/**
* @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;
}
static mrb_value
mrb_sdl2_mixer_group_oldest(mrb_state *mrb, mrb_value self)
{
mrb_int tag;
mrb_get_args(mrb, "i", &tag);
return mrb_fixnum_value(Mix_GroupOldest(tag));
}
static int lua_Mix_GroupOldest(State & state){
Stack * stack = state.stack;
int tag = -1;
if (stack->is<LUA_TNUMBER>(1)){
tag = stack->to<int>(1);
}
int result = Mix_GroupOldest(tag);
if (result >= 0){
stack->push<int>(result);
}else{
stack->push<bool>(false);
}
return 1;
}
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;
}
int SDLAudio::OldestGROUP(std::string name)
{
/** Check to see if we've created it */
SListIterator<SGZChanGroup*> GroupListITR = GroupList.GetIterator();
for( GroupListITR.Start(); GroupListITR.Valid(); GroupListITR.Forth() )
if((GroupListITR.Item()->Name.compare(name))==0)
{
return Mix_GroupOldest(GroupListITR.Item()->groupNum);
}
SGZLogger.warn("AudioMAN: Group \"%s\" doesn't exist!\n", name.c_str());
return 0;
}
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;
}
