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--window-size-chars: ensure width/height are valid for current scaling factor

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Before this patch, we didn’t ensure width and height were valid for
the current scaling factor, when fractional scaling _is_
available. That is, we didn’t ensure the width/height values
multiplied back to their original values after dividing with the
scaling factor.

Closes #1446
This commit is contained in:
Daniel Eklöf 2023-07-30 07:53:33 +02:00
parent 05131a9b0c
commit 1af0277564
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GPG key ID: 5BBD4992C116573F
2 changed files with 7 additions and 16 deletions
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19
render.c
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@ -3933,22 +3933,9 @@ maybe_resize(struct terminal *term, int width, int height, bool force)
width += 2 * term->conf->pad_x * scale;
height += 2 * term->conf->pad_y * scale;
/*
* Ensure we can scale to logical size, and back to
* pixels without truncating.
*/
if (!term_fractional_scaling(term)) {
xassert((int)ceilf(scale) == (int)scale);
int iscale = scale;
if (width % iscale)
width += iscale - width % iscale;
if (height % iscale)
height += iscale - height % iscale;
xassert(width % iscale == 0);
xassert(height % iscale == 0);
}
/* Ensure width/height is a valid multiple of scale */
width = roundf(scale * roundf(width / scale));
height = roundf(scale * roundf(height / scale));
break;
}
}