671 lines
27 KiB
C#
671 lines
27 KiB
C#
using Ryujinx.Graphics.Shader.CodeGen;
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using Ryujinx.Graphics.Shader.CodeGen.Glsl;
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using Ryujinx.Graphics.Shader.CodeGen.Spirv;
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using Ryujinx.Graphics.Shader.Decoders;
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using Ryujinx.Graphics.Shader.IntermediateRepresentation;
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using Ryujinx.Graphics.Shader.StructuredIr;
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using Ryujinx.Graphics.Shader.Translation.Optimizations;
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using Ryujinx.Graphics.Shader.Translation.Transforms;
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using System;
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using System.Collections.Generic;
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using System.Numerics;
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using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
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using static Ryujinx.Graphics.Shader.Translation.Translator;
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namespace Ryujinx.Graphics.Shader.Translation
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{
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public class TranslatorContext
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{
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private readonly DecodedProgram _program;
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private readonly int _localMemorySize;
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private IoUsage _vertexOutput;
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public ulong Address { get; }
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public int Size { get; }
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public int Cb1DataSize => _program.Cb1DataSize;
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internal AttributeUsage AttributeUsage => _program.AttributeUsage;
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internal ShaderDefinitions Definitions { get; }
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public ShaderStage Stage => Definitions.Stage;
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internal IGpuAccessor GpuAccessor { get; }
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internal TranslationOptions Options { get; }
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private bool IsTransformFeedbackEmulated => !GpuAccessor.QueryHostSupportsTransformFeedback() && GpuAccessor.QueryTransformFeedbackEnabled();
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public bool HasStore => _program.UsedFeatures.HasFlag(FeatureFlags.Store) || (IsTransformFeedbackEmulated && Definitions.LastInVertexPipeline);
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public bool LayerOutputWritten { get; private set; }
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public int LayerOutputAttribute { get; private set; }
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internal TranslatorContext(
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ulong address,
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int size,
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int localMemorySize,
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ShaderDefinitions definitions,
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IGpuAccessor gpuAccessor,
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TranslationOptions options,
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DecodedProgram program)
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{
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Address = address;
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Size = size;
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_program = program;
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_localMemorySize = localMemorySize;
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_vertexOutput = new IoUsage(FeatureFlags.None, 0, -1);
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Definitions = definitions;
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GpuAccessor = gpuAccessor;
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Options = options;
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}
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private static bool IsLoadUserDefined(Operation operation)
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{
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// TODO: Check if sources count match and all sources are constant.
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return operation.Inst == Instruction.Load && (IoVariable)operation.GetSource(0).Value == IoVariable.UserDefined;
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}
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private static bool IsStoreUserDefined(Operation operation)
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{
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// TODO: Check if sources count match and all sources are constant.
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return operation.Inst == Instruction.Store && (IoVariable)operation.GetSource(0).Value == IoVariable.UserDefined;
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}
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private static FunctionCode[] Combine(FunctionCode[] a, FunctionCode[] b, int aStart)
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{
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// Here we combine two shaders.
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// For shader A:
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// - All user attribute stores on shader A are turned into copies to a
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// temporary variable. It's assumed that shader B will consume them.
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// - All return instructions are turned into branch instructions, the
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// branch target being the start of the shader B code.
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// For shader B:
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// - All user attribute loads on shader B are turned into copies from a
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// temporary variable, as long that attribute is written by shader A.
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FunctionCode[] output = new FunctionCode[a.Length + b.Length - 1];
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List<Operation> ops = new(a.Length + b.Length);
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Operand[] temps = new Operand[AttributeConsts.UserAttributesCount * 4];
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Operand lblB = Label();
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for (int index = aStart; index < a[0].Code.Length; index++)
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{
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Operation operation = a[0].Code[index];
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if (IsStoreUserDefined(operation))
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{
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int tIndex = operation.GetSource(1).Value * 4 + operation.GetSource(2).Value;
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Operand temp = temps[tIndex];
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if (temp == null)
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{
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temp = Local();
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temps[tIndex] = temp;
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}
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operation.Dest = temp;
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operation.TurnIntoCopy(operation.GetSource(operation.SourcesCount - 1));
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}
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if (operation.Inst == Instruction.Return)
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{
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ops.Add(new Operation(Instruction.Branch, lblB));
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}
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else
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{
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ops.Add(operation);
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}
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}
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ops.Add(new Operation(Instruction.MarkLabel, lblB));
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for (int index = 0; index < b[0].Code.Length; index++)
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{
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Operation operation = b[0].Code[index];
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if (IsLoadUserDefined(operation))
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{
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int tIndex = operation.GetSource(1).Value * 4 + operation.GetSource(2).Value;
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Operand temp = temps[tIndex];
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if (temp != null)
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{
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operation.TurnIntoCopy(temp);
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}
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}
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ops.Add(operation);
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}
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output[0] = new FunctionCode(ops.ToArray());
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for (int i = 1; i < a.Length; i++)
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{
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output[i] = a[i];
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}
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for (int i = 1; i < b.Length; i++)
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{
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output[a.Length + i - 1] = b[i];
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}
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return output;
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}
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internal int GetDepthRegister()
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{
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// The depth register is always two registers after the last color output.
