Mauro Carvalho Chehab 559addc25b
[media] fixp-arith: replace sin/cos table by a better precision one ...
The cos table used at fixp-arith.h has only 8 bits of precision.
That causes problems if it is reused on other drivers.
As some media drivers require a higher precision sin/cos
implementation, replace the current implementation by one that
will provide 32 bits precision.
The values generated by the new implementation matches the
32 bit precision of glibc's sin for an angle measured in
integer degrees.
It also provides support for fractional angles via linear
interpolation. On experimental calculus, when used a table
with a 0.001 degree angle, the maximum error for sin is
0.000038, which is likely good enough for practical purposes.
There are some logic there that seems to be specific to the
usage inside ff-memless.c. Move those logic to there, as they're
not needed elsewhere.
Cc: Hans de Goede <hdegoede@redhat.com >
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com >
Signed-off-by: Prashant Laddha <prladdha@cisco.com >
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com >
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com >
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com >
2015-03-02 14:50:06 -03:00
2015-02-10 10:23:15 +00:00
2015-01-29 10:54:43 +02:00
2014-12-07 21:22:09 +01:00
2015-02-19 13:31:40 +03:00
2015-02-03 11:06:11 -08:00
2014-08-08 15:57:26 -07:00
2015-01-15 17:23:22 +01:00
2014-12-14 14:57:16 -08:00
2015-01-29 18:49:57 +00:00
2015-02-01 11:50:35 -08:00
2015-02-21 19:41:38 -08:00
2014-11-24 17:24:08 -05:00
2015-02-18 09:05:48 -08:00
2015-02-09 14:03:53 -08:00
2014-12-15 18:19:03 -08:00
2015-02-11 10:56:48 -08:00
2015-02-18 08:01:44 -08:00
2015-02-11 10:28:45 -08:00
2015-01-14 14:21:51 +01:00
2015-02-21 12:59:04 -08:00
2015-01-21 20:52:07 +01:00
2015-02-08 11:16:27 +08:00
2015-02-16 17:56:05 -08:00
2014-06-04 16:54:05 -07:00
2015-02-08 11:16:55 +08:00
2015-01-29 10:49:28 +02:00
2015-02-18 07:28:37 -08:00
2015-02-04 11:03:20 -08:00
2015-02-05 15:09:26 +01:00
2015-01-28 18:45:23 -05:00
2013-09-24 10:35:17 +01:00
2013-03-12 13:59:14 -07:00
2015-01-28 18:45:23 -05:00
2015-02-17 15:27:47 -08:00
2013-12-24 09:35:17 -08:00
2010-12-06 15:58:43 -05:00
2015-02-17 16:12:34 -08:00
2014-05-27 01:29:01 +02:00
2012-09-10 11:13:16 -07:00
2015-02-17 21:33:27 +01:00
2015-02-05 09:30:43 -07:00
2012-03-04 17:54:34 -05:00
2015-02-13 21:21:39 -08:00
2014-11-16 09:55:39 +01:00
2015-02-12 14:13:23 -08:00
2015-02-11 11:24:14 -07:00
2009-01-04 13:33:20 -08:00
2015-01-20 14:02:58 -07:00
2012-10-13 10:46:48 +01:00
