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bug#54646: 29.0.50; set-fontset-font and font clipping issues
From: |
Visuwesh |
Subject: |
bug#54646: 29.0.50; set-fontset-font and font clipping issues |
Date: |
Fri, 22 Apr 2022 16:16:07 +0530 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
[வெள்ளி ஏப்ரல் 22, 2022] Eli Zaretskii wrote:
>> From: Visuwesh <visuweshm@gmail.com>
>> Cc: rpluim@gmail.com, 54646@debbugs.gnu.org
>> Date: Thu, 21 Apr 2022 20:20:45 +0530
>>
>> I was not successful in getting the data for all offending sequences.
>> The offending sequences were,
>>
>> bb9 bbf -- ஹி
>> ba9 bc1 -- னு
>> bb5 bbf -- வி
>> b86 -- ஆ
>>
>> and the GOOD case for bb9 bbf is
>>
>> lbearing 1 rbearing 28 width 28 ascent 9 descent 5
>> 1 bb9 bbf xadvance 1809 yadvance 0 xoffset 0 yoffset 0
>> xpos 0 yoff 0 wadjust 28
>>
>> and the BAD case is
>>
>> lbearing 1 rbearing 28 width 28 ascent 9 descent 5
>> 1 bb9 bbf xadvance 3193 yadvance 0 xoffset 0 yoffset 0
>> xpos 0 yoff 0 wadjust 50
>
> This looks like HarfBuzz is feeding us incorrect data for some reason,
> but I cannot imagine what that reason could be, sorry.
Could it be some kind of cache? Because when Emacs rendered the entire
webpage, I was unable to reproduce the issue. Then again,
(clear-composition-cache) did not help. and I was also able to
reproduce the issue with Noto Sans Tamil as well. Anyway, thanks for
looking into this. I will look into reporting it to the HarfBuzz devs
if you have no further comments.
- bug#54646: 29.0.50; set-fontset-font and font clipping issues, (continued)
- bug#54646: 29.0.50; set-fontset-font and font clipping issues, Eli Zaretskii, 2022/04/01
- bug#54646: 29.0.50; set-fontset-font and font clipping issues, Visuwesh, 2022/04/01
- bug#54646: 29.0.50; set-fontset-font and font clipping issues, Eli Zaretskii, 2022/04/01
- bug#54646: 29.0.50; set-fontset-font and font clipping issues, Visuwesh, 2022/04/03
- bug#54646: 29.0.50; set-fontset-font and font clipping issues, Eli Zaretskii, 2022/04/03
- bug#54646: 29.0.50; set-fontset-font and font clipping issues, Visuwesh, 2022/04/03
- bug#54646: 29.0.50; set-fontset-font and font clipping issues, Eli Zaretskii, 2022/04/03
- bug#54646: 29.0.50; set-fontset-font and font clipping issues, Visuwesh, 2022/04/03
- bug#54646: 29.0.50; set-fontset-font and font clipping issues, Visuwesh, 2022/04/21
- bug#54646: 29.0.50; set-fontset-font and font clipping issues, Eli Zaretskii, 2022/04/22
- bug#54646: 29.0.50; set-fontset-font and font clipping issues,
Visuwesh <=
- bug#54646: 29.0.50; set-fontset-font and font clipping issues, Eli Zaretskii, 2022/04/22