Loading the wall causes the canvas renderer to stutter #83

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opened 2024-09-03 23:04:21 +02:00 by liquidev · 0 comments

liquidev commented

2024-09-03 23:04:21 +02:00

(Migrated from github.com)

This is probably because we're doing a stupid roundtrip after decoding the received image. Instead of decoding the WebP and writing it as canvas data directly, we instead:

Update an OffscreenCanvas, which we need to extract pixels from the ImageBitmap.
Update the haku Pixmap.
Update the WebGL image from the haku Pixmap.

I'm not sure which is the slowest here, but it uses a lot more memory than needed, and duplicates a lot of work. I wonder what we can do to make this faster.

This is probably because we're doing a stupid roundtrip after decoding the received image. Instead of decoding the WebP and writing it as canvas data directly, we instead: - Update an `OffscreenCanvas`, which we need to extract pixels from the `ImageBitmap`. - Update the haku `Pixmap`. - Update the WebGL image from the haku `Pixmap`. I'm not sure which is the slowest here, but it uses a lot more memory than needed, and duplicates a lot of work. I wonder what we can do to make this faster.