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//
// AudioClock.c - MrsWatson
// Created by Nik Reiman on 1/5/12.
// Copyright (c) 2012 Teragon Audio. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
#include <stdio.h>
#include <stdlib.h>
#include "time/AudioClock.h"
AudioClock audioClockInstance = NULL;
void initAudioClock(void)
{
audioClockInstance = (AudioClock)malloc(sizeof(AudioClockMembers));
audioClockInstance->currentFrame = 0;
audioClockInstance->transportChanged = false;
audioClockInstance->isPlaying = false;
}
AudioClock getAudioClock(void)
{
return audioClockInstance;
}
void advanceAudioClock(AudioClock self, const unsigned long blocksize)
{
if (self->currentFrame == 0 || !self->isPlaying) {
self->transportChanged = true;
self->isPlaying = true;
} else {
self->transportChanged = false;
}
self->currentFrame += blocksize;
}
void audioClockStop(AudioClock self)
{
self->isPlaying = false;
self->transportChanged = true;
}
void freeAudioClock(AudioClock self)
{
if (self != NULL) {
free(self);
self = NULL;
}
}
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