StelOpenGL.hpp

/*
 * Stellarium
 * Copyright (C) 2014 Fabien Chereau
 * Copyright (C) 2016 Florian Schaukowitsch
 *
 * 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 2
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA  02110-1335, USA.
 */

#ifndef _STELOPENGL_HPP_
#define _STELOPENGL_HPP_

#include <QOpenGLFunctions>

#ifndef QT_NO_DEBUG
# define GL(line) do { \
    /*for debugging, we make sure we use our main context*/\
    Q_ASSERT(StelOpenGL::mainContext == QOpenGLContext::currentContext());\
    line;\
    Q_ASSERT_X(!StelOpenGL::checkGLErrors(__FILE__, __LINE__), "GL macro", "OpenGL errors encountered");\
    } while(0)
#else
# define GL(line) line
#endif

namespace StelOpenGL
{
    extern QOpenGLContext* mainContext;

    const char* getGLErrorText(GLenum code);
    int checkGLErrors(const char *file, int line);
    void clearGLErrors();
}

// This is still needed for the ARM platform (armhf)

#if defined(QT_OPENGL_ES_2)
#ifndef GL_DOUBLE
#define GL_DOUBLE GL_FLOAT
#endif
#endif

#endif // _STELOPENGL_HPP_