/*
===========================================================================

Doom 3 BFG Edition GPL Source Code
Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.

This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").

Doom 3 BFG Edition Source Code is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Doom 3 BFG Edition Source Code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Doom 3 BFG Edition Source Code.  If not, see <http://www.gnu.org/licenses/>.

In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code.  If not, please request a copy in writing from id Software at the address below.

If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.

===========================================================================
*/

#ifndef __VR_HMD_H__
#define __VR_HMD_H__

#include "../idlib/math/Vector.h"
#include "../../../../../../../../VrApi/Include/VrApi_Types.h"

typedef enum
{
    EYE_LEFT = 0,
    EYE_RIGHT = 1,
    NUM_EYES = 2,
} vr_eye_t;

typedef struct
{
    vr_eye_t eyes[NUM_EYES];
} eye_order_t;

typedef struct
{
    float scale;
    float offset;
} scaleOffset_t;

typedef struct
{
    scaleOffset_t x;
    scaleOffset_t y;
} eyeScaleOffset_t;

typedef struct
{
    float projUp;
    float projDown;
    float projLeft;
    float projRight;
} eyeProjRaw_t;

typedef struct
{
    int x;
    int y;
} resolution_t;

typedef struct
{
    int x;
    int y;
} ovrEyeRenderDesc;

typedef struct
{
    int w;
    int h;
} ovrSizei;

typedef struct ovrFovPort_
{
    float LeftTan;
    float RightTan;
    float UpTan;
    float DownTan;
} ovrFovPort;

typedef struct _hmdEye
{

    float				projectionHmd[16];
    idVec3				viewOffset;
    eyeProjRaw_t		projectionOpenVR;
    eyeScaleOffset_t	projectionOculus;
    resolution_t		renderTargetRes;
    ovrFovPort			eyeFov;
    ovrEyeRenderDesc	eyeRenderDesc;
	ovrSizei			renderTarget;
	ovrVector2f			UVScaleoffset[2];
} hmdEye_t;

#endif