Method LoadWave

ogsr_engine/xrSound/SoundRender_Source_loader.cpp:52–145

}

void CSoundRender_Source::LoadWave(LPCSTR pName)
{
    pname = pName;

    // Load file into memory and parse WAV-format
    OggVorbis_File ovf;
    constexpr ov_callbacks ovc = {ov_read_func, ov_seek_func, ov_close_func, ov_tell_func};
    IReader* wave = FS.r_open(pname.c_str());
    R_ASSERT3(wave && wave->length(), "Can't open wave file:", pname.c_str());
    ov_open_callbacks(wave, &ovf, NULL, 0, ovc);

    vorbis_info* ovi = ov_info(&ovf, -1);
    // verify
    R_ASSERT3(ovi, "Invalid source info:", pName);

#ifdef DEBUG
    if (ovi->channels == 2)
    {
        Msg("stereo sound source [%s]", pName);
    }
#endif

    ZeroMemory(&m_wformat, sizeof(WAVEFORMATEX));

    m_wformat.nSamplesPerSec = (ovi->rate);
    m_wformat.nChannels = u16(ovi->channels);

    if (SoundRender->supports_float_pcm)
    {
        m_wformat.wFormatTag = WAVE_FORMAT_IEEE_FLOAT;
        m_wformat.wBitsPerSample = 32;
    }
    else
    {
        m_wformat.wFormatTag = WAVE_FORMAT_PCM;
        m_wformat.wBitsPerSample = 16;
    }

    m_wformat.nBlockAlign = m_wformat.wBitsPerSample / 8 * m_wformat.nChannels;
    m_wformat.nAvgBytesPerSec = m_wformat.nSamplesPerSec * m_wformat.nBlockAlign;

    s64 pcm_total = ov_pcm_total(&ovf, -1);
    dwBytesTotal = u32(pcm_total * m_wformat.nBlockAlign);
    fTimeTotal = s_f_def_source_footer + dwBytesTotal / float(m_wformat.nAvgBytesPerSec);

    vorbis_comment* ovm = ov_comment(&ovf, -1);
    if (ovm->comments)
    {
        IReader F(ovm->user_comments[0], ovm->comment_lengths[0]);

        u32 vers{};
        if (F.elapsed() <= static_cast<int>(sizeof vers))
            Msg("! Invalid ogg-comment, file: [%s]", pName);
        else
            vers = F.r_u32();

        if (vers == 0x0001)
        {