michael@0: /*
michael@0:  * Copyright 2011 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: 
michael@0: #ifndef GrGLStencilBuffer_DEFINED
michael@0: #define GrGLStencilBuffer_DEFINED
michael@0: 
michael@0: #include "gl/GrGLInterface.h"
michael@0: #include "GrStencilBuffer.h"
michael@0: 
michael@0: class GrGLStencilBuffer : public GrStencilBuffer {
michael@0: public:
michael@0:     static const GrGLenum kUnknownInternalFormat = ~0U;
michael@0:     static const GrGLuint kUnknownBitCount = ~0U;
michael@0:     struct Format {
michael@0:         GrGLenum  fInternalFormat;
michael@0:         GrGLuint  fStencilBits;
michael@0:         GrGLuint  fTotalBits;
michael@0:         bool      fPacked;
michael@0:     };
michael@0: 
michael@0:     GrGLStencilBuffer(GrGpu* gpu,
michael@0:                       bool isWrapped,
michael@0:                       GrGLint rbid,
michael@0:                       int width, int height,
michael@0:                       int sampleCnt,
michael@0:                       const Format& format)
michael@0:         : GrStencilBuffer(gpu, isWrapped, width, height, format.fStencilBits, sampleCnt)
michael@0:         , fFormat(format)
michael@0:         , fRenderbufferID(rbid) {
michael@0:     }
michael@0: 
michael@0:     virtual ~GrGLStencilBuffer();
michael@0: 
michael@0:     virtual size_t sizeInBytes() const SK_OVERRIDE;
michael@0: 
michael@0:     GrGLuint renderbufferID() const {
michael@0:         return fRenderbufferID;
michael@0:     }
michael@0: 
michael@0:     const Format& format() const { return fFormat; }
michael@0: 
michael@0: protected:
michael@0:     // overrides of GrResource
michael@0:     virtual void onRelease() SK_OVERRIDE;
michael@0:     virtual void onAbandon() SK_OVERRIDE;
michael@0: 
michael@0: private:
michael@0:     Format fFormat;
michael@0:     // may be zero for external SBs associated with external RTs
michael@0:     // (we don't require the client to give us the id, just tell
michael@0:     // us how many bits of stencil there are).
michael@0:     GrGLuint fRenderbufferID;
michael@0: 
michael@0:     typedef GrStencilBuffer INHERITED;
michael@0: };
michael@0: 
michael@0: #endif