audio_system_win32.hpp

// Copyright Take Vos 2020-2022.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt)
 
#pragma once
 
#include "audio_system.hpp"
#include "../wfree_fifo.hpp"
#include <memory>
 
struct IMMDeviceEnumerator;
 
namespace hi::inline v1 {
class audio_system_win32_notification_client;
class audio_system_win32;
 
struct audio_system_win32_event {
    virtual void handle_event(audio_system_win32 *self) noexcept = 0;
};
 
class audio_system_win32 : public audio_system {
public:
    using super = audio_system;
 
    audio_system_win32();
    virtual ~audio_system_win32();
 
    [[nodiscard]] generator<audio_device &> devices() noexcept override
    {
        for (hilet &device : _devices) {
            co_yield *device;
        }
    }
 
private:
    std::vector<std::shared_ptr<audio_device>> _devices;
 
    IMMDeviceEnumerator *_device_enumerator;
    std::unique_ptr<audio_system_win32_notification_client> _notification_client;
 
    void update_device_list() noexcept;
 
    friend class audio_system_win32_notification_client;
};
 
} // namespace hi::inline v1