channelCount = areas.Length;
 
-            byte[] samples = new byte[frameCount * bytesPerFrame];
+            using SpanOwner<byte> samplesOwner = SpanOwner<byte>.Rent(frameCount * bytesPerFrame);
+
+            Span<byte> samples = samplesOwner.Span;
 
             _ringBuffer.Read(samples, 0, samples.Length);
 

src/Ryujinx.Audio/Backends/Common/DynamicRingBuffer.cs

@@ -1,5 +1,7 @@
 using Ryujinx.Common;
+using Ryujinx.Common.Memory;
 using System;
+using System.Buffers;
 
 namespace Ryujinx.Audio.Backends.Common
 {
@@ -12,7 +14,8 @@ namespace Ryujinx.Audio.Backends.Common
 
         private readonly object _lock = new();
 
-        private byte[] _buffer;
+        private MemoryOwner<byte> _bufferOwner;
+        private Memory<byte> _buffer;
         private int _size;
         private int _headOffset;
         private int _tailOffset;
@@ -21,7 +24,8 @@ namespace Ryujinx.Audio.Backends.Common
 
         public DynamicRingBuffer(int initialCapacity = RingBufferAlignment)
         {
-            _buffer = new byte[initialCapacity];
+            _bufferOwner = MemoryOwner<byte>.RentCleared(initialCapacity);
+            _buffer = _bufferOwner.Memory;
         }
 
         public void Clear()
@@ -33,6 +37,11 @@ namespace Ryujinx.Audio.Backends.Common
 
         public void Clear(int size)
         {
+            if (size == 0)
+            {
+                return;
+            }
+
             lock (_lock)
             {
                 if (size > _size)
@@ -40,11 +49,6 @@ namespace Ryujinx.Audio.Backends.Common
                     size = _size;
                 }
 
-                if (size == 0)
-                {
-                    return;
-                }
-
                 _headOffset = (_headOffset + size) % _buffer.Length;
                 _size -= size;
 
@@ -58,28 +62,31 @@ namespace Ryujinx.Audio.Backends.Common
 
         private void SetCapacityLocked(int capacity)
         {
-            byte[] buffer = new byte[capacity];
+            MemoryOwner<byte> newBufferOwner = MemoryOwner<byte>.RentCleared(capacity);
+            Memory<byte> newBuffer = newBufferOwner.Memory;
 
             if (_size > 0)
             {
                 if (_headOffset < _tailOffset)
                 {
-                    Buffer.BlockCopy(_buffer, _headOffset, buffer, 0, _size);
+                    _buffer.Slice(_headOffset, _size).CopyTo(newBuffer);
                 }
                 else
                 {
-                    Buffer.BlockCopy(_buffer, _headOffset, buffer, 0, _buffer.Length - _headOffset);
-                    Buffer.BlockCopy(_buffer, 0, buffer, _buffer.Length - _headOffset, _tailOffset);
+                    _buffer[_headOffset..].CopyTo(newBuffer);
+                    _buffer[.._tailOffset].CopyTo(newBuffer[(_buffer.Length - _headOffset)..]);
                 }
             }
 
-            _buffer = buffer;
+            _bufferOwner.Dispose();
+
+            _bufferOwner = newBufferOwner;
+            _buffer = newBuffer;
             _headOffset = 0;
             _tailOffset = _size;
         }
 
-
-        public void Write<T>(T[] buffer, int index, int count)
+        public void Write(ReadOnlySpan<byte> buffer, int index, int count)
         {
             if (count == 0)
             {
@@ -99,17 +106,17 @@ namespace Ryujinx.Audio.Backends.Common
 
                     if (tailLength >= count)
                     {
-                        Buffer.BlockCopy(buffer, index, _buffer, _tailOffset, count);
+                        buffer.Slice(index, count).CopyTo(_buffer.Span[_tailOffset..]);
                     }
                     else
                     {
-                        Buffer.BlockCopy(buffer, index, _buffer, _tailOffset, tailLength);
-                        Buffer.BlockCopy(buffer, index + tailLength, _buffer, 0, count - tailLength);
+                        buffer.Slice(index, tailLength).CopyTo(_buffer.Span[_tailOffset..]);
+                        buffer.Slice(index + tailLength, count - tailLength).CopyTo(_buffer.Span);
                     }
                 }
                 else
                 {
-                    Buffer.BlockCopy(buffer, index, _buffer, _tailOffset, count);
+                    buffer.Slice(index, count).CopyTo(_buffer.Span[_tailOffset..]);
                 }
 
                 _size += count;
@@ -117,8 +124,13 @@ namespace Ryujinx.Audio.Backends.Common
             }
         }
 
-        public int Read<T>(T[] buffer, int index, int count)
+        public int Read(Span<byte> buffer, int index, int count)
         {
+            if (count == 0)
+            {
+                return 0;
+            }
+
             lock (_lock)
             {
                 if (count > _size)
@@ -126,14 +138,9 @@ namespace Ryujinx.Audio.Backends.Common
                     count = _size;
                 }
 
-                if (count == 0)
-                {
-                    return 0;
-                }
-
                 if (_headOffset < _tailOffset)
                 {
-                    Buffer.BlockCopy(_buffer, _headOffset, buffer, index, count);
+                    _buffer.Span.Slice(_headOffset, count).CopyTo(buffer[index..]);
                 }
                 else
                 {
@@ -141,12 +148,12 @@ namespace Ryujinx.Audio.Backends.Common
 
                     if (tailLength >= count)
                     {
-                        Buffer.BlockCopy(_buffer, _headOffset, buffer, index, count);
+                        _buffer.Span.Slice(_headOffset, count).CopyTo(buffer[index..]);
                     }
                     else
                     {
-                        Buffer.BlockCopy(_buffer, _headOffset, buffer, index, tailLength);
-                        Buffer.BlockCopy(_buffer, 0, buffer, index + tailLength, count - tailLength);
+                        _buffer.Span.Slice(_headOffset, tailLength).CopyTo(buffer[index..]);
+                        _buffer.Span[..(count - tailLength)].CopyTo(buffer[(index + tailLength)..]);
                     }
                 }
 

src/Ryujinx.Audio/Backends/CompatLayer/CompatLayerHardwareDeviceDriver.cs

@@ -16,6 +16,12 @@ namespace Ryujinx.Audio.Backends.CompatLayer
 
         public static bool IsSupported => true;
 
+        public float Volume
+        {
+            get => _realDriver.Volume;
+            set => _realDriver.Volume = value;
+        }
+
         public CompatLayerHardwareDeviceDriver(IHardwareDeviceDriver realDevice)
         {
             _realDriver = realDevice;
@@ -90,7 +96,7 @@ namespace Ryujinx.Audio.Backends.CompatLayer
             throw new ArgumentException("No valid sample format configuration found!");
         }
 
-        public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount, float volume)
+        public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount)
         {
             if (channelCount == 0)
             {
@@ -102,8 +108,6 @@ namespace Ryujinx.Audio.Backends.CompatLayer
                 sampleRate = Constants.TargetSampleRate;
             }
 
-            volume = Math.Clamp(volume, 0, 1);
-
             if (!_realDriver.SupportsDirection(direction))
             {
                 if (direction == Direction.Input)
@@ -119,7 +123,7 @@ namespace Ryujinx.Audio.Backends.CompatLayer
             SampleFormat hardwareSampleFormat = SelectHardwareSampleFormat(sampleFormat);
             uint hardwareChannelCount = SelectHardwareChannelCount(channelCount);
 
-            IHardwareDeviceSession realSession = _realDriver.OpenDeviceSession(direction, memoryManager, hardwareSampleFormat, sampleRate, hardwareChannelCount, volume);
+            IHardwareDeviceSession realSession = _realDriver.OpenDeviceSession(direction, memoryManager, hardwareSampleFormat, sampleRate, hardwareChannelCount);
 
             if (hardwareChannelCount == channelCount && hardwareSampleFormat == sampleFormat)
             {

src/Ryujinx.Audio/Backends/CompatLayer/Downmixing.cs

@@ -31,7 +31,7 @@ namespace Ryujinx.Audio.Backends.CompatLayer
         private const int Minus6dBInQ15 = (int)(0.501f * RawQ15One);
         private const int Minus12dBInQ15 = (int)(0.251f * RawQ15One);
 
-        private static readonly int[] _defaultSurroundToStereoCoefficients = new int[4]
+        private static readonly long[] _defaultSurroundToStereoCoefficients = new long[4]
         {
             RawQ15One,
             Minus3dBInQ15,
@@ -39,7 +39,7 @@ namespace Ryujinx.Audio.Backends.CompatLayer
             Minus3dBInQ15,
         };
 
-        private static readonly int[] _defaultStereoToMonoCoefficients = new int[2]
+        private static readonly long[] _defaultStereoToMonoCoefficients = new long[2]
         {
             Minus6dBInQ15,
             Minus6dBInQ15,
@@ -62,19 +62,23 @@ namespace Ryujinx.Audio.Backends.CompatLayer
         }
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private static short DownMixStereoToMono(ReadOnlySpan<int> coefficients, short left, short right)
+        private static short DownMixStereoToMono(ReadOnlySpan<long> coefficients, short left, short right)
         {
-            return (short)((left * coefficients[0] + right * coefficients[1]) >> Q15Bits);
+            return (short)Math.Clamp((left * coefficients[0] + right * coefficients[1]) >> Q15Bits, short.MinValue, short.MaxValue);
         }
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private static short DownMixSurroundToStereo(ReadOnlySpan<int> coefficients, short back, short lfe, short center, short front)
+        private static short DownMixSurroundToStereo(ReadOnlySpan<long> coefficients, short back, short lfe, short center, short front)
         {
-            return (short)((coefficients[3] * back + coefficients[2] * lfe + coefficients[1] * center + coefficients[0] * front + RawQ15HalfOne) >> Q15Bits);
+            return (short)Math.Clamp(
+                (coefficients[3] * back +
+                coefficients[2] * lfe +
+                coefficients[1] * center +
+                coefficients[0] * front + RawQ15HalfOne) >> Q15Bits, short.MinValue, short.MaxValue);
         }
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private static short[] DownMixSurroundToStereo(ReadOnlySpan<int> coefficients, ReadOnlySpan<short> data)
+        private static short[] DownMixSurroundToStereo(ReadOnlySpan<long> coefficients, ReadOnlySpan<short> data)
         {
             int samplePerChannelCount = data.Length / SurroundChannelCount;
 
@@ -94,7 +98,7 @@ namespace Ryujinx.Audio.Backends.CompatLayer
         }
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private static short[] DownMixStereoToMono(ReadOnlySpan<int> coefficients, ReadOnlySpan<short> data)
+        private static short[] DownMixStereoToMono(ReadOnlySpan<long> coefficients, ReadOnlySpan<short> data)
         {
             int samplePerChannelCount = data.Length / StereoChannelCount;
 

src/Ryujinx.Audio/Backends/DelayLayer/DelayLayerHardwareDeviceDriver.cs

@@ -16,15 +16,17 @@ namespace Ryujinx.Audio.Backends.DelayLayer
 
         public ulong SampleDelay48k;
 
+        public float Volume { get; set; }
+
         public DelayLayerHardwareDeviceDriver(IHardwareDeviceDriver realDevice, ulong sampleDelay48k)
         {
             _realDriver = realDevice;
             SampleDelay48k = sampleDelay48k;
         }
 
-        public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount, float volume)
+        public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount)
         {
-            IHardwareDeviceSession session = _realDriver.OpenDeviceSession(direction, memoryManager, sampleFormat, sampleRate, channelCount, volume);
+            IHardwareDeviceSession session = _realDriver.OpenDeviceSession(direction, memoryManager, sampleFormat, sampleRate, channelCount);
 
             if (direction == Direction.Output)
             {

src/Ryujinx.Audio/Backends/Dummy/DummyHardwareDeviceDriver.cs

@@ -14,13 +14,17 @@ namespace Ryujinx.Audio.Backends.Dummy
 
         public static bool IsSupported => true;
 
+        public float Volume { get; set; }
+
         public DummyHardwareDeviceDriver()
         {
             _updateRequiredEvent = new ManualResetEvent(false);
             _pauseEvent = new ManualResetEvent(true);
+
+            Volume = 1f;
         }
 
-        public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount, float volume)
+        public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount)
         {
             if (sampleRate == 0)
             {
@@ -34,7 +38,7 @@ namespace Ryujinx.Audio.Backends.Dummy
 
             if (direction == Direction.Output)
             {
-                return new DummyHardwareDeviceSessionOutput(this, memoryManager, sampleFormat, sampleRate, channelCount, volume);
+                return new DummyHardwareDeviceSessionOutput(this, memoryManager, sampleFormat, sampleRate, channelCount);
             }
 
             return new DummyHardwareDeviceSessionInput(this, memoryManager);

src/Ryujinx.Audio/Backends/Dummy/DummyHardwareDeviceSessionOutput.cs

@@ -13,9 +13,9 @@ namespace Ryujinx.Audio.Backends.Dummy
 
         private ulong _playedSampleCount;
 
-        public DummyHardwareDeviceSessionOutput(IHardwareDeviceDriver manager, IVirtualMemoryManager memoryManager, SampleFormat requestedSampleFormat, uint requestedSampleRate, uint requestedChannelCount, float requestedVolume) : base(memoryManager, requestedSampleFormat, requestedSampleRate, requestedChannelCount)
+        public DummyHardwareDeviceSessionOutput(IHardwareDeviceDriver manager, IVirtualMemoryManager memoryManager, SampleFormat requestedSampleFormat, uint requestedSampleRate, uint requestedChannelCount) : base(memoryManager, requestedSampleFormat, requestedSampleRate, requestedChannelCount)
         {
-            _volume = requestedVolume;
+            _volume = 1f;
             _manager = manager;
         }
 

src/Ryujinx.Audio/Input/AudioInputManager.cs

@@ -166,7 +166,6 @@ namespace Ryujinx.Audio.Input
         /// </summary>
         /// <param name="filtered">If true, filter disconnected devices</param>
         /// <returns>The list of all audio inputs name</returns>
-#pragma warning disable CA1822 // Mark member as static
         public string[] ListAudioIns(bool filtered)
         {
             if (filtered)
@@ -176,7 +175,6 @@ namespace Ryujinx.Audio.Input
 
             return new[] { Constants.DefaultDeviceInputName };
         }
-#pragma warning restore CA1822
 
         /// <summary>
         /// Open a new <see cref="AudioInputSystem"/>.
@@ -188,8 +186,6 @@ namespace Ryujinx.Audio.Input
         /// <param name="inputDeviceName">The input device name wanted by the user</param>
         /// <param name="sampleFormat">The sample format to use</param>
         /// <param name="parameter">The user configuration</param>
-        /// <param name="appletResourceUserId">The applet resource user id of the application</param>
-        /// <param name="processHandle">The process handle of the application</param>
         /// <returns>A <see cref="ResultCode"/> reporting an error or a success</returns>
         public ResultCode OpenAudioIn(out string outputDeviceName,
                                       out AudioOutputConfiguration outputConfiguration,
@@ -197,9 +193,7 @@ namespace Ryujinx.Audio.Input
                                       IVirtualMemoryManager memoryManager,
                                       string inputDeviceName,
                                       SampleFormat sampleFormat,
-                                      ref AudioInputConfiguration parameter,
-                                      ulong appletResourceUserId,
-                                      uint processHandle)
+                                      ref AudioInputConfiguration parameter)
         {
             int sessionId = AcquireSessionId();
 

src/Ryujinx.Audio/Integration/HardwareDeviceImpl.cs

@@ -13,9 +13,9 @@ namespace Ryujinx.Audio.Integration
 
         private readonly byte[] _buffer;
 
-        public HardwareDeviceImpl(IHardwareDeviceDriver deviceDriver, uint channelCount, uint sampleRate, float volume)
+        public HardwareDeviceImpl(IHardwareDeviceDriver deviceDriver, uint channelCount, uint sampleRate)
         {
-            _session = deviceDriver.OpenDeviceSession(IHardwareDeviceDriver.Direction.Output, null, SampleFormat.PcmInt16, sampleRate, channelCount, volume);
+            _session = deviceDriver.OpenDeviceSession(IHardwareDeviceDriver.Direction.Output, null, SampleFormat.PcmInt16, sampleRate, channelCount);
             _channelCount = channelCount;
             _sampleRate = sampleRate;
             _currentBufferTag = 0;

src/Ryujinx.Audio/Integration/IHardwareDeviceDriver.cs

@@ -16,7 +16,9 @@ namespace Ryujinx.Audio.Integration
             Output,
         }
 
-        IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount, float volume = 1f);
+        float Volume { get; set; }
+
+        IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount);
 
         ManualResetEvent GetUpdateRequiredEvent();
         ManualResetEvent GetPauseEvent();

src/Ryujinx.Audio/Output/AudioOutputManager.cs

@@ -165,12 +165,10 @@ namespace Ryujinx.Audio.Output
         /// Get the list of all audio outputs name.
         /// </summary>
         /// <returns>The list of all audio outputs name</returns>
-#pragma warning disable CA1822 // Mark member as static
         public string[] ListAudioOuts()
         {
             return new[] { Constants.DefaultDeviceOutputName };
         }
-#pragma warning restore CA1822
 
         /// <summary>
         /// Open a new <see cref="AudioOutputSystem"/>.
@@ -182,9 +180,6 @@ namespace Ryujinx.Audio.Output
         /// <param name="inputDeviceName">The input device name wanted by the user</param>
         /// <param name="sampleFormat">The sample format to use</param>
         /// <param name="parameter">The user configuration</param>
-        /// <param name="appletResourceUserId">The applet resource user id of the application</param>
-        /// <param name="processHandle">The process handle of the application</param>
-        /// <param name="volume">The volume level to request</param>
         /// <returns>A <see cref="ResultCode"/> reporting an error or a success</returns>
         public ResultCode OpenAudioOut(out string outputDeviceName,
                                        out AudioOutputConfiguration outputConfiguration,
@@ -192,16 +187,13 @@ namespace Ryujinx.Audio.Output
                                        IVirtualMemoryManager memoryManager,
                                        string inputDeviceName,
                                        SampleFormat sampleFormat,
-                                       ref AudioInputConfiguration parameter,
-                                       ulong appletResourceUserId,
-                                       uint processHandle,
-                                       float volume)
+                                       ref AudioInputConfiguration parameter)
         {
             int sessionId = AcquireSessionId();
 
             _sessionsBufferEvents[sessionId].Clear();
 
-            IHardwareDeviceSession deviceSession = _deviceDriver.OpenDeviceSession(IHardwareDeviceDriver.Direction.Output, memoryManager, sampleFormat, parameter.SampleRate, parameter.ChannelCount, volume);
+            IHardwareDeviceSession deviceSession = _deviceDriver.OpenDeviceSession(IHardwareDeviceDriver.Direction.Output, memoryManager, sampleFormat, parameter.SampleRate, parameter.ChannelCount);
 
             AudioOutputSystem audioOut = new(this, _lock, deviceSession, _sessionsBufferEvents[sessionId]);
 
@@ -234,41 +226,6 @@ namespace Ryujinx.Audio.Output
             return result;
         }
 
-        /// <summary>
-        /// Sets the volume for all output devices.
-        /// </summary>
-        /// <param name="volume">The volume to set.</param>
-        public void SetVolume(float volume)
-        {
-            if (_sessions != null)
-            {
-                foreach (AudioOutputSystem session in _sessions)
-                {
-                    session?.SetVolume(volume);
-                }
-            }
-        }
-
-        /// <summary>
-        /// Gets the volume for all output devices.
-        /// </summary>
-        /// <returns>A float indicating the volume level.</returns>
-        public float GetVolume()
-        {
-            if (_sessions != null)
-            {
-                foreach (AudioOutputSystem session in _sessions)
-                {
-                    if (session != null)
-                    {
-                        return session.GetVolume();
-                    }
-                }
-            }
-
-            return 0.0f;
-        }
-
         public void Dispose()
         {
             GC.SuppressFinalize(this);

src/Ryujinx.Audio/Renderer/Common/BehaviourParameter.cs

@@ -25,7 +25,7 @@ namespace Ryujinx.Audio.Renderer.Common
         public ulong Flags;
 
         /// <summary>
-        /// Represents an error during <see cref="Server.AudioRenderSystem.Update(System.Memory{byte}, System.Memory{byte}, System.ReadOnlyMemory{byte})"/>.
+        /// Represents an error during <see cref="Server.AudioRenderSystem.Update(System.Memory{byte}, System.Memory{byte}, System.Buffers.ReadOnlySequence{byte})"/>.
         /// </summary>
         [StructLayout(LayoutKind.Sequential, Pack = 1)]
         public struct ErrorInfo

src/Ryujinx.Audio/Renderer/Common/UpdateDataHeader.cs

@@ -4,7 +4,7 @@ using System.Runtime.CompilerServices;
 namespace Ryujinx.Audio.Renderer.Common
 {
     /// <summary>
-    /// Update data header used for input and output of <see cref="Server.AudioRenderSystem.Update(System.Memory{byte}, System.Memory{byte}, System.ReadOnlyMemory{byte})"/>.
+    /// Update data header used for input and output of <see cref="Server.AudioRenderSystem.Update(System.Memory{byte}, System.Memory{byte}, System.Buffers.ReadOnlySequence{byte})"/>.
     /// </summary>
     public struct UpdateDataHeader
     {

src/Ryujinx.Audio/Renderer/Common/VoiceUpdateState.cs

@@ -15,7 +15,6 @@ namespace Ryujinx.Audio.Renderer.Common
     {
         public const int Align = 0x10;
         public const int BiquadStateOffset = 0x0;
-        public const int BiquadStateSize = 0x10;
 
         /// <summary>
         /// The state of the biquad filters of this voice.

src/Ryujinx.Audio/Renderer/Dsp/AudioProcessor.cs

@@ -45,7 +45,6 @@ namespace Ryujinx.Audio.Renderer.Dsp
             _event = new ManualResetEvent(false);
         }
 
-#pragma warning disable IDE0051 // Remove unused private member
         private static uint GetHardwareChannelCount(IHardwareDeviceDriver deviceDriver)
         {
             // Get the real device driver (In case the compat layer is on top of it).
@@ -59,9 +58,8 @@ namespace Ryujinx.Audio.Renderer.Dsp
             // NOTE: We default to stereo as this will get downmixed to mono by the compat layer if it's not compatible.
             return 2;
         }
-#pragma warning restore IDE0051
 
-        public void Start(IHardwareDeviceDriver deviceDriver, float volume)
+        public void Start(IHardwareDeviceDriver deviceDriver)
         {
             OutputDevices = new IHardwareDevice[Constants.AudioRendererSessionCountMax];
 
@@ -70,7 +68,7 @@ namespace Ryujinx.Audio.Renderer.Dsp
             for (int i = 0; i < OutputDevices.Length; i++)
             {
                 // TODO: Don't hardcode sample rate.
-                OutputDevices[i] = new HardwareDeviceImpl(deviceDriver, channelCount, Constants.TargetSampleRate, volume);
+                OutputDevices[i] = new HardwareDeviceImpl(deviceDriver, channelCount, Constants.TargetSampleRate);
             }
 
             _mailbox = new Mailbox<MailboxMessage>();
@@ -231,33 +229,6 @@ namespace Ryujinx.Audio.Renderer.Dsp
             _mailbox.SendResponse(MailboxMessage.Stop);
         }
 
-        public float GetVolume()
-        {
-            if (OutputDevices != null)
-            {
-                foreach (IHardwareDevice outputDevice in OutputDevices)
-                {
-                    if (outputDevice != null)
-                    {
-                        return outputDevice.GetVolume();
-                    }
-                }
-            }
-
-            return 0f;
-        }
-
-        public void SetVolume(float volume)
-        {
-            if (OutputDevices != null)
-            {
-                foreach (IHardwareDevice outputDevice in OutputDevices)
-                {
-                    outputDevice?.SetVolume(volume);
-                }
-            }
-        }
-
         public void Dispose()
         {
             GC.SuppressFinalize(this);
@@ -269,6 +240,7 @@ namespace Ryujinx.Audio.Renderer.Dsp
             if (disposing)
             {
                 _event.Dispose();
+                _mailbox?.Dispose();
             }
         }
     }

src/Ryujinx.Audio/Renderer/Dsp/BiquadFilterHelper.cs

@@ -16,10 +16,15 @@ namespace Ryujinx.Audio.Renderer.Dsp
         /// <param name="parameter">The biquad filter parameter</param>
         /// <param name="state">The biquad filter state</param>
         /// <param name="outputBuffer">The output buffer to write the result</param>
-        /// <param name="inputBuffer">The input buffer to write the result</param>
+        /// <param name="inputBuffer">The input buffer to read the samples from</param>
         /// <param name="sampleCount">The count of samples to process</param>
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public static void ProcessBiquadFilter(ref BiquadFilterParameter parameter, ref BiquadFilterState state, Span<float> outputBuffer, ReadOnlySpan<float> inputBuffer, uint sampleCount)
+        public static void ProcessBiquadFilter(
+            ref BiquadFilterParameter parameter,
+            ref BiquadFilterState state,
+            Span<float> outputBuffer,
+            ReadOnlySpan<float> inputBuffer,
+            uint sampleCount)
         {
             float a0 = FixedPointHelper.ToFloat(parameter.Numerator[0], FixedPointPrecisionForParameter);
             float a1 = FixedPointHelper.ToFloat(parameter.Numerator[1], FixedPointPrecisionForParameter);
@@ -40,6 +45,96 @@ namespace Ryujinx.Audio.Renderer.Dsp
             }
         }
 
+        /// <summary>
+        /// Apply a single biquad filter and mix the result into the output buffer.
+        /// </summary>
+        /// <remarks>This is implemented with a direct form 1.</remarks>
+        /// <param name="parameter">The biquad filter parameter</param>
+        /// <param name="state">The biquad filter state</param>
+        /// <param name="outputBuffer">The output buffer to write the result</param>
+        /// <param name="inputBuffer">The input buffer to read the samples from</param>
+        /// <param name="sampleCount">The count of samples to process</param>
+        /// <param name="volume">Mix volume</param>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void ProcessBiquadFilterAndMix(
+            ref BiquadFilterParameter parameter,
+            ref BiquadFilterState state,
+            Span<float> outputBuffer,
+            ReadOnlySpan<float> inputBuffer,
+            uint sampleCount,
+            float volume)
+        {
+            float a0 = FixedPointHelper.ToFloat(parameter.Numerator[0], FixedPointPrecisionForParameter);
+            float a1 = FixedPointHelper.ToFloat(parameter.Numerator[1], FixedPointPrecisionForParameter);
+            float a2 = FixedPointHelper.ToFloat(parameter.Numerator[2], FixedPointPrecisionForParameter);
+
+            float b1 = FixedPointHelper.ToFloat(parameter.Denominator[0], FixedPointPrecisionForParameter);
+            float b2 = FixedPointHelper.ToFloat(parameter.Denominator[1], FixedPointPrecisionForParameter);
+
+            for (int i = 0; i < sampleCount; i++)
+            {
+                float input = inputBuffer[i];
+                float output = input * a0 + state.State0 * a1 + state.State1 * a2 + state.State2 * b1 + state.State3 * b2;
+
+                state.State1 = state.State0;
+                state.State0 = input;
+                state.State3 = state.State2;
+                state.State2 = output;
+
+                outputBuffer[i] += FloatingPointHelper.MultiplyRoundUp(output, volume);
+            }
+        }
+
+        /// <summary>
+        /// Apply a single biquad filter and mix the result into the output buffer with volume ramp.
+        /// </summary>
+        /// <remarks>This is implemented with a direct form 1.</remarks>
+        /// <param name="parameter">The biquad filter parameter</param>
+        /// <param name="state">The biquad filter state</param>
+        /// <param name="outputBuffer">The output buffer to write the result</param>
+        /// <param name="inputBuffer">The input buffer to read the samples from</param>
+        /// <param name="sampleCount">The count of samples to process</param>
+        /// <param name="volume">Initial mix volume</param>
+        /// <param name="ramp">Volume increment step</param>
+        /// <returns>Last filtered sample value</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float ProcessBiquadFilterAndMixRamp(
+            ref BiquadFilterParameter parameter,
+            ref BiquadFilterState state,
+            Span<float> outputBuffer,
+            ReadOnlySpan<float> inputBuffer,
+            uint sampleCount,
+            float volume,
+            float ramp)
+        {
+            float a0 = FixedPointHelper.ToFloat(parameter.Numerator[0], FixedPointPrecisionForParameter);
+            float a1 = FixedPointHelper.ToFloat(parameter.Numerator[1], FixedPointPrecisionForParameter);
+            float a2 = FixedPointHelper.ToFloat(parameter.Numerator[2], FixedPointPrecisionForParameter);
+
+            float b1 = FixedPointHelper.ToFloat(parameter.Denominator[0], FixedPointPrecisionForParameter);
+            float b2 = FixedPointHelper.ToFloat(parameter.Denominator[1], FixedPointPrecisionForParameter);
+
+            float mixState = 0f;
+
+            for (int i = 0; i < sampleCount; i++)
+            {
+                float input = inputBuffer[i];
+                float output = input * a0 + state.State0 * a1 + state.State1 * a2 + state.State2 * b1 + state.State3 * b2;
+
+                state.State1 = state.State0;
+                state.State0 = input;
+                state.State3 = state.State2;
+                state.State2 = output;
+
+                mixState = FloatingPointHelper.MultiplyRoundUp(output, volume);
+
+                outputBuffer[i] += mixState;
+                volume += ramp;
+            }
+
+            return mixState;
+        }
+
         /// <summary>
         /// Apply multiple biquad filter.
         /// </summary>
@@ -47,10 +142,15 @@ namespace Ryujinx.Audio.Renderer.Dsp
         /// <param name="parameters">The biquad filter parameter</param>
         /// <param name="states">The biquad filter state</param>
         /// <param name="outputBuffer">The output buffer to write the result</param>
-        /// <param name="inputBuffer">The input buffer to write the result</param>
+        /// <param name="inputBuffer">The input buffer to read the samples from</param>
         /// <param name="sampleCount">The count of samples to process</param>
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public static void ProcessBiquadFilter(ReadOnlySpan<BiquadFilterParameter> parameters, Span<BiquadFilterState> states, Span<float> outputBuffer, ReadOnlySpan<float> inputBuffer, uint sampleCount)
+        public static void ProcessBiquadFilter(
+            ReadOnlySpan<BiquadFilterParameter> parameters,
+            Span<BiquadFilterState> states,
+            Span<float> outputBuffer,
+            ReadOnlySpan<float> inputBuffer,
+            uint sampleCount)
         {
             for (int stageIndex = 0; stageIndex < parameters.Length; stageIndex++)
             {
@@ -67,7 +167,7 @@ namespace Ryujinx.Audio.Renderer.Dsp
 
