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Add support for bindless textures from shader input (vertex buffer) on Vulkan (#6577)

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* Add support for bindless textures from shader input (vertex buffer)

* Shader cache version bump

* Format whitespace

* Remove cache entries on pool removal, disable for OpenGL

* PR feedback
This commit is contained in:
gdkchan
2024-04-22 15:05:55 -03:00
committed by GitHub
parent 9b94662b4b
commit c6f8bfed90
39 changed files with 1091 additions and 311 deletions
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86
src/Ryujinx.Graphics.Shader/Translation/Optimizations/BindlessElimination.cs
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@ -1,6 +1,7 @@
using Ryujinx.Graphics.Shader.Instructions;
using Ryujinx.Graphics.Shader.IntermediateRepresentation;
using Ryujinx.Graphics.Shader.StructuredIr;
using System;
using System.Collections.Generic;
namespace Ryujinx.Graphics.Shader.Translation.Optimizations
@ -31,7 +32,8 @@ namespace Ryujinx.Graphics.Shader.Translation.Optimizations
continue;
}
if (!TryConvertBindless(block, resourceManager, gpuAccessor, texOp))
if (!TryConvertBindless(block, resourceManager, gpuAccessor, texOp) &&
!GenerateBindlessAccess(block, resourceManager, gpuAccessor, texOp, node))
{
// If we can't do bindless elimination, remove the texture operation.
// Set any destination variables to zero.
@ -46,6 +48,88 @@ namespace Ryujinx.Graphics.Shader.Translation.Optimizations
}
}
private static bool GenerateBindlessAccess(
BasicBlock block,
ResourceManager resourceManager,
IGpuAccessor gpuAccessor,
TextureOperation texOp,
LinkedListNode<INode> node)
{
if (!gpuAccessor.QueryHostSupportsSeparateSampler())
{
// We depend on combining samplers and textures in the shader being supported for this.
return false;
}
Operand nvHandle = texOp.GetSource(0);
if (nvHandle.AsgOp is not Operation handleOp ||
handleOp.Inst != Instruction.Load ||
handleOp.StorageKind != StorageKind.Input)
{
// Right now, we only allow bindless access when the handle comes from a shader input.
// This is an artificial limitation to prevent it from being used in cases where it
// would have a large performance impact of loading all textures in the pool.
// It might be removed in the future, if we can mitigate the performance impact.
return false;
}
Operand textureHandle = OperandHelper.Local();
Operand samplerHandle = OperandHelper.Local();
Operand textureIndex = OperandHelper.Local();
block.Operations.AddBefore(node, new Operation(Instruction.BitwiseAnd, textureHandle, nvHandle, OperandHelper.Const(0xfffff)));
block.Operations.AddBefore(node, new Operation(Instruction.ShiftRightU32, samplerHandle, nvHandle, OperandHelper.Const(20)));
int texturePoolLength = Math.Max(BindlessToArray.MinimumArrayLength, gpuAccessor.QueryTextureArrayLengthFromPool());
block.Operations.AddBefore(node, new Operation(Instruction.MinimumU32, textureIndex, textureHandle, OperandHelper.Const(texturePoolLength - 1)));
texOp.SetSource(0, textureIndex);
bool hasSampler = !texOp.Inst.IsImage();
int textureBinding = resourceManager.GetTextureOrImageBinding(
texOp.Inst,
texOp.Type,
texOp.Format,
texOp.Flags & ~TextureFlags.Bindless,
0,
TextureHandle.PackOffsets(0, 0, TextureHandleType.Direct),
texturePoolLength,
hasSampler);
if (hasSampler)
{
Operand samplerIndex = OperandHelper.Local();
int samplerPoolLength = Math.Max(BindlessToArray.MinimumArrayLength, gpuAccessor.QuerySamplerArrayLengthFromPool());
block.Operations.AddBefore(node, new Operation(Instruction.MinimumU32, samplerIndex, samplerHandle, OperandHelper.Const(samplerPoolLength - 1)));
texOp.InsertSource(1, samplerIndex);
int samplerBinding = resourceManager.GetTextureOrImageBinding(
texOp.Inst,
SamplerType.None,
texOp.Format,
TextureFlags.None,
0,
TextureHandle.PackOffsets(0, 0, TextureHandleType.Direct),
samplerPoolLength);
texOp.TurnIntoArray(textureBinding, samplerBinding);
}
else
{
texOp.TurnIntoArray(textureBinding);
}
return true;
}
private static bool TryConvertBindless(BasicBlock block, ResourceManager resourceManager, IGpuAccessor gpuAccessor, TextureOperation texOp)
{
if (texOp.Inst == Instruction.TextureSample || texOp.Inst.IsTextureQuery())