protected void CreateSoundBuffer(int sampleRate, double bufferSizeSeconds)
{
// Buffer to use when marshalling the samples from an unmanaged pointer.
// Give it a reasonable initial size, it will be resized dynamically if needed.
_sampleBuffer = new short[4096];
// Setup the directsound buffer description
var format = new WaveFormat(sampleRate, 16, 2);
var buffer = new SoundBufferDescription();
buffer.Flags = BufferFlags.GlobalFocus | BufferFlags.ControlVolume;
buffer.BufferBytes = (int)(format.AverageBytesPerSecond * bufferSizeSeconds);
buffer.Format = format;
buffer.AlgorithmFor3D = Guid.Empty;
// Create a sound buffer with the specified buffer description.
_secondaryBuffer = new SecondarySoundBuffer(_directSound, buffer);
// Get the actual buffer size so we can keep
// track of the current/next write position.
_bufferBytes = _secondaryBuffer.Capabilities.BufferBytes;
// When syncing to audio, we need samples per millisecond to estimate how
// long to sleep for when waiting for enough free space in the playback buffer.
_samplesPerMs = format.AverageBytesPerSecond / (sizeof(short) * 1000d);
}
public override void onTick()
{
if (isFinished())
{
fireDisposeEvent();
return;
}
if (finished && performing)
{
//The weapon is done doing what it needs to do, but a sound is still playing.
//Do not free this weapon until the sound is done playing.
performing = (Hit != null && DSound.isPlaying(Hit)) || (expl != null && DSound.isPlaying(expl));
return;
}
performing = true;
base.onTick();
playSound3d(moveSound, false, false);
if (inFiringRange())
{
moveSound.Stop();
Hit = target.loadSound(target.soundPath + "bsg" + Common.getRandom(3, 4) + ".wav");
target.playSound(Hit, true, false);
fireHitEvent(target, Common.getRandom(100, 200));
finished = true;
return;
}
if (!DSound.isPlaying(moveSound))
{
finished = true;
explode();
performing = (Hit != null && DSound.isPlaying(Hit)) || (expl != null && DSound.isPlaying(expl));
}
}
private void InitialiseDirectSound(IntPtr windowHandle, int sampleRate)
{
var waveFormat = new WaveFormat(sampleRate, 16, 2);
_directSound = new DirectSound();
_directSound.SetCooperativeLevel(windowHandle, CooperativeLevel.Priority);
var primaryBufferDescription = new SoundBufferDescription()
{
Flags = BufferFlags.PrimaryBuffer,
AlgorithmFor3D = Guid.Empty,
};
_primarySoundBuffer = new PrimarySoundBuffer(_directSound, primaryBufferDescription)
{
Format = waveFormat
};
_soundBufferLength = waveFormat.ConvertLatencyToByteSize(500);
var secondaryBufferDescription = new SoundBufferDescription()
{
Format = waveFormat,
Flags = BufferFlags.GetCurrentPosition2 | BufferFlags.GlobalFocus,
BufferBytes = _soundBufferLength,
AlgorithmFor3D = Guid.Empty,
};
_soundBuffer = new SecondarySoundBuffer(_directSound, secondaryBufferDescription);
}
public static void PlaySound3d(SecondarySoundBuffer Sound, bool bCloseFirst, bool bLoopSound, double x, double y, double z)
{
lock (playLock)
{
SoundBuffer3D DS3DBuffer = new SoundBuffer3D(Sound);
//stop currently playing waves?
if (bCloseFirst)
{
Sound.Stop();
Sound.CurrentPosition = 0;
}
//set the position
DS3DBuffer.Position = Get3DVector(x, y, z);
//loop the sound?
if (bLoopSound)
{
Sound.Play(0, SharpDX.DirectSound.PlayFlags.Looping);
}
else
{
Sound.Play(0, SharpDX.DirectSound.PlayFlags.None);
}
DS3DBuffer.Dispose();
} //lock
}
public virtual void onTick()
{
//First, need to set what object sare in range
//since this is the first ontick method.
if (vArray == null)
{
vArray = Interaction.getObjectsInRange(this,
reachRange,
Interaction.RangeFlag.existing);
}
updateTotalDistance();
move();
if (Options.mode == Options.Modes.mission &&
followTarget &&
origTarget != null)
{
z = origTarget.z;
}
if (damage < 1)
{
expl = DSound.LoadSound3d(DSound.SoundPath + "\\m4-1.wav");
DSound.PlaySound(expl, true, false);
finished = true;
}
}
void InitDirectSound(Control parent)
{
//Create the device
MyNesDEBUGGER.WriteLine(this, "Initializing direct sound for APU", DebugStatus.None);
_SoundDevice = new DirectSound();
_SoundDevice.SetCooperativeLevel(parent.Parent.Handle, CooperativeLevel.Normal);
//Create the wav format
WaveFormat wav = new WaveFormat();
wav.FormatTag = WaveFormatTag.Pcm;
wav.SamplesPerSecond = 44100;
wav.Channels = (short)(STEREO ? 2 : 1);
AD = (STEREO ? 4 : 2);//Stereo / Mono
wav.BitsPerSample = 16;
wav.AverageBytesPerSecond = wav.SamplesPerSecond * wav.Channels * (wav.BitsPerSample / 8);
wav.BlockAlignment = (short)(wav.Channels * wav.BitsPerSample / 8);
BufferSize = wav.AverageBytesPerSecond;
//Description
SoundBufferDescription des = new SoundBufferDescription();
des.Format = wav;
des.SizeInBytes = BufferSize;
//des.Flags = BufferFlags.GlobalFocus | BufferFlags.Software;
des.Flags = BufferFlags.ControlVolume | BufferFlags.ControlFrequency | BufferFlags.ControlPan | BufferFlags.ControlEffects;
//buffer
DATA = new byte[BufferSize];
buffer = new SecondarySoundBuffer(_SoundDevice, des);
buffer.Play(0, PlayFlags.Looping);
//channels
InitChannels();
MyNesDEBUGGER.WriteLine(this, "APU OK !!", DebugStatus.Cool);
}
private void PlaySound(Stream sound)
{
DirectSound ds = new DirectSound();
ds.SetCooperativeLevel(this.Handle, CooperativeLevel.Priority);
WaveFormat format = WaveFormat.CreateCustomFormat(
WaveFormatEncoding.Pcm,
44100,
2,
4 * 44100,
4,
16
);
SoundBufferDescription primaryDesc = new SoundBufferDescription();
primaryDesc.Format = format;
primaryDesc.Flags = BufferFlags.GlobalFocus;
primaryDesc.BufferBytes = 8 * 4 * 44100;
PrimarySoundBuffer pBuffer = new PrimarySoundBuffer(ds, primaryDesc);
SoundBufferDescription secondDesc = new SoundBufferDescription();
secondDesc.Format = format;
secondDesc.Flags = BufferFlags.GlobalFocus | BufferFlags.ControlPositionNotify | BufferFlags.GetCurrentPosition2;
