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Initial support for shader attribute indexing (#2546)

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* Initial support for shader attribute indexing

* Support output indexing too, other improvements

* Fix order

* Address feedback
This commit is contained in:
gdkchan 2021-08-26 20:44:47 -03:00 • committed by GitHub
parent ec3e848d79
commit ee1038e542
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GPG key ID: 4AEE18F83AFDEB23
22 changed files with 298 additions and 86 deletions
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83
Ryujinx.Graphics.Shader/Instructions/InstEmitMemory.cs
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@ -15,6 +15,18 @@ namespace Ryujinx.Graphics.Shader.Instructions
Shared
}
public static void Al2p(EmitterContext context)
{
OpCodeAl2p op = (OpCodeAl2p)context.CurrOp;
if (op.Rd.IsRZ)
{
return;
}
context.Copy(Register(op.Rd), context.IAdd(Register(op.Ra), Const(op.Immediate)));
}
public static void Ald(EmitterContext context)
{
OpCodeAttribute op = (OpCodeAttribute)context.CurrOp;
@ -30,11 +42,31 @@ namespace Ryujinx.Graphics.Shader.Instructions
break;
}
Operand src = Attribute(op.AttributeOffset + index * 4);
if (op.Phys)
{
Operand userAttrOffset = context.ISubtract(GetSrcA(context), Const(AttributeConsts.UserAttributeBase));
Operand userAttrIndex = context.ShiftRightU32(userAttrOffset, Const(2));
context.FlagAttributeRead(src.Value);
context.Copy(Register(rd), context.LoadAttribute(Const(AttributeConsts.UserAttributeBase), userAttrIndex, primVertex));
context.Copy(Register(rd), context.LoadAttribute(src, primVertex));
context.Config.SetUsedFeature(FeatureFlags.IaIndexing);
}
else if (op.Rc.IsRZ)
{
Operand src = Attribute(op.AttributeOffset + index * 4);
context.FlagAttributeRead(src.Value);
context.Copy(Register(rd), src);
}
else
{
Operand src = Const(op.AttributeOffset + index * 4);
context.FlagAttributeRead(src.Value);
context.Copy(Register(rd), context.LoadAttribute(src, Const(0), primVertex));
}
}
}
@ -51,11 +83,23 @@ namespace Ryujinx.Graphics.Shader.Instructions
Register rd = new Register(op.Rd.Index + index, RegisterType.Gpr);
Operand dest = Attribute(op.AttributeOffset + index * 4);
if (op.Phys)
{
Operand userAttrOffset = context.ISubtract(GetSrcA(context), Const(AttributeConsts.UserAttributeBase));
Operand userAttrIndex = context.ShiftRightU32(userAttrOffset, Const(2));
context.FlagAttributeWritten(dest.Value);
context.StoreAttribute(Const(AttributeConsts.UserAttributeBase), userAttrIndex, Register(rd));
context.Copy(dest, Register(rd));
context.Config.SetUsedFeature(FeatureFlags.OaIndexing);
}
else
{
Operand dest = Attribute(op.AttributeOffset + index * 4);
context.FlagAttributeWritten(dest.Value);
context.Copy(dest, Register(rd));
}
}
}
@ -136,16 +180,31 @@ namespace Ryujinx.Graphics.Shader.Instructions
context.FlagAttributeRead(op.AttributeOffset);
Operand res = Attribute(op.AttributeOffset);
Operand res;
if (op.AttributeOffset >= AttributeConsts.UserAttributeBase &&
op.AttributeOffset < AttributeConsts.UserAttributeEnd)
if (op.Idx)
{
int index = (op.AttributeOffset - AttributeConsts.UserAttributeBase) >> 4;
Operand userAttrOffset = context.ISubtract(GetSrcA(context), Const(AttributeConsts.UserAttributeBase));
Operand userAttrIndex = context.ShiftRightU32(userAttrOffset, Const(2));
if (context.Config.ImapTypes[index].GetFirstUsedType() == PixelImap.Perspective)
res = context.LoadAttribute(Const(AttributeConsts.UserAttributeBase), userAttrIndex, Const(0));
res = context.FPMultiply(res, Attribute(AttributeConsts.PositionW));
context.Config.SetUsedFeature(FeatureFlags.IaIndexing);
}
else
{
res = Attribute(op.AttributeOffset);
if (op.AttributeOffset >= AttributeConsts.UserAttributeBase &&
op.AttributeOffset < AttributeConsts.UserAttributeEnd)
{
res = context.FPMultiply(res, Attribute(AttributeConsts.PositionW));
int index = (op.AttributeOffset - AttributeConsts.UserAttributeBase) >> 4;
if (context.Config.ImapTypes[index].GetFirstUsedType() == PixelImap.Perspective)
{
res = context.FPMultiply(res, Attribute(AttributeConsts.PositionW));
}
}
}