mirror of
https://github.com/KhronosGroup/glslang
synced 2024-11-13 05:30:06 +00:00
236 lines
13 KiB
C++
Executable File
236 lines
13 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 HlslParseContext : public TParseContextBase {
|
|
public:
|
|
HlslParseContext(TSymbolTable&, TIntermediate&, bool parsingBuiltins,
|
|
int version, EProfile, const SpvVersion& spvVersion, 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&, TSymbol* symbol, 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);
|
|
void decomposeSampleMethods(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&);
|
|
void handleSemantic(TType& type, const TString& semantic);
|
|
|
|
TIntermAggregate* handleSamplerTextureCombine(const TSourceLoc& loc, TIntermTyped* argTex, TIntermTyped* argSampler);
|
|
|
|
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 paramFix(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);
|
|
void declareTypedef(const TSourceLoc&, TString& identifier, const TType&, TArraySizes* typeArray = 0);
|
|
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); }
|
|
|
|
void pushSwitchSequence(TIntermSequence* sequence) { switchSequenceStack.push_back(sequence); }
|
|
void popSwitchSequence() { switchSequenceStack.pop_back(); }
|
|
|
|
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;
|
|
TOperator mapAtomicOp(const TSourceLoc& loc, TOperator op, bool isImage);
|
|
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
|
|
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_
|