/*
    Scan Tailor - Interactive post-processing tool for scanned pages.
    Copyright (C)  Joseph Artsimovich <joseph_a@mail.ru>

    This program 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.

    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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "OpenGLSupport.h"
#include "config.h"
#include "settings/ini_keys.h"
#ifdef ENABLE_OPENGL
#include <QGLFormat>
#include <QGLWidget>
#endif

bool
OpenGLSupport::supported()
{
#ifndef ENABLE_OPENGL
    return false;
#else
    if (!QGLFormat::hasOpenGL()) {
        return false;
    }

    QGLFormat format;
    format.setSampleBuffers(true);
    format.setStencil(true);
    format.setAlpha(true);

    QGLWidget widget(format);
    format = widget.format();

    if (!format.sampleBuffers()) {
        return false;
    }
    if (!format.stencil()) {
        return false;
    }
    if (!format.alpha()) {
        return false;
    }

    return true;
#endif
}
