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Fix vote and shuffle shader instructions on AMD GPUs (#5540)

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* Move shuffle handling out of the backend to a transform pass

* Handle subgroup sizes higher than 32

* Stop using the subgroup size control extension

* Make GenerateShuffleFunction static

* Shader cache version bump
This commit is contained in:
gdkchan 2023-08-16 21:31:07 -03:00 • committed by GitHub
parent 64079c034c
commit 6ed613a6e6
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GPG key ID: 4AEE18F83AFDEB23
35 changed files with 445 additions and 265 deletions
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5
src/Ryujinx.Graphics.Shader/CodeGen/Glsl/Instructions/InstGenBallot.cs
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@ -13,14 +13,15 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl.Instructions
AggregateType dstType = GetSrcVarType(operation.Inst, 0);
string arg = GetSoureExpr(context, operation.GetSource(0), dstType);
char component = "xyzw"[operation.Index];
if (context.HostCapabilities.SupportsShaderBallot)
{
return $"unpackUint2x32(ballotARB({arg})).x";
return $"unpackUint2x32(ballotARB({arg})).{component}";
}
else
{
return $"subgroupBallot({arg}).x";
return $"subgroupBallot({arg}).{component}";
}
}
}