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Fix: [Win32] Font glyphs of certain widths broke #8990

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merged 1 commit into from Apr 10, 2021

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nielsmh
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@nielsmh nielsmh commented Apr 10, 2021

Motivation / Problem

Font glyphs between 33 and 39 pixels wide, in the Win32 font system, used wrong alignment and caused glyphs to appear broken.
When in the 33 to 39 pixel range, glyphs without AA were rounded down to 32 pixel pitch, instead of up to 64 pixel pitch.

Example with a 36 pixel wide glyph (the W):
image
This is Georgia, size 18, with 2x font size in Options, AA disabled.

Description

Fix by rounding up instead of down.

Limitations

None expected.

Checklist for review

Some things are not automated, and forgotten often. This list is a reminder for the reviewers.

  • The bug fix is important enough to be backported? (label: 'backport requested')
  • This PR affects the save game format? (label 'savegame upgrade')
  • This PR affects the GS/AI API? (label 'needs review: Script API')
    • ai_changelog.hpp, gs_changelog.hpp need updating.
    • The compatibility wrappers (compat_*.nut) need updating.
  • This PR affects the NewGRF API? (label 'needs review: NewGRF')

Font glyphs between 33 and 39 pixels wide, in the Win32 font system, used wrong alignment and caused glyphs to appear broken.
When in the 33 to 39 pixel range, glyphs without AA were rounded down to 32 pixel pitch, instead of up to 64 pixel pitch.
@nielsmh nielsmh added the backport requested This PR should be backport to current release (RC / stable) label Apr 10, 2021
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@LordAro LordAro left a comment

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Simple fix is simple

@nielsmh nielsmh merged commit c800dca into OpenTTD:master Apr 10, 2021
@LordAro LordAro added backported This PR is backported to a current release (RC / stable) and removed backport requested This PR should be backport to current release (RC / stable) labels Apr 18, 2021
@nielsmh nielsmh deleted the win32font-glyphfix branch May 7, 2022 08:22
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2 participants