https://bugs.documentfoundation.org/show_bug.cgi?id=103279

            Bug ID: 103279
           Summary: Left brace in formula drawn distorted and displaced
                    with OpenGL render
           Product: LibreOffice
           Version: 5.2.0.0.alpha0+
          Hardware: All
                OS: Windows (All)
            Status: UNCONFIRMED
          Keywords: bibisected, regression
          Severity: normal
          Priority: medium
         Component: graphics stack
          Assignee: libreoffice-bugs@lists.freedesktop.org
          Reporter: mikekagan...@hotmail.com
                CC: tim_e...@sil.org, t...@iki.fi
            Blocks: 97171

Created attachment 128044
  --> https://bugs.documentfoundation.org/attachment.cgi?id=128044&action=edit
FIle with problematic formula

Some symbols, e.g. left brace, are drawn incorrectly when OpenGL render is
used.
Open the attached file to see the problem.

Bibisecting on bibisect-win32-5.2
git bisect start 'master' 'oldest'
# good: [fe49bc7ee9e094b6e3c03ef59034bf3dbe45ee30] source
sha:87c011134031374cf9104ec2fc39ef121d8a6802
git bisect good fe49bc7ee9e094b6e3c03ef59034bf3dbe45ee30
# skip: [ce67f2fd1f2cd29d2284b612cf8fa8fbea299a2c] source
sha:603a9ada2d8cea9191ca66892ca53fee10678d8a
git bisect skip ce67f2fd1f2cd29d2284b612cf8fa8fbea299a2c
# bad: [61b8ac924ad21329dc9c3ddf8bf4c42c3a861391] source
sha:1b992e4b470af3e2492b520df93d362fe14b4b69
git bisect bad 61b8ac924ad21329dc9c3ddf8bf4c42c3a861391
# skip: [2f40ff456e0e70b2353cca6efb38aa63bb20219b] source
sha:c03a11b8f0c93b1c55d9abc9aa224aeb298d1976
git bisect skip 2f40ff456e0e70b2353cca6efb38aa63bb20219b
# bad: [2d089fd17f5af5287ca8759946c498907cb2d2ba] source
sha:06895bd2c785d79dd00261ded31def10b5a7157e
git bisect bad 2d089fd17f5af5287ca8759946c498907cb2d2ba
# good: [745fed0f322582c608e2c847626d76f2d655bd09] source
sha:2e0c1e03e85ef6a20ca362f263c60b141741f698
git bisect good 745fed0f322582c608e2c847626d76f2d655bd09
# bad: [965365d01d35eca67211f672786900799d305857] source
sha:e0df62ae59b84b48787fa21fe083a0454c82a914
git bisect bad 965365d01d35eca67211f672786900799d305857
# bad: [067b6c46bfac7a652288ebafb0a44c38da6adf72] source
sha:c23757066d914ac04a39abcd72279c7c3d8919d5
git bisect bad 067b6c46bfac7a652288ebafb0a44c38da6adf72
# bad: [7069db552ad62b92858701ba8fc4eb2d56f09472] source
sha:7fdc29469d3d098c1b2d5b1cfc7ed907031eb932
git bisect bad 7069db552ad62b92858701ba8fc4eb2d56f09472
# good: [1c70727d1ddc5ef5684714c038660f8294703aeb] source
sha:221144f9c995fe30adf577c02f756b3123fb2550
git bisect good 1c70727d1ddc5ef5684714c038660f8294703aeb
# good: [acfe7ce8d17dd1cf5912a7fb07ece0550a929eaa] source
sha:a4bd382c8a6cf5a79898c692752408477cd4cfc5
git bisect good acfe7ce8d17dd1cf5912a7fb07ece0550a929eaa
# good: [063f8396dbfd20f1c69d70e4d28229de8a008d8b] source
sha:60286229fa54b71c67a5d25a7cce59e54b6b8680
git bisect good 063f8396dbfd20f1c69d70e4d28229de8a008d8b
# good: [2ff64f3b32d778d5631fa58dacd3744fb2548475] source
sha:2a1b70c4b2d5debf235c088a1e3c71a3457c1af7
git bisect good 2ff64f3b32d778d5631fa58dacd3744fb2548475
# bad: [30a556d1c169cc1f86aaa97d9c5f6f0c8b537bf3] source
sha:03637a75c1bebf8b35b520139b9ddfa3238ee53f
git bisect bad 30a556d1c169cc1f86aaa97d9c5f6f0c8b537bf3
# bad: [f6d00d870871adc9590658c20e080461b57f366a] source
sha:e45d80f20ff6a05888f92ae942abed67609d5b20
git bisect bad f6d00d870871adc9590658c20e080461b57f366a
# first bad commit: [f6d00d870871adc9590658c20e080461b57f366a]
  source sha:e45d80f20ff6a05888f92ae942abed67609d5b20

author  Tim Eves <tim_e...@sil.org>     2016-02-23 16:45:21 (GMT)
committer       Tor Lillqvist <t...@collabora.com>       2016-03-14 10:50:59
(GMT)
commit  e45d80f20ff6a05888f92ae942abed67609d5b20
tree    fef594425e80e321d4b6466e228fb4a85c97cac7
parent  2a1b70c4b2d5debf235c088a1e3c71a3457c1af7
tdf#97171: Use DirectWrite for OpenGL glyph caching

Screenshots from last good, first bad (both OpenGL) and reference (without
OpenGL) are included.


Referenced Bugs:

https://bugs.documentfoundation.org/show_bug.cgi?id=97171
[Bug 97171] Artifacts for italic text in GL rendering mode
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