* core: drop the legacy renderer
the legacy renderer is broken and barely used, drop it.
* Nix: drop support for legacyRenderer
---------
Co-authored-by: Mihai Fufezan <mihai@fufexan.net>
actually reserve the vector instead of initializing it with the
m_attrs.fd.size() adding 4 invalid fd entries, and later emplace_back
the valid ones.
sync_merge_data name is defined as char name[32] a fixed size array, and
c++ technically doesnt allow assigning string literals directly to array
fields in aggregate initializers, it may compile but is technically
undefined behaviour or ill formed. zero initalise it and use
std::ranges::copy_n instead.
* ctm: enable fade animation on nvidia driver versions 575 and above
* format if statement without braces; handle potential throw when checking for nvidia version file
* add doOnReadable to event loop manager
* move syncTimeline addWaiter to doOnReadable
* wait on dmabuf buffers to be readable
* don't over synchronize in scanout, also give present feedback on same buffer commit
* make CHLBufferReference not a SP anymore
* copy over release and acquire points in CHLBufferReference
* use CHLBufferReference in screencopy and toplevel export
TODO: use CHLBufferReference in direct scanout properly
the only problem is the scanout buffer release timing,
specifically the onBackendRelease mechanism
* cleanup SSurfaceState and surface pending commit tracking
* move surface code from DRMSyncobj, and move acquire to SSurfaceState
* use queue for comitted pending surface states like proto says
"The content update is placed in a queue until it becomes active." - wl_surface::commit
* drop, not release, prev buffer if 2nd buffer wl_surface.attach is sent
"A wl_buffer that has been attached and then replaced by another attach instead of committed will not receive a release event, and is not used by the compositor." - wl_surface::attach
* core: Don't damage the entire surface every frame
* core: Damage buffer on dims or transform change
* core: Use guards for scale and tr equality checks
