Invalid blur clipping

[JoKalliauer]

svg

png

ink	rsvg	resvg

Expected

Copyright

source https://commons.wikimedia.org/wiki/File:Vector_saturn.svg

author Kelvinsong

license https://creativecommons.org/licenses/by-sa/3.0/deed.de

[RazrFalcon]

Looks like everyone is wrong:

Will investigate further to find the source of the issue.

[matpaul]

@RazrFalcon Hi! I try use your implementation of fastblur and saw same effect fix for me was in box_blur_vert change initialization of fv, lv

let fv: RGBA8 = backbuf[ti];
let lv: RGBA8 = backbuf[ti + width * (height - 1)]; 

in box_blur_horz change change initialization of fv, lv

let fv: RGBA8 = backbuf[ti];
let lv: RGBA8 = backbuf[ti + width - 1];

ps. sorry don't have enough time to PR

[RazrFalcon]

Thanks, will try it out.

[yisibl]

Hi, @RazrFalcon

I think the Blur filter might be a separate issue. We have encountered this problem in our actual business.

Fixed with the code suggested by @matpaul (see https://github.com/zimond/resvg/commit/cab0b158e00209cf8e89ef00bbe5f5e1782417eb).

Can we fix the Blur filter issue https://github.com/RazrFalcon/resvg/issues/324 first?

Test case(svg):

[RazrFalcon]

resvg produces the correct output according to the SVG spec here.

The image border blur was fixes in v0.33

[JoKalliauer]

confirm fix