2015-01-06 12:02:46 -05:00
2015-02-18 09:40:07 -08:00
2015-02-02 14:23:42 -08:00
2014-02-09 15:11:47 +01:00
2013-02-13 06:00:53 -08:00
2015-02-11 17:06:04 -08:00
2015-01-27 09:37:53 +00:00
2015-02-13 21:21:42 -08:00
2015-02-13 21:21:42 -08:00
2015-02-13 21:21:40 -08:00
2014-04-15 09:15:39 -07:00
2015-02-21 10:27:33 -08:00
2013-11-15 09:32:21 +09:00
2014-05-28 13:37:21 -07:00
2013-05-20 12:27:59 -07:00
2015-02-04 10:42:55 -08:00
2014-06-25 13:26:47 -07:00
2015-01-23 23:06:44 +01:00
2015-02-15 19:40:09 +01:00
2015-02-13 21:21:39 -08:00
2014-12-05 17:19:27 -06:00
2015-01-20 14:44:19 +11:00
2015-02-12 18:54:15 -08:00
2009-09-10 10:00:05 -07:00
2015-02-22 11:38:38 -05:00
2013-05-12 14:16:21 +02:00
2015-02-17 12:21:51 -05:00
2010-08-04 11:00:45 +02:00
2015-01-30 17:56:40 +09:00
2015-02-09 13:06:47 -05:00
2015-01-26 15:57:59 -08:00
2011-06-10 14:55:36 +02:00
2014-12-01 16:50:45 +00:00
2015-02-02 16:55:43 -08:00
2010-07-28 09:59:01 -04:00
2015-01-21 19:21:30 +01:00
2014-11-10 09:27:30 -07:00
2014-10-03 14:55:48 -07:00
2014-09-29 00:04:55 -04:00
2013-03-03 23:59:59 -08:00
2014-10-20 14:22:22 +02:00
2015-02-11 18:03:54 -08:00
2014-06-22 16:34:11 -06:00
2008-02-29 08:06:37 -08:00
2013-11-09 00:16:23 -05:00
2008-01-28 23:21:18 +01:00
2013-05-07 18:38:27 -07:00
2012-10-13 10:46:48 +01:00
2014-01-16 10:23:02 +10:30
2015-02-05 14:35:17 +01:00
2015-02-11 17:04:48 -08:00
2012-10-13 10:46:48 +01:00
2015-01-15 13:33:41 +02:00
2013-09-26 15:06:58 -07:00
2012-10-13 10:46:48 +01:00
2013-09-26 15:06:58 -07:00
2014-11-03 11:53:34 -05:00
2014-12-10 17:41:10 -08:00
2014-05-26 14:33:10 +02:00
2015-03-02 14:50:06 -03:00
2012-10-13 10:46:48 +01:00
2015-01-25 23:17:28 -05:00
2009-12-17 10:58:17 -05:00
2013-09-12 10:12:47 -07:00
2015-02-18 10:21:47 -08:00
2013-09-27 18:40:25 +01:00
2012-10-13 10:46:48 +01:00
2015-02-10 14:30:28 -08:00
2015-02-12 08:37:41 -08:00
2015-01-16 17:04:25 -05:00
2014-10-14 17:03:53 -04:00
2015-02-11 17:06:04 -08:00
2014-05-20 10:30:40 +09:00
2014-10-28 17:30:59 +01:00
2014-12-10 15:17:46 -05:00
2013-10-11 17:21:14 +11:00
2015-01-27 10:19:12 -02:00
2013-04-30 10:09:06 +02:00
2015-01-27 10:09:14 +01:00
2015-01-23 12:13:20 +01:00
2015-02-12 18:54:08 -08:00
2015-02-11 17:06:01 -08:00
2014-12-26 08:33:34 +11:00
2015-01-25 09:18:00 -08:00
2012-10-13 10:46:48 +01:00
2015-02-21 12:41:50 -08:00
2013-12-07 01:03:14 +01:00
2015-01-27 11:09:13 +01:00
2015-01-18 00:23:57 -05:00
2012-10-13 10:46:48 +01:00
2015-02-05 14:33:28 -08:00
2008-08-02 18:36:10 +01:00
2008-07-09 12:09:28 -04:00
2014-11-14 17:08:58 -05:00
2015-02-13 21:21:41 -08:00
