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core/debug-control: Allow changing the reference luminance of outputs

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Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3953>
This commit is contained in:
Sebastian Wick
2024-07-19 15:30:56 +02:00
committed by Marge Bot
parent 9b05e39816
commit 6fa61a088f
5 changed files with 72 additions and 5 deletions
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28
src/backends/meta-color-device.c
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@ -671,18 +671,32 @@ update_color_state (MetaColorDevice *color_device)
MetaMonitor *monitor = color_device->monitor;
MetaBackend *backend =
meta_color_manager_get_backend (color_device->color_manager);
MetaContext *context = meta_backend_get_context (backend);
MetaDebugControl *debug_control = meta_context_get_debug_control (context);
ClutterContext *clutter_context = meta_backend_get_clutter_context (backend);
g_autoptr (ClutterColorState) color_state = NULL;
ClutterColorspace colorspace;
ClutterTransferFunction transfer_function;
float min_lum, max_lum, ref_lum;
float reference_luminance_factor;
UpdateResult result = 0;
colorspace = get_color_space_from_monitor (monitor);
transfer_function = get_transfer_function_from_monitor (monitor);
color_state = clutter_color_state_new (clutter_context,
colorspace,
transfer_function);
clutter_transfer_function_get_default_luminances (transfer_function,
&min_lum,
&max_lum,
&ref_lum);
reference_luminance_factor =
meta_debug_control_get_luminance_percentage (debug_control) / 100.0f;
ref_lum = ref_lum * reference_luminance_factor;
color_state = clutter_color_state_new_full (clutter_context,
colorspace,
transfer_function,
min_lum, max_lum, ref_lum);
if (!color_device->color_state ||
!clutter_color_state_equals (color_device->color_state, color_state))
@ -698,6 +712,9 @@ MetaColorDevice *
meta_color_device_new (MetaColorManager *color_manager,
MetaMonitor *monitor)
{
MetaBackend *backend = meta_color_manager_get_backend (color_manager);
MetaContext *context = meta_backend_get_context (backend);
MetaDebugControl *debug_control = meta_context_get_debug_control (context);
MetaColorDevice *color_device;
color_device = g_object_new (META_TYPE_COLOR_DEVICE, NULL);
@ -724,6 +741,11 @@ meta_color_device_new (MetaColorManager *color_manager,
color_device);
}
g_signal_connect_object (debug_control, "notify::luminance-percentage",
G_CALLBACK (meta_color_device_update),
color_device,
G_CONNECT_SWAPPED | G_CONNECT_AFTER);
return color_device;
}