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This is necessary in case overlays change size. When this happens, we must damage the larger of the overlays' rectangles this frame and last frame. This erases the overlay from where it is no longer appears. In order to do this, we must keep track of the rectangles for every overlay with no exception. We cannot short-circuit the generation of rectangles if we run out of buffer space, and we must allocate space for MAX_OVERLAY_RECTS rectangles for every frame. Otherwise, we will not know where to erase the overlay if it disappears.
Looking Glass
An extremely low latency KVMFR (KVM FrameRelay) implementation for guests with VGA PCI Passthrough.
- Project Website: https://looking-glass.io
- Documentation: https://looking-glass.io/docs
Documentation
❕❕❕ IMPORTANT ❕❕❕
This project contains submodules that must be checked out if building from the git repository! If you are not a developer and just want to compile Looking Glass, please download the source archive from the website instead:
https://looking-glass.io/downloads
Source code for the documentation can be found in the /doc directory.
You may view this locally as HTML by running make html with python3-sphinx
installed.