Pdf.js: Use OffscreenCanvas if available

Created on 5 Sep 2018  路  3Comments  路  Source: mozilla/pdf.js

"Now you can render your graphics off the main thread with OffscreenCanvas"

https://developers.google.com/web/updates/2018/08/offscreen-canvas

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picture aaronshaf
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This should give a performance boost for Chrome since in my observations rendering takes some time, especially when rendering many different pdfs including changing zoom levels. Is there already a plan to integrate this feature?

picture phal0r on 19 May 2019
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Interesting find. If we can feature-detect this, we could try benchmarking this.

timvandermeij picture timvandermeij on 5 Sep 2018

@timvandermeij it is feature-detectable, see example here: https://developers.google.com/web/updates/2018/08/offscreen-canvas#use_with_popular_libraries

websirnik picture websirnik on 10 Sep 2018

This should give a performance boost for Chrome since in my observations rendering takes some time, especially when rendering many different pdfs including changing zoom levels. Is there already a plan to integrate this feature?

phal0r picture phal0r on 19 May 2019
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