java.lang.Object
- org.lwjgl.openal.SOFTLoopback

```
public class SOFTLoopback
extends java.lang.Object
```
Native bindings to the SOFT_loopback extension.
This extension allows an application to read back OpenAL's rendered audio instead of having it output to an audio device on the system. Unextended OpenAL will output audio to an audio device, with no mechanism to allow an application to divert the audio somewhere else.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`ALC_5POINT1_SOFT ALC_6POINT1_SOFT ALC_7POINT1_SOFT` Accepted by the `channels` parameter of `IsRenderFormatSupportedSOFT`.
`static int`	`ALC_BYTE_SOFT ALC_FLOAT_SOFT` Accepted by the `type` parameter of `IsRenderFormatSupportedSOFT`.
`static int`	`ALC_FORMAT_CHANNELS_SOFT ALC_FORMAT_TYPE_SOFT` Accepted as part of the `attrList` parameter of `CreateContext`.
`static int`	`ALC_INT_SOFT` Accepted by the `type` parameter of `IsRenderFormatSupportedSOFT`.
`static int`	`ALC_MONO_SOFT ALC_QUAD_SOFT` Accepted by the `channels` parameter of `IsRenderFormatSupportedSOFT`.
`static int`	`ALC_SHORT_SOFT` Accepted by the `type` parameter of `IsRenderFormatSupportedSOFT`.
`static int`	`ALC_STEREO_SOFT` Accepted by the `channels` parameter of `IsRenderFormatSupportedSOFT`.
`static int`	`ALC_UNSIGNED_BYTE_SOFT ALC_UNSIGNED_INT_SOFT ALC_UNSIGNED_SHORT_SOFT` Accepted by the `type` parameter of `IsRenderFormatSupportedSOFT`.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static boolean`	`alcIsRenderFormatSupportedSOFT(long device, int frequency, int channels, int type)` When creating contexts, the attribute list must specify the format used for rendering.
`static long`	`alcLoopbackOpenDeviceSOFT(java.nio.ByteBuffer deviceName)` Loopback devices provide a way for applications to "read back" rendered audio without it being sent to an actual audio device.
`static long`	`alcLoopbackOpenDeviceSOFT(java.lang.CharSequence deviceName)` Loopback devices provide a way for applications to "read back" rendered audio without it being sent to an actual audio device.
`static void`	`alcRenderSamplesSOFT(long device, java.nio.ByteBuffer buffer, int samples)` The state of various objects on loopback devices (including processed buffers and source offsets) is processed only when new samples are rendered.
`static void`	`alcRenderSamplesSOFT(long device, float[] buffer, int samples)` float[] version of: `RenderSamplesSOFT`
`static void`	`alcRenderSamplesSOFT(long device, java.nio.FloatBuffer buffer, int samples)` FloatBuffer version of: `RenderSamplesSOFT`
`static void`	`alcRenderSamplesSOFT(long device, int[] buffer, int samples)` int[] version of: `RenderSamplesSOFT`
`static void`	`alcRenderSamplesSOFT(long device, java.nio.IntBuffer buffer, int samples)` IntBuffer version of: `RenderSamplesSOFT`
`static void`	`alcRenderSamplesSOFT(long device, short[] buffer, int samples)` short[] version of: `RenderSamplesSOFT`
`static void`	`alcRenderSamplesSOFT(long device, java.nio.ShortBuffer buffer, int samples)` ShortBuffer version of: `RenderSamplesSOFT`

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - ALC_BYTE_SOFT
```
public static final int ALC_BYTE_SOFT
```
    Accepted by the type parameter of IsRenderFormatSupportedSOFT.
    
    See Also:
    
    Constant Field Values
  - ALC_UNSIGNED_BYTE_SOFT
```
public static final int ALC_UNSIGNED_BYTE_SOFT
```
    Accepted by the type parameter of IsRenderFormatSupportedSOFT.
    
    See Also:
    
    Constant Field Values
  - ALC_SHORT_SOFT
```
public static final int ALC_SHORT_SOFT
```
    Accepted by the type parameter of IsRenderFormatSupportedSOFT.
    
    See Also:
    
    Constant Field Values
  - ALC_UNSIGNED_SHORT_SOFT
```
public static final int ALC_UNSIGNED_SHORT_SOFT
```
    Accepted by the type parameter of IsRenderFormatSupportedSOFT.
    
