734 lines
35 KiB
C#
734 lines
35 KiB
C#
using Ryujinx.Common;
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using Ryujinx.Graphics.Shader.StructuredIr;
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using Ryujinx.Graphics.Shader.Translation;
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using Spv.Generator;
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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using static Spv.Specification;
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namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
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{
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using SpvInstruction = Spv.Generator.Instruction;
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static class Declarations
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{
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// At least 16 attributes are guaranteed by the spec.
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public const int MaxAttributes = 16;
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private static readonly string[] StagePrefixes = new string[] { "cp", "vp", "tcp", "tep", "gp", "fp" };
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public static void DeclareParameters(CodeGenContext context, StructuredFunction function)
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{
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DeclareParameters(context, function.InArguments, 0);
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DeclareParameters(context, function.OutArguments, function.InArguments.Length);
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}
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private static void DeclareParameters(CodeGenContext context, IEnumerable<VariableType> argTypes, int argIndex)
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{
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foreach (var argType in argTypes)
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{
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var argPointerType = context.TypePointer(StorageClass.Function, context.GetType(argType.Convert()));
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var spvArg = context.FunctionParameter(argPointerType);
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context.DeclareArgument(argIndex++, spvArg);
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}
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}
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public static void DeclareLocals(CodeGenContext context, StructuredFunction function)
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{
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foreach (AstOperand local in function.Locals)
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{
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var localPointerType = context.TypePointer(StorageClass.Function, context.GetType(local.VarType.Convert()));
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var spvLocal = context.Variable(localPointerType, StorageClass.Function);
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context.AddLocalVariable(spvLocal);
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context.DeclareLocal(local, spvLocal);
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}
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var ivector2Type = context.TypeVector(context.TypeS32(), 2);
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var coordTempPointerType = context.TypePointer(StorageClass.Function, ivector2Type);
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var coordTemp = context.Variable(coordTempPointerType, StorageClass.Function);
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context.AddLocalVariable(coordTemp);
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context.CoordTemp = coordTemp;
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}
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public static void DeclareLocalForArgs(CodeGenContext context, List<StructuredFunction> functions)
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{
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for (int funcIndex = 0; funcIndex < functions.Count; funcIndex++)
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{
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StructuredFunction function = functions[funcIndex];
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SpvInstruction[] locals = new SpvInstruction[function.InArguments.Length];
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for (int i = 0; i < function.InArguments.Length; i++)
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{
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var type = function.GetArgumentType(i).Convert();
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var localPointerType = context.TypePointer(StorageClass.Function, context.GetType(type));
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var spvLocal = context.Variable(localPointerType, StorageClass.Function);
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context.AddLocalVariable(spvLocal);
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locals[i] = spvLocal;
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}
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context.DeclareLocalForArgs(funcIndex, locals);
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}
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}
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public static void DeclareAll(CodeGenContext context, StructuredProgramInfo info)
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{
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if (context.Config.Stage == ShaderStage.Compute)
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{
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int localMemorySize = BitUtils.DivRoundUp(context.Config.GpuAccessor.QueryComputeLocalMemorySize(), 4);
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if (localMemorySize != 0)
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{
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DeclareLocalMemory(context, localMemorySize);
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}
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int sharedMemorySize = BitUtils.DivRoundUp(context.Config.GpuAccessor.QueryComputeSharedMemorySize(), 4);
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if (sharedMemorySize != 0)
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{
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DeclareSharedMemory(context, sharedMemorySize);
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}
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}
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else if (context.Config.LocalMemorySize != 0)
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{
