mirror of
https://github.com/UberGuidoZ/Flipper.git
synced 2026-09-18 18:11:30 +00:00
Removing FAP files (use FlipC or Official store!)
This commit is contained in:
UberGuidoZ
@@ -0,0 +1,107 @@
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#include "speaker_hal.h"
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#define FURI_HAL_SPEAKER_TIMER TIM16
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#define FURI_HAL_SPEAKER_CHANNEL LL_TIM_CHANNEL_CH1
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#define FURI_HAL_SPEAKER_PRESCALER 500
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void tracker_speaker_play(float frequency, float pwm) {
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uint32_t autoreload = (SystemCoreClock / FURI_HAL_SPEAKER_PRESCALER / frequency) - 1;
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if(autoreload < 2) {
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autoreload = 2;
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} else if(autoreload > UINT16_MAX) {
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autoreload = UINT16_MAX;
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}
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if(pwm < 0) pwm = 0;
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if(pwm > 1) pwm = 1;
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uint32_t compare_value = pwm * autoreload;
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if(compare_value == 0) {
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compare_value = 1;
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}
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if(LL_TIM_OC_GetCompareCH1(FURI_HAL_SPEAKER_TIMER) != compare_value) {
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LL_TIM_OC_SetCompareCH1(FURI_HAL_SPEAKER_TIMER, compare_value);
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}
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if(LL_TIM_GetAutoReload(FURI_HAL_SPEAKER_TIMER) != autoreload) {
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LL_TIM_SetAutoReload(FURI_HAL_SPEAKER_TIMER, autoreload);
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if(LL_TIM_GetCounter(FURI_HAL_SPEAKER_TIMER) > autoreload) {
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LL_TIM_SetCounter(FURI_HAL_SPEAKER_TIMER, 0);
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}
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}
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LL_TIM_EnableAllOutputs(FURI_HAL_SPEAKER_TIMER);
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}
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void tracker_speaker_stop() {
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LL_TIM_DisableAllOutputs(FURI_HAL_SPEAKER_TIMER);
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}
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void tracker_speaker_init() {
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if(furi_hal_speaker_is_mine() || furi_hal_speaker_acquire(30)) {
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furi_hal_speaker_start(200.0f, 0.01f);
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tracker_speaker_stop();
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}
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}
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void tracker_speaker_deinit() {
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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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}
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static FuriHalInterruptISR tracker_isr;
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static void* tracker_isr_context;
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static void tracker_interrupt_cb(void* context) {
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UNUSED(context);
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if(LL_TIM_IsActiveFlag_UPDATE(TIM2)) {
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LL_TIM_ClearFlag_UPDATE(TIM2);
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if(tracker_isr) {
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tracker_isr(tracker_isr_context);
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}
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}
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}
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void tracker_interrupt_init(float freq, FuriHalInterruptISR isr, void* context) {
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tracker_isr = isr;
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tracker_isr_context = context;
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furi_hal_interrupt_set_isr(FuriHalInterruptIdTIM2, tracker_interrupt_cb, NULL);
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LL_TIM_InitTypeDef TIM_InitStruct = {0};
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// Prescaler to get 1kHz clock
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TIM_InitStruct.Prescaler = SystemCoreClock / 1000000 - 1;
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TIM_InitStruct.CounterMode = LL_TIM_COUNTERMODE_UP;
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// Auto reload to get freq Hz interrupt
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TIM_InitStruct.Autoreload = (1000000 / freq) - 1;
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TIM_InitStruct.ClockDivision = LL_TIM_CLOCKDIVISION_DIV1;
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LL_TIM_Init(TIM2, &TIM_InitStruct);
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LL_TIM_EnableIT_UPDATE(TIM2);
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LL_TIM_EnableAllOutputs(TIM2);
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LL_TIM_EnableCounter(TIM2);
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}
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void tracker_interrupt_deinit() {
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FURI_CRITICAL_ENTER();
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LL_TIM_DeInit(TIM2);
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FURI_CRITICAL_EXIT();
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furi_hal_interrupt_set_isr(FuriHalInterruptIdTIM2, NULL, NULL);
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}
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void tracker_debug_init() {
