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386 lines
12 KiB
C
386 lines
12 KiB
C
#include <furi.h>
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#include <furi_hal.h>
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#include <input/input.h>
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#include <m-string.h>
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#include <stdlib.h>
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#include <gui/gui.h>
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#include <gui/elements.h>
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#include <gui/canvas.h>
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#include <notification/notification.h>
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#include <notification/notification_messages.h>
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#include "gui_extensions.h"
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#define BPM_STEP_SIZE_FINE 0.5d
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#define BPM_STEP_SIZE_COARSE 10.0d
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#define BPM_BOUNDARY_LOW 10.0d
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#define BPM_BOUNDARY_HIGH 300.0d
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#define BEEP_DELAY_MS 50
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#define wave_bitmap_left_width 4
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#define wave_bitmap_left_height 14
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static uint8_t wave_bitmap_left_bits[] = {
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0x08, 0x0C, 0x06, 0x06, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x06, 0x06,
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0x0C, 0x08
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};
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#define wave_bitmap_right_width 4
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#define wave_bitmap_right_height 14
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static uint8_t wave_bitmap_right_bits[] = {
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0x01, 0x03, 0x06, 0x06, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x06, 0x06,
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0x03, 0x01
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};
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typedef enum {
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EventTypeTick,
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EventTypeKey,
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} EventType;
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typedef struct {
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EventType type;
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InputEvent input;
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} PluginEvent;
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enum OutputMode {
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Loud,
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Vibro,
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Silent
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};
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typedef struct {
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double bpm;
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bool playing;
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int beats_per_bar;
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int note_length;
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int current_beat;
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enum OutputMode output_mode;
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FuriTimer* timer;
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NotificationApp* notifications;
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} MetronomeState;
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static void render_callback(Canvas* const canvas, void* ctx) {
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const MetronomeState* metronome_state = acquire_mutex((ValueMutex*)ctx, 25);
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if(metronome_state == NULL) {
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return;
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}
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string_t tempStr;
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string_init(tempStr);
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canvas_draw_frame(canvas, 0, 0, 128, 64);
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canvas_set_font(canvas, FontPrimary);
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// draw bars/beat
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string_printf(tempStr, "%d/%d", metronome_state->beats_per_bar, metronome_state->note_length);
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canvas_draw_str_aligned(canvas, 64, 8, AlignCenter, AlignCenter, string_get_cstr(tempStr));
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string_reset(tempStr);
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// draw BPM value
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string_printf(tempStr, "%.2f", metronome_state->bpm);
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canvas_set_font(canvas, FontBigNumbers);
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canvas_draw_str_aligned(canvas, 64, 24, AlignCenter, AlignCenter, string_get_cstr(tempStr));
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string_reset(tempStr);
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// draw volume indicator
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// always draw first waves
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canvas_draw_xbm(canvas, 20, 17, wave_bitmap_left_width, wave_bitmap_left_height, wave_bitmap_left_bits);
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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);
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if (metronome_state->output_mode < Silent) {
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canvas_draw_xbm(canvas, 16, 17, wave_bitmap_left_width, wave_bitmap_left_height, wave_bitmap_left_bits);
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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);
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}
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if (metronome_state->output_mode < Vibro) {
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canvas_draw_xbm(canvas, 12, 17, wave_bitmap_left_width, wave_bitmap_left_height, wave_bitmap_left_bits);
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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);
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}
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// draw button prompts
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canvas_set_font(canvas, FontSecondary);
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elements_button_left(canvas, "Slow");
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elements_button_right(canvas, "Fast");
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if (metronome_state->playing) {
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elements_button_center(canvas, "Stop ");
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} else {
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elements_button_center(canvas, "Start");
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}
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elements_button_top_left(canvas, "Push");
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elements_button_top_right(canvas, "Hold");
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// draw progress bar
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elements_progress_bar(canvas, 8, 36, 112, (float)metronome_state->current_beat/metronome_state->beats_per_bar);
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// cleanup
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string_clear(tempStr);
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release_mutex((ValueMutex*)ctx, metronome_state);
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}
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static void input_callback(InputEvent* input_event, FuriMessageQueue* event_queue) {
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furi_assert(event_queue);
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PluginEvent event = {.type = EventTypeKey, .input = *input_event};
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furi_message_queue_put(event_queue, &event, FuriWaitForever);
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}
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static void timer_callback(void* ctx) {
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// this is where we go BEEP!
