WebGraphicsMemoryStats.h

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef WebGraphicsMemoryStats_h
#define WebGraphicsMemoryStats_h

#include "WebCommon.h"

namespace WebKit {

struct WebGraphicsManagedMemoryStats {
    // Bytes required for all visible textures.
    size_t bytesVisible;

    // Bytes required for all textures visible or a few screens away from
    // being visible.
    size_t bytesVisibleAndNearby;

    // The number of bytes currently allocated.
    size_t bytesAllocated;

    // Whether or not a backbuffer is currently requested (the memory usage
    // of the buffer is known by the GPU process).
    bool backbufferRequested;

    WebGraphicsManagedMemoryStats() 
        : bytesVisible(0)
        , bytesVisibleAndNearby(0)
        , bytesAllocated(0)
        , backbufferRequested(0)
    {
    }
};

} // namespace WebKit

#endif