5da1f038d8
This is a partial implemention of structurebuffers supporting: * structured buffer types of: * StructuredBuffer * RWStructuredBuffer * ByteAddressBuffer * RWByteAddressBuffer * Atomic operations on RWByteAddressBuffer * Load/Load[234], Store/Store[234], GetDimensions methods (where allowed by type) * globallycoherent flag But NOT yet supporting: * AppendStructuredBuffer / ConsumeStructuredBuffer types * IncrementCounter/DecrementCounter methods Please note: the stride returned by GetDimensions is as calculated by glslang for std430, and may not match other environments in all cases.
376 lines
20 KiB
C++
Executable File
376 lines
20 KiB
C++
Executable File
//
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// Copyright (C) 2016 Google, Inc.
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// Copyright (C) 2016 LunarG, Inc.
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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//
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// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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#ifndef HLSL_PARSE_INCLUDED_
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#define HLSL_PARSE_INCLUDED_
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#include "../glslang/MachineIndependent/parseVersions.h"
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#include "../glslang/MachineIndependent/ParseHelper.h"
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namespace glslang {
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class TAttributeMap; // forward declare
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class HlslParseContext : public TParseContextBase {
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public:
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HlslParseContext(TSymbolTable&, TIntermediate&, bool parsingBuiltins,
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int version, EProfile, const SpvVersion& spvVersion, EShLanguage, TInfoSink&,
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const TString sourceEntryPointName,
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bool forwardCompatible = false, EShMessages messages = EShMsgDefault);
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virtual ~HlslParseContext();
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void initializeExtensionBehavior() override;
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void setLimits(const TBuiltInResource&) override;
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bool parseShaderStrings(TPpContext&, TInputScanner& input, bool versionWillBeError = false) override;
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virtual const char* getGlobalUniformBlockName() override { return "$Global"; }
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void reservedPpErrorCheck(const TSourceLoc&, const char* /*name*/, const char* /*op*/) override { }
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bool lineContinuationCheck(const TSourceLoc&, bool /*endOfComment*/) override { return true; }
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bool lineDirectiveShouldSetNextLine() const override { return true; }
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bool builtInName(const TString&);
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void handlePragma(const TSourceLoc&, const TVector<TString>&) override;
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TIntermTyped* handleVariable(const TSourceLoc&, TSymbol* symbol, const TString* string);
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TIntermTyped* handleBracketDereference(const TSourceLoc&, TIntermTyped* base, TIntermTyped* index);
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TIntermTyped* handleBracketOperator(const TSourceLoc&, TIntermTyped* base, TIntermTyped* index);
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void checkIndex(const TSourceLoc&, const TType&, int& index);
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TIntermTyped* handleBinaryMath(const TSourceLoc&, const char* str, TOperator op, TIntermTyped* left, TIntermTyped* right);
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TIntermTyped* handleUnaryMath(const TSourceLoc&, const char* str, TOperator op, TIntermTyped* childNode);
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TIntermTyped* handleDotDereference(const TSourceLoc&, TIntermTyped* base, const TString& field);
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void assignLocations(TVariable& variable);
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TFunction& handleFunctionDeclarator(const TSourceLoc&, TFunction& function, bool prototype);
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TIntermAggregate* handleFunctionDefinition(const TSourceLoc&, TFunction&, const TAttributeMap&, TIntermNode*& entryPointTree);
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TIntermNode* transformEntryPoint(const TSourceLoc&, TFunction&, const TAttributeMap&);
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void handleFunctionBody(const TSourceLoc&, TFunction&, TIntermNode* functionBody, TIntermNode*& node);
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void remapEntryPointIO(TFunction& function, TVariable*& returnValue, TVector<TVariable*>& inputs, TVector<TVariable*>& outputs);
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void remapNonEntryPointIO(TFunction& function);
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TIntermNode* handleReturnValue(const TSourceLoc&, TIntermTyped*);
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void handleFunctionArgument(TFunction*, TIntermTyped*& arguments, TIntermTyped* newArg);
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TIntermTyped* handleAssign(const TSourceLoc&, TOperator, TIntermTyped* left, TIntermTyped* right);
