mirror of
https://github.com/KhronosGroup/glslang
synced 2024-11-15 06:10:05 +00:00
5d3023af03
This introduces parallel types for IO-type containing aggregates used as non-entry point function parameters or return types, or declared as variables. Further uses of the same original type will share the same sanitized deep structure. This is intended to be used with the wrap-entry-point branch.
341 lines
19 KiB
C++
Executable File
341 lines
19 KiB
C++
Executable File
//
|
|
// 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 TAttributeMap; // forward declare
|
|
|
|
class HlslParseContext : public TParseContextBase {
|
|
public:
|
|
HlslParseContext(TSymbolTable&, TIntermediate&, bool parsingBuiltins,
|
|
int version, EProfile, const SpvVersion& spvVersion, EShLanguage, TInfoSink&,
|
|
const TString sourceEntryPointName,
|
|
bool forwardCompatible = false, EShMessages messages = EShMsgDefault);
|
|
virtual ~HlslParseContext();
|
|
void initializeExtensionBehavior() override;
|
|
|
|
void setLimits(const TBuiltInResource&) override;
|
|
bool parseShaderStrings(TPpContext&, TInputScanner& input, bool versionWillBeError = false) override;
|
|
virtual const char* getGlobalUniformBlockName() override { return "$Global"; }
|
|
|
|
void reservedPpErrorCheck(const TSourceLoc&, const char* /*name*/, const char* /*op*/) override { }
|
|
bool lineContinuationCheck(const TSourceLoc&, bool /*endOfComment*/) override { return true; }
|
|
bool lineDirectiveShouldSetNextLine() const override { return true; }
|
|
bool builtInName(const TString&);
|
|
|
|
void handlePragma(const TSourceLoc&, const TVector<TString>&) override;
|
|
TIntermTyped* handleVariable(const TSourceLoc&, TSymbol* symbol, const TString* string);
|
|
TIntermTyped* handleBracketDereference(const TSourceLoc&, TIntermTyped* base, TIntermTyped* index);
|
|
TIntermTyped* handleBracketOperator(const TSourceLoc&, TIntermTyped* base, TIntermTyped* index);
|
|
void checkIndex(const TSourceLoc&, const TType&, int& index);
|
|
|
|
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);
|
|
void assignLocations(TVariable& variable);
|
|
TFunction& handleFunctionDeclarator(const TSourceLoc&, TFunction& function, bool prototype);
|
|
TIntermAggregate* handleFunctionDefinition(const TSourceLoc&, TFunction&, const TAttributeMap&, TIntermNode*& entryPointTree);
|
|
TIntermNode* transformEntryPoint(const TSourceLoc&, TFunction&, const TAttributeMap&);
|
|
void handleFunctionBody(const TSourceLoc&, TFunction&, TIntermNode* functionBody, TIntermNode*& node);
|
|
void remapEntryPointIO(const TFunction& function, TVariable*& returnValue, TVector<TVariable*>& inputs, TVector<TVariable*>& outputs);
|
|
void remapNonEntryPointIO(TFunction& function);
|
|
TIntermNode* handleReturnValue(const TSourceLoc&, TIntermTyped*);
|
|
void handleFunctionArgument(TFunction*, TIntermTyped*& arguments, TIntermTyped* newArg);
|
|
TIntermTyped* handleAssign(const TSourceLoc&, TOperator, TIntermTyped* left, TIntermTyped* right);
|
|
TIntermTyped* handleAssignToMatrixSwizzle(const TSourceLoc&, TOperator, TIntermTyped* left, TIntermTyped* right);
|
|
TIntermTyped* handleFunctionCall(const TSourceLoc&, TFunction*, TIntermTyped*);
|
|
void decomposeIntrinsic(const TSourceLoc&, TIntermTyped*& node, TIntermNode* arguments);
|
|
void decomposeSampleMethods(const TSourceLoc&, TIntermTyped*& node, TIntermNode* arguments);
|
|
void decomposeGeometryMethods(const TSourceLoc&, TIntermTyped*& node, TIntermNode* arguments);
|
|
TIntermTyped* handleLengthMethod(const TSourceLoc&, TFunction*, TIntermNode*);
