Move solution and projects to src

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/BasicBlock.cs

@@ -0,0 +1,91 @@
+using System.Collections.Generic;
+
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    class BasicBlock
+    {
+        public int Index { get; set; }
+
+        public LinkedList<INode> Operations { get; }
+
+        private BasicBlock _next;
+        private BasicBlock _branch;
+
+        public BasicBlock Next
+        {
+            get => _next;
+            set => _next = AddSuccessor(_next, value);
+        }
+
+        public BasicBlock Branch
+        {
+            get => _branch;
+            set => _branch = AddSuccessor(_branch, value);
+        }
+
+        public bool HasBranch => _branch != null;
+        public bool Reachable => Index == 0 || Predecessors.Count != 0;
+
+        public List<BasicBlock> Predecessors { get; }
+
+        public HashSet<BasicBlock> DominanceFrontiers { get; }
+
+        public BasicBlock ImmediateDominator { get; set; }
+
+        public BasicBlock()
+        {
+            Operations = new LinkedList<INode>();
+
+            Predecessors = new List<BasicBlock>();
+
+            DominanceFrontiers = new HashSet<BasicBlock>();
+        }
+
+        public BasicBlock(int index) : this()
+        {
+            Index = index;
+        }
+
+        private BasicBlock AddSuccessor(BasicBlock oldBlock, BasicBlock newBlock)
+        {
+            oldBlock?.Predecessors.Remove(this);
+            newBlock?.Predecessors.Add(this);
+
+            return newBlock;
+        }
+
+        public INode GetLastOp()
+        {
+            return Operations.Last?.Value;
+        }
+
+        public void Append(INode node)
+        {
+            INode lastOp = GetLastOp();
+
+            if (lastOp is Operation operation && IsControlFlowInst(operation.Inst))
+            {
+                Operations.AddBefore(Operations.Last, node);
+            }
+            else
+            {
+                Operations.AddLast(node);
+            }
+        }
+
+        private static bool IsControlFlowInst(Instruction inst)
+        {
+            switch (inst)
+            {
+                case Instruction.Branch:
+                case Instruction.BranchIfFalse:
+                case Instruction.BranchIfTrue:
+                case Instruction.Discard:
+                case Instruction.Return:
+                    return true;
+            }
+
+            return false;
+        }
+    }
+}

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/CommentNode.cs

@@ -0,0 +1,12 @@
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    class CommentNode : Operation
+    {
+        public string Comment { get; }
+
+        public CommentNode(string comment) : base(Instruction.Comment, null)
+        {
+            Comment = comment;
+        }
+    }
+}

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/Function.cs

@@ -0,0 +1,23 @@
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    class Function
+    {
+        public BasicBlock[] Blocks { get; }
+
+        public string Name { get; }
+
+        public bool ReturnsValue { get; }
+
+        public int InArgumentsCount { get; }
+        public int OutArgumentsCount { get; }
+
+        public Function(BasicBlock[] blocks, string name, bool returnsValue, int inArgumentsCount, int outArgumentsCount)
+        {
+            Blocks = blocks;
+            Name = name;
+            ReturnsValue = returnsValue;
+            InArgumentsCount = inArgumentsCount;
+            OutArgumentsCount = outArgumentsCount;
+        }
+    }
+}

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/INode.cs

@@ -0,0 +1,15 @@
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    interface INode
+    {
+        Operand Dest { get; set; }
+
+        int DestsCount { get; }
+        int SourcesCount { get; }
+
+        Operand GetDest(int index);
+        Operand GetSource(int index);
+
+        void SetSource(int index, Operand operand);
+    }
+}

