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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 GrGLVertexBuffer_DEFINED
      9 #define GrGLVertexBuffer_DEFINED
     10 
     11 #include "GrVertexBuffer.h"
     12 #include "GrGLBufferImpl.h"
     13 #include "gl/GrGLInterface.h"
     14 
     15 class GrGpuGL;
     16 
     17 class GrGLVertexBuffer : public GrVertexBuffer {
     18 
     19 public:
     20     typedef GrGLBufferImpl::Desc Desc;
     21 
     22     GrGLVertexBuffer(GrGpuGL* gpu, const Desc& desc);
     23     virtual ~GrGLVertexBuffer() { 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->isValid()) {
     30             fImpl.bind(this->getGpuGL());
     31         }
     32     }
     33 
     34     // overrides of GrVertexBuffer
     35     virtual void* lock();
     36     virtual void* lockPtr() const;
     37     virtual void unlock();
     38     virtual bool isLocked() const;
     39     virtual bool updateData(const void* src, size_t srcSizeInBytes);
     40 
     41 protected:
     42     // overrides of GrResource
     43     virtual void onAbandon() SK_OVERRIDE;
     44     virtual void onRelease() SK_OVERRIDE;
     45 
     46 private:
     47     GrGpuGL* getGpuGL() const {
     48         GrAssert(this->isValid());
     49         return (GrGpuGL*)(this->getGpu());
     50     }
     51 
     52     GrGLBufferImpl fImpl;
     53 
     54     typedef GrVertexBuffer INHERITED;
     55 };
     56 
     57 #endif
     58