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TIntermTyped* handleAssignToMatrixSwizzle(const TSourceLoc&, TOperator, TIntermTyped* left, TIntermTyped* right);
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TIntermTyped* handleFunctionCall(const TSourceLoc&, TFunction*, TIntermTyped*);
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void decomposeIntrinsic(const TSourceLoc&, TIntermTyped*& node, TIntermNode* arguments);
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void decomposeSampleMethods(const TSourceLoc&, TIntermTyped*& node, TIntermNode* arguments);
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void decomposeStructBufferMethods(const TSourceLoc&, TIntermTyped*& node, TIntermNode* arguments);
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void decomposeGeometryMethods(const TSourceLoc&, TIntermTyped*& node, TIntermNode* arguments);
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TIntermTyped* handleLengthMethod(const TSourceLoc&, TFunction*, TIntermNode*);
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void addInputArgumentConversions(const TFunction&, TIntermTyped*&);
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TIntermTyped* addOutputArgumentConversions(const TFunction&, TIntermOperator&);
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void builtInOpCheck(const TSourceLoc&, const TFunction&, TIntermOperator&);
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TFunction* handleConstructorCall(const TSourceLoc&, const TType&);
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void handleSemantic(TSourceLoc, TQualifier&, const TString& semantic);
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void handlePackOffset(const TSourceLoc&, TQualifier&, const glslang::TString& location,
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const glslang::TString* component);
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void handleRegister(const TSourceLoc&, TQualifier&, const glslang::TString* profile, const glslang::TString& desc,
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int subComponent, const glslang::TString*);
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TIntermAggregate* handleSamplerTextureCombine(const TSourceLoc& loc, TIntermTyped* argTex, TIntermTyped* argSampler);
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bool parseMatrixSwizzleSelector(const TSourceLoc&, const TString&, int cols, int rows, TSwizzleSelectors<TMatrixSelector>&);
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int getMatrixComponentsColumn(int rows, const TSwizzleSelectors<TMatrixSelector>&);
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void assignError(const TSourceLoc&, const char* op, TString left, TString right);
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void unaryOpError(const TSourceLoc&, const char* op, TString operand);
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void binaryOpError(const TSourceLoc&, const char* op, TString left, TString right);
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void variableCheck(TIntermTyped*& nodePtr);
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void constantValueCheck(TIntermTyped* node, const char* token);
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void integerCheck(const TIntermTyped* node, const char* token);
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void globalCheck(const TSourceLoc&, const char* token);
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bool constructorError(const TSourceLoc&, TIntermNode*, TFunction&, TOperator, TType&);
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bool constructorTextureSamplerError(const TSourceLoc&, const TFunction&);
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void arraySizeCheck(const TSourceLoc&, TIntermTyped* expr, TArraySize&);
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void arraySizeRequiredCheck(const TSourceLoc&, const TArraySizes&);
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void structArrayCheck(const TSourceLoc&, const TType& structure);
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void arrayDimMerge(TType& type, const TArraySizes* sizes);
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bool voidErrorCheck(const TSourceLoc&, const TString&, TBasicType);
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void boolCheck(const TSourceLoc&, const TIntermTyped*);
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void globalQualifierFix(const TSourceLoc&, TQualifier&);
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bool structQualifierErrorCheck(const TSourceLoc&, const TPublicType& pType);
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void mergeQualifiers(TQualifier& dst, const TQualifier& src);
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int computeSamplerTypeIndex(TSampler&);
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TSymbol* redeclareBuiltinVariable(const TSourceLoc&, const TString&, const TQualifier&, const TShaderQualifiers&);
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void redeclareBuiltinBlock(const TSourceLoc&, TTypeList& typeList, const TString& blockName, const TString* instanceName, TArraySizes* arraySizes);
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void paramFix(TType& type);
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void specializationCheck(const TSourceLoc&, const TType&, const char* op);
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void setLayoutQualifier(const TSourceLoc&, TQualifier&, TString&);
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void setLayoutQualifier(const TSourceLoc&, TQualifier&, TString&, const TIntermTyped*);
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void mergeObjectLayoutQualifiers(TQualifier& dest, const TQualifier& src, bool inheritOnly);
