上传YomovSDK

2026-03-03 03:15:46 +08:00
parent 9096da7e6c
commit eb97f31065
6477 changed files with 1932208 additions and 3 deletions
--- a/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/Editor.meta
+++ b/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/Editor.meta
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--- a/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/Editor/InterceptCreateSessionFeatureEditor.cs
+++ b/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/Editor/InterceptCreateSessionFeatureEditor.cs
@@ -0,0 +1,44 @@
+using UnityEngine;
+using UnityEngine.XR.OpenXR.Features;
+using UnityEngine.XR.OpenXR.Samples.InterceptFeature;
+
+namespace UnityEditor.XR.OpenXR.Samples.InterceptFeature
+{
+    // see https://docs.unity3d.com/Manual/editor-CustomEditors.html for details on how to create custom editors
+    [CustomEditor(typeof(InterceptCreateSessionFeature))]
+    public class InterceptCreateSessionFeatureEditor : UnityEditor.Editor
+    {
+        private SerializedProperty message;
+
+        void OnEnable()
+        {
+            // lookup any serialized properties you would want to draw in your UI.
+            message = serializedObject.FindProperty("message");
+        }
+
+        public override void OnInspectorGUI()
+        {
+            serializedObject.Update();
+
+            // draws the default property field.
+            EditorGUILayout.PropertyField(message);
+
+            // https://docs.unity3d.com/ScriptReference/GUILayout.Button.html
+            if (GUILayout.Button("Print This"))
+            {
+                message.stringValue = "Print This";
+            }
+
+            if (GUILayout.Button("Print That"))
+            {
+                message.stringValue = "Print That";
+            }
+
+            // See https://docs.unity3d.com/ScriptReference/GUILayout.html
+            // and https://docs.unity3d.com/ScriptReference/EditorGUILayout.html
+            // for advanced UI options.
+
+            serializedObject.ApplyModifiedProperties();
+        }
+    }
+}
--- a/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/Editor/InterceptCreateSessionFeatureEditor.cs.meta
+++ b/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/Editor/InterceptCreateSessionFeatureEditor.cs.meta
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--- a/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/Editor/InterceptFeatureInstaller.cs
+++ b/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/Editor/InterceptFeatureInstaller.cs
@@ -0,0 +1,47 @@
+using System.IO;
+using System.Linq;
+using UnityEngine;
+using UnityEngine.XR.OpenXR;
+using UnityEditor.XR.OpenXR.Features;
+using UnityEngine.XR.OpenXR.Samples.InterceptFeature;
+
+namespace UnityEditor.XR.OpenXR.Samples.InterceptFeature
+{
+    /// <summary>
+    /// Automatically enables the InterceptCreateSessionFeature feature and then self-destructs
+    /// </summary>
+    [InitializeOnLoad]
+    public class InterceptFeatureInstaller
+    {
+#if !UNITY_SAMPLE_DEV
+        private const string k_SamplePath = "Intercept Feature/Editor/InterceptFeatureInstaller.cs";
+
+        static InterceptFeatureInstaller()
+        {
+            EditorApplication.update += Install;
+        }
+
+        private static void Install()
+        {
+            EditorApplication.update -= Install;
+
+            // Automatically enable the feature
+            FeatureHelpers.RefreshFeatures(BuildTargetGroup.Standalone);
+            var feature = OpenXRSettings.Instance.GetFeature<InterceptCreateSessionFeature>();
+            if (feature != null)
+                feature.enabled = true;
+
+            // Find this script in the asset database
+            var source = AssetDatabase
+                .FindAssets(Path.GetFileNameWithoutExtension(k_SamplePath))
+                .Select(AssetDatabase.GUIDToAssetPath)
+                .FirstOrDefault(r => r.Contains(k_SamplePath));
+
+            // Self destruct
+            if (!string.IsNullOrEmpty(source))
+                AssetDatabase.DeleteAsset(source);
+        }
+
+#endif
+    }
+}
--- a/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/Editor/InterceptFeatureInstaller.cs.meta
+++ b/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/Editor/InterceptFeatureInstaller.cs.meta
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--- a/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/InterceptCreateSessionFeature.cs
+++ b/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/InterceptCreateSessionFeature.cs
@@ -0,0 +1,111 @@
+using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using AOT;
+using UnityEditor;
+using UnityEngine.XR.OpenXR.Features;
+#if UNITY_EDITOR
+using UnityEditor.XR.OpenXR.Features;
+#endif
+
+namespace UnityEngine.XR.OpenXR.Samples.InterceptFeature
+{
+    /// <summary>
+    /// Example feature showing how to intercept a single OpenXR function.
