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Implement shader storage buffer operations using new Load/Store instructions (#4993)

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* Implement storage buffer operations using new Load/Store instruction

* Extend GenerateMultiTargetStorageOp to also match access with constant offset, and log and comments

* Remove now unused code

* Catch more complex cases of global memory usage

* Shader cache version bump

* Extend global access elimination to work with more shared memory cases

* Change alignment requirement from 16 bytes to 8 bytes, handle cases where we need more than 16 storage buffers

* Tweak preferencing to catch more cases

* Enable CB0 elimination even when host storage buffer alignment is > 16 (for Intel)

* Fix storage buffer bindings

* Simplify some code

* Shader cache version bump

* Fix typo

* Extend global memory elimination to handle shared memory with multiple possible offsets and local memory
This commit is contained in:
gdkchan 2023-06-03 20:12:18 -03:00 • committed by GitHub
parent 81c9052847
commit 21c9ac6240
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GPG key ID: 4AEE18F83AFDEB23
42 changed files with 1468 additions and 1259 deletions
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76
src/Ryujinx.Graphics.Shader/CodeGen/Spirv/Declarations.cs
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@ -5,6 +5,7 @@ using Ryujinx.Graphics.Shader.Translation;
using Spv.Generator;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Numerics;
using static Spv.Specification;
@ -99,7 +100,7 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
}
DeclareConstantBuffers(context, context.Config.Properties.ConstantBuffers.Values);
DeclareStorageBuffers(context, context.Config.GetStorageBufferDescriptors());
DeclareStorageBuffers(context, context.Config.Properties.StorageBuffers.Values);
DeclareSamplers(context, context.Config.GetTextureDescriptors());
DeclareImages(context, context.Config.GetImageDescriptors());
DeclareInputsAndOutputs(context, info);
@ -127,6 +128,16 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
}
private static void DeclareConstantBuffers(CodeGenContext context, IEnumerable<BufferDefinition> buffers)
{
DeclareBuffers(context, buffers, isBuffer: false);
}
private static void DeclareStorageBuffers(CodeGenContext context, IEnumerable<BufferDefinition> buffers)
{
DeclareBuffers(context, buffers, isBuffer: true);
}
private static void DeclareBuffers(CodeGenContext context, IEnumerable<BufferDefinition> buffers, bool isBuffer)
{
HashSet<SpvInstruction> decoratedTypes = new HashSet<SpvInstruction>();
@ -155,6 +166,12 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
context.Decorate(structFieldTypes[fieldIndex], Decoration.ArrayStride, (LiteralInteger)fieldSize);
}
// Zero lengths are assumed to be a "runtime array" (which does not have a explicit length
// specified on the shader, and instead assumes the bound buffer length).
// It is only valid as the last struct element.
Debug.Assert(field.ArrayLength > 0 || fieldIndex == buffer.Type.Fields.Length - 1);
offset += fieldSize * field.ArrayLength;
}
else
@ -163,56 +180,37 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
}
}
var ubStructType = context.TypeStruct(false, structFieldTypes);
var structType = context.TypeStruct(false, structFieldTypes);
if (decoratedTypes.Add(ubStructType))
if (decoratedTypes.Add(structType))
{
context.Decorate(ubStructType, Decoration.Block);
context.Decorate(structType, isBuffer ? Decoration.BufferBlock : Decoration.Block);
for (int fieldIndex = 0; fieldIndex < structFieldOffsets.Length; fieldIndex++)
{
context.MemberDecorate(ubStructType, fieldIndex, Decoration.Offset, (LiteralInteger)structFieldOffsets[fieldIndex]);
context.MemberDecorate(structType, fieldIndex, Decoration.Offset, (LiteralInteger)structFieldOffsets[fieldIndex]);
}
}
var ubPointerType = context.TypePointer(StorageClass.Uniform, ubStructType);
var ubVariable = context.Variable(ubPointerType, StorageClass.Uniform);
var pointerType = context.TypePointer(StorageClass.Uniform, structType);
var variable = context.Variable(pointerType, StorageClass.Uniform);
context.Name(ubVariable, buffer.Name);
context.Decorate(ubVariable, Decoration.DescriptorSet, (LiteralInteger)buffer.Set);
context.Decorate(ubVariable, Decoration.Binding, (LiteralInteger)buffer.Binding);
context.AddGlobalVariable(ubVariable);
context.ConstantBuffers.Add(buffer.Binding, ubVariable);
context.Name(variable, buffer.Name);
context.Decorate(variable, Decoration.DescriptorSet, (LiteralInteger)buffer.Set);
context.Decorate(variable, Decoration.Binding, (LiteralInteger)buffer.Binding);
context.AddGlobalVariable(variable);
if (isBuffer)
{
context.StorageBuffers.Add(buffer.Binding, variable);
}
else
{
context.ConstantBuffers.Add(buffer.Binding, variable);
}
}
}
private static void DeclareStorageBuffers(CodeGenContext context, BufferDescriptor[] descriptors)
{
if (descriptors.Length == 0)
{
return;
}
int setIndex = context.Config.Options.TargetApi == TargetApi.Vulkan ? 1 : 0;
int count = descriptors.Max(x => x.Slot) + 1;
var sbArrayType = context.TypeRuntimeArray(context.TypeU32());
context.Decorate(sbArrayType, Decoration.ArrayStride, (LiteralInteger)4);
var sbStructType = context.TypeStruct(true, sbArrayType);
context.Decorate(sbStructType, Decoration.BufferBlock);
context.MemberDecorate(sbStructType, 0, Decoration.Offset, (LiteralInteger)0);
var sbStructArrayType = context.TypeArray(sbStructType, context.Constant(context.TypeU32(), count));
var sbPointerType = context.TypePointer(StorageClass.Uniform, sbStructArrayType);
var sbVariable = context.Variable(sbPointerType, StorageClass.Uniform);
context.Name(sbVariable, $"{GetStagePrefix(context.Config.Stage)}_s");
context.Decorate(sbVariable, Decoration.DescriptorSet, (LiteralInteger)setIndex);
context.Decorate(sbVariable, Decoration.Binding, (LiteralInteger)context.Config.FirstStorageBufferBinding);
context.AddGlobalVariable(sbVariable);
context.StorageBuffersArray = sbVariable;
}
private static void DeclareSamplers(CodeGenContext context, TextureDescriptor[] descriptors)
{
foreach (var descriptor in descriptors)