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Bindless elimination for constant sampler handle (#3424)

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* Bindless elimination for constant sampler handle

* Shader cache version bump

* Update TextureHandle.ReadPackedId for new bindless elimination
This commit is contained in:
gdkchan 2022-07-02 15:03:35 -03:00 • committed by GitHub
parent 0c66d71fe8
commit 5afd521c5a
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5 changed files with 78 additions and 25 deletions
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62
Ryujinx.Graphics.Shader/Translation/Optimizations/BindlessElimination.cs
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@ -51,16 +51,32 @@ namespace Ryujinx.Graphics.Shader.Translation.Optimizations
Operand src0 = Utils.FindLastOperation(handleCombineOp.GetSource(0), block);
Operand src1 = Utils.FindLastOperation(handleCombineOp.GetSource(1), block);
// For cases where we have a constant, ensure that the constant is always
// the second operand.
// Since this is a commutative operation, both are fine,
// and having a "canonical" representation simplifies some checks below.
if (src0.Type == OperandType.Constant && src1.Type != OperandType.Constant)
{
Operand temp = src1;
src1 = src0;
src0 = temp;
}
TextureHandleType handleType = TextureHandleType.SeparateSamplerHandle;
// Try to match masked pattern:
// - samplerHandle = samplerHandle & 0xFFF00000;
// - textureHandle = textureHandle & 0xFFFFF;
// - combinedHandle = samplerHandle | textureHandle;
// where samplerHandle and textureHandle comes from a constant buffer, and shifted pattern:
// - samplerHandle = samplerId << 20;
// - combinedHandle = samplerHandle | textureHandle;
// where samplerId and textureHandle comes from a constant buffer.
// Try to match the following patterns:
// Masked pattern:
// - samplerHandle = samplerHandle & 0xFFF00000;
// - textureHandle = textureHandle & 0xFFFFF;
// - combinedHandle = samplerHandle | textureHandle;
// Where samplerHandle and textureHandle comes from a constant buffer.
// Shifted pattern:
// - samplerHandle = samplerId << 20;
// - combinedHandle = samplerHandle | textureHandle;
// Where samplerId and textureHandle comes from a constant buffer.
// Constant pattern:
// - combinedHandle = samplerHandleConstant | textureHandle;
// Where samplerHandleConstant is a constant value, and textureHandle comes from a constant buffer.
if (src0.AsgOp is Operation src0AsgOp)
{
if (src1.AsgOp is Operation src1AsgOp &&
@ -104,18 +120,34 @@ namespace Ryujinx.Graphics.Shader.Translation.Optimizations
handleType = TextureHandleType.SeparateSamplerId;
}
}
else if (src1.Type == OperandType.Constant && (src1.Value & 0xfffff) == 0)
{
handleType = TextureHandleType.SeparateConstantSamplerHandle;
}
if (src0.Type != OperandType.ConstantBuffer || src1.Type != OperandType.ConstantBuffer)
if (src0.Type != OperandType.ConstantBuffer)
{
continue;
}
SetHandle(
config,
texOp,
TextureHandle.PackOffsets(src0.GetCbufOffset(), src1.GetCbufOffset(), handleType),
TextureHandle.PackSlots(src0.GetCbufSlot(), src1.GetCbufSlot()),
rewriteSamplerType);
if (handleType == TextureHandleType.SeparateConstantSamplerHandle)
{
SetHandle(
config,
texOp,
TextureHandle.PackOffsets(src0.GetCbufOffset(), ((src1.Value >> 20) & 0xfff), handleType),
TextureHandle.PackSlots(src0.GetCbufSlot(), 0),
rewriteSamplerType);
}
else if (src1.Type == OperandType.ConstantBuffer)
{
SetHandle(
config,
texOp,
TextureHandle.PackOffsets(src0.GetCbufOffset(), src1.GetCbufOffset(), handleType),
TextureHandle.PackSlots(src0.GetCbufSlot(), src1.GetCbufSlot()),
rewriteSamplerType);
}
}
else if (texOp.Inst == Instruction.ImageLoad ||
texOp.Inst == Instruction.ImageStore ||