is it possible to pass a pointer to an array of structs in C#? im trying to make it work with Buffer

Vvaia0 is it possible to pass a pointer to an array of structs in C#? im trying to make...

P

Perksey•9/28/23, 12:57 PM

yes, use

fixed

fixed

fixed

fixed or the

ref

ref

ref

ref overlosds

V

vaia0OP•9/28/23, 1:04 PM

V

vaia0OP•9/28/23, 1:04 PM

V

vaia0OP•9/28/23, 1:04 PM

V

vaia0OP•9/28/23, 1:05 PM

im not sure what im doing wrong here... doesnt display anything

P

Perksey•9/28/23, 1:11 PM

have you tried using RenderDoc

V

vaia0OP•9/28/23, 1:40 PM

looks like its not receiving indices

V

vaia0OP•9/28/23, 1:41 PM

any reason why would that happen with ReadOnlySpan instead of Span?

V

vaia0OP•9/28/23, 1:41 PM

indices are readonly uint[]

Vvaia0 any reason why would that happen with ReadOnlySpan instead of Span?

P

Perksey•9/28/23, 2:27 PM

no idea, it seems like our overload is implemented correctly

        public unsafe void BufferData<T0>([Flow(Silk.NET.Core.Native.FlowDirection.In)] GLEnum target, [Count(Parameter = "size"), Flow(Silk.NET.Core.Native.FlowDirection.In)] ReadOnlySpan<T0> data, [Flow(Silk.NET.Core.Native.FlowDirection.In)] GLEnum usage) where T0 : unmanaged
        {
            // ImplicitCountSpanOverloader
            BufferData(target, (nuint) ((data.Length) * Unsafe.SizeOf<T0>()), in data.GetPinnableReference(), usage);
        }

        public unsafe void BufferData<T0>([Flow(Silk.NET.Core.Native.FlowDirection.In)] GLEnum target, [Count(Parameter = "size"), Flow(Silk.NET.Core.Native.FlowDirection.In)] ReadOnlySpan<T0> data, [Flow(Silk.NET.Core.Native.FlowDirection.In)] GLEnum usage) where T0 : unmanaged
        {
            // ImplicitCountSpanOverloader
            BufferData(target, (nuint) ((data.Length) * Unsafe.SizeOf<T0>()), in data.GetPinnableReference(), usage);
        }

        public unsafe void BufferData<T0>([Flow(Silk.NET.Core.Native.FlowDirection.In)] GLEnum target, [Count(Parameter = "size"), Flow(Silk.NET.Core.Native.FlowDirection.In)] ReadOnlySpan<T0> data, [Flow(Silk.NET.Core.Native.FlowDirection.In)] GLEnum usage) where T0 : unmanaged
        {
            // ImplicitCountSpanOverloader
            BufferData(target, (nuint) ((data.Length) * Unsafe.SizeOf<T0>()), in data.GetPinnableReference(), usage);
        }

        public unsafe void BufferData<T0>([Flow(Silk.NET.Core.Native.FlowDirection.In)] GLEnum target, [Count(Parameter = "size"), Flow(Silk.NET.Core.Native.FlowDirection.In)] ReadOnlySpan<T0> data, [Flow(Silk.NET.Core.Native.FlowDirection.In)] GLEnum usage) where T0 : unmanaged
        {
            // ImplicitCountSpanOverloader
            BufferData(target, (nuint) ((data.Length) * Unsafe.SizeOf<T0>()), in data.GetPinnableReference(), usage);
        }

NNimbus Fox I tried both. No audio was played

R

roeyskoe•9/28/23, 2:57 PM

I checked and OpenAL soft does work for me, M1 macOS 14 (Sonoma)

Rroeyskoe I checked and OpenAL soft does work for me, M1 macOS 14 (Sonoma)

N

Nimbus Fox•9/28/23, 2:57 PM

You’re getting a device?

R

roeyskoe•9/28/23, 2:58 PM

Yes, audio plays just as expected

N

Nimbus Fox•9/28/23, 2:58 PM

Hmmm weird. Either it’s a M2 issue or… something else

R

roeyskoe•9/28/23, 2:59 PM

It would be a bit strange if M2 would be the issue

N

Nimbus Fox•9/28/23, 2:59 PM

Agreed

R

roeyskoe•9/28/23, 2:59 PM

Have you checked your implementation on some other device?

N

Nimbus Fox•9/28/23, 2:59 PM

It works on linux and windows

N

Nimbus Fox•9/28/23, 3:02 PM

using NAudio.Vorbis;
using NAudio.Wave;
using Silk.NET.OpenAL;

namespace PocketEngine.Core.Managers;

public static unsafe class AudioManager {
    internal static AL AL = null!;
    internal static ALContext Context = null!;
    private static VorbisWaveReader? _reader;
    private static Device* _device;
    private static Context* _context;
    private static uint _buffer;
    private static uint _source;

    internal static void Initialize() {
        AL = AL.GetApi();
        Context = ALContext.GetApi();
        _device = Context.OpenDevice("");
        _context = Context.CreateContext(_device, null);
        Context.MakeContextCurrent(_context);
    }

    internal static void Deinitialize() {
        CleanUp();
        Context.DestroyContext(_context);
        Context.CloseDevice(_device);
    }

    public static void Play(string path) {
        CleanUp();

        AL.GetError();

        _source = AL.GenSource();
        
        _buffer = AL.GenBuffer();
        _reader = new VorbisWaveReader(path);
        var provider = _reader.ToStereo().ToWaveProvider16();
        var buffer = new byte[_reader.Length];
        provider.Read(buffer, 0, buffer.Length);
        AL.BufferData(_buffer, BufferFormat.Stereo16, buffer, provider.WaveFormat.SampleRate);
        AL.SetSourceProperty(_source, SourceBoolean.Looping, false);
        AL.SetSourceProperty(_source, SourceInteger.Buffer, _buffer);
        AL.SourcePlay(_source);
        
        AL.SetSourceProperty(_source, SourceFloat.Gain, 0.02f);
    }

    public static void Stop() {
        AL.SourceStop(_source);
    }

    public static void Update(double delta) {
    }

    private static void CleanUp() {
        if (_reader == null) {
            return;
        }
        AL.DeleteBuffer(_buffer);
        AL.DeleteSource(_source);
        _reader.Dispose();
    }
}

using NAudio.Vorbis;
using NAudio.Wave;
using Silk.NET.OpenAL;

namespace PocketEngine.Core.Managers;

public static unsafe class AudioManager {
    internal static AL AL = null!;
    internal static ALContext Context = null!;
    private static VorbisWaveReader? _reader;
    private static Device* _device;
    private static Context* _context;
    private static uint _buffer;
    private static uint _source;

    internal static void Initialize() {
        AL = AL.GetApi();
        Context = ALContext.GetApi();
        _device = Context.OpenDevice("");
        _context = Context.CreateContext(_device, null);
        Context.MakeContextCurrent(_context);
    }

    internal static void Deinitialize() {
        CleanUp();
        Context.DestroyContext(_context);
        Context.CloseDevice(_device);
    }

    public static void Play(string path) {
        CleanUp();

        AL.GetError();

        _source = AL.GenSource();
        
        _buffer = AL.GenBuffer();
        _reader = new VorbisWaveReader(path);
        var provider = _reader.ToStereo().ToWaveProvider16();
        var buffer = new byte[_reader.Length];
        provider.Read(buffer, 0, buffer.Length);
        AL.BufferData(_buffer, BufferFormat.Stereo16, buffer, provider.WaveFormat.SampleRate);
        AL.SetSourceProperty(_source, SourceBoolean.Looping, false);
        AL.SetSourceProperty(_source, SourceInteger.Buffer, _buffer);
        AL.SourcePlay(_source);
        
        AL.SetSourceProperty(_source, SourceFloat.Gain, 0.02f);
    }

    public static void Stop() {
        AL.SourceStop(_source);
    }

    public static void Update(double delta) {
    }

    private static void CleanUp() {
        if (_reader == null) {
            return;
        }
        AL.DeleteBuffer(_buffer);
        AL.DeleteSource(_source);
        _reader.Dispose();
    }
}

using NAudio.Vorbis;
using NAudio.Wave;
using Silk.NET.OpenAL;

namespace PocketEngine.Core.Managers;

public static unsafe class AudioManager {
    internal static AL AL = null!;
    internal static ALContext Context = null!;
    private static VorbisWaveReader? _reader;
    private static Device* _device;
    private static Context* _context;
    private static uint _buffer;
    private static uint _source;

    internal static void Initialize() {
        AL = AL.GetApi();
        Context = ALContext.GetApi();
        _device = Context.OpenDevice("");
        _context = Context.CreateContext(_device, null);
        Context.MakeContextCurrent(_context);
    }

    internal static void Deinitialize() {
        CleanUp();
        Context.DestroyContext(_context);
        Context.CloseDevice(_device);
    }

    public static void Play(string path) {
        CleanUp();

        AL.GetError();

        _source = AL.GenSource();
        
        _buffer = AL.GenBuffer();
        _reader = new VorbisWaveReader(path);
        var provider = _reader.ToStereo().ToWaveProvider16();
        var buffer = new byte[_reader.Length];
        provider.Read(buffer, 0, buffer.Length);
        AL.BufferData(_buffer, BufferFormat.Stereo16, buffer, provider.WaveFormat.SampleRate);
        AL.SetSourceProperty(_source, SourceBoolean.Looping, false);
        AL.SetSourceProperty(_source, SourceInteger.Buffer, _buffer);
        AL.SourcePlay(_source);
        
