Re: Upcoming Qt switch to OpenGL ES on arm64
- Date: Thu, 22 Nov 2018 19:21:13 -0300
- From: Lisandro Damián Nicanor Pérez Meyer <perezmeyer@xxxxxxxxx>
- Subject: Re: Upcoming Qt switch to OpenGL ES on arm64
El jueves, 22 de noviembre de 2018 18:51:20 -03 John Paul Adrian Glaubitz escribió: > > On Nov 22, 2018, at 10:30 PM, Marcin Juszkiewicz > > <marcin@xxxxxxxxxxxxxxxxxx> wrote:> > > W dniu 22.11.2018 o 19:37, Dmitry Shachnev pisze: > >> The Qt framework can be built either with “desktop” OpenGL, or with > >> OpenGL ES support. At the moment we are building it with OpenGL ES on > >> armel and armhf, and with desktop OpenGL on all other architectures. > >> > >> However we have received a request  from two different persons to add > >> arm64 to the list of architectures where OpenGL ES is used. > >> > >> We want your feedback! If you are using an arm64 device or board with Qt, > >> please let us know your opinion about this change, by replying to this > >> mail > >> or to , and describe your use case. > > > > Does it mean that arm64 box with PCI Express graphics card will be not > > able to use Qt based software? I can put Radeon or NVidia card into my > > box and use it as a normal OpenGL accelerated desktop (did that already > > few years ago). > > Correct. After this switch, Qt on arm64 will be forced into embedded mode > when it comes to graphics. s/graphics/OpenGL specific classes. > Not sure whether it’s the right decision to be made. Might be an idea to ask > more users on their opinions on this issue. Well, it's not a new thing for us: <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=799113> <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=881333> I encourage anyone who wants to know more details to dig into that bug. As you can see the first one was filled by myself on 2015... > Granted, I don’t really know what the real world distribution of embedded > and desktop/server/laptop devices of arm64 is. But I could imagine that > there will be more arm64 devices in the future which are desktops, servers > or laptops. ...and that was exactly what we have been doing since 2015. Now in #881333 Raphael pointed for new data and the need for GLES as one thing is having software-based rendering and quite another having hardware-accelerated rendering. -- Only wimps use tape backup: real men just upload their important stuff on ftp, and let the rest of the world mirror it ;) Linus Benedict Torvalds. Lisandro Damián Nicanor Pérez Meyer http://perezmeyer.com.ar/ http://perezmeyer.blogspot.com/
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