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return BitOperations.PopCount((uint)Definitions.OmapTargets) + 1;
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}
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public void SetLayerOutputAttribute(int attr)
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{
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LayerOutputWritten = true;
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LayerOutputAttribute = attr;
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}
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public void SetLastInVertexPipeline()
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{
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Definitions.LastInVertexPipeline = true;
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}
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public void SetNextStage(TranslatorContext nextStage)
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{
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AttributeUsage.MergeFromtNextStage(
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Definitions.GpPassthrough,
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nextStage._program.UsedFeatures.HasFlag(FeatureFlags.FixedFuncAttr),
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nextStage.AttributeUsage);
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// We don't consider geometry shaders using the geometry shader passthrough feature
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// as being the last because when this feature is used, it can't actually modify any of the outputs,
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// so the stage that comes before it is the last one that can do modifications.
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if (nextStage.Definitions.Stage != ShaderStage.Fragment &&
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(nextStage.Definitions.Stage != ShaderStage.Geometry || !nextStage.Definitions.GpPassthrough))
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{
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Definitions.LastInVertexPipeline = false;
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}
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}
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public ShaderProgram Translate(bool asCompute = false)
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{
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ResourceManager resourceManager = CreateResourceManager(asCompute);
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bool usesLocalMemory = _program.UsedFeatures.HasFlag(FeatureFlags.LocalMemory);
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resourceManager.SetCurrentLocalMemory(_localMemorySize, usesLocalMemory);
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if (Stage == ShaderStage.Compute)
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{
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bool usesSharedMemory = _program.UsedFeatures.HasFlag(FeatureFlags.SharedMemory);
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resourceManager.SetCurrentSharedMemory(GpuAccessor.QueryComputeSharedMemorySize(), usesSharedMemory);
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}
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FunctionCode[] code = EmitShader(this, resourceManager, _program, asCompute, initializeOutputs: true, out _);
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return Translate(code, resourceManager, _program.UsedFeatures, _program.ClipDistancesWritten, asCompute);
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}
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public ShaderProgram Translate(TranslatorContext other, bool asCompute = false)
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{
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ResourceManager resourceManager = CreateResourceManager(asCompute);
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bool usesLocalMemory = _program.UsedFeatures.HasFlag(FeatureFlags.LocalMemory);
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resourceManager.SetCurrentLocalMemory(_localMemorySize, usesLocalMemory);
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FunctionCode[] code = EmitShader(this, resourceManager, _program, asCompute, initializeOutputs: false, out _);
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bool otherUsesLocalMemory = other._program.UsedFeatures.HasFlag(FeatureFlags.LocalMemory);
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resourceManager.SetCurrentLocalMemory(other._localMemorySize, otherUsesLocalMemory);
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FunctionCode[] otherCode = EmitShader(other, resourceManager, other._program, asCompute, initializeOutputs: true, out int aStart);
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code = Combine(otherCode, code, aStart);
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return Translate(
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code,
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resourceManager,
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_program.UsedFeatures | other._program.UsedFeatures,
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(byte)(_program.ClipDistancesWritten | other._program.ClipDistancesWritten),
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asCompute);
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}
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private ShaderProgram Translate(FunctionCode[] functions, ResourceManager resourceManager, FeatureFlags usedFeatures, byte clipDistancesWritten, bool asCompute)
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{
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if (asCompute)
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{
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usedFeatures |= FeatureFlags.VtgAsCompute;
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}
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var cfgs = new ControlFlowGraph[functions.Length];
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var frus = new RegisterUsage.FunctionRegisterUsage[functions.Length];
