573 lines
22 KiB
C#
573 lines
22 KiB
C#
using Ryujinx.Graphics.Shader.StructuredIr;
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using Ryujinx.Graphics.Shader.Translation;
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using Spv.Generator;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using static Spv.Specification;
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namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
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{
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using IrConsts = IntermediateRepresentation.IrConsts;
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using IrOperandType = IntermediateRepresentation.OperandType;
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partial class CodeGenContext : Module
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{
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private const uint SpirvVersionMajor = 1;
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private const uint SpirvVersionMinor = 3;
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private const uint SpirvVersionRevision = 0;
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private const uint SpirvVersionPacked = (SpirvVersionMajor << 16) | (SpirvVersionMinor << 8) | SpirvVersionRevision;
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private readonly StructuredProgramInfo _info;
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public ShaderConfig Config { get; }
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public int InputVertices { get; }
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public Dictionary<int, Instruction> UniformBuffers { get; } = new Dictionary<int, Instruction>();
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public Instruction SupportBuffer { get; set; }
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public Instruction UniformBuffersArray { get; set; }
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public Instruction StorageBuffersArray { get; set; }
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public Instruction LocalMemory { get; set; }
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public Instruction SharedMemory { get; set; }
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public Instruction InputsArray { get; set; }
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public Instruction OutputsArray { get; set; }
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public Dictionary<TextureMeta, SamplerType> SamplersTypes { get; } = new Dictionary<TextureMeta, SamplerType>();
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public Dictionary<TextureMeta, (Instruction, Instruction, Instruction)> Samplers { get; } = new Dictionary<TextureMeta, (Instruction, Instruction, Instruction)>();
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public Dictionary<TextureMeta, (Instruction, Instruction)> Images { get; } = new Dictionary<TextureMeta, (Instruction, Instruction)>();
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public Dictionary<int, Instruction> Inputs { get; } = new Dictionary<int, Instruction>();
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public Dictionary<int, Instruction> Outputs { get; } = new Dictionary<int, Instruction>();
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public Dictionary<int, Instruction> InputsPerPatch { get; } = new Dictionary<int, Instruction>();
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public Dictionary<int, Instruction> OutputsPerPatch { get; } = new Dictionary<int, Instruction>();
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public Instruction CoordTemp { get; set; }
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private readonly Dictionary<AstOperand, Instruction> _locals = new Dictionary<AstOperand, Instruction>();
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private readonly Dictionary<int, Instruction[]> _localForArgs = new Dictionary<int, Instruction[]>();
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private readonly Dictionary<int, Instruction> _funcArgs = new Dictionary<int, Instruction>();
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private readonly Dictionary<int, (StructuredFunction, Instruction)> _functions = new Dictionary<int, (StructuredFunction, Instruction)>();
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private class BlockState
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{
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private int _entryCount;
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private readonly List<Instruction> _labels = new List<Instruction>();
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public Instruction GetNextLabel(CodeGenContext context)
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{
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return GetLabel(context, _entryCount);
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}
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public Instruction GetNextLabelAutoIncrement(CodeGenContext context)
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{
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return GetLabel(context, _entryCount++);
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}
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public Instruction GetLabel(CodeGenContext context, int index)
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{
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while (index >= _labels.Count)
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{
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_labels.Add(context.Label());
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}
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return _labels[index];
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}
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}
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private readonly Dictionary<AstBlock, BlockState> _labels = new Dictionary<AstBlock, BlockState>();
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public Dictionary<AstBlock, (Instruction, Instruction)> LoopTargets { get; set; }
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public AstBlock CurrentBlock { get; private set; }
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public SpirvDelegates Delegates { get; }
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public CodeGenContext(
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StructuredProgramInfo info,
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ShaderConfig config,
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GeneratorPool<Instruction> instPool,
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GeneratorPool<LiteralInteger> integerPool) : base(SpirvVersionPacked, instPool, integerPool)
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{
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_info = info;
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Config = config;
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if (config.Stage == ShaderStage.Geometry)
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{
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InputTopology inPrimitive = config.GpuAccessor.QueryPrimitiveTopology();
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InputVertices = inPrimitive switch
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{
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InputTopology.Points => 1,
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InputTopology.Lines => 2,
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InputTopology.LinesAdjacency => 2,
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InputTopology.Triangles => 3,
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InputTopology.TrianglesAdjacency => 3,
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_ => throw new InvalidOperationException($"Invalid input topology \"{inPrimitive}\".")
