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