void
AudioNode::Disconnect(AudioNode& aDestination, uint32_t aOutput, uint32_t aInput, ErrorResult& aRv)
{
if (aOutput >= NumberOfOutputs()) {
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return;
}
if (aInput >= aDestination.NumberOfInputs()) {
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return;
}
bool wasConnected = false;
for (int32_t outputIndex = mOutputNodes.Length() - 1; outputIndex >= 0; --outputIndex) {
for (int32_t inputIndex = aDestination.mInputNodes.Length() - 1; inputIndex >= 0; --inputIndex) {
InputNode& input = aDestination.mInputNodes[inputIndex];
if (input.mOutputPort == aOutput && input.mInputPort == aInput) {
wasConnected |= DisconnectFromOutputIfConnected(aDestination, outputIndex, inputIndex);
break;
}
}
}
if (!wasConnected) {
aRv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
return;
}
// This disconnection may have disconnected a panner and a source.
Context()->UpdatePannerSource();
}
void
AudioNode::Connect(AudioNode& aDestination, uint32_t aOutput,
uint32_t aInput, ErrorResult& aRv)
{
if (aOutput >= NumberOfOutputs() ||
aInput >= aDestination.NumberOfInputs()) {
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return;
}
if (Context() != aDestination.Context()) {
aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
return;
}
if (FindIndexOfNodeWithPorts(aDestination.mInputNodes, this, aInput, aOutput) !=
nsTArray<AudioNode::InputNode>::NoIndex) {
// connection already exists.
return;
}
// The MediaStreamGraph will handle cycle detection. We don't need to do it
// here.
mOutputNodes.AppendElement(&aDestination);
InputNode* input = aDestination.mInputNodes.AppendElement();
input->mInputNode = this;
input->mInputPort = aInput;
input->mOutputPort = aOutput;
AudioNodeStream* destinationStream = aDestination.mStream;
if (mStream && destinationStream) {
// Connect streams in the MediaStreamGraph
MOZ_ASSERT(aInput <= UINT16_MAX, "Unexpected large input port number");
MOZ_ASSERT(aOutput <= UINT16_MAX, "Unexpected large output port number");
input->mStreamPort = destinationStream->
AllocateInputPort(mStream, AudioNodeStream::AUDIO_TRACK,
static_cast<uint16_t>(aInput),
static_cast<uint16_t>(aOutput));
}
aDestination.NotifyInputsChanged();
// This connection may have connected a panner and a source.
Context()->UpdatePannerSource();
}
void
AudioNode::Disconnect(AudioNode& aDestination,
uint32_t aOutput,
uint32_t aInput,
ErrorResult& aRv)
{
if (aOutput >= NumberOfOutputs()) {
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return;
}
if (aInput >= aDestination.NumberOfInputs()) {
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return;
}
bool wasConnected = false;
for (int32_t outputIndex = mOutputNodes.Length() - 1;
outputIndex >= 0; --outputIndex) {
if (mOutputNodes[outputIndex] != &aDestination) {
continue;
}
wasConnected |=
DisconnectMatchingDestinationInputs<AudioNode>(
outputIndex,
[aOutput, aInput](const InputNode& aInputNode) {
return aInputNode.mOutputPort == aOutput &&
aInputNode.mInputPort == aInput;
});
}
if (!wasConnected) {
aRv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
return;
}
// This disconnection may have disconnected a panner and a source.
Context()->UpdatePannerSource();
}
