Define "core" as well, and say "compatibility" shouldn't be used

kainino0x · kainino0x · commit caaf346aeb2d · 2024-11-01T16:20:22.000-07:00
diff --git a/spec/index.bs b/spec/index.bs
@@ -2288,7 +2288,7 @@ interface GPU {
 
                     <div class=validusage>
                         1. |options|.{{GPURequestAdapterOptions/featureLevel}} |must| be
-                            `undefined` or `"compatibility"`.
+                            a [=feature level string=].
                     </div>
 
                     If they are met **and** the user agent chooses to return an adapter:
@@ -2431,7 +2431,7 @@ configuration is suitable for the application.
 
 <script type=idl>
 dictionary GPURequestAdapterOptions {
-    DOMString featureLevel;
+    DOMString featureLevel = "core";
     GPUPowerPreference powerPreference;
     boolean forceFallbackAdapter = false;
 };
@@ -2451,8 +2451,18 @@ enum GPUPowerPreference {
     ::
         "Feature level" for the adapter request.
 
-        Currently, the only allowed values are `undefined` and `"compatibility"`.
-        Both have no effect.
+        The allowed <dfn dfn for="">feature level string</dfn> values are:
+
+        <dl dfn-type=dfn dfn-for="feature level string">
+            : <dfn noexport>"core"</dfn>
+            :: No effect.
+            : <dfn noexport>"compatibility"</dfn>
+            :: No effect.
+
+                Note:
+                This value is reserved for future use as a way to opt into additional validation restrictions.
+                Applications should not use this value at this time.
+        </dl>
 
     : <dfn>powerPreference</dfn>
     ::
