RenderRequest
class RenderRequest
| kotlin.Any | |
| ↳ | android.graphics.HardwareBufferRenderer.RenderRequest |
Sets the parameters that can be used to control a render request for a HardwareBufferRenderer. This is not thread-safe and must not be held on to for longer than a single request.
Summary
| Public methods | |
|---|---|
| Unit |
draw(executor: Executor, renderCallback: Consumer<HardwareBufferRenderer.RenderResult!>)Syncs the RenderNode tree to the render thread and requests content to be drawn. |
| HardwareBufferRenderer.RenderRequest |
setBufferTransform(bufferTransform: Int)Specifies a transform to be applied before content is rendered. |
| HardwareBufferRenderer.RenderRequest |
setColorSpace(colorSpace: ColorSpace?)Configures the color space which the content should be rendered in. |
Public methods
draw
fun draw(
executor: Executor,
renderCallback: Consumer<HardwareBufferRenderer.RenderResult!>
): Unit
Syncs the RenderNode tree to the render thread and requests content to be drawn. This RenderRequest instance should no longer be used after calling this method. The system internally may reuse instances of RenderRequest to reduce allocation churn.
| Parameters | |
|---|---|
executor |
Executor: Executor used to deliver callbacks This value cannot be null. |
renderCallback |
Consumer<HardwareBufferRenderer.RenderResult!>: Callback invoked when rendering is complete. This includes a RenderResult that provides a SyncFence that should be waited upon for completion before consuming the rendered output in the provided HardwareBuffer instance. This value cannot be null. |
| Exceptions | |
|---|---|
java.lang.IllegalStateException |
if attempt to draw is made when HardwareBufferRenderer#isClosed() returns true |
setBufferTransform
fun setBufferTransform(bufferTransform: Int): HardwareBufferRenderer.RenderRequest
Specifies a transform to be applied before content is rendered. This is useful for pre-rotating content for the current display orientation to increase performance of displaying the associated buffer. This transformation will also adjust the light source position for the specified rotation.
| Parameters | |
|---|---|
bufferTransform |
Int: Value is android.view.SurfaceControl#BUFFER_TRANSFORM_IDENTITY, android.view.SurfaceControl#BUFFER_TRANSFORM_MIRROR_HORIZONTAL, android.view.SurfaceControl#BUFFER_TRANSFORM_MIRROR_VERTICAL, android.view.SurfaceControl#BUFFER_TRANSFORM_ROTATE_90, android.view.SurfaceControl#BUFFER_TRANSFORM_ROTATE_180, android.view.SurfaceControl#BUFFER_TRANSFORM_ROTATE_270, BUFFER_TRANSFORM_MIRROR_HORIZONTAL | BUFFER_TRANSFORM_ROTATE_90, or BUFFER_TRANSFORM_MIRROR_VERTICAL | BUFFER_TRANSFORM_ROTATE_90 |
| Return | |
|---|---|
HardwareBufferRenderer.RenderRequest |
This value cannot be null. |
setColorSpace
fun setColorSpace(colorSpace: ColorSpace?): HardwareBufferRenderer.RenderRequest
Configures the color space which the content should be rendered in. This affects how the framework will interpret the color at each pixel. The color space provided here must be non-null, RGB based and leverage an ICC parametric curve. The min/max values of the components should not reduce the numerical range compared to the previously assigned color space. If left unspecified, the default color space of SRGB will be used.
| Parameters | |
|---|---|
colorSpace |
ColorSpace?: The color space the content should be rendered in. If null is provided the default of SRGB will be used. |