JackMidiBufferReadQueue.cpp
/*
Copyright (C) 2010 Devin Anderson
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 "JackMidiBufferReadQueue.h"
#include "JackMidiUtil.h"
#include "JackError.h"
using Jack::JackMidiBufferReadQueue;
JackMidiBufferReadQueue::JackMidiBufferReadQueue()
{
event_count = 0;
index = 0;
}
jack_midi_event_t *
JackMidiBufferReadQueue::DequeueEvent()
{
jack_midi_event_t *e = 0;
if (index < event_count) {
JackMidiEvent *event = &(buffer->events[index]);
midi_event.buffer = event->GetData(buffer);
midi_event.size = event->size;
midi_event.time = last_frame_time + event->time;
e = &midi_event;
index++;
}
return e;
}
void
JackMidiBufferReadQueue::ResetMidiBuffer(JackMidiBuffer *buffer)
{
event_count = 0;
index = 0;
if (! buffer) {
jack_error("JackMidiBufferReadQueue::ResetMidiBuffer - buffer reset "
"to NULL");
} else if (! buffer->IsValid()) {
jack_error("JackMidiBufferReadQueue::ResetMidiBuffer - buffer reset "
"to invalid buffer");
} else {
uint32_t lost_events = buffer->lost_events;
if (lost_events) {
jack_error("JackMidiBufferReadQueue::ResetMidiBuffer - %d events "
"lost during mixdown", lost_events);
}
this->buffer = buffer;
event_count = buffer->event_count;
last_frame_time = GetLastFrame();
}
}
jack_midi_event_t::buffer
jack_midi_data_t * buffer
Definition: JackMidiPort.h:37
Jack::JackMidiBufferReadQueue::DequeueEvent
jack_midi_event_t * DequeueEvent()
Definition: JackMidiBufferReadQueue.cpp:33
Jack::JackMidiBufferReadQueue::ResetMidiBuffer
void ResetMidiBuffer(JackMidiBuffer *buffer)
Definition: JackMidiBufferReadQueue.cpp:48
jack_error
SERVER_EXPORT void jack_error(const char *fmt,...)
Definition: JackError.cpp:92
jack_midi_event_t::size
size_t size
Definition: JackMidiPort.h:36
jack_midi_event_t
Definition: JackMidiPort.h:33
Jack::JackMidiEvent
Definition: JackMidiPort.h:46
Jack::JackMidiBuffer
Definition: JackMidiPort.h:75
Jack::JackMidiBufferReadQueue
Definition: JackMidiBufferReadQueue.h:31
jack_midi_event_t::time
jack_nframes_t time
Definition: JackMidiPort.h:35