libraries/snd/snd_BankFileReader.cpp

/*---------------------------------------------------------------------------*
  Project:  NintendoWare
  File:     snd_BankFileReader.cpp

  Copyright (C)2009-2010 Nintendo Co., Ltd./HAL Laboratory, Inc.  All rights reserved.

  These coded instructions, statements, and computer programs contain
  proprietary information of Nintendo of America Inc. and/or Nintendo
  Company Ltd., and are protected by Federal copyright law.  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.

  $Revision: 25221 $
 *---------------------------------------------------------------------------*/

#include "precompiled.h"

#include <nw/snd/snd_BankFileReader.h>

namespace nw {
namespace snd {
namespace internal {

namespace
{

const u32 SIGNATURE_INFO_BLOCK  = NW_UT_MAKE_SIGWORD( 'I', 'N', 'F', 'O' );

const u32 SUPPORTED_FILE_VERSION = 0x01000000;
const u32 CURRENT_FILE_VERSION   = 0x01000100;

bool IsValidFileHeader( const void* bankFile )
{
    const ut::BinaryFileHeader* header =
        reinterpret_cast<const ut::BinaryFileHeader*>( bankFile );

    // シグニチャ確認
    NW_ASSERTMSG( header->signature == BankFileReader::SIGNATURE_FILE,
            "invalid file signature. bank file is not available." );
    if ( header->signature != BankFileReader::SIGNATURE_FILE ) return false;

    // バージョン確認
    NW_ASSERTMSG( header->version >= SUPPORTED_FILE_VERSION,
            "bank file is not supported version.\n"
            "please reconvert file using new version tools.\n"
            "(SUPPORTED_FILE_VERSION:0x%08x >= your version:0x%08x)\n",
            SUPPORTED_FILE_VERSION, header->version
    );
    if ( header->version < SUPPORTED_FILE_VERSION ) return false;

    NW_ASSERTMSG( header->version <= CURRENT_FILE_VERSION,
            "bank file is not supported version.\n"
            "please reconvert file using new version tools.\n"
            "(CURRENT_FILE_VERSION:0x%08x <= your version:0x%08x)\n",
            CURRENT_FILE_VERSION, header->version
    );
    if ( header->version > CURRENT_FILE_VERSION ) return false;

    return true;
}

} // anonymous namespace


BankFileReader::BankFileReader( const void* bankFile )
: m_pHeader( NULL ),
  m_pInfoBlockBody( NULL )
{
    NW_NULL_ASSERT( bankFile );

    if ( ! IsValidFileHeader( bankFile ) ) return;

    m_pHeader = reinterpret_cast<const BankFile::FileHeader*>( bankFile );

    const BankFile::InfoBlock* infoBlock = m_pHeader->GetInfoBlock();
    NW_NULL_ASSERT( infoBlock );
    NW_ASSERT( infoBlock->header.kind == SIGNATURE_INFO_BLOCK );
    m_pInfoBlockBody = &infoBlock->body;
}

bool BankFileReader::ReadVelocityRegionInfo(
        VelocityRegionInfo* info,
        int programNo,
        int key,
        int velocity ) const
{
    // イレギュラーな programNo を指定された場合
    if ( programNo < 0 || programNo >= m_pInfoBlockBody->GetInstrumentCount() )
    {
        return false;
    }

    // ベロシティリージョンを取得
    const BankFile::Instrument* instrument =
        m_pInfoBlockBody->GetInstrument( programNo );
    if ( instrument == NULL )
    {
        return false;
    }

    const BankFile::KeyRegion* keyRegion = instrument->GetKeyRegion( key );
    if ( keyRegion == NULL )
    {
        return false;
    }

    const BankFile::VelocityRegion* velocityRegion =
        keyRegion->GetVelocityRegion( velocity );
    if ( velocityRegion == NULL )
    {
        return false;
    }

    // 波形アーカイブ ID / 波形アーカイブ内インデックスを取得
    NW_ASSERT( velocityRegion->waveIdTableIndex < m_pInfoBlockBody->GetWaveIdCount() );
    const Util::WaveId& waveId =
        m_pInfoBlockBody->GetWaveId( velocityRegion->waveIdTableIndex );

    // info への書き込み
    info->waveArchiveId     = waveId.waveArchiveId;
    info->waveIndex         = waveId.waveIndex;
    const BankFile::RegionParameter* regionParameter = velocityRegion->GetRegionParameter();
    if ( regionParameter == NULL )
    {
        info->originalKey       = velocityRegion->GetOriginalKey();
        info->volume            = velocityRegion->GetVolume();
        info->pan               = velocityRegion->GetPan();
    #ifdef NW_PLATFORM_RVL
        info->surroundPan       = velocityRegion->GetSurroundPan();
    #endif /* NW_PLATFORM_RVL */
        info->pitch             = velocityRegion->GetPitch();
        info->isIgnoreNoteOff   = velocityRegion->IsIgnoreNoteOff();
        info->keyGroup          = velocityRegion->GetKeyGroup();
        info->interpolationType = velocityRegion->GetInterpolationType();
        info->adshrCurve        = velocityRegion->GetAdshrCurve();
    }
    else
    {
        info->originalKey       = regionParameter->originalKey;
        info->volume            = regionParameter->volume;
        info->pan               = regionParameter->pan;
    #ifdef NW_PLATFORM_RVL
        info->surroundPan       = regionParameter->surroundPan;
    #endif /* NW_PLATFORM_RVL */
        info->pitch             = regionParameter->pitch;
        info->isIgnoreNoteOff   = regionParameter->isIgnoreNoteOff;
        info->keyGroup          = regionParameter->keyGroup;
        info->interpolationType = regionParameter->interpolationType;
        info->adshrCurve        = regionParameter->adshrCurve;
    }

    return true;
}

const Util::WaveIdTable&
BankFileReader::GetWaveIdTable() const
{
    return m_pInfoBlockBody->GetWaveIdTable();
}

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