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syncobj: restore SHM buffer reset (#9675)

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reset shm buffers early to mitigate stuttering animations, also reuse
the monitors eglSync and store the eglsync per monitor. this however
reintroduces flickering in dbeaver nonsyncobj application.
This commit is contained in:
Tom Englund 2025-03-20 11:39:55 +01:00 • committed by GitHub
parent 155eba57d8
commit f6ca4bac51
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GPG key ID: B5690EEEBB952194
3 changed files with 11 additions and 13 deletions
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8
src/protocols/core/Compositor.cpp
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@ -471,12 +471,10 @@ void CWLSurfaceResource::commitPendingState(SSurfaceState& state) {
nullptr);
}
// release the buffer if it's synchronous as update() has done everything thats needed
// release the buffer if it's synchronous (SHM) as update() has done everything thats needed
// so we can let the app know we're done.
// if (!syncobj && current.buffer && current.buffer->buffer && current.buffer->buffer->isSynchronous()) {
// dropCurrentBuffer(); // lets not drop it at all, it will get dropped on next commit if a new buffer arrives.
// solves flickering on nonsyncobj apps on explicit sync.
// }
if (current.buffer && current.buffer->buffer && current.buffer->buffer->isSynchronous())
dropCurrentBuffer();
}
void CWLSurfaceResource::updateCursorShm(CRegion damage) {