Problem with NetSurf on ArmBook

Hi, all.

There’s an annoying problem when using NetSurf on the ArmBook.

If you scroll down a page, there’s no problem, but if you scroll back up again, you get ugly white lines all over the page you’re looking at.

I’m guessing this is to do with the way NetSurf’s screen drawing interacts with the ArmBook’s BigMode screen setting.

Does anybody know how to stop it doing this ?

Jon Robinson, Leeds

If you scroll down a page, there’s no problem, but if you scroll back up again, you get ugly white lines all over the page you’re looking at.

I’m guessing this is to do with the way NetSurf’s screen drawing interacts with the ArmBook’s BigMode screen setting.

That would probably do it. It’s a long time since I looked at the code, but I seem to recall that NetSurf’s RISC OS front-end used to be somewhat hard-coded to assume EX1 EY1.

Does anybody know how to stop it doing this ?

If I’m correct, then either don’t use BigMode, or roll up your sleeves, delve into the NetSurf codebase and volunteer to make it agnostic to pixel size. It wouldn’t actually be difficult to do, IIRC… just a lot of work to replace all of the *2s and /2s with values based on the current desktop mode.

Which version are you using? If it’s a release version, try the latest development version.

This change hasn’t been in a release yet.

It’s the latest version – 3.10.

The white lining, however, only affects PICTURES, not text,
so the problem must be in the JPEG plotter.

Jon

As I said the latest release doesn’t have the rendering fix I linked.

Try NetSurf-gcc-5356.zip from here

5356 actually makes it WORSE.

It sizes the JPEGs a quarter of the size they should be, and
fills the area they should occupy with lines, or bits of text.

With 3.10, the lining when you scroll back upwards, sometimes
affects the background close to the JPEGs, as well as the
JPEGs themselves.

Jon

OK, it looks like that regressed when we changed to avoiding Tinct entierly on OS versions that can render sprites with alpha channels. (Which fixes things like the reflections in the ROOL logos above.)

Try NetSurf-gcc-5358.zip please.

Dear Michael

5358 works PERFECTLY on my ARMBook.

Many thanks to whoever did the programming.

Hope it works on everything else as well.

Regards, Jon

Yep, it’s much better :)

But I noticed a strange problem on lite.qwant.com. The search icon is very big (with older versions, it was OK). A problem I can see too sometimes on other websites.

Ah, and when you maximised the favorites window, it goes far below the bottom of the screen.