OverlayProperties | API reference

public final class OverlayProperties
extends Object implements Parcelable

Provides supported overlay properties of the device.

Hardware overlay is a technique to composite different buffers directly to the screen using display hardware rather than the GPU. The system compositor is able to assign any content managed by a SurfaceControl onto a hardware overlay if possible. Applications may be interested in the display hardware capabilities exposed by this class as a hint to determine if their SurfaceControl tree is power-efficient and performant.

Summary

Inherited constants

From interface android.os.Parcelable

`int`	`CONTENTS_FILE_DESCRIPTOR` Descriptor bit used with `describeContents()`: indicates that the Parcelable object's flattened representation includes a file descriptor.
`int`	`PARCELABLE_WRITE_RETURN_VALUE` Flag for use with `writeToParcel(Parcel, int)`: the object being written is a return value, that is the result of a function such as "`Parcelable someFunction()`", "`void someFunction(out Parcelable)`", or "`void someFunction(inout Parcelable)`".

Fields
`public static final Creator<OverlayProperties>`	`CREATOR`

Public methods
`int`	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`LutProperties[]`	`getLutProperties()` Returns the lut properties of the device.
`boolean`	`isCombinationSupported(int dataspace, int format)` Indicates that hardware composition of a buffer encoded with the provided `DataSpace` and `ERROR(HardwareBuffer.Format/android.hardware.HardwareBuffer.Format HardwareBuffer.Format)` is supported on the device.
`boolean`	`isMixedColorSpacesSupported()` Indicates that hardware composition of two or more overlays with different colorspaces is supported on the device.
`void`	`writeToParcel(Parcel dest, int flags)` Flatten this object in to a Parcel.

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.

From interface android.os.Parcelable

`abstract int`	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`abstract void`	`writeToParcel(Parcel dest, int flags)` Flatten this object in to a Parcel.

Fields

Public methods

describeContents

public int describeContents ()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(Parcel,int), the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.

Returns
`int`	a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either `0` or `CONTENTS_FILE_DESCRIPTOR`

isMixedColorSpacesSupported

public boolean isMixedColorSpacesSupported ()

Indicates that hardware composition of two or more overlays with different colorspaces is supported on the device.

Returns
`boolean`	True if the device can support mixed colorspaces efficiently, false if GPU composition fallback is otherwise required.

Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.