Re: [Tuxnes-devel] Trying to add SDL Renderer

[W. M. P. <mi...@fl...>]

> > After looking at the X11 renderer code, I concluded that the global
> > variable fb is a video frame buffer filled by tuxnes's emulator code.
> > I thought that the following pseudo code would display a NES frame:
> 
> > drawimage(PBL)
> > Memory Copy (SDLbuf, p, 240 * 256)
> > SDL Display(SDLbuf)
> 
> I'm curious--why don't you have the render draw directly into the
> SDL buffer?  Looks like you're doing double work.

Changed in accordance with your suggestion.

> Anyway, if you want an example of rendering look at the GGI renderer,
> it's probably easier to follow than X11 because the operation is similar to
> SDL (as far as I know).

Thanks.  W.c actually ended up being a very good reference.  My problem
was that I didn't understand the palette handling code.  I was not
initializing the palette prior to calling drawimage.

I now have rudimentary SDL support working in full-screen mode.  I will
finish my patch up and submit it in the near future.

In addition, I plan on using my experience writing a renderer to clean
up some of tuxnes's interfaces a bit.  There is also a lot of repeated
code in w.c, sdl.c, x11.c, and ggi.c that I would like to consolidate.
I will submit these changes as a separate patch.

-- 
Mike

:wq