пт, 21 окт. 2022 г., 21:16 Andrew Randrianasulu <[email protected]>:
> > > пт, 21 окт. 2022 г., 21:11 Phyllis Smith <[email protected]>: > >> >>> and all this because adventurious user 'goat' reported he had better >>> luck with cin-gg on arm single-board computer under Wayland/Xwayland - >>> namely timeline scrolling performance. >>> -- >>> >> Wow, that is interesting and I really wonder why that would be -- it must >> be some implementation feature of Wayland ? >> > little video demo (hopefully yandex links actually watchable with their integrated player) https://www.linux.org.ru/forum/linux-hardware/16959253/page3#comments (for some reason IceWM recording appear more smooth than it was in reality) > I think yes? On most modern systems X server uses 3d acceleration via > glamour module, and 3d part on those singleboard computers tend to use even > more weird layout for their buffers - so you can't just read texture via > cpu (memcpy), it must be detiled, sometimes in software ... and wayland > does some of this via dma-bufs (?) kernel level shared buffer > implementation .. so it can do things not defined or allowed in Opengl/egl > > or so I gathered from forums .... > >>
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