public OpenALAudio()
{
Instance = this;
m_enableSound = true;
m_soundVolume = 1.0f;
m_enableMusic = true;
m_musicVolume = 1.0f;
// Init context
m_context = new AudioContext();
m_xram = new XRamExtension();
// Create some sources
m_sound = new OpenALSoundSource[NUM_SOUND_SOURCES];
for (int i = 0; i < m_sound.Length; ++i)
{
m_sound[i] = new OpenALSoundSource();
}
m_music = new OpenALMusicPlayback[NUM_MUSIC_SOURCES];
m_custom = new OpenALCustomPlayback[NUM_CUSTOM_SOURCES];
UpdateSoundVolume();
UpdateMusicVolume();
App.CheckOpenALError();
}
internal SoundEffect(string fileName)
{
AudioEngine.EnsureInit();
buffer = AL.GenBuffer();
var error = AL.GetError();
if (error != ALError.NoError)
{
throw new OpenALException(error, "borked generation. ALError: " + error.ToString());
}
XRamExtension XRam = new XRamExtension();
if (XRam.IsInitialized)
XRam.SetBufferMode(1, ref buffer, XRamExtension.XRamStorage.Hardware);
AudioReader sound = new AudioReader(fileName);
var sounddata = sound.ReadToEnd();
AL.BufferData(buffer, sounddata.SoundFormat.SampleFormatAsOpenALFormat, sounddata.Data, sounddata.Data.Length, sounddata.SoundFormat.SampleRate);
error = AL.GetError();
if ( error != ALError.NoError )
{
throw new OpenALException(error, "unable to read " + fileName);
}
_name = Path.GetFileNameWithoutExtension(fileName);
}
internal SoundEffect(string fileName)
{
AudioEngine.EnsureInit();
buffer = AL.GenBuffer();
var error = AL.GetError();
if (error != ALError.NoError)
{
throw new OpenALException(error, "borked generation. ALError: " + error.ToString());
}
XRamExtension XRam = new XRamExtension();
if (XRam.IsInitialized)
{
XRam.SetBufferMode(1, ref buffer, XRamExtension.XRamStorage.Hardware);
}
AudioReader sound = new AudioReader(fileName);
var sounddata = sound.ReadToEnd();
AL.BufferData(buffer, sounddata.SoundFormat.SampleFormatAsOpenALFormat, sounddata.Data, sounddata.Data.Length, sounddata.SoundFormat.SampleRate);
error = AL.GetError();
if (error != ALError.NoError)
{
throw new OpenALException(error, "unable to read " + fileName);
}
_name = Path.GetFileNameWithoutExtension(fileName);
}
public XRamDiagnostic()
{
Trace.WriteLine("--- X-RAM related errors ---");
XRamExtension XRam = new XRamExtension();
if (XRam.IsInitialized)
{
XRamFound = true;
RamTotal = XRam.GetRamSize;
RamFree = XRam.GetRamFree;
uint buffer;
AL.GenBuffer(out buffer);
foreach (XRamExtension.XRamStorage m in storagemodes)
{
bool result = XRam.SetBufferMode(1, ref buffer, m);
BufferModes.Add(m.ToString(), m == XRam.GetBufferMode(ref buffer));
}
AL.DeleteBuffer(ref buffer);
}
else
{
XRamFound = false;
}
}
public void Load(string filename)
{
XRamExtension XRam = new XRamExtension();
if (XRam.IsInitialized)
{
XRam.SetBufferMode(1, ref Buffer, XRamExtension.XRamStorage.Hardware);
}
BinaryReader br = new BinaryReader(File.OpenRead(filename));
byte[] bytes = new byte[1];
if (new string(br.ReadChars(4)) != "caff")
{
throw new Exception("input file not caff");
}
br.ReadBytes(4); // rest of caf file header
cafInfo = new CAFAudioFormat();
do
{
string type = new string(br.ReadChars(4));
long size = BitConverter.ToInt64(br.ReadBytes(8).Reverse().ToArray(), 0);
if (type == "data")
{
bytes = new byte[size];
bytes = br.ReadBytes((int)size);
}
else if (type == "desc")
{
cafInfo.InitWithData(br.ReadBytes((int)size));
}
else
{
br.ReadBytes((int)size);
}
} while (bytes.Length == 1);
br.Close();
IntPtr ptr = System.Runtime.InteropServices.Marshal.AllocHGlobal(bytes.Length);
System.Runtime.InteropServices.Marshal.Copy(bytes, 0, ptr, bytes.Length);
AL.BufferData((uint)Buffer, cafInfo.GetALFormat(), ptr, bytes.Length, (int)cafInfo.mSampleRate);
ALError error = AL.GetError();
if (error != ALError.NoError)
{
// respond to load error etc.
Console.WriteLine("borked buffer load. ALError: " + error.ToString());
}
AL.Source(Source, ALSourcei.Buffer, (int)Buffer); // attach the buffer to a source
}
/// <summary>
/// Initializes the audio manager.
