[Bug 52951] New: gdi32:font - test_GetGlyphOutline() fails on "VL Gothic" in Wine

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52951

Bug ID: 52951
           Summary: gdi32:font - test_GetGlyphOutline() fails on "VL
                    Gothic" in Wine
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdi32
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

gdi32:font - test_GetGlyphOutline() fails on "VL Gothic" in Wine:

font.c:4885: Test failed: expected 36, got 19 (VL Gothic:136)
font.c:4903: Test failed: expected 36, got 19 (VL Gothic:136)

https://test.winehq.org/data/patterns.html#gdi32:font

This begs two questions:

1. Is this a bug in the font, or a bug in the test?
2. Why does this happen on the debian11 (and debiant) VMs, but not on fg-deb64
(my development machine)?

On Debian VL Gothic is brought in by this package dependency chain:

libsane -> libpoppler-glib8 -> libpoppler102 -> poppler-data -(suggest)->
fonts-vlgothic

Interestingly poppler-data has alternatives to fonts-vlgothic one of which is
already installed:

fonts-ipaexfont-gothic
   fonts-ipfont-gothic               (installed)
   fonts-ipafont-nonfree-jisx0208
   fonts-mona
   fonts-takao-gothic
   fonts-umeplus-cl
   fonts-vlgothic                    (installed)

But the reason for the difference is that fg-deb64 has the AR PL UMing CN font
(from the fonts-arphic-uming package) and not the TestBot VMs. The lack of
UMing also causes a test to be skipped on the TestBot VMs:

1: (IPAGothic:128)
2: (NanumGothicCoding:129)
font.c:4867: Tests skipped: Fixed-pitch TrueType font for charset 134 is not
available
4: (VL Gothic:136)

So I'm going to install fonts-arphic-uming on the TestBot VMs which should
swipe these two failures under the rug.
Note: I don't have information on how much this will increase the runtime (see
bug 51367) but it seems like it shouldn't be too bad.

[Bug 52951] gdi32:font - test_GetGlyphOutline() fails on "VL Gothic" in Wine

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52951

François Gouget  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|[e-mail]        |[e-mail]
           Keywords|                            |source, testcase

[Bug 52951] gdi32:font - test_GetGlyphOutline() fails on "VL Gothic" in Wine

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52951

Sagawa  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |sagawa.aki+winebugs@gmail.c
                   |                            |om

--- Comment #1 from Sagawa  ---
> From my viewpoint, this is a bug in font.

VL Gothic ver.20200720 has a strange xAvgCharWidth value, 958, in OS/2 table.
Generally, xAvgCharWidth is half of the unitsPerEm for Japanese fixed-pitch
font.
Previous version of VL Gothic, e.g. 20141206, had 500 xAvgCharWidth.

I've tested the font face on Windows. It shows unnatural horizontal spaces
between Kanji characters. However, VL Gothic mainly designed for Linux. I guess
it doesn't matter on Linux.

[Bug 52951] gdi32:font - test_GetGlyphOutline() fails on "VL Gothic" in Wine

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52951

--- Comment #2 from François Gouget  ---
I reported the issue to Debian and it looks like the issue has been fixed
upstream in version 20200720. The Debian package has been updated so this
should presumably not be happening anymore on Debian Testing once the package
trickles down:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1012399