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for (int i = 0; i < functions.Length; i++)
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{
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cfgs[i] = ControlFlowGraph.Create(functions[i].Code);
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if (i != 0)
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{
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frus[i] = RegisterUsage.RunPass(cfgs[i]);
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}
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}
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List<Function> funcs = new(functions.Length);
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for (int i = 0; i < functions.Length; i++)
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{
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funcs.Add(null);
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}
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HelperFunctionManager hfm = new(funcs, Definitions.Stage);
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for (int i = 0; i < functions.Length; i++)
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{
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var cfg = cfgs[i];
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int inArgumentsCount = 0;
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int outArgumentsCount = 0;
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if (i != 0)
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{
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var fru = frus[i];
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inArgumentsCount = fru.InArguments.Length;
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outArgumentsCount = fru.OutArguments.Length;
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}
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if (cfg.Blocks.Length != 0)
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{
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RegisterUsage.FixupCalls(cfg.Blocks, frus);
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Dominance.FindDominators(cfg);
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Dominance.FindDominanceFrontiers(cfg.Blocks);
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Ssa.Rename(cfg.Blocks);
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TransformContext context = new(
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hfm,
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cfg.Blocks,
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Definitions,
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resourceManager,
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GpuAccessor,
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Options.TargetLanguage,
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Definitions.Stage,
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ref usedFeatures);
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Optimizer.RunPass(context);
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TransformPasses.RunPass(context);
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}
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funcs[i] = new Function(cfg.Blocks, $"fun{i}", false, inArgumentsCount, outArgumentsCount);
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}
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return Generate(
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funcs,
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AttributeUsage,
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GetDefinitions(asCompute),
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Definitions,
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resourceManager,
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usedFeatures,
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clipDistancesWritten);
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}
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private ShaderProgram Generate(
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IReadOnlyList<Function> funcs,
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AttributeUsage attributeUsage,
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ShaderDefinitions definitions,
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ShaderDefinitions originalDefinitions,
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ResourceManager resourceManager,
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FeatureFlags usedFeatures,
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byte clipDistancesWritten)
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{
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var sInfo = StructuredProgram.MakeStructuredProgram(
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funcs,
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attributeUsage,
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definitions,
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resourceManager,
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Options.TargetLanguage,
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Options.Flags.HasFlag(TranslationFlags.DebugMode));
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int geometryVerticesPerPrimitive = Definitions.OutputTopology switch
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{
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OutputTopology.LineStrip => 2,
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OutputTopology.TriangleStrip => 3,
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_ => 1
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};
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var info = new ShaderProgramInfo(
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resourceManager.GetConstantBufferDescriptors(),
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resourceManager.GetStorageBufferDescriptors(),
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resourceManager.GetTextureDescriptors(),
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resourceManager.GetImageDescriptors(),
