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Notify source connect, disconnect, and video mode changes.

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This commit is contained in:
Peter Johnson
2016-11-18 09:20:52 -08:00
parent 8e9911d330
commit c6b527d452
3 changed files with 41 additions and 6 deletions
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14
src/CvSourceImpl.cpp
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@@ -104,7 +104,13 @@ void CvSourceImpl::NotifyError(llvm::StringRef msg) {
PutError(msg, wpi::Now());
}
void CvSourceImpl::SetConnected(bool connected) { m_connected = connected; }
void CvSourceImpl::SetConnected(bool connected) {
bool was_connected = m_connected.exchange(connected);
if (was_connected && !connected)
Notifier::GetInstance().NotifySource(*this, CS_SOURCE_DISCONNECTED);
else if (!was_connected && connected)
Notifier::GetInstance().NotifySource(*this, CS_SOURCE_CONNECTED);
}
CS_Property CvSourceImpl::CreateProperty(llvm::StringRef name,
CS_PropertyKind kind, int minimum,
@@ -160,6 +166,12 @@ CS_Source CreateCvSource(llvm::StringRef name, const VideoMode& mode,
auto source = std::make_shared<CvSourceImpl>(name, mode);
auto handle = Sources::GetInstance().Allocate(CS_SOURCE_CV, source);
Notifier::GetInstance().NotifySource(name, handle, CS_SOURCE_CREATED);
// Generate initial events here so they come after the source created event
Notifier::GetInstance().NotifySource(name, handle, CS_SOURCE_CONNECTED);
Notifier::GetInstance().NotifySource(name, handle,
CS_SOURCE_VIDEOMODES_UPDATED);
Notifier::GetInstance().NotifySource(name, handle,
CS_SOURCE_VIDEOMODE_CHANGED);
return handle;
}