Incompatible with OpenGL >= 3.2

[linsyking]

When I set the Open GL version to 3.2, the text and images cannot be rendered.

ignore @@ Sdl.gl_set_attribute Sdl.Gl.context_profile_mask Sdl.Gl.context_profile_core;
ignore @@ Sdl.gl_set_attribute Sdl.Gl.context_major_version 3;
ignore @@ Sdl.gl_set_attribute Sdl.Gl.context_minor_version 2;