kicad-developers team mailing list archive

[Maciej Suminski <maciej.suminski@xxxxxxx>]

Hi Torsten,

On 04/23/2013 10:00 PM, "Torsten Hüter" wrote:
> I'd disagree with Lorenzo, as the originator of the GAL I'd suggest that
> you stick with the first plan, that means using display list first.
> As you have (perhaps) already seen, you can use the group methods for that:
> BeginGroup(..)
> EndGroup(..)
> DrawGroup(..)
> DeleteGroup(..)
> VBOs are a kind of optimization and I'd implement it, after everything
> else works fine. The reason is, that it requires much more code for the
> same functionality. For instance you need to keep track of the various
> objects, like triangles, triangle strips, quads and you need to organize
> the memory transfer etc. At this point I'd implement also the major
> drawing routines as shaders using the interface that I've provided. But
> I'd do that later.
> The question  for me in general is the minimum required OpenGL version,
> this is important for shader handling and other features.

Actually, as far as I can see - most of the code you have written for 
display lists is already working, so there is not much to be done. Right 
now I use it for testing of item caching, but I am going to implement 
VBOs and when it is done - push it to repository.

> Can you use the current location of the GAL for your bug fixes, this
> would be really nice, so that I and Dick for instance can commit as well:
> lp:~kicad-testing-committers/kicad/kicad-gal
> --
> I'm very busy at the moment and can't implement much, but at least I can
> give you some support.

I agree with Dick - how about working on just one branch? It is based on 
your code, so it should be easy to modify it for you and it would be 
better to maintain just one branch.
I have already added you to the team, so you should be able to commit 
your changes. Your support is very welcome, as you seem to be 
experienced with graphics programming, every hint is useful.

Kind regards,
--
Maciej Sumiński
CERN BE-CO-HT
e-mail: maciej.suminski@xxxxxxx
phone: +41 22 767 2251