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219 lines
7.5 KiB
219 lines
7.5 KiB
From f21c8614daeb70a021c128b97c000a92652cf6f8 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
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Date: Thu, 24 Feb 2022 12:32:27 +0100
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Subject: [PATCH] monitor-manager: Add NightLightSupported property to
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DisplayConfig
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This checks whether it's possible to set a CRTC GAMMA_LUT, which is what
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is necessary to implement night light.
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---
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src/backends/meta-monitor-manager.c | 76 ++++++++++++++++---
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.../native/meta-monitor-manager-native.c | 25 ++++--
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.../x11/meta-monitor-manager-xrandr.c | 9 ++-
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src/org.gnome.Mutter.DisplayConfig.xml | 7 ++
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4 files changed, 99 insertions(+), 18 deletions(-)
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diff --git a/src/backends/meta-monitor-manager.c b/src/backends/meta-monitor-manager.c
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index 75146950c3..0f30b3de25 100644
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--- a/src/backends/meta-monitor-manager.c
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+++ b/src/backends/meta-monitor-manager.c
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@@ -952,6 +952,59 @@ update_panel_orientation_managed (MetaMonitorManager *manager)
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handle_orientation_change (orientation_manager, manager);
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}
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+static void
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+meta_monitor_manager_get_crtc_gamma (MetaMonitorManager *manager,
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+ MetaCrtc *crtc,
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+ size_t *size,
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+ unsigned short **red,
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+ unsigned short **green,
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+ unsigned short **blue)
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+{
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+ MetaMonitorManagerClass *klass = META_MONITOR_MANAGER_GET_CLASS (manager);
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+
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+ if (klass->get_crtc_gamma)
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+ {
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+ klass->get_crtc_gamma (manager, crtc, size, red, green, blue);
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+ }
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+ else
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+ {
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+ if (size)
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+ *size = 0;
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+ if (red)
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+ *red = NULL;
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+ if (green)
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+ *green = NULL;
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+ if (blue)
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+ *blue = NULL;
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+ }
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+}
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+
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+static gboolean
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+is_night_light_supported (MetaMonitorManager *manager)
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+{
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+ GList *l;
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+
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+ for (l = meta_backend_get_gpus (manager->backend); l; l = l->next)
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+ {
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+ MetaGpu *gpu = l->data;
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+ GList *l_crtc;
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+
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+ for (l_crtc = meta_gpu_get_crtcs (gpu); l_crtc; l_crtc = l_crtc->next)
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+ {
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+ MetaCrtc *crtc = l_crtc->data;
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+ size_t gamma_lut_size;
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+
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+ meta_monitor_manager_get_crtc_gamma (manager, crtc,
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+ &gamma_lut_size,
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+ NULL, NULL, NULL);
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+ if (gamma_lut_size > 0)
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+ return TRUE;
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+ }
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+ }
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+
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+ return FALSE;
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+}
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+
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void
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meta_monitor_manager_setup (MetaMonitorManager *manager)
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{
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@@ -967,7 +1020,6 @@ meta_monitor_manager_setup (MetaMonitorManager *manager)
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meta_dbus_display_config_set_apply_monitors_config_allowed (manager->display_config,
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policy->enable_dbus);
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-
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meta_monitor_manager_read_current_state (manager);
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meta_monitor_manager_ensure_initial_config (manager);
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@@ -2445,7 +2497,6 @@ meta_monitor_manager_handle_get_crtc_gamma (MetaDBusDisplayConfig *skeleton,
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guint crtc_id,
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MetaMonitorManager *manager)
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{
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- MetaMonitorManagerClass *klass;
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GList *combined_crtcs;
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MetaCrtc *crtc;
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gsize size;
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@@ -2476,14 +2527,8 @@ meta_monitor_manager_handle_get_crtc_gamma (MetaDBusDisplayConfig *skeleton,
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crtc = g_list_nth_data (combined_crtcs, crtc_id);
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g_list_free (combined_crtcs);
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- klass = META_MONITOR_MANAGER_GET_CLASS (manager);
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- if (klass->get_crtc_gamma)
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- klass->get_crtc_gamma (manager, crtc, &size, &red, &green, &blue);
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- else
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- {
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- size = 0;
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- red = green = blue = NULL;
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- }
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+ meta_monitor_manager_get_crtc_gamma (manager, crtc,
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+ &size, &red, &green, &blue);
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red_bytes = g_bytes_new_take (red, size * sizeof (unsigned short));
