[Webkit-unassigned] [Bug 45076] Add Panner files

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=45076





--- Comment #2 from Kenneth Russell <kbr at google.com>  2010-09-02 16:26:00 PST ---
(From update of attachment 66306)
Basically looks fine; one nit. Feel free to fix before commit if committing with webkit-patch land, or upload a new patch.

> Index: WebCore/platform/audio/Panner.h
> ===================================================================
> --- WebCore/platform/audio/Panner.h	(revision 0)
> +++ WebCore/platform/audio/Panner.h	(revision 0)
> @@ -0,0 +1,69 @@
> +/*
> + * 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.
> + * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
> + *     its contributors may be used to endorse or promote products derived
> + *     from this software without specific prior written permission.
> + *
> + * 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
> + * 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 Panner_h
> +#define Panner_h
> +
> +#include <wtf/PassOwnPtr.h>
> +
> +namespace WebCore {
> +
> +class AudioBus;
> +
> +// Abstract base class for panning a mono or stereo source.
> +
> +class Panner {
> +public:
> +    enum {
> +        PanningModelPassthrough = 0,
> +        PanningModelEqualPower = 1,
> +        PanningModelHRTF = 2,
> +        PanningModelSoundField = 3
> +    };
> +    
> +    typedef unsigned PanningModel;

Just use "enum PanningModel" and get rid of the typedef.

> +
> +    static PassOwnPtr<Panner> create(PanningModel model, double sampleRate);
> +
> +    virtual ~Panner() { };
> +
> +    PanningModel panningModel() const { return m_panningModel; }
> +
> +    virtual void pan(double azimuth, double elevation, AudioBus* inputBus, AudioBus* outputBus, size_t framesToProcess) = 0;
> +
> +    virtual void reset() = 0;
> +
> +protected:
> +    Panner(PanningModel model) : m_panningModel(model) { }
> +
> +    PanningModel m_panningModel;
> +};
> +
> +} // namespace WebCore
> +
> +#endif // Panner_h

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