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unleashed-firmware/applications/external/metronome/metronome.c
MX 8b8b78d001
Move plugins to external folder
2023-03-15 01:25:18 +03:00

399 lines
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C
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#include <furi.h>
#include <furi_hal.h>
#include <input/input.h>
#include <stdlib.h>
#include <gui/gui.h>
#include <gui/elements.h>
#include <gui/canvas.h>
#include <notification/notification.h>
#include <notification/notification_messages.h>
#include "gui_extensions.h"
#define BPM_STEP_SIZE_FINE 0.5d
#define BPM_STEP_SIZE_COARSE 10.0d
#define BPM_BOUNDARY_LOW 10.0d
#define BPM_BOUNDARY_HIGH 300.0d
#define BEEP_DELAY_MS 50
#define wave_bitmap_left_width 4
#define wave_bitmap_left_height 14
static uint8_t wave_bitmap_left_bits[] =
{0x08, 0x0C, 0x06, 0x06, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x06, 0x06, 0x0C, 0x08};
#define wave_bitmap_right_width 4
#define wave_bitmap_right_height 14
static uint8_t wave_bitmap_right_bits[] =
{0x01, 0x03, 0x06, 0x06, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x06, 0x06, 0x03, 0x01};
typedef enum {
EventTypeTick,
EventTypeKey,
} EventType;
typedef struct {
EventType type;
InputEvent input;
} PluginEvent;
enum OutputMode { Loud, Vibro, Silent };
typedef struct {
double bpm;
bool playing;
int beats_per_bar;
int note_length;
int current_beat;
enum OutputMode output_mode;
FuriTimer* timer;
NotificationApp* notifications;
FuriMutex* mutex;
} MetronomeState;
static void render_callback(Canvas* const canvas, void* ctx) {
furi_assert(ctx);
const MetronomeState* metronome_state = ctx;
furi_mutex_acquire(metronome_state->mutex, FuriWaitForever);
FuriString* tempStr = furi_string_alloc();
canvas_draw_frame(canvas, 0, 0, 128, 64);
canvas_set_font(canvas, FontPrimary);
// draw bars/beat
furi_string_printf(
tempStr, "%d/%d", metronome_state->beats_per_bar, metronome_state->note_length);
canvas_draw_str_aligned(
canvas, 64, 8, AlignCenter, AlignCenter, furi_string_get_cstr(tempStr));
furi_string_reset(tempStr);
// draw BPM value
furi_string_printf(tempStr, "%.2f", metronome_state->bpm);
canvas_set_font(canvas, FontBigNumbers);
canvas_draw_str_aligned(
canvas, 64, 24, AlignCenter, AlignCenter, furi_string_get_cstr(tempStr));
furi_string_reset(tempStr);
// draw volume indicator
// always draw first waves
canvas_draw_xbm(
canvas, 20, 17, wave_bitmap_left_width, wave_bitmap_left_height, wave_bitmap_left_bits);
canvas_draw_xbm(
canvas,
canvas_width(canvas) - 20 - wave_bitmap_right_width,
17,
wave_bitmap_right_width,
wave_bitmap_right_height,
wave_bitmap_right_bits);
if(metronome_state->output_mode < Silent) {
canvas_draw_xbm(
canvas, 16, 17, wave_bitmap_left_width, wave_bitmap_left_height, wave_bitmap_left_bits);
canvas_draw_xbm(
canvas,
canvas_width(canvas) - 16 - wave_bitmap_right_width,
17,
wave_bitmap_right_width,
wave_bitmap_right_height,
wave_bitmap_right_bits);
}
if(metronome_state->output_mode < Vibro) {
canvas_draw_xbm(
canvas, 12, 17, wave_bitmap_left_width, wave_bitmap_left_height, wave_bitmap_left_bits);
canvas_draw_xbm(
canvas,
canvas_width(canvas) - 12 - wave_bitmap_right_width,
17,
wave_bitmap_right_width,
wave_bitmap_right_height,
wave_bitmap_right_bits);
}
// draw button prompts
canvas_set_font(canvas, FontSecondary);
elements_button_left(canvas, "Slow");
elements_button_right(canvas, "Fast");
if(metronome_state->playing) {
elements_button_center(canvas, "Stop ");
} else {
elements_button_center(canvas, "Start");
}
elements_button_top_left(canvas, "Push");
elements_button_top_right(canvas, "Hold");
// draw progress bar
elements_progress_bar(
canvas, 8, 36, 112, (float)metronome_state->current_beat / metronome_state->beats_per_bar);
// cleanup
furi_string_free(tempStr);
furi_mutex_release(metronome_state->mutex);
}
static void input_callback(InputEvent* input_event, FuriMessageQueue* event_queue) {
furi_assert(event_queue);
PluginEvent event = {.type = EventTypeKey, .input = *input_event};
furi_message_queue_put(event_queue, &event, FuriWaitForever);
}
static void timer_callback(void* ctx) {
// this is where we go BEEP!
