HardwareBufferRenderer Class
Definition
Important
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Creates an instance of a hardware-accelerated renderer.
[Android.Runtime.Register("android/graphics/HardwareBufferRenderer", ApiSince=34, DoNotGenerateAcw=true)]
public class HardwareBufferRenderer : Java.Lang.Object, IDisposable, Java.Interop.IJavaPeerable, Java.Lang.IAutoCloseable[<Android.Runtime.Register("android/graphics/HardwareBufferRenderer", ApiSince=34, DoNotGenerateAcw=true)>]
type HardwareBufferRenderer = class
inherit Object
interface IAutoCloseable
interface IJavaObject
interface IDisposable
interface IJavaPeerable- Inheritance
- Attributes
- Implements
Remarks
Creates an instance of a hardware-accelerated renderer. This is used to render a scene built from RenderNodes to an output HardwareBuffer. There can be as many HardwareBufferRenderer instances as desired.
<h3>Resources & lifecycle</h3>
All HardwareBufferRenderer and HardwareRenderer instances share a common render thread. Therefore HardwareBufferRenderer will share common resources and GPU utilization with hardware accelerated rendering initiated by the UI thread of an application. The render thread contains the GPU context & resources necessary to do GPU-accelerated rendering. As such, the first HardwareBufferRenderer created comes with the cost of also creating the associated GPU contexts, however each incremental HardwareBufferRenderer thereafter is fairly cheap. The expected usage is to have a HardwareBufferRenderer instance for every active HardwareBuffer.
This is useful in situations where a scene built with RenderNodes can be consumed directly by the system compositor through SurfaceControl.Transaction#setBuffer(SurfaceControl, HardwareBuffer).
HardwareBufferRenderer will never clear contents before each draw invocation so previous contents in the HardwareBuffer target will be preserved across renders.
Java documentation for android.graphics.HardwareBufferRenderer.
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.
Constructors
| Name | Description |
|---|---|
| HardwareBufferRenderer(HardwareBuffer) |
Creates a new instance of |
| HardwareBufferRenderer(IntPtr, JniHandleOwnership) | |
Properties
| Name | Description |
|---|---|
| Class |
Returns the runtime class of this |
| Handle |
The handle to the underlying Android instance. (Inherited from Object) |
| IsClosed |
Returns if the |
| JniIdentityHashCode |
Gets the identity hash code assigned to this Java peer by the interop runtime. (Inherited from Object) |
| JniPeerMembers | |
| PeerReference |
Gets the JNI object reference for this Java peer. (Inherited from Object) |
| ThresholdClass | |
| ThresholdType | |
Methods
| Name | Description |
|---|---|
| Clone() |
Creates and returns a copy of this object. (Inherited from Object) |
| Close() |
Releases the resources associated with this |
| Dispose() |
Releases the resources held by this Java peer. (Inherited from Object) |
| Dispose(Boolean) |
Releases the resources held by this Java peer. (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) |
| ObtainRenderRequest() | |
| SetContentRoot(RenderNode) |
Sets the content root to render. |
| SetHandle(IntPtr, JniHandleOwnership) |
Sets the Handle property. (Inherited from Object) |
| SetLightSourceAlpha(Single, Single) |
Configures the ambient & spot shadow alphas. |
| SetLightSourceGeometry(Single, Single, Single, Single) |
Sets the center of the light source. |
| ToArray<T>() |
Creates a managed array from this Java array wrapper. (Inherited from Object) |
| ToString() |
Returns a string representation of the object. (Inherited from Object) |
| UnregisterFromRuntime() |
Unregisters this Java peer from the interop runtime. (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) |
Explicit Interface Implementations
| Name | Description |
|---|---|
| IJavaPeerable.Disposed() |
Notifies the interop runtime that this managed peer has been disposed. (Inherited from Object) |
| IJavaPeerable.DisposeUnlessReferenced() |
Releases this Java peer unless it is retained by another managed reference. (Inherited from Object) |
| IJavaPeerable.Finalized() |
Notifies the interop runtime that this managed peer has been finalized. (Inherited from Object) |
| IJavaPeerable.JniManagedPeerState |
Gets the state that describes the relationship between this managed peer and its JNI reference. (Inherited from Object) |
| IJavaPeerable.SetJniIdentityHashCode(Int32) |
Sets the interop identity hash code for this Java peer. (Inherited from Object) |
| IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) |
Sets the managed and JNI peer state for this Java peer. (Inherited from Object) |
| IJavaPeerable.SetPeerReference(JniObjectReference) |
Sets the JNI object reference used by this managed peer. (Inherited from Object) |
Extension Methods
| Name | Description |
|---|---|
| GetJniTypeName(IJavaPeerable) |
Gets the JNI name of the type of the instance |
| JavaAs<TResult>(IJavaPeerable) |
Try to coerce |
| JavaCast<TResult>(IJavaObject) |
Performs an Android runtime-checked type conversion. |
| JavaCast<TResult>(IJavaObject) | |
| TryJavaCast<TResult>(IJavaPeerable, TResult) |
Try to coerce |