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monitor-manager/native: Get CRTC gamma from cache if available

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Right now gamma is set only via the D-Bus API (from gsd-color), but the
actual gamma isn't right after SetCrtcGamma(), meaning if one would call
GetCrtcGamma() right after setting it, one would get the old result.
Avoid this by getting the "current" CRTC gamma from the cache we manage.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2159>
This commit is contained in:
Jonas Ådahl 2021-06-14 18:01:21 +02:00 committed by Marge Bot
parent cd517216ae
commit 23a530cb09
1 changed files with 17 additions and 1 deletions
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18
src/backends/native/meta-monitor-manager-native.c
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@ -379,12 +379,28 @@ meta_monitor_manager_native_get_crtc_gamma (MetaMonitorManager *manager,
unsigned short **green,
unsigned short **blue)
{
MetaMonitorManagerNative *manager_native =
META_MONITOR_MANAGER_NATIVE (manager);
MetaCrtcKms *crtc_kms = META_CRTC_KMS (crtc);
MetaKmsCrtcGamma *crtc_gamma;
MetaKmsCrtc *kms_crtc;
const MetaKmsCrtcState *crtc_state;
g_return_if_fail (META_IS_CRTC_KMS (crtc));
kms_crtc = meta_crtc_kms_get_kms_crtc (META_CRTC_KMS (crtc));
crtc_gamma =
meta_monitor_manager_native_get_cached_crtc_gamma (manager_native,
crtc_kms);
if (crtc_gamma)
{
*size = crtc_gamma->size;
*red = g_memdup2 (crtc_gamma->red, *size * sizeof **red);
*green = g_memdup2 (crtc_gamma->green, *size * sizeof **green);
*blue = g_memdup2 (crtc_gamma->blue, *size * sizeof **blue);
return;
}
kms_crtc = meta_crtc_kms_get_kms_crtc (crtc_kms);
crtc_state = meta_kms_crtc_get_current_state (kms_crtc);
*size = crtc_state->gamma.size;