SDK 0.2.3

1 files changed, 111 insertions, 0 deletions

diff --git a/LibOVR/Src/OVR_Linux_DeviceManager.h b/LibOVR/Src/OVR_Linux_DeviceManager.h
new file mode 100644
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+++ b/LibOVR/Src/OVR_Linux_DeviceManager.h
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+/************************************************************************************
+
+Filename    :   OVR_Linux_DeviceManager.h
+Content     :   Linux-specific DeviceManager header.
+Created     :   
+Authors     :   
+
+Copyright   :   Copyright 2012 Oculus VR, Inc. All Rights reserved.
+
+Use of this software is subject to the terms of the Oculus license
+agreement provided at the time of installation or download, or which
+otherwise accompanies this software in either electronic or hard copy form.
+
+*************************************************************************************/
+
+#ifndef OVR_Linux_DeviceManager_h
+#define OVR_Linux_DeviceManager_h
+
+#include "OVR_DeviceImpl.h"
+
+#include <unistd.h>
+#include <sys/poll.h>
+
+
+namespace OVR { namespace Linux {
+
+class DeviceManagerThread;
+
+//-------------------------------------------------------------------------------------
+// ***** Linux DeviceManager
+
+class DeviceManager : public DeviceManagerImpl
+{
+public:
+    DeviceManager();
+    ~DeviceManager();
+
+    // Initialize/Shutdowncreate and shutdown manger thread.
+    virtual bool Initialize(DeviceBase* parent);
+    virtual void Shutdown();
+
+    virtual ThreadCommandQueue* GetThreadQueue();
+    virtual ThreadId GetThreadId() const;
+
+    virtual DeviceEnumerator<> EnumerateDevicesEx(const DeviceEnumerationArgs& args);    
+
+    virtual bool  GetDeviceInfo(DeviceInfo* info) const;
+
+    Ptr<DeviceManagerThread> pThread;
+};
+
+//-------------------------------------------------------------------------------------
+// ***** Device Manager Background Thread
+
+class DeviceManagerThread : public Thread, public ThreadCommandQueue
+{
+    friend class DeviceManager;
+    enum { ThreadStackSize = 64 * 1024 };
+public:
+    DeviceManagerThread();
+    ~DeviceManagerThread();
+
+    virtual int Run();
+
+    // ThreadCommandQueue notifications for CommandEvent handling.
+    virtual void OnPushNonEmpty_Locked() { write(CommandFd[1], this, 1); }
+    virtual void OnPopEmpty_Locked()     { }
+
+    class Notifier
+    {
+    public:
+        // Called when I/O is received
+        virtual void OnEvent(int i, int fd) = 0;
+
+        // Called when timing ticks are updated.
+        // Returns the largest number of microseconds this function can
+        // wait till next call.
+        virtual UInt64  OnTicks(UInt64 ticksMks)
+        {
+            OVR_UNUSED1(ticksMks);
+            return Timer::MksPerSecond * 1000;
+        }
+    };
+
+    // Add I/O notifier
+    bool AddSelectFd(Notifier* notify, int fd);
+    bool RemoveSelectFd(Notifier* notify, int fd);
+
+    // Add notifier that will be called at regular intervals.
+    bool AddTicksNotifier(Notifier* notify);
+    bool RemoveTicksNotifier(Notifier* notify);
+
+private:
+    
+    bool threadInitialized() { return CommandFd[0] != 0; }
+
+    // pipe used to signal commands
+    int CommandFd[2];
+
+    Array<struct pollfd>    PollFds;
+    Array<Notifier*>        FdNotifiers;
+
+    Event                   StartupEvent;
+
+    // Ticks notifiers - used for time-dependent events such as keep-alive.
+    Array<Notifier*>        TicksNotifiers;
+};
+
+}} // namespace Linux::OVR
+
+#endif // OVR_Linux_DeviceManager_h