Re: [AD] SF.net SVN: alleg:[11840] allegro/branches/4.9

[Thomas Fjellstrom <tfjellstrom@xxxxxxxxxx>]

On Sat March 14 2009, Thomas Fjellstrom wrote:
> On Fri March 13 2009, tjaden@xxxxxxxxxx wrote:
> > Revision: 11840
> > http://alleg.svn.sourceforge.net/alleg/?rev=11840&view=rev
> > Author: tjaden
> > Date: 2009-03-14 04:31:51 +0000 (Sat, 14 Mar 2009)
> >
> > Log Message:
> > -----------
> > Optimise _al_draw_bitmap_region_memory() by avoiding multiple function
> > calls in the inner loop. I think the bottleneck now is the conversions
> > from ints to floats. (Maybe we should be blending with fixed point
> > integers?)
> >
> > Use a lookup table for al_map_rgba(). Mark _rgb_scale_* tables as const.
> >
> > Add the simple benchmark program I used.
> >
> > Mark d3d_draw_pixel() static.
>
> Looks like something here has helped ex_prim in software mode too. Used to
> run at 4fps on my Q6600 w 4G ram and a NV 8800GTS. It now runs at 12fps
> with blending. Without blending its back up to 60fps, same as hardware \o/
>
> I call that a win. Before I couldn't tell what speed it was at without
> blending as it would blank the screen of most things... I think if its
> possible to work on blending some more, that would rock.
>
> fwiw, I get "Time = 2.88472 s, FPS = 103.996" from ex_blend_bench.

Should mention I occasionally get:
Assert failed at line 399 of /home/moose/.projects/allegro.git/src/bitmap_new.c
Aborted

from ex_prim when I switch which primitives its drawing with the arrow keys.

--
Thomas Fjellstrom
tfjellstrom@xxxxxxxxxx