        AL.SetSourceProperty(_source, SourceFloat.Gain, 0.02f);
    }

    public static void Stop() {
        AL.SourceStop(_source);
    }

    public static void Update(double delta) {
    }

    private static void CleanUp() {
        if (_reader == null) {
            return;
        }
        AL.DeleteBuffer(_buffer);
        AL.DeleteSource(_source);
        _reader.Dispose();
    }
}

using NAudio.Vorbis;
using NAudio.Wave;
using Silk.NET.OpenAL;

namespace PocketEngine.Core.Managers;

public static unsafe class AudioManager {
    internal static AL AL = null!;
    internal static ALContext Context = null!;
    private static VorbisWaveReader? _reader;
    private static Device* _device;
    private static Context* _context;
    private static uint _buffer;
    private static uint _source;

    internal static void Initialize() {
        AL = AL.GetApi();
        Context = ALContext.GetApi();
        _device = Context.OpenDevice("");
        _context = Context.CreateContext(_device, null);
        Context.MakeContextCurrent(_context);
    }

    internal static void Deinitialize() {
        CleanUp();
        Context.DestroyContext(_context);
        Context.CloseDevice(_device);
    }

    public static void Play(string path) {
        CleanUp();

        AL.GetError();

        _source = AL.GenSource();
        
        _buffer = AL.GenBuffer();
        _reader = new VorbisWaveReader(path);
        var provider = _reader.ToStereo().ToWaveProvider16();
        var buffer = new byte[_reader.Length];
        provider.Read(buffer, 0, buffer.Length);
        AL.BufferData(_buffer, BufferFormat.Stereo16, buffer, provider.WaveFormat.SampleRate);
        AL.SetSourceProperty(_source, SourceBoolean.Looping, false);
        AL.SetSourceProperty(_source, SourceInteger.Buffer, _buffer);
        AL.SourcePlay(_source);
        
        AL.SetSourceProperty(_source, SourceFloat.Gain, 0.02f);
    }

    public static void Stop() {
        AL.SourceStop(_source);
    }

    public static void Update(double delta) {
    }

    private static void CleanUp() {
        if (_reader == null) {
            return;
        }
        AL.DeleteBuffer(_buffer);
        AL.DeleteSource(_source);
        _reader.Dispose();
    }
}

N

Nimbus Fox•9/28/23, 3:02 PM

My code

N

Nimbus Fox•9/28/23, 3:02 PM

Currently experimenting so it’s a bit messy

R

roeyskoe•9/28/23, 3:05 PM

This

AL = AL.GetApi();
Context = ALContext.GetApi();

AL = AL.GetApi();
Context = ALContext.GetApi();

AL = AL.GetApi();
Context = ALContext.GetApi();

AL = AL.GetApi();
Context = ALContext.GetApi();

Should be

AL = AL.GetApi(true);
Context = ALContext.GetApi(true);

AL = AL.GetApi(true);
Context = ALContext.GetApi(true);

AL = AL.GetApi(true);
Context = ALContext.GetApi(true);

AL = AL.GetApi(true);
Context = ALContext.GetApi(true);

N

Nimbus Fox•9/28/23, 3:06 PM

I set them to true too

N

Nimbus Fox•9/28/23, 3:06 PM

Still no device

R

roeyskoe•9/28/23, 3:06 PM

And you have Silk.NET.OpenAL.Soft.Native package installed?

N

Nimbus Fox•9/28/23, 3:07 PM

Yup

N

Nimbus Fox•9/28/23, 3:07 PM

Double checked my csproj

N

Nimbus Fox•9/28/23, 3:10 PM

Version: 1.21.1.2

R

roeyskoe•9/28/23, 3:10 PM

Yup, are you on .NET 7? NativeAOT or anything else?

N

Nimbus Fox•9/28/23, 3:11 PM

.net 8 rc 1

N

Nimbus Fox•9/28/23, 3:11 PM

Debug build

T

TechPizza•9/28/23, 3:12 PM

i would not be surprised if there some net8 assembly loading changes

T

TechPizza•9/28/23, 3:12 PM

i would recommend checking whether net7 works

N

Nimbus Fox•9/28/23, 3:12 PM

Will do

N

Nimbus Fox•9/28/23, 3:16 PM

Nope I get the same silence

N

Nimbus Fox•9/28/23, 3:17 PM

N

Nimbus Fox•9/28/23, 3:18 PM

.net 7.0 and .net 8.0 give me a null pointer

R

roeyskoe•9/28/23, 3:20 PM

That is strange, anyone else here have M2 to test this?