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MetronomeState* metronome_state = acquire_mutex((ValueMutex*)ctx, 25);
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metronome_state->current_beat++;
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if (metronome_state->current_beat > metronome_state->beats_per_bar) {
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metronome_state->current_beat = 1;
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}
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if (metronome_state->current_beat == 1) {
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// pronounced beat
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notification_message(metronome_state->notifications, &sequence_set_only_red_255);
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switch(metronome_state->output_mode) {
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case Loud:
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if (furi_hal_speaker_acquire(1000)) {
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furi_hal_speaker_start(440.0f, 1.0f);
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}
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break;
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case Vibro:
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notification_message(metronome_state->notifications, &sequence_set_vibro_on);
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break;
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case Silent:
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break;
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}
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} else {
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// unpronounced beat
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notification_message(metronome_state->notifications, &sequence_set_only_green_255);
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switch(metronome_state->output_mode) {
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case Loud:
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if (furi_hal_speaker_acquire(1000)) {
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furi_hal_speaker_start(220.0f, 1.0f);
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}
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break;
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case Vibro:
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notification_message(metronome_state->notifications, &sequence_set_vibro_on);
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break;
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case Silent:
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break;
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}
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};
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// this is a bit of a kludge... if we are on vibro and unpronounced, stop vibro after half the usual duration
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switch(metronome_state->output_mode) {
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case Loud:
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furi_delay_ms(BEEP_DELAY_MS);
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if (furi_hal_speaker_is_mine()) {
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furi_hal_speaker_stop();
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furi_hal_speaker_release();
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}
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break;
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case Vibro:
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if (metronome_state->current_beat == 1) {
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furi_delay_ms(BEEP_DELAY_MS);
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notification_message(metronome_state->notifications, &sequence_reset_vibro);
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} else {
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furi_delay_ms((int)BEEP_DELAY_MS/2);
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notification_message(metronome_state->notifications, &sequence_reset_vibro);
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furi_delay_ms((int)BEEP_DELAY_MS/2);
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}
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break;
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case Silent:
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break;
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}
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notification_message(metronome_state->notifications, &sequence_reset_rgb);
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release_mutex((ValueMutex*)ctx, metronome_state);
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}
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static uint32_t state_to_sleep_ticks(MetronomeState* metronome_state) {
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// calculate time between beeps
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uint32_t tps = furi_kernel_get_tick_frequency();
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double multiplier = 4.0d/metronome_state->note_length;
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double bps = (double)metronome_state->bpm / 60;
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return (uint32_t)(round(tps / bps) - ((BEEP_DELAY_MS/1000)*tps)) * multiplier;
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}
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static void update_timer(MetronomeState* metronome_state) {
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if (furi_timer_is_running(metronome_state->timer)) {
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furi_timer_stop(metronome_state->timer);
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furi_timer_start(
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metronome_state->timer,
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state_to_sleep_ticks(metronome_state)
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);
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}
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}
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static void increase_bpm(MetronomeState* metronome_state, double amount) {
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metronome_state->bpm += amount;
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if(metronome_state->bpm > (double)BPM_BOUNDARY_HIGH) {
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metronome_state->bpm = BPM_BOUNDARY_HIGH;
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}
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update_timer(metronome_state);
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}
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static void decrease_bpm(MetronomeState* metronome_state, double amount) {
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metronome_state->bpm -= amount;
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if(metronome_state->bpm < (double)BPM_BOUNDARY_LOW) {
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metronome_state->bpm = BPM_BOUNDARY_LOW;
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}
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update_timer(metronome_state);
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}
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static void cycle_beats_per_bar(MetronomeState* metronome_state) {
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metronome_state->beats_per_bar++;
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if (metronome_state->beats_per_bar > metronome_state->note_length) {
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metronome_state->beats_per_bar = 1;
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}
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}
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static void cycle_note_length(MetronomeState* metronome_state) {
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metronome_state->note_length *= 2;
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if (metronome_state->note_length > 16) {
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metronome_state->note_length = 2;
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metronome_state->beats_per_bar = 1;
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}
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update_timer(metronome_state);
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}
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static void cycle_output_mode(MetronomeState* metronome_state) {
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metronome_state->output_mode++;
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if (metronome_state->output_mode > Silent) {
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metronome_state->output_mode = Loud;
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}
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}
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static void metronome_state_init(MetronomeState* const metronome_state) {
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metronome_state->bpm = 120.0;
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metronome_state->playing = false;
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metronome_state->beats_per_bar = 4;
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metronome_state->note_length = 4;
