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//
// Copyright (c) 2015 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.
//
// Cache.h: Implements a cache for various commonly created objects.
#ifndef COMPILER_TRANSLATOR_CACHE_H_
#define COMPILER_TRANSLATOR_CACHE_H_
#include <stdint.h>
#include <string.h>
#include <map>
#include "compiler/translator/Types.h"
#include "compiler/translator/PoolAlloc.h"
class TCache
{
public:
static void initialize();
static void destroy();
static const TType *getType(TBasicType basicType,
TPrecision precision)
{
return getType(basicType, precision, EvqTemporary,
1, 1);
}
static const TType *getType(TBasicType basicType,
unsigned char primarySize = 1,
unsigned char secondarySize = 1)
{
return getType(basicType, EbpUndefined, EvqGlobal,
primarySize, secondarySize);
}
static const TType *getType(TBasicType basicType,
TQualifier qualifier,
unsigned char primarySize = 1,
unsigned char secondarySize = 1)
{
return getType(basicType, EbpUndefined, qualifier,
primarySize, secondarySize);
}
static const TType *getType(TBasicType basicType,
TPrecision precision,
TQualifier qualifier,
unsigned char primarySize,
unsigned char secondarySize);
private:
TCache()
{
}
union TypeKey
{
TypeKey(TBasicType basicType,
TPrecision precision,
TQualifier qualifier,
unsigned char primarySize,
unsigned char secondarySize);
typedef uint8_t EnumComponentType;
struct
{
EnumComponentType basicType;
EnumComponentType precision;
EnumComponentType qualifier;
unsigned char primarySize;
unsigned char secondarySize;
} components;
uint64_t value;
bool operator < (const TypeKey &other) const
{
return value < other.value;
}
};
typedef std::map<TypeKey, const TType*> TypeMap;
TypeMap mTypes;
TPoolAllocator mAllocator;
static TCache *sCache;
};
#endif // COMPILER_TRANSLATOR_CACHE_H_
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