From b16b9e4656e7199c2aec74a4c8ebc7a875d3ba73 Mon Sep 17 00:00:00 2001 From: Mike Gabriel Date: Mon, 2 Feb 2015 15:02:49 +0100 Subject: massive reduction of unneeded files --- .../slang/MachineIndependent/ParseHelper.cpp | 1452 -------------------- 1 file changed, 1452 deletions(-) delete mode 100755 nx-X11/extras/Mesa/src/mesa/shader/slang/MachineIndependent/ParseHelper.cpp (limited to 'nx-X11/extras/Mesa/src/mesa/shader/slang/MachineIndependent/ParseHelper.cpp') diff --git a/nx-X11/extras/Mesa/src/mesa/shader/slang/MachineIndependent/ParseHelper.cpp b/nx-X11/extras/Mesa/src/mesa/shader/slang/MachineIndependent/ParseHelper.cpp deleted file mode 100755 index cfc42746a..000000000 --- a/nx-X11/extras/Mesa/src/mesa/shader/slang/MachineIndependent/ParseHelper.cpp +++ /dev/null @@ -1,1452 +0,0 @@ -// -//Copyright (C) 2002-2005 3Dlabs Inc. Ltd. -//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. -// - -#include "ParseHelper.h" -#include "Include/InitializeParseContext.h" -#include "osinclude.h" -#include -/////////////////////////////////////////////////////////////////////// -// -// Sub- vector and matrix fields -// -//////////////////////////////////////////////////////////////////////// - -// -// Look at a '.' field selector string and change it into offsets -// for a vector. -// -bool TParseContext::parseVectorFields(const TString& compString, int vecSize, TVectorFields& fields, int line) -{ - fields.num = (int) compString.size(); - if (fields.num > 4) { - error(line, "illegal vector field selection", compString.c_str(), ""); - return false; - } - - enum { - exyzw, - ergba, - estpq - } fieldSet[4]; - - for (int i = 0; i < fields.num; ++i) { - switch (compString[i]) { - case 'x': - fields.offsets[i] = 0; - fieldSet[i] = exyzw; - break; - case 'r': - fields.offsets[i] = 0; - fieldSet[i] = ergba; - break; - case 's': - fields.offsets[i] = 0; - fieldSet[i] = estpq; - break; - case 'y': - fields.offsets[i] = 1; - fieldSet[i] = exyzw; - break; - case 'g': - fields.offsets[i] = 1; - fieldSet[i] = ergba; - break; - case 't': - fields.offsets[i] = 1; - fieldSet[i] = estpq; - break; - case 'z': - fields.offsets[i] = 2; - fieldSet[i] = exyzw; - break; - case 'b': - fields.offsets[i] = 2; - fieldSet[i] = ergba; - break; - case 'p': - fields.offsets[i] = 2; - fieldSet[i] = estpq; - break; - - case 'w': - fields.offsets[i] = 3; - fieldSet[i] = exyzw; - break; - case 'a': - fields.offsets[i] = 3; - fieldSet[i] = ergba; - break; - case 'q': - fields.offsets[i] = 3; - fieldSet[i] = estpq; - break; - default: - error(line, "illegal vector field selection", compString.c_str(), ""); - return false; - } - } - - for (int i = 0; i < fields.num; ++i) { - if (fields.offsets[i] >= vecSize) { - error(line, "vector field selection out of range", compString.c_str(), ""); - return false; - } - - if (i > 0) { - if (fieldSet[i] != fieldSet[i-1]) { - error(line, "illegal - vector component fields not from the same set", compString.c_str(), ""); - return false; - } - } - } - - return true; -} - - -// -// Look at a '.' field selector string and change it into offsets -// for a matrix. -// -bool TParseContext::parseMatrixFields(const TString& compString, int matSize, TMatrixFields& fields, int line) -{ - fields.wholeRow = false; - fields.wholeCol = false; - fields.row = -1; - fields.col = -1; - - if (compString.size() != 2) { - error(line, "illegal length of matrix field selection", compString.c_str(), ""); - return false; - } - - if (compString[0] == '_') { - if (compString[1] < '0' || compString[1] > '3') { - error(line, "illegal matrix field selection", compString.c_str(), ""); - return false; - } - fields.wholeCol = true; - fields.col = compString[1] - '0'; - } else if (compString[1] == '_') { - if (compString[0] < '0' || compString[0] > '3') { - error(line, "illegal matrix field selection", compString.c_str(), ""); - return false; - } - fields.wholeRow = true; - fields.row = compString[0] - '0'; - } else { - if (compString[0] < '0' || compString[0] > '3' || - compString[1] < '0' || compString[1] > '3') { - error(line, "illegal matrix field selection", compString.c_str(), ""); - return false; - } - fields.row = compString[0] - '0'; - fields.col = compString[1] - '0'; - } - - if (fields.row >= matSize || fields.col >= matSize) { - error(line, "matrix field selection out of range", compString.c_str(), ""); - return false; - } - - return true; -} - -/////////////////////////////////////////////////////////////////////// -// -// Errors -// -//////////////////////////////////////////////////////////////////////// - -// -// Track whether errors have occurred. -// -void TParseContext::recover() -{ - recoveredFromError = true; -} - -// -// Used by flex/bison to output all syntax and parsing errors. -// -void C_DECL TParseContext::error(TSourceLoc nLine, const char *szReason, const char *szToken, - const char *szExtraInfoFormat, ...) -{ - char szExtraInfo[400]; - va_list marker; - - va_start(marker, szExtraInfoFormat); - - _vsnprintf(szExtraInfo, sizeof(szExtraInfo), szExtraInfoFormat, marker); - - /* VC++ format: file(linenum) : error #: 'token' : extrainfo */ - infoSink.info.prefix(EPrefixError); - infoSink.info.location(nLine); - infoSink.info << "'" << szToken << "' : " << szReason << " " << szExtraInfo << "\n"; - - va_end(marker); - - ++numErrors; -} - -// -// Same error message for all places assignments don't work. -// -void TParseContext::assignError(int line, const char* op, TString left, TString right) -{ - error(line, "", op, "cannot convert from '%s' to '%s'", - right.c_str(), left.c_str()); -} - -// -// Same error message for all places unary operations don't work. -// -void TParseContext::unaryOpError(int line, char* op, TString operand) -{ - error(line, " wrong operand type", op, - "no operation '%s' exists that takes an operand of type %s (or there is no acceptable conversion)", - op, operand.c_str()); -} - -// -// Same error message for all binary operations don't work. -// -void TParseContext::binaryOpError(int line, char* op, TString left, TString right) -{ - error(line, " wrong operand types ", op, - "no operation '%s' exists that takes a left-hand operand of type '%s' and " - "a right operand of type '%s' (or there is no acceptable conversion)", - op, left.c_str(), right.c_str()); -} - -// -// Both test and if necessary, spit out an error, to see if the node is really -// an l-value that can be operated on this way. -// -// Returns true if the was an error. -// -bool TParseContext::lValueErrorCheck(int line, char* op, TIntermTyped* node) -{ - TIntermSymbol* symNode = node->getAsSymbolNode(); - TIntermBinary* binaryNode = node->getAsBinaryNode(); - - if (binaryNode) { - bool errorReturn; - - switch(binaryNode->getOp()) { - case EOpIndexDirect: - case EOpIndexIndirect: - case EOpIndexDirectStruct: - return lValueErrorCheck(line, op, binaryNode->getLeft()); - case EOpVectorSwizzle: - errorReturn = lValueErrorCheck(line, op, binaryNode->getLeft()); - if (!errorReturn) { - int offset[4] = {0,0,0,0}; - - TIntermTyped* rightNode = binaryNode->getRight(); - TIntermAggregate *aggrNode = rightNode->getAsAggregate(); - - for (TIntermSequence::iterator p = aggrNode->getSequence().begin(); - p != aggrNode->getSequence().end(); p++) { - int value = (*p)->getAsTyped()->getAsConstantUnion()->getUnionArrayPointer()->iConst; - offset[value]++; - if (offset[value] > 1) { - error(line, " l-value of swizzle cannot have duplicate components", op, "", ""); - - return true; - } - } - } - - return errorReturn; - default: - break; - } - error(line, " l-value required", op, "", ""); - - return true; - } - - - const char* symbol = 0; - if (symNode != 0) - symbol = symNode->getSymbol().c_str(); - - char* message = 0; - switch (node->getQualifier()) { - case EvqConst: message = "can't modify a const"; break; - case EvqConstReadOnly: message = "can't modify a const"; break; - case EvqAttribute: message = "can't modify an attribute"; break; - case EvqUniform: message = "can't modify a uniform"; break; - case EvqVaryingIn: message = "can't modify a varying"; break; - case EvqInput: message = "can't modify an input"; break; - case EvqFace: message = "can't modify gl_FrontFace"; break; - case EvqFragCoord: message = "can't modify gl_FragCoord"; break; - default: - - // - // Type that can't be written to? - // - switch (node->getBasicType()) { - case EbtSampler1D: - case EbtSampler2D: - case EbtSampler3D: - case EbtSamplerCube: - case EbtSampler1DShadow: - case EbtSampler2DShadow: - message = "can't modify a sampler"; - break; - case EbtVoid: - message = "can't modify void"; - break; - default: - break; - } - } - - if (message == 0 && binaryNode == 0 && symNode == 0) { - error(line, " l-value required", op, "", ""); - - return true; - } - - - // - // Everything else is okay, no error. - // - if (message == 0) - return false; - - // - // If we get here, we have an error and a message. - // - if (symNode) - error(line, " l-value required", op, "\"%s\" (%s)", symbol, message); - else - error(line, " l-value required", op, "(%s)", message); - - return true; -} - -// -// Both test, and if necessary spit out an error, to see if the node is really -// a constant. -// -// Returns true if the was an error. -// -bool TParseContext::constErrorCheck(TIntermTyped* node) -{ - if (node->getQualifier() == EvqConst) - return false; - - error(node->getLine(), "constant expression required", "", ""); - - return true; -} - -// -// Both test, and if necessary spit out an error, to see if the node is really -// an integer. -// -// Returns true if the was an error. -// -bool TParseContext::integerErrorCheck(TIntermTyped* node, char* token) -{ - if (node->getBasicType() == EbtInt && node->getNominalSize() == 1) - return false; - - error(node->getLine(), "integer expression required", token, ""); - - return true; -} - -// -// Both test, and if necessary spit out an error, to see if we are currently -// globally scoped. -// -// Returns true if the was an error. -// -bool TParseContext::globalErrorCheck(int line, bool global, char* token) -{ - if (global) - return false; - - error(line, "only allowed at global scope", token, ""); - - return true; -} - -// -// For now, keep it simple: if it starts "gl_", it's reserved, independent -// of scope. Except, if the symbol table is at the built-in push-level, -// which is when we are parsing built-ins. -// -// Returns true if there was an error. -// -bool TParseContext::reservedErrorCheck(int line, const TString& identifier) -{ - if (symbolTable.atBuiltInLevel() || - identifier.substr(0, 3) != TString("gl_")) - return false; - - error(line, "reserved built-in name", "gl_", ""); - - return true; -} - -// -// Make sure there is enough data provided to the constructor to build -// something of the type of the constructor. Also returns the type of -// the constructor. -// -// Returns true if there was an error in construction. -// -bool TParseContext::constructorErrorCheck(int line, TIntermNode* node, TFunction& function, TOperator op, TType* type) -{ - switch(op) { - case EOpConstructInt: *type = TType(EbtInt); break; - case EOpConstructBool: *type = TType(EbtBool); break; - case EOpConstructFloat: *type = TType(EbtFloat); break; - case EOpConstructVec2: *type = TType(EbtFloat, EvqTemporary, 2); break; - case EOpConstructVec3: *type = TType(EbtFloat, EvqTemporary, 3); break; - case EOpConstructVec4: *type = TType(EbtFloat, EvqTemporary, 4); break; - case EOpConstructBVec2: *type = TType(EbtBool, EvqTemporary, 2); break; - case EOpConstructBVec3: *type = TType(EbtBool, EvqTemporary, 3); break; - case EOpConstructBVec4: *type = TType(EbtBool, EvqTemporary, 4); break; - case EOpConstructIVec2: *type = TType(EbtInt, EvqTemporary, 2); break; - case EOpConstructIVec3: *type = TType(EbtInt, EvqTemporary, 3); break; - case EOpConstructIVec4: *type = TType(EbtInt, EvqTemporary, 4); break; - case EOpConstructMat2: *type = TType(EbtFloat, EvqTemporary, 2, true); break; - case EOpConstructMat3: *type = TType(EbtFloat, EvqTemporary, 3, true); break; - case EOpConstructMat4: *type = TType(EbtFloat, EvqTemporary, 4, true); break; - case EOpConstructStruct: *type = TType(function.getReturnType().getStruct(), function.getReturnType().getTypeName()); break; - default: - error(line, "expected constructor", "Internal Error", ""); - return true; - } - - bool constructingMatrix = false; - switch(op) { - case EOpConstructMat2: - case EOpConstructMat3: - case EOpConstructMat4: - constructingMatrix = true; - break; - default: - break; - } - - // - // Note: It's okay to have too many components available, but not okay to have unused - // arguments. 'full' will go to true when enough args have been seen. If we loop - // again, there is an extra argument, so 'overfull' will become true. - // - - int size = 0; - bool constType = true; - bool full = false; - bool overFull = false; - bool matrixInMatrix = false; - for (int i = 0; i < function.getParamCount(); ++i) { - size += function[i].type->getInstanceSize(); - if (constructingMatrix && function[i].type->isMatrix()) - matrixInMatrix = true; - if (full) - overFull = true; - if (op != EOpConstructStruct && size >= type->getInstanceSize()) - full = true; - if (function[i].type->getQualifier() != EvqConst) - constType = false; - } - - if (constType) - type->changeQualifier(EvqConst); - - if (matrixInMatrix) { - error(line, "constructing matrix from matrix", "constructor", "(reserved)"); - return true; - } - - if (overFull) { - error(line, "too many arguments", "constructor", ""); - return true; - } - - if (size != 1 && size < type->getInstanceSize() || (size < 1) && op == EOpConstructStruct) { - error(line, "not enough data provided for construction", "constructor", ""); - return true; - } - - TIntermTyped* typed = node->getAsTyped(); - if (typed == 0) { - error(line, "constructor argument does not have a type", "constructor", ""); - return true; - } - if (op != EOpConstructStruct && IsSampler(typed->getBasicType())) { - error(line, "cannot convert a sampler", "constructor", ""); - return true; - } - if (typed->getBasicType() == EbtVoid) { - error(line, "cannot convert a void", "constructor", ""); - return true; - } - - return false; -} - -// This function checks to see if a void variable has been declared and raise an error message for such a case -// -// returns true in case of an error -// -bool TParseContext::voidErrorCheck(int line, const TString& identifier, const TPublicType& pubType) -{ - if (pubType.type == EbtVoid) { - error(line, "illegal use of type 'void'", identifier.c_str(), ""); - return true; - } - - return false; -} - -// This function checks to see if the node (for the expression) contains a scalar boolean expression or not -// -// returns true in case of an error -// -bool TParseContext::boolErrorCheck(int line, const TIntermTyped* type) -{ - if (type->getBasicType() != EbtBool || type->isArray() || type->isMatrix() || type->isVector()) { - error(line, "boolean expression expected", "", ""); - return true; - } - - return false; -} - -// This function checks to see if the node (for the expression) contains a scalar boolean expression or not -// -// returns true in case of an error -// -bool TParseContext::boolErrorCheck(int line, const TPublicType& pType) -{ - if (pType.type != EbtBool || pType.array || pType.matrix || (pType.size > 1)) { - error(line, "boolean expression expected", "", ""); - return true; - } - - return false; -} - -bool TParseContext::samplerErrorCheck(int line, const TPublicType& pType, const char* reason) -{ - if (pType.type == EbtStruct) { - if (containsSampler(*pType.userDef)) { - error(line, reason, TType::getBasicString(pType.type), "(structure contains a sampler)"); - - return true; - } - - return false; - } else if (IsSampler(pType.type)) { - error(line, reason, TType::getBasicString(pType.type), ""); - - return true; - } - - return false; -} - -bool TParseContext::structQualifierErrorCheck(int line, const TPublicType& pType) -{ - if ((pType.qualifier == EvqVaryingIn || pType.qualifier == EvqVaryingOut || pType.qualifier == EvqAttribute) && - pType.type == EbtStruct) { - error(line, "cannot be used with a structure", getQualifierString(pType.qualifier), ""); - - return true; - } - - if (pType.qualifier != EvqUniform && samplerErrorCheck(line, pType, "samplers must be uniform")) - return true; - - return false; -} - -bool TParseContext::parameterSamplerErrorCheck(int line, TQualifier qualifier, const TType& type) -{ - if ((qualifier == EvqOut || qualifier == EvqInOut) && - type.getBasicType() != EbtStruct && IsSampler(type.getBasicType())) { - error(line, "samplers cannot be