static void SplitSampledImageValueTypeIntrinsic(FrontEndTranslator translator, FrontEndContext context, ImageIntrinsicAttributeData intrinsicData, ShaderType returnType, List <IShaderIR> arguments)
{
var valueOps = new List <IShaderIR>();
var imageParam = translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, arguments[0]);
var samplerParam = translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, arguments[1]);
// Try and generate a sampled image type for this image. If we do create a new type that wasn't necessary that's fine because it'll be de-duped in the binary backend.
var sampledImageTypeStr = new TypeName {
Name = "GeneratedSampledImage_" + imageParam.mResultType.ToString()
};
var sampledImageType = translator.FindType(new TypeKey(sampledImageTypeStr));
if (sampledImageType == null)
{
sampledImageType = translator.CreateType(new TypeKey(sampledImageTypeStr), sampledImageTypeStr, OpType.SampledImage, null);
sampledImageType.mParameters.Add(imageParam.mResultType.GetDereferenceType());
}
// Combine the image and sampler together into a sampled image. This is a bit annoying, but a sampled image
// can't be stored into a variable so this has to be a temporary. Use this combined sampled image in place of the first two args to the intrinsics.
var sampledImageOp = translator.CreateOp(context.mCurrentBlock, OpInstructionType.OpSampledImage, sampledImageType, new List <IShaderIR>()
{
imageParam, samplerParam
});
valueOps.Add(sampledImageOp);
WriteArguments(translator, context, valueOps, intrinsicData, arguments, 2);
var op = translator.CreateOp(context.mCurrentBlock, intrinsicData.OpType, returnType, valueOps);
context.Push(op);
}
static void ProcessCompositeConstructIntrinsic(FrontEndTranslator translator, ShaderType returnType, List <IShaderIR> arguments, FrontEndContext context)
{
// Extract how many elements this composite is made up of
var compositeCountLiteral = returnType.mParameters[1] as ShaderConstantLiteral;
var compositeCount = (uint)compositeCountLiteral.mValue;
var valueOps = new List <IShaderIR>();
// If this is a splat constructor (only 1 arg) then splat the argument for each composite element
if (arguments.Count == 1)
{
var splatArgument = translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, arguments[0]);
for (uint i = 0; i < compositeCount; ++i)
{
valueOps.Add(splatArgument);
}
}
// Otherwise, just copy all args over (@JoshD: Needs validation)
else
{
foreach (var argument in arguments)
{
valueOps.Add(translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, argument));
}
}
var op = translator.CreateOp(context.mCurrentBlock, OpInstructionType.OpCompositeConstruct, returnType, valueOps);
context.Push(op);
}
public static ShaderOp GenerateInterfaceStructAndOp(FrontEndTranslator translator, List <ShaderInterfaceField> interfaceFields, TypeName structName, string instanceName, StorageClass storageClass)
{
var interfaceStruct = translator.FindType(new TypeKey(structName));
// Generate the interface struct if it doesn't already exist (uniform buffers already exist)
if (interfaceStruct == null)
{
interfaceStruct = translator.CreateType(new TypeKey(structName), structName, OpType.Struct, null);
foreach (var interfaceField in interfaceFields)
{
interfaceStruct.mFields.Add(interfaceField.ShaderField);
}
}
var opPointerType = translator.FindOrCreatePointerType(new TypeKey(structName), structName, storageClass);
var op = translator.CreateOp(OpInstructionType.OpVariable, opPointerType, null);
ShaderInterfaceField.InstanceAccessDelegate fieldInstanceGetFunction = (FrontEndTranslator translator, ShaderInterfaceField interfaceField, FrontEndContext context) =>
{
return(translator.GenerateAccessChain(op, interfaceField.ShaderField.mMeta.mName, context));
};
foreach (var interfaceField in interfaceFields)
{
interfaceField.GetInstance = fieldInstanceGetFunction;
}
op.DebugInfo.Name = instanceName;
return(op);
}
