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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef ADL_SOUND_H
#define ADL_SOUND_H
#include "audio/audiostream.h"
#include "common/array.h"
#include "common/frac.h"
namespace Adl {
class Speaker;
struct Tone {
double freq; // Hz
double len; // ms
Tone(double frequency, double length) : freq(frequency), len(length) { }
};
typedef Common::Array<Tone> Tones;
class Sound : public Audio::AudioStream {
public:
Sound(const Tones &tones);
~Sound() override;
// AudioStream
int readBuffer(int16 *buffer, const int numSamples) override;
bool isStereo() const override { return false; }
bool endOfData() const override;
int getRate() const override { return _rate; }
private:
const Tones &_tones;
Speaker *_speaker;
int _rate;
uint _toneIndex;
int _samplesRem;
};
} // End of namespace Adl
#endif
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