Hin-Tak, what do you mean by "Google OT-SVG fonts"? They're only one OT-SVG format.
On Tue, 4 Jul 2023, 19:15 Hin-Tak Leung, <ht...@users.sourceforge.net> wrote: > (Cross-posted to freetype-devel) > > It seems that skia itself has all the rsvg equivalent to implement the > ot-svg renderer callback hooks in freetype, but skia-python is missing the > python equivalent of SKSVGDOM::renderNode() . This means that if I re-write > the rsvg-based python svgrender hooks with skia-python, it would only work > with Adobe/Mozilla OT-SVG fonts, but not Google OT-SVG fonts (until > skia-python improves). > > I think I'll give it a go and try to put an example out under > freetype-py/examples (probably will call it "ot-svg-example-skia.py", after > the other "ot-svg-example.py") . If the Freetype folks want to port to > freetype2-demos, and add the missing renderNode() to support all OT-SVG (I > mean Google OT-SVG fonts...) with a different svg rendering engine than > rsvg, they can fish it out of freetype-py/examples ... :-). > > On Tuesday, 4 July 2023 at 21:58:10 GMT+8, Hin-Tak Leung < > ht...@users.sourceforge.net> wrote: > > > On Tuesday, 4 July 2023 at 21:30:56 GMT+8, Dominik Röttsches < > dr...@google.com> wrote: > > > ... I don't think it would be the right architectural choice to > redundantly repeat these concepts inside FreeType itself. Even more so, as > fast compositing and gradient implementations require time and effort to > make them reasonably fast. > > > It isn't repeating these concepts in Freetype. Currently, in one (actually > two, c and python) implementation, Freetype farms off rendering of OT-SVG > glyphs to rsvg, which in turn is cairo-based, to do the actual rendering. > FreeType just provides a plug-in system which allows an external library to > do the rendering. Basically Freetype gives out the glyph svg outlines etc, > and the external library fill in the extent and the actual buffer of a > rendered bitmap. This allows any freetype-based applications to use OT-SVG > fonts. > _______________________________________________ > mpeg-otspec mailing list > mpeg-ots...@lists.aau.at > https://lists.aau.at/mailman/listinfo/mpeg-otspec > >
