adv_error soundb_sdl_init(int sound_id, unsigned* rate, adv_bool stereo_flag, double buffer_time)
{
char name[64];
log_std(("sound:sdl: soundb_sdl_init(id:%d, rate:%d, stereo:%d, buffer_time:%g)\n", (unsigned)sound_id, (unsigned)*rate, (int)stereo_flag, (double)buffer_time));
if (!os_internal_sdl_get()) {
error_set("Unsupported without the SDL library.\n");
return -1;
}
if (!sdl_option.initialized) {
soundb_sdl_default();
}
sdl_state.underflow_flag = 0;
sdl_state.fifo_pos = 0;
sdl_state.fifo_mac = 0;
sdl_state.volume = SDL_VOLUME_BASE;
if (SDL_InitSubSystem(SDL_INIT_AUDIO) != 0) {
error_set("Function SDL_InitSubSystem(SDL_INIT_AUDIO) failed, %s.\n", SDL_GetError());
goto err;
}
if (SDL_AudioDriverName(name, sizeof(name))) {
log_std(("sound:sdl: driver %s\n", name));
}
sdl_state.info.freq = *rate;
sdl_state.info.format = AUDIO_S16LSB;
sdl_state.info.channels = stereo_flag ? 2 : 1;
sdl_state.info.samples = sdl_option.samples;
sdl_state.info.callback = soundb_sdl_callback;
sdl_state.info.userdata = &sdl_state;
log_std(("sound:sdl: request fragment size %d [samples]\n", sdl_state.info.samples));
if (SDL_OpenAudio(&sdl_state.info, 0) != 0) {
error_set("Function SDL_OpenAudio(%d, AUDIO_S16LSB, %d, %d) failed, %s.\n", (unsigned)sdl_state.info.freq, (unsigned)sdl_state.info.channels, (unsigned)sdl_state.info.samples, SDL_GetError());
goto err_quit;
}
log_std(("sound:sdl: result fragment size %d [samples], buffer size %d [bytes]\n", sdl_state.info.samples, sdl_state.info.size));
*rate = sdl_state.info.freq;
sdl_state.active_flag = 1;
return 0;
err_quit:
SDL_QuitSubSystem(SDL_INIT_AUDIO);
err:
return -1;
}
adv_error joystickb_sdl_init(int joystickb_id)
{
unsigned i;
log_std(("josytickb:sdl: joystickb_sdl_init(id:%d)\n", joystickb_id));
if (!os_internal_sdl_get()) {
error_set("Unsupported without the SDL library.\n");
return -1;
}
if (SDL_InitSubSystem(SDL_INIT_JOYSTICK) != 0) {
error_set("Function SDL_InitSubSystem(SDL_INIT_JOYSTICK) failed, %s.\n", SDL_GetError());
goto err;
}
SDL_JoystickEventState(SDL_IGNORE);
sdl_state.counter = SDL_NumJoysticks();
if (sdl_state.counter > SDL_JOYSTICK_MAX)
sdl_state.counter = SDL_JOYSTICK_MAX;
if (sdl_state.counter == 0) {
error_set("No joystick found.\n");
goto err_quit;
}
for (i = 0; i < sdl_state.counter; ++i) {
sdl_state.map[i] = SDL_JoystickOpen(i);
if (!sdl_state.map[i]) {
error_set("Function SDL_JoystickOpen(%d) failed, %s.\n", i, SDL_GetError());
goto err_quit;
}
}
return 0;
err_quit:
SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
err:
return -1;
}
