public static void Initialize()
{
// Populate the device lists
PlaybackDevice.PopulateDeviceList();
if (PlaybackDevice.Devices.Count == 0)
{
throw new AudioException("There are no audio playback devices available");
}
LDEBUG("Available audio playback devices:");
foreach (var dev in PlaybackDevice.Devices)
{
LDEBUG($" {dev.Identifier}");
}
// Open the default playback device
Device = ALC10.alcOpenDevice(PlaybackDevice.Devices[0].Identifier);
ALUtils.CheckALCError();
if (Device == IntPtr.Zero)
{
throw new AudioException("Unable to open default audio playback device");
}
// Create the al context and set it as active
Context = ALC10.alcCreateContext(Device, new int[2] {
0, 0
}); // Two 0s tell OpenAL no special attribs
ALUtils.CheckALCError();
if (Context == IntPtr.Zero)
{
throw new AudioException("Unable to create audio context");
}
ALC10.alcMakeContextCurrent(Context);
ALUtils.CheckALCError();
// Generate audio sources
AL10.alGenSources(MAX_SOURCE_COUNT, s_allSources);
ALUtils.CheckALError("unable to generate audio sources");
foreach (var src in s_allSources)
{
s_availableSources.Push(src);
}
// Report
LINFO("Started OpenAL audio engine.");
LINFO($" Device: {PlaybackDevice.Devices[0].Identifier}.");
}
public static void Shutdown()
{
// Destroy the sources
AL10.alDeleteSources(MAX_SOURCE_COUNT, s_allSources);
ALUtils.CheckALError("unable to free audio sources");
s_availableSources.Clear();
s_usedSources.Clear();
// Destroy the context, and then close the device
ALC10.alcMakeContextCurrent(IntPtr.Zero);
ALUtils.CheckALCError();
ALC10.alcDestroyContext(Context);
ALUtils.CheckALCError();
Context = IntPtr.Zero;
ALC10.alcCloseDevice(Device);
ALUtils.CheckALCError();
Device = IntPtr.Zero;
IsShutdown = true;
// Report
LINFO("Shutdown OpenAL audio engine.");
}