Remove ANGLE

This marks the end of EGL and OpenGL ES support on Windows.

The concepts of -opengl dynamic, -opengl desktop, QT_OPENGL=software,
etc. remain unchanged, with the exception of the disapperance of
everything ANGLE related.

CMake builds now work identically to qmake on Windows: they default to
'dynamic' OpenGL on Windows, unless -DINPUT_opengl=desktop is specified.

On Windows, Qt 6 is expected to default to the "dynamic" OpenGL model by
default, just like Qt 5.15. This can be changed by switching to "desktop"
OpenGL, which will link to opengl32 (publicly, so other libs and applications
will do so as well) and disallows using another OpenGL DLL.

The "dynamic" mode is essential still because the fallback to a software
rasterizer, such as the opengl32sw.dll we ship with the Qt packages,
has to to work exactly like in Qt 5, the removal of ANGLE does not
change this concept in any way (except of course that the middle option
of using ANGLE is now gone)

When it comes to the windows plugin's OpenGL blacklist feature, it works
like before and accepts the ANGLE/D3D related keywords. They will
then be ignored. Similarly, requesting QT_OPENGL=angle is ignored (but
will show a warning).

The D3D11 and DXGI configure time tests are removed: Qt 5.14 already
depends on D3D 11.1 and DXGI 1.3 headers being available unconditionally
on Win32 (in QRhi's D3D11 backend). No need to test for these.

[ChangeLog][Windows] ANGLE is no longer included with Qt. Dynamic OpenGL
builds work like before but ANGLE is no longer an option. OpenGL proper
or an alternative opengl32 implementation are the two remaining options
now. Attempting to set QT_OPENGL=angle or Qt::AA_UseOpenGLES will have
no effect on Windows.

Fixes: QTBUG-79103
Change-Id: Ia404e0d07f3fe191b27434d863c81180112ecb3b
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>