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int localMemorySize = BitUtils.DivRoundUp(context.Config.LocalMemorySize, 4);
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DeclareLocalMemory(context, localMemorySize);
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}
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DeclareSupportBuffer(context);
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DeclareUniformBuffers(context, context.Config.GetConstantBufferDescriptors());
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DeclareStorageBuffers(context, context.Config.GetStorageBufferDescriptors());
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DeclareSamplers(context, context.Config.GetTextureDescriptors());
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DeclareImages(context, context.Config.GetImageDescriptors());
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DeclareInputAttributes(context, info, perPatch: false);
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DeclareOutputAttributes(context, info, perPatch: false);
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DeclareInputAttributes(context, info, perPatch: true);
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DeclareOutputAttributes(context, info, perPatch: true);
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}
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private static void DeclareLocalMemory(CodeGenContext context, int size)
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{
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context.LocalMemory = DeclareMemory(context, StorageClass.Private, size);
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}
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private static void DeclareSharedMemory(CodeGenContext context, int size)
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{
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context.SharedMemory = DeclareMemory(context, StorageClass.Workgroup, size);
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}
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private static SpvInstruction DeclareMemory(CodeGenContext context, StorageClass storage, int size)
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{
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var arrayType = context.TypeArray(context.TypeU32(), context.Constant(context.TypeU32(), size));
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var pointerType = context.TypePointer(storage, arrayType);
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var variable = context.Variable(pointerType, storage);
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context.AddGlobalVariable(variable);
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return variable;
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}
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private static void DeclareSupportBuffer(CodeGenContext context)
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{
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if (!context.Config.Stage.SupportsRenderScale() && !(context.Config.LastInVertexPipeline && context.Config.GpuAccessor.QueryViewportTransformDisable()))
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{
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return;
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}
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var isBgraArrayType = context.TypeArray(context.TypeU32(), context.Constant(context.TypeU32(), SupportBuffer.FragmentIsBgraCount));
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var viewportInverseVectorType = context.TypeVector(context.TypeFP32(), 4);
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var renderScaleArrayType = context.TypeArray(context.TypeFP32(), context.Constant(context.TypeU32(), SupportBuffer.RenderScaleMaxCount));
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context.Decorate(isBgraArrayType, Decoration.ArrayStride, (LiteralInteger)SupportBuffer.FieldSize);
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context.Decorate(renderScaleArrayType, Decoration.ArrayStride, (LiteralInteger)SupportBuffer.FieldSize);
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var supportBufferStructType = context.TypeStruct(false, context.TypeU32(), isBgraArrayType, viewportInverseVectorType, context.TypeS32(), renderScaleArrayType);
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context.MemberDecorate(supportBufferStructType, 0, Decoration.Offset, (LiteralInteger)SupportBuffer.FragmentAlphaTestOffset);
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context.MemberDecorate(supportBufferStructType, 1, Decoration.Offset, (LiteralInteger)SupportBuffer.FragmentIsBgraOffset);
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context.MemberDecorate(supportBufferStructType, 2, Decoration.Offset, (LiteralInteger)SupportBuffer.ViewportInverseOffset);
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context.MemberDecorate(supportBufferStructType, 3, Decoration.Offset, (LiteralInteger)SupportBuffer.FragmentRenderScaleCountOffset);
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context.MemberDecorate(supportBufferStructType, 4, Decoration.Offset, (LiteralInteger)SupportBuffer.GraphicsRenderScaleOffset);
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context.Decorate(supportBufferStructType, Decoration.Block);
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var supportBufferPointerType = context.TypePointer(StorageClass.Uniform, supportBufferStructType);
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var supportBufferVariable = context.Variable(supportBufferPointerType, StorageClass.Uniform);
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context.Decorate(supportBufferVariable, Decoration.DescriptorSet, (LiteralInteger)0);
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context.Decorate(supportBufferVariable, Decoration.Binding, (LiteralInteger)0);
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context.AddGlobalVariable(supportBufferVariable);
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context.SupportBuffer = supportBufferVariable;
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}
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private static void DeclareUniformBuffers(CodeGenContext context, BufferDescriptor[] descriptors)
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{
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if (descriptors.Length == 0)
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{
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return;
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}
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uint ubSize = Constants.ConstantBufferSize / 16;
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var ubArrayType = context.TypeArray(context.TypeVector(context.TypeFP32(), 4), context.Constant(context.TypeU32(), ubSize), true);