/// </summary>
/// <param name="channels">The number of channels to use.</param>
/// <param name="buffersPerChannel">The number of buffers each channel will contain.</param>
/// <param name="bytesPerBuffer">The number of bytes in each buffer.</param>
/// <param name="launchThread">If true, a separate thread will be launched to handle updating the sound manager.
/// Otherwise, a thread will not be launched and manual calls to Update() will be required.</param>
public AudioManager(int channels, int buffersPerChannel, int bytesPerBuffer, bool launchThread)
{
if (instance != null) throw new Exception("Can't create more than one instances of AudioManager");
if(AudioContext.CurrentContext == null)
new AudioContext();
Efx = new EffectsExtension();
XRam = new XRamExtension();
Init(channels, buffersPerChannel, bytesPerBuffer, launchThread);
}
public static void Init()
{
ac = new AudioContext();
ac.CheckErrors();
ac.MakeCurrent();
eax_sup = ac.SupportsExtension("EAX3.0");
if (eax_sup)
xram = new XRamExtension();
mp3_sup = ac.SupportsExtension("AL_EXT_mp3");
devices = Alc.GetString(IntPtr.Zero, AlcGetStringList.AllDevicesSpecifier);
}
public static void Init()
{
ac = new AudioContext();
ac.CheckErrors();
ac.MakeCurrent();
eax_sup = ac.SupportsExtension("EAX3.0");
if (eax_sup)
{
xram = new XRamExtension();
}
mp3_sup = ac.SupportsExtension("AL_EXT_mp3");
devices = Alc.GetString(IntPtr.Zero, AlcGetStringList.AllDevicesSpecifier);
}
/// <summary>
/// Initializes OpenAL and loads two sound clips.
/// </summary>
public InteractivePlayerForm()
{
// Setup OpenTK audio stuff
AudioContext ac = new AudioContext();
XRamExtension xram = new XRamExtension();
// Load the .ogg files
guitar = new AudioClip("GuitarSample.ogg");
boing = new AudioClip("BoingSample.ogg");
externalClip = null;
InitializeComponent();
}
/// <summary>
/// Initialize the <see cref="SoundSystem"/>.
/// </summary>
/// <param name="bufferSize"></param>
public void Initialize(int bufferSize = DEFAULT_BUFFER_SIZE)
{
if (_context == null)
{
_context = new ALContext();
}
BufferSize = bufferSize;
XRam = new XRamExtension();
Efx = new EffectsExtension();
// Init empty sources
_sources = AL.GenSources(MAXIMUM_NUMBER_OF_SOURCES);
ALChecker.CheckError();
}
static void Main(string[] args)
{
// Setup OpenTK audio stuff
AudioContext ac = new AudioContext();
XRamExtension xram = new XRamExtension();
// Load the .ogg files
string guitarFile = "GuitarSample.ogg";
AudioClip guitarClip = new AudioClip(guitarFile);
string boingFile = "BoingSample.ogg";
AudioClip boingClip = new AudioClip(boingFile);
// Play it. The first time a clip is played, a background thread is
// launched to handle all audio. Playing the clip again or playing
// a new clip will use the already existing thread. To avoid
// threading, construct your own AudioManager.
guitarClip.Play();
// Play the "boing" clip every 2 seconds during the guitar clip
boingClip.Play();
Thread.Sleep(2000);
boingClip.Play();
Thread.Sleep(2000);
boingClip.Play();
Thread.Sleep(2000);
// Finally play some overlapping sounds to demonstrate a sound can
// have more than one instance played at a time.
boingClip.Play();
Thread.Sleep(200);
boingClip.Play();
Thread.Sleep(200);
boingClip.Play();
Thread.Sleep(200);
boingClip.Play();
Thread.Sleep(200);
// Give the last "boing" time to finish
Thread.Sleep(800);
}
static void Main()
{
//string test = "Hydrate-Kenny_Beltrey.ogg";
//AudioFile testFile = new AudioFile(test);
//testFile.Play();
// The 'using' idiom guarantees proper resource cleanup.
// We request 30 UpdateFrame events per second, and unlimited
// RenderFrame events (as fast as the computer can handle). (may change this in the future, or set it as an option)
// Initialize the audio context and xram for sound
AudioContext ac = new AudioContext();
XRamExtension xr = new XRamExtension();
using (GameEngine engine = new GameEngine())
{
engine.Run();
}
}
/// <summary>
/// Ends the execution of the application.
