void SDLAudioContext::PauseAudio(AudioObject& ao)
{
SDL_LockAudioDevice(m_device);
RemoveAudio(ao);
SDL_UnlockAudioDevice(m_device);
}
void SDLAudioContext::PlayAudio(AudioObject& ao)
{
SDL_LockAudioDevice(m_device);
// This prevents duplicates
RemoveAudio(ao);
m_playingAudio.push_back(&ao);
SDL_UnlockAudioDevice(m_device);
}
void SDLAudioContext::StopAudio(AudioObject& ao)
{
SDL_LockAudioDevice(m_device);
if(RemoveAudio(ao))
{
ao.SetPos(0.0);
}
SDL_UnlockAudioDevice(m_device);
}
void tcDone(void)
{
static bool inprogress;
if (!inprogress) {
inprogress = true;
plDone();
sndDoneFX(); /* achtung */
sndDone();
RemoveAudio();
dbDone();
CloseAnimHandler();
txtDone();
inpCloseAllInputDevs();
gfxDone();
rndDone();
if (setup.CDAudio) {
if (CDRomInstalled) {
CDROM_StopAudioTrack();
CDROM_UnInstall();
}
}
if (StdBuffer1) {
TCFreeMem(StdBuffer1, STD_BUFFER1_SIZE);
}
if (StdBuffer0) {
TCFreeMem(StdBuffer0, STD_BUFFER0_SIZE);
}
if (memGetAllocatedMem()) {
DebugMsg(ERR_DEBUG, ERROR_MODULE_BASE,
"Attention: dirty mem: %ld bytes!!!",
memGetAllocatedMem());
} else {
DebugMsg(ERR_DEBUG, ERROR_MODULE_BASE, "all mem returned to pool");
}
pcErrClose();
SDL_Quit();
}
}
void SDLAudioContext::GenerateSamples(Uint8* streamIn, int streamInLen)
{
size_t streamLen = (size_t)(streamInLen/2);
m_stream.reserve(streamLen);
float* floatStream = *(float**)(&m_stream);
for(size_t i = 0; i < streamLen; i++)
{
floatStream[i] = 0.0f;
}
std::vector<AudioObject*>::iterator it = m_playingAudio.begin();
std::vector<AudioObject*>::iterator end = m_playingAudio.end();
for(; it != end; ++it)
{
if(!(*it)->GenerateSamples(floatStream, streamLen))
{
RemoveAudio(*(*it));
}
}
Sint16* stream = (Sint16*)streamIn;
for(size_t i = 0; i < streamLen; i++)
{
float val = floatStream[i];
if(val > 1.0f)
{
val = 1.0f;
}
else if(val < -1.0f)
{
val = -1.0f;
}
stream[i] = (Sint16)(val * 32767);
}
}