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green_bytes = g_bytes_new_take (green, size * sizeof (unsigned short));
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@@ -3078,6 +3123,16 @@ meta_monitor_manager_is_transform_handled (MetaMonitorManager *manager,
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return manager_class->is_transform_handled (manager, crtc, transform);
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}
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+static void
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+update_night_light_supported (MetaMonitorManager *manager)
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+{
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+ gboolean night_light_supported;
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+
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+ night_light_supported = is_night_light_supported (manager);
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+ meta_dbus_display_config_set_night_light_supported (manager->display_config,
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+ night_light_supported);
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+}
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+
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static void
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meta_monitor_manager_real_read_current_state (MetaMonitorManager *manager)
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{
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@@ -3098,6 +3153,7 @@ meta_monitor_manager_real_read_current_state (MetaMonitorManager *manager)
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}
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rebuild_monitors (manager);
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+ update_night_light_supported (manager);
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}
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void
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diff --git a/src/backends/native/meta-monitor-manager-native.c b/src/backends/native/meta-monitor-manager-native.c
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index fd5e7784ff..37a50f1d6f 100644
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--- a/src/backends/native/meta-monitor-manager-native.c
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+++ b/src/backends/native/meta-monitor-manager-native.c
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@@ -381,15 +381,30 @@ meta_monitor_manager_native_get_crtc_gamma (MetaMonitorManager *manager,
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MetaKmsCrtc *kms_crtc;
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const MetaKmsCrtcState *crtc_state;
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- g_return_if_fail (META_IS_CRTC_KMS (crtc));
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+ if (!META_IS_CRTC_KMS (crtc))
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+ {
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+ if (size)
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+ *size = 0;
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+ if (red)
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+ *red = NULL;
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+ if (green)
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+ *green = NULL;
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+ if (blue)
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+ *blue = NULL;
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+ return;
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+ }
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kms_crtc = meta_crtc_kms_get_kms_crtc (META_CRTC_KMS (crtc));
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crtc_state = meta_kms_crtc_get_current_state (kms_crtc);
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- *size = crtc_state->gamma.size;
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- *red = g_memdup2 (crtc_state->gamma.red, *size * sizeof **red);
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- *green = g_memdup2 (crtc_state->gamma.green, *size * sizeof **green);
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- *blue = g_memdup2 (crtc_state->gamma.blue, *size * sizeof **blue);
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+ if (size)
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+ *size = crtc_state->gamma.size;
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+ if (red)
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+ *red = g_memdup2 (crtc_state->gamma.red, *size * sizeof **red);
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+ if (green)
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+ *green = g_memdup2 (crtc_state->gamma.green, *size * sizeof **green);
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+ if (blue)
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+ *blue = g_memdup2 (crtc_state->gamma.blue, *size * sizeof **blue);
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}
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static char *
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diff --git a/src/backends/x11/meta-monitor-manager-xrandr.c b/src/backends/x11/meta-monitor-manager-xrandr.c
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index 98eb080b6b..865f4e5800 100644
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--- a/src/backends/x11/meta-monitor-manager-xrandr.c
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+++ b/src/backends/x11/meta-monitor-manager-xrandr.c
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@@ -707,9 +707,12 @@ meta_monitor_manager_xrandr_get_crtc_gamma (MetaMonitorManager *manager,
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(XID) meta_crtc_get_id (crtc));
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*size = gamma->size;
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- *red = g_memdup2 (gamma->red, sizeof (unsigned short) * gamma->size);
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- *green = g_memdup2 (gamma->green, sizeof (unsigned short) * gamma->size);
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- *blue = g_memdup2 (gamma->blue, sizeof (unsigned short) * gamma->size);
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+ if (red)
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+ *red = g_memdup2 (gamma->red, sizeof (unsigned short) * gamma->size);
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+ if (green)
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+ *green = g_memdup2 (gamma->green, sizeof (unsigned short) * gamma->size);
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+ if (blue)
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+ *blue = g_memdup2 (gamma->blue, sizeof (unsigned short) * gamma->size);
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XRRFreeGamma (gamma);
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}
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diff --git a/src/org.gnome.Mutter.DisplayConfig.xml b/src/org.gnome.Mutter.DisplayConfig.xml
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index c6859c2c09..5f85c5e271 100644
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--- a/src/org.gnome.Mutter.DisplayConfig.xml
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+++ b/src/org.gnome.Mutter.DisplayConfig.xml
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@@ -297,6 +297,13 @@
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-->
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<property name="ApplyMonitorsConfigAllowed" type="b" access="read" />
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+ <!--
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+ NightLightSupported:
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+
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+ Whether night light is supported by this system.
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+ -->
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+ <property name="NightLightSupported" type="b" access="read" />
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+
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<!--
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MonitorsChanged:
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--
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2.37.1
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