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/Instruction.cs

@@ -0,0 +1,178 @@
+using System;
+
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    [Flags]
+    enum Instruction
+    {
+        Absolute = 1,
+        Add,
+        AtomicAdd,
+        AtomicAnd,
+        AtomicCompareAndSwap,
+        AtomicMinS32,
+        AtomicMinU32,
+        AtomicMaxS32,
+        AtomicMaxU32,
+        AtomicOr,
+        AtomicSwap,
+        AtomicXor,
+        Ballot,
+        Barrier,
+        BitCount,
+        BitfieldExtractS32,
+        BitfieldExtractU32,
+        BitfieldInsert,
+        BitfieldReverse,
+        BitwiseAnd,
+        BitwiseExclusiveOr,
+        BitwiseNot,
+        BitwiseOr,
+        Branch,
+        BranchIfFalse,
+        BranchIfTrue,
+        Call,
+        Ceiling,
+        Clamp,
+        ClampU32,
+        Comment,
+        CompareEqual,
+        CompareGreater,
+        CompareGreaterOrEqual,
+        CompareGreaterOrEqualU32,
+        CompareGreaterU32,
+        CompareLess,
+        CompareLessOrEqual,
+        CompareLessOrEqualU32,
+        CompareLessU32,
+        CompareNotEqual,
+        ConditionalSelect,
+        ConvertFP32ToFP64,
+        ConvertFP64ToFP32,
+        ConvertFP32ToS32,
+        ConvertFP32ToU32,
+        ConvertFP64ToS32,
+        ConvertFP64ToU32,
+        ConvertS32ToFP32,
+        ConvertS32ToFP64,
+        ConvertU32ToFP32,
+        ConvertU32ToFP64,
+        Copy,
+        Cosine,
+        Ddx,
+        Ddy,
+        Discard,
+        Divide,
+        EmitVertex,
+        EndPrimitive,
+        ExponentB2,
+        FSIBegin,
+        FSIEnd,
+        FindLSB,
+        FindMSBS32,
+        FindMSBU32,
+        Floor,
+        FusedMultiplyAdd,
+        GroupMemoryBarrier,
+        ImageLoad,
+        ImageStore,
+        ImageAtomic,
+        IsNan,
+        Load,
+        LoadConstant,
+        LoadGlobal,
+        LoadLocal,
+        LoadShared,
+        LoadStorage,
+        Lod,
+        LogarithmB2,
+        LogicalAnd,
+        LogicalExclusiveOr,
+        LogicalNot,
+        LogicalOr,
+        LoopBreak,
+        LoopContinue,
+        MarkLabel,
+        Maximum,
+        MaximumU32,
+        MemoryBarrier,
+        Minimum,
+        MinimumU32,
+        Multiply,
+        MultiplyHighS32,
+        MultiplyHighU32,
+        Negate,
+        PackDouble2x32,
+        PackHalf2x16,
+        ReciprocalSquareRoot,
+        Return,
+        Round,
+        ShiftLeft,
+        ShiftRightS32,
+        ShiftRightU32,
+        Shuffle,
+        ShuffleDown,
+        ShuffleUp,
+        ShuffleXor,
+        Sine,
+        SquareRoot,
+        Store,
+        StoreGlobal,
+        StoreGlobal16,
+        StoreGlobal8,
+        StoreLocal,
+        StoreShared,
+        StoreShared16,
+        StoreShared8,
+        StoreStorage,
+        StoreStorage16,
+        StoreStorage8,
+        Subtract,
+        SwizzleAdd,
+        TextureSample,
+        TextureSize,
+        Truncate,
+        UnpackDouble2x32,
+        UnpackHalf2x16,
+        VectorExtract,
+        VoteAll,
+        VoteAllEqual,
+        VoteAny,
+
+        Count,
+
+        FP32 = 1 << 16,
+        FP64 = 1 << 17,
+
+        Mask = 0xffff
+    }
+
+    static class InstructionExtensions
+    {
+        public static bool IsAtomic(this Instruction inst)
+        {
+            switch (inst & Instruction.Mask)
+            {
+                case Instruction.AtomicAdd:
+                case Instruction.AtomicAnd:
+                case Instruction.AtomicCompareAndSwap:
+                case Instruction.AtomicMaxS32:
+                case Instruction.AtomicMaxU32:
+                case Instruction.AtomicMinS32:
+                case Instruction.AtomicMinU32:
+                case Instruction.AtomicOr:
+                case Instruction.AtomicSwap:
+                case Instruction.AtomicXor:
+                    return true;
+            }
+
+            return false;
+        }
+
+        public static bool IsTextureQuery(this Instruction inst)
+        {
+            inst &= Instruction.Mask;
+            return inst == Instruction.Lod || inst == Instruction.TextureSize;
+        }
+    }
+}

