public static int GetEnumValue(string enumname)
{
unsafe
{
int length = Encoding.ASCII.GetByteCount(enumname);
byte *chars = stackalloc byte[length];
AlHelper.StringToAnsi(enumname, chars, length);
return(Al.GetEnumValue(chars));
}
}
public static IntPtr GetFunctionPointer(string fname)
{
unsafe
{
int length = Encoding.ASCII.GetByteCount(fname);
byte *chars = stackalloc byte[length];
AlHelper.StringToAnsi(fname, chars, length);
return(new IntPtr(Al.GetProcAddress(chars)));
}
}
public static bool IsExtensionPresent(string extension)
{
unsafe
{
int length = Encoding.ASCII.GetByteCount(extension);
byte *chars = stackalloc byte[length];
AlHelper.StringToAnsi(extension, chars, length);
return(Al.IsExtensionPresent(chars));
}
}
public Device(string name)
: this()
{
unsafe
{
int name_length = name == null ? 0 : Encoding.ASCII.GetByteCount(name);
byte *name_ansi = stackalloc byte[name_length + 1];
AlHelper.StringToAnsi(name, name_ansi, name_length);
name_ansi = name == null ? null : name_ansi;
Handle = Alc.OpenDevice(name_ansi);
if (Handle == IntPtr.Zero)
{
throw new OpenALException(string.Format(
"OpenDevice({0}) failed.", name));
}
}
}
public CaptureDevice(string name, uint frequency, Format format, int buffersize)
: this()
{
unsafe
{
int name_length = name == null ? 0 : Encoding.ASCII.GetByteCount(name);
byte *name_ansi = stackalloc byte[name_length + 1];
AlHelper.StringToAnsi(name, name_ansi, name_length);
name_ansi = name == null ? null : name_ansi;
Handle = Alc.CaptureOpenDevice(name_ansi, frequency, (int)format, buffersize);
if (Handle == IntPtr.Zero)
{
throw new OpenALException(string.Format(
"CaptureOpenDevice({0}, {1}, {2}, {3}) failed.", name, frequency, format, buffersize));
}
}
}