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};
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}
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AddCapability(Capability.Shader);
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AddCapability(Capability.Float64);
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SetMemoryModel(AddressingModel.Logical, MemoryModel.GLSL450);
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Delegates = new SpirvDelegates(this);
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}
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public void StartFunction()
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{
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_locals.Clear();
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_localForArgs.Clear();
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_funcArgs.Clear();
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}
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public void EnterBlock(AstBlock block)
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{
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CurrentBlock = block;
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AddLabel(GetBlockStateLazy(block).GetNextLabelAutoIncrement(this));
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}
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public Instruction GetFirstLabel(AstBlock block)
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{
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return GetBlockStateLazy(block).GetLabel(this, 0);
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}
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public Instruction GetNextLabel(AstBlock block)
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{
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return GetBlockStateLazy(block).GetNextLabel(this);
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}
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private BlockState GetBlockStateLazy(AstBlock block)
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{
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if (!_labels.TryGetValue(block, out var blockState))
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{
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blockState = new BlockState();
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_labels.Add(block, blockState);
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}
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return blockState;
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}
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public Instruction NewBlock()
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{
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var label = Label();
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Branch(label);
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AddLabel(label);
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return label;
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}
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public Instruction[] GetMainInterface()
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{
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var mainInterface = new List<Instruction>();
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mainInterface.AddRange(Inputs.Values);
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mainInterface.AddRange(Outputs.Values);
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mainInterface.AddRange(InputsPerPatch.Values);
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mainInterface.AddRange(OutputsPerPatch.Values);
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if (InputsArray != null)
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{
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mainInterface.Add(InputsArray);
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}
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if (OutputsArray != null)
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{
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mainInterface.Add(OutputsArray);
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}
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return mainInterface.ToArray();
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}
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public void DeclareLocal(AstOperand local, Instruction spvLocal)
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{
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_locals.Add(local, spvLocal);
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}
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public void DeclareLocalForArgs(int funcIndex, Instruction[] spvLocals)
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{
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_localForArgs.Add(funcIndex, spvLocals);
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}
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public void DeclareArgument(int argIndex, Instruction spvLocal)
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{
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_funcArgs.Add(argIndex, spvLocal);
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}
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public void DeclareFunction(int funcIndex, StructuredFunction function, Instruction spvFunc)
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{
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_functions.Add(funcIndex, (function, spvFunc));
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}
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public Instruction GetFP32(IAstNode node)
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{
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return Get(AggregateType.FP32, node);
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}
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public Instruction GetFP64(IAstNode node)
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{
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return Get(AggregateType.FP64, node);
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}
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public Instruction GetS32(IAstNode node)
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{
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return Get(AggregateType.S32, node);
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}
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public Instruction GetU32(IAstNode node)
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{
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return Get(AggregateType.U32, node);
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}
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public Instruction Get(AggregateType type, IAstNode node)
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{
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if (node is AstOperation operation)
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{
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var opResult = Instructions.Generate(this, operation);
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return BitcastIfNeeded(type, opResult.Type, opResult.Value);
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}
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else if (node is AstOperand operand)
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{
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return operand.Type switch
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{
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IrOperandType.Argument => GetArgument(type, operand),
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IrOperandType.Attribute => GetAttribute(type, operand.Value & AttributeConsts.Mask, (operand.Value & AttributeConsts.LoadOutputMask) != 0),
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IrOperandType.AttributePerPatch => GetAttributePerPatch(type, operand.Value & AttributeConsts.Mask, (operand.Value & AttributeConsts.LoadOutputMask) != 0),
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IrOperandType.Constant => GetConstant(type, operand),
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IrOperandType.ConstantBuffer => GetConstantBuffer(type, operand),
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IrOperandType.LocalVariable => GetLocal(type, operand),
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IrOperandType.Undefined => GetUndefined(type),
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_ => throw new ArgumentException($"Invalid operand type \"{operand.Type}\".")
