Hey, https://bugzilla.novell.com/show_bug.cgi?id=324503 https://bugzilla.novell.com/show_bug.cgi?id=426305
Are the droids you're looking for. On 9 Jun 2015 5:08 pm, "Benjamin Schieder" <[email protected]> wrote: > I'm pretty much happy that I got a usable workaround. > > Also, those bugs don't actually exist so it'd be difficult for someone > with literally zero knowledge about the internal workings of libgdiplus or > mono to do either. > > https://bugzilla.xamarin.com/show_bug.cgi?id=324503 > https://bugzilla.xamarin.com/show_bug.cgi?id=426305 > > > Am 2015-06-09 15:59, schrieb Andres G. Aragoneses: > >> Good job, now you should file the bug in http://bugzilla.xamarin.com/ >> and find a way to fix the bug in a way in which it doesn't make bug >> 426305 or 324503 reappear. >> >> On 09/06/15 13:09, Benjamin Schieder wrote: >> >>> I have found the bad commit (and learned how to use git bisect in the >>> process): >>> >>> [01:04:04][blindcoder@flora:~/Downloads/libgdiplus]$ git bisect bad >>> 59ca17e56adb8555e9b4e0960b771f2849f6366f is the first bad commit >>> commit 59ca17e56adb8555e9b4e0960b771f2849f6366f >>> Author: Dick Porter <[email protected]> >>> Date: Thu Mar 31 16:02:19 2011 +0100 >>> >>> Don't premultiply PNG images on loading, no other format does this. >>> >>> When drawing images, except when drawing onto a memory bitmap, >>> premultiply >>> if needed. >>> >>> Fixes bug 426305, without breaking bug 324503. >>> >>> :040000 040000 bc4a7075f87afdb5dc6e67c859cd82b06876d29e >>> cf1cea632be730ad978409f224766097ba1382ea M src >>> [git:(59ca17e...)|BISECTING][A:0][D:0][M:1][?:5] >>> >>> If I check out 059ca56800ccca8249260fac5e9e8b45291b8237, the >>> transparency is fine. >>> When I update to 59ca17e56adb8555e9b4e0960b771f2849f6366f, the >>> transparency is incorrect. >>> >>> Kind regards, >>> Benjamin >>> >>> Am 2015-06-09 12:45, schrieb Alexander Köplinger: >>> >>> There aren't that many commits for pngcodec.c in the last 4 years >>>> (which is when 2.10 was tagged), so it's probably one of those: >>>> https://github.com/mono/libgdiplus/commits/master/src/pngcodec.c . >>>> Shouldn't be too hard to figure out which one broke your scenario. >>>> >>>> -- Alex >>>> >>>> > To: [email protected] >>>> > Date: Tue, 9 Jun 2015 12:31:43 +0200 >>>> > From: [email protected] >>>> > CC: [email protected] >>>> > Subject: Re: [Mono-dev] Problem with PNG transparancy on current >>>> Debian Unstable >>>> > >>>> > Alright, I compiled libgdiplus 2.10 and put it into >>>> /opt/libgdiplus2.10/ >>>> > I then did the following: >>>> > LD_LIBRARY_PATH=/opt/libgdiplus2.10/lib/ >>>> > export LD_LIBRARY_PATH >>>> > ./transparancy.exe >>>> > >>>> > And it works fine. So I guess there is a regression somewhere in >>>> > libgdiplus between 2.10 and today. >>>> > >>>> > >>>> > Am 2015-06-09 12:17, schrieb Benjamin Schieder: >>>> > > I have this version on squeeze: >>>> > > ii libgdiplus 2.10-3+b1 >>>> > > armel interface library for System.Drawing of Mono >>>> > > >>>> > > And this version on unstable: >>>> > > ii libgdiplus >>>> > > 3.12-0xamarin1+jpeg62.1 amd64 interface library >>>> > > for System.Drawing of Mono >>>> > > >>>> > > I'll try to compile a 2.10 version of libgdiplus, but that's a lot >>>> of >>>> > > difference and probably way above my head to bisect correctly. >>>> > > >>>> > > Am 2015-06-09 11:50, schrieb Andres G. Aragoneses: >>>> > >> You could check what version of >>>> > >> libgdiplus(https://github.com/mono/libgdiplus) did Debian Squeeze >>>> > >> include, and try to run a custom new mono built from sources, with >>>> an >>>> > >> older libgdiplus, to confirm that it is a libgdiplus regression. >>>> If it >>>> > >> is, then after that you could try to bisect the commit that >>>> caused it. >>>> > >> >>>> > >> On 09/06/15 11:40, Benjamin Schieder wrote: >>>> > >>> Hello Alex. >>>> > >>> >>>> > >>> I have followed those instructions and done a dist-upgrade, but >>>> after >>>> > >>> re-compiling with mcs the problem persists unchanged. I have the >>>> > >>> following versions now: >>>> > >>> >>>> > >>> [11:38:29][blindcoder@flora:~/Downloads/PZ/MapMap]$ mcs --version >>>> > >>> Mono C# compiler version 4.0.1.0 >>>> > >>> [11:38:34][blindcoder@flora:~/Downloads/PZ/MapMap]$ mono >>>> --version >>>> > >>> Mono JIT compiler version 4.0.1 (tarball Thu May 28 09:08:28 UTC >>>> > >>> 2015) >>>> > >>> Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. >>>> > >>> www.mono-project.com >>>> > >>> TLS: __thread >>>> > >>> SIGSEGV: altstack >>>> > >>> Notifications: epoll >>>> > >>> Architecture: amd64 >>>> > >>> Disabled: none >>>> > >>> Misc: softdebug >>>> > >>> LLVM: supported, not enabled. >>>> > >>> GC: sgen >>>> > >>> [11:38:37][blindcoder@flora:~/Downloads/PZ/MapMap]$ cli --version >>>> > >>> Mono JIT compiler version 4.0.1 (tarball Thu May 28 09:08:28 UTC >>>> > >>> 2015) >>>> > >>> Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. >>>> > >>> www.mono-project.com >>>> > >>> TLS: __thread >>>> > >>> SIGSEGV: altstack >>>> > >>> Notifications: epoll >>>> > >>> Architecture: amd64 >>>> > >>> Disabled: none >>>> > >>> Misc: softdebug >>>> > >>> LLVM: supported, not enabled. >>>> > >>> GC: sgen >>>> > >>> >>>> > >>> Kind regards, >>>> > >>> Benjamin >>>> > >>> >>>> > >>> Am 2015-06-09 11:07, schrieb Alexander Köplinger: >>>> > >>> >>>> > >>>> It works fine here with latest Mono 4.0.1.44 on Ubuntu. Can you >>>> try >>>> > >>>> upgrading to latest Mono from Xamarin by following >>>> > >>>> >>>> >>>> http://www.mono-project.com/docs/getting-started/install/linux/#debian-ubuntu-and-derivatives >>>> >>>> > >>>> ? >>>> > >>>> >>>> > >>>> I suspect this has something to do with libgdiplus (the native >>>> > >>>> library >>>> > >>>> most of the System.Drawing code calls into). >>>> > >>>> >>>> > >>>> -- Alex >>>> > >>>> >>>> > >>>> > To: [email protected] >>>> > >>>> > Date: Tue, 9 Jun 2015 10:15:02 +0200 >>>> > >>>> > From: [email protected] >>>> > >>>> > Subject: [Mono-dev] Problem with PNG transparancy on current >>>> Debian >>>> > >>>> Unstable >>>> > >>>> > >>>> > >>>> > Hello. >>>> > >>>> > >>>> > >>>> > I have a problem with PNG transparancy in mono on current >>>> Debian >>>> > >>>> > Unstable. >>>> > >>>> > I created a small example (4 kB download) with minimal code >>>> and two >>>> > >>>> > example images: >>>> > >>>> > https://oc.anderdonau.de/index.php/s/VwTAlcjETG6j3XP >>>> > >>>> > >>>> > >>>> > Running this example on a current Debian Unstable results in >>>> this - bad >>>> > >>>> > - image: >>>> > >>>> > https://oc.anderdonau.de/index.php/s/AtVtba0tpSk4bn8 >>>> > >>>> > >>>> > >>>> > Running the same code on an old Debian Squeeze (on armel) >>>> results in >>>> > >>>> > this - correct - image: >>>> > >>>> > https://oc.anderdonau.de/index.php/s/eqhmXh9qpBbg0WW >>>> > >>>> > >>>> > >>>> > Can someone help me with this issue? >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > Kind regards, >>>> > >>>> > Benjamin >>>> > >>>> > -- >>>> > >>>> > Jabber: [email protected] >>>> > >>>> > Twitter: https://twitter.com/blind_coder >>>> > >>>> > Web: http://www.benjamin-schieder.de/ >>>> > >>>> > _______________________________________________ >>>> > >>>> > Mono-devel-list mailing list >>>> > >>>> > [email protected] >>>> > >>>> > http://lists.ximian.com/mailman/listinfo/mono-devel-list >>>> > >>> >>>> > >>> Jabber: [email protected] <mailto:[email protected] >>>> > >>>> > >>> Twitter: https://twitter.com/blind_coder >>>> > >>> Web: http://www.benjamin-schieder.de/ >>>> > >>> >>>> > >>> >>>> > >>> _______________________________________________ >>>> > >>> Mono-devel-list mailing list >>>> > >>> [email protected] >>>> > >>> http://lists.ximian.com/mailman/listinfo/mono-devel-list >>>> > >>> >>>> > >> >>>> > >> >>>> > >> _______________________________________________ >>>> > >> Mono-devel-list mailing list >>>> > >> [email protected] >>>> > >> http://lists.ximian.com/mailman/listinfo/mono-devel-list >>>> > >>>> > -- >>>> > Jabber: [email protected] >>>> > Twitter: https://twitter.com/blind_coder >>>> > Web: http://www.benjamin-schieder.de/ >>>> > _______________________________________________ >>>> > Mono-devel-list mailing list >>>> > [email protected] >>>> > http://lists.ximian.com/mailman/listinfo/mono-devel-list >>>> >>> >>> Jabber: [email protected] <mailto:[email protected]> >>> Twitter: https://twitter.com/blind_coder >>> Web: http://www.benjamin-schieder.de/ >>> >>> >>> _______________________________________________ >>> Mono-devel-list mailing list >>> [email protected] >>> http://lists.ximian.com/mailman/listinfo/mono-devel-list >>> >>> >> >> _______________________________________________ >> Mono-devel-list mailing list >> [email protected] >> http://lists.ximian.com/mailman/listinfo/mono-devel-list >> > > -- > Jabber: [email protected] > Twitter: https://twitter.com/blind_coder > Web: http://www.benjamin-schieder.de/ > _______________________________________________ > Mono-devel-list mailing list > [email protected] > http://lists.ximian.com/mailman/listinfo/mono-devel-list >
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