1 files changed, 0 insertions, 622 deletions

diff --git a/src/3rdparty/angle/src/compiler/translator/SymbolTable.cpp b/src/3rdparty/angle/src/compiler/translator/SymbolTable.cpp
deleted file mode 100644
index 6c38461469..0000000000
--- a/src/3rdparty/angle/src/compiler/translator/SymbolTable.cpp
+++ /dev/null
@@ -1,622 +0,0 @@
-//
-// Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-//
-// Symbol table for parsing. The design principles and most of the functionality are documented in
-// the header file.
-//
-
-#if defined(_MSC_VER)
-#pragma warning(disable : 4718)
-#endif
-
-#include "compiler/translator/SymbolTable.h"
-
-#include "compiler/translator/Cache.h"
-#include "compiler/translator/IntermNode.h"
-
-#include <stdio.h>
-#include <algorithm>
-
-namespace sh
-{
-
-namespace
-{
-
-static const char kFunctionMangledNameSeparator = '(';
-
-}  // anonymous namespace
-
-TSymbol::TSymbol(TSymbolTable *symbolTable, const TString *n)
-    : uniqueId(symbolTable->nextUniqueId()), name(n), extension(TExtension::UNDEFINED)
-{
-}
-
-//
-// Functions have buried pointers to delete.
-//
-TFunction::~TFunction()
-{
-    clearParameters();
-}
-
-void TFunction::clearParameters()
-{
-    for (TParamList::iterator i = parameters.begin(); i != parameters.end(); ++i)
-        delete (*i).type;
-    parameters.clear();
-    mangledName = nullptr;
-}
-
-void TFunction::swapParameters(const TFunction &parametersSource)
-{
-    clearParameters();
-    for (auto parameter : parametersSource.parameters)
-    {
-        addParameter(parameter);
-    }
-}
-
-const TString *TFunction::buildMangledName() const
-{
-    std::string newName = getName().c_str();
-    newName += kFunctionMangledNameSeparator;
-
-    for (const auto &p : parameters)
-    {
-        newName += p.type->getMangledName();
-    }
-    return NewPoolTString(newName.c_str());
-}
-
-const TString &TFunction::GetMangledNameFromCall(const TString &functionName,
-                                                 const TIntermSequence &arguments)
-{
-    std::string newName = functionName.c_str();
-    newName += kFunctionMangledNameSeparator;
-
-    for (TIntermNode *argument : arguments)
-    {
-        newName += argument->getAsTyped()->getType().getMangledName();
-    }
-    return *NewPoolTString(newName.c_str());
-}
-
-//
-// Symbol table levels are a map of pointers to symbols that have to be deleted.
-//
-TSymbolTableLevel::~TSymbolTableLevel()
-{
-    for (tLevel::iterator it = level.begin(); it != level.end(); ++it)
-        delete (*it).second;
-}
-
-bool TSymbolTableLevel::insert(TSymbol *symbol)
-{
-    // returning true means symbol was added to the table
-    tInsertResult result = level.insert(tLevelPair(symbol->getMangledName(), symbol));
-
-    return result.second;
-}
-
-bool TSymbolTableLevel::insertUnmangled(TFunction *function)
-{
-    // returning true means symbol was added to the table
-    tInsertResult result = level.insert(tLevelPair(function->getName(), function));
-
-    return result.second;
-}
-
-TSymbol *TSymbolTableLevel::find(const TString &name) const
-{
-    tLevel::const_iterator it = level.find(name);
-    if (it == level.end())
-        return 0;
-    else
-        return (*it).second;
-}
-
-TSymbol *TSymbolTable::find(const TString &name,
-                            int shaderVersion,
-                            bool *builtIn,
-                            bool *sameScope) const
-{
-    int level = currentLevel();
-    TSymbol *symbol;
-
-    do
-    {
-        if (level == GLSL_BUILTINS)
-            level--;
-        if (level == ESSL3_1_BUILTINS && shaderVersion != 310)
-            level--;
-        if (level == ESSL3_BUILTINS && shaderVersion < 300)
-            level--;
-        if (level == ESSL1_BUILTINS && shaderVersion != 100)
-            level--;
-
-        symbol = table[level]->find(name);
-    } while (symbol == 0 && --level >= 0);
-
-    if (builtIn)
-        *builtIn = (level <= LAST_BUILTIN_LEVEL);
-    if (sameScope)
-        *sameScope = (level == currentLevel());
-
-    return symbol;
-}
-
-TSymbol *TSymbolTable::findGlobal(const TString &name) const
-{
-    ASSERT(table.size() > GLOBAL_LEVEL);
-    return table[GLOBAL_LEVEL]->find(name);
-}
-
-TSymbol *TSymbolTable::findBuiltIn(const TString &name, int shaderVersion) const
-{
-    return findBuiltIn(name, shaderVersion, false);
-}
-
-TSymbol *TSymbolTable::findBuiltIn(const TString &name,
