Re: [PATCH] modesetting: Support native primary plane rotation

From: Chris Wilson chris@chris-wilson.co.uk Date: Wed, 9 Jul 2014 12:14:41 +0100

With the advent of universal drm planes and the introduction of generic plane properties for rotations, we can query and program the hardware for native rotation support.

NOTE: this depends upon the next release of libdrm to remove one opencoded define.

v2: Use enum to determine primary plane, suggested by Pekka Paalanen. Use libobj for replacement ffs(), suggested by walter harms v3: Support combinations of rotations and reflections Eliminate use of ffs() and so remove need for libobj

Surely that means...

+#ifndef HAVE_FFS +extern int ffs(unsigned int value); +#endif

This bit should be removed ad well?