diff options
Diffstat (limited to 'libs/backends/portaudio/portaudio_backend.cc')
| -rw-r--r-- | libs/backends/portaudio/portaudio_backend.cc | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/libs/backends/portaudio/portaudio_backend.cc b/libs/backends/portaudio/portaudio_backend.cc index 0555f2596b..cfab0d172c 100644 --- a/libs/backends/portaudio/portaudio_backend.cc +++ b/libs/backends/portaudio/portaudio_backend.cc @@ -37,6 +37,8 @@ #include "i18n.h" #include "win_utils.h" +#include "mmcss.h" + #include "debug.h" using namespace ARDOUR; @@ -79,6 +81,8 @@ PortAudioBackend::PortAudioBackend (AudioEngine& e, AudioBackendInfo& info) _instance_name = s_instance_name; pthread_mutex_init (&_port_callback_mutex, 0); + mmcss::initialize (); + _pcmio = new PortAudioIO (); _midiio = new WinMMEMidiIO (); } @@ -87,6 +91,9 @@ PortAudioBackend::~PortAudioBackend () { delete _pcmio; _pcmio = 0; delete _midiio; _midiio = 0; + + mmcss::deinitialize (); + pthread_mutex_destroy (&_port_callback_mutex); } @@ -636,7 +643,23 @@ PortAudioBackend::portaudio_process_thread (void *arg) ThreadData* td = reinterpret_cast<ThreadData*> (arg); boost::function<void ()> f = td->f; delete td; + +#ifdef USE_MMCSS_THREAD_PRIORITIES + HANDLE task_handle; + + mmcss::set_thread_characteristics ("Pro Audio", &task_handle); + mmcss::set_thread_priority (task_handle, mmcss::AVRT_PRIORITY_NORMAL); +#endif + + DWORD tid = GetThreadId (GetCurrentThread ()); + DEBUG_THREADS (string_compose ("Process Thread Child ID: %1\n", tid)); + f (); + +#ifdef USE_MMCSS_THREAD_PRIORITIES + mmcss::revert_thread_characteristics (task_handle); +#endif + return 0; } @@ -1308,6 +1331,16 @@ PortAudioBackend::main_process_thread () engine.halted_callback("PortAudio I/O error."); } +#ifdef USE_MMCSS_THREAD_PRIORITIES + HANDLE task_handle; + + mmcss::set_thread_characteristics ("Pro Audio", &task_handle); + mmcss::set_thread_priority (task_handle, mmcss::AVRT_PRIORITY_NORMAL); +#endif + + DWORD tid = GetThreadId (GetCurrentThread ()); + DEBUG_THREADS (string_compose ("Process Thread Master ID: %1\n", tid)); + while (_run) { if (_freewheeling != _freewheel) { @@ -1511,6 +1544,11 @@ PortAudioBackend::main_process_thread () if (_run) { engine.halted_callback("PortAudio I/O error."); } + +#ifdef USE_MMCSS_THREAD_PRIORITIES + mmcss::revert_thread_characteristics (task_handle); +#endif + return 0; } |