int SD_GetChannelForDigi(int which)
{
int channel;
if(DigiChannel[which] != -1)
return DigiChannel[which];
channel = Mix_GroupAvailable(1);
if(channel == -1)
channel = Mix_GroupOldest(1);
if(channel == -1) /* All sounds stopped in the meantime? */
return Mix_GroupAvailable(1);
return channel;
}
/**
* Sets the button as the pressed button if it's part of a group.
* @param action Pointer to an action.
* @param state State that the action handlers belong to.
*/
void TextButton::mousePress(Action *action, State *state)
{
if (action->getDetails()->button.button == SDL_BUTTON_LEFT && _group != 0)
{
TextButton *old = *_group;
*_group = this;
if (old != 0)
old->draw();
draw();
}
if (isButtonHandled(action->getDetails()->button.button))
{
if (soundPress != 0 && _group == 0 &&
action->getDetails()->button.button != SDL_BUTTON_WHEELUP && action->getDetails()->button.button != SDL_BUTTON_WHEELDOWN)
{
soundPress->play(Mix_GroupAvailable(0));
}
if (_comboBox)
{
_comboBox->toggle();
}
draw();
//_redraw = true;
}
InteractiveSurface::mousePress(action, state);
}
/**
* Plays the window popup animation.
*/
void Window::popup()
{
if (AreSame(_popupStep, 0.0))
{
int sound = SDL_GetTicks() % 3; // this is a hack to avoid calling RNG::generate(0, 2) and skewing our seed.
if (soundPopup[sound] != 0)
{
soundPopup[sound]->play(Mix_GroupAvailable(0));
}
}
if (_popupStep < 1.0)
{
_popupStep += POPUP_SPEED;
}
else
{
if (_screen)
{
_state->toggleScreen();
}
_state->showAll();
_popupStep = 1.0;
_timer->stop();
}
_redraw = true;
}
/**
* @brief Plays a sound in a group.
*
* @param group Group to play sound in.
* @param sound Sound to play.
* @param once Whether to play only once.
* @return 0 on success.
*/
int sound_mix_playGroup( int group, alSound *s, int once )
{
int ret, channel;
/* Get the channel. */
channel = Mix_GroupAvailable(group);
if (channel == -1) {
channel = Mix_GroupOldest(group);
if (channel == -1) {
WARN("Group '%d' has no free channels!", group);
return -1;
}
}
/* Play the sound. */
ret = Mix_PlayChannel( channel, s->u.mix.buf, (once == 0) ? -1 : 0 );
if (ret < 0) {
WARN("Unable to play sound %s for group %d: %s",
s->name, group, Mix_GetError());
return -1;
}
else
Mix_Volume( channel, sound_mixVolume );
return 0;
}
/** Start a compressed sound channel */
static glui32 play_compressed(schanid_t chan, char *ext)
{
SDL_LockAudio();
chan->status = CHANNEL_SOUND;
chan->buffered = 1;
chan->sdl_channel = Mix_GroupAvailable(FREE);
Mix_GroupChannel(chan->sdl_channel, BUSY);
SDL_UnlockAudio();
chan->decode = Sound_NewSample(chan->sdl_rwops, ext, output, 65536);
Uint32 soundbytes = Sound_Decode(chan->decode);
Sound_Sample *sample = chan->decode;
chan->sample = Mix_QuickLoad_RAW(sample->buffer, soundbytes);
if (chan->sdl_channel < 0)
gli_strict_warning("No available sound channels");
if (chan->sdl_channel >= 0 && chan->sample)
{
SDL_LockAudio();
sound_channels[chan->sdl_channel] = chan;
SDL_UnlockAudio();
Mix_Volume(chan->sdl_channel, chan->volume);
Mix_ChannelFinished(&sound_completion_callback);
if (Mix_PlayChannel(chan->sdl_channel, chan->sample, 0) >= 0)
return 1;
}
gli_strict_warning("play sound failed");
gli_strict_warning(Mix_GetError());
SDL_LockAudio();
