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 16 class GrIndexBuffer : public GrGeometryBuffer { 17 public: 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 } 26 protected: 27 GrIndexBuffer(GrGpu* gpu, size_t gpuMemorySize, bool dynamic, bool cpuBacked) 28 : INHERITED(gpu, gpuMemorySize, dynamic, cpuBacked) {} 29 private: 30 typedef GrGeometryBuffer INHERITED; 31 }; 32 33 #endif 34
