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| author | Dave Hooper <dave@beermex.com> | 2010-02-17 00:49:53 +0000 |
|---|---|---|
| committer | Dave Hooper <dave@beermex.com> | 2010-02-17 00:49:53 +0000 |
| commit | 42774d3128b91d5a37344cb40d56d3c4d147e5f2 (patch) | |
| tree | bf336b407992ec9a5e454556f3351e3f8a0d10de /apps/codecs/lib/codeclib_misc.h | |
| parent | 62257ebc38bc0a3095b25dd0f58c4c8215edf602 (diff) | |
| download | rockbox-42774d3128b91d5a37344cb40d56d3c4d147e5f2.zip rockbox-42774d3128b91d5a37344cb40d56d3c4d147e5f2.tar.gz rockbox-42774d3128b91d5a37344cb40d56d3c4d147e5f2.tar.bz2 rockbox-42774d3128b91d5a37344cb40d56d3c4d147e5f2.tar.xz | |
Merge from branches/mdctexp - faster ifft+imdct in codec lib
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24712 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/codecs/lib/codeclib_misc.h')
| -rw-r--r-- | apps/codecs/lib/codeclib_misc.h | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/apps/codecs/lib/codeclib_misc.h b/apps/codecs/lib/codeclib_misc.h index 015a15e..6749231 100644 --- a/apps/codecs/lib/codeclib_misc.h +++ b/apps/codecs/lib/codeclib_misc.h @@ -132,23 +132,36 @@ static inline int32_t MULT31_SHIFT15(int32_t x, int32_t y) { #else -static inline void XPROD31(int32_t a, int32_t b, - int32_t t, int32_t v, - int32_t *x, int32_t *y) +static inline void XPROD31(int32_t a, int32_t b, + int32_t t, int32_t v, + int32_t *x, int32_t *y) { *x = MULT31(a, t) + MULT31(b, v); *y = MULT31(b, t) - MULT31(a, v); } -static inline void XNPROD31(int32_t a, int32_t b, - int32_t t, int32_t v, - int32_t *x, int32_t *y) +static inline void XNPROD31(int32_t a, int32_t b, + int32_t t, int32_t v, + int32_t *x, int32_t *y) { *x = MULT31(a, t) - MULT31(b, v); *y = MULT31(b, t) + MULT31(a, v); } #endif +#define XPROD31_R(_a, _b, _t, _v, _x, _y)\ +{\ + _x = MULT31(_a, _t) + MULT31(_b, _v);\ + _y = MULT31(_b, _t) - MULT31(_a, _v);\ +} + +#define XNPROD31_R(_a, _b, _t, _v, _x, _y)\ +{\ + _x = MULT31(_a, _t) - MULT31(_b, _v);\ + _y = MULT31(_b, _t) + MULT31(_a, _v);\ +} + + #ifndef _V_VECT_OPS #define _V_VECT_OPS |