public static void ResolveVectorSwizzleGetter(FrontEndTranslator translator, FrontEndContext context, AttributeData attribute, ISymbol returnType, List <IShaderIR> arguments)
{
var swizzleElements = attribute.ConstructorArguments[0].Values;
var self = translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, arguments[0]);
var resultType = translator.mCurrentLibrary.FindType(new TypeKey(returnType));
// By default, assume the swizzle is 1 element (just a composite extract)
var swizzleArgs = new List <IShaderIR>()
{
self
};
var opType = OpInstructionType.OpCompositeExtract;
// If it's multiple elements, change this to a vector shuffle
if (swizzleElements.Length != 1)
{
swizzleArgs.Add(self);
opType = OpInstructionType.OpVectorShuffle;
}
// Add all elements to grab for the swizzle from the attribute
foreach (var element in swizzleElements)
{
swizzleArgs.Add(translator.CreateConstantLiteral((UInt32)element.Value));
}
var op = translator.CreateOp(context.mCurrentBlock, opType, resultType, swizzleArgs);
context.Push(op);
}
static void SampledImageValueTypeIntrinsic(FrontEndTranslator translator, FrontEndContext context, ImageIntrinsicAttributeData intrinsicData, ShaderType returnType, List <IShaderIR> arguments)
{
var valueOps = new List <IShaderIR>();
WriteArguments(translator, context, valueOps, intrinsicData, arguments, 0);
var op = translator.CreateOp(context.mCurrentBlock, intrinsicData.OpType, returnType, valueOps);
context.Push(op);
}
public static void AddDecorationBlock(FrontEndTranslator translator, ShaderType shaderType, ShaderBlock decorationsBlock)
{
var decorationBlockLiteral = translator.CreateConstantLiteral((int)Spv.Decoration.DecorationBlock);
translator.CreateOp(decorationsBlock, OpInstructionType.OpDecorate, null, new List <IShaderIR>()
{
shaderType, decorationBlockLiteral
});
}
public static void AddDecorationDescriptorSet(FrontEndTranslator translator, IShaderIR ir, int descriptorSetId, ShaderBlock decorationsBlock)
{
var decorationBindingLiteral = translator.CreateConstantLiteral((int)Spv.Decoration.DecorationDescriptorSet);
var descriptorSetIdLiteral = translator.CreateConstantLiteral(descriptorSetId);
translator.CreateOp(decorationsBlock, OpInstructionType.OpDecorate, null, new List <IShaderIR>()
{
ir, decorationBindingLiteral, descriptorSetIdLiteral
});
}
public static void AddDecorationBuiltIn(FrontEndTranslator translator, ShaderOp instanceOp, Spv.BuiltIn builtInType, ShaderBlock decorationsBlock)
{
var decorationBuiltInLiteral = translator.CreateConstantLiteral((int)Spv.Decoration.DecorationBuiltIn);
var builtInTypeLiteral = translator.CreateConstantLiteral((int)builtInType);
translator.CreateOp(decorationsBlock, OpInstructionType.OpDecorate, null, new List <IShaderIR>()
{
instanceOp, decorationBuiltInLiteral, builtInTypeLiteral
});
}
public static void AddExecutionMode(FrontEndTranslator translator, ShaderEntryPointInfo entryPointInfo, ShaderFunction entryPointFn, Spv.ExecutionMode executionMode)
{
var library = translator.mCurrentLibrary;
var executionModeLiteral = translator.CreateConstantLiteral(library.FindType(new TypeKey(typeof(int))), ((int)executionMode).ToString());
var executionModeOp = translator.CreateOp(OpInstructionType.OpExecutionMode, null, new List <IShaderIR> {
entryPointFn, executionModeLiteral
});
entryPointInfo.mExecutionModesBlock.mOps.Add(executionModeOp);
}
public static void AddDecorationLocation(FrontEndTranslator translator, ShaderOp instanceOp, int location, ShaderBlock decorationsBlock)
{
var decorationLocationLiteral = translator.CreateConstantLiteral((int)Spv.Decoration.DecorationLocation);
var locationLiteral = translator.CreateConstantLiteral(location);
translator.CreateOp(decorationsBlock, OpInstructionType.OpDecorate, null, new List <IShaderIR>()
{
instanceOp, decorationLocationLiteral, locationLiteral
});
}
void AddSimpleValueTypeUnaryOp(FrontEndTranslator translator, ShaderType resultType, string opToken, ShaderType operandType, OpInstructionType instructionType)
{