secondDesc.BufferBytes = 8 * 4 * 44100;
SecondarySoundBuffer secondBuffer = new SecondarySoundBuffer(ds, secondDesc);
secondBuffer.Write(sound.ReadAll(), 0, LockFlags.None);
secondBuffer.Play(0, PlayFlags.None);
}
public override void serverSideHit(Projector target, int damageAmount)
{
gunHitSound = target.loadSound(target.soundPath + "gun1-" + Common.getRandom(1, 5) + ".wav");
target.playSound(gunHitSound, true, false);
fireHitEvent(target, damageAmount);
finished = true;
}
public void InitializeBuffer(int rate, int channels)
{
format = new WaveFormat();
format.FormatTag = WaveFormatTag.Pcm;
format.SamplesPerSecond = rate;
format.BitsPerSample = 16;
format.Channels = (short)channels;
format.BlockAlignment = (short)(format.Channels * (format.BitsPerSample / 8));
format.AverageBytesPerSecond = format.SamplesPerSecond * format.BlockAlignment;
BufferSize = format.AverageBytesPerSecond;
BufferSize += 512 - (BufferSize % 512);
buffer = new byte[BufferSize];
SoundBufferDescription description = new SoundBufferDescription();
description.Format = format;
description.SizeInBytes = BufferSize;
description.Flags = BufferFlags.ControlVolume | BufferFlags.GlobalFocus | BufferFlags.ControlPositionNotify;
sbuffer = new SecondarySoundBuffer[2];
sbuffer[0] = new SecondarySoundBuffer(DirectSoundWrapper.Device, description);
sbuffer[1] = new SecondarySoundBuffer(DirectSoundWrapper.Device, description);
}
public void Dispose()
{
try
{
Stop();
}
catch { }
if (this.buffer != null)
{
try
{
if (this.buffer.Status == BufferStatus.Playing)
{
this.buffer.Stop();
}
}
catch { }
buffer.Dispose();
this.buffer = null;
}
if (NotificationEvent != null)
{
NotificationEvent.Close();
NotificationEvent = null;
}
this.ClearStreams();
}
public Sound(IntPtr handle, DirectSound device)
{
if (device != null)
{
device.SetCooperativeLevel(handle, CooperativeLevel.Priority);
var format = new WaveFormat
{
SamplesPerSecond = 44100,
BitsPerSample = 16,
Channels = 2,
FormatTag = WaveFormatTag.Pcm,
BlockAlignment = 4
};
format.AverageBytesPerSecond = format.SamplesPerSecond * format.Channels * (format.BitsPerSample / 8);
var desc = new SoundBufferDescription
{
Format = format,
Flags =
BufferFlags.GlobalFocus | BufferFlags.Software | BufferFlags.GetCurrentPosition2 | BufferFlags.ControlVolume,
SizeInBytes = BufferSize
};
DSoundBuffer = new SecondarySoundBuffer(device, desc);
ChangeVolume(Global.Config.SoundVolume);
}
SoundBuffer = new byte[BufferSize];
disposed = false;
}
public Sound(IntPtr formHandle)
{
directSound = new DirectSound();
directSound.SetCooperativeLevel(formHandle, CooperativeLevel.Normal);
// WAVEFORMATEX Structure (from Microsoft Documentation on DirectSound)
// https://docs.microsoft.com/en-us/previous-versions/windows/desktop/ee419019(v%3dvs.85)
var wFormatTag = WaveFormatEncoding.Pcm;
var nSamplesPerSec = 44100;
var nChannels = 1;
var wBitsPerSample = 16; // (short)
var nBlockAlign = (nChannels * wBitsPerSample) / 8; // nBlockAlign must be equal to the product of nChannels and wBitsPerSample divided by 8 (bits per byte)
var nAvgBytesPerSec = nSamplesPerSec * nBlockAlign; // nAvgBytesPerSec should be equal to the product of nSamplesPerSec and nBlockAlign
waveFormat = WaveFormat.CreateCustomFormat(
tag: wFormatTag,
sampleRate: nSamplesPerSec,
channels: nChannels,
averageBytesPerSecond: nAvgBytesPerSec,
blockAlign: nBlockAlign,
bitsPerSample: wBitsPerSample
);
var bufferDesc = new SoundBufferDescription();
bufferDesc.Format = waveFormat;
bufferDesc.BufferBytes = Convert.ToInt32(
bufferDuration.TotalSeconds * waveFormat.AverageBytesPerSecond / waveFormat.Channels);
buffer = new SecondarySoundBuffer(directSound, bufferDesc);
int numSamples = buffer.Capabilities.BufferBytes / waveFormat.BlockAlign;
samples = new short[numSamples];
}
public override void onTick()
{
if (isFinished())
{
fireDisposeEvent();
return;
}
if (finished && performing)
{
performing = (missileHitSound != null && DSound.isPlaying(missileHitSound)) || (expl != null && DSound.isPlaying(expl));
return;
}
performing = true;
playSound3d(missileSound, false, true);
base.onTick();
if (inFiringRange())
{
missileSound.Stop();
missileHitSound = target.loadSound(target.soundPath + "m3-" + Common.getRandom(1, 3) + ".wav");
target.playSound(missileHitSound, true, false);
fireHitEvent(target, Common.getRandom(300));
finished = true;
return;
}
if (totalDistance > 15.0 || finished)
{
missileSound.Stop();
finished = true;
performing = (missileHitSound != null && DSound.isPlaying(missileHitSound)) || (expl != null && DSound.isPlaying(expl));
}
}
public Sound(IntPtr handle, DirectSound device)
{
if (device != null)
{
device.SetCooperativeLevel(handle, CooperativeLevel.Priority);
var format = new WaveFormat
{
SamplesPerSecond = 44100,
BitsPerSample = 16,
Channels = 2,
FormatTag = WaveFormatTag.Pcm,
BlockAlignment = 4
};
format.AverageBytesPerSecond = format.SamplesPerSecond * format.Channels * (format.BitsPerSample / 8);
var desc = new SoundBufferDescription
{
Format = format,
Flags =
BufferFlags.GlobalFocus | BufferFlags.Software | BufferFlags.GetCurrentPosition2 | BufferFlags.ControlVolume,
SizeInBytes = BufferSize
};
DSoundBuffer = new SecondarySoundBuffer(device, desc);
ChangeVolume(Global.Config.SoundVolume);
}
SoundBuffer = new byte[BufferSize];
disposed = false;
}
public override void use()
{
direction = weapon.creator.direction;
int ammunitionNumber = weapon.ammunitionFor(WeaponTypes.missile) + 1;
if (!isAI)
{
if (ammunitionNumber % 2 != 0) //odd number means fire from right
{
missileLaunchSound.Pan = (ammunitionNumber + 1) / 2 * 2500; //give 1 to ammunition number so we can divide properly; adding 1 will make it evenly divisible by 2.
