JackMidiAPI.cpp
/*
Copyright (C) 2007 Dmitry Baikov
Original JACK MIDI implementation Copyright (C) 2004 Ian Esten
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser 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.
*/
#include "JackError.h"
#include "JackMidiPort.h"
#include <errno.h>
#include <string.h>
#ifdef __cplusplus
extern "C"
{
#endif
LIB_EXPORT uint32_t jack_midi_get_event_count(void* port_buffer);
LIB_EXPORT int jack_midi_event_get(jack_midi_event_t* event,
void* port_buffer, uint32_t event_index);
LIB_EXPORT void jack_midi_clear_buffer(void* port_buffer);
LIB_EXPORT void jack_midi_reset_buffer(void* port_buffer);
LIB_EXPORT size_t jack_midi_max_event_size(void* port_buffer);
LIB_EXPORT jack_midi_data_t* jack_midi_event_reserve(void* port_buffer,
jack_nframes_t time, size_t data_size);
LIB_EXPORT int jack_midi_event_write(void* port_buffer,
jack_nframes_t time, const jack_midi_data_t* data, size_t data_size);
LIB_EXPORT jack_nframes_t jack_midi_get_lost_event_count(void* port_buffer);
#ifdef __cplusplus
}
#endif
using namespace Jack;
LIB_EXPORT
uint32_t jack_midi_get_event_count(void* port_buffer)
{
JackMidiBuffer *buf = (JackMidiBuffer*)port_buffer;
if (!buf || !buf->IsValid()) {
return 0;
}
return buf->event_count;
}
LIB_EXPORT
int jack_midi_event_get(jack_midi_event_t *event, void* port_buffer, uint32_t event_index)
{
JackMidiBuffer *buf = (JackMidiBuffer*)port_buffer;
if (!buf || !buf->IsValid()) {
return -EINVAL;
}
if (event_index >= buf->event_count) {
return -ENOBUFS;
}
JackMidiEvent* ev = &buf->events[event_index];
event->time = ev->time;
event->size = ev->size;
event->buffer = ev->GetData(buf);
return 0;
}
LIB_EXPORT
void jack_midi_clear_buffer(void* port_buffer)
{
JackMidiBuffer *buf = (JackMidiBuffer*)port_buffer;
if (buf && buf->IsValid()) {
buf->Reset(buf->nframes);
}
}
LIB_EXPORT
void jack_midi_reset_buffer(void* port_buffer)
{
MidiBufferInit(port_buffer, BUFFER_SIZE_MAX, BUFFER_SIZE_MAX);
}
LIB_EXPORT
size_t jack_midi_max_event_size(void* port_buffer)
{
JackMidiBuffer *buf = (JackMidiBuffer*)port_buffer;
if (buf && buf->IsValid()) {
return buf->MaxEventSize();
}
return 0;
}
LIB_EXPORT
jack_midi_data_t* jack_midi_event_reserve(void* port_buffer, jack_nframes_t time, size_t data_size)
{
JackMidiBuffer *buf = (JackMidiBuffer*)port_buffer;
if (! buf) {
jack_error("jack_midi_event_reserve: port buffer is set to NULL");
return 0;
}
if (! buf->IsValid()) {
jack_error("jack_midi_event_reserve: port buffer is invalid");
return 0;
}
if (time >= buf->nframes) {
jack_error("jack_midi_event_reserve: time parameter is out of range "
"(%lu >= %lu)", time, buf->nframes);
return 0;
}
if (buf->event_count && (buf->events[buf->event_count - 1].time > time)) {
jack_error("jack_midi_event_reserve: time parameter is earlier than "
"last reserved event");
return 0;
}
return buf->ReserveEvent(time, data_size);
}
LIB_EXPORT
int jack_midi_event_write(void* port_buffer,
jack_nframes_t time, const jack_midi_data_t* data, size_t data_size)
{
JackMidiBuffer *buf = (JackMidiBuffer*)port_buffer;
if (!buf || !buf->IsValid()) {
return -EINVAL;
}
if (time >= buf->nframes || (buf->event_count && buf->events[buf->event_count - 1].time > time)) {
return -EINVAL;
}
jack_midi_data_t* dest = buf->ReserveEvent(time, data_size);
if (!dest) {
return -ENOBUFS;
}
memcpy(dest, data, data_size);
return 0;
}
LIB_EXPORT
uint32_t jack_midi_get_lost_event_count(void* port_buffer)
{
JackMidiBuffer *buf = (JackMidiBuffer*)port_buffer;
if (buf && buf->IsValid()) {
return buf->lost_events;
}
return 0;
}
jack_midi_clear_buffer
LIB_EXPORT void jack_midi_clear_buffer(void *port_buffer)
Definition: JackMidiAPI.cpp:84
Jack
Definition: JackAC3Encoder.cpp:30
jack_midi_reset_buffer
LIB_EXPORT void jack_midi_reset_buffer(void *port_buffer)
Definition: JackMidiAPI.cpp:93
jack_error
SERVER_EXPORT void jack_error(const char *fmt,...)
Definition: JackError.cpp:92
jack_midi_event_t
Definition: JackMidiPort.h:33
jack_midi_get_lost_event_count
LIB_EXPORT jack_nframes_t jack_midi_get_lost_event_count(void *port_buffer)
Definition: JackMidiAPI.cpp:153
jack_midi_max_event_size
LIB_EXPORT size_t jack_midi_max_event_size(void *port_buffer)
Definition: JackMidiAPI.cpp:99
jack_midi_get_event_count
LIB_EXPORT uint32_t jack_midi_get_event_count(void *port_buffer)
Definition: JackMidiAPI.cpp:57
Jack::JackMidiEvent
Definition: JackMidiPort.h:46
jack_midi_event_get
LIB_EXPORT int jack_midi_event_get(jack_midi_event_t *event, void *port_buffer, uint32_t event_index)
Definition: JackMidiAPI.cpp:67
Jack::JackMidiBuffer
Definition: JackMidiPort.h:75
jack_midi_event_write
LIB_EXPORT int jack_midi_event_write(void *port_buffer, jack_nframes_t time, const jack_midi_data_t *data, size_t data_size)
Definition: JackMidiAPI.cpp:134
jack_midi_event_reserve
LIB_EXPORT jack_midi_data_t * jack_midi_event_reserve(void *port_buffer, jack_nframes_t time, size_t data_size)
Definition: JackMidiAPI.cpp:109