[Bug 105262] ttf fonts are invisible

[Bug 105262] ttf fonts are invisible

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https://bugs.freedesktop.org/show_bug.cgi?id=105262

            Bug ID: 105262
           Summary: ttf fonts are invisible
           Product: Mesa
           Version: git
          Hardware: Other
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: public@sourcemage.org
        QA Contact: dri-devel@lists.freedesktop.org

Created attachment 137622
  --> https://bugs.freedesktop.org/attachment.cgi?id=137622&action=edit
gvim main window as an example

Video: Radeon 4650HD PRO
Xorg: 1.19.6
Kernel: 4.15.6

Non-TTF fonts are rendered fine. Also, Firefox and LibreOffice can render TTF
in their work areas, but not in gtk interface.

Mesa 17.3.5 is unaffected.

Attached screenshot illustrates the bug.

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[Bug 105262] ttf fonts are invisible

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https://bugs.freedesktop.org/show_bug.cgi?id=105262

--- Comment #1 from Pavel Vinogradov <public@sourcemage.org> ---
Created attachment 137623
  --> https://bugs.freedesktop.org/attachment.cgi?id=137623&action=edit
Xorg.log

Xorg.log with today's build of mesa from git.

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[Bug 105262] ttf fonts are invisible

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https://bugs.freedesktop.org/show_bug.cgi?id=105262

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #137623|text/x-log                  |text/plain
          mime type|                            |

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[Bug 105262] ttf fonts are invisible

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https://bugs.freedesktop.org/show_bug.cgi?id=105262

--- Comment #2 from LoneVVolf <lonewolf@xs4all.nl> ---
This looks very similar to my issue, see 
https://bbs.archlinux.org/viewtopic.php?id=234852

The libreoffice screenshots shown at
https://ask.libreoffice.org/en/question/90910/writer-displays-no-text/ are
almost exactly what i encounter.

Going back in the log of my package manager i have been able to narrow the
cause down somewhat.

https://cgit.freedesktop.org/mesa/mesa/commit/?id=2f0db33527fc5415858e60d76d5b82c5492151fa
from 2018-01-31 works

https://cgit.freedesktop.org/mesa/mesa/commit/?id=3f7a7bd897ce4d7da50d4f25b1549001abef05cc
from 2018-02-08 fails

The cause should be somewhere between these two commits.

Pavel, could you check the libreoffice screenshots to verify we have the same
issue ?

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[Bug 105262] ttf fonts are invisible

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https://bugs.freedesktop.org/show_bug.cgi?id=105262

--- Comment #3 from Pavel Vinogradov <public@sourcemage.org> ---
Created attachment 137675
  --> https://bugs.freedesktop.org/attachment.cgi?id=137675&action=edit
LO Writer example

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[Bug 105262] ttf fonts are invisible

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https://bugs.freedesktop.org/show_bug.cgi?id=105262

--- Comment #4 from Pavel Vinogradov <public@sourcemage.org> ---
I got a bit different picture here. Added attachment above. Menus and tooltips
aren't rendered. The text is fine.

(In reply to LoneVVolf from comment #2)
> This looks very similar to my issue, see 
> https://bbs.archlinux.org/viewtopic.php?id=234852
> 
> The libreoffice screenshots shown at
> https://ask.libreoffice.org/en/question/90910/writer-displays-no-text/ are
> almost exactly what i encounter.
> 
> Going back in the log of my package manager i have been able to narrow the
> cause down somewhat.
> 
> https://cgit.freedesktop.org/mesa/mesa/commit/
> ?id=2f0db33527fc5415858e60d76d5b82c5492151fa from 2018-01-31 works
> 
> https://cgit.freedesktop.org/mesa/mesa/commit/
> ?id=3f7a7bd897ce4d7da50d4f25b1549001abef05cc from 2018-02-08 fails
> 
> The cause should be somewhere between these two commits.
> 
> Pavel, could you check the libreoffice screenshots to verify we have the
> same issue ?

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[Bug 105262] ttf fonts are invisible

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https://bugs.freedesktop.org/show_bug.cgi?id=105262

LoneVVolf <lonewolf@xs4all.nl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Hardware|Other                       |x86-64 (AMD64)

--- Comment #5 from LoneVVolf <lonewolf@xs4all.nl> ---
Installed gvim to verify, and that has no menus AND shows no text.
It looks like both of us have the same issue, but i have an additonal one: no
text at all in affected programs.

I'm running archlinux x86_64 with xf86-video-ati on an AMD HD 4870.
xorg 1.19.6, kernel 4.15.5

programs without text in menus on my system : 
openbox, lxde, gvim, libreoffice, firefox gtk-filechooser, thunderbird
gtk-filechooser

No issues at all in qt programs like lxqt, kwin, gwenview , okular, calligra .

Could you verify whether qt programs have issues ?

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[Bug 105262] ttf fonts are invisible

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https://bugs.freedesktop.org/show_bug.cgi?id=105262

--- Comment #6 from LoneVVolf <lonewolf@xs4all.nl> ---
It appears most recent commits wrt r600 were written by Dave Airlie.
Added him to CC list

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[Bug 105262] ttf fonts are invisible

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https://bugs.freedesktop.org/show_bug.cgi?id=105262

--- Comment #7 from LoneVVolf <lonewolf@xs4all.nl> ---
I started bisecting this. Had to move head several times due to build failures
and runtime problems, but managed to find some more good commits.