}
else
{
missileLaunchSound.Pan = ammunitionNumber / 2 * -2500;
}
fox = loadSound(soundPath + "fox2.wav");
playSound(fox, true, false);
DXInput.startFireEffect();
} //if !AI
playSound(missileLaunchSound, true, false);
if (origTarget != null)
{
z = origTarget.z;
if (isAI && origTarget is Aircraft)
{
((Aircraft)origTarget).notifyOf(Notifications.missileLaunch, Degrees.getDistanceBetween(x, y, origTarget.x, origTarget.y) <= 15);
}
}
}
/// <summary>
/// Creates a new person
/// </summary>
/// <param name="x">Starting x coordinate</param>
/// <param name="y">Starting y coordinate</param>
/// <param name="damage">Starting hit points; max damage will also be set to this value</param>
/// <param name="isAI">True if computer controlled, false otherwise</param>
public Person(int x, int y, int damage, bool isAI)
: base(x, y, damage, isAI)
{
this.isAI = isAI;
if (juliusLevel() == 2)
{
missiles = new PersonMissile[1];
}
else if (juliusLevel() == 3)
{
missiles = new PersonMissile[4];
}
if (juliusLevel() == 3)
{
shootSound = loadSound("l3s.wav");
lockSound = loadSound("l3a.wav");
}
lastStunTime = lastPunchTime = lastMissileTime = DateTime.Now;
stopPunchTime = Common.getRandom(1, 10);
startSeekTime = DateTime.Now;
blockSound = loadSound("fb.wav");
stunSound = loadSound("fstun.wav");
if (!isAI)
{
DSound.SetCoordinates(x, 0.0, y);
}
}
/// <summary>
/// Initializes a media player with the given file
/// </summary>
/// <param name="fileName">the file to play</param>
/// <returns>true if successful</returns>
private bool _setupSoundPlayer(string filename)
{
bool retval = false;
soundPlayer = null;
if ((filename.Length != 0))
{
try
{
fileName = filename;
soundPlayer = DirectSoundWrapper.CreateSoundBufferFromWave(fileName);
SlimDX.Multimedia.WaveStream waveFile = new SlimDX.Multimedia.WaveStream(fileName);
List <NotificationPosition> pos = new List <NotificationPosition>();
notificationPosition.Offset = (int)waveFile.Length - 1;
notificationPosition.Event = new AutoResetEvent(false);
pos.Add(notificationPosition);
soundPlayer.SetNotificationPositions(pos.ToArray());
}
catch (Exception ex)
{
logger.Error("[SoundPlayer] Error creating soundplayer: " + ex.Message);
}
_updateVolume(volume);
retval = true;
}
return(retval);
}
public SecondarySoundBuffer loadSound(string filename)
{
SecondarySoundBuffer s = null;
System.Diagnostics.Trace.WriteLine("Loading sound " + filename);
if (isAI && !autoPlayTarget)
{
if (!forceStareo)
{
s = DSound.LoadSound3d(filename);
}
else
{
s = DSound.LoadSound(filename);
}
}
else //Either this is not AI or this is autoPlayTarget
{
s = DSound.LoadSound(filename);
}
if (s == null)
{
System.Diagnostics.Trace.WriteLine(filename + " is a null buffer");
}
return(s);
}
public SecondarySoundBuffer Acquire(int soundId)
{
if (soundId < 0 || soundId >= 4096)
{
return(null);
}
return((SecondarySoundBuffer)Archives.Sound.Open <SecondarySoundBuffer>(GetFilePath(soundId), stream =>
{
SoundBufferDescription bufferDescription1 = new SoundBufferDescription();
bufferDescription1.Format = _waveFormat;
bufferDescription1.BufferBytes = checked ((int)(stream.Length - 40L));
SoundBufferDescription bufferDescription2 = bufferDescription1;
BufferFlags num1 = bufferDescription2.Flags | (BufferFlags)128;
bufferDescription2.Flags = num1;
SoundBufferDescription bufferDescription3 = bufferDescription1;
BufferFlags num2 = bufferDescription3.Flags | (BufferFlags)32;
bufferDescription3.Flags = num2;
SoundBufferDescription bufferDescription4 = bufferDescription1;
BufferFlags num3 = bufferDescription4.Flags | (BufferFlags)64;
bufferDescription4.Flags = num3;
SecondarySoundBuffer secondarySoundBuffer = new SecondarySoundBuffer(_soundDevice, bufferDescription1);
stream.Seek(40L, SeekOrigin.Begin);
byte[] buffer = new byte[stream.Length - 40L];
stream.Read(buffer, 0, buffer.Length);
secondarySoundBuffer.Write(buffer, 0, (SharpDX.DirectSound.LockFlags) 2);
return secondarySoundBuffer;
}));
}
/// <summary>
/// Creates a new wreckage
/// </summary>
/// <param name="x">The mid X value.</param>
/// <param name="y">The mid y value.</param>
/// <param name="damage">The damage points</param>
/// <param name="length">The length</param>
/// <param name="width">The width</param>
public BurningWreckage(int x, int y, int damage, int length, int width)
: base(x, y, damage, length, width)
{
hitFile = "fwreckage.wav";
fireSound = loadSound("ffire.wav");
playSound(fireSound, true, true);
}
public override void onTick()
{
if (isFinished())
{
fireDisposeEvent();
return;
}
if (finished && performing)
{
//The weapon is done doing what it needs to do, but a sound is still playing.
//Do not free this weapon until the sound is done playing or the program will act up.
