update headers

ios/include/backend/SamplerDescriptor.h

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//! \file
+
+#ifndef TNT_FILAMENT_BACKEND_SAMPLERDESCRIPTOR_H
+#define TNT_FILAMENT_BACKEND_SAMPLERDESCRIPTOR_H
+
+#include <backend/DriverEnums.h>
+#include <backend/Handle.h>
+
+#include <utils/compiler.h>
+
+#include <stddef.h>
+#include <stdint.h>
+
+namespace filament::backend {
+
+struct UTILS_PUBLIC SamplerDescriptor {
+    Handle<HwTexture> t;
+    SamplerParams s{};
+};
+
+} // namespace filament::backend
+
+#endif // TNT_FILAMENT_BACKEND_SAMPLERDESCRIPTOR_H