public AudioDevice()
{
_device = ALC10.alcOpenDevice(null); Check();
_context = ALC10.alcCreateContext(_device, new int[0]); Check();
ALC10.alcMakeContextCurrent(_context); Check();
AL10.alGetError(); // Clear error code for subsequent callers
}
internal static void AlAlwaysCheckError(string message = "")
{
var error = AL10.alGetError();
if (error != AL10.AL_NO_ERROR)
{
throw new InvalidOperationException(message + $" ({error})");
}
}
internal static void alCheckError()
{
int error;
error = AL10.alGetError();
if (error != AL10.AL_NO_ERROR)
{
throw new InvalidOperationException("AL error!");
}
}
private void CheckALError()
{
int err = AL10.alGetError();
if (err == AL10.AL_NO_ERROR)
{
return;
}
System.Console.WriteLine("OpenAL Error: {0:X}", err);
}
private void CheckALError()
{
int err = AL10.alGetError();
if (err == AL10.AL_NO_ERROR)
{
return;
}
System.Console.WriteLine("OpenAL Error: " + err.ToString());
}
public static void CheckALError(
string message = null,
[CallerMemberName] string name = "",
[CallerLineNumber] int line = 0
)
{
LastALError = AL10.alGetError();
if (LastALError != AL10.AL_NO_ERROR)
{
string error = GetALErrorString(LastALError);
throw new AudioException($"AL Error ({LastALError}) at [{name}:{line}]: {error} {(String.IsNullOrWhiteSpace(message) ? "" : $"({message})")}");
}
private void CheckALError()
{
int err = AL10.alGetError();
if (err == AL10.AL_NO_ERROR)
{
return;
}
FNALoggerEXT.LogError("OpenAL Error: " + err.ToString("X4"));
#if VERBOSE_AL_DEBUGGING
throw new InvalidOperationException("OpenAL Error!");
#endif
}
private void CheckALError()
{
int err = AL10.alGetError();
if (err == AL10.AL_NO_ERROR)
{
return;
}
System.Console.WriteLine("OpenAL Error: {0:X}", err);
#if VERBOSE_AL_DEBUGGING
throw new InvalidOperationException("OpenAL Error!");
#endif
}
public OpenAlSoundEngine()
{
Console.WriteLine("Using OpenAL sound engine");
if (Game.Settings.Sound.Device != null)
{
Console.WriteLine("Using device `{0}`", Game.Settings.Sound.Device);
}
else
{
Console.WriteLine("Using default device");
}
device = ALC10.alcOpenDevice(Game.Settings.Sound.Device);
if (device == IntPtr.Zero)
{
Console.WriteLine("Failed to open device. Falling back to default");
device = ALC10.alcOpenDevice(null);
if (device == IntPtr.Zero)
{
throw new InvalidOperationException("Can't create OpenAL device");
}
}
var ctx = ALC10.alcCreateContext(device, null);
if (ctx == IntPtr.Zero)
{
throw new InvalidOperationException("Can't create OpenAL context");
}
ALC10.alcMakeContextCurrent(ctx);
for (var i = 0; i < PoolSize; i++)
{
var source = 0U;
AL10.alGenSources(new IntPtr(1), out source);
if (AL10.alGetError() != AL10.AL_NO_ERROR)
{
Log.Write("sound", "Failed generating OpenAL source {0}", i);
return;
}
sourcePool.Add(source, new PoolSlot()
{
IsActive = false
});
}
}
protected static void Check()
{
int error = AL10.alGetError();
switch (error)
{
case AL10.AL_NO_ERROR: return;
case AL10.AL_INVALID_NAME: throw new AudioException("a bad name (ID) was passed to an OpenAL function");
case AL10.AL_INVALID_VALUE: throw new AudioException("an invalid value was passed to an OpenAL function");
case AL10.AL_INVALID_OPERATION: throw new AudioException("the requested operation is not valid");
case AL10.AL_OUT_OF_MEMORY: throw new AudioException("the requested operation resulted in OpenAL running out of memory");
}
}
static string[] QueryDevices(string label, int type)
{
// Clear error bit
AL10.alGetError();
// Returns a null separated list of strings, terminated by two nulls.
var devicesPtr = ALC10.alcGetString(IntPtr.Zero, type);
if (devicesPtr == IntPtr.Zero || AL10.alGetError() != AL10.AL_NO_ERROR)
{
Log.Write("sound", "Failed to query OpenAL device list using {0}", label);
return(new string[0]);
}
var devices = new List <string>();
var buffer = new List <byte>();
var offset = 0;
while (true)
{
var b = Marshal.ReadByte(devicesPtr, offset++);
if (b != 0)
{
buffer.Add(b);
continue;
}
// A null indicates termination of that string, so add that to our list.
devices.Add(Encoding.UTF8.GetString(buffer.ToArray()));
buffer.Clear();
// Two successive nulls indicates the end of the list.
if (Marshal.ReadByte(devicesPtr, offset) == 0)
{
break;
}
}
return(devices.ToArray());
}
static string[] QueryDevices(string label, int type)
{
// Clear error bit
AL10.alGetError();
var devices = new List <string>();
var next = ALC10.alcGetString(IntPtr.Zero, type);
if (next == IntPtr.Zero || AL10.alGetError() != AL10.AL_NO_ERROR)
{
Log.Write("sound", "Failed to query OpenAL device list using {0}", label);
return(new string[] { });
}
do
{
var str = Marshal.PtrToStringAuto(next);
next += UnicodeEncoding.Default.GetByteCount(str) + 1;
devices.Add(str);
} while (Marshal.ReadByte(next) != 0);
return(devices.ToArray());
}
// Simply clears any AL error without reporting it
public static void ClearALError()
{
AL10.alGetError();
}