if (gunHitSound != null)
{
performing = DSound.isPlaying(gunHitSound);
}
return;
}
performing = true;
base.onTick();
if (inFiringRange())
{
gunHitSound = target.loadSound(target.soundPath + "gun1-" + Common.getRandom(1, 5) + ".wav");
target.playSound(gunHitSound, true, false);
fireHitEvent(target, 10);
finished = true;
return;
}
if (totalDistance >= 4)
{
finished = true;
performing = false;
}
}
public DirectSound(
Form form,
int sampleRate,
int bufferCount)
{
if ((sampleRate % 50) != 0)
{
throw new ArgumentOutOfRangeException("sampleRate", "Sample rate must be a multiple of 50!");
}
_sampleRate = sampleRate;
var bufferSize = sampleRate / 50;
for (int i = 0; i < bufferCount; i++)
{
_fillQueue.Enqueue(new uint[bufferSize]);
}
_bufferSize = bufferSize;
_bufferCount = bufferCount;
_zeroValue = 0;
var hWnd = form != null ? form.Handle : IntPtr.Zero;
_device = new DirectSound8();
_device.SetCooperativeLevel(hWnd, DSSCL.PRIORITY);
// we always use 16 bit stereo (uint per sample)
const short channels = 2;
const short bitsPerSample = 16;
const int sampleSize = 4; // channels * (bitsPerSample / 8);
var wf = new WaveFormat(_sampleRate, bitsPerSample, channels);
// Create a buffer
var bufferDesc = new DSBUFFERDESC();
bufferDesc.dwBufferBytes = _bufferSize * sampleSize * _bufferCount;
bufferDesc.dwFlags =
DSBCAPS_FLAGS.CTRLVOLUME |
DSBCAPS_FLAGS.CTRLPOSITIONNOTIFY |
DSBCAPS_FLAGS.GLOBALFOCUS |
DSBCAPS_FLAGS.GETCURRENTPOSITION2;
bufferDesc.Format = wf;
_soundBuffer = new SecondarySoundBuffer(_device, bufferDesc);
var posNotify = new DSBPOSITIONNOTIFY[_bufferCount];
for (int i = 0; i < posNotify.Length; i++)
{
posNotify[i] = new DSBPOSITIONNOTIFY();
posNotify[i].dwOffset = i * _bufferSize * sampleSize;
posNotify[i].WaitHandle = _fillEvent;
}
_soundBuffer.SetNotificationPositions(posNotify);
_wavePlayThread = new Thread(WavePlayThreadProc);
_wavePlayThread.IsBackground = true;
_wavePlayThread.Name = "WavePlay";
_wavePlayThread.Priority = ThreadPriority.Highest;
_wavePlayThread.Start();
}
public static bool isLooping(SecondarySoundBuffer s)
{
if ((s.Status & (int)BufferStatus.Looping) == (int)BufferStatus.Looping)
{
return(true);
}
return(false);
}
void releaseResources()
{
if (audioBuffer != null)
{
delete audioBuffer;
audioBuffer = null;
}
}
private void Register(SecondarySoundBuffer soundBuffer)
{
if (soundBuffer == null)
{
return;
}
this._buffers.Add(soundBuffer);
}
public void StopSound()
{
_deviceBuffer.Stop();
_deviceBuffer.Dispose();
_deviceBuffer = null;
BufferSizeSamples = 0;
}
public override void serverSideHit(Projector target, int remainingDamage)
{
missileSound.Stop();
hitSound = target.loadSound(target.soundPath + "m3-" + Common.getRandom(1, 2) + ".wav");
target.playSound(hitSound, true, false);
fireHitEvent(target, remainingDamage);
finished = true;
}
public override void serverSideHit(Projector target, int damageAmount)
{
missileSound.Stop();
missileHitSound = target.loadSound(target.soundPath + "m3-" + Common.getRandom(1, 3) + ".wav");
target.playSound(missileHitSound, true, false);
fireHitEvent(target, damageAmount);
finished = true;
}
public override void playCrashSound(int x, int y)
{
if (crashSound == null)
{
crashSound = DSound.LoadSound3d(DSound.SoundPath + "\\a_fwall.wav");
}
DSound.PlaySound3d(crashSound, true, false, x, y, 0);
}
protected override void ShutdownAudioFile()
{
if (_SecondaryBuffer != null)
{
_SecondaryBuffer.Dispose();
_SecondaryBuffer = null;
}
}
static void Main(string[] args)
{
DirectSound directSound = new DirectSound();
var form = new Form();
form.Text = "SharpDX - DirectSound Demo";
// Set Cooperative Level to PRIORITY (priority level can call the SetFormat and Compact methods)
//
directSound.SetCooperativeLevel(form.Handle, CooperativeLevel.Priority);
// Create PrimarySoundBuffer
var primaryBufferDesc = new SoundBufferDescription();
primaryBufferDesc.Flags = BufferFlags.PrimaryBuffer;
primaryBufferDesc.AlgorithmFor3D = Guid.Empty;
var primarySoundBuffer = new PrimarySoundBuffer(directSound, primaryBufferDesc);
// Play the PrimarySound Buffer
primarySoundBuffer.Play(0, PlayFlags.Looping);
// Default WaveFormat Stereo 44100 16 bit
WaveFormat waveFormat = new WaveFormat();
// Create SecondarySoundBuffer
var secondaryBufferDesc = new SoundBufferDescription();
secondaryBufferDesc.BufferBytes = waveFormat.ConvertLatencyToByteSize(60000);
secondaryBufferDesc.Format = waveFormat;
secondaryBufferDesc.Flags = BufferFlags.GetCurrentPosition2 | BufferFlags.ControlPositionNotify | BufferFlags.GlobalFocus |
BufferFlags.ControlVolume | BufferFlags.StickyFocus;
secondaryBufferDesc.AlgorithmFor3D = Guid.Empty;
var secondarySoundBuffer = new SecondarySoundBuffer(directSound, secondaryBufferDesc);
// Get Capabilties from secondary sound buffer
var capabilities = secondarySoundBuffer.Capabilities;
// Lock the buffer
DataStream dataPart2;
var dataPart1 =secondarySoundBuffer.Lock(0, capabilities.BufferBytes, LockFlags.EntireBuffer, out dataPart2);
// Fill the buffer with some sound
int numberOfSamples = capabilities.BufferBytes/waveFormat.BlockAlign;
for (int i = 0; i < numberOfSamples; i++)
{
double vibrato = Math.Cos(2 * Math.PI * 10.0 * i /waveFormat.SampleRate);
short value = (short) (Math.Cos(2*Math.PI*(220.0 + 4.0 * vibrato)*i/waveFormat.SampleRate)*16384); // Not too loud
dataPart1.Write(value);
dataPart1.Write(value);
}
// Unlock the buffer
secondarySoundBuffer.Unlock(dataPart1, dataPart2);
// Play the song
secondarySoundBuffer.Play(0, PlayFlags.Looping);
Application.Run(form);
}
/// <summary>
/// Play DX7.
