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faster C linear blend & interpolate deinterlacers 

Originally committed as revision 1716 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2003-03-29 14:06:24 +00:00
parent 134eb1e504
commit 99d33fa3e6
1 changed files with 51 additions and 20 deletions
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71
libavcodec/libpostproc/postprocess_template.c
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@ -1562,15 +1562,20 @@ static inline void RENAME(deInterlaceInterpolateLinear)(uint8_t src[], int strid
: "%eax", "%ecx"
);
#else
int x;
int a, b, x;
src+= 4*stride;
for(x=0; x<8; x++)
{
src[stride] = (src[0] + src[stride*2])>>1;
src[stride*3] = (src[stride*2] + src[stride*4])>>1;
src[stride*5] = (src[stride*4] + src[stride*6])>>1;
src[stride*7] = (src[stride*6] + src[stride*8])>>1;
src++;
for(x=0; x<2; x++){
a= *(uint32_t*)&src[stride*0];
b= *(uint32_t*)&src[stride*2];
*(uint32_t*)&src[stride*1]= (a|b) - (((a^b)&0xFEFEFEFEUL)>>1);
a= *(uint32_t*)&src[stride*4];
*(uint32_t*)&src[stride*3]= (a|b) - (((a^b)&0xFEFEFEFEUL)>>1);
b= *(uint32_t*)&src[stride*6];
*(uint32_t*)&src[stride*5]= (a|b) - (((a^b)&0xFEFEFEFEUL)>>1);
a= *(uint32_t*)&src[stride*8];
*(uint32_t*)&src[stride*7]= (a|b) - (((a^b)&0xFEFEFEFEUL)>>1);
src += 4;
}
#endif
}
@ -1875,19 +1880,45 @@ static inline void RENAME(deInterlaceBlendLinear)(uint8_t src[], int stride)
: "%eax", "%edx"
);
#else
int x;
int a, b, c, x;
src+= 4*stride;
for(x=0; x<8; x++)
{
src[0 ] = (src[0 ] + 2*src[stride ] + src[stride*2])>>2;
src[stride ] = (src[stride ] + 2*src[stride*2] + src[stride*3])>>2;
src[stride*2] = (src[stride*2] + 2*src[stride*3] + src[stride*4])>>2;
src[stride*3] = (src[stride*3] + 2*src[stride*4] + src[stride*5])>>2;
src[stride*4] = (src[stride*4] + 2*src[stride*5] + src[stride*6])>>2;
src[stride*5] = (src[stride*5] + 2*src[stride*6] + src[stride*7])>>2;
src[stride*6] = (src[stride*6] + 2*src[stride*7] + src[stride*8])>>2;
src[stride*7] = (src[stride*7] + 2*src[stride*8] + src[stride*9])>>2;
src++;
for(x=0; x<2; x++){
a= *(uint32_t*)&src[stride*0];
b= *(uint32_t*)&src[stride*1];
c= *(uint32_t*)&src[stride*2];
a= (a&c) + (((a^c)&0xFEFEFEFEUL)>>1);
*(uint32_t*)&src[stride*0]= (a|b) - (((a^b)&0xFEFEFEFEUL)>>1);
a= *(uint32_t*)&src[stride*3];
b= (a&b) + (((a^b)&0xFEFEFEFEUL)>>1);
*(uint32_t*)&src[stride*1]= (c|b) - (((c^b)&0xFEFEFEFEUL)>>1);
b= *(uint32_t*)&src[stride*4];
c= (b&c) + (((b^c)&0xFEFEFEFEUL)>>1);
*(uint32_t*)&src[stride*2]= (c|a) - (((c^a)&0xFEFEFEFEUL)>>1);
c= *(uint32_t*)&src[stride*5];
a= (a&c) + (((a^c)&0xFEFEFEFEUL)>>1);
*(uint32_t*)&src[stride*3]= (a|b) - (((a^b)&0xFEFEFEFEUL)>>1);
a= *(uint32_t*)&src[stride*6];
b= (a&b) + (((a^b)&0xFEFEFEFEUL)>>1);
*(uint32_t*)&src[stride*4]= (c|b) - (((c^b)&0xFEFEFEFEUL)>>1);
b= *(uint32_t*)&src[stride*7];
c= (b&c) + (((b^c)&0xFEFEFEFEUL)>>1);
*(uint32_t*)&src[stride*5]= (c|a) - (((c^a)&0xFEFEFEFEUL)>>1);
c= *(uint32_t*)&src[stride*8];
a= (a&c) + (((a^c)&0xFEFEFEFEUL)>>1);
*(uint32_t*)&src[stride*6]= (a|b) - (((a^b)&0xFEFEFEFEUL)>>1);
a= *(uint32_t*)&src[stride*9];
b= (a&b) + (((a^b)&0xFEFEFEFEUL)>>1);
*(uint32_t*)&src[stride*7]= (c|b) - (((c^b)&0xFEFEFEFEUL)>>1);
src += 4;
}
#endif
}