cleanup_channel(chan);
SDL_UnlockAudio();
return 0;
}
/** Start a sound channel */
static glui32 play_sound(schanid_t chan)
{
SDL_LockAudio();
chan->status = CHANNEL_SOUND;
chan->buffered = 0;
chan->sdl_channel = Mix_GroupAvailable(FREE);
Mix_GroupChannel(chan->sdl_channel, BUSY);
SDL_UnlockAudio();
chan->sample = Mix_LoadWAV_RW(chan->sdl_rwops, FALSE);
if (chan->sdl_channel < 0)
{
gli_strict_warning("No available sound channels");
}
if (chan->sdl_channel >= 0 && chan->sample)
{
SDL_LockAudio();
sound_channels[chan->sdl_channel] = chan;
SDL_UnlockAudio();
Mix_Volume(chan->sdl_channel, chan->volume);
Mix_ChannelFinished(&sound_completion_callback);
if (Mix_PlayChannel(chan->sdl_channel, chan->sample, chan->loop-1) >= 0)
return 1;
}
gli_strict_warning("play sound failed");
gli_strict_warning(Mix_GetError());
SDL_LockAudio();
cleanup_channel(chan);
SDL_UnlockAudio();
return 0;
}
/* Play the sound, fading in, repeating, and stopping as specified.
* fade_in and stop_after are in milliseconds!
*/
static int _rg_sound_play( RG_Sound *sound,
int fade_in, int repeats, int stop_after )
{
/* Open audio if it's not already. Return -1 if it failed. */
if( ensure_open_audio() != 0 )
{
return -1;
}
/* If it's already playing on a channel, stop it first. */
if( _rg_sound_channel_check(sound) )
{
Mix_HaltChannel( sound->channel );
}
/* Find first available channel */
sound->channel = Mix_GroupAvailable(-1);
if( sound->channel == -1 )
{
/* No channels were available, so make one more than there are now.
* (Mix_AllocateChannels(-1) returns the current number of channels)
*/
Mix_AllocateChannels( Mix_AllocateChannels(-1) + 1 );
/* Try again. */
sound->channel = Mix_GroupAvailable(-1);
}
/* Set its volume before we play */
Mix_Volume( sound->channel, (int)(MIX_MAX_VOLUME * sound->volume) );
if( fade_in <= 0 )
{
/* Play sound without fading in */
return Mix_PlayChannelTimed( sound->channel, sound->wrap->chunk,
repeats, stop_after );
}
else
{
/* Play sound with fading in */
return Mix_FadeInChannelTimed( sound->channel, sound->wrap->chunk,
repeats, fade_in, stop_after );
}
}
int SDLAudio::CHANinGROUP(std::string name)
{
/** Check to see if we've created it */
SListIterator<SGZChanGroup*> GroupListITR = GroupList.GetIterator();
if (name.compare("all")==0) {
return Mix_GroupAvailable(-1);
}
for( GroupListITR.Start(); GroupListITR.Valid(); GroupListITR.Forth() )
if((GroupListITR.Item()->Name.compare(name))==0)
{
return Mix_GroupAvailable(GroupListITR.Item()->groupNum);
}
SGZLogger.warn("AudioMAN: Group \"%s\" doesn't exist!\n", name.c_str());
return 0;
}
/**\brief Retrieves the first available channel.
*/
int Audio::GetFreeChannel( void ){
/**\todo Optimization: We could consider dynamically allocating.*/
// Find first available channel
int foundchan = Mix_GroupAvailable( -1 );
if ( foundchan != -1 )
return foundchan;
// No channels available, halt oldest used one
assert( this->lastplayed.size() != 0 );
Mix_HaltChannel( this->lastplayed.front() );
return this->lastplayed.front();
}
int SD_PlayDigitized(const SoundData &which,int leftpos,int rightpos,SoundChannel chan)
{
if (!DigiMode)
return 0;
// If this sound has been played too recently, don't play it again.
