| // |
| //Copyright (C) 2016 Google, Inc. |
| //Copyright (C) 2016 LunarG, Inc. |
| // |
| //All rights reserved. |
| // |
| //Redistribution and use in source and binary forms, with or without |
| //modification, are permitted provided that the following conditions |
| //are met: |
| // |
| // Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // |
| // Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // |
| // Neither the name of 3Dlabs Inc. Ltd. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| //THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| //"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| //LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| //FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| //COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| //INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| //BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| //LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| //CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| //LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| //ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| //POSSIBILITY OF SUCH DAMAGE. |
| // |
| #ifndef HLSL_PARSE_INCLUDED_ |
| #define HLSL_PARSE_INCLUDED_ |
| |
| #include "../glslang/MachineIndependent/parseVersions.h" |
| #include "../glslang/MachineIndependent/ParseHelper.h" |
| |
| namespace glslang { |
| |
| class HlslParseContext : public TParseContextBase { |
| public: |
| HlslParseContext(TSymbolTable&, TIntermediate&, bool parsingBuiltins, |
| int version, EProfile, int spv, int vulkan, EShLanguage, TInfoSink&, |
| bool forwardCompatible = false, EShMessages messages = EShMsgDefault); |
| virtual ~HlslParseContext(); |
| void setLimits(const TBuiltInResource&); |
| bool parseShaderStrings(TPpContext&, TInputScanner& input, bool versionWillBeError = false); |
| void getPreamble(std::string&); |
| |
| void C_DECL error(const TSourceLoc&, const char* szReason, const char* szToken, |
| const char* szExtraInfoFormat, ...); |
| void C_DECL warn(const TSourceLoc&, const char* szReason, const char* szToken, |
| const char* szExtraInfoFormat, ...); |
| void C_DECL ppError(const TSourceLoc&, const char* szReason, const char* szToken, |
| const char* szExtraInfoFormat, ...); |
| void C_DECL ppWarn(const TSourceLoc&, const char* szReason, const char* szToken, |
| const char* szExtraInfoFormat, ...); |
| |
| void reservedPpErrorCheck(const TSourceLoc&, const char* name, const char* op) { } |
| bool lineContinuationCheck(const TSourceLoc&, bool endOfComment) { return true; } |
| bool lineDirectiveShouldSetNextLine() const { return true; } |
| bool builtInName(const TString&); |
| |
| void handlePragma(const TSourceLoc&, const TVector<TString>&); |
| TIntermTyped* handleVariable(const TSourceLoc&, const TString* string); |
| TIntermTyped* handleBracketDereference(const TSourceLoc&, TIntermTyped* base, TIntermTyped* index); |
| void checkIndex(const TSourceLoc&, const TType&, int& index); |
| |
| void makeEditable(TSymbol*&); |
| TVariable* getEditableVariable(const char* name); |
| bool isIoResizeArray(const TType&) const; |
| void fixIoArraySize(const TSourceLoc&, TType&); |
| void handleIoResizeArrayAccess(const TSourceLoc&, TIntermTyped* base); |
| void checkIoArraysConsistency(const TSourceLoc&, bool tailOnly = false); |
| int getIoArrayImplicitSize() const; |
| void checkIoArrayConsistency(const TSourceLoc&, int requiredSize, const char* feature, TType&, const TString&); |
| |
| TIntermTyped* handleBinaryMath(const TSourceLoc&, const char* str, TOperator op, TIntermTyped* left, TIntermTyped* right); |
| TIntermTyped* handleUnaryMath(const TSourceLoc&, const char* str, TOperator op, TIntermTyped* childNode); |
| TIntermTyped* handleDotDereference(const TSourceLoc&, TIntermTyped* base, const TString& field); |
| TFunction* handleFunctionDeclarator(const TSourceLoc&, TFunction& function, bool prototype); |
| TIntermAggregate* handleFunctionDefinition(const TSourceLoc&, TFunction&); |
| void handleFunctionArgument(TFunction*, TIntermTyped*& arguments, TIntermTyped* newArg); |
| TIntermTyped* handleFunctionCall(const TSourceLoc&, TFunction*, TIntermNode*); |
