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) {} 28 GrGLuint fRenderbufferID; 29 }; 30 31 GrGLStencilAttachment(GrGpu* gpu, 32 const IDDesc& idDesc, 33 int width, int height, 34 int sampleCnt, 35 const Format& format) 36 : GrStencilAttachment(gpu, width, height, format.fStencilBits, sampleCnt) 37 , fFormat(format) 38 , fRenderbufferID(idDesc.fRenderbufferID) { 39 this->registerWithCache(SkBudgeted::kYes); 40 } 41 42 GrGLuint renderbufferID() const { 43 return fRenderbufferID; 44 } 45 46 const Format& format() const { return fFormat; } 47 48 protected: 49 // overrides of GrResource 50 void onRelease() override; 51 void onAbandon() override; 52 void setMemoryBacking(SkTraceMemoryDump* traceMemoryDump, 53 const SkString& dumpName) const override; 54 55 private: 56 size_t onGpuMemorySize() const override; 57 58 Format fFormat; 59 // may be zero for external SBs associated with external RTs 60 // (we don't require the client to give us the id, just tell 61 // us how many bits of stencil there are). 62 GrGLuint fRenderbufferID; 63 64 typedef GrStencilAttachment INHERITED; 65 }; 66 67 #endif 68