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metronome_state->current_beat = 0;
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metronome_state->output_mode = Loud;
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metronome_state->notifications = furi_record_open(RECORD_NOTIFICATION);
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}
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int32_t metronome_app() {
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FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(PluginEvent));
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MetronomeState* metronome_state = malloc(sizeof(MetronomeState));
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metronome_state_init(metronome_state);
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ValueMutex state_mutex;
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if(!init_mutex(&state_mutex, metronome_state, sizeof(MetronomeState))) {
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FURI_LOG_E("Metronome", "cannot create mutex\r\n");
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free(metronome_state);
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return 255;
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}
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// Set system callbacks
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ViewPort* view_port = view_port_alloc();
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view_port_draw_callback_set(view_port, render_callback, &state_mutex);
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view_port_input_callback_set(view_port, input_callback, event_queue);
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metronome_state->timer = furi_timer_alloc(timer_callback, FuriTimerTypePeriodic, &state_mutex);
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// Open GUI and register view_port
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//
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Gui* gui = furi_record_open("gui");
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gui_add_view_port(gui, view_port, GuiLayerFullscreen);
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PluginEvent event;
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for(bool processing = true; processing;) {
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FuriStatus event_status = furi_message_queue_get(event_queue, &event, 100);
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MetronomeState* metronome_state = (MetronomeState*)acquire_mutex_block(&state_mutex);
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if(event_status == FuriStatusOk) {
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if(event.type == EventTypeKey) {
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if(event.input.type == InputTypeShort) {
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// push events
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switch(event.input.key) {
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case InputKeyUp:
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cycle_beats_per_bar(metronome_state);
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break;
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case InputKeyDown:
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cycle_output_mode(metronome_state);
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break;
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case InputKeyRight:
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increase_bpm(metronome_state, BPM_STEP_SIZE_FINE);
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break;
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case InputKeyLeft:
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decrease_bpm(metronome_state, BPM_STEP_SIZE_FINE);
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break;
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case InputKeyOk:
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metronome_state->playing = !metronome_state->playing;
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if (metronome_state->playing) {
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furi_timer_start(metronome_state->timer, state_to_sleep_ticks(metronome_state));
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} else {
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furi_timer_stop(metronome_state->timer);
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}
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break;
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case InputKeyBack:
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processing = false;
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break;
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case InputKeyMAX:
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break;
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}
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} else if (event.input.type == InputTypeLong) {
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// hold events
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switch(event.input.key) {
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case InputKeyUp:
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cycle_note_length(metronome_state);
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break;
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case InputKeyDown:
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break;
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case InputKeyRight:
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increase_bpm(metronome_state, BPM_STEP_SIZE_COARSE);
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break;
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case InputKeyLeft:
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decrease_bpm(metronome_state, BPM_STEP_SIZE_COARSE);
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break;
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case InputKeyOk:
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break;
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case InputKeyBack:
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processing = false;
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break;
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case InputKeyMAX:
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break;
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}
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} else if (event.input.type == InputTypeRepeat) {
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// repeat events
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switch(event.input.key) {
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case InputKeyUp:
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break;
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case InputKeyDown:
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break;
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case InputKeyRight:
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increase_bpm(metronome_state, BPM_STEP_SIZE_COARSE);
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break;
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case InputKeyLeft:
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decrease_bpm(metronome_state, BPM_STEP_SIZE_COARSE);
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break;
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case InputKeyOk:
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break;
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case InputKeyBack:
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processing = false;
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break;
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case InputKeyMAX:
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break;
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}
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}
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}
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} else {
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FURI_LOG_D("Metronome", "FuriMessageQueue: event timeout");
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// event timeout
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}
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view_port_update(view_port);
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release_mutex(&state_mutex, metronome_state);
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}
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view_port_enabled_set(view_port, false);
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gui_remove_view_port(gui, view_port);
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furi_record_close("gui");
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view_port_free(view_port);
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furi_message_queue_free(event_queue);
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delete_mutex(&state_mutex);
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furi_timer_free(metronome_state->timer);
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furi_record_close(RECORD_NOTIFICATION);
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free(metronome_state);
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return 0;
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}
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