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furi_hal_gpio_init(&gpio_ext_pc3, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
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}
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void tracker_debug_set(bool value) {
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furi_hal_gpio_write(&gpio_ext_pc3, value);
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}
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void tracker_debug_deinit() {
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furi_hal_gpio_init(&gpio_ext_pc3, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
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}
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@@ -0,0 +1,19 @@
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#include <furi_hal.h>
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void tracker_speaker_init();
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void tracker_speaker_deinit();
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void tracker_speaker_play(float frequency, float pwm);
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void tracker_speaker_stop();
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void tracker_interrupt_init(float freq, FuriHalInterruptISR isr, void* context);
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void tracker_interrupt_deinit();
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void tracker_debug_init();
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void tracker_debug_set(bool value);
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void tracker_debug_deinit();
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@@ -0,0 +1,441 @@
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#include "tracker.h"
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#include <stdbool.h>
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#include "speaker_hal.h"
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// SongState song_state = {
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// .tick = 0,
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// .tick_limit = 2,
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// .row = 0,
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// };
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typedef struct {
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uint8_t speed;
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uint8_t depth;
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int8_t direction;
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int8_t value;
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} IntegerOscillator;
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typedef struct {
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float frequency;
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float frequency_target;
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float pwm;
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bool play;
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IntegerOscillator vibrato;
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} ChannelState;
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typedef struct {
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ChannelState* channels;
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uint8_t tick;
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uint8_t tick_limit;
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uint8_t pattern_index;
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uint8_t row_index;
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uint8_t order_list_index;
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} SongState;
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typedef struct {
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uint8_t note;
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uint8_t effect;
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uint8_t data;
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} UnpackedRow;
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struct Tracker {
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const Song* song;
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bool playing;
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TrackerMessageCallback callback;
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void* context;
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SongState song_state;
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};
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static void channels_state_init(ChannelState* channel) {
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channel->frequency = 0;
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channel->frequency_target = FREQUENCY_UNSET;
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channel->pwm = PWM_DEFAULT;
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channel->play = false;
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channel->vibrato.speed = 0;
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channel->vibrato.depth = 0;
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channel->vibrato.direction = 0;
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channel->vibrato.value = 0;
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}
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static void tracker_song_state_init(Tracker* tracker) {
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tracker->song_state.tick = 0;
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tracker->song_state.tick_limit = 2;
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tracker->song_state.row_index = 0;
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tracker->song_state.order_list_index = 0;
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tracker->song_state.pattern_index = tracker->song->order_list[0];
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if(tracker->song_state.channels != NULL) {
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free(tracker->song_state.channels);
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}
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tracker->song_state.channels = malloc(sizeof(ChannelState) * tracker->song->channels_count);
