using Ryujinx.Graphics.Shader.IntermediateRepresentation; using Ryujinx.Graphics.Shader.StructuredIr; using Ryujinx.Graphics.Shader.Translation; using System; using System.Collections.Generic; using System.Diagnostics; using System.Linq; using System.Numerics; using static Spv.Specification; namespace Ryujinx.Graphics.Shader.CodeGen.Spirv { using SpvInstruction = Spv.Generator.Instruction; using SpvLiteralInteger = Spv.Generator.LiteralInteger; static class Instructions { private const MemorySemanticsMask DefaultMemorySemantics = MemorySemanticsMask.ImageMemory | MemorySemanticsMask.AtomicCounterMemory | MemorySemanticsMask.WorkgroupMemory | MemorySemanticsMask.UniformMemory | MemorySemanticsMask.AcquireRelease; private static readonly Func[] InstTable; static Instructions() { InstTable = new Func[(int)Instruction.Count]; Add(Instruction.Absolute, GenerateAbsolute); Add(Instruction.Add, GenerateAdd); Add(Instruction.AtomicAdd, GenerateAtomicAdd); Add(Instruction.AtomicAnd, GenerateAtomicAnd); Add(Instruction.AtomicCompareAndSwap, GenerateAtomicCompareAndSwap); Add(Instruction.AtomicMinS32, GenerateAtomicMinS32); Add(Instruction.AtomicMinU32, GenerateAtomicMinU32); Add(Instruction.AtomicMaxS32, GenerateAtomicMaxS32); Add(Instruction.AtomicMaxU32, GenerateAtomicMaxU32); Add(Instruction.AtomicOr, GenerateAtomicOr); Add(Instruction.AtomicSwap, GenerateAtomicSwap); Add(Instruction.AtomicXor, GenerateAtomicXor); Add(Instruction.Ballot, GenerateBallot); Add(Instruction.Barrier, GenerateBarrier); Add(Instruction.BitCount, GenerateBitCount); Add(Instruction.BitfieldExtractS32, GenerateBitfieldExtractS32); Add(Instruction.BitfieldExtractU32, GenerateBitfieldExtractU32); Add(Instruction.BitfieldInsert, GenerateBitfieldInsert); Add(Instruction.BitfieldReverse, GenerateBitfieldReverse); Add(Instruction.BitwiseAnd, GenerateBitwiseAnd); Add(Instruction.BitwiseExclusiveOr, GenerateBitwiseExclusiveOr); Add(Instruction.BitwiseNot, GenerateBitwiseNot); Add(Instruction.BitwiseOr, GenerateBitwiseOr); Add(Instruction.Call, GenerateCall); Add(Instruction.Ceiling, GenerateCeiling); Add(Instruction.Clamp, GenerateClamp); Add(Instruction.ClampU32, GenerateClampU32); Add(Instruction.Comment, GenerateComment); Add(Instruction.CompareEqual, GenerateCompareEqual); Add(Instruction.CompareGreater, GenerateCompareGreater); Add(Instruction.CompareGreaterOrEqual, GenerateCompareGreaterOrEqual); Add(Instruction.CompareGreaterOrEqualU32, GenerateCompareGreaterOrEqualU32); Add(Instruction.CompareGreaterU32, GenerateCompareGreaterU32); Add(Instruction.CompareLess, GenerateCompareLess); Add(Instruction.CompareLessOrEqual, GenerateCompareLessOrEqual); Add(Instruction.CompareLessOrEqualU32, GenerateCompareLessOrEqualU32); Add(Instruction.CompareLessU32, GenerateCompareLessU32); Add(Instruction.CompareNotEqual, GenerateCompareNotEqual); Add(Instruction.ConditionalSelect, GenerateConditionalSelect); Add(Instruction.ConvertFP32ToFP64, GenerateConvertFP32ToFP64); Add(Instruction.ConvertFP32ToS32, GenerateConvertFP32ToS32); Add(Instruction.ConvertFP32ToU32, GenerateConvertFP32ToU32); Add(Instruction.ConvertFP64ToFP32, GenerateConvertFP64ToFP32); Add(Instruction.ConvertFP64ToS32, GenerateConvertFP64ToS32); Add(Instruction.ConvertFP64ToU32, GenerateConvertFP64ToU32); Add(Instruction.ConvertS32ToFP32, GenerateConvertS32ToFP32); Add(Instruction.ConvertS32ToFP64, GenerateConvertS32ToFP64); Add(Instruction.ConvertU32ToFP32, GenerateConvertU32ToFP32); Add(Instruction.ConvertU32ToFP64, GenerateConvertU32ToFP64); Add(Instruction.Cosine, GenerateCosine); Add(Instruction.Ddx, GenerateDdx); Add(Instruction.Ddy, GenerateDdy); Add(Instruction.Discard, GenerateDiscard); Add(Instruction.Divide, GenerateDivide); Add(Instruction.EmitVertex, GenerateEmitVertex); Add(Instruction.EndPrimitive, GenerateEndPrimitive); Add(Instruction.ExponentB2, GenerateExponentB2); Add(Instruction.FSIBegin, GenerateFSIBegin); Add(Instruction.FSIEnd, GenerateFSIEnd); Add(Instruction.FindLSB, GenerateFindLSB); Add(Instruction.FindMSBS32, GenerateFindMSBS32); Add(Instruction.FindMSBU32, GenerateFindMSBU32); Add(Instruction.Floor, GenerateFloor); Add(Instruction.FusedMultiplyAdd, GenerateFusedMultiplyAdd); Add(Instruction.GroupMemoryBarrier, GenerateGroupMemoryBarrier); Add(Instruction.ImageAtomic, GenerateImageAtomic); Add(Instruction.ImageLoad, GenerateImageLoad); Add(Instruction.ImageStore, GenerateImageStore); Add(Instruction.IsNan, GenerateIsNan); Add(Instruction.Load, GenerateLoad); Add(Instruction.LoadConstant, GenerateLoadConstant); Add(Instruction.LoadLocal, GenerateLoadLocal); Add(Instruction.LoadShared, GenerateLoadShared); Add(Instruction.LoadStorage, GenerateLoadStorage); Add(Instruction.Lod, GenerateLod); Add(Instruction.LogarithmB2, GenerateLogarithmB2); Add(Instruction.LogicalAnd, GenerateLogicalAnd); Add(Instruction.LogicalExclusiveOr, GenerateLogicalExclusiveOr); Add(Instruction.LogicalNot, GenerateLogicalNot); Add(Instruction.LogicalOr, GenerateLogicalOr); Add(Instruction.LoopBreak, GenerateLoopBreak); Add(Instruction.LoopContinue, GenerateLoopContinue); Add(Instruction.Maximum, GenerateMaximum); Add(Instruction.MaximumU32, GenerateMaximumU32); Add(Instruction.MemoryBarrier, GenerateMemoryBarrier); Add(Instruction.Minimum, GenerateMinimum); Add(Instruction.MinimumU32, GenerateMinimumU32); Add(Instruction.Multiply, GenerateMultiply); Add(Instruction.MultiplyHighS32, GenerateMultiplyHighS32); Add(Instruction.MultiplyHighU32, GenerateMultiplyHighU32); Add(Instruction.Negate, GenerateNegate); Add(Instruction.PackDouble2x32, GeneratePackDouble2x32); Add(Instruction.PackHalf2x16, GeneratePackHalf2x16); Add(Instruction.ReciprocalSquareRoot, GenerateReciprocalSquareRoot); Add(Instruction.Return, GenerateReturn); Add(Instruction.Round, GenerateRound); Add(Instruction.ShiftLeft, GenerateShiftLeft); Add(Instruction.ShiftRightS32, GenerateShiftRightS32); Add(Instruction.ShiftRightU32, GenerateShiftRightU32); Add(Instruction.Shuffle, GenerateShuffle); Add(Instruction.ShuffleDown, GenerateShuffleDown); Add(Instruction.ShuffleUp, GenerateShuffleUp); Add(Instruction.ShuffleXor, GenerateShuffleXor); Add(Instruction.Sine, GenerateSine); Add(Instruction.SquareRoot, GenerateSquareRoot); Add(Instruction.Store, GenerateStore); Add(Instruction.StoreLocal, GenerateStoreLocal); Add(Instruction.StoreShared, GenerateStoreShared); Add(Instruction.StoreShared16, GenerateStoreShared16); Add(Instruction.StoreShared8, GenerateStoreShared8); Add(Instruction.StoreStorage, GenerateStoreStorage); Add(Instruction.StoreStorage16, GenerateStoreStorage16); Add(Instruction.StoreStorage8, GenerateStoreStorage8); Add(Instruction.Subtract, GenerateSubtract); Add(Instruction.SwizzleAdd, GenerateSwizzleAdd); Add(Instruction.TextureSample, GenerateTextureSample); Add(Instruction.TextureSize, GenerateTextureSize); Add(Instruction.Truncate, GenerateTruncate); Add(Instruction.UnpackDouble2x32, GenerateUnpackDouble2x32); Add(Instruction.UnpackHalf2x16, GenerateUnpackHalf2x16); Add(Instruction.VectorExtract, GenerateVectorExtract); Add(Instruction.VoteAll, GenerateVoteAll); Add(Instruction.VoteAllEqual, GenerateVoteAllEqual); Add(Instruction.VoteAny, GenerateVoteAny); } private static void Add(Instruction inst, Func handler) { InstTable[(int)(inst & Instruction.Mask)] = handler; } public static OperationResult Generate(CodeGenContext context, AstOperation operation) { var handler = InstTable[(int)(operation.Inst & Instruction.Mask)]; if (handler != null) { return handler(context, operation); } else { throw new NotImplementedException(operation.Inst.ToString()); } } private static OperationResult GenerateAbsolute(CodeGenContext context, AstOperation operation) { return GenerateUnary(context, operation, context.Delegates.GlslFAbs, context.Delegates.GlslSAbs); } private static OperationResult GenerateAdd(CodeGenContext context, AstOperation operation) { return GenerateBinary(context, operation, context.Delegates.FAdd, context.Delegates.IAdd); } private static OperationResult GenerateAtomicAdd(CodeGenContext context, AstOperation operation) { return GenerateAtomicMemoryBinary(context, operation, context.Delegates.AtomicIAdd); } private static OperationResult GenerateAtomicAnd(CodeGenContext context, AstOperation operation) { return GenerateAtomicMemoryBinary(context, operation, context.Delegates.AtomicAnd); } private static OperationResult GenerateAtomicCompareAndSwap(CodeGenContext context, AstOperation operation) { return GenerateAtomicMemoryCas(context, operation); } private static OperationResult GenerateAtomicMinS32(CodeGenContext context, AstOperation operation) { return GenerateAtomicMemoryBinary(context, operation, context.Delegates.AtomicSMin); } private static OperationResult GenerateAtomicMinU32(CodeGenContext context, AstOperation operation) { return GenerateAtomicMemoryBinary(context, operation, context.Delegates.AtomicUMin); } private static OperationResult GenerateAtomicMaxS32(CodeGenContext context, AstOperation operation) { return GenerateAtomicMemoryBinary(context, operation, context.Delegates.AtomicSMax); } private static OperationResult GenerateAtomicMaxU32(CodeGenContext context, AstOperation operation) { return GenerateAtomicMemoryBinary(context, operation, context.Delegates.AtomicUMax); } private static OperationResult GenerateAtomicOr(CodeGenContext context, AstOperation operation) { return GenerateAtomicMemoryBinary(context, operation, context.Delegates.AtomicOr); } private static OperationResult GenerateAtomicSwap(CodeGenContext context, AstOperation operation) { return GenerateAtomicMemoryBinary(context, operation, context.Delegates.AtomicExchange); } private static OperationResult GenerateAtomicXor(CodeGenContext context, AstOperation operation) { return GenerateAtomicMemoryBinary(context, operation, context.Delegates.AtomicXor); } private static OperationResult GenerateBallot(CodeGenContext context, AstOperation operation) { var source = operation.GetSource(0); var uvec4Type = context.TypeVector(context.TypeU32(), 4); var execution = context.Constant(context.TypeU32(), Scope.Subgroup); var maskVector = context.GroupNonUniformBallot(uvec4Type, execution, context.Get(AggregateType.Bool, source)); var mask = context.CompositeExtract(context.TypeU32(), maskVector, (SpvLiteralInteger)0); return new OperationResult(AggregateType.U32, mask); } private static OperationResult GenerateBarrier(CodeGenContext context, AstOperation operation) { context.ControlBarrier( context.Constant(context.TypeU32(), Scope.Workgroup), context.Constant(context.TypeU32(), Scope.Workgroup), context.Constant(context.TypeU32(), MemorySemanticsMask.WorkgroupMemory | MemorySemanticsMask.AcquireRelease)); return OperationResult.Invalid; } private static OperationResult GenerateBitCount(CodeGenContext context, AstOperation operation) { return GenerateUnaryS32(context, operation, context.Delegates.BitCount); } private static OperationResult GenerateBitfieldExtractS32(CodeGenContext context, AstOperation operation) { return GenerateBitfieldExtractS32(context, operation, context.Delegates.BitFieldSExtract); } private static OperationResult GenerateBitfieldExtractU32(CodeGenContext context, AstOperation operation) { return GenerateTernaryU32(context, operation, context.Delegates.BitFieldUExtract); } private static OperationResult GenerateBitfieldInsert(CodeGenContext context, AstOperation operation) { return GenerateBitfieldInsert(context, operation, context.Delegates.BitFieldInsert); } private static OperationResult GenerateBitfieldReverse(CodeGenContext context, AstOperation operation) { return GenerateUnaryS32(context, operation, context.Delegates.BitReverse); } private static OperationResult GenerateBitwiseAnd(CodeGenContext context, AstOperation operation) { return GenerateBinaryS32(context, operation, context.Delegates.BitwiseAnd); } private static OperationResult GenerateBitwiseExclusiveOr(CodeGenContext context, AstOperation operation) { return GenerateBinaryS32(context, operation, context.Delegates.BitwiseXor); } private static OperationResult GenerateBitwiseNot(CodeGenContext context, AstOperation operation) { return GenerateUnaryS32(context, operation, context.Delegates.Not); } private static OperationResult GenerateBitwiseOr(CodeGenContext context, AstOperation operation) { return GenerateBinaryS32(context, operation, context.Delegates.BitwiseOr); } private static OperationResult GenerateCall(CodeGenContext context, AstOperation operation) { AstOperand funcId = (AstOperand)operation.GetSource(0); Debug.Assert(funcId.Type == OperandType.Constant); (var function, var spvFunc) = context.GetFunction(funcId.Value); var args = new SpvInstruction[operation.SourcesCount - 1]; var spvLocals = context.GetLocalForArgsPointers(funcId.Value); for (int i = 0; i < args.Length; i++) { var operand = (AstOperand)operation.GetSource(i + 1); if (i >= function.InArguments.Length) { args[i] = context.GetLocalPointer(operand); } else { var type = function.GetArgumentType(i); var value = context.Get(type, operand); var spvLocal = spvLocals[i]; context.Store(spvLocal, value); args[i] = spvLocal; } } var retType = function.ReturnType; var result = context.FunctionCall(context.GetType(retType), spvFunc, args); return new OperationResult(retType, result); } private static OperationResult GenerateCeiling(CodeGenContext context, AstOperation operation) { return GenerateUnary(context, operation, context.Delegates.GlslCeil, null); } private static OperationResult GenerateClamp(CodeGenContext context, AstOperation operation) { return GenerateTernary(context, operation, context.Delegates.GlslFClamp, context.Delegates.GlslSClamp); } private static OperationResult GenerateClampU32(CodeGenContext context, AstOperation operation) { return GenerateTernaryU32(context, operation, context.Delegates.GlslUClamp); } private static OperationResult GenerateComment(CodeGenContext context, AstOperation operation) { return OperationResult.Invalid; } private static OperationResult GenerateCompareEqual(CodeGenContext context, AstOperation operation) { return GenerateCompare(context, operation, context.Delegates.FOrdEqual, context.Delegates.IEqual); } private static OperationResult GenerateCompareGreater(CodeGenContext context, AstOperation operation) { return GenerateCompare(context, operation, context.Delegates.FOrdGreaterThan, context.Delegates.SGreaterThan); } private static OperationResult GenerateCompareGreaterOrEqual(CodeGenContext context, AstOperation operation) { return GenerateCompare(context, operation, context.Delegates.FOrdGreaterThanEqual, context.Delegates.SGreaterThanEqual); } private static OperationResult GenerateCompareGreaterOrEqualU32(CodeGenContext context, AstOperation operation) { return GenerateCompareU32(context, operation, context.Delegates.UGreaterThanEqual); } private static OperationResult GenerateCompareGreaterU32(CodeGenContext context, AstOperation operation) { return GenerateCompareU32(context, operation, context.Delegates.UGreaterThan); } private static OperationResult GenerateCompareLess(CodeGenContext context, AstOperation operation) { return GenerateCompare(context, operation, context.Delegates.FOrdLessThan, context.Delegates.SLessThan); } private static OperationResult GenerateCompareLessOrEqual(CodeGenContext context, AstOperation operation) { return GenerateCompare(context, operation, context.Delegates.FOrdLessThanEqual, context.Delegates.SLessThanEqual); } private static OperationResult GenerateCompareLessOrEqualU32(CodeGenContext context, AstOperation operation) { return GenerateCompareU32(context, operation, context.Delegates.ULessThanEqual); } private static OperationResult GenerateCompareLessU32(CodeGenContext context, AstOperation operation) { return GenerateCompareU32(context, operation, context.Delegates.ULessThan); } private static OperationResult GenerateCompareNotEqual(CodeGenContext context, AstOperation operation) { return GenerateCompare(context, operation, context.Delegates.FOrdNotEqual, context.Delegates.INotEqual); } private static OperationResult GenerateConditionalSelect(CodeGenContext context, AstOperation operation) { var src1 = operation.GetSource(0); var src2 = operation.GetSource(1); var src3 = operation.GetSource(2); var cond = context.Get(AggregateType.Bool, src1); if (operation.Inst.HasFlag(Instruction.FP64)) { return new OperationResult(AggregateType.FP64, context.Select(context.TypeFP64(), cond, context.GetFP64(src2), context.GetFP64(src3))); } else if (operation.Inst.HasFlag(Instruction.FP32)) { return new OperationResult(AggregateType.FP32, context.Select(context.TypeFP32(), cond, context.GetFP32(src2), context.GetFP32(src3))); } else { return new OperationResult(AggregateType.S32, context.Select(context.TypeS32(), cond, context.GetS32(src2), context.GetS32(src3))); } } private static OperationResult GenerateConvertFP32ToFP64(CodeGenContext context, AstOperation operation) { var source = operation.GetSource(0); return new OperationResult(AggregateType.FP64, context.FConvert(context.TypeFP64(), context.GetFP32(source))); } private static OperationResult GenerateConvertFP32ToS32(CodeGenContext context, AstOperation operation) { var source = operation.GetSource(0); return new OperationResult(AggregateType.S32, context.ConvertFToS(context.TypeS32(), context.GetFP32(source))); } private static OperationResult GenerateConvertFP32ToU32(CodeGenContext context, AstOperation operation) { var source = operation.GetSource(0); return new OperationResult(AggregateType.U32, context.ConvertFToU(context.TypeU32(), context.GetFP32(source))); } private static OperationResult GenerateConvertFP64ToFP32(CodeGenContext context, AstOperation operation) { var source = operation.GetSource(0); return new OperationResult(AggregateType.FP32, context.FConvert(context.TypeFP32(), context.GetFP64(source))); } private static OperationResult GenerateConvertFP64ToS32(CodeGenContext context, AstOperation operation) { var source = operation.GetSource(0); return new OperationResult(AggregateType.S32, context.ConvertFToS(context.TypeS32(), context.GetFP64(source))); } private static OperationResult GenerateConvertFP64ToU32(CodeGenContext context, AstOperation operation) { var source = operation.GetSource(0); return new OperationResult(AggregateType.U32, context.ConvertFToU(context.TypeU32(), context.GetFP64(source))); } private static OperationResult GenerateConvertS32ToFP32(CodeGenContext context, AstOperation operation) { var source = operation.GetSource(0); return new OperationResult(AggregateType.FP32, context.ConvertSToF(context.TypeFP32(), context.GetS32(source))); } private static OperationResult GenerateConvertS32ToFP64(CodeGenContext context, AstOperation operation) { var source = operation.GetSource(0); return new OperationResult(AggregateType.FP64, context.ConvertSToF(context.TypeFP64(), context.GetS32(source))); } private static OperationResult GenerateConvertU32ToFP32(CodeGenContext context, AstOperation operation) { var source = operation.GetSource(0); return new OperationResult(AggregateType.FP32, context.ConvertUToF(context.TypeFP32(), context.GetU32(source))); } private static OperationResult GenerateConvertU32ToFP64(CodeGenContext context, AstOperation operation) { var source = operation.GetSource(0); return new OperationResult(AggregateType.FP64, context.ConvertUToF(context.TypeFP64(), context.GetU32(source))); } private static OperationResult GenerateCosine(CodeGenContext context, AstOperation operation) { return GenerateUnary(context, operation, context.Delegates.GlslCos, null); } private static OperationResult GenerateDdx(CodeGenContext context, AstOperation operation) { return GenerateUnaryFP32(context, operation, context.Delegates.DPdx); } private static OperationResult GenerateDdy(CodeGenContext context, AstOperation operation) { return GenerateUnaryFP32(context, operation, context.Delegates.DPdy); } private static OperationResult GenerateDiscard(CodeGenContext context, AstOperation operation) { context.Kill(); return OperationResult.Invalid; } private static OperationResult GenerateDivide(CodeGenContext context, AstOperation operation) { return GenerateBinary(context, operation, context.Delegates.FDiv, context.Delegates.SDiv); } private