-                                   int shaderVersion,
-                                   bool includeGLSLBuiltins) const
-{
-    for (int level = LAST_BUILTIN_LEVEL; level >= 0; level--)
-    {
-        if (level == GLSL_BUILTINS && !includeGLSLBuiltins)
-            level--;
-        if (level == ESSL3_1_BUILTINS && shaderVersion != 310)
-            level--;
-        if (level == ESSL3_BUILTINS && shaderVersion < 300)
-            level--;
-        if (level == ESSL1_BUILTINS && shaderVersion != 100)
-            level--;
-
-        TSymbol *symbol = table[level]->find(name);
-
-        if (symbol)
-            return symbol;
-    }
-
-    return nullptr;
-}
-
-TSymbolTable::~TSymbolTable()
-{
-    while (table.size() > 0)
-        pop();
-}
-
-bool IsGenType(const TType *type)
-{
-    if (type)
-    {
-        TBasicType basicType = type->getBasicType();
-        return basicType == EbtGenType || basicType == EbtGenIType || basicType == EbtGenUType ||
-               basicType == EbtGenBType;
-    }
-
-    return false;
-}
-
-bool IsVecType(const TType *type)
-{
-    if (type)
-    {
-        TBasicType basicType = type->getBasicType();
-        return basicType == EbtVec || basicType == EbtIVec || basicType == EbtUVec ||
-               basicType == EbtBVec;
-    }
-
-    return false;
-}
-
-const TType *SpecificType(const TType *type, int size)
-{
-    ASSERT(size >= 1 && size <= 4);
-
-    if (!type)
-    {
-        return nullptr;
-    }
-
-    ASSERT(!IsVecType(type));
-
-    switch (type->getBasicType())
-    {
-        case EbtGenType:
-            return TCache::getType(EbtFloat, type->getQualifier(),
-                                   static_cast<unsigned char>(size));
-        case EbtGenIType:
-            return TCache::getType(EbtInt, type->getQualifier(), static_cast<unsigned char>(size));
-        case EbtGenUType:
-            return TCache::getType(EbtUInt, type->getQualifier(), static_cast<unsigned char>(size));
-        case EbtGenBType:
-            return TCache::getType(EbtBool, type->getQualifier(), static_cast<unsigned char>(size));
-        default:
-            return type;
-    }
-}
-
-const TType *VectorType(const TType *type, int size)
-{
-    ASSERT(size >= 2 && size <= 4);
-
-    if (!type)
-    {
-        return nullptr;
-    }
-
-    ASSERT(!IsGenType(type));
-
-    switch (type->getBasicType())
-    {
-        case EbtVec:
-            return TCache::getType(EbtFloat, static_cast<unsigned char>(size));
-        case EbtIVec:
-            return TCache::getType(EbtInt, static_cast<unsigned char>(size));
-        case EbtUVec:
-            return TCache::getType(EbtUInt, static_cast<unsigned char>(size));
-        case EbtBVec:
-            return TCache::getType(EbtBool, static_cast<unsigned char>(size));
-        default:
-            return type;
-    }
-}
-
-TVariable *TSymbolTable::declareVariable(const TString *name, const TType &type)
-{
-    return insertVariable(currentLevel(), name, type);
-}
-
-TVariable *TSymbolTable::declareStructType(TStructure *str)
-{
-    return insertStructType(currentLevel(), str);
-}
-
-TInterfaceBlockName *TSymbolTable::declareInterfaceBlockName(const TString *name)
-{
-    TInterfaceBlockName *blockNameSymbol = new TInterfaceBlockName(this, name);
-    if (insert(currentLevel(), blockNameSymbol))
-    {
-        return blockNameSymbol;
-    }
-    return nullptr;
-}
-
-TInterfaceBlockName *TSymbolTable::insertInterfaceBlockNameExt(ESymbolLevel level,
-                                                               TExtension ext,
-                                                               const TString *name)
-{
-    TInterfaceBlockName *blockNameSymbol = new TInterfaceBlockName(this, name);
-    if (insert(level, ext, blockNameSymbol))
-    {
-        return blockNameSymbol;
-    }
-    return nullptr;
-}
-
-TVariable *TSymbolTable::insertVariable(ESymbolLevel level, const char *name, const TType &type)
-{
-    return insertVariable(level, NewPoolTString(name), type);
-}
-
-TVariable *TSymbolTable::insertVariable(ESymbolLevel level, const TString *name, const TType &type)
-{
-    TVariable *var = new TVariable(this, name, type);
-    if (insert(level, var))
-    {
-        // Do lazy initialization for struct types, so we allocate to the current scope.
-        if (var->getType().getBasicType() == EbtStruct)
-        {
-            var->getType().realize();
-        }
-        return var;
-    }
-    return nullptr;
-}
