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;
}