|
|
void addInputArgumentConversions(const TFunction&, TIntermTyped*&);
|
|
TIntermTyped* addOutputArgumentConversions(const TFunction&, TIntermOperator&);
|
|
void builtInOpCheck(const TSourceLoc&, const TFunction&, TIntermOperator&);
|
|
TFunction* handleConstructorCall(const TSourceLoc&, const TType&);
|
|
void handleSemantic(TSourceLoc, TQualifier&, const TString& semantic);
|
|
void handlePackOffset(const TSourceLoc&, TQualifier&, const glslang::TString& location,
|
|
const glslang::TString* component);
|
|
void handleRegister(const TSourceLoc&, TQualifier&, const glslang::TString* profile, const glslang::TString& desc,
|
|
int subComponent, const glslang::TString*);
|
|
|
|
TIntermAggregate* handleSamplerTextureCombine(const TSourceLoc& loc, TIntermTyped* argTex, TIntermTyped* argSampler);
|
|
|
|
bool parseMatrixSwizzleSelector(const TSourceLoc&, const TString&, int cols, int rows, TSwizzleSelectors<TMatrixSelector>&);
|
|
int getMatrixComponentsColumn(int rows, const TSwizzleSelectors<TMatrixSelector>&);
|
|
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(TQualifier& dst, const TQualifier& src);
|
|
int computeSamplerTypeIndex(TSampler&);
|
|
TSymbol* redeclareBuiltinVariable(const TSourceLoc&, const TString&, const TQualifier&, const TShaderQualifiers&);
|
|
void redeclareBuiltinBlock(const TSourceLoc&, TTypeList& typeList, const TString& blockName, const TString* instanceName, TArraySizes* arraySizes);
|
|
void paramFix(TType& type);
|
|
void specializationCheck(const TSourceLoc&, const TType&, const char* op);
|
|
|
|
void setLayoutQualifier(const TSourceLoc&, TQualifier&, TString&);
|
|
void setLayoutQualifier(const TSourceLoc&, TQualifier&, TString&, const TIntermTyped*);
|
|
void mergeObjectLayoutQualifiers(TQualifier& dest, const TQualifier& src, bool inheritOnly);
|
|
void checkNoShaderLayouts(const TSourceLoc&, const TShaderQualifiers&);
|
|
|
|
const TFunction* findFunction(const TSourceLoc& loc, TFunction& call, bool& builtIn, TIntermTyped*& args);
|
|
void declareTypedef(const TSourceLoc&, TString& identifier, const TType&, TArraySizes* typeArray = 0);
|
|
TIntermNode* declareVariable(const TSourceLoc&, TString& identifier, TType&, TIntermTyped* initializer = 0);
|
|
void lengthenList(const TSourceLoc&, TIntermSequence& list, int size);
|
|
TIntermTyped* addConstructor(const TSourceLoc&, TIntermNode*, const TType&);
|
|
TIntermTyped* constructAggregate(TIntermNode*, const TType&, int, const TSourceLoc&);
|
|
TIntermTyped* constructBuiltIn(const TType&, TOperator, TIntermTyped*, const TSourceLoc&, bool subset);
|
|
void declareBlock(const TSourceLoc&, TType&, const TString* instanceName = 0, TArraySizes* arraySizes = 0);
|
|
void finalizeGlobalUniformBlockLayout(TVariable& block) override;
|
|
void fixBlockLocations(const TSourceLoc&, TQualifier&, TTypeList&, bool memberWithLocation, bool memberWithoutLocation);
|
|
void fixBlockXfbOffsets(TQualifier&, TTypeList&);
|
|
void fixBlockUniformOffsets(const 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 nestAnnotations() { ++annotationNestingLevel; }
|
|
void unnestAnnotations() { --annotationNestingLevel; }
|
|
int getAnnotationNestingLevel() { return annotationNestingLevel; }
|
|
void pushScope() { symbolTable.push(); }
|
|
void popScope() { symbolTable.pop(0); }
|
|
|
|
void pushSwitchSequence(TIntermSequence* sequence) { switchSequenceStack.push_back(sequence); }
|
|
void popSwitchSequence() { switchSequenceStack.pop_back(); }
|
|
|
|
// Apply L-value conversions. E.g, turning a write to a RWTexture into an ImageStore.
