1 /* 2 * Copyright 2011 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 9 #ifndef GrGLStencilBuffer_DEFINED 10 #define GrGLStencilBuffer_DEFINED 11 12 #include "gl/GrGLInterface.h" 13 #include "GrStencilBuffer.h" 14 15 class GrGLStencilBuffer : public GrStencilBuffer { 16 public: 17 static const GrGLenum kUnknownInternalFormat = ~0U; 18 static const GrGLuint kUnknownBitCount = ~0U; 19 struct Format { 20 GrGLenum fInternalFormat; 21 GrGLuint fStencilBits; 22 GrGLuint fTotalBits; 23 bool fPacked; 24 }; 25 26 GrGLStencilBuffer(GrGpu* gpu, 27 bool isWrapped, 28 GrGLint rbid, 29 int width, int height, 30 int sampleCnt, 31 const Format& format) 32 : GrStencilBuffer(gpu, isWrapped, width, height, format.fStencilBits, sampleCnt) 33 , fFormat(format) 34 , fRenderbufferID(rbid) { 35 } 36 37 virtual ~GrGLStencilBuffer(); 38 39 virtual size_t sizeInBytes() const SK_OVERRIDE; 40 41 GrGLuint renderbufferID() const { 42 return fRenderbufferID; 43 } 44 45 const Format& format() const { return fFormat; } 46 47 protected: 48 // overrides of GrResource 49 virtual void onRelease() SK_OVERRIDE; 50 virtual void onAbandon() SK_OVERRIDE; 51 52 private: 53 Format fFormat; 54 // may be zero for external SBs associated with external RTs 55 // (we don't require the client to give us the id, just tell 56 // us how many bits of stencil there are). 57 GrGLuint fRenderbufferID; 58 59 typedef GrStencilBuffer INHERITED; 60 }; 61 62 #endif 63
