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https://github.com/juce-framework/JUCE.git
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VST3 Host: Supply an IRunLoop from the host context
This commit is contained in:
reuk
parent
ebc91a7e22
commit
01cacf2958
1 changed files with 166 additions and 139 deletions
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@ -408,6 +408,152 @@ static void toProcessContext (Vst::ProcessContext& context,
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}
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}
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//==============================================================================
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#if JUCE_LINUX || JUCE_BSD
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class RunLoop : public Linux::IRunLoop
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{
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public:
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RunLoop() = default;
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//==============================================================================
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tresult PLUGIN_API registerEventHandler (Linux::IEventHandler* handler,
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Linux::FileDescriptor fd) override
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{
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return impl->registerEventHandler (handler, fd);
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}
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tresult PLUGIN_API unregisterEventHandler (Linux::IEventHandler* handler) override
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{
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return impl->unregisterEventHandler (handler);
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}
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//==============================================================================
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tresult PLUGIN_API registerTimer (Linux::ITimerHandler* handler, Linux::TimerInterval milliseconds) override
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{
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return impl->registerTimer (handler, milliseconds);
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}
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tresult PLUGIN_API unregisterTimer (Linux::ITimerHandler* handler) override
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{
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return impl->unregisterTimer (handler);
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}
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private:
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//==============================================================================
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struct TimerCaller final : private Timer
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{
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TimerCaller (Linux::ITimerHandler* h, int interval) : handler (h) { startTimer (interval); }
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~TimerCaller() override { stopTimer(); }
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void timerCallback() override { handler->onTimer(); }
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bool operator== (Linux::ITimerHandler* other) const noexcept { return handler == other; }
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Linux::ITimerHandler* handler = nullptr;
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};
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class Impl
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{
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public:
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~Impl()
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{
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for (const auto& h : eventHandlerMap)
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LinuxEventLoop::unregisterFdCallback (h.first);
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}
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//==============================================================================
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tresult registerEventHandler (Linux::IEventHandler* handler, Linux::FileDescriptor fd)
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{
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if (handler == nullptr)
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return kInvalidArgument;
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auto& handlers = eventHandlerMap[fd];
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if (handlers.empty())
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{
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LinuxEventLoop::registerFdCallback (fd, [this] (int descriptor)
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{
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for (auto* h : eventHandlerMap[descriptor])
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h->onFDIsSet (descriptor);
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return true;
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});
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}
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handlers.push_back (handler);
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return kResultTrue;
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}
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tresult unregisterEventHandler (Linux::IEventHandler* handler)
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{
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if (handler == nullptr)
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return kInvalidArgument;
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for (auto iter = eventHandlerMap.begin(), end = eventHandlerMap.end(); iter != end;)
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{
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auto& handlers = iter->second;
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auto handlersIter = std::find (std::begin (handlers), std::end (handlers), handler);
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if (handlersIter != std::end (handlers))
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{
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handlers.erase (handlersIter);
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if (handlers.empty())
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{
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LinuxEventLoop::unregisterFdCallback (iter->first);
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iter = eventHandlerMap.erase (iter);
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continue;
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}
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}
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++iter;
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}
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return kResultTrue;
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}
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//==============================================================================
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tresult registerTimer (Linux::ITimerHandler* handler, Linux::TimerInterval milliseconds)
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{
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if (handler == nullptr || milliseconds <= 0)
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return kInvalidArgument;
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timerCallers.emplace_back (handler, (int) milliseconds);
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return kResultTrue;
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}
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tresult unregisterTimer (Linux::ITimerHandler* handler)
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{
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auto iter = std::find (timerCallers.begin(), timerCallers.end(), handler);
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if (iter == timerCallers.end())
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return kInvalidArgument;
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timerCallers.erase (iter);
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return kResultTrue;
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}
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private:
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std::unordered_map<Linux::FileDescriptor, std::vector<Linux::IEventHandler*>> eventHandlerMap;
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std::list<TimerCaller> timerCallers;
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};
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SharedResourcePointer<Impl> impl;
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//==============================================================================
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JUCE_DECLARE_NON_MOVEABLE (RunLoop)
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (RunLoop)
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};
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#else
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class RunLoop {};
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#endif
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//==============================================================================
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class VST3PluginInstance;
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@ -417,6 +563,7 @@ struct VST3HostContext final : public Vst::IComponentHandler, // From VST V3.0.
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public Vst::IContextMenuTarget,
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public Vst::IHostApplication,
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public Vst::IUnitHandler,
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public RunLoop,
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private ComponentRestarter::Listener
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{
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VST3HostContext()
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@ -640,6 +787,9 @@ struct VST3HostContext final : public Vst::IComponentHandler, // From VST V3.0.
