Adding ViroKit. Needs AWSCore :(

mobile/ios/ViroKit.framework/Headers/VROCamera.h

@@ -0,0 +1,158 @@
+//
+//  VROCamera.h
+//  ViroRenderer
+//
+//  Created by Raj Advani on 11/13/15.
+//  Copyright © 2015 Viro Media. All rights reserved.
+//
+
+#ifndef VROCamera_h
+#define VROCamera_h
+
+#include "VROVector3f.h"
+#include "VROQuaternion.h"
+#include "VROMatrix4f.h"
+#include "VROViewport.h"
+#include "VROFrustum.h"
+#include "VROFieldOfView.h"
+
+enum class VROCameraRotationType {
+    Standard,
+    Orbit
+};
+
+/*
+ The default forward and up vectors. These are rotated by the base and head
+ rotation to derive the actual forward and up vectors.
+ */
+static const VROVector3f kBaseForward = { 0, 0, -1 };
+static const VROVector3f kBaseUp = { 0, 1, 0 };
+
+class VROCamera {
+    
+public:
+    
+    VROCamera();
+    virtual ~VROCamera();
+    
+    void setPosition(VROVector3f position);
+    void setHeadRotation(VROMatrix4f headRotation);
+    void setBaseRotation(VROMatrix4f baseRotation);
+    void setViewport(VROViewport viewport);
+    void setFOV(VROFieldOfView fov);
+    void setProjection(VROMatrix4f projection);
+    
+    VROVector3f getPosition() const {
+        return _position;
+    }
+    VROVector3f getForward() const {
+        return _forward;
+    }
+    VROVector3f getUp() const {
+        return _up;
+    }
+    VROQuaternion getRotation() const {
+        return _rotation;
+    }
+    VROMatrix4f getLookAtMatrix() const {
+        return _lookAtMatrix;
+    }
+    VROMatrix4f getProjection() const {
+        return _projection;
+    }
+    const VROFrustum &getFrustum() const {
+        return _frustum;
+    }
+    VROFieldOfView getFieldOfView() const {
+        return _fov;
+    }
+    VROViewport getViewport() const {
+        return _viewport;
+    }
+    float getNCP() const {
+        return _ncp;
+    }
+    float getFCP() const {
+        return _fcp;
+    }
+    void computeLookAtMatrix();
+    void computeFrustum();
+    
+    float getWorldPerScreen(float distance) const;
+private:
+    
+    VROVector3f _position;
+    
+    /*
+     The camera forward vector. Normalized vector indicating where the camera
+     is pointing.
+     */
+    VROVector3f _forward;
+    
+    /*
+     The camera up vector. Normalized vector indicating which direction is 'up'.
+     */
+    VROVector3f _up;
+    
+    /*
+     The camera quaternion represents the rotation from (0, 0, -1) required to
+     achieve the camera's current orientation. This factors in both base 
+     rotation and head rotation.
+     */
+    VROQuaternion _rotation;
+    
+    /*
+     The current head rotation. Head rotation is set by the user's HMD orientation.
+     Total rotation is head rotation plus base rotation.
+     */
+    VROMatrix4f _headRotation;
+    
+    /*
+     The base rotation. This is set by the application. Total rotation is head
+     rotation plus base rotation.
+     */
+    VROMatrix4f _baseRotation;
+
+    /*
+     The last computed lookAt matrix for this camera. This matrix combines all rotation
+     and position information into one unified view matrix. Note like all matrices in
+     the VROCamera, this is eye-independent (the eyeFromHeadMatrix is not considered).
+     */
+    VROMatrix4f _lookAtMatrix;
+    
+    /*
+     The projection matrix associated with this camera.
+     */
+    VROMatrix4f _projection;
+    
+    /*
+     The frustum associated with this camera. Derived from the lookAtMatrix and the
+     projection matrix.
+     */
+    VROFrustum _frustum;
+    
+    /*
+     The current viewport and FOV.
+     */
+    VROViewport _viewport;
+    VROFieldOfView _fov;
+
+    /*
+     The camera's near and far clipping planes.
+     */
+    float _ncp, _fcp;
+    
+    void onRotationChanged();
+    
+};
+
+class VROCameraDelegate {
+public:
+    VROCameraDelegate() {};
+    virtual ~VROCameraDelegate() {};
+    virtual void onCameraTransformationUpdate(VROVector3f pos,
+                                              VROVector3f rot,
+                                              VROVector3f forward) = 0;
+};
+
+#endif /* VROCamera_h */