headers from v1.31.5

ios/include/backend/platforms/VulkanPlatform.h

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+/*
+ * Copyright (C) 2019 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.
+ */
+
+#ifndef TNT_FILAMENT_BACKEND_PLATFORMS_VULKANPLATFORM_H
+#define TNT_FILAMENT_BACKEND_PLATFORMS_VULKANPLATFORM_H
+
+#include <backend/Platform.h>
+
+namespace filament::backend {
+
+/**
+ * A Platform interface that creates a Vulkan backend.
+ */
+
+class VulkanPlatform : public Platform {
+public:
+    struct SurfaceBundle {
+        void* surface;
+        // On certain platforms, the extent of the surface cannot be queried from Vulkan. In those
+        // situations, we allow the frontend to pass in the extent to use in creating the swap
+        // chains. Platform implementation should set extent to 0 if they do not expect to set the
+        // swap chain extent.
+        uint32_t width;
+        uint32_t height;
+    };
+
+    // Given a Vulkan instance and native window handle, creates the platform-specific surface.
+    virtual SurfaceBundle createVkSurfaceKHR(void* nativeWindow, void* instance,
+        uint64_t flags) noexcept = 0;
+
+   ~VulkanPlatform() override;
+};
+
+} // namespace filament::backend
+
+#endif //TNT_FILAMENT_BACKEND_PLATFORMS_VULKANPLATFORM_H