+    /// </summary>
+#if UNITY_EDITOR
+    [OpenXRFeature(UiName = "Sample: Intercept Create Session",
+        BuildTargetGroups = new[] {BuildTargetGroup.Standalone, BuildTargetGroup.WSA, BuildTargetGroup.Android},
+        Company = "Unity",
+        Desc = "Example feature extension showing how to intercept a single OpenXR function.",
+        DocumentationLink = Constants.k_DocumentationURL,
+        OpenxrExtensionStrings = "XR_test", // this extension doesn't exist, a log message will be printed that it couldn't be enabled
+        Version = "0.0.1",
+        FeatureId = featureId)]
+#endif
+    public class InterceptCreateSessionFeature : OpenXRFeature
+    {
+        /// <summary>
+        /// The feature id string. This is used to give the feature a well known id for reference.
+        /// </summary>
+        public const string featureId = "com.unity.openxr.feature.example.intercept";
+
+        /// <summary>
+        /// Message to display upon interception.
+        /// </summary>
+        public string message = "Hello from C#!";
+
+        /// <summary>
+        /// Message received from native as a result of the intercepted xrCreateSession call.
+        /// </summary>
+        public string receivedMessage { get; private set; }
+
+        /// <inheritdoc />
+        protected override IntPtr HookGetInstanceProcAddr(IntPtr func)
+        {
+            Debug.Log("EXT: registering our own xrGetInstanceProcAddr");
+            return intercept_xrCreateSession_xrGetInstanceProcAddr(func);
+        }
+
+        /// <inheritdoc />
+        protected override bool OnInstanceCreate(ulong xrInstance)
+        {
+            Internal_SetCallback(OnMessage);
+
+            // Example of sending data set by user down to native.
+            // this is unsafe!  Don't do this. Just an example.
+            Internal_SetMessage(message);
+
+            // here's one way you can grab the instance
+            Debug.Log($"EXT: Got xrInstance: {xrInstance}");
+            return true;
+        }
+
+        private delegate void OnMessageDelegate(string message);
+        [MonoPInvokeCallback(typeof(OnMessageDelegate))]
+        private static void OnMessage(string message)
+        {
+            if (message == null)
+                return;
+
+            Debug.Log(message);
+
+            var feature = OpenXRSettings.Instance.GetFeature<InterceptCreateSessionFeature>();
+            if (null == feature)
+                return;
+
+            feature.receivedMessage = message;
+        }
+
+        /// <inheritdoc />
+        protected override void OnSessionCreate(ulong xrSession)
+        {
+            // here's one way you can grab the session
+            Debug.Log($"EXT: Got xrSession: {xrSession}");
+        }
+
+        /// <inheritdoc />
+        protected override void OnSessionBegin(ulong xrSession)
+        {
+            Debug.Log($"EXT: xrBeginSession: {xrSession}");
+        }
+
+        /// <inheritdoc />
+        protected override void OnSessionEnd(ulong xrSession)
+        {
+            Debug.Log($"EXT: about to xrEndSession: {xrSession}");
+        }
+
+        private const string ExtLib = "InterceptFeaturePlugin";
+        [DllImport(ExtLib, EntryPoint = "script_intercept_xrCreateSession_xrGetInstanceProcAddr")]
+        private static extern IntPtr intercept_xrCreateSession_xrGetInstanceProcAddr(IntPtr func);
+
+        [DllImport(ExtLib, EntryPoint = "script_set_message", CharSet = CharSet.Ansi)]
+        private static extern void Internal_SetMessage(string printString);
+
+        internal delegate void ReceiveMessageDelegate(string message);
+
+        [DllImport(ExtLib, EntryPoint = "script_set_callback")]
+        static extern void Internal_SetCallback(ReceiveMessageDelegate callback);
+    }
+}
--- a/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/InterceptCreateSessionFeature.cs.meta
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--- a/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/InterceptFeature.unity
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--- a/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/InterceptFeature.unity.meta
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--- a/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/InterceptFeaturePlugin.meta
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--- a/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/InterceptFeaturePlugin/Native~/ext_intercept_create_session.cpp
+++ b/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/InterceptFeaturePlugin/Native~/ext_intercept_create_session.cpp
