834359 - Canvas drawImage() and fillText() needs to be faster

Status: RESOLVED INCOMPLETE

(Firefox for Android Graveyard :: Toolbar, defect)

Description

[James Willcox (:snorp) ([e-mail]) (he/him)]

With pdf.js on Android, drawing can be glacially slow. In profiling, most time seems to be spent in fillText() and (if the PDF has images, at least) drawImage().

Comment 1

[James Willcox (:snorp) ([e-mail]) (he/him)]

Some of this is solved by using SkiaGL (specificall, drawImage() is mostly better). Should be revisited.

Comment 2

[James Willcox (:snorp) ([e-mail]) (he/him)]

Eugen, can you do some profiling of PDF.js on Android and see if these two are still prominent?

Comment 3

[BMO Automation]

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