81 lines
2.2 KiB
C++
81 lines
2.2 KiB
C++
/**
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This file is a part of our_dick
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Copyright (C) 2021 rexy712
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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 Affero 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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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 Affero General Public License for more details.
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You should have received a copy of the GNU Affero 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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#ifndef OUR_DICK_AUDIO_IMPL_MIXER_HPP
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#define OUR_DICK_AUDIO_IMPL_MIXER_HPP
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#include <atomic>
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#include <vector>
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#include <mutex>
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#include <cstdlib> //size_t
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#include "channel.hpp"
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#include "audio/stream.hpp"
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namespace sfx::impl{
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//channel reservation needs to be thread safe and lock free
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class mixer
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{
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private:
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//all thread stuff
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std::atomic_bool m_paused;
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std::atomic_bool m_exit;
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std::atomic_bool m_operating;
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std::vector<channel> m_channels;
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//producer thread stuff
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std::mutex m_copy_lock;
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std::unique_lock<std::mutex> m_lk;
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sfx::stream m_output_sink;
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public:
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mixer(int output_channels, size_t channel_count, size_t samplerate);
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mixer(const mixer&) = delete;
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mixer(mixer&&) = delete;
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~mixer(void);
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void reserve_channels(size_t count);
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std::vector<channel>& channels(void);
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const std::vector<channel>& channels(void)const;
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channel& get_channel(size_t i);
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const channel& get_channel(size_t i)const;
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void lock(void);
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void consumer_lock(void);
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void unlock(void);
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void consumer_unlock(void);
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bool is_active(void)const;
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void set_active(bool b);
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bool is_paused(void)const;
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void pause(void);
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void resume(void);
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bool should_exit(void)const;
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void exit(void);
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size_t output_count(void)const;
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size_t samplerate(void)const;
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size_t channel_count(void)const;
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private:
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static int callback(const void* /*input*/, void* output, unsigned long frame_count, unsigned long flags, const stream_info&, mixer& mix);
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};
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}
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#endif
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