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void checkNoShaderLayouts(const TSourceLoc&, const TShaderQualifiers&);
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const TFunction* findFunction(const TSourceLoc& loc, TFunction& call, bool& builtIn, TIntermTyped*& args);
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void declareTypedef(const TSourceLoc&, TString& identifier, const TType&);
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void declareStruct(const TSourceLoc&, TString& structName, TType&);
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TIntermNode* declareVariable(const TSourceLoc&, TString& identifier, TType&, TIntermTyped* initializer = 0);
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void lengthenList(const TSourceLoc&, TIntermSequence& list, int size);
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TIntermTyped* addConstructor(const TSourceLoc&, TIntermNode*, const TType&);
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TIntermTyped* constructAggregate(TIntermNode*, const TType&, int, const TSourceLoc&);
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TIntermTyped* constructBuiltIn(const TType&, TOperator, TIntermTyped*, const TSourceLoc&, bool subset);
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void declareBlock(const TSourceLoc&, TType&, const TString* instanceName = 0, TArraySizes* arraySizes = 0);
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void finalizeGlobalUniformBlockLayout(TVariable& block) override;
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void fixBlockLocations(const TSourceLoc&, TQualifier&, TTypeList&, bool memberWithLocation, bool memberWithoutLocation);
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void fixBlockXfbOffsets(TQualifier&, TTypeList&);
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void fixBlockUniformOffsets(const TQualifier&, TTypeList&);
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void addQualifierToExisting(const TSourceLoc&, TQualifier, const TString& identifier);
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void addQualifierToExisting(const TSourceLoc&, TQualifier, TIdentifierList&);
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void updateStandaloneQualifierDefaults(const TSourceLoc&, const TPublicType&);
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void wrapupSwitchSubsequence(TIntermAggregate* statements, TIntermNode* branchNode);
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TIntermNode* addSwitch(const TSourceLoc&, TIntermTyped* expression, TIntermAggregate* body);
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void updateImplicitArraySize(const TSourceLoc&, TIntermNode*, int index);
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void nestLooping() { ++loopNestingLevel; }
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void unnestLooping() { --loopNestingLevel; }
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void nestAnnotations() { ++annotationNestingLevel; }
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void unnestAnnotations() { --annotationNestingLevel; }
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int getAnnotationNestingLevel() { return annotationNestingLevel; }
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void pushScope() { symbolTable.push(); }
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void popScope() { symbolTable.pop(0); }
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void pushSwitchSequence(TIntermSequence* sequence) { switchSequenceStack.push_back(sequence); }
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void popSwitchSequence() { switchSequenceStack.pop_back(); }
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virtual void growGlobalUniformBlock(TSourceLoc&, TType&, TString& memberName, TTypeList* typeList = nullptr) override;
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// Apply L-value conversions. E.g, turning a write to a RWTexture into an ImageStore.
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TIntermTyped* handleLvalue(const TSourceLoc&, const char* op, TIntermTyped* node);
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bool lValueErrorCheck(const TSourceLoc&, const char* op, TIntermTyped*) override;
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TLayoutFormat getLayoutFromTxType(const TSourceLoc&, const TType&);
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bool handleOutputGeometry(const TSourceLoc&, const TLayoutGeometry& geometry);
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bool handleInputGeometry(const TSourceLoc&, const TLayoutGeometry& geometry);
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// Potentially rename shader entry point function
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void renameShaderFunction(TString*& name) const;
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// Reset data for incrementally built referencing of flattened composite structures
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void initFlattening() { flattenLevel.push_back(0); flattenOffset.push_back(0); }
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void finalizeFlattening() { flattenLevel.pop_back(); flattenOffset.pop_back(); }
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protected:
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struct TFlattenData {
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TFlattenData() : nextBinding(TQualifier::layoutBindingEnd) { }
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TFlattenData(int nb) : nextBinding(nb) { }
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TVector<TVariable*> members; // individual flattened variables
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TVector<int> offsets; // offset to next tree level
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int nextBinding; // next binding to use.
