1 2/* 3 * Copyright 2010 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 9 10 11#ifndef GrIndexBuffer_DEFINED 12#define GrIndexBuffer_DEFINED 13 14#include "GrGeometryBuffer.h" 15 16class GrIndexBuffer : public GrGeometryBuffer { 17public: 18 /** 19 * Retrieves the maximum number of quads that could be rendered 20 * from the index buffer (using kTriangles_GrPrimitiveType). 21 * @return the maximum number of quads using full size of index buffer. 22 */ 23 int maxQuads() const { 24 return static_cast<int>(this->gpuMemorySize() / (sizeof(uint16_t) * 6)); 25 } 26protected: 27 GrIndexBuffer(GrGpu* gpu, bool isWrapped, size_t gpuMemorySize, bool dynamic, bool cpuBacked) 28 : INHERITED(gpu, isWrapped, gpuMemorySize, dynamic, cpuBacked) {} 29private: 30 typedef GrGeometryBuffer INHERITED; 31}; 32 33#endif 34