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/IoVariable.cs

@@ -0,0 +1,51 @@
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    enum IoVariable
+    {
+        Invalid,
+
+        BackColorDiffuse,
+        BackColorSpecular,
+        BaseInstance,
+        BaseVertex,
+        ClipDistance,
+        CtaId,
+        DrawIndex,
+        FogCoord,
+        FragmentCoord,
+        FragmentOutputColor,
+        FragmentOutputDepth,
+        FragmentOutputIsBgra, // TODO: Remove and use constant buffer access.
+        FrontColorDiffuse,
+        FrontColorSpecular,
+        FrontFacing,
+        InstanceId,
+        InstanceIndex,
+        InvocationId,
+        Layer,
+        PatchVertices,
+        PointCoord,
+        PointSize,
+        Position,
+        PrimitiveId,
+        SubgroupEqMask,
+        SubgroupGeMask,
+        SubgroupGtMask,
+        SubgroupLaneId,
+        SubgroupLeMask,
+        SubgroupLtMask,
+        SupportBlockViewInverse, // TODO: Remove and use constant buffer access.
+        SupportBlockRenderScale, // TODO: Remove and use constant buffer access.
+        TessellationCoord,
+        TessellationLevelInner,
+        TessellationLevelOuter,
+        TextureCoord,
+        ThreadId,
+        ThreadKill,
+        UserDefined,
+        VertexId,
+        VertexIndex,
+        ViewportIndex,
+        ViewportMask
+    }
+}

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/IrConsts.cs

@@ -0,0 +1,8 @@
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    static class IrConsts
+    {
+        public const int False = 0;
+        public const int True  = -1;
+    }
+}

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/Operand.cs

@@ -0,0 +1,79 @@
+using Ryujinx.Graphics.Shader.Decoders;
+using System;
+using System.Collections.Generic;
+
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    class Operand
+    {
+        private const int CbufSlotBits = 5;
+        private const int CbufSlotLsb  = 32 - CbufSlotBits;
+        private const int CbufSlotMask = (1 << CbufSlotBits) - 1;
+
+        public OperandType Type { get; }
+
+        public int Value { get; }
+
+        public INode AsgOp { get; set; }
+
+        public HashSet<INode> UseOps { get; }
+
+        private Operand()
+        {
+            UseOps = new HashSet<INode>();
+        }
+
+        public Operand(OperandType type) : this()
+        {
+            Type = type;
+        }
+
+        public Operand(OperandType type, int value) : this()
+        {
+            Type  = type;
+            Value = value;
+        }
+
+        public Operand(Register reg) : this()
+        {
+            Type  = OperandType.Register;
+            Value = PackRegInfo(reg.Index, reg.Type);
+        }
+
+        public Operand(int slot, int offset) : this()
+        {
+            Type  = OperandType.ConstantBuffer;
+            Value = PackCbufInfo(slot, offset);
+        }
+
+        private static int PackCbufInfo(int slot, int offset)
+        {
+            return (slot << CbufSlotLsb) | offset;
+        }
+
+        private static int PackRegInfo(int index, RegisterType type)
+        {
+            return ((int)type << 24) | index;
+        }
+
+        public int GetCbufSlot()
+        {
+            return (Value >> CbufSlotLsb) & CbufSlotMask;
+        }
+
+        public int GetCbufOffset()
+        {
+            return Value & ~(CbufSlotMask << CbufSlotLsb);
+        }
+
+        public Register GetRegister()
+        {
+            return new Register(Value & 0xffffff, (RegisterType)(Value >> 24));
+        }
+
+        public float AsFloat()
+        {
+            return BitConverter.Int32BitsToSingle(Value);
+        }
+    }
+}

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/OperandHelper.cs

@@ -0,0 +1,62 @@
+using Ryujinx.Graphics.Shader.Decoders;
+using System;
+
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    static class OperandHelper
+    {
+        public static Operand Argument(int value)
+        {
+            return new Operand(OperandType.Argument, value);
+        }
+
+        public static Operand Cbuf(int slot, int offset)
+        {
+            return new Operand(slot, offset);
+        }
+
+        public static Operand Const(int value)
+        {
+            return new Operand(OperandType.Constant, value);
+        }
+
+        public static Operand ConstF(float value)
+        {
+            return new Operand(OperandType.Constant, BitConverter.SingleToInt32Bits(value));
+        }
+
+        public static Operand Label()
+        {
+            return new Operand(OperandType.Label);
+        }
+
+        public static Operand Local()
+        {
+            return new Operand(OperandType.LocalVariable);
+        }
+
+        public static Operand Register(int index, RegisterType type)
+        {
+            return Register(new Register(index, type));
+        }
+
+        public static Operand Register(Register reg)
+        {
+            if (reg.IsRZ)
+            {
+                return Const(0);
+            }
+            else if (reg.IsPT)
+            {
+                return Const(IrConsts.True);
+            }
+
+            return new Operand(reg);
+        }
+
+        public static Operand Undef()
+        {
+            return new Operand(OperandType.Undefined);
+        }
+    }
+}