$ git bisect log
git bisect start
# good: [aa2f609f7009199999f824970f9c13f016994364] broadcom/vc5: Ignore
samplers for finding uniform offsets.
git bisect good aa2f609f7009199999f824970f9c13f016994364
# bad: [3f7a7bd897ce4d7da50d4f25b1549001abef05cc] r600: implement tg4 integer
workaround. (v2)
git bisect bad 3f7a7bd897ce4d7da50d4f25b1549001abef05cc
# good: [4081e088962315b5c3f4e7030868faf01e7c4a69] winsys/amdgpu: allow non
page-aligned size bo creation from pointer
git bisect good 4081e088962315b5c3f4e7030868faf01e7c4a69
$

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[Bug 105262] ttf fonts are invisible

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https://bugs.freedesktop.org/show_bug.cgi?id=105262

--- Comment #8 from Pavel Vinogradov <public@sourcemage.org> ---
Sorry, no qt stuff here, but I have rxvt-unicode with the same problem. So,
it's not gtk specific.

(In reply to LoneVVolf from comment #5)
> Installed gvim to verify, and that has no menus AND shows no text.
> It looks like both of us have the same issue, but i have an additonal one:
> no text at all in affected programs.
> 
> I'm running archlinux x86_64 with xf86-video-ati on an AMD HD 4870.
> xorg 1.19.6, kernel 4.15.5
>  
> programs without text in menus on my system : 
> openbox, lxde, gvim, libreoffice, firefox gtk-filechooser, thunderbird
> gtk-filechooser
> 
> No issues at all in qt programs like lxqt, kwin, gwenview , okular, calligra
> .
> 
> Could you verify whether qt programs have issues ?

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[Bug 105262] [R600] [BISECTED] ttf fonts are invisible in many programs

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=105262

LoneVVolf <lonewolf@xs4all.nl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|ttf fonts are invisible     |[R600] [BISECTED] ttf fonts
                   |                            |are invisible in many
                   |                            |programs

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[Bug 105262] [R600] [BISECTED] ttf fonts are invisible in many programs

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https://bugs.freedesktop.org/show_bug.cgi?id=105262

--- Comment #9 from LoneVVolf <lonewolf@xs4all.nl> ---
# first bad commit: [5b14e06d8b42e2b08ebc52b6c314ef8647d87a1f] r600: work out
shader export mask at shader build time (v1.1)

mesa-git from this commit on doesn't render TTF fonts anymore in openbox, gvim,
libreoffice, rxvt-unicode and firefox / thunderbird gtk-interfaces .
qt programs don't appear to be affected.

Affected videocards :
Radeon 4650HD Pro
Radeon HD 4870 with AMD RV770 chipset

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[Bug 105262] [R600] [BISECTED] ttf fonts are invisible in many programs

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https://bugs.freedesktop.org/show_bug.cgi?id=105262

--- Comment #10 from LoneVVolf <lonewolf@xs4all.nl> ---
The first bad commit was submitted by Dave Airlie and reviewed by Roland
Scheidegger

Added Roland Scheidegger to CC List.

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[Bug 105262] [R600] [BISECTED] ttf fonts are invisible in many programs

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https://bugs.freedesktop.org/show_bug.cgi?id=105262

--- Comment #11 from Roland Scheidegger <sroland@vmware.com> ---
Created attachment 137762
  --> https://bugs.freedesktop.org/attachment.cgi?id=137762&action=edit
copy over export color mask

Would this patch help?
I think the r600 code forgot to copy over the export mask (at least the eg code
does it).

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[Bug 105262] [R600] [BISECTED] ttf fonts are invisible in many programs

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[-- Attachment #1.1: Type: text/plain, Size: 375 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=105262

--- Comment #12 from LoneVVolf <lonewolf@xs4all.nl> ---
Patch applied to trunk rev 411aa8c322f6703b20d32c7c263fd7ea8639cf3f cleanly and
appears to solve all problems.

Pavel, can you or other sourcemage users with r600 cards also test ?

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[Bug 105262] [R600] [BISECTED] ttf fonts are invisible in many programs

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https://bugs.freedesktop.org/show_bug.cgi?id=105262

--- Comment #13 from Pavel Vinogradov <public@sourcemage.org> ---
Confirmed, the patch works. Thank you all for quick solution.

(In reply to LoneVVolf from comment #12)
> Patch applied to trunk rev 411aa8c322f6703b20d32c7c263fd7ea8639cf3f cleanly
> and appears to solve all problems.
> 
> Pavel, can you or other sourcemage users with r600 cards also test ?

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[Bug 105262] [R600] [BISECTED] ttf fonts are invisible in many programs

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[-- Attachment #1.1: Type: text/plain, Size: 577 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=105262

Roland Scheidegger <sroland@vmware.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #14 from Roland Scheidegger <sroland@vmware.com> ---
Fixed by 434523cf2a6738b0250de2a0e36e93b13f88832a.
Thanks for bisecting!

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