On Sun, 4 Mar 2012 20:37:48 -0800 Mandeep Singh Baines <[email protected]> wrote:
> Hi, > > I have recently started playing around with EGL_PLATFORM=drm. Using > eglkms.c and compositor-drm.c as examples, I've been able to port some > simple EGL/GLESv2 applications without much effort. But the one weird > thing is that everything gets rendered upside down and backwards. I > guess I could solve this with the projection matrix but just wondering > why I'm getting this effect. How does compositor-drm deal with this. Look for WL_OUTPUT_FLIPPED in weston. I guess and if I remember right, flipped y-axis is because OpenGL back/front buffer of a window has origin at top-left with y growing down, but FBOs have origin at bottom-left with y growing up. Or maybe it was vice versa, I didn't check. Thanks, pq _______________________________________________ wayland-devel mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/wayland-devel
