[Libreoffice-bugs] [Bug 139077] SVG image pasted with RTF paste looks off

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=139077

Aron Budea <baron at caesar.elte.hu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://bz.apache.org/ooo/s
                   |                            |how_bug.cgi?id=119601,
                   |                            |https://bugs.documentfounda
                   |                            |tion.org/show_bug.cgi?id=13
                   |                            |8653,
                   |                            |https://bugs.documentfounda
                   |                            |tion.org/show_bug.cgi?id=11
                   |                            |1483
            Version|7.2.0.0.alpha0+             |4.1.0.4 release
           Keywords|                            |bibisected, bisected,
                   |                            |regression
                 CC|                            |baron at caesar.elte.hu

--- Comment #3 from Aron Budea <baron at caesar.elte.hu> ---
This is interesting, because the results are different in Linux with GTK3 VCL
plugin, and with gen VCL plugin. With gtk3 the image looks inverted, and with
gen the colors are fine, but the quality is bad (it's probably bad in the other
case, too).

It also isn't an RTF paste bug, after exporting to RTF and reloading the
document, the image exhibits the same quality loss.

When using RTF export/import, the issue started in 4.1.0.4, and could be
bibisected to the following range for when the inverted image started, using
bibisect-41max:
https://cgit.freedesktop.org/libreoffice/core/log/?qt=range&q=5bdba378d6fc9f18f618967ec37d07efed2afee4..f47c3906ee0fc35f4b219fb24a0e270956821369

Suspecting the following commit (uneducated guess):
https://cgit.freedesktop.org/libreoffice/core/commit/?id=4fa8df7320f6bdc8333f5936537d2ed93e8892ce
author          Armin Le Grand <alg at apache.org> 2012-06-11 08:38:23 +0000
committer       Caolán McNamara <caolanm at redhat.com>    2013-04-14 21:33:59
+0100

"Resolves: #i119735# missing css.svg.SVGWriter when using GraphicProvider"

Before that, the quality loss started with the following commit, same as in bug
138653:
https://cgit.freedesktop.org/libreoffice/core/commit/?id=a1a0830d1ac3ffabbe35bd8a0264b64f1f7a9d67
author          Armin Le Grand <alg at apache.org> 2012-05-30 13:44:19 +0000
committer       Caolán McNamara <caolanm at redhat.com>    2013-03-16 01:57:53
+0000

"Resolves: #i119601# support for transparency in PNG export dialog"

Much later, the commit that fixed the inverted color with both VCL plugins was
the following (though the background color is slightly different), bibisected
using bibisect-linux-64-6.0:
https://cgit.freedesktop.org/libreoffice/core/commit/?id=ebc11ae0b132eefd3b1b1a837a8d0ad3ba73b460
author          Thorsten Behrens <Thorsten.Behrens at CIB.de>      2017-08-21
22:44:30 +0200
committer       Thorsten Behrens <Thorsten.Behrens at CIB.de>      2017-08-22
12:28:57 +0200

"emfplus: cut over to new EMF+ renderer"

Then the following commit brought back the inverted colors with gtk3 VCL
plugin, in the same version/repo:
https://cgit.freedesktop.org/libreoffice/core/commit/?id=3cb59bff332b02f607d15b5ed41b4438e8102980
author          Caolán McNamara <caolanm at redhat.com>    2017-09-04 13:34:09
+0100
committer       Caolán McNamara <caolanm at redhat.com>    2017-09-04 17:22:27
+0200

"Resolves: tdf#111483 1 bit bitmaps with non-standard black/white indexes"

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