HardwareBuffer Class
Definition
Important
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HardwareBuffer wraps a native AHardwareBuffer
object, which is a low-level object
representing a memory buffer accessible by various hardware units.
[Android.Runtime.Register("android/hardware/HardwareBuffer", ApiSince=26, DoNotGenerateAcw=true)]
public sealed class HardwareBuffer : Java.Lang.Object, Android.OS.IParcelable, IDisposable, Java.Interop.IJavaPeerable, Java.Lang.IAutoCloseable
[<Android.Runtime.Register("android/hardware/HardwareBuffer", ApiSince=26, DoNotGenerateAcw=true)>]
type HardwareBuffer = class
inherit Object
interface IParcelable
interface IJavaObject
interface IDisposable
interface IJavaPeerable
interface IAutoCloseable
- Inheritance
- Attributes
- Implements
Remarks
HardwareBuffer wraps a native AHardwareBuffer
object, which is a low-level object representing a memory buffer accessible by various hardware units. HardwareBuffer allows sharing buffers across different application processes. In particular, HardwareBuffers may be mappable to memory accessibly to various hardware systems, such as the GPU, a sensor or context hub, or other auxiliary processing units.
For more information, see the NDK documentation for AHardwareBuffer
.
Java documentation for android.hardware.HardwareBuffer
.
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.
Fields
UsageComposerOverlay |
The buffer will be used as a hardware composer overlay layer. |
UsageCpuReadOften |
Usage: The buffer will often be read by the CPU |
UsageCpuReadRarely |
Usage: The buffer will sometimes be read by the CPU |
UsageCpuWriteOften |
Usage: The buffer will often be written to by the CPU |
UsageCpuWriteRarely |
Usage: The buffer will sometimes be written to by the CPU |
UsageFrontBuffer |
Usage: The buffer is used for front-buffer rendering. |
UsageGpuColorOutput |
Usage: The buffer will be written to by the GPU |
UsageGpuCubeMap |
Usage: The buffer will be used as a cube map texture |
UsageGpuDataBuffer |
Usage: The buffer will be used as a shader storage or uniform buffer object |
UsageGpuMipmapComplete |
Usage: The buffer contains a complete mipmap hierarchy |
UsageGpuSampledImage |
Usage: The buffer will be read from by the GPU |
UsageProtectedContent |
Usage: The buffer must not be used outside of a protected hardware path |
UsageSensorDirectData |
Usage: The buffer will be used for sensor direct data |
UsageVideoEncode |
Usage: The buffer will be read by a hardware video encoder |
Ycbcr420888 |
Obsolete.
Format: Planar YCbCr 420; must have an even width and height |
YcbcrP010 |
Obsolete.
Android YUV P010 format. |
Properties
Class |
Returns the runtime class of this |
Creator | |
Format |
Returns the |
Handle |
The handle to the underlying Android instance. (Inherited from Object) |
Height |
Returns the height of this buffer in pixels. |
Id |
Returns the system-wide unique id for this buffer |
IsClosed |
Indicates whether this buffer has been closed. |
JniIdentityHashCode | (Inherited from Object) |
JniPeerMembers | |
Layers |
Returns the number of layers in this buffer. |
PeerReference | (Inherited from Object) |
ThresholdClass |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from Object) |
ThresholdType |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from Object) |
Width |
Returns the width of this buffer in pixels. |
Methods
Clone() |
Creates and returns a copy of this object. (Inherited from Object) |
Close() |
Destroys this buffer immediately. |
DescribeContents() | |
Dispose() | (Inherited from Object) |
Dispose(Boolean) | (Inherited from Object) |
Equals(Object) |
Indicates whether some other object is "equal to" this one. (Inherited from Object) |
GetHashCode() |
Returns a hash code value for the object. (Inherited from Object) |
JavaFinalize() |
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object) |
Notify() |
Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object) |
NotifyAll() |
Wakes up all threads that are waiting on this object's monitor. (Inherited from Object) |
SetHandle(IntPtr, JniHandleOwnership) |
Sets the Handle property. (Inherited from Object) |
ToArray<T>() | (Inherited from Object) |
ToString() |
Returns a string representation of the object. (Inherited from Object) |
UnregisterFromRuntime() | (Inherited from Object) |
Wait() |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object) |
Wait(Int64, Int32) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
Wait(Int64) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
WriteToParcel(Parcel, ParcelableWriteFlags) |
Flatten this object in to a Parcel. |
Explicit Interface Implementations
IJavaPeerable.Disposed() | (Inherited from Object) |
IJavaPeerable.DisposeUnlessReferenced() | (Inherited from Object) |
IJavaPeerable.Finalized() | (Inherited from Object) |
IJavaPeerable.JniManagedPeerState | (Inherited from Object) |
IJavaPeerable.SetJniIdentityHashCode(Int32) | (Inherited from Object) |
IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) | (Inherited from Object) |
IJavaPeerable.SetPeerReference(JniObjectReference) | (Inherited from Object) |
Extension Methods
JavaCast<TResult>(IJavaObject) |
Performs an Android runtime-checked type conversion. |
JavaCast<TResult>(IJavaObject) | |
GetJniTypeName(IJavaPeerable) |