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

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

Browse source
This commit is contained in:
gdkchan 2023-05-20 16:19:26 -03:00 • committed by GitHub
parent fb27042e01
commit 402f05b8ef
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
42 changed files with 788 additions and 625 deletions
Download patch file Download diff file Expand all files Collapse all files

98
src/Ryujinx.Graphics.Shader/CodeGen/Glsl/Instructions/InstGenMemory.cs
View file

@ -215,29 +215,6 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl.Instructions
return GenerateLoadOrStore(context, operation, isStore: false);
}
public static string LoadConstant(CodeGenContext context, AstOperation operation)
{
IAstNode src1 = operation.GetSource(0);
IAstNode src2 = operation.GetSource(1);
string offsetExpr = GetSoureExpr(context, src2, GetSrcVarType(operation.Inst, 1));
offsetExpr = Enclose(offsetExpr, src2, Instruction.ShiftRightS32, isLhs: true);
var config = context.Config;
bool indexElement = !config.GpuAccessor.QueryHostHasVectorIndexingBug();
if (src1 is AstOperand operand && operand.Type == OperandType.Constant)
{
bool cbIndexable = config.UsedFeatures.HasFlag(Translation.FeatureFlags.CbIndexing);
return OperandManager.GetConstantBufferName(operand.Value, offsetExpr, config.Stage, cbIndexable, indexElement);
}
else
{
string slotExpr = GetSoureExpr(context, src1, GetSrcVarType(operation.Inst, 0));
return OperandManager.GetConstantBufferName(slotExpr, offsetExpr, config.Stage, indexElement);
}
}
public static string LoadLocal(CodeGenContext context, AstOperation operation)
{
return LoadLocalOrShared(context, operation, DefaultNames.LocalMemoryName);
@ -809,9 +786,29 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl.Instructions
string varName;
AggregateType varType;
int srcIndex = 0;
int inputsCount = isStore ? operation.SourcesCount - 1 : operation.SourcesCount;
switch (storageKind)
{
case StorageKind.ConstantBuffer:
if (!(operation.GetSource(srcIndex++) is AstOperand bindingIndex) || bindingIndex.Type != OperandType.Constant)
{
throw new InvalidOperationException($"First input of {operation.Inst} with {storageKind} storage must be a constant operand.");
}
int binding = bindingIndex.Value;
BufferDefinition buffer = context.Config.Properties.ConstantBuffers[binding];
if (!(operation.GetSource(srcIndex++) is AstOperand fieldIndex) || fieldIndex.Type != OperandType.Constant)
{
throw new InvalidOperationException($"Second input of {operation.Inst} with {storageKind} storage must be a constant operand.");
}
StructureField field = buffer.Type.Fields[fieldIndex.Value];
varName = $"{buffer.Name}.{field.Name}";
varType = field.Type;
break;
case StorageKind.Input:
case StorageKind.InputPerPatch:
case StorageKind.Output:
@ -864,40 +861,39 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl.Instructions
varName = $"gl_out[{expr}].{varName}";
}
}
int firstSrcIndex = srcIndex;
int inputsCount = isStore ? operation.SourcesCount - 1 : operation.SourcesCount;
for (; srcIndex < inputsCount; srcIndex++)
{
IAstNode src = operation.GetSource(srcIndex);
if ((varType & AggregateType.ElementCountMask) != 0 &&
srcIndex == inputsCount - 1 &&
src is AstOperand elementIndex &&
elementIndex.Type == OperandType.Constant)
{
varName += "." + "xyzw"[elementIndex.Value & 3];
}
else if (srcIndex == firstSrcIndex && context.Config.Stage == ShaderStage.TessellationControl && storageKind == StorageKind.Output)
{
// GLSL requires that for tessellation control shader outputs,
// that the index expression must be *exactly* "gl_InvocationID",
// otherwise the compilation fails.
// TODO: Get rid of this and use expression propagation to make sure we generate the correct code from IR.
varName += "[gl_InvocationID]";
}
else
{
varName += $"[{GetSoureExpr(context, src, AggregateType.S32)}]";
}
}
break;
default:
throw new InvalidOperationException($"Invalid storage kind {storageKind}.");
}
int firstSrcIndex = srcIndex;
for (; srcIndex < inputsCount; srcIndex++)
{
IAstNode src = operation.GetSource(srcIndex);
if ((varType & AggregateType.ElementCountMask) != 0 &&
srcIndex == inputsCount - 1 &&
src is AstOperand elementIndex &&
elementIndex.Type == OperandType.Constant)
{
varName += "." + "xyzw"[elementIndex.Value & 3];
}
else if (srcIndex == firstSrcIndex && context.Config.Stage == ShaderStage.TessellationControl && storageKind == StorageKind.Output)
{
// GLSL requires that for tessellation control shader outputs,
// that the index expression must be *exactly* "gl_InvocationID",
// otherwise the compilation fails.
// TODO: Get rid of this and use expression propagation to make sure we generate the correct code from IR.
varName += "[gl_InvocationID]";
}
else
{
varName += $"[{GetSoureExpr(context, src, AggregateType.S32)}]";
}
}
if (isStore)
{
varType &= AggregateType.ElementTypeMask;