forked from Mirror/Ryujinx
425 lines
No EOL
14 KiB
C#
425 lines
No EOL
14 KiB
C#
using Ryujinx.Graphics.Shader.Decoders;
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using Ryujinx.Graphics.Shader.IntermediateRepresentation;
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using Ryujinx.Graphics.Shader.Translation;
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using System;
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using static Ryujinx.Graphics.Shader.Instructions.InstEmitAluHelper;
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using static Ryujinx.Graphics.Shader.Instructions.InstEmitHelper;
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using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
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namespace Ryujinx.Graphics.Shader.Instructions
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{
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static partial class InstEmit
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{
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public static void F2fR(EmitterContext context)
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{
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InstF2fR op = context.GetOp<InstF2fR>();
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var src = UnpackReg(context, op.SrcFmt, op.Sh, op.SrcB);
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EmitF2F(context, op.SrcFmt, op.DstFmt, op.RoundMode, src, op.Dest, op.AbsB, op.NegB, op.Sat);
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}
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public static void F2fI(EmitterContext context)
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{
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InstF2fI op = context.GetOp<InstF2fI>();
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var src = UnpackImm(context, op.SrcFmt, op.Sh, Imm20ToFloat(op.Imm20));
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EmitF2F(context, op.SrcFmt, op.DstFmt, op.RoundMode, src, op.Dest, op.AbsB, op.NegB, op.Sat);
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}
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public static void F2fC(EmitterContext context)
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{
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InstF2fC op = context.GetOp<InstF2fC>();
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var src = UnpackCbuf(context, op.SrcFmt, op.Sh, op.CbufSlot, op.CbufOffset);
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EmitF2F(context, op.SrcFmt, op.DstFmt, op.RoundMode, src, op.Dest, op.AbsB, op.NegB, op.Sat);
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}
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public static void F2iR(EmitterContext context)
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{
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InstF2iR op = context.GetOp<InstF2iR>();
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var src = UnpackReg(context, op.SrcFmt, op.Sh, op.SrcB);
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EmitF2I(context, op.SrcFmt, op.IDstFmt, op.RoundMode, src, op.Dest, op.AbsB, op.NegB);
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}
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public static void F2iI(EmitterContext context)
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{
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InstF2iI op = context.GetOp<InstF2iI>();
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var src = UnpackImm(context, op.SrcFmt, op.Sh, Imm20ToFloat(op.Imm20));
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EmitF2I(context, op.SrcFmt, op.IDstFmt, op.RoundMode, src, op.Dest, op.AbsB, op.NegB);
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}
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public static void F2iC(EmitterContext context)
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{
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InstF2iC op = context.GetOp<InstF2iC>();
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var src = UnpackCbuf(context, op.SrcFmt, op.Sh, op.CbufSlot, op.CbufOffset);
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EmitF2I(context, op.SrcFmt, op.IDstFmt, op.RoundMode, src, op.Dest, op.AbsB, op.NegB);
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}
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public static void I2fR(EmitterContext context)
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{
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InstI2fR op = context.GetOp<InstI2fR>();
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var src = GetSrcReg(context, op.SrcB);
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EmitI2F(context, op.ISrcFmt, op.DstFmt, src, op.ByteSel, op.Dest, op.AbsB, op.NegB);
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}
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public static void I2fI(EmitterContext context)
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{
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InstI2fI op = context.GetOp<InstI2fI>();
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var src = GetSrcImm(context, Imm20ToSInt(op.Imm20));
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EmitI2F(context, op.ISrcFmt, op.DstFmt, src, op.ByteSel, op.Dest, op.AbsB, op.NegB);
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}
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public static void I2fC(EmitterContext context)
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{
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InstI2fC op = context.GetOp<InstI2fC>();
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var src = GetSrcCbuf(context, op.CbufSlot, op.CbufOffset);
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EmitI2F(context, op.ISrcFmt, op.DstFmt, src, op.ByteSel, op.Dest, op.AbsB, op.NegB);
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}
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public static void I2iR(EmitterContext context)
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{
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InstI2iR op = context.GetOp<InstI2iR>();
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var src = GetSrcReg(context, op.SrcB);
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EmitI2I(context, op.ISrcFmt, op.IDstFmt, src, op.ByteSel, op.Dest, op.AbsB, op.NegB, op.Sat, op.WriteCC);
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}
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public static void I2iI(EmitterContext context)
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{
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InstI2iI op = context.GetOp<InstI2iI>();
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var src = GetSrcImm(context, Imm20ToSInt(op.Imm20));
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EmitI2I(context, op.ISrcFmt, op.IDstFmt, src, op.ByteSel, op.Dest, op.AbsB, op.NegB, op.Sat, op.WriteCC);
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}
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public static void I2iC(EmitterContext context)
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{
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InstI2iC op = context.GetOp<InstI2iC>();
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var src = GetSrcCbuf(context, op.CbufSlot, op.CbufOffset);
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EmitI2I(context, op.ISrcFmt, op.IDstFmt, src, op.ByteSel, op.Dest, op.AbsB, op.NegB, op.Sat, op.WriteCC);
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}
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private static void EmitF2F(
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EmitterContext context,
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DstFmt srcType,
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DstFmt dstType,
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IntegerRound roundingMode,
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Operand src,
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int rd,
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bool absolute,
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bool negate,
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bool saturate)
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{
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Operand srcB = context.FPAbsNeg(src, absolute, negate, srcType.ToInstFPType());
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if (srcType == dstType)
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{
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srcB = roundingMode switch
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{
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IntegerRound.Round => context.FPRound(srcB, srcType.ToInstFPType()),
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IntegerRound.Floor => context.FPFloor(srcB, srcType.ToInstFPType()),
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IntegerRound.Ceil => context.FPCeiling(srcB, srcType.ToInstFPType()),
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IntegerRound.Trunc => context.FPTruncate(srcB, srcType.ToInstFPType()),
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_ => srcB
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};
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}
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// We don't need to handle conversions between FP16 <-> FP32
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// since we do FP16 operations as FP32 directly.
