SKP to SVG conversion?

[render dender]

Do you know if there's currently some kind of functionality for converting SKP files to SVG at least with some limited functionality support? I've googled some old code for that but it didn't look like something usable. 

Thought I would ask before starting to write any serialization routines/parsers :)

___
Cheers,

Denis

[Florin Malita]

Take a look at SkSVGCanvas.  You get a canvas that wraps an SVG stream, then you can draw the SKP into it.

DM, one of our test tools, has some conversion functionality built-in, you could try using it directly:

out/Release/dm --src skp --skps <skps_dir> --config svg -w <out_dir>

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[render dender]

Thanks, I'll look into that.

Is there anything specific to be done with the build? Any flags or specific toolchain used? I don't have  dm  generated for some reason. 

среда, 22 февраля 2023 г. в 18:06:21 UTC+3, Florin Malita:

[Florin Malita]

Are you using is_official_build = true?  I think we disable all test apps in "official" builds, you may need to turn that off in order to try dm.

To view this discussion on the web visit https://groups.google.com/d/msgid/skia-discuss/775b8eab-77e1-4434-b1b9-9228e34011fcn%40googlegroups.com.

[render dender]

Thank you. I reinstalled the toolchain and made a clear build successfully.

But I'm having an error with parsing of the .SKPs files. 

I opened it in VS, started debugging and found out my .SKPs are too old and have a version 72, while there's a range of valid versions of 82 - 95 on latest skia and the parsing fails during check in SkPicture::IsValidPictInfo(...) .

There's a reason I'm using such an old fork, it's the one from hwui.

So, my questions:

1) Was there such functionality for converting SKP to SVG at the time of version 72? If so, do you know maybe the fork I could build for that?

2) Or maybe there's something else that could be done?

I'll go look through github branches for now.

понедельник, 27 февраля 2023 г. в 20:45:35 UTC+3, Florin Malita:

[Florin Malita]

You can check out one of the older release branches -- `chrome/m85` seems to be the last version to support v72 SKPs.  You prolly also need to downgrade depot_tools to a version around that time frame, in order to build.

I don't think we've done much work on the SVG backend in recent years, so that may be sufficient.  You could also try to forward-port the SKPs, re-recording through several releases with overlapping version support (e.g. v72 -> [m85] -> v76 -> [m93] -> v87 -> ...), but I don't think we guarantee lossless conversion.

To view this discussion on the web visit https://groups.google.com/d/msgid/skia-discuss/ec40da6d-68df-4247-9ebe-83832a702faan%40googlegroups.com.

[render dender]

Well, I spent almost 2 days trying to build it with different toolchains, with rewriting build scripts slightly/fixing dependencies but still haven't managed to build it successfully.

In the end I just used SkSVGCanvas to write SVGs locally on device within Skia Viewer built for android and then pulling them manually through adb to desktop. It works, not ideally, but does almost what I wanted.

Thanks, Florin!

вторник, 28 февраля 2023 г. в 17:32:25 UTC+3, Florin Malita: