Display (Windows): check for hdr enabled & bit depth

src/detection/displayserver/displayserver.c

@@ -1,6 +1,6 @@
 #include "displayserver.h"
 
-bool ffdsAppendDisplay(
+FFDisplayResult* ffdsAppendDisplay(
     FFDisplayServerResult* result,
     uint32_t width,
     uint32_t height,
@@ -16,7 +16,7 @@ bool ffdsAppendDisplay(
     uint32_t physicalHeight)
 {
     if(width == 0 || height == 0)
-        return false;
+        return NULL;
 
     FFDisplayResult* display = ffListAdd(&result->displays);
     display->width = width;
@@ -27,12 +27,15 @@ bool ffdsAppendDisplay(
     display->rotation = rotation;
     ffStrbufInitMove(&display->name, name);
     display->type = type;
-    display->primary = primary;
     display->id = id;
     display->physicalWidth = physicalWidth;
     display->physicalHeight = physicalHeight;
+    display->primary = primary;
 
-    return true;
+    display->bitDepth = 0;
+    display->hdrEnabled = false;
+
+    return display;
 }
 
 void ffConnectDisplayServerImpl(FFDisplayServerResult* ds);

src/detection/displayserver/displayserver.h

@@ -58,10 +58,12 @@ typedef struct FFDisplayResult
     FFstrbuf name;
     FFDisplayType type;
     uint32_t rotation;
-    bool primary;
     uint64_t id; // platform dependent
     uint32_t physicalWidth;
     uint32_t physicalHeight;
+    bool primary;
+    uint8_t bitDepth;
+    bool hdrEnabled;
 } FFDisplayResult;
 
 typedef struct FFDisplayServerResult
@@ -76,7 +78,7 @@ typedef struct FFDisplayServerResult
 
 const FFDisplayServerResult* ffConnectDisplayServer();
 
-bool ffdsAppendDisplay(
+FFDisplayResult* ffdsAppendDisplay(
     FFDisplayServerResult* result,
     uint32_t width,
     uint32_t height,

src/detection/displayserver/displayserver_windows.c

@@ -146,7 +146,7 @@ static void detectDisplays(FFDisplayServerResult* ds)
                 default: rotation = 0; break;
             }
 
-            ffdsAppendDisplay(ds,
+            FFDisplayResult* display = ffdsAppendDisplay(ds,
                 width,
                 height,
                 path->targetInfo.refreshRate.Numerator / (double) path->targetInfo.refreshRate.Denominator,
@@ -164,6 +164,23 @@ static void detectDisplays(FFDisplayServerResult* ds)
                 physicalWidth,
                 physicalHeight
             );
+
+            if (display)
+            {
+                DISPLAYCONFIG_GET_ADVANCED_COLOR_INFO advColorInfo = {
+                    .header = {
+                        .type = DISPLAYCONFIG_DEVICE_INFO_GET_ADVANCED_COLOR_INFO,
+                        .size = sizeof(advColorInfo),
+                        .adapterId = path->targetInfo.adapterId,
+                        .id = path->targetInfo.id,
+                    }
+                };
+                if (DisplayConfigGetDeviceInfo(&advColorInfo.header) == ERROR_SUCCESS)
+                {
+                    display->hdrEnabled = !!advColorInfo.advancedColorEnabled;
+                    display->bitDepth = (uint8_t) advColorInfo.bitsPerColorChannel;
+                }
+            }
         }
     }
 }