Re: HiDPI support for wave style underlines

[Stephen Pegoraro <spegoraro@tutive.com>]

It still needs a fair bit of work on my end, the current
implementation is pretty naive.
Certain fonts are also getting clipping issues on HiDPI displays. I've
been pretty short of time this month but will try to get something
better going in the next few days!

On 21 August 2017 at 22:49, Eli Zaretskii <eliz@gnu.org> wrote:
>> From: Yuri D'Elia <wavexx@thregr.org>
>> Date: Mon, 21 Aug 2017 14:32:07 +0200
>>
>> On Mon, Aug 21 2017, Yuri D'Elia wrote:
>> > I actually get a floating point exception with this since I rebuilt
>> > emacs on the 19th. I'm rebuilding emacs now with debug to check where
>> > it's located, but I pinpointed it to flyspell so...
>>
>> Thread 1 "emacs" received signal SIGFPE, Arithmetic exception.
>> 0x00000000005181a3 in x_draw_underwave (s=0x7fffffffbe20) at xterm.c:3541
>> 3541    x1 = x0 - (x0 % dx);
>> (gdb) where
>> #0  0x00000000005181a3 in x_draw_underwave (s=0x7fffffffbe20) at xterm.c:3541
>> #1  0x0000000000518877 in x_draw_glyph_string (s=0x7fffffffbe20) at xterm.c:3685
>> #2  0x00000000004805d4 in draw_glyphs (w=0x148dc30 <bss_sbrk_buffer+8070032>, x=233, row=0x2eda080, area=TEXT_AREA, start=7, end=26, hl=DRAW_NORMAL_TEXT, overlaps=0) at xdisp.c:26595
>> (gdb) p dx
>> $1 = 0
>
> Thanks, I tried to correct this with an obvious fix.
>