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Merge pull request #219 from HiberWorld/bugfix/intermediary-buffer-ref

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Fix intermediaryBufferView losing reference to wasm memory after heap resize
This commit is contained in:
David Reid
2020-11-13 20:25:50 +10:00
committed by GitHub
parent 244182b3c8 56d22ae3da
commit 05357d9f54
1 changed files with 10 additions and 0 deletions
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miniaudio.h
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@@ -31283,6 +31283,11 @@ static ma_result ma_device_init_by_type__webaudio(ma_context* pContext, const ma
return; /* This means the device has been uninitialized. */ return; /* This means the device has been uninitialized. */
} }
if(device.intermediaryBufferView.length == 0) {
/* Recreate intermediaryBufferView when losing reference to the underlying buffer, probably due to emscripten resizing heap. */
device.intermediaryBufferView = new Float32Array(Module.HEAPF32.buffer, device.intermediaryBuffer, device.intermediaryBufferSizeInBytes);
}
/* Make sure silence it output to the AudioContext destination. Not doing this will cause sound to come out of the speakers! */ /* Make sure silence it output to the AudioContext destination. Not doing this will cause sound to come out of the speakers! */
for (var iChannel = 0; iChannel < e.outputBuffer.numberOfChannels; ++iChannel) { for (var iChannel = 0; iChannel < e.outputBuffer.numberOfChannels; ++iChannel) {
e.outputBuffer.getChannelData(iChannel).fill(0.0); e.outputBuffer.getChannelData(iChannel).fill(0.0);
@@ -31343,6 +31348,11 @@ static ma_result ma_device_init_by_type__webaudio(ma_context* pContext, const ma
return; /* This means the device has been uninitialized. */ return; /* This means the device has been uninitialized. */
} }
if(device.intermediaryBufferView.length == 0) {
/* Recreate intermediaryBufferView when losing reference to the underlying buffer, probably due to emscripten resizing heap. */
device.intermediaryBufferView = new Float32Array(Module.HEAPF32.buffer, device.intermediaryBuffer, device.intermediaryBufferSizeInBytes);
}
var outputSilence = false; var outputSilence = false;
/* Sanity check. This will never happen, right? */ /* Sanity check. This will never happen, right? */