On 02/09/16 12:58 AM, Leo Liu wrote: > On 09/01/2016 11:54 AM, Nayan Deshmukh wrote: >> Hi Leo, >> >> I saw the code in dri3_glx.c and I could somewhat relate some basic >> code structure to the vl_winsys_dri3.c. But I am new to this and not aware >> of the >> terminology that you used about the buffers. Could you please explain what >> needs >> to be done in more detail or point me to where I can read about it. > > I believe it's from loader_dri3_helper.c with "is_different_gpu" > condition true, that will include back buffer and front buffer case. > you could try only back buffer case for now.
From a high level, PRIME mainly affects presentation, not so much the video decoding / rendering. The important thing is that the buffer used for presentation via the Present extension is linear, not tiled. I'm not sure whether it makes more sense to allocate a separate linear buffer for this purpose, as is done for GLX, or for the vl code to make the corresponding back (or front?) buffer linear in the first place. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