    See Also:
    
    Constant Field Values
  - ALC_INT_SOFT
```
public static final int ALC_INT_SOFT
```
    Accepted by the type parameter of IsRenderFormatSupportedSOFT.
    
    See Also:
    
    Constant Field Values
  - ALC_UNSIGNED_INT_SOFT
```
public static final int ALC_UNSIGNED_INT_SOFT
```
    Accepted by the type parameter of IsRenderFormatSupportedSOFT.
    
    See Also:
    
    Constant Field Values
  - ALC_FLOAT_SOFT
```
public static final int ALC_FLOAT_SOFT
```
    Accepted by the type parameter of IsRenderFormatSupportedSOFT.
    
    See Also:
    
    Constant Field Values
  - ALC_MONO_SOFT
```
public static final int ALC_MONO_SOFT
```
    Accepted by the channels parameter of IsRenderFormatSupportedSOFT.
    
    See Also:
    
    Constant Field Values
  - ALC_STEREO_SOFT
```
public static final int ALC_STEREO_SOFT
```
    Accepted by the channels parameter of IsRenderFormatSupportedSOFT.
    
    See Also:
    
    Constant Field Values
  - ALC_QUAD_SOFT
```
public static final int ALC_QUAD_SOFT
```
    Accepted by the channels parameter of IsRenderFormatSupportedSOFT.
    
    See Also:
    
    Constant Field Values
  - ALC_5POINT1_SOFT
```
public static final int ALC_5POINT1_SOFT
```
    Accepted by the channels parameter of IsRenderFormatSupportedSOFT.
    
    See Also:
    
    Constant Field Values
  - ALC_6POINT1_SOFT
```
public static final int ALC_6POINT1_SOFT
```
    Accepted by the channels parameter of IsRenderFormatSupportedSOFT.
    
    See Also:
    
    Constant Field Values
  - ALC_7POINT1_SOFT
```
public static final int ALC_7POINT1_SOFT
```
    Accepted by the channels parameter of IsRenderFormatSupportedSOFT.
    
    See Also:
    
    Constant Field Values
  - ALC_FORMAT_CHANNELS_SOFT
```
public static final int ALC_FORMAT_CHANNELS_SOFT
```
    Accepted as part of the attrList parameter of CreateContext.
    
    See Also:
    
    Constant Field Values
  - ALC_FORMAT_TYPE_SOFT
```
public static final int ALC_FORMAT_TYPE_SOFT
```
    Accepted as part of the attrList parameter of CreateContext.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - alcLoopbackOpenDeviceSOFT
```
public static long alcLoopbackOpenDeviceSOFT(java.nio.ByteBuffer deviceName)
```
    Loopback devices provide a way for applications to "read back" rendered audio without it being sent to an actual audio device. It allows applications to render audio as fast or slow as it needs, making it suitable for non-real-time rendering, and so it can be passed to an audio codec or something for further processing.
    To open a loopback device, use this function.
    
    A loopback device behaves largely the same as a playback device. You may query playback state and error codes, and create contexts, which can then be set as current to generate sources and buffers like normal.
    
    Note that loopback devices do not have either the SYNC or REFRESH attributes. Attempting to query them will result in an INVALID_ENUM error.
    
    Parameters:
    
    deviceName - which device or device driver to use for subsequent rendering. This may be NULL for an implementation-defined default, otherwise it must be a valid name returned by enumeration (and further must be a device capable of loopback rendering).
  - alcLoopbackOpenDeviceSOFT
```
public static long alcLoopbackOpenDeviceSOFT(java.lang.CharSequence deviceName)
```
    Loopback devices provide a way for applications to "read back" rendered audio without it being sent to an actual audio device. It allows applications to render audio as fast or slow as it needs, making it suitable for non-real-time rendering, and so it can be passed to an audio codec or something for further processing.
    To open a loopback device, use this function.
    
    A loopback device behaves largely the same as a playback device. You may query playback state and error codes, and create contexts, which can then be set as current to generate sources and buffers like normal.
    
    Note that loopback devices do not have either the SYNC or REFRESH attributes. Attempting to query them will result in an INVALID_ENUM error.
    
