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mp3 support for playing background music

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Ondřej Novák 2025-06-15 12:56:18 +02:00
parent 73a4187f79
commit dd23d8c989
24 changed files with 2245 additions and 252 deletions
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31
platform/sdl/sound.cpp
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@ -130,10 +130,10 @@ size_t copy_to_music_buffer(const void *data, size_t data_size) {
}
static const char * (*end_of_song_callback)(void *ctx) = NULL;
static TEND_OF_SONG_CALLBACK end_of_song_callback;
static void *end_of_song_callback_ctx = NULL;
void set_end_of_song_callback(const char * (*cb)(void *), void *ctx) {
void set_end_of_song_callback(TEND_OF_SONG_CALLBACK cb, void *ctx) {
end_of_song_callback = cb;
end_of_song_callback_ctx = ctx;
}
@ -191,9 +191,9 @@ void create_new_music_track(int freq, int buffsize) {
music_buffer_write_pos = buffsize/2;
}
static std::unique_ptr<IMusicStream> load_music_ex(const char *name) {
if (name) {
TMUSIC_STREAM *stream = music_open(name);
static std::unique_ptr<IMusicStream> load_music_ex(const TMUSIC_SOURCE *src, TMUSIC_SOURCE_TYPE type) {
if (src) {
TMUSIC_STREAM *stream = music_open(src, type);
if (stream) {
TMUSIC_STREAM_INFO nfo = music_get_info(stream);
if (nfo.channels != 2) {
@ -212,8 +212,10 @@ static std::unique_ptr<IMusicStream> load_music_ex(const char *name) {
static void handle_end_of_song() {
current_music.reset();
if (end_of_song_callback != NULL) {
const char *new_music = end_of_song_callback(end_of_song_callback_ctx);
current_music = load_music_ex(new_music);
TMUSIC_SOURCE src;
TMUSIC_SOURCE_TYPE type;
char ok = end_of_song_callback(end_of_song_callback_ctx, &src, &type);
current_music = ok?load_music_ex(&src, type):std::unique_ptr<IMusicStream>{};
if (current_music) {
auto nfo = current_music->get_info();
create_new_music_track(nfo.freq, BACK_BUFF_SIZE);
@ -246,13 +248,16 @@ int mix_back_sound(int _) {
}
//int open_backsound(char *filename);
void change_music(const char *filename) {
void stop_play_music() {
if (music_source) {
fade_music();
stop_music();
fade_music();
stop_music();
}
current_music = load_music_ex(filename);
}
void play_music(const TMUSIC_SOURCE *source, TMUSIC_SOURCE_TYPE type) {
stop_play_music();
current_music = load_music_ex(source, type);
if (current_music) {
auto nfo = current_music->get_info();
create_new_music_track(nfo.freq, BACK_BUFF_SIZE);
@ -309,7 +314,7 @@ char set_snd_effect(AUDIO_PROPERTY funct,int data) {
case SND_PING: break;
case SND_GFX: sound_effect_volume = data/256.0;break;
case SND_MUSIC: music_volume = data/128.0;update_music_volume();break;
case SND_GVOLUME: master_volume = data/512.0;update_music_volume();break;
case SND_GVOLUME: master_volume = data/512.0;update_music_volume();break;
case SND_SWAP: swap_channels = !!data;break;
case SND_BASS: bass_boost = data/25.0;sound_mixer.set_bass(bass_boost);break;
case SND_TREBL: treble_boost = data/25.0;sound_mixer.set_treble(treble_boost);break;