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};
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}
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throw new NotImplementedException(node.GetType().Name);
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}
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private Instruction GetUndefined(AggregateType type)
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{
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return type switch
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{
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AggregateType.Bool => ConstantFalse(TypeBool()),
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AggregateType.FP32 => Constant(TypeFP32(), 0f),
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AggregateType.FP64 => Constant(TypeFP64(), 0d),
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_ => Constant(GetType(type), 0)
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};
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}
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public Instruction GetAttributeElemPointer(int attr, bool isOutAttr, Instruction index, out AggregateType elemType)
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{
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var storageClass = isOutAttr ? StorageClass.Output : StorageClass.Input;
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var attrInfo = AttributeInfo.From(Config, attr, isOutAttr);
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int attrOffset = attrInfo.BaseValue;
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AggregateType type = attrInfo.Type;
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Instruction ioVariable, elemIndex;
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bool isUserAttr = attr >= AttributeConsts.UserAttributeBase && attr < AttributeConsts.UserAttributeEnd;
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if (isUserAttr &&
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((!isOutAttr && Config.UsedFeatures.HasFlag(FeatureFlags.IaIndexing)) ||
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(isOutAttr && Config.UsedFeatures.HasFlag(FeatureFlags.OaIndexing))))
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{
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elemType = AggregateType.FP32;
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ioVariable = isOutAttr ? OutputsArray : InputsArray;
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elemIndex = Constant(TypeU32(), attrInfo.GetInnermostIndex());
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var vecIndex = Constant(TypeU32(), (attr - AttributeConsts.UserAttributeBase) >> 4);
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if (AttributeInfo.IsArrayAttributeSpirv(Config.Stage, isOutAttr))
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{
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return AccessChain(TypePointer(storageClass, GetType(elemType)), ioVariable, index, vecIndex, elemIndex);
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}
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else
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{
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return AccessChain(TypePointer(storageClass, GetType(elemType)), ioVariable, vecIndex, elemIndex);
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}
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}
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bool isViewportInverse = attr == AttributeConsts.SupportBlockViewInverseX || attr == AttributeConsts.SupportBlockViewInverseY;
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if (isViewportInverse)
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{
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elemType = AggregateType.FP32;
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elemIndex = Constant(TypeU32(), (attr - AttributeConsts.SupportBlockViewInverseX) >> 2);
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return AccessChain(TypePointer(StorageClass.Uniform, TypeFP32()), SupportBuffer, Constant(TypeU32(), 2), elemIndex);
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}
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elemType = attrInfo.Type & AggregateType.ElementTypeMask;
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if (isUserAttr && Config.TransformFeedbackEnabled &&
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((isOutAttr && Config.LastInVertexPipeline) ||
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(!isOutAttr && Config.Stage == ShaderStage.Fragment)))
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{
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attrOffset = attr;
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type = elemType;
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}
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ioVariable = isOutAttr ? Outputs[attrOffset] : Inputs[attrOffset];
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bool isIndexed = AttributeInfo.IsArrayAttributeSpirv(Config.Stage, isOutAttr) && (!attrInfo.IsBuiltin || AttributeInfo.IsArrayBuiltIn(attr));
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if ((type & (AggregateType.Array | AggregateType.Vector)) == 0)
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{
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return isIndexed ? AccessChain(TypePointer(storageClass, GetType(elemType)), ioVariable, index) : ioVariable;
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}
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elemIndex = Constant(TypeU32(), attrInfo.GetInnermostIndex());
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if (isIndexed)
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{
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return AccessChain(TypePointer(storageClass, GetType(elemType)), ioVariable, index, elemIndex);
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}
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else
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{
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return AccessChain(TypePointer(storageClass, GetType(elemType)), ioVariable, elemIndex);
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}
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}
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public Instruction GetAttributeElemPointer(Instruction attrIndex, bool isOutAttr, Instruction index, out AggregateType elemType)
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{
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var storageClass = isOutAttr ? StorageClass.Output : StorageClass.Input;
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elemType = AggregateType.FP32;
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var ioVariable = isOutAttr ? OutputsArray : InputsArray;
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var vecIndex = ShiftRightLogical(TypeS32(), attrIndex, Constant(TypeS32(), 2));
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var elemIndex = BitwiseAnd(TypeS32(), attrIndex, Constant(TypeS32(), 3));
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if (AttributeInfo.IsArrayAttributeSpirv(Config.Stage, isOutAttr))
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{
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return AccessChain(TypePointer(storageClass, GetType(elemType)), ioVariable, index, vecIndex, elemIndex);
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}
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else
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{
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return AccessChain(TypePointer(storageClass, GetType(elemType)), ioVariable, vecIndex, elemIndex);
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}
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}
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public Instruction GetAttribute(AggregateType type, int attr, bool isOutAttr, Instruction index = null)
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{
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if (!AttributeInfo.Validate(Config, attr, isOutAttr: false))
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{
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return GetConstant(type, new AstOperand(IrOperandType.Constant, 0));
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}
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var elemPointer = GetAttributeElemPointer(attr, isOutAttr, index, out var elemType);
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var value = Load(GetType(elemType), elemPointer);
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if (Config.Stage == ShaderStage.Fragment)
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{
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if (attr == AttributeConsts.PositionX || attr == AttributeConsts.PositionY)
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{
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var pointerType = TypePointer(StorageClass.Uniform, TypeFP32());
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var fieldIndex = Constant(TypeU32(), 4);
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var scaleIndex = Constant(TypeU32(), 0);
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var scaleElemPointer = AccessChain(pointerType, SupportBuffer, fieldIndex, scaleIndex);
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var scale = Load(TypeFP32(), scaleElemPointer);
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value = FDiv(TypeFP32(), value, scale);
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}
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else if (attr == AttributeConsts.FrontFacing && Config.GpuAccessor.QueryHostHasFrontFacingBug())
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{
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// Workaround for what appears to be a bug on Intel compiler.