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// FP16 <-> FP64 conversions are invalid.
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if (srcType == DstFmt.F32 && dstType == DstFmt.F64)
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{
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srcB = context.FP32ConvertToFP64(srcB);
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}
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else if (srcType == DstFmt.F64 && dstType == DstFmt.F32)
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{
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srcB = context.FP64ConvertToFP32(srcB);
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}
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srcB = context.FPSaturate(srcB, saturate, dstType.ToInstFPType());
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WriteFP(context, dstType, srcB, rd);
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// TODO: CC.
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}
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private static void EmitF2I(
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EmitterContext context,
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DstFmt srcType,
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IDstFmt dstType,
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RoundMode2 roundingMode,
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Operand src,
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int rd,
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bool absolute,
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bool negate)
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{
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if (dstType == IDstFmt.U64)
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{
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context.Config.GpuAccessor.Log("Unimplemented 64-bits F2I.");
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}
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Instruction fpType = srcType.ToInstFPType();
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bool isSignedInt = dstType == IDstFmt.S16 || dstType == IDstFmt.S32 || dstType == IDstFmt.S64;
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bool isSmallInt = dstType == IDstFmt.U16 || dstType == IDstFmt.S16;
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Operand srcB = context.FPAbsNeg(src, absolute, negate, fpType);
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srcB = roundingMode switch
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{
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RoundMode2.Round => context.FPRound(srcB, fpType),
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RoundMode2.Floor => context.FPFloor(srcB, fpType),
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RoundMode2.Ceil => context.FPCeiling(srcB, fpType),
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RoundMode2.Trunc => context.FPTruncate(srcB, fpType),
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_ => srcB
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};
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if (!isSignedInt)
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{
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// Negative float to uint cast is undefined, so we clamp the value before conversion.
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Operand c0 = srcType == DstFmt.F64 ? context.PackDouble2x32(0.0) : ConstF(0);
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srcB = context.FPMaximum(srcB, c0, fpType);
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}
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if (srcType == DstFmt.F64)
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{
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srcB = isSignedInt
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? context.FP64ConvertToS32(srcB)
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: context.FP64ConvertToU32(srcB);
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}
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else
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{
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srcB = isSignedInt
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? context.FP32ConvertToS32(srcB)
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: context.FP32ConvertToU32(srcB);
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}
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if (isSmallInt)
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{
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int min = (int)GetIntMin(dstType);
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int max = (int)GetIntMax(dstType);
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srcB = isSignedInt
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? context.IClampS32(srcB, Const(min), Const(max))
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: context.IClampU32(srcB, Const(min), Const(max));
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}
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Operand dest = GetDest(rd);
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context.Copy(dest, srcB);
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// TODO: CC.
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}
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private static void EmitI2F(
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EmitterContext context,
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ISrcFmt srcType,
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DstFmt dstType,
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Operand src,
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ByteSel byteSelection,
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int rd,
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bool absolute,
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bool negate)
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{
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bool isSignedInt =
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srcType == ISrcFmt.S8 ||
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srcType == ISrcFmt.S16 ||
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srcType == ISrcFmt.S32 ||
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srcType == ISrcFmt.S64;
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bool isSmallInt =
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srcType == ISrcFmt.U16 ||
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srcType == ISrcFmt.S16 ||
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srcType == ISrcFmt.U8 ||
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srcType == ISrcFmt.S8;
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// TODO: Handle S/U64.
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Operand srcB = context.IAbsNeg(src, absolute, negate);
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if (isSmallInt)
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{
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int size = srcType == ISrcFmt.U16 || srcType == ISrcFmt.S16 ? 16 : 8;
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srcB = isSignedInt
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? context.BitfieldExtractS32(srcB, Const((int)byteSelection * 8), Const(size))
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: context.BitfieldExtractU32(srcB, Const((int)byteSelection * 8), Const(size));
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}
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if (dstType == DstFmt.F64)
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{
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srcB = isSignedInt
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? context.IConvertS32ToFP64(srcB)
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: context.IConvertU32ToFP64(srcB);
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}
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else
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{
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srcB = isSignedInt
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? context.IConvertS32ToFP32(srcB)
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: context.IConvertU32ToFP32(srcB);
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}
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WriteFP(context, dstType, srcB, rd);
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// TODO: CC.
