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-rw-r--r--src/libs/engine/AlsaMidiDriver.cpp364
-rw-r--r--src/libs/engine/AlsaMidiDriver.h119
-rw-r--r--src/libs/engine/Engine.cpp8
-rw-r--r--src/libs/engine/Makefile.am6
4 files changed, 0 insertions, 497 deletions
diff --git a/src/libs/engine/AlsaMidiDriver.cpp b/src/libs/engine/AlsaMidiDriver.cpp
deleted file mode 100644
index a1638077..00000000
--- a/src/libs/engine/AlsaMidiDriver.cpp
+++ /dev/null
@@ -1,364 +0,0 @@
-/* This file is part of Ingen.
- * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
- *
- * Ingen 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.
- *
- * Ingen 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 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 St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "AlsaMidiDriver.h"
-#include <iostream>
-#include <cstdlib>
-#include <pthread.h>
-#include "types.h"
-#include <raul/Maid.h>
-#include "ThreadManager.h"
-#include "AudioDriver.h"
-#include "MidiBuffer.h"
-#include "DuplexPort.h"
-#ifdef HAVE_LASH
-#include "LashDriver.h"
-#endif
-using std::cout; using std::cerr; using std::endl;
-
-namespace Ingen {
-
-
-//// AlsaMidiPort ////
-
-AlsaMidiPort::AlsaMidiPort(AlsaMidiDriver* driver, DuplexPort* patch_port)
-: DriverPort(patch_port->is_input()),
- Raul::ListNode<AlsaMidiPort*>(this),
- _driver(driver),
- _patch_port(patch_port),
- _port_id(0),
- _midi_pool(new unsigned char*[patch_port->buffer_size()]),
- _events(1024)
-{
- assert(patch_port->poly() == 1);
-
- if (patch_port->is_input()) {
- if ((_port_id = snd_seq_create_simple_port(driver->seq_handle(), patch_port->path().c_str(),
- SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE,
- SND_SEQ_PORT_TYPE_APPLICATION)) < 0)
- {
- cerr << "[AlsaMidiPort] Error creating sequencer port." << endl;
- exit(EXIT_FAILURE);
- }
- } else {
- if ((_port_id = snd_seq_create_simple_port(driver->seq_handle(), patch_port->path().c_str(),
- SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ,
- SND_SEQ_PORT_TYPE_APPLICATION)) < 0)
- {
- cerr << "[AlsaMidiPort] Error creating sequencer port." << endl;
- exit(EXIT_FAILURE);
- }
- }
-
- /* Allocate event pool. This pool is used when preparing a block from the queue
- * of Alsa events. The buffer member of the MidiMessage's in the patch port's
- * buffer will be set directly to an element in this pool, then next cycle they
- * will be overwritten (eliminating the need for any allocation/freeing). */
- for (size_t i=0; i < patch_port->buffer_size(); ++i)
- _midi_pool[i] = new unsigned char[MAX_MIDI_EVENT_SIZE];
-
- patch_port->buffer(0)->clear();
- patch_port->fixed_buffers(true);
-}
-
-
-AlsaMidiPort::~AlsaMidiPort()
-{
- snd_seq_delete_simple_port(_driver->seq_handle(), _port_id);
-
- // Free event pool
- for (size_t i=0; i < _patch_port->buffer_size(); ++i)
- delete[] _midi_pool[i];
-
- delete[] _midi_pool;
-}
-
-
-void
-AlsaMidiPort::set_name(const string& name)
-{
- snd_seq_port_info_t* info = NULL;
- snd_seq_port_info_malloc(&info);
- snd_seq_get_port_info(_driver->seq_handle(), _port_id, info);
- snd_seq_port_info_set_name(info, name.c_str());
- snd_seq_set_port_info(_driver->seq_handle(), _port_id, info);
- snd_seq_port_info_free(info);
-}
-
-
-void
-AlsaMidiPort::event(snd_seq_event_t* const ev)
-{
- // Abuse the tick field to hold the timestamp
- ev->time.tick = _driver->audio_driver()->frame_time();
-
- // Fix noteons with velocity 0 (required for DSSI spec)
- if (ev->type == SND_SEQ_EVENT_NOTEON && ev->data.note.velocity == 0)
- ev->type = SND_SEQ_EVENT_NOTEOFF;
-
- _events.push(*ev);
-}
-
-
-/** Generates a flat array of MIDI events for patching.
- *
- * Prepares all events that occurred during the time interval passed
- * (which ideally are the events from the previous cycle with an exact
- * 1 cycle delay) and creates a flat port buffer for this cycle.
