func GenBuffers(numBuffers int) ([]Buffer, error) {
if numBuffers == 0 {
return nil, nil // AL guarantees that 0 will have no effect, so we'll save ourselves the C call
}
buf := make([]Buffer, numBuffers)
C.alGenBuffers(C.ALsizei(C.int(numBuffers)), (*C.ALuint)(unsafe.Pointer(&buf[0]))) // Since a Buffer is a struct{C.ALuint} an array of Buffers is an array of ALuints
if err := GetError(); err != nil {
return nil, err
}
return buf, nil
}
func (s *Sound) LoadPCMData() {
format := 0
if s.Channels > 1 {
switch s.BitsPerSample {
case 8:
format = C.AL_FORMAT_STEREO8
case 16:
format = C.AL_FORMAT_STEREO16
}
} else {
switch s.BitsPerSample {
case 8:
format = C.AL_FORMAT_MONO8
case 16:
format = C.AL_FORMAT_MONO16
}
}
C.alGenBuffers(1, &s.buffer)
C.alBufferData(s.buffer, C.ALenum(format), unsafe.Pointer(&s.Data[0]), C.ALsizei(s.Size), C.ALsizei(s.Frequency))
}
// Not really any different from GenBuffers(1), except it returns a single buffer instead of a slice
func GenBuffer() (buf Buffer, err error) {
C.alGenBuffers(C.ALsizei(C.int(1)), &buf.buffer)
err = GetError()
return
}
func alGenBuffers(n int) []Buffer {
s := make([]Buffer, n)
C.alGenBuffers(C.ALsizei(n), (*C.ALuint)(unsafe.Pointer(&s[0])))
return s
}
func GenBuffers(buffers []Buffer) {
if len(buffers) > 0 {
C.alGenBuffers(C.ALsizei(len(buffers)), (*C.ALuint)(&buffers[0]))
}
}
func GenBuffer() Buffer {
var b C.ALuint
C.alGenBuffers(1, &b)
return Buffer(b)
}