Re: [Interest] how to build the xcb-plugin with egl support?
Hi Thiago, are you by any chance working on the intel egl driver? cause there might be a bug. http://stackoverflow.com/questions/28892858/egl-pbuffer-offscreen-rendering-can-only-read-back-background/28907106#28907106 How do I file a bug to intel? Thanks, On Mon, Mar 2, 2015 at 12:28 PM, Thiago Macieira thiago.macie...@intel.com wrote: On Monday 02 March 2015 12:06:23 Shi Yan wrote: I'm trying to make my own platform plugin with egl. but I always get a black screen. I’m trying to build the xcb-plugin with egl support, so that I can debug it and compare it with my implementation. I noticed if CONFIG has x11_egl, then it will use egl instead of glx. but I tried to configure the Qt project with ./configure -opengl x11_egl, it won’t work. I can’t find the right way to enable egl. do you know? configure -opengl es2 -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel Open Source Technology Center ___ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest ___ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
Re: [Interest] how to build the xcb-plugin with egl support?
On Friday 06 March 2015 12:32:44 Shi Yan wrote: Hi Thiago, are you by any chance working on the intel egl driver? No. I am merely a user. cause there might be a bug. http://stackoverflow.com/questions/28892858/egl-pbuffer-offscreen-rendering- can-only-read-back-background/28907106#28907106 How do I file a bug to intel? http://bugs.freedesktop.org, file against Mesa. -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel Open Source Technology Center ___ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
Re: [Interest] how to build the xcb-plugin with egl support?
On 3 March 2015 at 00:53, Thiago Macieira thiago.macie...@intel.com wrote: GLX implies desktop GL And, Qt supports creating GLES contextes on GLX, if the right extensions are available. -- Giuseppe D'Angelo ___ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
Re: [Interest] how to build the xcb-plugin with egl support?
On Monday 02 March 2015 15:46:01 Shi Yan wrote: Thank you. But why does es2 use egl, whereas the desktop opengl uses glx? I think it's the other way around: GLX implies desktop GL, so using OpenGL ES2 implies using EGL. EGL supports desktop GLs too. I learnt that nvidia's egl implementation can only support opengl es, is this true with intel graphics too? Intel's driver supports OpenGL ES 2, ES 3, OpenGL 2 and 3. And they're binary compatible, so both libraries can be loaded in the same process. $ LD_LIBRARY_PATH=$QT5_WITH_DESKTOPGL qtdiag | tail LibGL Vendor: Intel Open Source Technology Center Renderer: Mesa DRI Intel(R) Haswell Mobile Version: 3.0 Mesa 10.3.7 Shading language: 1.30 Format: Version: 3.0 Profile: 0 Swap behavior: 0 Buffer size (RGBA): 8,8,8,8 $ LD_LIBRARY_PATH=$QT5_WITH_GLES qtdiag | tail LibGLES Vendor: Intel Open Source Technology Center Renderer: Mesa DRI Intel(R) Haswell Mobile Version: OpenGL ES 3.0 Mesa 10.3.7 Shading language: OpenGL ES GLSL ES 3.0 Format: Version: 3.0 Profile: 0 Swap behavior: 0 Buffer size (RGBA): 8,8,8,8 -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel Open Source Technology Center ___ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
Re: [Interest] how to build the xcb-plugin with egl support?
sorry, I replied too quick without reading your response. Yes, this is what I want to try! Thanks On Mon, Mar 2, 2015 at 12:59 PM, Andrew Knight q...@panimo.net wrote: On 03/02/2015 10:28 PM, Thiago Macieira wrote: On Monday 02 March 2015 12:06:23 Shi Yan wrote: I'm trying to make my own platform plugin with egl. but I always get a black screen. I’m trying to build the xcb-plugin with egl support, so that I can debug it and compare it with my implementation. I noticed if CONFIG has x11_egl, then it will use egl instead of glx. but I tried to configure the Qt project with ./configure -opengl x11_egl, it won’t work. I can’t find the right way to enable egl. do you know? configure -opengl es2 Or if you want to use desktop GL without GLX, try -opengl desktop -no-xcb-xlib You might be better off with EGLFS (+ X11 hooks), though. That option is more geared toward custom embedded development. See Laszlo's excellent post about the improvements for Qt 5.5: http://blog.qt.io/blog/2015/01/20/qt-weekly-23-qt-5-5-enhancements-for-linux-graphics-and-input-stacks/ ___ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest ___ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
[Interest] how to build the xcb-plugin with egl support?
I'm trying to make my own platform plugin with egl. but I always get a black screen. I’m trying to build the xcb-plugin with egl support, so that I can debug it and compare it with my implementation. I noticed if CONFIG has x11_egl, then it will use egl instead of glx. but I tried to configure the Qt project with ./configure -opengl x11_egl, it won’t work. I can’t find the right way to enable egl. do you know? ___ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
