https://github.com/servo/servo/wiki/Workweek-rasterization
We talked about writing our own rasterizer, which makes sense because web > pages only render solid colored rectangles, image, and display text. > No. SVG, border-radius (rounded borders plus clipping to rounded shapes), complex border styles, box-shadows and text-shadows are all commonly used, and their performance matters. Plus you want to be able to rasterize these precisely under arbitrary 2D affine transforms. Firefox moved away from stateful APIs due to them being a bugfest, > according to the notes from gfx. > Not really. See http://robert.ocallahan.org/2011/09/graphics-api-design.html for an explanation. Skia is closer to Canvas-style than to the Moz2D style. > Is it? Last time I looked I thought the other way around. E.g. you have SkCanvas::drawArc taking an SkPaint object with all the current drawing state, although admittedly SkPaint is heavier-weight than the Moz2D parameter objects. If you subject Skia to the analysis of my above blog post, I think it lands on the stateless side. The only stacked state in SkCanvas is the transform, the clip and the filter, which is much less than cairo (where almost every possible drawing parameter is part of the context state). Even Moz2D stores transform and clip in the DrawTarget (which is about the minimum you need for it to make sense to pass a DrawTarget to an arbitrary function saying "draw into this", which is essential). Rob -- oIo otoeololo oyooouo otohoaoto oaonoyooonoeo owohooo oioso oaonogoroyo owoiotoho oao oboroootohoeoro oooro osoiosotoeoro owoiololo oboeo osouobojoeocoto otooo ojouodogomoeonoto.o oAogoaoiono,o oaonoyooonoeo owohooo osoaoyoso otooo oao oboroootohoeoro oooro osoiosotoeoro,o o‘oRoaocoao,o’o oioso oaonosowoeoroaoboloeo otooo otohoeo ocooouoroto.o oAonodo oaonoyooonoeo owohooo osoaoyoso,o o‘oYooouo ofooooolo!o’o owoiololo oboeo oiono odoaonogoeoro ooofo otohoeo ofoioroeo ooofo ohoeololo. _______________________________________________ dev-servo mailing list dev-servo@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-servo
