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+/************************************************************************************
+
+Filename    :   OVR_LatencyTestImpl.h
+Content     :   Latency Tester specific implementation.
+Created     :   March 7, 2013
+Authors     :   Lee Cooper
+
+Copyright   :   Copyright 2014 Oculus VR, Inc. All Rights reserved.
+
+Licensed under the Oculus VR Rift SDK License Version 3.1 (the "License"); 
+you may not use the Oculus VR Rift SDK except in compliance with the License, 
+which is provided at the time of installation or download, or which 
+otherwise accompanies this software in either electronic or hard copy form.
+
+You may obtain a copy of the License at
+
+http://www.oculusvr.com/licenses/LICENSE-3.1 
+
+Unless required by applicable law or agreed to in writing, the Oculus VR SDK 
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+*************************************************************************************/
+
+#ifndef OVR_LatencyTestImpl_h
+#define OVR_LatencyTestImpl_h
+
+#include "OVR_HIDDeviceImpl.h"
+
+namespace OVR {
+
+struct LatencyTestSamplesMessage;
+struct LatencyTestButtonMessage;
+struct LatencyTestStartedMessage;
+struct LatencyTestColorDetectedMessage;
+
+//-------------------------------------------------------------------------------------
+// LatencyTestDeviceFactory enumerates Oculus Latency Tester devices.
+class LatencyTestDeviceFactory : public DeviceFactory
+{
+public:
+	static LatencyTestDeviceFactory &GetInstance();
+
+	// Enumerates devices, creating and destroying relevant objects in manager.
+    virtual void EnumerateDevices(EnumerateVisitor& visitor);
+
+    virtual bool MatchVendorProduct(UInt16 vendorId, UInt16 productId) const;
+    virtual bool DetectHIDDevice(DeviceManager* pdevMgr, const HIDDeviceDesc& desc);
+
+protected:
+    DeviceManager* getManager() const { return (DeviceManager*) pManager; }   
+};
+
+
+// Describes a single a Oculus Latency Tester device and supports creating its instance.
+class LatencyTestDeviceCreateDesc : public HIDDeviceCreateDesc
+{
+public:
+    LatencyTestDeviceCreateDesc(DeviceFactory* factory, const HIDDeviceDesc& hidDesc)
+        : HIDDeviceCreateDesc(factory, Device_LatencyTester, hidDesc) { }
+    
+    virtual DeviceCreateDesc* Clone() const
+    {
+        return new LatencyTestDeviceCreateDesc(*this);
+    }
+
+    virtual DeviceBase* NewDeviceInstance();
+
+    virtual MatchResult MatchDevice(const DeviceCreateDesc& other,
+                                    DeviceCreateDesc**) const
+    {
+        if ((other.Type == Device_LatencyTester) && (pFactory == other.pFactory))
+        {            
+            const LatencyTestDeviceCreateDesc& s2 = (const LatencyTestDeviceCreateDesc&) other;
+            if (MatchHIDDevice(s2.HIDDesc))
+                return Match_Found;
+        }
+        return Match_None;
+    }
+
+    virtual bool MatchHIDDevice(const HIDDeviceDesc& hidDesc) const
+    {
+        // should paths comparison be case insensitive?
+        return ((HIDDesc.Path.CompareNoCase(hidDesc.Path) == 0) &&
+                (HIDDesc.SerialNumber == hidDesc.SerialNumber));
+    }
+    virtual bool        GetDeviceInfo(DeviceInfo* info) const;
+};
+
+
+//-------------------------------------------------------------------------------------
+// ***** OVR::LatencyTestDeviceImpl
+
+// Oculus Latency Tester interface.
+
+class LatencyTestDeviceImpl : public HIDDeviceImpl<OVR::LatencyTestDevice>
+{
+public:
+     LatencyTestDeviceImpl(LatencyTestDeviceCreateDesc* createDesc);
+    ~LatencyTestDeviceImpl();
+
+    // DeviceCommon interface.
+    virtual bool Initialize(DeviceBase* parent);
+    virtual void Shutdown();
+
+    // DeviceManagerThread::Notifier interface.
+    virtual void OnInputReport(UByte* pData, UInt32 length);
+
+    // LatencyTesterDevice interface
+    virtual bool SetConfiguration(const OVR::LatencyTestConfiguration& configuration, bool waitFlag = false);
+    virtual bool GetConfiguration(OVR::LatencyTestConfiguration* configuration);
+
+    virtual bool SetCalibrate(const Color& calibrationColor, bool waitFlag = false);
+
+    virtual bool SetStartTest(const Color& targetColor, bool waitFlag = false);
+    virtual bool SetDisplay(const LatencyTestDisplay& display, bool waitFlag = false);
+
+protected:
+    bool    openDevice(const char** errorFormatString);
+    void    closeDevice();
+    void    closeDeviceOnIOError();
+
+    bool    initializeRead();
+    bool    processReadResult();
+
+    bool    setConfiguration(const OVR::LatencyTestConfiguration& configuration);
+    bool    getConfiguration(OVR::LatencyTestConfiguration* configuration);
+    bool    setCalibrate(const Color& calibrationColor);
+    bool    setStartTest(const Color& targetColor);
+    bool    setDisplay(const OVR::LatencyTestDisplay& display);
+
+    // Called for decoded messages
+    void onLatencyTestSamplesMessage(LatencyTestSamplesMessage* message);
+    void onLatencyTestButtonMessage(LatencyTestButtonMessage* message);
+    void onLatencyTestStartedMessage(LatencyTestStartedMessage* message);
+    void onLatencyTestColorDetectedMessage(LatencyTestColorDetectedMessage* message);
+
+};
+
+} // namespace OVR
+
+#endif // OVR_LatencyTestImpl_h