jailers/JailAudioSDL3
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- JA_Init() now prevents bad multi-init

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- [NEW] JA_Quit()
This commit is contained in:
Raimon Zamora
2022-10-07 17:28:20 +02:00
parent 975fcfd81a
commit cb1154cb20
2 changed files with 19 additions and 8 deletions
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26
jail_audio.cpp
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@@ -32,6 +32,7 @@ int JA_freq {48000};
SDL_AudioFormat JA_format {AUDIO_S16};
Uint8 JA_channels {2};
int JA_volume = 128;
SDL_AudioDeviceID sdlAudioDevice = NULL;
void audioCallback(void * userdata, uint8_t * stream, int len) {
SDL_memset(stream, 0, len);
@@ -74,10 +75,17 @@ void JA_Init(const int freq, const SDL_AudioFormat format, const int channels) {
JA_format = format;
JA_channels = channels;
SDL_AudioSpec audioSpec{JA_freq, JA_format, JA_channels, 0, 1024, 0, 0, audioCallback, NULL};
SDL_AudioDeviceID sdlAudioDevice = SDL_OpenAudioDevice(NULL, 0, &audioSpec, NULL, 0);
if (sdlAudioDevice != NULL) SDL_CloseAudioDevice(sdlAudioDevice);
sdlAudioDevice = SDL_OpenAudioDevice(NULL, 0, &audioSpec, NULL, 0);
SDL_PauseAudioDevice(sdlAudioDevice, 0);
}
void JA_Quit() {
SDL_PauseAudioDevice(sdlAudioDevice, 1);
if (sdlAudioDevice != NULL) SDL_CloseAudioDevice(sdlAudioDevice);
sdlAudioDevice = NULL;
}
JA_Music JA_LoadMusic(const char* filename) {
int chan, samplerate;
JA_Music music = new JA_Music_t();
@@ -90,6 +98,7 @@ JA_Music JA_LoadMusic(const char* filename) {
Uint8 *buffer = (Uint8*)malloc(fsize + 1);
fread(buffer, fsize, 1, f);
fclose(f);
music->samples = stb_vorbis_decode_memory(buffer, fsize, &chan, &samplerate, &music->output);
free(buffer);
// [RZC 28/08/22] Abans el descomprimiem mentre el teniem obert
@@ -97,13 +106,14 @@ JA_Music JA_LoadMusic(const char* filename) {
SDL_AudioCVT cvt;
SDL_BuildAudioCVT(&cvt, AUDIO_S16, chan, samplerate, JA_format, JA_channels, JA_freq);
cvt.len = music->samples * chan * 2;
cvt.buf = (Uint8 *) SDL_malloc(cvt.len * cvt.len_mult);
SDL_memcpy(cvt.buf, music->output, cvt.len);
SDL_ConvertAudio(&cvt);
free(music->output);
music->output = (short*)cvt.buf;
if (cvt.needed) {
cvt.len = music->samples * chan * 2;
cvt.buf = (Uint8 *) SDL_malloc(cvt.len * cvt.len_mult);
SDL_memcpy(cvt.buf, music->output, cvt.len);
SDL_ConvertAudio(&cvt);
free(music->output);
music->output = (short*)cvt.buf;
}
music->pos = 0;
music->state = JA_MUSIC_STOPPED;