mirror of
https://github.com/DarkFlippers/unleashed-firmware.git
synced 2024-12-25 06:13:14 +03:00
500 lines
13 KiB
C
500 lines
13 KiB
C
#include "music_player_worker.h"
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#include <furi_hal.h>
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#include <furi.h>
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#include <storage/storage.h>
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#include <lib/flipper_format/flipper_format.h>
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#include <m-array.h>
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#define TAG "MusicPlayerWorker"
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#define MUSIC_PLAYER_FILETYPE "Flipper Music Format"
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#define MUSIC_PLAYER_VERSION 0
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#define SEMITONE_PAUSE 0xFF
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#define NOTE_C4 261.63f
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#define NOTE_C4_SEMITONE (4.0f * 12.0f)
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#define TWO_POW_TWELTH_ROOT 1.059463094359f
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typedef struct {
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uint8_t semitone;
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uint8_t duration;
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uint8_t dots;
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} NoteBlock;
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ARRAY_DEF(NoteBlockArray, NoteBlock, M_POD_OPLIST);
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struct MusicPlayerWorker {
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FuriThread* thread;
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bool should_work;
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MusicPlayerWorkerCallback callback;
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void* callback_context;
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float volume;
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uint32_t bpm;
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uint32_t duration;
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uint32_t octave;
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NoteBlockArray_t notes;
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};
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static int32_t music_player_worker_thread_callback(void* context) {
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furi_assert(context);
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MusicPlayerWorker* instance = context;
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NoteBlockArray_it_t it;
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NoteBlockArray_it(it, instance->notes);
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while(instance->should_work) {
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if(NoteBlockArray_end_p(it)) {
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NoteBlockArray_it(it, instance->notes);
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osDelay(10);
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} else {
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NoteBlock* note_block = NoteBlockArray_ref(it);
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float note_from_a4 = (float)note_block->semitone - NOTE_C4_SEMITONE;
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float frequency = NOTE_C4 * powf(TWO_POW_TWELTH_ROOT, note_from_a4);
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float duration =
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60.0 * osKernelGetTickFreq() * 4 / instance->bpm / note_block->duration;
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uint32_t dots = note_block->dots;
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while(dots > 0) {
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duration += duration / 2;
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dots--;
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}
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uint32_t next_tick = furi_hal_get_tick() + duration;
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float volume = instance->volume;
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if(instance->callback) {
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instance->callback(
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note_block->semitone,
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note_block->dots,
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note_block->duration,
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0.0,
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instance->callback_context);
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}
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furi_hal_speaker_stop();
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furi_hal_speaker_start(frequency, volume);
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while(instance->should_work && furi_hal_get_tick() < next_tick) {
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volume *= 1.0000000;
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furi_hal_speaker_set_volume(volume);
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furi_hal_delay_ms(2);
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}
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NoteBlockArray_next(it);
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}
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}
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furi_hal_speaker_stop();
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return 0;
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}
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MusicPlayerWorker* music_player_worker_alloc() {
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MusicPlayerWorker* instance = malloc(sizeof(MusicPlayerWorker));
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NoteBlockArray_init(instance->notes);
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instance->thread = furi_thread_alloc();
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furi_thread_set_name(instance->thread, "MusicPlayerWorker");
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furi_thread_set_stack_size(instance->thread, 1024);
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furi_thread_set_context(instance->thread, instance);
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furi_thread_set_callback(instance->thread, music_player_worker_thread_callback);
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instance->volume = 1.0f;
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return instance;
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}
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void music_player_worker_free(MusicPlayerWorker* instance) {
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furi_assert(instance);
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furi_thread_free(instance->thread);
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NoteBlockArray_clear(instance->notes);
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free(instance);
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}
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static bool is_digit(const char c) {
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return isdigit(c) != 0;
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}
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static bool is_letter(const char c) {
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return islower(c) != 0 || isupper(c) != 0;
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}
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static bool is_space(const char c) {
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return c == ' ' || c == '\t';
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}
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static size_t extract_number(const char* string, uint32_t* number) {
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size_t ret = 0;
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while(is_digit(*string)) {
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*number *= 10;
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*number += (*string - '0');
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string++;
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ret++;
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}
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return ret;
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}
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static size_t extract_dots(const char* string, uint32_t* number) {
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size_t ret = 0;
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while(*string == '.') {
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*number += 1;
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string++;
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ret++;
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}
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return ret;
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}
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static size_t extract_char(const char* string, char* symbol) {
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if(is_letter(*string)) {
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*symbol = *string;
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return 1;
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} else {
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return 0;
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}
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}
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static size_t extract_sharp(const char* string, char* symbol) {
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if(*string == '#' || *string == '_') {
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*symbol = '#';
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return 1;
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} else {
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return 0;
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}
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}
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static size_t skip_till(const char* string, const char symbol) {
