bugs and solutions

[MichealRay]

Hi, Fig1024, your optimization is awesome, it means a lot to me. thanks!
However, i found some bugs there, and below is some of my solutions

First, according to the comment statements from https://github.com/nothings/stb.git. Maybe we should add
#define STB_IMAGE_IMPLEMENTATION
#define STB_IMAGE_WRITE_IMPLEMENTATION
at the begining of RecursiveBilateralFilter.cpp. In some situation, it couldnot pass the compile if we don't.

Second, it crash in RBFilter_SSE2.cpp,when i run your code. After debug, I found it's because out_pix4 is not defined before used in function verticalFilter
pixB = _mm_shuffle_epi8(pixB, mask_pack);

out_pix4 = _mm_srli_si128(out_pix4, 4); // shift
out_pix4 = _mm_or_si128(out_pix4, pixB);
I try to change the codes to be
if (i == 0) //
{
out_pix4 = _mm_shuffle_epi8(pixB, mask_pack);
}
else
{
pixB = _mm_shuffle_epi8(pixB, mask_pack);

out_pix4 = _mm_srli_si128(out_pix4, 4); // shift 
out_pix4 = _mm_or_si128(out_pix4, pixB);

}
It seem to work. But i'm not sure it this change is right.

Can you check here,please?
Thank you.