/// </summary>
/// <param name="channels">An array of values for each channel (values between 0 and 1, usually 8 channels).</param>
public static void PlayDX7(Primitive channels)
{
Initialise();
try
{
int i, iServo;
double duration = 0.0225;
int sampleCount = (int)(duration * waveFormat.SamplesPerSecond);
// buffer description
SoundBufferDescription soundBufferDescription = new SoundBufferDescription();
soundBufferDescription.Format = waveFormat;
soundBufferDescription.Flags = BufferFlags.Defer;
soundBufferDescription.SizeInBytes = sampleCount * waveFormat.BlockAlignment;
SecondarySoundBuffer secondarySoundBuffer = new SecondarySoundBuffer(directSound, soundBufferDescription);
short[] rawsamples = new short[sampleCount];
int stopSamples = (int)(0.0004 * waveFormat.SamplesPerSecond);
List<int> servoSamples = new List<int>();
Primitive indices = SBArray.GetAllIndices(channels);
int servoCount = SBArray.GetItemCount(indices);
for (iServo = 1; iServo <= servoCount; iServo++)
{
servoSamples.Add((int)((0.0007 + 0.0008 * channels[indices[iServo]]) * waveFormat.SamplesPerSecond));
}
//Lead-in
int leading = sampleCount - (servoCount + 1) * stopSamples - servoSamples.Sum();
int sample = 0;
for (i = 0; i < leading; i++) rawsamples[sample++] = 0;
//Servos
for (i = 0; i < stopSamples; i++) rawsamples[sample++] = (short)(-amplitude);
for (iServo = 0; iServo < servoCount; iServo++)
{
for (i = 0; i < servoSamples[iServo]; i++) rawsamples[sample++] = amplitude;
for (i = 0; i < stopSamples; i++) rawsamples[sample++] = (short)(-amplitude);
}
//load audio samples to secondary buffer
secondarySoundBuffer.Write(rawsamples, 0, LockFlags.EntireBuffer);
//play audio buffer
secondarySoundBuffer.Play(0, PlayFlags.None);
//wait to complete before returning
while ((secondarySoundBuffer.Status & BufferStatus.Playing) != 0);
secondarySoundBuffer.Dispose();
}
catch (Exception ex)
{
TextWindow.WriteLine(ex.Message);
}
}
/// <summary>Creates a sound.</summary>
/// <param name="samples">A byte array containing the sample data (Mono 16-bit Signed samples).</param>
/// <param name="frequency">The sample frequency in herz.</param>
/// <param name="soundIndex">The index of the sound.</param>
/// <param name="speakerSound">Whether the sound is a speaker sound otherwise it is a sampled sound.</param>
/// <returns>The Sound.</returns>
public override SoundSystem.Sound CreateSound(byte[] samples, int frequency, int soundIndex, bool speakerSound)
{
WaveFormat waveFormat = new WaveFormat();
waveFormat.FormatTag = WaveFormatTag.Pcm;
waveFormat.Channels = (short) 1;
waveFormat.SamplesPerSecond = frequency;
waveFormat.BlockAlignment = (short) 2;
waveFormat.AverageBytesPerSecond = frequency * 2;
waveFormat.BitsPerSample = (short) 16;
SoundBufferDescription soundBufferDescription = new SoundBufferDescription();
soundBufferDescription.Format = waveFormat;
soundBufferDescription.Flags = BufferFlags.ControlVolume;
soundBufferDescription.SizeInBytes = samples.Length;
SecondarySoundBuffer secondarySoundBuffer = new SecondarySoundBuffer(_directSound, soundBufferDescription);
secondarySoundBuffer.Write(samples, 0, LockFlags.EntireBuffer);
return new SlimDXSound(secondarySoundBuffer);
}
/// <summary>
/// Constructs a new Audio Output Device.
/// </summary>
///
/// <param name="device">Global identifier of the audio output device.</param>
/// <param name="owner">The owner window handle.</param>
/// <param name="samplingRate">The sampling rate of the device.</param>
/// <param name="channels">The number of channels of the device.</param>
///
public AudioOutputDevice(Guid device, IntPtr owner, int samplingRate, int channels)
{
this.owner = owner;
this.samplingRate = samplingRate;
this.channels = channels;
this.device = device;
DirectSound ds = new DirectSound(device);
ds.SetCooperativeLevel(owner, CooperativeLevel.Priority);
// Set the output format
WaveFormat waveFormat = new WaveFormat();
waveFormat.FormatTag = WaveFormatTag.IeeeFloat;
waveFormat.BitsPerSample = 32;
waveFormat.BlockAlignment = (short)(waveFormat.BitsPerSample * channels / 8);
waveFormat.Channels = (short)channels;
waveFormat.SamplesPerSecond = samplingRate;
waveFormat.AverageBytesPerSecond = waveFormat.SamplesPerSecond * waveFormat.BlockAlignment;
bufferSize = 8 * waveFormat.AverageBytesPerSecond;
// Setup the secondary buffer
SoundBufferDescription desc2 = new SoundBufferDescription();
desc2.Flags =
BufferFlags.GlobalFocus |
BufferFlags.ControlPositionNotify |
BufferFlags.GetCurrentPosition2;
desc2.SizeInBytes = bufferSize;
desc2.Format = waveFormat;
buffer = new SecondarySoundBuffer(ds, desc2);
var list = new List<NotificationPosition>();
int numberOfPositions = 32;
// Set notification for buffer percentiles
for (int i = 0; i < numberOfPositions; i++)
{
list.Add(new NotificationPosition()
{
Event = new AutoResetEvent(false),
Offset = i * bufferSize / numberOfPositions + 1,
});
}
// Set notification for end of buffer
list.Add(new NotificationPosition()
{
Offset = bufferSize - 1,
Event = new AutoResetEvent(false)
});
firstHalfBufferIndex = numberOfPositions / 2;
secondHalfBufferIndex = numberOfPositions;
notifications = list.ToArray();
System.Diagnostics.Debug.Assert(notifications[firstHalfBufferIndex].Offset == bufferSize / 2 + 1);
System.Diagnostics.Debug.Assert(notifications[secondHalfBufferIndex].Offset == bufferSize - 1);
// Make a copy of the wait handles
waitHandles = new WaitHandle[notifications.Length];
for (int i = 0; i < notifications.Length; i++)
waitHandles[i] = notifications[i].Event;
// Store all notification positions
buffer.SetNotificationPositions(notifications);
}
public void Initialize(IntPtr handle)
{
if (isInitialized)
{
Dispose();
}
isInitialized = false;
LoadSettings();
//Create the device
Console.WriteLine("DirectSound: Initializing directSound ...");
_SoundDevice = new DirectSound();
_SoundDevice.SetCooperativeLevel(handle, CooperativeLevel.Normal);
//Create the wav format
WaveFormat wav = new WaveFormat();
wav.FormatTag = WaveFormatTag.Pcm;
wav.SamplesPerSecond = Program.Settings.Audio_Frequency;
wav.Channels = 1;
wav.BitsPerSample = Program.Settings.Audio_BitsPerSample;
wav.AverageBytesPerSecond = wav.SamplesPerSecond * wav.Channels * (wav.BitsPerSample / 8);
wav.BlockAlignment = (short)(wav.Channels * wav.BitsPerSample / 8);
//BufferSize = (int)(wav.AverageBytesPerSecond * ((double)Program.Settings.Audio_BufferSizeInMilliseconds) / (double)1000);
BufferSize = Program.Settings.Audio_BufferSizeInBytes;
//latency_in_bytes = (int)((double)wav.AverageBytesPerSecond * (double)(Program.Settings.Audio_LatencyInPrecentage / (double)1000));
