I'm possibly Doing It Wrong, but... I'm playing around with an X client, I have some shared memory full of pixels, and I want to paint them on a window, with alpha-blending. I also want to know when the paint is complete, so I can re-use that shared memory buffer for different pixels.
IIUC, Render gives me the alpha-blending, but not the SHM completion event. SHM gives me the opposite. Is there a good way that I can have my cake and eat it too? I suppose that I could call SHM's GetImage to a temporary shared buffer, do the alpha-blending on the client, and call SHM's PutImage. Or, I could call SHM's PutImage to a temporary server-side buffer, and call Render's Composite. But neither approach seems ideal, as it involves creating and cleaning up a temporary buffer. If it matters, I'm speaking X protocol directly instead of using Xlib. I'm actually using the Go programming language and its equivalent of XCB. _______________________________________________ xorg@lists.x.org: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: http://lists.x.org/mailman/listinfo/xorg Your subscription address: %(user_address)s
