DisplayLuts.Entry Constructors

Definition

Namespace:: Android.Hardware

Assembly:: Mono.Android.dll

Important

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Overloads

Name	Description
DisplayLuts.Entry(IntPtr, JniHandleOwnership)	Creates a managed instance that represents an existing Java object.
DisplayLuts.Entry(Single[], Int32, Int32)	Create a Lut entry.

DisplayLuts.Entry(IntPtr, JniHandleOwnership)

Creates a managed instance that represents an existing Java object.

protected Entry(IntPtr javaReference, Android.Runtime.JniHandleOwnership transfer);

new Android.Hardware.DisplayLuts.Entry : nativeint * Android.Runtime.JniHandleOwnership -> Android.Hardware.DisplayLuts.Entry

Parameters

javaReference: IntPtr
nativeint

A JNI reference to the Java object.

transfer: JniHandleOwnership

Specifies whether ownership of the JNI reference transfers to this instance.

Remarks

The runtime calls this constructor to create a managed representation of an existing Java object.

Applies to

DisplayLuts.Entry(Single[], Int32, Int32)

Create a Lut entry.

[Android.Runtime.Register(".ctor", "([FII)V", "", ApiSince=36)]
public Entry(float[] buffer, int dimension, int samplingKey);

[<Android.Runtime.Register(".ctor", "([FII)V", "", ApiSince=36)>]
new Android.Hardware.DisplayLuts.Entry : single[] * int * int -> Android.Hardware.DisplayLuts.Entry

Parameters

buffer: Single[]

The raw lut data

dimension: Int32

Either 1D or 3D

samplingKey: Int32

The sampling kay used for the Lut

Attributes: RegisterAttribute

Remarks

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]

</p>

Java documentation for android.hardware.DisplayLuts.Entry.DisplayLuts$Entry(float[], int, int).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to