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//
// Copyright (c) 2002-2014 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.
//
#if defined(_MSC_VER)
#pragma warning(disable: 4718)
#endif
#include "compiler/translator/Types.h"
#include <algorithm>
#include <climits>
TType::TType(const TPublicType &p)
: type(p.type), precision(p.precision), qualifier(p.qualifier), layoutQualifier(p.layoutQualifier),
primarySize(p.primarySize), secondarySize(p.secondarySize), array(p.array), arraySize(p.arraySize),
interfaceBlock(0), structure(0)
{
if (p.userDef)
structure = p.userDef->getStruct();
}
bool TStructure::equals(const TStructure &other) const
{
return (uniqueId() == other.uniqueId());
}
//
// Recursively generate mangled names.
//
TString TType::buildMangledName() const
{
TString mangledName;
if (isMatrix())
mangledName += 'm';
else if (isVector())
mangledName += 'v';
switch (type)
{
case EbtFloat:
mangledName += 'f';
break;
case EbtInt:
mangledName += 'i';
break;
case EbtUInt:
mangledName += 'u';
break;
case EbtBool:
mangledName += 'b';
break;
case EbtSampler2D:
mangledName += "s2";
break;
case EbtSampler3D:
mangledName += "s3";
break;
case EbtSamplerCube:
mangledName += "sC";
break;
case EbtSampler2DArray:
mangledName += "s2a";
break;
case EbtSamplerExternalOES:
mangledName += "sext";
break;
case EbtSampler2DRect:
mangledName += "s2r";
break;
case EbtISampler2D:
mangledName += "is2";
break;
case EbtISampler3D:
mangledName += "is3";
break;
case EbtISamplerCube:
mangledName += "isC";
break;
case EbtISampler2DArray:
mangledName += "is2a";
break;
case EbtUSampler2D:
mangledName += "us2";
break;
case EbtUSampler3D:
mangledName += "us3";
break;
case EbtUSamplerCube:
mangledName += "usC";
break;
case EbtUSampler2DArray:
mangledName += "us2a";
break;
case EbtSampler2DShadow:
mangledName += "s2s";
break;
case EbtSamplerCubeShadow:
mangledName += "sCs";
break;
case EbtSampler2DArrayShadow:
mangledName += "s2as";
break;
case EbtStruct:
mangledName += structure->mangledName();
break;
case EbtInterfaceBlock:
mangledName += interfaceBlock->mangledName();
break;
default:
UNREACHABLE();
}
if (isMatrix())
{
mangledName += static_cast<char>('0' + getCols());
mangledName += static_cast<char>('x');
mangledName += static_cast<char>('0' + getRows());
}
else
{
mangledName += static_cast<char>('0' + getNominalSize());
}
if (isArray())
{
char buf[20];
snprintf(buf, sizeof(buf), "%d", arraySize);
mangledName += '[';
mangledName += buf;
mangledName += ']';
}
return mangledName;
}
size_t TType::getObjectSize() const
{
size_t totalSize;
if (getBasicType() == EbtStruct)
totalSize = structure->objectSize();
else
totalSize = primarySize * secondarySize;
if (isArray())
{
size_t arraySize = getArraySize();
if (arraySize > INT_MAX / totalSize)
totalSize = INT_MAX;
else
totalSize *= arraySize;
}
return totalSize;
}
bool TStructure::containsArrays() const
{
for (size_t i = 0; i < mFields->size(); ++i)
{
const TType *fieldType = (*mFields)[i]->type();
if (fieldType->isArray() || fieldType->isStructureContainingArrays())
return true;
}
return false;
}
TString TFieldListCollection::buildMangledName() const
{
TString mangledName(mangledNamePrefix());
mangledName += *mName;
for (size_t i = 0; i < mFields->size(); ++i)
{
mangledName += '-';
mangledName += (*mFields)[i]->type()->getMangledName();
}
return mangledName;
}
size_t TFieldListCollection::calculateObjectSize() const
{
size_t size = 0;
for (size_t i = 0; i < mFields->size(); ++i)
{
size_t fieldSize = (*mFields)[i]->type()->getObjectSize();
if (fieldSize > INT_MAX - size)
size = INT_MAX;
else
size += fieldSize;
}
return size;
}
int TStructure::calculateDeepestNesting() const
{
int maxNesting = 0;
for (size_t i = 0; i < mFields->size(); ++i)
maxNesting = std::max(maxNesting, (*mFields)[i]->type()->getDeepestStructNesting());
return 1 + maxNesting;
}
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