/// <summary>
/// Initializes a new instance of the <see cref="DirectSoundSecondaryBuffer"/> class.
/// </summary>
/// <param name="directSound">A <see cref="DirectSoundBase"/> instance which provides the <see cref="DirectSoundBase.CreateSoundBuffer"/> method.</param>
/// <param name="bufferDescription">The buffer description which describes the buffer to create.</param>
/// <exception cref="System.ArgumentNullException"><paramref name="directSound"/></exception>
/// <exception cref="System.ArgumentException">
/// The <paramref name="bufferDescription"/> is invalid.
/// </exception>
public DirectSoundSecondaryBuffer(DirectSoundBase directSound, DSBufferDescription bufferDescription)
{
if (directSound == null)
{
throw new ArgumentNullException("directSound");
}
if ((bufferDescription.Flags & DSBufferCapsFlags.PrimaryBuffer) == DSBufferCapsFlags.PrimaryBuffer)
{
throw new ArgumentException("The PrimaryBuffer is set.", "bufferDescription");
}
if (bufferDescription.BufferBytes < 4 || bufferDescription.BufferBytes > 0x0FFFFFFF)
{
throw new ArgumentException("Invalid BufferBytes value.", "bufferDescription");
}
BasePtr = directSound.CreateSoundBuffer(bufferDescription, IntPtr.Zero);
//Create(directSound, bufferDesc);
}
/// <summary>
/// Initializes a new instance of the <see cref="DirectSoundSecondaryBuffer"/> class.
/// </summary>
/// <param name="directSound">A <see cref="DirectSoundBase"/> instance which provides the <see cref="DirectSoundBase.CreateSoundBuffer"/> method.</param>
/// <param name="waveFormat">The <see cref="WaveFormat"/> of the sound buffer.</param>
/// <param name="bufferSize">The buffer size. Internally, the <see cref="DSBufferDescription.BufferBytes"/> will be set to <paramref name="bufferSize"/> * 2.</param>
/// <exception cref="System.ArgumentNullException"><paramref name="directSound"/> or <paramref name="waveFormat"/></exception>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="bufferSize"/> must be a value between 4 and 0x0FFFFFFF.</exception>
public DirectSoundSecondaryBuffer(DirectSoundBase directSound, WaveFormat waveFormat, int bufferSize)
{
if (directSound == null)
{
throw new ArgumentNullException("directSound");
}
if (waveFormat == null)
{
throw new ArgumentNullException("waveFormat");
}
if (bufferSize < 4 || bufferSize > 0x0FFFFFFF)
{
throw new ArgumentOutOfRangeException("bufferSize");
}
DSBufferDescription secondaryBufferDesc = new DSBufferDescription()
{
BufferBytes = bufferSize,
Flags = DSBufferCapsFlags.ControlFrequency | DSBufferCapsFlags.ControlPan |
DSBufferCapsFlags.ControlVolume | DSBufferCapsFlags.ControlPositionNotify |
DSBufferCapsFlags.GetCurrentPosition2 | DSBufferCapsFlags.GlobalFocus |
DSBufferCapsFlags.StickyFocus,
Reserved = 0,
Guid3DAlgorithm = Guid.Empty
};
secondaryBufferDesc.Size = Marshal.SizeOf(secondaryBufferDesc);
GCHandle hWaveFormat = GCHandle.Alloc(waveFormat, GCHandleType.Pinned);
try
{
secondaryBufferDesc.PtrFormat = hWaveFormat.AddrOfPinnedObject();
//Create(directSound, secondaryBufferDesc);
BasePtr = directSound.CreateSoundBuffer(secondaryBufferDesc, IntPtr.Zero);
}
finally
{
hWaveFormat.Free();
}
}
/// <summary>
/// Initializes a new instance of the <see cref="DirectSoundPrimaryBuffer"/> class.
/// </summary>
/// <param name="directSound">A <see cref="DirectSoundBase"/> instance which provides the <see cref="DirectSoundBase.CreateSoundBuffer"/> method.</param>
/// <param name="bufferDescription">The buffer description which describes the buffer to create.</param>
/// <exception cref="ArgumentNullException"><paramref name="directSound"/></exception>
/// <exception cref="ArgumentException">The <paramref name="bufferDescription"/> is invalid.</exception>
public DirectSoundPrimaryBuffer(DirectSoundBase directSound, DSBufferDescription bufferDescription)
{
if (directSound == null)
{
throw new ArgumentNullException("directSound");
}
if ((bufferDescription.Flags & DSBufferCapsFlags.PrimaryBuffer) != DSBufferCapsFlags.PrimaryBuffer)
{
throw new ArgumentException("The PrimaryBuffer flag is not set.", "bufferDescription");
}
if (bufferDescription.BufferBytes != 0)
{
throw new ArgumentException("BufferBytes must be zero.", "bufferDescription");
}
bufferDescription.Size = Marshal.SizeOf(bufferDescription);
if (bufferDescription.PtrFormat != IntPtr.Zero)
{
throw new ArgumentException("PtrFormat must be NULL.", "bufferDescription");
}
BasePtr = directSound.CreateSoundBuffer(bufferDescription, IntPtr.Zero);
}
/// <summary>
/// Initializes a new instance of the <see cref="DirectSoundPrimaryBuffer"/> class.
/// </summary>
/// <param name="directSound">A <see cref="DirectSoundBase"/> instance which provides the <see cref="DirectSoundBase.CreateSoundBuffer"/> method.</param>
/// <exception cref="ArgumentNullException"><paramref name="directSound"/></exception>
public DirectSoundPrimaryBuffer(DirectSoundBase directSound)
: this(directSound, DefaultPrimaryBufferDescription)
{
}
/// <summary>
/// Initializes a sound buffer object if it has not yet been initialized.
/// </summary>
/// <param name="directSound">The device object associated with this buffer.</param>
/// <param name="bufferDescription">A <see cref="DSBufferDescription"/> structure that contains the values used to initialize this sound buffer.</param>
public void Initialize(DirectSoundBase directSound, DSBufferDescription bufferDescription)
{
DirectSoundException.Try(InitializeNative(directSound, bufferDescription), InterfaceName, "Initialize");
}
/// <summary>
/// Initializes a sound buffer object if it has not yet been initialized.
/// </summary>
/// <param name="directSound">The device object associated with this buffer.</param>
/// <param name="bufferDescription">A <see cref="DSBufferDescription"/> structure that contains the values used to initialize this sound buffer.</param>
/// <returns>DSResult</returns>
public DSResult InitializeNative(DirectSoundBase directSound, DSBufferDescription bufferDescription)
{
return(InteropCalls.CalliMethodPtr(UnsafeBasePtr, directSound.BasePtr.ToPointer(), &bufferDescription, ((void **)(*(void **)UnsafeBasePtr))[10]));
}
