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Fix thread_index_in_simdgroup outside of compute

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Isaac Marovitz 2024-06-22 13:15:23 +01:00
commit 15e4d4e891
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1 changed files with 8 additions and 0 deletions
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src/Ryujinx.Graphics.Shader/CodeGen/Msl/Declarations.cs
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@ -80,6 +80,14 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Msl
context.AppendLine("FragmentOut out;"); context.AppendLine("FragmentOut out;");
break; break;
} }
// TODO: Only add if necessary
if (stage != ShaderStage.Compute)
{
// MSL does not give us access to [[thread_index_in_simdgroup]]
// outside compute. But we may still need to provide this value in frag/vert.
context.AppendLine("uint thread_index_in_simdgroup = simd_prefix_exclusive_sum(1);");
}
} }
foreach (AstOperand decl in function.Locals) foreach (AstOperand decl in function.Locals)