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for(uint8_t i = 0; i < tracker->song->channels_count; i++) {
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channels_state_init(&tracker->song_state.channels[i]);
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}
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}
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static void tracker_song_state_clear(Tracker* tracker) {
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if(tracker->song_state.channels != NULL) {
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free(tracker->song_state.channels);
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tracker->song_state.channels = NULL;
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}
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}
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static uint8_t record_get_note(Row note) {
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return note & ROW_NOTE_MASK;
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}
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static uint8_t record_get_effect(Row note) {
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return (note >> 6) & ROW_EFFECT_MASK;
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}
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static uint8_t record_get_effect_data(Row note) {
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return (note >> 10) & ROW_EFFECT_DATA_MASK;
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}
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#define NOTES_PER_OCT 12
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const float notes_oct[NOTES_PER_OCT] = {
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130.813f,
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138.591f,
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146.832f,
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155.563f,
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164.814f,
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174.614f,
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184.997f,
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195.998f,
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207.652f,
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220.00f,
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233.082f,
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246.942f,
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};
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static float note_to_freq(uint8_t note) {
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if(note == NOTE_NONE) return 0.0f;
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note = note - NOTE_C2;
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uint8_t octave = note / NOTES_PER_OCT;
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uint8_t note_in_oct = note % NOTES_PER_OCT;
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return notes_oct[note_in_oct] * (1 << octave);
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}
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static float frequency_offset_semitones(float frequency, uint8_t semitones) {
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return frequency * (1.0f + ((1.0f / 12.0f) * semitones));
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}
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static float frequency_get_seventh_of_a_semitone(float frequency) {
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return frequency * ((1.0f / 12.0f) / 7.0f);
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}
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static UnpackedRow get_current_row(const Song* song, SongState* song_state, uint8_t channel) {
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const Pattern* pattern = &song->patterns[song_state->pattern_index];
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const Row row = pattern->channels[channel].rows[song_state->row_index];
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return (UnpackedRow){
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.note = record_get_note(row),
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.effect = record_get_effect(row),
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.data = record_get_effect_data(row),
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};
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}
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static int16_t advance_order_and_get_next_pattern_index(const Song* song, SongState* song_state) {
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song_state->order_list_index++;
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if(song_state->order_list_index >= song->order_list_size) {
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return -1;
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} else {
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return song->order_list[song_state->order_list_index];
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}
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}
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typedef struct {
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int16_t pattern;
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int16_t row;
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bool change_pattern;
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bool change_row;
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} Location;
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static void tracker_send_position_message(Tracker* tracker) {
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if(tracker->callback != NULL) {
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tracker->callback(
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(TrackerMessage){
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.type = TrackerPositionChanged,
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.data =
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{
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.position =
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{
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.order_list_index = tracker->song_state.order_list_index,
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.row = tracker->song_state.row_index,
