/*---------------------------------------------------------------------------*
  Project:  NintendoWare
  File:     snd_Bank.cpp
  
  Copyright (C)2009-2011 Nintendo/HAL Laboratory, Inc.  All rights reserved.
  
  These coded instructions, statements, and computer programs contain proprietary
  information of Nintendo and/or its licensed developers and are protected by
  national and international copyright laws. They may not be disclosed to third
  parties or copied or duplicated in any form, in whole or in part, without the
  prior written consent of Nintendo.
  
  The content herein is highly confidential and should be handled accordingly.
  
  $Revision: 31311 $
 *---------------------------------------------------------------------------*/

#include "precompiled.h"

#include <nw/snd/snd_Bank.h>
#include <nw/snd/snd_NoteOnCallback.h>      // NoteOnInfo
#include <nw/snd/snd_BankFileReader.h>
#include <nw/snd/snd_WaveFileReader.h>
#include <nw/snd/snd_Util.h>                // GetWaveFile

namespace nw {
namespace snd {
namespace internal {
namespace driver {

/* ========================================================================
        public functions
   ======================================================================== */

/*---------------------------------------------------------------------------*
  Name:         Bank

  Description:  コンストラクタ

  Arguments:    bankData - バンクデータへの参照

  Returns:      None.
 *---------------------------------------------------------------------------*/
Bank::Bank()
{
}

/*---------------------------------------------------------------------------*
  Name:         ~Bank

  Description:  デストラクタ

  Arguments:    None.

  Returns:      None.
 *---------------------------------------------------------------------------*/
Bank::~Bank()
{
}

Channel* Bank::NoteOn(
    const void* bankFile,
    const NoteOnInfo& noteOnInfo,
    const SoundArchive& archive,
    const SoundArchivePlayer& player,
    const PlayerHeapDataManager* dataMgr
) const
{
    if ( bankFile == NULL )
    {
        return NULL;
    }

    // VelocityRegionInfo の取得
    VelocityRegionInfo regionInfo;
    {
        BankFileReader reader( bankFile );
        if ( ! reader.ReadVelocityRegionInfo(
                &regionInfo,
                noteOnInfo.prgNo,
                noteOnInfo.key,
                noteOnInfo.velocity ) )
        {
            return NULL;
        }
    }

    // regnioInfo に応じた波形を取得する
    const void* waveFile = Util::GetWaveFile(
            regionInfo.waveArchiveId, regionInfo.waveIndex, archive, player );
    if ( waveFile == NULL )
    {
        if ( dataMgr != NULL )
        {
            waveFile = Util::GetWaveFile(
                    regionInfo.waveArchiveId, regionInfo.waveIndex, archive, dataMgr );
            if ( waveFile == NULL )
            {
                return NULL;
            }
        }
        else
        {
            return NULL;
        }
    }
    
    // 波形の詳細を取得、Channel 確保
    WaveInfo waveInfo;
    {
        WaveFileReader reader( waveFile );
        if ( ! reader.ReadWaveInfo( &waveInfo ) )
        {
            return NULL;
        }
    }
    
    Channel* pChannel = Channel::AllocChannel(
        ut::Min( static_cast<int>( waveInfo.channelCount ), 2 ),
        noteOnInfo.priority,
        noteOnInfo.channelCallback,
        noteOnInfo.channelCallbackData
    );
    if ( pChannel == NULL )
    {
        return NULL;
    }
    
    // 初期パラメータ設定
    pChannel->SetKey( noteOnInfo.key, regionInfo.originalKey );
    
    register int velocity = noteOnInfo.velocity;
    velocity *= velocity;
    velocity *= regionInfo.volume;
    float initVolume = static_cast<float>( velocity );
    initVolume /= (127.0f * 127.0f * 127.0f);
    pChannel->SetInitVolume( initVolume );
    pChannel->SetTune( regionInfo.pitch );
    
    pChannel->SetAttack( regionInfo.adshrCurve.attack );
    pChannel->SetHold( regionInfo.adshrCurve.hold );
    pChannel->SetDecay( regionInfo.adshrCurve.decay );
    pChannel->SetSustain( regionInfo.adshrCurve.sustain );
    pChannel->SetRelease( regionInfo.adshrCurve.release );
    
    float initPan = static_cast<f32>( noteOnInfo.initPan + regionInfo.pan - 64 ) / 63.0f;
    pChannel->SetInitPan( initPan );
//    pChannel->SetInitSurroundPan( 0.0f );

    pChannel->SetKeyGroupId( regionInfo.keyGroup );
    pChannel->SetIsIgnoreNoteOff( regionInfo.isIgnoreNoteOff );
    pChannel->SetInterpolationType( regionInfo.interpolationType );
    
    pChannel->Start( waveInfo, noteOnInfo.length, 0 );

    return pChannel;
}

} // namespace nw::snd::internal::driver
} // namespace nw::snd::internal
} // namespace nw::snd
} // namespace nw