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Merge from branches/mdctexp - faster ifft+imdct in codec lib

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24712 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dave Hooper 2010-02-17 00:49:53 +00:00
parent 62257ebc38
commit 42774d3128
31 changed files with 2000 additions and 320 deletions
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25
apps/codecs/lib/codeclib_misc.h
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@ -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