CreateUnaryOpIntrinsic(new UnaryOpKey(opToken, operandType), (IShaderIR operandIR, FrontEndContext context) =>
{
var operandValueOp = translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, operandIR);
return(translator.CreateOp(context.mCurrentBlock, instructionType, resultType, new List <IShaderIR> {
operandValueOp
}));
});
}
public static void AddDecorationMemberMatrixMajor(FrontEndTranslator translator, ShaderType shaderType, int fieldIndex, Spv.Decoration decoration, ShaderBlock decorationsBlock)
{
var decorationOffsetLiteral = translator.CreateConstantLiteral((int)decoration);
var fieldIndexLiteral = translator.CreateConstantLiteral(fieldIndex);
translator.CreateOp(decorationsBlock, OpInstructionType.OpMemberDecorate, null, new List <IShaderIR>()
{
shaderType, fieldIndexLiteral, decorationOffsetLiteral
});
}
void AddSimpleValueTypeBinaryOp(FrontEndTranslator translator, ShaderType resultType, ShaderType lhsType, string opToken, ShaderType rhsType, OpInstructionType instructionType)
{
CreateBinaryOpIntrinsic(new BinaryOpKey(lhsType, opToken, rhsType), (IShaderIR lhsExpression, IShaderIR rhsExpression, FrontEndContext context) =>
{
var lhsValueOp = translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, lhsExpression);
var rhsValueOp = translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, rhsExpression);
return(translator.CreateOp(context.mCurrentBlock, instructionType, resultType, new List <IShaderIR> {
lhsValueOp, rhsValueOp
}));
});
}
static void CombinedSampledImageValueTypeIntrinsic(FrontEndTranslator translator, FrontEndContext context, ImageIntrinsicAttributeData intrinsicData, ShaderType returnType, List <IShaderIR> arguments)
{
var valueOps = new List <IShaderIR>();
var sampledImageParam = translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, arguments[0]);
var sampledImageType = sampledImageParam.mResultType;
var imageType = sampledImageType.mParameters[0] as ShaderType;
// Pull the image out of the sampled image.
var imageOp = translator.CreateOp(context.mCurrentBlock, OpInstructionType.OpImage, imageType, new List <IShaderIR>()
{
sampledImageParam
});
valueOps.Add(imageOp);
WriteArguments(translator, context, valueOps, intrinsicData, arguments, 1);
var op = translator.CreateOp(context.mCurrentBlock, intrinsicData.OpType, returnType, valueOps);
context.Push(op);
}
/// <summary>
/// Does a simple intrinsic (one where all ops are value types).
/// </summary>
static void SimpleValueTypeIntrinsic(FrontEndTranslator translator, FrontEndContext context, OpInstructionType opType, ShaderType returnType, List <IShaderIR> arguments)
{
var valueOps = new List <IShaderIR>();
foreach (var argument in arguments)
{
valueOps.Add(translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, argument));
}
var op = translator.CreateOp(context.mCurrentBlock, opType, returnType, valueOps);
context.Push(op);
}
public static void GenerateInterfaceGlobalFields(FrontEndTranslator translator, List <ShaderInterfaceField> interfaceFields, string structName, string instanceName, StorageClass storageClass)
{
foreach (var interfaceField in interfaceFields)
{
var fieldPointerType = translator.FindOrCreatePointerType(interfaceField.ShaderField.mType, storageClass);
var fieldOp = translator.CreateOp(OpInstructionType.OpVariable, fieldPointerType, null);
ShaderInterfaceField.InstanceAccessDelegate fieldInstanceGetFunction = (FrontEndTranslator translator, ShaderInterfaceField interfaceField, FrontEndContext context) =>
{
return(fieldOp);
};
fieldOp.DebugInfo.Name = interfaceField.ShaderField.DebugInfo.Name;
interfaceField.GetInstance = fieldInstanceGetFunction;
}
}
static public void CreateArraySetType(FrontEndTranslator translator, INamedTypeSymbol typeSymbol, IMethodSymbol methodSymbol, AttributeData attribute)
{
// Do an access chain to get the element and then store the value inside the pointer
ShaderLibrary.InstrinsicDelegate callback = (FrontEndTranslator translator, List <IShaderIR> arguments, FrontEndContext context) =>
{
var selfOp = arguments[0];
