Review VR functionality

To be more generic and configurable

src/raylib.h

@@ -523,6 +523,20 @@ typedef struct RRESData {
 // RRES type (pointer to RRESData array)
 typedef struct RRESData *RRES;
 
+// Head-Mounted-Display device parameters
+typedef struct VrDeviceInfo {
+    int hResolution;                // HMD horizontal resolution in pixels
+    int vResolution;                // HMD vertical resolution in pixels
+    float hScreenSize;              // HMD horizontal size in meters
+    float vScreenSize;              // HMD vertical size in meters
+    float vScreenCenter;            // HMD screen center in meters
+    float eyeToScreenDistance;      // HMD distance between eye and display in meters
+    float lensSeparationDistance;   // HMD lens separation distance in meters
+    float interpupillaryDistance;   // HMD IPD (distance between pupils) in meters
+    float lensDistortionValues[4];  // HMD lens distortion constant parameters
+    float chromaAbCorrection[4];    // HMD chromatic aberration correction parameters
+} VrDeviceInfo;
+
 //----------------------------------------------------------------------------------
 // Enumerators Definition
 //----------------------------------------------------------------------------------
@@ -665,13 +679,10 @@ typedef enum {
     HMD_DEFAULT_DEVICE = 0,
     HMD_OCULUS_RIFT_DK2,
     HMD_OCULUS_RIFT_CV1,
+    HMD_OCULUS_GO,
     HMD_VALVE_HTC_VIVE,
-    HMD_SAMSUNG_GEAR_VR,
-    HMD_GOOGLE_CARDBOARD,
-    HMD_SONY_PLAYSTATION_VR,
-    HMD_RAZER_OSVR,
-    HMD_FOVE_VR,
-} VrDevice;
+    HMD_SONY_PSVR
+} VrDeviceType;
 
 // RRESData type
 typedef enum { 
@@ -1083,7 +1094,8 @@ RLAPI void BeginBlendMode(int mode);                                      // Beg
 RLAPI void EndBlendMode(void);                                            // End blending mode (reset to default: alpha blending)
 
 // VR control functions
-RLAPI void InitVrSimulator(int vrDevice);           // Init VR simulator for selected device
+VrDeviceInfo GetVrDeviceInfo(int vrDeviceType);     // Get VR device information for some standard devices
+void InitVrSimulator(VrDeviceInfo info);            // Init VR simulator for selected device parameters
 RLAPI void CloseVrSimulator(void);                  // Close VR simulator for current device
 RLAPI bool IsVrSimulatorReady(void);                // Detect if VR simulator is ready
 RLAPI void UpdateVrTracking(Camera *camera);        // Update VR tracking (position and orientation) and camera