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Declare and use gl_PerVertex block for VTG per-vertex built-ins (#5576)

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* Declare and use gl_PerVertex block for VTG per-vertex built-ins

* Shader cache version bump
This commit is contained in:
gdkchan 2023-08-16 18:16:25 -03:00 committed by GitHub
parent 0c445184c1
commit 17354d59d1
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 176 additions and 3 deletions
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2
src/Ryujinx.Graphics.Gpu/Shader/DiskCache/DiskCacheHostStorage.cs
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@ -22,7 +22,7 @@ namespace Ryujinx.Graphics.Gpu.Shader.DiskCache
private const ushort FileFormatVersionMajor = 1;
private const ushort FileFormatVersionMinor = 2;
private const uint FileFormatVersionPacked = ((uint)FileFormatVersionMajor << 16) | FileFormatVersionMinor;
private const uint CodeGenVersion = 5529;
private const uint CodeGenVersion = 5576;
private const string SharedTocFileName = "shared.toc";
private const string SharedDataFileName = "shared.data";

86
src/Ryujinx.Graphics.Shader/CodeGen/Spirv/Declarations.cs
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@ -348,12 +348,98 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
}
}
}
else if (IoMap.IsPerVertexBuiltIn(ioDefinition.IoVariable))
{
continue;
}
bool isOutput = ioDefinition.StorageKind.IsOutput();
bool isPerPatch = ioDefinition.StorageKind.IsPerPatch();
DeclareInputOrOutput(context, ioDefinition, isOutput, isPerPatch, iq, firstLocation);
}
DeclarePerVertexBlock(context);
}
private static void DeclarePerVertexBlock(CodeGenContext context)
{
if (context.Definitions.Stage.IsVtg())
{
if (context.Definitions.Stage != ShaderStage.Vertex)
{
var perVertexInputStructType = CreatePerVertexStructType(context);
int arraySize = context.Definitions.Stage == ShaderStage.Geometry ? context.InputVertices : 32;
var perVertexInputArrayType = context.TypeArray(perVertexInputStructType, context.Constant(context.TypeU32(), arraySize));
var perVertexInputPointerType = context.TypePointer(StorageClass.Input, perVertexInputArrayType);
var perVertexInputVariable = context.Variable(perVertexInputPointerType, StorageClass.Input);
context.Name(perVertexInputVariable, "gl_in");
context.AddGlobalVariable(perVertexInputVariable);
context.Inputs.Add(new IoDefinition(StorageKind.Input, IoVariable.Position), perVertexInputVariable);
}
var perVertexOutputStructType = CreatePerVertexStructType(context);
void DecorateTfo(IoVariable ioVariable, int fieldIndex)
{
if (context.Definitions.TryGetTransformFeedbackOutput(ioVariable, 0, 0, out var transformFeedbackOutput))
{
context.MemberDecorate(perVertexOutputStructType, fieldIndex, Decoration.XfbBuffer, (LiteralInteger)transformFeedbackOutput.Buffer);
context.MemberDecorate(perVertexOutputStructType, fieldIndex, Decoration.XfbStride, (LiteralInteger)transformFeedbackOutput.Stride);
context.MemberDecorate(perVertexOutputStructType, fieldIndex, Decoration.Offset, (LiteralInteger)transformFeedbackOutput.Offset);
}
}
DecorateTfo(IoVariable.Position, 0);
DecorateTfo(IoVariable.PointSize, 1);
DecorateTfo(IoVariable.ClipDistance, 2);
SpvInstruction perVertexOutputArrayType;
if (context.Definitions.Stage == ShaderStage.TessellationControl)
{
int arraySize = context.Definitions.ThreadsPerInputPrimitive;
perVertexOutputArrayType = context.TypeArray(perVertexOutputStructType, context.Constant(context.TypeU32(), arraySize));
}
else
{
perVertexOutputArrayType = perVertexOutputStructType;
}
var perVertexOutputPointerType = context.TypePointer(StorageClass.Output, perVertexOutputArrayType);
var perVertexOutputVariable = context.Variable(perVertexOutputPointerType, StorageClass.Output);
context.AddGlobalVariable(perVertexOutputVariable);
context.Outputs.Add(new IoDefinition(StorageKind.Output, IoVariable.Position), perVertexOutputVariable);
}
}
private static SpvInstruction CreatePerVertexStructType(CodeGenContext context)
{
var vec4FloatType = context.TypeVector(context.TypeFP32(), 4);
var floatType = context.TypeFP32();
var array8FloatType = context.TypeArray(context.TypeFP32(), context.Constant(context.TypeU32(), 8));
var array1FloatType = context.TypeArray(context.TypeFP32(), context.Constant(context.TypeU32(), 1));
var perVertexStructType = context.TypeStruct(true, vec4FloatType, floatType, array8FloatType, array1FloatType);
context.Name(perVertexStructType, "gl_PerVertex");
context.MemberName(perVertexStructType, 0, "gl_Position");
context.MemberName(perVertexStructType, 1, "gl_PointSize");
context.MemberName(perVertexStructType, 2, "gl_ClipDistance");
context.MemberName(perVertexStructType, 3, "gl_CullDistance");
context.Decorate(perVertexStructType, Decoration.Block);
context.MemberDecorate(perVertexStructType, 0, Decoration.BuiltIn, (LiteralInteger)BuiltIn.Position);
context.MemberDecorate(perVertexStructType, 1, Decoration.BuiltIn, (LiteralInteger)BuiltIn.PointSize);
context.MemberDecorate(perVertexStructType, 2, Decoration.BuiltIn, (LiteralInteger)BuiltIn.ClipDistance);
context.MemberDecorate(perVertexStructType, 3, Decoration.BuiltIn, (LiteralInteger)BuiltIn.CullDistance);
return perVertexStructType;
}
private static void DeclareInputOrOutput(

32
src/Ryujinx.Graphics.Shader/CodeGen/Spirv/Instructions.cs
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@ -1788,6 +1788,7 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
StorageClass storageClass;
SpvInstruction baseObj;
int srcIndex = 0;
IoVariable? perVertexBuiltIn = null;
switch (storageKind)
{
@ -1881,6 +1882,12 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
else
{
(_, varType) = IoMap.GetSpirvBuiltIn(ioVariable);
if (IoMap.IsPerVertexBuiltIn(ioVariable))
{
perVertexBuiltIn = ioVariable;
ioVariable = IoVariable.Position;
}
}
varType &= AggregateType.ElementTypeMask;
@ -1902,6 +1909,31 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
bool isStoreOrAtomic = operation.Inst == Instruction.Store || operation.Inst.IsAtomic();
int inputsCount = (isStoreOrAtomic ? operation.SourcesCount - 1 : operation.SourcesCount) - srcIndex;
if (perVertexBuiltIn.HasValue)
{
int fieldIndex = IoMap.GetPerVertexStructFieldIndex(perVertexBuiltIn.Value);
var indexes = new SpvInstruction[inputsCount + 1];
int index = 0;
if (IoMap.IsPerVertexArrayBuiltIn(storageKind, context.Definitions.Stage))
{
indexes[index++] = context.Get(AggregateType.S32, operation.GetSource(srcIndex++));
indexes[index++] = context.Constant(context.TypeS32(), fieldIndex);
}
else
{
indexes[index++] = context.Constant(context.TypeS32(), fieldIndex);
}
for (; index < inputsCount + 1; srcIndex++, index++)
{
indexes[index] = context.Get(AggregateType.S32, operation.GetSource(srcIndex));
}
return context.AccessChain(context.TypePointer(storageClass, context.GetType(varType)), baseObj, indexes);
}
if (operation.Inst == Instruction.AtomicCompareAndSwap)
{
inputsCount--;

39
src/Ryujinx.Graphics.Shader/CodeGen/Spirv/IoMap.cs
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@ -1,5 +1,6 @@
using Ryujinx.Graphics.Shader.IntermediateRepresentation;
using Ryujinx.Graphics.Shader.Translation;
using System;
using static Spv.Specification;
namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
@ -80,5 +81,43 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
return false;
}
public static bool IsPerVertexBuiltIn(IoVariable ioVariable)
{
switch (ioVariable)
{
case IoVariable.Position:
case IoVariable.PointSize:
case IoVariable.ClipDistance:
return true;
}
return false;
}
public static bool IsPerVertexArrayBuiltIn(StorageKind storageKind, ShaderStage stage)
{
if (storageKind == StorageKind.Output)
{
return stage == ShaderStage.TessellationControl;
}
else
{
return stage == ShaderStage.TessellationControl ||
stage == ShaderStage.TessellationEvaluation ||
stage == ShaderStage.Geometry;
}
}
public static int GetPerVertexStructFieldIndex(IoVariable ioVariable)
{
return ioVariable switch
{
IoVariable.Position => 0,
IoVariable.PointSize => 1,
IoVariable.ClipDistance => 2,
_ => throw new ArgumentException($"Invalid built-in variable {ioVariable}.")
};
}
}
}

13
src/Ryujinx.Graphics.Shader/ShaderStage.cs
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@ -23,5 +23,18 @@ namespace Ryujinx.Graphics.Shader
{
return stage == ShaderStage.Vertex || stage == ShaderStage.Fragment || stage == ShaderStage.Compute;
}
/// <summary>
/// Checks if the shader stage is vertex, tessellation or geometry.
/// </summary>
/// <param name="stage">Shader stage</param>
/// <returns>True if the shader stage is vertex, tessellation or geometry, false otherwise</returns>
public static bool IsVtg(this ShaderStage stage)
{
return stage == ShaderStage.Vertex ||
stage == ShaderStage.TessellationControl ||
stage == ShaderStage.TessellationEvaluation ||
stage == ShaderStage.Geometry;
}
}
}

7
src/Spv.Generator/Module.cs
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@ -28,6 +28,7 @@ namespace Spv.Generator
// In the declaration block.
private readonly Dictionary<TypeDeclarationKey, Instruction> _typeDeclarations;
private readonly List<Instruction> _typeDeclarationsList;
// In the declaration block.
private readonly List<Instruction> _globals;
// In the declaration block.
@ -54,6 +55,7 @@ namespace Spv.Generator
_debug = new List<Instruction>();
_annotations = new List<Instruction>();
_typeDeclarations = new Dictionary<TypeDeclarationKey, Instruction>();
_typeDeclarationsList = new List<Instruction>();
_constants = new Dictionary<ConstantKey, Instruction>();
_globals = new List<Instruction>();
_functionsDeclarations = new List<Instruction>();
@ -126,7 +128,8 @@ namespace Spv.Generator
instruction.SetId(GetNewId());
_typeDeclarations.Add(key, instruction);
_typeDeclarations[key] = instruction;
_typeDeclarationsList.Add(instruction);
}
public void AddEntryPoint(ExecutionModel executionModel, Instruction function, string name, params Instruction[] interfaces)
@ -330,7 +333,7 @@ namespace Spv.Generator
// Ensure that everything is in the right order in the declarations section.
List<Instruction> declarations = new();
declarations.AddRange(_typeDeclarations.Values);
declarations.AddRange(_typeDeclarationsList);
declarations.AddRange(_globals);
declarations.AddRange(_constants.Values);
declarations.Sort((Instruction x, Instruction y) => x.Id.CompareTo(y.Id));