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context.Decorate(ubArrayType, Decoration.ArrayStride, (LiteralInteger)16);
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var ubStructType = context.TypeStruct(true, ubArrayType);
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context.Decorate(ubStructType, Decoration.Block);
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context.MemberDecorate(ubStructType, 0, Decoration.Offset, (LiteralInteger)0);
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if (context.Config.UsedFeatures.HasFlag(FeatureFlags.CbIndexing))
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{
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int count = descriptors.Max(x => x.Slot) + 1;
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var ubStructArrayType = context.TypeArray(ubStructType, context.Constant(context.TypeU32(), count));
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var ubPointerType = context.TypePointer(StorageClass.Uniform, ubStructArrayType);
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var ubVariable = context.Variable(ubPointerType, StorageClass.Uniform);
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context.Name(ubVariable, $"{GetStagePrefix(context.Config.Stage)}_u");
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context.Decorate(ubVariable, Decoration.DescriptorSet, (LiteralInteger)0);
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context.Decorate(ubVariable, Decoration.Binding, (LiteralInteger)context.Config.FirstConstantBufferBinding);
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context.AddGlobalVariable(ubVariable);
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context.UniformBuffersArray = ubVariable;
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}
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else
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{
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var ubPointerType = context.TypePointer(StorageClass.Uniform, ubStructType);
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foreach (var descriptor in descriptors)
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{
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var ubVariable = context.Variable(ubPointerType, StorageClass.Uniform);
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context.Name(ubVariable, $"{GetStagePrefix(context.Config.Stage)}_c{descriptor.Slot}");
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context.Decorate(ubVariable, Decoration.DescriptorSet, (LiteralInteger)0);
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context.Decorate(ubVariable, Decoration.Binding, (LiteralInteger)descriptor.Binding);
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context.AddGlobalVariable(ubVariable);
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context.UniformBuffers.Add(descriptor.Slot, ubVariable);
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}
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}
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}
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private static void DeclareStorageBuffers(CodeGenContext context, BufferDescriptor[] descriptors)
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{
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if (descriptors.Length == 0)
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{
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return;
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}
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int setIndex = context.Config.Options.TargetApi == TargetApi.Vulkan ? 1 : 0;
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int count = descriptors.Max(x => x.Slot) + 1;
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var sbArrayType = context.TypeRuntimeArray(context.TypeU32());
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context.Decorate(sbArrayType, Decoration.ArrayStride, (LiteralInteger)4);
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var sbStructType = context.TypeStruct(true, sbArrayType);
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context.Decorate(sbStructType, Decoration.BufferBlock);
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context.MemberDecorate(sbStructType, 0, Decoration.Offset, (LiteralInteger)0);
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var sbStructArrayType = context.TypeArray(sbStructType, context.Constant(context.TypeU32(), count));
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var sbPointerType = context.TypePointer(StorageClass.Uniform, sbStructArrayType);
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var sbVariable = context.Variable(sbPointerType, StorageClass.Uniform);
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context.Name(sbVariable, $"{GetStagePrefix(context.Config.Stage)}_s");
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context.Decorate(sbVariable, Decoration.DescriptorSet, (LiteralInteger)setIndex);
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context.Decorate(sbVariable, Decoration.Binding, (LiteralInteger)context.Config.FirstStorageBufferBinding);
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context.AddGlobalVariable(sbVariable);
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context.StorageBuffersArray = sbVariable;
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}
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private static void DeclareSamplers(CodeGenContext context, TextureDescriptor[] descriptors)
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{
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foreach (var descriptor in descriptors)
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{
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var meta = new TextureMeta(descriptor.CbufSlot, descriptor.HandleIndex, descriptor.Format);
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if (context.Samplers.ContainsKey(meta))
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{
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continue;
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}
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int setIndex = context.Config.Options.TargetApi == TargetApi.Vulkan ? 2 : 0;
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var dim = (descriptor.Type & SamplerType.Mask) switch
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{
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SamplerType.Texture1D => Dim.Dim1D,
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SamplerType.Texture2D => Dim.Dim2D,
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SamplerType.Texture3D => Dim.Dim3D,
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SamplerType.TextureCube => Dim.Cube,
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SamplerType.TextureBuffer => Dim.Buffer,
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_ => throw new InvalidOperationException($"Invalid sampler type \"{descriptor.Type & SamplerType.Mask}\".")