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var valueFloat = Select(TypeFP32(), value, Constant(TypeFP32(), 1f), Constant(TypeFP32(), 0f));
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var valueAsInt = Bitcast(TypeS32(), valueFloat);
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var valueNegated = SNegate(TypeS32(), valueAsInt);
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value = SLessThan(TypeBool(), valueNegated, Constant(TypeS32(), 0));
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}
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}
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return BitcastIfNeeded(type, elemType, value);
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}
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public Instruction GetAttributePerPatchElemPointer(int attr, bool isOutAttr, out AggregateType elemType)
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{
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var storageClass = isOutAttr ? StorageClass.Output : StorageClass.Input;
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var attrInfo = AttributeInfo.From(Config, attr, isOutAttr);
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int attrOffset = attrInfo.BaseValue;
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Instruction ioVariable;
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bool isUserAttr = attr >= AttributeConsts.UserAttributeBase && attr < AttributeConsts.UserAttributeEnd;
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elemType = attrInfo.Type & AggregateType.ElementTypeMask;
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ioVariable = isOutAttr ? OutputsPerPatch[attrOffset] : InputsPerPatch[attrOffset];
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if ((attrInfo.Type & (AggregateType.Array | AggregateType.Vector)) == 0)
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{
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return ioVariable;
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}
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var elemIndex = Constant(TypeU32(), attrInfo.GetInnermostIndex());
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return AccessChain(TypePointer(storageClass, GetType(elemType)), ioVariable, elemIndex);
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}
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public Instruction GetAttributePerPatch(AggregateType type, int attr, bool isOutAttr)
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{
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if (!AttributeInfo.Validate(Config, attr, isOutAttr: false))
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{
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return GetConstant(type, new AstOperand(IrOperandType.Constant, 0));
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}
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var elemPointer = GetAttributePerPatchElemPointer(attr, isOutAttr, out var elemType);
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return BitcastIfNeeded(type, elemType, Load(GetType(elemType), elemPointer));
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}
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public Instruction GetAttribute(AggregateType type, Instruction attr, bool isOutAttr, Instruction index = null)
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{
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var elemPointer = GetAttributeElemPointer(attr, isOutAttr, index, out var elemType);
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return BitcastIfNeeded(type, elemType, Load(GetType(elemType), elemPointer));
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}
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public Instruction GetConstant(AggregateType type, AstOperand operand)
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{
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return type switch
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{
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AggregateType.Bool => operand.Value != 0 ? ConstantTrue(TypeBool()) : ConstantFalse(TypeBool()),
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AggregateType.FP32 => Constant(TypeFP32(), BitConverter.Int32BitsToSingle(operand.Value)),
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AggregateType.FP64 => Constant(TypeFP64(), (double)BitConverter.Int32BitsToSingle(operand.Value)),
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AggregateType.S32 => Constant(TypeS32(), operand.Value),
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AggregateType.U32 => Constant(TypeU32(), (uint)operand.Value),
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_ => throw new ArgumentException($"Invalid type \"{type}\".")