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},
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},
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},
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tracker->context);
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}
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}
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static void tracker_send_end_message(Tracker* tracker) {
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if(tracker->callback != NULL) {
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tracker->callback((TrackerMessage){.type = TrackerEndOfSong}, tracker->context);
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}
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}
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static void advance_to_pattern(Tracker* tracker, Location advance) {
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if(advance.change_pattern) {
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if(advance.pattern < 0 || advance.pattern >= tracker->song->patterns_count) {
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tracker->playing = false;
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tracker_send_end_message(tracker);
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} else {
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tracker->song_state.pattern_index = advance.pattern;
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tracker->song_state.row_index = 0;
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}
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}
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if(advance.change_row) {
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if(advance.row < 0) advance.row = 0;
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if(advance.row >= PATTERN_SIZE) advance.row = PATTERN_SIZE - 1;
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tracker->song_state.row_index = advance.row;
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}
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tracker_send_position_message(tracker);
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}
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static void tracker_interrupt_body(Tracker* tracker) {
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if(!tracker->playing) {
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tracker_speaker_stop();
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return;
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}
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const uint8_t channel_index = 0;
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SongState* song_state = &tracker->song_state;
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ChannelState* channel_state = &song_state->channels[channel_index];
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const Song* song = tracker->song;
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UnpackedRow row = get_current_row(song, song_state, channel_index);
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// load frequency from note at tick 0
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if(song_state->tick == 0) {
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bool invalidate_row = false;
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// handle "on first tick" effects
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if(row.effect == EffectBreakPattern) {
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int16_t next_row_index = row.data;
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int16_t next_pattern_index =
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advance_order_and_get_next_pattern_index(song, song_state);
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advance_to_pattern(
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tracker,
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(Location){
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.pattern = next_pattern_index,
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.row = next_row_index,
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.change_pattern = true,
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.change_row = true,
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});
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invalidate_row = true;
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}
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if(row.effect == EffectJumpToOrder) {
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song_state->order_list_index = row.data;
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int16_t next_pattern_index = song->order_list[song_state->order_list_index];
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advance_to_pattern(
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tracker,
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(Location){
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.pattern = next_pattern_index,
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.change_pattern = true,
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});
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invalidate_row = true;
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}
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// tracker state can be affected by effects
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if(!tracker->playing) {
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tracker_speaker_stop();
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return;
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}
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if(invalidate_row) {
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row = get_current_row(song, song_state, channel_index);
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if(row.effect == EffectSetSpeed) {
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song_state->tick_limit = row.data;
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}
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}
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// handle note effects
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if(row.note == NOTE_OFF) {
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channel_state->play = false;