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};
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var imageType = context.TypeImage(
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context.TypeFP32(),
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dim,
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descriptor.Type.HasFlag(SamplerType.Shadow),
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descriptor.Type.HasFlag(SamplerType.Array),
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descriptor.Type.HasFlag(SamplerType.Multisample),
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1,
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ImageFormat.Unknown);
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var nameSuffix = meta.CbufSlot < 0 ? $"_tcb_{meta.Handle:X}" : $"_cb{meta.CbufSlot}_{meta.Handle:X}";
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var sampledImageType = context.TypeSampledImage(imageType);
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var sampledImagePointerType = context.TypePointer(StorageClass.UniformConstant, sampledImageType);
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var sampledImageVariable = context.Variable(sampledImagePointerType, StorageClass.UniformConstant);
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context.Samplers.Add(meta, (imageType, sampledImageType, sampledImageVariable));
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context.SamplersTypes.Add(meta, descriptor.Type);
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context.Name(sampledImageVariable, $"{GetStagePrefix(context.Config.Stage)}_tex{nameSuffix}");
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context.Decorate(sampledImageVariable, Decoration.DescriptorSet, (LiteralInteger)setIndex);
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context.Decorate(sampledImageVariable, Decoration.Binding, (LiteralInteger)descriptor.Binding);
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context.AddGlobalVariable(sampledImageVariable);
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}
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}
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private static void DeclareImages(CodeGenContext context, TextureDescriptor[] descriptors)
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{
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foreach (var descriptor in descriptors)
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{
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var meta = new TextureMeta(descriptor.CbufSlot, descriptor.HandleIndex, descriptor.Format);
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if (context.Images.ContainsKey(meta))
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{
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continue;
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}
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int setIndex = context.Config.Options.TargetApi == TargetApi.Vulkan ? 3 : 0;
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var dim = GetDim(descriptor.Type);
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var imageType = context.TypeImage(
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context.GetType(meta.Format.GetComponentType().Convert()),
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dim,
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descriptor.Type.HasFlag(SamplerType.Shadow),
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descriptor.Type.HasFlag(SamplerType.Array),
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descriptor.Type.HasFlag(SamplerType.Multisample),
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AccessQualifier.ReadWrite,
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GetImageFormat(meta.Format));
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var nameSuffix = meta.CbufSlot < 0 ?
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$"_tcb_{meta.Handle:X}_{meta.Format.ToGlslFormat()}" :
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$"_cb{meta.CbufSlot}_{meta.Handle:X}_{meta.Format.ToGlslFormat()}";
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var imagePointerType = context.TypePointer(StorageClass.UniformConstant, imageType);
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var imageVariable = context.Variable(imagePointerType, StorageClass.UniformConstant);
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context.Images.Add(meta, (imageType, imageVariable));
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context.Name(imageVariable, $"{GetStagePrefix(context.Config.Stage)}_img{nameSuffix}");
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context.Decorate(imageVariable, Decoration.DescriptorSet, (LiteralInteger)setIndex);
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context.Decorate(imageVariable, Decoration.Binding, (LiteralInteger)descriptor.Binding);
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if (descriptor.Flags.HasFlag(TextureUsageFlags.ImageCoherent))