output parameters", type.getBasicString(), ""); - return true; - } - - return false; -} - -bool TParseContext::containsSampler(TType& type) -{ - if (IsSampler(type.getBasicType())) - return true; - - if (type.getBasicType() == EbtStruct) { - TTypeList& structure = *type.getStruct(); - for (unsigned int i = 0; i < structure.size(); ++i) { - if (containsSampler(*structure[i].type)) - return true; - } - } - - return false; -} - -bool TParseContext::insertBuiltInArrayAtGlobalLevel() -{ - TString *name = NewPoolTString("gl_TexCoord"); - TSymbol* symbol = symbolTable.find(*name); - if (!symbol) { - error(0, "INTERNAL ERROR finding symbol", name->c_str(), ""); - return true; - } - TVariable* variable = static_cast(symbol); - - TVariable* newVariable = new TVariable(name, variable->getType()); - - if (! symbolTable.insert(*newVariable)) { - delete newVariable; - error(0, "INTERNAL ERROR inserting new symbol", name->c_str(), ""); - return true; - } - - return false; -} - -// -// Do all the semantic checking for declaring an array, with and -// without a size, and make the right changes to the symbol table. -// -// size == 0 means no specified size. -// -// Returns true if there was an error. -// -bool TParseContext::arrayErrorCheck(int line, TString& identifier, TPublicType type, TIntermTyped* size) -{ - // - // Don't check for reserved word use until after we know it's not in the symbol table, - // because reserved arrays can be redeclared. - // - - // - // Can the type be an array? - // - if (type.array || type.qualifier == EvqAttribute || type.qualifier == EvqConst) { - error(line, "cannot declare arrays of this type", TType(type).getCompleteString().c_str(), ""); - return true; - } - type.array = true; - - // - // size will be 0 if there is no size declared, otherwise it contains the size - // declared. - // - TIntermConstantUnion* constant = 0; - if (size) { - constant = size->getAsConstantUnion(); - if (constant == 0 || constant->getBasicType() != EbtInt || constant->getUnionArrayPointer()->iConst <= 0) { - error(line, "array size must be a positive integer", identifier.c_str(), ""); - return true; - } - } - - bool builtIn = false; - bool sameScope = false; - TSymbol* symbol = symbolTable.find(identifier, &builtIn, &sameScope); - if (symbol == 0 || !sameScope) { - if (reservedErrorCheck(line, identifier)) - return true; - - TVariable* variable = new TVariable(&identifier, TType(type)); - - if (size) - variable->getType().setArraySize(constant->getUnionArrayPointer()->iConst); - - if (! symbolTable.insert(*variable)) { - delete variable; - error(line, "INTERNAL ERROR inserting new symbol", identifier.c_str(), ""); - return true; - } - } else { - if (! symbol->isVariable()) { - error(line, "variable expected", identifier.c_str(), ""); - return true; - } - - TVariable* variable = static_cast(symbol); - if (! variable->getType().isArray()) { - error(line, "redeclaring non-array as array", identifier.c_str(), ""); - return true; - } - if (variable->getType().getArraySize() > 0) { - error(line, "redeclaration of array with size", identifier.c_str(), ""); - return true; - } - - if (variable->getType() != TType(type)) { - error(line, "redeclaration of array with a different type", identifier.c_str(), ""); - return true; - } - - TType* t = variable->getArrayInformationType(); - while (t != 0) { - if (t->getMaxArraySize() > constant->getUnionArrayPointer()->iConst) { - error(line, "higher index value already used for the array", identifier.c_str(), ""); - return true; - } - t->setArraySize(constant->getUnionArrayPointer()->iConst); - t = t->getArrayInformationType(); - } - - if (size) - variable->getType().setArraySize(constant->getUnionArrayPointer()->iConst); - } - - if (voidErrorCheck(line, identifier, type)) - return true; - - return false; -} - -bool TParseContext::arraySetMaxSize(TIntermSymbol *node, TType* type, int size, bool updateFlag, TSourceLoc line) -{ - bool builtIn = false; - TSymbol* symbol = symbolTable.find(node->getSymbol(), &builtIn); - if (symbol == 0) { - error(line, " undeclared identifier", node->getSymbol().c_str(), ""); - return true; - } - TVariable* variable = static_cast(symbol); - - type->setArrayInformationType(variable->getArrayInformationType()); - variable->updateArrayInformationType(type); - - // we dont want to update the maxArraySize when this flag is not set, we just want to include this - // node type in the chain of node types so that its updated when a higher maxArraySize comes in. - if (!updateFlag) - return false; - - size++; - variable->getType().setMaxArraySize(size); - type->setMaxArraySize(size); - TType* tt = type; - - while(tt->getArrayInformationType() != 0) { - tt = tt->getArrayInformationType(); - tt->setMaxArraySize(size); - } - - return false; -} - -// -// Do semantic checking for a variable declaration that has no initializer, -// and update the symbol table. -// -// Returns true if there was an error. -// -bool TParseContext::nonInitErrorCheck(int line, TString& identifier, TPublicType& type) -{ - if (reservedErrorCheck(line, identifier)) - recover(); - - // - // Make the qualifier make sense, error is issued in a little bit. - // - bool constError = false; - if (type.qualifier == EvqConst) { - type.qualifier = EvqTemporary; - constError = true; - } - - TVariable* variable = new TVariable(&identifier, TType(type)); - - if (! symbolTable.insert(*variable)) { - error(line, "redefinition", variable->getName().c_str(), ""); - delete variable; - return true; - } - if (constError) { - error(line, "variables