static int pix_norm1_c(uint8_t * pix, int line_size) { int s, i, j; uint32_t *sq = ff_squareTbl + 256; s = 0; for (i = 0; i < 16; i++) { for (j = 0; j < 16; j += 8) { #if 0 s += sq[pix[0]]; s += sq[pix[1]]; s += sq[pix[2]]; s += sq[pix[3]]; s += sq[pix[4]]; s += sq[pix[5]]; s += sq[pix[6]]; s += sq[pix[7]]; #else #if LONG_MAX > 2147483647 register uint64_t x=*(uint64_t*)pix; s += sq[x&0xff]; s += sq[(x>>8)&0xff]; s += sq[(x>>16)&0xff]; s += sq[(x>>24)&0xff]; s += sq[(x>>32)&0xff]; s += sq[(x>>40)&0xff]; s += sq[(x>>48)&0xff]; s += sq[(x>>56)&0xff]; #else register uint32_t x=*(uint32_t*)pix; s += sq[x&0xff]; s += sq[(x>>8)&0xff]; s += sq[(x>>16)&0xff]; s += sq[(x>>24)&0xff]; x=*(uint32_t*)(pix+4); s += sq[x&0xff]; s += sq[(x>>8)&0xff]; s += sq[(x>>16)&0xff]; s += sq[(x>>24)&0xff]; #endif #endif pix += 8; } pix += line_size - 16; } return s; }