/*
 * Copyright (C) 2010, 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 INC. 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 INC. 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
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

module audio {
    interface [
        Conditional=WEB_AUDIO,
        JSGenerateToJSObject
    ] AudioPannerNode : AudioNode {
        // Panning model
        const unsigned short EQUALPOWER = 0;
        const unsigned short HRTF = 1;
        const unsigned short SOUNDFIELD = 2;

        // Distance model
        const unsigned short LINEAR_DISTANCE = 0;
        const unsigned short INVERSE_DISTANCE = 1;
        const unsigned short EXPONENTIAL_DISTANCE = 2;

        // Default model for stereo is HRTF 
        // FIXME: use unsigned short when glue generation supports it
        attribute unsigned long panningModel
            setter raises(DOMException);

        // Uses a 3D cartesian coordinate system 
        void setPosition(in float x, in float y, in float z);
        void setOrientation(in float x, in float y, in float z);
        void setVelocity(in float x, in float y, in float z);

        // Distance model
        attribute unsigned long distanceModel; // FIXME: use unsigned short when glue generation supports it
        attribute float refDistance;
        attribute float maxDistance;
        attribute float rolloffFactor;

        // Directional sound cone
        attribute float coneInnerAngle;
        attribute float coneOuterAngle;
        attribute float coneOuterGain;

        // Dynamically calculated gain values          
        readonly attribute AudioGain coneGain;
        readonly attribute AudioGain distanceGain;
    };
}