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https://github.com/scummvm/scummvm.git
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fda1ce1672
This not only decreases the amount of XBIOS calls but also avoids repeating the sample buffer in case of a heavier CPU load. Also clean up the mixer code.
57 lines
1.6 KiB
C++
57 lines
1.6 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 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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*
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*/
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#ifndef BACKENDS_MIXER_ATARI_H
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#define BACKENDS_MIXER_ATARI_H
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#include "backends/mixer/mixer.h"
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#include "common/events.h"
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/**
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* Atari XBIOS based audio mixer.
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*/
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class AtariMixerManager : public MixerManager, Common::EventObserver {
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public:
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AtariMixerManager();
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virtual ~AtariMixerManager();
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virtual void init() override;
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void update();
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void suspendAudio() override;
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int resumeAudio() override;
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bool notifyEvent(const Common::Event &event) override;
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private:
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int _outputRate = 0;
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int _outputChannels = 0;
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int _samples = 0;
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uint8 *_samplesBuf = nullptr;
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byte *_atariSampleBuffer = nullptr;
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byte *_atariPhysicalSampleBuffer = nullptr;
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byte *_atariLogicalSampleBuffer = nullptr;
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bool _downsample = false;
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};
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#endif
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