Question

我有一个使用dll的Unity项目。

这是我尝试使用的示例：https://www.youtube.com/watch?v=C6V1f86x058

为了使其正常运行，我：

创建了C＃脚本
在Assets文件夹下添加了dll

我的脚本是

using System;
using System.Runtime.InteropServices;
using UnityEngine;
using UnityEngine.Rendering;

public class TestScript : MonoBehaviour
{
    //the name of the DLL you want to load stuff from
    private const string pluginName = "AndroidNativeLib";
    //native interface
    [DllImport(pluginName)]
    private static extern IntPtr getEventFunction();

    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
    public delegate void DebugDelegate(string str);

    static void CallBackFunction(string str) { Debug.Log(str); }

    [DllImport(pluginName)]
    public static extern void SetDebugFunction(IntPtr fp);


    private CommandBuffer cmd;
    // Start is called before the first frame update
    void Start()
    {
        DebugDelegate callback_delegate = new DebugDelegate(CallBackFunction);
        // Convert callback_delegate into a function pointer that can be
        // used in unmanaged code.
        IntPtr intptr_delegate =
            Marshal.GetFunctionPointerForDelegate(callback_delegate);
        // Call the API passing along the function pointer.
        SetDebugFunction(intptr_delegate);

        //crating the command buffer and attaching it to camera
        cmd = new CommandBuffer();
        cmd.name = pluginName;
        var camera = Camera.main;
        camera.AddCommandBuffer(CameraEvent.AfterGBuffer, cmd);
    }

    // Update is called once per frame
    void Update()
    {
        cmd.IssuePluginEvent(getEventFunction(), 0);
    }
}

我的dll是：

#include "stdafx.h"
#include "IUnityGraphics.h"

//make sure this appears before IUnityGraphicsD3D11
#include "d3d11.h"

#include "IUnityGraphicsD3D11.h"


// debug event
typedef void(*FuncPtr)(const char *);
FuncPtr Debug;

namespace globals {
    ID3D11Device *device = nullptr;
    ID3D11DeviceContext *context = nullptr;
} // namespace globals

extern "C" {

    UNITY_INTERFACE_EXPORT void SetDebugFunction(FuncPtr fp) { Debug = fp; }

    // Plugin function to handle a specific rendering event
    static void UNITY_INTERFACE_API  UNITY_INTERFACE_API OnRenderEvent(int eventID) {
        Debug("Hello world");
    }


    // Unity plugin load event
    void UNITY_INTERFACE_EXPORT UNITY_INTERFACE_API
        UnityPluginLoad(IUnityInterfaces *unityInterfaces) {
        auto s_UnityInterfaces = unityInterfaces;
        IUnityGraphicsD3D11 *d3d11 = unityInterfaces->Get<IUnityGraphicsD3D11>();
        globals::device = d3d11->GetDevice();
        globals::device->GetImmediateContext(&globals::context);
    }

    // Unity plugin unload event
    void UNITY_INTERFACE_EXPORT UNITY_INTERFACE_API UnityPluginUnload() {}

    // Freely defined function to pass a callback to plugin-specific scripts
    UnityRenderingEvent UNITY_INTERFACE_EXPORT UNITY_INTERFACE_API
        getEventFunction() {
        return OnRenderEvent;
    }
}

在运行此示例时，我看不到任何输出，并且看起来不起作用。因此，我尝试对其进行调试。我可以在C＃脚本中获取调试点，但是如果我尝试从dll代码中获取调试点，就会注意到。

所以，问题是-如何调试dll代码？

Answer 1

此帮助吗：https://forum.unity.com/threads/how-to-build-and-debug-external-dlls.161685/

创建一个使用通配符查找所有源代码的.csproj文件

将此C＃项目添加到Visual Studio解决方案中

使用MSBuild构建后目标将Visual Studio的PDB符号转换为Mono的MDB格式

从Unity正常使用MonoDevelop进行调试

源代码不应位于Assets文件夹中，但生成的DLL应该位于

如何调试dll（Unity）？

1 个答案: