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+/************************************************************************************

+ 

+ Filename    :   OSX_OculusRoomTiny.h

+ Content     :   Simplest possible first-person view test application for Oculus Rift

+ Created     :   May 7, 2013

+ Authors     :   Michael Antonov, Andrew Reisse, Artem Bolgar

+ 

+ Copyright   :   Copyright 2013 Oculus, Inc. All Rights reserved.

+ 

+ Licensed under the Apache License, Version 2.0 (the "License");

+ you may not use this file except in compliance with the License.

+ You may obtain a copy of the License at

+ 

+ http://www.apache.org/licenses/LICENSE-2.0

+ 

+ Unless required by applicable law or agreed to in writing, software

+ 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 INC_OSX_OculusRoomTiny_h

+#define INC_OSX_OculusRoomTiny_h

+

+#import <Cocoa/Cocoa.h>

+

+#import <CoreGraphics/CoreGraphics.h>

+#import <CoreGraphics/CGDirectDisplay.h>

+

+

+#include "OVR.h"

+#include "Util/Util_Render_Stereo.h"

+#include "../../LibOVR/Src/Kernel/OVR_Timer.h"

+#include "RenderTiny_GL_Device.h"

+

+using namespace OVR;

+using namespace OVR::RenderTiny;

+

+class OculusRoomTinyApp;

+

+@interface OVRApp : NSApplication

+

+@property (assign) IBOutlet NSWindow* win;

+@property (assign) OculusRoomTinyApp* App;

+

+-(void) run;

+

+@end

+

+@interface OVRView : NSOpenGLView <NSWindowDelegate>

+

+//@property (assign) OVR::Platform::OSX::PlatformCore* Platform;

+@property (assign) OculusRoomTinyApp* App;

+@property unsigned long Modifiers;

+

+-(void)ProcessMouse:(NSEvent*)event;

+-(void)warpMouseToCenter;

+

++(CGDirectDisplayID) displayFromScreen:(NSScreen*)s;

+

+@end

+

+//-------------------------------------------------------------------------------------

+// ***** OculusRoomTiny Description

+

+// This app renders a simple flat-shaded room allowing the user to move along the

+// floor and look around with an HMD, mouse, keyboard and gamepad.

+// By default, the application will start full-screen on Oculus Rift.

+//

+// The following keys work:

+//

+//  'W', 'S', 'A', 'D' - Move forward, back; strafe left/right.

+//  F1 - No stereo, no distortion.

+//  F2 - Stereo, no distortion.

+//  F3 - Stereo and distortion.

+//

+

+// The world RHS coordinate system is defines as follows (as seen in perspective view):

+//  Y - Up

+//  Z - Back

+//  X - Right

+const Vector3f UpVector(0.0f, 1.0f, 0.0f);

+const Vector3f ForwardVector(0.0f, 0.0f, -1.0f);

+const Vector3f RightVector(1.0f, 0.0f, 0.0f);

+

+// We start out looking in the positive Z (180 degree rotation).

+const float    YawInitial  = 3.141592f;

+const float    Sensitivity = 1.0f;

+const float    MoveSpeed   = 3.0f; // m/s

+

+namespace OSX

+{

+    class RenderDevice : public GL::RenderDevice

+    {

+    public:

+        void* Context; // NSOpenGLContext

+        

+        // osview = NSView*

+        RenderDevice(const RendererParams& p, void* osview, void* context);

+        

+        virtual void Shutdown();

+        virtual void Present();

+        

+        virtual bool SetFullscreen(DisplayMode fullscreen);

+        

+        // osview = NSView*

+        static RenderDevice* CreateDevice(const RendererParams& rp, void* osview);

+    };

+}

+

+//-------------------------------------------------------------------------------------

+// ***** OculusRoomTiny Application class

+

+// An instance of this class is created on application startup (main/WinMain).

+//

+// It then works as follows:

+//

+//  OnStartup   - Window, graphics and HMD setup is done here.

+//                This function will initialize OVR::DeviceManager and HMD,

+//                creating SensorDevice and attaching it to SensorFusion.

+//                This needs to be done before obtaining sensor data.

+//

+//  OnIdle      - Does per-frame processing, processing SensorFusion and

+//                movement input and rendering the frame.

+

+class OculusRoomTinyApp : public MessageHandler

+{

+    friend class OSX::RenderDevice;

+public:

+    OculusRoomTinyApp(OVRApp* nsapp);

+    ~OculusRoomTinyApp();

+    

+    // Initializes graphics, Rift input and creates world model.

+    virtual int  OnStartup(const char* args);

+    // Called per frame to sample SensorFucion and render the world.

+    virtual void OnIdle();

+    

+    // Installed for Oculus device messages. Optional.

+    virtual void OnMessage(const Message& msg);

+    

+    // Handle input events for movement.

+    virtual void OnMouseMove(int x, int y, int modifiers);

+    virtual void OnKey(unsigned vk, bool down);

+    

+    // Render the view for one eye.

+    void         Render(const StereoEyeParams& stereo);

+    

+    // Main application loop.

+    int          Run();

+    void         Exit();

+    

+    // Return amount of time passed since application started in seconds.

+    double       GetAppTime() const

+    {

+        return (OVR::Timer::GetTicks() - StartupTicks) * (1.0 / (double)OVR::Timer::MksPerSecond);

+    }

+    bool IsQuiting() const { return Quit; }

+    

+    int         GetWidth() const { return Width; }

+    int         GetHeight() const { return Height; }

+    

+    bool        SetFullscreen(const RendererParams& rp, int fullscreen);

+    

+protected:

+    bool        setupWindow();

+    void        destroyWindow();

+

+    NSView*         View;

+    NSWindow*       Win;

+    OVRApp*         NsApp;

+

+    static OculusRoomTinyApp*   pApp;

+    

+    // *** Rendering Variables

+    Ptr<OSX::RenderDevice>   pRender;

+    RendererParams      RenderParams;

+    int                 Width, Height;

+    

+    bool                Quit;

+

+    // *** Oculus HMD Variables

+    

+    Ptr<DeviceManager>  pManager;

+    Ptr<SensorDevice>   pSensor;

+    Ptr<HMDDevice>      pHMD;

+    SensorFusion        SFusion;

+    OVR::HMDInfo        HMDInfo;

+    

+    // Last update seconds, used for move speed timing.

+    double              LastUpdate;

+    OVR::UInt64         StartupTicks;

+    

+    // Position and look. The following apply:

+    Vector3f            EyePos;

+    float               EyeYaw;         // Rotation around Y, CCW positive when looking at RHS (X,Z) plane.

+    float               EyePitch;       // Pitch. If sensor is plugged in, only read from sensor.

+    float               EyeRoll;        // Roll, only accessible from Sensor.

+    float               LastSensorYaw;  // Stores previous Yaw value from to support computing delta.

+    

+    // Movement state; different bits may be set based on the state of keys.

+    UByte               MoveForward;

+    UByte               MoveBack;

+    UByte               MoveLeft;

+    UByte               MoveRight;

+    

+    Matrix4f            ViewMat;

+    RenderTiny::Scene   Scene;

+    

+    // Stereo view parameters.

+    StereoConfig        SConfig;

+    PostProcessType     PostProcess;

+    

+    // Shift accelerates movement/adjustment velocity.

+    bool                ShiftDown;

+    bool                ControlDown;

+};

+

+// Adds sample models and lights to the argument scene.

+void PopulateRoomScene(Scene* scene, RenderDevice* render);

+

+

+#endif