|
|
TIntermTyped* handleLvalue(const TSourceLoc&, const char* op, TIntermTyped* node);
|
|
bool lValueErrorCheck(const TSourceLoc&, const char* op, TIntermTyped*) override;
|
|
|
|
TLayoutFormat getLayoutFromTxType(const TSourceLoc&, const TType&);
|
|
|
|
bool handleOutputGeometry(const TSourceLoc&, const TLayoutGeometry& geometry);
|
|
bool handleInputGeometry(const TSourceLoc&, const TLayoutGeometry& geometry);
|
|
|
|
// Potentially rename shader entry point function
|
|
void renameShaderFunction(TString*& name) const;
|
|
|
|
// Reset data for incrementally built referencing of flattened composite structures
|
|
void initFlattening() { flattenLevel.push_back(0); flattenOffset.push_back(0); }
|
|
void finalizeFlattening() { flattenLevel.pop_back(); flattenOffset.pop_back(); }
|
|
|
|
protected:
|
|
struct TFlattenData {
|
|
TFlattenData() : nextBinding(TQualifier::layoutBindingEnd) { }
|
|
TFlattenData(int nb) : nextBinding(nb) { }
|
|
|
|
TVector<TVariable*> members; // individual flattened variables
|
|
TVector<int> offsets; // offset to next tree level
|
|
int nextBinding; // next binding to use.
|
|
};
|
|
|
|
void fixConstInit(const TSourceLoc&, TString& identifier, TType& type, TIntermTyped*& initializer);
|
|
void inheritGlobalDefaults(TQualifier& dst) const;
|
|
TVariable* makeInternalVariable(const char* name, const TType&) const;
|
|
TVariable* makeInternalVariable(const TString& name, const TType& type) const {
|
|
return makeInternalVariable(name.c_str(), type);
|
|
}
|
|
TVariable* declareNonArray(const TSourceLoc&, TString& identifier, TType&, bool track);
|
|
void declareArray(const TSourceLoc&, TString& identifier, const TType&, TSymbol*&, bool track);
|
|
TIntermNode* executeInitializer(const TSourceLoc&, TIntermTyped* initializer, TVariable* variable);
|
|
TIntermTyped* convertInitializerList(const TSourceLoc&, const TType&, TIntermTyped* initializer);
|
|
bool isZeroConstructor(const TIntermNode*);
|
|
TOperator mapAtomicOp(const TSourceLoc& loc, TOperator op, bool isImage);
|
|
|
|
// Return true if this node requires L-value conversion (e.g, to an imageStore).
|
|
bool shouldConvertLValue(const TIntermNode*) const;
|
|
|
|
// Array and struct flattening
|
|
TIntermTyped* flattenAccess(TIntermTyped* base, int member);
|
|
bool shouldFlattenUniform(const TType&) const;
|
|
bool wasFlattened(const TIntermTyped* node) const;
|
|
bool wasFlattened(int id) const { return flattenMap.find(id) != flattenMap.end(); }
|
|
int addFlattenedMember(const TSourceLoc& loc, const TVariable&, const TType&, TFlattenData&, const TString& name, bool track);
|
|
bool isFinalFlattening(const TType& type) const { return !(type.isStruct() || type.isArray()); }
|
|
|
|
// Structure splitting (splits interstage builtin types into its own struct)
|
|
TIntermTyped* splitAccessStruct(const TSourceLoc& loc, TIntermTyped*& base, int& member);
|
|
void splitAccessArray(const TSourceLoc& loc, TIntermTyped* base, TIntermTyped* index);
|
|
TType& split(TType& type, TString name, const TType* outerStructType = nullptr);
|
|
void split(TIntermTyped*);
|
|
void split(const TVariable&);
|
|
bool wasSplit(const TIntermTyped* node) const;
|
|
bool wasSplit(int id) const { return splitIoVars.find(id) != splitIoVars.end(); }
|
|
TVariable* getSplitIoVar(const TIntermTyped* node) const;
|
|
TVariable* getSplitIoVar(const TVariable* var) const;
|
|
TVariable* getSplitIoVar(int id) const;
|
|
void addInterstageIoToLinkage();
|
|
|
|
void flatten(const TSourceLoc& loc, const TVariable& variable);
|
|
int flatten(const TSourceLoc& loc, const TVariable& variable, const TType&, TFlattenData&, TString name);
|
|
int flattenStruct(const TSourceLoc& loc, const TVariable& variable, const TType&, TFlattenData&, TString name);
|
|
int flattenArray(const TSourceLoc& loc, const TVariable& variable, const TType&, TFlattenData&, TString name);
|
|
|
|
// Create a non-IO type from an IO type. If there is no IO data, this returns the input type unmodified.
