mirror of
https://github.com/ZDoom/qzdoom.git
synced 2024-12-18 16:31:50 +00:00
68 lines
2.6 KiB
C++
68 lines
2.6 KiB
C++
|
/*
|
||
|
|
** gl_quadstereo.cpp
|
||
|
|
** Quad-buffered OpenGL stereoscopic 3D mode for GZDoom
|
||
|
|
**
|
||
|
|
**---------------------------------------------------------------------------
|
||
|
|
** Copyright 2015 Christopher Bruns
|
||
|
|
** All rights reserved.
|
||
|
|
**
|
||
|
|
** Redistribution and use in source and binary forms, with or without
|
||
|
|
** modification, are permitted provided that the following conditions
|
||
|
|
** are met:
|
||
|
|
**
|
||
|
|
** 1. Redistributions of source code must retain the above copyright
|
||
|
|
** notice, this list of conditions and the following disclaimer.
|
||
|
|
** 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
** notice, this list of conditions and the following disclaimer in the
|
||
|
|
** documentation and/or other materials provided with the distribution.
|
||
|
|
** 3. The name of the author may not be used to endorse or promote products
|
||
|
|
** derived from this software without specific prior written permission.
|
||
|
|
**
|
||
|
|
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||
|
|
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||
|
|
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||
|
|
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||
|
|
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||
|
|
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||
|
|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||
|
|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||
|
|
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
**---------------------------------------------------------------------------
|
||
|
|
**
|
||
|
|
**
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "gl_quadstereo.h"
|
||
|
|
|
||
|
|
namespace s3d {
|
||
|
|
|
||
|
|
QuadStereo::QuadStereo(double ipdMeters)
|
||
|
|
: leftEye(ipdMeters), rightEye(ipdMeters)
|
||
|
|
{
|
||
|
|
// Check whether quad-buffered stereo is supported in the current context
|
||
|
|
// We are assuming the OpenGL context is already current at this point,
|
||
|
|
// i.e. this constructor is called "just in time".
|
||
|
|
GLboolean supportsStereo, supportsBuffered;
|
||
|
|
glGetBooleanv(GL_STEREO, &supportsStereo);
|
||
|
|
glGetBooleanv(GL_DOUBLEBUFFER, &supportsBuffered);
|
||
|
|
bool bQuadStereoSupported = supportsStereo && supportsBuffered;
|
||
|
|
leftEye.bQuadStereoSupported = bQuadStereoSupported;
|
||
|
|
rightEye.bQuadStereoSupported = bQuadStereoSupported;
|
||
|
|
|
||
|
|
eye_ptrs.Push(&leftEye);
|
||
|
|
// If stereo is not supported, just draw scene once (left eye view only)
|
||
|
|
if (bQuadStereoSupported) {
|
||
|
|
eye_ptrs.Push(&rightEye);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* static */
|
||
|
|
const QuadStereo& QuadStereo::getInstance(float ipd)
|
||
|
|
{
|
||
|
|
static QuadStereo instance(ipd);
|
||
|
|
return instance;
|
||
|
|
}
|
||
|
|
|
||
|
|
} /* namespace s3d */
|