buffer.h

/** Buffer
 * Copyright (C) Madura A.
 *
 * 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 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., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02111-1307, USA.
 */
#pragma once

#include "bufferconfig.h"
#include "stopwatch.h"

class Buffer {
public:
    enum class Type : int {
        StreamEnd = 0,
        StreamStart, // only for new stream starts: not at gapless resume or resume after pause
        StreamStop,
        StreamPause,
        StreamResume,
        StreamBuffer
    };

private:
    BufferConfig _config;
    real_t *_buffer;
    int _size;
    int _id;
    Type _type;
    StopWatch _watch;
    uint64_t _stream_id;

public:
    Buffer(BufferConfig &config, int id);

    ~Buffer();

    inline void SetBufferType(Type type) { _type = type; }

    inline Type GetBufferType() const { return _type; }
    inline BufferConfig *GetBufferConfig() { return &_config; }

    void Reset(BufferConfig *config);

    inline int GetId() const { return _id; }
    inline real_t *GetData() { return _buffer; }
    inline StopWatch &GetWatch() { return _watch; }

    inline void SetStreamId(uint64_t stream_id) { _stream_id = stream_id; }

    inline uint64_t GetStreamId() const { return _stream_id; }

    inline void Silence() {
        for (int i = 0; i < _size; i++) {
            _buffer[i] = (real_t)0.0;
        }
    }
};