Add manual OpenGL context creation.

For SDL2 set attributes for context version.
For SDL1.2 in X11 create own context.
For SDL1.2 and other platforms not implimented for now.

Also try fallback if need to older context versions.

1 files changed, 41 insertions, 0 deletions

diff --git a/src/utils/glxhelper.h b/src/utils/glxhelper.h
new file mode 100644
index 000000000..0378256d0
--- /dev/null
+++ b/src/utils/glxhelper.h
@@ -0,0 +1,41 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2014  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  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
+ *  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/>.
+ */
+
+#ifndef UTILS_GLXHELPER_H
+#define UTILS_GLXHELPER_H
+
+#include "main.h"
+
+#if defined(USE_OPENGL) && defined(USE_X11)
+
+#include "localconsts.h"
+
+//struct Display;
+
+namespace GlxHelper
+{
+    void *createContext(unsigned int window,
+                        void *const display,
+                        const int major,
+                        const int minor);
+}  // namespace Glx
+
+#endif  // defined(USE_OPENGL) && defined(USE_X11)
+#endif  // UTILS_GLXHELPER_H