var indexOp = translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, arguments[1]);
var valueOp = translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, arguments[2]);
var pointerType = valueOp.mResultType.FindPointerType(StorageClass.Function);
var accessChainOp = translator.CreateOp(context.mCurrentBlock, OpInstructionType.OpAccessChain, pointerType, new List <IShaderIR> {
selfOp, indexOp
});
translator.CreateStoreOp(context.mCurrentBlock, accessChainOp, valueOp);
};
translator.mCurrentLibrary.CreateIntrinsicFunction(new FunctionKey(methodSymbol), callback);
}
public static void GenerateHardwareBuiltIns(FrontEndTranslator translator, ShaderInterfaceSet interfaceSet, StorageClass storageClass, ShaderBlock declarationBlock, ShaderBlock decorationsBlock)
{
foreach (var builtInInterfaceField in interfaceSet)
{
var pointerType = translator.FindOrCreatePointerType(builtInInterfaceField.ShaderField.mType, storageClass);
var fieldInstanceOp = translator.CreateOp(OpInstructionType.OpVariable, pointerType, null);
declarationBlock.mLocalVariables.Add(fieldInstanceOp);
Decorations.AddDecorationBuiltIn(translator, fieldInstanceOp, builtInInterfaceField.BuiltInType, decorationsBlock);
ShaderInterfaceField.InstanceAccessDelegate fieldInstanceGetFunction = (FrontEndTranslator translator, ShaderInterfaceField interfaceField, FrontEndContext context) =>
{
return(fieldInstanceOp);
};
builtInInterfaceField.GetInstance = fieldInstanceGetFunction;
}
}
public static ShaderFunction GenerateFunction_ShaderTypeParam(FrontEndTranslator translator, ShaderType shaderType, string functionName, out ShaderOp thisOp)
{
var library = translator.mCurrentLibrary;
var voidType = library.FindType(new TypeKey(typeof(void)));
var thisType = shaderType.FindPointerType(StorageClass.Function);
var fnArgsTypes = new List <ShaderType>()
{
thisType
};
var function = translator.CreateFunctionAndType(shaderType, voidType, functionName, null, fnArgsTypes);
thisOp = translator.CreateOp(function.mParametersBlock, OpInstructionType.OpFunctionParameter, thisType, null);
thisOp.DebugInfo.Name = "self";
function.mBlocks.Add(new ShaderBlock());
return(function);
}
/// <summary>
/// Does a simple extension intrinsic (one where all ops are value types).
/// </summary>
static void ResolveSimpleExtensionIntrinsic(FrontEndTranslator translator, FrontEndContext context, string extensionName, int extOpType, ShaderType returnType, List <IShaderIR> arguments)
{
var extensionImportOp = translator.mCurrentLibrary.GetOrCreateExtensionLibraryImport(extensionName);
var extOpTypeOp = translator.CreateConstantLiteral(extOpType);
var valueOps = new List <IShaderIR>();
valueOps.Add(extensionImportOp);
valueOps.Add(extOpTypeOp);
foreach (var argument in arguments)
{
valueOps.Add(translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, argument));
}
var op = translator.CreateOp(context.mCurrentBlock, OpInstructionType.OpExtInst, returnType, valueOps);
context.Push(op);
}
public static void ResolveVectorDefaultConstructor(FrontEndTranslator translator, FrontEndContext context, ShaderType vectorType)
{
var componentType = vectorType.mParameters[0] as ShaderType;
var componentCount = (UInt32)(vectorType.mParameters[1] as ShaderConstantLiteral).mValue;
var zeroConstantLiteral = translator.CreateConstantLiteralZero(componentType);
var zeroConstant = translator.CreateConstantOp(componentType, zeroConstantLiteral);
var constructorArgs = new List <IShaderIR>();
for (var i = 0; i < componentCount; ++i)
{
constructorArgs.Add(zeroConstant);
}
var op = translator.CreateOp(context.mCurrentBlock, OpInstructionType.OpCompositeConstruct, vectorType, constructorArgs);
context.Push(op);
}
/// <summary>
/// Creates an intrinsic to retrieve an element from an array. This unfortunately has to use OpAccessChain because the other
/// instruction requires an integer literal, but OpAccessChain returns a pointer (which isn't exposed). This function will return the element as a value type.
