On Nov 30, 2007 2:45 AM, Bin Chen <[EMAIL PROTECTED]> wrote: > image, but I am not familiar with XLib, so I want to know if it is > possible to use pure GTK+ API to achieve this? What about the > performance comparing to use XLib directly?
You can use gdk_draw_rgb_image() to paint an RGB array to the screen: http://library.gnome.org/devel/gdk/unstable/gdk-GdkRGB.html#gdk-draw-rgb-image This is a wrapper over the XImage functions, including XShm when available, plus some nice dithering code. It's about as quick as you can get with vanilla X11 calls. There's a tiny program in gtk+-2.x.x/tests/testrgb.c which benchmarks your computer for drawing speed with his operation. You could try that and see if it's going to be quick enough for you. If you want to go faster, you need to use another (non-X11) rendering path. One possibility is the Xv extension, another is to go via OpenGL. Both are somewhat hairy :-( and much less portable. As Ken says, unless you really want to do this all yourself, GStreamer might be the way to go. John _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
