michael@0: 
michael@0: /*
michael@0:  * Copyright 2012 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: 
michael@0: #ifndef GrTextureObj_DEFINED
michael@0: #define GrTextureObj_DEFINED
michael@0: 
michael@0: #include "GrFBBindableObj.h"
michael@0: 
michael@0: class GrTextureUnitObj;
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: class GrTextureObj : public GrFBBindableObj {
michael@0:     GR_DEFINE_CREATOR(GrTextureObj);
michael@0: 
michael@0: public:
michael@0:     GrTextureObj()
michael@0:         : GrFBBindableObj() {
michael@0:     }
michael@0: 
michael@0:     virtual ~GrTextureObj() {
michael@0:         GrAlwaysAssert(0 == fTextureUnitReferees.count());
michael@0:     }
michael@0: 
michael@0:     void setBound(GrTextureUnitObj *referee) {
michael@0:         fTextureUnitReferees.append(1, &referee);
michael@0:     }
michael@0: 
michael@0:     void resetBound(GrTextureUnitObj *referee) {
michael@0:         int index = fTextureUnitReferees.find(referee);
michael@0:         GrAlwaysAssert(0 <= index);
michael@0:         fTextureUnitReferees.removeShuffle(index);
michael@0:     }
michael@0:     bool getBound(GrTextureUnitObj *referee) const {
michael@0:         int index = fTextureUnitReferees.find(referee);
michael@0:         return 0 <= index;
michael@0:     }
michael@0:     bool getBound() const {
michael@0:         return 0 != fTextureUnitReferees.count();
michael@0:     }
michael@0: 
michael@0:     virtual void deleteAction() SK_OVERRIDE;
michael@0: 
michael@0: protected:
michael@0: 
michael@0: private:
michael@0:     // texture units that bind this texture (via "glBindTexture")
michael@0:     SkTDArray<GrTextureUnitObj *> fTextureUnitReferees;
michael@0: 
michael@0:     typedef GrFBBindableObj INHERITED;
michael@0: };
michael@0: 
michael@0: #endif // GrTextureObj_DEFINED