                 for (int i = 0; i < sampleCount; i++)
                 {
-                    float input = inputBuffer[i];
+                    float input = stageIndex != 0 ? outputBuffer[i] : inputBuffer[i];
                     float output = input * a0 + state.State0 * a1 + state.State1 * a2 + state.State2 * b1 + state.State3 * b2;
 
                     state.State1 = state.State0;
@@ -79,5 +179,129 @@ namespace Ryujinx.Audio.Renderer.Dsp
                 }
             }
         }
+
+        /// <summary>
+        /// Apply double biquad filter and mix the result into the output buffer.
+        /// </summary>
+        /// <remarks>This is implemented with a direct form 1.</remarks>
+        /// <param name="parameters">The biquad filter parameter</param>
+        /// <param name="states">The biquad filter state</param>
+        /// <param name="outputBuffer">The output buffer to write the result</param>
+        /// <param name="inputBuffer">The input buffer to read the samples from</param>
+        /// <param name="sampleCount">The count of samples to process</param>
+        /// <param name="volume">Mix volume</param>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void ProcessDoubleBiquadFilterAndMix(
+            ref BiquadFilterParameter parameter0,
+            ref BiquadFilterParameter parameter1,
+            ref BiquadFilterState state0,
+            ref BiquadFilterState state1,
+            Span<float> outputBuffer,
+            ReadOnlySpan<float> inputBuffer,
+            uint sampleCount,
+            float volume)
+        {
+            float a00 = FixedPointHelper.ToFloat(parameter0.Numerator[0], FixedPointPrecisionForParameter);
+            float a10 = FixedPointHelper.ToFloat(parameter0.Numerator[1], FixedPointPrecisionForParameter);
+            float a20 = FixedPointHelper.ToFloat(parameter0.Numerator[2], FixedPointPrecisionForParameter);
+
+            float b10 = FixedPointHelper.ToFloat(parameter0.Denominator[0], FixedPointPrecisionForParameter);
+            float b20 = FixedPointHelper.ToFloat(parameter0.Denominator[1], FixedPointPrecisionForParameter);
+
+            float a01 = FixedPointHelper.ToFloat(parameter1.Numerator[0], FixedPointPrecisionForParameter);
+            float a11 = FixedPointHelper.ToFloat(parameter1.Numerator[1], FixedPointPrecisionForParameter);
+            float a21 = FixedPointHelper.ToFloat(parameter1.Numerator[2], FixedPointPrecisionForParameter);
+
+            float b11 = FixedPointHelper.ToFloat(parameter1.Denominator[0], FixedPointPrecisionForParameter);
+            float b21 = FixedPointHelper.ToFloat(parameter1.Denominator[1], FixedPointPrecisionForParameter);
+
+            for (int i = 0; i < sampleCount; i++)
+            {
+                float input = inputBuffer[i];
+                float output = input * a00 + state0.State0 * a10 + state0.State1 * a20 + state0.State2 * b10 + state0.State3 * b20;
+
+                state0.State1 = state0.State0;
+                state0.State0 = input;
+                state0.State3 = state0.State2;
+                state0.State2 = output;
+
+                input = output;
+                output = input * a01 + state1.State0 * a11 + state1.State1 * a21 + state1.State2 * b11 + state1.State3 * b21;
+
+                state1.State1 = state1.State0;
+                state1.State0 = input;
+                state1.State3 = state1.State2;
+                state1.State2 = output;
+
+                outputBuffer[i] += FloatingPointHelper.MultiplyRoundUp(output, volume);
+            }
+        }
+
+        /// <summary>
+        /// Apply double biquad filter and mix the result into the output buffer with volume ramp.
+        /// </summary>
+        /// <remarks>This is implemented with a direct form 1.</remarks>
+        /// <param name="parameters">The biquad filter parameter</param>
+        /// <param name="states">The biquad filter state</param>
+        /// <param name="outputBuffer">The output buffer to write the result</param>
+        /// <param name="inputBuffer">The input buffer to read the samples from</param>
+        /// <param name="sampleCount">The count of samples to process</param>
+        /// <param name="volume">Initial mix volume</param>
+        /// <param name="ramp">Volume increment step</param>
+        /// <returns>Last filtered sample value</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float ProcessDoubleBiquadFilterAndMixRamp(
+            ref BiquadFilterParameter parameter0,
+            ref BiquadFilterParameter parameter1,
+            ref BiquadFilterState state0,
+            ref BiquadFilterState state1,
+            Span<float> outputBuffer,
+            ReadOnlySpan<float> inputBuffer,
+            uint sampleCount,
+            float volume,
+            float ramp)
+        {
+            float a00 = FixedPointHelper.ToFloat(parameter0.Numerator[0], FixedPointPrecisionForParameter);
+            float a10 = FixedPointHelper.ToFloat(parameter0.Numerator[1], FixedPointPrecisionForParameter);
+            float a20 = FixedPointHelper.ToFloat(parameter0.Numerator[2], FixedPointPrecisionForParameter);
+
+            float b10 = FixedPointHelper.ToFloat(parameter0.Denominator[0], FixedPointPrecisionForParameter);
+            float b20 = FixedPointHelper.ToFloat(parameter0.Denominator[1], FixedPointPrecisionForParameter);
+
+            float a01 = FixedPointHelper.ToFloat(parameter1.Numerator[0], FixedPointPrecisionForParameter);
+            float a11 = FixedPointHelper.ToFloat(parameter1.Numerator[1], FixedPointPrecisionForParameter);
+            float a21 = FixedPointHelper.ToFloat(parameter1.Numerator[2], FixedPointPrecisionForParameter);
+
+            float b11 = FixedPointHelper.ToFloat(parameter1.Denominator[0], FixedPointPrecisionForParameter);
+            float b21 = FixedPointHelper.ToFloat(parameter1.Denominator[1], FixedPointPrecisionForParameter);
+
+            float mixState = 0f;
+
+            for (int i = 0; i < sampleCount; i++)
+            {
+                float input = inputBuffer[i];
+                float output = input * a00 + state0.State0 * a10 + state0.State1 * a20 + state0.State2 * b10 + state0.State3 * b20;
+
+                state0.State1 = state0.State0;
+                state0.State0 = input;
+                state0.State3 = state0.State2;
+                state0.State2 = output;
+
+                input = output;
+                output = input * a01 + state1.State0 * a11 + state1.State1 * a21 + state1.State2 * b11 + state1.State3 * b21;
+
+                state1.State1 = state1.State0;
+                state1.State0 = input;
+                state1.State3 = state1.State2;
+                state1.State2 = output;
+
+                mixState = FloatingPointHelper.MultiplyRoundUp(output, volume);
+
+                outputBuffer[i] += mixState;
+                volume += ramp;
+            }
+
+            return mixState;
+        }
     }
 }

src/Ryujinx.Audio/Renderer/Dsp/Command/BiquadFilterAndMixCommand.cs

@@ -0,0 +1,123 @@
+using Ryujinx.Audio.Renderer.Common;
+using Ryujinx.Audio.Renderer.Dsp.State;
+using Ryujinx.Audio.Renderer.Parameter;
+using System;
+
+namespace Ryujinx.Audio.Renderer.Dsp.Command
+{
+    public class BiquadFilterAndMixCommand : ICommand
+    {
+        public bool Enabled { get; set; }
+
+        public int NodeId { get; }
+
+        public CommandType CommandType => CommandType.BiquadFilterAndMix;
+
+        public uint EstimatedProcessingTime { get; set; }
+
+        public ushort InputBufferIndex { get; }
+        public ushort OutputBufferIndex { get; }
+
+        private BiquadFilterParameter _parameter;
+
+        public Memory<BiquadFilterState> BiquadFilterState { get; }
+        public Memory<BiquadFilterState> PreviousBiquadFilterState { get; }
+
+        public Memory<VoiceUpdateState> State { get; }
+
+        public int LastSampleIndex { get; }
+
+        public float Volume0 { get; }
+        public float Volume1 { get; }
+
+        public bool NeedInitialization { get; }
+        public bool HasVolumeRamp { get; }
+        public bool IsFirstMixBuffer { get; }
+
+        public BiquadFilterAndMixCommand(
+            float volume0,
+            float volume1,
+            uint inputBufferIndex,
+            uint outputBufferIndex,
+            int lastSampleIndex,
+            Memory<VoiceUpdateState> state,
+            ref BiquadFilterParameter filter,
+            Memory<BiquadFilterState> biquadFilterState,
+            Memory<BiquadFilterState> previousBiquadFilterState,
+            bool needInitialization,
+            bool hasVolumeRamp,
+            bool isFirstMixBuffer,
+            int nodeId)
+        {
+            Enabled = true;
+            NodeId = nodeId;
+
+            InputBufferIndex = (ushort)inputBufferIndex;
+            OutputBufferIndex = (ushort)outputBufferIndex;
+
+            _parameter = filter;
+            BiquadFilterState = biquadFilterState;
+            PreviousBiquadFilterState = previousBiquadFilterState;
+
+            State = state;
+            LastSampleIndex = lastSampleIndex;
+
+            Volume0 = volume0;
+            Volume1 = volume1;
+
+            NeedInitialization = needInitialization;
+            HasVolumeRamp = hasVolumeRamp;
+            IsFirstMixBuffer = isFirstMixBuffer;
+        }
+
+        public void Process(CommandList context)
+        {
+            ReadOnlySpan<float> inputBuffer = context.GetBuffer(InputBufferIndex);
+            Span<float> outputBuffer = context.GetBuffer(OutputBufferIndex);
+
+            if (NeedInitialization)
+            {
+                // If there is no previous state, initialize to zero.
+
+                BiquadFilterState.Span[0] = new BiquadFilterState();
+            }
+            else if (IsFirstMixBuffer)
+            {
+                // This is the first buffer, set previous state to current state.
+
+                PreviousBiquadFilterState.Span[0] = BiquadFilterState.Span[0];
+            }
+            else
+            {
+                // Rewind the current state by copying back the previous state.
+
+                BiquadFilterState.Span[0] = PreviousBiquadFilterState.Span[0];
+            }
+
+            if (HasVolumeRamp)
+            {
+                float volume = Volume0;
+                float ramp = (Volume1 - Volume0) / (int)context.SampleCount;
+
+                State.Span[0].LastSamples[LastSampleIndex] = BiquadFilterHelper.ProcessBiquadFilterAndMixRamp(
+                    ref _parameter,
+                    ref BiquadFilterState.Span[0],
+                    outputBuffer,
+                    inputBuffer,
+                    context.SampleCount,
+                    volume,
+                    ramp);
+            }
+            else
+            {
+                BiquadFilterHelper.ProcessBiquadFilterAndMix(
+                    ref _parameter,
+                    ref BiquadFilterState.Span[0],
+                    outputBuffer,
+                    inputBuffer,
+                    context.SampleCount,
+                    Volume1);
+            }
+        }
+    }
+}

src/Ryujinx.Audio/Renderer/Dsp/Command/CommandType.cs

@@ -30,8 +30,10 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
         CopyMixBuffer,
         LimiterVersion1,
         LimiterVersion2,
-        GroupedBiquadFilter,
+        MultiTapBiquadFilter,
         CaptureBuffer,
         Compressor,
+        BiquadFilterAndMix,
+        MultiTapBiquadFilterAndMix,
     }
 }

src/Ryujinx.Audio/Renderer/Dsp/Command/CompressorCommand.cs

@@ -1,9 +1,11 @@
 using Ryujinx.Audio.Renderer.Dsp.Effect;
 using Ryujinx.Audio.Renderer.Dsp.State;
+using Ryujinx.Audio.Renderer.Parameter;
 using Ryujinx.Audio.Renderer.Parameter.Effect;
 using Ryujinx.Audio.Renderer.Server.Effect;
 using System;
 using System.Diagnostics;
+using System.Runtime.InteropServices;
 
 namespace Ryujinx.Audio.Renderer.Dsp.Command
 {
@@ -21,18 +23,20 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
 
         public CompressorParameter Parameter => _parameter;
         public Memory<CompressorState> State { get; }
+        public Memory<EffectResultState> ResultState { get; }
         public ushort[] OutputBufferIndices { get; }
         public ushort[] InputBufferIndices { get; }
         public bool IsEffectEnabled { get; }
 
         private CompressorParameter _parameter;
 
-        public CompressorCommand(uint bufferOffset, CompressorParameter parameter, Memory<CompressorState> state, bool isEnabled, int nodeId)
+        public CompressorCommand(uint bufferOffset, CompressorParameter parameter, Memory<CompressorState> state, Memory<EffectResultState> resultState, bool isEnabled, int nodeId)
         {
             Enabled = true;
             NodeId = nodeId;
             _parameter = parameter;
             State = state;
+            ResultState = resultState;
 
             IsEffectEnabled = isEnabled;
 
@@ -71,9 +75,16 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
 
             if (IsEffectEnabled && _parameter.IsChannelCountValid())
             {
-                Span<IntPtr> inputBuffers = stackalloc IntPtr[Parameter.ChannelCount];
-                Span<IntPtr> outputBuffers = stackalloc IntPtr[Parameter.ChannelCount];
-                Span<float> channelInput = stackalloc float[Parameter.ChannelCount];
+                if (!ResultState.IsEmpty && _parameter.StatisticsReset)
+                {
+                    ref CompressorStatistics statistics = ref MemoryMarshal.Cast<byte, CompressorStatistics>(ResultState.Span[0].SpecificData)[0];
+
+                    statistics.Reset(_parameter.ChannelCount);
+                }
+
+                Span<IntPtr> inputBuffers = stackalloc IntPtr[_parameter.ChannelCount];
+                Span<IntPtr> outputBuffers = stackalloc IntPtr[_parameter.ChannelCount];
+                Span<float> channelInput = stackalloc float[_parameter.ChannelCount];
                 ExponentialMovingAverage inputMovingAverage = state.InputMovingAverage;
                 float unknown4 = state.Unknown4;
                 ExponentialMovingAverage compressionGainAverage = state.CompressionGainAverage;
@@ -92,7 +103,8 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
                         channelInput[channelIndex] = *((float*)inputBuffers[channelIndex] + sampleIndex);
                     }
 
-                    float newMean = inputMovingAverage.Update(FloatingPointHelper.MeanSquare(channelInput), _parameter.InputGain);
+                    float mean = FloatingPointHelper.MeanSquare(channelInput);
+                    float newMean = inputMovingAverage.Update(mean, _parameter.InputGain);
                     float y = FloatingPointHelper.Log10(newMean) * 10.0f;
                     float z = 1.0f;
 
@@ -111,7 +123,7 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
 
                         if (y >= state.Unknown14)
                         {
-                            tmpGain = ((1.0f / Parameter.Ratio) - 1.0f) * (y - Parameter.Threshold);
+                            tmpGain = ((1.0f / _parameter.Ratio) - 1.0f) * (y - _parameter.Threshold);
                         }
                         else
                         {
@@ -126,7 +138,7 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
 
                     if ((unknown4 - z) <= 0.08f)
                     {
-                        compressionEmaAlpha = Parameter.ReleaseCoefficient;
+                        compressionEmaAlpha = _parameter.ReleaseCoefficient;
 
                         if ((unknown4 - z) >= -0.08f)
                         {
@@ -140,18 +152,31 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
                     }
                     else
                     {
-                        compressionEmaAlpha = Parameter.AttackCoefficient;
+                        compressionEmaAlpha = _parameter.AttackCoefficient;
                     }
 
                     float compressionGain = compressionGainAverage.Update(z, compressionEmaAlpha);
 
-                    for (int channelIndex = 0; channelIndex < Parameter.ChannelCount; channelIndex++)
+                    for (int channelIndex = 0; channelIndex < _parameter.ChannelCount; channelIndex++)
                     {
                         *((float*)outputBuffers[channelIndex] + sampleIndex) = channelInput[channelIndex] * compressionGain * state.OutputGain;
                     }
 
                     unknown4 = unknown4New;
                     previousCompressionEmaAlpha = compressionEmaAlpha;
+
+                    if (!ResultState.IsEmpty)
+                    {
+                        ref CompressorStatistics statistics = ref MemoryMarshal.Cast<byte, CompressorStatistics>(ResultState.Span[0].SpecificData)[0];
+
+                        statistics.MinimumGain = MathF.Min(statistics.MinimumGain, compressionGain * state.OutputGain);
+                        statistics.MaximumMean = MathF.Max(statistics.MaximumMean, mean);
+
+                        for (int channelIndex = 0; channelIndex < _parameter.ChannelCount; channelIndex++)
+                        {
+                            statistics.LastSamples[channelIndex] = MathF.Abs(channelInput[channelIndex] * (1f / 32768f));
+                        }
+                    }
                 }
 
                 state.InputMovingAverage = inputMovingAverage;
@@ -161,7 +186,7 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
             }
             else
             {
-                for (int i = 0; i < Parameter.ChannelCount; i++)
+                for (int i = 0; i < _parameter.ChannelCount; i++)
                 {
                     if (InputBufferIndices[i] != OutputBufferIndices[i])
                     {

src/Ryujinx.Audio/Renderer/Dsp/Command/LimiterCommandVersion1.cs

@@ -38,10 +38,10 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
             InputBufferIndices = new ushort[Constants.VoiceChannelCountMax];
             OutputBufferIndices = new ushort[Constants.VoiceChannelCountMax];
 
-            for (int i = 0; i < Parameter.ChannelCount; i++)
+            for (int i = 0; i < _parameter.ChannelCount; i++)
             {
-                InputBufferIndices[i] = (ushort)(bufferOffset + Parameter.Input[i]);
-                OutputBufferIndices[i] = (ushort)(bufferOffset + Parameter.Output[i]);
+                InputBufferIndices[i] = (ushort)(bufferOffset + _parameter.Input[i]);
+                OutputBufferIndices[i] = (ushort)(bufferOffset + _parameter.Output[i]);
             }
         }
 
@@ -51,11 +51,11 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
 
             if (IsEffectEnabled)
             {
-                if (Parameter.Status == UsageState.Invalid)
+                if (_parameter.Status == UsageState.Invalid)
                 {
                     state = new LimiterState(ref _parameter, WorkBuffer);
                 }
-                else if (Parameter.Status == UsageState.New)
+                else if (_parameter.Status == UsageState.New)
                 {
                     LimiterState.UpdateParameter(ref _parameter);
                 }
@@ -66,56 +66,56 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
 
         private unsafe void ProcessLimiter(CommandList context, ref LimiterState state)
         {
-            Debug.Assert(Parameter.IsChannelCountValid());
+            Debug.Assert(_parameter.IsChannelCountValid());
 
-            if (IsEffectEnabled && Parameter.IsChannelCountValid())
+            if (IsEffectEnabled && _parameter.IsChannelCountValid())
             {
-                Span<IntPtr> inputBuffers = stackalloc IntPtr[Parameter.ChannelCount];
-                Span<IntPtr> outputBuffers = stackalloc IntPtr[Parameter.ChannelCount];
+                Span<IntPtr> inputBuffers = stackalloc IntPtr[_parameter.ChannelCount];
+                Span<IntPtr> outputBuffers = stackalloc IntPtr[_parameter.ChannelCount];
 
-                for (int i = 0; i < Parameter.ChannelCount; i++)
+                for (int i = 0; i < _parameter.ChannelCount; i++)
                 {
                     inputBuffers[i] = context.GetBufferPointer(InputBufferIndices[i]);
                     outputBuffers[i] = context.GetBufferPointer(OutputBufferIndices[i]);
                 }
 
-                for (int channelIndex = 0; channelIndex < Parameter.ChannelCount; channelIndex++)
+                for (int channelIndex = 0; channelIndex < _parameter.ChannelCount; channelIndex++)
                 {
                     for (int sampleIndex = 0; sampleIndex < context.SampleCount; sampleIndex++)
                     {
                         float rawInputSample = *((float*)inputBuffers[channelIndex] + sampleIndex);
 
-                        float inputSample = (rawInputSample / short.MaxValue) * Parameter.InputGain;
+                        float inputSample = (rawInputSample / short.MaxValue) * _parameter.InputGain;
 
                         float sampleInputMax = Math.Abs(inputSample);
 
-                        float inputCoefficient = Parameter.ReleaseCoefficient;
+                        float inputCoefficient = _parameter.ReleaseCoefficient;
 
                         if (sampleInputMax > state.DetectorAverage[channelIndex].Read())
                         {
-                            inputCoefficient = Parameter.AttackCoefficient;
+                            inputCoefficient = _parameter.AttackCoefficient;
                         }
 
                         float detectorValue = state.DetectorAverage[channelIndex].Update(sampleInputMax, inputCoefficient);
                         float attenuation = 1.0f;
 
-                        if (detectorValue > Parameter.Threshold)
+                        if (detectorValue > _parameter.Threshold)
                         {
-                            attenuation = Parameter.Threshold / detectorValue;
+                            attenuation = _parameter.Threshold / detectorValue;
                         }
 
-                        float outputCoefficient = Parameter.ReleaseCoefficient;
+                        float outputCoefficient = _parameter.ReleaseCoefficient;
 
                         if (state.CompressionGainAverage[channelIndex].Read() > attenuation)
                         {
-                            outputCoefficient = Parameter.AttackCoefficient;
+                            outputCoefficient = _parameter.AttackCoefficient;
                         }
 
                         float compressionGain = state.CompressionGainAverage[channelIndex].Update(attenuation, outputCoefficient);
 
-                        ref float delayedSample = ref state.DelayedSampleBuffer[channelIndex * Parameter.DelayBufferSampleCountMax + state.DelayedSampleBufferPosition[channelIndex]];
+                        ref float delayedSample = ref state.DelayedSampleBuffer[channelIndex * _parameter.DelayBufferSampleCountMax + state.DelayedSampleBufferPosition[channelIndex]];
 
-                        float outputSample = delayedSample * compressionGain * Parameter.OutputGain;
+                        float outputSample = delayedSample * compressionGain * _parameter.OutputGain;
 
                         *((float*)outputBuffers[channelIndex] + sampleIndex) = outputSample * short.MaxValue;
 
@@ -123,16 +123,16 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
 
                         state.DelayedSampleBufferPosition[channelIndex]++;
 
-                        while (state.DelayedSampleBufferPosition[channelIndex] >= Parameter.DelayBufferSampleCountMin)
+                        while (state.DelayedSampleBufferPosition[channelIndex] >= _parameter.DelayBufferSampleCountMin)
                         {
-                            state.DelayedSampleBufferPosition[channelIndex] -= Parameter.DelayBufferSampleCountMin;
+                            state.DelayedSampleBufferPosition[channelIndex] -= _parameter.DelayBufferSampleCountMin;
                         }
                     }
                 }
             }
             else
             {
-                for (int i = 0; i < Parameter.ChannelCount; i++)
+                for (int i = 0; i < _parameter.ChannelCount; i++)
                 {
                     if (InputBufferIndices[i] != OutputBufferIndices[i])
                     {

src/Ryujinx.Audio/Renderer/Dsp/Command/LimiterCommandVersion2.cs

@@ -49,10 +49,10 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
             InputBufferIndices = new ushort[Constants.VoiceChannelCountMax];
             OutputBufferIndices = new ushort[Constants.VoiceChannelCountMax];
 
-            for (int i = 0; i < Parameter.ChannelCount; i++)
+            for (int i = 0; i < _parameter.ChannelCount; i++)
             {
-                InputBufferIndices[i] = (ushort)(bufferOffset + Parameter.Input[i]);
-                OutputBufferIndices[i] = (ushort)(bufferOffset + Parameter.Output[i]);
+                InputBufferIndices[i] = (ushort)(bufferOffset + _parameter.Input[i]);
+                OutputBufferIndices[i] = (ushort)(bufferOffset + _parameter.Output[i]);
             }
         }
 
@@ -62,11 +62,11 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
 
             if (IsEffectEnabled)
             {
-                if (Parameter.Status == UsageState.Invalid)
+                if (_parameter.Status == UsageState.Invalid)
                 {
                     state = new LimiterState(ref _parameter, WorkBuffer);
                 }
-                else if (Parameter.Status == UsageState.New)
+                else if (_parameter.Status == UsageState.New)
                 {
                     LimiterState.UpdateParameter(ref _parameter);
                 }
@@ -77,63 +77,63 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
 
         private unsafe void ProcessLimiter(CommandList context, ref LimiterState state)
         {
-            Debug.Assert(Parameter.IsChannelCountValid());
+            Debug.Assert(_parameter.IsChannelCountValid());
 
-            if (IsEffectEnabled && Parameter.IsChannelCountValid())
+            if (IsEffectEnabled && _parameter.IsChannelCountValid())
             {
-                if (!ResultState.IsEmpty && Parameter.StatisticsReset)
+                if (!ResultState.IsEmpty && _parameter.StatisticsReset)
                 {
                     ref LimiterStatistics statistics = ref MemoryMarshal.Cast<byte, LimiterStatistics>(ResultState.Span[0].SpecificData)[0];
 
                     statistics.Reset();
                 }
 
-                Span<IntPtr> inputBuffers = stackalloc IntPtr[Parameter.ChannelCount];
-                Span<IntPtr> outputBuffers = stackalloc IntPtr[Parameter.ChannelCount];
+                Span<IntPtr> inputBuffers = stackalloc IntPtr[_parameter.ChannelCount];
+                Span<IntPtr> outputBuffers = stackalloc IntPtr[_parameter.ChannelCount];
 
-                for (int i = 0; i < Parameter.ChannelCount; i++)
+                for (int i = 0; i < _parameter.ChannelCount; i++)
                 {
                     inputBuffers[i] = context.GetBufferPointer(InputBufferIndices[i]);
                     outputBuffers[i] = context.GetBufferPointer(OutputBufferIndices[i]);
                 }
 
-                for (int channelIndex = 0; channelIndex < Parameter.ChannelCount; channelIndex++)
+                for (int channelIndex = 0; channelIndex < _parameter.ChannelCount; channelIndex++)
                 {
                     for (int sampleIndex = 0; sampleIndex < context.SampleCount; sampleIndex++)
                     {
                         float rawInputSample = *((float*)inputBuffers[channelIndex] + sampleIndex);
 
-                        float inputSample = (rawInputSample / short.MaxValue) * Parameter.InputGain;
+                        float inputSample = (rawInputSample / short.MaxValue) * _parameter.InputGain;
 
                         float sampleInputMax = Math.Abs(inputSample);
 
-                        float inputCoefficient = Parameter.ReleaseCoefficient;
+                        float inputCoefficient = _parameter.ReleaseCoefficient;
 
                         if (sampleInputMax > state.DetectorAverage[channelIndex].Read())
                         {
-                            inputCoefficient = Parameter.AttackCoefficient;
+                            inputCoefficient = _parameter.AttackCoefficient;
                         }
 
                         float detectorValue = state.DetectorAverage[channelIndex].Update(sampleInputMax, inputCoefficient);
                         float attenuation = 1.0f;
 
-                        if (detectorValue > Parameter.Threshold)
+                        if (detectorValue > _parameter.Threshold)
                         {
-                            attenuation = Parameter.Threshold / detectorValue;
+                            attenuation = _parameter.Threshold / detectorValue;
                         }
 
-                        float outputCoefficient = Parameter.ReleaseCoefficient;
+                        float outputCoefficient = _parameter.ReleaseCoefficient;
 
                         if (state.CompressionGainAverage[channelIndex].Read() > attenuation)
                         {
-                            outputCoefficient = Parameter.AttackCoefficient;
+                            outputCoefficient = _parameter.AttackCoefficient;
                         }
 
                         float compressionGain = state.CompressionGainAverage[channelIndex].Update(attenuation, outputCoefficient);
 
-                        ref float delayedSample = ref state.DelayedSampleBuffer[channelIndex * Parameter.DelayBufferSampleCountMax + state.DelayedSampleBufferPosition[channelIndex]];
+                        ref float delayedSample = ref state.DelayedSampleBuffer[channelIndex * _parameter.DelayBufferSampleCountMax + state.DelayedSampleBufferPosition[channelIndex]];
 
-                        float outputSample = delayedSample * compressionGain * Parameter.OutputGain;
+                        float outputSample = delayedSample * compressionGain * _parameter.OutputGain;
 
                         *((float*)outputBuffers[channelIndex] + sampleIndex) = outputSample * short.MaxValue;
 
@@ -141,9 +141,9 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
 
                         state.DelayedSampleBufferPosition[channelIndex]++;
 
-                        while (state.DelayedSampleBufferPosition[channelIndex] >= Parameter.DelayBufferSampleCountMin)
+                        while (state.DelayedSampleBufferPosition[channelIndex] >= _parameter.DelayBufferSampleCountMin)
                         {
-                            state.DelayedSampleBufferPosition[channelIndex] -= Parameter.DelayBufferSampleCountMin;
+                            state.DelayedSampleBufferPosition[channelIndex] -= _parameter.DelayBufferSampleCountMin;
                         }
 
