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Implement VMAD shader instruction and improve InvocationInfo and ISBERD handling (#3251)

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* Implement VMAD shader instruction and improve InvocationInfo and ISBERD handling

* Shader cache version bump

* Fix typo
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gdkchan 2022-04-08 07:42:39 -03:00 • committed by GitHub
parent 3139a85a2b
commit e44a43c7e1
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9 changed files with 171 additions and 61 deletions
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Ryujinx.Graphics.Shader/Instructions/InstEmitAttribute.cs
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@ -168,10 +168,11 @@ namespace Ryujinx.Graphics.Shader.Instructions
{
InstIsberd op = context.GetOp<InstIsberd>();
// This instruction performs a load from ISBE memory,
// however it seems to be only used to get some vertex
// input data, so we instead propagate the offset so that
// it can be used on the attribute load.
// This instruction performs a load from ISBE (Internal Stage Buffer Entry) memory.
// Here, we just propagate the offset, as the result from this instruction is usually
// used with ALD to perform vertex load on geometry or tessellation shaders.
// The offset is calculated as (PrimitiveIndex * VerticesPerPrimitive) + VertexIndex.
// Since we hardcode PrimitiveIndex to zero, then the offset will be just VertexIndex.
context.Copy(GetDest(op.Dest), GetSrcReg(context, op.SrcA));
}