furi_assert(ctx);
MetronomeState* metronome_state = ctx;
furi_mutex_acquire(metronome_state->mutex, FuriWaitForever);
metronome_state->current_beat++;
if(metronome_state->current_beat > metronome_state->beats_per_bar) {
metronome_state->current_beat = 1;
}
if(metronome_state->current_beat == 1) {
// pronounced beat
notification_message(metronome_state->notifications, &sequence_set_only_red_255);
switch(metronome_state->output_mode) {
case Loud:
if(furi_hal_speaker_acquire(1000)) {
furi_hal_speaker_start(440.0f, 1.0f);
}
break;
case Vibro:
notification_message(metronome_state->notifications, &sequence_set_vibro_on);
break;
case Silent:
break;
}
} else {
// unpronounced beat
notification_message(metronome_state->notifications, &sequence_set_only_green_255);
switch(metronome_state->output_mode) {
case Loud:
if(furi_hal_speaker_acquire(1000)) {
furi_hal_speaker_start(220.0f, 1.0f);
}
break;
case Vibro:
notification_message(metronome_state->notifications, &sequence_set_vibro_on);
break;
case Silent:
break;
}
};
// this is a bit of a kludge... if we are on vibro and unpronounced, stop vibro after half the usual duration
switch(metronome_state->output_mode) {
case Loud:
furi_delay_ms(BEEP_DELAY_MS);
if(furi_hal_speaker_is_mine()) {
furi_hal_speaker_stop();
furi_hal_speaker_release();
}
break;
case Vibro:
if(metronome_state->current_beat == 1) {
furi_delay_ms(BEEP_DELAY_MS);
notification_message(metronome_state->notifications, &sequence_reset_vibro);
} else {
furi_delay_ms((int)BEEP_DELAY_MS / 2);
notification_message(metronome_state->notifications, &sequence_reset_vibro);
furi_delay_ms((int)BEEP_DELAY_MS / 2);
}
break;
case Silent:
break;
}
notification_message(metronome_state->notifications, &sequence_reset_rgb);
furi_mutex_release(metronome_state->mutex);
}
static uint32_t state_to_sleep_ticks(MetronomeState* metronome_state) {
// calculate time between beeps
uint32_t tps = furi_kernel_get_tick_frequency();
double multiplier = 4.0d / metronome_state->note_length;
double bps = (double)metronome_state->bpm / 60;
return (uint32_t)(round(tps / bps) - ((BEEP_DELAY_MS / 1000) * tps)) * multiplier;
}
static void update_timer(MetronomeState* metronome_state) {
if(furi_timer_is_running(metronome_state->timer)) {
furi_timer_stop(metronome_state->timer);
furi_timer_start(metronome_state->timer, state_to_sleep_ticks(metronome_state));
}
}
static void increase_bpm(MetronomeState* metronome_state, double amount) {
metronome_state->bpm += amount;
if(metronome_state->bpm > (double)BPM_BOUNDARY_HIGH) {
metronome_state->bpm = BPM_BOUNDARY_HIGH;
}
update_timer(metronome_state);
}
static void decrease_bpm(MetronomeState* metronome_state, double amount) {
metronome_state->bpm -= amount;
if(metronome_state->bpm < (double)BPM_BOUNDARY_LOW) {
metronome_state->bpm = BPM_BOUNDARY_LOW;
}
update_timer(metronome_state);
}
static void cycle_beats_per_bar(MetronomeState* metronome_state) {
metronome_state->beats_per_bar++;
if(metronome_state->beats_per_bar > metronome_state->note_length) {
metronome_state->beats_per_bar = 1;
}
}
static void cycle_note_length(MetronomeState* metronome_state) {
metronome_state->note_length *= 2;
if(metronome_state->note_length > 16) {
metronome_state->note_length = 2;
metronome_state->beats_per_bar = 1;
}
update_timer(metronome_state);
}
static void cycle_output_mode(MetronomeState* metronome_state) {
metronome_state->output_mode++;
if(metronome_state->output_mode > Silent) {