latency_in_bytes = (Program.Settings.Audio_LatencyInPrecentage * BufferSize) / 100;
latency_in_samples = latency_in_bytes / 2;
Console.WriteLine("DirectSound: BufferSize = " + BufferSize + " Byte");
Console.WriteLine("DirectSound: Latency in bytes = " + latency_in_bytes + " Byte");
//Description
SoundBufferDescription des = new SoundBufferDescription();
des.Format = wav;
des.SizeInBytes = BufferSize;
des.Flags = BufferFlags.ControlVolume | BufferFlags.ControlFrequency | BufferFlags.ControlPan | BufferFlags.Software;
buffer = new SecondarySoundBuffer(_SoundDevice, des);
//buffer.Play(0, PlayFlags.Looping);
// Set volume
SetVolume(volume);
Console.WriteLine("DirectSound: DirectSound initialized OK.");
isInitialized = true;
Shutdown();
}
void load_sound_file(ref MemoryStream sound_stream, ref WaveStream wave_stream, ref byte[] data_array, ref SoundBufferDescription buf_desc, ref SecondarySoundBuffer buf, string file, ref bool executed)
{
try
{
if ((((Form1)(form1_reference)).retrieve_resources != null) && (((Form1)(form1_reference)).retrieve_resources.EntryFileNames.Contains(file)))
{
sound_stream = new MemoryStream();
((Form1)(form1_reference)).retrieve_resources.Extract(file, sound_stream);
data_array = new byte[Convert.ToInt32(sound_stream.Length)];
data_array = sound_stream.ToArray();
wave = new WaveFormat();
wave.FormatTag = WaveFormatTag.Pcm;
wave.BitsPerSample = (short)((data_array[35] << 8) | data_array[34]);
wave.BlockAlignment = (short)((data_array[33] << 8) | data_array[32]);
wave.Channels = (short)((data_array[23] << 8) | data_array[22]);
wave.SamplesPerSecond = (int)((data_array[27] << 24) | (data_array[26] << 16) | (data_array[25] << 8) | (data_array[24]));
wave.AverageBytesPerSecond = (int)((data_array[27] << 24) | (data_array[26] << 16) | (data_array[25] << 8) | (data_array[24]));
sound_stream = new MemoryStream(data_array);
wave_stream = new WaveStream(sound_stream);
buf_desc = new SoundBufferDescription();
buf_desc.Flags = BufferFlags.GlobalFocus;
buf_desc.SizeInBytes = (int)sound_stream.Length;
buf_desc.Format = wave;
if (sound_stream.Length > 0)
{
buf = new SecondarySoundBuffer(device, buf_desc);
wave_stream.Read(data_array, 0, buf_desc.SizeInBytes);
buf.Write(data_array, 0, LockFlags.EntireBuffer);
}
executed = false;
sound_stream.Close();
}
else
{
buf_desc = new SoundBufferDescription();
buf_desc.Flags = BufferFlags.GlobalFocus;
if (File.Exists(file))
{
wave_stream = new WaveStream(file);
buf_desc.Format = wave_stream.Format;
buf_desc.SizeInBytes = (int)wave_stream.Length;
data_array = new byte[wave_stream.Length];
buf = new SecondarySoundBuffer(device, buf_desc);
wave_stream.Read(data_array, 0, buf_desc.SizeInBytes);
buf.Write(data_array, 0, LockFlags.EntireBuffer);
}
executed = false;
}
}
catch (DirectSoundException e)
{
MessageBox.Show(e.ToString(), "Error!", MessageBoxButtons.OK);
}
}
private static string _PlayWavFile(string fileName, double duration)
{
try
{
Initialise();
WaveStream waveFile = new WaveStream(fileName);
SoundBufferDescription soundBufferDescription = new SoundBufferDescription();
soundBufferDescription.Format = waveFile.Format;
soundBufferDescription.Flags = BufferFlags.Defer | BufferFlags.ControlVolume | BufferFlags.ControlPan;
soundBufferDescription.SizeInBytes = (int)waveFile.Length;
SecondarySoundBuffer secondarySoundBuffer = new SecondarySoundBuffer(directSound, soundBufferDescription);
secondarySoundBuffer.Pan = pan;
secondarySoundBuffer.Volume = volume;
byte[] rawsamples = new byte[soundBufferDescription.SizeInBytes];
waveFile.Read(rawsamples, 0, soundBufferDescription.SizeInBytes);
waveFile.Close();
secondarySoundBuffer.Write(rawsamples, 0, LockFlags.EntireBuffer);
string name = NextName();
Buffer buffer = new Buffer(name, secondarySoundBuffer, 0, duration);
buffers.Add(buffer);
Thread thread = new Thread(new ParameterizedThreadStart(DoPlay));
thread.Start(buffer);
if (!bAsync) thread.Join();
return name;
}
catch (Exception ex)
{
Utilities.OnError(Utilities.GetCurrentMethod(), ex);
return "";
}
}
public void Dispose()
{
isInitialized = false;
Stop();
buffer.Dispose(); buffer = null;
_SoundDevice.Dispose(); _SoundDevice = null;
GC.Collect();
}
public void Dispose()
{
if (disposed) return;
if (DSoundBuffer != null && DSoundBuffer.Disposed == false)
{
DSoundBuffer.Dispose();
DSoundBuffer = null;
}
}
private static string _PlayWave(double frequency, double duration, Primitive waveform)
{
try
{
Initialise();
int sampleCount = (int)(waveFormat.SamplesPerSecond / frequency);
// buffer description
SoundBufferDescription soundBufferDescription = new SoundBufferDescription();
soundBufferDescription.Format = waveFormat;
soundBufferDescription.Flags = BufferFlags.Defer | BufferFlags.ControlVolume | BufferFlags.ControlPan;
soundBufferDescription.SizeInBytes = sampleCount * waveFormat.BlockAlignment;
SecondarySoundBuffer secondarySoundBuffer = new SecondarySoundBuffer(directSound, soundBufferDescription);
secondarySoundBuffer.Pan = pan;
secondarySoundBuffer.Volume = volume;
short[] rawsamples = new short[sampleCount];
double frac, value;
Primitive indices = SBArray.GetAllIndices(waveform);
int count = SBArray.GetItemCount(waveform);
double interval = indices[count] - indices[1];
double[] timeFrac = new double[count];
double[] timeValue = new double[count];
for (int i = 1; i <= count; i++) //Normalise to interval 1;
{
timeFrac[i - 1] = (indices[i] - indices[1]) / interval;
timeValue[i - 1] = waveform[indices[i]];
}
for (int i = 0; i < sampleCount; i++)
{
frac = i / (double)sampleCount;
frac = frac - (int)frac;
for (int j = 0; j < count - 1; j++)
{
if (frac >= timeFrac[j] && frac <= timeFrac[j + 1])
{
value = timeValue[j] + (timeValue[j + 1] - timeValue[j]) * (frac - timeFrac[j]) / (timeFrac[j + 1] - timeFrac[j]);
rawsamples[i] = (short)(amplitude * value);
break;
}
}
}
secondarySoundBuffer.Write(rawsamples, 0, LockFlags.EntireBuffer);
string name = NextName();
Buffer buffer = new Buffer(name, secondarySoundBuffer, frequency, duration);
buffers.Add(buffer);
Thread thread = new Thread(new ParameterizedThreadStart(DoPlay));
thread.Start(buffer);
if (!bAsync) thread.Join();
return name;
}
catch (Exception ex)
{
Utilities.OnError(Utilities.GetCurrentMethod(), ex);
return "";
}
}
private static string _PlayHarmonics(double frequency, double duration, Primitive harmonics)
{
try
{
Initialise();
int sampleCount = (int)(waveFormat.SamplesPerSecond / frequency);
// buffer description
SoundBufferDescription soundBufferDescription = new SoundBufferDescription();
soundBufferDescription.Format = waveFormat;
soundBufferDescription.Flags = BufferFlags.Defer | BufferFlags.ControlVolume | BufferFlags.ControlPan;
