Setulc only does RGB colour so add Setulc1 to do non-RGB colours, GitHub

issue 3627.
This commit is contained in:
nicm
2023-09-02 09:17:23 +00:00
parent c5542637d7
commit d209fe9b1e
5 changed files with 28 additions and 9 deletions

24
tty.c
View File

@ -2814,11 +2814,13 @@ tty_check_us(__unused struct tty *tty, struct colour_palette *palette,
gc->us = c;
}
/* Underscore colour is set as RGB so convert. */
if ((c = colour_force_rgb (gc->us)) == -1)
gc->us = 8;
else
gc->us = c;
/* Convert underscore colour if only RGB can be supported. */
if (!tty_term_has(tty->term, TTYC_SETULC1)) {
if ((c = colour_force_rgb (gc->us)) == -1)
gc->us = 8;
else
gc->us = c;
}
}
static void
@ -2898,9 +2900,17 @@ tty_colours_us(struct tty *tty, const struct grid_cell *gc)
goto save;
}
/* Must be an RGB colour - this should never happen. */
if (~gc->us & COLOUR_FLAG_RGB)
/*
* If this is not an RGB colour, use Setulc1 if it exists, otherwise
* convert.
*/
if (~gc->us & COLOUR_FLAG_RGB) {
c = gc->us;
if ((~c & COLOUR_FLAG_256) && (c >= 90 && c <= 97))
c -= 82;
tty_putcode_i(tty, TTYC_SETULC1, c & ~COLOUR_FLAG_256);
return;
}
/*
* Setulc and setal follows the ncurses(3) one argument "direct colour"