1 2 /* 3 * Copyright 2010 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 9 10 11 #ifndef GrKey_DEFINED 12 #define GrKey_DEFINED 13 14 #include "GrRefCnt.h" 15 16 class GrKey : public GrRefCnt { 17 public: 18 typedef intptr_t Hash; 19 20 explicit GrKey(Hash hash) : fHash(hash) {} 21 22 intptr_t getHash() const { return fHash; } 23 24 bool operator<(const GrKey& rh) const { 25 return fHash < rh.fHash || (fHash == rh.fHash && this->lt(rh)); 26 } 27 bool operator==(const GrKey& rh) const { 28 return fHash == rh.fHash && this->eq(rh); 29 } 30 31 protected: 32 virtual bool lt(const GrKey& rh) const = 0; 33 virtual bool eq(const GrKey& rh) const = 0; 34 35 private: 36 const Hash fHash; 37 }; 38 39 #endif 40 41