2014-05-27 14:26:31 -07:00
2014-05-14 16:40:04 -07:00
2012-10-09 16:22:39 +09:00
2014-11-07 10:09:07 -08:00
2015-01-19 16:11:59 +00:00
2015-01-19 14:55:22 +01:00
2012-12-09 00:20:28 -05:00
2014-12-16 15:53:03 -08:00
2015-02-02 19:28:04 -08:00
2015-01-15 10:34:54 +01:00
2015-01-15 10:34:54 +01:00
2015-02-13 21:21:42 -08:00
2012-10-13 10:46:48 +01:00
2015-02-19 12:39:02 -06:00
2007-07-31 15:39:40 -07:00
2012-10-13 10:46:48 +01:00
2015-02-12 18:54:13 -08:00
2014-10-14 15:05:34 -04:00
2015-02-13 21:21:36 -08:00
2015-02-17 14:34:51 -08:00
2012-07-21 10:34:00 -07:00
2014-04-25 12:00:49 -07:00
2015-01-13 16:10:16 +00:00
2015-01-24 10:11:12 +01:00
2015-02-13 09:55:09 -08:00
2013-07-03 16:07:43 -07:00
2015-01-26 14:59:08 -08:00
2015-01-26 14:59:08 -08:00
2015-02-11 16:47:46 +10:30
2015-02-12 14:30:53 -08:00
2015-02-12 18:54:10 -08:00
2015-01-04 23:11:43 -05:00
2015-02-04 11:25:51 +01:00
2012-10-13 10:46:48 +01:00
2015-01-25 23:16:29 -05:00
2011-12-12 22:06:55 -08:00
2014-10-08 10:39:41 +05:30
2015-01-12 05:04:10 -08:00
2014-08-06 18:01:15 -07:00
2015-02-12 18:54:09 -08:00
2014-10-22 16:14:04 -06:00
2012-06-25 11:53:47 +02:00
2012-01-23 08:38:47 -08:00
2015-02-12 18:54:08 -08:00
2014-05-27 17:43:11 -07:00
2015-02-11 17:06:04 -08:00
2015-02-16 17:56:03 -08:00
2015-02-11 17:06:02 -08:00
2015-02-17 17:41:19 -08:00
2015-02-13 21:21:42 -08:00
2015-01-20 11:38:33 +10:30
2013-06-26 12:10:56 +02:00
2015-02-14 11:32:59 -08:00
2015-02-01 23:16:33 -08:00
2015-02-11 15:12:12 -08:00
2015-02-12 10:39:41 -08:00
2015-02-03 11:06:34 -08:00
2015-02-13 21:40:27 -05:00
2015-02-03 11:06:52 -08:00
2015-02-03 11:06:45 -08:00
2015-02-18 13:11:09 -08:00
2015-02-13 21:21:39 -08:00
2015-02-19 16:15:37 -07:00
2014-02-05 10:04:37 -06:00
2015-01-15 17:23:17 +01:00
2014-12-11 13:06:58 -08:00
2012-10-13 10:46:48 +01:00
2015-02-11 17:06:03 -08:00
2015-01-14 15:07:32 +01:00
2015-02-11 17:06:02 -08:00
2015-02-11 17:06:07 -08:00
2015-01-28 14:03:09 +00:00
2014-04-03 16:21:00 -07:00
2012-10-13 10:46:48 +01:00
2014-11-13 10:35:25 -07:00
2015-02-10 15:09:41 -08:00
2014-01-23 20:17:18 +00:00
2014-11-21 11:19:15 -05:00
2015-02-16 14:58:12 -08:00
2015-01-27 00:16:51 -08:00
2015-01-25 23:17:28 -05:00
2009-02-14 22:58:35 -08:00
2014-11-06 15:16:02 -08:00
2015-02-03 22:56:53 +01:00
2014-12-12 15:26:48 -08:00
2015-02-03 22:59:25 +01:00
2015-02-02 10:11:25 -08:00
2013-08-19 21:22:34 -07:00
2011-11-02 16:07:02 -07:00
2014-01-23 14:48:35 +01:00
2015-02-12 18:54:15 -08:00
2014-09-17 16:33:11 -04:00
2014-05-18 19:01:33 -07:00
2015-01-16 16:01:10 -08:00