static OperationResult GenerateEmitVertex(CodeGenContext context, AstOperation operation) { context.EmitVertex(); return OperationResult.Invalid; } private static OperationResult GenerateEndPrimitive(CodeGenContext context, AstOperation operation) { context.EndPrimitive(); return OperationResult.Invalid; } private static OperationResult GenerateExponentB2(CodeGenContext context, AstOperation operation) { return GenerateUnary(context, operation, context.Delegates.GlslExp2, null); } private static OperationResult GenerateFSIBegin(CodeGenContext context, AstOperation operation) { if (context.Config.GpuAccessor.QueryHostSupportsFragmentShaderInterlock()) { context.BeginInvocationInterlockEXT(); } return OperationResult.Invalid; } private static OperationResult GenerateFSIEnd(CodeGenContext context, AstOperation operation) { if (context.Config.GpuAccessor.QueryHostSupportsFragmentShaderInterlock()) { context.EndInvocationInterlockEXT(); } return OperationResult.Invalid; } private static OperationResult GenerateFindLSB(CodeGenContext context, AstOperation operation) { var source = context.GetU32(operation.GetSource(0)); return new OperationResult(AggregateType.U32, context.GlslFindILsb(context.TypeU32(), source)); } private static OperationResult GenerateFindMSBS32(CodeGenContext context, AstOperation operation) { var source = context.GetS32(operation.GetSource(0)); return new OperationResult(AggregateType.U32, context.GlslFindSMsb(context.TypeU32(), source)); } private static OperationResult GenerateFindMSBU32(CodeGenContext context, AstOperation operation) { var source = context.GetU32(operation.GetSource(0)); return new OperationResult(AggregateType.U32, context.GlslFindUMsb(context.TypeU32(), source)); } private static OperationResult GenerateFloor(CodeGenContext context, AstOperation operation) { return GenerateUnary(context, operation, context.Delegates.GlslFloor, null); } private static OperationResult GenerateFusedMultiplyAdd(CodeGenContext context, AstOperation operation) { return GenerateTernary(context, operation, context.Delegates.GlslFma, null); } private static OperationResult GenerateGroupMemoryBarrier(CodeGenContext context, AstOperation operation) { context.MemoryBarrier(context.Constant(context.TypeU32(), Scope.Workgroup), context.Constant(context.TypeU32(), DefaultMemorySemantics)); return OperationResult.Invalid; } private static OperationResult GenerateImageAtomic(CodeGenContext context, AstOperation operation) { AstTextureOperation texOp = (AstTextureOperation)operation; bool isBindless = (texOp.Flags & TextureFlags.Bindless) != 0; var componentType = texOp.Format.GetComponentType(); // TODO: Bindless texture support. For now we just return 0/do nothing. if (isBindless) { return new OperationResult(componentType, componentType switch { AggregateType.S32 => context.Constant(context.TypeS32(), 0), AggregateType.U32 => context.Constant(context.TypeU32(), 0u), _ => context.Constant(context.TypeFP32(), 0f), }); } bool isArray = (texOp.Type & SamplerType.Array) != 0; bool isIndexed = (texOp.Type & SamplerType.Indexed) != 0; int srcIndex = isBindless ? 1 : 0; SpvInstruction Src(AggregateType type) { return context.Get(type, texOp.GetSource(srcIndex++)); } SpvInstruction index = null; if (isIndexed) { index = Src(AggregateType.S32); } int coordsCount = texOp.Type.GetDimensions(); int pCount = coordsCount + (isArray ? 1 : 0); SpvInstruction pCoords; if (pCount > 1) { SpvInstruction[] elems = new SpvInstruction[pCount]; for (int i = 0; i < pCount; i++) { elems[i] = Src(AggregateType.S32); } var vectorType = context.TypeVector(context.TypeS32(), pCount); pCoords = context.CompositeConstruct(vectorType, elems); } else { pCoords = Src(AggregateType.S32); } SpvInstruction value = Src(componentType); (var imageType, var imageVariable) = context.Images[new TextureMeta(texOp.CbufSlot, texOp.Handle, texOp.Format)]; var image = context.Load(imageType, imageVariable); SpvInstruction resultType = context.GetType(componentType); SpvInstruction imagePointerType = context.TypePointer(StorageClass.Image, resultType); var pointer = context.ImageTexelPointer(imagePointerType, imageVariable, pCoords, context.Constant(context.TypeU32(), 0)); var one = context.Constant(context.TypeU32(), 1); var zero = context.Constant(context.TypeU32(), 0); var result = (texOp.Flags & TextureFlags.AtomicMask) switch { TextureFlags.Add => context.AtomicIAdd(resultType, pointer, one, zero, value), TextureFlags.Minimum => componentType == AggregateType.S32 ? context.AtomicSMin(resultType, pointer, one, zero, value) : context.AtomicUMin(resultType, pointer, one, zero, value), TextureFlags.Maximum => componentType == AggregateType.S32 ? context.AtomicSMax(resultType, pointer, one, zero, value) : context.AtomicUMax(resultType, pointer, one, zero, value), TextureFlags.Increment => context.AtomicIIncrement(resultType, pointer, one, zero), TextureFlags.Decrement => context.AtomicIDecrement(resultType, pointer, one, zero), TextureFlags.BitwiseAnd => context.AtomicAnd(resultType, pointer, one, zero, value), TextureFlags.BitwiseOr => context.AtomicOr(resultType, pointer, one, zero, value), TextureFlags.BitwiseXor => context.AtomicXor(resultType, pointer, one, zero, value), TextureFlags.Swap => context.AtomicExchange(resultType, pointer, one, zero, value), TextureFlags.CAS => context.AtomicCompareExchange(resultType, pointer, one, zero, zero, Src(componentType), value), _ => context.AtomicIAdd(resultType, pointer, one, zero, value), }; return new OperationResult(componentType, result); } private static OperationResult GenerateImageLoad(CodeGenContext context, AstOperation operation) { AstTextureOperation texOp = (AstTextureOperation)operation; bool isBindless = (texOp.Flags & TextureFlags.Bindless) != 0; var componentType = texOp.Format.GetComponentType(); // TODO: Bindless texture support. For now we just return 0/do nothing. if (isBindless) { return GetZeroOperationResult(context, texOp, componentType, isVector: true); } bool isArray = (texOp.Type & SamplerType.Array) != 0; bool isIndexed = (texOp.Type & SamplerType.Indexed) != 0; int srcIndex = isBindless ? 1 : 0; SpvInstruction Src(AggregateType type) { return context.Get(type, texOp.GetSource(srcIndex++)); } SpvInstruction index = null; if (isIndexed) { index = Src(AggregateType.S32); } int coordsCount = texOp.Type.GetDimensions(); int pCount = coordsCount + (isArray ? 1 : 0); SpvInstruction pCoords; if (pCount > 1) { SpvInstruction[] elems = new SpvInstruction[pCount]; for (int i = 0; i < pCount; i++) { elems[i] = Src(AggregateType.S32); } var vectorType = context.TypeVector(context.TypeS32(), pCount); pCoords = context.CompositeConstruct(vectorType, elems); } else { pCoords = Src(AggregateType.S32); } pCoords = ScalingHelpers.ApplyScaling(context, texOp, pCoords, intCoords: true, isBindless, isIndexed, isArray, pCount); (var imageType, var imageVariable) = context.Images[new TextureMeta(texOp.CbufSlot, texOp.Handle, texOp.Format)]; var image = context.Load(imageType, imageVariable); var imageComponentType = context.GetType(componentType); var swizzledResultType = texOp.GetVectorType(componentType); var texel = context.ImageRead(context.TypeVector(imageComponentType, 4), image, pCoords, ImageOperandsMask.MaskNone); var result = GetSwizzledResult(context, texel, swizzledResultType, texOp.Index); return new OperationResult(componentType, result); } private static OperationResult GenerateImageStore(CodeGenContext context, AstOperation operation) { AstTextureOperation texOp = (AstTextureOperation)operation; bool isBindless = (texOp.Flags & TextureFlags.Bindless) != 0; // TODO: Bindless texture support. For now we just return 0/do nothing. if (isBindless) { return OperationResult.Invalid; } bool isArray = (texOp.Type & SamplerType.Array) != 0; bool isIndexed = (texOp.Type & SamplerType.Indexed) != 0; int srcIndex = isBindless ? 1 : 0; SpvInstruction Src(AggregateType type) { return context.Get(type, texOp.GetSource(srcIndex++)); } SpvInstruction index = null; if (isIndexed) { index = Src(AggregateType.S32); } int coordsCount = texOp.Type.GetDimensions(); int pCount = coordsCount + (isArray ? 1 : 0); SpvInstruction pCoords; if (pCount > 1) { SpvInstruction[] elems = new SpvInstruction[pCount]; for (int i = 0; i < pCount; i++) { elems[i] = Src(AggregateType.S32); } var vectorType = context.TypeVector(context.TypeS32(), pCount); pCoords = context.CompositeConstruct(vectorType, elems); } else { pCoords = Src(AggregateType.S32); } var componentType = texOp.Format.GetComponentType(); const int ComponentsCount = 4; SpvInstruction[] cElems = new SpvInstruction[ComponentsCount]; for (int i = 0; i < ComponentsCount; i++) { if (srcIndex < texOp.SourcesCount) { cElems[i] = Src(componentType); } else { cElems[i] = componentType switch { AggregateType.S32 => context.Constant(context.TypeS32(), 0), AggregateType.U32 => context.Constant(context.TypeU32(), 0u), _ => context.Constant(context.TypeFP32(), 0f), }; } } var texel = context.CompositeConstruct(context.TypeVector(context.GetType(componentType), ComponentsCount), cElems); (var imageType, var imageVariable) = context.Images[new TextureMeta(texOp.CbufSlot, texOp.Handle, texOp.Format)]; var image = context.Load(imageType, imageVariable); context.ImageWrite(image, pCoords, texel, ImageOperandsMask.MaskNone); return OperationResult.Invalid; } private static OperationResult GenerateIsNan(CodeGenContext context, AstOperation operation) { var source = operation.GetSource(0); SpvInstruction result; if (operation.Inst.HasFlag(Instruction.FP64)) { result = context.IsNan(context.TypeBool(), context.GetFP64(source)); } else { result = context.IsNan(context.TypeBool(), context.GetFP32(source)); } return new OperationResult(AggregateType.Bool, result); } private static OperationResult GenerateLoad(CodeGenContext context, AstOperation operation) { return GenerateLoadOrStore(context, operation, isStore: false); } private static OperationResult GenerateLoadConstant(CodeGenContext context, AstOperation operation) { var src1 = operation.GetSource(0); var src2 = context.Get(AggregateType.S32, operation.GetSource(1)); var i1 = context.Constant(context.TypeS32(), 0); var i2 = context.ShiftRightArithmetic(context.TypeS32(), src2, context.Constant(context.TypeS32(), 2)); var i3 = context.BitwiseAnd(context.TypeS32(), src2, context.Constant(context.TypeS32(), 3)); SpvInstruction value = null; if (context.Config.GpuAccessor.QueryHostHasVectorIndexingBug()) { // Test for each component individually. for (int i = 0; i < 4; i++) { var component = context.Constant(context.TypeS32(), i); SpvInstruction elemPointer; if (context.UniformBuffersArray != null) { var ubVariable = context.UniformBuffersArray; var i0 = context.Get(AggregateType.S32, src1); elemPointer = context.AccessChain(context.TypePointer(StorageClass.Uniform, context.TypeFP32()), ubVariable, i0, i1, i2, component); } else { var ubVariable = context.UniformBuffers[((AstOperand)src1).Value]; elemPointer = context.AccessChain(context.TypePointer(StorageClass.Uniform, context.TypeFP32()), ubVariable, i1, i2, component); } SpvInstruction newValue = context.Load(context.TypeFP32(), elemPointer); value = value != null ? context.Select(context.TypeFP32(), context.IEqual(context.TypeBool(), i3, component), newValue, value) : newValue; } } else { SpvInstruction elemPointer; if (context.UniformBuffersArray != null) { var ubVariable = context.UniformBuffersArray; var i0 = context.Get(AggregateType.S32, src1); elemPointer = context.AccessChain(context.TypePointer(StorageClass.Uniform, context.TypeFP32()), ubVariable, i0, i1, i2, i3); } else { var ubVariable = context.UniformBuffers[((AstOperand)src1).Value]; elemPointer = context.AccessChain(context.TypePointer(StorageClass.Uniform, context.TypeFP32()), ubVariable, i1, i2, i3); } value = context.Load(context.TypeFP32(), elemPointer); } return new OperationResult(AggregateType.FP32, value); } private static OperationResult GenerateLoadLocal(CodeGenContext context, AstOperation operation) { return GenerateLoadLocalOrShared(context, operation, StorageClass.Private, context.LocalMemory); } private static OperationResult GenerateLoadShared(CodeGenContext context, AstOperation operation) { return GenerateLoadLocalOrShared(context, operation, StorageClass.Workgroup, context.SharedMemory); } private static OperationResult GenerateLoadLocalOrShared( CodeGenContext context, AstOperation operation, StorageClass storageClass, SpvInstruction memory) { var offset = context.Get(AggregateType.S32, operation.GetSource(0)); var elemPointer = context.AccessChain(context.TypePointer(storageClass, context.TypeU32()), memory, offset); var value = context.Load(context.TypeU32(), elemPointer); return new OperationResult(AggregateType.U32, value); } private static OperationResult GenerateLoadStorage(CodeGenContext context, AstOperation operation) { var elemPointer = GetStorageElemPointer(context, operation); var value = context.Load(context.TypeU32(), elemPointer); return new OperationResult(AggregateType.U32, value); } private static OperationResult GenerateLod(CodeGenContext context, AstOperation operation) { AstTextureOperation texOp = (AstTextureOperation)operation; bool isBindless = (texOp.Flags & TextureFlags.Bindless) != 0; bool isIndexed = (texOp.Type & SamplerType.Indexed) != 0; // TODO: Bindless texture support. For now we just return 0. if (isBindless) { return new OperationResult(AggregateType.S32, context.Constant(context.TypeS32(), 0)); } int srcIndex = 0; SpvInstruction Src(AggregateType type) { return context.Get(type, texOp.GetSource(srcIndex++)); } SpvInstruction index = null; if (isIndexed) { index = Src(AggregateType.S32); } int pCount = texOp.Type.GetDimensions(); SpvInstruction pCoords; if (pCount > 1) { SpvInstruction[] elems = new SpvInstruction[pCount]; for (int i = 0; i < pCount; i++) { elems[i] = Src(AggregateType.FP32); } var vectorType = context.TypeVector(context.TypeFP32(), pCount); pCoords = context.CompositeConstruct(vectorType, elems); } else { pCoords = Src(AggregateType.FP32); } var meta = new TextureMeta(texOp.CbufSlot, texOp.Handle, texOp.Format); (_, var sampledImageType, var sampledImageVariable) = context.Samplers[meta]; var image = context.Load(sampledImageType, sampledImageVariable); var resultType = context.TypeVector(context.TypeFP32(), 2); var packed = context.ImageQueryLod(resultType, image, pCoords); var result = context.CompositeExtract(context.TypeFP32(), packed, (SpvLiteralInteger)texOp.Index); return new OperationResult(AggregateType.FP32, result); } private static OperationResult GenerateLogarithmB2(CodeGenContext context, AstOperation operation) { return GenerateUnary(context, operation, context.Delegates.GlslLog2, null); } private static OperationResult GenerateLogicalAnd(CodeGenContext context, AstOperation operation) { return GenerateBinaryBool(context, operation, context.Delegates.LogicalAnd); } private static OperationResult GenerateLogicalExclusiveOr(CodeGenContext context, AstOperation operation) { return GenerateBinaryBool(context, operation, context.Delegates.LogicalNotEqual); } private static OperationResult GenerateLogicalNot(CodeGenContext context, AstOperation operation) { return GenerateUnaryBool(context, operation, context.Delegates.LogicalNot); } private static OperationResult GenerateLogicalOr(CodeGenContext context, AstOperation operation) { return GenerateBinaryBool(context, operation, context.Delegates.LogicalOr); } private static OperationResult GenerateLoopBreak(CodeGenContext context, AstOperation operation) { AstBlock loopBlock = context.CurrentBlock; while (loopBlock.Type != AstBlockType.DoWhile) { loopBlock = loopBlock.Parent; } context.Branch(context.GetNextLabel(loopBlock.Parent)); return OperationResult.Invalid; } private static OperationResult GenerateLoopContinue(CodeGenContext context, AstOperation operation) { AstBlock loopBlock = context.CurrentBlock; while (loopBlock.Type != AstBlockType.DoWhile) { loopBlock = loopBlock.Parent; } (var loopTarget, var continueTarget) = context.LoopTargets[loopBlock]; context.Branch(continueTarget); return OperationResult.Invalid; } private static OperationResult GenerateMaximum(CodeGenContext context, AstOperation operation) { return GenerateBinary(context, operation, context.Delegates.GlslFMax, context.Delegates.GlslSMax); } private static OperationResult GenerateMaximumU32(CodeGenContext context, AstOperation operation) { return GenerateBinaryU32(context, operation, context.Delegates.GlslUMax); } private static OperationResult GenerateMemoryBarrier(CodeGenContext context, AstOperation operation) { context.MemoryBarrier(context.Constant(context.TypeU32(), Scope.Device), context.Constant(context.TypeU32(), DefaultMemorySemantics)); return OperationResult.Invalid; } private static OperationResult GenerateMinimum(CodeGenContext context, AstOperation operation) { return GenerateBinary(context, operation, context.Delegates.GlslFMin, context.Delegates.GlslSMin); } private static OperationResult GenerateMinimumU32(CodeGenContext context, AstOperation operation) { return GenerateBinaryU32(context, operation, context.Delegates.GlslUMin); } private static OperationResult GenerateMultiply(CodeGenContext context, AstOperation operation) { return GenerateBinary(context, operation, context.Delegates.FMul, context.Delegates.IMul); } private static OperationResult GenerateMultiplyHighS32(CodeGenContext context, AstOperation operation) { var src1 = operation.GetSource(0); var src2 = operation.GetSource(1); var resultType = context.TypeStruct(false, context.TypeS32(), context.TypeS32()); var result = context.SMulExtended(resultType, context.GetS32(src1), context.GetS32(src2)); result = context.CompositeExtract(context.TypeS32(), result, 1); return new OperationResult(AggregateType.S32, result); } private static OperationResult GenerateMultiplyHighU32(CodeGenContext context, AstOperation operation) { var src1 = operation.GetSource(0); var src2 = operation.GetSource(1); var resultType = context.TypeStruct(false, context.TypeU32(), context.TypeU32()); var result = context.UMulExtended(resultType, context.GetU32(src1), context.GetU32(src2)); result = context.CompositeExtract(context.TypeU32(), result, 1); return new OperationResult(AggregateType.U32, result); } private static OperationResult GenerateNegate(CodeGenContext context, AstOperation operation) { return GenerateUnary(context, operation, context.Delegates.FNegate, context.Delegates.SNegate); } private static OperationResult GeneratePackDouble2x32(CodeGenContext context, AstOperation operation) { var value0 = context.GetU32(operation.GetSource(0)); var value1 = context.GetU32(operation.GetSource(1)); var vector = context.CompositeConstruct(context.TypeVector(context.TypeU32(), 2), value0, value1); var result = context.GlslPackDouble2x32(context.TypeFP64(), vector); return new OperationResult(AggregateType.FP64, result); } private static OperationResult GeneratePackHalf2x16(CodeGenContext context, AstOperation operation) { var value0 = context.GetFP32(operation.GetSource(0)); var value1 = context.GetFP32(operation.GetSource(1)); var vector = context.CompositeConstruct(context.TypeVector(context.TypeFP32(), 2), value0, value1); var result = context.GlslPackHalf2x16(context.TypeU32(), vector); return new OperationResult(AggregateType.U32, result); } private static OperationResult GenerateReciprocalSquareRoot(CodeGenContext context, AstOperation operation) { return GenerateUnary(context, operation, context.Delegates.GlslInverseSqrt, null); } private static OperationResult GenerateReturn(CodeGenContext context, AstOperation operation) { context.Return(); return OperationResult.Invalid; } private static OperationResult GenerateRound(CodeGenContext context, AstOperation operation) { return GenerateUnary(context, operation, context.Delegates.GlslRoundEven, null); } private static OperationResult GenerateShiftLeft(CodeGenContext context, AstOperation operation) { return GenerateBinaryS32(context, operation, context.Delegates.ShiftLeftLogical); } private static OperationResult GenerateShiftRightS32(CodeGenContext context, AstOperation operation) { return