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authorJimmy Berry <[email protected]>2015-11-09 23:20:37 -0600
committerMarek Olšák <[email protected]>2015-11-19 00:02:33 +0100
commit56a1c10bb8cc957caa9ebc3723b4692a522a02f5 (patch)
tree9e0bf55addae98011da1c245e4c4ddc0fc1a6e56 /docs
parent0bee3acc2a303b4cbbac0f6f54ffc8be79bc7470 (diff)
gallium/hud: control visibility at startup and runtime.
- env GALLIUM_HUD_VISIBLE: control default visibility - env GALLIUM_HUD_SIGNAL_TOGGLE: toggle visibility via signal Signed-off-by: Marek Olšák <[email protected]>
Diffstat (limited to 'docs')
-rw-r--r--docs/envvars.html6
1 files changed, 6 insertions, 0 deletions
diff --git a/docs/envvars.html b/docs/envvars.html
index bdfe9991a6c..530bbb78696 100644
--- a/docs/envvars.html
+++ b/docs/envvars.html
@@ -179,6 +179,12 @@ Mesa EGL supports different sets of environment variables. See the
<li>GALLIUM_HUD - draws various information on the screen, like framerate,
cpu load, driver statistics, performance counters, etc.
Set GALLIUM_HUD=help and run e.g. glxgears for more info.
+<li>GALLIUM_HUD_VISIBLE - control default visibility, defaults to true.
+<li>GALLIUM_HUD_TOGGLE_SIGNAL - toggle visibility via user specified signal.
+ Especially useful to toggle hud at specific points of application and
+ disable for unencumbered viewing the rest of the time. For example, set
+ GALLIUM_HUD_VISIBLE to false and GALLIUM_HUD_SIGNAL_TOGGLE to 10 (SIGUSR1).
+ Use kill -10 <pid> to toggle the hud as desired.
<li>GALLIUM_LOG_FILE - specifies a file for logging all errors, warnings, etc.
rather than stderr.
<li>GALLIUM_PRINT_OPTIONS - if non-zero, print all the Gallium environment