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/*
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 <cassert>
#include "JackFFADOMidiSendQueue.h"
#include "JackMidiUtil.h"
using Jack::JackFFADOMidiSendQueue;
JackFFADOMidiSendQueue::JackFFADOMidiSendQueue()
{
// Empty
}
Jack::JackMidiWriteQueue::EnqueueResult
JackFFADOMidiSendQueue::EnqueueEvent(jack_nframes_t time, size_t size,
jack_midi_data_t *buffer)
{
assert(size == 1);
jack_nframes_t relative_time = (time < last_frame) ? 0 : time - last_frame;
if (index < relative_time) {
index = (relative_time % 8) ?
(relative_time & (~ ((jack_nframes_t) 7))) + 8 : relative_time;
}
if (index >= length) {
return BUFFER_FULL;
}
output_buffer[index] = 0x01000000 | ((uint32_t) *buffer);
index += 8;
return OK;
}
jack_nframes_t
JackFFADOMidiSendQueue::GetNextScheduleFrame()
{
return last_frame + index;
}
void
JackFFADOMidiSendQueue::ResetOutputBuffer(uint32_t *output_buffer,
jack_nframes_t length)
{
index = 0;
last_frame = GetLastFrame();
this->length = length;
this->output_buffer = output_buffer;
}
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