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67 lines
1.7 KiB
C++
67 lines
1.7 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef ADL_SOUND_H
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#define ADL_SOUND_H
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#include "audio/audiostream.h"
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#include "common/array.h"
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#include "common/frac.h"
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namespace Adl {
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class Speaker;
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struct Tone {
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double freq; // Hz
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double len; // ms
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Tone(double frequency, double length) : freq(frequency), len(length) { }
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};
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typedef Common::Array<Tone> Tones;
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class Sound : public Audio::AudioStream {
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public:
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Sound(const Tones &tones);
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~Sound() override;
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// AudioStream
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int readBuffer(int16 *buffer, const int numSamples) override;
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bool isStereo() const override { return false; }
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bool endOfData() const override;
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int getRate() const override { return _rate; }
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private:
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const Tones &_tones;
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Speaker *_speaker;
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int _rate;
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uint _toneIndex;
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int _samplesRem;
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};
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} // End of namespace Adl
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#endif
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