with qualifier 'const' must be initialized", identifier.c_str(), ""); - return true; - } - - if (voidErrorCheck(line, identifier, type)) - return true; - - return false; -} - -bool TParseContext::paramErrorCheck(int line, TQualifier qualifier, TQualifier paramQualifier, TType* type) -{ - if (qualifier != EvqConst && qualifier != EvqTemporary) { - error(line, "qualifier not allowed on function parameter", getQualifierString(qualifier), ""); - return true; - } - if (qualifier == EvqConst && paramQualifier != EvqIn) { - error(line, "qualifier not allowed with ", getQualifierString(qualifier), getQualifierString(paramQualifier)); - return true; - } - - if (qualifier == EvqConst) - type->changeQualifier(EvqConstReadOnly); - else - type->changeQualifier(paramQualifier); - - return false; -} - -///////////////////////////////////////////////////////////////////////////////// -// -// Non-Errors. -// -///////////////////////////////////////////////////////////////////////////////// - -// -// Look up a function name in the symbol table, and make sure it is a function. -// -// Return the function symbol if found, otherwise 0. -// -const TFunction* TParseContext::findFunction(int line, TFunction* call, bool *builtIn) -{ - const TSymbol* symbol = symbolTable.find(call->getMangledName(), builtIn); - - if (symbol == 0) { - error(line, "no matching overloaded function found", call->getName().c_str(), ""); - return 0; - } - - if (! symbol->isFunction()) { - error(line, "function name expected", call->getName().c_str(), ""); - return 0; - } - - const TFunction* function = static_cast(symbol); - - return function; -} -// -// Initializers show up in several places in the grammar. Have one set of -// code to handle them here. -// -bool TParseContext::executeInitializer(TSourceLoc line, TString& identifier, TPublicType& pType, - TIntermTyped* initializer, TIntermNode*& intermNode) -{ - if (reservedErrorCheck(line, identifier)) - return true; - - if (voidErrorCheck(line, identifier, pType)) - return true; - - // - // add variable to symbol table - // - TVariable* variable = new TVariable(&identifier, TType(pType)); - if (! symbolTable.insert(*variable)) { - error(line, "redefinition", variable->getName().c_str(), ""); - return true; - // don't delete variable, it's used by error recovery, and the pool - // pop will take care of the memory - } - - // - // identifier must be of type constant, a global, or a temporary - // - TQualifier qualifier = variable->getType().getQualifier(); - if ((qualifier != EvqTemporary) && (qualifier != EvqGlobal) && (qualifier != EvqConst)) { - error(line, " cannot initialize this type of qualifier ", variable->getType().getQualifierString(), ""); - return true; - } - // - // test for and propagate constant - // - - if (qualifier == EvqConst) { - if (qualifier != initializer->getType().getQualifier()) { - error(line, " assigning non-constant to", "=", "'%s'", variable->getType().getCompleteString().c_str()); - variable->getType().changeQualifier(EvqTemporary); - return true; - } - if (TType(pType) != initializer->getType()) { - error(line, " non-matching types for const initializer ", - variable->getType().getQualifierString(), ""); - variable->getType().changeQualifier(EvqTemporary); - return true; - } - if (initializer->getAsConstantUnion()) { - constUnion* unionArray = variable->getConstPointer(); - - if (pType.size == 1 && TType(pType).getBasicType() != EbtStruct) { - switch (pType.type ) { - case EbtInt: - unionArray->iConst = (initializer->getAsConstantUnion()->getUnionArrayPointer())[0].iConst; - break; - case EbtFloat: - unionArray->fConst = (initializer->getAsConstantUnion()->getUnionArrayPointer())[0].fConst; - break; - case EbtBool: - unionArray->bConst = (initializer->getAsConstantUnion()->getUnionArrayPointer())[0].bConst; - break; - default: - error(line, " cannot initialize constant of this type", "", ""); - return true; - } - } else { - variable->shareConstPointer(initializer->getAsConstantUnion()->getUnionArrayPointer()); - } - } else if (initializer->getAsAggregate()) { - bool returnVal = false; - constUnion* unionArray = variable->getConstPointer(); - if (initializer->getAsAggregate()->getSequence().size() == 1 && initializer->getAsAggregate()->getSequence()[0]->getAsTyped()->getAsConstantUnion()) { - returnVal = intermediate.parseConstTree(line, initializer, unionArray, initializer->getAsAggregate()->getOp(), symbolTable, variable->getType(), true); - } - else { - returnVal = intermediate.parseConstTree(line, initializer, unionArray, initializer->getAsAggregate()->getOp(), symbolTable, variable->getType()); - } - intermNode = 0; - constUnion *arrayUnion = unionArray; - if (returnVal) { - arrayUnion = 0; - variable->getType().changeQualifier(EvqTemporary); - } - return returnVal; - } else if (initializer->getAsSymbolNode()) { - const TSymbol* symbol = symbolTable.find(initializer->getAsSymbolNode()->getSymbol()); - const TVariable* tVar = static_cast(symbol); - - constUnion* constArray = tVar->getConstPointer(); - variable->shareConstPointer(constArray); - } else { - error(line, " assigning non-constant to", "=", "'%s'", variable->getType().getCompleteString().c_str()); - variable->getType().changeQualifier(EvqTemporary); - return true; - } - } - - if (qualifier != EvqConst) { - TIntermSymbol* intermSymbol = intermediate.addSymbol(variable->getUniqueId(), variable->getName(), variable->getType(), line); - intermNode = intermediate.addAssign(EOpAssign, intermSymbol, initializer, line); - if (intermNode == 0) { - assignError(line, "=", intermSymbol->getCompleteString(), initializer->getCompleteString()); - return true; - } - } else - intermNode = 0; - - return false; -} - -// -// This method checks to see if the given aggregate node has all its children nodes as constants -// This method does not test if structure members are constant -// -bool TParseContext::canNodeBeRemoved(TIntermNode* childNode) -{ - TIntermAggregate *aggrNode = childNode->getAsAggregate(); - if (!aggrNode) - return false; - - if (!aggrNode->isConstructor() || aggrNode->getOp() == EOpConstructStruct) - return false; - - bool allConstant = true; - - // check if all the child nodes are constants so that they can be inserted into - // the parent node - if (aggrNode) { - TIntermSequence &childSequenceVector = aggrNode->getSequence() ; - for (TIntermSequence::iterator p = childSequenceVector.begin(); - p != childSequenceVector.end(); p++) { - if (!(*p)->getAsTyped()->getAsConstantUnion()) - return false; - } - } - - return allConstant; -} - -// This function is used to test for the correctness of the parameters passed to various constructor functions -// and also convert them to the right datatype if it is allowed and required. -// -// Returns 0 for an error or the constructed node (aggregate or typed) for no error. -// -TIntermTyped* TParseContext::addConstructor(TIntermNode* node, TType* type, TOperator op, TFunction* fnCall, TSourceLoc line) -{ - if (node == 0) - return 0; - - TIntermAggregate* aggrNode = node->getAsAggregate(); - - TTypeList::iterator list; - TTypeList* structure = 0; // Store the information (vector) about the return type of the structure. - if (op == EOpConstructStruct) { - const TType& ttype = fnCall->getReturnType(); - structure = ttype.getStruct(); - list = (*structure).begin(); - } - - bool singleArg; - if (aggrNode) { - if (aggrNode->getOp() != EOpNull || aggrNode->getSequence().size() == 1) - singleArg = true; - else - singleArg = false; - } else - singleArg = true; - - TIntermTyped *newNode; - if (singleArg) { - if (op == EOpConstructStruct) { - // If structure constructor is being called for only one parameter inside the structure, - // we need to call constructStruct function once. - if (structure->size() != 1) { - error(line, "Number of constructor parameters does not match the number of structure fields", "constructor", ""); - - return 0; - } else - return constructStruct(node, (*list).type, 1, node->getLine(), false); - } else { - newNode = constructBuiltIn(type, op, node, node->getLine(), false); - if (newNode && newNode->getAsAggregate()) { - if (canNodeBeRemoved(newNode->getAsAggregate()->getSequence()[0])) { - TIntermAggregate* returnAggNode = newNode->getAsAggregate()->getSequence()[0]->getAsAggregate(); - newNode = intermediate.removeChildNode(newNode, type, returnAggNode); - } - } - return newNode; - } - } - - // - // Handle list of arguments. - // - TIntermSequence &sequenceVector = aggrNode->getSequence() ; // Stores the information about the parameter to the constructor - // if the structure constructor contains more than one parameter, then construct - // each parameter - if (op == EOpConstructStruct) { - if (structure->size() != sequenceVector.size()) { // If the number of parameters to the constructor does not match the expected number of parameters - error(line, "Number of constructor parameters does not match the number of structure fields", "constructor", ""); - - return 0; - } - } - - int paramCount = 0; // keeps a track of the constructor parameter number being checked - - // for each parameter to the constructor call, check to see if the right type is passed or convert them - // to the right type if possible (and allowed). - // for structure constructors, just check if the right type is passed, no conversion is allowed. - - for (TIntermSequence::iterator p = sequenceVector.begin(); - p != sequenceVector.end(); p++, paramCount++) { - bool move = false; - if (op == EOpConstructStruct) { - newNode = constructStruct(*p, (list[paramCount]).type, paramCount+1, node->getLine(), true); - if (newNode) - move = true; - } else { - newNode = constructBuiltIn(type, op, *p, node->getLine(), true); - - if (newNode) { - if (canNodeBeRemoved(newNode)) - intermediate.removeChildNode(sequenceVector, *type, paramCount, p, newNode->getAsAggregate()); - else - move = true; - } - } - if (move) { - sequenceVector.erase(p); - sequenceVector.insert(p, newNode); - } - } - - return intermediate.setAggregateOperator(aggrNode, op, line); -} - -// Function for constructor implementation. Calls addUnaryMath with appropriate EOp value -// for the parameter to the constructor (passed to this function). Essentially, it converts -// the parameter types correctly. If a constructor expects an int (like ivec2) and is passed a -// float, then float is converted to int. -// -// Returns 0 for an error or the constructed node. -// -TIntermTyped* TParseContext::constructBuiltIn(TType* type, TOperator op, TIntermNode* node, TSourceLoc line, bool subset) -{ - TIntermTyped* newNode; - TOperator basicOp; - - // - // First, convert types as needed. - // - switch (op) { - case EOpConstructVec2: - case EOpConstructVec3: - case EOpConstructVec4: - case EOpConstructMat2: - case EOpConstructMat3: - case EOpConstructMat4: - case EOpConstructFloat: - basicOp = EOpConstructFloat; - break; - - case EOpConstructIVec2: - case EOpConstructIVec3: - case EOpConstructIVec4: - case EOpConstructInt: - basicOp = EOpConstructInt; - break; - - case EOpConstructBVec2: - case EOpConstructBVec3: - case EOpConstructBVec4: - case EOpConstructBool: - basicOp = EOpConstructBool; - break; - - default: - error(line, "unsupported construction", "", ""); - recover(); - - return 0; - } - newNode = intermediate.addUnaryMath(basicOp, node, node->getLine(), symbolTable); - if (newNode == 0) { - error(line, "can't convert", "constructor", ""); - return 0; - } - - // - // Now, if there still isn't an operation to do the construction, and we need one, add one. - // - - // Otherwise, skip out early. - if (subset || newNode != node && newNode->getType() == *type) - return newNode; - - // setAggregateOperator will insert a new node for the constructor, as needed. - return intermediate.setAggregateOperator(newNode, op, line); -} - -// This function tests for the type of the parameters to the structures constructors. Raises -// an error message if the expected type does not match the parameter passed to the constructor. -// -// Returns 0 for an error or the input node itself if the expected and the given parameter types match. -// -TIntermTyped* TParseContext::constructStruct(TIntermNode* node, TType* type, int paramCount, TSourceLoc line, bool subset) -{ - if (*type == node->getAsTyped()->getType()) { - if (subset) - return node->getAsTyped(); - else - return intermediate.setAggregateOperator(node->getAsTyped(), EOpConstructStruct, line); - } else { - error(line, "", "constructor", "cannot convert parameter %d from '%s' to '%s'", paramCount, - node->getAsTyped()->getType().getBasicString(), type->getBasicString()); - recover(); - } - - return 0; -} - -// -// This function returns the tree representation for the vector field(s) being accessed from contant vector. -// If only one component of vector is accessed (v.x or v[0] where v is a contant vector), then a contant node is -// returned, else an aggregate node is returned (for v.xy). The input to this function could either be the symbol -// node or it could be the intermediate tree representation of accessing fields in a constant structure or column of -// a constant matrix. -// -TIntermTyped* TParseContext::addConstVectorNode(TVectorFields& fields, TIntermTyped* node, TSourceLoc line) -{ - TIntermTyped* typedNode; - TIntermConstantUnion* tempConstantNode = node->getAsConstantUnion(); - TIntermAggregate* aggregateNode = node->getAsAggregate(); - - constUnion *unionArray; - if (tempConstantNode) { - unionArray = tempConstantNode->getUnionArrayPointer(); - - if (!unionArray) { // this error message should never be raised - infoSink.info.message(EPrefixInternalError, "constUnion not initialized in addConstVectorNode function", line); - recover(); - - return node; - } - } else if (aggregateNode) { // if an aggregate node is present, the value has to be taken from the parse tree - // for a case like vec(4).xz - unionArray = new constUnion[aggregateNode->getType().getInstanceSize()]; - - bool returnVal = false; - if (aggregateNode->getAsAggregate()->getSequence().size() == 1 && aggregateNode->getAsAggregate()->getSequence()[0]->getAsTyped()->getAsConstantUnion()) { - returnVal = intermediate.parseConstTree(line, aggregateNode, unionArray, aggregateNode->getOp(), symbolTable, aggregateNode->getType(), true); - } - else { - returnVal = intermediate.parseConstTree(line, aggregateNode, unionArray, aggregateNode->getOp(), symbolTable, aggregateNode->getType()); - } - - if (returnVal) - return 0; - - } else { // The node has to be either a symbol node or an aggregate node or a tempConstant node, else, its an error - error(line, "No aggregate or constant union node available", "Internal Error", ""); - recover(); - - return 0; - } - - constUnion* constArray = new constUnion[fields.num]; - - for (int i = 0; i < fields.num; i++) { - if (fields.offsets[i] >= node->getType().getInstanceSize()) { - error(line, "", "[", "vector field selection out of range '%d'", fields.offsets[i]); - recover(); - fields.offsets[i] = 0; - } - - constArray[i] = unionArray[fields.offsets[i]]; - - } - typedNode = intermediate.addConstantUnion(constArray, node->getType(), line); - return typedNode; -} - -// -// This function returns the column being accessed from a constant matrix. The values are retrieved from -// the symbol table and parse-tree is built for a vector (each column of a matrix is a vector). The input -// to the function could either be a symbol node (m[0] where m is a constant matrix)that represents a -// constant matrix or it could be the tree representation of the constant matrix (s.m1[0] where s is a constant structure) -// -TIntermTyped* TParseContext::addConstMatrixNode(int index, TIntermTyped* node, TSourceLoc line) -{ - TIntermTyped* typedNode; - TIntermConstantUnion* tempConstantNode = node->getAsConstantUnion(); - TIntermAggregate* aggregateNode = node->getAsAggregate(); - - if (index >= node->getType().getNominalSize()) { - error(line, "", "[", "matrix field selection out of range '%d'", index); - recover(); - index = 0; - } - - if (tempConstantNode) { - constUnion* unionArray = tempConstantNode->getUnionArrayPointer(); - int size = tempConstantNode->getType().getNominalSize(); - typedNode = intermediate.addConstantUnion(&unionArray[size*index], tempConstantNode->getType(), line); - } else if (aggregateNode) { - // for a case like mat4(5)[0] - constUnion* unionArray = new constUnion[aggregateNode->getType().getInstanceSize()]; - int size = aggregateNode->getType().getNominalSize(); - - bool returnVal = false; - if (aggregateNode->getAsAggregate()->getSequence().size() == 1 && aggregateNode->getAsAggregate()->getSequence()[0]->getAsTyped()->getAsConstantUnion()) { - returnVal = intermediate.parseConstTree(line, aggregateNode, unionArray, aggregateNode->getOp(), symbolTable, aggregateNode->getType(), true); - } - else { - returnVal = intermediate.parseConstTree(line, aggregateNode, unionArray, aggregateNode->getOp(), symbolTable, aggregateNode->getType()); - } - - if (!returnVal) - typedNode = intermediate.addConstantUnion(&unionArray[size*index], aggregateNode->getType(), line); - else - return 0; - - } else { - error(line, "No Aggregate or Constant Union node available", "Internal Error", ""); - recover(); - - return 0; - } - - return typedNode; -} - -// -// This function returns the value of a particular field inside a constant structure from the symbol table. -// If there is an embedded/nested struct, it appropriately calls addConstStructNested or addConstStructFromAggr -// function and returns the parse-tree with the values of the embedded/nested struct. -// -TIntermTyped* TParseContext::addConstStruct(TString& identifier, TIntermTyped* node, TSourceLoc line) -{ - TTypeList* fields = node->getType().getStruct(); - TIntermTyped *typedNode; - int instanceSize = 0; - unsigned int index = 0; - TIntermConstantUnion *tempConstantNode = node->getAsConstantUnion(); - TIntermAggregate* aggregateNode = node->getAsAggregate(); - - for ( index = 0; index < fields->size(); ++index) { - if ((*fields)[index].type->getFieldName() == identifier) { - break; - } else { - if ((*fields)[index].type->getStruct()) - //?? We should actually be calling getStructSize() function and not setStructSize. This problem occurs in case - // of nested/embedded structs. - instanceSize += (*fields)[index].type->setStructSize((*fields)[index].type->getStruct()); - else - instanceSize += (*fields)[index].type->getInstanceSize(); - } - } - - if (tempConstantNode) { - constUnion* constArray = tempConstantNode->getUnionArrayPointer(); - - typedNode = intermediate.addConstantUnion(constArray+instanceSize, tempConstantNode->getType(), line); // type will be changed in the calling function - } else if (aggregateNode) { - // for a case like constStruct(1,v3).i where structure fields is int i and vec3 v3. - - constUnion* unionArray = new constUnion[aggregateNode->getType().getStructSize()]; - - bool returnVal = false; - if (aggregateNode->getAsAggregate()->getSequence().size() == 1 && aggregateNode->getAsAggregate()->getSequence()[0]->getAsTyped()->getAsConstantUnion()) { - returnVal = intermediate.parseConstTree(line, aggregateNode, unionArray, aggregateNode->getOp(), symbolTable, aggregateNode->getType(), true); - } - else { - returnVal = intermediate.parseConstTree(line, aggregateNode, unionArray, aggregateNode->getOp(), symbolTable, aggregateNode->getType()); - } - - if (!returnVal) - typedNode = intermediate.addConstantUnion(unionArray+instanceSize, aggregateNode->getType(), line); - else - return 0; - - } else { - error(line, "No Aggregate or Constant Union node available", "Internal Error", ""); - recover(); - - return 0; - } - - return typedNode; -} - -// -// Initialize all supported extensions to disable -// -void TParseContext::initializeExtensionBehavior() -{ - // - // example code: extensionBehavior["test"] = EDisable; // where "test" is the name of - // supported extension - // -} - -OS_TLSIndex GlobalParseContextIndex = OS_INVALID_TLS_INDEX; - -bool InitializeParseContextIndex() -{ - if (GlobalParseContextIndex != OS_INVALID_TLS_INDEX) { - assert(0 && "InitializeParseContextIndex(): Parse Context already initalised"); - return false; - } - - // - // Allocate a TLS index. - // - GlobalParseContextIndex = OS_AllocTLSIndex(); - - if (GlobalParseContextIndex == OS_INVALID_TLS_INDEX) { - assert(0 && "InitializeParseContextIndex(): Parse Context already initalised"); - return false; - } - - return true; -} - -bool InitializeGlobalParseContext() -{ - if (GlobalParseContextIndex == OS_INVALID_TLS_INDEX) { - assert(0 && "InitializeGlobalParseContext(): Parse Context index not initalised"); - return false; - } - - TThreadParseContext *lpParseContext = static_cast(OS_GetTLSValue(GlobalParseContextIndex)); - if (lpParseContext != 0) { - assert(0 && "InitializeParseContextIndex(): Parse Context already initalised"); - return false; - } - - TThreadParseContext *lpThreadData = new TThreadParseContext(); - if (lpThreadData == 0) { - assert(0 && "InitializeGlobalParseContext(): Unable to create thread parse context"); - return false; - } - - lpThreadData->lpGlobalParseContext = 0; - OS_SetTLSValue(GlobalParseContextIndex, lpThreadData); - - return true; -} - -TParseContextPointer& GetGlobalParseContext() -{ - // - // Minimal error checking for speed - // - - TThreadParseContext *lpParseContext = static_cast(OS_GetTLSValue(GlobalParseContextIndex)); - - return lpParseContext->lpGlobalParseContext; -} - -bool FreeParseContext() -{ - if (GlobalParseContextIndex == OS_INVALID_TLS_INDEX) { - assert(0 && "FreeParseContext(): Parse Context index not initalised"); - return false; - } - - TThreadParseContext *lpParseContext = static_cast(OS_GetTLSValue(GlobalParseContextIndex)); - if (lpParseContext) - delete lpParseContext; - - return true; -} - -bool FreeParseContextIndex() -{ - OS_TLSIndex tlsiIndex = GlobalParseContextIndex; - - if (GlobalParseContextIndex == OS_INVALID_TLS_INDEX) { - assert(0 && "FreeParseContextIndex(): Parse Context index not initalised"); - return false; - } - - GlobalParseContextIndex = OS_INVALID_TLS_INDEX; - - return OS_FreeTLSIndex(tlsiIndex); -} -- cgit v1.2.3