diff options
Diffstat (limited to 'src/plugins/qnx-audio/audio/qnxaudiooutput.cpp')
| -rw-r--r-- | src/plugins/qnx-audio/audio/qnxaudiooutput.cpp | 123 |
1 files changed, 104 insertions, 19 deletions
diff --git a/src/plugins/qnx-audio/audio/qnxaudiooutput.cpp b/src/plugins/qnx-audio/audio/qnxaudiooutput.cpp index 084c5b371..c4c09f543 100644 --- a/src/plugins/qnx-audio/audio/qnxaudiooutput.cpp +++ b/src/plugins/qnx-audio/audio/qnxaudiooutput.cpp @@ -43,19 +43,24 @@ #include <private/qaudiohelpers_p.h> +#pragma GCC diagnostic ignored "-Wvla" + QT_BEGIN_NAMESPACE QnxAudioOutput::QnxAudioOutput() - : m_source(0), - m_pushSource(false), - m_notifyInterval(1000), - m_error(QAudio::NoError), - m_state(QAudio::StoppedState), - m_volume(1.0), - m_periodSize(0), - m_pcmHandle(0), - m_bytesWritten(0), - m_intervalOffset(0) + : m_source(0) + , m_pushSource(false) + , m_notifyInterval(1000) + , m_error(QAudio::NoError) + , m_state(QAudio::StoppedState) + , m_volume(1.0) + , m_periodSize(0) + , m_pcmHandle(0) + , m_bytesWritten(0) + , m_intervalOffset(0) +#if _NTO_VERSION >= 700 + , m_pcmNotifier(0) +#endif { m_timer.setSingleShot(false); m_timer.setInterval(20); @@ -124,20 +129,16 @@ void QnxAudioOutput::reset() void QnxAudioOutput::suspend() { - m_timer.stop(); snd_pcm_playback_pause(m_pcmHandle); - setState(QAudio::SuspendedState); + if (state() != QAudio::InterruptedState) + suspendInternal(QAudio::SuspendedState); } void QnxAudioOutput::resume() { snd_pcm_playback_resume(m_pcmHandle); - if (m_pushSource) - setState(QAudio::IdleState); - else { - setState(QAudio::ActiveState); - m_timer.start(); - } + if (state() != QAudio::InterruptedState) + resumeInternal(); } int QnxAudioOutput::bytesFree() const @@ -146,6 +147,7 @@ int QnxAudioOutput::bytesFree() const return 0; snd_pcm_channel_status_t status; + memset(&status, 0, sizeof(status)); status.channel = SND_PCM_CHANNEL_PLAYBACK; const int errorCode = snd_pcm_plugin_status(m_pcmHandle, &status); @@ -226,7 +228,9 @@ QString QnxAudioOutput::category() const void QnxAudioOutput::pullData() { - if (m_state == QAudio::StoppedState || m_state == QAudio::SuspendedState) + if (m_state == QAudio::StoppedState + || m_state == QAudio::SuspendedState + || m_state == QAudio::InterruptedState) return; const int bytesAvailable = bytesFree(); @@ -300,6 +304,8 @@ bool QnxAudioOutput::open() return false; } + addPcmEventFilter(); + // Necessary so that bytesFree() which uses the "free" member of the status struct works snd_pcm_plugin_set_disable(m_pcmHandle, PLUGIN_MMAP); @@ -342,6 +348,8 @@ bool QnxAudioOutput::open() m_intervalOffset = 0; m_bytesWritten = 0; + createPcmNotifiers(); + return true; } @@ -349,6 +357,8 @@ void QnxAudioOutput::close() { m_timer.stop(); + destroyPcmNotifiers(); + if (m_pcmHandle) { snd_pcm_plugin_flush(m_pcmHandle, SND_PCM_CHANNEL_PLAYBACK); snd_pcm_close(m_pcmHandle); @@ -411,8 +421,62 @@ qint64 QnxAudioOutput::write(const char *data, qint64 len) } } +void QnxAudioOutput::suspendInternal(QAudio::State suspendState) +{ + m_timer.stop(); + setState(suspendState); +} + +void QnxAudioOutput::resumeInternal() +{ + if (m_pushSource) { + setState(QAudio::IdleState); + } else { + setState(QAudio::ActiveState); + m_timer.start(); + } +} + #if _NTO_VERSION >= 700 +QAudio::State suspendState(const snd_pcm_event_t &event) +{ + Q_ASSERT(event.type == SND_PCM_EVENT_AUDIOMGMT_STATUS); + Q_ASSERT(event.data.audiomgmt_status.new_status == SND_PCM_STATUS_SUSPENDED); + return event.data.audiomgmt_status.flags & SND_PCM_STATUS_EVENT_HARD_SUSPEND + ? QAudio::InterruptedState : QAudio::SuspendedState; +} + +void QnxAudioOutput::addPcmEventFilter() +{ + /* Enable PCM events */ + snd_pcm_filter_t filter; + memset(&filter, 0, sizeof(filter)); + filter.enable = (1<<SND_PCM_EVENT_AUDIOMGMT_STATUS) | + (1<<SND_PCM_EVENT_AUDIOMGMT_MUTE) | + (1<<SND_PCM_EVENT_OUTPUTCLASS); + snd_pcm_set_filter(m_pcmHandle, SND_PCM_CHANNEL_PLAYBACK, &filter); +} + +void QnxAudioOutput::createPcmNotifiers() +{ + // QSocketNotifier::Read for poll based event dispatcher. Exception for + // select based event dispatcher. + m_pcmNotifier = new QSocketNotifier(snd_pcm_file_descriptor(m_pcmHandle, + SND_PCM_CHANNEL_PLAYBACK), + QSocketNotifier::Read, this); + connect(m_pcmNotifier, &QSocketNotifier::activated, + this, &QnxAudioOutput::pcmNotifierActivated); +} + +void QnxAudioOutput::destroyPcmNotifiers() +{ + if (m_pcmNotifier) { + delete m_pcmNotifier; + m_pcmNotifier = 0; + } +} + void QnxAudioOutput::setTypeName(snd_pcm_channel_params_t *params) { if (m_category.isEmpty()) @@ -433,8 +497,29 @@ void QnxAudioOutput::setTypeName(snd_pcm_channel_params_t *params) strcpy(params->audio_type_name, latin1Category.constData()); } +void QnxAudioOutput::pcmNotifierActivated(int socket) +{ + Q_UNUSED(socket); + + snd_pcm_event_t pcm_event; + memset(&pcm_event, 0, sizeof(pcm_event)); + while (snd_pcm_channel_read_event(m_pcmHandle, SND_PCM_CHANNEL_PLAYBACK, &pcm_event) == 0) { + if (pcm_event.type == SND_PCM_EVENT_AUDIOMGMT_STATUS) { + if (pcm_event.data.audiomgmt_status.new_status == SND_PCM_STATUS_SUSPENDED) + suspendInternal(suspendState(pcm_event)); + else if (pcm_event.data.audiomgmt_status.new_status == SND_PCM_STATUS_RUNNING) + resumeInternal(); + else if (pcm_event.data.audiomgmt_status.new_status == SND_PCM_STATUS_PAUSED) + suspendInternal(QAudio::SuspendedState); + } + } +} + #else +void QnxAudioOutput::addPcmEventFilter() {} +void QnxAudioOutput::createPcmNotifiers() {} +void QnxAudioOutput::destroyPcmNotifiers() {} void QnxAudioOutput::setTypeName(snd_pcm_channel_params_t *) {} #endif |