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/OperandType.cs

@@ -0,0 +1,13 @@
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    enum OperandType
+    {
+        Argument,
+        Constant,
+        ConstantBuffer,
+        Label,
+        LocalVariable,
+        Register,
+        Undefined
+    }
+}

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/Operation.cs

@@ -0,0 +1,257 @@
+using System;
+using System.Diagnostics;
+
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    class Operation : INode
+    {
+        public Instruction Inst { get; private set; }
+        public StorageKind StorageKind { get; }
+
+        private Operand[] _dests;
+
+        public Operand Dest
+        {
+            get
+            {
+                return _dests.Length != 0 ? _dests[0] : null;
+            }
+            set
+            {
+                if (value != null && value.Type == OperandType.LocalVariable)
+                {
+                    value.AsgOp = this;
+                }
+
+                if (value != null)
+                {
+                    _dests = new[] { value };
+                }
+                else
+                {
+                    _dests = Array.Empty<Operand>();
+                }
+            }
+        }
+
+        public int DestsCount => _dests.Length;
+
+        private Operand[] _sources;
+
+        public int SourcesCount => _sources.Length;
+
+        public int Index { get; }
+
+        private Operation(Operand[] sources)
+        {
+            // The array may be modified externally, so we store a copy.
+            _sources = (Operand[])sources.Clone();
+
+            for (int index = 0; index < _sources.Length; index++)
+            {
+                Operand source = _sources[index];
+
+                if (source.Type == OperandType.LocalVariable)
+                {
+                    source.UseOps.Add(this);
+                }
+            }
+        }
+
+        public Operation(Instruction inst, int index, Operand[] dests, Operand[] sources) : this(sources)
+        {
+            Inst  = inst;
+            Index = index;
+
+            if (dests != null)
+            {
+                // The array may be modified externally, so we store a copy.
+                _dests = (Operand[])dests.Clone();
+
+                for (int dstIndex = 0; dstIndex < dests.Length; dstIndex++)
+                {
+                    Operand dest = dests[dstIndex];
+
+                    if (dest != null && dest.Type == OperandType.LocalVariable)
+                    {
+                        dest.AsgOp = this;
+                    }
+                }
+            }
+            else
+            {
+                _dests = Array.Empty<Operand>();
+            }
+        }
+
+        public Operation(Instruction inst, Operand dest, params Operand[] sources) : this(sources)
+        {
+            Inst = inst;
+
+            if (dest != null)
+            {
+                dest.AsgOp = this;
+
+                _dests = new[] { dest };
+            }
+            else
+            {
+                _dests = Array.Empty<Operand>();
+            }
+        }
+
+        public Operation(Instruction inst, StorageKind storageKind, Operand dest, params Operand[] sources) : this(sources)
+        {
+            Inst = inst;
+            StorageKind = storageKind;
+
+            if (dest != null)
+            {
+                dest.AsgOp = this;
+
+                _dests = new[] { dest };
+            }
+            else
+            {
+                _dests = Array.Empty<Operand>();
+            }
+        }
+
+        public Operation(Instruction inst, int index, Operand dest, params Operand[] sources) : this(inst, dest, sources)
+        {
+            Index = index;
+        }
+
+        public void AppendDests(Operand[] operands)
+        {
+            int startIndex = _dests.Length;
+
+            Array.Resize(ref _dests, startIndex + operands.Length);
+
+            for (int index = 0; index < operands.Length; index++)
+            {
+                Operand dest = operands[index];
+
+                if (dest != null && dest.Type == OperandType.LocalVariable)
+                {
+                    Debug.Assert(dest.AsgOp == null);
+                    dest.AsgOp = this;
+                }
+
+                _dests[startIndex + index] = dest;
+            }
+        }
+
+        public void AppendSources(Operand[] operands)
+        {
+            int startIndex = _sources.Length;
+
+            Array.Resize(ref _sources, startIndex + operands.Length);
+
+            for (int index = 0; index < operands.Length; index++)
+            {
+                Operand source = operands[index];
+
+                if (source.Type == OperandType.LocalVariable)
+                {
+                    source.UseOps.Add(this);
+                }
+
+                _sources[startIndex + index] = source;
+            }
+        }
+
+        public Operand GetDest(int index)
+        {
+            return _dests[index];
+        }
+
+        public Operand GetSource(int index)
+        {
+            return _sources[index];
+        }
+
+        public void SetDest(int index, Operand dest)
+        {
+            Operand oldDest = _dests[index];
+
+            if (oldDest != null && oldDest.Type == OperandType.LocalVariable)
+            {
+                oldDest.AsgOp = null;
+            }
+
+            if (dest != null && dest.Type == OperandType.LocalVariable)
+            {
+                dest.AsgOp = this;
+            }
+
+            _dests[index] = dest;
+        }
+
+        public void SetSource(int index, Operand source)
+        {
+            Operand oldSrc = _sources[index];
+
+            if (oldSrc != null && oldSrc.Type == OperandType.LocalVariable)
+            {
+                oldSrc.UseOps.Remove(this);
+            }
+
+            if (source != null && source.Type == OperandType.LocalVariable)
+            {
+                source.UseOps.Add(this);
+            }
+
+            _sources[index] = source;
+        }
+
+        public void InsertSource(int index, Operand source)
+        {
+            Operand[] newSources = new Operand[_sources.Length + 1];
+
+            Array.Copy(_sources, 0, newSources, 0, index);
+            Array.Copy(_sources, index, newSources, index + 1, _sources.Length - index);
+
+            newSources[index] = source;
+
+            _sources = newSources;
+        }
+
+        protected void RemoveSource(int index)
+        {
+            SetSource(index, null);
+
+            Operand[] newSources = new Operand[_sources.Length - 1];
+
+            Array.Copy(_sources, 0, newSources, 0, index);
+            Array.Copy(_sources, index + 1, newSources, index, _sources.Length - (index + 1));
+
+            _sources = newSources;
+        }
+
+        public void TurnIntoCopy(Operand source)
+        {
+            TurnInto(Instruction.Copy, source);
+        }
+
+        public void TurnInto(Instruction newInst, Operand source)
+        {
+            Inst = newInst;
+
+            foreach (Operand oldSrc in _sources)
+            {
+                if (oldSrc != null && oldSrc.Type == OperandType.LocalVariable)
+                {
+                    oldSrc.UseOps.Remove(this);
+                }
+            }
+
+            if (source.Type == OperandType.LocalVariable)
+            {
+                source.UseOps.Add(this);
+            }
+
+            _sources = new Operand[] { source };
+        }
+    }
+}