GenerateBinaryS32(context, operation, context.Delegates.ShiftRightArithmetic); } private static OperationResult GenerateShiftRightU32(CodeGenContext context, AstOperation operation) { return GenerateBinaryS32(context, operation, context.Delegates.ShiftRightLogical); } private static OperationResult GenerateShuffle(CodeGenContext context, AstOperation operation) { var x = context.GetFP32(operation.GetSource(0)); var index = context.GetU32(operation.GetSource(1)); var mask = context.GetU32(operation.GetSource(2)); var const31 = context.Constant(context.TypeU32(), 31); var const8 = context.Constant(context.TypeU32(), 8); var clamp = context.BitwiseAnd(context.TypeU32(), mask, const31); var segMask = context.BitwiseAnd(context.TypeU32(), context.ShiftRightLogical(context.TypeU32(), mask, const8), const31); var notSegMask = context.Not(context.TypeU32(), segMask); var clampNotSegMask = context.BitwiseAnd(context.TypeU32(), clamp, notSegMask); var indexNotSegMask = context.BitwiseAnd(context.TypeU32(), index, notSegMask); var threadId = GetScalarInput(context, IoVariable.SubgroupLaneId); var minThreadId = context.BitwiseAnd(context.TypeU32(), threadId, segMask); var maxThreadId = context.BitwiseOr(context.TypeU32(), minThreadId, clampNotSegMask); var srcThreadId = context.BitwiseOr(context.TypeU32(), indexNotSegMask, minThreadId); var valid = context.ULessThanEqual(context.TypeBool(), srcThreadId, maxThreadId); var value = context.GroupNonUniformShuffle(context.TypeFP32(), context.Constant(context.TypeU32(), (int)Scope.Subgroup), x, srcThreadId); var result = context.Select(context.TypeFP32(), valid, value, x); var validLocal = (AstOperand)operation.GetSource(3); context.Store(context.GetLocalPointer(validLocal), context.BitcastIfNeeded(validLocal.VarType, AggregateType.Bool, valid)); return new OperationResult(AggregateType.FP32, result); } private static OperationResult GenerateShuffleDown(CodeGenContext context, AstOperation operation) { var x = context.GetFP32(operation.GetSource(0)); var index = context.GetU32(operation.GetSource(1)); var mask = context.GetU32(operation.GetSource(2)); var const31 = context.Constant(context.TypeU32(), 31); var const8 = context.Constant(context.TypeU32(), 8); var clamp = context.BitwiseAnd(context.TypeU32(), mask, const31); var segMask = context.BitwiseAnd(context.TypeU32(), context.ShiftRightLogical(context.TypeU32(), mask, const8), const31); var notSegMask = context.Not(context.TypeU32(), segMask); var clampNotSegMask = context.BitwiseAnd(context.TypeU32(), clamp, notSegMask); var threadId = GetScalarInput(context, IoVariable.SubgroupLaneId); var minThreadId = context.BitwiseAnd(context.TypeU32(), threadId, segMask); var maxThreadId = context.BitwiseOr(context.TypeU32(), minThreadId, clampNotSegMask); var srcThreadId = context.IAdd(context.TypeU32(), threadId, index); var valid = context.ULessThanEqual(context.TypeBool(), srcThreadId, maxThreadId); var value = context.GroupNonUniformShuffle(context.TypeFP32(), context.Constant(context.TypeU32(), (int)Scope.Subgroup), x, srcThreadId); var result = context.Select(context.TypeFP32(), valid, value, x); var validLocal = (AstOperand)operation.GetSource(3); context.Store(context.GetLocalPointer(validLocal), context.BitcastIfNeeded(validLocal.VarType, AggregateType.Bool, valid)); return new OperationResult(AggregateType.FP32, result); } private static OperationResult GenerateShuffleUp(CodeGenContext context, AstOperation operation) { var x = context.GetFP32(operation.GetSource(0)); var index = context.GetU32(operation.GetSource(1)); var mask = context.GetU32(operation.GetSource(2)); var const31 = context.Constant(context.TypeU32(), 31); var const8 = context.Constant(context.TypeU32(), 8); var segMask = context.BitwiseAnd(context.TypeU32(), context.ShiftRightLogical(context.TypeU32(), mask, const8), const31); var threadId = GetScalarInput(context, IoVariable.SubgroupLaneId); var minThreadId = context.BitwiseAnd(context.TypeU32(), threadId, segMask); var srcThreadId = context.ISub(context.TypeU32(), threadId, index); var valid = context.SGreaterThanEqual(context.TypeBool(), srcThreadId, minThreadId); var value = context.GroupNonUniformShuffle(context.TypeFP32(), context.Constant(context.TypeU32(), (int)Scope.Subgroup), x, srcThreadId); var result = context.Select(context.TypeFP32(), valid, value, x); var validLocal = (AstOperand)operation.GetSource(3); context.Store(context.GetLocalPointer(validLocal), context.BitcastIfNeeded(validLocal.VarType, AggregateType.Bool, valid)); return new OperationResult(AggregateType.FP32, result); } private static OperationResult GenerateShuffleXor(CodeGenContext context, AstOperation operation) { var x = context.GetFP32(operation.GetSource(0)); var index = context.GetU32(operation.GetSource(1)); var mask = context.GetU32(operation.GetSource(2)); var const31 = context.Constant(context.TypeU32(), 31); var const8 = context.Constant(context.TypeU32(), 8); var clamp = context.BitwiseAnd(context.TypeU32(), mask, const31); var segMask = context.BitwiseAnd(context.TypeU32(), context.ShiftRightLogical(context.TypeU32(), mask, const8), const31); var notSegMask = context.Not(context.TypeU32(), segMask); var clampNotSegMask = context.BitwiseAnd(context.TypeU32(), clamp, notSegMask); var threadId = GetScalarInput(context, IoVariable.SubgroupLaneId); var minThreadId = context.BitwiseAnd(context.TypeU32(), threadId, segMask); var maxThreadId = context.BitwiseOr(context.TypeU32(), minThreadId, clampNotSegMask); var srcThreadId = context.BitwiseXor(context.TypeU32(), threadId, index); var valid = context.ULessThanEqual(context.TypeBool(), srcThreadId, maxThreadId); var value = context.GroupNonUniformShuffle(context.TypeFP32(), context.Constant(context.TypeU32(), (int)Scope.Subgroup), x, srcThreadId); var result = context.Select(context.TypeFP32(), valid, value, x); var validLocal = (AstOperand)operation.GetSource(3); context.Store(context.GetLocalPointer(validLocal), context.BitcastIfNeeded(validLocal.VarType, AggregateType.Bool, valid)); return new OperationResult(AggregateType.FP32, result); } private static OperationResult GenerateSine(CodeGenContext context, AstOperation operation) { return GenerateUnary(context, operation, context.Delegates.GlslSin, null); } private static OperationResult GenerateSquareRoot(CodeGenContext context, AstOperation operation) { return GenerateUnary(context, operation, context.Delegates.GlslSqrt, null); } private static OperationResult GenerateStore(CodeGenContext context, AstOperation operation) { return GenerateLoadOrStore(context, operation, isStore: true); } private static OperationResult GenerateStoreLocal(CodeGenContext context, AstOperation operation) { return GenerateStoreLocalOrShared(context, operation, StorageClass.Private, context.LocalMemory); } private static OperationResult GenerateStoreShared(CodeGenContext context, AstOperation operation) { return GenerateStoreLocalOrShared(context, operation, StorageClass.Workgroup, context.SharedMemory); } private static OperationResult GenerateStoreLocalOrShared( CodeGenContext context, AstOperation operation, StorageClass storageClass, SpvInstruction memory) { var offset = context.Get(AggregateType.S32, operation.GetSource(0)); var value = context.Get(AggregateType.U32, operation.GetSource(1)); var elemPointer = context.AccessChain(context.TypePointer(storageClass, context.TypeU32()), memory, offset); context.Store(elemPointer, value); return OperationResult.Invalid; } private static OperationResult GenerateStoreShared16(CodeGenContext context, AstOperation operation) { GenerateStoreSharedSmallInt(context, operation, 16); return OperationResult.Invalid; } private static OperationResult GenerateStoreShared8(CodeGenContext context, AstOperation operation) { GenerateStoreSharedSmallInt(context, operation, 8); return OperationResult.Invalid; } private static OperationResult GenerateStoreStorage(CodeGenContext context, AstOperation operation) { var elemPointer = GetStorageElemPointer(context, operation); context.Store(elemPointer, context.Get(AggregateType.U32, operation.GetSource(2))); return OperationResult.Invalid; } private static OperationResult GenerateStoreStorage16(CodeGenContext context, AstOperation operation) { GenerateStoreStorageSmallInt(context, operation, 16); return OperationResult.Invalid; } private static OperationResult GenerateStoreStorage8(CodeGenContext context, AstOperation operation) { GenerateStoreStorageSmallInt(context, operation, 8); return OperationResult.Invalid; } private static OperationResult GenerateSubtract(CodeGenContext context, AstOperation operation) { return GenerateBinary(context, operation, context.Delegates.FSub, context.Delegates.ISub); } private static OperationResult GenerateSwizzleAdd(CodeGenContext context, AstOperation operation) { var x = context.Get(AggregateType.FP32, operation.GetSource(0)); var y = context.Get(AggregateType.FP32, operation.GetSource(1)); var mask = context.Get(AggregateType.U32, operation.GetSource(2)); var v4float = context.TypeVector(context.TypeFP32(), 4); var one = context.Constant(context.TypeFP32(), 1.0f); var minusOne = context.Constant(context.TypeFP32(), -1.0f); var zero = context.Constant(context.TypeFP32(), 0.0f); var xLut = context.ConstantComposite(v4float, one, minusOne, one, zero); var yLut = context.ConstantComposite(v4float, one, one, minusOne, one); var three = context.Constant(context.TypeU32(), 3); var threadId = GetScalarInput(context, IoVariable.SubgroupLaneId); var shift = context.BitwiseAnd(context.TypeU32(), threadId, three); shift = context.ShiftLeftLogical(context.TypeU32(), shift, context.Constant(context.TypeU32(), 1)); var lutIdx = context.ShiftRightLogical(context.TypeU32(), mask, shift); lutIdx = context.BitwiseAnd(context.TypeU32(), lutIdx, three); var xLutValue = context.VectorExtractDynamic(context.TypeFP32(), xLut, lutIdx); var yLutValue = context.VectorExtractDynamic(context.TypeFP32(), yLut, lutIdx); var xResult = context.FMul(context.TypeFP32(), x, xLutValue); var yResult = context.FMul(context.TypeFP32(), y, yLutValue); var result = context.FAdd(context.TypeFP32(), xResult, yResult); return new OperationResult(AggregateType.FP32, result); } private static OperationResult GenerateTextureSample(CodeGenContext context, AstOperation operation) { AstTextureOperation texOp = (AstTextureOperation)operation; bool isBindless = (texOp.Flags & TextureFlags.Bindless) != 0; bool isGather = (texOp.Flags & TextureFlags.Gather) != 0; bool hasDerivatives = (texOp.Flags & TextureFlags.Derivatives) != 0; bool intCoords = (texOp.Flags & TextureFlags.IntCoords) != 0; bool hasLodBias = (texOp.Flags & TextureFlags.LodBias) != 0; bool hasLodLevel = (texOp.Flags & TextureFlags.LodLevel) != 0; bool hasOffset = (texOp.Flags & TextureFlags.Offset) != 0; bool hasOffsets = (texOp.Flags & TextureFlags.Offsets) != 0; bool isArray = (texOp.Type & SamplerType.Array) != 0; bool isIndexed = (texOp.Type & SamplerType.Indexed) != 0; bool isMultisample = (texOp.Type & SamplerType.Multisample) != 0; bool isShadow = (texOp.Type & SamplerType.Shadow) != 0; bool colorIsVector = isGather || !isShadow; // TODO: Bindless texture support. For now we just return 0. if (isBindless) { return GetZeroOperationResult(context, texOp, AggregateType.FP32, colorIsVector); } int srcIndex = isBindless ? 