Display: detect if WCG enabled

Author: CarterLi

src/detection/displayserver/displayserver.c

@@ -34,6 +34,7 @@ FFDisplayResult* ffdsAppendDisplay(
 
     display->bitDepth = 0;
     display->hdrEnabled = false;
+    display->wcgEnabled = false;
 
     return display;
 }

src/detection/displayserver/displayserver.h

@@ -64,6 +64,7 @@ typedef struct FFDisplayResult
     bool primary;
     uint8_t bitDepth;
     bool hdrEnabled;
+    bool wcgEnabled;
 } FFDisplayResult;
 
 typedef struct FFDisplayServerResult

src/detection/displayserver/displayserver_windows.c

@@ -178,6 +178,7 @@ static void detectDisplays(FFDisplayServerResult* ds)
                 if (DisplayConfigGetDeviceInfo(&advColorInfo.header) == ERROR_SUCCESS)
                 {
                     display->hdrEnabled = !!advColorInfo.advancedColorEnabled;
+                    display->wcgEnabled = !!advColorInfo.wideColorEnforced;
                     display->bitDepth = (uint8_t) advColorInfo.bitsPerColorChannel;
                 }
             }

src/detection/displayserver/linux/wayland/kde-output.c

@@ -119,6 +119,12 @@ static void waylandKdeHdrListener(void *data, FF_MAYBE_UNUSED struct kde_output_
     display->hdrEnabled = !!hdr_enabled;
 }
 
+static void waylandKdeWcgListener(void *data, FF_MAYBE_UNUSED struct kde_output_device_v2 *kde_output_device_v2, uint32_t wcg_enabled)
+{
+    WaylandDisplay* display = data;
+    display->wcgEnabled = !!wcg_enabled;
+}
+
 static struct kde_output_device_v2_listener outputListener = {
     .geometry = waylandKdeGeometryListener,
     .current_mode = waylandKdeCurrentModeListener,
@@ -137,7 +143,7 @@ static struct kde_output_device_v2_listener outputListener = {
     .name = waylandKdeNameListener,
     .high_dynamic_range = waylandKdeHdrListener,
     .sdr_brightness = (void*) stubListener,
-    .wide_color_gamut = (void*) stubListener,
+    .wide_color_gamut = waylandKdeWcgListener,
     .auto_rotate_policy = (void*) stubListener,
     .icc_profile_path = (void*) stubListener,
     .brightness_metadata = (void*) stubListener,
@@ -194,7 +200,10 @@ void ffWaylandHandleKdeOutput(WaylandData* wldata, struct wl_registry* registry,
         (uint32_t) display.physicalHeight
     );
     if (item)
+    {
         item->hdrEnabled = display.hdrEnabled;
+        item->wcgEnabled = display.wcgEnabled;
+    }
 
     ffStrbufDestroy(&display.description);
     ffStrbufDestroy(&display.name);

src/detection/displayserver/linux/wayland/wayland.h

@@ -47,6 +47,7 @@ typedef struct WaylandDisplay
     FFstrbuf edidName;
     uint64_t id;
     bool hdrEnabled;
+    bool wcgEnabled;
     void* internal;
 } WaylandDisplay;
 

src/modules/display/display.c

@@ -319,6 +319,7 @@ void ffGenerateDisplayJsonResult(FF_MAYBE_UNUSED FFDisplayOptions* options, yyjs
         yyjson_mut_obj_add_uint(doc, obj, "rotation", item->rotation);
         yyjson_mut_obj_add_uint(doc, obj, "bitDepth", item->bitDepth);
         yyjson_mut_obj_add_bool(doc, obj, "hdrEnabled", item->hdrEnabled);
+        yyjson_mut_obj_add_bool(doc, obj, "wcgEnabled", item->wcgEnabled);
 
         switch (item->type)
         {