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} else if((row.note > NOTE_NONE) && (row.note < NOTE_OFF)) {
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channel_state->play = true;
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// reset vibrato
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channel_state->vibrato.speed = 0;
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channel_state->vibrato.depth = 0;
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channel_state->vibrato.value = 0;
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channel_state->vibrato.direction = 0;
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// reset pwm
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channel_state->pwm = PWM_DEFAULT;
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if(row.effect == EffectSlideToNote) {
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channel_state->frequency_target = note_to_freq(row.note);
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} else {
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channel_state->frequency = note_to_freq(row.note);
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channel_state->frequency_target = FREQUENCY_UNSET;
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}
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}
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}
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|
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if(channel_state->play) {
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float frequency, pwm;
|
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if((row.effect == EffectSlideUp || row.effect == EffectSlideDown) &&
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row.data != EFFECT_DATA_NONE) {
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// apply slide effect
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channel_state->frequency += (row.effect == EffectSlideUp ? 1 : -1) * row.data;
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} else if(row.effect == EffectSlideToNote) {
|
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// apply slide to note effect, if target frequency is set
|
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if(channel_state->frequency_target > 0) {
|
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if(channel_state->frequency_target > channel_state->frequency) {
|
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channel_state->frequency += row.data;
|
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if(channel_state->frequency > channel_state->frequency_target) {
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channel_state->frequency = channel_state->frequency_target;
|
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channel_state->frequency_target = FREQUENCY_UNSET;
|
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}
|
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} else if(channel_state->frequency_target < channel_state->frequency) {
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channel_state->frequency -= row.data;
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if(channel_state->frequency < channel_state->frequency_target) {
|
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channel_state->frequency = channel_state->frequency_target;
|
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channel_state->frequency_target = FREQUENCY_UNSET;
|
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}
|
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}
|
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}
|
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}
|
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|
||||
frequency = channel_state->frequency;
|
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pwm = channel_state->pwm;
|
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// apply arpeggio effect
|
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if(row.effect == EffectArpeggio) {
|
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if(row.data != EFFECT_DATA_NONE) {
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if((song_state->tick % 3) == 1) {
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uint8_t note_offset = EFFECT_DATA_GET_X(row.data);
|
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frequency = frequency_offset_semitones(frequency, note_offset);
|
||||
} else if((song_state->tick % 3) == 2) {
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uint8_t note_offset = EFFECT_DATA_GET_Y(row.data);
|
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frequency = frequency_offset_semitones(frequency, note_offset);
|
||||
}
|
||||
}
|
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} else if(row.effect == EffectVibrato) {
|
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// apply vibrato effect, data = speed, depth
|
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uint8_t vibrato_speed = EFFECT_DATA_GET_X(row.data);
|
||||
uint8_t vibrato_depth = EFFECT_DATA_GET_Y(row.data);
|
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|
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// update vibrato parameters if speed or depth is non-zero
|
||||
if(vibrato_speed != 0) channel_state->vibrato.speed = vibrato_speed;
|
||||
if(vibrato_depth != 0) channel_state->vibrato.depth = vibrato_depth;
|
||||
|
||||
// update vibrato value
|
||||
channel_state->vibrato.value +=
|
||||
channel_state->vibrato.direction * channel_state->vibrato.speed;
|
||||
|
||||
// change direction if value is at the limit
|
||||
if(channel_state->vibrato.value > channel_state->vibrato.depth) {
|
||||
channel_state->vibrato.direction = -1;
|
||||
} else if(channel_state->vibrato.value < -channel_state->vibrato.depth) {
|
||||
channel_state->vibrato.direction = 1;
|
||||
} else if(channel_state->vibrato.direction == 0) {
|
||||
// set initial direction, if it is not set
|
||||
channel_state->vibrato.direction = 1;
|
||||
}
|
||||
|
||||
frequency +=
|
||||
(frequency_get_seventh_of_a_semitone(frequency) * channel_state->vibrato.value);
|
||||
} else if(row.effect == EffectPWM) {
|
||||
pwm = (pwm - PWM_MIN) / EFFECT_DATA_1_MAX * row.data + PWM_MIN;
|
||||
}
|
||||
|
||||
tracker_speaker_play(frequency, pwm);
|
||||
} else {
|
||||
tracker_speaker_stop();
|
||||
}
|
||||
|
||||
song_state->tick++;
|
||||
if(song_state->tick >= song_state->tick_limit) {
|
||||
song_state->tick = 0;
