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      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 #ifndef GrGLIndexBuffer_DEFINED
      9 #define GrGLIndexBuffer_DEFINED
     10 
     11 #include "GrIndexBuffer.h"
     12 #include "GrGLBufferImpl.h"
     13 #include "gl/GrGLInterface.h"
     14 
     15 class GrGpuGL;
     16 
     17 class GrGLIndexBuffer : public GrIndexBuffer {
     18 
     19 public:
     20     typedef GrGLBufferImpl::Desc Desc;
     21 
     22     GrGLIndexBuffer(GrGpuGL* gpu, const Desc& desc);
     23     virtual ~GrGLIndexBuffer() { this->release(); }
     24 
     25     GrGLuint bufferID() const { return fImpl.bufferID(); }
     26     size_t baseOffset() const { return fImpl.baseOffset(); }
     27 
     28     void bind() const {
     29         if (!this->wasDestroyed()) {
     30             fImpl.bind(this->getGpuGL());
     31         }
     32     }
     33 
     34 protected:
     35     virtual void onAbandon() SK_OVERRIDE;
     36     virtual void onRelease() SK_OVERRIDE;
     37 
     38 private:
     39     virtual void* onMap() SK_OVERRIDE;
     40     virtual void onUnmap() SK_OVERRIDE;
     41     virtual bool onUpdateData(const void* src, size_t srcSizeInBytes) SK_OVERRIDE;
     42 
     43     GrGpuGL* getGpuGL() const {
     44         SkASSERT(!this->wasDestroyed());
     45         return (GrGpuGL*)(this->getGpu());
     46     }
     47 
     48     GrGLBufferImpl fImpl;
     49 
     50     typedef GrIndexBuffer INHERITED;
     51 };
     52 
     53 #endif
     54