I've landed a couple of changes to the GLX and X11 WSI code that enable GLX_EXT_swap_control_tear and VK_PRESENT_MODE_FIFO_RELAXED_KHR, respectively. These enable the app to request that "late" swaps (that missed the requested MSC or UST) post immediately instead of waiting for the next vblank, which can reduce presentation jitter, keep you from falling all the way from 60 to 30 fps, etc. I normally wouldn't make a big deal about announcing it but it's likely that these could expose new code paths through the 2D driver in ways that would show up in test cases, particularly full-screen games and such.
Please let me know about any bugs you encounter due to these features. Please include the X server and driver in use when you do, as most of the heavy lifting for this is on the server side. Or, if they work for you, let me know how much your FPS improved in Half Life or Stardew Valley or what have you. - ajax _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