- */
-void
-AlsaMidiPort::prepare_block(const SampleCount block_start, const SampleCount block_end)
-{
- assert(block_end >= block_start);
-
- const SampleCount nframes = block_end - block_start;
- snd_seq_event_t* ev = NULL;
- size_t num_events = 0;
- size_t event_size = 0; // decoded length of Alsa event in bytes
- int timestamp = 0;
-
- MidiBuffer* patch_buf = dynamic_cast<MidiBuffer*>(_patch_port->buffer(0));
- assert(patch_buf);
-
- patch_buf->prepare_write(nframes);
-
- while (!_events.empty() && _events.front().time.tick < block_end) {
- assert(num_events < _patch_port->buffer_size());
- ev = &_events.front();
-
- timestamp = ev->time.tick - block_start;
- if (timestamp < 0) {
- // FIXME: remove this (obviously not realtime safe)
- cerr << "[AlsaMidiPort] Missed event by " << -timestamp << " samples!" << endl;
- timestamp = 0;
- }
- assert(timestamp < (int)(block_end - block_start));
-
- // Reset decoder so we don't get running status
- snd_midi_event_reset_decode(_driver->event_coder());
-
- // FIXME: is this realtime safe?
- if ((event_size = snd_midi_event_decode(_driver->event_coder(),
- _midi_pool[num_events], MAX_MIDI_EVENT_SIZE, ev)) > 0) {
-
- patch_buf->put_event(timestamp, event_size, _midi_pool[num_events]);
- ++num_events;
-
- } else {
- cerr << "[AlsaMidiPort] Unable to decode MIDI event" << endl;
- }
-
- _events.pop();
- }
-}
-
-
-
-//// AlsaMidiDriver ////
-
-
-bool AlsaMidiDriver::_midi_thread_exit_flag = true;
-
-
-AlsaMidiDriver::AlsaMidiDriver(AudioDriver* audio_driver)
-: _audio_driver(audio_driver),
- _seq_handle(NULL),
- _event_coder(NULL),
- _is_activated(false)
-{
- if (snd_seq_open(&_seq_handle, "hw", SND_SEQ_OPEN_INPUT, 0) < 0) {
- cerr << "[AlsaMidiDriver] Error opening ALSA sequencer." << endl;
- exit(EXIT_FAILURE);
- } else {
- cout << "[AlsaMidiDriver] Successfully opened ALSA sequencer." << endl;
- }
-
- if (snd_midi_event_new(3, &_event_coder)) {
- cerr << "[AlsaMidiDriver] Failed to initialize ALSA MIDI event coder!";
- exit(EXIT_FAILURE);
- } else {
- snd_midi_event_reset_encode(_event_coder);
- snd_midi_event_reset_decode(_event_coder);
- }
-
- snd_seq_set_client_name(_seq_handle, "Ingen");
-}
-
-
-AlsaMidiDriver::~AlsaMidiDriver()
-{
- deactivate();
- snd_midi_event_free(_event_coder);
- snd_seq_close(_seq_handle);
-}
-
-
-/** Launch and start the MIDI thread.
- */
-void
-AlsaMidiDriver::activate()
-{
- // Just exit if already running
- if (_midi_thread_exit_flag == false)
- return;
-
- bool success = false;
- _midi_thread_exit_flag = false;
-
- //if (Engine::instance().audio_driver()->is_realtime()) {
- pthread_attr_t attr;
- pthread_attr_init(&attr);
-
- if (pthread_attr_setschedpolicy(&attr, SCHED_FIFO)) {
- cerr << "[AlsaMidiDriver] Unable to set realtime scheduling for MIDI thread." << endl;
- }
-
- sched_param param;
- param.sched_priority = 10;
-
- pthread_attr_setstacksize(&attr, 1500000);
-
- if (pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED)
- || pthread_attr_setschedparam(&attr, &param))
- cout << "[AlsaMidiDriver] Unable to set SCHED_FIFO priority "
- << param.sched_priority << endl;
-
- if (!pthread_create(&_process_thread, &attr, process_midi_in, this)) {
- cout << "[AlsaMidiDriver] Started realtime MIDI thread (SCHED_FIFO, priority "
- << param.sched_priority << ")" << endl;
- success = true;
- } else {
- cerr << "[AlsaMidiDriver] Unable to start realtime MIDI thread." << endl;
- }
- pthread_attr_destroy(&attr);
- //}
-
- if (!success) {
- // FIXME: check for success
- pthread_create(&_process_thread, NULL, process_midi_in, this);
- cout << "[AlsaMidiDriver] Started non-realtime MIDI thread." << endl;
- }
-
-#ifdef HAVE_LASH
- cerr << "FIXME: LASH + ALSA" << endl;
- //Engine::instance().lash_driver()->set_alsa_client_id(snd_seq_client_id(_seq_handle));
-#endif
-
- _is_activated = true;
-}
-
-
-/** Terminate the MIDI thread.