2015-01-16 16:01:10 -08:00
2015-01-30 12:51:21 +01:00
2015-01-30 12:50:32 +01:00
2010-02-08 18:19:41 -06:00
2014-08-24 18:36:01 -07:00
2010-02-10 17:47:17 -08:00
2012-05-17 15:18:37 +02:00
2015-02-17 14:34:52 -08:00
2015-01-15 23:34:34 -08:00
2015-01-15 23:34:34 -08:00
2015-01-15 23:34:34 -08:00
2015-01-27 13:13:04 +00:00
2013-04-30 17:04:09 -07:00
2014-10-20 10:11:29 +02:00
2015-02-05 15:09:25 +01:00
2012-10-13 10:46:48 +01:00
2015-02-04 20:34:52 -08:00
2014-11-10 16:45:43 -05:00
2015-02-16 17:56:03 -08:00
2012-07-04 11:51:59 +03:00
2015-01-23 17:21:57 -08:00
2014-12-09 13:36:57 -05:00
2015-02-21 10:40:02 -08:00
2013-06-17 16:38:57 -07:00
2012-10-13 10:46:48 +01:00
2015-01-25 09:17:57 -08:00
2015-02-13 21:21:39 -08:00
2015-02-13 21:21:39 -08:00
2015-02-02 10:11:27 -08:00
2015-02-02 10:11:28 -08:00
2014-03-17 16:20:49 -07:00
2012-10-13 10:46:48 +01:00
2014-07-02 16:01:51 +02:00
2015-02-12 18:54:09 -08:00
2012-06-28 17:14:34 +01:00
2015-02-11 15:12:12 -08:00
2015-02-12 18:54:09 -08:00
2015-02-13 21:21:41 -08:00
2015-02-13 21:21:41 -08:00
2015-01-22 15:10:56 +01:00
2012-12-07 12:48:00 -05:00
2015-02-04 01:34:15 -05:00
2005-04-16 15:20:36 -07:00
2015-01-03 14:32:57 -05:00
2015-01-03 14:32:57 -05:00
2014-11-26 19:33:57 -08:00
2008-05-26 16:15:32 +02:00
2014-12-13 12:42:48 -08:00
2006-12-07 02:14:08 +01:00
2012-10-13 10:46:48 +01:00
2010-08-09 16:48:44 -04:00
2012-02-24 10:05:59 +01:00
2012-10-13 10:46:48 +01:00
2015-02-12 18:54:13 -08:00
2015-02-13 21:21:35 -08:00
2009-04-10 15:48:52 +02:00
2013-02-13 12:15:50 -08:00
2015-02-13 23:49:36 +01:00
2015-02-11 17:06:00 -08:00
2015-02-12 18:54:08 -08:00
2015-01-27 09:38:00 +00:00
2011-03-15 00:43:46 +01:00
2014-11-07 10:53:25 -08:00
2013-10-16 13:01:44 -07:00
2012-09-13 16:47:34 +02:00
2010-03-30 22:02:32 +09:00
2015-02-08 01:03:13 -08:00
2015-02-03 15:48:51 -08:00
2015-02-15 19:40:09 +01:00
2014-07-23 10:17:53 -07:00
2015-01-22 12:28:02 +01:00
2015-01-23 17:21:55 -08:00
2012-08-21 16:28:31 +02:00
2012-10-09 16:22:32 +09:00
2010-11-29 08:55:25 +11:00
2013-03-15 00:36:09 -04:00
2015-02-07 19:34:25 -05:00
2015-02-02 10:11:28 -08:00
2015-02-12 18:54:13 -08:00
2013-04-15 21:23:03 +01:00
2015-02-17 15:48:33 -08:00
2015-01-25 20:54:17 +08:00
2015-02-10 12:37:47 -07:00
2012-10-13 10:46:48 +01:00
2015-01-23 14:57:10 +10:30
2013-10-29 11:28:11 +10:30
2014-04-07 16:35:53 -07:00
2015-02-13 21:21:42 -08:00
2014-06-04 16:53:57 -07:00
2015-02-04 01:34:14 -05:00
2015-02-02 10:09:54 -08:00
2013-12-02 20:43:15 +01:00
2015-02-12 14:30:53 -08:00
2015-02-12 18:54:12 -08:00
2015-02-12 18:54:12 -08:00
559addc25b