diff options
Diffstat (limited to 'src/3rdparty/angle/src/compiler/translator/MapLongVariableNames.cpp')
-rw-r--r-- | src/3rdparty/angle/src/compiler/translator/MapLongVariableNames.cpp | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/MapLongVariableNames.cpp b/src/3rdparty/angle/src/compiler/translator/MapLongVariableNames.cpp new file mode 100644 index 0000000000..ef629c26b1 --- /dev/null +++ b/src/3rdparty/angle/src/compiler/translator/MapLongVariableNames.cpp @@ -0,0 +1,115 @@ +// +// Copyright (c) 2002-2012 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. +// + +#include "compiler/translator/MapLongVariableNames.h" + +namespace { + +TString mapLongName(size_t id, const TString& name, bool isGlobal) +{ + ASSERT(name.size() > MAX_SHORTENED_IDENTIFIER_SIZE); + TStringStream stream; + stream << "webgl_"; + if (isGlobal) + stream << "g"; + stream << id; + if (name[0] != '_') + stream << "_"; + stream << name.substr(0, MAX_SHORTENED_IDENTIFIER_SIZE - stream.str().size()); + return stream.str(); +} + +LongNameMap* gLongNameMapInstance = NULL; + +} // anonymous namespace + +LongNameMap::LongNameMap() + : refCount(0) +{ +} + +LongNameMap::~LongNameMap() +{ +} + +// static +LongNameMap* LongNameMap::GetInstance() +{ + if (gLongNameMapInstance == NULL) + gLongNameMapInstance = new LongNameMap; + gLongNameMapInstance->refCount++; + return gLongNameMapInstance; +} + +void LongNameMap::Release() +{ + ASSERT(gLongNameMapInstance == this); + ASSERT(refCount > 0); + refCount--; + if (refCount == 0) { + delete gLongNameMapInstance; + gLongNameMapInstance = NULL; + } +} + +const char* LongNameMap::Find(const char* originalName) const +{ + std::map<std::string, std::string>::const_iterator it = mLongNameMap.find( + originalName); + if (it != mLongNameMap.end()) + return (*it).second.c_str(); + return NULL; +} + +void LongNameMap::Insert(const char* originalName, const char* mappedName) +{ + mLongNameMap.insert(std::map<std::string, std::string>::value_type( + originalName, mappedName)); +} + +size_t LongNameMap::Size() const +{ + return mLongNameMap.size(); +} + +MapLongVariableNames::MapLongVariableNames(LongNameMap* globalMap) +{ + ASSERT(globalMap); + mGlobalMap = globalMap; +} + +void MapLongVariableNames::visitSymbol(TIntermSymbol* symbol) +{ + ASSERT(symbol != NULL); + if (symbol->getSymbol().size() > MAX_SHORTENED_IDENTIFIER_SIZE) { + switch (symbol->getQualifier()) { + case EvqVaryingIn: + case EvqVaryingOut: + case EvqInvariantVaryingIn: + case EvqInvariantVaryingOut: + case EvqUniform: + symbol->setSymbol( + mapGlobalLongName(symbol->getSymbol())); + break; + default: + symbol->setSymbol( + mapLongName(symbol->getId(), symbol->getSymbol(), false)); + break; + }; + } +} + +TString MapLongVariableNames::mapGlobalLongName(const TString& name) +{ + ASSERT(mGlobalMap); + const char* mappedName = mGlobalMap->Find(name.c_str()); + if (mappedName != NULL) + return mappedName; + size_t id = mGlobalMap->Size(); + TString rt = mapLongName(id, name, true); + mGlobalMap->Insert(name.c_str(), rt.c_str()); + return rt; +} |