71 lines
1.6 KiB
C++
71 lines
1.6 KiB
C++
// Meteor - A Nintendo Gameboy Advance emulator
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// Copyright (C) 2009-2011 Philippe Daouadi
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (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, see <http://www.gnu.org/licenses/>.
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#ifndef __AUDIO_SOUND_2_H__
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#define __AUDIO_SOUND_2_H__
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#include <stdint.h>
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#include <istream>
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#include <ostream>
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namespace AMeteor
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{
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namespace Audio
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{
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class Sound2
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{
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public :
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Sound2 (uint16_t& cntl, uint16_t& cnth, uint16_t freq);
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void Reset ();
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// call this at the frequence given in constructor
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void SoundTick ();
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void ResetSound ();
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void ResetEnvelope ()
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{
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m_envelope = 0;
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}
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int8_t GetSample () const
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{
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return m_sample;
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}
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bool IsOn () const
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{
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return m_on;
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}
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bool SaveState (std::ostream& stream);
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bool LoadState (std::istream& stream);
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private :
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uint16_t &m_cntl, &m_cnth;
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bool m_on;
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uint32_t m_posP, m_posE;
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int8_t m_sample;
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uint16_t m_speriod;
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uint8_t m_envelope;
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uint32_t m_length;
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bool m_timed;
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};
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}
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}
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#endif
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