79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
#pragma once
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#include "misc/delegates.h"
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#include "misc/singleton/singleton.h"
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#include <string>
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#include <unordered_map>
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#include "mempool.h"
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#include "mixer_track.h"
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#include "taskflow/taskflow.hpp"
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class plugin_host;
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class channel_interface;
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class mixer_track;
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class mixer : public singleton_t<mixer> {
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typedef std::pair<int32_t, std::vector<mixer_track*>> layer_type;
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public:
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void init(singleton_initliazer& initliazer) override;
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void begin_release(singleton_release_guard &release_guard) override;
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void release(singleton_release_guard& release_guard) override;
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const char* get_name() override { return "mixer"; }
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dummy_track* create_dummy_track(const std::string& in_name);
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instrument_track* create_instrument_track(plugin_host* in_instrument);
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void remove_track(mixer_track* track);
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const std::vector<mixer_track*>& get_tracks() const { return tracks_; }
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void process(uint32_t in_frames, circular_buffer_vector_type& out_buffer);
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void reset();
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[[nodiscard]] dummy_track* get_master() const { return reinterpret_cast<dummy_track*>(tracks_[0]); }
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void request_build_process_node();
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dummy_track zero_track; // 用于没有任何音频输出的通道
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multicast_delegate<mixer_track*> on_add_track;
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multicast_delegate<mixer_track*> on_add_track_main_thread;
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multicast_delegate<mixer_track*> on_remove_track;
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multicast_delegate<mixer_track*> on_remove_track_main_thread;
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mixer_track* selected_track = nullptr;
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private:
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void push_track(mixer_track* track);
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template<typename T>
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auto alloc_track() -> T* {
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auto* track = track_pool_[T::type].template alloc<T>();
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track->init();
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return track;
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}
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template<typename T, typename ...Args>
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auto alloc_track(Args&&... args) -> T* {
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auto* track = track_pool_[T::type].template alloc<T>(std::forward<Args>(args)...);
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track->init();
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return track;
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}
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void free_track(mixer_track* track) {
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track_pool_[track->get_type()].free(track);
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}
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void thread_register_track(mixer_track* track);
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void thread_remove_track(mixer_track* track);
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void build_process_node();
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void update_taskflow(uint32_t in_frames);
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void update_tasks();
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void update_tasks_immediate();
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void on_mixer_latency_changed();
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std::vector<mixer_track*> tracks_;
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std::unordered_map<mixer_track_type, mempool<>> track_pool_;
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std::vector<tf::Taskflow> taskflow_;
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bool process_node_dirty_ = false;
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};
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DEFINE_SINGLETON_INSTANCE(mixer)
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