//
// Poll
//
// Poll the cd audio (used for proceeding to next track automatically)
//
void Poll()
{
if (initialized && driver)
{
U32 status;
// Time to search
if (search && (pollTime <= AIL_ms_count()))
{
// Read the status (this can be slow on some drives)
switch (status = AIL_redbook_status(driver))
{
// Still playing a track
case REDBOOK_PLAYING:
{
U32 curTrack, curPos, end;
// Get current info
curTrack = AIL_redbook_track(driver);
curPos = AIL_redbook_position(driver);
// Some systems will briefly report playing the NEXT track!
if ((curTrack == track) && track && curPos)
{
// Get track info
AIL_redbook_track_info(driver, track, NULL, &end);
// Recalc the scan time
pollTime = AIL_ms_count() + (end - curPos) + POLL_ERROR;
}
break;
}
// Finished playing track
case REDBOOK_STOPPED:
Play(track + 1);
break;
default :
Stop();
break;
}
}
}
}
//
// Play
//
// Play a redbook track (request is wrapped, so returns track number started)
//
U32 Play(U32 newTrack)
{
if (initialized && driver)
{
// Get number of tracks on disc
U32 count = AIL_redbook_tracks(driver);
// Clip track into acceptable range
if ((newTrack > count) || (newTrack < minTrack))
{
newTrack = minTrack;
}
// If we ended up with a valid track number, start it playing
if (newTrack >= 1 && newTrack <= count)
{
U32 start, end;
// Get track info
AIL_redbook_track_info(driver, newTrack, &start, &end);
// Start it playing
AIL_redbook_play(driver, start, end);
// Update our track count
track = newTrack;
// Set next scan to be just past when this track ends
pollTime = AIL_ms_count() + (end - start) + POLL_ERROR;
// We're rockin, so turn on track searching
search = TRUE;
}
else
{
// Probably a data cd
search = FALSE;
// Stop cd playing
Stop();
}
}
return (track);
}
//
// Play3D
//
// Play a record as a 3D sample (TRUE if actually started)
//
Bool Play3D
(
Effect *e, Record *r, S32 vol, U32 owner, F32 priority, S32 loop,
F32 x, F32 y, F32 z, F32 min, F32 max
)
{
ASSERT(e);
ASSERT(r);
// Request a 3D voice
Voice *voice = Request(priority, TRUE, e->GetVoiceIndex());
if (!voice)
{
return (FALSE);
}
ASSERT(voice->flag3D);
// Request the cache data
Cache::Item *item = Cache::Request(r);
if (!item)
{
// Unable to load data
return (FALSE);
}
// Stop any sounds from this owner
if (owner != NO_OWNER)
{
Output::StopByOwner(owner);
}
// The current time
U32 time = AIL_ms_count();
// Are we under the minimum repeat time
if ((time - r->lastUse) < MIN_REPEATTIME)
{
return (FALSE);
}
// Save info about this use
r->lastUse = time;
// Initialise the sound effect data
if (!AIL_set_3D_sample_file(voice->handle3D, item->data))
{
LOG_WARN(("Invalid 3D data '%s' (Require MS Mono Uncompressed PCM WAV)", r->Name()));
r->valid = FALSE;
return (FALSE);
}
// Setup the voice
voice->effect = e;
voice->record = r;
voice->owner = owner;
voice->priority = priority;
// Set the volume
AIL_set_3D_sample_volume(voice->handle3D, vol);
// Set the loop count for this voice
AIL_set_3D_sample_loop_count(voice->handle3D, loop);
// Set the 3D world position
AIL_set_3D_position(voice->handle3D, x, y, z);
// Set the distances for this sample
AIL_set_3D_sample_distances(voice->handle3D, max, min);
// Always face the listener
AIL_set_3D_orientation(voice->handle3D, -x, -y, -z, 0.0F, 1.0F, 0.0F);
// Start the sample playing
AIL_start_3D_sample(voice->handle3D);
return (TRUE);
}
//
// Play2D
//
// Play a record as a 2D sample (TRUE if actually started)
//
Bool Play2D
(
Effect *e, Record *r, S32 vol, U32 owner, F32 priority, S32 loop, S32 pan
)
{
ASSERT(e);
ASSERT(r);
// Request a 2D voice
Voice *voice = Request(priority, FALSE, e->GetVoiceIndex());
if (!voice)
{
return (FALSE);
}
// Request the cache data
Cache::Item *item = Cache::Request(r);
if (!item)
{
// Unable to load data
return (FALSE);
}
// Stop any sounds from this owner
if (owner != NO_OWNER)
{
Output::StopByOwner(owner);
}
// The current time
U32 time = AIL_ms_count();
// Are we under the minimum repeat time
if ((time - r->lastUse) < MIN_REPEATTIME)
{
return (FALSE);
}
// Save info about this use
r->lastUse = time;
// Initialise the voice
AIL_init_sample(voice->handle2D);
// Initialise the sound effect data
if (!AIL_set_sample_file(voice->handle2D, item->data, 0))
{
LOG_WARN(("Ignoring possibly corrupted file '%s'", r->Name()));
r->valid = FALSE;
return (FALSE);
}
// Setup the voice
voice->effect = e;
voice->record = r;
voice->owner = owner;
voice->priority = priority;
// Set the volume
AIL_set_sample_volume(voice->handle2D, vol);
// Set the stereo panning
AIL_set_sample_pan(voice->handle2D, pan);
// Set the loop count for this voice
AIL_set_sample_loop_count(voice->handle2D, loop);
// Start the sample playing
AIL_start_sample(voice->handle2D);
return (TRUE);
}