-
-TVariable *TSymbolTable::insertVariableExt(ESymbolLevel level,
-                                           TExtension ext,
-                                           const char *name,
-                                           const TType &type)
-{
-    TVariable *var = new TVariable(this, NewPoolTString(name), type);
-    if (insert(level, ext, var))
-    {
-        if (var->getType().getBasicType() == EbtStruct)
-        {
-            var->getType().realize();
-        }
-        return var;
-    }
-    return nullptr;
-}
-
-TVariable *TSymbolTable::insertStructType(ESymbolLevel level, TStructure *str)
-{
-    TVariable *var = new TVariable(this, &str->name(), TType(str), true);
-    if (insert(level, var))
-    {
-        var->getType().realize();
-        return var;
-    }
-    return nullptr;
-}
-
-void TSymbolTable::insertBuiltIn(ESymbolLevel level,
-                                 TOperator op,
-                                 TExtension ext,
-                                 const TType *rvalue,
-                                 const char *name,
-                                 const TType *ptype1,
-                                 const TType *ptype2,
-                                 const TType *ptype3,
-                                 const TType *ptype4,
-                                 const TType *ptype5)
-{
-    if (ptype1->getBasicType() == EbtGSampler2D)
-    {
-        insertUnmangledBuiltInName(name, level);
-        bool gvec4 = (rvalue->getBasicType() == EbtGVec4);
-        insertBuiltIn(level, gvec4 ? TCache::getType(EbtFloat, 4) : rvalue, name,
-                      TCache::getType(EbtSampler2D), ptype2, ptype3, ptype4, ptype5);
-        insertBuiltIn(level, gvec4 ? TCache::getType(EbtInt, 4) : rvalue, name,
-                      TCache::getType(EbtISampler2D), ptype2, ptype3, ptype4, ptype5);
-        insertBuiltIn(level, gvec4 ? TCache::getType(EbtUInt, 4) : rvalue, name,
-                      TCache::getType(EbtUSampler2D), ptype2, ptype3, ptype4, ptype5);
-    }
-    else if (ptype1->getBasicType() == EbtGSampler3D)
-    {
-        insertUnmangledBuiltInName(name, level);
-        bool gvec4 = (rvalue->getBasicType() == EbtGVec4);
-        insertBuiltIn(level, gvec4 ? TCache::getType(EbtFloat, 4) : rvalue, name,
-                      TCache::getType(EbtSampler3D), ptype2, ptype3, ptype4, ptype5);
-        insertBuiltIn(level, gvec4 ? TCache::getType(EbtInt, 4) : rvalue, name,
-                      TCache::getType(EbtISampler3D), ptype2, ptype3, ptype4, ptype5);
-        insertBuiltIn(level, gvec4 ? TCache::getType(EbtUInt, 4) : rvalue, name,
-                      TCache::getType(EbtUSampler3D), ptype2, ptype3, ptype4, ptype5);
-    }
-    else if (ptype1->getBasicType() == EbtGSamplerCube)
-    {
-        insertUnmangledBuiltInName(name, level);
-        bool gvec4 = (rvalue->getBasicType() == EbtGVec4);
-        insertBuiltIn(level, gvec4 ? TCache::getType(EbtFloat, 4) : rvalue, name,
-                      TCache::getType(EbtSamplerCube), ptype2, ptype3, ptype4, ptype5);
-        insertBuiltIn(level, gvec4 ? TCache::getType(EbtInt, 4) : rvalue, name,
-                      TCache::getType(EbtISamplerCube), ptype2, ptype3, ptype4, ptype5);
-        insertBuiltIn(level, gvec4 ? TCache::getType(EbtUInt, 4) : rvalue, name,
-                      TCache::getType(EbtUSamplerCube), ptype2, ptype3, ptype4, ptype5);
-    }
-    else if (ptype1->getBasicType() == EbtGSampler2DArray)
-    {
-        insertUnmangledBuiltInName(name, level);
-        bool gvec4 = (rvalue->getBasicType() == EbtGVec4);
-        insertBuiltIn(level, gvec4 ? TCache::getType(EbtFloat, 4) : rvalue, name,
-                      TCache::getType(EbtSampler2DArray), ptype2, ptype3, ptype4, ptype5);
-        insertBuiltIn(level, gvec4 ? TCache::getType(EbtInt, 4) : rvalue, name,
-                      TCache::getType(EbtISampler2DArray), ptype2, ptype3, ptype4, ptype5);
-        insertBuiltIn(level, gvec4 ? TCache::getType(EbtUInt, 4) : rvalue, name,
-                      TCache::getType(EbtUSampler2DArray), ptype2, ptype3, ptype4, ptype5);
-    }
-    else if (ptype1->getBasicType() == EbtGSampler2DMS)
-    {
-        insertUnmangledBuiltInName(name, level);
-        bool gvec4 = (rvalue->getBasicType() == EbtGVec4);
-        insertBuiltIn(level, gvec4 ? TCache::getType(EbtFloat, 4) : rvalue, name,
-                      TCache::getType(EbtSampler2DMS), ptype2, ptype3, ptype4, ptype5);
