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/* BEGIN_COMMON_COPYRIGHT_HEADER
* (c)LGPL2+
*
* LXQt - a lightweight, Qt based, desktop toolset
* https://lxqt.org
*
* Copyright: 2014 LXQt team
* Authors:
* Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
*
* This program or library is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* END_COMMON_COPYRIGHT_HEADER */
#include "ossengine.h"
#include "audiodevice.h"
#include <QDebug>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <cerrno>
#if defined(__FreeBSD__) || defined(__NetBSD__)
#include <sys/soundcard.h>
#elif defined(__linux__) || defined(__Linux__)
#include <linux/soundcard.h>
#else
#error "Not supported platform"
#endif
OssEngine::OssEngine(QObject *parent) :
AudioEngine(parent),
m_mixer(-1),
m_device(nullptr),
m_leftVolume(0),
m_rightVolume(0)
{
qDebug() << "OssEngine";
initMixer();
}
OssEngine::~OssEngine()
{
if(m_mixer >= 0)
close(m_mixer);
}
void OssEngine::initMixer() {
m_mixer = open ("/dev/mixer", O_RDWR, 0);
if (m_mixer < 0) {
qDebug() << "/dev/mixer cannot be opened";
return;
}
qDebug() << "InitMixer:" << m_mixer;
m_device = new AudioDevice(Sink, this);
m_device->setName(QStringLiteral("Master"));
m_device->setIndex(0);
m_device->setDescription(QStringLiteral("Master Volume"));
m_device->setMuteNoCommit(false);
updateVolume();
m_sinks.append(m_device);
emit sinkListChanged();
}
void OssEngine::updateVolume() {
if(m_mixer < 0 || !m_device)
return;
int volumes;
if(ioctl(m_mixer, MIXER_READ(SOUND_MIXER_VOLUME), &volumes) < 0) {
qDebug() << "updateVolume() failed" << errno;
}
m_leftVolume = volumes & 0xff; // left
m_rightVolume = (volumes >> 8) & 0xff; // right
qDebug() << "volume:" << m_leftVolume << m_rightVolume;
m_device->setVolumeNoCommit(m_leftVolume);
}
void OssEngine::setVolume(int volume) {
if(m_mixer < 0)
return;
int volumes = (volume << 8) + volume;
if(ioctl(m_mixer, MIXER_WRITE(SOUND_MIXER_VOLUME), &volumes) < 0) {
qDebug() << "setVolume() failed" << errno;
}
else {
qDebug() << "setVolume()" << volume;
}
}
void OssEngine::commitDeviceVolume(AudioDevice *device)
{
if (!device)
return;
setVolume(device->volume());
}
void OssEngine::setMute(AudioDevice * /*device*/, bool state)
{
if(state)
setVolume(0);
else
setVolume(m_leftVolume);
}
void OssEngine::setIgnoreMaxVolume(bool /*ignore*/)
{
// TODO
}
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