/// </summary>
public static void Terminate()
{
if (renderingThread != null)
{
renderingThread.Abort();
renderingThread = null;
wnd.Exit();
lock (audioBuffers)
{
foreach (KeyValuePair<int, int> Pair in audioSources)
AL.DeleteSource(Pair.Key);
foreach (KeyValuePair<int, bool> Pair in audioBuffers)
AL.DeleteBuffer(Pair.Key);
audioSources.Clear();
audioBuffers.Clear();
}
if (audioContext != null)
{
audioContext.Dispose();
audioContext = null;
xRam = null;
}
Environment.Exit(1);
}
}
public void Load(string filename)
{
XRamExtension XRam = new XRamExtension();
if (XRam.IsInitialized)
XRam.SetBufferMode(1, ref Buffer, XRamExtension.XRamStorage.Hardware);
BinaryReader br = new BinaryReader(File.OpenRead(filename));
byte[] bytes = new byte[1];
if (new string(br.ReadChars(4)) != "caff")
throw new Exception("input file not caff");
br.ReadBytes(4); // rest of caf file header
cafInfo = new CAFAudioFormat();
do {
string type = new string(br.ReadChars(4));
long size = BitConverter.ToInt64(br.ReadBytes(8).Reverse().ToArray(), 0);
if (type == "data")
{
bytes = new byte[size];
bytes = br.ReadBytes((int)size);
}
else if (type == "desc")
{
cafInfo.InitWithData(br.ReadBytes((int)size));
}
else
{
br.ReadBytes((int)size);
}
} while (bytes.Length == 1);
br.Close();
IntPtr ptr = System.Runtime.InteropServices.Marshal.AllocHGlobal(bytes.Length);
System.Runtime.InteropServices.Marshal.Copy(bytes, 0, ptr, bytes.Length);
AL.BufferData((uint)Buffer, cafInfo.GetALFormat(), ptr, bytes.Length, (int)cafInfo.mSampleRate);
ALError error = AL.GetError();
if (error != ALError.NoError)
{
// respond to load error etc.
Console.WriteLine("borked buffer load. ALError: " + error.ToString());
}
AL.Source(Source, ALSourcei.Buffer, (int)Buffer ); // attach the buffer to a source
}
public XRamDiagnostic()
{
Trace.WriteLine("--- X-RAM related errors ---");
XRamExtension XRam = new XRamExtension();
if (XRam.IsInitialized)
{
XRamFound = true;
RamTotal = XRam.GetRamSize;
RamFree = XRam.GetRamFree;
uint buffer;
AL.GenBuffer(out buffer);
foreach (XRamExtension.XRamStorage m in storagemodes)
{
bool result = XRam.SetBufferMode(1, ref buffer, m);
BufferModes.Add(m.ToString(), m == XRam.GetBufferMode(ref buffer));
}
AL.DeleteBuffer(ref buffer);
}
else
XRamFound = false;
}
public Audio(string[] wavFilesNames)
{
AC = new AudioContext();
var XRam = new XRamExtension(); // must be instantiated per used Device if X-Ram is desired.
// reserve n Handles
myBuffers = AL.GenBuffers(wavFilesNames.Length);
mySources = new int[wavFilesNames.Length];
int count = 0;
foreach (string fileName in wavFilesNames)
{
if (XRam.IsInitialized)
{
XRam.SetBufferMode(1, ref myBuffers[count], XRamExtension.XRamStorage.Hardware); // optional
}
// Load a .wav file from disk. See example code at:
// https://github.com/opentk/opentk/blob/develop/Source/Examples/OpenAL/1.1/Playback.cs#L21
int channels, bits_per_sample, sample_rate;
var sound_data = LoadWave(
File.Open(fileName, FileMode.Open),
out channels,
out bits_per_sample,
out sample_rate);
var sound_format =
channels == 1 && bits_per_sample == 8 ? ALFormat.Mono8 :
channels == 1 && bits_per_sample == 16 ? ALFormat.Mono16 :
channels == 2 && bits_per_sample == 8 ? ALFormat.Stereo8 :
channels == 2 && bits_per_sample == 16 ? ALFormat.Stereo16 :
(ALFormat)0; // unknown
AL.BufferData(myBuffers[count], sound_format, sound_data, sound_data.Length, sample_rate);
if (AL.GetError() != ALError.NoError)
{
// respond to load error etc.
}
AL.GenSources(1, out mySources[count]); // gen 1 Source Handles
AL.Source(mySources[count], ALSourcei.Buffer, (int)myBuffers[count]); // attach the buffer to a source
count++;
}
/*
* // Create a sinus waveform through parameters, this currently requires Alut.dll in the application directory
* if (XRam.IsInitialized)
* {
* XRam.SetBufferMode(ref MyBuffers[1], XRamStorage.Hardware); // optional
* }
* MyBuffers[1] = Alut.CreateBufferWaveform(AlutWaveform.Sine, 500f, 42f, 1.5f);
*/
// See next book page how to connect the buffers to sources in order to play them.
// Cleanup on application shutdown
//AL.DeleteBuffers(MyBuffers.Length, MyBuffers); // free previously reserved Handles
//AC.Dispose();
}
public void StartAudioServices()
{
AudioContext ac = new AudioContext();
XRamExtension xram = new XRamExtension();
}
private static void CheckAudioInstalled()
{
if (audioContext == null)
{
audioContext = new AudioContext();
xRam = new XRamExtension();
}
}
