pdf.js/test/pdfs/bug857031.pdf.link

https://bug857031.bmoattachments.org/attachment.cgi?id=732270
Improve performances with image masks (bug 857031) - it's the second part of the fix for https://bugzilla.mozilla.org/show_bug.cgi?id=857031; - some image masks can be used several times but at different positions; - an image need to be pre-process before to be rendered: * rescale it; * use the fill color/pattern. - the two operations above are time consuming so we can cache the generated canvas; - the cache key is based on the current transform matrix (without the translation part) and the current fill color when it isn't a pattern. - the rendering of the pdf in the above bug is really faster than without this patch. 2022-04-13 22:44:33 +09:00			`https://bug857031.bmoattachments.org/attachment.cgi?id=732270`