                         if (!ResultState.IsEmpty)
@@ -158,7 +158,7 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
             }
             else
             {
-                for (int i = 0; i < Parameter.ChannelCount; i++)
+                for (int i = 0; i < _parameter.ChannelCount; i++)
                 {
                     if (InputBufferIndices[i] != OutputBufferIndices[i])
                     {

src/Ryujinx.Audio/Renderer/Dsp/Command/MixRampGroupedCommand.cs

@@ -24,7 +24,14 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
 
         public Memory<VoiceUpdateState> State { get; }
 
-        public MixRampGroupedCommand(uint mixBufferCount, uint inputBufferIndex, uint outputBufferIndex, Span<float> volume0, Span<float> volume1, Memory<VoiceUpdateState> state, int nodeId)
+        public MixRampGroupedCommand(
+            uint mixBufferCount,
+            uint inputBufferIndex,
+            uint outputBufferIndex,
+            ReadOnlySpan<float> volume0,
+            ReadOnlySpan<float> volume1,
+            Memory<VoiceUpdateState> state,
+            int nodeId)
         {
             Enabled = true;
             MixBufferCount = mixBufferCount;
@@ -48,7 +55,12 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
         }
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private static float ProcessMixRampGrouped(Span<float> outputBuffer, ReadOnlySpan<float> inputBuffer, float volume0, float volume1, int sampleCount)
+        private static float ProcessMixRampGrouped(
+            Span<float> outputBuffer,
+            ReadOnlySpan<float> inputBuffer,
+            float volume0,
+            float volume1,
+            int sampleCount)
         {
             float ramp = (volume1 - volume0) / sampleCount;
             float volume = volume0;

src/Ryujinx.Audio/Renderer/Dsp/Command/MultiTapBiquadFilterAndMixCommand.cs

@@ -0,0 +1,145 @@
+using Ryujinx.Audio.Renderer.Common;
+using Ryujinx.Audio.Renderer.Dsp.State;
+using Ryujinx.Audio.Renderer.Parameter;
+using System;
+
+namespace Ryujinx.Audio.Renderer.Dsp.Command
+{
+    public class MultiTapBiquadFilterAndMixCommand : ICommand
+    {
+        public bool Enabled { get; set; }
+
+        public int NodeId { get; }
+
+        public CommandType CommandType => CommandType.MultiTapBiquadFilterAndMix;
+
+        public uint EstimatedProcessingTime { get; set; }
+
+        public ushort InputBufferIndex { get; }
+        public ushort OutputBufferIndex { get; }
+
+        private BiquadFilterParameter _parameter0;
+        private BiquadFilterParameter _parameter1;
+
+        public Memory<BiquadFilterState> BiquadFilterState0 { get; }
+        public Memory<BiquadFilterState> BiquadFilterState1 { get; }
+        public Memory<BiquadFilterState> PreviousBiquadFilterState0 { get; }
+        public Memory<BiquadFilterState> PreviousBiquadFilterState1 { get; }
+
+        public Memory<VoiceUpdateState> State { get; }
+
+        public int LastSampleIndex { get; }
+
+        public float Volume0 { get; }
+        public float Volume1 { get; }
+
+        public bool NeedInitialization0 { get; }
+        public bool NeedInitialization1 { get; }
+        public bool HasVolumeRamp { get; }
+        public bool IsFirstMixBuffer { get; }
+
+        public MultiTapBiquadFilterAndMixCommand(
+            float volume0,
+            float volume1,
+            uint inputBufferIndex,
+            uint outputBufferIndex,
+            int lastSampleIndex,
+            Memory<VoiceUpdateState> state,
+            ref BiquadFilterParameter filter0,
+            ref BiquadFilterParameter filter1,
+            Memory<BiquadFilterState> biquadFilterState0,
+            Memory<BiquadFilterState> biquadFilterState1,
+            Memory<BiquadFilterState> previousBiquadFilterState0,
+            Memory<BiquadFilterState> previousBiquadFilterState1,
+            bool needInitialization0,
+            bool needInitialization1,
+            bool hasVolumeRamp,
+            bool isFirstMixBuffer,
+            int nodeId)
+        {
+            Enabled = true;
+            NodeId = nodeId;
+
+            InputBufferIndex = (ushort)inputBufferIndex;
+            OutputBufferIndex = (ushort)outputBufferIndex;
+
+            _parameter0 = filter0;
+            _parameter1 = filter1;
+            BiquadFilterState0 = biquadFilterState0;
+            BiquadFilterState1 = biquadFilterState1;
+            PreviousBiquadFilterState0 = previousBiquadFilterState0;
+            PreviousBiquadFilterState1 = previousBiquadFilterState1;
+
+            State = state;
+            LastSampleIndex = lastSampleIndex;
+
+            Volume0 = volume0;
+            Volume1 = volume1;
+
+            NeedInitialization0 = needInitialization0;
+            NeedInitialization1 = needInitialization1;
+            HasVolumeRamp = hasVolumeRamp;
+            IsFirstMixBuffer = isFirstMixBuffer;
+        }
+
+        private void UpdateState(Memory<BiquadFilterState> state, Memory<BiquadFilterState> previousState, bool needInitialization)
+        {
+            if (needInitialization)
+            {
+                // If there is no previous state, initialize to zero.
+
+                state.Span[0] = new BiquadFilterState();
+            }
+            else if (IsFirstMixBuffer)
+            {
+                // This is the first buffer, set previous state to current state.
+
+                previousState.Span[0] = state.Span[0];
+            }
+            else
+            {
+                // Rewind the current state by copying back the previous state.
+
+                state.Span[0] = previousState.Span[0];
+            }
+        }
+
+        public void Process(CommandList context)
+        {
+            ReadOnlySpan<float> inputBuffer = context.GetBuffer(InputBufferIndex);
+            Span<float> outputBuffer = context.GetBuffer(OutputBufferIndex);
+
+            UpdateState(BiquadFilterState0, PreviousBiquadFilterState0, NeedInitialization0);
+            UpdateState(BiquadFilterState1, PreviousBiquadFilterState1, NeedInitialization1);
+
+            if (HasVolumeRamp)
+            {
+                float volume = Volume0;
+                float ramp = (Volume1 - Volume0) / (int)context.SampleCount;
+
+                State.Span[0].LastSamples[LastSampleIndex] = BiquadFilterHelper.ProcessDoubleBiquadFilterAndMixRamp(
+                    ref _parameter0,
+                    ref _parameter1,
+                    ref BiquadFilterState0.Span[0],
+                    ref BiquadFilterState1.Span[0],
+                    outputBuffer,
+                    inputBuffer,
+                    context.SampleCount,
+                    volume,
+                    ramp);
+            }
+            else
+            {
+                BiquadFilterHelper.ProcessDoubleBiquadFilterAndMix(
+                    ref _parameter0,
+                    ref _parameter1,
+                    ref BiquadFilterState0.Span[0],
+                    ref BiquadFilterState1.Span[0],
+                    outputBuffer,
+                    inputBuffer,
+                    context.SampleCount,
+                    Volume1);
+            }
+        }
+    }
+}

src/Ryujinx.Audio/Renderer/Dsp/Command/MultiTapBiquadFilterCommand.cs

@@ -4,13 +4,13 @@ using System;
 
 namespace Ryujinx.Audio.Renderer.Dsp.Command
 {
-    public class GroupedBiquadFilterCommand : ICommand
+    public class MultiTapBiquadFilterCommand : ICommand
     {
         public bool Enabled { get; set; }
 
         public int NodeId { get; }
 
-        public CommandType CommandType => CommandType.GroupedBiquadFilter;
+        public CommandType CommandType => CommandType.MultiTapBiquadFilter;
 
         public uint EstimatedProcessingTime { get; set; }
 
@@ -20,7 +20,7 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
         private readonly int _outputBufferIndex;
         private readonly bool[] _isInitialized;
 
-        public GroupedBiquadFilterCommand(int baseIndex, ReadOnlySpan<BiquadFilterParameter> filters, Memory<BiquadFilterState> biquadFilterStateMemory, int inputBufferOffset, int outputBufferOffset, ReadOnlySpan<bool> isInitialized, int nodeId)
+        public MultiTapBiquadFilterCommand(int baseIndex, ReadOnlySpan<BiquadFilterParameter> filters, Memory<BiquadFilterState> biquadFilterStateMemory, int inputBufferOffset, int outputBufferOffset, ReadOnlySpan<bool> isInitialized, int nodeId)
         {
             _parameters = filters.ToArray();
             _biquadFilterStates = biquadFilterStateMemory;

src/Ryujinx.Audio/Renderer/Dsp/State/BiquadFilterState.cs

@@ -2,12 +2,16 @@ using System.Runtime.InteropServices;
 
 namespace Ryujinx.Audio.Renderer.Dsp.State
 {
-    [StructLayout(LayoutKind.Sequential, Pack = 1, Size = 0x10)]
+    [StructLayout(LayoutKind.Sequential, Pack = 1, Size = 0x20)]
     public struct BiquadFilterState
     {
         public float State0;
         public float State1;
         public float State2;
         public float State3;
+        public float State4;
+        public float State5;
+        public float State6;
+        public float State7;
     }
 }

src/Ryujinx.Audio/Renderer/Parameter/BehaviourErrorInfoOutStatus.cs

@@ -8,7 +8,7 @@ namespace Ryujinx.Audio.Renderer.Parameter
     /// <summary>
     /// Output information for behaviour.
     /// </summary>
-    /// <remarks>This is used to report errors to the user during <see cref="Server.AudioRenderSystem.Update(Memory{byte}, Memory{byte}, ReadOnlyMemory{byte})"/> processing.</remarks>
+    /// <remarks>This is used to report errors to the user during <see cref="Server.AudioRenderSystem.Update(Memory{byte}, Memory{byte}, System.Buffers.ReadOnlySequence{byte})"/> processing.</remarks>
     [StructLayout(LayoutKind.Sequential, Pack = 1)]
     public struct BehaviourErrorInfoOutStatus
     {

src/Ryujinx.Audio/Renderer/Parameter/Effect/CompressorParameter.cs

@@ -90,9 +90,16 @@ namespace Ryujinx.Audio.Renderer.Parameter.Effect
         public bool MakeupGainEnabled;
 
         /// <summary>
-        /// Reserved/padding.
+        /// Indicate if the compressor effect should output statistics.
         /// </summary>
-        private Array2<byte> _reserved;
+        [MarshalAs(UnmanagedType.I1)]
+        public bool StatisticsEnabled;
+
+        /// <summary>
+        /// Indicate to the DSP that the user did a statistics reset.
+        /// </summary>
+        [MarshalAs(UnmanagedType.I1)]
+        public bool StatisticsReset;
 
         /// <summary>
         /// Check if the <see cref="ChannelCount"/> is valid.

src/Ryujinx.Audio/Renderer/Parameter/Effect/CompressorStatistics.cs

@@ -0,0 +1,38 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Audio.Renderer.Parameter.Effect
+{
+    /// <summary>
+    /// Effect result state for <seealso cref="Common.EffectType.Compressor"/>.
+    /// </summary>
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    public struct CompressorStatistics
+    {
+        /// <summary>
+        /// Maximum input mean value since last reset.
+        /// </summary>
+        public float MaximumMean;
+
+        /// <summary>
+        /// Minimum output gain since last reset.
+        /// </summary>
+        public float MinimumGain;
+
+        /// <summary>
+        /// Last processed input sample, per channel.
+        /// </summary>
+        public Array6<float> LastSamples;
+
+        /// <summary>
+        /// Reset the statistics.
+        /// </summary>
+        /// <param name="channelCount">Number of channels to reset.</param>
+        public void Reset(ushort channelCount)
+        {
+            MaximumMean = 0.0f;
+            MinimumGain = 1.0f;
+            LastSamples.AsSpan()[..channelCount].Clear();
+        }
+    }
+}

src/Ryujinx.Audio/Renderer/Parameter/ISplitterDestinationInParameter.cs

@@ -0,0 +1,48 @@
+using Ryujinx.Common.Memory;
+using System;
+
+namespace Ryujinx.Audio.Renderer.Parameter
+{
+    /// <summary>
+    /// Generic interface for the splitter destination parameters.
+    /// </summary>
+    public interface ISplitterDestinationInParameter
+    {
+        /// <summary>
+        /// Target splitter destination data id.
+        /// </summary>
+        int Id { get; }
+
+        /// <summary>
+        /// The mix to output the result of the splitter.
+        /// </summary>
+        int DestinationId { get; }
+
+        /// <summary>
+        /// Biquad filter parameters.
+        /// </summary>
+        Array2<BiquadFilterParameter> BiquadFilters { get; }
+
+        /// <summary>
+        /// Set to true if in use.
+        /// </summary>
+        bool IsUsed { get; }
+
+        /// <summary>
+        /// Set to true to force resetting the previous mix volumes.
+        /// </summary>
+        bool ResetPrevVolume { get; }
+
+        /// <summary>
+        /// Mix buffer volumes.
+        /// </summary>
+        /// <remarks>Used when a splitter id is specified in the mix.</remarks>
+        Span<float> MixBufferVolume { get; }
+
+        /// <summary>
+        /// Check if the magic is valid.
+        /// </summary>
+        /// <returns>Returns true if the magic is valid.</returns>
+        bool IsMagicValid();
+    }
+}

src/Ryujinx.Audio/Renderer/Parameter/SplitterDestinationInParameterVersion1.cs

@@ -1,3 +1,4 @@
+using Ryujinx.Common.Memory;
 using Ryujinx.Common.Utilities;
 using System;
 using System.Runtime.InteropServices;
@@ -5,10 +6,10 @@ using System.Runtime.InteropServices;
 namespace Ryujinx.Audio.Renderer.Parameter
 {
     /// <summary>
-    /// Input header for a splitter destination update.
+    /// Input header for a splitter destination version 1 update.
     /// </summary>
     [StructLayout(LayoutKind.Sequential, Pack = 1)]
-    public struct SplitterDestinationInParameter
+    public struct SplitterDestinationInParameterVersion1 : ISplitterDestinationInParameter
     {
         /// <summary>
         /// Magic of the input header.
@@ -36,12 +37,18 @@ namespace Ryujinx.Audio.Renderer.Parameter
         [MarshalAs(UnmanagedType.I1)]
         public bool IsUsed;
 
+        /// <summary>
+        /// Set to true to force resetting the previous mix volumes.
+        /// </summary>
+        [MarshalAs(UnmanagedType.I1)]
+        public bool ResetPrevVolume;
+
         /// <summary>
         /// Reserved/padding.
         /// </summary>
-        private unsafe fixed byte _reserved[3];
+        private unsafe fixed byte _reserved[2];
 
-        [StructLayout(LayoutKind.Sequential, Size = 4 * Constants.MixBufferCountMax, Pack = 1)]
+        [StructLayout(LayoutKind.Sequential, Size = sizeof(float) * Constants.MixBufferCountMax, Pack = 1)]
         private struct MixArray { }
 
         /// <summary>
@@ -50,6 +57,15 @@ namespace Ryujinx.Audio.Renderer.Parameter
         /// <remarks>Used when a splitter id is specified in the mix.</remarks>
         public Span<float> MixBufferVolume => SpanHelpers.AsSpan<MixArray, float>(ref _mixBufferVolume);
 
+        readonly int ISplitterDestinationInParameter.Id => Id;
+
+        readonly int ISplitterDestinationInParameter.DestinationId => DestinationId;
+
+        readonly Array2<BiquadFilterParameter> ISplitterDestinationInParameter.BiquadFilters => default;
+
+        readonly bool ISplitterDestinationInParameter.IsUsed => IsUsed;
+        readonly bool ISplitterDestinationInParameter.ResetPrevVolume => ResetPrevVolume;
+
         /// <summary>
         /// The expected constant of any input header.
         /// </summary>

src/Ryujinx.Audio/Renderer/Parameter/SplitterDestinationInParameterVersion2.cs

@@ -0,0 +1,88 @@
+using Ryujinx.Common.Memory;
+using Ryujinx.Common.Utilities;
+using System;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Audio.Renderer.Parameter
+{
+    /// <summary>
+    /// Input header for a splitter destination version 2 update.
+    /// </summary>
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    public struct SplitterDestinationInParameterVersion2 : ISplitterDestinationInParameter
+    {
+        /// <summary>
+        /// Magic of the input header.
+        /// </summary>
+        public uint Magic;
+
+        /// <summary>
+        /// Target splitter destination data id.
+        /// </summary>
+        public int Id;
+
+        /// <summary>
+        /// Mix buffer volumes storage.
+        /// </summary>
+        private MixArray _mixBufferVolume;
+
+        /// <summary>
+        /// The mix to output the result of the splitter.
+        /// </summary>
+        public int DestinationId;
+
+        /// <summary>
+        /// Biquad filter parameters.
+        /// </summary>
+        public Array2<BiquadFilterParameter> BiquadFilters;
+
+        /// <summary>
+        /// Set to true if in use.
+        /// </summary>
+        [MarshalAs(UnmanagedType.I1)]
+        public bool IsUsed;
+
+        /// <summary>
+        /// Set to true to force resetting the previous mix volumes.
+        /// </summary>
+        [MarshalAs(UnmanagedType.I1)]
+        public bool ResetPrevVolume;
+
+        /// <summary>
+        /// Reserved/padding.
+        /// </summary>
+        private unsafe fixed byte _reserved[10];
+
+        [StructLayout(LayoutKind.Sequential, Size = sizeof(float) * Constants.MixBufferCountMax, Pack = 1)]
+        private struct MixArray { }
+
+        /// <summary>
+        /// Mix buffer volumes.
+        /// </summary>
+        /// <remarks>Used when a splitter id is specified in the mix.</remarks>
+        public Span<float> MixBufferVolume => SpanHelpers.AsSpan<MixArray, float>(ref _mixBufferVolume);
+
+        readonly int ISplitterDestinationInParameter.Id => Id;
+
+        readonly int ISplitterDestinationInParameter.DestinationId => DestinationId;
+
+        readonly Array2<BiquadFilterParameter> ISplitterDestinationInParameter.BiquadFilters => BiquadFilters;
+
+        readonly bool ISplitterDestinationInParameter.IsUsed => IsUsed;
+        readonly bool ISplitterDestinationInParameter.ResetPrevVolume => ResetPrevVolume;
+
+        /// <summary>
+        /// The expected constant of any input header.
+        /// </summary>
+        private const uint ValidMagic = 0x44444E53;
+
+        /// <summary>
+        /// Check if the magic is valid.
+        /// </summary>
+        /// <returns>Returns true if the magic is valid.</returns>
+        public readonly bool IsMagicValid()
+        {
+            return Magic == ValidMagic;
+        }
+    }
+}

src/Ryujinx.Audio/Renderer/Server/AudioRenderSystem.cs

@@ -1,6 +1,7 @@
 using Ryujinx.Audio.Integration;
 using Ryujinx.Audio.Renderer.Common;
 using Ryujinx.Audio.Renderer.Dsp.Command;
+using Ryujinx.Audio.Renderer.Dsp.State;
 using Ryujinx.Audio.Renderer.Parameter;
 using Ryujinx.Audio.Renderer.Server.Effect;
 using Ryujinx.Audio.Renderer.Server.MemoryPool;
@@ -173,6 +174,22 @@ namespace Ryujinx.Audio.Renderer.Server
                 return ResultCode.WorkBufferTooSmall;
             }
 
+            Memory<BiquadFilterState> splitterBqfStates = Memory<BiquadFilterState>.Empty;
+
+            if (_behaviourContext.IsBiquadFilterParameterForSplitterEnabled() &&
+                parameter.SplitterCount > 0 &&
+                parameter.SplitterDestinationCount > 0)
+            {
+                splitterBqfStates = workBufferAllocator.Allocate<BiquadFilterState>(parameter.SplitterDestinationCount * SplitterContext.BqfStatesPerDestination, 0x10);
+
+                if (splitterBqfStates.IsEmpty)
+                {
+                    return ResultCode.WorkBufferTooSmall;
+                }
+
+                splitterBqfStates.Span.Clear();
+            }
+
             // Invalidate DSP cache on what was currently allocated with workBuffer.
             AudioProcessorMemoryManager.InvalidateDspCache(_dspMemoryPoolState.Translate(workBuffer, workBufferAllocator.Offset), workBufferAllocator.Offset);
 
@@ -292,7 +309,7 @@ namespace Ryujinx.Audio.Renderer.Server
                 state = MemoryPoolState.Create(MemoryPoolState.LocationType.Cpu);
             }
 
-            if (!_splitterContext.Initialize(ref _behaviourContext, ref parameter, workBufferAllocator))
+            if (!_splitterContext.Initialize(ref _behaviourContext, ref parameter, workBufferAllocator, splitterBqfStates))
             {
                 return ResultCode.WorkBufferTooSmall;
             }
@@ -386,7 +403,7 @@ namespace Ryujinx.Audio.Renderer.Server
             }
         }
 
-        public ResultCode Update(Memory<byte> output, Memory<byte> performanceOutput, ReadOnlyMemory<byte> input)
+        public ResultCode Update(Memory<byte> output, Memory<byte> performanceOutput, ReadOnlySequence<byte> input)
         {
             lock (_lock)
             {
@@ -419,14 +436,16 @@ namespace Ryujinx.Audio.Renderer.Server
                     return result;
                 }
 
-                result = stateUpdater.UpdateVoices(_voiceContext, _memoryPools);
+                PoolMapper poolMapper = new PoolMapper(_processHandle, _memoryPools, _behaviourContext.IsMemoryPoolForceMappingEnabled());
+
+                result = stateUpdater.UpdateVoices(_voiceContext, poolMapper);
 
                 if (result != ResultCode.Success)
                 {
                     return result;
                 }
 
-                result = stateUpdater.UpdateEffects(_effectContext, _isActive, _memoryPools);
+                result = stateUpdater.UpdateEffects(_effectContext, _isActive, poolMapper);
 
                 if (result != ResultCode.Success)
                 {
@@ -450,7 +469,7 @@ namespace Ryujinx.Audio.Renderer.Server
                     return result;
                 }
 
-                result = stateUpdater.UpdateSinks(_sinkContext, _memoryPools);
+                result = stateUpdater.UpdateSinks(_sinkContext, poolMapper);
 
                 if (result != ResultCode.Success)
                 {
@@ -773,6 +792,13 @@ namespace Ryujinx.Audio.Renderer.Server
             // Splitter
             size = SplitterContext.GetWorkBufferSize(size, ref behaviourContext, ref parameter);
 
+            if (behaviourContext.IsBiquadFilterParameterForSplitterEnabled() &&
+                parameter.SplitterCount > 0 &&
+                parameter.SplitterDestinationCount > 0)
+            {
+                size = WorkBufferAllocator.GetTargetSize<BiquadFilterState>(size, parameter.SplitterDestinationCount * SplitterContext.BqfStatesPerDestination, 0x10);
+            }
+
             // DSP Voice
             size = WorkBufferAllocator.GetTargetSize<VoiceUpdateState>(size, parameter.VoiceCount, VoiceUpdateState.Align);
 

src/Ryujinx.Audio/Renderer/Server/AudioRendererManager.cs

@@ -177,12 +177,12 @@ namespace Ryujinx.Audio.Renderer.Server
         /// <summary>
         /// Start the <see cref="AudioProcessor"/> and worker thread.
         /// </summary>
-        private void StartLocked(float volume)
+        private void StartLocked()
         {
             _isRunning = true;
 
             // TODO: virtual device mapping (IAudioDevice)
-            Processor.Start(_deviceDriver, volume);
+            Processor.Start(_deviceDriver);
 
             _workerThread = new Thread(SendCommands)
             {
@@ -254,7 +254,7 @@ namespace Ryujinx.Audio.Renderer.Server
         /// Register a new <see cref="AudioRenderSystem"/>.
         /// </summary>
         /// <param name="renderer">The <see cref="AudioRenderSystem"/> to register.</param>
-        private void Register(AudioRenderSystem renderer, float volume)
+        private void Register(AudioRenderSystem renderer)
         {
             lock (_sessionLock)
             {
@@ -265,7 +265,7 @@ namespace Ryujinx.Audio.Renderer.Server
             {
                 if (!_isRunning)
                 {
-                    StartLocked(volume);
+                    StartLocked();
                 }
             }
         }
@@ -312,8 +312,7 @@ namespace Ryujinx.Audio.Renderer.Server
             ulong appletResourceUserId,
             ulong workBufferAddress,
             ulong workBufferSize,
-            uint processHandle,
-            float volume)
+            uint processHandle)
         {
             int sessionId = AcquireSessionId();
 
@@ -338,7 +337,7 @@ namespace Ryujinx.Audio.Renderer.Server
             {
                 renderer = audioRenderer;
 
-                Register(renderer, volume);
+                Register(renderer);
             }
             else
             {
@@ -350,21 +349,6 @@ namespace Ryujinx.Audio.Renderer.Server
             return result;
         }
 
-        public float GetVolume()
-        {
-            if (Processor != null)
-            {
-                return Processor.GetVolume();
-            }
-
-            return 0f;
-        }
-
-        public void SetVolume(float volume)
-        {
-            Processor?.SetVolume(volume);
-        }
-
         public void Dispose()
         {
             GC.SuppressFinalize(this);

src/Ryujinx.Audio/Renderer/Server/BehaviourContext.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Buffers;
 using System.Diagnostics;
 using static Ryujinx.Audio.Renderer.Common.BehaviourParameter;
 
@@ -44,7 +45,6 @@ namespace Ryujinx.Audio.Renderer.Server
         /// <see cref="Parameter.RendererInfoOutStatus"/> was added to supply the count of update done sent to the DSP.
         /// A new version of the command estimator was added to address timing changes caused by the voice changes.
         /// Additionally, the rendering limit percent was incremented to 80%.
-        ///
         /// </summary>
         /// <remarks>This was added in system update 6.0.0</remarks>
         public const int Revision5 = 5 << 24;
@@ -100,10 +100,26 @@ namespace Ryujinx.Audio.Renderer.Server
         /// <remarks>This was added in system update 14.0.0 but some changes were made in 15.0.0</remarks>
         public const int Revision11 = 11 << 24;
 
+        /// <summary>
+        /// REV12:
+        /// Two new commands were added to for biquad filtering and mixing (with optinal volume ramp) on the same command.
+        /// Splitter destinations can now specify up to two biquad filtering parameters, used for filtering the buffer before mixing.
+        /// </summary>
+        /// <remarks>This was added in system update 17.0.0</remarks>
+        public const int Revision12 = 12 << 24;
+
+        /// <summary>
+        /// REV13:
+        /// The compressor effect can now output statistics.
+        /// Splitter destinations now explicitly reset the previous mix volume, instead of doing so on first use.
+        /// </summary>
+        /// <remarks>This was added in system update 18.0.0</remarks>
+        public const int Revision13 = 13 << 24;
+
         /// <summary>
         /// Last revision supported by the implementation.
         /// </summary>
-        public const int LastRevision = Revision11;
+        public const int LastRevision = Revision13;
 
         /// <summary>
         /// Target revision magic supported by the implementation.
@@ -211,7 +227,7 @@ namespace Ryujinx.Audio.Renderer.Server
         /// <summary>
         /// Check if the audio renderer should fix the GC-ADPCM context not being provided to the DSP.
         /// </summary>
-        /// <returns>True if if the audio renderer should fix it.</returns>
+        /// <returns>True if the audio renderer should fix it.</returns>
         public bool IsAdpcmLoopContextBugFixed()
         {
             return CheckFeatureSupported(UserRevision, BaseRevisionMagic + Revision2);
@@ -273,7 +289,7 @@ namespace Ryujinx.Audio.Renderer.Server
         }
 
         /// <summary>
-        /// Check if the audio renderer should trust the user destination count in <see cref="Splitter.SplitterState.Update(Splitter.SplitterContext, ref Parameter.SplitterInParameter, ReadOnlySpan{byte})"/>.
+        /// Check if the audio renderer should trust the user destination count in <see cref="Renderer.Server.Splitter.SplitterState.Update(Renderer.Server.Splitter.SplitterContext, Renderer.Parameter.SplitterInParameter, SequenceReader{byte})"/>.
         /// </summary>
         /// <returns>True if the audio renderer should trust the user destination count.</returns>
         public bool IsSplitterBugFixed()
@@ -353,7 +369,7 @@ namespace Ryujinx.Audio.Renderer.Server
         /// Check if the audio renderer should use an optimized Biquad Filter (Direct Form 1) in case of two biquad filters are defined on a voice.
         /// </summary>
         /// <returns>True if the audio renderer should use the optimization.</returns>
-        public bool IsBiquadFilterGroupedOptimizationSupported()
+        public bool UseMultiTapBiquadFilterProcessing()
         {
             return CheckFeatureSupported(UserRevision, BaseRevisionMagic + Revision10);
         }
@@ -367,6 +383,24 @@ namespace Ryujinx.Audio.Renderer.Server
             return CheckFeatureSupported(UserRevision, BaseRevisionMagic + Revision11);
         }
 
+        /// <summary>
+        /// Check if the audio renderer should support biquad filter on splitter.
+        /// </summary>
+        /// <returns>True if the audio renderer support biquad filter on splitter</returns>
+        public bool IsBiquadFilterParameterForSplitterEnabled()
+        {
+            return CheckFeatureSupported(UserRevision, BaseRevisionMagic + Revision12);
+        }
+
+        /// <summary>
+        /// Check if the audio renderer should support explicit previous mix volume reset on splitter.
+        /// </summary>
+        /// <returns>True if the audio renderer support explicit previous mix volume reset on splitter</returns>
+        public bool IsSplitterPrevVolumeResetSupported()
+        {
+            return CheckFeatureSupported(UserRevision, BaseRevisionMagic + Revision13);
+        }
+
         /// <summary>
         /// Get the version of the <see cref="ICommandProcessingTimeEstimator"/>.
         /// </summary>

src/Ryujinx.Audio/Renderer/Server/CommandBuffer.cs

@@ -204,7 +204,7 @@ namespace Ryujinx.Audio.Renderer.Server
         }
 
         /// <summary>
-        /// Create a new <see cref="GroupedBiquadFilterCommand"/>.
+        /// Create a new <see cref="MultiTapBiquadFilterCommand"/>.
         /// </summary>
         /// <param name="baseIndex">The base index of the input and output buffer.</param>
         /// <param name="filters">The biquad filter parameters.</param>
@@ -213,9 +213,9 @@ namespace Ryujinx.Audio.Renderer.Server
         /// <param name="outputBufferOffset">The output buffer offset.</param>
         /// <param name="isInitialized">Set to true if the biquad filter state is initialized.</param>
         /// <param name="nodeId">The node id associated to this command.</param>
-        public void GenerateGroupedBiquadFilter(int baseIndex, ReadOnlySpan<BiquadFilterParameter> filters, Memory<BiquadFilterState> biquadFilterStatesMemory, int inputBufferOffset, int outputBufferOffset, ReadOnlySpan<bool> isInitialized, int nodeId)
+        public void GenerateMultiTapBiquadFilter(int baseIndex, ReadOnlySpan<BiquadFilterParameter> filters, Memory<BiquadFilterState> biquadFilterStatesMemory, int inputBufferOffset, int outputBufferOffset, ReadOnlySpan<bool> isInitialized, int nodeId)
         {
-            GroupedBiquadFilterCommand command = new(baseIndex, filters, biquadFilterStatesMemory, inputBufferOffset, outputBufferOffset, isInitialized, nodeId);
+            MultiTapBiquadFilterCommand command = new(baseIndex, filters, biquadFilterStatesMemory, inputBufferOffset, outputBufferOffset, isInitialized, nodeId);
 
             command.EstimatedProcessingTime = _commandProcessingTimeEstimator.Estimate(command);
 