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originalDefinitions.Stage,
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geometryVerticesPerPrimitive,
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originalDefinitions.MaxOutputVertices,
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originalDefinitions.ThreadsPerInputPrimitive,
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usedFeatures.HasFlag(FeatureFlags.FragCoordXY),
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usedFeatures.HasFlag(FeatureFlags.InstanceId),
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usedFeatures.HasFlag(FeatureFlags.DrawParameters),
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usedFeatures.HasFlag(FeatureFlags.RtLayer),
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clipDistancesWritten,
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originalDefinitions.OmapTargets);
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var hostCapabilities = new HostCapabilities(
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GpuAccessor.QueryHostReducedPrecision(),
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GpuAccessor.QueryHostSupportsFragmentShaderInterlock(),
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GpuAccessor.QueryHostSupportsFragmentShaderOrderingIntel(),
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GpuAccessor.QueryHostSupportsGeometryShaderPassthrough(),
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GpuAccessor.QueryHostSupportsShaderBallot(),
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GpuAccessor.QueryHostSupportsShaderBarrierDivergence(),
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GpuAccessor.QueryHostSupportsTextureShadowLod(),
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GpuAccessor.QueryHostSupportsViewportMask());
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var parameters = new CodeGenParameters(attributeUsage, definitions, resourceManager.Properties, hostCapabilities, GpuAccessor, Options.TargetApi);
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return Options.TargetLanguage switch
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{
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TargetLanguage.Glsl => new ShaderProgram(info, TargetLanguage.Glsl, GlslGenerator.Generate(sInfo, parameters)),
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TargetLanguage.Spirv => new ShaderProgram(info, TargetLanguage.Spirv, SpirvGenerator.Generate(sInfo, parameters)),
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_ => throw new NotImplementedException(Options.TargetLanguage.ToString()),
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};
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}
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private ResourceManager CreateResourceManager(bool vertexAsCompute)
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{
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ResourceManager resourceManager = new(Definitions.Stage, GpuAccessor, GetResourceReservations());
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if (IsTransformFeedbackEmulated)
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{
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StructureType tfeDataStruct = new(new StructureField[]
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{
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new StructureField(AggregateType.Array | AggregateType.U32, "data", 0)
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});
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for (int i = 0; i < ResourceReservations.TfeBuffersCount; i++)
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{
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int binding = resourceManager.Reservations.GetTfeBufferStorageBufferBinding(i);
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BufferDefinition tfeDataBuffer = new(BufferLayout.Std430, 1, binding, $"tfe_data{i}", tfeDataStruct);
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resourceManager.Properties.AddOrUpdateStorageBuffer(tfeDataBuffer);
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}
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}
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if (vertexAsCompute)
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{
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int vertexInfoCbBinding = resourceManager.Reservations.VertexInfoConstantBufferBinding;
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BufferDefinition vertexInfoBuffer = new(BufferLayout.Std140, 0, vertexInfoCbBinding, "vb_info", VertexInfoBuffer.GetStructureType());
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resourceManager.Properties.AddOrUpdateConstantBuffer(vertexInfoBuffer);
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StructureType vertexOutputStruct = new(new StructureField[]
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{
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new StructureField(AggregateType.Array | AggregateType.FP32, "data", 0)
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});
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int vertexOutputSbBinding = resourceManager.Reservations.VertexOutputStorageBufferBinding;
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BufferDefinition vertexOutputBuffer = new(BufferLayout.Std430, 1, vertexOutputSbBinding, "vertex_output", vertexOutputStruct);
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resourceManager.Properties.AddOrUpdateStorageBuffer(vertexOutputBuffer);
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if (Stage == ShaderStage.Vertex)
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{
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int ibBinding = resourceManager.Reservations.IndexBufferTextureBinding;
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TextureDefinition indexBuffer = new(2, ibBinding, "ib_data", SamplerType.TextureBuffer, TextureFormat.Unknown, TextureUsageFlags.None);
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resourceManager.Properties.AddOrUpdateTexture(indexBuffer);
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int inputMap = _program.AttributeUsage.UsedInputAttributes;
