sungmg/mutter-performance-source
1
0
Fork 0
Code Activity

monitor: Add backlight abstraction

Browse source 
This allows higher levels to deal with backlight on a monitor bases,
instead of having to deal with the fact that some monitors might have
multiple outputs.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3861>
This commit is contained in:
Jonas Ådahl 2024-07-01 15:36:55 +02:00
parent 68dd168e33
commit c22816393c
2 changed files with 68 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

58
src/backends/meta-monitor.c
View file

@ -2401,3 +2401,61 @@ out:
*out_refresh_rate = refresh_rate;
return TRUE;
}
gboolean
meta_monitor_get_backlight_info (MetaMonitor *monitor,
int *backlight_min,
int *backlight_max)
{
MetaOutput *main_output;
int value;
main_output = meta_monitor_get_main_output (monitor);
value = meta_output_get_backlight (main_output);
if (value >= 0)
{
const MetaOutputInfo *output_info = meta_output_get_info (main_output);
if (backlight_min)
*backlight_min = output_info->backlight_min;
if (backlight_max)
*backlight_max = output_info->backlight_max;
return TRUE;
}
else
{
return FALSE;
}
}
void
meta_monitor_set_backlight (MetaMonitor *monitor,
int value)
{
MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor);
GList *l;
for (l = priv->outputs; l; l = l->next)
{
MetaOutput *output = l->data;
meta_output_set_backlight (output, value);
}
}
gboolean
meta_monitor_get_backlight (MetaMonitor *monitor,
int *value)
{
if (meta_monitor_get_backlight_info (monitor, NULL, NULL))
{
MetaOutput *main_output;
main_output = meta_monitor_get_main_output (monitor);
*value = meta_output_get_backlight (main_output);
return TRUE;
}
else
{
return FALSE;
}
}

10
src/backends/meta-monitor.h
View file

@ -335,3 +335,13 @@ gboolean meta_parse_monitor_mode (const char *string,
int *out_height,
float *out_refresh_rate,
float fallback_refresh_rate);
gboolean meta_monitor_get_backlight_info (MetaMonitor *monitor,
int *backlight_min,
int *backlight_max);
void meta_monitor_set_backlight (MetaMonitor *monitor,
int value);
gboolean meta_monitor_get_backlight (MetaMonitor *monitor,
int *value);