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{
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context.Decorate(imageVariable, Decoration.Coherent);
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}
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context.AddGlobalVariable(imageVariable);
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}
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}
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private static Dim GetDim(SamplerType type)
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{
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return (type & SamplerType.Mask) switch
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{
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SamplerType.Texture1D => Dim.Dim1D,
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SamplerType.Texture2D => Dim.Dim2D,
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SamplerType.Texture3D => Dim.Dim3D,
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SamplerType.TextureCube => Dim.Cube,
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SamplerType.TextureBuffer => Dim.Buffer,
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_ => throw new ArgumentException($"Invalid sampler type \"{type & SamplerType.Mask}\".")
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};
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}
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private static ImageFormat GetImageFormat(TextureFormat format)
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{
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return format switch
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{
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TextureFormat.Unknown => ImageFormat.Unknown,
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TextureFormat.R8Unorm => ImageFormat.R8,
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TextureFormat.R8Snorm => ImageFormat.R8Snorm,
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TextureFormat.R8Uint => ImageFormat.R8ui,
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TextureFormat.R8Sint => ImageFormat.R8i,
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TextureFormat.R16Float => ImageFormat.R16f,
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TextureFormat.R16Unorm => ImageFormat.R16,
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TextureFormat.R16Snorm => ImageFormat.R16Snorm,
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TextureFormat.R16Uint => ImageFormat.R16ui,
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TextureFormat.R16Sint => ImageFormat.R16i,
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TextureFormat.R32Float => ImageFormat.R32f,
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TextureFormat.R32Uint => ImageFormat.R32ui,
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TextureFormat.R32Sint => ImageFormat.R32i,
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TextureFormat.R8G8Unorm => ImageFormat.Rg8,
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TextureFormat.R8G8Snorm => ImageFormat.Rg8Snorm,
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TextureFormat.R8G8Uint => ImageFormat.Rg8ui,
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TextureFormat.R8G8Sint => ImageFormat.Rg8i,
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TextureFormat.R16G16Float => ImageFormat.Rg16f,
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TextureFormat.R16G16Unorm => ImageFormat.Rg16,
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TextureFormat.R16G16Snorm => ImageFormat.Rg16Snorm,
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TextureFormat.R16G16Uint => ImageFormat.Rg16ui,
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TextureFormat.R16G16Sint => ImageFormat.Rg16i,
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TextureFormat.R32G32Float => ImageFormat.Rg32f,
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TextureFormat.R32G32Uint => ImageFormat.Rg32ui,
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TextureFormat.R32G32Sint => ImageFormat.Rg32i,
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TextureFormat.R8G8B8A8Unorm => ImageFormat.Rgba8,
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TextureFormat.R8G8B8A8Snorm => ImageFormat.Rgba8Snorm,
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TextureFormat.R8G8B8A8Uint => ImageFormat.Rgba8ui,
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TextureFormat.R8G8B8A8Sint => ImageFormat.Rgba8i,
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TextureFormat.R16G16B16A16Float => ImageFormat.Rgba16f,
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TextureFormat.R16G16B16A16Unorm => ImageFormat.Rgba16,
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TextureFormat.R16G16B16A16Snorm => ImageFormat.Rgba16Snorm,
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TextureFormat.R16G16B16A16Uint => ImageFormat.Rgba16ui,
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TextureFormat.R16G16B16A16Sint => ImageFormat.Rgba16i,