// (Fix for extremely loud sounds when one plays over itself too much.)
uint32_t currentTick = SDL_GetTicks();
if (currentTick - SoundInfo.GetLastPlayTick(which) < MIN_TICKS_BETWEEN_DIGI_REPEATS)
return 0;
SoundInfo.SetLastPlayTick(which, currentTick);
int channel = chan;
if(chan == SD_GENERIC)
{
channel = Mix_GroupAvailable(1);
if(channel == -1) channel = Mix_GroupOldest(1);
if(channel == -1) // All sounds stopped in the meantime?
channel = Mix_GroupAvailable(1);
}
SD_SetPosition(channel, leftpos,rightpos);
DigiPlaying = true;
Mix_Chunk *sample = reinterpret_cast<Mix_Chunk*> (which.GetData(SoundData::DIGITAL));
if(sample == NULL)
return 0;
Mix_Volume(channel, static_cast<int> (ceil(128.0*MULTIPLY_VOLUME(SoundVolume))));
if(Mix_PlayChannel(channel, sample, 0) == -1)
{
printf("Unable to play sound: %s\n", Mix_GetError());
return 0;
}
// Return channel + 1 because zero is a valid channel.
return channel + 1;
}
static int lua_Mix_GroupAvailable(State & state){
Stack * stack = state.stack;
int tag = -1;
if (stack->is<LUA_TNUMBER>(1)){
tag = stack->to<int>(1);
}
int result = Mix_GroupAvailable(tag);
if (result >= 0){
stack->push<int>(result);
}else{
stack->push<bool>(false);
}
return 1;
}
/**
* Plays a UI sound for volume preview.
* @param action Pointer to an action.
*/
void OptionsAudioState::slrUiVolumeRelease(Action *)
{
TextButton::soundPress->play(Mix_GroupAvailable(0));
}
void play_sound_internal(const std::string& files, channel_group group, unsigned int repeats,
unsigned int distance, int id, int loop_ticks, int fadein_ticks)
{
if(files.empty() || distance >= DISTANCE_SILENT || !mix_ok) {
return;
}
audio_lock lock;
// find a free channel in the desired group
int channel = Mix_GroupAvailable(group);
if(channel == -1) {
LOG_AUDIO << "All channels dedicated to sound group(" << group << ") are busy, skipping.\n";
return;
}
Mix_Chunk *chunk;
std::string file = pick_one(files);
try {
chunk = load_chunk(file, group);
assert(chunk);
} catch(const chunk_load_exception&) {
return;
}
/*
* This check prevents SDL_Mixer from blowing up on Windows when UI sound is played
* in response to toggling the checkbox which disables sound.
*/
if(group != SOUND_UI) {
Mix_SetDistance(channel, distance);
}
int res;
if(loop_ticks > 0) {
if(fadein_ticks > 0) {
res = Mix_FadeInChannelTimed(channel, chunk, -1, fadein_ticks, loop_ticks);
} else {
res = Mix_PlayChannel(channel, chunk, -1);
}
if(res >= 0) {
Mix_ExpireChannel(channel, loop_ticks);
}
} else {
if(fadein_ticks > 0) {
res = Mix_FadeInChannel(channel, chunk, repeats, fadein_ticks);
} else {
res = Mix_PlayChannel(channel, chunk, repeats);
}
}
if(res < 0) {
ERR_AUDIO << "error playing sound effect: " << Mix_GetError() << std::endl;
//still keep it in the sound cache, in case we want to try again later
return;
}
channel_ids[channel] = id;
//reserve the channel's chunk from being freed, since it is playing
channel_chunks[res] = chunk;
}
/**
* Plays a UI sound for volume preview.
* @param action Pointer to an action.
*/
void OptionsAudioState::slrUiVolumeRelease(Action *)
{
_game->getResourcePack()->getSound("GEO.CAT", 0)->play(Mix_GroupAvailable(0));
}