|
||||
|
||||
// next note
|
||||
song_state->row_index = (song_state->row_index + 1);
|
||||
|
||||
if(song_state->row_index >= PATTERN_SIZE) {
|
||||
int16_t next_pattern_index =
|
||||
advance_order_and_get_next_pattern_index(song, song_state);
|
||||
advance_to_pattern(
|
||||
tracker,
|
||||
(Location){
|
||||
.pattern = next_pattern_index,
|
||||
.change_pattern = true,
|
||||
});
|
||||
} else {
|
||||
tracker_send_position_message(tracker);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void tracker_interrupt_cb(void* context) {
|
||||
Tracker* tracker = (Tracker*)context;
|
||||
tracker_debug_set(true);
|
||||
tracker_interrupt_body(tracker);
|
||||
tracker_debug_set(false);
|
||||
}
|
||||
|
||||
/*********************************************************************
|
||||
* Tracker Interface
|
||||
*********************************************************************/
|
||||
|
||||
Tracker* tracker_alloc() {
|
||||
Tracker* tracker = malloc(sizeof(Tracker));
|
||||
return tracker;
|
||||
}
|
||||
|
||||
void tracker_free(Tracker* tracker) {
|
||||
tracker_song_state_clear(tracker);
|
||||
free(tracker);
|
||||
}
|
||||
|
||||
void tracker_set_message_callback(Tracker* tracker, TrackerMessageCallback callback, void* context) {
|
||||
furi_check(tracker->playing == false);
|
||||
tracker->callback = callback;
|
||||
tracker->context = context;
|
||||
}
|
||||
|
||||
void tracker_set_song(Tracker* tracker, const Song* song) {
|
||||
furi_check(tracker->playing == false);
|
||||
tracker->song = song;
|
||||
tracker_song_state_init(tracker);
|
||||
}
|
||||
|
||||
void tracker_set_order_index(Tracker* tracker, uint8_t order_index) {
|
||||
furi_check(tracker->playing == false);
|
||||
furi_check(order_index < tracker->song->order_list_size);
|
||||
tracker->song_state.order_list_index = order_index;
|
||||
tracker->song_state.pattern_index = tracker->song->order_list[order_index];
|
||||
}
|
||||
|
||||
void tracker_set_row(Tracker* tracker, uint8_t row) {
|
||||
furi_check(tracker->playing == false);
|
||||
furi_check(row < PATTERN_SIZE);
|
||||
tracker->song_state.row_index = row;
|
||||
}
|
||||
|
||||
void tracker_start(Tracker* tracker) {
|
||||
furi_check(tracker->song != NULL);
|
||||
|
||||
tracker->playing = true;
|
||||
tracker_send_position_message(tracker);
|
||||
tracker_debug_init();
|
||||
tracker_speaker_init();
|
||||
tracker_interrupt_init(tracker->song->ticks_per_second, tracker_interrupt_cb, tracker);
|
||||
}
|
||||
|
||||
void tracker_stop(Tracker* tracker) {
|
||||
tracker_interrupt_deinit();
|
||||
tracker_speaker_deinit();
|
||||
tracker_debug_deinit();
|
||||
|
||||
tracker->playing = false;
|
||||
}
|
||||
@@ -0,0 +1,38 @@
|
||||
#pragma once
|
||||
#include "tracker_notes.h"
|
||||
#include "tracker_song.h"
|
||||
|
||||
typedef enum {
|
||||
TrackerPositionChanged,
|
||||
TrackerEndOfSong,
|
||||
} TrackerMessageType;
|
||||
|
||||
typedef struct {
|
||||
TrackerMessageType type;
|
||||
union tracker_message_data {
|
||||
struct {
|
||||
uint8_t order_list_index;
|
||||
uint8_t row;
|
||||
} position;
|
||||
} data;
|
||||
} TrackerMessage;
|
||||
|
||||
typedef void (*TrackerMessageCallback)(TrackerMessage message, void* context);
|
||||
|
||||
typedef struct Tracker Tracker;
|
||||
|
||||
Tracker* tracker_alloc();
|
||||
|
||||
void tracker_free(Tracker* tracker);
|
||||
|
||||
void tracker_set_message_callback(Tracker* tracker, TrackerMessageCallback callback, void* context);
|
||||
|
||||
void tracker_set_song(Tracker* tracker, const Song* song);
|
||||
|
||||
void tracker_set_order_index(Tracker* tracker, uint8_t order_index);
|
||||
|
||||
void tracker_set_row(Tracker* tracker, uint8_t row);
|
||||
|
||||
void tracker_start(Tracker* tracker);
|
||||
|
||||
void tracker_stop(Tracker* tracker);
|
||||
@@ -0,0 +1,64 @@
|
||||
#pragma once
|
||||
|
||||
#define NOTE_NONE 0
|
||||
#define NOTE_C2 1
|
||||
#define NOTE_Cs2 2
|
||||
#define NOTE_D2 3
|
||||
#define NOTE_Ds2 4
|
||||
#define NOTE_E2 5
|
||||
#define NOTE_F2 6
|
||||
#define NOTE_Fs2 7
|
||||
#define NOTE_G2 8
|
||||
#define NOTE_Gs2 9
|
||||
#define NOTE_A2 10
|
||||
#define NOTE_As2 11
|
||||
#define NOTE_B2 12
|
||||
#define NOTE_C3 13
|
||||
#define NOTE_Cs3 14
|
||||
#define NOTE_D3 15
|
||||
#define NOTE_Ds3 16
|
||||
#define NOTE_E3 17
|
||||
#define NOTE_F3 18
|
||||
#define NOTE_Fs3 19
|
||||
#define NOTE_G3 20
|
||||
#define NOTE_Gs3 21
|
||||
#define NOTE_A3 22
|
||||
#define NOTE_As3 23
|
||||
#define NOTE_B3 24
|
||||
#define NOTE_C4 25
|
||||
#define NOTE_Cs4 26
|
||||
#define NOTE_D4 27
|
||||
#define NOTE_Ds4 28
|
||||
#define NOTE_E4 29
|
||||
#define NOTE_F4 30
|
||||
#define NOTE_Fs4 31
|
||||
#define NOTE_G4 32
|
||||
#define NOTE_Gs4 33
|
||||
#define NOTE_A4 34
|
||||
#define NOTE_As4 35
|
||||
#define NOTE_B4 36
|
||||
#define NOTE_C5 37
|
||||
#define NOTE_Cs5 38
|
||||
#define NOTE_D5 39
|
||||
#define NOTE_Ds5 40
|
||||
#define NOTE_E5 41
|
||||
#define NOTE_F5 42
|
||||
#define NOTE_Fs5 43
|
||||
#define NOTE_G5 44
|
||||
#define NOTE_Gs5 45
|
||||
#define NOTE_A5 46
|
||||
#define NOTE_As5 47
|
||||
#define NOTE_B5 48
|
||||
#define NOTE_C6 49
|
||||
#define NOTE_Cs6 50
|
||||
#define NOTE_D6 51
|
||||
#define NOTE_Ds6 52
|
||||
#define NOTE_E6 53
|
||||
#define NOTE_F6 54
|
||||
#define NOTE_Fs6 55
|
||||
#define NOTE_G6 56
|
||||
#define NOTE_Gs6 57
|
||||
#define NOTE_A6 58
|
||||
#define NOTE_As6 59
|
||||
#define NOTE_B6 60
|
||||
#define NOTE_OFF 63
|
||||
@@ -0,0 +1,109 @@
|
||||
#pragma once
|
||||
#include <stdint.h>
|
||||
|
||||
/**
|
||||
* @brief Row
|
||||
*
|
||||
* AH AL
|
||||
* FEDCBA98 76543210
|
||||
* nnnnnnee eedddddd
|
||||
* -------- --------
|
||||
* nnnnnn = [0] do nothing, [1..60] note number, [61] note off, [62..63] not used
|
||||
* ee ee = [0..F] effect
|
||||
* 111222 = [0..63] or [0..7, 0..7] effect data
|
||||
*/
|
||||
typedef uint16_t Row;
|
||||
|
||||
#define ROW_NOTE_MASK 0x3F
|
||||
#define ROW_EFFECT_MASK 0x0F
|
||||
#define ROW_EFFECT_DATA_MASK 0x3F
|
||||
|
||||
typedef enum {
|
||||
// 0xy, x - first semitones offset, y - second semitones offset. 0 - no offset .. 7 - +7 semitones...
|
||||
// Play the arpeggio chord with three notes. The first note is the base note, the second and third are offset by x and y.
|
||||
// Each note plays one tick.
|
||||
EffectArpeggio = 0x00,
|
||||
|
||||
// 1xx, xx - effect speed, 0 - no effect, 1 - slowest, 0x3F - fastest.
|
||||
// Slide the note pitch up by xx Hz every tick.
