Fixed how note arrays are used.

This commit is contained in:
IBNobody
2016-04-16 22:10:18 -05:00
parent 12a9b2b9ae
commit 45f10b4c4b
5 changed files with 39 additions and 47 deletions

View File

@@ -4,6 +4,9 @@
#include <util/delay.h>
#include "musical_notes.h"
#ifndef AUDIO_H
#define AUDIO_H
typedef union {
uint8_t raw;
struct {
@@ -19,6 +22,16 @@ void audio_off(void);
void play_sample(uint8_t * s, uint16_t l, bool r);
void play_note(double freq, int vol);
void stop_note(double freq);
void stop_all_notes();
void init_notes();
void stop_all_notes(void);
void init_notes(void);
void play_notes(float (*np)[][2], uint8_t n_length, bool n_repeat, float n_rest);
// These macros are used to allow play_notes to play an array of indeterminate
// length. This works around the limitation of C's sizeof operation on pointers.
// The global float array for the song must be used here.
#define NOTE_ARRAY_SIZE(x) ((int)(sizeof(x) / (sizeof(x[0]))))
#define PLAY_NOTE_ARRAY(note_array, note_repeat, note_rest_style) play_notes(&note_array, NOTE_ARRAY_SIZE((note_array)), (note_repeat), (note_rest_style));
#endif