N

Nimbus Fox•9/28/23, 3:22 PM

I thought it was my headphones (Corsair) that was the problem. Unplugged them and got the same result

N

Nimbus Fox•9/28/23, 3:22 PM

Edge cases are fun

N

Nimbus Fox•9/28/23, 3:23 PM

    <ItemGroup>
      <PackageReference Include="NAudio.Core" Version="2.2.1" />
      <PackageReference Include="NAudio.Vorbis" Version="1.5.0" />
      <PackageReference Include="NVorbis" Version="0.10.5" />
      <PackageReference Include="Silk.NET.GLFW" Version="2.17.1" />
      <PackageReference Include="Silk.NET.Input.Glfw" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenAL" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenAL.Extensions.Soft" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenAL.Soft.Native" Version="1.21.1.2" />
      <PackageReference Include="Silk.NET.OpenGLES" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenGLES.ANGLE.Native" Version="2022.3.11" />
      <PackageReference Include="Silk.NET.Windowing.Glfw" Version="2.17.1" />
      <PackageReference Include="StbImageSharp" Version="2.27.13" />
    </ItemGroup>

    <ItemGroup>
      <PackageReference Include="NAudio.Core" Version="2.2.1" />
      <PackageReference Include="NAudio.Vorbis" Version="1.5.0" />
      <PackageReference Include="NVorbis" Version="0.10.5" />
      <PackageReference Include="Silk.NET.GLFW" Version="2.17.1" />
      <PackageReference Include="Silk.NET.Input.Glfw" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenAL" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenAL.Extensions.Soft" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenAL.Soft.Native" Version="1.21.1.2" />
      <PackageReference Include="Silk.NET.OpenGLES" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenGLES.ANGLE.Native" Version="2022.3.11" />
      <PackageReference Include="Silk.NET.Windowing.Glfw" Version="2.17.1" />
      <PackageReference Include="StbImageSharp" Version="2.27.13" />
    </ItemGroup>

    <ItemGroup>
      <PackageReference Include="NAudio.Core" Version="2.2.1" />
      <PackageReference Include="NAudio.Vorbis" Version="1.5.0" />
      <PackageReference Include="NVorbis" Version="0.10.5" />
      <PackageReference Include="Silk.NET.GLFW" Version="2.17.1" />
      <PackageReference Include="Silk.NET.Input.Glfw" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenAL" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenAL.Extensions.Soft" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenAL.Soft.Native" Version="1.21.1.2" />
      <PackageReference Include="Silk.NET.OpenGLES" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenGLES.ANGLE.Native" Version="2022.3.11" />
      <PackageReference Include="Silk.NET.Windowing.Glfw" Version="2.17.1" />
      <PackageReference Include="StbImageSharp" Version="2.27.13" />
    </ItemGroup>

    <ItemGroup>
      <PackageReference Include="NAudio.Core" Version="2.2.1" />
      <PackageReference Include="NAudio.Vorbis" Version="1.5.0" />
      <PackageReference Include="NVorbis" Version="0.10.5" />
      <PackageReference Include="Silk.NET.GLFW" Version="2.17.1" />
      <PackageReference Include="Silk.NET.Input.Glfw" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenAL" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenAL.Extensions.Soft" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenAL.Soft.Native" Version="1.21.1.2" />
      <PackageReference Include="Silk.NET.OpenGLES" Version="2.17.1" />
      <PackageReference Include="Silk.NET.OpenGLES.ANGLE.Native" Version="2022.3.11" />
      <PackageReference Include="Silk.NET.Windowing.Glfw" Version="2.17.1" />
      <PackageReference Include="StbImageSharp" Version="2.27.13" />
    </ItemGroup>

In case you see a pkg that could be causing an issue

R

roeyskoe•9/28/23, 3:25 PM

Cant think of a reason why any of those would be a problem

R

roeyskoe•9/28/23, 3:26 PM

Just for a sanity check, can you try with the sample project: https://github.com/dotnet/Silk.NET/tree/main/examples/CSharp/OpenAL%20Demos/WavePlayer

R

roeyskoe•9/28/23, 3:26 PM

Just add the necessary stuff for AL soft

N

Nimbus Fox•9/28/23, 3:27 PM

Will do

N

Nimbus Fox•9/28/23, 3:31 PM

Sanity check. I have a audio device

N

Nimbus Fox•9/28/23, 3:32 PM

But nothing plays

N

Nimbus Fox•9/28/23, 3:33 PM

Ok correction. Audio plays through the mac. But not my headphones

N

Nimbus Fox•9/28/23, 3:33 PM

So progress

R

roeyskoe•9/28/23, 3:34 PM

Well that is interesting

is it possible to pass a pointer to an array of structs in C#? im trying to make it work with Buffer

Similar Threads