root/src/kits/game/GSUtility.h
//------------------------------------------------------------------------------
//      Copyright (c) 2001-2002, Haiku
//
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//      copy of this software and associated documentation files (the "Software"),
//      to deal in the Software without restriction, including without limitation
//      the rights to use, copy, modify, merge, publish, distribute, sublicense,
//      and/or sell copies of the Software, and to permit persons to whom the
//      Software is furnished to do so, subject to the following conditions:
//
//      The above copyright notice and this permission notice shall be included in
//      all copies or substantial portions of the Software.
//
//      THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//      IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//      FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//      AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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//      DEALINGS IN THE SOFTWARE.
//
//      File Name:              GameSoundDevice.h
//      Author:                 Christopher ML Zumwalt May (zummy@users.sf.net)
//      Description:    Utility functions used by sound system
//------------------------------------------------------------------------------
#ifndef _GAMESOUND_UTILITY_H
#define _GAMESOUND_UTILITY_H


#include <GameSoundDefs.h>
#include <MediaDefs.h>


struct _gs_ramp
{
        float inc;
        float orignal;
        float* value;

        float frame_total;
        float frame_inc;

        float frame_count;
        float frame_inc_count;

        bigtime_t duration;
};


_gs_ramp* InitRamp(float* value, float set, float frames, bigtime_t duration);
bool ChangeRamp(_gs_ramp* ramp);
size_t get_sample_size(int32 format);
void media_to_gs_format(gs_audio_format* dest,
        media_raw_audio_format* source);


template<typename T, int32 min, int32 max>
static inline T clamp(float value)
{
        if (value <= min)
                return min;
        if (value >= max)
                return max;
        return T(value);
}
#endif