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Replace constant buffer access on shader with new Load instruction (#4646)

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gdkchan 2023-05-20 16:19:26 -03:00 • committed by GitHub
parent fb27042e01
commit 402f05b8ef
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42 changed files with 788 additions and 625 deletions
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39
src/Ryujinx.Graphics.Shader/Instructions/InstEmitMemory.cs
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@ -1,6 +1,7 @@
using Ryujinx.Graphics.Shader.Decoders;
using Ryujinx.Graphics.Shader.IntermediateRepresentation;
using Ryujinx.Graphics.Shader.Translation;
using System.Numerics;
using static Ryujinx.Graphics.Shader.Instructions.InstEmitHelper;
using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
@ -80,7 +81,6 @@ namespace Ryujinx.Graphics.Shader.Instructions
Operand addr = context.IAdd(srcA, Const(Imm16ToSInt(op.CbufOffset)));
Operand wordOffset = context.ShiftRightU32(addr, Const(2));
Operand bitOffset = GetBitOffset(context, addr);
for (int index = 0; index < count; index++)
{
@ -92,11 +92,11 @@ namespace Ryujinx.Graphics.Shader.Instructions
}
Operand offset = context.IAdd(wordOffset, Const(index));
Operand value = context.LoadConstant(slot, offset);
Operand value = EmitLoadConstant(context, slot, offset);
if (isSmallInt)
{
value = ExtractSmallInt(context, (LsSize)op.LsSize, bitOffset, value);
value = ExtractSmallInt(context, (LsSize)op.LsSize, GetBitOffset(context, addr), value);
}
context.Copy(Register(dest), value);
@ -154,6 +154,39 @@ namespace Ryujinx.Graphics.Shader.Instructions
EmitStore(context, MemoryRegion.Shared, op.LsSize, GetSrcReg(context, op.SrcA), op.Dest, Imm24ToSInt(op.Imm24));
}
private static Operand EmitLoadConstant(EmitterContext context, Operand slot, Operand offset)
{
Operand vecIndex = context.ShiftRightU32(offset, Const(2));
Operand elemIndex = context.BitwiseAnd(offset, Const(3));
if (slot.Type == OperandType.Constant)
{
int binding = context.Config.ResourceManager.GetConstantBufferBinding(slot.Value);
return context.Load(StorageKind.ConstantBuffer, binding, Const(0), vecIndex, elemIndex);
}
else
{
Operand value = Const(0);
uint cbUseMask = context.Config.GpuAccessor.QueryConstantBufferUse();
while (cbUseMask != 0)
{
int cbIndex = BitOperations.TrailingZeroCount(cbUseMask);
int binding = context.Config.ResourceManager.GetConstantBufferBinding(cbIndex);
Operand isCurrent = context.ICompareEqual(slot, Const(cbIndex));
Operand currentValue = context.Load(StorageKind.ConstantBuffer, binding, Const(0), vecIndex, elemIndex);
value = context.ConditionalSelect(isCurrent, currentValue, value);
cbUseMask &= ~(1u << cbIndex);
}
return value;
}
}
private static Operand EmitAtomicOp(
EmitterContext context,
StorageKind storageKind,