@@ -0,0 +1,61 @@
+#include "IUnityInterface.h"
+#include "XR/IUnityXRTrace.h"
+#include "openxr/openxr.h"
+#include <cstring>
+#include <string>
+
+typedef void (*SendMessageToScript_pfn)(const char* message);
+
+static IUnityXRTrace* s_Trace = nullptr;
+static PFN_xrGetInstanceProcAddr s_xrGetInstanceProcAddr = nullptr;
+static PFN_xrCreateSession s_xrCreateSession = nullptr;
+static std::string s_message = "not set from c#";
+static SendMessageToScript_pfn s_callback = nullptr;
+
+static XrResult XRAPI_PTR intercepted_xrCreateSession(XrInstance instance, const XrSessionCreateInfo* createInfo, XrSession* session)
+{
+    XR_TRACE_LOG(s_Trace, "Intercepted xrCreateSession, message: %s\n", s_message.c_str());
+    if (s_callback != nullptr)
+        s_callback(s_message.c_str());
+
+    return s_xrCreateSession(instance, createInfo, session);
+}
+
+static XrResult XRAPI_PTR intercept_xrCreateSession_xrGetInstanceProcAddr(XrInstance instance, const char* name, PFN_xrVoidFunction* function)
+{
+    XrResult result = s_xrGetInstanceProcAddr(instance, name, function);
+    if (strcmp("xrCreateSession", name) == 0)
+    {
+        s_xrCreateSession = (PFN_xrCreateSession)*function;
+        *function = (PFN_xrVoidFunction)intercepted_xrCreateSession;
+    }
+    return result;
+}
+
+extern "C" void UNITY_INTERFACE_EXPORT UNITY_INTERFACE_API script_set_callback(SendMessageToScript_pfn callback)
+{
+    s_callback = callback;
+}
+
+extern "C" void UNITY_INTERFACE_EXPORT UNITY_INTERFACE_API script_set_message(char* message)
+{
+    s_message = message;
+}
+
+extern "C" PFN_xrGetInstanceProcAddr UNITY_INTERFACE_EXPORT UNITY_INTERFACE_API
+script_intercept_xrCreateSession_xrGetInstanceProcAddr(PFN_xrGetInstanceProcAddr old)
+{
+    s_xrGetInstanceProcAddr = old;
+    return intercept_xrCreateSession_xrGetInstanceProcAddr;
+}
+
+extern "C" void UNITY_INTERFACE_EXPORT UNITY_INTERFACE_API
+UnityPluginLoad(IUnityInterfaces* unityInterfaces)
+{
+    s_Trace = unityInterfaces->Get<IUnityXRTrace>();
+}
+
+extern "C" void UNITY_INTERFACE_EXPORT UNITY_INTERFACE_API
+UnityPluginUnload()
+{
+}
--- a/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/InterceptFeaturePlugin/android.meta
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+++ b/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/InterceptMessageHandler.cs
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+namespace UnityEngine.XR.OpenXR.Samples.InterceptFeature
+{
+    /// <summary>
+    /// Ensures that the intercept feature is enabled and updates the message on screen
+    /// with the message received from the intercepted xrCreateSession call.
+    /// </summary>
+    public class InterceptMessageHandler : MonoBehaviour
+    {
+        public TextMesh textMesh;
+
+        private void Start()
+        {
+            var feature = OpenXRSettings.Instance.GetFeature<InterceptCreateSessionFeature>();
+            if (feature == null || !feature.enabled)
+                textMesh.text = "InterceptCreateSession feature not enabled";
+            else
+            {
+                textMesh.text = feature.receivedMessage;
+                textMesh.color = Color.white;
+            }
+        }
+    }
+}
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--- a/Packages/com.unity.xr.openxr/Samples~/InterceptFeature/README.md
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+# Intercept Feature Sample
+
+Demonstrates intercepting an OpenXR method using an OpenXR Feature.
+
+The OpenXR API allows any of its functions to be intercepted by providing a custom [xrGetInstanceProcAddr](https://www.khronos.org/registry/OpenXR/specs/1.0/html/xrspec.html#xrGetInstanceProcAddr) method.  Within Unity this can be done by implementing a custom `OpenXRFeature` and overriding the `HookGetInstanceProcAddr` to provide an alternative version of the `xrGetInstanceProcAddr` method.  Once in place this method can return alternative versions of any of the OpenXR methods.  In this sample this mechanism is used to _hook_ the [xrCreateSession](https://www.khronos.org/registry/OpenXR/specs/1.0/html/xrspec.html#xrCreateSession) method such that each time `xrCreateSession` is called it will invoke a C# callback with a message string, which is then displayed on screen.
+
+See the [Unity OpenXR Documentation](https://docs.unity3d.com/Packages/com.unity.xr.openxr@latest) for more information on developing a custom feature.
+
+See the [OpenXR API Specification](https://www.khronos.org/registry/OpenXR/specs/1.0/html/xrspec.html) for more information on OpenXR.
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