@@ -232,7 +232,7 @@ namespace Ryujinx.Audio.Renderer.Server
         /// <param name="volume">The new volume.</param>
         /// <param name="state">The <see cref="VoiceUpdateState"/> to generate the command from.</param>
         /// <param name="nodeId">The node id associated to this command.</param>
-        public void GenerateMixRampGrouped(uint mixBufferCount, uint inputBufferIndex, uint outputBufferIndex, Span<float> previousVolume, Span<float> volume, Memory<VoiceUpdateState> state, int nodeId)
+        public void GenerateMixRampGrouped(uint mixBufferCount, uint inputBufferIndex, uint outputBufferIndex, ReadOnlySpan<float> previousVolume, ReadOnlySpan<float> volume, Memory<VoiceUpdateState> state, int nodeId)
         {
             MixRampGroupedCommand command = new(mixBufferCount, inputBufferIndex, outputBufferIndex, previousVolume, volume, state, nodeId);
 
@@ -260,6 +260,120 @@ namespace Ryujinx.Audio.Renderer.Server
             AddCommand(command);
         }
 
+        /// <summary>
+        /// Generate a new <see cref="BiquadFilterAndMixCommand"/>.
+        /// </summary>
+        /// <param name="previousVolume">The previous volume.</param>
+        /// <param name="volume">The new volume.</param>
+        /// <param name="inputBufferIndex">The input buffer index.</param>
+        /// <param name="outputBufferIndex">The output buffer index.</param>
+        /// <param name="lastSampleIndex">The index in the <see cref="VoiceUpdateState.LastSamples"/> array to store the ramped sample.</param>
+        /// <param name="state">The <see cref="VoiceUpdateState"/> to generate the command from.</param>
+        /// <param name="filter">The biquad filter parameter.</param>
+        /// <param name="biquadFilterState">The biquad state.</param>
+        /// <param name="previousBiquadFilterState">The previous biquad state.</param>
+        /// <param name="needInitialization">Set to true if the biquad filter state needs to be initialized.</param>
+        /// <param name="hasVolumeRamp">Set to true if the mix has volume ramp, and <paramref name="previousVolume"/> should be taken into account.</param>
+        /// <param name="isFirstMixBuffer">Set to true if the buffer is the first mix buffer.</param>
+        /// <param name="nodeId">The node id associated to this command.</param>
+        public void GenerateBiquadFilterAndMix(
+            float previousVolume,
+            float volume,
+            uint inputBufferIndex,
+            uint outputBufferIndex,
+            int lastSampleIndex,
+            Memory<VoiceUpdateState> state,
+            ref BiquadFilterParameter filter,
+            Memory<BiquadFilterState> biquadFilterState,
+            Memory<BiquadFilterState> previousBiquadFilterState,
+            bool needInitialization,
+            bool hasVolumeRamp,
+            bool isFirstMixBuffer,
+            int nodeId)
+        {
+            BiquadFilterAndMixCommand command = new(
+                previousVolume,
+                volume,
+                inputBufferIndex,
+                outputBufferIndex,
+                lastSampleIndex,
+                state,
+                ref filter,
+                biquadFilterState,
+                previousBiquadFilterState,
+                needInitialization,
+                hasVolumeRamp,
+                isFirstMixBuffer,
+                nodeId);
+
+            command.EstimatedProcessingTime = _commandProcessingTimeEstimator.Estimate(command);
+
+            AddCommand(command);
+        }
+
+        /// <summary>
+        /// Generate a new <see cref="MultiTapBiquadFilterAndMixCommand"/>.
+        /// </summary>
+        /// <param name="previousVolume">The previous volume.</param>
+        /// <param name="volume">The new volume.</param>
+        /// <param name="inputBufferIndex">The input buffer index.</param>
+        /// <param name="outputBufferIndex">The output buffer index.</param>
+        /// <param name="lastSampleIndex">The index in the <see cref="VoiceUpdateState.LastSamples"/> array to store the ramped sample.</param>
+        /// <param name="state">The <see cref="VoiceUpdateState"/> to generate the command from.</param>
+        /// <param name="filter0">First biquad filter parameter.</param>
+        /// <param name="filter1">Second biquad filter parameter.</param>
+        /// <param name="biquadFilterState0">First biquad state.</param>
+        /// <param name="biquadFilterState1">Second biquad state.</param>
+        /// <param name="previousBiquadFilterState0">First previous biquad state.</param>
+        /// <param name="previousBiquadFilterState1">Second previous biquad state.</param>
+        /// <param name="needInitialization0">Set to true if the first biquad filter state needs to be initialized.</param>
+        /// <param name="needInitialization1">Set to true if the second biquad filter state needs to be initialized.</param>
+        /// <param name="hasVolumeRamp">Set to true if the mix has volume ramp, and <paramref name="previousVolume"/> should be taken into account.</param>
+        /// <param name="isFirstMixBuffer">Set to true if the buffer is the first mix buffer.</param>
+        /// <param name="nodeId">The node id associated to this command.</param>
+        public void GenerateMultiTapBiquadFilterAndMix(
+            float previousVolume,
+            float volume,
+            uint inputBufferIndex,
+            uint outputBufferIndex,
+            int lastSampleIndex,
+            Memory<VoiceUpdateState> state,
+            ref BiquadFilterParameter filter0,
+            ref BiquadFilterParameter filter1,
+            Memory<BiquadFilterState> biquadFilterState0,
+            Memory<BiquadFilterState> biquadFilterState1,
+            Memory<BiquadFilterState> previousBiquadFilterState0,
+            Memory<BiquadFilterState> previousBiquadFilterState1,
+            bool needInitialization0,
+            bool needInitialization1,
+            bool hasVolumeRamp,
+            bool isFirstMixBuffer,
+            int nodeId)
+        {
+            MultiTapBiquadFilterAndMixCommand command = new(
+                previousVolume,
+                volume,
+                inputBufferIndex,
+                outputBufferIndex,
+                lastSampleIndex,
+                state,
+                ref filter0,
+                ref filter1,
+                biquadFilterState0,
+                biquadFilterState1,
+                previousBiquadFilterState0,
+                previousBiquadFilterState1,
+                needInitialization0,
+                needInitialization1,
+                hasVolumeRamp,
+                isFirstMixBuffer,
+                nodeId);
+
+            command.EstimatedProcessingTime = _commandProcessingTimeEstimator.Estimate(command);
+
+            AddCommand(command);
+        }
+
         /// <summary>
         /// Generate a new <see cref="DepopForMixBuffersCommand"/>.
         /// </summary>
@@ -268,7 +382,7 @@ namespace Ryujinx.Audio.Renderer.Server
         /// <param name="bufferCount">The buffer count.</param>
         /// <param name="nodeId">The node id associated to this command.</param>
         /// <param name="sampleRate">The target sample rate in use.</param>
-        public void GenerateDepopForMixBuffersCommand(Memory<float> depopBuffer, uint bufferOffset, uint bufferCount, int nodeId, uint sampleRate)
+        public void GenerateDepopForMixBuffers(Memory<float> depopBuffer, uint bufferOffset, uint bufferCount, int nodeId, uint sampleRate)
         {
             DepopForMixBuffersCommand command = new(depopBuffer, bufferOffset, bufferCount, nodeId, sampleRate);
 
@@ -469,11 +583,20 @@ namespace Ryujinx.Audio.Renderer.Server
             }
         }
 
-        public void GenerateCompressorEffect(uint bufferOffset, CompressorParameter parameter, Memory<CompressorState> state, bool isEnabled, int nodeId)
+        /// <summary>
+        /// Generate a new <see cref="CompressorCommand"/>.
+        /// </summary>
+        /// <param name="bufferOffset">The target buffer offset.</param>
+        /// <param name="parameter">The compressor parameter.</param>
+        /// <param name="state">The compressor state.</param>
+        /// <param name="effectResultState">The DSP effect result state.</param>
+        /// <param name="isEnabled">Set to true if the effect should be active.</param>
+        /// <param name="nodeId">The node id associated to this command.</param>
+        public void GenerateCompressorEffect(uint bufferOffset, CompressorParameter parameter, Memory<CompressorState> state, Memory<EffectResultState> effectResultState, bool isEnabled, int nodeId)
         {
             if (parameter.IsChannelCountValid())
             {
-                CompressorCommand command = new(bufferOffset, parameter, state, isEnabled, nodeId);
+                CompressorCommand command = new(bufferOffset, parameter, state, effectResultState, isEnabled, nodeId);
 
                 command.EstimatedProcessingTime = _commandProcessingTimeEstimator.Estimate(command);
 

src/Ryujinx.Audio/Renderer/Server/CommandGenerator.cs

@@ -12,6 +12,7 @@ using Ryujinx.Audio.Renderer.Server.Voice;
 using Ryujinx.Audio.Renderer.Utils;
 using System;
 using System.Diagnostics;
+using System.Runtime.CompilerServices;
 
 namespace Ryujinx.Audio.Renderer.Server
 {
@@ -46,12 +47,13 @@ namespace Ryujinx.Audio.Renderer.Server
             {
                 ref MixState mix = ref _mixContext.GetState(voiceState.MixId);
 
-                _commandBuffer.GenerateDepopPrepare(dspState,
-                                                    _rendererContext.DepopBuffer,
-                                                    mix.BufferCount,
-                                                    mix.BufferOffset,
-                                                    voiceState.NodeId,
-                                                    voiceState.WasPlaying);
+                _commandBuffer.GenerateDepopPrepare(
+                    dspState,
+                    _rendererContext.DepopBuffer,
+                    mix.BufferCount,
+                    mix.BufferOffset,
+                    voiceState.NodeId,
+                    voiceState.WasPlaying);
             }
             else if (voiceState.SplitterId != Constants.UnusedSplitterId)
             {
@@ -59,15 +61,13 @@ namespace Ryujinx.Audio.Renderer.Server
 
                 while (true)
                 {
-                    Span<SplitterDestination> destinationSpan = _splitterContext.GetDestination((int)voiceState.SplitterId, destinationId++);
+                    SplitterDestination destination = _splitterContext.GetDestination((int)voiceState.SplitterId, destinationId++);
 
-                    if (destinationSpan.IsEmpty)
+                    if (destination.IsNull)
                     {
                         break;
                     }
 
-                    ref SplitterDestination destination = ref destinationSpan[0];
-
                     if (destination.IsConfigured())
                     {
                         int mixId = destination.DestinationId;
@@ -76,12 +76,13 @@ namespace Ryujinx.Audio.Renderer.Server
                         {
                             ref MixState mix = ref _mixContext.GetState(mixId);
 
-                            _commandBuffer.GenerateDepopPrepare(dspState,
-                                                                _rendererContext.DepopBuffer,
-                                                                mix.BufferCount,
-                                                                mix.BufferOffset,
-                                                                voiceState.NodeId,
-                                                                voiceState.WasPlaying);
+                            _commandBuffer.GenerateDepopPrepare(
+                                dspState,
+                                _rendererContext.DepopBuffer,
+                                mix.BufferCount,
+                                mix.BufferOffset,
+                                voiceState.NodeId,
+                                voiceState.WasPlaying);
 
                             destination.MarkAsNeedToUpdateInternalState();
                         }
@@ -95,35 +96,39 @@ namespace Ryujinx.Audio.Renderer.Server
 
                 if (_rendererContext.BehaviourContext.IsWaveBufferVersion2Supported())
                 {
-                    _commandBuffer.GenerateDataSourceVersion2(ref voiceState,
-                                                              dspState,
-                                                              (ushort)_rendererContext.MixBufferCount,
-                                                              (ushort)channelIndex,
-                                                              voiceState.NodeId);
+                    _commandBuffer.GenerateDataSourceVersion2(
+                        ref voiceState,
+                        dspState,
+                        (ushort)_rendererContext.MixBufferCount,
+                        (ushort)channelIndex,
+                        voiceState.NodeId);
                 }
                 else
                 {
                     switch (voiceState.SampleFormat)
                     {
                         case SampleFormat.PcmInt16:
-                            _commandBuffer.GeneratePcmInt16DataSourceVersion1(ref voiceState,
-                                                                              dspState,
-                                                                              (ushort)_rendererContext.MixBufferCount,
-                                                                              (ushort)channelIndex,
-                                                                              voiceState.NodeId);
+                            _commandBuffer.GeneratePcmInt16DataSourceVersion1(
+                                ref voiceState,
+                                dspState,
+                                (ushort)_rendererContext.MixBufferCount,
+                                (ushort)channelIndex,
+                                voiceState.NodeId);
                             break;
                         case SampleFormat.PcmFloat:
-                            _commandBuffer.GeneratePcmFloatDataSourceVersion1(ref voiceState,
-                                                                              dspState,
-                                                                              (ushort)_rendererContext.MixBufferCount,
-                                                                              (ushort)channelIndex,
-                                                                              voiceState.NodeId);
+                            _commandBuffer.GeneratePcmFloatDataSourceVersion1(
+                                ref voiceState,
+                                dspState,
+                                (ushort)_rendererContext.MixBufferCount,
+                                (ushort)channelIndex,
+                                voiceState.NodeId);
                             break;
                         case SampleFormat.Adpcm:
-                            _commandBuffer.GenerateAdpcmDataSourceVersion1(ref voiceState,
-                                                                           dspState,
-                                                                           (ushort)_rendererContext.MixBufferCount,
-                                                                           voiceState.NodeId);
+                            _commandBuffer.GenerateAdpcmDataSourceVersion1(
+                                ref voiceState,
+                                dspState,
+                                (ushort)_rendererContext.MixBufferCount,
+                                voiceState.NodeId);
                             break;
                         default:
                             throw new NotImplementedException($"Unsupported data source {voiceState.SampleFormat}");
@@ -134,14 +139,14 @@ namespace Ryujinx.Audio.Renderer.Server
 
         private void GenerateBiquadFilterForVoice(ref VoiceState voiceState, Memory<VoiceUpdateState> state, int baseIndex, int bufferOffset, int nodeId)
         {
-            bool supportsOptimizedPath = _rendererContext.BehaviourContext.IsBiquadFilterGroupedOptimizationSupported();
+            bool supportsOptimizedPath = _rendererContext.BehaviourContext.UseMultiTapBiquadFilterProcessing();
 
             if (supportsOptimizedPath && voiceState.BiquadFilters[0].Enable && voiceState.BiquadFilters[1].Enable)
             {
-                Memory<byte> biquadStateRawMemory = SpanMemoryManager<byte>.Cast(state)[..(VoiceUpdateState.BiquadStateSize * Constants.VoiceBiquadFilterCount)];
+                Memory<byte> biquadStateRawMemory = SpanMemoryManager<byte>.Cast(state)[..(Unsafe.SizeOf<BiquadFilterState>() * Constants.VoiceBiquadFilterCount)];
                 Memory<BiquadFilterState> stateMemory = SpanMemoryManager<BiquadFilterState>.Cast(biquadStateRawMemory);
 
-                _commandBuffer.GenerateGroupedBiquadFilter(baseIndex, voiceState.BiquadFilters.AsSpan(), stateMemory, bufferOffset, bufferOffset, voiceState.BiquadFilterNeedInitialization, nodeId);
+                _commandBuffer.GenerateMultiTapBiquadFilter(baseIndex, voiceState.BiquadFilters.AsSpan(), stateMemory, bufferOffset, bufferOffset, voiceState.BiquadFilterNeedInitialization, nodeId);
             }
             else
             {
@@ -151,33 +156,134 @@ namespace Ryujinx.Audio.Renderer.Server
 
                     if (filter.Enable)
                     {
-                        Memory<byte> biquadStateRawMemory = SpanMemoryManager<byte>.Cast(state)[..(VoiceUpdateState.BiquadStateSize * Constants.VoiceBiquadFilterCount)];
-
+                        Memory<byte> biquadStateRawMemory = SpanMemoryManager<byte>.Cast(state)[..(Unsafe.SizeOf<BiquadFilterState>() * Constants.VoiceBiquadFilterCount)];
                         Memory<BiquadFilterState> stateMemory = SpanMemoryManager<BiquadFilterState>.Cast(biquadStateRawMemory);
 
-                        _commandBuffer.GenerateBiquadFilter(baseIndex,
-                                                            ref filter,
-                                                            stateMemory.Slice(i, 1),
-                                                            bufferOffset,
-                                                            bufferOffset,
-                                                            !voiceState.BiquadFilterNeedInitialization[i],
-                                                            nodeId);
+                        _commandBuffer.GenerateBiquadFilter(
+                            baseIndex,
+                            ref filter,
+                            stateMemory.Slice(i, 1),
+                            bufferOffset,
+                            bufferOffset,
+                            !voiceState.BiquadFilterNeedInitialization[i],
+                            nodeId);
                     }
                 }
             }
         }
 
-        private void GenerateVoiceMix(Span<float> mixVolumes, Span<float> previousMixVolumes, Memory<VoiceUpdateState> state, uint bufferOffset, uint bufferCount, uint bufferIndex, int nodeId)
+        private void GenerateVoiceMixWithSplitter(
+            SplitterDestination destination,
+            Memory<VoiceUpdateState> state,
+            uint bufferOffset,
+            uint bufferCount,
+            uint bufferIndex,
+            int nodeId)
+        {
+            ReadOnlySpan<float> mixVolumes = destination.MixBufferVolume;
+            ReadOnlySpan<float> previousMixVolumes = destination.PreviousMixBufferVolume;
+
+            ref BiquadFilterParameter bqf0 = ref destination.GetBiquadFilterParameter(0);
+            ref BiquadFilterParameter bqf1 = ref destination.GetBiquadFilterParameter(1);
+
+            Memory<BiquadFilterState> bqfState = _splitterContext.GetBiquadFilterState(destination);
+
+            bool isFirstMixBuffer = true;
+
+            for (int i = 0; i < bufferCount; i++)
+            {
+                float previousMixVolume = previousMixVolumes[i];
+                float mixVolume = mixVolumes[i];
+
+                if (mixVolume != 0.0f || previousMixVolume != 0.0f)
+                {
+                    if (bqf0.Enable && bqf1.Enable)
+                    {
+                        _commandBuffer.GenerateMultiTapBiquadFilterAndMix(
+                            previousMixVolume,
+                            mixVolume,
+                            bufferIndex,
+                            bufferOffset + (uint)i,
+                            i,
+                            state,
+                            ref bqf0,
+                            ref bqf1,
+                            bqfState[..1],
+                            bqfState.Slice(1, 1),
+                            bqfState.Slice(2, 1),
+                            bqfState.Slice(3, 1),
+                            !destination.IsBiquadFilterEnabledPrev(),
+                            !destination.IsBiquadFilterEnabledPrev(),
+                            true,
+                            isFirstMixBuffer,
+                            nodeId);
+
+                        destination.UpdateBiquadFilterEnabledPrev(0);
+                        destination.UpdateBiquadFilterEnabledPrev(1);
+                    }
+                    else if (bqf0.Enable)
+                    {
+                        _commandBuffer.GenerateBiquadFilterAndMix(
+                            previousMixVolume,
+                            mixVolume,
+                            bufferIndex,
+                            bufferOffset + (uint)i,
+                            i,
+                            state,
+                            ref bqf0,
+                            bqfState[..1],
+                            bqfState.Slice(1, 1),
+                            !destination.IsBiquadFilterEnabledPrev(),
+                            true,
+                            isFirstMixBuffer,
+                            nodeId);
+
+                        destination.UpdateBiquadFilterEnabledPrev(0);
+                    }
+                    else if (bqf1.Enable)
+                    {
+                        _commandBuffer.GenerateBiquadFilterAndMix(
+                            previousMixVolume,
+                            mixVolume,
+                            bufferIndex,
+                            bufferOffset + (uint)i,
+                            i,
+                            state,
+                            ref bqf1,
+                            bqfState[..1],
+                            bqfState.Slice(1, 1),
+                            !destination.IsBiquadFilterEnabledPrev(),
+                            true,
+                            isFirstMixBuffer,
+                            nodeId);
+
+                        destination.UpdateBiquadFilterEnabledPrev(1);
+                    }
+
+                    isFirstMixBuffer = false;
+                }
+            }
+        }
+
+        private void GenerateVoiceMix(
+            ReadOnlySpan<float> mixVolumes,
+            ReadOnlySpan<float> previousMixVolumes,
+            Memory<VoiceUpdateState> state,
+            uint bufferOffset,
+            uint bufferCount,
+            uint bufferIndex,
+            int nodeId)
         {
             if (bufferCount > Constants.VoiceChannelCountMax)
             {
-                _commandBuffer.GenerateMixRampGrouped(bufferCount,
-                                                      bufferIndex,
-                                                      bufferOffset,
-                                                      previousMixVolumes,
-                                                      mixVolumes,
-                                                      state,
-                                                      nodeId);
+                _commandBuffer.GenerateMixRampGrouped(
+                    bufferCount,
+                    bufferIndex,
+                    bufferOffset,
+                    previousMixVolumes,
+                    mixVolumes,
+                    state,
+                    nodeId);
             }
             else
             {
@@ -188,13 +294,14 @@ namespace Ryujinx.Audio.Renderer.Server
 
                     if (mixVolume != 0.0f || previousMixVolume != 0.0f)
                     {
-                        _commandBuffer.GenerateMixRamp(previousMixVolume,
-                                                       mixVolume,
-                                                       bufferIndex,
-                                                       bufferOffset + (uint)i,
-                                                       i,
-                                                       state,
-                                                       nodeId);
+                        _commandBuffer.GenerateMixRamp(
+                            previousMixVolume,
+                            mixVolume,
+                            bufferIndex,
+                            bufferOffset + (uint)i,
+                            i,
+                            state,
+                            nodeId);
                     }
                 }
             }
@@ -271,10 +378,11 @@ namespace Ryujinx.Audio.Renderer.Server
                         GeneratePerformance(ref performanceEntry, PerformanceCommand.Type.Start, nodeId);
                     }
 
-                    _commandBuffer.GenerateVolumeRamp(voiceState.PreviousVolume,
-                                                      voiceState.Volume,
-                                                      _rendererContext.MixBufferCount + (uint)channelIndex,
-                                                      nodeId);
+                    _commandBuffer.GenerateVolumeRamp(
+                        voiceState.PreviousVolume,
+                        voiceState.Volume,
+                        _rendererContext.MixBufferCount + (uint)channelIndex,
+                        nodeId);
 
                     if (performanceInitialized)
                     {
@@ -291,15 +399,13 @@ namespace Ryujinx.Audio.Renderer.Server
 
                             while (true)
                             {
-                                Span<SplitterDestination> destinationSpan = _splitterContext.GetDestination((int)voiceState.SplitterId, destinationId);
+                                SplitterDestination destination = _splitterContext.GetDestination((int)voiceState.SplitterId, destinationId);
 
-                                if (destinationSpan.IsEmpty)
+                                if (destination.IsNull)
                                 {
                                     break;
                                 }
 
-                                ref SplitterDestination destination = ref destinationSpan[0];
-
                                 destinationId += (int)channelsCount;
 
                                 if (destination.IsConfigured())
@@ -310,13 +416,27 @@ namespace Ryujinx.Audio.Renderer.Server
                                     {
                                         ref MixState mix = ref _mixContext.GetState(mixId);
 
-                                        GenerateVoiceMix(destination.MixBufferVolume,
-                                                         destination.PreviousMixBufferVolume,
-                                                         dspStateMemory,
-                                                         mix.BufferOffset,
-                                                         mix.BufferCount,
-                                                         _rendererContext.MixBufferCount + (uint)channelIndex,
-                                                         nodeId);
+                                        if (destination.IsBiquadFilterEnabled())
+                                        {
+                                            GenerateVoiceMixWithSplitter(
+                                                destination,
+                                                dspStateMemory,
+                                                mix.BufferOffset,
+                                                mix.BufferCount,
+                                                _rendererContext.MixBufferCount + (uint)channelIndex,
+                                                nodeId);
+                                        }
+                                        else
+                                        {
+                                            GenerateVoiceMix(
+                                                destination.MixBufferVolume,
+                                                destination.PreviousMixBufferVolume,
+                                                dspStateMemory,
+                                                mix.BufferOffset,
+                                                mix.BufferCount,
+                                                _rendererContext.MixBufferCount + (uint)channelIndex,
+                                                nodeId);
+                                        }
 
                                         destination.MarkAsNeedToUpdateInternalState();
                                     }
@@ -337,13 +457,14 @@ namespace Ryujinx.Audio.Renderer.Server
                             GeneratePerformance(ref performanceEntry, PerformanceCommand.Type.Start, nodeId);
                         }
 
-                        GenerateVoiceMix(channelResource.Mix.AsSpan(),
-                                         channelResource.PreviousMix.AsSpan(),
-                                         dspStateMemory,
-                                         mix.BufferOffset,
-                                         mix.BufferCount,
-                                         _rendererContext.MixBufferCount + (uint)channelIndex,
-                                         nodeId);
+                        GenerateVoiceMix(
+                            channelResource.Mix.AsSpan(),
+                            channelResource.PreviousMix.AsSpan(),
+                            dspStateMemory,
+                            mix.BufferOffset,
+                            mix.BufferCount,
+                            _rendererContext.MixBufferCount + (uint)channelIndex,
+                            nodeId);
 
                         if (performanceInitialized)
                         {
@@ -409,10 +530,11 @@ namespace Ryujinx.Audio.Renderer.Server
                 {
                     if (effect.Parameter.Volumes[i] != 0.0f)
                     {
-                        _commandBuffer.GenerateMix((uint)bufferOffset + effect.Parameter.Input[i],
-                                                   (uint)bufferOffset + effect.Parameter.Output[i],
-                                                   nodeId,
-                                                   effect.Parameter.Volumes[i]);
+                        _commandBuffer.GenerateMix(
+                            (uint)bufferOffset + effect.Parameter.Input[i],
+                            (uint)bufferOffset + effect.Parameter.Output[i],
+                            nodeId,
+                            effect.Parameter.Volumes[i]);
                     }
                 }
             }
@@ -447,17 +569,18 @@ namespace Ryujinx.Audio.Renderer.Server
                         updateCount = newUpdateCount;
                     }
 
-                    _commandBuffer.GenerateAuxEffect(bufferOffset,
-                                                     effect.Parameter.Input[i],
-                                                     effect.Parameter.Output[i],
-                                                     ref effect.State,
-                                                     effect.IsEnabled,
-                                                     effect.Parameter.BufferStorageSize,
-                                                     effect.State.SendBufferInfoBase,
-                                                     effect.State.ReturnBufferInfoBase,
-                                                     updateCount,
-                                                     writeOffset,
-                                                     nodeId);
+                    _commandBuffer.GenerateAuxEffect(
+                        bufferOffset,
+                        effect.Parameter.Input[i],
+                        effect.Parameter.Output[i],
+                        ref effect.State,
+                        effect.IsEnabled,
+                        effect.Parameter.BufferStorageSize,
+                        effect.State.SendBufferInfoBase,
+                        effect.State.ReturnBufferInfoBase,
+                        updateCount,
+                        writeOffset,
+                        nodeId);
 
                     writeOffset = newUpdateCount;
 
@@ -500,7 +623,7 @@ namespace Ryujinx.Audio.Renderer.Server
             if (effect.IsEnabled)
             {
                 bool needInitialization = effect.Parameter.Status == UsageState.Invalid ||
-                                         (effect.Parameter.Status == UsageState.New && !_rendererContext.BehaviourContext.IsBiquadFilterEffectStateClearBugFixed());
+                    (effect.Parameter.Status == UsageState.New && !_rendererContext.BehaviourContext.IsBiquadFilterEffectStateClearBugFixed());
 
                 BiquadFilterParameter parameter = new()
                 {
@@ -512,11 +635,14 @@ namespace Ryujinx.Audio.Renderer.Server
 
                 for (int i = 0; i < effect.Parameter.ChannelCount; i++)
                 {
-                    _commandBuffer.GenerateBiquadFilter((int)bufferOffset, ref parameter, effect.State.Slice(i, 1),
-                                                        effect.Parameter.Input[i],
-                                                        effect.Parameter.Output[i],
-                                                        needInitialization,
-                                                        nodeId);
+                    _commandBuffer.GenerateBiquadFilter(
+                        (int)bufferOffset,
+                        ref parameter,
+                        effect.State.Slice(i, 1),
+                        effect.Parameter.Input[i],
+                        effect.Parameter.Output[i],
+                        needInitialization,
+                        nodeId);
                 }
             }
             else
@@ -591,15 +717,16 @@ namespace Ryujinx.Audio.Renderer.Server
                         updateCount = newUpdateCount;
                     }
 
-                    _commandBuffer.GenerateCaptureEffect(bufferOffset,
-                                                         effect.Parameter.Input[i],
-                                                         effect.State.SendBufferInfo,
-                                                         effect.IsEnabled,
-                                                         effect.Parameter.BufferStorageSize,
-                                                         effect.State.SendBufferInfoBase,
-                                                         updateCount,
-                                                         writeOffset,
-                                                         nodeId);
+                    _commandBuffer.GenerateCaptureEffect(
+                        bufferOffset,
+                        effect.Parameter.Input[i],
+                        effect.State.SendBufferInfo,
+                        effect.IsEnabled,
+                        effect.Parameter.BufferStorageSize,
+                        effect.State.SendBufferInfoBase,
+                        updateCount,
+                        writeOffset,
+                        nodeId);
 
                     writeOffset = newUpdateCount;
 
@@ -608,15 +735,28 @@ namespace Ryujinx.Audio.Renderer.Server
             }
         }
 
-        private void GenerateCompressorEffect(uint bufferOffset, CompressorEffect effect, int nodeId)
+        private void GenerateCompressorEffect(uint bufferOffset, CompressorEffect effect, int nodeId, int effectId)
         {
             Debug.Assert(effect.Type == EffectType.Compressor);
 
