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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* event.h
*
* Sat Sep 18 22:02:16 CEST 2010
* Copyright 2010 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of DrumGizmo.
*
* DrumGizmo 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 3 of the License, or
* (at your option) any later version.
*
* DrumGizmo 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 DrumGizmo; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#pragma once
#include <map>
#include <stdio.h>
#include <string>
#include <mutex>
#include <sndfile.h>
#include "audiofile.h"
#include "audio.h"
#include "audiocache.h"
typedef unsigned int timepos_t;
class Event
{
public:
virtual ~Event()
{
}
typedef enum
{
sample
} type_t;
virtual type_t getType() const = 0;
channel_t channel;
timepos_t offset; //< Global position (ie. not relative to buffer)
};
#define NO_RAMPDOWN -1
class EventSample : public Event
{
public:
EventSample(channel_t c, float g, AudioFile* af,
const std::string& grp, void* instr)
{
cache_id = CACHE_NOID;
channel = c;
gain = g;
t = 0;
file = af;
group = grp;
instrument = instr;
rampdown = NO_RAMPDOWN;
ramp_start = 0;
}
Event::type_t getType() const
{
return Event::sample;
}
cacheid_t cache_id;
sample_t* buffer;
size_t buffer_size;
float gain;
unsigned int t;
AudioFile* file;
std::string group;
void* instrument;
int rampdown;
int ramp_start;
float scale{1.0f};
};
class EventQueue
{
public:
void post(Event* event, timepos_t time);
Event* take(timepos_t time);
bool hasEvent(timepos_t time);
size_t getSize() const
{
return queue.size();
}
private:
std::multimap<timepos_t, Event*> queue;
std::mutex mutex;
};
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