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kicad/include/gal/opengl/kiglew.h

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Introduce EGL backend support for the OpenGL canvas wxWidgets 3.1.5+ on Linux will compile with the Wayland EGL canvas as the backend instead of the X11 backend. This requires a version of GLEW compiled with the proper EGL defines and a different header/code for certain parts that are X11 GLEW specific. This introduces an in-tree version of GLEW that will be built with the GLEW_EGL flag then statically linked into the KiCad executables when EGL support is needed.
2020-11-10 23:24:01 +00:00
/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2020 KiCad Developers, see AUTHORS.txt for contributors.
*
* 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, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/**
* This file is used for including the proper GLEW header for the platform.
*/
#ifndef KIGLEW_H_
#define KIGLEW_H_
// Pull in the configuration options for wxWidgets
Use <wx/platform.h> instead of <wx/setup.h> On non-Unix, the platform selection is in platform.h, not on the command line using the preprocessor macros from wx-config. <wx/setup.h> relies on the platform being selected correctly, if it is included directly, it cannot determine the correct configuration with Visual Studio.
2020-11-11 23:12:21 +00:00
#include <wx/platform.h>
Introduce EGL backend support for the OpenGL canvas wxWidgets 3.1.5+ on Linux will compile with the Wayland EGL canvas as the backend instead of the X11 backend. This requires a version of GLEW compiled with the proper EGL defines and a different header/code for certain parts that are X11 GLEW specific. This introduces an in-tree version of GLEW that will be built with the GLEW_EGL flag then statically linked into the KiCad executables when EGL support is needed.
2020-11-10 23:24:01 +00:00
// Apple, in their infinite wisdom, has decided to mark OpenGL as deprecated.
// Luckily we can silence warnings about its deprecation. This is needed on the GLEW
// includes since they transitively include the OpenGL headers.
#define GL_SILENCE_DEPRECATION 1
#ifdef __WXGTK__
#ifdef KICAD_USE_EGL
#ifdef wxUSE_GLCANVAS_EGL
// wxWidgets was compiled with the EGL canvas, so use the EGL header for GLEW
#include <GL/eglew.h>
#else
#error "KICAD_USE_EGL can only be used when wxWidgets is compiled with the EGL canvas"
#endif
#else // KICAD_USE_EGL
#ifdef wxUSE_GLCANVAS_EGL
#error "KICAD_USE_EGL must be defined since wxWidgets has been compiled with the EGL canvas"
#else
// wxWidgets wasn't compiled with the EGL canvas, so use the X11 GLEW
#include <GL/glxew.h>
#endif
#endif // KICAD_USE_EGL
#else // __WXGTK__
// Non-GTK platforms only need the normal GLEW include
#include <GL/glew.h>
#endif // __WXGTK__
#endif // KIGLEW_H_