Merge pull request #56394 from BastiaanOlij/OpenXR_Core4

1 files changed, 54 insertions, 0 deletions

diff --git a/thirdparty/openxr/src/loader/api_layer_interface.hpp b/thirdparty/openxr/src/loader/api_layer_interface.hpp
new file mode 100644
index 0000000000..b93e44584e
--- /dev/null
+++ b/thirdparty/openxr/src/loader/api_layer_interface.hpp
@@ -0,0 +1,54 @@
+// Copyright (c) 2017-2022, The Khronos Group Inc.
+// Copyright (c) 2017-2019 Valve Corporation
+// Copyright (c) 2017-2019 LunarG, Inc.
+//
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+//
+// Initial Author: Mark Young <marky@lunarg.com>
+//
+
+#pragma once
+
+#include <string>
+#include <vector>
+#include <memory>
+
+#include <openxr/openxr.h>
+
+#include "loader_platform.hpp"
+#include "loader_interfaces.h"
+
+struct XrGeneratedDispatchTable;
+
+class ApiLayerInterface {
+   public:
+    // Factory method
+    static XrResult LoadApiLayers(const std::string& openxr_command, uint32_t enabled_api_layer_count,
+                                  const char* const* enabled_api_layer_names,
+                                  std::vector<std::unique_ptr<ApiLayerInterface>>& api_layer_interfaces);
+    // Static queries
+    static XrResult GetApiLayerProperties(const std::string& openxr_command, uint32_t incoming_count, uint32_t* outgoing_count,
+                                          XrApiLayerProperties* api_layer_properties);
+    static XrResult GetInstanceExtensionProperties(const std::string& openxr_command, const char* layer_name,
+                                                   std::vector<XrExtensionProperties>& extension_properties);
+
+    ApiLayerInterface(const std::string& layer_name, LoaderPlatformLibraryHandle layer_library,
+                      std::vector<std::string>& supported_extensions, PFN_xrGetInstanceProcAddr get_instance_proc_addr,
+                      PFN_xrCreateApiLayerInstance create_api_layer_instance);
+    virtual ~ApiLayerInterface();
+
+    PFN_xrGetInstanceProcAddr GetInstanceProcAddrFuncPointer() { return _get_instance_proc_addr; }
+    PFN_xrCreateApiLayerInstance GetCreateApiLayerInstanceFuncPointer() { return _create_api_layer_instance; }
+
+    std::string LayerName() { return _layer_name; }
+
+    // Generated methods
+    bool SupportsExtension(const std::string& extension_name) const;
+
+   private:
+    std::string _layer_name;
+    LoaderPlatformLibraryHandle _layer_library;
+    PFN_xrGetInstanceProcAddr _get_instance_proc_addr;
+    PFN_xrCreateApiLayerInstance _create_api_layer_instance;
+    std::vector<std::string> _supported_extensions;
+};