Commit Graph

9 Commits

Author SHA1 Message Date
Geoffrey McRae
952ebea2c5 [all] refresh copyright dates 2022-01-05 19:42:46 +11:00
Quantum
51b9cd4e5a [all] copyright: use unicode copyright sign ©
This is done for consistency with the license strings in appstrings.c.
2021-08-04 21:16:35 +10:00
Geoffrey McRae
5f5f497cbd [host/common] windows: provide delayExecution via nsleep
This change moves this platform specific sleep to `common` as the OS
agnostic `nsleep` function.

Ref PR #661
2021-07-26 16:36:56 +10:00
Quantum
56833edae7 [host] delay: directly link against ntdll.dll
There is no need to LoadLibrary and GetProcAddress to get pointers to
NtDelayExecution or NtSetTimerResolution. These functions don't have
prototypes in any SDK header, but they are exported in ntdll.dll and
we can simply declare the prototype and link ntdll.

There is also no chance that the functions do not exist: I checked an
old install of Windows NT 4.0 and both of these functions exist.

Also used NtSetTimerResolution instead of ZeSetTimerResolution for
consistency (they are the same).

Also changed system timer resolution log message units to μs with
one decimal digit for readability. This is the actual amount of
precision available to us.
2021-07-20 11:30:12 +10:00
Geoffrey McRae
7decb58bf7 [host] windows: fix build on Linux due to case sensitive filenames 2021-07-17 15:05:32 +10:00
Geoffrey McRae
411a6b1e49 [host] windows: add delayExecution function for more accurate sleeps
This change not only exposes and allows use of NtDelayExecution, but
also moves the code to set the system timer resolution.
2021-07-17 14:55:22 +10:00
Quantum
24d0aa0c18 [all] normalize copyright on all source files 2021-06-06 11:53:05 +10:00
Quantum
ffa72c7992 [host] nvfbc: force composition to capture some full screen apps
NvFBC is unable to capture certain applications that bypasses the DWM
compositor, for example, Firefox playing video in full screen. This
has been a known issue for a long time with Nvidia's ShadowPlay, see:
* https://www.nvidia.com/en-us/geforce/forums/geforce-experience/14/233709/
* https://crbug.com/609857

Nvidia won't fix this, but there are workarounds. For example, we
create a transparent 1x1 layered window, which forces desktop composition
to be enabled.

Note that SetLayeredWindowAttributes also supports alpha-based transparency,
but setting transparency to 0 will cause DWM to skip composition. We could
use a transparency of 1, but this ruins the image by the slightest bit,
which is unacceptable. Therefore, we must use chroma key-based
transparency, which tricks DWM into compositing despite being fully
transparent.
2021-01-21 12:14:03 +11:00
Geoffrey McRae
bc7871f630 [c-host] renamed finall to just plain host 2020-05-25 13:42:43 +10:00