Class AC97

Handles AC97-compatible sound cards at a low-level.

Inheritance
System.Object
AudioDriver
AC97
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Cosmos.HAL.Drivers.Audio
Assembly: Cosmos.HAL2.dll
Syntax
public sealed class AC97 : AudioDriver

Properties

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BufferProvider

Declaration
public override IAudioBufferProvider BufferProvider { get; set; }
Property Value
Type Description
IAudioBufferProvider
Overrides
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Enabled

Declaration
public override bool Enabled { get; }
Property Value
Type Description
System.Boolean
Overrides
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Instance

The global instance of the AC97. This property will return null if the driver has not been initialized.

Declaration
public static AC97 Instance { get; }
Property Value
Type Description
AC97
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PCI

PCI information for the sound card handled by this driver.

Declaration
public PCIDevice PCI { get; set; }
Property Value
Type Description
PCIDevice

Methods

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ChangeBufferSize(UInt16)

Changes the size of the internal buffers. This will result in a slight interruption in audio.

Declaration
public void ChangeBufferSize(ushort newSize)
Parameters
Type Name Description
System.UInt16 newSize

The new buffer size, in samples. This value cannot be an odd number, as per the AC97 specification.
Exceptions
Type Condition
System.ArgumentException

Thrown when the given buffer size is invalid.
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Disable()

Declaration
public override void Disable()
Overrides
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Enable()

Declaration
public override void Enable()
Overrides
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GetSupportedSampleFormats()

Declaration
public override SampleFormat[] GetSupportedSampleFormats()
Returns
Type Description
SampleFormat[]
Overrides
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Initialize(UInt16)

Initializes the AC97 driver. This method will return an existing instance if the driver is already initialized and has a running instance.

Declaration
public static AC97 Initialize(ushort bufferSize)
Parameters
Type Name Description
System.UInt16 bufferSize

The buffer size in samples to use. This value cannot be an odd number, as per the AC97 specification.
Returns
Type Description
AC97
Exceptions
Type Condition
System.ArgumentException

Thrown when the given buffer size is invalid.
System.InvalidOperationException

Thrown when no AC97-compatible sound card is present.
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SetSampleFormat(SampleFormat)

Declaration
public override void SetSampleFormat(SampleFormat sampleFormat)
Parameters
Type Name Description
SampleFormat sampleFormat
Overrides