On Wednesday 21 March 2007 18:18:41 you wrote: > On 3/21/07, Cedric BAIL <[EMAIL PROTECTED]> wrote: > > Hi everybody, > > > > I finally got a SDL Engine running and starting to look correct. > > I did split it in 3 patch. > > > > - evas_cache_image.diff: Add a global cache for image mechanism. > > I hope it could be shared with other engine and reduce their code > > complexity. This cache works more like the one from FreeType, you request > > image/operation from the cache, and the cache forwards it if needed to > > the right callback function. This need to be carefully reviewed, even if > > it seems correct. I also included in this patch a new > > 'evas_common_load_image_module_from_file' function that just create the > > RGBA_Image without any cache manipulation. I also updated > > 'evas_common_load_image_from_file' function to use it. > > > > - evas_sdl_engine.diff: This patch really provides the SDL engine. > > You must not expect other colorspace than > > EVAS_COLORSPACE_ARGB8888 to work. I have no plan to fix this now as I > > think it will be easier to test that with emotion. So I first need an > > Ecore_SDL to fix this. > > It doesn't use evas_pipe (and never will) as it need to use SDL > > thread to do that same task, and I am really not planing to do it soon. > > > > - evas_sdl_test.diff: Add an old style evas test for SDL engine. > > Every test must work, if not please report bugs to me :) > > Great to see it happen. > > I'm about to write an engine to carry operations in 16bpp and had > already noticed this code duplication, so this helps me a bit :-)
Great to see this could help others. > My idea is similar to SDL_ConvertSurface(), however I plan to handle > alpha transparency too... we do it with Canola/SDL and performance is > incredible faster[*] than 32bpp->16bpp at every blit. > My aim is to have a pure-x11 engine, fixed for 16bpp, avoiding > overheads. However, with your engine at hand it should be much easier > to evaluate how well it work. Do you plan to add this bit-depth > support for it? Well my TODO is quite huge at the moment, and I first want to have it integrated with ecore and emotion able to run with this engine. So I must admit that such optimization are really low priority on my list even if I like the idea, but if you have time to add this, it will be great. > [*] http://lists.libsdl.org/pipermail/sdl-libsdl.org/2001-April/016483.html > Blit565to565SurfaceAlpha(): If you opt to drop quality in favor of > performance, you can pack r5g6b5 inside one 32bits word and use > 5bit-Alpha, doing add or multiply of 3 channels with one operation. Interesting patch, I like the idea, sad I don't have all the time I need :) Cedric ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