/// </summary>
static public void CreateArrayGetType(FrontEndTranslator translator, INamedTypeSymbol typeSymbol, IMethodSymbol methodSymbol, AttributeData attribute)
{
var shaderReturnType = translator.FindType(new TypeKey(methodSymbol.ReturnType));
var pointerReturnType = shaderReturnType.FindPointerType(StorageClass.Function);
ShaderLibrary.InstrinsicDelegate callback = (FrontEndTranslator translator, List <IShaderIR> arguments, FrontEndContext context) =>
{
var selfOp = arguments[0];
var indexOp = translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, arguments[1]);
var accessChainOp = translator.CreateOp(context.mCurrentBlock, OpInstructionType.OpAccessChain, pointerReturnType, new List <IShaderIR> {
selfOp, indexOp
});
// Always convert the pointer to a value type
var returnOp = translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, accessChainOp);
context.Push(returnOp);
};
translator.mCurrentLibrary.CreateIntrinsicFunction(new FunctionKey(methodSymbol), callback);
}
public static void ResolveMatrixDefaultConstructor(FrontEndTranslator translator, FrontEndContext context, ShaderType vectorType)
{
var componentType = vectorType.mParameters[0] as ShaderType;
var componentCount = (UInt32)(vectorType.mParameters[1] as ShaderConstantLiteral).mValue;
// This direct call to the vector resolver is less than ideal, but works for now
VectorResolvers.ResolveVectorDefaultConstructor(translator, context, componentType);
var zeroConstant = context.Pop();
var constructorArgs = new List <IShaderIR>();
for (var i = 0; i < componentCount; ++i)
{
constructorArgs.Add(zeroConstant);
}
var op = translator.CreateOp(context.mCurrentBlock, OpInstructionType.OpCompositeConstruct, vectorType, constructorArgs);
context.Push(op);
}
void IncDecOp(FrontEndTranslator translator, ShaderType resultType, string opToken, ShaderType operandType, OpInstructionType instructionType)
{
CreateUnaryOpIntrinsic(new UnaryOpKey(opToken, operandType), (IShaderIR operandIR, FrontEndContext context) =>
{
var operandValueOp = translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, operandIR);
IShaderIR oneConstantOp = null;
if (resultType.mBaseType == OpType.Int)
{
oneConstantOp = translator.CreateConstantOp(operandType, 1);
}
else if (resultType.mBaseType == OpType.Float)
{
oneConstantOp = translator.CreateConstantOp(operandType, 1.0f);
}
return(translator.CreateOp(context.mCurrentBlock, instructionType, resultType, new List <IShaderIR> {
operandValueOp, oneConstantOp
}));
});
}
public static void ResolveVectorSwizzleSetter(FrontEndTranslator translator, FrontEndContext context, AttributeData attribute, ISymbol returnType, IShaderIR selfInstance, IShaderIR rhsIR)
{
var swizzleElements = attribute.ConstructorArguments[0].Values;
var selfValue = translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, selfInstance);
var selfValueType = selfValue.mResultType.GetDereferenceType();
var componentCount = (UInt32)(selfValueType.mParameters[1] as ShaderConstantLiteral).mValue;
var rhs = translator.GetOrGenerateValueTypeFromIR(context.mCurrentBlock, rhsIR);
// If we're setting just a single element, then do an access chain and to set that element
if (swizzleElements.Length == 1)
{
// Find what element we're setting
var constantLiteral = translator.CreateConstantLiteral((UInt32)swizzleElements[0].Value);
var memberIndexConstant = translator.CreateConstantOp(translator.FindType(typeof(uint)), constantLiteral);
// Lookup the result type
var resultType = translator.mCurrentLibrary.FindType(new TypeKey(returnType));
resultType = resultType.FindPointerType(selfValue.mResultType.mStorageClass);
// Build the access chain to the element
var memberVariableOp = translator.CreateOp(context.mCurrentBlock, OpInstructionType.OpAccessChain, resultType, new List <IShaderIR> {
selfInstance, memberIndexConstant
});
// Then set this back to the lhs side
translator.CreateStoreOp(context.mCurrentBlock, memberVariableOp, rhs);
}
// Otherwise construct a new vector and set it over
else
{
var swizzleArgs = new List <IShaderIR>()
{
selfValue, rhs
};
// Build up a set of what element indices were in the swizzle
var elementSet = new HashSet <UInt32>();
foreach (var element in swizzleElements)
{
elementSet.Add((UInt32)element.Value);
}
// Foreach element in the new vector, choose if we take it from the rhs or the lhs. If the element index is in the swizzle ops,
// then take the next element from rhs, otherwise take the same index from lhs.
var rhsElementIndex = 0u;
for (uint element = 0; element < componentCount; ++element)
{
if (elementSet.Contains(element))
{
swizzleArgs.Add(translator.CreateConstantLiteral(componentCount + rhsElementIndex));
++rhsElementIndex;
}
else
{
swizzleArgs.Add(translator.CreateConstantLiteral(element));
}
}
// To build the setter, first create the new vector from components in the lhs/rhs as appropriate.
var op = translator.CreateOp(context.mCurrentBlock, OpInstructionType.OpVectorShuffle, selfValueType, swizzleArgs);
// Then set this back to the lhs side
translator.CreateStoreOp(context.mCurrentBlock, selfInstance, op);
}
}
public ShaderOp CreateOp(OpInstructionType opType, ShaderType resultType, List <IShaderIR> arguments)
{
return(mFrontEnd.CreateOp(opType, resultType, arguments));
}