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      1 
      2 /*
      3  * Copyright 2012 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 #ifndef GrTextureObj_DEFINED
     10 #define GrTextureObj_DEFINED
     11 
     12 #include "GrFBBindableObj.h"
     13 
     14 class GrTextureUnitObj;
     15 
     16 ////////////////////////////////////////////////////////////////////////////////
     17 class GrTextureObj : public GrFBBindableObj {
     18     GR_DEFINE_CREATOR(GrTextureObj)
     19 
     20 public:
     21     GrTextureObj()
     22         : GrFBBindableObj() {
     23     }
     24 
     25     ~GrTextureObj() override {
     26         GrAlwaysAssert(0 == fTextureUnitReferees.count());
     27     }
     28 
     29     void setBound(GrTextureUnitObj *referee) {
     30         fTextureUnitReferees.append(1, &referee);
     31     }
     32 
     33     void resetBound(GrTextureUnitObj *referee) {
     34         int index = fTextureUnitReferees.find(referee);
     35         GrAlwaysAssert(0 <= index);
     36         fTextureUnitReferees.removeShuffle(index);
     37     }
     38     bool getBound(GrTextureUnitObj *referee) const {
     39         int index = fTextureUnitReferees.find(referee);
     40         return 0 <= index;
     41     }
     42     bool getBound() const {
     43         return 0 != fTextureUnitReferees.count();
     44     }
     45 
     46     void deleteAction() override;
     47 
     48 protected:
     49 
     50 private:
     51     // texture units that bind this texture (via "glBindTexture")
     52     SkTDArray<GrTextureUnitObj *> fTextureUnitReferees;
     53 
     54     typedef GrFBBindableObj INHERITED;
     55 };
     56 
     57 #endif // GrTextureObj_DEFINED
     58