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};
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void fixConstInit(const TSourceLoc&, TString& identifier, TType& type, TIntermTyped*& initializer);
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void inheritGlobalDefaults(TQualifier& dst) const;
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TVariable* makeInternalVariable(const char* name, const TType&) const;
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TVariable* makeInternalVariable(const TString& name, const TType& type) const {
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return makeInternalVariable(name.c_str(), type);
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}
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TVariable* declareNonArray(const TSourceLoc&, TString& identifier, TType&, bool track);
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void declareArray(const TSourceLoc&, TString& identifier, const TType&, TSymbol*&, bool track);
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TIntermNode* executeInitializer(const TSourceLoc&, TIntermTyped* initializer, TVariable* variable);
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TIntermTyped* convertInitializerList(const TSourceLoc&, const TType&, TIntermTyped* initializer);
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bool isZeroConstructor(const TIntermNode*);
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TOperator mapAtomicOp(const TSourceLoc& loc, TOperator op, bool isImage);
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// Return true if this node requires L-value conversion (e.g, to an imageStore).
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bool shouldConvertLValue(const TIntermNode*) const;
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// Array and struct flattening
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TIntermTyped* flattenAccess(TIntermTyped* base, int member);
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bool shouldFlattenUniform(const TType&) const;
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bool wasFlattened(const TIntermTyped* node) const;
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bool wasFlattened(int id) const { return flattenMap.find(id) != flattenMap.end(); }
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int addFlattenedMember(const TSourceLoc& loc, const TVariable&, const TType&, TFlattenData&, const TString& name, bool track);
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bool isFinalFlattening(const TType& type) const { return !(type.isStruct() || type.isArray()); }
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// Structure splitting (splits interstage builtin types into its own struct)
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TIntermTyped* splitAccessStruct(const TSourceLoc& loc, TIntermTyped*& base, int& member);
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void splitAccessArray(const TSourceLoc& loc, TIntermTyped* base, TIntermTyped* index);
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TType& split(TType& type, TString name, const TType* outerStructType = nullptr);
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void split(TIntermTyped*);
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void split(const TVariable&);
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bool wasSplit(const TIntermTyped* node) const;
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bool wasSplit(int id) const { return splitIoVars.find(id) != splitIoVars.end(); }
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TVariable* getSplitIoVar(const TIntermTyped* node) const;
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TVariable* getSplitIoVar(const TVariable* var) const;
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TVariable* getSplitIoVar(int id) const;
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void addInterstageIoToLinkage();
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void addPatchConstantInvocation();
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void flatten(const TSourceLoc& loc, const TVariable& variable);
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int flatten(const TSourceLoc& loc, const TVariable& variable, const TType&, TFlattenData&, TString name);
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int flattenStruct(const TSourceLoc& loc, const TVariable& variable, const TType&, TFlattenData&, TString name);
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int flattenArray(const TSourceLoc& loc, const TVariable& variable, const TType&, TFlattenData&, TString name);
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bool hasUniform(const TQualifier& qualifier) const;
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void clearUniform(TQualifier& qualifier);
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bool isInputBuiltIn(const TQualifier& qualifier) const;
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bool hasInput(const TQualifier& qualifier) const;
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void correctOutput(TQualifier& qualifier);
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bool isOutputBuiltIn(const TQualifier& qualifier) const;
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bool hasOutput(const TQualifier& qualifier) const;
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void correctInput(TQualifier& qualifier);
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void correctUniform(TQualifier& qualifier);
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void clearUniformInputOutput(TQualifier& qualifier);
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// Test method names
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bool isSamplerMethod(const TString& name) const;
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bool isStructBufferMethod(const TString& name) const;
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// Pass through to base class after remembering builtin mappings.
