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simplify the init 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@12838 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
alex 2004-07-17 08:53:20 +00:00
parent 3914e47b64
commit 82e3eeea4f
1 changed files with 13 additions and 45 deletions
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56
postproc/yuv2rgb_altivec.c
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@ -564,58 +564,28 @@ SwsFunc yuv2rgb_init_altivec (SwsContext *c)
return NULL;
}
void yuv2rgb_altivec_init_tables (SwsContext *c, const int inv_table[4])
{
vector signed short
CY = (vector signed short)(0x7fff),
CRV = (vector signed short)(22972),
CBU = (vector signed short)(29029),
CGU = (vector signed short)(-11276),
CGV = (vector signed short)(-23400),
OY;
vector signed short Y0;
int brightness = c->brightness, contrast = c->contrast, saturation = c->saturation;
int64_t crv __attribute__ ((aligned(16)));
int64_t cbu __attribute__ ((aligned(16)));
int64_t cgu __attribute__ ((aligned(16)));
int64_t cgv __attribute__ ((aligned(16)));
short tmp __attribute__ ((aligned(16)));
vector signed short CY, CRV, CBU, CGU, CGV, OY, Y0;
int64_t crv __attribute__ ((aligned(16))) = inv_table[0];
int64_t cbu __attribute__ ((aligned(16))) = inv_table[1];
int64_t cgu __attribute__ ((aligned(16))) = inv_table[2];
int64_t cgv __attribute__ ((aligned(16))) = inv_table[3];
int64_t cy = (1<<16)-1;
int64_t oy = 0;
short tmp __attribute__ ((aligned(16)));
if ((c->flags & SWS_CPU_CAPS_ALTIVEC) == 0)
return;
crv = inv_table[0];
cbu = inv_table[1];
cgu = inv_table[2];
cgv = inv_table[3];
cy = (cy *c->contrast )>>17;
crv= (crv*c->contrast * c->saturation)>>32;
cbu= (cbu*c->contrast * c->saturation)>>32;
cgu= (cgu*c->contrast * c->saturation)>>32;
cgv= (cgv*c->contrast * c->saturation)>>32;
#if 0
printf ("crv: %hvx\n", CRV);
printf ("cbu: %hvx\n", CBU);
printf ("cgv: %hvx\n", CGV);
printf ("cgu: %hvx\n", CGU);
oy -= 256*c->brightness;
printf ("contrast: %d, brightness: %d, saturation: %d\n", contrast, brightness, saturation);
printf("%lld %lld %lld %lld %lld\n", cy, crv, cbu, cgu, cgv);
#endif
cy = (cy *contrast )>>17;
crv= (crv*contrast * saturation)>>32;
cbu= (cbu*contrast * saturation)>>32;
cgu= (cgu*contrast * saturation)>>32;
cgv= (cgv*contrast * saturation)>>32;
oy -= 256*brightness;
//printf("%llx %llx %llx %llx %llx\n", cy, crv, cbu, cgu, cgv);
// vector signed short CBU,CRV,CGU,CGY,CY;
tmp = cy;
CY = vec_lde (0, &tmp);
CY = vec_splat (CY, 0);
@ -827,5 +797,3 @@ altivec_yuv2packedX (SwsContext *c,
if (vCCoeffsBank) free (vCCoeffsBank);
}