skia2/include/gpu/GrKey.h
reed@google.com fa35e3ddcc plumb SkInstCnt to all subclasses of GrRefCnt
git-svn-id: http://skia.googlecode.com/svn/trunk@4353 2bbb7eff-a529-9590-31e7-b0007b416f81
2012-06-26 20:16:17 +00:00

45 lines
822 B
C++

/*
* Copyright 2010 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrKey_DEFINED
#define GrKey_DEFINED
#include "GrRefCnt.h"
class GrKey : public GrRefCnt {
public:
SK_DECLARE_INST_COUNT(GrKey)
typedef intptr_t Hash;
explicit GrKey(Hash hash) : fHash(hash) {}
intptr_t getHash() const { return fHash; }
bool operator<(const GrKey& rh) const {
return fHash < rh.fHash || (fHash == rh.fHash && this->lt(rh));
}
bool operator==(const GrKey& rh) const {
return fHash == rh.fHash && this->eq(rh);
}
protected:
virtual bool lt(const GrKey& rh) const = 0;
virtual bool eq(const GrKey& rh) const = 0;
private:
const Hash fHash;
typedef GrRefCnt INHERITED;
};
#endif