On 11/11/14 1:02 PM, Robert O'Callahan wrote:
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.
I think that this was probably mistranscribed and/or missing context. I
wasn't in this meeting, but I would assume that this was talking about
Servo at an earlier stage of development, when people were thinking
about writing a rasterizer just to see what the performance would be. We
have a box-shadow PR and a work-in-progress border-radius
implementation, after all.
Incidentally, I see no reason to move away from Azure, given how nice
Direct2D is on Windows. Nor do I think that it realistically makes sense
to write our own rasterizer, given that we have no reason to believe
that we'll do better than Direct2D/Skia-GL and the security track record
of Azure/Moz2D is, based on my analysis, much better than that of (for
example) layout or the DOM. As I said earlier, I wasn't in this meeting
and I do not think that we should make any architectural decisions as a
result of it.
Patrick
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