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 GrBufferObj_DEFINED
michael@0: #define GrBufferObj_DEFINED
michael@0: 
michael@0: #include "GrFakeRefObj.h"
michael@0: #include "../GrGLDefines.h"
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: class GrBufferObj : public GrFakeRefObj {
michael@0:     GR_DEFINE_CREATOR(GrBufferObj);
michael@0: 
michael@0: public:
michael@0:     GrBufferObj()
michael@0:         : GrFakeRefObj()
michael@0:         , fDataPtr(NULL)
michael@0:         , fMapped(false)
michael@0:         , fBound(false)
michael@0:         , fSize(0)
michael@0:         , fUsage(GR_GL_STATIC_DRAW) {
michael@0:     }
michael@0:     virtual ~GrBufferObj() {
michael@0:         delete[] fDataPtr;
michael@0:     }
michael@0: 
michael@0:     void access() {
michael@0:         // cannot access the buffer if it is currently mapped
michael@0:         GrAlwaysAssert(!fMapped);
michael@0:     }
michael@0: 
michael@0:     void setMapped()             { fMapped = true; }
michael@0:     void resetMapped()           { fMapped = false; }
michael@0:     bool getMapped() const       { return fMapped; }
michael@0: 
michael@0:     void setBound()              { fBound = true; }
michael@0:     void resetBound()            { fBound = false; }
michael@0:     bool getBound() const        { return fBound; }
michael@0: 
michael@0:     void allocate(GrGLsizeiptr size, const GrGLchar *dataPtr);
michael@0:     GrGLsizeiptr getSize() const { return fSize; }
michael@0:     GrGLchar *getDataPtr()       { return fDataPtr; }
michael@0: 
michael@0:     void setUsage(GrGLint usage) { fUsage = usage; }
michael@0:     GrGLint getUsage() const     { return fUsage; }
michael@0: 
michael@0:     virtual void deleteAction() SK_OVERRIDE;
michael@0: 
michael@0: protected:
michael@0: private:
michael@0: 
michael@0:     GrGLchar*    fDataPtr;
michael@0:     bool         fMapped;       // is the buffer object mapped via "glMapBuffer"?
michael@0:     bool         fBound;        // is the buffer object bound via "glBindBuffer"?
michael@0:     GrGLsizeiptr fSize;         // size in bytes
michael@0:     GrGLint      fUsage;        // one of: GL_STREAM_DRAW,
michael@0:                                 //         GL_STATIC_DRAW,
michael@0:                                 //         GL_DYNAMIC_DRAW
michael@0: 
michael@0:     typedef GrFakeRefObj INHERITED;
michael@0: };
michael@0: 
michael@0: #endif // GrBufferObj_DEFINED