rockbox/apps/codecs/libwmapro/wmapro_math.h, branch working

Add codecs to librbcodec.

2012-04-25T20:13:20+00:00

Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius 
Tested-by: Nils Wallménius

Another minor ARM speedup for libwmapro. Drop lsb of multiplication result in fixmul31(). The difference to current implementation is +/-1 in the output signal. Same routines are used for other codecs and in the codec lib as well.

2010-08-05T21:59:29+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27728 a1c6a512-1295-4272-9138-f99709370657

Minor of libwmapro on ARM. Swap operands for fixmul31, is 1% faster.

2010-08-05T21:43:49+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27727 a1c6a512-1295-4272-9138-f99709370657

Remove the comment about Coldfire asm. The current code (using fixmul16 macros) is fast enough; even faster than an equivalent CF asm version, as pointed out by Nils Wallménius.

2010-08-05T18:53:42+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27724 a1c6a512-1295-4272-9138-f99709370657

libwmapro: remove coldfire fixmul24 as it is both incorrect and unused, fix fixmul 31 comment.

2010-08-05T10:35:06+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27715 a1c6a512-1295-4272-9138-f99709370657

Increase wmapro decoder output sample depth to 24 bits, makes the mean error between our output and the original floating point decoder ~5e-8. (FS#11498 by Buschel)

2010-08-04T23:21:35+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27703 a1c6a512-1295-4272-9138-f99709370657

libwmapro: fix comment for coldfire fixmul31.

2010-07-30T09:14:28+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27626 a1c6a512-1295-4272-9138-f99709370657

Maintenance and minor speedup of libwmapro. Comment unused arrays, fix comment, remove tabs and introduce WMAPRO_FRACT to wma.h to remove magic numbers. Swap operands of fixmul16-call for minor speedup on ARM (+1%).

2010-07-29T22:18:04+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27617 a1c6a512-1295-4272-9138-f99709370657

libwmapro: coldfire asm for vector_fixmul_scalar, 1% speedup

2010-07-28T23:25:45+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27607 a1c6a512-1295-4272-9138-f99709370657

Refactor asm macros in libwmapro's vector_fixmul_() functions. No change to output samples.

2010-07-28T20:46:51+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27604 a1c6a512-1295-4272-9138-f99709370657