func initSourceList() {
for i, _ := range sourceList {
C.alGenSources(1, &sourceList[i].id)
sourceList[i].occupied = false
sourceList[i].isPlaying = false
}
sourceChannel = make(chan int)
go func() {
var state C.ALint
for {
select {
case _, ok := <-sourceChannel:
if !ok {
return
}
default:
for i, src := range sourceList {
if sourceList[i].occupied == true && sourceList[i].isPlaying == true {
C.alGetSourcei(src.id, C.AL_SOURCE_STATE, &state)
if state != C.AL_PLAYING {
sourceList[i].occupied = false
sourceList[i].isPlaying = false
}
}
}
}
}
}()
}
func GenSources(numSources int) ([]Source, error) {
if numSources == 0 {
return nil, nil // AL guarantees that 0 will have no effect, so we'll save ourselves the C call
}
buf := make([]Source, numSources)
C.alGenSources(C.ALsizei(C.int(numSources)), (*C.ALuint)(unsafe.Pointer(&buf[0])))
if err := GetError(); err != nil {
return nil, err
}
return buf, nil
}
func alGenSources(n int) []Source {
s := make([]Source, n)
C.alGenSources(C.ALsizei(n), (*C.ALuint)(unsafe.Pointer(&s[0])))
return s
}
func GenSources(sources []Source) {
if len(sources) > 0 {
C.alGenSources(C.ALsizei(len(sources)), (*C.ALuint)(&sources[0]))
}
}
func GenSource() Source {
var b C.ALuint
C.alGenSources(1, &b)
return Source(b)
}
// Not really any different from GenSources(1), except it returns a single buffer instead of a slice
func GenSource() (source Source, err error) {
C.alGenSources(C.ALsizei(C.int(1)), &source.source)
err = GetError()
return
}