-        insertBuiltIn(level, gvec4 ? TCache::getType(EbtInt, 4) : rvalue, name,
-                      TCache::getType(EbtISampler2DMS), ptype2, ptype3, ptype4, ptype5);
-        insertBuiltIn(level, gvec4 ? TCache::getType(EbtUInt, 4) : rvalue, name,
-                      TCache::getType(EbtUSampler2DMS), ptype2, ptype3, ptype4, ptype5);
-    }
-    else if (IsGImage(ptype1->getBasicType()))
-    {
-        insertUnmangledBuiltInName(name, level);
-
-        const TType *floatType    = TCache::getType(EbtFloat, 4);
-        const TType *intType      = TCache::getType(EbtInt, 4);
-        const TType *unsignedType = TCache::getType(EbtUInt, 4);
-
-        const TType *floatImage =
-            TCache::getType(convertGImageToFloatImage(ptype1->getBasicType()));
-        const TType *intImage = TCache::getType(convertGImageToIntImage(ptype1->getBasicType()));
-        const TType *unsignedImage =
-            TCache::getType(convertGImageToUnsignedImage(ptype1->getBasicType()));
-
-        // GLSL ES 3.10, Revision 4, 8.12 Image Functions
-        if (rvalue->getBasicType() == EbtGVec4)
-        {
-            // imageLoad
-            insertBuiltIn(level, floatType, name, floatImage, ptype2, ptype3, ptype4, ptype5);
-            insertBuiltIn(level, intType, name, intImage, ptype2, ptype3, ptype4, ptype5);
-            insertBuiltIn(level, unsignedType, name, unsignedImage, ptype2, ptype3, ptype4, ptype5);
-        }
-        else if (rvalue->getBasicType() == EbtVoid)
-        {
-            // imageStore
-            insertBuiltIn(level, rvalue, name, floatImage, ptype2, floatType, ptype4, ptype5);
-            insertBuiltIn(level, rvalue, name, intImage, ptype2, intType, ptype4, ptype5);
-            insertBuiltIn(level, rvalue, name, unsignedImage, ptype2, unsignedType, ptype4, ptype5);
-        }
-        else
-        {
-            // imageSize
-            insertBuiltIn(level, rvalue, name, floatImage, ptype2, ptype3, ptype4, ptype5);
-            insertBuiltIn(level, rvalue, name, intImage, ptype2, ptype3, ptype4, ptype5);
-            insertBuiltIn(level, rvalue, name, unsignedImage, ptype2, ptype3, ptype4, ptype5);
-        }
-    }
-    else if (IsGenType(rvalue) || IsGenType(ptype1) || IsGenType(ptype2) || IsGenType(ptype3) ||
-             IsGenType(ptype4))
-    {
-        ASSERT(!ptype5);
-        insertUnmangledBuiltInName(name, level);
-        insertBuiltIn(level, op, ext, SpecificType(rvalue, 1), name, SpecificType(ptype1, 1),
-                      SpecificType(ptype2, 1), SpecificType(ptype3, 1), SpecificType(ptype4, 1));
-        insertBuiltIn(level, op, ext, SpecificType(rvalue, 2), name, SpecificType(ptype1, 2),
-                      SpecificType(ptype2, 2), SpecificType(ptype3, 2), SpecificType(ptype4, 2));
-        insertBuiltIn(level, op, ext, SpecificType(rvalue, 3), name, SpecificType(ptype1, 3),
-                      SpecificType(ptype2, 3), SpecificType(ptype3, 3), SpecificType(ptype4, 3));
-        insertBuiltIn(level, op, ext, SpecificType(rvalue, 4), name, SpecificType(ptype1, 4),
-                      SpecificType(ptype2, 4), SpecificType(ptype3, 4), SpecificType(ptype4, 4));
-    }
-    else if (IsVecType(rvalue) || IsVecType(ptype1) || IsVecType(ptype2) || IsVecType(ptype3))
-    {
-        ASSERT(!ptype4 && !ptype5);
-        insertUnmangledBuiltInName(name, level);
-        insertBuiltIn(level, op, ext, VectorType(rvalue, 2), name, VectorType(ptype1, 2),
-                      VectorType(ptype2, 2), VectorType(ptype3, 2));
-        insertBuiltIn(level, op, ext, VectorType(rvalue, 3), name, VectorType(ptype1, 3),
-                      VectorType(ptype2, 3), VectorType(ptype3, 3));
-        insertBuiltIn(level, op, ext, VectorType(rvalue, 4), name, VectorType(ptype1, 4),
-                      VectorType(ptype2, 4), VectorType(ptype3, 4));
-    }
-    else
-    {
-        TFunction *function = new TFunction(this, NewPoolTString(name), rvalue, op, ext);
-
-        function->addParameter(TConstParameter(ptype1));
-
-        if (ptype2)
-        {
-            function->addParameter(TConstParameter(ptype2));
-        }
-
-        if (ptype3)
-        {
-            function->addParameter(TConstParameter(ptype3));
-        }
-
-        if (ptype4)
-        {
-            function->addParameter(TConstParameter(ptype4));
-        }
-
-        if (ptype5)
-        {
-            function->addParameter(TConstParameter(ptype5));
