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Diffstat (limited to 'src/engine/JackAudioDriver.h')
| -rw-r--r-- | src/engine/JackAudioDriver.h | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/src/engine/JackAudioDriver.h b/src/engine/JackAudioDriver.h deleted file mode 100644 index c55d392f..00000000 --- a/src/engine/JackAudioDriver.h +++ /dev/null @@ -1,176 +0,0 @@ -/* This file is part of Om. Copyright (C) 2006 Dave Robillard. - * - * Om 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. - * - * Om 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., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef JACKAUDIODRIVER_H -#define JACKAUDIODRIVER_H - -#include <jack/jack.h> -#include <jack/transport.h> -#include "List.h" -#include "AudioDriver.h" -#include "Buffer.h" - -namespace Om { - -class Patch; -class Port; -template <typename T> class PortBase; -class JackAudioDriver; -typedef jack_default_audio_sample_t jack_sample_t; - - -/** Used internally by JackAudioDriver to represent a Jack port. - * - * A Jack port always has a one-to-one association with a Patch port. - */ -class JackAudioPort : public DriverPort, public ListNode<JackAudioPort*> -{ -public: - JackAudioPort(JackAudioDriver* driver, PortBase<sample>* patch_port); - ~JackAudioPort(); - - void add_to_driver(); - void remove_from_driver(); - void set_name(const string& name) { jack_port_set_name(m_jack_port, name.c_str()); }; - - void prepare_buffer(jack_nframes_t nframes); - - jack_port_t* jack_port() const { return m_jack_port; } - DriverBuffer<sample>* buffer() const { return m_jack_buffer; } - void jack_buffer(jack_sample_t* s) { m_jack_buffer->set_data(s); } - PortBase<sample>* patch_port() const { return m_patch_port; } - -private: - // Prevent copies (undefined) - JackAudioPort(const JackAudioPort&); - JackAudioPort& operator=(const JackAudioPort&); - - JackAudioDriver* m_driver; - jack_port_t* m_jack_port; - DriverBuffer<sample>* m_jack_buffer; - PortBase<sample>* m_patch_port; -}; - - - -/** The Jack AudioDriver. - * - * The process callback here drives the entire audio thread by "pulling" - * events from queues, processing them, running the patches, and passing - * events along to the PostProcessor. - * - * \ingroup engine - */ -class JackAudioDriver : public AudioDriver -{ -public: - JackAudioDriver(); - JackAudioDriver(jack_client_t *jack_client); - ~JackAudioDriver(); - - void activate(); - void deactivate(); - void enable(); - void disable(); - - void process_events(jack_nframes_t block_start, jack_nframes_t block_end); - - DriverPort* create_port(PortBase<sample>* patch_port); - - Patch* root_patch() { return m_root_patch; } - void set_root_patch(Patch* patch) { m_root_patch = patch; } - - /** Transport state for this frame. - * Intended to only be called from the audio thread. */ - inline const jack_position_t* position() { return &m_position; } - inline const jack_transport_state_t transport_state() { return m_transport_state; } - - bool is_realtime() { return jack_is_realtime(m_client); } - - jack_client_t* jack_client() const { return m_client; } - samplecount buffer_size() const { return m_buffer_size; } - samplecount sample_rate() const { return m_sample_rate; } - bool is_activated() const { return m_is_activated; } - - samplecount time_stamp() const { return jack_frame_time(m_client); } - -private: - // Prevent copies (undefined) - JackAudioDriver(const JackAudioDriver&); - JackAudioDriver& operator=(const JackAudioDriver&); - - friend class JackAudioPort; - - // Functions for JackAudioPort - void add_port(JackAudioPort* port); - JackAudioPort* remove_port(JackAudioPort* port); - - // These are the static versions of the callbacks, they call - // the non-static ones below - inline static int process_cb(jack_nframes_t nframes, void* const jack_driver); - inline static void shutdown_cb(void* const jack_driver); - inline static int buffer_size_cb(jack_nframes_t nframes, void* const jack_driver); - inline static int sample_rate_cb(jack_nframes_t nframes, void* const jack_driver); - - // Non static callbacks - int m_process_cb(jack_nframes_t nframes); - void m_shutdown_cb(); - int m_buffer_size_cb(jack_nframes_t nframes); - int m_sample_rate_cb(jack_nframes_t nframes); - - jack_client_t* m_client; - jack_nframes_t m_buffer_size; - jack_nframes_t m_sample_rate; - bool m_is_activated; - bool m_local_client; ///< Whether m_client should be closed on destruction - jack_position_t m_position; - jack_transport_state_t m_transport_state; - - List<JackAudioPort*> m_ports; - - Patch* m_root_patch; - - jack_nframes_t m_start_of_current_cycle; - jack_nframes_t m_start_of_last_cycle; -}; - - -inline int JackAudioDriver::process_cb(jack_nframes_t nframes, void* jack_driver) -{ - return ((JackAudioDriver*)jack_driver)->m_process_cb(nframes); -} - -inline void JackAudioDriver::shutdown_cb(void* jack_driver) -{ - return ((JackAudioDriver*)jack_driver)->m_shutdown_cb(); -} - - -inline int JackAudioDriver::buffer_size_cb(jack_nframes_t nframes, void* jack_driver) -{ - return ((JackAudioDriver*)jack_driver)->m_buffer_size_cb(nframes); -} - - -inline int JackAudioDriver::sample_rate_cb(jack_nframes_t nframes, void* jack_driver) -{ - return ((JackAudioDriver*)jack_driver)->m_sample_rate_cb(nframes); -} - - -} // namespace Om - -#endif // JACKAUDIODRIVER_H |