On Fri, 11 Aug 2023 17:19:40 GMT, Alexander Zvegintsev <azveg...@openjdk.org>
wrote:
> Right now, each call to getPixelColor/createScreenCapture opens and closes a
> ScreenCast session.
> When there are many such calls in a row, it becomes a rather time-consuming
> operation.
>
> For example,
>
>
> for (int i = 0; i < 50; i++) {
> for (int j = 0; j < 50; j++) {
> robot.getPixelColor(i, j);
> }
> }
>
> `50x50 took 375219ms`
>
> This fix offers optimization by keeping the session open and closing it only
> 2 seconds after the last activity.
>
> `50x50 took 28113ms` which is ~ 13 times faster.
>
> Testing looks good.
This pull request has now been integrated.
Changeset: 2f04bc5f
Author: Alexander Zvegintsev <azveg...@openjdk.org>
URL:
https://git.openjdk.org/jdk/commit/2f04bc5f934887029d8bcc13cf722d8498a35120
Stats: 171 lines in 7 files changed: 121 ins; 23 del; 27 mod
8313697: [XWayland][Screencast] consequent getPixelColor calls are slow
8310334: [XWayland][Screencast] screen capture error message in debug
Reviewed-by: serb, prr
-------------
PR: https://git.openjdk.org/jdk/pull/15250