soundBufferDescription.SizeInBytes = sampleCount * waveFormat.BlockAlignment;
SecondarySoundBuffer secondarySoundBuffer = new SecondarySoundBuffer(directSound, soundBufferDescription);
secondarySoundBuffer.Pan = pan;
secondarySoundBuffer.Volume = volume;
short[] rawsamples = new short[sampleCount];
double frac, value;
Primitive indices = SBArray.GetAllIndices(harmonics);
int count = SBArray.GetItemCount(harmonics);
for (int i = 0; i < sampleCount; i++)
{
frac = i / (double)sampleCount;
value = System.Math.Sin(2.0 * System.Math.PI * frac);
for (int j = 1; j <= count; j++)
{
double harmonic = indices[j];
value += harmonics[harmonic] * System.Math.Sin(2.0 * System.Math.PI * harmonic * frac);
}
rawsamples[i] = (short)(amplitude * value);
}
secondarySoundBuffer.Write(rawsamples, 0, LockFlags.EntireBuffer);
string name = NextName();
Buffer buffer = new Buffer(name, secondarySoundBuffer, frequency, duration);
buffers.Add(buffer);
Thread thread = new Thread(new ParameterizedThreadStart(DoPlay));
thread.Start(buffer);
if (!bAsync) thread.Join();
return name;
}
catch (Exception ex)
{
Utilities.OnError(Utilities.GetCurrentMethod(), ex);
return "";
}
}
private static string _Play(double frequency, double duration, int iType)
{
try
{
Initialise();
int sampleCount = (int)(waveFormat.SamplesPerSecond / frequency);
// buffer description
SoundBufferDescription soundBufferDescription = new SoundBufferDescription();
soundBufferDescription.Format = waveFormat;
soundBufferDescription.Flags = BufferFlags.Defer | BufferFlags.ControlVolume | BufferFlags.ControlPan;
soundBufferDescription.SizeInBytes = sampleCount * waveFormat.BlockAlignment;
SecondarySoundBuffer secondarySoundBuffer = new SecondarySoundBuffer(directSound, soundBufferDescription);
secondarySoundBuffer.Pan = pan;
secondarySoundBuffer.Volume = volume;
short[] rawsamples = new short[sampleCount];
double frac, value;
switch (iType)
{
case 1: //Sinusoidal
for (int i = 0; i < sampleCount; i++)
{
frac = i / (double)sampleCount;
value = System.Math.Sin(2.0 * System.Math.PI * frac);
rawsamples[i] = (short)(amplitude * value);
}
break;
case 2: //Square
for (int i = 0; i < sampleCount; i++)
{
frac = i / (double)sampleCount;
frac = frac - (int)frac;
value = frac < 0.5 ? -1.0 : 1.0;
rawsamples[i] = (short)(amplitude * value);
}
break;
}
secondarySoundBuffer.Write(rawsamples, 0, LockFlags.EntireBuffer);
string name = NextName();
Buffer buffer = new Buffer(name, secondarySoundBuffer, frequency, duration);
buffers.Add(buffer);
Thread thread = new Thread(new ParameterizedThreadStart(DoPlay));
thread.Start(buffer);
if (!bAsync) thread.Join();
return name;
}
catch (Exception ex)
{
Utilities.OnError(Utilities.GetCurrentMethod(), ex);
return "";
}
}
void InitDirectSound(IntPtr handle)
{
//Create the device
_SoundDevice = new DirectSound();
_SoundDevice.SetCooperativeLevel(handle, CooperativeLevel.Priority);
//Creat the wav format, it will be mono-44100-pcm-16bit
//TODO: support more wave formats
WaveFormat wav = new WaveFormat();
wav.FormatTag = WaveFormatTag.Pcm;
wav.SamplesPerSecond = 44100;
wav.Channels = 1;//mono
wav.BitsPerSample = 16;
wav.AverageBytesPerSecond = 88200;//wav.SamplesPerSecond * wav.Channels * (wav.BitsPerSample / 8);
wav.BlockAlignment = 2;//(wfx.Channels * wfx.BitsPerSample / 8);
BufferSize = 88200 * 5;
//Description
SoundBufferDescription des = new SoundBufferDescription();
des.Format = wav;
des.SizeInBytes = BufferSize;
des.Flags = BufferFlags.GlobalFocus | BufferFlags.Software;
//buffer
buffer = new SecondarySoundBuffer(_SoundDevice, des);
DATA = new byte[BufferSize];
buffer.Play(0, PlayFlags.Looping);
//channels
InitChannels();
}
public void Reset()
{
bufferSize = audioFormat.AverageBytesPerSecond / 10;
sBufferDescription.Flags = BufferFlags.GlobalFocus | BufferFlags.ControlVolume | BufferFlags.GetCurrentPosition2;
sBufferDescription.Format = audioFormat;
sBufferDescription.SizeInBytes = bufferSize * 2;
sBuffer = new SecondarySoundBuffer(device, sBufferDescription);
sBuffer.Volume = FloatToDB(volume);
}
public void StopSound()
{
_deviceBuffer.Stop();
_deviceBuffer.Dispose();
_deviceBuffer = null;
BufferSizeSamples = 0;
}
private static string _PlayDX7(Primitive channels)
{
try
{
Initialise();
int i, iServo;
double duration = 0.0225;
int sampleCount = (int)(duration * waveFormat.SamplesPerSecond);
// buffer description
SoundBufferDescription soundBufferDescription = new SoundBufferDescription();
soundBufferDescription.Format = waveFormat;
soundBufferDescription.Flags = BufferFlags.Defer | BufferFlags.ControlVolume | BufferFlags.ControlPan;
soundBufferDescription.SizeInBytes = sampleCount * waveFormat.BlockAlignment;
SecondarySoundBuffer secondarySoundBuffer = new SecondarySoundBuffer(directSound, soundBufferDescription);
secondarySoundBuffer.Pan = pan;
secondarySoundBuffer.Volume = volume;
short[] rawsamples = new short[sampleCount];
int stopSamples = (int)(0.0004 * waveFormat.SamplesPerSecond);
List<int> servoSamples = new List<int>();
Primitive indices = SBArray.GetAllIndices(channels);
int servoCount = SBArray.GetItemCount(indices);
for (iServo = 1; iServo <= servoCount; iServo++)
{
servoSamples.Add((int)((0.0007 + 0.0008 * channels[indices[iServo]]) * waveFormat.SamplesPerSecond));
}
//Lead-in
int leading = sampleCount - (servoCount + 1) * stopSamples - servoSamples.Sum();
int sample = 0;
for (i = 0; i < leading; i++) rawsamples[sample++] = 0;
//Servos
for (i = 0; i < stopSamples; i++) rawsamples[sample++] = (short)(-amplitude);
for (iServo = 0; iServo < servoCount; iServo++)
{
for (i = 0; i < servoSamples[iServo]; i++) rawsamples[sample++] = amplitude;
for (i = 0; i < stopSamples; i++) rawsamples[sample++] = (short)(-amplitude);
}
secondarySoundBuffer.Write(rawsamples, 0, LockFlags.EntireBuffer);
string name = NextName();
Buffer buffer = new Buffer(name, secondarySoundBuffer, 0, -1);
buffers.Add(buffer);
Thread thread = new Thread(new ParameterizedThreadStart(DoPlay));
thread.Start(buffer);
if (!bAsync) thread.Join();
return name;
}
catch (Exception ex)
{
Utilities.OnError(Utilities.GetCurrentMethod(), ex);
return "";
}
}
public void StartSound()
{
BufferSizeSamples = Sound.MillisecondsToSamples(Global.Config.SoundBufferSizeMs);
// 35 to 65 milliseconds depending on how big the buffer is. This is a trade-off
// between more frequent but less severe glitches (i.e. catching underruns before
// they happen and filling the buffer with silence) or less frequent but more
// severe glitches. At least on my Windows 8 machines, the distance between the
// play and write cursors can be up to 30 milliseconds, so that would be the
// absolute minimum we could use here.