1 : 0; SpvInstruction Src(AggregateType type) { return context.Get(type, texOp.GetSource(srcIndex++)); } SpvInstruction index = null; if (isIndexed) { index = Src(AggregateType.S32); } int coordsCount = texOp.Type.GetDimensions(); int pCount = coordsCount; int arrayIndexElem = -1; if (isArray) { arrayIndexElem = pCount++; } AggregateType coordType = intCoords ? AggregateType.S32 : AggregateType.FP32; SpvInstruction AssemblePVector(int count) { if (count > 1) { SpvInstruction[] elems = new SpvInstruction[count]; for (int index = 0; index < count; index++) { if (arrayIndexElem == index) { elems[index] = Src(AggregateType.S32); if (!intCoords) { elems[index] = context.ConvertSToF(context.TypeFP32(), elems[index]); } } else { elems[index] = Src(coordType); } } var vectorType = context.TypeVector(intCoords ? context.TypeS32() : context.TypeFP32(), count); return context.CompositeConstruct(vectorType, elems); } else { return Src(coordType); } } SpvInstruction ApplyBias(SpvInstruction vector, SpvInstruction image) { int gatherBiasPrecision = context.Config.GpuAccessor.QueryHostGatherBiasPrecision(); if (isGather && gatherBiasPrecision != 0) { // GPU requires texture gather to be slightly offset to match NVIDIA behaviour when point is exactly between two texels. // Offset by the gather precision divided by 2 to correct for rounding. var sizeType = pCount == 1 ? context.TypeS32() : context.TypeVector(context.TypeS32(), pCount); var pVectorType = pCount == 1 ? context.TypeFP32() : context.TypeVector(context.TypeFP32(), pCount); var bias = context.Constant(context.TypeFP32(), (float)(1 << (gatherBiasPrecision + 1))); var biasVector = context.CompositeConstruct(pVectorType, Enumerable.Repeat(bias, pCount).ToArray()); var one = context.Constant(context.TypeFP32(), 1f); var oneVector = context.CompositeConstruct(pVectorType, Enumerable.Repeat(one, pCount).ToArray()); var divisor = context.FMul( pVectorType, context.ConvertSToF(pVectorType, context.ImageQuerySize(sizeType, image)), biasVector); vector = context.FAdd(pVectorType, vector, context.FDiv(pVectorType, oneVector, divisor)); } return vector; } SpvInstruction pCoords = AssemblePVector(pCount); pCoords = ScalingHelpers.ApplyScaling(context, texOp, pCoords, intCoords, isBindless, isIndexed, isArray, pCount); SpvInstruction AssembleDerivativesVector(int count) { if (count > 1) { SpvInstruction[] elems = new SpvInstruction[count]; for (int index = 0; index < count; index++) { elems[index] = Src(AggregateType.FP32); } var vectorType = context.TypeVector(context.TypeFP32(), count); return context.CompositeConstruct(vectorType, elems); } else { return Src(AggregateType.FP32); } } SpvInstruction dRef = null; if (isShadow) { dRef = Src(AggregateType.FP32); } SpvInstruction[] derivatives = null; if (hasDerivatives) { derivatives = new[] { AssembleDerivativesVector(coordsCount), // dPdx AssembleDerivativesVector(coordsCount) // dPdy }; } SpvInstruction sample = null; SpvInstruction lod = null; if (isMultisample) { sample = Src(AggregateType.S32); } else if (hasLodLevel) { lod = Src(coordType); } SpvInstruction AssembleOffsetVector(int count) { if (count > 1) { SpvInstruction[] elems = new SpvInstruction[count]; for (int index = 0; index < count; index++) { elems[index] = Src(AggregateType.S32); } var vectorType = context.TypeVector(context.TypeS32(), count); return context.ConstantComposite(vectorType, elems); } else { return Src(AggregateType.S32); } } SpvInstruction[] offsets = null; if (hasOffset) { offsets = new[] { AssembleOffsetVector(coordsCount) }; } else if (hasOffsets) { offsets = new[] { AssembleOffsetVector(coordsCount), AssembleOffsetVector(coordsCount), AssembleOffsetVector(coordsCount), AssembleOffsetVector(coordsCount) }; } SpvInstruction lodBias = null; if (hasLodBias) { lodBias = Src(AggregateType.FP32); } SpvInstruction compIdx = null; // textureGather* optional extra component index, // not needed for shadow samplers. if (isGather && !isShadow) { compIdx = Src(AggregateType.S32); } var operandsList = new List(); var operandsMask = ImageOperandsMask.MaskNone; if (hasLodBias) { operandsMask |= ImageOperandsMask.Bias; operandsList.Add(lodBias); } if (!isMultisample && hasLodLevel) { operandsMask |= ImageOperandsMask.Lod; operandsList.Add(lod); } if (hasDerivatives) { operandsMask |= ImageOperandsMask.Grad; operandsList.Add(derivatives[0]); operandsList.Add(derivatives[1]); } if (hasOffset) { operandsMask |= ImageOperandsMask.ConstOffset; operandsList.Add(offsets[0]); } else if (hasOffsets) { operandsMask |= ImageOperandsMask.ConstOffsets; SpvInstruction arrayv2 = context.TypeArray(context.TypeVector(context.TypeS32(), 2), context.Constant(context.TypeU32(), 4)); operandsList.Add(context.ConstantComposite(arrayv2, offsets[0], offsets[1], offsets[2], offsets[3])); } if (isMultisample) { operandsMask |= ImageOperandsMask.Sample; operandsList.Add(sample); } var resultType = colorIsVector ? context.TypeVector(context.TypeFP32(), 4) : context.TypeFP32(); var meta = new TextureMeta(texOp.CbufSlot, texOp.Handle, texOp.Format); (var imageType, var sampledImageType, var sampledImageVariable) = context.Samplers[meta]; var image = context.Load(sampledImageType, sampledImageVariable); if (intCoords) { image = context.Image(imageType, image); } pCoords = ApplyBias(pCoords, image); var operands = operandsList.ToArray(); SpvInstruction result; if (intCoords) { result = context.ImageFetch(resultType, image, pCoords, operandsMask, operands); } else if (isGather) { if (isShadow) { result = context.ImageDrefGather(resultType, image, pCoords, dRef, operandsMask, operands); } else { result = context.ImageGather(resultType, image, pCoords, compIdx, operandsMask, operands); } } else if (isShadow) { if (hasLodLevel) { result = context.ImageSampleDrefExplicitLod(resultType, image, pCoords, dRef, operandsMask, operands); } else { result = context.ImageSampleDrefImplicitLod(resultType, image, pCoords, dRef, operandsMask, operands); } } else if (hasDerivatives || hasLodLevel) { result = context.ImageSampleExplicitLod(resultType, image, pCoords, operandsMask, operands); } else { result = context.ImageSampleImplicitLod(resultType, image, pCoords, operandsMask, operands); } var swizzledResultType = AggregateType.FP32; if (colorIsVector) { swizzledResultType = texOp.GetVectorType(swizzledResultType); result = GetSwizzledResult(context, result, swizzledResultType, texOp.Index); } return new OperationResult(swizzledResultType, result); } private static OperationResult GenerateTextureSize(CodeGenContext context, AstOperation operation) { AstTextureOperation texOp = (AstTextureOperation)operation; bool isBindless = (texOp.Flags & TextureFlags.Bindless) != 0; // TODO: Bindless texture support. For now we just return 0. if (isBindless) { return new OperationResult(AggregateType.S32, context.Constant(context.TypeS32(), 0)); } bool isIndexed = (texOp.Type & SamplerType.Indexed) != 0; SpvInstruction index = null; if (isIndexed) { index = context.GetS32(texOp.GetSource(0)); } var meta = new TextureMeta(texOp.CbufSlot, texOp.Handle, texOp.Format); (var imageType, var sampledImageType, var sampledImageVariable) = context.Samplers[meta]; var image = context.Load(sampledImageType, sampledImageVariable); image = context.Image(imageType, image); if (texOp.Index == 3) { return new OperationResult(AggregateType.S32, context.ImageQueryLevels(context.TypeS32(), image)); } else { var type = context.SamplersTypes[meta]; bool hasLod = !type.HasFlag(SamplerType.Multisample) && type != SamplerType.TextureBuffer; int dimensions = (type & SamplerType.Mask) == SamplerType.TextureCube ? 2 : type.GetDimensions(); if (type.HasFlag(SamplerType.Array)) { dimensions++; } var resultType = dimensions == 1 ? context.TypeS32() : context.TypeVector(context.TypeS32(), dimensions); SpvInstruction result; if (hasLod) { int lodSrcIndex = isBindless || isIndexed ? 