-            _commandBuffer.GenerateCompressorEffect(bufferOffset,
-                                                    effect.Parameter,
-                                                    effect.State,
-                                                    effect.IsEnabled,
-                                                    nodeId);
+            Memory<EffectResultState> dspResultState;
+
+            if (effect.Parameter.StatisticsEnabled)
+            {
+                dspResultState = _effectContext.GetDspStateMemory(effectId);
+            }
+            else
+            {
+                dspResultState = Memory<EffectResultState>.Empty;
+            }
+
+            _commandBuffer.GenerateCompressorEffect(
+                bufferOffset,
+                effect.Parameter,
+                effect.State,
+                dspResultState,
+                effect.IsEnabled,
+                nodeId);
         }
 
         private void GenerateEffect(ref MixState mix, int effectId, BaseEffect effect)
@@ -629,8 +769,11 @@ namespace Ryujinx.Audio.Renderer.Server
 
             bool performanceInitialized = false;
 
-            if (_performanceManager != null && _performanceManager.GetNextEntry(out performanceEntry, effect.GetPerformanceDetailType(),
-                                                isFinalMix ? PerformanceEntryType.FinalMix : PerformanceEntryType.SubMix, nodeId))
+            if (_performanceManager != null && _performanceManager.GetNextEntry(
+                out performanceEntry,
+                effect.GetPerformanceDetailType(),
+                isFinalMix ? PerformanceEntryType.FinalMix : PerformanceEntryType.SubMix,
+                nodeId))
             {
                 performanceInitialized = true;
 
@@ -664,7 +807,7 @@ namespace Ryujinx.Audio.Renderer.Server
                     GenerateCaptureEffect(mix.BufferOffset, (CaptureBufferEffect)effect, nodeId);
                     break;
                 case EffectType.Compressor:
-                    GenerateCompressorEffect(mix.BufferOffset, (CompressorEffect)effect, nodeId);
+                    GenerateCompressorEffect(mix.BufferOffset, (CompressorEffect)effect, nodeId, effectId);
                     break;
                 default:
                     throw new NotImplementedException($"Unsupported effect type {effect.Type}");
@@ -706,6 +849,85 @@ namespace Ryujinx.Audio.Renderer.Server
             }
         }
 
+        private void GenerateMixWithSplitter(
+            uint inputBufferIndex,
+            uint outputBufferIndex,
+            float volume,
+            SplitterDestination destination,
+            ref bool isFirstMixBuffer,
+            int nodeId)
+        {
+            ref BiquadFilterParameter bqf0 = ref destination.GetBiquadFilterParameter(0);
+            ref BiquadFilterParameter bqf1 = ref destination.GetBiquadFilterParameter(1);
+
+            Memory<BiquadFilterState> bqfState = _splitterContext.GetBiquadFilterState(destination);
+
+            if (bqf0.Enable && bqf1.Enable)
+            {
+                _commandBuffer.GenerateMultiTapBiquadFilterAndMix(
+                    0f,
+                    volume,
+                    inputBufferIndex,
+                    outputBufferIndex,
+                    0,
+                    Memory<VoiceUpdateState>.Empty,
+                    ref bqf0,
+                    ref bqf1,
+                    bqfState[..1],
+                    bqfState.Slice(1, 1),
+                    bqfState.Slice(2, 1),
+                    bqfState.Slice(3, 1),
+                    !destination.IsBiquadFilterEnabledPrev(),
+                    !destination.IsBiquadFilterEnabledPrev(),
+                    false,
+                    isFirstMixBuffer,
+                    nodeId);
+
+                destination.UpdateBiquadFilterEnabledPrev(0);
+                destination.UpdateBiquadFilterEnabledPrev(1);
+            }
+            else if (bqf0.Enable)
+            {
+                _commandBuffer.GenerateBiquadFilterAndMix(
+                    0f,
+                    volume,
+                    inputBufferIndex,
+                    outputBufferIndex,
+                    0,
+                    Memory<VoiceUpdateState>.Empty,
+                    ref bqf0,
+                    bqfState[..1],
+                    bqfState.Slice(1, 1),
+                    !destination.IsBiquadFilterEnabledPrev(),
+                    false,
+                    isFirstMixBuffer,
+                    nodeId);
+
+                destination.UpdateBiquadFilterEnabledPrev(0);
+            }
+            else if (bqf1.Enable)
+            {
+                _commandBuffer.GenerateBiquadFilterAndMix(
+                    0f,
+                    volume,
+                    inputBufferIndex,
+                    outputBufferIndex,
+                    0,
+                    Memory<VoiceUpdateState>.Empty,
+                    ref bqf1,
+                    bqfState[..1],
+                    bqfState.Slice(1, 1),
+                    !destination.IsBiquadFilterEnabledPrev(),
+                    false,
+                    isFirstMixBuffer,
+                    nodeId);
+
+                destination.UpdateBiquadFilterEnabledPrev(1);
+            }
+
+            isFirstMixBuffer = false;
+        }
+
         private void GenerateMix(ref MixState mix)
         {
             if (mix.HasAnyDestination())
@@ -722,15 +944,13 @@ namespace Ryujinx.Audio.Renderer.Server
                         {
                             int destinationIndex = destinationId++;
 
-                            Span<SplitterDestination> destinationSpan = _splitterContext.GetDestination((int)mix.DestinationSplitterId, destinationIndex);
+                            SplitterDestination destination = _splitterContext.GetDestination((int)mix.DestinationSplitterId, destinationIndex);
 
-                            if (destinationSpan.IsEmpty)
+                            if (destination.IsNull)
                             {
                                 break;
                             }
 
-                            ref SplitterDestination destination = ref destinationSpan[0];
-
                             if (destination.IsConfigured())
                             {
                                 int mixId = destination.DestinationId;
@@ -741,16 +961,32 @@ namespace Ryujinx.Audio.Renderer.Server
 
                                     uint inputBufferIndex = mix.BufferOffset + ((uint)destinationIndex % mix.BufferCount);
 
+                                    bool isFirstMixBuffer = true;
+
                                     for (uint bufferDestinationIndex = 0; bufferDestinationIndex < destinationMix.BufferCount; bufferDestinationIndex++)
                                     {
                                         float volume = mix.Volume * destination.GetMixVolume((int)bufferDestinationIndex);
 
                                         if (volume != 0.0f)
                                         {
-                                            _commandBuffer.GenerateMix(inputBufferIndex,
-                                                                       destinationMix.BufferOffset + bufferDestinationIndex,
-                                                                       mix.NodeId,
-                                                                       volume);
+                                            if (destination.IsBiquadFilterEnabled())
+                                            {
+                                                GenerateMixWithSplitter(
+                                                    inputBufferIndex,
+                                                    destinationMix.BufferOffset + bufferDestinationIndex,
+                                                    volume,
+                                                    destination,
+                                                    ref isFirstMixBuffer,
+                                                    mix.NodeId);
+                                            }
+                                            else
+                                            {
+                                                _commandBuffer.GenerateMix(
+                                                    inputBufferIndex,
+                                                    destinationMix.BufferOffset + bufferDestinationIndex,
+                                                    mix.NodeId,
+                                                    volume);
+                                            }
                                         }
                                     }
                                 }
@@ -770,10 +1006,11 @@ namespace Ryujinx.Audio.Renderer.Server
 
                             if (volume != 0.0f)
                             {
-                                _commandBuffer.GenerateMix(mix.BufferOffset + bufferIndex,
-                                                           destinationMix.BufferOffset + bufferDestinationIndex,
-                                                           mix.NodeId,
-                                                           volume);
+                                _commandBuffer.GenerateMix(
+                                    mix.BufferOffset + bufferIndex,
+                                    destinationMix.BufferOffset + bufferDestinationIndex,
+                                    mix.NodeId,
+                                    volume);
                             }
                         }
                     }
@@ -783,11 +1020,12 @@ namespace Ryujinx.Audio.Renderer.Server
 
         private void GenerateSubMix(ref MixState subMix)
         {
-            _commandBuffer.GenerateDepopForMixBuffersCommand(_rendererContext.DepopBuffer,
-                                                             subMix.BufferOffset,
-                                                             subMix.BufferCount,
-                                                             subMix.NodeId,
-                                                             subMix.SampleRate);
+            _commandBuffer.GenerateDepopForMixBuffers(
+                _rendererContext.DepopBuffer,
+                subMix.BufferOffset,
+                subMix.BufferCount,
+                subMix.NodeId,
+                subMix.SampleRate);
 
             GenerateEffects(ref subMix);
 
@@ -847,11 +1085,12 @@ namespace Ryujinx.Audio.Renderer.Server
         {
             ref MixState finalMix = ref _mixContext.GetFinalState();
 
-            _commandBuffer.GenerateDepopForMixBuffersCommand(_rendererContext.DepopBuffer,
-                                                             finalMix.BufferOffset,
-                                                             finalMix.BufferCount,
-                                                             finalMix.NodeId,
-                                                             finalMix.SampleRate);
+            _commandBuffer.GenerateDepopForMixBuffers(
+                _rendererContext.DepopBuffer,
+                finalMix.BufferOffset,
+                finalMix.BufferCount,
+                finalMix.NodeId,
+                finalMix.SampleRate);
 
             GenerateEffects(ref finalMix);
 
@@ -882,9 +1121,10 @@ namespace Ryujinx.Audio.Renderer.Server
                         GeneratePerformance(ref performanceEntry, PerformanceCommand.Type.Start, nodeId);
                     }
 
-                    _commandBuffer.GenerateVolume(finalMix.Volume,
-                                                  finalMix.BufferOffset + bufferIndex,
-                                                  nodeId);
+                    _commandBuffer.GenerateVolume(
+                        finalMix.Volume,
+                        finalMix.BufferOffset + bufferIndex,
+                        nodeId);
 
                     if (performanceSubInitialized)
                     {
@@ -938,41 +1178,45 @@ namespace Ryujinx.Audio.Renderer.Server
 
             if (useCustomDownMixingCommand)
             {
-                _commandBuffer.GenerateDownMixSurroundToStereo(finalMix.BufferOffset,
-                                                               sink.Parameter.Input.AsSpan(),
-                                                               sink.Parameter.Input.AsSpan(),
-                                                               sink.DownMixCoefficients,
-                                                               Constants.InvalidNodeId);
+                _commandBuffer.GenerateDownMixSurroundToStereo(
+                    finalMix.BufferOffset,
+                    sink.Parameter.Input.AsSpan(),
+                    sink.Parameter.Input.AsSpan(),
+                    sink.DownMixCoefficients,
+                    Constants.InvalidNodeId);
             }
             // NOTE: We do the downmixing at the DSP level as it's easier that way.
             else if (_rendererContext.ChannelCount == 2 && sink.Parameter.InputCount == 6)
             {
-                _commandBuffer.GenerateDownMixSurroundToStereo(finalMix.BufferOffset,
-                                                               sink.Parameter.Input.AsSpan(),
-                                                               sink.Parameter.Input.AsSpan(),
-                                                               Constants.DefaultSurroundToStereoCoefficients,
-                                                               Constants.InvalidNodeId);
+                _commandBuffer.GenerateDownMixSurroundToStereo(
+                    finalMix.BufferOffset,
+                    sink.Parameter.Input.AsSpan(),
+                    sink.Parameter.Input.AsSpan(),
+                    Constants.DefaultSurroundToStereoCoefficients,
+                    Constants.InvalidNodeId);
             }
 
             CommandList commandList = _commandBuffer.CommandList;
 
             if (sink.UpsamplerState != null)
             {
-                _commandBuffer.GenerateUpsample(finalMix.BufferOffset,
-                                                sink.UpsamplerState,
-                                                sink.Parameter.InputCount,
-                                                sink.Parameter.Input.AsSpan(),
-                                                commandList.BufferCount,
-                                                commandList.SampleCount,
-                                                commandList.SampleRate,
-                                                Constants.InvalidNodeId);
+                _commandBuffer.GenerateUpsample(
+                    finalMix.BufferOffset,
+                    sink.UpsamplerState,
+                    sink.Parameter.InputCount,
+                    sink.Parameter.Input.AsSpan(),
+                    commandList.BufferCount,
+                    commandList.SampleCount,
+                    commandList.SampleRate,
+                    Constants.InvalidNodeId);
             }
 
-            _commandBuffer.GenerateDeviceSink(finalMix.BufferOffset,
-                                              sink,
-                                              _rendererContext.SessionId,
-                                              commandList.Buffers,
-                                              Constants.InvalidNodeId);
+            _commandBuffer.GenerateDeviceSink(
+                finalMix.BufferOffset,
+                sink,
+                _rendererContext.SessionId,
+                commandList.Buffers,
+                Constants.InvalidNodeId);
         }
 
         private void GenerateSink(BaseSink sink, ref MixState finalMix)

src/Ryujinx.Audio/Renderer/Server/CommandProcessingTimeEstimatorVersion1.cs

@@ -170,7 +170,7 @@ namespace Ryujinx.Audio.Renderer.Server
             return 0;
         }
 
-        public uint Estimate(GroupedBiquadFilterCommand command)
+        public uint Estimate(MultiTapBiquadFilterCommand command)
         {
             return 0;
         }
@@ -184,5 +184,15 @@ namespace Ryujinx.Audio.Renderer.Server
         {
             return 0;
         }
+
+        public uint Estimate(BiquadFilterAndMixCommand command)
+        {
+            return 0;
+        }
+
+        public uint Estimate(MultiTapBiquadFilterAndMixCommand command)
+        {
+            return 0;
+        }
     }
 }

src/Ryujinx.Audio/Renderer/Server/CommandProcessingTimeEstimatorVersion2.cs

@@ -462,7 +462,7 @@ namespace Ryujinx.Audio.Renderer.Server
             return 0;
         }
 
-        public uint Estimate(GroupedBiquadFilterCommand command)
+        public uint Estimate(MultiTapBiquadFilterCommand command)
         {
             return 0;
         }
@@ -476,5 +476,15 @@ namespace Ryujinx.Audio.Renderer.Server
         {
             return 0;
         }
+
+        public uint Estimate(BiquadFilterAndMixCommand command)
+        {
+            return 0;
+        }
+
+        public uint Estimate(MultiTapBiquadFilterAndMixCommand command)
+        {
+            return 0;
+        }
     }
 }

src/Ryujinx.Audio/Renderer/Server/CommandProcessingTimeEstimatorVersion3.cs

@@ -632,7 +632,7 @@ namespace Ryujinx.Audio.Renderer.Server
             };
         }
 
-        public virtual uint Estimate(GroupedBiquadFilterCommand command)
+        public virtual uint Estimate(MultiTapBiquadFilterCommand command)
         {
             return 0;
         }
@@ -646,5 +646,15 @@ namespace Ryujinx.Audio.Renderer.Server
         {
             return 0;
         }
+
+        public virtual uint Estimate(BiquadFilterAndMixCommand command)
+        {
+            return 0;
+        }
+
+        public virtual uint Estimate(MultiTapBiquadFilterAndMixCommand command)
+        {
+            return 0;
+        }
     }
 }

src/Ryujinx.Audio/Renderer/Server/CommandProcessingTimeEstimatorVersion4.cs

@@ -10,7 +10,7 @@ namespace Ryujinx.Audio.Renderer.Server
     {
         public CommandProcessingTimeEstimatorVersion4(uint sampleCount, uint bufferCount) : base(sampleCount, bufferCount) { }
 
-        public override uint Estimate(GroupedBiquadFilterCommand command)
+        public override uint Estimate(MultiTapBiquadFilterCommand command)
         {
             Debug.Assert(SampleCount == 160 || SampleCount == 240);
 

src/Ryujinx.Audio/Renderer/Server/CommandProcessingTimeEstimatorVersion5.cs

@@ -169,14 +169,28 @@ namespace Ryujinx.Audio.Renderer.Server
             {
                 if (command.Enabled)
                 {
-                    return command.Parameter.ChannelCount switch
+                    if (command.Parameter.StatisticsEnabled)
                     {
-                        1 => 34431,
-                        2 => 44253,
-                        4 => 63827,
-                        6 => 83361,
-                        _ => throw new NotImplementedException($"{command.Parameter.ChannelCount}"),
-                    };
+                        return command.Parameter.ChannelCount switch
+                        {
+                            1 => 22100,
+                            2 => 33211,
+                            4 => 41587,
+                            6 => 58819,
+                            _ => throw new NotImplementedException($"{command.Parameter.ChannelCount}"),
+                        };
+                    }
+                    else
+                    {
+                        return command.Parameter.ChannelCount switch
+                        {
+                            1 => 19052,
+                            2 => 29852,
+                            4 => 37904,
+                            6 => 55020,
+                            _ => throw new NotImplementedException($"{command.Parameter.ChannelCount}"),
+                        };
+                    }
                 }
 
                 return command.Parameter.ChannelCount switch
@@ -191,14 +205,28 @@ namespace Ryujinx.Audio.Renderer.Server
 
             if (command.Enabled)
             {
-                return command.Parameter.ChannelCount switch
+                if (command.Parameter.StatisticsEnabled)
                 {
-                    1 => 51095,
-                    2 => 65693,
-                    4 => 95383,
-                    6 => 124510,
-                    _ => throw new NotImplementedException($"{command.Parameter.ChannelCount}"),
-                };
+                    return command.Parameter.ChannelCount switch
+                    {
+                        1 => 32518,
+                        2 => 49102,
+                        4 => 61685,
+                        6 => 87250,
+                        _ => throw new NotImplementedException($"{command.Parameter.ChannelCount}"),
+                    };
+                }
+                else
+                {
+                    return command.Parameter.ChannelCount switch
+                    {
+                        1 => 27963,
+                        2 => 44016,
+                        4 => 56183,
+                        6 => 81862,
+                        _ => throw new NotImplementedException($"{command.Parameter.ChannelCount}"),
+                    };
+                }
             }
 
             return command.Parameter.ChannelCount switch
@@ -210,5 +238,53 @@ namespace Ryujinx.Audio.Renderer.Server
                 _ => throw new NotImplementedException($"{command.Parameter.ChannelCount}"),
             };
         }
+
+        public override uint Estimate(BiquadFilterAndMixCommand command)
+        {
+            Debug.Assert(SampleCount == 160 || SampleCount == 240);
+
+            if (command.HasVolumeRamp)
+            {
+                if (SampleCount == 160)
+                {
+                    return 5204;
+                }
+
+                return 6683;
+            }
+            else
+            {
+                if (SampleCount == 160)
+                {
+                    return 3427;
+                }
+
+                return 4752;
+            }
+        }
+
+        public override uint Estimate(MultiTapBiquadFilterAndMixCommand command)
+        {
+            Debug.Assert(SampleCount == 160 || SampleCount == 240);
+
+            if (command.HasVolumeRamp)
+            {
+                if (SampleCount == 160)
+                {
+                    return 7939;
+                }
+
+                return 10669;
+            }
+            else
+            {
+                if (SampleCount == 160)
+                {
+                    return 6256;
+                }
+
+                return 8683;
+            }
+        }
     }
 }

src/Ryujinx.Audio/Renderer/Server/Effect/AuxiliaryBufferEffect.cs

@@ -33,21 +33,21 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
             return WorkBuffers[index].GetReference(true);
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion1 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion1 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion2 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion2 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, ref T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
+        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, in T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
         {
-            Debug.Assert(IsTypeValid(ref parameter));
+            Debug.Assert(IsTypeValid(in parameter));
 
-            UpdateParameterBase(ref parameter);
+            UpdateParameterBase(in parameter);
 
             Parameter = MemoryMarshal.Cast<byte, AuxiliaryBufferParameter>(parameter.SpecificData)[0];
             IsEnabled = parameter.IsEnabled;

src/Ryujinx.Audio/Renderer/Server/Effect/BaseEffect.cs

@@ -81,7 +81,7 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
         /// </summary>
         /// <param name="parameter">The user parameter.</param>
         /// <returns>Returns true if the <see cref="EffectType"/> sent by the user matches the internal <see cref="EffectType"/>.</returns>
-        public bool IsTypeValid<T>(ref T parameter) where T : unmanaged, IEffectInParameter
+        public bool IsTypeValid<T>(in T parameter) where T : unmanaged, IEffectInParameter
         {
             return parameter.Type == TargetEffectType;
         }
@@ -98,7 +98,7 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
         /// Update the internal common parameters from a user parameter.
         /// </summary>
         /// <param name="parameter">The user parameter.</param>
-        protected void UpdateParameterBase<T>(ref T parameter) where T : unmanaged, IEffectInParameter
+        protected void UpdateParameterBase<T>(in T parameter) where T : unmanaged, IEffectInParameter
         {
             MixId = parameter.MixId;
             ProcessingOrder = parameter.ProcessingOrder;
@@ -139,7 +139,7 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
         /// <summary>
         /// Initialize the given <paramref name="state"/> result state.
         /// </summary>
-        /// <param name="state">The state to initalize</param>
+        /// <param name="state">The state to initialize</param>
         public virtual void InitializeResultState(ref EffectResultState state) { }
 
         /// <summary>
@@ -155,9 +155,9 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
         /// <param name="updateErrorInfo">The possible <see cref="ErrorInfo"/> that was generated.</param>
         /// <param name="parameter">The user parameter.</param>
         /// <param name="mapper">The mapper to use.</param>
-        public virtual void Update(out ErrorInfo updateErrorInfo, ref EffectInParameterVersion1 parameter, PoolMapper mapper)
+        public virtual void Update(out ErrorInfo updateErrorInfo, in EffectInParameterVersion1 parameter, PoolMapper mapper)
         {
-            Debug.Assert(IsTypeValid(ref parameter));
+            Debug.Assert(IsTypeValid(in parameter));
 
             updateErrorInfo = new ErrorInfo();
         }
@@ -168,9 +168,9 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
         /// <param name="updateErrorInfo">The possible <see cref="ErrorInfo"/> that was generated.</param>
         /// <param name="parameter">The user parameter.</param>
         /// <param name="mapper">The mapper to use.</param>
-        public virtual void Update(out ErrorInfo updateErrorInfo, ref EffectInParameterVersion2 parameter, PoolMapper mapper)
+        public virtual void Update(out ErrorInfo updateErrorInfo, in EffectInParameterVersion2 parameter, PoolMapper mapper)
         {
-            Debug.Assert(IsTypeValid(ref parameter));
+            Debug.Assert(IsTypeValid(in parameter));
 
             updateErrorInfo = new ErrorInfo();
         }

src/Ryujinx.Audio/Renderer/Server/Effect/BiquadFilterEffect.cs

@@ -35,21 +35,21 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
 
         public override EffectType TargetEffectType => EffectType.BiquadFilter;
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion1 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion1 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion2 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion2 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, ref T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
+        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, in T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
         {
-            Debug.Assert(IsTypeValid(ref parameter));
+            Debug.Assert(IsTypeValid(in parameter));
 
-            UpdateParameterBase(ref parameter);
+            UpdateParameterBase(in parameter);
 
             Parameter = MemoryMarshal.Cast<byte, BiquadFilterEffectParameter>(parameter.SpecificData)[0];
             IsEnabled = parameter.IsEnabled;

src/Ryujinx.Audio/Renderer/Server/Effect/BufferMixEffect.cs

@@ -19,21 +19,21 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
 
         public override EffectType TargetEffectType => EffectType.BufferMix;
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion1 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion1 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion2 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion2 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, ref T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
+        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, in T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
         {
-            Debug.Assert(IsTypeValid(ref parameter));
+            Debug.Assert(IsTypeValid(in parameter));
 
-            UpdateParameterBase(ref parameter);
+            UpdateParameterBase(in parameter);
 
             Parameter = MemoryMarshal.Cast<byte, BufferMixParameter>(parameter.SpecificData)[0];
             IsEnabled = parameter.IsEnabled;

src/Ryujinx.Audio/Renderer/Server/Effect/CaptureBufferEffect.cs

@@ -32,21 +32,21 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
             return WorkBuffers[index].GetReference(true);
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion1 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion1 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion2 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion2 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, ref T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
+        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, in T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
         {
-            Debug.Assert(IsTypeValid(ref parameter));
+            Debug.Assert(IsTypeValid(in parameter));
 
-            UpdateParameterBase(ref parameter);
+            UpdateParameterBase(in parameter);
 
             Parameter = MemoryMarshal.Cast<byte, AuxiliaryBufferParameter>(parameter.SpecificData)[0];
             IsEnabled = parameter.IsEnabled;

src/Ryujinx.Audio/Renderer/Server/Effect/CompressorEffect.cs

@@ -39,17 +39,17 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
             return GetSingleBuffer();
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion1 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion1 parameter, PoolMapper mapper)
         {
             // Nintendo doesn't do anything here but we still require updateErrorInfo to be initialised.
             updateErrorInfo = new BehaviourParameter.ErrorInfo();
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion2 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion2 parameter, PoolMapper mapper)
         {
-            Debug.Assert(IsTypeValid(ref parameter));
+            Debug.Assert(IsTypeValid(in parameter));
 
-            UpdateParameterBase(ref parameter);
+            UpdateParameterBase(in parameter);
 
             Parameter = MemoryMarshal.Cast<byte, CompressorParameter>(parameter.SpecificData)[0];
             IsEnabled = parameter.IsEnabled;
@@ -62,6 +62,19 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
             UpdateUsageStateForCommandGeneration();
 
             Parameter.Status = UsageState.Enabled;
+            Parameter.StatisticsReset = false;
+        }
+
+        public override void InitializeResultState(ref EffectResultState state)
+        {
+            ref CompressorStatistics statistics = ref MemoryMarshal.Cast<byte, CompressorStatistics>(state.SpecificData)[0];
+
+            statistics.Reset(Parameter.ChannelCount);
+        }
+
+        public override void UpdateResultState(ref EffectResultState destState, ref EffectResultState srcState)
+        {
+            destState = srcState;
         }
     }
 }

src/Ryujinx.Audio/Renderer/Server/Effect/DelayEffect.cs

@@ -37,19 +37,19 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
             return GetSingleBuffer();
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion1 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion1 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion2 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion2 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, ref T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
+        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, in T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
         {
-            Debug.Assert(IsTypeValid(ref parameter));
+            Debug.Assert(IsTypeValid(in parameter));
 
             ref DelayParameter delayParameter = ref MemoryMarshal.Cast<byte, DelayParameter>(parameter.SpecificData)[0];
 
@@ -57,7 +57,7 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
 
             if (delayParameter.IsChannelCountMaxValid())
             {
-                UpdateParameterBase(ref parameter);
+                UpdateParameterBase(in parameter);
 
                 UsageState oldParameterStatus = Parameter.Status;
 

src/Ryujinx.Audio/Renderer/Server/Effect/LimiterEffect.cs

@@ -39,25 +39,25 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
             return GetSingleBuffer();
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion1 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion1 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion2 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion2 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, ref T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
+        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, in T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
         {
-            Debug.Assert(IsTypeValid(ref parameter));
+            Debug.Assert(IsTypeValid(in parameter));
 
             ref LimiterParameter limiterParameter = ref MemoryMarshal.Cast<byte, LimiterParameter>(parameter.SpecificData)[0];
 
             updateErrorInfo = new BehaviourParameter.ErrorInfo();
 
-            UpdateParameterBase(ref parameter);
+            UpdateParameterBase(in parameter);
 
             Parameter = limiterParameter;
 

src/Ryujinx.Audio/Renderer/Server/Effect/Reverb3dEffect.cs

@@ -36,19 +36,19 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
             return GetSingleBuffer();
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion1 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion1 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion2 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion2 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, ref T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
+        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, in T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
         {
-            Debug.Assert(IsTypeValid(ref parameter));
+            Debug.Assert(IsTypeValid(in parameter));
 
             ref Reverb3dParameter reverbParameter = ref MemoryMarshal.Cast<byte, Reverb3dParameter>(parameter.SpecificData)[0];
 
@@ -56,7 +56,7 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
 
             if (reverbParameter.IsChannelCountMaxValid())
             {
-                UpdateParameterBase(ref parameter);
+                UpdateParameterBase(in parameter);
 
                 UsageState oldParameterStatus = Parameter.ParameterStatus;
 

src/Ryujinx.Audio/Renderer/Server/Effect/ReverbEffect.cs

@@ -39,19 +39,19 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
             return GetSingleBuffer();
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion1 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion1 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion2 parameter, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, in EffectInParameterVersion2 parameter, PoolMapper mapper)
         {
-            Update(out updateErrorInfo, ref parameter, mapper);
+            Update(out updateErrorInfo, in parameter, mapper);
         }
 
-        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, ref T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
+        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, in T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
         {
-            Debug.Assert(IsTypeValid(ref parameter));
+            Debug.Assert(IsTypeValid(in parameter));
 
             ref ReverbParameter reverbParameter = ref MemoryMarshal.Cast<byte, ReverbParameter>(parameter.SpecificData)[0];
 
@@ -59,7 +59,7 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
 
             if (reverbParameter.IsChannelCountMaxValid())
             {
-                UpdateParameterBase(ref parameter);
+                UpdateParameterBase(in parameter);
 
                 UsageState oldParameterStatus = Parameter.Status;
 

src/Ryujinx.Audio/Renderer/Server/ICommandProcessingTimeEstimator.cs

@@ -33,8 +33,10 @@ namespace Ryujinx.Audio.Renderer.Server
         uint Estimate(UpsampleCommand command);
         uint Estimate(LimiterCommandVersion1 command);
         uint Estimate(LimiterCommandVersion2 command);
-        uint Estimate(GroupedBiquadFilterCommand command);
+        uint Estimate(MultiTapBiquadFilterCommand command);
         uint Estimate(CaptureBufferCommand command);
         uint Estimate(CompressorCommand command);
+        uint Estimate(BiquadFilterAndMixCommand command);
+        uint Estimate(MultiTapBiquadFilterAndMixCommand command);
     }
 }

src/Ryujinx.Audio/Renderer/Server/MemoryPool/PoolMapper.cs

@@ -249,7 +249,7 @@ namespace Ryujinx.Audio.Renderer.Server.MemoryPool
         /// <param name="inParameter">Input user parameter.</param>
         /// <param name="outStatus">Output user parameter.</param>
         /// <returns>Returns the <see cref="UpdateResult"/> of the operations performed.</returns>
-        public UpdateResult Update(ref MemoryPoolState memoryPool, ref MemoryPoolInParameter inParameter, ref MemoryPoolOutStatus outStatus)
+        public UpdateResult Update(ref MemoryPoolState memoryPool, in MemoryPoolInParameter inParameter, ref MemoryPoolOutStatus outStatus)
         {
             MemoryPoolUserState inputState = inParameter.State;
 

src/Ryujinx.Audio/Renderer/Server/Mix/MixState.cs

@@ -195,7 +195,7 @@ namespace Ryujinx.Audio.Renderer.Server.Mix
         /// <param name="parameter">The input parameter of the mix.</param>
         /// <param name="splitterContext">The splitter context.</param>
         /// <returns>Return true, new connections were done on the adjacency matrix.</returns>
-        private bool UpdateConnection(EdgeMatrix edgeMatrix, ref MixParameter parameter, ref SplitterContext splitterContext)
+        private bool UpdateConnection(EdgeMatrix edgeMatrix, in MixParameter parameter, ref SplitterContext splitterContext)
         {
             bool hasNewConnections;
 
