60 lines
1.4 KiB
C#
60 lines
1.4 KiB
C#
using Voile.Audio;
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using Silk.NET.OpenAL;
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namespace Voile.OpenAL;
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public class OpenALSystem : AudioSystem
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{
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public OpenALSystem()
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{
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_al = AL.GetApi();
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_alc = ALContext.GetApi();
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Init();
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}
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public override void PlaySound(Sound sound, float volume)
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{
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var buffer = CreateAlBuffer(sound.Buffer, sound.SampleRate, sound.Channel);
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var source = CreateAlSource(buffer);
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_al.SourcePlay(source);
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}
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public override void Update(double deltaTime)
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{
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throw new NotImplementedException();
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}
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private unsafe void Init()
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{
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_device = _alc.OpenDevice("");
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_context = _alc.CreateContext(_device, null);
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_alc.MakeContextCurrent(_context);
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}
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private uint CreateAlBuffer(ReadOnlyMemory<short> data, int sampleRate, SoundChannel channels)
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{
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var buffer = _al.GenBuffer();
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var format = channels == SoundChannel.Mono ? BufferFormat.Mono16 : BufferFormat.Stereo16;
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unsafe
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{
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_al.BufferData(buffer, format, data.Pin().Pointer, data.Length, sampleRate);
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}
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return buffer;
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}
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private uint CreateAlSource(uint buffer)
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{
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var source = _al.GenSource();
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_al.SetSourceProperty(source, SourceInteger.Buffer, buffer);
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return source;
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}
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private unsafe Device* _device;
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private ALContext _alc;
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private unsafe Context* _context;
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private AL _al;
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}
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