mirrors/ryujinx
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Fix shader integer from/to double conversion (#2831)

Browse source
This commit is contained in:
gdkchan 2021-11-14 21:37:07 -03:00 • committed by GitHub
parent 788aec511f
commit b9d83cc97e
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
7 changed files with 90 additions and 34 deletions
Download patch file Download diff file Expand all files Collapse all files

40
Ryujinx.Graphics.Shader/Instructions/InstEmitConversion.cs
View file

@ -179,27 +179,40 @@ namespace Ryujinx.Graphics.Shader.Instructions
return;
}
Instruction fpType = srcType.ToInstFPType();
bool isSignedInt = dstType == IDstFmt.S16 || dstType == IDstFmt.S32 || dstType == IDstFmt.S64;
bool isSmallInt = dstType == IDstFmt.U16 || dstType == IDstFmt.S16;
Operand srcB = context.FPAbsNeg(src, absolute, negate);
Operand srcB = context.FPAbsNeg(src, absolute, negate, fpType);
srcB = roundingMode switch
{
RoundMode2.Round => context.FPRound(srcB),
RoundMode2.Floor => context.FPFloor(srcB),
RoundMode2.Ceil => context.FPCeiling(srcB),
RoundMode2.Trunc => context.FPTruncate(srcB),
RoundMode2.Round => context.FPRound(srcB, fpType),
RoundMode2.Floor => context.FPFloor(srcB, fpType),
RoundMode2.Ceil => context.FPCeiling(srcB, fpType),
RoundMode2.Trunc => context.FPTruncate(srcB, fpType),
_ => srcB
};
if (!isSignedInt)
{
// Negative float to uint cast is undefined, so we clamp the value before conversion.
srcB = context.FPMaximum(srcB, ConstF(0));
srcB = context.FPMaximum(srcB, ConstF(0), fpType);
}
srcB = isSignedInt ? context.FPConvertToS32(srcB) : context.FPConvertToU32(srcB);
if (srcType == DstFmt.F64)
{
srcB = isSignedInt
? context.FP64ConvertToS32(srcB)
: context.FP64ConvertToU32(srcB);
}
else
{
srcB = isSignedInt
? context.FP32ConvertToS32(srcB)
: context.FP32ConvertToU32(srcB);
}
if (isSmallInt)
{
@ -252,7 +265,18 @@ namespace Ryujinx.Graphics.Shader.Instructions
: context.BitfieldExtractU32(srcB, Const((int)byteSelection * 8), Const(size));
}
srcB = isSignedInt ? context.IConvertS32ToFP(srcB) : context.IConvertU32ToFP(srcB);
if (dstType == DstFmt.F64)
{
srcB = isSignedInt
? context.IConvertS32ToFP64(srcB)
: context.IConvertU32ToFP64(srcB);
}
else
{
srcB = isSignedInt
? context.IConvertS32ToFP32(srcB)
: context.IConvertU32ToFP32(srcB);
}
WriteFP(context, dstType, srcB, rd);