mirror of
https://github.com/gnif/LookingGlass.git
synced 2026-08-22 07:01:30 +00:00
90 lines
2.5 KiB
ReStructuredText
90 lines
2.5 KiB
ReStructuredText
.. _host_usage:
|
|
|
|
Legacy Host configuration
|
|
#########################
|
|
|
|
.. warning::
|
|
|
|
This page applies only to the legacy Windows Host Application. New
|
|
installations should use the IDD. B7 is the last recommended complete stack
|
|
when non-capture mouse input through the Host Application is required.
|
|
|
|
The legacy Host normally selects a compatible frame path automatically. Its
|
|
persistent configuration file is:
|
|
|
|
``C:\Program Files\Looking Glass (host)\looking-glass-host.ini``
|
|
|
|
Use options from the same release as the Host binary. Do not copy a current
|
|
Host configuration into B7 or combine a B7 Host with a current client.
|
|
|
|
.. _host_capture:
|
|
|
|
Capture interface
|
|
-----------------
|
|
|
|
The legacy Host captures an existing Windows display through Desktop
|
|
Duplication or NvFBC. It does not use Windows Graphics Capture. Select an
|
|
interface only when automatic selection fails:
|
|
|
|
.. code-block:: ini
|
|
|
|
[app]
|
|
capture=d12
|
|
|
|
.. _host_capture_d12:
|
|
|
|
D12
|
|
The preferred Direct3D 12 Desktop Duplication path on supported systems. It
|
|
can copy directly toward shared memory and supports damage tracking.
|
|
|
|
.. _host_capture_dxgi:
|
|
|
|
DXGI
|
|
The Direct3D 11 Desktop Duplication compatibility path. It may require an
|
|
additional staging copy and can show cursor-related capture jitter.
|
|
|
|
.. _host_capture_nvfbc:
|
|
|
|
NvFBC
|
|
An NVIDIA SDK path available only with supported hardware and licensing.
|
|
It is not required by the IDD or the normal legacy D12 path.
|
|
|
|
The exact capture-interface options can change between releases. Consult the
|
|
binary's help and the configuration comments supplied with that release.
|
|
|
|
.. _host_select_ivshmem:
|
|
|
|
Select an IVSHMEM device
|
|
------------------------
|
|
|
|
The legacy Host selects the first IVSHMEM device by default. When the VM has
|
|
more than one, ``os:shmDevice`` selects by zero-based device order:
|
|
|
|
.. code-block:: ini
|
|
|
|
[os]
|
|
shmDevice=1
|
|
|
|
Check the Host log after changing it; the selected device is marked with an
|
|
asterisk. This option is for the legacy Host and is not an IDD helper setting.
|
|
|
|
.. _host_downsampling:
|
|
|
|
Downsampling
|
|
------------
|
|
|
|
The legacy Host can reduce a captured resolution before transport. Rules use
|
|
``source:target`` syntax and may match resolutions greater than a threshold:
|
|
|
|
.. code-block:: ini
|
|
|
|
; Downsample exactly 3840x2160 to 1920x1080
|
|
downsample=3840x2160:1920x1080
|
|
|
|
; Downsample anything larger than 1920x1080
|
|
downsample=>1920x1080:1920x1080
|
|
|
|
This saves transport bandwidth but does not reduce the guest application's
|
|
rendering work. IDD users should request the required virtual monitor
|
|
resolution instead.
|