92 lines
2.6 KiB
C++
92 lines
2.6 KiB
C++
// Copyright (c) 2017-2024, The Khronos Group Inc.
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// Copyright (c) 2017-2019 Valve Corporation
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// Copyright (c) 2017-2019 LunarG, Inc.
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//
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// SPDX-License-Identifier: Apache-2.0 OR MIT
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//
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// Initial Author: Mark Young <marky@lunarg.com>
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//
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#pragma once
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#include <xr_dependencies.h>
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#include <openxr/openxr_platform.h>
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#ifdef XR_USE_PLATFORM_ANDROID
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#include <json/value.h>
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#include <android/asset_manager_jni.h>
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#include "android_utilities.h"
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#endif // XR_USE_PLATFORM_ANDROID
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#ifdef XR_KHR_LOADER_INIT_SUPPORT
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/*!
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* Stores a copy of the data passed to the xrInitializeLoaderKHR function in a singleton.
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*/
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class LoaderInitData {
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public:
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/*!
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* Singleton accessor.
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*/
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static LoaderInitData& instance() {
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static LoaderInitData obj;
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return obj;
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}
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#if defined(XR_USE_PLATFORM_ANDROID)
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/*!
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* Type alias for the platform-specific structure type.
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*/
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using StructType = XrLoaderInitInfoAndroidKHR;
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/*!
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* Native library path.
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*/
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std::string _native_library_path;
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/*!
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* Android asset manager.
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*/
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AAssetManager* _android_asset_manager;
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#else
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#error "Platform specific XR_KHR_loader_init structure is not defined for this platform."
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#endif
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/*!
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* Get our copy of the data, casted to pass to the runtime's matching method.
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*/
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const XrLoaderInitInfoBaseHeaderKHR* getParam() const { return reinterpret_cast<const XrLoaderInitInfoBaseHeaderKHR*>(&_data); }
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/*!
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* Get the data via its real structure type.
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*/
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const StructType& getData() const { return _data; }
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/*!
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* Has this been correctly initialized?
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*/
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bool initialized() const noexcept { return _initialized; }
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/*!
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* Initialize loader data - called by InitializeLoaderInitData() and thus ultimately by the loader's xrInitializeLoaderKHR
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* implementation. Each platform that needs this extension will provide an implementation of this.
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*/
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XrResult initialize(const XrLoaderInitInfoBaseHeaderKHR* info);
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private:
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//! Private constructor, forces use of singleton accessor.
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LoaderInitData() = default;
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//! Platform-specific init data
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StructType _data = {};
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//! Flag for indicating whether _data is valid.
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bool _initialized = false;
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};
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//! Initialize loader init data, where required.
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XrResult InitializeLoaderInitData(const XrLoaderInitInfoBaseHeaderKHR* loaderInitInfo);
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#ifdef XR_USE_PLATFORM_ANDROID
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XrResult GetPlatformRuntimeVirtualManifest(Json::Value& out_manifest);
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std::string GetAndroidNativeLibraryDir();
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void* Android_Get_Asset_Manager();
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#endif // XR_USE_PLATFORM_ANDROID
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#endif // XR_KHR_LOADER_INIT_SUPPORT
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