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using TParseContextBase::trackLinkage;
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void trackLinkage(TSymbol& variable) override;
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void finish() override; // post-processing
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// Current state of parsing
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struct TPragma contextPragma;
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int loopNestingLevel; // 0 if outside all loops
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int annotationNestingLevel; // 0 if outside all annotations
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int structNestingLevel; // 0 if outside blocks and structures
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int controlFlowNestingLevel; // 0 if outside all flow control
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TList<TIntermSequence*> switchSequenceStack; // case, node, case, case, node, ...; ensure only one node between cases; stack of them for nesting
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bool postEntryPointReturn; // if inside a function, true if the function is the entry point and this is after a return statement
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const TType* currentFunctionType; // the return type of the function that's currently being parsed
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bool functionReturnsValue; // true if a non-void function has a return
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TBuiltInResource resources;
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TLimits& limits;
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HlslParseContext(HlslParseContext&);
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HlslParseContext& operator=(HlslParseContext&);
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static const int maxSamplerIndex = EsdNumDims * (EbtNumTypes * (2 * 2 * 2)); // see computeSamplerTypeIndex()
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TQualifier globalBufferDefaults;
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TQualifier globalUniformDefaults;
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TQualifier globalInputDefaults;
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TQualifier globalOutputDefaults;
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TString currentCaller; // name of last function body entered (not valid when at global scope)
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TIdSetType inductiveLoopIds;
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TVector<TIntermTyped*> needsIndexLimitationChecking;
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//
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// Geometry shader input arrays:
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// - array sizing is based on input primitive and/or explicit size
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//
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// Tessellation control output arrays:
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// - array sizing is based on output layout(vertices=...) and/or explicit size
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//
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// Both:
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// - array sizing is retroactive
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// - built-in block redeclarations interact with this
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//
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// Design:
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// - use a per-context "resize-list", a list of symbols whose array sizes
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// can be fixed
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//
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// - the resize-list starts empty at beginning of user-shader compilation, it does
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// not have built-ins in it
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//
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// - on built-in array use: copyUp() symbol and add it to the resize-list
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//
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// - on user array declaration: add it to the resize-list
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//
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// - on block redeclaration: copyUp() symbol and add it to the resize-list
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// * note, that appropriately gives an error if redeclaring a block that
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// was already used and hence already copied-up
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//
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// - on seeing a layout declaration that sizes the array, fix everything in the
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// resize-list, giving errors for mismatch
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//
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// - on seeing an array size declaration, give errors on mismatch between it and previous
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// array-sizing declarations
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//
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TVector<TSymbol*> ioArraySymbolResizeList;
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TMap<int, TFlattenData> flattenMap;
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TVector<int> flattenLevel; // nested postfix operator level for flattening
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TVector<int> flattenOffset; // cumulative offset for flattening
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// IO-type map. Maps a pure symbol-table form of a structure-member list into
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// each of the (up to) three kinds of IO, as each as different allowed decorations,
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// but HLSL allows mixing all in the same structure.
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struct tIoKinds {
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TTypeList* input;
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TTypeList* output;
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TTypeList* uniform;
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};
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TMap<const TTypeList*, tIoKinds> ioTypeMap;
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// Structure splitting data:
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TMap<int, TVariable*> splitIoVars; // variables with the builtin interstage IO removed, indexed by unique ID.
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// The builtin interstage IO map considers e.g, EvqPosition on input and output separately, so that we
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// can build the linkage correctly if position appears on both sides. Otherwise, multiple positions
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// are considered identical.
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struct tInterstageIoData {
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tInterstageIoData(TBuiltInVariable bi, TStorageQualifier q) :
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builtIn(bi), storage(q) { }
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tInterstageIoData(const TType& memberType, const TType& storageType) :
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builtIn(memberType.getQualifier().builtIn),
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storage(storageType.getQualifier().storage) { }
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TBuiltInVariable builtIn;
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TStorageQualifier storage;
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// ordering for maps
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bool operator<(const tInterstageIoData d) const {
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return (builtIn != d.builtIn) ? (builtIn < d.builtIn) : (storage < d.storage);
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}
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};
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TMap<tInterstageIoData, TVariable*> interstageBuiltInIo; // individual builtin interstage IO vars, indexed by builtin type.
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// We have to move array references to structs containing builtin interstage IO to the split variables.
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// This is only handled for one level. This stores the index, because we'll need it in the future, since
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// unlike normal array references, here the index happens before we discover what it applies to.
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TIntermTyped* builtInIoIndex;
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TIntermTyped* builtInIoBase;
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unsigned int nextInLocation;
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unsigned int nextOutLocation;
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TString sourceEntryPointName;
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TFunction* entryPointFunction;
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TIntermNode* entryPointFunctionBody;
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TString patchConstantFunctionName; // hull shader patch constant function name, from function level attribute.
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TMap<TBuiltInVariable, TSymbol*> builtInLinkageSymbols; // used for tessellation, finding declared builtins
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};
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} // end namespace glslang
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#endif // HLSL_PARSE_INCLUDED_
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