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libavutil/softfloat: Change order of fields in SoftFloat structure.

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Softfloat will be used in implementation of AAC fixed point decoder.
This change is needed in order to more easily integrate ffmpegs softfloat in
already developed algorithm for AAC.

Signed-off-by: Nedeljko Babic <nedeljko.babic@imgtec.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Nedeljko Babic 2015-04-15 15:14:06 +02:00 committed by Michael Niedermayer
parent 574978d2bd
commit f4ccf38902
1 changed files with 7 additions and 7 deletions
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14
libavutil/softfloat.h
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@ -31,8 +31,8 @@
#define ONE_BITS 29
typedef struct SoftFloat{
int32_t exp;
int32_t mant;
int32_t exp;
}SoftFloat;
static av_const SoftFloat av_normalize_sf(SoftFloat a){
@ -67,10 +67,10 @@ static inline av_const SoftFloat av_normalize1_sf(SoftFloat a){
return a;
#elif 1
int t= a.mant + 0x40000000 < 0;
return (SoftFloat){a.exp+t, a.mant>>t};
return (SoftFloat){ a.mant>>t, a.exp+t};
#else
int t= (a.mant + 0x40000000U)>>31;
return (SoftFloat){a.exp+t, a.mant>>t};
return (SoftFloat){a.mant>>t, a.exp+t};
#endif
}
@ -105,19 +105,19 @@ static inline av_const int av_cmp_sf(SoftFloat a, SoftFloat b){
static inline av_const SoftFloat av_add_sf(SoftFloat a, SoftFloat b){
int t= a.exp - b.exp;
if (t <-31) return b;
else if (t < 0) return av_normalize1_sf((SoftFloat){b.exp, b.mant + (a.mant >> (-t))});
else if (t < 32) return av_normalize1_sf((SoftFloat){a.exp, a.mant + (b.mant >> t )});
else if (t < 0) return av_normalize1_sf((SoftFloat){b.mant + (a.mant >> (-t)), b.exp});
else if (t < 32) return av_normalize1_sf((SoftFloat){a.mant + (b.mant >> t ), a.exp});
else return a;
}
static inline av_const SoftFloat av_sub_sf(SoftFloat a, SoftFloat b){
return av_add_sf(a, (SoftFloat){b.exp, -b.mant});
return av_add_sf(a, (SoftFloat){ -b.mant, b.exp});
}
//FIXME sqrt, log, exp, pow, sin, cos
static inline av_const SoftFloat av_int2sf(int v, int frac_bits){
return av_normalize_sf((SoftFloat){ONE_BITS-frac_bits, v});
return av_normalize_sf((SoftFloat){v, ONE_BITS-frac_bits});
}
/**