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TextureFormat.R32G32B32A32Float => ImageFormat.Rgba32f,
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TextureFormat.R32G32B32A32Uint => ImageFormat.Rgba32ui,
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TextureFormat.R32G32B32A32Sint => ImageFormat.Rgba32i,
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TextureFormat.R10G10B10A2Unorm => ImageFormat.Rgb10A2,
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TextureFormat.R10G10B10A2Uint => ImageFormat.Rgb10a2ui,
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TextureFormat.R11G11B10Float => ImageFormat.R11fG11fB10f,
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_ => throw new ArgumentException($"Invalid texture format \"{format}\".")
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};
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}
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private static void DeclareInputAttributes(CodeGenContext context, StructuredProgramInfo info, bool perPatch)
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{
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bool iaIndexing = context.Config.UsedFeatures.HasFlag(FeatureFlags.IaIndexing);
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var inputs = perPatch ? info.InputsPerPatch : info.Inputs;
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foreach (int attr in inputs)
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{
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if (!AttributeInfo.Validate(context.Config, attr, isOutAttr: false, perPatch))
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{
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continue;
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}
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bool isUserAttr = attr >= AttributeConsts.UserAttributeBase && attr < AttributeConsts.UserAttributeEnd;
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if (iaIndexing && isUserAttr && !perPatch)
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{
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if (context.InputsArray == null)
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{
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var attrType = context.TypeVector(context.TypeFP32(), (LiteralInteger)4);
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attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), (LiteralInteger)MaxAttributes));
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if (context.Config.Stage == ShaderStage.Geometry)
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{
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attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), (LiteralInteger)context.InputVertices));
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}
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var spvType = context.TypePointer(StorageClass.Input, attrType);
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var spvVar = context.Variable(spvType, StorageClass.Input);
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if (context.Config.PassthroughAttributes != 0 && context.Config.GpuAccessor.QueryHostSupportsGeometryShaderPassthrough())
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{
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context.Decorate(spvVar, Decoration.PassthroughNV);
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}
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context.Decorate(spvVar, Decoration.Location, (LiteralInteger)0);
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context.AddGlobalVariable(spvVar);
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context.InputsArray = spvVar;
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}
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}
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else
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{
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PixelImap iq = PixelImap.Unused;
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if (context.Config.Stage == ShaderStage.Fragment &&
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attr >= AttributeConsts.UserAttributeBase &&
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attr < AttributeConsts.UserAttributeEnd)
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{
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iq = context.Config.ImapTypes[(attr - AttributeConsts.UserAttributeBase) / 16].GetFirstUsedType();
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}
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|
DeclareInputOrOutput(context, attr, perPatch, isOutAttr: false, iq);
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void DeclareOutputAttributes(CodeGenContext context, StructuredProgramInfo info, bool perPatch)
|
|
{
|
|
bool oaIndexing = context.Config.UsedFeatures.HasFlag(FeatureFlags.OaIndexing);
|
|
var outputs = perPatch ? info.OutputsPerPatch : info.Outputs;
