add tuner app (#2429)

* _ * icon
2026-09-11 17:19:29 +00:00 · 2024-12-18 17:06:25 +08:00
parent fff63e056a
commit ead9449609
6 changed files with 499 additions and 4 deletions
@@ -0,0 +1,145 @@
+/*
+ * copyleft 2024 sommermorgentraum
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __UI_TUNER_H__
+#define __UI_TUNER_H__
+
+#include "ui_navigation.hpp"
+#include "ui_receiver.hpp"
+#include "audio.hpp"
+
+namespace ui::external_app::tuner {
+
+struct Instrument {
+    std::string name;
+    struct NoteInfo {
+        uint16_t frequency;
+        audio::Rate sample_rate;  // tune samplerate to allow for freqs
+        int8_t octave_shift;
+        // PP hardware can't handle some extremely low/high frequencies, this indicates how much the freq that were played is shifted up/down,
+        // for example, if shift is -2 and note is A3, it means the real string should play A5 but PP's speaker plays A3
+    };
+    std::map<std::string, NoteInfo> notes;  // this is for fast looking : O(log(n)) ,  usage `auto note = guitar.notes["A4"];`
+};
+
+class TunerView : public View {
+   public:
+    TunerView(NavigationView& nav);
+    ~TunerView();
+    TunerView(const TunerView& other) = delete;
+    TunerView& operator=(const TunerView& other) = delete;
+
+    void focus() override;
+    void update_audio_beep();
+
+    std::string title() const override { return "Tuner"; };
+
+   private:
+    NavigationView& nav_;
+    bool beep{false};
+
+    void update_notes_for_instrument(const Instrument& instrument);
+    void play_change_note();
+    void stop_play();
+    void update_current_note();
+    uint32_t protected_sample_rate(audio::Rate r);
+    void paint(Painter& painter) override;
+
+    uint16_t current_note_frequency{440};
+    audio::Rate current_note_sample_rate{audio::Rate::Hz_12000};
+    int8_t current_note_octave_shift{0};
+    bool current_note_playing{false};
+
+    Labels labels{
+        {{0 * 8, 1 * 16}, "Instrument:", Theme::getInstance()->fg_light->foreground},
+        {{0 * 8, 2 * 16}, "Note:", Theme::getInstance()->fg_light->foreground},
+        {{0 * 8, 3 * 16}, "Note Frequency:", Theme::getInstance()->fg_light->foreground},
+        {{0 * 8, 4 * 16}, "Note Octave Shift:", Theme::getInstance()->fg_light->foreground},
+        {{0 * 8, 5 * 16}, "Volume:", Theme::getInstance()->fg_light->foreground}};
+
+    Text text_note_frequency{
+        {(sizeof("Note Frequency:") + 1) * 8, 3 * 16, screen_width - (sizeof("Note Frequency:") + 1) * 8, 16},
+        "",
+    };
+
+    Text text_note_octave_shift{
+        {(sizeof("Note Octave Shift:") + 1) * 8, 4 * 16, screen_width - (sizeof("Note Octave Shift:") + 1) * 8, 16},
+        "",
+    };
+
+    AudioVolumeField field_volume{
+        {(sizeof("Volume:") + 1) * 8, 5 * 16}};
+
+    // TODO: load list runtime
+    OptionsField options_instrument{
+        {(sizeof("Instrument:") + 1) * 8, 1 * 16},
+        screen_width - (sizeof("Instrument:") + 1) * 8,
+        {{"Guitar", 0},
+         {"Violin", 1},
+         {"Pitch Fork", 2}}};
+
+    OptionsField options_note{
+        {(sizeof("Note:") + 1) * 8, 2 * 16},
+        screen_width - (sizeof("Note:") + 1) * 8,
+        {}};
+
+    NewButton button_play_stop{
+        {0 * 8, 16 * 16, screen_width, screen_height - 16 * 16},
+        {},
+        &bitmap_icon_replay,
+        Theme::getInstance()->fg_red->foreground};
+
+    // TODO: load from file DB
+    const Instrument guitar = {
+        .name = "Folk Guitar",
+        .notes = {
+            {"E2", {165, audio::Rate::Hz_12000, -1}},  // actual: E2, PP speaker: E3
+            {"A2", {110, audio::Rate::Hz_12000, 0}},
+            {"D3", {147, audio::Rate::Hz_12000, 0}},
+            {"G3", {196, audio::Rate::Hz_24000, 0}},
+            {"B3", {247, audio::Rate::Hz_24000, 0}},
+            {"E4", {330, audio::Rate::Hz_24000, 0}}}};
+
+    const Instrument violin = {
+        .name = "Violin 440 Standard, 12ET",
+        .notes = {
+            {"G3", {196, audio::Rate::Hz_12000, 0}},
+            {"D4", {294, audio::Rate::Hz_24000, 0}},
+            {"A4", {440, audio::Rate::Hz_48000, 0}},
+            {"E5", {659, audio::Rate::Hz_48000, 0}}}};
+
+    const Instrument pitch_fork = {// freq copied from flipper app
+                                   .name = "Pitch Fork",
+                                   .notes = {
+                                       {"12ET A4", {440, audio::Rate::Hz_48000, 0}},
+                                       {"Sarti's A4", {436, audio::Rate::Hz_48000, 0}},
+                                       {"1858 A4", {435, audio::Rate::Hz_48000, 0}},
+                                       {"Verdi's A4", {432, audio::Rate::Hz_48000, 0}}}};
+
+    std::map<std::string, Instrument> instruments{
+        {"Guitar", guitar},
+        {"Violin", violin},
+        {"Pitch Fork", pitch_fork}};
+};
+
+}  // namespace ui::external_app::tuner
+
+#endif /*__UI_TUNER_H__*/