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using Ryujinx.Graphics.Shader.IntermediateRepresentation;
using Ryujinx.Graphics.Shader.Translation;
using System.Numerics;
using static Ryujinx.Graphics.Shader.StructuredIr.AstHelper;
namespace Ryujinx.Graphics.Shader.StructuredIr
{
class AstOperation : AstNode
{
public Instruction Inst { get; }
public StorageKind StorageKind { get; }
public bool ForcePrecise { get; }
public int Index { get; }
private readonly IAstNode[] _sources;
public int SourcesCount => _sources.Length;
public AstOperation(Instruction inst, StorageKind storageKind, bool forcePrecise, IAstNode[] sources, int sourcesCount)
{
Inst = inst;
StorageKind = storageKind;
ForcePrecise = forcePrecise;
_sources = sources;
for (int index = 0; index < sources.Length; index++)
{
if (index < sourcesCount)
{
AddUse(sources[index], this);
}
else
{
AddDef(sources[index], this);
}
}
Index = 0;
}
public AstOperation(
Instruction inst,
StorageKind storageKind,
bool forcePrecise,
int index,
IAstNode[] sources,
int sourcesCount) : this(inst, storageKind, forcePrecise, sources, sourcesCount)
{
Index = index;
}
public AstOperation(Instruction inst, params IAstNode[] sources) : this(inst, StorageKind.None, false, sources, sources.Length)
{
}
public IAstNode GetSource(int index)
{
return _sources[index];
}
public void SetSource(int index, IAstNode source)
{
RemoveUse(_sources[index], this);
AddUse(source, this);
_sources[index] = source;
}
public AggregateType GetVectorType(AggregateType scalarType)
{
int componentsCount = BitOperations.PopCount((uint)Index);
AggregateType type = scalarType;
switch (componentsCount)
{
case 2:
type |= AggregateType.Vector2;
break;
case 3:
type |= AggregateType.Vector3;
break;
case 4:
type |= AggregateType.Vector4;
break;
}
return type;
}
}
}
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