-        }
-
-        ASSERT(hasUnmangledBuiltInAtLevel(name, level));
-        insert(level, function);
-    }
-}
-
-void TSymbolTable::insertBuiltInOp(ESymbolLevel level,
-                                   TOperator op,
-                                   const TType *rvalue,
-                                   const TType *ptype1,
-                                   const TType *ptype2,
-                                   const TType *ptype3,
-                                   const TType *ptype4,
-                                   const TType *ptype5)
-{
-    const char *name = GetOperatorString(op);
-    ASSERT(strlen(name) > 0);
-    insertUnmangledBuiltInName(name, level);
-    insertBuiltIn(level, op, TExtension::UNDEFINED, rvalue, name, ptype1, ptype2, ptype3, ptype4,
-                  ptype5);
-}
-
-void TSymbolTable::insertBuiltInOp(ESymbolLevel level,
-                                   TOperator op,
-                                   TExtension ext,
-                                   const TType *rvalue,
-                                   const TType *ptype1,
-                                   const TType *ptype2,
-                                   const TType *ptype3,
-                                   const TType *ptype4,
-                                   const TType *ptype5)
-{
-    const char *name = GetOperatorString(op);
-    insertUnmangledBuiltInName(name, level);
-    insertBuiltIn(level, op, ext, rvalue, name, ptype1, ptype2, ptype3, ptype4, ptype5);
-}
-
-void TSymbolTable::insertBuiltInFunctionNoParameters(ESymbolLevel level,
-                                                     TOperator op,
-                                                     const TType *rvalue,
-                                                     const char *name)
-{
-    insertUnmangledBuiltInName(name, level);
-    insert(level, new TFunction(this, NewPoolTString(name), rvalue, op));
-}
-
-void TSymbolTable::insertBuiltInFunctionNoParametersExt(ESymbolLevel level,
-                                                        TExtension ext,
-                                                        TOperator op,
-                                                        const TType *rvalue,
-                                                        const char *name)
-{
-    insertUnmangledBuiltInName(name, level);
-    insert(level, new TFunction(this, NewPoolTString(name), rvalue, op, ext));
-}
-
-TPrecision TSymbolTable::getDefaultPrecision(TBasicType type) const
-{
-    if (!SupportsPrecision(type))
-        return EbpUndefined;
-
-    // unsigned integers use the same precision as signed
-    TBasicType baseType = (type == EbtUInt) ? EbtInt : type;
-
-    int level = static_cast<int>(precisionStack.size()) - 1;
-    assert(level >= 0);  // Just to be safe. Should not happen.
-    // If we dont find anything we return this. Some types don't have predefined default precision.
-    TPrecision prec = EbpUndefined;
-    while (level >= 0)
-    {
-        PrecisionStackLevel::iterator it = precisionStack[level]->find(baseType);
-        if (it != precisionStack[level]->end())
-        {
-            prec = (*it).second;
-            break;
-        }
-        level--;
-    }
-    return prec;
-}
-
-void TSymbolTable::insertUnmangledBuiltInName(const char *name, ESymbolLevel level)
-{
-    ASSERT(level >= 0 && level < static_cast<ESymbolLevel>(table.size()));
-    table[level]->insertUnmangledBuiltInName(std::string(name));
-}
-
-bool TSymbolTable::hasUnmangledBuiltInAtLevel(const char *name, ESymbolLevel level)
-{
-    ASSERT(level >= 0 && level < static_cast<ESymbolLevel>(table.size()));
-    return table[level]->hasUnmangledBuiltIn(std::string(name));
-}
-
-bool TSymbolTable::hasUnmangledBuiltInForShaderVersion(const char *name, int shaderVersion)
-{
-    ASSERT(static_cast<ESymbolLevel>(table.size()) > LAST_BUILTIN_LEVEL);
-
-    for (int level = LAST_BUILTIN_LEVEL; level >= 0; --level)
-    {
-        if (level == ESSL3_1_BUILTINS && shaderVersion != 310)
-        {
-            --level;
-        }
-        if (level == ESSL3_BUILTINS && shaderVersion < 300)
-        {
-            --level;
-        }
-        if (level == ESSL1_BUILTINS && shaderVersion != 100)
-        {
-            --level;
-        }
-
-        if (table[level]->hasUnmangledBuiltIn(name))
-        {
-            return true;
-        }
-    }
-    return false;
-}
-
-}  // namespace sh