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