@@ -225,11 +225,11 @@ namespace Ryujinx.Audio.Renderer.Server.Mix
 
                     for (int i = 0; i < splitter.DestinationCount; i++)
                     {
-                        Span<SplitterDestination> destination = splitter.GetData(i);
+                        SplitterDestination destination = splitter.GetData(i);
 
-                        if (!destination.IsEmpty)
+                        if (!destination.IsNull)
                         {
-                            int destinationMixId = destination[0].DestinationId;
+                            int destinationMixId = destination.DestinationId;
 
                             if (destinationMixId != UnusedMixId)
                             {
@@ -259,7 +259,7 @@ namespace Ryujinx.Audio.Renderer.Server.Mix
         /// <param name="splitterContext">The splitter context.</param>
         /// <param name="behaviourContext">The behaviour context.</param>
         /// <returns>Return true if the mix was changed.</returns>
-        public bool Update(EdgeMatrix edgeMatrix, ref MixParameter parameter, EffectContext effectContext, SplitterContext splitterContext, BehaviourContext behaviourContext)
+        public bool Update(EdgeMatrix edgeMatrix, in MixParameter parameter, EffectContext effectContext, SplitterContext splitterContext, BehaviourContext behaviourContext)
         {
             bool isDirty;
 
@@ -273,7 +273,7 @@ namespace Ryujinx.Audio.Renderer.Server.Mix
 
             if (behaviourContext.IsSplitterSupported())
             {
-                isDirty = UpdateConnection(edgeMatrix, ref parameter, ref splitterContext);
+                isDirty = UpdateConnection(edgeMatrix, in parameter, ref splitterContext);
             }
             else
             {

src/Ryujinx.Audio/Renderer/Server/Performance/PerformanceManager.cs

@@ -18,16 +18,12 @@ namespace Ryujinx.Audio.Renderer.Server.Performance
 
             if (version == 2)
             {
-                return (ulong)PerformanceManagerGeneric<PerformanceFrameHeaderVersion2,
-                                                 PerformanceEntryVersion2,
-                                                 PerformanceDetailVersion2>.GetRequiredBufferSizeForPerformanceMetricsPerFrame(ref parameter);
+                return (ulong)PerformanceManagerGeneric<PerformanceFrameHeaderVersion2, PerformanceEntryVersion2, PerformanceDetailVersion2>.GetRequiredBufferSizeForPerformanceMetricsPerFrame(ref parameter);
             }
 
             if (version == 1)
             {
-                return (ulong)PerformanceManagerGeneric<PerformanceFrameHeaderVersion1,
-                    PerformanceEntryVersion1,
-                    PerformanceDetailVersion1>.GetRequiredBufferSizeForPerformanceMetricsPerFrame(ref parameter);
+                return (ulong)PerformanceManagerGeneric<PerformanceFrameHeaderVersion1, PerformanceEntryVersion1, PerformanceDetailVersion1>.GetRequiredBufferSizeForPerformanceMetricsPerFrame(ref parameter);
             }
 
             throw new NotImplementedException($"Unknown Performance metrics data format version {version}");

src/Ryujinx.Audio/Renderer/Server/Performance/PerformanceManagerGeneric.cs

@@ -234,7 +234,7 @@ namespace Ryujinx.Audio.Renderer.Server.Performance
         {
             performanceEntry = null;
 
-            if (_entryDetailIndex > MaxFrameDetailCount)
+            if (_entryDetailIndex >= MaxFrameDetailCount)
             {
                 return false;
             }
@@ -245,7 +245,7 @@ namespace Ryujinx.Audio.Renderer.Server.Performance
                 EntryCountOffset = (uint)CurrentHeader.GetEntryCountOffset(),
             };
 
-            uint baseEntryOffset = (uint)(Unsafe.SizeOf<THeader>() + GetEntriesSize() + Unsafe.SizeOf<IPerformanceDetailEntry>() * _entryDetailIndex);
+            uint baseEntryOffset = (uint)(Unsafe.SizeOf<THeader>() + GetEntriesSize() + Unsafe.SizeOf<TEntryDetail>() * _entryDetailIndex);
 
             ref TEntryDetail entryDetail = ref EntriesDetail[_entryDetailIndex];
 

src/Ryujinx.Audio/Renderer/Server/Sink/BaseSink.cs

@@ -59,7 +59,7 @@ namespace Ryujinx.Audio.Renderer.Server.Sink
         /// </summary>
         /// <param name="parameter">The user parameter.</param>
         /// <returns>Return true, if the <see cref="SinkType"/> sent by the user match the internal <see cref="SinkType"/>.</returns>
-        public bool IsTypeValid(ref SinkInParameter parameter)
+        public bool IsTypeValid(in SinkInParameter parameter)
         {
             return parameter.Type == TargetSinkType;
         }
@@ -76,7 +76,7 @@ namespace Ryujinx.Audio.Renderer.Server.Sink
         /// Update the internal common parameters from user parameter.
         /// </summary>
         /// <param name="parameter">The user parameter.</param>
-        protected void UpdateStandardParameter(ref SinkInParameter parameter)
+        protected void UpdateStandardParameter(in SinkInParameter parameter)
         {
             if (IsUsed != parameter.IsUsed)
             {
@@ -92,9 +92,9 @@ namespace Ryujinx.Audio.Renderer.Server.Sink
         /// <param name="parameter">The user parameter.</param>
         /// <param name="outStatus">The user output status.</param>
         /// <param name="mapper">The mapper to use.</param>
-        public virtual void Update(out ErrorInfo errorInfo, ref SinkInParameter parameter, ref SinkOutStatus outStatus, PoolMapper mapper)
+        public virtual void Update(out ErrorInfo errorInfo, in SinkInParameter parameter, ref SinkOutStatus outStatus, PoolMapper mapper)
         {
-            Debug.Assert(IsTypeValid(ref parameter));
+            Debug.Assert(IsTypeValid(in parameter));
 
             errorInfo = new ErrorInfo();
         }

src/Ryujinx.Audio/Renderer/Server/Sink/CircularBufferSink.cs

@@ -44,18 +44,18 @@ namespace Ryujinx.Audio.Renderer.Server.Sink
 
         public override SinkType TargetSinkType => SinkType.CircularBuffer;
 
-        public override void Update(out BehaviourParameter.ErrorInfo errorInfo, ref SinkInParameter parameter, ref SinkOutStatus outStatus, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo errorInfo, in SinkInParameter parameter, ref SinkOutStatus outStatus, PoolMapper mapper)
         {
             errorInfo = new BehaviourParameter.ErrorInfo();
             outStatus = new SinkOutStatus();
 
-            Debug.Assert(IsTypeValid(ref parameter));
+            Debug.Assert(IsTypeValid(in parameter));
 
             ref CircularBufferParameter inputDeviceParameter = ref MemoryMarshal.Cast<byte, CircularBufferParameter>(parameter.SpecificData)[0];
 
             if (parameter.IsUsed != IsUsed || ShouldSkip)
             {
-                UpdateStandardParameter(ref parameter);
+                UpdateStandardParameter(in parameter);
 
                 if (parameter.IsUsed)
                 {

src/Ryujinx.Audio/Renderer/Server/Sink/DeviceSink.cs

@@ -49,15 +49,15 @@ namespace Ryujinx.Audio.Renderer.Server.Sink
 
         public override SinkType TargetSinkType => SinkType.Device;
 
-        public override void Update(out BehaviourParameter.ErrorInfo errorInfo, ref SinkInParameter parameter, ref SinkOutStatus outStatus, PoolMapper mapper)
+        public override void Update(out BehaviourParameter.ErrorInfo errorInfo, in SinkInParameter parameter, ref SinkOutStatus outStatus, PoolMapper mapper)
         {
-            Debug.Assert(IsTypeValid(ref parameter));
+            Debug.Assert(IsTypeValid(in parameter));
 
             ref DeviceParameter inputDeviceParameter = ref MemoryMarshal.Cast<byte, DeviceParameter>(parameter.SpecificData)[0];
 
             if (parameter.IsUsed != IsUsed)
             {
-                UpdateStandardParameter(ref parameter);
+                UpdateStandardParameter(in parameter);
                 Parameter = inputDeviceParameter;
             }
             else

src/Ryujinx.Audio/Renderer/Server/Splitter/SplitterContext.cs

@@ -1,11 +1,13 @@
 using Ryujinx.Audio.Renderer.Common;
+using Ryujinx.Audio.Renderer.Dsp.State;
 using Ryujinx.Audio.Renderer.Parameter;
 using Ryujinx.Audio.Renderer.Utils;
 using Ryujinx.Common;
+using Ryujinx.Common.Extensions;
 using System;
+using System.Buffers;
 using System.Diagnostics;
 using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
 
 namespace Ryujinx.Audio.Renderer.Server.Splitter
 {
@@ -14,33 +16,63 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
     /// </summary>
     public class SplitterContext
     {
+        /// <summary>
+        /// Amount of biquad filter states per splitter destination.
+        /// </summary>
+        public const int BqfStatesPerDestination = 4;
+
         /// <summary>
         /// Storage for <see cref="SplitterState"/>.
         /// </summary>
         private Memory<SplitterState> _splitters;
 
         /// <summary>
-        /// Storage for <see cref="SplitterDestination"/>.
+        /// Storage for <see cref="SplitterDestinationVersion1"/>.
         /// </summary>
-        private Memory<SplitterDestination> _splitterDestinations;
+        private Memory<SplitterDestinationVersion1> _splitterDestinationsV1;
 
         /// <summary>
-        /// If set to true, trust the user destination count in <see cref="SplitterState.Update(SplitterContext, ref SplitterInParameter, ReadOnlySpan{byte})"/>.
+        /// Storage for <see cref="SplitterDestinationVersion2"/>.
+        /// </summary>
+        private Memory<SplitterDestinationVersion2> _splitterDestinationsV2;
+
+        /// <summary>
+        /// Splitter biquad filtering states.
+        /// </summary>
+        private Memory<BiquadFilterState> _splitterBqfStates;
+
+        /// <summary>
+        /// Version of the splitter context that is being used, currently can be 1 or 2.
+        /// </summary>
+        public int Version { get; private set; }
+
+        /// <summary>
+        /// If set to true, trust the user destination count in <see cref="SplitterState.Update(SplitterContext, in SplitterInParameter, ref SequenceReader{byte})"/>.
         /// </summary>
         public bool IsBugFixed { get; private set; }
 
+        /// <summary>
+        /// If set to true, the previous mix volume is explicitly resetted using the input parameter, instead of implicitly on first use.
+        /// </summary>
+        public bool IsSplitterPrevVolumeResetSupported { get; private set; }
+
         /// <summary>
         /// Initialize <see cref="SplitterContext"/>.
         /// </summary>
         /// <param name="behaviourContext">The behaviour context.</param>
         /// <param name="parameter">The audio renderer configuration.</param>
         /// <param name="workBufferAllocator">The <see cref="WorkBufferAllocator"/>.</param>
+        /// <param name="splitterBqfStates">Memory to store the biquad filtering state for splitters during processing.</param>
         /// <returns>Return true if the initialization was successful.</returns>
-        public bool Initialize(ref BehaviourContext behaviourContext, ref AudioRendererConfiguration parameter, WorkBufferAllocator workBufferAllocator)
+        public bool Initialize(
+            ref BehaviourContext behaviourContext,
+            ref AudioRendererConfiguration parameter,
+            WorkBufferAllocator workBufferAllocator,
+            Memory<BiquadFilterState> splitterBqfStates)
         {
             if (!behaviourContext.IsSplitterSupported() || parameter.SplitterCount <= 0 || parameter.SplitterDestinationCount <= 0)
             {
-                Setup(Memory<SplitterState>.Empty, Memory<SplitterDestination>.Empty, false);
+                Setup(Memory<SplitterState>.Empty, Memory<SplitterDestinationVersion1>.Empty, Memory<SplitterDestinationVersion2>.Empty, false);
 
                 return true;
             }
@@ -59,23 +91,64 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
                 splitter = new SplitterState(splitterId++);
             }
 
-            Memory<SplitterDestination> splitterDestinations = workBufferAllocator.Allocate<SplitterDestination>(parameter.SplitterDestinationCount,
-                SplitterDestination.Alignment);
+            Memory<SplitterDestinationVersion1> splitterDestinationsV1 = Memory<SplitterDestinationVersion1>.Empty;
+            Memory<SplitterDestinationVersion2> splitterDestinationsV2 = Memory<SplitterDestinationVersion2>.Empty;
 
-            if (splitterDestinations.IsEmpty)
+            if (!behaviourContext.IsBiquadFilterParameterForSplitterEnabled())
             {
-                return false;
+                Version = 1;
+
+                splitterDestinationsV1 = workBufferAllocator.Allocate<SplitterDestinationVersion1>(parameter.SplitterDestinationCount,
+                    SplitterDestinationVersion1.Alignment);
+
+                if (splitterDestinationsV1.IsEmpty)
+                {
+                    return false;
+                }
+
+                int splitterDestinationId = 0;
+                foreach (ref SplitterDestinationVersion1 data in splitterDestinationsV1.Span)
+                {
+                    data = new SplitterDestinationVersion1(splitterDestinationId++);
+                }
+            }
+            else
+            {
+                Version = 2;
+
+                splitterDestinationsV2 = workBufferAllocator.Allocate<SplitterDestinationVersion2>(parameter.SplitterDestinationCount,
+                    SplitterDestinationVersion2.Alignment);
+
+                if (splitterDestinationsV2.IsEmpty)
+                {
+                    return false;
+                }
+
+                int splitterDestinationId = 0;
+                foreach (ref SplitterDestinationVersion2 data in splitterDestinationsV2.Span)
+                {
+                    data = new SplitterDestinationVersion2(splitterDestinationId++);
+                }
+
+                if (parameter.SplitterDestinationCount > 0)
+                {
+                    // Official code stores it in the SplitterDestinationVersion2 struct,
+                    // but we don't to avoid using unsafe code.
+
+                    splitterBqfStates.Span.Clear();
+                    _splitterBqfStates = splitterBqfStates;
+                }
+                else
+                {
+                    _splitterBqfStates = Memory<BiquadFilterState>.Empty;
+                }
             }
 
-            int splitterDestinationId = 0;
-            foreach (ref SplitterDestination data in splitterDestinations.Span)
-            {
-                data = new SplitterDestination(splitterDestinationId++);
-            }
+            IsSplitterPrevVolumeResetSupported = behaviourContext.IsSplitterPrevVolumeResetSupported();
 
             SplitterState.InitializeSplitters(splitters.Span);
 
-            Setup(splitters, splitterDestinations, behaviourContext.IsSplitterBugFixed());
+            Setup(splitters, splitterDestinationsV1, splitterDestinationsV2, behaviourContext.IsSplitterBugFixed());
 
             return true;
         }
@@ -92,7 +165,15 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
             if (behaviourContext.IsSplitterSupported())
             {
                 size = WorkBufferAllocator.GetTargetSize<SplitterState>(size, parameter.SplitterCount, SplitterState.Alignment);
-                size = WorkBufferAllocator.GetTargetSize<SplitterDestination>(size, parameter.SplitterDestinationCount, SplitterDestination.Alignment);
+
+                if (behaviourContext.IsBiquadFilterParameterForSplitterEnabled())
+                {
+                    size = WorkBufferAllocator.GetTargetSize<SplitterDestinationVersion2>(size, parameter.SplitterDestinationCount, SplitterDestinationVersion2.Alignment);
+                }
+                else
+                {
+                    size = WorkBufferAllocator.GetTargetSize<SplitterDestinationVersion1>(size, parameter.SplitterDestinationCount, SplitterDestinationVersion1.Alignment);
+                }
 
                 if (behaviourContext.IsSplitterBugFixed())
                 {
@@ -109,12 +190,18 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
         /// Setup the <see cref="SplitterContext"/> instance.
         /// </summary>
         /// <param name="splitters">The <see cref="SplitterState"/> storage.</param>
-        /// <param name="splitterDestinations">The <see cref="SplitterDestination"/> storage.</param>
-        /// <param name="isBugFixed">If set to true, trust the user destination count in <see cref="SplitterState.Update(SplitterContext, ref SplitterInParameter, ReadOnlySpan{byte})"/>.</param>
-        private void Setup(Memory<SplitterState> splitters, Memory<SplitterDestination> splitterDestinations, bool isBugFixed)
+        /// <param name="splitterDestinationsV1">The <see cref="SplitterDestinationVersion1"/> storage.</param>
+        /// <param name="splitterDestinationsV2">The <see cref="SplitterDestinationVersion2"/> storage.</param>
+        /// <param name="isBugFixed">If set to true, trust the user destination count in <see cref="SplitterState.Update(SplitterContext, in SplitterInParameter, ref SequenceReader{byte})"/>.</param>
+        private void Setup(
+            Memory<SplitterState> splitters,
+            Memory<SplitterDestinationVersion1> splitterDestinationsV1,
+            Memory<SplitterDestinationVersion2> splitterDestinationsV2,
+            bool isBugFixed)
         {
             _splitters = splitters;
-            _splitterDestinations = splitterDestinations;
+            _splitterDestinationsV1 = splitterDestinationsV1;
+            _splitterDestinationsV2 = splitterDestinationsV2;
             IsBugFixed = isBugFixed;
         }
 
@@ -140,7 +227,9 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
                 return 0;
             }
 
-            return _splitterDestinations.Length / _splitters.Length;
+            int length = _splitterDestinationsV2.IsEmpty ? _splitterDestinationsV1.Length : _splitterDestinationsV2.Length;
+
+            return length / _splitters.Length;
         }
 
         /// <summary>
@@ -148,11 +237,11 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
         /// </summary>
         /// <param name="inputHeader">The splitter header.</param>
         /// <param name="input">The raw data after the splitter header.</param>
-        private void UpdateState(scoped ref SplitterInParameterHeader inputHeader, ref ReadOnlySpan<byte> input)
+        private void UpdateState(in SplitterInParameterHeader inputHeader, ref SequenceReader<byte> input)
         {
             for (int i = 0; i < inputHeader.SplitterCount; i++)
             {
-                SplitterInParameter parameter = MemoryMarshal.Read<SplitterInParameter>(input);
+                ref readonly SplitterInParameter parameter = ref input.GetRefOrRefToCopy<SplitterInParameter>(out _);
 
                 Debug.Assert(parameter.IsMagicValid());
 
@@ -162,37 +251,78 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
                     {
                         ref SplitterState splitter = ref GetState(parameter.Id);
 
-                        splitter.Update(this, ref parameter, input[Unsafe.SizeOf<SplitterInParameter>()..]);
+                        splitter.Update(this, in parameter, ref input);
                     }
 
-                    input = input[(0x1C + parameter.DestinationCount * 4)..];
+                    // NOTE: there are 12 bytes of unused/unknown data after the destination IDs array.
+                    input.Advance(0xC);
+                }
+                else
+                {
+                    input.Rewind(Unsafe.SizeOf<SplitterInParameter>());
+                    break;
                 }
             }
         }
 
         /// <summary>
-        /// Update one or multiple <see cref="SplitterDestination"/> from user parameters.
+        /// Update one splitter destination data from user parameters.
+        /// </summary>
+        /// <param name="input">The raw data after the splitter header.</param>
+        /// <returns>True if the update was successful, false otherwise</returns>
+        private bool UpdateData<T>(ref SequenceReader<byte> input) where T : unmanaged, ISplitterDestinationInParameter
+        {
+            ref readonly T parameter = ref input.GetRefOrRefToCopy<T>(out _);
+
+            Debug.Assert(parameter.IsMagicValid());
+
+            if (parameter.IsMagicValid())
+            {
+                int length = _splitterDestinationsV2.IsEmpty ? _splitterDestinationsV1.Length : _splitterDestinationsV2.Length;
+
+                if (parameter.Id >= 0 && parameter.Id < length)
+                {
+                    SplitterDestination destination = GetDestination(parameter.Id);
+
+                    destination.Update(parameter, IsSplitterPrevVolumeResetSupported);
+                }
+
+                return true;
+            }
+            else
+            {
+                input.Rewind(Unsafe.SizeOf<T>());
+
+                return false;
+            }
+        }
+
+        /// <summary>
+        /// Update one or multiple splitter destination data from user parameters.
         /// </summary>
         /// <param name="inputHeader">The splitter header.</param>
         /// <param name="input">The raw data after the splitter header.</param>
-        private void UpdateData(scoped ref SplitterInParameterHeader inputHeader, ref ReadOnlySpan<byte> input)
+        private void UpdateData(in SplitterInParameterHeader inputHeader, ref SequenceReader<byte> input)
         {
             for (int i = 0; i < inputHeader.SplitterDestinationCount; i++)
             {
-                SplitterDestinationInParameter parameter = MemoryMarshal.Read<SplitterDestinationInParameter>(input);
-
-                Debug.Assert(parameter.IsMagicValid());
-
-                if (parameter.IsMagicValid())
+                if (Version == 1)
                 {
-                    if (parameter.Id >= 0 && parameter.Id < _splitterDestinations.Length)
+                    if (!UpdateData<SplitterDestinationInParameterVersion1>(ref input))
                     {
-                        ref SplitterDestination destination = ref GetDestination(parameter.Id);
-
-                        destination.Update(parameter);
+                        break;
                     }
-
-                    input = input[Unsafe.SizeOf<SplitterDestinationInParameter>()..];
+                }
+                else if (Version == 2)
+                {
+                    if (!UpdateData<SplitterDestinationInParameterVersion2>(ref input))
+                    {
+                        break;
+                    }
+                }
+                else
+                {
+                    Debug.Fail($"Invalid splitter context version {Version}.");
                 }
             }
         }
@@ -201,36 +331,33 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
         /// Update splitter from user parameters.
         /// </summary>
         /// <param name="input">The input raw user data.</param>
-        /// <param name="consumedSize">The total consumed size.</param>
         /// <returns>Return true if the update was successful.</returns>
-        public bool Update(ReadOnlySpan<byte> input, out int consumedSize)
+        public bool Update(ref SequenceReader<byte> input)
         {
-            if (_splitterDestinations.IsEmpty || _splitters.IsEmpty)
+            if (!UsingSplitter())
             {
-                consumedSize = 0;
-
                 return true;
             }
 
-            int originalSize = input.Length;
-
-            SplitterInParameterHeader header = SpanIOHelper.Read<SplitterInParameterHeader>(ref input);
+            ref readonly SplitterInParameterHeader header = ref input.GetRefOrRefToCopy<SplitterInParameterHeader>(out _);
 
             if (header.IsMagicValid())
             {
                 ClearAllNewConnectionFlag();
 
-                UpdateState(ref header, ref input);
-                UpdateData(ref header, ref input);
+                UpdateState(in header, ref input);
+                UpdateData(in header, ref input);
 
-                consumedSize = BitUtils.AlignUp(originalSize - input.Length, 0x10);
+                input.SetConsumed(BitUtils.AlignUp(input.Consumed, 0x10));
 
                 return true;
             }
+            else
+            {
+                input.Rewind(Unsafe.SizeOf<SplitterInParameterHeader>());
 
-            consumedSize = 0;
-
-            return false;
+                return false;
+            }
         }
 
         /// <summary>
@@ -244,45 +371,52 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
         }
 
         /// <summary>
-        /// Get a reference to a <see cref="SplitterDestination"/> at the given <paramref name="id"/>.
+        /// Get a reference to the splitter destination data at the given <paramref name="id"/>.
         /// </summary>
         /// <param name="id">The index to use.</param>
-        /// <returns>A reference to a <see cref="SplitterDestination"/> at the given <paramref name="id"/>.</returns>
-        public ref SplitterDestination GetDestination(int id)
+        /// <returns>A reference to the splitter destination data at the given <paramref name="id"/>.</returns>
+        public SplitterDestination GetDestination(int id)
         {
-            return ref SpanIOHelper.GetFromMemory(_splitterDestinations, id, (uint)_splitterDestinations.Length);
+            if (_splitterDestinationsV2.IsEmpty)
+            {
+                return new SplitterDestination(ref SpanIOHelper.GetFromMemory(_splitterDestinationsV1, id, (uint)_splitterDestinationsV1.Length));
+            }
+            else
+            {
+                return new SplitterDestination(ref SpanIOHelper.GetFromMemory(_splitterDestinationsV2, id, (uint)_splitterDestinationsV2.Length));
+            }
         }
 
         /// <summary>
-        /// Get a <see cref="Memory{SplitterDestination}"/> at the given <paramref name="id"/>.
-        /// </summary>
-        /// <param name="id">The index to use.</param>
-        /// <returns>A <see cref="Memory{SplitterDestination}"/> at the given <paramref name="id"/>.</returns>
-        public Memory<SplitterDestination> GetDestinationMemory(int id)
-        {
-            return SpanIOHelper.GetMemory(_splitterDestinations, id, (uint)_splitterDestinations.Length);
-        }
-
-        /// <summary>
-        /// Get a <see cref="Span{SplitterDestination}"/> in the <see cref="SplitterState"/> at <paramref name="id"/> and pass <paramref name="destinationId"/> to <see cref="SplitterState.GetData(int)"/>.
+        /// Get a <see cref="SplitterDestination"/> in the <see cref="SplitterState"/> at <paramref name="id"/> and pass <paramref name="destinationId"/> to <see cref="SplitterState.GetData(int)"/>.
         /// </summary>
         /// <param name="id">The index to use to get the <see cref="SplitterState"/>.</param>
         /// <param name="destinationId">The index of the <see cref="SplitterDestination"/>.</param>
-        /// <returns>A <see cref="Span{SplitterDestination}"/>.</returns>
-        public Span<SplitterDestination> GetDestination(int id, int destinationId)
+        /// <returns>A <see cref="SplitterDestination"/>.</returns>
+        public SplitterDestination GetDestination(int id, int destinationId)
         {
             ref SplitterState splitter = ref GetState(id);
 
             return splitter.GetData(destinationId);
         }
 
+        /// <summary>
+        /// Gets the biquad filter state for a given splitter destination.
+        /// </summary>
+        /// <param name="destination">The splitter destination.</param>
+        /// <returns>Biquad filter state for the specified destination.</returns>
+        public Memory<BiquadFilterState> GetBiquadFilterState(SplitterDestination destination)
+        {
+            return _splitterBqfStates.Slice(destination.Id * BqfStatesPerDestination, BqfStatesPerDestination);
+        }
+
         /// <summary>
         /// Return true if the audio renderer has any splitters.
         /// </summary>
         /// <returns>True if the audio renderer has any splitters.</returns>
         public bool UsingSplitter()
         {
-            return !_splitters.IsEmpty && !_splitterDestinations.IsEmpty;
+            return !_splitters.IsEmpty && (!_splitterDestinationsV1.IsEmpty || !_splitterDestinationsV2.IsEmpty);
         }
 
         /// <summary>

src/Ryujinx.Audio/Renderer/Server/Splitter/SplitterDestination.cs

@@ -1,115 +1,199 @@
 using Ryujinx.Audio.Renderer.Parameter;
-using Ryujinx.Common.Utilities;
 using System;
 using System.Diagnostics;
-using System.Runtime.InteropServices;
+using System.Runtime.CompilerServices;
 
 namespace Ryujinx.Audio.Renderer.Server.Splitter
 {
     /// <summary>
     /// Server state for a splitter destination.
     /// </summary>
-    [StructLayout(LayoutKind.Sequential, Size = 0xE0, Pack = Alignment)]
-    public struct SplitterDestination
+    public ref struct SplitterDestination
     {
-        public const int Alignment = 0x10;
+        private ref SplitterDestinationVersion1 _v1;
+        private ref SplitterDestinationVersion2 _v2;
 
         /// <summary>
-        /// The unique id of this <see cref="SplitterDestination"/>.
+        /// Checks if the splitter destination data reference is null.
         /// </summary>
-        public int Id;
+        public bool IsNull => Unsafe.IsNullRef(ref _v1) && Unsafe.IsNullRef(ref _v2);
 
         /// <summary>
-        /// The mix to output the result of the splitter.
+        /// The splitter unique id.
         /// </summary>
-        public int DestinationId;
-
-        /// <summary>
-        /// Mix buffer volumes storage.
-        /// </summary>
-        private MixArray _mix;
-        private MixArray _previousMix;
-
-        /// <summary>
-        /// Pointer to the next linked element.
-        /// </summary>
-        private unsafe SplitterDestination* _next;
-
-        /// <summary>
-        /// Set to true if in use.
-        /// </summary>
-        [MarshalAs(UnmanagedType.I1)]
-        public bool IsUsed;
-
-        /// <summary>
-        /// Set to true if the internal state need to be updated.
-        /// </summary>
-        [MarshalAs(UnmanagedType.I1)]
-        public bool NeedToUpdateInternalState;
-
-        [StructLayout(LayoutKind.Sequential, Size = 4 * Constants.MixBufferCountMax, Pack = 1)]
-        private struct MixArray { }
-
-        /// <summary>
-        /// Mix buffer volumes.
-        /// </summary>
-        /// <remarks>Used when a splitter id is specified in the mix.</remarks>
-        public Span<float> MixBufferVolume => SpanHelpers.AsSpan<MixArray, float>(ref _mix);
-
-        /// <summary>
-        /// Previous mix buffer volumes.
-        /// </summary>
-        /// <remarks>Used when a splitter id is specified in the mix.</remarks>
-        public Span<float> PreviousMixBufferVolume => SpanHelpers.AsSpan<MixArray, float>(ref _previousMix);
-
-        /// <summary>
-        /// Get the  <see cref="Span{SplitterDestination}"/> of the next element or <see cref="Span{SplitterDestination}.Empty"/> if not present.
-        /// </summary>
-        public readonly Span<SplitterDestination> Next
+        public int Id
         {
             get
             {
-                unsafe
+                if (Unsafe.IsNullRef(ref _v2))
                 {
-                    return _next != null ? new Span<SplitterDestination>(_next, 1) : Span<SplitterDestination>.Empty;
+                    if (Unsafe.IsNullRef(ref _v1))
+                    {
+                        return 0;
+                    }
+                    else
+                    {
+                        return _v1.Id;
+                    }
+                }
+                else
+                {
+                    return _v2.Id;
                 }
             }
         }
 
