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Initial tessellation shader support (#2534)

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* Initial tessellation shader support

* Nits

* Re-arrange built-in table

* This is not needed anymore

* PR feedback
This commit is contained in:
gdkchan 2021-10-18 18:38:04 -03:00 • committed by GitHub
parent 7603dbe3c8
commit d512ce122c
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GPG key ID: 4AEE18F83AFDEB23
42 changed files with 775 additions and 148 deletions
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62
Ryujinx.Graphics.Shader/Instructions/InstEmitVideoMinMax.cs
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@ -120,6 +120,68 @@ namespace Ryujinx.Graphics.Shader.Instructions
context.Copy(GetDest(op.Dest), res);
}
public static void Vsetp(EmitterContext context)
{
InstVsetp op = context.GetOp<InstVsetp>();
Operand srcA = Extend(context, GetSrcReg(context, op.SrcA), op.ASelect);
Operand srcB;
if (op.BVideo)
{
srcB = Extend(context, GetSrcReg(context, op.SrcB), op.BSelect);
}
else
{
int imm = op.Imm16;
if ((op.BSelect & VectorSelect.S8B0) != 0)
{
imm = (imm << 16) >> 16;
}
srcB = Const(imm);
}
Operand p0Res;
bool signedA = (op.ASelect & VectorSelect.S8B0) != 0;
bool signedB = (op.BSelect & VectorSelect.S8B0) != 0;
if (signedA != signedB)
{
bool a32 = (op.ASelect & ~VectorSelect.S8B0) == VectorSelect.U32;
bool b32 = (op.BSelect & ~VectorSelect.S8B0) == VectorSelect.U32;
if (!a32 && !b32)
{
// Both values are extended small integer and can always fit in a S32, just do a signed comparison.
p0Res = GetIntComparison(context, op.VComp, srcA, srcB, isSigned: true, extended: false);
}
else
{
// TODO: Mismatching sign case.
p0Res = Const(0);
}
}
else
{
// Sign matches, just do a regular comparison.
p0Res = GetIntComparison(context, op.VComp, srcA, srcB, signedA, extended: false);
}
Operand p1Res = context.BitwiseNot(p0Res);
Operand pred = GetPredicate(context, op.SrcPred, op.SrcPredInv);
p0Res = InstEmitAluHelper.GetPredLogicalOp(context, op.BoolOp, p0Res, pred);
p1Res = InstEmitAluHelper.GetPredLogicalOp(context, op.BoolOp, p1Res, pred);
context.Copy(Register(op.DestPred, RegisterType.Predicate), p0Res);
context.Copy(Register(op.DestPredInv, RegisterType.Predicate), p1Res);
}
private static Operand Extend(EmitterContext context, Operand src, VectorSelect type)
{
return type switch