1 : 0; var lod = context.GetS32(operation.GetSource(lodSrcIndex)); result = context.ImageQuerySizeLod(resultType, image, lod); } else { result = context.ImageQuerySize(resultType, image); } if (dimensions != 1) { result = context.CompositeExtract(context.TypeS32(), result, (SpvLiteralInteger)texOp.Index); } if (texOp.Index < 2 || (type & SamplerType.Mask) == SamplerType.Texture3D) { result = ScalingHelpers.ApplyUnscaling(context, texOp.WithType(type), result, isBindless, isIndexed); } return new OperationResult(AggregateType.S32, result); } } private static OperationResult GenerateTruncate(CodeGenContext context, AstOperation operation) { return GenerateUnary(context, operation, context.Delegates.GlslTrunc, null); } private static OperationResult GenerateUnpackDouble2x32(CodeGenContext context, AstOperation operation) { var value = context.GetFP64(operation.GetSource(0)); var vector = context.GlslUnpackDouble2x32(context.TypeVector(context.TypeU32(), 2), value); var result = context.CompositeExtract(context.TypeU32(), vector, operation.Index); return new OperationResult(AggregateType.U32, result); } private static OperationResult GenerateUnpackHalf2x16(CodeGenContext context, AstOperation operation) { var value = context.GetU32(operation.GetSource(0)); var vector = context.GlslUnpackHalf2x16(context.TypeVector(context.TypeFP32(), 2), value); var result = context.CompositeExtract(context.TypeFP32(), vector, operation.Index); return new OperationResult(AggregateType.FP32, result); } private static OperationResult GenerateVectorExtract(CodeGenContext context, AstOperation operation) { var vector = context.GetWithType(operation.GetSource(0), out AggregateType vectorType); var scalarType = vectorType & ~AggregateType.ElementCountMask; var resultType = context.GetType(scalarType); SpvInstruction result; if (operation.GetSource(1) is AstOperand indexOperand && indexOperand.Type == OperandType.Constant) { result = context.CompositeExtract(resultType, vector, (SpvLiteralInteger)indexOperand.Value); } else { var index = context.Get(AggregateType.S32, operation.GetSource(1)); result = context.VectorExtractDynamic(resultType, vector, index); } return new OperationResult(scalarType, result); } private static OperationResult GenerateVoteAll(CodeGenContext context, AstOperation operation) { var execution = context.Constant(context.TypeU32(), Scope.Subgroup); var result = context.GroupNonUniformAll(context.TypeBool(), execution, context.Get(AggregateType.Bool, operation.GetSource(0))); return new OperationResult(AggregateType.Bool, result); } private static OperationResult GenerateVoteAllEqual(CodeGenContext context, AstOperation operation) { var execution = context.Constant(context.TypeU32(), Scope.Subgroup); var result = context.GroupNonUniformAllEqual(context.TypeBool(), execution, context.Get(AggregateType.Bool, operation.GetSource(0))); return new OperationResult(AggregateType.Bool, result); } private static OperationResult GenerateVoteAny(CodeGenContext context, AstOperation operation) { var execution = context.Constant(context.TypeU32(), Scope.Subgroup); var result = context.GroupNonUniformAny(context.TypeBool(), execution, context.Get(AggregateType.Bool, operation.GetSource(0))); return new OperationResult(AggregateType.Bool, result); } private static OperationResult GenerateCompare( CodeGenContext context, AstOperation operation, Func emitF, Func emitI) { var src1 = operation.GetSource(0); var src2 = operation.GetSource(1); SpvInstruction result; if (operation.Inst.HasFlag(Instruction.FP64)) { result = emitF(context.TypeBool(), context.GetFP64(src1), context.GetFP64(src2)); } else if (operation.Inst.HasFlag(Instruction.FP32)) { result = emitF(context.TypeBool(), context.GetFP32(src1), context.GetFP32(src2)); } else { result = emitI(context.TypeBool(), context.GetS32(src1), context.GetS32(src2)); } return new OperationResult(AggregateType.Bool, result); } private static OperationResult GenerateCompareU32( CodeGenContext context, AstOperation operation, Func emitU) { var src1 = operation.GetSource(0); var src2 = operation.GetSource(1); var result = emitU(context.TypeBool(), context.GetU32(src1), context.GetU32(src2)); return new OperationResult(AggregateType.Bool, result); } private static OperationResult GenerateAtomicMemoryBinary( CodeGenContext context, AstOperation operation, Func emitU) { var value = context.GetU32(operation.GetSource(2)); SpvInstruction elemPointer; if (operation.StorageKind == StorageKind.StorageBuffer) { elemPointer = GetStorageElemPointer(context, operation); } else if (operation.StorageKind == StorageKind.SharedMemory) { var offset = context.GetU32(operation.GetSource(0)); elemPointer = context.AccessChain(context.TypePointer(StorageClass.Workgroup, context.TypeU32()), context.SharedMemory, offset); } else { throw new InvalidOperationException($"Invalid storage kind \"{operation.StorageKind}\"."); } var one = context.Constant(context.TypeU32(), 1); var zero = context.Constant(context.TypeU32(), 0); return new OperationResult(AggregateType.U32, emitU(context.TypeU32(), elemPointer, one, zero, value)); } private static OperationResult GenerateAtomicMemoryCas(CodeGenContext context, AstOperation operation) { var value0 = context.GetU32(operation.GetSource(2)); var value1 = context.GetU32(operation.GetSource(3)); SpvInstruction elemPointer; if (operation.StorageKind == StorageKind.StorageBuffer) { elemPointer = GetStorageElemPointer(context, operation); } else if (operation.StorageKind == StorageKind.SharedMemory) { var offset = context.GetU32(operation.GetSource(0)); elemPointer = context.AccessChain(context.TypePointer(StorageClass.Workgroup, context.TypeU32()), context.SharedMemory, offset); } else { throw new InvalidOperationException($"Invalid storage kind \"{operation.StorageKind}\"."); } var one = context.Constant(context.TypeU32(), 1); var zero = context.Constant(context.TypeU32(), 0); return new OperationResult(AggregateType.U32, context.AtomicCompareExchange(context.TypeU32(), elemPointer, one, zero, zero, value1, value0)); } private static OperationResult GenerateLoadOrStore(CodeGenContext context, AstOperation operation, bool isStore) { StorageKind storageKind = operation.StorageKind; SpvInstruction pointer; AggregateType varType; int srcIndex = 0; switch (storageKind) { case StorageKind.Input: case StorageKind.InputPerPatch: case StorageKind.Output: case StorageKind.OutputPerPatch: if (!(operation.GetSource(srcIndex++) is AstOperand varId) || varId.Type != OperandType.Constant) { throw new InvalidOperationException($"First input of {operation.Inst} with {storageKind} storage must be a constant operand."); } IoVariable ioVariable = (IoVariable)varId.Value; bool isOutput = storageKind.IsOutput(); bool isPerPatch = storageKind.IsPerPatch(); int location = 0; int component = 0; if (context.Config.HasPerLocationInputOrOutput(ioVariable, isOutput)) { if (!(operation.GetSource(srcIndex++) is AstOperand vecIndex) || vecIndex.Type != OperandType.Constant) { throw new InvalidOperationException($"Second input of {operation.Inst} with {storageKind} storage must be a constant operand."); } location = vecIndex.Value; if (operation.SourcesCount > srcIndex && operation.GetSource(srcIndex) is AstOperand elemIndex && elemIndex.Type == OperandType.Constant && context.Config.HasPerLocationInputOrOutputComponent(ioVariable, location, elemIndex.Value, isOutput)) { component = elemIndex.Value; srcIndex++; } } if (ioVariable == IoVariable.UserDefined) { varType = context.Config.GetUserDefinedType(location, isOutput); } else if (ioVariable == IoVariable.FragmentOutputColor) { varType = context.Config.GetFragmentOutputColorType(location); } else if (ioVariable == IoVariable.FragmentOutputIsBgra) { var pointerType = context.TypePointer(StorageClass.Uniform, context.TypeU32()); var elemIndex = context.Get(AggregateType.S32, operation.GetSource(srcIndex++)); pointer = context.AccessChain(pointerType, context.SupportBuffer, context.Constant(context.TypeU32(), 1), elemIndex); varType = AggregateType.U32; break; } else if (ioVariable == IoVariable.SupportBlockRenderScale) { var pointerType = context.TypePointer(StorageClass.Uniform, context.TypeFP32()); var elemIndex = context.Get(AggregateType.S32, operation.GetSource(srcIndex++)); pointer = context.AccessChain(pointerType, context.SupportBuffer, context.Constant(context.TypeU32(), 4), elemIndex); varType = AggregateType.FP32; break; } else if (ioVariable == IoVariable.SupportBlockViewInverse) { var pointerType = context.TypePointer(StorageClass.Uniform, context.TypeFP32()); var elemIndex = context.Get(AggregateType.S32, operation.GetSource(srcIndex++)); pointer = context.AccessChain(pointerType, context.SupportBuffer, context.Constant(context.TypeU32(), 2), elemIndex); varType = AggregateType.FP32; break; } else { (_, varType) = IoMap.GetSpirvBuiltIn(ioVariable); } varType &= AggregateType.ElementTypeMask; int inputsCount = (isStore ? operation.SourcesCount - 1 : operation.SourcesCount) - srcIndex; var storageClass = isOutput ? StorageClass.Output : StorageClass.Input; var ioDefinition = new IoDefinition(storageKind, ioVariable, location, component); var dict = isPerPatch ? (isOutput ? context.OutputsPerPatch : context.InputsPerPatch) : (isOutput ? context.Outputs : context.Inputs); SpvInstruction baseObj = dict[ioDefinition]; SpvInstruction e0, e1, e2; switch (inputsCount) { case 0: pointer = baseObj; break; case 1: e0 = context.Get(AggregateType.S32, operation.GetSource(srcIndex++)); pointer = context.AccessChain(context.TypePointer(storageClass, context.GetType(varType)), baseObj, e0); break; case 2: e0 = context.Get(AggregateType.S32, operation.GetSource(srcIndex++)); e1 = context.Get(AggregateType.S32, operation.GetSource(srcIndex++)); pointer = context.AccessChain(context.TypePointer(storageClass, context.GetType(varType)), baseObj, e0, e1); break; case 3: e0 = context.Get(AggregateType.S32, operation.GetSource(srcIndex++)); e1 = context.Get(AggregateType.S32, operation.GetSource(srcIndex++)); e2 = context.Get(AggregateType.S32, operation.GetSource(srcIndex++)); pointer = context.AccessChain(context.TypePointer(storageClass, context.GetType(varType)), baseObj, e0, e1, e2); break; default: var indexes = new SpvInstruction[inputsCount]; int index = 0; for (; index < inputsCount; srcIndex++, index++) { indexes[index] = context.Get(AggregateType.S32, operation.GetSource(srcIndex)); } pointer = context.AccessChain(context.TypePointer(storageClass, context.GetType(varType)), baseObj, indexes); break; } break; default: throw new InvalidOperationException($"Invalid storage kind {storageKind}."); } if (isStore) { context.Store(pointer, context.Get(varType, operation.GetSource(srcIndex))); return OperationResult.Invalid; } else { var result = context.Load(context.GetType(varType), pointer); return new OperationResult(varType, result); } } private static SpvInstruction GetScalarInput(CodeGenContext context, IoVariable ioVariable) { (_, var varType) = IoMap.GetSpirvBuiltIn(ioVariable); varType &= AggregateType.ElementTypeMask; var ioDefinition = new