| void decomposeIntrinsic(const TSourceLoc&, TIntermTyped*& node, TIntermNode* arguments); |
| TIntermTyped* handleLengthMethod(const TSourceLoc&, TFunction*, TIntermNode*); |
| void addInputArgumentConversions(const TFunction&, TIntermNode*&) const; |
| TIntermTyped* addOutputArgumentConversions(const TFunction&, TIntermAggregate&) const; |
| void builtInOpCheck(const TSourceLoc&, const TFunction&, TIntermOperator&); |
| TFunction* handleConstructorCall(const TSourceLoc&, const TType&); |
| |
| bool parseVectorFields(const TSourceLoc&, const TString&, int vecSize, TVectorFields&); |
| void assignError(const TSourceLoc&, const char* op, TString left, TString right); |
| void unaryOpError(const TSourceLoc&, const char* op, TString operand); |
| void binaryOpError(const TSourceLoc&, const char* op, TString left, TString right); |
| void variableCheck(TIntermTyped*& nodePtr); |
| void constantValueCheck(TIntermTyped* node, const char* token); |
| void integerCheck(const TIntermTyped* node, const char* token); |
| void globalCheck(const TSourceLoc&, const char* token); |
| bool constructorError(const TSourceLoc&, TIntermNode*, TFunction&, TOperator, TType&); |
| bool constructorTextureSamplerError(const TSourceLoc&, const TFunction&); |
| void arraySizeCheck(const TSourceLoc&, TIntermTyped* expr, TArraySize&); |
| void arraySizeRequiredCheck(const TSourceLoc&, const TArraySizes&); |
| void structArrayCheck(const TSourceLoc&, const TType& structure); |
| void arrayDimMerge(TType& type, const TArraySizes* sizes); |
| bool voidErrorCheck(const TSourceLoc&, const TString&, TBasicType); |
| void boolCheck(const TSourceLoc&, const TIntermTyped*); |
| void globalQualifierFix(const TSourceLoc&, TQualifier&); |
| bool structQualifierErrorCheck(const TSourceLoc&, const TPublicType& pType); |
| void mergeQualifiers(const TSourceLoc&, TQualifier& dst, const TQualifier& src, bool force); |
| int computeSamplerTypeIndex(TSampler&); |
| TSymbol* redeclareBuiltinVariable(const TSourceLoc&, const TString&, const TQualifier&, const TShaderQualifiers&, bool& newDeclaration); |
| void redeclareBuiltinBlock(const TSourceLoc&, TTypeList& typeList, const TString& blockName, const TString* instanceName, TArraySizes* arraySizes); |
| void paramCheckFix(const TSourceLoc&, const TStorageQualifier&, TType& type); |
| void paramCheckFix(const TSourceLoc&, const TQualifier&, TType& type); |
| void specializationCheck(const TSourceLoc&, const TType&, const char* op); |
| |
| void setLayoutQualifier(const TSourceLoc&, TPublicType&, TString&); |
| void setLayoutQualifier(const TSourceLoc&, TPublicType&, TString&, const TIntermTyped*); |
| void mergeObjectLayoutQualifiers(TQualifier& dest, const TQualifier& src, bool inheritOnly); |
| void checkNoShaderLayouts(const TSourceLoc&, const TShaderQualifiers&); |
| |
| const TFunction* findFunction(const TSourceLoc& loc, const TFunction& call, bool& builtIn); |
| TIntermNode* declareVariable(const TSourceLoc&, TString& identifier, const TType&, TArraySizes* typeArray = 0, TIntermTyped* initializer = 0); |
| TIntermTyped* addConstructor(const TSourceLoc&, TIntermNode*, const TType&, TOperator); |
| TIntermTyped* constructAggregate(TIntermNode*, const TType&, int, const TSourceLoc&); |
| TIntermTyped* constructBuiltIn(const TType&, TOperator, TIntermTyped*, const TSourceLoc&, bool subset); |
| void declareBlock(const TSourceLoc&, TTypeList& typeList, const TString* instanceName = 0, TArraySizes* arraySizes = 0); |
| void fixBlockLocations(const TSourceLoc&, TQualifier&, TTypeList&, bool memberWithLocation, bool memberWithoutLocation); |
| void fixBlockXfbOffsets(TQualifier&, TTypeList&); |
| void fixBlockUniformOffsets(TQualifier&, TTypeList&); |
| void addQualifierToExisting(const TSourceLoc&, TQualifier, const TString& identifier); |
| void addQualifierToExisting(const TSourceLoc&, TQualifier, TIdentifierList&); |
| void updateStandaloneQualifierDefaults(const TSourceLoc&, const TPublicType&); |
| void wrapupSwitchSubsequence(TIntermAggregate* statements, TIntermNode* branchNode); |
| TIntermNode* addSwitch(const TSourceLoc&, TIntermTyped* expression, TIntermAggregate* body); |
| |
