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 GrFBBindableObj_DEFINED
michael@0: #define GrFBBindableObj_DEFINED
michael@0: 
michael@0: #include "SkTDArray.h"
michael@0: #include "GrFakeRefObj.h"
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // A common base class for render buffers and textures
michael@0: class GrFBBindableObj : public GrFakeRefObj {
michael@0: 
michael@0: public:
michael@0:     GrFBBindableObj()
michael@0:         : GrFakeRefObj() {
michael@0:     }
michael@0: 
michael@0:     virtual ~GrFBBindableObj() {
michael@0:         GrAlwaysAssert(0 == fColorReferees.count());
michael@0:         GrAlwaysAssert(0 == fDepthReferees.count());
michael@0:         GrAlwaysAssert(0 == fStencilReferees.count());
michael@0:     }
michael@0: 
michael@0:     void setColorBound(GrFakeRefObj *referee) {
michael@0:         fColorReferees.append(1, &referee);
michael@0:     }
michael@0:     void resetColorBound(GrFakeRefObj *referee) {
michael@0:         int index = fColorReferees.find(referee);
michael@0:         GrAlwaysAssert(0 <= index);
michael@0:         fColorReferees.removeShuffle(index);
michael@0:     }
michael@0:     bool getColorBound(GrFakeRefObj *referee) const {
michael@0:         int index = fColorReferees.find(referee);
michael@0:         return 0 <= index;
michael@0:     }
michael@0:     bool getColorBound() const {
michael@0:         return 0 != fColorReferees.count();
michael@0:     }
michael@0: 
michael@0:     void setDepthBound(GrFakeRefObj *referee) {
michael@0:         fDepthReferees.append(1, &referee);
michael@0:     }
michael@0:     void resetDepthBound(GrFakeRefObj *referee) {
michael@0:         int index = fDepthReferees.find(referee);
michael@0:         GrAlwaysAssert(0 <= index);
michael@0:         fDepthReferees.removeShuffle(index);
michael@0:     }
michael@0:     bool getDepthBound(GrFakeRefObj *referee) const {
michael@0:         int index = fDepthReferees.find(referee);
michael@0:         return 0 <= index;
michael@0:     }
michael@0:     bool getDepthBound() const {
michael@0:         return 0 != fDepthReferees.count();
michael@0:     }
michael@0: 
michael@0:     void setStencilBound(GrFakeRefObj *referee) {
michael@0:         fStencilReferees.append(1, &referee);
michael@0:     }
michael@0:     void resetStencilBound(GrFakeRefObj *referee) {
michael@0:         int index = fStencilReferees.find(referee);
michael@0:         GrAlwaysAssert(0 <= index);
michael@0:         fStencilReferees.removeShuffle(index);
michael@0:     }
michael@0:     bool getStencilBound(GrFakeRefObj *referee) const {
michael@0:         int index = fStencilReferees.find(referee);
michael@0:         return 0 <= index;
michael@0:     }
michael@0:     bool getStencilBound() const {
michael@0:         return 0 != fStencilReferees.count();
michael@0:     }
michael@0: 
michael@0: 
michael@0: protected:
michael@0: private:
michael@0:     SkTDArray<GrFakeRefObj *> fColorReferees;   // frame buffers that use this as a color buffer (via "glFramebufferRenderbuffer" or "glFramebufferTexture2D")
michael@0:     SkTDArray<GrFakeRefObj *> fDepthReferees;   // frame buffers that use this as a depth buffer (via "glFramebufferRenderbuffer" or "glFramebufferTexture2D")
michael@0:     SkTDArray<GrFakeRefObj *> fStencilReferees; // frame buffers that use this as a stencil buffer (via "glFramebufferRenderbuffer" or "glFramebufferTexture2D")
michael@0: 
michael@0:     typedef GrFakeRefObj INHERITED;
michael@0: };
michael@0: 
michael@0: #endif // GrFBBindableObj_DEFINED