67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
/*
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Copyright (C) 2010 Devin Anderson
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "JackMidiBufferWriteQueue.h"
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#include "JackMidiUtil.h"
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#include "JackError.h"
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using Jack::JackMidiBufferWriteQueue;
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JackMidiBufferWriteQueue::JackMidiBufferWriteQueue()
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{
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// Empty
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}
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Jack::JackMidiWriteQueue::EnqueueResult
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JackMidiBufferWriteQueue::EnqueueEvent(jack_nframes_t time, size_t size,
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jack_midi_data_t *data)
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{
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if (time >= next_frame_time) {
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return EVENT_EARLY;
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}
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if (time < last_frame_time) {
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time = last_frame_time;
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}
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jack_midi_data_t *dst = buffer->ReserveEvent(time - last_frame_time, size);
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if (! dst) {
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return size > max_bytes ? BUFFER_TOO_SMALL : BUFFER_FULL;
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}
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memcpy(dst, data, size);
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return OK;
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}
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void
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JackMidiBufferWriteQueue::ResetMidiBuffer(JackMidiBuffer *buffer,
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jack_nframes_t frames)
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{
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if (! buffer) {
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jack_error("JackMidiBufferWriteQueue::ResetMidiBuffer - buffer reset "
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"to NULL");
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} else if (! buffer->IsValid()) {
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jack_error("JackMidiBufferWriteQueue::ResetMidiBuffer - buffer reset "
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"to invalid buffer");
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} else {
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this->buffer = buffer;
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buffer->Reset(frames);
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last_frame_time = GetLastFrame();
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max_bytes = buffer->MaxEventSize();
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next_frame_time = last_frame_time + frames;
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}
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}
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