IoDefinition(StorageKind.Input, ioVariable); return context.Load(context.GetType(varType), context.Inputs[ioDefinition]); } private static void GenerateStoreSharedSmallInt(CodeGenContext context, AstOperation operation, int bitSize) { var offset = context.Get(AggregateType.U32, operation.GetSource(0)); var value = context.Get(AggregateType.U32, operation.GetSource(1)); var wordOffset = context.ShiftRightLogical(context.TypeU32(), offset, context.Constant(context.TypeU32(), 2)); var bitOffset = context.BitwiseAnd(context.TypeU32(), offset, context.Constant(context.TypeU32(), 3)); bitOffset = context.ShiftLeftLogical(context.TypeU32(), bitOffset, context.Constant(context.TypeU32(), 3)); var memory = context.SharedMemory; var elemPointer = context.AccessChain(context.TypePointer(StorageClass.Workgroup, context.TypeU32()), memory, wordOffset); GenerateStoreSmallInt(context, elemPointer, bitOffset, value, bitSize); } private static void GenerateStoreStorageSmallInt(CodeGenContext context, AstOperation operation, int bitSize) { var i0 = context.Get(AggregateType.S32, operation.GetSource(0)); var offset = context.Get(AggregateType.U32, operation.GetSource(1)); var value = context.Get(AggregateType.U32, operation.GetSource(2)); var wordOffset = context.ShiftRightLogical(context.TypeU32(), offset, context.Constant(context.TypeU32(), 2)); var bitOffset = context.BitwiseAnd(context.TypeU32(), offset, context.Constant(context.TypeU32(), 3)); bitOffset = context.ShiftLeftLogical(context.TypeU32(), bitOffset, context.Constant(context.TypeU32(), 3)); var sbVariable = context.StorageBuffersArray; var i1 = context.Constant(context.TypeS32(), 0); var elemPointer = context.AccessChain(context.TypePointer(StorageClass.Uniform, context.TypeU32()), sbVariable, i0, i1, wordOffset); GenerateStoreSmallInt(context, elemPointer, bitOffset, value, bitSize); } private static void GenerateStoreSmallInt( CodeGenContext context, SpvInstruction elemPointer, SpvInstruction bitOffset, SpvInstruction value, int bitSize) { var loopStart = context.Label(); var loopEnd = context.Label(); context.Branch(loopStart); context.AddLabel(loopStart); var oldValue = context.Load(context.TypeU32(), elemPointer); var newValue = context.BitFieldInsert(context.TypeU32(), oldValue, value, bitOffset, context.Constant(context.TypeU32(), bitSize)); var one = context.Constant(context.TypeU32(), 1); var zero = context.Constant(context.TypeU32(), 0); var result = context.AtomicCompareExchange(context.TypeU32(), elemPointer, one, zero, zero, newValue, oldValue); var failed = context.INotEqual(context.TypeBool(), result, oldValue); context.LoopMerge(loopEnd, loopStart, LoopControlMask.MaskNone); context.BranchConditional(failed, loopStart, loopEnd); context.AddLabel(loopEnd); } private static OperationResult GetZeroOperationResult( CodeGenContext context, AstTextureOperation texOp, AggregateType scalarType, bool isVector) { var zero = scalarType switch { AggregateType.S32 => context.Constant(context.TypeS32(), 0), AggregateType.U32 => context.Constant(context.TypeU32(), 0u), _ => context.Constant(context.TypeFP32(), 0f), }; if (isVector) { AggregateType outputType = texOp.GetVectorType(scalarType); if ((outputType & AggregateType.ElementCountMask) != 0) { int componentsCount = BitOperations.PopCount((uint)texOp.Index); SpvInstruction[] values = new SpvInstruction[componentsCount]; values.AsSpan().Fill(zero); return new OperationResult(outputType, context.ConstantComposite(context.GetType(outputType), values)); } } return new OperationResult(scalarType, zero); } private static SpvInstruction GetSwizzledResult(CodeGenContext context, SpvInstruction vector, AggregateType swizzledResultType, int mask) { if ((swizzledResultType & AggregateType.ElementCountMask) != 0) { SpvLiteralInteger[] components = new SpvLiteralInteger[BitOperations.PopCount((uint)mask)]; int componentIndex = 0; for (int i = 0; i < 4; i++) { if ((mask & (1 << i)) != 0) { components[componentIndex++] = i; } } return context.VectorShuffle(context.GetType(swizzledResultType), vector, vector, components); } else { int componentIndex = (int)BitOperations.TrailingZeroCount(mask); return context.CompositeExtract(context.GetType(swizzledResultType), vector, (SpvLiteralInteger)componentIndex); } } private static SpvInstruction GetStorageElemPointer(CodeGenContext context, AstOperation operation) { var sbVariable = context.StorageBuffersArray; var i0 = context.Get(AggregateType.S32, operation.GetSource(0)); var i1 = context.Constant(context.TypeS32(), 0); var i2 = context.Get(AggregateType.S32, operation.GetSource(1)); return context.AccessChain(context.TypePointer(StorageClass.Uniform, context.TypeU32()), sbVariable, i0, i1, i2); } private static OperationResult GenerateUnary( CodeGenContext context, AstOperation operation, Func emitF, Func emitI) { var source = operation.GetSource(0); if (operation.Inst.HasFlag(Instruction.FP64)) { return new OperationResult(AggregateType.FP64, emitF(context.TypeFP64(), context.GetFP64(source))); } else if (operation.Inst.HasFlag(Instruction.FP32)) { return new OperationResult(AggregateType.FP32, emitF(context.TypeFP32(), context.GetFP32(source))); } else { return new OperationResult(AggregateType.S32, emitI(context.TypeS32(), context.GetS32(source))); } } private static OperationResult GenerateUnaryBool( CodeGenContext context, AstOperation operation, Func emitB) { var source = operation.GetSource(0); return new OperationResult(AggregateType.Bool, emitB(context.TypeBool(), context.Get(AggregateType.Bool, source))); } private static OperationResult GenerateUnaryFP32( CodeGenContext context, AstOperation operation, Func emit) { var source = operation.GetSource(0); return new OperationResult(AggregateType.FP32, emit(context.TypeFP32(), context.GetFP32(source))); } private static OperationResult GenerateUnaryS32( CodeGenContext context, AstOperation operation, Func emitS) { var source = operation.GetSource(0); return new OperationResult(AggregateType.S32, emitS(context.TypeS32(), context.GetS32(source))); } private static OperationResult GenerateBinary( CodeGenContext context, AstOperation operation, Func emitF, Func emitI) { var src1 = operation.GetSource(0); var src2 = operation.GetSource(1); if (operation.Inst.HasFlag(Instruction.FP64)) { var result = emitF(context.TypeFP64(), context.GetFP64(src1), context.GetFP64(src2)); if (!context.Config.GpuAccessor.QueryHostReducedPrecision()) { context.Decorate(result, Decoration.NoContraction); } return new OperationResult(AggregateType.FP64, result); } else if (operation.Inst.HasFlag(Instruction.FP32)) { var result = emitF(context.TypeFP32(), context.GetFP32(src1), context.GetFP32(src2)); if (!context.Config.GpuAccessor.QueryHostReducedPrecision()) { context.Decorate(result, Decoration.NoContraction); } return new OperationResult(AggregateType.FP32, result); } else { return new OperationResult(AggregateType.S32, emitI(context.TypeS32(), context.GetS32(src1), context.GetS32(src2))); } } private static OperationResult GenerateBinaryBool( CodeGenContext context, AstOperation operation, Func emitB) { var src1 = operation.GetSource(0); var src2 = operation.GetSource(1); return new OperationResult(AggregateType.Bool, emitB(context.TypeBool(), context.Get(AggregateType.Bool, src1), context.Get(AggregateType.Bool, src2))); } private static OperationResult GenerateBinaryS32( CodeGenContext context, AstOperation operation, Func emitS) { var src1 = operation.GetSource(0); var src2 = operation.GetSource(1); return new OperationResult(AggregateType.S32, emitS(context.TypeS32(), context.GetS32(src1), context.GetS32(src2))); } private static OperationResult GenerateBinaryU32( CodeGenContext context, AstOperation operation, Func emitU) { var src1 = operation.GetSource(0); var src2 = operation.GetSource(1); return new OperationResult(AggregateType.U32, emitU(context.TypeU32(), context.GetU32(src1), context.GetU32(src2))); } private static OperationResult GenerateTernary( CodeGenContext context, AstOperation operation, Func emitF, Func emitI) { var src1 = operation.GetSource(0); var src2 = operation.GetSource(1); var src3 = operation.GetSource(2); if (operation.Inst.HasFlag(Instruction.FP64)) { var result = emitF(context.TypeFP64(), context.GetFP64(src1), context.GetFP64(src2), context.GetFP64(src3)); if (!context.Config.GpuAccessor.QueryHostReducedPrecision()) { context.Decorate(result, Decoration.NoContraction); } return new OperationResult(AggregateType.FP64, result); } else if (operation.Inst.HasFlag(Instruction.FP32)) { var result = emitF(context.TypeFP32(), context.GetFP32(src1), context.GetFP32(src2), context.GetFP32(src3)); if (!context.Config.GpuAccessor.QueryHostReducedPrecision()) { context.Decorate(result, Decoration.NoContraction); } return new OperationResult(AggregateType.FP32, result); } else { return new OperationResult(AggregateType.S32, emitI(context.TypeS32(), context.GetS32(src1), context.GetS32(src2), context.GetS32(src3))); } } private static OperationResult GenerateTernaryU32( CodeGenContext context, AstOperation operation, Func emitU) { var src1 = operation.GetSource(0); var src2 = operation.GetSource(1); var src3 = operation.GetSource(2); return new OperationResult(AggregateType.U32, emitU( context.TypeU32(), context.GetU32(src1), context.GetU32(src2), context.GetU32(src3))); } private static OperationResult GenerateBitfieldExtractS32( CodeGenContext context, AstOperation operation, Func emitS) { var src1 = operation.GetSource(0); var src2 = operation.GetSource(1); var src3 = operation.GetSource(2); return new OperationResult(AggregateType.S32, emitS( context.TypeS32(), context.GetS32(src1), context.GetU32(src2), context.GetU32(src3))); } private static OperationResult GenerateBitfieldInsert( CodeGenContext context, AstOperation operation, Func emitS) { var src1 = operation.GetSource(0); var src2 = operation.GetSource(1); var src3 = operation.GetSource(2); var src4 = operation.GetSource(3); return new OperationResult(AggregateType.U32, emitS( context.TypeU32(), context.GetU32(src1), context.GetU32(src2), context.GetU32(src3), context.GetU32(src4))); } } }