Re: Calculate wordwrapped/justified lines using the stencil stacking primitives (issue 13827044)

[dak]

On 2013/09/24 22:01:17, janek wrote:

> > and you'll see that the old code has problems in the patterns ending
on
> > 85 and 104.

> Thanks, this should help me understand what's going on.

Without looking at the code, that's not all that likely.

> Interestingly, with current master (bfdebcb93bebe820c2d5fd6c1bed) the
> pattern ending with 104 appears to be fine.

My current "fresh" installed LilyPond at /usr/local/bin/lilypond from
which I reported the behavior is 2.17.23, the main spacing changes were
2.17.19.  There might have been some fixes to linewrapping after
2.17.23, and/or this might be related to font metrics.

commit 6e8698dcb9a9b9a98d8b1a644c84fcb737f99bdc
Author: David Kastrup <address@hidden>
Date:   Thu Aug 1 12:20:24 2013 +0200

    Issue 3483: Pango font size should be calculated using rounding

could be relevant here, and it's 2.17.24, indeed later.  Of course,
numerical accuracy can _always_ come into play here and make things
differ on different compilers/libraries/optimization levels, but the
probability is rather low.

https://codereview.appspot.com/13827044/