Ffimageloading: Miscellaneous rendering issues with SVGs

[zthurston]

Description

I am using FFImageLoading to display some flags in a Xamarin.Forms app. The 2.4.9 release fixed several rendering issues we were having, but there's a few more that may be interesting to look into.

Flag images were fetched from: http://hjnilsson.github.io/country-flags/

I haven't tested all the images; only the following: Mexico, Costa Rica, Panama, Honduras, Trinidad and Tobago, Haiti, Canada, Martinique, Curaçao, Bermuda, Cuba, Guyana, Nicaragua, El Salvador, Jamaica, and French Guinea.

Steps to Reproduce

Load images into a SvgCachedImage using SvgImageSource.FromUri();

Expected Behavior

Flags should render as they would in a web browser - tested in Safari, Chrome, and Firefox.

Aside: Adobe Illustrator also renders many of these images incorrectly.

Actual Behavior

Curaçao: Stars are not rendered correctly and triangle artifacts are on flag, same result on Android and iOS.

Martinique: White cross is missing and only one snake renders on Android. iOS renders correctly.

Panama: Blue star is missing, red star is in blue star's place, same result on Android and iOS.

El Salvador: Crashes while rendering on Android and iOS. El Salvador Android StackTrace.txt

Basic Information

• Version with issue: 2.4.9
• Last known good version: unknown
• Platform: Xamarin.Forms iOS and Android

[daniel-luberda]

Hi,

I pushed some fixes. Almost there...

[stfnilsson]

@daniel-luberda big praise to you for a great work with ffimageloading :-)