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, 4 insertions, 0 deletions

diff --git a/src/utils/sdl2helper.h b/src/utils/sdl2helper.h
index 9f625ee84..6f59b27a6 100644
--- a/src/utils/sdl2helper.h
+++ b/src/utils/sdl2helper.h
@@ -51,6 +51,10 @@ namespace SDL
     SDL_Thread *createThread(SDL_ThreadFunction fn,
                              const char *restrict const name,
                              void *restrict const data);
+
+    void *createGLContext(SDL_Window *const window,
+                          const int major,
+                          const int minor);
 }  // namespace SDL
 
 #endif  // USE_SDL2