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| author | Eli Zaretskii <eliz@gnu.org> | 2017-08-21 17:46:42 +0300 |
|---|---|---|
| committer | Eli Zaretskii <eliz@gnu.org> | 2017-08-21 17:46:42 +0300 |
| commit | 76fbe2f4541b11af8bcb0b5e57bb155b796b8d8e (patch) | |
| tree | 9d1387417298711062a0b1b4e81e625a9300bd2f /src/w32term.c | |
| parent | 9840499564c90c43b1d269154593ebe57a7cb9b0 (diff) | |
| download | emacs-76fbe2f4541b11af8bcb0b5e57bb155b796b8d8e.tar.gz | |
Avoid floating-point exceptions while drawing underwave
* src/w32term.c (x_get_scale_factor):
* src/xterm.c (x_get_scale_factor): Don't let the scale factors
become less than 1. Reported by Yuri D'Elia <wavexx@thregr.org> in
http://lists.gnu.org/archive/html/emacs-devel/2017-08/msg00459.html.
Diffstat (limited to 'src/w32term.c')
| -rw-r--r-- | src/w32term.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/w32term.c b/src/w32term.c index 6d2fa335859..2785ae2b52d 100644 --- a/src/w32term.c +++ b/src/w32term.c @@ -318,8 +318,10 @@ x_get_scale_factor(struct w32_display_info *dpyinfo, int *scale_x, int *scale_y) if (dpyinfo) { - *scale_x = floor (dpyinfo->resx / base_res); - *scale_y = floor (dpyinfo->resy / base_res); + if (dpyinfo->resx > base_res) + *scale_x = floor (dpyinfo->resx / base_res); + if (dpyinfo->resy > base_res) + *scale_y = floor (dpyinfo->resy / base_res); } } |