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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_PrimitiveType).
21          * @return the maximum number of quads using full size of index buffer.
22          */
maxQuads()23         int maxQuads() const {
24             return this->sizeInBytes() / (sizeof(uint16_t) * 6);
25         }
26 protected:
GrIndexBuffer(GrGpu * gpu,size_t sizeInBytes,bool dynamic)27     GrIndexBuffer(GrGpu* gpu, size_t sizeInBytes, bool dynamic)
28         : INHERITED(gpu, sizeInBytes, dynamic) {}
29 private:
30     typedef GrGeometryBuffer INHERITED;
31 };
32 
33 #endif
34