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 GrGLStencilAttachment_DEFINED 10 #define GrGLStencilAttachment_DEFINED 11 12 #include "gl/GrGLInterface.h" 13 #include "GrStencilAttachment.h" 14 15 class GrGLStencilAttachment : public GrStencilAttachment { 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 struct IDDesc { 27 IDDesc() : fRenderbufferID(0), fLifeCycle(kCached_LifeCycle) {} 28 GrGLuint fRenderbufferID; 29 GrGpuResource::LifeCycle fLifeCycle; 30 }; 31 32 GrGLStencilAttachment(GrGpu* gpu, 33 const IDDesc& idDesc, 34 int width, int height, 35 int sampleCnt, 36 const Format& format) 37 : GrStencilAttachment(gpu, idDesc.fLifeCycle, width, height, format.fStencilBits, sampleCnt) 38 , fFormat(format) 39 , fRenderbufferID(idDesc.fRenderbufferID) { 40 this->registerWithCache(); 41 } 42 43 GrGLuint renderbufferID() const { 44 return fRenderbufferID; 45 } 46 47 const Format& format() const { return fFormat; } 48 49 protected: 50 // overrides of GrResource 51 void onRelease() override; 52 void onAbandon() override; 53 54 private: 55 size_t onGpuMemorySize() const override; 56 57 Format fFormat; 58 // may be zero for external SBs associated with external RTs 59 // (we don't require the client to give us the id, just tell 60 // us how many bits of stencil there are). 61 GrGLuint fRenderbufferID; 62 63 typedef GrStencilAttachment INHERITED; 64 }; 65 66 #endif 67