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size_t ret = 0;
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while(*string != '\0' && *string != symbol) {
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string++;
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ret++;
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}
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if(*string != symbol) {
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ret = 0;
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}
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return ret;
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}
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static bool music_player_worker_add_note(
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MusicPlayerWorker* instance,
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uint8_t semitone,
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uint8_t duration,
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uint8_t dots) {
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NoteBlock note_block;
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note_block.semitone = semitone;
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note_block.duration = duration;
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note_block.dots = dots;
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NoteBlockArray_push_back(instance->notes, note_block);
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return true;
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}
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static int8_t note_to_semitone(const char note) {
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switch(note) {
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case 'C':
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return 0;
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// C#
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case 'D':
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return 2;
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// D#
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case 'E':
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return 4;
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case 'F':
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return 5;
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// F#
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case 'G':
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return 7;
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// G#
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case 'A':
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return 9;
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// A#
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case 'B':
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return 11;
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default:
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return 0;
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}
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}
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static bool music_player_worker_parse_notes(MusicPlayerWorker* instance, const char* string) {
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const char* cursor = string;
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bool result = true;
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while(*cursor != '\0') {
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if(!is_space(*cursor)) {
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uint32_t duration = 0;
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char note_char = '\0';
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char sharp_char = '\0';
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uint32_t octave = 0;
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uint32_t dots = 0;
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// Parsing
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cursor += extract_number(cursor, &duration);
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cursor += extract_char(cursor, ¬e_char);
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cursor += extract_sharp(cursor, &sharp_char);
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cursor += extract_number(cursor, &octave);
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cursor += extract_dots(cursor, &dots);
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// Post processing
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note_char = toupper(note_char);
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if(!duration) {
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duration = instance->duration;
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}
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if(!octave) {
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octave = instance->octave;
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}
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// Validation
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bool is_valid = true;
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is_valid &= (duration >= 1 && duration <= 128);
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is_valid &= ((note_char >= 'A' && note_char <= 'G') || note_char == 'P');
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is_valid &= (sharp_char == '#' || sharp_char == '\0');
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is_valid &= (octave <= 16);
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is_valid &= (dots <= 16);
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if(!is_valid) {
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FURI_LOG_E(
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TAG,
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"Invalid note: %u%c%c%u.%u",
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duration,
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note_char == '\0' ? '_' : note_char,
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sharp_char == '\0' ? '_' : sharp_char,
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octave,
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dots);
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result = false;
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break;
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}
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// Note to semitones
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uint8_t semitone = 0;
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if(note_char == 'P') {
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semitone = SEMITONE_PAUSE;
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} else {
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semitone += octave * 12;
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semitone += note_to_semitone(note_char);
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semitone += sharp_char == '#' ? 1 : 0;
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}
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if(music_player_worker_add_note(instance, semitone, duration, dots)) {
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FURI_LOG_D(
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TAG,
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"Added note: %c%c%u.%u = %u %u",
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note_char == '\0' ? '_' : note_char,
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sharp_char == '\0' ? '_' : sharp_char,
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octave,
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dots,
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semitone,
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duration);
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} else {
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FURI_LOG_E(
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TAG,
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"Invalid note: %c%c%u.%u = %u %u",
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note_char == '\0' ? '_' : note_char,
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sharp_char == '\0' ? '_' : sharp_char,
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octave,
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dots,
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semitone,
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duration);
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}
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cursor += skip_till(cursor, ',');
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}
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if(*cursor != '\0') cursor++;
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}
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return result;
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}
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bool music_player_worker_load(MusicPlayerWorker* instance, const char* file_path) {
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furi_assert(instance);
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furi_assert(file_path);
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bool ret = false;
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if(strcasestr(file_path, ".fmf")) {
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ret = music_player_worker_load_fmf_from_file(instance, file_path);
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} else {
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ret = music_player_worker_load_rtttl_from_file(instance, file_path);
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}
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return ret;
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}
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bool music_player_worker_load_fmf_from_file(MusicPlayerWorker* instance, const char* file_path) {
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furi_assert(instance);
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furi_assert(file_path);
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bool result = false;
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string_t temp_str;
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string_init(temp_str);
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Storage* storage = furi_record_open("storage");
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FlipperFormat* file = flipper_format_file_alloc(storage);