    Parameters:
    
    deviceName - which device or device driver to use for subsequent rendering. This may be NULL for an implementation-defined default, otherwise it must be a valid name returned by enumeration (and further must be a device capable of loopback rendering).
  - alcIsRenderFormatSupportedSOFT
```
public static boolean alcIsRenderFormatSupportedSOFT(long device,
                                                     int frequency,
                                                     int channels,
                                                     int type)
```
    When creating contexts, the attribute list must specify the format used for rendering. This is done with the FORMAT_CHANNELS_SOFT, FORMAT_TYPE_SOFT, and FREQUENCY attributes. This controls the format of the audio subsequently rendered by the device.
    To check if a particular rendering format is available, use this function.
    
    Parameters:
    
    device - the loopback device to query
    
    frequency - the sample rate of the rendered audio
    
    channels - the channel configuration used for rendering. One of:
    MONO_SOFT STEREO_SOFT QUAD_SOFT 5POINT1_SOFT 6POINT1_SOFT 7POINT1_SOFT
    
    type - sample type of the written audio. One of:
    BYTE_SOFT UNSIGNED_BYTE_SOFT SHORT_SOFT UNSIGNED_SHORT_SOFT INT_SOFT UNSIGNED_INT_SOFT
    FLOAT_SOFT
  - alcRenderSamplesSOFT
```
public static void alcRenderSamplesSOFT(long device,
                                        java.nio.ByteBuffer buffer,
                                        int samples)
```
    The state of various objects on loopback devices (including processed buffers and source offsets) is processed only when new samples are rendered. To render samples, use this function.
    
    Parameters:
    
    device - the loopback device which samples are rendered from, using its contexts and associated buffers and sources
    
    buffer - the buffer to write to
    
    samples - the number of sample frames to render
  - alcRenderSamplesSOFT
```
public static void alcRenderSamplesSOFT(long device,
                                        java.nio.ShortBuffer buffer,
                                        int samples)
```
    ShortBuffer version of: RenderSamplesSOFT
  - alcRenderSamplesSOFT
```
public static void alcRenderSamplesSOFT(long device,
                                        java.nio.IntBuffer buffer,
                                        int samples)
```
    IntBuffer version of: RenderSamplesSOFT
  - alcRenderSamplesSOFT
```
public static void alcRenderSamplesSOFT(long device,
                                        java.nio.FloatBuffer buffer,
                                        int samples)
```
    FloatBuffer version of: RenderSamplesSOFT
  - alcRenderSamplesSOFT
```
public static void alcRenderSamplesSOFT(long device,
                                        short[] buffer,
                                        int samples)
```
    short[] version of: RenderSamplesSOFT
  - alcRenderSamplesSOFT
```
public static void alcRenderSamplesSOFT(long device,
                                        int[] buffer,
                                        int samples)
```
    int[] version of: RenderSamplesSOFT
  - alcRenderSamplesSOFT
```
public static void alcRenderSamplesSOFT(long device,
                                        float[] buffer,
                                        int samples)
```
    float[] version of: RenderSamplesSOFT

`BYTE_SOFT`	`UNSIGNED_BYTE_SOFT`	`SHORT_SOFT`	`UNSIGNED_SHORT_SOFT`	`INT_SOFT`	`UNSIGNED_INT_SOFT`
`FLOAT_SOFT`

Class SOFTLoopback

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

ALC_BYTE_SOFT

ALC_UNSIGNED_BYTE_SOFT

ALC_SHORT_SOFT

ALC_UNSIGNED_SHORT_SOFT

ALC_INT_SOFT

ALC_UNSIGNED_INT_SOFT

ALC_FLOAT_SOFT

ALC_MONO_SOFT

ALC_STEREO_SOFT

ALC_QUAD_SOFT

ALC_5POINT1_SOFT

ALC_6POINT1_SOFT

ALC_7POINT1_SOFT

ALC_FORMAT_CHANNELS_SOFT

ALC_FORMAT_TYPE_SOFT

Method Detail

alcLoopbackOpenDeviceSOFT

alcLoopbackOpenDeviceSOFT

alcIsRenderFormatSupportedSOFT

alcRenderSamplesSOFT

alcRenderSamplesSOFT

alcRenderSamplesSOFT

alcRenderSamplesSOFT

alcRenderSamplesSOFT

alcRenderSamplesSOFT

alcRenderSamplesSOFT