|
|
// Otherwise, it modifies the type in place, and returns a pointer to it.
|
|
TType* makeNonIoType(TType*);
|
|
|
|
void finish() override; // post-processing
|
|
|
|
// Current state of parsing
|
|
struct TPragma contextPragma;
|
|
int loopNestingLevel; // 0 if outside all loops
|
|
int annotationNestingLevel; // 0 if outside all annotations
|
|
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
|
|
bool postEntryPointReturn; // 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
|
|
TBuiltInResource resources;
|
|
TLimits& limits;
|
|
|
|
HlslParseContext(HlslParseContext&);
|
|
HlslParseContext& operator=(HlslParseContext&);
|
|
|
|
static const int maxSamplerIndex = EsdNumDims * (EbtNumTypes * (2 * 2 * 2)); // see computeSamplerTypeIndex()
|
|
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;
|
|
|
|
TMap<int, TFlattenData> flattenMap;
|
|
TVector<int> flattenLevel; // nested postfix operator level for flattening
|
|
TVector<int> flattenOffset; // cumulative offset for flattening
|
|
|
|
// Sanitized type map. If the same type is sanitized again, we want to reuse it.
|
|
// We cannot index by the TType: the map is typelist to typelist.
|
|
TMap<const TTypeList*, TTypeList*> nonIoTypeMap;
|
|
|
|
// Structure splitting data:
|
|
TMap<int, TVariable*> splitIoVars; // variables with the builtin interstage IO removed, indexed by unique ID.
|
|
|
|
// The builtin interstage IO map considers e.g, EvqPosition on input and output separately, so that we
|
|
// can build the linkage correctly if position appears on both sides. Otherwise, multiple positions
|
|
// are considered identical.
|
|
struct tInterstageIoData {
|
|
tInterstageIoData(const TType& memberType, const TType& storageType) :
|
|
builtIn(memberType.getQualifier().builtIn),
|
|
storage(storageType.getQualifier().storage) { }
|
|
|
|
TBuiltInVariable builtIn;
|
|
TStorageQualifier storage;
|
|
|
|
// ordering for maps
|
|
bool operator<(const tInterstageIoData d) const {
|
|
return (builtIn != d.builtIn) ? (builtIn < d.builtIn) : (storage < d.storage);
|
|
}
|
|
};
|
|
|
|
TMap<tInterstageIoData, TVariable*> interstageBuiltInIo; // individual builtin interstage IO vars, inxed by builtin type.
|
|
|
|
// We have to move array references to structs containing builtin interstage IO to the split variables.
|
|
// This is only handled for one level. This stores the index, because we'll need it in the future, since
|
|
// unlike normal array references, here the index happens before we discover what it applies to.
|
|
TIntermTyped* builtInIoIndex;
|
|
TIntermTyped* builtInIoBase;
|
|
|
|
unsigned int nextInLocation;
|
|
unsigned int nextOutLocation;
|
|
|
|
TString sourceEntryPointName;
|
|
};
|
|
|
|
} // end namespace glslang
|
|
|
|
#endif // HLSL_PARSE_INCLUDED_
|