2 #define _MIDI_MAPPER_H 1
4 // MIDIMapper is a class that gets incoming MIDI messages from mixer
5 // controllers (ie., it is not meant to be used with regular instruments)
6 // via MIDIDevice, interprets them according to a device-specific, user-defined
7 // mapping, and calls back into a receiver (typically the MainWindow).
8 // This way, it is possible to control audio functionality using physical
9 // pots and faders instead of the mouse.
21 #include "shared/midi_device.h"
23 class MIDIMappingProto;
25 // Interface for receiving interpreted controller messages.
26 class ControllerReceiver {
28 virtual ~ControllerReceiver() {}
30 // All values are [0.0, 1.0].
31 virtual void set_locut(float value) = 0;
32 virtual void set_limiter_threshold(float value) = 0;
33 virtual void set_makeup_gain(float value) = 0;
35 virtual void set_stereo_width(unsigned bus_idx, float value) = 0;
36 virtual void set_treble(unsigned bus_idx, float value) = 0;
37 virtual void set_mid(unsigned bus_idx, float value) = 0;
38 virtual void set_bass(unsigned bus_idx, float value) = 0;
39 virtual void set_gain(unsigned bus_idx, float value) = 0;
40 virtual void set_compressor_threshold(unsigned bus_idx, float value) = 0;
41 virtual void set_fader(unsigned bus_idx, float value) = 0;
43 virtual void toggle_mute(unsigned bus_idx) = 0;
44 virtual void toggle_locut(unsigned bus_idx) = 0;
45 virtual void toggle_auto_gain_staging(unsigned bus_idx) = 0;
46 virtual void toggle_compressor(unsigned bus_idx) = 0;
47 virtual void clear_peak(unsigned bus_idx) = 0;
48 virtual void toggle_limiter() = 0;
49 virtual void toggle_auto_makeup_gain() = 0;
52 virtual void switch_video_channel(int channel_number) = 0;
53 virtual void apply_transition(int transition_number) = 0;
54 virtual void prev_audio_view() = 0;
55 virtual void next_audio_view() = 0;
56 virtual void begin_new_segment() = 0;
57 virtual void exit() = 0;
59 // Signals to highlight controls to mark them to the user
60 // as MIDI-controllable (or not).
61 virtual void clear_all_highlights() = 0;
63 virtual void highlight_locut(bool highlight) = 0;
64 virtual void highlight_limiter_threshold(bool highlight) = 0;
65 virtual void highlight_makeup_gain(bool highlight) = 0;
67 virtual void highlight_stereo_width(unsigned bus_idx, bool highlight) = 0;
68 virtual void highlight_treble(unsigned bus_idx, bool highlight) = 0;
69 virtual void highlight_mid(unsigned bus_idx, bool highlight) = 0;
70 virtual void highlight_bass(unsigned bus_idx, bool highlight) = 0;
71 virtual void highlight_gain(unsigned bus_idx, bool highlight) = 0;
72 virtual void highlight_compressor_threshold(unsigned bus_idx, bool highlight) = 0;
73 virtual void highlight_fader(unsigned bus_idx, bool highlight) = 0;
75 virtual void highlight_mute(unsigned bus_idx, bool highlight) = 0;
76 virtual void highlight_toggle_locut(unsigned bus_idx, bool highlight) = 0;
77 virtual void highlight_toggle_auto_gain_staging(unsigned bus_idx, bool highlight) = 0;
78 virtual void highlight_toggle_compressor(unsigned bus_idx, bool highlight) = 0;
79 virtual void highlight_clear_peak(unsigned bus_idx, bool highlight) = 0;
80 virtual void highlight_toggle_limiter(bool highlight) = 0;
81 virtual void highlight_toggle_auto_makeup_gain(bool highlight) = 0;
83 // Raw events; used for the editor dialog only.
84 virtual void controller_changed(unsigned controller) = 0;
85 virtual void note_on(unsigned note) = 0;
88 class MIDIMapper : public MIDIReceiver {
90 MIDIMapper(ControllerReceiver *receiver);
91 virtual ~MIDIMapper();
92 void set_midi_mapping(const MIDIMappingProto &new_mapping);
94 const MIDIMappingProto &get_current_mapping() const;
96 // Overwrites and returns the previous value.
97 ControllerReceiver *set_receiver(ControllerReceiver *new_receiver);
99 void refresh_highlights();
100 void refresh_lights();
102 void set_has_peaked(unsigned bus_idx, bool has_peaked)
104 this->has_peaked[bus_idx] = has_peaked;
108 void controller_received(int controller, int value) override;
109 void note_on_received(int note) override;
110 void update_num_subscribers(unsigned num_subscribers) override;
113 void match_controller(int controller, int field_number, int bank_field_number, float value, std::function<void(unsigned, float)> func);
114 void match_button(int note, int field_number, int bank_field_number, std::function<void(unsigned)> func);
115 bool has_active_controller(unsigned bus_idx, int field_number, int bank_field_number); // Also works for buttons.
116 bool bank_mismatch(int bank_field_number);
118 void update_highlights();
120 void update_lights_lock_held();
121 void activate_lights_all_buses(int field_number, std::map<MIDIDevice::LightKey, uint8_t> *active_lights);
123 std::atomic<bool> should_quit{false};
125 std::atomic<bool> has_peaked[MAX_BUSES] {{ false }};
127 mutable std::mutex mu;
128 ControllerReceiver *receiver; // Under <mu>.
129 std::unique_ptr<MIDIMappingProto> mapping_proto; // Under <mu>.
130 int num_controller_banks; // Under <mu>.
131 std::atomic<int> current_controller_bank{0};
132 std::atomic<int> num_subscribed_ports{0};
134 MIDIDevice midi_device;
137 bool load_midi_mapping_from_file(const std::string &filename, MIDIMappingProto *new_mapping);
138 bool save_midi_mapping_to_file(const MIDIMappingProto &mapping_proto, const std::string &filename);
140 #endif // !defined(_MIDI_MAPPER_H)