Mirrors/Ryujinx
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Implement BFI, BRK, FLO, FSWZADD, PBK, SHFL and TXD shader instructions, misc. fixes

Browse source
This commit is contained in:
gdk 2019-10-31 00:29:22 -03:00 • committed by Thog
parent d786d8d2b9
commit 278a4c317c
38 changed files with 972 additions and 166 deletions
Download patch file Download diff file Expand all files Collapse all files

82
Ryujinx.Graphics.Shader/Translation/Optimizations/Optimizer.cs
View file

@ -1,5 +1,6 @@
using Ryujinx.Graphics.Shader.IntermediateRepresentation;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
namespace Ryujinx.Graphics.Shader.Translation.Optimizations
@ -59,7 +60,8 @@ namespace Ryujinx.Graphics.Shader.Translation.Optimizations
modified = true;
}
else if (operation.Inst == Instruction.PackHalf2x16 && PropagatePack(operation))
else if ((operation.Inst == Instruction.PackHalf2x16 && PropagatePack(operation)) ||
(operation.Inst == Instruction.ShuffleXor && MatchDdxOrDdy(operation)))
{
if (operation.Dest.UseOps.Count == 0)
{
@ -135,6 +137,84 @@ namespace Ryujinx.Graphics.Shader.Translation.Optimizations
return modified;
}
public static bool MatchDdxOrDdy(Operation operation)
{
// It's assumed that "operation.Inst" is ShuffleXor,
// that should be checked before calling this method.
Debug.Assert(operation.Inst == Instruction.ShuffleXor);
bool modified = false;
Operand src2 = operation.GetSource(1);
Operand src3 = operation.GetSource(2);
if (src2.Type != OperandType.Constant || (src2.Value != 1 && src2.Value != 2))
{
return false;
}
if (src3.Type != OperandType.Constant || src3.Value != 0x1c03)
{
return false;
}
bool isDdy = src2.Value == 2;
bool isDdx = !isDdy;
// We can replace any use by a FSWZADD with DDX/DDY, when
// the following conditions are true:
// - The mask should be 0b10100101 for DDY, or 0b10011001 for DDX.
// - The first source operand must be the shuffle output.
// - The second source operand must be the shuffle first source operand.
INode[] uses = operation.Dest.UseOps.ToArray();
foreach (INode use in uses)
{
if (!(use is Operation test))
{
continue;
}
if (!(use is Operation useOp) || useOp.Inst != Instruction.SwizzleAdd)
{
continue;
}
Operand fswzaddSrc1 = useOp.GetSource(0);
Operand fswzaddSrc2 = useOp.GetSource(1);
Operand fswzaddSrc3 = useOp.GetSource(2);
if (fswzaddSrc1 != operation.Dest)
{
continue;
}
if (fswzaddSrc2 != operation.GetSource(0))
{
continue;
}
if (fswzaddSrc3.Type != OperandType.Constant)
{
continue;
}
int mask = fswzaddSrc3.Value;
if ((isDdx && mask != 0b10011001) ||
(isDdy && mask != 0b10100101))
{
continue;
}
useOp.TurnInto(isDdx ? Instruction.Ddx : Instruction.Ddy, fswzaddSrc2);
modified = true;
}
return modified;
}
private static void RemoveNode(BasicBlock block, LinkedListNode<INode> llNode)
{
// Remove a node from the nodes list, and also remove itself