127 lines
2.3 KiB
C#
127 lines
2.3 KiB
C#
using System;
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namespace FineAudio
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{
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public class StaticSoundInstance : SoundInstance
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{
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public StaticSound Parent { get; }
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private SoundState _state = SoundState.Stopped;
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public override SoundState State
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{
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get
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{
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FAudio.FAudioSourceVoice_GetState(
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Handle,
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out var state,
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FAudio.FAUDIO_VOICE_NOSAMPLESPLAYED
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);
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if (state.BuffersQueued == 0)
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{
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Stop(true);
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}
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return _state;
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}
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protected set
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{
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_state = value;
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}
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}
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internal StaticSoundInstance(
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AudioDevice device,
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StaticSound parent
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) : base(device, parent.FormatTag, parent.BitsPerSample, parent.BlockAlign, parent.Channels, parent.SamplesPerSecond)
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{
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Parent = parent;
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}
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public override void Play(bool loop = false)
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{
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if (State == SoundState.Playing)
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{
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return;
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}
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Loop = loop;
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if (Loop)
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{
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Parent.Handle.LoopCount = 255;
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Parent.Handle.LoopBegin = Parent.LoopStart;
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Parent.Handle.LoopLength = Parent.LoopLength;
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}
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else
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{
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Parent.Handle.LoopCount = 0;
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Parent.Handle.LoopBegin = 0;
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Parent.Handle.LoopLength = 0;
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}
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FAudio.FAudioSourceVoice_SubmitSourceBuffer(
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Handle,
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ref Parent.Handle,
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IntPtr.Zero
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);
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FAudio.FAudioSourceVoice_Start(Handle, 0, 0);
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State = SoundState.Playing;
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}
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public override void Pause()
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{
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if (State == SoundState.Paused)
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{
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FAudio.FAudioSourceVoice_Stop(Handle, 0, 0);
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State = SoundState.Paused;
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}
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}
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public override void Stop(bool immediate = true)
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{
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if (immediate)
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{
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FAudio.FAudioSourceVoice_Stop(Handle, 0, 0);
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FAudio.FAudioSourceVoice_FlushSourceBuffers(Handle);
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State = SoundState.Stopped;
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}
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else
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{
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FAudio.FAudioSourceVoice_ExitLoop(Handle, 0);
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}
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}
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private void PerformSeek(uint sampleFrame)
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{
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if (State == SoundState.Playing)
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{
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FAudio.FAudioSourceVoice_Stop(Handle, 0, 0);
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FAudio.FAudioSourceVoice_FlushSourceBuffers(Handle);
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}
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Parent.Handle.PlayBegin = sampleFrame;
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Play();
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}
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public override void Seek(float seconds)
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{
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uint sampleFrame =
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(uint) (Parent.SamplesPerSecond * seconds);
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PerformSeek(sampleFrame);
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}
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public override void Seek(uint sampleFrame)
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{
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PerformSeek(sampleFrame);
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}
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public void Free()
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{
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Parent.FreeInstance(this);
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}
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}
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}
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