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Generate scaling helper functions on IR (#4714)

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* Generate scaling helper functions on IR

* Delete unused code

* Split RewriteTextureSample and move gather bias add to an earlier pass

* Remove using

* Shader cache version bump
This commit is contained in:
gdkchan 2023-05-25 17:46:58 -03:00 • committed by GitHub
parent 2c9715acf6
commit 8f0c89ffd6
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25 changed files with 560 additions and 584 deletions
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54
src/Ryujinx.Graphics.Shader/CodeGen/Spirv/Instructions.cs
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@ -4,7 +4,6 @@ using Ryujinx.Graphics.Shader.Translation;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Numerics;
using static Spv.Specification;
@ -114,6 +113,7 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
Add(Instruction.MemoryBarrier, GenerateMemoryBarrier);
Add(Instruction.Minimum, GenerateMinimum);
Add(Instruction.MinimumU32, GenerateMinimumU32);
Add(Instruction.Modulo, GenerateModulo);
Add(Instruction.Multiply, GenerateMultiply);
Add(Instruction.MultiplyHighS32, GenerateMultiplyHighS32);
Add(Instruction.MultiplyHighU32, GenerateMultiplyHighU32);
@ -744,8 +744,6 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
pCoords = Src(AggregateType.S32);
}
pCoords = ScalingHelpers.ApplyScaling(context, texOp, pCoords, intCoords: true, isBindless, isIndexed, isArray, pCount);
(var imageType, var imageVariable) = context.Images[new TextureMeta(texOp.CbufSlot, texOp.Handle, texOp.Format)];
var image = context.Load(imageType, imageVariable);
@ -1040,6 +1038,11 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
return GenerateBinaryU32(context, operation, context.Delegates.GlslUMin);
}
private static OperationResult GenerateModulo(CodeGenContext context, AstOperation operation)
{
return GenerateBinary(context, operation, context.Delegates.FMod, null);
}
private static OperationResult GenerateMultiply(CodeGenContext context, AstOperation operation)
{
return GenerateBinary(context, operation, context.Delegates.FMul, context.Delegates.IMul);
@ -1101,7 +1104,15 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
private static OperationResult GenerateReturn(CodeGenContext context, AstOperation operation)
{
context.Return();
if (operation.SourcesCount != 0)
{
context.ReturnValue(context.Get(context.CurrentFunction.ReturnType, operation.GetSource(0)));
}
else
{
context.Return();
}
return OperationResult.Invalid;
}
@ -1439,35 +1450,7 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
}
}
SpvInstruction ApplyBias(SpvInstruction vector, SpvInstruction image)
{
int gatherBiasPrecision = context.Config.GpuAccessor.QueryHostGatherBiasPrecision();
if (isGather && gatherBiasPrecision != 0)
{
// GPU requires texture gather to be slightly offset to match NVIDIA behaviour when point is exactly between two texels.
// Offset by the gather precision divided by 2 to correct for rounding.
var sizeType = pCount == 1 ? context.TypeS32() : context.TypeVector(context.TypeS32(), pCount);
var pVectorType = pCount == 1 ? context.TypeFP32() : context.TypeVector(context.TypeFP32(), pCount);
var bias = context.Constant(context.TypeFP32(), (float)(1 << (gatherBiasPrecision + 1)));
var biasVector = context.CompositeConstruct(pVectorType, Enumerable.Repeat(bias, pCount).ToArray());
var one = context.Constant(context.TypeFP32(), 1f);
var oneVector = context.CompositeConstruct(pVectorType, Enumerable.Repeat(one, pCount).ToArray());
var divisor = context.FMul(
pVectorType,
context.ConvertSToF(pVectorType, context.ImageQuerySize(sizeType, image)),
biasVector);
vector = context.FAdd(pVectorType, vector, context.FDiv(pVectorType, oneVector, divisor));
}
return vector;
}
SpvInstruction pCoords = AssemblePVector(pCount);
pCoords = ScalingHelpers.ApplyScaling(context, texOp, pCoords, intCoords, isBindless, isIndexed, isArray, pCount);
SpvInstruction AssembleDerivativesVector(int count)
{
@ -1638,8 +1621,6 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
image = context.Image(imageType, image);
}
pCoords = ApplyBias(pCoords, image);
var operands = operandsList.ToArray();
SpvInstruction result;
@ -1755,11 +1736,6 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
result = context.CompositeExtract(context.TypeS32(), result, (SpvLiteralInteger)texOp.Index);
}
if (texOp.Index < 2 || (type & SamplerType.Mask) == SamplerType.Texture3D)
{
result = ScalingHelpers.ApplyUnscaling(context, texOp.WithType(type), result, isBindless, isIndexed);
}
return new OperationResult(AggregateType.S32, result);
}
}