gzdoom-gles/src/gl/stereo3d/gl_stereo_leftright.h

103 lines
2.6 KiB
C++

//
//---------------------------------------------------------------------------
//
// Copyright(C) 2015 Christopher Bruns
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see http://www.gnu.org/licenses/
//
//--------------------------------------------------------------------------
//
/*
** gl_stereo_leftright.h
** Offsets for left and right eye views
**
*/
#ifndef GL_STEREO_LEFTRIGHT_H_
#define GL_STEREO_LEFTRIGHT_H_
#include "gl_stereo3d.h"
namespace s3d {
class ShiftedEyePose : public EyePose
{
public:
ShiftedEyePose(float shift) : shift(shift) {};
float getShift() const;
virtual VSMatrix GetProjection(float fov, float aspectRatio, float fovRatio) const;
virtual void GetViewShift(float yaw, float outViewShift[3]) const;
protected:
void setShift(float shift) { this->shift = shift; }
private:
float shift;
};
class LeftEyePose : public ShiftedEyePose
{
public:
LeftEyePose(float ipd) : ShiftedEyePose( float(-0.5) * ipd) {}
float getIpd() const { return float(fabs(2.0f*getShift())); }
void setIpd(float ipd) { setShift(float(-0.5)*ipd); }
};
class RightEyePose : public ShiftedEyePose
{
public:
RightEyePose(float ipd) : ShiftedEyePose(float(+0.5)*ipd) {}
float getIpd() const { return float(fabs(2.0f*getShift())); }
void setIpd(float ipd) { setShift(float(+0.5)*ipd); }
};
/**
* As if viewed through the left eye only
*/
class LeftEyeView : public Stereo3DMode
{
public:
static const LeftEyeView& getInstance(float ipd);
LeftEyeView(float ipd) : eye(ipd) { eye_ptrs.Push(&eye); }
float getIpd() const { return eye.getIpd(); }
void setIpd(float ipd) { eye.setIpd(ipd); }
void Present() const override;
protected:
LeftEyePose eye;
};
class RightEyeView : public Stereo3DMode
{
public:
static const RightEyeView& getInstance(float ipd);
RightEyeView(float ipd) : eye(ipd) { eye_ptrs.Push(&eye); }
float getIpd() const { return eye.getIpd(); }
void setIpd(float ipd) { eye.setIpd(ipd); }
void Present() const override;
protected:
RightEyePose eye;
};
} /* namespace s3d */
#endif /* GL_STEREO_LEFTRIGHT_H_ */