- */
-void
-AlsaMidiDriver::deactivate()
-{
- if (_is_activated) {
- _midi_thread_exit_flag = true;
- pthread_cancel(_process_thread);
- pthread_join(_process_thread, NULL);
- _is_activated = false;
- }
-}
-
-
-/** Build flat arrays of events to be used as input for the given cycle.
- */
-void
-AlsaMidiDriver::prepare_block(const SampleCount block_start, const SampleCount block_end)
-{
- for (Raul::List<AlsaMidiPort*>::iterator i = _in_ports.begin(); i != _in_ports.end(); ++i)
- (*i)->prepare_block(block_start, block_end);
-}
-
-
-/** Add an Alsa MIDI port.
- *
- * Realtime safe, this is to be called at the beginning of a process cycle to
- * insert (and actually begin using) a new port.
- *
- * See create_port() and remove_port().
- */
-void
-AlsaMidiDriver::add_port(DriverPort* port)
-{
- assert(ThreadManager::current_thread_id() == THREAD_PROCESS);
- assert(dynamic_cast<AlsaMidiPort*>(port));
-
- if (port->is_input())
- _in_ports.push_back((AlsaMidiPort*)port);
- else
- _out_ports.push_back((AlsaMidiPort*)port);
-}
-
-
-/** Remove an Alsa MIDI port.
- *
- * Realtime safe. This is to be called at the beginning of a process cycle to
- * remove the port from the lists read by the audio thread, so the port
- * will no longer be used and can be removed afterwards.
- *
- * It is the callers responsibility to delete the returned port.
- */
-DriverPort*
-AlsaMidiDriver::remove_port(const Path& path)
-{
- assert(ThreadManager::current_thread_id() == THREAD_PROCESS);
-
- // FIXME: duplex?
-
- for (Raul::List<AlsaMidiPort*>::iterator i = _in_ports.begin(); i != _in_ports.end(); ++i)
- if ((*i)->patch_port()->path() == path)
- return _in_ports.erase(i)->elem(); // FIXME: leak
-
- for (Raul::List<AlsaMidiPort*>::iterator i = _out_ports.begin(); i != _out_ports.end(); ++i)
- if ((*i)->patch_port()->path() == path)
- return _out_ports.erase(i)->elem(); // FIXME: leak
-
- cerr << "[AlsaMidiDriver::remove_port] WARNING: Failed to find Jack port to remove!" << endl;
- return NULL;
-}
-
-
-/** MIDI thread.
- */
-void*
-AlsaMidiDriver::process_midi_in(void* alsa_driver)
-{
- AlsaMidiDriver* ad = (AlsaMidiDriver*)alsa_driver;
-
- snd_seq_event_t* ev;
-
- int npfd = snd_seq_poll_descriptors_count(ad->_seq_handle, POLLIN);
- struct pollfd pfd;
- snd_seq_poll_descriptors(ad->_seq_handle, &pfd, npfd, POLLIN);
-
- while ( ! _midi_thread_exit_flag)
- if (poll(&pfd, npfd, 100000) > 0)
- while (snd_seq_event_input(ad->_seq_handle, &ev) > 0)
- for (Raul::List<AlsaMidiPort*>::iterator i = ad->_in_ports.begin(); i != ad->_in_ports.end(); ++i)
- if ((*i)->port_id() == ev->dest.port)
- (*i)->event(ev);
-
- cout << "[AlsaMidiDriver] Exiting MIDI thread." << endl;
-
- return NULL;
-}
-
-
-} // namespace Ingen
-
diff --git a/src/libs/engine/AlsaMidiDriver.h b/src/libs/engine/AlsaMidiDriver.h
deleted file mode 100644
index 88daf94a..00000000
--- a/src/libs/engine/AlsaMidiDriver.h
+++ /dev/null
@@ -1,119 +0,0 @@
-/* This file is part of Ingen.
- * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
- *
- * Ingen 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.
- *
- * Ingen 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 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 St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef ALSAMIDIDRIVER_H
-#define ALSAMIDIDRIVER_H
-
-#include <boost/utility.hpp>
-#include <alsa/asoundlib.h>
-#include <raul/List.h>
-#include <raul/SRSWQueue.h>
-#include "MidiDriver.h"
-
-
-namespace Ingen {
-
-class Node;
-class SetPortValueEvent;
-class AlsaMidiDriver;
-class AudioDriver;
-class DuplexPort;
-
-static const int MAX_MIDI_EVENT_SIZE = 3;
-
-
-/** Representation of an ALSA MIDI port.