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while (inputMap != 0)
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{
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int location = BitOperations.TrailingZeroCount(inputMap);
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int binding = resourceManager.Reservations.GetVertexBufferTextureBinding(location);
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TextureDefinition vaBuffer = new(2, binding, $"vb_data{location}", SamplerType.TextureBuffer, TextureFormat.Unknown, TextureUsageFlags.None);
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resourceManager.Properties.AddOrUpdateTexture(vaBuffer);
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inputMap &= ~(1 << location);
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}
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}
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else if (Stage == ShaderStage.Geometry)
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{
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int trbBinding = resourceManager.Reservations.TopologyRemapBufferTextureBinding;
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TextureDefinition remapBuffer = new(2, trbBinding, "trb_data", SamplerType.TextureBuffer, TextureFormat.Unknown, TextureUsageFlags.None);
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resourceManager.Properties.AddOrUpdateTexture(remapBuffer);
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int geometryVbOutputSbBinding = resourceManager.Reservations.GeometryVertexOutputStorageBufferBinding;
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BufferDefinition geometryVbOutputBuffer = new(BufferLayout.Std430, 1, geometryVbOutputSbBinding, "geometry_vb_output", vertexOutputStruct);
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resourceManager.Properties.AddOrUpdateStorageBuffer(geometryVbOutputBuffer);
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StructureType geometryIbOutputStruct = new(new StructureField[]
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{
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new StructureField(AggregateType.Array | AggregateType.U32, "data", 0)
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});
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int geometryIbOutputSbBinding = resourceManager.Reservations.GeometryIndexOutputStorageBufferBinding;
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BufferDefinition geometryIbOutputBuffer = new(BufferLayout.Std430, 1, geometryIbOutputSbBinding, "geometry_ib_output", geometryIbOutputStruct);
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resourceManager.Properties.AddOrUpdateStorageBuffer(geometryIbOutputBuffer);
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}
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resourceManager.SetVertexAsComputeLocalMemories(Definitions.Stage, Definitions.InputTopology);
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}
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return resourceManager;
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}
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private ShaderDefinitions GetDefinitions(bool vertexAsCompute)
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{
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if (vertexAsCompute)
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{
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return new ShaderDefinitions(ShaderStage.Compute, 32, 32, 1);
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}
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else
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{
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return Definitions;
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}
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}
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public ResourceReservations GetResourceReservations()
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{
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IoUsage ioUsage = _program.GetIoUsage();
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if (Definitions.GpPassthrough)
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{
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ioUsage = ioUsage.Combine(_vertexOutput);
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}
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return new ResourceReservations(GpuAccessor, IsTransformFeedbackEmulated, vertexAsCompute: true, _vertexOutput, ioUsage);
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}
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public void SetVertexOutputMapForGeometryAsCompute(TranslatorContext vertexContext)
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{
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_vertexOutput = vertexContext._program.GetIoUsage();
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}
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public ShaderProgram GenerateVertexPassthroughForCompute()
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{
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var attributeUsage = new AttributeUsage(GpuAccessor);
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var resourceManager = new ResourceManager(ShaderStage.Vertex, GpuAccessor);
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var reservations = GetResourceReservations();
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int vertexInfoCbBinding = reservations.VertexInfoConstantBufferBinding;
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if (Stage == ShaderStage.Vertex)
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{
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BufferDefinition vertexInfoBuffer = new(BufferLayout.Std140, 0, vertexInfoCbBinding, "vb_info", VertexInfoBuffer.GetStructureType());
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resourceManager.Properties.AddOrUpdateConstantBuffer(vertexInfoBuffer);
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}
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StructureType vertexInputStruct = new(new StructureField[]
