/***************************************************************************
* Copyright (C) 2015-2021 by Ilya Kotov *
* forkotov02@ya.ru *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <QObject>
#include <QSettings>
#include <QDir>
#include <QSettings>
#include "decoder_xmp.h"
// Decoder class
DecoderXmp *DecoderXmp::m_instance = nullptr;
DecoderXmp::DecoderXmp(const QString &path) : Decoder(nullptr), m_path(path)
{
m_instance = this;
}
DecoderXmp::~DecoderXmp()
{
if(m_instance == this)
m_instance = nullptr;
deinit();
}
DecoderXmp *DecoderXmp::instance()
{
return m_instance;
}
bool DecoderXmp::initialize()
{
m_ctx = xmp_create_context();
int err = xmp_load_module(m_ctx, m_path.toLocal8Bit().data());
if(err != 0)
{
qWarning("DecoderXmp: unable to load module file, error = %d", err);
xmp_free_context(m_ctx);
m_ctx = nullptr;
return false;
}
xmp_module_info mi;
xmp_get_module_info(m_ctx, &mi);
m_totalTime = mi.seq_data[0].duration;
QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
m_srate = settings.value("Xmp/sample_rate", 44100).toInt();
xmp_start_player(m_ctx, m_srate, 0);
readSettings();
configure(m_srate, 2, Qmmp::PCM_S16LE);
return true;
}
qint64 DecoderXmp::totalTime() const
{
return m_totalTime;
}
int DecoderXmp::bitrate() const
{
return 8;
}
qint64 DecoderXmp::read(unsigned char *audio, qint64 maxSize)
{
int c = xmp_play_buffer(m_ctx, audio, maxSize, 1);
if(c == 0)
return maxSize;
else if(c == -XMP_END)
return 0;
return -1;
}
void DecoderXmp::seek(qint64 pos)
{
xmp_seek_time(m_ctx, pos);
}
void DecoderXmp::deinit()
{
if(m_ctx)
{
xmp_end_player(m_ctx);
xmp_release_module(m_ctx);
xmp_free_context(m_ctx);
m_ctx = nullptr;
}
}
void DecoderXmp::readSettings()
{
if(m_ctx)
{
QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
settings.beginGroup("Xmp");
xmp_set_player(m_ctx, XMP_PLAYER_AMP, settings.value("amp_factor", 1).toInt());
xmp_set_player(m_ctx, XMP_PLAYER_MIX, settings.value("stereo_mix", 70).toInt());
xmp_set_player(m_ctx, XMP_PLAYER_INTERP, settings.value("interpolation", XMP_INTERP_LINEAR).toInt());
int flags = 0;
if(settings.value("lowpass", false).toBool())
flags |= XMP_DSP_LOWPASS;
xmp_set_player(m_ctx, XMP_PLAYER_DSP, flags);
flags = 0;
if(settings.value("vblank", false).toBool())
flags |= XMP_FLAGS_VBLANK;
if(settings.value("fx9bug", false).toBool())
flags |= XMP_FLAGS_FX9BUG;
xmp_set_player(m_ctx, XMP_PLAYER_FLAGS, flags);
settings.endGroup();
}
}