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}
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private static void EmitI2I(
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EmitterContext context,
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ISrcDstFmt srcType,
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ISrcDstFmt dstType,
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Operand src,
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ByteSel byteSelection,
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int rd,
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bool absolute,
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bool negate,
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bool saturate,
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bool writeCC)
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{
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if ((srcType & ~ISrcDstFmt.S8) > ISrcDstFmt.U32 || (dstType & ~ISrcDstFmt.S8) > ISrcDstFmt.U32)
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{
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context.Config.GpuAccessor.Log("Invalid I2I encoding.");
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return;
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}
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bool srcIsSignedInt =
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srcType == ISrcDstFmt.S8 ||
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srcType == ISrcDstFmt.S16 ||
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srcType == ISrcDstFmt.S32;
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bool dstIsSignedInt =
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dstType == ISrcDstFmt.S8 ||
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dstType == ISrcDstFmt.S16 ||
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dstType == ISrcDstFmt.S32;
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bool srcIsSmallInt =
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srcType == ISrcDstFmt.U16 ||
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srcType == ISrcDstFmt.S16 ||
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srcType == ISrcDstFmt.U8 ||
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srcType == ISrcDstFmt.S8;
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if (srcIsSmallInt)
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{
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int size = srcType == ISrcDstFmt.U16 || srcType == ISrcDstFmt.S16 ? 16 : 8;
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src = srcIsSignedInt
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? context.BitfieldExtractS32(src, Const((int)byteSelection * 8), Const(size))
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: context.BitfieldExtractU32(src, Const((int)byteSelection * 8), Const(size));
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}
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src = context.IAbsNeg(src, absolute, negate);
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if (saturate)
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{
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int min = (int)GetIntMin(dstType);
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int max = (int)GetIntMax(dstType);
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src = dstIsSignedInt
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? context.IClampS32(src, Const(min), Const(max))
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: context.IClampU32(src, Const(min), Const(max));
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}
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context.Copy(GetDest(rd), src);
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SetZnFlags(context, src, writeCC);
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}
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private static Operand UnpackReg(EmitterContext context, DstFmt floatType, bool h, int reg)
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{
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if (floatType == DstFmt.F32)
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{
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return GetSrcReg(context, reg);
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}
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else if (floatType == DstFmt.F16)
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{
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return GetHalfUnpacked(context, GetSrcReg(context, reg), HalfSwizzle.F16)[h ? 1 : 0];
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}
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else if (floatType == DstFmt.F64)
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{
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return GetSrcReg(context, reg, isFP64: true);
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}
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throw new ArgumentException($"Invalid floating point type \"{floatType}\".");
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}
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private static Operand UnpackCbuf(EmitterContext context, DstFmt floatType, bool h, int cbufSlot, int cbufOffset)
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{
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if (floatType == DstFmt.F32)
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{
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return GetSrcCbuf(context, cbufSlot, cbufOffset);
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}
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else if (floatType == DstFmt.F16)
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{
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return GetHalfUnpacked(context, GetSrcCbuf(context, cbufSlot, cbufOffset), HalfSwizzle.F16)[h ? 1 : 0];
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}
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else if (floatType == DstFmt.F64)
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{
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return GetSrcCbuf(context, cbufSlot, cbufOffset, isFP64: true);
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}
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throw new ArgumentException($"Invalid floating point type \"{floatType}\".");
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}
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private static Operand UnpackImm(EmitterContext context, DstFmt floatType, bool h, int imm)
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{
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if (floatType == DstFmt.F32)
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{
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return GetSrcImm(context, imm);
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}
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else if (floatType == DstFmt.F16)
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{
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return GetHalfUnpacked(context, GetSrcImm(context, imm), HalfSwizzle.F16)[h ? 1 : 0];
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}
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else if (floatType == DstFmt.F64)
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{
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return GetSrcImm(context, imm, isFP64: true);
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}
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throw new ArgumentException($"Invalid floating point type \"{floatType}\".");
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}
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private static void WriteFP(EmitterContext context, DstFmt type, Operand srcB, int rd)
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{
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Operand dest = GetDest(rd);
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if (type == DstFmt.F32)
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{
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context.Copy(dest, srcB);
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}
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else if (type == DstFmt.F16)
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{
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context.Copy(dest, context.PackHalf2x16(srcB, ConstF(0)));
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}
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else /* if (type == FPType.FP64) */
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{
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Operand dest2 = GetDest2(rd);
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context.Copy(dest, context.UnpackDouble2x32Low(srcB));
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context.Copy(dest2, context.UnpackDouble2x32High(srcB));
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}
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}
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private static Instruction ToInstFPType(this DstFmt type)
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{
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return type == DstFmt.F64 ? Instruction.FP64 : Instruction.FP32;
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}
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}
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} |