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{
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new StructureField(AggregateType.Array | AggregateType.FP32, "data", 0)
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});
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int vertexDataSbBinding = reservations.VertexOutputStorageBufferBinding;
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BufferDefinition vertexOutputBuffer = new(BufferLayout.Std430, 1, vertexDataSbBinding, "vb_input", vertexInputStruct);
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resourceManager.Properties.AddOrUpdateStorageBuffer(vertexOutputBuffer);
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var context = new EmitterContext();
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Operand vertexIndex = Options.TargetApi == TargetApi.OpenGL
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? context.Load(StorageKind.Input, IoVariable.VertexId)
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: context.Load(StorageKind.Input, IoVariable.VertexIndex);
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if (Stage == ShaderStage.Vertex)
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{
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Operand vertexCount = context.Load(StorageKind.ConstantBuffer, vertexInfoCbBinding, Const((int)VertexInfoBufferField.VertexCounts), Const(0));
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// Base instance will be always zero when this shader is used, so which one we use here doesn't really matter.
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Operand instanceId = Options.TargetApi == TargetApi.OpenGL
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? context.Load(StorageKind.Input, IoVariable.InstanceId)
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: context.Load(StorageKind.Input, IoVariable.InstanceIndex);
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vertexIndex = context.IAdd(context.IMultiply(instanceId, vertexCount), vertexIndex);
|
|
}
|
|
|
|
Operand baseOffset = context.IMultiply(vertexIndex, Const(reservations.OutputSizePerInvocation));
|
|
|
|
foreach ((IoDefinition ioDefinition, int inputOffset) in reservations.Offsets)
|
|
{
|
|
if (ioDefinition.StorageKind != StorageKind.Output)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
Operand vertexOffset = inputOffset != 0 ? context.IAdd(baseOffset, Const(inputOffset)) : baseOffset;
|
|
Operand value = context.Load(StorageKind.StorageBuffer, vertexDataSbBinding, Const(0), vertexOffset);
|
|
|
|
if (ioDefinition.IoVariable == IoVariable.UserDefined)
|
|
{
|
|
context.Store(StorageKind.Output, ioDefinition.IoVariable, null, Const(ioDefinition.Location), Const(ioDefinition.Component), value);
|
|
attributeUsage.SetOutputUserAttribute(ioDefinition.Location);
|
|
}
|
|
else if (ResourceReservations.IsVectorOrArrayVariable(ioDefinition.IoVariable))
|
|
{
|
|
context.Store(StorageKind.Output, ioDefinition.IoVariable, null, Const(ioDefinition.Component), value);
|
|
}
|
|
else
|
|
{
|
|
context.Store(StorageKind.Output, ioDefinition.IoVariable, null, value);
|
|
}
|
|
}
|
|
|
|
var operations = context.GetOperations();
|
|
var cfg = ControlFlowGraph.Create(operations);
|
|
var function = new Function(cfg.Blocks, "main", false, 0, 0);
|
|
|
|
var transformFeedbackOutputs = GetTransformFeedbackOutputs(GpuAccessor, out ulong transformFeedbackVecMap);
|
|
|
|
var definitions = new ShaderDefinitions(ShaderStage.Vertex, transformFeedbackVecMap, transformFeedbackOutputs)
|
|
{
|
|
LastInVertexPipeline = true
|
|
};
|
|
|
|
return Generate(
|
|
new[] { function },
|
|
attributeUsage,
|
|
definitions,
|
|
definitions,
|
|
resourceManager,
|
|
FeatureFlags.None,
|
|
0);
|
|
}
|
|
|
|
public ShaderProgram GenerateGeometryPassthrough()
|
|
{
|
|
int outputAttributesMask = AttributeUsage.UsedOutputAttributes;
|
|
int layerOutputAttr = LayerOutputAttribute;
|
|
|
|
if (LayerOutputWritten)
|
|
{
|
|
outputAttributesMask |= 1 << ((layerOutputAttr - AttributeConsts.UserAttributeBase) / 16);
|
|
}
|
|
|
|
OutputTopology outputTopology;
|
|
int maxOutputVertices;
|
|
|
|
switch (Definitions.InputTopology)
|
|
{
|
|
case InputTopology.Points:
|
|
outputTopology = OutputTopology.PointList;
|
|
maxOutputVertices = 1;
|
|
break;
|
|
case InputTopology.Lines:
|
|
case InputTopology.LinesAdjacency:
|
|
outputTopology = OutputTopology.LineStrip;
|
|
maxOutputVertices = 2;
|
|
break;
|
|
default:
|
|
outputTopology = OutputTopology.TriangleStrip;
|
|
maxOutputVertices = 3;
|
|
break;
|
|
}
|
|
|
|
var attributeUsage = new AttributeUsage(GpuAccessor);
|
|
var resourceManager = new ResourceManager(ShaderStage.Geometry, GpuAccessor);
|
|
|
|
var context = new EmitterContext();
|
|
|
|
for (int v = 0; v < maxOutputVertices; v++)
|
|
{
|
|
int outAttrsMask = outputAttributesMask;
|
|
|
|
while (outAttrsMask != 0)
|
|
{
|
|
int attrIndex = BitOperations.TrailingZeroCount(outAttrsMask);
|
|
|
|
outAttrsMask &= ~(1 << attrIndex);
|
|
|
|
for (int c = 0; c < 4; c++)
|
|
{
|
|
int attr = AttributeConsts.UserAttributeBase + attrIndex * 16 + c * 4;
|
|
|
|
Operand value = context.Load(StorageKind.Input, IoVariable.UserDefined, Const(attrIndex), Const(v), Const(c));
|
|
|
|
if (attr == layerOutputAttr)
|
|
{
|
|
context.Store(StorageKind.Output, IoVariable.Layer, null, value);
|
|
}
|
|
else
|
|
{
|
|
context.Store(StorageKind.Output, IoVariable.UserDefined, null, Const(attrIndex), Const(c), value);
|
|
}
|
|
}
|
|
}
|
|
|
|
for (int c = 0; c < 4; c++)
|
|
{
|
|
Operand value = context.Load(StorageKind.Input, IoVariable.Position, Const(v), Const(c));
|
|
|
|
context.Store(StorageKind.Output, IoVariable.Position, null, Const(c), value);
|
|
}
|
|
|
|
context.EmitVertex();
|
|
}
|
|
|
|
context.EndPrimitive();
|
|
|
|
var operations = context.GetOperations();
|
|
var cfg = ControlFlowGraph.Create(operations);
|
|
var function = new Function(cfg.Blocks, "main", false, 0, 0);
|
|
|
|
var definitions = new ShaderDefinitions(
|
|
ShaderStage.Geometry,
|
|
GpuAccessor.QueryGraphicsState(),
|
|
false,
|
|
1,
|
|
outputTopology,
|
|
maxOutputVertices);
|
|
|
|
return Generate(
|
|
new[] { function },
|
|
attributeUsage,
|
|
definitions,
|
|
definitions,
|
|
resourceManager,
|
|
FeatureFlags.RtLayer,
|
|
0);
|
|
}
|
|
}
|
|
}
|