> > Le mercredi 02 février 2005 à 15:21 +0100, Haakon Riiser a > > écrit : > > >> How can I use a frame buffer driver's optimized copyarea, > >> fillrect, blit, etc. from userspace? The only way I've ever > >> seen anyone use the frame buffer device is by mmap()ing it > >> and doing everything manually in the mapped memory. I assume > >> there must be ioctls for accessing the accelerated functions, > >> but after several hours of grepping and googling, I give up. :-( > > > Did you try DirectFB ? > > Thanks for the tip, I hadn't heard about it. I will take a look, > but only to see if it can show me the user space API of /dev/fb. > I don't need a general library that supports a bunch of different > graphics cards. I'm writing my own frame buffer driver for the > GX2 CPU, and I just want to know how to call the various functions > registered in struct fb_ops, so that I can test my code. I mean, > all those functions registered in fb_ops must be accessible > somehow; if they weren't, what purpose would they serve?
The reason for the accelerated functions is for the framebuffer console. Drawing pixel by pixel is to slow. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/