
/*
 * Copyright 2010 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */


#ifndef GrIndexBuffer_DEFINED
#define GrIndexBuffer_DEFINED

#include "GrGeometryBuffer.h"

class GrIndexBuffer : public GrGeometryBuffer {
public:
    /**
     * Retrieves the maximum number of quads that could be rendered
     * from the index buffer (using kTriangles_GrPrimitiveType).
     * @return the maximum number of quads using full size of index buffer.
     */
    int maxQuads() const {
        return static_cast<int>(this->gpuMemorySize() / (sizeof(uint16_t) * 6));
    }
protected:
    GrIndexBuffer(GrGpu* gpu, size_t gpuMemorySize, bool dynamic, bool cpuBacked)
        : INHERITED(gpu, gpuMemorySize, dynamic, cpuBacked) {}
private:
    typedef GrGeometryBuffer INHERITED;
};

#endif