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UniqueBase<Vst::IContextMenuTarget>{},
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UniqueBase<Vst::IHostApplication>{},
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UniqueBase<Vst::IUnitHandler>{},
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#if JUCE_LINUX || JUCE_BSD
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UniqueBase<Linux::IRunLoop>{},
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#endif
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SharedBase<FUnknown, Vst::IComponentHandler>{}).extract (obj);
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}
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@ -1229,123 +1379,6 @@ private:
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JUCE_IMPLEMENT_SINGLETON (DLLHandleCache)
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//==============================================================================
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#if JUCE_LINUX || JUCE_BSD
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class RunLoop final : public Steinberg::Linux::IRunLoop
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{
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public:
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RunLoop() = default;
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~RunLoop()
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{
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for (const auto& h : eventHandlerMap)
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LinuxEventLoop::unregisterFdCallback (h.first);
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}
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//==============================================================================
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tresult PLUGIN_API registerEventHandler (Linux::IEventHandler* handler,
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Linux::FileDescriptor fd) override
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{
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if (handler == nullptr)
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return kInvalidArgument;
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auto& handlers = eventHandlerMap[fd];
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if (handlers.empty())
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{
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LinuxEventLoop::registerFdCallback (fd, [this] (int descriptor)
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{
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for (auto* h : eventHandlerMap[descriptor])
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h->onFDIsSet (descriptor);
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return true;
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});
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}
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handlers.push_back (handler);
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return kResultTrue;
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}
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tresult PLUGIN_API unregisterEventHandler (Linux::IEventHandler* handler) override
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{
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if (handler == nullptr)
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return kInvalidArgument;
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for (auto iter = eventHandlerMap.begin(), end = eventHandlerMap.end(); iter != end;)
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{
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auto& handlers = iter->second;
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auto handlersIter = std::find (std::begin (handlers), std::end (handlers), handler);
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if (handlersIter != std::end (handlers))
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{
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handlers.erase (handlersIter);
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if (handlers.empty())
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{
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LinuxEventLoop::unregisterFdCallback (iter->first);
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iter = eventHandlerMap.erase (iter);
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continue;
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}
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}
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++iter;
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}
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return kResultTrue;
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}
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//==============================================================================
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tresult PLUGIN_API registerTimer (Linux::ITimerHandler* handler, Linux::TimerInterval milliseconds) override
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{
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if (handler == nullptr || milliseconds <= 0)
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return kInvalidArgument;
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timerCallers.emplace_back (handler, (int) milliseconds);
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return kResultTrue;
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}
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tresult PLUGIN_API unregisterTimer (Linux::ITimerHandler* handler) override
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{
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auto iter = std::find (timerCallers.begin(), timerCallers.end(), handler);
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if (iter == timerCallers.end())
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return kInvalidArgument;
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timerCallers.erase (iter);
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return kResultTrue;
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}
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//==============================================================================
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uint32 PLUGIN_API addRef() override { return 1000; }
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uint32 PLUGIN_API release() override { return 1000; }
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tresult PLUGIN_API queryInterface (const TUID, void**) override { return kNoInterface; }
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private:
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//==============================================================================
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struct TimerCaller final : private Timer
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{
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TimerCaller (Linux::ITimerHandler* h, int interval) : handler (h) { startTimer (interval); }
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~TimerCaller() override { stopTimer(); }
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void timerCallback() override { handler->onTimer(); }
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bool operator== (Linux::ITimerHandler* other) const noexcept { return handler == other; }
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Linux::ITimerHandler* handler = nullptr;
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};
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std::unordered_map<Linux::FileDescriptor, std::vector<Linux::IEventHandler*>> eventHandlerMap;
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std::list<TimerCaller> timerCallers;
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//==============================================================================
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JUCE_DECLARE_NON_MOVEABLE (RunLoop)
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (RunLoop)
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};
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#endif
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//==============================================================================
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struct VST3ModuleHandle final : public ReferenceCountedObject
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{
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@ -1508,9 +1541,10 @@ static std::shared_ptr<const ARA::ARAFactory> getARAFactory (VST3ModuleHandle& m
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//==============================================================================
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struct VST3PluginWindow final : public AudioProcessorEditor,
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public RunLoop,
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public IPlugFrame,
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private ComponentMovementWatcher,
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private ComponentBoundsConstrainer,
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private IPlugFrame
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private ComponentBoundsConstrainer
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{
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VST3PluginWindow (AudioPluginInstance* owner, VSTComSmartPtr<IPlugView> pluginView)
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: AudioProcessorEditor (owner),
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@ -1557,23 +1591,15 @@ struct VST3PluginWindow final : public AudioProcessorEditor,
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view = nullptr;
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}
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tresult PLUGIN_API queryInterface (const TUID queryIid, void** obj) override
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{
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return testForMultiple (*this,
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queryIid,
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#if JUCE_LINUX || JUCE_BSD
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Steinberg::tresult PLUGIN_API queryInterface (const Steinberg::TUID queryIid, void** obj) override
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{
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if (doUIDsMatch (queryIid, Steinberg::Linux::IRunLoop::iid))
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{
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*obj = &runLoop.get();
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return kResultTrue;
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}
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jassertfalse;
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*obj = nullptr;
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return Steinberg::kNotImplemented;
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}
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#else
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JUCE_DECLARE_VST3_COM_QUERY_METHODS
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UniqueBase<Linux::IRunLoop>{},
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#endif
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UniqueBase<IPlugFrame>{}).extract (obj);
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}
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JUCE_DECLARE_VST3_COM_REF_METHODS
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@ -1842,7 +1868,6 @@ private:
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NSViewComponentWithParent embeddedComponent;
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using HandleFormat = NSView*;
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#elif JUCE_LINUX || JUCE_BSD
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SharedResourcePointer<RunLoop> runLoop;
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XEmbedComponent embeddedComponent { true, false };
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using HandleFormat = Window;
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#else
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@ -2052,6 +2077,12 @@ struct VST3ComponentHolder
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factory = addVSTComSmartPtrOwner (module->getPluginFactory());
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VSTComSmartPtr<IPluginFactory3> pf3;
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pf3.loadFrom (factory.get());
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if (pf3 != nullptr)
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pf3->setHostContext (host->getFUnknown());
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int classIdx;
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if ((classIdx = getClassIndex (module->getName())) < 0)
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return false;
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@ -3228,10 +3259,6 @@ private:
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}
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//==============================================================================
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#if JUCE_LINUX || JUCE_BSD
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SharedResourcePointer<RunLoop> runLoop;
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#endif
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std::unique_ptr<VST3ComponentHolder> holder;
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friend VST3HostContext;
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