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using Ryujinx.Graphics.Shader.Decoders;
using Ryujinx.Graphics.Shader.IntermediateRepresentation;
using Ryujinx.Graphics.Shader.Translation;
using static Ryujinx.Graphics.Shader.Instructions.InstEmitAluHelper;
using static Ryujinx.Graphics.Shader.Instructions.InstEmitHelper;
using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
namespace Ryujinx.Graphics.Shader.Instructions
{
static partial class InstEmit
{
public static void Pset(EmitterContext context)
{
InstPset op = context.GetOp<InstPset>();
Operand srcA = context.BitwiseNot(Register(op.Src2Pred, RegisterType.Predicate), op.Src2PredInv);
Operand srcB = context.BitwiseNot(Register(op.Src1Pred, RegisterType.Predicate), op.Src1PredInv);
Operand srcC = context.BitwiseNot(Register(op.SrcPred, RegisterType.Predicate), op.SrcPredInv);
Operand res = GetPredLogicalOp(context, op.BoolOpAB, srcA, srcB);
res = GetPredLogicalOp(context, op.BoolOpC, res, srcC);
Operand dest = GetDest(op.Dest);
if (op.BVal)
{
context.Copy(dest, context.ConditionalSelect(res, ConstF(1), ConstF(0)));
}
else
{
context.Copy(dest, res);
}
}
public static void Psetp(EmitterContext context)
{
InstPsetp op = context.GetOp<InstPsetp>();
Operand srcA = context.BitwiseNot(Register(op.Src2Pred, RegisterType.Predicate), op.Src2PredInv);
Operand srcB = context.BitwiseNot(Register(op.Src1Pred, RegisterType.Predicate), op.Src1PredInv);
Operand p0Res = GetPredLogicalOp(context, op.BoolOpAB, srcA, srcB);
Operand p1Res = context.BitwiseNot(p0Res);
Operand srcPred = GetPredicate(context, op.SrcPred, op.SrcPredInv);
p0Res = GetPredLogicalOp(context, op.BoolOpC, p0Res, srcPred);
p1Res = GetPredLogicalOp(context, op.BoolOpC, p1Res, srcPred);
context.Copy(Register(op.DestPred, RegisterType.Predicate), p0Res);
context.Copy(Register(op.DestPredInv, RegisterType.Predicate), p1Res);
}
public static void P2rC(EmitterContext context)
{
InstP2rC op = context.GetOp<InstP2rC>();
Operand srcA = GetSrcReg(context, op.SrcA);
Operand dest = GetSrcReg(context, op.Dest);
Operand mask = GetSrcCbuf(context, op.CbufSlot, op.CbufOffset);
EmitP2r(context, srcA, dest, mask, op.ByteSel, op.Ccpr);
}
public static void P2rI(EmitterContext context)
{
InstP2rI op = context.GetOp<InstP2rI>();
Operand srcA = GetSrcReg(context, op.SrcA);
Operand dest = GetSrcReg(context, op.Dest);
Operand mask = GetSrcImm(context, op.Imm20);
EmitP2r(context, srcA, dest, mask, op.ByteSel, op.Ccpr);
}
public static void P2rR(EmitterContext context)
{
InstP2rR op = context.GetOp<InstP2rR>();
Operand srcA = GetSrcReg(context, op.SrcA);
Operand dest = GetSrcReg(context, op.Dest);
Operand mask = GetSrcReg(context, op.SrcB);
EmitP2r(context, srcA, dest, mask, op.ByteSel, op.Ccpr);
}
private static void EmitP2r(
EmitterContext context,
Operand srcA,
Operand dest,
Operand mask,
ByteSel byteSel,
bool ccpr)
{
int count = ccpr ? RegisterConsts.FlagsCount : RegisterConsts.PredsCount;
int shift = (int)byteSel * 8;
mask = context.BitwiseAnd(mask, Const(0xff));
Operand insert = Const(0);
for (int i = 0; i < count; i++)
{
Operand condition = ccpr
? Register(i, RegisterType.Flag)
: Register(i, RegisterType.Predicate);
Operand bit = context.ConditionalSelect(condition, Const(1 << (i + shift)), Const(0));
insert = context.BitwiseOr(insert, bit);
}
Operand maskShifted = context.ShiftLeft(mask, Const(shift));
Operand masked = context.BitwiseAnd(srcA, context.BitwiseNot(maskShifted));
Operand res = context.BitwiseOr(masked, context.BitwiseAnd(insert, maskShifted));
context.Copy(dest, res);
}
}
}
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