SVG Files: Showing Wrong Pixel Format Errors

[mairin]

Details are here:
https://discuss.pixls.us/t/svg-files-showing-wrong-pixel-format-errors-natron/8190

In a nutshell:

• In the most recent 3 flatpak versions of Natron, when you read an SVG into the project, merge nodes will display the various paths/layers in the SVG, but selecting any of them for display will results in a "Wrong Pixel Format" error. (screenshots and sample SVGs at above link)
• This was a bug upstream that was fixed in 2018
• The upstream tgz packaged binary of Natron 2.4.0 does not have this bug
• The latest flatpak of Natron 2.4.0 on flathub.org has this bug
• The most recent flatpak of Natron that does not have this bug is 2.3.14.
• This issue was introduced into the flatpaks sometimes between 2.3.14 and the version released 2020-06-18

See below for the commit ids of the affected flatpak versions:

Commit: 57c4883d980de2dfeeb804ebc8bffff7231bd8e03a1acd1e8465f128f7b5c5dc
Parent: 32e3abdd66dd0f8630ad11c0dea98134c7982e275706b895df80c2219e350f96

Subject: Fix libheif (36dc680)
Date: 2021-05-31 18:44:45 +0000
History:

Commit: 32e3abdd66dd0f8630ad11c0dea98134c7982e275706b895df80c2219e350f96

Subject: Build fixes (9d2d744)
Date: 2021-04-22 20:51:09 +0000

Commit: 9a18809dea322ea79411cbffebcf7b897bf8f860e909cfa2d570144514905fbe

Subject: Move openfx-misc to CMake (fe01f15)
Date: 2020-06-18 10:54:45 +0000

[rodlie]

The only related change in those commits are the librsvg version.

[mairin]

Is upstream shipping a binary with old librsvg - is this a librsvg bug

[rodlie]

yes, we ship 2.40.

[mairin]

OK would you advise filing against librsvg upstream - do you know where that upstream is

[rodlie]

It might not be a direct issue in librsvg, I don't test against anything newer than 2.40, so there could be issues on our part.

I can test against latest librsvg if I get the time this week.

[Sunderland93]

@mairin please test latest build of Natron flatpak

[devernay]

@Sunderland93 did you upgrade to 2.4.1?

[Sunderland93]

Build is started #32