Hi! On 16/04/18 16:49, Tomi Valkeinen wrote: > Hi All, > > I have implemented a WSEGL plugin library for Imagination's PVR driver > for SGX, which allows using SGX via DRI3. In other words, it is one > piece in the puzzle of using SGX with X11. > > The project is not production quality, as I have not had time to perfect > it (and, to be honest, I'm not exactly an expert on X), but now that I > finally got all the permissions to publish it, I'm doing just that to > allow other people to use it and help making it fully usable. > > You can find the code and a more detailed description here: > > https://github.com/TexasInstruments/dri3wsegl > > Hopefully with this code now public, we can get an SGX and GC320 > accelerated X11 on TI devices. Great, this will be fun to try. >From the README: > Xorg's modesetting driver supports DRI3, but unfortunately only when using Glamor, which uses OpenGL for 2D acceleration. There's no OpenGL HW on TI's devices. > > However, for testing purposes, it is possible to use Mesa SW rendering to fulfill the OpenGL requirement. With this this setup, SGX is used to render to a buffer, passed to the modesetting driver via DRI3, which is then composited to the screen using OpenGL SW rendering. Needless to say, the composition is very slow. > > Although slow with SW rendering, modesetting driver is quite stable and the DRI3 support works fine, so it is good for testing. There is this: https://cgit.freedesktop.org/xorg/xserver/commit/?id=c36f56808ffbefc4a3dcf61dfad17f62aeb8e16c https://cgit.freedesktop.org/xorg/xserver/log/glamor?id=c36f56808ffbefc4a3dcf61dfad17f62aeb8e16c https://www.phoronix.com/scan.php?page=news_item&px=GLAMOR-GLES2-Fallback https://cgit.freedesktop.org/xorg/xserver/tree/glamor/glamor_egl.c#n952 So actually, Glamor should already work, given a new enough X server? This will be exciting to try out on the N900 and perhaps on the Droid 4 as well. I will try to test this in a few weeks from now. I would personally be very happy if we can use just the modesetting driver. On a related note, maemo leste also did some work on this for DRI2: https://github.com/freemangordon/pvr I think this works as a drop-in replacement on Fremantle for pvrPVR2D_DRI2WSEGL, and can also work with newer X versions. But dri3wsegl seems like the proper way forward here. Cheers, Merlijn -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