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/PhiNode.cs

@@ -0,0 +1,107 @@
+using System;
+using System.Collections.Generic;
+
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    class PhiNode : INode
+    {
+        private Operand _dest;
+
+        public Operand Dest
+        {
+            get => _dest;
+            set => _dest = AssignDest(value);
+        }
+
+        public int DestsCount => _dest != null ? 1 : 0;
+
+        private HashSet<BasicBlock> _blocks;
+
+        private class PhiSource
+        {
+            public BasicBlock Block   { get; }
+            public Operand    Operand { get; set; }
+
+            public PhiSource(BasicBlock block, Operand operand)
+            {
+                Block   = block;
+                Operand = operand;
+            }
+        }
+
+        private List<PhiSource> _sources;
+
+        public int SourcesCount => _sources.Count;
+
+        public PhiNode(Operand dest)
+        {
+            _blocks = new HashSet<BasicBlock>();
+
+            _sources = new List<PhiSource>();
+
+            dest.AsgOp = this;
+
+            Dest = dest;
+        }
+
+        private Operand AssignDest(Operand dest)
+        {
+            if (dest != null && dest.Type == OperandType.LocalVariable)
+            {
+                dest.AsgOp = this;
+            }
+
+            return dest;
+        }
+
+        public void AddSource(BasicBlock block, Operand operand)
+        {
+            if (_blocks.Add(block))
+            {
+                if (operand.Type == OperandType.LocalVariable)
+                {
+                    operand.UseOps.Add(this);
+                }
+
+                _sources.Add(new PhiSource(block, operand));
+            }
+        }
+
+        public Operand GetDest(int index)
+        {
+            if (index != 0)
+            {
+                throw new ArgumentOutOfRangeException(nameof(index));
+            }
+
+            return _dest;
+        }
+
+        public Operand GetSource(int index)
+        {
+            return _sources[index].Operand;
+        }
+
+        public BasicBlock GetBlock(int index)
+        {
+            return _sources[index].Block;
+        }
+
+        public void SetSource(int index, Operand source)
+        {
+            Operand oldSrc = _sources[index].Operand;
+
+            if (oldSrc != null && oldSrc.Type == OperandType.LocalVariable)
+            {
+                oldSrc.UseOps.Remove(this);
+            }
+
+            if (source.Type == OperandType.LocalVariable)
+            {
+                source.UseOps.Add(this);
+            }
+
+            _sources[index].Operand = source;
+        }
+    }
+}

