Re: [AD] GLSL #version

Maybe al_attach_shader_source could append to the existing source. So this would be valid:

al_attach_shader_source("#version 110");
al_attach_shader_source(shader_source);

On Jan 8, 2014 9:04 PM, "Trent Gamblin" <nooskewl@xxxxxxxxxx> wrote:

I think I'd prefer that over a "magic main" type macro, but that's just my
vote.

Thanks,
Trent

-----Original Message-----
From: SiegeLord [mailto:slabode@xxxxxxxxxx]
Sent: January 8, 2014 12:25 PM
To: alleg-developers@xxxxxxxxxx
Subject: Re: [AD] GLSL #version

On 01/08/2014 02:06 PM, Trent Gamblin wrote:
> al_attach_glsl_shader_source_file(filename, version) or similar.
>
> Thanks,
> Trent

This is essentially the solution used with OpenGL. It'd look something
like this:

al_attach_shader_source_file(ALLEGRO_SHADER *shader, ALLEGRO_SHADER_TYPE
type, const char *prefix, const char *filename);

I suppose that is one solution.

I looked briefly into auto-detecting the GLSL version at runtime and
just sticking it in if it wasn't there already, but the way you'd do it
requires parsing compiler-dependent strings which is too brittle, I think.

-SL

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