Re: OpenGL in Ada

[Lucretia <Lucretia9000@yahoo.co.uk>]

On Oct 5, 10:23 pm, Yves Bailly <yves.bai...@gmail.com> wrote:

> The subprograms are not imported using "pragma Import", but rather
> declared as access to subprograms (procedures or functions). The
> access are then resolved in a lenghty "Init_GL" procedure, which
> relies on the "glGetProcAddress" function imported from SDL. So the
> generated binding requires SDL to work.

That is something that shouldn't be done here. Most of the API can be
linked to directly with pragma import, the Win32 version needs to use
a different type of import, stdcall, I think; see the GNAT manuals.

glGetProcAddress is for getting the address of subprograms from a DLL,
i.e. the GL extensions.

It would be nice to have just 1 combined effort for GL under a BSD
licence so we can get rid of the x amount of already existing
versions, I think I know of about 4-5 at the moment.

Luke.

Luke.