JackMidiBufferWriteQueue.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 "JackMidiBufferWriteQueue.h"
#include "JackMidiUtil.h"
#include "JackError.h"
using Jack::JackMidiBufferWriteQueue;
JackMidiBufferWriteQueue::JackMidiBufferWriteQueue()
{
// Empty
}
Jack::JackMidiWriteQueue::EnqueueResult
JackMidiBufferWriteQueue::EnqueueEvent(jack_nframes_t time, size_t size,
jack_midi_data_t *data)
{
if (time >= next_frame_time) {
return EVENT_EARLY;
}
if (time < last_frame_time) {
time = last_frame_time;
}
jack_midi_data_t *dst = buffer->ReserveEvent(time - last_frame_time, size);
if (! dst) {
return size > max_bytes ? BUFFER_TOO_SMALL : BUFFER_FULL;
}
memcpy(dst, data, size);
return OK;
}
void
JackMidiBufferWriteQueue::ResetMidiBuffer(JackMidiBuffer *buffer,
jack_nframes_t frames)
{
if (! buffer) {
jack_error("JackMidiBufferWriteQueue::ResetMidiBuffer - buffer reset "
"to NULL");
} else if (! buffer->IsValid()) {
jack_error("JackMidiBufferWriteQueue::ResetMidiBuffer - buffer reset "
"to invalid buffer");
} else {
this->buffer = buffer;
buffer->Reset(frames);
last_frame_time = GetLastFrame();
max_bytes = buffer->MaxEventSize();
next_frame_time = last_frame_time + frames;
}
}
Jack::JackMidiBufferWriteQueue::EnqueueEvent
EnqueueResult EnqueueEvent(jack_nframes_t time, size_t size, jack_midi_data_t *buffer)
Definition: JackMidiBufferWriteQueue.cpp:32
jack_error
SERVER_EXPORT void jack_error(const char *fmt,...)
Definition: JackError.cpp:92
Jack::JackMidiBuffer
Definition: JackMidiPort.h:75
Jack::JackMidiBufferWriteQueue
Definition: JackMidiBufferWriteQueue.h:31
Jack::JackMidiBufferWriteQueue::ResetMidiBuffer
void ResetMidiBuffer(JackMidiBuffer *buffer, jack_nframes_t frames)
Definition: JackMidiBufferWriteQueue.cpp:50