/*

 * Copyright (C) 2009 Apple Inc. All rights reserved.

 * Copyright (C) 2009 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 COMPUTER, INC. ``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 COMPUTER, INC. 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, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

 */

#ifndef Float32Array_h

#define Float32Array_h

#include "TypedArrayBase.h"

#include <wtf/MathExtras.h>

namespace WebCore {

class Float32Array : public TypedArrayBase<float> {

  public:

    static PassRefPtr<Float32Array> create(unsigned length);

    static PassRefPtr<Float32Array> create(float* array, unsigned length);

    static PassRefPtr<Float32Array> create(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset, unsigned length);

    using TypedArrayBase<float>::set;

    void set(unsigned index, double value)

    {

        if (index >= TypedArrayBase<float>::m_length)

            return;

        if (isnan(value)) // Clamp NaN to 0

            value = 0;

        TypedArrayBase<float>::data()[index] = static_cast<float>(value);

    }

    // Invoked by the indexed getter. Does not perform range checks; caller

    // is responsible for doing so and returning undefined as necessary.

    float item(unsigned index) const

    {

        ASSERT(index < TypedArrayBase<float>::m_length);

        float result = TypedArrayBase<float>::data()[index];

        if (isnan(result)) {

            // Clamp NaN to 0

            result = 0;

        }

        return result;

    }

  private:

    Float32Array(PassRefPtr<ArrayBuffer> buffer,

                    unsigned byteOffset,

                    unsigned length);

    // Make constructor visible to superclass.

    friend class TypedArrayBase<float>;

    // Overridden from ArrayBufferView.

    virtual bool isFloatArray() const { return true; }

    virtual PassRefPtr<ArrayBufferView> slice(int start, int end) const;

};

} // namespace WebCore

#endif // Float32Array_h