Hi! I'd just like to publicly thank you for all your hard work on improving the DRM2 support. This is something that's been sorely lacking lately.
So, thank you! -adrian On 25 August 2013 05:27, Jean-Sebastien Pedron <dumbb...@freebsd.org> wrote: > Author: dumbbell > Date: Sun Aug 25 12:27:15 2013 > New Revision: 254853 > URL: http://svnweb.freebsd.org/changeset/base/254853 > > Log: > drm: Import drm_fixed.h from Linux 3.8 > > Added: > head/sys/dev/drm2/drm_fixed.h (contents, props changed) > > Added: head/sys/dev/drm2/drm_fixed.h > > ============================================================================== > --- /dev/null 00:00:00 1970 (empty, because file is newly added) > +++ head/sys/dev/drm2/drm_fixed.h Sun Aug 25 12:27:15 2013 > (r254853) > @@ -0,0 +1,72 @@ > +/* > + * Copyright 2009 Red Hat Inc. > + * > + * Permission is hereby granted, free of charge, to any person obtaining a > + * copy of this software and associated documentation files (the > "Software"), > + * to deal in the Software without restriction, including without > limitation > + * the rights to use, copy, modify, merge, publish, distribute, > sublicense, > + * and/or sell copies of the Software, and to permit persons to whom the > + * Software is furnished to do so, subject to the following conditions: > + * > + * The above copyright notice and this permission notice shall be > included in > + * all copies or substantial portions of the Software. > + * > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, > EXPRESS OR > + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF > MERCHANTABILITY, > + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT > SHALL > + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES > OR > + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, > + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR > + * OTHER DEALINGS IN THE SOFTWARE. > + * > + * Authors: Dave Airlie > + */ > + > +#include <sys/cdefs.h> > +__FBSDID("$FreeBSD$"); > + > +#ifndef DRM_FIXED_H > +#define DRM_FIXED_H > + > +typedef union dfixed { > + u32 full; > +} fixed20_12; > + > + > +#define dfixed_const(A) (u32)(((A) << 12))/* + ((B + 0.000122)*4096)) */ > +#define dfixed_const_half(A) (u32)(((A) << 12) + 2048) > +#define dfixed_const_666(A) (u32)(((A) << 12) + 2731) > +#define dfixed_const_8(A) (u32)(((A) << 12) + 3277) > +#define dfixed_mul(A, B) ((u64)((u64)(A).full * (B).full + 2048) >> 12) > +#define dfixed_init(A) { .full = dfixed_const((A)) } > +#define dfixed_init_half(A) { .full = dfixed_const_half((A)) } > +#define dfixed_trunc(A) ((A).full >> 12) > +#define dfixed_frac(A) ((A).full & ((1 << 12) - 1)) > + > +static inline u32 dfixed_floor(fixed20_12 A) > +{ > + u32 non_frac = dfixed_trunc(A); > + > + return dfixed_const(non_frac); > +} > + > +static inline u32 dfixed_ceil(fixed20_12 A) > +{ > + u32 non_frac = dfixed_trunc(A); > + > + if (A.full > dfixed_const(non_frac)) > + return dfixed_const(non_frac + 1); > + else > + return dfixed_const(non_frac); > +} > + > +static inline u32 dfixed_div(fixed20_12 A, fixed20_12 B) > +{ > + u64 tmp = ((u64)A.full << 13); > + > + do_div(tmp, B.full); > + tmp += 1; > + tmp /= 2; > + return lower_32_bits(tmp); > +} > +#endif > _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
