[PATCH 1/1] win32u: Implement NtUserDisplayConfigGetDeviceInfo( DISPLAYCONFIG_DEVICE_INFO_GET_ADAPTER_NAME ).

[Paul Gofman]

From: Paul Gofman

---
 dlls/user32/tests/monitor.c |  3 +--
 dlls/win32u/sysparams.c     | 24 ++++++++++++++++++++++--
 2 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/dlls/user32/tests/monitor.c b/dlls/user32/tests/monitor.c
index 97eddbc60bd..206d9505705 100644
--- a/dlls/user32/tests/monitor.c
+++ b/dlls/user32/tests/monitor.c
@@ -2024,15 +2024,14 @@ static void test_QueryDisplayConfig_result(UINT32 flags,
                 preferred_mode.width, preferred_mode.height);
         check_preferred_mode(&preferred_mode, source_name.viewGdiDeviceName);

-        todo_wine {
         adapter_name.header.type = DISPLAYCONFIG_DEVICE_INFO_GET_ADAPTER_NAME;
         adapter_name.header.size = sizeof(adapter_name);
         adapter_name.header.adapterId = pi[i].sourceInfo.adapterId;
+        adapter_name.header.id = ~0u;
         adapter_name.adapterDevicePath[0] = '\0';
         ret = pDisplayConfigGetDeviceInfo(&adapter_name.header);
         ok(!ret, "Expected 0, got %ld\n", ret);
         ok(adapter_name.adapterDevicePath[0] != '\0', "Expected adapter device path, got empty string\n");
-        }

/* Check corresponding modes */
         if (flags & QDC_VIRTUAL_MODE_AWARE)
diff --git a/dlls/win32u/sysparams.c b/dlls/win32u/sysparams.c
index 3a0fbe4f87b..0c53fd9f54c 100644
--- a/dlls/win32u/sysparams.c
+++ b/dlls/win32u/sysparams.c
@@ -7390,13 +7390,33 @@ NTSTATUS WINAPI NtUserDisplayConfigGetDeviceInfo( DISPLAYCONFIG_DEVICE_INFO_HEAD
     case DISPLAYCONFIG_DEVICE_INFO_GET_ADAPTER_NAME:
     {
         DISPLAYCONFIG_ADAPTER_NAME *adapter_name = (DISPLAYCONFIG_ADAPTER_NAME *)packet;
+        char buffer[MAX_PATH + 4 + sizeof(guid_devinterface_display_adapterA)];
+        struct source *source;
+        unsigned int i;

-        FIXME( "DISPLAYCONFIG_DEVICE_INFO_GET_ADAPTER_NAME stub.\n" );
+        TRACE( "DISPLAYCONFIG_DEVICE_INFO_GET_ADAPTER_NAME.\n" );

if (packet->size < sizeof(*adapter_name))
             return STATUS_INVALID_PARAMETER;

-        return STATUS_NOT_SUPPORTED;
+        if (!lock_display_devices( FALSE )) return STATUS_UNSUCCESSFUL;
+
+        LIST_FOR_EACH_ENTRY(source, &sources, struct source, entry)
+        {
+            if (memcmp( &adapter_name->header.adapterId, &source->gpu->luid, sizeof(source->gpu->luid) )) continue;
+
+            snprintf( buffer, ARRAY_SIZE(buffer), "\\?\%s\%s", source->gpu->path, guid_devinterface_display_adapterA );
+            for (i = 4; buffer[i]; ++i)
+            {
+                if (buffer[i] == '\') buffer[i] = '#';
+            }
+            asciiz_to_unicode( adapter_name->adapterDevicePath, buffer );
+            ret = STATUS_SUCCESS;
+            break;
+        }
+
+        unlock_display_devices();
+        return ret;
     }
     case DISPLAYCONFIG_DEVICE_INFO_SET_TARGET_PERSISTENCE:
     case DISPLAYCONFIG_DEVICE_INFO_GET_TARGET_BASE_TYPE: