DisplayLuts.Entry

Kotlin |Java

public static class DisplayLuts.Entry
extends Object

java.lang.Object
↳	android.hardware.DisplayLuts.Entry

Summary

Public constructors
`Entry(float[] buffer, int dimension, int samplingKey)` Create a Lut entry.

Public methods
`float[]`	`getBuffer()`
`int`	`getDimension()`
`int`	`getSamplingKey()`
`String`	`toString()` Returns a string representation of the object.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public constructors

Entry

Added in API level 36

public Entry (float[] buffer, 
                int dimension, 
                int samplingKey)

Create a Lut entry.

1D Lut(s) are treated as gain curves.

3D Lut(s) are used for direct color manipulations.

For 3D Lut(s), the values should be normalized to the range 0.0 to 1.0, inclusive. And 1.0 is the maximum panel luminance. And If N is the size of each dimension, the data is arranged in RGB order:

 R(0, 0, 0), R(0, 0, 1), ..., R(0, 0, N - 1),
 R(0, 1, 0), ..., R(0, 1, N - 1), ..., R(0, N - 1, N - 1),
 R(1, 0, 0), ..., R(1, 0, N - 1), ..., R(1, N - 1, N - 1), ..., R(N - 1, N - 1, N - 1),
 G(0, 0, 0), ..., G(N - 1, N - 1, N - 1),
 B(0, 0, 0), ..., B(N - 1, N - 1, N - 1)

When a GPU shader samples 3D Lut data, it's accessed in a flat, one-dimensional arrangement. Assuming that we have a 3D array ORIGINAL[N][N][N], then

 FLAT[z + N * (y + N * x)] = ORIGINAL[x][y][z]

Parameters
`buffer`	`float`: The raw lut data This value cannot be `null`.
`dimension`	`int`: Either 1D or 3D Value is `LutProperties.ONE_DIMENSION`, or `LutProperties.THREE_DIMENSION`
`samplingKey`	`int`: The sampling kay used for the Lut Value is `LutProperties.SAMPLING_KEY_RGB`, `LutProperties.SAMPLING_KEY_MAX_RGB`, or `LutProperties.SAMPLING_KEY_CIE_Y`

Public methods

getBuffer

Added in API level 36

public float[] getBuffer ()

Returns
`float[]`	the lut raw data of the lut This value cannot be `null`.

getDimension

Added in API level 36

public int getDimension ()

Returns
`int`	the dimension of the lut entry

getSamplingKey

Added in API level 36

public int getSamplingKey ()

Returns
`int`	the sampling key used by the lut

toString

Added in API level 36

public String toString ()

Returns a string representation of the object.

Returns
`String`	a string representation of the object.