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/StorageKind.cs

@@ -0,0 +1,39 @@
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    enum StorageKind
+    {
+        None,
+        Input,
+        InputPerPatch,
+        Output,
+        OutputPerPatch,
+        ConstantBuffer,
+        StorageBuffer,
+        LocalMemory,
+        SharedMemory,
+        GlobalMemory
+    }
+
+    static class StorageKindExtensions
+    {
+        public static bool IsInputOrOutput(this StorageKind storageKind)
+        {
+            return storageKind == StorageKind.Input ||
+                   storageKind == StorageKind.InputPerPatch ||
+                   storageKind == StorageKind.Output ||
+                   storageKind == StorageKind.OutputPerPatch;
+        }
+
+        public static bool IsOutput(this StorageKind storageKind)
+        {
+            return storageKind == StorageKind.Output ||
+                   storageKind == StorageKind.OutputPerPatch;
+        }
+
+        public static bool IsPerPatch(this StorageKind storageKind)
+        {
+            return storageKind == StorageKind.InputPerPatch ||
+                   storageKind == StorageKind.OutputPerPatch;
+        }
+    }
+}

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/TextureFlags.cs

@@ -0,0 +1,32 @@
+using System;
+
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    [Flags]
+    enum TextureFlags
+    {
+        None        = 0,
+        Bindless    = 1 << 0,
+        Gather      = 1 << 1,
+        Derivatives = 1 << 2,
+        IntCoords   = 1 << 3,
+        LodBias     = 1 << 4,
+        LodLevel    = 1 << 5,
+        Offset      = 1 << 6,
+        Offsets     = 1 << 7,
+        Coherent    = 1 << 8,
+
+        AtomicMask  = 15 << 16,
+
+        Add         = 0 << 16,
+        Minimum     = 1 << 16,
+        Maximum     = 2 << 16,
+        Increment   = 3 << 16,
+        Decrement   = 4 << 16,
+        BitwiseAnd  = 5 << 16,
+        BitwiseOr   = 6 << 16,
+        BitwiseXor  = 7 << 16,
+        Swap        = 8 << 16,
+        CAS         = 9 << 16
+    }
+}

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/TextureOperation.cs

@@ -0,0 +1,69 @@
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    class TextureOperation : Operation
+    {
+        public const int DefaultCbufSlot = -1;
+
+        public SamplerType Type { get; set; }
+        public TextureFormat Format { get; set; }
+        public TextureFlags Flags { get; private set; }
+
+        public int CbufSlot { get; private set; }
+        public int Handle { get; private set; }
+
+        public TextureOperation(
+            Instruction inst,
+            SamplerType type,
+            TextureFormat format,
+            TextureFlags flags,
+            int cbufSlot,
+            int handle,
+            int compIndex,
+            Operand[] dests,
+            Operand[] sources) : base(inst, compIndex, dests, sources)
+        {
+            Type = type;
+            Format = format;
+            Flags = flags;
+            CbufSlot = cbufSlot;
+            Handle = handle;
+        }
+
+        public TextureOperation(
+            Instruction inst,
+            SamplerType type,
+            TextureFormat format,
+            TextureFlags flags,
+            int handle,
+            int compIndex,
+            Operand[] dests,
+            Operand[] sources) : this(inst, type, format, flags, DefaultCbufSlot, handle, compIndex, dests, sources)
+        {
+        }
+
+        public void TurnIntoIndexed(int handle)
+        {
+            Type |= SamplerType.Indexed;
+            Flags &= ~TextureFlags.Bindless;
+            Handle = handle;
+        }
+
+        public void SetHandle(int handle, int cbufSlot = DefaultCbufSlot)
+        {
+            if ((Flags & TextureFlags.Bindless) != 0)
+            {
+                Flags &= ~TextureFlags.Bindless;
+
+                RemoveSource(0);
+            }
+
+            CbufSlot = cbufSlot;
+            Handle = handle;
+        }
+
+        public void SetLodLevelFlag()
+        {
+            Flags |= TextureFlags.LodLevel;
+        }
+    }
+}