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};
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}
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public Instruction GetConstantBuffer(AggregateType type, AstOperand operand)
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{
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var i1 = Constant(TypeS32(), 0);
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var i2 = Constant(TypeS32(), operand.CbufOffset >> 2);
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var i3 = Constant(TypeU32(), operand.CbufOffset & 3);
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Instruction elemPointer;
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if (UniformBuffersArray != null)
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{
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var ubVariable = UniformBuffersArray;
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var i0 = Constant(TypeS32(), operand.CbufSlot);
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elemPointer = AccessChain(TypePointer(StorageClass.Uniform, TypeFP32()), ubVariable, i0, i1, i2, i3);
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}
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else
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{
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var ubVariable = UniformBuffers[operand.CbufSlot];
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elemPointer = AccessChain(TypePointer(StorageClass.Uniform, TypeFP32()), ubVariable, i1, i2, i3);
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}
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return BitcastIfNeeded(type, AggregateType.FP32, Load(TypeFP32(), elemPointer));
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}
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public Instruction GetLocalPointer(AstOperand local)
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{
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return _locals[local];
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}
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public Instruction[] GetLocalForArgsPointers(int funcIndex)
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{
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return _localForArgs[funcIndex];
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}
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public Instruction GetArgumentPointer(AstOperand funcArg)
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{
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return _funcArgs[funcArg.Value];
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}
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public Instruction GetLocal(AggregateType dstType, AstOperand local)
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{
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var srcType = local.VarType.Convert();
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return BitcastIfNeeded(dstType, srcType, Load(GetType(srcType), GetLocalPointer(local)));
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}
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public Instruction GetArgument(AggregateType dstType, AstOperand funcArg)
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{
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var srcType = funcArg.VarType.Convert();
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return BitcastIfNeeded(dstType, srcType, Load(GetType(srcType), GetArgumentPointer(funcArg)));
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}
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public (StructuredFunction, Instruction) GetFunction(int funcIndex)
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{
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return _functions[funcIndex];
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}
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public TransformFeedbackOutput GetTransformFeedbackOutput(int location, int component)
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{
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int index = (AttributeConsts.UserAttributeBase / 4) + location * 4 + component;
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return _info.TransformFeedbackOutputs[index];
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}
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public TransformFeedbackOutput GetTransformFeedbackOutput(int location)
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{
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int index = location / 4;
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return _info.TransformFeedbackOutputs[index];
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}
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public Instruction GetType(AggregateType type, int length = 1)
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{
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if (type.HasFlag(AggregateType.Array))
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{
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return TypeArray(GetType(type & ~AggregateType.Array), Constant(TypeU32(), length));
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}
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|
else if (type.HasFlag(AggregateType.Vector))
|
|
{
|
|
return TypeVector(GetType(type & ~AggregateType.Vector), length);
|
|
}
|
|
|
|
return type switch
|
|
{
|
|
AggregateType.Void => TypeVoid(),
|
|
AggregateType.Bool => TypeBool(),
|
|
AggregateType.FP32 => TypeFP32(),
|
|
AggregateType.FP64 => TypeFP64(),
|
|
AggregateType.S32 => TypeS32(),
|
|
AggregateType.U32 => TypeU32(),
|
|
_ => throw new ArgumentException($"Invalid attribute type \"{type}\".")
|
|
};
|
|
}
|
|
|
|
public Instruction BitcastIfNeeded(AggregateType dstType, AggregateType srcType, Instruction value)
|
|
{
|
|
if (dstType == srcType)
|
|
{
|
|
return value;
|
|
}
|
|
|
|
if (dstType == AggregateType.Bool)
|
|
{
|
|
return INotEqual(TypeBool(), BitcastIfNeeded(AggregateType.S32, srcType, value), Constant(TypeS32(), 0));
|
|
}
|
|
else if (srcType == AggregateType.Bool)
|
|
{
|
|
var intTrue = Constant(TypeS32(), IrConsts.True);
|
|
var intFalse = Constant(TypeS32(), IrConsts.False);
|
|
|
|
return BitcastIfNeeded(dstType, AggregateType.S32, Select(TypeS32(), value, intTrue, intFalse));
|
|
}
|
|
else
|
|
{
|
|
return Bitcast(GetType(dstType, 1), value);
|
|
}
|
|
}
|
|
|
|
public Instruction TypeS32()
|
|
{
|
|
return TypeInt(32, true);
|
|
}
|
|
|
|
public Instruction TypeU32()
|
|
{
|
|
return TypeInt(32, false);
|
|
}
|
|
|
|
public Instruction TypeFP32()
|
|
{
|
|
return TypeFloat(32);
|
|
}
|
|
|
|
public Instruction TypeFP64()
|
|
{
|
|
return TypeFloat(64);
|
|
}
|
|
}
|
|
}
|