|
|
|
|
foreach (int attr in outputs)
|
|
{
|
|
if (!AttributeInfo.Validate(context.Config, attr, isOutAttr: true, perPatch))
|
|
{
|
|
continue;
|
|
}
|
|
|
|
bool isUserAttr = attr >= AttributeConsts.UserAttributeBase && attr < AttributeConsts.UserAttributeEnd;
|
|
|
|
if (oaIndexing && isUserAttr && !perPatch)
|
|
{
|
|
if (context.OutputsArray == null)
|
|
{
|
|
var attrType = context.TypeVector(context.TypeFP32(), (LiteralInteger)4);
|
|
attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), (LiteralInteger)MaxAttributes));
|
|
|
|
if (context.Config.Stage == ShaderStage.TessellationControl)
|
|
{
|
|
attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), context.Config.ThreadsPerInputPrimitive));
|
|
}
|
|
|
|
var spvType = context.TypePointer(StorageClass.Output, attrType);
|
|
var spvVar = context.Variable(spvType, StorageClass.Output);
|
|
|
|
context.Decorate(spvVar, Decoration.Location, (LiteralInteger)0);
|
|
|
|
context.AddGlobalVariable(spvVar);
|
|
context.OutputsArray = spvVar;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
DeclareOutputAttribute(context, attr, perPatch);
|
|
}
|
|
}
|
|
|
|
if (context.Config.Stage == ShaderStage.Vertex)
|
|
{
|
|
DeclareOutputAttribute(context, AttributeConsts.PositionX, perPatch: false);
|
|
}
|
|
}
|
|
|
|
private static void DeclareOutputAttribute(CodeGenContext context, int attr, bool perPatch)
|
|
{
|
|
DeclareInputOrOutput(context, attr, perPatch, isOutAttr: true);
|
|
}
|
|
|
|
public static void DeclareInvocationId(CodeGenContext context)
|
|
{
|
|
DeclareInputOrOutput(context, AttributeConsts.LaneId, perPatch: false, isOutAttr: false);
|
|
}
|
|
|
|
private static void DeclareInputOrOutput(CodeGenContext context, int attr, bool perPatch, bool isOutAttr, PixelImap iq = PixelImap.Unused)
|
|
{
|
|
bool isUserAttr = attr >= AttributeConsts.UserAttributeBase && attr < AttributeConsts.UserAttributeEnd;
|
|
if (isUserAttr && context.Config.TransformFeedbackEnabled && !perPatch &&
|
|
((isOutAttr && context.Config.LastInVertexPipeline) ||
|
|
(!isOutAttr && context.Config.Stage == ShaderStage.Fragment)))
|
|
{
|
|
DeclareInputOrOutput(context, attr, (attr >> 2) & 3, isOutAttr, iq);
|
|
return;
|
|
}
|
|
|
|
var dict = perPatch
|
|
? (isOutAttr ? context.OutputsPerPatch : context.InputsPerPatch)
|
|
: (isOutAttr ? context.Outputs : context.Inputs);
|
|
|
|
var attrInfo = perPatch
|
|
? AttributeInfo.FromPatch(context.Config, attr, isOutAttr)
|
|
: AttributeInfo.From(context.Config, attr, isOutAttr);
|
|
|
|
if (dict.ContainsKey(attrInfo.BaseValue))
|
|
{
|
|
return;
|
|
}
|
|
|
|
var storageClass = isOutAttr ? StorageClass.Output : StorageClass.Input;
|
|
var attrType = context.GetType(attrInfo.Type, attrInfo.Length);
|
|
bool builtInPassthrough = false;
|
|
|
|
if (AttributeInfo.IsArrayAttributeSpirv(context.Config.Stage, isOutAttr) && !perPatch && (!attrInfo.IsBuiltin || AttributeInfo.IsArrayBuiltIn(attr)))
|
|
{
|
|
int arraySize = context.Config.Stage == ShaderStage.Geometry ? context.InputVertices : 32;
|
|
attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), (LiteralInteger)arraySize));
|
|
|
|
if (context.Config.GpPassthrough && context.Config.GpuAccessor.QueryHostSupportsGeometryShaderPassthrough())
|
|
{
|
|
builtInPassthrough = true;
|
|
}
|
|
}
|
|
|
|
if (context.Config.Stage == ShaderStage.TessellationControl && isOutAttr && !perPatch)
|
|
{
|
|
attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), context.Config.ThreadsPerInputPrimitive));
|
|
}
|
|
|
|
var spvType = context.TypePointer(storageClass, attrType);
|
|
var spvVar = context.Variable(spvType, storageClass);
|
|
|
|
if (builtInPassthrough)
|
|
{
|
|
context.Decorate(spvVar, Decoration.PassthroughNV);
|
|
}
|
|
|
|
if (attrInfo.IsBuiltin)
|
|
{
|
|
if (perPatch)
|
|
{
|
|
context.Decorate(spvVar, Decoration.Patch);
|
|
}
|
|
|
|
context.Decorate(spvVar, Decoration.BuiltIn, (LiteralInteger)GetBuiltIn(context, attrInfo.BaseValue));
|
|
|
|
if (context.Config.TransformFeedbackEnabled && context.Config.LastInVertexPipeline && isOutAttr)
|
|
{
|
|
var tfOutput = context.GetTransformFeedbackOutput(attrInfo.BaseValue);
|
|
if (tfOutput.Valid)
|
|
{
|
|
context.Decorate(spvVar, Decoration.XfbBuffer, (LiteralInteger)tfOutput.Buffer);
|
|
context.Decorate(spvVar, Decoration.XfbStride, (LiteralInteger)tfOutput.Stride);
|
|
context.Decorate(spvVar, Decoration.Offset, (LiteralInteger)tfOutput.Offset);
|
|
}
|
|
}
|
|
}
|
|
else if (perPatch)
|
|
{
|
|
context.Decorate(spvVar, Decoration.Patch);
|
|
|
|
int location = context.Config.GetPerPatchAttributeLocation((attr - AttributeConsts.UserAttributePerPatchBase) / 16);
|
|
|
|
context.Decorate(spvVar, Decoration.Location, (LiteralInteger)location);
|
|
}
|
|
else if (isUserAttr)
|
|
{
|
|
int location = (attr - AttributeConsts.UserAttributeBase) / 16;
|
|
|
|
context.Decorate(spvVar, Decoration.Location, (LiteralInteger)location);
|
|
|
|
if (!isOutAttr)
|
|
{
|
|
if (!perPatch &&
|
|
(context.Config.PassthroughAttributes & (1 << location)) != 0 &&
|
|
context.Config.GpuAccessor.QueryHostSupportsGeometryShaderPassthrough())
|
|
