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Re: bad default font on Windows mingw64
From: |
Stephen Leake |
Subject: |
Re: bad default font on Windows mingw64 |
Date: |
Mon, 22 Jul 2019 15:10:21 -0700 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.2 (windows-nt) |
Eli Zaretskii <address@hidden> writes:
>> From: Stephen Leake <address@hidden>
>> Date: Mon, 22 Jul 2019 12:13:59 -0700
>>
>> > emacs -Q -xrm Emacs.fontBackend:uniscribe
>>
>> That gives me a readable font.
>
> Then I think you should step through w32hb_encode_char in an Emacs
> invoked normally (only with -Q), and see what happens there. I'm
> guessing it fails for some reason.
w32hb_get_font returns a non-zero pointer.
hb_font_get_nominal_glyph returns 0.
So w32hb_encode_char returns FONT_INVALID_CODE (#xFFFFFFFF).
I don't have source step for hb_font_get_nominal_glyph; apparently
that's in the mingw64 harfbuzz library.
> Are you sure your MSYS2/MinGW64 installation is up to date?
The files are mostly from Dec 2018. 'find . -name "*harfbuzz*"' finds
several files, including
./var/lib/pacman/local/mingw-w64-x86_64-harfbuzz-1.7.5-2
which seems to say I've got harfbuzz 1.7.5.
> What was the commit from which you built your previous binary, which
> did work?
I just realized there are old copies of emacs-<version>.exe in
emacs/src; very nice! However, they are not compatible with the current
*.elc, so not fully functional.
The executable that gives good fonts:
M-x version says it was built on 2019-05-23
M-x report-emacs-bug says:
Repository revision: 5424436452bc0b3d8a62a8398f92d0c2db81e22b
The first executable that fails is:
Repository revision: d590b27ee4c43ba000172b4ad15762863d78aba1
So the commit that caused this problem is somewhere between those two. I
can bisect, if needed.
--
-- Stephe
- bad default font on Windows mingw64, Stephen Leake, 2019/07/22
- Re: bad default font on Windows mingw64, Eli Zaretskii, 2019/07/22
- Re: bad default font on Windows mingw64, Stephen Leake, 2019/07/22
- Re: bad default font on Windows mingw64, Eli Zaretskii, 2019/07/22
- Re: bad default font on Windows mingw64,
Stephen Leake <=
- Re: bad default font on Windows mingw64, Óscar Fuentes, 2019/07/22
- Re: bad default font on Windows mingw64, Stephen Leake, 2019/07/22
- Re: bad default font on Windows mingw64, Eli Zaretskii, 2019/07/22
- Re: bad default font on Windows mingw64, Eli Zaretskii, 2019/07/25