Hi Christoph You find that the application runs faster in full screen mode. There are also different kinds of SDL surfaces you can try.
SDL_HWACCEL and SDL_HWSURFACE for example. If that doesn't help you can rewrite using OpenGL to draw your tiles, and that should be quicker as long as your opengl driver is hardware accelerated. I seem to remember that you should use cl-opengl along with lispbuilder to do opengl stuff. A search for 2d spites open gl brings up lots of reference material. Justinhj 2009/3/23 Christoph Senjak <christoph.sen...@web.de>: > Hello everyone. > > I am working on a little Tile-Engine, drawing PNG-Sprites on a surface. Since > I switched to a higher screen-resolution and draw more little sprites, and > draw backgrounds, the whole thing is getting much too slow. Most sprites have > transparent parts, and also the background-images are overlapping. > > It seems like it doesnt matter if I draw many little or some huge graphics on > the screen, both seems to be slow. > > I can change parts of the program, but I actually dont know what the problem > is. The program is fast enough if I just draw rectangles (for testing), but > as soon as I draw surfaces, it isnt anymore. > > I am already trying to prevent anything outside the screen to be drawn > (because it is invisible anyway), and to put things being directly next to > each other into the same surfaces which I have to blit, but this doesnt > really help. > > I read that one has to use OpenGL also to enhance the Speed of 2d graphics. I > neither know how to do this with lispbuilder-sdl, nore if this is true. > > Do you have any suggestions for me to get my graphic faster? > > Regards, > Christoph Senjak > _______________________________________________ > application-builder mailing list > application-builder@lispniks.com > http://www.lispniks.com/mailman/listinfo/application-builder > _______________________________________________ application-builder mailing list application-builder@lispniks.com http://www.lispniks.com/mailman/listinfo/application-builder