         /// <summary>
-        /// Create a new <see cref="SplitterDestination"/>.
+        /// The mix to output the result of the splitter.
         /// </summary>
-        /// <param name="id">The unique id of this <see cref="SplitterDestination"/>.</param>
-        public SplitterDestination(int id) : this()
+        public int DestinationId
         {
-            Id = id;
-            DestinationId = Constants.UnusedMixId;
-
-            ClearVolumes();
+            get
+            {
+                if (Unsafe.IsNullRef(ref _v2))
+                {
+                    if (Unsafe.IsNullRef(ref _v1))
+                    {
+                        return 0;
+                    }
+                    else
+                    {
+                        return _v1.DestinationId;
+                    }
+                }
+                else
+                {
+                    return _v2.DestinationId;
+                }
+            }
         }
 
         /// <summary>
-        /// Update the <see cref="SplitterDestination"/> from user parameter.
+        /// Mix buffer volumes.
+        /// </summary>
+        /// <remarks>Used when a splitter id is specified in the mix.</remarks>
+        public Span<float> MixBufferVolume
+        {
+            get
+            {
+                if (Unsafe.IsNullRef(ref _v2))
+                {
+                    if (Unsafe.IsNullRef(ref _v1))
+                    {
+                        return Span<float>.Empty;
+                    }
+                    else
+                    {
+                        return _v1.MixBufferVolume;
+                    }
+                }
+                else
+                {
+                    return _v2.MixBufferVolume;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Previous mix buffer volumes.
+        /// </summary>
+        /// <remarks>Used when a splitter id is specified in the mix.</remarks>
+        public Span<float> PreviousMixBufferVolume
+        {
+            get
+            {
+                if (Unsafe.IsNullRef(ref _v2))
+                {
+                    if (Unsafe.IsNullRef(ref _v1))
+                    {
+                        return Span<float>.Empty;
+                    }
+                    else
+                    {
+                        return _v1.PreviousMixBufferVolume;
+                    }
+                }
+                else
+                {
+                    return _v2.PreviousMixBufferVolume;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Get the <see cref="SplitterDestination"/> of the next element or null if not present.
+        /// </summary>
+        public readonly SplitterDestination Next
+        {
+            get
+            {
+                unsafe
+                {
+                    if (Unsafe.IsNullRef(ref _v2))
+                    {
+                        if (Unsafe.IsNullRef(ref _v1))
+                        {
+                            return new SplitterDestination();
+                        }
+                        else
+                        {
+                            return new SplitterDestination(ref _v1.Next);
+                        }
+                    }
+                    else
+                    {
+                        return new SplitterDestination(ref _v2.Next);
+                    }
+                }
+            }
+        }
+
+        /// <summary>
+        /// Creates a new splitter destination wrapper for the version 1 splitter destination data.
+        /// </summary>
+        /// <param name="v1">Version 1 splitter destination data</param>
+        public SplitterDestination(ref SplitterDestinationVersion1 v1)
+        {
+            _v1 = ref v1;
+            _v2 = ref Unsafe.NullRef<SplitterDestinationVersion2>();
+        }
+
+        /// <summary>
+        /// Creates a new splitter destination wrapper for the version 2 splitter destination data.
+        /// </summary>
+        /// <param name="v2">Version 2 splitter destination data</param>
+        public SplitterDestination(ref SplitterDestinationVersion2 v2)
+        {
+
+            _v1 = ref Unsafe.NullRef<SplitterDestinationVersion1>();
+            _v2 = ref v2;
+        }
+
+        /// <summary>
+        /// Creates a new splitter destination wrapper for the splitter destination data.
+        /// </summary>
+        /// <param name="v1">Version 1 splitter destination data</param>
+        /// <param name="v2">Version 2 splitter destination data</param>
+        public unsafe SplitterDestination(SplitterDestinationVersion1* v1, SplitterDestinationVersion2* v2)
+        {
+            _v1 = ref Unsafe.AsRef<SplitterDestinationVersion1>(v1);
+            _v2 = ref Unsafe.AsRef<SplitterDestinationVersion2>(v2);
+        }
+
+        /// <summary>
+        /// Update the splitter destination data from user parameter.
         /// </summary>
         /// <param name="parameter">The user parameter.</param>
-        public void Update(SplitterDestinationInParameter parameter)
+        /// <param name="isPrevVolumeResetSupported">Indicates that the audio renderer revision in use supports explicitly resetting the volume.</param>
+        public void Update<T>(in T parameter, bool isPrevVolumeResetSupported) where T : ISplitterDestinationInParameter
         {
-            Debug.Assert(Id == parameter.Id);
-
-            if (parameter.IsMagicValid() && Id == parameter.Id)
+            if (Unsafe.IsNullRef(ref _v2))
             {
-                DestinationId = parameter.DestinationId;
-
-                parameter.MixBufferVolume.CopyTo(MixBufferVolume);
-
-                if (!IsUsed && parameter.IsUsed)
-                {
-                    MixBufferVolume.CopyTo(PreviousMixBufferVolume);
-
-                    NeedToUpdateInternalState = false;
-                }
-
-                IsUsed = parameter.IsUsed;
+                _v1.Update(parameter, isPrevVolumeResetSupported);
+            }
+            else
+            {
+                _v2.Update(parameter, isPrevVolumeResetSupported);
             }
         }
 
@@ -118,12 +202,14 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
         /// </summary>
         public void UpdateInternalState()
         {
-            if (IsUsed && NeedToUpdateInternalState)
+            if (Unsafe.IsNullRef(ref _v2))
             {
-                MixBufferVolume.CopyTo(PreviousMixBufferVolume);
+                _v1.UpdateInternalState();
+            }
+            else
+            {
+                _v2.UpdateInternalState();
             }
-
-            NeedToUpdateInternalState = false;
         }
 
         /// <summary>
@@ -131,16 +217,23 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
         /// </summary>
         public void MarkAsNeedToUpdateInternalState()
         {
-            NeedToUpdateInternalState = true;
+            if (Unsafe.IsNullRef(ref _v2))
+            {
+                _v1.MarkAsNeedToUpdateInternalState();
+            }
+            else
+            {
+                _v2.MarkAsNeedToUpdateInternalState();
+            }
         }
 
         /// <summary>
-        /// Return true if the <see cref="SplitterDestination"/> is used and has a destination.
+        /// Return true if the splitter destination is used and has a destination.
         /// </summary>
-        /// <returns>True if the <see cref="SplitterDestination"/> is used and has a destination.</returns>
+        /// <returns>True if the splitter destination is used and has a destination.</returns>
         public readonly bool IsConfigured()
         {
-            return IsUsed && DestinationId != Constants.UnusedMixId;
+            return Unsafe.IsNullRef(ref _v2) ? _v1.IsConfigured() : _v2.IsConfigured();
         }
 
         /// <summary>
@@ -150,9 +243,17 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
         /// <returns>The volume for the given destination.</returns>
         public float GetMixVolume(int destinationIndex)
         {
-            Debug.Assert(destinationIndex >= 0 && destinationIndex < Constants.MixBufferCountMax);
+            return Unsafe.IsNullRef(ref _v2) ? _v1.GetMixVolume(destinationIndex) : _v2.GetMixVolume(destinationIndex);
+        }
 
-            return MixBufferVolume[destinationIndex];
+        /// <summary>
+        /// Get the previous volume for a given destination.
+        /// </summary>
+        /// <param name="destinationIndex">The destination index to use.</param>
+        /// <returns>The volume for the given destination.</returns>
+        public float GetMixVolumePrev(int destinationIndex)
+        {
+            return Unsafe.IsNullRef(ref _v2) ? _v1.GetMixVolumePrev(destinationIndex) : _v2.GetMixVolumePrev(destinationIndex);
         }
 
         /// <summary>
@@ -160,22 +261,33 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
         /// </summary>
         public void ClearVolumes()
         {
-            MixBufferVolume.Clear();
-            PreviousMixBufferVolume.Clear();
+            if (Unsafe.IsNullRef(ref _v2))
+            {
+                _v1.ClearVolumes();
+            }
+            else
+            {
+                _v2.ClearVolumes();
+            }
         }
 
         /// <summary>
-        /// Link the next element to the given <see cref="SplitterDestination"/>.
+        /// Link the next element to the given splitter destination.
         /// </summary>
-        /// <param name="next">The given <see cref="SplitterDestination"/> to link.</param>
-        public void Link(ref SplitterDestination next)
+        /// <param name="next">The given splitter destination to link.</param>
+        public void Link(SplitterDestination next)
         {
-            unsafe
+            if (Unsafe.IsNullRef(ref _v2))
             {
-                fixed (SplitterDestination* nextPtr = &next)
-                {
-                    _next = nextPtr;
-                }
+                Debug.Assert(!Unsafe.IsNullRef(ref next._v1));
+
+                _v1.Link(ref next._v1);
+            }
+            else
+            {
+                Debug.Assert(!Unsafe.IsNullRef(ref next._v2));
+
+                _v2.Link(ref next._v2);
             }
         }
 
@@ -184,10 +296,74 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
         /// </summary>
         public void Unlink()
         {
-            unsafe
+            if (Unsafe.IsNullRef(ref _v2))
             {
-                _next = null;
+                _v1.Unlink();
             }
+            else
+            {
+                _v2.Unlink();
+            }
+        }
+
+        /// <summary>
+        /// Checks if any biquad filter is enabled.
+        /// </summary>
+        /// <returns>True if any biquad filter is enabled.</returns>
+        public bool IsBiquadFilterEnabled()
+        {
+            return !Unsafe.IsNullRef(ref _v2) && _v2.IsBiquadFilterEnabled();
+        }
+
+        /// <summary>
+        /// Checks if any biquad filter was previously enabled.
+        /// </summary>
+        /// <returns>True if any biquad filter was previously enabled.</returns>
+        public bool IsBiquadFilterEnabledPrev()
+        {
+            return !Unsafe.IsNullRef(ref _v2) && _v2.IsBiquadFilterEnabledPrev();
+        }
+
+        /// <summary>
+        /// Gets the biquad filter parameters.
+        /// </summary>
+        /// <param name="index">Biquad filter index (0 or 1).</param>
+        /// <returns>Biquad filter parameters.</returns>
+        public ref BiquadFilterParameter GetBiquadFilterParameter(int index)
+        {
+            Debug.Assert(!Unsafe.IsNullRef(ref _v2));
+
+            return ref _v2.GetBiquadFilterParameter(index);
+        }
+
+        /// <summary>
+        /// Checks if any biquad filter was previously enabled.
+        /// </summary>
+        /// <param name="index">Biquad filter index (0 or 1).</param>
+        public void UpdateBiquadFilterEnabledPrev(int index)
+        {
+            if (!Unsafe.IsNullRef(ref _v2))
+            {
+                _v2.UpdateBiquadFilterEnabledPrev(index);
+            }
+        }
+
+        /// <summary>
+        /// Get the reference for the version 1 splitter destination data, or null if version 2 is being used or the destination is null.
+        /// </summary>
+        /// <returns>Reference for the version 1 splitter destination data.</returns>
+        public ref SplitterDestinationVersion1 GetV1RefOrNull()
+        {
+            return ref _v1;
+        }
+
+        /// <summary>
+        /// Get the reference for the version 2 splitter destination data, or null if version 1 is being used or the destination is null.
+        /// </summary>
+        /// <returns>Reference for the version 2 splitter destination data.</returns>
+        public ref SplitterDestinationVersion2 GetV2RefOrNull()
+        {
+            return ref _v2;
         }
     }
 }

src/Ryujinx.Audio/Renderer/Server/Splitter/SplitterDestinationVersion1.cs

@@ -0,0 +1,208 @@
+using Ryujinx.Audio.Renderer.Parameter;
+using Ryujinx.Common.Utilities;
+using System;
+using System.Diagnostics;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Audio.Renderer.Server.Splitter
+{
+    /// <summary>
+    /// Server state for a splitter destination (version 1).
+    /// </summary>
+    [StructLayout(LayoutKind.Sequential, Size = 0xE0, Pack = Alignment)]
+    public struct SplitterDestinationVersion1
+    {
+        public const int Alignment = 0x10;
+
+        /// <summary>
+        /// The unique id of this <see cref="SplitterDestinationVersion1"/>.
+        /// </summary>
+        public int Id;
+
+        /// <summary>
+        /// The mix to output the result of the splitter.
+        /// </summary>
+        public int DestinationId;
+
+        /// <summary>
+        /// Mix buffer volumes storage.
+        /// </summary>
+        private MixArray _mix;
+        private MixArray _previousMix;
+
+        /// <summary>
+        /// Pointer to the next linked element.
+        /// </summary>
+        private unsafe SplitterDestinationVersion1* _next;
+
+        /// <summary>
+        /// Set to true if in use.
+        /// </summary>
+        [MarshalAs(UnmanagedType.I1)]
+        public bool IsUsed;
+
+        /// <summary>
+        /// Set to true if the internal state need to be updated.
+        /// </summary>
+        [MarshalAs(UnmanagedType.I1)]
+        public bool NeedToUpdateInternalState;
+
+        [StructLayout(LayoutKind.Sequential, Size = sizeof(float) * Constants.MixBufferCountMax, Pack = 1)]
+        private struct MixArray { }
+
+        /// <summary>
+        /// Mix buffer volumes.
+        /// </summary>
+        /// <remarks>Used when a splitter id is specified in the mix.</remarks>
+        public Span<float> MixBufferVolume => SpanHelpers.AsSpan<MixArray, float>(ref _mix);
+
+        /// <summary>
+        /// Previous mix buffer volumes.
+        /// </summary>
+        /// <remarks>Used when a splitter id is specified in the mix.</remarks>
+        public Span<float> PreviousMixBufferVolume => SpanHelpers.AsSpan<MixArray, float>(ref _previousMix);
+
+        /// <summary>
+        /// Get the reference of the next element or null if not present.
+        /// </summary>
+        public readonly ref SplitterDestinationVersion1 Next
+        {
+            get
+            {
+                unsafe
+                {
+                    return ref Unsafe.AsRef<SplitterDestinationVersion1>(_next);
+                }
+            }
+        }
+
+        /// <summary>
+        /// Create a new <see cref="SplitterDestinationVersion1"/>.
+        /// </summary>
+        /// <param name="id">The unique id of this <see cref="SplitterDestinationVersion1"/>.</param>
+        public SplitterDestinationVersion1(int id) : this()
+        {
+            Id = id;
+            DestinationId = Constants.UnusedMixId;
+
+            ClearVolumes();
+        }
+
+        /// <summary>
+        /// Update the <see cref="SplitterDestinationVersion1"/> from user parameter.
+        /// </summary>
+        /// <param name="parameter">The user parameter.</param>
+        /// <param name="isPrevVolumeResetSupported">Indicates that the audio renderer revision in use supports explicitly resetting the volume.</param>
+        public void Update<T>(in T parameter, bool isPrevVolumeResetSupported) where T : ISplitterDestinationInParameter
+        {
+            Debug.Assert(Id == parameter.Id);
+
+            if (parameter.IsMagicValid() && Id == parameter.Id)
+            {
+                DestinationId = parameter.DestinationId;
+
+                parameter.MixBufferVolume.CopyTo(MixBufferVolume);
+
+                bool resetPrevVolume = isPrevVolumeResetSupported ? parameter.ResetPrevVolume : !IsUsed && parameter.IsUsed;
+                if (resetPrevVolume)
+                {
+                    MixBufferVolume.CopyTo(PreviousMixBufferVolume);
+
+                    NeedToUpdateInternalState = false;
+                }
+
+                IsUsed = parameter.IsUsed;
+            }
+        }
+
+        /// <summary>
+        /// Update the internal state of the instance.
+        /// </summary>
+        public void UpdateInternalState()
+        {
+            if (IsUsed && NeedToUpdateInternalState)
+            {
+                MixBufferVolume.CopyTo(PreviousMixBufferVolume);
+            }
+
+            NeedToUpdateInternalState = false;
+        }
+
+        /// <summary>
+        /// Set the update internal state marker.
+        /// </summary>
+        public void MarkAsNeedToUpdateInternalState()
+        {
+            NeedToUpdateInternalState = true;
+        }
+
+        /// <summary>
+        /// Return true if the <see cref="SplitterDestinationVersion1"/> is used and has a destination.
+        /// </summary>
+        /// <returns>True if the <see cref="SplitterDestinationVersion1"/> is used and has a destination.</returns>
+        public readonly bool IsConfigured()
+        {
+            return IsUsed && DestinationId != Constants.UnusedMixId;
+        }
+
+        /// <summary>
+        /// Get the volume for a given destination.
+        /// </summary>
+        /// <param name="destinationIndex">The destination index to use.</param>
+        /// <returns>The volume for the given destination.</returns>
+        public float GetMixVolume(int destinationIndex)
+        {
+            Debug.Assert(destinationIndex >= 0 && destinationIndex < Constants.MixBufferCountMax);
+
+            return MixBufferVolume[destinationIndex];
+        }
+
+        /// <summary>
+        /// Get the previous volume for a given destination.
+        /// </summary>
+        /// <param name="destinationIndex">The destination index to use.</param>
+        /// <returns>The volume for the given destination.</returns>
+        public float GetMixVolumePrev(int destinationIndex)
+        {
+            Debug.Assert(destinationIndex >= 0 && destinationIndex < Constants.MixBufferCountMax);
+
+            return PreviousMixBufferVolume[destinationIndex];
+        }
+
+        /// <summary>
+        /// Clear the volumes.
+        /// </summary>
+        public void ClearVolumes()
+        {
+            MixBufferVolume.Clear();
+            PreviousMixBufferVolume.Clear();
+        }
+
+        /// <summary>
+        /// Link the next element to the given <see cref="SplitterDestinationVersion1"/>.
+        /// </summary>
+        /// <param name="next">The given <see cref="SplitterDestinationVersion1"/> to link.</param>
+        public void Link(ref SplitterDestinationVersion1 next)
+        {
+            unsafe
+            {
+                fixed (SplitterDestinationVersion1* nextPtr = &next)
+                {
+                    _next = nextPtr;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Remove the link to the next element.
+        /// </summary>
+        public void Unlink()
+        {
+            unsafe
+            {
+                _next = null;
+            }
+        }
+    }
+}

src/Ryujinx.Audio/Renderer/Server/Splitter/SplitterDestinationVersion2.cs

@@ -0,0 +1,252 @@
+using Ryujinx.Audio.Renderer.Parameter;
+using Ryujinx.Common.Memory;
+using Ryujinx.Common.Utilities;
+using System;
+using System.Diagnostics;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Audio.Renderer.Server.Splitter
+{
+    /// <summary>
+    /// Server state for a splitter destination (version 2).
+    /// </summary>
+    [StructLayout(LayoutKind.Sequential, Size = 0x110, Pack = Alignment)]
+    public struct SplitterDestinationVersion2
+    {
+        public const int Alignment = 0x10;
+
+        /// <summary>
+        /// The unique id of this <see cref="SplitterDestinationVersion2"/>.
+        /// </summary>
+        public int Id;
+
+        /// <summary>
+        /// The mix to output the result of the splitter.
+        /// </summary>
+        public int DestinationId;
+
+        /// <summary>
+        /// Mix buffer volumes storage.
+        /// </summary>
+        private MixArray _mix;
+        private MixArray _previousMix;
+
+        /// <summary>
+        /// Pointer to the next linked element.
+        /// </summary>
+        private unsafe SplitterDestinationVersion2* _next;
+
+        /// <summary>
+        /// Set to true if in use.
+        /// </summary>
+        [MarshalAs(UnmanagedType.I1)]
+        public bool IsUsed;
+
+        /// <summary>
+        /// Set to true if the internal state need to be updated.
+        /// </summary>
+        [MarshalAs(UnmanagedType.I1)]
+        public bool NeedToUpdateInternalState;
+
+        [StructLayout(LayoutKind.Sequential, Size = sizeof(float) * Constants.MixBufferCountMax, Pack = 1)]
+        private struct MixArray { }
+
+        /// <summary>
+        /// Mix buffer volumes.
+        /// </summary>
+        /// <remarks>Used when a splitter id is specified in the mix.</remarks>
+        public Span<float> MixBufferVolume => SpanHelpers.AsSpan<MixArray, float>(ref _mix);
+
+        /// <summary>
+        /// Previous mix buffer volumes.
+        /// </summary>
+        /// <remarks>Used when a splitter id is specified in the mix.</remarks>
+        public Span<float> PreviousMixBufferVolume => SpanHelpers.AsSpan<MixArray, float>(ref _previousMix);
+
+        /// <summary>
+        /// Get the reference of the next element or null if not present.
+        /// </summary>
+        public readonly ref SplitterDestinationVersion2 Next
+        {
+            get
+            {
+                unsafe
+                {
+                    return ref Unsafe.AsRef<SplitterDestinationVersion2>(_next);
+                }
+            }
+        }
+
+        private Array2<BiquadFilterParameter> _biquadFilters;
+
+        private Array2<bool> _isPreviousBiquadFilterEnabled;
+
+        /// <summary>
+        /// Create a new <see cref="SplitterDestinationVersion2"/>.
+        /// </summary>
+        /// <param name="id">The unique id of this <see cref="SplitterDestinationVersion2"/>.</param>
+        public SplitterDestinationVersion2(int id) : this()
+        {
+            Id = id;
+            DestinationId = Constants.UnusedMixId;
+
+            ClearVolumes();
+        }
+
+        /// <summary>
+        /// Update the <see cref="SplitterDestinationVersion2"/> from user parameter.
+        /// </summary>
+        /// <param name="parameter">The user parameter.</param>
+        /// <param name="isPrevVolumeResetSupported">Indicates that the audio renderer revision in use supports explicitly resetting the volume.</param>
+        public void Update<T>(in T parameter, bool isPrevVolumeResetSupported) where T : ISplitterDestinationInParameter
+        {
+            Debug.Assert(Id == parameter.Id);
+
+            if (parameter.IsMagicValid() && Id == parameter.Id)
+            {
+                DestinationId = parameter.DestinationId;
+
+                parameter.MixBufferVolume.CopyTo(MixBufferVolume);
+
+                _biquadFilters = parameter.BiquadFilters;
+
+                bool resetPrevVolume = isPrevVolumeResetSupported ? parameter.ResetPrevVolume : !IsUsed && parameter.IsUsed;
+                if (resetPrevVolume)
+                {
+                    MixBufferVolume.CopyTo(PreviousMixBufferVolume);
+
+                    NeedToUpdateInternalState = false;
+                }
+
+                IsUsed = parameter.IsUsed;
+            }
+        }
+
+        /// <summary>
+        /// Update the internal state of the instance.
+        /// </summary>
+        public void UpdateInternalState()
+        {
+            if (IsUsed && NeedToUpdateInternalState)
+            {
+                MixBufferVolume.CopyTo(PreviousMixBufferVolume);
+            }
+
+            NeedToUpdateInternalState = false;
+        }
+
+        /// <summary>
+        /// Set the update internal state marker.
+        /// </summary>
+        public void MarkAsNeedToUpdateInternalState()
+        {
+            NeedToUpdateInternalState = true;
+        }
+
+        /// <summary>
+        /// Return true if the <see cref="SplitterDestinationVersion2"/> is used and has a destination.
+        /// </summary>
+        /// <returns>True if the <see cref="SplitterDestinationVersion2"/> is used and has a destination.</returns>
+        public readonly bool IsConfigured()
+        {
+            return IsUsed && DestinationId != Constants.UnusedMixId;
+        }
+
+        /// <summary>
+        /// Get the volume for a given destination.
+        /// </summary>
+        /// <param name="destinationIndex">The destination index to use.</param>
+        /// <returns>The volume for the given destination.</returns>
+        public float GetMixVolume(int destinationIndex)
+        {
+            Debug.Assert(destinationIndex >= 0 && destinationIndex < Constants.MixBufferCountMax);
+
+            return MixBufferVolume[destinationIndex];
+        }
+
+        /// <summary>
+        /// Get the previous volume for a given destination.
+        /// </summary>
+        /// <param name="destinationIndex">The destination index to use.</param>
+        /// <returns>The volume for the given destination.</returns>
+        public float GetMixVolumePrev(int destinationIndex)
+        {
+            Debug.Assert(destinationIndex >= 0 && destinationIndex < Constants.MixBufferCountMax);
+
+            return PreviousMixBufferVolume[destinationIndex];
+        }
+
+        /// <summary>
+        /// Clear the volumes.
+        /// </summary>
+        public void ClearVolumes()
+        {
+            MixBufferVolume.Clear();
+            PreviousMixBufferVolume.Clear();
+        }
+
+        /// <summary>
+        /// Link the next element to the given <see cref="SplitterDestinationVersion2"/>.
+        /// </summary>
+        /// <param name="next">The given <see cref="SplitterDestinationVersion2"/> to link.</param>
+        public void Link(ref SplitterDestinationVersion2 next)
+        {
+            unsafe
+            {
+                fixed (SplitterDestinationVersion2* nextPtr = &next)
+                {
+                    _next = nextPtr;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Remove the link to the next element.
+        /// </summary>
+        public void Unlink()
+        {
+            unsafe
+            {
+                _next = null;
+            }
+        }
+
+        /// <summary>
+        /// Checks if any biquad filter is enabled.
+        /// </summary>
+        /// <returns>True if any biquad filter is enabled.</returns>
+        public bool IsBiquadFilterEnabled()
+        {
+            return _biquadFilters[0].Enable || _biquadFilters[1].Enable;
+        }
+
+        /// <summary>
+        /// Checks if any biquad filter was previously enabled.
+        /// </summary>
+        /// <returns>True if any biquad filter was previously enabled.</returns>
+        public bool IsBiquadFilterEnabledPrev()
+        {
+            return _isPreviousBiquadFilterEnabled[0];
+        }
+
+        /// <summary>
+        /// Gets the biquad filter parameters.
+        /// </summary>
+        /// <param name="index">Biquad filter index (0 or 1).</param>
+        /// <returns>Biquad filter parameters.</returns>
+        public ref BiquadFilterParameter GetBiquadFilterParameter(int index)
+        {
+            return ref _biquadFilters[index];
+        }
+
+        /// <summary>
+        /// Checks if any biquad filter was previously enabled.
+        /// </summary>
+        /// <param name="index">Biquad filter index (0 or 1).</param>
+        public void UpdateBiquadFilterEnabledPrev(int index)
+        {
+            _isPreviousBiquadFilterEnabled[index] = _biquadFilters[index].Enable;
+        }
+    }
+}

src/Ryujinx.Audio/Renderer/Server/Splitter/SplitterState.cs

@@ -1,4 +1,5 @@
 using Ryujinx.Audio.Renderer.Parameter;
+using Ryujinx.Common.Extensions;
 using System;
 using System.Buffers;
 using System.Diagnostics;
@@ -14,6 +15,8 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
     {
         public const int Alignment = 0x10;
 
+        private delegate void SplitterDestinationAction(SplitterDestination destination, int index);
+
         /// <summary>
         /// The unique id of this <see cref="SplitterState"/>.
         /// </summary>
@@ -25,7 +28,7 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
         public uint SampleRate;
 
         /// <summary>
-        /// Count of splitter destinations (<see cref="SplitterDestination"/>).
+        /// Count of splitter destinations.
         /// </summary>
         public int DestinationCount;
 
@@ -36,20 +39,25 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
         public bool HasNewConnection;
 
         /// <summary>
-        /// Linked list of <see cref="SplitterDestination"/>.
+        /// Linked list of <see cref="SplitterDestinationVersion1"/>.
         /// </summary>
-        private unsafe SplitterDestination* _destinationsData;
+        private unsafe SplitterDestinationVersion1* _destinationDataV1;
 
         /// <summary>
-        /// Span to the first element of the linked list of <see cref="SplitterDestination"/>.
+        /// Linked list of <see cref="SplitterDestinationVersion2"/>.
         /// </summary>
-        public readonly Span<SplitterDestination> Destinations
+        private unsafe SplitterDestinationVersion2* _destinationDataV2;
+
+        /// <summary>
+        /// First element of the linked list of splitter destinations data.
+        /// </summary>
+        public readonly SplitterDestination Destination
         {
             get
             {
                 unsafe
                 {
-                    return (IntPtr)_destinationsData != IntPtr.Zero ? new Span<SplitterDestination>(_destinationsData, 1) : Span<SplitterDestination>.Empty;
+                    return new SplitterDestination(_destinationDataV1, _destinationDataV2);
                 }
             }
         }
@@ -63,20 +71,20 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
             Id = id;
         }
 
-        public readonly Span<SplitterDestination> GetData(int index)
+        public readonly SplitterDestination GetData(int index)
         {
             int i = 0;
 
-            Span<SplitterDestination> result = Destinations;
+            SplitterDestination result = Destination;
 
             while (i < index)
             {
-                if (result.IsEmpty)
+                if (result.IsNull)
                 {
                     break;
                 }
 
-                result = result[0].Next;
+                result = result.Next;
                 i++;
             }
 
@@ -92,25 +100,25 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
         }
 
         /// <summary>
-        /// Utility function to apply a given <see cref="SpanAction{T, TArg}"/> to all <see cref="Destinations"/>.
+        /// Utility function to apply an action to all <see cref="Destination"/>.
         /// </summary>
         /// <param name="action">The action to execute on each elements.</param>
-        private readonly void ForEachDestination(SpanAction<SplitterDestination, int> action)
+        private readonly void ForEachDestination(SplitterDestinationAction action)
         {
-            Span<SplitterDestination> temp = Destinations;
+            SplitterDestination temp = Destination;
 
             int i = 0;
 
             while (true)
             {
-                if (temp.IsEmpty)
+                if (temp.IsNull)
                 {
                     break;
                 }
 
-                Span<SplitterDestination> next = temp[0].Next;
+                SplitterDestination next = temp.Next;
 
-                action.Invoke(temp, i++);
+                action(temp, i++);
 
                 temp = next;
             }
@@ -122,7 +130,7 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
         /// <param name="context">The splitter context.</param>
         /// <param name="parameter">The user parameter.</param>
         /// <param name="input">The raw input data after the <paramref name="parameter"/>.</param>
-        public void Update(SplitterContext context, ref SplitterInParameter parameter, ReadOnlySpan<byte> input)
+        public void Update(SplitterContext context, in SplitterInParameter parameter, ref SequenceReader<byte> input)
         {
             ClearLinks();
 