int minBufferFullnessMs = Math.Min(35 + ((Global.Config.SoundBufferSizeMs - 60) / 2), 65);
MaxSamplesDeficit = BufferSizeSamples - Sound.MillisecondsToSamples(minBufferFullnessMs);
var format = new WaveFormat
{
SamplesPerSecond = Sound.SampleRate,
BitsPerSample = Sound.BytesPerSample * 8,
Channels = Sound.ChannelCount,
FormatTag = WaveFormatTag.Pcm,
BlockAlignment = Sound.BlockAlign,
AverageBytesPerSecond = Sound.SampleRate * Sound.BlockAlign
};
var desc = new SoundBufferDescription
{
Format = format,
Flags =
BufferFlags.GlobalFocus |
BufferFlags.Software |
BufferFlags.GetCurrentPosition2 |
BufferFlags.ControlVolume,
SizeInBytes = BufferSizeBytes
};
_deviceBuffer = new SecondarySoundBuffer(_device, desc);
_actualWriteOffsetBytes = -1;
_filledBufferSizeBytes = 0;
_lastWriteTime = 0;
_lastWriteCursor = 0;
_deviceBuffer.Play(0, SlimDX.DirectSound.PlayFlags.Looping);
}
private void InitDirectSound(Control parent)
{
Debug.WriteLine(this, "Initializing APU ....", DebugStatus.None);
//Create the device
_SoundDevice = new DirectSound();
_SoundDevice.SetCooperativeLevel(parent.Parent.Handle, CooperativeLevel.Normal);
//Create the wav format
var wav = new WaveFormat();
wav.FormatTag = WaveFormatTag.Pcm;
wav.SamplesPerSecond = 44100;
wav.Channels = (short) (STEREO ? 2 : 1);
AD = (STEREO ? 4 : 2); //Stereo / Mono
wav.BitsPerSample = 16;
wav.AverageBytesPerSecond = wav.SamplesPerSecond*wav.Channels*(wav.BitsPerSample/8);
wav.BlockAlignment = (short) (wav.Channels*wav.BitsPerSample/8);
BufferSize = wav.AverageBytesPerSecond;
//Description
var des = new SoundBufferDescription
{
Format = wav,
SizeInBytes = BufferSize,
Flags =
BufferFlags.ControlVolume | BufferFlags.ControlFrequency | BufferFlags.ControlPan |
BufferFlags.ControlEffects
};
//des.Flags = BufferFlags.GlobalFocus | BufferFlags.Software;
//buffer
DATA = new byte[BufferSize];
buffer = new SecondarySoundBuffer(_SoundDevice, des);
buffer.Play(0, PlayFlags.Looping);
//channels
InitChannels();
Debug.WriteLine(this, "APU initialized ok !!", DebugStatus.Cool);
}
/// <summary>
/// Releases unmanaged and - optionally - managed resources
/// </summary>
///
/// <param name="disposing"><c>true</c> to release both managed and unmanaged
/// resources; <c>false</c> to release only unmanaged resources.</param>
///
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
// free managed resources
if (buffer != null)
{
buffer.Dispose();
buffer = null;
}
}
}
private static void Play(double frequency, double duration, int iType)
{
Initialise();
try
{
int sampleCount = (int)(duration * waveFormat.SamplesPerSecond);
// buffer description
SoundBufferDescription soundBufferDescription = new SoundBufferDescription();
soundBufferDescription.Format = waveFormat;
soundBufferDescription.Flags = BufferFlags.Defer;
soundBufferDescription.SizeInBytes = sampleCount * waveFormat.BlockAlignment;
SecondarySoundBuffer secondarySoundBuffer = new SecondarySoundBuffer(directSound, soundBufferDescription);
short[] rawsamples = new short[sampleCount];
double frac, value;
switch (iType)
{
case 1: //Sinusoidal
for (int i = 0; i < sampleCount; i++)
{
frac = frequency * duration * i / (double)sampleCount;
value = System.Math.Sin(2.0 * System.Math.PI * frac);
rawsamples[i] = (short)(amplitude * value);
}
break;
case 2: //Square
for (int i = 0; i < sampleCount; i++)
{
frac = frequency * duration * i / (double)sampleCount;
frac = frac - (int)frac;
value = frac < 0.5 ? -1.0 : 1.0;
rawsamples[i] = (short)(amplitude * value);
}
break;
}
//load audio samples to secondary buffer
secondarySoundBuffer.Write(rawsamples, 0, LockFlags.EntireBuffer);
//play audio buffer
secondarySoundBuffer.Play(0, PlayFlags.None);
//wait to complete before returning
while ((secondarySoundBuffer.Status & BufferStatus.Playing) != 0);
secondarySoundBuffer.Dispose();
}
catch (Exception ex)
{
TextWindow.WriteLine(ex.Message);
}
}
public Buffer(string name, SecondarySoundBuffer secondarySoundBuffer, double frequency, double duration, bool bDispose = true)
{
this.name = name;
this.secondarySoundBuffer = secondarySoundBuffer;
this.frequency = frequency;
this.duration = duration;
this.bDispose = bDispose;
bPlaying = true;
bLoop = LDWaveForm.bLoop;
}
