diff options
Diffstat (limited to 'src/server/Engine.cpp')
| -rw-r--r-- | src/server/Engine.cpp | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/server/Engine.cpp b/src/server/Engine.cpp index 9359bacf..ead11895 100644 --- a/src/server/Engine.cpp +++ b/src/server/Engine.cpp @@ -66,6 +66,7 @@ Engine::Engine(Ingen::Shared::World* a_world) , _message_context(*this) , _process_context(*this) , _quit_flag(false) + , _direct_driver(true) { if (a_world->store()) { SharedPtr<EngineStore> estore = PtrCast<EngineStore>(a_world->store()); @@ -133,10 +134,27 @@ Engine::set_driver(SharedPtr<Driver> driver) _driver = driver; } +SampleCount +Engine::event_time() +{ + const SampleCount start = _direct_driver + ? _process_context.start() + : _driver->frame_time(); + + /* Exactly one cycle latency (some could run ASAP if we get lucky, but not + always, and a slight constant latency is far better than jittery lower + (average) latency */ + return start + _driver->block_length(); +} + static void execute_and_delete_event(ProcessContext& context, Event* ev) { ev->pre_process(); + if (ev->time() < context.start()) { + // Didn't get around to executing in time, oh well... + ev->set_time(context.start()); + } ev->execute(context); ev->post_process(); delete ev; @@ -146,6 +164,7 @@ void Engine::init(double sample_rate, uint32_t block_length) { set_driver(SharedPtr<Driver>(new DirectDriver(sample_rate, block_length))); + _direct_driver = true; } bool @@ -252,6 +271,8 @@ Engine::deactivate() unsigned Engine::run(uint32_t sample_count) { + _process_context.locate(_process_context.end(), sample_count, 0); + // Apply control bindings to input control_bindings()->pre_process( _process_context, _root_patch->port_impl(0)->buffer(0).get()); |