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An extremely low latency KVMFR (KVM FrameRelay) implementation for guests with VGA PCI Passthrough.
1,641 Commits 15 Branches 37 Tags 7.8 MiB
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C++ 4%
CMake 2.5%
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Quantum 30a888711b [client] egl: force DMA copy into texture in on_frame 
This commit forces the DMA'd memory to be copied into the texture in
the EGL on_frame handler. This avoids tearing when the LG host inevitably
updates the underlying memory. We need an additional copy inside the GPU,
but this is cheap compared to copying from system memory.

We could have used logic to lock the memory buffer, but that would require
performing DMA on every frame, which wastes memory bandwidth. This
manifests as reduced frame rate when moving the mouse compared to the
non-DMA implementation.

We also keep multiple EGLImages, one for each DMA fd, to avoid issues
with the OpenGL driver.
2021-02-21 10:31:48 +11:00
.github [all] update discord link for issue template 2021-01-30 15:41:44 +11:00
client [client] egl: force DMA copy into texture in on_frame 2021-02-21 10:31:48 +11:00
common [common] ivshmem: do not create dmabuf for simple mmap 2021-02-21 10:31:48 +11:00
contrib/redhat [meta] Add SELinux policy 2017-12-14 22:22:44 +11:00
host [host] windows: detect whether screensaver is disabled in the guest 2021-02-21 10:31:48 +11:00
module [module] test mmaping with offsets in test program 2021-02-21 10:31:48 +11:00
obs [all] added new format version field to frame header 2020-10-12 18:52:37 +11:00
profile [all] use explicit void parameter lists 2021-01-14 17:29:37 +11:00
repos [spice] update the PureSpice submodule 2021-01-25 15:06:21 +11:00
resources [res] added LG logo vector graphics 2021-02-21 10:31:48 +11:00
vendor [c-host] windows: update ivshmem driver header and usage 2019-10-24 19:46:09 +11:00
.gitattributes [git] added vcxproj files to crlf exceptions 2017-10-31 20:19:52 +11:00
.gitignore [obs] implemented intial OBS Looking Glass Client plugin 2020-01-10 18:14:08 +11:00
.gitmodules [client] moved spice into a seperate repository 2020-01-31 21:39:57 +11:00
CONTRIBUTORS Fixed typo in word wish 2018-05-31 13:28:36 +10:00
LICENSE added licensing to sources 2017-10-31 19:07:16 +11:00
README.md [doc] Change Level1Techs link to Looking Glass forum 2021-02-02 08:42:54 +11:00
version.cmake [cmake] remove --long from version.cmake 2021-01-01 12:10:35 +11:00

README.md

Looking Glass

An extremely low latency KVMFR (KVM FrameRelay) implementation for guests with VGA PCI Passthrough.

Donations

I (Geoffrey McRae) am the primary developer behind this project and I have invested thousands of hours of development time into it.

If you like this project and find it useful and would like to help out you can support me directly using the following platforms.

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

Please also be sure to see the following files for more information Note: The README.md files are slowly being deprecated from this project in favor of the wiki at https://looking-glass.io/wiki, and as such the information in these files may be dated.

Latest Version

If you would like to use the latest bleeding edge version of Looking Glass please be aware there will be no support at this time.

Latest bleeding edge builds of the Windows host application can be obtained from:

https://looking-glass.io/downloads

Help and support

Web

https://forum.level1techs.com/c/software/lookingglass/142

Discord

IRC

Join us in the #LookingGlass channel on the FreeNode network

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