Hello, In my email http://lists.openmoko.org/pipermail/openmoko-devel/2008-February/001975.html, I talked about my attempts of using DMA to move pixmap from system ram to video ram. The problem I was hitting is that I needed to first move the pixmap data into an offscreen buffer into video ram and then use the glamo blitter to actually blit the pixmap to the visible are of the video ram where it belongs. The problem with using the blitter from within the kernel was that I needed to add support for the glamo command processor to the kernel and make Xglamo delegate the command processor initialisation to the kernel.
So I have a patch set for that now. These are attached to bug http://bugzilla.openmoko.org/cgi-bin/bugzilla/show_bug.cgi?id=1234. So now, I need to write a test application that will let use compare the speed of this DMA based proof of concept against the classical memcpy used for doing the pixmap migrations. Cheers, Dodji. -- OpenedHand Ltd. Unit R, Homesdale Business Center / 216 - 218 Homesdale Road / Bromley / BR1 2QZ / United Kingdom. Tel,fax: +44 (0) 208 819 6559 Expert Open Source For Consumer Devices - http://www.openedhand.com