{
|
|
context.Decorate(spvVar, Decoration.PassthroughNV);
|
|
}
|
|
|
|
switch (iq)
|
|
{
|
|
case PixelImap.Constant:
|
|
context.Decorate(spvVar, Decoration.Flat);
|
|
break;
|
|
case PixelImap.ScreenLinear:
|
|
context.Decorate(spvVar, Decoration.NoPerspective);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else if (attr >= AttributeConsts.FragmentOutputColorBase && attr < AttributeConsts.FragmentOutputColorEnd)
|
|
{
|
|
int location = (attr - AttributeConsts.FragmentOutputColorBase) / 16;
|
|
context.Decorate(spvVar, Decoration.Location, (LiteralInteger)location);
|
|
}
|
|
|
|
context.AddGlobalVariable(spvVar);
|
|
dict.Add(attrInfo.BaseValue, spvVar);
|
|
}
|
|
|
|
private static void DeclareInputOrOutput(CodeGenContext context, int attr, int component, bool isOutAttr, PixelImap iq = PixelImap.Unused)
|
|
{
|
|
var dict = isOutAttr ? context.Outputs : context.Inputs;
|
|
var attrInfo = AttributeInfo.From(context.Config, attr, isOutAttr);
|
|
|
|
if (dict.ContainsKey(attr))
|
|
{
|
|
return;
|
|
}
|
|
|
|
var storageClass = isOutAttr ? StorageClass.Output : StorageClass.Input;
|
|
var attrType = context.GetType(attrInfo.Type & AggregateType.ElementTypeMask);
|
|
|
|
if (AttributeInfo.IsArrayAttributeSpirv(context.Config.Stage, isOutAttr) && (!attrInfo.IsBuiltin || AttributeInfo.IsArrayBuiltIn(attr)))
|
|
{
|
|
int arraySize = context.Config.Stage == ShaderStage.Geometry ? context.InputVertices : 32;
|
|
attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), (LiteralInteger)arraySize));
|
|
}
|
|
|
|
if (context.Config.Stage == ShaderStage.TessellationControl && isOutAttr)
|
|
{
|
|
attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), context.Config.ThreadsPerInputPrimitive));
|
|
}
|
|
|
|
var spvType = context.TypePointer(storageClass, attrType);
|
|
var spvVar = context.Variable(spvType, storageClass);
|
|
|
|
Debug.Assert(attr >= AttributeConsts.UserAttributeBase && attr < AttributeConsts.UserAttributeEnd);
|
|
int location = (attr - AttributeConsts.UserAttributeBase) / 16;
|
|
|
|
context.Decorate(spvVar, Decoration.Location, (LiteralInteger)location);
|
|
context.Decorate(spvVar, Decoration.Component, (LiteralInteger)component);
|
|
|
|
if (isOutAttr)
|
|
{
|
|
var tfOutput = context.GetTransformFeedbackOutput(location, component);
|
|
if (tfOutput.Valid)
|
|
{
|
|
context.Decorate(spvVar, Decoration.XfbBuffer, (LiteralInteger)tfOutput.Buffer);
|
|
context.Decorate(spvVar, Decoration.XfbStride, (LiteralInteger)tfOutput.Stride);
|
|
context.Decorate(spvVar, Decoration.Offset, (LiteralInteger)tfOutput.Offset);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ((context.Config.PassthroughAttributes & (1 << location)) != 0 &&
|
|
context.Config.GpuAccessor.QueryHostSupportsGeometryShaderPassthrough())
|
|
{
|
|
context.Decorate(spvVar, Decoration.PassthroughNV);
|
|
}
|
|
|
|
switch (iq)
|
|
{
|
|
case PixelImap.Constant:
|
|
context.Decorate(spvVar, Decoration.Flat);
|
|
break;
|
|
case PixelImap.ScreenLinear:
|
|
context.Decorate(spvVar, Decoration.NoPerspective);
|
|
break;
|
|
}
|
|
}
|
|
|
|
context.AddGlobalVariable(spvVar);
|
|
dict.Add(attr, spvVar);
|
|
}
|
|
|
|
private static BuiltIn GetBuiltIn(CodeGenContext context, int attr)
|
|
{
|
|
return attr switch
|
|
{
|
|
AttributeConsts.TessLevelOuter0 => BuiltIn.TessLevelOuter,
|
|
AttributeConsts.TessLevelInner0 => BuiltIn.TessLevelInner,
|
|
AttributeConsts.Layer => BuiltIn.Layer,
|
|
AttributeConsts.ViewportIndex => BuiltIn.ViewportIndex,
|
|
AttributeConsts.PointSize => BuiltIn.PointSize,
|
|
AttributeConsts.PositionX => context.Config.Stage == ShaderStage.Fragment ? BuiltIn.FragCoord : BuiltIn.Position,
|
|
AttributeConsts.ClipDistance0 => BuiltIn.ClipDistance,
|
|
AttributeConsts.PointCoordX => BuiltIn.PointCoord,
|
|
AttributeConsts.TessCoordX => BuiltIn.TessCoord,
|
|
AttributeConsts.InstanceId => BuiltIn.InstanceId, // FIXME: Invalid
|
|
AttributeConsts.VertexId => BuiltIn.VertexId, // FIXME: Invalid
|
|
AttributeConsts.FrontFacing => BuiltIn.FrontFacing,
|
|
AttributeConsts.FragmentOutputDepth => BuiltIn.FragDepth,
|
|
AttributeConsts.ThreadKill => BuiltIn.HelperInvocation,
|
|
AttributeConsts.ThreadIdX => BuiltIn.LocalInvocationId,
|
|
AttributeConsts.CtaIdX => BuiltIn.WorkgroupId,
|
|
AttributeConsts.LaneId => BuiltIn.SubgroupLocalInvocationId,
|
|
AttributeConsts.InvocationId => BuiltIn.InvocationId,
|
|
AttributeConsts.PrimitiveId => BuiltIn.PrimitiveId,
|
|
AttributeConsts.PatchVerticesIn => BuiltIn.PatchVertices,
|
|
AttributeConsts.EqMask => BuiltIn.SubgroupEqMask,
|
|
AttributeConsts.GeMask => BuiltIn.SubgroupGeMask,
|
|
AttributeConsts.GtMask => BuiltIn.SubgroupGtMask,
|
|
AttributeConsts.LeMask => BuiltIn.SubgroupLeMask,
|
|
AttributeConsts.LtMask => BuiltIn.SubgroupLtMask,
|
|
AttributeConsts.SupportBlockViewInverseX => BuiltIn.Position,
|
|
AttributeConsts.SupportBlockViewInverseY => BuiltIn.Position,
|
|
_ => throw new ArgumentException($"Invalid attribute number 0x{attr:X}.")
|
|
};
|
|
}
|
|
|
|
private static string GetStagePrefix(ShaderStage stage)
|
|
{
|
|
return StagePrefixes[(int)stage];
|
|
}
|
|
}
|
|
}
|