sky/engine/platform/exported/WebArrayBuffer.cpp

/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
 * OWNER OR 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,
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 */

#include "sky/engine/public/platform/WebArrayBuffer.h"

#include "sky/engine/wtf/ArrayBuffer.h"
#include "sky/engine/wtf/PassOwnPtr.h"

namespace blink {

WebArrayBuffer WebArrayBuffer::create(unsigned numElements, unsigned elementByteSize)
{
    RefPtr<ArrayBuffer> buffer = ArrayBuffer::create(numElements, elementByteSize);
    return WebArrayBuffer(buffer);
}

void WebArrayBuffer::reset()
{
    m_private.reset();
}

void WebArrayBuffer::assign(const WebArrayBuffer& other)
{
    m_private = other.m_private;
}

void* WebArrayBuffer::data() const
{
    if (!isNull())
        return const_cast<void*>(m_private->data());
    return 0;
}

unsigned WebArrayBuffer::byteLength() const
{
    if (!isNull())
        return m_private->byteLength();
    return 0;
}

WebArrayBuffer::WebArrayBuffer(const PassRefPtr<ArrayBuffer>& blob)
    : m_private(blob)
{
}

WebArrayBuffer& WebArrayBuffer::operator=(const PassRefPtr<ArrayBuffer>& blob)
{
    m_private = blob;
    return *this;
}

WebArrayBuffer::operator PassRefPtr<ArrayBuffer>() const
{
    return m_private.get();
}

} // namespace blink