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ryujinx/Ryujinx.Graphics.Shader/CodeGen/Spirv/Instructions.cs
gdkchan 9f12e50a54
Refactor attribute handling on the shader generator (#4565) 
* Refactor attribute handling on the shader generator

* Implement gl_ViewportMask[]

* Add back the Intel FrontFacing bug workaround

* Fix GLSL transform feedback outputs mistmatch with fragment stage

* Shader cache version bump

* Fix geometry shader recognition

* PR feedback

* Delete GetOperandDef and GetOperandUse

* Remove replacements that are no longer needed on GLSL compilation on Vulkan

* Fix incorrect load for per-patch outputs

* Fix build
2023-04-25 19:51:07 -03:00

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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<CodeGenContext, AstOperation, OperationResult>[] InstTable;
static Instructions()
{
InstTable = new Func<CodeGenContext, AstOperation, OperationResult>[(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<CodeGenContext, AstOperation, OperationResult> 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);
}
// This combination is valid, but not available on GLSL.
// For now, ignore the LOD level and do a normal sample.
// TODO: How to implement it properly?
if (hasLodLevel && isArray && isShadow)
{
hasLodLevel = false;
}
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<SpvInstruction>();
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<SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction> emitF,
Func<SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction> 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<SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction> 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<SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction> 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<SpvInstruction, SpvInstruction, SpvInstruction> emitF,
Func<SpvInstruction, SpvInstruction, SpvInstruction> 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<SpvInstruction, SpvInstruction, SpvInstruction> 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<SpvInstruction, SpvInstruction, SpvInstruction> 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<SpvInstruction, SpvInstruction, SpvInstruction> 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<SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction> emitF,
Func<SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction> 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<SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction> 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<SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction> 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<SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction> 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<SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction> emitF,
Func<SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction> 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<SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction> 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<SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction> 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<SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction, SpvInstruction> 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)));
}
}
}
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