void SdlMixerManager::init() {
// Start SDL Audio subsystem
if (SDL_InitSubSystem(SDL_INIT_AUDIO) == -1) {
error("Could not initialize SDL: %s", SDL_GetError());
}
const int maxNameLen = 20;
char sdlDriverName[maxNameLen];
sdlDriverName[0] = '\0';
SDL_AudioDriverName(sdlDriverName, maxNameLen);
debug(1, "Using SDL Audio Driver \"%s\"", sdlDriverName);
// Get the desired audio specs
SDL_AudioSpec desired = getAudioSpec(SAMPLES_PER_SEC);
// Needed as SDL_OpenAudio as of SDL-1.2.14 mutates fields in
// "desired" if used directly.
SDL_AudioSpec fmt = desired;
// Start SDL audio with the desired specs
if (SDL_OpenAudio(&fmt, &_obtained) != 0) {
warning("Could not open audio device: %s", SDL_GetError());
_mixer = new Audio::MixerImpl(g_system, desired.freq);
assert(_mixer);
_mixer->setReady(false);
} else {
debug(1, "Output sample rate: %d Hz", _obtained.freq);
if (_obtained.freq != desired.freq)
warning("SDL mixer output sample rate: %d differs from desired: %d", _obtained.freq, desired.freq);
debug(1, "Output buffer size: %d samples", _obtained.samples);
if (_obtained.samples != desired.samples)
warning("SDL mixer output buffer size: %d differs from desired: %d", _obtained.samples, desired.samples);
if (_obtained.format != desired.format)
warning("SDL mixer sound format: %d differs from desired: %d", _obtained.format, desired.format);
#ifndef __SYMBIAN32__
// The SymbianSdlMixerManager does stereo->mono downmixing,
// but otherwise we require stereo output.
if (_obtained.channels != 2)
error("SDL mixer output requires stereo output device");
#endif
_mixer = new Audio::MixerImpl(g_system, _obtained.freq);
assert(_mixer);
_mixer->setReady(true);
startAudio();
}
}
void SdlMixerManager::init() {
// Start SDL Audio subsystem
if (SDL_InitSubSystem(SDL_INIT_AUDIO) == -1) {
error("Could not initialize SDL: %s", SDL_GetError());
}
#if SDL_VERSION_ATLEAST(2, 0, 0)
const char *sdlDriverName = SDL_GetCurrentAudioDriver();
#else
const int maxNameLen = 20;
char sdlDriverName[maxNameLen];
sdlDriverName[0] = '\0';
SDL_AudioDriverName(sdlDriverName, maxNameLen);
#endif
debug(1, "Using SDL Audio Driver \"%s\"", sdlDriverName);
// Get the desired audio specs
SDL_AudioSpec desired = getAudioSpec(SAMPLES_PER_SEC);
// Needed as SDL_OpenAudio as of SDL-1.2.14 mutates fields in
// "desired" if used directly.
SDL_AudioSpec fmt = desired;
// Start SDL audio with the desired specs
if (SDL_OpenAudio(&fmt, &_obtained) != 0) {
warning("Could not open audio device: %s", SDL_GetError());
// The mixer is not marked as ready
_mixer = new Audio::MixerImpl(g_system, desired.freq);
return;
}
// The obtained sample format is not supported by the mixer, call
// SDL_OpenAudio again with NULL as the second argument to force
// SDL to do resampling to the desired audio spec.
if (_obtained.format != desired.format) {
debug(1, "SDL mixer sound format: %d differs from desired: %d", _obtained.format, desired.format);
SDL_CloseAudio();
if (SDL_OpenAudio(&fmt, NULL) != 0) {
warning("Could not open audio device: %s", SDL_GetError());
// The mixer is not marked as ready
_mixer = new Audio::MixerImpl(g_system, desired.freq);
return;
}
_obtained = desired;
}
debug(1, "Output sample rate: %d Hz", _obtained.freq);
if (_obtained.freq != desired.freq)
debug(1, "SDL mixer output sample rate: %d differs from desired: %d", _obtained.freq, desired.freq);
debug(1, "Output buffer size: %d samples", _obtained.samples);
if (_obtained.samples != desired.samples)
debug(1, "SDL mixer output buffer size: %d differs from desired: %d", _obtained.samples, desired.samples);
#ifndef __SYMBIAN32__
// The SymbianSdlMixerManager does stereo->mono downmixing,
// but otherwise we require stereo output.
if (_obtained.channels != 2)
error("SDL mixer output requires stereo output device");
#endif
_mixer = new Audio::MixerImpl(g_system, _obtained.freq);
assert(_mixer);
_mixer->setReady(true);
startAudio();
}
