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| author | Dave Hooper <dave@beermex.com> | 2010-02-20 11:00:16 +0000 |
|---|---|---|
| committer | Dave Hooper <dave@beermex.com> | 2010-02-20 11:00:16 +0000 |
| commit | 730a618fae0e04c536a1cb4d561887b450b7d068 (patch) | |
| tree | 93f388a6cc8942037e55c2e68505a211f461b60a /apps/codecs/lib/mdct.c | |
| parent | 9f63f4f2fcb5400a2c043504799228e79c424cab (diff) | |
| download | rockbox-730a618fae0e04c536a1cb4d561887b450b7d068.zip rockbox-730a618fae0e04c536a1cb4d561887b450b7d068.tar.gz rockbox-730a618fae0e04c536a1cb4d561887b450b7d068.tar.bz2 rockbox-730a618fae0e04c536a1cb4d561887b450b7d068.tar.xz | |
Adding ICODE for imdct (and its constituent ifft bits) gives 0.5MHz boost on arm (ipod video) and about 5MHz boost on coldfire (H120)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24786 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/codecs/lib/mdct.c')
| -rw-r--r-- | apps/codecs/lib/mdct.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/apps/codecs/lib/mdct.c b/apps/codecs/lib/mdct.c index 3c9fe41..aefd553 100644 --- a/apps/codecs/lib/mdct.c +++ b/apps/codecs/lib/mdct.c @@ -25,6 +25,10 @@ #include "codeclib_misc.h" #include "mdct_lookup.h" +#ifndef ICODE_ATTR_TREMOR_MDCT +#define ICODE_ATTR_TREMOR_MDCT ICODE_ATTR +#endif + /** * Compute the middle half of the inverse MDCT of size N = 2^nbits * thus excluding the parts that can be derived by symmetry @@ -34,6 +38,7 @@ * NOTE - CANNOT CURRENTLY OPERATE IN PLACE (input and output must * not overlap or intersect at all) */ +void ff_imdct_half(unsigned int nbits, fixed32 *output, const fixed32 *input) ICODE_ATTR_TREMOR_MDCT; void ff_imdct_half(unsigned int nbits, fixed32 *output, const fixed32 *input) { int n8, n4, n2, n, j; @@ -244,6 +249,7 @@ void ff_imdct_half(unsigned int nbits, fixed32 *output, const fixed32 *input) * <-----------output-----------> * */ +void ff_imdct_calc(unsigned int nbits, fixed32 *output, const fixed32 *input) ICODE_ATTR_TREMOR_MDCT; void ff_imdct_calc(unsigned int nbits, fixed32 *output, const fixed32 *input) { const int n = (1<<nbits); |