|
||||
EffectSlideUp = 0x01,
|
||||
|
||||
// 2xx, xx - effect speed, 0 - no effect, 1 - slowest, 0x3F - fastest.
|
||||
// Slide the note pitch down by xx Hz every tick.
|
||||
EffectSlideDown = 0x02,
|
||||
|
||||
// 3xx, xx - effect speed, 0 - no effect, 1 - slowest, 0x3F - fastest.
|
||||
// Slide the already playing note pitch towards another one by xx Hz every tick.
|
||||
// The note value is saved until the note is playing, so you don't have to repeat the note value to continue sliding.
|
||||
EffectSlideToNote = 0x03,
|
||||
|
||||
// 4xy, x - vibrato speed (0..7), y - vibrato depth (0..7).
|
||||
// Vibrato effect. The pitch of the note increases by x Hz each tick to a positive vibrato depth, then decreases to a negative depth.
|
||||
// Value 1 of depth means 1/7 of a semitone (about 14.28 ct), so value 7 means full semitone.
|
||||
// Note will play without vibrato on the first tick at the beginning of the effect.
|
||||
// Vibrato speed and depth are saved until the note is playing, and will be updated only if they are not zero, so you doesn't have to repeat them every tick.
|
||||
EffectVibrato = 0x04,
|
||||
|
||||
// Effect05 = 0x05,
|
||||
// Effect06 = 0x06,
|
||||
// Effect07 = 0x07,
|
||||
// Effect08 = 0x08,
|
||||
// Effect09 = 0x09,
|
||||
// Effect0A = 0x0A,
|
||||
|
||||
// Bxx, xx - pattern number
|
||||
// Jump to the order xx in the pattern order table at first tick of current row.
|
||||
// So if you want to jump to the pattern after note 4, you should put this effect on the 5th note.
|
||||
EffectJumpToOrder = 0x0B,
|
||||
|
||||
// Cxx, xx - pwm value
|
||||
// Set the PWM value to xx for current row.
|
||||
EffectPWM = 0x0C,
|
||||
|
||||
// Bxx, xx - row number
|
||||
// Jump to the row xx in next pattern at first tick of current row.
|
||||
// So if you want to jump to the pattern after note 4, you should put this effect on the 5th note.
|
||||
EffectBreakPattern = 0x0D,
|
||||
|
||||
// Effect0E = 0x0E,
|
||||
|
||||
// Fxx, xx - song speed, 0 - 1 tick per note, 1 - 2 ticks per note, 0x3F - 64 ticks per note.
|
||||
// Set the speed of the song in terms of ticks per note.
|
||||
// Will be applied at the first tick of current row.
|
||||
EffectSetSpeed = 0x0F,
|
||||
} Effect;
|
||||
|
||||
#define EFFECT_DATA_2(x, y) ((x) | ((y) << 3))
|
||||
#define EFFECT_DATA_GET_X(data) ((data)&0x07)
|
||||
#define EFFECT_DATA_GET_Y(data) (((data) >> 3) & 0x07)
|
||||
#define EFFECT_DATA_NONE 0
|
||||
#define EFFECT_DATA_1_MAX 0x3F
|
||||
#define EFFECT_DATA_2_MAX 0x07
|
||||
|
||||
#define FREQUENCY_UNSET -1.0f
|
||||
|
||||
#define PWM_MIN 0.01f
|
||||
#define PWM_MAX 0.5f
|
||||
#define PWM_DEFAULT PWM_MAX
|
||||
|
||||
#define PATTERN_SIZE 64
|
||||
|
||||
#define ROW_MAKE(note, effect, data) \
|
||||
((Row)(((note)&0x3F) | (((effect)&0xF) << 6) | (((data)&0x3F) << 10)))
|
||||
|
||||
typedef struct {
|
||||
Row rows[PATTERN_SIZE];
|
||||
} Channel;
|
||||
|
||||
typedef struct {
|
||||
Channel* channels;
|
||||
} Pattern;
|
||||
|
||||
typedef struct {
|
||||
uint8_t channels_count;
|
||||
uint8_t patterns_count;
|
||||
Pattern* patterns;
|
||||
uint8_t order_list_size;
|
||||
uint8_t* order_list;
|
||||
uint16_t ticks_per_second;
|
||||
} Song;
|
||||
Reference in New Issue
Block a user