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Enable stereo spatialization when using OpenAL Soft #2034

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Enable stereo spatialization when using OpenAL Soft #2034

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11 changes: 11 additions & 0 deletions src/lime/_internal/backend/native/NativeAudioSource.hx
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@ class NativeAudioSource

#if lime_openalsoft
private static var hasDirectChannelsExt:Null<Bool>;
private static var hasSourceSpatializeExt:Null<Bool>;
#end

private var buffers:Array<ALBuffer>;
Expand Down Expand Up @@ -150,6 +151,16 @@ class NativeAudioSource
{
AL.sourcei(handle, AL.DIRECT_CHANNELS_SOFT, AL.REMIX_UNMATCHED_SOFT);
}

if (hasSourceSpatializeExt == null)
{
hasSourceSpatializeExt = AL.isExtensionPresent("AL_SOFT_source_spatialize");
}

if (hasSourceSpatializeExt)
{
AL.sourcei(handle, AL.SOURCE_SPATIALIZE_SOFT, AL.TRUE);
}
#end

samples = Std.int((dataLength * 8.0) / (parent.buffer.channels * parent.buffer.bitsPerSample));
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3 changes: 3 additions & 0 deletions src/lime/media/openal/AL.hx
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Expand Up @@ -239,6 +239,9 @@ class AL
/* AL_SOFT_direct_channels_remix extension */
public static inline var DROP_UNMATCHED_SOFT:Int = 0x0001;
public static inline var REMIX_UNMATCHED_SOFT:Int = 0x0002;
/* AL_SOFT_source_spatialize extension */
public static inline var SOURCE_SPATIALIZE_SOFT:Int = 0x1214;
public static inline var AUTO_SOFT:Int = 0x0002;
#end

public static function removeDirectFilter(source:ALSource)
Expand Down