@@ -139,23 +147,30 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
 
             if (destinationCount > 0)
             {
-                ReadOnlySpan<int> destinationIds = MemoryMarshal.Cast<byte, int>(input);
+                input.ReadLittleEndian(out int destinationId);
 
-                Memory<SplitterDestination> destination = context.GetDestinationMemory(destinationIds[0]);
+                SplitterDestination destination = context.GetDestination(destinationId);
 
-                SetDestination(ref destination.Span[0]);
+                SetDestination(destination);
 
                 DestinationCount = destinationCount;
 
                 for (int i = 1; i < destinationCount; i++)
                 {
-                    Memory<SplitterDestination> nextDestination = context.GetDestinationMemory(destinationIds[i]);
+                    input.ReadLittleEndian(out destinationId);
 
-                    destination.Span[0].Link(ref nextDestination.Span[0]);
+                    SplitterDestination nextDestination = context.GetDestination(destinationId);
+
+                    destination.Link(nextDestination);
                     destination = nextDestination;
                 }
             }
 
+            if (destinationCount < parameter.DestinationCount)
+            {
+                input.Advance((parameter.DestinationCount - destinationCount) * sizeof(int));
+            }
+
             Debug.Assert(parameter.Id == Id);
 
             if (parameter.Id == Id)
@@ -166,16 +181,21 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
         }
 
         /// <summary>
-        /// Set the head of the linked list of <see cref="Destinations"/>.
+        /// Set the head of the linked list of <see cref="Destination"/>.
         /// </summary>
-        /// <param name="newValue">A reference to a <see cref="SplitterDestination"/>.</param>
-        public void SetDestination(ref SplitterDestination newValue)
+        /// <param name="newValue">New destination value.</param>
+        public void SetDestination(SplitterDestination newValue)
         {
             unsafe
             {
-                fixed (SplitterDestination* newValuePtr = &newValue)
+                fixed (SplitterDestinationVersion1* newValuePtr = &newValue.GetV1RefOrNull())
                 {
-                    _destinationsData = newValuePtr;
+                    _destinationDataV1 = newValuePtr;
+                }
+
+                fixed (SplitterDestinationVersion2* newValuePtr = &newValue.GetV2RefOrNull())
+                {
+                    _destinationDataV2 = newValuePtr;
                 }
             }
         }
@@ -185,19 +205,20 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
         /// </summary>
         public readonly void UpdateInternalState()
         {
-            ForEachDestination((destination, _) => destination[0].UpdateInternalState());
+            ForEachDestination((destination, _) => destination.UpdateInternalState());
         }
 
         /// <summary>
-        /// Clear all links from the <see cref="Destinations"/>.
+        /// Clear all links from the <see cref="Destination"/>.
         /// </summary>
         public void ClearLinks()
         {
-            ForEachDestination((destination, _) => destination[0].Unlink());
+            ForEachDestination((destination, _) => destination.Unlink());
 
             unsafe
             {
-                _destinationsData = (SplitterDestination*)IntPtr.Zero;
+                _destinationDataV1 = null;
+                _destinationDataV2 = null;
             }
         }
 
@@ -211,7 +232,8 @@ namespace Ryujinx.Audio.Renderer.Server.Splitter
             {
                 unsafe
                 {
-                    splitter._destinationsData = (SplitterDestination*)IntPtr.Zero;
+                    splitter._destinationDataV1 = null;
+                    splitter._destinationDataV2 = null;
                 }
 
                 splitter.DestinationCount = 0;

src/Ryujinx.Audio/Renderer/Server/StateUpdater.cs

@@ -9,41 +9,40 @@ using Ryujinx.Audio.Renderer.Server.Sink;
 using Ryujinx.Audio.Renderer.Server.Splitter;
 using Ryujinx.Audio.Renderer.Server.Voice;
 using Ryujinx.Audio.Renderer.Utils;
+using Ryujinx.Common.Extensions;
 using Ryujinx.Common.Logging;
 using System;
 using System.Buffers;
 using System.Diagnostics;
 using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
 using static Ryujinx.Audio.Renderer.Common.BehaviourParameter;
 
 namespace Ryujinx.Audio.Renderer.Server
 {
-    public class StateUpdater
+    public ref struct StateUpdater
     {
-        private readonly ReadOnlyMemory<byte> _inputOrigin;
+        private SequenceReader<byte> _inputReader;
+
         private readonly ReadOnlyMemory<byte> _outputOrigin;
-        private ReadOnlyMemory<byte> _input;
 
         private Memory<byte> _output;
         private readonly uint _processHandle;
         private BehaviourContext _behaviourContext;
 
-        private UpdateDataHeader _inputHeader;
+        private readonly ref readonly UpdateDataHeader _inputHeader;
         private readonly Memory<UpdateDataHeader> _outputHeader;
 
-        private ref UpdateDataHeader OutputHeader => ref _outputHeader.Span[0];
+        private readonly ref UpdateDataHeader OutputHeader => ref _outputHeader.Span[0];
 
-        public StateUpdater(ReadOnlyMemory<byte> input, Memory<byte> output, uint processHandle, BehaviourContext behaviourContext)
+        public StateUpdater(ReadOnlySequence<byte> input, Memory<byte> output, uint processHandle, BehaviourContext behaviourContext)
         {
-            _input = input;
-            _inputOrigin = _input;
+            _inputReader = new SequenceReader<byte>(input);
             _output = output;
             _outputOrigin = _output;
             _processHandle = processHandle;
             _behaviourContext = behaviourContext;
 
-            _inputHeader = SpanIOHelper.Read<UpdateDataHeader>(ref _input);
+            _inputHeader = ref _inputReader.GetRefOrRefToCopy<UpdateDataHeader>(out _);
 
             _outputHeader = SpanMemoryManager<UpdateDataHeader>.Cast(_output[..Unsafe.SizeOf<UpdateDataHeader>()]);
             OutputHeader.Initialize(_behaviourContext.UserRevision);
@@ -52,7 +51,7 @@ namespace Ryujinx.Audio.Renderer.Server
 
         public ResultCode UpdateBehaviourContext()
         {
-            BehaviourParameter parameter = SpanIOHelper.Read<BehaviourParameter>(ref _input);
+            ref readonly BehaviourParameter parameter = ref _inputReader.GetRefOrRefToCopy<BehaviourParameter>(out _);
 
             if (!BehaviourContext.CheckValidRevision(parameter.UserRevision) || parameter.UserRevision != _behaviourContext.UserRevision)
             {
@@ -81,11 +80,11 @@ namespace Ryujinx.Audio.Renderer.Server
 
             foreach (ref MemoryPoolState memoryPool in memoryPools)
             {
-                MemoryPoolInParameter parameter = SpanIOHelper.Read<MemoryPoolInParameter>(ref _input);
+                ref readonly MemoryPoolInParameter parameter = ref _inputReader.GetRefOrRefToCopy<MemoryPoolInParameter>(out _);
 
                 ref MemoryPoolOutStatus outStatus = ref SpanIOHelper.GetWriteRef<MemoryPoolOutStatus>(ref _output)[0];
 
-                PoolMapper.UpdateResult updateResult = mapper.Update(ref memoryPool, ref parameter, ref outStatus);
+                PoolMapper.UpdateResult updateResult = mapper.Update(ref memoryPool, in parameter, ref outStatus);
 
                 if (updateResult != PoolMapper.UpdateResult.Success &&
                     updateResult != PoolMapper.UpdateResult.MapError &&
@@ -115,7 +114,7 @@ namespace Ryujinx.Audio.Renderer.Server
 
             for (int i = 0; i < context.GetCount(); i++)
             {
-                VoiceChannelResourceInParameter parameter = SpanIOHelper.Read<VoiceChannelResourceInParameter>(ref _input);
+                ref readonly VoiceChannelResourceInParameter parameter = ref _inputReader.GetRefOrRefToCopy<VoiceChannelResourceInParameter>(out _);
 
                 ref VoiceChannelResource resource = ref context.GetChannelResource(i);
 
@@ -127,7 +126,7 @@ namespace Ryujinx.Audio.Renderer.Server
             return ResultCode.Success;
         }
 
-        public ResultCode UpdateVoices(VoiceContext context, Memory<MemoryPoolState> memoryPools)
+        public ResultCode UpdateVoices(VoiceContext context, PoolMapper mapper)
         {
             if (context.GetCount() * Unsafe.SizeOf<VoiceInParameter>() != _inputHeader.VoicesSize)
             {
@@ -136,11 +135,7 @@ namespace Ryujinx.Audio.Renderer.Server
 
             int initialOutputSize = _output.Length;
 
-            ReadOnlySpan<VoiceInParameter> parameters = MemoryMarshal.Cast<byte, VoiceInParameter>(_input[..(int)_inputHeader.VoicesSize].Span);
-
-            _input = _input[(int)_inputHeader.VoicesSize..];
-
-            PoolMapper mapper = new(_processHandle, memoryPools, _behaviourContext.IsMemoryPoolForceMappingEnabled());
+            long initialInputConsumed = _inputReader.Consumed;
 
             // First make everything not in use.
             for (int i = 0; i < context.GetCount(); i++)
@@ -157,7 +152,7 @@ namespace Ryujinx.Audio.Renderer.Server
             // Start processing
             for (int i = 0; i < context.GetCount(); i++)
             {
-                VoiceInParameter parameter = parameters[i];
+                ref readonly VoiceInParameter parameter = ref _inputReader.GetRefOrRefToCopy<VoiceInParameter>(out _);
 
                 voiceUpdateStates.Fill(Memory<VoiceUpdateState>.Empty);
 
@@ -181,14 +176,14 @@ namespace Ryujinx.Audio.Renderer.Server
                         currentVoiceState.Initialize();
                     }
 
-                    currentVoiceState.UpdateParameters(out ErrorInfo updateParameterError, ref parameter, ref mapper, ref _behaviourContext);
+                    currentVoiceState.UpdateParameters(out ErrorInfo updateParameterError, in parameter, mapper, ref _behaviourContext);
 
                     if (updateParameterError.ErrorCode != ResultCode.Success)
                     {
                         _behaviourContext.AppendError(ref updateParameterError);
                     }
 
-                    currentVoiceState.UpdateWaveBuffers(out ErrorInfo[] waveBufferUpdateErrorInfos, ref parameter, voiceUpdateStates, ref mapper, ref _behaviourContext);
+                    currentVoiceState.UpdateWaveBuffers(out ErrorInfo[] waveBufferUpdateErrorInfos, in parameter, voiceUpdateStates, mapper, ref _behaviourContext);
 
                     foreach (ref ErrorInfo errorInfo in waveBufferUpdateErrorInfos.AsSpan())
                     {
@@ -198,7 +193,7 @@ namespace Ryujinx.Audio.Renderer.Server
                         }
                     }
 
-                    currentVoiceState.WriteOutStatus(ref outStatus, ref parameter, voiceUpdateStates);
+                    currentVoiceState.WriteOutStatus(ref outStatus, in parameter, voiceUpdateStates);
                 }
             }
 
@@ -211,10 +206,12 @@ namespace Ryujinx.Audio.Renderer.Server
 
             Debug.Assert((initialOutputSize - currentOutputSize) == OutputHeader.VoicesSize);
 
+            _inputReader.SetConsumed(initialInputConsumed + _inputHeader.VoicesSize);
+
             return ResultCode.Success;
         }
 
-        private static void ResetEffect<T>(ref BaseEffect effect, ref T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
+        private static void ResetEffect<T>(ref BaseEffect effect, in T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
         {
             effect.ForceUnmapBuffers(mapper);
 
@@ -234,17 +231,17 @@ namespace Ryujinx.Audio.Renderer.Server
             };
         }
 
-        public ResultCode UpdateEffects(EffectContext context, bool isAudioRendererActive, Memory<MemoryPoolState> memoryPools)
+        public ResultCode UpdateEffects(EffectContext context, bool isAudioRendererActive, PoolMapper mapper)
         {
             if (_behaviourContext.IsEffectInfoVersion2Supported())
             {
-                return UpdateEffectsVersion2(context, isAudioRendererActive, memoryPools);
+                return UpdateEffectsVersion2(context, isAudioRendererActive, mapper);
             }
 
-            return UpdateEffectsVersion1(context, isAudioRendererActive, memoryPools);
+            return UpdateEffectsVersion1(context, isAudioRendererActive, mapper);
         }
 
-        public ResultCode UpdateEffectsVersion2(EffectContext context, bool isAudioRendererActive, Memory<MemoryPoolState> memoryPools)
+        public ResultCode UpdateEffectsVersion2(EffectContext context, bool isAudioRendererActive, PoolMapper mapper)
         {
             if (context.GetCount() * Unsafe.SizeOf<EffectInParameterVersion2>() != _inputHeader.EffectsSize)
             {
@@ -253,26 +250,22 @@ namespace Ryujinx.Audio.Renderer.Server
 
             int initialOutputSize = _output.Length;
 
-            ReadOnlySpan<EffectInParameterVersion2> parameters = MemoryMarshal.Cast<byte, EffectInParameterVersion2>(_input[..(int)_inputHeader.EffectsSize].Span);
-
-            _input = _input[(int)_inputHeader.EffectsSize..];
-
-            PoolMapper mapper = new(_processHandle, memoryPools, _behaviourContext.IsMemoryPoolForceMappingEnabled());
+            long initialInputConsumed = _inputReader.Consumed;
 
             for (int i = 0; i < context.GetCount(); i++)
             {
-                EffectInParameterVersion2 parameter = parameters[i];
+                ref readonly EffectInParameterVersion2 parameter = ref _inputReader.GetRefOrRefToCopy<EffectInParameterVersion2>(out _);
 
                 ref EffectOutStatusVersion2 outStatus = ref SpanIOHelper.GetWriteRef<EffectOutStatusVersion2>(ref _output)[0];
 
                 ref BaseEffect effect = ref context.GetEffect(i);
 
-                if (!effect.IsTypeValid(ref parameter))
+                if (!effect.IsTypeValid(in parameter))
                 {
-                    ResetEffect(ref effect, ref parameter, mapper);
+                    ResetEffect(ref effect, in parameter, mapper);
                 }
 
-                effect.Update(out ErrorInfo updateErrorInfo, ref parameter, mapper);
+                effect.Update(out ErrorInfo updateErrorInfo, in parameter, mapper);
 
                 if (updateErrorInfo.ErrorCode != ResultCode.Success)
                 {
@@ -297,10 +290,12 @@ namespace Ryujinx.Audio.Renderer.Server
 
             Debug.Assert((initialOutputSize - currentOutputSize) == OutputHeader.EffectsSize);
 
+            _inputReader.SetConsumed(initialInputConsumed + _inputHeader.EffectsSize);
+
             return ResultCode.Success;
         }
 
-        public ResultCode UpdateEffectsVersion1(EffectContext context, bool isAudioRendererActive, Memory<MemoryPoolState> memoryPools)
+        public ResultCode UpdateEffectsVersion1(EffectContext context, bool isAudioRendererActive, PoolMapper mapper)
         {
             if (context.GetCount() * Unsafe.SizeOf<EffectInParameterVersion1>() != _inputHeader.EffectsSize)
             {
@@ -309,26 +304,22 @@ namespace Ryujinx.Audio.Renderer.Server
 
             int initialOutputSize = _output.Length;
 
-            ReadOnlySpan<EffectInParameterVersion1> parameters = MemoryMarshal.Cast<byte, EffectInParameterVersion1>(_input[..(int)_inputHeader.EffectsSize].Span);
-
-            _input = _input[(int)_inputHeader.EffectsSize..];
-
-            PoolMapper mapper = new(_processHandle, memoryPools, _behaviourContext.IsMemoryPoolForceMappingEnabled());
+            long initialInputConsumed = _inputReader.Consumed;
 
             for (int i = 0; i < context.GetCount(); i++)
             {
-                EffectInParameterVersion1 parameter = parameters[i];
+                ref readonly EffectInParameterVersion1 parameter = ref _inputReader.GetRefOrRefToCopy<EffectInParameterVersion1>(out _);
 
                 ref EffectOutStatusVersion1 outStatus = ref SpanIOHelper.GetWriteRef<EffectOutStatusVersion1>(ref _output)[0];
 
                 ref BaseEffect effect = ref context.GetEffect(i);
 
-                if (!effect.IsTypeValid(ref parameter))
+                if (!effect.IsTypeValid(in parameter))
                 {
-                    ResetEffect(ref effect, ref parameter, mapper);
+                    ResetEffect(ref effect, in parameter, mapper);
                 }
 
-                effect.Update(out ErrorInfo updateErrorInfo, ref parameter, mapper);
+                effect.Update(out ErrorInfo updateErrorInfo, in parameter, mapper);
 
                 if (updateErrorInfo.ErrorCode != ResultCode.Success)
                 {
@@ -345,38 +336,40 @@ namespace Ryujinx.Audio.Renderer.Server
 
             Debug.Assert((initialOutputSize - currentOutputSize) == OutputHeader.EffectsSize);
 
+            _inputReader.SetConsumed(initialInputConsumed + _inputHeader.EffectsSize);
+
             return ResultCode.Success;
         }
 
         public ResultCode UpdateSplitter(SplitterContext context)
         {
-            if (context.Update(_input.Span, out int consumedSize))
+            if (context.Update(ref _inputReader))
             {
-                _input = _input[consumedSize..];
-
                 return ResultCode.Success;
             }
 
             return ResultCode.InvalidUpdateInfo;
         }
 
-        private static bool CheckMixParametersValidity(MixContext mixContext, uint mixBufferCount, uint inputMixCount, ReadOnlySpan<MixParameter> parameters)
+        private static bool CheckMixParametersValidity(MixContext mixContext, uint mixBufferCount, uint inputMixCount, SequenceReader<byte> parameters)
         {
             uint maxMixStateCount = mixContext.GetCount();
             uint totalRequiredMixBufferCount = 0;
 
             for (int i = 0; i < inputMixCount; i++)
             {
-                if (parameters[i].IsUsed)
+                ref readonly MixParameter parameter = ref parameters.GetRefOrRefToCopy<MixParameter>(out _);
+
+                if (parameter.IsUsed)
                 {
-                    if (parameters[i].DestinationMixId != Constants.UnusedMixId &&
-                        parameters[i].DestinationMixId > maxMixStateCount &&
-                        parameters[i].MixId != Constants.FinalMixId)
+                    if (parameter.DestinationMixId != Constants.UnusedMixId &&
+                        parameter.DestinationMixId > maxMixStateCount &&
+                        parameter.MixId != Constants.FinalMixId)
                     {
                         return true;
                     }
 
-                    totalRequiredMixBufferCount += parameters[i].BufferCount;
+                    totalRequiredMixBufferCount += parameter.BufferCount;
                 }
             }
 
@@ -391,7 +384,7 @@ namespace Ryujinx.Audio.Renderer.Server
 
             if (_behaviourContext.IsMixInParameterDirtyOnlyUpdateSupported())
             {
-                MixInParameterDirtyOnlyUpdate parameter = MemoryMarshal.Cast<byte, MixInParameterDirtyOnlyUpdate>(_input.Span)[0];
+                ref readonly MixInParameterDirtyOnlyUpdate parameter = ref _inputReader.GetRefOrRefToCopy<MixInParameterDirtyOnlyUpdate>(out _);
 
                 mixCount = parameter.MixCount;
 
@@ -411,25 +404,20 @@ namespace Ryujinx.Audio.Renderer.Server
                 return ResultCode.InvalidUpdateInfo;
             }
 
-            if (_behaviourContext.IsMixInParameterDirtyOnlyUpdateSupported())
-            {
-                _input = _input[Unsafe.SizeOf<MixInParameterDirtyOnlyUpdate>()..];
-            }
+            long initialInputConsumed = _inputReader.Consumed;
 
-            ReadOnlySpan<MixParameter> parameters = MemoryMarshal.Cast<byte, MixParameter>(_input.Span[..(int)inputMixSize]);
+            int parameterCount = (int)inputMixSize / Unsafe.SizeOf<MixParameter>();
 
-            _input = _input[(int)inputMixSize..];
-
-            if (CheckMixParametersValidity(mixContext, mixBufferCount, mixCount, parameters))
+            if (CheckMixParametersValidity(mixContext, mixBufferCount, mixCount, _inputReader))
             {
                 return ResultCode.InvalidUpdateInfo;
             }
 
             bool isMixContextDirty = false;
 
-            for (int i = 0; i < parameters.Length; i++)
+            for (int i = 0; i < parameterCount; i++)
             {
-                MixParameter parameter = parameters[i];
+                ref readonly MixParameter parameter = ref _inputReader.GetRefOrRefToCopy<MixParameter>(out _);
 
                 int mixId = i;
 
@@ -454,7 +442,7 @@ namespace Ryujinx.Audio.Renderer.Server
 
                 if (mix.IsUsed)
                 {
-                    isMixContextDirty |= mix.Update(mixContext.EdgeMatrix, ref parameter, effectContext, splitterContext, _behaviourContext);
+                    isMixContextDirty |= mix.Update(mixContext.EdgeMatrix, in parameter, effectContext, splitterContext, _behaviourContext);
                 }
             }
 
@@ -473,10 +461,12 @@ namespace Ryujinx.Audio.Renderer.Server
                 }
             }
 
+            _inputReader.SetConsumed(initialInputConsumed + inputMixSize);
+
             return ResultCode.Success;
         }
 
-        private static void ResetSink(ref BaseSink sink, ref SinkInParameter parameter)
+        private static void ResetSink(ref BaseSink sink, in SinkInParameter parameter)
         {
             sink.CleanUp();
 
@@ -489,10 +479,8 @@ namespace Ryujinx.Audio.Renderer.Server
             };
         }
 
-        public ResultCode UpdateSinks(SinkContext context, Memory<MemoryPoolState> memoryPools)
+        public ResultCode UpdateSinks(SinkContext context, PoolMapper mapper)
         {
-            PoolMapper mapper = new(_processHandle, memoryPools, _behaviourContext.IsMemoryPoolForceMappingEnabled());
-
             if (context.GetCount() * Unsafe.SizeOf<SinkInParameter>() != _inputHeader.SinksSize)
             {
                 return ResultCode.InvalidUpdateInfo;
@@ -500,22 +488,20 @@ namespace Ryujinx.Audio.Renderer.Server
 
             int initialOutputSize = _output.Length;
 
-            ReadOnlySpan<SinkInParameter> parameters = MemoryMarshal.Cast<byte, SinkInParameter>(_input[..(int)_inputHeader.SinksSize].Span);
-
-            _input = _input[(int)_inputHeader.SinksSize..];
+            long initialInputConsumed = _inputReader.Consumed;
 
             for (int i = 0; i < context.GetCount(); i++)
             {
-                SinkInParameter parameter = parameters[i];
+                ref readonly SinkInParameter parameter = ref _inputReader.GetRefOrRefToCopy<SinkInParameter>(out _);
                 ref SinkOutStatus outStatus = ref SpanIOHelper.GetWriteRef<SinkOutStatus>(ref _output)[0];
                 ref BaseSink sink = ref context.GetSink(i);
 
-                if (!sink.IsTypeValid(ref parameter))
+                if (!sink.IsTypeValid(in parameter))
                 {
-                    ResetSink(ref sink, ref parameter);
+                    ResetSink(ref sink, in parameter);
                 }
 
-                sink.Update(out ErrorInfo updateErrorInfo, ref parameter, ref outStatus, mapper);
+                sink.Update(out ErrorInfo updateErrorInfo, in parameter, ref outStatus, mapper);
 
                 if (updateErrorInfo.ErrorCode != ResultCode.Success)
                 {
@@ -530,6 +516,8 @@ namespace Ryujinx.Audio.Renderer.Server
 
             Debug.Assert((initialOutputSize - currentOutputSize) == OutputHeader.SinksSize);
 
+            _inputReader.SetConsumed(initialInputConsumed + _inputHeader.SinksSize);
+
             return ResultCode.Success;
         }
 
@@ -540,7 +528,7 @@ namespace Ryujinx.Audio.Renderer.Server
                 return ResultCode.InvalidUpdateInfo;
             }
 
-            PerformanceInParameter parameter = SpanIOHelper.Read<PerformanceInParameter>(ref _input);
+            ref readonly PerformanceInParameter parameter = ref _inputReader.GetRefOrRefToCopy<PerformanceInParameter>(out _);
 
             ref PerformanceOutStatus outStatus = ref SpanIOHelper.GetWriteRef<PerformanceOutStatus>(ref _output)[0];
 
@@ -585,9 +573,9 @@ namespace Ryujinx.Audio.Renderer.Server
             return ResultCode.Success;
         }
 
-        public ResultCode CheckConsumedSize()
+        public readonly ResultCode CheckConsumedSize()
         {
-            int consumedInputSize = _inputOrigin.Length - _input.Length;
+            long consumedInputSize = _inputReader.Consumed;
             int consumedOutputSize = _outputOrigin.Length - _output.Length;
 
             if (consumedInputSize != _inputHeader.TotalSize)

src/Ryujinx.Audio/Renderer/Server/Voice/VoiceState.cs

@@ -254,7 +254,7 @@ namespace Ryujinx.Audio.Renderer.Server.Voice
         /// </summary>
         /// <param name="parameter">The user parameter.</param>
         /// <returns>Return true, if the server voice information needs to be updated.</returns>
-        private readonly bool ShouldUpdateParameters(ref VoiceInParameter parameter)
+        private readonly bool ShouldUpdateParameters(in VoiceInParameter parameter)
         {
             if (DataSourceStateAddressInfo.CpuAddress == parameter.DataSourceStateAddress)
             {
@@ -273,7 +273,7 @@ namespace Ryujinx.Audio.Renderer.Server.Voice
         /// <param name="parameter">The user parameter.</param>
         /// <param name="poolMapper">The mapper to use.</param>
         /// <param name="behaviourContext">The behaviour context.</param>
-        public void UpdateParameters(out ErrorInfo outErrorInfo, ref VoiceInParameter parameter, ref PoolMapper poolMapper, ref BehaviourContext behaviourContext)
+        public void UpdateParameters(out ErrorInfo outErrorInfo, in VoiceInParameter parameter, PoolMapper poolMapper, ref BehaviourContext behaviourContext)
         {
             InUse = parameter.InUse;
             Id = parameter.Id;
@@ -326,7 +326,7 @@ namespace Ryujinx.Audio.Renderer.Server.Voice
                 VoiceDropFlag = false;
             }
 
-            if (ShouldUpdateParameters(ref parameter))
+            if (ShouldUpdateParameters(in parameter))
             {
                 DataSourceStateUnmapped = !poolMapper.TryAttachBuffer(out outErrorInfo, ref DataSourceStateAddressInfo, parameter.DataSourceStateAddress, parameter.DataSourceStateSize);
             }
@@ -380,7 +380,7 @@ namespace Ryujinx.Audio.Renderer.Server.Voice
         /// <param name="outStatus">The given user output.</param>
         /// <param name="parameter">The user parameter.</param>
         /// <param name="voiceUpdateStates">The voice states associated to the <see cref="VoiceState"/>.</param>
-        public void WriteOutStatus(ref VoiceOutStatus outStatus, ref VoiceInParameter parameter, ReadOnlySpan<Memory<VoiceUpdateState>> voiceUpdateStates)
+        public void WriteOutStatus(ref VoiceOutStatus outStatus, in VoiceInParameter parameter, ReadOnlySpan<Memory<VoiceUpdateState>> voiceUpdateStates)
         {
 #if DEBUG
             // Sanity check in debug mode of the internal state
@@ -426,7 +426,12 @@ namespace Ryujinx.Audio.Renderer.Server.Voice
         /// <param name="voiceUpdateStates">The voice states associated to the <see cref="VoiceState"/>.</param>
         /// <param name="mapper">The mapper to use.</param>
         /// <param name="behaviourContext">The behaviour context.</param>
-        public void UpdateWaveBuffers(out ErrorInfo[] errorInfos, ref VoiceInParameter parameter, ReadOnlySpan<Memory<VoiceUpdateState>> voiceUpdateStates, ref PoolMapper mapper, ref BehaviourContext behaviourContext)
+        public void UpdateWaveBuffers(
+            out ErrorInfo[] errorInfos,
+            in VoiceInParameter parameter,
+            ReadOnlySpan<Memory<VoiceUpdateState>> voiceUpdateStates,
+            PoolMapper mapper,
+            ref BehaviourContext behaviourContext)
         {
             errorInfos = new ErrorInfo[Constants.VoiceWaveBufferCount * 2];
 
@@ -444,7 +449,7 @@ namespace Ryujinx.Audio.Renderer.Server.Voice
 
             for (int i = 0; i < Constants.VoiceWaveBufferCount; i++)
             {
-                UpdateWaveBuffer(errorInfos.AsSpan(i * 2, 2), ref WaveBuffers[i], ref parameter.WaveBuffers[i], parameter.SampleFormat, voiceUpdateState.IsWaveBufferValid[i], ref mapper, ref behaviourContext);
+                UpdateWaveBuffer(errorInfos.AsSpan(i * 2, 2), ref WaveBuffers[i], ref parameter.WaveBuffers[i], parameter.SampleFormat, voiceUpdateState.IsWaveBufferValid[i], mapper, ref behaviourContext);
             }
         }
 
@@ -458,7 +463,14 @@ namespace Ryujinx.Audio.Renderer.Server.Voice
         /// <param name="isValid">If set to true, the server side wavebuffer is considered valid.</param>
         /// <param name="mapper">The mapper to use.</param>
         /// <param name="behaviourContext">The behaviour context.</param>
-        private void UpdateWaveBuffer(Span<ErrorInfo> errorInfos, ref WaveBuffer waveBuffer, ref WaveBufferInternal inputWaveBuffer, SampleFormat sampleFormat, bool isValid, ref PoolMapper mapper, ref BehaviourContext behaviourContext)
+        private void UpdateWaveBuffer(
+            Span<ErrorInfo> errorInfos,
+            ref WaveBuffer waveBuffer,
+            ref WaveBufferInternal inputWaveBuffer,
+            SampleFormat sampleFormat,
+            bool isValid,
+            PoolMapper mapper,
+            ref BehaviourContext behaviourContext)
         {
             if (!isValid && waveBuffer.IsSendToAudioProcessor && waveBuffer.BufferAddressInfo.CpuAddress != 0)
             {