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do {
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if(!flipper_format_file_open_existing(file, file_path)) break;
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uint32_t version = 0;
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if(!flipper_format_read_header(file, temp_str, &version)) break;
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if(string_cmp_str(temp_str, MUSIC_PLAYER_FILETYPE) || (version != MUSIC_PLAYER_VERSION)) {
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FURI_LOG_E(TAG, "Incorrect file format or version");
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break;
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}
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if(!flipper_format_read_uint32(file, "BPM", &instance->bpm, 1)) {
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FURI_LOG_E(TAG, "BPM is missing");
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break;
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}
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if(!flipper_format_read_uint32(file, "Duration", &instance->duration, 1)) {
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FURI_LOG_E(TAG, "Duration is missing");
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break;
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}
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if(!flipper_format_read_uint32(file, "Octave", &instance->octave, 1)) {
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FURI_LOG_E(TAG, "Octave is missing");
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break;
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}
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if(!flipper_format_read_string(file, "Notes", temp_str)) {
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FURI_LOG_E(TAG, "Notes is missing");
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break;
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}
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if(!music_player_worker_parse_notes(instance, string_get_cstr(temp_str))) {
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break;
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}
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result = true;
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} while(false);
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furi_record_close("storage");
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flipper_format_free(file);
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string_clear(temp_str);
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return result;
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}
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bool music_player_worker_load_rtttl_from_file(MusicPlayerWorker* instance, const char* file_path) {
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furi_assert(instance);
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furi_assert(file_path);
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bool result = false;
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string_t content;
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string_init(content);
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Storage* storage = furi_record_open("storage");
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File* file = storage_file_alloc(storage);
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do {
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if(!storage_file_open(file, file_path, FSAM_READ, FSOM_OPEN_EXISTING)) {
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FURI_LOG_E(TAG, "Unable to open file");
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break;
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};
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uint16_t ret = 0;
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do {
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uint8_t buffer[65] = {0};
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ret = storage_file_read(file, buffer, sizeof(buffer) - 1);
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for(size_t i = 0; i < ret; i++) {
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string_push_back(content, buffer[i]);
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}
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} while(ret > 0);
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string_strim(content);
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if(!string_size(content)) {
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FURI_LOG_E(TAG, "Empty file");
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break;
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}
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if(!music_player_worker_load_rtttl_from_string(instance, string_get_cstr(content))) {
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FURI_LOG_E(TAG, "Invalid file content");
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break;
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}
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result = true;
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} while(0);
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storage_file_free(file);
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furi_record_close("storage");
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string_clear(content);
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return result;
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}
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bool music_player_worker_load_rtttl_from_string(MusicPlayerWorker* instance, const char* string) {
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furi_assert(instance);
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const char* cursor = string;
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// Skip name
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cursor += skip_till(cursor, ':');
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if(*cursor != ':') {
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return false;
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}
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// Duration
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cursor += skip_till(cursor, '=');
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if(*cursor != '=') {
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return false;
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}
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cursor++;
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cursor += extract_number(cursor, &instance->duration);
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// Octave
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cursor += skip_till(cursor, '=');
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if(*cursor != '=') {
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return false;
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}
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cursor++;
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cursor += extract_number(cursor, &instance->octave);
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// BPM
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cursor += skip_till(cursor, '=');
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if(*cursor != '=') {
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return false;
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}
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cursor++;
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cursor += extract_number(cursor, &instance->bpm);
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// Notes
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cursor += skip_till(cursor, ':');
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if(*cursor != ':') {
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return false;
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}
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cursor++;
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if(!music_player_worker_parse_notes(instance, cursor)) {
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return false;
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}
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return true;
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}
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void music_player_worker_set_callback(
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MusicPlayerWorker* instance,
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MusicPlayerWorkerCallback callback,
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void* context) {
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furi_assert(instance);
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instance->callback = callback;
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instance->callback_context = context;
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}
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void music_player_worker_set_volume(MusicPlayerWorker* instance, float volume) {
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furi_assert(instance);
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instance->volume = volume;
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}
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void music_player_worker_start(MusicPlayerWorker* instance) {
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furi_assert(instance);
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furi_assert(instance->should_work == false);
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instance->should_work = true;
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furi_thread_start(instance->thread);
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}
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void music_player_worker_stop(MusicPlayerWorker* instance) {
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furi_assert(instance);
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furi_assert(instance->should_work == true);
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instance->should_work = false;
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furi_thread_join(instance->thread);
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}
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