| void updateImplicitArraySize(const TSourceLoc&, TIntermNode*, int index); |
| |
| void nestLooping() { ++loopNestingLevel; } |
| void unnestLooping() { --loopNestingLevel; } |
| void pushScope() { symbolTable.push(); } |
| void popScope() { symbolTable.pop(0); } |
| |
| protected: |
| void inheritGlobalDefaults(TQualifier& dst) const; |
| TVariable* makeInternalVariable(const char* name, const TType&) const; |
| TVariable* declareNonArray(const TSourceLoc&, TString& identifier, TType&, bool& newDeclaration); |
| void declareArray(const TSourceLoc&, TString& identifier, const TType&, TSymbol*&, bool& newDeclaration); |
| TIntermNode* executeInitializer(const TSourceLoc&, TIntermTyped* initializer, TVariable* variable); |
| TIntermTyped* convertInitializerList(const TSourceLoc&, const TType&, TIntermTyped* initializer); |
| TOperator mapTypeToConstructorOp(const TType&) const; |
| void outputMessage(const TSourceLoc&, const char* szReason, const char* szToken, |
| const char* szExtraInfoFormat, TPrefixType prefix, |
| va_list args); |
| |
| // Current state of parsing |
| struct TPragma contextPragma; |
| int loopNestingLevel; // 0 if outside all loops |
| int structNestingLevel; // 0 if outside blocks and structures |
| int controlFlowNestingLevel; // 0 if outside all flow control |
| TList<TIntermSequence*> switchSequenceStack; // case, node, case, case, node, ...; ensure only one node between cases; stack of them for nesting |
| TList<int> switchLevel; // the statementNestingLevel the current switch statement is at, which must match the level of its case statements |
| bool inEntrypoint; // if inside a function, true if the function is the entry point |
| bool postMainReturn; // if inside a function, true if the function is the entry point and this is after a return statement |
| const TType* currentFunctionType; // the return type of the function that's currently being parsed |
| bool functionReturnsValue; // true if a non-void function has a return |
| const TString* blockName; |
| TQualifier currentBlockQualifier; |
| TBuiltInResource resources; |
| TLimits& limits; |
| |
| HlslParseContext(HlslParseContext&); |
| HlslParseContext& operator=(HlslParseContext&); |
| |
| TMap<TString, TExtensionBehavior> extensionBehavior; // for each extension string, what its current behavior is set to |
| static const int maxSamplerIndex = EsdNumDims * (EbtNumTypes * (2 * 2 * 2)); // see computeSamplerTypeIndex() |
| bool afterEOF; |
| TQualifier globalBufferDefaults; |
| TQualifier globalUniformDefaults; |
| TQualifier globalInputDefaults; |
| TQualifier globalOutputDefaults; |
| TString currentCaller; // name of last function body entered (not valid when at global scope) |
| TIdSetType inductiveLoopIds; |
| TVector<TIntermTyped*> needsIndexLimitationChecking; |
| |
| // |
| // Geometry shader input arrays: |
| // - array sizing is based on input primitive and/or explicit size |
| // |
| // Tessellation control output arrays: |
| // - array sizing is based on output layout(vertices=...) and/or explicit size |
| // |
| // Both: |
| // - array sizing is retroactive |
| // - built-in block redeclarations interact with this |
| // |
| // Design: |
| // - use a per-context "resize-list", a list of symbols whose array sizes |
| // can be fixed |
| // |
| // - the resize-list starts empty at beginning of user-shader compilation, it does |
| // not have built-ins in it |
| // |
| // - on built-in array use: copyUp() symbol and add it to the resize-list |
| // |
| // - on user array declaration: add it to the resize-list |
| // |
| // - on block redeclaration: copyUp() symbol and add it to the resize-list |
| // * note, that appropriately gives an error if redeclaring a block that |
| // was already used and hence already copied-up |
| // |
| // - on seeing a layout declaration that sizes the array, fix everything in the |
| // resize-list, giving errors for mismatch |
| // |
| // - on seeing an array size declaration, give errors on mismatch between it and previous |
| // array-sizing declarations |
| // |
| TVector<TSymbol*> ioArraySymbolResizeList; |
| }; |
| |
| } // end namespace glslang |
| |
| #endif // HLSL_PARSE_INCLUDED_ |