C#•7d ago

browser-wasm hell

i'm trying to use raylib with browser-wasm and i get error whenever i try to call something from raylib:

MONO_WASM:    at System.Reflection.MethodBaseInvoker.InvokeDirectByRefWithFewArgs(Object , Span`1 , BindingFlags )
ManagedError@http://localhost:52900/_framework/dotnet.runtime.js:3:26843
Jn@http://localhost:52900/_framework/dotnet.runtime.js:3:31615
kr@http://localhost:52900/_framework/dotnet.runtime.js:3:35530
Ml/e.onRuntimeInitialized/l.javaScriptExports.call_entry_point@http://localhost:52900/_framework/dotnet.runtime.js:3:209315
Fc@http://localhost:52900/_framework/dotnet.runtime.js:3:136994
Mc@http://localhost:52900/_framework/dotnet.runtime.js:3:136420
run@http://localhost:52900/_framework/dotnet.js:3:35124
@http://localhost:52900/main.js:17:14
logging.ts:32:12
    d logging.ts:32
    Me exit.ts:161
    Me exit.ts:52
    Mc run.ts:22

MONO_WASM:    at System.Reflection.MethodBaseInvoker.InvokeDirectByRefWithFewArgs(Object , Span`1 , BindingFlags )
ManagedError@http://localhost:52900/_framework/dotnet.runtime.js:3:26843
Jn@http://localhost:52900/_framework/dotnet.runtime.js:3:31615
kr@http://localhost:52900/_framework/dotnet.runtime.js:3:35530
Ml/e.onRuntimeInitialized/l.javaScriptExports.call_entry_point@http://localhost:52900/_framework/dotnet.runtime.js:3:209315
Fc@http://localhost:52900/_framework/dotnet.runtime.js:3:136994
Mc@http://localhost:52900/_framework/dotnet.runtime.js:3:136420
run@http://localhost:52900/_framework/dotnet.js:3:35124
@http://localhost:52900/main.js:17:14
logging.ts:32:12
    d logging.ts:32
    Me exit.ts:161
    Me exit.ts:52
    Mc run.ts:22

here's my Program.cs: https://hastebin.skyra.pw/ewuqobipew.csharp and .csproj: https://hastebin.skyra.pw/hokisihaje.htm

10 Replies

canton7•7d ago

Maybe I'm missing something but.... Isn't the entire point of the browser sandbox, and use of WASM, to prevent people from running arbitrary native code?

danilwaffle•7d ago

this should be possible i referenced DotnetRaylibWasm but it crashes when you try to enter loop now it doesn't even begin maybe i need directpinvoke? or is it thing for static library oh it didn't copy it to the folder

canton7•7d ago

As in, https://github.com/stanoddly/DotnetRaylibWasm? I don't see any static libraries in their csproj? But maybe I'm missing a bit of how this all works

GitHub

GitHub - stanoddly/DotnetRaylibWasm: Prototype for .NET 7 with Rayl...

Prototype for .NET 7 with Raylib compiled into WebAssembly (wasm) - stanoddly/DotnetRaylibWasm

danilwaffle•7d ago

weird

canton7•7d ago

Ah, I see you've copied their csproj (I was looking at the Examples csproj, which is normally a good place to start)

danilwaffle•7d ago

examples are just normal raylib-cs' examples waow, i renamed libraylib.a to raylib.a and it booted

danilwaffle•7d ago

now it's same issue as in dotnetraylibwasm

danilwaffle•7d ago

oh chrome gives more details seems like it's aot issue it doesn't seem i can export emscripten functions 0>EXEC: Warning : invalid item in EXPORTED_RUNTIME_METHODS: emscripten_set_main_loop

danilwaffle•7d ago

i guess no asyncify for me

danilwaffle•6d ago

here we go again, back to wasm hell now i have this code:

internal unsafe partial class Program
{
    private delegate void em_callback_func();
    
    [LibraryImport("__Internal_emscripten")]
    private static partial void emscripten_set_main_loop(
        em_callback_func callback,
        int fps,
        byte simulate_infinite_loop
    );

    public static void Main(string[] args)
    {
        const int screenWidth = 800;
        const int screenHeight = 450;

        InitWindow(screenWidth, screenHeight, "raylib [core] example - basic window");
        emscripten_set_main_loop(Update, 0, 1);
        CloseWindow();
    }
    
    private static void Update()
    {
        BeginDrawing();
        ClearBackground(new Color(245, 245, 245, 255));

        DrawText("Congrats! You created your first window!", 190, 200, 20, new Color(100, 100, 100, 255));

        EndDrawing();
    }
}

internal unsafe partial class Program
{
    private delegate void em_callback_func();
    
    [LibraryImport("__Internal_emscripten")]
    private static partial void emscripten_set_main_loop(
        em_callback_func callback,
        int fps,
        byte simulate_infinite_loop
    );

    public static void Main(string[] args)
    {
        const int screenWidth = 800;
        const int screenHeight = 450;

        InitWindow(screenWidth, screenHeight, "raylib [core] example - basic window");
        emscripten_set_main_loop(Update, 0, 1);
        CloseWindow();
    }
    
    private static void Update()
    {
        BeginDrawing();
        ClearBackground(new Color(245, 245, 245, 255));

        DrawText("Congrats! You created your first window!", 190, 200, 20, new Color(100, 100, 100, 255));

        EndDrawing();
    }
}

Gaming

Programming

browser-wasm hell