metronome_state->output_mode = Loud;
}
}
static void metronome_state_init(MetronomeState* const metronome_state) {
metronome_state->bpm = 120.0;
metronome_state->playing = false;
metronome_state->beats_per_bar = 4;
metronome_state->note_length = 4;
metronome_state->current_beat = 0;
metronome_state->output_mode = Loud;
metronome_state->notifications = furi_record_open(RECORD_NOTIFICATION);
}
int32_t metronome_app() {
FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(PluginEvent));
MetronomeState* metronome_state = malloc(sizeof(MetronomeState));
metronome_state_init(metronome_state);
metronome_state->mutex = furi_mutex_alloc(FuriMutexTypeNormal);
if(!metronome_state->mutex) {
FURI_LOG_E("Metronome", "cannot create mutex\r\n");
free(metronome_state);
return 255;
}
// Set system callbacks
ViewPort* view_port = view_port_alloc();
view_port_draw_callback_set(view_port, render_callback, metronome_state);
view_port_input_callback_set(view_port, input_callback, event_queue);
metronome_state->timer =
furi_timer_alloc(timer_callback, FuriTimerTypePeriodic, metronome_state);
// Open GUI and register view_port
Gui* gui = furi_record_open(RECORD_GUI);
gui_add_view_port(gui, view_port, GuiLayerFullscreen);
PluginEvent event;
for(bool processing = true; processing;) {
FuriStatus event_status = furi_message_queue_get(event_queue, &event, 100);
furi_mutex_acquire(metronome_state->mutex, FuriWaitForever);
if(event_status == FuriStatusOk) {
if(event.type == EventTypeKey) {
if(event.input.type == InputTypeShort) {
// push events
switch(event.input.key) {
case InputKeyUp:
cycle_beats_per_bar(metronome_state);
break;
case InputKeyDown:
cycle_output_mode(metronome_state);
break;
case InputKeyRight:
increase_bpm(metronome_state, BPM_STEP_SIZE_FINE);
break;
case InputKeyLeft:
decrease_bpm(metronome_state, BPM_STEP_SIZE_FINE);
break;
case InputKeyOk:
metronome_state->playing = !metronome_state->playing;
if(metronome_state->playing) {
furi_timer_start(
metronome_state->timer, state_to_sleep_ticks(metronome_state));
} else {
furi_timer_stop(metronome_state->timer);
}
break;
case InputKeyBack:
processing = false;
break;
default:
break;
}
} else if(event.input.type == InputTypeLong) {
// hold events
switch(event.input.key) {
case InputKeyUp:
cycle_note_length(metronome_state);
break;
case InputKeyDown:
break;
case InputKeyRight:
increase_bpm(metronome_state, BPM_STEP_SIZE_COARSE);
break;
case InputKeyLeft:
decrease_bpm(metronome_state, BPM_STEP_SIZE_COARSE);
break;
case InputKeyOk:
break;
case InputKeyBack:
processing = false;
break;
default:
break;
}
} else if(event.input.type == InputTypeRepeat) {
// repeat events
switch(event.input.key) {
case InputKeyUp:
break;
case InputKeyDown:
break;
case InputKeyRight:
increase_bpm(metronome_state, BPM_STEP_SIZE_COARSE);
break;
case InputKeyLeft:
decrease_bpm(metronome_state, BPM_STEP_SIZE_COARSE);
break;
case InputKeyOk:
break;
case InputKeyBack:
processing = false;
break;
default:
break;
}
}
}
}
view_port_update(view_port);
furi_mutex_release(metronome_state->mutex);
}
view_port_enabled_set(view_port, false);
gui_remove_view_port(gui, view_port);
furi_record_close(RECORD_GUI);
view_port_free(view_port);
furi_message_queue_free(event_queue);
furi_mutex_free(metronome_state->mutex);
furi_timer_free(metronome_state->timer);
furi_record_close(RECORD_NOTIFICATION);
free(metronome_state);
return 0;
}
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