- *
- * \ingroup engine
- */
-class AlsaMidiPort : public DriverPort, public Raul::ListNode<AlsaMidiPort*>
-{
-public:
- AlsaMidiPort(AlsaMidiDriver* driver, DuplexPort* port);
- virtual ~AlsaMidiPort();
-
- void event(snd_seq_event_t* const ev);
-
- void prepare_block(const SampleCount block_start, const SampleCount block_end);
-
- void set_name(const std::string& name);
-
- int port_id() const { return _port_id; }
- DuplexPort* patch_port() const { return _patch_port; }
-
-private:
- AlsaMidiDriver* _driver;
- DuplexPort* _patch_port;
- int _port_id;
- unsigned char** _midi_pool; ///< Pool of raw MIDI events for MidiMessage::buffer
- Raul::SRSWQueue<snd_seq_event_t> _events;
-};
-
-
-/** Alsa MIDI driver.
- *
- * This driver reads Alsa MIDI events and dispatches them to the appropriate
- * AlsaMidiPort for processing.
- *
- * \ingroup engine
- */
-class AlsaMidiDriver : public MidiDriver
-{
-public:
- AlsaMidiDriver(AudioDriver* audio_driver);
- ~AlsaMidiDriver();
-
- void activate();
- void deactivate();
-
- bool is_activated() const { return _is_activated; }
-
- void prepare_block(const SampleCount block_start, const SampleCount block_end);
-
- AudioDriver* audio_driver() { return _audio_driver; }
-
- DriverPort* create_port(DuplexPort* patch_port)
- { return new AlsaMidiPort(this, patch_port); }
-
- void add_port(DriverPort* port);
- DriverPort* remove_port(const Raul::Path& path);
-
- snd_seq_t* seq_handle() const { return _seq_handle; }
- snd_midi_event_t* event_coder() const { return _event_coder; }
-
-private:
- Raul::List<AlsaMidiPort*> _in_ports;
- Raul::List<AlsaMidiPort*> _out_ports;
-
- friend class AlsaMidiPort;
-
- // MIDI thread
- static void* process_midi_in(void* me);
-
- AudioDriver* _audio_driver;
- snd_seq_t* _seq_handle;
- snd_midi_event_t* _event_coder;
- pthread_t _process_thread;
- bool _is_activated;
- static bool _midi_thread_exit_flag;
-};
-
-
-} // namespace Ingen
-
-
-#endif // ALSAMIDIDRIVER_H
diff --git a/src/libs/engine/Engine.cpp b/src/libs/engine/Engine.cpp
index ca813ed0..f76790ff 100644
--- a/src/libs/engine/Engine.cpp
+++ b/src/libs/engine/Engine.cpp
@@ -39,9 +39,6 @@
#ifdef HAVE_JACK_MIDI
#include "JackMidiDriver.h"
#endif
-#ifdef HAVE_ALSA_MIDI
-#include "AlsaMidiDriver.h"
-#endif
#ifdef HAVE_LASH
#include "LashDriver.h"
#endif
@@ -196,8 +193,6 @@ Engine::activate()
#ifdef HAVE_JACK_MIDI
_midi_driver = new JackMidiDriver(((JackAudioDriver*)_audio_driver.get())->jack_client());
-#elif HAVE_ALSA_MIDI
- _midi_driver = new AlsaMidiDriver(_audio_driver.get());
#else
_midi_driver = new DummyMidiDriver();
#endif
@@ -217,9 +212,6 @@ Engine::activate()
_audio_driver->set_root_patch(root_patch);
_audio_driver->activate();
-#ifdef HAVE_ALSA_MIDI
- _midi_driver->activate();
-#endif
_post_processor->start();
diff --git a/src/libs/engine/Makefile.am b/src/libs/engine/Makefile.am
index d11609b9..32fa531b 100644
--- a/src/libs/engine/Makefile.am
+++ b/src/libs/engine/Makefile.am
@@ -169,12 +169,6 @@ libingen_engine_la_SOURCES += \
jack_compat.h
endif
-if WITH_ALSA_MIDI
-libingen_engine_la_SOURCES += \
- AlsaMidiDriver.h \
- AlsaMidiDriver.cpp
-endif
-
if WITH_LADSPA
libingen_engine_la_SOURCES += \
LADSPANode.h \
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-26 07:43:34 +0000